#include "datapath.h"
#include "flow.h"
#include "flow_netlink.h"
+#include "vport-vxlan.h"
+
+struct ovs_len_tbl {
+ int len;
+ const struct ovs_len_tbl *next;
+};
+
+#define OVS_ATTR_NESTED -1
static void update_range(struct sw_flow_match *match,
size_t offset, size_t size, bool is_mask)
mask_allowed |= 1ULL << OVS_KEY_ATTR_ARP;
}
-
if (eth_p_mpls(match->key->eth.type)) {
key_expected |= 1ULL << OVS_KEY_ATTR_MPLS;
if (match->mask && (match->mask->key.eth.type == htons(0xffff)))
if ((key_attrs & key_expected) != key_expected) {
/* Key attributes check failed. */
- OVS_NLERR(log,
- "Missing expected key attributes (key_attrs=%llx, expected=%llx).",
+ OVS_NLERR(log, "Missing key (keys=%llx, expected=%llx)",
(unsigned long long)key_attrs,
(unsigned long long)key_expected);
return false;
if ((mask_attrs & mask_allowed) != mask_attrs) {
/* Mask attributes check failed. */
- OVS_NLERR(log,
- "Contain more than allowed mask fields (mask_attrs=%llx, mask_allowed=%llx).",
+ OVS_NLERR(log, "Unexpected mask (mask=%llx, allowed=%llx)",
(unsigned long long)mask_attrs,
(unsigned long long)mask_allowed);
return false;
+ nla_total_size(0) /* OVS_TUNNEL_KEY_ATTR_CSUM */
+ nla_total_size(0) /* OVS_TUNNEL_KEY_ATTR_OAM */
+ nla_total_size(256) /* OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS */
+ /* OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS is mutually exclusive with
+ * OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS and covered by it.
+ */
+ nla_total_size(2) /* OVS_TUNNEL_KEY_ATTR_TP_SRC */
+ nla_total_size(2); /* OVS_TUNNEL_KEY_ATTR_TP_DST */
}
+ nla_total_size(28); /* OVS_KEY_ATTR_ND */
}
-/* The size of the argument for each %OVS_KEY_ATTR_* Netlink attribute. */
-static const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
- [OVS_KEY_ATTR_ENCAP] = -1,
- [OVS_KEY_ATTR_PRIORITY] = sizeof(u32),
- [OVS_KEY_ATTR_IN_PORT] = sizeof(u32),
- [OVS_KEY_ATTR_SKB_MARK] = sizeof(u32),
- [OVS_KEY_ATTR_ETHERNET] = sizeof(struct ovs_key_ethernet),
- [OVS_KEY_ATTR_VLAN] = sizeof(__be16),
- [OVS_KEY_ATTR_ETHERTYPE] = sizeof(__be16),
- [OVS_KEY_ATTR_IPV4] = sizeof(struct ovs_key_ipv4),
- [OVS_KEY_ATTR_IPV6] = sizeof(struct ovs_key_ipv6),
- [OVS_KEY_ATTR_TCP] = sizeof(struct ovs_key_tcp),
- [OVS_KEY_ATTR_TCP_FLAGS] = sizeof(__be16),
- [OVS_KEY_ATTR_UDP] = sizeof(struct ovs_key_udp),
- [OVS_KEY_ATTR_SCTP] = sizeof(struct ovs_key_sctp),
- [OVS_KEY_ATTR_ICMP] = sizeof(struct ovs_key_icmp),
- [OVS_KEY_ATTR_ICMPV6] = sizeof(struct ovs_key_icmpv6),
- [OVS_KEY_ATTR_ARP] = sizeof(struct ovs_key_arp),
- [OVS_KEY_ATTR_ND] = sizeof(struct ovs_key_nd),
- [OVS_KEY_ATTR_DP_HASH] = sizeof(u32),
- [OVS_KEY_ATTR_RECIRC_ID] = sizeof(u32),
- [OVS_KEY_ATTR_TUNNEL] = -1,
- [OVS_KEY_ATTR_MPLS] = sizeof(struct ovs_key_mpls),
+static const struct ovs_len_tbl ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
+ [OVS_TUNNEL_KEY_ATTR_ID] = { .len = sizeof(u64) },
+ [OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = { .len = sizeof(u32) },
+ [OVS_TUNNEL_KEY_ATTR_IPV4_DST] = { .len = sizeof(u32) },
+ [OVS_TUNNEL_KEY_ATTR_TOS] = { .len = 1 },
+ [OVS_TUNNEL_KEY_ATTR_TTL] = { .len = 1 },
+ [OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = { .len = 0 },
+ [OVS_TUNNEL_KEY_ATTR_CSUM] = { .len = 0 },
+ [OVS_TUNNEL_KEY_ATTR_TP_SRC] = { .len = sizeof(u16) },
