Update to AOSP 8.0 base
Change-Id: I29fe722b4eb9718765327902779046840a01433e
diff --git a/updater/install.cpp b/updater/install.cpp
index 1c79640..3adb37f 100644
--- a/updater/install.cpp
+++ b/updater/install.cpp
@@ -14,48 +14,53 @@
* limitations under the License.
*/
+#include "updater/install.h"
+
#include <ctype.h>
#include <errno.h>
+#include <fcntl.h>
+#include <ftw.h>
+#include <inttypes.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/capability.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <time.h>
-#include <selinux/selinux.h>
-#include <ftw.h>
-#include <sys/capability.h>
#include <sys/xattr.h>
-#include <linux/xattr.h>
-#include <inttypes.h>
+#include <time.h>
+#include <unistd.h>
+#include <utime.h>
#include <memory>
#include <string>
#include <vector>
#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/parsedouble.h>
#include <android-base/parseint.h>
-#include <android-base/strings.h>
+#include <android-base/properties.h>
#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
+#include <applypatch/applypatch.h>
+#include <bootloader_message/bootloader_message.h>
+#include <cutils/android_reboot.h>
+#include <ext4_utils/make_ext4fs.h>
+#include <ext4_utils/wipe.h>
+#include <openssl/sha.h>
+#include <selinux/label.h>
+#include <selinux/selinux.h>
+#include <ziparchive/zip_archive.h>
-#include "bootloader.h"
-#include "applypatch/applypatch.h"
-#include "cutils/android_reboot.h"
-#include "cutils/misc.h"
-#include "cutils/properties.h"
#include "edify/expr.h"
#include "error_code.h"
-#include "minzip/DirUtil.h"
-#include "mtdutils/mounts.h"
-#include "mtdutils/mtdutils.h"
-#include "openssl/sha.h"
+#include "mounts.h"
#include "ota_io.h"
-#include "updater.h"
+
#include "applypatch/applypatch.h"
#include "flashutils/flashutils.h"
#include "install.h"
@@ -68,1286 +73,703 @@
#include "wipe.h"
#endif
+#include "otautil/DirUtil.h"
+#include "otautil/ZipUtil.h"
+#include "print_sha1.h"
+#include "tune2fs.h"
+#include "updater/updater.h"
+
// Send over the buffer to recovery though the command pipe.
static void uiPrint(State* state, const std::string& buffer) {
- UpdaterInfo* ui = reinterpret_cast<UpdaterInfo*>(state->cookie);
+ UpdaterInfo* ui = static_cast<UpdaterInfo*>(state->cookie);
- // "line1\nline2\n" will be split into 3 tokens: "line1", "line2" and "".
- // So skip sending empty strings to UI.
- std::vector<std::string> lines = android::base::Split(buffer, "\n");
- for (auto& line: lines) {
- if (!line.empty()) {
- fprintf(ui->cmd_pipe, "ui_print %s\n", line.c_str());
- fprintf(ui->cmd_pipe, "ui_print\n");
- }
+ // "line1\nline2\n" will be split into 3 tokens: "line1", "line2" and "".
+ // So skip sending empty strings to UI.
+ std::vector<std::string> lines = android::base::Split(buffer, "\n");
+ for (auto& line : lines) {
+ if (!line.empty()) {
+ fprintf(ui->cmd_pipe, "ui_print %s\n", line.c_str());
}
+ }
- // On the updater side, we need to dump the contents to stderr (which has
- // been redirected to the log file). Because the recovery will only print
- // the contents to screen when processing pipe command ui_print.
- fprintf(stderr, "%s", buffer.c_str());
+ // On the updater side, we need to dump the contents to stderr (which has
+ // been redirected to the log file). Because the recovery will only print
+ // the contents to screen when processing pipe command ui_print.
+ LOG(INFO) << buffer;
}
-__attribute__((__format__(printf, 2, 3))) __nonnull((2))
-void uiPrintf(State* state, const char* format, ...) {
- std::string error_msg;
+void uiPrintf(State* _Nonnull state, const char* _Nonnull format, ...) {
+ std::string error_msg;
- va_list ap;
- va_start(ap, format);
- android::base::StringAppendV(&error_msg, format, ap);
- va_end(ap);
+ va_list ap;
+ va_start(ap, format);
+ android::base::StringAppendV(&error_msg, format, ap);
+ va_end(ap);
- uiPrint(state, error_msg);
+ uiPrint(state, error_msg);
}
-// Take a sha-1 digest and return it as a newly-allocated hex string.
-char* PrintSha1(const uint8_t* digest) {
- char* buffer = reinterpret_cast<char*>(malloc(SHA_DIGEST_LENGTH*2 + 1));
- const char* alphabet = "0123456789abcdef";
- size_t i;
- for (i = 0; i < SHA_DIGEST_LENGTH; ++i) {
- buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf];
- buffer[i*2+1] = alphabet[digest[i] & 0xf];
- }
- buffer[i*2] = '\0';
- return buffer;
-}
-
-// mount(fs_type, partition_type, location, mount_point)
-//
-// fs_type="yaffs2" partition_type="MTD" location=partition
-// fs_type="ext4" partition_type="EMMC" location=device
-Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
- if (argc != 4 && argc != 5) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 4-5 args, got %d", name, argc);
- }
- char* fs_type;
- char* partition_type;
- char* location;
- char* mount_point;
- char* mount_options;
- bool has_mount_options;
- if (argc == 5) {
- has_mount_options = true;
- if (ReadArgs(state, argv, 5, &fs_type, &partition_type,
- &location, &mount_point, &mount_options) < 0) {
- return NULL;
- }
- } else {
- has_mount_options = false;
- if (ReadArgs(state, argv, 4, &fs_type, &partition_type,
- &location, &mount_point) < 0) {
- return NULL;
- }
- }
-
- if (strlen(fs_type) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
- goto done;
- }
- if (strlen(partition_type) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
- name);
- goto done;
- }
- if (strlen(location) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
- goto done;
- }
- if (strlen(mount_point) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
- name);
- goto done;
- }
-
- {
- char *secontext = NULL;
-
- if (sehandle) {
- selabel_lookup(sehandle, &secontext, mount_point, 0755);
- setfscreatecon(secontext);
- }
-
- mkdir(mount_point, 0755);
-
- if (secontext) {
- freecon(secontext);
- setfscreatecon(NULL);
- }
- }
-
- if (strcmp(partition_type, "MTD") == 0) {
- mtd_scan_partitions();
- const MtdPartition* mtd;
- mtd = mtd_find_partition_by_name(location);
- if (mtd == NULL) {
- uiPrintf(state, "%s: no mtd partition named \"%s\"\n",
- name, location);
- result = strdup("");
- goto done;
- }
- if (mtd_mount_partition(mtd, mount_point, fs_type, 0 /* rw */) != 0) {
- uiPrintf(state, "mtd mount of %s failed: %s\n",
- location, strerror(errno));
- result = strdup("");
- goto done;
- }
- result = mount_point;
- } else {
- if (mount(location, mount_point, fs_type,
- MS_NOATIME | MS_NODEV | MS_NODIRATIME,
- has_mount_options ? mount_options : "") < 0) {
- uiPrintf(state, "%s: failed to mount %s at %s: %s\n",
- name, location, mount_point, strerror(errno));
- result = strdup("");
- } else {
- result = mount_point;
- }
- }
-
-done:
- free(fs_type);
- free(partition_type);
- free(location);
- if (result != mount_point) free(mount_point);
- if (has_mount_options) free(mount_options);
- return StringValue(result);
-}
-
-
-// is_mounted(mount_point)
-Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
- if (argc != 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
- }
- char* mount_point;
- if (ReadArgs(state, argv, 1, &mount_point) < 0) {
- return NULL;
- }
- if (strlen(mount_point) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "mount_point argument to unmount() can't be empty");
- goto done;
- }
-
- scan_mounted_volumes();
- {
- const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
- if (vol == NULL) {
- result = strdup("");
- } else {
- result = mount_point;
- }
- }
-
-done:
- if (result != mount_point) free(mount_point);
- return StringValue(result);
-}
-
-
-Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
- if (argc != 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
- }
- char* mount_point;
- if (ReadArgs(state, argv, 1, &mount_point) < 0) {
- return NULL;
- }
- if (strlen(mount_point) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "mount_point argument to unmount() can't be empty");
- goto done;
- }
-
- scan_mounted_volumes();
- {
- const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
- if (vol == NULL) {
- uiPrintf(state, "unmount of %s failed; no such volume\n", mount_point);
- result = strdup("");
- } else {
- int ret = unmount_mounted_volume(vol);
- if (ret != 0) {
- uiPrintf(state, "unmount of %s failed (%d): %s\n",
- mount_point, ret, strerror(errno));
- }
- result = mount_point;
- }
- }
-
-done:
- if (result != mount_point) free(mount_point);
- return StringValue(result);
-}
-
-static int exec_cmd(const char* path, char* const argv[]) {
- int status;
- pid_t child;
- if ((child = vfork()) == 0) {
- execv(path, argv);
- _exit(-1);
- }
- waitpid(child, &status, 0);
- if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
- printf("%s failed with status %d\n", path, WEXITSTATUS(status));
- }
- return WEXITSTATUS(status);
-}
-
-
-// format(fs_type, partition_type, location, fs_size, mount_point)
-//
-// fs_type="yaffs2" partition_type="MTD" location=partition fs_size=<bytes> mount_point=<location>
-// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
-// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
-// if fs_size == 0, then make fs uses the entire partition.
