diff options
Diffstat (limited to 'cmds/idmap/idmap.cpp')
| -rw-r--r-- | cmds/idmap/idmap.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/cmds/idmap/idmap.cpp b/cmds/idmap/idmap.cpp index d388977e8e2f..3ab191553625 100644 --- a/cmds/idmap/idmap.cpp +++ b/cmds/idmap/idmap.cpp @@ -13,6 +13,8 @@ SYNOPSIS \n\ idmap --help \n\ idmap --fd target overlay fd \n\ idmap --path target overlay idmap \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\ \n\ DESCRIPTION \n\ @@ -47,6 +49,11 @@ OPTIONS \n\ --path: create idmap for target package 'target' (path to apk) and overlay package \n\ 'overlay' (path to apk); write results to 'idmap' (path). \n\ \n\ + --scan: non-recursively search directory 'dir-to-scan' (path) for overlay packages with \n\ + target package 'target-package-name-to-look-for' (package name) present at\n\ + 'path-to-target-apk' (path to apk). For each overlay package found, create an\n\ + idmap file in 'dir-to-hold-idmaps' (path). \n\ +\n\ --inspect: decode the binary format of 'idmap' (path) and display the contents in a \n\ debug-friendly format. \n\ \n\ @@ -90,6 +97,16 @@ EXAMPLES \n\ NOTES \n\ This tool and its expected invocation from installd is modelled on dexopt."; + bool verify_directory_readable(const char *path) + { + return access(path, R_OK | X_OK) == 0; + } + + bool verify_directory_writable(const char *path) + { + return access(path, W_OK) == 0; + } + bool verify_file_readable(const char *path) { return access(path, R_OK) == 0; @@ -150,6 +167,36 @@ NOTES \n\ return idmap_create_path(target_apk_path, overlay_apk_path, idmap_path); } + int maybe_scan(const char *target_package_name, const char *target_apk_path, + const char *idmap_dir, const android::Vector<const char *> *overlay_dirs) + { + if (!verify_root_or_system()) { + fprintf(stderr, "error: permission denied: not user root or user system\n"); + 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_directory_writable(idmap_dir)) { + ALOGD("error: no write access to %s: %s\n", idmap_dir, strerror(errno)); + return -1; + } + + const size_t N = overlay_dirs->size(); + for (size_t i = 0; i < N; i++) { + const char *dir = overlay_dirs->itemAt(i); + if (!verify_directory_readable(dir)) { + ALOGD("error: no read access to %s: %s\n", dir, strerror(errno)); + return -1; + } + } + + return idmap_scan(target_package_name, target_apk_path, idmap_dir, overlay_dirs); + } + int maybe_inspect(const char *idmap_path) { // anyone (not just root or system) may do --inspect @@ -188,6 +235,14 @@ int main(int argc, char **argv) return maybe_create_path(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++) { + v.push(argv[i]); + } + return maybe_scan(argv[2], argv[3], argv[4], &v); + } + if (argc == 3 && !strcmp(argv[1], "--inspect")) { return maybe_inspect(argv[2]); } |