From owner-svn-src-stable@FreeBSD.ORG Thu Mar 7 21:36:05 2013 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 41CD0E46; Thu, 7 Mar 2013 21:36:05 +0000 (UTC) (envelope-from tuexen@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id 03D6D5EF; Thu, 7 Mar 2013 21:36:05 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.6/8.14.6) with ESMTP id r27La42U018426; Thu, 7 Mar 2013 21:36:04 GMT (envelope-from tuexen@svn.freebsd.org) Received: (from tuexen@localhost) by svn.freebsd.org (8.14.6/8.14.5/Submit) id r27La4LE018425; Thu, 7 Mar 2013 21:36:04 GMT (envelope-from tuexen@svn.freebsd.org) Message-Id: <201303072136.r27La4LE018425@svn.freebsd.org> From: Michael Tuexen Date: Thu, 7 Mar 2013 21:36:04 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r247952 - stable/8/sys/netinet X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Mar 2013 21:36:05 -0000 Author: tuexen Date: Thu Mar 7 21:36:04 2013 New Revision: 247952 URL: http://svnweb.freebsd.org/changeset/base/247952 Log: MFC r237541: Remove redundant check. Modified: stable/8/sys/netinet/sctp_input.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/netinet/ (props changed) Modified: stable/8/sys/netinet/sctp_input.c ============================================================================== --- stable/8/sys/netinet/sctp_input.c Thu Mar 7 21:34:16 2013 (r247951) +++ stable/8/sys/netinet/sctp_input.c Thu Mar 7 21:36:04 2013 (r247952) @@ -2392,7 +2392,7 @@ sctp_handle_cookie_echo(struct mbuf *m, uint8_t calc_sig[SCTP_SIGNATURE_SIZE], tmp_sig[SCTP_SIGNATURE_SIZE]; uint8_t *sig; uint8_t cookie_ok = 0; - unsigned int size_of_pkt, sig_offset, cookie_offset; + unsigned int sig_offset, cookie_offset; unsigned int cookie_len; struct timeval now; struct timeval time_expires; @@ -2434,7 +2434,6 @@ sctp_handle_cookie_echo(struct mbuf *m, lsin->sin_len = sizeof(*lsin); lsin->sin_port = sh->dest_port; lsin->sin_addr.s_addr = iph->ip_dst.s_addr; - size_of_pkt = SCTP_GET_IPV4_LENGTH(iph); break; } #endif @@ -2452,7 +2451,6 @@ sctp_handle_cookie_echo(struct mbuf *m, ip6 = mtod(m, struct ip6_hdr *); lsin6->sin6_port = sh->dest_port; lsin6->sin6_addr = ip6->ip6_dst; - size_of_pkt = SCTP_GET_IPV6_LENGTH(ip6) + iphlen; break; } #endif @@ -2476,11 +2474,10 @@ sctp_handle_cookie_echo(struct mbuf *m, */ return (NULL); } - if (cookie_len > size_of_pkt || - cookie_len < sizeof(struct sctp_cookie_echo_chunk) + + if (cookie_len < sizeof(struct sctp_cookie_echo_chunk) + sizeof(struct sctp_init_chunk) + sizeof(struct sctp_init_ack_chunk) + SCTP_SIGNATURE_SIZE) { - /* cookie too long! or too small */ + /* cookie too small */ return (NULL); } /* @@ -2488,11 +2485,6 @@ sctp_handle_cookie_echo(struct mbuf *m, * calculated in the sctp_hmac_m() call). */ sig_offset = offset + cookie_len - SCTP_SIGNATURE_SIZE; - if (sig_offset > size_of_pkt) { - /* packet not correct size! */ - /* XXX this may already be accounted for earlier... */ - return (NULL); - } m_sig = m_split(m, sig_offset, M_DONTWAIT); if (m_sig == NULL) { /* out of memory or ?? */