From 4154d7028943ca4bf0f1ff2e0480d688fc081fcc Mon Sep 17 00:00:00 2001 From: Alexander Larsson Date: Tue, 25 May 2010 16:01:18 +0200 Subject: Client: Use the autogenerated demarshallers When a message has been read from the network we now pass it into the generated demarshaller for the channel. The demarshaller converts the network data to in-memory structures that is passed on to the spice internals. Additionally it also: * Converts endianness * Validates sizes of message and any pointers in it * Localizes offsets (converts them to pointers) * Checks for zero offsets in messages where they are not supported Some of this was previously done using custom code in the client, this is now removed. --- common/canvas_base.c | 54 ---------------------------------------------------- common/canvas_base.h | 1 - common/gdi_canvas.c | 17 ----------------- common/gl_canvas.c | 15 --------------- common/sw_canvas.c | 10 ---------- 5 files changed, 97 deletions(-) (limited to 'common') diff --git a/common/canvas_base.c b/common/canvas_base.c index aac472c8..26bc52c6 100644 --- a/common/canvas_base.c +++ b/common/canvas_base.c @@ -43,16 +43,6 @@ } #endif -#ifdef SW_CANVAS_ACCESS_TEST -#define access_test(cancas, ptr, size) \ - if ((unsigned long)(ptr) < (cancas)->base || \ - (unsigned long)(ptr) + (size) > (cancas)->max) { \ - CANVAS_ERROR("access violation 0x%lx %lu", (unsigned long)ptr, (unsigned long)(size)); \ - } -#else -#define access_test(cancas, base, size) -#endif - #ifndef ASSERT #define ASSERT(x) if (!(x)) { \ printf("%s: ASSERT %s failed\n", __FUNCTION__, #x); \ @@ -175,10 +165,6 @@ typedef struct CanvasBase { uint32_t color_shift; uint32_t color_mask; QuicData quic_data; -#ifdef SW_CANVAS_ACCESS_TEST - unsigned long base; - unsigned long max; -#endif uint32_t format; int width; @@ -630,7 +616,6 @@ static pixman_image_t *canvas_bitmap_to_surface(CanvasBase *canvas, SpiceBitmap* src = (uint8_t *)SPICE_GET_ADDRESS(bitmap->data); src_stride = bitmap->stride; - access_test(canvas, src, bitmap->y * src_stride); if (want_original) { format = spice_bitmap_format_to_pixman(bitmap->format, canvas->format); @@ -672,8 +657,6 @@ static inline SpicePalette *canvas_get_palette(CanvasBase *canvas, SPICE_ADDRESS palette = canvas->palette_cache->ops->get(canvas->palette_cache, base_palette); } else if (flags & SPICE_BITMAP_FLAGS_PAL_CACHE_ME) { palette = (SpicePalette *)SPICE_GET_ADDRESS(base_palette); - access_test(canvas, palette, sizeof(SpicePalette)); - access_test(canvas, palette, sizeof(SpicePalette) + palette->num_ents * sizeof(uint32_t)); canvas->palette_cache->ops->put(canvas->palette_cache, palette); } else { palette = (SpicePalette *)SPICE_GET_ADDRESS(base_palette); @@ -990,11 +973,9 @@ static void dump_surface(pixman_image_t *surface, int cache) static SpiceCanvas *canvas_get_surface_internal(CanvasBase *canvas, SPICE_ADDRESS addr) { SpiceImageDescriptor *descriptor = (SpiceImageDescriptor *)SPICE_GET_ADDRESS(addr); - access_test(canvas, descriptor, sizeof(SpiceImageDescriptor)); if (descriptor->type == SPICE_IMAGE_TYPE_SURFACE) { SpiceSurfaceImage *surface = (SpiceSurfaceImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceSurfaceImage)); return