#include <stdbool.h>
#include <stdint.h>
#include <xcb/xcb.h>
+#include <xcb/xkb.h>
#include <xcb/dpms.h>
#include <err.h>
#include <assert.h>
#include <security/pam_appl.h>
-#include <X11/Xlib-xcb.h>
#include <getopt.h>
#include <string.h>
#include <ev.h>
#include <sys/mman.h>
-#include <X11/XKBlib.h>
-#include <X11/extensions/XKBfile.h>
#include <xkbcommon/xkbcommon.h>
+#include <xkbcommon/xkbcommon-x11.h>
#include <cairo.h>
#include <cairo/cairo-xcb.h>
#include "unlock_indicator.h"
#include "xinerama.h"
+#define TSTAMP_N_SECS(n) (n * 1.0)
+#define TSTAMP_N_MINS(n) (60 * TSTAMP_N_SECS(n))
#define START_TIMER(timer_obj, timeout, callback) \
timer_obj = start_timer(timer_obj, timeout, callback)
#define STOP_TIMER(timer_obj) \
typedef void (*ev_callback_t)(EV_P_ ev_timer *w, int revents);
/* We need this for libxkbfile */
-static Display *display;
char color[7] = "ffffff";
+int inactivity_timeout = 30;
uint32_t last_resolution[2];
xcb_window_t win;
static xcb_cursor_t cursor;
struct ev_loop *main_loop;
static struct ev_timer *clear_pam_wrong_timeout;
static struct ev_timer *clear_indicator_timeout;
+static struct ev_timer *dpms_timeout;
+static struct ev_timer *discard_passwd_timeout;
extern unlock_state_t unlock_state;
extern pam_state_t pam_state;
+int failed_attempts = 0;
+bool show_failed_attempts = false;
static struct xkb_state *xkb_state;
static struct xkb_context *xkb_context;
static struct xkb_keymap *xkb_keymap;
+static uint8_t xkb_base_event;
+static uint8_t xkb_base_error;
cairo_surface_t *img = NULL;
bool tile = false;
bool ignore_empty_password = false;
+bool skip_repeated_empty_password = false;
/* isutf, u8_dec © 2005 Jeff Bezanson, public domain */
#define isutf(c) (((c) & 0xC0) != 0x80)
* Necessary so that we can properly let xkbcommon track the keyboard state and
* translate keypresses to utf-8.
*
- * Ideally, xkbcommon would ship something like this itself, but as of now
- * (version 0.2.0), it doesn’t.
- *
- * TODO: Once xcb-xkb is enabled by default and released, we should port this
- * code to xcb-xkb. See also https://github.com/xkbcommon/libxkbcommon/issues/1
- *
*/
static bool load_keymap(void) {
- bool ret = false;
- XkbFileInfo result;
- memset(&result, '\0', sizeof(result));
- result.xkb = XkbGetKeyboard(display, XkbAllMapComponentsMask, XkbUseCoreKbd);
- if (result.xkb == NULL) {
- fprintf(stderr, "[i3lock] XKB: XkbGetKeyboard failed\n");
- return false;
- }
-
- FILE *temp = tmpfile();
- if (temp == NULL) {
- fprintf(stderr, "[i3lock] could not create tempfile\n");
- return false;
- }
-
- bool ok = XkbWriteXKBKeymap(temp, &result, false, false, NULL, NULL);
- if (!ok) {
- fprintf(stderr, "[i3lock] XkbWriteXKBKeymap failed\n");
- goto out;
- }
-
- rewind(temp);
-
if (xkb_context == NULL) {
if ((xkb_context = xkb_context_new(0)) == NULL) {
fprintf(stderr, "[i3lock] could not create xkbcommon context\n");
- goto out;
+ return false;
}
}
- if (xkb_keymap != NULL)
- xkb_keymap_unref(xkb_keymap);
+ xkb_keymap_unref(xkb_keymap);
- if ((xkb_keymap = xkb_keymap_new_from_file(xkb_context, temp, XKB_KEYMAP_FORMAT_TEXT_V1, 0)) == NULL) {
- fprintf(stderr, "[i3lock] xkb_keymap_new_from_file failed\n");
- goto out;
+ int32_t device_id = xkb_x11_get_core_keyboard_device_id(conn);
+ DEBUG("device = %d\n", device_id);
+ if ((xkb_keymap = xkb_x11_keymap_new_from_device(xkb_context, conn, device_id, 0)) == NULL) {
+ fprintf(stderr, "[i3lock] xkb_x11_keymap_new_from_device failed\n");
+ return false;
}
- struct xkb_state *new_state = xkb_state_new(xkb_keymap);
+ struct xkb_state *new_state =
+ xkb_x11_state_new_from_device(xkb_keymap, conn, device_id);
if (new_state == NULL) {
- fprintf(stderr, "[i3lock] xkb_state_new failed\n");
- goto out;
+ fprintf(stderr, "[i3lock] xkb_x11_state_new_from_device failed\n");
+ return false;
}
- /* Get the initial modifier state to be in sync with the X server.
