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mariadb/vio/viosslfactories.c
monty@mashka.mysql.fi 2aecdd1a91 Big code cleanup/review before 4.0.2 release. 
(All commit emails since 4.0.1 checked)
This had to be done now, before the 4.1 tree changes to much, to make it easy to propagate bug fixes to the 4.1 tree.
2002-06-11 11:20:31 +03:00

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/* Copyright (C) 2000 MySQL AB
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; either version 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <my_global.h>
#ifdef HAVE_OPENSSL
#include <my_sys.h>
#include <mysql_com.h>
#include <violite.h>
static bool ssl_algorithms_added = FALSE;
static bool ssl_error_strings_loaded= FALSE;
static int verify_depth = 0;
static int verify_error = X509_V_OK;
static unsigned char dh512_p[]=
{
0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
0x47,0x74,0xE8,0x33,
};
static unsigned char dh512_g[]={
0x02,
};
static DH *get_dh512(void)
{
DH *dh;
if ((dh=DH_new()))
{
dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
dh->g=BN_bin2bn(dh512_g,sizeof(dh512_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)
{
char buf[200];
DBUG_PRINT("error", ("OpenSSL: %s:%s:%d:%s\n", ERR_error_string(l,buf),
file,line,(flags & ERR_TXT_STRING) ? data : "")) ;
}
DBUG_VOID_RETURN;
}
static int
vio_set_cert_stuff(SSL_CTX *ctx, const char *cert_file, const char *key_file)
{
DBUG_ENTER("vio_set_cert_stuff");
DBUG_PRINT("enter", ("ctx=%p, cert_file=%s, key_file=%s",
ctx, cert_file, key_file));
if (cert_file != NULL)
{
if (SSL_CTX_use_certificate_file(ctx,cert_file,SSL_FILETYPE_PEM) <= 0)
{
DBUG_PRINT("error",("unable to get certificate from '%s'\n",cert_file));
/* FIX stderr */
ERR_print_errors_fp(stderr);
DBUG_RETURN(0);
}
if (key_file == NULL)
key_file = cert_file;
if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
SSL_FILETYPE_PEM) <= 0)
{
DBUG_PRINT("error", ("unable to get private key from '%s'\n",key_file));
/* FIX stderr */
ERR_print_errors_fp(stderr);
DBUG_RETURN(0);
}
/*
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 (!SSL_CTX_check_private_key(ctx))
{
DBUG_PRINT("error",
("Private key does not match the certificate public key\n"));
DBUG_RETURN(0);
}
}
DBUG_RETURN(1);
}
static int
vio_verify_callback(int ok, X509_STORE_CTX *ctx)
{
char buf[256];
X509* err_cert;
int err,depth;
DBUG_ENTER("vio_verify_callback");
DBUG_PRINT("enter", ("ok=%d, ctx=%p", ok, ctx));
err_cert=X509_STORE_CTX_get_current_cert(ctx);
err= X509_STORE_CTX_get_error(ctx);
depth= X509_STORE_CTX_get_error_depth(ctx);
X509_NAME_oneline(X509_get_subject_name(err_cert),buf,sizeof(buf));
if (!ok)
{
DBUG_PRINT("error",("verify error: num: %d : '%s'\n",err,
X509_verify_cert_error_string(err)));
if (verify_depth >= depth)
{
ok=1;
verify_error=X509_V_OK;
}
else
{
verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
}
}
switch (ctx->error) {
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert),buf,256);
DBUG_PRINT("info",("issuer= %s\n",buf));
break;
case X509_V_ERR_CERT_NOT_YET_VALID:
case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
DBUG_PRINT("error", ("notBefore"));
/*ASN1_TIME_print_fp(stderr,X509_get_notBefore(ctx->current_cert));*/
break;
case X509_V_ERR_CERT_HAS_EXPIRED:
case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
DBUG_PRINT("error", ("notAfter error"));
/*ASN1_TIME_print_fp(stderr,X509_get_notAfter(ctx->current_cert));*/
break;
}
DBUG_PRINT("exit", ("%d", ok));
DBUG_RETURN(ok);
}
/************************ VioSSLConnectorFd **********************************/
struct st_VioSSLConnectorFd *
new_VioSSLConnectorFd(const char* key_file,
const char* cert_file,
const char* ca_file,
const char* ca_path,
const char* cipher)
{
int verify = SSL_VERIFY_PEER;
struct st_VioSSLConnectorFd* ptr;
int result;
DH *dh=NULL;
DBUG_ENTER("new_VioSSLConnectorFd");
DBUG_PRINT("enter",
("key_file=%s, cert_file=%s, ca_path=%s, ca_file=%s, cipher=%s",
key_file, cert_file, ca_path, ca_file, cipher));
if (!(ptr=((struct st_VioSSLConnectorFd*)
my_malloc(sizeof(struct st_VioSSLConnectorFd),MYF(0)))))
DBUG_RETURN(0);
