void
ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc)
{
- BUILD_ASSERT_DECL(FLOW_WC_SEQ == 19);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 23);
/* Initialize most of wc. */
flow_wildcards_init_catchall(wc);
if (!(ofpfw & OFPFW10_IN_PORT)) {
- wc->masks.in_port = UINT16_MAX;
+ wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX);
}
if (!(ofpfw & OFPFW10_NW_TOS)) {
>> OFPFW10_NW_DST_SHIFT);
if (!(ofpfw & OFPFW10_TP_SRC)) {
- wc->masks.tp_src = htons(UINT16_MAX);
+ wc->masks.tp_src = OVS_BE16_MAX;
}
if (!(ofpfw & OFPFW10_TP_DST)) {
- wc->masks.tp_dst = htons(UINT16_MAX);
+ wc->masks.tp_dst = OVS_BE16_MAX;
}
if (!(ofpfw & OFPFW10_DL_SRC)) {
memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN);
}
if (!(ofpfw & OFPFW10_DL_TYPE)) {
- wc->masks.dl_type = htons(UINT16_MAX);
+ wc->masks.dl_type = OVS_BE16_MAX;
}
/* VLAN TCI mask. */
/* Initialize most of match->flow. */
match->flow.nw_src = ofmatch->nw_src;
match->flow.nw_dst = ofmatch->nw_dst;
- match->flow.in_port = ntohs(ofmatch->in_port);
+ match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port));
match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type);
match->flow.tp_src = ofmatch->tp_src;
match->flow.tp_dst = ofmatch->tp_dst;
/* Figure out most OpenFlow wildcards. */
ofpfw = 0;
- if (!wc->masks.in_port) {
+ if (!wc->masks.in_port.ofp_port) {
ofpfw |= OFPFW10_IN_PORT;
}
if (!wc->masks.dl_type) {
/* Compose most of the match structure. */
ofmatch->wildcards = htonl(ofpfw);
- ofmatch->in_port = htons(match->flow.in_port);
+ ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port));
memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN);
memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN);
ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type);
}
}
-/* Converts the ofp11_match in 'match' into a struct match in 'match. Returns
- * 0 if successful, otherwise an OFPERR_* value. */
+/* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'.
+ * Returns 0 if successful, otherwise an OFPERR_* value. */
enum ofperr
ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch,
struct match *match)
match_init_catchall(match);
if (!(wc & OFPFW11_IN_PORT)) {
- uint16_t ofp_port;
+ ofp_port_t ofp_port;
enum ofperr error;
error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port);
if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) {
/* Match only packets without a VLAN tag. */
match->flow.vlan_tci = htons(0);
- match->wc.masks.vlan_tci = htons(UINT16_MAX);
+ match->wc.masks.vlan_tci = OVS_BE16_MAX;
} else {
if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) {
/* Match any packet with a VLAN tag regardless of VID. */
case IPPROTO_TCP:
case IPPROTO_UDP:
+ case IPPROTO_SCTP:
if (!(wc & (OFPFW11_TP_SRC))) {
match_set_tp_src(match, ofmatch->tp_src);
}
}
break;
- case IPPROTO_SCTP:
- /* We don't support SCTP and it seems that we should tell the
- * controller, since OF1.1 implementations are supposed to. */
- return OFPERR_OFPBMC_BAD_FIELD;
-
default:
/* OF1.1 says explicitly to ignore this. */
break;
}
if (eth_type_mpls(match->flow.dl_type)) {
- enum { OFPFW11_MPLS_ALL = OFPFW11_MPLS_LABEL | OFPFW11_MPLS_TC };
-
- if ((wc & OFPFW11_MPLS_ALL) != OFPFW11_MPLS_ALL) {
- /* MPLS not supported. */
- return OFPERR_OFPBMC_BAD_TAG;
+ if (!(wc & OFPFW11_MPLS_LABEL)) {
+ match_set_mpls_label(match, ofmatch->mpls_label);
+ }
+ if (!(wc & OFPFW11_MPLS_TC)) {
+ match_set_mpls_tc(match, ofmatch->mpls_tc);
}
}
ofmatch->omh.type = htons(OFPMT_STANDARD);
ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH);
- if (!match->wc.masks.in_port) {
+ if (!match->wc.masks.in_port.ofp_port) {
wc |= OFPFW11_IN_PORT;
} else {
- ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port);
+ ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port);
}
memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN);
ofmatch->tp_dst = match->flow.tp_dst;
}
- /* MPLS not supported. */
- wc |= OFPFW11_MPLS_LABEL;
- wc |= OFPFW11_MPLS_TC;
+ if (!(match->wc.masks.mpls_lse & htonl(MPLS_LABEL_MASK))) {
+ wc |= OFPFW11_MPLS_LABEL;
+ } else {
+ ofmatch->mpls_label = htonl(mpls_lse_to_label(match->flow.mpls_lse));
+ }
+
+ if (!(match->wc.masks.mpls_lse & htonl(MPLS_TC_MASK))) {
+ wc |= OFPFW11_MPLS_TC;
+ } else {
+ ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse);
+ }
ofmatch->metadata = match->flow.metadata;
ofmatch->metadata_mask = ~match->wc.masks.metadata;
ofmatch->wildcards = htonl(wc);
}
+/* Returns the "typical" length of a match for 'protocol', for use in
+ * estimating space to preallocate. */
+int
+ofputil_match_typical_len(enum ofputil_protocol protocol)
+{
+ switch (protocol) {
+ case OFPUTIL_P_OF10_STD:
+ case OFPUTIL_P_OF10_STD_TID:
+ return sizeof(struct ofp10_match);
+
+ case OFPUTIL_P_OF10_NXM:
+ case OFPUTIL_P_OF10_NXM_TID:
+ return NXM_TYPICAL_LEN;
+
+ case OFPUTIL_P_OF11_STD:
+ return sizeof(struct ofp11_match);
+
+ case OFPUTIL_P_OF12_OXM:
+ case OFPUTIL_P_OF13_OXM:
+ return NXM_TYPICAL_LEN;
+
+ default:
+ NOT_REACHED();
+ }
+}
+
+/* Appends to 'b' an struct ofp11_match_header followed by a match that
+ * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the
+ * data appended out to a multiple of 8. 'protocol' must be one that is usable
+ * in OpenFlow 1.1 or later.
+ *
+ * This function can cause 'b''s data to be reallocated.
+ *
+ * Returns the number of bytes appended to 'b', excluding the padding. Never
+ * returns zero. */
+int
+ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match,
+ enum ofputil_protocol protocol)
+{
+ switch (protocol) {
+ case OFPUTIL_P_OF10_STD:
+ case OFPUTIL_P_OF10_STD_TID:
+ case OFPUTIL_P_OF10_NXM:
+ case OFPUTIL_P_OF10_NXM_TID:
+ NOT_REACHED();
+
+ case OFPUTIL_P_OF11_STD: {
+ struct ofp11_match *om;
+
+ /* Make sure that no padding is needed. */
+ BUILD_ASSERT_DECL(sizeof *om % 8 == 0);
+
+ om = ofpbuf_put_uninit(b, sizeof *om);
+ ofputil_match_to_ofp11_match(match, om);
+ return sizeof *om;
+ }
+
+ case OFPUTIL_P_OF12_OXM:
+ case OFPUTIL_P_OF13_OXM:
+ return oxm_put_match(b, match);
+ }
+
+ NOT_REACHED();
+}
+
/* Given a 'dl_type' value in the format used in struct flow, returns the
* corresponding 'dl_type' value for use in an ofp10_match or ofp11_match
* structure. */
enum ofputil_protocol ofputil_flow_dump_protocols[] = {
OFPUTIL_P_OF13_OXM,
OFPUTIL_P_OF12_OXM,
+ OFPUTIL_P_OF11_STD,
OFPUTIL_P_OF10_NXM,
OFPUTIL_P_OF10_STD,
};
switch (version) {
case OFP10_VERSION:
return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY;
+ case OFP11_VERSION:
+ return OFPUTIL_P_OF11_STD;
case OFP12_VERSION:
return OFPUTIL_P_OF12_OXM;
case OFP13_VERSION:
return OFPUTIL_P_OF13_OXM;
- case OFP11_VERSION:
default:
return 0;
}
case OFPUTIL_P_OF10_NXM:
case OFPUTIL_P_OF10_NXM_TID:
return OFP10_VERSION;
+ case OFPUTIL_P_OF11_STD:
+ return OFP11_VERSION;
case OFPUTIL_P_OF12_OXM:
return OFP12_VERSION;
case OFPUTIL_P_OF13_OXM:
case OFPUTIL_P_OF10_NXM_TID:
return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM;
+ case OFPUTIL_P_OF11_STD:
+ return OFPUTIL_P_OF11_STD;
+
case OFPUTIL_P_OF12_OXM:
return OFPUTIL_P_OF12_OXM;
case OFPUTIL_P_OF10_NXM_TID:
return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid);
+ case OFPUTIL_P_OF11_STD:
+ return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid);
+
case OFPUTIL_P_OF12_OXM:
return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid);
case OFPUTIL_P_OF10_STD_TID:
return "OpenFlow10+table_id";
+ case OFPUTIL_P_OF11_STD:
+ return "OpenFlow11";
+
case OFPUTIL_P_OF12_OXM:
return "OXM-OpenFlow12";
}
static bool
-is_delimiter(char c)
+is_delimiter(unsigned char c)
{
return isspace(c) || c == ',';
}
: -1);
}
-static bool
-regs_fully_wildcarded(const struct flow_wildcards *wc)
-{
- int i;
-
- for (i = 0; i < FLOW_N_REGS; i++) {
- if (wc->masks.regs[i] != 0) {
- return false;
- }
- }
- return true;
-}
-
-static bool
-tun_parms_fully_wildcarded(const struct flow_wildcards *wc)
-{
- return (!wc->masks.tunnel.ip_src &&
- !wc->masks.tunnel.ip_dst &&
- !wc->masks.tunnel.ip_ttl &&
- !wc->masks.tunnel.ip_tos &&
- !wc->masks.tunnel.flags);
-}
-
-/* Returns a bit-mask of ofputil_protocols that can be used for sending 'match'
- * to a switch (e.g. to add or remove a flow). Only NXM can handle tunnel IDs,
- * registers, or fixing the Ethernet multicast bit. Otherwise, it's better to
- * use OpenFlow 1.0 protocol for backward compatibility. */
-enum ofputil_protocol
-ofputil_usable_protocols(const struct match *match)
-{
- const struct flow_wildcards *wc = &match->wc;
-
- BUILD_ASSERT_DECL(FLOW_WC_SEQ == 19);
-
- /* tunnel params other than tun_id can't be sent in a flow_mod */
- if (!tun_parms_fully_wildcarded(wc)) {
- return OFPUTIL_P_NONE;
- }
-
- /* skb_mark and skb_priority can't be sent in a flow_mod */
- if (wc->masks.skb_mark || wc->masks.skb_priority) {
- return OFPUTIL_P_NONE;
- }
-
- /* NXM, OXM, and OF1.1 support bitwise matching on ethernet addresses. */
- if (!eth_mask_is_exact(wc->masks.dl_src)
- && !eth_addr_is_zero(wc->masks.dl_src)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
- if (!eth_mask_is_exact(wc->masks.dl_dst)
- && !eth_addr_is_zero(wc->masks.dl_dst)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM, OXM, and OF1.1+ support matching metadata. */
- if (wc->masks.metadata != htonll(0)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching ARP hardware addresses. */
- if (!eth_addr_is_zero(wc->masks.arp_sha) ||
- !eth_addr_is_zero(wc->masks.arp_tha)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching IPv6 traffic. */
- if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching registers. */
- if (!regs_fully_wildcarded(wc)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching tun_id. */
- if (wc->masks.tunnel.tun_id != htonll(0)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching fragments. */
- if (wc->masks.nw_frag) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching IPv6 flow label. */
- if (wc->masks.ipv6_label) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching IP ECN bits. */
- if (wc->masks.nw_tos & IP_ECN_MASK) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support matching IP TTL/hop limit. */
- if (wc->masks.nw_ttl) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support non-CIDR IPv4 address masks. */
- if (!ip_is_cidr(wc->masks.nw_src) || !ip_is_cidr(wc->masks.nw_dst)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OXM support bitwise matching on transport port. */
- if ((wc->masks.tp_src && wc->masks.tp_src != htons(UINT16_MAX)) ||
- (wc->masks.tp_dst && wc->masks.tp_dst != htons(UINT16_MAX))) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OF1.1+ support matching MPLS label */
- if (wc->masks.mpls_lse & htonl(MPLS_LABEL_MASK)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OF1.1+ support matching MPLS TC */
- if (wc->masks.mpls_lse & htonl(MPLS_TC_MASK)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* NXM and OF1.3+ support matching MPLS stack flag */
- /* Allow for OF1.2 as there doesn't seem to be a
- * particularly good reason not to */
- if (wc->masks.mpls_lse & htonl(MPLS_BOS_MASK)) {
- return OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
- }
-
- /* Other formats can express this rule. */
- return OFPUTIL_P_ANY;
-}
-
void
ofputil_format_version(struct ds *msg, enum ofp_version version)
{
uint32_t *allowed_versionsp)
{
uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh;
- const ovs_be32 *bitmap = (const ovs_be32 *) (oheh + 1);
+ const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1);
uint32_t allowed_versions;
if (!bitmap_len || bitmap_len % sizeof *bitmap) {
/* Returns true if 'allowed_versions' needs to be accompanied by a version
* bitmap to be correctly expressed in an OFPT_HELLO message. */
-static inline bool
+static bool
should_send_version_bitmap(uint32_t allowed_versions)
{
return !is_pow2((allowed_versions >> 1) + 1);
oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8));
oheh->type = htons(OFPHET_VERSIONBITMAP);
oheh->length = htons(map_len + sizeof *oheh);
- *(ovs_be32 *)(oheh + 1) = htonl(allowed_versions);
+ *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions);
ofpmsg_update_length(msg);
}
case OFPUTIL_P_OF10_STD:
return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10);
+ case OFPUTIL_P_OF11_STD:
case OFPUTIL_P_OF12_OXM:
case OFPUTIL_P_OF13_OXM:
- /* There are only one of each OpenFlow 1.2+ protocols and we already
+ /* There is only one variant of each OpenFlow 1.1+ protocol, and we
* verified above that we're not trying to change versions. */
NOT_REACHED();
return msg;
}
+struct ofputil_flow_mod_flag {
+ uint16_t raw_flag;
+ enum ofp_version min_version, max_version;
+ enum ofputil_flow_mod_flags flag;
+};
+
+static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = {
+ { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM },
+ { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP },
+ { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION,
+ OFPUTIL_FF_EMERG },
+ { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS },
+ { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS },
+ { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS },
+ { 0, 0, 0, 0 },
+};
+
+static enum ofperr
+ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_,
+ enum ofp_flow_mod_command command,
+ enum ofp_version version,
+ enum ofputil_flow_mod_flags *flagsp)
+{
+ uint16_t raw_flags = ntohs(raw_flags_);
+ const struct ofputil_flow_mod_flag *f;
+
+ *flagsp = 0;
+ for (f = ofputil_flow_mod_flags; f->raw_flag; f++) {
+ if (raw_flags & f->raw_flag
+ && version >= f->min_version
+ && (!f->max_version || version <= f->max_version)) {
+ raw_flags &= ~f->raw_flag;
+ *flagsp |= f->flag;
+ }
+ }
+
+ /* In OF1.0 and OF1.1, "add" always resets counters, and other commands
+ * never do.
+ *
+ * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command
+ * resets counters. */
+ if ((version == OFP10_VERSION || version == OFP11_VERSION)
+ && command == OFPFC_ADD) {
+ *flagsp |= OFPUTIL_FF_RESET_COUNTS;
+ }
+
+ return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0;
+}
+
+static ovs_be16
+ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags,
+ enum ofp_version version)
+{
+ const struct ofputil_flow_mod_flag *f;
+ uint16_t raw_flags;
+
+ raw_flags = 0;
+ for (f = ofputil_flow_mod_flags; f->raw_flag; f++) {
+ if (f->flag & flags
+ && version >= f->min_version
+ && (!f->max_version || version <= f->max_version)) {
+ raw_flags |= f->raw_flag;
+ }
+ }
+
+ return htons(raw_flags);
+}
+
/* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract
* flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error
* code.
ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
const struct ofp_header *oh,
enum ofputil_protocol protocol,
- struct ofpbuf *ofpacts)
+ struct ofpbuf *ofpacts,
+ ofp_port_t max_port, uint8_t max_table)
{
- uint16_t command;
+ ovs_be16 raw_flags;
+ enum ofperr error;
struct ofpbuf b;
enum ofpraw raw;
ofpbuf_use_const(&b, oh, ntohs(oh->length));
raw = ofpraw_pull_assert(&b);
if (raw == OFPRAW_OFPT11_FLOW_MOD) {
- /* Standard OpenFlow 1.1 flow_mod. */
+ /* Standard OpenFlow 1.1+ flow_mod. */
const struct ofp11_flow_mod *ofm;
- enum ofperr error;
ofm = ofpbuf_pull(&b, sizeof *ofm);
return error;
}
- error = ofpacts_pull_openflow11_instructions(&b, b.size, ofpacts);
+ error = ofpacts_pull_openflow_instructions(&b, b.size, oh->version,
+ ofpacts);
if (error) {
return error;
}
/* Translate the message. */
fm->priority = ntohs(ofm->priority);
- if (ofm->command == OFPFC_ADD) {
+ if (ofm->command == OFPFC_ADD
+ || (oh->version == OFP11_VERSION
+ && (ofm->command == OFPFC_MODIFY ||
+ ofm->command == OFPFC_MODIFY_STRICT)
+ && ofm->cookie_mask == htonll(0))) {
+ /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does
+ * not match on the cookie is treated as an "add" if there is no
+ * match. */
fm->cookie = htonll(0);
fm->cookie_mask = htonll(0);
fm->new_cookie = ofm->cookie;
} else {
fm->cookie = ofm->cookie;
fm->cookie_mask = ofm->cookie_mask;
- fm->new_cookie = htonll(UINT64_MAX);
+ fm->new_cookie = OVS_BE64_MAX;
}
+ fm->modify_cookie = false;
fm->command = ofm->command;
+
+ /* Get table ID.
+ *
+ * OF1.1 entirely forbids table_id == OFPTT_ALL.
+ * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */
fm->table_id = ofm->table_id;
+ if (fm->table_id == OFPTT_ALL
+ && (oh->version == OFP11_VERSION
+ || (ofm->command != OFPFC_DELETE &&
+ ofm->command != OFPFC_DELETE_STRICT))) {
+ return OFPERR_OFPFMFC_BAD_TABLE_ID;
+ }
+
fm->idle_timeout = ntohs(ofm->idle_timeout);
fm->hard_timeout = ntohs(ofm->hard_timeout);
fm->buffer_id = ntohl(ofm->buffer_id);
if (error) {
return error;
}
+ fm->out_group = ntohl(ofm->out_group);
+
if ((ofm->command == OFPFC_DELETE
|| ofm->command == OFPFC_DELETE_STRICT)
&& ofm->out_group != htonl(OFPG_ANY)) {
return OFPERR_OFPFMFC_UNKNOWN;
}
- fm->flags = ntohs(ofm->flags);
+ raw_flags = ofm->flags;
} else {
+ uint16_t command;
+
if (raw == OFPRAW_OFPT10_FLOW_MOD) {
/* Standard OpenFlow 1.0 flow_mod. */
const struct ofp10_flow_mod *ofm;
- enum ofperr error;
/* Get the ofp10_flow_mod. */
ofm = ofpbuf_pull(&b, sizeof *ofm);
ofputil_normalize_match(&fm->match);
/* Now get the actions. */
- error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
+ error = ofpacts_pull_openflow_actions(&b, b.size, oh->version,
+ ofpacts);
if (error) {
return error;
}
fm->idle_timeout = ntohs(ofm->idle_timeout);
fm->hard_timeout = ntohs(ofm->hard_timeout);
fm->buffer_id = ntohl(ofm->buffer_id);
- fm->out_port = ntohs(ofm->out_port);
- fm->flags = ntohs(ofm->flags);
+ fm->out_port = u16_to_ofp(ntohs(ofm->out_port));
+ fm->out_group = OFPG11_ANY;
+ raw_flags = ofm->flags;
} else if (raw == OFPRAW_NXT_FLOW_MOD) {
/* Nicira extended flow_mod. */
const struct nx_flow_mod *nfm;
- enum ofperr error;
/* Dissect the message. */
nfm = ofpbuf_pull(&b, sizeof *nfm);
if (error) {
return error;
}
- error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
+ error = ofpacts_pull_openflow_actions(&b, b.size, oh->version,
+ ofpacts);
if (error) {
return error;
}
fm->idle_timeout = ntohs(nfm->idle_timeout);
fm->hard_timeout = ntohs(nfm->hard_timeout);
fm->buffer_id = ntohl(nfm->buffer_id);
- fm->out_port = ntohs(nfm->out_port);
- fm->flags = ntohs(nfm->flags);
+ fm->out_port = u16_to_ofp(ntohs(nfm->out_port));
+ fm->out_group = OFPG11_ANY;
+ raw_flags = nfm->flags;
} else {
NOT_REACHED();
}
- if (fm->flags & OFPFF10_EMERG) {
- /* We do not support the OpenFlow 1.0 emergency flow cache, which
- * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1.
- *
- * OpenFlow 1.0 specifies the error code to use when idle_timeout
- * or hard_timeout is nonzero. Otherwise, there is no good error
- * code, so just state that the flow table is full. */
- return (fm->hard_timeout || fm->idle_timeout
- ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT
- : OFPERR_OFPFMFC_TABLE_FULL);
- }
-
+ fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX;
if (protocol & OFPUTIL_P_TID) {
fm->command = command & 0xff;
fm->table_id = command >> 8;
fm->ofpacts = ofpacts->data;
fm->ofpacts_len = ofpacts->size;
- return 0;
-}
+ error = ofputil_decode_flow_mod_flags(raw_flags, fm->command,
+ oh->version, &fm->flags);
+ if (error) {
+ return error;
+ }
-static ovs_be16
-ofputil_tid_command(const struct ofputil_flow_mod *fm,
- enum ofputil_protocol protocol)
-{
- return htons(protocol & OFPUTIL_P_TID
- ? (fm->command & 0xff) | (fm->table_id << 8)
- : fm->command);
+ if (fm->flags & OFPUTIL_FF_EMERG) {
+ /* We do not support the OpenFlow 1.0 emergency flow cache, which
+ * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1.
+ *
+ * OpenFlow 1.0 specifies the error code to use when idle_timeout
+ * or hard_timeout is nonzero. Otherwise, there is no good error
+ * code, so just state that the flow table is full. */
+ return (fm->hard_timeout || fm->idle_timeout
+ ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT
+ : OFPERR_OFPFMFC_TABLE_FULL);
+ }
+
+ return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len,
+ &fm->match.flow, max_port,
+ fm->table_id, max_table, protocol);
}
-/* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
- * 'protocol' and returns the message. */
-struct ofpbuf *
-ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
- enum ofputil_protocol protocol)
+static enum ofperr
+ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands,
+ struct ofpbuf *bands)
{
- struct ofpbuf *msg;
-
- switch (protocol) {
- case OFPUTIL_P_OF12_OXM:
- case OFPUTIL_P_OF13_OXM: {
- struct ofp11_flow_mod *ofm;
+ const struct ofp13_meter_band_header *ombh;
+ struct ofputil_meter_band *mb;
+ uint16_t n = 0;
- msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD,
- ofputil_protocol_to_ofp_version(protocol),
- NXM_TYPICAL_LEN + fm->ofpacts_len);
- ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
- if (fm->command == OFPFC_ADD) {
- ofm->cookie = fm->new_cookie;
- } else {
- ofm->cookie = fm->cookie;
- }
- ofm->cookie_mask = fm->cookie_mask;
- ofm->table_id = fm->table_id;
- ofm->command = fm->command;
- ofm->idle_timeout = htons(fm->idle_timeout);
- ofm->hard_timeout = htons(fm->hard_timeout);
- ofm->priority = htons(fm->priority);
- ofm->buffer_id = htonl(fm->buffer_id);
- ofm->out_port = ofputil_port_to_ofp11(fm->out_port);
- ofm->out_group = htonl(OFPG11_ANY);
- ofm->flags = htons(fm->flags);
- oxm_put_match(msg, &fm->match);
- ofpacts_put_openflow11_instructions(fm->ofpacts, fm->ofpacts_len, msg);
- break;
+ ombh = ofpbuf_try_pull(msg, len);
+ if (!ombh) {
+ return OFPERR_OFPBRC_BAD_LEN;
}
- case OFPUTIL_P_OF10_STD:
- case OFPUTIL_P_OF10_STD_TID: {
- struct ofp10_flow_mod *ofm;
-
- msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION,
- fm->ofpacts_len);
- ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
- ofputil_match_to_ofp10_match(&fm->match, &ofm->match);
- ofm->cookie = fm->new_cookie;
- ofm->command = ofputil_tid_command(fm, protocol);
- ofm->idle_timeout = htons(fm->idle_timeout);
- ofm->hard_timeout = htons(fm->hard_timeout);
- ofm->priority = htons(fm->priority);
- ofm->buffer_id = htonl(fm->buffer_id);
- ofm->out_port = htons(fm->out_port);
- ofm->flags = htons(fm->flags);
- ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg);
- break;
+ while (len >= sizeof (struct ofp13_meter_band_drop)) {
+ size_t ombh_len = ntohs(ombh->len);
+ /* All supported band types have the same length. */
+ if (ombh_len != sizeof (struct ofp13_meter_band_drop)) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+ mb = ofpbuf_put_uninit(bands, sizeof *mb);
+ mb->type = ntohs(ombh->type);
+ if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) {
+ return OFPERR_OFPMMFC_BAD_BAND;
+ }
+ mb->rate = ntohl(ombh->rate);
+ mb->burst_size = ntohl(ombh->burst_size);
+ mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ?
+ ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0;
+ n++;
+ len -= ombh_len;
+ ombh = ALIGNED_CAST(struct ofp13_meter_band_header *,
+ (char *) ombh + ombh_len);
+ }
+ if (len) {
+ return OFPERR_OFPBRC_BAD_LEN;
}
+ *n_bands = n;
+ return 0;
+}
- case OFPUTIL_P_OF10_NXM:
- case OFPUTIL_P_OF10_NXM_TID: {
- struct nx_flow_mod *nfm;
- int match_len;
+enum ofperr
+ofputil_decode_meter_mod(const struct ofp_header *oh,
+ struct ofputil_meter_mod *mm,
+ struct ofpbuf *bands)
+{
+ const struct ofp13_meter_mod *omm;
+ struct ofpbuf b;
- msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION,
- NXM_TYPICAL_LEN + fm->ofpacts_len);
- nfm = ofpbuf_put_zeros(msg, sizeof *nfm);
- nfm->command = ofputil_tid_command(fm, protocol);
- nfm->cookie = fm->new_cookie;
- match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask);
- nfm = msg->l3;
- nfm->idle_timeout = htons(fm->idle_timeout);
- nfm->hard_timeout = htons(fm->hard_timeout);
- nfm->priority = htons(fm->priority);
- nfm->buffer_id = htonl(fm->buffer_id);
- nfm->out_port = htons(fm->out_port);
- nfm->flags = htons(fm->flags);
- nfm->match_len = htons(match_len);
- ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg);
- break;
- }
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ ofpraw_pull_assert(&b);
+ omm = ofpbuf_pull(&b, sizeof *omm);
- default:
- NOT_REACHED();
+ /* Translate the message. */
+ mm->command = ntohs(omm->command);
+ if (mm->command != OFPMC13_ADD &&
+ mm->command != OFPMC13_MODIFY &&
+ mm->command != OFPMC13_DELETE) {
+ return OFPERR_OFPMMFC_BAD_COMMAND;
}
+ mm->meter.meter_id = ntohl(omm->meter_id);
- ofpmsg_update_length(msg);
- return msg;
-}
-
-/* Returns a bitmask with a 1-bit for each protocol that could be used to
- * send all of the 'n_fm's flow table modification requests in 'fms', and a
- * 0-bit for each protocol that is inadequate.
- *
- * (The return value will have at least one 1-bit.) */
-enum ofputil_protocol
-ofputil_flow_mod_usable_protocols(const struct ofputil_flow_mod *fms,
- size_t n_fms)
-{
- enum ofputil_protocol usable_protocols;
- size_t i;
-
- usable_protocols = OFPUTIL_P_ANY;
- for (i = 0; i < n_fms; i++) {
- const struct ofputil_flow_mod *fm = &fms[i];
+ if (mm->command == OFPMC13_DELETE) {
+ mm->meter.flags = 0;
+ mm->meter.n_bands = 0;
+ mm->meter.bands = NULL;
+ } else {
+ enum ofperr error;
- usable_protocols &= ofputil_usable_protocols(&fm->match);
- if (fm->table_id != 0xff) {
- usable_protocols &= OFPUTIL_P_TID;
+ mm->meter.flags = ntohs(omm->flags);
+ if (mm->meter.flags & OFPMF13_KBPS &&
+ mm->meter.flags & OFPMF13_PKTPS) {
+ return OFPERR_OFPMMFC_BAD_FLAGS;
}
+ mm->meter.bands = bands->data;
- /* Matching of the cookie is only supported through NXM or OF1.1+. */
- if (fm->cookie_mask != htonll(0)) {
- usable_protocols &= OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
+ error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands);
+ if (error) {
+ return error;
}
}
-
- return usable_protocols;
+ return 0;
}
-static enum ofperr
-ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr,
- const struct ofp10_flow_stats_request *ofsr,
- bool aggregate)
+void
+ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id)
{
- fsr->aggregate = aggregate;
- ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match);
- fsr->out_port = ntohs(ofsr->out_port);
- fsr->table_id = ofsr->table_id;
- fsr->cookie = fsr->cookie_mask = htonll(0);
+ const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh);
+ *meter_id = ntohl(omr->meter_id);
+}
- return 0;
+struct ofpbuf *
+ofputil_encode_meter_request(enum ofp_version ofp_version,
+ enum ofputil_meter_request_type type,
+ uint32_t meter_id)
+{
+ struct ofpbuf *msg;
+
+ enum ofpraw raw;
+
+ switch (type) {
+ case OFPUTIL_METER_CONFIG:
+ raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST;
+ break;
+ case OFPUTIL_METER_STATS:
+ raw = OFPRAW_OFPST13_METER_REQUEST;
+ break;
+ default:
+ case OFPUTIL_METER_FEATURES:
+ raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST;
+ break;
+ }
+
+ msg = ofpraw_alloc(raw, ofp_version, 0);
+
+ if (type != OFPUTIL_METER_FEATURES) {
+ struct ofp13_meter_multipart_request *omr;
+ omr = ofpbuf_put_zeros(msg, sizeof *omr);
+ omr->meter_id = htonl(meter_id);
+ }
+ return msg;
}
-static enum ofperr
-ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr,
- struct ofpbuf *b, bool aggregate)
+static void
+ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb,
+ struct ofpbuf *msg)
{
- const struct ofp11_flow_stats_request *ofsr;
- enum ofperr error;
+ uint16_t n = 0;
- ofsr = ofpbuf_pull(b, sizeof *ofsr);
- fsr->aggregate = aggregate;
- fsr->table_id = ofsr->table_id;
- error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port);
- if (error) {
- return error;
+ for (n = 0; n < n_bands; ++n) {
+ /* Currently all band types have same size. */
+ struct ofp13_meter_band_dscp_remark *ombh;
+ size_t ombh_len = sizeof *ombh;
+
+ ombh = ofpbuf_put_zeros(msg, ombh_len);
+
+ ombh->type = htons(mb->type);
+ ombh->len = htons(ombh_len);
+ ombh->rate = htonl(mb->rate);
+ ombh->burst_size = htonl(mb->burst_size);
+ ombh->prec_level = mb->prec_level;
+
+ mb++;
}
- if (ofsr->out_group != htonl(OFPG11_ANY)) {
- return OFPERR_OFPFMFC_UNKNOWN;
+}
+
+/* Encode a meter stat for 'mc' and append it to 'replies'. */
+void
+ofputil_append_meter_config(struct list *replies,
+ const struct ofputil_meter_config *mc)
+{
+ struct ofpbuf *msg = ofpbuf_from_list(list_back(replies));
+ size_t start_ofs = msg->size;
+ struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply);
+ reply->flags = htons(mc->flags);
+ reply->meter_id = htonl(mc->meter_id);
+
+ ofputil_put_bands(mc->n_bands, mc->bands, msg);
+
+ reply->length = htons(msg->size - start_ofs);
+
+ ofpmp_postappend(replies, start_ofs);
+}
+
+/* Encode a meter stat for 'ms' and append it to 'replies'. */
+void
+ofputil_append_meter_stats(struct list *replies,
+ const struct ofputil_meter_stats *ms)
+{
+ struct ofp13_meter_stats *reply;
+ uint16_t n = 0;
+ uint16_t len;
+
+ len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats);
+ reply = ofpmp_append(replies, len);
+
+ reply->meter_id = htonl(ms->meter_id);
+ reply->len = htons(len);
+ memset(reply->pad, 0, sizeof reply->pad);
+ reply->flow_count = htonl(ms->flow_count);
+ reply->packet_in_count = htonll(ms->packet_in_count);
+ reply->byte_in_count = htonll(ms->byte_in_count);
+ reply->duration_sec = htonl(ms->duration_sec);
+ reply->duration_nsec = htonl(ms->duration_nsec);
+
+ for (n = 0; n < ms->n_bands; ++n) {
+ const struct ofputil_meter_band_stats *src = &ms->bands[n];
+ struct ofp13_meter_band_stats *dst = &reply->band_stats[n];
+
+ dst->packet_band_count = htonll(src->packet_count);
+ dst->byte_band_count = htonll(src->byte_count);
}
- fsr->cookie = ofsr->cookie;
- fsr->cookie_mask = ofsr->cookie_mask;
- error = ofputil_pull_ofp11_match(b, &fsr->match, NULL);
- if (error) {
- return error;
+}
+
+/* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract
+ * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into
+ * 'bands'. The caller must have initialized 'bands' and retains ownership of
+ * it across the call.
