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neighbor: NTF_PROXY is a valid ndm_flag for a dump request 

When dumping proxy entries the dump request has NTF_PROXY set in
ndm_flags. strict mode checking needs to be updated to allow this
flag.

Fixes: 51183d233b ("net/neighbor: Update neigh_dump_info for strict data checking")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-12-19 16:54:38 -08:00 committed by David S. Miller
parent 1b451fb205
commit c0fde870d9
1 changed files with 6 additions and 1 deletions
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7
net/core/neighbour.c
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@ -2494,11 +2494,16 @@ static int neigh_valid_dump_req(const struct nlmsghdr *nlh,
ndm = nlmsg_data(nlh);
if (ndm->ndm_pad1 || ndm->ndm_pad2 || ndm->ndm_ifindex ||
ndm->ndm_state || ndm->ndm_flags || ndm->ndm_type) {
ndm->ndm_state || ndm->ndm_type) {
NL_SET_ERR_MSG(extack, "Invalid values in header for neighbor dump request");
return -EINVAL;
}
if (ndm->ndm_flags & ~NTF_PROXY) {
NL_SET_ERR_MSG(extack, "Invalid flags in header for neighbor dump request");
return -EINVAL;
}
err = nlmsg_parse_strict(nlh, sizeof(struct ndmsg), tb, NDA_MAX,
NULL, extack);
} else {