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enforce maximum sample size in sample cache

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@787 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-04-23 20:59:09 +00:00
parent cdba0527a8
commit e1ac42dd10
4 changed files with 11 additions and 6 deletions
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3
src/polypcore/core-scache.c
View file

@ -133,6 +133,9 @@ int pa_scache_add_item(pa_core *c, const char *name, const pa_sample_spec *ss, c
pa_scache_entry *e; pa_scache_entry *e;
assert(c && name); assert(c && name);
if (chunk->length > PA_SCACHE_ENTRY_SIZE_MAX)
return -1;
if (!(e = scache_add_item(c, name))) if (!(e = scache_add_item(c, name)))
return -1; return -1;

2
src/polypcore/core-scache.h
View file

@ -26,6 +26,8 @@
#include <polypcore/memchunk.h> #include <polypcore/memchunk.h>
#include <polypcore/sink.h> #include <polypcore/sink.h>
#define PA_SCACHE_ENTRY_SIZE_MAX (1024*1024*2)
typedef struct pa_scache_entry { typedef struct pa_scache_entry {
pa_core *core; pa_core *core;
uint32_t index; uint32_t index;

5
src/polypcore/pstream.c
View file

@ -37,6 +37,7 @@
#include <polypcore/queue.h> #include <polypcore/queue.h>
#include <polypcore/xmalloc.h> #include <polypcore/xmalloc.h>
#include <polypcore/log.h> #include <polypcore/log.h>
#include <polypcore/core-scache.h>
#include "pstream.h" #include "pstream.h"
@ -52,7 +53,7 @@ enum {
typedef uint32_t pa_pstream_descriptor[PA_PSTREAM_DESCRIPTOR_MAX]; typedef uint32_t pa_pstream_descriptor[PA_PSTREAM_DESCRIPTOR_MAX];
#define PA_PSTREAM_DESCRIPTOR_SIZE (PA_PSTREAM_DESCRIPTOR_MAX*sizeof(uint32_t)) #define PA_PSTREAM_DESCRIPTOR_SIZE (PA_PSTREAM_DESCRIPTOR_MAX*sizeof(uint32_t))
#define FRAME_SIZE_MAX (1024*500) /* half a megabyte */ #define FRAME_SIZE_MAX PA_SCACHE_ENTRY_SIZE_MAX /* allow uploading a single sample in one frame at max */
struct item_info { struct item_info {
enum { PA_PSTREAM_ITEM_PACKET, PA_PSTREAM_ITEM_MEMBLOCK } type; enum { PA_PSTREAM_ITEM_PACKET, PA_PSTREAM_ITEM_MEMBLOCK } type;
@ -419,7 +420,7 @@ static int do_read(pa_pstream *p) {
/* Frame size too large */ /* Frame size too large */
if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) > FRAME_SIZE_MAX) { if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) > FRAME_SIZE_MAX) {
pa_log_warn(__FILE__": Frame size too large"); pa_log_warn(__FILE__": Frame size too large: %lu > %lu", (unsigned long) ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]), (unsigned long) FRAME_SIZE_MAX);
return -1; return -1;
} }

7
src/polypcore/sound-file.c
View file

@ -32,8 +32,7 @@
#include <polypcore/log.h> #include <polypcore/log.h>
#include "sound-file.h" #include "sound-file.h"
#include "core-scache.h"
#define MAX_FILE_SIZE (1024*1024)
int pa_sound_file_load(const char *fname, pa_sample_spec *ss, pa_channel_map *map, pa_memchunk *chunk, pa_memblock_stat *s) { int pa_sound_file_load(const char *fname, pa_sample_spec *ss, pa_channel_map *map, pa_memchunk *chunk, pa_memblock_stat *s) {
SNDFILE*sf = NULL; SNDFILE*sf = NULL;
@ -78,7 +77,7 @@ int pa_sound_file_load(const char *fname, pa_sample_spec *ss, pa_channel_map *ma
if (map) if (map)
pa_channel_map_init_auto(map, ss->channels); pa_channel_map_init_auto(map, ss->channels);
if ((l = pa_frame_size(ss)*sfinfo.frames) > MAX_FILE_SIZE) { if ((l = pa_frame_size(ss)*sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
pa_log(__FILE__": File too large"); pa_log(__FILE__": File too large");
goto finish; goto finish;
} }
@ -134,7 +133,7 @@ int pa_sound_file_too_big_to_cache(const char *fname) {
ss.rate = sfinfo.samplerate; ss.rate = sfinfo.samplerate;
ss.channels = sfinfo.channels; ss.channels = sfinfo.channels;
if ((pa_frame_size(&ss) * sfinfo.frames) > MAX_FILE_SIZE) { if ((pa_frame_size(&ss) * sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
pa_log(__FILE__": File too large %s", fname); pa_log(__FILE__": File too large %s", fname);
return 1; return 1;
} }