+ [OVS_TUNNEL_KEY_ATTR_TP_DST] = { .len = sizeof(u16) },
+ [OVS_TUNNEL_KEY_ATTR_OAM] = { .len = 0 },
+ [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS] = { .len = OVS_ATTR_NESTED },
+ [OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS] = { .len = OVS_ATTR_NESTED },
};
+/* The size of the argument for each %OVS_KEY_ATTR_* Netlink attribute. */
+static const struct ovs_len_tbl ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
+ [OVS_KEY_ATTR_ENCAP] = { .len = OVS_ATTR_NESTED },
+ [OVS_KEY_ATTR_PRIORITY] = { .len = sizeof(u32) },
+ [OVS_KEY_ATTR_IN_PORT] = { .len = sizeof(u32) },
+ [OVS_KEY_ATTR_SKB_MARK] = { .len = sizeof(u32) },
+ [OVS_KEY_ATTR_ETHERNET] = { .len = sizeof(struct ovs_key_ethernet) },
+ [OVS_KEY_ATTR_VLAN] = { .len = sizeof(__be16) },
+ [OVS_KEY_ATTR_ETHERTYPE] = { .len = sizeof(__be16) },
+ [OVS_KEY_ATTR_IPV4] = { .len = sizeof(struct ovs_key_ipv4) },
+ [OVS_KEY_ATTR_IPV6] = { .len = sizeof(struct ovs_key_ipv6) },
+ [OVS_KEY_ATTR_TCP] = { .len = sizeof(struct ovs_key_tcp) },
+ [OVS_KEY_ATTR_TCP_FLAGS] = { .len = sizeof(__be16) },
+ [OVS_KEY_ATTR_UDP] = { .len = sizeof(struct ovs_key_udp) },
+ [OVS_KEY_ATTR_SCTP] = { .len = sizeof(struct ovs_key_sctp) },
+ [OVS_KEY_ATTR_ICMP] = { .len = sizeof(struct ovs_key_icmp) },
+ [OVS_KEY_ATTR_ICMPV6] = { .len = sizeof(struct ovs_key_icmpv6) },
+ [OVS_KEY_ATTR_ARP] = { .len = sizeof(struct ovs_key_arp) },
+ [OVS_KEY_ATTR_ND] = { .len = sizeof(struct ovs_key_nd) },
+ [OVS_KEY_ATTR_RECIRC_ID] = { .len = sizeof(u32) },
+ [OVS_KEY_ATTR_DP_HASH] = { .len = sizeof(u32) },
+ [OVS_KEY_ATTR_TUNNEL] = { .len = OVS_ATTR_NESTED,
+ .next = ovs_tunnel_key_lens, },
+ [OVS_KEY_ATTR_MPLS] = { .len = sizeof(struct ovs_key_mpls) },
+};
static bool is_all_zero(const u8 *fp, size_t size)
{
int i;
int expected_len;
if (type > OVS_KEY_ATTR_MAX) {
- OVS_NLERR(log,
- "Unknown key attribute (type=%d, max=%d).",
+ OVS_NLERR(log, "Key type %d is out of range max %d",
type, OVS_KEY_ATTR_MAX);
return -EINVAL;
}
if (attrs & (1ULL << type)) {
- OVS_NLERR(log, "Duplicate key attribute (type %d).",
- type);
+ OVS_NLERR(log, "Duplicate key (type %d).", type);
return -EINVAL;
}
- expected_len = ovs_key_lens[type];
- if (nla_len(nla) != expected_len && expected_len != -1) {
- OVS_NLERR(log, "Key attribute has unexpected length "
- "(type=%d, length=%d, expected=%d).", type,
- nla_len(nla), expected_len);
+ expected_len = ovs_key_lens[type].len;
+ if (nla_len(nla) != expected_len && expected_len != OVS_ATTR_NESTED) {
+ OVS_NLERR(log, "Key %d has unexpected len %d expected %d",
+ type, nla_len(nla), expected_len);
return -EINVAL;
}
return __parse_flow_nlattrs(attr, a, attrsp, log, false);
}
+static int genev_tun_opt_from_nlattr(const struct nlattr *a,
+ struct sw_flow_match *match, bool is_mask,
+ bool log)
+{
+ unsigned long opt_key_offset;
+
+ if (nla_len(a) > sizeof(match->key->tun_opts)) {
+ OVS_NLERR(log, "Geneve option length err (len %d, max %zu).",
+ nla_len(a), sizeof(match->key->tun_opts));
+ return -EINVAL;
+ }
+
+ if (nla_len(a) % 4 != 0) {
+ OVS_NLERR(log, "Geneve opt len %d is not a multiple of 4.",
+ nla_len(a));
+ return -EINVAL;
+ }
+
+ /* We need to record the length of the options passed
+ * down, otherwise packets with the same format but
+ * additional options will be silently matched.
