/* Services requests */
int service_request(void)
{
int ret;
char core_file[CORE_FILE_NAME_SZ];
struct ucred client_info;
/* Handles stopping of the servicing process */
signal(SIGTERM, sig_handler_service_proc);
signal(SIGSEGV, sig_handler_service_proc);
signal(SIGPIPE, sig_handler_service_proc);
/* Receive the message */
ret = receive_core_filename(core_file);
if (ret)
goto cleanup;
/* Fetch client PID */
ret = get_client_pid(&client_info);
if (ret)
goto cleanup;
/* Dump process */
ret = dump_task(&client_info, core_file);
if (ret)
goto cleanup;
cleanup:
close(new_sock);
if (ret == -1)
exit(EXIT_FAILURE);
exit(EXIT_SUCCESS);
}
/* Systemd socket for self dump */
int socket_dump(void)
{
int n, ret;
char core_file[CORE_FILE_NAME_SZ];
struct ucred client_info;
/* Fetching the Socket ID from systemd */
n = sd_listen_fds(0);
if (n > 1) {
gencore_log("Too many file descriptors received.\n");
return -1;
} else if (n == 1)
new_sock = SD_LISTEN_FDS_START + 0;
else
return -1;
/* Receive the message */
ret = receive_core_filename(core_file);
if (ret)
return -1;
/* Fetch client PID */
ret = get_client_pid(&client_info);
if (ret)
return -1;
/* Dump process */
ret = dump_task(&client_info, core_file);
if (ret)
return -1;
return 0;
}
int ipc_handle_connection(int fd, uint32_t mask, void *data) {
(void) fd; (void) data;
sway_log(L_DEBUG, "Event on IPC listening socket");
assert(mask == WLC_EVENT_READABLE);
int client_fd = accept(ipc_socket, NULL, NULL);
if (client_fd == -1) {
sway_log_errno(L_INFO, "Unable to accept IPC client connection");
return 0;
}
int flags;
if ((flags=fcntl(client_fd, F_GETFD)) == -1 || fcntl(client_fd, F_SETFD, flags|FD_CLOEXEC) == -1) {
sway_log_errno(L_INFO, "Unable to set CLOEXEC on IPC client socket");
close(client_fd);
return 0;
}
pid_t pid = get_client_pid(client_fd);
if (!(get_feature_policy(pid) & FEATURE_IPC)) {
sway_log(L_INFO, "Permission to connect to IPC socket denied to %d", pid);
const char *error = "{\"success\": false, \"message\": \"Permission denied\"}";
if (write(client_fd, &error, sizeof(error)) < (int)sizeof(error)) {
sway_log(L_DEBUG, "Failed to write entire error");
}
close(client_fd);
return 0;
}
struct ipc_client* client = malloc(sizeof(struct ipc_client));
client->payload_length = 0;
client->fd = client_fd;
client->subscribed_events = 0;
client->event_source = wlc_event_loop_add_fd(client_fd, WLC_EVENT_READABLE, ipc_client_handle_readable, client);
list_add(ipc_client_list, client);
return 0;
}
