[PATCH net-next] ipv4: include NLM_F_APPEND flag in append route notifications
From: Roopa Prabhu <hidden>
Date: 2015-06-16 16:16:38
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
From: Roopa Prabhu <redacted> 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 <redacted> --- net/ipv4/fib_trie.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3c699c4..38ffc20 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;
@@ -1203,6 +1204,8 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg) if (!(cfg->fc_nlflags & NLM_F_APPEND)) fa = fa_first; + else + nlflags |= NLM_F_APPEND; } err = -ENOENT; if (!(cfg->fc_nlflags & NLM_F_CREATE))
@@ -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;
--
1.7.10.4