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-rw-r--r--applypatch/applypatch.cpp423
-rw-r--r--applypatch/bspatch.cpp14
-rw-r--r--applypatch/imgpatch.cpp26
-rw-r--r--applypatch/include/applypatch/applypatch.h19
-rw-r--r--applypatch/include/applypatch/imgpatch.h9
-rw-r--r--edify/expr.cpp2
-rw-r--r--install.cpp14
-rw-r--r--otafault/ota_io.cpp2
-rw-r--r--otafault/ota_io.h2
-rw-r--r--recovery.cpp82
-rw-r--r--screen_ui.cpp6
-rw-r--r--screen_ui.h6
-rw-r--r--tests/component/applypatch_test.cpp124
-rw-r--r--tests/component/imgdiff_test.cpp80
-rw-r--r--ui.cpp2
-rw-r--r--updater/blockimg.cpp1260
-rw-r--r--verifier.cpp2
-rw-r--r--verifier.h4
-rw-r--r--wear_touch.cpp2
19 files changed, 833 insertions, 1246 deletions
diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index 500663120..51bf3932a 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -27,11 +27,13 @@
#include <sys/types.h>
#include <unistd.h>
+#include <functional>
#include <memory>
#include <string>
#include <utility>
#include <vector>
+#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <android-base/strings.h>
#include <openssl/sha.h>
@@ -41,16 +43,10 @@
#include "print_sha1.h"
static int LoadPartitionContents(const std::string& filename, FileContents* file);
-static ssize_t FileSink(const unsigned char* data, ssize_t len, void* token);
-static int GenerateTarget(FileContents* source_file,
- const Value* source_patch_value,
- FileContents* copy_file,
- const Value* copy_patch_value,
- const char* source_filename,
- const char* target_filename,
- const uint8_t target_sha1[SHA_DIGEST_LENGTH],
- size_t target_size,
- const Value* bonus_data);
+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);
// Read a file into memory; store the file contents and associated metadata in *file.
// Return 0 on success.
@@ -190,7 +186,6 @@ static int LoadPartitionContents(const std::string& filename, FileContents* file
return 0;
}
-
// Save the contents of the given FileContents object under the given
// filename. Return 0 on success.
int SaveFileContents(const char* filename, const FileContents* file) {
@@ -200,8 +195,8 @@ int SaveFileContents(const char* filename, const FileContents* file) {
return -1;
}
- ssize_t bytes_written = FileSink(file->data.data(), file->data.size(), &fd);
- if (bytes_written != static_cast<ssize_t>(file->data.size())) {
+ 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));
return -1;
@@ -439,25 +434,17 @@ int ShowLicenses() {
return 0;
}
-ssize_t FileSink(const unsigned char* data, ssize_t len, void* token) {
- int fd = *static_cast<int*>(token);
- ssize_t done = 0;
- ssize_t wrote;
- while (done < len) {
- wrote = TEMP_FAILURE_RETRY(ota_write(fd, data+done, len-done));
- if (wrote == -1) {
- printf("error writing %zd bytes: %s\n", (len-done), strerror(errno));
- return done;
- }
- done += wrote;
+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));
+ if (wrote == -1) {
+ printf("error writing %zd bytes: %s\n", (len - done), strerror(errno));
+ return done;
}
- return done;
-}
-
-ssize_t MemorySink(const unsigned char* data, ssize_t len, void* token) {
- std::string* s = static_cast<std::string*>(token);
- s->append(reinterpret_cast<const char*>(data), len);
- return len;
+ done += wrote;
+ }
+ return done;
}
// Return the amount of free space (in bytes) on the filesystem
@@ -480,108 +467,90 @@ int CacheSizeCheck(size_t bytes) {
}
}
-// This function applies binary patches to files in a way that is safe
-// (the original file is not touched until we have the desired
-// replacement for it) and idempotent (it's okay to run this program
-// multiple times).
+// This function applies binary patches to EMMC target files in a way that is safe (the original
+// file is not touched until we have the desired replacement for it) and idempotent (it's okay to
+// run this program multiple times).
//
-// - if the sha1 hash of <target_filename> is <target_sha1_string>,
-// does nothing and exits successfully.
+// - If the SHA-1 hash of <target_filename> is <target_sha1_string>, does nothing and exits
+// successfully.
//
-// - otherwise, if the sha1 hash of <source_filename> is one of the
-// entries in <patch_sha1_str>, the corresponding patch from
-// <patch_data> (which must be a VAL_BLOB) is applied to produce a
-// new file (the type of patch is automatically detected from the
-// blob data). If that new file has sha1 hash <target_sha1_str>,
-// moves it to replace <target_filename>, and exits successfully.
-// Note that if <source_filename> and <target_filename> are not the
-// same, <source_filename> is NOT deleted on success.
-// <target_filename> may be the string "-" to mean "the same as
-// source_filename".
+// - Otherwise, if the SHA-1 hash of <source_filename> is one of the entries in <patch_sha1_str>,
+// the corresponding patch from <patch_data> (which must be a VAL_BLOB) is applied to produce a
+// new file (the type of patch is automatically detected from the blob data). If that new file
+// has SHA-1 hash <target_sha1_str>, moves it to replace <target_filename>, and exits
+// successfully. Note that if <source_filename> and <target_filename> are not the same,
+// <source_filename> is NOT deleted on success. <target_filename> may be the string "-" to mean
+// "the same as <source_filename>".
//
-// - otherwise, or if any error is encountered, exits with non-zero
-// status.
+// - Otherwise, or if any error is encountered, exits with non-zero status.
//
-// <source_filename> may refer to a partition to read the source data.
-// See the comments for the LoadPartitionContents() function above
-// for the format of such a filename.
-
-int applypatch(const char* source_filename,
- const char* target_filename,
- const char* target_sha1_str,
- size_t target_size,
+// <source_filename> must refer to an EMMC partition to read the source data. See the comments for
+// the LoadPartitionContents() function above for the format of such a filename. <target_size> has
+// become obsolete since we have dropped the support for patching non-EMMC targets (EMMC targets
+// have the size embedded in the filename).
+int applypatch(const char* source_filename, const char* target_filename,
+ const char* target_sha1_str, size_t target_size __unused,
const std::vector<std::string>& patch_sha1_str,
- const std::vector<std::unique_ptr<Value>>& patch_data,
- const Value* bonus_data) {
- printf("patch %s: ", source_filename);
+ const std::vector<std::unique_ptr<Value>>& patch_data, const Value* bonus_data) {
+ printf("patch %s: ", source_filename);
- if (target_filename[0] == '-' && target_filename[1] == '\0') {
- target_filename = source_filename;
- }
+ if (target_filename[0] == '-' && target_filename[1] == '\0') {
+ target_filename = source_filename;
+ }
- uint8_t target_sha1[SHA_DIGEST_LENGTH];
- if (ParseSha1(target_sha1_str, target_sha1) != 0) {
- printf("failed to parse tgt-sha1 \"%s\"\n", target_sha1_str);
- return 1;
- }
+ if (strncmp(target_filename, "EMMC:", 5) != 0) {
+ printf("Supporting patching EMMC targets only.\n");
+ return 1;
+ }
- FileContents source_file;
- const Value* source_patch_value = nullptr;
+ uint8_t target_sha1[SHA_DIGEST_LENGTH];
+ if (ParseSha1(target_sha1_str, target_sha1) != 0) {
+ printf("failed to parse tgt-sha1 \"%s\"\n", target_sha1_str);
+ return 1;
+ }
- // We try to load the target file into the source_file object.
- if (LoadFileContents(target_filename, &source_file) == 0) {
- if (memcmp(source_file.sha1, target_sha1, SHA_DIGEST_LENGTH) == 0) {
- // The early-exit case: the patch was already applied, this file
- // has the desired hash, nothing for us to do.
- printf("already %s\n", short_sha1(target_sha1).c_str());
- return 0;
- }
+ // We try to load the target file into the source_file object.
+ FileContents source_file;
+ if (LoadFileContents(target_filename, &source_file) == 0) {
+ if (memcmp(source_file.sha1, target_sha1, SHA_DIGEST_LENGTH) == 0) {
+ // The early-exit case: the patch was already applied, this file has the desired hash, nothing
+ // for us to do.
+ printf("already %s\n", short_sha1(target_sha1).c_str());
+ return 0;
}
+ }
- if (source_file.data.empty() ||
- (target_filename != source_filename &&
- strcmp(target_filename, source_filename) != 0)) {
- // Need to load the source file: either we failed to load the
- // target file, or we did but it's different from the source file.
- source_file.data.clear();
- LoadFileContents(source_filename, &source_file);
- }
+ if (source_file.data.empty() ||
+ (target_filename != source_filename && strcmp(target_filename, source_filename) != 0)) {
+ // Need to load the source file: either we failed to load the target file, or we did but it's
+ // different from the expected.
+ source_file.data.clear();
+ LoadFileContents(source_filename, &source_file);
+ }
- if (!source_file.data.empty()) {
- int to_use = FindMatchingPatch(source_file.sha1, patch_sha1_str);
- if (to_use >= 0) {
- source_patch_value = patch_data[to_use].get();
- }
+ if (!source_file.data.empty()) {
+ int to_use = FindMatchingPatch(source_file.sha1, patch_sha1_str);
+ if (to_use != -1) {
+ return GenerateTarget(source_file, patch_data[to_use], target_filename, target_sha1,
+ bonus_data);
}
+ }
- FileContents copy_file;
- const Value* copy_patch_value = nullptr;
- if (source_patch_value == nullptr) {
- source_file.data.clear();
- printf("source file is bad; trying copy\n");
-
- if (LoadFileContents(CACHE_TEMP_SOURCE, &copy_file) < 0) {
- // fail.
- printf("failed to read copy file\n");
- return 1;
- }
+ printf("source file is bad; trying copy\n");
- int to_use = FindMatchingPatch(copy_file.sha1, patch_sha1_str);
- if (to_use >= 0) {
- copy_patch_value = patch_data[to_use].get();
- }
+ FileContents copy_file;
+ if (LoadFileContents(CACHE_TEMP_SOURCE, &copy_file) < 0) {
+ printf("failed to read copy file\n");
+ return 1;
+ }
- if (copy_patch_value == nullptr) {
- // fail.
- printf("copy file doesn't match source SHA-1s either\n");
- return 1;
- }
- }
+ int to_use = FindMatchingPatch(copy_file.sha1, patch_sha1_str);
+ if (to_use == -1) {
+ printf("copy file doesn't match source SHA-1s either\n");
+ return 1;
+ }
- return GenerateTarget(&source_file, source_patch_value,
- &copy_file, copy_patch_value,
- source_filename, target_filename,
- target_sha1, target_size, bonus_data);
+ return GenerateTarget(copy_file, patch_data[to_use], target_filename, target_sha1, bonus_data);
}
/*
@@ -638,34 +607,9 @@ int applypatch_flash(const char* source_filename, const char* target_filename,
return 0;
}
-static int GenerateTarget(FileContents* source_file,
- const Value* source_patch_value,
- FileContents* copy_file,
- const Value* copy_patch_value,
- const char* source_filename,
- const char* target_filename,
- const uint8_t target_sha1[SHA_DIGEST_LENGTH],
- size_t target_size,
- const Value* bonus_data) {
- // assume that target_filename (eg "/system/app/Foo.apk") is located
- // on the same filesystem as its top-level directory ("/system").
