]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - net/openvswitch/flow_netlink.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[karo-tx-linux.git] / net / openvswitch / flow_netlink.c
index 38536c137c54d0d4ebcebcce613fefdb89799b5a..907d6fd28ede695cc1b876570c101883ed0b4b0e 100644 (file)
@@ -262,8 +262,8 @@ size_t ovs_tun_key_attr_size(void)
         * updating this function.
         */
        return    nla_total_size(8)    /* OVS_TUNNEL_KEY_ATTR_ID */
-               + nla_total_size(4)    /* OVS_TUNNEL_KEY_ATTR_IPV4_SRC */
-               + nla_total_size(4)    /* OVS_TUNNEL_KEY_ATTR_IPV4_DST */
+               + nla_total_size(16)   /* OVS_TUNNEL_KEY_ATTR_IPV[46]_SRC */
+               + nla_total_size(16)   /* OVS_TUNNEL_KEY_ATTR_IPV[46]_DST */
                + nla_total_size(1)    /* OVS_TUNNEL_KEY_ATTR_TOS */
                + nla_total_size(1)    /* OVS_TUNNEL_KEY_ATTR_TTL */
                + nla_total_size(0)    /* OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT */
@@ -323,6 +323,8 @@ static const struct ovs_len_tbl ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1]
        [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS]   = { .len = OVS_ATTR_VARIABLE },
        [OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS]    = { .len = OVS_ATTR_NESTED,
                                                .next = ovs_vxlan_ext_key_lens },
+       [OVS_TUNNEL_KEY_ATTR_IPV6_SRC]      = { .len = sizeof(struct in6_addr) },
+       [OVS_TUNNEL_KEY_ATTR_IPV6_DST]      = { .len = sizeof(struct in6_addr) },
 };
 
 /* The size of the argument for each %OVS_KEY_ATTR_* Netlink attribute.  */
@@ -542,15 +544,15 @@ static int vxlan_tun_opt_from_nlattr(const struct nlattr *attr,
        return 0;
 }
 
-static int ipv4_tun_from_nlattr(const struct nlattr *attr,
-                               struct sw_flow_match *match, bool is_mask,
-                               bool log)
+static int ip_tun_from_nlattr(const struct nlattr *attr,
+                             struct sw_flow_match *match, bool is_mask,
+                             bool log)
 {
-       struct nlattr *a;
-       int rem;
-       bool ttl = false;
+       bool ttl = false, ipv4 = false, ipv6 = false;
        __be16 tun_flags = 0;
        int opts_type = 0;
+       struct nlattr *a;
+       int rem;
 
        nla_for_each_nested(a, attr, rem) {
                int type = nla_type(a);
@@ -578,10 +580,22 @@ static int ipv4_tun_from_nlattr(const struct nlattr *attr,
                case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
                        SW_FLOW_KEY_PUT(match, tun_key.u.ipv4.src,
                                        nla_get_in_addr(a), is_mask);
+                       ipv4 = true;
                        break;
                case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
                        SW_FLOW_KEY_PUT(match, tun_key.u.ipv4.dst,
                                        nla_get_in_addr(a), is_mask);
+                       ipv4 = true;
+                       break;
+               case OVS_TUNNEL_KEY_ATTR_IPV6_SRC:
+                       SW_FLOW_KEY_PUT(match, tun_key.u.ipv6.dst,
+                                       nla_get_in6_addr(a), is_mask);
+                       ipv6 = true;
+                       break;
+               case OVS_TUNNEL_KEY_ATTR_IPV6_DST:
+                       SW_FLOW_KEY_PUT(match, tun_key.u.ipv6.dst,
+                                       nla_get_in6_addr(a), is_mask);
+                       ipv6 = true;
                        break;
                case OVS_TUNNEL_KEY_ATTR_TOS:
                        SW_FLOW_KEY_PUT(match, tun_key.tos,
@@ -636,28 +650,46 @@ static int ipv4_tun_from_nlattr(const struct nlattr *attr,
                        opts_type = type;
                        break;
                default:
-                       OVS_NLERR(log, "Unknown IPv4 tunnel attribute %d",
+                       OVS_NLERR(log, "Unknown IP tunnel attribute %d",
                                  type);
                        return -EINVAL;
                }
        }
 
