[PATCH] Add a FreeRds backend, take 6
Hardening
rdp.effort at gmail.com
Thu Jan 16 02:18:59 PST 2014
FreeRDS is a FreeRDP based RDP server, the server handles incoming connections and
talks RDP with the peers. FreeRds cooperates with an "out-service": the out-service creates
the content to display, and FreeRds will take care of encoding the content in the
appropriate format (bitmapUpdate, remoteFx or NsCodec).
To communicate, they use a unix socket for passing commands, and a shared buffer for
the screen content. A vblank signal sent by FreeRds via the command channel allows
to share the framebuffer nicely.
This patch adds a backend to create a FreeRDS compositor and have weston being an out-service
for FreeRds.
This new revision uses the refcounting of IPC shm to have the last process that shmdt() to
remove the segment. It also fixes a bug with the damaged region not resetted on mode_switch()
leading to invalid read accesses.
---
configure.ac | 12 +-
src/Makefile.am | 17 +-
src/compositor-freerds.c | 1206 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 1233 insertions(+), 2 deletions(-)
create mode 100644 src/compositor-freerds.c
diff --git a/configure.ac b/configure.ac
index 571bf60..51f3197 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,7 +55,7 @@ AC_CHECK_DECL(CLOCK_MONOTONIC,[],
[[#include <time.h>]])
AC_CHECK_HEADERS([execinfo.h])
-AC_CHECK_FUNCS([mkostemp strchrnul initgroups posix_fallocate])
+AC_CHECK_FUNCS([accept4 mkostemp strchrnul initgroups posix_fallocate])
COMPOSITOR_MODULES="wayland-server >= 1.3.90 pixman-1"
@@ -206,6 +206,15 @@ if test x$enable_rdp_compositor = xyes; then
PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp >= 1.1.0])
fi
+AC_ARG_ENABLE([freerds-compositor], [ --enable-freerds-compositor],,
+ enable_freerds_compositor=no)
+AM_CONDITIONAL([ENABLE_FREERDS_COMPOSITOR],
+ [test x$enable_freerds_compositor = xyes])
+if test x$enable_freerds_compositor = xyes; then
+ AC_DEFINE([BUILD_FREERDS_COMPOSITOR], [1], [Build the FreeRDS compositor])
+ PKG_CHECK_MODULES(FREERDS_COMPOSITOR, [freerds-backend])
+fi
+
AC_ARG_WITH(cairo,
AS_HELP_STRING([--with-cairo=@<:@image|gl|glesv2@:>@]
[Which Cairo renderer to use for the clients]),
@@ -526,6 +535,7 @@ AC_MSG_RESULT([
RPI Compositor ${enable_rpi_compositor}
FBDEV Compositor ${enable_fbdev_compositor}
RDP Compositor ${enable_rdp_compositor}
+ FreeRDS Compositor ${enable_freerds_compositor}
Raspberry Pi BCM headers ${have_bcm_host}
diff --git a/src/Makefile.am b/src/Makefile.am
index 446639c..588625e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -117,7 +117,9 @@ module_LTLIBRARIES = \
$(wayland_backend) \
$(headless_backend) \
$(fbdev_backend) \
- $(rdp_backend)
+ $(rdp_backend) \
+ $(freerds_backend)
+
if INSTALL_RPI_COMPOSITOR
module_LTLIBRARIES += $(rpi_backend)
@@ -280,6 +282,19 @@ rdp_backend_la_CFLAGS = \
rdp_backend_la_SOURCES = compositor-rdp.c
endif
+if ENABLE_FREERDS_COMPOSITOR
+freerds_backend = freerds-backend.la
+freerds_backend_la_LDFLAGS = -module -avoid-version
+freerds_backend_la_LIBADD = $(COMPOSITOR_LIBS) \
+ $(FREERDS_COMPOSITOR_LIBS) \
+ ../shared/libshared.la -lwinpr-input -lfreerdp-core
+freerds_backend_la_CFLAGS = \
+ $(COMPOSITOR_CFLAGS) \
+ $(FREERDS_COMPOSITOR_CFLAGS) \
+ $(GCC_CFLAGS)
+freerds_backend_la_SOURCES = compositor-freerds.c
+endif
+
if HAVE_LCMS
cms_static = cms-static.la
cms_static_la_LDFLAGS = -module -avoid-version
diff --git a/src/compositor-freerds.c b/src/compositor-freerds.c
new file mode 100644
index 0000000..7e23f10
--- /dev/null
+++ b/src/compositor-freerds.c
@@ -0,0 +1,1206 @@
+/**
+ * Copyright © 2013 Hardening <contact at hardening-consulting.com>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/shm.h>
+#include <sys/mman.h>
+#include <linux/input.h>
+
+#include <freerds/backend.h>
+
+#include <freerdp/freerdp.h>
+#include <freerdp/update.h>
+#include <freerdp/input.h>
+#include <freerdp/locale/keyboard.h>
+
+#include <winpr/input.h>
+#include <winpr/stream.h>
+
+#include "compositor.h"
+#include "pixman-renderer.h"
+
+
+#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int(10)
+#define FREERDS_COMMON_LENGTH 10
+#define FREERDS_MODE_FPS 60 * 1000
+
+/* ======================== stolen from wayland-os.c =======================*/
+static int
+set_cloexec_or_close(int fd)
+{
+ long flags;
+
+ if (fd == -1)
+ return -1;
+
+ flags = fcntl(fd, F_GETFD);
+ if (flags == -1)
+ goto err;
+
+ if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
+ goto err;
+
+ return fd;
+
+err:
+ close(fd);
+ return -1;
+}
+
+static int
+wl_os_socket_cloexec(int domain, int type, int protocol)
+{
+ int fd;
+
+ fd = socket(domain, type | SOCK_CLOEXEC, protocol);
+ if (fd >= 0)
+ return fd;
+ if (errno != EINVAL)
+ return -1;
+
+ fd = socket(domain, type, protocol);
+ return set_cloexec_or_close(fd);
+}
+
+static int
+wl_os_accept_cloexec(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
+{
+ int fd;
+
+#ifdef HAVE_ACCEPT4
+ fd = accept4(sockfd, addr, addrlen, SOCK_CLOEXEC);
+ if (fd >= 0)