+ */
+ if (!is_mask) {
+ SW_FLOW_KEY_PUT(match, tun_opts_len, nla_len(a),
+ false);
+ } else {
+ /* This is somewhat unusual because it looks at
+ * both the key and mask while parsing the
+ * attributes (and by extension assumes the key
+ * is parsed first). Normally, we would verify
+ * that each is the correct length and that the
+ * attributes line up in the validate function.
+ * However, that is difficult because this is
+ * variable length and we won't have the
+ * information later.
+ */
+ if (match->key->tun_opts_len != nla_len(a)) {
+ OVS_NLERR(log, "Geneve option len %d != mask len %d",
+ match->key->tun_opts_len, nla_len(a));
+ return -EINVAL;
+ }
+
+ SW_FLOW_KEY_PUT(match, tun_opts_len, 0xff, true);
+ }
+
+ opt_key_offset = TUN_METADATA_OFFSET(nla_len(a));
+ SW_FLOW_KEY_MEMCPY_OFFSET(match, opt_key_offset, nla_data(a),
+ nla_len(a), is_mask);
+ return 0;
+}
+
+static const struct nla_policy vxlan_opt_policy[OVS_VXLAN_EXT_MAX + 1] = {
+ [OVS_VXLAN_EXT_GBP] = { .type = NLA_U32 },
+};
+
+static int vxlan_tun_opt_from_nlattr(const struct nlattr *a,
+ struct sw_flow_match *match, bool is_mask,
+ bool log)
+{
+ struct nlattr *tb[OVS_VXLAN_EXT_MAX+1];
+ unsigned long opt_key_offset;
+ struct ovs_vxlan_opts opts;
+ int err;
+
+ BUILD_BUG_ON(sizeof(opts) > sizeof(match->key->tun_opts));
+
+ err = nla_parse_nested(tb, OVS_VXLAN_EXT_MAX, a, vxlan_opt_policy);
+ if (err < 0)
+ return err;
+
+ memset(&opts, 0, sizeof(opts));
+
+ if (tb[OVS_VXLAN_EXT_GBP])
+ opts.gbp = nla_get_u32(tb[OVS_VXLAN_EXT_GBP]);
+
+ if (!is_mask)
+ SW_FLOW_KEY_PUT(match, tun_opts_len, sizeof(opts), false);
+ else
+ SW_FLOW_KEY_PUT(match, tun_opts_len, 0xff, true);
+
+ opt_key_offset = TUN_METADATA_OFFSET(sizeof(opts));
+ SW_FLOW_KEY_MEMCPY_OFFSET(match, opt_key_offset, &opts, sizeof(opts),
+ is_mask);
+ return 0;
+}
+
static int ipv4_tun_from_nlattr(const struct nlattr *attr,
struct sw_flow_match *match, bool is_mask,
bool log)
int rem;
bool ttl = false;
__be16 tun_flags = 0;
+ int opts_type = 0;
nla_for_each_nested(a, attr, rem) {
int type = nla_type(a);
- static const u32 ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
- [OVS_TUNNEL_KEY_ATTR_ID] = sizeof(u64),
- [OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = sizeof(u32),
- [OVS_TUNNEL_KEY_ATTR_IPV4_DST] = sizeof(u32),
- [OVS_TUNNEL_KEY_ATTR_TOS] = 1,
- [OVS_TUNNEL_KEY_ATTR_TTL] = 1,
- [OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = 0,
