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-rw-r--r--updater/blockimg.cpp295
1 files changed, 252 insertions, 43 deletions
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index a0b9ad233..e93196b27 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -34,11 +34,13 @@
#include <fec/io.h>
#include <functional>
+#include <limits>
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>
+#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <android-base/strings.h>
@@ -50,11 +52,12 @@
#include <ziparchive/zip_archive.h>
#include "edify/expr.h"
-#include "error_code.h"
-#include "ota_io.h"
-#include "print_sha1.h"
+#include "otafault/ota_io.h"
+#include "otautil/cache_location.h"
+#include "otautil/error_code.h"
+#include "otautil/print_sha1.h"
+#include "otautil/rangeset.h"
#include "updater/install.h"
-#include "updater/rangeset.h"
#include "updater/updater.h"
// Set this to 0 to interpret 'erase' transfers to mean do a
@@ -63,7 +66,6 @@
#define DEBUG_ERASE 0
static constexpr size_t BLOCKSIZE = 4096;
-static constexpr const char* STASH_DIRECTORY_BASE = "/cache/recovery";
static constexpr mode_t STASH_DIRECTORY_MODE = 0700;
static constexpr mode_t STASH_FILE_MODE = 0600;
@@ -71,6 +73,93 @@ static CauseCode failure_type = kNoCause;
static bool is_retry = false;
static std::unordered_map<std::string, RangeSet> stash_map;
+static void DeleteLastCommandFile() {
+ std::string last_command_file = CacheLocation::location().last_command_file();
+ if (unlink(last_command_file.c_str()) == -1 && errno != ENOENT) {
+ PLOG(ERROR) << "Failed to unlink: " << last_command_file;
+ }
+}
+
+// Parse the last command index of the last update and save the result to |last_command_index|.
+// Return true if we successfully read the index.
+static bool ParseLastCommandFile(int* last_command_index) {
+ std::string last_command_file = CacheLocation::location().last_command_file();
+ android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(last_command_file.c_str(), O_RDONLY)));
+ if (fd == -1) {
+ if (errno != ENOENT) {
+ PLOG(ERROR) << "Failed to open " << last_command_file;
+ return false;
+ }
+
+ LOG(INFO) << last_command_file << " doesn't exist.";
+ return false;
+ }
+
+ // Now that the last_command file exists, parse the last command index of previous update.
+ std::string content;
+ if (!android::base::ReadFdToString(fd.get(), &content)) {
+ LOG(ERROR) << "Failed to read: " << last_command_file;
+ return false;
+ }
+
+ std::vector<std::string> lines = android::base::Split(android::base::Trim(content), "\n");
+ if (lines.size() != 2) {
+ LOG(ERROR) << "Unexpected line counts in last command file: " << content;
+ return false;
+ }
+
+ if (!android::base::ParseInt(lines[0], last_command_index)) {
+ LOG(ERROR) << "Failed to parse integer in: " << lines[0];
+ return false;
+ }
+
+ return true;
+}
+
+// Update the last command index in the last_command_file if the current command writes to the
+// stash either explicitly or implicitly.
+static bool UpdateLastCommandIndex(int command_index, const std::string& command_string) {
+ std::string last_command_file = CacheLocation::location().last_command_file();
+ std::string last_command_tmp = last_command_file + ".tmp";
+ std::string content = std::to_string(command_index) + "\n" + command_string;
+ android::base::unique_fd wfd(
+ TEMP_FAILURE_RETRY(open(last_command_tmp.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0660)));
+ if (wfd == -1 || !android::base::WriteStringToFd(content, wfd)) {
+ PLOG(ERROR) << "Failed to update last command";
+ return false;
+ }
+
+ if (fsync(wfd) == -1) {
+ PLOG(ERROR) << "Failed to fsync " << last_command_tmp;
+ return false;
+ }
+
+ if (chown(last_command_tmp.c_str(), AID_SYSTEM, AID_SYSTEM) == -1) {
+ PLOG(ERROR) << "Failed to change owner for " << last_command_tmp;
+ return false;
+ }
+
+ if (rename(last_command_tmp.c_str(), last_command_file.c_str()) == -1) {
+ PLOG(ERROR) << "Failed to rename" << last_command_tmp;
+ return false;
+ }
+
+ std::string last_command_dir = android::base::Dirname(last_command_file);
+ android::base::unique_fd dfd(
+ TEMP_FAILURE_RETRY(ota_open(last_command_dir.c_str(), O_RDONLY | O_DIRECTORY)));
+ if (dfd == -1) {
+ PLOG(ERROR) << "Failed to open " << last_command_dir;
+ return false;
+ }
+
+ if (fsync(dfd) == -1) {
+ PLOG(ERROR) << "Failed to fsync " << last_command_dir;
+ return false;
+ }
+
+ return true;
+}
+
static int read_all(int fd, uint8_t* data, size_t size) {
size_t so_far = 0;
while (so_far < size) {
@@ -281,6 +370,11 @@ static bool receive_new_data(const uint8_t* data, size_t size, void* cookie) {
// Wait for nti->writer to be non-null, indicating some of this data is wanted.