+ return fd;
+ if (errno != ENOSYS)
+ return -1;
+#endif
+
+ fd = accept(sockfd, addr, addrlen);
+ return set_cloexec_or_close(fd);
+}
+
+/* =========================================================================== */
+
+
+struct freerds_compositor_config {
+ int width;
+ int height;
+ char *freerds_named_pipe;
+};
+
+struct freerds_compositor;
+struct freerds_output;
+
+/** @brief state of the module protocol automata */
+enum StreamState {
+ STREAM_WAITING_COMMON_HEADER,
+ STREAM_WAITING_DATA
+};
+
+struct freerds_compositor {
+ struct weston_compositor base;
+
+ struct freerds_output *output;
+ struct weston_seat seat;
+
+ bool have_seat;
+ int listening_fd;
+ struct wl_event_source *server_event_source;
+ int client_fd;
+ struct wl_event_source *client_event_source;
+ enum StreamState streamState;
+ wStream *in_stream;
+ wStream *out_stream;
+ int expected_bytes;
+ UINT32 keyboard_layout;
+ UINT32 keyboard_type;
+ xkb_mod_index_t capslock_mod_index;
+ xkb_mod_index_t numlock_mod_index;
+ xkb_mod_index_t scrolllock_mod_index;
+
+ RDS_MSG_COMMON header_common;
+ RDS_MSG_SHARED_FRAMEBUFFER rds_shared_fb;
+ RDS_MSG_BEGIN_UPDATE rds_begin_update;
+ RDS_MSG_END_UPDATE rds_end_update;
+ RDS_MSG_PAINT_RECT rds_paint_rect;
+ RDS_MSG_SET_SYSTEM_POINTER rds_set_system_pointer;
+};
+
+struct freerds_output {
+ struct weston_output base;
+ struct freerds_compositor *compositor;
+ struct wl_event_source *finish_frame_timer;
+
+ int shmid;
+ void *buffer;
+ pixman_image_t *shadow_surface;
+ pixman_region32_t damagedRegion;
+ bool waitingVBlank;
+ bool outputActive;
+};
+
+static void
+freerds_compositor_config_init(struct freerds_compositor_config *config) {
+ config->width = 640;
+ config->height = 480;
+ config->freerds_named_pipe = 0;
+}
+
+static int
+freerds_send_stream(struct freerds_compositor *c, wStream *s) {
+ int toWrite, written;
+ const char *ptr;
+
+ toWrite = Stream_Length(s);
+ ptr = (const char *)Stream_Buffer(s);
+ while (toWrite) {
+ written = write(c->client_fd, ptr, toWrite);
+ if (written <= 0)
+ return -1;
+ toWrite -= written;
+ ptr += written;
+ }
+ return 0;
+}
+
+#define ROUND_DOWN(V, B) ((V) - ((V) % (B)))
+#define ROUND_UP(V, B) ((V + (B - ((V) % B))))
+
+static void
+freerds_update_framebuffer(struct freerds_compositor *c, pixman_box32_t *rect) {
+ struct freerds_output *output = c->output;
+ unsigned char *src = (unsigned char *)pixman_image_get_data(output->shadow_surface) +
+ (pixman_image_get_stride(output->shadow_surface) * rect->y1) +
+ (rect->x1 * 4);
+ unsigned char *dst = (unsigned char *)output->buffer +
+ (c->rds_shared_fb.scanline * rect->y1) +
+ (rect->x1 * 4);
+ int widthBytes = (rect->x2 - rect->x1) * 4;
+ int y;
+
+ for (y = rect->y1; y < rect->y2; y++) {
+ memcpy(dst, src, widthBytes);
+ src += pixman_image_get_stride(output->shadow_surface);
+ dst += c->rds_shared_fb.scanline;
+ }
+}
+
+static void
+freerds_refresh_region(struct freerds_compositor *c, pixman_region32_t *region)
+{
+ int nrects, i;
+ pixman_box32_t *rect;
+ RDS_MSG_PAINT_RECT *paint = &c->rds_paint_rect;
+
+ Stream_SetPosition(c->out_stream, 0);
+ freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_begin_update);
+
+ rect = pixman_region32_rectangles(region, &nrects);
+ for (i = 0; i < nrects; i++, rect++) {
+ //weston_log("refresh_rect(%d,%d,%d,%d)\n", rect->x1, rect->y1, rect->x2, rect->y2);
+ freerds_update_framebuffer(c, rect);
+
+ paint->nXSrc = paint->nLeftRect = ROUND_DOWN(rect->x1, 16);
+ paint->nYSrc = paint->nTopRect = ROUND_DOWN(rect->y1, 16);
+ paint->nWidth = ROUND_UP(rect->x2, 16) - paint->nLeftRect;
+ paint->nHeight = ROUND_UP(rect->y2, 16) - paint->nTopRect;
+ freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_paint_rect);
+ }
+
+ freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_end_update);
+
+ Stream_SealLength(c->out_stream);
+ freerds_send_stream(c, c->out_stream);
+
+ pixman_region32_clear(region);
+
+ c->output->waitingVBlank = true;
+}
+
+
+static void
+freerds_output_start_repaint_loop(struct weston_output *output)
+{
+ uint32_t msec;
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ msec = tv.tv_sec * 1000 + tv.tv_usec / 1000;
+ weston_output_finish_frame(output, msec);
+}
+
+static int
+freerds_output_repaint(struct weston_output *output_base, pixman_region32_t *damage)
+{
+ struct freerds_output *output = container_of(output_base, struct freerds_output, base);
+ struct weston_compositor *ec = output->base.compositor;
+
+ pixman_region32_union(&output->damagedRegion, &output->damagedRegion, damage);
+
+ pixman_renderer_output_set_buffer(output_base, output->shadow_surface);
+ ec->renderer->repaint_output(&output->base, damage);
+
+ if (output->compositor->client_event_source && output->outputActive && !output->waitingVBlank)
+ freerds_refresh_region(output->compositor, &output->damagedRegion);
+
+ pixman_region32_subtract(&ec->primary_plane.damage, &ec->primary_plane.damage, damage);
+
+ wl_event_source_timer_update(output->finish_frame_timer, 16);
+ return 0;
+}
+
