/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2015-2017 Vladimir Kondratyev * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #define L2CAP_SOCKET_CHECKED #include #include #include #include #include #include #include #include #include #include "bthid_config.h" #include "bthidd.h" #include "btuinput.h" static int16_t const mbuttons[8] = { BTN_LEFT, BTN_MIDDLE, BTN_RIGHT, BTN_SIDE, BTN_EXTRA, BTN_FORWARD, BTN_BACK, BTN_TASK }; static uint16_t const led_codes[3] = { LED_CAPSL, /* CLKED */ LED_NUML, /* NLKED */ LED_SCROLLL, /* SLKED */ }; #define NONE KEY_RESERVED static uint16_t const keymap[0x100] = { /* 0x00 - 0x27 */ NONE, NONE, NONE, NONE, KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0, /* 0x28 - 0x3f */ KEY_ENTER, KEY_ESC, KEY_BACKSPACE, KEY_TAB, KEY_SPACE, KEY_MINUS, KEY_EQUAL, KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_BACKSLASH, KEY_SEMICOLON, KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, KEY_DOT, KEY_SLASH, KEY_CAPSLOCK, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, /* 0x40 - 0x5f */ KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_SYSRQ, KEY_SCROLLLOCK, KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGEUP, KEY_DELETE, KEY_END, KEY_PAGEDOWN, KEY_RIGHT, KEY_LEFT, KEY_DOWN, KEY_UP, KEY_NUMLOCK, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS, KEY_KPPLUS, KEY_KPENTER, KEY_KP1, KEY_KP2, KEY_KP3, KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, /* 0x60 - 0x7f */ KEY_KP8, KEY_KP9, KEY_KP0, KEY_KPDOT, KEY_102ND, KEY_COMPOSE, KEY_POWER, KEY_KPEQUAL, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17, KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23, KEY_F24, KEY_OPEN, KEY_HELP, KEY_PROPS, KEY_FRONT, KEY_STOP, KEY_AGAIN, KEY_UNDO, KEY_CUT, KEY_COPY, KEY_PASTE, KEY_FIND, KEY_MUTE, /* 0x80 - 0x9f */ KEY_VOLUMEUP, KEY_VOLUMEDOWN, NONE, NONE, NONE, KEY_KPCOMMA, NONE, KEY_RO, KEY_KATAKANAHIRAGANA, KEY_YEN,KEY_HENKAN, KEY_MUHENKAN, KEY_KPJPCOMMA, NONE, NONE, NONE, KEY_HANGEUL, KEY_HANJA, KEY_KATAKANA, KEY_HIRAGANA, KEY_ZENKAKUHANKAKU, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, /* 0xa0 - 0xbf */ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, /* 0xc0 - 0xdf */ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, /* 0xe0 - 0xff */ KEY_LEFTCTRL, KEY_LEFTSHIFT, KEY_LEFTALT, KEY_LEFTMETA, KEY_RIGHTCTRL, KEY_RIGHTSHIFT, KEY_RIGHTALT, KEY_RIGHTMETA, KEY_PLAYPAUSE, KEY_STOPCD, KEY_PREVIOUSSONG,KEY_NEXTSONG, KEY_EJECTCD, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, KEY_WWW, KEY_BACK, KEY_FORWARD, KEY_STOP, KEY_FIND, KEY_SCROLLUP, KEY_SCROLLDOWN, KEY_EDIT, KEY_SLEEP, KEY_COFFEE, KEY_REFRESH, KEY_CALC, NONE, NONE, NONE, NONE, }; /* Consumer