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[NETLINK]: Ignore control messages directly in netlink_run_queue()

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Changes netlink_rcv_skb() to skip netlink controll messages and don't
pass them on to the message handler.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2007-03-22 23:29:10 -07:00 committed by David S. Miller
parent d35b685640
commit 45e7ae7f71
4 changed files with 4 additions and 14 deletions
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4
net/core/rtnetlink.c
View file

@ -864,10 +864,6 @@ rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
type = nlh->nlmsg_type;
/* A control message: ignore them */
if (type < RTM_BASE)
return 0;
/* Unknown message: reply with EINVAL */
if (type > RTM_MAX)
goto err_inval;

4
net/netlink/af_netlink.c
View file

@ -1479,6 +1479,10 @@ static int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *,
if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
goto skip;
/* Skip control messages */
if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
goto skip;
if (cb(skb, nlh, &err) < 0) {
/* Not an error, but we have to interrupt processing
* here. Note: that in this case we do not pull

6
net/netlink/genetlink.c
View file

@ -304,9 +304,6 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
struct genlmsghdr *hdr = nlmsg_data(nlh);
int hdrlen, err = -EINVAL;
if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
goto ignore;
family = genl_family_find_byid(nlh->nlmsg_type);
if (family == NULL) {
err = -ENOENT;
@ -364,9 +361,6 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
*errp = err = ops->doit(skb, &info);
return err;
ignore:
return 0;
errout:
*errp = err;
return -1;

4
net/xfrm/xfrm_user.c
View file

@ -1860,10 +1860,6 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *err
type = nlh->nlmsg_type;
/* A control message: ignore them */
if (type < XFRM_MSG_BASE)
return 0;
/* Unknown message: reply with EINVAL */
if (type > XFRM_MSG_MAX)
goto err_einval;