+static void
+freerds_kill_client(struct freerds_compositor *c) {
+ wl_event_source_remove(c->client_event_source);
+ c->client_event_source = 0;
+ if (c->have_seat) {
+ weston_seat_release_pointer(&c->seat);
+ weston_seat_release_keyboard(&c->seat);
+ weston_seat_release(&c->seat);
+ }
+
+ close(c->client_fd);
+ c->client_fd = -1;
+
+ c->expected_bytes = FREERDS_COMMON_LENGTH;
+ c->streamState = STREAM_WAITING_COMMON_HEADER;
+ c->keyboard_layout = 0;
+ c->keyboard_type = 0;
+ c->have_seat = false;
+ c->output->waitingVBlank = true;
+ c->output->outputActive = true;
+}
+
+static void
+freerds_output_destroy(struct weston_output *output_base)
+{
+ struct freerds_output *output = container_of(output_base, struct freerds_output, base);
+
+ if (output->shmid >= 0) {
+ if (shmdt(output->buffer) < 0)
+ weston_log("error detaching segment 0x%x, error=%s", output->shmid, strerror(errno));
+
+ output->shmid = -1;
+ output->buffer = 0;
+ }
+
+ pixman_image_unref(output->shadow_surface);
+ wl_event_source_remove(output->finish_frame_timer);
+ pixman_region32_fini(&output->damagedRegion);
+
+ pixman_renderer_output_destroy(output_base);
+ free(output);
+}
+
+static int
+finish_frame_handler(void *data)
+{
+ freerds_output_start_repaint_loop(data);
+ return 1;
+}
+
+static bool
+freerds_update_shm(struct freerds_output *output, int width, int height) {
+ struct freerds_compositor *c = output->compositor;
+ if (output->shmid >= 0) {
+ /* cleanup the previous shared memory if there were one */
+ if (shmdt(output->buffer) < 0)
+ weston_log("error detaching segment 0x%x, error=%s", output->shmid, strerror(errno));
+
+ output->shmid = -1;
+ output->buffer = 0;
+ c->rds_shared_fb.segmentId = -1;
+ }
+
+ c->rds_shared_fb.segmentId = output->shmid = shmget(IPC_PRIVATE, width * height * 4,
+ IPC_CREAT | IPC_EXCL | S_IRUSR | S_IWUSR);
+ if (output->shmid < 0) {
+ weston_log("unable to create a SHM, error=%s\n", strerror(errno));
+ return false;
+ }
+
+ output->buffer = shmat(output->shmid, 0, 0);
+ if (output->buffer == (void *)-1) {
+ weston_log("unable to attach to SHM, error=%s\n", strerror(errno));
+ }
+
+ if (shmctl(output->shmid, IPC_RMID, 0) < 0)
+ weston_log("error setting delete flag for shmId %d, error=%s", output->shmid, strerror(errno));
+
+ return (output->buffer != (void *)-1);
+}
+
+
+static struct weston_mode *
+freerds_insert_new_mode(struct weston_output *output, int width, int height, int rate) {
+ struct weston_mode *ret;
+ ret = zalloc(sizeof *ret);
+ if(!ret)
+ return ret;
+ ret->width = width;
+ ret->height = height;
+ ret->refresh = rate;
+ wl_list_insert(&output->mode_list, &ret->link);
+ return ret;
+}
+
+static struct weston_mode *
+ensure_matching_mode(struct weston_output *output, struct weston_mode *target) {
+ struct weston_mode *local;
+
+ wl_list_for_each(local, &output->mode_list, link) {
+ if((local->width == target->width) && (local->height == target->height))
+ return local;
+ }
+
+ return freerds_insert_new_mode(output, target->width, target->height, FREERDS_MODE_FPS);
+}
+
+static int
+freerds_send_shared_framebuffer(struct freerds_compositor *c) {
+ Stream_SetPosition(c->out_stream, 0);
+ freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_shared_fb);
+ Stream_SealLength(c->out_stream);
+
+ return freerds_send_stream(c, c->out_stream);
+}
+
+
+static int
+freerds_switch_mode(struct weston_output *output, struct weston_mode *mode)
+{
+ struct weston_mode *localMode;
+ pixman_image_t *new_shadow_buffer;
+ struct freerds_output *rdsOutput = container_of(output, struct freerds_output, base);
+ struct freerds_compositor *c = rdsOutput->compositor;
+
+ localMode = ensure_matching_mode(output, mode);
+ if (!localMode) {
+ weston_log("unable to ensure the requested mode\n");
+ return -ENOMEM;
+ }
+
+ if(localMode == output->current_mode)
+ return 0;
+
+ output->current_mode->flags &= ~WL_OUTPUT_MODE_CURRENT;
+
+ output->current_mode = localMode;
+ output->current_mode->flags |= WL_OUTPUT_MODE_CURRENT;
+
+ pixman_renderer_output_destroy(output);
+ pixman_renderer_output_create(output);
+
+ new_shadow_buffer = pixman_image_create_bits(PIXMAN_x8r8g8b8, mode->width,
+ mode->height, 0, mode->width * 4);
+ pixman_image_composite32(PIXMAN_OP_SRC, rdsOutput->shadow_surface, 0,
+ new_shadow_buffer, 0, 0,
+ 0, 0,
+ 0, 0, mode->width, mode->height
+ );
+
+ pixman_image_unref(rdsOutput->shadow_surface);
+ rdsOutput->shadow_surface = new_shadow_buffer;
+
+ pixman_region32_clear(&rdsOutput->damagedRegion);
+ pixman_region32_union_rect(&rdsOutput->damagedRegion, &rdsOutput->damagedRegion,
+ 0, 0, mode->width, mode->height);
+
+ c->rds_shared_fb.width = mode->width;
+ c->rds_shared_fb.height = mode->height;
+ c->rds_shared_fb.scanline = mode->width * 4;
+
+ if (c->client_fd >= 0) {
+ // we have a connected peer so we have to inform it of the new configuration
+ if (!freerds_update_shm(rdsOutput, mode->width, mode->height)) {
+ weston_log("unable to change the SHM configuration\n");
+ return -1;
+ }
+
+ freerds_send_shared_framebuffer(c);
