diff options
Diffstat (limited to 'mysql/vio/viosslfactories.c')
| -rw-r--r-- | mysql/vio/viosslfactories.c | 729 |
1 files changed, 729 insertions, 0 deletions
diff --git a/mysql/vio/viosslfactories.c b/mysql/vio/viosslfactories.c new file mode 100644 index 0000000..da5449a --- /dev/null +++ b/mysql/vio/viosslfactories.c @@ -0,0 +1,729 @@ +/* Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ + +#include "vio_priv.h" + +#ifdef HAVE_OPENSSL + +#define TLS_VERSION_OPTION_SIZE 256 +#define SSL_CIPHER_LIST_SIZE 4096 + +#ifdef HAVE_YASSL +static const char tls_ciphers_list[]="DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:" + "AES128-RMD:DES-CBC3-RMD:DHE-RSA-AES256-RMD:" + "DHE-RSA-AES128-RMD:DHE-RSA-DES-CBC3-RMD:" + "AES256-SHA:RC4-SHA:RC4-MD5:DES-CBC3-SHA:" + "DES-CBC-SHA:EDH-RSA-DES-CBC3-SHA:" + "EDH-RSA-DES-CBC-SHA:AES128-SHA:AES256-RMD"; +static const char tls_cipher_blocked[]= "!aNULL:!eNULL:!EXPORT:!LOW:!MD5:!DES:!RC2:!RC4:!PSK:"; +#else +static const char tls_ciphers_list[]="ECDHE-ECDSA-AES128-GCM-SHA256:" + "ECDHE-ECDSA-AES256-GCM-SHA384:" + "ECDHE-RSA-AES128-GCM-SHA256:" + "ECDHE-RSA-AES256-GCM-SHA384:" + "ECDHE-ECDSA-AES128-SHA256:" + "ECDHE-RSA-AES128-SHA256:" + "ECDHE-ECDSA-AES256-SHA384:" + "ECDHE-RSA-AES256-SHA384:" + "DHE-RSA-AES128-GCM-SHA256:" + "DHE-DSS-AES128-GCM-SHA256:" + "DHE-RSA-AES128-SHA256:" + "DHE-DSS-AES128-SHA256:" + "DHE-DSS-AES256-GCM-SHA384:" + "DHE-RSA-AES256-SHA256:" + "DHE-DSS-AES256-SHA256:" + "ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:" + "ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:" + "DHE-DSS-AES128-SHA:DHE-RSA-AES128-SHA:" + "TLS_DHE_DSS_WITH_AES_256_CBC_SHA:DHE-RSA-AES256-SHA:" + "AES128-GCM-SHA256:DH-DSS-AES128-GCM-SHA256:" + "ECDH-ECDSA-AES128-GCM-SHA256:AES256-GCM-SHA384:" + "DH-DSS-AES256-GCM-SHA384:ECDH-ECDSA-AES256-GCM-SHA384:" + "AES128-SHA256:DH-DSS-AES128-SHA256:ECDH-ECDSA-AES128-SHA256:AES256-SHA256:" + "DH-DSS-AES256-SHA256:ECDH-ECDSA-AES256-SHA384:AES128-SHA:" + "DH-DSS-AES128-SHA:ECDH-ECDSA-AES128-SHA:AES256-SHA:" + "DH-DSS-AES256-SHA:ECDH-ECDSA-AES256-SHA:DHE-RSA-AES256-GCM-SHA384:" + "DH-RSA-AES128-GCM-SHA256:ECDH-RSA-AES128-GCM-SHA256:DH-RSA-AES256-GCM-SHA384:" + "ECDH-RSA-AES256-GCM-SHA384:DH-RSA-AES128-SHA256:" + "ECDH-RSA-AES128-SHA256:DH-RSA-AES256-SHA256:" + "ECDH-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:" + "ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA:" + "ECDHE-ECDSA-AES256-SHA:DHE-DSS-AES128-SHA:DHE-RSA-AES128-SHA:" + "TLS_DHE_DSS_WITH_AES_256_CBC_SHA:DHE-RSA-AES256-SHA:" + "AES128-SHA:DH-DSS-AES128-SHA:ECDH-ECDSA-AES128-SHA:AES256-SHA:" + "DH-DSS-AES256-SHA:ECDH-ECDSA-AES256-SHA:DH-RSA-AES128-SHA:" + "ECDH-RSA-AES128-SHA:DH-RSA-AES256-SHA:ECDH-RSA-AES256-SHA:DES-CBC3-SHA"; +static const char tls_cipher_blocked[]= "!aNULL:!eNULL:!EXPORT:!LOW:!MD5:!DES:!RC2:!RC4:!PSK:" + "!DHE-DSS-DES-CBC3-SHA:!DHE-RSA-DES-CBC3-SHA:" + "!ECDH-RSA-DES-CBC3-SHA:!ECDH-ECDSA-DES-CBC3-SHA:" + "!ECDHE-RSA-DES-CBC3-SHA:!ECDHE-ECDSA-DES-CBC3-SHA:"; +#endif + +static my_bool ssl_initialized = FALSE; + +/* + Diffie-Hellman key. + Generated using: >openssl dhparam -5 -C 2048 + + -----BEGIN DH PARAMETERS----- + MIIBCAKCAQEAil36wGZ2TmH6ysA3V1xtP4MKofXx5n88xq/aiybmGnReZMviCPEJ + 46+7VCktl/RZ5iaDH1XNG1dVQmznt9pu2G3usU+k1/VB4bQL4ZgW4u0Wzxh9PyXD + glm99I9Xyj4Z5PVE4MyAsxCRGA1kWQpD9/zKAegUBPLNqSo886Uqg9hmn8ksyU9E + BV5eAEciCuawh6V0O+Sj/C3cSfLhgA0GcXp3OqlmcDu6jS5gWjn3LdP1U0duVxMB + h/neTSCSvtce4CAMYMjKNVh9P1nu+2d9ZH2Od2xhRIqMTfAS1KTqF3VmSWzPFCjG + mjxx/bg6bOOjpgZapvB6ABWlWmRmAAWFtwIBBQ== + -----END DH PARAMETERS----- + */ +static unsigned char dh2048_p[]= +{ + 0x8A, 0x5D, 0xFA, 0xC0, 0x66, 0x76, 0x4E, 0x61, 0xFA, 0xCA, 0xC0, 0x37, + 0x57, 0x5C, 0x6D, 0x3F, 0x83, 0x0A, 0xA1, 0xF5, 0xF1, 0xE6, 0x7F, 0x3C, + 0xC6, 0xAF, 0xDA, 0x8B, 0x26, 0xE6, 0x1A, 0x74, 0x5E, 0x64, 0xCB, 0xE2, + 0x08, 0xF1, 0x09, 0xE3, 0xAF, 0xBB, 0x54, 0x29, 0x2D, 0x97, 0xF4, 0x59, + 0xE6, 0x26, 0x83, 0x1F, 0x55, 0xCD, 0x1B, 0x57, 0x55, 0x42, 0x6C, 0xE7, + 0xB7, 0xDA, 0x6E, 0xD8, 0x6D, 0xEE, 0xB1, 0x4F, 0xA4, 0xD7, 0xF5, 0x41, + 0xE1, 0xB4, 0x0B, 0xE1, 0x98, 0x16, 0xE2, 0xED, 0x16, 0xCF, 0x18, 0x7D, + 0x3F, 0x25, 0xC3, 0x82, 0x59, 0xBD, 0xF4, 0x8F, 0x57, 0xCA, 0x3E, 0x19, + 0xE4, 0xF5, 0x44, 0xE0, 0xCC, 0x80, 0xB3, 0x10, 0x91, 0x18, 0x0D, 0x64, + 0x59, 0x0A, 0x43, 0xF7, 0xFC, 0xCA, 0x01, 0xE8, 0x14, 0x04, 0xF2, 0xCD, + 0xA9, 0x2A, 0x3C, 0xF3, 0xA5, 0x2A, 0x83, 0xD8, 0x66, 0x9F, 0xC9, 0x2C, + 0xC9, 0x4F, 0x44, 0x05, 0x5E, 0x5E, 0x00, 0x47, 0x22, 0x0A, 0xE6, 0xB0, + 0x87, 0xA5, 0x74, 0x3B, 0xE4, 0xA3, 0xFC, 0x2D, 0xDC, 0x49, 0xF2, 0xE1, + 0x80, 0x0D, 0x06, 0x71, 0x7A, 0x77, 0x3A, 0xA9, 0x66, 0x70, 0x3B, 0xBA, + 0x8D, 0x2E, 0x60, 0x5A, 0x39, 0xF7, 0x2D, 0xD3, 0xF5, 0x53, 0x47, 0x6E, + 0x57, 0x13, 0x01, 0x87, 0xF9, 0xDE, 0x4D, 0x20, 0x92, 0xBE, 0xD7, 0x1E, + 0xE0, 0x20, 0x0C, 0x60, 0xC8, 0xCA, 0x35, 0x58, 0x7D, 0x3F, 0x59, 0xEE, + 0xFB, 0x67, 0x7D, 0x64, 0x7D, 0x8E, 0x77, 0x6C, 0x61, 0x44, 0x8A, 0x8C, + 0x4D, 0xF0, 0x12, 0xD4, 0xA4, 0xEA, 0x17, 0x75, 0x66, 0x49, 0x6C, 0xCF, + 0x14, 0x28, 0xC6, 0x9A, 0x3C, 0x71, 0xFD, 0xB8, 0x3A, 0x6C, 0xE3, 0xA3, + 0xA6, 0x06, 0x5A, 0xA6, 0xF0, 0x7A, 0x00, 0x15, 0xA5, 0x5A, 0x64, 0x66, + 0x00, 0x05, 0x85, 0xB7, +}; + +static unsigned char dh2048_g[]={ + 0x05, +}; + +static DH *get_dh2048(void) +{ + DH *dh; + if ((dh=DH_new())) + { + dh->p=BN_bin2bn(dh2048_p,sizeof(dh2048_p),NULL); + dh->g=BN_bin2bn(dh2048_g,sizeof(dh2048_g),NULL); + if (! dh->p || ! dh->g) + { + DH_free(dh); + dh=0; + } + } + return(dh); +} + + +static void +report_errors() +{ + unsigned long l; + const char* file; + const char* data; + int line,flags; + + DBUG_ENTER("report_errors"); + + while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0) + { +#ifndef DBUG_OFF /* Avoid warning */ + char buf[200]; + DBUG_PRINT("error", ("OpenSSL: %s:%s:%d:%s\n", ERR_error_string(l,buf), + file,line,(flags & ERR_TXT_STRING) ? data : "")) ; +#endif + } + DBUG_VOID_RETURN; +} + +static const char* +ssl_error_string[] = +{ + "No error", + "Unable to get certificate", + "Unable to get private key", + "Private key does not match the