diff options
| author | David Ahern <dsa@cumulusnetworks.com> | 2017-01-11 15:42:17 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-04 09:45:08 +0100 |
| commit | 40e7c725ab0f135aab0d969d9237426b55a14641 (patch) | |
| tree | cf58c241fe2e3cedc2dc4acf51df1e84df49b032 | |
| parent | 2e84b8ce6fc3228e0589e6f1215af99613963f0d (diff) | |
net: ipv4: fix table id in getroute response
[ Upstream commit 8a430ed50bb1b19ca14a46661f3b1b35f2fb5c39 ]
rtm_table is an 8-bit field while table ids are allowed up to u32. Commit
709772e6e065 ("net: Fix routing tables with id > 255 for legacy software")
added the preference to set rtm_table in dumps to RT_TABLE_COMPAT if the
table id is > 255. The table id returned on get route requests should do
the same.
Fixes: c36ba6603a11 ("net: Allow user to get table id from route lookup")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv4/route.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 7ceb8a574a50..ef2f527a119b 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2430,7 +2430,7 @@ static int rt_fill_info(struct net *net, __be32 dst, __be32 src, u32 table_id, r->rtm_dst_len = 32; r->rtm_src_len = 0; r->rtm_tos = fl4->flowi4_tos; - r->rtm_table = table_id; + r->rtm_table = table_id < 256 ? table_id : RT_TABLE_COMPAT; if (nla_put_u32(skb, RTA_TABLE, table_id)) goto nla_put_failure; r->rtm_type = rt->rt_type; |