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openssl/openssl-1.1.1-system-cipherlist.patch

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diff -up openssl-1.1.1c/Configurations/unix-Makefile.tmpl.system-cipherlist openssl-1.1.1c/Configurations/unix-Makefile.tmpl
--- openssl-1.1.1c/Configurations/unix-Makefile.tmpl.system-cipherlist 2019-05-29 15:42:27.951329271 +0200
+++ openssl-1.1.1c/Configurations/unix-Makefile.tmpl 2019-05-29 15:42:27.974328867 +0200
@@ -180,6 +180,10 @@ MANDIR=$(INSTALLTOP)/share/man
DOCDIR=$(INSTALLTOP)/share/doc/$(BASENAME)
HTMLDIR=$(DOCDIR)/html
+{- output_off() if $config{system_ciphers_file} eq ""; "" -}
+SYSTEM_CIPHERS_FILE_DEFINE=-DSYSTEM_CIPHERS_FILE="\"{- $config{system_ciphers_file} -}\""
+{- output_on() if $config{system_ciphers_file} eq ""; "" -}
+
# MANSUFFIX is for the benefit of anyone who may want to have a suffix
# appended after the manpage file section number. "ssl" is popular,
# resulting in files such as config.5ssl rather than config.5.
@@ -203,6 +207,7 @@ CC=$(CROSS_COMPILE){- $config{CC} -}
CXX={- $config{CXX} ? "\$(CROSS_COMPILE)$config{CXX}" : '' -}
CPPFLAGS={- our $cppflags1 = join(" ",
(map { "-D".$_} @{$config{CPPDEFINES}}),
+ "\$(SYSTEM_CIPHERS_FILE_DEFINE)",
(map { "-I".$_} @{$config{CPPINCLUDES}}),
@{$config{CPPFLAGS}}) -}
CFLAGS={- join(' ', @{$config{CFLAGS}}) -}
diff -up openssl-1.1.1c/Configure.system-cipherlist openssl-1.1.1c/Configure
--- openssl-1.1.1c/Configure.system-cipherlist 2019-05-28 15:12:21.000000000 +0200
+++ openssl-1.1.1c/Configure 2019-05-29 15:45:10.465469533 +0200
@@ -24,7 +24,7 @@ use OpenSSL::Glob;
my $orig_death_handler = $SIG{__DIE__};
$SIG{__DIE__} = \&death_handler;
-my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
+my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--system-ciphers-file=SYSTEMCIPHERFILE] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
# Options:
#
@@ -41,6 +41,9 @@ my $usage="Usage: Configure [no-<cipher>
# This becomes the value of OPENSSLDIR in Makefile and in C.
# (Default: PREFIX/ssl)
#
+# --system-ciphers-file A file to read cipher string from when the PROFILE=SYSTEM
+# cipher is specified (default).
+#
# --cross-compile-prefix Add specified prefix to binutils components.
#
# --api One of 0.9.8, 1.0.0 or 1.1.0. Do not compile support for
@@ -295,6 +298,7 @@ $config{prefix}="";
$config{openssldir}="";
$config{processor}="";
$config{libdir}="";
+$config{system_ciphers_file}="";
my $auto_threads=1; # enable threads automatically? true by default
my $default_ranlib;
@@ -824,6 +828,10 @@ while (@argvcopy)
push @seed_sources, $x;
}
}
+ elsif (/^--system-ciphers-file=(.*)$/)
+ {
+ $config{system_ciphers_file}=$1;
+ }
elsif (/^--cross-compile-prefix=(.*)$/)
{
$user{CROSS_COMPILE}=$1;
@@ -1016,6 +1024,8 @@ if ($target eq "HASH") {
exit 0;
}
+chop $config{system_ciphers_file} if $config{system_ciphers_file} =~ /\/$/;
+
print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
print "for $target\n";
diff -up openssl-1.1.1c/doc/man1/ciphers.pod.system-cipherlist openssl-1.1.1c/doc/man1/ciphers.pod
--- openssl-1.1.1c/doc/man1/ciphers.pod.system-cipherlist 2019-05-28 15:12:21.000000000 +0200
+++ openssl-1.1.1c/doc/man1/ciphers.pod 2019-05-29 15:42:27.975328849 +0200
@@ -182,6 +182,15 @@ As of OpenSSL 1.0.0, the B<ALL> cipher s
The cipher suites not enabled by B<ALL>, currently B<eNULL>.
