-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <errno.h>
#include <fcntl.h>
-#include <string.h>
#include <sys/ioctl.h>
#include <unistd.h>
-#include <linux/input.h>
#include "sd-messages.h"
#include "alloc-util.h"
+#include "async.h"
#include "fd-util.h"
#include "logind-button.h"
#include "missing_input.h"
#include "string-util.h"
#include "util.h"
-#define CONST_MAX4(a, b, c, d) CONST_MAX(CONST_MAX(a, b), CONST_MAX(c, d))
+#define CONST_MAX5(a, b, c, d, e) CONST_MAX(CONST_MAX(a, b), CONST_MAX(CONST_MAX(c, d), e))
#define ULONG_BITS (sizeof(unsigned long)*8)
+#define LONG_PRESS_DURATION (5 * USEC_PER_SEC)
+
static bool bitset_get(const unsigned long *bits, unsigned i) {
return (bits[i / ULONG_BITS] >> (i % ULONG_BITS)) & 1UL;
}
sd_event_source_unref(b->io_event_source);
sd_event_source_unref(b->check_event_source);
- if (b->fd >= 0)
- /* If the device has been unplugged close() returns
- * ENODEV, let's ignore this, hence we don't use
- * safe_close() */
- (void) close(b->fd);
+ asynchronous_close(b->fd);
free(b->name);
free(b->seat);
}
int button_set_seat(Button *b, const char *sn) {
- char *s;
-
assert(b);
- assert(sn);
-
- s = strdup(sn);
- if (!s)
- return -ENOMEM;
-
- free(b->seat);
- b->seat = s;
- return 0;
+ return free_and_strdup(&b->seat, sn);
}
static void button_lid_switch_handle_action(Manager *manager, bool is_edge) {
* differently */
if (manager_is_docked_or_external_displays(manager))
handle_action = manager->handle_lid_switch_docked;
- else if (manager->handle_lid_switch_ep != _HANDLE_ACTION_INVALID &&
- manager_is_on_external_power())
+ else if (handle_action_valid(manager->handle_lid_switch_ep) && manager_is_on_external_power())
handle_action = manager->handle_lid_switch_ep;
else
handle_action = manager->handle_lid_switch;
}
static int button_recheck(sd_event_source *e, void *userdata) {
- Button *b = userdata;
+ Button *b = ASSERT_PTR(userdata);
- assert(b);
assert(b->lid_closed);
button_lid_switch_handle_action(b->manager, false);
return sd_event_source_set_priority(b->check_event_source, SD_EVENT_PRIORITY_IDLE+1);
}
+static int long_press_of_power_key_handler(sd_event_source *e, uint64_t usec, void *userdata) {
+ Manager *m = ASSERT_PTR(userdata);
+
+ assert(e);
+
+ m->power_key_long_press_event_source = sd_event_source_unref(m->power_key_long_press_event_source);
+
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Power key pressed long."),
+ "MESSAGE_ID=" SD_MESSAGE_POWER_KEY_LONG_PRESS_STR);
+
+ manager_handle_action(m, INHIBIT_HANDLE_POWER_KEY, m->handle_power_key_long_press, m->power_key_ignore_inhibited, true);
+ return 0;
+}
+
+static int long_press_of_reboot_key_handler(sd_event_source *e, uint64_t usec, void *userdata) {
+ Manager *m = ASSERT_PTR(userdata);
+
+ assert(e);
+
+ m->reboot_key_long_press_event_source = sd_event_source_unref(m->reboot_key_long_press_event_source);
+
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Reboot key pressed long."),
+ "MESSAGE_ID=" SD_MESSAGE_REBOOT_KEY_LONG_PRESS_STR);
+
+ manager_handle_action(m, INHIBIT_HANDLE_REBOOT_KEY, m->handle_reboot_key_long_press, m->reboot_key_ignore_inhibited, true);
+ return 0;
+}
+
+static int long_press_of_suspend_key_handler(sd_event_source *e, uint64_t usec, void *userdata) {
+ Manager *m = ASSERT_PTR(userdata);
+
+ assert(e);
+
+ m->suspend_key_long_press_event_source = sd_event_source_unref(m->suspend_key_long_press_event_source);
+
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Suspend key pressed long."),
+ "MESSAGE_ID=" SD_MESSAGE_SUSPEND_KEY_LONG_PRESS_STR);
+
+ manager_handle_action(m, INHIBIT_HANDLE_SUSPEND_KEY, m->handle_suspend_key_long_press, m->suspend_key_ignore_inhibited, true);
+ return 0;
+}
+
+static int long_press_of_hibernate_key_handler(sd_event_source *e, uint64_t usec, void *userdata) {
+ Manager *m = ASSERT_PTR(userdata);
+
+ assert(e);
+
+ m->hibernate_key_long_press_event_source = sd_event_source_unref(m->hibernate_key_long_press_event_source);
