Merge "Add a function to verify if idmap is made from given target/overlay packages" into oc-dev (a941e29c) · Commits · e / os / android_frameworks_base

cmds/idmap/create.cpp

+6 −0

Original line number	Diff line number	Diff line
		@@ -221,3 +221,9 @@ int idmap_create_fd(const char target_apk_path, const char overlay_apk_path, i
		return create_and_write_idmap(target_apk_path, overlay_apk_path, fd, true) == 0 ?
		EXIT_SUCCESS : EXIT_FAILURE;
		}

		int idmap_verify_fd(const char target_apk_path, const char overlay_apk_path, int fd)
		{
		return !is_idmap_stale_fd(target_apk_path, overlay_apk_path, fd) ?
		EXIT_SUCCESS : EXIT_FAILURE;
		}

cmds/idmap/idmap.cpp

+31 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@ SYNOPSIS \n\
		idmap --scan target-package-name-to-look-for path-to-target-apk dir-to-hold-idmaps \\\
		dir-to-scan [additional-dir-to-scan [additional-dir-to-scan [...]]]\n\
		idmap --inspect idmap \n\
		idmap --verify target overlay fd \n\
		\n\
		DESCRIPTION \n\
		Idmap files play an integral part in the runtime resource overlay framework. An idmap \n\
		@@ -56,6 +57,9 @@ OPTIONS \n\
		\n\
		--inspect: decode the binary format of 'idmap' (path) and display the contents in a \n\
		debug-friendly format. \n\
		\n\
		--verify: verify if idmap corresponding to file descriptor 'fd' (integer) is made from \n\
		target package 'target' (path to apk) and overlay package 'overlay'. \n\
		\n\
		EXAMPLES \n\
		Create an idmap file: \n\
		@@ -167,6 +171,29 @@ NOTES \n\
		return idmap_create_path(target_apk_path, overlay_apk_path, idmap_path);
		}

		int maybe_verify_fd(const char target_apk_path, const char overlay_apk_path,
		const char *idmap_str)
		{
		char *endptr;
		int idmap_fd = strtol(idmap_str, &endptr, 10);
		if (*endptr != '\0') {
		fprintf(stderr, "error: failed to parse file descriptor argument %s\n", idmap_str);
		return -1;
		}

		if (!verify_file_readable(target_apk_path)) {
		ALOGD("error: failed to read apk %s: %s\n", target_apk_path, strerror(errno));
		return -1;
		}

		if (!verify_file_readable(overlay_apk_path)) {
		ALOGD("error: failed to read apk %s: %s\n", overlay_apk_path, strerror(errno));
		return -1;
		}

		return idmap_verify_fd(target_apk_path, overlay_apk_path, idmap_fd);
		}

		int maybe_scan(const char target_package_name, const char target_apk_path,
		const char idmap_dir, const android::Vector<const char > *overlay_dirs)
		{
		@@ -235,6 +262,10 @@ int main(int argc, char **argv)
		return maybe_create_path(argv[2], argv[3], argv[4]);
		}

		if (argc == 5 && !strcmp(argv[1], "--verify")) {
		return maybe_verify_fd(argv[2], argv[3], argv[4]);
		}

		if (argc >= 6 && !strcmp(argv[1], "--scan")) {
		android::Vector<const char *> v;
		for (int i = 5; i < argc; i++) {

cmds/idmap/idmap.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,8 @@ int idmap_create_path(const char target_apk_path, const char overlay_apk_path,

		int idmap_create_fd(const char target_apk_path, const char overlay_apk_path, int fd);

		int idmap_verify_fd(const char target_apk_path, const char overlay_apk_path, int fd);

		// Regarding target_package_name: the idmap_scan implementation should
		// be able to extract this from the manifest in target_apk_path,
		// simplifying the external API.