--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/vnc.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,2585 @@
+/*
+ * QEMU VNC display driver
+ *
+ * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
+ * Copyright (C) 2006 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu-common.h"
+#include "console.h"
+#include "sysemu.h"
+#include "qemu_socket.h"
+#include "qemu-timer.h"
+#include "gui_host.h"
+#include "audio/audio.h"
+
+#define VNC_REFRESH_INTERVAL (1000 / 30)
+
+#include "vnc_keysym.h"
+#include "keymaps.c"
+#include "d3des.h"
+
+#ifdef CONFIG_VNC_TLS
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+#endif /* CONFIG_VNC_TLS */
+
+// #define _VNC_DEBUG 1
+
+#ifdef _VNC_DEBUG
+#define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
+
+#if CONFIG_VNC_TLS && _VNC_DEBUG >= 2
+/* Very verbose, so only enabled for _VNC_DEBUG >= 2 */
+static void vnc_debug_gnutls_log(int level, const char* str) {
+ VNC_DEBUG("%d %s", level, str);
+}
+#endif /* CONFIG_VNC_TLS && _VNC_DEBUG */
+#else
+#define VNC_DEBUG(fmt, ...) do { } while (0)
+#endif
+
+/* DFG TODO */
+#define kbd_put_keycode gui_notify_term_key
+/************/
+
+typedef struct Buffer
+{
+ size_t capacity;
+ size_t offset;
+ uint8_t *buffer;
+} Buffer;
+
+typedef struct VncState VncState;
+
+typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len);
+
+typedef void VncWritePixels(VncState *vs, void *data, int size);
+
+typedef void VncSendHextileTile(VncState *vs,
+ int x, int y, int w, int h,
+ void *last_bg,
+ void *last_fg,
+ int *has_bg, int *has_fg);
+
+#define VNC_MAX_WIDTH 2048
+#define VNC_MAX_HEIGHT 2048
+#define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32))
+
+#define VNC_AUTH_CHALLENGE_SIZE 16
+
+enum {
+ VNC_AUTH_INVALID = 0,
+ VNC_AUTH_NONE = 1,
+ VNC_AUTH_VNC = 2,
+ VNC_AUTH_RA2 = 5,
+ VNC_AUTH_RA2NE = 6,
+ VNC_AUTH_TIGHT = 16,
+ VNC_AUTH_ULTRA = 17,
+ VNC_AUTH_TLS = 18,
+ VNC_AUTH_VENCRYPT = 19
+};
+
+#ifdef CONFIG_VNC_TLS
+enum {
+ VNC_WIREMODE_CLEAR,
+ VNC_WIREMODE_TLS,
+};
+
+enum {
+ VNC_AUTH_VENCRYPT_PLAIN = 256,
+ VNC_AUTH_VENCRYPT_TLSNONE = 257,
+ VNC_AUTH_VENCRYPT_TLSVNC = 258,
+ VNC_AUTH_VENCRYPT_TLSPLAIN = 259,
+ VNC_AUTH_VENCRYPT_X509NONE = 260,
+ VNC_AUTH_VENCRYPT_X509VNC = 261,
+ VNC_AUTH_VENCRYPT_X509PLAIN = 262,
+};
+
+#define X509_CA_CERT_FILE "ca-cert.pem"
+#define X509_CA_CRL_FILE "ca-crl.pem"
+#define X509_SERVER_KEY_FILE "server-key.pem"
+#define X509_SERVER_CERT_FILE "server-cert.pem"
+
+#endif /* CONFIG_VNC_TLS */
+
+
+int kbd_in_terminal_mode; /* DFG TODO: MOVE THIS INTO VncState and implement! */
+
+struct VncState
+{
+ QEMUTimer *timer;
+ int lsock;
+ int csock;
+ DisplayState *ds;
+ int need_update;
+ int width;
+ int height;
+ uint32_t dirty_row[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];
+ char *old_data;
+ int depth; /* internal VNC frame buffer byte per pixel */
+ int has_resize;
+ int has_hextile;
+ int has_pointer_type_change;
+ int has_WMVi;
+ int absolute;
+ int last_x;
+ int last_y;
+
+ int major;
+ int minor;
+
+ char *display;
+ char *password;
+ int auth;
+#ifdef CONFIG_VNC_TLS
+ int subauth;
+ int x509verify;
+
+ char *x509cacert;
+ char *x509cacrl;
+ char *x509cert;
+ char *x509key;
+#endif
+ char challenge[VNC_AUTH_CHALLENGE_SIZE];
+
+#ifdef CONFIG_VNC_TLS
+ int wiremode;
+ gnutls_session_t tls_session;
+#endif
+
+ Buffer output;
+ Buffer input;
+ kbd_layout_t *kbd_layout;
+ /* current output mode information */
+ VncWritePixels *write_pixels;
+ VncSendHextileTile *send_hextile_tile;
+ int pix_bpp, pix_big_endian;
+ int client_red_shift, client_red_max, server_red_shift, server_red_max;
+ int client_green_shift, client_green_max, server_green_shift, server_green_max;
+ int client_blue_shift, client_blue_max, server_blue_shift, server_blue_max;
+
+ CaptureVoiceOut *audio_cap;
+ struct audsettings as;
+
+ VncReadEvent *read_handler;
+ size_t read_handler_expect;
+ /* input */
+ uint8_t modifiers_state[256];
+};
+
+static VncState *vnc_state; /* needed for info vnc */
+
+void do_info_vnc(void)
+{
+ if (vnc_state == NULL || vnc_state->display == NULL)
+ term_printf("VNC server disabled\n");
+ else {
+ term_printf("VNC server active on: ");
+ term_print_filename(vnc_state->display);
+ term_printf("\n");
+
+ if (vnc_state->csock == -1)
+ term_printf("No client connected\n");
+ else
+ term_printf("Client connected\n");
+ }
+}
+
+/* TODO
+ 1) Get the queue working for IO.
+ 2) there is some weirdness when using the -S option (the screen is grey
+ and not totally invalidated
+ 3) resolutions > 1024
+*/
+
+static void vnc_write(VncState *vs, const void *data, size_t len);
+static void vnc_write_u32(VncState *vs, uint32_t value);
+static void vnc_write_s32(VncState *vs, int32_t value);
+static void vnc_write_u16(VncState *vs, uint16_t value);
+static void vnc_write_u8(VncState *vs, uint8_t value);
+static void vnc_flush(VncState *vs);
+static void vnc_update_client(void *opaque);
+static void vnc_client_read(void *opaque);
+
+static void vnc_colordepth(DisplayState *ds, int depth);
+
+static inline void vnc_set_bit(uint32_t *d, int k)
+{
+ d[k >> 5] |= 1 << (k & 0x1f);
+}
+
+static inline void vnc_clear_bit(uint32_t *d, int k)
+{
+ d[k >> 5] &= ~(1 << (k & 0x1f));
+}
+
+static inline void vnc_set_bits(uint32_t *d, int n, int nb_words)
+{
+ int j;
+
+ j = 0;
+ while (n >= 32) {
+ d[j++] = -1;
+ n -= 32;
+ }
+ if (n > 0)
+ d[j++] = (1 << n) - 1;
+ while (j < nb_words)
+ d[j++] = 0;
+}
+
+static inline int vnc_get_bit(const uint32_t *d, int k)
+{
+ return (d[k >> 5] >> (k & 0x1f)) & 1;
+}
+
+static inline int vnc_and_bits(const uint32_t *d1, const uint32_t *d2,
+ int nb_words)
+{
+ int i;
+ for(i = 0; i < nb_words; i++) {
+ if ((d1[i] & d2[i]) != 0)
+ return 1;
+ }
+ return 0;
+}
+
+static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h)
+{
+ VncState *vs = ds->opaque;
+ int i;
+
+ h += y;
+
+ /* round x down to ensure the loop only spans one 16-pixel block per,
+ iteration. otherwise, if (x % 16) != 0, the last iteration may span
+ two 16-pixel blocks but we only mark the first as dirty
+ */
+ w += (x % 16);
+ x -= (x % 16);
+
+ x = MIN(x, vs->width);
+ y = MIN(y, vs->height);
+ w = MIN(x + w, vs->width) - x;
+ h = MIN(h, vs->height);
+
+ for (; y < h; y++)
+ for (i = 0; i < w; i += 16)
+ vnc_set_bit(vs->dirty_row[y], (x + i) / 16);
+}
+
+static void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
+ int32_t encoding)
+{
+ vnc_write_u16(vs, x);
+ vnc_write_u16(vs, y);
+ vnc_write_u16(vs, w);
+ vnc_write_u16(vs, h);
+
+ vnc_write_s32(vs, encoding);
+}
+
+static void vnc_dpy_resize(DisplayState *ds, int w, int h)
+{
+ int size_changed;
+ VncState *vs = ds->opaque;
+
+ ds->data = qemu_realloc(ds->data, w * h * vs->depth);
+ vs->old_data = qemu_realloc(vs->old_data, w * h * vs->depth);
+
+ if (ds->data == NULL || vs->old_data == NULL) {
+ fprintf(stderr, "vnc: memory allocation failed\n");
+ exit(1);
+ }
+
+ if (ds->depth != vs->depth * 8) {
+ ds->depth = vs->depth * 8;
+ console_color_init(ds);
+ }
+ size_changed = ds->width != w || ds->height != h;
+ ds->width = w;
+ ds->height = h;
+ ds->linesize = w * vs->depth;
+ if (size_changed) {
+ vs->width = ds->width;
+ vs->height = ds->height;
+ if (vs->csock != -1 && vs->has_resize) {
+ vnc_write_u8(vs, 0); /* msg id */
+ vnc_write_u8(vs, 0);
+ vnc_write_u16(vs, 1); /* number of rects */
+ vnc_framebuffer_update(vs, 0, 0, ds->width, ds->height, -223);
+ vnc_flush(vs);
+ }
+ }
+
+ memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
+ memset(vs->old_data, 42, ds_get_linesize(vs->ds) * ds_get_height(vs->ds));
+}
+
+/* fastest code */
+static void vnc_write_pixels_copy(VncState *vs, void *pixels, int size)
+{
+ vnc_write(vs, pixels, size);
+}
+
+/* slowest but generic code. */
+static void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
+{
+ uint8_t r, g, b;
+
+ r = ((v >> vs->server_red_shift) & vs->server_red_max) * (vs->client_red_max + 1) /
+ (vs->server_red_max + 1);
+ g = ((v >> vs->server_green_shift) & vs->server_green_max) * (vs->client_green_max + 1) /
