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-rw-r--r--updater/blockimg.cpp143
1 files changed, 3 insertions, 140 deletions
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index c2897a83e..03ce4136e 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -66,21 +66,6 @@ struct RangeSet {
size_t count; // Limit is INT_MAX.
size_t size;
std::vector<size_t> pos; // Actual limit is INT_MAX.
-
- // Get the block number for the ith(starting from 0) block in the range set.
- int get_block(size_t idx) const {
- if (idx >= size) {
- LOG(ERROR) << "index: " << idx << " is greater than range set size: " << size;
- return -1;
- }
- for (size_t i = 0; i < pos.size(); i += 2) {
- if (idx < pos[i + 1] - pos[i]) {
- return pos[i] + idx;
- }
- idx -= (pos[i + 1] - pos[i]);
- }
- return -1;
- }
};
static CauseCode failure_type = kNoCause;
@@ -456,117 +441,6 @@ static int LoadSrcTgtVersion1(CommandParameters& params, RangeSet& tgt, size_t&
return rc;
}
-// Print the hash in hex for corrupted source blocks (excluding the stashed blocks which is
-// handled separately).
-static void PrintHashForCorruptedSourceBlocks(const CommandParameters& params,
- const std::vector<uint8_t>& buffer) {
- LOG(INFO) << "unexpected contents of source blocks in cmd:\n" << params.cmdline;
- if (params.version < 3) {
- // TODO handle version 1,2
- LOG(WARNING) << "version number " << params.version << " is not supported to print hashes";
- return;
- }
-
- CHECK(params.tokens[0] == "move" || params.tokens[0] == "bsdiff" ||
- params.tokens[0] == "imgdiff");
-
- size_t pos = 0;
- // Command example:
- // move <onehash> <tgt_range> <src_blk_count> <src_range> [<loc_range> <stashed_blocks>]
- // bsdiff <offset> <len> <src_hash> <tgt_hash> <tgt_range> <src_blk_count> <src_range>
- // [<loc_range> <stashed_blocks>]
- if (params.tokens[0] == "move") {
- // src_range for move starts at the 4th position.
- if (params.tokens.size() < 5) {
- LOG(ERROR) << "failed to parse source range in cmd:\n" << params.cmdline;
- return;
- }
- pos = 4;
- } else {
- // src_range for diff starts at the 7th position.
- if (params.tokens.size() < 8) {
- LOG(ERROR) << "failed to parse source range in cmd:\n" << params.cmdline;
- return;
- }
- pos = 7;
- }
-
- // Source blocks in stash only, no work to do.
- if (params.tokens[pos] == "-") {
- return;
- }
-
- RangeSet src = parse_range(params.tokens[pos++]);
-
- RangeSet locs;
- // If there's no stashed blocks, content in the buffer is consecutive and has the same
- // order as the source blocks.
- if (pos == params.tokens.size()) {
- locs.count = 1;
- locs.size = src.size;
- locs.pos = { 0, src.size };
- } else {
- // Otherwise, the next token is the offset of the source blocks in the target range.
- // Example: for the tokens <4,63946,63947,63948,63979> <4,6,7,8,39> <stashed_blocks>;
- // We want to print SHA-1 for the data in buffer[6], buffer[8], buffer[9] ... buffer[38];
- // this corresponds to the 32 src blocks #63946, #63948, #63949 ... #63978.
- locs = parse_range(params.tokens[pos++]);
- CHECK_EQ(src.size, locs.size);
- CHECK_EQ(locs.pos.size() % 2, static_cast<size_t>(0));
- }
-
- LOG(INFO) << "printing hash in hex for " << src.size << " source blocks";
- for (size_t i = 0; i < src.size; i++) {
- int block_num = src.get_block(i);
- CHECK_NE(block_num, -1);
- int buffer_index = locs.get_block(i);
- CHECK_NE(buffer_index, -1);
- CHECK_LE((buffer_index + 1) * BLOCKSIZE, buffer.size());
-
- uint8_t digest[SHA_DIGEST_LENGTH];
- SHA1(buffer.data() + buffer_index * BLOCKSIZE, BLOCKSIZE, digest);
- std::string hexdigest = print_sha1(digest);
- LOG(INFO) << " block number: " << block_num << ", SHA-1: " << hexdigest;
- }
-}
-
-// If the calculated hash for the whole stash doesn't match the stash id, print the SHA-1
-// in hex for each block.
