From patchwork Wed Feb 13 17:41:46 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vlad Yasevich X-Patchwork-Id: 220208 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id B33652C0292 for ; Thu, 14 Feb 2013 04:42:22 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964850Ab3BMRmL (ORCPT ); Wed, 13 Feb 2013 12:42:11 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54522 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964828Ab3BMRmJ (ORCPT ); Wed, 13 Feb 2013 12:42:09 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r1DHg2lk003705 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 13 Feb 2013 12:42:03 -0500 Received: from vyasevic.redhat.com (ovpn-113-148.phx2.redhat.com [10.3.113.148]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r1DHfnXY013734; Wed, 13 Feb 2013 12:42:01 -0500 From: Vlad Yasevich To: netdev@vger.kernel.org Cc: bridge@lists.linux-foundation.org, shemminger@vyatta.com, davem@davemloft.net, mirqus@gmail.com Subject: [PATCH v10 net-next 09/12] bridge: Add vlan id to multicast groups Date: Wed, 13 Feb 2013 12:41:46 -0500 Message-Id: <1360777309-25522-10-git-send-email-vyasevic@redhat.com> In-Reply-To: <1360777309-25522-1-git-send-email-vyasevic@redhat.com> References: <1360777309-25522-1-git-send-email-vyasevic@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add vlan_id to multicasts groups so that we know which vlan each group belongs to and can correctly forward to appropriate vlan. Signed-off-by: Vlad Yasevich --- net/bridge/br_multicast.c | 69 ++++++++++++++++++++++++++++++++------------- net/bridge/br_private.h | 1 + 2 files changed, 50 insertions(+), 20 deletions(-) diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 6d6f265..7d886b0 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -39,6 +39,8 @@ static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b) { if (a->proto != b->proto) return 0; + if (a->vid != b->vid) + return 0; switch (a->proto) { case htons(ETH_P_IP): return a->u.ip4 == b->u.ip4; @@ -50,16 +52,19 @@ static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b) return 0; } -static inline int __br_ip4_hash(struct net_bridge_mdb_htable *mdb, __be32 ip) +static inline int __br_ip4_hash(struct net_bridge_mdb_htable *mdb, __be32 ip, + __u16 vid) { - return jhash_1word(mdb->secret, (__force u32)ip) & (mdb->max - 1); + return jhash_2words((__force u32)ip, vid, mdb->secret) & (mdb->max - 1); } #if IS_ENABLED(CONFIG_IPV6) static inline int __br_ip6_hash(struct net_bridge_mdb_htable *mdb, - const struct in6_addr *ip) + const struct in6_addr *ip, + __u16 vid) { - return jhash2((__force u32 *)ip->s6_addr32, 4, mdb->secret) & (mdb->max - 1); + return jhash_2words(ipv6_addr_hash(ip), vid, + mdb->secret) & (mdb->max - 1); } #endif @@ -68,10 +73,10 @@ static inline int br_ip_hash(struct net_bridge_mdb_htable *mdb, { switch (ip->proto) { case htons(ETH_P_IP): - return __br_ip4_hash(mdb, ip->u.ip4); + return __br_ip4_hash(mdb, ip->u.ip4, ip->vid); #if IS_ENABLED(CONFIG_IPV6) case htons(ETH_P_IPV6): - return __br_ip6_hash(mdb, &ip->u.ip6); + return __br_ip6_hash(mdb, &ip->u.ip6, ip->vid); #endif } return 0; @@ -101,24 +106,27 @@ struct net_bridge_mdb_entry *br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, } static struct net_bridge_mdb_entry *br_mdb_ip4_get( - struct net_bridge_mdb_htable *mdb, __be32 