#include "byte-order.h"
#include "dynamic-string.h"
#include "packets.h"
+#include "vlog.h"
+
+VLOG_DEFINE_THIS_MODULE(match);
+
/* Converts the flow in 'flow' into a match in 'match', with the given
* 'wildcards'. */
match_zero_wildcarded_fields(match);
}
+/* Converts a flow into a match. It sets the wildcard masks based on
+ * the packet contents. It will not set the mask for fields that do not
+ * make sense for the packet type. */
+void
+match_wc_init(struct match *match, const struct flow *flow)
+{
+ struct flow_wildcards *wc;
+ int i;
+
+ match->flow = *flow;
+ wc = &match->wc;
+ memset(&wc->masks, 0x0, sizeof wc->masks);
+
+ memset(&wc->masks.dl_type, 0xff, sizeof wc->masks.dl_type);
+
+ if (flow->nw_proto) {
+ memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
+ }
+
+ for (i = 0; i < FLOW_N_REGS; i++) {
+ if (flow->regs[i]) {
+ memset(&wc->masks.regs[i], 0xff, sizeof wc->masks.regs[i]);
+ }
+ }
+
+ if (flow->tunnel.ip_dst) {
+ if (flow->tunnel.flags & FLOW_TNL_F_KEY) {
+ memset(&wc->masks.tunnel.tun_id, 0xff, sizeof wc->masks.tunnel.tun_id);
+ }
+ memset(&wc->masks.tunnel.ip_src, 0xff, sizeof wc->masks.tunnel.ip_src);
+ memset(&wc->masks.tunnel.ip_dst, 0xff, sizeof wc->masks.tunnel.ip_dst);
+ memset(&wc->masks.tunnel.flags, 0xff, sizeof wc->masks.tunnel.flags);
+ memset(&wc->masks.tunnel.ip_tos, 0xff, sizeof wc->masks.tunnel.ip_tos);
+ memset(&wc->masks.tunnel.ip_ttl, 0xff, sizeof wc->masks.tunnel.ip_ttl);
+ } else if (flow->tunnel.tun_id) {
+ memset(&wc->masks.tunnel.tun_id, 0xff, sizeof wc->masks.tunnel.tun_id);
+ }
+
+ memset(&wc->masks.metadata, 0xff, sizeof wc->masks.metadata);
+ memset(&wc->masks.in_port, 0xff, sizeof wc->masks.in_port);
+ memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
+ memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
+ memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
+
+ if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
+ memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
+ memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
+ memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
+ } else if (flow->dl_type == htons(ETH_TYPE_IP) ||
+ (flow->dl_type == htons(ETH_TYPE_ARP)) ||
+ (flow->dl_type == htons(ETH_TYPE_RARP))) {
+ memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
+ memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
+ }
+
+ if (flow->dl_type == htons(ETH_TYPE_ARP) ||
+ flow->dl_type == htons(ETH_TYPE_RARP)) {
+ memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
+ memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
+ }
+
+ if (flow->dl_type == htons(ETH_TYPE_IPV6) ||
+ flow->dl_type == htons(ETH_TYPE_IP)) {
+ memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
+ memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
+ }
+
+ if (flow->nw_frag) {
+ memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
+ }
+
+ if (flow->nw_proto == IPPROTO_ICMP || flow->nw_proto == IPPROTO_ICMPV6 ||