- * See https://github.com/xkbcommon/libxkbcommon/issues/1 for why we ignore
- * the base and latched fields. */
- XkbStateRec state_rec;
- XkbGetState(display, XkbUseCoreKbd, &state_rec);
-
- xkb_state_update_mask(new_state,
- 0, 0, state_rec.locked_mods,
- 0, 0, state_rec.locked_group);
-
- if (xkb_state != NULL)
- xkb_state_unref(xkb_state);
+ xkb_state_unref(xkb_state);
xkb_state = new_state;
- ret = true;
-out:
- XkbFreeKeyboard(result.xkb, XkbAllComponentsMask, true);
- fclose(temp);
- return ret;
+ return true;
}
/*
}
/*
- * Resets pam_state to STATE_PAM_IDLE 2 seconds after an unsuccesful
+ * Resets pam_state to STATE_PAM_IDLE 2 seconds after an unsuccessful
* authentication event.
*
*/
redraw_screen();
/* Now free this timeout. */
- ev_timer_stop(main_loop, clear_pam_wrong_timeout);
- free(clear_pam_wrong_timeout);
- clear_pam_wrong_timeout = NULL;
+ STOP_TIMER(clear_pam_wrong_timeout);
}
static void clear_indicator_cb(EV_P_ ev_timer *w, int revents) {
unlock_state = STATE_KEY_PRESSED;
}
-static void input_done(void) {
- if (clear_pam_wrong_timeout) {
- ev_timer_stop(main_loop, clear_pam_wrong_timeout);
- free(clear_pam_wrong_timeout);
- clear_pam_wrong_timeout = NULL;
- }
+static void turn_off_monitors_cb(EV_P_ ev_timer *w, int revents) {
+ if (input_position == 0)
+ turn_monitors_off();
+ STOP_TIMER(dpms_timeout);
+}
+
+static void discard_passwd_cb(EV_P_ ev_timer *w, int revents) {
+ clear_input();
+ turn_monitors_off();
+ STOP_TIMER(discard_passwd_timeout);
+}
+
+static void input_done(void) {
+ STOP_TIMER(clear_pam_wrong_timeout);
pam_state = STATE_PAM_VERIFY;
redraw_screen();
fprintf(stderr, "Authentication failure\n");
pam_state = STATE_PAM_WRONG;
+ failed_attempts += 1;
clear_input();
redraw_screen();
/* Clear this state after 2 seconds (unless the user enters another
* password during that time). */
ev_now_update(main_loop);
- if ((clear_pam_wrong_timeout = calloc(sizeof(struct ev_timer), 1))) {
- ev_timer_init(clear_pam_wrong_timeout, clear_pam_wrong, 2.0, 0.);
- ev_timer_start(main_loop, clear_pam_wrong_timeout);
- }
+ START_TIMER(clear_pam_wrong_timeout, TSTAMP_N_SECS(2), clear_pam_wrong);
/* Cancel the clear_indicator_timeout, it would hide the unlock indicator
* too early. */
}
}
-/*
- * Called when the user releases a key. We need to leave the Mode_switch
- * state when the user releases the Mode_switch key.
- *
- */
-static void handle_key_release(xcb_key_release_event_t *event) {
- xkb_state_update_key(xkb_state, event->detail, XKB_KEY_UP);
-}
-
static void redraw_timeout(EV_P_ ev_timer *w, int revents) {
redraw_screen();
+ STOP_TIMER(w);
+}
+
+static bool skip_without_validation(void) {
+ if (input_position != 0)
+ return false;
- ev_timer_stop(main_loop, w);
- free(w);
+ if (skip_repeated_empty_password || ignore_empty_password)
+ return true;
+
+ return false;
}
/*
ksym = xkb_state_key_get_one_sym(xkb_state, event->detail);
ctrl = xkb_state_mod_name_is_active(xkb_state, "Control", XKB_STATE_MODS_DEPRESSED);
- xkb_state_update_key(xkb_state, event->detail, XKB_KEY_DOWN);
/* The buffer will be null-terminated, so n >= 2 for 1 actual character. */
memset(buffer, '\0', sizeof(buffer));
case XKB_KEY_Return:
case XKB_KEY_KP_Enter:
case XKB_KEY_XF86ScreenSaver:
- if (ignore_empty_password && input_position == 0) {
+ if (skip_without_validation()) {
clear_input();
return;
}
unlock_state = STATE_KEY_PRESSED;
redraw_screen();
input_done();
+ skip_repeated_empty_password = true;
return;
+ default:
+ skip_repeated_empty_password = false;
+ }
+ switch (ksym) {
case XKB_KEY_u:
if (ctrl) {
DEBUG("C-u pressed\n");
redraw_screen();
unlock_state = STATE_KEY_PRESSED;
- struct ev_timer *timeout = calloc(sizeof(struct ev_timer), 1);
- if (timeout) {
- ev_timer_init(timeout, redraw_timeout, 0.25, 0.);
- ev_timer_start(main_loop, timeout);
- }
-
+ struct ev_timer *timeout = NULL;
+ START_TIMER(timeout, TSTAMP_N_SECS(0.25), redraw_timeout);
STOP_TIMER(clear_indicator_timeout);
+ START_TIMER(discard_passwd_timeout, TSTAMP_N_MINS(3), discard_passwd_cb);
}
/*
/*
* Called when the keyboard mapping changes. We update our symbols.