- // We need something that exists for calling statfs().
- std::string target_fs = target_filename;
- auto slash_pos = target_fs.find('/', 1);
- if (slash_pos != std::string::npos) {
- target_fs.resize(slash_pos);
- }
-
- FileContents* source_to_use;
- const Value* patch;
- if (source_patch_value != nullptr) {
- source_to_use = source_file;
- patch = source_patch_value;
- } else {
- source_to_use = copy_file;
- patch = copy_patch_value;
- }
-
+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) {
if (patch->type != VAL_BLOB) {
printf("patch is not a blob\n");
return 1;
@@ -683,137 +627,41 @@ static int GenerateTarget(FileContents* source_file,
return 1;
}
- bool target_is_partition = (strncmp(target_filename, "EMMC:", 5) == 0);
- const std::string tmp_target_filename = std::string(target_filename) + ".patch";
-
- int retry = 1;
- bool made_copy = false;
- SHA_CTX ctx;
- std::string memory_sink_str; // Don't need to reserve space.
- do {
- // Is there enough room in the target filesystem to hold the patched file?
-
- if (target_is_partition) {
- // If the target is a partition, we're actually going to
- // write the output to /tmp and then copy it to the
- // partition. statfs() always returns 0 blocks free for
- // /tmp, so instead we'll just assume that /tmp has enough
- // space to hold the file.
-
- // We still write the original source to cache, in case
- // the partition write is interrupted.
- if (MakeFreeSpaceOnCache(source_file->data.size()) < 0) {
- printf("not enough free space on /cache\n");
- return 1;
- }
- if (SaveFileContents(CACHE_TEMP_SOURCE, source_file) < 0) {
- printf("failed to back up source file\n");
- return 1;
- }
- made_copy = true;
- retry = 0;
- } else {
- bool enough_space = false;
- if (retry > 0) {
- size_t free_space = FreeSpaceForFile(target_fs.c_str());
- enough_space = (free_space > (256 << 10)) && // 256k (two-block) minimum
- (free_space > (target_size * 3 / 2)); // 50% margin of error
- if (!enough_space) {
- printf("target %zu bytes; free space %zu bytes; retry %d; enough %d\n", target_size,
- free_space, retry, enough_space);
- }
- }
-
- if (!enough_space) {
- retry = 0;
- }
+ CHECK(android::base::StartsWith(target_filename, "EMMC:"));
- if (!enough_space && source_patch_value != nullptr) {
- // Using the original source, but not enough free space. First
- // copy the source file to cache, then delete it from the original
- // location.
-
- if (strncmp(source_filename, "EMMC:", 5) == 0) {
- // It's impossible to free space on the target filesystem by
- // deleting the source if the source is a partition. If
- // we're ever in a state where we need to do this, fail.
- printf("not enough free space for target but source is partition\n");
- return 1;
- }
-
- if (MakeFreeSpaceOnCache(source_file->data.size()) < 0) {
- printf("not enough free space on /cache\n");
- return 1;
- }
-
- if (SaveFileContents(CACHE_TEMP_SOURCE, source_file) < 0) {
- printf("failed to back up source file\n");
- return 1;
- }
- made_copy = true;
- unlink(source_filename);
-
- size_t free_space = FreeSpaceForFile(target_fs.c_str());
- printf("(now %zu bytes free for target) ", free_space);
- }
- }
-
- SinkFn sink = nullptr;
- void* token = nullptr;
- unique_fd output_fd;
- if (target_is_partition) {
- // We store the decoded output in memory.
- sink = MemorySink;
- token = &memory_sink_str;
- } else {
- // We write the decoded output to "<tgt-file>.patch".
- output_fd.reset(ota_open(tmp_target_filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_SYNC,
- S_IRUSR | S_IWUSR));
- if (output_fd == -1) {
- printf("failed to open output file %s: %s\n", tmp_target_filename.c_str(), strerror(errno));
- return 1;
- }
- sink = FileSink;
- token = &output_fd;
- }
+ // We still write the original source to cache, in case the partition write is interrupted.
+ if (MakeFreeSpaceOnCache(source_file.data.size()) < 0) {
+ printf("not enough free space on /cache\n");
+ return 1;
+ }
+ if (SaveFileContents(CACHE_TEMP_SOURCE, &source_file) < 0) {
+ printf("failed to back up source file\n");
+ return 1;
+ }
- SHA1_Init(&ctx);
+ // We store the decoded output in memory.
+ std::string memory_sink_str; // Don't need to reserve space.
+ SinkFn sink = [&memory_sink_str](const unsigned char* data, size_t len) {
+ memory_sink_str.append(reinterpret_cast<const char*>(data), len);
+ return len;
+ };
- int result;
- if (use_bsdiff) {
- result = ApplyBSDiffPatch(source_to_use->data.data(), source_to_use->data.size(), patch, 0,
- sink, token, &ctx);
- } else {
- result = ApplyImagePatch(source_to_use->data.data(), source_to_use->data.size(), patch, sink,
- token, &ctx, bonus_data);
- }
+ SHA_CTX ctx;
+ SHA1_Init(&ctx);
- if (!target_is_partition) {
- if (ota_fsync(output_fd) != 0) {
- printf("failed to fsync file \"%s\": %s\n", tmp_target_filename.c_str(), strerror(errno));
- result = 1;
- }
- if (ota_close(output_fd) != 0) {
- printf("failed to close file \"%s\": %s\n", tmp_target_filename.c_str(), strerror(errno));
- result = 1;
- }
- }
+ int result;
+ if (use_bsdiff) {
+ result = ApplyBSDiffPatch(source_file.data.data(), source_file.data.size(), patch.get(), 0,
+ sink, &ctx);
+ } else {
+ result = ApplyImagePatch(source_file.data.data(), source_file.data.size(), patch.get(), sink,
+ &ctx, bonus_data);
+ }
- if (result != 0) {
- if (retry == 0) {
- printf("applying patch failed\n");
- return 1;
- } else {
- printf("applying patch failed; retrying\n");
- }
- if (!target_is_partition) {
- unlink(tmp_target_filename.c_str());
- }
- } else {
- // succeeded; no need to retry
- break;
- }
- } while (retry-- > 0);
+ if (result != 0) {
+ printf("applying patch failed\n");
+ return 1;
+ }
uint8_t current_target_sha1[SHA_DIGEST_LENGTH];
SHA1_Final(current_target_sha1, &ctx);
@@ -824,36 +672,15 @@ static int GenerateTarget(FileContents* source_file,
printf("now %s\n", short_sha1(target_sha1).c_str());
}
- if (target_is_partition) {
- // Copy the temp file to the partition.
- if (WriteToPartition(reinterpret_cast<const unsigned char*>(memory_sink_str.c_str()),
- memory_sink_str.size(), target_filename) != 0) {
- printf("write of patched data to %s failed\n", target_filename);
- return 1;
- }
- } else {
- // Give the .patch file the same owner, group, and mode of the original source file.
- if (chmod(tmp_target_filename.c_str(), source_to_use->st.st_mode) != 0) {
- printf("chmod of \"%s\" failed: %s\n", tmp_target_filename.c_str(), strerror(errno));
- return 1;
- }
- if (chown(tmp_target_filename.c_str(), source_to_use->st.st_uid,
- source_to_use->st.st_gid) != 0) {
- printf("chown of \"%s\" failed: %s\n", tmp_target_filename.c_str(), strerror(errno));
- return 1;
- }
-
- // Finally, rename the .patch file to replace the target file.
- if (rename(tmp_target_filename.c_str(), target_filename) != 0) {
- printf("rename of .patch to \"%s\" failed: %s\n", target_filename, strerror(errno));
- return 1;
- }
+ // Write back the temp file to the partition.
+ if (WriteToPartition(reinterpret_cast<const unsigned char*>(memory_sink_str.c_str()),
+ memory_sink_str.size(), target_filename) != 0) {
+ printf("write of patched data to %s failed\n", target_filename.c_str());
+ return 1;
}
- // If this run of applypatch created the copy, and we're here, we can delete it.
- if (made_copy) {
- unlink(CACHE_TEMP_SOURCE);
- }
+ // Delete the backup copy of the source.
+ unlink(CACHE_TEMP_SOURCE);
// Success!
return 0;
diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp
index 9920c2be1..f75a2c680 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"
@@ -60,10 +60,10 @@ void ShowBSDiffLicense() {
);
}
-int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, const Value* patch,
- ssize_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);
+int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
+ 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;
};
@@ -72,8 +72,8 @@ int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, const Valu
patch->data.size(), sha_sink);
}
-int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, const Value* patch,
- ssize_t patch_offset, std::vector<unsigned char>* new_data) {
+int ApplyBSDiffPatchMem(const unsigned char* old_data, size_t old_size, const Value* patch,
+ size_t patch_offset, std::vector<unsigned char>* new_data) {
auto vector_sink = [new_data](const uint8_t* data, size_t len) {
new_data->insert(new_data->end(), data, data + len);
return len;
diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp
index adcc61fd6..7d8b7361c 100644
--- a/applypatch/imgpatch.cpp
+++ b/applypatch/imgpatch.cpp
@@ -43,12 +43,11 @@ static inline int32_t Read4(const void *address) {
return android::base::get_unaligned<int32_t>(address);
}
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
- const unsigned char* patch_data, ssize_t patch_size,
- SinkFn sink, void* token) {
+int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const unsigned char* patch_data,
+ 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);
}
/*
@@ -57,8 +56,8 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
* file, and update the SHA context with the output data as well.
* Return 0 on success.
*/
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value* patch,
- SinkFn sink, void* token, SHA_CTX* ctx, const Value* bonus_data) {
+int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const Value* patch, SinkFn sink,
+ SHA_CTX* ctx, const Value* bonus_data) {
if (patch->data.size() < 12) {
printf("patch too short to contain header\n");
return -1;
@@ -97,11 +96,11 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
size_t src_len = static_cast<size_t>(Read8(normal_header + 8));
size_t patch_offset = static_cast<size_t>(Read8(normal_header + 16));
- if (src_start + src_len > static_cast<size_t>(old_size)) {
+ if (src_start + src_len > old_size) {
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;
@@ -110,15 +109,14 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
return -1;
}
- ssize_t data_len = Read4(raw_header);
+ size_t data_len = static_cast<size_t>(Read4(raw_header));
if (pos + data_len > patch->data.size()) {
printf("failed to read chunk %d raw data\n", i);
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;
}
@@ -143,7 +141,7 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
int memLevel = Read4(deflate_header + 52);
int strategy = Read4(deflate_header + 56);
- if (src_start + src_len > static_cast<size_t>(old_size)) {
+ if (src_start + src_len > old_size) {
printf("source data too short\n");
return -1;
}
@@ -240,9 +238,9 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
strm.avail_out = temp_data.size();
strm.next_out = temp_data.data();
ret = deflate(&strm, Z_FINISH);
- ssize_t have = temp_data.size() - strm.avail_out;
+ 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 4489decb6..da55432d5 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 @@ struct FileContents {
// and use it as the source instead.