- [OVS_TUNNEL_KEY_ATTR_CSUM] = 0,
- [OVS_TUNNEL_KEY_ATTR_TP_SRC] = sizeof(u16),
- [OVS_TUNNEL_KEY_ATTR_TP_DST] = sizeof(u16),
- [OVS_TUNNEL_KEY_ATTR_OAM] = 0,
- [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS] = -1,
- };
+ int err;
if (type > OVS_TUNNEL_KEY_ATTR_MAX) {
- OVS_NLERR(log,
- "Unknown tunnel attribute (type=%d, max=%d).",
+ OVS_NLERR(log, "Tunnel attr %d out of range max %d",
type, OVS_TUNNEL_KEY_ATTR_MAX);
return -EINVAL;
}
- if (ovs_tunnel_key_lens[type] != nla_len(a) &&
- ovs_tunnel_key_lens[type] != -1) {
- OVS_NLERR(log,
- "Tunnel attribute has unexpected length "
- "(type=%d, length=%d, expected=%d).",
- type, nla_len(a),
- ovs_tunnel_key_lens[type]);
+ if (ovs_tunnel_key_lens[type].len != nla_len(a) &&
+ ovs_tunnel_key_lens[type].len != OVS_ATTR_NESTED) {
+ OVS_NLERR(log, "Tunnel attr %d has unexpected len %d expected %d",
+ type, nla_len(a), ovs_tunnel_key_lens[type].len);
return -EINVAL;
}
tun_flags |= TUNNEL_OAM;
break;
case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
- tun_flags |= TUNNEL_OPTIONS_PRESENT;
- if (nla_len(a) > sizeof(match->key->tun_opts)) {
- OVS_NLERR(log, "Geneve option too long "
- "(len %d, max %zu).",
- nla_len(a),
- sizeof(match->key->tun_opts));
+ if (opts_type) {
+ OVS_NLERR(log, "Multiple metadata blocks provided");
return -EINVAL;
}
- if (nla_len(a) % 4 != 0) {
- OVS_NLERR(log, "Geneve option length is not "
- "a multiple of 4 (len %d).",
- nla_len(a));
+ err = genev_tun_opt_from_nlattr(a, match, is_mask, log);
+ if (err)
+ return err;
+
+ tun_flags |= TUNNEL_GENEVE_OPT;
+ opts_type = type;
+ break;
+ case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS:
+ if (opts_type) {
+ OVS_NLERR(log, "Multiple metadata blocks provided");
return -EINVAL;
}
- /* We need to record the length of the options passed
- * down, otherwise packets with the same format but
- * additional options will be silently matched.
- */
- if (!is_mask) {
- SW_FLOW_KEY_PUT(match, tun_opts_len, nla_len(a),
- false);
- } else {
- /* This is somewhat unusual because it looks at
- * both the key and mask while parsing the
- * attributes (and by extension assumes the key
- * is parsed first). Normally, we would verify
- * that each is the correct length and that the
- * attributes line up in the validate function.
- * However, that is difficult because this is
- * variable length and we won't have the
- * information later.