+ *
+ * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow
+ * message. Calling this function multiple times for a single 'msg' iterates
+ * through the replies. 'bands' is cleared for each reply.
+ *
+ * Returns 0 if successful, EOF if no replies were left in this 'msg',
+ * otherwise a positive errno value. */
+int
+ofputil_decode_meter_config(struct ofpbuf *msg,
+ struct ofputil_meter_config *mc,
+ struct ofpbuf *bands)
+{
+ const struct ofp13_meter_config *omc;
+ enum ofperr err;
+
+ /* Pull OpenFlow headers for the first call. */
+ if (!msg->l2) {
+ ofpraw_pull_assert(msg);
+ }
+
+ if (!msg->size) {
+ return EOF;
+ }
+
+ omc = ofpbuf_try_pull(msg, sizeof *omc);
+ if (!omc) {
+ VLOG_WARN_RL(&bad_ofmsg_rl,
+ "OFPMP_METER_CONFIG reply has %"PRIuSIZE" leftover bytes at end",
+ msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ ofpbuf_clear(bands);
+ err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc,
+ &mc->n_bands, bands);
+ if (err) {
+ return err;
}
+ mc->meter_id = ntohl(omc->meter_id);
+ mc->flags = ntohs(omc->flags);
+ mc->bands = bands->data;
return 0;
}
static enum ofperr
-ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr,
- struct ofpbuf *b, bool aggregate)
+ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands,
+ struct ofpbuf *bands)
{
- const struct nx_flow_stats_request *nfsr;
- enum ofperr error;
+ const struct ofp13_meter_band_stats *ombs;
+ struct ofputil_meter_band_stats *mbs;
+ uint16_t n, i;
- nfsr = ofpbuf_pull(b, sizeof *nfsr);
- error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match,
- &fsr->cookie, &fsr->cookie_mask);
- if (error) {
- return error;
+ ombs = ofpbuf_try_pull(msg, len);
+ if (!ombs) {
+ return OFPERR_OFPBRC_BAD_LEN;
}
- if (b->size) {
+
+ n = len / sizeof *ombs;
+ if (len != n * sizeof *ombs) {
return OFPERR_OFPBRC_BAD_LEN;
}
- fsr->aggregate = aggregate;
- fsr->out_port = ntohs(nfsr->out_port);
- fsr->table_id = nfsr->table_id;
+ mbs = ofpbuf_put_uninit(bands, len);
+ for (i = 0; i < n; ++i) {
+ mbs[i].packet_count = ntohll(ombs[i].packet_band_count);
+ mbs[i].byte_count = ntohll(ombs[i].byte_band_count);
+ }
+ *n_bands = n;
return 0;
}
-/* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE
- * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if
- * successful, otherwise an OpenFlow error code. */
-enum ofperr
-ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr,
- const struct ofp_header *oh)
+/* Converts an OFPMP_METER reply in 'msg' into an abstract
+ * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats
+ * decoded into 'bands'.
+ *
+ * Multiple OFPMP_METER replies can be packed into a single OpenFlow
+ * message. Calling this function multiple times for a single 'msg' iterates
+ * through the replies. 'bands' is cleared for each reply.
+ *
+ * Returns 0 if successful, EOF if no replies were left in this 'msg',
+ * otherwise a positive errno value. */
+int
+ofputil_decode_meter_stats(struct ofpbuf *msg,
+ struct ofputil_meter_stats *ms,
+ struct ofpbuf *bands)
{
- enum ofpraw raw;
- struct ofpbuf b;
+ const struct ofp13_meter_stats *oms;
+ enum ofperr err;
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
- raw = ofpraw_pull_assert(&b);
- switch ((int) raw) {
- case OFPRAW_OFPST10_FLOW_REQUEST:
- return ofputil_decode_ofpst10_flow_request(fsr, b.data, false);
+ /* Pull OpenFlow headers for the first call. */
+ if (!msg->l2) {
+ ofpraw_pull_assert(msg);
+ }
- case OFPRAW_OFPST10_AGGREGATE_REQUEST:
- return ofputil_decode_ofpst10_flow_request(fsr, b.data, true);
+ if (!msg->size) {
+ return EOF;
+ }
- case OFPRAW_OFPST11_FLOW_REQUEST:
- return ofputil_decode_ofpst11_flow_request(fsr, &b, false);
+ oms = ofpbuf_try_pull(msg, sizeof *oms);
+ if (!oms) {
+ VLOG_WARN_RL(&bad_ofmsg_rl,
+ "OFPMP_METER reply has %"PRIuSIZE" leftover bytes at end",
+ msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
- case OFPRAW_OFPST11_AGGREGATE_REQUEST:
- return ofputil_decode_ofpst11_flow_request(fsr, &b, true);
+ ofpbuf_clear(bands);
+ err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms,
+ &ms->n_bands, bands);
+ if (err) {
+ return err;
+ }
+ ms->meter_id = ntohl(oms->meter_id);
+ ms->flow_count = ntohl(oms->flow_count);
+ ms->packet_in_count = ntohll(oms->packet_in_count);
+ ms->byte_in_count = ntohll(oms->byte_in_count);
+ ms->duration_sec = ntohl(oms->duration_sec);
+ ms->duration_nsec = ntohl(oms->duration_nsec);
+ ms->bands = bands->data;
- case OFPRAW_NXST_FLOW_REQUEST:
- return ofputil_decode_nxst_flow_request(fsr, &b, false);
+ return 0;
+}
- case OFPRAW_NXST_AGGREGATE_REQUEST:
- return ofputil_decode_nxst_flow_request(fsr, &b, true);
+void
+ofputil_decode_meter_features(const struct ofp_header *oh,
+ struct ofputil_meter_features *mf)
+{
+ const struct ofp13_meter_features *omf = ofpmsg_body(oh);
- default:
- /* Hey, the caller lied. */
- NOT_REACHED();
+ mf->max_meters = ntohl(omf->max_meter);
+ mf->band_types = ntohl(omf->band_types);
+ mf->capabilities = ntohl(omf->capabilities);
+ mf->max_bands = omf->max_bands;
+ mf->max_color = omf->max_color;
+}
+
+struct ofpbuf *
+ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf,
+ const struct ofp_header *request)
+{
+ struct ofpbuf *reply;
+ struct ofp13_meter_features *omf;
+
+ reply = ofpraw_alloc_stats_reply(request, 0);
+ omf = ofpbuf_put_zeros(reply, sizeof *omf);
+
+ omf->max_meter = htonl(mf->max_meters);
+ omf->band_types = htonl(mf->band_types);
+ omf->capabilities = htonl(mf->capabilities);
+ omf->max_bands = mf->max_bands;
+ omf->max_color = mf->max_color;
+
+ return reply;
+}
+
+struct ofpbuf *
+ofputil_encode_meter_mod(enum ofp_version ofp_version,
+ const struct ofputil_meter_mod *mm)
+{
+ struct ofpbuf *msg;
+
+ struct ofp13_meter_mod *omm;
+
+ msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version,
+ NXM_TYPICAL_LEN + mm->meter.n_bands * 16);
+ omm = ofpbuf_put_zeros(msg, sizeof *omm);
+ omm->command = htons(mm->command);
+ if (mm->command != OFPMC13_DELETE) {
+ omm->flags = htons(mm->meter.flags);
}
+ omm->meter_id = htonl(mm->meter.meter_id);
+
+ ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg);
+
+ ofpmsg_update_length(msg);
+ return msg;
}
-/* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW,
- * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to
- * 'protocol', and returns the message. */
+static ovs_be16
+ofputil_tid_command(const struct ofputil_flow_mod *fm,
+ enum ofputil_protocol protocol)
+{
+ return htons(protocol & OFPUTIL_P_TID
+ ? (fm->command & 0xff) | (fm->table_id << 8)
+ : fm->command);
+}
+
+/* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
+ * 'protocol' and returns the message. */
struct ofpbuf *
-ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr,
- enum ofputil_protocol protocol)
+ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
+ enum ofputil_protocol protocol)
{
+ enum ofp_version version = ofputil_protocol_to_ofp_version(protocol);
+ ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version);
struct ofpbuf *msg;
- enum ofpraw raw;
switch (protocol) {
+ case OFPUTIL_P_OF11_STD:
case OFPUTIL_P_OF12_OXM:
case OFPUTIL_P_OF13_OXM: {
- struct ofp11_flow_stats_request *ofsr;
+ struct ofp11_flow_mod *ofm;
+ int tailroom;
- raw = (fsr->aggregate
- ? OFPRAW_OFPST11_AGGREGATE_REQUEST
- : OFPRAW_OFPST11_FLOW_REQUEST);
- msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol),
- NXM_TYPICAL_LEN);
- ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
- ofsr->table_id = fsr->table_id;
- ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port);
- ofsr->out_group = htonl(OFPG11_ANY);
- ofsr->cookie = fsr->cookie;
- ofsr->cookie_mask = fsr->cookie_mask;
- oxm_put_match(msg, &fsr->match);
+ tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len;
+ msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom);
+ ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
+ if ((protocol == OFPUTIL_P_OF11_STD
+ && (fm->command == OFPFC_MODIFY ||
+ fm->command == OFPFC_MODIFY_STRICT)
+ && fm->cookie_mask == htonll(0))
+ || fm->command == OFPFC_ADD) {
+ ofm->cookie = fm->new_cookie;
+ } else {
+ ofm->cookie = fm->cookie;
+ }
+ ofm->cookie_mask = fm->cookie_mask;
+ if (fm->table_id != OFPTT_ALL
+ || (protocol != OFPUTIL_P_OF11_STD
+ && (fm->command == OFPFC_DELETE ||
+ fm->command == OFPFC_DELETE_STRICT))) {
+ ofm->table_id = fm->table_id;
+ } else {
+ ofm->table_id = 0;
+ }
+ ofm->command = fm->command;
+ ofm->idle_timeout = htons(fm->idle_timeout);
+ ofm->hard_timeout = htons(fm->hard_timeout);
+ ofm->priority = htons(fm->priority);
+ ofm->buffer_id = htonl(fm->buffer_id);
+ ofm->out_port = ofputil_port_to_ofp11(fm->out_port);
+ ofm->out_group = htonl(fm->out_group);
+ ofm->flags = raw_flags;
+ ofputil_put_ofp11_match(msg, &fm->match, protocol);
+ ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg,
+ version);
break;
}
case OFPUTIL_P_OF10_STD:
case OFPUTIL_P_OF10_STD_TID: {
- struct ofp10_flow_stats_request *ofsr;
+ struct ofp10_flow_mod *ofm;
- raw = (fsr->aggregate
- ? OFPRAW_OFPST10_AGGREGATE_REQUEST
- : OFPRAW_OFPST10_FLOW_REQUEST);
- msg = ofpraw_alloc(raw, OFP10_VERSION, 0);
- ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
- ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match);
- ofsr->table_id = fsr->table_id;
- ofsr->out_port = htons(fsr->out_port);
+ msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION,
+ fm->ofpacts_len);
+ ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
+ ofputil_match_to_ofp10_match(&fm->match, &ofm->match);
+ ofm->cookie = fm->new_cookie;
+ ofm->command = ofputil_tid_command(fm, protocol);
+ ofm->idle_timeout = htons(fm->idle_timeout);
+ ofm->hard_timeout = htons(fm->hard_timeout);
+ ofm->priority = htons(fm->priority);
+ ofm->buffer_id = htonl(fm->buffer_id);
+ ofm->out_port = htons(ofp_to_u16(fm->out_port));
+ ofm->flags = raw_flags;
+ ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
+ version);
break;
}
case OFPUTIL_P_OF10_NXM:
case OFPUTIL_P_OF10_NXM_TID: {
- struct nx_flow_stats_request *nfsr;
+ struct nx_flow_mod *nfm;
int match_len;
- raw = (fsr->aggregate
- ? OFPRAW_NXST_AGGREGATE_REQUEST
- : OFPRAW_NXST_FLOW_REQUEST);
- msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN);
- ofpbuf_put_zeros(msg, sizeof *nfsr);
- match_len = nx_put_match(msg, &fsr->match,
- fsr->cookie, fsr->cookie_mask);
-
- nfsr = msg->l3;
- nfsr->out_port = htons(fsr->out_port);
- nfsr->match_len = htons(match_len);
- nfsr->table_id = fsr->table_id;
+ msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION,
+ NXM_TYPICAL_LEN + fm->ofpacts_len);
+ nfm = ofpbuf_put_zeros(msg, sizeof *nfm);
+ nfm->command = ofputil_tid_command(fm, protocol);
+ nfm->cookie = fm->new_cookie;
+ match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask);
+ nfm = msg->l3;
+ nfm->idle_timeout = htons(fm->idle_timeout);
+ nfm->hard_timeout = htons(fm->hard_timeout);
+ nfm->priority = htons(fm->priority);
+ nfm->buffer_id = htonl(fm->buffer_id);
+ nfm->out_port = htons(ofp_to_u16(fm->out_port));
+ nfm->flags = raw_flags;
+ nfm->match_len = htons(match_len);
+ ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
+ version);
break;
}
NOT_REACHED();
}
+ ofpmsg_update_length(msg);
return msg;
}
-/* Returns a bitmask with a 1-bit for each protocol that could be used to
- * accurately encode 'fsr', and a 0-bit for each protocol that is inadequate.
- *
- * (The return value will have at least one 1-bit.) */
-enum ofputil_protocol
-ofputil_flow_stats_request_usable_protocols(
- const struct ofputil_flow_stats_request *fsr)
+static enum ofperr
+ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr,
+ const struct ofp10_flow_stats_request *ofsr,
+ bool aggregate)
{
- enum ofputil_protocol usable_protocols;
-
- usable_protocols = ofputil_usable_protocols(&fsr->match);
- if (fsr->cookie_mask != htonll(0)) {
- usable_protocols &= OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF12_OXM
- | OFPUTIL_P_OF13_OXM;
+ fsr->aggregate = aggregate;
+ ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match);
+ fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port));
+ fsr->out_group = OFPG11_ANY;
+ fsr->table_id = ofsr->table_id;
+ fsr->cookie = fsr->cookie_mask = htonll(0);
+
+ return 0;
+}
+
+static enum ofperr
+ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr,
+ struct ofpbuf *b, bool aggregate)
+{
+ const struct ofp11_flow_stats_request *ofsr;
+ enum ofperr error;
+
+ ofsr = ofpbuf_pull(b, sizeof *ofsr);
+ fsr->aggregate = aggregate;
+ fsr->table_id = ofsr->table_id;
+ error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port);
+ if (error) {
+ return error;
+ }
+ fsr->out_group = ntohl(ofsr->out_group);
+ fsr->cookie = ofsr->cookie;
+ fsr->cookie_mask = ofsr->cookie_mask;
+ error = ofputil_pull_ofp11_match(b, &fsr->match, NULL);
+ if (error) {
+ return error;
}
- return usable_protocols;
+
+ return 0;
}
-/* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract
- * ofputil_flow_stats in 'fs'.
- *
- * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single
- * OpenFlow message. Calling this function multiple times for a single 'msg'
- * iterates through the replies. The caller must initially leave 'msg''s layer
- * pointers null and not modify them between calls.
- *
- * Most switches don't send the values needed to populate fs->idle_age and
- * fs->hard_age, so those members will usually be set to 0. If the switch from
- * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass
- * 'flow_age_extension' as true so that the contents of 'msg' determine the
- * 'idle_age' and 'hard_age' members in 'fs'.
- *
- * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats
- * reply's actions. The caller must initialize 'ofpacts' and retains ownership
- * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer.
- *
- * Returns 0 if successful, EOF if no replies were left in this 'msg',
- * otherwise a positive errno value. */
-int
-ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
- struct ofpbuf *msg,
- bool flow_age_extension,
- struct ofpbuf *ofpacts)
+static enum ofperr
+ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr,
+ struct ofpbuf *b, bool aggregate)
{
+ const struct nx_flow_stats_request *nfsr;
enum ofperr error;
- enum ofpraw raw;
- error = (msg->l2
- ? ofpraw_decode(&raw, msg->l2)
- : ofpraw_pull(&raw, msg));
+ nfsr = ofpbuf_pull(b, sizeof *nfsr);
+ error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match,
+ &fsr->cookie, &fsr->cookie_mask);
if (error) {
return error;
}
+ if (b->size) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
- if (!msg->size) {
- return EOF;
- } else if (raw == OFPRAW_OFPST11_FLOW_REPLY
- || raw == OFPRAW_OFPST13_FLOW_REPLY) {
- const struct ofp11_flow_stats *ofs;
- size_t length;
- uint16_t padded_match_len;
+ fsr->aggregate = aggregate;
+ fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port));
+ fsr->out_group = OFPG11_ANY;
+ fsr->table_id = nfsr->table_id;
- ofs = ofpbuf_try_pull(msg, sizeof *ofs);
- if (!ofs) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover "
- "bytes at end", msg->size);
- return EINVAL;
- }
+ return 0;
+}
- length = ntohs(ofs->length);
- if (length < sizeof *ofs) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
- "length %zu", length);
- return EINVAL;
- }
+/* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified
+ * 'port', suitable for OpenFlow version 'version'. */
+struct ofpbuf *
+ofputil_encode_queue_get_config_request(enum ofp_version version,
+ ofp_port_t port)
+{
+ struct ofpbuf *request;
- if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match");
- return EINVAL;
- }
+ if (version == OFP10_VERSION) {
+ struct ofp10_queue_get_config_request *qgcr10;
- if (ofpacts_pull_openflow11_instructions(msg, length - sizeof *ofs -
- padded_match_len, ofpacts)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions");
- return EINVAL;
- }
+ request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST,
+ version, 0);
+ qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10);
+ qgcr10->port = htons(ofp_to_u16(port));
+ } else {
+ struct ofp11_queue_get_config_request *qgcr11;
- fs->priority = ntohs(ofs->priority);
- fs->table_id = ofs->table_id;
- fs->duration_sec = ntohl(ofs->duration_sec);
- fs->duration_nsec = ntohl(ofs->duration_nsec);
- fs->idle_timeout = ntohs(ofs->idle_timeout);
- fs->hard_timeout = ntohs(ofs->hard_timeout);
- fs->flags = (raw == OFPRAW_OFPST13_FLOW_REPLY) ? ntohs(ofs->flags) : 0;
- fs->idle_age = -1;
- fs->hard_age = -1;
- fs->cookie = ofs->cookie;
- fs->packet_count = ntohll(ofs->packet_count);
- fs->byte_count = ntohll(ofs->byte_count);
- } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) {
- const struct ofp10_flow_stats *ofs;
- size_t length;
+ request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST,
+ version, 0);
+ qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11);
+ qgcr11->port = ofputil_port_to_ofp11(port);
+ }
- ofs = ofpbuf_try_pull(msg, sizeof *ofs);
- if (!ofs) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover "
- "bytes at end", msg->size);
- return EINVAL;
- }
+ return request;
+}
- length = ntohs(ofs->length);
- if (length < sizeof *ofs) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
- "length %zu", length);
- return EINVAL;
- }
+/* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the
+ * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error
+ * code. */
+enum ofperr
+ofputil_decode_queue_get_config_request(const struct ofp_header *oh,
+ ofp_port_t *port)
+{
+ const struct ofp10_queue_get_config_request *qgcr10;
+ const struct ofp11_queue_get_config_request *qgcr11;
+ enum ofpraw raw;
+ struct ofpbuf b;
- if (ofpacts_pull_openflow10(msg, length - sizeof *ofs, ofpacts)) {
- return EINVAL;
- }
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
- fs->cookie = get_32aligned_be64(&ofs->cookie);
- ofputil_match_from_ofp10_match(&ofs->match, &fs->match);
- fs->priority = ntohs(ofs->priority);
- fs->table_id = ofs->table_id;
- fs->duration_sec = ntohl(ofs->duration_sec);
- fs->duration_nsec = ntohl(ofs->duration_nsec);
- fs->idle_timeout = ntohs(ofs->idle_timeout);
- fs->hard_timeout = ntohs(ofs->hard_timeout);
- fs->idle_age = -1;
- fs->hard_age = -1;
- fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count));
- fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count));
- fs->flags = 0;
- } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
- const struct nx_flow_stats *nfs;
- size_t match_len, actions_len, length;
+ switch ((int) raw) {
+ case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST:
+ qgcr10 = b.data;
+ *port = u16_to_ofp(ntohs(qgcr10->port));
+ return 0;
- nfs = ofpbuf_try_pull(msg, sizeof *nfs);
- if (!nfs) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %zu leftover "
- "bytes at end", msg->size);
- return EINVAL;
- }
+ case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST:
+ qgcr11 = b.data;
+ return ofputil_port_from_ofp11(qgcr11->port, port);
+ }
- length = ntohs(nfs->length);
- match_len = ntohs(nfs->match_len);
- if (length < sizeof *nfs + ROUND_UP(match_len, 8)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%zu "
- "claims invalid length %zu", match_len, length);
- return EINVAL;
- }
- if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) {
- return EINVAL;
- }
+ NOT_REACHED();
+}
- actions_len = length - sizeof *nfs - ROUND_UP(match_len, 8);
- if (ofpacts_pull_openflow10(msg, actions_len, ofpacts)) {
- return EINVAL;
- }
+/* Constructs and returns the beginning of a reply to
+ * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about
+ * individual queues with ofputil_append_queue_get_config_reply(). */
+struct ofpbuf *
+ofputil_encode_queue_get_config_reply(const struct ofp_header *oh)
+{
+ struct ofp10_queue_get_config_reply *qgcr10;
+ struct ofp11_queue_get_config_reply *qgcr11;
+ struct ofpbuf *reply;
+ enum ofperr error;
+ struct ofpbuf b;
+ enum ofpraw raw;
+ ofp_port_t port;
- fs->cookie = nfs->cookie;
- fs->table_id = nfs->table_id;
- fs->duration_sec = ntohl(nfs->duration_sec);
- fs->duration_nsec = ntohl(nfs->duration_nsec);
- fs->priority = ntohs(nfs->priority);
- fs->idle_timeout = ntohs(nfs->idle_timeout);
- fs->hard_timeout = ntohs(nfs->hard_timeout);
- fs->idle_age = -1;
- fs->hard_age = -1;
- if (flow_age_extension) {
- if (nfs->idle_age) {
- fs->idle_age = ntohs(nfs->idle_age) - 1;
- }
- if (nfs->hard_age) {
- fs->hard_age = ntohs(nfs->hard_age) - 1;
- }
- }
- fs->packet_count = ntohll(nfs->packet_count);
- fs->byte_count = ntohll(nfs->byte_count);
- fs->flags = 0;
- } else {
+ error = ofputil_decode_queue_get_config_request(oh, &port);
+ ovs_assert(!error);
+
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+
+ switch ((int) raw) {
+ case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST:
+ reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY,
+ oh, 0);
+ qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10);
+ qgcr10->port = htons(ofp_to_u16(port));
+ break;
+
+ case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST:
+ reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY,
+ oh, 0);
+ qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11);
+ qgcr11->port = ofputil_port_to_ofp11(port);
+ break;
+
+ default:
NOT_REACHED();
}
- fs->ofpacts = ofpacts->data;
- fs->ofpacts_len = ofpacts->size;
-
- return 0;
+ return reply;
}
-/* Returns 'count' unchanged except that UINT64_MAX becomes 0.
- *
- * We use this in situations where OVS internally uses UINT64_MAX to mean
- * "value unknown" but OpenFlow 1.0 does not define any unknown value. */
-static uint64_t
-unknown_to_zero(uint64_t count)
+static void
+put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property,
+ uint16_t rate)
{
- return count != UINT64_MAX ? count : 0;
+ if (rate != UINT16_MAX) {
+ struct ofp_queue_prop_rate *oqpr;
+
+ oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr);
+ oqpr->prop_header.property = htons(property);
+ oqpr->prop_header.len = htons(sizeof *oqpr);
+ oqpr->rate = htons(rate);
+ }
}
-/* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to
- * those already present in the list of ofpbufs in 'replies'. 'replies' should
- * have been initialized with ofputil_start_stats_reply(). */
+/* Appends a queue description for 'queue_id' to the
+ * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */
void
-ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs,
- struct list *replies)
+ofputil_append_queue_get_config_reply(struct ofpbuf *reply,
+ const struct ofputil_queue_config *oqc)
{
- struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
- size_t start_ofs = reply->size;
- enum ofpraw raw;
+ const struct ofp_header *oh = reply->data;
+ size_t start_ofs, len_ofs;
+ ovs_be16 *len;
- ofpraw_decode_partial(&raw, reply->data, reply->size);
- if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) {
- struct ofp11_flow_stats *ofs;
+ start_ofs = reply->size;
+ if (oh->version < OFP12_VERSION) {
+ struct ofp10_packet_queue *opq10;
- ofpbuf_put_uninit(reply, sizeof *ofs);
- oxm_put_match(reply, &fs->match);
- ofpacts_put_openflow11_instructions(fs->ofpacts, fs->ofpacts_len,
- reply);
+ opq10 = ofpbuf_put_zeros(reply, sizeof *opq10);
+ opq10->queue_id = htonl(oqc->queue_id);
+ len_ofs = (char *) &opq10->len - (char *) reply->data;
+ } else {
+ struct ofp11_queue_get_config_reply *qgcr11;
+ struct ofp12_packet_queue *opq12;
+ ovs_be32 port;
- ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
- ofs->length = htons(reply->size - start_ofs);
- ofs->table_id = fs->table_id;
- ofs->pad = 0;
- ofs->duration_sec = htonl(fs->duration_sec);
- ofs->duration_nsec = htonl(fs->duration_nsec);
- ofs->priority = htons(fs->priority);
- ofs->idle_timeout = htons(fs->idle_timeout);
- ofs->hard_timeout = htons(fs->hard_timeout);
- ofs->flags = (raw == OFPRAW_OFPST13_FLOW_REPLY) ? htons(fs->flags) : 0;
- memset(ofs->pad2, 0, sizeof ofs->pad2);
- ofs->cookie = fs->cookie;
- ofs->packet_count = htonll(unknown_to_zero(fs->packet_count));
- ofs->byte_count = htonll(unknown_to_zero(fs->byte_count));
- } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) {
- struct ofp10_flow_stats *ofs;
+ qgcr11 = reply->l3;
+ port = qgcr11->port;
- ofpbuf_put_uninit(reply, sizeof *ofs);
- ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
+ opq12 = ofpbuf_put_zeros(reply, sizeof *opq12);
+ opq12->port = port;
+ opq12->queue_id = htonl(oqc->queue_id);
+ len_ofs = (char *) &opq12->len - (char *) reply->data;
+ }
- ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
- ofs->length = htons(reply->size - start_ofs);
- ofs->table_id = fs->table_id;
- ofs->pad = 0;
- ofputil_match_to_ofp10_match(&fs->match, &ofs->match);
- ofs->duration_sec = htonl(fs->duration_sec);
- ofs->duration_nsec = htonl(fs->duration_nsec);
- ofs->priority = htons(fs->priority);
- ofs->idle_timeout = htons(fs->idle_timeout);
- ofs->hard_timeout = htons(fs->hard_timeout);
- memset(ofs->pad2, 0, sizeof ofs->pad2);
- put_32aligned_be64(&ofs->cookie, fs->cookie);
- put_32aligned_be64(&ofs->packet_count,
- htonll(unknown_to_zero(fs->packet_count)));
- put_32aligned_be64(&ofs->byte_count,
- htonll(unknown_to_zero(fs->byte_count)));
- } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
- struct nx_flow_stats *nfs;
- int match_len;
+ put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate);
+ put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate);
- ofpbuf_put_uninit(reply, sizeof *nfs);
- match_len = nx_put_match(reply, &fs->match, 0, 0);
- ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
+ len = ofpbuf_at(reply, len_ofs, sizeof *len);
+ *len = htons(reply->size - start_ofs);
+}
- nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs);
- nfs->length = htons(reply->size - start_ofs);
- nfs->table_id = fs->table_id;
- nfs->pad = 0;
- nfs->duration_sec = htonl(fs->duration_sec);
- nfs->duration_nsec = htonl(fs->duration_nsec);
- nfs->priority = htons(fs->priority);
- nfs->idle_timeout = htons(fs->idle_timeout);
- nfs->hard_timeout = htons(fs->hard_timeout);
- nfs->idle_age = htons(fs->idle_age < 0 ? 0
- : fs->idle_age < UINT16_MAX ? fs->idle_age + 1
- : UINT16_MAX);
- nfs->hard_age = htons(fs->hard_age < 0 ? 0
- : fs->hard_age < UINT16_MAX ? fs->hard_age + 1
- : UINT16_MAX);
- nfs->match_len = htons(match_len);
- nfs->cookie = fs->cookie;
- nfs->packet_count = htonll(fs->packet_count);
- nfs->byte_count = htonll(fs->byte_count);
- } else {
- NOT_REACHED();
+/* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and
+ * stores in '*port' the port that the reply is about. The caller may call
+ * ofputil_pull_queue_get_config_reply() to obtain information about individual
+ * queues included in the reply. Returns 0 if successful, otherwise an
+ * ofperr.*/
+enum ofperr
+ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port)
+{
+ const struct ofp10_queue_get_config_reply *qgcr10;
+ const struct ofp11_queue_get_config_reply *qgcr11;
+ enum ofpraw raw;
+
+ raw = ofpraw_pull_assert(reply);
+ switch ((int) raw) {
+ case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY:
+ qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10);
+ *port = u16_to_ofp(ntohs(qgcr10->port));
+ return 0;
+
+ case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY:
+ qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11);
+ return ofputil_port_from_ofp11(qgcr11->port, port);
}
- ofpmp_postappend(replies, start_ofs);
+ NOT_REACHED();
}
-/* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or
- * NXST_AGGREGATE reply matching 'request', and returns the message. */
-struct ofpbuf *
-ofputil_encode_aggregate_stats_reply(
- const struct ofputil_aggregate_stats *stats,
- const struct ofp_header *request)
+static enum ofperr
+parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate)
{
- struct ofp_aggregate_stats_reply *asr;
- uint64_t packet_count;
- uint64_t byte_count;
- struct ofpbuf *msg;
- enum ofpraw raw;
+ const struct ofp_queue_prop_rate *oqpr;
- ofpraw_decode(&raw, request);
- if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) {
- packet_count = unknown_to_zero(stats->packet_count);
- byte_count = unknown_to_zero(stats->byte_count);
+ if (hdr->len == htons(sizeof *oqpr)) {
+ oqpr = (const struct ofp_queue_prop_rate *) hdr;
+ *rate = ntohs(oqpr->rate);
+ return 0;
} else {
- packet_count = stats->packet_count;
- byte_count = stats->byte_count;
+ return OFPERR_OFPBRC_BAD_LEN;
}
-
- msg = ofpraw_alloc_stats_reply(request, 0);
- asr = ofpbuf_put_zeros(msg, sizeof *asr);
- put_32aligned_be64(&asr->packet_count, htonll(packet_count));
- put_32aligned_be64(&asr->byte_count, htonll(byte_count));
- asr->flow_count = htonl(stats->flow_count);
-
- return msg;
}
-enum ofperr
-ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats,
- const struct ofp_header *reply)
+/* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in
+ * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply()
+ * must already have pulled off the main header.