dst) + struct net_bridge_mdb_htable *mdb, __be32 dst, __u16 vid) { struct br_ip br_dst; br_dst.u.ip4 = dst; br_dst.proto = htons(ETH_P_IP); + br_dst.vid = vid; return br_mdb_ip_get(mdb, &br_dst); } #if IS_ENABLED(CONFIG_IPV6) static struct net_bridge_mdb_entry *br_mdb_ip6_get( - struct net_bridge_mdb_htable *mdb, const struct in6_addr *dst) + struct net_bridge_mdb_htable *mdb, const struct in6_addr *dst, + __u16 vid) { struct br_ip br_dst; br_dst.u.ip6 = *dst; br_dst.proto = htons(ETH_P_IPV6); + br_dst.vid = vid; return br_mdb_ip_get(mdb, &br_dst); } @@ -694,7 +702,8 @@ err: static int br_ip4_multicast_add_group(struct net_bridge *br, struct net_bridge_port *port, - __be32 group) + __be32 group, + __u16 vid) { struct br_ip br_group; @@ -703,6 +712,7 @@ static int br_ip4_multicast_add_group(struct net_bridge *br, br_group.u.ip4 = group; br_group.proto = htons(ETH_P_IP); + br_group.vid = vid; return br_multicast_add_group(br, port, &br_group); } @@ -710,7 +720,8 @@ static int br_ip4_multicast_add_group(struct net_bridge *br, #if IS_ENABLED(CONFIG_IPV6) static int br_ip6_multicast_add_group(struct net_bridge *br, struct net_bridge_port *port, - const struct in6_addr *group) + const struct in6_addr *group, + __u16 vid) { struct br_ip br_group; @@ -719,6 +730,7 @@ static int br_ip6_multicast_add_group(struct net_bridge *br, br_group.u.ip6 = *group; br_group.proto = htons(ETH_P_IPV6); + br_group.vid = vid; return br_multicast_add_group(br, port, &br_group); } @@ -895,10 +907,12 @@ static int br_ip4_multicast_igmp3_report(struct net_bridge *br, int type; int err = 0; __be32 group; + u16 vid = 0; if (!pskb_may_pull(skb, sizeof(*ih))) return -EINVAL; + br_vlan_get_tag(skb, &vid); ih = igmpv3_report_hdr(skb); num = ntohs(ih->ngrec); len = sizeof(*ih); @@ -930,7 +944,7 @@ static int br_ip4_multicast_igmp3_report(struct net_bridge *br, continue; } - err = br_ip4_multicast_add_group(br, port, group); + err = br_ip4_multicast_add_group(br, port, group, vid); if (err) break; } @@ -949,10 +963,12 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br, int len; int num; int err = 0; + u16 vid = 0; if (!pskb_may_pull(skb, sizeof(*icmp6h))) return -EINVAL; + br_vlan_get_tag(skb, &vid); icmp6h = icmp6_hdr(skb); num = ntohs(icmp6h->icmp6_dataun.un_data16[1]); len = sizeof(*icmp6h); @@ -990,7 +1006,8 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br, continue; } - err = br_ip6_multicast_add_group(br, port, &grec->grec_mca); + err = br_ip6_multicast_add_group(br, port, &grec->grec_mca, + vid); if (!err) break; } @@ -1074,6 +1091,7 @@ static int br_ip4_multicast_query(struct net_bridge *br, unsigned long now = jiffies; __be32 group; int err = 0; + u16 vid = 0; spin_lock(&br->multicast_lock); if (!netif_running(br->dev) || @@ -1108,7 +1126,8 @@ static int br_ip4_multicast_query(struct net_bridge *br, if (!group) goto out; - mp = br_mdb_ip4_get(mlock_dereference(br->mdb, br), group); + br_vlan_get_tag(skb, &vid); + mp = br_mdb_ip4_get(mlock_dereference(br->mdb, br), group, vid); if (!mp) goto out; @@ -1149,6 +1168,7 @@ static int br_ip6_multicast_query(struct net_bridge *br, unsigned long now = jiffies; const struct in6_addr *group = NULL; int err = 0; + u16 vid = 0; spin_lock(&br->multicast_lock); if (!netif_running(br->dev) || @@ -1180,7 +1200,8 @@ static int br_ip6_multicast_query(struct