+ (vs->server_green_max + 1);
+ b = ((v >> vs->server_blue_shift) & vs->server_blue_max) * (vs->client_blue_max + 1) /
+ (vs->server_blue_max + 1);
+ v = (r << vs->client_red_shift) |
+ (g << vs->client_green_shift) |
+ (b << vs->client_blue_shift);
+ switch(vs->pix_bpp) {
+ case 1:
+ buf[0] = v;
+ break;
+ case 2:
+ if (vs->pix_big_endian) {
+ buf[0] = v >> 8;
+ buf[1] = v;
+ } else {
+ buf[1] = v >> 8;
+ buf[0] = v;
+ }
+ break;
+ default:
+ case 4:
+ if (vs->pix_big_endian) {
+ buf[0] = v >> 24;
+ buf[1] = v >> 16;
+ buf[2] = v >> 8;
+ buf[3] = v;
+ } else {
+ buf[3] = v >> 24;
+ buf[2] = v >> 16;
+ buf[1] = v >> 8;
+ buf[0] = v;
+ }
+ break;
+ }
+}
+
+static void vnc_write_pixels_generic(VncState *vs, void *pixels1, int size)
+{
+ uint8_t buf[4];
+
+ if (vs->depth == 4) {
+ uint32_t *pixels = pixels1;
+ int n, i;
+ n = size >> 2;
+ for(i = 0; i < n; i++) {
+ vnc_convert_pixel(vs, buf, pixels[i]);
+ vnc_write(vs, buf, vs->pix_bpp);
+ }
+ } else if (vs->depth == 2) {
+ uint16_t *pixels = pixels1;
+ int n, i;
+ n = size >> 1;
+ for(i = 0; i < n; i++) {
+ vnc_convert_pixel(vs, buf, pixels[i]);
+ vnc_write(vs, buf, vs->pix_bpp);
+ }
+ } else if (vs->depth == 1) {
+ uint8_t *pixels = pixels1;
+ int n, i;
+ n = size;
+ for(i = 0; i < n; i++) {
+ vnc_convert_pixel(vs, buf, pixels[i]);
+ vnc_write(vs, buf, vs->pix_bpp);
+ }
+ } else {
+ fprintf(stderr, "vnc_write_pixels_generic: VncState color depth not supported\n");
+ }
+}
+
+static void send_framebuffer_update_raw(VncState *vs, int x, int y, int w, int h)
+{
+ int i;
+ uint8_t *row;
+
+ vnc_framebuffer_update(vs, x, y, w, h, 0);
+
+ row = ds_get_data(vs->ds) + y * ds_get_linesize(vs->ds) + x * vs->depth;
+ for (i = 0; i < h; i++) {
+ vs->write_pixels(vs, row, w * vs->depth);
+ row += ds_get_linesize(vs->ds);
+ }
+}
+
+static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h)
+{
+ ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F);
+ ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F);
+}
+
+#define BPP 8
+#include "vnchextile.h"
+#undef BPP
+
+#define BPP 16
+#include "vnchextile.h"
+#undef BPP
+
+#define BPP 32
+#include "vnchextile.h"
+#undef BPP
+
+#define GENERIC
+#define BPP 8
+#include "vnchextile.h"
+#undef BPP
+#undef GENERIC
+
+#define GENERIC
+#define BPP 16
+#include "vnchextile.h"
+#undef BPP
+#undef GENERIC
+
+#define GENERIC
+#define BPP 32
+#include "vnchextile.h"
+#undef BPP
+#undef GENERIC
+
+static void send_framebuffer_update_hextile(VncState *vs, int x, int y, int w, int h)
+{
+ int i, j;
+ int has_fg, has_bg;
+ uint8_t *last_fg, *last_bg;
+
+ vnc_framebuffer_update(vs, x, y, w, h, 5);
+
+ last_fg = (uint8_t *) malloc(vs->depth);
+ last_bg = (uint8_t *) malloc(vs->depth);
+ has_fg = has_bg = 0;
+ for (j = y; j < (y + h); j += 16) {
+ for (i = x; i < (x + w); i += 16) {
+ vs->send_hextile_tile(vs, i, j,
+ MIN(16, x + w - i), MIN(16, y + h - j),
+ last_bg, last_fg, &has_bg, &has_fg);
+ }
+ }
+ free(last_fg);
+ free(last_bg);
+
+}
+
+static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
+{
+ if (vs->has_hextile)
+ send_framebuffer_update_hextile(vs, x, y, w, h);
+ else
+ send_framebuffer_update_raw(vs, x, y, w, h);
+}
+
+static void vnc_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
+{
+ int src, dst;
+ uint8_t *src_row;
+ uint8_t *dst_row;
+ char *old_row;
+ int y = 0;
+ int pitch = ds_get_linesize(ds);
+ VncState *vs = ds->opaque;
+
+ vnc_update_client(vs);
+
+ if (dst_y > src_y) {
+ y = h - 1;
+ pitch = -pitch;
+ }
+
+ src = (ds_get_linesize(ds) * (src_y + y) + vs->depth * src_x);
+ dst = (ds_get_linesize(ds) * (dst_y + y) + vs->depth * dst_x);
+
+ src_row = ds_get_data(ds) + src;
+ dst_row = ds_get_data(ds) + dst;
+ old_row = vs->old_data + dst;
+
+ for (y = 0; y < h; y++) {
+ memmove(old_row, src_row, w * vs->depth);
+ memmove(dst_row, src_row, w * vs->depth);
+ src_row += pitch;
+ dst_row += pitch;
+ old_row += pitch;
+ }
+
+ vnc_write_u8(vs, 0); /* msg id */
+ vnc_write_u8(vs, 0);
+ vnc_write_u16(vs, 1); /* number of rects */
+ vnc_framebuffer_update(vs, dst_x, dst_y, w, h, 1);
+ vnc_write_u16(vs, src_x);
+ vnc_write_u16(vs, src_y);
+ vnc_flush(vs);
+}
+
+static int find_dirty_height(VncState *vs, int y, int last_x, int x)
+{
+ int h;
+
+ for (h = 1; h < (vs->height - y); h++) {
+ int tmp_x;
+ if (!vnc_get_bit(vs->dirty_row[y + h], last_x))
+ break;
+ for (tmp_x = last_x; tmp_x < x; tmp_x++)
+ vnc_clear_bit(vs->dirty_row[y + h], tmp_x);
+ }
+
+ return h;
+}
+
+static void vnc_update_client(void *opaque)
+{
+ VncState *vs = opaque;
+
+ if (vs->need_update && vs->csock != -1) {
+ int y;
+ uint8_t *row;
+ char *old_row;
+ uint32_t width_mask[VNC_DIRTY_WORDS];
+ int n_rectangles;
+ int saved_offset;
+ int has_dirty = 0;
+
+#if 0
+ TODO CHECK DFG
+ vga_hw_update();
+#endif
+
+ vnc_set_bits(width_mask, (vs->width / 16), VNC_DIRTY_WORDS);
+
+ /* Walk through the dirty map and eliminate tiles that
+ really aren't dirty */
+ row = ds_get_data(vs->ds);
+ old_row = vs->old_data;
+
+ for (y = 0; y < vs->height; y++) {
+ if (vnc_and_bits(vs->dirty_row[y], width_mask, VNC_DIRTY_WORDS)) {
+ int x;
+ uint8_t *ptr;
+ char *old_ptr;
+
+ ptr = row;
+ old_ptr = (char*)old_row;
+
+ for (x = 0; x < ds_get_width(vs->ds); x += 16) {
+ if (memcmp(old_ptr, ptr, 16 * vs->depth) == 0) {
+ vnc_clear_bit(vs->dirty_row[y], (x / 16));
+ } else {
+ has_dirty = 1;
+ memcpy(old_ptr, ptr, 16 * vs->depth);
+ }
+
+ ptr += 16 * vs->depth;
+ old_ptr += 16 * vs->depth;
+ }
+ }
+
+ row += ds_get_linesize(vs->ds);
+ old_row += ds_get_linesize(vs->ds);
+ }
+
+ if (!has_dirty && !vs->audio_cap) {
+ qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
+ return;
+ }
+
+ /* Count rectangles */
+ n_rectangles = 0;
+ vnc_write_u8(vs, 0); /* msg id */
+ vnc_write_u8(vs, 0);
+ saved_offset = vs->output.offset;
+ vnc_write_u16(vs, 0);
+
+ for (y = 0; y < vs->height; y++) {
+ int x;
+ int last_x = -1;
+ for (x = 0; x < vs->width / 16; x++) {
+ if (vnc_get_bit(vs->dirty_row[y], x)) {
+ if (last_x == -1) {
+ last_x = x;
+ }
+ vnc_clear_bit(vs->dirty_row[y], x);
+ } else {
+ if (last_x != -1) {
+ int h = find_dirty_height(vs, y, last_x, x);
+ send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
+ n_rectangles++;
+ }
+ last_x = -1;
+ }
+ }
+ if (last_x != -1) {
+ int h = find_dirty_height(vs, y, last_x, x);
+ send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
+ n_rectangles++;
+ }
+ }
+ vs->output.buffer[saved_offset] = (n_rectangles >> 8) & 0xFF;
+ vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF;
+ vnc_flush(vs);
+
+ }
+
+ if (vs->csock != -1) {
+ qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
+ }
+
+}
+
+static int vnc_listen_poll(void *opaque)
+{
+ VncState *vs = opaque;
+ if (vs->csock == -1)
+ return 1;
+ return 0;
+}
+
+static void buffer_reserve(Buffer *buffer, size_t len)
+{
+ if ((buffer->capacity - buffer->offset) < len) {
+ buffer->capacity += (len + 1024);
+ buffer->buffer = qemu_realloc(buffer->buffer, buffer->capacity);
+ if (buffer->buffer == NULL) {
+ fprintf(stderr, "vnc: out of memory\n");
+ exit(1);
+ }
+ }
+}
+
+static int buffer_empty(Buffer *buffer)
+{
+ return buffer->offset == 0;
+}
+
+static uint8_t *buffer_end(Buffer *buffer)
+{
+ return buffer->buffer + buffer->offset;
+}
+
+static void buffer_reset(Buffer *buffer)
+{
+ buffer->offset = 0;
+}
+
+static void buffer_append(Buffer *buffer, const void *data, size_t len)
+{
+ memcpy(buffer->buffer + buffer->offset, data, len);
+ buffer->offset += len;
+}
+
+/* audio */
+static void audio_capture_notify(void *opaque, audcnotification_e cmd)
+{
+ VncState *vs = opaque;
+
+ switch (cmd) {
+ case AUD_CNOTIFY_DISABLE:
+ vnc_write_u8(vs, 255);
+ vnc_write_u8(vs, 1);
+ vnc_write_u16(vs, 0);
+ vnc_flush(vs);
+ break;
+
+ case AUD_CNOTIFY_ENABLE:
+ vnc_write_u8(vs, 255);
+ vnc_write_u8(vs, 1);
+ vnc_write_u16(vs, 1);
+ vnc_flush(vs);
+ break;
+ }
+}
+
+static void audio_capture_destroy(void *opaque)
+{
+}
+
+static void audio_capture(void *opaque, void *buf, int size)
+{
+ VncState *vs = opaque;
+
+ vnc_write_u8(vs, 255);
+ vnc_write_u8(vs, 1);