+ }
+ return 0;
+}
+
+struct freerds_simple_mode {
+ int width;
+ int height;
+};
+static struct freerds_simple_mode standard_modes[] = {
+ {640, 480},
+ {800, 600},
+ {1024, 768},
+ {1280, 1024},
+
+ {0, 0}, /* /!\ the last one /!\ */
+};
+
+
+static int
+freerds_compositor_create_output(struct freerds_compositor *c, int width, int height)
+{
+ int i;
+ struct freerds_output *output;
+ struct wl_event_loop *loop;
+ struct weston_mode *currentMode, *next, *extraMode;
+ RDS_MSG_SHARED_FRAMEBUFFER *shared_fb;
+ RDS_MSG_PAINT_RECT *rect;
+ RDS_MSG_SET_SYSTEM_POINTER *system_pointer;
+
+ output = zalloc(sizeof *output);
+ if (output == NULL)
+ return -1;
+
+ wl_list_init(&output->base.mode_list);
+
+ currentMode = freerds_insert_new_mode(&output->base, width, height, FREERDS_MODE_FPS);
+ if(!currentMode)
+ goto out_free_output;
+ currentMode->flags = WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
+
+ for (i = 0; standard_modes[i].width; i++) {
+ if (standard_modes[i].width == width && standard_modes[i].height == height)
+ continue;
+
+ extraMode = freerds_insert_new_mode(&output->base,
+ standard_modes[i].width,
+ standard_modes[i].height, FREERDS_MODE_FPS
+ );
+ if(!extraMode)
+ goto out_output;
+ }
+
+ output->base.current_mode = output->base.native_mode = currentMode;
+ weston_output_init(&output->base, &c->base, 0, 0, width, height,
+ WL_OUTPUT_TRANSFORM_NORMAL, 1);
+
+ output->base.make = "weston";
+ output->base.model = "freerds";
+
+ output->shmid = -1;
+ output->buffer = 0;
+
+ shared_fb = &c->rds_shared_fb;
+ shared_fb->type = RDS_SERVER_SHARED_FRAMEBUFFER;
+ shared_fb->width = width;
+ shared_fb->height = height;
+ shared_fb->bitsPerPixel = 32;
+ shared_fb->bytesPerPixel = 4;
+ shared_fb->flags = RDS_FRAMEBUFFER_FLAG_ATTACH;
+ shared_fb->scanline = width * 4;
+
+ rect = &c->rds_paint_rect;
+ rect->type = RDS_SERVER_PAINT_RECT;
+ rect->fbSegmentId = output->shmid;
+ rect->bitmapData = NULL;
+ rect->bitmapDataLength = 0;
+ rect->framebuffer = 0;
+
+ system_pointer = &c->rds_set_system_pointer;
+ system_pointer->type = RDS_SERVER_SET_SYSTEM_POINTER;
+ system_pointer->ptrType = SYSPTR_NULL;
+
+ c->rds_begin_update.type = RDS_SERVER_BEGIN_UPDATE;
+ c->rds_end_update.type = RDS_SERVER_END_UPDATE;
+
+ output->waitingVBlank = true;
+ output->outputActive = true;
+
+ pixman_region32_init(&output->damagedRegion);
+ output->shadow_surface = pixman_image_create_bits(PIXMAN_a8r8g8b8,
+ width, height,
+ NULL,
+ width * 4);
+ if (output->shadow_surface == NULL) {
+ weston_log("Failed to create surface for frame buffer.\n");
+ goto out_output;
+ }
+
+ if (pixman_renderer_output_create(&output->base) < 0)
+ goto out_shadow_surface;
+
+ loop = wl_display_get_event_loop(c->base.wl_display);
+ output->finish_frame_timer = wl_event_loop_add_timer(loop, finish_frame_handler, output);
+
+ output->base.start_repaint_loop = freerds_output_start_repaint_loop;
+ output->base.repaint = freerds_output_repaint;
+ output->base.destroy = freerds_output_destroy;
+ output->base.assign_planes = NULL;
+ output->base.set_backlight = NULL;
+ output->base.set_dpms = NULL;
+ output->base.switch_mode = freerds_switch_mode;
+ output->compositor = c;
+ c->output = output;
+
+ wl_list_insert(c->base.output_list.prev, &output->base.link);
+ return 0;
+
+out_shadow_surface:
+ pixman_image_unref(output->shadow_surface);
+out_output:
+ weston_output_destroy(&output->base);
+
+ wl_list_for_each_safe(currentMode, next, &output->base.mode_list, link)
+ free(currentMode);
+out_free_output:
+ free(output);
+ return -1;
+}
+
+static void
+freerds_restore(struct weston_compositor *ec)
+{
+}
+
+static void
+freerds_destroy(struct weston_compositor *ec)
+{
+ struct freerds_compositor *c = container_of(ec, struct freerds_compositor, base);
+
+ wl_event_source_remove(c->server_event_source);
+ c->server_event_source = 0;
+ close(c->listening_fd);
+
+ if (c->client_event_source)
+ freerds_kill_client(c);
+
+ Stream_Free(c->in_stream, TRUE);
+ Stream_Free(c->out_stream, TRUE);
+ weston_compositor_shutdown(ec);
+
+ free(ec);
+}
+
+
+static void
+freerds_mouse_event(struct freerds_compositor *c, DWORD x, DWORD y, DWORD flags) {
+ wl_fixed_t wl_x, wl_y, axis;
+ uint32_t button = 0;
+
+ //weston_log("mouse event: x=%ld y=%ld flags=0x%x\n", x, y, flags);
+ if (flags & PTR_FLAGS_MOVE) {
+ if((int)x < c->output->base.width && (int)y < c->output->base.height) {
+ wl_x = wl_fixed_from_int((int)x);
+ wl_y = wl_fixed_from_int((int)y);
+ notify_motion_absolute(&c->seat, weston_compositor_get_time(), wl_x, wl_y);
+ }
+ }
+
+ 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) {
+ notify_button(&c->seat, weston_compositor_get_time(), button,
+ (flags & PTR_FLAGS_DOWN) ? WL_POINTER_BUTTON_STATE_PRESSED : WL_POINTER_BUTTON_STATE_RELEASED
+ );
+ }
+
+ if (flags & PTR_FLAGS_WHEEL) {
+ /* DEFAULT_AXIS_STEP_DISTANCE is stolen from compositor-x11.c
+ * The RDP specs says the lower bits of flags contains the "the number of rotation
+ * units the mouse wheel was rotated".