certificate public key", + "SSL_CTX_set_default_verify_paths failed", + "Failed to set ciphers to use", + "SSL_CTX_new failed", + "SSL context is not usable without certificate and private key", + "SSL_CTX_set_tmp_dh failed", + "TLS version is invalid" +}; + +const char* +sslGetErrString(enum enum_ssl_init_error e) +{ + DBUG_ASSERT(SSL_INITERR_NOERROR < e && e < SSL_INITERR_LASTERR); + return ssl_error_string[e]; +} + +static int +vio_set_cert_stuff(SSL_CTX *ctx, const char *cert_file, const char *key_file, + enum enum_ssl_init_error* error) +{ + DBUG_ENTER("vio_set_cert_stuff"); + DBUG_PRINT("enter", ("ctx: 0x%lx cert_file: %s key_file: %s", + (long) ctx, cert_file, key_file)); + + if (!cert_file && key_file) + cert_file= key_file; + + if (!key_file && cert_file) + key_file= cert_file; + + if (cert_file && + SSL_CTX_use_certificate_file(ctx, cert_file, SSL_FILETYPE_PEM) <= 0) + { + *error= SSL_INITERR_CERT; + DBUG_PRINT("error",("%s from file '%s'", sslGetErrString(*error), cert_file)); + DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE);); + my_message_local(ERROR_LEVEL, "SSL error: %s from '%s'", + sslGetErrString(*error), cert_file); + DBUG_RETURN(1); + } + + if (key_file && + SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) + { + *error= SSL_INITERR_KEY; + DBUG_PRINT("error", ("%s from file '%s'", sslGetErrString(*error), key_file)); + DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE);); + my_message_local(ERROR_LEVEL, "SSL error: %s from '%s'", + sslGetErrString(*error), key_file); + DBUG_RETURN(1); + } + + /* + If we are using DSA, we can copy the parameters from the private key + Now we know that a key and cert have been set against the SSL context + */ + if (cert_file && !SSL_CTX_check_private_key(ctx)) + { + *error= SSL_INITERR_NOMATCH; + DBUG_PRINT("error", ("%s",sslGetErrString(*error))); + DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE);); + my_message_local(ERROR_LEVEL, "SSL error: %s", sslGetErrString(*error)); + DBUG_RETURN(1); + } + + DBUG_RETURN(0); +} + +#ifndef HAVE_YASSL +/* OpenSSL specific */ + +#ifdef HAVE_PSI_INTERFACE +static PSI_rwlock_key key_rwlock_openssl; + +static PSI_rwlock_info openssl_rwlocks[]= +{ + { &key_rwlock_openssl, "CRYPTO_dynlock_value::lock", 0} +}; +#endif + + +typedef struct CRYPTO_dynlock_value +{ + mysql_rwlock_t lock; +} openssl_lock_t; + + +/* Array of locks used by openssl internally for thread synchronization. + The number of locks is equal to CRYPTO_num_locks. +*/ +static openssl_lock_t *openssl_stdlocks; + +/*OpenSSL callback functions for multithreading. We implement all the functions + as we are using our own locking mechanism. +*/ +static void openssl_lock(int mode, openssl_lock_t *lock, + const char *file MY_ATTRIBUTE((unused)), + int line MY_ATTRIBUTE((unused))) +{ + int err; + char const *what; + + switch (mode) { + case CRYPTO_LOCK|CRYPTO_READ: + what = "read lock"; + err= mysql_rwlock_rdlock(&lock->lock); + break; + case CRYPTO_LOCK|CRYPTO_WRITE: + what = "write lock"; + err= mysql_rwlock_wrlock(&lock->lock); + break; + case