diff options
| -rw-r--r-- | include/uapi/linux/if_bridge.h | 26 | ||||
| -rw-r--r-- | include/uapi/linux/if_link.h | 1 | ||||
| -rw-r--r-- | net/bridge/br_device.c | 10 | ||||
| -rw-r--r-- | net/bridge/br_forward.c | 13 | ||||
| -rw-r--r-- | net/bridge/br_if.c | 9 | ||||
| -rw-r--r-- | net/bridge/br_input.c | 3 | ||||
| -rw-r--r-- | net/bridge/br_multicast.c | 217 | ||||
| -rw-r--r-- | net/bridge/br_netlink.c | 91 | ||||
| -rw-r--r-- | net/bridge/br_private.h | 41 | ||||
| -rw-r--r-- | net/bridge/br_sysfs_br.c | 25 |
10 files changed, 390 insertions, 46 deletions
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h index 397d503fdedb..8304fe6f0561 100644 --- a/include/uapi/linux/if_bridge.h +++ b/include/uapi/linux/if_bridge.h @@ -247,8 +247,34 @@ enum { enum { BRIDGE_XSTATS_UNSPEC, BRIDGE_XSTATS_VLAN, + BRIDGE_XSTATS_MCAST, + BRIDGE_XSTATS_PAD, __BRIDGE_XSTATS_MAX }; #define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1) +enum { + BR_MCAST_DIR_RX, + BR_MCAST_DIR_TX, + BR_MCAST_DIR_SIZE +}; + +/* IGMP/MLD statistics */ +struct br_mcast_stats { + __u64 igmp_queries[BR_MCAST_DIR_SIZE]; + __u64 igmp_leaves[BR_MCAST_DIR_SIZE]; + __u64 igmp_v1reports[BR_MCAST_DIR_SIZE]; + __u64 igmp_v2reports[BR_MCAST_DIR_SIZE]; + __u64 igmp_v3reports[BR_MCAST_DIR_SIZE]; + __u64 igmp_parse_errors; + + __u64 mld_queries[BR_MCAST_DIR_SIZE]; + __u64 mld_leaves[BR_MCAST_DIR_SIZE]; + __u64 mld_v1reports[BR_MCAST_DIR_SIZE]; + __u64 mld_v2reports[BR_MCAST_DIR_SIZE]; + __u64 mld_parse_errors; + + __u64 mcast_bytes[BR_MCAST_DIR_SIZE]; + __u64 mcast_packets[BR_MCAST_DIR_SIZE]; +}; #endif /* _UAPI_LINUX_IF_BRIDGE_H */ diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index db2458ade81c..4285ac31e865 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -273,6 +273,7 @@ enum { IFLA_BR_VLAN_DEFAULT_PVID, IFLA_BR_PAD, IFLA_BR_VLAN_STATS_ENABLED, + IFLA_BR_MCAST_STATS_ENABLED, __IFLA_BR_MAX, }; diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 2c8095a5d824..0c39e0f6da09 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -104,8 +104,16 @@ static int br_dev_init(struct net_device *dev) return -ENOMEM; err = br_vlan_init(br); - if (err) + if (err) { free_percpu(br->stats); + return err; + } + + err = br_multicast_init_stats(br); + if (err) { + free_percpu(br->stats); + br_vlan_flush(br); + } br_set_lockdep_class(dev); return err; diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index f47759f05b6d..6c196037d818 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -198,8 +198,10 @@ static void br_flood(struct net_bridge *br, struct sk_buff *skb, struct sk_buff *skb), bool unicast) { - struct net_bridge_port *p; + u8 igmp_type = br_multicast_igmp_type(skb); + __be16 proto = skb->protocol; struct net_bridge_port *prev; + struct net_bridge_port *p; prev = NULL; @@ -218,6 +220,9 @@ static void br_flood(struct net_bridge *br, struct sk_buff *skb, prev = maybe_deliver(prev, p, skb, __packet_hook); if (IS_ERR(prev)) goto out; + if (prev == p) + br_multicast_count(p->br, p, proto, igmp_type, + BR_MCAST_DIR_TX); } if (!prev) @@ -257,9 +262,12 @@ static void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb)) { struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev; + u8 igmp_type = br_multicast_igmp_type(skb); struct net_bridge *br = netdev_priv(dev); struct net_bridge_port *prev = NULL; struct net_bridge_port_group *p; + __be16 proto = skb->protocol; + struct hlist_node *rp; rp = rcu_dereference(hlist_first_rcu(&br->router_list)); @@ -277,6 +285,9 @@ static void br_multicast_flood(struct net_bridge_mdb_entry *mdst, prev = maybe_deliver(prev, port, skb, __packet_hook); if (IS_ERR(prev)) goto out; + if (prev == port) + br_multicast_count(port->br, port, proto, igmp_type, + BR_MCAST_DIR_TX); if ((unsigned long)lport >= (unsigned long)port) p = rcu_dereference(p->next); diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 8217aecf025b..f2fede05d32c 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -345,8 +345,8 @@ static int find_portno(struct net_bridge *br) static struct net_bridge_port *new_nbp(struct net_bridge *br, struct net_device *dev) { - int index; struct net_bridge_port *p; + int index, err; index = find_portno(br); if (index < 0) @@ -366,7 +366,12 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br, br_init_port(p); br_set_state(p, BR_STATE_DISABLED); br_stp_port_timer_init(p); - br_multicast_add_port(p); + err = br_multicast_add_port(p); + if (err) { + dev_put(dev); + kfree(p); + p = ERR_PTR(err); + } return p; } diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 43d2cd862bc2..786602bc0567 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -60,6 +60,9 @@ static int br_pass_frame_up(struct sk_buff *skb) skb = br_handle_vlan(br, vg, skb); if (!skb) return NET_RX_DROP; + /* update the multicast stats if the packet is IGMP/MLD */ + br_multicast_count(br, NULL, skb->protocol, br_multicast_igmp_type(skb), + BR_MCAST_DIR_TX); return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, dev_net(indev), NULL, skb, indev, NULL, diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 43844144c9c4..e405eef0ae2e 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -361,7 +361,8 @@ out: } static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br, - __be32 group) + __be32 group, + u8 *igmp_type) { struct sk_buff *skb; struct igmphdr *ih; @@ -411,6 +412,7 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br, skb_set_transport_header(skb, skb->len); ih = igmp_hdr(skb); + *igmp_type = IGMP_HOST_MEMBERSHIP_QUERY; ih->type = IGMP_HOST_MEMBERSHIP_QUERY; ih->code = (group ? br->multicast_last_member_interval : br->multicast_query_response_interval) / @@ -428,7 +430,8 @@ out: #if IS_ENABLED(CONFIG_IPV6) static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br, - const struct in6_addr *group) + const struct in6_addr *grp, + u8 *igmp_type) { struct sk_buff *skb; struct ipv6hdr *ip6h; @@ -487,16 +490,17 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br, skb_set_transport_header(skb, skb->len); mldq = (struct mld_msg *) icmp6_hdr(skb); - interval = ipv6_addr_any(group) ? + interval = ipv6_addr_any(grp) ? br->multicast_query_response_interval : br->multicast_last_member_interval; + *igmp_type = ICMPV6_MGM_QUERY; mldq->mld_type = ICMPV6_MGM_QUERY; mldq->mld_code = 0; mldq->mld_cksum = 0; mldq->mld_maxdelay = htons((u16)jiffies_to_msecs(interval)); mldq->mld_reserved = 0; - mldq->mld_mca = *group; + mldq->mld_mca = *grp; /* checksum */ mldq->mld_cksum = csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, @@ -513,14 +517,16 @@ out: #endif static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br, - struct br_ip *addr) + struct br_ip *addr, + u8 *igmp_type) { switch (addr->proto) { case htons(ETH_P_IP): - return br_ip4_multicast_alloc_query(br, addr->u.ip4); + return br_ip4_multicast_alloc_query(br, addr->u.ip4, igmp_type); #if IS_ENABLED(CONFIG_IPV6) case htons(ETH_P_IPV6): - return br_ip6_multicast_alloc_query(br, &addr->u.ip6); + return br_ip6_multicast_alloc_query(br, &addr->u.ip6, + igmp_type); #endif } return NULL; @@ -829,18 +835,23 @@ static void __br_multicast_send_query(struct