diff options
Diffstat (limited to 'init/builtins.c')
| -rw-r--r-- | init/builtins.c | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/init/builtins.c b/init/builtins.c index c474198..6032184 100644 --- a/init/builtins.c +++ b/init/builtins.c @@ -473,6 +473,26 @@ exit_success: } +static int wipe_data_via_recovery() +{ + mkdir("/cache/recovery", 0700); + int fd = open("/cache/recovery/command", O_RDWR|O_CREAT|O_TRUNC, 0600); + if (fd >= 0) { + write(fd, "--wipe_data", strlen("--wipe_data") + 1); + close(fd); + } else { + ERROR("could not open /cache/recovery/command\n"); + return -1; + } + android_reboot(ANDROID_RB_RESTART2, 0, "recovery"); + while (1) { pause(); } // never reached +} + + +/* + * This function might request a reboot, in which case it will + * not return. + */ int do_mount_all(int nargs, char **args) { pid_t pid; @@ -510,23 +530,33 @@ int do_mount_all(int nargs, char **args) if (child_ret == -1) { ERROR("fs_mgr_mount_all returned an error\n"); } - exit(child_ret); + _exit(child_ret); } else { /* fork failed, return an error */ return -1; } - /* ret is 1 if the device is encrypted, 0 if not, and -1 on error */ - if (ret == 1) { + if (ret == FS_MGR_MNTALL_DEV_NEEDS_ENCRYPTION) { + property_set("ro.crypto.state", "unencrypted"); + property_set("vold.decrypt", "trigger_encryption"); + } else if (ret == FS_MGR_MNTALL_DEV_MIGHT_BE_ENCRYPTED) { property_set("ro.crypto.state", "encrypted"); - property_set("vold.decrypt", "1"); - } else if (ret == 0) { + property_set("vold.decrypt", "trigger_default_encryption"); + } else if (ret == FS_MGR_MNTALL_DEV_NOT_ENCRYPTED) { property_set("ro.crypto.state", "unencrypted"); /* If fs_mgr determined this is an unencrypted device, then trigger * that action. */ action_for_each_trigger("nonencrypted", action_add_queue_tail); - } + } else if (ret == FS_MGR_MNTALL_DEV_NEEDS_RECOVERY) { + /* Setup a wipe via recovery, and reboot into recovery */ + ERROR("fs_mgr_mount_all suggested recovery, so wiping data via recovery.\n"); + ret = wipe_data_via_recovery(); + /* If reboot worked, there is no return. */ + } else if (ret > 0) { + ERROR("fs_mgr_mount_all returned unexpected error %d\n", ret); + } + /* else ... < 0: error */ return ret; } |