page usage mapping */ static uint16_t const consmap[0x300] = { [0x030] = KEY_POWER, [0x031] = KEY_RESTART, [0x032] = KEY_SLEEP, [0x034] = KEY_SLEEP, [0x035] = KEY_KBDILLUMTOGGLE, [0x036] = BTN_MISC, [0x040] = KEY_MENU, [0x041] = KEY_SELECT, [0x042] = KEY_UP, [0x043] = KEY_DOWN, [0x044] = KEY_LEFT, [0x045] = KEY_RIGHT, [0x046] = KEY_ESC, [0x047] = KEY_KPPLUS, [0x048] = KEY_KPMINUS, [0x060] = KEY_INFO, [0x061] = KEY_SUBTITLE, [0x063] = KEY_VCR, [0x065] = KEY_CAMERA, [0x069] = KEY_RED, [0x06a] = KEY_GREEN, [0x06b] = KEY_BLUE, [0x06c] = KEY_YELLOW, [0x06d] = KEY_ZOOM, [0x06f] = KEY_BRIGHTNESSUP, [0x070] = KEY_BRIGHTNESSDOWN, [0x072] = KEY_BRIGHTNESS_TOGGLE, [0x073] = KEY_BRIGHTNESS_MIN, [0x074] = KEY_BRIGHTNESS_MAX, [0x075] = KEY_BRIGHTNESS_AUTO, [0x082] = KEY_VIDEO_NEXT, [0x083] = KEY_LAST, [0x084] = KEY_ENTER, [0x088] = KEY_PC, [0x089] = KEY_TV, [0x08a] = KEY_WWW, [0x08b] = KEY_DVD, [0x08c] = KEY_PHONE, [0x08d] = KEY_PROGRAM, [0x08e] = KEY_VIDEOPHONE, [0x08f] = KEY_GAMES, [0x090] = KEY_MEMO, [0x091] = KEY_CD, [0x092] = KEY_VCR, [0x093] = KEY_TUNER, [0x094] = KEY_EXIT, [0x095] = KEY_HELP, [0x096] = KEY_TAPE, [0x097] = KEY_TV2, [0x098] = KEY_SAT, [0x09a] = KEY_PVR, [0x09c] = KEY_CHANNELUP, [0x09d] = KEY_CHANNELDOWN, [0x0a0] = KEY_VCR2, [0x0b0] = KEY_PLAY, [0x0b1] = KEY_PAUSE, [0x0b2] = KEY_RECORD, [0x0b3] = KEY_FASTFORWARD, [0x0b4] = KEY_REWIND, [0x0b5] = KEY_NEXTSONG, [0x0b6] = KEY_PREVIOUSSONG, [0x0b7] = KEY_STOPCD, [0x0b8] = KEY_EJECTCD, [0x0bc] = KEY_MEDIA_REPEAT, [0x0b9] = KEY_SHUFFLE, [0x0bf] = KEY_SLOW, [0x0cd] = KEY_PLAYPAUSE, [0x0cf] = KEY_VOICECOMMAND, [0x0e2] = KEY_MUTE, [0x0e5] = KEY_BASSBOOST, [0x0e9] = KEY_VOLUMEUP, [0x0ea] = KEY_VOLUMEDOWN, [0x0f5] = KEY_SLOW, [0x181] = KEY_BUTTONCONFIG, [0x182] = KEY_BOOKMARKS, [0x183] = KEY_CONFIG, [0x184] = KEY_WORDPROCESSOR, [0x185] = KEY_EDITOR, [0x186] = KEY_SPREADSHEET, [0x187] = KEY_GRAPHICSEDITOR, [0x188] = KEY_PRESENTATION, [0x189] = KEY_DATABASE, [0x18a] = KEY_MAIL, [0x18b] = KEY_NEWS, [0x18c] = KEY_VOICEMAIL, [0x18d] = KEY_ADDRESSBOOK, [0x18e] = KEY_CALENDAR, [0x18f] = KEY_TASKMANAGER, [0x190] = KEY_JOURNAL, [0x191] = KEY_FINANCE, [0x192] = KEY_CALC, [0x193] = KEY_PLAYER, [0x194] = KEY_FILE, [0x196] = KEY_WWW, [0x199] = KEY_CHAT, [0x19c] = KEY_LOGOFF, [0x19e] = KEY_COFFEE, [0x19f] = KEY_CONTROLPANEL, [0x1a2] = KEY_APPSELECT, [0x1a3] = KEY_NEXT, [0x1a4] = KEY_PREVIOUS, [0x1a6] = KEY_HELP, [0x1a7] = KEY_DOCUMENTS, [0x1ab] = KEY_SPELLCHECK, [0x1ae] = KEY_KEYBOARD, [0x1b1] = KEY