net_bridge *br, struct br_ip *ip) { struct sk_buff *skb; + u8 igmp_type; - skb = br_multicast_alloc_query(br, ip); + skb = br_multicast_alloc_query(br, ip, &igmp_type); if (!skb) return; if (port) { skb->dev = port->dev; + br_multicast_count(br, port, skb->protocol, igmp_type, + BR_MCAST_DIR_TX); NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, dev_net(port->dev), NULL, skb, NULL, skb->dev, br_dev_queue_push_xmit); } else { br_multicast_select_own_querier(br, ip, skb); + br_multicast_count(br, port, skb->protocol, igmp_type, + BR_MCAST_DIR_RX); netif_rx(skb); } } @@ -918,7 +929,7 @@ static void br_ip6_multicast_port_query_expired(unsigned long data) } #endif -void br_multicast_add_port(struct net_bridge_port *port) +int br_multicast_add_port(struct net_bridge_port *port) { port->multicast_router = MDB_RTR_TYPE_TEMP_QUERY; @@ -930,6 +941,11 @@ void br_multicast_add_port(struct net_bridge_port *port) setup_timer(&port->ip6_own_query.timer, br_ip6_multicast_port_query_expired, (unsigned long)port); #endif + port->mcast_stats = netdev_alloc_pcpu_stats(struct bridge_mcast_stats); + if (!port->mcast_stats) + return -ENOMEM; + + return 0; } void br_multicast_del_port(struct net_bridge_port *port) @@ -944,6 +960,7 @@ void br_multicast_del_port(struct net_bridge_port *port) br_multicast_del_pg(br, pg); spin_unlock_bh(&br->multicast_lock); del_timer_sync(&port->multicast_router_timer); + free_percpu(port->mcast_stats); } static void br_multicast_enable(struct bridge_mcast_own_query *query) @@ -1583,6 +1600,39 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br, } #endif +static void br_multicast_err_count(const struct net_bridge *br, + const struct net_bridge_port *p, + __be16 proto) +{ + struct bridge_mcast_stats __percpu *stats; + struct bridge_mcast_stats *pstats; + + if (!br->multicast_stats_enabled) + return; + + if (p) + stats = p->mcast_stats; + else + stats = br->mcast_stats; + if (WARN_ON(!stats)) + return; + + pstats = this_cpu_ptr(stats); + + u64_stats_update_begin(&pstats->syncp); + switch (proto) { + case htons(ETH_P_IP): + pstats->mstats.igmp_parse_errors++; + break; +#if IS_ENABLED(CONFIG_IPV6) + case htons(ETH_P_IPV6): + pstats->mstats.mld_parse_errors++; + break; +#endif + } + u64_stats_update_end(&pstats->syncp); +} + static int br_multicast_ipv4_rcv(struct net_bridge *br, struct net_bridge_port *port, struct sk_buff *skb, @@ -1599,11 +1649,12 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br, BR_INPUT_SKB_CB(skb)->mrouters_only = 1; return 0; } else if (err < 0) { + br_multicast_err_count(br, port, skb->protocol); return err; } - BR_INPUT_SKB_CB(skb)->igmp = 1; ih = igmp_hdr(skb); + BR_INPUT_SKB_CB(skb)->igmp = ih->type; switch (ih->type) { case IGMP_HOST_MEMBERSHIP_REPORT: @@ -1625,6 +1676,9 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br, if (skb_trimmed && skb_trimmed != skb) kfree_skb(skb_trimmed); + br_multicast_count(br, port, skb->protocol, BR_INPUT_SKB_CB(skb)->igmp, + BR_MCAST_DIR_RX); + return err; } @@ -1645,11 +1699,12 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, BR_INPUT_SKB_CB(skb)->mrouters_only = 1; return 0; } else if (err < 0) { + br_multicast_err_count(br, port, skb->protocol); return err; } - BR_INPUT_SKB_CB(skb)->igmp = 1; mld = (struct mld_msg *)skb_transport_header(skb); + BR_INPUT_SKB_CB(skb)->igmp = mld->mld_type; switch (mld->mld_type) { case ICMPV6_MGM_REPORT: @@ -1670,6 +1725,9 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, if (skb_trimmed && skb_trimmed != skb) kfree_skb(skb_trimmed); + br_multicast_count(br, port, skb->protocol, BR_INPUT_SKB_CB(skb)->igmp, + BR_MCAST_DIR_RX); + return err; } #endif @@ -1677,6 +1735,8 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br, int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, struct sk_buff *skb, u16 vid) { + int ret = 0; + BR_INPUT_SKB_CB(skb)->igmp = 0; BR_INPUT_SKB_CB(skb)->mrouters_only = 0; @@ -1685,14 +1745,16 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, switch (skb->protocol) { case htons(ETH_P_IP): - return br_multicast_ipv4_rcv(br, port, skb, vid); + ret = br_multicast_ipv4_rcv(br, port, skb, vid); + break; #if IS_ENABLED(CONFIG_IPV6) case htons(ETH_P_IPV6): - return br_multicast_ipv6_rcv(br, port, skb, vid); + ret = br_multicast_ipv6_rcv(br, port, skb, vid); + break; #endif } - return 0; + return ret; } static void br_multicast_query_expired(struct net_bridge *br, @@ -1831,6 +1893,8 @@ void br_multicast_dev_del(struct net_bridge *br) out: spin_unlock_bh(&br->multicast_lock); + + free_percpu(br->mcast_stats); } int br_multicast_set_router(struct net_bridge *br, unsigned long val) @@ -2185,3 +2249,128 @@ unlock: return ret; } EXPORT_SYMBOL_GPL(br_multicast_has_querier_adjacent); + +static void br_mcast_stats_add(struct bridge_mcast_stats __percpu *stats, + __be16 proto, u8 type, u8 dir) +{ + struct bridge_mcast_stats *pstats = this_cpu_ptr(stats); + + u64_stats_update_begin(&pstats->syncp); + switch (proto) { + case htons(ETH_P_IP): + switch (type) { + case IGMP_HOST_MEMBERSHIP_REPORT: + pstats->mstats.igmp_v1reports[dir]++; + break; + case IGMPV2_HOST_MEMBERSHIP_REPORT: + pstats->mstats.igmp_v2reports[dir]++; + break; + case IGMPV3_HOST_MEMBERSHIP_REPORT: + pstats->mstats.igmp_v3reports[dir]++; + break; + case IGMP_HOST_MEMBERSHIP_QUERY: + pstats->mstats.igmp_queries[dir]++; + break; + case IGMP_HOST_LEAVE_MESSAGE: + pstats->mstats.igmp_leaves[dir]++; + break; + } + break; +#if IS_ENABLED(CONFIG_IPV6) + case htons(ETH_P_IPV6): + switch (type) { + case ICMPV6_MGM_REPORT: + pstats->mstats.mld_v1reports[dir]++; + break; + case ICMPV6_MLD2_REPORT: + pstats->mstats.mld_v2reports[dir]++; + break; + case ICMPV6_MGM_QUERY: + pstats->mstats.mld_queries[dir]++; + break; + case ICMPV6_MGM_REDUCTION: + pstats->mstats.mld_leaves[dir]++; + break; + } + break; +#endif /* CONFIG_IPV6 */ + } + u64_stats_update_end(&pstats->syncp); +} + +void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, + __be16 proto, u8 type, u8 dir) +{ + struct bridge_mcast_stats __percpu *stats; + + /* if multicast_disabled is true then igmp type can't be set */ + if (!type || !br->multicast_stats_enabled) + return; + + if (p) + stats = p->mcast_stats; + else + stats = br->mcast_stats; + if (WARN_ON(!stats)) + return; + + br_mcast_stats_add(stats, proto, type, dir); +} + +int br_multicast_init_stats(struct net_bridge *br) +{ + br->mcast_stats = netdev_alloc_pcpu_stats(struct bridge_mcast_stats); + if (!br->mcast_stats) + return -ENOMEM; + + return 0; +} + +static void mcast_stats_add_dir(u64 *dst, u64 *src) +{ + dst[BR_MCAST_DIR_RX] += src[BR_MCAST_DIR_RX]; + dst[BR_MCAST_DIR_TX] += src[BR_MCAST_DIR_TX]; +} + +void br_multicast_get_stats(const struct net_bridge *br, + const struct net_bridge_port *p, + struct br_mcast_stats *dest) +{ + struct bridge_mcast_stats __percpu *stats; + struct br_mcast_stats tdst; + int i; + + memset(dest, 0, sizeof(*dest)); + if (p) + stats = p->mcast_stats; + else + stats = br->mcast_stats; + if (WARN_ON(!stats)) + return; + + memset(&tdst, 0, sizeof(tdst)); + for_each_possible_cpu(i) { + struct bridge_mcast_stats *cpu_stats = per_cpu_ptr(stats, i); + struct