+ *
+ * This function returns EOF if the last queue has already been decoded, 0 if a
+ * queue was successfully decoded into '*queue', or an ofperr if there was a
+ * problem decoding 'reply'. */
+int
+ofputil_pull_queue_get_config_reply(struct ofpbuf *reply,
+ struct ofputil_queue_config *queue)
{
- struct ofp_aggregate_stats_reply *asr;
- struct ofpbuf msg;
+ const struct ofp_header *oh;
+ unsigned int opq_len;
+ unsigned int len;
- ofpbuf_use_const(&msg, reply, ntohs(reply->length));
- ofpraw_pull_assert(&msg);
+ if (!reply->size) {
+ return EOF;
+ }
- asr = msg.l3;
- stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count));
- stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count));
- stats->flow_count = ntohl(asr->flow_count);
+ queue->min_rate = UINT16_MAX;
+ queue->max_rate = UINT16_MAX;
+
+ oh = reply->l2;
+ if (oh->version < OFP12_VERSION) {
+ const struct ofp10_packet_queue *opq10;
+
+ opq10 = ofpbuf_try_pull(reply, sizeof *opq10);
+ if (!opq10) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+ queue->queue_id = ntohl(opq10->queue_id);
+ len = ntohs(opq10->len);
+ opq_len = sizeof *opq10;
+ } else {
+ const struct ofp12_packet_queue *opq12;
+
+ opq12 = ofpbuf_try_pull(reply, sizeof *opq12);
+ if (!opq12) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+ queue->queue_id = ntohl(opq12->queue_id);
+ len = ntohs(opq12->len);
+ opq_len = sizeof *opq12;
+ }
+
+ if (len < opq_len || len > reply->size + opq_len || len % 8) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+ len -= opq_len;
+
+ while (len > 0) {
+ const struct ofp_queue_prop_header *hdr;
+ unsigned int property;
+ unsigned int prop_len;
+ enum ofperr error = 0;
+
+ hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr);
+ prop_len = ntohs(hdr->len);
+ if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ property = ntohs(hdr->property);
+ switch (property) {
+ case OFPQT_MIN_RATE:
+ error = parse_queue_rate(hdr, &queue->min_rate);
+ break;
+
+ case OFPQT_MAX_RATE:
+ error = parse_queue_rate(hdr, &queue->max_rate);
+ break;
+
+ default:
+ VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property);
+ break;
+ }
+ if (error) {
+ return error;
+ }
+ ofpbuf_pull(reply, prop_len);
+ len -= prop_len;
+ }
return 0;
}
-/* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an
- * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise
- * an OpenFlow error code. */
+/* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE
+ * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if
+ * successful, otherwise an OpenFlow error code. */
enum ofperr
-ofputil_decode_flow_removed(struct ofputil_flow_removed *fr,
- const struct ofp_header *oh)
+ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr,
+ const struct ofp_header *oh)
{
enum ofpraw raw;
struct ofpbuf b;
ofpbuf_use_const(&b, oh, ntohs(oh->length));
raw = ofpraw_pull_assert(&b);
- if (raw == OFPRAW_OFPT11_FLOW_REMOVED) {
- const struct ofp12_flow_removed *ofr;
- enum ofperr error;
-
- ofr = ofpbuf_pull(&b, sizeof *ofr);
+ switch ((int) raw) {
+ case OFPRAW_OFPST10_FLOW_REQUEST:
+ return ofputil_decode_ofpst10_flow_request(fsr, b.data, false);
- error = ofputil_pull_ofp11_match(&b, &fr->match, NULL);
- if (error) {
- return error;
- }
+ case OFPRAW_OFPST10_AGGREGATE_REQUEST:
+ return ofputil_decode_ofpst10_flow_request(fsr, b.data, true);
- fr->priority = ntohs(ofr->priority);
- fr->cookie = ofr->cookie;
- fr->reason = ofr->reason;
- fr->table_id = ofr->table_id;
- fr->duration_sec = ntohl(ofr->duration_sec);
- fr->duration_nsec = ntohl(ofr->duration_nsec);
- fr->idle_timeout = ntohs(ofr->idle_timeout);
- fr->hard_timeout = ntohs(ofr->hard_timeout);
- fr->packet_count = ntohll(ofr->packet_count);
- fr->byte_count = ntohll(ofr->byte_count);
- } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) {
- const struct ofp10_flow_removed *ofr;
+ case OFPRAW_OFPST11_FLOW_REQUEST:
+ return ofputil_decode_ofpst11_flow_request(fsr, &b, false);
- ofr = ofpbuf_pull(&b, sizeof *ofr);
+ case OFPRAW_OFPST11_AGGREGATE_REQUEST:
+ return ofputil_decode_ofpst11_flow_request(fsr, &b, true);
- ofputil_match_from_ofp10_match(&ofr->match, &fr->match);
- fr->priority = ntohs(ofr->priority);
- fr->cookie = ofr->cookie;
- fr->reason = ofr->reason;
- fr->table_id = 255;
- fr->duration_sec = ntohl(ofr->duration_sec);
- fr->duration_nsec = ntohl(ofr->duration_nsec);
- fr->idle_timeout = ntohs(ofr->idle_timeout);
- fr->hard_timeout = 0;
- fr->packet_count = ntohll(ofr->packet_count);
- fr->byte_count = ntohll(ofr->byte_count);
- } else if (raw == OFPRAW_NXT_FLOW_REMOVED) {
- struct nx_flow_removed *nfr;
- enum ofperr error;
+ case OFPRAW_NXST_FLOW_REQUEST:
+ return ofputil_decode_nxst_flow_request(fsr, &b, false);
- nfr = ofpbuf_pull(&b, sizeof *nfr);
- error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match,
- NULL, NULL);
- if (error) {
- return error;
- }
- if (b.size) {
- return OFPERR_OFPBRC_BAD_LEN;
- }
+ case OFPRAW_NXST_AGGREGATE_REQUEST:
+ return ofputil_decode_nxst_flow_request(fsr, &b, true);
- fr->priority = ntohs(nfr->priority);
- fr->cookie = nfr->cookie;
- fr->reason = nfr->reason;
- fr->table_id = 255;
- fr->duration_sec = ntohl(nfr->duration_sec);
- fr->duration_nsec = ntohl(nfr->duration_nsec);
- fr->idle_timeout = ntohs(nfr->idle_timeout);
- fr->hard_timeout = 0;
- fr->packet_count = ntohll(nfr->packet_count);
- fr->byte_count = ntohll(nfr->byte_count);
- } else {
+ default:
+ /* Hey, the caller lied. */
NOT_REACHED();
}
-
- return 0;
}
-/* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or
- * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the
- * message. */
+/* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW,
+ * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to
+ * 'protocol', and returns the message. */
struct ofpbuf *
-ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr,
- enum ofputil_protocol protocol)
+ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr,
+ enum ofputil_protocol protocol)
{
struct ofpbuf *msg;
+ enum ofpraw raw;
switch (protocol) {
+ case OFPUTIL_P_OF11_STD:
case OFPUTIL_P_OF12_OXM:
case OFPUTIL_P_OF13_OXM: {
- struct ofp12_flow_removed *ofr;
+ struct ofp11_flow_stats_request *ofsr;
- msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED,
- ofputil_protocol_to_ofp_version(protocol),
- htonl(0), NXM_TYPICAL_LEN);
- ofr = ofpbuf_put_zeros(msg, sizeof *ofr);
- ofr->cookie = fr->cookie;
- ofr->priority = htons(fr->priority);
- ofr->reason = fr->reason;
- ofr->table_id = fr->table_id;
- ofr->duration_sec = htonl(fr->duration_sec);
- ofr->duration_nsec = htonl(fr->duration_nsec);
- ofr->idle_timeout = htons(fr->idle_timeout);
- ofr->hard_timeout = htons(fr->hard_timeout);
- ofr->packet_count = htonll(fr->packet_count);
- ofr->byte_count = htonll(fr->byte_count);
- oxm_put_match(msg, &fr->match);
+ raw = (fsr->aggregate
+ ? OFPRAW_OFPST11_AGGREGATE_REQUEST
+ : OFPRAW_OFPST11_FLOW_REQUEST);
+ msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol),
+ ofputil_match_typical_len(protocol));
+ ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
+ ofsr->table_id = fsr->table_id;
+ ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port);
+ ofsr->out_group = htonl(fsr->out_group);
+ ofsr->cookie = fsr->cookie;
+ ofsr->cookie_mask = fsr->cookie_mask;
+ ofputil_put_ofp11_match(msg, &fsr->match, protocol);
break;
}
case OFPUTIL_P_OF10_STD:
case OFPUTIL_P_OF10_STD_TID: {
- struct ofp10_flow_removed *ofr;
+ struct ofp10_flow_stats_request *ofsr;
- msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION,
- htonl(0), 0);
- ofr = ofpbuf_put_zeros(msg, sizeof *ofr);
- ofputil_match_to_ofp10_match(&fr->match, &ofr->match);
- ofr->cookie = fr->cookie;
- ofr->priority = htons(fr->priority);
- ofr->reason = fr->reason;
- ofr->duration_sec = htonl(fr->duration_sec);
- ofr->duration_nsec = htonl(fr->duration_nsec);
- ofr->idle_timeout = htons(fr->idle_timeout);
- ofr->packet_count = htonll(unknown_to_zero(fr->packet_count));
- ofr->byte_count = htonll(unknown_to_zero(fr->byte_count));
- break;
- }
+ raw = (fsr->aggregate
+ ? OFPRAW_OFPST10_AGGREGATE_REQUEST
+ : OFPRAW_OFPST10_FLOW_REQUEST);
+ msg = ofpraw_alloc(raw, OFP10_VERSION, 0);
+ ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
+ ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match);
+ ofsr->table_id = fsr->table_id;
+ ofsr->out_port = htons(ofp_to_u16(fsr->out_port));
+ break;
+ }
case OFPUTIL_P_OF10_NXM:
case OFPUTIL_P_OF10_NXM_TID: {
- struct nx_flow_removed *nfr;
+ struct nx_flow_stats_request *nfsr;
int match_len;
- msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION,
- htonl(0), NXM_TYPICAL_LEN);
- nfr = ofpbuf_put_zeros(msg, sizeof *nfr);
- match_len = nx_put_match(msg, &fr->match, 0, 0);
+ raw = (fsr->aggregate
+ ? OFPRAW_NXST_AGGREGATE_REQUEST
+ : OFPRAW_NXST_FLOW_REQUEST);
+ msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN);
+ ofpbuf_put_zeros(msg, sizeof *nfsr);
+ match_len = nx_put_match(msg, &fsr->match,
+ fsr->cookie, fsr->cookie_mask);
- nfr = msg->l3;
- nfr->cookie = fr->cookie;
- nfr->priority = htons(fr->priority);
- nfr->reason = fr->reason;
- nfr->duration_sec = htonl(fr->duration_sec);
- nfr->duration_nsec = htonl(fr->duration_nsec);
- nfr->idle_timeout = htons(fr->idle_timeout);
- nfr->match_len = htons(match_len);
- nfr->packet_count = htonll(fr->packet_count);
- nfr->byte_count = htonll(fr->byte_count);
+ nfsr = msg->l3;
+ nfsr->out_port = htons(ofp_to_u16(fsr->out_port));
+ nfsr->match_len = htons(match_len);
+ nfsr->table_id = fsr->table_id;
break;
}
return msg;
}
-static void
-ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin,
- struct match *match, struct ofpbuf *b)
-{
- pin->packet = b->data;
- pin->packet_len = b->size;
-
- pin->fmd.in_port = match->flow.in_port;
- pin->fmd.tun_id = match->flow.tunnel.tun_id;
- pin->fmd.metadata = match->flow.metadata;
- memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs);
-}
-
-enum ofperr
-ofputil_decode_packet_in(struct ofputil_packet_in *pin,
- const struct ofp_header *oh)
+/* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract
+ * ofputil_flow_stats in 'fs'.
+ *
+ * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single
+ * OpenFlow message. Calling this function multiple times for a single 'msg'
+ * iterates through the replies. The caller must initially leave 'msg''s layer
+ * pointers null and not modify them between calls.
+ *
+ * Most switches don't send the values needed to populate fs->idle_age and
+ * fs->hard_age, so those members will usually be set to 0. If the switch from
+ * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass
+ * 'flow_age_extension' as true so that the contents of 'msg' determine the
+ * 'idle_age' and 'hard_age' members in 'fs'.
+ *
+ * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats
+ * reply's actions. The caller must initialize 'ofpacts' and retains ownership
+ * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer.
+ *
+ * Returns 0 if successful, EOF if no replies were left in this 'msg',
+ * otherwise a positive errno value. */
+int
+ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
+ struct ofpbuf *msg,
+ bool flow_age_extension,
+ struct ofpbuf *ofpacts)
{
+ const struct ofp_header *oh;
+ enum ofperr error;
enum ofpraw raw;
- struct ofpbuf b;
- memset(pin, 0, sizeof *pin);
+ error = (msg->l2
+ ? ofpraw_decode(&raw, msg->l2)
+ : ofpraw_pull(&raw, msg));
+ if (error) {
+ return error;
+ }
+ oh = msg->l2;
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
- raw = ofpraw_pull_assert(&b);
- if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) {
- const struct ofp13_packet_in *opi;
- struct match match;
- int error;
- size_t packet_in_size;
+ if (!msg->size) {
+ return EOF;
+ } else if (raw == OFPRAW_OFPST11_FLOW_REPLY
+ || raw == OFPRAW_OFPST13_FLOW_REPLY) {
+ const struct ofp11_flow_stats *ofs;
+ size_t length;
+ uint16_t padded_match_len;
- if (raw == OFPRAW_OFPT12_PACKET_IN) {
- packet_in_size = sizeof (struct ofp12_packet_in);
- } else {
- packet_in_size = sizeof (struct ofp13_packet_in);
+ ofs = ofpbuf_try_pull(msg, sizeof *ofs);
+ if (!ofs) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIuSIZE" leftover "
+ "bytes at end", msg->size);
+ return EINVAL;
}
- opi = ofpbuf_pull(&b, packet_in_size);
- error = oxm_pull_match_loose(&b, &match);
- if (error) {
- return error;
+ length = ntohs(ofs->length);
+ if (length < sizeof *ofs) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
+ "length %"PRIuSIZE, length);
+ return EINVAL;
}
- if (!ofpbuf_try_pull(&b, 2)) {
- return OFPERR_OFPBRC_BAD_LEN;
+ if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match");
+ return EINVAL;
}
- pin->reason = opi->pi.reason;
- pin->table_id = opi->pi.table_id;
- pin->buffer_id = ntohl(opi->pi.buffer_id);
- pin->total_len = ntohs(opi->pi.total_len);
+ if (ofpacts_pull_openflow_instructions(msg, length - sizeof *ofs -
+ padded_match_len, oh->version,
+ ofpacts)) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions");
+ return EINVAL;
+ }
- if (raw == OFPRAW_OFPT13_PACKET_IN) {
- pin->cookie = opi->cookie;
+ fs->priority = ntohs(ofs->priority);
+ fs->table_id = ofs->table_id;
+ fs->duration_sec = ntohl(ofs->duration_sec);
+ fs->duration_nsec = ntohl(ofs->duration_nsec);
+ fs->idle_timeout = ntohs(ofs->idle_timeout);
+ fs->hard_timeout = ntohs(ofs->hard_timeout);
+ if (raw == OFPRAW_OFPST13_FLOW_REPLY) {
+ error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version,
+ &fs->flags);
+ if (error) {
+ return error;
+ }
+ } else {
+ fs->flags = 0;
}
+ fs->idle_age = -1;
+ fs->hard_age = -1;
+ fs->cookie = ofs->cookie;
+ fs->packet_count = ntohll(ofs->packet_count);
+ fs->byte_count = ntohll(ofs->byte_count);
+ } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) {
+ const struct ofp10_flow_stats *ofs;
+ size_t length;
- ofputil_decode_packet_in_finish(pin, &match, &b);
- } else if (raw == OFPRAW_OFPT10_PACKET_IN) {
- const struct ofp10_packet_in *opi;
+ ofs = ofpbuf_try_pull(msg, sizeof *ofs);
+ if (!ofs) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIuSIZE" leftover "
+ "bytes at end", msg->size);
+ return EINVAL;
+ }
- opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data));
+ length = ntohs(ofs->length);
+ if (length < sizeof *ofs) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
+ "length %"PRIuSIZE, length);
+ return EINVAL;
+ }
- pin->packet = opi->data;
- pin->packet_len = b.size;
+ if (ofpacts_pull_openflow_actions(msg, length - sizeof *ofs,
+ oh->version, ofpacts)) {
+ return EINVAL;
+ }
- pin->fmd.in_port = ntohs(opi->in_port);
- pin->reason = opi->reason;
- pin->buffer_id = ntohl(opi->buffer_id);
- pin->total_len = ntohs(opi->total_len);
- } else if (raw == OFPRAW_NXT_PACKET_IN) {
- const struct nx_packet_in *npi;
- struct match match;
- int error;
+ fs->cookie = get_32aligned_be64(&ofs->cookie);
+ ofputil_match_from_ofp10_match(&ofs->match, &fs->match);
+ fs->priority = ntohs(ofs->priority);
+ fs->table_id = ofs->table_id;
+ fs->duration_sec = ntohl(ofs->duration_sec);
+ fs->duration_nsec = ntohl(ofs->duration_nsec);
+ fs->idle_timeout = ntohs(ofs->idle_timeout);
+ fs->hard_timeout = ntohs(ofs->hard_timeout);
+ fs->idle_age = -1;
+ fs->hard_age = -1;
+ fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count));
+ fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count));
+ fs->flags = 0;
+ } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
+ const struct nx_flow_stats *nfs;
+ size_t match_len, actions_len, length;
- npi = ofpbuf_pull(&b, sizeof *npi);
- error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL,
- NULL);
- if (error) {
- return error;
+ nfs = ofpbuf_try_pull(msg, sizeof *nfs);
+ if (!nfs) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIuSIZE" leftover "
+ "bytes at end", msg->size);
+ return EINVAL;
}
- if (!ofpbuf_try_pull(&b, 2)) {
- return OFPERR_OFPBRC_BAD_LEN;
+ length = ntohs(nfs->length);
+ match_len = ntohs(nfs->match_len);
+ if (length < sizeof *nfs + ROUND_UP(match_len, 8)) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" "
+ "claims invalid length %"PRIuSIZE, match_len, length);
+ return EINVAL;
+ }
+ if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) {
+ return EINVAL;
}
- pin->reason = npi->reason;
- pin->table_id = npi->table_id;
- pin->cookie = npi->cookie;
-
- pin->buffer_id = ntohl(npi->buffer_id);
- pin->total_len = ntohs(npi->total_len);
+ actions_len = length - sizeof *nfs - ROUND_UP(match_len, 8);
+ if (ofpacts_pull_openflow_actions(msg, actions_len, oh->version,
+ ofpacts)) {
+ return EINVAL;
+ }
- ofputil_decode_packet_in_finish(pin, &match, &b);
+ fs->cookie = nfs->cookie;
+ fs->table_id = nfs->table_id;
+ fs->duration_sec = ntohl(nfs->duration_sec);
+ fs->duration_nsec = ntohl(nfs->duration_nsec);
+ fs->priority = ntohs(nfs->priority);
+ fs->idle_timeout = ntohs(nfs->idle_timeout);
+ fs->hard_timeout = ntohs(nfs->hard_timeout);
+ fs->idle_age = -1;
+ fs->hard_age = -1;
+ if (flow_age_extension) {
+ if (nfs->idle_age) {
+ fs->idle_age = ntohs(nfs->idle_age) - 1;
+ }
+ if (nfs->hard_age) {
+ fs->hard_age = ntohs(nfs->hard_age) - 1;
+ }
+ }
+ fs->packet_count = ntohll(nfs->packet_count);
+ fs->byte_count = ntohll(nfs->byte_count);
+ fs->flags = 0;
} else {
NOT_REACHED();
}
+ fs->ofpacts = ofpacts->data;
+ fs->ofpacts_len = ofpacts->size;
+
return 0;
}
-static void
-ofputil_packet_in_to_match(const struct ofputil_packet_in *pin,
- struct match *match)
+/* Returns 'count' unchanged except that UINT64_MAX becomes 0.
+ *
+ * We use this in situations where OVS internally uses UINT64_MAX to mean
+ * "value unknown" but OpenFlow 1.0 does not define any unknown value. */
+static uint64_t
+unknown_to_zero(uint64_t count)
{
- int i;
+ return count != UINT64_MAX ? count : 0;
+}
- match_init_catchall(match);
- if (pin->fmd.tun_id != htonll(0)) {
- match_set_tun_id(match, pin->fmd.tun_id);
- }
- if (pin->fmd.metadata != htonll(0)) {
- match_set_metadata(match, pin->fmd.metadata);
- }
-
- for (i = 0; i < FLOW_N_REGS; i++) {
- if (pin->fmd.regs[i]) {
- match_set_reg(match, i, pin->fmd.regs[i]);
- }
- }
-
- match_set_in_port(match, pin->fmd.in_port);
-}
-
-/* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message
- * in the format specified by 'packet_in_format'. */
-struct ofpbuf *
-ofputil_encode_packet_in(const struct ofputil_packet_in *pin,
- enum ofputil_protocol protocol,
- enum nx_packet_in_format packet_in_format)
+/* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to
+ * those already present in the list of ofpbufs in 'replies'. 'replies' should
+ * have been initialized with ofpmp_init(). */
+void
+ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs,
+ struct list *replies)
{
- size_t send_len = MIN(pin->send_len, pin->packet_len);
- struct ofpbuf *packet;
-
- /* Add OFPT_PACKET_IN. */
- if (protocol == OFPUTIL_P_OF13_OXM || protocol == OFPUTIL_P_OF12_OXM) {
- struct ofp13_packet_in *opi;
- struct match match;
- enum ofpraw packet_in_raw;
- enum ofp_version packet_in_version;
- size_t packet_in_size;
-
- if (protocol == OFPUTIL_P_OF12_OXM) {
- packet_in_raw = OFPRAW_OFPT12_PACKET_IN;
- packet_in_version = OFP12_VERSION;
- packet_in_size = sizeof (struct ofp12_packet_in);
- } else {
- packet_in_raw = OFPRAW_OFPT13_PACKET_IN;
- packet_in_version = OFP13_VERSION;
- packet_in_size = sizeof (struct ofp13_packet_in);
- }
+ struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
+ size_t start_ofs = reply->size;
+ enum ofpraw raw;
+ enum ofp_version version = ((struct ofp_header *)reply->data)->version;
- ofputil_packet_in_to_match(pin, &match);
+ ofpraw_decode_partial(&raw, reply->data, reply->size);
+ if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) {
+ struct ofp11_flow_stats *ofs;
- /* The final argument is just an estimate of the space required. */
- packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version,
- htonl(0), (sizeof(struct flow_metadata) * 2
- + 2 + send_len));
- ofpbuf_put_zeros(packet, packet_in_size);
- oxm_put_match(packet, &match);
- ofpbuf_put_zeros(packet, 2);
- ofpbuf_put(packet, pin->packet, send_len);
+ ofpbuf_put_uninit(reply, sizeof *ofs);
+ oxm_put_match(reply, &fs->match);
+ ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply,
+ version);
- opi = packet->l3;
- opi->pi.buffer_id = htonl(pin->buffer_id);
- opi->pi.total_len = htons(pin->total_len);
- opi->pi.reason = pin->reason;
- opi->pi.table_id = pin->table_id;
- if (protocol == OFPUTIL_P_OF13_OXM) {
- opi->cookie = pin->cookie;
+ ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
+ ofs->length = htons(reply->size - start_ofs);
+ ofs->table_id = fs->table_id;
+ ofs->pad = 0;
+ ofs->duration_sec = htonl(fs->duration_sec);
+ ofs->duration_nsec = htonl(fs->duration_nsec);
+ ofs->priority = htons(fs->priority);
+ ofs->idle_timeout = htons(fs->idle_timeout);
+ ofs->hard_timeout = htons(fs->hard_timeout);
+ if (raw == OFPRAW_OFPST13_FLOW_REPLY) {
+ ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version);
+ } else {
+ ofs->flags = 0;
}
- } else if (packet_in_format == NXPIF_OPENFLOW10) {
- struct ofp10_packet_in *opi;
-
- packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
- htonl(0), send_len);
- opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data));
- opi->total_len = htons(pin->total_len);
- opi->in_port = htons(pin->fmd.in_port);
- opi->reason = pin->reason;
- opi->buffer_id = htonl(pin->buffer_id);
-
- ofpbuf_put(packet, pin->packet, send_len);
- } else if (packet_in_format == NXPIF_NXM) {
- struct nx_packet_in *npi;
- struct match match;
- size_t match_len;
-
- ofputil_packet_in_to_match(pin, &match);
+ memset(ofs->pad2, 0, sizeof ofs->pad2);
+ ofs->cookie = fs->cookie;
+ ofs->packet_count = htonll(unknown_to_zero(fs->packet_count));
+ ofs->byte_count = htonll(unknown_to_zero(fs->byte_count));
+ } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) {
+ struct ofp10_flow_stats *ofs;
- /* The final argument is just an estimate of the space required. */
- packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
- htonl(0), (sizeof(struct flow_metadata) * 2
- + 2 + send_len));
- ofpbuf_put_zeros(packet, sizeof *npi);
- match_len = nx_put_match(packet, &match, 0, 0);
- ofpbuf_put_zeros(packet, 2);
- ofpbuf_put(packet, pin->packet, send_len);
+ ofpbuf_put_uninit(reply, sizeof *ofs);
+ ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply,
+ version);
+ ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
+ ofs->length = htons(reply->size - start_ofs);
+ ofs->table_id = fs->table_id;
+ ofs->pad = 0;
+ ofputil_match_to_ofp10_match(&fs->match, &ofs->match);
+ ofs->duration_sec = htonl(fs->duration_sec);
+ ofs->duration_nsec = htonl(fs->duration_nsec);
+ ofs->priority = htons(fs->priority);
+ ofs->idle_timeout = htons(fs->idle_timeout);
+ ofs->hard_timeout = htons(fs->hard_timeout);
+ memset(ofs->pad2, 0, sizeof ofs->pad2);
+ put_32aligned_be64(&ofs->cookie, fs->cookie);
+ put_32aligned_be64(&ofs->packet_count,
+ htonll(unknown_to_zero(fs->packet_count)));
+ put_32aligned_be64(&ofs->byte_count,
+ htonll(unknown_to_zero(fs->byte_count)));
+ } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
+ struct nx_flow_stats *nfs;
+ int match_len;
- npi = packet->l3;
- npi->buffer_id = htonl(pin->buffer_id);
- npi->total_len = htons(pin->total_len);
- npi->reason = pin->reason;
- npi->table_id = pin->table_id;
- npi->cookie = pin->cookie;
- npi->match_len = htons(match_len);
+ ofpbuf_put_uninit(reply, sizeof *nfs);
+ match_len = nx_put_match(reply, &fs->match, 0, 0);
+ ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply,
+ version);
+ nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs);
+ nfs->length = htons(reply->size - start_ofs);
+ nfs->table_id = fs->table_id;
+ nfs->pad = 0;
+ nfs->duration_sec = htonl(fs->duration_sec);
+ nfs->duration_nsec = htonl(fs->duration_nsec);
+ nfs->priority = htons(fs->priority);
+ nfs->idle_timeout = htons(fs->idle_timeout);
+ nfs->hard_timeout = htons(fs->hard_timeout);
+ nfs->idle_age = htons(fs->idle_age < 0 ? 0
+ : fs->idle_age < UINT16_MAX ? fs->idle_age + 1
+ : UINT16_MAX);
+ nfs->hard_age = htons(fs->hard_age < 0 ? 0
+ : fs->hard_age < UINT16_MAX ? fs->hard_age + 1
+ : UINT16_MAX);
+ nfs->match_len = htons(match_len);
+ nfs->cookie = fs->cookie;
+ nfs->packet_count = htonll(fs->packet_count);
+ nfs->byte_count = htonll(fs->byte_count);
} else {
NOT_REACHED();
}
- ofpmsg_update_length(packet);
- return packet;
+ ofpmp_postappend(replies, start_ofs);
}
-const char *
-ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason)
+/* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or
+ * NXST_AGGREGATE reply matching 'request', and returns the message. */
+struct ofpbuf *
+ofputil_encode_aggregate_stats_reply(
+ const struct ofputil_aggregate_stats *stats,
+ const struct ofp_header *request)
{
- static char s[INT_STRLEN(int) + 1];
-
- switch (reason) {
- case OFPR_NO_MATCH:
- return "no_match";
- case OFPR_ACTION:
- return "action";
- case OFPR_INVALID_TTL:
- return "invalid_ttl";
+ struct ofp_aggregate_stats_reply *asr;
+ uint64_t packet_count;
+ uint64_t byte_count;
+ struct ofpbuf *msg;
+ enum ofpraw raw;
- case OFPR_N_REASONS:
- default:
- sprintf(s, "%d", (int) reason);
- return s;
+ ofpraw_decode(&raw, request);
+ if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) {
+ packet_count = unknown_to_zero(stats->packet_count);
+ byte_count = unknown_to_zero(stats->byte_count);
+ } else {
+ packet_count = stats->packet_count;
+ byte_count = stats->byte_count;
}
+
+ msg = ofpraw_alloc_stats_reply(request, 0);
+ asr = ofpbuf_put_zeros(msg, sizeof *asr);
+ put_32aligned_be64(&asr->packet_count, htonll(packet_count));
+ put_32aligned_be64(&asr->byte_count, htonll(byte_count));
+ asr->flow_count = htonl(stats->flow_count);
+
+ return msg;
}
-bool
-ofputil_packet_in_reason_from_string(const char *s,
- enum ofp_packet_in_reason *reason)
+enum ofperr
+ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats,
+ const struct ofp_header *reply)
{
- int i;
+ struct ofp_aggregate_stats_reply *asr;
+ struct ofpbuf msg;
- for (i = 0; i < OFPR_N_REASONS; i++) {
- if (!strcasecmp(s, ofputil_packet_in_reason_to_string(i))) {
- *reason = i;
- return true;
- }
- }
- return false;
+ ofpbuf_use_const(&msg, reply, ntohs(reply->length));
+ ofpraw_pull_assert(&msg);
+
+ asr = msg.l3;
+ stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count));
+ stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count));
+ stats->flow_count = ntohl(asr->flow_count);
+
+ return 0;
}
-/* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in
- * 'po'.
- *
- * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out
- * message's actions. The caller must initialize 'ofpacts' and retains
- * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer.