+
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Hibernate key pressed long."),
+ "MESSAGE_ID=" SD_MESSAGE_HIBERNATE_KEY_LONG_PRESS_STR);
+
+ manager_handle_action(m, INHIBIT_HANDLE_HIBERNATE_KEY, m->handle_hibernate_key_long_press, m->hibernate_key_ignore_inhibited, true);
+ return 0;
+}
+
+static void start_long_press(Manager *m, sd_event_source **e, sd_event_time_handler_t callback) {
+ int r;
+
+ assert(m);
+ assert(e);
+
+ if (*e)
+ return;
+
+ r = sd_event_add_time_relative(
+ m->event,
+ e,
+ CLOCK_MONOTONIC,
+ LONG_PRESS_DURATION, 0,
+ callback, m);
+ if (r < 0)
+ log_warning_errno(r, "Failed to add long press timer event, ignoring: %m");
+}
+
static int button_dispatch(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
- Button *b = userdata;
+ Button *b = ASSERT_PTR(userdata);
struct input_event ev;
ssize_t l;
assert(s);
assert(fd == b->fd);
- assert(b);
l = read(b->fd, &ev, sizeof(ev));
if (l < 0)
case KEY_POWER:
case KEY_POWER2:
- log_struct(LOG_INFO,
- LOG_MESSAGE("Power key pressed."),
- "MESSAGE_ID=" SD_MESSAGE_POWER_KEY_STR);
+ if (b->manager->handle_power_key_long_press != HANDLE_IGNORE && b->manager->handle_power_key_long_press != b->manager->handle_power_key) {
+ log_debug("Power key pressed. Further action depends on the key press duration.");
+ start_long_press(b->manager, &b->manager->power_key_long_press_event_source, long_press_of_power_key_handler);
+ } else {
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Power key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_POWER_KEY_STR);
+ manager_handle_action(b->manager, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true);
+ }
+ break;
- manager_handle_action(b->manager, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true);
+ /* The kernel naming is a bit confusing here:
+ KEY_RESTART was probably introduced for media playback purposes, but
+ is now being predominantly used to indicate device reboot.
+ */
+
+ case KEY_RESTART:
+ if (b->manager->handle_reboot_key_long_press != HANDLE_IGNORE && b->manager->handle_reboot_key_long_press != b->manager->handle_reboot_key) {
+ log_debug("Reboot key pressed. Further action depends on the key press duration.");
+ start_long_press(b->manager, &b->manager->reboot_key_long_press_event_source, long_press_of_reboot_key_handler);
+ } else {
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Reboot key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_REBOOT_KEY_STR);
+ manager_handle_action(b->manager, INHIBIT_HANDLE_REBOOT_KEY, b->manager->handle_reboot_key, b->manager->reboot_key_ignore_inhibited, true);
+ }
break;
- /* The kernel is a bit confused here:
+ /* The kernel naming is a bit confusing here:
KEY_SLEEP = suspend-to-ram, which everybody else calls "suspend"
KEY_SUSPEND = suspend-to-disk, which everybody else calls "hibernate"
*/
case KEY_SLEEP:
- log_struct(LOG_INFO,
- LOG_MESSAGE("Suspend key pressed."),
- "MESSAGE_ID=" SD_MESSAGE_SUSPEND_KEY_STR);
+ if (b->manager->handle_suspend_key_long_press != HANDLE_IGNORE && b->manager->handle_suspend_key_long_press != b->manager->handle_suspend_key) {
+ log_debug("Suspend key pressed. Further action depends on the key press duration.");
+ start_long_press(b->manager, &b->manager->suspend_key_long_press_event_source, long_press_of_suspend_key_handler);
+ } else {
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Suspend key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_SUSPEND_KEY_STR);
+ manager_handle_action(b->manager, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true);
+ }
+ break;
+
+ case KEY_SUSPEND:
+ if (b->manager->handle_hibernate_key_long_press != HANDLE_IGNORE && b->manager->handle_hibernate_key_long_press != b->manager->handle_hibernate_key) {
+ log_debug("Hibernate key pressed. Further action depends on the key press duration.");
