| // SPDX-License-Identifier: GPL-2.0-only |
| // Copyright (c) 2020, Nikolay Aleksandrov <nikolay@cumulusnetworks.com> |
| #include <linux/kernel.h> |
| #include <linux/netdevice.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/slab.h> |
| #include <net/ip_tunnels.h> |
| |
| #include "br_private.h" |
| #include "br_private_tunnel.h" |
| |
| static bool __vlan_tun_put(struct sk_buff *skb, const struct net_bridge_vlan *v) |
| { |
| __be32 tid = tunnel_id_to_key32(v->tinfo.tunnel_id); |
| struct nlattr *nest; |
| |
| if (!v->tinfo.tunnel_dst) |
| return true; |
| |
| nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY_TUNNEL_INFO); |
| if (!nest) |
| return false; |
| if (nla_put_u32(skb, BRIDGE_VLANDB_TINFO_ID, be32_to_cpu(tid))) { |
| nla_nest_cancel(skb, nest); |
| return false; |
| } |
| nla_nest_end(skb, nest); |
| |
| return true; |
| } |
| |
| static bool __vlan_tun_can_enter_range(const struct net_bridge_vlan *v_curr, |
| const struct net_bridge_vlan *range_end) |
| { |
| return (!v_curr->tinfo.tunnel_dst && !range_end->tinfo.tunnel_dst) || |
| vlan_tunid_inrange(v_curr, range_end); |
| } |
| |
| /* check if the options' state of v_curr allow it to enter the range */ |
| bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, |
| const struct net_bridge_vlan *range_end) |
| { |
| u8 range_mc_rtr = br_vlan_multicast_router(range_end); |
| u8 curr_mc_rtr = br_vlan_multicast_router(v_curr); |
| |
| return v_curr->state == range_end->state && |
| __vlan_tun_can_enter_range(v_curr, range_end) && |
| curr_mc_rtr == range_mc_rtr; |
| } |
| |
| bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v, |
| const struct net_bridge_port *p) |
| { |
| if (nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_STATE, br_vlan_get_state(v)) || |
| !__vlan_tun_put(skb, v) || |
| nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS, |
| !!(v->priv_flags & BR_VLFLAG_NEIGH_SUPPRESS_ENABLED))) |
| return false; |
| |
| #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| if (nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_MCAST_ROUTER, |
| br_vlan_multicast_router(v))) |
| return false; |
| if (p && !br_multicast_port_ctx_vlan_disabled(&v->port_mcast_ctx) && |
| (nla_put_u32(skb, BRIDGE_VLANDB_ENTRY_MCAST_N_GROUPS, |
| br_multicast_ngroups_get(&v->port_mcast_ctx)) || |
| nla_put_u32(skb, BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS, |
| br_multicast_ngroups_get_max(&v->port_mcast_ctx)))) |
| return false; |
| #endif |
| |
| return true; |
| } |
| |
| size_t br_vlan_opts_nl_size(void) |
| { |
| return nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_STATE */ |
| + nla_total_size(0) /* BRIDGE_VLANDB_ENTRY_TUNNEL_INFO */ |
| + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_TINFO_ID */ |
| #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_MCAST_ROUTER */ |
| + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_ENTRY_MCAST_N_GROUPS */ |
| + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS */ |
| #endif |
| + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS */ |
| + 0; |
| } |
| |
| static int br_vlan_modify_state(struct net_bridge_vlan_group *vg, |
| struct net_bridge_vlan *v, |
| u8 state, |
| bool *changed, |
| struct netlink_ext_ack *extack) |
| { |
| struct net_bridge *br; |
| |
| ASSERT_RTNL(); |
| |
| if (state > BR_STATE_BLOCKING) { |
| NL_SET_ERR_MSG_MOD(extack, "Invalid vlan state"); |
| return -EINVAL; |
| } |
| |
| if (br_vlan_is_brentry(v)) |
| br = v->br; |
| else |
| br = v->port->br; |
| |
| if (br->stp_enabled == BR_KERNEL_STP) { |
| NL_SET_ERR_MSG_MOD(extack, "Can't modify vlan state when using kernel STP"); |
| return -EBUSY; |
| } |
| |
| if (br_opt_get(br, BROPT_MST_ENABLED)) { |
| NL_SET_ERR_MSG_MOD(extack, "Can't modify vlan state directly when MST is enabled"); |
| return -EBUSY; |
| } |
| |
| if (v->state == state) |
