/*
* vim:ts=4:sw=4:expandtab
*
- * © 2010-2013 Michael Stapelberg
+ * © 2010 Michael Stapelberg
*
* See LICENSE for licensing information
*
*/
#include <stdio.h>
#include <stdlib.h>
+#include <pwd.h>
+#include <sys/types.h>
#include <string.h>
#include <unistd.h>
#include <stdbool.h>
#include <stdint.h>
#include <xcb/xcb.h>
-#include <xcb/dpms.h>
+#include <xcb/xkb.h>
#include <err.h>
#include <assert.h>
+#ifdef __OpenBSD__
+#include <bsd_auth.h>
+#else
#include <security/pam_appl.h>
-#include <X11/Xlib-xcb.h>
+#endif
#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-compose.h>
+#include <xkbcommon/xkbcommon-x11.h>
#include <cairo.h>
#include <cairo/cairo-xcb.h>
+#ifdef __OpenBSD__
+#include <strings.h> /* explicit_bzero(3) */
+#endif
+#include <xcb/xcb_aux.h>
+#include <xcb/randr.h>
#include "i3lock.h"
#include "xcb.h"
#include "cursors.h"
#include "unlock_indicator.h"
-#include "xinerama.h"
+#include "randr.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) \
+ timer_obj = stop_timer(timer_obj)
+
+typedef void (*ev_callback_t)(EV_P_ ev_timer *w, int revents);
+static void input_done(void);
-/* We need this for libxkbfile */
-static Display *display;
char color[7] = "ffffff";
uint32_t last_resolution[2];
xcb_window_t win;
static xcb_cursor_t cursor;
+#ifndef __OpenBSD__
static pam_handle_t *pam_handle;
+#endif
int input_position = 0;
/* Holds the password you enter (in UTF-8). */
static char password[512];
static bool beep = false;
bool debug_mode = false;
-static bool dpms = false;
bool unlock_indicator = true;
+char *modifier_string = NULL;
static bool dont_fork = false;
struct ev_loop *main_loop;
-static struct ev_timer *clear_pam_wrong_timeout;
+static struct ev_timer *clear_auth_wrong_timeout;
+static struct ev_timer *clear_indicator_timeout;
+static struct ev_timer *discard_passwd_timeout;
extern unlock_state_t unlock_state;
-extern pam_state_t pam_state;
+extern auth_state_t auth_state;
+int failed_attempts = 0;
+bool show_failed_attempts = false;
+bool retry_verification = false;
static struct xkb_state *xkb_state;
static struct xkb_context *xkb_context;
static struct xkb_keymap *xkb_keymap;
+static struct xkb_compose_table *xkb_compose_table;
+static struct xkb_compose_state *xkb_compose_state;
+static uint8_t xkb_base_event;
+static uint8_t xkb_base_error;
+static int randr_base = -1;
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)
+#define isutf(c) (((c)&0xC0) != 0x80)
/*
* Decrements i to point to the previous unicode glyph
* 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_unref(xkb_state);
+ xkb_state = new_state;
- xkb_state_update_mask(new_state,
- 0, 0, state_rec.locked_mods,
- 0, 0, state_rec.locked_group);
+ return true;
+}
- if (xkb_state != NULL)
- xkb_state_unref(xkb_state);
- xkb_state = new_state;
+/*
+ * Loads the XKB compose table from the given locale.