+ vnc_write_u16(vs, 2);
+ vnc_write_u32(vs, size);
+ vnc_write(vs, buf, size);
+ vnc_flush(vs);
+}
+
+static void audio_add(VncState *vs)
+{
+ struct audio_capture_ops ops;
+
+ if (vs->audio_cap) {
+ term_printf ("audio already running\n");
+ return;
+ }
+
+ ops.notify = audio_capture_notify;
+ ops.destroy = audio_capture_destroy;
+ ops.capture = audio_capture;
+
+ vs->audio_cap = AUD_add_capture(NULL, &vs->as, &ops, vs);
+ if (!vs->audio_cap) {
+ term_printf ("Failed to add audio capture\n");
+ }
+}
+
+static void audio_del(VncState *vs)
+{
+ if (vs->audio_cap) {
+ AUD_del_capture(vs->audio_cap, vs);
+ vs->audio_cap = NULL;
+ }
+}
+
+static int vnc_client_io_error(VncState *vs, int ret, int last_errno)
+{
+ if (ret == 0 || ret == -1) {
+ if (ret == -1) {
+ switch (last_errno) {
+ case EINTR:
+ case EAGAIN:
+#ifdef _WIN32
+ case WSAEWOULDBLOCK:
+#endif
+ return 0;
+ default:
+ break;
+ }
+ }
+
+ VNC_DEBUG("Closing down client sock %d %d\n", ret, ret < 0 ? last_errno : 0);
+ qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
+ closesocket(vs->csock);
+ vs->csock = -1;
+ gui_notify_idle(1);
+ /*vs->ds->idle = 1;*/
+ buffer_reset(&vs->input);
+ buffer_reset(&vs->output);
+ vs->need_update = 0;
+#ifdef CONFIG_VNC_TLS
+ if (vs->tls_session) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ }
+ vs->wiremode = VNC_WIREMODE_CLEAR;
+#endif /* CONFIG_VNC_TLS */
+ audio_del(vs);
+ return 0;
+ }
+ return ret;
+}
+
+static void vnc_client_error(VncState *vs)
+{
+ vnc_client_io_error(vs, -1, EINVAL);
+}
+
+static void vnc_client_write(void *opaque)
+{
+ long ret;
+ VncState *vs = opaque;
+
+#ifdef CONFIG_VNC_TLS
+ if (vs->tls_session) {
+ ret = gnutls_write(vs->tls_session, vs->output.buffer, vs->output.offset);
+ if (ret < 0) {
+ if (ret == GNUTLS_E_AGAIN)
+ errno = EAGAIN;
+ else
+ errno = EIO;
+ ret = -1;
+ }
+ } else
+#endif /* CONFIG_VNC_TLS */
+ ret = send(vs->csock, vs->output.buffer, vs->output.offset, 0);
+ ret = vnc_client_io_error(vs, ret, socket_error());
+ if (!ret)
+ return;
+
+ memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret));
+ vs->output.offset -= ret;
+
+ if (vs->output.offset == 0) {
+ qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
+ }
+}
+
+static void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
+{
+ vs->read_handler = func;
+ vs->read_handler_expect = expecting;
+}
+
+static void vnc_client_read(void *opaque)
+{
+ VncState *vs = opaque;
+ long ret;
+
+ buffer_reserve(&vs->input, 4096);
+
+#ifdef CONFIG_VNC_TLS
+ if (vs->tls_session) {
+ ret = gnutls_read(vs->tls_session, buffer_end(&vs->input), 4096);
+ if (ret < 0) {
+ if (ret == GNUTLS_E_AGAIN)
+ errno = EAGAIN;
+ else
+ errno = EIO;
+ ret = -1;
+ }
+ } else
+#endif /* CONFIG_VNC_TLS */
+ ret = recv(vs->csock, buffer_end(&vs->input), 4096, 0);
+ ret = vnc_client_io_error(vs, ret, socket_error());
+ if (!ret)
+ return;
+
+ vs->input.offset += ret;
+
+ while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
+ size_t len = vs->read_handler_expect;
+ int ret;
+
+ ret = vs->read_handler(vs, vs->input.buffer, len);
+ if (vs->csock == -1)
+ return;
+
+ if (!ret) {
+ memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len));
+ vs->input.offset -= len;
+ } else {
+ vs->read_handler_expect = ret;
+ }
+ }
+}
+
+static void vnc_write(VncState *vs, const void *data, size_t len)
+{
+ buffer_reserve(&vs->output, len);
+
+ if (buffer_empty(&vs->output)) {
+ qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
+ }
+
+ buffer_append(&vs->output, data, len);
+}
+
+static void vnc_write_s32(VncState *vs, int32_t value)
+{
+ vnc_write_u32(vs, *(uint32_t *)&value);
+}
+
+static void vnc_write_u32(VncState *vs, uint32_t value)
+{
+ uint8_t buf[4];
+
+ buf[0] = (value >> 24) & 0xFF;
+ buf[1] = (value >> 16) & 0xFF;
+ buf[2] = (value >> 8) & 0xFF;
+ buf[3] = value & 0xFF;
+
+ vnc_write(vs, buf, 4);
+}
+
+static void vnc_write_u16(VncState *vs, uint16_t value)
+{
+ uint8_t buf[2];
+
+ buf[0] = (value >> 8) & 0xFF;
+ buf[1] = value & 0xFF;
+
+ vnc_write(vs, buf, 2);
+}
+
+static void vnc_write_u8(VncState *vs, uint8_t value)
+{
+ vnc_write(vs, (char *)&value, 1);
+}
+
+static void vnc_flush(VncState *vs)
+{
+ if (vs->output.offset)
+ vnc_client_write(vs);
+}
+
+static uint8_t read_u8(uint8_t *data, size_t offset)
+{
+ return data[offset];
+}
+
+static uint16_t read_u16(uint8_t *data, size_t offset)
+{
+ return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
+}
+
+static int32_t read_s32(uint8_t *data, size_t offset)
+{
+ return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3]);
+}
+
+static uint32_t read_u32(uint8_t *data, size_t offset)
+{
+ return ((data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3]);
+}
+
+#ifdef CONFIG_VNC_TLS
+static ssize_t vnc_tls_push(gnutls_transport_ptr_t transport,
+ const void *data,
+ size_t len) {
+ struct VncState *vs = (struct VncState *)transport;
+ int ret;
+
+ retry:
+ ret = send(vs->csock, data, len, 0);
+ if (ret < 0) {
+ if (errno == EINTR)
+ goto retry;
+ return -1;
+ }
+ return ret;
+}
+
+
+static ssize_t vnc_tls_pull(gnutls_transport_ptr_t transport,
+ void *data,
+ size_t len) {
+ struct VncState *vs = (struct VncState *)transport;
+ int ret;
+
+ retry:
+ ret = recv(vs->csock, data, len, 0);
+ if (ret < 0) {
+ if (errno == EINTR)
+ goto retry;
+ return -1;
+ }
+ return ret;
+}
+#endif /* CONFIG_VNC_TLS */
+
+static void client_cut_text(VncState *vs, size_t len, uint8_t *text)
+{
+}
+
+static void check_pointer_type_change(VncState *vs, int absolute)
+{
+ if (vs->has_pointer_type_change && vs->absolute != absolute) {
+ vnc_write_u8(vs, 0);
+ vnc_write_u8(vs, 0);
+ vnc_write_u16(vs, 1);
+ vnc_framebuffer_update(vs, absolute, 0,
+ ds_get_width(vs->ds), ds_get_height(vs->ds), -257);
+ vnc_flush(vs);
+ }
+ vs->absolute = absolute;
+}
+
+static void pointer_event(VncState *vs, int button_mask, int x, int y)
+{
+ int buttons = 0;
+ int dz = 0;
+
+ if (button_mask & 0x01)
+ buttons |= MOUSE_EVENT_LBUTTON;
+ if (button_mask & 0x02)
+ buttons |= MOUSE_EVENT_MBUTTON;
+ if (button_mask & 0x04)
+ buttons |= MOUSE_EVENT_RBUTTON;
+ if (button_mask & 0x08)
+ dz = -1;
+ if (button_mask & 0x10)
+ dz = 1;
+
+ if (vs->absolute) {
+ kbd_mouse_event(x * 0x7FFF / (ds_get_width(vs->ds) - 1),
+ y * 0x7FFF / (ds_get_height(vs->ds) - 1),
+ dz, buttons);
+ } else if (vs->has_pointer_type_change) {
+ x -= 0x7FFF;
+ y -= 0x7FFF;
+
+ kbd_mouse_event(x, y, dz, buttons);
+ } else {
+ if (vs->last_x != -1)
+ kbd_mouse_event(x - vs->last_x,
+ y - vs->last_y,
+ dz, buttons);
+ vs->last_x = x;
+ vs->last_y = y;
+ }
+
+ check_pointer_type_change(vs, kbd_mouse_is_absolute());
+}
+
+static void reset_keys(VncState *vs)
+{
+ int i;
+ for(i = 0; i < 256; i++) {
+ if (vs->modifiers_state[i]) {
+ if (i & 0x80)
+ kbd_put_keycode(0xe0);
+ kbd_put_keycode(i | 0x80);
+ vs->modifiers_state[i] = 0;
+ }
+ }
+}
+
+static void press_key(VncState *vs, int keysym)
+{
+ kbd_put_keycode(keysym2scancode(vs->kbd_layout, keysym) & 0x7f);
+ kbd_put_keycode(keysym2scancode(vs->kbd_layout, keysym) | 0x80);
+}
+
+static void do_key_event(VncState *vs, int down, int keycode, int sym)
+{
+ /* QEMU console switch */
+ switch(keycode) {
+ case 0x2a: /* Left Shift */
+ case 0x36: /* Right Shift */
+ case 0x1d: /* Left CTRL */
+ case 0x9d: /* Right CTRL */
+ case 0x38: /* Left ALT */
+ case 0xb8: /* Right ALT */
+ if (down)
+ vs->modifiers_state[keycode] = 1;
+ else
+ vs->modifiers_state[keycode] = 0;
+ break;
+ case 0x02 ... 0x0a: /* '1' to '9' keys */
+ if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
+ /* Reset the modifiers sent to the current console */
+ reset_keys(vs);
+ gui_notify_console_select(keycode - 0x02);
+ return;
+ }
+ break;
+ case 0x3a: /* CapsLock */
+ case 0x45: /* NumLock */
+ if (!down)
+ vs->modifiers_state[keycode] ^= 1;
+ break;
+ }
+
+ if (keycode_is_keypad(vs->kbd_layout, keycode)) {
+ /* If the numlock state needs to change then simulate an additional
+ keypress before sending this one. This will happen if the user
+ toggles numlock away from the VNC window.