pthread_mutex_lock(&nti->mu);
while (nti->writer == nullptr) {
+ // End the new data receiver if we encounter an error when performing block image update.
+ if (!nti->receiver_available) {
+ pthread_mutex_unlock(&nti->mu);
+ return false;
+ }
pthread_cond_wait(&nti->cv, &nti->mu);
}
pthread_mutex_unlock(&nti->mu);
@@ -316,6 +410,11 @@ static bool receive_brotli_new_data(const uint8_t* data, size_t size, void* cook
// Wait for nti->writer to be non-null, indicating some of this data is wanted.
pthread_mutex_lock(&nti->mu);
while (nti->writer == nullptr) {
+ // End the receiver if we encounter an error when performing block image update.
+ if (!nti->receiver_available) {
+ pthread_mutex_unlock(&nti->mu);
+ return false;
+ }
pthread_cond_wait(&nti->cv, &nti->mu);
}
pthread_mutex_unlock(&nti->mu);
@@ -429,6 +528,7 @@ static int WriteBlocks(const RangeSet& tgt, const std::vector<uint8_t>& buffer,
struct CommandParameters {
std::vector<std::string> tokens;
size_t cpos;
+ int cmdindex;
const char* cmdname;
const char* cmdline;
std::string freestash;
@@ -445,6 +545,7 @@ struct CommandParameters {
pthread_t thread;
std::vector<uint8_t> buffer;
uint8_t* patch_start;
+ bool target_verified; // The target blocks have expected contents already.
};
// Print the hash in hex for corrupted source blocks (excluding the stashed blocks which is
@@ -482,6 +583,10 @@ static void PrintHashForCorruptedSourceBlocks(const CommandParameters& params,
}
RangeSet src = RangeSet::Parse(params.tokens[pos++]);
+ if (!src) {
+ LOG(ERROR) << "Failed to parse range in " << params.cmdline;
+ return;
+ }
RangeSet locs;
// If there's no stashed blocks, content in the buffer is consecutive and has the same
@@ -572,7 +677,7 @@ static std::string GetStashFileName(const std::string& base, const std::string&
return "";
}
- std::string fn(STASH_DIRECTORY_BASE);
+ std::string fn(CacheLocation::location().stash_directory_base());
fn += "/" + base + "/" + id + postfix;
return fn;
@@ -803,7 +908,7 @@ static int CreateStash(State* state, size_t maxblocks, const std::string& blockd
size_t max_stash_size = maxblocks * BLOCKSIZE;
if (res == -1 && errno != ENOENT) {
- ErrorAbort(state, kStashCreationFailure, "stat \"%s\" failed: %s\n", dirname.c_str(),
+ ErrorAbort(state, kStashCreationFailure, "stat \"%s\" failed: %s", dirname.c_str(),
strerror(errno));
return -1;
} else if (res != 0) {
@@ -811,19 +916,19 @@ static int CreateStash(State* state, size_t maxblocks, const std::string& blockd
res = mkdir(dirname.c_str(), STASH_DIRECTORY_MODE);
if (res != 0) {
