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Diffstat (limited to 'mysql/sql-common/client_authentication.cpp')
-rw-r--r--mysql/sql-common/client_authentication.cpp282
1 files changed, 0 insertions, 282 deletions
diff --git a/mysql/sql-common/client_authentication.cpp b/mysql/sql-common/client_authentication.cpp
deleted file mode 100644
index eaeb2d4..0000000
--- a/mysql/sql-common/client_authentication.cpp
+++ /dev/null
@@ -1,282 +0,0 @@
-/* Copyright (c) 2011, 2015, 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 */
-
-// First include (the generated) my_config.h, to get correct platform defines.
-#include "my_config.h"
-
-#if defined(HAVE_OPENSSL)
-#include "crypt_genhash_impl.h"
-#include "mysql/client_authentication.h"
-#include "m_ctype.h"
-#include "sql_common.h"
-#include "errmsg.h"
-#include "sql_string.h"
-
-#include <string.h>
-#include <stdarg.h>
-#if !defined(HAVE_YASSL)
-#include <openssl/rsa.h>
-#include <openssl/pem.h>
-#include <openssl/err.h>
-#if defined(_WIN32) && !defined(_OPENSSL_Applink) && defined(HAVE_OPENSSL_APPLINK_C)
-#include <openssl/applink.c>
-#endif
-#endif
-#include "mysql/plugin.h"
-
-#define MAX_CIPHER_LENGTH 1024
-
-#if !defined(HAVE_YASSL)
-mysql_mutex_t g_public_key_mutex;
-#endif
-
-int sha256_password_init(char *a, size_t b, int c, va_list d)
-{
-#if !defined(HAVE_YASSL)
- mysql_mutex_init(0,&g_public_key_mutex, MY_MUTEX_INIT_SLOW);
-#endif
- return 0;
-}
-
-int sha256_password_deinit(void)
-{
-#if !defined(HAVE_YASSL)
- mysql_mutex_destroy(&g_public_key_mutex);
-#endif
- return 0;
-}
-
-
-#if !defined(HAVE_YASSL)
-/**
- Reads and parse RSA public key data from a file.
-
- @param mysql connection handle with file path data
-
- @return Pointer to the RSA public key storage buffer
-*/
-
-RSA *rsa_init(MYSQL *mysql)
-{
- static RSA *g_public_key= NULL;
- RSA *key= NULL;
-
- mysql_mutex_lock(&g_public_key_mutex);
- key= g_public_key;
- mysql_mutex_unlock(&g_public_key_mutex);
-
- if (key != NULL)
- return key;
-
- FILE *pub_key_file= NULL;
-
- if (mysql->options.extension != NULL &&
- mysql->options.extension->server_public_key_path != NULL &&
- mysql->options.extension->server_public_key_path != '\0')
- {
- pub_key_file= fopen(mysql->options.extension->server_public_key_path,
- "r");
- }
- /* No public key is used; return 0 without errors to indicate this. */
- else
- return 0;
-
- if (pub_key_file == NULL)
- {
- /*
- If a key path was submitted but no key located then we print an error
- message. Else we just report that there is no public key.
- */
- my_message_local(WARNING_LEVEL, "Can't locate server public key '%s'",
- mysql->options.extension->server_public_key_path);
-
- return 0;
- }
-
- mysql_mutex_lock(&g_public_key_mutex);
- key= g_public_key= PEM_read_RSA_PUBKEY(pub_key_file, 0, 0, 0);
- mysql_mutex_unlock(&g_public_key_mutex);
- fclose(pub_key_file);
- if (g_public_key == NULL)
- {
- ERR_clear_error();
- my_message_local(WARNING_LEVEL, "Public key is not in PEM format: '%s'",
- mysql->options.extension->server_public_key_path);
- return 0;
- }
-
- return key;
-}
-#endif // !defined(HAVE_YASSL)
-
-/**
- Authenticate the client using the RSA or TLS and a SHA256 salted password.
-
- @param vio Provides plugin access to communication channel
- @param mysql Client connection handler
-
- @return Error status
- @retval CR_ERROR An error occurred.
- @retval CR_OK Authentication succeeded.
-*/
-
-extern "C"
-int sha256_password_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
-{
- bool uses_password= mysql->passwd[0] != 0;
-#if !defined(HAVE_YASSL)
- unsigned char encrypted_password[MAX_CIPHER_LENGTH];
- static char request_public_key= '\1';
- RSA *public_key= NULL;
- bool got_public_key_from_server= false;
-#endif
- bool connection_is_secure= false;
- unsigned char scramble_pkt[20];
- unsigned char *pkt;
-
-
- DBUG_ENTER("sha256_password_auth_client");
-
- /*
- Get the scramble from the server because we need it when sending encrypted
- password.