net_bridge *br, if (!group) goto out; - mp = br_mdb_ip6_get(mlock_dereference(br->mdb, br), group); + br_vlan_get_tag(skb, &vid); + mp = br_mdb_ip6_get(mlock_dereference(br->mdb, br), group, vid); if (!mp) goto out; @@ -1286,7 +1307,8 @@ out: static void br_ip4_multicast_leave_group(struct net_bridge *br, struct net_bridge_port *port, - __be32 group) + __be32 group, + __u16 vid) { struct br_ip br_group; @@ -1295,6 +1317,7 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br, br_group.u.ip4 = group; br_group.proto = htons(ETH_P_IP); + br_group.vid = vid; br_multicast_leave_group(br, port, &br_group); } @@ -1302,7 +1325,8 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br, #if IS_ENABLED(CONFIG_IPV6) static void br_ip6_multicast_leave_group(struct net_bridge *br, struct net_bridge_port *port, - const struct in6_addr *group) + const struct in6_addr *group, + __u16 vid) { struct br_ip br_group; @@ -1311,6 +1335,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br, br_group.u.ip6 = *group; br_group.proto = htons(ETH_P_IPV6); + br_group.vid = vid; br_multicast_leave_group(br, port, &br_group); } @@ -1326,6 +1351,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br, unsigned int len; unsigned int offset; int err; + u16 vid = 0; /* We treat OOM as packet loss for now. */ if (!pskb_may_pull(skb, sizeof(*iph))) @@ -1386,6 +1412,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br, err = 0; + br_vlan_get_tag(skb2, &vid); BR_INPUT_SKB_CB(skb)->igmp = 1; ih = igmp_hdr(skb2); @@ -1393,7 +1420,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br, case IGMP_HOST_MEMBERSHIP_REPORT: case IGMPV2_HOST_MEMBERSHIP_REPORT: BR_INPUT_SKB_CB(skb)->mrouters_only = 1; - err = br_ip4_multicast_add_group(br, port, ih->group); + err = br_ip4_multicast_add_group(br, port, ih->group, vid); break; case IGMPV3_HOST_MEMBERSHIP_REPORT: err = br_ip4_multicast_igmp3_report(br, port, skb2); @@ -1402,7 +1429,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br, err = br_ip4_multicast_query(br, port, skb2); break; case IGMP_HOST_LEAVE_MESSAGE: - br_ip4_multicast_leave_group(br, port, ih->group); + br_ip4_multicast_leave_group(br, port, ih->group, vid); break; } @@ -1427,6 +1454,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, unsigned int len; int offset; int err; + u16 vid = 0; if (!pskb_may_pull(skb, sizeof(*ip6h))) return -EINVAL; @@ -1510,6 +1538,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, err = 0; + br_vlan_get_tag(skb, &vid); BR_INPUT_SKB_CB(skb)->igmp = 1; switch (icmp6_type) { @@ -1522,7 +1551,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, } mld = (struct mld_msg *)skb_transport_header(skb2); BR_INPUT_SKB_CB(skb)->mrouters_only = 1; - err = br_ip6_multicast_add_group(br, port, &mld->mld_mca); + err = br_ip6_multicast_add_group(br, port, &mld->mld_mca, vid); break; } case ICMPV6_MLD2_REPORT: @@ -1539,7 +1568,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, goto out; } mld = (struct mld_msg *)skb_transport_header(skb2); - br_ip6_multicast_leave_group(br, port, &mld->mld_mca); + br_ip6_multicast_leave_group(br, port, &mld->mld_mca, vid); } } diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 35140dc..eb197a9 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -63,6 +63,7 @@ struct br_ip #endif } u; __be16 proto; + __u16 vid; }; struct net_port_vlans {