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net: bridge: mcast: prepare query reception for mcast router split 

In preparation for the upcoming split of multicast router state into
their IPv4 and IPv6 variants and as the br_multicast_mark_router() will
be split for that remove the select querier wrapper and instead add
ip4 and ip6 variants for br_multicast_query_received().

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Linus Lüssing 2021-05-13 15:20:46 +02:00 committed by David S. Miller
parent ff391c5d98
commit b19232effd
1 changed files with 27 additions and 26 deletions
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53
net/bridge/br_multicast.c
View File

@ -2615,22 +2615,6 @@ update:
}
#endif
static bool br_multicast_select_querier(struct net_bridge *br,
struct net_bridge_port *port,
struct br_ip *saddr)
{
switch (saddr->proto) {
case htons(ETH_P_IP):
return br_ip4_multicast_select_querier(br, port, saddr->src.ip4);
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
return br_ip6_multicast_select_querier(br, port, &saddr->src.ip6);
#endif
}
return false;
}
static void
br_multicast_update_query_timer(struct net_bridge *br,
struct bridge_mcast_other_query *query,
@ -2708,19 +2692,36 @@ static void br_multicast_mark_router(struct net_bridge *br,
now + br->multicast_querier_interval);
}
static void br_multicast_query_received(struct net_bridge *br,
struct net_bridge_port *port,
struct bridge_mcast_other_query *query,
struct br_ip *saddr,
unsigned long max_delay)
static void
br_ip4_multicast_query_received(struct net_bridge *br,
struct net_bridge_port *port,
struct bridge_mcast_other_query *query,
struct br_ip *saddr,
unsigned long max_delay)
{
if (!br_multicast_select_querier(br, port, saddr))
if (!br_ip4_multicast_select_querier(br, port, saddr->src.ip4))
return;
br_multicast_update_query_timer(br, query, max_delay);
br_multicast_mark_router(br, port);
}
#if IS_ENABLED(CONFIG_IPV6)
static void
br_ip6_multicast_query_received(struct net_bridge *br,
struct net_bridge_port *port,
struct bridge_mcast_other_query *query,
struct br_ip *saddr,
unsigned long max_delay)
{
if (!br_ip6_multicast_select_querier(br, port, &saddr->src.ip6))
return;
br_multicast_update_query_timer(br, query, max_delay);
br_multicast_mark_router(br, port);
}
#endif
static void br_ip4_multicast_query(struct net_bridge *br,
struct net_bridge_port *port,
struct sk_buff *skb,
@ -2768,8 +2769,8 @@ static void br_ip4_multicast_query(struct net_bridge *br,
saddr.proto = htons(ETH_P_IP);
saddr.src.ip4 = iph->saddr;
br_multicast_query_received(br, port, &br->ip4_other_query,
&saddr, max_delay);
br_ip4_multicast_query_received(br, port, &br->ip4_other_query,
&saddr, max_delay);
goto out;
}
@ -2856,8 +2857,8 @@ static int br_ip6_multicast_query(struct net_bridge *br,
saddr.proto = htons(ETH_P_IPV6);
saddr.src.ip6 = ipv6_hdr(skb)->saddr;
br_multicast_query_received(br, port, &br->ip6_other_query,
&saddr, max_delay);
br_ip6_multicast_query_received(br, port, &br->ip6_other_query,
&saddr, max_delay);
goto out;
} else if (!group) {
goto out;