diff options
| author | Thomas Graf <tgraf@suug.ch> | 2007-03-22 23:29:10 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:27:29 -0700 |
| commit | 45e7ae7f716086994e4e747226881f901c67b031 (patch) | |
| tree | 8f61cb9e3f67ac433e915176c2bf233d8899691d | |
| parent | d35b685640aeb39eb4f5e98c75e8e001e406f9a3 (diff) | |
| download | linux-rpi3-45e7ae7f716086994e4e747226881f901c67b031.tar.gz linux-rpi3-45e7ae7f716086994e4e747226881f901c67b031.tar.bz2 linux-rpi3-45e7ae7f716086994e4e747226881f901c67b031.zip | |
[NETLINK]: Ignore control messages directly in netlink_run_queue()
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>
| -rw-r--r-- | net/core/rtnetlink.c | 4 | ||||
| -rw-r--r-- | net/netlink/af_netlink.c | 4 | ||||
| -rw-r--r-- | net/netlink/genetlink.c | 6 | ||||
| -rw-r--r-- | net/xfrm/xfrm_user.c | 4 |
4 files changed, 4 insertions, 14 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index cc09283fd76a..b2136accd267 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -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; diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 7b455980e9bf..5d1079b1838c 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -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 diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 039516f6cd80..95391e609046 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -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; diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 913c8b727d8f..4d2f2094e6df 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -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; |