mirror of
https://github.com/MariaDB/server.git
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338 lines
9.7 KiB
C
338 lines
9.7 KiB
C
/* Copyright (c) 2000, 2015, Oracle and/or its affiliates.
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Copyright (c) 2011, 2015, MariaDB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "vio_priv.h"
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#ifdef HAVE_OPENSSL
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static my_bool ssl_algorithms_added = FALSE;
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static my_bool ssl_error_strings_loaded= FALSE;
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/* the function below was generated with "openssl dhparam -2 -C 1024" */
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static
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DH *get_dh1024()
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{
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static unsigned char dh1024_p[]={
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0xEC,0x46,0x7E,0xF9,0x4E,0x10,0x29,0xDC,0x44,0x97,0x71,0xFD,
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0x71,0xC6,0x9F,0x0D,0xD1,0x09,0xF6,0x58,0x6F,0xAD,0xCA,0xF4,
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0x37,0xD5,0xC3,0xBD,0xC3,0x9A,0x51,0x66,0x2C,0x58,0xBD,0x02,
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0xBD,0xBA,0xBA,0xFC,0xE7,0x0E,0x5A,0xE5,0x97,0x81,0xC3,0xF3,
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0x28,0x2D,0xAD,0x00,0x91,0xEF,0xF8,0xF0,0x5D,0xE9,0xE7,0x18,
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0xE2,0xAD,0xC4,0x70,0xC5,0x3C,0x12,0x8A,0x80,0x6A,0x9F,0x3B,
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0x00,0xA2,0x8F,0xA9,0x26,0xB0,0x0E,0x7F,0xED,0xF6,0xC2,0x03,
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0x81,0xB5,0xC5,0x41,0xD0,0x00,0x2B,0x21,0xD4,0x4B,0x74,0xA6,
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0xD7,0x1A,0x0E,0x82,0xC8,0xEE,0xD4,0xB1,0x6F,0xB4,0x79,0x01,
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0x8A,0xF1,0x12,0xD7,0x3C,0xFD,0xCB,0x9B,0xAE,0x1C,0xA9,0x0F,
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0x3D,0x0F,0xF8,0xD6,0x7D,0xDE,0xD6,0x0B,
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};
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static unsigned char dh1024_g[]={
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0x02,
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};
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DH *dh;
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if ((dh=DH_new()) == NULL) return(NULL);
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dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
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dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
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if ((dh->p == NULL) || (dh->g == NULL))
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{ DH_free(dh); return(NULL); }
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return(dh);
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}
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static void
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report_errors()
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{
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unsigned long l;
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const char* file;
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const char* data;
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int line,flags;
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DBUG_ENTER("report_errors");
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while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0)
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{
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#ifndef DBUG_OFF /* Avoid warning */
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char buf[200];
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DBUG_PRINT("error", ("OpenSSL: %s:%s:%d:%s\n", ERR_error_string(l,buf),
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file,line,(flags & ERR_TXT_STRING) ? data : "")) ;
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#endif
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}
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DBUG_VOID_RETURN;
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}
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static const char*
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ssl_error_string[] =
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{
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"No error",
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"Unable to get certificate",
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"Unable to get private key",
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"Private key does not match the certificate public key",
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"SSL_CTX_set_default_verify_paths failed",
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"Failed to set ciphers to use",
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"SSL_CTX_new failed"
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};
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const char*
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sslGetErrString(enum enum_ssl_init_error e)
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{
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DBUG_ASSERT(SSL_INITERR_NOERROR < e && e < SSL_INITERR_LASTERR);
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return ssl_error_string[e];
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}
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static int
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vio_set_cert_stuff(SSL_CTX *ctx, const char *cert_file, const char *key_file,
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enum enum_ssl_init_error* error)
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{
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DBUG_ENTER("vio_set_cert_stuff");
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DBUG_PRINT("enter", ("ctx: 0x%lx cert_file: %s key_file: %s",
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(long) ctx, cert_file, key_file));
