Netdev Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Nikolay Aleksandrov <razor@blackwall.org>
To: netdev@vger.kernel.org
Cc: roopa@nvidia.com, bridge@lists.linux-foundation.org,
	Nikolay Aleksandrov <nikolay@nvidia.com>
Subject: [PATCH net-next 01/15] net: bridge: vlan: add support for mcast igmp/mld version global options
Date: Tue, 10 Aug 2021 18:29:19 +0300	[thread overview]
Message-ID: <20210810152933.178325-2-razor@blackwall.org> (raw)
In-Reply-To: <20210810152933.178325-1-razor@blackwall.org>

From: Nikolay Aleksandrov <nikolay@nvidia.com>

Add support to change and retrieve global vlan IGMP/MLD versions.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
---
 include/uapi/linux/if_bridge.h |  2 ++
 net/bridge/br_multicast.c      | 18 ++++++++-------
 net/bridge/br_netlink.c        |  6 +++--
 net/bridge/br_private.h        | 26 ++++++++++++++++++++--
 net/bridge/br_sysfs_br.c       |  4 ++--
 net/bridge/br_vlan_options.c   | 40 ++++++++++++++++++++++++++++++++--
 6 files changed, 80 insertions(+), 16 deletions(-)

diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index f7997a3f7f82..07acfcc0466c 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -549,6 +549,8 @@ enum {
 	BRIDGE_VLANDB_GOPTS_ID,
 	BRIDGE_VLANDB_GOPTS_RANGE,
 	BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING,
+	BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION,
+	BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION,
 	__BRIDGE_VLANDB_GOPTS_MAX
 };
 #define BRIDGE_VLANDB_GOPTS_MAX (__BRIDGE_VLANDB_GOPTS_MAX - 1)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 470f1ec3b579..643b69d767f7 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -4327,7 +4327,8 @@ int br_multicast_set_querier(struct net_bridge *br, unsigned long val)
 	return 0;
 }
 
-int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val)
+int br_multicast_set_igmp_version(struct net_bridge_mcast *brmctx,
+				  unsigned long val)
 {
 	/* Currently we support only version 2 and 3 */
 	switch (val) {
@@ -4338,15 +4339,16 @@ int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val)
 		return -EINVAL;
 	}
 
-	spin_lock_bh(&br->multicast_lock);
-	br->multicast_ctx.multicast_igmp_version = val;
-	spin_unlock_bh(&br->multicast_lock);
+	spin_lock_bh(&brmctx->br->multicast_lock);
+	brmctx->multicast_igmp_version = val;
+	spin_unlock_bh(&brmctx->br->multicast_lock);
 
 	return 0;
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
-int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val)
+int br_multicast_set_mld_version(struct net_bridge_mcast *brmctx,
+				 unsigned long val)
 {
 	/* Currently we support version 1 and 2 */
 	switch (val) {
@@ -4357,9 +4359,9 @@ int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val)
 		return -EINVAL;
 	}
 
-	spin_lock_bh(&br->multicast_lock);
-	br->multicast_ctx.multicast_mld_version = val;
-	spin_unlock_bh(&br->multicast_lock);
+	spin_lock_bh(&brmctx->br->multicast_lock);
+	brmctx->multicast_mld_version = val;
+	spin_unlock_bh(&brmctx->br->multicast_lock);
 
 	return 0;
 }
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 3d5860e41084..6cfb0b7cad82 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1443,7 +1443,8 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
 		__u8 igmp_version;
 
 		igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]);
-		err = br_multicast_set_igmp_version(br, igmp_version);
+		err = br_multicast_set_igmp_version(&br->multicast_ctx,
+						    igmp_version);
 		if (err)
 			return err;
 	}
@@ -1453,7 +1454,8 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
 		__u8 mld_version;
 
 		mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]);
-		err = br_multicast_set_mld_version(br, mld_version);
+		err = br_multicast_set_mld_version(&br->multicast_ctx,
+						   mld_version);
 		if (err)
 			return err;
 	}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 762e7220cc2d..1cc00d2f9156 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -896,9 +896,11 @@ int br_multicast_toggle(struct net_bridge *br, unsigned long val,
 			struct netlink_ext_ack *extack);
 int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
 int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
-int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val);
+int br_multicast_set_igmp_version(struct net_bridge_mcast *brmctx,
+				  unsigned long val);
 #if IS_ENABLED(CONFIG_IPV6)
-int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val);
+int br_multicast_set_mld_version(struct net_bridge_mcast *brmctx,
+				 unsigned long val);
 #endif
 struct net_bridge_mdb_entry *
 br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst);
@@ -1178,6 +1180,19 @@ br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx)
 	       (br_multicast_port_ctx_is_vlan(pmctx) &&
 		pmctx->vlan->state == BR_STATE_BLOCKING);
 }
+
+static inline bool
+br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1,
+			       const struct net_bridge_mcast *brmctx2)
+{
+	return brmctx1->multicast_igmp_version ==
+	       brmctx2->multicast_igmp_version &&
+#if IS_ENABLED(CONFIG_IPV6)
+	       brmctx1->multicast_mld_version ==
+	       brmctx2->multicast_mld_version &&
+#endif
+	       true;
+}
 #else
 static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx,
 				   struct net_bridge_mcast_port **pmctx,
@@ -1343,6 +1358,13 @@ static inline int br_mdb_replay(struct net_device *br_dev,
 {
 	return -EOPNOTSUPP;
 }
+
+static inline bool
+br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1,
+			       const struct net_bridge_mcast *brmctx2)
+{
+	return true;
+}
 #endif
 