+ *
+ */
+static bool load_compose_table(const char *locale) {
+ xkb_compose_table_unref(xkb_compose_table);
+
+ if ((xkb_compose_table = xkb_compose_table_new_from_locale(xkb_context, locale, 0)) == NULL) {
+ fprintf(stderr, "[i3lock] xkb_compose_table_new_from_locale failed\n");
+ return false;
+ }
- ret = true;
-out:
- XkbFreeKeyboard(result.xkb, XkbAllComponentsMask, true);
- fclose(temp);
- return ret;
+ struct xkb_compose_state *new_compose_state = xkb_compose_state_new(xkb_compose_table, 0);
+ if (new_compose_state == NULL) {
+ fprintf(stderr, "[i3lock] xkb_compose_state_new failed\n");
+ return false;
+ }
+
+ xkb_compose_state_unref(xkb_compose_state);
+ xkb_compose_state = new_compose_state;
+
+ return true;
}
/*
*
*/
static void clear_password_memory(void) {
+#ifdef __OpenBSD__
+ /* Use explicit_bzero(3) which was explicitly designed not to be
+ * optimized out by the compiler. */
+ explicit_bzero(password, strlen(password));
+#else
/* A volatile pointer to the password buffer to prevent the compiler from
* optimizing this out. */
volatile char *vpassword = password;
* compiler from optimizing the calls away, since the value of 'beep'
* is not known at compile-time. */
vpassword[c] = c + (int)beep;
+#endif
+}
+
+ev_timer *start_timer(ev_timer *timer_obj, ev_tstamp timeout, ev_callback_t callback) {
+ if (timer_obj) {
+ ev_timer_stop(main_loop, timer_obj);
+ ev_timer_set(timer_obj, timeout, 0.);
+ ev_timer_start(main_loop, timer_obj);
+ } else {
+ /* When there is no memory, we just don’t have a timeout. We cannot
+ * exit() here, since that would effectively unlock the screen. */
+ timer_obj = calloc(sizeof(struct ev_timer), 1);
+ if (timer_obj) {
+ ev_timer_init(timer_obj, callback, timeout, 0.);
+ ev_timer_start(main_loop, timer_obj);
+ }
+ }
+ return timer_obj;
}
+ev_timer *stop_timer(ev_timer *timer_obj) {
+ if (timer_obj) {
+ ev_timer_stop(main_loop, timer_obj);
+ free(timer_obj);
+ }
+ return NULL;
+}
/*
- * Resets pam_state to STATE_PAM_IDLE 2 seconds after an unsuccesful
+ * Neccessary calls after ending input via enter or others
+ *
+ */
+static void finish_input(void) {
+ password[input_position] = '\0';
+ unlock_state = STATE_KEY_PRESSED;
+ redraw_screen();
+ input_done();
+}
+
+/*
+ * Resets auth_state to STATE_AUTH_IDLE 2 seconds after an unsuccessful
* authentication event.
*
*/
-static void clear_pam_wrong(EV_P_ ev_timer *w, int revents) {
- DEBUG("clearing pam wrong\n");
- pam_state = STATE_PAM_IDLE;
- unlock_state = STATE_STARTED;
+static void clear_auth_wrong(EV_P_ ev_timer *w, int revents) {
+ DEBUG("clearing auth wrong\n");
+ auth_state = STATE_AUTH_IDLE;
redraw_screen();
+ /* Clear modifier string. */
+ if (modifier_string != NULL) {
+ free(modifier_string);
+ modifier_string = NULL;
+ }
+
/* 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_auth_wrong_timeout);
+
+ /* retry with input done during auth verification */
+ if (retry_verification) {
+ retry_verification = false;
+ finish_input();
+ }
+}
+
+static void clear_indicator_cb(EV_P_ ev_timer *w, int revents) {
+ clear_indicator();
+ STOP_TIMER(clear_indicator_timeout);
}
static void clear_input(void) {
input_position = 0;
clear_password_memory();
password[input_position] = '\0';
+}
- /* Hide the unlock indicator after a bit if the password buffer is
- * empty. */
- start_clear_indicator_timeout();
- unlock_state = STATE_BACKSPACE_ACTIVE;
- redraw_screen();
- unlock_state = STATE_KEY_PRESSED;
+static void discard_passwd_cb(EV_P_ ev_timer *w, int revents) {
+ clear_input();
+ STOP_TIMER(discard_passwd_timeout);
}
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;
- }
-
- pam_state = STATE_PAM_VERIFY;
+ STOP_TIMER(clear_auth_wrong_timeout);
+ auth_state = STATE_AUTH_VERIFY;
+ unlock_state = STATE_STARTED;
redraw_screen();
+#ifdef __OpenBSD__
+ struct passwd *pw;
+
+ if (!(pw = getpwuid(getuid())))
+ errx(1, "unknown uid %u.", getuid());
+
+ if (auth_userokay(pw->pw_name, NULL, NULL, password) != 0) {
+ DEBUG("successfully authenticated\n");
+ clear_password_memory();
+
+ ev_break(EV_DEFAULT, EVBREAK_ALL);
+ return;
+ }
+#else
if (pam_authenticate(pam_handle, 0) == PAM_SUCCESS) {
DEBUG("successfully authenticated\n");
clear_password_memory();
- /* Turn the screen on, as it may have been turned off
- * on release of the 'enter' key. */
- if (dpms)
- dpms_set_mode(conn, XCB_DPMS_DPMS_MODE_ON);
- exit(0);
+
+ /* PAM credentials should be refreshed, this will for example update any kerberos tickets.