+ (flow->tp_src || flow->tp_dst)) {
+ memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
+ memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
+ }
+
+ if (flow->nw_proto == IPPROTO_ICMPV6) {
+ memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
+ memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
+ }
+
+ return;
+}
+
/* Converts the flow in 'flow' into an exact-match match in 'match'. */
void
match_init_exact(struct match *match, const struct flow *flow)
{
+ ovs_be64 tun_id = flow->tunnel.tun_id;
+
match->flow = *flow;
match->flow.skb_priority = 0;
+ match->flow.skb_mark = 0;
+ memset(&match->flow.tunnel, 0, sizeof match->flow.tunnel);
+ match->flow.tunnel.tun_id = tun_id;
flow_wildcards_init_exact(&match->wc);
}
void
match_set_tun_id_masked(struct match *match, ovs_be64 tun_id, ovs_be64 mask)
{
- match->wc.masks.tun_id = mask;
- match->flow.tun_id = tun_id & mask;
+ match->wc.masks.tunnel.tun_id = mask;
+ match->flow.tunnel.tun_id = tun_id & mask;
+}
+
+void
+match_set_tun_src(struct match *match, ovs_be32 src)
+{
+ match_set_tun_src_masked(match, src, htonl(UINT32_MAX));
+}
+
+void
+match_set_tun_src_masked(struct match *match, ovs_be32 src, ovs_be32 mask)
+{
+ match->wc.masks.tunnel.ip_src = mask;
+ match->flow.tunnel.ip_src = src & mask;
+}
+
+void
+match_set_tun_dst(struct match *match, ovs_be32 dst)
+{
+ match_set_tun_dst_masked(match, dst, htonl(UINT32_MAX));
+}
+
+void
+match_set_tun_dst_masked(struct match *match, ovs_be32 dst, ovs_be32 mask)
+{
+ match->wc.masks.tunnel.ip_dst = mask;
+ match->flow.tunnel.ip_dst = dst & mask;
+}
+
+void
+match_set_tun_ttl(struct match *match, uint8_t ttl)
+{
+ match_set_tun_ttl_masked(match, ttl, UINT8_MAX);
+}
+
+void
+match_set_tun_ttl_masked(struct match *match, uint8_t ttl, uint8_t mask)
+{
+ match->wc.masks.tunnel.ip_ttl = mask;
+ match->flow.tunnel.ip_ttl = ttl & mask;
+}
+
+void
+match_set_tun_tos(struct match *match, uint8_t tos)
+{
+ match_set_tun_tos_masked(match, tos, UINT8_MAX);
+}
+
+void
+match_set_tun_tos_masked(struct match *match, uint8_t tos, uint8_t mask)
+{
+ match->wc.masks.tunnel.ip_tos = mask;
+ match->flow.tunnel.ip_tos = tos & mask;
+}
+
+void
+match_set_tun_flags(struct match *match, uint16_t flags)
+{
+ match_set_tun_flags_masked(match, flags, UINT16_MAX);
+}
+
+void
+match_set_tun_flags_masked(struct match *match, uint16_t flags, uint16_t mask)
+{
+ match->wc.masks.tunnel.flags = mask;
+ match->flow.tunnel.flags = flags & mask;
}
void
}
}
+static void
+format_flow_tunnel(struct ds *s, const struct match *match)
+{
+ const struct flow_wildcards *wc = &match->wc;
+ const struct flow_tnl *tnl = &match->flow.tunnel;
+
+ switch (wc->masks.tunnel.tun_id) {
+ case 0:
+ break;
+ case CONSTANT_HTONLL(UINT64_MAX):
+ ds_put_format(s, "tun_id=%#"PRIx64",", ntohll(tnl->tun_id));
+ break;
+ default:
+ ds_put_format(s, "tun_id=%#"PRIx64"/%#"PRIx64",",
+ ntohll(tnl->tun_id),
+ ntohll(wc->masks.tunnel.tun_id));
