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authorTianjie Xu <xunchang@google.com>2016-05-23 20:03:41 +0200
committerAndroid (Google) Code Review <android-gerrit@google.com>2016-05-23 20:03:41 +0200
commit50f6417317f9e327ed76abaf34512370f8376245 (patch)
tree7e0d268233fc6bea07a361cf6913fc3a5e524063 /updater/blockimg.cpp
parentresolve merge conflicts of 86a28d0 to klp-modular-dev am: a5bc59620f am: 36acff7d7e am: 1f814d7630 am: ca45737e27 am: 8a1d4e97ad am: aa02888e55 am: 300af0779d am: fc1d9a49d1 (diff)
parentAllow recovery to return error codes (diff)
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Diffstat (limited to 'updater/blockimg.cpp')
-rw-r--r--updater/blockimg.cpp81
1 files changed, 54 insertions, 27 deletions
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index d67af664a..2efa1cd47 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -43,6 +43,7 @@
#include "applypatch/applypatch.h"
#include "edify/expr.h"
+#include "error_code.h"
#include "install.h"
#include "openssl/sha.h"
#include "minzip/Hash.h"
@@ -68,6 +69,7 @@ struct RangeSet {
std::vector<size_t> pos; // Actual limit is INT_MAX.
};
+static CauseCode failure_type = kNoCause;
static std::map<std::string, RangeSet> stash_map;
static void parse_range(const std::string& range_text, RangeSet& rs) {
@@ -145,6 +147,7 @@ static int read_all(int fd, uint8_t* data, size_t size) {
while (so_far < size) {
ssize_t r = TEMP_FAILURE_RETRY(ota_read(fd, data+so_far, size-so_far));
if (r == -1) {
+ failure_type = kFreadFailure;
fprintf(stderr, "read failed: %s\n", strerror(errno));
return -1;
}
@@ -162,6 +165,7 @@ static int write_all(int fd, const uint8_t* data, size_t size) {
while (written < size) {
ssize_t w = TEMP_FAILURE_RETRY(ota_write(fd, data+written, size-written));
if (w == -1) {
+ failure_type = kFwriteFailure;
fprintf(stderr, "write failed: %s\n", strerror(errno));
return -1;
}
@@ -178,6 +182,7 @@ static int write_all(int fd, const std::vector<uint8_t>& buffer, size_t size) {
static bool check_lseek(int fd, off64_t offset, int whence) {
off64_t rc = TEMP_FAILURE_RETRY(lseek64(fd, offset, whence));
if (rc == -1) {
+ failure_type = kLseekFailure;
fprintf(stderr, "lseek64 failed: %s\n", strerror(errno));
return false;
}
@@ -648,6 +653,7 @@ static int WriteStash(const std::string& base, const std::string& id, int blocks
}
if (ota_fsync(fd) == -1) {
+ failure_type = kFsyncFailure;
fprintf(stderr, "fsync \"%s\" failed: %s\n", fn.c_str(), strerror(errno));
return -1;
}
@@ -663,11 +669,13 @@ static int WriteStash(const std::string& base, const std::string& id, int blocks
unique_fd dfd_holder(dfd);
if (dfd == -1) {
+ failure_type = kFileOpenFailure;
fprintf(stderr, "failed to open \"%s\" failed: %s\n", dname.c_str(), strerror(errno));
return -1;
}
if (ota_fsync(dfd) == -1) {
+ failure_type = kFsyncFailure;
fprintf(stderr, "fsync \"%s\" failed: %s\n", dname.c_str(), strerror(errno));
return -1;
}
@@ -696,19 +704,21 @@ static int CreateStash(State* state, int maxblocks, const char* blockdev, std::s
int res = stat(dirname.c_str(), &sb);
if (res == -1 && errno != ENOENT) {
- ErrorAbort(state, "stat \"%s\" failed: %s\n", dirname.c_str(), strerror(errno));
+ ErrorAbort(state, kStashCreationFailure, "stat \"%s\" failed: %s\n",
+ dirname.c_str(), strerror(errno));
return -1;
} else if (res != 0) {
fprintf(stderr, "creating stash %s\n", dirname.c_str());
res = mkdir(dirname.c_str(), STASH_DIRECTORY_MODE);
if (res != 0) {
- ErrorAbort(state, "mkdir \"%s\" failed: %s\n", dirname.c_str(), strerror(errno));
+ ErrorAbort(state, kStashCreationFailure, "mkdir \"%s\" failed: %s\n",
+ dirname.c_str(), strerror(errno));
return -1;
}
if (CacheSizeCheck(maxblocks * BLOCKSIZE) != 0) {
- ErrorAbort(state, "not enough space for stash\n");
