From nobody Wed Nov 03 20:48:36 2021 X-Original-To: dev-commits-src-branches@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 30EF9183837A; Wed, 3 Nov 2021 20:48:37 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4HkzPx0qthz3msy; Wed, 3 Nov 2021 20:48:37 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id EB80F1F5E7; Wed, 3 Nov 2021 20:48:36 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 1A3Kmamx057814; Wed, 3 Nov 2021 20:48:36 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1A3KmagK057813; Wed, 3 Nov 2021 20:48:36 GMT (envelope-from git) Date: Wed, 3 Nov 2021 20:48:36 GMT Message-Id: <202111032048.1A3KmagK057813@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Ed Maste Subject: git: 1da2deab7c2f - stable/13 - iscsid: set max_recv_data_segment_length to what we advertise List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-branches@freebsd.org X-BeenThere: dev-commits-src-branches@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: emaste X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 1da2deab7c2f195ea0e32878951833496f5a1a68 Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch stable/13 has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=1da2deab7c2f195ea0e32878951833496f5a1a68 commit 1da2deab7c2f195ea0e32878951833496f5a1a68 Author: Ed Maste AuthorDate: 2021-10-21 15:09:58 +0000 Commit: Ed Maste CommitDate: 2021-11-03 20:47:11 +0000 iscsid: set max_recv_data_segment_length to what we advertise Previously we updated the conection's conn_max_recv_data_segment_length only when we received a response containing MaxRecvDataSegmentLength from the target. If the target did not send MaxRecvDataSegmentLength then we left conn_max_recv_data_segment_length at the default (i.e., 8192). A target could then send more data than that defult (up to our advertised maximum), and we would drop the connection. RFC 7143 specifies that MaxRecvDataSegmentLength is Declarative, not negotiated. Just set conn_max_recv_data_segment_length to our advertised value in login_negotiate(). PR: 259355 Reviewed by: mav MFC after: 1 week Fixes: a15fbc904a4d ("Alike to r312190 decouple iSCSI...") Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D32605 (cherry picked from commit fc79cf4fea7221fa62d480648f05e30f7df73f92) --- usr.sbin/iscsid/login.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/usr.sbin/iscsid/login.c b/usr.sbin/iscsid/login.c index 864695dcbdb5..3f0020ef140b 100644 --- a/usr.sbin/iscsid/login.c +++ b/usr.sbin/iscsid/login.c @@ -403,9 +403,6 @@ login_negotiate_key(struct connection *conn, const char *name, tmp = isl->isl_max_send_data_segment_length; } conn->conn_max_send_data_segment_length = tmp; - /* We received target's limit, that means it accepted our's. */ - conn->conn_max_recv_data_segment_length = - isl->isl_max_recv_data_segment_length; } else if (strcmp(name, "MaxBurstLength") == 0) { tmp = strtoul(value, NULL, 10); if (tmp <= 0) @@ -538,6 +535,9 @@ login_negotiate(struct connection *conn) isl->isl_max_recv_data_segment_length); } + conn->conn_max_recv_data_segment_length = + isl->isl_max_recv_data_segment_length; + keys_add(request_keys, "DefaultTime2Wait", "0"); keys_add(request_keys, "DefaultTime2Retain", "0"); keys_add(request_keys, "ErrorRecoveryLevel", "0");