1457c8996SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2243a2e63SVlad Yasevich #include <linux/kernel.h> 3243a2e63SVlad Yasevich #include <linux/netdevice.h> 4243a2e63SVlad Yasevich #include <linux/rtnetlink.h> 5243a2e63SVlad Yasevich #include <linux/slab.h> 67f109539SScott Feldman #include <net/switchdev.h> 7243a2e63SVlad Yasevich 8243a2e63SVlad Yasevich #include "br_private.h" 9efa5356bSRoopa Prabhu #include "br_private_tunnel.h" 10243a2e63SVlad Yasevich 1180900acdSMike Manning static void nbp_vlan_set_vlan_dev_state(struct net_bridge_port *p, u16 vid); 1280900acdSMike Manning 132594e906SNikolay Aleksandrov static inline int br_vlan_cmp(struct rhashtable_compare_arg *arg, 142594e906SNikolay Aleksandrov const void *ptr) 15552406c4SVlad Yasevich { 162594e906SNikolay Aleksandrov const struct net_bridge_vlan *vle = ptr; 172594e906SNikolay Aleksandrov u16 vid = *(u16 *)arg->key; 182594e906SNikolay Aleksandrov 192594e906SNikolay Aleksandrov return vle->vid != vid; 202594e906SNikolay Aleksandrov } 212594e906SNikolay Aleksandrov 222594e906SNikolay Aleksandrov static const struct rhashtable_params br_vlan_rht_params = { 232594e906SNikolay Aleksandrov .head_offset = offsetof(struct net_bridge_vlan, vnode), 242594e906SNikolay Aleksandrov .key_offset = offsetof(struct net_bridge_vlan, vid), 252594e906SNikolay Aleksandrov .key_len = sizeof(u16), 268af78b64SNikolay Aleksandrov .nelem_hint = 3, 272594e906SNikolay Aleksandrov .max_size = VLAN_N_VID, 282594e906SNikolay Aleksandrov .obj_cmpfn = br_vlan_cmp, 292594e906SNikolay Aleksandrov .automatic_shrinking = true, 302594e906SNikolay Aleksandrov }; 312594e906SNikolay Aleksandrov 322594e906SNikolay Aleksandrov static struct net_bridge_vlan *br_vlan_lookup(struct rhashtable *tbl, u16 vid) 332594e906SNikolay Aleksandrov { 342594e906SNikolay Aleksandrov return rhashtable_lookup_fast(tbl, &vid, br_vlan_rht_params); 352594e906SNikolay Aleksandrov } 362594e906SNikolay Aleksandrov 37a580c76dSNikolay Aleksandrov static bool __vlan_add_pvid(struct net_bridge_vlan_group *vg, 38a580c76dSNikolay Aleksandrov const struct net_bridge_vlan *v) 392594e906SNikolay Aleksandrov { 40a580c76dSNikolay Aleksandrov if (vg->pvid == v->vid) 41f418af63SNikolay Aleksandrov return false; 42552406c4SVlad Yasevich 43552406c4SVlad Yasevich smp_wmb(); 44a580c76dSNikolay Aleksandrov br_vlan_set_pvid_state(vg, v->state); 45a580c76dSNikolay Aleksandrov vg->pvid = v->vid; 46f418af63SNikolay Aleksandrov 47f418af63SNikolay Aleksandrov return true; 48552406c4SVlad Yasevich } 49552406c4SVlad Yasevich 50f418af63SNikolay Aleksandrov static bool __vlan_delete_pvid(struct net_bridge_vlan_group *vg, u16 vid) 51552406c4SVlad Yasevich { 5277751ee8SNikolay Aleksandrov if (vg->pvid != vid) 53f418af63SNikolay Aleksandrov return false; 54552406c4SVlad Yasevich 55552406c4SVlad Yasevich smp_wmb(); 5677751ee8SNikolay Aleksandrov vg->pvid = 0; 57f418af63SNikolay Aleksandrov 58f418af63SNikolay Aleksandrov return true; 59552406c4SVlad Yasevich } 60552406c4SVlad Yasevich 61f418af63SNikolay Aleksandrov /* return true if anything changed, false otherwise */ 62f418af63SNikolay Aleksandrov static bool __vlan_add_flags(struct net_bridge_vlan *v, u16 flags) 6335e03f3aSVlad Yasevich { 6477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 65f418af63SNikolay Aleksandrov u16 old_flags = v->flags; 66f418af63SNikolay Aleksandrov bool ret; 6777751ee8SNikolay Aleksandrov 682594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) 69907b1e6eSNikolay Aleksandrov vg = br_vlan_group(v->br); 70635126b7SVlad Yasevich else 71907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(v->port); 7277751ee8SNikolay Aleksandrov 7377751ee8SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_PVID) 74a580c76dSNikolay Aleksandrov ret = __vlan_add_pvid(vg, v); 752594e906SNikolay Aleksandrov else 76f418af63SNikolay Aleksandrov ret = __vlan_delete_pvid(vg, v->vid); 7735e03f3aSVlad Yasevich 7835e03f3aSVlad Yasevich if (flags & BRIDGE_VLAN_INFO_UNTAGGED) 792594e906SNikolay Aleksandrov v->flags |= BRIDGE_VLAN_INFO_UNTAGGED; 80635126b7SVlad Yasevich else 812594e906SNikolay Aleksandrov v->flags &= ~BRIDGE_VLAN_INFO_UNTAGGED; 82f418af63SNikolay Aleksandrov 83f418af63SNikolay Aleksandrov return ret || !!(old_flags ^ v->flags); 8435e03f3aSVlad Yasevich } 8535e03f3aSVlad Yasevich 867f109539SScott Feldman static int __vlan_vid_add(struct net_device *dev, struct net_bridge *br, 8727973793SIdo Schimmel struct net_bridge_vlan *v, u16 flags, 8827973793SIdo Schimmel struct netlink_ext_ack *extack) 897f109539SScott Feldman { 900944d6b5SJiri Pirko int err; 917f109539SScott Feldman 920944d6b5SJiri Pirko /* Try switchdev op first. In case it is not supported, fallback to 930944d6b5SJiri Pirko * 8021q add. 940944d6b5SJiri Pirko */ 9527973793SIdo Schimmel err = br_switchdev_port_vlan_add(dev, v->vid, flags, extack); 967f109539SScott Feldman if (err == -EOPNOTSUPP) 9727973793SIdo Schimmel return vlan_vid_add(dev, br->vlan_proto, v->vid); 9827973793SIdo Schimmel v->priv_flags |= BR_VLFLAG_ADDED_BY_SWITCHDEV; 997f109539SScott Feldman return err; 1007f109539SScott Feldman } 1017f109539SScott Feldman 1022594e906SNikolay Aleksandrov static void __vlan_add_list(struct net_bridge_vlan *v) 103243a2e63SVlad Yasevich { 104907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 1052594e906SNikolay Aleksandrov struct list_head *headp, *hpos; 1062594e906SNikolay Aleksandrov struct net_bridge_vlan *vent; 107243a2e63SVlad Yasevich 108907b1e6eSNikolay Aleksandrov if (br_vlan_is_master(v)) 109907b1e6eSNikolay Aleksandrov vg = br_vlan_group(v->br); 110907b1e6eSNikolay Aleksandrov else 111907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(v->port); 112907b1e6eSNikolay Aleksandrov 113907b1e6eSNikolay Aleksandrov headp = &vg->vlan_list; 1142594e906SNikolay Aleksandrov list_for_each_prev(hpos, headp) { 1152594e906SNikolay Aleksandrov vent = list_entry(hpos, struct net_bridge_vlan, vlist); 116040c1257SColin Ian King if (v->vid >= vent->vid) 1172594e906SNikolay Aleksandrov break; 1182594e906SNikolay Aleksandrov } 119586c2b57SNikolay Aleksandrov list_add_rcu(&v->vlist, hpos); 120552406c4SVlad Yasevich } 121243a2e63SVlad Yasevich 1222594e906SNikolay Aleksandrov static void __vlan_del_list(struct net_bridge_vlan *v) 1232594e906SNikolay Aleksandrov { 124586c2b57SNikolay Aleksandrov list_del_rcu(&v->vlist); 125243a2e63SVlad Yasevich } 126243a2e63SVlad Yasevich 127bf361ad3SVivien Didelot static int __vlan_vid_del(struct net_device *dev, struct net_bridge *br, 12827973793SIdo Schimmel const struct net_bridge_vlan *v) 1297f109539SScott Feldman { 1300944d6b5SJiri Pirko int err; 1317f109539SScott Feldman 1320944d6b5SJiri Pirko /* Try switchdev op first. In case it is not supported, fallback to 1330944d6b5SJiri Pirko * 8021q del. 1340944d6b5SJiri Pirko */ 13527973793SIdo Schimmel err = br_switchdev_port_vlan_del(dev, v->vid); 13627973793SIdo Schimmel if (!(v->priv_flags & BR_VLFLAG_ADDED_BY_SWITCHDEV)) 13727973793SIdo Schimmel vlan_vid_del(dev, br->vlan_proto, v->vid); 13827973793SIdo Schimmel return err == -EOPNOTSUPP ? 0 : err; 1397f109539SScott Feldman } 1407f109539SScott Feldman 1414bbd026cSRandy Dunlap /* Returns a master vlan, if it didn't exist it gets created. In all cases 142f8ed289fSNikolay Aleksandrov * a reference is taken to the master vlan before returning. 143f8ed289fSNikolay Aleksandrov */ 144169327d5SPetr Machata static struct net_bridge_vlan * 145169327d5SPetr Machata br_vlan_get_master(struct net_bridge *br, u16 vid, 146169327d5SPetr Machata struct netlink_ext_ack *extack) 147f8ed289fSNikolay Aleksandrov { 148907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 149f8ed289fSNikolay Aleksandrov struct net_bridge_vlan *masterv; 150f8ed289fSNikolay Aleksandrov 151907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 152907b1e6eSNikolay Aleksandrov masterv = br_vlan_find(vg, vid); 153f8ed289fSNikolay Aleksandrov if (!masterv) { 154f418af63SNikolay Aleksandrov bool changed; 155f418af63SNikolay Aleksandrov 156f8ed289fSNikolay Aleksandrov /* missing global ctx, create it now */ 157169327d5SPetr Machata if (br_vlan_add(br, vid, 0, &changed, extack)) 158f8ed289fSNikolay Aleksandrov return NULL; 159907b1e6eSNikolay Aleksandrov masterv = br_vlan_find(vg, vid); 160f8ed289fSNikolay Aleksandrov if (WARN_ON(!masterv)) 161f8ed289fSNikolay Aleksandrov return NULL; 1620e5a82efSIdo Schimmel refcount_set(&masterv->refcnt, 1); 1630e5a82efSIdo Schimmel return masterv; 164f8ed289fSNikolay Aleksandrov } 16525127759SReshetova, Elena refcount_inc(&masterv->refcnt); 166f8ed289fSNikolay Aleksandrov 167f8ed289fSNikolay Aleksandrov return masterv; 168f8ed289fSNikolay Aleksandrov } 169f8ed289fSNikolay Aleksandrov 1706dada9b1SNikolay Aleksandrov static void br_master_vlan_rcu_free(struct rcu_head *rcu) 1716dada9b1SNikolay Aleksandrov { 1726dada9b1SNikolay Aleksandrov struct net_bridge_vlan *v; 1736dada9b1SNikolay Aleksandrov 1746dada9b1SNikolay Aleksandrov v = container_of(rcu, struct net_bridge_vlan, rcu); 1756dada9b1SNikolay Aleksandrov WARN_ON(!br_vlan_is_master(v)); 1766dada9b1SNikolay Aleksandrov free_percpu(v->stats); 1776dada9b1SNikolay Aleksandrov v->stats = NULL; 1786dada9b1SNikolay Aleksandrov kfree(v); 1796dada9b1SNikolay Aleksandrov } 1806dada9b1SNikolay Aleksandrov 181f8ed289fSNikolay Aleksandrov static void br_vlan_put_master(struct net_bridge_vlan *masterv) 182f8ed289fSNikolay Aleksandrov { 183907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 184907b1e6eSNikolay Aleksandrov 185f8ed289fSNikolay Aleksandrov if (!br_vlan_is_master(masterv)) 186f8ed289fSNikolay Aleksandrov return; 187f8ed289fSNikolay Aleksandrov 188907b1e6eSNikolay Aleksandrov vg = br_vlan_group(masterv->br); 18925127759SReshetova, Elena if (refcount_dec_and_test(&masterv->refcnt)) { 190907b1e6eSNikolay Aleksandrov rhashtable_remove_fast(&vg->vlan_hash, 191f8ed289fSNikolay Aleksandrov &masterv->vnode, br_vlan_rht_params); 192f8ed289fSNikolay Aleksandrov __vlan_del_list(masterv); 1937b54aaafSNikolay Aleksandrov br_multicast_toggle_one_vlan(masterv, false); 194613d61dbSNikolay Aleksandrov br_multicast_ctx_deinit(&masterv->br_mcast_ctx); 1956dada9b1SNikolay Aleksandrov call_rcu(&masterv->rcu, br_master_vlan_rcu_free); 196f8ed289fSNikolay Aleksandrov } 197f8ed289fSNikolay Aleksandrov } 198f8ed289fSNikolay Aleksandrov 1999163a0fcSNikolay Aleksandrov static void nbp_vlan_rcu_free(struct rcu_head *rcu) 2009163a0fcSNikolay Aleksandrov { 2019163a0fcSNikolay Aleksandrov struct net_bridge_vlan *v; 2029163a0fcSNikolay Aleksandrov 2039163a0fcSNikolay Aleksandrov v = container_of(rcu, struct net_bridge_vlan, rcu); 2049163a0fcSNikolay Aleksandrov WARN_ON(br_vlan_is_master(v)); 2059163a0fcSNikolay Aleksandrov /* if we had per-port stats configured then free them here */ 2069d332e69SNikolay Aleksandrov if (v->priv_flags & BR_VLFLAG_PER_PORT_STATS) 2079163a0fcSNikolay Aleksandrov free_percpu(v->stats); 2089163a0fcSNikolay Aleksandrov v->stats = NULL; 2099163a0fcSNikolay Aleksandrov kfree(v); 2109163a0fcSNikolay Aleksandrov } 2119163a0fcSNikolay Aleksandrov 2122594e906SNikolay Aleksandrov /* This is the shared VLAN add function which works for both ports and bridge 2132594e906SNikolay Aleksandrov * devices. There are four possible calls to this function in terms of the 2142594e906SNikolay Aleksandrov * vlan entry type: 2152594e906SNikolay Aleksandrov * 1. vlan is being added on a port (no master flags, global entry exists) 216ddd611d3SIdo Schimmel * 2. vlan is being added on a bridge (both master and brentry flags) 2172594e906SNikolay Aleksandrov * 3. vlan is being added on a port, but a global entry didn't exist which 218ddd611d3SIdo Schimmel * is being created right now (master flag set, brentry flag unset), the 2192594e906SNikolay Aleksandrov * global entry is used for global per-vlan features, but not for filtering 220ddd611d3SIdo Schimmel * 4. same as 3 but with both master and brentry flags set so the entry 2212594e906SNikolay Aleksandrov * will be used for filtering in both the port and the bridge 2222594e906SNikolay Aleksandrov */ 223169327d5SPetr Machata static int __vlan_add(struct net_bridge_vlan *v, u16 flags, 224169327d5SPetr Machata struct netlink_ext_ack *extack) 225243a2e63SVlad Yasevich { 2262594e906SNikolay Aleksandrov struct net_bridge_vlan *masterv = NULL; 2272594e906SNikolay Aleksandrov struct net_bridge_port *p = NULL; 2286be144f6SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 2292594e906SNikolay Aleksandrov struct net_device *dev; 2302594e906SNikolay Aleksandrov struct net_bridge *br; 231bf361ad3SVivien Didelot int err; 232bf361ad3SVivien Didelot 2332594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 2342594e906SNikolay Aleksandrov br = v->br; 2352594e906SNikolay Aleksandrov dev = br->dev; 236907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 2372594e906SNikolay Aleksandrov } else { 2382594e906SNikolay Aleksandrov p = v->port; 2392594e906SNikolay Aleksandrov br = p->br; 2402594e906SNikolay Aleksandrov dev = p->dev; 241907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 2422594e906SNikolay Aleksandrov } 2432594e906SNikolay Aleksandrov 2442594e906SNikolay Aleksandrov if (p) { 2452594e906SNikolay Aleksandrov /* Add VLAN to the device filter if it is supported. 2462594e906SNikolay Aleksandrov * This ensures tagged traffic enters the bridge when 2472594e906SNikolay Aleksandrov * promiscuous mode is disabled by br_manage_promisc(). 