br_mcast_stats temp; + unsigned int start; + + do { + start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); + memcpy(&temp, &cpu_stats->mstats, sizeof(temp)); + } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); + + mcast_stats_add_dir(tdst.igmp_queries, temp.igmp_queries); + mcast_stats_add_dir(tdst.igmp_leaves, temp.igmp_leaves); + mcast_stats_add_dir(tdst.igmp_v1reports, temp.igmp_v1reports); + mcast_stats_add_dir(tdst.igmp_v2reports, temp.igmp_v2reports); + mcast_stats_add_dir(tdst.igmp_v3reports, temp.igmp_v3reports); + tdst.igmp_parse_errors += temp.igmp_parse_errors; + + mcast_stats_add_dir(tdst.mld_queries, temp.mld_queries); + mcast_stats_add_dir(tdst.mld_leaves, temp.mld_leaves); + mcast_stats_add_dir(tdst.mld_v1reports, temp.mld_v1reports); + mcast_stats_add_dir(tdst.mld_v2reports, temp.mld_v2reports); + tdst.mld_parse_errors += temp.mld_parse_errors; + } + memcpy(dest, &tdst, sizeof(*dest)); +} diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index ed75ff9ff9e6..f2a29e467e78 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -851,6 +851,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 }, [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 }, [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 }, + [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 }, }; static int br_changelink(struct net_device *brdev, struct nlattr *tb[], @@ -1055,6 +1056,13 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[], br->multicast_startup_query_interval = clock_t_to_jiffies(val); } + + if (data[IFLA_BR_MCAST_STATS_ENABLED]) { + __u8 mcast_stats; + + mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]); + br->multicast_stats_enabled = !!mcast_stats; + } #endif #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) if (data[IFLA_BR_NF_CALL_IPTABLES]) { @@ -1110,6 +1118,7 @@ static size_t br_get_size(const struct net_device *brdev) nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */ nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */ nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */ + nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */ nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */ nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */ nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */ @@ -1187,6 +1196,8 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR, br->multicast_query_use_ifaddr) || nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) || + nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED, + br->multicast_stats_enabled) || nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY, br->hash_elasticity) || nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) || @@ -1242,21 +1253,21 @@ static size_t bridge_get_linkxstats_size(const struct net_device *dev) int numvls = 0; vg = br_vlan_group(br); - if (!vg) - return 0; - - /* we need to count all, even placeholder entries */ - list_for_each_entry(v, &vg->vlan_list, vlist) - numvls++; + if (vg) { + /* we need to count all, even placeholder entries */ + list_for_each_entry(v, &vg->vlan_list, vlist) + numvls++; + } - /* account for the vlans and the link xstats type nest attribute */ return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) + + nla_total_size(sizeof(struct br_mcast_stats)) + nla_total_size(0); } static size_t brport_get_linkxstats_size(const struct net_device *dev) { - return nla_total_size(0); + return nla_total_size(sizeof(struct br_mcast_stats)) + + nla_total_size(0); } static size_t br_get_linkxstats_size(const struct net_device *dev, int attr) @@ -1280,37 +1291,50 @@ static int bridge_fill_linkxstats(struct sk_buff *skb, int *prividx) { struct net_bridge *br = netdev_priv(dev); + struct nlattr *nla __maybe_unused; struct net_bridge_vlan_group *vg; struct net_bridge_vlan *v; struct nlattr *nest; int vl_idx = 0; - vg = br_vlan_group(br); - if (!vg) - goto out; nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE); if (!nest) return -EMSGSIZE; - list_for_each_entry(v, &vg->vlan_list, vlist) { - struct bridge_vlan_xstats vxi; - struct br_vlan_stats stats; - if (++vl_idx < *prividx) - continue; - memset(&vxi, 0, sizeof(vxi)); - vxi.vid = v->vid; - br_vlan_get_stats(v, &stats); - vxi.rx_bytes = stats.rx_bytes; - vxi.rx_packets = stats.rx_packets; - vxi.tx_bytes = stats.tx_bytes; - vxi.tx_packets = stats.tx_packets; - - if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi)) + vg = br_vlan_group(br); + if (vg) { + list_for_each_entry(v, &vg->vlan_list, vlist) { + struct bridge_vlan_xstats vxi; + struct br_vlan_stats stats; + + if (++vl_idx < *prividx) + continue; + memset(&vxi, 0, sizeof(vxi)); + vxi.vid = v->vid; + br_vlan_get_stats(v, &stats); + vxi.rx_bytes = stats.rx_bytes; + vxi.rx_packets = stats.rx_packets; + vxi.tx_bytes = stats.tx_bytes; + vxi.tx_packets = stats.tx_packets; + + if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi)) + goto nla_put_failure; + } + } + +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING + if (++vl_idx >= *prividx) { + nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST, + sizeof(struct br_mcast_stats), + BRIDGE_XSTATS_PAD); + if (!nla) goto nla_put_failure; + br_multicast_get_stats(br, NULL, nla_data(nla)); } +#endif nla_nest_end(skb, nest); *prividx = 0; -out: + return 0; nla_put_failure: @@ -1324,11 +1348,26 @@ static int brport_fill_linkxstats(struct sk_buff *skb, const struct net_device *dev, int *prividx) { + struct net_bridge_port *p = br_port_get_rtnl(dev); + struct nlattr *nla __maybe_unused; struct nlattr *nest; + if (!p) + return 0; + nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE); if (!nest) return -EMSGSIZE; +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING + nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST, + sizeof(struct br_mcast_stats), + BRIDGE_XSTATS_PAD); + if (!nla) { + nla_nest_end(skb, nest); + return -EMSGSIZE; + } + br_multicast_get_stats(p->br, p, nla_data(nla)); +#endif nla_nest_end(skb, nest); return 0; diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 52edecf3c294..4dc851166ad1 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -75,6 +75,12 @@ struct bridge_mcast_querier { struct br_ip addr; struct net_bridge_port __rcu *port; }; + +/* IGMP/MLD statistics */ +struct bridge_mcast_stats { + struct br_mcast_stats mstats; + struct u64_stats_sync syncp; +}; #endif struct br_vlan_stats { @@ -229,6 +235,7 @@ struct net_bridge_port struct bridge_mcast_own_query ip6_own_query; #endif /* IS_ENABLED(CONFIG_IPV6) */ unsigned char multicast_router; + struct bridge_mcast_stats __percpu *mcast_stats; struct timer_list multicast_router_timer; struct hlist_head mglist; struct hlist_node rlist; @@ -315,6 +322,7 @@ struct net_bridge u8 multicast_querier:1; u8 multicast_query_use_ifaddr:1; u8 has_ipv6_addr:1; + u8 multicast_stats_enabled:1; u32 hash_elasticity; u32 hash_max; @@ -337,6 +345,7 @@ struct net_bridge struct bridge_mcast_other_query ip4_other_query; struct bridge_mcast_own_query ip4_own_query; struct bridge_mcast_querier ip4_querier; + struct bridge_mcast_stats __percpu *mcast_stats; #if IS_ENABLED(CONFIG_IPV6) struct