hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added DCB_STATE_CONNECT fro backe d connect status

Browse Source 
Added gw_decode_mysql_server_handshake() in mysql_common.c
This commit is contained in:
Massimiliano Pinto
2013-07-01 11:37:26 +02:00
parent 5a4ae09c51
commit 0457505721
2 changed files with 81 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
modules/include/mysql_client_server_protocol.h
View File

@ -103,13 +103,14 @@ typedef struct mysql_session {
} MYSQL_session; } MYSQL_session;
/* MySQL Protocol States */ /* MySQL Protocol States */
#define MYSQL_ALLOC 0 /* Allocate data */ #define MYSQL_ALLOC 0 /* Allocate data */
#define MYSQL_AUTH_SENT 1 /* Authentication handshake has been sent */ #define MYSQL_AUTH_SENT 1 /* Authentication handshake has been sent */
#define MYSQL_AUTH_RECV 2 /* Received user, password, db and capabilities */ #define MYSQL_AUTH_RECV 2 /* Received user, password, db and capabilities */
#define MYSQL_AUTH_FAILED 3 /* Auth failed, return error packet */ #define MYSQL_AUTH_FAILED 3 /* Auth failed, return error packet */
#define MYSQL_IDLE 4 /* Auth done. Protocol is idle, waiting for statements */ #define MYSQL_IDLE 4 /* Auth done. Protocol is idle, waiting for statements */
#define MYSQL_ROUTING 5 /* The received command has been routed to backend(s) */ #define MYSQL_ROUTING 5 /* The received command has been routed to backends */
#define MYSQL_WAITING_RESULT 6 /* Waiting for result set */ #define MYSQL_WAITING_RESULT 6 /* Waiting for result set */
#define MYSQL_CONNECTED 7 /* Backend socket Connected */
/* Protocol packing macros. */ /* Protocol packing macros. */
#define gw_mysql_set_byte2(__buffer, __int) do { \ #define gw_mysql_set_byte2(__buffer, __int) do { \

73
modules/protocol/mysql_common.c
View File

@ -92,3 +92,76 @@ void gw_mysql_close(MySQLProtocol **ptr) {
#endif #endif
} }
// Decode mysql handshake
int gw_decode_mysql_server_handshake(MySQLProtocol *conn, uint8_t *payload) {
int server_protocol;
uint8_t *server_version_end = NULL;
uint16_t mysql_server_capabilities_one;
uint16_t mysql_server_capabilities_two;
unsigned long tid =0;
uint8_t scramble_data_1[8] = "";
uint8_t scramble_data_2[12] = "";
uint8_t capab_ptr[4];
int scramble_len;
uint8_t scramble[GW_MYSQL_SCRAMBLE_SIZE];
uint32_t server_capabilities;
uint32_t final_capabilities;
// zero the vars
memset(&server_capabilities, '\0', sizeof(server_capabilities));
memset(&final_capabilities, '\0', sizeof(final_capabilities));
// Get server protocol
server_protocol= payload[0];
payload++;
// Get server version (string)
server_version_end = (uint8_t *) gw_strend((char*) payload);
payload = server_version_end + 1;
// get ThreadID
tid = gw_mysql_get_byte4(payload);
memcpy(&conn->tid, &tid, 4);
payload +=4;
// scramble_part 1
memcpy(scramble_data_1, payload, 8);
payload += 8;
// 1 filler
payload++;
mysql_server_capabilities_one = gw_mysql_get_byte2(payload);
//Get capabilities_part 1 (2 bytes) + 1 language + 2 server_status
payload +=5;
mysql_server_capabilities_two = gw_mysql_get_byte2(payload);
memcpy(&capab_ptr, &mysql_server_capabilities_one, 2);
// get capabilities part 2 (2 bytes)
memcpy(&(capab_ptr[2]), &mysql_server_capabilities_two, 2);
// 2 bytes shift
payload+=2;
// get scramble len
scramble_len = payload[0] -1;
payload += 11;
// copy the second part of the scramble
memcpy(scramble_data_2, payload, scramble_len - 8);
memcpy(scramble, scramble_data_1, 8);
memcpy(scramble + 8, scramble_data_2, scramble_len - 8);
// full 20 bytes scramble is ready
memcpy(conn->scramble, scramble, GW_MYSQL_SCRAMBLE_SIZE);
return 0;
}
///