#define CACHE_TEMP_SOURCE "/cache/saved.file"
-typedef ssize_t (*SinkFn)(const unsigned char*, ssize_t, void*);
+using SinkFn = std::function<size_t(const unsigned char*, size_t)>;
// applypatch.cpp
int ShowLicenses();
@@ -66,18 +67,14 @@ int SaveFileContents(const char* filename, const FileContents* file);
// bspatch.cpp
void ShowBSDiffLicense();
-int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size,
- const Value* patch, ssize_t patch_offset,
- SinkFn sink, void* token, SHA_CTX* ctx);
-int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size,
- const Value* patch, ssize_t patch_offset,
- std::vector<unsigned char>* new_data);
+int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
+ 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, ssize_t old_size,
- const Value* patch,
- SinkFn sink, void* token, SHA_CTX* ctx,
- const Value* bonus_data);
+int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const Value* patch, SinkFn sink,
+ 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 6549f79f0..07c66094f 100644
--- a/applypatch/include/applypatch/imgpatch.h
+++ b/applypatch/include/applypatch/imgpatch.h
@@ -19,10 +19,11 @@
#include <sys/types.h>
-using SinkFn = ssize_t (*)(const unsigned char*, ssize_t, void*);
+#include <functional>
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
- const unsigned char* patch_data, ssize_t patch_size,
- SinkFn sink, void* token);
+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);
#endif // _APPLYPATCH_IMGPATCH_H
diff --git a/edify/expr.cpp b/edify/expr.cpp
index 2b7fd7a6a..54ab3325c 100644
--- a/edify/expr.cpp
+++ b/edify/expr.cpp
@@ -357,7 +357,7 @@ bool ReadArgs(State* state, const std::vector<std::unique_ptr<Expr>>& argv,
if (args == nullptr) {
return false;
}
- if (len == 0 || start + len > argv.size()) {
+ if (start + len > argv.size()) {
return false;
}
for (size_t i = start; i < start + len; ++i) {
diff --git a/install.cpp b/install.cpp
index db8fb97db..7cef44a37 100644
--- a/install.cpp
+++ b/install.cpp
@@ -546,17 +546,21 @@ install_package(const char* path, bool* wipe_cache, const char* install_file,
std::chrono::duration<double> duration = std::chrono::system_clock::now() - start;
int time_total = static_cast<int>(duration.count());
- if (ensure_path_mounted(UNCRYPT_STATUS) != 0) {
+ bool has_cache = volume_for_path("/cache") != nullptr;
+ // Skip logging the uncrypt_status on devices without /cache.
+ if (has_cache) {
+ if (ensure_path_mounted(UNCRYPT_STATUS) != 0) {
LOG(WARNING) << "Can't mount " << UNCRYPT_STATUS;
- } else {
+ } else {
std::string uncrypt_status;
if (!android::base::ReadFileToString(UNCRYPT_STATUS, &uncrypt_status)) {
- PLOG(WARNING) << "failed to read uncrypt status";
+ PLOG(WARNING) << "failed to read uncrypt status";
} else if (!android::base::StartsWith(uncrypt_status, "uncrypt_")) {
- PLOG(WARNING) << "corrupted uncrypt_status: " << uncrypt_status;
+ LOG(WARNING) << "corrupted uncrypt_status: " << uncrypt_status;
} else {
- log_buffer.push_back(android::base::Trim(uncrypt_status));
+ log_buffer.push_back(android::base::Trim(uncrypt_status));
}
+ }
}
// The first two lines need to be the package name and install result.
diff --git a/otafault/ota_io.cpp b/otafault/ota_io.cpp
index f5b01136f..3a89bb5dd 100644
--- a/otafault/ota_io.cpp
+++ b/otafault/ota_io.cpp
@@ -89,7 +89,7 @@ static int __ota_fclose(FILE* fh) {
return fclose(fh);
}
-void OtaFcloser::operator()(FILE* f) {
+void OtaFcloser::operator()(FILE* f) const {
__ota_fclose(f);
};
diff --git a/otafault/ota_io.h b/otafault/ota_io.h
index 395b4230e..9428f1b1f 100644
--- a/otafault/ota_io.h
+++ b/otafault/ota_io.h
@@ -59,7 +59,7 @@ using unique_fd = android::base::unique_fd_impl<OtaCloser>;
int ota_close(unique_fd& fd);
struct OtaFcloser {
- void operator()(FILE*);
+ void operator()(FILE*) const;
};
using unique_file = std::unique_ptr<FILE, OtaFcloser>;
diff --git a/recovery.cpp b/recovery.cpp
index a374eed8a..b24efa963 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -752,13 +752,15 @@ static bool wipe_data(Device* device) {
static bool prompt_and_wipe_data(Device* device) {
const char* const headers[] = {
- "Boot halted, user data is corrupt",
- "Wipe all user data to recover",
+ "Can't load Android system. Your data may be corrupt.",
+ "If you continue to get this message, you may need to",
+ "perform a factory data reset and erase all user data",
+ "stored on this device.",
NULL
};
const char* const items[] = {
- "Retry boot",
- "Wipe user data",
+ "Try again",
+ "Factory data reset",
NULL
};
for (;;) {
@@ -791,47 +793,45 @@ static bool wipe_cache(bool should_confirm, Device* device) {
return success;
}
-// Secure-wipe a given partition. It uses BLKSECDISCARD, if supported.
-// Otherwise, it goes with BLKDISCARD (if device supports BLKDISCARDZEROES) or
-// BLKZEROOUT.
+// Secure-wipe a given partition. It uses BLKSECDISCARD, if supported. Otherwise, it goes with
+// BLKDISCARD (if device supports BLKDISCARDZEROES) or BLKZEROOUT.
static bool secure_wipe_partition(const std::string& partition) {
- android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(partition.c_str(), O_WRONLY)));
- if (fd == -1) {
- PLOG(ERROR) << "failed to open \"" << partition << "\"";
- return false;
- }
+ android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(partition.c_str(), O_WRONLY)));
+ if (fd == -1) {
+ PLOG(ERROR) << "Failed to open \"" << partition << "\"";
+ return false;
+ }
- uint64_t range[2] = {0, 0};
- if (ioctl(fd, BLKGETSIZE64, &range[1]) == -1 || range[1] == 0) {
- PLOG(ERROR) << "failed to get partition size";
+ uint64_t range[2] = { 0, 0 };
+ if (ioctl(fd, BLKGETSIZE64, &range[1]) == -1 || range[1] == 0) {
+ PLOG(ERROR) << "Failed to get partition size";
+ return false;
+ }
+ LOG(INFO) << "Secure-wiping \"" << partition << "\" from " << range[0] << " to " << range[1];
+
+ LOG(INFO) << " Trying BLKSECDISCARD...";
+ if (ioctl(fd, BLKSECDISCARD, &range) == -1) {
+ PLOG(WARNING) << " Failed";
+
+ // Use BLKDISCARD if it zeroes out blocks, otherwise use BLKZEROOUT.
+ unsigned int zeroes;
+ if (ioctl(fd, BLKDISCARDZEROES, &zeroes) == 0 && zeroes != 0) {
+ LOG(INFO) << " Trying BLKDISCARD...";
+ if (ioctl(fd, BLKDISCARD, &range) == -1) {
+ PLOG(ERROR) << " Failed";
return false;
+ }
+ } else {
+ LOG(INFO) << " Trying BLKZEROOUT...";
+ if (ioctl(fd, BLKZEROOUT, &range) == -1) {
+ PLOG(ERROR) << " Failed";
+ return false;
+ }
}
- printf("Secure-wiping \"%s\" from %" PRIu64 " to %" PRIu64 ".\n",
- partition.c_str(), range[0], range[1]);
-
- printf("Trying BLKSECDISCARD...\t");
- if (ioctl(fd, BLKSECDISCARD, &range) == -1) {
- printf("failed: %s\n", strerror(errno));
-
- // Use BLKDISCARD if it zeroes out blocks, otherwise use BLKZEROOUT.
- unsigned int zeroes;
- if (ioctl(fd, BLKDISCARDZEROES, &zeroes) == 0 && zeroes != 0) {
- printf("Trying BLKDISCARD...\t");
- if (ioctl(fd, BLKDISCARD, &range) == -1) {
- printf("failed: %s\n", strerror(errno));
- return false;
- }
- } else {
- printf("Trying BLKZEROOUT...\t");
- if (ioctl(fd, BLKZEROOUT, &range) == -1) {
- printf("failed: %s\n", strerror(errno));
- return false;
- }
- }
- }
+ }
- printf("done\n");
- return true;
+ LOG(INFO) << " Done";
+ return true;
}
// Check if the wipe package matches expectation:
@@ -863,7 +863,7 @@ static bool check_wipe_package(size_t wipe_package_size) {
return false;
}
std::string metadata;
- if (!read_metadata_from_package(&zip, &metadata)) {
+ if (!read_metadata_from_package(zip, &metadata)) {
CloseArchive(zip);
return false;
}
diff --git a/screen_ui.cpp b/screen_ui.cpp
index 706877b4d..bb2772dd8 100644
--- a/screen_ui.cpp
+++ b/screen_ui.cpp
@@ -98,7 +98,7 @@ GRSurface* ScreenRecoveryUI::GetCurrentText() {
}
}
-int ScreenRecoveryUI::PixelsFromDp(int dp) {
+int ScreenRecoveryUI::PixelsFromDp(int dp) const {
return dp * density_;
}
@@ -256,12 +256,12 @@ void ScreenRecoveryUI::DrawHorizontalRule(int* y) {
*y += 4;
}
-void ScreenRecoveryUI::DrawTextLine(int x, int* y, const char* line, bool bold) {
+void ScreenRecoveryUI::DrawTextLine(int x, int* y, const char* line, bool bold) const {
gr_text(gr_sys_font(), x, *y, line, bold);
*y += char_height_ + 4;
}
-void ScreenRecoveryUI::DrawTextLines(int x, int* y, const char* const* lines) {
+void ScreenRecoveryUI::DrawTextLines(int x, int* y, const char* const* lines) const {
for (size_t i = 0; lines != nullptr && lines[i] != nullptr; ++i) {
DrawTextLine(x, y, lines[i], false);
}
diff --git a/screen_ui.h b/screen_ui.h
index b2dcf4aeb..a2322c36c 100644
--- a/screen_ui.h
+++ b/screen_ui.h
@@ -160,14 +160,14 @@ class ScreenRecoveryUI : public RecoveryUI {
void LoadBitmap(const char* filename, GRSurface** surface);
void LoadLocalizedBitmap(const char* filename, GRSurface** surface);
- int PixelsFromDp(int dp);
+ int PixelsFromDp(int dp) const;
virtual int GetAnimationBaseline();
virtual int GetProgressBaseline();
virtual int GetTextBaseline();
void DrawHorizontalRule(int* y);
- void DrawTextLine(int x, int* y, const char* line, bool bold);
- void DrawTextLines(int x, int* y, const char* const* lines);
+ void DrawTextLine(int x, int* y, const char* line, bool bold) const;
+ void DrawTextLines(int x, int* y, const char* const* lines) const;
};
#endif // RECOVERY_UI_H
diff --git a/tests/component/applypatch_test.cpp b/tests/component/applypatch_test.cpp
index d178303aa..5cba68f8a 100644
--- a/tests/component/applypatch_test.cpp
+++ b/tests/component/applypatch_test.cpp
@@ -280,66 +280,6 @@ TEST_F(ApplyPatchCacheTest, CheckCacheMissingFailure) {
ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
}
-TEST_F(ApplyPatchFullTest, ApplyInPlace) {
- std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
- ASSERT_EQ(0, applypatch(&old_file[0], "-", &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_TRUE(file_cmp(old_file, new_file));
-
- // reapply, applypatch is idempotent so it should succeed
- ASSERT_EQ(0, applypatch(&old_file[0], "-", &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_TRUE(file_cmp(old_file, new_file));
-}
-
-TEST_F(ApplyPatchFullTest, ApplyInNewLocation) {
- std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
- // Apply bsdiff patch to new location.
