diff options
| author |   Ido Schimmel <idosch@mellanox.com> | 2019-12-14 17:53:10 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-12-16 16:14:42 -0800 |
| commit | a8674f753e36f566d6c1d992ab85323d784281d9 (patch) | |
| tree | b5f938697199be8aa7ef675c275a0f7b3c4a8bd0 /net | |
| parent | ipv4: Notify route if replacing currently offloaded one (diff) | |
| download | linux-dev-a8674f753e36f566d6c1d992ab85323d784281d9.tar.xz linux-dev-a8674f753e36f566d6c1d992ab85323d784281d9.zip | |
ipv4: Notify newly added route if should be offloaded
When a route is added, it should only be notified in case it is the
first route in the FIB alias list with the given {prefix, prefix length,
table ID}. Otherwise, it is not used in the data path and should not be
considered by switch drivers.
v2:
* Convert to use fib_find_alias() instead of fib_find_first_alias()
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/ipv4/fib_trie.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 4c80ac0344f4..f56945d00d7a 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1295,6 +1295,16 @@ int fib_table_insert(struct net *net, struct fib_table *tb, if (WARN_ON_ONCE(!l)) goto out_free_new_fa; + if (fib_find_alias(&l->leaf, new_fa->fa_slen, 0, 0, tb->tb_id, true) == + new_fa) { + enum fib_event_type fib_event; + + fib_event = FIB_EVENT_ENTRY_REPLACE_TMP; + err = call_fib_entry_notifiers(net, fib_event, key, plen, + new_fa, extack); + if (err) + goto out_remove_new_fa; + } err = call_fib_entry_notifiers(net, event, key, plen, new_fa, extack); if (err) goto out_remove_new_fa; |