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Use uinput to control mouse and keyboard on Linux

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This commit is contained in:
dijunkun
2023-12-07 19:00:34 -08:00
parent 2d6cfb5c76
commit a8a3b88514
2 changed files with 132 additions and 4 deletions
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134
src/gui/main.cpp
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@@ -13,6 +13,8 @@
#include <sys/socket.h>
#include <sys/types.h>
#elif __linux__
#include <fcntl.h>
#include <linux/uinput.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
@@ -75,6 +77,9 @@ SDL_Rect sdlRect;
SDL_Window *window;
static SDL_AudioDeviceID input_dev;
static SDL_AudioDeviceID output_dev;
static int uinput_fd;
static int fd_mouse = -1;
static int fd_kbd = -1;
uint32_t start_time, end_time, elapsed_time;
uint32_t frame_count = 0;
@@ -398,6 +403,55 @@ void ClientReceiveAudioBuffer(const char *data, size_t size,
SDL_QueueAudio(output_dev, data, size);
}
void simulate_key(int fd, int kval) {
struct input_event event;
gettimeofday(&event.time, 0);
// <20><><EFBFBD><EFBFBD>kval<61><6C>
event.type = EV_KEY;
event.value = 1;
event.code = kval;
write(fd, &event, sizeof(event));
// ͬ<><CDAC><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ
event.type = EV_SYN;
event.value = 0;
event.code = SYN_REPORT;
write(fd, &event, sizeof(event));
memset(&event, 0, sizeof(event));
gettimeofday(&event.time, 0);
// <20>ɿ<EFBFBD>kval<61><6C>
event.type = EV_KEY;
event.value = 0;
event.code = kval;
write(fd, &event, sizeof(event));
// ͬ<><CDAC><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ
event.type = EV_SYN;
event.value = 0;
event.code = SYN_REPORT;
write(fd, &event, sizeof(event));
}
// <20><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>ģ<EFBFBD><C4A3>
void simulate_mouse(int fd, int rel_x, int rel_y) {
struct input_event event;
gettimeofday(&event.time, 0);
// x<><78><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
event.type = EV_REL;
event.value = rel_x;
event.code = REL_X;
write(fd, &event, sizeof(event));
// y<><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
event.type = EV_REL;
event.value = rel_y;
event.code = REL_Y;
write(fd, &event, sizeof(event));
// ͬ<><CDAC>
event.type = EV_SYN;
event.value = 0;
event.code = SYN_REPORT;
write(fd, &event, sizeof(event));
}
void ServerReceiveDataBuffer(const char *data, size_t size, const char *user_id,
size_t user_id_size) {
std::string user(user_id, user_id_size);
@@ -405,9 +459,9 @@ void ServerReceiveDataBuffer(const char *data, size_t size, const char *user_id,
RemoteAction remote_action;
memcpy(&remote_action, data, sizeof(remote_action));
// std::cout << "remote_action: " << remote_action.type << " "
// << remote_action.m.flag << " " << remote_action.m.x << " "
// << remote_action.m.y << std::endl;
std::cout << "remote_action: " << remote_action.type << " "
<< remote_action.m.flag << " " << remote_action.m.x << " "
<< remote_action.m.y << std::endl;
int mouse_pos_x = remote_action.m.x * screen_w / 1280;
int mouse_pos_y = remote_action.m.y * screen_h / 720;