- ErrorAbort(state, kStashCreationFailure, "mkdir \"%s\" failed: %s\n", dirname.c_str(),
+ ErrorAbort(state, kStashCreationFailure, "mkdir \"%s\" failed: %s", dirname.c_str(),
strerror(errno));
return -1;
}
if (chown(dirname.c_str(), AID_SYSTEM, AID_SYSTEM) != 0) { // system user
- ErrorAbort(state, kStashCreationFailure, "chown \"%s\" failed: %s\n", dirname.c_str(),
+ ErrorAbort(state, kStashCreationFailure, "chown \"%s\" failed: %s", dirname.c_str(),
strerror(errno));
return -1;
}
if (CacheSizeCheck(max_stash_size) != 0) {
- ErrorAbort(state, kStashCreationFailure, "not enough space for stash (%zu needed)\n",
+ ErrorAbort(state, kStashCreationFailure, "not enough space for stash (%zu needed)",
max_stash_size);
return -1;
}
@@ -855,7 +960,7 @@ static int CreateStash(State* state, size_t maxblocks, const std::string& blockd
if (max_stash_size > existing) {
size_t needed = max_stash_size - existing;
if (CacheSizeCheck(needed) != 0) {
- ErrorAbort(state, kStashCreationFailure, "not enough space for stash (%zu more needed)\n",
+ ErrorAbort(state, kStashCreationFailure, "not enough space for stash (%zu more needed)",
needed);
return -1;
}
@@ -926,6 +1031,7 @@ static int LoadSourceBlocks(CommandParameters& params, const RangeSet& tgt, size
params.cpos++;
} else {
RangeSet src = RangeSet::Parse(params.tokens[params.cpos++]);
+ CHECK(static_cast<bool>(src));
*overlap = src.Overlaps(tgt);
if (ReadBlocks(src, params.buffer, params.fd) == -1) {
@@ -938,6 +1044,7 @@ static int LoadSourceBlocks(CommandParameters& params, const RangeSet& tgt, size
}
RangeSet locs = RangeSet::Parse(params.tokens[params.cpos++]);
+ CHECK(static_cast<bool>(locs));
MoveRange(params.buffer, locs, params.buffer);
}
@@ -960,6 +1067,7 @@ static int LoadSourceBlocks(CommandParameters& params, const RangeSet& tgt, size
}
RangeSet locs = RangeSet::Parse(tokens[1]);
+ CHECK(static_cast<bool>(locs));
MoveRange(params.buffer, locs, stash);
}
@@ -1024,6 +1132,7 @@ static int LoadSrcTgtVersion3(CommandParameters& params, RangeSet& tgt, size_t*
// <tgt_range>
tgt = RangeSet::Parse(params.tokens[params.cpos++]);
+ CHECK(static_cast<bool>(tgt));
std::vector<uint8_t> tgtbuffer(tgt.blocks() * BLOCKSIZE);
if (ReadBlocks(tgt, tgtbuffer, params.fd) == -1) {
@@ -1054,6 +1163,10 @@ static int LoadSrcTgtVersion3(CommandParameters& params, RangeSet& tgt, size_t*
return -1;
}
+ if (!UpdateLastCommandIndex(params.cmdindex, params.cmdline)) {
+ LOG(WARNING) << "Failed to update the last command file.";
+ }
+
params.stashed += *src_blocks;
// Can be deleted when the write has completed.
