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 { 287169327d5SPetr Machata err = br_switchdev_port_vlan_add(dev, v->vid, flags, extack); 2889c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 2899c86ce2cSPetr Machata goto out; 290613d61dbSNikolay Aleksandrov br_multicast_ctx_init(br, v, &v->br_mcast_ctx); 2917b54aaafSNikolay Aleksandrov v->priv_flags |= BR_VLFLAG_GLOBAL_MCAST_ENABLED; 2922594e906SNikolay Aleksandrov } 2932594e906SNikolay Aleksandrov 2946be144f6SNikolay Aleksandrov /* Add the dev mac and count the vlan only if it's usable */ 2952594e906SNikolay Aleksandrov if (br_vlan_should_use(v)) { 296f6814fdcSVladimir Oltean err = br_fdb_add_local(br, p, dev->dev_addr, v->vid); 2972594e906SNikolay Aleksandrov if (err) { 2982594e906SNikolay Aleksandrov br_err(br, "failed insert local address into bridge forwarding table\n"); 2992594e906SNikolay Aleksandrov goto out_filt; 3002594e906SNikolay Aleksandrov } 3016be144f6SNikolay Aleksandrov vg->num_vlans++; 3022594e906SNikolay Aleksandrov } 3032594e906SNikolay Aleksandrov 304a580c76dSNikolay Aleksandrov /* set the state before publishing */ 305a580c76dSNikolay Aleksandrov v->state = BR_STATE_FORWARDING; 306a580c76dSNikolay Aleksandrov 3076be144f6SNikolay Aleksandrov err = rhashtable_lookup_insert_fast(&vg->vlan_hash, &v->vnode, 3086be144f6SNikolay Aleksandrov br_vlan_rht_params); 3092594e906SNikolay Aleksandrov if (err) 3102594e906SNikolay Aleksandrov goto out_fdb_insert; 3112594e906SNikolay Aleksandrov 3122594e906SNikolay Aleksandrov __vlan_add_list(v); 3132594e906SNikolay Aleksandrov __vlan_add_flags(v, flags); 3147b54aaafSNikolay Aleksandrov br_multicast_toggle_one_vlan(v, true); 31580900acdSMike Manning 31680900acdSMike Manning if (p) 31780900acdSMike Manning nbp_vlan_set_vlan_dev_state(p, v->vid); 3182594e906SNikolay Aleksandrov out: 3192594e906SNikolay Aleksandrov return err; 3202594e906SNikolay Aleksandrov 3212594e906SNikolay Aleksandrov out_fdb_insert: 3226be144f6SNikolay Aleksandrov if (br_vlan_should_use(v)) { 3236be144f6SNikolay Aleksandrov br_fdb_find_delete_local(br, p, dev->dev_addr, v->vid); 3246be144f6SNikolay Aleksandrov vg->num_vlans--; 3256be144f6SNikolay Aleksandrov } 3262594e906SNikolay Aleksandrov 3272594e906SNikolay Aleksandrov out_filt: 3282594e906SNikolay Aleksandrov if (p) { 32927973793SIdo Schimmel __vlan_vid_del(dev, br, v); 3302594e906SNikolay Aleksandrov if (masterv) { 3311a3aea25SLi RongQing if (v->stats && masterv->stats != v->stats) 3321a3aea25SLi RongQing free_percpu(v->stats); 3331a3aea25SLi RongQing v->stats = NULL; 3341a3aea25SLi RongQing 335f8ed289fSNikolay Aleksandrov br_vlan_put_master(masterv); 3362594e906SNikolay Aleksandrov v->brvlan = NULL; 3372594e906SNikolay Aleksandrov } 3389c86ce2cSPetr Machata } else { 3399c86ce2cSPetr Machata br_switchdev_port_vlan_del(dev, v->vid); 3402594e906SNikolay Aleksandrov } 3412594e906SNikolay Aleksandrov 3422594e906SNikolay Aleksandrov goto out; 3432594e906SNikolay Aleksandrov } 3442594e906SNikolay Aleksandrov 3452594e906SNikolay Aleksandrov static int __vlan_del(struct net_bridge_vlan *v) 3462594e906SNikolay Aleksandrov { 3472594e906SNikolay Aleksandrov struct net_bridge_vlan *masterv = v; 34877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 3492594e906SNikolay Aleksandrov struct net_bridge_port *p = NULL; 3502594e906SNikolay Aleksandrov int err = 0; 3512594e906SNikolay Aleksandrov 3522594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 353907b1e6eSNikolay Aleksandrov vg = br_vlan_group(v->br); 3542594e906SNikolay Aleksandrov } else { 3552594e906SNikolay Aleksandrov p = v->port; 356907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(v->port); 3572594e906SNikolay Aleksandrov masterv = v->brvlan; 3582594e906SNikolay Aleksandrov } 3592594e906SNikolay Aleksandrov 36077751ee8SNikolay Aleksandrov __vlan_delete_pvid(vg, v->vid); 3612594e906SNikolay Aleksandrov if (p) { 36227973793SIdo Schimmel err = __vlan_vid_del(p->dev, p->br, v); 3632594e906SNikolay Aleksandrov if (err) 3642594e906SNikolay Aleksandrov goto out; 3659c86ce2cSPetr Machata } else { 3669c86ce2cSPetr Machata err = br_switchdev_port_vlan_del(v->br->dev, v->vid); 3679c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 3689c86ce2cSPetr Machata goto out; 3699c86ce2cSPetr Machata err = 0; 3702594e906SNikolay Aleksandrov } 3712594e906SNikolay Aleksandrov 3726be144f6SNikolay Aleksandrov if (br_vlan_should_use(v)) { 3732594e906SNikolay Aleksandrov v->flags &= ~BRIDGE_VLAN_INFO_BRENTRY; 3746be144f6SNikolay Aleksandrov vg->num_vlans--; 3752594e906SNikolay Aleksandrov } 3762594e906SNikolay Aleksandrov 3772594e906SNikolay Aleksandrov if (masterv != v) { 378efa5356bSRoopa Prabhu vlan_tunnel_info_del(vg, v); 37977751ee8SNikolay Aleksandrov rhashtable_remove_fast(&vg->vlan_hash, &v->vnode, 38077751ee8SNikolay Aleksandrov br_vlan_rht_params); 3812594e906SNikolay Aleksandrov __vlan_del_list(v); 38280900acdSMike Manning nbp_vlan_set_vlan_dev_state(p, v->vid); 3837b54aaafSNikolay Aleksandrov br_multicast_toggle_one_vlan(v, false); 384613d61dbSNikolay Aleksandrov br_multicast_port_ctx_deinit(&v->port_mcast_ctx); 3859163a0fcSNikolay Aleksandrov call_rcu(&v->rcu, nbp_vlan_rcu_free); 3862594e906SNikolay Aleksandrov } 3872594e906SNikolay Aleksandrov 388f8ed289fSNikolay Aleksandrov br_vlan_put_master(masterv); 3892594e906SNikolay Aleksandrov out: 390bf361ad3SVivien Didelot return err; 3918580e211SToshiaki Makita } 392243a2e63SVlad Yasevich 393f409d0edSNikolay Aleksandrov static void __vlan_group_free(struct net_bridge_vlan_group *vg) 394f409d0edSNikolay Aleksandrov { 395f409d0edSNikolay Aleksandrov WARN_ON(!list_empty(&vg->vlan_list)); 396f409d0edSNikolay Aleksandrov rhashtable_destroy(&vg->vlan_hash); 397efa5356bSRoopa Prabhu vlan_tunnel_deinit(vg); 398f409d0edSNikolay Aleksandrov kfree(vg); 399f409d0edSNikolay Aleksandrov } 400f409d0edSNikolay Aleksandrov 401f545923bSNikolay Aleksandrov static void __vlan_flush(const struct net_bridge *br, 402f545923bSNikolay Aleksandrov const struct net_bridge_port *p, 403f545923bSNikolay Aleksandrov struct net_bridge_vlan_group *vg) 404243a2e63SVlad Yasevich { 4052594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan, *tmp; 406f545923bSNikolay Aleksandrov u16 v_start = 0, v_end = 0; 407*5454f5c2SVladimir Oltean int err; 4082594e906SNikolay Aleksandrov 409f409d0edSNikolay Aleksandrov __vlan_delete_pvid(vg, vg->pvid); 410f545923bSNikolay Aleksandrov list_for_each_entry_safe(vlan, tmp, &vg->vlan_list, vlist) { 411f545923bSNikolay Aleksandrov /* take care of disjoint ranges */ 412f545923bSNikolay Aleksandrov if (!v_start) { 413f545923bSNikolay Aleksandrov v_start = vlan->vid; 414f545923bSNikolay Aleksandrov } else if (vlan->vid - v_end != 1) { 415f545923bSNikolay Aleksandrov /* found range end, notify and start next one */ 416f545923bSNikolay Aleksandrov br_vlan_notify(br, p, v_start, v_end, RTM_DELVLAN); 417f545923bSNikolay Aleksandrov v_start = vlan->vid; 418f545923bSNikolay Aleksandrov } 419f545923bSNikolay Aleksandrov v_end = vlan->vid; 420f545923bSNikolay Aleksandrov 421*5454f5c2SVladimir Oltean err = __vlan_del(vlan); 422*5454f5c2SVladimir Oltean if (err) { 423*5454f5c2SVladimir Oltean br_err(br, 424*5454f5c2SVladimir Oltean "port %u(%s) failed to delete vlan %d: %pe\n", 425*5454f5c2SVladimir Oltean (unsigned int) p->port_no, p->dev->name, 426*5454f5c2SVladimir Oltean vlan->vid, ERR_PTR(err)); 427*5454f5c2SVladimir Oltean } 428243a2e63SVlad Yasevich } 429243a2e63SVlad Yasevich 430f545923bSNikolay Aleksandrov /* notify about the last/whole vlan range */ 431f545923bSNikolay Aleksandrov if (v_start) 432f545923bSNikolay Aleksandrov br_vlan_notify(br, p, v_start, v_end, RTM_DELVLAN); 433f545923bSNikolay Aleksandrov } 434f545923bSNikolay Aleksandrov 43578851988SVlad Yasevich struct sk_buff *br_handle_vlan(struct net_bridge *br, 43611538d03SRoopa Prabhu const struct net_bridge_port *p, 4372594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 438a37b85c9SVlad Yasevich struct sk_buff *skb) 439a37b85c9SVlad Yasevich { 440281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats; 4412594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 442a37b85c9SVlad Yasevich u16 vid; 443a37b85c9SVlad Yasevich 44420adfa1aSVlad Yasevich /* If this packet was not filtered at input, let it pass */ 44520adfa1aSVlad Yasevich if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) 44678851988SVlad Yasevich goto out; 44778851988SVlad Yasevich 4482594e906SNikolay Aleksandrov /* At this point, we know that the frame was filtered and contains 4492594e906SNikolay Aleksandrov * a valid vlan id. If the vlan id has untagged flag set, 4502594e906SNikolay Aleksandrov * send untagged; otherwise, send tagged. 4512594e906SNikolay Aleksandrov */ 4522594e906SNikolay Aleksandrov br_vlan_get_tag(skb, &vid); 4532594e906SNikolay Aleksandrov v = br_vlan_find(vg, vid); 4542594e906SNikolay Aleksandrov /* Vlan entry must be configured at this point. The 455fc92f745SVlad Yasevich * only exception is the bridge is set in promisc mode and the 456fc92f745SVlad Yasevich * packet is destined for the bridge device. In this case 457fc92f745SVlad Yasevich * pass the packet as is. 458fc92f745SVlad Yasevich */ 4592594e906SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) { 460fc92f745SVlad Yasevich if ((br->dev->flags & IFF_PROMISC) && skb->dev == br->dev) { 461fc92f745SVlad Yasevich goto out; 462fc92f745SVlad Yasevich } else { 463fc92f745SVlad Yasevich kfree_skb(skb); 464fc92f745SVlad Yasevich return NULL; 465fc92f745SVlad Yasevich } 466fc92f745SVlad Yasevich } 467ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 4686dada9b1SNikolay Aleksandrov stats = this_cpu_ptr(v->stats); 4696dada9b1SNikolay Aleksandrov u64_stats_update_begin(&stats->syncp); 4706dada9b1SNikolay Aleksandrov stats->tx_bytes += skb->len; 4716dada9b1SNikolay Aleksandrov stats->tx_packets++; 4726dada9b1SNikolay Aleksandrov u64_stats_update_end(&stats->syncp); 4736dada9b1SNikolay Aleksandrov } 4746dada9b1SNikolay Aleksandrov 47547211192STobias Waldekranz /* If the skb will be sent using forwarding offload, the assumption is 47647211192STobias Waldekranz * that the switchdev will inject the packet into hardware together 47747211192STobias Waldekranz * with the bridge VLAN, so that it can be forwarded according to that 47847211192STobias Waldekranz * VLAN. The switchdev should deal with popping the VLAN header in 47947211192STobias Waldekranz * hardware on each egress port as appropriate. So only strip the VLAN 48047211192STobias Waldekranz * header if forwarding offload is not being used. 48147211192STobias Waldekranz */ 48247211192STobias Waldekranz if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED && 48347211192STobias Waldekranz !br_switchdev_frame_uses_tx_fwd_offload(skb)) 4845978f8a9SMichał Mirosław __vlan_hwaccel_clear_tag(skb); 48511538d03SRoopa Prabhu 48611538d03SRoopa Prabhu if (p && (p->flags & BR_VLAN_TUNNEL) && 48711538d03SRoopa Prabhu br_handle_egress_vlan_tunnel(skb, v)) { 48811538d03SRoopa Prabhu kfree_skb(skb); 48911538d03SRoopa Prabhu return NULL; 49011538d03SRoopa Prabhu } 49178851988SVlad Yasevich out: 49278851988SVlad Yasevich return skb; 49378851988SVlad Yasevich } 49478851988SVlad Yasevich 49578851988SVlad Yasevich /* Called under RCU */ 4966dada9b1SNikolay Aleksandrov static bool __allowed_ingress(const struct net_bridge *br, 4976dada9b1SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 498a580c76dSNikolay Aleksandrov struct sk_buff *skb, u16 *vid, 499f4b7002aSNikolay Aleksandrov u8 *state, 500f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 50178851988SVlad Yasevich { 502281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats; 5036dada9b1SNikolay Aleksandrov struct net_bridge_vlan *v; 5048580e211SToshiaki Makita bool tagged; 505a37b85c9SVlad Yasevich 50620adfa1aSVlad Yasevich BR_INPUT_SKB_CB(skb)->vlan_filtered = true; 50712464bb8SToshiaki Makita /* If vlan tx offload is disabled on bridge device and frame was 50812464bb8SToshiaki Makita * sent from vlan device on the bridge device, it does not have 50912464bb8SToshiaki Makita * HW accelerated vlan tag. 51012464bb8SToshiaki Makita */ 511df8a39deSJiri Pirko if (unlikely(!skb_vlan_tag_present(skb) && 5126dada9b1SNikolay Aleksandrov skb->protocol == br->vlan_proto)) { 5130d5501c1SVlad Yasevich skb = skb_vlan_untag(skb); 51412464bb8SToshiaki Makita if (unlikely(!skb)) 51512464bb8SToshiaki Makita return false; 51612464bb8SToshiaki Makita } 51712464bb8SToshiaki Makita 5188580e211SToshiaki Makita if (!br_vlan_get_tag(skb, vid)) { 5198580e211SToshiaki Makita /* Tagged frame */ 5206dada9b1SNikolay Aleksandrov if (skb->vlan_proto != br->vlan_proto) { 5218580e211SToshiaki Makita /* Protocol-mismatch, empty out vlan_tci for new tag */ 5228580e211SToshiaki Makita skb_push(skb, ETH_HLEN); 52362749e2cSJiri Pirko skb = vlan_insert_tag_set_proto(skb, skb->vlan_proto, 524df8a39deSJiri Pirko skb_vlan_tag_get(skb)); 5258580e211SToshiaki Makita if (unlikely(!skb)) 5268580e211SToshiaki Makita return false; 5278580e211SToshiaki Makita 5288580e211SToshiaki Makita skb_pull(skb, ETH_HLEN); 5298580e211SToshiaki Makita skb_reset_mac_len(skb); 5308580e211SToshiaki Makita *vid = 0; 5318580e211SToshiaki Makita tagged = false; 5328580e211SToshiaki Makita } else { 5338580e211SToshiaki Makita tagged = true; 5348580e211SToshiaki Makita } 5358580e211SToshiaki Makita } else { 5368580e211SToshiaki Makita /* Untagged frame */ 5378580e211SToshiaki Makita tagged = false; 5388580e211SToshiaki Makita } 5398580e211SToshiaki Makita 540b90356ceSToshiaki Makita if (!