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author | Yotam Gigi <yotamg@mellanox.com> | 2017-09-27 08:23:16 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2017-09-27 11:33:27 -0700 |
commit | 478e4c2f0067d57d7c17059caafab026ca32084a (patch) | |
tree | 26862cf869570e240ab2f6bf99fd0431ea1526e0 /include | |
parent | c7c0bbeae9501a7e42f2fd306d6a6399aca688b6 (diff) | |
download | linux-stable-478e4c2f0067d57d7c17059caafab026ca32084a.tar.gz linux-stable-478e4c2f0067d57d7c17059caafab026ca32084a.tar.bz2 linux-stable-478e4c2f0067d57d7c17059caafab026ca32084a.zip |
net: mroute: Check if rule is a default rule
When the ipmr starts, it adds one default FIB rule that matches all packets
and sends them to the DEFAULT (multicast) FIB table. A more complex rule
can be added by user to specify that for a specific interface, a packet
should be look up at either an arbitrary table or according to the l3mdev
of the interface.
For drivers willing to offload the ipmr logic into a hardware but don't
want to offload all the FIB rules functionality, provide a function that
can indicate whether the FIB rule is the default multicast rule, thus only
one routing table is needed.
This way, a driver can register to the FIB notification chain, get
notifications about FIB rules added and trigger some kind of an internal
abort mechanism when a non default rule is added by the user.
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/mroute.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mroute.h b/include/linux/mroute.h index 5566580811ce..b072a84fbe1c 100644 --- a/include/linux/mroute.h +++ b/include/linux/mroute.h @@ -5,6 +5,7 @@ #include <linux/pim.h> #include <linux/rhashtable.h> #include <net/sock.h> +#include <net/fib_rules.h> #include <net/fib_notifier.h> #include <uapi/linux/mroute.h> @@ -19,6 +20,7 @@ int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *); int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg); int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg); int ip_mr_init(void); +bool ipmr_rule_default(const struct fib_rule *rule); #else static inline int ip_mroute_setsockopt(struct sock *sock, int optname, char __user *optval, unsigned int optlen) @@ -46,6 +48,11 @@ static inline int ip_mroute_opt(int opt) { return 0; } + +static inline bool ipmr_rule_default(const struct fib_rule *rule) +{ + return true; +} #endif struct vif_device { |