wpa_cli: Use eloop during connection attempts in interactive mode
This changes the call flow to allow full eloop operations to be used while waiting for wpa_cli to establish a connection to wpa_supplicant in the beginning of an interactive session. This allows the cleanup steps to be more consistent and avoid debugging issues due to unfreed memory or other resources if wpa_cli is killed with Ctrl-c. Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen
parent
5ff72bdcab
commit
4be9f27595
1 changed files with 58 additions and 49 deletions
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@ -3777,12 +3777,6 @@ static void wpa_cli_ping(void *eloop_ctx, void *timeout_ctx)
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}
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static void wpa_cli_eloop_terminate(int sig, void *signal_ctx)
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{
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eloop_terminate();
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}
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static void wpa_cli_mon_receive(int sock, void *eloop_ctx, void *sock_ctx)
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{
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wpa_cli_recv_pending(mon_conn, 0);
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@ -3805,12 +3799,13 @@ static void wpa_cli_edit_eof_cb(void *ctx)
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}
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static void wpa_cli_interactive(void)
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{
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char *home, *hfile = NULL;
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const char *ps = wpa_ctrl_get_remote_ifname(ctrl_conn);
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static int warning_displayed = 0;
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static char *hfile = NULL;
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static int edit_started = 0;
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printf("\nInteractive mode\n\n");
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static void start_edit(void)
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{
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char *home;
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home = getenv("HOME");
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if (home) {
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@ -3821,16 +3816,49 @@ static void wpa_cli_interactive(void)
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os_snprintf(hfile, hfile_len, "%s/%s", home, fname);
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}
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eloop_register_signal_terminate(wpa_cli_eloop_terminate, NULL);
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edit_init(wpa_cli_edit_cmd_cb, wpa_cli_edit_eof_cb,
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wpa_cli_edit_completion_cb, NULL, hfile, ps);
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eloop_register_timeout(ping_interval, 0, wpa_cli_ping, NULL, NULL);
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if (edit_init(wpa_cli_edit_cmd_cb, wpa_cli_edit_eof_cb,
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wpa_cli_edit_completion_cb, NULL, hfile,
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wpa_ctrl_get_remote_ifname(ctrl_conn)) < 0) {
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eloop_terminate();
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return;
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}
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edit_started = 1;
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eloop_register_timeout(ping_interval, 0, wpa_cli_ping, NULL, NULL);
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}
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static void try_connection(void *eloop_ctx, void *timeout_ctx)
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{
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if (!wpa_cli_open_connection(ctrl_ifname, 1) == 0) {
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if (!warning_displayed) {
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printf("Could not connect to wpa_supplicant: "
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"%s - re-trying\n", ctrl_ifname);
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warning_displayed = 1;
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}
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eloop_register_timeout(1, 0, try_connection, NULL, NULL);
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return;
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}
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if (warning_displayed)
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printf("Connection established.\n");
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start_edit();
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}
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static void wpa_cli_interactive(void)
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{
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printf("\nInteractive mode\n\n");
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eloop_register_timeout(0, 0, try_connection, NULL, NULL);
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eloop_run();
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eloop_cancel_timeout(try_connection, NULL, NULL);
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cli_txt_list_flush(&p2p_peers);
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cli_txt_list_flush(&p2p_groups);
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cli_txt_list_flush(&bsses);
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if (edit_started)
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edit_deinit(hfile, wpa_cli_edit_filter_history_cb);
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os_free(hfile);
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eloop_cancel_timeout(wpa_cli_ping, NULL, NULL);
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@ -3890,10 +3918,10 @@ static void wpa_cli_cleanup(void)
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os_program_deinit();
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}
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static void wpa_cli_terminate(int sig)
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static void wpa_cli_terminate(int sig, void *ctx)
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{
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wpa_cli_cleanup();
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exit(0);
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eloop_terminate();
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}
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@ -3963,7 +3991,6 @@ static char * wpa_cli_get_default_ifname(void)
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int main(int argc, char *argv[])
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{
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int warning_displayed = 0;
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int c;
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int daemonize = 0;
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int ret = 0;
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@ -4033,30 +4060,13 @@ int main(int argc, char *argv[])
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}
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}
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#ifndef _WIN32_WCE
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signal(SIGINT, wpa_cli_terminate);
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signal(SIGTERM, wpa_cli_terminate);
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#endif /* _WIN32_WCE */
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eloop_register_signal_terminate(wpa_cli_terminate, NULL);
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if (ctrl_ifname == NULL)
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ctrl_ifname = wpa_cli_get_default_ifname();
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if (interactive) {
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for (; !global;) {
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if (wpa_cli_open_connection(ctrl_ifname, 1) == 0) {
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if (warning_displayed)
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printf("Connection established.\n");
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break;
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}
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if (!warning_displayed) {
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printf("Could not connect to wpa_supplicant: "
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"%s - re-trying\n", ctrl_ifname);
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warning_displayed = 1;
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}
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os_sleep(1, 0);
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continue;
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}
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wpa_cli_interactive();
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} else {
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if (!global &&
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wpa_cli_open_connection(ctrl_ifname, 0) < 0) {
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@ -4075,17 +4085,16 @@ int main(int argc, char *argv[])
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return -1;
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}
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}
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}
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if (daemonize && os_daemonize(pid_file))
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return -1;
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if (interactive)
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wpa_cli_interactive();
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else if (action_file)
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if (action_file)
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wpa_cli_action(ctrl_conn);
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else
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ret = wpa_request(ctrl_conn, argc - optind, &argv[optind]);
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ret = wpa_request(ctrl_conn, argc - optind,
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&argv[optind]);
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}
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os_free(ctrl_ifname);
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eloop_destroy();
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