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Add FreeRDP backend for remote desktop support

This commit is contained in:
Drew DeVault 2019-02-22 13:58:52 -05:00
parent 9faea17c73
commit fd0d7d0907
16 changed files with 1335 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.builds/alpine.yml
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@ -1,6 +1,7 @@
image: alpine/edge
packages:
- eudev-dev
- freerdp-dev
- ffmpeg-dev
- libcap-dev
- libinput-dev

1
.builds/archlinux.yml
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@ -1,6 +1,7 @@
image: archlinux
packages:
- clang
- freerdp
- ffmpeg
- libcap
- libinput

39
backend/backend.c
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@ -21,6 +21,9 @@
#if WLR_HAS_X11_BACKEND
#include <wlr/backend/x11.h>
#endif
#if WLR_HAS_RDP_BACKEND
#include <wlr/backend/rdp.h>
#endif
void wlr_backend_init(struct wlr_backend *backend,
const struct wlr_backend_impl *impl) {
@ -134,6 +137,38 @@ static struct wlr_backend *attempt_headless_backend(
return backend;
}
#if WLR_HAS_RDP_BACKEND
static struct wlr_backend *attempt_rdp_backend(struct wl_display *display,
wlr_renderer_create_func_t create_renderer_func) {
const char *cert_path = getenv("WLR_RDP_TLS_CERT_PATH");
const char *key_path = getenv("WLR_RDP_TLS_KEY_PATH");
if (!cert_path || !key_path) {
wlr_log(WLR_ERROR, "The RDP backend requires WLR_RDP_TLS_CERT_PATH "
"and WLR_RDP_TLS_KEY_PATH to be set.");
return NULL;
}
struct wlr_backend *backend = wlr_rdp_backend_create(
display, create_renderer_func, cert_path, key_path);
const char *address = getenv("WLR_RDP_ADDRESS");
if (address) {
wlr_rdp_backend_set_address(backend, address);
}
const char *_port = getenv("WLR_RDP_PORT");
if (_port) {
char *endptr;
int port = strtol(_port, &endptr, 10);
if (*endptr || port <= 0 || port >= 1024) {
wlr_log(WLR_ERROR, "Expected WLR_RDP_PORT to be a "
"positive integer less than 1024");
wlr_backend_destroy(backend);
return NULL;
}
wlr_rdp_backend_set_port(backend, port);
}
return backend;
}
#endif
static struct wlr_backend *attempt_noop_backend(struct wl_display *display) {
struct wlr_backend *backend = wlr_noop_backend_create(display);
if (backend == NULL) {
@ -185,6 +220,10 @@ static struct wlr_backend *attempt_backend_by_name(struct wl_display *display,
#endif
} else if (strcmp(name, "headless") == 0) {
return attempt_headless_backend(display, create_renderer_func);
#if WLR_HAS_RDP_BACKEND
} else if (strcmp(name, "rdp") == 0) {
return attempt_rdp_backend(display, create_renderer_func);
#endif
} else if (strcmp(name, "noop") == 0) {
return attempt_noop_backend(display);
} else if (strcmp(name, "drm") == 0 || strcmp(name, "libinput") == 0) {

16
backend/meson.build
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@ -53,6 +53,22 @@ if logind.found()
backend_deps += logind
endif
if freerdp.found() and winpr2.found()
backend_files += files(
'rdp/backend.c',
'rdp/keyboard.c',
'rdp/listener.c',
'rdp/output.c',
'rdp/peer.c',
'rdp/pointer.c',
)
backend_deps += [
freerdp,
winpr2
]
conf_data.set10('WLR_HAS_RDP_BACKEND', true)
endif
subdir('x11')
lib_wlr_backend = static_library(

134
backend/rdp/backend.c Normal file
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@ -0,0 +1,134 @@
#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <wlr/render/egl.h>
#include <wlr/render/gles2.h>
#include <wlr/util/log.h>
#include "backend/rdp.h"
#include "glapi.h"
#include "util/signal.h"
struct wlr_rdp_backend *rdp_backend_from_backend(
struct wlr_backend *wlr_backend) {
assert(wlr_backend_is_rdp(wlr_backend));
return (struct wlr_rdp_backend *)wlr_backend;
}
static bool backend_start(struct wlr_backend *wlr_backend) {
struct wlr_rdp_backend *backend =
rdp_backend_from_backend(wlr_backend);
assert(backend->listener == NULL);
wlr_log(WLR_INFO, "Starting RDP backend");
if (!rdp_configure_listener(backend)) {
return false;
}
return true;
}
void wlr_rdp_backend_set_address(struct wlr_backend *wlr_backend,
const char *address) {
struct wlr_rdp_backend *backend =
rdp_backend_from_backend(wlr_backend);
assert(backend->listener == NULL);
backend->address = strdup(address);
}
void wlr_rdp_backend_set_port(struct wlr_backend *wlr_backend, int port) {
struct wlr_rdp_backend *backend =
rdp_backend_from_backend(wlr_backend);
assert(backend->listener == NULL);
backend->port = port;
}
static void backend_destroy(struct wlr_backend *wlr_backend) {
struct wlr_rdp_backend *backend =
rdp_backend_from_backend(wlr_backend);
if (!wlr_backend) {
return;
}
wl_list_remove(&backend->display_destroy.link);
struct wlr_rdp_peer_context *client;
wl_list_for_each(client, &backend->clients, link) {
freerdp_peer_context_free(client->peer);
freerdp_peer_free(client->peer);
}
wlr_signal_emit_safe(&wlr_backend->events.destroy, backend);
wlr_renderer_destroy(backend->renderer);
wlr_egl_finish(&backend->egl);
free(backend->address);
free(backend);
}
static struct wlr_renderer *backend_get_renderer(
struct wlr_backend *wlr_backend) {
struct wlr_rdp_backend *backend =
rdp_backend_from_backend(wlr_backend);
return backend->renderer;
}
static const struct wlr_backend_impl backend_impl = {
.start = backend_start,
.destroy = backend_destroy,
.get_renderer = backend_get_renderer,
};
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_rdp_backend *backend =
wl_container_of(listener, backend, display_destroy);
backend_destroy(&backend->backend);
}
struct wlr_backend *wlr_rdp_backend_create(struct wl_display *display,
wlr_renderer_create_func_t create_renderer_func,
const char *tls_cert_path, const char *tls_key_path) {
wlr_log(WLR_INFO, "Creating RDP backend");
struct wlr_rdp_backend *backend =
calloc(1, sizeof(struct wlr_rdp_backend));
if (!backend) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_rdp_backend");
return NULL;
}
wlr_backend_init(&backend->backend, &backend_impl);
backend->display = display;
backend->tls_cert_path = tls_cert_path;
backend->tls_key_path = tls_key_path;
backend->address = strdup("127.0.0.1");
backend->port = 3389;
wl_list_init(&backend->clients);
static const EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
EGL_ALPHA_SIZE, 0,
EGL_BLUE_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_RED_SIZE, 1,
EGL_NONE,
};
if (!create_renderer_func) {
create_renderer_func = wlr_renderer_autocreate;
}
backend->renderer = create_renderer_func(&backend->egl,
EGL_PLATFORM_SURFACELESS_MESA, NULL, (EGLint*)config_attribs, 0);
if (!backend->renderer) {
wlr_log(WLR_ERROR, "Failed to create renderer");
free(backend);
return NULL;
}
backend->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &backend->display_destroy);
return &backend->backend;
}
bool wlr_backend_is_rdp(struct wlr_backend *backend) {
return backend->impl == &backend_impl;
}