-// if fs_size > 0, that is the size to use
-// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs")
-Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
- if (argc != 5) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 5 args, got %d", name, argc);
- }
- char* fs_type;
- char* partition_type;
- char* location;
- char* fs_size;
- char* mount_point;
-
- if (ReadArgs(state, argv, 5, &fs_type, &partition_type, &location, &fs_size, &mount_point) < 0) {
- return NULL;
- }
-
- if (strlen(fs_type) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
- goto done;
- }
- if (strlen(partition_type) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
- name);
- goto done;
- }
- if (strlen(location) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
- goto done;
- }
-
- if (strlen(mount_point) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
- name);
- goto done;
- }
-
- if (strcmp(partition_type, "MTD") == 0) {
- mtd_scan_partitions();
- const MtdPartition* mtd = mtd_find_partition_by_name(location);
- if (mtd == NULL) {
- printf("%s: no mtd partition named \"%s\"",
- name, location);
- result = strdup("");
- goto done;
- }
- MtdWriteContext* ctx = mtd_write_partition(mtd);
- if (ctx == NULL) {
- printf("%s: can't write \"%s\"", name, location);
- result = strdup("");
- goto done;
- }
- if (mtd_erase_blocks(ctx, -1) == -1) {
- mtd_write_close(ctx);
- printf("%s: failed to erase \"%s\"", name, location);
- result = strdup("");
- goto done;
- }
- if (mtd_write_close(ctx) != 0) {
- printf("%s: failed to close \"%s\"", name, location);
- result = strdup("");
- goto done;
- }
- result = location;
-#ifdef USE_EXT4
- } else if (strcmp(fs_type, "ext4") == 0) {
- int status = make_ext4fs(location, atoll(fs_size), mount_point, sehandle);
- if (status != 0) {
- printf("%s: make_ext4fs failed (%d) on %s",
- name, status, location);
- result = strdup("");
- goto done;
- }
- result = location;
- } else if (strcmp(fs_type, "f2fs") == 0) {
- char *num_sectors;
- if (asprintf(&num_sectors, "%lld", atoll(fs_size) / 512) <= 0) {
- printf("format_volume: failed to create %s command for %s\n", fs_type, location);
- result = strdup("");
- goto done;
- }
- const char *f2fs_path = "/sbin/mkfs.f2fs";
- const char* const f2fs_argv[] = {"mkfs.f2fs", "-t", "-d1", location, num_sectors, NULL};
- int status = exec_cmd(f2fs_path, (char* const*)f2fs_argv);
- free(num_sectors);
- if (status != 0) {
- printf("%s: mkfs.f2fs failed (%d) on %s",
- name, status, location);
- result = strdup("");
- goto done;
- }
- result = location;
-#endif
- } else {
- printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"",
- name, fs_type, partition_type);
- }
-
-done:
- free(fs_type);
- free(partition_type);
- if (result != location) free(location);
- return StringValue(result);
-}
-
-Value* RenameFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
-
- char* src_name;
- char* dst_name;
-
- if (ReadArgs(state, argv, 2, &src_name, &dst_name) < 0) {
- return NULL;
- }
- if (strlen(src_name) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "src_name argument to %s() can't be empty", name);
- goto done;
- }
- if (strlen(dst_name) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "dst_name argument to %s() can't be empty", name);
- goto done;
- }
- if (make_parents(dst_name) != 0) {
- ErrorAbort(state, kFileRenameFailure, "Creating parent of %s failed, error %s",
- dst_name, strerror(errno));
- } else if (access(dst_name, F_OK) == 0 && access(src_name, F_OK) != 0) {
- // File was already moved
- result = dst_name;
- } else if (rename(src_name, dst_name) != 0) {
- ErrorAbort(state, kFileRenameFailure, "Rename of %s to %s failed, error %s",
- src_name, dst_name, strerror(errno));
- } else {
- result = dst_name;
- }
-
-done:
- free(src_name);
- if (result != dst_name) free(dst_name);
- return StringValue(result);
-}
-
-Value* DeleteFn(const char* name, State* state, int argc, Expr* argv[]) {
- char** paths = reinterpret_cast<char**>(malloc(argc * sizeof(char*)));
- for (int i = 0; i < argc; ++i) {
- paths[i] = Evaluate(state, argv[i]);
- if (paths[i] == NULL) {
- for (int j = 0; j < i; ++j) {
- free(paths[j]);
- }
- free(paths);
- return NULL;
- }
- }
-
- bool recursive = (strcmp(name, "delete_recursive") == 0);
-
- int success = 0;
- for (int i = 0; i < argc; ++i) {
- if ((recursive ? dirUnlinkHierarchy(paths[i]) : unlink(paths[i])) == 0)
- ++success;
- free(paths[i]);
- }
- free(paths);
-
- char buffer[10];
- sprintf(buffer, "%d", success);
- return StringValue(strdup(buffer));
-}
-
-
-Value* ShowProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
- char* frac_str;
- char* sec_str;
- if (ReadArgs(state, argv, 2, &frac_str, &sec_str) < 0) {
- return NULL;
- }
-
- double frac = strtod(frac_str, NULL);
- int sec;
- android::base::ParseInt(sec_str, &sec);
-
- UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
- fprintf(ui->cmd_pipe, "progress %f %d\n", frac, sec);
-
- free(sec_str);
- return StringValue(frac_str);
-}
-
-Value* SetProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
- }
- char* frac_str;
- if (ReadArgs(state, argv, 1, &frac_str) < 0) {
- return NULL;
- }
-
- double frac = strtod(frac_str, NULL);
-
- UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
- fprintf(ui->cmd_pipe, "set_progress %f\n", frac);
-
- return StringValue(frac_str);
-}
-
-// package_extract_dir(package_path, destination_path)
-Value* PackageExtractDirFn(const char* name, State* state,
- int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
- char* zip_path;
- char* dest_path;
- if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
-
- ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
-
- // To create a consistent system image, never use the clock for timestamps.
- struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default
-
- bool success = mzExtractRecursive(za, zip_path, dest_path,
- ×tamp,
- NULL, NULL, sehandle);
- free(zip_path);
- free(dest_path);
- return StringValue(strdup(success ? "t" : ""));
-}
-
-
-// package_extract_file(package_path, destination_path)
-// or
-// package_extract_file(package_path)
-// to return the entire contents of the file as the result of this
-// function (the char* returned is actually a FileContents*).
-Value* PackageExtractFileFn(const char* name, State* state,
- int argc, Expr* argv[]) {
- if (argc < 1 || argc > 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 or 2 args, got %d",
- name, argc);
- }
- bool success = false;
-
- if (argc == 2) {
- // The two-argument version extracts to a file.
-
- ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
-
- char* zip_path;
- char* dest_path;
- if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
-
- const ZipEntry* entry = mzFindZipEntry(za, zip_path);
- if (entry == NULL) {
- printf("%s: no %s in package\n", name, zip_path);
- goto done2;
- }
-
- {
- int fd = TEMP_FAILURE_RETRY(ota_open(dest_path, O_WRONLY | O_CREAT | O_TRUNC | O_SYNC,
- S_IRUSR | S_IWUSR));
- if (fd == -1) {
- printf("%s: can't open %s for write: %s\n", name, dest_path, strerror(errno));
- goto done2;
- }
- success = mzExtractZipEntryToFile(za, entry, fd);
- if (ota_fsync(fd) == -1) {
- printf("fsync of \"%s\" failed: %s\n", dest_path, strerror(errno));
- success = false;
- }
- if (ota_close(fd) == -1) {
- printf("close of \"%s\" failed: %s\n", dest_path, strerror(errno));
- success = false;
- }
- }
-
- done2:
- free(zip_path);
- free(dest_path);
- return StringValue(strdup(success ? "t" : ""));
- } else {
- // The one-argument version returns the contents of the file
- // as the result.
-
- char* zip_path;
- if (ReadArgs(state, argv, 1, &zip_path) < 0) return NULL;
-
- Value* v = reinterpret_cast<Value*>(malloc(sizeof(Value)));
- v->type = VAL_BLOB;
- v->size = -1;
- v->data = NULL;
-
- ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
- const ZipEntry* entry = mzFindZipEntry(za, zip_path);
- if (entry == NULL) {
- printf("%s: no %s in package\n", name, zip_path);
- goto done1;
- }
-
- v->size = mzGetZipEntryUncompLen(entry);
- v->data = reinterpret_cast<char*>(malloc(v->size));
- if (v->data == NULL) {
- printf("%s: failed to allocate %ld bytes for %s\n",
- name, (long)v->size, zip_path);
- goto done1;
- }
-
- success = mzExtractZipEntryToBuffer(za, entry,
- (unsigned char *)v->data);
-
- done1:
- free(zip_path);
- if (!success) {
- free(v->data);
- v->data = NULL;
- v->size = -1;
- }
- return v;
- }
+static bool is_dir(const std::string& dirpath) {
+ struct stat st;
+ return stat(dirpath.c_str(), &st) == 0 && S_ISDIR(st.st_mode);
}
// Create all parent directories of name, if necessary.
