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Code Activity

Cleanup SSL implementation

Browse Source 
Remove duplicate code
Merge common functions
Enforce MySQL coding standard


include/violite.h:
  Cleanup SSL implementation
sql-common/client.c:
  Cleanup SSL implementation
sql/mysql_priv.h:
  Cleanup SSL implementation
sql/mysqld.cc:
  Cleanup SSL implementation
sql/sql_acl.cc:
  Cleanup SSL implementation
vio/vio.c:
  Cleanup SSL implementation
vio/vio_priv.h:
  Cleanup SSL implementation
vio/viossl.c:
  Cleanup SSL implementation
vio/viosslfactories.c:
  Cleanup SSL implementation
This commit is contained in:
unknown
2006-03-10 16:41:14 +01:00
parent 91b3447c2d
commit b2d5243e97
9 changed files with 336 additions and 489 deletions
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106
sql-common/client.c
View File

@ -1514,8 +1514,7 @@ mysql_ssl_set(MYSQL *mysql __attribute__((unused)) ,
static void
mysql_ssl_free(MYSQL *mysql __attribute__((unused)))
{
struct st_VioSSLConnectorFd *st=
(struct st_VioSSLConnectorFd*) mysql->connector_fd;
struct st_VioSSLFd *ssl_fd= (struct st_VioSSLFd*) mysql->connector_fd;
DBUG_ENTER("mysql_ssl_free");
my_free(mysql->options.ssl_key, MYF(MY_ALLOW_ZERO_PTR));
@ -1523,8 +1522,8 @@ mysql_ssl_free(MYSQL *mysql __attribute__((unused)))
my_free(mysql->options.ssl_ca, MYF(MY_ALLOW_ZERO_PTR));
my_free(mysql->options.ssl_capath, MYF(MY_ALLOW_ZERO_PTR));
my_free(mysql->options.ssl_cipher, MYF(MY_ALLOW_ZERO_PTR));
if (st)
SSL_CTX_free(st->ssl_context);
if (ssl_fd)
SSL_CTX_free(ssl_fd->ssl_context);
my_free(mysql->connector_fd,MYF(MY_ALLOW_ZERO_PTR));
mysql->options.ssl_key = 0;
mysql->options.ssl_cert = 0;
@ -1568,6 +1567,63 @@ static MYSQL_METHODS client_methods=
#endif
};
int ssl_verify_server_cert(Vio *vio, const char* server_host)
{
SSL *ssl;
X509 *server_cert;
char *cp1, *cp2;
char buf[256];
DBUG_ENTER("ssl_verify_server_cert");
DBUG_PRINT("enter", ("server_host: %s", server_host));
if (!(ssl= (SSL*)vio->ssl_arg))
{
DBUG_PRINT("error", ("No SSL pointer found"));
return 1;
}
if (!server_host)
{
DBUG_PRINT("error", ("No server hostname supplied"));
return 1;
}
if (!(server_cert= SSL_get_peer_certificate(ssl)))
{
DBUG_PRINT("error", ("Could not get server certificate"));
return 1;
}
/*
We already know that the certificate exchanged was valid; the SSL library
handled that. Now we need to verify that the contents of the certificate
are what we expect.
*/
X509_NAME_oneline(X509_get_subject_name(server_cert), buf, sizeof(buf));
X509_free (server_cert);
// X509_NAME_get_text_by_NID(x509_get_subject_name(server_cert), NID_commonName, buf, sizeof(buf));... does the same thing
DBUG_PRINT("info", ("hostname in cert: %s", buf));
cp1 = strstr(buf, "/CN=");
if (cp1)
{
cp1 += 4; // Skip the "/CN=" that we found
cp2 = strchr(cp1, '/');
if (cp2)
*cp2 = '\0';
DBUG_PRINT("info", ("Server hostname in cert: ", cp1));
if (!strcmp(cp1, server_host))
{
/* Success */
DBUG_RETURN(0);
}
}
DBUG_PRINT("error", ("SSL certificate validation failure"));
DBUG_RETURN(1);
}
MYSQL *
CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
@ -2013,37 +2069,53 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
mysql->client_flag=client_flag;
#ifdef HAVE_OPENSSL
/*
Oops.. are we careful enough to not send ANY information without
encryption?
*/
if (client_flag & CLIENT_SSL)
{
/* Do the SSL layering. */
struct st_mysql_options *options= &mysql->options;
struct st_VioSSLFd *ssl_fd;
/*
Send client_flag, max_packet_size - unencrypted otherwise
the server does not know we want to do SSL
*/
if (my_net_write(net,buff,(uint) (end-buff)) || net_flush(net))
{
set_mysql_error(mysql, CR_SERVER_LOST, unknown_sqlstate);
goto error;
}
/* Do the SSL layering. */
if (!(mysql->connector_fd=
(gptr) new_VioSSLConnectorFd(options->ssl_key,
options->ssl_cert,
options->ssl_ca,
options->ssl_capath,
options->ssl_cipher)))
/* Create the VioSSLConnectorFd - init SSL and load certs */
if (!(ssl_fd= new_VioSSLConnectorFd(options->ssl_key,
options->ssl_cert,
options->ssl_ca,
options->ssl_capath,
options->ssl_cipher)))
{
set_mysql_error(mysql, CR_SSL_CONNECTION_ERROR, unknown_sqlstate);
goto error;
}
mysql->connector_fd= (void*)ssl_fd;
/* Connect to the server */
DBUG_PRINT("info", ("IO layer change in progress..."));
if (sslconnect((struct st_VioSSLConnectorFd*)(mysql->connector_fd),
mysql->net.vio, (long) (mysql->options.connect_timeout)))
if (sslconnect(ssl_fd, mysql->net.vio,
(long) (mysql->options.connect_timeout)))
{
set_mysql_error(mysql, CR_SSL_CONNECTION_ERROR, unknown_sqlstate);
goto error;
}
DBUG_PRINT("info", ("IO layer change done!"));
#if 0
/* Verify server cert */
if (mysql->options.ssl_verify_cert &&
ssl_verify_server_cert(mysql->net.vio, mysql->host))
{
set_mysql_error(mysql, CR_SSL_CONNECTION_ERROR, unknown_sqlstate);
goto error;
}
#endif
}
#endif /* HAVE_OPENSSL */