219
backend/rdp/keyboard.c Normal file
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@ -0,0 +1,219 @@
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_keyboard.h>
#include <wlr/interfaces/wlr_keyboard.h>
#include <wlr/interfaces/wlr_input_device.h>
#include <wlr/util/log.h>
#include <xkbcommon/xkbcommon.h>
#include "backend/rdp.h"
#include "util/signal.h"
struct rdp_to_xkb_keyboard_layout {
UINT32 rdp_layout_code;
const char *xkb_layout;
const char *xkb_variant;
};
/* table reversed from
https://github.com/awakecoding/FreeRDP/blob/master/libfreerdp/locale/xkb_layout_ids.c#L811 */
static struct rdp_to_xkb_keyboard_layout rdp_keyboards[] = {
{KBD_ARABIC_101, "ara", 0},
{KBD_BULGARIAN, 0, 0},
{KBD_CHINESE_TRADITIONAL_US, 0, 0},
{KBD_CZECH, "cz", 0},
{KBD_CZECH_PROGRAMMERS, "cz", "bksl"},
{KBD_CZECH_QWERTY, "cz", "qwerty"},
{KBD_DANISH, "dk", 0},
{KBD_GERMAN, "de", 0},
{KBD_GERMAN_NEO, "de", "neo"},
{KBD_GERMAN_IBM, "de", "qwerty"},
{KBD_GREEK, "gr", 0},
{KBD_GREEK_220, "gr", "simple"},
{KBD_GREEK_319, "gr", "extended"},
{KBD_GREEK_POLYTONIC, "gr", "polytonic"},
{KBD_US, "us", 0},
{KBD_US_ENGLISH_TABLE_FOR_IBM_ARABIC_238_L, "ara", "buckwalter"},
{KBD_SPANISH, "es", 0},
{KBD_SPANISH_VARIATION, "es", "nodeadkeys"},
{KBD_FINNISH, "fi", 0},
{KBD_FRENCH, "fr", 0},
{KBD_HEBREW, "il", 0},
{KBD_HUNGARIAN, "hu", 0},
{KBD_HUNGARIAN_101_KEY, "hu", "standard"},
{KBD_ICELANDIC, "is", 0},
{KBD_ITALIAN, "it", 0},
{KBD_ITALIAN_142, "it", "nodeadkeys"},
{KBD_JAPANESE, "jp", 0},
{KBD_JAPANESE_INPUT_SYSTEM_MS_IME2002, "jp", "kana"},
{KBD_KOREAN, "kr", 0},
{KBD_KOREAN_INPUT_SYSTEM_IME_2000, "kr", "kr104"},
{KBD_DUTCH, "nl", 0},
{KBD_NORWEGIAN, "no", 0},
{KBD_POLISH_PROGRAMMERS, "pl", 0},
{KBD_POLISH_214, "pl", "qwertz"},
{KBD_ROMANIAN, "ro", 0},
{KBD_RUSSIAN, "ru", 0},
{KBD_RUSSIAN_TYPEWRITER, "ru", "typewriter"},
{KBD_CROATIAN, "hr", 0},
{KBD_SLOVAK, "sk", 0},
{KBD_SLOVAK_QWERTY, "sk", "qwerty"},
{KBD_ALBANIAN, 0, 0},
{KBD_SWEDISH, "se", 0},
{KBD_THAI_KEDMANEE, "th", 0},
{KBD_THAI_KEDMANEE_NON_SHIFTLOCK, "th", "tis"},
{KBD_TURKISH_Q, "tr", 0},
{KBD_TURKISH_F, "tr", "f"},
{KBD_URDU, "in", "urd-phonetic3"},
{KBD_UKRAINIAN, "ua", 0},
{KBD_BELARUSIAN, "by", 0},
{KBD_SLOVENIAN, "si", 0},
{KBD_ESTONIAN, "ee", 0},
{KBD_LATVIAN, "lv", 0},
{KBD_LITHUANIAN_IBM, "lt", "ibm"},
{KBD_FARSI, "af", 0},
{KBD_VIETNAMESE, "vn", 0},
{KBD_ARMENIAN_EASTERN, "am", 0},
{KBD_AZERI_LATIN, 0, 0},
{KBD_FYRO_MACEDONIAN, "mk", 0},
{KBD_GEORGIAN, "ge", 0},
{KBD_FAEROESE, 0, 0},
{KBD_DEVANAGARI_INSCRIPT, 0, 0},
{KBD_MALTESE_47_KEY, 0, 0},
{KBD_NORWEGIAN_WITH_SAMI, "no", "smi"},
{KBD_KAZAKH, "kz", 0},
{KBD_KYRGYZ_CYRILLIC, "kg", "phonetic"},
{KBD_TATAR, "ru", "tt"},
{KBD_BENGALI, "bd", 0},
{KBD_BENGALI_INSCRIPT, "bd", "probhat"},
{KBD_PUNJABI, 0, 0},
{KBD_GUJARATI, "in", "guj"},
{KBD_TAMIL, "in", "tam"},
{KBD_TELUGU, "in", "tel"},
{KBD_KANNADA, "in", "kan"},
{KBD_MALAYALAM, "in", "mal"},
{KBD_HINDI_TRADITIONAL, "in", 0},
{KBD_MARATHI, 0, 0},
{KBD_MONGOLIAN_CYRILLIC, "mn", 0},
{KBD_UNITED_KINGDOM_EXTENDED, "gb", "intl"},
{KBD_SYRIAC, "syc", 0},
{KBD_SYRIAC_PHONETIC, "syc", "syc_phonetic"},
{KBD_NEPALI, "np", 0},
{KBD_PASHTO, "af", "ps"},
{KBD_DIVEHI_PHONETIC, 0, 0},
{KBD_LUXEMBOURGISH, 0, 0},
{KBD_MAORI, "mao", 0},
{KBD_CHINESE_SIMPLIFIED_US, 0, 0},
{KBD_SWISS_GERMAN, "ch", "de_nodeadkeys"},
{KBD_UNITED_KINGDOM, "gb", 0},
{KBD_LATIN_AMERICAN, "latam", 0},
{KBD_BELGIAN_FRENCH, "be", 0},
{KBD_BELGIAN_PERIOD, "be", "oss_sundeadkeys"},
{KBD_PORTUGUESE, "pt", 0},
{KBD_SERBIAN_LATIN, "rs", 0},
{KBD_AZERI_CYRILLIC, "az", "cyrillic"},
{KBD_SWEDISH_WITH_SAMI, "se", "smi"},
{KBD_UZBEK_CYRILLIC, "af", "uz"},
{KBD_INUKTITUT_LATIN, "ca", "ike"},
{KBD_CANADIAN_FRENCH_LEGACY, "ca", "fr-legacy"},
{KBD_SERBIAN_CYRILLIC, "rs", 0},
{KBD_CANADIAN_FRENCH, "ca", "fr-legacy"},
{KBD_SWISS_FRENCH, "ch", "fr"},
{KBD_BOSNIAN, "ba", 0},
{KBD_IRISH, 0, 0},
{KBD_BOSNIAN_CYRILLIC, "ba", "us"},
{KBD_UNITED_STATES_DVORAK, "us", "dvorak"},
{KBD_PORTUGUESE_BRAZILIAN_ABNT2, "br", "nativo"},
{KBD_CANADIAN_MULTILINGUAL_STANDARD, "ca", "multix"},
{KBD_GAELIC, "ie", "CloGaelach"},
{0x00000000, 0, 0},
};
/* taken from 2.2.7.1.6 Input Capability Set (TS_INPUT_CAPABILITYSET) */
static char *rdp_keyboard_types[] = {
"", /* 0: unused */
"", /* 1: IBM PC/XT or compatible (83-key) keyboard */
"", /* 2: Olivetti "ICO" (102-key) keyboard */
"", /* 3: IBM PC/AT (84-key) or similar keyboard */
"pc102",/* 4: IBM enhanced (101- or 102-key) keyboard */
"", /* 5: Nokia 1050 and similar keyboards */
"", /* 6: Nokia 9140 and similar keyboards */
"" /* 7: Japanese keyboard */
};
static void keyboard_destroy(struct wlr_input_device *wlr_device) {
struct wlr_rdp_keyboard *keyboard =
(struct wlr_rdp_keyboard *)wlr_device->keyboard;
xkb_keymap_unref(keyboard->keymap);
free(keyboard);
}
static struct wlr_input_device_impl input_device_impl = {
.destroy = keyboard_destroy,
};
struct wlr_rdp_input_device *wlr_rdp_keyboard_create(
struct wlr_rdp_backend *backend, rdpSettings *settings) {
struct wlr_rdp_input_device *device =
calloc(1, sizeof(struct wlr_rdp_input_device));
if (!device) {
wlr_log(WLR_ERROR, "Failed to allcoate RDP input device");
return NULL;
}
int vendor = 0;
int product = 0;
const char *name = "rdp";
struct wlr_input_device *wlr_device = &device->wlr_input_device;
wlr_input_device_init(wlr_device, WLR_INPUT_DEVICE_KEYBOARD,
&input_device_impl, name, vendor, product);
struct wlr_rdp_keyboard *keyboard =
calloc(1, sizeof(struct wlr_rdp_keyboard));
if (!keyboard) {
wlr_log(WLR_ERROR, "Failed to allocate RDP pointer device");
goto error;
}
wlr_device->keyboard = (struct wlr_keyboard *)keyboard;
wlr_keyboard_init(wlr_device->keyboard, NULL);
wlr_log(WLR_DEBUG, "RDP keyboard layout: 0x%x type: 0x%x subtype: 0x%x "
"function_keys 0x%x", settings->KeyboardLayout,
settings->KeyboardType, settings->KeyboardSubType,
settings->KeyboardFunctionKey);
// We need to set up an XKB context and jump through some hoops to convert
// RDP input events into scancodes
struct xkb_rule_names xkb_rule_names = { 0 };
if (settings->KeyboardType <= 7) {
xkb_rule_names.model = rdp_keyboard_types[settings->KeyboardType];
}
for (int i = 0; rdp_keyboards[i].rdp_layout_code; ++i) {
if (rdp_keyboards[i].rdp_layout_code == settings->KeyboardLayout) {
xkb_rule_names.layout = rdp_keyboards[i].xkb_layout;
xkb_rule_names.variant = rdp_keyboards[i].xkb_variant;
wlr_log(WLR_DEBUG, "Mapped RDP keyboard to xkb layout %s variant "
"%s", xkb_rule_names.layout, xkb_rule_names.variant);
break;
}
}
if (xkb_rule_names.layout) {
struct xkb_context *xkb_context = xkb_context_new(0);
if (!xkb_context) {
wlr_log(WLR_DEBUG, "Failed to allocate xkb context");
goto error;
}
keyboard->keymap =
xkb_keymap_new_from_names(xkb_context, &xkb_rule_names, 0);
xkb_context_unref(xkb_context);
}
wlr_keyboard_set_keymap(wlr_device->keyboard, keyboard->keymap);
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_device);
return device;
error:
wlr_input_device_destroy(wlr_device);
return NULL;
}