- ASSERT_EQ(
- 0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_TRUE(file_cmp(output_loc, new_file));
-
- // Reapply to the same location.
- ASSERT_EQ(
- 0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_TRUE(file_cmp(output_loc, new_file));
-}
-
-TEST_F(ApplyPatchFullTest, ApplyCorruptedInNewLocation) {
- std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
- // Apply bsdiff patch to new location with corrupted source.
- mangle_file(old_file);
- ASSERT_EQ(
- 0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_TRUE(file_cmp(output_loc, new_file));
-
- // Reapply bsdiff patch to new location with corrupted source.
- ASSERT_EQ(
- 0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_TRUE(file_cmp(output_loc, new_file));
-}
-
-TEST_F(ApplyPatchDoubleCacheTest, ApplyDoubleCorruptedInNewLocation) {
- std::vector<std::string> sha1s = { bad_sha1_a, old_sha1 };
-
- // Apply bsdiff patch to new location with corrupted source and copy (no new file).
- // Expected to fail.
- mangle_file(old_file);
- mangle_file(cache_file);
- ASSERT_NE(
- 0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_FALSE(file_cmp(output_loc, new_file));
-
- // Expected to fail again on retry.
- ASSERT_NE(
- 0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_FALSE(file_cmp(output_loc, new_file));
-
- // Expected to fail with incorrect new file.
- mangle_file(output_loc);
- ASSERT_NE(
- 0, applypatch(&old_file[0], &output_loc[0], &new_sha1[0], new_size, sha1s, patches, nullptr));
- ASSERT_FALSE(file_cmp(output_loc, new_file));
-}
-
TEST(ApplyPatchModesTest, InvalidArgs) {
// At least two args (including the filename).
ASSERT_EQ(2, applypatch_modes(1, (const char* []){ "applypatch" }));
@@ -348,70 +288,6 @@ TEST(ApplyPatchModesTest, InvalidArgs) {
ASSERT_EQ(2, applypatch_modes(2, (const char* []){ "applypatch", "-x" }));
}
-TEST(ApplyPatchModesTest, PatchMode) {
- std::string boot_img = from_testdata_base("boot.img");
- size_t boot_img_size;
- std::string boot_img_sha1;
- sha1sum(boot_img, &boot_img_sha1, &boot_img_size);
-
- std::string recovery_img = from_testdata_base("recovery.img");
- std::string recovery_img_sha1;
- size_t size;
- sha1sum(recovery_img, &recovery_img_sha1, &size);
- std::string recovery_img_size = std::to_string(size);
- std::string bonus_file = from_testdata_base("bonus.file");
-
- // applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size> <src-sha1>:<patch>
- TemporaryFile tmp1;
- std::string patch = boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot.p");
- std::vector<const char*> args = {
- "applypatch",
- "-b",
- bonus_file.c_str(),
- boot_img.c_str(),
- tmp1.path,
- recovery_img_sha1.c_str(),
- recovery_img_size.c_str(),
- patch.c_str()
- };
- ASSERT_EQ(0, applypatch_modes(args.size(), args.data()));
-
- // applypatch <src-file> <tgt-file> <tgt-sha1> <tgt-size> <src-sha1>:<patch>
- TemporaryFile tmp2;
- patch = boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot-with-bonus.p");
- std::vector<const char*> args2 = {
- "applypatch",
- boot_img.c_str(),
- tmp2.path,
- recovery_img_sha1.c_str(),
- recovery_img_size.c_str(),
- patch.c_str()
- };
- ASSERT_EQ(0, applypatch_modes(args2.size(), args2.data()));
-
- // applypatch -b <bonus-file> <src-file> <tgt-file> <tgt-sha1> <tgt-size> \
- // <src-sha1-fake>:<patch1> <src-sha1>:<patch2>
- TemporaryFile tmp3;
- std::string bad_sha1_a = android::base::StringPrintf("%040x", rand());
- std::string bad_sha1_b = android::base::StringPrintf("%040x", rand());
- std::string patch1 = bad_sha1_a + ":" + from_testdata_base("recovery-from-boot.p");
- std::string patch2 = boot_img_sha1 + ":" + from_testdata_base("recovery-from-boot.p");
- std::string patch3 = bad_sha1_b + ":" + from_testdata_base("recovery-from-boot.p");
- std::vector<const char*> args3 = {
- "applypatch",
- "-b",
- bonus_file.c_str(),
- boot_img.c_str(),
- tmp3.path,
- recovery_img_sha1.c_str(),
- recovery_img_size.c_str(),
- patch1.c_str(),
- patch2.c_str(),
- patch3.c_str()
- };
- ASSERT_EQ(0, applypatch_modes(args3.size(), args3.data()));
-}
-
TEST(ApplyPatchModesTest, PatchModeEmmcTarget) {
std::string boot_img = from_testdata_base("boot.img");
size_t boot_img_size;
diff --git a/tests/component/imgdiff_test.cpp b/tests/component/imgdiff_test.cpp
index 2f648501c..7d00a3d53 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 ssize_t MemorySink(const unsigned char* data, ssize_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 @@ static void verify_patch_header(const std::string& patch, size_t* num_normal, si
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 @@ TEST(ImgdiffTest, image_mode_smoke) {
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 @@ TEST(ImgdiffTest, zip_mode_smoke_store) {
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 @@ TEST(ImgdiffTest, zip_mode_smoke_compressed) {
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 @@ TEST(ImgdiffTest, zip_mode_smoke_trailer_zeros) {
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 @@ TEST(ImgdiffTest, image_mode_simple) {
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 @@ TEST(ImgdiffTest, image_mode_merge_chunks) {
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 @@ TEST(ImgdiffTest, image_mode_spurious_magic) {
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 @@ TEST(ImgdiffTest, image_mode_short_input1) {
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 @@ TEST(ImgdiffTest, image_mode_short_input2) {
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 @@ TEST(ImgdiffTest, image_mode_single_entry_long) {
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/ui.cpp b/ui.cpp
index a796461c8..9194ae3df 100644
--- a/ui.cpp
+++ b/ui.cpp
@@ -240,7 +240,7 @@ void RecoveryUI::ProcessKey(int key_code, int updown) {
}
void* RecoveryUI::time_key_helper(void* cookie) {
- key_timer_t* info = (key_timer_t*) cookie;
+ key_timer_t* info = static_cast<key_timer_t*>(cookie);
info->ui->time_key(info->key_code, info->count);
delete info;
return nullptr;
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index 12ca151a1..8c0f885a1 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -240,57 +240,54 @@ struct RangeSinkState {
size_t p_remain;
};
-static ssize_t RangeSinkWrite(const uint8_t* data, ssize_t size, void* token) {
- RangeSinkState* rss = reinterpret_cast<RangeSinkState*>(token);
-
- if (rss->p_remain == 0) {
- LOG(ERROR) << "range sink write overrun";
- return 0;
- }
-
- ssize_t written = 0;
- while (size > 0) {
- size_t write_now = size;
-
- if (rss->p_remain < write_now) {
- write_now = rss->p_remain;
- }
+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;
+ }
- if (write_all(rss->fd, data, write_now) == -1) {
- break;
- }
+ size_t written = 0;
+ while (size > 0) {
+ size_t write_now = size;
- data += write_now;
- size -= write_now;
+ if (rss->p_remain < write_now) {
+ write_now = rss->p_remain;
+ }
- rss->p_remain -= write_now;
- written += write_now;
+ if (write_all(rss->fd, data, write_now) == -1) {
+ break;
+ }
- if (rss->p_remain == 0) {
- // move to the next block
- ++rss->p_block;
- if (rss->p_block < rss->tgt.count) {
- rss->p_remain = (rss->tgt.pos[rss->p_block * 2 + 1] -
- rss->tgt.pos[rss->p_block * 2]) * BLOCKSIZE;
+ data += write_now;
+ size -= write_now;
- off64_t offset = static_cast<off64_t>(rss->tgt.pos[rss->p_block*2]) * BLOCKSIZE;
- if (!discard_blocks(rss->fd, offset, rss->p_remain)) {
- break;
- }
+ rss->p_remain -= write_now;
+ written += write_now;
- if (!check_lseek(rss->fd, offset, SEEK_SET)) {
- break;
- }
+ if (rss->p_remain == 0) {
+ // Move to the next block.
+ ++rss->p_block;
+ if (rss->p_block < rss->tgt.count) {
+ rss->p_remain =
+ (rss->tgt.pos[rss->p_block * 2 + 1] - rss->tgt.pos[rss->p_block * 2]) * BLOCKSIZE;
+
+ off64_t offset = static_cast<off64_t>(rss->tgt.pos[rss->p_block * 2]) * BLOCKSIZE;
+ if (!discard_blocks(rss->fd, offset, rss->p_remain)) {
+ break;
+ }
- } else {
- // we can't write any more; return how many bytes have
- // been written so far.
- break;
- }
+ if (!check_lseek(rss->fd, offset, SEEK_SET)) {
+ break;
}
+
+ } else {
+ // We can't write any more; return how many bytes have been written so far.
+ break;
+ }
}
+ }
- return written;
+ return written;
}
// All of the data for all the 'new' transfers is contained in one
@@ -338,7 +335,7 @@ static bool receive_new_data(const uint8_t* data, size_t size, void* cookie) {
// At this point nti->rss is set, and we own it. The main
// thread is waiting for it to disappear from nti.