+ start_long_press(b->manager, &b->manager->hibernate_key_long_press_event_source, long_press_of_hibernate_key_handler);
+ } else {
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Hibernate key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_HIBERNATE_KEY_STR);
+ manager_handle_action(b->manager, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true);
+ }
+ break;
+ }
- manager_handle_action(b->manager, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true);
+ } else if (ev.type == EV_KEY && ev.value == 0) {
+
+ switch (ev.code) {
+
+ case KEY_POWER:
+ case KEY_POWER2:
+ if (b->manager->power_key_long_press_event_source) {
+ /* Long press event timer is still pending and key release
+ event happened. This means that key press duration was
+ insufficient to trigger a long press event
+ */
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Power key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_POWER_KEY_STR);
+
+ b->manager->power_key_long_press_event_source = sd_event_source_unref(b->manager->power_key_long_press_event_source);
+
+ manager_handle_action(b->manager, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true);
+ }
break;
+ case KEY_RESTART:
+ if (b->manager->reboot_key_long_press_event_source) {
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Reboot key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_REBOOT_KEY_STR);
+
+ b->manager->reboot_key_long_press_event_source = sd_event_source_unref(b->manager->reboot_key_long_press_event_source);
+
+ manager_handle_action(b->manager, INHIBIT_HANDLE_REBOOT_KEY, b->manager->handle_reboot_key, b->manager->reboot_key_ignore_inhibited, true);
+ }
+ break;
+
+ case KEY_SLEEP:
+ if (b->manager->suspend_key_long_press_event_source) {
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Suspend key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_SUSPEND_KEY_STR);
+
+ b->manager->suspend_key_long_press_event_source = sd_event_source_unref(b->manager->suspend_key_long_press_event_source);
+
+ manager_handle_action(b->manager, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true);
+ }
+ break;
case KEY_SUSPEND:
- log_struct(LOG_INFO,
- LOG_MESSAGE("Hibernate key pressed."),
- "MESSAGE_ID=" SD_MESSAGE_HIBERNATE_KEY_STR);
+ if (b->manager->hibernate_key_long_press_event_source) {
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("Hibernate key pressed short."),
+ "MESSAGE_ID=" SD_MESSAGE_HIBERNATE_KEY_STR);
+
+ b->manager->hibernate_key_long_press_event_source = sd_event_source_unref(b->manager->hibernate_key_long_press_event_source);
- manager_handle_action(b->manager, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true);
+ manager_handle_action(b->manager, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true);
+ }
break;
}
return 0;
}
-static int button_suitable(Button *b) {
+static int button_suitable(int fd) {
unsigned long types[CONST_MAX(EV_KEY, EV_SW)/ULONG_BITS+1];
- assert(b);
- assert(b->fd);
+ assert(fd >= 0);
- if (ioctl(b->fd, EVIOCGBIT(EV_SYN, sizeof(types)), types) < 0)
+ if (ioctl(fd, EVIOCGBIT(EV_SYN, sizeof types), types) < 0)
return -errno;
if (bitset_get(types, EV_KEY)) {
- unsigned long keys[CONST_MAX4(KEY_POWER, KEY_POWER2, KEY_SLEEP, KEY_SUSPEND)/ULONG_BITS+1];
+ unsigned long keys[CONST_MAX5(KEY_POWER, KEY_POWER2, KEY_SLEEP, KEY_SUSPEND, KEY_RESTART)/ULONG_BITS+1];
- if (ioctl(b->fd, EVIOCGBIT(EV_KEY, sizeof(keys)), keys) < 0)
+ if (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof keys), keys) < 0)
return -errno;
if (bitset_get(keys, KEY_POWER) ||
bitset_get(keys, KEY_POWER2) ||
bitset_get(keys, KEY_SLEEP) ||
- bitset_get(keys, KEY_SUSPEND))
+ bitset_get(keys, KEY_SUSPEND) ||
+ bitset_get(keys, KEY_RESTART))
return true;
}
if (bitset_get(types, EV_SW)) {
unsigned long switches[CONST_MAX(SW_LID, SW_DOCK)/ULONG_BITS+1];
- if (ioctl(b->fd, EVIOCGBIT(EV_SW, sizeof(switches)), switches) < 0)
+ if (ioctl(fd, EVIOCGBIT(EV_SW, sizeof switches), switches) < 0)
return -errno;