61
backend/rdp/listener.c Normal file
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@ -0,0 +1,61 @@
#include <stdlib.h>
#include <wlr/util/log.h>
#include "backend/rdp.h"
static int rdp_incoming_peer(
freerdp_listener *listener, freerdp_peer *client) {
struct wlr_rdp_backend *backend =
(struct wlr_rdp_backend *)listener->param4;
if (rdp_peer_init(client, backend) < 0) {
wlr_log(WLR_ERROR, "Error initializing incoming peer");
return false;
}
return true;
}
static int rdp_listener_activity(int fd, uint32_t mask, void *data) {
freerdp_listener *listener = data;
if (!(mask & WL_EVENT_READABLE)) {
return 0;
}
if (!listener->CheckFileDescriptor(listener)) {
wlr_log(WLR_ERROR, "Failed to check FreeRDP file descriptor");
return -1;
}
return 0;
}
bool rdp_configure_listener(struct wlr_rdp_backend *backend) {
backend->listener = freerdp_listener_new();
if (!backend->listener) {
wlr_log(WLR_ERROR, "Failed to allocate FreeRDP listener");
return false;
}
backend->listener->PeerAccepted = rdp_incoming_peer;
backend->listener->param4 = backend;
if (!backend->listener->Open(backend->listener,
backend->address, backend->port)) {
wlr_log(WLR_ERROR, "Failed to bind to RDP socket");
return false;
}
int rcount = 0;
void *rfds[MAX_FREERDP_FDS];
if (!backend->listener->GetFileDescriptor(
backend->listener, rfds, &rcount)) {
wlr_log(WLR_ERROR, "Failed to get FreeRDP file descriptors");
return false;
}
struct wl_event_loop *event_loop =
wl_display_get_event_loop(backend->display);
int i;
for (i = 0; i < rcount; ++i) {
int fd = (int)(long)(rfds[i]);
backend->listener_events[i] = wl_event_loop_add_fd(
event_loop, fd, WL_EVENT_READABLE, rdp_listener_activity,
backend->listener);
}
for (; i < MAX_FREERDP_FDS; ++i) {
backend->listener_events[i] = NULL;
}
return true;
}