+ *
+ * http://blogs.msdn.com/b/oldnewthing/archive/2013/01/23/10387366.aspx explains the 120 value
+ */
+ axis = (DEFAULT_AXIS_STEP_DISTANCE * (flags & 0xff)) / 120;
+ if (flags & PTR_FLAGS_WHEEL_NEGATIVE)
+ axis = -axis;
+
+ notify_axis(&c->seat, weston_compositor_get_time(),
+ WL_POINTER_AXIS_VERTICAL_SCROLL,
+ axis);
+ }
+}
+
+static void
+freerds_scancode_keyboard_event(struct freerds_compositor *c, UINT32 flags, UINT32 code,
+ UINT32 keyboardType)
+{
+ uint32_t vk_code, full_code, key_code;
+ enum wl_keyboard_key_state keyState;
+ int notify = 0;
+
+ //weston_log("code=%d flags=0x%x keyb=%d\n", code, flags, keyboardType);
+ if (flags & KBD_FLAGS_DOWN) {
+ keyState = WL_KEYBOARD_KEY_STATE_PRESSED;
+ notify = 1;
+ } else if (flags & KBD_FLAGS_RELEASE) {
+ keyState = WL_KEYBOARD_KEY_STATE_RELEASED;
+ notify = 1;
+ }
+
+ if(notify) {
+ full_code = code;
+ if(flags & KBD_FLAGS_EXTENDED)
+ full_code |= KBD_FLAGS_EXTENDED;
+
+ vk_code = GetVirtualKeyCodeFromVirtualScanCode(full_code, keyboardType);
+ if(flags & KBD_FLAGS_EXTENDED)
+ vk_code |= KBDEXT;
+
+ key_code = GetKeycodeFromVirtualKeyCode(vk_code, KEYCODE_TYPE_EVDEV);
+
+ /*weston_log("code=%x ext=%d vk_code=%x scan_code=%x\n", code, (flags & KBD_FLAGS_EXTENDED) ? 1 : 0,
+ vk_code, scan_code);*/
+ notify_key(&c->seat, weston_compositor_get_time(), key_code-8, keyState,
+ STATE_UPDATE_AUTOMATIC);
+ }
+}
+
+static void
+freerds_virtual_keyboard_event(struct freerds_compositor *c, UINT32 flags, UINT32 vk_code)
+{
+ uint32_t key_code;
+ enum wl_keyboard_key_state keyState;
+ int notify = 0;
+
+ //weston_log("vk_code=%d flags=0x%x\n", vk_code, flags);
+ if (flags & KBD_FLAGS_DOWN) {
+ keyState = WL_KEYBOARD_KEY_STATE_PRESSED;
+ notify = 1;
+ } else if (flags & KBD_FLAGS_RELEASE) {
+ keyState = WL_KEYBOARD_KEY_STATE_RELEASED;
+ notify = 1;
+ }
+
+ if(notify) {
+ if(flags & KBD_FLAGS_EXTENDED)
+ vk_code |= KBDEXT;
+
+ key_code = GetKeycodeFromVirtualKeyCode(vk_code, KEYCODE_TYPE_EVDEV);
+
+ /*weston_log("code=%x ext=%d vk_code=%x scan_code=%x\n", code, (flags & KBD_FLAGS_EXTENDED) ? 1 : 0,
+ vk_code, scan_code);*/
+ notify_key(&c->seat, weston_compositor_get_time(), key_code, keyState,
+ STATE_UPDATE_AUTOMATIC);
+ }
+}
+
+
+struct rdp_to_xkb_keyboard_layout {
+ UINT32 rdpLayoutCode;
+ char *xkbLayout;
+};
+
+
+/* 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"},
+ {KBD_BULGARIAN, "bg"},
+ {KBD_CHINESE_TRADITIONAL_US, 0},
+ {KBD_CZECH, "cz"},
+ {KBD_DANISH, "dk"},
+ {KBD_GERMAN, "de"},
+ {KBD_GREEK, "gr"},
+ {KBD_US, "us"},
+ {KBD_SPANISH, "es"},
+ {KBD_FINNISH, "fi"},
+ {KBD_FRENCH, "fr"},
+ {KBD_HEBREW, "il"},
+ {KBD_HUNGARIAN, "hu"},
+ {KBD_ICELANDIC, "is"},
+ {KBD_ITALIAN, "it"},
+ {KBD_JAPANESE, "jp"},
+ {KBD_KOREAN, "kr"},
+ {KBD_DUTCH, "nl"},
+ {KBD_NORWEGIAN, "no"},
+ {KBD_POLISH_PROGRAMMERS, 0},
+// {KBD_PORTUGUESE_BRAZILIAN_ABN0416, 0},
+ {KBD_ROMANIAN, 0},
+ {KBD_RUSSIAN, "ru"},
+ {KBD_CROATIAN, 0},
+ {KBD_SLOVAK, 0},
+ {KBD_ALBANIAN, 0},
+ {KBD_SWEDISH, 0},
+ {KBD_THAI_KEDMANEE, 0},
+ {KBD_TURKISH_Q, 0},
+ {KBD_URDU, 0},
+ {KBD_UKRAINIAN, 0},
+ {KBD_BELARUSIAN, 0},
+ {KBD_SLOVENIAN, 0},
+ {KBD_ESTONIAN, "ee"},
+ {KBD_LATVIAN, 0},
+ {KBD_LITHUANIAN_IBM, 0},
+ {KBD_FARSI, 0},
+ {KBD_VIETNAMESE, 0},
+ {KBD_ARMENIAN_EASTERN, 0},
+ {KBD_AZERI_LATIN, 0},
+ {KBD_FYRO_MACEDONIAN, 0},
+ {KBD_GEORGIAN, 0},
+ {KBD_FAEROESE, 0},
+ {KBD_DEVANAGARI_INSCRIPT, 0},
+ {KBD_MALTESE_47_KEY, 0},
+ {KBD_NORWEGIAN_WITH_SAMI, 0},
+ {KBD_KAZAKH, 0},
+ {KBD_KYRGYZ_CYRILLIC, 0},
+ {KBD_TATAR, 0},
+ {KBD_BENGALI, 0},
+ {KBD_PUNJABI, 0},
+ {KBD_GUJARATI, 0},
+ {KBD_TAMIL, 0},
+ {KBD_TELUGU, 0},
+ {KBD_KANNADA, 0},
+ {KBD_MALAYALAM, 0},
+ {KBD_MARATHI, 0},
+ {KBD_MONGOLIAN_CYRILLIC, 0},
+ {KBD_UNITED_KINGDOM_EXTENDED, 0},
+ {KBD_SYRIAC, 0},
