From ae677bbb4441309e1827e60413de92363153dccb Mon Sep 17 00:00:00 2001 From: David Ahern Date: Wed, 24 Oct 2018 12:59:01 -0700 Subject: net: Don't return invalid table id error when dumping all families When doing a route dump across all address families, do not error out if the table does not exist. This allows a route dump for AF_UNSPEC with a table id that may only exist for some of the families. Do return the table does not exist error if dumping routes for a specific family and the table does not exist. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv4/ipmr.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/ipv4/ipmr.c') diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 7a3e2acda94c..a6defbec4f1b 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -2542,6 +2542,9 @@ static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb) mrt = ipmr_get_table(sock_net(skb->sk), filter.table_id); if (!mrt) { + if (filter.dump_all_families) + return skb->len; + NL_SET_ERR_MSG(cb->extack, "ipv4: MR table does not exist"); return -ENOENT; } -- cgit v1.2.3-59-g8ed1b