*vid) { 54177751ee8SNikolay Aleksandrov u16 pvid = br_get_pvid(vg); 54277751ee8SNikolay Aleksandrov 543b90356ceSToshiaki Makita /* Frame had a tag with VID 0 or did not have a tag. 544b90356ceSToshiaki Makita * See if pvid is set on this port. That tells us which 545b90356ceSToshiaki Makita * vlan untagged or priority-tagged traffic belongs to. 54678851988SVlad Yasevich */ 5473df6bf45SVlad Yasevich if (!pvid) 548eb707618SToshiaki Makita goto drop; 54978851988SVlad Yasevich 550b90356ceSToshiaki Makita /* PVID is set on this port. Any untagged or priority-tagged 551b90356ceSToshiaki Makita * ingress frame is considered to belong to this vlan. 55278851988SVlad Yasevich */ 553dfb5fa32SToshiaki Makita *vid = pvid; 5548580e211SToshiaki Makita if (likely(!tagged)) 555b90356ceSToshiaki Makita /* Untagged Frame. */ 5566dada9b1SNikolay Aleksandrov __vlan_hwaccel_put_tag(skb, br->vlan_proto, pvid); 557b90356ceSToshiaki Makita else 558b90356ceSToshiaki Makita /* Priority-tagged Frame. 5595978f8a9SMichał Mirosław * At this point, we know that skb->vlan_tci VID 5605978f8a9SMichał Mirosław * field was 0. 561b90356ceSToshiaki Makita * We update only VID field and preserve PCP field. 562b90356ceSToshiaki Makita */ 563b90356ceSToshiaki Makita skb->vlan_tci |= pvid; 564b90356ceSToshiaki Makita 565f4b7002aSNikolay Aleksandrov /* if snooping and stats are disabled we can avoid the lookup */ 566f4b7002aSNikolay Aleksandrov if (!br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && 567f4b7002aSNikolay Aleksandrov !br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 568a580c76dSNikolay Aleksandrov if (*state == BR_STATE_FORWARDING) { 569a580c76dSNikolay Aleksandrov *state = br_vlan_get_pvid_state(vg); 570fd20d973STim Yi if (!br_vlan_state_allowed(*state, true)) 571fd20d973STim Yi goto drop; 57278851988SVlad Yasevich } 573fd20d973STim Yi return true; 574a580c76dSNikolay Aleksandrov } 575a580c76dSNikolay Aleksandrov } 57677751ee8SNikolay Aleksandrov v = br_vlan_find(vg, *vid); 5776dada9b1SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) 5786dada9b1SNikolay Aleksandrov goto drop; 5796dada9b1SNikolay Aleksandrov 580a580c76dSNikolay Aleksandrov if (*state == BR_STATE_FORWARDING) { 581a580c76dSNikolay Aleksandrov *state = br_vlan_get_state(v); 582a580c76dSNikolay Aleksandrov if (!br_vlan_state_allowed(*state, true)) 583a580c76dSNikolay Aleksandrov goto drop; 584a580c76dSNikolay Aleksandrov } 585a580c76dSNikolay Aleksandrov 586ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 5876dada9b1SNikolay Aleksandrov stats = this_cpu_ptr(v->stats); 5886dada9b1SNikolay Aleksandrov u64_stats_update_begin(&stats->syncp); 5896dada9b1SNikolay Aleksandrov stats->rx_bytes += skb->len; 5906dada9b1SNikolay Aleksandrov stats->rx_packets++; 5916dada9b1SNikolay Aleksandrov u64_stats_update_end(&stats->syncp); 5926dada9b1SNikolay Aleksandrov } 5936dada9b1SNikolay Aleksandrov 594f4b7002aSNikolay Aleksandrov *vlan = v; 595f4b7002aSNikolay Aleksandrov 596a37b85c9SVlad Yasevich return true; 5976dada9b1SNikolay Aleksandrov 598eb707618SToshiaki Makita drop: 599eb707618SToshiaki Makita kfree_skb(skb); 600a37b85c9SVlad Yasevich return false; 601a37b85c9SVlad Yasevich } 602a37b85c9SVlad Yasevich 60377751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 60477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 605f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 606f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 6072594e906SNikolay Aleksandrov { 6082594e906SNikolay Aleksandrov /* If VLAN filtering is disabled on the bridge, all packets are 6092594e906SNikolay Aleksandrov * permitted. 6102594e906SNikolay Aleksandrov */ 611f4b7002aSNikolay Aleksandrov *vlan = NULL; 612ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED)) { 6132594e906SNikolay Aleksandrov BR_INPUT_SKB_CB(skb)->vlan_filtered = false; 6142594e906SNikolay Aleksandrov return true; 6152594e906SNikolay Aleksandrov } 6162594e906SNikolay Aleksandrov 617f4b7002aSNikolay Aleksandrov return __allowed_ingress(br, vg, skb, vid, state, vlan); 6182594e906SNikolay Aleksandrov } 6192594e906SNikolay Aleksandrov 62085f46c6bSVlad Yasevich /* Called under RCU. */ 6212594e906SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 62285f46c6bSVlad Yasevich const struct sk_buff *skb) 62385f46c6bSVlad Yasevich { 6242594e906SNikolay Aleksandrov const struct net_bridge_vlan *v; 62585f46c6bSVlad Yasevich u16 vid; 62685f46c6bSVlad Yasevich 62720adfa1aSVlad Yasevich /* If this packet was not filtered at input, let it pass */ 62820adfa1aSVlad Yasevich if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) 62985f46c6bSVlad Yasevich return true; 63085f46c6bSVlad Yasevich 63185f46c6bSVlad Yasevich br_vlan_get_tag(skb, &vid); 6322594e906SNikolay Aleksandrov v = br_vlan_find(vg, vid); 633a580c76dSNikolay Aleksandrov if (v && br_vlan_should_use(v) && 634a580c76dSNikolay Aleksandrov br_vlan_state_allowed(br_vlan_get_state(v), false)) 63585f46c6bSVlad Yasevich return true; 63685f46c6bSVlad Yasevich 63785f46c6bSVlad Yasevich return false; 63885f46c6bSVlad Yasevich } 63985f46c6bSVlad Yasevich 640e0d7968aSToshiaki Makita /* Called under RCU */ 641e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid) 642e0d7968aSToshiaki Makita { 643468e7944SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 644e0d7968aSToshiaki Makita struct net_bridge *br = p->br; 645a580c76dSNikolay Aleksandrov struct net_bridge_vlan *v; 646e0d7968aSToshiaki Makita 64720adfa1aSVlad Yasevich /* If filtering was disabled at input, let it pass. */ 648ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED)) 649e0d7968aSToshiaki Makita return true; 650e0d7968aSToshiaki Makita 651eca1e006SIdo Schimmel vg = nbp_vlan_group_rcu(p); 652468e7944SNikolay Aleksandrov if (!vg || !vg->num_vlans) 653e0d7968aSToshiaki Makita return false; 654e0d7968aSToshiaki Makita 6558580e211SToshiaki Makita if (!br_vlan_get_tag(skb, vid) && skb->vlan_proto != br->vlan_proto) 6568580e211SToshiaki Makita *vid = 0; 6578580e211SToshiaki Makita 658e0d7968aSToshiaki Makita if (!*vid) { 65977751ee8SNikolay Aleksandrov *vid = br_get_pvid(vg); 660a580c76dSNikolay Aleksandrov if (!*vid || 661a580c76dSNikolay Aleksandrov !br_vlan_state_allowed(br_vlan_get_pvid_state(vg), true)) 662e0d7968aSToshiaki Makita return false; 663e0d7968aSToshiaki Makita 664e0d7968aSToshiaki Makita return true; 665e0d7968aSToshiaki Makita } 666e0d7968aSToshiaki Makita 667a580c76dSNikolay Aleksandrov v = br_vlan_find(vg, *vid); 668a580c76dSNikolay Aleksandrov if (v && br_vlan_state_allowed(br_vlan_get_state(v), true)) 669e0d7968aSToshiaki Makita return true; 670e0d7968aSToshiaki Makita 671e0d7968aSToshiaki Makita return false; 672e0d7968aSToshiaki Makita } 673e0d7968aSToshiaki Makita 674dbd6dc75SPetr Machata static int br_vlan_add_existing(struct net_bridge *br, 675dbd6dc75SPetr Machata struct net_bridge_vlan_group *vg, 676dbd6dc75SPetr Machata struct net_bridge_vlan *vlan, 677169327d5SPetr Machata u16 flags, bool *changed, 678169327d5SPetr Machata struct netlink_ext_ack *extack) 679dbd6dc75SPetr Machata { 680dbd6dc75SPetr Machata int err; 681dbd6dc75SPetr Machata 682169327d5SPetr Machata err = br_switchdev_port_vlan_add(br->dev, vlan->vid, flags, extack); 6839c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 6849c86ce2cSPetr Machata return err; 6859c86ce2cSPetr Machata 686dbd6dc75SPetr Machata if (!br_vlan_is_brentry(vlan)) { 687dbd6dc75SPetr Machata /* Trying to change flags of non-existent bridge vlan */ 6889c86ce2cSPetr Machata if (!(flags & BRIDGE_VLAN_INFO_BRENTRY)) { 6899c86ce2cSPetr Machata err = -EINVAL; 6909c86ce2cSPetr Machata goto err_flags; 6919c86ce2cSPetr Machata } 692dbd6dc75SPetr Machata /* It was only kept for port vlans, now make it real */ 693f6814fdcSVladimir Oltean err = br_fdb_add_local(br, NULL, br->dev->dev_addr, vlan->vid); 694dbd6dc75SPetr Machata if (err) { 695dbd6dc75SPetr Machata br_err(br, "failed to insert local address into bridge forwarding table\n"); 6969c86ce2cSPetr Machata goto err_fdb_insert; 697dbd6dc75SPetr Machata } 698dbd6dc75SPetr Machata 699dbd6dc75SPetr Machata refcount_inc(&vlan->refcnt); 700dbd6dc75SPetr Machata vlan->flags |= BRIDGE_VLAN_INFO_BRENTRY; 701dbd6dc75SPetr Machata vg->num_vlans++; 702dbd6dc75SPetr Machata *changed = true; 703b92dace3SNikolay Aleksandrov br_multicast_toggle_one_vlan(vlan, true); 704dbd6dc75SPetr Machata } 705dbd6dc75SPetr Machata 706dbd6dc75SPetr Machata if (__vlan_add_flags(vlan, flags)) 707dbd6dc75SPetr Machata *changed = true; 708dbd6dc75SPetr Machata 709dbd6dc75SPetr Machata return 0; 7109c86ce2cSPetr Machata 7119c86ce2cSPetr Machata err_fdb_insert: 7129c86ce2cSPetr Machata err_flags: 7139c86ce2cSPetr Machata br_switchdev_port_vlan_del(br->dev, vlan->vid); 7149c86ce2cSPetr Machata return err; 715dbd6dc75SPetr Machata } 716dbd6dc75SPetr Machata 7178adff41cSToshiaki Makita /* Must be protected by RTNL. 7188adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 719f418af63SNikolay Aleksandrov * changed must be true only if the vlan was created or updated 7208adff41cSToshiaki Makita */ 721169327d5SPetr Machata int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, bool *changed, 722169327d5SPetr Machata struct netlink_ext_ack *extack) 723243a2e63SVlad Yasevich { 724907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 7252594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 7262594e906SNikolay Aleksandrov int ret; 727243a2e63SVlad Yasevich 728243a2e63SVlad Yasevich ASSERT_RTNL(); 729243a2e63SVlad Yasevich 730f418af63SNikolay Aleksandrov *changed = false; 731907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 732907b1e6eSNikolay Aleksandrov vlan = br_vlan_find(vg, vid); 733dbd6dc75SPetr Machata if (vlan) 734169327d5SPetr Machata return br_vlan_add_existing(br, vg, vlan, flags, changed, 735169327d5SPetr Machata extack); 736243a2e63SVlad Yasevich 7372594e906SNikolay Aleksandrov vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); 7382594e906SNikolay Aleksandrov if (!vlan) 739243a2e63SVlad Yasevich return -ENOMEM; 740243a2e63SVlad Yasevich 741281cc284SHeiner Kallweit vlan->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); 7426dada9b1SNikolay Aleksandrov if (!vlan->stats) { 7436dada9b1SNikolay Aleksandrov kfree(vlan); 7446dada9b1SNikolay Aleksandrov return -ENOMEM; 7456dada9b1SNikolay Aleksandrov } 7462594e906SNikolay Aleksandrov vlan->vid = vid; 7472594e906SNikolay Aleksandrov vlan->flags = flags | BRIDGE_VLAN_INFO_MASTER; 7482594e906SNikolay Aleksandrov vlan->flags &= ~BRIDGE_VLAN_INFO_PVID; 7492594e906SNikolay Aleksandrov vlan->br = br; 7502594e906SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_BRENTRY) 75125127759SReshetova, Elena refcount_set(&vlan->refcnt, 1); 752169327d5SPetr Machata ret = __vlan_add(vlan, flags, extack); 7536dada9b1SNikolay Aleksandrov if (ret) { 7546dada9b1SNikolay Aleksandrov free_percpu(vlan->stats); 7552594e906SNikolay Aleksandrov kfree(vlan); 756f418af63SNikolay Aleksandrov } else { 757f418af63SNikolay Aleksandrov *changed = true; 7586dada9b1SNikolay Aleksandrov } 759243a2e63SVlad Yasevich 7602594e906SNikolay Aleksandrov return ret; 761243a2e63SVlad Yasevich } 762243a2e63SVlad Yasevich 7638adff41cSToshiaki Makita /* Must be protected by RTNL. 7648adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 7658adff41cSToshiaki Makita */ 766243a2e63SVlad Yasevich int br_vlan_delete(struct net_bridge *br, u16 vid) 767243a2e63SVlad Yasevich { 768907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 7692594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 770243a2e63SVlad Yasevich 771243a2e63SVlad Yasevich ASSERT_RTNL(); 772243a2e63SVlad Yasevich 773907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 774907b1e6eSNikolay Aleksandrov v = br_vlan_find(vg, vid); 7752594e906SNikolay Aleksandrov if (!v || !br_vlan_is_brentry(v)) 