canvas->surfaces->ops->get(canvas->surfaces, surface->surface.surface_id); } return NULL; @@ -1005,11 +986,9 @@ static SpiceCanvas *canvas_get_surface_mask_internal(CanvasBase *canvas, SPICE_A SpiceImageDescriptor *descriptor; descriptor = (SpiceImageDescriptor *)SPICE_GET_ADDRESS(addr); - access_test(canvas, descriptor, sizeof(SpiceImageDescriptor)); if (descriptor->type == SPICE_IMAGE_TYPE_SURFACE) { SpiceSurfaceImage *surface = (SpiceSurfaceImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceSurfaceImage)); return canvas->surfaces->ops->get(canvas->surfaces, surface->surface.surface_id); } return NULL; @@ -1034,7 +1013,6 @@ static pixman_image_t *canvas_get_image_internal(CanvasBase *canvas, SPICE_ADDRE pixman_image_t *surface, *converted; pixman_format_code_t wanted_format, surface_format; int saved_want_original; - access_test(canvas, descriptor, sizeof(SpiceImageDescriptor)); #ifdef DEBUG_LZ LOG_DEBUG("canvas_get_image image type: " << (int)descriptor->type); #endif @@ -1063,19 +1041,16 @@ static pixman_image_t *canvas_get_image_internal(CanvasBase *canvas, SPICE_ADDRE switch (descriptor->type) { case SPICE_IMAGE_TYPE_QUIC: { SpiceQUICImage *image = (SpiceQUICImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceQUICImage)); surface = canvas_get_quic(canvas, image, 0, want_original); break; } #ifdef SW_CANVAS_NO_CHUNKS case SPICE_IMAGE_TYPE_LZ_PLT: { - access_test(canvas, descriptor, sizeof(SpiceLZPLTImage)); LZImage *image = (LZImage *)descriptor; surface = canvas_get_lz(canvas, image, 0, want_original); break; } case SPICE_IMAGE_TYPE_LZ_RGB: { - access_test(canvas, descriptor, sizeof(SpiceLZRGBImage)); LZImage *image = (LZImage *)descriptor; surface = canvas_get_lz(canvas, image, 0, want_original); break; @@ -1083,13 +1058,11 @@ static pixman_image_t *canvas_get_image_internal(CanvasBase *canvas, SPICE_ADDRE #endif case SPICE_IMAGE_TYPE_JPEG: { SpiceJPEGImage *image = (SpiceJPEGImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceJPEGImage)); surface = canvas_get_jpeg(canvas, image, 0); break; } #if defined(SW_CANVAS_CACHE) case SPICE_IMAGE_TYPE_GLZ_RGB: { - access_test(canvas, descriptor, sizeof(SpiceLZRGBImage)); LZImage *image = (LZImage *)descriptor; surface = canvas_get_glz(canvas, image, want_original); break; @@ -1106,7 +1079,6 @@ static pixman_image_t *canvas_get_image_internal(CanvasBase *canvas, SPICE_ADDRE #endif case SPICE_IMAGE_TYPE_BITMAP: { SpiceBitmapImage *bitmap = (SpiceBitmapImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceBitmapImage)); surface = canvas_get_bits(canvas, &bitmap->bitmap, want_original); break; } @@ -1213,8 +1185,6 @@ static pixman_image_t *canvas_get_image_internal(CanvasBase *canvas, SPICE_ADDRE SpiceImageDescriptor *descriptor = (SpiceImageDescriptor *)SPICE_GET_ADDRESS(addr); pixman_format_code_t format; - access_test(canvas, descriptor, sizeof(SpiceImageDescriptor)); - /* When touching, never load image. */ if (!real_get) { return NULL; @@ -1223,12 +1193,10 @@ static pixman_image_t *canvas_get_image_internal(CanvasBase *canvas, SPICE_ADDRE switch (descriptor->type) { case SPICE_IMAGE_TYPE_QUIC: { SpiceQUICImage *image = (SpiceQUICImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceQUICImage)); return