+ * Related to credentials pam_end() needs to be called to cleanup any temporary
+ * credentials like kerberos /tmp/krb5cc_pam_* files which may of been left behind if the
+ * refresh of the credentials failed. */
+ pam_setcred(pam_handle, PAM_REFRESH_CRED);
+ pam_end(pam_handle, PAM_SUCCESS);
+
+ ev_break(EV_DEFAULT, EVBREAK_ALL);
+ return;
}
+#endif
if (debug_mode)
fprintf(stderr, "Authentication failure\n");
- pam_state = STATE_PAM_WRONG;
+ /* Get state of Caps and Num lock modifiers, to be displayed in
+ * STATE_AUTH_WRONG state */
+ xkb_mod_index_t idx, num_mods;
+ const char *mod_name;
+
+ num_mods = xkb_keymap_num_mods(xkb_keymap);
+
+ for (idx = 0; idx < num_mods; idx++) {
+ if (!xkb_state_mod_index_is_active(xkb_state, idx, XKB_STATE_MODS_EFFECTIVE))
+ continue;
+
+ mod_name = xkb_keymap_mod_get_name(xkb_keymap, idx);
+ if (mod_name == NULL)
+ continue;
+
+ /* Replace certain xkb names with nicer, human-readable ones. */
+ if (strcmp(mod_name, XKB_MOD_NAME_CAPS) == 0)
+ mod_name = "Caps Lock";
+ else if (strcmp(mod_name, XKB_MOD_NAME_ALT) == 0)
+ mod_name = "Alt";
+ else if (strcmp(mod_name, XKB_MOD_NAME_NUM) == 0)
+ mod_name = "Num Lock";
+ else if (strcmp(mod_name, XKB_MOD_NAME_LOGO) == 0)
+ mod_name = "Win";
+
+ char *tmp;
+ if (modifier_string == NULL) {
+ if (asprintf(&tmp, "%s", mod_name) != -1)
+ modifier_string = tmp;
+ } else if (asprintf(&tmp, "%s, %s", modifier_string, mod_name) != -1) {
+ free(modifier_string);
+ modifier_string = tmp;
+ }
+ }
+
+ auth_state = STATE_AUTH_WRONG;
+ failed_attempts += 1;
clear_input();
- redraw_screen();
+ if (unlock_indicator)
+ 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_auth_wrong_timeout, TSTAMP_N_SECS(2), clear_auth_wrong);
/* Cancel the clear_indicator_timeout, it would hide the unlock indicator
* too early. */
- stop_clear_indicator_timeout();
+ STOP_TIMER(clear_indicator_timeout);
/* beep on authentication failure, if enabled */
if (beep) {
}
}
-/*
- * 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;
}
/*
char buffer[128];
int n;
bool ctrl;
+ bool composed = 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);
+ ctrl = xkb_state_mod_name_is_active(xkb_state, XKB_MOD_NAME_CTRL, XKB_STATE_MODS_DEPRESSED);
/* The buffer will be null-terminated, so n >= 2 for 1 actual character. */
memset(buffer, '\0', sizeof(buffer));
- n = xkb_keysym_to_utf8(ksym, buffer, sizeof(buffer));
- switch (ksym) {
- case XKB_KEY_Return:
- case XKB_KEY_KP_Enter:
- case XKB_KEY_XF86ScreenSaver:
- if (ignore_empty_password && input_position == 0) {
- clear_input();
- return;
+ if (xkb_compose_state && xkb_compose_state_feed(xkb_compose_state, ksym) == XKB_COMPOSE_FEED_ACCEPTED) {
+ switch (xkb_compose_state_get_status(xkb_compose_state)) {
+ case XKB_COMPOSE_NOTHING:
+ break;
+ case XKB_COMPOSE_COMPOSING:
+ return;
+ case XKB_COMPOSE_COMPOSED:
+ /* xkb_compose_state_get_utf8 doesn't include the terminating byte in the return value
+ * as xkb_keysym_to_utf8 does. Adding one makes the variable n consistent. */
+ n = xkb_compose_state_get_utf8(xkb_compose_state, buffer, sizeof(buffer)) + 1;
+ ksym = xkb_compose_state_get_one_sym(xkb_compose_state);
+ composed = true;
+ break;
+ case XKB_COMPOSE_CANCELLED:
+ xkb_compose_state_reset(xkb_compose_state);
+ return;
}
- password[input_position] = '\0';
- unlock_state = STATE_KEY_PRESSED;
- redraw_screen();
- input_done();
- return;
+ }
+
+ if (!composed) {
+ n = xkb_keysym_to_utf8(ksym, buffer, sizeof(buffer));
