applypatch: Let Apply{BSDiff,Image}Patch accept std::function.
Test: mmma bootable/recovery system/update_engine
Test: recovery_component_test
Change-Id: I93c2caa87bf94a53509bb37f98f2c02bcadb6f5c
diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index 06b8e31..51bf393 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -27,6 +27,7 @@
#include <sys/types.h>
#include <unistd.h>
+#include <functional>
#include <memory>
#include <string>
#include <utility>
@@ -42,7 +43,7 @@
#include "print_sha1.h"
static int LoadPartitionContents(const std::string& filename, FileContents* file);
-static size_t FileSink(const unsigned char* data, size_t len, void* token);
+static size_t FileSink(const unsigned char* data, size_t len, int fd);
static int GenerateTarget(const FileContents& source_file, const std::unique_ptr<Value>& patch,
const std::string& target_filename,
const uint8_t target_sha1[SHA_DIGEST_LENGTH], const Value* bonus_data);
@@ -194,7 +195,7 @@
return -1;
}
- size_t bytes_written = FileSink(file->data.data(), file->data.size(), &fd);
+ size_t bytes_written = FileSink(file->data.data(), file->data.size(), fd);
if (bytes_written != file->data.size()) {
printf("short write of \"%s\" (%zd bytes of %zu): %s\n", filename, bytes_written,
file->data.size(), strerror(errno));
@@ -433,8 +434,7 @@
return 0;
}
-static size_t FileSink(const unsigned char* data, size_t len, void* token) {
- int fd = *static_cast<int*>(token);
+static size_t FileSink(const unsigned char* data, size_t len, int fd) {
size_t done = 0;
while (done < len) {
ssize_t wrote = TEMP_FAILURE_RETRY(ota_write(fd, data + done, len - done));
@@ -447,12 +447,6 @@
return done;
}
-size_t MemorySink(const unsigned char* data, size_t len, void* token) {
- std::string* s = static_cast<std::string*>(token);
- s->append(reinterpret_cast<const char*>(data), len);
- return len;
-}
-
// Return the amount of free space (in bytes) on the filesystem
// containing filename. filename must exist. Return -1 on error.
size_t FreeSpaceForFile(const char* filename) {
@@ -646,9 +640,11 @@
}
// We store the decoded output in memory.
- SinkFn sink = MemorySink;
std::string memory_sink_str; // Don't need to reserve space.
- void* token = &memory_sink_str;
+ SinkFn sink = [&memory_sink_str](const unsigned char* data, size_t len) {
+ memory_sink_str.append(reinterpret_cast<const char*>(data), len);
+ return len;
+ };
SHA_CTX ctx;
SHA1_Init(&ctx);
@@ -656,10 +652,10 @@
int result;
if (use_bsdiff) {
result = ApplyBSDiffPatch(source_file.data.data(), source_file.data.size(), patch.get(), 0,
- sink, token, &ctx);
+ sink, &ctx);
} else {
result = ApplyImagePatch(source_file.data.data(), source_file.data.size(), patch.get(), sink,
- token, &ctx, bonus_data);
+ &ctx, bonus_data);
}
if (result != 0) {
diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp
index 8ef7a06..f75a2c6 100644
--- a/applypatch/bspatch.cpp
+++ b/applypatch/bspatch.cpp
@@ -24,9 +24,9 @@
#include <sys/types.h>
#include <bspatch.h>
+#include <openssl/sha.h>
#include "applypatch/applypatch.h"
-#include "openssl/sha.h"
void ShowBSDiffLicense() {
puts("The bsdiff library used herein is:\n"
@@ -61,9 +61,9 @@
}
int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
- size_t patch_offset, SinkFn sink, void* token, SHA_CTX* ctx) {
- auto sha_sink = [&](const uint8_t* data, size_t len) {
- len = sink(data, len, token);
+ size_t patch_offset, SinkFn sink, SHA_CTX* ctx) {
+ auto sha_sink = [&sink, &ctx](const uint8_t* data, size_t len) {
+ len = sink(data, len);
if (ctx) SHA1_Update(ctx, data, len);
return len;
};
diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp
index 7a88ffb..7d8b736 100644
--- a/applypatch/imgpatch.cpp
+++ b/applypatch/imgpatch.cpp
@@ -44,10 +44,10 @@
}
int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const unsigned char* patch_data,
- size_t patch_size, SinkFn sink, void* token) {
+ size_t patch_size, SinkFn sink) {
Value patch(VAL_BLOB, std::string(reinterpret_cast<const char*>(patch_data), patch_size));
- return ApplyImagePatch(old_data, old_size, &patch, sink, token, nullptr, nullptr);
+ return ApplyImagePatch(old_data, old_size, &patch, sink, nullptr, nullptr);
}
/*
@@ -57,7 +57,7 @@
* Return 0 on success.
