From 360f21272f82b229c5f06a354a5b8a2f0f78b922 Mon Sep 17 00:00:00 2001 From: Marmaduke Woodman Date: Fri, 22 Mar 2019 15:54:41 +0100 Subject: [PATCH] add keycode hack --- Dockerfile | 5 +- keycode-hack.c | 230 +++++++++++++++++++++++++++++++++++++++++++++++++ startapp.sh | 2 +- 3 files changed, 235 insertions(+), 2 deletions(-) create mode 100644 keycode-hack.c diff --git a/Dockerfile b/Dockerfile index f3bb840..f916703 100644 --- a/Dockerfile +++ b/Dockerfile @@ -3,11 +3,14 @@ FROM jlesage/baseimage-gui:ubuntu-16.04 ENV APP_NAME="iDRAC 6" \ IDRAC_PORT=443 +COPY keycode-hack.c /keycode-hack.c + RUN apt-get update && \ apt-get install -y software-properties-common wget && \ add-apt-repository ppa:openjdk-r/ppa && \ apt-get update && \ - apt-get install -y openjdk-7-jdk && \ + apt-get install -y openjdk-7-jdk gcc && \ + gcc -o /keycode-hack.so /keycode-hack.c -shared -s -ldl -fPIC && \ rm -rf /var/lib/apt/lists/* RUN mkdir /app && \ diff --git a/keycode-hack.c b/keycode-hack.c new file mode 100644 index 0000000..44537a7 --- /dev/null +++ b/keycode-hack.c @@ -0,0 +1,230 @@ +// from https://github.com/anchor/idrac-kvm-keyboard-fix +/* + * Shared library hack to translate evdev keycodes to old style keycodes. + */ +#include +#include +#include +#include +#include + + +static int (*real_XNextEvent)(Display *, XEvent *) = NULL; +static KeyCode (*real_XKeysymToKeycode)(Display *, KeySym) = NULL; +static KeySym (*sym_XKeycodeToKeysym)(Display *, KeyCode, int) = NULL; +static int hack_initialised = 0; + +#define DEBUG 0 + +#ifdef DEBUG +static FILE *fd = NULL; +#endif + +static void +hack_init(void) +{ + void *h; + + h = dlopen("libX11.so", RTLD_LAZY); + if (h == NULL) { + h = dlopen("libX11.so.6", RTLD_LAZY); + if (h == NULL) { + fprintf(stderr, "Unable to open libX11\n"); + _exit(1); + } + } + + real_XNextEvent = dlsym(h, "XNextEvent"); + if (real_XNextEvent == NULL) { + fprintf(stderr, "Unable to find symbol\n"); + _exit(1); + } + + real_XKeysymToKeycode = dlsym(h, "XKeysymToKeycode"); + if (real_XKeysymToKeycode == NULL) { + fprintf(stderr, "Unable to find symbol\n"); + _exit(1); + } + + sym_XKeycodeToKeysym = dlsym(h, "XKeycodeToKeysym"); + if (sym_XKeycodeToKeysym == NULL) { + fprintf(stderr, "Unable to find symbol\n"); + _exit(1); + } + +#ifdef DEBUG + if (fd == NULL) { + fd = fopen("/tmp/keycode-log", "a"); + if (fd == NULL) + fprintf(stderr, "Unable to open key-log\n"); + } +#endif + + hack_initialised = 1; +} + +int +XNextEvent(Display *display, XEvent *event) +{ + int r; + + if (!hack_initialised) + hack_init(); + + r = real_XNextEvent(display, event); + + if (event->type == KeyPress || event->type == KeyRelease) { + XKeyEvent *keyevent; + KeySym keysym; + + keyevent = (XKeyEvent *)event; +#ifdef DEBUG + fprintf(fd, "KeyEvent: %d\n", keyevent->keycode); + fflush(fd); +#endif + + /* mangle keycodes */ + keysym = sym_XKeycodeToKeysym(display, keyevent->keycode, 0); + switch (keysym) { + /* Modifiers */ + case XK_Shift_R: keyevent->keycode = 62; break; + case XK_Shift_L: keyevent->keycode = 50; break; + case XK_Control_L: keyevent->keycode = 37; break; + case XK_Control_R: keyevent->keycode = 105; break; + case XK_Alt_L: keyevent->keycode = 64; break; + case XK_Alt_R: keyevent->keycode = 108; break; + case XK_Super_R: keyevent->keycode = 143; break; + case XK_Caps_Lock: keyevent->keycode = 66; break; + case XK_Num_Lock: keyevent->keycode = 77; break; + + /* Extended keyboard navigation keys */ + case XK_Home: keyevent->keycode = 110; break; + case XK_End: keyevent->keycode = 115; break; + case XK_Prior: keyevent->keycode = 112; break; + case XK_Next: keyevent->keycode = 117; break; + case XK_Delete: keyevent->keycode = 119; break; + + /* Numeric keypad keys */ + case XK_KP_Equal: keyevent->keycode = 125; break; + case XK_KP_Divide: keyevent->keycode = 106; break; + case XK_KP_Multiply: keyevent->keycode = 63; break; + case XK_KP_Subtract: keyevent->keycode = 82; break; + case XK_KP_Add: keyevent->keycode = 86; break; + case XK_KP_Enter: keyevent->keycode = 104; break; + case XK_KP_Decimal: keyevent->keycode = 91; break; + case XK_KP_0: keyevent->keycode = 90; break; + case XK_KP_1: keyevent->keycode = 87; break; + case XK_KP_2: keyevent->keycode = 88; break; + case XK_KP_3: keyevent->keycode = 89; break; + case XK_KP_4: keyevent->keycode = 83; break; + case XK_KP_5: keyevent->keycode = 84; break; + case XK_KP_6: keyevent->keycode = 85; break; + case XK_KP_7: keyevent->keycode = 