288
backend/rdp/output.c Normal file
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@ -0,0 +1,288 @@
#include <assert.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/types/wlr_output.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/util/log.h>
#include <wlr/render/wlr_renderer.h>
#include "backend/rdp.h"
#include "util/signal.h"
static struct wlr_rdp_output *rdp_output_from_output(
struct wlr_output *wlr_output) {
assert(wlr_output_is_rdp(wlr_output));
return (struct wlr_rdp_output *)wlr_output;
}
static EGLSurface egl_create_surface(struct wlr_egl *egl, unsigned int width,
unsigned int height) {
EGLint attribs[] = {
EGL_WIDTH, width,
EGL_HEIGHT, height,
EGL_NONE,
};
EGLSurface surf = eglCreatePbufferSurface(egl->display, egl->config, attribs);
if (surf == EGL_NO_SURFACE) {
wlr_log(WLR_ERROR, "Failed to create EGL surface");
return EGL_NO_SURFACE;
}
return surf;
}
static bool output_set_custom_mode(struct wlr_output *wlr_output, int32_t width,
int32_t height, int32_t refresh) {
struct wlr_rdp_output *output =
rdp_output_from_output(wlr_output);
struct wlr_rdp_backend *backend = output->backend;
if (refresh <= 0) {
refresh = 60 * 1000; // 60 Hz
}
wlr_egl_destroy_surface(&backend->egl, output->egl_surface);
output->egl_surface = egl_create_surface(&backend->egl, width, height);
if (output->egl_surface == EGL_NO_SURFACE) {
wlr_log(WLR_ERROR, "Failed to recreate EGL surface");
wlr_output_destroy(wlr_output);
return false;
}
output->frame_delay = 1000000 / refresh;
if (output->shadow_surface) {
pixman_image_unref(output->shadow_surface);
}
output->shadow_surface = pixman_image_create_bits(PIXMAN_x8r8g8b8,
width, height, NULL, width * 4);
wlr_output_update_custom_mode(&output->wlr_output, width, height, refresh);
return true;
}
static void output_transform(struct wlr_output *wlr_output,
enum wl_output_transform transform) {
struct wlr_rdp_output *output =
rdp_output_from_output(wlr_output);
output->wlr_output.transform = transform;
}
static bool output_make_current(struct wlr_output *wlr_output, int *buffer_age) {
struct wlr_rdp_output *output =
rdp_output_from_output(wlr_output);
return wlr_egl_make_current(&output->backend->egl, output->egl_surface,
buffer_age);
}
static bool rfx_swap_buffers(
struct wlr_rdp_output *output, pixman_region32_t *damage) {
struct wlr_rdp_peer_context *context = output->context;
freerdp_peer *peer = context->peer;
rdpUpdate *update = peer->update;
Stream_Clear(context->encode_stream);
Stream_SetPosition(context->encode_stream, 0);
int width = damage->extents.x2 - damage->extents.x1;
int height = damage->extents.y2 - damage->extents.y1;
SURFACE_BITS_COMMAND cmd;
cmd.skipCompression = TRUE;
cmd.destLeft = damage->extents.x1;
cmd.destTop = damage->extents.y1;
cmd.destRight = damage->extents.x2;
cmd.destBottom = damage->extents.y2;
cmd.bmp.bpp = pixman_image_get_depth(output->shadow_surface);
cmd.bmp.codecID = peer->settings->RemoteFxCodecId;
cmd.bmp.width = width;
cmd.bmp.height = height;
uint32_t *ptr = pixman_image_get_data(output->shadow_surface) +
damage->extents.x1 + damage->extents.y1 *
(pixman_image_get_stride(output->shadow_surface) / sizeof(uint32_t));
RFX_RECT *rfx_rect;
int nrects;
pixman_box32_t *rects =
pixman_region32_rectangles(damage, &nrects);
rfx_rect = realloc(context->rfx_rects, nrects * sizeof(*rfx_rect));
if (rfx_rect == NULL) {
wlr_log(WLR_ERROR, "RDP swap buffers failed: could not realloc rects");
return false;
}
context->rfx_rects = rfx_rect;
for (int i = 0; i < nrects; ++i) {
pixman_box32_t *region = &rects[i];
rfx_rect = &context->rfx_rects[i];
rfx_rect->x = region->x1 - damage->extents.x1;
rfx_rect->y = region->y1 - damage->extents.y1;
rfx_rect->width = region->x2 - region->x1;
rfx_rect->height = region->y2 - region->y1;
}
rfx_compose_message(context->rfx_context, context->encode_stream,
context->rfx_rects, nrects, (BYTE *)ptr, width, height,
pixman_image_get_stride(output->shadow_surface));
cmd.bmp.bitmapDataLength = Stream_GetPosition(context->encode_stream);
cmd.bmp.bitmapData = Stream_Buffer(context->encode_stream);
update->SurfaceBits(update->context, &cmd);
return true;
}
static bool nsc_swap_buffers(
struct wlr_rdp_output *output, pixman_region32_t *damage) {
struct wlr_rdp_peer_context *context = output->context;
freerdp_peer *peer = context->peer;
rdpUpdate *update = peer->update;
Stream_Clear(context->encode_stream);
Stream_SetPosition(context->encode_stream, 0);
int width = damage->extents.x2 - damage->extents.x1;
int height = damage->extents.y2 - damage->extents.y1;
SURFACE_BITS_COMMAND cmd;
cmd.skipCompression = TRUE;
cmd.destLeft = damage->extents.x1;
cmd.destTop = damage->extents.y1;
cmd.destRight = damage->extents.x2;
cmd.destBottom = damage->extents.y2;
cmd.bmp.bpp = pixman_image_get_depth(output->shadow_surface);
cmd.bmp.codecID = peer->settings->NSCodecId;
cmd.bmp.width = width;
cmd.bmp.height = height;
uint32_t *ptr = pixman_image_get_data(output->shadow_surface) +
damage->extents.x1 + damage->extents.y1 *
(pixman_image_get_stride(output->shadow_surface) / sizeof(uint32_t));
nsc_compose_message(context->nsc_context, context->encode_stream,
(BYTE *)ptr, width, height,
pixman_image_get_stride(output->shadow_surface));
cmd.bmp.bitmapDataLength = Stream_GetPosition(context->encode_stream);
cmd.bmp.bitmapData = Stream_Buffer(context->encode_stream);
update->SurfaceBits(update->context, &cmd);
return true;
}
static bool output_swap_buffers(
struct wlr_output *wlr_output, pixman_region32_t *damage) {
if (!pixman_region32_not_empty(damage)) {
return true;
}
struct wlr_rdp_output *output =
rdp_output_from_output(wlr_output);
// Update shadow buffer
int width = damage->extents.x2 - damage->extents.x1;
int height = damage->extents.y2 - damage->extents.y1;
struct wlr_renderer *renderer =
wlr_backend_get_renderer(&output->backend->backend);
// TODO performance: add support for flags
if (!wlr_renderer_read_pixels(renderer, WL_SHM_FORMAT_XRGB8888,
NULL, pixman_image_get_stride(output->shadow_surface),
width, height, damage->extents.x1, damage->extents.y1,
damage->extents.x1, damage->extents.y1,
pixman_image_get_data(output->shadow_surface))) {
return false;
}
// Send along to clients
bool ret = false;
rdpSettings *settings = output->context->peer->settings;
if (settings->RemoteFxCodec) {
ret = rfx_swap_buffers(output, damage);
} else if (settings->NSCodec) {
ret = nsc_swap_buffers(output, damage);
} else {
// This would perform like ass so why bother
wlr_log(WLR_ERROR, "Raw updates are not supported; use rfx or nsc");
}
wlr_output_send_present(wlr_output, NULL);
return ret;
}
static void output_destroy(struct wlr_output *wlr_output) {
struct wlr_rdp_output *output =
rdp_output_from_output(wlr_output);
if (output->frame_timer) {
wl_event_source_remove(output->frame_timer);
}
wlr_egl_destroy_surface(&output->backend->egl, output->egl_surface);
if (output->shadow_surface) {
pixman_image_unref(output->shadow_surface);
}
free(output);
}
static const struct wlr_output_impl output_impl = {
.set_custom_mode = output_set_custom_mode,
.transform = output_transform,
.destroy = output_destroy,
.make_current = output_make_current,
.swap_buffers = output_swap_buffers,
};
bool wlr_output_is_rdp(struct wlr_output *wlr_output) {
return wlr_output->impl == &output_impl;
}
static int signal_frame(void *data) {
struct wlr_rdp_output *output = data;
wlr_output_send_frame(&output->wlr_output);
wl_event_source_timer_update(output->frame_timer, output->frame_delay);
return 0;
}
struct wlr_rdp_output *wlr_rdp_output_create(struct wlr_rdp_backend *backend,
struct wlr_rdp_peer_context *context, unsigned int width,
unsigned int height) {
struct wlr_rdp_output *output =
calloc(1, sizeof(struct wlr_rdp_output));
if (output == NULL) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_rdp_output");
return NULL;
}
output->backend = backend;
output->context = context;
wlr_output_init(&output->wlr_output, &backend->backend, &output_impl,
backend->display);
struct wlr_output *wlr_output = &output->wlr_output;
output->egl_surface = egl_create_surface(&backend->egl, width, height);
if (output->egl_surface == EGL_NO_SURFACE) {
wlr_log(WLR_ERROR, "Failed to create EGL surface");
goto error;
}
output_set_custom_mode(wlr_output, width, height, 0);
strncpy(wlr_output->make, "RDP", sizeof(wlr_output->make));
strncpy(wlr_output->model, "RDP", sizeof(wlr_output->model));
snprintf(wlr_output->name, sizeof(wlr_output->name), "RDP-%d",
wl_list_length(&backend->clients));
if (!wlr_egl_make_current(&output->backend->egl, output->egl_surface,
NULL)) {
goto error;
}
wlr_renderer_begin(backend->renderer, wlr_output->width, wlr_output->height);
wlr_renderer_clear(backend->renderer, (float[]){ 1.0, 1.0, 1.0, 1.0 });
wlr_renderer_end(backend->renderer);
struct wl_event_loop *ev = wl_display_get_event_loop(backend->display);
output->frame_timer = wl_event_loop_add_timer(ev, signal_frame, output);
wl_event_source_timer_update(output->frame_timer, output->frame_delay);
wlr_output_update_enabled(wlr_output, true);
wlr_signal_emit_safe(&backend->backend.events.new_output, wlr_output);
return output;
error:
wlr_output_destroy(&output->wlr_output);
return NULL;
}