7762594e906SNikolay Aleksandrov return -ENOENT; 777243a2e63SVlad Yasevich 778424bb9c9SToshiaki Makita br_fdb_find_delete_local(br, NULL, br->dev->dev_addr, vid); 7793741873bSRoopa Prabhu br_fdb_delete_by_port(br, NULL, vid, 0); 780bc9a25d2SVlad Yasevich 781efa5356bSRoopa Prabhu vlan_tunnel_info_del(vg, v); 782efa5356bSRoopa Prabhu 7832594e906SNikolay Aleksandrov return __vlan_del(v); 784243a2e63SVlad Yasevich } 785243a2e63SVlad Yasevich 786243a2e63SVlad Yasevich void br_vlan_flush(struct net_bridge *br) 787243a2e63SVlad Yasevich { 788f409d0edSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 789f409d0edSNikolay Aleksandrov 790243a2e63SVlad Yasevich ASSERT_RTNL(); 791243a2e63SVlad Yasevich 792f409d0edSNikolay Aleksandrov vg = br_vlan_group(br); 793f545923bSNikolay Aleksandrov __vlan_flush(br, NULL, vg); 794f409d0edSNikolay Aleksandrov RCU_INIT_POINTER(br->vlgrp, NULL); 795f409d0edSNikolay Aleksandrov synchronize_rcu(); 796f409d0edSNikolay Aleksandrov __vlan_group_free(vg); 797243a2e63SVlad Yasevich } 798243a2e63SVlad Yasevich 7992594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid) 8002b292fb4SToshiaki Makita { 8012594e906SNikolay Aleksandrov if (!vg) 8022594e906SNikolay Aleksandrov return NULL; 8032b292fb4SToshiaki Makita 8042594e906SNikolay Aleksandrov return br_vlan_lookup(&vg->vlan_hash, vid); 8052b292fb4SToshiaki Makita } 8062b292fb4SToshiaki Makita 807204177f3SToshiaki Makita /* Must be protected by RTNL. */ 808204177f3SToshiaki Makita static void recalculate_group_addr(struct net_bridge *br) 809204177f3SToshiaki Makita { 810be3664a0SNikolay Aleksandrov if (br_opt_get(br, BROPT_GROUP_ADDR_SET)) 811204177f3SToshiaki Makita return; 812204177f3SToshiaki Makita 813204177f3SToshiaki Makita spin_lock_bh(&br->lock); 814ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED) || 815ae75767eSNikolay Aleksandrov br->vlan_proto == htons(ETH_P_8021Q)) { 816204177f3SToshiaki Makita /* Bridge Group Address */ 817204177f3SToshiaki Makita br->group_addr[5] = 0x00; 818204177f3SToshiaki Makita } else { /* vlan_enabled && ETH_P_8021AD */ 819204177f3SToshiaki Makita /* Provider Bridge Group Address */ 820204177f3SToshiaki Makita br->group_addr[5] = 0x08; 821204177f3SToshiaki Makita } 822204177f3SToshiaki Makita spin_unlock_bh(&br->lock); 823204177f3SToshiaki Makita } 824204177f3SToshiaki Makita 825204177f3SToshiaki Makita /* Must be protected by RTNL. */ 826204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br) 827204177f3SToshiaki Makita { 828ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED) || 829ae75767eSNikolay Aleksandrov br->vlan_proto == htons(ETH_P_8021Q)) 830204177f3SToshiaki Makita br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT; 831204177f3SToshiaki Makita else /* vlan_enabled && ETH_P_8021AD */ 832204177f3SToshiaki Makita br->group_fwd_mask_required = BR_GROUPFWD_8021AD & 833204177f3SToshiaki Makita ~(1u << br->group_addr[5]); 834204177f3SToshiaki Makita } 835204177f3SToshiaki Makita 8369e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 8379e781401SVladimir Oltean struct netlink_ext_ack *extack) 838243a2e63SVlad Yasevich { 8396b72a770SElad Raz struct switchdev_attr attr = { 8406b72a770SElad Raz .orig_dev = br->dev, 8416b72a770SElad Raz .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, 8426b72a770SElad Raz .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 8436b72a770SElad Raz .u.vlan_filtering = val, 8446b72a770SElad Raz }; 8456b72a770SElad Raz int err; 8466b72a770SElad Raz 847ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_ENABLED) == !!val) 848a7854037SNikolay Aleksandrov return 0; 849243a2e63SVlad Yasevich 850ae75767eSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_ENABLED, !!val); 851f7cdb3ecSVladimir Oltean 852f7cdb3ecSVladimir Oltean err = switchdev_port_attr_set(br->dev, &attr, extack); 853f7cdb3ecSVladimir Oltean if (err && err != -EOPNOTSUPP) { 854f7cdb3ecSVladimir Oltean br_opt_toggle(br, BROPT_VLAN_ENABLED, !val); 855f7cdb3ecSVladimir Oltean return err; 856f7cdb3ecSVladimir Oltean } 857f7cdb3ecSVladimir Oltean 8582796d0c6SVlad Yasevich br_manage_promisc(br); 859204177f3SToshiaki Makita recalculate_group_addr(br); 860204177f3SToshiaki Makita br_recalculate_fwd_mask(br); 861f4b7002aSNikolay Aleksandrov if (!val && br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED)) { 862f4b7002aSNikolay Aleksandrov br_info(br, "vlan filtering disabled, automatically disabling multicast vlan snooping\n"); 863f4b7002aSNikolay Aleksandrov br_multicast_toggle_vlan_snooping(br, false, NULL); 864f4b7002aSNikolay Aleksandrov } 865243a2e63SVlad Yasevich 866a7854037SNikolay Aleksandrov return 0; 867a7854037SNikolay Aleksandrov } 868a7854037SNikolay Aleksandrov 8691f51445aSIdo Schimmel bool br_vlan_enabled(const struct net_device *dev) 8701f51445aSIdo Schimmel { 8711f51445aSIdo Schimmel struct net_bridge *br = netdev_priv(dev); 8721f51445aSIdo Schimmel 873ae75767eSNikolay Aleksandrov return br_opt_get(br, BROPT_VLAN_ENABLED); 8741f51445aSIdo Schimmel } 8751f51445aSIdo Schimmel EXPORT_SYMBOL_GPL(br_vlan_enabled); 8761f51445aSIdo Schimmel 87731aed46fSwenxu int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto) 87831aed46fSwenxu { 87931aed46fSwenxu struct net_bridge *br = netdev_priv(dev); 88031aed46fSwenxu 88131aed46fSwenxu *p_proto = ntohs(br->vlan_proto); 88231aed46fSwenxu 88331aed46fSwenxu return 0; 88431aed46fSwenxu } 88531aed46fSwenxu EXPORT_SYMBOL_GPL(br_vlan_get_proto); 88631aed46fSwenxu 887dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 888dcbdf135SVladimir Oltean struct netlink_ext_ack *extack) 889204177f3SToshiaki Makita { 89022ec19f3SDanielle Ratson struct switchdev_attr attr = { 89122ec19f3SDanielle Ratson .orig_dev = br->dev, 89222ec19f3SDanielle Ratson .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL, 89322ec19f3SDanielle Ratson .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 89422ec19f3SDanielle Ratson .u.vlan_protocol = ntohs(proto), 89522ec19f3SDanielle Ratson }; 896204177f3SToshiaki Makita int err = 0; 897204177f3SToshiaki Makita struct net_bridge_port *p; 8982594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 899907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 90022ec19f3SDanielle Ratson __be16 oldproto = br->vlan_proto; 901204177f3SToshiaki Makita 902204177f3SToshiaki Makita if (br->vlan_proto == proto) 903d2d427b3SToshiaki Makita return 0; 904204177f3SToshiaki Makita 905dcbdf135SVladimir Oltean err = switchdev_port_attr_set(br->dev, &attr, extack); 90622ec19f3SDanielle Ratson if (err && err != -EOPNOTSUPP) 90722ec19f3SDanielle Ratson return err; 90822ec19f3SDanielle Ratson 909204177f3SToshiaki Makita /* Add VLANs for the new proto to the device filter. */ 910204177f3SToshiaki Makita list_for_each_entry(p, &br->port_list, list) { 911907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 912907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) { 9132594e906SNikolay Aleksandrov err = vlan_vid_add(p->dev, proto, vlan->vid); 914204177f3SToshiaki Makita if (err) 915204177f3SToshiaki Makita goto err_filt; 916204177f3SToshiaki Makita } 917204177f3SToshiaki Makita } 918204177f3SToshiaki Makita 919204177f3SToshiaki Makita br->vlan_proto = proto; 920204177f3SToshiaki Makita 921204177f3SToshiaki Makita recalculate_group_addr(br); 922204177f3SToshiaki Makita br_recalculate_fwd_mask(br); 923204177f3SToshiaki Makita 924204177f3SToshiaki Makita /* Delete VLANs for the old proto from the device filter. */ 925907b1e6eSNikolay Aleksandrov list_for_each_entry(p, &br->port_list, list) { 926907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 927907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) 9282594e906SNikolay Aleksandrov vlan_vid_del(p->dev, oldproto, vlan->vid); 929907b1e6eSNikolay Aleksandrov } 930204177f3SToshiaki Makita 931d2d427b3SToshiaki Makita return 0; 932204177f3SToshiaki Makita 933204177f3SToshiaki Makita err_filt: 93422ec19f3SDanielle Ratson attr.u.vlan_protocol = ntohs(oldproto); 935dcbdf135SVladimir Oltean switchdev_port_attr_set(br->dev, &attr, NULL); 93622ec19f3SDanielle Ratson 937907b1e6eSNikolay Aleksandrov list_for_each_entry_continue_reverse(vlan, &vg->vlan_list, vlist) 9382594e906SNikolay Aleksandrov vlan_vid_del(p->dev, proto, vlan->vid); 939204177f3SToshiaki Makita 940907b1e6eSNikolay Aleksandrov list_for_each_entry_continue_reverse(p, &br->port_list, list) { 941907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 942907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) 9432594e906SNikolay Aleksandrov vlan_vid_del(p->dev, proto, vlan->vid); 944907b1e6eSNikolay Aleksandrov } 945204177f3SToshiaki Makita 946d2d427b3SToshiaki Makita return err; 947d2d427b3SToshiaki Makita } 948d2d427b3SToshiaki Makita 9499e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 9509e781401SVladimir Oltean struct netlink_ext_ack *extack) 951d2d427b3SToshiaki Makita { 952a98c0c47SMenglong Dong if (!eth_type_vlan(htons(val))) 953d2d427b3SToshiaki Makita return -EPROTONOSUPPORT; 954d2d427b3SToshiaki Makita 955dcbdf135SVladimir Oltean return __br_vlan_set_proto(br, htons(val), extack); 956204177f3SToshiaki Makita } 957204177f3SToshiaki Makita 9586dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val) 9596dada9b1SNikolay Aleksandrov { 9606dada9b1SNikolay Aleksandrov switch (val) { 9616dada9b1SNikolay Aleksandrov case 0: 9626dada9b1SNikolay Aleksandrov case 1: 963ae75767eSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_STATS_ENABLED, !!val); 9646dada9b1SNikolay Aleksandrov break; 9656dada9b1SNikolay Aleksandrov default: 9666dada9b1SNikolay Aleksandrov return -EINVAL; 9676dada9b1SNikolay Aleksandrov } 9686dada9b1SNikolay Aleksandrov 9696dada9b1SNikolay Aleksandrov return 0; 9706dada9b1SNikolay Aleksandrov } 9716dada9b1SNikolay Aleksandrov 9729163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val) 9739163a0fcSNikolay Aleksandrov { 9749163a0fcSNikolay Aleksandrov struct net_bridge_port *p; 9759163a0fcSNikolay Aleksandrov 9769163a0fcSNikolay Aleksandrov /* allow to change the option if there are no port vlans configured */ 9779163a0fcSNikolay Aleksandrov list_for_each_entry(p, &br->port_list, list) { 9789163a0fcSNikolay Aleksandrov struct net_bridge_vlan_group *vg = nbp_vlan_group(p); 9799163a0fcSNikolay Aleksandrov 9809163a0fcSNikolay Aleksandrov if (vg->num_vlans) 9819163a0fcSNikolay Aleksandrov return -EBUSY; 9829163a0fcSNikolay Aleksandrov } 9839163a0fcSNikolay Aleksandrov 9849163a0fcSNikolay Aleksandrov switch (val) { 9859163a0fcSNikolay Aleksandrov case 0: 9869163a0fcSNikolay Aleksandrov case 1: 9879163a0fcSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_STATS_PER_PORT, !!val); 9889163a0fcSNikolay Aleksandrov break; 9899163a0fcSNikolay Aleksandrov default: 9909163a0fcSNikolay Aleksandrov return -EINVAL; 9919163a0fcSNikolay Aleksandrov } 9929163a0fcSNikolay Aleksandrov 9939163a0fcSNikolay Aleksandrov return 0; 9949163a0fcSNikolay Aleksandrov } 9959163a0fcSNikolay Aleksandrov 99677751ee8SNikolay Aleksandrov static bool vlan_default_pvid(struct net_bridge_vlan_group *vg, u16 vid) 9975be5a2dfSVlad Yasevich { 9982594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 9992594e906SNikolay Aleksandrov 100077751ee8SNikolay Aleksandrov if (vid != vg->pvid) 10012594e906SNikolay Aleksandrov return false; 10022594e906SNikolay Aleksandrov 10032594e906SNikolay Aleksandrov v = br_vlan_lookup(&vg->vlan_hash, vid); 10042594e906SNikolay Aleksandrov if (v && br_vlan_should_use(v) && 10052594e906SNikolay Aleksandrov (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)) 10062594e906SNikolay Aleksandrov return true; 10072594e906SNikolay Aleksandrov 10082594e906SNikolay Aleksandrov return false; 10095be5a2dfSVlad Yasevich } 10105be5a2dfSVlad Yasevich 10115be5a2dfSVlad Yasevich static void br_vlan_disable_default_pvid(struct net_bridge *br) 10125be5a2dfSVlad Yasevich { 10135be5a2dfSVlad Yasevich struct net_bridge_port *p; 10145be5a2dfSVlad Yasevich u16 pvid = br->default_pvid; 10155be5a2dfSVlad Yasevich 10165be5a2dfSVlad Yasevich /* Disable default_pvid on all ports where it is still 10175be5a2dfSVlad Yasevich * configured. 