^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Device handling code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Linux ethernet bridge
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Authors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Lennert Buytenhek <buytenh@gnu.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/netpoll.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/etherdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/ethtool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/netfilter_bridge.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "br_private.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define COMMON_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) NETIF_F_GSO_MASK | NETIF_F_HW_CSUM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) const struct nf_br_ops __rcu *nf_br_ops __read_mostly;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) EXPORT_SYMBOL_GPL(nf_br_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* net device transmit always called with BH disabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct net_bridge_fdb_entry *dst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct net_bridge_mdb_entry *mdst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) const struct nf_br_ops *nf_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) u8 state = BR_STATE_FORWARDING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) const unsigned char *dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) u16 vid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) memset(skb->cb, 0, sizeof(struct br_input_skb_cb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) rcu_read_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) nf_ops = rcu_dereference(nf_br_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (nf_ops && nf_ops->br_dev_xmit_hook(skb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) rcu_read_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return NETDEV_TX_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u64_stats_update_begin(&brstats->syncp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) brstats->tx_packets++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) brstats->tx_bytes += skb->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) u64_stats_update_end(&brstats->syncp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) br_switchdev_frame_unmark(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) BR_INPUT_SKB_CB(skb)->brdev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) BR_INPUT_SKB_CB(skb)->frag_max_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) skb_reset_mac_header(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) skb_pull(skb, ETH_HLEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid, &state))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) if (IS_ENABLED(CONFIG_INET) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) (eth_hdr(skb)->h_proto == htons(ETH_P_ARP) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) eth_hdr(skb)->h_proto == htons(ETH_P_RARP)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) br_do_proxy_suppress_arp(skb, br, vid, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) } else if (IS_ENABLED(CONFIG_IPV6) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) skb->protocol == htons(ETH_P_IPV6) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) pskb_may_pull(skb, sizeof(struct ipv6hdr) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) sizeof(struct nd_msg)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) struct nd_msg *msg, _msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) msg = br_is_nd_neigh_msg(skb, &_msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) br_do_suppress_nd(skb, br, vid, NULL, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) dest = eth_hdr(skb)->h_dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if (is_broadcast_ether_addr(dest)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) br_flood(br, skb, BR_PKT_BROADCAST, false, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) } else if (is_multicast_ether_addr(dest)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (unlikely(netpoll_tx_running(dev))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) br_flood(br, skb, BR_PKT_MULTICAST, false, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (br_multicast_rcv(br, NULL, skb, vid)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) mdst = br_mdb_get(br, skb, vid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) br_multicast_querier_exists(br, eth_hdr(skb)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) br_multicast_flood(mdst, skb, false, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) br_flood(br, skb, BR_PKT_MULTICAST, false, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) } else if ((dst = br_fdb_find_rcu(br, dest, vid)) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) br_forward(dst->dst, skb, false, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) br_flood(br, skb, BR_PKT_UNICAST, false, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) rcu_read_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return NETDEV_TX_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static struct lock_class_key bridge_netdev_addr_lock_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static void br_set_lockdep_class(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) lockdep_set_class(&dev->addr_list_lock, &bridge_netdev_addr_lock_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static int br_dev_init(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) br->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) if (!br->stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) err = br_fdb_hash_init(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) free_percpu(br->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) err = br_mdb_hash_init(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) free_percpu(br->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) br_fdb_hash_fini(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) err = br_vlan_init(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) free_percpu(br->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) br_mdb_hash_fini(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) br_fdb_hash_fini(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) err = br_multicast_init_stats(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) free_percpu(br->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) br_vlan_flush(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) br_mdb_hash_fini(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) br_fdb_hash_fini(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) br_set_lockdep_class(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static void br_dev_uninit(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) br_multicast_dev_del(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) br_multicast_uninit_stats(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) br_vlan_flush(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) br_mdb_hash_fini(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) br_fdb_hash_fini(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) free_percpu(br->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static int br_dev_open(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) netdev_update_features(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) netif_start_queue(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) br_stp_enable_bridge(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) br_multicast_open(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) if (br_opt_get(br, BROPT_MULTICAST_ENABLED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) br_multicast_join_snoopers(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static void br_dev_set_multicast_list(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static void br_dev_change_rx_flags(struct net_device *dev, int change)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) if (change & IFF_PROMISC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) br_manage_promisc(netdev_priv(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static int br_dev_stop(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) br_stp_disable_bridge(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) br_multicast_stop(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (br_opt_get(br, BROPT_MULTICAST_ENABLED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) br_multicast_leave_snoopers(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) netif_stop_queue(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) static void br_get_stats64(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) struct rtnl_link_stats64 *stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) netdev_stats_to_stats64(stats, &dev->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) dev_fetch_sw_netstats(stats, br->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) static int br_change_mtu(struct net_device *dev, int new_mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) dev->mtu = new_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /* this flag will be cleared if the MTU was automatically adjusted */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) br_opt_toggle(br, BROPT_MTU_SET_BY_USER, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) /* remember the MTU in the rtable for PMTU */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /* Allow setting mac address to any valid ethernet address. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) static int br_set_mac_address(struct net_device *dev, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) struct sockaddr *addr = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (!is_valid_ether_addr(addr->sa_data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return -EADDRNOTAVAIL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) /* dev_set_mac_addr() can be called by a master device on bridge's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) * NETDEV_UNREGISTER, but since it's being destroyed do nothing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (dev->reg_state != NETREG_REGISTERED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) spin_lock_bh(&br->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) if (!ether_addr_equal(dev->dev_addr, addr->sa_data)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /* Mac address will be changed in br_stp_change_bridge_id(). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) br_stp_change_bridge_id(br, addr->sa_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) spin_unlock_bh(&br->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) strlcpy(info->driver, "bridge", sizeof(info->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) strlcpy(info->version, BR_VERSION, sizeof(info->version));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) strlcpy(info->bus_info, "N/A", sizeof(info->bus_info));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static int br_get_link_ksettings(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct ethtool_link_ksettings *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct net_bridge_port *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) cmd->base.duplex = DUPLEX_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) cmd->base.port = PORT_OTHER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) cmd->base.speed = SPEED_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) list_for_each_entry(p, &br->port_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) struct ethtool_link_ksettings ecmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct net_device *pdev = p->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) if (!netif_running(pdev) || !netif_oper_up(pdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (__ethtool_get_link_ksettings(pdev, &ecmd))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (ecmd.base.speed == (__u32)SPEED_UNKNOWN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (cmd->base.speed == (__u32)SPEED_UNKNOWN ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) cmd->base.speed < ecmd.base.speed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) cmd->base.speed = ecmd.base.speed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) static netdev_features_t br_fix_features(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) netdev_features_t features)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) return br_features_recompute(br, features);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) #ifdef CONFIG_NET_POLL_CONTROLLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static void br_poll_controller(struct net_device *br_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static void br_netpoll_cleanup(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) struct net_bridge_port *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) list_for_each_entry(p, &br->port_list, list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) br_netpoll_disable(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) static int __br_netpoll_enable(struct net_bridge_port *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct netpoll *np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) np = kzalloc(sizeof(*p->np), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) if (!np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) err = __netpoll_setup(np, p->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) kfree(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) p->np = np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int br_netpoll_enable(struct net_bridge_port *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) if (!p->br->dev->npinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) return __br_netpoll_enable(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) struct net_bridge_port *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) list_for_each_entry(p, &br->port_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (!p->dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) err = __br_netpoll_enable(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) br_netpoll_cleanup(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) void br_netpoll_disable(struct net_bridge_port *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) struct netpoll *np = p->np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (!np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) p->np = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) __netpoll_free(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) static int br_add_slave(struct net_device *dev, struct net_device *slave_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct netlink_ext_ack *extack)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) return br_add_if(br, slave_dev, extack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) static int br_del_slave(struct net_device *dev, struct net_device *slave_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return br_del_if(br, slave_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) static const struct ethtool_ops br_ethtool_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) .get_drvinfo = br_getinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) .get_link = ethtool_op_get_link,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) .get_link_ksettings = br_get_link_ksettings,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) static const struct net_device_ops br_netdev_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) .ndo_open = br_dev_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) .ndo_stop = br_dev_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) .ndo_init = br_dev_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) .ndo_uninit = br_dev_uninit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) .ndo_start_xmit = br_dev_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) .ndo_get_stats64 = br_get_stats64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) .ndo_set_mac_address = br_set_mac_address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) .ndo_set_rx_mode = br_dev_set_multicast_list,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) .ndo_change_rx_flags = br_dev_change_rx_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) .ndo_change_mtu = br_change_mtu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) .ndo_do_ioctl = br_dev_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) #ifdef CONFIG_NET_POLL_CONTROLLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) .ndo_netpoll_setup = br_netpoll_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) .ndo_netpoll_cleanup = br_netpoll_cleanup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) .ndo_poll_controller = br_poll_controller,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) .ndo_add_slave = br_add_slave,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) .ndo_del_slave = br_del_slave,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) .ndo_fix_features = br_fix_features,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) .ndo_fdb_add = br_fdb_add,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) .ndo_fdb_del = br_fdb_delete,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) .ndo_fdb_dump = br_fdb_dump,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) .ndo_fdb_get = br_fdb_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) .ndo_bridge_getlink = br_getlink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) .ndo_bridge_setlink = br_setlink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) .ndo_bridge_dellink = br_dellink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) .ndo_features_check = passthru_features_check,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) static struct device_type br_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) .name = "bridge",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) void br_dev_setup(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) struct net_bridge *br = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) eth_hw_addr_random(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) ether_setup(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) dev->netdev_ops = &br_netdev_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) dev->needs_free_netdev = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) dev->ethtool_ops = &br_ethtool_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) SET_NETDEV_DEVTYPE(dev, &br_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) dev->priv_flags = IFF_EBRIDGE | IFF_NO_QUEUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) dev->features = COMMON_FEATURES | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) NETIF_F_HW_VLAN_STAG_TX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) dev->vlan_features = COMMON_FEATURES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) br->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) spin_lock_init(&br->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) INIT_LIST_HEAD(&br->port_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) INIT_HLIST_HEAD(&br->fdb_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) #if IS_ENABLED(CONFIG_BRIDGE_MRP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) INIT_LIST_HEAD(&br->mrp_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) spin_lock_init(&br->hash_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) br->bridge_id.prio[0] = 0x80;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) br->bridge_id.prio[1] = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) ether_addr_copy(br->group_addr, eth_stp_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) br->stp_enabled = BR_NO_STP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) br->group_fwd_mask = BR_GROUPFWD_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) br->designated_root = br->bridge_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) br->bridge_max_age = br->max_age = 20 * HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) br->bridge_hello_time = br->hello_time = 2 * HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) br->bridge_forward_delay = br->forward_delay = 15 * HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) br->bridge_ageing_time = br->ageing_time = BR_DEFAULT_AGEING_TIME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) dev->max_mtu = ETH_MAX_MTU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) br_netfilter_rtable_init(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) br_stp_timer_init(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) br_multicast_init(br);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) INIT_DELAYED_WORK(&br->gc_work, br_fdb_cleanup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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