+ {KBD_NEPALI, 0},
+ {KBD_PASHTO, 0},
+ {KBD_DIVEHI_PHONETIC, 0},
+ {KBD_LUXEMBOURGISH, 0},
+ {KBD_MAORI, 0},
+ {KBD_CHINESE_SIMPLIFIED_US, 0},
+ {KBD_SWISS_GERMAN, 0},
+ {KBD_UNITED_KINGDOM, 0},
+ {KBD_LATIN_AMERICAN, 0},
+ {KBD_BELGIAN_FRENCH, 0},
+ {KBD_BELGIAN_PERIOD, 0},
+ {KBD_PORTUGUESE, 0},
+ {KBD_SERBIAN_LATIN, 0},
+ {KBD_AZERI_CYRILLIC, 0},
+ {KBD_SWEDISH_WITH_SAMI, 0},
+ {KBD_UZBEK_CYRILLIC, 0},
+ {KBD_INUKTITUT_LATIN, 0},
+ {KBD_CANADIAN_FRENCH_LEGACY, "fr-legacy"},
+ {KBD_SERBIAN_CYRILLIC, 0},
+ {KBD_CANADIAN_FRENCH, 0},
+ {KBD_SWISS_FRENCH, "ch"},
+ {KBD_BOSNIAN, "unicode"},
+ {KBD_IRISH, 0},
+ {KBD_BOSNIAN_CYRILLIC, 0},
+
+ {0x00000000, 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 */
+ "pc105",/* 4: IBM enhanced (101- or 102-key) keyboard */
+ "", /* 5: Nokia 1050 and similar keyboards */
+ "", /* 6: Nokia 9140 and similar keyboards */
+ "jp106" /* 7: Japanese keyboard */
+};
+
+static struct xkb_keymap *
+freerds_retrieve_keymap(UINT32 rdpKbLayout, UINT32 rdpKbType) {
+ struct xkb_context *xkbContext;
+ struct xkb_rule_names xkbRuleNames;
+ struct xkb_keymap *keymap;
+ int i;
+
+ memset(&xkbRuleNames, 0, sizeof(xkbRuleNames));
+ if(rdpKbType <= 7 && rdpKbType > 0)
+ xkbRuleNames.model = rdp_keyboard_types[rdpKbType];
+ else
+ xkbRuleNames.model = "pc105";
+
+ for(i = 0; rdp_keyboards[i].rdpLayoutCode; i++) {
+ if(rdp_keyboards[i].rdpLayoutCode == rdpKbLayout) {
+ xkbRuleNames.layout = rdp_keyboards[i].xkbLayout;
+ break;
+ }
+ }
+
+ keymap = NULL;
+ if(xkbRuleNames.layout) {
+ xkbContext = xkb_context_new(0);
+ if(!xkbContext) {
+ weston_log("unable to create a xkb_context\n");
+ return NULL;
+ }
+
+ weston_log("looking for keymap %s\n", xkbRuleNames.layout);
+ keymap = xkb_keymap_new_from_names(xkbContext, &xkbRuleNames, 0);
+ }
+ return keymap;
+}
+
+static void
+freerds_configure_keyboard(struct freerds_compositor *c, UINT32 layout, UINT32 keyboard_type) {
+ //weston_log("%s: layout=0x%x keyboard_type=%d\n", __FUNCTION__, layout, keyboard_type);
+ if (c->keyboard_layout == layout && c->keyboard_type == keyboard_type)
+ return;
+
+ weston_seat_init_keyboard(&c->seat,
+ freerds_retrieve_keymap(layout, keyboard_type)
+ );
+
+ c->keyboard_layout = layout;
+ c->keyboard_type = keyboard_type;
+}
+
+static void
+freerds_update_keyboard_modifiers(struct freerds_compositor *c, bool capsLock,
+ bool numLock, bool scrollLock, bool kanaLock)
+{
+ uint32_t mods_depressed, mods_latched, mods_locked, group;
+ uint32_t serial;
+ int numMask, capsMask, scrollMask;
+
+ struct weston_keyboard *keyboard = c->seat.keyboard;
+ struct xkb_state *state = keyboard->xkb_state.state;
+ struct weston_xkb_info *xkb_info = keyboard->xkb_info;
+
+ mods_depressed = xkb_state_serialize_mods(state, XKB_STATE_DEPRESSED);
+ mods_latched = xkb_state_serialize_mods(state, XKB_STATE_LATCHED);
+ mods_locked = xkb_state_serialize_mods(state, XKB_STATE_LOCKED);
+ group = xkb_state_serialize_group(state, XKB_STATE_EFFECTIVE);
+
+ numMask = (1 << xkb_info->mod2_mod);
+ capsMask = (1 << xkb_info->caps_mod);
+ scrollMask = (1 << xkb_info->scroll_led); // TODO: don't rely on the led status
+
+ mods_locked = capsLock ? (mods_locked | capsMask) : (mods_locked & ~capsMask);
+ mods_locked = numLock ? (mods_locked | numMask) : (mods_locked & ~numLock);
+ mods_locked = scrollLock ? (mods_locked | scrollMask) : (mods_locked & ~scrollMask);
+
+ xkb_state_update_mask(state, mods_depressed, mods_latched, mods_locked, 0, 0, group);
+
+ serial = wl_display_next_serial(c->base.wl_display);
+ notify_modifiers(&c->seat, serial);
+}
+
+static int
+freerds_send_disable_pointer(struct freerds_compositor *c) {
+ Stream_SetPosition(c->out_stream, 0);
+ freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_set_system_pointer);