- ssize_t written = RangeSinkWrite(data, size, nti->rss);
+ size_t written = RangeSinkWrite(data, size, nti->rss);
data += written;
size -= written;
@@ -356,7 +353,7 @@ static bool receive_new_data(const uint8_t* data, size_t size, void* cookie) {
}
static void* unzip_new_data(void* cookie) {
- NewThreadInfo* nti = (NewThreadInfo*) cookie;
+ NewThreadInfo* nti = static_cast<NewThreadInfo*>(cookie);
ProcessZipEntryContents(nti->za, &nti->entry, receive_new_data, nti);
return nullptr;
}
@@ -429,46 +426,11 @@ struct CommandParameters {
uint8_t* patch_start;
};
-// Do a source/target load for move/bsdiff/imgdiff in version 1.
-// We expect to parse the remainder of the parameter tokens as:
-//
-// <src_range> <tgt_range>
-//
-// The source range is loaded into the provided buffer, reallocating
-// it to make it larger if necessary.
-
-static int LoadSrcTgtVersion1(CommandParameters& params, RangeSet& tgt, size_t& src_blocks,
- std::vector<uint8_t>& buffer, int fd) {
-
- if (params.cpos + 1 >= params.tokens.size()) {
- LOG(ERROR) << "invalid parameters";
- return -1;
- }
-
- // <src_range>
- RangeSet src = parse_range(params.tokens[params.cpos++]);
-
- // <tgt_range>
- tgt = parse_range(params.tokens[params.cpos++]);
-
- allocate(src.size * BLOCKSIZE, buffer);
- int rc = ReadBlocks(src, buffer, fd);
- src_blocks = src.size;
-
- 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");
@@ -651,8 +613,8 @@ static void DeleteStash(const std::string& base) {
}
}
-static int LoadStash(CommandParameters& params, const std::string& base, const std::string& id,
- bool verify, size_t* blocks, std::vector<uint8_t>& buffer, bool printnoent) {
+static int LoadStash(CommandParameters& params, const std::string& id, bool verify, size_t* blocks,
+ std::vector<uint8_t>& buffer, bool printnoent) {
// In verify mode, if source range_set was saved for the given hash,
// check contents in the source blocks first. If the check fails,
// search for the stashed files on /cache as usual.
@@ -674,17 +636,13 @@ static int LoadStash(CommandParameters& params, const std::string& base, const s
}
}
- if (base.empty()) {
- return -1;
- }
-
size_t blockcount = 0;
if (!blocks) {
blocks = &blockcount;
}
- std::string fn = GetStashFileName(base, id, "");
+ std::string fn = GetStashFileName(params.stashbase, id, "");
struct stat sb;
int res = stat(fn.c_str(), &sb);
@@ -735,7 +693,7 @@ static int LoadStash(CommandParameters& params, const std::string& base, const s
}
static int WriteStash(const std::string& base, const std::string& id, int blocks,
- std::vector<uint8_t>& buffer, bool checkspace, bool *exists) {
+ std::vector<uint8_t>& buffer, bool checkspace, bool* exists) {
if (base.empty()) {
return -1;
}
@@ -895,52 +853,6 @@ static int CreateStash(State* state, size_t maxblocks, const std::string& blockd
return 0; // Using existing directory
}
-static int SaveStash(CommandParameters& params, const std::string& base,
- std::vector<uint8_t>& buffer, int fd, bool usehash) {
-
- // <stash_id> <src_range>
- if (params.cpos + 1 >= params.tokens.size()) {
- LOG(ERROR) << "missing id and/or src range fields in stash command";
- return -1;
- }
- const std::string& id = params.tokens[params.cpos++];
-
- size_t blocks = 0;
- if (usehash && LoadStash(params, base, id, true, &blocks, buffer, false) == 0) {
- // Stash file already exists and has expected contents. Do not
- // read from source again, as the source may have been already
- // overwritten during a previous attempt.
- return 0;
- }
-
- RangeSet src = parse_range(params.tokens[params.cpos++]);
-
- allocate(src.size * BLOCKSIZE, buffer);
- if (ReadBlocks(src, buffer, fd) == -1) {
- 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
- // data later, this is an unrecoverable error. However, the command
- // that uses the data may have already completed previously, so the
- // possible failure will occur during source block verification.
- LOG(ERROR) << "failed to load source blocks for stash " << id;
- return 0;
- }
-
- // In verify mode, we don't need to stash any blocks.
- if (!params.canwrite && usehash) {
- return 0;
- }
-
- LOG(INFO) << "stashing " << blocks << " blocks to " << id;
- params.stashed += blocks;
- return WriteStash(base, id, blocks, buffer, false, nullptr);
-}
-
static int FreeStash(const std::string& base, const std::string& id) {
if (base.empty() || id.empty()) {
return -1;
@@ -968,265 +880,294 @@ static void MoveRange(std::vector<uint8_t>& dest, const RangeSet& locs,
}
}
-// Do a source/target load for move/bsdiff/imgdiff in version 2.
-// We expect to parse the remainder of the parameter tokens as one of:
-//
-// <tgt_range> <src_block_count> <src_range>
-// (loads data from source image only)
-//
-// <tgt_range> <src_block_count> - <[stash_id:stash_range] ...>
-// (loads data from stashes only)
-//
-// <tgt_range> <src_block_count> <src_range> <src_loc> <[stash_id:stash_range] ...>
-// (loads data from both source image and stashes)
-//
-// On return, buffer is filled with the loaded source data (rearranged
-// and combined with stashed data as necessary). buffer may be
-// reallocated if needed to accommodate the source data. *tgt is the
-// target RangeSet. Any stashes required are loaded using LoadStash.
-
-static int LoadSrcTgtVersion2(CommandParameters& params, RangeSet& tgt, size_t& src_blocks,
- std::vector<uint8_t>& buffer, int fd, const std::string& stashbase, bool* overlap) {
-
- // At least it needs to provide three parameters: <tgt_range>,
- // <src_block_count> and "-"/<src_range>.
- if (params.cpos + 2 >= params.tokens.size()) {
- LOG(ERROR) << "invalid parameters";
- return -1;
- }
-
- // <tgt_range>
- tgt = parse_range(params.tokens[params.cpos++]);
-
- // <src_block_count>
- const std::string& token = params.tokens[params.cpos++];
- if (!android::base::ParseUint(token.c_str(), &src_blocks)) {
- LOG(ERROR) << "invalid src_block_count \"" << token << "\"";
- return -1;
- }
-
- allocate(src_blocks * BLOCKSIZE, buffer);
-
- // "-" or <src_range> [<src_loc>]
- if (params.tokens[params.cpos] == "-") {
- // no source ranges, only stashes
- params.cpos++;
- } else {
- RangeSet src = parse_range(params.tokens[params.cpos++]);
- int res = ReadBlocks(src, buffer, fd);
-
- if (overlap) {
- *overlap = range_overlaps(src, tgt);
- }
+/**
+ * We expect to parse the remainder of the parameter tokens as one of:
+ *
+ * <src_block_count> <src_range>
+ * (loads data from source image only)
+ *
+ * <src_block_count> - <[stash_id:stash_range] ...>
+ * (loads data from stashes only)
+ *
+ * <src_block_count> <src_range> <src_loc> <[stash_id:stash_range] ...>
+ * (loads data from both source image and stashes)
+ *
+ * On return, params.buffer is filled with the loaded source data (rearranged and combined with
+ * stashed data as necessary). buffer may be reallocated if needed to accommodate the source data.
+ * tgt is the target RangeSet for detecting overlaps. Any stashes required are loaded using
+ * LoadStash.
+ */
+static int LoadSourceBlocks(CommandParameters& params, const RangeSet& tgt, size_t* src_blocks,
+ bool* overlap) {
+ CHECK(src_blocks != nullptr);
+ CHECK(overlap != nullptr);
+
+ // <src_block_count>
+ const std::string& token = params.tokens[params.cpos++];
+ if (!android::base::ParseUint(token, src_blocks)) {
+ LOG(ERROR) << "invalid src_block_count \"" << token << "\"";
+ return -1;
+ }
- if (res == -1) {
- return -1;
- }
+ allocate(*src_blocks * BLOCKSIZE, params.buffer);
- if (params.cpos >= params.tokens.size()) {
- // no stashes, only source range
- return 0;
- }
+ // "-" or <src_range> [<src_loc>]
+ if (params.tokens[params.cpos] == "-") {
+ // no source ranges, only stashes
+ params.cpos++;
+ } else {
+ RangeSet src = parse_range(params.tokens[params.cpos++]);
+ *overlap = range_overlaps(src, tgt);
- RangeSet locs = parse_range(params.tokens[params.cpos++]);
- MoveRange(buffer, locs, buffer);
+ if (ReadBlocks(src, params.buffer, params.fd) == -1) {
+ return -1;
}
- // <[stash_id:stash_range]>
- while (params.cpos < params.tokens.size()) {
- // Each word is a an index into the stash table, a colon, and
- // then a rangeset describing where in the source block that
- // stashed data should go.
- std::vector<std::string> tokens = android::base::Split(params.tokens[params.cpos++], ":");
- if (tokens.size() != 2) {
- LOG(ERROR) << "invalid parameter";
- return -1;
- }
-
- std::vector<uint8_t> stash;
- int res = LoadStash(params, stashbase, tokens[0], false, nullptr, stash, true);
+ if (params.cpos >= params.tokens.size()) {
+ // no stashes, only source range
+ return 0;
+ }
- if (res == -1) {
- // These source blocks will fail verification if used later, but we
- // will let the caller decide if this is a fatal failure
- LOG(ERROR) << "failed to load stash " << tokens[0];
- continue;
- }
+ RangeSet locs = parse_range(params.tokens[params.cpos++]);
+ MoveRange(params.buffer, locs, params.buffer);
+ }
- RangeSet locs = parse_range(tokens[1]);
+ // <[stash_id:stash_range]>
+ while (params.cpos < params.tokens.size()) {
+ // Each word is a an index into the stash table, a colon, and then a RangeSet describing where
+ // in the source block that stashed data should go.
+ std::vector<std::string> tokens = android::base::Split(params.tokens[params.cpos++], ":");
+ if (tokens.size() != 2) {
+ LOG(ERROR) << "invalid parameter";
+ return -1;
+ }
- MoveRange(buffer, locs, stash);
+ std::vector<uint8_t> stash;
+ if (LoadStash(params, tokens[0], false, nullptr, stash, true) == -1) {
+ // These source blocks will fail verification if used later, but we
+ // will let the caller decide if this is a fatal failure
+ LOG(ERROR) << "failed to load stash " << tokens[0];
+ continue;
}
- return 0;
+ RangeSet locs = parse_range(tokens[1]);
+ MoveRange(params.buffer, locs, stash);
+ }
+
+ return 0;
}
-// Do a source/target load for move/bsdiff/imgdiff in version 3.