CRYPTO_UNLOCK|CRYPTO_READ: + case CRYPTO_UNLOCK|CRYPTO_WRITE: + what = "unlock"; + err= mysql_rwlock_unlock(&lock->lock); + break; + default: + /* Unknown locking mode. */ + DBUG_PRINT("error", + ("Fatal OpenSSL: %s:%d: interface problem (mode=0x%x)\n", + file, line, mode)); + + fprintf(stderr, "Fatal: OpenSSL interface problem (mode=0x%x)", mode); + fflush(stderr); + abort(); + } + if (err) + { + DBUG_PRINT("error", + ("Fatal OpenSSL: %s:%d: can't %s OpenSSL lock\n", + file, line, what)); + + fprintf(stderr, "Fatal: can't %s OpenSSL lock", what); + fflush(stderr); + abort(); + } +} + +static void openssl_lock_function(int mode, int n, + const char *file MY_ATTRIBUTE((unused)), + int line MY_ATTRIBUTE((unused))) +{ + if (n < 0 || n > CRYPTO_num_locks()) + { + /* Lock number out of bounds. */ + DBUG_PRINT("error", + ("Fatal OpenSSL: %s:%d: interface problem (n = %d)", file, line, n)); + + fprintf(stderr, "Fatal: OpenSSL interface problem (n = %d)", n); + fflush(stderr); + abort(); + } + openssl_lock(mode, &openssl_stdlocks[n], file, line); +} + +static openssl_lock_t *openssl_dynlock_create(const char *file + MY_ATTRIBUTE((unused)), + int line MY_ATTRIBUTE((unused))) +{ + openssl_lock_t *lock; + + DBUG_PRINT("info", ("openssl_dynlock_create: %s:%d", file, line)); + + lock= (openssl_lock_t*) + my_malloc(PSI_NOT_INSTRUMENTED,sizeof(openssl_lock_t),MYF(0)); + +#ifdef HAVE_PSI_INTERFACE + mysql_rwlock_init(key_rwlock_openssl, &lock->lock); +#else + mysql_rwlock_init(0, &lock->lock); +#endif + return lock; +} + + +static void openssl_dynlock_destroy(openssl_lock_t *lock, + const char *file MY_ATTRIBUTE((unused)), + int line MY_ATTRIBUTE((unused))) +{ + DBUG_PRINT("info", ("openssl_dynlock_destroy: %s:%d", file, line)); + + mysql_rwlock_destroy(&lock->lock); + my_free(lock); +} + +static unsigned long openssl_id_function() +{ + return (unsigned long) my_thread_self(); +} + +//End of mutlithreading callback functions + +static void init_ssl_locks() +{ + int i= 0; +#ifdef HAVE_PSI_INTERFACE + const char* category= "sql"; + int count= array_elements(openssl_rwlocks); + mysql_rwlock_register(category, openssl_rwlocks, count); +#endif + + openssl_stdlocks= (openssl_lock_t*) OPENSSL_malloc(CRYPTO_num_locks() * + sizeof(openssl_lock_t)); + for (i= 0; i < CRYPTO_num_locks(); ++i) +#ifdef HAVE_PSI_INTERFACE + mysql_rwlock_init(key_rwlock_openssl, &openssl_stdlocks[i].lock); +#else + mysql_rwlock_init(0, &openssl_stdlocks[i].lock); +#endif +} + +static void set_lock_callback_functions(my_bool init) +{ + CRYPTO_set_locking_callback(init ? openssl_lock_function : NULL); + CRYPTO_set_id_callback(init ? openssl_id_function : NULL); + CRYPTO_set_dynlock_create_callback(init ? openssl_dynlock_create : NULL); + CRYPTO_set_dynlock_destroy_callback(init ? openssl_dynlock_destroy : NULL); + CRYPTO_set_dynlock_lock_callback(init ? openssl_lock : NULL); +} + +static void init_lock_callback_functions() +{ + set_lock_callback_functions(TRUE); +} + +static void deinit_lock_callback_functions() +{ + set_lock_callback_functions(FALSE); +} + +void vio_ssl_end() +{ + int i= 0; + + if (ssl_initialized) { + ERR_remove_state(0); + ERR_free_strings(); + EVP_cleanup(); + + CRYPTO_cleanup_all_ex_data(); + + deinit_lock_callback_functions(); + + for (; i < CRYPTO_num_locks(); ++i) + mysql_rwlock_destroy(&openssl_stdlocks[i].lock); + OPENSSL_free(openssl_stdlocks); + + ssl_initialized= FALSE; + } +} + +#endif //OpenSSL specific + +void ssl_start() +{ + if (!ssl_initialized) + { + ssl_initialized= TRUE; + + SSL_library_init(); + OpenSSL_add_all_algorithms(); + SSL_load_error_strings(); + +#ifndef HAVE_YASSL + init_ssl_locks(); + init_lock_callback_functions(); +#endif + } +} + +long process_tls_version(const char *tls_version) +{ + const char *separator= ","; + char *token, *lasts= NULL; +#ifndef HAVE_YASSL + unsigned int tls_versions_count= 3; + const char *tls_version_name_list[3]= {"TLSv1", "TLSv1.1", "TLSv1.2"}; + const char ctx_flag_default[]= "TLSv1,TLSv1.1,TLSv1.2"; + const long tls_ctx_list[3]= {SSL_OP_NO_TLSv1, SSL_OP_NO_TLSv1_1, SSL_OP_NO_TLSv1_2}; + long tls_ctx_flag= SSL_OP_NO_TLSv1|SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1_2; +#else + unsigned int tls_versions_count= 2; + const char *tls_version_name_list[2]= {"TLSv1", "TLSv1.1"}; + const long tls_ctx_list[2]= {SSL_OP_NO_TLSv1, SSL_OP_NO_TLSv1_1}; + const char ctx_flag_default[]= "TLSv1,TLSv1.1"; + long tls_ctx_flag= SSL_OP_NO_TLSv1|SSL_OP_NO_TLSv1_1; +#endif + unsigned int index= 0; + char tls_version_option[TLS_VERSION_OPTION_SIZE]= ""; + int tls_found= 0; + + if (!tls_version || !my_strcasecmp(&my_charset_latin1, tls_version, ctx_flag_default)) + return 0; + + if (strlen(tls_version)-1 > sizeof(tls_version_option)) + return -1; + + strncpy(tls_version_option, tls_version, sizeof(tls_version_option)); + token= my_strtok_r(tls_version_option, separator, &lasts); + while (token) + { + for (index=0; index < tls_versions_count; index++) + { + if (!my_strcasecmp(&my_charset_latin1, tls_version_name_list[index], token)) + { + tls_found= 1; + tls_ctx_flag= tls_ctx_flag & (~tls_ctx_list[index]); + break; + } + } + token= my_strtok_r(NULL, separator, &lasts); + } + + if (!tls_found) + return -1; + else + return tls_ctx_flag; +} + +/************************ VioSSLFd **********************************/ +static struct st_VioSSLFd * +new_VioSSLFd(const char *key_file, const char *cert_file, + const char *ca_file, const char *ca_path, + const char *cipher, my_bool is_client, + enum enum_ssl_init_error *error, + const char *crl_file, const char *crl_path, const long ssl_ctx_flags) +{ + DH *dh; + struct st_VioSSLFd *ssl_fd; + long ssl_ctx_options= SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3; + int ret_set_cipherlist= 0; + char cipher_list[SSL_CIPHER_LIST_SIZE]= {0}; + DBUG_ENTER("new_VioSSLFd"); + DBUG_PRINT("enter", + ("key_file: '%s' cert_file: '%s' ca_file: '%s' ca_path: '%s' " + "cipher: '%s' crl_file: '%s' crl_path: '%s' ssl_ctx_flags: '%ld' ", + key_file ? key_file : "NULL", + cert_file ? cert_file : "NULL", + ca_file ? ca_file : "NULL", + ca_path ? ca_path : "NULL", + cipher ? cipher : "NULL", + crl_file ? crl_file : "NULL", + crl_path ? crl_path : "NULL", + ssl_ctx_flags)); + + if (ssl_ctx_flags < 0) + { + *error= SSL_TLS_VERSION_INVALID; + DBUG_PRINT("error", ("TLS version invalid : %s", sslGetErrString(*error))); + report_errors(); + DBUG_RETURN(0); + } + + ssl_ctx_options= (ssl_ctx_options | ssl_ctx_flags) & + (SSL_OP_NO_SSLv2 | + SSL_OP_NO_SSLv3 | + SSL_OP_NO_TLSv1 | + SSL_OP_NO_TLSv1_1 +#ifndef HAVE_YASSL + | SSL_OP_NO_TLSv1_2 + + +#endif + ); + if (!(ssl_fd= ((struct st_VioSSLFd*) + my_malloc(key_memory_vio_ssl_fd, + sizeof(struct st_VioSSLFd),MYF(0))))) + DBUG_RETURN(0); + + if (!(ssl_fd->ssl_context= SSL_CTX_new(is_client ? + SSLv23_client_method() : + SSLv23_server_method()))) + { + *error= SSL_INITERR_MEMFAIL; + DBUG_PRINT("error", ("%s", sslGetErrString(*error))); + report_errors(); + my_free(ssl_fd); + DBUG_RETURN(0); + } + + SSL_CTX_set_options(ssl_fd->ssl_context, ssl_ctx_options); + + /* + Set the ciphers that can be used + NOTE: SSL_CTX_set_cipher_list will return 0 if + none of the provided ciphers could be selected + */ + strcat(cipher_list, tls_cipher_blocked); + if (cipher) + strcat(cipher_list, cipher); + else + strcat(cipher_list, tls_ciphers_list); + + if (ret_set_cipherlist == SSL_CTX_set_cipher_list(ssl_fd->ssl_context, cipher_list)) + { + *error= SSL_INITERR_CIPHERS; + DBUG_PRINT("error", ("%s", sslGetErrString(*error))); + report_errors(); + SSL_CTX_free(ssl_fd->ssl_context); + my_free(ssl_fd); + DBUG_RETURN(0); + } + + /* Load certs from the trusted ca */ + if (SSL_CTX_load_verify_locations(ssl_fd->ssl_context, ca_file, ca_path) <= 0) + { + DBUG_PRINT("warning", ("SSL_CTX_load_verify_locations failed")); + if (ca_file || ca_path) + { + /* fail only if ca file or ca path were supplied and looking into + them fails. */ + *error= SSL_INITERR_BAD_PATHS; + DBUG_PRINT("error", ("SSL_CTX_load_verify_locations failed : %s", + sslGetErrString(*error))); + report_errors(); + SSL_CTX_free(ssl_fd->ssl_context); + my_free(ssl_fd); + DBUG_RETURN(0); + } + + /* otherwise go use the defaults */ + if (SSL_CTX_set_default_verify_paths(ssl_fd->ssl_context) == 0) + { + *error= SSL_INITERR_BAD_PATHS; + DBUG_PRINT("error", ("%s", sslGetErrString(*error))); + report_errors(); + SSL_CTX_free(ssl_fd->ssl_context); + my_free(ssl_fd); + DBUG_RETURN(0); + } + } + + if (crl_file || crl_path) + { +#ifdef HAVE_YASSL + DBUG_PRINT("warning", ("yaSSL doesn't support CRL")); + DBUG_ASSERT(0); +#else + X509_STORE *store= SSL_CTX_get_cert_store(ssl_fd->ssl_context); + /* Load crls from the trusted ca */ + if (X509_STORE_load_locations(store, crl_file, crl_path) == 0 || + X509_STORE_set_flags(store, + X509_V_FLAG_CRL_CHECK | + X509_V_FLAG_CRL_CHECK_ALL) == 0) + { + DBUG_PRINT("warning", ("X509_STORE_load_locations for CRL failed")); + *error= SSL_INITERR_BAD_PATHS; + DBUG_PRINT("error", ("%s", sslGetErrString(*error))); + report_errors(); + SSL_CTX_free(ssl_fd->ssl_context); + my_free(ssl_fd); + DBUG_RETURN(0); + } +#endif + } + + if (vio_set_cert_stuff(ssl_fd->ssl_context, cert_file, key_file, error)) + { + DBUG_PRINT("error", ("vio_set_cert_stuff failed")); + report_errors(); + SSL_CTX_free(ssl_fd->ssl_context); + my_free(ssl_fd); + DBUG_RETURN(0); + } + + /* Server specific check : Must have certificate and key file */ + if (!is_client && !key_file && !cert_file) + { + *error= SSL_INITERR_NO_USABLE_CTX; + DBUG_PRINT("error", ("%s", sslGetErrString(*error))); + report_errors(); + SSL_CTX_free(ssl_fd->ssl_context); + my_free(ssl_fd); + DBUG_RETURN(0); + } + + /* DH stuff */ + dh= get_dh2048(); + if (SSL_CTX_set_tmp_dh(ssl_fd->ssl_context, dh) == 0) + { + *error= SSL_INITERR_DHFAIL; + DBUG_PRINT("error", ("%s", sslGetErrString(*error))); + report_errors(); + DH_free(dh); + SSL_CTX_free(ssl_fd->ssl_context); + my_free(ssl_fd); + DBUG_RETURN(0); + } + DH_free(dh); + + DBUG_PRINT("exit", ("OK 1")); + + DBUG_RETURN(ssl_fd); +} + + +/************************ VioSSLConnectorFd **********************************/ +struct st_VioSSLFd * +new_VioSSLConnectorFd(const char *key_file, const char *cert_file, + const char *ca_file, const char *ca_path, + const char *cipher, enum enum_ssl_init_error* error, + const char *crl_file, const char *crl_path, const long ssl_ctx_flags) +{ + struct st_VioSSLFd *ssl_fd; + int verify= SSL_VERIFY_PEER; + + /* + Turn off verification of servers certificate if both + ca_file and ca_path is set to NULL + */ + if (ca_file == 0 && ca_path == 0) + verify= SSL_VERIFY_NONE; + + if (!(ssl_fd= new_VioSSLFd(key_file, cert_file, ca_file, + ca_path, cipher, TRUE, error, + crl_file, crl_path, ssl_ctx_flags))) + { + return 0; + } + + /* Init the VioSSLFd as a "connector" ie. the client side */ + + SSL_CTX_set_verify(ssl_fd->ssl_context, verify, NULL); + + return ssl_fd; +} + + +/************************ VioSSLAcceptorFd **********************************/ +struct st_VioSSLFd * +new_VioSSLAcceptorFd(const char *key_file, const char *cert_file, + const char *ca_file, const char *ca_path, + const char *cipher, enum enum_ssl_init_error* error, + const char *crl_file, const char * crl_path, const long ssl_ctx_flags) +{ + struct st_VioSSLFd *ssl_fd; + int verify= SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; + if (!(ssl_fd= new_VioSSLFd(key_file, cert_file, ca_file, + ca_path, cipher, FALSE, error, + crl_file, crl_path, ssl_ctx_flags))) + { + return 0; + } + /* Init the the VioSSLFd as a "acceptor" ie. the server side */ + + /* Set max number of cached sessions, returns the previous size */ + SSL_CTX_sess_set_cache_size(ssl_fd->ssl_context, 128); + + SSL_CTX_set_verify(ssl_fd->ssl_context, verify, NULL); + + /* + Set session_id - an identifier for this server session + Use the ssl_fd pointer + */ + SSL_CTX_set_session_id_context(ssl_fd->ssl_context, + (const unsigned char *)ssl_fd, + sizeof(ssl_fd)); + + return ssl_fd; +} + +void free_vio_ssl_acceptor_fd(struct st_VioSSLFd *fd) +{ + SSL_CTX_free(fd->ssl_context); + my_free(fd); +} +#endif /* HAVE_OPENSSL */ |