360
backend/rdp/peer.c Normal file
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@ -0,0 +1,360 @@
#define _POSIX_C_SOURCE 200809L
#include <linux/input.h>
#include <stdlib.h>
#include <string.h>
#include <wlr/types/wlr_output.h>
#include <wlr/interfaces/wlr_input_device.h>
#include <wlr/interfaces/wlr_keyboard.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/util/log.h>
#include "backend/rdp.h"
#include "util/signal.h"
static BOOL xf_peer_capabilities(freerdp_peer *client) {
return TRUE;
}
static BOOL xf_peer_post_connect(freerdp_peer *client) {
return TRUE;
}
static BOOL xf_peer_activate(freerdp_peer *client) {
struct wlr_rdp_peer_context *context =
(struct wlr_rdp_peer_context *)client->context;
struct wlr_rdp_backend *backend = context->backend;
rdpSettings *settings = client->settings;
if (!settings->SurfaceCommandsEnabled) {
wlr_log(WLR_ERROR, "RDP peer does not support SurfaceCommands");
return FALSE;
}
context->output = wlr_rdp_output_create(backend, context,
(int)settings->DesktopWidth, (int)settings->DesktopHeight);
if (!context->output) {
wlr_log(WLR_ERROR, "Failed to allcoate output for RDP peer");
return FALSE;
}
rfx_context_reset(context->rfx_context,
context->output->wlr_output.width,
context->output->wlr_output.height);
nsc_context_reset(context->nsc_context,
context->output->wlr_output.width,
context->output->wlr_output.height);
if (context->flags & RDP_PEER_ACTIVATED) {
return TRUE;
}
context->pointer = wlr_rdp_pointer_create(backend, context);
if (!context->pointer) {
wlr_log(WLR_ERROR, "Failed to allocate pointer for RDP peer");
return FALSE;
}
// Use wlroots' software cursors instead of remote cursors
POINTER_SYSTEM_UPDATE pointer_system;
rdpPointerUpdate *pointer = client->update->pointer;
pointer_system.type = SYSPTR_NULL;
pointer->PointerSystem(client->context, &pointer_system);
context->keyboard = wlr_rdp_keyboard_create(backend, settings);
if (!context->keyboard) {
wlr_log(WLR_ERROR, "Failed to allocate keyboard for RDP peer");
return FALSE;
}
context->flags |= RDP_PEER_ACTIVATED;
return TRUE;
}
static int xf_suppress_output(rdpContext *context,
BYTE allow, const RECTANGLE_16 *area) {
struct wlr_rdp_peer_context *peer_context =
(struct wlr_rdp_peer_context *)context;
if (allow) {
peer_context->flags |= RDP_PEER_OUTPUT_ENABLED;
} else {
peer_context->flags &= ~RDP_PEER_OUTPUT_ENABLED;
}
return true;
}
static int xf_input_synchronize_event(rdpInput *input, UINT32 flags) {
struct wlr_rdp_peer_context *context =
(struct wlr_rdp_peer_context *)input->context;
wlr_output_damage_whole(&context->output->wlr_output);
return true;
}
static inline int64_t timespec_to_msec(const struct timespec *a) {
return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
}
static int xf_input_mouse_event(rdpInput *input,
UINT16 flags, UINT16 x, UINT16 y) {
struct wlr_rdp_peer_context *context =
(struct wlr_rdp_peer_context *)input->context;
struct wlr_input_device *wlr_device = &context->pointer->wlr_input_device;
struct wlr_pointer *pointer = wlr_device->pointer;
bool frame = false;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
if (flags & PTR_FLAGS_MOVE) {
struct wlr_event_pointer_motion_absolute event = { 0 };
event.device = wlr_device;
event.time_msec = timespec_to_msec(&now);
event.x = x / (double)context->output->wlr_output.width;
event.y = y / (double)context->output->wlr_output.height;
wlr_signal_emit_safe(&pointer->events.motion_absolute, &event);
frame = true;
}
uint32_t button = 0;
if (flags & PTR_FLAGS_BUTTON1) {
button = BTN_LEFT;
} else if (flags & PTR_FLAGS_BUTTON2) {
button = BTN_RIGHT;
} else if (flags & PTR_FLAGS_BUTTON3) {
button = BTN_MIDDLE;
}
if (button) {
struct wlr_event_pointer_button event = { 0 };
event.device = wlr_device;
event.time_msec = timespec_to_msec(&now);
event.button = button;
event.state = (flags & PTR_FLAGS_DOWN) ?
WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED;
wlr_signal_emit_safe(&pointer->events.button, &event);
frame = true;
}
if (flags & PTR_FLAGS_WHEEL) {
double value = -(flags & 0xFF) / 120.0;
if (flags & PTR_FLAGS_WHEEL_NEGATIVE) {
value = -value;
}
struct wlr_event_pointer_axis event = { 0 };
event.device = &context->pointer->wlr_input_device;
event.time_msec = timespec_to_msec(&now);
event.source = WLR_AXIS_SOURCE_WHEEL;
event.orientation = WLR_AXIS_ORIENTATION_VERTICAL;
event.delta = value;
event.delta_discrete = (int32_t)value;
wlr_signal_emit_safe(&pointer->events.axis, &event);
frame = true;
}
if (frame) {
wlr_signal_emit_safe(&pointer->events.frame, pointer);
}
return true;
}
static int xf_input_extended_mouse_event(
rdpInput *input, UINT16 flags, UINT16 x, UINT16 y) {
struct wlr_rdp_peer_context *context =
(struct wlr_rdp_peer_context *)input->context;
struct wlr_input_device *wlr_device = &context->pointer->wlr_input_device;
struct wlr_pointer *pointer = wlr_device->pointer;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
struct wlr_event_pointer_motion_absolute event = { 0 };
event.device = wlr_device;
event.time_msec = timespec_to_msec(&now);
event.x = x / (double)context->output->wlr_output.width;
event.y = y / (double)context->output->wlr_output.height;
wlr_signal_emit_safe(&pointer->events.motion_absolute, &event);
wlr_signal_emit_safe(&pointer->events.frame, pointer);
return true;
}
static int xf_input_keyboard_event(rdpInput *input, UINT16 flags, UINT16 code) {
struct wlr_rdp_peer_context *context =
(struct wlr_rdp_peer_context *)input->context;
struct wlr_input_device *wlr_device = &context->keyboard->wlr_input_device;
struct wlr_keyboard *keyboard = wlr_device->keyboard;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
if (!(context->flags & RDP_PEER_ACTIVATED)) {
return true;
}
bool notify = false;
enum wlr_key_state state;
if ((flags & KBD_FLAGS_DOWN)) {
state = WLR_KEY_PRESSED;
notify = true;
} else if ((flags & KBD_FLAGS_RELEASE)) {
state = WLR_KEY_RELEASED;
notify = true;
}
if (notify) {
uint32_t full_code = code;
if (flags & KBD_FLAGS_EXTENDED) {
full_code |= KBD_FLAGS_EXTENDED;
}
uint32_t vk_code = GetVirtualKeyCodeFromVirtualScanCode(full_code, 4);
if (flags & KBD_FLAGS_EXTENDED) {
vk_code |= KBDEXT;
}
uint32_t scan_code = GetKeycodeFromVirtualKeyCode(
vk_code, KEYCODE_TYPE_EVDEV);
struct wlr_event_keyboard_key event = { 0 };
event.time_msec = timespec_to_msec(&now);
event.keycode = scan_code - 8;
event.state = state;
event.update_state = true;
wlr_keyboard_notify_key(keyboard, &event);
}
return true;
}
static int xf_input_unicode_keyboard_event(rdpInput *input,
UINT16 flags, UINT16 code) {
wlr_log(WLR_DEBUG, "Unhandled RDP unicode keyboard event "
"(flags:0x%X code:0x%X)\n", flags, code);
return true;
}
static int rdp_client_activity(int fd, uint32_t mask, void *data) {
freerdp_peer *client = (freerdp_peer *)data;
if (!client->CheckFileDescriptor(client)) {
wlr_log(WLR_ERROR,
"Unable to check client file descriptor for %p", client);
freerdp_peer_context_free(client);
freerdp_peer_free(client);
}
return 0;
}
static int rdp_peer_context_new(
freerdp_peer *client, struct wlr_rdp_peer_context *context) {
context->peer = client;
context->flags = RDP_PEER_OUTPUT_ENABLED;
context->rfx_context = rfx_context_new(TRUE);
if (!context->rfx_context) {
return false;
}
context->rfx_context->mode = RLGR3;
context->rfx_context->width = client->settings->DesktopWidth;
context->rfx_context->height = client->settings->DesktopHeight;
rfx_context_set_pixel_format(context->rfx_context, PIXEL_FORMAT_BGRA32);
context->nsc_context = nsc_context_new();
if (!context->nsc_context) {
rfx_context_free(context->rfx_context);
return false;
}
nsc_context_set_pixel_format(context->nsc_context, PIXEL_FORMAT_BGRA32);
context->encode_stream = Stream_New(NULL, 65536);
if (!context->encode_stream) {
nsc_context_free(context->nsc_context);
rfx_context_free(context->rfx_context);
return false;
}
return true;
}
static void rdp_peer_context_free(
freerdp_peer *client, struct wlr_rdp_peer_context *context) {
if (!context) {
return;
}
for (int i = 0; i < MAX_FREERDP_FDS; ++i) {
if (context->events[i]) {
wl_event_source_remove(context->events[i]);
}
}
if (context->flags & RDP_PEER_ACTIVATED) {
wlr_output_destroy(&context->output->wlr_output);
wlr_input_device_destroy(&context->pointer->wlr_input_device);
wlr_input_device_destroy(&context->keyboard->wlr_input_device);
}
wl_list_remove(&context->link);
wlr_output_destroy(&context->output->wlr_output);
Stream_Free(context->encode_stream, TRUE);
nsc_context_free(context->nsc_context);
rfx_context_free(context->rfx_context);
free(context->rfx_rects);
}
int rdp_peer_init(freerdp_peer *client,
struct wlr_rdp_backend *backend) {
client->ContextSize = sizeof(struct wlr_rdp_peer_context);
client->ContextNew = (psPeerContextNew)rdp_peer_context_new;
client->ContextFree = (psPeerContextFree)rdp_peer_context_free;
freerdp_peer_context_new(client);
struct wlr_rdp_peer_context *peer_context =
(struct wlr_rdp_peer_context *)client->context;
peer_context->backend = backend;
client->settings->CertificateFile = strdup(backend->tls_cert_path);
client->settings->PrivateKeyFile = strdup(backend->tls_key_path);
client->settings->NlaSecurity = FALSE;
if (!client->Initialize(client)) {
wlr_log(WLR_ERROR, "Failed to initialize FreeRDP peer");
goto err_init;
}
client->settings->OsMajorType = OSMAJORTYPE_UNIX;
client->settings->OsMinorType = OSMINORTYPE_PSEUDO_XSERVER;
client->settings->ColorDepth = 32;
client->settings->RefreshRect = TRUE;
client->settings->RemoteFxCodec = TRUE;
client->settings->NSCodec = TRUE;
client->settings->FrameMarkerCommandEnabled = TRUE;
client->settings->SurfaceFrameMarkerEnabled = TRUE;
client->Capabilities = xf_peer_capabilities;
client->PostConnect = xf_peer_post_connect;
client->Activate = xf_peer_activate;
client->update->SuppressOutput = (pSuppressOutput)xf_suppress_output;
client->input->SynchronizeEvent = xf_input_synchronize_event;
client->input->MouseEvent = xf_input_mouse_event;
client->input->ExtendedMouseEvent = xf_input_extended_mouse_event;
client->input->KeyboardEvent = xf_input_keyboard_event;
client->input->UnicodeKeyboardEvent = xf_input_unicode_keyboard_event;
int rcount = 0;
void *rfds[MAX_FREERDP_FDS];
if (!client->GetFileDescriptor(client, rfds, &rcount)) {
wlr_log(WLR_ERROR, "Unable to retrieve client file descriptors");
goto err_init;
}
struct wl_event_loop *event_loop =
wl_display_get_event_loop(backend->display);
int i;
for (i = 0; i < rcount; ++i) {
int fd = (int)(long)(rfds[i]);
peer_context->events[i] = wl_event_loop_add_fd(
event_loop, fd, WL_EVENT_READABLE, rdp_client_activity,
client);
}
for (; i < MAX_FREERDP_FDS; ++i) {
peer_context->events[i] = NULL;
}
wl_list_insert(&backend->clients, &peer_context->link);
return 0;
err_init:
client->Close(client);
return -1;
}

