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Merge pull request #13 from maedoc/keycode-hack

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add keycode hack
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Dominik 2019-03-25 15:20:33 +01:00 committed by GitHub
commit 356ea9990d
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3 changed files with 235 additions and 2 deletions
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5
Dockerfile
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@ -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 && \

230
keycode-hack.c Normal file
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@ -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 <stdio.h>
#include <unistd.h>
#include <dlfcn.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
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

2
startapp.sh
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@ -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"