10185be5a2dfSVlad Yasevich */ 1019f545923bSNikolay Aleksandrov if (vlan_default_pvid(br_vlan_group(br), pvid)) { 1020f545923bSNikolay Aleksandrov if (!br_vlan_delete(br, pvid)) 1021f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, pvid, 0, RTM_DELVLAN); 1022f545923bSNikolay Aleksandrov } 10235be5a2dfSVlad Yasevich 10245be5a2dfSVlad Yasevich list_for_each_entry(p, &br->port_list, list) { 1025f545923bSNikolay Aleksandrov if (vlan_default_pvid(nbp_vlan_group(p), pvid) && 1026f545923bSNikolay Aleksandrov !nbp_vlan_delete(p, pvid)) 1027f545923bSNikolay Aleksandrov br_vlan_notify(br, p, pvid, 0, RTM_DELVLAN); 10285be5a2dfSVlad Yasevich } 10295be5a2dfSVlad Yasevich 10305be5a2dfSVlad Yasevich br->default_pvid = 0; 10315be5a2dfSVlad Yasevich } 10325be5a2dfSVlad Yasevich 1033169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1034169327d5SPetr Machata struct netlink_ext_ack *extack) 10355be5a2dfSVlad Yasevich { 10362594e906SNikolay Aleksandrov const struct net_bridge_vlan *pvent; 1037907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 10385be5a2dfSVlad Yasevich struct net_bridge_port *p; 1039f418af63SNikolay Aleksandrov unsigned long *changed; 1040f418af63SNikolay Aleksandrov bool vlchange; 10415be5a2dfSVlad Yasevich u16 old_pvid; 10425be5a2dfSVlad Yasevich int err = 0; 10435be5a2dfSVlad Yasevich 10440f963b75SNikolay Aleksandrov if (!pvid) { 10450f963b75SNikolay Aleksandrov br_vlan_disable_default_pvid(br); 10460f963b75SNikolay Aleksandrov return 0; 10470f963b75SNikolay Aleksandrov } 10480f963b75SNikolay Aleksandrov 1049459479daSAndy Shevchenko changed = bitmap_zalloc(BR_MAX_PORTS, GFP_KERNEL); 10505be5a2dfSVlad Yasevich if (!changed) 10515be5a2dfSVlad Yasevich return -ENOMEM; 10525be5a2dfSVlad Yasevich 10535be5a2dfSVlad Yasevich old_pvid = br->default_pvid; 10545be5a2dfSVlad Yasevich 10555be5a2dfSVlad Yasevich /* Update default_pvid config only if we do not conflict with 10565be5a2dfSVlad Yasevich * user configuration. 10575be5a2dfSVlad Yasevich */ 1058907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 1059907b1e6eSNikolay Aleksandrov pvent = br_vlan_find(vg, pvid); 1060907b1e6eSNikolay Aleksandrov if ((!old_pvid || vlan_default_pvid(vg, old_pvid)) && 10612594e906SNikolay Aleksandrov (!pvent || !br_vlan_should_use(pvent))) { 10625be5a2dfSVlad Yasevich err = br_vlan_add(br, pvid, 10635be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 10642594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 1065f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, 1066169327d5SPetr Machata &vlchange, extack); 10675be5a2dfSVlad Yasevich if (err) 10685be5a2dfSVlad Yasevich goto out; 1069f545923bSNikolay Aleksandrov 1070f545923bSNikolay Aleksandrov if (br_vlan_delete(br, old_pvid)) 1071f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, old_pvid, 0, RTM_DELVLAN); 1072f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, pvid, 0, RTM_NEWVLAN); 1073442b03c3SXin Long __set_bit(0, changed); 10745be5a2dfSVlad Yasevich } 10755be5a2dfSVlad Yasevich 10765be5a2dfSVlad Yasevich list_for_each_entry(p, &br->port_list, list) { 10775be5a2dfSVlad Yasevich /* Update default_pvid config only if we do not conflict with 10785be5a2dfSVlad Yasevich * user configuration. 10795be5a2dfSVlad Yasevich */ 1080907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 10815be5a2dfSVlad Yasevich if ((old_pvid && 1082907b1e6eSNikolay Aleksandrov !vlan_default_pvid(vg, old_pvid)) || 1083907b1e6eSNikolay Aleksandrov br_vlan_find(vg, pvid)) 10845be5a2dfSVlad Yasevich continue; 10855be5a2dfSVlad Yasevich 10865be5a2dfSVlad Yasevich err = nbp_vlan_add(p, pvid, 10875be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 1088f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 1089169327d5SPetr Machata &vlchange, extack); 10905be5a2dfSVlad Yasevich if (err) 10915be5a2dfSVlad Yasevich goto err_port; 1092f545923bSNikolay Aleksandrov if (nbp_vlan_delete(p, old_pvid)) 1093f545923bSNikolay Aleksandrov br_vlan_notify(br, p, old_pvid, 0, RTM_DELVLAN); 1094f545923bSNikolay Aleksandrov br_vlan_notify(p->br, p, pvid, 0, RTM_NEWVLAN); 1095442b03c3SXin Long __set_bit(p->port_no, changed); 10965be5a2dfSVlad Yasevich } 10975be5a2dfSVlad Yasevich 10985be5a2dfSVlad Yasevich br->default_pvid = pvid; 10995be5a2dfSVlad Yasevich 11005be5a2dfSVlad Yasevich out: 1101459479daSAndy Shevchenko bitmap_free(changed); 11025be5a2dfSVlad Yasevich return err; 11035be5a2dfSVlad Yasevich 11045be5a2dfSVlad Yasevich err_port: 11055be5a2dfSVlad Yasevich list_for_each_entry_continue_reverse(p, &br->port_list, list) { 11065be5a2dfSVlad Yasevich if (!test_bit(p->port_no, changed)) 11075be5a2dfSVlad Yasevich continue; 11085be5a2dfSVlad Yasevich 1109f545923bSNikolay Aleksandrov if (old_pvid) { 11105be5a2dfSVlad Yasevich nbp_vlan_add(p, old_pvid, 11115be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 1112f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 1113169327d5SPetr Machata &vlchange, NULL); 1114f545923bSNikolay Aleksandrov br_vlan_notify(p->br, p, old_pvid, 0, RTM_NEWVLAN); 1115f545923bSNikolay Aleksandrov } 11165be5a2dfSVlad Yasevich nbp_vlan_delete(p, pvid); 1117f545923bSNikolay Aleksandrov br_vlan_notify(br, p, pvid, 0, RTM_DELVLAN); 11185be5a2dfSVlad Yasevich } 11195be5a2dfSVlad Yasevich 11205be5a2dfSVlad Yasevich if (test_bit(0, changed)) { 1121f545923bSNikolay Aleksandrov if (old_pvid) { 11225be5a2dfSVlad Yasevich br_vlan_add(br, old_pvid, 11235be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 11242594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 1125f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, 1126169327d5SPetr Machata &vlchange, NULL); 1127f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, old_pvid, 0, RTM_NEWVLAN); 1128f545923bSNikolay Aleksandrov } 11295be5a2dfSVlad Yasevich br_vlan_delete(br, pvid); 1130f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, pvid, 0, RTM_DELVLAN); 11315be5a2dfSVlad Yasevich } 11325be5a2dfSVlad Yasevich goto out; 11335be5a2dfSVlad Yasevich } 11345be5a2dfSVlad Yasevich 11359e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 11369e781401SVladimir Oltean struct netlink_ext_ack *extack) 113796a20d9dSVlad Yasevich { 113896a20d9dSVlad Yasevich u16 pvid = val; 113996a20d9dSVlad Yasevich int err = 0; 114096a20d9dSVlad Yasevich 11415be5a2dfSVlad Yasevich if (val >= VLAN_VID_MASK) 114296a20d9dSVlad Yasevich return -EINVAL; 114396a20d9dSVlad Yasevich 114496a20d9dSVlad Yasevich if (pvid == br->default_pvid) 1145047831a9SXin Long goto out; 114696a20d9dSVlad Yasevich 114796a20d9dSVlad Yasevich /* Only allow default pvid change when filtering is disabled */ 1148ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_ENABLED)) { 114996a20d9dSVlad Yasevich pr_info_once("Please disable vlan filtering to change default_pvid\n"); 115096a20d9dSVlad Yasevich err = -EPERM; 1151047831a9SXin Long goto out; 115296a20d9dSVlad Yasevich } 11539e781401SVladimir Oltean err = __br_vlan_set_default_pvid(br, pvid, extack); 1154047831a9SXin Long out: 115596a20d9dSVlad Yasevich return err; 115696a20d9dSVlad Yasevich } 115796a20d9dSVlad Yasevich 11585be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br) 11598580e211SToshiaki Makita { 1160907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 11612594e906SNikolay Aleksandrov int ret = -ENOMEM; 11622594e906SNikolay Aleksandrov 1163907b1e6eSNikolay Aleksandrov vg = kzalloc(sizeof(*vg), GFP_KERNEL); 1164907b1e6eSNikolay Aleksandrov if (!vg) 11652594e906SNikolay Aleksandrov goto out; 1166907b1e6eSNikolay Aleksandrov ret = rhashtable_init(&vg->vlan_hash, &br_vlan_rht_params); 11672594e906SNikolay Aleksandrov if (ret) 11682594e906SNikolay Aleksandrov goto err_rhtbl; 1169efa5356bSRoopa Prabhu ret = vlan_tunnel_init(vg); 1170efa5356bSRoopa Prabhu if (ret) 1171efa5356bSRoopa Prabhu goto err_tunnel_init; 1172907b1e6eSNikolay Aleksandrov INIT_LIST_HEAD(&vg->vlan_list); 11738580e211SToshiaki Makita br->vlan_proto = htons(ETH_P_8021Q); 117496a20d9dSVlad Yasevich br->default_pvid = 1; 1175907b1e6eSNikolay Aleksandrov rcu_assign_pointer(br->vlgrp, vg); 11762594e906SNikolay Aleksandrov 11772594e906SNikolay Aleksandrov out: 11782594e906SNikolay Aleksandrov return ret; 11792594e906SNikolay Aleksandrov 1180efa5356bSRoopa Prabhu err_tunnel_init: 1181907b1e6eSNikolay Aleksandrov rhashtable_destroy(&vg->vlan_hash); 11822594e906SNikolay Aleksandrov err_rhtbl: 1183907b1e6eSNikolay Aleksandrov kfree(vg); 11842594e906SNikolay Aleksandrov 11852594e906SNikolay Aleksandrov goto out; 11862594e906SNikolay Aleksandrov } 11872594e906SNikolay Aleksandrov 1188169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *p, struct netlink_ext_ack *extack) 11892594e906SNikolay Aleksandrov { 1190404cdbf0SElad Raz struct switchdev_attr attr = { 1191404cdbf0SElad Raz .orig_dev = p->br->dev, 1192404cdbf0SElad Raz .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, 1193404cdbf0SElad Raz .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 1194ae75767eSNikolay Aleksandrov .u.vlan_filtering = br_opt_get(p->br, BROPT_VLAN_ENABLED), 1195404cdbf0SElad Raz }; 1196263344e6SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 11972594e906SNikolay Aleksandrov int ret = -ENOMEM; 11982594e906SNikolay Aleksandrov 1199263344e6SNikolay Aleksandrov vg = kzalloc(sizeof(struct net_bridge_vlan_group), GFP_KERNEL); 1200263344e6SNikolay Aleksandrov if (!vg) 12012594e906SNikolay Aleksandrov goto out; 12022594e906SNikolay Aleksandrov 1203dcbdf135SVladimir Oltean ret = switchdev_port_attr_set(p->dev, &attr, extack); 1204404cdbf0SElad Raz if (ret && ret != -EOPNOTSUPP) 1205404cdbf0SElad Raz goto err_vlan_enabled; 1206404cdbf0SElad Raz 1207263344e6SNikolay Aleksandrov ret = rhashtable_init(&vg->vlan_hash, &br_vlan_rht_params); 12082594e906SNikolay Aleksandrov if (ret) 12092594e906SNikolay Aleksandrov goto err_rhtbl; 1210efa5356bSRoopa Prabhu ret = vlan_tunnel_init(vg); 1211efa5356bSRoopa Prabhu if (ret) 1212efa5356bSRoopa Prabhu goto err_tunnel_init; 1213263344e6SNikolay Aleksandrov INIT_LIST_HEAD(&vg->vlan_list); 1214907b1e6eSNikolay Aleksandrov rcu_assign_pointer(p->vlgrp, vg); 12152594e906SNikolay Aleksandrov if (p->br->default_pvid) { 1216f418af63SNikolay Aleksandrov bool changed; 1217f418af63SNikolay Aleksandrov 12182594e906SNikolay Aleksandrov ret = nbp_vlan_add(p, p->br->default_pvid, 12192594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_PVID | 1220f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 1221169327d5SPetr Machata &changed, extack); 12222594e906SNikolay Aleksandrov if (ret) 12232594e906SNikolay Aleksandrov goto err_vlan_add; 1224f545923bSNikolay Aleksandrov br_vlan_notify(p->br, p, p->br->default_pvid, 0, RTM_NEWVLAN); 12252594e906SNikolay Aleksandrov } 12262594e906SNikolay Aleksandrov out: 12272594e906SNikolay Aleksandrov return ret; 12282594e906SNikolay Aleksandrov 12292594e906SNikolay Aleksandrov err_vlan_add: 123007bc588fSIdo Schimmel RCU_INIT_POINTER(p->vlgrp, NULL); 123107bc588fSIdo Schimmel synchronize_rcu(); 1232efa5356bSRoopa Prabhu vlan_tunnel_deinit(vg); 1233efa5356bSRoopa Prabhu err_tunnel_init: 1234efa5356bSRoopa Prabhu rhashtable_destroy(&vg->vlan_hash); 12352594e906SNikolay Aleksandrov err_rhtbl: 1236df2c4334SYotam Gigi err_vlan_enabled: 1237263344e6SNikolay Aleksandrov kfree(vg); 12382594e906SNikolay Aleksandrov 12392594e906SNikolay Aleksandrov goto out; 12408580e211SToshiaki Makita } 12418580e211SToshiaki Makita 12428adff41cSToshiaki Makita /* Must be protected by RTNL. 12438adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 1244f418af63SNikolay Aleksandrov * changed must be true only if the vlan was created or updated 12458adff41cSToshiaki Makita */ 1246f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1247169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1248243a2e63SVlad Yasevich { 12492594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 12502594e906SNikolay Aleksandrov int ret; 1251243a2e63SVlad Yasevich 1252243a2e63SVlad Yasevich ASSERT_RTNL(); 1253243a2e63SVlad Yasevich 1254f418af63SNikolay Aleksandrov *changed = false; 1255907b1e6eSNikolay Aleksandrov vlan = br_vlan_find(nbp_vlan_group(port), vid); 12562594e906SNikolay Aleksandrov if (vlan) { 12577fbac984SIdo Schimmel /* Pass the flags to the hardware bridge */ 1258169327d5SPetr Machata ret = br_switchdev_port_vlan_add(port->dev, vid, flags, extack); 12597fbac984SIdo Schimmel if (ret && ret != -EOPNOTSUPP) 12607fbac984SIdo Schimmel return ret; 1261f418af63SNikolay Aleksandrov *changed = __vlan_add_flags(vlan, flags); 1262f418af63SNikolay Aleksandrov 12632594e906SNikolay Aleksandrov return 0; 1264243a2e63SVlad Yasevich } 1265243a2e63SVlad Yasevich 12662594e906SNikolay Aleksandrov vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); 12672594e906SNikolay Aleksandrov if (!vlan) 12682594e906SNikolay Aleksandrov return -ENOMEM; 1269243a2e63SVlad Yasevich 12702594e906SNikolay Aleksandrov vlan->vid = vid; 12712594e906SNikolay Aleksandrov vlan->port = port; 1272169327d5SPetr Machata ret = __vlan_add(vlan, flags, extack); 12732594e906SNikolay Aleksandrov if (ret) 12742594e906SNikolay Aleksandrov kfree(vlan); 1275f418af63SNikolay Aleksandrov else 1276f418af63SNikolay Aleksandrov *changed = true; 1277243a2e63SVlad Yasevich 12782594e906SNikolay Aleksandrov return ret; 1279243a2e63SVlad Yasevich } 