_SCREENSAVER, [0x1b4] = KEY_FILE, [0x1b6] = KEY_IMAGES, [0x1b7] = KEY_AUDIO, [0x1b8] = KEY_VIDEO, [0x1bc] = KEY_MESSENGER, [0x1bd] = KEY_INFO, [0x201] = KEY_NEW, [0x202] = KEY_OPEN, [0x203] = KEY_CLOSE, [0x204] = KEY_EXIT, [0x207] = KEY_SAVE, [0x208] = KEY_PRINT, [0x209] = KEY_PROPS, [0x21a] = KEY_UNDO, [0x21b] = KEY_COPY, [0x21c] = KEY_CUT, [0x21d] = KEY_PASTE, [0x21f] = KEY_FIND, [0x221] = KEY_SEARCH, [0x222] = KEY_GOTO, [0x223] = KEY_HOMEPAGE, [0x224] = KEY_BACK, [0x225] = KEY_FORWARD, [0x226] = KEY_STOP, [0x227] = KEY_REFRESH, [0x22a] = KEY_BOOKMARKS, [0x22d] = KEY_ZOOMIN, [0x22e] = KEY_ZOOMOUT, [0x22f] = KEY_ZOOMRESET, [0x233] = KEY_SCROLLUP, [0x234] = KEY_SCROLLDOWN, [0x23d] = KEY_EDIT, [0x25f] = KEY_CANCEL, [0x269] = KEY_INSERT, [0x26a] = KEY_DELETE, [0x279] = KEY_REDO, [0x289] = KEY_REPLY, [0x28b] = KEY_FORWARDMAIL, [0x28c] = KEY_SEND, [0x2c7] = KEY_KBDINPUTASSIST_PREV, [0x2c8] = KEY_KBDINPUTASSIST_NEXT, [0x2c9] = KEY_KBDINPUTASSIST_PREVGROUP, [0x2ca] = KEY_KBDINPUTASSIST_NEXTGROUP, [0x2cb] = KEY_KBDINPUTASSIST_ACCEPT, [0x2cc] = KEY_KBDINPUTASSIST_CANCEL, }; static int32_t uinput_open_common(hid_device_p const p, bdaddr_p local, const uint8_t *name) { struct uinput_setup uisetup; uint8_t phys[UINPUT_MAX_NAME_SIZE]; uint8_t uniq[UINPUT_MAX_NAME_SIZE]; int32_t fd; /* Take local and remote bdaddr */ bt_ntoa(local, phys); bt_ntoa(&p->bdaddr, uniq); /* Take device name from bthidd.conf. Fallback to generic name. */ if (p->name != NULL) name = p->name; /* Set device name and bus/vendor information */ memset(&uisetup, 0, sizeof(uisetup)); snprintf(uisetup.name, UINPUT_MAX_NAME_SIZE, "%s, bdaddr %s", name, uniq); uisetup.id.bustype = BUS_BLUETOOTH; uisetup.id.vendor = p->vendor_id; uisetup.id.product = p->product_id; uisetup.id.version = p->version; fd = open("/dev/uinput", O_RDWR | O_NONBLOCK); if (ioctl(fd, UI_SET_PHYS, phys) < 0 || ioctl(fd, UI_SET_BSDUNIQ, uniq) < 0 || ioctl(fd, UI_DEV_SETUP, &uisetup) < 0) return (-1); return (fd); } /* * Setup uinput device as 8button mouse with wheel(s) * TODO: bring in more feature detection code from ums */ int32_t uinput_open_mouse(hid_device_p const p, bdaddr_p local) { size_t i; int32_t fd; assert(p != NULL); if ((fd = uinput_open_common(p, local, "Bluetooth Mouse")) < 0) goto bail_out; /* Advertise events and axes */ if (ioctl(fd, UI_SET_EVBIT, EV_SYN) < 0 || ioctl(fd, UI_SET_EVBIT, EV_KEY) < 0 || ioctl(fd, UI_SET_EVBIT, EV_REL) < 0 || ioctl(fd, UI_SET_RELBIT, REL_X) < 0 || ioctl(fd, UI_SET_RELBIT, REL_Y) < 0 || (p->has_wheel && ioctl(fd, UI_SET_RELBIT, REL_WHEEL) < 0) || (p->has_hwheel && ioctl(fd, UI_SET_RELBIT, REL_HWHEEL) < 0) || ioctl(fd, UI_SET_PROPBIT, INPUT_PROP_POINTER) < 0) goto bail_out; /* Advertise mouse buttons */ for (i = 0; i < nitems(mbuttons); i++) if (ioctl(fd, UI_SET_KEYBIT, mbuttons[i]) < 0) goto bail_out; if (ioctl(fd, UI_DEV_CREATE) >= 0) return (fd); /* SUCCESS */ bail_out: if (fd >= 0) close(fd); return (-1); } /* * Setup uinput keyboard */ int32_t uinput_open_keyboard(hid_device_p const p, bdaddr_p local) { size_t i; int32_t fd; assert(p != NULL); if ((fd = uinput_open_common(p, local, "Bluetooth Keyboard")) < 0) goto bail_out; /* Advertise key events and LEDs */ if (ioctl(fd, UI_SET_EVBIT, EV_KEY) < 0 || ioctl(fd, UI_SET_EVBIT, EV_LED) < 0 || ioctl(fd, UI_SET_EVBIT, EV_SYN) < 0 || ioctl(fd, UI_SET_EVBIT, EV_REP) < 0 || ioctl(fd, UI_SET_LEDBIT, LED_CAPSL) < 0 || ioctl(fd, UI_SET_LEDBIT, LED_NUML) < 0 || ioctl(fd, UI_SET_LEDBIT, LED_SCROLLL)) goto bail_out; /* Advertise keycodes */ for (i = 0; i < nitems(keymap); i++) if (keymap[i] != NONE && ioctl(fd, UI_SET_KEYBIT, keymap[i]) < 0) goto bail_out; /* Advertise consumer page keys if any */ if (p->has_cons) { for (i = 0; i < nitems(consmap); i++) { if (consmap[i] != NONE && ioctl(fd, UI_SET_KEYBIT, consmap[i]) < 0) goto bail_out; } } if (ioctl(fd, UI_DEV_CREATE) >= 0) return (fd); /* SUCCESS */ bail_out: if (fd >= 0) close(fd); return (-1); } /* from sys/dev/evdev/evdev.h */ #define EVDEV_RCPT_HW_MOUSE (1<<2) #define EVDEV_RCPT_HW_KBD (1<<3) #define MASK_POLL_INTERVAL 5 /* seconds */ #define MASK_SYSCTL "kern.evdev.rcpt_mask" static int32_t uinput_get_rcpt_mask(void) { static struct timespec last = { 0, 0 }; struct timespec now; static int32_t mask = 0; size_t len; time_t elapsed; if (clock_gettime(CLOCK_MONOTONIC_FAST, &now) == -1) return mask; elapsed = now.tv_sec - last.tv_sec; if (now.tv_nsec < last.tv_nsec) elapsed--; if (elapsed >= MASK_POLL_INTERVAL) { len = sizeof(mask); if (sysctlbyname(MASK_SYSCTL, &mask, &len, NULL, 0) < 0) { if (errno == ENOENT) /* kernel is compiled w/o EVDEV_SUPPORT */ mask = EVDEV_RCPT_HW_MOUSE | EVDEV_RCPT_HW_KBD; else mask = 0; } last = now; } return mask; } static int32_t uinput_write_event(int32_t fd, uint16_t type, uint16_t code, int32_t value) { struct input_event ie; assert(fd >= 0); memset(&ie, 0, sizeof(ie)); ie.type = type; ie.code = code; ie.value = value; return (write(fd, &ie, sizeof(ie))); } int32_t uinput_rep_mouse(int32_t fd, int32_t x, int32_t y, int32_t z, int32_t t, int32_t buttons, int32_t obuttons) { size_t i; int32_t rcpt_mask, mask; assert(fd >= 0); rcpt_mask = uinput_get_rcpt_mask(); if (!