bridge_mcast_other_query ip6_other_query; struct bridge_mcast_own_query ip6_own_query; @@ -543,7 +552,7 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, struct sk_buff *skb, u16 vid); struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, struct sk_buff *skb, u16 vid); -void br_multicast_add_port(struct net_bridge_port *port); +int br_multicast_add_port(struct net_bridge_port *port); void br_multicast_del_port(struct net_bridge_port *port); void br_multicast_enable_port(struct net_bridge_port *port); void br_multicast_disable_port(struct net_bridge_port *port); @@ -576,6 +585,12 @@ void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, struct br_ip *group, int type, u8 flags); void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, int type); +void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, + __be16 proto, u8 type, u8 dir); +int br_multicast_init_stats(struct net_bridge *br); +void br_multicast_get_stats(const struct net_bridge *br, + const struct net_bridge_port *p, + struct br_mcast_stats *dest); #define mlock_dereference(X, br) \ rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) @@ -623,6 +638,11 @@ static inline bool br_multicast_querier_exists(struct net_bridge *br, return false; } } + +static inline int br_multicast_igmp_type(const struct sk_buff *skb) +{ + return BR_INPUT_SKB_CB(skb)->igmp; +} #else static inline int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, @@ -638,8 +658,9 @@ static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, return NULL; } -static inline void br_multicast_add_port(struct net_bridge_port *port) +static inline int br_multicast_add_port(struct net_bridge_port *port) { + return 0; } static inline void br_multicast_del_port(struct net_bridge_port *port) @@ -695,6 +716,22 @@ static inline void br_mdb_init(void) static inline void br_mdb_uninit(void) { } + +static inline void br_multicast_count(struct net_bridge *br, + const struct net_bridge_port *p, + __be16 proto, u8 type, u8 dir) +{ +} + +static inline int br_multicast_init_stats(struct net_bridge *br) +{ + return 0; +} + +static inline int br_multicast_igmp_type(const struct sk_buff *skb) +{ + return 0; +} #endif /* br_vlan.c */ diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index beb47071e38d..e120307c6e36 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -618,6 +618,30 @@ static ssize_t multicast_startup_query_interval_store( return store_bridge_parm(d, buf, len, set_startup_query_interval); } static DEVICE_ATTR_RW(multicast_startup_query_interval); + +static ssize_t multicast_stats_enabled_show(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct net_bridge *br = to_bridge(d); + + return sprintf(buf, "%u\n", br->multicast_stats_enabled); +} + +static int set_stats_enabled(struct net_bridge *br, unsigned long val) +{ + br->multicast_stats_enabled = !!val; + return 0; +} + +static ssize_t multicast_stats_enabled_store(struct device *d, + struct device_attribute *attr, + const char *buf, + size_t len) +{ + return store_bridge_parm(d, buf, len, set_stats_enabled); +} +static DEVICE_ATTR_RW(multicast_stats_enabled); #endif #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) static ssize_t nf_call_iptables_show( @@ -784,6 +808,7 @@ static struct attribute *bridge_attrs[] = { &dev_attr_multicast_query_interval.attr, &dev_attr_multicast_query_response_interval.attr, &dev_attr_multicast_startup_query_interval.attr, + &dev_attr_multicast_stats_enabled.attr, #endif #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) &dev_attr_nf_call_iptables.attr, |