+ break;
+ }
+ format_ip_netmask(s, "tun_src", tnl->ip_src, wc->masks.tunnel.ip_src);
+ format_ip_netmask(s, "tun_dst", tnl->ip_dst, wc->masks.tunnel.ip_dst);
+
+ if (wc->masks.tunnel.ip_tos) {
+ ds_put_format(s, "tun_tos=%"PRIx8",", tnl->ip_tos);
+ }
+ if (wc->masks.tunnel.ip_ttl) {
+ ds_put_format(s, "tun_ttl=%"PRIu8",", tnl->ip_ttl);
+ }
+ if (wc->masks.tunnel.flags) {
+ format_flags(s, flow_tun_flag_to_string, tnl->flags, '|');
+ ds_put_char(s, ',');
+ }
+}
+
/* Appends a string representation of 'match' to 's'. If 'priority' is
* different from OFP_DEFAULT_PRIORITY, includes it in 's'. */
void
int i;
- BUILD_ASSERT_DECL(FLOW_WC_SEQ == 17);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 18);
if (priority != OFP_DEFAULT_PRIORITY) {
ds_put_format(s, "priority=%u,", priority);
}
} else if (f->dl_type == htons(ETH_TYPE_ARP)) {
ds_put_cstr(s, "arp,");
+ } else if (f->dl_type == htons(ETH_TYPE_RARP)) {
+ ds_put_cstr(s, "rarp,");
} else {
skip_type = false;
}
break;
}
}
- switch (wc->masks.tun_id) {
- case 0:
- break;
- case CONSTANT_HTONLL(UINT64_MAX):
- ds_put_format(s, "tun_id=%#"PRIx64",", ntohll(f->tun_id));
- break;
- default:
- ds_put_format(s, "tun_id=%#"PRIx64"/%#"PRIx64",",
- ntohll(f->tun_id), ntohll(wc->masks.tun_id));
- break;
- }
+
+ format_flow_tunnel(s, match);
+
switch (wc->masks.metadata) {
case 0:
break;
ntohl(wc->masks.ipv6_label));
}
}
+ } else if (f->dl_type == htons(ETH_TYPE_ARP) ||
+ f->dl_type == htons(ETH_TYPE_RARP)) {
+ format_ip_netmask(s, "arp_spa", f->nw_src, wc->masks.nw_src);
+ format_ip_netmask(s, "arp_tpa", f->nw_dst, wc->masks.nw_dst);
} else {
format_ip_netmask(s, "nw_src", f->nw_src, wc->masks.nw_src);
format_ip_netmask(s, "nw_dst", f->nw_dst, wc->masks.nw_dst);
}
if (!skip_proto && wc->masks.nw_proto) {
- if (f->dl_type == htons(ETH_TYPE_ARP)) {
+ if (f->dl_type == htons(ETH_TYPE_ARP) ||
+ f->dl_type == htons(ETH_TYPE_RARP)) {
ds_put_format(s, "arp_op=%"PRIu8",", f->nw_proto);
} else {
ds_put_format(s, "nw_proto=%"PRIu8",", f->nw_proto);
}
}
- if (f->dl_type == htons(ETH_TYPE_ARP)) {
+ if (f->dl_type == htons(ETH_TYPE_ARP) ||
+ f->dl_type == htons(ETH_TYPE_RARP)) {
format_eth_masked(s, "arp_sha", f->arp_sha, wc->masks.arp_sha);
format_eth_masked(s, "arp_tha", f->arp_tha, wc->masks.arp_tha);
}
f->nw_frag & FLOW_NW_FRAG_LATER ? "later" : "not_later");
break;
}
- if (f->nw_proto == IPPROTO_ICMP) {
+ if (f->dl_type == htons(ETH_TYPE_IP) &&
+ f->nw_proto == IPPROTO_ICMP) {
format_be16_masked(s, "icmp_type", f->tp_src, wc->masks.tp_src);
format_be16_masked(s, "icmp_code", f->tp_dst, wc->masks.tp_dst);
- } else if (f->nw_proto == IPPROTO_ICMPV6) {
+ } else if (f->dl_type == htons(ETH_TYPE_IPV6) &&
+ f->nw_proto == IPPROTO_ICMPV6) {
format_be16_masked(s, "icmp_type", f->tp_src, wc->masks.tp_src);
format_be16_masked(s, "icmp_code", f->tp_dst, wc->masks.tp_dst);
format_ipv6_netmask(s, "nd_target", &f->nd_target,
projects / cascardo / ovs.git / blobdiff