+=item B<PROFILE=SYSTEM>
+
+The list of enabled cipher suites will be loaded from the system crypto policy
+configuration file B</etc/crypto-policies/back-ends/openssl.config>.
+See also L<update-crypto-policies(8)>.
+This is the default behavior unless an application explicitly sets a cipher
+list. If used in a cipher list configuration value this string must be at the
+beginning of the cipher list, otherwise it will not be recognized.
+
=item B<HIGH>
"High" encryption cipher suites. This currently means those with key lengths
diff -up openssl-1.1.1c/include/openssl/ssl.h.system-cipherlist openssl-1.1.1c/include/openssl/ssl.h
--- openssl-1.1.1c/include/openssl/ssl.h.system-cipherlist 2019-05-28 15:12:21.000000000 +0200
+++ openssl-1.1.1c/include/openssl/ssl.h 2019-05-29 15:42:27.975328849 +0200
@@ -186,6 +186,11 @@ extern "C" {
* throwing out anonymous and unencrypted ciphersuites! (The latter are not
* actually enabled by ALL, but "ALL:RSA" would enable some of them.)
*/
+# ifdef SYSTEM_CIPHERS_FILE
+# define SSL_SYSTEM_DEFAULT_CIPHER_LIST "PROFILE=SYSTEM"
+# else
+# define SSL_SYSTEM_DEFAULT_CIPHER_LIST SSL_DEFAULT_CIPHER_LIST
+# endif
/* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
# define SSL_SENT_SHUTDOWN 1
diff -up openssl-1.1.1c/ssl/ssl_ciph.c.system-cipherlist openssl-1.1.1c/ssl/ssl_ciph.c
--- openssl-1.1.1c/ssl/ssl_ciph.c.system-cipherlist 2019-05-28 15:12:21.000000000 +0200
+++ openssl-1.1.1c/ssl/ssl_ciph.c 2019-05-29 15:42:27.976328831 +0200
@@ -9,6 +9,8 @@
* https://www.openssl.org/source/license.html
*/
+/* for secure_getenv */
+#define _GNU_SOURCE
#include <stdio.h>
#include <ctype.h>
#include <openssl/objects.h>
@@ -1399,6 +1401,53 @@ int SSL_set_ciphersuites(SSL *s, const c
return ret;
}
+#ifdef SYSTEM_CIPHERS_FILE
+static char *load_system_str(const char *suffix)
+{
+ FILE *fp;
+ char buf[1024];
+ char *new_rules;
+ const char *ciphers_path;
+ unsigned len, slen;
+
+ if ((ciphers_path = secure_getenv("OPENSSL_SYSTEM_CIPHERS_OVERRIDE")) == NULL)
+ ciphers_path = SYSTEM_CIPHERS_FILE;
+ fp = fopen(ciphers_path, "r");
+ if (fp == NULL || fgets(buf, sizeof(buf), fp) == NULL) {
+ /* cannot open or file is empty */
+ snprintf(buf, sizeof(buf), "%s", SSL_DEFAULT_CIPHER_LIST);
+ }
+
+ if (fp)
+ fclose(fp);
+
+ slen = strlen(suffix);
+ len = strlen(buf);
+
+ if (buf[len - 1] == '\n') {
+ len--;
+ buf[len] = 0;
+ }
+ if (buf[len - 1] == '\r') {
+ len--;
+ buf[len] = 0;
+ }
+
+ new_rules = OPENSSL_malloc(len + slen + 1);
+ if (new_rules == 0)
+ return NULL;
+
+ memcpy(new_rules, buf, len);
+ if (slen > 0) {
+ memcpy(&new_rules[len], suffix, slen);
+ len += slen;
+ }
+ new_rules[len] = 0;
+
+ return new_rules;
+}
+#endif
+
STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
STACK_OF(SSL_CIPHER) *tls13_ciphersuites,
STACK_OF(SSL_CIPHER) **cipher_list,
@@ -1412,15 +1461,25 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_
const char *rule_p;
CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
const SSL_CIPHER **ca_list = NULL;
+#ifdef SYSTEM_CIPHERS_FILE
+ char *new_rules = NULL;
+
+ if (rule_str != NULL && strncmp(rule_str, "PROFILE=SYSTEM", 14) == 0) {
+ char *p = rule_str + 14;
+
+ new_rules = load_system_str(p);
+ rule_str = new_rules;
+ }
+#endif
/*
* Return with error if nothing to do.
