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openssl-3.29247
openssl-Add-support-for-PROFILE-SYSTEM-system-d...
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File openssl-Add-support-for-PROFILE-SYSTEM-system-default-cipher.patch of Package openssl-3.29247
From 736d709ec194b3a763e004696df22792c62a11fc Mon Sep 17 00:00:00 2001 From: Tomas Mraz <tmraz@fedoraproject.org> Date: Thu, 24 Sep 2020 10:16:46 +0200 Subject: Add support for PROFILE=SYSTEM system default cipherlist (was openssl-1.1.1-system-cipherlist.patch) --- Configurations/unix-Makefile.tmpl | 5 ++ Configure | 11 ++++ doc/man1/openssl-ciphers.pod.in | 9 +++ include/openssl/ssl.h.in | 5 ++ ssl/ssl_ciph.c | 87 +++++++++++++++++++++++++++++++++----- ssl/ssl_lib.c | 4 - test/cipherlist_test.c | 2 util/libcrypto.num | 1 8 files changed, 110 insertions(+), 14 deletions(-) --- a/Configurations/unix-Makefile.tmpl +++ b/Configurations/unix-Makefile.tmpl @@ -315,6 +315,10 @@ 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 $config{system_ciphers_file} eq ""; "" -} + # MANSUFFIX is for the benefit of anyone who may want to have a suffix # appended after the manpage file section number. "ssl" is popular, # resulting in files such as config.5ssl rather than config.5. @@ -338,6 +342,7 @@ CC=$(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}}) -} --- 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-<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"; 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 @@ -387,6 +391,7 @@ $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; @@ -989,6 +994,10 @@ 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"; --- a/doc/man1/openssl-ciphers.pod.in +++ b/doc/man1/openssl-ciphers.pod.in @@ -186,6 +186,15 @@ 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 --- a/include/openssl/ssl.h.in +++ b/include/openssl/ssl.h.in @@ -210,6 +210,11 @@ 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 --- a/ssl/ssl_ciph.c +++ b/ssl/ssl_ciph.c @@ -1438,6 +1438,53 @@ 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 = ossl_safe_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, @@ -1452,15 +1499,25 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_ 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 @@ -1482,7 +1539,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_ co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers); if (co_list == NULL) { ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE); - return NULL; /* Failure */ + goto err; } ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, @@ -1548,8 +1605,7 @@ 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; } /* @@ -1593,9 +1649,8 @@ 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); ERR_raise(ERR_LIB_SSL, 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, @@ -1628,8 +1683,7 @@ 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; } /* @@ -1637,10 +1691,13 @@ 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++) { const SSL_CIPHER *sslc = sk_SSL_CIPHER_value(tls13_ciphersuites, i); @@ -1692,6 +1749,14 @@ 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) --- a/ssl/ssl_lib.c +++ b/ssl/ssl_lib.c @@ -660,7 +660,7 @@ int SSL_CTX_set_ssl_version(SSL_CTX *ctx 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; @@ -3285,7 +3285,7 @@ SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *li 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 err2; --- a/test/cipherlist_test.c +++ b/test/cipherlist_test.c @@ -246,7 +246,9 @@ 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; --- a/util/libcrypto.num +++ b/util/libcrypto.num @@ -5428,3 +5428,4 @@ EVP_PKEY_CTX_get0_provider OPENSSL_strcasecmp 5556 3_0_3 EXIST::FUNCTION: OPENSSL_strncasecmp 5557 3_0_3 EXIST::FUNCTION: OSSL_CMP_CTX_reset_geninfo_ITAVs 5558 3_0_8 EXIST::FUNCTION:CMP +ossl_safe_getenv ? 3_0_0 EXIST::FUNCTION:
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