ptr->ssl_context_= 0;
ptr->ssl_method_= 0;
/* FIXME: constants! */
if (!ssl_algorithms_added)
{
DBUG_PRINT("info", ("todo: OpenSSL_add_all_algorithms()"));
ssl_algorithms_added = TRUE;
OpenSSL_add_all_algorithms();
}
if (!ssl_error_strings_loaded)
{
DBUG_PRINT("info", ("todo:SSL_load_error_strings()"));
ssl_error_strings_loaded = TRUE;
SSL_load_error_strings();
}
ptr->ssl_method_ = TLSv1_client_method();
ptr->ssl_context_ = SSL_CTX_new(ptr->ssl_method_);
DBUG_PRINT("info", ("ssl_context_: %p",ptr->ssl_context_));
if (ptr->ssl_context_ == 0)
{
DBUG_PRINT("error", ("SSL_CTX_new failed"));
report_errors();
goto ctor_failure;
}
/*
SSL_CTX_set_options
SSL_CTX_set_info_callback
*/
if (cipher)
{
result=SSL_CTX_set_cipher_list(ptr->ssl_context_, cipher);
DBUG_PRINT("info",("SSL_set_cipher_list() returned %d",result));
}
SSL_CTX_set_verify(ptr->ssl_context_, verify, vio_verify_callback);
if (vio_set_cert_stuff(ptr->ssl_context_, cert_file, key_file) == -1)
{
DBUG_PRINT("error", ("vio_set_cert_stuff failed"));
report_errors();
goto ctor_failure;
}
if (SSL_CTX_load_verify_locations( ptr->ssl_context_, ca_file,ca_path) == 0)
{
DBUG_PRINT("warning", ("SSL_CTX_load_verify_locations failed"));
if (SSL_CTX_set_default_verify_paths(ptr->ssl_context_) == 0)
{
DBUG_PRINT("error", ("SSL_CTX_set_default_verify_paths failed"));
report_errors();
goto ctor_failure;
}
}
/* DH stuff */
dh=get_dh512();
SSL_CTX_set_tmp_dh(ptr->ssl_context_,dh);
DH_free(dh);
DBUG_RETURN(ptr);
ctor_failure:
DBUG_PRINT("exit", ("there was an error"));
my_free((gptr)ptr,MYF(0));
DBUG_RETURN(0);
}
/************************ VioSSLAcceptorFd **********************************/
struct st_VioSSLAcceptorFd*
new_VioSSLAcceptorFd(const char *key_file,
const char *cert_file,
const char *ca_file,
const char *ca_path,
const char *cipher)
{
int verify = (SSL_VERIFY_PEER |
SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
SSL_VERIFY_CLIENT_ONCE);
struct st_VioSSLAcceptorFd* ptr;
int result;
DH *dh=NULL;
DBUG_ENTER("new_VioSSLAcceptorFd");
DBUG_PRINT("enter",
("key_file=%s, cert_file=%s, ca_path=%s, ca_file=%s, cipher=%s",
key_file, cert_file, ca_path, ca_file, cipher));
ptr= ((struct st_VioSSLAcceptorFd*)
my_malloc(sizeof(struct st_VioSSLAcceptorFd),MYF(0)));
ptr->ssl_context_=0;
ptr->ssl_method_=0;
/* FIXME: constants! */
ptr->session_id_context_ = ptr;
if (!ssl_algorithms_added)
{
DBUG_PRINT("info", ("todo: OpenSSL_add_all_algorithms()"));
ssl_algorithms_added = TRUE;
OpenSSL_add_all_algorithms();
}
if (!ssl_error_strings_loaded)
{
DBUG_PRINT("info", ("todo: SSL_load_error_strings()"));
ssl_error_strings_loaded = TRUE;
SSL_load_error_strings();
}
ptr->ssl_method_= TLSv1_server_method();
ptr->ssl_context_= SSL_CTX_new(ptr->ssl_method_);
if (ptr->ssl_context_ == 0)
{
DBUG_PRINT("error", ("SSL_CTX_new failed"));
report_errors();
goto ctor_failure;
}
if (cipher)
{
result=SSL_CTX_set_cipher_list(ptr->ssl_context_, cipher);
DBUG_PRINT("info",("SSL_set_cipher_list() returned %d",result));
}
/* SSL_CTX_set_quiet_shutdown(ctx,1); */
SSL_CTX_sess_set_cache_size(ptr->ssl_context_,128);
/* DH? */
SSL_CTX_set_verify(ptr->ssl_context_, verify, vio_verify_callback);
SSL_CTX_set_session_id_context(ptr->ssl_context_,
(const uchar*) &(ptr->session_id_context_),
sizeof(ptr->session_id_context_));
/*
SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
*/
if (vio_set_cert_stuff(ptr->ssl_context_, cert_file, key_file) == -1)
{
DBUG_PRINT("error", ("vio_set_cert_stuff failed"));
report_errors();
goto ctor_failure;
}
if (SSL_CTX_load_verify_locations( ptr->ssl_context_, ca_file, ca_path) == 0)
{
DBUG_PRINT("warning", ("SSL_CTX_load_verify_locations failed"));
if (SSL_CTX_set_default_verify_paths(ptr->ssl_context_)==0)
{
DBUG_PRINT("error", ("SSL_CTX_set_default_verify_paths failed"));
report_errors();
goto ctor_failure;
}
}
/* DH stuff */
dh=get_dh512();
SSL_CTX_set_tmp_dh(ptr->ssl_context_,dh);
DH_free(dh);
DBUG_RETURN(ptr);
ctor_failure:
DBUG_PRINT("exit", ("there was an error"));
my_free((gptr) ptr,MYF(0));
DBUG_RETURN(0);
}
#endif /* HAVE_OPENSSL */
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