- */
- if (vio->read_packet(vio, &pkt) != SCRAMBLE_LENGTH + 1)
- {
- DBUG_PRINT("info",("Scramble is not of correct length."));
- DBUG_RETURN(CR_ERROR);
- }
- if (pkt[SCRAMBLE_LENGTH] != '\0')
- {
- DBUG_PRINT("info",("Missing protocol token in scramble data."));
- DBUG_RETURN(CR_ERROR);
- }
- /*
- Copy the scramble to the stack or it will be lost on the next use of the
- net buffer.
- */
- memcpy(scramble_pkt, pkt, SCRAMBLE_LENGTH);
-
- if (mysql_get_ssl_cipher(mysql) != NULL)
- connection_is_secure= true;
-
- /* If connection isn't secure attempt to get the RSA public key file */
- if (!connection_is_secure)
- {
- #if !defined(HAVE_YASSL)
- public_key= rsa_init(mysql);
-#endif
- }
-
- if (!uses_password)
- {
- /* We're not using a password */
- static const unsigned char zero_byte= '\0';
- if (vio->write_packet(vio, &zero_byte, 1))
- DBUG_RETURN(CR_ERROR);
- }
- else
- {
- /* Password is a 0-terminated byte array ('\0' character included) */
- unsigned int passwd_len= static_cast<unsigned int>(strlen(mysql->passwd) + 1);
- if (!connection_is_secure)
- {
-#if !defined(HAVE_YASSL)
- /*
- If no public key; request one from the server.
- */
- if (public_key == NULL)
- {
- if (vio->write_packet(vio, (const unsigned char *) &request_public_key,
- 1))
- DBUG_RETURN(CR_ERROR);
-
- int pkt_len= 0;
- unsigned char *pkt;
- if ((pkt_len= vio->read_packet(vio, &pkt)) == -1)
- DBUG_RETURN(CR_ERROR);
- BIO* bio= BIO_new_mem_buf(pkt, pkt_len);
- public_key= PEM_read_bio_RSA_PUBKEY(bio, NULL, NULL, NULL);
- BIO_free(bio);
- if (public_key == 0)
- {
- ERR_clear_error();
- DBUG_RETURN(CR_ERROR);
- }
- got_public_key_from_server= true;
- }
-
- /*
- An arbitrary limitation based on the assumption that passwords
- larger than e.g. 15 symbols don't contribute to security.
- Note also that it's furter restricted to RSA_size() - 41 down
- below, so this leaves 471 bytes of possible RSA key sizes which
- should be reasonably future-proof.
- We avoid heap allocation for speed reasons.
- */
- char passwd_scramble[512];
-
- if (passwd_len > sizeof(passwd_scramble))
- {
- /* password too long for the buffer */
- if (got_public_key_from_server)
- RSA_free(public_key);
- DBUG_RETURN(CR_ERROR);
- }
- memmove(passwd_scramble, mysql->passwd, passwd_len);
-
- /* Obfuscate the plain text password with the session scramble */
- xor_string(passwd_scramble, passwd_len - 1, (char *) scramble_pkt,
- SCRAMBLE_LENGTH);
- /* Encrypt the password and send it to the server */
- int cipher_length= RSA_size(public_key);
- /*
- When using RSA_PKCS1_OAEP_PADDING the password length must be less
- than RSA_size(rsa) - 41.
- */
- if (passwd_len + 41 >= (unsigned) cipher_length)
- {
- /* password message is to long */
- if (got_public_key_from_server)
- RSA_free(public_key);
- DBUG_RETURN(CR_ERROR);
- }
- RSA_public_encrypt(passwd_len, (unsigned char *) passwd_scramble,
- encrypted_password,
- public_key, RSA_PKCS1_OAEP_PADDING);
- if (got_public_key_from_server)
- RSA_free(public_key);
-
- if (vio->write_packet(vio, (uchar*) encrypted_password, cipher_length))
- DBUG_RETURN(CR_ERROR);
-#else
- set_mysql_extended_error(mysql, CR_AUTH_PLUGIN_ERR, unknown_sqlstate,
- ER(CR_AUTH_PLUGIN_ERR), "sha256_password",
- "Authentication requires SSL encryption");
- DBUG_RETURN(CR_ERROR); // If no openssl support
-#endif
- }
- else
- {
- /* The vio is encrypted already; just send the plain text passwd */
- if (vio->write_packet(vio, (uchar*) mysql->passwd, passwd_len))
- DBUG_RETURN(CR_ERROR);
- }
- }
-
- DBUG_RETURN(CR_OK);
-}
-
-#endif