- */
- if (match->key->tun_opts_len != nla_len(a)) {
- OVS_NLERR(log,
- "Geneve option key length (%d)"
- " is different from mask length (%d).",
- match->key->tun_opts_len,
- nla_len(a));
- return -EINVAL;
- }
-
- SW_FLOW_KEY_PUT(match, tun_opts_len, 0xff,
- true);
- }
+ err = vxlan_tun_opt_from_nlattr(a, match, is_mask, log);
+ if (err)
+ return err;
- SW_FLOW_KEY_MEMCPY_OFFSET(match,
- (unsigned long)GENEVE_OPTS((struct sw_flow_key *)0,
- nla_len(a)),
- nla_data(a), nla_len(a), is_mask);
+ tun_flags |= TUNNEL_VXLAN_OPT;
+ opts_type = type;
break;
default:
- OVS_NLERR(log, "Unknown IPv4 tunnel attribute (%d).",
+ OVS_NLERR(log, "Unknown IPv4 tunnel attribute %d",
type);
return -EINVAL;
}
if (!is_mask) {
if (!match->key->tun_key.ipv4_dst) {
- OVS_NLERR(log,
- "IPv4 tunnel destination address is zero.");
+ OVS_NLERR(log, "IPv4 tunnel dst address is zero");
return -EINVAL;
}
}
}
+ return opts_type;
+}
+
+static int vxlan_opt_to_nlattr(struct sk_buff *skb,
+ const void *tun_opts, int swkey_tun_opts_len)
+{
+ const struct ovs_vxlan_opts *opts = tun_opts;
+ struct nlattr *nla;
+
+ nla = nla_nest_start(skb, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS);
+ if (!nla)
+ return -EMSGSIZE;
+
+ if (nla_put_u32(skb, OVS_VXLAN_EXT_GBP, opts->gbp) < 0)
+ return -EMSGSIZE;
+
+ nla_nest_end(skb, nla);
return 0;
}
static int __ipv4_tun_to_nlattr(struct sk_buff *skb,
const struct ovs_key_ipv4_tunnel *output,
- const struct geneve_opt *tun_opts,
- int swkey_tun_opts_len)
+ const void *tun_opts, int swkey_tun_opts_len)
{
if (output->tun_flags & TUNNEL_KEY &&
nla_put_be64(skb, OVS_TUNNEL_KEY_ATTR_ID, output->tun_id))
return -EMSGSIZE;
if (output->ipv4_src &&
- nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, output->ipv4_src))
+ nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, output->ipv4_src))
return -EMSGSIZE;
if (output->ipv4_dst &&
- nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_DST, output->ipv4_dst))
+ nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_DST, output->ipv4_dst))
return -EMSGSIZE;
if (output->ipv4_tos &&
- nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TOS, output->ipv4_tos))
+ nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TOS, output->ipv4_tos))
return -EMSGSIZE;
if (nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TTL, output->ipv4_ttl))
return -EMSGSIZE;
if ((output->tun_flags & TUNNEL_DONT_FRAGMENT) &&
- nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT))
+ nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT))
return -EMSGSIZE;
if ((output->tun_flags & TUNNEL_CSUM) &&
- nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_CSUM))
+ nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_CSUM))
return -EMSGSIZE;
if (output->tp_src &&
- nla_put_be16(skb, OVS_TUNNEL_KEY_ATTR_TP_SRC, output->tp_src))
+ nla_put_be16(skb, OVS_TUNNEL_KEY_ATTR_TP_SRC, output->tp_src))
return -EMSGSIZE;
if (output->tp_dst &&
- nla_put_be16(skb, OVS_TUNNEL_KEY_ATTR_TP_DST, output->tp_dst))
+ nla_put_be16(skb, OVS_TUNNEL_KEY_ATTR_TP_DST, output->tp_dst))
return -EMSGSIZE;
if ((output->tun_flags & TUNNEL_OAM) &&
- nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_OAM))
- return -EMSGSIZE;
- if (tun_opts &&
- nla_put(skb, OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS,
- swkey_tun_opts_len, tun_opts))
+ nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_OAM))
return -EMSGSIZE;
+ if (tun_opts) {
+ if (output->tun_flags & TUNNEL_GENEVE_OPT &&
+ nla_put(skb, OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS,
+ swkey_tun_opts_len, tun_opts))
+ return -EMSGSIZE;
+ else if (output->tun_flags & TUNNEL_VXLAN_OPT &&
+ vxlan_opt_to_nlattr(skb, tun_opts, swkey_tun_opts_len))
+ return -EMSGSIZE;
+ }
return 0;
}
-
static int ipv4_tun_to_nlattr(struct sk_buff *skb,