if (!stash_exists) {
@@ -1094,8 +1207,11 @@ static int PerformCommandMove(CommandParameters& params) {
if (status == 0) {
params.foundwrites = true;
- } else if (params.foundwrites) {
- LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
+ } else {
+ params.target_verified = true;
+ if (params.foundwrites) {
+ LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
+ }
}
if (params.canwrite) {
@@ -1136,6 +1252,7 @@ static int PerformCommandStash(CommandParameters& params) {
}
RangeSet src = RangeSet::Parse(params.tokens[params.cpos++]);
+ CHECK(static_cast<bool>(src));
allocate(src.blocks() * BLOCKSIZE, params.buffer);
if (ReadBlocks(src, params.buffer, params.fd) == -1) {
@@ -1158,8 +1275,15 @@ static int PerformCommandStash(CommandParameters& params) {
}
LOG(INFO) << "stashing " << blocks << " blocks to " << id;
- params.stashed += blocks;
- return WriteStash(params.stashbase, id, blocks, params.buffer, false, nullptr);
+ int result = WriteStash(params.stashbase, id, blocks, params.buffer, false, nullptr);
+ if (result == 0) {
+ if (!UpdateLastCommandIndex(params.cmdindex, params.cmdline)) {
+ LOG(WARNING) << "Failed to update the last command file.";
+ }
+
+ params.stashed += blocks;
+ }
+ return result;
}
static int PerformCommandFree(CommandParameters& params) {
@@ -1186,6 +1310,7 @@ static int PerformCommandZero(CommandParameters& params) {
}
RangeSet tgt = RangeSet::Parse(params.tokens[params.cpos++]);
+ CHECK(static_cast<bool>(tgt));
LOG(INFO) << " zeroing " << tgt.blocks() << " blocks";
@@ -1228,6 +1353,7 @@ static int PerformCommandNew(CommandParameters& params) {
}
RangeSet tgt = RangeSet::Parse(params.tokens[params.cpos++]);
+ CHECK(static_cast<bool>(tgt));
if (params.canwrite) {
LOG(INFO) << " writing " << tgt.blocks() << " blocks of new data";
@@ -1285,8 +1411,11 @@ static int PerformCommandDiff(CommandParameters& params) {
if (status == 0) {
params.foundwrites = true;
- } else if (params.foundwrites) {
- LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
+ } else {
+ params.target_verified = true;
+ if (params.foundwrites) {
+ LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
+ }
}
if (params.canwrite) {
@@ -1297,7 +1426,7 @@ static int PerformCommandDiff(CommandParameters& params) {
RangeSinkWriter writer(params.fd, tgt);
if (params.cmdname[0] == 'i') { // imgdiff
- if (ApplyImagePatch(params.buffer.data(), blocks * BLOCKSIZE, &patch_value,
+ if (ApplyImagePatch(params.buffer.data(), blocks * BLOCKSIZE, patch_value,
std::bind(&RangeSinkWriter::Write, &writer, std::placeholders::_1,
std::placeholders::_2),
nullptr, nullptr) != 0) {
@@ -1306,7 +1435,7 @@ static int PerformCommandDiff(CommandParameters& params) {
return -1;
}
} else {
- if (ApplyBSDiffPatch(params.buffer.data(), blocks * BLOCKSIZE, &patch_value, 0,
+ if (ApplyBSDiffPatch(params.buffer.data(), blocks * BLOCKSIZE, patch_value, 0,
std::bind(&RangeSinkWriter::Write, &writer, std::placeholders::_1,
std::placeholders::_2),
nullptr) != 0) {
@@ -1358,6 +1487,7 @@ static int PerformCommandErase(CommandParameters& params) {
}
RangeSet tgt = RangeSet::Parse(params.tokens[params.cpos++]);
+ CHECK(static_cast<bool>(tgt));
if (params.canwrite) {
LOG(INFO) << " erasing " << tgt.blocks() << " blocks";
@@ -1495,7 +1625,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
std::vector<std::string> lines = android::base::Split(transfer_list_value->data, "\n");
if (lines.size() < 2) {
- ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zd]\n",
+ ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zd]",
lines.size());
return StringValue("");
}
@@ -1511,7 +1641,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
// Second line in transfer list is the total number of blocks we expect to write.
size_t total_blocks;
if (!android::base::ParseUint(lines[1], &total_blocks)) {
- ErrorAbort(state, kArgsParsingFailure, "unexpected block count [%s]\n", lines[1].c_str());
+ ErrorAbort(state, kArgsParsingFailure, "unexpected block count [%s]", lines[1].c_str());
return StringValue("");
}
@@ -1521,7 +1651,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
size_t start = 2;
if (lines.size() < 4) {
- ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zu]\n",
+ ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zu]",
lines.size());
return StringValue("");
}
@@ -1532,7 +1662,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
// Fourth line is the maximum number of blocks that will be stashed simultaneously
size_t stash_max_blocks;
if (!android::base::ParseUint(lines[3], &stash_max_blocks)) {
- ErrorAbort(state, kArgsParsingFailure, "unexpected maximum stash blocks [%s]\n",
+ ErrorAbort(state, kArgsParsingFailure, "unexpected maximum stash blocks [%s]",
lines[3].c_str());
return StringValue("");
}
@@ -1544,6 +1674,23 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
params.createdstash = res;
+ // When performing an update, save the index and cmdline of the current command into
+ // the last_command_file if this command writes to the stash either explicitly of implicitly.