-static int make_parents(char* name) {
- char* p;
- for (p = name + (strlen(name)-1); p > name; --p) {
- if (*p != '/') continue;
- *p = '\0';
- if (make_parents(name) < 0) return -1;
- int result = mkdir(name, 0700);
- if (result == 0) printf("created [%s]\n", name);
- *p = '/';
- if (result == 0 || errno == EEXIST) {
- // successfully created or already existed; we're done
- return 0;
- } else {
- printf("failed to mkdir %s: %s\n", name, strerror(errno));
- return -1;
- }
+static bool make_parents(const std::string& name) {
+ size_t prev_end = 0;
+ while (prev_end < name.size()) {
+ size_t next_end = name.find('/', prev_end + 1);
+ if (next_end == std::string::npos) {
+ break;
}
- return 0;
+ std::string dir_path = name.substr(0, next_end);
+ if (!is_dir(dir_path)) {
+ int result = mkdir(dir_path.c_str(), 0700);
+ if (result != 0) {
+ PLOG(ERROR) << "failed to mkdir " << dir_path << " when make parents for " << name;
+ return false;
+ }
+
+ LOG(INFO) << "created [" << dir_path << "]";
+ }
+ prev_end = next_end;
+ }
+ return true;
}
-// symlink target src1 src2 ...
-// unlinks any previously existing src1, src2, etc before creating symlinks.
-Value* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc == 0) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1+ args, got %d", name, argc);
- }
- char* target;
- target = Evaluate(state, argv[0]);
- if (target == NULL) return NULL;
+// mount(fs_type, partition_type, location, mount_point)
+// mount(fs_type, partition_type, location, mount_point, mount_options)
- char** srcs = ReadVarArgs(state, argc-1, argv+1);
- if (srcs == NULL) {
- free(target);
- return NULL;
+// fs_type="ext4" partition_type="EMMC" location=device
+Value* MountFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 4 && argv.size() != 5) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 4-5 args, got %zu", name,
+ argv.size());
+ }
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& fs_type = args[0];
+ const std::string& partition_type = args[1];
+ const std::string& location = args[2];
+ const std::string& mount_point = args[3];
+ std::string mount_options;
+
+ if (argv.size() == 5) {
+ mount_options = args[4];
+ }
+
+ if (fs_type.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
+ }
+ if (partition_type.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
+ name);
+ }
+ if (location.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
+ }
+ if (mount_point.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
+ name);
+ }
+
+ {
+ char* secontext = nullptr;
+
+ if (sehandle) {
+ selabel_lookup(sehandle, &secontext, mount_point.c_str(), 0755);
+ setfscreatecon(secontext);
}
- int bad = 0;
- int i;
- for (i = 0; i < argc-1; ++i) {
- if (unlink(srcs[i]) < 0) {
- if (errno != ENOENT) {
- printf("%s: failed to remove %s: %s\n",
- name, srcs[i], strerror(errno));
- ++bad;
- }
- }
- if (make_parents(srcs[i])) {
- printf("%s: failed to symlink %s to %s: making parents failed\n",
- name, srcs[i], target);
- ++bad;
- }
- if (symlink(target, srcs[i]) < 0) {
- printf("%s: failed to symlink %s to %s: %s\n",
- name, srcs[i], target, strerror(errno));
- ++bad;
- }
- free(srcs[i]);
+ mkdir(mount_point.c_str(), 0755);
+
+ if (secontext) {
+ freecon(secontext);
+ setfscreatecon(nullptr);
}
- free(srcs);
- if (bad) {
- return ErrorAbort(state, kSymlinkFailure, "%s: some symlinks failed", name);
- }
- return StringValue(strdup(""));
+ }
+
+ if (mount(location.c_str(), mount_point.c_str(), fs_type.c_str(),
+ MS_NOATIME | MS_NODEV | MS_NODIRATIME, mount_options.c_str()) < 0) {
+ uiPrintf(state, "%s: failed to mount %s at %s: %s\n", name, location.c_str(),
+ mount_point.c_str(), strerror(errno));
+ return StringValue("");
+ }
+
+ return StringValue(mount_point);
}
-struct perm_parsed_args {
- bool has_uid;
- uid_t uid;
- bool has_gid;
- gid_t gid;
- bool has_mode;
- mode_t mode;
- bool has_fmode;
- mode_t fmode;
- bool has_dmode;
- mode_t dmode;
- bool has_selabel;
- char* selabel;
- bool has_capabilities;
- uint64_t capabilities;
-};
+// is_mounted(mount_point)
+Value* IsMountedFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
+ }
-static struct perm_parsed_args ParsePermArgs(State * state, int argc, char** args) {
- int i;
- struct perm_parsed_args parsed;
- int bad = 0;
- static int max_warnings = 20;
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& mount_point = args[0];
+ if (mount_point.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure,
+ "mount_point argument to unmount() can't be empty");
+ }
- memset(&parsed, 0, sizeof(parsed));
+ scan_mounted_volumes();
+ MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point.c_str());
+ if (vol == nullptr) {
+ return StringValue("");
+ }
- for (i = 1; i < argc; i += 2) {
- if (strcmp("uid", args[i]) == 0) {
- int64_t uid;
- if (sscanf(args[i+1], "%" SCNd64, &uid) == 1) {
- parsed.uid = uid;
- parsed.has_uid = true;
- } else {
- uiPrintf(state, "ParsePermArgs: invalid UID \"%s\"\n", args[i + 1]);
- bad++;
- }
- continue;
- }
- if (strcmp("gid", args[i]) == 0) {
- int64_t gid;
- if (sscanf(args[i+1], "%" SCNd64, &gid) == 1) {
- parsed.gid = gid;
- parsed.has_gid = true;
- } else {
- uiPrintf(state, "ParsePermArgs: invalid GID \"%s\"\n", args[i + 1]);
- bad++;
- }
- continue;
- }
- if (strcmp("mode", args[i]) == 0) {
- int32_t mode;
- if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
- parsed.mode = mode;
- parsed.has_mode = true;
- } else {
- uiPrintf(state, "ParsePermArgs: invalid mode \"%s\"\n", args[i + 1]);
- bad++;
- }
- continue;
- }
- if (strcmp("dmode", args[i]) == 0) {
- int32_t mode;
- if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
- parsed.dmode = mode;
- parsed.has_dmode = true;
- } else {
- uiPrintf(state, "ParsePermArgs: invalid dmode \"%s\"\n", args[i + 1]);
- bad++;
- }
- continue;
- }
- if (strcmp("fmode", args[i]) == 0) {
- int32_t mode;
- if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
- parsed.fmode = mode;
- parsed.has_fmode = true;
- } else {
- uiPrintf(state, "ParsePermArgs: invalid fmode \"%s\"\n", args[i + 1]);
- bad++;
- }
- continue;
- }
- if (strcmp("capabilities", args[i]) == 0) {
- int64_t capabilities;
- if (sscanf(args[i+1], "%" SCNi64, &capabilities) == 1) {
- parsed.capabilities = capabilities;
- parsed.has_capabilities = true;
- } else {
- uiPrintf(state, "ParsePermArgs: invalid capabilities \"%s\"\n", args[i + 1]);
- bad++;
- }
- continue;
- }
- if (strcmp("selabel", args[i]) == 0) {
- if (args[i+1][0] != '\0') {
- parsed.selabel = args[i+1];
- parsed.has_selabel = true;
- } else {
- uiPrintf(state, "ParsePermArgs: invalid selabel \"%s\"\n", args[i + 1]);
- bad++;
- }
- continue;
- }
- if (max_warnings != 0) {
- printf("ParsedPermArgs: unknown key \"%s\", ignoring\n", args[i]);
- max_warnings--;
- if (max_warnings == 0) {
- printf("ParsedPermArgs: suppressing further warnings\n");
- }
- }
- }
- return parsed;
+ return StringValue(mount_point);
}
-static int ApplyParsedPerms(
- State * state,
- const char* filename,
- const struct stat *statptr,
- struct perm_parsed_args parsed)
-{
- int bad = 0;
+Value* UnmountFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
+ }
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& mount_point = args[0];
+ if (mount_point.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure,
+ "mount_point argument to unmount() can't be empty");
+ }
- if (parsed.has_selabel) {
- if (lsetfilecon(filename, parsed.selabel) != 0) {
- uiPrintf(state, "ApplyParsedPerms: lsetfilecon of %s to %s failed: %s\n",
- filename, parsed.selabel, strerror(errno));
- bad++;
- }
+ scan_mounted_volumes();
+ MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point.c_str());
+ if (vol == nullptr) {
+ uiPrintf(state, "unmount of %s failed; no such volume\n", mount_point.c_str());
+ return nullptr;
+ } else {
+ int ret = unmount_mounted_volume(vol);
+ if (ret != 0) {
+ uiPrintf(state, "unmount of %s failed (%d): %s\n", mount_point.c_str(), ret, strerror(errno));
}
+ }
- /* ignore symlinks */
- if (S_ISLNK(statptr->st_mode)) {
- return bad;
- }
-
- if (parsed.has_uid) {
- if (chown(filename, parsed.uid, -1) < 0) {
- uiPrintf(state, "ApplyParsedPerms: chown of %s to %d failed: %s\n",
- filename, parsed.uid, strerror(errno));
- bad++;
- }
- }
-
- if (parsed.has_gid) {
- if (chown(filename, -1, parsed.gid) < 0) {
- uiPrintf(state, "ApplyParsedPerms: chgrp of %s to %d failed: %s\n",
- filename, parsed.gid, strerror(errno));
- bad++;
- }
- }
-
- if (parsed.has_mode) {
- if (chmod(filename, parsed.mode) < 0) {
- uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
- filename, parsed.mode, strerror(errno));
- bad++;
- }
- }
-
- if (parsed.has_dmode && S_ISDIR(statptr->st_mode)) {
- if (chmod(filename, parsed.dmode) < 0) {
- uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
- filename, parsed.dmode, strerror(errno));
- bad++;
- }
- }
-
- if (parsed.has_fmode && S_ISREG(statptr->st_mode)) {
- if (chmod(filename, parsed.fmode) < 0) {
- uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
- filename, parsed.fmode, strerror(errno));
- bad++;
- }
- }
-
- if (parsed.has_capabilities && S_ISREG(statptr->st_mode)) {
- if (parsed.capabilities == 0) {
- if ((removexattr(filename, XATTR_NAME_CAPS) == -1) && (errno != ENODATA)) {
- // Report failure unless it's ENODATA (attribute not set)
- uiPrintf(state, "ApplyParsedPerms: removexattr of %s to %" PRIx64 " failed: %s\n",
- filename, parsed.capabilities, strerror(errno));
- bad++;
- }
- } else {
- struct vfs_cap_data cap_data;
- memset(&cap_data, 0, sizeof(cap_data));
- cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
- cap_data.data[0].permitted = (uint32_t) (parsed.capabilities & 0xffffffff);
- cap_data.data[0].inheritable = 0;
- cap_data.data[1].permitted = (uint32_t) (parsed.capabilities >> 32);
- cap_data.data[1].inheritable = 0;
- if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
- uiPrintf(state, "ApplyParsedPerms: setcap of %s to %" PRIx64 " failed: %s\n",
- filename, parsed.capabilities, strerror(errno));
- bad++;
- }
- }
- }
-
- return bad;
+ return StringValue(mount_point);
}
-// nftw doesn't allow us to pass along context, so we need to use
-// global variables. *sigh*
-static struct perm_parsed_args recursive_parsed_args;
-static State* recursive_state;
+static int exec_cmd(const char* path, char* const argv[]) {
+ pid_t child;
+ if ((child = vfork()) == 0) {
+ execv(path, argv);
+ _exit(EXIT_FAILURE);
+ }
-static int do_SetMetadataRecursive(const char* filename, const struct stat *statptr,
- int fileflags, struct FTW *pfwt) {
- return ApplyParsedPerms(recursive_state, filename, statptr, recursive_parsed_args);
+ int status;
+ waitpid(child, &status, 0);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
+ LOG(ERROR) << path << " failed with status " << WEXITSTATUS(status);
+ }
+ return WEXITSTATUS(status);
}
-static Value* SetMetadataFn(const char* name, State* state, int argc, Expr* argv[]) {
- int bad = 0;
- struct stat sb;
- Value* result = NULL;
+// format(fs_type, partition_type, location, fs_size, mount_point)
+//
+// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
+// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
+// if fs_size == 0, then make fs uses the entire partition.
