save a last_install file with the result of the last package install attempt

When installing a package, create /cache/recovery/last_install, which
contains the filename of the package and a 1 or 0 for success or
failure.

Also, don't mount ext4 and vfat filesystems as read-only (on devices
where /cache is ext4, we need it to be read-write).

Change-Id: I0cf2a1921bbd65e06343aa74e2006577fac77c2c
This commit is contained in:
Doug Zongker 2011-04-12 09:28:10 -07:00
parent 3ed8e18721
commit 469243e536
4 changed files with 30 additions and 6 deletions

View File

@ -126,4 +126,7 @@ typedef struct {
} UIParameters;
// fopen a file, mounting volumes and making parent dirs as necessary.
FILE* fopen_path(const char *path, const char *mode);
#endif // RECOVERY_COMMON_H

View File

@ -36,6 +36,8 @@
#define ASSUMED_UPDATE_BINARY_NAME "META-INF/com/google/android/update-binary"
#define PUBLIC_KEYS_FILE "/res/keys"
static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
// If the package contains an update binary, extract it and run it.
static int
try_update_binary(const char *path, ZipArchive *zip) {
@ -233,8 +235,8 @@ exit:
return NULL;
}
int
install_package(const char *path)
static int
really_install_package(const char *path)
{
ui_set_background(BACKGROUND_ICON_INSTALLING);
ui_print("Finding update package...\n");
@ -285,3 +287,23 @@ install_package(const char *path)
ui_print("Installing update...\n");
return try_update_binary(path, &zip);
}
int
install_package(const char* path)
{
FILE* install_log = fopen_path(LAST_INSTALL_FILE, "w");
if (install_log) {
fputs(path, install_log);
fputc('\n', install_log);
} else {
LOGE("failed to open last_install: %s\n", strerror(errno));
}
int result = really_install_package(path);
if (install_log) {
fputc(result == INSTALL_SUCCESS ? '1' : '0', install_log);
fputc('\n', install_log);
fclose(install_log);
chmod(LAST_INSTALL_FILE, 0644);
}
return result;
}

View File

@ -120,7 +120,7 @@ static const int MAX_ARG_LENGTH = 4096;
static const int MAX_ARGS = 100;
// open a given path, mounting partitions as necessary
static FILE*
FILE*
fopen_path(const char *path, const char *mode) {
if (ensure_path_mounted(path) != 0) {
LOGE("Can't mount %s\n", path);

View File

@ -177,15 +177,14 @@ int ensure_path_mounted(const char* path) {
} else if (strcmp(v->fs_type, "ext4") == 0 ||
strcmp(v->fs_type, "vfat") == 0) {
result = mount(v->device, v->mount_point, v->fs_type,
MS_NOATIME | MS_NODEV | MS_NODIRATIME | MS_RDONLY, "");
MS_NOATIME | MS_NODEV | MS_NODIRATIME, "");
if (result == 0) return 0;
if (v->device2) {
LOGW("failed to mount %s (%s); trying %s\n",
v->device, strerror(errno), v->device2);
result = mount(v->device2, v->mount_point, v->fs_type,
MS_NOATIME | MS_NODEV |
MS_NODIRATIME | MS_RDONLY, "");
MS_NOATIME | MS_NODEV | MS_NODIRATIME, "");
if (result == 0) return 0;
}