-//
-// Parameters are the same as for LoadSrcTgtVersion2, except for 'onehash', which
-// tells the function whether to expect separate source and targe block hashes, or
-// if they are both the same and only one hash should be expected, and
-// 'isunresumable', which receives a non-zero value if block verification fails in
-// a way that the update cannot be resumed anymore.
-//
-// If the function is unable to load the necessary blocks or their contents don't
-// match the hashes, the return value is -1 and the command should be aborted.
-//
-// If the return value is 1, the command has already been completed according to
-// the contents of the target blocks, and should not be performed again.
-//
-// If the return value is 0, source blocks have expected content and the command
-// can be performed.
+/**
+ * Do a source/target load for move/bsdiff/imgdiff in version 3.
+ *
+ * We expect to parse the remainder of the parameter tokens as one of:
+ *
+ * <tgt_range> <src_block_count> <src_range>
+ * (loads data from source image only)
+ *
+ * <tgt_range> <src_block_count> - <[stash_id:stash_range] ...>
+ * (loads data from stashes only)
+ *
+ * <tgt_range> <src_block_count> <src_range> <src_loc> <[stash_id:stash_range] ...>
+ * (loads data from both source image and stashes)
+ *
+ * 'onehash' tells whether to expect separate source and targe block hashes, or if they are both the
+ * same and only one hash should be expected. params.isunresumable will be set to true if block
+ * verification fails in a way that the update cannot be resumed anymore.
+ *
+ * If the function is unable to load the necessary blocks or their contents don't match the hashes,
+ * the return value is -1 and the command should be aborted.
+ *
+ * If the return value is 1, the command has already been completed according to the contents of the
+ * target blocks, and should not be performed again.
+ *
+ * If the return value is 0, source blocks have expected content and the command can be performed.
+ */
+static int LoadSrcTgtVersion3(CommandParameters& params, RangeSet& tgt, size_t* src_blocks,
+ bool onehash, bool* overlap) {
+ CHECK(src_blocks != nullptr);
+ CHECK(overlap != nullptr);
-static int LoadSrcTgtVersion3(CommandParameters& params, RangeSet& tgt, size_t& src_blocks,
- bool onehash, bool& overlap) {
+ if (params.cpos >= params.tokens.size()) {
+ LOG(ERROR) << "missing source hash";
+ return -1;
+ }
+ std::string srchash = params.tokens[params.cpos++];
+ std::string tgthash;
+
+ if (onehash) {
+ tgthash = srchash;
+ } else {
if (params.cpos >= params.tokens.size()) {
- LOG(ERROR) << "missing source hash";
- return -1;
+ LOG(ERROR) << "missing target hash";
+ return -1;
}
+ tgthash = params.tokens[params.cpos++];
+ }
- std::string srchash = params.tokens[params.cpos++];
- std::string tgthash;
+ // At least it needs to provide three parameters: <tgt_range>, <src_block_count> and
+ // "-"/<src_range>.
+ if (params.cpos + 2 >= params.tokens.size()) {
+ LOG(ERROR) << "invalid parameters";
+ return -1;
+ }
- if (onehash) {
- tgthash = srchash;
- } else {
- if (params.cpos >= params.tokens.size()) {
- LOG(ERROR) << "missing target hash";
- return -1;
- }
- tgthash = params.tokens[params.cpos++];
- }
+ // <tgt_range>
+ tgt = parse_range(params.tokens[params.cpos++]);
- if (LoadSrcTgtVersion2(params, tgt, src_blocks, params.buffer, params.fd,
- params.stashbase, &overlap) == -1) {
- return -1;
- }
+ std::vector<uint8_t> tgtbuffer(tgt.size * BLOCKSIZE);
+ if (ReadBlocks(tgt, tgtbuffer, params.fd) == -1) {
+ return -1;
+ }
+
+ // Return now if target blocks already have expected content.
+ if (VerifyBlocks(tgthash, tgtbuffer, tgt.size, false) == 0) {
+ return 1;
+ }
- std::vector<uint8_t> tgtbuffer(tgt.size * BLOCKSIZE);
+ // Load source blocks.
+ if (LoadSourceBlocks(params, tgt, src_blocks, overlap) == -1) {
+ return -1;
+ }
- if (ReadBlocks(tgt, tgtbuffer, params.fd) == -1) {
+ if (VerifyBlocks(srchash, params.buffer, *src_blocks, true) == 0) {
+ // If source and target blocks overlap, stash the source blocks so we can
+ // resume from possible write errors. In verify mode, we can skip stashing
+ // because the source blocks won't be overwritten.
+ if (*overlap && params.canwrite) {
+ LOG(INFO) << "stashing " << *src_blocks << " overlapping blocks to " << srchash;
+
+ bool stash_exists = false;
+ if (WriteStash(params.stashbase, srchash, *src_blocks, params.buffer, true,
+ &stash_exists) != 0) {
+ LOG(ERROR) << "failed to stash overlapping source blocks";
return -1;
- }
+ }
- if (VerifyBlocks(tgthash, tgtbuffer, tgt.size, false) == 0) {
- // Target blocks already have expected content, command should be skipped
- return 1;
+ params.stashed += *src_blocks;
+ // Can be deleted when the write has completed.
+ if (!stash_exists) {
+ params.freestash = srchash;
+ }
}
- if (VerifyBlocks(srchash, params.buffer, src_blocks, true) == 0) {
- // If source and target blocks overlap, stash the source blocks so we can
- // resume from possible write errors. In verify mode, we can skip stashing
- // because the source blocks won't be overwritten.
- if (overlap && params.canwrite) {
- LOG(INFO) << "stashing " << src_blocks << " overlapping blocks to " << srchash;
-
- bool stash_exists = false;
- if (WriteStash(params.stashbase, srchash, src_blocks, params.buffer, true,
- &stash_exists) != 0) {
- LOG(ERROR) << "failed to stash overlapping source blocks";
- return -1;
- }
+ // Source blocks have expected content, command can proceed.
+ return 0;
+ }
- params.stashed += src_blocks;
- // Can be deleted when the write has completed
- if (!stash_exists) {
- params.freestash = srchash;
- }
- }
+ if (*overlap && LoadStash(params, srchash, true, nullptr, params.buffer, true) == 0) {
+ // Overlapping source blocks were previously stashed, command can proceed. We are recovering
+ // from an interrupted command, so we don't know if the stash can safely be deleted after this
+ // command.
+ return 0;
+ }
- // Source blocks have expected content, command can proceed
- return 0;
- }
+ // Valid source data not available, update cannot be resumed.
+ LOG(ERROR) << "partition has unexpected contents";
+ PrintHashForCorruptedSourceBlocks(params, params.buffer);
- if (overlap && LoadStash(params, params.stashbase, srchash, true, nullptr, params.buffer,
- true) == 0) {
- // Overlapping source blocks were previously stashed, command can proceed.
- // We are recovering from an interrupted command, so we don't know if the
- // stash can safely be deleted after this command.
- return 0;
- }
+ params.isunresumable = true;
- // Valid source data not available, update cannot be resumed
- LOG(ERROR) << "partition has unexpected contents";
- PrintHashForCorruptedSourceBlocks(params, params.buffer);
+ return -1;
+}
- params.isunresumable = true;
+static int PerformCommandMove(CommandParameters& params) {
+ size_t blocks = 0;
+ bool overlap = false;
+ RangeSet tgt;
+ int status = LoadSrcTgtVersion3(params, tgt, &blocks, true, &overlap);
+ if (status == -1) {
+ LOG(ERROR) << "failed to read blocks for move";
return -1;
-}
+ }
-static int PerformCommandMove(CommandParameters& params) {
- size_t blocks = 0;
- bool overlap = false;
- int status = 0;
- RangeSet tgt;
+ if (status == 0) {
+ params.foundwrites = true;
+ } else if (params.foundwrites) {
+ LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
+ }
- if (params.version == 1) {
- status = LoadSrcTgtVersion1(params, tgt, blocks, params.buffer, params.fd);
- } else if (params.version == 2) {
- status = LoadSrcTgtVersion2(params, tgt, blocks, params.buffer, params.fd,
- params.stashbase, nullptr);
- } else if (params.version >= 3) {
- status = LoadSrcTgtVersion3(params, tgt, blocks, true, overlap);
- }
+ if (params.canwrite) {
+ if (status == 0) {
+ LOG(INFO) << " moving " << blocks << " blocks";
- if (status == -1) {
- LOG(ERROR) << "failed to read blocks for move";
+ if (WriteBlocks(tgt, params.buffer, params.fd) == -1) {
return -1;
+ }
+ } else {
+ LOG(INFO) << "skipping " << blocks << " already moved blocks";
}
+ }
- if (status == 0) {
- params.foundwrites = true;
- } else if (params.foundwrites) {
- LOG(WARNING) << "warning: commands executed out of order [" << params.cmdname << "]";
- }
+ if (!params.freestash.empty()) {
+ FreeStash(params.stashbase, params.freestash);
+ params.freestash.clear();
+ }
- if (params.canwrite) {
- if (status == 0) {
- LOG(INFO) << " moving " << blocks << " blocks";
+ params.written += tgt.size;
- if (WriteBlocks(tgt, params.buffer, params.fd) == -1) {
- return -1;
- }
- } else {
- LOG(INFO) << "skipping " << blocks << " already moved blocks";
- }
+ return 0;
+}
- }
+static int PerformCommandStash(CommandParameters& params) {
+ // <stash_id> <src_range>
+ if (params.cpos + 1 >= params.tokens.size()) {
+ LOG(ERROR) << "missing id and/or src range fields in stash command";
+ return -1;
+ }
- if (!params.freestash.empty()) {
- FreeStash(params.stashbase, params.freestash);
- params.freestash.clear();
- }
+ const std::string& id = params.tokens[params.cpos++];
+ size_t blocks = 0;
+ if (LoadStash(params, id, true, &blocks, params.buffer, false) == 0) {
+ // Stash file already exists and has expected contents. Do not read from source again, as the
+ // source may have been already overwritten during a previous attempt.
+ return 0;
+ }
- params.written += tgt.size;
+ RangeSet src = parse_range(params.tokens[params.cpos++]);
+ allocate(src.size * BLOCKSIZE, params.buffer);
+ if (ReadBlocks(src, params.buffer, params.fd) == -1) {
+ return -1;
+ }
+ blocks = src.size;
+ stash_map[id] = src;
+
+ if (VerifyBlocks(id, params.buffer, blocks, true) != 0) {
+ // Source blocks have unexpected contents. If we actually need this data later, this is an
+ // unrecoverable error. However, the command that uses the data may have already completed
+ // previously, so the possible failure will occur during source block verification.
+ LOG(ERROR) << "failed to load source blocks for stash " << id;
return 0;
-}
+ }
-static int PerformCommandStash(CommandParameters& params) {
- return SaveStash(params, params.stashbase, params.buffer, params.fd,
- (params.version >= 3));
+ // In verify mode, we don't need to stash any blocks.