| return 0; |
| |
| if (v->vid == br_get_pvid(vg)) |
| br_vlan_set_pvid_state(vg, state); |
| |
| br_vlan_set_state(v, state); |
| *changed = true; |
| |
| return 0; |
| } |
| |
| static const struct nla_policy br_vlandb_tinfo_pol[BRIDGE_VLANDB_TINFO_MAX + 1] = { |
| [BRIDGE_VLANDB_TINFO_ID] = { .type = NLA_U32 }, |
| [BRIDGE_VLANDB_TINFO_CMD] = { .type = NLA_U32 }, |
| }; |
| |
| static int br_vlan_modify_tunnel(const struct net_bridge_port *p, |
| struct net_bridge_vlan *v, |
| struct nlattr **tb, |
| bool *changed, |
| struct netlink_ext_ack *extack) |
| { |
| struct nlattr *tun_tb[BRIDGE_VLANDB_TINFO_MAX + 1], *attr; |
| struct bridge_vlan_info *vinfo; |
| u32 tun_id = 0; |
| int cmd, err; |
| |
| if (!p) { |
| NL_SET_ERR_MSG_MOD(extack, "Can't modify tunnel mapping of non-port vlans"); |
| return -EINVAL; |
| } |
| if (!(p->flags & BR_VLAN_TUNNEL)) { |
| NL_SET_ERR_MSG_MOD(extack, "Port doesn't have tunnel flag set"); |
| return -EINVAL; |
| } |
| |
| attr = tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]; |
| err = nla_parse_nested(tun_tb, BRIDGE_VLANDB_TINFO_MAX, attr, |
| br_vlandb_tinfo_pol, extack); |
| if (err) |
| return err; |
| |
| if (!tun_tb[BRIDGE_VLANDB_TINFO_CMD]) { |
| NL_SET_ERR_MSG_MOD(extack, "Missing tunnel command attribute"); |
| return -ENOENT; |
| } |
| cmd = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_CMD]); |
| switch (cmd) { |
| case RTM_SETLINK: |
| if (!tun_tb[BRIDGE_VLANDB_TINFO_ID]) { |
| NL_SET_ERR_MSG_MOD(extack, "Missing tunnel id attribute"); |
| return -ENOENT; |
| } |
| /* when working on vlan ranges this is the starting tunnel id */ |
| tun_id = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_ID]); |
| /* vlan info attr is guaranteed by br_vlan_rtm_process_one */ |
| vinfo = nla_data(tb[BRIDGE_VLANDB_ENTRY_INFO]); |
| /* tunnel ids are mapped to each vlan in increasing order, |
| * the starting vlan is in BRIDGE_VLANDB_ENTRY_INFO and v is the |
| * current vlan, so we compute: tun_id + v - vinfo->vid |
| */ |
| tun_id += v->vid - vinfo->vid; |
| break; |
| case RTM_DELLINK: |
| break; |
| default: |
| NL_SET_ERR_MSG_MOD(extack, "Unsupported tunnel command"); |
| return -EINVAL; |
| } |
| |
| return br_vlan_tunnel_info(p, cmd, v->vid, tun_id, changed); |
| } |
| |
| static int br_vlan_process_one_opts(const struct net_bridge *br, |
| const struct net_bridge_port *p, |
| struct net_bridge_vlan_group *vg, |
| struct net_bridge_vlan *v, |
| struct nlattr **tb, |
| bool *changed, |
| struct netlink_ext_ack *extack) |
| { |
| int err; |
| |
| *changed = false; |
| if (tb[BRIDGE_VLANDB_ENTRY_STATE]) { |
| u8 state = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_STATE]); |
| |
| err = br_vlan_modify_state(vg, v, state, changed, extack); |
| if (err) |
| return err; |
| } |
| if (tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]) { |
| err = br_vlan_modify_tunnel(p, v, tb, changed, extack); |
| if (err) |
| return err; |
| } |
| |
| #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| if (tb[BRIDGE_VLANDB_ENTRY_MCAST_ROUTER]) { |
| u8 val; |
| |
| val = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_MCAST_ROUTER]); |
| err = br_multicast_set_vlan_router(v, val); |
| if (err) |
| return err; |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS]) { |
| u32 val; |
| |
| if (!p) { |
| NL_SET_ERR_MSG_MOD(extack, "Can't set mcast_max_groups for non-port vlans"); |
| return -EINVAL; |
| } |
| if (br_multicast_port_ctx_vlan_disabled(&v->port_mcast_ctx)) { |
| NL_SET_ERR_MSG_MOD(extack, "Multicast snooping disabled on this VLAN"); |
| return -EINVAL; |
| } |
| |
| val = nla_get_u32(tb[BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS]); |
| br_multicast_ngroups_set_max(&v->port_mcast_ctx, val); |
| *changed = true; |
| } |
| #endif |
| |
| if (tb[BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS]) { |
