Outils pour utilisateurs

Outils du site


misc:mumble_query

Différences

Ci-dessous, les différences entre deux révisions de la page.

Lien vers cette vue comparative

misc:mumble_query [2011/10/31 15:55] (Version actuelle)
Ligne 1: Ligne 1:
 +===== Query un serveur mumble en C =====
 +==== Doc ====
 +mirroir de http://​mumble.sourceforge.net/​Protocol :
  
 +The Mumble Protocol is Open Source, just like Mumble itself. The source code for the current version can be found in the Git repository in the file [[https://​github.com/​mumble-voip/​mumble/​blob/​master/​src/​Mumble.proto Mumble.proto]].
 +
 +=== Protocol documentation ====
 +
 +A complete documentation about the protocol can be found at 
 +[[https://​github.com/​mumble-voip/​mumble/​raw/​master/​doc/​mumble-protocol.pdf mumble-protocol.pdf]].
 +
 +=== UDP Ping packet ===
 +
 +Mumble supports querying the following data by sending a ping packet to the target server. Both the request and the response packets are formatted in Big Endian.
 +
 +The ping request packet contains the following data:
 +
 +^ Width ^ Data type ^ Value ^ Comment ^
 +| 4 bytes | int | 0 | Denotes the request type |
 +| 8 bytes | long long | ident | Used to identify the reponse. |
 +
 +
 +The response will then contain the following data: 
 +
 +^ Width ^ Data type ^ Value ^ Comment ^
 +| 4 bytes | int | Version | e.g., \x0\x1\x2\x3 for 1.2.3. Can be interpreted as one single int or four signed chars. | 
 +| 8 bytes | long long | ident | the ident value sent with the request | 
 +| 4 bytes | int | Currently connected users count | | 
 +| 4 bytes | int | Maximum users (slot count) | | 
 +| 4 bytes | int | Allowed bandwidth | | 
 +
 +
 +The response will then contain the following data: [[https://​gitorious.org/​mumble-scripts/​mumble-scripts/​blobs/​master/​Non-RPC/​mumble-ping.py|mumble-ping.py]]
 +
 +==== Source ====
 +<file c qmumble.c>​
 +#include <​arpa/​inet.h>​
 +#include <​netinet/​in.h>​
 +#include <​sys/​socket.h>​
 +#include <​stdio.h>​
 +#include <​sys/​types.h>​
 +#include <​unistd.h>​
 +#include <​limits.h>​
 +
 +#define MUM_QUERY_LENGTH 12
 +#define MUM_ANSWER_LENGTH 24
 +#define MUMBLE_DEF_PORT 64738
 +
 +int query_mumble(char *ip, int port, int *client_nb, int *slots_nb) {
 + struct sockaddr_in addr;
 + int s;
 +
 + char query[] = "​\0\0\0\0z2f4590h";​
 + char answer[24];
 +
 + if (client_nb == NULL || slots_nb == NULL) return 0;
 + if (port == 0) port = MUMBLE_DEF_PORT;​
 +
 + addr.sin_family = AF_INET;
 + addr.sin_port = htons(port);​
 + if (inet_aton(ip,​ &​addr.sin_addr)==0) return -1;
 + if ((s=socket(AF_INET,​ SOCK_DGRAM, IPPROTO_UDP))==-1) return -2;
 +
 + if (sendto(s, query, MUM_QUERY_LENGTH,​ 0, &addr, sizeof(addr))==-1) return -3;
 + if (recv(s, answer, MUM_ANSWER_LENGTH,​ 0)==-1) return -4;
 + close(s);
 +
 + *client_nb ​ = *(answer+12) & 0xFF; *client_nb = *client_nb << 8;
 + *client_nb += *(answer+13) & 0xFF; *client_nb = *client_nb << 8;
 + *client_nb += *(answer+14) & 0xFF; *client_nb = *client_nb << 8;
 + *client_nb += *(answer+15) & 0xFF;
 +
 + *slots_nb ​ = *(answer+16) & 0xFF; *slots_nb = *slots_nb << 8;
 + *slots_nb += *(answer+17) & 0xFF; *slots_nb = *slots_nb << 8;
 + *slots_nb += *(answer+18) & 0xFF; *slots_nb = *slots_nb << 8;
 + *slots_nb += *(answer+19) & 0xFF;
 + return 1;
 +}
 +
 +int main(int argc, char *argv[]) {
 + int res, a, b;
 + res = query_mumble("​88.191.129.216",​ 0, &a, &b);
 + printf("​%d/​%d connectés\n",​ a, b);
 + return res == 1 ? 0 : -1;
 +}
 +
 +</​file>​
misc/mumble_query.txt · Dernière modification: 2011/10/31 15:55 (modification externe)