-static void PrintHashForCorruptedStashedBlocks(const std::string& id,
- const std::vector<uint8_t>& buffer,
- const RangeSet& src) {
- LOG(INFO) << "printing hash in hex for stash_id: " << id;
- CHECK_EQ(src.size * BLOCKSIZE, buffer.size());
-
- for (size_t i = 0; i < src.size; i++) {
- int block_num = src.get_block(i);
- CHECK_NE(block_num, -1);
-
- uint8_t digest[SHA_DIGEST_LENGTH];
- SHA1(buffer.data() + i * BLOCKSIZE, BLOCKSIZE, digest);
- std::string hexdigest = print_sha1(digest);
- LOG(INFO) << " block number: " << block_num << ", SHA-1: " << hexdigest;
- }
-}
-
-// If the stash file doesn't exist, read the source blocks this stash contains and print the
-// SHA-1 for these blocks.
-static void PrintHashForMissingStashedBlocks(const std::string& id, int fd) {
- if (stash_map.find(id) == stash_map.end()) {
- LOG(ERROR) << "No stash saved for id: " << id;
- return;
- }
-
- LOG(INFO) << "print hash in hex for source blocks in missing stash: " << id;
- const RangeSet& src = stash_map[id];
- std::vector<uint8_t> buffer(src.size * BLOCKSIZE);
- if (ReadBlocks(src, buffer, fd) == -1) {
- LOG(ERROR) << "failed to read source blocks for stash: " << id;
- return;
- }
- PrintHashForCorruptedStashedBlocks(id, buffer, src);
-}
-
static int VerifyBlocks(const std::string& expected, const std::vector<uint8_t>& buffer,
const size_t blocks, bool printerror) {
uint8_t digest[SHA_DIGEST_LENGTH];
@@ -699,7 +573,6 @@ static int LoadStash(CommandParameters& params, const std::string& base, const s
}
if (VerifyBlocks(id, buffer, src.size, true) != 0) {
LOG(ERROR) << "failed to verify loaded source blocks in stash map.";
- PrintHashForCorruptedStashedBlocks(id, buffer, src);
return -1;
}
return 0;
@@ -724,7 +597,6 @@ static int LoadStash(CommandParameters& params, const std::string& base, const s
if (res == -1) {
if (errno != ENOENT || printnoent) {
PLOG(ERROR) << "stat \"" << fn << "\" failed";
- PrintHashForMissingStashedBlocks(id, params.fd);
}
return -1;
}
@@ -752,13 +624,6 @@ static int LoadStash(CommandParameters& params, const std::string& base, const s
if (verify && VerifyBlocks(id, buffer, *blocks, true) != 0) {
LOG(ERROR) << "unexpected contents in " << fn;
- if (stash_map.find(id) == stash_map.end()) {
- LOG(ERROR) << "failed to find source blocks number for stash " << id
- << " when executing command: " << params.cmdname;
- } else {
- const RangeSet& src = stash_map[id];
- PrintHashForCorruptedStashedBlocks(id, buffer, src);
- }
DeleteFile(fn, nullptr);
return -1;
}
@@ -930,7 +795,6 @@ static int SaveStash(CommandParameters& params, const std::string& base,
return -1;
}
blocks = src.size;
- stash_map[id] = src;
if (usehash && VerifyBlocks(id, buffer, blocks, true) != 0) {
// Source blocks have unexpected contents. If we actually need this
@@ -941,8 +805,9 @@ static int SaveStash(CommandParameters& params, const std::string& base,
return 0;
}
- // In verify mode, we don't need to stash any blocks.
+ // In verify mode, save source range_set instead of stashing blocks.
if (!params.canwrite && usehash) {
+ stash_map[id] = src;
return 0;
}
@@ -1161,8 +1026,6 @@ static int LoadSrcTgtVersion3(CommandParameters& params, RangeSet& tgt, size_t&
// Valid source data not available, update cannot be resumed
LOG(ERROR) << "partition has unexpected contents";
- PrintHashForCorruptedSourceBlocks(params, params.buffer);
-
params.isunresumable = true;
return -1;
@@ -1231,7 +1094,7 @@ static int PerformCommandFree(CommandParameters& params) {
const std::string& id = params.tokens[params.cpos++];
- if (stash_map.find(id) != stash_map.end()) {
+ if (!params.canwrite && stash_map.find(id) != stash_map.end()) {
stash_map.erase(id);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 21:08:29 +0100