+ }
+
+ switch (ksym) {
+ case XKB_KEY_j:
+ case XKB_KEY_m:
+ case XKB_KEY_Return:
+ case XKB_KEY_KP_Enter:
+ case XKB_KEY_XF86ScreenSaver:
+ if ((ksym == XKB_KEY_j || ksym == XKB_KEY_m) && !ctrl)
+ break;
+
+ if (auth_state == STATE_AUTH_WRONG) {
+ retry_verification = true;
+ return;
+ }
- case XKB_KEY_u:
- if (ctrl) {
- DEBUG("C-u pressed\n");
- clear_input();
+ if (skip_without_validation()) {
+ clear_input();
+ return;
+ }
+ finish_input();
+ skip_repeated_empty_password = true;
return;
- }
- break;
+ default:
+ skip_repeated_empty_password = false;
+ }
- case XKB_KEY_Escape:
- clear_input();
- return;
+ switch (ksym) {
+ case XKB_KEY_u:
+ case XKB_KEY_Escape:
+ if ((ksym == XKB_KEY_u && ctrl) ||
+ ksym == XKB_KEY_Escape) {
+ DEBUG("C-u pressed\n");
+ clear_input();
+ /* Also hide the unlock indicator */
+ if (unlock_indicator)
+ clear_indicator();
+ return;
+ }
+ break;
- case XKB_KEY_BackSpace:
- if (input_position == 0)
+ case XKB_KEY_Delete:
+ case XKB_KEY_KP_Delete:
+ /* Deleting forward doesn’t make sense, as i3lock doesn’t allow you
+ * to move the cursor when entering a password. We need to eat this
+ * key press so that it won’t be treated as part of the password,
+ * see issue #50. */
return;
- /* decrement input_position to point to the previous glyph */
- u8_dec(password, &input_position);
- password[input_position] = '\0';
+ case XKB_KEY_h:
+ case XKB_KEY_BackSpace:
+ if (ksym == XKB_KEY_h && !ctrl)
+ break;
- /* Hide the unlock indicator after a bit if the password buffer is
- * empty. */
- start_clear_indicator_timeout();
- unlock_state = STATE_BACKSPACE_ACTIVE;
- redraw_screen();
- unlock_state = STATE_KEY_PRESSED;
- return;
+ if (input_position == 0)
+ return;
+
+ /* decrement input_position to point to the previous glyph */
+ u8_dec(password, &input_position);
+ password[input_position] = '\0';
+
+ /* Hide the unlock indicator after a bit if the password buffer is
+ * empty. */
+ START_TIMER(clear_indicator_timeout, 1.0, clear_indicator_cb);
+ unlock_state = STATE_BACKSPACE_ACTIVE;
+ redraw_screen();
+ unlock_state = STATE_KEY_PRESSED;
+ return;
}
if ((input_position + 8) >= sizeof(password))
return;
/* store it in the password array as UTF-8 */
- memcpy(password+input_position, buffer, n-1);
- input_position += n-1;
+ memcpy(password + input_position, buffer, n - 1);
+ input_position += n - 1;
DEBUG("current password = %.*s\n", input_position, password);
- unlock_state = STATE_KEY_ACTIVE;
- redraw_screen();
- unlock_state = STATE_KEY_PRESSED;
+ if (unlock_indicator) {
+ unlock_state = STATE_KEY_ACTIVE;
+ 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);
}
- stop_clear_indicator_timeout();
+ START_TIMER(discard_passwd_timeout, TSTAMP_N_MINS(3), discard_passwd_cb);
}
/*
*
*/
static void handle_visibility_notify(xcb_connection_t *conn,
- xcb_visibility_notify_event_t *event) {
+ xcb_visibility_notify_event_t *event) {
if (event->state != XCB_VISIBILITY_UNOBSCURED) {
- uint32_t values[] = { XCB_STACK_MODE_ABOVE };
+ uint32_t values[] = {XCB_STACK_MODE_ABOVE};
xcb_configure_window(conn, event->window, XCB_CONFIG_WINDOW_STACK_MODE, values);
xcb_flush(conn);
}
/*
* 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;
+ }
}
/*
xcb_configure_window(conn, win, mask, last_resolution);
xcb_flush(conn);
- xinerama_query_screens();
+ randr_query(screen->root);
redraw_screen();
}
+#ifndef __OpenBSD__
/*
* Callback function for PAM. We only react on password request callbacks.