+ */
+ if (keysym_is_numlock(vs->kbd_layout, sym & 0xFFFF)) {
+ if (!vs->modifiers_state[0x45]) {
+ vs->modifiers_state[0x45] = 1;
+ press_key(vs, 0xff7f);
+ }
+ } else {
+ if (vs->modifiers_state[0x45]) {
+ vs->modifiers_state[0x45] = 0;
+ press_key(vs, 0xff7f);
+ }
+ }
+ }
+
+ if (/*gui_is_graphic_console() DFG TODO */ !kbd_in_terminal_mode) {
+ if (keycode & 0x80)
+ kbd_put_keycode(0xe0);
+ if (down)
+ kbd_put_keycode(keycode & 0x7f);
+ else
+ kbd_put_keycode(keycode | 0x80);
+ } else {
+ /* QEMU console emulation */
+ if (down) {
+ switch (keycode) {
+ case 0x2a: /* Left Shift */
+ case 0x36: /* Right Shift */
+ case 0x1d: /* Left CTRL */
+ case 0x9d: /* Right CTRL */
+ case 0x38: /* Left ALT */
+ case 0xb8: /* Right ALT */
+ break;
+ case 0xc8:
+ gui_notify_term_key(QEMU_KEY_UP);
+ break;
+ case 0xd0:
+ gui_notify_term_key(QEMU_KEY_DOWN);
+ break;
+ case 0xcb:
+ gui_notify_term_key(QEMU_KEY_LEFT);
+ break;
+ case 0xcd:
+ gui_notify_term_key(QEMU_KEY_RIGHT);
+ break;
+ case 0xd3:
+ gui_notify_term_key(QEMU_KEY_DELETE);
+ break;
+ case 0xc7:
+ gui_notify_term_key(QEMU_KEY_HOME);
+ break;
+ case 0xcf:
+ gui_notify_term_key(QEMU_KEY_END);
+ break;
+ case 0xc9:
+ gui_notify_term_key(QEMU_KEY_PAGEUP);
+ break;
+ case 0xd1:
+ gui_notify_term_key(QEMU_KEY_PAGEDOWN);
+ break;
+ default:
+ gui_notify_term_key(sym);
+ break;
+ }
+ }
+ }
+}
+
+static void key_event(VncState *vs, int down, uint32_t sym)
+{
+ int keycode;
+
+ if (sym >= 'A' && sym <= 'Z' && /*gui_is_graphic_console()*/ !kbd_in_terminal_mode)
+ sym = sym - 'A' + 'a';
+
+ keycode = keysym2scancode(vs->kbd_layout, sym & 0xFFFF);
+ do_key_event(vs, down, keycode, sym);
+}
+
+static void ext_key_event(VncState *vs, int down,
+ uint32_t sym, uint16_t keycode)
+{
+ /* if the user specifies a keyboard layout, always use it */
+ if (keyboard_layout)
+ key_event(vs, down, sym);
+ else
+ do_key_event(vs, down, keycode, sym);
+}
+
+static void framebuffer_update_request(VncState *vs, int incremental,
+ int x_position, int y_position,
+ int w, int h)
+{
+ if (x_position > ds_get_width(vs->ds))
+ x_position = ds_get_width(vs->ds);
+ if (y_position > ds_get_height(vs->ds))
+ y_position = ds_get_height(vs->ds);
+ if (x_position + w >= ds_get_width(vs->ds))
+ w = ds_get_width(vs->ds) - x_position;
+ if (y_position + h >= ds_get_height(vs->ds))
+ h = ds_get_height(vs->ds) - y_position;
+
+ int i;
+ vs->need_update = 1;
+ if (!incremental) {
+ char *old_row = vs->old_data + y_position * ds_get_linesize(vs->ds);
+
+ for (i = 0; i < h; i++) {
+ vnc_set_bits(vs->dirty_row[y_position + i],
+ (ds_get_width(vs->ds) / 16), VNC_DIRTY_WORDS);
+ memset(old_row, 42, ds_get_width(vs->ds) * vs->depth);
+ old_row += ds_get_linesize(vs->ds);
+ }
+ }
+}
+
+static void send_ext_key_event_ack(VncState *vs)
+{
+ vnc_write_u8(vs, 0);
+ vnc_write_u8(vs, 0);
+ vnc_write_u16(vs, 1);
+ vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds), -258);
+ vnc_flush(vs);
+}
+
+static void send_ext_audio_ack(VncState *vs)
+{
+ vnc_write_u8(vs, 0);
+ vnc_write_u8(vs, 0);
+ vnc_write_u16(vs, 1);
+ vnc_framebuffer_update(vs, 0, 0, ds_get_width(vs->ds), ds_get_height(vs->ds), -259);
+ vnc_flush(vs);
+}
+
+static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
+{
+ int i;
+
+ vs->has_hextile = 0;
+ vs->has_resize = 0;
+ vs->has_pointer_type_change = 0;
+ vs->has_WMVi = 0;
+ vs->absolute = -1;
+ vs->ds->dpy_copy = NULL;
+
+ for (i = n_encodings - 1; i >= 0; i--) {
+ switch (encodings[i]) {
+ case 0: /* Raw */
+ vs->has_hextile = 0;
+ break;
+ case 1: /* CopyRect */
+ vs->ds->dpy_copy = vnc_copy;
+ break;
+ case 5: /* Hextile */
+ vs->has_hextile = 1;
+ break;
+ case -223: /* DesktopResize */
+ vs->has_resize = 1;
+ break;
+ case -257:
+ vs->has_pointer_type_change = 1;
+ break;
+ case -258:
+ send_ext_key_event_ack(vs);
+ break;
+ case -259:
+ send_ext_audio_ack(vs);
+ break;
+ case 0x574D5669:
+ vs->has_WMVi = 1;
+ break;
+ default:
+ break;
+ }
+ }
+
+ check_pointer_type_change(vs, kbd_mouse_is_absolute());
+}
+
+static void set_pixel_format(VncState *vs,
+ int bits_per_pixel, int depth,
+ int big_endian_flag, int true_color_flag,
+ int red_max, int green_max, int blue_max,
+ int red_shift, int green_shift, int blue_shift)
+{
+ int host_big_endian_flag;
+
+#ifdef WORDS_BIGENDIAN
+ host_big_endian_flag = 1;
+#else
+ host_big_endian_flag = 0;
+#endif
+ if (!true_color_flag) {
+ fail:
+ vnc_client_error(vs);
+ return;
+ }
+ if (bits_per_pixel == 32 &&
+ bits_per_pixel == vs->depth * 8 &&
+ host_big_endian_flag == big_endian_flag &&
+ red_max == 0xff && green_max == 0xff && blue_max == 0xff &&
+ red_shift == 16 && green_shift == 8 && blue_shift == 0) {
+ vs->depth = 4;
+ vs->write_pixels = vnc_write_pixels_copy;
+ vs->send_hextile_tile = send_hextile_tile_32;
+ } else
+ if (bits_per_pixel == 16 &&
+ bits_per_pixel == vs->depth * 8 &&
+ host_big_endian_flag == big_endian_flag &&
+ red_max == 31 && green_max == 63 && blue_max == 31 &&
+ red_shift == 11 && green_shift == 5 && blue_shift == 0) {
+ vs->depth = 2;
+ vs->write_pixels = vnc_write_pixels_copy;
+ vs->send_hextile_tile = send_hextile_tile_16;
+ } else
+ if (bits_per_pixel == 8 &&
+ bits_per_pixel == vs->depth * 8 &&
+ red_max == 7 && green_max == 7 && blue_max == 3 &&
+ red_shift == 5 && green_shift == 2 && blue_shift == 0) {
+ vs->depth = 1;
+ vs->write_pixels = vnc_write_pixels_copy;
+ vs->send_hextile_tile = send_hextile_tile_8;
+ } else
+ {
+ /* generic and slower case */
+ if (bits_per_pixel != 8 &&
+ bits_per_pixel != 16 &&
+ bits_per_pixel != 32)
+ goto fail;
+ if (vs->depth == 4) {
+ vs->send_hextile_tile = send_hextile_tile_generic_32;
+ } else if (vs->depth == 2) {
+ vs->send_hextile_tile = send_hextile_tile_generic_16;
+ } else {
+ vs->send_hextile_tile = send_hextile_tile_generic_8;
+ }
+
+ vs->pix_big_endian = big_endian_flag;
+ vs->write_pixels = vnc_write_pixels_generic;
+ }
+
+ vs->client_red_shift = red_shift;
+ vs->client_red_max = red_max;
+ vs->client_green_shift = green_shift;
+ vs->client_green_max = green_max;
+ vs->client_blue_shift = blue_shift;
+ vs->client_blue_max = blue_max;
+ vs->pix_bpp = bits_per_pixel / 8;
+
+#if 0
+ DFG TODO
+ vga_hw_invalidate();
+ vga_hw_update();
+#endif
+}
+
+static void pixel_format_message (VncState *vs) {
+ char pad[3] = { 0, 0, 0 };
+
+ vnc_write_u8(vs, vs->depth * 8); /* bits-per-pixel */
+ if (vs->depth == 4) vnc_write_u8(vs, 24); /* depth */
+ else vnc_write_u8(vs, vs->depth * 8); /* depth */
+
+#ifdef WORDS_BIGENDIAN
+ vnc_write_u8(vs, 1); /* big-endian-flag */
+#else
+ vnc_write_u8(vs, 0); /* big-endian-flag */
+#endif
+ vnc_write_u8(vs, 1); /* true-color-flag */
+ if (vs->depth == 4) {
+ vnc_write_u16(vs, 0xFF); /* red-max */
+ vnc_write_u16(vs, 0xFF); /* green-max */
+ vnc_write_u16(vs, 0xFF); /* blue-max */
+ vnc_write_u8(vs, 16); /* red-shift */
+ vnc_write_u8(vs, 8); /* green-shift */
+ vnc_write_u8(vs, 0); /* blue-shift */
+ vs->send_hextile_tile = send_hextile_tile_32;
+ } else if (vs->depth == 2) {
+ vnc_write_u16(vs, 31); /* red-max */
+ vnc_write_u16(vs, 63); /* green-max */
+ vnc_write_u16(vs, 31); /* blue-max */
+ vnc_write_u8(vs, 11); /* red-shift */
+ vnc_write_u8(vs, 5); /* green-shift */
+ vnc_write_u8(vs, 0); /* blue-shift */
+ vs->send_hextile_tile = send_hextile_tile_16;
+ } else if (vs->depth == 1) {
+ /* XXX: change QEMU pixel 8 bit pixel format to match the VNC one ? */
+ vnc_write_u16(vs, 7); /* red-max */
+ vnc_write_u16(vs, 7); /* green-max */
+ vnc_write_u16(vs, 3); /* blue-max */
+ vnc_write_u8(vs, 5); /* red-shift */