+ ErrorAbort(state, kStashCreationFailure, "not enough space for stash\n");
return -1;
}
@@ -728,7 +738,8 @@ static int CreateStash(State* state, int maxblocks, const char* blockdev, std::s
size = maxblocks * BLOCKSIZE - size;
if (size > 0 && CacheSizeCheck(size) != 0) {
- ErrorAbort(state, "not enough space for stash (%d more needed)\n", size);
+ ErrorAbort(state, kStashCreationFailure, "not enough space for stash (%d more needed)\n",
+ size);
return -1;
}
@@ -1346,19 +1357,21 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
std::unique_ptr<Value, decltype(&FreeValue)> patch_data_fn_holder(patch_data_fn, FreeValue);
if (blockdev_filename->type != VAL_STRING) {
- ErrorAbort(state, "blockdev_filename argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string",
+ name);
return StringValue(strdup(""));
}
if (transfer_list_value->type != VAL_BLOB) {
- ErrorAbort(state, "transfer_list argument to %s must be blob", name);
+ ErrorAbort(state, kArgsParsingFailure, "transfer_list argument to %s must be blob", name);
return StringValue(strdup(""));
}
if (new_data_fn->type != VAL_STRING) {
- ErrorAbort(state, "new_data_fn argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "new_data_fn argument to %s must be string", name);
return StringValue(strdup(""));
}
if (patch_data_fn->type != VAL_STRING) {
- ErrorAbort(state, "patch_data_fn argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "patch_data_fn argument to %s must be string",
+ name);
return StringValue(strdup(""));
}
@@ -1418,7 +1431,8 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
const std::string transfer_list(transfer_list_value->data, transfer_list_value->size);
std::vector<std::string> lines = android::base::Split(transfer_list, "\n");
if (lines.size() < 2) {
- ErrorAbort(state, "too few lines in the transfer list [%zd]\n", lines.size());
+ ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zd]\n",
+ lines.size());
return StringValue(strdup(""));
}
@@ -1433,7 +1447,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
// Second line in transfer list is the total number of blocks we expect to write
int total_blocks;
if (!android::base::ParseInt(lines[1].c_str(), &total_blocks, 0)) {
- ErrorAbort(state, "unexpected block count [%s]\n", lines[1].c_str());
+ ErrorAbort(state, kArgsParsingFailure, "unexpected block count [%s]\n", lines[1].c_str());
return StringValue(strdup(""));
}
@@ -1444,7 +1458,8 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
size_t start = 2;
if (params.version >= 2) {
if (lines.size() < 4) {
- ErrorAbort(state, "too few lines in the transfer list [%zu]\n", lines.size());
+ ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zu]\n",
+ lines.size());
return StringValue(strdup(""));
}
@@ -1454,7 +1469,8 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
// Fourth line is the maximum number of blocks that will be stashed simultaneously
int stash_max_blocks;
if (!android::base::ParseInt(lines[3].c_str(), &stash_max_blocks, 0)) {
- ErrorAbort(state, "unexpected maximum stash blocks [%s]\n", lines[3].c_str());
+ ErrorAbort(state, kArgsParsingFailure, "unexpected maximum stash blocks [%s]\n",
+ lines[3].c_str());
return StringValue(strdup(""));
}
@@ -1508,6 +1524,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
if (params.canwrite) {
if (ota_fsync(params.fd) == -1) {
+ failure_type = kFsyncFailure;
fprintf(stderr, "fsync failed: %s\n", strerror(errno));
goto pbiudone;
}
@@ -1542,6 +1559,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
pbiudone:
if (ota_fsync(params.fd) == -1) {
+ failure_type = kFsyncFailure;
fprintf(stderr, "fsync failed: %s\n", strerror(errno));
}
// params.fd will be automatically closed because of the fd_holder above.