 /* br_vlan.c */
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 953d544663d5..08e31debd6f2 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -520,7 +520,7 @@ static ssize_t multicast_igmp_version_show(struct device *d,
 static int set_multicast_igmp_version(struct net_bridge *br, unsigned long val,
 				      struct netlink_ext_ack *extack)
 {
-	return br_multicast_set_igmp_version(br, val);
+	return br_multicast_set_igmp_version(&br->multicast_ctx, val);
 }
 
 static ssize_t multicast_igmp_version_store(struct device *d,
@@ -757,7 +757,7 @@ static ssize_t multicast_mld_version_show(struct device *d,
 static int set_multicast_mld_version(struct net_bridge *br, unsigned long val,
 				     struct netlink_ext_ack *extack)
 {
-	return br_multicast_set_mld_version(br, val);
+	return br_multicast_set_mld_version(&br->multicast_ctx, val);
 }
 
 static ssize_t multicast_mld_version_store(struct device *d,
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index 4ef975b20185..ac32fb40b7ba 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -264,7 +264,9 @@ bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
 {
 	return v_curr->vid - r_end->vid == 1 &&
 	       ((v_curr->priv_flags ^ r_end->priv_flags) &
-		BR_VLFLAG_GLOBAL_MCAST_ENABLED) == 0;
+		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,
@@ -285,8 +287,16 @@ bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING,
-		       !!(v_opts->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)))
+		       !!(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))
+		goto out_err;
+
+#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
 
 	nla_nest_end(skb, nest);
@@ -305,6 +315,8 @@ static size_t rtnl_vlan_global_opts_nlmsg_size(void)
 		+ 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 */
 #endif
 		+ nla_total_size(sizeof(u16)); /* BRIDGE_VLANDB_GOPTS_RANGE */
 }
@@ -359,6 +371,8 @@ static int br_vlan_process_global_one_opts(const struct net_bridge *br,
 					   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]) {
@@ -368,6 +382,26 @@ static int br_vlan_process_global_one_opts(const struct net_bridge *br,
 		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 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
 
 	return 0;
@@ -377,6 +411,8 @@ 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_IGMP_VERSION]	= { .type = NLA_U8 },
 };
 
 int br_vlan_rtm_process_global_options(struct net_device *dev,
-- 
2.31.1


  reply	other threads:[~2021-08-10 15:30 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-10 15:29 [PATCH net-next 00/15] net: bridge: vlan: add global mcast options Nikolay Aleksandrov
2021-08-10 15:29 ` Nikolay Aleksandrov [this message]
2021-08-10 15:29 ` [PATCH net-next 02/15] net: bridge: vlan: add support for mcast last member count global option Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 03/15] net: bridge: vlan: add support for mcast startup query " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 04/15] net: bridge: vlan: add support for mcast last member interval " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 05/15] net: bridge: vlan: add support for mcast membership " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 06/15] net: bridge: vlan: add support for mcast querier " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 07/15] net: bridge: vlan: add support for mcast query " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 08/15] net: bridge: vlan: add support for mcast query response " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 09/15] net: bridge: vlan: add support for mcast startup query " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 10/15] net: bridge: mcast: move querier state to the multicast context Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 11/15] net: bridge: mcast: querier and query state affect only current context type Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 12/15] net: bridge: vlan: add support for mcast querier global option Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 13/15] net: bridge: vlan: add support for mcast router " Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 14/15] net: bridge: mcast: use the proper multicast context when dumping router ports Nikolay Aleksandrov
2021-08-10 15:29 ` [PATCH net-next 15/15] net: bridge: vlan: use br_rports_fill_info() to export mcast " Nikolay Aleksandrov
2021-08-11 12:50 ` [PATCH net-next 00/15] net: bridge: vlan: add global mcast options patchwork-bot+netdevbpf

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210810152933.178325-2-razor@blackwall.org \
    --to=razor@blackwall.org \
    --cc=bridge@lists.linux-foundation.org \
    --cc=netdev@vger.kernel.org \
    --cc=nikolay@nvidia.com \
    --cc=roopa@nvidia.com \
    --subject='Re: [PATCH net-next 01/15] net: bridge: vlan: add support for mcast igmp/mld version global options' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).