+ vnc_write_u8(vs, 2); /* green-shift */
+ vnc_write_u8(vs, 0); /* blue-shift */
+ vs->send_hextile_tile = send_hextile_tile_8;
+ }
+ vs->client_red_max = vs->server_red_max;
+ vs->client_green_max = vs->server_green_max;
+ vs->client_blue_max = vs->server_blue_max;
+ vs->client_red_shift = vs->server_red_shift;
+ vs->client_green_shift = vs->server_green_shift;
+ vs->client_blue_shift = vs->server_blue_shift;
+ vs->pix_bpp = vs->depth * 8;
+ vs->write_pixels = vnc_write_pixels_copy;
+
+ vnc_write(vs, pad, 3); /* padding */
+}
+
+static void vnc_colordepth(DisplayState *ds, int depth)
+{
+ int host_big_endian_flag;
+ struct VncState *vs = ds->opaque;
+
+ switch (depth) {
+ case 24:
+ if (ds->depth == 32) return;
+ depth = 32;
+ break;
+ case 15:
+ case 8:
+ case 0:
+ return;
+ default:
+ break;
+ }
+
+#ifdef WORDS_BIGENDIAN
+ host_big_endian_flag = 1;
+#else
+ host_big_endian_flag = 0;
+#endif
+
+ switch (depth) {
+ case 8:
+ vs->depth = depth / 8;
+ vs->server_red_max = 7;
+ vs->server_green_max = 7;
+ vs->server_blue_max = 3;
+ vs->server_red_shift = 5;
+ vs->server_green_shift = 2;
+ vs->server_blue_shift = 0;
+ break;
+ case 16:
+ vs->depth = depth / 8;
+ vs->server_red_max = 31;
+ vs->server_green_max = 63;
+ vs->server_blue_max = 31;
+ vs->server_red_shift = 11;
+ vs->server_green_shift = 5;
+ vs->server_blue_shift = 0;
+ break;
+ case 32:
+ vs->depth = 4;
+ vs->server_red_max = 255;
+ vs->server_green_max = 255;
+ vs->server_blue_max = 255;
+ vs->server_red_shift = 16;
+ vs->server_green_shift = 8;
+ vs->server_blue_shift = 0;
+ break;
+ default:
+ return;
+ }
+
+ if (vs->csock != -1 && vs->has_WMVi) {
+ /* Sending a WMVi message to notify the client*/
+ vnc_write_u8(vs, 0); /* msg id */
+ vnc_write_u8(vs, 0);
+ vnc_write_u16(vs, 1); /* number of rects */
+ vnc_framebuffer_update(vs, 0, 0, ds->width, ds->height, 0x574D5669);
+ pixel_format_message(vs);
+ vnc_flush(vs);
+ } else {
+ if (vs->pix_bpp == 4 && vs->depth == 4 &&
+ host_big_endian_flag == vs->pix_big_endian &&
+ vs->client_red_max == 0xff && vs->client_green_max == 0xff && vs->client_blue_max == 0xff &&
+ vs->client_red_shift == 16 && vs->client_green_shift == 8 && vs->client_blue_shift == 0) {
+ vs->write_pixels = vnc_write_pixels_copy;
+ vs->send_hextile_tile = send_hextile_tile_32;
+ } else if (vs->pix_bpp == 2 && vs->depth == 2 &&
+ host_big_endian_flag == vs->pix_big_endian &&
+ vs->client_red_max == 31 && vs->client_green_max == 63 && vs->client_blue_max == 31 &&
+ vs->client_red_shift == 11 && vs->client_green_shift == 5 && vs->client_blue_shift == 0) {
+ vs->write_pixels = vnc_write_pixels_copy;
+ vs->send_hextile_tile = send_hextile_tile_16;
+ } else if (vs->pix_bpp == 1 && vs->depth == 1 &&
+ host_big_endian_flag == vs->pix_big_endian &&
+ vs->client_red_max == 7 && vs->client_green_max == 7 && vs->client_blue_max == 3 &&
+ vs->client_red_shift == 5 && vs->client_green_shift == 2 && vs->client_blue_shift == 0) {
+ vs->write_pixels = vnc_write_pixels_copy;
+ vs->send_hextile_tile = send_hextile_tile_8;
+ } else {
+ if (vs->depth == 4) {
+ vs->send_hextile_tile = send_hextile_tile_generic_32;
+ } else if (vs->depth == 2) {
+ vs->send_hextile_tile = send_hextile_tile_generic_16;
+ } else {
+ vs->send_hextile_tile = send_hextile_tile_generic_8;
+ }
+ vs->write_pixels = vnc_write_pixels_generic;
+ }
+ }
+}
+
+static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
+{
+ int i;
+ uint16_t limit;
+
+ switch (data[0]) {
+ case 0:
+ if (len == 1)
+ return 20;
+
+ set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
+ read_u8(data, 6), read_u8(data, 7),
+ read_u16(data, 8), read_u16(data, 10),
+ read_u16(data, 12), read_u8(data, 14),
+ read_u8(data, 15), read_u8(data, 16));
+ break;
+ case 2:
+ if (len == 1)
+ return 4;
+
+ if (len == 4) {
+ limit = read_u16(data, 2);
+ if (limit > 0)
+ return 4 + (limit * 4);
+ } else
+ limit = read_u16(data, 2);
+
+ for (i = 0; i < limit; i++) {
+ int32_t val = read_s32(data, 4 + (i * 4));
+ memcpy(data + 4 + (i * 4), &val, sizeof(val));
+ }
+
+ set_encodings(vs, (int32_t *)(data + 4), limit);
+ break;
+ case 3:
+ if (len == 1)
+ return 10;
+
+ framebuffer_update_request(vs,
+ read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
+ read_u16(data, 6), read_u16(data, 8));
+ break;
+ case 4:
+ if (len == 1)
+ return 8;
+
+ key_event(vs, read_u8(data, 1), read_u32(data, 4));
+ break;
+ case 5:
+ if (len == 1)
+ return 6;
+
+ pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
+ break;
+ case 6:
+ if (len == 1)
+ return 8;
+
+ if (len == 8) {
+ uint32_t dlen = read_u32(data, 4);
+ if (dlen > 0)
+ return 8 + dlen;
+ }
+
+ client_cut_text(vs, read_u32(data, 4), data + 8);
+ break;
+ case 255:
+ if (len == 1)
+ return 2;
+
+ switch (read_u8(data, 1)) {
+ case 0:
+ if (len == 2)
+ return 12;
+
+ ext_key_event(vs, read_u16(data, 2),
+ read_u32(data, 4), read_u32(data, 8));
+ break;
+ case 1:
+ if (len == 2)
+ return 4;
+
+ switch (read_u16 (data, 2)) {
+ case 0:
+ audio_add(vs);
+ break;
+ case 1:
+ audio_del(vs);
+ break;
+ case 2:
+ if (len == 4)
+ return 10;
+ switch (read_u8(data, 4)) {
+ case 0: vs->as.fmt = AUD_FMT_U8; break;
+ case 1: vs->as.fmt = AUD_FMT_S8; break;
+ case 2: vs->as.fmt = AUD_FMT_U16; break;
+ case 3: vs->as.fmt = AUD_FMT_S16; break;
+ case 4: vs->as.fmt = AUD_FMT_U32; break;
+ case 5: vs->as.fmt = AUD_FMT_S32; break;
+ default:
+ printf("Invalid audio format %d\n", read_u8(data, 4));
+ vnc_client_error(vs);
+ break;
+ }
+ vs->as.nchannels = read_u8(data, 5);
+ if (vs->as.nchannels != 1 && vs->as.nchannels != 2) {
+ printf("Invalid audio channel coount %d\n",
+ read_u8(data, 5));
+ vnc_client_error(vs);
+ break;
+ }
+ vs->as.freq = read_u32(data, 6);
+ break;
+ default:
+ printf ("Invalid audio message %d\n", read_u8(data, 4));
+ vnc_client_error(vs);
+ break;
+ }
+ break;
+
+ default:
+ printf("Msg: %d\n", read_u16(data, 0));
+ vnc_client_error(vs);
+ break;
+ }
+ break;
+ default:
+ printf("Msg: %d\n", data[0]);
+ vnc_client_error(vs);
+ break;
+ }
+
+ vnc_read_when(vs, protocol_client_msg, 1);
+ return 0;
+}
+
+static int protocol_client_init(VncState *vs, uint8_t *data, size_t len)
+{
+ char buf[1024];
+ int size;
+
+ vs->width = ds_get_width(vs->ds);
+ vs->height = ds_get_height(vs->ds);
+ vnc_write_u16(vs, ds_get_width(vs->ds));
+ vnc_write_u16(vs, ds_get_height(vs->ds));
+
+ pixel_format_message(vs);
+
+ if (qemu_name)
+ size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name);
+ else
+ size = snprintf(buf, sizeof(buf), "QEMU");
+
+ vnc_write_u32(vs, size);
+ vnc_write(vs, buf, size);
+ vnc_flush(vs);
+
+ vnc_read_when(vs, protocol_client_msg, 1);
+
+ return 0;
+}
+
+static void make_challenge(VncState *vs)
+{
+ int i;
+
+ srand(time(NULL)+getpid()+getpid()*987654+rand());
+
+ for (i = 0 ; i < sizeof(vs->challenge) ; i++)
+ vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0));
+}
+
+static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len)
+{
+ unsigned char response[VNC_AUTH_CHALLENGE_SIZE];
+ int i, j, pwlen;
+ unsigned char key[8];
+
+ if (!vs->password || !vs->password[0]) {
+ VNC_DEBUG("No password configured on server");
+ vnc_write_u32(vs, 1); /* Reject auth */
+ if (vs->minor >= 8) {
+ static const char err[] = "Authentication failed";
+ vnc_write_u32(vs, sizeof(err));
+ vnc_write(vs, err, sizeof(err));
+ }
+ vnc_flush(vs);
+ vnc_client_error(vs);
+ return 0;
+ }
+
+ memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE);
+
+ /* Calculate the expected challenge response */
+ pwlen = strlen(vs->password);
+ for (i=0; i<sizeof(key); i++)
