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mptcp: add fullmesh flag check for adding address

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The fullmesh flag mustn't be used with the signal flag when adding an
address. This patch added the necessary flags check for this case.

Fixes: 73c762c1f0 ("mptcp: set fullmesh flag in pm_netlink")
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Geliang Tang 2022-03-07 12:44:39 -08:00 committed by Jakub Kicinski
parent 69c6ce7b6e
commit 0dc626e5e8
1 changed files with 6 additions and 0 deletions
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6
net/mptcp/pm_netlink.c
View file

@ -1264,6 +1264,12 @@ static int mptcp_nl_cmd_add_addr(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
}
if (addr.flags & MPTCP_PM_ADDR_FLAG_SIGNAL &&
addr.flags & MPTCP_PM_ADDR_FLAG_FULLMESH) {
GENL_SET_ERR_MSG(info, "flags mustn't have both signal and fullmesh");
return -EINVAL;
}
if (addr.flags & MPTCP_PM_ADDR_FLAG_IMPLICIT) {
GENL_SET_ERR_MSG(info, "can't create IMPLICIT endpoint");
return -EINVAL;