| bool enabled = v->priv_flags & BR_VLFLAG_NEIGH_SUPPRESS_ENABLED; |
| bool val = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS]); |
| |
| if (!p) { |
| NL_SET_ERR_MSG_MOD(extack, "Can't set neigh_suppress for non-port vlans"); |
| return -EINVAL; |
| } |
| |
| if (val != enabled) { |
| v->priv_flags ^= BR_VLFLAG_NEIGH_SUPPRESS_ENABLED; |
| *changed = true; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int br_vlan_process_options(const struct net_bridge *br, |
| const struct net_bridge_port *p, |
| struct net_bridge_vlan *range_start, |
| struct net_bridge_vlan *range_end, |
| struct nlattr **tb, |
| struct netlink_ext_ack *extack) |
| { |
| struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL; |
| struct net_bridge_vlan_group *vg; |
| int vid, err = 0; |
| u16 pvid; |
| |
| if (p) |
| vg = nbp_vlan_group(p); |
| else |
| vg = br_vlan_group(br); |
| |
| if (!range_start || !br_vlan_should_use(range_start)) { |
| NL_SET_ERR_MSG_MOD(extack, "Vlan range start doesn't exist, can't process options"); |
| return -ENOENT; |
| } |
| if (!range_end || !br_vlan_should_use(range_end)) { |
| NL_SET_ERR_MSG_MOD(extack, "Vlan range end doesn't exist, can't process options"); |
| return -ENOENT; |
| } |
| |
| pvid = br_get_pvid(vg); |
| for (vid = range_start->vid; vid <= range_end->vid; vid++) { |
| bool changed = false; |
| |
| v = br_vlan_find(vg, vid); |
| if (!v || !br_vlan_should_use(v)) { |
| NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't process options"); |
| err = -ENOENT; |
| break; |
| } |
| |
| err = br_vlan_process_one_opts(br, p, vg, v, tb, &changed, |
| extack); |
| if (err) |
| break; |
| |
| if (changed) { |
| /* vlan options changed, check for range */ |
| if (!curr_start) { |
| curr_start = v; |
| curr_end = v; |
| continue; |
| } |
| |
| if (v->vid == pvid || |
| !br_vlan_can_enter_range(v, curr_end)) { |
| br_vlan_notify(br, p, curr_start->vid, |
| curr_end->vid, RTM_NEWVLAN); |
| curr_start = v; |
| } |
| curr_end = v; |
| } else { |
| /* nothing changed and nothing to notify yet */ |
| if (!curr_start) |
| continue; |
| |
| br_vlan_notify(br, p, curr_start->vid, curr_end->vid, |
| RTM_NEWVLAN); |
| curr_start = NULL; |
| curr_end = NULL; |
| } |
| } |
| if (curr_start) |
| br_vlan_notify(br, p, curr_start->vid, curr_end->vid, |
| RTM_NEWVLAN); |
| |
| return err; |
| } |
| |
| bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, |
| const struct net_bridge_vlan *r_end) |
| { |
| return v_curr->vid - r_end->vid == 1 && |
| v_curr->msti == r_end->msti && |
| ((v_curr->priv_flags ^ r_end->priv_flags) & |
| BR_VLFLAG_GLOBAL_MCAST_ENABLED) == 0 && |
| br_multicast_ctx_options_equal(&v_curr->br_mcast_ctx, |
| &r_end->br_mcast_ctx); |
| } |
| |
| bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, |
| const struct net_bridge_vlan *v_opts) |
| { |
| struct nlattr *nest2 __maybe_unused; |
| u64 clockval __maybe_unused; |
| struct nlattr *nest; |
| |
| nest = nla_nest_start(skb, BRIDGE_VLANDB_GLOBAL_OPTIONS); |
| if (!nest) |
| return false; |
| |
| if (nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_ID, vid)) |
| goto out_err; |
| |
| if (vid_range && vid < vid_range && |
| nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_RANGE, vid_range)) |
| goto out_err; |
| |
| #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING, |
| !!(v_opts->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)) || |
| nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION, |
| v_opts->br_mcast_ctx.multicast_igmp_version) || |
| nla_put_u32(skb, BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT, |
| v_opts->br_mcast_ctx.multicast_last_member_count) || |
| nla_put_u32(skb, BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT, |
| v_opts->br_mcast_ctx.multicast_startup_query_count) || |
| nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER, |