40
backend/rdp/pointer.c Normal file
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@ -0,0 +1,40 @@
#define _POSIX_C_SOURCE 200809L
#include <stdlib.h>
#include <string.h>
#include <wayland-server.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_pointer.h>
#include <wlr/interfaces/wlr_pointer.h>
#include <wlr/interfaces/wlr_input_device.h>
#include <wlr/util/log.h>
#include "backend/rdp.h"
#include "util/signal.h"
static struct wlr_input_device_impl input_device_impl = { 0 };
struct wlr_rdp_input_device *wlr_rdp_pointer_create(
struct wlr_rdp_backend *backend, struct wlr_rdp_peer_context *context) {
struct wlr_rdp_input_device *device =
calloc(1, sizeof(struct wlr_rdp_input_device));
if (!device) {
wlr_log(WLR_ERROR, "Failed to allocate RDP input device");
return NULL;
}
int vendor = 0;
int product = 0;
const char *name = "rdp";
struct wlr_input_device *wlr_device = &device->wlr_input_device;
wlr_input_device_init(wlr_device, WLR_INPUT_DEVICE_POINTER,
&input_device_impl, name, vendor, product);
if (!(wlr_device->pointer = calloc(1, sizeof(struct wlr_pointer)))) {
wlr_log(WLR_ERROR, "Failed to allocate RDP pointer device");
return NULL;
}
wlr_device->output_name = strdup(context->output->wlr_output.name);
wlr_pointer_init(wlr_device->pointer, NULL);
wlr_signal_emit_safe(&backend->backend.events.new_input, wlr_device);
return device;
}