- *
- * Returns 0 if successful, otherwise an OFPERR_* value. */
+/* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an
+ * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise
+ * an OpenFlow error code. */
enum ofperr
-ofputil_decode_packet_out(struct ofputil_packet_out *po,
- const struct ofp_header *oh,
- struct ofpbuf *ofpacts)
+ofputil_decode_flow_removed(struct ofputil_flow_removed *fr,
+ const struct ofp_header *oh)
{
enum ofpraw raw;
struct ofpbuf b;
ofpbuf_use_const(&b, oh, ntohs(oh->length));
raw = ofpraw_pull_assert(&b);
-
- if (raw == OFPRAW_OFPT11_PACKET_OUT) {
+ if (raw == OFPRAW_OFPT11_FLOW_REMOVED) {
+ const struct ofp12_flow_removed *ofr;
enum ofperr error;
- const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
- po->buffer_id = ntohl(opo->buffer_id);
- error = ofputil_port_from_ofp11(opo->in_port, &po->in_port);
- if (error) {
- return error;
- }
+ ofr = ofpbuf_pull(&b, sizeof *ofr);
- error = ofpacts_pull_openflow11_actions(&b, ntohs(opo->actions_len),
- ofpacts);
+ error = ofputil_pull_ofp11_match(&b, &fr->match, NULL);
if (error) {
return error;
}
- } else if (raw == OFPRAW_OFPT10_PACKET_OUT) {
- enum ofperr error;
- const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
- po->buffer_id = ntohl(opo->buffer_id);
- po->in_port = ntohs(opo->in_port);
+ fr->priority = ntohs(ofr->priority);
+ fr->cookie = ofr->cookie;
+ fr->reason = ofr->reason;
+ fr->table_id = ofr->table_id;
+ fr->duration_sec = ntohl(ofr->duration_sec);
+ fr->duration_nsec = ntohl(ofr->duration_nsec);
+ fr->idle_timeout = ntohs(ofr->idle_timeout);
+ fr->hard_timeout = ntohs(ofr->hard_timeout);
+ fr->packet_count = ntohll(ofr->packet_count);
+ fr->byte_count = ntohll(ofr->byte_count);
+ } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) {
+ const struct ofp10_flow_removed *ofr;
- error = ofpacts_pull_openflow10(&b, ntohs(opo->actions_len), ofpacts);
+ ofr = ofpbuf_pull(&b, sizeof *ofr);
+
+ ofputil_match_from_ofp10_match(&ofr->match, &fr->match);
+ fr->priority = ntohs(ofr->priority);
+ fr->cookie = ofr->cookie;
+ fr->reason = ofr->reason;
+ fr->table_id = 255;
+ fr->duration_sec = ntohl(ofr->duration_sec);
+ fr->duration_nsec = ntohl(ofr->duration_nsec);
+ fr->idle_timeout = ntohs(ofr->idle_timeout);
+ fr->hard_timeout = 0;
+ fr->packet_count = ntohll(ofr->packet_count);
+ fr->byte_count = ntohll(ofr->byte_count);
+ } else if (raw == OFPRAW_NXT_FLOW_REMOVED) {
+ struct nx_flow_removed *nfr;
+ enum ofperr error;
+
+ nfr = ofpbuf_pull(&b, sizeof *nfr);
+ error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match,
+ NULL, NULL);
if (error) {
return error;
}
+ if (b.size) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ fr->priority = ntohs(nfr->priority);
+ fr->cookie = nfr->cookie;
+ fr->reason = nfr->reason;
+ fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255;
+ fr->duration_sec = ntohl(nfr->duration_sec);
+ fr->duration_nsec = ntohl(nfr->duration_nsec);
+ fr->idle_timeout = ntohs(nfr->idle_timeout);
+ fr->hard_timeout = 0;
+ fr->packet_count = ntohll(nfr->packet_count);
+ fr->byte_count = ntohll(nfr->byte_count);
} else {
NOT_REACHED();
}
- if (po->in_port >= OFPP_MAX && po->in_port != OFPP_LOCAL
- && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16,
- po->in_port);
- return OFPERR_OFPBRC_BAD_PORT;
- }
+ return 0;
+}
- po->ofpacts = ofpacts->data;
- po->ofpacts_len = ofpacts->size;
+/* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or
+ * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the
+ * message. */
+struct ofpbuf *
+ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr,
+ enum ofputil_protocol protocol)
+{
+ struct ofpbuf *msg;
- if (po->buffer_id == UINT32_MAX) {
- po->packet = b.data;
- po->packet_len = b.size;
- } else {
- po->packet = NULL;
- po->packet_len = 0;
+ switch (protocol) {
+ case OFPUTIL_P_OF11_STD:
+ case OFPUTIL_P_OF12_OXM:
+ case OFPUTIL_P_OF13_OXM: {
+ struct ofp12_flow_removed *ofr;
+
+ msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED,
+ ofputil_protocol_to_ofp_version(protocol),
+ htonl(0),
+ ofputil_match_typical_len(protocol));
+ ofr = ofpbuf_put_zeros(msg, sizeof *ofr);
+ ofr->cookie = fr->cookie;
+ ofr->priority = htons(fr->priority);
+ ofr->reason = fr->reason;
+ ofr->table_id = fr->table_id;
+ ofr->duration_sec = htonl(fr->duration_sec);
+ ofr->duration_nsec = htonl(fr->duration_nsec);
+ ofr->idle_timeout = htons(fr->idle_timeout);
+ ofr->hard_timeout = htons(fr->hard_timeout);
+ ofr->packet_count = htonll(fr->packet_count);
+ ofr->byte_count = htonll(fr->byte_count);
+ ofputil_put_ofp11_match(msg, &fr->match, protocol);
+ break;
}
- return 0;
-}
-\f
-/* ofputil_phy_port */
+ case OFPUTIL_P_OF10_STD:
+ case OFPUTIL_P_OF10_STD_TID: {
+ struct ofp10_flow_removed *ofr;
-/* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */
-BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
-BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
-BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
-BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
-BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
-BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
-BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
+ msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION,
+ htonl(0), 0);
+ ofr = ofpbuf_put_zeros(msg, sizeof *ofr);
+ ofputil_match_to_ofp10_match(&fr->match, &ofr->match);
+ ofr->cookie = fr->cookie;
+ ofr->priority = htons(fr->priority);
+ ofr->reason = fr->reason;
+ ofr->duration_sec = htonl(fr->duration_sec);
+ ofr->duration_nsec = htonl(fr->duration_nsec);
+ ofr->idle_timeout = htons(fr->idle_timeout);
+ ofr->packet_count = htonll(unknown_to_zero(fr->packet_count));
+ ofr->byte_count = htonll(unknown_to_zero(fr->byte_count));
+ break;
+ }
-/* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */
-BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4));
-BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4));
-BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4));
-BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4));
-BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4));
+ case OFPUTIL_P_OF10_NXM:
+ case OFPUTIL_P_OF10_NXM_TID: {
+ struct nx_flow_removed *nfr;
+ int match_len;
-static enum netdev_features
-netdev_port_features_from_ofp10(ovs_be32 ofp10_)
-{
- uint32_t ofp10 = ntohl(ofp10_);
- return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4);
-}
+ msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION,
+ htonl(0), NXM_TYPICAL_LEN);
+ nfr = ofpbuf_put_zeros(msg, sizeof *nfr);
+ match_len = nx_put_match(msg, &fr->match, 0, 0);
-static ovs_be32
-netdev_port_features_to_ofp10(enum netdev_features features)
-{
- return htonl((features & 0x7f) | ((features & 0xf800) >> 4));
-}
+ nfr = msg->l3;
+ nfr->cookie = fr->cookie;
+ nfr->priority = htons(fr->priority);
+ nfr->reason = fr->reason;
+ nfr->table_id = fr->table_id + 1;
+ nfr->duration_sec = htonl(fr->duration_sec);
+ nfr->duration_nsec = htonl(fr->duration_nsec);
+ nfr->idle_timeout = htons(fr->idle_timeout);
+ nfr->match_len = htons(match_len);
+ nfr->packet_count = htonll(fr->packet_count);
+ nfr->byte_count = htonll(fr->byte_count);
+ break;
+ }
-BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
-BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
-BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
-BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
-BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
-BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
-BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
-BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */
-BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */
-BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */
-BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */
-BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */
-BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */
-BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */
-BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */
-BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */
+ default:
+ NOT_REACHED();
+ }
-static enum netdev_features
-netdev_port_features_from_ofp11(ovs_be32 ofp11)
-{
- return ntohl(ofp11) & 0xffff;
+ return msg;
}
-static ovs_be32
-netdev_port_features_to_ofp11(enum netdev_features features)
+static void
+ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin,
+ struct match *match, struct ofpbuf *b)
{
- return htonl(features & 0xffff);
+ pin->packet = b->data;
+ pin->packet_len = b->size;
+
+ pin->fmd.in_port = match->flow.in_port.ofp_port;
+ pin->fmd.tun_id = match->flow.tunnel.tun_id;
+ pin->fmd.tun_src = match->flow.tunnel.ip_src;
+ pin->fmd.tun_dst = match->flow.tunnel.ip_dst;
+ pin->fmd.metadata = match->flow.metadata;
+ memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs);
+ pin->fmd.pkt_mark = match->flow.pkt_mark;
}
-static enum ofperr
-ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp,
- const struct ofp10_phy_port *opp)
+enum ofperr
+ofputil_decode_packet_in(struct ofputil_packet_in *pin,
+ const struct ofp_header *oh)
{
- memset(pp, 0, sizeof *pp);
-
- pp->port_no = ntohs(opp->port_no);
- memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN);
- ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN);
-
- pp->config = ntohl(opp->config) & OFPPC10_ALL;
- pp->state = ntohl(opp->state) & OFPPS10_ALL;
+ enum ofpraw raw;
+ struct ofpbuf b;
- pp->curr = netdev_port_features_from_ofp10(opp->curr);
- pp->advertised = netdev_port_features_from_ofp10(opp->advertised);
- pp->supported = netdev_port_features_from_ofp10(opp->supported);
- pp->peer = netdev_port_features_from_ofp10(opp->peer);
+ memset(pin, 0, sizeof *pin);
+ pin->cookie = OVS_BE64_MAX;
- pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000;
- pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000;
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+ if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) {
+ const struct ofp13_packet_in *opi;
+ struct match match;
+ int error;
+ size_t packet_in_size;
- return 0;
-}
+ if (raw == OFPRAW_OFPT12_PACKET_IN) {
+ packet_in_size = sizeof (struct ofp12_packet_in);
+ } else {
+ packet_in_size = sizeof (struct ofp13_packet_in);
+ }
-static enum ofperr
-ofputil_decode_ofp11_port(struct ofputil_phy_port *pp,
- const struct ofp11_port *op)
-{
- enum ofperr error;
+ opi = ofpbuf_pull(&b, packet_in_size);
+ error = oxm_pull_match_loose(&b, &match);
+ if (error) {
+ return error;
+ }
- memset(pp, 0, sizeof *pp);
+ if (!ofpbuf_try_pull(&b, 2)) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
- error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
- if (error) {
- return error;
- }
- memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN);
- ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN);
+ pin->reason = opi->pi.reason;
+ pin->table_id = opi->pi.table_id;
+ pin->buffer_id = ntohl(opi->pi.buffer_id);
+ pin->total_len = ntohs(opi->pi.total_len);
- pp->config = ntohl(op->config) & OFPPC11_ALL;
- pp->state = ntohl(op->state) & OFPPC11_ALL;
+ if (raw == OFPRAW_OFPT13_PACKET_IN) {
+ pin->cookie = opi->cookie;
+ }
- pp->curr = netdev_port_features_from_ofp11(op->curr);
- pp->advertised = netdev_port_features_from_ofp11(op->advertised);
- pp->supported = netdev_port_features_from_ofp11(op->supported);
- pp->peer = netdev_port_features_from_ofp11(op->peer);
+ ofputil_decode_packet_in_finish(pin, &match, &b);
+ } else if (raw == OFPRAW_OFPT10_PACKET_IN) {
+ const struct ofp10_packet_in *opi;
- pp->curr_speed = ntohl(op->curr_speed);
- pp->max_speed = ntohl(op->max_speed);
+ opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data));
- return 0;
-}
+ pin->packet = opi->data;
+ pin->packet_len = b.size;
-static size_t
-ofputil_get_phy_port_size(enum ofp_version ofp_version)
-{
- switch (ofp_version) {
- case OFP10_VERSION:
- return sizeof(struct ofp10_phy_port);
- case OFP11_VERSION:
- case OFP12_VERSION:
- case OFP13_VERSION:
- return sizeof(struct ofp11_port);
- default:
+ pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port));
+ pin->reason = opi->reason;
+ pin->buffer_id = ntohl(opi->buffer_id);
+ pin->total_len = ntohs(opi->total_len);
+ } else if (raw == OFPRAW_NXT_PACKET_IN) {
+ const struct nx_packet_in *npi;
+ struct match match;
+ int error;
+
+ npi = ofpbuf_pull(&b, sizeof *npi);
+ error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL,
+ NULL);
+ if (error) {
+ return error;
+ }
+
+ if (!ofpbuf_try_pull(&b, 2)) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ pin->reason = npi->reason;
+ pin->table_id = npi->table_id;
+ pin->cookie = npi->cookie;
+
+ pin->buffer_id = ntohl(npi->buffer_id);
+ pin->total_len = ntohs(npi->total_len);
+
+ ofputil_decode_packet_in_finish(pin, &match, &b);
+ } else {
NOT_REACHED();
}
+
+ return 0;
}
static void
-ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp,
- struct ofp10_phy_port *opp)
+ofputil_packet_in_to_match(const struct ofputil_packet_in *pin,
+ struct match *match)
{
- memset(opp, 0, sizeof *opp);
+ int i;
- opp->port_no = htons(pp->port_no);
- memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
- ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN);
+ match_init_catchall(match);
+ if (pin->fmd.tun_id != htonll(0)) {
+ match_set_tun_id(match, pin->fmd.tun_id);
+ }
+ if (pin->fmd.tun_src != htonl(0)) {
+ match_set_tun_src(match, pin->fmd.tun_src);
+ }
+ if (pin->fmd.tun_dst != htonl(0)) {
+ match_set_tun_dst(match, pin->fmd.tun_dst);
+ }
+ if (pin->fmd.metadata != htonll(0)) {
+ match_set_metadata(match, pin->fmd.metadata);
+ }
- opp->config = htonl(pp->config & OFPPC10_ALL);
- opp->state = htonl(pp->state & OFPPS10_ALL);
+ for (i = 0; i < FLOW_N_REGS; i++) {
+ if (pin->fmd.regs[i]) {
+ match_set_reg(match, i, pin->fmd.regs[i]);
+ }
+ }
- opp->curr = netdev_port_features_to_ofp10(pp->curr);
- opp->advertised = netdev_port_features_to_ofp10(pp->advertised);
- opp->supported = netdev_port_features_to_ofp10(pp->supported);
- opp->peer = netdev_port_features_to_ofp10(pp->peer);
+ if (pin->fmd.pkt_mark != 0) {
+ match_set_pkt_mark(match, pin->fmd.pkt_mark);
+ }
+
+ match_set_in_port(match, pin->fmd.in_port);
}
-static void
-ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp,
- struct ofp11_port *op)
+/* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message
+ * in the format specified by 'packet_in_format'. */
+struct ofpbuf *
+ofputil_encode_packet_in(const struct ofputil_packet_in *pin,
+ enum ofputil_protocol protocol,
+ enum nx_packet_in_format packet_in_format)
{
- memset(op, 0, sizeof *op);
+ struct ofpbuf *packet;
- op->port_no = ofputil_port_to_ofp11(pp->port_no);
- memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
- ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN);
+ /* Add OFPT_PACKET_IN. */
+ if (protocol == OFPUTIL_P_OF13_OXM || protocol == OFPUTIL_P_OF12_OXM) {
+ struct ofp13_packet_in *opi;
+ struct match match;
+ enum ofpraw packet_in_raw;
+ enum ofp_version packet_in_version;
+ size_t packet_in_size;
- op->config = htonl(pp->config & OFPPC11_ALL);
- op->state = htonl(pp->state & OFPPS11_ALL);
+ if (protocol == OFPUTIL_P_OF12_OXM) {
+ packet_in_raw = OFPRAW_OFPT12_PACKET_IN;
+ packet_in_version = OFP12_VERSION;
+ packet_in_size = sizeof (struct ofp12_packet_in);
+ } else {
+ packet_in_raw = OFPRAW_OFPT13_PACKET_IN;
+ packet_in_version = OFP13_VERSION;
+ packet_in_size = sizeof (struct ofp13_packet_in);
+ }
- op->curr = netdev_port_features_to_ofp11(pp->curr);
- op->advertised = netdev_port_features_to_ofp11(pp->advertised);
- op->supported = netdev_port_features_to_ofp11(pp->supported);
- op->peer = netdev_port_features_to_ofp11(pp->peer);
+ ofputil_packet_in_to_match(pin, &match);
- op->curr_speed = htonl(pp->curr_speed);
- op->max_speed = htonl(pp->max_speed);
-}
+ /* The final argument is just an estimate of the space required. */
+ packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version,
+ htonl(0), (sizeof(struct flow_metadata) * 2
+ + 2 + pin->packet_len));
+ ofpbuf_put_zeros(packet, packet_in_size);
+ oxm_put_match(packet, &match);
+ ofpbuf_put_zeros(packet, 2);
+ ofpbuf_put(packet, pin->packet, pin->packet_len);
-static void
-ofputil_put_phy_port(enum ofp_version ofp_version,
- const struct ofputil_phy_port *pp, struct ofpbuf *b)
-{
- switch (ofp_version) {
- case OFP10_VERSION: {
- struct ofp10_phy_port *opp;
- if (b->size + sizeof *opp <= UINT16_MAX) {
- opp = ofpbuf_put_uninit(b, sizeof *opp);
- ofputil_encode_ofp10_phy_port(pp, opp);
+ opi = packet->l3;
+ opi->pi.buffer_id = htonl(pin->buffer_id);
+ opi->pi.total_len = htons(pin->total_len);
+ opi->pi.reason = pin->reason;
+ opi->pi.table_id = pin->table_id;
+ if (protocol == OFPUTIL_P_OF13_OXM) {
+ opi->cookie = pin->cookie;
}
- break;
- }
+ } else if (packet_in_format == NXPIF_OPENFLOW10) {
+ struct ofp10_packet_in *opi;
- case OFP11_VERSION:
- case OFP12_VERSION:
- case OFP13_VERSION: {
- struct ofp11_port *op;
- if (b->size + sizeof *op <= UINT16_MAX) {
- op = ofpbuf_put_uninit(b, sizeof *op);
- ofputil_encode_ofp11_port(pp, op);
- }
- break;
- }
+ packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
+ htonl(0), pin->packet_len);
+ opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data));
+ opi->total_len = htons(pin->total_len);
+ opi->in_port = htons(ofp_to_u16(pin->fmd.in_port));
+ opi->reason = pin->reason;
+ opi->buffer_id = htonl(pin->buffer_id);
- default:
+ ofpbuf_put(packet, pin->packet, pin->packet_len);
+ } else if (packet_in_format == NXPIF_NXM) {
+ struct nx_packet_in *npi;
+ struct match match;
+ size_t match_len;
+
+ ofputil_packet_in_to_match(pin, &match);
+
+ /* The final argument is just an estimate of the space required. */
+ packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
+ htonl(0), (sizeof(struct flow_metadata) * 2
+ + 2 + pin->packet_len));
+ ofpbuf_put_zeros(packet, sizeof *npi);
+ match_len = nx_put_match(packet, &match, 0, 0);
+ ofpbuf_put_zeros(packet, 2);
+ ofpbuf_put(packet, pin->packet, pin->packet_len);
+
+ npi = packet->l3;
+ npi->buffer_id = htonl(pin->buffer_id);
+ npi->total_len = htons(pin->total_len);
+ npi->reason = pin->reason;
+ npi->table_id = pin->table_id;
+ npi->cookie = pin->cookie;
+ npi->match_len = htons(match_len);
+ } else {
NOT_REACHED();
}
+ ofpmsg_update_length(packet);
+
+ return packet;
}
-void
-ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version,
- const struct ofputil_phy_port *pp,
- struct list *replies)
+/* Returns a string form of 'reason'. The return value is either a statically
+ * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'.
+ * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */
+const char *
+ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason,
+ char *reasonbuf, size_t bufsize)
{
- switch (ofp_version) {
- case OFP10_VERSION: {
- struct ofp10_phy_port *opp;
+ switch (reason) {
+ case OFPR_NO_MATCH:
+ return "no_match";
+ case OFPR_ACTION:
+ return "action";
+ case OFPR_INVALID_TTL:
+ return "invalid_ttl";
- opp = ofpmp_append(replies, sizeof *opp);
- ofputil_encode_ofp10_phy_port(pp, opp);
- break;
+ case OFPR_N_REASONS:
+ default:
+ snprintf(reasonbuf, bufsize, "%d", (int) reason);
+ return reasonbuf;
}
+}
- case OFP11_VERSION:
- case OFP12_VERSION:
- case OFP13_VERSION: {
- struct ofp11_port *op;
+bool
+ofputil_packet_in_reason_from_string(const char *s,
+ enum ofp_packet_in_reason *reason)
+{
+ int i;
- op = ofpmp_append(replies, sizeof *op);
- ofputil_encode_ofp11_port(pp, op);
- break;
- }
+ for (i = 0; i < OFPR_N_REASONS; i++) {
+ char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE];
+ const char *reason_s;
- default:
- NOT_REACHED();
+ reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf,
+ sizeof reasonbuf);
+ if (!strcasecmp(s, reason_s)) {
+ *reason = i;
+ return true;
+ }
}
+ return false;
}
-\f
-/* ofputil_switch_features */
-#define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
- OFPC_IP_REASM | OFPC_QUEUE_STATS)
-BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS);
-BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS);
-BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS);
-BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM);
-BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS);
-BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP);
+/* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in
+ * 'po'.
+ *
+ * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out
+ * message's actions. The caller must initialize 'ofpacts' and retains
+ * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer.
+ *
+ * Returns 0 if successful, otherwise an OFPERR_* value. */
+enum ofperr
+ofputil_decode_packet_out(struct ofputil_packet_out *po,
+ const struct ofp_header *oh,
+ struct ofpbuf *ofpacts)
+{
+ enum ofpraw raw;
+ struct ofpbuf b;
-struct ofputil_action_bit_translation {
- enum ofputil_action_bitmap ofputil_bit;
- int of_bit;
-};
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
-static const struct ofputil_action_bit_translation of10_action_bits[] = {
- { OFPUTIL_A_OUTPUT, OFPAT10_OUTPUT },
- { OFPUTIL_A_SET_VLAN_VID, OFPAT10_SET_VLAN_VID },
- { OFPUTIL_A_SET_VLAN_PCP, OFPAT10_SET_VLAN_PCP },
- { OFPUTIL_A_STRIP_VLAN, OFPAT10_STRIP_VLAN },
- { OFPUTIL_A_SET_DL_SRC, OFPAT10_SET_DL_SRC },
- { OFPUTIL_A_SET_DL_DST, OFPAT10_SET_DL_DST },
- { OFPUTIL_A_SET_NW_SRC, OFPAT10_SET_NW_SRC },
- { OFPUTIL_A_SET_NW_DST, OFPAT10_SET_NW_DST },
- { OFPUTIL_A_SET_NW_TOS, OFPAT10_SET_NW_TOS },
- { OFPUTIL_A_SET_TP_SRC, OFPAT10_SET_TP_SRC },
- { OFPUTIL_A_SET_TP_DST, OFPAT10_SET_TP_DST },
- { OFPUTIL_A_ENQUEUE, OFPAT10_ENQUEUE },
- { 0, 0 },
-};
-
-static enum ofputil_action_bitmap
-decode_action_bits(ovs_be32 of_actions,
- const struct ofputil_action_bit_translation *x)
-{
- enum ofputil_action_bitmap ofputil_actions;
+ if (raw == OFPRAW_OFPT11_PACKET_OUT) {
+ enum ofperr error;
+ const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
- ofputil_actions = 0;
- for (; x->ofputil_bit; x++) {
- if (of_actions & htonl(1u << x->of_bit)) {
- ofputil_actions |= x->ofputil_bit;
+ po->buffer_id = ntohl(opo->buffer_id);
+ error = ofputil_port_from_ofp11(opo->in_port, &po->in_port);
+ if (error) {
+ return error;
}
- }
- return ofputil_actions;
-}
-
-static uint32_t
-ofputil_capabilities_mask(enum ofp_version ofp_version)
-{
- /* Handle capabilities whose bit is unique for all Open Flow versions */
- switch (ofp_version) {
- case OFP10_VERSION:
- case OFP11_VERSION:
- return OFPC_COMMON | OFPC_ARP_MATCH_IP;
- case OFP12_VERSION:
- case OFP13_VERSION:
- return OFPC_COMMON | OFPC12_PORT_BLOCKED;
- default:
- /* Caller needs to check osf->header.version itself */
- return 0;
- }
-}
-/* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an
- * abstract representation in '*features'. Initializes '*b' to iterate over
- * the OpenFlow port structures following 'osf' with later calls to
- * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an
- * OFPERR_* value. */
-enum ofperr
-ofputil_decode_switch_features(const struct ofp_header *oh,
- struct ofputil_switch_features *features,
- struct ofpbuf *b)
-{
- const struct ofp_switch_features *osf;
- enum ofpraw raw;
-
- ofpbuf_use_const(b, oh, ntohs(oh->length));
- raw = ofpraw_pull_assert(b);
+ error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
+ oh->version, ofpacts);
+ if (error) {
+ return error;
+ }
+ } else if (raw == OFPRAW_OFPT10_PACKET_OUT) {
+ enum ofperr error;
+ const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
- osf = ofpbuf_pull(b, sizeof *osf);
- features->datapath_id = ntohll(osf->datapath_id);
- features->n_buffers = ntohl(osf->n_buffers);
- features->n_tables = osf->n_tables;
- features->auxiliary_id = 0;
+ po->buffer_id = ntohl(opo->buffer_id);
+ po->in_port = u16_to_ofp(ntohs(opo->in_port));
- features->capabilities = ntohl(osf->capabilities) &
- ofputil_capabilities_mask(oh->version);
+ error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
+ oh->version, ofpacts);
+ if (error) {
+ return error;
+ }
+ } else {
+ NOT_REACHED();
+ }
- if (b->size % ofputil_get_phy_port_size(oh->version)) {
- return OFPERR_OFPBRC_BAD_LEN;
+ if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX)
+ && po->in_port != OFPP_LOCAL
+ && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16,
+ po->in_port);
+ return OFPERR_OFPBRC_BAD_PORT;
}
- if (raw == OFPRAW_OFPT10_FEATURES_REPLY) {
- if (osf->capabilities & htonl(OFPC10_STP)) {
- features->capabilities |= OFPUTIL_C_STP;
- }
- features->actions = decode_action_bits(osf->actions, of10_action_bits);
- } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY
- || raw == OFPRAW_OFPT13_FEATURES_REPLY) {
- if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) {
- features->capabilities |= OFPUTIL_C_GROUP_STATS;
- }
- features->actions = 0;
- if (raw == OFPRAW_OFPT13_FEATURES_REPLY) {
- features->auxiliary_id = osf->auxiliary_id;
- }
+ po->ofpacts = ofpacts->data;
+ po->ofpacts_len = ofpacts->size;
+
+ if (po->buffer_id == UINT32_MAX) {
+ po->packet = b.data;
+ po->packet_len = b.size;
} else {
- return OFPERR_OFPBRC_BAD_VERSION;
+ po->packet = NULL;
+ po->packet_len = 0;
}
return 0;
}
+\f
+/* ofputil_phy_port */
-/* Returns true if the maximum number of ports are in 'oh'. */
-static bool
-max_ports_in_features(const struct ofp_header *oh)
+/* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */
+BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
+BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
+BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
+BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
+BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
+BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
+BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
+
+/* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */
+BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4));
+BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4));
+BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4));
+BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4));
+BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4));
+
+static enum netdev_features
+netdev_port_features_from_ofp10(ovs_be32 ofp10_)
{
- size_t pp_size = ofputil_get_phy_port_size(oh->version);
- return ntohs(oh->length) + pp_size > UINT16_MAX;
+ uint32_t ofp10 = ntohl(ofp10_);
+ return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4);
}
-/* Given a buffer 'b' that contains a Features Reply message, checks if
- * it contains the maximum number of ports that will fit. If so, it
- * returns true and removes the ports from the message. The caller
- * should then send an OFPST_PORT_DESC stats request to get the ports,
- * since the switch may have more ports than could be represented in the
- * Features Reply. Otherwise, returns false.