| v_opts->br_mcast_ctx.multicast_querier) || |
| br_multicast_dump_querier_state(skb, &v_opts->br_mcast_ctx, |
| BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE)) |
| goto out_err; |
| |
| clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_last_member_interval); |
| if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL, |
| clockval, BRIDGE_VLANDB_GOPTS_PAD)) |
| goto out_err; |
| clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_membership_interval); |
| if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL, |
| clockval, BRIDGE_VLANDB_GOPTS_PAD)) |
| goto out_err; |
| clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_querier_interval); |
| if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL, |
| clockval, BRIDGE_VLANDB_GOPTS_PAD)) |
| goto out_err; |
| clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_interval); |
| if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL, |
| clockval, BRIDGE_VLANDB_GOPTS_PAD)) |
| goto out_err; |
| clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_response_interval); |
| if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL, |
| clockval, BRIDGE_VLANDB_GOPTS_PAD)) |
| goto out_err; |
| clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_startup_query_interval); |
| if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL, |
| clockval, BRIDGE_VLANDB_GOPTS_PAD)) |
| goto out_err; |
| |
| if (br_rports_have_mc_router(&v_opts->br_mcast_ctx)) { |
| nest2 = nla_nest_start(skb, |
| BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS); |
| if (!nest2) |
| goto out_err; |
| |
| rcu_read_lock(); |
| if (br_rports_fill_info(skb, &v_opts->br_mcast_ctx)) { |
| rcu_read_unlock(); |
| nla_nest_cancel(skb, nest2); |
| goto out_err; |
| } |
| rcu_read_unlock(); |
| |
| nla_nest_end(skb, nest2); |
| } |
| |
| #if IS_ENABLED(CONFIG_IPV6) |
| if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION, |
| v_opts->br_mcast_ctx.multicast_mld_version)) |
| goto out_err; |
| #endif |
| #endif |
| |
| if (nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_MSTI, v_opts->msti)) |
| goto out_err; |
| |
| nla_nest_end(skb, nest); |
| |
| return true; |
| |
| out_err: |
| nla_nest_cancel(skb, nest); |
| return false; |
| } |
| |
| static size_t rtnl_vlan_global_opts_nlmsg_size(const struct net_bridge_vlan *v) |
| { |
| return NLMSG_ALIGN(sizeof(struct br_vlan_msg)) |
| + nla_total_size(0) /* BRIDGE_VLANDB_GLOBAL_OPTIONS */ |
| + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_GOPTS_ID */ |
| #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING */ |
| + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION */ |
| + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION */ |
| + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT */ |
| + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT */ |
| + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL */ |
| + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL */ |
| + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL */ |
| + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL */ |
| + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL */ |
| + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL */ |
| + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER */ |
| + br_multicast_querier_state_size() /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE */ |
| + nla_total_size(0) /* BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS */ |
| + br_rports_size(&v->br_mcast_ctx) /* BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS */ |
| #endif |
| + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_GOPTS_MSTI */ |
| + nla_total_size(sizeof(u16)); /* BRIDGE_VLANDB_GOPTS_RANGE */ |
| } |
| |
| static void br_vlan_global_opts_notify(const struct net_bridge *br, |
| u16 vid, u16 vid_range) |
| { |
