diff options
Diffstat (limited to 'roots.cpp')
| -rw-r--r-- | roots.cpp | 37 |
1 files changed, 34 insertions, 3 deletions
@@ -21,6 +21,7 @@ #include <sys/types.h> #include <unistd.h> #include <ctype.h> +#include <fcntl.h> #include <fs_mgr.h> #include "mtdutils/mtdutils.h" @@ -28,6 +29,10 @@ #include "roots.h" #include "common.h" #include "make_ext4fs.h" +extern "C" { +#include "wipe.h" +#include "cryptfs.h" +} static struct fstab *fstab = NULL; @@ -191,11 +196,31 @@ int format_volume(const char* volume) { } if (strcmp(v->fs_type, "ext4") == 0) { - int result = make_ext4fs(v->blk_device, v->length, volume, sehandle); + ssize_t length = 0; + if (v->length != 0) { + length = v->length; + } else if (v->key_loc != NULL && strcmp(v->key_loc, "footer") == 0) { + length = -CRYPT_FOOTER_OFFSET; + } + int result = make_ext4fs(v->blk_device, length, volume, sehandle); if (result != 0) { LOGE("format_volume: make_extf4fs failed on %s\n", v->blk_device); return -1; } + + // if there's a key_loc that looks like a path, it should be a + // block device for storing encryption metadata. wipe it too. + if (v->key_loc != NULL && v->key_loc[0] == '/') { + LOGI("wiping %s\n", v->key_loc); + int fd = open(v->key_loc, O_WRONLY | O_CREAT, 0644); + if (fd < 0) { + LOGE("format_volume: failed to open %s\n", v->key_loc); + return -1; + } + wipe_block_device(fd, get_file_size(fd)); + close(fd); + } + return 0; } @@ -213,10 +238,16 @@ int setup_install_mounts() { if (strcmp(v->mount_point, "/tmp") == 0 || strcmp(v->mount_point, "/cache") == 0) { - if (ensure_path_mounted(v->mount_point) != 0) return -1; + if (ensure_path_mounted(v->mount_point) != 0) { + LOGE("failed to mount %s\n", v->mount_point); + return -1; + } } else { - if (ensure_path_unmounted(v->mount_point) != 0) return -1; + if (ensure_path_unmounted(v->mount_point) != 0) { + LOGE("failed to unmount %s\n", v->mount_point); + return -1; + } } } return 0; |