From nobody Mon Oct 25 20:25:49 2021 X-Original-To: dev-commits-src-main@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 E7FBE1812A0B; Mon, 25 Oct 2021 20:25:49 +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 4HdRKn6DkDz4vKc; Mon, 25 Oct 2021 20:25:49 +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 B70BD7358; Mon, 25 Oct 2021 20:25:49 +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 19PKPnSP032074; Mon, 25 Oct 2021 20:25:49 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 19PKPnps032073; Mon, 25 Oct 2021 20:25:49 GMT (envelope-from git) Date: Mon, 25 Oct 2021 20:25:49 GMT Message-Id: <202110252025.19PKPnps032073@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Ed Maste Subject: git: fc79cf4fea72 - main - iscsid: set max_recv_data_segment_length to what we advertise List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@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/main X-Git-Reftype: branch X-Git-Commit: fc79cf4fea7221fa62d480648f05e30f7df73f92 Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=fc79cf4fea7221fa62d480648f05e30f7df73f92 commit fc79cf4fea7221fa62d480648f05e30f7df73f92 Author: Ed Maste AuthorDate: 2021-10-21 15:09:58 +0000 Commit: Ed Maste CommitDate: 2021-10-25 20:25:15 +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 --- 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");