*
+ * We ignore errors — if the new keymap cannot be loaded it’s better if the
+ * screen stays locked and the user intervenes by using killall i3lock.
+ *
*/
-static void handle_mapping_notify(xcb_mapping_notify_event_t *event) {
- /* We ignore errors — if the new keymap cannot be loaded it’s better if the
- * screen stays locked and the user intervenes by using killall i3lock. */
- (void)load_keymap();
+static void process_xkb_event(xcb_generic_event_t *gevent) {
+ union xkb_event {
+ struct {
+ uint8_t response_type;
+ uint8_t xkbType;
+ uint16_t sequence;
+ xcb_timestamp_t time;
+ uint8_t deviceID;
+ } any;
+ xcb_xkb_new_keyboard_notify_event_t new_keyboard_notify;
+ xcb_xkb_map_notify_event_t map_notify;
+ xcb_xkb_state_notify_event_t state_notify;
+ } *event = (union xkb_event*)gevent;
+
+ DEBUG("process_xkb_event for device %d\n", event->any.deviceID);
+
+ if (event->any.deviceID != xkb_x11_get_core_keyboard_device_id(conn))
+ return;
+
+ /*
+ * XkbNewKkdNotify and XkbMapNotify together capture all sorts of keymap
+ * updates (e.g. xmodmap, xkbcomp, setxkbmap), with minimal redundent
+ * recompilations.
+ */
+ switch (event->any.xkbType) {
+ case XCB_XKB_NEW_KEYBOARD_NOTIFY:
+ if (event->new_keyboard_notify.changed & XCB_XKB_NKN_DETAIL_KEYCODES)
+ (void)load_keymap();
+ break;
+
+ case XCB_XKB_MAP_NOTIFY:
+ (void)load_keymap();
+ break;
+
+ case XCB_XKB_STATE_NOTIFY:
+ xkb_state_update_mask(xkb_state,
+ event->state_notify.baseMods,
+ event->state_notify.latchedMods,
+ event->state_notify.lockedMods,
+ event->state_notify.baseGroup,
+ event->state_notify.latchedGroup,
+ event->state_notify.lockedGroup);
+ break;
+ }
}
/*
static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
xcb_generic_event_t *event;
+ if (xcb_connection_has_error(conn))
+ errx(EXIT_FAILURE, "X11 connection broke, did your server terminate?\n");
+
while ((event = xcb_poll_for_event(conn)) != NULL) {
if (event->response_type == 0) {
xcb_generic_error_t *error = (xcb_generic_error_t*)event;
/* Strip off the highest bit (set if the event is generated) */
int type = (event->response_type & 0x7F);
+
switch (type) {
case XCB_KEY_PRESS:
handle_key_press((xcb_key_press_event_t*)event);
break;
case XCB_KEY_RELEASE:
- handle_key_release((xcb_key_release_event_t*)event);
-
/* If this was the backspace or escape key we are back at an
- * empty input, so turn off the screen if DPMS is enabled */
- if (input_position == 0)
- turn_monitors_off();
-
+ * empty input, so turn off the screen if DPMS is enabled, but
+ * only do that after some timeout: maybe user mistyped and
+ * will type again right away */
+ START_TIMER(dpms_timeout, TSTAMP_N_SECS(inactivity_timeout),
+ turn_off_monitors_cb);
break;
case XCB_VISIBILITY_NOTIFY:
}
break;
- case XCB_MAPPING_NOTIFY:
- handle_mapping_notify((xcb_mapping_notify_event_t*)event);
- break;
-
case XCB_CONFIGURE_NOTIFY:
handle_screen_resize();
break;
+
+ default:
+ if (type == xkb_base_event)
+ process_xkb_event(event);
}
free(event);
{"image", required_argument, NULL, 'i'},
{"tiling", no_argument, NULL, 't'},
{"ignore-empty-password", no_argument, NULL, 'e'},
+ {"inactivity-timeout", required_argument, NULL, 'I'},
+ {"show-failed-attempts", no_argument, NULL, 'f'},
{NULL, no_argument, NULL, 0}
};
if ((username = getenv("USER")) == NULL)