+// if fs_size > 0, that is the size to use
+// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs")
+Value* FormatFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 5) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 5 args, got %zu", name,
+ argv.size());
+ }
- bool recursive = (strcmp(name, "set_metadata_recursive") == 0);
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& fs_type = args[0];
+ const std::string& partition_type = args[1];
+ const std::string& location = args[2];
+ const std::string& fs_size = args[3];
+ const std::string& mount_point = args[4];
- if ((argc % 2) != 1) {
- return ErrorAbort(state, kArgsParsingFailure,
- "%s() expects an odd number of arguments, got %d", name, argc);
+ if (fs_type.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
+ }
+ if (partition_type.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
+ name);
+ }
+ if (location.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
+ }
+ if (mount_point.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
+ name);
+ }
+
+ int64_t size;
+ if (!android::base::ParseInt(fs_size, &size)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse int in %s\n", name,
+ fs_size.c_str());
+ }
+
+ if (fs_type == "ext4") {
+ int status = make_ext4fs(location.c_str(), size, mount_point.c_str(), sehandle);
+ if (status != 0) {
+ LOG(ERROR) << name << ": make_ext4fs failed (" << status << ") on " << location;
+ return StringValue("");
}
-
- char** args = ReadVarArgs(state, argc, argv);
- if (args == NULL) return NULL;
-
- if (lstat(args[0], &sb) == -1) {
- result = ErrorAbort(state, kSetMetadataFailure, "%s: Error on lstat of \"%s\": %s",
- name, args[0], strerror(errno));
- goto done;
+ return StringValue(location);
+ } else if (fs_type == "f2fs") {
+ if (size < 0) {
+ LOG(ERROR) << name << ": fs_size can't be negative for f2fs: " << fs_size;
+ return StringValue("");
}
+ std::string num_sectors = std::to_string(size / 512);
- {
- struct perm_parsed_args parsed = ParsePermArgs(state, argc, args);
-
- if (recursive) {
- recursive_parsed_args = parsed;
- recursive_state = state;
- bad += nftw(args[0], do_SetMetadataRecursive, 30, FTW_CHDIR | FTW_DEPTH | FTW_PHYS);
- memset(&recursive_parsed_args, 0, sizeof(recursive_parsed_args));
- recursive_state = NULL;
- } else {
- bad += ApplyParsedPerms(state, args[0], &sb, parsed);
- }
+ const char* f2fs_path = "/sbin/mkfs.f2fs";
+ const char* const f2fs_argv[] = { "mkfs.f2fs", "-t", "-d1", location.c_str(),
+ num_sectors.c_str(), nullptr };
+ int status = exec_cmd(f2fs_path, const_cast<char* const*>(f2fs_argv));
+ if (status != 0) {
+ LOG(ERROR) << name << ": mkfs.f2fs failed (" << status << ") on " << location;
+ return StringValue("");
}
+ return StringValue(location);
+ } else {
+ LOG(ERROR) << name << ": unsupported fs_type \"" << fs_type << "\" partition_type \""
+ << partition_type << "\"";
+ }
-done:
- for (int i = 0; i < argc; ++i) {
- free(args[i]);
- }
- free(args);
-
- if (result != NULL) {
- return result;
- }
-
- if (bad > 0) {
- return ErrorAbort(state, kSetMetadataFailure, "%s: some changes failed", name);
- }
-
- return StringValue(strdup(""));
+ return nullptr;
}
-Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
+Value* ShowProgressFn(const char* name, State* state,
+ const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
+ argv.size());
+ }
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& frac_str = args[0];
+ const std::string& sec_str = args[1];
+
+ double frac;
+ if (!android::base::ParseDouble(frac_str.c_str(), &frac)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse double in %s\n", name,
+ frac_str.c_str());
+ }
+ int sec;
+ if (!android::base::ParseInt(sec_str.c_str(), &sec)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse int in %s\n", name,
+ sec_str.c_str());
+ }
+
+ UpdaterInfo* ui = static_cast<UpdaterInfo*>(state->cookie);
+ fprintf(ui->cmd_pipe, "progress %f %d\n", frac, sec);
+
+ return StringValue(frac_str);
+}
+
+Value* SetProgressFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
+ }
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& frac_str = args[0];
+
+ double frac;
+ if (!android::base::ParseDouble(frac_str.c_str(), &frac)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s: failed to parse double in %s\n", name,
+ frac_str.c_str());
+ }
+
+ UpdaterInfo* ui = static_cast<UpdaterInfo*>(state->cookie);
+ fprintf(ui->cmd_pipe, "set_progress %f\n", frac);
+
+ return StringValue(frac_str);
+}
+
+// package_extract_dir(package_dir, dest_dir)
+// Extracts all files from the package underneath package_dir and writes them to the
+// corresponding tree beneath dest_dir. Any existing files are overwritten.
+// Example: package_extract_dir("system", "/system")
+//
+// Note: package_dir needs to be a relative path; dest_dir needs to be an absolute path.
+Value* PackageExtractDirFn(const char* name, State* state,
+ const std::vector<std::unique_ptr<Expr>>&argv) {
+ if (argv.size() != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
+ argv.size());
+ }
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& zip_path = args[0];
+ const std::string& dest_path = args[1];
+
+ ZipArchiveHandle za = static_cast<UpdaterInfo*>(state->cookie)->package_zip;
+
+ // To create a consistent system image, never use the clock for timestamps.
+ constexpr struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default
+
+ bool success = ExtractPackageRecursive(za, zip_path, dest_path, ×tamp, sehandle);
+
+ return StringValue(success ? "t" : "");
+}
+
+// package_extract_file(package_file[, dest_file])
+// Extracts a single package_file from the update package and writes it to dest_file,
+// overwriting existing files if necessary. Without the dest_file argument, returns the
+// contents of the package file as a binary blob.
+Value* PackageExtractFileFn(const char* name, State* state,
+ const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() < 1 || argv.size() > 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 or 2 args, got %zu", name,
+ argv.size());
+ }
+
+ if (argv.size() == 2) {
+ // The two-argument version extracts to a file.