- */
-bool
-ofputil_switch_features_ports_trunc(struct ofpbuf *b)
+static ovs_be32
+netdev_port_features_to_ofp10(enum netdev_features features)
{
- struct ofp_header *oh = b->data;
-
- if (max_ports_in_features(oh)) {
- /* Remove all the ports. */
- b->size = (sizeof(struct ofp_header)
- + sizeof(struct ofp_switch_features));
- ofpmsg_update_length(b);
+ return htonl((features & 0x7f) | ((features & 0xf800) >> 4));
+}
- return true;
- }
+BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
+BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
+BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
+BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
+BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
+BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
+BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
+BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */
+BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */
+BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */
+BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */
+BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */
+BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */
+BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */
+BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */
+BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */
- return false;
+static enum netdev_features
+netdev_port_features_from_ofp11(ovs_be32 ofp11)
+{
+ return ntohl(ofp11) & 0xffff;
}
static ovs_be32
-encode_action_bits(enum ofputil_action_bitmap ofputil_actions,
- const struct ofputil_action_bit_translation *x)
+netdev_port_features_to_ofp11(enum netdev_features features)
{
- uint32_t of_actions;
-
- of_actions = 0;
- for (; x->ofputil_bit; x++) {
- if (ofputil_actions & x->ofputil_bit) {
- of_actions |= 1 << x->of_bit;
- }
- }
- return htonl(of_actions);
+ return htonl(features & 0xffff);
}
-/* Returns a buffer owned by the caller that encodes 'features' in the format
- * required by 'protocol' with the given 'xid'. The caller should append port
- * information to the buffer with subsequent calls to
- * ofputil_put_switch_features_port(). */
-struct ofpbuf *
-ofputil_encode_switch_features(const struct ofputil_switch_features *features,
- enum ofputil_protocol protocol, ovs_be32 xid)
+static enum ofperr
+ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp,
+ const struct ofp10_phy_port *opp)
{
- struct ofp_switch_features *osf;
- struct ofpbuf *b;
- enum ofp_version version;
- enum ofpraw raw;
+ memset(pp, 0, sizeof *pp);
- version = ofputil_protocol_to_ofp_version(protocol);
- switch (version) {
- case OFP10_VERSION:
- raw = OFPRAW_OFPT10_FEATURES_REPLY;
- break;
- case OFP11_VERSION:
- case OFP12_VERSION:
- raw = OFPRAW_OFPT11_FEATURES_REPLY;
- break;
- case OFP13_VERSION:
- raw = OFPRAW_OFPT13_FEATURES_REPLY;
- break;
- default:
- NOT_REACHED();
- }
- b = ofpraw_alloc_xid(raw, version, xid, 0);
- osf = ofpbuf_put_zeros(b, sizeof *osf);
- osf->datapath_id = htonll(features->datapath_id);
- osf->n_buffers = htonl(features->n_buffers);
- osf->n_tables = features->n_tables;
+ pp->port_no = u16_to_ofp(ntohs(opp->port_no));
+ memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN);
+ ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN);
- osf->capabilities = htonl(features->capabilities & OFPC_COMMON);
- osf->capabilities = htonl(features->capabilities &
- ofputil_capabilities_mask(version));
- switch (version) {
- case OFP10_VERSION:
- if (features->capabilities & OFPUTIL_C_STP) {
- osf->capabilities |= htonl(OFPC10_STP);
- }
- osf->actions = encode_action_bits(features->actions, of10_action_bits);
- break;
- case OFP13_VERSION:
- osf->auxiliary_id = features->auxiliary_id;
- /* fall through */
- case OFP11_VERSION:
- case OFP12_VERSION:
- if (features->capabilities & OFPUTIL_C_GROUP_STATS) {
- osf->capabilities |= htonl(OFPC11_GROUP_STATS);
- }
- break;
- default:
- NOT_REACHED();
- }
+ pp->config = ntohl(opp->config) & OFPPC10_ALL;
+ pp->state = ntohl(opp->state) & OFPPS10_ALL;
- return b;
-}
+ pp->curr = netdev_port_features_from_ofp10(opp->curr);
+ pp->advertised = netdev_port_features_from_ofp10(opp->advertised);
+ pp->supported = netdev_port_features_from_ofp10(opp->supported);
+ pp->peer = netdev_port_features_from_ofp10(opp->peer);
-/* Encodes 'pp' into the format required by the switch_features message already
- * in 'b', which should have been returned by ofputil_encode_switch_features(),
- * and appends the encoded version to 'b'. */
-void
-ofputil_put_switch_features_port(const struct ofputil_phy_port *pp,
- struct ofpbuf *b)
-{
- const struct ofp_header *oh = b->data;
+ pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000;
+ pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000;
- if (oh->version < OFP13_VERSION) {
- ofputil_put_phy_port(oh->version, pp, b);
- }
+ return 0;
}
-\f
-/* ofputil_port_status */
-/* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
- * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
-enum ofperr
-ofputil_decode_port_status(const struct ofp_header *oh,
- struct ofputil_port_status *ps)
+static enum ofperr
+ofputil_decode_ofp11_port(struct ofputil_phy_port *pp,
+ const struct ofp11_port *op)
{
- const struct ofp_port_status *ops;
- struct ofpbuf b;
- int retval;
+ enum ofperr error;
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
- ofpraw_pull_assert(&b);
- ops = ofpbuf_pull(&b, sizeof *ops);
+ memset(pp, 0, sizeof *pp);
- if (ops->reason != OFPPR_ADD &&
- ops->reason != OFPPR_DELETE &&
- ops->reason != OFPPR_MODIFY) {
- return OFPERR_NXBRC_BAD_REASON;
+ error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
+ if (error) {
+ return error;
}
- ps->reason = ops->reason;
+ memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN);
+ ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN);
- retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc);
- ovs_assert(retval != EOF);
- return retval;
+ pp->config = ntohl(op->config) & OFPPC11_ALL;
+ pp->state = ntohl(op->state) & OFPPC11_ALL;
+
+ pp->curr = netdev_port_features_from_ofp11(op->curr);
+ pp->advertised = netdev_port_features_from_ofp11(op->advertised);
+ pp->supported = netdev_port_features_from_ofp11(op->supported);
+ pp->peer = netdev_port_features_from_ofp11(op->peer);
+
+ pp->curr_speed = ntohl(op->curr_speed);
+ pp->max_speed = ntohl(op->max_speed);
+
+ return 0;
}
-/* Converts the abstract form of a "port status" message in '*ps' into an
- * OpenFlow message suitable for 'protocol', and returns that encoded form in
- * a buffer owned by the caller. */
-struct ofpbuf *
-ofputil_encode_port_status(const struct ofputil_port_status *ps,
- enum ofputil_protocol protocol)
+static size_t
+ofputil_get_phy_port_size(enum ofp_version ofp_version)
{
- struct ofp_port_status *ops;
- struct ofpbuf *b;
- enum ofp_version version;
- enum ofpraw raw;
-
- version = ofputil_protocol_to_ofp_version(protocol);
- switch (version) {
+ switch (ofp_version) {
case OFP10_VERSION:
- raw = OFPRAW_OFPT10_PORT_STATUS;
- break;
-
+ return sizeof(struct ofp10_phy_port);
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION:
- raw = OFPRAW_OFPT11_PORT_STATUS;
- break;
-
+ return sizeof(struct ofp11_port);
default:
NOT_REACHED();
}
-
- b = ofpraw_alloc_xid(raw, version, htonl(0), 0);
- ops = ofpbuf_put_zeros(b, sizeof *ops);
- ops->reason = ps->reason;
- ofputil_put_phy_port(version, &ps->desc, b);
- ofpmsg_update_length(b);
- return b;
}
-\f
-/* ofputil_port_mod */
-/* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in
- * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
-enum ofperr
-ofputil_decode_port_mod(const struct ofp_header *oh,
- struct ofputil_port_mod *pm)
+static void
+ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp,
+ struct ofp10_phy_port *opp)
{
- enum ofpraw raw;
- struct ofpbuf b;
+ memset(opp, 0, sizeof *opp);
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
- raw = ofpraw_pull_assert(&b);
+ opp->port_no = htons(ofp_to_u16(pp->port_no));
+ memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
+ ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN);
- if (raw == OFPRAW_OFPT10_PORT_MOD) {
- const struct ofp10_port_mod *opm = b.data;
+ opp->config = htonl(pp->config & OFPPC10_ALL);
+ opp->state = htonl(pp->state & OFPPS10_ALL);
- pm->port_no = ntohs(opm->port_no);
- memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
- pm->config = ntohl(opm->config) & OFPPC10_ALL;
- pm->mask = ntohl(opm->mask) & OFPPC10_ALL;
- pm->advertise = netdev_port_features_from_ofp10(opm->advertise);
- } else if (raw == OFPRAW_OFPT11_PORT_MOD) {
- const struct ofp11_port_mod *opm = b.data;
- enum ofperr error;
+ opp->curr = netdev_port_features_to_ofp10(pp->curr);
+ opp->advertised = netdev_port_features_to_ofp10(pp->advertised);
+ opp->supported = netdev_port_features_to_ofp10(pp->supported);
+ opp->peer = netdev_port_features_to_ofp10(pp->peer);
+}
- error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
- if (error) {
- return error;
- }
+static void
+ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp,
+ struct ofp11_port *op)
+{
+ memset(op, 0, sizeof *op);
- memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
- pm->config = ntohl(opm->config) & OFPPC11_ALL;
- pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
- pm->advertise = netdev_port_features_from_ofp11(opm->advertise);
- } else {
- return OFPERR_OFPBRC_BAD_TYPE;
- }
+ op->port_no = ofputil_port_to_ofp11(pp->port_no);
+ memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
+ ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN);
- pm->config &= pm->mask;
- return 0;
+ op->config = htonl(pp->config & OFPPC11_ALL);
+ op->state = htonl(pp->state & OFPPS11_ALL);
+
+ op->curr = netdev_port_features_to_ofp11(pp->curr);
+ op->advertised = netdev_port_features_to_ofp11(pp->advertised);
+ op->supported = netdev_port_features_to_ofp11(pp->supported);
+ op->peer = netdev_port_features_to_ofp11(pp->peer);
+
+ op->curr_speed = htonl(pp->curr_speed);
+ op->max_speed = htonl(pp->max_speed);
}
-/* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow
- * message suitable for 'protocol', and returns that encoded form in a buffer
- * owned by the caller. */
-struct ofpbuf *
-ofputil_encode_port_mod(const struct ofputil_port_mod *pm,
- enum ofputil_protocol protocol)
+static void
+ofputil_put_phy_port(enum ofp_version ofp_version,
+ const struct ofputil_phy_port *pp, struct ofpbuf *b)
{
- enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
- struct ofpbuf *b;
-
switch (ofp_version) {
case OFP10_VERSION: {
- struct ofp10_port_mod *opm;
-
- b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0);
- opm = ofpbuf_put_zeros(b, sizeof *opm);
- opm->port_no = htons(pm->port_no);
- memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
- opm->config = htonl(pm->config & OFPPC10_ALL);
- opm->mask = htonl(pm->mask & OFPPC10_ALL);
- opm->advertise = netdev_port_features_to_ofp10(pm->advertise);
+ struct ofp10_phy_port *opp;
+ if (b->size + sizeof *opp <= UINT16_MAX) {
+ opp = ofpbuf_put_uninit(b, sizeof *opp);
+ ofputil_encode_ofp10_phy_port(pp, opp);
+ }
break;
}
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION: {
- struct ofp11_port_mod *opm;
-
- b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0);
- opm = ofpbuf_put_zeros(b, sizeof *opm);
- opm->port_no = ofputil_port_to_ofp11(pm->port_no);
- memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
- opm->config = htonl(pm->config & OFPPC11_ALL);
- opm->mask = htonl(pm->mask & OFPPC11_ALL);
- opm->advertise = netdev_port_features_to_ofp11(pm->advertise);
+ struct ofp11_port *op;
+ if (b->size + sizeof *op <= UINT16_MAX) {
+ op = ofpbuf_put_uninit(b, sizeof *op);
+ ofputil_encode_ofp11_port(pp, op);
+ }
break;
}
default:
NOT_REACHED();
}
-
- return b;
}
-\f
-/* ofputil_role_request */
-/* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into
- * an abstract form in '*rr'. Returns 0 if successful, otherwise an
- * OFPERR_* value. */
-enum ofperr
-ofputil_decode_role_message(const struct ofp_header *oh,
- struct ofputil_role_request *rr)
+void
+ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version,
+ const struct ofputil_phy_port *pp,
+ struct list *replies)
{
- const struct ofp12_role_request *orr = ofpmsg_body(oh);
- uint32_t role = ntohl(orr->role);
- struct ofpbuf b;
- enum ofpraw raw;
-
- memset(rr, 0, sizeof *rr);
-
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
- raw = ofpraw_pull_assert(&b);
+ switch (ofp_version) {
+ case OFP10_VERSION: {
+ struct ofp10_phy_port *opp;
- if (raw == OFPRAW_OFPT12_ROLE_REQUEST
- || raw == OFPRAW_OFPT12_ROLE_REPLY) {
+ opp = ofpmp_append(replies, sizeof *opp);
+ ofputil_encode_ofp10_phy_port(pp, opp);
+ break;
+ }
- if (raw == OFPRAW_OFPT12_ROLE_REQUEST) {
- if (role == OFPCR12_ROLE_NOCHANGE) {
- rr->request_current_role_only = true;
- return 0;
- }
- if (role == OFPCR12_ROLE_MASTER || role == OFPCR12_ROLE_SLAVE) {
- rr->generation_id = ntohll(orr->generation_id);
- rr->have_generation_id = true;
- }
- }
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ struct ofp11_port *op;
- /* Map to enum nx_role */
- role -= 1; /* OFPCR12_ROLE_MASTER -> NX_ROLE_MASTER etc. */
- } else if (raw != OFPRAW_NXT_ROLE_REQUEST
- && raw != OFPRAW_NXT_ROLE_REPLY) {
- return OFPERR_OFPBRC_BAD_TYPE;
+ op = ofpmp_append(replies, sizeof *op);
+ ofputil_encode_ofp11_port(pp, op);
+ break;
}
- if (role != NX_ROLE_OTHER && role != NX_ROLE_MASTER
- && role != NX_ROLE_SLAVE) {
- return OFPERR_OFPRRFC_BAD_ROLE;
+ default:
+ NOT_REACHED();
}
-
- rr->role = role;
- return 0;
}
+\f
+/* ofputil_switch_features */
-/* Returns an encoded form of a role reply suitable for the "request" in a
- * buffer owned by the caller. */
-struct ofpbuf *
-ofputil_encode_role_reply(const struct ofp_header *request,
- enum nx_role role)
-{
- struct ofp12_role_request *reply;
- struct ofpbuf *buf;
- size_t reply_size;
+#define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
+ OFPC_IP_REASM | OFPC_QUEUE_STATS)
+BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS);
+BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS);
+BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS);
+BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM);
+BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS);
+BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP);
- struct ofpbuf b;
- enum ofpraw raw;
+struct ofputil_action_bit_translation {
+ enum ofputil_action_bitmap ofputil_bit;
+ int of_bit;
+};
- ofpbuf_use_const(&b, request, ntohs(request->length));
- raw = ofpraw_pull_assert(&b);
- if (raw == OFPRAW_OFPT12_ROLE_REQUEST) {
- reply_size = sizeof (struct ofp12_role_request);
- raw = OFPRAW_OFPT12_ROLE_REPLY;
- }
- else if (raw == OFPRAW_NXT_ROLE_REQUEST) {
- reply_size = sizeof (struct nx_role_request);
- raw = OFPRAW_NXT_ROLE_REPLY;
- } else {
- NOT_REACHED();
- }
+static const struct ofputil_action_bit_translation of10_action_bits[] = {
+ { OFPUTIL_A_OUTPUT, OFPAT10_OUTPUT },
+ { OFPUTIL_A_SET_VLAN_VID, OFPAT10_SET_VLAN_VID },
+ { OFPUTIL_A_SET_VLAN_PCP, OFPAT10_SET_VLAN_PCP },
+ { OFPUTIL_A_STRIP_VLAN, OFPAT10_STRIP_VLAN },
+ { OFPUTIL_A_SET_DL_SRC, OFPAT10_SET_DL_SRC },
+ { OFPUTIL_A_SET_DL_DST, OFPAT10_SET_DL_DST },
+ { OFPUTIL_A_SET_NW_SRC, OFPAT10_SET_NW_SRC },
+ { OFPUTIL_A_SET_NW_DST, OFPAT10_SET_NW_DST },
+ { OFPUTIL_A_SET_NW_TOS, OFPAT10_SET_NW_TOS },
+ { OFPUTIL_A_SET_TP_SRC, OFPAT10_SET_TP_SRC },
+ { OFPUTIL_A_SET_TP_DST, OFPAT10_SET_TP_DST },
+ { OFPUTIL_A_ENQUEUE, OFPAT10_ENQUEUE },
+ { 0, 0 },
+};
- buf = ofpraw_alloc_reply(raw, request, 0);
- reply = ofpbuf_put_zeros(buf, reply_size);
+static enum ofputil_action_bitmap
+decode_action_bits(ovs_be32 of_actions,
+ const struct ofputil_action_bit_translation *x)
+{
+ enum ofputil_action_bitmap ofputil_actions;
- if (raw == OFPRAW_OFPT12_ROLE_REPLY) {
- /* Map to OpenFlow enum ofp12_controller_role */
- role += 1; /* NX_ROLE_MASTER -> OFPCR12_ROLE_MASTER etc. */
- /*
- * OpenFlow specification does not specify use of generation_id field
- * on reply messages. Intuitively, it would seem a good idea to return
- * the current value. However, the current value is undefined
- * initially, and there is no way to insert an undefined value in the
- * message. Therefore we leave the generation_id zeroed on reply
- * messages.
- *
- * A request for clarification has been filed with the Open Networking
- * Foundation as EXT-272.
- */
+ ofputil_actions = 0;
+ for (; x->ofputil_bit; x++) {
+ if (of_actions & htonl(1u << x->of_bit)) {
+ ofputil_actions |= x->ofputil_bit;
+ }
}
- reply->role = htonl(role);
+ return ofputil_actions;
+}
- return buf;
+static uint32_t
+ofputil_capabilities_mask(enum ofp_version ofp_version)
+{
+ /* Handle capabilities whose bit is unique for all Open Flow versions */
+ switch (ofp_version) {
+ case OFP10_VERSION:
+ case OFP11_VERSION:
+ return OFPC_COMMON | OFPC_ARP_MATCH_IP;
+ case OFP12_VERSION:
+ case OFP13_VERSION:
+ return OFPC_COMMON | OFPC12_PORT_BLOCKED;
+ default:
+ /* Caller needs to check osf->header.version itself */
+ return 0;
+ }
}
-\f
-/* Table stats. */
-static void
-ofputil_put_ofp10_table_stats(const struct ofp12_table_stats *in,
- struct ofpbuf *buf)
+/* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an
+ * abstract representation in '*features'. Initializes '*b' to iterate over
+ * the OpenFlow port structures following 'osf' with later calls to
+ * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an
+ * OFPERR_* value. */
+enum ofperr
+ofputil_decode_switch_features(const struct ofp_header *oh,
+ struct ofputil_switch_features *features,
+ struct ofpbuf *b)
{
- struct wc_map {
- enum ofp10_flow_wildcards wc10;
- enum oxm12_ofb_match_fields mf12;
- };
+ const struct ofp_switch_features *osf;
+ enum ofpraw raw;
- static const struct wc_map wc_map[] = {
- { OFPFW10_IN_PORT, OFPXMT12_OFB_IN_PORT },
- { OFPFW10_DL_VLAN, OFPXMT12_OFB_VLAN_VID },
- { OFPFW10_DL_SRC, OFPXMT12_OFB_ETH_SRC },
- { OFPFW10_DL_DST, OFPXMT12_OFB_ETH_DST},
- { OFPFW10_DL_TYPE, OFPXMT12_OFB_ETH_TYPE },
- { OFPFW10_NW_PROTO, OFPXMT12_OFB_IP_PROTO },
- { OFPFW10_TP_SRC, OFPXMT12_OFB_TCP_SRC },
- { OFPFW10_TP_DST, OFPXMT12_OFB_TCP_DST },
- { OFPFW10_NW_SRC_MASK, OFPXMT12_OFB_IPV4_SRC },
- { OFPFW10_NW_DST_MASK, OFPXMT12_OFB_IPV4_DST },
- { OFPFW10_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP },
- { OFPFW10_NW_TOS, OFPXMT12_OFB_IP_DSCP },
- };
+ ofpbuf_use_const(b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(b);
- struct ofp10_table_stats *out;
- const struct wc_map *p;
+ osf = ofpbuf_pull(b, sizeof *osf);
+ features->datapath_id = ntohll(osf->datapath_id);
+ features->n_buffers = ntohl(osf->n_buffers);
+ features->n_tables = osf->n_tables;
+ features->auxiliary_id = 0;
- out = ofpbuf_put_zeros(buf, sizeof *out);
- out->table_id = in->table_id;
- ovs_strlcpy(out->name, in->name, sizeof out->name);
- out->wildcards = 0;
- for (p = wc_map; p < &wc_map[ARRAY_SIZE(wc_map)]; p++) {
- if (in->wildcards & htonll(1ULL << p->mf12)) {
- out->wildcards |= htonl(p->wc10);
+ features->capabilities = ntohl(osf->capabilities) &
+ ofputil_capabilities_mask(oh->version);
+
+ if (b->size % ofputil_get_phy_port_size(oh->version)) {
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ if (raw == OFPRAW_OFPT10_FEATURES_REPLY) {
+ if (osf->capabilities & htonl(OFPC10_STP)) {
+ features->capabilities |= OFPUTIL_C_STP;
+ }
+ features->actions = decode_action_bits(osf->actions, of10_action_bits);
+ } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY
+ || raw == OFPRAW_OFPT13_FEATURES_REPLY) {
+ if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) {
+ features->capabilities |= OFPUTIL_C_GROUP_STATS;
+ }
+ features->actions = 0;
+ if (raw == OFPRAW_OFPT13_FEATURES_REPLY) {
+ features->auxiliary_id = osf->auxiliary_id;
}
+ } else {
+ return OFPERR_OFPBRC_BAD_VERSION;
}
- out->max_entries = in->max_entries;
- out->active_count = in->active_count;
- put_32aligned_be64(&out->lookup_count, in->lookup_count);
- put_32aligned_be64(&out->matched_count, in->matched_count);
+
+ return 0;
}
-static ovs_be32
-oxm12_to_ofp11_flow_match_fields(ovs_be64 oxm12)
+/* Returns true if the maximum number of ports are in 'oh'. */
+static bool
+max_ports_in_features(const struct ofp_header *oh)
{
- struct map {
- enum ofp11_flow_match_fields fmf11;
- enum oxm12_ofb_match_fields mf12;
- };
+ size_t pp_size = ofputil_get_phy_port_size(oh->version);
+ return ntohs(oh->length) + pp_size > UINT16_MAX;
+}
- static const struct map map[] = {
- { OFPFMF11_IN_PORT, OFPXMT12_OFB_IN_PORT },
- { OFPFMF11_DL_VLAN, OFPXMT12_OFB_VLAN_VID },
- { OFPFMF11_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP },
- { OFPFMF11_DL_TYPE, OFPXMT12_OFB_ETH_TYPE },
- { OFPFMF11_NW_TOS, OFPXMT12_OFB_IP_DSCP },
- { OFPFMF11_NW_PROTO, OFPXMT12_OFB_IP_PROTO },
- { OFPFMF11_TP_SRC, OFPXMT12_OFB_TCP_SRC },
- { OFPFMF11_TP_DST, OFPXMT12_OFB_TCP_DST },
- { OFPFMF11_MPLS_LABEL, OFPXMT12_OFB_MPLS_LABEL },
- { OFPFMF11_MPLS_TC, OFPXMT12_OFB_MPLS_TC },
- /* I don't know what OFPFMF11_TYPE means. */
- { OFPFMF11_DL_SRC, OFPXMT12_OFB_ETH_SRC },
- { OFPFMF11_DL_DST, OFPXMT12_OFB_ETH_DST },
- { OFPFMF11_NW_SRC, OFPXMT12_OFB_IPV4_SRC },
- { OFPFMF11_NW_DST, OFPXMT12_OFB_IPV4_DST },
- { OFPFMF11_METADATA, OFPXMT12_OFB_METADATA },
- };
+/* Given a buffer 'b' that contains a Features Reply message, checks if
+ * it contains the maximum number of ports that will fit. If so, it
+ * returns true and removes the ports from the message. The caller
+ * should then send an OFPST_PORT_DESC stats request to get the ports,
+ * since the switch may have more ports than could be represented in the
+ * Features Reply. Otherwise, returns false.
+ */
+bool
+ofputil_switch_features_ports_trunc(struct ofpbuf *b)
+{
+ struct ofp_header *oh = b->data;
- const struct map *p;
- uint32_t fmf11;
+ if (max_ports_in_features(oh)) {
+ /* Remove all the ports. */
+ b->size = (sizeof(struct ofp_header)
+ + sizeof(struct ofp_switch_features));
+ ofpmsg_update_length(b);
- fmf11 = 0;
- for (p = map; p < &map[ARRAY_SIZE(map)]; p++) {
- if (oxm12 & htonll(1ULL << p->mf12)) {
- fmf11 |= p->fmf11;
- }
+ return true;
}
- return htonl(fmf11);
-}
-
-static void
-ofputil_put_ofp11_table_stats(const struct ofp12_table_stats *in,
- struct ofpbuf *buf)
-{
- struct ofp11_table_stats *out;
- out = ofpbuf_put_zeros(buf, sizeof *out);
- out->table_id = in->table_id;
- ovs_strlcpy(out->name, in->name, sizeof out->name);
- out->wildcards = oxm12_to_ofp11_flow_match_fields(in->wildcards);
- out->match = oxm12_to_ofp11_flow_match_fields(in->match);
- out->instructions = in->instructions;
- out->write_actions = in->write_actions;
- out->apply_actions = in->apply_actions;
- out->config = in->config;
- out->max_entries = in->max_entries;
- out->active_count = in->active_count;
- out->lookup_count = in->lookup_count;
- out->matched_count = in->matched_count;
+ return false;
}
-static void
-ofputil_put_ofp13_table_stats(const struct ofp12_table_stats *in,
- struct ofpbuf *buf)
+static ovs_be32
+encode_action_bits(enum ofputil_action_bitmap ofputil_actions,
+ const struct ofputil_action_bit_translation *x)
{
- struct ofp13_table_stats *out;
-
- /* OF 1.3 splits table features off the ofp_table_stats,
- * so there is not much here. */
+ uint32_t of_actions;
- out = ofpbuf_put_uninit(buf, sizeof *out);
- out->table_id = in->table_id;
- out->active_count = in->active_count;
- out->lookup_count = in->lookup_count;
- out->matched_count = in->matched_count;
+ of_actions = 0;
+ for (; x->ofputil_bit; x++) {
+ if (ofputil_actions & x->ofputil_bit) {
+ of_actions |= 1 << x->of_bit;
+ }
+ }
+ return htonl(of_actions);
}
+/* Returns a buffer owned by the caller that encodes 'features' in the format
+ * required by 'protocol' with the given 'xid'. The caller should append port
+ * information to the buffer with subsequent calls to
+ * ofputil_put_switch_features_port(). */
struct ofpbuf *
-ofputil_encode_table_stats_reply(const struct ofp12_table_stats stats[], int n,
- const struct ofp_header *request)
+ofputil_encode_switch_features(const struct ofputil_switch_features *features,
+ enum ofputil_protocol protocol, ovs_be32 xid)
{
- struct ofpbuf *reply;
- int i;
-
- reply = ofpraw_alloc_stats_reply(request, n * sizeof *stats);
+ struct ofp_switch_features *osf;
+ struct ofpbuf *b;
+ enum ofp_version version;
+ enum ofpraw raw;
- switch ((enum ofp_version) request->version) {
+ version = ofputil_protocol_to_ofp_version(protocol);
+ switch (version) {
case OFP10_VERSION:
- for (i = 0; i < n; i++) {
- ofputil_put_ofp10_table_stats(&stats[i], reply);
- }
+ raw = OFPRAW_OFPT10_FEATURES_REPLY;
break;
-
case OFP11_VERSION:
- for (i = 0; i < n; i++) {
- ofputil_put_ofp11_table_stats(&stats[i], reply);
- }
- break;
-
case OFP12_VERSION:
- ofpbuf_put(reply, stats, n * sizeof *stats);
+ raw = OFPRAW_OFPT11_FEATURES_REPLY;
break;
+ case OFP13_VERSION:
+ raw = OFPRAW_OFPT13_FEATURES_REPLY;
+ break;
+ default:
+ NOT_REACHED();
+ }
+ b = ofpraw_alloc_xid(raw, version, xid, 0);
+ osf = ofpbuf_put_zeros(b, sizeof *osf);
+ osf->datapath_id = htonll(features->datapath_id);
+ osf->n_buffers = htonl(features->n_buffers);
+ osf->n_tables = features->n_tables;
+ osf->capabilities = htonl(features->capabilities & OFPC_COMMON);
+ osf->capabilities = htonl(features->capabilities &
+ ofputil_capabilities_mask(version));
+ switch (version) {
+ case OFP10_VERSION:
+ if (features->capabilities & OFPUTIL_C_STP) {
+ osf->capabilities |= htonl(OFPC10_STP);
+ }
+ osf->actions = encode_action_bits(features->actions, of10_action_bits);
+ break;
case OFP13_VERSION:
- for (i = 0; i < n; i++) {
- ofputil_put_ofp13_table_stats(&stats[i], reply);
+ osf->auxiliary_id = features->auxiliary_id;
+ /* fall through */
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ if (features->capabilities & OFPUTIL_C_GROUP_STATS) {
+ osf->capabilities |= htonl(OFPC11_GROUP_STATS);
}
break;
-
default:
NOT_REACHED();
}
- return reply;
+ return b;
}
-\f
-/* ofputil_flow_monitor_request */
-/* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract
- * ofputil_flow_monitor_request in 'rq'.
- *
- * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow
- * message. Calling this function multiple times for a single 'msg' iterates
- * through the requests. The caller must initially leave 'msg''s layer
- * pointers null and not modify them between calls.
- *
- * Returns 0 if successful, EOF if no requests were left in this 'msg',
- * otherwise an OFPERR_* value. */
-int
-ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq,
- struct ofpbuf *msg)
+/* Encodes 'pp' into the format required by the switch_features message already
+ * in 'b', which should have been returned by ofputil_encode_switch_features(),
+ * and appends the encoded version to 'b'. */
+void
+ofputil_put_switch_features_port(const struct ofputil_phy_port *pp,
+ struct ofpbuf *b)
{
- struct nx_flow_monitor_request *nfmr;
- uint16_t flags;
-
- if (!msg->l2) {
- msg->l2 = msg->data;
- ofpraw_pull_assert(msg);
- }
-
- if (!msg->size) {
- return EOF;
- }
-
- nfmr = ofpbuf_try_pull(msg, sizeof *nfmr);
- if (!nfmr) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %zu "
- "leftover bytes at end", msg->size);
- return OFPERR_OFPBRC_BAD_LEN;
- }
-
- flags = ntohs(nfmr->flags);
- if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY))
- || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE
- | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16,
- flags);
- return OFPERR_NXBRC_FM_BAD_FLAGS;
- }
+ const struct ofp_header *oh = b->data;
- if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) {
- return OFPERR_NXBRC_MUST_BE_ZERO;
+ if (oh->version < OFP13_VERSION) {
+ ofputil_put_phy_port(oh->version, pp, b);
}
-
- rq->id = ntohl(nfmr->id);
- rq->flags = flags;
- rq->out_port = ntohs(nfmr->out_port);
- rq->table_id = nfmr->table_id;
-
- return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL);
}
+\f
+/* ofputil_port_status */
-void
-ofputil_append_flow_monitor_request(
- const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg)
+/* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
+ * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
+enum ofperr
+ofputil_decode_port_status(const struct ofp_header *oh,
+ struct ofputil_port_status *ps)
{
- struct nx_flow_monitor_request *nfmr;
- size_t start_ofs;
- int match_len;
+ const struct ofp_port_status *ops;
+ struct ofpbuf b;
+ int retval;
- if (!msg->size) {
- ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg);
- }
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ ofpraw_pull_assert(&b);
+ ops = ofpbuf_pull(&b, sizeof *ops);
- start_ofs = msg->size;
- ofpbuf_put_zeros(msg, sizeof *nfmr);
- match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0));
+ if (ops->reason != OFPPR_ADD &&
+ ops->reason != OFPPR_DELETE &&
+ ops->reason != OFPPR_MODIFY) {
+ return OFPERR_NXBRC_BAD_REASON;
+ }
+ ps->reason = ops->reason;
- nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr);
- nfmr->id = htonl(rq->id);
- nfmr->flags = htons(rq->flags);
- nfmr->out_port = htons(rq->out_port);
- nfmr->match_len = htons(match_len);
- nfmr->table_id = rq->table_id;
+ retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc);
+ ovs_assert(retval != EOF);
+ return retval;
}
-/* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg'
- * into an abstract ofputil_flow_update in 'update'. The caller must have
- * initialized update->match to point to space allocated for a match.
- *
- * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's
- * actions (except for NXFME_ABBREV, which never includes actions). The caller
- * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts'
- * will point into the 'ofpacts' buffer.
- *
- * Multiple flow updates can be packed into a single OpenFlow message. Calling
- * this function multiple times for a single 'msg' iterates through the
- * updates. The caller must initially leave 'msg''s layer pointers null and
- * not modify them between calls.