2482594e906SNikolay Aleksandrov */ 24927973793SIdo Schimmel err = __vlan_vid_add(dev, br, v, flags, extack); 250bf361ad3SVivien Didelot if (err) 2512594e906SNikolay Aleksandrov goto out; 2522594e906SNikolay Aleksandrov 2532594e906SNikolay Aleksandrov /* need to work on the master vlan too */ 2542594e906SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_MASTER) { 255f418af63SNikolay Aleksandrov bool changed; 256f418af63SNikolay Aleksandrov 257f418af63SNikolay Aleksandrov err = br_vlan_add(br, v->vid, 258f418af63SNikolay Aleksandrov flags | BRIDGE_VLAN_INFO_BRENTRY, 259169327d5SPetr Machata &changed, extack); 2602594e906SNikolay Aleksandrov if (err) 2612594e906SNikolay Aleksandrov goto out_filt; 262f545923bSNikolay Aleksandrov 263f545923bSNikolay Aleksandrov if (changed) 264f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, v->vid, 0, 265f545923bSNikolay Aleksandrov RTM_NEWVLAN); 2662594e906SNikolay Aleksandrov } 2672594e906SNikolay Aleksandrov 268169327d5SPetr Machata masterv = br_vlan_get_master(br, v->vid, extack); 269ee4f52a8SZhang Changzhong if (!masterv) { 270ee4f52a8SZhang Changzhong err = -ENOMEM; 2712594e906SNikolay Aleksandrov goto out_filt; 272ee4f52a8SZhang Changzhong } 2732594e906SNikolay Aleksandrov v->brvlan = masterv; 2749163a0fcSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)) { 275281cc284SHeiner Kallweit v->stats = 276281cc284SHeiner Kallweit netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); 2779163a0fcSNikolay Aleksandrov if (!v->stats) { 2789163a0fcSNikolay Aleksandrov err = -ENOMEM; 2799163a0fcSNikolay Aleksandrov goto out_filt; 2809163a0fcSNikolay Aleksandrov } 2819d332e69SNikolay Aleksandrov v->priv_flags |= BR_VLFLAG_PER_PORT_STATS; 2829163a0fcSNikolay Aleksandrov } else { 2836dada9b1SNikolay Aleksandrov v->stats = masterv->stats; 2849163a0fcSNikolay Aleksandrov } 285613d61dbSNikolay Aleksandrov br_multicast_port_ctx_init(p, v, &v->port_mcast_ctx); 2869c86ce2cSPetr Machata } else { 287*3116ad06SVladimir Oltean if (br_vlan_should_use(v)) { 288*3116ad06SVladimir Oltean err = br_switchdev_port_vlan_add(dev, v->vid, flags, 289*3116ad06SVladimir Oltean extack); 2909c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 2919c86ce2cSPetr Machata goto out; 292*3116ad06SVladimir Oltean } 293613d61dbSNikolay Aleksandrov br_multicast_ctx_init(br, v, &v->br_mcast_ctx); 2947b54aaafSNikolay Aleksandrov v->priv_flags |= BR_VLFLAG_GLOBAL_MCAST_ENABLED; 2952594e906SNikolay Aleksandrov } 2962594e906SNikolay Aleksandrov 2976be144f6SNikolay Aleksandrov /* Add the dev mac and count the vlan only if it's usable */ 2982594e906SNikolay Aleksandrov if (br_vlan_should_use(v)) { 299f6814fdcSVladimir Oltean err = br_fdb_add_local(br, p, dev->dev_addr, v->vid); 3002594e906SNikolay Aleksandrov if (err) { 3012594e906SNikolay Aleksandrov br_err(br, "failed insert local address into bridge forwarding table\n"); 3022594e906SNikolay Aleksandrov goto out_filt; 3032594e906SNikolay Aleksandrov } 3046be144f6SNikolay Aleksandrov vg->num_vlans++; 3052594e906SNikolay Aleksandrov } 3062594e906SNikolay Aleksandrov 307a580c76dSNikolay Aleksandrov /* set the state before publishing */ 308a580c76dSNikolay Aleksandrov v->state = BR_STATE_FORWARDING; 309a580c76dSNikolay Aleksandrov 3106be144f6SNikolay Aleksandrov err = rhashtable_lookup_insert_fast(&vg->vlan_hash, &v->vnode, 3116be144f6SNikolay Aleksandrov br_vlan_rht_params); 3122594e906SNikolay Aleksandrov if (err) 3132594e906SNikolay Aleksandrov goto out_fdb_insert; 3142594e906SNikolay Aleksandrov 3152594e906SNikolay Aleksandrov __vlan_add_list(v); 3162594e906SNikolay Aleksandrov __vlan_add_flags(v, flags); 3177b54aaafSNikolay Aleksandrov br_multicast_toggle_one_vlan(v, true); 31880900acdSMike Manning 31980900acdSMike Manning if (p) 32080900acdSMike Manning nbp_vlan_set_vlan_dev_state(p, v->vid); 3212594e906SNikolay Aleksandrov out: 3222594e906SNikolay Aleksandrov return err; 3232594e906SNikolay Aleksandrov 3242594e906SNikolay Aleksandrov out_fdb_insert: 3256be144f6SNikolay Aleksandrov if (br_vlan_should_use(v)) { 3266be144f6SNikolay Aleksandrov br_fdb_find_delete_local(br, p, dev->dev_addr, v->vid); 3276be144f6SNikolay Aleksandrov vg->num_vlans--; 3286be144f6SNikolay Aleksandrov } 3292594e906SNikolay Aleksandrov 3302594e906SNikolay Aleksandrov out_filt: 3312594e906SNikolay Aleksandrov if (p) { 33227973793SIdo Schimmel __vlan_vid_del(dev, br, v); 3332594e906SNikolay Aleksandrov if (masterv) { 3341a3aea25SLi RongQing if (v->stats && masterv->stats != v->stats) 3351a3aea25SLi RongQing free_percpu(v->stats); 3361a3aea25SLi RongQing v->stats = NULL; 3371a3aea25SLi RongQing 338f8ed289fSNikolay Aleksandrov br_vlan_put_master(masterv); 3392594e906SNikolay Aleksandrov v->brvlan = NULL; 3402594e906SNikolay Aleksandrov } 3419c86ce2cSPetr Machata } else { 3429c86ce2cSPetr Machata br_switchdev_port_vlan_del(dev, v->vid); 3432594e906SNikolay Aleksandrov } 3442594e906SNikolay Aleksandrov 3452594e906SNikolay Aleksandrov goto out; 3462594e906SNikolay Aleksandrov } 3472594e906SNikolay Aleksandrov 3482594e906SNikolay Aleksandrov static int __vlan_del(struct net_bridge_vlan *v) 3492594e906SNikolay Aleksandrov { 3502594e906SNikolay Aleksandrov struct net_bridge_vlan *masterv = v; 35177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 3522594e906SNikolay Aleksandrov struct net_bridge_port *p = NULL; 3532594e906SNikolay Aleksandrov int err = 0; 3542594e906SNikolay Aleksandrov 3552594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 356907b1e6eSNikolay Aleksandrov vg = br_vlan_group(v->br); 3572594e906SNikolay Aleksandrov } else { 3582594e906SNikolay Aleksandrov p = v->port; 359907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(v->port); 3602594e906SNikolay Aleksandrov masterv = v->brvlan; 3612594e906SNikolay Aleksandrov } 3622594e906SNikolay Aleksandrov 36377751ee8SNikolay Aleksandrov __vlan_delete_pvid(vg, v->vid); 3642594e906SNikolay Aleksandrov if (p) { 36527973793SIdo Schimmel err = __vlan_vid_del(p->dev, p->br, v); 3662594e906SNikolay Aleksandrov if (err) 3672594e906SNikolay Aleksandrov goto out; 3689c86ce2cSPetr Machata } else { 3699c86ce2cSPetr Machata err = br_switchdev_port_vlan_del(v->br->dev, v->vid); 3709c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 3719c86ce2cSPetr Machata goto out; 3729c86ce2cSPetr Machata err = 0; 3732594e906SNikolay Aleksandrov } 3742594e906SNikolay Aleksandrov 3756be144f6SNikolay Aleksandrov if (br_vlan_should_use(v)) { 3762594e906SNikolay Aleksandrov v->flags &= ~BRIDGE_VLAN_INFO_BRENTRY; 3776be144f6SNikolay Aleksandrov vg->num_vlans--; 3782594e906SNikolay Aleksandrov } 3792594e906SNikolay Aleksandrov 3802594e906SNikolay Aleksandrov if (masterv != v) { 381efa5356bSRoopa Prabhu vlan_tunnel_info_del(vg, v); 38277751ee8SNikolay Aleksandrov rhashtable_remove_fast(&vg->vlan_hash, &v->vnode, 38377751ee8SNikolay Aleksandrov br_vlan_rht_params); 3842594e906SNikolay Aleksandrov __vlan_del_list(v); 38580900acdSMike Manning nbp_vlan_set_vlan_dev_state(p, v->vid); 3867b54aaafSNikolay Aleksandrov br_multicast_toggle_one_vlan(v, false); 387613d61dbSNikolay Aleksandrov br_multicast_port_ctx_deinit(&v->port_mcast_ctx); 3889163a0fcSNikolay Aleksandrov call_rcu(&v->rcu, nbp_vlan_rcu_free); 3892594e906SNikolay Aleksandrov } 3902594e906SNikolay Aleksandrov 391f8ed289fSNikolay Aleksandrov br_vlan_put_master(masterv); 3922594e906SNikolay Aleksandrov out: 393bf361ad3SVivien Didelot return err; 3948580e211SToshiaki Makita } 395243a2e63SVlad Yasevich 396f409d0edSNikolay Aleksandrov static void __vlan_group_free(struct net_bridge_vlan_group *vg) 397f409d0edSNikolay Aleksandrov { 398f409d0edSNikolay Aleksandrov WARN_ON(!list_empty(&vg->vlan_list)); 399f409d0edSNikolay Aleksandrov rhashtable_destroy(&vg->vlan_hash); 400efa5356bSRoopa Prabhu vlan_tunnel_deinit(vg); 401f409d0edSNikolay Aleksandrov kfree(vg); 402f409d0edSNikolay Aleksandrov } 403f409d0edSNikolay Aleksandrov 404f545923bSNikolay Aleksandrov static void __vlan_flush(const struct net_bridge *br, 405f545923bSNikolay Aleksandrov const struct net_bridge_port *p, 406f545923bSNikolay Aleksandrov struct net_bridge_vlan_group *vg) 407243a2e63SVlad Yasevich { 4082594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan, *tmp; 409f545923bSNikolay Aleksandrov u16 v_start = 0, v_end = 0; 4105454f5c2SVladimir Oltean int err; 4112594e906SNikolay Aleksandrov 412f409d0edSNikolay Aleksandrov __vlan_delete_pvid(vg, vg->pvid); 413f545923bSNikolay Aleksandrov list_for_each_entry_safe(vlan, tmp, &vg->vlan_list, vlist) { 414f545923bSNikolay Aleksandrov /* take care of disjoint ranges */ 415f545923bSNikolay Aleksandrov if (!v_start) { 416f545923bSNikolay Aleksandrov v_start = vlan->vid; 417f545923bSNikolay Aleksandrov } else if (vlan->vid - v_end != 1) { 418f545923bSNikolay Aleksandrov /* found range end, notify and start next one */ 419f545923bSNikolay Aleksandrov br_vlan_notify(br, p, v_start, v_end, RTM_DELVLAN); 420f545923bSNikolay Aleksandrov v_start = vlan->vid; 421f545923bSNikolay Aleksandrov } 422f545923bSNikolay Aleksandrov v_end = vlan->vid; 423f545923bSNikolay Aleksandrov 4245454f5c2SVladimir Oltean err = __vlan_del(vlan); 4255454f5c2SVladimir Oltean if (err) { 4265454f5c2SVladimir Oltean br_err(br, 4275454f5c2SVladimir Oltean "port %u(%s) failed to delete vlan %d: %pe\n", 4285454f5c2SVladimir Oltean (unsigned int) p->port_no, p->dev->name, 4295454f5c2SVladimir Oltean vlan->vid, ERR_PTR(err)); 4305454f5c2SVladimir Oltean } 431243a2e63SVlad Yasevich } 432243a2e63SVlad Yasevich 433f545923bSNikolay Aleksandrov /* notify about the last/whole vlan range */ 434f545923bSNikolay Aleksandrov if (v_start) 435f545923bSNikolay Aleksandrov br_vlan_notify(br, p, v_start, v_end, RTM_DELVLAN); 436f545923bSNikolay Aleksandrov } 437f545923bSNikolay Aleksandrov 43878851988SVlad Yasevich struct sk_buff *br_handle_vlan(struct net_bridge *br, 43911538d03SRoopa Prabhu const struct net_bridge_port *p, 4402594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 441a37b85c9SVlad Yasevich struct sk_buff *skb) 442a37b85c9SVlad Yasevich { 443281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats; 4442594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 445a37b85c9SVlad Yasevich u16 vid; 446a37b85c9SVlad Yasevich 44720adfa1aSVlad Yasevich /* If this packet was not filtered at input, let it pass */ 44820adfa1aSVlad Yasevich if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) 44978851988SVlad Yasevich goto out; 45078851988SVlad Yasevich 4512594e906SNikolay Aleksandrov /* At this point, we know that the frame was filtered and contains 4522594e906SNikolay Aleksandrov * a valid vlan id. If the vlan id has untagged flag set, 4532594e906SNikolay Aleksandrov * send untagged; otherwise, send tagged. 4542594e906SNikolay Aleksandrov */ 4552594e906SNikolay Aleksandrov br_vlan_get_tag(skb, &vid); 4562594e906SNikolay Aleksandrov v = br_vlan_find(vg, vid); 4572594e906SNikolay Aleksandrov /* Vlan entry must be configured at this point. The 458fc92f745SVlad Yasevich * only exception is the bridge is set in promisc mode and the 459fc92f745SVlad Yasevich * packet is destined for the bridge device. In this case 460fc92f745SVlad Yasevich * pass the packet as is. 461fc92f745SVlad Yasevich */ 4622594e906SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) { 463fc92f745SVlad Yasevich if ((br->dev->flags & IFF_PROMISC) && skb->dev == br->dev) { 464fc92f745SVlad Yasevich goto out; 465fc92f745SVlad Yasevich } else { 466fc92f745SVlad Yasevich kfree_skb(skb); 467fc92f745SVlad Yasevich return NULL; 468fc92f745SVlad Yasevich } 469fc92f745SVlad Yasevich } 470ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 4716dada9b1SNikolay Aleksandrov stats = this_cpu_ptr(v->stats); 4726dada9b1SNikolay Aleksandrov u64_stats_update_begin(&stats->syncp); 4736dada9b1SNikolay Aleksandrov stats->tx_bytes += skb->len; 4746dada9b1SNikolay Aleksandrov stats->tx_packets++; 4756dada9b1SNikolay Aleksandrov u64_stats_update_end(&stats->syncp); 4766dada9b1SNikolay Aleksandrov } 4776dada9b1SNikolay Aleksandrov 47847211192STobias Waldekranz /* If the skb will be sent using forwarding offload, the assumption is 47947211192STobias Waldekranz * that the switchdev will inject the packet into hardware together 48047211192STobias Waldekranz * with the bridge VLAN, so that it can be forwarded according to that 48147211192STobias Waldekranz * VLAN. The switchdev should deal with popping the VLAN header in 48247211192STobias Waldekranz * hardware on each egress port as appropriate. So only strip the VLAN 48347211192STobias Waldekranz * header if forwarding offload is not being used. 48447211192STobias Waldekranz */ 48547211192STobias Waldekranz if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED && 48647211192STobias Waldekranz !br_switchdev_frame_uses_tx_fwd_offload(skb)) 4875978f8a9SMichał Mirosław __vlan_hwaccel_clear_tag(skb); 48811538d03SRoopa Prabhu 48911538d03SRoopa Prabhu if (p && (p->flags & BR_VLAN_TUNNEL) && 49011538d03SRoopa Prabhu br_handle_egress_vlan_tunnel(skb, v)) { 49111538d03SRoopa Prabhu kfree_skb(skb); 49211538d03SRoopa Prabhu return NULL; 49311538d03SRoopa Prabhu } 49478851988SVlad Yasevich out: 49578851988SVlad Yasevich return skb; 49678851988SVlad Yasevich } 49778851988SVlad Yasevich 49878851988SVlad Yasevich /* Called under RCU */ 4996dada9b1SNikolay Aleksandrov static bool __allowed_ingress(const struct net_bridge *br, 5006dada9b1SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 501a580c76dSNikolay Aleksandrov struct sk_buff *skb, u16 *vid, 502f4b7002aSNikolay Aleksandrov u8 *state, 503f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 50478851988SVlad Yasevich { 505281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats; 5066dada9b1SNikolay Aleksandrov struct net_bridge_vlan *v; 5078580e211SToshiaki Makita bool tagged; 508a37b85c9SVlad Yasevich 50920adfa1aSVlad Yasevich BR_INPUT_SKB_CB(skb)->vlan_filtered = true; 51012464bb8SToshiaki Makita /* If vlan tx offload is disabled on bridge device and frame was 51112464bb8SToshiaki Makita * sent from vlan device on the bridge device, it does not have 51212464bb8SToshiaki Makita * HW accelerated vlan tag. 51312464bb8SToshiaki Makita */ 514df8a39deSJiri Pirko if (unlikely(!skb_vlan_tag_present(skb) && 5156dada9b1SNikolay Aleksandrov skb->protocol == br->vlan_proto)) { 5160d5501c1SVlad Yasevich skb = skb_vlan_untag(skb); 51712464bb8SToshiaki Makita if (unlikely(!skb)) 51812464bb8SToshiaki Makita return false; 51912464bb8SToshiaki Makita } 52012464bb8SToshiaki Makita 5218580e211SToshiaki Makita if (!br_vlan_get_tag(skb, vid)) { 5228580e211SToshiaki Makita /* Tagged frame */ 5236dada9b1SNikolay Aleksandrov if (skb->vlan_proto != br->vlan_proto) { 5248580e211SToshiaki Makita /* Protocol-mismatch, empty out vlan_tci for new tag */ 5258580e211SToshiaki Makita skb_push(skb, ETH_HLEN); 52662749e2cSJiri Pirko skb = vlan_insert_tag_set_proto(skb, skb->vlan_proto, 527df8a39deSJiri Pirko skb_vlan_tag_get(skb)); 5288580e211SToshiaki Makita if (unlikely(!skb)) 5298580e211SToshiaki Makita return false; 5308580e211SToshiaki Makita 5318580e211SToshiaki Makita skb_pull(skb, ETH_HLEN); 5328580e211SToshiaki Makita skb_reset_mac_len(skb); 5338580e211SToshiaki Makita *vid = 0; 5348580e211SToshiaki Makita tagged = false; 5358580e211SToshiaki Makita } else { 5368580e211SToshiaki Makita tagged = true; 5378580e211SToshiaki Makita } 5388580e211SToshiaki Makita } else { 5398580e211SToshiaki Makita /* Untagged frame */ 5408580e211SToshiaki Makita tagged = false; 5418580e211SToshiaki Makita } 5428580e211SToshiaki Makita 543b90356ceSToshiaki Makita if (!