const struct ovs_key_ipv4_tunnel *output,
- const struct geneve_opt *tun_opts,
- int swkey_tun_opts_len)
+ const void *tun_opts, int swkey_tun_opts_len)
{
struct nlattr *nla;
int err;
if (is_mask) {
in_port = 0xffffffff; /* Always exact match in_port. */
} else if (in_port >= DP_MAX_PORTS) {
- OVS_NLERR(log,
- "Input port (%d) exceeds maximum allowable (%d).",
+ OVS_NLERR(log, "Port %d exceeds max allowable %d",
in_port, DP_MAX_PORTS);
return -EINVAL;
}
}
if (*attrs & (1ULL << OVS_KEY_ATTR_TUNNEL)) {
if (ipv4_tun_from_nlattr(a[OVS_KEY_ATTR_TUNNEL], match,
- is_mask, log))
+ is_mask, log) < 0)
return -EINVAL;
*attrs &= ~(1ULL << OVS_KEY_ATTR_TUNNEL);
}
tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
if (!(tci & htons(VLAN_TAG_PRESENT))) {
if (is_mask)
- OVS_NLERR(log,
- "VLAN TCI mask does not have exact match for VLAN_TAG_PRESENT bit.");
+ OVS_NLERR(log, "VLAN TCI mask does not have exact match for VLAN_TAG_PRESENT bit.");
else
- OVS_NLERR(log,
- "VLAN TCI does not have VLAN_TAG_PRESENT bit set.");
+ OVS_NLERR(log, "VLAN TCI does not have VLAN_TAG_PRESENT bit set.");
return -EINVAL;
}
/* Always exact match EtherType. */
eth_type = htons(0xffff);
} else if (ntohs(eth_type) < ETH_P_802_3_MIN) {
- OVS_NLERR(log,
- "EtherType is less than minimum (type=%x, min=%x).",
+ OVS_NLERR(log, "EtherType %x is less than min %x",
ntohs(eth_type), ETH_P_802_3_MIN);
return -EINVAL;
}
ipv4_key = nla_data(a[OVS_KEY_ATTR_IPV4]);
if (!is_mask && ipv4_key->ipv4_frag > OVS_FRAG_TYPE_MAX) {
- OVS_NLERR(log,
- "Unknown IPv4 fragment type (value=%d, max=%d).",
+ OVS_NLERR(log, "IPv4 frag type %d is out of range max %d",
ipv4_key->ipv4_frag, OVS_FRAG_TYPE_MAX);
return -EINVAL;
}
ipv6_key = nla_data(a[OVS_KEY_ATTR_IPV6]);
if (!is_mask && ipv6_key->ipv6_frag > OVS_FRAG_TYPE_MAX) {
- OVS_NLERR(log,
- "Unknown IPv6 fragment type (value=%d, max=%d).",
+ OVS_NLERR(log, "IPv6 frag type %d is out of range max %d",
ipv6_key->ipv6_frag, OVS_FRAG_TYPE_MAX);
return -EINVAL;
}
- if (ipv6_key->ipv6_label & htonl(0xFFF00000)) {
+ if (!is_mask && ipv6_key->ipv6_label & htonl(0xFFF00000)) {
OVS_NLERR(log,
"Invalid IPv6 flow label value (value=%x, max=%x).",
ntohl(ipv6_key->ipv6_label), (1 << 20) - 1);
}
if (attrs != 0) {
- OVS_NLERR(log, "Unknown key attributes (%llx).",
+ OVS_NLERR(log, "Unknown key attributes %llx",
(unsigned long long)attrs);
return -EINVAL;
}
return 0;
}
-static void nlattr_set(struct nlattr *attr, u8 val, bool is_attr_mask_key)
+static void nlattr_set(struct nlattr *attr, u8 val,
+ const struct ovs_len_tbl *tbl)
{
struct nlattr *nla;
int rem;
/* The nlattr stream should already have been validated */
nla_for_each_nested(nla, attr, rem) {
- /* We assume that ovs_key_lens[type] == -1 means that type is a
- * nested attribute
- */
- if (is_attr_mask_key && ovs_key_lens[nla_type(nla)] == -1)
- nlattr_set(nla, val, false);
+ if (tbl && tbl[nla_type(nla)].len == OVS_ATTR_NESTED)
+ nlattr_set(nla, val, tbl[nla_type(nla)].next);
else
memset(nla_data(nla), val, nla_len(nla));
}
static void mask_set_nlattr(struct nlattr *attr, u8 val)
{
- nlattr_set(attr, val, true);
+ nlattr_set(attr, val, ovs_key_lens);
}
/**
} else if (!tci) {
/* Corner case for truncated 802.1Q header. */
if (nla_len(encap)) {
- OVS_NLERR(log,
- "Truncated 802.1Q header has non-zero encap attribute.");
+ OVS_NLERR(log, "Truncated 802.1Q header has non-zero encap attribute.");
return -EINVAL;
}
} else {
- OVS_NLERR(log,
- "Encap attribute is set for a non-VLAN frame.");
+ OVS_NLERR(log, "Encap attr is set for non-VLAN frame");
return -EINVAL;
}
}
return err;
if (match->mask) {
-
if (!nla_mask) {
/* Create an exact match mask. We need to set to 0xff
* all the 'match->mask' fields that have been touched
* 'match->mask', because padding bytes and fields not
* specified in 'match->key' should be left to 0.
