diff options
| author | Yasuyuki Kozakai | 2005-12-05 13:33:26 -0800 |
|---|---|---|
| committer | David S. Miller | 2005-12-05 13:33:26 -0800 |
| commit | 3ebbe0cdd41f62e5c79cb4d7aa42a1ca50d7d2f2 (patch) | |
| tree | 127df7610279a985d9045df00a01ae6882f8626b /net | |
| parent | f16c910724250c1af0f53111b4c76505000819f6 (diff) | |
[NETFILTER]: nfnetlink: Fix calculation of minimum message length
At least, valid nfnetlink message should have nlmsghdr and nfgenmsg.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nfnetlink.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c index a60c59b97631..95fdf04f1d88 100644 --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -162,7 +162,7 @@ nfnetlink_check_attributes(struct nfnetlink_subsystem *subsys, return -EINVAL; } - min_len = NLMSG_ALIGN(sizeof(struct nfgenmsg)); + min_len = NLMSG_SPACE(sizeof(struct nfgenmsg)); if (unlikely(nlh->nlmsg_len < min_len)) return -EINVAL; @@ -236,8 +236,7 @@ static inline int nfnetlink_rcv_msg(struct sk_buff *skb, } /* All the messages must at least contain nfgenmsg */ - if (nlh->nlmsg_len < - NLMSG_LENGTH(NLMSG_ALIGN(sizeof(struct nfgenmsg)))) { + if (nlh->nlmsg_len < NLMSG_SPACE(sizeof(struct nfgenmsg))) { DEBUGP("received message was too short\n"); return 0; } |