+ if (!params.canwrite) {
+ return 0;
+ }
+
+ LOG(INFO) << "stashing " << blocks << " blocks to " << id;
+ params.stashed += blocks;
+ return WriteStash(params.stashbase, id, blocks, params.buffer, false, nullptr);
}
static int PerformCommandFree(CommandParameters& params) {
- // <stash_id>
- if (params.cpos >= params.tokens.size()) {
- LOG(ERROR) << "missing stash id in free command";
- return -1;
- }
-
- const std::string& id = params.tokens[params.cpos++];
+ // <stash_id>
+ if (params.cpos >= params.tokens.size()) {
+ LOG(ERROR) << "missing stash id in free command";
+ return -1;
+ }
- stash_map.erase(id);
+ const std::string& id = params.tokens[params.cpos++];
+ stash_map.erase(id);
- if (params.createdstash || params.canwrite) {
- return FreeStash(params.stashbase, id);
- }
+ if (params.createdstash || params.canwrite) {
+ return FreeStash(params.stashbase, id);
+ }
- return 0;
+ return 0;
}
static int PerformCommandZero(CommandParameters& params) {
@@ -1315,100 +1256,95 @@ static int PerformCommandNew(CommandParameters& params) {
}
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++].c_str(), &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++].c_str(), &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 = 0;
- if (params.version == 1) {
- status = LoadSrcTgtVersion1(params, tgt, blocks, params.buffer, params.fd);
- } else if (params.version == 2) {
- status = LoadSrcTgtVersion2(params, tgt, blocks, params.buffer, params.fd,
- params.stashbase, nullptr);
- } else if (params.version >= 3) {
- 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 << "]";
- }
-
- 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;
- }
-
- if (!check_lseek(params.fd, offset, SEEK_SET)) {
- return -1;
- }
+ 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;
+ }
- 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;
- }
- }
+ if (!check_lseek(params.fd, offset, SEEK_SET)) {
+ 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;
+ }
+ }
- if (!params.freestash.empty()) {
- FreeStash(params.stashbase, params.freestash);
- params.freestash.clear();
+ // 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 << "]";
}
+ }
- params.written += tgt.size;
+ if (!params.freestash.empty()) {
+ FreeStash(params.stashbase, params.freestash);
+ params.freestash.clear();
+ }
- return 0;
+ params.written += tgt.size;
+
+ return 0;
}
static int PerformCommandErase(CommandParameters& params) {
@@ -1471,301 +1407,281 @@ struct Command {
static Value* PerformBlockImageUpdate(const char* name, State* state,
const std::vector<std::unique_ptr<Expr>>& argv,
const Command* commands, size_t cmdcount, bool dryrun) {
- CommandParameters params = {};
- params.canwrite = !dryrun;
+ CommandParameters params = {};
+ params.canwrite = !dryrun;
- LOG(INFO) << "performing " << (dryrun ? "verification" : "update");
- if (state->is_retry) {
- is_retry = true;
- LOG(INFO) << "This update is a retry.";
- }
- if (argv.size() != 4) {
- ErrorAbort(state, kArgsParsingFailure, "block_image_update expects 4 arguments, got %zu",
- argv.size());
- return StringValue("");
- }
+ LOG(INFO) << "performing " << (dryrun ? "verification" : "update");
+ if (state->is_retry) {
+ is_retry = true;
+ LOG(INFO) << "This update is a retry.";
+ }
+ if (argv.size() != 4) {
+ ErrorAbort(state, kArgsParsingFailure, "block_image_update expects 4 arguments, got %zu",
+ argv.size());
+ return StringValue("");
+ }
- std::vector<std::unique_ptr<Value>> args;
- if (!ReadValueArgs(state, argv, &args)) {
- return nullptr;
- }
+ std::vector<std::unique_ptr<Value>> args;
+ if (!ReadValueArgs(state, argv, &args)) {
+ return nullptr;
+ }
- const Value* blockdev_filename = args[0].get();
- const Value* transfer_list_value = args[1].get();
- const Value* new_data_fn = args[2].get();
- const Value* patch_data_fn = args[3].get();
+ const Value* blockdev_filename = args[0].get();
+ const Value* transfer_list_value = args[1].get();
+ const Value* new_data_fn = args[2].get();
+ const Value* patch_data_fn = args[3].get();
- if (blockdev_filename->type != VAL_STRING) {
- ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string",
- name);
- return StringValue("");
- }
- if (transfer_list_value->type != VAL_BLOB) {
- ErrorAbort(state, kArgsParsingFailure, "transfer_list argument to %s must be blob", name);
- return StringValue("");
- }
- if (new_data_fn->type != VAL_STRING) {
- ErrorAbort(state, kArgsParsingFailure, "new_data_fn argument to %s must be string", name);
- return StringValue("");
- }
- if (patch_data_fn->type != VAL_STRING) {
- ErrorAbort(state, kArgsParsingFailure, "patch_data_fn argument to %s must be string",
- name);
- return StringValue("");
- }
+ if (blockdev_filename->type != VAL_STRING) {
+ ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string", name);
+ return StringValue("");
+ }
+ if (transfer_list_value->type != VAL_BLOB) {
+ ErrorAbort(state, kArgsParsingFailure, "transfer_list argument to %s must be blob", name);
+ return StringValue("");
+ }
+ if (new_data_fn->type != VAL_STRING) {
+ ErrorAbort(state, kArgsParsingFailure, "new_data_fn argument to %s must be string", name);
+ return StringValue("");
+ }
+ if (patch_data_fn->type != VAL_STRING) {
+ ErrorAbort(state, kArgsParsingFailure, "patch_data_fn argument to %s must be string", name);
+ return StringValue("");
+ }
- UpdaterInfo* ui = static_cast<UpdaterInfo*>(state->cookie);
- if (ui == nullptr) {
- return StringValue("");
- }
+ UpdaterInfo* ui = static_cast<UpdaterInfo*>(state->cookie);
+ if (ui == nullptr) {
+ return StringValue("");
+ }
- FILE* cmd_pipe = ui->cmd_pipe;
- ZipArchiveHandle za = ui->package_zip;
+ FILE* cmd_pipe = ui->cmd_pipe;
+ ZipArchiveHandle za = ui->package_zip;
- if (cmd_pipe == nullptr || za == nullptr) {
- return StringValue("");
- }
+ if (cmd_pipe == nullptr || za == nullptr) {
+ return StringValue("");
+ }
- ZipString path_data(patch_data_fn->data.c_str());
- ZipEntry patch_entry;
- if (FindEntry(za, path_data, &patch_entry) != 0) {
- LOG(ERROR) << name << "(): no file \"" << patch_data_fn->data << "\" in package";
- return StringValue("");
- }
+ ZipString path_data(patch_data_fn->data.c_str());
+ ZipEntry patch_entry;
+ if (FindEntry(za, path_data, &patch_entry) != 0) {
+ LOG(ERROR) << name << "(): no file \"" << patch_data_fn->data << "\" in package";
+ return StringValue("");
+ }
- params.patch_start = ui->package_zip_addr + patch_entry.offset;
- ZipString new_data(new_data_fn->data.c_str());
- ZipEntry new_entry;
- if (FindEntry(za, new_data, &new_entry) != 0) {
- LOG(ERROR) << name << "(): no file \"" << new_data_fn->data << "\" in package";
- return StringValue("");
- }
+ params.patch_start = ui->package_zip_addr + patch_entry.offset;
+ ZipString new_data(new_data_fn->data.c_str());
+ ZipEntry new_entry;
+ if (FindEntry(za, new_data, &new_entry) != 0) {
+ LOG(ERROR) << name << "(): no file \"" << new_data_fn->data << "\" in package";
+ return StringValue("");
+ }
- params.fd.reset(TEMP_FAILURE_RETRY(ota_open(blockdev_filename->data.c_str(), O_RDWR)));
- if (params.fd == -1) {
- PLOG(ERROR) << "open \"" << blockdev_filename->data << "\" failed";
- return StringValue("");
- }
+ params.fd.reset(TEMP_FAILURE_RETRY(ota_open(blockdev_filename->data.c_str(), O_RDWR)));
+ if (params.fd == -1) {
+ PLOG(ERROR) << "open \"" << blockdev_filename->data << "\" failed";
+ return StringValue("");
+ }
- if (params.canwrite) {
- params.nti.za = za;
- params.nti.entry = new_entry;
-
- pthread_mutex_init(&params.nti.mu, nullptr);
- pthread_cond_init(&params.nti.cv, nullptr);
- pthread_attr_t attr;
- pthread_attr_init(&attr);
- pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
-
- int error = pthread_create(&params.thread, &attr, unzip_new_data, &params.nti);
- if (error != 0) {
- PLOG(ERROR) << "pthread_create failed";
- return StringValue("");
- }
- }
+ if (params.canwrite) {
+ params.nti.za = za;
+ params.nti.entry = new_entry;
- 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",
- lines.size());
- return StringValue("");
- }
+ pthread_mutex_init(&params.nti.mu, nullptr);
+ pthread_cond_init(&params.nti.cv, nullptr);
+ pthread_attr_t attr;
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
- // First line in transfer list is the version number
- if (!android::base::ParseInt(lines[0], &params.version, 1, 4)) {
- LOG(ERROR) << "unexpected transfer list version [" << lines[0] << "]";
- return StringValue("");
+ int error = pthread_create(&params.thread, &attr, unzip_new_data, &params.nti);
+ if (error != 0) {
+ PLOG(ERROR) << "pthread_create failed";
+ return StringValue("");
}
+ }
- LOG(INFO) << "blockimg version is " << params.version;
-
- // 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());
- return StringValue("");
- }
+ 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",
+ lines.size());
+ return StringValue("");
+ }
- if (total_blocks == 0) {
- return StringValue("t");
- }
+ // First line in transfer list is the version number.
+ if (!android::base::ParseInt(lines[0], &params.version, 3, 4)) {
+ LOG(ERROR) << "unexpected transfer list version [" << lines[0] << "]";
+ return StringValue("");
+ }
- size_t start = 2;
- if (params.version >= 2) {
- if (lines.size() < 4) {
- ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zu]\n",
- lines.size());
- return StringValue("");
- }
+ LOG(INFO) << "blockimg version is " << params.version;
- // Third line is how many stash entries are needed simultaneously
- LOG(INFO) << "maximum stash entries " << lines[2];
+ // 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());
+ return StringValue("");
+ }
- // 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",
- lines[3].c_str());
- return StringValue("");
- }
+ if (total_blocks == 0) {
+ return StringValue("t");
+ }
- int res = CreateStash(state, stash_max_blocks, blockdev_filename->data, params.stashbase);
- if (res == -1) {
- return StringValue("");
- }
+ size_t start = 2;
+ if (lines.size() < 4) {
+ ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zu]\n",
+ lines.size());
+ return StringValue("");
+ }
- params.createdstash = res;
+ // Third line is how many stash entries are needed simultaneously.
