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Replace get_users implementation with new version

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The get_users function now combines the functionality of the old get_users
and get_all_users. This removes large parts of similar code.

Removed the listener resources as MySQLAuth was the only one that used it.
This commit is contained in:
Markus Mäkelä
2017-01-28 23:27:06 +02:00
parent 3d2fc2ccb2
commit acdde499ed
4 changed files with 192 additions and 1469 deletions
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96
server/modules/authenticator/MySQLAuth/mysql_auth.c
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@ -742,102 +742,6 @@ gw_check_mysql_scramble_data(DCB *dcb,
return (0 == memcmp(password, check_hash, SHA_DIGEST_LENGTH)) ?
MXS_AUTH_SUCCEEDED : MXS_AUTH_FAILED;
}
/**
* @brief If the client connection specifies a database, check existence
*
* The client can specify a default database, but if so, it must be one
* that exists. This function is chained from the previous one, and will
* amend the given return code if it is previously showing success.
*
* @param dcb Request handler DCB connected to the client
* @param database A string containing the database name
* @param auth_ret The authentication status prior to calling this function.
* @return Authentication status
* @note Authentication status codes are defined in maxscale/protocol/mysql.h
*/
int
check_db_name_after_auth(DCB *dcb, char *database, int auth_ret)
{
int db_exists = -1;
/* check for database name and possible match in resource hashtable */
if (database && strlen(database))
{
/* if database names are loaded we can check if db name exists */
if (dcb->listener->resources != NULL)
{
if (hashtable_fetch(dcb->listener->resources, database))
{
db_exists = 1;
}
else
{
db_exists = 0;
}
}
else
{
/* if database names are not loaded we don't allow connection with db name*/
db_exists = -1;
}
if (db_exists == 0 && auth_ret == MXS_AUTH_SUCCEEDED)
{
auth_ret = MXS_AUTH_FAILED_DB;
}
if (db_exists < 0 && auth_ret == MXS_AUTH_SUCCEEDED)
{
auth_ret = MXS_AUTH_FAILED;
}
}
return auth_ret;
}
/**
* @brief Function to easily call authentication and database checks.
*
* The two functions are called one after the other, with the return from
* the first passed to the second. For convenience and clarity this function
* combines the calls.
*
* @param dcb Request handler DCB connected to the client
* @param auth_token A string of bytes containing the authentication token
* @param auth_token_len An integer, the length of the preceding parameter
* @param protocol The protocol structure for the connection
* @param username String containing username
* @param stage1_hash A password hash for authentication
* @param database A string containing the name for the default database
* @return Authentication status
* @note Authentication status codes are defined in maxscale/protocol/mysql.h
*/
static int combined_auth_check(
DCB *dcb,
uint8_t *auth_token,
size_t auth_token_len,
MySQLProtocol *protocol,
char *username,
uint8_t *stage1_hash,
char *database
)
{
int auth_ret;
auth_ret = gw_check_mysql_scramble_data(dcb,
auth_token,
auth_token_len,
protocol->scramble,
sizeof(protocol->scramble),
username,
stage1_hash);
/* check for database name match in resource hashtable */
auth_ret = check_db_name_after_auth(dcb, database, auth_ret);
return auth_ret;
}
/**
* @brief Free the client data pointed to by the passed DCB.
*