        SW_FLOW_KEY_PUT(match, tun_key.tun_flags, tun_flags, is_mask);
+       if (is_mask)
+               SW_FLOW_KEY_MEMSET_FIELD(match, tun_proto, 0xff, true);
+       else
+               SW_FLOW_KEY_PUT(match, tun_proto, ipv6 ? AF_INET6 : AF_INET,
+                               false);
 
        if (rem > 0) {
-               OVS_NLERR(log, "IPv4 tunnel attribute has %d unknown bytes.",
+               OVS_NLERR(log, "IP tunnel attribute has %d unknown bytes.",
                          rem);
                return -EINVAL;
        }
 
+       if (ipv4 && ipv6) {
+               OVS_NLERR(log, "Mixed IPv4 and IPv6 tunnel attributes");
+               return -EINVAL;
+       }
+
        if (!is_mask) {
-               if (!match->key->tun_key.u.ipv4.dst) {
+               if (!ipv4 && !ipv6) {
+                       OVS_NLERR(log, "IP tunnel dst address not specified");
+                       return -EINVAL;
+               }
+               if (ipv4 && !match->key->tun_key.u.ipv4.dst) {
                        OVS_NLERR(log, "IPv4 tunnel dst address is zero");
                        return -EINVAL;
                }
+               if (ipv6 && ipv6_addr_any(&match->key->tun_key.u.ipv6.dst)) {
+                       OVS_NLERR(log, "IPv6 tunnel dst address is zero");
+                       return -EINVAL;
+               }
 
                if (!ttl) {
-                       OVS_NLERR(log, "IPv4 tunnel TTL not specified.");
+                       OVS_NLERR(log, "IP tunnel TTL not specified.");
                        return -EINVAL;
                }
        }
@@ -682,21 +714,36 @@ static int vxlan_opt_to_nlattr(struct sk_buff *skb,
        return 0;
 }
 
-static int __ipv4_tun_to_nlattr(struct sk_buff *skb,
-                               const struct ip_tunnel_key *output,
-                               const void *tun_opts, int swkey_tun_opts_len)
+static int __ip_tun_to_nlattr(struct sk_buff *skb,
+                             const struct ip_tunnel_key *output,
+                             const void *tun_opts, int swkey_tun_opts_len,
+                             unsigned short tun_proto)
 {
        if (output->tun_flags & TUNNEL_KEY &&
            nla_put_be64(skb, OVS_TUNNEL_KEY_ATTR_ID, output->tun_id))
                return -EMSGSIZE;
-       if (output->u.ipv4.src &&
-           nla_put_in_addr(skb, OVS_TUNNEL_KEY_ATTR_IPV4_SRC,
-                           output->u.ipv4.src))
-               return -EMSGSIZE;
-       if (output->u.ipv4.dst &&
-           nla_put_in_addr(skb, OVS_TUNNEL_KEY_ATTR_IPV4_DST,
-                           output->u.ipv4.dst))
-               return -EMSGSIZE;
+       switch (tun_proto) {
+       case AF_INET:
+               if (output->u.ipv4.src &&
+                   nla_put_in_addr(skb, OVS_TUNNEL_KEY_ATTR_IPV4_SRC,
+                                   output->u.ipv4.src))
+                       return -EMSGSIZE;
+               if (output->u.ipv4.dst &&
+                   nla_put_in_addr(skb, OVS_TUNNEL_KEY_ATTR_IPV4_DST,
+                                   output->u.ipv4.dst))
+                       return -EMSGSIZE;
+               break;
+       case AF_INET6:
+               if (!ipv6_addr_any(&output->u.ipv6.src) &&
+                   nla_put_in6_addr(skb, OVS_TUNNEL_KEY_ATTR_IPV6_SRC,
+                                    &output->u.ipv6.src))
+                       return -EMSGSIZE;
+               if (!ipv6_addr_any(&output->u.ipv6.dst) &&
+                   nla_put_in6_addr(skb, OVS_TUNNEL_KEY_ATTR_IPV6_DST,
+                                    &output->u.ipv6.dst))
+                       return -EMSGSIZE;
+               break;
+       }
        if (output->tos &&
            nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TOS, output->tos))
                return -EMSGSIZE;
@@ -730,9 +777,10 @@ static int __ipv4_tun_to_nlattr(struct sk_buff *skb,
        return 0;
 }
 