*
*/
static int conv_callback(int num_msg, const struct pam_message **msg,
- struct pam_response **resp, void *appdata_ptr)
-{
+ struct pam_response **resp, void *appdata_ptr) {
if (num_msg == 0)
return 1;
return 0;
}
+#endif
/*
* This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb.
xcb_flush(conn);
}
+/*
+ * Try closing logind sleep lock fd passed over from xss-lock, in case we're
+ * being run from there.
+ *
+ */
+static void maybe_close_sleep_lock_fd(void) {
+ const char *sleep_lock_fd = getenv("XSS_SLEEP_LOCK_FD");
+ char *endptr;
+ if (sleep_lock_fd && *sleep_lock_fd != 0) {
+ long int fd = strtol(sleep_lock_fd, &endptr, 10);
+ if (*endptr == 0) {
+ close(fd);
+ }
+ }
+}
+
/*
* Instead of polling the X connection socket we leave this to
* xcb_poll_for_event() which knows better than we can ever know.
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;
+ xcb_generic_error_t *error = (xcb_generic_error_t *)event;
if (debug_mode)
fprintf(stderr, "X11 Error received! sequence 0x%x, error_code = %d\n",
error->sequence, error->error_code);
/* 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 (dpms && input_position == 0)
- dpms_set_mode(conn, XCB_DPMS_DPMS_MODE_OFF);
-
+ handle_key_press((xcb_key_press_event_t *)event);
break;
case XCB_VISIBILITY_NOTIFY:
- handle_visibility_notify(conn, (xcb_visibility_notify_event_t*)event);
+ handle_visibility_notify(conn, (xcb_visibility_notify_event_t *)event);
break;
case XCB_MAP_NOTIFY:
+ maybe_close_sleep_lock_fd();
if (!dont_fork) {
/* After the first MapNotify, we never fork again. We don’t
* expect to get another MapNotify, but better be sure… */
}
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);
+ }
+ if (randr_base > -1 &&
+ type == randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY) {
+ randr_query(screen->root);
+ handle_screen_resize();
+ }
}
free(event);
/*
* This function is called from a fork()ed child and will raise the i3lock
* window when the window is obscured, even when the main i3lock process is
- * blocked due to PAM.
+ * blocked due to the authentication backend.