* Instead, we use a stream of netlink attributes,
- * copied from 'key' and set to 0xff: ovs_key_from_nlattrs()
- * will take care of filling 'match->mask'
- * appropriately.
+ * copied from 'key' and set to 0xff.
+ * ovs_key_from_nlattrs() will take care of filling
+ * 'match->mask' appropriately.
*/
newmask = kmemdup(nla_key,
nla_total_size(nla_len(nla_key)),
__be16 tci = 0;
if (!encap_valid) {
- OVS_NLERR(log,
- "Encap mask attribute is set for non-VLAN frame.");
+ OVS_NLERR(log, "Encap mask attribute is set for non-VLAN frame.");
err = -EINVAL;
goto free_newmask;
}
if (err)
goto free_newmask;
} else {
- OVS_NLERR(log,
- "VLAN frames must have an exact match on the TPID (mask=%x).",
+ OVS_NLERR(log, "VLAN frames must have an exact match on the TPID (mask=%x).",
ntohs(eth_type));
err = -EINVAL;
goto free_newmask;
tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
if (!(tci & htons(VLAN_TAG_PRESENT))) {
- OVS_NLERR(log,
- "VLAN tag present bit must have an exact match (tci_mask=%x).",
+ OVS_NLERR(log, "VLAN tag present bit must have an exact match (tci_mask=%x).",
ntohs(tci));
err = -EINVAL;
goto free_newmask;
* get the metadata, that is, the parts of the flow key that cannot be
* extracted from the packet itself.
*/
+
int ovs_nla_get_flow_metadata(const struct nlattr *attr,
struct sw_flow_key *key,
bool log)
struct nlattr *nla, *encap;
bool is_mask = (swkey != output);
- if (nla_put_u32(skb, OVS_KEY_ATTR_DP_HASH, output->ovs_flow_hash))
+ if (nla_put_u32(skb, OVS_KEY_ATTR_RECIRC_ID, output->recirc_id))
goto nla_put_failure;
- if (nla_put_u32(skb, OVS_KEY_ATTR_RECIRC_ID, output->recirc_id))
+ if (nla_put_u32(skb, OVS_KEY_ATTR_DP_HASH, output->ovs_flow_hash))
goto nla_put_failure;
if (nla_put_u32(skb, OVS_KEY_ATTR_PRIORITY, output->phy.priority))
goto nla_put_failure;
if ((swkey->tun_key.ipv4_dst || is_mask)) {
- const struct geneve_opt *opts = NULL;
+ const void *opts = NULL;
if (output->tun_key.tun_flags & TUNNEL_OPTIONS_PRESENT)
- opts = GENEVE_OPTS(output, swkey->tun_opts_len);
+ opts = TUN_METADATA_OPTS(output, swkey->tun_opts_len);
if (ipv4_tun_to_nlattr(skb, &output->tun_key, opts,
- swkey->tun_opts_len))
+ swkey->tun_opts_len))
goto nla_put_failure;
}
struct sw_flow_actions *sfa;
if (size > MAX_ACTIONS_BUFSIZE) {
- OVS_NLERR(log, "Flow action size (%u bytes) exceeds maximum "
- "(%u bytes)", size, MAX_ACTIONS_BUFSIZE);
+ OVS_NLERR(log, "Flow action size %u bytes exceeds max", size);
return ERR_PTR(-EINVAL);
}
return (struct nlattr *) ((unsigned char *)(*sfa) + next_offset);
}
-static struct nlattr *__add_action(struct sw_flow_actions **sfa, int attrtype,
- void *data, int len, bool log)
+static struct nlattr *__add_action(struct sw_flow_actions **sfa,
+ int attrtype, void *data, int len, bool log)
{
struct nlattr *a;
}
}
+static int validate_geneve_opts(struct sw_flow_key *key)
+{
+ struct geneve_opt *option;
+ int opts_len = key->tun_opts_len;
+ bool crit_opt = false;
+
+ option = (struct geneve_opt *)TUN_METADATA_OPTS(key, key->tun_opts_len);
+ while (opts_len > 0) {
+ int len;
+
+ if (opts_len < sizeof(*option))
+ return -EINVAL;
+
+ len = sizeof(*option) + option->length * 4;
+ if (len > opts_len)
+ return -EINVAL;
+