51
docs/env_vars.md
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@ -1,7 +1,7 @@
wlroots reads these environment variables
wlroots specific
----------------
# wlroots specific
* *WLR_DRM_DEVICES*: specifies the DRM devices (as a colon separated list)
instead of auto probing them. The first existing device in this list is
considered the primary DRM device.
@ -12,23 +12,54 @@ wlroots specific
* *WLR_LIBINPUT_NO_DEVICES*: set to 1 to not fail without any input devices
* *WLR_BACKENDS*: comma-separated list of backends to use (available backends:
wayland, x11, headless, noop)
* *WLR_WL_OUTPUTS*: when using the wayland backend specifies the number of outputs
* *WLR_X11_OUTPUTS*: when using the X11 backend specifies the number of outputs
* *WLR_HEADLESS_OUTPUTS*: when using the headless backend specifies the number
of outputs
* *WLR_NO_HARDWARE_CURSORS*: set to 1 to use software cursors instead of
hardware cursors
* *WLR_SESSION*: specifies the wlr\_session to be used (available sessions:
logind/systemd, direct)
* *WLR_DIRECT_TTY*: specifies the tty to be used (instead of using /dev/tty)
rootston specific
------------------
# Headless backend
* *WLR_HEADLESS_OUTPUTS*: when using the headless backend specifies the number
of outputs
# RDP backend
* *WLR_RDP_TLS_CERT_PATH*: required when using `wlr_backend_autocreate`,
specifies the path to the TLS certificate to use for encrypting connections
* *WLR_RDP_TLS_KEY_PATH*: required when using `wlr_backend_autocreate`,
specifies the path to the TLS private key to use for encrypting connections
* *WLR_RDP_ADDRESS*: the IP address to bind to, defaults to `127.0.0.1`
* *WLR_RDP_PORT*: the port to bind to, defaults to 3389.
Note: a TLS certificate and key can be generated like so:
```
$ openssl genrsa -out tls.key 2048
$ openssl req -new -key tls.key -out tls.csr
$ openssl x509 -req -days 365 -signkey tls.key -in tls.csr -out tls.crt
```
`tls.csr` can be discarded. Connecting to the RDP backend with xfreedrp can be
done like so:
xfreerdp -v localhost --bpp 32 --size 1920x1080 --rfx
# Wayland backend
* *WLR_WL_OUTPUTS*: when using the wayland backend specifies the number of outputs
# X11 backend
* *WLR_X11_OUTPUTS*: when using the X11 backend specifies the number of outputs
# Rootston specific
* *XKB_DEFAULT_RULES*, *XKB_DEFAULT_MODEL*, *XKB_DEFAULT_LAYOUT*,
*XKB_DEFAULT_VARIANT*, *XKB_DEFAULT_OPTIONS*: xkb setup
generic
-------
# Generic
* *DISPLAY*: if set probe X11 backend in *wlr_backend_autocreate*
* *WAYLAND_DISPLAY*, *_WAYLAND_DISPLAY*, *WAYLAND_SOCKET*: if set probe Wayland
backend in *wlr_backend_autocreate*