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if (!cert_file && key_file)
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cert_file= key_file;
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if (!key_file && cert_file)
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key_file= cert_file;
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if (cert_file &&
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SSL_CTX_use_certificate_chain_file(ctx, cert_file) <= 0)
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{
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*error= SSL_INITERR_CERT;
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DBUG_PRINT("error",("%s from file '%s'", sslGetErrString(*error), cert_file));
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DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
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fprintf(stderr, "SSL error: %s from '%s'\n", sslGetErrString(*error),
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cert_file);
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fflush(stderr);
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DBUG_RETURN(1);
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}
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if (key_file &&
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SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0)
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{
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*error= SSL_INITERR_KEY;
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DBUG_PRINT("error", ("%s from file '%s'", sslGetErrString(*error), key_file));
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DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
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fprintf(stderr, "SSL error: %s from '%s'\n", sslGetErrString(*error),
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key_file);
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fflush(stderr);
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DBUG_RETURN(1);
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}
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/*
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If we are using DSA, we can copy the parameters from the private key
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Now we know that a key and cert have been set against the SSL context
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*/
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if (cert_file && !SSL_CTX_check_private_key(ctx))
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{
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*error= SSL_INITERR_NOMATCH;
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DBUG_PRINT("error", ("%s",sslGetErrString(*error)));
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DBUG_EXECUTE("error", ERR_print_errors_fp(DBUG_FILE););
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fprintf(stderr, "SSL error: %s\n", sslGetErrString(*error));
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fflush(stderr);
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DBUG_RETURN(1);
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}
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DBUG_RETURN(0);
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}
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static void check_ssl_init()
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{
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if (!ssl_algorithms_added)
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{
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ssl_algorithms_added= TRUE;
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SSL_library_init();
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OpenSSL_add_all_algorithms();
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}
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if (!ssl_error_strings_loaded)
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{
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ssl_error_strings_loaded= TRUE;
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SSL_load_error_strings();
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}
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}
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/************************ VioSSLFd **********************************/
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static struct st_VioSSLFd *
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new_VioSSLFd(const char *key_file, const char *cert_file,
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const char *ca_file, const char *ca_path,
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const char *cipher, my_bool is_client_method,
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enum enum_ssl_init_error* error)
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{
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DH *dh;
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struct st_VioSSLFd *ssl_fd;
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long ssl_ctx_options= SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3;
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DBUG_ENTER("new_VioSSLFd");
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DBUG_PRINT("enter",
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("key_file: '%s' cert_file: '%s' ca_file: '%s' ca_path: '%s' "
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"cipher: '%s'",
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key_file ? key_file : "NULL",
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cert_file ? cert_file : "NULL",
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ca_file ? ca_file : "NULL",
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ca_path ? ca_path : "NULL",
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cipher ? cipher : "NULL"));
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check_ssl_init();
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if (!(ssl_fd= ((struct st_VioSSLFd*)
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my_malloc(sizeof(struct st_VioSSLFd),MYF(0)))))
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DBUG_RETURN(0);
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if (!(ssl_fd->ssl_context= SSL_CTX_new(is_client_method ?
