From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49494) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aAP01-0004Tm-Ta for qemu-devel@nongnu.org; Sat, 19 Dec 2015 16:25:10 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aAOzy-000672-It for qemu-devel@nongnu.org; Sat, 19 Dec 2015 16:25:09 -0500 Received: from domu-toccata.ens-lyon.fr ([140.77.166.138]:34576 helo=sonata.ens-lyon.org) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aAOzy-00066h-D3 for qemu-devel@nongnu.org; Sat, 19 Dec 2015 16:25:06 -0500 From: Samuel Thibault Date: Sat, 19 Dec 2015 22:24:55 +0100 Message-Id: <1450560303-11330-1-git-send-email-samuel.thibault@ens-lyon.org> In-Reply-To: <20151219212440.GC4287@var.home> References: <20151219212440.GC4287@var.home> Subject: [Qemu-devel] [PATCH 1/9] slirp: goto bad in udp_input if sosendto fails List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Thomas Huth , zhanghailiang , Li Zhijian , Stefan Hajnoczi , Jason Wang , Dave Gilbert , Vasiliy Tolstov , Huangpeng , Gonglei , Jan Kiszka , Samuel Thibault , Yang Hongyang , Guillaume Subiron From: Guillaume Subiron Before this patch, if sosendto fails, udp_input is executed as if the packet was sent, recording the packet for icmp errors, which does not makes sense since the packet was not actually sent, errors would be related to a previous packet. This patch adds a goto bad to cut the execution of this function. Signed-off-by: Guillaume Subiron Signed-off-by: Samuel Thibault Reviewed-by: Thomas Huth --- slirp/udp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/slirp/udp.c b/slirp/udp.c index fee13b4..ce63414 100644 --- a/slirp/udp.c +++ b/slirp/udp.c @@ -218,6 +218,7 @@ udp_input(register struct mbuf *m, int iphlen) *ip=save_ip; DEBUG_MISC((dfd,"udp tx errno = %d-%s\n",errno,strerror(errno))); icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,strerror(errno)); + goto bad; } m_free(so->so_m); /* used for ICMP if error on sorecvfrom */ -- 2.6.2