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse %zu args", name,
+ argv.size());
}
- char* key = Evaluate(state, argv[0]);
- if (key == NULL) return NULL;
+ const std::string& zip_path = args[0];
+ const std::string& dest_path = args[1];
- char value[PROPERTY_VALUE_MAX];
- property_get(key, value, "");
- free(key);
+ ZipArchiveHandle za = static_cast<UpdaterInfo*>(state->cookie)->package_zip;
+ ZipString zip_string_path(zip_path.c_str());
+ ZipEntry entry;
+ if (FindEntry(za, zip_string_path, &entry) != 0) {
+ LOG(ERROR) << name << ": no " << zip_path << " in package";
+ return StringValue("");
+ }
- return StringValue(strdup(value));
+ unique_fd fd(TEMP_FAILURE_RETRY(
+ ota_open(dest_path.c_str(), O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)));
+ if (fd == -1) {
+ PLOG(ERROR) << name << ": can't open " << dest_path << " for write";
+ return StringValue("");
+ }
+
+ bool success = true;
+ int32_t ret = ExtractEntryToFile(za, &entry, fd);
+ if (ret != 0) {
+ LOG(ERROR) << name << ": Failed to extract entry \"" << zip_path << "\" ("
+ << entry.uncompressed_length << " bytes) to \"" << dest_path
+ << "\": " << ErrorCodeString(ret);
+ success = false;
+ }
+ if (ota_fsync(fd) == -1) {
+ PLOG(ERROR) << "fsync of \"" << dest_path << "\" failed";
+ success = false;
+ }
+ if (ota_close(fd) == -1) {
+ PLOG(ERROR) << "close of \"" << dest_path << "\" failed";
+ success = false;
+ }
+
+ return StringValue(success ? "t" : "");
+ } else {
+ // The one-argument version returns the contents of the file as the result.
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse %zu args", name,
+ argv.size());
+ }
+ const std::string& zip_path = args[0];
+
+ ZipArchiveHandle za = static_cast<UpdaterInfo*>(state->cookie)->package_zip;
+ ZipString zip_string_path(zip_path.c_str());
+ ZipEntry entry;
+ if (FindEntry(za, zip_string_path, &entry) != 0) {
+ return ErrorAbort(state, kPackageExtractFileFailure, "%s(): no %s in package", name,
+ zip_path.c_str());
+ }
+
+ std::string buffer;
+ buffer.resize(entry.uncompressed_length);
+
+ int32_t ret = ExtractToMemory(za, &entry, reinterpret_cast<uint8_t*>(&buffer[0]), buffer.size());
+ if (ret != 0) {
+ return ErrorAbort(state, kPackageExtractFileFailure,
+ "%s: Failed to extract entry \"%s\" (%zu bytes) to memory: %s", name,
+ zip_path.c_str(), buffer.size(), ErrorCodeString(ret));
+ }
+
+ return new Value(VAL_BLOB, buffer);
+ }
+}
+
+Value* GetPropFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
+ }
+ std::string key;
+ if (!Evaluate(state, argv[0], &key)) {
+ return nullptr;
+ }
+ std::string value = android::base::GetProperty(key, "");
+
+ return StringValue(value);
}
// file_getprop(file, key)
//
// interprets 'file' as a getprop-style file (key=value pairs, one
-// per line. # comment lines,blank lines, lines without '=' ignored),
+// per line. # comment lines, blank lines, lines without '=' ignored),
// and returns the value for 'key' (or "" if it isn't defined).
-Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
- char* buffer = NULL;
- char* filename;
- char* key;
- if (ReadArgs(state, argv, 2, &filename, &key) < 0) {
- return NULL;
+Value* FileGetPropFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
+ argv.size());
+ }
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
+ const std::string& key = args[1];
+
+ struct stat st;
+ if (stat(filename.c_str(), &st) < 0) {
+ return ErrorAbort(state, kFileGetPropFailure, "%s: failed to stat \"%s\": %s", name,
+ filename.c_str(), strerror(errno));
+ }
+
+ constexpr off_t MAX_FILE_GETPROP_SIZE = 65536;
+ if (st.st_size > MAX_FILE_GETPROP_SIZE) {
+ return ErrorAbort(state, kFileGetPropFailure, "%s too large for %s (max %lld)",
+ filename.c_str(), name, static_cast<long long>(MAX_FILE_GETPROP_SIZE));
+ }
+
+ std::string buffer(st.st_size, '\0');
+ unique_file f(ota_fopen(filename.c_str(), "rb"));
+ if (f == nullptr) {
+ return ErrorAbort(state, kFileOpenFailure, "%s: failed to open %s: %s", name, filename.c_str(),
+ strerror(errno));
+ }
+
+ if (ota_fread(&buffer[0], 1, st.st_size, f.get()) != static_cast<size_t>(st.st_size)) {
+ ErrorAbort(state, kFreadFailure, "%s: failed to read %zu bytes from %s", name,
+ static_cast<size_t>(st.st_size), filename.c_str());
+ return nullptr;
+ }
+
+ ota_fclose(f);
+
+ std::vector<std::string> lines = android::base::Split(buffer, "\n");
+ for (size_t i = 0; i < lines.size(); i++) {
+ std::string line = android::base::Trim(lines[i]);
+
+ // comment or blank line: skip to next line
+ if (line.empty() || line[0] == '#') {
+ continue;
+ }
+ size_t equal_pos = line.find('=');
+ if (equal_pos == std::string::npos) {
+ continue;
}
- struct stat st;
- if (stat(filename, &st) < 0) {
- ErrorAbort(state, kFileGetPropFailure, "%s: failed to stat \"%s\": %s", name, filename,
- strerror(errno));
- goto done;
- }
+ // trim whitespace between key and '='
+ std::string str = android::base::Trim(line.substr(0, equal_pos));
-#define MAX_FILE_GETPROP_SIZE 65536
+ // not the key we're looking for
+ if (key != str) continue;
- if (st.st_size > MAX_FILE_GETPROP_SIZE) {
- ErrorAbort(state, kFileGetPropFailure, "%s too large for %s (max %d)", filename, name,
- MAX_FILE_GETPROP_SIZE);
- goto done;
- }
+ return StringValue(android::base::Trim(line.substr(equal_pos + 1)));
+ }
- buffer = reinterpret_cast<char*>(malloc(st.st_size+1));
- if (buffer == NULL) {
- ErrorAbort(state, kFileGetPropFailure, "%s: failed to alloc %lld bytes", name,
- (long long)st.st_size+1);
- goto done;
- }
-
- FILE* f;
- f = fopen(filename, "rb");
- if (f == NULL) {
- ErrorAbort(state, kFileOpenFailure, "%s: failed to open %s: %s", name, filename,
- strerror(errno));
- goto done;
- }
-
- if (ota_fread(buffer, 1, st.st_size, f) != static_cast<size_t>(st.st_size)) {
- ErrorAbort(state, kFreadFailure, "%s: failed to read %lld bytes from %s",
- name, (long long)st.st_size+1, filename);
- fclose(f);
- goto done;
- }
- buffer[st.st_size] = '\0';
-
- fclose(f);
-
- char* line;
- line = strtok(buffer, "\n");
- do {
- // skip whitespace at start of line
- while (*line && isspace(*line)) ++line;
-
- // comment or blank line: skip to next line
- if (*line == '\0' || *line == '#') continue;
-
- char* equal = strchr(line, '=');
- if (equal == NULL) {
- continue;
- }
-
- // trim whitespace between key and '='
- char* key_end = equal-1;
- while (key_end > line && isspace(*key_end)) --key_end;
- key_end[1] = '\0';
-
- // not the key we're looking for
- if (strcmp(key, line) != 0) continue;
-
- // skip whitespace after the '=' to the start of the value
- char* val_start = equal+1;
- while(*val_start && isspace(*val_start)) ++val_start;
-
- // trim trailing whitespace
- char* val_end = val_start + strlen(val_start)-1;
- while (val_end > val_start && isspace(*val_end)) --val_end;
- val_end[1] = '\0';
-
- result = strdup(val_start);
- break;
-
- } while ((line = strtok(NULL, "\n")));
-
- if (result == NULL) result = strdup("");
-
- done:
- free(filename);
- free(key);
- free(buffer);
- return StringValue(result);
-}
-
-// write_raw_image(filename_or_blob, partition)
-Value* WriteRawImageFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
-
- Value* partition_value;
- Value* contents;
- if (ReadValueArgs(state, argv, 2, &contents, &partition_value) < 0) {
- return NULL;
- }
-
- char* partition = NULL;
- if (partition_value->type != VAL_STRING) {
- ErrorAbort(state, kArgsParsingFailure, "partition argument to %s must be string", name);
- goto done;
- }
- partition = partition_value->data;
- if (strlen(partition) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "partition argument to %s can't be empty", name);
- goto done;
- }
- if (contents->type == VAL_STRING && strlen((char*) contents->data) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "file argument to %s can't be empty", name);
- goto done;
- }
-
- mtd_scan_partitions();
- const MtdPartition* mtd;
- mtd = mtd_find_partition_by_name(partition);
- if (mtd == NULL) {
- printf("%s: no mtd partition named \"%s\"\n", name, partition);
- result = strdup("");
- goto done;
- }
-
- MtdWriteContext* ctx;
- ctx = mtd_write_partition(mtd);
- if (ctx == NULL) {
- printf("%s: can't write mtd partition \"%s\"\n",
- name, partition);
- result = strdup("");
- goto done;
- }
-
- bool success;
-
- if (contents->type == VAL_STRING) {
- // we're given a filename as the contents
- char* filename = contents->data;
- FILE* f = ota_fopen(filename, "rb");
- if (f == NULL) {
- printf("%s: can't open %s: %s\n", name, filename, strerror(errno));
- result = strdup("");
- goto done;
- }
-
- success = true;
- char* buffer = reinterpret_cast<char*>(malloc(BUFSIZ));
- int read;
- while (success && (read = ota_fread(buffer, 1, BUFSIZ, f)) > 0) {
- int wrote = mtd_write_data(ctx, buffer, read);
- success = success && (wrote == read);
- }
- free(buffer);
- ota_fclose(f);
- } else {
- // we're given a blob as the contents
- ssize_t wrote = mtd_write_data(ctx, contents->data, contents->size);
- success = (wrote == contents->size);
- }
- if (!success) {
- printf("mtd_write_data to %s failed: %s\n",
- partition, strerror(errno));
- }
-
- if (mtd_erase_blocks(ctx, -1) == -1) {
- printf("%s: error erasing blocks of %s\n", name, partition);
- }
- if (mtd_write_close(ctx) != 0) {
- printf("%s: error closing write of %s\n", name, partition);
- }
-
- printf("%s %s partition\n",
- success ? "wrote" : "failed to write", partition);
-
- result = success ? partition : strdup("");
-
-done:
- if (result != partition) FreeValue(partition_value);
- FreeValue(contents);
- return StringValue(result);
+ return StringValue("");
}
// apply_patch_space(bytes)
-Value* ApplyPatchSpaceFn(const char* name, State* state,
- int argc, Expr* argv[]) {
- char* bytes_str;
- if (ReadArgs(state, argv, 1, &bytes_str) < 0) {
- return NULL;
- }
+Value* ApplyPatchSpaceFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 args, got %zu", name,
+ argv.size());
+ }
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& bytes_str = args[0];
- size_t bytes;
- if (!android::base::ParseUint(bytes_str, &bytes)) {
- ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count\n\n",
- name, bytes_str);
- free(bytes_str);
- return nullptr;
- }
+ size_t bytes;
+ if (!android::base::ParseUint(bytes_str.c_str(), &bytes)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count\n\n",
+ name, bytes_str.c_str());
+ }
- return StringValue(strdup(CacheSizeCheck(bytes) ? "" : "t"));
+ return StringValue(CacheSizeCheck(bytes) ? "" : "t");
}
-// apply_patch(file, size, init_sha1, tgt_sha1, patch)
-
-Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc < 6 || (argc % 2) == 1) {
+// apply_patch(src_file, tgt_file, tgt_sha1, tgt_size, patch1_sha1, patch1_blob, [...])