*vid) { 54477751ee8SNikolay Aleksandrov u16 pvid = br_get_pvid(vg); 54577751ee8SNikolay Aleksandrov 546b90356ceSToshiaki Makita /* Frame had a tag with VID 0 or did not have a tag. 547b90356ceSToshiaki Makita * See if pvid is set on this port. That tells us which 548b90356ceSToshiaki Makita * vlan untagged or priority-tagged traffic belongs to. 54978851988SVlad Yasevich */ 5503df6bf45SVlad Yasevich if (!pvid) 551eb707618SToshiaki Makita goto drop; 55278851988SVlad Yasevich 553b90356ceSToshiaki Makita /* PVID is set on this port. Any untagged or priority-tagged 554b90356ceSToshiaki Makita * ingress frame is considered to belong to this vlan. 55578851988SVlad Yasevich */ 556dfb5fa32SToshiaki Makita *vid = pvid; 5578580e211SToshiaki Makita if (likely(!tagged)) 558b90356ceSToshiaki Makita /* Untagged Frame. */ 5596dada9b1SNikolay Aleksandrov __vlan_hwaccel_put_tag(skb, br->vlan_proto, pvid); 560b90356ceSToshiaki Makita else 561b90356ceSToshiaki Makita /* Priority-tagged Frame. 5625978f8a9SMichał Mirosław * At this point, we know that skb->vlan_tci VID 5635978f8a9SMichał Mirosław * field was 0. 564b90356ceSToshiaki Makita * We update only VID field and preserve PCP field. 565b90356ceSToshiaki Makita */ 566b90356ceSToshiaki Makita skb->vlan_tci |= pvid; 567b90356ceSToshiaki Makita 568f4b7002aSNikolay Aleksandrov /* if snooping and stats are disabled we can avoid the lookup */ 569f4b7002aSNikolay Aleksandrov if (!br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && 570f4b7002aSNikolay Aleksandrov !br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 571a580c76dSNikolay Aleksandrov if (*state == BR_STATE_FORWARDING) { 572a580c76dSNikolay Aleksandrov *state = br_vlan_get_pvid_state(vg); 573fd20d973STim Yi if (!br_vlan_state_allowed(*state, true)) 574fd20d973STim Yi goto drop; 57578851988SVlad Yasevich } 576fd20d973STim Yi return true; 577a580c76dSNikolay Aleksandrov } 578a580c76dSNikolay Aleksandrov } 57977751ee8SNikolay Aleksandrov v = br_vlan_find(vg, *vid); 5806dada9b1SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) 5816dada9b1SNikolay Aleksandrov goto drop; 5826dada9b1SNikolay Aleksandrov 583a580c76dSNikolay Aleksandrov if (*state == BR_STATE_FORWARDING) { 584a580c76dSNikolay Aleksandrov *state = br_vlan_get_state(v); 585a580c76dSNikolay Aleksandrov if (!br_vlan_state_allowed(*state, true)) 586a580c76dSNikolay Aleksandrov goto drop; 587a580c76dSNikolay Aleksandrov } 588a580c76dSNikolay Aleksandrov 589ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 5906dada9b1SNikolay Aleksandrov stats = this_cpu_ptr(v->stats); 5916dada9b1SNikolay Aleksandrov u64_stats_update_begin(&stats->syncp); 5926dada9b1SNikolay Aleksandrov stats->rx_bytes += skb->len; 5936dada9b1SNikolay Aleksandrov stats->rx_packets++; 5946dada9b1SNikolay Aleksandrov u64_stats_update_end(&stats->syncp); 5956dada9b1SNikolay Aleksandrov } 5966dada9b1SNikolay Aleksandrov 597f4b7002aSNikolay Aleksandrov *vlan = v; 598f4b7002aSNikolay Aleksandrov 599a37b85c9SVlad Yasevich return true; 6006dada9b1SNikolay Aleksandrov 601eb707618SToshiaki Makita drop: 602eb707618SToshiaki Makita kfree_skb(skb); 603a37b85c9SVlad Yasevich return false; 604a37b85c9SVlad Yasevich } 605a37b85c9SVlad Yasevich 60677751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 60777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 608f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 609f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 6102594e906SNikolay Aleksandrov { 6112594e906SNikolay Aleksandrov /* If VLAN filtering is disabled on the bridge, all packets are 6122594e906SNikolay Aleksandrov * permitted. 6132594e906SNikolay Aleksandrov */ 614f4b7002aSNikolay Aleksandrov *vlan = NULL; 615ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED)) { 6162594e906SNikolay Aleksandrov BR_INPUT_SKB_CB(skb)->vlan_filtered = false; 6172594e906SNikolay Aleksandrov return true; 6182594e906SNikolay Aleksandrov } 6192594e906SNikolay Aleksandrov 620f4b7002aSNikolay Aleksandrov return __allowed_ingress(br, vg, skb, vid, state, vlan); 6212594e906SNikolay Aleksandrov } 6222594e906SNikolay Aleksandrov 62385f46c6bSVlad Yasevich /* Called under RCU. */ 6242594e906SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 62585f46c6bSVlad Yasevich const struct sk_buff *skb) 62685f46c6bSVlad Yasevich { 6272594e906SNikolay Aleksandrov const struct net_bridge_vlan *v; 62885f46c6bSVlad Yasevich u16 vid; 62985f46c6bSVlad Yasevich 63020adfa1aSVlad Yasevich /* If this packet was not filtered at input, let it pass */ 63120adfa1aSVlad Yasevich if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) 63285f46c6bSVlad Yasevich return true; 63385f46c6bSVlad Yasevich 63485f46c6bSVlad Yasevich br_vlan_get_tag(skb, &vid); 6352594e906SNikolay Aleksandrov v = br_vlan_find(vg, vid); 636a580c76dSNikolay Aleksandrov if (v && br_vlan_should_use(v) && 637a580c76dSNikolay Aleksandrov br_vlan_state_allowed(br_vlan_get_state(v), false)) 63885f46c6bSVlad Yasevich return true; 63985f46c6bSVlad Yasevich 64085f46c6bSVlad Yasevich return false; 64185f46c6bSVlad Yasevich } 64285f46c6bSVlad Yasevich 643e0d7968aSToshiaki Makita /* Called under RCU */ 644e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid) 645e0d7968aSToshiaki Makita { 646468e7944SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 647e0d7968aSToshiaki Makita struct net_bridge *br = p->br; 648a580c76dSNikolay Aleksandrov struct net_bridge_vlan *v; 649e0d7968aSToshiaki Makita 65020adfa1aSVlad Yasevich /* If filtering was disabled at input, let it pass. */ 651ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED)) 652e0d7968aSToshiaki Makita return true; 653e0d7968aSToshiaki Makita 654eca1e006SIdo Schimmel vg = nbp_vlan_group_rcu(p); 655468e7944SNikolay Aleksandrov if (!vg || !vg->num_vlans) 656e0d7968aSToshiaki Makita return false; 657e0d7968aSToshiaki Makita 6588580e211SToshiaki Makita if (!br_vlan_get_tag(skb, vid) && skb->vlan_proto != br->vlan_proto) 6598580e211SToshiaki Makita *vid = 0; 6608580e211SToshiaki Makita 661e0d7968aSToshiaki Makita if (!*vid) { 66277751ee8SNikolay Aleksandrov *vid = br_get_pvid(vg); 663a580c76dSNikolay Aleksandrov if (!*vid || 664a580c76dSNikolay Aleksandrov !br_vlan_state_allowed(br_vlan_get_pvid_state(vg), true)) 665e0d7968aSToshiaki Makita return false; 666e0d7968aSToshiaki Makita 667e0d7968aSToshiaki Makita return true; 668e0d7968aSToshiaki Makita } 669e0d7968aSToshiaki Makita 670a580c76dSNikolay Aleksandrov v = br_vlan_find(vg, *vid); 671a580c76dSNikolay Aleksandrov if (v && br_vlan_state_allowed(br_vlan_get_state(v), true)) 672e0d7968aSToshiaki Makita return true; 673e0d7968aSToshiaki Makita 674e0d7968aSToshiaki Makita return false; 675e0d7968aSToshiaki Makita } 676e0d7968aSToshiaki Makita 677dbd6dc75SPetr Machata static int br_vlan_add_existing(struct net_bridge *br, 678dbd6dc75SPetr Machata struct net_bridge_vlan_group *vg, 679dbd6dc75SPetr Machata struct net_bridge_vlan *vlan, 680169327d5SPetr Machata u16 flags, bool *changed, 681169327d5SPetr Machata struct netlink_ext_ack *extack) 682dbd6dc75SPetr Machata { 683dbd6dc75SPetr Machata int err; 684dbd6dc75SPetr Machata 685b2bc58d4SVladimir Oltean /* Trying to change flags of non-existent bridge vlan */ 686b2bc58d4SVladimir Oltean if (!br_vlan_is_brentry(vlan) && !(flags & BRIDGE_VLAN_INFO_BRENTRY)) 687b2bc58d4SVladimir Oltean return -EINVAL; 688b2bc58d4SVladimir Oltean 689169327d5SPetr Machata err = br_switchdev_port_vlan_add(br->dev, vlan->vid, flags, extack); 6909c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 6919c86ce2cSPetr Machata return err; 6929c86ce2cSPetr Machata 693dbd6dc75SPetr Machata if (!br_vlan_is_brentry(vlan)) { 694dbd6dc75SPetr Machata /* It was only kept for port vlans, now make it real */ 695f6814fdcSVladimir Oltean err = br_fdb_add_local(br, NULL, br->dev->dev_addr, vlan->vid); 696dbd6dc75SPetr Machata if (err) { 697dbd6dc75SPetr Machata br_err(br, "failed to insert local address into bridge forwarding table\n"); 6989c86ce2cSPetr Machata goto err_fdb_insert; 699dbd6dc75SPetr Machata } 700dbd6dc75SPetr Machata 701dbd6dc75SPetr Machata refcount_inc(&vlan->refcnt); 702dbd6dc75SPetr Machata vlan->flags |= BRIDGE_VLAN_INFO_BRENTRY; 703dbd6dc75SPetr Machata vg->num_vlans++; 704dbd6dc75SPetr Machata *changed = true; 705b92dace3SNikolay Aleksandrov br_multicast_toggle_one_vlan(vlan, true); 706dbd6dc75SPetr Machata } 707dbd6dc75SPetr Machata 708dbd6dc75SPetr Machata if (__vlan_add_flags(vlan, flags)) 709dbd6dc75SPetr Machata *changed = true; 710dbd6dc75SPetr Machata 711dbd6dc75SPetr Machata return 0; 7129c86ce2cSPetr Machata 7139c86ce2cSPetr Machata err_fdb_insert: 7149c86ce2cSPetr Machata br_switchdev_port_vlan_del(br->dev, vlan->vid); 7159c86ce2cSPetr Machata return err; 716dbd6dc75SPetr Machata } 717dbd6dc75SPetr Machata 7188adff41cSToshiaki Makita /* Must be protected by RTNL. 7198adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 720f418af63SNikolay Aleksandrov * changed must be true only if the vlan was created or updated 7218adff41cSToshiaki Makita */ 722169327d5SPetr Machata int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, bool *changed, 723169327d5SPetr Machata struct netlink_ext_ack *extack) 724243a2e63SVlad Yasevich { 725907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 7262594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 7272594e906SNikolay Aleksandrov int ret; 728243a2e63SVlad Yasevich 729243a2e63SVlad Yasevich ASSERT_RTNL(); 730243a2e63SVlad Yasevich 731f418af63SNikolay Aleksandrov *changed = false; 732907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 733907b1e6eSNikolay Aleksandrov vlan = br_vlan_find(vg, vid); 734dbd6dc75SPetr Machata if (vlan) 735169327d5SPetr Machata return br_vlan_add_existing(br, vg, vlan, flags, changed, 736169327d5SPetr Machata extack); 737243a2e63SVlad Yasevich 7382594e906SNikolay Aleksandrov vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); 7392594e906SNikolay Aleksandrov if (!vlan) 740243a2e63SVlad Yasevich return -ENOMEM; 741243a2e63SVlad Yasevich 742281cc284SHeiner Kallweit vlan->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); 7436dada9b1SNikolay Aleksandrov if (!vlan->stats) { 7446dada9b1SNikolay Aleksandrov kfree(vlan); 7456dada9b1SNikolay Aleksandrov return -ENOMEM; 7466dada9b1SNikolay Aleksandrov } 7472594e906SNikolay Aleksandrov vlan->vid = vid; 7482594e906SNikolay Aleksandrov vlan->flags = flags | BRIDGE_VLAN_INFO_MASTER; 7492594e906SNikolay Aleksandrov vlan->flags &= ~BRIDGE_VLAN_INFO_PVID; 7502594e906SNikolay Aleksandrov vlan->br = br; 7512594e906SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_BRENTRY) 75225127759SReshetova, Elena refcount_set(&vlan->refcnt, 1); 753169327d5SPetr Machata ret = __vlan_add(vlan, flags, extack); 7546dada9b1SNikolay Aleksandrov if (ret) { 7556dada9b1SNikolay Aleksandrov free_percpu(vlan->stats); 7562594e906SNikolay Aleksandrov kfree(vlan); 757f418af63SNikolay Aleksandrov } else { 758f418af63SNikolay Aleksandrov *changed = true; 7596dada9b1SNikolay Aleksandrov } 760243a2e63SVlad Yasevich 7612594e906SNikolay Aleksandrov return ret; 762243a2e63SVlad Yasevich } 763243a2e63SVlad Yasevich 7648adff41cSToshiaki Makita /* Must be protected by RTNL. 7658adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 7668adff41cSToshiaki Makita */ 767243a2e63SVlad Yasevich int br_vlan_delete(struct net_bridge *br, u16 vid) 768243a2e63SVlad Yasevich { 769907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 7702594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 771243a2e63SVlad Yasevich 772243a2e63SVlad Yasevich ASSERT_RTNL(); 773243a2e63SVlad Yasevich 774907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 775907b1e6eSNikolay Aleksandrov v = br_vlan_find(vg, vid); 7762594e906SNikolay Aleksandrov if (!v || !br_vlan_is_brentry(v)) 7772594e906SNikolay Aleksandrov return -ENOENT; 778243a2e63SVlad Yasevich 779424bb9c9SToshiaki Makita br_fdb_find_delete_local(br, NULL, br->dev->dev_addr, vid); 7803741873bSRoopa Prabhu br_fdb_delete_by_port(br, NULL, vid, 0); 781bc9a25d2SVlad Yasevich 782efa5356bSRoopa Prabhu vlan_tunnel_info_del(vg, v); 783efa5356bSRoopa Prabhu 7842594e906SNikolay Aleksandrov return __vlan_del(v); 785243a2e63SVlad Yasevich } 786243a2e63SVlad Yasevich 787243a2e63SVlad Yasevich void br_vlan_flush(struct net_bridge *br) 788243a2e63SVlad Yasevich { 789f409d0edSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 790f409d0edSNikolay Aleksandrov 791243a2e63SVlad Yasevich ASSERT_RTNL(); 792243a2e63SVlad Yasevich 793f409d0edSNikolay Aleksandrov vg = br_vlan_group(br); 794f545923bSNikolay Aleksandrov __vlan_flush(br, NULL, vg); 795f409d0edSNikolay Aleksandrov RCU_INIT_POINTER(br->vlgrp, NULL); 796f409d0edSNikolay Aleksandrov synchronize_rcu(); 797f409d0edSNikolay Aleksandrov __vlan_group_free(vg); 798243a2e63SVlad Yasevich } 799243a2e63SVlad Yasevich 8002594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid) 8012b292fb4SToshiaki Makita { 8022594e906SNikolay Aleksandrov if (!vg) 8032594e906SNikolay Aleksandrov return NULL; 8042b292fb4SToshiaki Makita 8052594e906SNikolay Aleksandrov return br_vlan_lookup(&vg->vlan_hash, vid); 8062b292fb4SToshiaki Makita } 8072b292fb4SToshiaki Makita 808204177f3SToshiaki Makita /* Must be protected by RTNL. */ 809204177f3SToshiaki Makita static void recalculate_group_addr(struct net_bridge *br) 810204177f3SToshiaki Makita { 811be3664a0SNikolay Aleksandrov if (br_opt_get(br, BROPT_GROUP_ADDR_SET)) 812204177f3SToshiaki Makita return; 813204177f3SToshiaki Makita 814204177f3SToshiaki Makita spin_lock_bh(&br->lock); 815ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED) || 816ae75767eSNikolay Aleksandrov br->vlan_proto == htons(ETH_P_8021Q)) { 817204177f3SToshiaki Makita /* Bridge Group Address */ 818204177f3SToshiaki Makita br->group_addr[5] = 0x00; 819204177f3SToshiaki Makita } else { /* vlan_enabled && ETH_P_8021AD */ 820204177f3SToshiaki Makita /* Provider Bridge Group Address */ 821204177f3SToshiaki Makita br->group_addr[5] = 0x08; 822204177f3SToshiaki Makita } 823204177f3SToshiaki Makita spin_unlock_bh(&br->lock); 824204177f3SToshiaki Makita } 825204177f3SToshiaki Makita 826204177f3SToshiaki Makita /* Must be protected by RTNL. */ 827204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br) 828204177f3SToshiaki Makita { 829ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED) || 830ae75767eSNikolay Aleksandrov br->vlan_proto == htons(ETH_P_8021Q)) 831204177f3SToshiaki Makita br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT; 832204177f3SToshiaki Makita else /* vlan_enabled && ETH_P_8021AD */ 833204177f3SToshiaki Makita br->group_fwd_mask_required = BR_GROUPFWD_8021AD & 834204177f3SToshiaki Makita ~(1u << br->group_addr[5]); 835204177f3SToshiaki Makita } 836204177f3SToshiaki Makita 8379e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 8389e781401SVladimir Oltean struct netlink_ext_ack *extack) 839243a2e63SVlad Yasevich { 8406b72a770SElad Raz struct switchdev_attr attr = { 8416b72a770SElad Raz .orig_dev = br->dev, 8426b72a770SElad Raz .