canvas_get_quic(canvas, image, 0); } case SPICE_IMAGE_TYPE_BITMAP: { SpiceBitmapImage *bitmap = (SpiceBitmapImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceBitmapImage)); return canvas_get_bits(canvas, &bitmap->bitmap, want_original, &format); } default: @@ -1323,7 +1291,6 @@ static pixman_image_t *canvas_get_bitmap_mask(CanvasBase *canvas, SpiceBitmap* b src_line = (uint8_t *)SPICE_GET_ADDRESS(bitmap->data); src_stride = bitmap->stride; end_line = src_line + (bitmap->y * src_stride); - access_test(canvas, src_line, end_line - src_line); line_size = SPICE_ALIGN(bitmap->x, 8) >> 3; dest_stride = pixman_image_get_stride(surface); @@ -1455,7 +1422,6 @@ static pixman_image_t *canvas_get_mask(CanvasBase *canvas, SpiceQMask *mask, int } descriptor = (SpiceImageDescriptor *)SPICE_GET_ADDRESS(mask->bitmap); - access_test(canvas, descriptor, sizeof(SpiceImageDescriptor)); need_invers = mask->flags & SPICE_MASK_FLAGS_INVERS; #ifdef SW_CANVAS_CACHE @@ -1467,7 +1433,6 @@ static pixman_image_t *canvas_get_mask(CanvasBase *canvas, SpiceQMask *mask, int switch (descriptor->type) { case SPICE_IMAGE_TYPE_BITMAP: { SpiceBitmapImage *bitmap = (SpiceBitmapImage *)descriptor; - access_test(canvas, descriptor, sizeof(SpiceBitmapImage)); is_invers = need_invers && !cache_me; surface = canvas_get_bitmap_mask(canvas, &bitmap->bitmap, is_invers); break; @@ -1668,18 +1633,14 @@ static pixman_image_t *canvas_get_str_mask(CanvasBase *canvas, SpiceString *str, ASSERT(str->length > 0); - access_test(canvas, glyph, sizeof(SpiceRasterGlyph)); next_glyph = canvas_next_raster_glyph(glyph, bpp); - access_test(canvas, glyph, (uint8_t*)next_glyph - (uint8_t*)glyph); canvas_raster_glyph_box(glyph, &bounds); for (i = 1; i < str->length; i++) { SpiceRect glyph_box; glyph = next_glyph; - access_test(canvas, glyph, sizeof(SpiceRasterGlyph)); next_glyph = canvas_next_raster_glyph(glyph, bpp); - access_test(canvas, glyph, (uint8_t*)next_glyph - (uint8_t*)glyph); canvas_raster_glyph_box(glyph, &glyph_box); rect_union(&bounds, &glyph_box); } @@ -1860,14 +1821,6 @@ static int quic_usr_more_lines(QuicUsrContext *usr, uint8_t **lines) return 0; } -#ifdef SW_CANVAS_ACCESS_TEST -static void __canvas_set_access_params(CanvasBase *canvas, unsigned long base, unsigned long max) -{ - canvas->base = base; - canvas->max = max; -} -#endif - static void canvas_base_destroy(CanvasBase *canvas) { quic_destroy(canvas->quic_data.quic); @@ -1920,10 +1873,8 @@ static void canvas_clip_pixman(CanvasBase *canvas, break; case SPICE_CLIP_TYPE_RECTS: { uint32_t *n = (uint32_t *)SPICE_GET_ADDRESS(clip->data); - access_test(canvas, n, sizeof(uint32_t)); SpiceRect *now = (SpiceRect *)(n + 1); - access_test(canvas, now, (unsigned long)(now + *n) - (unsigned long)now); pixman_region32_t clip; @@ -3073,7 +3024,6 @@ static void canvas_draw_stroke(SpiceCanvas *spice_canvas, SpiceRect *bbox, gc.base.lineStyle = LineOnOffDash; gc.base.dash = (unsigned char *)spice_malloc(nseg); gc.base.numInDashList = nseg; - access_test(canvas, style, nseg * sizeof(*style)); if (stroke->attr.flags & SPICE_LINE_FLAGS_START_WITH_GAP) { gc.base.dash[stroke->attr.style_nseg - 1] = fix_to_int(style[0]); @@ -3118,19 +3068,15 @@ static void canvas_draw_stroke(SpiceCanvas *spice_canvas, SpiceRect *bbox, } data_size = (uint32_t*)SPICE_GET_ADDRESS(stroke->path); - access_test(canvas, data_size, sizeof(uint32_t)); more = *data_size; seg = (SpicePathSeg*)(data_size + 1); stroke_lines_init(&lines); do { - access_test(canvas, seg, sizeof(SpicePathSeg)); - uint32_t flags = seg->flags; SpicePointFix* point = (SpicePointFix*)seg->data; SpicePointFix* end_point = point + seg->count; - access_test(canvas, point, (unsigned long)end_point - (unsigned long)point); ASSERT(point < end_point); more -= ((unsigned long)end_point - (unsigned long)seg); seg = (SpicePathSeg*)end_point; diff --git a/common/canvas_base.h b/common/canvas_base.h index 1bbe4653..b54fce57 100644 --- a/common/canvas_base.h +++ b/common/canvas_base.h @@ -142,7 +142,6 @@ typedef struct { void (*read_bits)(SpiceCanvas *canvas, uint8_t *dest, int dest_stride, const SpiceRect *area); void (*group_start)(SpiceCanvas *canvas, QRegion *region); void (*group_end)(SpiceCanvas *canvas); - void (*set_access_params)(SpiceCanvas *canvas, unsigned long base, unsigned long max); void (*destroy)(SpiceCanvas *canvas); /* Implementation vfuncs */ diff --git a/common/gdi_canvas.c b/common/gdi_canvas.c index 20113fe1..fea23906 100644 --- a/common/gdi_canvas.c +++ b/common/gdi_canvas.c @@ -311,18 +311,14 @@ uint32_t raster_ops[] = { static void set_path(GdiCanvas *canvas, void *addr) { uint32_t* data_size = (uint32_t*)addr; - access_test(&canvas->base, data_size, sizeof(uint32_t)); uint32_t more = *data_size; SpicePathSeg* seg = (SpicePathSeg*)(data_size + 1); do { - access_test(&canvas->base, seg, sizeof(SpicePathSeg)); - uint32_t flags = seg->flags; SpicePointFix* point = (SpicePointFix*)seg->data; SpicePointFix* end_point = point + seg->count; - access_test(&canvas->base, point, (unsigned long)end_point - (unsigned long)point); ASSERT(point < end_point); more -= ((unsigned long)end_point - (unsigned long)seg); seg = (SpicePathSeg*)end_point; @@ -399,11 +395,9 @@ static void set_clip(GdiCanvas *canvas, SpiceClip *clip) break; case SPICE_CLIP_TYPE_RECTS: { uint32_t *n = (uint32_t *)SPICE_GET_ADDRESS(clip->data); - access_test(&canvas->base, n, sizeof(uint32_t)); SpiceRect *now = (SpiceRect *)(n + 1); SpiceRect *end = now + *n; - access_test(&canvas->base, now, (unsigned long)end - (unsigned long)now); if (now < end) { HRGN main_hrgn; @@ -1643,8 +1637,6 @@ static uint32_t *gdi_get_userstyle(GdiCanvas *canvas, uint8_t nseg, SPICE_ADDRES uint32_t *local_style; int i; - access_test(&canvas->base, style, nseg * sizeof(*style)); - if (nseg == 0) { CANVAS_ERROR("bad nseg"); } @@ -1835,14 +1827,6 @@ static void gdi_canvas_clear(SpiceCanvas *spice_canvas) { } -static void gdi_canvas_set_access_params(SpiceCanvas *spice_canvas, unsigned long base, unsigned long max) -{ -#ifdef SW_CANVAS_ACCESS_TEST - GdiCanvas *canvas = (GdiCanvas *)spice_canvas; - __canvas_set_access_params(&canvas->base, base, max); -#endif -} - static void gdi_canvas_destroy(SpiceCanvas *spice_canvas) { GdiCanvas *canvas = (GdiCanvas *)spice_canvas; @@ -1915,7 +1899,6 @@ void gdi_canvas_init() //unsafe global function gdi_canvas_ops.draw_alpha_blend = gdi_canvas_draw_alpha_blend; gdi_canvas_ops.put_image = gdi_canvas_put_image; gdi_canvas_ops.clear = gdi_canvas_clear; - gdi_canvas_ops.set_access_params = gdi_canvas_set_access_params; gdi_canvas_ops.destroy = gdi_canvas_destroy; rop3_init(); diff --git a/common/gl_canvas.c b/common/gl_canvas.c index 00caf89e..444fa4bb 100644 --- a/common/gl_canvas.c +++ b/common/gl_canvas.c @@ -115,18 +115,14 @@ static GLCPath get_path(GLCanvas *canvas, void *addr) { GLCPath path = glc_path_create(canvas->glc); uint32_t* data_size = (uint32_t*)addr; - access_test(&canvas->base, data_size, sizeof(uint32_t)); uint32_t more = *data_size; SpicePathSeg* seg = (SpicePathSeg*)(data_size + 1); do { - access_test(&canvas->base, seg, sizeof(SpicePathSeg)); - uint32_t flags = seg->flags; SpicePointFix* point = (SpicePointFix*)seg->data; SpicePointFix* end_point = point + seg->count; - access_test(&canvas->base, point, (unsigned long)end_point - (unsigned long)point); ASSERT(point < end_point); more -= ((unsigned long)end_point - (unsigned long)seg); seg = (SpicePathSeg*)end_point; @@ -183,10 +179,8 @@ static void set_clip(GLCanvas *canvas, SpiceRect *bbox, SpiceClip *clip) break; case SPICE_CLIP_TYPE_RECTS: { uint32_t *n = (uint32_t *)SPICE_GET_ADDRESS(clip->data); - access_test(&canvas->base, n, sizeof(uint32_t)); SpiceRect *now = (SpiceRect *)(n + 1); SpiceRect *end = now + *n; - access_test(&canvas->base, now, (unsigned long)end - (unsigned long)now); if (*n == 0) { rect.x = rect.y = 0; @@ -810,14 +804,6 @@ static void gl_canvas_group_end(SpiceCanvas *spice_canvas) glc_clear_mask(canvas->glc, GLC_MASK_B); } -static void gl_canvas_set_access_params(SpiceCanvas *spice_canvas, unsigned long base, unsigned long max) -{ -#ifdef SW_CANVAS_ACCESS_TEST - GLCanvas *canvas = (GLCanvas *)spice_canvas; - __canvas_set_access_params(&canvas->base, base, max); -#endif -} - static int need_init = 1; static SpiceCanvasOps gl_canvas_ops; @@ -926,7 +912,6 @@ void gl_canvas_init() //unsafe global function gl_canvas_ops.read_bits = gl_canvas_read_bits; gl_canvas_ops.group_start = gl_canvas_group_start; gl_canvas_ops.group_end = gl_canvas_group_end; - gl_canvas_ops.set_access_params = gl_canvas_set_access_params; gl_canvas_ops.destroy = gl_canvas_destroy; rop3_init(); diff --git a/common/sw_canvas.c b/common/sw_canvas.c index 8280362c..c1a7392a 100644 --- a/common/sw_canvas.c +++ b/common/sw_canvas.c @@ -1144,15 +1144,6 @@ static void canvas_clear(SpiceCanvas *spice_canvas) 0); } -static void canvas_set_access_params(SpiceCanvas *spice_canvas, - unsigned long base, unsigned long max) -{ -#ifdef SW_CANVAS_ACCESS_TEST - SwCanvas *canvas = (SwCanvas *)spice_canvas; - __canvas_set_access_params(&canvas->base, base, max); -#endif -} - static void canvas_destroy(SpiceCanvas *spice_canvas) { SwCanvas *canvas = (SwCanvas *)spice_canvas; @@ -1306,7 +1297,6 @@ void sw_canvas_init() //unsafe global function sw_canvas_ops.put_image = canvas_put_image; sw_canvas_ops.clear = canvas_clear; sw_canvas_ops.read_bits = canvas_read_bits; - sw_canvas_ops.set_access_params = canvas_set_access_params; sw_canvas_ops.destroy = canvas_destroy; sw_canvas_ops.fill_solid_spans = fill_solid_spans; -- cgit v1.2.3