(rcpt_mask & EVDEV_RCPT_HW_MOUSE)) return (0); if ((x != 0 && uinput_write_event(fd, EV_REL, REL_X, x) < 0) || (y != 0 && uinput_write_event(fd, EV_REL, REL_Y, y) < 0) || (z != 0 && uinput_write_event(fd, EV_REL, REL_WHEEL, -z) < 0) || (t != 0 && uinput_write_event(fd, EV_REL, REL_HWHEEL, t) < 0)) return (-1); for (i = 0; i < nitems(mbuttons); i++) { mask = 1 << i; if ((buttons & mask) == (obuttons & mask)) continue; if (uinput_write_event(fd, EV_KEY, mbuttons[i], (buttons & mask) != 0) < 0) return (-1); } if (uinput_write_event(fd, EV_SYN, SYN_REPORT, 0) < 0) return (-1); return (0); } /* * Translate and report keyboard page key events */ int32_t uinput_rep_key(int32_t fd, int32_t key, int32_t make) { int32_t rcpt_mask; assert(fd >= 0); rcpt_mask = uinput_get_rcpt_mask(); if (!(rcpt_mask & EVDEV_RCPT_HW_KBD)) return (0); if (key >= 0 && key < (int32_t)nitems(keymap) && keymap[key] != NONE) { if (uinput_write_event(fd, EV_KEY, keymap[key], make) > 0 && uinput_write_event(fd, EV_SYN, SYN_REPORT, 0) > 0) return (0); } return (-1); } /* * Translate and report consumer page key events */ int32_t uinput_rep_cons(int32_t fd, int32_t key, int32_t make) { int32_t rcpt_mask; assert(fd >= 0); rcpt_mask = uinput_get_rcpt_mask(); if (!(rcpt_mask & EVDEV_RCPT_HW_KBD)) return (0); if (key >= 0 && key < (int32_t)nitems(consmap) && consmap[key] != NONE) { if (uinput_write_event(fd, EV_KEY, consmap[key], make) > 0 && uinput_write_event(fd, EV_SYN, SYN_REPORT, 0) > 0) return (0); } return (-1); } /* * Translate and report LED events */ int32_t uinput_rep_leds(int32_t fd, int state, int mask) { size_t i; int32_t rcpt_mask; assert(fd >= 0); rcpt_mask = uinput_get_rcpt_mask(); if (!(rcpt_mask & EVDEV_RCPT_HW_KBD)) return (0); for (i = 0; i < nitems(led_codes); i++) { if (mask & (1 << i) && uinput_write_event(fd, EV_LED, led_codes[i], state & (1 << i) ? 1 : 0) < 0) return (-1); } return (0); } /* * Process status change from evdev */ int32_t uinput_kbd_status_changed(bthid_session_p s, uint8_t *data, int32_t len) { struct input_event ie; int32_t leds, oleds; size_t i; assert(s != NULL); assert(s->vkbd >= 0); assert(len == sizeof(struct input_event)); memcpy(&ie, data, sizeof(ie)); switch (ie.type) { case EV_LED: ioctl(s->vkbd, KDGETLED, &oleds); leds = oleds; for (i = 0; i < nitems(led_codes); i++) { if (led_codes[i] == ie.code) { if (ie.value) leds |= 1 << i; else leds &= ~(1 << i); if (leds != oleds) ioctl(s->vkbd, KDSETLED, leds); break; } } break; case EV_REP: /* FALLTHROUGH. Repeats are handled by evdev subsystem */ default: break; } return (0); }