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SSLv23_client_method() :
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SSLv23_server_method())))
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{
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*error= SSL_INITERR_MEMFAIL;
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DBUG_PRINT("error", ("%s", sslGetErrString(*error)));
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report_errors();
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my_free(ssl_fd);
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DBUG_RETURN(0);
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}
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SSL_CTX_set_options(ssl_fd->ssl_context, ssl_ctx_options);
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/*
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Set the ciphers that can be used
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NOTE: SSL_CTX_set_cipher_list will return 0 if
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none of the provided ciphers could be selected
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*/
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if (cipher &&
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SSL_CTX_set_cipher_list(ssl_fd->ssl_context, cipher) == 0)
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{
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*error= SSL_INITERR_CIPHERS;
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DBUG_PRINT("error", ("%s", sslGetErrString(*error)));
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report_errors();
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SSL_CTX_free(ssl_fd->ssl_context);
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my_free(ssl_fd);
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DBUG_RETURN(0);
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}
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/* Load certs from the trusted ca */
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if (SSL_CTX_load_verify_locations(ssl_fd->ssl_context, ca_file, ca_path) == 0)
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{
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DBUG_PRINT("warning", ("SSL_CTX_load_verify_locations failed"));
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if (ca_file || ca_path)
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{
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/* fail only if ca file or ca path were supplied and looking into
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them fails. */
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*error= SSL_INITERR_BAD_PATHS;
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DBUG_PRINT("error", ("SSL_CTX_load_verify_locations failed : %s",
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sslGetErrString(*error)));
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report_errors();
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SSL_CTX_free(ssl_fd->ssl_context);
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my_free(ssl_fd);
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DBUG_RETURN(0);
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}
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/* otherwise go use the defaults */
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if (SSL_CTX_set_default_verify_paths(ssl_fd->ssl_context) == 0)
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{
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*error= SSL_INITERR_BAD_PATHS;
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DBUG_PRINT("error", ("%s", sslGetErrString(*error)));
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report_errors();
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SSL_CTX_free(ssl_fd->ssl_context);
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my_free(ssl_fd);
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DBUG_RETURN(0);
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}
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}
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if (vio_set_cert_stuff(ssl_fd->ssl_context, cert_file, key_file, error))
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{
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DBUG_PRINT("error", ("vio_set_cert_stuff failed"));
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report_errors();
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SSL_CTX_free(ssl_fd->ssl_context);
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my_free(ssl_fd);
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DBUG_RETURN(0);
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}
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/* DH stuff */
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dh=get_dh1024();
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SSL_CTX_set_tmp_dh(ssl_fd->ssl_context, dh);
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DH_free(dh);
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DBUG_PRINT("exit", ("OK 1"));
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DBUG_RETURN(ssl_fd);
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}
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/************************ VioSSLConnectorFd **********************************/
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struct st_VioSSLFd *
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new_VioSSLConnectorFd(const char *key_file, const char *cert_file,
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const char *ca_file, const char *ca_path,
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const char *cipher, enum enum_ssl_init_error* error)
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{
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struct st_VioSSLFd *ssl_fd;
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int verify= SSL_VERIFY_PEER;
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/*
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Turn off verification of servers certificate if both
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ca_file and ca_path is set to NULL
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*/
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if (ca_file == 0 && ca_path == 0)
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verify= SSL_VERIFY_NONE;
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if (!(ssl_fd= new_VioSSLFd(key_file, cert_file, ca_file,
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ca_path, cipher, TRUE, error)))
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{
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return 0;
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}
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/* Init the VioSSLFd as a "connector" ie. the client side */
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SSL_CTX_set_verify(ssl_fd->ssl_context, verify, NULL);
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return ssl_fd;
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}
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/************************ VioSSLAcceptorFd **********************************/
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struct st_VioSSLFd *
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new_VioSSLAcceptorFd(const char *key_file, const char *cert_file,
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const char *ca_file, const char *ca_path,
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const char *cipher, enum enum_ssl_init_error* error)
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{
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struct st_VioSSLFd *ssl_fd;
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int verify= SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
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if (!(ssl_fd= new_VioSSLFd(key_file, cert_file, ca_file,
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ca_path, cipher, FALSE, error)))
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{
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return 0;
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}
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/* Init the the VioSSLFd as a "acceptor" ie. the server side */
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/* Set max number of cached sessions, returns the previous size */
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SSL_CTX_sess_set_cache_size(ssl_fd->ssl_context, 128);
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SSL_CTX_set_verify(ssl_fd->ssl_context, verify, NULL);
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/*
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Set session_id - an identifier for this server session
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Use the ssl_fd pointer
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*/
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SSL_CTX_set_session_id_context(ssl_fd->ssl_context,
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(const unsigned char *)ssl_fd,
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sizeof(ssl_fd));
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return ssl_fd;
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}
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void free_vio_ssl_acceptor_fd(struct st_VioSSLFd *fd)
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{
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SSL_CTX_free(fd->ssl_context);
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my_free(fd);
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}
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#endif /* HAVE_OPENSSL */
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