79; break; + case XK_KP_8: keyevent->keycode = 80; break; + case XK_KP_9: keyevent->keycode = 81; break; + + + /* top row - function keys */ + case XK_Escape: keyevent->keycode = 9; break; + case XK_F1: keyevent->keycode = 67; break; + case XK_F2: keyevent->keycode = 68; break; + case XK_F3: keyevent->keycode = 69; break; + case XK_F4: keyevent->keycode = 70; break; + case XK_F5: keyevent->keycode = 71; break; + case XK_F6: keyevent->keycode = 72; break; + case XK_F7: keyevent->keycode = 73; break; + case XK_F8: keyevent->keycode = 74; break; + case XK_F9: keyevent->keycode = 75; break; + case XK_F10: keyevent->keycode = 76; break; + case XK_F11: keyevent->keycode = 95; break; + case XK_F12: keyevent->keycode = 96; break; + + /* Second row: numeric keys, 12345 */ + case XK_grave: keyevent->keycode = 49; break; + case XK_1: keyevent->keycode = 10; break; + case XK_2: keyevent->keycode = 11; break; + case XK_3: keyevent->keycode = 12; break; + case XK_4: keyevent->keycode = 13; break; + case XK_5: keyevent->keycode = 14; break; + case XK_6: keyevent->keycode = 15; break; + case XK_7: keyevent->keycode = 16; break; + case XK_8: keyevent->keycode = 17; break; + case XK_9: keyevent->keycode = 18; break; + case XK_0: keyevent->keycode = 19; break; + case XK_minus: keyevent->keycode = 20; break; + case XK_equal: keyevent->keycode = 21; break; + case XK_BackSpace: keyevent->keycode = 22; break; + + /* Third row: qwerty */ + case XK_Tab: keyevent->keycode = 23; break; + case XK_q: keyevent->keycode = 24; break; + case XK_w: keyevent->keycode = 25; break; + case XK_e: keyevent->keycode = 26; break; + case XK_r: keyevent->keycode = 27; break; + case XK_t: keyevent->keycode = 28; break; + case XK_y: keyevent->keycode = 29; break; + case XK_u: keyevent->keycode = 30; break; + case XK_i: keyevent->keycode = 31; break; + case XK_o: keyevent->keycode = 32; break; + case XK_p: keyevent->keycode = 33; break; + case XK_bracketleft: keyevent->keycode = 34; break; + case XK_bracketright: keyevent->keycode = 35; break; + case XK_backslash: keyevent->keycode = 51; break; + + /* Fourth row: asdf */ + case XK_a: keyevent->keycode = 38; break; + case XK_s: keyevent->keycode = 39; break; + case XK_d: keyevent->keycode = 40; break; + case XK_f: keyevent->keycode = 41; break; + case XK_g: keyevent->keycode = 42; break; + case XK_h: keyevent->keycode = 43; break; + case XK_j: keyevent->keycode = 44; break; + case XK_k: keyevent->keycode = 45; break; + case XK_l: keyevent->keycode = 46; break; + case XK_semicolon: keyevent->keycode = 47; break; + case XK_apostrophe: keyevent->keycode = 48; break; + case XK_Return: keyevent->keycode = 36; break; + + /* Fifth row: zxcv */ + case XK_z: keyevent->keycode = 52; break; + case XK_x: keyevent->keycode = 53; break; + case XK_c: keyevent->keycode = 54; break; + case XK_v: keyevent->keycode = 55; break; + case XK_b: keyevent->keycode = 56; break; + case XK_n: keyevent->keycode = 57; break; + case XK_m: keyevent->keycode = 58; break; + case XK_comma: keyevent->keycode = 59; break; + case XK_period: keyevent->keycode = 60; break; + case XK_slash: keyevent->keycode = 61; break; + + case XK_space: keyevent->keycode = 65; break; + + /* Arrow keys */ + case XK_Up: keyevent->keycode = 98; break; + case XK_Left: keyevent->keycode = 100; break; + case XK_Right: keyevent->keycode = 102; break; + case XK_Down: keyevent->keycode = 104; break; + + } + } + + return r; +} + +#ifdef DEBUG +KeyCode +XKeysymToKeycode(Display *display, KeySym keysym) +{ + KeyCode keycode; + + if (!hack_initialised) + hack_init(); + + keycode = real_XKeysymToKeycode(display, keysym); + + fprintf(fd, "XKeysymToKeycode: %d\n", keycode); + fflush(fd); + + return keycode; +} +#endif diff --git a/startapp.sh b/startapp.sh index 364afa5..9376177 100644 --- a/startapp.sh +++ b/startapp.sh @@ -93,4 +93,4 @@ cd /app echo "${GREEN}Initialization complete, starting virtual console${NC}" -exec java -cp avctKVM.jar -Djava.library.path="./lib" com.avocent.idrac.kvm.Main ip=${IDRAC_HOST} kmport=5900 vport=5900 user=${IDRAC_USER} passwd=${IDRAC_PASSWORD} apcp=1 version=2 vmprivilege=true "helpurl=https://${IDRAC_HOST}:443/help/contents.html" +LD_PRELOAD=/keycode-hack.so exec java -cp avctKVM.jar -Djava.library.path="./lib" com.avocent.idrac.kvm.Main ip=${IDRAC_HOST} kmport=5900 vport=5900 user=${IDRAC_USER} passwd=${IDRAC_PASSWORD} apcp=1 version=2 vmprivilege=true "helpurl=https://${IDRAC_HOST}:443/help/contents.html"