if (bitset_get(switches, SW_LID) ||
return false;
}
-static int button_set_mask(Button *b) {
+static int button_set_mask(const char *name, int fd) {
unsigned long
types[CONST_MAX(EV_KEY, EV_SW)/ULONG_BITS+1] = {},
- keys[CONST_MAX4(KEY_POWER, KEY_POWER2, KEY_SLEEP, KEY_SUSPEND)/ULONG_BITS+1] = {},
+ keys[CONST_MAX5(KEY_POWER, KEY_POWER2, KEY_SLEEP, KEY_SUSPEND, KEY_RESTART)/ULONG_BITS+1] = {},
switches[CONST_MAX(SW_LID, SW_DOCK)/ULONG_BITS+1] = {};
struct input_mask mask;
- assert(b);
- assert(b->fd >= 0);
+ assert(name);
+ assert(fd >= 0);
bitset_put(types, EV_KEY);
bitset_put(types, EV_SW);
.codes_ptr = PTR_TO_UINT64(types),
};
- if (ioctl(b->fd, EVIOCSMASK, &mask) < 0)
+ if (ioctl(fd, EVIOCSMASK, &mask) < 0)
/* Log only at debug level if the kernel doesn't do EVIOCSMASK yet */
return log_full_errno(IN_SET(errno, ENOTTY, EOPNOTSUPP, EINVAL) ? LOG_DEBUG : LOG_WARNING,
- errno, "Failed to set EV_SYN event mask on /dev/input/%s: %m", b->name);
+ errno, "Failed to set EV_SYN event mask on /dev/input/%s: %m", name);
bitset_put(keys, KEY_POWER);
bitset_put(keys, KEY_POWER2);
bitset_put(keys, KEY_SLEEP);
bitset_put(keys, KEY_SUSPEND);
+ bitset_put(keys, KEY_RESTART);
mask = (struct input_mask) {
.type = EV_KEY,
.codes_ptr = PTR_TO_UINT64(keys),
};
- if (ioctl(b->fd, EVIOCSMASK, &mask) < 0)
- return log_warning_errno(errno, "Failed to set EV_KEY event mask on /dev/input/%s: %m", b->name);
+ if (ioctl(fd, EVIOCSMASK, &mask) < 0)
+ return log_warning_errno(errno, "Failed to set EV_KEY event mask on /dev/input/%s: %m", name);
bitset_put(switches, SW_LID);
bitset_put(switches, SW_DOCK);
.codes_ptr = PTR_TO_UINT64(switches),
};
- if (ioctl(b->fd, EVIOCSMASK, &mask) < 0)
- return log_warning_errno(errno, "Failed to set EV_SW event mask on /dev/input/%s: %m", b->name);
+ if (ioctl(fd, EVIOCSMASK, &mask) < 0)
+ return log_warning_errno(errno, "Failed to set EV_SW event mask on /dev/input/%s: %m", name);
return 0;
}
int button_open(Button *b) {
- char *p, name[256];
+ _cleanup_(asynchronous_closep) int fd = -1;
+ const char *p;
+ char name[256];
int r;
assert(b);
- b->fd = safe_close(b->fd);
+ b->fd = asynchronous_close(b->fd);
p = strjoina("/dev/input/", b->name);
- b->fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
- if (b->fd < 0)
+ fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
+ if (fd < 0)
return log_warning_errno(errno, "Failed to open %s: %m", p);
- r = button_suitable(b);
+ r = button_suitable(fd);
if (r < 0)
- return log_warning_errno(r, "Failed to determine whether input device is relevant to us: %m");
+ return log_warning_errno(r, "Failed to determine whether input device %s is relevant to us: %m", p);
if (r == 0)
return log_debug_errno(SYNTHETIC_ERRNO(EADDRNOTAVAIL),
- "Device %s does not expose keys or switches relevant to us, ignoring.",
- p);
+ "Device %s does not expose keys or switches relevant to us, ignoring.", p);
- if (ioctl(b->fd, EVIOCGNAME(sizeof(name)), name) < 0) {
- r = log_error_errno(errno, "Failed to get input name: %m");
- goto fail;
- }
+ if (ioctl(fd, EVIOCGNAME(sizeof name), name) < 0)
+ return log_error_errno(errno, "Failed to get input name for %s: %m", p);
- (void) button_set_mask(b);
+ (void) button_set_mask(b->name, fd);
- r = sd_event_add_io(b->manager->event, &b->io_event_source, b->fd, EPOLLIN, button_dispatch, b);
- if (r < 0) {
- log_error_errno(r, "Failed to add button event: %m");
- goto fail;
- }
-
- log_info("Watching system buttons on /dev/input/%s (%s)", b->name, name);
+ b->io_event_source = sd_event_source_unref(b->io_event_source);
+ r = sd_event_add_io(b->manager->event, &b->io_event_source, fd, EPOLLIN, button_dispatch, b);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add button event for %s: %m", p);
+ b->fd = TAKE_FD(fd);
+ log_info("Watching system buttons on %s (%s)", p, name);
return 0;
-
-fail:
- b->fd = safe_close(b->fd);
- return r;
}
int button_check_switches(Button *b) {