1280243a2e63SVlad Yasevich 12818adff41cSToshiaki Makita /* Must be protected by RTNL. 12828adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 12838adff41cSToshiaki Makita */ 1284243a2e63SVlad Yasevich int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1285243a2e63SVlad Yasevich { 12862594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 1287243a2e63SVlad Yasevich 1288243a2e63SVlad Yasevich ASSERT_RTNL(); 1289243a2e63SVlad Yasevich 1290907b1e6eSNikolay Aleksandrov v = br_vlan_find(nbp_vlan_group(port), vid); 12912594e906SNikolay Aleksandrov if (!v) 12922594e906SNikolay Aleksandrov return -ENOENT; 1293424bb9c9SToshiaki Makita br_fdb_find_delete_local(port->br, port, port->dev->dev_addr, vid); 12941ea2d020SNikolay Aleksandrov br_fdb_delete_by_port(port->br, port, vid, 0); 1295bc9a25d2SVlad Yasevich 12962594e906SNikolay Aleksandrov return __vlan_del(v); 1297243a2e63SVlad Yasevich } 1298243a2e63SVlad Yasevich 1299243a2e63SVlad Yasevich void nbp_vlan_flush(struct net_bridge_port *port) 1300243a2e63SVlad Yasevich { 1301f409d0edSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 1302f409d0edSNikolay Aleksandrov 1303243a2e63SVlad Yasevich ASSERT_RTNL(); 1304243a2e63SVlad Yasevich 1305f409d0edSNikolay Aleksandrov vg = nbp_vlan_group(port); 1306f545923bSNikolay Aleksandrov __vlan_flush(port->br, port, vg); 1307f409d0edSNikolay Aleksandrov RCU_INIT_POINTER(port->vlgrp, NULL); 1308f409d0edSNikolay Aleksandrov synchronize_rcu(); 1309f409d0edSNikolay Aleksandrov __vlan_group_free(vg); 13105be5a2dfSVlad Yasevich } 1311a60c0903SNikolay Aleksandrov 1312a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1313281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1314a60c0903SNikolay Aleksandrov { 1315a60c0903SNikolay Aleksandrov int i; 1316a60c0903SNikolay Aleksandrov 1317a60c0903SNikolay Aleksandrov memset(stats, 0, sizeof(*stats)); 1318a60c0903SNikolay Aleksandrov for_each_possible_cpu(i) { 1319a60c0903SNikolay Aleksandrov u64 rxpackets, rxbytes, txpackets, txbytes; 1320281cc284SHeiner Kallweit struct pcpu_sw_netstats *cpu_stats; 1321a60c0903SNikolay Aleksandrov unsigned int start; 1322a60c0903SNikolay Aleksandrov 1323a60c0903SNikolay Aleksandrov cpu_stats = per_cpu_ptr(v->stats, i); 1324a60c0903SNikolay Aleksandrov do { 1325a60c0903SNikolay Aleksandrov start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); 1326a60c0903SNikolay Aleksandrov rxpackets = cpu_stats->rx_packets; 1327a60c0903SNikolay Aleksandrov rxbytes = cpu_stats->rx_bytes; 1328a60c0903SNikolay Aleksandrov txbytes = cpu_stats->tx_bytes; 1329a60c0903SNikolay Aleksandrov txpackets = cpu_stats->tx_packets; 1330a60c0903SNikolay Aleksandrov } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); 1331a60c0903SNikolay Aleksandrov 1332a60c0903SNikolay Aleksandrov stats->rx_packets += rxpackets; 1333a60c0903SNikolay Aleksandrov stats->rx_bytes += rxbytes; 1334a60c0903SNikolay Aleksandrov stats->tx_bytes += txbytes; 1335a60c0903SNikolay Aleksandrov stats->tx_packets += txpackets; 1336a60c0903SNikolay Aleksandrov } 1337a60c0903SNikolay Aleksandrov } 13384d4fd361SPetr Machata 133999f62a74SVladimir Oltean int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid) 13404d4fd361SPetr Machata { 13414d4fd361SPetr Machata struct net_bridge_vlan_group *vg; 134299f62a74SVladimir Oltean struct net_bridge_port *p; 13434d4fd361SPetr Machata 134499f62a74SVladimir Oltean ASSERT_RTNL(); 134599f62a74SVladimir Oltean p = br_port_get_check_rtnl(dev); 13465a6db04cSIdo Schimmel if (p) 13475a6db04cSIdo Schimmel vg = nbp_vlan_group(p); 13485a6db04cSIdo Schimmel else if (netif_is_bridge_master(dev)) 13494d4fd361SPetr Machata vg = br_vlan_group(netdev_priv(dev)); 13504d4fd361SPetr Machata else 13514d4fd361SPetr Machata return -EINVAL; 13524d4fd361SPetr Machata 13534d4fd361SPetr Machata *p_pvid = br_get_pvid(vg); 13544d4fd361SPetr Machata return 0; 13554d4fd361SPetr Machata } 13564d4fd361SPetr Machata EXPORT_SYMBOL_GPL(br_vlan_get_pvid); 13574d4fd361SPetr Machata 13587582f5b7SPablo Neira Ayuso int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid) 13597582f5b7SPablo Neira Ayuso { 136099f62a74SVladimir Oltean struct net_bridge_vlan_group *vg; 136199f62a74SVladimir Oltean struct net_bridge_port *p; 136299f62a74SVladimir Oltean 136399f62a74SVladimir Oltean p = br_port_get_check_rcu(dev); 136499f62a74SVladimir Oltean if (p) 136599f62a74SVladimir Oltean vg = nbp_vlan_group_rcu(p); 136699f62a74SVladimir Oltean else if (netif_is_bridge_master(dev)) 136799f62a74SVladimir Oltean vg = br_vlan_group_rcu(netdev_priv(dev)); 136899f62a74SVladimir Oltean else 136999f62a74SVladimir Oltean return -EINVAL; 137099f62a74SVladimir Oltean 137199f62a74SVladimir Oltean *p_pvid = br_get_pvid(vg); 137299f62a74SVladimir Oltean return 0; 13737582f5b7SPablo Neira Ayuso } 13747582f5b7SPablo Neira Ayuso EXPORT_SYMBOL_GPL(br_vlan_get_pvid_rcu); 13757582f5b7SPablo Neira Ayuso 1376bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1377bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1378bcf2766bSFelix Fietkau struct net_device_path *path) 1379bcf2766bSFelix Fietkau { 1380bcf2766bSFelix Fietkau struct net_bridge_vlan_group *vg; 1381bcf2766bSFelix Fietkau int idx = ctx->num_vlans - 1; 1382bcf2766bSFelix Fietkau u16 vid; 1383bcf2766bSFelix Fietkau 1384bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_KEEP; 1385bcf2766bSFelix Fietkau 1386bcf2766bSFelix Fietkau if (!br_opt_get(br, BROPT_VLAN_ENABLED)) 1387bcf2766bSFelix Fietkau return; 1388bcf2766bSFelix Fietkau 1389bcf2766bSFelix Fietkau vg = br_vlan_group(br); 1390bcf2766bSFelix Fietkau 1391bcf2766bSFelix Fietkau if (idx >= 0 && 1392bcf2766bSFelix Fietkau ctx->vlan[idx].proto == br->vlan_proto) { 1393bcf2766bSFelix Fietkau vid = ctx->vlan[idx].id; 1394bcf2766bSFelix Fietkau } else { 1395bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_TAG; 1396bcf2766bSFelix Fietkau vid = br_get_pvid(vg); 1397bcf2766bSFelix Fietkau } 1398bcf2766bSFelix Fietkau 1399bcf2766bSFelix Fietkau path->bridge.vlan_id = vid; 1400bcf2766bSFelix Fietkau path->bridge.vlan_proto = br->vlan_proto; 1401bcf2766bSFelix Fietkau } 1402bcf2766bSFelix Fietkau 1403bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1404bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1405bcf2766bSFelix Fietkau struct net_device_path *path) 1406bcf2766bSFelix Fietkau { 1407bcf2766bSFelix Fietkau struct net_bridge_vlan_group *vg; 1408bcf2766bSFelix Fietkau struct net_bridge_vlan *v; 1409bcf2766bSFelix Fietkau 1410bcf2766bSFelix Fietkau if (!br_opt_get(br, BROPT_VLAN_ENABLED)) 1411bcf2766bSFelix Fietkau return 0; 1412bcf2766bSFelix Fietkau 1413bcf2766bSFelix Fietkau vg = nbp_vlan_group_rcu(dst); 1414bcf2766bSFelix Fietkau v = br_vlan_find(vg, path->bridge.vlan_id); 1415bcf2766bSFelix Fietkau if (!v || !br_vlan_should_use(v)) 1416bcf2766bSFelix Fietkau return -EINVAL; 1417bcf2766bSFelix Fietkau 1418bcf2766bSFelix Fietkau if (!(v->flags & BRIDGE_VLAN_INFO_UNTAGGED)) 1419bcf2766bSFelix Fietkau return 0; 1420bcf2766bSFelix Fietkau 1421bcf2766bSFelix Fietkau if (path->bridge.vlan_mode == DEV_PATH_BR_VLAN_TAG) 1422bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_KEEP; 142326267bf9SFelix Fietkau else if (v->priv_flags & BR_VLFLAG_ADDED_BY_SWITCHDEV) 142426267bf9SFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_UNTAG_HW; 1425bcf2766bSFelix Fietkau else 1426bcf2766bSFelix Fietkau path->bridge.vlan_mode = DEV_PATH_BR_VLAN_UNTAG; 1427bcf2766bSFelix Fietkau 1428bcf2766bSFelix Fietkau return 0; 1429bcf2766bSFelix Fietkau } 1430bcf2766bSFelix Fietkau 14314d4fd361SPetr Machata int br_vlan_get_info(const struct net_device *dev, u16 vid, 14324d4fd361SPetr Machata struct bridge_vlan_info *p_vinfo) 14334d4fd361SPetr Machata { 14344d4fd361SPetr Machata struct net_bridge_vlan_group *vg; 14354d4fd361SPetr Machata struct net_bridge_vlan *v; 14364d4fd361SPetr Machata struct net_bridge_port *p; 14374d4fd361SPetr Machata 14384d4fd361SPetr Machata ASSERT_RTNL(); 14394d4fd361SPetr Machata p = br_port_get_check_rtnl(dev); 14404d4fd361SPetr Machata if (p) 14414d4fd361SPetr Machata vg = nbp_vlan_group(p); 14422b18d79eSPetr Machata else if (netif_is_bridge_master(dev)) 14432b18d79eSPetr Machata vg = br_vlan_group(netdev_priv(dev)); 14444d4fd361SPetr Machata else 14454d4fd361SPetr Machata return -EINVAL; 14464d4fd361SPetr Machata 14474d4fd361SPetr Machata v = br_vlan_find(vg, vid); 14484d4fd361SPetr Machata if (!v) 14494d4fd361SPetr Machata return -ENOENT; 14504d4fd361SPetr Machata 14514d4fd361SPetr Machata p_vinfo->vid = vid; 14524d4fd361SPetr Machata p_vinfo->flags = v->flags; 1453f40d9b20SVladimir Oltean if (vid == br_get_pvid(vg)) 1454f40d9b20SVladimir Oltean p_vinfo->flags |= BRIDGE_VLAN_INFO_PVID; 14554d4fd361SPetr Machata return 0; 14564d4fd361SPetr Machata } 14574d4fd361SPetr Machata EXPORT_SYMBOL_GPL(br_vlan_get_info); 14589c0ec2e7SMike Manning 1459ee80dd2eSVladimir Oltean int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid, 1460ee80dd2eSVladimir Oltean struct bridge_vlan_info *p_vinfo) 1461ee80dd2eSVladimir Oltean { 1462ee80dd2eSVladimir Oltean struct net_bridge_vlan_group *vg; 1463ee80dd2eSVladimir Oltean struct net_bridge_vlan *v; 1464ee80dd2eSVladimir Oltean struct net_bridge_port *p; 1465ee80dd2eSVladimir Oltean 1466ee80dd2eSVladimir Oltean p = br_port_get_check_rcu(dev); 1467ee80dd2eSVladimir Oltean if (p) 1468ee80dd2eSVladimir Oltean vg = nbp_vlan_group_rcu(p); 1469ee80dd2eSVladimir Oltean else if (netif_is_bridge_master(dev)) 1470ee80dd2eSVladimir Oltean vg = br_vlan_group_rcu(netdev_priv(dev)); 1471ee80dd2eSVladimir Oltean else 1472ee80dd2eSVladimir Oltean return -EINVAL; 1473ee80dd2eSVladimir Oltean 1474ee80dd2eSVladimir Oltean v = br_vlan_find(vg, vid); 1475ee80dd2eSVladimir Oltean if (!v) 1476ee80dd2eSVladimir Oltean return -ENOENT; 1477ee80dd2eSVladimir Oltean 1478ee80dd2eSVladimir Oltean p_vinfo->vid = vid; 1479ee80dd2eSVladimir Oltean p_vinfo->flags = v->flags; 1480ee80dd2eSVladimir Oltean if (vid == br_get_pvid(vg)) 1481ee80dd2eSVladimir Oltean p_vinfo->flags |= BRIDGE_VLAN_INFO_PVID; 1482ee80dd2eSVladimir Oltean return 0; 1483ee80dd2eSVladimir Oltean } 1484ee80dd2eSVladimir Oltean EXPORT_SYMBOL_GPL(br_vlan_get_info_rcu); 1485ee80dd2eSVladimir Oltean 14869c0ec2e7SMike Manning static int br_vlan_is_bind_vlan_dev(const struct net_device *dev) 14879c0ec2e7SMike Manning { 14889c0ec2e7SMike Manning return is_vlan_dev(dev) && 14899c0ec2e7SMike Manning !!(vlan_dev_priv(dev)->flags & VLAN_FLAG_BRIDGE_BINDING); 14909c0ec2e7SMike Manning } 14919c0ec2e7SMike Manning 14929c0ec2e7SMike Manning static int br_vlan_is_bind_vlan_dev_fn(struct net_device *dev, 1493eff74233STaehee Yoo __always_unused struct netdev_nested_priv *priv) 14949c0ec2e7SMike Manning { 14959c0ec2e7SMike Manning return br_vlan_is_bind_vlan_dev(dev); 14969c0ec2e7SMike Manning } 14979c0ec2e7SMike Manning 14989c0ec2e7SMike Manning static bool br_vlan_has_upper_bind_vlan_dev(struct net_device *dev) 14999c0ec2e7SMike Manning { 15009c0ec2e7SMike Manning int found; 15019c0ec2e7SMike Manning 15029c0ec2e7SMike Manning rcu_read_lock(); 15039c0ec2e7SMike Manning found = netdev_walk_all_upper_dev_rcu(dev, br_vlan_is_bind_vlan_dev_fn, 15049c0ec2e7SMike Manning NULL); 15059c0ec2e7SMike Manning rcu_read_unlock(); 15069c0ec2e7SMike Manning 15079c0ec2e7SMike Manning return !!found; 15089c0ec2e7SMike Manning } 15099c0ec2e7SMike Manning 15109c0ec2e7SMike Manning struct br_vlan_bind_walk_data { 15119c0ec2e7SMike Manning u16 vid; 15129c0ec2e7SMike Manning struct net_device *result; 15139c0ec2e7SMike Manning }; 15149c0ec2e7SMike Manning 15159c0ec2e7SMike Manning static int br_vlan_match_bind_vlan_dev_fn(struct net_device *dev, 1516eff74233STaehee Yoo struct netdev_nested_priv *priv) 15179c0ec2e7SMike Manning { 1518eff74233STaehee Yoo struct br_vlan_bind_walk_data *data = priv->data; 15199c0ec2e7SMike Manning int found = 0; 15209c0ec2e7SMike Manning 15219c0ec2e7SMike Manning if (br_vlan_is_bind_vlan_dev(dev) && 15229c0ec2e7SMike Manning vlan_dev_priv(dev)->vlan_id == data->vid) { 15239c0ec2e7SMike Manning data->result = dev; 15249c0ec2e7SMike Manning found = 1; 15259c0ec2e7SMike Manning } 15269c0ec2e7SMike Manning 15279c0ec2e7SMike Manning return found; 15289c0ec2e7SMike Manning } 15299c0ec2e7SMike Manning 15309c0ec2e7SMike Manning static struct net_device * 15319c0ec2e7SMike Manning br_vlan_get_upper_bind_vlan_dev(struct net_device *dev, u16 vid) 15329c0ec2e7SMike Manning { 15339c0ec2e7SMike Manning struct br_vlan_bind_walk_data data = { 15349c0ec2e7SMike Manning .vid = vid, 15359c0ec2e7SMike Manning }; 1536eff74233STaehee Yoo struct netdev_nested_priv priv = { 1537eff74233STaehee Yoo .data = (void *)&data, 1538eff74233STaehee Yoo }; 15399c0ec2e7SMike Manning 15409c0ec2e7SMike Manning rcu_read_lock(); 15419c0ec2e7SMike Manning netdev_walk_all_upper_dev_rcu(dev, br_vlan_match_bind_vlan_dev_fn, 1542eff74233STaehee Yoo &priv); 15439c0ec2e7SMike Manning rcu_read_unlock(); 15449c0ec2e7SMike Manning 15459c0ec2e7SMike Manning return data.result; 15469c0ec2e7SMike Manning } 15479c0ec2e7SMike Manning 15489c0ec2e7SMike Manning static bool br_vlan_is_dev_up(const struct net_device *dev) 15499c0ec2e7SMike Manning { 15509c0ec2e7SMike Manning return !!