+// Applies a binary patch to the src_file to produce the tgt_file. If the desired target is the
+// same as the source, pass "-" for tgt_file. tgt_sha1 and tgt_size are the expected final SHA1
+// hash and size of the target file. The remaining arguments must come in pairs: a SHA1 hash (a
+// 40-character hex string) and a blob. The blob is the patch to be applied when the source
+// file's current contents have the given SHA1.
+//
+// The patching is done in a safe manner that guarantees the target file either has the desired
+// SHA1 hash and size, or it is untouched -- it will not be left in an unrecoverable intermediate
+// state. If the process is interrupted during patching, the target file may be in an intermediate
+// state; a copy exists in the cache partition so restarting the update can successfully update
+// the file.
+Value* ApplyPatchFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() < 6 || (argv.size() % 2) == 1) {
return ErrorAbort(state, kArgsParsingFailure, "%s(): expected at least 6 args and an "
- "even number, got %d", name, argc);
+ "even number, got %zu", name, argv.size());
}
- char* source_filename;
- char* target_filename;
- char* target_sha1;
- char* target_size_str;
- if (ReadArgs(state, argv, 4, &source_filename, &target_filename,
- &target_sha1, &target_size_str) < 0) {
- return NULL;
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args, 0, 4)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
}
+ const std::string& source_filename = args[0];
+ const std::string& target_filename = args[1];
+ const std::string& target_sha1 = args[2];
+ const std::string& target_size_str = args[3];
size_t target_size;
- if (!android::base::ParseUint(target_size_str, &target_size)) {
- ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count",
- name, target_size_str);
- free(source_filename);
- free(target_filename);
- free(target_sha1);
- free(target_size_str);
+ if (!android::base::ParseUint(target_size_str.c_str(), &target_size)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count",
+ name, target_size_str.c_str());
+ }
+
+ int patchcount = (argv.size()-4) / 2;
+ std::vector<std::unique_ptr<Value>> arg_values;
+ if (!ReadValueArgs(state, argv, &arg_values, 4, argv.size() - 4)) {
return nullptr;
}
- int patchcount = (argc-4) / 2;
- std::unique_ptr<Value*, decltype(&free)> arg_values(ReadValueVarArgs(state, argc-4, argv+4),
- free);
- if (!arg_values) {
- return nullptr;
- }
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> patch_shas;
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> patches;
- // Protect values by unique_ptrs first to get rid of memory leak.
- for (int i = 0; i < patchcount * 2; i += 2) {
- patch_shas.emplace_back(arg_values.get()[i], FreeValue);
- patches.emplace_back(arg_values.get()[i+1], FreeValue);
- }
-
for (int i = 0; i < patchcount; ++i) {
- if (patch_shas[i]->type != VAL_STRING) {
- ErrorAbort(state, kArgsParsingFailure, "%s(): sha-1 #%d is not string", name, i);
- return nullptr;
+ if (arg_values[i * 2]->type != VAL_STRING) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): sha-1 #%d is not string", name,
+ i * 2);
}
- if (patches[i]->type != VAL_BLOB) {
- ErrorAbort(state, kArgsParsingFailure, "%s(): patch #%d is not blob", name, i);
- return nullptr;
+ if (arg_values[i * 2 + 1]->type != VAL_BLOB) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): patch #%d is not blob", name,
+ i * 2 + 1);
}
}
- std::vector<char*> patch_sha_str;
- std::vector<Value*> patch_ptrs;
+ std::vector<std::string> patch_sha_str;
+ std::vector<std::unique_ptr<Value>> patches;
for (int i = 0; i < patchcount; ++i) {
- patch_sha_str.push_back(patch_shas[i]->data);
- patch_ptrs.push_back(patches[i].get());
+ patch_sha_str.push_back(arg_values[i * 2]->data);
+ patches.push_back(std::move(arg_values[i * 2 + 1]));
}
- int result = applypatch(source_filename, target_filename,
- target_sha1, target_size,
- patchcount, patch_sha_str.data(), patch_ptrs.data(), NULL);
+ int result = applypatch(source_filename.c_str(), target_filename.c_str(),
+ target_sha1.c_str(), target_size,
+ patch_sha_str, patches, nullptr);
- return StringValue(strdup(result == 0 ? "t" : ""));
+ return StringValue(result == 0 ? "t" : "");
}
-// apply_patch_check(file, [sha1_1, ...])
-Value* ApplyPatchCheckFn(const char* name, State* state,
- int argc, Expr* argv[]) {
- if (argc < 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s(): expected at least 1 arg, got %d",
- name, argc);
- }
+// apply_patch_check(filename, [sha1, ...])
+// Returns true if the contents of filename or the temporary copy in the cache partition (if
+// present) have a SHA-1 checksum equal to one of the given sha1 values. sha1 values are
+// specified as 40 hex digits. This function differs from sha1_check(read_file(filename),
+// sha1 [, ...]) in that it knows to check the cache partition copy, so apply_patch_check() will
+// succeed even if the file was corrupted by an interrupted apply_patch() update.
+Value* ApplyPatchCheckFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() < 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): expected at least 1 arg, got %zu", name,
+ argv.size());
+ }
- char* filename;
- if (ReadArgs(state, argv, 1, &filename) < 0) {
- return NULL;
- }
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args, 0, 1)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
- int patchcount = argc-1;
- char** sha1s = ReadVarArgs(state, argc-1, argv+1);
+ std::vector<std::string> sha1s;
+ if (argv.size() > 1 && !ReadArgs(state, argv, &sha1s, 1, argv.size() - 1)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ int result = applypatch_check(filename.c_str(), sha1s);
- int result = applypatch_check(filename, patchcount, sha1s);
-
- int i;
- for (i = 0; i < patchcount; ++i) {
- free(sha1s[i]);
- }
- free(sha1s);
-
- return StringValue(strdup(result == 0 ? "t" : ""));
+ return StringValue(result == 0 ? "t" : "");
}
// This is the updater side handler for ui_print() in edify script. Contents
// will be sent over to the recovery side for on-screen display.
