From owner-dev-commits-src-all@freebsd.org Wed Feb 3 23:00:20 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A5EC752EFF2; Wed, 3 Feb 2021 23:00:20 +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 4DWHFw4LCfz4RMm; Wed, 3 Feb 2021 23:00:20 +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 880F62923F; Wed, 3 Feb 2021 23:00:20 +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 113N0KKa061685; Wed, 3 Feb 2021 23:00:20 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 113N0KoV061681; Wed, 3 Feb 2021 23:00:20 GMT (envelope-from git) Date: Wed, 3 Feb 2021 23:00:20 GMT Message-Id: <202102032300.113N0KoV061681@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: John Baldwin Subject: git: cb7cc72c546e - main - serf: Fix the default return value of the BIO control method. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jhb X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: cb7cc72c546e0f87598961c3860e17391f42866c Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Feb 2021 23:00:20 -0000 The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=cb7cc72c546e0f87598961c3860e17391f42866c commit cb7cc72c546e0f87598961c3860e17391f42866c Author: John Baldwin AuthorDate: 2021-02-03 22:59:32 +0000 Commit: John Baldwin CommitDate: 2021-02-03 22:59:32 +0000 serf: Fix the default return value of the BIO control method. OpenSSL BIO classes provide an abstraction for dealing with I/O. OpenSSL provides BIO classes for commonly used I/O primitives backed by file descriptors, sockets, etc. as well as permitting consumers of OpenSSL to define custom BIO classes. One of the methods BIO classes implement is a control method invoked by BIO_ctrl() for various ancilliary tasks somewhat analgous to fcntl() and ioctl() on file descriptors. According to the BIO_ctrl(3) manual page, control methods should return 0 for unknown control requests. KTLS support in OpenSSL adds new control requests. Two of those new requests are queries to determine if KTLS is enabled for either reading or writing. These control reuquest return 1 if KTLS is enabled and 0 if it is not. serf includes two custom BIO classes for wrapping I/O requests from files and from a buffer in memory. These BIO classes both use a custom control method. However, this custom control method was returning 1 for unknown or unsupported control requests instead of 0. As a result, OpenSSL with KTLS believed that these BIOs were using KTLS and were thus adding headers and doing encryption/decryption in the BIO. Correcting the return value removes this confusion. PR: 253135 Reported by: Guido Falsi Reviewed by: emaste MFC after: 3 days Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D28472 --- contrib/serf/buckets/ssl_buckets.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/contrib/serf/buckets/ssl_buckets.c b/contrib/serf/buckets/ssl_buckets.c index b01e5359db08..3c8b7e2a685f 100644 --- a/contrib/serf/buckets/ssl_buckets.c +++ b/contrib/serf/buckets/ssl_buckets.c @@ -407,7 +407,7 @@ static int bio_bucket_destroy(BIO *bio) static long bio_bucket_ctrl(BIO *bio, int cmd, long num, void *ptr) { - long ret = 1; + long ret = 0; switch (cmd) { default: @@ -415,6 +415,7 @@ static long bio_bucket_ctrl(BIO *bio, int cmd, long num, void *ptr) break; case BIO_CTRL_FLUSH: /* At this point we can't force a flush. */ + ret = 1; break; case BIO_CTRL_PUSH: case BIO_CTRL_POP: