975b8a90ad
If the keyboard that triggers the reload binding is using the default keymap, default repeat delay, and default repeat rate, the associated keyboard group is never being destroyed on reload. This was causing the keyboard group's keyboard not to get disarmed and result in a use-after-free in handle_keyboard_repeat. If the keyboard was not using the defaults for all three settings, then it's associated keyboard would get destroyed during the reset - which did disarm the keyboard group's keyboard. In this case, the use-after-free would not occur. This adds a block to input_manager_reset_all_inputs that resets the keyboard for all keyboard groups in all seats, which will disarm them. Since the inputs are all being reset anyway, which will reset all individual keyboards, it is not necessary to be selective on which ones get reset.
671 lines
20 KiB
C
671 lines
20 KiB
C
#define _POSIX_C_SOURCE 200809L
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <wlr/backend/libinput.h>
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#include <wlr/types/wlr_cursor.h>
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#include <wlr/types/wlr_keyboard_group.h>
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#include <wlr/types/wlr_input_inhibitor.h>
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#include <wlr/types/wlr_virtual_keyboard_v1.h>
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#include <wlr/types/wlr_virtual_pointer_v1.h>
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#include "sway/config.h"
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#include "sway/input/cursor.h"
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#include "sway/input/input-manager.h"
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#include "sway/input/keyboard.h"
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#include "sway/input/libinput.h"
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#include "sway/input/seat.h"
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#include "sway/ipc-server.h"
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#include "sway/server.h"
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#include "sway/tree/view.h"
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#include "stringop.h"
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#include "list.h"
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#include "log.h"
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#define DEFAULT_SEAT "seat0"
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struct input_config *current_input_config = NULL;
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struct seat_config *current_seat_config = NULL;
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struct sway_seat *input_manager_current_seat(void) {
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struct sway_seat *seat = config->handler_context.seat;
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if (!seat) {
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seat = input_manager_get_default_seat();
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}
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return seat;
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}
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struct sway_seat *input_manager_get_default_seat(void) {
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return input_manager_get_seat(DEFAULT_SEAT, true);
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}
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struct sway_seat *input_manager_get_seat(const char *seat_name, bool create) {
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struct sway_seat *seat = NULL;
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wl_list_for_each(seat, &server.input->seats, link) {
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if (strcmp(seat->wlr_seat->name, seat_name) == 0) {
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return seat;
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}
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}
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return create ? seat_create(seat_name) : NULL;
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}
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struct sway_seat *input_manager_sway_seat_from_wlr_seat(struct wlr_seat *wlr_seat) {
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struct sway_seat *seat = NULL;
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wl_list_for_each(seat, &server.input->seats, link) {
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if (seat->wlr_seat == wlr_seat) {
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return seat;
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}
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}
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return NULL;
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}
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char *input_device_get_identifier(struct wlr_input_device *device) {
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int vendor = device->vendor;
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int product = device->product;
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char *name = strdup(device->name ? device->name : "");
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strip_whitespace(name);
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char *p = name;
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for (; *p; ++p) {
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if (*p == ' ') {
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*p = '_';
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}
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}
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const char *fmt = "%d:%d:%s";
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int len = snprintf(NULL, 0, fmt, vendor, product, name) + 1;
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char *identifier = malloc(len);
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if (!identifier) {
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sway_log(SWAY_ERROR, "Unable to allocate unique input device name");
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return NULL;
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}
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snprintf(identifier, len, fmt, vendor, product, name);
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free(name);
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return identifier;
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}
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static bool device_is_touchpad(struct sway_input_device *device) {
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if (device->wlr_device->type != WLR_INPUT_DEVICE_POINTER ||
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!wlr_input_device_is_libinput(device->wlr_device)) {
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return false;
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}
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struct libinput_device *libinput_device =
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wlr_libinput_get_device_handle(device->wlr_device);
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return libinput_device_config_tap_get_finger_count(libinput_device) > 0;
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}
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const char *input_device_get_type(struct sway_input_device *device) {
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switch (device->wlr_device->type) {
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case WLR_INPUT_DEVICE_POINTER:
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if (device_is_touchpad(device)) {
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return "touchpad";
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} else {
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return "pointer";
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}
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case WLR_INPUT_DEVICE_KEYBOARD:
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return "keyboard";
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case WLR_INPUT_DEVICE_TOUCH:
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return "touch";
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case WLR_INPUT_DEVICE_TABLET_TOOL:
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return "tablet_tool";
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case WLR_INPUT_DEVICE_TABLET_PAD:
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return "tablet_pad";
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case WLR_INPUT_DEVICE_SWITCH:
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return "switch";
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}
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return "unknown";
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}
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static void apply_input_type_config(struct sway_input_device *input_device) {
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const char *device_type = input_device_get_type(input_device);
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struct input_config *type_config = NULL;
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for (int i = 0; i < config->input_type_configs->length; i++) {
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struct input_config *ic = config->input_type_configs->items[i];
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if (strcmp(ic->identifier + 5, device_type) == 0) {
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type_config = ic;
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break;
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}
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}
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if (type_config == NULL) {
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return;
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}
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for (int i = 0; i < config->input_configs->length; i++) {
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struct input_config *ic = config->input_configs->items[i];
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if (strcmp(input_device->identifier, ic->identifier) == 0) {
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struct input_config *current = new_input_config(ic->identifier);
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merge_input_config(current, type_config);
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merge_input_config(current, ic);
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current->input_type = device_type;
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config->input_configs->items[i] = current;
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free_input_config(ic);
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ic = NULL;
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break;
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}
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}
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}
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static struct sway_input_device *input_sway_device_from_wlr(
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struct wlr_input_device *device) {
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struct sway_input_device *input_device = NULL;
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wl_list_for_each(input_device, &server.input->devices, link) {
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if (input_device->wlr_device == device) {
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return input_device;
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}
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}
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return NULL;
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}
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static bool input_has_seat_fallback_configuration(void) {
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struct sway_seat *seat = NULL;
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wl_list_for_each(seat, &server.input->seats, link) {
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struct seat_config *seat_config = seat_get_config(seat);
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if (seat_config && strcmp(seat_config->name, "*") != 0
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&& seat_config->fallback != -1) {
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return true;
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}
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}
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return false;
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}
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void input_manager_verify_fallback_seat(void) {
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struct sway_seat *seat = NULL;
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if (!input_has_seat_fallback_configuration()) {
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sway_log(SWAY_DEBUG, "no fallback seat config - creating default");
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seat = input_manager_get_default_seat();
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struct seat_config *sc = new_seat_config(seat->wlr_seat->name);
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sc->fallback = true;
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sc = store_seat_config(sc);
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input_manager_apply_seat_config(sc);
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}
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}
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static void handle_device_destroy(struct wl_listener *listener, void *data) {
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struct wlr_input_device *device = data;
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struct sway_input_device *input_device = input_sway_device_from_wlr(device);
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if (!sway_assert(input_device, "could not find sway device")) {
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return;
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}
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sway_log(SWAY_DEBUG, "removing device: '%s'",
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input_device->identifier);
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struct sway_seat *seat = NULL;
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wl_list_for_each(seat, &server.input->seats, link) {
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seat_remove_device(seat, input_device);
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}
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ipc_event_input("removed", input_device);
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wl_list_remove(&input_device->link);
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wl_list_remove(&input_device->device_destroy.link);
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free(input_device->identifier);
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free(input_device);
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}
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static void handle_new_input(struct wl_listener *listener, void *data) {
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struct sway_input_manager *input =
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wl_container_of(listener, input, new_input);
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struct wlr_input_device *device = data;
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struct sway_input_device *input_device =
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calloc(1, sizeof(struct sway_input_device));
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if (!sway_assert(input_device, "could not allocate input device")) {
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return;
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}
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device->data = input_device;
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input_device->wlr_device = device;
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input_device->identifier = input_device_get_identifier(device);
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wl_list_insert(&input->devices, &input_device->link);
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sway_log(SWAY_DEBUG, "adding device: '%s'",
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input_device->identifier);
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apply_input_type_config(input_device);
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sway_input_configure_libinput_device(input_device);
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wl_signal_add(&device->events.destroy, &input_device->device_destroy);
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input_device->device_destroy.notify = handle_device_destroy;
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input_manager_verify_fallback_seat();
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bool added = false;
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struct sway_seat *seat = NULL;
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wl_list_for_each(seat, &input->seats, link) {
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struct seat_config *seat_config = seat_get_config(seat);
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bool has_attachment = seat_config &&
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(seat_config_get_attachment(seat_config, input_device->identifier) ||
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seat_config_get_attachment(seat_config, "*"));
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if (has_attachment) {
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seat_add_device(seat, input_device);
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added = true;
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}
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}
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if (!added) {
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wl_list_for_each(seat, &input->seats, link) {
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struct seat_config *seat_config = seat_get_config(seat);
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if (seat_config && seat_config->fallback == 1) {
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seat_add_device(seat, input_device);
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added = true;
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}
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}
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}
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if (!added) {
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sway_log(SWAY_DEBUG,
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"device '%s' is not configured on any seats",
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input_device->identifier);
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}
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ipc_event_input("added", input_device);
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}
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static void handle_inhibit_activate(struct wl_listener *listener, void *data) {
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struct sway_input_manager *input_manager = wl_container_of(
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listener, input_manager, inhibit_activate);
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struct sway_seat *seat;
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wl_list_for_each(seat, &input_manager->seats, link) {
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seat_set_exclusive_client(seat, input_manager->inhibit->active_client);
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}
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}
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static void handle_inhibit_deactivate(struct wl_listener *listener, void *data) {
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struct sway_input_manager *input_manager = wl_container_of(
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listener, input_manager, inhibit_deactivate);
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struct sway_seat *seat;
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wl_list_for_each(seat, &input_manager->seats, link) {
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seat_set_exclusive_client(seat, NULL);
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struct sway_node *previous = seat_get_focus(seat);
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if (previous) {
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// Hack to get seat to re-focus the return value of get_focus
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seat_set_focus(seat, NULL);
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seat_set_focus(seat, previous);
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}
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}
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}
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static void handle_keyboard_shortcuts_inhibitor_destroy(
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struct wl_listener *listener, void *data) {
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struct sway_keyboard_shortcuts_inhibitor *sway_inhibitor =
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wl_container_of(listener, sway_inhibitor, destroy);
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sway_log(SWAY_DEBUG, "Removing keyboard shortcuts inhibitor");
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// sway_seat::keyboard_shortcuts_inhibitors
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wl_list_remove(&sway_inhibitor->link);
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wl_list_remove(&sway_inhibitor->destroy.link);
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free(sway_inhibitor);
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}
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static void handle_keyboard_shortcuts_inhibit_new_inhibitor(
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struct wl_listener *listener, void *data) {
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struct sway_input_manager *input_manager =
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wl_container_of(listener, input_manager,
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keyboard_shortcuts_inhibit_new_inhibitor);
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struct wlr_keyboard_shortcuts_inhibitor_v1 *inhibitor = data;
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sway_log(SWAY_DEBUG, "Adding keyboard shortcuts inhibitor");
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struct sway_keyboard_shortcuts_inhibitor *sway_inhibitor =
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calloc(1, sizeof(struct sway_keyboard_shortcuts_inhibitor));
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if (!sway_assert(sway_inhibitor, "could not allocate keyboard "
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"shortcuts inhibitor")) {
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return;
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}
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sway_inhibitor->inhibitor = inhibitor;
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sway_inhibitor->destroy.notify = handle_keyboard_shortcuts_inhibitor_destroy;
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wl_signal_add(&inhibitor->events.destroy, &sway_inhibitor->destroy);
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// attach inhibitor to the seat it applies to
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struct sway_seat *seat = inhibitor->seat->data;
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wl_list_insert(&seat->keyboard_shortcuts_inhibitors, &sway_inhibitor->link);
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// per-view, seat-agnostic config via criteria
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struct sway_view *view = view_from_wlr_surface(inhibitor->surface);
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enum seat_config_shortcuts_inhibit inhibit = SHORTCUTS_INHIBIT_DEFAULT;
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if (view) {
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inhibit = view->shortcuts_inhibit;
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}
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if (inhibit == SHORTCUTS_INHIBIT_DEFAULT) {
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struct seat_config *config = seat_get_config(seat);
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if (!config) {
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config = seat_get_config_by_name("*");
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}
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if (config) {
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inhibit = config->shortcuts_inhibit;
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}
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}
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if (inhibit == SHORTCUTS_INHIBIT_DISABLE) {
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/**
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* Here we deny to honour the inhibitor by never sending the
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* activate signal. We can not, however, destroy the inhibitor
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* because the protocol doesn't allow for it. So it will linger
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* until the client removes it im- or explicitly. But at least
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* it can only be one inhibitor per surface and seat at a time.
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*
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* We also want to allow the user to activate the inhibitor
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* manually later which is why we do this check here where the
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* inhibitor is already attached to its seat and ready for use.
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*/
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return;
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}
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wlr_keyboard_shortcuts_inhibitor_v1_activate(inhibitor);
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}
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void handle_virtual_keyboard(struct wl_listener *listener, void *data) {
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struct sway_input_manager *input_manager =
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wl_container_of(listener, input_manager, virtual_keyboard_new);
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struct wlr_virtual_keyboard_v1 *keyboard = data;
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struct wlr_input_device *device = &keyboard->input_device;
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// TODO: Amend protocol to allow NULL seat
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struct sway_seat *seat = keyboard->seat ?
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input_manager_sway_seat_from_wlr_seat(keyboard->seat) :
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input_manager_get_default_seat();
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struct sway_input_device *input_device =
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calloc(1, sizeof(struct sway_input_device));
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if (!sway_assert(input_device, "could not allocate input device")) {
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return;
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}
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device->data = input_device;
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input_device->is_virtual = true;
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input_device->wlr_device = device;
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input_device->identifier = input_device_get_identifier(device);
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wl_list_insert(&input_manager->devices, &input_device->link);
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sway_log(SWAY_DEBUG, "adding virtual keyboard: '%s'",
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input_device->identifier);
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wl_signal_add(&device->events.destroy, &input_device->device_destroy);
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input_device->device_destroy.notify = handle_device_destroy;
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seat_add_device(seat, input_device);
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}
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void handle_virtual_pointer(struct wl_listener *listener, void *data) {
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struct sway_input_manager *input_manager =
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wl_container_of(listener, input_manager, virtual_pointer_new);
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struct wlr_virtual_pointer_v1_new_pointer_event *event = data;
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struct wlr_virtual_pointer_v1 *pointer = event->new_pointer;
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struct wlr_input_device *device = &pointer->input_device;
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struct sway_seat *seat = event->suggested_seat ?
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input_manager_sway_seat_from_wlr_seat(event->suggested_seat) :
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input_manager_get_default_seat();
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struct sway_input_device *input_device =
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calloc(1, sizeof(struct sway_input_device));
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if (!sway_assert(input_device, "could not allocate input device")) {
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return;
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}
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device->data = input_device;
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input_device->is_virtual = true;
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input_device->wlr_device = device;
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input_device->identifier = input_device_get_identifier(device);
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wl_list_insert(&input_manager->devices, &input_device->link);
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sway_log(SWAY_DEBUG, "adding virtual pointer: '%s'",
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input_device->identifier);
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wl_signal_add(&device->events.destroy, &input_device->device_destroy);
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input_device->device_destroy.notify = handle_device_destroy;
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seat_add_device(seat, input_device);
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if (event->suggested_output) {
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wlr_cursor_map_input_to_output(seat->cursor->cursor, device,