-Value* UIPrintFn(const char* name, State* state, int argc, Expr* argv[]) {
- char** args = ReadVarArgs(state, argc, argv);
- if (args == NULL) {
- return NULL;
- }
+Value* UIPrintFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
- std::string buffer;
- for (int i = 0; i < argc; ++i) {
- buffer += args[i];
- free(args[i]);
- }
- free(args);
-
- buffer += "\n";
- uiPrint(state, buffer);
- return StringValue(strdup(buffer.c_str()));
+ std::string buffer = android::base::Join(args, "") + "\n";
+ uiPrint(state, buffer);
+ return StringValue(buffer);
}
-Value* WipeCacheFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 0) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %d", name, argc);
- }
- fprintf(((UpdaterInfo*)(state->cookie))->cmd_pipe, "wipe_cache\n");
- return StringValue(strdup("t"));
+Value* WipeCacheFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (!argv.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %zu", name,
+ argv.size());
+ }
+ fprintf(static_cast<UpdaterInfo*>(state->cookie)->cmd_pipe, "wipe_cache\n");
+ return StringValue("t");
}
-Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc < 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
+Value* RunProgramFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() < 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
+ }
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+
+ char* args2[argv.size() + 1];
+ for (size_t i = 0; i < argv.size(); i++) {
+ args2[i] = &args[i][0];
+ }
+ args2[argv.size()] = nullptr;
+
+ LOG(INFO) << "about to run program [" << args2[0] << "] with " << argv.size() << " args";
+
+ pid_t child = fork();
+ if (child == 0) {
+ execv(args2[0], args2);
+ PLOG(ERROR) << "run_program: execv failed";
+ _exit(EXIT_FAILURE);
+ }
+
+ int status;
+ waitpid(child, &status, 0);
+ if (WIFEXITED(status)) {
+ if (WEXITSTATUS(status) != 0) {
+ LOG(ERROR) << "run_program: child exited with status " << WEXITSTATUS(status);
}
- char** args = ReadVarArgs(state, argc, argv);
- if (args == NULL) {
- return NULL;
- }
+ } else if (WIFSIGNALED(status)) {
+ LOG(ERROR) << "run_program: child terminated by signal " << WTERMSIG(status);
+ }
- char** args2 = reinterpret_cast<char**>(malloc(sizeof(char*) * (argc+1)));
- memcpy(args2, args, sizeof(char*) * argc);
- args2[argc] = NULL;
-
- printf("about to run program [%s] with %d args\n", args2[0], argc);
-
- pid_t child = fork();
- if (child == 0) {
- execv(args2[0], args2);
- printf("run_program: execv failed: %s\n", strerror(errno));
- _exit(1);
- }
- int status;
- waitpid(child, &status, 0);
- if (WIFEXITED(status)) {
- if (WEXITSTATUS(status) != 0) {
- printf("run_program: child exited with status %d\n",
- WEXITSTATUS(status));
- }
- } else if (WIFSIGNALED(status)) {
- printf("run_program: child terminated by signal %d\n",
- WTERMSIG(status));
- }
-
- int i;
- for (i = 0; i < argc; ++i) {
- free(args[i]);
- }
- free(args);
- free(args2);
-
- char buffer[20];
- sprintf(buffer, "%d", status);
-
- return StringValue(strdup(buffer));
+ return StringValue(std::to_string(status));
}
// sha1_check(data)
@@ -1358,104 +780,92 @@
// returns the sha1 of the file if it matches any of the hex
// strings passed, or "" if it does not equal any of them.
//
-Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc < 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
- }
+Value* Sha1CheckFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() < 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
+ }
- std::unique_ptr<Value*, decltype(&free)> arg_values(ReadValueVarArgs(state, argc, argv), free);
- if (arg_values == nullptr) {
- return nullptr;
- }
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> args;
- for (int i = 0; i < argc; ++i) {
- args.emplace_back(arg_values.get()[i], FreeValue);
- }
+ std::vector<std::unique_ptr<Value>> args;
+ if (!ReadValueArgs(state, argv, &args)) {
+ return nullptr;
+ }
- if (args[0]->size < 0) {
- return StringValue(strdup(""));
- }
- uint8_t digest[SHA_DIGEST_LENGTH];
- SHA1(reinterpret_cast<uint8_t*>(args[0]->data), args[0]->size, digest);
+ if (args[0]->type == VAL_INVALID) {
+ return StringValue("");
+ }
+ uint8_t digest[SHA_DIGEST_LENGTH];
+ SHA1(reinterpret_cast<const uint8_t*>(args[0]->data.c_str()), args[0]->data.size(), digest);
- if (argc == 1) {
- return StringValue(PrintSha1(digest));
- }
+ if (argv.size() == 1) {
+ return StringValue(print_sha1(digest));
+ }
- int i;
+ for (size_t i = 1; i < argv.size(); ++i) {
uint8_t arg_digest[SHA_DIGEST_LENGTH];
- for (i = 1; i < argc; ++i) {
- if (args[i]->type != VAL_STRING) {
- printf("%s(): arg %d is not a string; skipping",
- name, i);
- } else if (ParseSha1(args[i]->data, arg_digest) != 0) {
- // Warn about bad args and skip them.
- printf("%s(): error parsing \"%s\" as sha-1; skipping",
- name, args[i]->data);
- } else if (memcmp(digest, arg_digest, SHA_DIGEST_LENGTH) == 0) {
- break;
- }
+ if (args[i]->type != VAL_STRING) {
+ LOG(ERROR) << name << "(): arg " << i << " is not a string; skipping";
+ } else if (ParseSha1(args[i]->data.c_str(), arg_digest) != 0) {
+ // Warn about bad args and skip them.
+ LOG(ERROR) << name << "(): error parsing \"" << args[i]->data << "\" as sha-1; skipping";
+ } else if (memcmp(digest, arg_digest, SHA_DIGEST_LENGTH) == 0) {
+ // Found a match.
+ return args[i].release();
}
- if (i >= argc) {
- // Didn't match any of the hex strings; return false.
- return StringValue(strdup(""));
- }
- // Found a match.
- return args[i].release();
+ }
+
+ // Didn't match any of the hex strings; return false.
+ return StringValue("");
}
// Read a local file and return its contents (the Value* returned
// is actually a FileContents*).
-Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
- }
- char* filename;
- if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
+Value* ReadFileFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
+ }
- Value* v = static_cast<Value*>(malloc(sizeof(Value)));
- if (v == nullptr) {
- return nullptr;
- }
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
+
+ Value* v = new Value(VAL_INVALID, "");
+
+ FileContents fc;
+ if (LoadFileContents(filename.c_str(), &fc) == 0) {
v->type = VAL_BLOB;
- v->size = -1;
- v->data = nullptr;
-
- FileContents fc;
- if (LoadFileContents(filename, &fc) == 0) {
- v->data = static_cast<char*>(malloc(fc.data.size()));
- if (v->data != nullptr) {
- memcpy(v->data, fc.data.data(), fc.data.size());
- v->size = fc.data.size();
- }
- }
- free(filename);
- return v;
+ v->data = std::string(fc.data.begin(), fc.data.end());
+ }
+ return v;
}
// write_value(value, filename)
// Writes 'value' to 'filename'.
// Example: write_value("960000", "/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq")
-Value* WriteValueFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
+Value* WriteValueFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
+ argv.size());
+ }
- char* value;
- char* filename;
- if (ReadArgs(state, argv, 2, &value, &filename) < 0) {
- return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)",
- name);
- }
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
+ }
- bool ret = android::base::WriteStringToFile(value, filename);
- if (!ret) {
- printf("%s: Failed to write to \"%s\": %s\n", name, filename, strerror(errno));
- }
+ const std::string& filename = args[1];
+ if (filename.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): Filename cannot be empty", name);
+ }
- free(value);
- free(filename);
- return StringValue(strdup(ret ? "t" : ""));
+ const std::string& value = args[0];
+ if (!android::base::WriteStringToFile(value, filename)) {
+ PLOG(ERROR) << name << ": Failed to write to \"" << filename << "\"";
+ return StringValue("");
+ } else {
+ return StringValue("t");
+ }
}
// Immediately reboot the device. Recovery is not finished normally,
@@ -1467,37 +877,40 @@
// property. It can be "recovery" to boot from the recovery
// partition, or "" (empty string) to boot from the regular boot
// partition.
-Value* RebootNowFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
+Value* RebootNowFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
+ argv.size());
+ }
- char* filename;
- char* property;
- if (ReadArgs(state, argv, 2, &filename, &property) < 0) return NULL;
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s(): Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
+ const std::string& property = args[1];
- char buffer[80];
+ // Zero out the 'command' field of the bootloader message. Leave the rest intact.
+ bootloader_message boot;
+ std::string err;
+ if (!read_bootloader_message_from(&boot, filename, &err)) {
+ LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err;
+ return StringValue("");
+ }
+ memset(boot.command, 0, sizeof(boot.command));
+ if (!write_bootloader_message_to(boot, filename, &err)) {
+ LOG(ERROR) << name << "(): Failed to write to \"" << filename << "\": " << err;
+ return StringValue("");
+ }
- // zero out the 'command' field of the bootloader message.
- memset(buffer, 0, sizeof(((struct bootloader_message*)0)->command));
- FILE* f = fopen(filename, "r+b");
- fseek(f, offsetof(struct bootloader_message, command), SEEK_SET);
- fseek(f, BOOTLOADER_MESSAGE_OFFSET_IN_MISC, SEEK_CUR);
- ota_fwrite(buffer, sizeof(((struct bootloader_message*)0)->command), 1, f);
- fclose(f);
- free(filename);
+ std::string reboot_cmd = "reboot," + property;
+ if (android::base::GetBoolProperty("ro.boot.quiescent", false)) {
+ reboot_cmd += ",quiescent";
+ }
+ android::base::SetProperty(ANDROID_RB_PROPERTY, reboot_cmd);
- strcpy(buffer, "reboot,");
- if (property != NULL) {
- strncat(buffer, property, sizeof(buffer)-10);
- }
-
- property_set(ANDROID_RB_PROPERTY, buffer);
-
- sleep(5);
- free(property);
- ErrorAbort(state, kRebootFailure, "%s() failed to reboot", name);
- return NULL;
+ sleep(5);
+ return ErrorAbort(state, kRebootFailure, "%s() failed to reboot", name);
}
// Store a string value somewhere that future invocations of recovery
@@ -1510,172 +923,161 @@
// ("/misc" in the fstab), which is where this value is stored. The
// second argument is the string to store; it should not exceed 31
// bytes.
-Value* SetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
+Value* SetStageFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
+ argv.size());
+ }
- char* filename;
- char* stagestr;
- if (ReadArgs(state, argv, 2, &filename, &stagestr) < 0) return NULL;
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
+ const std::string& stagestr = args[1];
- // Store this value in the misc partition, immediately after the
- // bootloader message that the main recovery uses to save its
- // arguments in case of the device restarting midway through
- // package installation.
