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Moved mysql_send_auth_error into mysql_common.c

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mysql_send_auth_error is called if an user is not in the gateway users table
This commit is contained in:
Massimiliano Pinto
2013-07-15 11:17:44 +02:00
parent 5d2dc8961f
commit 0d1a74c87a
4 changed files with 100 additions and 101 deletions
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84
modules/protocol/mysql_common.c
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@ -625,9 +625,9 @@ int gw_send_change_user_to_backend(char *dbname, char *user, uint8_t *passwd, My
dcb = conn->descriptor;
//#ifdef DEBUG_MYSQL_CONN
#ifdef DEBUG_MYSQL_CONN
fprintf(stderr, ">> Sending credentials %s, %s, db %s\n", user, passwd, dbname);
//#endif
#endif
// Zero the vars
memset(&server_capabilities, '\0', sizeof(server_capabilities));
@ -881,7 +881,7 @@ int gw_find_mysql_user_password_sha1(char *username, uint8_t *gateway_password,
user_password = (char *)users_fetch(service->users, username);
if (!user_password) {
fprintf(stderr, ">>> MYSQL user NOT FOUND: %s\n", username);
//fprintf(stderr, ">>> MYSQL user NOT FOUND: %s\n", username);
return 1;
}
@ -896,3 +896,81 @@ int gw_find_mysql_user_password_sha1(char *username, uint8_t *gateway_password,
return 0;
}
/**
* mysql_send_auth_error
*
* Send a MySQL protocol ERR message, for gateway authentication error to the dcb
*
* @param dcb Descriptor Control Block for the connection to which the OK is sent
* @param packet_number
* @param in_affected_rows
* @param mysql_message
* @return packet length
*
*/
int
mysql_send_auth_error (DCB *dcb, int packet_number, int in_affected_rows, const char* mysql_message) {
uint8_t *outbuf = NULL;
uint8_t mysql_payload_size = 0;
uint8_t mysql_packet_header[4];
uint8_t *mysql_payload = NULL;
uint8_t field_count = 0;
uint8_t mysql_err[2];
uint8_t mysql_statemsg[6];
unsigned int mysql_errno = 0;
const char *mysql_error_msg = NULL;
const char *mysql_state = NULL;
GWBUF *buf;
mysql_errno = 1045;
mysql_error_msg = "Access denied!";
mysql_state = "2800";
field_count = 0xff;
gw_mysql_set_byte2(mysql_err, mysql_errno);
mysql_statemsg[0]='#';
memcpy(mysql_statemsg+1, mysql_state, 5);
if (mysql_message != NULL) {
mysql_error_msg = mysql_message;
}
mysql_payload_size = sizeof(field_count) + sizeof(mysql_err) + sizeof(mysql_statemsg) + strlen(mysql_error_msg);
// allocate memory for packet header + payload
if ((buf = gwbuf_alloc(sizeof(mysql_packet_header) + mysql_payload_size)) == NULL)
{
return 0;
}
outbuf = GWBUF_DATA(buf);
// write packet header with packet number
gw_mysql_set_byte3(mysql_packet_header, mysql_payload_size);
mysql_packet_header[3] = packet_number;
// write header
memcpy(outbuf, mysql_packet_header, sizeof(mysql_packet_header));
mysql_payload = outbuf + sizeof(mysql_packet_header);
// write field
memcpy(mysql_payload, &field_count, sizeof(field_count));
mysql_payload = mysql_payload + sizeof(field_count);
// write errno
memcpy(mysql_payload, mysql_err, sizeof(mysql_err));
mysql_payload = mysql_payload + sizeof(mysql_err);
// write sqlstate
memcpy(mysql_payload, mysql_statemsg, sizeof(mysql_statemsg));
mysql_payload = mysql_payload + sizeof(mysql_statemsg);
// write err messg
memcpy(mysql_payload, mysql_error_msg, strlen(mysql_error_msg));
// writing data in the Client buffer queue
dcb->func.write(dcb, buf);
return sizeof(mysql_packet_header) + mysql_payload_size;
}