+ crit_opt |= !!(option->type & GENEVE_CRIT_OPT_TYPE);
+
+ option = (struct geneve_opt *)((u8 *)option + len);
+ opts_len -= len;
+ };
+
+ key->tun_key.tun_flags |= crit_opt ? TUNNEL_CRIT_OPT : 0;
+
+ return 0;
+}
+
static int validate_and_copy_set_tun(const struct nlattr *attr,
struct sw_flow_actions **sfa, bool log)
{
struct sw_flow_key key;
struct ovs_tunnel_info *tun_info;
struct nlattr *a;
- int err, start;
+ int start, opts_type;
+ int err = 0;
ovs_match_init(&match, &key, NULL);
- err = ipv4_tun_from_nlattr(nla_data(attr), &match, false, log);
- if (err)
- return err;
+ opts_type = ipv4_tun_from_nlattr(nla_data(attr), &match, false, log);
+ if (opts_type < 0)
+ return opts_type;
if (key.tun_opts_len) {
- struct geneve_opt *option = GENEVE_OPTS(&key,
- key.tun_opts_len);
- int opts_len = key.tun_opts_len;
- bool crit_opt = false;
-
- while (opts_len > 0) {
- int len;
-
- if (opts_len < sizeof(*option))
- return -EINVAL;
-
- len = sizeof(*option) + option->length * 4;
- if (len > opts_len)
- return -EINVAL;
-
- crit_opt |= !!(option->type & GENEVE_CRIT_OPT_TYPE);
-
- option = (struct geneve_opt *)((u8 *)option + len);
- opts_len -= len;
- };
-
- key.tun_key.tun_flags |= crit_opt ? TUNNEL_CRIT_OPT : 0;
+ switch (opts_type) {
+ case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
+ err = validate_geneve_opts(&key);
+ if (err < 0)
+ return err;
+ break;
+ case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS:
+ break;
+ }
};
start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SET, log);
* everything else will go away after flow setup. We can append
* it to tun_info and then point there.
*/
- memcpy((tun_info + 1), GENEVE_OPTS(&key, key.tun_opts_len),
- key.tun_opts_len);
- tun_info->options = (struct geneve_opt *)(tun_info + 1);
+ memcpy((tun_info + 1),
+ TUN_METADATA_OPTS(&key, key.tun_opts_len), key.tun_opts_len);
+ tun_info->options = (tun_info + 1);
+
} else {
tun_info->options = NULL;
}
return -EINVAL;
if (key_type > OVS_KEY_ATTR_MAX ||
- (ovs_key_lens[key_type] != nla_len(ovs_key) &&
- ovs_key_lens[key_type] != -1))
+ (ovs_key_lens[key_type].len != nla_len(ovs_key) &&
+ ovs_key_lens[key_type].len != OVS_ATTR_NESTED))
return -EINVAL;
switch (key_type) {
__be16 eth_type, __be16 vlan_tci, bool log)
{
const struct nlattr *a;
- bool out_tnl_port = false;
int rem, err;
if (depth >= SAMPLE_ACTION_DEPTH)
case OVS_ACTION_ATTR_OUTPUT:
if (nla_get_u32(a) >= DP_MAX_PORTS)
return -EINVAL;
- out_tnl_port = false;
+
break;
case OVS_ACTION_ATTR_HASH: {
case OVS_ACTION_ATTR_PUSH_MPLS: {
const struct ovs_action_push_mpls *mpls = nla_data(a);
- /* Networking stack do not allow simultaneous Tunnel
- * and MPLS GSO.
- */
- if (out_tnl_port)
- return -EINVAL;
-
if (!eth_p_mpls(mpls->mpls_ethertype))
return -EINVAL;
+
/* Prohibit push MPLS other than to a white list
* for packets that have a known tag order.
*/
case OVS_ACTION_ATTR_SET:
err = validate_set(a, key, sfa,
- &out_tnl_port, eth_type, log);
+ &skip_copy, eth_type, log);
if (err)
return err;
- skip_copy = out_tnl_port;
break;
case OVS_ACTION_ATTR_SAMPLE:
break;
default:
+ OVS_NLERR(log, "Unknown Action type %d", type);
return -EINVAL;
}
if (!skip_copy) {
projects / cascardo / ovs.git / blobdiff