- FILE* f = fopen(filename, "r+b");
- fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
- fseek(f, BOOTLOADER_MESSAGE_OFFSET_IN_MISC, SEEK_CUR);
- int to_write = strlen(stagestr)+1;
- int max_size = sizeof(((struct bootloader_message*)0)->stage);
- if (to_write > max_size) {
- to_write = max_size;
- stagestr[max_size-1] = 0;
- }
- ota_fwrite(stagestr, to_write, 1, f);
- fclose(f);
+ // Store this value in the misc partition, immediately after the
+ // bootloader message that the main recovery uses to save its
+ // arguments in case of the device restarting midway through
+ // package installation.
+ bootloader_message boot;
+ std::string err;
+ if (!read_bootloader_message_from(&boot, filename, &err)) {
+ LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err;
+ return StringValue("");
+ }
+ strlcpy(boot.stage, stagestr.c_str(), sizeof(boot.stage));
+ if (!write_bootloader_message_to(boot, filename, &err)) {
+ LOG(ERROR) << name << "(): Failed to write to \"" << filename << "\": " << err;
+ return StringValue("");
+ }
- free(stagestr);
- return StringValue(filename);
+ return StringValue(filename);
}
// Return the value most recently saved with SetStageFn. The argument
// is the block device for the misc partition.
-Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 1) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
- }
+Value* GetStageFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 1) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %zu", name, argv.size());
+ }
- char* filename;
- if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
- char buffer[sizeof(((struct bootloader_message*)0)->stage)];
- FILE* f = fopen(filename, "rb");
- fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
- fseek(f, BOOTLOADER_MESSAGE_OFFSET_IN_MISC, SEEK_CUR);
- ota_fread(buffer, sizeof(buffer), 1, f);
- fclose(f);
- buffer[sizeof(buffer)-1] = '\0';
+ bootloader_message boot;
+ std::string err;
+ if (!read_bootloader_message_from(&boot, filename, &err)) {
+ LOG(ERROR) << name << "(): Failed to read from \"" << filename << "\": " << err;
+ return StringValue("");
+ }
- return StringValue(strdup(buffer));
+ return StringValue(boot.stage);
}
-Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
+Value* WipeBlockDeviceFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (argv.size() != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %zu", name,
+ argv.size());
+ }
- char* filename;
- char* len_str;
- if (ReadArgs(state, argv, 2, &filename, &len_str) < 0) return NULL;
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
+ const std::string& len_str = args[1];
- size_t len;
- android::base::ParseUint(len_str, &len);
- int fd = ota_open(filename, O_WRONLY, 0644);
- int success = wipe_block_device(fd, len);
-
- free(filename);
- free(len_str);
-
- ota_close(fd);
-
- return StringValue(strdup(success ? "t" : ""));
+ size_t len;
+ if (!android::base::ParseUint(len_str.c_str(), &len)) {
+ return nullptr;
+ }
+ unique_fd fd(ota_open(filename.c_str(), O_WRONLY, 0644));
+ // The wipe_block_device function in ext4_utils returns 0 on success and 1
+ // for failure.
+ int status = wipe_block_device(fd, len);
+ return StringValue((status == 0) ? "t" : "");
}
-Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 0) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %d", name, argc);
- }
- UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
- fprintf(ui->cmd_pipe, "enable_reboot\n");
- return StringValue(strdup("t"));
+Value* EnableRebootFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
+ if (!argv.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %zu", name,
+ argv.size());
+ }
+ UpdaterInfo* ui = static_cast<UpdaterInfo*>(state->cookie);
+ fprintf(ui->cmd_pipe, "enable_reboot\n");
+ return StringValue("t");
}
-Value* Tune2FsFn(const char* name, State* state, int argc, Expr* argv[]) {
+Value* Tune2FsFn(const char* name, State* state, const std::vector<std::unique_ptr<Expr>>& argv) {
#ifdef HAVE_LIBTUNE2FS
- if (argc == 0) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects args, got %d", name, argc);
- }
+ if (argv.empty()) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects args, got %zu", name, argv.size());
+ }
- char** args = ReadVarArgs(state, argc, argv);
- if (args == NULL) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() could not read args", name);
- }
+ std::vector<std::string> args;
+ if (!ReadArgs(state, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() could not read args", name);
+ }
- char** args2 = reinterpret_cast<char**>(malloc(sizeof(char*) * (argc+1)));
- // Tune2fs expects the program name as its args[0]
- args2[0] = strdup(name);
- for (int i = 0; i < argc; ++i) {
- args2[i + 1] = args[i];
- }
- int result = tune2fs_main(argc + 1, args2);
- for (int i = 0; i < argc; ++i) {
- free(args[i]);
- }
- free(args);
+ char* args2[argv.size() + 1];
+ // Tune2fs expects the program name as its args[0]
+ args2[0] = const_cast<char*>(name);
+ if (args2[0] == nullptr) {
+ return nullptr;
+ }
+ for (size_t i = 0; i < argv.size(); ++i) {
+ args2[i + 1] = &args[i][0];
+ }
- free(args2[0]);
- free(args2);
- if (result != 0) {
- return ErrorAbort(state, kTune2FsFailure, "%s() returned error code %d",
- name, result);
- }
- return StringValue(strdup("t"));
+ // tune2fs changes the file system parameters on an ext2 file system; it
+ // returns 0 on success.
+ int result = tune2fs_main(argv.size() + 1, args2);
+ if (result != 0) {
+ return ErrorAbort(state, kTune2FsFailure, "%s() returned error code %d", name, result);
+ }
+ return StringValue("t");
#else
- return ErrorAbort(state, "%s() support not present, no libtune2fs", name);
+ return ErrorAbort(state, kTune2FsFailure, "%s() support not present, no libtune2fs", name);
#endif // HAVE_LIBTUNE2FS
}
void RegisterInstallFunctions() {
- RegisterFunction("mount", MountFn);
- RegisterFunction("is_mounted", IsMountedFn);
- RegisterFunction("unmount", UnmountFn);
- RegisterFunction("format", FormatFn);
- RegisterFunction("show_progress", ShowProgressFn);
- RegisterFunction("set_progress", SetProgressFn);
- RegisterFunction("delete", DeleteFn);
- RegisterFunction("delete_recursive", DeleteFn);
- RegisterFunction("package_extract_dir", PackageExtractDirFn);
- RegisterFunction("package_extract_file", PackageExtractFileFn);
- RegisterFunction("symlink", SymlinkFn);
+ RegisterFunction("mount", MountFn);
+ RegisterFunction("is_mounted", IsMountedFn);
+ RegisterFunction("unmount", UnmountFn);
+ RegisterFunction("format", FormatFn);
+ RegisterFunction("show_progress", ShowProgressFn);
+ RegisterFunction("set_progress", SetProgressFn);
+ RegisterFunction("package_extract_dir", PackageExtractDirFn);
+ RegisterFunction("package_extract_file", PackageExtractFileFn);
- // Usage:
- // set_metadata("filename", "key1", "value1", "key2", "value2", ...)
- // Example:
- // set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
- RegisterFunction("set_metadata", SetMetadataFn);
+ RegisterFunction("getprop", GetPropFn);
+ RegisterFunction("file_getprop", FileGetPropFn);
- // Usage:
- // set_metadata_recursive("dirname", "key1", "value1", "key2", "value2", ...)
- // Example:
- // set_metadata_recursive("/system", "uid", 0, "gid", 0, "fmode", 0644, "dmode", 0755, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
- RegisterFunction("set_metadata_recursive", SetMetadataFn);
+ RegisterFunction("apply_patch", ApplyPatchFn);
+ RegisterFunction("apply_patch_check", ApplyPatchCheckFn);
+ RegisterFunction("apply_patch_space", ApplyPatchSpaceFn);
- RegisterFunction("getprop", GetPropFn);
- RegisterFunction("file_getprop", FileGetPropFn);
- RegisterFunction("write_raw_image", WriteRawImageFn);
+ RegisterFunction("wipe_block_device", WipeBlockDeviceFn);
- RegisterFunction("apply_patch", ApplyPatchFn);
- RegisterFunction("apply_patch_check", ApplyPatchCheckFn);
- RegisterFunction("apply_patch_space", ApplyPatchSpaceFn);
+ RegisterFunction("read_file", ReadFileFn);
+ RegisterFunction("sha1_check", Sha1CheckFn);
+ RegisterFunction("write_value", WriteValueFn);
- RegisterFunction("wipe_block_device", WipeBlockDeviceFn);
+ RegisterFunction("wipe_cache", WipeCacheFn);
- RegisterFunction("read_file", ReadFileFn);
- RegisterFunction("sha1_check", Sha1CheckFn);
- RegisterFunction("rename", RenameFn);
- RegisterFunction("write_value", WriteValueFn);
+ RegisterFunction("ui_print", UIPrintFn);
- RegisterFunction("wipe_cache", WipeCacheFn);
+ RegisterFunction("run_program", RunProgramFn);
- RegisterFunction("ui_print", UIPrintFn);
+ RegisterFunction("reboot_now", RebootNowFn);
+ RegisterFunction("get_stage", GetStageFn);
+ RegisterFunction("set_stage", SetStageFn);
- RegisterFunction("run_program", RunProgramFn);
-
- RegisterFunction("reboot_now", RebootNowFn);
- RegisterFunction("get_stage", GetStageFn);
- RegisterFunction("set_stage", SetStageFn);
-
- RegisterFunction("enable_reboot", EnableRebootFn);
- RegisterFunction("tune2fs", Tune2FsFn);
+ RegisterFunction("enable_reboot", EnableRebootFn);
+ RegisterFunction("tune2fs", Tune2FsFn);
}