- errx(1, "USER environment variable not set, please set it.\n");
+ errx(EXIT_FAILURE, "USER environment variable not set, please set it.\n");
- while ((o = getopt_long(argc, argv, "hvnbdc:p:ui:te", longopts, &optind)) != -1) {
+ char *optstring = "hvnbdc:p:ui:teI:f";
+ while ((o = getopt_long(argc, argv, optstring, longopts, &optind)) != -1) {
switch (o) {
case 'v':
errx(EXIT_SUCCESS, "version " VERSION " © 2010-2012 Michael Stapelberg");
case 'd':
dpms = true;
break;
+ case 'I': {
+ int time = 0;
+ if (sscanf(optarg, "%d", &time) != 1 || time < 0)
+ errx(EXIT_FAILURE, "invalid timeout, it must be a positive integer\n");
+ inactivity_timeout = time;
+ break;
+ }
case 'c': {
char *arg = optarg;
arg++;
if (strlen(arg) != 6 || sscanf(arg, "%06[0-9a-fA-F]", color) != 1)
- errx(1, "color is invalid, it must be given in 3-byte hexadecimal format: rrggbb\n");
+ errx(EXIT_FAILURE, "color is invalid, it must be given in 3-byte hexadecimal format: rrggbb\n");
break;
}
} else if (!strcmp(optarg, "default")) {
curs_choice = CURS_DEFAULT;
} else {
- errx(1, "i3lock: Invalid pointer type given. Expected one of \"win\" or \"default\".\n");
+ errx(EXIT_FAILURE, "i3lock: Invalid pointer type given. Expected one of \"win\" or \"default\".\n");
}
break;
case 'e':
if (strcmp(longopts[optind].name, "debug") == 0)
debug_mode = true;
break;
+ case 'f':
+ show_failed_attempts = true;
+ break;
default:
- errx(1, "Syntax: i3lock [-v] [-n] [-b] [-d] [-c color] [-u] [-p win|default]"
- " [-i image.png] [-t] [-e]"
+ errx(EXIT_FAILURE, "Syntax: i3lock [-v] [-n] [-b] [-d] [-c color] [-u] [-p win|default]"
+ " [-i image.png] [-t] [-e] [-I] [-f]"
);
}
}
err(EXIT_FAILURE, "Could not lock page in memory, check RLIMIT_MEMLOCK");
#endif
- /* Initialize connection to X11 */
- if ((display = XOpenDisplay(NULL)) == NULL)
- errx(EXIT_FAILURE, "Could not connect to X11, maybe you need to set DISPLAY?");
- XSetEventQueueOwner(display, XCBOwnsEventQueue);
- conn = XGetXCBConnection(display);
-
/* Double checking that connection is good and operatable with xcb */
- if (xcb_connection_has_error(conn))
+ int screennr;
+ if ((conn = xcb_connect(NULL, &screennr)) == NULL ||
+ xcb_connection_has_error(conn))
errx(EXIT_FAILURE, "Could not connect to X11, maybe you need to set DISPLAY?");
+ if (xkb_x11_setup_xkb_extension(conn,
+ XKB_X11_MIN_MAJOR_XKB_VERSION,
+ XKB_X11_MIN_MINOR_XKB_VERSION,
+ 0,
+ NULL,
+ NULL,
+ &xkb_base_event,
+ &xkb_base_error) != 1)
+ errx(EXIT_FAILURE, "Could not setup XKB extension.");
+
+ static const xcb_xkb_map_part_t required_map_parts =
+ (XCB_XKB_MAP_PART_KEY_TYPES |
+ XCB_XKB_MAP_PART_KEY_SYMS |
+ XCB_XKB_MAP_PART_MODIFIER_MAP |
+ XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS |
+ XCB_XKB_MAP_PART_KEY_ACTIONS |
+ XCB_XKB_MAP_PART_VIRTUAL_MODS |
+ XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP);
+
+ static const xcb_xkb_event_type_t required_events =
+ (XCB_XKB_EVENT_TYPE_NEW_KEYBOARD_NOTIFY |
+ XCB_XKB_EVENT_TYPE_MAP_NOTIFY |
+ XCB_XKB_EVENT_TYPE_STATE_NOTIFY);
+
+ xcb_xkb_select_events(
+ conn,
+ xkb_x11_get_core_keyboard_device_id(conn),
+ required_events,
+ 0,
+ required_events,
+ required_map_parts,
+ required_map_parts,
+ 0);
+
/* When we cannot initially load the keymap, we better exit */
if (!load_keymap())
errx(EXIT_FAILURE, "Could not load keymap");
projects / i3 / i3lock / blobdiff