Commit d3c07e5b authored by Yuval Mintz's avatar Yuval Mintz Committed by David S. Miller

ip6mr: Add API for default_rule fib

Add the ability to discern whether a given FIB rule notification relates
to the default rule inserted when registering ip6mr or a different one.

Would later be used by drivers wishing to offload ipv6 multicast routes
but unable to offload rules other than the default one.
Signed-off-by: default avatarYuval Mintz <yuvalm@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 088aa3ee
...@@ -8,6 +8,7 @@ ...@@ -8,6 +8,7 @@
#include <net/net_namespace.h> #include <net/net_namespace.h>
#include <uapi/linux/mroute6.h> #include <uapi/linux/mroute6.h>
#include <linux/mroute_base.h> #include <linux/mroute_base.h>
#include <net/fib_rules.h>
#ifdef CONFIG_IPV6_MROUTE #ifdef CONFIG_IPV6_MROUTE
static inline int ip6_mroute_opt(int opt) static inline int ip6_mroute_opt(int opt)
...@@ -63,6 +64,15 @@ static inline void ip6_mr_cleanup(void) ...@@ -63,6 +64,15 @@ static inline void ip6_mr_cleanup(void)
} }
#endif #endif
#ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
bool ip6mr_rule_default(const struct fib_rule *rule);
#else
static inline bool ip6mr_rule_default(const struct fib_rule *rule)
{
return true;
}
#endif
#define VIFF_STATIC 0x8000 #define VIFF_STATIC 0x8000
struct mfc6_cache_cmp_arg { struct mfc6_cache_cmp_arg {
......
...@@ -268,6 +268,13 @@ static unsigned int ip6mr_rules_seq_read(struct net *net) ...@@ -268,6 +268,13 @@ static unsigned int ip6mr_rules_seq_read(struct net *net)
{ {
return fib_rules_seq_read(net, RTNL_FAMILY_IP6MR); return fib_rules_seq_read(net, RTNL_FAMILY_IP6MR);
} }
bool ip6mr_rule_default(const struct fib_rule *rule)
{
return fib_rule_matchall(rule) && rule->action == FR_ACT_TO_TBL &&
rule->table == RT6_TABLE_DFLT && !rule->l3mdev;
}
EXPORT_SYMBOL(ip6mr_rule_default);
#else #else
#define ip6mr_for_each_table(mrt, net) \ #define ip6mr_for_each_table(mrt, net) \
for (mrt = net->ipv6.mrt6; mrt; mrt = NULL) for (mrt = net->ipv6.mrt6; mrt; mrt = NULL)
......
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