+ Stream_SealLength(c->out_stream);
+ return freerds_send_stream(c, c->out_stream);
+}
+
+
+static int
+freerds_treat_message(struct freerds_compositor *c, wStream *s) {
+ RDS_MSG_CAPABILITIES capabilities;
+ RDS_MSG_MOUSE_EVENT mouse_event;
+ RDS_MSG_SUPPRESS_OUTPUT suppress_output;
+ RDS_MSG_SCANCODE_KEYBOARD_EVENT scancode_event;
+ RDS_MSG_VIRTUAL_KEYBOARD_EVENT vk_event;
+ RDS_MSG_SYNCHRONIZE_KEYBOARD_EVENT sync_keyboard_event;
+ RDS_MSG_REFRESH_RECT refresh_rect_event;
+
+ RECTANGLE_16 *rect16;
+ unsigned int i;
+ struct weston_mode *currentMode, targetMode;
+
+ //weston_log("message type %d\n", c->header_common.type);
+ switch (c->header_common.type) {
+ case RDS_CLIENT_CAPABILITIES:
+ if (freerds_read_capabilities(s, &capabilities) < 0) {
+ weston_log("invalid capabilities message\n");
+ return -1;
+ }
+ weston_seat_init(&c->seat, &c->base, "freerds");
+ weston_seat_init_pointer(&c->seat);
+
+ freerds_configure_keyboard(c, capabilities.KeyboardLayout, capabilities.KeyboardType);
+ c->have_seat = true;
+
+ currentMode = c->output->base.current_mode;
+ if (capabilities.DesktopWidth != currentMode->width || capabilities.DesktopHeight != currentMode->height) {
+ // mode switching will send the shared framebuffer
+ targetMode.width = capabilities.DesktopWidth;
+ targetMode.height = capabilities.DesktopHeight;
+ weston_output_switch_mode(&c->output->base, &targetMode, 1, WESTON_MODE_SWITCH_SET_NATIVE);
+ } else {
+ if (c->output->shmid < 0)
+ freerds_update_shm(c->output, capabilities.DesktopWidth, capabilities.DesktopHeight);
+ if (freerds_send_shared_framebuffer(c) < 0)
+ weston_log("unable to send shared framebuffer, errno=%d\n", errno);
+ }
+
+ if (freerds_send_disable_pointer(c) < 0)
+ weston_log("unable to disable client-side pointer, errno=%d\n", errno);
+ break;
+
+ case RDS_CLIENT_MOUSE_EVENT:
+ if (freerds_read_mouse_event(s, &mouse_event) < 0) {
+ weston_log("invalid mouse event message\n");
+ return -1;
+ }
+ freerds_mouse_event(c, mouse_event.x, mouse_event.y, mouse_event.flags);
+ break;
+
+ case RDS_CLIENT_SCANCODE_KEYBOARD_EVENT:
+ if (freerds_read_scancode_keyboard_event(s, &scancode_event) < 0) {
+ weston_log("invalid scancode keyboard event message\n");
+ return -1;
+ }
+ freerds_scancode_keyboard_event(c, scancode_event.flags, scancode_event.code,
+ scancode_event.keyboardType);
+ break;
+
+ case RDS_CLIENT_VIRTUAL_KEYBOARD_EVENT:
+ if (freerds_read_virtual_keyboard_event(s, &vk_event) < 0) {
+ weston_log("invalid virtual keycode event message\n");
+ return -1;
+ }
+ freerds_virtual_keyboard_event(c, vk_event.flags, vk_event.code);
+ break;
+
+ case RDS_CLIENT_VBLANK_EVENT:
+ c->output->waitingVBlank = false;
+ if (c->output->outputActive && pixman_region32_not_empty(&c->output->damagedRegion))
+ freerds_refresh_region(c, &c->output->damagedRegion);
+ break;
+
+ case RDS_CLIENT_REFRESH_RECT:
+ if (freerds_read_refresh_rect(s, &refresh_rect_event) < 0) {
+ weston_log("invalid refresh_rect message\n");
+ return -1;
+ }
+
+ rect16 = refresh_rect_event.areasToRefresh;
+ for (i = 0; i < refresh_rect_event.numberOfAreas; i++, rect16++) {
+ pixman_region32_union_rect(&c->output->damagedRegion, &c->output->damagedRegion,
+ rect16->left, rect16->top,
+ (rect16->right - rect16->left),
+ (rect16->bottom - rect16->top));
+ }
+
+ if (!c->output->waitingVBlank && c->output->outputActive)
+ freerds_refresh_region(c, &c->output->damagedRegion);
+ break;
+
+ case RDS_CLIENT_SUPPRESS_OUTPUT:
+ if (freerds_read_suppress_output(s, &suppress_output) < 0) {
+ weston_log("invalid suppress_output message\n");
+ return -1;
+ }
+
+ c->output->outputActive = suppress_output.activeOutput;
+ // TODO: freeze the compositor when output is suppressed ?