| struct net_bridge_vlan *v; |
| struct br_vlan_msg *bvm; |
| struct nlmsghdr *nlh; |
| struct sk_buff *skb; |
| int err = -ENOBUFS; |
| |
| /* right now notifications are done only with rtnl held */ |
| ASSERT_RTNL(); |
| |
| /* need to find the vlan due to flags/options */ |
| v = br_vlan_find(br_vlan_group(br), vid); |
| if (!v) |
| return; |
| |
| skb = nlmsg_new(rtnl_vlan_global_opts_nlmsg_size(v), GFP_KERNEL); |
| if (!skb) |
| goto out_err; |
| |
| err = -EMSGSIZE; |
| nlh = nlmsg_put(skb, 0, 0, RTM_NEWVLAN, sizeof(*bvm), 0); |
| if (!nlh) |
| goto out_err; |
| bvm = nlmsg_data(nlh); |
| memset(bvm, 0, sizeof(*bvm)); |
| bvm->family = AF_BRIDGE; |
| bvm->ifindex = br->dev->ifindex; |
| |
| if (!br_vlan_global_opts_fill(skb, vid, vid_range, v)) |
| goto out_err; |
| |
| nlmsg_end(skb, nlh); |
| rtnl_notify(skb, dev_net(br->dev), 0, RTNLGRP_BRVLAN, NULL, GFP_KERNEL); |
| return; |
| |
| out_err: |
| rtnl_set_sk_err(dev_net(br->dev), RTNLGRP_BRVLAN, err); |
| kfree_skb(skb); |
| } |
| |
| static int br_vlan_process_global_one_opts(const struct net_bridge *br, |
| struct net_bridge_vlan_group *vg, |
| struct net_bridge_vlan *v, |
| struct nlattr **tb, |
| bool *changed, |
| struct netlink_ext_ack *extack) |
| { |
| int err __maybe_unused; |
| |
| *changed = false; |
| #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]) { |
| u8 mc_snooping; |
| |
| mc_snooping = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]); |
| if (br_multicast_toggle_global_vlan(v, !!mc_snooping)) |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION]) { |
| u8 ver; |
| |
| ver = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION]); |
| err = br_multicast_set_igmp_version(&v->br_mcast_ctx, ver); |
| if (err) |
| return err; |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT]) { |
| u32 cnt; |
| |
| cnt = nla_get_u32(tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT]); |
| v->br_mcast_ctx.multicast_last_member_count = cnt; |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT]) { |
| u32 cnt; |
| |
| cnt = nla_get_u32(tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT]); |
| v->br_mcast_ctx.multicast_startup_query_count = cnt; |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL]) { |
| u64 val; |
| |
| val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL]); |
| v->br_mcast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val); |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL]) { |
| u64 val; |
| |
| val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL]); |
| v->br_mcast_ctx.multicast_membership_interval = clock_t_to_jiffies(val); |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL]) { |
| u64 val; |
| |
| val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL]); |
| v->br_mcast_ctx.multicast_querier_interval = clock_t_to_jiffies(val); |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL]) { |
| u64 val; |
| |
| val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL]); |
| br_multicast_set_query_intvl(&v->br_mcast_ctx, val); |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL]) { |
| u64 val; |
| |
| val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL]); |
| v->br_mcast_ctx.multicast_query_response_interval = clock_t_to_jiffies(val); |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL]) { |
| u64 val; |
| |
| val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL]); |
| br_multicast_set_startup_query_intvl(&v->br_mcast_ctx, val); |
| *changed = true; |
| } |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER]) { |
| u8 val; |
| |
| val = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER]); |
| err = br_multicast_set_querier(&v->br_mcast_ctx, val); |
| if (err) |
| return err; |
| *changed = true; |
| } |
| #if IS_ENABLED(CONFIG_IPV6) |
| if (tb[BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION]) { |
| u8 ver; |