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, 8436b72a770SElad Raz .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 8446b72a770SElad Raz .u.vlan_filtering = val, 8456b72a770SElad Raz }; 8466b72a770SElad Raz int err; 8476b72a770SElad Raz 848ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_ENABLED) == !!val) 849a7854037SNikolay Aleksandrov return 0; 850243a2e63SVlad Yasevich 851ae75767eSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_ENABLED, !!val); 852f7cdb3ecSVladimir Oltean 853f7cdb3ecSVladimir Oltean err = switchdev_port_attr_set(br->dev, &attr, extack); 854f7cdb3ecSVladimir Oltean if (err && err != -EOPNOTSUPP) { 855f7cdb3ecSVladimir Oltean br_opt_toggle(br, BROPT_VLAN_ENABLED, !val); 856f7cdb3ecSVladimir Oltean return err; 857f7cdb3ecSVladimir Oltean } 858f7cdb3ecSVladimir Oltean 8592796d0c6SVlad Yasevich br_manage_promisc(br); 860204177f3SToshiaki Makita recalculate_group_addr(br); 861204177f3SToshiaki Makita br_recalculate_fwd_mask(br); 862f4b7002aSNikolay Aleksandrov if (!val && br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED)) { 863f4b7002aSNikolay Aleksandrov br_info(br, "vlan filtering disabled, automatically disabling multicast vlan snooping\n"); 864f4b7002aSNikolay Aleksandrov br_multicast_toggle_vlan_snooping(br, false, NULL); 865f4b7002aSNikolay Aleksandrov } 866243a2e63SVlad Yasevich 867a7854037SNikolay Aleksandrov return 0; 868a7854037SNikolay Aleksandrov } 869a7854037SNikolay Aleksandrov 8701f51445aSIdo Schimmel bool br_vlan_enabled(const struct net_device *dev) 8711f51445aSIdo Schimmel { 8721f51445aSIdo Schimmel struct net_bridge *br = netdev_priv(dev); 8731f51445aSIdo Schimmel 874ae75767eSNikolay Aleksandrov return br_opt_get(br, BROPT_VLAN_ENABLED); 8751f51445aSIdo Schimmel } 8761f51445aSIdo Schimmel EXPORT_SYMBOL_GPL(br_vlan_enabled); 8771f51445aSIdo Schimmel 87831aed46fSwenxu int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto) 87931aed46fSwenxu { 88031aed46fSwenxu struct net_bridge *br = netdev_priv(dev); 88131aed46fSwenxu 88231aed46fSwenxu *p_proto = ntohs(br->vlan_proto); 88331aed46fSwenxu 88431aed46fSwenxu return 0; 88531aed46fSwenxu } 88631aed46fSwenxu EXPORT_SYMBOL_GPL(br_vlan_get_proto); 88731aed46fSwenxu 888dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 889dcbdf135SVladimir Oltean struct netlink_ext_ack *extack) 890204177f3SToshiaki Makita { 89122ec19f3SDanielle Ratson struct switchdev_attr attr = { 89222ec19f3SDanielle Ratson .orig_dev = br->dev, 89322ec19f3SDanielle Ratson .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL, 89422ec19f3SDanielle Ratson .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 89522ec19f3SDanielle Ratson .u.vlan_protocol = ntohs(proto), 89622ec19f3SDanielle Ratson }; 897204177f3SToshiaki Makita int err = 0; 898204177f3SToshiaki Makita struct net_bridge_port *p; 8992594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 900907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 90122ec19f3SDanielle Ratson __be16 oldproto = br->vlan_proto; 902204177f3SToshiaki Makita 903204177f3SToshiaki Makita if (br->vlan_proto == proto) 904d2d427b3SToshiaki Makita return 0; 905204177f3SToshiaki Makita 906dcbdf135SVladimir Oltean err = switchdev_port_attr_set(br->dev, &attr, extack); 90722ec19f3SDanielle Ratson if (err && err != -EOPNOTSUPP) 90822ec19f3SDanielle Ratson return err; 90922ec19f3SDanielle Ratson 910204177f3SToshiaki Makita /* Add VLANs for the new proto to the device filter. */ 911204177f3SToshiaki Makita list_for_each_entry(p, &br->port_list, list) { 912907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 913907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) { 9142594e906SNikolay Aleksandrov err = vlan_vid_add(p->dev, proto, vlan->vid); 915204177f3SToshiaki Makita if (err) 916204177f3SToshiaki Makita goto err_filt; 917204177f3SToshiaki Makita } 918204177f3SToshiaki Makita } 919204177f3SToshiaki Makita 920204177f3SToshiaki Makita br->vlan_proto = proto; 921204177f3SToshiaki Makita 922204177f3SToshiaki Makita recalculate_group_addr(br); 923204177f3SToshiaki Makita br_recalculate_fwd_mask(br); 924204177f3SToshiaki Makita 925204177f3SToshiaki Makita /* Delete VLANs for the old proto from the device filter. */ 926907b1e6eSNikolay Aleksandrov list_for_each_entry(p, &br->port_list, list) { 927907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 928907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) 9292594e906SNikolay Aleksandrov vlan_vid_del(p->dev, oldproto, vlan->vid); 930907b1e6eSNikolay Aleksandrov } 931204177f3SToshiaki Makita 932d2d427b3SToshiaki Makita return 0; 933204177f3SToshiaki Makita 934204177f3SToshiaki Makita err_filt: 93522ec19f3SDanielle Ratson attr.u.vlan_protocol = ntohs(oldproto); 936dcbdf135SVladimir Oltean switchdev_port_attr_set(br->dev, &attr, NULL); 93722ec19f3SDanielle Ratson 938907b1e6eSNikolay Aleksandrov list_for_each_entry_continue_reverse(vlan, &vg->vlan_list, vlist) 9392594e906SNikolay Aleksandrov vlan_vid_del(p->dev, proto, vlan->vid); 940204177f3SToshiaki Makita 941907b1e6eSNikolay Aleksandrov list_for_each_entry_continue_reverse(p, &br->port_list, list) { 942907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 943907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) 9442594e906SNikolay Aleksandrov vlan_vid_del(p->dev, proto, vlan->vid); 945907b1e6eSNikolay Aleksandrov } 946204177f3SToshiaki Makita 947d2d427b3SToshiaki Makita return err; 948d2d427b3SToshiaki Makita } 949d2d427b3SToshiaki Makita 9509e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 9519e781401SVladimir Oltean struct netlink_ext_ack *extack) 952d2d427b3SToshiaki Makita { 953a98c0c47SMenglong Dong if (!eth_type_vlan(htons(val))) 954d2d427b3SToshiaki Makita return -EPROTONOSUPPORT; 955d2d427b3SToshiaki Makita 956dcbdf135SVladimir Oltean return __br_vlan_set_proto(br, htons(val), extack); 957204177f3SToshiaki Makita } 958204177f3SToshiaki Makita 9596dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val) 9606dada9b1SNikolay Aleksandrov { 9616dada9b1SNikolay Aleksandrov switch (val) { 9626dada9b1SNikolay Aleksandrov case 0: 9636dada9b1SNikolay Aleksandrov case 1: 964ae75767eSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_STATS_ENABLED, !!val); 9656dada9b1SNikolay Aleksandrov break; 9666dada9b1SNikolay Aleksandrov default: 9676dada9b1SNikolay Aleksandrov return -EINVAL; 9686dada9b1SNikolay Aleksandrov } 9696dada9b1SNikolay Aleksandrov 9706dada9b1SNikolay Aleksandrov return 0; 9716dada9b1SNikolay Aleksandrov } 9726dada9b1SNikolay Aleksandrov 9739163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val) 9749163a0fcSNikolay Aleksandrov { 9759163a0fcSNikolay Aleksandrov struct net_bridge_port *p; 9769163a0fcSNikolay Aleksandrov 9779163a0fcSNikolay Aleksandrov /* allow to change the option if there are no port vlans configured */ 9789163a0fcSNikolay Aleksandrov list_for_each_entry(p, &br->port_list, list) { 9799163a0fcSNikolay Aleksandrov struct net_bridge_vlan_group *vg = nbp_vlan_group(p); 9809163a0fcSNikolay Aleksandrov 9819163a0fcSNikolay Aleksandrov if (vg->num_vlans) 9829163a0fcSNikolay Aleksandrov return -EBUSY; 9839163a0fcSNikolay Aleksandrov } 9849163a0fcSNikolay Aleksandrov 9859163a0fcSNikolay Aleksandrov switch (val) { 9869163a0fcSNikolay Aleksandrov case 0: 9879163a0fcSNikolay Aleksandrov case 1: 9889163a0fcSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_STATS_PER_PORT, !!val); 9899163a0fcSNikolay Aleksandrov break; 9909163a0fcSNikolay Aleksandrov default: 9919163a0fcSNikolay Aleksandrov return -EINVAL; 9929163a0fcSNikolay Aleksandrov } 9939163a0fcSNikolay Aleksandrov 9949163a0fcSNikolay Aleksandrov return 0; 9959163a0fcSNikolay Aleksandrov } 9969163a0fcSNikolay Aleksandrov 99777751ee8SNikolay Aleksandrov static bool vlan_default_pvid(struct net_bridge_vlan_group *vg, u16 vid) 9985be5a2dfSVlad Yasevich { 9992594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 10002594e906SNikolay Aleksandrov 100177751ee8SNikolay Aleksandrov if (vid != vg->pvid) 10022594e906SNikolay Aleksandrov return false; 10032594e906SNikolay Aleksandrov 10042594e906SNikolay Aleksandrov v = br_vlan_lookup(&vg->vlan_hash, vid); 10052594e906SNikolay Aleksandrov if (v && br_vlan_should_use(v) && 10062594e906SNikolay Aleksandrov (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)) 10072594e906SNikolay Aleksandrov return true; 10082594e906SNikolay Aleksandrov 10092594e906SNikolay Aleksandrov return false; 10105be5a2dfSVlad Yasevich } 10115be5a2dfSVlad Yasevich 10125be5a2dfSVlad Yasevich static void br_vlan_disable_default_pvid(struct net_bridge *br) 10135be5a2dfSVlad Yasevich { 10145be5a2dfSVlad Yasevich struct net_bridge_port *p; 10155be5a2dfSVlad Yasevich u16 pvid = br->default_pvid; 10165be5a2dfSVlad Yasevich 10175be5a2dfSVlad Yasevich /* Disable default_pvid on all ports where it is still 10185be5a2dfSVlad Yasevich * configured. 10195be5a2dfSVlad Yasevich */ 1020f545923bSNikolay Aleksandrov if (vlan_default_pvid(br_vlan_group(br), pvid)) { 1021f545923bSNikolay Aleksandrov if (!br_vlan_delete(br, pvid)) 1022f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, pvid, 0, RTM_DELVLAN); 1023f545923bSNikolay Aleksandrov } 10245be5a2dfSVlad Yasevich 10255be5a2dfSVlad Yasevich list_for_each_entry(p, &br->port_list, list) { 1026f545923bSNikolay Aleksandrov if (vlan_default_pvid(nbp_vlan_group(p), pvid) && 1027f545923bSNikolay Aleksandrov !nbp_vlan_delete(p, pvid)) 1028f545923bSNikolay Aleksandrov br_vlan_notify(br, p, pvid, 0, RTM_DELVLAN); 10295be5a2dfSVlad Yasevich } 10305be5a2dfSVlad Yasevich 10315be5a2dfSVlad Yasevich br->default_pvid = 0; 10325be5a2dfSVlad Yasevich } 10335be5a2dfSVlad Yasevich 1034169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1035169327d5SPetr Machata struct netlink_ext_ack *extack) 10365be5a2dfSVlad Yasevich { 10372594e906SNikolay Aleksandrov const struct net_bridge_vlan *pvent; 1038907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 10395be5a2dfSVlad Yasevich struct net_bridge_port *p; 1040f418af63SNikolay Aleksandrov unsigned long *changed; 1041f418af63SNikolay Aleksandrov bool vlchange; 10425be5a2dfSVlad Yasevich u16 old_pvid; 10435be5a2dfSVlad Yasevich int err = 0; 10445be5a2dfSVlad Yasevich 10450f963b75SNikolay Aleksandrov if (!pvid) { 10460f963b75SNikolay Aleksandrov br_vlan_disable_default_pvid(br); 10470f963b75SNikolay Aleksandrov return 0; 10480f963b75SNikolay Aleksandrov } 10490f963b75SNikolay Aleksandrov 1050459479daSAndy Shevchenko changed = bitmap_zalloc(BR_MAX_PORTS, GFP_KERNEL); 10515be5a2dfSVlad Yasevich if (!changed) 10525be5a2dfSVlad Yasevich return -ENOMEM; 10535be5a2dfSVlad Yasevich 10545be5a2dfSVlad Yasevich old_pvid = br->default_pvid; 10555be5a2dfSVlad Yasevich 10565be5a2dfSVlad Yasevich /* Update default_pvid config only if we do not conflict with 10575be5a2dfSVlad Yasevich * user configuration. 10585be5a2dfSVlad Yasevich */ 1059907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 1060907b1e6eSNikolay Aleksandrov pvent = br_vlan_find(vg, pvid); 1061907b1e6eSNikolay Aleksandrov if ((!old_pvid || vlan_default_pvid(vg, old_pvid)) && 10622594e906SNikolay Aleksandrov (!pvent || !br_vlan_should_use(pvent))) { 10635be5a2dfSVlad Yasevich err = br_vlan_add(br, pvid, 10645be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 10652594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 1066f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, 1067169327d5SPetr Machata &vlchange, extack); 10685be5a2dfSVlad Yasevich if (err) 10695be5a2dfSVlad Yasevich goto out; 1070f545923bSNikolay Aleksandrov 1071f545923bSNikolay Aleksandrov if (br_vlan_delete(br, old_pvid)) 1072f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, old_pvid, 0, RTM_DELVLAN); 1073f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, pvid, 0, RTM_NEWVLAN); 1074442b03c3SXin Long __set_bit(0, changed); 10755be5a2dfSVlad Yasevich } 10765be5a2dfSVlad Yasevich 10775be5a2dfSVlad Yasevich list_for_each_entry(p, &br->port_list, list) { 10785be5a2dfSVlad Yasevich /* Update default_pvid config only if we do not conflict with 10795be5a2dfSVlad Yasevich * user configuration. 10805be5a2dfSVlad Yasevich */ 1081907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 10825be5a2dfSVlad Yasevich if ((old_pvid && 1083907b1e6eSNikolay Aleksandrov !vlan_default_pvid(vg, old_pvid)) || 1084907b1e6eSNikolay Aleksandrov br_vlan_find(vg, pvid)) 10855be5a2dfSVlad Yasevich continue; 10865be5a2dfSVlad Yasevich 10875be5a2dfSVlad Yasevich err = nbp_vlan_add(p, pvid, 10885be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 1089f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 1090169327d5SPetr Machata &vlchange, extack); 10915be5a2dfSVlad Yasevich if (err) 10925be5a2dfSVlad Yasevich goto err_port; 1093f545923bSNikolay Aleksandrov if (nbp_vlan_delete(p, old_pvid)) 1094f545923bSNikolay Aleksandrov br_vlan_notify(br, p, old_pvid, 0, RTM_DELVLAN); 1095f545923bSNikolay Aleksandrov br_vlan_notify(p->br, p, pvid, 0, RTM_NEWVLAN); 1096442b03c3SXin Long __set_bit(p->port_no, changed); 10975be5a2dfSVlad Yasevich } 10985be5a2dfSVlad Yasevich 10995be5a2dfSVlad Yasevich br->default_pvid = pvid; 11005be5a2dfSVlad Yasevich 11015be5a2dfSVlad Yasevich out: 1102459479daSAndy Shevchenko bitmap_free(changed); 11035be5a2dfSVlad Yasevich return err; 11045be5a2dfSVlad Yasevich 11055be5a2dfSVlad Yasevich err_port: 11065be5a2dfSVlad Yasevich list_for_each_entry_continue_reverse(p, &br->port_list, list) { 11075be5a2dfSVlad Yasevich if (!test_bit(p->port_no, changed)) 11085be5a2dfSVlad Yasevich continue; 11095be5a2dfSVlad Yasevich 1110f545923bSNikolay Aleksandrov if (old_pvid) { 11115be5a2dfSVlad Yasevich nbp_vlan_add(p, old_pvid, 11125be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 1113f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 1114169327d5SPetr Machata &vlchange, NULL); 1115f545923bSNikolay Aleksandrov br_vlan_notify(p->br, p, old_pvid, 0, RTM_NEWVLAN); 1116f545923bSNikolay Aleksandrov } 11175be5a2dfSVlad Yasevich nbp_vlan_delete(p, pvid); 1118f545923bSNikolay Aleksandrov br_vlan_notify(br, p, pvid, 0, RTM_DELVLAN); 11195be5a2dfSVlad Yasevich } 11205be5a2dfSVlad Yasevich 11215be5a2dfSVlad Yasevich if (test_bit(0, changed)) { 1122f545923bSNikolay Aleksandrov if (old_pvid) { 11235be5a2dfSVlad Yasevich br_vlan_add(br, old_pvid, 11245be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 11252594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 1126f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, 