*/
if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
- return NULL;
+ goto err;
#ifndef OPENSSL_NO_EC
if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
- return NULL;
+ goto err;
#endif
/*
@@ -1443,7 +1502,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_
co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers);
if (co_list == NULL) {
SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
- return NULL; /* Failure */
+ goto err;
}
ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
@@ -1509,8 +1568,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_
* in force within each class
*/
if (!ssl_cipher_strength_sort(&head, &tail)) {
- OPENSSL_free(co_list);
- return NULL;
+ goto err;
}
/*
@@ -1555,9 +1613,8 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_
num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max);
if (ca_list == NULL) {
- OPENSSL_free(co_list);
SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
- return NULL; /* Failure */
+ goto err;
}
ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
disabled_mkey, disabled_auth, disabled_enc,
@@ -1583,8 +1640,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_
OPENSSL_free(ca_list); /* Not needed anymore */
if (!ok) { /* Rule processing failure */
- OPENSSL_free(co_list);
- return NULL;
+ goto err;
}
/*
@@ -1592,14 +1648,18 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_
* if we cannot get one.
*/
if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) {
- OPENSSL_free(co_list);
- return NULL;
+ goto err;
}
+#ifdef SYSTEM_CIPHERS_FILE
+ OPENSSL_free(new_rules); /* Not needed anymore */
+#endif
+
/* Add TLSv1.3 ciphers first - we always prefer those if possible */
for (i = 0; i < sk_SSL_CIPHER_num(tls13_ciphersuites); i++) {
if (!sk_SSL_CIPHER_push(cipherstack,
sk_SSL_CIPHER_value(tls13_ciphersuites, i))) {
+ OPENSSL_free(co_list);
sk_SSL_CIPHER_free(cipherstack);
return NULL;
}
@@ -1631,6 +1691,14 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_
*cipher_list = cipherstack;
return cipherstack;
+
+err:
+ OPENSSL_free(co_list);
+#ifdef SYSTEM_CIPHERS_FILE
+ OPENSSL_free(new_rules);
+#endif
+ return NULL;
+
}
char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
diff -up openssl-1.1.1c/ssl/ssl_lib.c.system-cipherlist openssl-1.1.1c/ssl/ssl_lib.c
--- openssl-1.1.1c/ssl/ssl_lib.c.system-cipherlist 2019-05-29 15:42:27.970328937 +0200
+++ openssl-1.1.1c/ssl/ssl_lib.c 2019-05-29 15:42:27.977328814 +0200
@@ -662,7 +662,7 @@ int SSL_CTX_set_ssl_version(SSL_CTX *ctx
ctx->tls13_ciphersuites,
&(ctx->cipher_list),
&(ctx->cipher_list_by_id),
- SSL_DEFAULT_CIPHER_LIST, ctx->cert);
+ SSL_SYSTEM_DEFAULT_CIPHER_LIST, ctx->cert);
if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
return 0;
@@ -2954,7 +2954,7 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *m
if (!ssl_create_cipher_list(ret->method,
ret->tls13_ciphersuites,
&ret->cipher_list, &ret->cipher_list_by_id,
- SSL_DEFAULT_CIPHER_LIST, ret->cert)
+ SSL_SYSTEM_DEFAULT_CIPHER_LIST, ret->cert)
|| sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
goto err2;
diff -up openssl-1.1.1c/test/cipherlist_test.c.system-cipherlist openssl-1.1.1c/test/cipherlist_test.c
--- openssl-1.1.1c/test/cipherlist_test.c.system-cipherlist 2019-05-28 15:12:21.000000000 +0200
+++ openssl-1.1.1c/test/cipherlist_test.c 2019-05-29 15:42:27.977328814 +0200
@@ -251,7 +251,9 @@ end:
int setup_tests(void)
{
+#ifndef SYSTEM_CIPHERS_FILE
ADD_TEST(test_default_cipherlist_implicit);
+#endif
ADD_TEST(test_default_cipherlist_explicit);
ADD_TEST(test_default_cipherlist_clear);
return 1;
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