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event->suggested_output);
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}
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}
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struct sway_input_manager *input_manager_create(struct sway_server *server) {
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struct sway_input_manager *input =
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calloc(1, sizeof(struct sway_input_manager));
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if (!input) {
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return NULL;
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}
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wl_list_init(&input->devices);
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wl_list_init(&input->seats);
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input->new_input.notify = handle_new_input;
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wl_signal_add(&server->backend->events.new_input, &input->new_input);
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input->virtual_keyboard = wlr_virtual_keyboard_manager_v1_create(
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server->wl_display);
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wl_signal_add(&input->virtual_keyboard->events.new_virtual_keyboard,
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&input->virtual_keyboard_new);
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input->virtual_keyboard_new.notify = handle_virtual_keyboard;
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input->virtual_pointer = wlr_virtual_pointer_manager_v1_create(
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server->wl_display
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);
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wl_signal_add(&input->virtual_pointer->events.new_virtual_pointer,
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&input->virtual_pointer_new);
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input->virtual_pointer_new.notify = handle_virtual_pointer;
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input->inhibit = wlr_input_inhibit_manager_create(server->wl_display);
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input->inhibit_activate.notify = handle_inhibit_activate;
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wl_signal_add(&input->inhibit->events.activate,
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&input->inhibit_activate);
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input->inhibit_deactivate.notify = handle_inhibit_deactivate;
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wl_signal_add(&input->inhibit->events.deactivate,
|
|
&input->inhibit_deactivate);
|
|
|
|
input->keyboard_shortcuts_inhibit =
|
|
wlr_keyboard_shortcuts_inhibit_v1_create(server->wl_display);
|
|
input->keyboard_shortcuts_inhibit_new_inhibitor.notify =
|
|
handle_keyboard_shortcuts_inhibit_new_inhibitor;
|
|
wl_signal_add(&input->keyboard_shortcuts_inhibit->events.new_inhibitor,
|
|
&input->keyboard_shortcuts_inhibit_new_inhibitor);
|
|
|
|
return input;
|
|
}
|
|
|
|
bool input_manager_has_focus(struct sway_node *node) {
|
|
struct sway_seat *seat = NULL;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
if (seat_get_focus(seat) == node) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void input_manager_set_focus(struct sway_node *node) {
|
|
struct sway_seat *seat;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
seat_set_focus(seat, node);
|
|
seat_consider_warp_to_focus(seat);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Re-translate keysyms if a change in the input config could affect them.
|
|
*/
|
|
static void retranslate_keysyms(struct input_config *input_config) {
|
|
for (int i = 0; i < config->input_configs->length; ++i) {
|
|
struct input_config *ic = config->input_configs->items[i];
|
|
if (ic->xkb_layout || ic->xkb_file) {
|
|
// this is the first config with xkb_layout or xkb_file
|
|
if (ic->identifier == input_config->identifier) {
|
|
translate_keysyms(ic);
|
|
}
|
|
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void input_manager_apply_input_config(struct input_config *input_config) {
|
|
struct sway_input_device *input_device = NULL;
|
|
bool wildcard = strcmp(input_config->identifier, "*") == 0;
|
|
bool type_wildcard = strncmp(input_config->identifier, "type:", 5) == 0;
|
|
wl_list_for_each(input_device, &server.input->devices, link) {
|
|
bool type_matches = type_wildcard &&
|
|
strcmp(input_device_get_type(input_device), input_config->identifier + 5) == 0;
|
|
if (strcmp(input_device->identifier, input_config->identifier) == 0
|
|
|| wildcard
|
|
|| type_matches) {
|
|
sway_input_configure_libinput_device(input_device);
|
|
struct sway_seat *seat = NULL;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
seat_configure_device(seat, input_device);
|
|
}
|
|
}
|
|
}
|
|
|
|
retranslate_keysyms(input_config);
|
|
}
|
|
|
|
void input_manager_reset_input(struct sway_input_device *input_device) {
|
|
sway_input_reset_libinput_device(input_device);
|
|
struct sway_seat *seat = NULL;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
seat_reset_device(seat, input_device);
|
|
}
|
|
}
|
|
|
|
void input_manager_reset_all_inputs() {
|
|
struct sway_input_device *input_device = NULL;
|
|
wl_list_for_each(input_device, &server.input->devices, link) {
|
|
input_manager_reset_input(input_device);
|
|
}
|
|
|
|
// If there is at least one keyboard using the default keymap, repeat delay,
|
|
// and repeat rate, then it is possible that there is a keyboard group that
|
|
// needs to be reset. This will disarm the keyboards as well as exit and
|
|
// re-enter any focus views.