1127169327d5SPetr Machata &vlchange, NULL); 1128f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, old_pvid, 0, RTM_NEWVLAN); 1129f545923bSNikolay Aleksandrov } 11305be5a2dfSVlad Yasevich br_vlan_delete(br, pvid); 1131f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, pvid, 0, RTM_DELVLAN); 11325be5a2dfSVlad Yasevich } 11335be5a2dfSVlad Yasevich goto out; 11345be5a2dfSVlad Yasevich } 11355be5a2dfSVlad Yasevich 11369e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 11379e781401SVladimir Oltean struct netlink_ext_ack *extack) 113896a20d9dSVlad Yasevich { 113996a20d9dSVlad Yasevich u16 pvid = val; 114096a20d9dSVlad Yasevich int err = 0; 114196a20d9dSVlad Yasevich 11425be5a2dfSVlad Yasevich if (val >= VLAN_VID_MASK) 114396a20d9dSVlad Yasevich return -EINVAL; 114496a20d9dSVlad Yasevich 114596a20d9dSVlad Yasevich if (pvid == br->default_pvid) 1146047831a9SXin Long goto out; 114796a20d9dSVlad Yasevich 114896a20d9dSVlad Yasevich /* Only allow default pvid change when filtering is disabled */ 1149ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_ENABLED)) { 115096a20d9dSVlad Yasevich pr_info_once("Please disable vlan filtering to change default_pvid\n"); 115196a20d9dSVlad Yasevich err = -EPERM; 1152047831a9SXin Long goto out; 115396a20d9dSVlad Yasevich } 11549e781401SVladimir Oltean err = __br_vlan_set_default_pvid(br, pvid, extack); 1155047831a9SXin Long out: 115696a20d9dSVlad Yasevich return err; 115796a20d9dSVlad Yasevich } 115896a20d9dSVlad Yasevich 11595be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br) 11608580e211SToshiaki Makita { 1161907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 11622594e906SNikolay Aleksandrov int ret = -ENOMEM; 11632594e906SNikolay Aleksandrov 1164907b1e6eSNikolay Aleksandrov vg = kzalloc(sizeof(*vg), GFP_KERNEL); 1165907b1e6eSNikolay Aleksandrov if (!vg) 11662594e906SNikolay Aleksandrov goto out; 1167907b1e6eSNikolay Aleksandrov ret = rhashtable_init(&vg->vlan_hash, &br_vlan_rht_params); 11682594e906SNikolay Aleksandrov if (ret) 11692594e906SNikolay Aleksandrov goto err_rhtbl; 1170efa5356bSRoopa Prabhu ret = vlan_tunnel_init(vg); 1171efa5356bSRoopa Prabhu if (ret) 1172efa5356bSRoopa Prabhu goto err_tunnel_init; 1173907b1e6eSNikolay Aleksandrov INIT_LIST_HEAD(&vg->vlan_list); 11748580e211SToshiaki Makita br->vlan_proto = htons(ETH_P_8021Q); 117596a20d9dSVlad Yasevich br->default_pvid = 1; 1176907b1e6eSNikolay Aleksandrov rcu_assign_pointer(br->vlgrp, vg); 11772594e906SNikolay Aleksandrov 11782594e906SNikolay Aleksandrov out: 11792594e906SNikolay Aleksandrov return ret; 11802594e906SNikolay Aleksandrov 1181efa5356bSRoopa Prabhu err_tunnel_init: 1182907b1e6eSNikolay Aleksandrov rhashtable_destroy(&vg->vlan_hash); 11832594e906SNikolay Aleksandrov err_rhtbl: 1184907b1e6eSNikolay Aleksandrov kfree(vg); 11852594e906SNikolay Aleksandrov 11862594e906SNikolay Aleksandrov goto out; 11872594e906SNikolay Aleksandrov } 11882594e906SNikolay Aleksandrov 1189169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *p, struct netlink_ext_ack *extack) 11902594e906SNikolay Aleksandrov { 1191404cdbf0SElad Raz struct switchdev_attr attr = { 1192404cdbf0SElad Raz .orig_dev = p->br->dev, 1193404cdbf0SElad Raz .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, 1194404cdbf0SElad Raz .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 1195ae75767eSNikolay Aleksandrov .u.vlan_filtering = br_opt_get(p->br, BROPT_VLAN_ENABLED), 1196404cdbf0SElad Raz }; 1197263344e6SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 11982594e906SNikolay Aleksandrov int ret = -ENOMEM; 11992594e906SNikolay Aleksandrov 1200263344e6SNikolay Aleksandrov vg = kzalloc(sizeof(struct net_bridge_vlan_group), GFP_KERNEL); 1201263344e6SNikolay Aleksandrov if (!vg) 12022594e906SNikolay Aleksandrov goto out; 12032594e906SNikolay Aleksandrov 1204dcbdf135SVladimir Oltean ret = switchdev_port_attr_set(p->dev, &attr, extack); 1205404cdbf0SElad Raz if (ret && ret != -EOPNOTSUPP) 1206404cdbf0SElad Raz goto err_vlan_enabled; 1207404cdbf0SElad Raz 1208263344e6SNikolay Aleksandrov ret = rhashtable_init(&vg->vlan_hash, &br_vlan_rht_params); 12092594e906SNikolay Aleksandrov if (ret) 12102594e906SNikolay Aleksandrov goto err_rhtbl; 1211efa5356bSRoopa Prabhu ret = vlan_tunnel_init(vg); 1212efa5356bSRoopa Prabhu if (ret) 1213efa5356bSRoopa Prabhu goto err_tunnel_init; 1214263344e6SNikolay Aleksandrov INIT_LIST_HEAD(&vg->vlan_list); 1215907b1e6eSNikolay Aleksandrov rcu_assign_pointer(p->vlgrp, vg); 12162594e906SNikolay Aleksandrov if (p->br->default_pvid) { 1217f418af63SNikolay Aleksandrov bool changed; 1218f418af63SNikolay Aleksandrov 12192594e906SNikolay Aleksandrov ret = nbp_vlan_add(p, p->br->default_pvid, 12202594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_PVID | 1221f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 1222169327d5SPetr Machata &changed, extack); 12232594e906SNikolay Aleksandrov if (ret) 12242594e906SNikolay Aleksandrov goto err_vlan_add; 1225f545923bSNikolay Aleksandrov br_vlan_notify(p->br, p, p->br->default_pvid, 0, RTM_NEWVLAN); 12262594e906SNikolay Aleksandrov } 12272594e906SNikolay Aleksandrov out: 12282594e906SNikolay Aleksandrov return ret; 12292594e906SNikolay Aleksandrov 12302594e906SNikolay Aleksandrov err_vlan_add: 123107bc588fSIdo Schimmel RCU_INIT_POINTER(p->vlgrp, NULL); 123207bc588fSIdo Schimmel synchronize_rcu(); 1233efa5356bSRoopa Prabhu vlan_tunnel_deinit(vg); 1234efa5356bSRoopa Prabhu err_tunnel_init: 1235efa5356bSRoopa Prabhu rhashtable_destroy(&vg->vlan_hash); 12362594e906SNikolay Aleksandrov err_rhtbl: 1237df2c4334SYotam Gigi err_vlan_enabled: 1238263344e6SNikolay Aleksandrov kfree(vg); 12392594e906SNikolay Aleksandrov 12402594e906SNikolay Aleksandrov goto out; 12418580e211SToshiaki Makita } 12428580e211SToshiaki Makita 12438adff41cSToshiaki Makita /* Must be protected by RTNL. 12448adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 1245f418af63SNikolay Aleksandrov * changed must be true only if the vlan was created or updated 12468adff41cSToshiaki Makita */ 1247f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1248169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1249243a2e63SVlad Yasevich { 12502594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 12512594e906SNikolay Aleksandrov int ret; 1252243a2e63SVlad Yasevich 1253243a2e63SVlad Yasevich ASSERT_RTNL(); 1254243a2e63SVlad Yasevich 1255f418af63SNikolay Aleksandrov *changed = false; 1256907b1e6eSNikolay Aleksandrov vlan = br_vlan_find(nbp_vlan_group(port), vid); 12572594e906SNikolay Aleksandrov if (vlan) { 12587fbac984SIdo Schimmel /* Pass the flags to the hardware bridge */ 1259169327d5SPetr Machata ret = br_switchdev_port_vlan_add(port->dev, vid, flags, extack); 12607fbac984SIdo Schimmel if (ret && ret != -EOPNOTSUPP) 12617fbac984SIdo Schimmel return ret; 1262f418af63SNikolay Aleksandrov *changed = __vlan_add_flags(vlan, flags); 1263f418af63SNikolay Aleksandrov 12642594e906SNikolay Aleksandrov return 0; 1265243a2e63SVlad Yasevich } 1266243a2e63SVlad Yasevich 12672594e906SNikolay Aleksandrov vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); 12682594e906SNikolay Aleksandrov if (!vlan) 12692594e906SNikolay Aleksandrov return -ENOMEM; 1270243a2e63SVlad Yasevich 12712594e906SNikolay Aleksandrov vlan->vid = vid; 12722594e906SNikolay Aleksandrov vlan->port = port; 1273169327d5SPetr Machata ret = __vlan_add(vlan, flags, extack); 12742594e906SNikolay Aleksandrov if (ret) 12752594e906SNikolay Aleksandrov kfree(vlan); 1276f418af63SNikolay Aleksandrov else 1277f418af63SNikolay Aleksandrov *changed = true; 1278243a2e63SVlad Yasevich 12792594e906SNikolay Aleksandrov return ret; 1280243a2e63SVlad Yasevich } 1281243a2e63SVlad Yasevich 12828adff41cSToshiaki Makita /* Must be protected by RTNL. 12838adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 12848adff41cSToshiaki Makita */ 1285243a2e63SVlad Yasevich int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1286243a2e63SVlad Yasevich { 12872594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 1288243a2e63SVlad Yasevich 1289243a2e63SVlad Yasevich ASSERT_RTNL(); 1290243a2e63SVlad Yasevich 1291907b1e6eSNikolay Aleksandrov v = br_vlan_find(nbp_vlan_group(port), vid); 12922594e906SNikolay Aleksandrov if (!v) 12932594e906SNikolay Aleksandrov return -ENOENT; 1294424bb9c9SToshiaki Makita br_fdb_find_delete_local(port->br, port, port->dev->dev_addr, vid); 12951ea2d020SNikolay Aleksandrov br_fdb_delete_by_port(port->br, port, vid, 0); 1296bc9a25d2SVlad Yasevich 12972594e906SNikolay Aleksandrov return __vlan_del(v); 1298243a2e63SVlad Yasevich } 1299243a2e63SVlad Yasevich 1300243a2e63SVlad Yasevich void nbp_vlan_flush(struct net_bridge_port *port) 1301243a2e63SVlad Yasevich { 1302f409d0edSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 1303f409d0edSNikolay Aleksandrov 1304243a2e63SVlad Yasevich ASSERT_RTNL(); 1305243a2e63SVlad Yasevich 1306f409d0edSNikolay Aleksandrov vg = nbp_vlan_group(port); 1307f545923bSNikolay Aleksandrov __vlan_flush(port->br, port, vg); 1308f409d0edSNikolay Aleksandrov RCU_INIT_POINTER(port->vlgrp, NULL); 1309f409d0edSNikolay Aleksandrov synchronize_rcu(); 1310f409d0edSNikolay Aleksandrov __vlan_group_free(vg); 13115be5a2dfSVlad Yasevich } 1312a60c0903SNikolay Aleksandrov 1313a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1314281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1315a60c0903SNikolay Aleksandrov { 1316a60c0903SNikolay Aleksandrov int i; 1317a60c0903SNikolay Aleksandrov 1318a60c0903SNikolay Aleksandrov memset(stats, 0, sizeof(*stats)); 1319a60c0903SNikolay Aleksandrov for_each_possible_cpu(i) { 1320a60c0903SNikolay Aleksandrov u64 rxpackets, rxbytes, txpackets, txbytes; 1321281cc284SHeiner Kallweit struct pcpu_sw_netstats *cpu_stats; 1322a60c0903SNikolay Aleksandrov unsigned int start; 1323a60c0903SNikolay Aleksandrov 1324a60c0903SNikolay Aleksandrov cpu_stats = per_cpu_ptr(v->stats, i); 1325a60c0903SNikolay Aleksandrov do { 1326a60c0903SNikolay Aleksandrov start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); 1327a60c0903SNikolay Aleksandrov rxpackets = cpu_stats->rx_packets; 1328a60c0903SNikolay Aleksandrov rxbytes = cpu_stats->rx_bytes; 1329a60c0903SNikolay Aleksandrov txbytes = cpu_stats->tx_bytes; 1330a60c0903SNikolay Aleksandrov txpackets = cpu_stats->tx_packets; 1331a60c0903SNikolay Aleksandrov } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); 1332a60c0903SNikolay Aleksandrov 1333a60c0903SNikolay Aleksandrov stats->rx_packets += rxpackets; 1334a60c0903SNikolay Aleksandrov stats->rx_bytes += rxbytes; 1335a60c0903SNikolay Aleksandrov stats->tx_bytes += txbytes; 1336a60c0903SNikolay Aleksandrov stats->tx_packets += txpackets; 1337a60c0903SNikolay Aleksandrov } 1338a60c0903SNikolay Aleksandrov } 13394d4fd361SPetr Machata 134099f62a74SVladimir Oltean int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid) 13414d4fd361SPetr Machata { 13424d4fd361SPetr Machata struct net_bridge_vlan_group *vg; 134399f62a74SVladimir Oltean struct net_bridge_port *p; 13444d4fd361SPetr Machata 134599f62a74SVladimir Oltean ASSERT_RTNL(); 134699f62a74SVladimir Oltean p = br_port_get_check_rtnl(dev); 13475a6db04cSIdo Schimmel if (p) 13485a6db04cSIdo Schimmel vg = nbp_vlan_group(p); 13495a6db04cSIdo Schimmel else if (netif_is_bridge_master(dev)) 13504d4fd361SPetr Machata vg = br_vlan_group(netdev_priv(dev)); 13514d4fd361SPetr Machata else 13524d4fd361SPetr Machata return -EINVAL; 13534d4fd361SPetr Machata 13544d4fd361SPetr Machata *p_pvid = br_get_pvid(vg); 13554d4fd361SPetr Machata return 0; 13564d4fd361SPetr Machata } 13574d4fd361SPetr Machata EXPORT_SYMBOL_GPL(br_vlan_get_pvid); 13584d4fd361SPetr Machata 13597582f5b7SPablo Neira Ayuso int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid) 13607582f5b7SPablo Neira Ayuso { 136199f62a74SVladimir Oltean struct net_bridge_vlan_group *vg; 136299f62a74SVladimir Oltean struct net_bridge_port *p; 136399f62a74SVladimir Oltean 136499f62a74SVladimir Oltean p = br_port_get_check_rcu(dev); 136599f62a74SVladimir Oltean if (p) 136699f62a74SVladimir Oltean vg = nbp_vlan_group_rcu(p); 136799f62a74SVladimir Oltean else if (netif_is_bridge_master(dev)) 136899f62a74SVladimir Oltean vg = br_vlan_group_rcu(netdev_priv(dev)); 136999f62a74SVladimir Oltean else 137099f62a74SVladimir Oltean return -EINVAL; 137199f62a74SVladimir Oltean 137299f62a74SVladimir Oltean *p_pvid = br_get_pvid(vg); 137399f62a74SVladimir Oltean return 0; 13747582f5b7SPablo Neira Ayuso } 13757582f5b7SPablo Neira Ayuso EXPORT_SYMBOL_GPL(br_vlan_get_pvid_rcu); 13767582f5b7SPablo Neira Ayuso 1377bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1378bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1379bcf2766bSFelix Fietkau struct net_device_path *path) 1380bcf2766bSFelix Fietkau { 1381bcf2766bSFelix Fietkau struct net_bridge_vlan_group *vg; 1382bcf2766bSFelix Fietkau int idx = ctx->num_vlans - 1; 1383bcf2766bSFelix Fietkau u16 vid; 1384bcf2766bSFelix Fietkau 1385bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_KEEP; 1386bcf2766bSFelix Fietkau 1387bcf2766bSFelix Fietkau if (!br_opt_get(br, BROPT_VLAN_ENABLED)) 1388bcf2766bSFelix Fietkau return; 1389bcf2766bSFelix Fietkau 1390bcf2766bSFelix Fietkau vg = br_vlan_group(br); 1391bcf2766bSFelix Fietkau 1392bcf2766bSFelix Fietkau if (idx >= 0 && 1393bcf2766bSFelix Fietkau ctx->vlan[idx].proto == br->vlan_proto) { 1394bcf2766bSFelix Fietkau vid = ctx->vlan[idx].id; 1395bcf2766bSFelix Fietkau } else { 1396bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_TAG; 1397bcf2766bSFelix Fietkau vid = br_get_pvid(vg); 1398bcf2766bSFelix Fietkau } 1399bcf2766bSFelix Fietkau 1400bcf2766bSFelix Fietkau path->bridge.vlan_id = vid; 1401bcf2766bSFelix Fietkau path->bridge.vlan_proto = br->vlan_proto; 1402bcf2766bSFelix Fietkau } 1403bcf2766bSFelix Fietkau 1404bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1405bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1406bcf2766bSFelix Fietkau struct net_device_path *path) 1407bcf2766bSFelix Fietkau { 1408bcf2766bSFelix Fietkau struct net_bridge_vlan_group *vg; 1409bcf2766bSFelix Fietkau struct net_bridge_vlan *v; 1410bcf2766bSFelix Fietkau 1411bcf2766bSFelix Fietkau if (!br_opt_get(br, BROPT_VLAN_ENABLED)) 1412bcf2766bSFelix Fietkau return 0; 1413bcf2766bSFelix Fietkau 1414bcf2766bSFelix Fietkau vg = nbp_vlan_group_rcu(dst); 1415bcf2766bSFelix Fietkau v = br_vlan_find(vg, path->bridge.vlan_id); 1416bcf2766bSFelix Fietkau if (!v || !br_vlan_should_use(v)) 1417bcf2766bSFelix Fietkau return -EINVAL; 1418bcf2766bSFelix Fietkau 1419bcf2766bSFelix Fietkau if (!