*
*/
static void raise_loop(xcb_window_t window) {
/* We need to know about the window being obscured or getting destroyed. */
xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK,
- (uint32_t[]){
- XCB_EVENT_MASK_VISIBILITY_CHANGE |
- XCB_EVENT_MASK_STRUCTURE_NOTIFY
- });
+ (uint32_t[]){
+ XCB_EVENT_MASK_VISIBILITY_CHANGE |
+ XCB_EVENT_MASK_STRUCTURE_NOTIFY});
xcb_flush(conn);
DEBUG("Watching window 0x%08x\n", window);
while ((event = xcb_wait_for_event(conn)) != NULL) {
if (event->response_type == 0) {
- xcb_generic_error_t *error = (xcb_generic_error_t*)event;
+ xcb_generic_error_t *error = (xcb_generic_error_t *)event;
DEBUG("X11 Error received! sequence 0x%x, error_code = %d\n",
- error->sequence, error->error_code);
+ error->sequence, error->error_code);
free(event);
continue;
}
DEBUG("Read event of type %d\n", type);
switch (type) {
case XCB_VISIBILITY_NOTIFY:
- handle_visibility_notify(conn, (xcb_visibility_notify_event_t*)event);
+ handle_visibility_notify(conn, (xcb_visibility_notify_event_t *)event);
break;
case XCB_UNMAP_NOTIFY:
- DEBUG("UnmapNotify for 0x%08x\n", (((xcb_unmap_notify_event_t*)event)->window));
- if (((xcb_unmap_notify_event_t*)event)->window == window)
+ DEBUG("UnmapNotify for 0x%08x\n", (((xcb_unmap_notify_event_t *)event)->window));
+ if (((xcb_unmap_notify_event_t *)event)->window == window)
exit(EXIT_SUCCESS);
break;
case XCB_DESTROY_NOTIFY:
- DEBUG("DestroyNotify for 0x%08x\n", (((xcb_destroy_notify_event_t*)event)->window));
- if (((xcb_destroy_notify_event_t*)event)->window == window)
+ DEBUG("DestroyNotify for 0x%08x\n", (((xcb_destroy_notify_event_t *)event)->window));
+ if (((xcb_destroy_notify_event_t *)event)->window == window)
exit(EXIT_SUCCESS);
break;
default:
}
int main(int argc, char *argv[]) {
+ struct passwd *pw;
char *username;
char *image_path = NULL;
+#ifndef __OpenBSD__
int ret;
struct pam_conv conv = {conv_callback, NULL};
+#endif
int curs_choice = CURS_NONE;
int o;
- int optind = 0;
+ int longoptind = 0;
struct option longopts[] = {
{"version", no_argument, NULL, 'v'},
{"nofork", no_argument, NULL, 'n'},
{"beep", no_argument, NULL, 'b'},
{"dpms", no_argument, NULL, 'd'},
{"color", required_argument, NULL, 'c'},
- {"pointer", required_argument, NULL , 'p'},
+ {"pointer", required_argument, NULL, 'p'},
{"debug", no_argument, NULL, 0},
{"help", no_argument, NULL, 'h'},
{"no-unlock-indicator", no_argument, NULL, 'u'},
{"image", required_argument, NULL, 'i'},
{"tiling", no_argument, NULL, 't'},
{"ignore-empty-password", no_argument, NULL, 'e'},
- {NULL, no_argument, NULL, 0}
- };
+ {"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");
+ if ((pw = getpwuid(getuid())) == NULL)
+ err(EXIT_FAILURE, "getpwuid() failed");
+ if ((username = pw->pw_name) == NULL)
+ errx(EXIT_FAILURE, "pw->pw_name is NULL.\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, &longoptind)) != -1) {
switch (o) {
- case 'v':
- errx(EXIT_SUCCESS, "version " VERSION " © 2010-2012 Michael Stapelberg");
- case 'n':
- dont_fork = true;
- break;
- case 'b':
- beep = true;
- break;
- case 'd':
- dpms = true;
- break;
- case 'c': {
- char *arg = optarg;