*/
int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const Value* patch, SinkFn sink,
- void* token, SHA_CTX* ctx, const Value* bonus_data) {
+ SHA_CTX* ctx, const Value* bonus_data) {
if (patch->data.size() < 12) {
printf("patch too short to contain header\n");
return -1;
@@ -100,7 +100,7 @@
printf("source data too short\n");
return -1;
}
- ApplyBSDiffPatch(old_data + src_start, src_len, patch, patch_offset, sink, token, ctx);
+ ApplyBSDiffPatch(old_data + src_start, src_len, patch, patch_offset, sink, ctx);
} else if (type == CHUNK_RAW) {
const char* raw_header = &patch->data[pos];
pos += 4;
@@ -116,8 +116,7 @@
return -1;
}
if (ctx) SHA1_Update(ctx, &patch->data[pos], data_len);
- if (sink(reinterpret_cast<const unsigned char*>(&patch->data[pos]), data_len, token) !=
- data_len) {
+ if (sink(reinterpret_cast<const unsigned char*>(&patch->data[pos]), data_len) != data_len) {
printf("failed to write chunk %d raw data\n", i);
return -1;
}
@@ -241,7 +240,7 @@
ret = deflate(&strm, Z_FINISH);
size_t have = temp_data.size() - strm.avail_out;
- if (sink(temp_data.data(), have, token) != have) {
+ if (sink(temp_data.data(), have) != have) {
printf("failed to write %zd compressed bytes to output\n", have);
return -1;
}
diff --git a/applypatch/include/applypatch/applypatch.h b/applypatch/include/applypatch/applypatch.h
index 52fb582..da55432 100644
--- a/applypatch/include/applypatch/applypatch.h
+++ b/applypatch/include/applypatch/applypatch.h
@@ -20,6 +20,7 @@
#include <stdint.h>
#include <sys/stat.h>
+#include <functional>
#include <memory>
#include <string>
#include <vector>
@@ -41,7 +42,7 @@
// and use it as the source instead.
#define CACHE_TEMP_SOURCE "/cache/saved.file"
-using SinkFn = size_t (*)(const unsigned char*, size_t, void*);
+using SinkFn = std::function<size_t(const unsigned char*, size_t)>;
// applypatch.cpp
int ShowLicenses();
@@ -67,13 +68,13 @@
// bspatch.cpp
void ShowBSDiffLicense();
int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
- size_t patch_offset, SinkFn sink, void* token, SHA_CTX* ctx);
+ size_t patch_offset, SinkFn sink, SHA_CTX* ctx);
int ApplyBSDiffPatchMem(const unsigned char* old_data, size_t old_size, const Value* patch,
size_t patch_offset, std::vector<unsigned char>* new_data);
// imgpatch.cpp
int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const Value* patch, SinkFn sink,
- void* token, SHA_CTX* ctx, const Value* bonus_data);
+ SHA_CTX* ctx, const Value* bonus_data);
// freecache.cpp
int MakeFreeSpaceOnCache(size_t bytes_needed);
diff --git a/applypatch/include/applypatch/imgpatch.h b/applypatch/include/applypatch/imgpatch.h
index 16e4c4f..07c6609 100644
--- a/applypatch/include/applypatch/imgpatch.h
+++ b/applypatch/include/applypatch/imgpatch.h
@@ -19,9 +19,11 @@
#include <sys/types.h>
-using SinkFn = size_t (*)(const unsigned char*, size_t, void*);
+#include <functional>
+
+using SinkFn = std::function<size_t(const unsigned char*, size_t)>;
int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const unsigned char* patch_data,
- size_t patch_size, SinkFn sink, void* token);
+ size_t patch_size, SinkFn sink);
#endif // _APPLYPATCH_IMGPATCH_H
diff --git a/tests/component/imgdiff_test.cpp b/tests/component/imgdiff_test.cpp
index 64e1f29..7d00a3d 100644
--- a/tests/component/imgdiff_test.cpp
+++ b/tests/component/imgdiff_test.cpp
@@ -14,6 +14,8 @@
* limitations under the License.