- *
- * Returns 0 if successful, EOF if no updates were left in this 'msg',
- * otherwise an OFPERR_* value. */
-int
-ofputil_decode_flow_update(struct ofputil_flow_update *update,
- struct ofpbuf *msg, struct ofpbuf *ofpacts)
+/* Converts the abstract form of a "port status" message in '*ps' into an
+ * OpenFlow message suitable for 'protocol', and returns that encoded form in
+ * a buffer owned by the caller. */
+struct ofpbuf *
+ofputil_encode_port_status(const struct ofputil_port_status *ps,
+ enum ofputil_protocol protocol)
{
- struct nx_flow_update_header *nfuh;
- unsigned int length;
-
- if (!msg->l2) {
- msg->l2 = msg->data;
- ofpraw_pull_assert(msg);
- }
+ struct ofp_port_status *ops;
+ struct ofpbuf *b;
+ enum ofp_version version;
+ enum ofpraw raw;
- if (!msg->size) {
- return EOF;
- }
+ version = ofputil_protocol_to_ofp_version(protocol);
+ switch (version) {
+ case OFP10_VERSION:
+ raw = OFPRAW_OFPT10_PORT_STATUS;
+ break;
- if (msg->size < sizeof(struct nx_flow_update_header)) {
- goto bad_len;
- }
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION:
+ raw = OFPRAW_OFPT11_PORT_STATUS;
+ break;
- nfuh = msg->data;
- update->event = ntohs(nfuh->event);
- length = ntohs(nfuh->length);
- if (length > msg->size || length % 8) {
- goto bad_len;
+ default:
+ NOT_REACHED();
}
- if (update->event == NXFME_ABBREV) {
- struct nx_flow_update_abbrev *nfua;
-
- if (length != sizeof *nfua) {
- goto bad_len;
- }
+ b = ofpraw_alloc_xid(raw, version, htonl(0), 0);
+ ops = ofpbuf_put_zeros(b, sizeof *ops);
+ ops->reason = ps->reason;
+ ofputil_put_phy_port(version, &ps->desc, b);
+ ofpmsg_update_length(b);
+ return b;
+}
- nfua = ofpbuf_pull(msg, sizeof *nfua);
- update->xid = nfua->xid;
- return 0;
- } else if (update->event == NXFME_ADDED
- || update->event == NXFME_DELETED
- || update->event == NXFME_MODIFIED) {
- struct nx_flow_update_full *nfuf;
- unsigned int actions_len;
- unsigned int match_len;
- enum ofperr error;
+/* ofputil_port_mod */
- if (length < sizeof *nfuf) {
- goto bad_len;
- }
+/* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in
+ * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
+enum ofperr
+ofputil_decode_port_mod(const struct ofp_header *oh,
+ struct ofputil_port_mod *pm)
+{
+ enum ofpraw raw;
+ struct ofpbuf b;
- nfuf = ofpbuf_pull(msg, sizeof *nfuf);
- match_len = ntohs(nfuf->match_len);
- if (sizeof *nfuf + match_len > length) {
- goto bad_len;
- }
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
- update->reason = ntohs(nfuf->reason);
- update->idle_timeout = ntohs(nfuf->idle_timeout);
- update->hard_timeout = ntohs(nfuf->hard_timeout);
- update->table_id = nfuf->table_id;
- update->cookie = nfuf->cookie;
- update->priority = ntohs(nfuf->priority);
+ if (raw == OFPRAW_OFPT10_PORT_MOD) {
+ const struct ofp10_port_mod *opm = b.data;
- error = nx_pull_match(msg, match_len, update->match, NULL, NULL);
- if (error) {
- return error;
- }
+ pm->port_no = u16_to_ofp(ntohs(opm->port_no));
+ memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
+ pm->config = ntohl(opm->config) & OFPPC10_ALL;
+ pm->mask = ntohl(opm->mask) & OFPPC10_ALL;
+ pm->advertise = netdev_port_features_from_ofp10(opm->advertise);
+ } else if (raw == OFPRAW_OFPT11_PORT_MOD) {
+ const struct ofp11_port_mod *opm = b.data;
+ enum ofperr error;
- actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8);
- error = ofpacts_pull_openflow10(msg, actions_len, ofpacts);
+ error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
if (error) {
return error;
}
- update->ofpacts = ofpacts->data;
- update->ofpacts_len = ofpacts->size;
- return 0;
+ memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
+ pm->config = ntohl(opm->config) & OFPPC11_ALL;
+ pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
+ pm->advertise = netdev_port_features_from_ofp11(opm->advertise);
} else {
- VLOG_WARN_RL(&bad_ofmsg_rl,
- "NXST_FLOW_MONITOR reply has bad event %"PRIu16,
- ntohs(nfuh->event));
- return OFPERR_NXBRC_FM_BAD_EVENT;
+ return OFPERR_OFPBRC_BAD_TYPE;
}
-bad_len:
- VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %zu "
- "leftover bytes at end", msg->size);
- return OFPERR_OFPBRC_BAD_LEN;
-}
-
-uint32_t
-ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh)
-{
- const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh);
-
- return ntohl(cancel->id);
+ pm->config &= pm->mask;
+ return 0;
}
+/* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow
+ * message suitable for 'protocol', and returns that encoded form in a buffer
+ * owned by the caller. */
struct ofpbuf *
-ofputil_encode_flow_monitor_cancel(uint32_t id)
+ofputil_encode_port_mod(const struct ofputil_port_mod *pm,
+ enum ofputil_protocol protocol)
{
- struct nx_flow_monitor_cancel *nfmc;
- struct ofpbuf *msg;
+ enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
+ struct ofpbuf *b;
- msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0);
- nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc);
- nfmc->id = htonl(id);
- return msg;
-}
+ switch (ofp_version) {
+ case OFP10_VERSION: {
+ struct ofp10_port_mod *opm;
-void
-ofputil_start_flow_update(struct list *replies)
-{
- struct ofpbuf *msg;
+ b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0);
+ opm = ofpbuf_put_zeros(b, sizeof *opm);
+ opm->port_no = htons(ofp_to_u16(pm->port_no));
+ memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
+ opm->config = htonl(pm->config & OFPPC10_ALL);
+ opm->mask = htonl(pm->mask & OFPPC10_ALL);
+ opm->advertise = netdev_port_features_to_ofp10(pm->advertise);
+ break;
+ }
- msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION,
- htonl(0), 1024);
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ struct ofp11_port_mod *opm;
- list_init(replies);
- list_push_back(replies, &msg->list_node);
+ b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0);
+ opm = ofpbuf_put_zeros(b, sizeof *opm);
+ opm->port_no = ofputil_port_to_ofp11(pm->port_no);
+ memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
+ opm->config = htonl(pm->config & OFPPC11_ALL);
+ opm->mask = htonl(pm->mask & OFPPC11_ALL);
+ opm->advertise = netdev_port_features_to_ofp11(pm->advertise);
+ break;
+ }
+ default:
+ NOT_REACHED();
+ }
+
+ return b;
}
-void
-ofputil_append_flow_update(const struct ofputil_flow_update *update,
- struct list *replies)
+/* ofputil_table_mod */
+
+/* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in
+ * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
+enum ofperr
+ofputil_decode_table_mod(const struct ofp_header *oh,
+ struct ofputil_table_mod *pm)
{
- struct nx_flow_update_header *nfuh;
- struct ofpbuf *msg;
- size_t start_ofs;
+ enum ofpraw raw;
+ struct ofpbuf b;
- msg = ofpbuf_from_list(list_back(replies));
- start_ofs = msg->size;
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
- if (update->event == NXFME_ABBREV) {
- struct nx_flow_update_abbrev *nfua;
+ if (raw == OFPRAW_OFPT11_TABLE_MOD) {
+ const struct ofp11_table_mod *otm = b.data;
- nfua = ofpbuf_put_zeros(msg, sizeof *nfua);
- nfua->xid = update->xid;
+ pm->table_id = otm->table_id;
+ pm->config = ntohl(otm->config);
} else {
- struct nx_flow_update_full *nfuf;
- int match_len;
-
- ofpbuf_put_zeros(msg, sizeof *nfuf);
- match_len = nx_put_match(msg, update->match, htonll(0), htonll(0));
- ofpacts_put_openflow10(update->ofpacts, update->ofpacts_len, msg);
-
- nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf);
- nfuf->reason = htons(update->reason);
- nfuf->priority = htons(update->priority);
- nfuf->idle_timeout = htons(update->idle_timeout);
- nfuf->hard_timeout = htons(update->hard_timeout);
- nfuf->match_len = htons(match_len);
- nfuf->table_id = update->table_id;
- nfuf->cookie = update->cookie;
+ return OFPERR_OFPBRC_BAD_TYPE;
}
- nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh);
- nfuh->length = htons(msg->size - start_ofs);
- nfuh->event = htons(update->event);
-
- ofpmp_postappend(replies, start_ofs);
+ return 0;
}
-\f
+
+/* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow
+ * message suitable for 'protocol', and returns that encoded form in a buffer
+ * owned by the caller. */
struct ofpbuf *
-ofputil_encode_packet_out(const struct ofputil_packet_out *po,
- enum ofputil_protocol protocol)
+ofputil_encode_table_mod(const struct ofputil_table_mod *pm,
+ enum ofputil_protocol protocol)
{
enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
- struct ofpbuf *msg;
- size_t size;
-
- size = po->ofpacts_len;
- if (po->buffer_id == UINT32_MAX) {
- size += po->packet_len;
- }
+ struct ofpbuf *b;
switch (ofp_version) {
case OFP10_VERSION: {
- struct ofp10_packet_out *opo;
- size_t actions_ofs;
-
- msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size);
- ofpbuf_put_zeros(msg, sizeof *opo);
- actions_ofs = msg->size;
- ofpacts_put_openflow10(po->ofpacts, po->ofpacts_len, msg);
-
- opo = msg->l3;
- opo->buffer_id = htonl(po->buffer_id);
- opo->in_port = htons(po->in_port);
- opo->actions_len = htons(msg->size - actions_ofs);
+ ovs_fatal(0, "table mod needs OpenFlow 1.1 or later "
+ "(\'-O OpenFlow11\')");
break;
}
-
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION: {
- struct ofp11_packet_out *opo;
- size_t len;
-
- msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size);
- ofpbuf_put_zeros(msg, sizeof *opo);
- len = ofpacts_put_openflow11_actions(po->ofpacts, po->ofpacts_len, msg);
+ struct ofp11_table_mod *otm;
- opo = msg->l3;
- opo->buffer_id = htonl(po->buffer_id);
- opo->in_port = ofputil_port_to_ofp11(po->in_port);
- opo->actions_len = htons(len);
+ b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0);
+ otm = ofpbuf_put_zeros(b, sizeof *otm);
+ otm->table_id = pm->table_id;
+ otm->config = htonl(pm->config);
break;
}
-
default:
NOT_REACHED();
}
- if (po->buffer_id == UINT32_MAX) {
- ofpbuf_put(msg, po->packet, po->packet_len);
- }
-
- ofpmsg_update_length(msg);
-
- return msg;
+ return b;
}
\f
-/* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */
-struct ofpbuf *
-make_echo_request(enum ofp_version ofp_version)
-{
- return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version,
- htonl(0), 0);
-}
+/* ofputil_role_request */
-/* Creates and returns an OFPT_ECHO_REPLY message matching the
- * OFPT_ECHO_REQUEST message in 'rq'. */
-struct ofpbuf *
-make_echo_reply(const struct ofp_header *rq)
+/* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into
+ * an abstract form in '*rr'. Returns 0 if successful, otherwise an
+ * OFPERR_* value. */
+enum ofperr
+ofputil_decode_role_message(const struct ofp_header *oh,
+ struct ofputil_role_request *rr)
{
- struct ofpbuf rq_buf;
- struct ofpbuf *reply;
+ struct ofpbuf b;
+ enum ofpraw raw;
- ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length));
- ofpraw_pull_assert(&rq_buf);
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
- reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size);
- ofpbuf_put(reply, rq_buf.data, rq_buf.size);
- return reply;
+ if (raw == OFPRAW_OFPT12_ROLE_REQUEST ||
+ raw == OFPRAW_OFPT12_ROLE_REPLY) {
+ const struct ofp12_role_request *orr = b.l3;
+
+ if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) &&
+ orr->role != htonl(OFPCR12_ROLE_EQUAL) &&
+ orr->role != htonl(OFPCR12_ROLE_MASTER) &&
+ orr->role != htonl(OFPCR12_ROLE_SLAVE)) {
+ return OFPERR_OFPRRFC_BAD_ROLE;
+ }
+
+ rr->role = ntohl(orr->role);
+ if (raw == OFPRAW_OFPT12_ROLE_REQUEST
+ ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE)
+ : orr->generation_id == OVS_BE64_MAX) {
+ rr->have_generation_id = false;
+ rr->generation_id = 0;
+ } else {
+ rr->have_generation_id = true;
+ rr->generation_id = ntohll(orr->generation_id);
+ }
+ } else if (raw == OFPRAW_NXT_ROLE_REQUEST ||
+ raw == OFPRAW_NXT_ROLE_REPLY) {
+ const struct nx_role_request *nrr = b.l3;
+
+ BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL);
+ BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER);
+ BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE);
+
+ if (nrr->role != htonl(NX_ROLE_OTHER) &&
+ nrr->role != htonl(NX_ROLE_MASTER) &&
+ nrr->role != htonl(NX_ROLE_SLAVE)) {
+ return OFPERR_OFPRRFC_BAD_ROLE;
+ }
+
+ rr->role = ntohl(nrr->role) + 1;
+ rr->have_generation_id = false;
+ rr->generation_id = 0;
+ } else {
+ NOT_REACHED();
+ }
+
+ return 0;
}
+/* Returns an encoded form of a role reply suitable for the "request" in a
+ * buffer owned by the caller. */
struct ofpbuf *
-ofputil_encode_barrier_request(enum ofp_version ofp_version)
+ofputil_encode_role_reply(const struct ofp_header *request,
+ const struct ofputil_role_request *rr)
{
- enum ofpraw type;
+ struct ofpbuf *buf;
+ enum ofpraw raw;
- switch (ofp_version) {
- case OFP13_VERSION:
- case OFP12_VERSION:
- case OFP11_VERSION:
- type = OFPRAW_OFPT11_BARRIER_REQUEST;
- break;
+ raw = ofpraw_decode_assert(request);
+ if (raw == OFPRAW_OFPT12_ROLE_REQUEST) {
+ struct ofp12_role_request *orr;
- case OFP10_VERSION:
- type = OFPRAW_OFPT10_BARRIER_REQUEST;
- break;
+ buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0);
+ orr = ofpbuf_put_zeros(buf, sizeof *orr);
- default:
+ orr->role = htonl(rr->role);
+ orr->generation_id = htonll(rr->have_generation_id
+ ? rr->generation_id
+ : UINT64_MAX);
+ } else if (raw == OFPRAW_NXT_ROLE_REQUEST) {
+ struct nx_role_request *nrr;
+
+ BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1);
+ BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1);
+ BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1);
+
+ buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0);
+ nrr = ofpbuf_put_zeros(buf, sizeof *nrr);
+ nrr->role = htonl(rr->role - 1);
+ } else {
NOT_REACHED();
}
- return ofpraw_alloc(type, ofp_version, 0);
+ return buf;
+}
+\f
+struct ofpbuf *
+ofputil_encode_role_status(const struct ofputil_role_status *status,
+ enum ofputil_protocol protocol)
+{
+ struct ofpbuf *buf;
+ enum ofp_version version;
+ struct ofp14_role_status *rstatus;
+
+ version = ofputil_protocol_to_ofp_version(protocol);
+ buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), 0);
+ rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus);
+ rstatus->role = htonl(status->role);
+ rstatus->reason = status->reason;
+ rstatus->generation_id = htonll(status->generation_id);
+
+ return buf;
}
-const char *
-ofputil_frag_handling_to_string(enum ofp_config_flags flags)
+enum ofperr
+ofputil_decode_role_status(const struct ofp_header *oh,
+ struct ofputil_role_status *rs)
{
- switch (flags & OFPC_FRAG_MASK) {
- case OFPC_FRAG_NORMAL: return "normal";
- case OFPC_FRAG_DROP: return "drop";
- case OFPC_FRAG_REASM: return "reassemble";
- case OFPC_FRAG_NX_MATCH: return "nx-match";
+ struct ofpbuf b;
+ enum ofpraw raw;
+ const struct ofp14_role_status *r;
+
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+ ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS);
+
+ r = b.l3;
+ if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) &&
+ r->role != htonl(OFPCR12_ROLE_EQUAL) &&
+ r->role != htonl(OFPCR12_ROLE_MASTER) &&
+ r->role != htonl(OFPCR12_ROLE_SLAVE)) {
+ return OFPERR_OFPRRFC_BAD_ROLE;
}
- NOT_REACHED();
+ rs->role = ntohl(r->role);
+ rs->generation_id = ntohll(r->generation_id);
+ rs->reason = r->reason;
+
+ return 0;
}
-bool
-ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags)
-{
- if (!strcasecmp(s, "normal")) {
- *flags = OFPC_FRAG_NORMAL;
- } else if (!strcasecmp(s, "drop")) {
- *flags = OFPC_FRAG_DROP;
- } else if (!strcasecmp(s, "reassemble")) {
- *flags = OFPC_FRAG_REASM;
- } else if (!strcasecmp(s, "nx-match")) {
- *flags = OFPC_FRAG_NX_MATCH;
- } else {
- return false;
+/* Table stats. */
+
+static void
+ofputil_put_ofp10_table_stats(const struct ofp12_table_stats *in,
+ struct ofpbuf *buf)
+{
+ struct wc_map {
+ enum ofp10_flow_wildcards wc10;
+ enum oxm12_ofb_match_fields mf12;
+ };
+
+ static const struct wc_map wc_map[] = {
+ { OFPFW10_IN_PORT, OFPXMT12_OFB_IN_PORT },
+ { OFPFW10_DL_VLAN, OFPXMT12_OFB_VLAN_VID },
+ { OFPFW10_DL_SRC, OFPXMT12_OFB_ETH_SRC },
+ { OFPFW10_DL_DST, OFPXMT12_OFB_ETH_DST},
+ { OFPFW10_DL_TYPE, OFPXMT12_OFB_ETH_TYPE },
+ { OFPFW10_NW_PROTO, OFPXMT12_OFB_IP_PROTO },
+ { OFPFW10_TP_SRC, OFPXMT12_OFB_TCP_SRC },
+ { OFPFW10_TP_DST, OFPXMT12_OFB_TCP_DST },
+ { OFPFW10_NW_SRC_MASK, OFPXMT12_OFB_IPV4_SRC },
+ { OFPFW10_NW_DST_MASK, OFPXMT12_OFB_IPV4_DST },
+ { OFPFW10_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP },
+ { OFPFW10_NW_TOS, OFPXMT12_OFB_IP_DSCP },
+ };
+
+ struct ofp10_table_stats *out;
+ const struct wc_map *p;
+
+ out = ofpbuf_put_zeros(buf, sizeof *out);
+ out->table_id = in->table_id;
+ ovs_strlcpy(out->name, in->name, sizeof out->name);
+ out->wildcards = 0;
+ for (p = wc_map; p < &wc_map[ARRAY_SIZE(wc_map)]; p++) {
+ if (in->wildcards & htonll(1ULL << p->mf12)) {
+ out->wildcards |= htonl(p->wc10);
+ }
}
- return true;
+ out->max_entries = in->max_entries;
+ out->active_count = in->active_count;
+ put_32aligned_be64(&out->lookup_count, in->lookup_count);
+ put_32aligned_be64(&out->matched_count, in->matched_count);
}
-/* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0
- * port number and stores the latter in '*ofp10_port', for the purpose of
- * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful,
- * otherwise an OFPERR_* number.
- *
- * See the definition of OFP11_MAX for an explanation of the mapping. */
-enum ofperr
-ofputil_port_from_ofp11(ovs_be32 ofp11_port, uint16_t *ofp10_port)
+static ovs_be32
+oxm12_to_ofp11_flow_match_fields(ovs_be64 oxm12)
{
- uint32_t ofp11_port_h = ntohl(ofp11_port);
+ struct map {
+ enum ofp11_flow_match_fields fmf11;
+ enum oxm12_ofb_match_fields mf12;
+ };
- if (ofp11_port_h < OFPP_MAX) {
- *ofp10_port = ofp11_port_h;
- return 0;
- } else if (ofp11_port_h >= OFPP11_MAX) {
- *ofp10_port = ofp11_port_h - OFPP11_OFFSET;
- return 0;
- } else {
- VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported "
- "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32,
- ofp11_port_h, OFPP_MAX - 1,
- (uint32_t) OFPP11_MAX, UINT32_MAX);
- return OFPERR_OFPBAC_BAD_OUT_PORT;
+ static const struct map map[] = {
+ { OFPFMF11_IN_PORT, OFPXMT12_OFB_IN_PORT },
+ { OFPFMF11_DL_VLAN, OFPXMT12_OFB_VLAN_VID },
+ { OFPFMF11_DL_VLAN_PCP, OFPXMT12_OFB_VLAN_PCP },
+ { OFPFMF11_DL_TYPE, OFPXMT12_OFB_ETH_TYPE },
+ { OFPFMF11_NW_TOS, OFPXMT12_OFB_IP_DSCP },
+ { OFPFMF11_NW_PROTO, OFPXMT12_OFB_IP_PROTO },
+ { OFPFMF11_TP_SRC, OFPXMT12_OFB_TCP_SRC },
+ { OFPFMF11_TP_DST, OFPXMT12_OFB_TCP_DST },
+ { OFPFMF11_MPLS_LABEL, OFPXMT12_OFB_MPLS_LABEL },
+ { OFPFMF11_MPLS_TC, OFPXMT12_OFB_MPLS_TC },
+ /* I don't know what OFPFMF11_TYPE means. */
+ { OFPFMF11_DL_SRC, OFPXMT12_OFB_ETH_SRC },
+ { OFPFMF11_DL_DST, OFPXMT12_OFB_ETH_DST },
+ { OFPFMF11_NW_SRC, OFPXMT12_OFB_IPV4_SRC },
+ { OFPFMF11_NW_DST, OFPXMT12_OFB_IPV4_DST },
+ { OFPFMF11_METADATA, OFPXMT12_OFB_METADATA },
+ };
+
+ const struct map *p;
+ uint32_t fmf11;
+
+ fmf11 = 0;
+ for (p = map; p < &map[ARRAY_SIZE(map)]; p++) {
+ if (oxm12 & htonll(1ULL << p->mf12)) {
+ fmf11 |= p->fmf11;
+ }
}
+ return htonl(fmf11);
}
-/* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port
- * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages.
- *
- * See the definition of OFP11_MAX for an explanation of the mapping. */
-ovs_be32
-ofputil_port_to_ofp11(uint16_t ofp10_port)
+static void
+ofputil_put_ofp11_table_stats(const struct ofp12_table_stats *in,
+ struct ofpbuf *buf)
{
- return htonl(ofp10_port < OFPP_MAX
- ? ofp10_port
- : ofp10_port + OFPP11_OFFSET);
+ struct ofp11_table_stats *out;
+
+ out = ofpbuf_put_zeros(buf, sizeof *out);
+ out->table_id = in->table_id;
+ ovs_strlcpy(out->name, in->name, sizeof out->name);
+ out->wildcards = oxm12_to_ofp11_flow_match_fields(in->wildcards);
+ out->match = oxm12_to_ofp11_flow_match_fields(in->match);
+ out->instructions = in->instructions;
+ out->write_actions = in->write_actions;
+ out->apply_actions = in->apply_actions;
+ out->config = in->config;
+ out->max_entries = in->max_entries;
+ out->active_count = in->active_count;
+ out->lookup_count = in->lookup_count;
+ out->matched_count = in->matched_count;
}
-/* Checks that 'port' is a valid output port for the OFPAT10_OUTPUT action, given
- * that the switch will never have more than 'max_ports' ports. Returns 0 if
- * 'port' is valid, otherwise an OpenFlow return code. */
-enum ofperr
-ofputil_check_output_port(uint16_t port, int max_ports)
+static void
+ofputil_put_ofp12_table_stats(const struct ofp12_table_stats *in,
+ struct ofpbuf *buf)
{
- switch (port) {
- case OFPP_IN_PORT:
- case OFPP_TABLE:
- case OFPP_NORMAL:
- case OFPP_FLOOD:
- case OFPP_ALL:
- case OFPP_CONTROLLER:
- case OFPP_NONE:
- case OFPP_LOCAL:
- return 0;
+ struct ofp12_table_stats *out = ofpbuf_put(buf, in, sizeof *in);
- default:
- if (port < max_ports) {
- return 0;
- }
- return OFPERR_OFPBAC_BAD_OUT_PORT;
- }
+ /* Trim off OF1.3-only capabilities. */
+ out->match &= htonll(OFPXMT12_MASK);
+ out->wildcards &= htonll(OFPXMT12_MASK);
+ out->write_setfields &= htonll(OFPXMT12_MASK);
+ out->apply_setfields &= htonll(OFPXMT12_MASK);
}
-#define OFPUTIL_NAMED_PORTS \
- OFPUTIL_NAMED_PORT(IN_PORT) \
- OFPUTIL_NAMED_PORT(TABLE) \
- OFPUTIL_NAMED_PORT(NORMAL) \
- OFPUTIL_NAMED_PORT(FLOOD) \
- OFPUTIL_NAMED_PORT(ALL) \
- OFPUTIL_NAMED_PORT(CONTROLLER) \
- OFPUTIL_NAMED_PORT(LOCAL) \
- OFPUTIL_NAMED_PORT(ANY)
+static void
+ofputil_put_ofp13_table_stats(const struct ofp12_table_stats *in,
+ struct ofpbuf *buf)
+{
+ struct ofp13_table_stats *out;
-/* For backwards compatibility, so that "none" is recognized as OFPP_ANY */
-#define OFPUTIL_NAMED_PORTS_WITH_NONE \
- OFPUTIL_NAMED_PORTS \
- OFPUTIL_NAMED_PORT(NONE)
+ /* OF 1.3 splits table features off the ofp_table_stats,
+ * so there is not much here. */
-/* Stores the port number represented by 's' into '*portp'. 's' may be an
- * integer or, for reserved ports, the standard OpenFlow name for the port
- * (e.g. "LOCAL").
- *
- * Returns true if successful, false if 's' is not a valid OpenFlow port number
- * or name. The caller should issue an error message in this case, because
- * this function usually does not. (This gives the caller an opportunity to
- * look up the port name another way, e.g. by contacting the switch and listing
- * the names of all its ports).
- *
- * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset
- * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit
- * range as described in include/openflow/openflow-1.1.h. */
-bool
-ofputil_port_from_string(const char *s, uint16_t *portp)
+ out = ofpbuf_put_uninit(buf, sizeof *out);
+ out->table_id = in->table_id;
+ out->active_count = in->active_count;
+ out->lookup_count = in->lookup_count;
+ out->matched_count = in->matched_count;
+}
+
+struct ofpbuf *
+ofputil_encode_table_stats_reply(const struct ofp12_table_stats stats[], int n,
+ const struct ofp_header *request)
{
- unsigned int port32;
+ struct ofpbuf *reply;
+ int i;
- *portp = 0;
- if (str_to_uint(s, 10, &port32)) {
- if (port32 < OFPP_MAX) {
- *portp = port32;
- return true;
- } else if (port32 < OFPP_FIRST_RESV) {
- VLOG_WARN("port %u is a reserved OF1.0 port number that will "
- "be translated to %u when talking to an OF1.1 or "
- "later controller", port32, port32 + OFPP11_OFFSET);
- *portp = port32;
- return true;
- } else if (port32 <= OFPP_LAST_RESV) {
- struct ds msg;
+ reply = ofpraw_alloc_stats_reply(request, n * sizeof *stats);
- ds_init(&msg);
- ofputil_format_port(port32, &msg);
- VLOG_WARN_ONCE("referring to port %s as %u is deprecated for "
- "compatibility with future versions of OpenFlow",
- ds_cstr(&msg), port32);
- ds_destroy(&msg);
+ for (i = 0; i < n; i++) {
+ switch ((enum ofp_version) request->version) {
+ case OFP10_VERSION:
+ ofputil_put_ofp10_table_stats(&stats[i], reply);
+ break;
- *portp = port32;
- return true;
- } else if (port32 < OFPP11_MAX) {
- VLOG_WARN("port %u is outside the supported range 0 through "
- "%"PRIx16" or 0x%x through 0x%"PRIx32, port32,
- UINT16_MAX, (unsigned int) OFPP11_MAX, UINT32_MAX);
- return false;
- } else {
- *portp = port32 - OFPP11_OFFSET;
- return true;
- }
- } else {
- struct pair {
- const char *name;
- uint16_t value;
- };
- static const struct pair pairs[] = {
-#define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME},
- OFPUTIL_NAMED_PORTS_WITH_NONE
-#undef OFPUTIL_NAMED_PORT
- };
- const struct pair *p;
+ case OFP11_VERSION:
+ ofputil_put_ofp11_table_stats(&stats[i], reply);
+ break;
- for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) {
- if (!strcasecmp(s, p->name)) {
- *portp = p->value;
- return true;
- }
+ case OFP12_VERSION:
+ ofputil_put_ofp12_table_stats(&stats[i], reply);
+ break;
+
+ case OFP13_VERSION:
+ ofputil_put_ofp13_table_stats(&stats[i], reply);
+ break;
+
+ default:
+ NOT_REACHED();
}
- return false;
}
+
+ return reply;
}
+\f
+/* ofputil_flow_monitor_request */
-/* Appends to 's' a string representation of the OpenFlow port number 'port'.
- * Most ports' string representation is just the port number, but for special
- * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */
-void
-ofputil_format_port(uint16_t port, struct ds *s)
+/* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract
+ * ofputil_flow_monitor_request in 'rq'.
+ *
+ * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow
+ * message. Calling this function multiple times for a single 'msg' iterates
+ * through the requests. The caller must initially leave 'msg''s layer
+ * pointers null and not modify them between calls.
+ *
+ * Returns 0 if successful, EOF if no requests were left in this 'msg',
+ * otherwise an OFPERR_* value. */
+int
+ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq,
+ struct ofpbuf *msg)
{
- const char *name;
+ struct nx_flow_monitor_request *nfmr;
+ uint16_t flags;
- switch (port) {
-#define OFPUTIL_NAMED_PORT(NAME) case OFPP_##NAME: name = #NAME; break;
- OFPUTIL_NAMED_PORTS
-#undef OFPUTIL_NAMED_PORT
+ if (!msg->l2) {
+ msg->l2 = msg->data;
+ ofpraw_pull_assert(msg);
+ }
- default:
- ds_put_format(s, "%"PRIu16, port);
- return;
+ if (!msg->size) {
+ return EOF;
}
- ds_put_cstr(s, name);
-}
-/* Given a buffer 'b' that contains an array of OpenFlow ports of type
- * 'ofp_version', tries to pull the first element from the array. If
- * successful, initializes '*pp' with an abstract representation of the
- * port and returns 0. If no ports remain to be decoded, returns EOF.
- * On an error, returns a positive OFPERR_* value. */
-int
-ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b,
- struct ofputil_phy_port *pp)
-{
- switch (ofp_version) {
- case OFP10_VERSION: {
- const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp);
- return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF;
+ nfmr = ofpbuf_try_pull(msg, sizeof *nfmr);
+ if (!nfmr) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIuSIZE" "
+ "leftover bytes at end", msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
}
- case OFP11_VERSION:
- case OFP12_VERSION:
- case OFP13_VERSION: {
- const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op);
- return op ? ofputil_decode_ofp11_port(pp, op) : EOF;
+
+ flags = ntohs(nfmr->flags);
+ if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY))
+ || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE
+ | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16,
+ flags);
+ return OFPERR_NXBRC_FM_BAD_FLAGS;
}
- default:
- NOT_REACHED();
+
+ if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) {
+ return OFPERR_NXBRC_MUST_BE_ZERO;
}
+
+ rq->id = ntohl(nfmr->id);
+ rq->flags = flags;
+ rq->out_port = u16_to_ofp(ntohs(nfmr->out_port));
+ rq->table_id = nfmr->table_id;
+
+ return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL);
}
-/* Given a buffer 'b' that contains an array of OpenFlow ports of type
- * 'ofp_version', returns the number of elements. */
-size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *b)
+void
+ofputil_append_flow_monitor_request(
+ const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg)
{
- return b->size / ofputil_get_phy_port_size(ofp_version);
+ struct nx_flow_monitor_request *nfmr;
+ size_t start_ofs;
+ int match_len;
+
+ if (!msg->size) {
+ ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg);
+ }
+
+ start_ofs = msg->size;
+ ofpbuf_put_zeros(msg, sizeof *nfmr);
+ match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0));
+
+ nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr);
+ nfmr->id = htonl(rq->id);
+ nfmr->flags = htons(rq->flags);
+ nfmr->out_port = htons(ofp_to_u16(rq->out_port));
+ nfmr->match_len = htons(match_len);
+ nfmr->table_id = rq->table_id;
}
-/* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if
- * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1 if
- * 'name' is not the name of any action.
+/* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg'
+ * into an abstract ofputil_flow_update in 'update'. The caller must have
+ * initialized update->match to point to space allocated for a match.
+ *
+ * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's
+ * actions (except for NXFME_ABBREV, which never includes actions). The caller
+ * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts'
+ * will point into the 'ofpacts' buffer.
*
- * ofp-util.def lists the mapping from names to action. */
+ * Multiple flow updates can be packed into a single OpenFlow message. Calling
+ * this function multiple times for a single 'msg' iterates through the
+ * updates. The caller must initially leave 'msg''s layer pointers null and
+ * not modify them between calls.
+ *
+ * Returns 0 if successful, EOF if no updates were left in this 'msg',
+ * otherwise an OFPERR_* value. */
int
-ofputil_action_code_from_name(const char *name)
+ofputil_decode_flow_update(struct ofputil_flow_update *update,
+ struct ofpbuf *msg, struct ofpbuf *ofpacts)
{
- static const char *names[OFPUTIL_N_ACTIONS] = {
- NULL,
-#define OFPAT10_ACTION(ENUM, STRUCT, NAME) NAME,
-#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME,
-#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME,
-#include "ofp-util.def"
- };
-
- const char **p;
+ struct nx_flow_update_header *nfuh;
+ unsigned int length;
+ struct ofp_header *oh;
- for (p = names; p < &names[ARRAY_SIZE(names)]; p++) {
- if (*p && !strcasecmp(name, *p)) {
- return p - names;
- }
+ if (!msg->l2) {
+ msg->l2 = msg->data;
+ ofpraw_pull_assert(msg);
}
- return -1;
-}
-
-/* Appends an action of the type specified by 'code' to 'buf' and returns the
- * action. Initializes the parts of 'action' that identify it as having type
- * <ENUM> and length 'sizeof *action' and zeros the rest. For actions that
- * have variable length, the length used and cleared is that of struct
- * <STRUCT>. */
-void *
-ofputil_put_action(enum ofputil_action_code code, struct ofpbuf *buf)
-{
- switch (code) {
- case OFPUTIL_ACTION_INVALID:
- NOT_REACHED();
-#define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
- case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
-#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
- case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
-#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
- case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
-#include "ofp-util.def"
+ if (!msg->size) {
+ return EOF;
}
- NOT_REACHED();
-}
-#define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
- void \
- ofputil_init_##ENUM(struct STRUCT *s) \
- { \
- memset(s, 0, sizeof *s); \
- s->type = htons(ENUM); \
- s->len = htons(sizeof *s); \
- } \
- \
- struct STRUCT * \
- ofputil_put_##ENUM(struct ofpbuf *buf) \
- { \
- struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
- ofputil_init_##ENUM(s); \
- return s; \
+ if (msg->size < sizeof(struct nx_flow_update_header)) {
+ goto bad_len;
}
-#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
- OFPAT10_ACTION(ENUM, STRUCT, NAME)
-#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
- void \
- ofputil_init_##ENUM(struct STRUCT *s) \
- { \
- memset(s, 0, sizeof *s); \
- s->type = htons(OFPAT10_VENDOR); \
- s->len = htons(sizeof *s); \
- s->vendor = htonl(NX_VENDOR_ID); \
- s->subtype = htons(ENUM); \
- } \
- \
- struct STRUCT * \
- ofputil_put_##ENUM(struct ofpbuf *buf) \
- { \
- struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
- ofputil_init_##ENUM(s); \
- return s; \
+
+ oh = msg->l2;
+
+ nfuh = msg->data;
+ update->event = ntohs(nfuh->event);
+ length = ntohs(nfuh->length);
+ if (length > msg->size || length % 8) {
+ goto bad_len;
}
-#include "ofp-util.def"
-static void
-ofputil_normalize_match__(struct match *match, bool may_log)
-{
- enum {
- MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */
- MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */
- MAY_NW_PROTO = 1 << 2, /* nw_proto */
- MAY_IPVx = 1 << 3, /* tos, frag, ttl */
- MAY_ARP_SHA = 1 << 4, /* arp_sha */
- MAY_ARP_THA = 1 << 5, /* arp_tha */
- MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */
- MAY_ND_TARGET = 1 << 7, /* nd_target */
- MAY_MPLS = 1 << 8, /* mpls label and tc */
- } may_match;
+ if (update->event == NXFME_ABBREV) {
+ struct nx_flow_update_abbrev *nfua;
- struct flow_wildcards wc;
+ if (length != sizeof *nfua) {
+ goto bad_len;
+ }
- /* Figure out what fields may be matched. */
- if (match->flow.dl_type == htons(ETH_TYPE_IP)) {
- may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR;
- if (match->flow.nw_proto == IPPROTO_TCP ||
- match->flow.nw_proto == IPPROTO_UDP ||
- match->flow.nw_proto == IPPROTO_ICMP) {
- may_match |= MAY_TP_ADDR;
+ nfua = ofpbuf_pull(msg, sizeof *nfua);
+ update->xid = nfua->xid;
+ return 0;
+ } else if (update->event == NXFME_ADDED
+ || update->event == NXFME_DELETED
+ || update->event == NXFME_MODIFIED) {
+ struct nx_flow_update_full *nfuf;
+ unsigned int actions_len;
+ unsigned int match_len;
+ enum ofperr error;
+
+ if (length < sizeof *nfuf) {
+ goto bad_len;
}
- } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) {
- may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6;
- if (match->flow.nw_proto == IPPROTO_TCP ||
- match->flow.nw_proto == IPPROTO_UDP) {
- may_match |= MAY_TP_ADDR;
- } else if (match->flow.nw_proto == IPPROTO_ICMPV6) {
- may_match |= MAY_TP_ADDR;
- if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) {
- may_match |= MAY_ND_TARGET | MAY_ARP_SHA;
- } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) {
- may_match |= MAY_ND_TARGET | MAY_ARP_THA;
- }
+
+ nfuf = ofpbuf_pull(msg, sizeof *nfuf);
+ match_len = ntohs(nfuf->match_len);
+ if (sizeof *nfuf + match_len > length) {
+ goto bad_len;
}
- } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) ||
- match->flow.dl_type == htons(ETH_TYPE_RARP)) {
- may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA;
- } else if (eth_type_mpls(match->flow.dl_type)) {
- may_match = MAY_MPLS;
+
+ update->reason = ntohs(nfuf->reason);
+ update->idle_timeout = ntohs(nfuf->idle_timeout);
+ update->hard_timeout = ntohs(nfuf->hard_timeout);
+ update->table_id = nfuf->table_id;
+ update->cookie = nfuf->cookie;
+ update->priority = ntohs(nfuf->priority);
+
+ error = nx_pull_match(msg, match_len, update->match, NULL, NULL);
+ if (error) {
+ return error;
+ }
+
+ actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8);
+ error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version,
+ ofpacts);
+ if (error) {
+ return error;
+ }
+
+ update->ofpacts = ofpacts->data;
+ update->ofpacts_len = ofpacts->size;
+ return 0;
} else {
- may_match = 0;
+ VLOG_WARN_RL(&bad_ofmsg_rl,
+ "NXST_FLOW_MONITOR reply has bad event %"PRIu16,
+ ntohs(nfuh->event));
+ return OFPERR_NXBRC_FM_BAD_EVENT;
}
- /* Clear the fields that may not be matched. */
- wc = match->wc;
- if (!(may_match & MAY_NW_ADDR)) {
+bad_len:
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIuSIZE" "
+ "leftover bytes at end", msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
+}
+
+uint32_t
+ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh)
+{
+ const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh);
+
+ return ntohl(cancel->id);
+}
+
+struct ofpbuf *
+ofputil_encode_flow_monitor_cancel(uint32_t id)
+{
+ struct nx_flow_monitor_cancel *nfmc;
+ struct ofpbuf *msg;
+
+ msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0);
+ nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc);
+ nfmc->id = htonl(id);
+ return msg;
+}
+
+void
+ofputil_start_flow_update(struct list *replies)
+{
+ struct ofpbuf *msg;
+
+ msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION,
+ htonl(0), 1024);
+
+ list_init(replies);
+ list_push_back(replies, &msg->list_node);
+}
+
+void
+ofputil_append_flow_update(const struct ofputil_flow_update *update,
+ struct list *replies)
+{
+ struct nx_flow_update_header *nfuh;
+ struct ofpbuf *msg;
+ size_t start_ofs;
+ enum ofp_version version;
+
+ msg = ofpbuf_from_list(list_back(replies));
+ start_ofs = msg->size;
+ version = ((struct ofp_header *)msg->l2)->version;
+
+ if (update->event == NXFME_ABBREV) {
+ struct nx_flow_update_abbrev *nfua;
+
+ nfua = ofpbuf_put_zeros(msg, sizeof *nfua);
+ nfua->xid = update->xid;
+ } else {
+ struct nx_flow_update_full *nfuf;
+ int match_len;
+
+ ofpbuf_put_zeros(msg, sizeof *nfuf);
+ match_len = nx_put_match(msg, update->match, htonll(0), htonll(0));
+ ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg,
+ version);
+ nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf);
+ nfuf->reason = htons(update->reason);
+ nfuf->priority = htons(update->priority);
+ nfuf->idle_timeout = htons(update->idle_timeout);
+ nfuf->hard_timeout = htons(update->hard_timeout);
+ nfuf->match_len = htons(match_len);
+ nfuf->table_id = update->table_id;
+ nfuf->cookie = update->cookie;
+ }
+
+ nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh);
+ nfuh->length = htons(msg->size - start_ofs);
+ nfuh->event = htons(update->event);
+
+ ofpmp_postappend(replies, start_ofs);
+}
+\f
+struct ofpbuf *
+ofputil_encode_packet_out(const struct ofputil_packet_out *po,
+ enum ofputil_protocol protocol)
+{
+ enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
+ struct ofpbuf *msg;
+ size_t size;
+
+ size = po->ofpacts_len;
+ if (po->buffer_id == UINT32_MAX) {
+ size += po->packet_len;
+ }
+
+ switch (ofp_version) {
+ case OFP10_VERSION: {
+ struct ofp10_packet_out *opo;
+ size_t actions_ofs;
+
+ msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size);
+ ofpbuf_put_zeros(msg, sizeof *opo);
+ actions_ofs = msg->size;
+ ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
+ ofp_version);
+
+ opo = msg->l3;
+ opo->buffer_id = htonl(po->buffer_id);
+ opo->in_port = htons(ofp_to_u16(po->in_port));
+ opo->actions_len = htons(msg->size - actions_ofs);
+ break;
+ }
+
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ struct ofp11_packet_out *opo;
+ size_t len;
+
+ msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size);
+ ofpbuf_put_zeros(msg, sizeof *opo);
+ len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
+ ofp_version);
+ opo = msg->l3;
+ opo->buffer_id = htonl(po->buffer_id);
+ opo->in_port = ofputil_port_to_ofp11(po->in_port);
+ opo->actions_len = htons(len);
+ break;
+ }
+
+ default:
+ NOT_REACHED();
+ }
+
+ if (po->buffer_id == UINT32_MAX) {
+ ofpbuf_put(msg, po->packet, po->packet_len);
+ }
+
+ ofpmsg_update_length(msg);
+
+ return msg;
+}
+\f
+/* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */
+struct ofpbuf *
+make_echo_request(enum ofp_version ofp_version)
+{
+ return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version,
+ htonl(0), 0);
+}
+
+/* Creates and returns an OFPT_ECHO_REPLY message matching the
+ * OFPT_ECHO_REQUEST message in 'rq'. */
+struct ofpbuf *
+make_echo_reply(const struct ofp_header *rq)
+{
+ struct ofpbuf rq_buf;
+ struct ofpbuf *reply;
+
+ ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length));
+ ofpraw_pull_assert(&rq_buf);
+
+ reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size);
+ ofpbuf_put(reply, rq_buf.data, rq_buf.size);
+ return reply;
+}
+
+struct ofpbuf *
+ofputil_encode_barrier_request(enum ofp_version ofp_version)
+{
+ enum ofpraw type;
+
+ switch (ofp_version) {
+ case OFP13_VERSION:
+ case OFP12_VERSION:
+ case OFP11_VERSION:
+ type = OFPRAW_OFPT11_BARRIER_REQUEST;
+ break;
+
+ case OFP10_VERSION:
+ type = OFPRAW_OFPT10_BARRIER_REQUEST;
+ break;
+
+ default:
+ NOT_REACHED();
+ }
+
+ return ofpraw_alloc(type, ofp_version, 0);
+}
+
+const char *
+ofputil_frag_handling_to_string(enum ofp_config_flags flags)
+{
+ switch (flags & OFPC_FRAG_MASK) {
+ case OFPC_FRAG_NORMAL: return "normal";
+ case OFPC_FRAG_DROP: return "drop";
+ case OFPC_FRAG_REASM: return "reassemble";
+ case OFPC_FRAG_NX_MATCH: return "nx-match";
+ }
+
+ NOT_REACHED();
+}
+
+bool
+ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags)
+{
+ if (!strcasecmp(s, "normal")) {
+ *flags = OFPC_FRAG_NORMAL;
+ } else if (!strcasecmp(s, "drop")) {
+ *flags = OFPC_FRAG_DROP;
+ } else if (!strcasecmp(s, "reassemble")) {
+ *flags = OFPC_FRAG_REASM;
+ } else if (!strcasecmp(s, "nx-match")) {
+ *flags = OFPC_FRAG_NX_MATCH;
+ } else {
+ return false;
+ }
+ return true;
+}
+
+/* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0
+ * port number and stores the latter in '*ofp10_port', for the purpose of
+ * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful,
+ * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'.