+ // Upon resuming an update, read the saved index first; then
+ // 1. In verification mode, check if the 'move' or 'diff' commands before the saved index has
+ // the expected target blocks already. If not, these commands cannot be skipped and we need
+ // to attempt to execute them again. Therefore, we will delete the last_command_file so that
+ // the update will resume from the start of the transfer list.
+ // 2. In update mode, skip all commands before the saved index. Therefore, we can avoid deleting
+ // stashes with duplicate id unintentionally (b/69858743); and also speed up the update.
+ // If an update succeeds or is unresumable, delete the last_command_file.
+ int saved_last_command_index;
+ if (!ParseLastCommandFile(&saved_last_command_index)) {
+ DeleteLastCommandFile();
+ // We failed to parse the last command, set it explicitly to -1.
+ saved_last_command_index = -1;
+ }
+
start += 2;
// Build a map of the available commands
@@ -1559,14 +1706,20 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
int rc = -1;
// Subsequent lines are all individual transfer commands
- for (auto it = lines.cbegin() + start; it != lines.cend(); it++) {
- const std::string& line(*it);
+ for (size_t i = start; i < lines.size(); i++) {
+ const std::string& line = lines[i];
if (line.empty()) continue;
params.tokens = android::base::Split(line, " ");
params.cpos = 0;
+ if (i - start > std::numeric_limits<int>::max()) {
+ params.cmdindex = -1;
+ } else {
+ params.cmdindex = i - start;
+ }
params.cmdname = params.tokens[params.cpos++].c_str();
params.cmdline = line.c_str();
+ params.target_verified = false;
if (cmd_map.find(params.cmdname) == cmd_map.end()) {
LOG(ERROR) << "unexpected command [" << params.cmdname << "]";
@@ -1575,11 +1728,40 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
const Command* cmd = cmd_map[params.cmdname];
- if (cmd->f != nullptr && cmd->f(params) == -1) {
+ // Skip the command if we explicitly set the corresponding function pointer to nullptr, e.g.
+ // "erase" during block_image_verify.
+ if (cmd->f == nullptr) {
+ LOG(DEBUG) << "skip executing command [" << line << "]";
+ continue;
+ }
+
+ // Skip all commands before the saved last command index when resuming an update.
+ if (params.canwrite && params.cmdindex != -1 && params.cmdindex <= saved_last_command_index) {
+ LOG(INFO) << "Skipping already executed command: " << params.cmdindex
+ << ", last executed command for previous update: " << saved_last_command_index;
+ continue;
+ }
+
+ if (cmd->f(params) == -1) {
LOG(ERROR) << "failed to execute command [" << line << "]";
goto pbiudone;
}
+ // In verify mode, check if the commands before the saved last_command_index have been
+ // executed correctly. If some target blocks have unexpected contents, delete the last command
+ // file so that we will resume the update from the first command in the transfer list.
+ if (!params.canwrite && saved_last_command_index != -1 && params.cmdindex != -1 &&
+ params.cmdindex <= saved_last_command_index) {
+ // TODO(xunchang) check that the cmdline of the saved index is correct.