+ LOG(INFO) << "maximum stash entries " << lines[2];
- start += 2;
- }
+ // 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",
+ lines[3].c_str());
+ return StringValue("");
+ }
- // Build a map of the available commands
- std::unordered_map<std::string, const Command*> cmd_map;
- for (size_t i = 0; i < cmdcount; ++i) {
- if (cmd_map.find(commands[i].name) != cmd_map.end()) {
- LOG(ERROR) << "Error: command [" << commands[i].name
- << "] already exists in the cmd map.";
- return StringValue(strdup(""));
- }
- cmd_map[commands[i].name] = &commands[i];
- }
+ int res = CreateStash(state, stash_max_blocks, blockdev_filename->data, params.stashbase);
+ if (res == -1) {
+ return StringValue("");
+ }
- int rc = -1;
+ params.createdstash = res;
- // Subsequent lines are all individual transfer commands
- for (auto it = lines.cbegin() + start; it != lines.cend(); it++) {
- const std::string& line(*it);
- if (line.empty()) continue;
+ start += 2;
- params.tokens = android::base::Split(line, " ");
- params.cpos = 0;
- params.cmdname = params.tokens[params.cpos++].c_str();
- params.cmdline = line.c_str();
+ // Build a map of the available commands
+ std::unordered_map<std::string, const Command*> cmd_map;
+ for (size_t i = 0; i < cmdcount; ++i) {
+ if (cmd_map.find(commands[i].name) != cmd_map.end()) {
+ LOG(ERROR) << "Error: command [" << commands[i].name << "] already exists in the cmd map.";
+ return StringValue(strdup(""));
+ }
+ cmd_map[commands[i].name] = &commands[i];
+ }
- if (cmd_map.find(params.cmdname) == cmd_map.end()) {
- LOG(ERROR) << "unexpected command [" << params.cmdname << "]";
- goto pbiudone;
- }
+ int rc = -1;
- const Command* cmd = cmd_map[params.cmdname];
+ // Subsequent lines are all individual transfer commands
+ for (auto it = lines.cbegin() + start; it != lines.cend(); it++) {
+ const std::string& line(*it);
+ if (line.empty()) continue;
- if (cmd->f != nullptr && cmd->f(params) == -1) {
- LOG(ERROR) << "failed to execute command [" << line << "]";
- goto pbiudone;
- }
+ params.tokens = android::base::Split(line, " ");
+ params.cpos = 0;
+ params.cmdname = params.tokens[params.cpos++].c_str();
+ params.cmdline = line.c_str();
- if (params.canwrite) {
- if (ota_fsync(params.fd) == -1) {
- failure_type = kFsyncFailure;
- PLOG(ERROR) << "fsync failed";
- goto pbiudone;
- }
- fprintf(cmd_pipe, "set_progress %.4f\n",
- static_cast<double>(params.written) / total_blocks);
- fflush(cmd_pipe);
- }
+ if (cmd_map.find(params.cmdname) == cmd_map.end()) {
+ LOG(ERROR) << "unexpected command [" << params.cmdname << "]";
+ goto pbiudone;
}
- if (params.canwrite) {
- pthread_join(params.thread, nullptr);
-
- 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);
- }
- // Delete stash only after successfully completing the update, as it
- // may contain blocks needed to complete the update later.
- DeleteStash(params.stashbase);
- } else {
- LOG(INFO) << "verified partition contents; update may be resumed";
- }
+ const Command* cmd = cmd_map[params.cmdname];
- rc = 0;
+ if (cmd->f != nullptr && cmd->f(params) == -1) {
+ LOG(ERROR) << "failed to execute command [" << line << "]";
+ goto pbiudone;
+ }
-pbiudone:
- if (ota_fsync(params.fd) == -1) {
+ if (params.canwrite) {
+ if (ota_fsync(params.fd) == -1) {
failure_type = kFsyncFailure;
PLOG(ERROR) << "fsync failed";
+ goto pbiudone;
+ }
+ fprintf(cmd_pipe, "set_progress %.4f\n", static_cast<double>(params.written) / total_blocks);
+ fflush(cmd_pipe);
}
- // params.fd will be automatically closed because it's a unique_fd.
+ }
- // 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)) {
- DeleteStash(params.stashbase);
- }
+ if (params.canwrite) {
+ pthread_join(params.thread, nullptr);
- if (failure_type != kNoCause && state->cause_code == kNoCause) {
- state->cause_code = failure_type;
+ 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);
}
+ // Delete stash only after successfully completing the update, as it may contain blocks needed
+ // to complete the update later.
+ DeleteStash(params.stashbase);
+ } else {
+ LOG(INFO) << "verified partition contents; update may be resumed";
+ }
- return StringValue(rc == 0 ? "t" : "");
-}
+ rc = 0;
-// The transfer list is a text file containing commands to
-// transfer data from one place to another on the target
-// partition. We parse it and execute the commands in order:
-//
-// zero [rangeset]
-// - fill the indicated blocks with zeros
-//
-// new [rangeset]
-// - fill the blocks with data read from the new_data file
-//
-// erase [rangeset]
-// - mark the given blocks as empty
-//
-// move <...>
-// bsdiff <patchstart> <patchlen> <...>
-// imgdiff <patchstart> <patchlen> <...>
-// - read the source blocks, apply a patch (or not in the
-// case of move), write result to target blocks. bsdiff or
-// imgdiff specifies the type of patch; move means no patch
-// at all.
-//
-// The format of <...> differs between versions 1 and 2;
-// see the LoadSrcTgtVersion{1,2}() functions for a
-// description of what's expected.
-//
-// stash <stash_id> <src_range>
-// - (version 2+ only) load the given source range and stash
-// the data in the given slot of the stash table.
-//
-// free <stash_id>
-// - (version 3+ only) free the given stash data.
-//
-// The creator of the transfer list will guarantee that no block
-// is read (ie, used as the source for a patch or move) after it
-// has been written.
-//
-// In version 2, the creator will guarantee that a given stash is
-// loaded (with a stash command) before it's used in a
-// move/bsdiff/imgdiff command.
-//
-// Within one command the source and target ranges may overlap so
-// in general we need to read the entire source into memory before
-// writing anything to the target blocks.
-//
-// All the patch data is concatenated into one patch_data file in
-// the update package. It must be stored uncompressed because we
-// memory-map it in directly from the archive. (Since patches are
-// already compressed, we lose very little by not compressing
-// their concatenation.)
-//
-// In version 3, commands that read data from the partition (i.e.
-// move/bsdiff/imgdiff/stash) have one or more additional hashes
-// before the range parameters, which are used to check if the
-// command has already been completed and verify the integrity of
-// the source data.
+pbiudone:
+ if (ota_fsync(params.fd) == -1) {
+ failure_type = kFsyncFailure;
+ PLOG(ERROR) << "fsync failed";
+ }
+ // params.fd will be automatically closed because it's a unique_fd.
+
+ // 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)) {
+ DeleteStash(params.stashbase);
+ }
+ if (failure_type != kNoCause && state->cause_code == kNoCause) {
+ state->cause_code = failure_type;
+ }
+
+ return StringValue(rc == 0 ? "t" : "");
+}
+
+/**
+ * The transfer list is a text file containing commands to transfer data from one place to another
+ * on the target partition. We parse it and execute the commands in order:
+ *
+ * zero [rangeset]
+ * - Fill the indicated blocks with zeros.
+ *
+ * new [rangeset]
+ * - Fill the blocks with data read from the new_data file.
+ *
+ * erase [rangeset]
+ * - Mark the given blocks as empty.
+ *
+ * move <...>
+ * bsdiff <patchstart> <patchlen> <...>
+ * imgdiff <patchstart> <patchlen> <...>
+ * - Read the source blocks, apply a patch (or not in the case of move), write result to target
+ * blocks. bsdiff or imgdiff specifies the type of patch; move means no patch at all.
+ *
+ * See the comments in LoadSrcTgtVersion3() for a description of the <...> format.
+ *
+ * stash <stash_id> <src_range>
+ * - Load the given source range and stash the data in the given slot of the stash table.
+ *
+ * free <stash_id>
+ * - Free the given stash data.
+ *
+ * The creator of the transfer list will guarantee that no block is read (ie, used as the source for
+ * a patch or move) after it has been written.
+ *
+ * The creator will guarantee that a given stash is loaded (with a stash command) before it's used
+ * in a move/bsdiff/imgdiff command.
+ *
+ * Within one command the source and target ranges may overlap so in general we need to read the
+ * entire source into memory before writing anything to the target blocks.
+ *
+ * All the patch data is concatenated into one patch_data file in the update package. It must be
+ * stored uncompressed because we memory-map it in directly from the archive. (Since patches are
+ * already compressed, we lose very little by not compressing their concatenation.)
+ *
+ * Commands that read data from the partition (i.e. move/bsdiff/imgdiff/stash) have one or more
+ * additional hashes before the range parameters, which are used to check if the command has already
+ * been completed and verify the integrity of the source data.
+ */
Value* BlockImageVerifyFn(const char* name, State* state,
const std::vector<std::unique_ptr<Expr>>& argv) {
// Commands which are not tested are set to nullptr to skip them completely
@@ -1952,7 +1868,7 @@ Value* BlockImageRecoverFn(const char* name, State* state,
LOG(INFO) << filename->data << " image corrupted, attempting to recover...";
// When opened with O_RDWR, libfec rewrites corrupted blocks when they are read
- fec::io fh(filename->data.c_str(), O_RDWR);
+ fec::io fh(filename->data, O_RDWR);
if (!fh) {
ErrorAbort(state, kLibfecFailure, "fec_open \"%s\" failed: %s", filename->data.c_str(),
diff --git a/verifier.cpp b/verifier.cpp
index e9d540cdb..23142c120 100644
--- a/verifier.cpp
+++ b/verifier.cpp
@@ -370,7 +370,7 @@ std::unique_ptr<RSA, RSADeleter> parse_rsa_key(FILE* file, uint32_t exponent) {
}
struct BNDeleter {
- void operator()(BIGNUM* bn) {
+ void operator()(BIGNUM* bn) const {
BN_free(bn);
}
};
diff --git a/verifier.h b/verifier.h
index 6bee74947..6fa8f2b0a 100644
--- a/verifier.h
+++ b/verifier.h
@@ -26,13 +26,13 @@
#include <openssl/sha.h>
struct RSADeleter {
- void operator()(RSA* rsa) {
+ void operator()(RSA* rsa) const {
RSA_free(rsa);
}
};
struct ECKEYDeleter {
- void operator()(EC_KEY* ec_key) {
+ void operator()(EC_KEY* ec_key) const {
EC_KEY_free(ec_key);
}
};
diff --git a/wear_touch.cpp b/wear_touch.cpp
index cf33daa9f..e2ab44d2d 100644
--- a/wear_touch.cpp
+++ b/wear_touch.cpp
@@ -118,7 +118,7 @@ void WearSwipeDetector::run() {
}
void* WearSwipeDetector::touch_thread(void* cookie) {
- ((WearSwipeDetector*)cookie)->run();
+ (static_cast<WearSwipeDetector*>(cookie))->run();
return NULL;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 04:17:48 +0100