import openssl-ibmca-2.1.1-1.el8_4.1
This commit is contained in:
CentOS Sources
Stepan Oksanichenko
parent
d38b19e90e
commit
656084f5a1
114
SOURCES/openssl-ibmca-multi.patch
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114
SOURCES/openssl-ibmca-multi.patch
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From 40928425d848827fa8427d677e37178ab3b57e50 Mon Sep 17 00:00:00 2001
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From: Juergen Christ <jchrist@linux.ibm.com>
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Date: Fri, 23 Apr 2021 15:09:36 +0200
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Subject: [PATCH] Fix for multiple loading of the engine.
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The ibmca engine global state gets destroyed if the engine is loaded multiple
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times. This happens, e.g., during a git clone via https where first
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git-remote-https loads the engine and initializes it, and the libcurl loads
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the engine a second time, does not initialize it, but then destroy its second
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copy. During destruction, OpenSSL calls into the ibmca_destroy function when
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then manipulates global state that is shared with the first engine (the one
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loaded by git-remote-https which is still actively used).
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Furthermore, the second load changes some global variables which causes the
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engine to not have any pkey methods registered anymore.
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To fix this, add a load count and only destroy global state once the load
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count drops to zero. Also move the setting of the engine properties from the
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load phase (where OpenSSL only creates a structural reference) to the
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initialization phase (where OpenSSL create a functional reference). This
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prevents another overwrite of global variables.
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Signed-off-by: Juergen Christ <jchrist@linux.ibm.com>
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---
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src/e_ibmca.c | 29 +++++++++++++++++++++++++----
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1 file changed, 25 insertions(+), 4 deletions(-)
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diff --git a/src/e_ibmca.c b/src/e_ibmca.c
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index b448e2c..a9b8a10 100644
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--- a/src/e_ibmca.c
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+++ b/src/e_ibmca.c
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@@ -1,5 +1,5 @@
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/*
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- * Copyright [2005-2018] International Business Machines Corp.
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+ * Copyright [2005-2021] International Business Machines Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@@ -175,6 +175,10 @@ static size_t size_cipher_list = 0;
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static size_t size_digest_list = 0;
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static size_t size_pkey_meths_list = 0;
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+static CRYPTO_ONCE bindcountlockinitonce = CRYPTO_ONCE_STATIC_INIT;
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+static CRYPTO_RWLOCK *bindcountlock = NULL;
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+static int bindcount = 0;
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+
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static struct crypto_pair ibmca_cipher_lists;
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static struct crypto_pair ibmca_digest_lists;
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static struct crypto_pair ibmca_pkey_meths_lists;
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@@ -189,6 +193,11 @@ static int ibmca_engine_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
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const int **nids, int nid);
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static int ibmca_usable_pkey_meths(const int **nids);
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+static void bindcountlockinit(void)
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+{
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+ bindcountlock = CRYPTO_THREAD_lock_new();
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+}
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+
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/* RAND stuff */
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static int ibmca_rand_bytes(unsigned char *buf, int num);
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static int ibmca_rand_status(void);
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@@ -217,6 +226,10 @@ static const ENGINE_CMD_DEFN ibmca_cmd_defns[] = {
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/* Destructor (complements the "ENGINE_ibmca()" constructor) */
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static int ibmca_destroy(ENGINE *e)
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{
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+ int newbindcount;
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+ CRYPTO_atomic_add(&bindcount, -1, &newbindcount, bindcountlock);
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+ if (newbindcount)
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+ return 1;
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/* Unload the ibmca error strings so any error state including our
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* functs or reasons won't lead to a segfault (they simply get displayed
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* without corresponding string data because none will be found).
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@@ -785,6 +798,9 @@ static void ibmca_destructor(void)
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}
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p_ica_close_adapter(ibmca_handle);
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+
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+ if (bindcountlock)
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+ CRYPTO_THREAD_lock_free(bindcountlock);
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}
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static int ibmca_init(ENGINE *e)
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@@ -792,6 +808,9 @@ static int ibmca_init(ENGINE *e)
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if (ibmca_dso == NULL)
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return 0;
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+ if (!set_supported_meths(e))
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+ return 0;
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+
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return 1;
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}
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@@ -829,6 +848,11 @@ static int ibmca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) ())
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*/
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static int bind_helper(ENGINE *e)
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{
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+ int ignored;
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+
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+ CRYPTO_THREAD_run_once(&bindcountlockinitonce, bindcountlockinit);
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+
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+ CRYPTO_atomic_add(&bindcount, 1, &ignored, bindcountlock);
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ERR_load_IBMCA_strings();
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if (!ENGINE_set_id(e, engine_ibmca_id) ||
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@@ -843,9 +867,6 @@ static int bind_helper(ENGINE *e)
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if (ibmca_dso == NULL)
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return 0;
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- if (!set_supported_meths(e))
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- return 0;
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-
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return 1;
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}
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@ -3,11 +3,13 @@
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Summary: A dynamic OpenSSL engine for IBMCA
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Name: openssl-ibmca
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Version: 2.1.1
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Release: 1%{?dist}
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Release: 1%{?dist}.1
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License: ASL 2.0
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Group: System Environment/Libraries
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URL: https://github.com/opencryptoki
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Source0: https://github.com/opencryptoki/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
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# https://github.com/opencryptoki/openssl-ibmca/commit/40928425d848827fa8427d677e37178ab3b57e50
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Patch0: %{name}-multi.patch
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Requires: libica >= 3.6.0
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BuildRequires: gcc
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BuildRequires: libica-devel >= 3.6.0
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@ -47,6 +49,10 @@ popd
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%changelog
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* Tue May 11 2021 Dan Horák <dhorak[at]redhat.com> - 2.1.1-1.1
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- Fix for multiple loading of the engine (#1957153)
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- Resolves: #1957153
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* Thu May 21 2020 Dan Horák <dhorak[at]redhat.com> - 2.1.1-1
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- updated to 2.1.1 (#1780306)
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- Resolves: #1780306
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