+ case 'v':
+ errx(EXIT_SUCCESS, "version " VERSION " © 2010 Michael Stapelberg");
+ case 'n':
+ dont_fork = true;
+ break;
+ case 'b':
+ beep = true;
+ break;
+ case 'd':
+ fprintf(stderr, "DPMS support has been removed from i3lock. Please see the manpage i3lock(1).\n");
+ break;
+ case 'I': {
+ fprintf(stderr, "Inactivity timeout only makes sense with DPMS, which was removed. Please see the manpage i3lock(1).\n");
+ break;
+ }
+ case 'c': {
+ char *arg = optarg;
- /* Skip # if present */
- if (arg[0] == '#')
- arg++;
+ /* Skip # if present */
+ if (arg[0] == '#')
+ 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");
+ if (strlen(arg) != 6 || sscanf(arg, "%06[0-9a-fA-F]", color) != 1)
+ errx(EXIT_FAILURE, "color is invalid, it must be given in 3-byte hexadecimal format: rrggbb\n");
- break;
- }
- case 'u':
- unlock_indicator = false;
- break;
- case 'i':
- image_path = strdup(optarg);
- break;
- case 't':
- tile = true;
- break;
- case 'p':
- if (!strcmp(optarg, "win")) {
- curs_choice = CURS_WIN;
- } else if (!strcmp(optarg, "default")) {
- curs_choice = CURS_DEFAULT;
- } else {
- errx(1, "i3lock: Invalid pointer type given. Expected one of \"win\" or \"default\".\n");
+ break;
}
- break;
- case 'e':
- ignore_empty_password = true;
- break;
- case 0:
- if (strcmp(longopts[optind].name, "debug") == 0)
- debug_mode = true;
- break;
- default:
- errx(1, "Syntax: i3lock [-v] [-n] [-b] [-d] [-c color] [-u] [-p win|default]"
- " [-i image.png] [-t] [-e]"
- );
+ case 'u':
+ unlock_indicator = false;
+ break;
+ case 'i':
+ image_path = strdup(optarg);
+ break;
+ case 't':
+ tile = true;
+ break;
+ case 'p':
+ if (!strcmp(optarg, "win")) {
+ curs_choice = CURS_WIN;
+ } else if (!strcmp(optarg, "default")) {
+ curs_choice = CURS_DEFAULT;
+ } else {
+ errx(EXIT_FAILURE, "i3lock: Invalid pointer type given. Expected one of \"win\" or \"default\".\n");
+ }
+ break;
+ case 'e':
+ ignore_empty_password = true;
+ break;
+ case 0:
+ if (strcmp(longopts[longoptind].name, "debug") == 0)
+ debug_mode = true;
+ break;
+ case 'f':
+ show_failed_attempts = true;
+ break;
+ default:
+ errx(EXIT_FAILURE, "Syntax: i3lock [-v] [-n] [-b] [-d] [-c color] [-u] [-p win|default]"
+ " [-i image.png] [-t] [-e] [-I timeout] [-f]");
}
}
* the unlock indicator upon keypresses. */
srand(time(NULL));
+#ifndef __OpenBSD__
/* Initialize PAM */
- ret = pam_start("i3lock", username, &conv, &pam_handle);
- if (ret != PAM_SUCCESS)
+ if ((ret = pam_start("i3lock", username, &conv, &pam_handle)) != PAM_SUCCESS)
errx(EXIT_FAILURE, "PAM: %s", pam_strerror(pam_handle, ret));
-/* Using mlock() as non-super-user seems only possible in Linux. Users of other
- * operating systems should use encrypted swap/no swap (or remove the ifdef and
- * run i3lock as super-user). */
+ if ((ret = pam_set_item(pam_handle, PAM_TTY, getenv("DISPLAY"))) != PAM_SUCCESS)
+ errx(EXIT_FAILURE, "PAM: %s", pam_strerror(pam_handle, ret));
+#endif
+
+/* Using mlock() as non-super-user seems only possible in Linux.
+ * Users of other operating systems should use encrypted swap/no swap
+ * (or remove the ifdef and run i3lock as super-user).
