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mptcp: add fullmesh flag check for adding address 

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; 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) { if (addr.flags & MPTCP_PM_ADDR_FLAG_IMPLICIT) {
GENL_SET_ERR_MSG(info, "can't create IMPLICIT endpoint"); GENL_SET_ERR_MSG(info, "can't create IMPLICIT endpoint");
return -EINVAL; return -EINVAL;