@@ -1552,6 +1570,10 @@ pbiudone:
DeleteStash(params.stashbase);
}
+ if (failure_type != kNoCause && state->cause_code == kNoCause) {
+ state->cause_code = failure_type;
+ }
+
return StringValue(rc == 0 ? strdup("t") : strdup(""));
}
@@ -1657,18 +1679,20 @@ Value* RangeSha1Fn(const char* name, State* state, int /* argc */, Expr* argv[])
FreeValue);
if (blockdev_filename->type != VAL_STRING) {
- ErrorAbort(state, "blockdev_filename argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string",
+ name);
return StringValue(strdup(""));
}
if (ranges->type != VAL_STRING) {
- ErrorAbort(state, "ranges argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "ranges argument to %s must be string", name);
return StringValue(strdup(""));
}
int fd = open(blockdev_filename->data, O_RDWR);
unique_fd fd_holder(fd);
if (fd < 0) {
- ErrorAbort(state, "open \"%s\" failed: %s", blockdev_filename->data, strerror(errno));
+ ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s", blockdev_filename->data,
+ strerror(errno));
return StringValue(strdup(""));
}
@@ -1681,13 +1705,14 @@ Value* RangeSha1Fn(const char* name, State* state, int /* argc */, Expr* argv[])
std::vector<uint8_t> buffer(BLOCKSIZE);
for (size_t i = 0; i < rs.count; ++i) {
if (!check_lseek(fd, (off64_t)rs.pos[i*2] * BLOCKSIZE, SEEK_SET)) {
- ErrorAbort(state, "failed to seek %s: %s", blockdev_filename->data, strerror(errno));
+ ErrorAbort(state, kLseekFailure, "failed to seek %s: %s", blockdev_filename->data,
+ strerror(errno));
return StringValue(strdup(""));
}
for (size_t j = rs.pos[i*2]; j < rs.pos[i*2+1]; ++j) {
if (read_all(fd, buffer, BLOCKSIZE) == -1) {
- ErrorAbort(state, "failed to read %s: %s", blockdev_filename->data,
+ ErrorAbort(state, kFreadFailure, "failed to read %s: %s", blockdev_filename->data,
strerror(errno));
return StringValue(strdup(""));
}
@@ -1715,14 +1740,15 @@ Value* CheckFirstBlockFn(const char* name, State* state, int argc, Expr* argv[])
std::unique_ptr<Value, decltype(&FreeValue)> filename(arg_filename, FreeValue);
if (filename->type != VAL_STRING) {
- ErrorAbort(state, "filename argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "filename argument to %s must be string", name);
return StringValue(strdup(""));
}
int fd = open(arg_filename->data, O_RDONLY);
unique_fd fd_holder(fd);
if (fd == -1) {
- ErrorAbort(state, "open \"%s\" failed: %s", arg_filename->data, strerror(errno));
+ ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s", arg_filename->data,
+ strerror(errno));
return StringValue(strdup(""));
}
@@ -1730,7 +1756,7 @@ Value* CheckFirstBlockFn(const char* name, State* state, int argc, Expr* argv[])
std::vector<uint8_t> block0_buffer(BLOCKSIZE);
if (ReadBlocks(blk0, block0_buffer, fd) == -1) {
- ErrorAbort(state, "failed to read %s: %s", arg_filename->data,
+ ErrorAbort(state, kFreadFailure, "failed to read %s: %s", arg_filename->data,
strerror(errno));
return StringValue(strdup(""));
}
@@ -1766,11 +1792,11 @@ Value* BlockImageRecoverFn(const char* name, State* state, int argc, Expr* argv[
std::unique_ptr<Value, decltype(&FreeValue)> ranges(arg_ranges, FreeValue);
if (filename->type != VAL_STRING) {
- ErrorAbort(state, "filename argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "filename argument to %s must be string", name);
return StringValue(strdup(""));
}
if (ranges->type != VAL_STRING) {
- ErrorAbort(state, "ranges argument to %s must be string", name);
+ ErrorAbort(state, kArgsParsingFailure, "ranges argument to %s must be string", name);
return StringValue(strdup(""));
}
@@ -1781,19 +1807,20 @@ Value* BlockImageRecoverFn(const char* name, State* state, int argc, Expr* argv[
fec::io fh(filename->data, O_RDWR);
if (!fh) {
- ErrorAbort(state, "fec_open \"%s\" failed: %s", filename->data, strerror(errno));
+ ErrorAbort(state, kLibfecFailure, "fec_open \"%s\" failed: %s", filename->data,
+ strerror(errno));
return StringValue(strdup(""));
}
if (!fh.has_ecc() || !fh.has_verity()) {
- ErrorAbort(state, "unable to use metadata to correct errors");
+ ErrorAbort(state, kLibfecFailure, "unable to use metadata to correct errors");
return StringValue(strdup(""));
}
fec_status status;
if (!fh.get_status(status)) {
- ErrorAbort(state, "failed to read FEC status");
+ ErrorAbort(state, kLibfecFailure, "failed to read FEC status");
return StringValue(strdup(""));
}
@@ -1810,8 +1837,8 @@ Value* BlockImageRecoverFn(const char* name, State* state, int argc, Expr* argv[
}
if (fh.pread(buffer, BLOCKSIZE, (off64_t)j * BLOCKSIZE) != BLOCKSIZE) {
- ErrorAbort(state, "failed to recover %s (block %zu): %s", filename->data,
- j, strerror(errno));
+ ErrorAbort(state, kLibfecFailure, "failed to recover %s (block %zu): %s",
+ filename->data, j, strerror(errno));
return StringValue(strdup(""));
}