*/
+#include <stdio.h>
+
#include <string>
#include <vector>
@@ -27,12 +29,6 @@
using android::base::get_unaligned;
-static size_t MemorySink(const unsigned char* data, size_t len, void* token) {
- std::string* s = static_cast<std::string*>(token);
- s->append(reinterpret_cast<const char*>(data), len);
- return len;
-}
-
// Sanity check for the given imgdiff patch header.
static void verify_patch_header(const std::string& patch, size_t* num_normal, size_t* num_raw,
size_t* num_deflate) {
@@ -79,6 +75,18 @@
if (num_deflate != nullptr) *num_deflate = deflate;
}
+static void verify_patched_image(const std::string& src, const std::string& patch,
+ const std::string& tgt) {
+ std::string patched;
+ ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
+ reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
+ [&patched](const unsigned char* data, size_t len) {
+ patched.append(reinterpret_cast<const char*>(data), len);
+ return len;
+ }));
+ ASSERT_EQ(tgt, patched);
+}
+
TEST(ImgdiffTest, invalid_args) {
// Insufficient inputs.
ASSERT_EQ(2, imgdiff(1, (const char* []){ "imgdiff" }));
@@ -124,11 +132,7 @@
ASSERT_EQ(0U, num_deflate);
ASSERT_EQ(1U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, zip_mode_smoke_store) {
@@ -177,11 +181,7 @@
ASSERT_EQ(0U, num_deflate);
ASSERT_EQ(1U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, zip_mode_smoke_compressed) {
@@ -230,11 +230,7 @@
ASSERT_EQ(1U, num_deflate);
ASSERT_EQ(2U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, zip_mode_smoke_trailer_zeros) {
@@ -286,11 +282,7 @@
ASSERT_EQ(1U, num_deflate);
ASSERT_EQ(2U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, image_mode_simple) {
@@ -333,11 +325,7 @@
ASSERT_EQ(1U, num_deflate);
ASSERT_EQ(2U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, image_mode_different_num_chunks) {
@@ -413,11 +401,7 @@
ASSERT_EQ(1U, num_deflate);
ASSERT_EQ(2U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, image_mode_spurious_magic) {
@@ -454,11 +438,7 @@
ASSERT_EQ(0U, num_deflate);
ASSERT_EQ(1U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, image_mode_short_input1) {
@@ -494,11 +474,7 @@
ASSERT_EQ(0U, num_deflate);
ASSERT_EQ(1U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, image_mode_short_input2) {
@@ -534,11 +510,7 @@
ASSERT_EQ(0U, num_deflate);
ASSERT_EQ(1U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
TEST(ImgdiffTest, image_mode_single_entry_long) {
@@ -577,9 +549,5 @@
ASSERT_EQ(0U, num_deflate);
ASSERT_EQ(0U, num_raw);
- std::string patched;
- ASSERT_EQ(0, ApplyImagePatch(reinterpret_cast<const unsigned char*>(src.data()), src.size(),
- reinterpret_cast<const unsigned char*>(patch.data()), patch.size(),
- MemorySink, &patched));
- ASSERT_EQ(tgt, patched);
+ verify_patched_image(src, patch, tgt);
}
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index 5a27ff4..8c0f885 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -240,9 +240,7 @@
size_t p_remain;
};
-static size_t RangeSinkWrite(const uint8_t* data, size_t size, void* token) {
- RangeSinkState* rss = static_cast<RangeSinkState*>(token);
-
+static size_t RangeSinkWrite(const uint8_t* data, size_t size, RangeSinkState* rss) {
if (rss->p_remain == 0) {
LOG(ERROR) << "range sink write overrun";
return 0;
@@ -1258,92 +1256,95 @@
}
static int PerformCommandDiff(CommandParameters& params) {
+ // <offset> <length>
+ if (params.cpos + 1 >= params.tokens.size()) {
+ LOG(ERROR) << "missing patch offset or length for " << params.cmdname;
+ return -1;
+ }
- // <offset> <length>
- if (params.cpos + 1 >= params.tokens.size()) {
- LOG(ERROR) << "missing patch offset or length for " << params.cmdname;
- return -1;
- }
+ size_t offset;
+ if (!android::base::ParseUint(params.tokens[params.cpos++], &offset)) {
+ LOG(ERROR) << "invalid patch offset";
+ return -1;
+ }
- size_t offset;
- if (!android::base::ParseUint(params.tokens[params.cpos++], &offset)) {
- LOG(ERROR) << "invalid patch offset";
- return -1;
- }
+ size_t len;
+ if (!android::base::ParseUint(params.tokens[params.cpos++], &len)) {