|
|
struct sway_seat *seat;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
struct sway_keyboard_group *group;
|
|
wl_list_for_each(group, &seat->keyboard_groups, link) {
|
|
seat_reset_device(seat, group->seat_device->input_device);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void input_manager_apply_seat_config(struct seat_config *seat_config) {
|
|
sway_log(SWAY_DEBUG, "applying seat config for seat %s", seat_config->name);
|
|
if (strcmp(seat_config->name, "*") == 0) {
|
|
struct sway_seat *seat = NULL;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
// Only apply the wildcard config directly if there is no seat
|
|
// specific config
|
|
struct seat_config *sc = seat_get_config(seat);
|
|
if (!sc) {
|
|
sc = seat_config;
|
|
}
|
|
seat_apply_config(seat, sc);
|
|
}
|
|
} else {
|
|
struct sway_seat *seat =
|
|
input_manager_get_seat(seat_config->name, true);
|
|
if (!seat) {
|
|
return;
|
|
}
|
|
seat_apply_config(seat, seat_config);
|
|
}
|
|
|
|
// for every device, try to add it to a seat and if no seat has it
|
|
// attached, add it to the fallback seats.
|
|
struct sway_input_device *input_device = NULL;
|
|
wl_list_for_each(input_device, &server.input->devices, link) {
|
|
list_t *seat_list = create_list();
|
|
struct sway_seat *seat = NULL;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
struct seat_config *seat_config = seat_get_config(seat);
|
|
if (!seat_config) {
|
|
continue;
|
|
}
|
|
if (seat_config_get_attachment(seat_config, "*") ||
|
|
seat_config_get_attachment(seat_config,
|
|
input_device->identifier)) {
|
|
list_add(seat_list, seat);
|
|
}
|
|
}
|
|
|
|
if (seat_list->length) {
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
bool attached = false;
|
|
for (int i = 0; i < seat_list->length; ++i) {
|
|
if (seat == seat_list->items[i]) {
|
|
attached = true;
|
|
break;
|
|
}
|
|
}
|
|
if (attached) {
|
|
seat_add_device(seat, input_device);
|
|
} else {
|
|
seat_remove_device(seat, input_device);
|
|
}
|
|
}
|
|
} else {
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
struct seat_config *seat_config = seat_get_config(seat);
|
|
if (seat_config && seat_config->fallback == 1) {
|
|
seat_add_device(seat, input_device);
|
|
} else {
|
|
seat_remove_device(seat, input_device);
|
|
}
|
|
}
|
|
}
|
|
list_free(seat_list);
|
|
}
|
|
}
|
|
|
|
void input_manager_configure_xcursor(void) {
|
|
struct sway_seat *seat = NULL;
|
|
wl_list_for_each(seat, &server.input->seats, link) {
|
|
seat_configure_xcursor(seat);
|
|
}
|
|
}
|
|
|
|
struct input_config *input_device_get_config(struct sway_input_device *device) {
|
|
struct input_config *wildcard_config = NULL;
|
|
struct input_config *input_config = NULL;
|
|
for (int i = 0; i < config->input_configs->length; ++i) {
|
|
input_config = config->input_configs->items[i];
|
|
if (strcmp(input_config->identifier, device->identifier) == 0) {
|
|
return input_config;
|
|
} else if (strcmp(input_config->identifier, "*") == 0) {
|
|
wildcard_config = input_config;
|
|
}
|
|
}
|
|
|
|
const char *device_type = input_device_get_type(device);
|
|
for (int i = 0; i < config->input_type_configs->length; ++i) {
|
|
input_config = config->input_type_configs->items[i];
|
|
if (strcmp(input_config->identifier + 5, device_type) == 0) {
|
|
return input_config;
|
|
}
|
|
}
|
|
|
|
return wildcard_config;
|
|
}
|