diff options
| -rw-r--r-- | net/bridge/Makefile | 2 | ||||
| -rw-r--r-- | net/bridge/br_private.h | 8 | ||||
| -rw-r--r-- | net/bridge/br_vlan.c | 20 | ||||
| -rw-r--r-- | net/bridge/br_vlan_options.c | 25 |
4 files changed, 48 insertions, 7 deletions
diff --git a/net/bridge/Makefile b/net/bridge/Makefile index ac9ef337f0fa..49da7ae6f077 100644 --- a/net/bridge/Makefile +++ b/net/bridge/Makefile @@ -20,7 +20,7 @@ obj-$(CONFIG_BRIDGE_NETFILTER) += br_netfilter.o bridge-$(CONFIG_BRIDGE_IGMP_SNOOPING) += br_multicast.o br_mdb.o -bridge-$(CONFIG_BRIDGE_VLAN_FILTERING) += br_vlan.o br_vlan_tunnel.o +bridge-$(CONFIG_BRIDGE_VLAN_FILTERING) += br_vlan.o br_vlan_tunnel.o br_vlan_options.o bridge-$(CONFIG_NET_SWITCHDEV) += br_switchdev.o diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index a6226ff2f0cc..403df71d2cfa 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -1191,6 +1191,14 @@ static inline void br_vlan_notify(const struct net_bridge *br, } #endif +/* br_vlan_options.c */ +#ifdef CONFIG_BRIDGE_VLAN_FILTERING +bool br_vlan_opts_eq(const struct net_bridge_vlan *v1, + const struct net_bridge_vlan *v2); +bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); +size_t br_vlan_opts_nl_size(void); +#endif + struct nf_br_ops { int (*br_dev_xmit_hook)(struct sk_buff *skb); }; diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index e4f7dd10c3f8..75ec3da92b0b 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -1547,7 +1547,9 @@ void br_vlan_port_event(struct net_bridge_port *p, unsigned long event) } } +/* v_opts is used to dump the options which must be equal in the whole range */ static bool br_vlan_fill_vids(struct sk_buff *skb, u16 vid, u16 vid_range, + const struct net_bridge_vlan *v_opts, u16 flags) { struct bridge_vlan_info info; @@ -1572,6 +1574,9 @@ static bool br_vlan_fill_vids(struct sk_buff *skb, u16 vid, u16 vid_range, nla_put_u16(skb, BRIDGE_VLANDB_ENTRY_RANGE, vid_range)) goto out_err; + if (v_opts && !br_vlan_opts_fill(skb, v_opts)) + goto out_err; + nla_nest_end(skb, nest); return true; @@ -1586,7 +1591,8 @@ static size_t rtnl_vlan_nlmsg_size(void) return NLMSG_ALIGN(sizeof(struct br_vlan_msg)) + nla_total_size(0) /* BRIDGE_VLANDB_ENTRY */ + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_ENTRY_RANGE */ - + nla_total_size(sizeof(struct bridge_vlan_info)); /* BRIDGE_VLANDB_ENTRY_INFO */ + + nla_total_size(sizeof(struct bridge_vlan_info)) /* BRIDGE_VLANDB_ENTRY_INFO */ + + br_vlan_opts_nl_size(); /* bridge vlan options */ } void br_vlan_notify(const struct net_bridge *br, @@ -1595,7 +1601,7 @@ void br_vlan_notify(const struct net_bridge *br, int cmd) { struct net_bridge_vlan_group *vg; - struct net_bridge_vlan *v; + struct net_bridge_vlan *v = NULL; struct br_vlan_msg *bvm; struct nlmsghdr *nlh; struct sk_buff *skb; @@ -1647,7 +1653,7 @@ void br_vlan_notify(const struct net_bridge *br, goto out_kfree; } - if (!br_vlan_fill_vids(skb, vid, vid_range, flags)) + if (!br_vlan_fill_vids(skb, vid, vid_range, v, flags)) goto out_err; nlmsg_end(skb, nlh); @@ -1665,7 +1671,8 @@ static bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, const struct net_bridge_vlan *range_end) { return v_curr->vid - range_end->vid == 1 && - range_end->flags == v_curr->flags; + range_end->flags == v_curr->flags && + br_vlan_opts_eq(v_curr, range_end); } static int br_vlan_dump_dev(const struct net_device *dev, @@ -1729,7 +1736,8 @@ static int br_vlan_dump_dev(const struct net_device *dev, u16 flags = br_vlan_flags(range_start, pvid); if (!br_vlan_fill_vids(skb, range_start->vid, - range_end->vid, flags)) { + range_end->vid, range_start, + flags)) { err = -EMSGSIZE; break; } @@ -1748,7 +1756,7 @@ static int br_vlan_dump_dev(const struct net_device *dev, */ if (!err && range_start && !br_vlan_fill_vids(skb, range_start->vid, range_end->vid, - br_vlan_flags(range_start, pvid))) + range_start, br_vlan_flags(range_start, pvid))) err = -EMSGSIZE; cb->args[1] = err ? idx : 0; diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c new file mode 100644 index 000000000000..55fcdc9c380c --- /dev/null +++ b/net/bridge/br_vlan_options.c @@ -0,0 +1,25 @@ +// 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 "br_private.h" + +/* check if the options between two vlans are equal */ +bool br_vlan_opts_eq(const struct net_bridge_vlan *v1, + const struct net_bridge_vlan *v2) +{ + return true; +} + +bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v) +{ + return true; +} + +size_t br_vlan_opts_nl_size(void) +{ + return 0; +} |