98
include/backend/rdp.h Normal file
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@ -0,0 +1,98 @@
#ifndef BACKEND_RDP_H
#define BACKEND_RDP_H
#include <freerdp/codec/color.h>
#include <freerdp/codec/nsc.h>
#include <freerdp/codec/rfx.h>
#include <freerdp/freerdp.h>
#include <freerdp/input.h>
#include <freerdp/listener.h>
#include <freerdp/locale/keyboard.h>
#include <freerdp/update.h>
#include <pixman.h>
#include <wlr/backend/interface.h>
#include <wlr/backend/rdp.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_pointer.h>
#include <xkbcommon/xkbcommon.h>
#define MAX_FREERDP_FDS 64
struct wlr_rdp_peer_context;
struct wlr_rdp_output {
struct wlr_output wlr_output;
struct wlr_rdp_backend *backend;
struct wlr_rdp_peer_context *context;
void *egl_surface;
pixman_image_t *shadow_surface;
struct wl_event_source *frame_timer;
int frame_delay; // ms
};
struct wlr_rdp_input_device {
struct wlr_input_device wlr_input_device;
};
struct wlr_rdp_keyboard {
struct wlr_keyboard keyboard;
struct xkb_keymap *keymap;
};
enum wlr_rdp_peer_flags {
RDP_PEER_ACTIVATED = 1 << 0,
RDP_PEER_OUTPUT_ENABLED = 1 << 1,
};
struct wlr_rdp_peer_context {
rdpContext _p;
struct wlr_rdp_backend *backend;
struct wl_event_source *events[MAX_FREERDP_FDS];
freerdp_peer *peer;
uint32_t flags;
RFX_CONTEXT *rfx_context;
wStream *encode_stream;
RFX_RECT *rfx_rects;
NSC_CONTEXT *nsc_context;
struct wlr_rdp_output *output;
struct wlr_rdp_input_device *pointer;
struct wlr_rdp_input_device *keyboard;
struct wl_list link;
};
struct wlr_rdp_backend {
struct wlr_backend backend;
struct wlr_egl egl;
struct wlr_renderer *renderer;
struct wl_display *display;
struct wl_listener display_destroy;
const char *tls_cert_path;
const char *tls_key_path;
char *address;
int port;
freerdp_listener *listener;
struct wl_event_source *listener_events[MAX_FREERDP_FDS];
struct wl_list clients;
};
struct wlr_rdp_backend *rdp_backend_from_backend(
struct wlr_backend *wlr_backend);
bool rdp_configure_listener(struct wlr_rdp_backend *backend);
int rdp_peer_init(freerdp_peer *client, struct wlr_rdp_backend *backend);
struct wlr_rdp_output *wlr_rdp_output_create(struct wlr_rdp_backend *backend,
struct wlr_rdp_peer_context *context, unsigned int width,
unsigned int height);
struct wlr_rdp_input_device *wlr_rdp_pointer_create(
struct wlr_rdp_backend *backend, struct wlr_rdp_peer_context *context);
struct wlr_rdp_input_device *wlr_rdp_keyboard_create(
struct wlr_rdp_backend *backend, rdpSettings *settings);
#endif

31
include/wlr/backend/rdp.h Normal file
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@ -0,0 +1,31 @@
/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_BACKEND_RDP_H
#define WLR_BACKEND_RDP_H
#include <wlr/backend.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_output.h>
/**
* Creates an RDP backend. An RDP backend will create one output, keyboard, and
* pointer for each client that connects.
*/
struct wlr_backend *wlr_rdp_backend_create(struct wl_display *display,
wlr_renderer_create_func_t create_renderer_func,
const char *tls_cert_path, const char *tls_key_path);
void wlr_rdp_backend_set_address(struct wlr_backend *wlr_backend,
const char *address);
void wlr_rdp_backend_set_port(struct wlr_backend *wlr_backend, int port);
bool wlr_backend_is_rdp(struct wlr_backend *backend);
bool wlr_input_device_is_rdp(struct wlr_input_device *device);
bool wlr_output_is_rdp(struct wlr_output *output);
#endif

1
include/wlr/config.h.in
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@ -7,6 +7,7 @@
#mesondefine WLR_HAS_ELOGIND
#mesondefine WLR_HAS_X11_BACKEND
#mesondefine WLR_HAS_RDP_BACKEND
#mesondefine WLR_HAS_XWAYLAND

4
meson.build
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@ -45,6 +45,7 @@ conf_data = configuration_data()
conf_data.set10('WLR_HAS_LIBCAP', false)
conf_data.set10('WLR_HAS_SYSTEMD', false)
conf_data.set10('WLR_HAS_ELOGIND', false)
conf_data.set10('WLR_HAS_RDP_BACKEND', false)
conf_data.set10('WLR_HAS_X11_BACKEND', false)
conf_data.set10('WLR_HAS_XWAYLAND', false)
conf_data.set10('WLR_HAS_XCB_ERRORS', false)
@ -67,6 +68,8 @@ wayland_client = dependency('wayland-client')
wayland_egl = dependency('wayland-egl')
wayland_protos = dependency('wayland-protocols', version: '>=1.17')
egl = dependency('egl')
freerdp = dependency('freerdp2', required: get_option('freerdp'))
winpr2 = dependency('winpr2', required: get_option('freerdp'))
glesv2 = dependency('glesv2')
drm = dependency('libdrm', version: '>=2.4.95')
gbm = dependency('gbm', version: '>=17.1.0')
@ -156,6 +159,7 @@ summary = [
' systemd: @0@'.format(conf_data.get('WLR_HAS_SYSTEMD', false)),
' elogind: @0@'.format(conf_data.get('WLR_HAS_ELOGIND', false)),
' xwayland: @0@'.format(conf_data.get('WLR_HAS_XWAYLAND', false)),
' rdp_backend: @0@'.format(conf_data.get('WLR_HAS_RDP_BACKEND', false)),
' x11_backend: @0@'.format(conf_data.get('WLR_HAS_X11_BACKEND', false)),
' xcb-icccm: @0@'.format(conf_data.get('WLR_HAS_XCB_ICCCM', false)),
' xcb-errors: @0@'.format(conf_data.get('WLR_HAS_XCB_ERRORS', false)),

1
meson_options.txt
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@ -1,3 +1,4 @@
option('freerdp', type: 'feature', value: 'auto', description: 'Enable support for the RDP backend with freerdp')
option('libcap', type: 'feature', value: 'auto', description: 'Enable support for rootless session via capabilities (cap_sys_admin)')
option('logind', type: 'feature', value: 'auto', description: 'Enable support for rootless session via logind')
option('logind-provider', type: 'combo', choices: ['systemd', 'elogind'], value: 'systemd', description: 'Provider of logind support library')