+ std::string cmdname = std::string(params.cmdname);
+ if ((cmdname == "move" || cmdname == "bsdiff" || cmdname == "imgdiff") &&
+ !params.target_verified) {
+ LOG(WARNING) << "Previously executed command " << saved_last_command_index << ": "
+ << params.cmdline << " doesn't produce expected target blocks.";
+ saved_last_command_index = -1;
+ DeleteLastCommandFile();
+ }
+ }
if (params.canwrite) {
if (ota_fsync(params.fd) == -1) {
failure_type = kFsyncFailure;
@@ -1591,29 +1773,45 @@ static Value* PerformBlockImageUpdate(const char* name, State* state,
}
}
+ rc = 0;
+
+pbiudone:
if (params.canwrite) {
- pthread_join(params.thread, nullptr);
+ pthread_mutex_lock(&params.nti.mu);
+ if (params.nti.receiver_available) {
+ LOG(WARNING) << "new data receiver is still available after executing all commands.";
+ }
+ params.nti.receiver_available = false;
+ pthread_cond_broadcast(&params.nti.cv);
+ pthread_mutex_unlock(&params.nti.mu);
+ int ret = pthread_join(params.thread, nullptr);
+ if (ret != 0) {
+ LOG(WARNING) << "pthread join returned with " << strerror(ret);
+ }
- LOG(INFO) << "wrote " << params.written << " blocks; expected " << total_blocks;
- LOG(INFO) << "stashed " << params.stashed << " blocks";
- LOG(INFO) << "max alloc needed was " << params.buffer.size();
+ if (rc == 0) {
+ LOG(INFO) << "wrote " << params.written << " blocks; expected " << total_blocks;
+ LOG(INFO) << "stashed " << params.stashed << " blocks";
+ LOG(INFO) << "max alloc needed was " << params.buffer.size();
- const char* partition = strrchr(blockdev_filename->data.c_str(), '/');
- if (partition != nullptr && *(partition + 1) != 0) {
- fprintf(cmd_pipe, "log bytes_written_%s: %zu\n", partition + 1, params.written * BLOCKSIZE);
- fprintf(cmd_pipe, "log bytes_stashed_%s: %zu\n", partition + 1, params.stashed * BLOCKSIZE);
- fflush(cmd_pipe);
+ const char* partition = strrchr(blockdev_filename->data.c_str(), '/');
+ if (partition != nullptr && *(partition + 1) != 0) {
+ fprintf(cmd_pipe, "log bytes_written_%s: %zu\n", partition + 1, params.written * BLOCKSIZE);
+ fprintf(cmd_pipe, "log bytes_stashed_%s: %zu\n", partition + 1, params.stashed * BLOCKSIZE);
+ fflush(cmd_pipe);
+ }
+ // Delete stash only after successfully completing the update, as it may contain blocks needed
+ // to complete the update later.
+ DeleteStash(params.stashbase);
+ DeleteLastCommandFile();
}
- // Delete stash only after successfully completing the update, as it may contain blocks needed
- // to complete the update later.
- DeleteStash(params.stashbase);
- } else {
+
+ pthread_mutex_destroy(&params.nti.mu);
+ pthread_cond_destroy(&params.nti.cv);
+ } else if (rc == 0) {
LOG(INFO) << "verified partition contents; update may be resumed";
}
- rc = 0;
-
-pbiudone:
if (ota_fsync(params.fd) == -1) {
failure_type = kFsyncFailure;
PLOG(ERROR) << "fsync failed";
@@ -1624,6 +1822,11 @@ pbiudone:
BrotliDecoderDestroyInstance(params.nti.brotli_decoder_state);
}
+ // Delete the last command file if the update cannot be resumed.
+ if (params.isunresumable) {
+ DeleteLastCommandFile();
+ }
+
// Only delete the stash if the update cannot be resumed, or it's a verification run and we
// created the stash.
if (params.isunresumable || (!params.canwrite && params.createdstash)) {
@@ -1748,6 +1951,7 @@ Value* RangeSha1Fn(const char* name, State* state, const std::vector<std::unique
}
RangeSet rs = RangeSet::Parse(ranges->data);
+ CHECK(static_cast<bool>(rs));
SHA_CTX ctx;
SHA1_Init(&ctx);
@@ -1859,6 +2063,11 @@ Value* BlockImageRecoverFn(const char* name, State* state,
ErrorAbort(state, kArgsParsingFailure, "ranges argument to %s must be string", name);
return StringValue("");
}
+ RangeSet rs = RangeSet::Parse(ranges->data);
+ if (!rs) {
+ ErrorAbort(state, kArgsParsingFailure, "failed to parse ranges: %s", ranges->data.c_str());
+ return StringValue("");
+ }
// Output notice to log when recover is attempted
LOG(INFO) << filename->data << " image corrupted, attempting to recover...";
@@ -1884,7 +2093,7 @@ Value* BlockImageRecoverFn(const char* name, State* state,
}
uint8_t buffer[BLOCKSIZE];
- for (const auto& range : RangeSet::Parse(ranges->data)) {
+ for (const auto& range : rs) {
for (size_t j = range.first; j < range.second; ++j) {
// Stay within the data area, libfec validates and corrects metadata
if (status.data_size <= static_cast<uint64_t>(j) * BLOCKSIZE) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-26 22:05:13 +0200