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mptcp: make sure flag signal is set when add addr with port 

When add address with port, it is mean to send an ADD_ADDR to remote,
so it must have flag signal set.

Fixes: 42fbca91cd ("mptcp: add support for port based endpoint")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David Ahern <dsahern@kernel.org>
This commit is contained in:
Jianguo Wu 2021-04-23 18:24:50 +08:00 committed by David Ahern
parent e1e089d1f2
commit 7f1d58d1a1
1 changed files with 3 additions and 0 deletions
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3
ip/ipmptcp.c
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@ -143,6 +143,9 @@ static int mptcp_parse_opt(int argc, char **argv, struct nlmsghdr *n,
if (!id_set && !adding) if (!id_set && !adding)
missarg("ID"); missarg("ID");
if (port && !(flags & MPTCP_PM_ADDR_FLAG_SIGNAL))
invarg("flags must have signal when using port", "port");
attr_addr = addattr_nest(n, MPTCP_BUFLEN, attr_addr = addattr_nest(n, MPTCP_BUFLEN,
MPTCP_PM_ATTR_ADDR | NLA_F_NESTED); MPTCP_PM_ATTR_ADDR | NLA_F_NESTED);
if (id_set) if (id_set)