+ key[i] = i<pwlen ? vs->password[i] : 0;
+ deskey(key, EN0);
+ for (j = 0; j < VNC_AUTH_CHALLENGE_SIZE; j += 8)
+ des(response+j, response+j);
+
+ /* Compare expected vs actual challenge response */
+ if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) {
+ VNC_DEBUG("Client challenge reponse did not match\n");
+ vnc_write_u32(vs, 1); /* Reject auth */
+ if (vs->minor >= 8) {
+ static const char err[] = "Authentication failed";
+ vnc_write_u32(vs, sizeof(err));
+ vnc_write(vs, err, sizeof(err));
+ }
+ vnc_flush(vs);
+ vnc_client_error(vs);
+ } else {
+ VNC_DEBUG("Accepting VNC challenge response\n");
+ vnc_write_u32(vs, 0); /* Accept auth */
+ vnc_flush(vs);
+
+ vnc_read_when(vs, protocol_client_init, 1);
+ }
+ return 0;
+}
+
+static int start_auth_vnc(VncState *vs)
+{
+ make_challenge(vs);
+ /* Send client a 'random' challenge */
+ vnc_write(vs, vs->challenge, sizeof(vs->challenge));
+ vnc_flush(vs);
+
+ vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge));
+ return 0;
+}
+
+
+#ifdef CONFIG_VNC_TLS
+#define DH_BITS 1024
+static gnutls_dh_params_t dh_params;
+
+static int vnc_tls_initialize(void)
+{
+ static int tlsinitialized = 0;
+
+ if (tlsinitialized)
+ return 1;
+
+ if (gnutls_global_init () < 0)
+ return 0;
+
+ /* XXX ought to re-generate diffie-hellmen params periodically */
+ if (gnutls_dh_params_init (&dh_params) < 0)
+ return 0;
+ if (gnutls_dh_params_generate2 (dh_params, DH_BITS) < 0)
+ return 0;
+
+#if defined(_VNC_DEBUG) && _VNC_DEBUG >= 2
+ gnutls_global_set_log_level(10);
+ gnutls_global_set_log_function(vnc_debug_gnutls_log);
+#endif
+
+ tlsinitialized = 1;
+
+ return 1;
+}
+
+static gnutls_anon_server_credentials vnc_tls_initialize_anon_cred(void)
+{
+ gnutls_anon_server_credentials anon_cred;
+ int ret;
+
+ if ((ret = gnutls_anon_allocate_server_credentials(&anon_cred)) < 0) {
+ VNC_DEBUG("Cannot allocate credentials %s\n", gnutls_strerror(ret));
+ return NULL;
+ }
+
+ gnutls_anon_set_server_dh_params(anon_cred, dh_params);
+
+ return anon_cred;
+}
+
+
+static gnutls_certificate_credentials_t vnc_tls_initialize_x509_cred(VncState *vs)
+{
+ gnutls_certificate_credentials_t x509_cred;
+ int ret;
+
+ if (!vs->x509cacert) {
+ VNC_DEBUG("No CA x509 certificate specified\n");
+ return NULL;
+ }
+ if (!vs->x509cert) {
+ VNC_DEBUG("No server x509 certificate specified\n");
+ return NULL;
+ }
+ if (!vs->x509key) {
+ VNC_DEBUG("No server private key specified\n");
+ return NULL;
+ }
+
+ if ((ret = gnutls_certificate_allocate_credentials(&x509_cred)) < 0) {
+ VNC_DEBUG("Cannot allocate credentials %s\n", gnutls_strerror(ret));
+ return NULL;
+ }
+ if ((ret = gnutls_certificate_set_x509_trust_file(x509_cred,
+ vs->x509cacert,
+ GNUTLS_X509_FMT_PEM)) < 0) {
+ VNC_DEBUG("Cannot load CA certificate %s\n", gnutls_strerror(ret));
+ gnutls_certificate_free_credentials(x509_cred);
+ return NULL;
+ }
+
+ if ((ret = gnutls_certificate_set_x509_key_file (x509_cred,
+ vs->x509cert,
+ vs->x509key,
+ GNUTLS_X509_FMT_PEM)) < 0) {
+ VNC_DEBUG("Cannot load certificate & key %s\n", gnutls_strerror(ret));
+ gnutls_certificate_free_credentials(x509_cred);
+ return NULL;
+ }
+
+ if (vs->x509cacrl) {
+ if ((ret = gnutls_certificate_set_x509_crl_file(x509_cred,
+ vs->x509cacrl,
+ GNUTLS_X509_FMT_PEM)) < 0) {
+ VNC_DEBUG("Cannot load CRL %s\n", gnutls_strerror(ret));
+ gnutls_certificate_free_credentials(x509_cred);
+ return NULL;
+ }
+ }
+
+ gnutls_certificate_set_dh_params (x509_cred, dh_params);
+
+ return x509_cred;
+}
+
+static int vnc_validate_certificate(struct VncState *vs)
+{
+ int ret;
+ unsigned int status;
+ const gnutls_datum_t *certs;
+ unsigned int nCerts, i;
+ time_t now;
+
+ VNC_DEBUG("Validating client certificate\n");
+ if ((ret = gnutls_certificate_verify_peers2 (vs->tls_session, &status)) < 0) {
+ VNC_DEBUG("Verify failed %s\n", gnutls_strerror(ret));
+ return -1;
+ }
+
+ if ((now = time(NULL)) == ((time_t)-1)) {
+ return -1;
+ }
+
+ if (status != 0) {
+ if (status & GNUTLS_CERT_INVALID)
+ VNC_DEBUG("The certificate is not trusted.\n");
+
+ if (status & GNUTLS_CERT_SIGNER_NOT_FOUND)
+ VNC_DEBUG("The certificate hasn't got a known issuer.\n");
+
+ if (status & GNUTLS_CERT_REVOKED)
+ VNC_DEBUG("The certificate has been revoked.\n");
+
+ if (status & GNUTLS_CERT_INSECURE_ALGORITHM)
+ VNC_DEBUG("The certificate uses an insecure algorithm\n");
+
+ return -1;
+ } else {
+ VNC_DEBUG("Certificate is valid!\n");
+ }
+
+ /* Only support x509 for now */
+ if (gnutls_certificate_type_get(vs->tls_session) != GNUTLS_CRT_X509)
+ return -1;
+
+ if (!(certs = gnutls_certificate_get_peers(vs->tls_session, &nCerts)))
+ return -1;
+
+ for (i = 0 ; i < nCerts ; i++) {
+ gnutls_x509_crt_t cert;
+ VNC_DEBUG ("Checking certificate chain %d\n", i);
+ if (gnutls_x509_crt_init (&cert) < 0)
+ return -1;
+
+ if (gnutls_x509_crt_import(cert, &certs[i], GNUTLS_X509_FMT_DER) < 0) {
+ gnutls_x509_crt_deinit (cert);
+ return -1;
+ }
+
+ if (gnutls_x509_crt_get_expiration_time (cert) < now) {
+ VNC_DEBUG("The certificate has expired\n");
+ gnutls_x509_crt_deinit (cert);
+ return -1;
+ }
+
+ if (gnutls_x509_crt_get_activation_time (cert) > now) {
+ VNC_DEBUG("The certificate is not yet activated\n");
+ gnutls_x509_crt_deinit (cert);
+ return -1;
+ }
+
+ if (gnutls_x509_crt_get_activation_time (cert) > now) {
+ VNC_DEBUG("The certificate is not yet activated\n");
+ gnutls_x509_crt_deinit (cert);
+ return -1;
+ }
+
+ gnutls_x509_crt_deinit (cert);
+ }
+
+ return 0;
+}
+
+
+static int start_auth_vencrypt_subauth(VncState *vs)
+{
+ switch (vs->subauth) {
+ case VNC_AUTH_VENCRYPT_TLSNONE:
+ case VNC_AUTH_VENCRYPT_X509NONE:
+ VNC_DEBUG("Accept TLS auth none\n");
+ vnc_write_u32(vs, 0); /* Accept auth completion */
+ vnc_read_when(vs, protocol_client_init, 1);
+ break;
+
+ case VNC_AUTH_VENCRYPT_TLSVNC:
+ case VNC_AUTH_VENCRYPT_X509VNC:
+ VNC_DEBUG("Start TLS auth VNC\n");
+ return start_auth_vnc(vs);
+
+ default: /* Should not be possible, but just in case */
+ VNC_DEBUG("Reject auth %d\n", vs->auth);
+ vnc_write_u8(vs, 1);
+ if (vs->minor >= 8) {
+ static const char err[] = "Unsupported authentication type";
+ vnc_write_u32(vs, sizeof(err));
+ vnc_write(vs, err, sizeof(err));
+ }
+ vnc_client_error(vs);
+ }
+
+ return 0;
+}
+
+static void vnc_handshake_io(void *opaque);
+
+static int vnc_continue_handshake(struct VncState *vs) {
+ int ret;
+
+ if ((ret = gnutls_handshake(vs->tls_session)) < 0) {
+ if (!gnutls_error_is_fatal(ret)) {
+ VNC_DEBUG("Handshake interrupted (blocking)\n");
+ if (!gnutls_record_get_direction(vs->tls_session))
+ qemu_set_fd_handler(vs->csock, vnc_handshake_io, NULL, vs);
+ else
+ qemu_set_fd_handler(vs->csock, NULL, vnc_handshake_io, vs);
+ return 0;
+ }
+ VNC_DEBUG("Handshake failed %s\n", gnutls_strerror(ret));
+ vnc_client_error(vs);
+ return -1;
+ }
+
+ if (vs->x509verify) {
+ if (vnc_validate_certificate(vs) < 0) {
+ VNC_DEBUG("Client verification failed\n");
+ vnc_client_error(vs);
+ return -1;
+ } else {
+ VNC_DEBUG("Client verification passed\n");
+ }
+ }
+
+ VNC_DEBUG("Handshake done, switching to TLS data mode\n");
+ vs->wiremode = VNC_WIREMODE_TLS;
+ qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
+
+ return start_auth_vencrypt_subauth(vs);
+}
+
+static void vnc_handshake_io(void *opaque) {
+ struct VncState *vs = (struct VncState *)opaque;
+
+ VNC_DEBUG("Handshake IO continue\n");
+ vnc_continue_handshake(vs);
+}
+
+#define NEED_X509_AUTH(vs) \
+ ((vs)->subauth == VNC_AUTH_VENCRYPT_X509NONE || \
+ (vs)->subauth == VNC_AUTH_VENCRYPT_X509VNC || \
+ (vs)->subauth == VNC_AUTH_VENCRYPT_X509PLAIN)
