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authorRoopa Prabhu <roopa@cumulusnetworks.com>2015-06-17 11:07:01 -0700
committerDavid S. Miller <davem@davemloft.net>2015-06-21 10:23:04 -0700
commita2bb6d7d6f4249691b6a554cde59969d55b0d9c3 (patch)
tree81313b38cf216d7f936de27c3d244eaf7584b93d
parentb42be38b2778eda2237fc759e55e3b698b05b315 (diff)
downloadlinux-a2bb6d7d6f4249691b6a554cde59969d55b0d9c3.tar.bz2
ipv4: include NLM_F_APPEND flag in append route notifications
This patch adds NLM_F_APPEND flag to struct nlmsg_hdr->nlmsg_flags in newroute notifications if the route add was an append. (This is similar to how NLM_F_REPLACE is already part of new route replace notifications today) This helps userspace determine if the route add operation was an append. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/fib_trie.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3c699c4e90a4..6c666a9f1bd5 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1082,6 +1082,7 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
struct trie *t = (struct trie *)tb->tb_data;
struct fib_alias *fa, *new_fa;
struct key_vector *l, *tp;
+ unsigned int nlflags = 0;
struct fib_info *fi;
u8 plen = cfg->fc_dst_len;
u8 slen = KEYLENGTH - plen;
@@ -1201,7 +1202,9 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
if (fa_match)
goto out;
- if (!(cfg->fc_nlflags & NLM_F_APPEND))
+ if (cfg->fc_nlflags & NLM_F_APPEND)
+ nlflags = NLM_F_APPEND;
+ else
fa = fa_first;
}
err = -ENOENT;
@@ -1238,7 +1241,7 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
rt_cache_flush(cfg->fc_nlinfo.nl_net);
rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, new_fa->tb_id,
- &cfg->fc_nlinfo, 0);
+ &cfg->fc_nlinfo, nlflags);
succeeded:
return 0;