(v->flags & BRIDGE_VLAN_INFO_UNTAGGED)) 1420bcf2766bSFelix Fietkau return 0; 1421bcf2766bSFelix Fietkau 1422bcf2766bSFelix Fietkau if (path->bridge.vlan_mode == DEV_PATH_BR_VLAN_TAG) 1423bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_KEEP; 142426267bf9SFelix Fietkau else if (v->priv_flags & BR_VLFLAG_ADDED_BY_SWITCHDEV) 142526267bf9SFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_UNTAG_HW; 1426bcf2766bSFelix Fietkau else 1427bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_UNTAG; 1428bcf2766bSFelix Fietkau 1429bcf2766bSFelix Fietkau return 0; 1430bcf2766bSFelix Fietkau } 1431bcf2766bSFelix Fietkau 14324d4fd361SPetr Machata int br_vlan_get_info(const struct net_device *dev, u16 vid, 14334d4fd361SPetr Machata struct bridge_vlan_info *p_vinfo) 14344d4fd361SPetr Machata { 14354d4fd361SPetr Machata struct net_bridge_vlan_group *vg; 14364d4fd361SPetr Machata struct net_bridge_vlan *v; 14374d4fd361SPetr Machata struct net_bridge_port *p; 14384d4fd361SPetr Machata 14394d4fd361SPetr Machata ASSERT_RTNL(); 14404d4fd361SPetr Machata p = br_port_get_check_rtnl(dev); 14414d4fd361SPetr Machata if (p) 14424d4fd361SPetr Machata vg = nbp_vlan_group(p); 14432b18d79eSPetr Machata else if (netif_is_bridge_master(dev)) 14442b18d79eSPetr Machata vg = br_vlan_group(netdev_priv(dev)); 14454d4fd361SPetr Machata else 14464d4fd361SPetr Machata return -EINVAL; 14474d4fd361SPetr Machata 14484d4fd361SPetr Machata v = br_vlan_find(vg, vid); 14494d4fd361SPetr Machata if (!v) 14504d4fd361SPetr Machata return -ENOENT; 14514d4fd361SPetr Machata 14524d4fd361SPetr Machata p_vinfo->vid = vid; 14534d4fd361SPetr Machata p_vinfo->flags = v->flags; 1454f40d9b20SVladimir Oltean if (vid == br_get_pvid(vg)) 1455f40d9b20SVladimir Oltean p_vinfo->flags |= BRIDGE_VLAN_INFO_PVID; 14564d4fd361SPetr Machata return 0; 14574d4fd361SPetr Machata } 14584d4fd361SPetr Machata EXPORT_SYMBOL_GPL(br_vlan_get_info); 14599c0ec2e7SMike Manning 1460ee80dd2eSVladimir Oltean int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid, 1461ee80dd2eSVladimir Oltean struct bridge_vlan_info *p_vinfo) 1462ee80dd2eSVladimir Oltean { 1463ee80dd2eSVladimir Oltean struct net_bridge_vlan_group *vg; 1464ee80dd2eSVladimir Oltean struct net_bridge_vlan *v; 1465ee80dd2eSVladimir Oltean struct net_bridge_port *p; 1466ee80dd2eSVladimir Oltean 1467ee80dd2eSVladimir Oltean p = br_port_get_check_rcu(dev); 1468ee80dd2eSVladimir Oltean if (p) 1469ee80dd2eSVladimir Oltean vg = nbp_vlan_group_rcu(p); 1470ee80dd2eSVladimir Oltean else if (netif_is_bridge_master(dev)) 1471ee80dd2eSVladimir Oltean vg = br_vlan_group_rcu(netdev_priv(dev)); 1472ee80dd2eSVladimir Oltean else 1473ee80dd2eSVladimir Oltean return -EINVAL; 1474ee80dd2eSVladimir Oltean 1475ee80dd2eSVladimir Oltean v = br_vlan_find(vg, vid); 1476ee80dd2eSVladimir Oltean if (!v) 1477ee80dd2eSVladimir Oltean return -ENOENT; 1478ee80dd2eSVladimir Oltean 1479ee80dd2eSVladimir Oltean p_vinfo->vid = vid; 1480ee80dd2eSVladimir Oltean p_vinfo->flags = v->flags; 1481ee80dd2eSVladimir Oltean if (vid == br_get_pvid(vg)) 1482ee80dd2eSVladimir Oltean p_vinfo->flags |= BRIDGE_VLAN_INFO_PVID; 1483ee80dd2eSVladimir Oltean return 0; 1484ee80dd2eSVladimir Oltean } 1485ee80dd2eSVladimir Oltean EXPORT_SYMBOL_GPL(br_vlan_get_info_rcu); 1486ee80dd2eSVladimir Oltean 14879c0ec2e7SMike Manning static int br_vlan_is_bind_vlan_dev(const struct net_device *dev) 14889c0ec2e7SMike Manning { 14899c0ec2e7SMike Manning return is_vlan_dev(dev) && 14909c0ec2e7SMike Manning !!(vlan_dev_priv(dev)->flags & VLAN_FLAG_BRIDGE_BINDING); 14919c0ec2e7SMike Manning } 14929c0ec2e7SMike Manning 14939c0ec2e7SMike Manning static int br_vlan_is_bind_vlan_dev_fn(struct net_device *dev, 1494eff74233STaehee Yoo __always_unused struct netdev_nested_priv *priv) 14959c0ec2e7SMike Manning { 14969c0ec2e7SMike Manning return br_vlan_is_bind_vlan_dev(dev); 14979c0ec2e7SMike Manning } 14989c0ec2e7SMike Manning 14999c0ec2e7SMike Manning static bool br_vlan_has_upper_bind_vlan_dev(struct net_device *dev) 15009c0ec2e7SMike Manning { 15019c0ec2e7SMike Manning int found; 15029c0ec2e7SMike Manning 15039c0ec2e7SMike Manning rcu_read_lock(); 15049c0ec2e7SMike Manning found = netdev_walk_all_upper_dev_rcu(dev, br_vlan_is_bind_vlan_dev_fn, 15059c0ec2e7SMike Manning NULL); 15069c0ec2e7SMike Manning rcu_read_unlock(); 15079c0ec2e7SMike Manning 15089c0ec2e7SMike Manning return !!found; 15099c0ec2e7SMike Manning } 15109c0ec2e7SMike Manning 15119c0ec2e7SMike Manning struct br_vlan_bind_walk_data { 15129c0ec2e7SMike Manning u16 vid; 15139c0ec2e7SMike Manning struct net_device *result; 15149c0ec2e7SMike Manning }; 15159c0ec2e7SMike Manning 15169c0ec2e7SMike Manning static int br_vlan_match_bind_vlan_dev_fn(struct net_device *dev, 1517eff74233STaehee Yoo struct netdev_nested_priv *priv) 15189c0ec2e7SMike Manning { 1519eff74233STaehee Yoo struct br_vlan_bind_walk_data *data = priv->data; 15209c0ec2e7SMike Manning int found = 0; 15219c0ec2e7SMike Manning 15229c0ec2e7SMike Manning if (br_vlan_is_bind_vlan_dev(dev) && 15239c0ec2e7SMike Manning vlan_dev_priv(dev)->vlan_id == data->vid) { 15249c0ec2e7SMike Manning data->result = dev; 15259c0ec2e7SMike Manning found = 1; 15269c0ec2e7SMike Manning } 15279c0ec2e7SMike Manning 15289c0ec2e7SMike Manning return found; 15299c0ec2e7SMike Manning } 15309c0ec2e7SMike Manning 15319c0ec2e7SMike Manning static struct net_device * 15329c0ec2e7SMike Manning br_vlan_get_upper_bind_vlan_dev(struct net_device *dev, u16 vid) 15339c0ec2e7SMike Manning { 15349c0ec2e7SMike Manning struct br_vlan_bind_walk_data data = { 15359c0ec2e7SMike Manning .vid = vid, 15369c0ec2e7SMike Manning }; 1537eff74233STaehee Yoo struct netdev_nested_priv priv = { 1538eff74233STaehee Yoo .data = (void *)&data, 1539eff74233STaehee Yoo }; 15409c0ec2e7SMike Manning 15419c0ec2e7SMike Manning rcu_read_lock(); 15429c0ec2e7SMike Manning netdev_walk_all_upper_dev_rcu(dev, br_vlan_match_bind_vlan_dev_fn, 1543eff74233STaehee Yoo &priv); 15449c0ec2e7SMike Manning rcu_read_unlock(); 15459c0ec2e7SMike Manning 15469c0ec2e7SMike Manning return data.result; 15479c0ec2e7SMike Manning } 15489c0ec2e7SMike Manning 15499c0ec2e7SMike Manning static bool br_vlan_is_dev_up(const struct net_device *dev) 15509c0ec2e7SMike Manning { 15519c0ec2e7SMike Manning return !!(dev->flags & IFF_UP) && netif_oper_up(dev); 15529c0ec2e7SMike Manning } 15539c0ec2e7SMike Manning 15549c0ec2e7SMike Manning static void br_vlan_set_vlan_dev_state(const struct net_bridge *br, 15559c0ec2e7SMike Manning struct net_device *vlan_dev) 15569c0ec2e7SMike Manning { 15579c0ec2e7SMike Manning u16 vid = vlan_dev_priv(vlan_dev)->vlan_id; 15589c0ec2e7SMike Manning struct net_bridge_vlan_group *vg; 15599c0ec2e7SMike Manning struct net_bridge_port *p; 15609c0ec2e7SMike Manning bool has_carrier = false; 15619c0ec2e7SMike Manning 15628e1acd4fSMike Manning if (!netif_carrier_ok(br->dev)) { 15638e1acd4fSMike Manning netif_carrier_off(vlan_dev); 15648e1acd4fSMike Manning return; 15658e1acd4fSMike Manning } 15668e1acd4fSMike Manning 15679c0ec2e7SMike Manning list_for_each_entry(p, &br->port_list, list) { 15689c0ec2e7SMike Manning vg = nbp_vlan_group(p); 15699c0ec2e7SMike Manning if (br_vlan_find(vg, vid) && br_vlan_is_dev_up(p->dev)) { 15709c0ec2e7SMike Manning has_carrier = true; 15719c0ec2e7SMike Manning break; 15729c0ec2e7SMike Manning } 15739c0ec2e7SMike Manning } 15749c0ec2e7SMike Manning 15759c0ec2e7SMike Manning if (has_carrier) 15769c0ec2e7SMike Manning netif_carrier_on(vlan_dev); 15779c0ec2e7SMike Manning else 15789c0ec2e7SMike Manning netif_carrier_off(vlan_dev); 15799c0ec2e7SMike Manning } 15809c0ec2e7SMike Manning 15819c0ec2e7SMike Manning static void br_vlan_set_all_vlan_dev_state(struct net_bridge_port *p) 15829c0ec2e7SMike Manning { 15839c0ec2e7SMike Manning struct net_bridge_vlan_group *vg = nbp_vlan_group(p); 15849c0ec2e7SMike Manning struct net_bridge_vlan *vlan; 15859c0ec2e7SMike Manning struct net_device *vlan_dev; 15869c0ec2e7SMike Manning 15879c0ec2e7SMike Manning list_for_each_entry(vlan, &vg->vlan_list, vlist) { 15889c0ec2e7SMike Manning vlan_dev = br_vlan_get_upper_bind_vlan_dev(p->br->dev, 15899c0ec2e7SMike Manning vlan->vid); 15909c0ec2e7SMike Manning if (vlan_dev) { 15918e1acd4fSMike Manning if (br_vlan_is_dev_up(p->dev)) { 15928e1acd4fSMike Manning if (netif_carrier_ok(p->br->dev)) 15939c0ec2e7SMike Manning netif_carrier_on(vlan_dev); 15948e1acd4fSMike Manning } else { 15959c0ec2e7SMike Manning br_vlan_set_vlan_dev_state(p->br, vlan_dev); 15969c0ec2e7SMike Manning } 15979c0ec2e7SMike Manning } 15989c0ec2e7SMike Manning } 15998e1acd4fSMike Manning } 16009c0ec2e7SMike Manning 16019c0ec2e7SMike Manning static void br_vlan_upper_change(struct net_device *dev, 16029c0ec2e7SMike Manning struct net_device *upper_dev, 16039c0ec2e7SMike Manning bool linking) 16049c0ec2e7SMike Manning { 16059c0ec2e7SMike Manning struct net_bridge *br = netdev_priv(dev); 16069c0ec2e7SMike Manning 16079c0ec2e7SMike Manning if (!br_vlan_is_bind_vlan_dev(upper_dev)) 16089c0ec2e7SMike Manning return; 16099c0ec2e7SMike Manning 16109c0ec2e7SMike Manning if (linking) { 16119c0ec2e7SMike Manning br_vlan_set_vlan_dev_state(br, upper_dev); 16129c0ec2e7SMike Manning br_opt_toggle(br, BROPT_VLAN_BRIDGE_BINDING, true); 16139c0ec2e7SMike Manning } else { 16149c0ec2e7SMike Manning br_opt_toggle(br, BROPT_VLAN_BRIDGE_BINDING, 16159c0ec2e7SMike Manning br_vlan_has_upper_bind_vlan_dev(dev)); 16169c0ec2e7SMike Manning } 16179c0ec2e7SMike Manning } 16189c0ec2e7SMike Manning 16198e1acd4fSMike Manning struct br_vlan_link_state_walk_data { 16208e1acd4fSMike Manning struct net_bridge *br; 16218e1acd4fSMike Manning }; 16228e1acd4fSMike Manning 16238e1acd4fSMike Manning static int br_vlan_link_state_change_fn(struct net_device *vlan_dev, 1624eff74233STaehee Yoo struct netdev_nested_priv *priv) 16258e1acd4fSMike Manning { 1626eff74233STaehee Yoo struct br_vlan_link_state_walk_data *data = priv->data; 16278e1acd4fSMike Manning 16288e1acd4fSMike Manning if (br_vlan_is_bind_vlan_dev(vlan_dev)) 16298e1acd4fSMike Manning br_vlan_set_vlan_dev_state(data->br, vlan_dev); 16308e1acd4fSMike Manning 16318e1acd4fSMike Manning return 0; 16328e1acd4fSMike Manning } 16338e1acd4fSMike Manning 16348e1acd4fSMike Manning static void br_vlan_link_state_change(struct net_device *dev, 16358e1acd4fSMike Manning struct net_bridge *br) 16368e1acd4fSMike Manning { 16378e1acd4fSMike Manning struct br_vlan_link_state_walk_data data = { 16388e1acd4fSMike Manning .br = br 16398e1acd4fSMike Manning }; 1640eff74233STaehee Yoo struct netdev_nested_priv priv = { 1641eff74233STaehee Yoo .data = (void *)&data, 1642eff74233STaehee Yoo }; 16438e1acd4fSMike Manning 16448e1acd4fSMike Manning rcu_read_lock(); 16458e1acd4fSMike Manning netdev_walk_all_upper_dev_rcu(dev, br_vlan_link_state_change_fn, 1646eff74233STaehee Yoo &priv); 16478e1acd4fSMike Manning rcu_read_unlock(); 16488e1acd4fSMike Manning } 16498e1acd4fSMike Manning 16509c0ec2e7SMike Manning /* Must be protected by RTNL. */ 165180900acdSMike Manning static void nbp_vlan_set_vlan_dev_state(struct net_bridge_port *p, u16 vid) 165280900acdSMike Manning { 165380900acdSMike Manning struct net_device *vlan_dev; 165480900acdSMike Manning 165580900acdSMike Manning if (!br_opt_get(p->br, BROPT_VLAN_BRIDGE_BINDING)) 165680900acdSMike Manning return; 165780900acdSMike Manning 165880900acdSMike Manning vlan_dev = br_vlan_get_upper_bind_vlan_dev(p->br->dev, vid); 165980900acdSMike Manning if (vlan_dev) 166080900acdSMike Manning br_vlan_set_vlan_dev_state(p->br, vlan_dev); 166180900acdSMike Manning } 166280900acdSMike Manning 166380900acdSMike Manning /* Must be protected by RTNL. */ 1664091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, void *ptr) 16659c0ec2e7SMike Manning { 16669c0ec2e7SMike Manning struct netdev_notifier_changeupper_info *info; 1667091adf9bSNikolay Aleksandrov struct net_bridge *br = netdev_priv(dev); 1668f545923bSNikolay Aleksandrov int vlcmd = 0, ret = 0; 1669f545923bSNikolay Aleksandrov bool changed = false; 16709c0ec2e7SMike Manning 16719c0ec2e7SMike Manning switch (event) { 1672091adf9bSNikolay Aleksandrov case NETDEV_REGISTER: 1673091adf9bSNikolay Aleksandrov ret = br_vlan_add(br, br->default_pvid, 1674091adf9bSNikolay Aleksandrov BRIDGE_VLAN_INFO_PVID | 1675091adf9bSNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 1676091adf9bSNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, &changed, NULL); 1677f545923bSNikolay Aleksandrov vlcmd = RTM_NEWVLAN; 1678091adf9bSNikolay Aleksandrov break; 1679091adf9bSNikolay Aleksandrov case NETDEV_UNREGISTER: 1680f545923bSNikolay Aleksandrov changed = !br_vlan_delete(br, br->default_pvid); 1681f545923bSNikolay Aleksandrov vlcmd = RTM_DELVLAN; 1682091adf9bSNikolay Aleksandrov break; 16839c0ec2e7SMike Manning case NETDEV_CHANGEUPPER: 16849c0ec2e7SMike Manning info = ptr; 16859c0ec2e7SMike Manning br_vlan_upper_change(dev, info->upper_dev, info->linking); 16869c0ec2e7SMike Manning break; 16878e1acd4fSMike Manning 16888e1acd4fSMike Manning case NETDEV_CHANGE: 16898e1acd4fSMike Manning case NETDEV_UP: 16908e1acd4fSMike Manning if (!br_opt_get(br, BROPT_VLAN_BRIDGE_BINDING)) 1691091adf9bSNikolay Aleksandrov break; 16928e1acd4fSMike Manning br_vlan_link_state_change(dev, br); 16938e1acd4fSMike Manning break; 16949c0ec2e7SMike Manning } 1695f545923bSNikolay Aleksandrov if (changed) 1696f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, br->default_pvid, 0, vlcmd); 1697091adf9bSNikolay Aleksandrov 1698091adf9bSNikolay Aleksandrov return ret; 16999c0ec2e7SMike Manning } 17009c0ec2e7SMike Manning 17019c0ec2e7SMike Manning /* Must be protected by RTNL. */ 17029c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event) 17039c0ec2e7SMike Manning { 17049c0ec2e7SMike Manning if (!br_opt_get(p->br, BROPT_VLAN_BRIDGE_BINDING)) 17059c0ec2e7SMike Manning return; 17069c0ec2e7SMike Manning 17079c0ec2e7SMike Manning switch (event) { 17089c0ec2e7SMike Manning case NETDEV_CHANGE: 17099c0ec2e7SMike Manning case NETDEV_DOWN: 17109c0ec2e7SMike Manning case NETDEV_UP: 17119c0ec2e7SMike Manning br_vlan_set_all_vlan_dev_state(p); 17129c0ec2e7SMike Manning break; 17139c0ec2e7SMike Manning } 17149c0ec2e7SMike Manning } 17158dcea187SNikolay Aleksandrov 171656d09976SNikolay Aleksandrov static bool br_vlan_stats_fill(struct sk_buff *skb, 171756d09976SNikolay Aleksandrov const struct net_bridge_vlan *v) 171856d09976SNikolay Aleksandrov { 1719281cc284SHeiner Kallweit struct pcpu_sw_netstats stats; 172056d09976SNikolay Aleksandrov struct nlattr *nest; 172156d09976SNikolay Aleksandrov 172256d09976SNikolay Aleksandrov nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY_STATS); 172356d09976SNikolay Aleksandrov if (!nest) 172456d09976SNikolay Aleksandrov return false; 172556d09976SNikolay Aleksandrov 172656d09976SNikolay Aleksandrov br_vlan_get_stats(v, &stats); 172756d09976SNikolay Aleksandrov if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_RX_BYTES, stats.rx_bytes, 172856d09976SNikolay Aleksandrov BRIDGE_VLANDB_STATS_PAD) || 172956d09976SNikolay Aleksandrov nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_RX_PACKETS, 173056d09976SNikolay Aleksandrov stats.rx_packets, BRIDGE_VLANDB_STATS_PAD) || 173156d09976SNikolay Aleksandrov nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_TX_BYTES, stats.tx_bytes, 173256d09976SNikolay Aleksandrov BRIDGE_VLANDB_STATS_PAD) || 173356d09976SNikolay Aleksandrov nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_TX_PACKETS, 173456d09976SNikolay Aleksandrov stats.tx_packets, BRIDGE_VLANDB_STATS_PAD)) 173556d09976SNikolay Aleksandrov goto out_err; 173656d09976SNikolay Aleksandrov 173756d09976SNikolay Aleksandrov nla_nest_end(skb, nest); 173856d09976SNikolay Aleksandrov 173956d09976SNikolay Aleksandrov return true; 174056d09976SNikolay Aleksandrov 174156d09976SNikolay Aleksandrov out_err: 174256d09976SNikolay Aleksandrov nla_nest_cancel(skb, nest); 174356d09976SNikolay Aleksandrov return false; 174456d09976SNikolay Aleksandrov } 174556d09976SNikolay Aleksandrov 17467a53e718SNikolay Aleksandrov /* v_opts is used to dump the options which must be equal in the whole range */ 17470ab55879SNikolay Aleksandrov static bool br_vlan_fill_vids(struct sk_buff *skb, u16 vid, u16 vid_range, 17487a53e718SNikolay Aleksandrov const struct net_bridge_vlan *v_opts, 174956d09976SNikolay Aleksandrov u16 flags, 175056d09976SNikolay Aleksandrov bool dump_stats) 17518dcea187SNikolay Aleksandrov { 17528dcea187SNikolay Aleksandrov struct bridge_vlan_info info; 17538dcea187SNikolay Aleksandrov struct nlattr *nest; 17548dcea187SNikolay Aleksandrov 17558dcea187SNikolay Aleksandrov nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY); 17568dcea187SNikolay Aleksandrov if (!nest) 17578dcea187SNikolay Aleksandrov return false; 17588dcea187SNikolay Aleksandrov 17598dcea187SNikolay Aleksandrov memset(&info, 0, sizeof(info)); 17608dcea187SNikolay Aleksandrov info.vid = vid; 17618dcea187SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_UNTAGGED) 17628dcea187SNikolay Aleksandrov info.flags |= BRIDGE_VLAN_INFO_UNTAGGED; 17638dcea187SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_PVID) 17648dcea187SNikolay Aleksandrov info.flags |= BRIDGE_VLAN_INFO_PVID; 17658dcea187SNikolay Aleksandrov 17668dcea187SNikolay Aleksandrov if (nla_put(skb, BRIDGE_VLANDB_ENTRY_INFO, sizeof(info), &info)) 17678dcea187SNikolay Aleksandrov goto out_err; 17688dcea187SNikolay Aleksandrov 17690ab55879SNikolay Aleksandrov if (vid_range && vid < vid_range && 17700ab55879SNikolay Aleksandrov !(flags & BRIDGE_VLAN_INFO_PVID) && 17710ab55879SNikolay Aleksandrov nla_put_u16(skb, BRIDGE_VLANDB_ENTRY_RANGE, vid_range)) 17720ab55879SNikolay Aleksandrov goto out_err; 17730ab55879SNikolay Aleksandrov 177456d09976SNikolay Aleksandrov if (v_opts) { 177556d09976SNikolay Aleksandrov if (!br_vlan_opts_fill(skb, v_opts)) 17767a53e718SNikolay Aleksandrov goto out_err; 17777a53e718SNikolay Aleksandrov 177856d09976SNikolay Aleksandrov if (dump_stats && !br_vlan_stats_fill(skb, v_opts)) 177956d09976SNikolay Aleksandrov goto out_err; 178056d09976SNikolay Aleksandrov } 178156d09976SNikolay Aleksandrov 17828dcea187SNikolay Aleksandrov nla_nest_end(skb, nest); 17838dcea187SNikolay Aleksandrov 17848dcea187SNikolay Aleksandrov return true; 17858dcea187SNikolay Aleksandrov 17868dcea187SNikolay Aleksandrov out_err: 17878dcea187SNikolay Aleksandrov nla_nest_cancel(skb, nest); 17888dcea187SNikolay Aleksandrov return false; 17898dcea187SNikolay Aleksandrov } 17908dcea187SNikolay Aleksandrov 1791cf5bddb9SNikolay Aleksandrov static size_t rtnl_vlan_nlmsg_size(void) 1792cf5bddb9SNikolay Aleksandrov { 1793cf5bddb9SNikolay Aleksandrov return NLMSG_ALIGN(sizeof(struct br_vlan_msg)) 1794cf5bddb9SNikolay Aleksandrov + nla_total_size(0) /* BRIDGE_VLANDB_ENTRY */ 1795cf5bddb9SNikolay Aleksandrov + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_ENTRY_RANGE */ 17967a53e718SNikolay Aleksandrov + nla_total_size(sizeof(struct bridge_vlan_info)) /* BRIDGE_VLANDB_ENTRY_INFO */ 17977a53e718SNikolay Aleksandrov + br_vlan_opts_nl_size(); /* bridge vlan options */ 1798cf5bddb9SNikolay Aleksandrov } 1799cf5bddb9SNikolay Aleksandrov 1800cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1801cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1802cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1803cf5bddb9SNikolay Aleksandrov int cmd) 1804cf5bddb9SNikolay Aleksandrov { 1805cf5bddb9SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 18067a53e718SNikolay Aleksandrov struct net_bridge_vlan *v = NULL; 1807cf5bddb9SNikolay Aleksandrov struct br_vlan_msg *bvm; 1808cf5bddb9SNikolay Aleksandrov struct nlmsghdr *nlh; 1809cf5bddb9SNikolay Aleksandrov struct sk_buff *skb; 1810cf5bddb9SNikolay Aleksandrov int err = -ENOBUFS; 1811cf5bddb9SNikolay Aleksandrov struct net *net; 1812cf5bddb9SNikolay Aleksandrov u16 flags = 0; 1813cf5bddb9SNikolay Aleksandrov int ifindex; 1814cf5bddb9SNikolay Aleksandrov 1815cf5bddb9SNikolay Aleksandrov /* right now notifications are done only with rtnl held */ 1816cf5bddb9SNikolay Aleksandrov ASSERT_RTNL(); 1817cf5bddb9SNikolay Aleksandrov 1818cf5bddb9SNikolay Aleksandrov if (p) { 1819cf5bddb9SNikolay Aleksandrov ifindex = p->dev->ifindex; 1820cf5bddb9SNikolay Aleksandrov vg = nbp_vlan_group(p); 1821cf5bddb9SNikolay Aleksandrov net = dev_net(p->dev); 1822cf5bddb9SNikolay Aleksandrov } else { 1823cf5bddb9SNikolay Aleksandrov ifindex = br->dev->ifindex; 1824cf5bddb9SNikolay Aleksandrov vg = br_vlan_group(br); 1825cf5bddb9SNikolay Aleksandrov net = dev_net(br->dev); 1826cf5bddb9SNikolay Aleksandrov } 1827cf5bddb9SNikolay Aleksandrov 1828cf5bddb9SNikolay Aleksandrov skb = nlmsg_new(rtnl_vlan_nlmsg_size(), GFP_KERNEL); 1829cf5bddb9SNikolay Aleksandrov if (!skb) 1830cf5bddb9SNikolay Aleksandrov goto out_err; 1831cf5bddb9SNikolay Aleksandrov 1832cf5bddb9SNikolay Aleksandrov err = -EMSGSIZE; 1833cf5bddb9SNikolay Aleksandrov nlh = nlmsg_put(skb, 0, 0, cmd, sizeof(*bvm), 0); 1834cf5bddb9SNikolay Aleksandrov if (!nlh) 1835cf5bddb9SNikolay Aleksandrov goto out_err; 1836cf5bddb9SNikolay Aleksandrov bvm = nlmsg_data(nlh); 1837cf5bddb9SNikolay Aleksandrov memset(bvm, 0, sizeof(*bvm)); 1838cf5bddb9SNikolay Aleksandrov bvm->family = AF_BRIDGE; 1839cf5bddb9SNikolay Aleksandrov bvm->ifindex = ifindex; 1840cf5bddb9SNikolay Aleksandrov 1841cf5bddb9SNikolay Aleksandrov switch (cmd) { 1842cf5bddb9SNikolay Aleksandrov case RTM_NEWVLAN: 1843cf5bddb9SNikolay Aleksandrov /* need to find the vlan due to flags/options */ 1844cf5bddb9SNikolay Aleksandrov v = br_vlan_find(vg, vid); 1845cf5bddb9SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) 1846cf5bddb9SNikolay Aleksandrov goto out_kfree; 1847cf5bddb9SNikolay Aleksandrov 1848cf5bddb9SNikolay Aleksandrov flags = v->flags; 1849cf5bddb9SNikolay Aleksandrov if (br_get_pvid(vg) == v->vid) 1850cf5bddb9SNikolay Aleksandrov flags |= BRIDGE_VLAN_INFO_PVID; 1851cf5bddb9SNikolay Aleksandrov break; 1852cf5bddb9SNikolay Aleksandrov case RTM_DELVLAN: 1853cf5bddb9SNikolay Aleksandrov break; 1854cf5bddb9SNikolay Aleksandrov default: 1855cf5bddb9SNikolay Aleksandrov goto out_kfree; 1856cf5bddb9SNikolay Aleksandrov } 1857cf5bddb9SNikolay Aleksandrov 185856d09976SNikolay Aleksandrov if (!br_vlan_fill_vids(skb, vid, vid_range, v, flags, false)) 1859cf5bddb9SNikolay Aleksandrov goto out_err; 1860cf5bddb9SNikolay Aleksandrov 1861cf5bddb9SNikolay Aleksandrov nlmsg_end(skb, nlh); 1862cf5bddb9SNikolay Aleksandrov rtnl_notify(skb, net, 0, RTNLGRP_BRVLAN, NULL, GFP_KERNEL); 1863cf5bddb9SNikolay Aleksandrov return; 1864cf5bddb9SNikolay Aleksandrov 1865cf5bddb9SNikolay Aleksandrov out_err: 1866cf5bddb9SNikolay Aleksandrov rtnl_set_sk_err(net, RTNLGRP_BRVLAN, err); 1867cf5bddb9SNikolay Aleksandrov out_kfree: 1868cf5bddb9SNikolay Aleksandrov kfree_skb(skb); 1869cf5bddb9SNikolay Aleksandrov } 1870cf5bddb9SNikolay Aleksandrov 18710ab55879SNikolay Aleksandrov /* check if v_curr can enter a range ending in range_end */ 1872a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 18730ab55879SNikolay Aleksandrov const struct net_bridge_vlan *range_end) 18740ab55879SNikolay Aleksandrov { 18750ab55879SNikolay Aleksandrov return v_curr->vid - range_end->vid == 1 && 18767a53e718SNikolay Aleksandrov range_end->flags == v_curr->flags && 187799f7c5e0SNikolay Aleksandrov br_vlan_opts_eq_range(v_curr, range_end); 18780ab55879SNikolay Aleksandrov } 18790ab55879SNikolay Aleksandrov 18808dcea187SNikolay Aleksandrov static int br_vlan_dump_dev(const struct net_device *dev, 18818dcea187SNikolay Aleksandrov struct sk_buff *skb, 188256d09976SNikolay Aleksandrov struct netlink_callback *cb, 188356d09976SNikolay Aleksandrov u32 dump_flags) 18848dcea187SNikolay Aleksandrov { 18850ab55879SNikolay Aleksandrov struct net_bridge_vlan *v, *range_start = NULL, *range_end = NULL; 1886743a53d9SNikolay Aleksandrov bool dump_global = !!(dump_flags & BRIDGE_VLANDB_DUMPF_GLOBAL); 188756d09976SNikolay Aleksandrov bool dump_stats = !!(dump_flags & BRIDGE_VLANDB_DUMPF_STATS); 18888dcea187SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 18898dcea187SNikolay Aleksandrov int idx = 0, s_idx = cb->args[1]; 18908dcea187SNikolay Aleksandrov struct nlmsghdr *nlh = NULL; 18918dcea187SNikolay Aleksandrov struct net_bridge_port *p; 18928dcea187SNikolay Aleksandrov struct br_vlan_msg *bvm; 18938dcea187SNikolay Aleksandrov struct net_bridge *br; 18948dcea187SNikolay Aleksandrov int err = 0; 18958dcea187SNikolay Aleksandrov u16 pvid; 18968dcea187SNikolay Aleksandrov 18978dcea187SNikolay Aleksandrov if (!netif_is_bridge_master(dev) && !netif_is_bridge_port(dev)) 18988dcea187SNikolay Aleksandrov return -EINVAL; 18998dcea187SNikolay Aleksandrov 19008dcea187SNikolay Aleksandrov if (netif_is_bridge_master(dev)) { 19018dcea187SNikolay Aleksandrov br = netdev_priv(dev); 19028dcea187SNikolay Aleksandrov vg = br_vlan_group_rcu(br); 19038dcea187SNikolay Aleksandrov p = NULL; 19048dcea187SNikolay Aleksandrov } else { 1905743a53d9SNikolay Aleksandrov /* global options are dumped only for bridge devices */ 1906743a53d9SNikolay Aleksandrov if (dump_global) 1907743a53d9SNikolay Aleksandrov return 0; 1908743a53d9SNikolay Aleksandrov 19098dcea187SNikolay Aleksandrov p = br_port_get_rcu(dev); 19108dcea187SNikolay Aleksandrov if (WARN_ON(!p)) 19118dcea187SNikolay Aleksandrov return -EINVAL; 19128dcea187SNikolay Aleksandrov vg = nbp_vlan_group_rcu(p); 19138dcea187SNikolay Aleksandrov br = p->br; 19148dcea187SNikolay Aleksandrov } 19158dcea187SNikolay Aleksandrov 19168dcea187SNikolay Aleksandrov if (!vg) 19178dcea187SNikolay Aleksandrov return 0; 19188dcea187SNikolay Aleksandrov 19198dcea187SNikolay Aleksandrov nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, 19208dcea187SNikolay Aleksandrov RTM_NEWVLAN, sizeof(*bvm), NLM_F_MULTI); 19218dcea187SNikolay Aleksandrov if (!nlh) 19228dcea187SNikolay Aleksandrov return -EMSGSIZE; 19238dcea187SNikolay Aleksandrov bvm = nlmsg_data(nlh); 19248dcea187SNikolay Aleksandrov memset(bvm, 0, sizeof(*bvm)); 19258dcea187SNikolay Aleksandrov bvm->family = PF_BRIDGE; 19268dcea187SNikolay Aleksandrov bvm->ifindex = dev->ifindex; 19278dcea187SNikolay Aleksandrov pvid = br_get_pvid(vg); 19288dcea187SNikolay Aleksandrov 19290ab55879SNikolay Aleksandrov /* idx must stay at range's beginning until it is filled in */ 19308dcea187SNikolay Aleksandrov list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { 1931743a53d9SNikolay Aleksandrov if (!dump_global && !br_vlan_should_use(v)) 19328dcea187SNikolay Aleksandrov continue; 19330ab55879SNikolay Aleksandrov if (idx < s_idx) { 19340ab55879SNikolay Aleksandrov idx++; 19350ab55879SNikolay Aleksandrov continue; 19360ab55879SNikolay Aleksandrov } 19370ab55879SNikolay Aleksandrov 19380ab55879SNikolay Aleksandrov if (!range_start) { 19390ab55879SNikolay Aleksandrov range_start = v; 19400ab55879SNikolay Aleksandrov range_end = v; 19410ab55879SNikolay Aleksandrov continue; 19420ab55879SNikolay Aleksandrov } 19430ab55879SNikolay Aleksandrov 1944743a53d9SNikolay Aleksandrov if (dump_global) { 1945743a53d9SNikolay Aleksandrov if (br_vlan_global_opts_can_enter_range(v, range_end)) 19466c4110d9SNikolay Aleksandrov goto update_end; 1947743a53d9SNikolay Aleksandrov if (!br_vlan_global_opts_fill(skb, range_start->vid, 1948743a53d9SNikolay Aleksandrov range_end->vid, 1949743a53d9SNikolay Aleksandrov range_start)) { 1950743a53d9SNikolay Aleksandrov err = -EMSGSIZE; 1951743a53d9SNikolay Aleksandrov break; 1952743a53d9SNikolay Aleksandrov } 1953743a53d9SNikolay Aleksandrov /* advance number of filled vlans */ 1954743a53d9SNikolay Aleksandrov idx += range_end->vid - range_start->vid + 1; 1955743a53d9SNikolay Aleksandrov 1956743a53d9SNikolay Aleksandrov range_start = v; 1957743a53d9SNikolay Aleksandrov } else if (dump_stats || v->vid == pvid || 195856d09976SNikolay Aleksandrov !br_vlan_can_enter_range(v, range_end)) { 195956d09976SNikolay Aleksandrov u16 vlan_flags = br_vlan_flags(range_start, pvid); 19600ab55879SNikolay Aleksandrov 19610ab55879SNikolay Aleksandrov if (!br_vlan_fill_vids(skb, range_start->vid, 19627a53e718SNikolay Aleksandrov range_end->vid, range_start, 196356d09976SNikolay Aleksandrov vlan_flags, dump_stats)) { 19648dcea187SNikolay Aleksandrov err = -EMSGSIZE; 19658dcea187SNikolay Aleksandrov break; 19668dcea187SNikolay Aleksandrov } 19670ab55879SNikolay Aleksandrov /* advance number of filled vlans */ 19680ab55879SNikolay Aleksandrov idx += range_end->vid - range_start->vid + 1; 19690ab55879SNikolay Aleksandrov 19700ab55879SNikolay Aleksandrov range_start = v; 19718dcea187SNikolay Aleksandrov } 19726c4110d9SNikolay Aleksandrov update_end: 19730ab55879SNikolay Aleksandrov range_end = v; 19740ab55879SNikolay Aleksandrov } 19750ab55879SNikolay Aleksandrov 19760ab55879SNikolay Aleksandrov /* err will be 0 and range_start will be set in 3 cases here: 19770ab55879SNikolay Aleksandrov * - first vlan (range_start == range_end) 19780ab55879SNikolay Aleksandrov * - last vlan (range_start == range_end, not in range) 19790ab55879SNikolay Aleksandrov * - last vlan range (range_start != range_end, in range) 19800ab55879SNikolay Aleksandrov */ 1981743a53d9SNikolay Aleksandrov if (!err && range_start) { 1982743a53d9SNikolay Aleksandrov if (dump_global && 1983743a53d9SNikolay