+ *
+ * See the definition of OFP11_MAX for an explanation of the mapping. */
+enum ofperr
+ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port)
+{
+ uint32_t ofp11_port_h = ntohl(ofp11_port);
+
+ if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) {
+ *ofp10_port = u16_to_ofp(ofp11_port_h);
+ return 0;
+ } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) {
+ *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET);
+ return 0;
+ } else {
+ *ofp10_port = OFPP_NONE;
+ VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported "
+ "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32,
+ ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1,
+ ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
+ return OFPERR_OFPBAC_BAD_OUT_PORT;
+ }
+}
+
+/* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port
+ * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages.
+ *
+ * See the definition of OFP11_MAX for an explanation of the mapping. */
+ovs_be32
+ofputil_port_to_ofp11(ofp_port_t ofp10_port)
+{
+ return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX)
+ ? ofp_to_u16(ofp10_port)
+ : ofp_to_u16(ofp10_port) + OFPP11_OFFSET);
+}
+
+#define OFPUTIL_NAMED_PORTS \
+ OFPUTIL_NAMED_PORT(IN_PORT) \
+ OFPUTIL_NAMED_PORT(TABLE) \
+ OFPUTIL_NAMED_PORT(NORMAL) \
+ OFPUTIL_NAMED_PORT(FLOOD) \
+ OFPUTIL_NAMED_PORT(ALL) \
+ OFPUTIL_NAMED_PORT(CONTROLLER) \
+ OFPUTIL_NAMED_PORT(LOCAL) \
+ OFPUTIL_NAMED_PORT(ANY)
+
+/* For backwards compatibility, so that "none" is recognized as OFPP_ANY */
+#define OFPUTIL_NAMED_PORTS_WITH_NONE \
+ OFPUTIL_NAMED_PORTS \
+ OFPUTIL_NAMED_PORT(NONE)
+
+/* Stores the port number represented by 's' into '*portp'. 's' may be an
+ * integer or, for reserved ports, the standard OpenFlow name for the port
+ * (e.g. "LOCAL").
+ *
+ * Returns true if successful, false if 's' is not a valid OpenFlow port number
+ * or name. The caller should issue an error message in this case, because
+ * this function usually does not. (This gives the caller an opportunity to
+ * look up the port name another way, e.g. by contacting the switch and listing
+ * the names of all its ports).
+ *
+ * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset
+ * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit
+ * range as described in include/openflow/openflow-1.1.h. */
+bool
+ofputil_port_from_string(const char *s, ofp_port_t *portp)
+{
+ uint32_t port32;
+
+ *portp = 0;
+ if (str_to_uint(s, 10, &port32)) {
+ if (port32 < ofp_to_u16(OFPP_MAX)) {
+ /* Pass. */
+ } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) {
+ VLOG_WARN("port %u is a reserved OF1.0 port number that will "
+ "be translated to %u when talking to an OF1.1 or "
+ "later controller", port32, port32 + OFPP11_OFFSET);
+ } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) {
+ char name[OFP_MAX_PORT_NAME_LEN];
+
+ ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name);
+ VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated "
+ "for compatibility with OpenFlow 1.1 and later",
+ name, port32);
+ } else if (port32 < ofp11_to_u32(OFPP11_MAX)) {
+ VLOG_WARN("port %u is outside the supported range 0 through "
+ "%"PRIx16" or 0x%x through 0x%"PRIx32, port32,
+ UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
+ return false;
+ } else {
+ port32 -= OFPP11_OFFSET;
+ }
+
+ *portp = u16_to_ofp(port32);
+ return true;
+ } else {
+ struct pair {
+ const char *name;
+ ofp_port_t value;
+ };
+ static const struct pair pairs[] = {
+#define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME},
+ OFPUTIL_NAMED_PORTS_WITH_NONE
+#undef OFPUTIL_NAMED_PORT
+ };
+ const struct pair *p;
+
+ for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) {
+ if (!strcasecmp(s, p->name)) {
+ *portp = p->value;
+ return true;
+ }
+ }
+ return false;
+ }
+}
+
+/* Appends to 's' a string representation of the OpenFlow port number 'port'.
+ * Most ports' string representation is just the port number, but for special
+ * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */
+void
+ofputil_format_port(ofp_port_t port, struct ds *s)
+{
+ char name[OFP_MAX_PORT_NAME_LEN];
+
+ ofputil_port_to_string(port, name, sizeof name);
+ ds_put_cstr(s, name);
+}
+
+/* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
+ * representation of OpenFlow port number 'port'. Most ports are represented
+ * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented
+ * by name, e.g. "LOCAL". */
+void
+ofputil_port_to_string(ofp_port_t port,
+ char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize)
+{
+ switch (port) {
+#define OFPUTIL_NAMED_PORT(NAME) \
+ case OFPP_##NAME: \
+ ovs_strlcpy(namebuf, #NAME, bufsize); \
+ break;
+ OFPUTIL_NAMED_PORTS
+#undef OFPUTIL_NAMED_PORT
+
+ default:
+ snprintf(namebuf, bufsize, "%"PRIu16, port);
+ break;
+ }
+}
+
+/* Stores the group id represented by 's' into '*group_idp'. 's' may be an
+ * integer or, for reserved group IDs, the standard OpenFlow name for the group
+ * (either "ANY" or "ALL").
+ *
+ * Returns true if successful, false if 's' is not a valid OpenFlow group ID or
+ * name. */
+bool
+ofputil_group_from_string(const char *s, uint32_t *group_idp)
+{
+ if (!strcasecmp(s, "any")) {
+ *group_idp = OFPG11_ANY;
+ } else if (!strcasecmp(s, "all")) {
+ *group_idp = OFPG11_ALL;
+ } else if (!str_to_uint(s, 10, group_idp)) {
+ VLOG_WARN("%s is not a valid group ID. (Valid group IDs are "
+ "32-bit nonnegative integers or the keywords ANY or "
+ "ALL.)", s);
+ return false;
+ }
+
+ return true;
+}
+
+/* Appends to 's' a string representation of the OpenFlow group ID 'group_id'.
+ * Most groups' string representation is just the number, but for special
+ * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */
+void
+ofputil_format_group(uint32_t group_id, struct ds *s)
+{
+ char name[MAX_GROUP_NAME_LEN];
+
+ ofputil_group_to_string(group_id, name, sizeof name);
+ ds_put_cstr(s, name);
+}
+
+
+/* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
+ * representation of OpenFlow group ID 'group_id'. Most group are represented
+ * as just their number, but special groups, e.g. OFPG11_ALL, are represented
+ * by name, e.g. "ALL". */
+void
+ofputil_group_to_string(uint32_t group_id,
+ char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize)
+{
+ switch (group_id) {
+ case OFPG11_ALL:
+ ovs_strlcpy(namebuf, "ALL", bufsize);
+ break;
+
+ case OFPG11_ANY:
+ ovs_strlcpy(namebuf, "ANY", bufsize);
+ break;
+
+ default:
+ snprintf(namebuf, bufsize, "%"PRIu32, group_id);
+ break;
+ }
+}
+
+/* Given a buffer 'b' that contains an array of OpenFlow ports of type
+ * 'ofp_version', tries to pull the first element from the array. If
+ * successful, initializes '*pp' with an abstract representation of the
+ * port and returns 0. If no ports remain to be decoded, returns EOF.
+ * On an error, returns a positive OFPERR_* value. */
+int
+ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b,
+ struct ofputil_phy_port *pp)
+{
+ switch (ofp_version) {
+ case OFP10_VERSION: {
+ const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp);
+ return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF;
+ }
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op);
+ return op ? ofputil_decode_ofp11_port(pp, op) : EOF;
+ }
+ default:
+ NOT_REACHED();
+ }
+}
+
+/* Given a buffer 'b' that contains an array of OpenFlow ports of type
+ * 'ofp_version', returns the number of elements. */
+size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *b)
+{
+ return b->size / ofputil_get_phy_port_size(ofp_version);
+}
+
+/* ofp-util.def lists the mapping from names to action. */
+static const char *const names[OFPUTIL_N_ACTIONS] = {
+ NULL,
+#define OFPAT10_ACTION(ENUM, STRUCT, NAME) NAME,
+#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME,
+#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME,
+#include "ofp-util.def"
+};
+
+/* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if
+ * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1
+ * if 'name' is not the name of any action. */
+int
+ofputil_action_code_from_name(const char *name)
+{
+ const char *const *p;
+
+ for (p = names; p < &names[ARRAY_SIZE(names)]; p++) {
+ if (*p && !strcasecmp(name, *p)) {
+ return p - names;
+ }
+ }
+ return -1;
+}
+
+/* Returns name corresponding to the 'enum ofputil_action_code',
+ * or "Unkonwn action", if the name is not available. */
+const char *
+ofputil_action_name_from_code(enum ofputil_action_code code)
+{
+ return code < (int)OFPUTIL_N_ACTIONS && names[code] ? names[code]
+ : "Unknown action";
+}
+
+/* Appends an action of the type specified by 'code' to 'buf' and returns the
+ * action. Initializes the parts of 'action' that identify it as having type
+ * <ENUM> and length 'sizeof *action' and zeros the rest. For actions that
+ * have variable length, the length used and cleared is that of struct
+ * <STRUCT>. */
+void *
+ofputil_put_action(enum ofputil_action_code code, struct ofpbuf *buf)
+{
+ switch (code) {
+ case OFPUTIL_ACTION_INVALID:
+ NOT_REACHED();
+
+#define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
+ case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
+#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
+ case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
+#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
+ case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
+#include "ofp-util.def"
+ }
+ NOT_REACHED();
+}
+
+#define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
+ void \
+ ofputil_init_##ENUM(struct STRUCT *s) \
+ { \
+ memset(s, 0, sizeof *s); \
+ s->type = htons(ENUM); \
+ s->len = htons(sizeof *s); \
+ } \
+ \
+ struct STRUCT * \
+ ofputil_put_##ENUM(struct ofpbuf *buf) \
+ { \
+ struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
+ ofputil_init_##ENUM(s); \
+ return s; \
+ }
+#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
+ OFPAT10_ACTION(ENUM, STRUCT, NAME)
+#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
+ void \
+ ofputil_init_##ENUM(struct STRUCT *s) \
+ { \
+ memset(s, 0, sizeof *s); \
+ s->type = htons(OFPAT10_VENDOR); \
+ s->len = htons(sizeof *s); \
+ s->vendor = htonl(NX_VENDOR_ID); \
+ s->subtype = htons(ENUM); \
+ } \
+ \
+ struct STRUCT * \
+ ofputil_put_##ENUM(struct ofpbuf *buf) \
+ { \
+ struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
+ ofputil_init_##ENUM(s); \
+ return s; \
+ }
+#include "ofp-util.def"
+
+static void
+ofputil_normalize_match__(struct match *match, bool may_log)
+{
+ enum {
+ MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */
+ MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */
+ MAY_NW_PROTO = 1 << 2, /* nw_proto */
+ MAY_IPVx = 1 << 3, /* tos, frag, ttl */
+ MAY_ARP_SHA = 1 << 4, /* arp_sha */
+ MAY_ARP_THA = 1 << 5, /* arp_tha */
+ MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */
+ MAY_ND_TARGET = 1 << 7, /* nd_target */
+ MAY_MPLS = 1 << 8, /* mpls label and tc */
+ } may_match;
+
+ struct flow_wildcards wc;
+
+ /* Figure out what fields may be matched. */
+ if (match->flow.dl_type == htons(ETH_TYPE_IP)) {
+ may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR;
+ if (match->flow.nw_proto == IPPROTO_TCP ||
+ match->flow.nw_proto == IPPROTO_UDP ||
+ match->flow.nw_proto == IPPROTO_SCTP ||
+ match->flow.nw_proto == IPPROTO_ICMP) {
+ may_match |= MAY_TP_ADDR;
+ }
+ } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) {
+ may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6;
+ if (match->flow.nw_proto == IPPROTO_TCP ||
+ match->flow.nw_proto == IPPROTO_UDP ||
+ match->flow.nw_proto == IPPROTO_SCTP) {
+ may_match |= MAY_TP_ADDR;
+ } else if (match->flow.nw_proto == IPPROTO_ICMPV6) {
+ may_match |= MAY_TP_ADDR;
+ if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) {
+ may_match |= MAY_ND_TARGET | MAY_ARP_SHA;
+ } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) {
+ may_match |= MAY_ND_TARGET | MAY_ARP_THA;
+ }
+ }
+ } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) ||
+ match->flow.dl_type == htons(ETH_TYPE_RARP)) {
+ may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA;
+ } else if (eth_type_mpls(match->flow.dl_type)) {
+ may_match = MAY_MPLS;
+ } else {
+ may_match = 0;
+ }
+
+ /* Clear the fields that may not be matched. */
+ wc = match->wc;
+ if (!(may_match & MAY_NW_ADDR)) {
wc.masks.nw_src = wc.masks.nw_dst = htonl(0);
}
- if (!(may_match & MAY_TP_ADDR)) {
- wc.masks.tp_src = wc.masks.tp_dst = htons(0);
+ if (!(may_match & MAY_TP_ADDR)) {
+ wc.masks.tp_src = wc.masks.tp_dst = htons(0);
+ }
+ if (!(may_match & MAY_NW_PROTO)) {
+ wc.masks.nw_proto = 0;
+ }
+ if (!(may_match & MAY_IPVx)) {
+ wc.masks.nw_tos = 0;
+ wc.masks.nw_ttl = 0;
+ }
+ if (!(may_match & MAY_ARP_SHA)) {
+ memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN);
+ }
+ if (!(may_match & MAY_ARP_THA)) {
+ memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN);
+ }
+ if (!(may_match & MAY_IPV6)) {
+ wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any;
+ wc.masks.ipv6_label = htonl(0);
+ }
+ if (!(may_match & MAY_ND_TARGET)) {
+ wc.masks.nd_target = in6addr_any;
+ }
+ if (!(may_match & MAY_MPLS)) {
+ wc.masks.mpls_lse = htonl(0);
+ }
+
+ /* Log any changes. */
+ if (!flow_wildcards_equal(&wc, &match->wc)) {
+ bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl);
+ char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL;
+
+ match->wc = wc;
+ match_zero_wildcarded_fields(match);
+
+ if (log) {
+ char *post = match_to_string(match, OFP_DEFAULT_PRIORITY);
+ VLOG_INFO("normalization changed ofp_match, details:");
+ VLOG_INFO(" pre: %s", pre);
+ VLOG_INFO("post: %s", post);
+ free(pre);
+ free(post);
+ }
+ }
+}
+
+/* "Normalizes" the wildcards in 'match'. That means:
+ *
+ * 1. If the type of level N is known, then only the valid fields for that
+ * level may be specified. For example, ARP does not have a TOS field,
+ * so nw_tos must be wildcarded if 'match' specifies an ARP flow.
+ * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
+ * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an
+ * IPv4 flow.
+ *
+ * 2. If the type of level N is not known (or not understood by Open
+ * vSwitch), then no fields at all for that level may be specified. For
+ * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
+ * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an
+ * SCTP flow.
+ *
+ * If this function changes 'match', it logs a rate-limited informational
+ * message. */
+void
+ofputil_normalize_match(struct match *match)
+{
+ ofputil_normalize_match__(match, true);
+}
+
+/* Same as ofputil_normalize_match() without the logging. Thus, this function
+ * is suitable for a program's internal use, whereas ofputil_normalize_match()
+ * sense for use on flows received from elsewhere (so that a bug in the program
+ * that sent them can be reported and corrected). */
+void
+ofputil_normalize_match_quiet(struct match *match)
+{
+ ofputil_normalize_match__(match, false);
+}
+
+/* Parses a key or a key-value pair from '*stringp'.
+ *
+ * On success: Stores the key into '*keyp'. Stores the value, if present, into
+ * '*valuep', otherwise an empty string. Advances '*stringp' past the end of
+ * the key-value pair, preparing it for another call. '*keyp' and '*valuep'
+ * are substrings of '*stringp' created by replacing some of its bytes by null
+ * terminators. Returns true.
+ *
+ * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to
+ * NULL and returns false. */
+bool
+ofputil_parse_key_value(char **stringp, char **keyp, char **valuep)
+{
+ char *pos, *key, *value;
+ size_t key_len;
+
+ pos = *stringp;
+ pos += strspn(pos, ", \t\r\n");
+ if (*pos == '\0') {
+ *keyp = *valuep = NULL;
+ return false;
+ }
+
+ key = pos;
+ key_len = strcspn(pos, ":=(, \t\r\n");
+ if (key[key_len] == ':' || key[key_len] == '=') {
+ /* The value can be separated by a colon. */
+ size_t value_len;
+
+ value = key + key_len + 1;
+ value_len = strcspn(value, ", \t\r\n");
+ pos = value + value_len + (value[value_len] != '\0');
+ value[value_len] = '\0';
+ } else if (key[key_len] == '(') {
+ /* The value can be surrounded by balanced parentheses. The outermost
+ * set of parentheses is removed. */
+ int level = 1;
+ size_t value_len;
+
+ value = key + key_len + 1;
+ for (value_len = 0; level > 0; value_len++) {
+ switch (value[value_len]) {
+ case '\0':
+ level = 0;
+ break;
+
+ case '(':
+ level++;
+ break;
+
+ case ')':
+ level--;
+ break;
+ }
+ }
+ value[value_len - 1] = '\0';
+ pos = value + value_len;
+ } else {
+ /* There might be no value at all. */
+ value = key + key_len; /* Will become the empty string below. */
+ pos = key + key_len + (key[key_len] != '\0');
}
- if (!(may_match & MAY_NW_PROTO)) {
- wc.masks.nw_proto = 0;
+ key[key_len] = '\0';
+
+ *stringp = pos;
+ *keyp = key;
+ *valuep = value;
+ return true;
+}
+
+/* Encode a dump ports request for 'port', the encoded message
+ * will be for Open Flow version 'ofp_version'. Returns message
+ * as a struct ofpbuf. Returns encoded message on success, NULL on error */
+struct ofpbuf *
+ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port)
+{
+ struct ofpbuf *request;
+
+ switch (ofp_version) {
+ case OFP10_VERSION: {
+ struct ofp10_port_stats_request *req;
+ request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0);
+ req = ofpbuf_put_zeros(request, sizeof *req);
+ req->port_no = htons(ofp_to_u16(port));
+ break;
}
- if (!(may_match & MAY_IPVx)) {
- wc.masks.nw_tos = 0;
- wc.masks.nw_ttl = 0;
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ struct ofp11_port_stats_request *req;
+ request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0);
+ req = ofpbuf_put_zeros(request, sizeof *req);
+ req->port_no = ofputil_port_to_ofp11(port);
+ break;
}
- if (!(may_match & MAY_ARP_SHA)) {
- memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN);
+ default:
+ NOT_REACHED();
}
- if (!(may_match & MAY_ARP_THA)) {
- memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN);
+
+ return request;
+}
+
+static void
+ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops,
+ struct ofp10_port_stats *ps10)
+{
+ ps10->port_no = htons(ofp_to_u16(ops->port_no));
+ memset(ps10->pad, 0, sizeof ps10->pad);
+ put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets));
+ put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets));
+ put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes));
+ put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes));
+ put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped));
+ put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped));
+ put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors));
+ put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors));
+ put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors));
+ put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors));
+ put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors));
+ put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions));
+}
+
+static void
+ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops,
+ struct ofp11_port_stats *ps11)
+{
+ ps11->port_no = ofputil_port_to_ofp11(ops->port_no);
+ memset(ps11->pad, 0, sizeof ps11->pad);
+ ps11->rx_packets = htonll(ops->stats.rx_packets);
+ ps11->tx_packets = htonll(ops->stats.tx_packets);
+ ps11->rx_bytes = htonll(ops->stats.rx_bytes);
+ ps11->tx_bytes = htonll(ops->stats.tx_bytes);
+ ps11->rx_dropped = htonll(ops->stats.rx_dropped);
+ ps11->tx_dropped = htonll(ops->stats.tx_dropped);
+ ps11->rx_errors = htonll(ops->stats.rx_errors);
+ ps11->tx_errors = htonll(ops->stats.tx_errors);
+ ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors);
+ ps11->rx_over_err = htonll(ops->stats.rx_over_errors);
+ ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors);
+ ps11->collisions = htonll(ops->stats.collisions);
+}
+
+static void
+ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops,
+ struct ofp13_port_stats *ps13)
+{
+ ofputil_port_stats_to_ofp11(ops, &ps13->ps);
+ ps13->duration_sec = htonl(ops->duration_sec);
+ ps13->duration_nsec = htonl(ops->duration_nsec);
+}
+
+
+/* Encode a ports stat for 'ops' and append it to 'replies'. */
+void
+ofputil_append_port_stat(struct list *replies,
+ const struct ofputil_port_stats *ops)
+{
+ struct ofpbuf *msg = ofpbuf_from_list(list_back(replies));
+ struct ofp_header *oh = msg->data;
+
+ switch ((enum ofp_version)oh->version) {
+ case OFP13_VERSION: {
+ struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply);
+ ofputil_port_stats_to_ofp13(ops, reply);
+ break;
}
- if (!(may_match & MAY_IPV6)) {
- wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any;
- wc.masks.ipv6_label = htonl(0);
+ case OFP12_VERSION:
+ case OFP11_VERSION: {
+ struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply);
+ ofputil_port_stats_to_ofp11(ops, reply);
+ break;
}
- if (!(may_match & MAY_ND_TARGET)) {
- wc.masks.nd_target = in6addr_any;
+
+ case OFP10_VERSION: {
+ struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply);
+ ofputil_port_stats_to_ofp10(ops, reply);
+ break;
}
- if (!(may_match & MAY_MPLS)) {
- wc.masks.mpls_lse = htonl(0);
- wc.masks.mpls_depth = 0;
+
+ default:
+ NOT_REACHED();
}
+}
- /* Log any changes. */
- if (!flow_wildcards_equal(&wc, &match->wc)) {
- bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl);
- char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL;
+static enum ofperr
+ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops,
+ const struct ofp10_port_stats *ps10)
+{
+ memset(ops, 0, sizeof *ops);
- match->wc = wc;
- match_zero_wildcarded_fields(match);
+ ops->port_no = u16_to_ofp(ntohs(ps10->port_no));
+ ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets));
+ ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets));
+ ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes));
+ ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes));
+ ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped));
+ ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped));
+ ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors));
+ ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors));
+ ops->stats.rx_frame_errors =
+ ntohll(get_32aligned_be64(&ps10->rx_frame_err));
+ ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err));
+ ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err));
+ ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions));
+ ops->duration_sec = ops->duration_nsec = UINT32_MAX;
- if (log) {
- char *post = match_to_string(match, OFP_DEFAULT_PRIORITY);
- VLOG_INFO("normalization changed ofp_match, details:");
- VLOG_INFO(" pre: %s", pre);
- VLOG_INFO("post: %s", post);
- free(pre);
- free(post);
- }
+ return 0;
+}
+
+static enum ofperr
+ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops,
+ const struct ofp11_port_stats *ps11)
+{
+ enum ofperr error;
+
+ memset(ops, 0, sizeof *ops);
+ error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no);
+ if (error) {
+ return error;
+ }
+
+ ops->stats.rx_packets = ntohll(ps11->rx_packets);
+ ops->stats.tx_packets = ntohll(ps11->tx_packets);
+ ops->stats.rx_bytes = ntohll(ps11->rx_bytes);
+ ops->stats.tx_bytes = ntohll(ps11->tx_bytes);
+ ops->stats.rx_dropped = ntohll(ps11->rx_dropped);
+ ops->stats.tx_dropped = ntohll(ps11->tx_dropped);
+ ops->stats.rx_errors = ntohll(ps11->rx_errors);
+ ops->stats.tx_errors = ntohll(ps11->tx_errors);
+ ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err);
+ ops->stats.rx_over_errors = ntohll(ps11->rx_over_err);
+ ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err);
+ ops->stats.collisions = ntohll(ps11->collisions);
+ ops->duration_sec = ops->duration_nsec = UINT32_MAX;
+
+ return 0;
+}
+
+static enum ofperr
+ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops,
+ const struct ofp13_port_stats *ps13)
+{
+ enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps);
+ if (!error) {
+ ops->duration_sec = ntohl(ps13->duration_sec);
+ ops->duration_nsec = ntohl(ps13->duration_nsec);
}
+ return error;
}
-/* "Normalizes" the wildcards in 'match'. That means:
- *
- * 1. If the type of level N is known, then only the valid fields for that
- * level may be specified. For example, ARP does not have a TOS field,
- * so nw_tos must be wildcarded if 'match' specifies an ARP flow.
- * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
- * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an
- * IPv4 flow.
- *
- * 2. If the type of level N is not known (or not understood by Open
- * vSwitch), then no fields at all for that level may be specified. For
- * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
- * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an
- * SCTP flow.
- *
- * If this function changes 'match', it logs a rate-limited informational
- * message. */
-void
-ofputil_normalize_match(struct match *match)
+static size_t
+ofputil_get_port_stats_size(enum ofp_version ofp_version)
{
- ofputil_normalize_match__(match, true);
+ switch (ofp_version) {
+ case OFP10_VERSION:
+ return sizeof(struct ofp10_port_stats);
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ return sizeof(struct ofp11_port_stats);
+ case OFP13_VERSION:
+ return sizeof(struct ofp13_port_stats);
+ default:
+ NOT_REACHED();
+ }
}
-/* Same as ofputil_normalize_match() without the logging. Thus, this function
- * is suitable for a program's internal use, whereas ofputil_normalize_match()
- * sense for use on flows received from elsewhere (so that a bug in the program
- * that sent them can be reported and corrected). */
-void
-ofputil_normalize_match_quiet(struct match *match)
+/* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY
+ * message 'oh'. */
+size_t
+ofputil_count_port_stats(const struct ofp_header *oh)
{
- ofputil_normalize_match__(match, false);
+ struct ofpbuf b;
+
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ ofpraw_pull_assert(&b);
+
+ return b.size / ofputil_get_port_stats_size(oh->version);
}
-/* Parses a key or a key-value pair from '*stringp'.
+/* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract
+ * ofputil_port_stats in 'ps'.
*
- * On success: Stores the key into '*keyp'. Stores the value, if present, into
- * '*valuep', otherwise an empty string. Advances '*stringp' past the end of
- * the key-value pair, preparing it for another call. '*keyp' and '*valuep'
- * are substrings of '*stringp' created by replacing some of its bytes by null
- * terminators. Returns true.
+ * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow
+ * message. Calling this function multiple times for a single 'msg' iterates
+ * through the replies. The caller must initially leave 'msg''s layer pointers
+ * null and not modify them between calls.