+ break;
+
+ case RDS_CLIENT_SYNCHRONIZE_KEYBOARD_EVENT:
+ if (freerds_read_synchronize_keyboard_event(s, &sync_keyboard_event) < 0) {
+ weston_log("invalid synchronize keyboard message\n");
+ return -1;
+ }
+
+ freerds_update_keyboard_modifiers(c,
+ sync_keyboard_event.flags & KBD_SYNC_CAPS_LOCK,
+ sync_keyboard_event.flags & KBD_SYNC_NUM_LOCK,
+ sync_keyboard_event.flags & KBD_SYNC_SCROLL_LOCK,
+ sync_keyboard_event.flags & KBD_SYNC_KANA_LOCK
+ );
+ break;
+
+ case RDS_CLIENT_UNICODE_KEYBOARD_EVENT:
+ case RDS_CLIENT_EXTENDED_MOUSE_EVENT:
+ default:
+ weston_log("not handled yet, %d\n", c->header_common.type);
+ break;
+ }
+ return 0;
+}
+
+
+static int
+freerds_client_activity(int fd, uint32_t mask, void *data) {
+ struct freerds_compositor *c = (struct freerds_compositor *)data;
+ int ret;
+
+ if (!(mask & WL_EVENT_READABLE))
+ return 0;
+
+ ret = read(fd, Stream_Pointer(c->in_stream), c->expected_bytes);
+ if (ret <= 0) {
+ weston_log("connection closed fd=%d client_fd=%d\n", fd, c->client_fd);
+ freerds_kill_client(c);
+ return 0;
+ }
+
+ Stream_Seek(c->in_stream, ret);
+ c->expected_bytes -= ret;
+
+ if (c->expected_bytes)
+ return 0;
+
+ Stream_SealLength(c->in_stream);
+ Stream_SetPosition(c->in_stream, 0);
+
+ switch (c->streamState) {
+ case STREAM_WAITING_COMMON_HEADER:
+ //weston_log("reading %d for common header\n", ret);
+ freerds_read_common_header(c->in_stream, &c->header_common);
+ if (c->header_common.length > FREERDS_COMMON_LENGTH) {
+ c->streamState = STREAM_WAITING_DATA;
+ c->expected_bytes = c->header_common.length - FREERDS_COMMON_LENGTH;
+ Stream_EnsureCapacity(c->in_stream, c->header_common.length);
+ Stream_SetPosition(c->in_stream, FREERDS_COMMON_LENGTH);
+ } else {
+ freerds_treat_message(c, c->in_stream);
+
+ Stream_SetPosition(c->in_stream, 0);
+ c->expected_bytes = FREERDS_COMMON_LENGTH;
+ }
+ break;
+ case STREAM_WAITING_DATA:
+ Stream_SetPosition(c->in_stream, FREERDS_COMMON_LENGTH);
+ freerds_treat_message(c, c->in_stream);
+
+ Stream_SetPosition(c->in_stream, 0);
+ c->streamState = STREAM_WAITING_COMMON_HEADER;
+ c->expected_bytes = FREERDS_COMMON_LENGTH;
+ break;
+ default:
+ weston_log("unknown module protocol state\n");
+ return -1;
+ }
+ return 0;
+}
+
+static int
+freerds_named_pipe_activity(int fd, uint32_t mask, void *data) {
+ struct freerds_compositor *c = (struct freerds_compositor *)data;
+ struct wl_event_loop *loop;
+
+ if (c->client_fd != -1) {
+ weston_log("dropping existing client");
+ freerds_kill_client(c);
+ }
+
+ c->client_fd = wl_os_accept_cloexec(c->listening_fd, 0, 0);
+ if (c->client_fd >= 0) {
+ loop = wl_display_get_event_loop(c->base.wl_display);
+ c->client_event_source = wl_event_loop_add_fd(loop, c->client_fd, WL_EVENT_READABLE,
+ freerds_client_activity, c);
+ }
+ return 0;
+}
+
+
+static struct weston_compositor *
+freerds_compositor_create(struct wl_display *display,
+ struct freerds_compositor_config *config,
+ int *argc, char *argv[], struct weston_config *wconfig)
+{
+ struct freerds_compositor *c;
+ struct wl_event_loop *loop;
+ struct sockaddr_un remote;
+ int len;
+
+ c = zalloc(sizeof *c);
+ if (c == NULL)
+ return NULL;
+
+ if (weston_compositor_init(&c->base, display, argc, argv, wconfig) < 0)
+ goto err_free;
+
+ c->base.destroy = freerds_destroy;
+ c->base.restore = freerds_restore;
+ c->client_fd = -1;
+
+ if (pixman_renderer_init(&c->base) < 0)
+ goto err_compositor;
+
+ if (freerds_compositor_create_output(c, config->width, config->height) < 0)
+ goto err_compositor;
+
+ if (!config->freerds_named_pipe) {
+ weston_log("no socket path given");
+ goto err_output;
+ }
+
+ c->listening_fd = wl_os_socket_cloexec(AF_UNIX, SOCK_STREAM, 0);
+ if (c->listening_fd < 0) {
+ weston_log("unable to create the listening socket\n");
+ goto err_output;
+ }
+
+ memset(&remote, 0, sizeof(remote));
+ remote.sun_family = AF_UNIX;
+ strcpy(remote.sun_path, config->freerds_named_pipe);
+ len = strlen(remote.sun_path) + sizeof(remote.sun_family);
+ if (bind(c->listening_fd, (struct sockaddr *)&remote, len) < 0) {
+ weston_log("unable to bind the named pipe, error=%s path=%s\n",
+ strerror(errno), config->freerds_named_pipe);
+ goto err_socket;
+ }
+
+ if (!listen(c->listening_fd, 1) < 0) {
+ weston_log("unable to listen on the named pipe, errno=%d path=%s\n",
+ errno, config->freerds_named_pipe);
+ goto err_socket;
+ }
+
+ c->in_stream = Stream_New(NULL, FREERDS_COMMON_LENGTH);
+ c->out_stream = Stream_New(NULL, 65536);
+ c->expected_bytes = FREERDS_COMMON_LENGTH;
+ c->streamState = STREAM_WAITING_COMMON_HEADER;
+ loop = wl_display_get_event_loop(c->base.wl_display);
+ c->server_event_source = wl_event_loop_add_fd(loop, c->listening_fd, WL_EVENT_READABLE,
+ freerds_named_pipe_activity, c);
+
+ return &c->base;
+
+err_socket:
+ close(c->listening_fd);
+err_output:
+ weston_output_destroy(&c->output->base);
+err_compositor:
+ weston_compositor_shutdown(&c->base);
+err_free:
+ free(c);
+ return NULL;
+}
+
+WL_EXPORT struct weston_compositor *
+backend_init(struct wl_display *display, int *argc, char *argv[],
+ struct weston_config *wconfig)
+{
+ struct freerds_compositor_config config;
+ freerds_compositor_config_init(&config);
+ int major, minor, revision;
+
+ freerdp_get_version(&major, &minor, &revision);
+ weston_log("using FreeRDP version %d.%d.%d\n", major, minor, revision);
+
+ const struct weston_option freerds_options[] = {
+ { WESTON_OPTION_STRING, "freerds-pipe", 0, &config.freerds_named_pipe },
+ { WESTON_OPTION_UNSIGNED_INTEGER, "width", 0, &config.width },
+ { WESTON_OPTION_UNSIGNED_INTEGER, "height", 0, &config.height },
+ };
+
+ parse_options(freerds_options, ARRAY_LENGTH(freerds_options), argc, argv);
+ return freerds_compositor_create(display, &config, argc, argv, wconfig);
+}
--
1.8.1.2
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