Aleksandrov !br_vlan_global_opts_fill(skb, range_start->vid, 1984743a53d9SNikolay Aleksandrov range_end->vid, range_start)) 1985743a53d9SNikolay Aleksandrov err = -EMSGSIZE; 1986743a53d9SNikolay Aleksandrov else if (!dump_global && 1987743a53d9SNikolay Aleksandrov !br_vlan_fill_vids(skb, range_start->vid, 1988743a53d9SNikolay Aleksandrov range_end->vid, range_start, 1989743a53d9SNikolay Aleksandrov br_vlan_flags(range_start, pvid), 199056d09976SNikolay Aleksandrov dump_stats)) 19910ab55879SNikolay Aleksandrov err = -EMSGSIZE; 1992743a53d9SNikolay Aleksandrov } 19930ab55879SNikolay Aleksandrov 19940ab55879SNikolay Aleksandrov cb->args[1] = err ? idx : 0; 19950ab55879SNikolay Aleksandrov 19968dcea187SNikolay Aleksandrov nlmsg_end(skb, nlh); 19978dcea187SNikolay Aleksandrov 19988dcea187SNikolay Aleksandrov return err; 19998dcea187SNikolay Aleksandrov } 20008dcea187SNikolay Aleksandrov 200156d09976SNikolay Aleksandrov static const struct nla_policy br_vlan_db_dump_pol[BRIDGE_VLANDB_DUMP_MAX + 1] = { 200256d09976SNikolay Aleksandrov [BRIDGE_VLANDB_DUMP_FLAGS] = { .type = NLA_U32 }, 200356d09976SNikolay Aleksandrov }; 200456d09976SNikolay Aleksandrov 20058dcea187SNikolay Aleksandrov static int br_vlan_rtm_dump(struct sk_buff *skb, struct netlink_callback *cb) 20068dcea187SNikolay Aleksandrov { 200756d09976SNikolay Aleksandrov struct nlattr *dtb[BRIDGE_VLANDB_DUMP_MAX + 1]; 20088dcea187SNikolay Aleksandrov int idx = 0, err = 0, s_idx = cb->args[0]; 20098dcea187SNikolay Aleksandrov struct net *net = sock_net(skb->sk); 20108dcea187SNikolay Aleksandrov struct br_vlan_msg *bvm; 20118dcea187SNikolay Aleksandrov struct net_device *dev; 201256d09976SNikolay Aleksandrov u32 dump_flags = 0; 20138dcea187SNikolay Aleksandrov 201456d09976SNikolay Aleksandrov err = nlmsg_parse(cb->nlh, sizeof(*bvm), dtb, BRIDGE_VLANDB_DUMP_MAX, 201556d09976SNikolay Aleksandrov br_vlan_db_dump_pol, cb->extack); 20168dcea187SNikolay Aleksandrov if (err < 0) 20178dcea187SNikolay Aleksandrov return err; 20188dcea187SNikolay Aleksandrov 20198dcea187SNikolay Aleksandrov bvm = nlmsg_data(cb->nlh); 202056d09976SNikolay Aleksandrov if (dtb[BRIDGE_VLANDB_DUMP_FLAGS]) 202156d09976SNikolay Aleksandrov dump_flags = nla_get_u32(dtb[BRIDGE_VLANDB_DUMP_FLAGS]); 20228dcea187SNikolay Aleksandrov 20238dcea187SNikolay Aleksandrov rcu_read_lock(); 20248dcea187SNikolay Aleksandrov if (bvm->ifindex) { 20258dcea187SNikolay Aleksandrov dev = dev_get_by_index_rcu(net, bvm->ifindex); 20268dcea187SNikolay Aleksandrov if (!dev) { 20278dcea187SNikolay Aleksandrov err = -ENODEV; 20288dcea187SNikolay Aleksandrov goto out_err; 20298dcea187SNikolay Aleksandrov } 203056d09976SNikolay Aleksandrov err = br_vlan_dump_dev(dev, skb, cb, dump_flags); 2031dcb2c5c6SNikolay Aleksandrov /* if the dump completed without an error we return 0 here */ 2032dcb2c5c6SNikolay Aleksandrov if (err != -EMSGSIZE) 20338dcea187SNikolay Aleksandrov goto out_err; 20348dcea187SNikolay Aleksandrov } else { 20358dcea187SNikolay Aleksandrov for_each_netdev_rcu(net, dev) { 20368dcea187SNikolay Aleksandrov if (idx < s_idx) 20378dcea187SNikolay Aleksandrov goto skip; 20388dcea187SNikolay Aleksandrov 203956d09976SNikolay Aleksandrov err = br_vlan_dump_dev(dev, skb, cb, dump_flags); 20408dcea187SNikolay Aleksandrov if (err == -EMSGSIZE) 20418dcea187SNikolay Aleksandrov break; 20428dcea187SNikolay Aleksandrov skip: 20438dcea187SNikolay Aleksandrov idx++; 20448dcea187SNikolay Aleksandrov } 20458dcea187SNikolay Aleksandrov } 20468dcea187SNikolay Aleksandrov cb->args[0] = idx; 20478dcea187SNikolay Aleksandrov rcu_read_unlock(); 20488dcea187SNikolay Aleksandrov 20498dcea187SNikolay Aleksandrov return skb->len; 20508dcea187SNikolay Aleksandrov 20518dcea187SNikolay Aleksandrov out_err: 20528dcea187SNikolay Aleksandrov rcu_read_unlock(); 20538dcea187SNikolay Aleksandrov 20548dcea187SNikolay Aleksandrov return err; 20558dcea187SNikolay Aleksandrov } 20568dcea187SNikolay Aleksandrov 2057f26b2965SNikolay Aleksandrov static const struct nla_policy br_vlan_db_policy[BRIDGE_VLANDB_ENTRY_MAX + 1] = { 20588140860cSJohannes Berg [BRIDGE_VLANDB_ENTRY_INFO] = 20598140860cSJohannes Berg NLA_POLICY_EXACT_LEN(sizeof(struct bridge_vlan_info)), 20600ab55879SNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_RANGE] = { .type = NLA_U16 }, 2061a580c76dSNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_STATE] = { .type = NLA_U8 }, 2062fa388f29SNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_TUNNEL_INFO] = { .type = NLA_NESTED }, 20632796d846SNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_MCAST_ROUTER] = { .type = NLA_U8 }, 2064f26b2965SNikolay Aleksandrov }; 2065f26b2965SNikolay Aleksandrov 2066f26b2965SNikolay Aleksandrov static int br_vlan_rtm_process_one(struct net_device *dev, 2067f26b2965SNikolay Aleksandrov const struct nlattr *attr, 2068f26b2965SNikolay Aleksandrov int cmd, struct netlink_ext_ack *extack) 2069f26b2965SNikolay Aleksandrov { 20700ab55879SNikolay Aleksandrov struct bridge_vlan_info *vinfo, vrange_end, *vinfo_last = NULL; 2071f26b2965SNikolay Aleksandrov struct nlattr *tb[BRIDGE_VLANDB_ENTRY_MAX + 1]; 2072a5d29ae2SNikolay Aleksandrov bool changed = false, skip_processing = false; 2073f26b2965SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 2074f26b2965SNikolay Aleksandrov struct net_bridge_port *p = NULL; 2075f26b2965SNikolay Aleksandrov int err = 0, cmdmap = 0; 2076f26b2965SNikolay Aleksandrov struct net_bridge *br; 2077f26b2965SNikolay Aleksandrov 2078f26b2965SNikolay Aleksandrov if (netif_is_bridge_master(dev)) { 2079f26b2965SNikolay Aleksandrov br = netdev_priv(dev); 2080f26b2965SNikolay Aleksandrov vg = br_vlan_group(br); 2081f26b2965SNikolay Aleksandrov } else { 2082f26b2965SNikolay Aleksandrov p = br_port_get_rtnl(dev); 2083f26b2965SNikolay Aleksandrov if (WARN_ON(!p)) 2084f26b2965SNikolay Aleksandrov return -ENODEV; 2085f26b2965SNikolay Aleksandrov br = p->br; 2086f26b2965SNikolay Aleksandrov vg = nbp_vlan_group(p); 2087f26b2965SNikolay Aleksandrov } 2088f26b2965SNikolay Aleksandrov 2089f26b2965SNikolay Aleksandrov if (WARN_ON(!vg)) 2090f26b2965SNikolay Aleksandrov return -ENODEV; 2091f26b2965SNikolay Aleksandrov 2092f26b2965SNikolay Aleksandrov err = nla_parse_nested(tb, BRIDGE_VLANDB_ENTRY_MAX, attr, 2093f26b2965SNikolay Aleksandrov br_vlan_db_policy, extack); 2094f26b2965SNikolay Aleksandrov if (err) 2095f26b2965SNikolay Aleksandrov return err; 2096f26b2965SNikolay Aleksandrov 2097f26b2965SNikolay Aleksandrov if (!tb[BRIDGE_VLANDB_ENTRY_INFO]) { 2098f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Missing vlan entry info"); 2099f26b2965SNikolay Aleksandrov return -EINVAL; 2100f26b2965SNikolay Aleksandrov } 21010ab55879SNikolay Aleksandrov memset(&vrange_end, 0, sizeof(vrange_end)); 2102f26b2965SNikolay Aleksandrov 2103f26b2965SNikolay Aleksandrov vinfo = nla_data(tb[BRIDGE_VLANDB_ENTRY_INFO]); 2104f26b2965SNikolay Aleksandrov if (vinfo->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 2105f26b2965SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END)) { 2106f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Old-style vlan ranges are not allowed when using RTM vlan calls"); 2107f26b2965SNikolay Aleksandrov return -EINVAL; 2108f26b2965SNikolay Aleksandrov } 2109f26b2965SNikolay Aleksandrov if (!br_vlan_valid_id(vinfo->vid, extack)) 2110f26b2965SNikolay Aleksandrov return -EINVAL; 2111f26b2965SNikolay Aleksandrov 21120ab55879SNikolay Aleksandrov if (tb[BRIDGE_VLANDB_ENTRY_RANGE]) { 21130ab55879SNikolay Aleksandrov vrange_end.vid = nla_get_u16(tb[BRIDGE_VLANDB_ENTRY_RANGE]); 21140ab55879SNikolay Aleksandrov /* validate user-provided flags without RANGE_BEGIN */ 21150ab55879SNikolay Aleksandrov vrange_end.flags = BRIDGE_VLAN_INFO_RANGE_END | vinfo->flags; 21160ab55879SNikolay Aleksandrov vinfo->flags |= BRIDGE_VLAN_INFO_RANGE_BEGIN; 21170ab55879SNikolay Aleksandrov 21180ab55879SNikolay Aleksandrov /* vinfo_last is the range start, vinfo the range end */ 21190ab55879SNikolay Aleksandrov vinfo_last = vinfo; 21200ab55879SNikolay Aleksandrov vinfo = &vrange_end; 21210ab55879SNikolay Aleksandrov 21220ab55879SNikolay Aleksandrov if (!br_vlan_valid_id(vinfo->vid, extack) || 21230ab55879SNikolay Aleksandrov !br_vlan_valid_range(vinfo, vinfo_last, extack)) 21240ab55879SNikolay Aleksandrov return -EINVAL; 21250ab55879SNikolay Aleksandrov } 21260ab55879SNikolay Aleksandrov 2127f26b2965SNikolay Aleksandrov switch (cmd) { 2128f26b2965SNikolay Aleksandrov case RTM_NEWVLAN: 2129f26b2965SNikolay Aleksandrov cmdmap = RTM_SETLINK; 2130a5d29ae2SNikolay Aleksandrov skip_processing = !!(vinfo->flags & BRIDGE_VLAN_INFO_ONLY_OPTS); 2131f26b2965SNikolay Aleksandrov break; 2132adb3ce9bSNikolay Aleksandrov case RTM_DELVLAN: 2133adb3ce9bSNikolay Aleksandrov cmdmap = RTM_DELLINK; 2134adb3ce9bSNikolay Aleksandrov break; 2135f26b2965SNikolay Aleksandrov } 2136f26b2965SNikolay Aleksandrov 2137a5d29ae2SNikolay Aleksandrov if (!skip_processing) { 2138a5d29ae2SNikolay Aleksandrov struct bridge_vlan_info *tmp_last = vinfo_last; 2139a5d29ae2SNikolay Aleksandrov 2140a5d29ae2SNikolay Aleksandrov /* br_process_vlan_info may overwrite vinfo_last */ 2141a5d29ae2SNikolay Aleksandrov err = br_process_vlan_info(br, p, cmdmap, vinfo, &tmp_last, 2142a5d29ae2SNikolay Aleksandrov &changed, extack); 2143a5d29ae2SNikolay Aleksandrov 2144a5d29ae2SNikolay Aleksandrov /* notify first if anything changed */ 2145f26b2965SNikolay Aleksandrov if (changed) 2146f26b2965SNikolay Aleksandrov br_ifinfo_notify(cmdmap, br, p); 2147f26b2965SNikolay Aleksandrov 2148a5d29ae2SNikolay Aleksandrov if (err) 2149a5d29ae2SNikolay Aleksandrov return err; 2150a5d29ae2SNikolay Aleksandrov } 2151a5d29ae2SNikolay Aleksandrov 2152a5d29ae2SNikolay Aleksandrov /* deal with options */ 2153a5d29ae2SNikolay Aleksandrov if (cmd == RTM_NEWVLAN) { 2154a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, *range_end; 2155a5d29ae2SNikolay Aleksandrov 2156a5d29ae2SNikolay Aleksandrov if (vinfo_last) { 2157a5d29ae2SNikolay Aleksandrov range_start = br_vlan_find(vg, vinfo_last->vid); 2158a5d29ae2SNikolay Aleksandrov range_end = br_vlan_find(vg, vinfo->vid); 2159a5d29ae2SNikolay Aleksandrov } else { 2160a5d29ae2SNikolay Aleksandrov range_start = br_vlan_find(vg, vinfo->vid); 2161a5d29ae2SNikolay Aleksandrov range_end = range_start; 2162a5d29ae2SNikolay Aleksandrov } 2163a5d29ae2SNikolay Aleksandrov 2164a5d29ae2SNikolay Aleksandrov err = br_vlan_process_options(br, p, range_start, range_end, 2165a5d29ae2SNikolay Aleksandrov tb, extack); 2166a5d29ae2SNikolay Aleksandrov } 2167a5d29ae2SNikolay Aleksandrov 2168f26b2965SNikolay Aleksandrov return err; 2169f26b2965SNikolay Aleksandrov } 2170f26b2965SNikolay Aleksandrov 2171f26b2965SNikolay Aleksandrov static int br_vlan_rtm_process(struct sk_buff *skb, struct nlmsghdr *nlh, 2172f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack) 2173f26b2965SNikolay Aleksandrov { 2174f26b2965SNikolay Aleksandrov struct net *net = sock_net(skb->sk); 2175f26b2965SNikolay Aleksandrov struct br_vlan_msg *bvm; 2176f26b2965SNikolay Aleksandrov struct net_device *dev; 2177f26b2965SNikolay Aleksandrov struct nlattr *attr; 2178f26b2965SNikolay Aleksandrov int err, vlans = 0; 2179f26b2965SNikolay Aleksandrov int rem; 2180f26b2965SNikolay Aleksandrov 2181f26b2965SNikolay Aleksandrov /* this should validate the header and check for remaining bytes */ 2182f26b2965SNikolay Aleksandrov err = nlmsg_parse(nlh, sizeof(*bvm), NULL, BRIDGE_VLANDB_MAX, NULL, 2183f26b2965SNikolay Aleksandrov extack); 2184f26b2965SNikolay Aleksandrov if (err < 0) 2185f26b2965SNikolay Aleksandrov return err; 2186f26b2965SNikolay Aleksandrov 2187f26b2965SNikolay Aleksandrov bvm = nlmsg_data(nlh); 2188f26b2965SNikolay Aleksandrov dev = __dev_get_by_index(net, bvm->ifindex); 2189f26b2965SNikolay Aleksandrov if (!dev) 2190f26b2965SNikolay Aleksandrov return -ENODEV; 2191f26b2965SNikolay Aleksandrov 2192f26b2965SNikolay Aleksandrov if (!netif_is_bridge_master(dev) && !netif_is_bridge_port(dev)) { 2193f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "The device is not a valid bridge or bridge port"); 2194f26b2965SNikolay Aleksandrov return -EINVAL; 2195f26b2965SNikolay Aleksandrov } 2196f26b2965SNikolay Aleksandrov 2197f26b2965SNikolay Aleksandrov nlmsg_for_each_attr(attr, nlh, sizeof(*bvm), rem) { 219847ecd2dbSNikolay Aleksandrov switch (nla_type(attr)) { 219947ecd2dbSNikolay Aleksandrov case BRIDGE_VLANDB_ENTRY: 220047ecd2dbSNikolay Aleksandrov err = br_vlan_rtm_process_one(dev, attr, 220147ecd2dbSNikolay Aleksandrov nlh->nlmsg_type, 220247ecd2dbSNikolay Aleksandrov extack); 220347ecd2dbSNikolay Aleksandrov break; 220447ecd2dbSNikolay Aleksandrov case BRIDGE_VLANDB_GLOBAL_OPTIONS: 220547ecd2dbSNikolay Aleksandrov err = br_vlan_rtm_process_global_options(dev, attr, 220647ecd2dbSNikolay Aleksandrov nlh->nlmsg_type, 220747ecd2dbSNikolay Aleksandrov extack); 220847ecd2dbSNikolay Aleksandrov break; 220947ecd2dbSNikolay Aleksandrov default: 2210f26b2965SNikolay Aleksandrov continue; 221147ecd2dbSNikolay Aleksandrov } 2212f26b2965SNikolay Aleksandrov 2213f26b2965SNikolay Aleksandrov vlans++; 2214f26b2965SNikolay Aleksandrov if (err) 2215f26b2965SNikolay Aleksandrov break; 2216f26b2965SNikolay Aleksandrov } 2217f26b2965SNikolay Aleksandrov if (!vlans) { 2218f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "No vlans found to process"); 2219f26b2965SNikolay Aleksandrov err = -EINVAL; 2220f26b2965SNikolay Aleksandrov } 2221f26b2965SNikolay Aleksandrov 2222f26b2965SNikolay Aleksandrov return err; 2223f26b2965SNikolay Aleksandrov } 2224f26b2965SNikolay Aleksandrov 22258dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void) 22268dcea187SNikolay Aleksandrov { 22278dcea187SNikolay Aleksandrov rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_GETVLAN, NULL, 22288dcea187SNikolay Aleksandrov br_vlan_rtm_dump, 0); 2229f26b2965SNikolay Aleksandrov rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_NEWVLAN, 2230f26b2965SNikolay Aleksandrov br_vlan_rtm_process, NULL, 0); 2231adb3ce9bSNikolay Aleksandrov rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_DELVLAN, 2232adb3ce9bSNikolay Aleksandrov br_vlan_rtm_process, NULL, 0); 22338dcea187SNikolay Aleksandrov } 22348dcea187SNikolay Aleksandrov 22358dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void) 22368dcea187SNikolay Aleksandrov { 22378dcea187SNikolay Aleksandrov rtnl_unregister(PF_BRIDGE, RTM_GETVLAN); 2238f26b2965SNikolay Aleksandrov rtnl_unregister(PF_BRIDGE, RTM_NEWVLAN); 2239adb3ce9bSNikolay Aleksandrov rtnl_unregister(PF_BRIDGE, RTM_DELVLAN); 22408dcea187SNikolay Aleksandrov } 2241