(dev->flags & IFF_UP) && netif_oper_up(dev); 15519c0ec2e7SMike Manning } 15529c0ec2e7SMike Manning 15539c0ec2e7SMike Manning static void br_vlan_set_vlan_dev_state(const struct net_bridge *br, 15549c0ec2e7SMike Manning struct net_device *vlan_dev) 15559c0ec2e7SMike Manning { 15569c0ec2e7SMike Manning u16 vid = vlan_dev_priv(vlan_dev)->vlan_id; 15579c0ec2e7SMike Manning struct net_bridge_vlan_group *vg; 15589c0ec2e7SMike Manning struct net_bridge_port *p; 15599c0ec2e7SMike Manning bool has_carrier = false; 15609c0ec2e7SMike Manning 15618e1acd4fSMike Manning if (!netif_carrier_ok(br->dev)) { 15628e1acd4fSMike Manning netif_carrier_off(vlan_dev); 15638e1acd4fSMike Manning return; 15648e1acd4fSMike Manning } 15658e1acd4fSMike Manning 15669c0ec2e7SMike Manning list_for_each_entry(p, &br->port_list, list) { 15679c0ec2e7SMike Manning vg = nbp_vlan_group(p); 15689c0ec2e7SMike Manning if (br_vlan_find(vg, vid) && br_vlan_is_dev_up(p->dev)) { 15699c0ec2e7SMike Manning has_carrier = true; 15709c0ec2e7SMike Manning break; 15719c0ec2e7SMike Manning } 15729c0ec2e7SMike Manning } 15739c0ec2e7SMike Manning 15749c0ec2e7SMike Manning if (has_carrier) 15759c0ec2e7SMike Manning netif_carrier_on(vlan_dev); 15769c0ec2e7SMike Manning else 15779c0ec2e7SMike Manning netif_carrier_off(vlan_dev); 15789c0ec2e7SMike Manning } 15799c0ec2e7SMike Manning 15809c0ec2e7SMike Manning static void br_vlan_set_all_vlan_dev_state(struct net_bridge_port *p) 15819c0ec2e7SMike Manning { 15829c0ec2e7SMike Manning struct net_bridge_vlan_group *vg = nbp_vlan_group(p); 15839c0ec2e7SMike Manning struct net_bridge_vlan *vlan; 15849c0ec2e7SMike Manning struct net_device *vlan_dev; 15859c0ec2e7SMike Manning 15869c0ec2e7SMike Manning list_for_each_entry(vlan, &vg->vlan_list, vlist) { 15879c0ec2e7SMike Manning vlan_dev = br_vlan_get_upper_bind_vlan_dev(p->br->dev, 15889c0ec2e7SMike Manning vlan->vid); 15899c0ec2e7SMike Manning if (vlan_dev) { 15908e1acd4fSMike Manning if (br_vlan_is_dev_up(p->dev)) { 15918e1acd4fSMike Manning if (netif_carrier_ok(p->br->dev)) 15929c0ec2e7SMike Manning netif_carrier_on(vlan_dev); 15938e1acd4fSMike Manning } else { 15949c0ec2e7SMike Manning br_vlan_set_vlan_dev_state(p->br, vlan_dev); 15959c0ec2e7SMike Manning } 15969c0ec2e7SMike Manning } 15979c0ec2e7SMike Manning } 15988e1acd4fSMike Manning } 15999c0ec2e7SMike Manning 16009c0ec2e7SMike Manning static void br_vlan_upper_change(struct net_device *dev, 16019c0ec2e7SMike Manning struct net_device *upper_dev, 16029c0ec2e7SMike Manning bool linking) 16039c0ec2e7SMike Manning { 16049c0ec2e7SMike Manning struct net_bridge *br = netdev_priv(dev); 16059c0ec2e7SMike Manning 16069c0ec2e7SMike Manning if (!br_vlan_is_bind_vlan_dev(upper_dev)) 16079c0ec2e7SMike Manning return; 16089c0ec2e7SMike Manning 16099c0ec2e7SMike Manning if (linking) { 16109c0ec2e7SMike Manning br_vlan_set_vlan_dev_state(br, upper_dev); 16119c0ec2e7SMike Manning br_opt_toggle(br, BROPT_VLAN_BRIDGE_BINDING, true); 16129c0ec2e7SMike Manning } else { 16139c0ec2e7SMike Manning br_opt_toggle(br, BROPT_VLAN_BRIDGE_BINDING, 16149c0ec2e7SMike Manning br_vlan_has_upper_bind_vlan_dev(dev)); 16159c0ec2e7SMike Manning } 16169c0ec2e7SMike Manning } 16179c0ec2e7SMike Manning 16188e1acd4fSMike Manning struct br_vlan_link_state_walk_data { 16198e1acd4fSMike Manning struct net_bridge *br; 16208e1acd4fSMike Manning }; 16218e1acd4fSMike Manning 16228e1acd4fSMike Manning static int br_vlan_link_state_change_fn(struct net_device *vlan_dev, 1623eff74233STaehee Yoo struct netdev_nested_priv *priv) 16248e1acd4fSMike Manning { 1625eff74233STaehee Yoo struct br_vlan_link_state_walk_data *data = priv->data; 16268e1acd4fSMike Manning 16278e1acd4fSMike Manning if (br_vlan_is_bind_vlan_dev(vlan_dev)) 16288e1acd4fSMike Manning br_vlan_set_vlan_dev_state(data->br, vlan_dev); 16298e1acd4fSMike Manning 16308e1acd4fSMike Manning return 0; 16318e1acd4fSMike Manning } 16328e1acd4fSMike Manning 16338e1acd4fSMike Manning static void br_vlan_link_state_change(struct net_device *dev, 16348e1acd4fSMike Manning struct net_bridge *br) 16358e1acd4fSMike Manning { 16368e1acd4fSMike Manning struct br_vlan_link_state_walk_data data = { 16378e1acd4fSMike Manning .br = br 16388e1acd4fSMike Manning }; 1639eff74233STaehee Yoo struct netdev_nested_priv priv = { 1640eff74233STaehee Yoo .data = (void *)&data, 1641eff74233STaehee Yoo }; 16428e1acd4fSMike Manning 16438e1acd4fSMike Manning rcu_read_lock(); 16448e1acd4fSMike Manning netdev_walk_all_upper_dev_rcu(dev, br_vlan_link_state_change_fn, 1645eff74233STaehee Yoo &priv); 16468e1acd4fSMike Manning rcu_read_unlock(); 16478e1acd4fSMike Manning } 16488e1acd4fSMike Manning 16499c0ec2e7SMike Manning /* Must be protected by RTNL. */ 165080900acdSMike Manning static void nbp_vlan_set_vlan_dev_state(struct net_bridge_port *p, u16 vid) 165180900acdSMike Manning { 165280900acdSMike Manning struct net_device *vlan_dev; 165380900acdSMike Manning 165480900acdSMike Manning if (!br_opt_get(p->br, BROPT_VLAN_BRIDGE_BINDING)) 165580900acdSMike Manning return; 165680900acdSMike Manning 165780900acdSMike Manning vlan_dev = br_vlan_get_upper_bind_vlan_dev(p->br->dev, vid); 165880900acdSMike Manning if (vlan_dev) 165980900acdSMike Manning br_vlan_set_vlan_dev_state(p->br, vlan_dev); 166080900acdSMike Manning } 166180900acdSMike Manning 166280900acdSMike Manning /* Must be protected by RTNL. */ 1663091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, void *ptr) 16649c0ec2e7SMike Manning { 16659c0ec2e7SMike Manning struct netdev_notifier_changeupper_info *info; 1666091adf9bSNikolay Aleksandrov struct net_bridge *br = netdev_priv(dev); 1667f545923bSNikolay Aleksandrov int vlcmd = 0, ret = 0; 1668f545923bSNikolay Aleksandrov bool changed = false; 16699c0ec2e7SMike Manning 16709c0ec2e7SMike Manning switch (event) { 1671091adf9bSNikolay Aleksandrov case NETDEV_REGISTER: 1672091adf9bSNikolay Aleksandrov ret = br_vlan_add(br, br->default_pvid, 1673091adf9bSNikolay Aleksandrov BRIDGE_VLAN_INFO_PVID | 1674091adf9bSNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 1675091adf9bSNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, &changed, NULL); 1676f545923bSNikolay Aleksandrov vlcmd = RTM_NEWVLAN; 1677091adf9bSNikolay Aleksandrov break; 1678091adf9bSNikolay Aleksandrov case NETDEV_UNREGISTER: 1679f545923bSNikolay Aleksandrov changed = !br_vlan_delete(br, br->default_pvid); 1680f545923bSNikolay Aleksandrov vlcmd = RTM_DELVLAN; 1681091adf9bSNikolay Aleksandrov break; 16829c0ec2e7SMike Manning case NETDEV_CHANGEUPPER: 16839c0ec2e7SMike Manning info = ptr; 16849c0ec2e7SMike Manning br_vlan_upper_change(dev, info->upper_dev, info->linking); 16859c0ec2e7SMike Manning break; 16868e1acd4fSMike Manning 16878e1acd4fSMike Manning case NETDEV_CHANGE: 16888e1acd4fSMike Manning case NETDEV_UP: 16898e1acd4fSMike Manning if (!br_opt_get(br, BROPT_VLAN_BRIDGE_BINDING)) 1690091adf9bSNikolay Aleksandrov break; 16918e1acd4fSMike Manning br_vlan_link_state_change(dev, br); 16928e1acd4fSMike Manning break; 16939c0ec2e7SMike Manning } 1694f545923bSNikolay Aleksandrov if (changed) 1695f545923bSNikolay Aleksandrov br_vlan_notify(br, NULL, br->default_pvid, 0, vlcmd); 1696091adf9bSNikolay Aleksandrov 1697091adf9bSNikolay Aleksandrov return ret; 16989c0ec2e7SMike Manning } 16999c0ec2e7SMike Manning 17009c0ec2e7SMike Manning /* Must be protected by RTNL. */ 17019c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event) 17029c0ec2e7SMike Manning { 17039c0ec2e7SMike Manning if (!br_opt_get(p->br, BROPT_VLAN_BRIDGE_BINDING)) 17049c0ec2e7SMike Manning return; 17059c0ec2e7SMike Manning 17069c0ec2e7SMike Manning switch (event) { 17079c0ec2e7SMike Manning case NETDEV_CHANGE: 17089c0ec2e7SMike Manning case NETDEV_DOWN: 17099c0ec2e7SMike Manning case NETDEV_UP: 17109c0ec2e7SMike Manning br_vlan_set_all_vlan_dev_state(p); 17119c0ec2e7SMike Manning break; 17129c0ec2e7SMike Manning } 17139c0ec2e7SMike Manning } 17148dcea187SNikolay Aleksandrov 171556d09976SNikolay Aleksandrov static bool br_vlan_stats_fill(struct sk_buff *skb, 171656d09976SNikolay Aleksandrov const struct net_bridge_vlan *v) 171756d09976SNikolay Aleksandrov { 1718281cc284SHeiner Kallweit struct pcpu_sw_netstats stats; 171956d09976SNikolay Aleksandrov struct nlattr *nest; 172056d09976SNikolay Aleksandrov 172156d09976SNikolay Aleksandrov nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY_STATS); 172256d09976SNikolay Aleksandrov if (!nest) 172356d09976SNikolay Aleksandrov return false; 172456d09976SNikolay Aleksandrov 172556d09976SNikolay Aleksandrov br_vlan_get_stats(v, &stats); 172656d09976SNikolay Aleksandrov if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_RX_BYTES, stats.rx_bytes, 172756d09976SNikolay Aleksandrov BRIDGE_VLANDB_STATS_PAD) || 172856d09976SNikolay Aleksandrov nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_RX_PACKETS, 172956d09976SNikolay Aleksandrov stats.rx_packets, BRIDGE_VLANDB_STATS_PAD) || 173056d09976SNikolay Aleksandrov nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_TX_BYTES, stats.tx_bytes, 173156d09976SNikolay Aleksandrov BRIDGE_VLANDB_STATS_PAD) || 173256d09976SNikolay Aleksandrov nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_TX_PACKETS, 173356d09976SNikolay Aleksandrov stats.tx_packets, BRIDGE_VLANDB_STATS_PAD)) 173456d09976SNikolay Aleksandrov goto out_err; 173556d09976SNikolay Aleksandrov 173656d09976SNikolay Aleksandrov nla_nest_end(skb, nest); 173756d09976SNikolay Aleksandrov 173856d09976SNikolay Aleksandrov return true; 173956d09976SNikolay Aleksandrov 174056d09976SNikolay Aleksandrov out_err: 174156d09976SNikolay Aleksandrov nla_nest_cancel(skb, nest); 174256d09976SNikolay Aleksandrov return false; 174356d09976SNikolay Aleksandrov } 174456d09976SNikolay Aleksandrov 17457a53e718SNikolay Aleksandrov /* v_opts is used to dump the options which must be equal in the whole range */ 17460ab55879SNikolay Aleksandrov static bool br_vlan_fill_vids(struct sk_buff *skb, u16 vid, u16 vid_range, 17477a53e718SNikolay Aleksandrov const struct net_bridge_vlan *v_opts, 174856d09976SNikolay Aleksandrov u16 flags, 174956d09976SNikolay Aleksandrov bool dump_stats) 17508dcea187SNikolay Aleksandrov { 17518dcea187SNikolay Aleksandrov struct bridge_vlan_info info; 17528dcea187SNikolay Aleksandrov struct nlattr *nest; 17538dcea187SNikolay Aleksandrov 17548dcea187SNikolay Aleksandrov nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY); 17558dcea187SNikolay Aleksandrov if (!nest) 17568dcea187SNikolay Aleksandrov return false; 17578dcea187SNikolay Aleksandrov 17588dcea187SNikolay Aleksandrov memset(&info, 0, sizeof(info)); 17598dcea187SNikolay Aleksandrov info.vid = vid; 17608dcea187SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_UNTAGGED) 17618dcea187SNikolay Aleksandrov info.flags |= BRIDGE_VLAN_INFO_UNTAGGED; 17628dcea187SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_PVID) 17638dcea187SNikolay Aleksandrov info.flags |= BRIDGE_VLAN_INFO_PVID; 17648dcea187SNikolay Aleksandrov 17658dcea187SNikolay Aleksandrov if (nla_put(skb, BRIDGE_VLANDB_ENTRY_INFO, sizeof(info), &info)) 17668dcea187SNikolay Aleksandrov goto out_err; 17678dcea187SNikolay Aleksandrov 17680ab55879SNikolay Aleksandrov if (vid_range && vid < vid_range && 17690ab55879SNikolay Aleksandrov !