/*
* @brief Adds the specified server to the master.
*/
static void Ms_AddServer(struct sockaddr_in *from) {
struct sockaddr_in addr;
if (Ms_GetServer(from)) {
Com_Print("Duplicate ping from %s\n", inet_ntoa(from->sin_addr));
return;
}
if (Ms_BlacklistServer(from)) {
Com_Print("Server %s has been blacklisted\n", inet_ntoa(from->sin_addr));
return;
}
ms_server_t *server = Z_Malloc(sizeof(*server));
server->ip = *from;
server->last_heartbeat = time(0);
server->port = from->sin_port;
ms_servers = g_list_prepend(ms_servers, server);
Com_Print("Server %s registered\n", inet_ntoa(from->sin_addr));
// send an acknowledgment
addr.sin_addr = server->ip.sin_addr;
addr.sin_family = AF_INET;
addr.sin_port = server->port;
memset(&addr.sin_zero, 0, sizeof(addr.sin_zero));
sendto(ms_sock, "\xFF\xFF\xFF\xFF" "ack", 7, 0, (struct sockaddr*) &addr, sizeof(addr));
}
/**
* @brief Removes the specified server.
*/
static void Ms_RemoveServer(struct sockaddr_in *from) {
ms_server_t *server = Ms_GetServer(from);
if (!server) {
Com_Warn("Shutdown from unregistered server %s\n", atos(from));
return;
}
Com_Print("Shutdown from %s\n", stos(server));
Ms_DropServer(server);
}
/*
* @brief
*/
static void Ms_Ack(struct sockaddr_in *from) {
ms_server_t *server;
if (!(server = Ms_GetServer(from)))
return;
Com_Print("Ack from %s (%d).\n", inet_ntoa(server->ip.sin_addr), server->queued_pings);
server->last_heartbeat = time(0);
server->queued_pings = 0;
server->heartbeats++;
server->validated = true;
}
/*
* @brief Removes the specified server.
*/
static void Ms_RemoveServer(struct sockaddr_in *from, ms_server_t *server) {
if (!server) // resolve from address
server = Ms_GetServer(from);
if (!server) {
Com_Print("Shutdown from unregistered server %s\n", inet_ntoa(from->sin_addr));
return;
}
Com_Print("Shutdown from %s\n", inet_ntoa(from->sin_addr));
Ms_DropServer(server);
}
/**
* @brief Acknowledge the server from the specified address.
*/
static void Ms_Ack(struct sockaddr_in *from) {
ms_server_t *server = Ms_GetServer(from);
if (server) {
Com_Verbose("Ack from %s (%d)\n", stos(server), server->queued_pings);
server->validated = true;
server->queued_pings = 0;
} else {
Com_Warn("Ack from unregistered server %s\n", atos(from));
}
}
/**
* @brief Accept a "heartbeat" from the specified server address.
*/
static void Ms_Heartbeat(struct sockaddr_in *from) {
ms_server_t *server = Ms_GetServer(from);
if (server) {
server->last_heartbeat = time(NULL);
Com_Verbose("Heartbeat from %s\n", stos(server));
const void *ack = "\xFF\xFF\xFF\xFF" "ack";
sendto(ms_sock, ack, 7, 0, (struct sockaddr *) &server->addr, sizeof(server->addr));
} else {
Ms_AddServer(from);
}
}
/*
* @brief
*/
static void Ms_Heartbeat(struct sockaddr_in *from) {
ms_server_t *server;
struct sockaddr_in addr;
if ((server = Ms_GetServer(from))) { // update their timestamp
addr.sin_addr = server->ip.sin_addr;
addr.sin_family = AF_INET;
addr.sin_port = server->port;
memset(&addr.sin_zero, 0, sizeof(addr.sin_zero));
server->validated = true;
server->last_heartbeat = time(0);
Com_Print("Heartbeat from %s.\n", inet_ntoa(server->ip.sin_addr));
sendto(ms_sock, "\xFF\xFF\xFF\xFF" "ack", 7, 0, (struct sockaddr*) &addr, sizeof(addr));
return;
}
Ms_AddServer(from);
}
/**
* @brief Adds the specified server to the master.
*/
static void Ms_AddServer(struct sockaddr_in *from) {
if (Ms_GetServer(from)) {
Com_Warn("Duplicate ping from %s\n", atos(from));
return;
}
if (Ms_BlacklistServer(from)) {
Com_Warn("Server %s has been blacklisted\n", atos(from));
return;
}
ms_server_t *server = Mem_Malloc(sizeof(ms_server_t));
server->addr = *from;
server->last_heartbeat = time(NULL);
ms_servers = g_list_prepend(ms_servers, server);
Com_Print("Server %s registered\n", stos(server));
// send an acknowledgment
sendto(ms_sock, "\xFF\xFF\xFF\xFF" "ack", 7, 0, (struct sockaddr *) from, sizeof(*from));
}