@@ -469,6 +523,24 @@ void ServerReceiveDataBuffer(const char *data, size_t size, const char *user_id,
CGEventPost(kCGHIDEventTap, mouse_event);
CFRelease(mouse_event);
}
#elif __linux__
if (remote_action.type == ControlType::mouse) {
struct input_event event;
memset(&event, 0, sizeof(event));
gettimeofday(&event.time, NULL);
if (remote_action.m.flag == MouseFlag::left_down) {
simulate_key(fd_mouse, BTN_LEFT);
} else if (remote_action.m.flag == MouseFlag::left_up) {
simulate_key(fd_mouse, BTN_LEFT);
} else if (remote_action.m.flag == MouseFlag::right_down) {
simulate_key(fd_mouse, BTN_RIGHT);
} else if (remote_action.m.flag == MouseFlag::right_up) {
simulate_key(fd_mouse, BTN_RIGHT);
} else {
simulate_mouse(fd_mouse, mouse_pos_x, mouse_pos_y);
}
}
#endif
#endif
}
@@ -881,6 +953,57 @@ int main() {
screen_capture->Start();
#elif __linux__
{
uinput_fd = open("/dev/uinput", O_WRONLY | O_NDELAY);
if (uinput_fd < 0) {
perror("<EFBFBD>޷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> /dev/uinput");
return;
}
fd_kbd = open("/dev/input/event3", O_RDWR);
if (fd_kbd <= 0) {
printf("Can not open keyboard input file\n");
return;
}
fd_mouse = open("/dev/input/event2", O_RDWR);
if (fd_mouse <= 0) {
printf("Can not open mouse input file\n");
return;
}
// <20><><EFBFBD><EFBFBD>uinput<75>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
struct uinput_user_dev uidev;
ioctl(uinput_fd, UI_SET_EVBIT, EV_ABS);
ioctl(uinput_fd, UI_SET_ABSBIT, ABS_X);
ioctl(uinput_fd, UI_SET_ABSBIT, ABS_Y);
ioctl(uinput_fd, UI_SET_EVBIT, EV_KEY);
ioctl(uinput_fd, UI_SET_KEYBIT, BTN_LEFT);
ioctl(uinput_fd, UI_SET_KEYBIT, BTN_RIGHT);
ioctl(uinput_fd, UI_SET_KEYBIT, BTN_MIDDLE);
ioctl(uinput_fd, UI_SET_EVBIT, EV_REL);
ioctl(uinput_fd, UI_SET_RELBIT, REL_X);
ioctl(uinput_fd, UI_SET_RELBIT, REL_Y);
memset(&uidev, 0, sizeof(uidev));
strncpy(uidev.name, "Virtual Mouse", UINPUT_MAX_NAME_SIZE);
uidev.id.bustype = BUS_USB;
uidev.id.vendor = 0x1234; // <20>Զ<EFBFBD><D4B6>峧<EFBFBD><E5B3A7>ID
uidev.id.product = 0x5678; // <20>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>ƷID
uidev.absmin[ABS_X] = 0;
uidev.absmax[ABS_X] = 1280;
uidev.absfuzz[ABS_X] = 0;
uidev.absflat[ABS_X] = 0;
uidev.absmin[ABS_Y] = 0;
uidev.absmax[ABS_Y] = 720;
uidev.absfuzz[ABS_Y] = 0;
uidev.absflat[ABS_Y] = 0;
ioctl(uinput_fd, UI_DEV_SETUP, &uidev);
ioctl(uinput_fd, UI_DEV_CREATE);
}
screen_capture = new ScreenCaptureX11();
RECORD_DESKTOP_RECT rect;
@@ -1227,6 +1350,11 @@ int main() {
SDL_CloseAudioDevice(output_dev);
SDL_CloseAudioDevice(input_dev);
#ifdef __linux__
ioctl(uinput_fd, UI_DEV_DESTROY);
close(uinput_fd);
#endif
ImGui_ImplSDLRenderer2_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();

2
xmake.lua
View File

@@ -28,7 +28,7 @@ elseif is_os("linux") then
add_ldflags("-lavformat", "-lavdevice", "-lavfilter", "-lavcodec",
"-lswscale", "-lavutil", "-lswresample",
"-lasound", "-lxcb-shape", "-lxcb-xfixes", "-lsndio", "-lxcb",
"-lxcb-shm", "-lXext", "-lX11", "-lXv", "-ldl", "-lpthread",
"-lxcb-shm", "-lXext", "-lX11", "-lXv", "-ldl", "-lpthread",
{force = true})
elseif is_os("macosx") then
add_requires("ffmpeg 5.1.2", {system = false})