*
- * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to
- * NULL and returns false. */
-bool
-ofputil_parse_key_value(char **stringp, char **keyp, char **valuep)
+ * Returns 0 if successful, EOF if no replies were left in this 'msg',
+ * otherwise a positive errno value. */
+int
+ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg)
{
- char *pos, *key, *value;
- size_t key_len;
+ enum ofperr error;
+ enum ofpraw raw;
- pos = *stringp;
- pos += strspn(pos, ", \t\r\n");
- if (*pos == '\0') {
- *keyp = *valuep = NULL;
- return false;
+ error = (msg->l2
+ ? ofpraw_decode(&raw, msg->l2)
+ : ofpraw_pull(&raw, msg));
+ if (error) {
+ return error;
}
- key = pos;
- key_len = strcspn(pos, ":=(, \t\r\n");
- if (key[key_len] == ':' || key[key_len] == '=') {
- /* The value can be separated by a colon. */
- size_t value_len;
-
- value = key + key_len + 1;
- value_len = strcspn(value, ", \t\r\n");
- pos = value + value_len + (value[value_len] != '\0');
- value[value_len] = '\0';
- } else if (key[key_len] == '(') {
- /* The value can be surrounded by balanced parentheses. The outermost
- * set of parentheses is removed. */
- int level = 1;
- size_t value_len;
+ if (!msg->size) {
+ return EOF;
+ } else if (raw == OFPRAW_OFPST13_PORT_REPLY) {
+ const struct ofp13_port_stats *ps13;
- value = key + key_len + 1;
- for (value_len = 0; level > 0; value_len++) {
- switch (value[value_len]) {
- case '\0':
- level = 0;
- break;
+ ps13 = ofpbuf_try_pull(msg, sizeof *ps13);
+ if (!ps13) {
+ goto bad_len;
+ }
+ return ofputil_port_stats_from_ofp13(ps, ps13);
+ } else if (raw == OFPRAW_OFPST11_PORT_REPLY) {
+ const struct ofp11_port_stats *ps11;
- case '(':
- level++;
- break;
+ ps11 = ofpbuf_try_pull(msg, sizeof *ps11);
+ if (!ps11) {
+ goto bad_len;
+ }
+ return ofputil_port_stats_from_ofp11(ps, ps11);
+ } else if (raw == OFPRAW_OFPST10_PORT_REPLY) {
+ const struct ofp10_port_stats *ps10;
- case ')':
- level--;
- break;
- }
+ ps10 = ofpbuf_try_pull(msg, sizeof *ps10);
+ if (!ps10) {
+ goto bad_len;
}
- value[value_len - 1] = '\0';
- pos = value + value_len;
+ return ofputil_port_stats_from_ofp10(ps, ps10);
} else {
- /* There might be no value at all. */
- value = key + key_len; /* Will become the empty string below. */
- pos = key + key_len + (key[key_len] != '\0');
+ NOT_REACHED();
}
- key[key_len] = '\0';
- *stringp = pos;
- *keyp = key;
- *valuep = value;
- return true;
+ bad_len:
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIuSIZE" leftover "
+ "bytes at end", msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
}
-/* Encode a dump ports request for 'port', the encoded message
- * will be for Open Flow version 'ofp_version'. Returns message
- * as a struct ofpbuf. Returns encoded message on success, NULL on error */
+/* Parse a port status request message into a 16 bit OpenFlow 1.0
+ * port number and stores the latter in '*ofp10_port'.
+ * Returns 0 if successful, otherwise an OFPERR_* number. */
+enum ofperr
+ofputil_decode_port_stats_request(const struct ofp_header *request,
+ ofp_port_t *ofp10_port)
+{
+ switch ((enum ofp_version)request->version) {
+ case OFP13_VERSION:
+ case OFP12_VERSION:
+ case OFP11_VERSION: {
+ const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request);
+ return ofputil_port_from_ofp11(psr11->port_no, ofp10_port);
+ }
+
+ case OFP10_VERSION: {
+ const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request);
+ *ofp10_port = u16_to_ofp(ntohs(psr10->port_no));
+ return 0;
+ }
+
+ default:
+ NOT_REACHED();
+ }
+}
+
+/* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */
+void
+ofputil_bucket_list_destroy(struct list *buckets)
+{
+ struct ofputil_bucket *bucket, *next_bucket;
+
+ LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) {
+ list_remove(&bucket->list_node);
+ free(bucket->ofpacts);
+ free(bucket);
+ }
+}
+
+/* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version',
+ * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats
+ * for all groups.)
+ *
+ * Group statistics include packet and byte counts for each group. */
struct ofpbuf *
-ofputil_encode_dump_ports_request(enum ofp_version ofp_version, int16_t port)
+ofputil_encode_group_stats_request(enum ofp_version ofp_version,
+ uint32_t group_id)
{
struct ofpbuf *request;
switch (ofp_version) {
- case OFP10_VERSION: {
- struct ofp10_port_stats_request *req;
- request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0);
- req = ofpbuf_put_zeros(request, sizeof *req);
- req->port_no = htons(port);
- break;
- }
+ case OFP10_VERSION:
+ ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later "
+ "(\'-O OpenFlow11\')");
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION: {
- struct ofp11_port_stats_request *req;
- request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0);
+ struct ofp11_group_stats_request *req;
+ request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0);
req = ofpbuf_put_zeros(request, sizeof *req);
- req->port_no = ofputil_port_to_ofp11(port);
+ req->group_id = htonl(group_id);
break;
}
default:
return request;
}
-static void
-ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops,
- struct ofp10_port_stats *ps10)
+/* Returns an OpenFlow group description request for OpenFlow version
+ * 'ofp_version', that requests stats for group 'group_id'. (Use OFPG_ALL to
+ * request stats for all groups.)
+ *
+ * Group descriptions include the bucket and action configuration for each
+ * group. */
+struct ofpbuf *
+ofputil_encode_group_desc_request(enum ofp_version ofp_version)
{
- ps10->port_no = htons(ops->port_no);
- memset(ps10->pad, 0, sizeof ps10->pad);
- put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets));
- put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets));
- put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes));
- put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes));
- put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped));
- put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped));
- put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors));
- put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors));
- put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors));
- put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors));
- put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors));
- put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions));
+ struct ofpbuf *request;
+
+ switch (ofp_version) {
+ case OFP10_VERSION:
+ ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later "
+ "(\'-O OpenFlow11\')");
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, ofp_version, 0);
+ break;
+ }
+ default:
+ NOT_REACHED();
+ }
+
+ return request;
}
-static void
-ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops,
- struct ofp11_port_stats *ps11)
+static void *
+ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *ogs,
+ size_t base_len, struct list *replies)
{
- ps11->port_no = ofputil_port_to_ofp11(ops->port_no);
- memset(ps11->pad, 0, sizeof ps11->pad);
- ps11->rx_packets = htonll(ops->stats.rx_packets);
- ps11->tx_packets = htonll(ops->stats.tx_packets);
- ps11->rx_bytes = htonll(ops->stats.rx_bytes);
- ps11->tx_bytes = htonll(ops->stats.tx_bytes);
- ps11->rx_dropped = htonll(ops->stats.rx_dropped);
- ps11->tx_dropped = htonll(ops->stats.tx_dropped);
- ps11->rx_errors = htonll(ops->stats.rx_errors);
- ps11->tx_errors = htonll(ops->stats.tx_errors);
- ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors);
- ps11->rx_over_err = htonll(ops->stats.rx_over_errors);
- ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors);
- ps11->collisions = htonll(ops->stats.collisions);
+ struct ofp11_bucket_counter *bc11;
+ struct ofp11_group_stats *gs11;
+ size_t length;
+ int i;
+
+ length = base_len + sizeof(struct ofp11_bucket_counter) * ogs->n_buckets;
+
+ gs11 = ofpmp_append(replies, length);
+ memset(gs11, 0, base_len);
+ gs11->length = htons(length);
+ gs11->group_id = htonl(ogs->group_id);
+ gs11->ref_count = htonl(ogs->ref_count);
+ gs11->packet_count = htonll(ogs->packet_count);
+ gs11->byte_count = htonll(ogs->byte_count);
+
+ bc11 = (void *) (((uint8_t *) gs11) + base_len);
+ for (i = 0; i < ogs->n_buckets; i++) {
+ const struct bucket_counter *obc = &ogs->bucket_stats[i];
+
+ bc11[i].packet_count = htonll(obc->packet_count);
+ bc11[i].byte_count = htonll(obc->byte_count);
+ }
+
+ return gs11;
}
-static void
-ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops,
- struct ofp13_port_stats *ps13)
+static void
+ofputil_append_of13_group_stats(const struct ofputil_group_stats *ogs,
+ struct list *replies)
{
- ofputil_port_stats_to_ofp11(ops, &ps13->ps);
+ struct ofp13_group_stats *gs13;
- /* OF 1.3 adds duration fields */
- /* FIXME: Need to implement port alive duration (sec + nsec) */
- ps13->duration_sec = htonl(~0);
- ps13->duration_nsec = htonl(~0);
+ gs13 = ofputil_group_stats_to_ofp11(ogs, sizeof *gs13, replies);
+ gs13->duration_sec = htonl(ogs->duration_sec);
+ gs13->duration_nsec = htonl(ogs->duration_nsec);
}
-
-/* Encode a ports stat for 'ops' and append it to 'replies'. */
+/* Encodes 'ogs' properly for the format of the list of group statistics
+ * replies already begun in 'replies' and appends it to the list. 'replies'
+ * must have originally been initialized with ofpmp_init(). */
void
-ofputil_append_port_stat(struct list *replies,
- const struct ofputil_port_stats *ops)
+ofputil_append_group_stats(struct list *replies,
+ const struct ofputil_group_stats *ogs)
{
struct ofpbuf *msg = ofpbuf_from_list(list_back(replies));
struct ofp_header *oh = msg->data;
switch ((enum ofp_version)oh->version) {
- case OFP13_VERSION: {
- struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply);
- ofputil_port_stats_to_ofp13(ops, reply);
- break;
- }
+ case OFP11_VERSION:
case OFP12_VERSION:
- case OFP11_VERSION: {
- struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply);
- ofputil_port_stats_to_ofp11(ops, reply);
+ ofputil_group_stats_to_ofp11(ogs, sizeof(struct ofp11_group_stats),
+ replies);
break;
- }
- case OFP10_VERSION: {
- struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply);
- ofputil_port_stats_to_ofp10(ops, reply);
+ case OFP13_VERSION:
+ ofputil_append_of13_group_stats(ogs, replies);
break;
+
+ case OFP10_VERSION:
+ default:
+ NOT_REACHED();
}
+}
+
+/* Returns an OpenFlow group features request for OpenFlow version
+ * 'ofp_version'. */
+struct ofpbuf *
+ofputil_encode_group_features_request(enum ofp_version ofp_version)
+{
+ struct ofpbuf *request = NULL;
+ switch (ofp_version) {
+ case OFP10_VERSION:
+ case OFP11_VERSION:
+ ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later "
+ "(\'-O OpenFlow12\')");
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST,
+ ofp_version, 0);
+ break;
+ }
default:
NOT_REACHED();
}
+
+ return request;
}
-static enum ofperr
-ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops,
- const struct ofp10_port_stats *ps10)
+/* Returns a OpenFlow message that encodes 'features' properly as a reply to
+ * group features request 'request'. */
+struct ofpbuf *
+ofputil_encode_group_features_reply(
+ const struct ofputil_group_features *features,
+ const struct ofp_header *request)
{
- memset(ops, 0, sizeof *ops);
+ struct ofp12_group_features_stats *ogf;
+ struct ofpbuf *reply;
- ops->port_no = ntohs(ps10->port_no);
- ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets));
- ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets));
- ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes));
- ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes));
- ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped));
- ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped));
- ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors));
- ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors));
- ops->stats.rx_frame_errors =
- ntohll(get_32aligned_be64(&ps10->rx_frame_err));
- ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err));
- ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err));
- ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions));
+ reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY,
+ request->version, request->xid, 0);
+ ogf = ofpbuf_put_zeros(reply, sizeof *ogf);
+ ogf->types = htonl(features->types);
+ ogf->capabilities = htonl(features->capabilities);
+ ogf->max_groups[0] = htonl(features->max_groups[0]);
+ ogf->max_groups[1] = htonl(features->max_groups[1]);
+ ogf->max_groups[2] = htonl(features->max_groups[2]);
+ ogf->max_groups[3] = htonl(features->max_groups[3]);
+ ogf->actions[0] = htonl(features->actions[0]);
+ ogf->actions[1] = htonl(features->actions[1]);
+ ogf->actions[2] = htonl(features->actions[2]);
+ ogf->actions[3] = htonl(features->actions[3]);
+
+ return reply;
+}
+
+/* Decodes group features reply 'oh' into 'features'. */
+void
+ofputil_decode_group_features_reply(const struct ofp_header *oh,
+ struct ofputil_group_features *features)
+{
+ const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh);
+ features->types = ntohl(ogf->types);
+ features->capabilities = ntohl(ogf->capabilities);
+ features->max_groups[0] = ntohl(ogf->max_groups[0]);
+ features->max_groups[1] = ntohl(ogf->max_groups[1]);
+ features->max_groups[2] = ntohl(ogf->max_groups[2]);
+ features->max_groups[3] = ntohl(ogf->max_groups[3]);
+ features->actions[0] = ntohl(ogf->actions[0]);
+ features->actions[1] = ntohl(ogf->actions[1]);
+ features->actions[2] = ntohl(ogf->actions[2]);
+ features->actions[3] = ntohl(ogf->actions[3]);
+}
+
+/* Parse a group status request message into a 32 bit OpenFlow 1.1
+ * group ID and stores the latter in '*group_id'.
+ * Returns 0 if successful, otherwise an OFPERR_* number. */
+enum ofperr
+ofputil_decode_group_stats_request(const struct ofp_header *request,
+ uint32_t *group_id)
+{
+ const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request);
+ *group_id = ntohl(gsr11->group_id);
return 0;
}
-static enum ofperr
-ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops,
- const struct ofp11_port_stats *ps11)
+/* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats
+ * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the
+ * caller to eventually free.
+ *
+ * Multiple group stats replies can be packed into a single OpenFlow message.
+ * Calling this function multiple times for a single 'msg' iterates through the
+ * replies. The caller must initially leave 'msg''s layer pointers null and
+ * not modify them between calls.
+ *
+ * Returns 0 if successful, EOF if no replies were left in this 'msg',
+ * otherwise a positive errno value. */
+int
+ofputil_decode_group_stats_reply(struct ofpbuf *msg,
+ struct ofputil_group_stats *gs)
{
+ struct ofp11_bucket_counter *obc;
+ struct ofp11_group_stats *ogs11;
+ enum ofpraw raw;
enum ofperr error;
+ size_t base_len;
+ size_t length;
+ size_t i;
- memset(ops, 0, sizeof *ops);
- error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no);
+ gs->bucket_stats = NULL;
+ error = (msg->l2
+ ? ofpraw_decode(&raw, msg->l2)
+ : ofpraw_pull(&raw, msg));
if (error) {
return error;
}
- ops->stats.rx_packets = ntohll(ps11->rx_packets);
- ops->stats.tx_packets = ntohll(ps11->tx_packets);
- ops->stats.rx_bytes = ntohll(ps11->rx_bytes);
- ops->stats.tx_bytes = ntohll(ps11->tx_bytes);
- ops->stats.rx_dropped = ntohll(ps11->rx_dropped);
- ops->stats.tx_dropped = ntohll(ps11->tx_dropped);
- ops->stats.rx_errors = ntohll(ps11->rx_errors);
- ops->stats.tx_errors = ntohll(ps11->tx_errors);
- ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err);
- ops->stats.rx_over_errors = ntohll(ps11->rx_over_err);
- ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err);
- ops->stats.collisions = ntohll(ps11->collisions);
+ if (!msg->size) {
+ return EOF;
+ }
+
+ if (raw == OFPRAW_OFPST11_GROUP_REPLY) {
+ base_len = sizeof *ogs11;
+ ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11);
+ gs->duration_sec = gs->duration_nsec = UINT32_MAX;
+ } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) {
+ struct ofp13_group_stats *ogs13;
+
+ base_len = sizeof *ogs13;
+ ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13);
+ if (ogs13) {
+ ogs11 = &ogs13->gs;
+ gs->duration_sec = ntohl(ogs13->duration_sec);
+ gs->duration_nsec = ntohl(ogs13->duration_nsec);
+ } else {
+ ogs11 = NULL;
+ }
+ } else {
+ NOT_REACHED();
+ }
+
+ if (!ogs11) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIuSIZE" leftover bytes at end",
+ ofpraw_get_name(raw), msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+ length = ntohs(ogs11->length);
+ if (length < sizeof base_len) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE,
+ ofpraw_get_name(raw), length);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ gs->group_id = ntohl(ogs11->group_id);
+ gs->ref_count = ntohl(ogs11->ref_count);
+ gs->packet_count = ntohll(ogs11->packet_count);
+ gs->byte_count = ntohll(ogs11->byte_count);
+
+ gs->n_buckets = (length - base_len) / sizeof *obc;
+ obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc);
+ if (!obc) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIuSIZE" leftover bytes at end",
+ ofpraw_get_name(raw), msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats);
+ for (i = 0; i < gs->n_buckets; i++) {
+ gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count);
+ gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count);
+ }
return 0;
}
+/* Appends a group stats reply that contains the data in 'gds' to those already
+ * present in the list of ofpbufs in 'replies'. 'replies' should have been
+ * initialized with ofpmp_init(). */
+void
+ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds,
+ struct list *buckets,
+ struct list *replies)
+{
+ struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
+ struct ofp11_group_desc_stats *ogds;
+ struct ofputil_bucket *bucket;
+ size_t start_ogds;
+ enum ofp_version version = ((struct ofp_header *)reply->data)->version;
+
+ start_ogds = reply->size;
+ ofpbuf_put_zeros(reply, sizeof *ogds);
+ LIST_FOR_EACH (bucket, list_node, buckets) {
+ struct ofp11_bucket *ob;
+ size_t start_ob;
+
+ start_ob = reply->size;
+ ofpbuf_put_zeros(reply, sizeof *ob);
+ ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len,
+ reply, version);
+ ob = ofpbuf_at_assert(reply, start_ob, sizeof *ob);
+ ob->len = htons(reply->size - start_ob);
+ ob->weight = htons(bucket->weight);
+ ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port);
+ ob->watch_group = htonl(bucket->watch_group);
+ }
+ ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds);
+ ogds->length = htons(reply->size - start_ogds);
+ ogds->type = gds->type;
+ ogds->group_id = htonl(gds->group_id);
+
+ ofpmp_postappend(replies, start_ogds);
+}
+
static enum ofperr
-ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops,
- const struct ofp13_port_stats *ps13)
+ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length,
+ enum ofp_version version, struct list *buckets)
{
- enum ofperr error =
- ofputil_port_stats_from_ofp11(ops, &ps13->ps);
- if (!error) {
- /* FIXME: Get ps13->duration_sec and ps13->duration_nsec,
- * Add to netdev_stats? */
- }
+ struct ofp11_bucket *ob;
- return error;
-}
+ list_init(buckets);
+ while (buckets_length > 0) {
+ struct ofputil_bucket *bucket;
+ struct ofpbuf ofpacts;
+ enum ofperr error;
+ size_t ob_len;
+
+ ob = (buckets_length >= sizeof *ob
+ ? ofpbuf_try_pull(msg, sizeof *ob)
+ : NULL);
+ if (!ob) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes",
+ buckets_length);
+ }
+ ob_len = ntohs(ob->len);
+ if (ob_len < sizeof *ob) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
+ "%"PRIuSIZE" is not valid", ob_len);
+ return OFPERR_OFPGMFC_BAD_BUCKET;
+ } else if (ob_len > buckets_length) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
+ "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE,
+ ob_len, buckets_length);
+ return OFPERR_OFPGMFC_BAD_BUCKET;
+ }
+ buckets_length -= ob_len;
-/* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY
- * message 'oh'. */
-size_t
-ofputil_count_port_stats(const struct ofp_header *oh)
-{
- struct ofpbuf b;
+ ofpbuf_init(&ofpacts, 0);
+ error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob,
+ version, &ofpacts);
+ if (error) {
+ ofpbuf_uninit(&ofpacts);
+ ofputil_bucket_list_destroy(buckets);
+ return error;
+ }
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
- ofpraw_pull_assert(&b);
+ bucket = xzalloc(sizeof *bucket);
+ bucket->weight = ntohs(ob->weight);
+ error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port);
+ if (error) {
+ ofpbuf_uninit(&ofpacts);
+ ofputil_bucket_list_destroy(buckets);
+ return OFPERR_OFPGMFC_BAD_WATCH;
+ }
+ bucket->watch_group = ntohl(ob->watch_group);
+ bucket->ofpacts = ofpbuf_steal_data(&ofpacts);
+ bucket->ofpacts_len = ofpacts.size;
+ list_push_back(buckets, &bucket->list_node);
+ }
- BUILD_ASSERT(sizeof(struct ofp10_port_stats) ==
- sizeof(struct ofp11_port_stats));
- return b.size / sizeof(struct ofp10_port_stats);
+ return 0;
}
-/* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract
- * ofputil_port_stats in 'ps'.
+/* Converts a group description reply in 'msg' into an abstract
+ * ofputil_group_desc in 'gd'.
*
- * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow
+ * Multiple group description replies can be packed into a single OpenFlow
* message. Calling this function multiple times for a single 'msg' iterates
* through the replies. The caller must initially leave 'msg''s layer pointers
* null and not modify them between calls.
* Returns 0 if successful, EOF if no replies were left in this 'msg',
* otherwise a positive errno value. */
int
-ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg)
+ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd,
+ struct ofpbuf *msg, enum ofp_version version)
{
- enum ofperr error;
- enum ofpraw raw;
+ struct ofp11_group_desc_stats *ogds;
+ size_t length;
- error = (msg->l2
- ? ofpraw_decode(&raw, msg->l2)
- : ofpraw_pull(&raw, msg));
- if (error) {
- return error;
+ if (!msg->l2) {
+ ofpraw_pull_assert(msg);
}
if (!msg->size) {
return EOF;
- } else if (raw == OFPRAW_OFPST13_PORT_REPLY) {
- const struct ofp13_port_stats *ps13;
+ }
- ps13 = ofpbuf_try_pull(msg, sizeof *ps13);
- if (!ps13) {
- goto bad_len;
- }
- return ofputil_port_stats_from_ofp13(ps, ps13);
- } else if (raw == OFPRAW_OFPST11_PORT_REPLY) {
- const struct ofp11_port_stats *ps11;
+ ogds = ofpbuf_try_pull(msg, sizeof *ogds);
+ if (!ogds) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIuSIZE" "
+ "leftover bytes at end", msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+ gd->type = ogds->type;
+ gd->group_id = ntohl(ogds->group_id);
- ps11 = ofpbuf_try_pull(msg, sizeof *ps11);
- if (!ps11) {
- goto bad_len;
+ length = ntohs(ogds->length);
+ if (length < sizeof *ogds || length - sizeof *ogds > msg->size) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid "
+ "length %"PRIuSIZE, length);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
+
+ return ofputil_pull_buckets(msg, length - sizeof *ogds, version,
+ &gd->buckets);
+}
+
+/* Converts abstract group mod 'gm' into a message for OpenFlow version
+ * 'ofp_version' and returns the message. */
+struct ofpbuf *
+ofputil_encode_group_mod(enum ofp_version ofp_version,
+ const struct ofputil_group_mod *gm)
+{
+ struct ofpbuf *b;
+ struct ofp11_group_mod *ogm;
+ size_t start_ogm;
+ size_t start_bucket;
+ struct ofputil_bucket *bucket;
+ struct ofp11_bucket *ob;
+
+ switch (ofp_version) {
+ case OFP10_VERSION: {
+ if (gm->command == OFPGC11_ADD) {
+ ovs_fatal(0, "add-group needs OpenFlow 1.1 or later "
+ "(\'-O OpenFlow11\')");
+ } else if (gm->command == OFPGC11_MODIFY) {
+ ovs_fatal(0, "mod-group needs OpenFlow 1.1 or later "
+ "(\'-O OpenFlow11\')");
+ } else {
+ ovs_fatal(0, "del-groups needs OpenFlow 1.1 or later "
+ "(\'-O OpenFlow11\')");
}
- return ofputil_port_stats_from_ofp11(ps, ps11);
- } else if (raw == OFPRAW_OFPST10_PORT_REPLY) {
- const struct ofp10_port_stats *ps10;
+ }
- ps10 = ofpbuf_try_pull(msg, sizeof *ps10);
- if (!ps10) {
- goto bad_len;
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION: {
+ b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0);
+ start_ogm = b->size;
+ ofpbuf_put_zeros(b, sizeof *ogm);
+
+ LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
+ start_bucket = b->size;
+ ofpbuf_put_zeros(b, sizeof *ob);
+ if (bucket->ofpacts && bucket->ofpacts_len) {
+ ofpacts_put_openflow_actions(bucket->ofpacts,
+ bucket->ofpacts_len, b,
+ ofp_version);
+ }
+ ob = ofpbuf_at_assert(b, start_bucket, sizeof *ob);
+ ob->len = htons(b->size - start_bucket);;
+ ob->weight = htons(bucket->weight);
+ ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port);
+ ob->watch_group = htonl(bucket->watch_group);
}
- return ofputil_port_stats_from_ofp10(ps, ps10);
- } else {
+ ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm);
+ ogm->command = htons(gm->command);
+ ogm->type = gm->type;
+ ogm->group_id = htonl(gm->group_id);
+
+ break;
+ }
+
+ default:
NOT_REACHED();
}
- bad_len:
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %zu leftover "
- "bytes at end", msg->size);
- return OFPERR_OFPBRC_BAD_LEN;
+ return b;
}
-/* Parse a port status request message into a 16 bit OpenFlow 1.0
- * port number and stores the latter in '*ofp10_port'.
- * Returns 0 if successful, otherwise an OFPERR_* number. */
+/* Converts OpenFlow group mod message 'oh' into an abstract group mod in
+ * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */
enum ofperr
-ofputil_decode_port_stats_request(const struct ofp_header *request,
- uint16_t *ofp10_port)
+ofputil_decode_group_mod(const struct ofp_header *oh,
+ struct ofputil_group_mod *gm)
{
- switch ((enum ofp_version)request->version) {
- case OFP13_VERSION:
- case OFP12_VERSION:
- case OFP11_VERSION: {
- const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request);
- return ofputil_port_from_ofp11(psr11->port_no, ofp10_port);
- }
+ const struct ofp11_group_mod *ogm;
+ struct ofpbuf msg;
+ struct ofputil_bucket *bucket;
+ enum ofperr err;
- case OFP10_VERSION: {
- const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request);
- *ofp10_port = ntohs(psr10->port_no);
- return 0;
+ ofpbuf_use_const(&msg, oh, ntohs(oh->length));
+ ofpraw_pull_assert(&msg);
+
+ ogm = ofpbuf_pull(&msg, sizeof *ogm);
+ gm->command = ntohs(ogm->command);
+ gm->type = ogm->type;
+ gm->group_id = ntohl(ogm->group_id);
+
+ err = ofputil_pull_buckets(&msg, msg.size, oh->version, &gm->buckets);
+ if (err) {
+ return err;
}
- default:
- NOT_REACHED();
+ LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
+ switch (gm->type) {
+ case OFPGT11_ALL:
+ case OFPGT11_INDIRECT:
+ if (ofputil_bucket_has_liveness(bucket)) {
+ return OFPERR_OFPGMFC_WATCH_UNSUPPORTED;
+ }
+ break;
+ case OFPGT11_SELECT:
+ break;
+ case OFPGT11_FF:
+ if (!ofputil_bucket_has_liveness(bucket)) {
+ return OFPERR_OFPGMFC_INVALID_GROUP;
+ }
+ break;
+ default:
+ NOT_REACHED();
+ }
}
+
+ return 0;
}
/* Parse a queue status request message into 'oqsr'.
case OFP10_VERSION: {
const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request);
oqsr->queue_id = ntohl(qsr10->queue_id);
- oqsr->port_no = ntohs(qsr10->port_no);
+ oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no));
/* OF 1.0 uses OFPP_ALL for OFPP_ANY */
if (oqsr->port_no == OFPP_ALL) {
oqsr->port_no = OFPP_ANY;
request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0);
req = ofpbuf_put_zeros(request, sizeof *req);
/* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */
- req->port_no = htons(oqsr->port_no == OFPP_ANY
- ? OFPP_ALL : oqsr->port_no);
+ req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY
+ ? OFPP_ALL : oqsr->port_no));
req->queue_id = htonl(oqsr->queue_id);
break;
}
return request;
}
+static size_t
+ofputil_get_queue_stats_size(enum ofp_version ofp_version)
+{
+ switch (ofp_version) {
+ case OFP10_VERSION:
+ return sizeof(struct ofp10_queue_stats);
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ return sizeof(struct ofp11_queue_stats);
+ case OFP13_VERSION:
+ return sizeof(struct ofp13_queue_stats);
+ default:
+ NOT_REACHED();
+ }
+}
+
/* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY
* message 'oh'. */
size_t
ofpbuf_use_const(&b, oh, ntohs(oh->length));
ofpraw_pull_assert(&b);
- BUILD_ASSERT(sizeof(struct ofp10_queue_stats) ==
- sizeof(struct ofp11_queue_stats));
- return b.size / sizeof(struct ofp10_queue_stats);
+ return b.size / ofputil_get_queue_stats_size(oh->version);
}
static enum ofperr
ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs,
const struct ofp10_queue_stats *qs10)
{
- oqs->port_no = ntohs(qs10->port_no);
+ oqs->port_no = u16_to_ofp(ntohs(qs10->port_no));
oqs->queue_id = ntohl(qs10->queue_id);
- oqs->stats.tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes));
- oqs->stats.tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets));
- oqs->stats.tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors));
+ oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes));
+ oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets));
+ oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors));
+ oqs->duration_sec = oqs->duration_nsec = UINT32_MAX;
return 0;
}
}
oqs->queue_id = ntohl(qs11->queue_id);
- oqs->stats.tx_bytes = ntohll(qs11->tx_bytes);
- oqs->stats.tx_packets = ntohll(qs11->tx_packets);
- oqs->stats.tx_errors = ntohll(qs11->tx_errors);
+ oqs->tx_bytes = ntohll(qs11->tx_bytes);
+ oqs->tx_packets = ntohll(qs11->tx_packets);
+ oqs->tx_errors = ntohll(qs11->tx_errors);
+ oqs->duration_sec = oqs->duration_nsec = UINT32_MAX;
return 0;
}
ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs,
const struct ofp13_queue_stats *qs13)
{
- enum ofperr error
- = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs);
+ enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs);
if (!error) {
- /* FIXME: Get qs13->duration_sec and qs13->duration_nsec,
- * Add to netdev_queue_stats? */
+ oqs->duration_sec = ntohl(qs13->duration_sec);
+ oqs->duration_nsec = ntohl(qs13->duration_nsec);
}
return error;
}
bad_len:
- VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %zu leftover "
+ VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIuSIZE" leftover "
"bytes at end", msg->size);
return OFPERR_OFPBRC_BAD_LEN;
}
ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs,
struct ofp10_queue_stats *qs10)
{
- qs10->port_no = htons(oqs->port_no);
+ qs10->port_no = htons(ofp_to_u16(oqs->port_no));
memset(qs10->pad, 0, sizeof qs10->pad);
qs10->queue_id = htonl(oqs->queue_id);
- put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->stats.tx_bytes));
- put_32aligned_be64(&qs10->tx_packets, htonll(oqs->stats.tx_packets));
- put_32aligned_be64(&qs10->tx_errors, htonll(oqs->stats.tx_errors));
+ put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes));
+ put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets));
+ put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors));
}
static void
{
qs11->port_no = ofputil_port_to_ofp11(oqs->port_no);
qs11->queue_id = htonl(oqs->queue_id);
- qs11->tx_bytes = htonll(oqs->stats.tx_bytes);
- qs11->tx_packets = htonll(oqs->stats.tx_packets);
- qs11->tx_errors = htonll(oqs->stats.tx_errors);
+ qs11->tx_bytes = htonll(oqs->tx_bytes);
+ qs11->tx_packets = htonll(oqs->tx_packets);
+ qs11->tx_errors = htonll(oqs->tx_errors);
}
static void
struct ofp13_queue_stats *qs13)
{
ofputil_queue_stats_to_ofp11(oqs, &qs13->qs);
- /* OF 1.3 adds duration fields */
- /* FIXME: Need to implement queue alive duration (sec + nsec) */
- qs13->duration_sec = htonl(~0);
- qs13->duration_nsec = htonl(~0);
+ if (oqs->duration_sec != UINT32_MAX) {
+ qs13->duration_sec = htonl(oqs->duration_sec);
+ qs13->duration_nsec = htonl(oqs->duration_nsec);
+ } else {
+ qs13->duration_sec = OVS_BE32_MAX;
+ qs13->duration_nsec = OVS_BE32_MAX;
+ }
}
/* Encode a queue stat for 'oqs' and append it to 'replies'. */
projects / cascardo / ovs.git / blobdiff