+ LOG(ERROR) << "invalid patch len";
+ return -1;
+ }
- size_t len;
- if (!android::base::ParseUint(params.tokens[params.cpos++], &len)) {
- LOG(ERROR) << "invalid patch len";
- return -1;
- }
+ RangeSet tgt;
+ size_t blocks = 0;
+ bool overlap = false;
+ int status = LoadSrcTgtVersion3(params, tgt, &blocks, false, &overlap);
- RangeSet tgt;
- size_t blocks = 0;
- bool overlap = false;
- int status = LoadSrcTgtVersion3(params, tgt, &blocks, false, &overlap);
+ if (status == -1) {
+ LOG(ERROR) << "failed to read blocks for diff";
+ return -1;
+ }
- if (status == -1) {
- LOG(ERROR) << "failed to read blocks for diff";
- return -1;
- }
+ if (status == 0) {
+ params.foundwrites = true;
+ } else if (params.foundwrites) {
+ LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
+ }
+ if (params.canwrite) {
if (status == 0) {
- params.foundwrites = true;
- } else if (params.foundwrites) {
- LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
- }
+ LOG(INFO) << "patching " << blocks << " blocks to " << tgt.size;
+ Value patch_value(
+ VAL_BLOB, std::string(reinterpret_cast<const char*>(params.patch_start + offset), len));
+ RangeSinkState rss(tgt);
+ rss.fd = params.fd;
+ rss.p_block = 0;
+ rss.p_remain = (tgt.pos[1] - tgt.pos[0]) * BLOCKSIZE;
- if (params.canwrite) {
- if (status == 0) {
- LOG(INFO) << "patching " << blocks << " blocks to " << tgt.size;
- Value patch_value(VAL_BLOB,
- std::string(reinterpret_cast<const char*>(params.patch_start + offset), len));
- RangeSinkState rss(tgt);
- rss.fd = params.fd;
- rss.p_block = 0;
- rss.p_remain = (tgt.pos[1] - tgt.pos[0]) * BLOCKSIZE;
+ off64_t offset = static_cast<off64_t>(tgt.pos[0]) * BLOCKSIZE;
+ if (!discard_blocks(params.fd, offset, rss.p_remain)) {
+ return -1;
+ }
- off64_t offset = static_cast<off64_t>(tgt.pos[0]) * BLOCKSIZE;
- if (!discard_blocks(params.fd, offset, rss.p_remain)) {
- return -1;
- }
+ if (!check_lseek(params.fd, offset, SEEK_SET)) {
+ return -1;
+ }
- if (!check_lseek(params.fd, offset, SEEK_SET)) {
- return -1;
- }
-
- if (params.cmdname[0] == 'i') { // imgdiff
- if (ApplyImagePatch(params.buffer.data(), blocks * BLOCKSIZE, &patch_value,
- &RangeSinkWrite, &rss, nullptr, nullptr) != 0) {
- LOG(ERROR) << "Failed to apply image patch.";
- return -1;
- }
- } else {
- if (ApplyBSDiffPatch(params.buffer.data(), blocks * BLOCKSIZE, &patch_value,
- 0, &RangeSinkWrite, &rss, nullptr) != 0) {
- LOG(ERROR) << "Failed to apply bsdiff patch.";
- return -1;
- }
- }
-
- // We expect the output of the patcher to fill the tgt ranges exactly.
- if (rss.p_block != tgt.count || rss.p_remain != 0) {
- LOG(ERROR) << "range sink underrun?";
- }
- } else {
- LOG(INFO) << "skipping " << blocks << " blocks already patched to " << tgt.size
- << " [" << params.cmdline << "]";
+ if (params.cmdname[0] == 'i') { // imgdiff
+ if (ApplyImagePatch(
+ params.buffer.data(), blocks * BLOCKSIZE, &patch_value,
+ std::bind(&RangeSinkWrite, std::placeholders::_1, std::placeholders::_2, &rss),
+ nullptr, nullptr) != 0) {
+ LOG(ERROR) << "Failed to apply image patch.";
+ return -1;
}
+ } else {
+ if (ApplyBSDiffPatch(
+ params.buffer.data(), blocks * BLOCKSIZE, &patch_value, 0,
+ std::bind(&RangeSinkWrite, std::placeholders::_1, std::placeholders::_2, &rss),
+ nullptr) != 0) {
+ LOG(ERROR) << "Failed to apply bsdiff patch.";
+ return -1;
+ }
+ }
+
+ // We expect the output of the patcher to fill the tgt ranges exactly.
+ if (rss.p_block != tgt.count || rss.p_remain != 0) {
+ LOG(ERROR) << "range sink underrun?";
+ }
+ } else {
+ LOG(INFO) << "skipping " << blocks << " blocks already patched to " << tgt.size << " ["
+ << params.cmdline << "]";
}
+ }
- if (!params.freestash.empty()) {
- FreeStash(params.stashbase, params.freestash);
- params.freestash.clear();
- }
+ if (!params.freestash.empty()) {
+ FreeStash(params.stashbase, params.freestash);
+ params.freestash.clear();
+ }
- params.written += tgt.size;
+ params.written += tgt.size;
- return 0;
+ return 0;
}
static int PerformCommandErase(CommandParameters& params) {