+ * Alas, swap is encrypted by default on OpenBSD so swapping out
+ * is not necessarily an issue. */
#if defined(__linux__)
/* Lock the area where we store the password in memory, we don’t want it to
* be swapped to disk. Since Linux 2.6.9, this does not require any
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");
- xinerama_init();
- xinerama_query_screens();
-
- /* if DPMS is enabled, check if the X server really supports it */
- if (dpms) {
- xcb_dpms_capable_cookie_t dpmsc = xcb_dpms_capable(conn);
- xcb_dpms_capable_reply_t *dpmsr;
- if ((dpmsr = xcb_dpms_capable_reply(conn, dpmsc, NULL))) {
- if (!dpmsr->capable) {
- if (debug_mode)
- fprintf(stderr, "Disabling DPMS, X server not DPMS capable\n");
- dpms = false;
- }
- free(dpmsr);
- }
+ const char *locale = getenv("LC_ALL");
+ if (!locale || !*locale)
+ locale = getenv("LC_CTYPE");
+ if (!locale || !*locale)
+ locale = getenv("LANG");
+ if (!locale || !*locale) {
+ if (debug_mode)
+ fprintf(stderr, "Can't detect your locale, fallback to C\n");
+ locale = "C";
}
+ load_compose_table(locale);
+
screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
+ randr_init(&randr_base, screen->root);
+ randr_query(screen->root);
+
last_resolution[0] = screen->width_in_pixels;
last_resolution[1] = screen->height_in_pixels;
xcb_change_window_attributes(conn, screen->root, XCB_CW_EVENT_MASK,
- (uint32_t[]){ XCB_EVENT_MASK_STRUCTURE_NOTIFY });
+ (uint32_t[]){XCB_EVENT_MASK_STRUCTURE_NOTIFY});
if (image_path) {
/* Create a pixmap to render on, fill it with the background color */
image_path, cairo_status_to_string(cairo_surface_status(img)));
img = NULL;
}
+ free(image_path);
}
/* Pixmap on which the image is rendered to (if any) */
xcb_pixmap_t bg_pixmap = draw_image(last_resolution);
- /* open the fullscreen window, already with the correct pixmap in place */
+ xcb_window_t stolen_focus = find_focused_window(conn, screen->root);
+
+ /* Open the fullscreen window, already with the correct pixmap in place */
win = open_fullscreen_window(conn, screen, color, bg_pixmap);
xcb_free_pixmap(conn, bg_pixmap);
+ cursor = create_cursor(conn, screen, win, curs_choice);
+
+ /* Display the "locking…" message while trying to grab the pointer/keyboard. */
+ auth_state = STATE_AUTH_LOCK;
+ if (!grab_pointer_and_keyboard(conn, screen, cursor, 1000)) {
+ DEBUG("stole focus from X11 window 0x%08x\n", stolen_focus);
+
+ /* Set the focus to i3lock, possibly closing context menus which would
+ * otherwise prevent us from grabbing keyboard/pointer.
+ *
+ * We cannot use set_focused_window because _NET_ACTIVE_WINDOW only
+ * works for managed windows, but i3lock uses an unmanaged window
+ * (override_redirect=1). */
+ xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT /* revert_to */, win, XCB_CURRENT_TIME);
+ if (!grab_pointer_and_keyboard(conn, screen, cursor, 9000)) {
+ auth_state = STATE_I3LOCK_LOCK_FAILED;
+ redraw_screen();
+ sleep(1);
+ errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");
+ }
+ }
+
pid_t pid = fork();
/* The pid == -1 case is intentionally ignored here:
* While the child process is useful for preventing other windows from
if (pid == 0) {
/* Child */
close(xcb_get_file_descriptor(conn));
+ maybe_close_sleep_lock_fd();
raise_loop(win);
exit(EXIT_SUCCESS);
}
- cursor = create_cursor(conn, screen, win, curs_choice);
-
- grab_pointer_and_keyboard(conn, screen, cursor);
/* Load the keymap again to sync the current modifier state. Since we first
* loaded the keymap, there might have been changes, but starting from now,
* we should get all key presses/releases due to having grabbed the
* keyboard. */
(void)load_keymap();
- if (dpms)
- dpms_set_mode(conn, XCB_DPMS_DPMS_MODE_OFF);
-
/* Initialize the libev event loop. */
main_loop = EV_DEFAULT;
if (main_loop == NULL)
errx(EXIT_FAILURE, "Could not initialize libev. Bad LIBEV_FLAGS?\n");
+ /* Explicitly call the screen redraw in case "locking…" message was displayed */
+ auth_state = STATE_AUTH_IDLE;
+ redraw_screen();
+
struct ev_io *xcb_watcher = calloc(sizeof(struct ev_io), 1);
struct ev_check *xcb_check = calloc(sizeof(struct ev_check), 1);
struct ev_prepare *xcb_prepare = calloc(sizeof(struct ev_prepare), 1);
* file descriptor becomes readable). */
ev_invoke(main_loop, xcb_check, 0);
ev_loop(main_loop, 0);
+
+ if (stolen_focus == XCB_NONE) {
+ return 0;
+ }
+
+ DEBUG("restoring focus to X11 window 0x%08x\n", stolen_focus);
+ xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
+ xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
+ xcb_destroy_window(conn, win);
+ set_focused_window(conn, screen->root, stolen_focus);
+ xcb_aux_sync(conn);
+
+ return 0;
}