+
+
+static int vnc_start_tls(struct VncState *vs) {
+ static const int cert_type_priority[] = { GNUTLS_CRT_X509, 0 };
+ static const int protocol_priority[]= { GNUTLS_TLS1_1, GNUTLS_TLS1_0, GNUTLS_SSL3, 0 };
+ static const int kx_anon[] = {GNUTLS_KX_ANON_DH, 0};
+ static const int kx_x509[] = {GNUTLS_KX_DHE_DSS, GNUTLS_KX_RSA, GNUTLS_KX_DHE_RSA, GNUTLS_KX_SRP, 0};
+
+ VNC_DEBUG("Do TLS setup\n");
+ if (vnc_tls_initialize() < 0) {
+ VNC_DEBUG("Failed to init TLS\n");
+ vnc_client_error(vs);
+ return -1;
+ }
+ if (vs->tls_session == NULL) {
+ if (gnutls_init(&vs->tls_session, GNUTLS_SERVER) < 0) {
+ vnc_client_error(vs);
+ return -1;
+ }
+
+ if (gnutls_set_default_priority(vs->tls_session) < 0) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ vnc_client_error(vs);
+ return -1;
+ }
+
+ if (gnutls_kx_set_priority(vs->tls_session, NEED_X509_AUTH(vs) ? kx_x509 : kx_anon) < 0) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ vnc_client_error(vs);
+ return -1;
+ }
+
+ if (gnutls_certificate_type_set_priority(vs->tls_session, cert_type_priority) < 0) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ vnc_client_error(vs);
+ return -1;
+ }
+
+ if (gnutls_protocol_set_priority(vs->tls_session, protocol_priority) < 0) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ vnc_client_error(vs);
+ return -1;
+ }
+
+ if (NEED_X509_AUTH(vs)) {
+ gnutls_certificate_server_credentials x509_cred = vnc_tls_initialize_x509_cred(vs);
+ if (!x509_cred) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ vnc_client_error(vs);
+ return -1;
+ }
+ if (gnutls_credentials_set(vs->tls_session, GNUTLS_CRD_CERTIFICATE, x509_cred) < 0) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ gnutls_certificate_free_credentials(x509_cred);
+ vnc_client_error(vs);
+ return -1;
+ }
+ if (vs->x509verify) {
+ VNC_DEBUG("Requesting a client certificate\n");
+ gnutls_certificate_server_set_request (vs->tls_session, GNUTLS_CERT_REQUEST);
+ }
+
+ } else {
+ gnutls_anon_server_credentials anon_cred = vnc_tls_initialize_anon_cred();
+ if (!anon_cred) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ vnc_client_error(vs);
+ return -1;
+ }
+ if (gnutls_credentials_set(vs->tls_session, GNUTLS_CRD_ANON, anon_cred) < 0) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ gnutls_anon_free_server_credentials(anon_cred);
+ vnc_client_error(vs);
+ return -1;
+ }
+ }
+
+ gnutls_transport_set_ptr(vs->tls_session, (gnutls_transport_ptr_t)vs);
+ gnutls_transport_set_push_function(vs->tls_session, vnc_tls_push);
+ gnutls_transport_set_pull_function(vs->tls_session, vnc_tls_pull);
+ }
+
+ VNC_DEBUG("Start TLS handshake process\n");
+ return vnc_continue_handshake(vs);
+}
+
+static int protocol_client_vencrypt_auth(VncState *vs, uint8_t *data, size_t len)
+{
+ int auth = read_u32(data, 0);
+
+ if (auth != vs->subauth) {
+ VNC_DEBUG("Rejecting auth %d\n", auth);
+ vnc_write_u8(vs, 0); /* Reject auth */
+ vnc_flush(vs);
+ vnc_client_error(vs);
+ } else {
+ VNC_DEBUG("Accepting auth %d, starting handshake\n", auth);
+ vnc_write_u8(vs, 1); /* Accept auth */
+ vnc_flush(vs);
+
+ if (vnc_start_tls(vs) < 0) {
+ VNC_DEBUG("Failed to complete TLS\n");
+ return 0;
+ }
+
+ if (vs->wiremode == VNC_WIREMODE_TLS) {
+ VNC_DEBUG("Starting VeNCrypt subauth\n");
+ return start_auth_vencrypt_subauth(vs);
+ } else {
+ VNC_DEBUG("TLS handshake blocked\n");
+ return 0;
+ }
+ }
+ return 0;
+}
+
+static int protocol_client_vencrypt_init(VncState *vs, uint8_t *data, size_t len)
+{
+ if (data[0] != 0 ||
+ data[1] != 2) {
+ VNC_DEBUG("Unsupported VeNCrypt protocol %d.%d\n", (int)data[0], (int)data[1]);
+ vnc_write_u8(vs, 1); /* Reject version */
+ vnc_flush(vs);
+ vnc_client_error(vs);
+ } else {
+ VNC_DEBUG("Sending allowed auth %d\n", vs->subauth);
+ vnc_write_u8(vs, 0); /* Accept version */
+ vnc_write_u8(vs, 1); /* Number of sub-auths */
+ vnc_write_u32(vs, vs->subauth); /* The supported auth */
+ vnc_flush(vs);
+ vnc_read_when(vs, protocol_client_vencrypt_auth, 4);
+ }
+ return 0;
+}
+
+static int start_auth_vencrypt(VncState *vs)
+{
+ /* Send VeNCrypt version 0.2 */
+ vnc_write_u8(vs, 0);
+ vnc_write_u8(vs, 2);
+
+ vnc_read_when(vs, protocol_client_vencrypt_init, 2);
+ return 0;
+}
+#endif /* CONFIG_VNC_TLS */
+
+static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len)
+{
+ /* We only advertise 1 auth scheme at a time, so client
+ * must pick the one we sent. Verify this */
+ if (data[0] != vs->auth) { /* Reject auth */
+ VNC_DEBUG("Reject auth %d\n", (int)data[0]);
+ vnc_write_u32(vs, 1);
+ if (vs->minor >= 8) {
+ static const char err[] = "Authentication failed";
+ vnc_write_u32(vs, sizeof(err));
+ vnc_write(vs, err, sizeof(err));
+ }
+ vnc_client_error(vs);
+ } else { /* Accept requested auth */
+ VNC_DEBUG("Client requested auth %d\n", (int)data[0]);
+ switch (vs->auth) {
+ case VNC_AUTH_NONE:
+ VNC_DEBUG("Accept auth none\n");
+ if (vs->minor >= 8) {
+ vnc_write_u32(vs, 0); /* Accept auth completion */
+ vnc_flush(vs);
+ }
+ vnc_read_when(vs, protocol_client_init, 1);
+ break;
+
+ case VNC_AUTH_VNC:
+ VNC_DEBUG("Start VNC auth\n");
+ return start_auth_vnc(vs);
+
+#ifdef CONFIG_VNC_TLS
+ case VNC_AUTH_VENCRYPT:
+ VNC_DEBUG("Accept VeNCrypt auth\n");;
+ return start_auth_vencrypt(vs);
+#endif /* CONFIG_VNC_TLS */
+
+ default: /* Should not be possible, but just in case */
+ VNC_DEBUG("Reject auth %d\n", vs->auth);
+ vnc_write_u8(vs, 1);
+ if (vs->minor >= 8) {
+ static const char err[] = "Authentication failed";
+ vnc_write_u32(vs, sizeof(err));
+ vnc_write(vs, err, sizeof(err));
+ }
+ vnc_client_error(vs);
+ }
+ }
+ return 0;
+}
+
+static int protocol_version(VncState *vs, uint8_t *version, size_t len)
+{
+ char local[13];
+
+ memcpy(local, version, 12);
+ local[12] = 0;
+
+ if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) {
+ VNC_DEBUG("Malformed protocol version %s\n", local);
+ vnc_client_error(vs);
+ return 0;
+ }
+ VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor);
+ if (vs->major != 3 ||
+ (vs->minor != 3 &&
+ vs->minor != 4 &&
+ vs->minor != 5 &&
+ vs->minor != 7 &&
+ vs->minor != 8)) {
+ VNC_DEBUG("Unsupported client version\n");
+ vnc_write_u32(vs, VNC_AUTH_INVALID);
+ vnc_flush(vs);
+ vnc_client_error(vs);
+ return 0;
+ }
+ /* Some broken clients report v3.4 or v3.5, which spec requires to be treated
+ * as equivalent to v3.3 by servers
+ */
+ if (vs->minor == 4 || vs->minor == 5)
+ vs->minor = 3;
+
+ if (vs->minor == 3) {
+ if (vs->auth == VNC_AUTH_NONE) {
+ VNC_DEBUG("Tell client auth none\n");
+ vnc_write_u32(vs, vs->auth);
+ vnc_flush(vs);
+ vnc_read_when(vs, protocol_client_init, 1);
+ } else if (vs->auth == VNC_AUTH_VNC) {
+ VNC_DEBUG("Tell client VNC auth\n");
+ vnc_write_u32(vs, vs->auth);
+ vnc_flush(vs);
+ start_auth_vnc(vs);
+ } else {
+ VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->auth);
+ vnc_write_u32(vs, VNC_AUTH_INVALID);
+ vnc_flush(vs);
+ vnc_client_error(vs);
+ }
+ } else {
+ VNC_DEBUG("Telling client we support auth %d\n", vs->auth);
+ vnc_write_u8(vs, 1); /* num auth */
+ vnc_write_u8(vs, vs->auth);
+ vnc_read_when(vs, protocol_client_auth, 1);
+ vnc_flush(vs);
+ }
+
+ return 0;
+}
+
+static void vnc_connect(VncState *vs)
+{
+ VNC_DEBUG("New client on socket %d\n", vs->csock);
+ gui_notify_idle(0);
+ /*vs->ds->idle = 0;*/
+ socket_set_nonblock(vs->csock);
+ qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
+ vnc_write(vs, "RFB 003.008\n", 12);
+ vnc_flush(vs);
+ vnc_read_when(vs, protocol_version, 12);
+ memset(vs->old_data, 0, ds_get_linesize(vs->ds) * ds_get_height(vs->ds));
+ memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
+ vs->has_resize = 0;
+ vs->has_hextile = 0;
+ vs->ds->dpy_copy = NULL;
+ vnc_update_client(vs);
+ reset_keys(vs);
+}
+
+static void vnc_listen_read(void *opaque)
+{
+ VncState *vs = opaque;
+ struct sockaddr_in addr;
+ socklen_t addrlen = sizeof(addr);
+
+ /* Catch-up */
+#if 0
+ DFG TODO
+ vga_hw_update();
+#endif
+
+ vs->csock = accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
+ if (vs->csock != -1) {
+ vnc_connect(vs);
+ }
+}
+
+void vnc_display_init(DisplayState *ds)
+{
+ VncState *vs;
+
+ vs = qemu_mallocz(sizeof(VncState));
+ if (!vs)
+ exit(1);
+
+ ds->opaque = vs;
+ /*DFG: TODO
+ ds->idle = 1;*/
+ vnc_state = vs;
+ vs->display = NULL;
+ vs->password = NULL;
+
+ vs->lsock = -1;
+ vs->csock = -1;
+ vs->last_x = -1;
+ vs->last_y = -1;
+
+ vs->ds = ds;
+
+ if (keyboard_layout)
+ vs->kbd_layout = init_keyboard_layout(keyboard_layout);
+ else
+ vs->kbd_layout = init_keyboard_layout("en-us");
+
+ if (!vs->kbd_layout)
+ exit(1);
+
+ vs->timer = qemu_new_timer(rt_clock, vnc_update_client, vs);
+
+ vs->ds->data = NULL;
+ vs->ds->dpy_update = vnc_dpy_update;
+#if 0
+ DFG TODO
+ vs->ds->dpy_resize = vnc_dpy_resize;
+ vs->ds->dpy_refresh = NULL;
+#endif
+ vnc_colordepth(vs->ds, 32);
+ vnc_dpy_resize(vs->ds, 640, 400);
+
+ vs->as.freq = 44100;
+ vs->as.nchannels = 2;
+ vs->as.fmt = AUD_FMT_S16;
+ vs->as.endianness = 0;
+}
+
+#ifdef CONFIG_VNC_TLS
+static int vnc_set_x509_credential(VncState *vs,
+ const char *certdir,
+ const char *filename,
+ char **cred,
+ int ignoreMissing)
+{
+ struct stat sb;
+
+ if (*cred) {
+ qemu_free(*cred);
+ *cred = NULL;
+ }
+
+ if (!(*cred = qemu_malloc(strlen(certdir) + strlen(filename) + 2)))
+ return -1;
+
+ strcpy(*cred, certdir);
+ strcat(*cred, "/");
+ strcat(*cred, filename);
+
+ VNC_DEBUG("Check %s\n", *cred);
+ if (stat(*cred, &sb) < 0) {
+ qemu_free(*cred);
+ *cred = NULL;
+ if (ignoreMissing && errno == ENOENT)
+ return 0;
+ return -1;
+ }
+
+ return 0;
+}
+
+static int vnc_set_x509_credential_dir(VncState *vs,
+ const char *certdir)
+{
+ if (vnc_set_x509_credential(vs, certdir, X509_CA_CERT_FILE, &vs->x509cacert, 0) < 0)
+ goto cleanup;
+ if (vnc_set_x509_credential(vs, certdir, X509_CA_CRL_FILE, &vs->x509cacrl, 1) < 0)
+ goto cleanup;
+ if (vnc_set_x509_credential(vs, certdir, X509_SERVER_CERT_FILE, &vs->x509cert, 0) < 0)
+ goto cleanup;
+ if (vnc_set_x509_credential(vs, certdir, X509_SERVER_KEY_FILE, &vs->x509key, 0) < 0)
+ goto cleanup;
+
+ return 0;
+
+ cleanup:
+ qemu_free(vs->x509cacert);
+ qemu_free(vs->x509cacrl);
+ qemu_free(vs->x509cert);
+ qemu_free(vs->x509key);
+ vs->x509cacert = vs->x509cacrl = vs->x509cert = vs->x509key = NULL;
+ return -1;
+}
+#endif /* CONFIG_VNC_TLS */
+
+void vnc_display_close(DisplayState *ds)
+{
+ VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
+
+ if (vs->display) {
+ qemu_free(vs->display);
+ vs->display = NULL;
+ }
+ if (vs->lsock != -1) {
+ qemu_set_fd_handler2(vs->lsock, NULL, NULL, NULL, NULL);
+ close(vs->lsock);
+ vs->lsock = -1;
+ }
+ if (vs->csock != -1) {
+ qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
+ closesocket(vs->csock);
+ vs->csock = -1;
+ buffer_reset(&vs->input);
+ buffer_reset(&vs->output);
+ vs->need_update = 0;
+#ifdef CONFIG_VNC_TLS
+ if (vs->tls_session) {
+ gnutls_deinit(vs->tls_session);
+ vs->tls_session = NULL;
+ }
+ vs->wiremode = VNC_WIREMODE_CLEAR;
+#endif /* CONFIG_VNC_TLS */
+ }
+ vs->auth = VNC_AUTH_INVALID;
+#ifdef CONFIG_VNC_TLS
+ vs->subauth = VNC_AUTH_INVALID;
+ vs->x509verify = 0;
+#endif
+ audio_del(vs);
+}
+
+int vnc_display_password(DisplayState *ds, const char *password)
+{
+ VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
+
+ if (vs->password) {
+ qemu_free(vs->password);
+ vs->password = NULL;
+ }
+ if (password && password[0]) {
+ if (!(vs->password = qemu_strdup(password)))
+ return -1;
+ }
+
+ return 0;
+}
+
+int vnc_display_open(DisplayState *ds, const char *display)
+{
+ VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
+ const char *options;
+ int password = 0;
+ int reverse = 0;
+ int to_port = 0;
+#ifdef CONFIG_VNC_TLS
+ int tls = 0, x509 = 0;
+#endif
+
+ vnc_display_close(ds);
+ if (strcmp(display, "none") == 0)
+ return 0;
+
+ if (!(vs->display = strdup(display)))
+ return -1;
+
+ options = display;
+ while ((options = strchr(options, ','))) {
+ options++;
+ if (strncmp(options, "password", 8) == 0) {
+ password = 1; /* Require password auth */
+ } else if (strncmp(options, "reverse", 7) == 0) {
+ reverse = 1;
+ } else if (strncmp(options, "to=", 3) == 0) {
+ to_port = atoi(options+3) + 5900;
+#ifdef CONFIG_VNC_TLS
+ } else if (strncmp(options, "tls", 3) == 0) {
+ tls = 1; /* Require TLS */
+ } else if (strncmp(options, "x509", 4) == 0) {
+ char *start, *end;
+ x509 = 1; /* Require x509 certificates */
+ if (strncmp(options, "x509verify", 10) == 0)
+ vs->x509verify = 1; /* ...and verify client certs */
+
+ /* Now check for 'x509=/some/path' postfix
+ * and use that to setup x509 certificate/key paths */
+ start = strchr(options, '=');
+ end = strchr(options, ',');
+ if (start && (!end || (start < end))) {
+ int len = end ? end-(start+1) : strlen(start+1);
+ char *path = qemu_strndup(start + 1, len);
+
+ VNC_DEBUG("Trying certificate path '%s'\n", path);
+ if (vnc_set_x509_credential_dir(vs, path) < 0) {
+ fprintf(stderr, "Failed to find x509 certificates/keys in %s\n", path);
+ qemu_free(path);
+ qemu_free(vs->display);
+ vs->display = NULL;
+ return -1;
+ }
+ qemu_free(path);
+ } else {
+ fprintf(stderr, "No certificate path provided\n");
+ qemu_free(vs->display);
+ vs->display = NULL;
+ return -1;
+ }
+#endif
+ }
+ }
+
+ if (password) {
+#ifdef CONFIG_VNC_TLS
+ if (tls) {
+ vs->auth = VNC_AUTH_VENCRYPT;
+ if (x509) {
+ VNC_DEBUG("Initializing VNC server with x509 password auth\n");
+ vs->subauth = VNC_AUTH_VENCRYPT_X509VNC;
+ } else {
+ VNC_DEBUG("Initializing VNC server with TLS password auth\n");
+ vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC;
+ }
+ } else {
+#endif
+ VNC_DEBUG("Initializing VNC server with password auth\n");
+ vs->auth = VNC_AUTH_VNC;
+#ifdef CONFIG_VNC_TLS
+ vs->subauth = VNC_AUTH_INVALID;
+ }
+#endif
+ } else {
+#ifdef CONFIG_VNC_TLS
+ if (tls) {
+ vs->auth = VNC_AUTH_VENCRYPT;
+ if (x509) {
+ VNC_DEBUG("Initializing VNC server with x509 no auth\n");
+ vs->subauth = VNC_AUTH_VENCRYPT_X509NONE;
+ } else {
+ VNC_DEBUG("Initializing VNC server with TLS no auth\n");
+ vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE;
+ }
+ } else {
+#endif
+ VNC_DEBUG("Initializing VNC server with no auth\n");
+ vs->auth = VNC_AUTH_NONE;
+#ifdef CONFIG_VNC_TLS
+ vs->subauth = VNC_AUTH_INVALID;
+ }
+#endif
+ }
+
+ if (reverse) {
+ /* connect to viewer */
+ if (strncmp(display, "unix:", 5) == 0)
+ vs->lsock = unix_connect(display+5);
+ else
+ vs->lsock = inet_connect(display, SOCK_STREAM);
+ if (-1 == vs->lsock) {
+ free(vs->display);
+ vs->display = NULL;
+ return -1;
+ } else {
+ vs->csock = vs->lsock;
+ vs->lsock = -1;
+ vnc_connect(vs);
+ }
+ return 0;
+
+ } else {
+ /* listen for connects */
+ char *dpy;
+ dpy = qemu_malloc(256);
+ if (strncmp(display, "unix:", 5) == 0) {
+ strcpy(dpy, "unix:");
+ vs->lsock = unix_listen(display+5, dpy+5, 256-5);
+ } else {
+ vs->lsock = inet_listen(display, dpy, 256, SOCK_STREAM, 5900);
+ }
+ if (-1 == vs->lsock) {
+ free(dpy);
+ return -1;
+ } else {
+ free(vs->display);
+ vs->display = dpy;
+ }
+ }
+
+ return qemu_set_fd_handler2(vs->lsock, vnc_listen_poll, vnc_listen_read, NULL, vs);
+}