| |
| ver = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION]); |
| err = br_multicast_set_mld_version(&v->br_mcast_ctx, ver); |
| if (err) |
| return err; |
| *changed = true; |
| } |
| #endif |
| #endif |
| if (tb[BRIDGE_VLANDB_GOPTS_MSTI]) { |
| u16 msti; |
| |
| msti = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_MSTI]); |
| err = br_mst_vlan_set_msti(v, msti); |
| if (err) |
| return err; |
| *changed = true; |
| } |
| |
| return 0; |
| } |
| |
| static const struct nla_policy br_vlan_db_gpol[BRIDGE_VLANDB_GOPTS_MAX + 1] = { |
| [BRIDGE_VLANDB_GOPTS_ID] = { .type = NLA_U16 }, |
| [BRIDGE_VLANDB_GOPTS_RANGE] = { .type = NLA_U16 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING] = { .type = NLA_U8 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION] = { .type = NLA_U8 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL] = { .type = NLA_U64 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_QUERIER] = { .type = NLA_U8 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION] = { .type = NLA_U8 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL] = { .type = NLA_U64 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 }, |
| [BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 }, |
| [BRIDGE_VLANDB_GOPTS_MSTI] = NLA_POLICY_MAX(NLA_U16, VLAN_N_VID - 1), |
| }; |
| |
| int br_vlan_rtm_process_global_options(struct net_device *dev, |
| const struct nlattr *attr, |
| int cmd, |
| struct netlink_ext_ack *extack) |
| { |
| struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL; |
| struct nlattr *tb[BRIDGE_VLANDB_GOPTS_MAX + 1]; |
| struct net_bridge_vlan_group *vg; |
| u16 vid, vid_range = 0; |
| struct net_bridge *br; |
| int err = 0; |
| |
| if (cmd != RTM_NEWVLAN) { |
| NL_SET_ERR_MSG_MOD(extack, "Global vlan options support only set operation"); |
| return -EINVAL; |
| } |
| if (!netif_is_bridge_master(dev)) { |
| NL_SET_ERR_MSG_MOD(extack, "Global vlan options can only be set on bridge device"); |
| return -EINVAL; |
| } |
| br = netdev_priv(dev); |
| vg = br_vlan_group(br); |
| if (WARN_ON(!vg)) |
| return -ENODEV; |
| |
| err = nla_parse_nested(tb, BRIDGE_VLANDB_GOPTS_MAX, attr, |
| br_vlan_db_gpol, extack); |
| if (err) |
| return err; |
| |
| if (!tb[BRIDGE_VLANDB_GOPTS_ID]) { |
| NL_SET_ERR_MSG_MOD(extack, "Missing vlan entry id"); |
| return -EINVAL; |
| } |
| vid = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_ID]); |
| if (!br_vlan_valid_id(vid, extack)) |
| return -EINVAL; |
| |
| if (tb[BRIDGE_VLANDB_GOPTS_RANGE]) { |
| vid_range = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_RANGE]); |
| if (!br_vlan_valid_id(vid_range, extack)) |
| return -EINVAL; |
| if (vid >= vid_range) { |
| NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); |
| return -EINVAL; |
| } |
| } else { |
| vid_range = vid; |
| } |
| |
| for (; vid <= vid_range; vid++) { |
| bool changed = false; |
| |
| v = br_vlan_find(vg, vid); |
| if (!v) { |
| NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't process global options"); |
| err = -ENOENT; |
| break; |
| } |
| |
| err = br_vlan_process_global_one_opts(br, vg, v, tb, &changed, |
| extack); |
| if (err) |
| break; |
| |
| if (changed) { |
| /* vlan options changed, check for range */ |
| if (!curr_start) { |
| curr_start = v; |
| curr_end = v; |
| continue; |
| } |
| |
| if (!br_vlan_global_opts_can_enter_range(v, curr_end)) { |
| br_vlan_global_opts_notify(br, curr_start->vid, |
| curr_end->vid); |
| curr_start = v; |
| } |
| curr_end = v; |
| } else { |
| /* nothing changed and nothing to notify yet */ |
| if (!curr_start) |
| continue; |
| |
| br_vlan_global_opts_notify(br, curr_start->vid, |
| curr_end->vid); |
| curr_start = NULL; |
| curr_end = NULL; |
| } |
| } |
| if (curr_start) |
| br_vlan_global_opts_notify(br, curr_start->vid, curr_end->vid); |
| |
| return err; |
| } |