(flags & BRIDGE_VLAN_INFO_PVID) && 17700ab55879SNikolay Aleksandrov nla_put_u16(skb, BRIDGE_VLANDB_ENTRY_RANGE, vid_range)) 17710ab55879SNikolay Aleksandrov goto out_err; 17720ab55879SNikolay Aleksandrov 177356d09976SNikolay Aleksandrov if (v_opts) { 177456d09976SNikolay Aleksandrov if (!br_vlan_opts_fill(skb, v_opts)) 17757a53e718SNikolay Aleksandrov goto out_err; 17767a53e718SNikolay Aleksandrov 177756d09976SNikolay Aleksandrov if (dump_stats && !br_vlan_stats_fill(skb, v_opts)) 177856d09976SNikolay Aleksandrov goto out_err; 177956d09976SNikolay Aleksandrov } 178056d09976SNikolay Aleksandrov 17818dcea187SNikolay Aleksandrov nla_nest_end(skb, nest); 17828dcea187SNikolay Aleksandrov 17838dcea187SNikolay Aleksandrov return true; 17848dcea187SNikolay Aleksandrov 17858dcea187SNikolay Aleksandrov out_err: 17868dcea187SNikolay Aleksandrov nla_nest_cancel(skb, nest); 17878dcea187SNikolay Aleksandrov return false; 17888dcea187SNikolay Aleksandrov } 17898dcea187SNikolay Aleksandrov 1790cf5bddb9SNikolay Aleksandrov static size_t rtnl_vlan_nlmsg_size(void) 1791cf5bddb9SNikolay Aleksandrov { 1792cf5bddb9SNikolay Aleksandrov return NLMSG_ALIGN(sizeof(struct br_vlan_msg)) 1793cf5bddb9SNikolay Aleksandrov + nla_total_size(0) /* BRIDGE_VLANDB_ENTRY */ 1794cf5bddb9SNikolay Aleksandrov + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_ENTRY_RANGE */ 17957a53e718SNikolay Aleksandrov + nla_total_size(sizeof(struct bridge_vlan_info)) /* BRIDGE_VLANDB_ENTRY_INFO */ 17967a53e718SNikolay Aleksandrov + br_vlan_opts_nl_size(); /* bridge vlan options */ 1797cf5bddb9SNikolay Aleksandrov } 1798cf5bddb9SNikolay Aleksandrov 1799cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1800cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1801cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1802cf5bddb9SNikolay Aleksandrov int cmd) 1803cf5bddb9SNikolay Aleksandrov { 1804cf5bddb9SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 18057a53e718SNikolay Aleksandrov struct net_bridge_vlan *v = NULL; 1806cf5bddb9SNikolay Aleksandrov struct br_vlan_msg *bvm; 1807cf5bddb9SNikolay Aleksandrov struct nlmsghdr *nlh; 1808cf5bddb9SNikolay Aleksandrov struct sk_buff *skb; 1809cf5bddb9SNikolay Aleksandrov int err = -ENOBUFS; 1810cf5bddb9SNikolay Aleksandrov struct net *net; 1811cf5bddb9SNikolay Aleksandrov u16 flags = 0; 1812cf5bddb9SNikolay Aleksandrov int ifindex; 1813cf5bddb9SNikolay Aleksandrov 1814cf5bddb9SNikolay Aleksandrov /* right now notifications are done only with rtnl held */ 1815cf5bddb9SNikolay Aleksandrov ASSERT_RTNL(); 1816cf5bddb9SNikolay Aleksandrov 1817cf5bddb9SNikolay Aleksandrov if (p) { 1818cf5bddb9SNikolay Aleksandrov ifindex = p->dev->ifindex; 1819cf5bddb9SNikolay Aleksandrov vg = nbp_vlan_group(p); 1820cf5bddb9SNikolay Aleksandrov net = dev_net(p->dev); 1821cf5bddb9SNikolay Aleksandrov } else { 1822cf5bddb9SNikolay Aleksandrov ifindex = br->dev->ifindex; 1823cf5bddb9SNikolay Aleksandrov vg = br_vlan_group(br); 1824cf5bddb9SNikolay Aleksandrov net = dev_net(br->dev); 1825cf5bddb9SNikolay Aleksandrov } 1826cf5bddb9SNikolay Aleksandrov 1827cf5bddb9SNikolay Aleksandrov skb = nlmsg_new(rtnl_vlan_nlmsg_size(), GFP_KERNEL); 1828cf5bddb9SNikolay Aleksandrov if (!skb) 1829cf5bddb9SNikolay Aleksandrov goto out_err; 1830cf5bddb9SNikolay Aleksandrov 1831cf5bddb9SNikolay Aleksandrov err = -EMSGSIZE; 1832cf5bddb9SNikolay Aleksandrov nlh = nlmsg_put(skb, 0, 0, cmd, sizeof(*bvm), 0); 1833cf5bddb9SNikolay Aleksandrov if (!nlh) 1834cf5bddb9SNikolay Aleksandrov goto out_err; 1835cf5bddb9SNikolay Aleksandrov bvm = nlmsg_data(nlh); 1836cf5bddb9SNikolay Aleksandrov memset(bvm, 0, sizeof(*bvm)); 1837cf5bddb9SNikolay Aleksandrov bvm->family = AF_BRIDGE; 1838cf5bddb9SNikolay Aleksandrov bvm->ifindex = ifindex; 1839cf5bddb9SNikolay Aleksandrov 1840cf5bddb9SNikolay Aleksandrov switch (cmd) { 1841cf5bddb9SNikolay Aleksandrov case RTM_NEWVLAN: 1842cf5bddb9SNikolay Aleksandrov /* need to find the vlan due to flags/options */ 1843cf5bddb9SNikolay Aleksandrov v = br_vlan_find(vg, vid); 1844cf5bddb9SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) 1845cf5bddb9SNikolay Aleksandrov goto out_kfree; 1846cf5bddb9SNikolay Aleksandrov 1847cf5bddb9SNikolay Aleksandrov flags = v->flags; 1848cf5bddb9SNikolay Aleksandrov if (br_get_pvid(vg) == v->vid) 1849cf5bddb9SNikolay Aleksandrov flags |= BRIDGE_VLAN_INFO_PVID; 1850cf5bddb9SNikolay Aleksandrov break; 1851cf5bddb9SNikolay Aleksandrov case RTM_DELVLAN: 1852cf5bddb9SNikolay Aleksandrov break; 1853cf5bddb9SNikolay Aleksandrov default: 1854cf5bddb9SNikolay Aleksandrov goto out_kfree; 1855cf5bddb9SNikolay Aleksandrov } 1856cf5bddb9SNikolay Aleksandrov 185756d09976SNikolay Aleksandrov if (!br_vlan_fill_vids(skb, vid, vid_range, v, flags, false)) 1858cf5bddb9SNikolay Aleksandrov goto out_err; 1859cf5bddb9SNikolay Aleksandrov 1860cf5bddb9SNikolay Aleksandrov nlmsg_end(skb, nlh); 1861cf5bddb9SNikolay Aleksandrov rtnl_notify(skb, net, 0, RTNLGRP_BRVLAN, NULL, GFP_KERNEL); 1862cf5bddb9SNikolay Aleksandrov return; 1863cf5bddb9SNikolay Aleksandrov 1864cf5bddb9SNikolay Aleksandrov out_err: 1865cf5bddb9SNikolay Aleksandrov rtnl_set_sk_err(net, RTNLGRP_BRVLAN, err); 1866cf5bddb9SNikolay Aleksandrov out_kfree: 1867cf5bddb9SNikolay Aleksandrov kfree_skb(skb); 1868cf5bddb9SNikolay Aleksandrov } 1869cf5bddb9SNikolay Aleksandrov 18700ab55879SNikolay Aleksandrov /* check if v_curr can enter a range ending in range_end */ 1871a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 18720ab55879SNikolay Aleksandrov const struct net_bridge_vlan *range_end) 18730ab55879SNikolay Aleksandrov { 18740ab55879SNikolay Aleksandrov return v_curr->vid - range_end->vid == 1 && 18757a53e718SNikolay Aleksandrov range_end->flags == v_curr->flags && 187699f7c5e0SNikolay Aleksandrov br_vlan_opts_eq_range(v_curr, range_end); 18770ab55879SNikolay Aleksandrov } 18780ab55879SNikolay Aleksandrov 18798dcea187SNikolay Aleksandrov static int br_vlan_dump_dev(const struct net_device *dev, 18808dcea187SNikolay Aleksandrov struct sk_buff *skb, 188156d09976SNikolay Aleksandrov struct netlink_callback *cb, 188256d09976SNikolay Aleksandrov u32 dump_flags) 18838dcea187SNikolay Aleksandrov { 18840ab55879SNikolay Aleksandrov struct net_bridge_vlan *v, *range_start = NULL, *range_end = NULL; 1885743a53d9SNikolay Aleksandrov bool dump_global = !!(dump_flags & BRIDGE_VLANDB_DUMPF_GLOBAL); 188656d09976SNikolay Aleksandrov bool dump_stats = !!(dump_flags & BRIDGE_VLANDB_DUMPF_STATS); 18878dcea187SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 18888dcea187SNikolay Aleksandrov int idx = 0, s_idx = cb->args[1]; 18898dcea187SNikolay Aleksandrov struct nlmsghdr *nlh = NULL; 18908dcea187SNikolay Aleksandrov struct net_bridge_port *p; 18918dcea187SNikolay Aleksandrov struct br_vlan_msg *bvm; 18928dcea187SNikolay Aleksandrov struct net_bridge *br; 18938dcea187SNikolay Aleksandrov int err = 0; 18948dcea187SNikolay Aleksandrov u16 pvid; 18958dcea187SNikolay Aleksandrov 18968dcea187SNikolay Aleksandrov if (!netif_is_bridge_master(dev) && !netif_is_bridge_port(dev)) 18978dcea187SNikolay Aleksandrov return -EINVAL; 18988dcea187SNikolay Aleksandrov 18998dcea187SNikolay Aleksandrov if (netif_is_bridge_master(dev)) { 19008dcea187SNikolay Aleksandrov br = netdev_priv(dev); 19018dcea187SNikolay Aleksandrov vg = br_vlan_group_rcu(br); 19028dcea187SNikolay Aleksandrov p = NULL; 19038dcea187SNikolay Aleksandrov } else { 1904743a53d9SNikolay Aleksandrov /* global options are dumped only for bridge devices */ 1905743a53d9SNikolay Aleksandrov if (dump_global) 1906743a53d9SNikolay Aleksandrov return 0; 1907743a53d9SNikolay Aleksandrov 19088dcea187SNikolay Aleksandrov p = br_port_get_rcu(dev); 19098dcea187SNikolay Aleksandrov if (WARN_ON(!p)) 19108dcea187SNikolay Aleksandrov return -EINVAL; 19118dcea187SNikolay Aleksandrov vg = nbp_vlan_group_rcu(p); 19128dcea187SNikolay Aleksandrov br = p->br; 19138dcea187SNikolay Aleksandrov } 19148dcea187SNikolay Aleksandrov 19158dcea187SNikolay Aleksandrov if (!vg) 19168dcea187SNikolay Aleksandrov return 0; 19178dcea187SNikolay Aleksandrov 19188dcea187SNikolay Aleksandrov nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, 19198dcea187SNikolay Aleksandrov RTM_NEWVLAN, sizeof(*bvm), NLM_F_MULTI); 19208dcea187SNikolay Aleksandrov if (!nlh) 19218dcea187SNikolay Aleksandrov return -EMSGSIZE; 19228dcea187SNikolay Aleksandrov bvm = nlmsg_data(nlh); 19238dcea187SNikolay Aleksandrov memset(bvm, 0, sizeof(*bvm)); 19248dcea187SNikolay Aleksandrov bvm->family = PF_BRIDGE; 19258dcea187SNikolay Aleksandrov bvm->ifindex = dev->ifindex; 19268dcea187SNikolay Aleksandrov pvid = br_get_pvid(vg); 19278dcea187SNikolay Aleksandrov 19280ab55879SNikolay Aleksandrov /* idx must stay at range's beginning until it is filled in */ 19298dcea187SNikolay Aleksandrov list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { 1930743a53d9SNikolay Aleksandrov if (!dump_global && !br_vlan_should_use(v)) 19318dcea187SNikolay Aleksandrov continue; 19320ab55879SNikolay Aleksandrov if (idx < s_idx) { 19330ab55879SNikolay Aleksandrov idx++; 19340ab55879SNikolay Aleksandrov continue; 19350ab55879SNikolay Aleksandrov } 19360ab55879SNikolay Aleksandrov 19370ab55879SNikolay Aleksandrov if (!range_start) { 19380ab55879SNikolay Aleksandrov range_start = v; 19390ab55879SNikolay Aleksandrov range_end = v; 19400ab55879SNikolay Aleksandrov continue; 19410ab55879SNikolay Aleksandrov } 19420ab55879SNikolay Aleksandrov 1943743a53d9SNikolay Aleksandrov if (dump_global) { 1944743a53d9SNikolay Aleksandrov if (br_vlan_global_opts_can_enter_range(v, range_end)) 19456c4110d9SNikolay Aleksandrov goto update_end; 1946743a53d9SNikolay Aleksandrov if (!br_vlan_global_opts_fill(skb, range_start->vid, 1947743a53d9SNikolay Aleksandrov range_end->vid, 1948743a53d9SNikolay Aleksandrov range_start)) { 1949743a53d9SNikolay Aleksandrov err = -EMSGSIZE; 1950743a53d9SNikolay Aleksandrov break; 1951743a53d9SNikolay Aleksandrov } 1952743a53d9SNikolay Aleksandrov /* advance number of filled vlans */ 1953743a53d9SNikolay Aleksandrov idx += range_end->vid - range_start->vid + 1; 1954743a53d9SNikolay Aleksandrov 1955743a53d9SNikolay Aleksandrov range_start = v; 1956743a53d9SNikolay Aleksandrov } else if (dump_stats || v->vid == pvid || 195756d09976SNikolay Aleksandrov !br_vlan_can_enter_range(v, range_end)) { 195856d09976SNikolay Aleksandrov u16 vlan_flags = br_vlan_flags(range_start, pvid); 19590ab55879SNikolay Aleksandrov 19600ab55879SNikolay Aleksandrov if (!br_vlan_fill_vids(skb, range_start->vid, 19617a53e718SNikolay Aleksandrov range_end->vid, range_start, 196256d09976SNikolay Aleksandrov vlan_flags, dump_stats)) { 19638dcea187SNikolay Aleksandrov err = -EMSGSIZE; 19648dcea187SNikolay Aleksandrov break; 19658dcea187SNikolay Aleksandrov } 19660ab55879SNikolay Aleksandrov /* advance number of filled vlans */ 19670ab55879SNikolay Aleksandrov idx += range_end->vid - range_start->vid + 1; 19680ab55879SNikolay Aleksandrov 19690ab55879SNikolay Aleksandrov range_start = v; 19708dcea187SNikolay Aleksandrov } 19716c4110d9SNikolay Aleksandrov update_end: 19720ab55879SNikolay Aleksandrov range_end = v; 19730ab55879SNikolay Aleksandrov } 19740ab55879SNikolay Aleksandrov 19750ab55879SNikolay Aleksandrov /* err will be 0 and range_start will be set in 3 cases here: 19760ab55879SNikolay Aleksandrov * - first vlan (range_start == range_end) 19770ab55879SNikolay Aleksandrov * - last vlan (range_start == range_end, not in range) 19780ab55879SNikolay Aleksandrov * - last vlan range (range_start != range_end, in range) 19790ab55879SNikolay Aleksandrov */ 1980743a53d9SNikolay Aleksandrov if (!err && range_start) { 1981743a53d9SNikolay Aleksandrov if (dump_global && 1982743a53d9SNikolay Aleksandrov !br_vlan_global_opts_fill(skb, range_start->vid, 1983743a53d9SNikolay Aleksandrov range_end->vid, range_start)) 1984743a53d9SNikolay Aleksandrov err = -EMSGSIZE; 1985743a53d9SNikolay Aleksandrov else if (!dump_global && 1986743a53d9SNikolay Aleksandrov !br_vlan_fill_vids(skb, range_start->vid, 1987743a53d9SNikolay Aleksandrov range_end->vid, range_start, 1988743a53d9SNikolay Aleksandrov br_vlan_flags(range_start, pvid), 198956d09976SNikolay Aleksandrov dump_stats)) 19900ab55879SNikolay Aleksandrov err = -EMSGSIZE; 1991743a53d9SNikolay Aleksandrov } 19920ab55879SNikolay Aleksandrov 19930ab55879SNikolay Aleksandrov cb->args[1] = err ? idx : 0; 19940ab55879SNikolay Aleksandrov 19958dcea187SNikolay Aleksandrov nlmsg_end(skb, nlh); 19968dcea187SNikolay Aleksandrov 19978dcea187SNikolay Aleksandrov return err; 19988dcea187SNikolay Aleksandrov } 19998dcea187SNikolay Aleksandrov 200056d09976SNikolay Aleksandrov static const struct nla_policy br_vlan_db_dump_pol[BRIDGE_VLANDB_DUMP_MAX + 1] = { 200156d09976SNikolay Aleksandrov [BRIDGE_VLANDB_DUMP_FLAGS] = { .type = NLA_U32 }, 200256d09976SNikolay Aleksandrov }; 200356d09976SNikolay Aleksandrov 20048dcea187SNikolay Aleksandrov static int br_vlan_rtm_dump(struct sk_buff *skb, struct netlink_callback *cb) 20058dcea187SNikolay Aleksandrov { 200656d09976SNikolay Aleksandrov struct nlattr *dtb[BRIDGE_VLANDB_DUMP_MAX + 1]; 20078dcea187SNikolay Aleksandrov int idx = 0, err = 0, s_idx = cb->args[0]; 20088dcea187SNikolay Aleksandrov struct net *net = sock_net(skb->sk); 20098dcea187SNikolay Aleksandrov struct br_vlan_msg *bvm; 20108dcea187SNikolay Aleksandrov struct net_device *dev; 201156d09976SNikolay Aleksandrov u32 dump_flags = 0; 20128dcea187SNikolay Aleksandrov 201356d09976SNikolay Aleksandrov err = nlmsg_parse(cb->nlh, sizeof(*bvm), dtb, BRIDGE_VLANDB_DUMP_MAX, 201456d09976SNikolay Aleksandrov br_vlan_db_dump_pol, cb->extack); 