-static int ipv4_tun_to_nlattr(struct sk_buff *skb,
-                             const struct ip_tunnel_key *output,
-                             const void *tun_opts, int swkey_tun_opts_len)
+static int ip_tun_to_nlattr(struct sk_buff *skb,
+                           const struct ip_tunnel_key *output,
+                           const void *tun_opts, int swkey_tun_opts_len,
+                           unsigned short tun_proto)
 {
        struct nlattr *nla;
        int err;
@@ -741,7 +789,8 @@ static int ipv4_tun_to_nlattr(struct sk_buff *skb,
        if (!nla)
                return -EMSGSIZE;
 
-       err = __ipv4_tun_to_nlattr(skb, output, tun_opts, swkey_tun_opts_len);
+       err = __ip_tun_to_nlattr(skb, output, tun_opts, swkey_tun_opts_len,
+                                tun_proto);
        if (err)
                return err;
 
@@ -752,9 +801,10 @@ static int ipv4_tun_to_nlattr(struct sk_buff *skb,
 int ovs_nla_put_tunnel_info(struct sk_buff *skb,
                            struct ip_tunnel_info *tun_info)
 {
-       return __ipv4_tun_to_nlattr(skb, &tun_info->key,
-                                   ip_tunnel_info_opts(tun_info),
-                                   tun_info->options_len);
+       return __ip_tun_to_nlattr(skb, &tun_info->key,
+                                 ip_tunnel_info_opts(tun_info),
+                                 tun_info->options_len,
+                                 ip_tunnel_info_af(tun_info));
 }
 
 static int metadata_from_nlattrs(struct net *net, struct sw_flow_match *match,
@@ -805,8 +855,8 @@ static int metadata_from_nlattrs(struct net *net, struct sw_flow_match *match,
                *attrs &= ~(1 << OVS_KEY_ATTR_SKB_MARK);
        }
        if (*attrs & (1 << OVS_KEY_ATTR_TUNNEL)) {
-               if (ipv4_tun_from_nlattr(a[OVS_KEY_ATTR_TUNNEL], match,
-                                        is_mask, log) < 0)
+               if (ip_tun_from_nlattr(a[OVS_KEY_ATTR_TUNNEL], match,
+                                      is_mask, log) < 0)
                        return -EINVAL;
                *attrs &= ~(1 << OVS_KEY_ATTR_TUNNEL);
        }
@@ -1202,7 +1252,7 @@ int ovs_nla_get_match(struct net *net, struct sw_flow_match *match,
                        /* The userspace does not send tunnel attributes that
                         * are 0, but we should not wildcard them nonetheless.
                         */
-                       if (match->key->tun_key.u.ipv4.dst)
+                       if (match->key->tun_proto)
                                SW_FLOW_KEY_MEMSET_FIELD(match, tun_key,
                                                         0xff, true);
 
@@ -1375,14 +1425,14 @@ static int __ovs_nla_put_key(const struct sw_flow_key *swkey,
        if (nla_put_u32(skb, OVS_KEY_ATTR_PRIORITY, output->phy.priority))
                goto nla_put_failure;
 
-       if ((swkey->tun_key.u.ipv4.dst || is_mask)) {
+       if ((swkey->tun_proto || is_mask)) {
                const void *opts = NULL;
 
                if (output->tun_key.tun_flags & TUNNEL_OPTIONS_PRESENT)
                        opts = TUN_METADATA_OPTS(output, swkey->tun_opts_len);
 
-               if (ipv4_tun_to_nlattr(skb, &output->tun_key, opts,
-                                      swkey->tun_opts_len))
+               if (ip_tun_to_nlattr(skb, &output->tun_key, opts,
+                                    swkey->tun_opts_len, swkey->tun_proto))
                        goto nla_put_failure;
        }
 
@@ -1885,7 +1935,7 @@ static int validate_and_copy_set_tun(const struct nlattr *attr,
        int err = 0, start, opts_type;
 
        ovs_match_init(&match, &key, NULL);
-       opts_type = ipv4_tun_from_nlattr(nla_data(attr), &match, false, log);
+       opts_type = ip_tun_from_nlattr(nla_data(attr), &match, false, log);
        if (opts_type < 0)
                return opts_type;
 
@@ -1921,6 +1971,8 @@ static int validate_and_copy_set_tun(const struct nlattr *attr,
 
        tun_info = &tun_dst->u.tun_info;
        tun_info->mode = IP_TUNNEL_INFO_TX;
+       if (key.tun_proto == AF_INET6)
+               tun_info->mode |= IP_TUNNEL_INFO_IPV6;
        tun_info->key = key.tun_key;
 
        /* We need to store the options in the action itself since