netfilter-devel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ken-ichirou MATSUZAWA <chamaken@gmail.com>
To: The netfilter developer mailinglist <netfilter-devel@vger.kernel.org>
Subject: [RFC PATCH 4/5] netlink: mmap: update tx type check
Date: Wed, 22 Jul 2015 10:14:04 +0900	[thread overview]
Message-ID: <20150722011404.GE30012@gmail.com> (raw)
In-Reply-To: <20150722010938.GA30012@gmail.com>

We need to accept msg_iter.type 1(WRITE) which is set in sendto/sendmsg.

Signed-off-by: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
---
 net/netlink/af_netlink.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index a6fba4c..7e1610e 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2394,7 +2394,7 @@ static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 	 * sendmsg(), but that's what we've got...
 	 */
 	if (netlink_tx_is_mmaped(sk) &&
-	    msg->msg_iter.type == ITER_IOVEC &&
+	    !(msg->msg_iter.type & (ITER_KVEC | ITER_BVEC)) &&
 	    msg->msg_iter.nr_segs == 1 &&
 	    msg->msg_iter.iov->iov_base == NULL) {
 		err = netlink_mmap_sendmsg(sk, msg, dst_portid, dst_group,
-- 
1.7.10.4


  parent reply	other threads:[~2015-07-22  1:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-22  1:09 [RFC PATCH 0/5] netlink: mmap kernel panic and some issues Ken-ichirou MATSUZAWA
2015-07-22  1:10 ` [RFC PATCH 1/5] netlink: mmap: introduce mmaped skb helper functions Ken-ichirou MATSUZAWA
2015-07-22  1:11 ` [RFC PATCH 2/5] netlink: mmap: apply " Ken-ichirou MATSUZAWA
2015-07-22  1:13 ` [RFC PATCH 3/5] netlink: mmap: fix status for not delivered skb Ken-ichirou MATSUZAWA
2015-07-22  1:14 ` Ken-ichirou MATSUZAWA [this message]
2015-07-22  1:15 ` [RFC PATCH 5/5] netlink: rx mmap: notify only when NL_MMAP_STATUS_VALID frame exists Ken-ichirou MATSUZAWA
2015-07-22 12:50 ` [RFC PATCH 0/5] netlink: mmap kernel panic and some issues Florian Westphal

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20150722011404.GE30012@gmail.com \
    --to=chamaken@gmail.com \
    --cc=netfilter-devel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).