20158dcea187SNikolay Aleksandrov if (err < 0) 20168dcea187SNikolay Aleksandrov return err; 20178dcea187SNikolay Aleksandrov 20188dcea187SNikolay Aleksandrov bvm = nlmsg_data(cb->nlh); 201956d09976SNikolay Aleksandrov if (dtb[BRIDGE_VLANDB_DUMP_FLAGS]) 202056d09976SNikolay Aleksandrov dump_flags = nla_get_u32(dtb[BRIDGE_VLANDB_DUMP_FLAGS]); 20218dcea187SNikolay Aleksandrov 20228dcea187SNikolay Aleksandrov rcu_read_lock(); 20238dcea187SNikolay Aleksandrov if (bvm->ifindex) { 20248dcea187SNikolay Aleksandrov dev = dev_get_by_index_rcu(net, bvm->ifindex); 20258dcea187SNikolay Aleksandrov if (!dev) { 20268dcea187SNikolay Aleksandrov err = -ENODEV; 20278dcea187SNikolay Aleksandrov goto out_err; 20288dcea187SNikolay Aleksandrov } 202956d09976SNikolay Aleksandrov err = br_vlan_dump_dev(dev, skb, cb, dump_flags); 2030dcb2c5c6SNikolay Aleksandrov /* if the dump completed without an error we return 0 here */ 2031dcb2c5c6SNikolay Aleksandrov if (err != -EMSGSIZE) 20328dcea187SNikolay Aleksandrov goto out_err; 20338dcea187SNikolay Aleksandrov } else { 20348dcea187SNikolay Aleksandrov for_each_netdev_rcu(net, dev) { 20358dcea187SNikolay Aleksandrov if (idx < s_idx) 20368dcea187SNikolay Aleksandrov goto skip; 20378dcea187SNikolay Aleksandrov 203856d09976SNikolay Aleksandrov err = br_vlan_dump_dev(dev, skb, cb, dump_flags); 20398dcea187SNikolay Aleksandrov if (err == -EMSGSIZE) 20408dcea187SNikolay Aleksandrov break; 20418dcea187SNikolay Aleksandrov skip: 20428dcea187SNikolay Aleksandrov idx++; 20438dcea187SNikolay Aleksandrov } 20448dcea187SNikolay Aleksandrov } 20458dcea187SNikolay Aleksandrov cb->args[0] = idx; 20468dcea187SNikolay Aleksandrov rcu_read_unlock(); 20478dcea187SNikolay Aleksandrov 20488dcea187SNikolay Aleksandrov return skb->len; 20498dcea187SNikolay Aleksandrov 20508dcea187SNikolay Aleksandrov out_err: 20518dcea187SNikolay Aleksandrov rcu_read_unlock(); 20528dcea187SNikolay Aleksandrov 20538dcea187SNikolay Aleksandrov return err; 20548dcea187SNikolay Aleksandrov } 20558dcea187SNikolay Aleksandrov 2056f26b2965SNikolay Aleksandrov static const struct nla_policy br_vlan_db_policy[BRIDGE_VLANDB_ENTRY_MAX + 1] = { 20578140860cSJohannes Berg [BRIDGE_VLANDB_ENTRY_INFO] = 20588140860cSJohannes Berg NLA_POLICY_EXACT_LEN(sizeof(struct bridge_vlan_info)), 20590ab55879SNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_RANGE] = { .type = NLA_U16 }, 2060a580c76dSNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_STATE] = { .type = NLA_U8 }, 2061fa388f29SNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_TUNNEL_INFO] = { .type = NLA_NESTED }, 20622796d846SNikolay Aleksandrov [BRIDGE_VLANDB_ENTRY_MCAST_ROUTER] = { .type = NLA_U8 }, 2063f26b2965SNikolay Aleksandrov }; 2064f26b2965SNikolay Aleksandrov 2065f26b2965SNikolay Aleksandrov static int br_vlan_rtm_process_one(struct net_device *dev, 2066f26b2965SNikolay Aleksandrov const struct nlattr *attr, 2067f26b2965SNikolay Aleksandrov int cmd, struct netlink_ext_ack *extack) 2068f26b2965SNikolay Aleksandrov { 20690ab55879SNikolay Aleksandrov struct bridge_vlan_info *vinfo, vrange_end, *vinfo_last = NULL; 2070f26b2965SNikolay Aleksandrov struct nlattr *tb[BRIDGE_VLANDB_ENTRY_MAX + 1]; 2071a5d29ae2SNikolay Aleksandrov bool changed = false, skip_processing = false; 2072f26b2965SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 2073f26b2965SNikolay Aleksandrov struct net_bridge_port *p = NULL; 2074f26b2965SNikolay Aleksandrov int err = 0, cmdmap = 0; 2075f26b2965SNikolay Aleksandrov struct net_bridge *br; 2076f26b2965SNikolay Aleksandrov 2077f26b2965SNikolay Aleksandrov if (netif_is_bridge_master(dev)) { 2078f26b2965SNikolay Aleksandrov br = netdev_priv(dev); 2079f26b2965SNikolay Aleksandrov vg = br_vlan_group(br); 2080f26b2965SNikolay Aleksandrov } else { 2081f26b2965SNikolay Aleksandrov p = br_port_get_rtnl(dev); 2082f26b2965SNikolay Aleksandrov if (WARN_ON(!p)) 2083f26b2965SNikolay Aleksandrov return -ENODEV; 2084f26b2965SNikolay Aleksandrov br = p->br; 2085f26b2965SNikolay Aleksandrov vg = nbp_vlan_group(p); 2086f26b2965SNikolay Aleksandrov } 2087f26b2965SNikolay Aleksandrov 2088f26b2965SNikolay Aleksandrov if (WARN_ON(!vg)) 2089f26b2965SNikolay Aleksandrov return -ENODEV; 2090f26b2965SNikolay Aleksandrov 2091f26b2965SNikolay Aleksandrov err = nla_parse_nested(tb, BRIDGE_VLANDB_ENTRY_MAX, attr, 2092f26b2965SNikolay Aleksandrov br_vlan_db_policy, extack); 2093f26b2965SNikolay Aleksandrov if (err) 2094f26b2965SNikolay Aleksandrov return err; 2095f26b2965SNikolay Aleksandrov 2096f26b2965SNikolay Aleksandrov if (!tb[BRIDGE_VLANDB_ENTRY_INFO]) { 2097f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Missing vlan entry info"); 2098f26b2965SNikolay Aleksandrov return -EINVAL; 2099f26b2965SNikolay Aleksandrov } 21000ab55879SNikolay Aleksandrov memset(&vrange_end, 0, sizeof(vrange_end)); 2101f26b2965SNikolay Aleksandrov 2102f26b2965SNikolay Aleksandrov vinfo = nla_data(tb[BRIDGE_VLANDB_ENTRY_INFO]); 2103f26b2965SNikolay Aleksandrov if (vinfo->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 2104f26b2965SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END)) { 2105f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Old-style vlan ranges are not allowed when using RTM vlan calls"); 2106f26b2965SNikolay Aleksandrov return -EINVAL; 2107f26b2965SNikolay Aleksandrov } 2108f26b2965SNikolay Aleksandrov if (!br_vlan_valid_id(vinfo->vid, extack)) 2109f26b2965SNikolay Aleksandrov return -EINVAL; 2110f26b2965SNikolay Aleksandrov 21110ab55879SNikolay Aleksandrov if (tb[BRIDGE_VLANDB_ENTRY_RANGE]) { 21120ab55879SNikolay Aleksandrov vrange_end.vid = nla_get_u16(tb[BRIDGE_VLANDB_ENTRY_RANGE]); 21130ab55879SNikolay Aleksandrov /* validate user-provided flags without RANGE_BEGIN */ 21140ab55879SNikolay Aleksandrov vrange_end.flags = BRIDGE_VLAN_INFO_RANGE_END | vinfo->flags; 21150ab55879SNikolay Aleksandrov vinfo->flags |= BRIDGE_VLAN_INFO_RANGE_BEGIN; 21160ab55879SNikolay Aleksandrov 21170ab55879SNikolay Aleksandrov /* vinfo_last is the range start, vinfo the range end */ 21180ab55879SNikolay Aleksandrov vinfo_last = vinfo; 21190ab55879SNikolay Aleksandrov vinfo = &vrange_end; 21200ab55879SNikolay Aleksandrov 21210ab55879SNikolay Aleksandrov if (!br_vlan_valid_id(vinfo->vid, extack) || 21220ab55879SNikolay Aleksandrov !br_vlan_valid_range(vinfo, vinfo_last, extack)) 21230ab55879SNikolay Aleksandrov return -EINVAL; 21240ab55879SNikolay Aleksandrov } 21250ab55879SNikolay Aleksandrov 2126f26b2965SNikolay Aleksandrov switch (cmd) { 2127f26b2965SNikolay Aleksandrov case RTM_NEWVLAN: 2128f26b2965SNikolay Aleksandrov cmdmap = RTM_SETLINK; 2129a5d29ae2SNikolay Aleksandrov skip_processing = !!(vinfo->flags & BRIDGE_VLAN_INFO_ONLY_OPTS); 2130f26b2965SNikolay Aleksandrov break; 2131adb3ce9bSNikolay Aleksandrov case RTM_DELVLAN: 2132adb3ce9bSNikolay Aleksandrov cmdmap = RTM_DELLINK; 2133adb3ce9bSNikolay Aleksandrov break; 2134f26b2965SNikolay Aleksandrov } 2135f26b2965SNikolay Aleksandrov 2136a5d29ae2SNikolay Aleksandrov if (!skip_processing) { 2137a5d29ae2SNikolay Aleksandrov struct bridge_vlan_info *tmp_last = vinfo_last; 2138a5d29ae2SNikolay Aleksandrov 2139a5d29ae2SNikolay Aleksandrov /* br_process_vlan_info may overwrite vinfo_last */ 2140a5d29ae2SNikolay Aleksandrov err = br_process_vlan_info(br, p, cmdmap, vinfo, &tmp_last, 2141a5d29ae2SNikolay Aleksandrov &changed, extack); 2142a5d29ae2SNikolay Aleksandrov 2143a5d29ae2SNikolay Aleksandrov /* notify first if anything changed */ 2144f26b2965SNikolay Aleksandrov if (changed) 2145f26b2965SNikolay Aleksandrov br_ifinfo_notify(cmdmap, br, p); 2146f26b2965SNikolay Aleksandrov 2147a5d29ae2SNikolay Aleksandrov if (err) 2148a5d29ae2SNikolay Aleksandrov return err; 2149a5d29ae2SNikolay Aleksandrov } 2150a5d29ae2SNikolay Aleksandrov 2151a5d29ae2SNikolay Aleksandrov /* deal with options */ 2152a5d29ae2SNikolay Aleksandrov if (cmd == RTM_NEWVLAN) { 2153a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, *range_end; 2154a5d29ae2SNikolay Aleksandrov 2155a5d29ae2SNikolay Aleksandrov if (vinfo_last) { 2156a5d29ae2SNikolay Aleksandrov range_start = br_vlan_find(vg, vinfo_last->vid); 2157a5d29ae2SNikolay Aleksandrov range_end = br_vlan_find(vg, vinfo->vid); 2158a5d29ae2SNikolay Aleksandrov } else { 2159a5d29ae2SNikolay Aleksandrov range_start = br_vlan_find(vg, vinfo->vid); 2160a5d29ae2SNikolay Aleksandrov range_end = range_start; 2161a5d29ae2SNikolay Aleksandrov } 2162a5d29ae2SNikolay Aleksandrov 2163a5d29ae2SNikolay Aleksandrov err = br_vlan_process_options(br, p, range_start, range_end, 2164a5d29ae2SNikolay Aleksandrov tb, extack); 2165a5d29ae2SNikolay Aleksandrov } 2166a5d29ae2SNikolay Aleksandrov 2167f26b2965SNikolay Aleksandrov return err; 2168f26b2965SNikolay Aleksandrov } 2169f26b2965SNikolay Aleksandrov 2170f26b2965SNikolay Aleksandrov static int br_vlan_rtm_process(struct sk_buff *skb, struct nlmsghdr *nlh, 2171f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack) 2172f26b2965SNikolay Aleksandrov { 2173f26b2965SNikolay Aleksandrov struct net *net = sock_net(skb->sk); 2174f26b2965SNikolay Aleksandrov struct br_vlan_msg *bvm; 2175f26b2965SNikolay Aleksandrov struct net_device *dev; 2176f26b2965SNikolay Aleksandrov struct nlattr *attr; 2177f26b2965SNikolay Aleksandrov int err, vlans = 0; 2178f26b2965SNikolay Aleksandrov int rem; 2179f26b2965SNikolay Aleksandrov 2180f26b2965SNikolay Aleksandrov /* this should validate the header and check for remaining bytes */ 2181f26b2965SNikolay Aleksandrov err = nlmsg_parse(nlh, sizeof(*bvm), NULL, BRIDGE_VLANDB_MAX, NULL, 2182f26b2965SNikolay Aleksandrov extack); 2183f26b2965SNikolay Aleksandrov if (err < 0) 2184f26b2965SNikolay Aleksandrov return err; 2185f26b2965SNikolay Aleksandrov 2186f26b2965SNikolay Aleksandrov bvm = nlmsg_data(nlh); 2187f26b2965SNikolay Aleksandrov dev = __dev_get_by_index(net, bvm->ifindex); 2188f26b2965SNikolay Aleksandrov if (!dev) 2189f26b2965SNikolay Aleksandrov return -ENODEV; 2190f26b2965SNikolay Aleksandrov 2191f26b2965SNikolay Aleksandrov if (!netif_is_bridge_master(dev) && !netif_is_bridge_port(dev)) { 2192f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "The device is not a valid bridge or bridge port"); 2193f26b2965SNikolay Aleksandrov return -EINVAL; 2194f26b2965SNikolay Aleksandrov } 2195f26b2965SNikolay Aleksandrov 2196f26b2965SNikolay Aleksandrov nlmsg_for_each_attr(attr, nlh, sizeof(*bvm), rem) { 219747ecd2dbSNikolay Aleksandrov switch (nla_type(attr)) { 219847ecd2dbSNikolay Aleksandrov case BRIDGE_VLANDB_ENTRY: 219947ecd2dbSNikolay Aleksandrov err = br_vlan_rtm_process_one(dev, attr, 220047ecd2dbSNikolay Aleksandrov nlh->nlmsg_type, 220147ecd2dbSNikolay Aleksandrov extack); 220247ecd2dbSNikolay Aleksandrov break; 220347ecd2dbSNikolay Aleksandrov case BRIDGE_VLANDB_GLOBAL_OPTIONS: 220447ecd2dbSNikolay Aleksandrov err = br_vlan_rtm_process_global_options(dev, attr, 220547ecd2dbSNikolay Aleksandrov nlh->nlmsg_type, 220647ecd2dbSNikolay Aleksandrov extack); 220747ecd2dbSNikolay Aleksandrov break; 220847ecd2dbSNikolay Aleksandrov default: 2209f26b2965SNikolay Aleksandrov continue; 221047ecd2dbSNikolay Aleksandrov } 2211f26b2965SNikolay Aleksandrov 2212f26b2965SNikolay Aleksandrov vlans++; 2213f26b2965SNikolay Aleksandrov if (err) 2214f26b2965SNikolay Aleksandrov break; 2215f26b2965SNikolay Aleksandrov } 2216f26b2965SNikolay Aleksandrov if (!vlans) { 2217f26b2965SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "No vlans found to process"); 2218f26b2965SNikolay Aleksandrov err = -EINVAL; 2219f26b2965SNikolay Aleksandrov } 2220f26b2965SNikolay Aleksandrov 2221f26b2965SNikolay Aleksandrov return err; 2222f26b2965SNikolay Aleksandrov } 2223f26b2965SNikolay Aleksandrov 22248dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void) 22258dcea187SNikolay Aleksandrov { 22268dcea187SNikolay Aleksandrov rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_GETVLAN, NULL, 22278dcea187SNikolay Aleksandrov br_vlan_rtm_dump, 0); 2228f26b2965SNikolay Aleksandrov rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_NEWVLAN, 2229f26b2965SNikolay Aleksandrov br_vlan_rtm_process, NULL, 0); 2230adb3ce9bSNikolay Aleksandrov rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_DELVLAN, 2231adb3ce9bSNikolay Aleksandrov br_vlan_rtm_process, NULL, 0); 22328dcea187SNikolay Aleksandrov } 22338dcea187SNikolay Aleksandrov 22348dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void) 22358dcea187SNikolay Aleksandrov { 22368dcea187SNikolay Aleksandrov rtnl_unregister(PF_BRIDGE, RTM_GETVLAN); 2237f26b2965SNikolay Aleksandrov rtnl_unregister(PF_BRIDGE, RTM_NEWVLAN); 2238adb3ce9bSNikolay Aleksandrov rtnl_unregister(PF_BRIDGE, RTM_DELVLAN); 22398dcea187SNikolay Aleksandrov } 2240