From 8be4ef77c64fcada41041c00e02c34b07658ba66 Mon Sep 17 00:00:00 2001 From: rpm-build Date: Wed, 6 Mar 2024 19:17:14 +0100 Subject: [PATCH 07/49] 0007-Add-support-for-PROFILE-SYSTEM-system-default-cipher.patch Patch-name: 0007-Add-support-for-PROFILE-SYSTEM-system-default-cipher.patch Patch-id: 7 Patch-status: | # # Add support for PROFILE=SYSTEM system default cipherlist From-dist-git-commit: 4334bc837fbc64d14890fdc51679a80770d498ce --- Configurations/unix-Makefile.tmpl | 5 ++ Configure | 11 +++- doc/man1/openssl-ciphers.pod.in | 9 ++++ include/openssl/ssl.h.in | 5 ++ ssl/ssl_ciph.c | 86 +++++++++++++++++++++++++++---- ssl/ssl_lib.c | 4 +- test/cipherlist_test.c | 2 + 7 files changed, 109 insertions(+), 13 deletions(-) diff --git a/Configurations/unix-Makefile.tmpl b/Configurations/unix-Makefile.tmpl index 5d61ce9550..e9fba957f1 100644 --- a/Configurations/unix-Makefile.tmpl +++ b/Configurations/unix-Makefile.tmpl @@ -324,6 +324,10 @@ 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 $config{system_ciphers_file} eq ""; "" -} + # MANSUFFIX is for the benefit of anyone who may want to have a suffix # appended after the manpage file section number. "ssl" is popular, # resulting in files such as config.5ssl rather than config.5. @@ -347,6 +351,7 @@ CC=$(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 --git a/Configure b/Configure index cca1ac8d16..2ae1cd0bc2 100755 --- a/Configure +++ b/Configure @@ -27,7 +27,7 @@ use OpenSSL::config; my $orig_death_handler = $SIG{__DIE__}; $SIG{__DIE__} = \&death_handler; -my $usage="Usage: Configure [no- ...] [enable- ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]thread-pool] [[no-]default-thread-pool] [[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- ...] [enable- ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]thread-pool] [[no-]default-thread-pool] [[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"; my $banner = <<"EOF"; @@ -61,6 +61,10 @@ EOF # given with --prefix. # 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). +# # --banner=".." Output specified text instead of default completion banner # # -w Don't wait after showing a Configure warning @@ -394,6 +398,7 @@ $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; @@ -1047,6 +1052,10 @@ while (@argvcopy) die "FIPS key too long (64 bytes max)\n" if length $1 > 64; } + elsif (/^--system-ciphers-file=(.*)$/) + { + $config{system_ciphers_file}=$1; + } elsif (/^--banner=(.*)$/) { $banner = $1 . "\n"; diff --git a/doc/man1/openssl-ciphers.pod.in b/doc/man1/openssl-ciphers.pod.in index d4df30686f..cec4835268 100644 --- a/doc/man1/openssl-ciphers.pod.in +++ b/doc/man1/openssl-ciphers.pod.in @@ -190,6 +190,15 @@ As of OpenSSL 1.0.0, the B cipher suites are sensibly ordered by default. The cipher suites not enabled by B, currently B. +=item B + +The list of enabled cipher suites will be loaded from the system crypto policy +configuration file B. +See also L. +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" encryption cipher suites. This currently means those with key lengths diff --git a/include/openssl/ssl.h.in b/include/openssl/ssl.h.in index 9f91039f8a..fc34d4ca61 100644 --- a/include/openssl/ssl.h.in +++ b/include/openssl/ssl.h.in @@ -209,6 +209,11 @@ 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 OSSL_default_cipher_list() +# endif /* Used in SSL_set_shutdown()/SSL_get_shutdown(); */ # define SSL_SENT_SHUTDOWN 1 diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c index 8360991ce4..33c23efb0d 100644 --- a/ssl/ssl_ciph.c +++ b/ssl/ssl_ciph.c @@ -1455,6 +1455,53 @@ int SSL_set_ciphersuites(SSL *s, const char *str) 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(SSL_CTX *ctx, STACK_OF(SSL_CIPHER) *tls13_ciphersuites, STACK_OF(SSL_CIPHER) **cipher_list, @@ -1469,15 +1516,25 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; const SSL_CIPHER **ca_list = NULL; const SSL_METHOD *ssl_method = ctx->method; +#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; if (!check_suiteb_cipher_list(ssl_method, c, &rule_str)) - return NULL; + goto err; /* * To reduce the work to do we only want to process the compiled @@ -1499,7 +1556,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, if (num_of_ciphers > 0) { co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers); if (co_list == NULL) - return NULL; /* Failure */ + goto err; } ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, @@ -1565,8 +1622,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, * in force within each class */ if (!ssl_cipher_strength_sort(&head, &tail)) { - OPENSSL_free(co_list); - return NULL; + goto err; } /* @@ -1611,7 +1667,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max); if (ca_list == NULL) { OPENSSL_free(co_list); - return NULL; /* Failure */ + goto err; } ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, disabled_mkey, disabled_auth, disabled_enc, @@ -1637,8 +1693,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, OPENSSL_free(ca_list); /* Not needed anymore */ if (!ok) { /* Rule processing failure */ - OPENSSL_free(co_list); - return NULL; + goto err; } /* @@ -1646,10 +1701,13 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, * 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++) { const SSL_CIPHER *sslc = sk_SSL_CIPHER_value(tls13_ciphersuites, i); @@ -1701,6 +1759,14 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, *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 --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c index cf59d2dfa5..1329841aaf 100644 --- a/ssl/ssl_lib.c +++ b/ssl/ssl_lib.c @@ -700,7 +700,7 @@ int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) ctx->tls13_ciphersuites, &(ctx->cipher_list), &(ctx->cipher_list_by_id), - OSSL_default_cipher_list(), ctx->cert); + SSL_SYSTEM_DEFAULT_CIPHER_LIST, ctx->cert); if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); return 0; @@ -3966,7 +3966,7 @@ SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq, if (!ssl_create_cipher_list(ret, ret->tls13_ciphersuites, &ret->cipher_list, &ret->cipher_list_by_id, - OSSL_default_cipher_list(), ret->cert) + SSL_SYSTEM_DEFAULT_CIPHER_LIST, ret->cert) || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS); goto err; diff --git a/test/cipherlist_test.c b/test/cipherlist_test.c index c46e431b00..19d05e860b 100644 --- a/test/cipherlist_test.c +++ b/test/cipherlist_test.c @@ -261,7 +261,9 @@ 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); ADD_TEST(test_stdname_cipherlist); -- 2.44.0