X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=lib%2Fsetup.c;h=ee9e9ad4dbcc99277f4b4b82141fb10d6c023449;hb=a14a2137e7e0ad5fb6383d2c1d9188786d09ee01;hp=c93db0a2d7f2387137aeb69ee3782854236403bf;hpb=1cbc53e8ee91adc18421074491864dccff8360d7;p=platform%2Fupstream%2Fcryptsetup.git diff --git a/lib/setup.c b/lib/setup.c index c93db0a..ee9e9ad 100644 --- a/lib/setup.c +++ b/lib/setup.c @@ -35,10 +35,9 @@ struct crypt_device { char *type; - char *device; - char *metadata_device; + struct device *device; + struct device *metadata_device; - int loop_fd; struct volume_key *volume_key; uint64_t timeout; uint64_t iteration_time; @@ -67,7 +66,7 @@ struct crypt_device { /* used in CRYPT_VERITY */ struct crypt_params_verity verity_hdr; char *verity_root_hash; - uint64_t verity_root_hash_size; + unsigned int verity_root_hash_size; char *verity_uuid; /* callbacks definitions */ @@ -153,11 +152,22 @@ void logger(struct crypt_device *cd, int level, const char *file, free(target); } -static const char *mdata_device(struct crypt_device *cd) +static const char *mdata_device_path(struct crypt_device *cd) +{ + return device_path(cd->metadata_device ?: cd->device); +} + +/* internal only */ +struct device *crypt_metadata_device(struct crypt_device *cd) { return cd->metadata_device ?: cd->device; } +struct device *crypt_data_device(struct crypt_device *cd) +{ + return cd->device; +} + static int init_crypto(struct crypt_device *ctx) { int r; @@ -304,7 +314,7 @@ int PLAIN_activate(struct crypt_device *cd, .uuid = crypt_get_uuid(cd), .size = size, .flags = flags, - .data_device = crypt_get_device_name(cd), + .data_device = crypt_data_device(cd), .u.crypt = { .cipher = NULL, .vk = vk, @@ -318,8 +328,8 @@ int PLAIN_activate(struct crypt_device *cd, else device_check = DEV_EXCL; - r = device_check_and_adjust(cd, dmd.data_device, device_check, - &dmd.size, &dmd.u.crypt.offset, &dmd.flags); + r = device_block_adjust(cd, dmd.data_device, device_check, + dmd.u.crypt.offset, &dmd.size, &dmd.flags); if (r) return r; @@ -334,10 +344,10 @@ int PLAIN_activate(struct crypt_device *cd, log_dbg("Trying to activate PLAIN device %s using cipher %s.", name, dmd.u.crypt.cipher); - r = dm_create_device(name, CRYPT_PLAIN, &dmd, 0); + r = dm_create_device(cd, name, CRYPT_PLAIN, &dmd, 0); // FIXME - if (!cd->plain_uuid && dm_query_device(name, DM_ACTIVE_UUID, &dmd) >= 0) + if (!cd->plain_uuid && dm_query_device(cd, name, DM_ACTIVE_UUID, &dmd) >= 0) cd->plain_uuid = CONST_CAST(char*)dmd.uuid; free(dm_cipher); @@ -414,7 +424,7 @@ static int volume_key_by_terminal_passphrase(struct crypt_device *cd, int keyslo if(r < 0) goto out; - r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase_read, + r = LUKS_open_key_with_hdr(keyslot, passphrase_read, passphrase_size_read, &cd->hdr, vk, cd); if (r == -EPERM) eperm = 1; @@ -504,7 +514,7 @@ const char *crypt_get_dir(void) int crypt_init(struct crypt_device **cd, const char *device) { struct crypt_device *h = NULL; - int r, readonly = 0; + int r; if (!cd) return -EINVAL; @@ -515,48 +525,12 @@ int crypt_init(struct crypt_device **cd, const char *device) return -ENOMEM; memset(h, 0, sizeof(*h)); - h->loop_fd = -1; - - if (device) { - r = device_ready(NULL, device, O_RDONLY); - if (r == -ENOTBLK) { - h->device = crypt_loop_get_device(); - log_dbg("Not a block device, %s%s.", - h->device ? "using free loop device " : - "no free loop device found", - h->device ?: ""); - if (!h->device) { - log_err(NULL, _("Cannot find a free loopback device.\n")); - r = -ENOSYS; - goto bad; - } - - /* Keep the loop open, dettached on last close. */ - h->loop_fd = crypt_loop_attach(h->device, device, 0, 1, &readonly); - if (h->loop_fd == -1) { - log_err(NULL, _("Attaching loopback device failed " - "(loop device with autoclear flag is required).\n")); - r = -EINVAL; - goto bad; - } - r = device_ready(NULL, h->device, O_RDONLY); - } - if (r < 0) { - r = -ENOTBLK; - goto bad; - } - } - - if (!h->device && device && !(h->device = strdup(device))) { - r = -ENOMEM; + r = device_alloc(&h->device, device); + if (r < 0) goto bad; - } - if (dm_init(h, 1) < 0) { - r = -ENOSYS; - goto bad; - } + dm_backend_init(); h->iteration_time = 1000; h->password_verify = 0; @@ -565,12 +539,7 @@ int crypt_init(struct crypt_device **cd, const char *device) *cd = h; return 0; bad: - - if (h) { - if (h->loop_fd != -1) - close(h->loop_fd); - free(h->device); - } + device_free(h->device); free(h); return r; } @@ -583,13 +552,13 @@ static int crypt_check_data_device_size(struct crypt_device *cd) /* Check data device size, require at least one sector */ size_min = crypt_get_data_offset(cd) << SECTOR_SHIFT ?: SECTOR_SIZE; - r = device_size(crypt_get_device_name(cd), &size); + r = device_size(cd->device, &size); if (r < 0) return r; if (size < size_min) { - log_err(cd, _("LUKS header detected but device %s is too small.\n"), - crypt_get_device_name(cd)); + log_err(cd, _("Header detected but device %s is too small.\n"), + device_path(cd->device)); return -EINVAL; } @@ -598,7 +567,7 @@ static int crypt_check_data_device_size(struct crypt_device *cd) int crypt_set_data_device(struct crypt_device *cd, const char *device) { - char *data_device; + struct device *dev = NULL; int r; log_dbg("Setting ciphertext data device to %s.", device ?: "(none)"); @@ -612,19 +581,16 @@ int crypt_set_data_device(struct crypt_device *cd, const char *device) if (!cd->device || !device) return -EINVAL; - r = device_ready(NULL, device, O_RDONLY); + r = device_alloc(&dev, device); if (r < 0) return r; - if (!(data_device = strdup(device))) - return -ENOMEM; - - if (!cd->metadata_device) + if (!cd->metadata_device) { cd->metadata_device = cd->device; - else - free(cd->device); + } else + device_free(cd->device); - cd->device = data_device; + cd->device = dev; return crypt_check_data_device_size(cd); } @@ -638,7 +604,7 @@ static int _crypt_load_luks1(struct crypt_device *cd, int require_header, int re if (r < 0) return r; - r = LUKS_read_phdr(mdata_device(cd), &hdr, require_header, repair, cd); + r = LUKS_read_phdr(&hdr, require_header, repair, cd); if (r < 0) return r; @@ -659,29 +625,31 @@ static int _crypt_load_verity(struct crypt_device *cd, struct crypt_params_verit if (r < 0) return r; - if (params->flags & CRYPT_VERITY_NO_HEADER) + if (params && params->flags & CRYPT_VERITY_NO_HEADER) return -EINVAL; if (params) sb_offset = params->hash_area_offset; - r = VERITY_read_sb(cd, mdata_device(cd), sb_offset, - &cd->verity_uuid, &cd->verity_hdr); + r = VERITY_read_sb(cd, sb_offset, &cd->verity_uuid, &cd->verity_hdr); if (r < 0) return r; if (params) cd->verity_hdr.flags = params->flags; - if (params && params->data_device && - (r = crypt_set_data_device(cd, params->data_device)) < 0) - return r; - + /* Hash availability checked in sb load */ cd->verity_root_hash_size = crypt_hash_size(cd->verity_hdr.hash_name); + if (cd->verity_root_hash_size > 4096) + return -EINVAL; if (!cd->type && !(cd->type = strdup(CRYPT_VERITY))) return -ENOMEM; + if (params && params->data_device && + (r = crypt_set_data_device(cd, params->data_device)) < 0) + return r; + return r; } @@ -691,10 +659,11 @@ static int _init_by_name_crypt(struct crypt_device *cd, const char *name) char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN]; int key_nums, r; - r = dm_query_device(name, DM_ACTIVE_DEVICE | - DM_ACTIVE_UUID | - DM_ACTIVE_CRYPT_CIPHER | - DM_ACTIVE_CRYPT_KEYSIZE, &dmd); + r = dm_query_device(cd, name, + DM_ACTIVE_DEVICE | + DM_ACTIVE_UUID | + DM_ACTIVE_CRYPT_CIPHER | + DM_ACTIVE_CRYPT_KEYSIZE, &dmd); if (r < 0) goto out; @@ -725,7 +694,7 @@ static int _init_by_name_crypt(struct crypt_device *cd, const char *name) cd->loopaes_key_size = dmd.u.crypt.vk->keylength / key_nums; } } else if (isLUKS(cd->type)) { - if (mdata_device(cd)) { + if (crypt_metadata_device(cd)) { r = _crypt_load_luks1(cd, 0, 0); if (r < 0) { log_dbg("LUKS device header does not match active device."); @@ -748,8 +717,8 @@ static int _init_by_name_crypt(struct crypt_device *cd, const char *name) } out: crypt_free_volume_key(dmd.u.crypt.vk); + device_free(dmd.data_device); free(CONST_CAST(void*)dmd.u.crypt.cipher); - free(CONST_CAST(void*)dmd.data_device); free(CONST_CAST(void*)dmd.uuid); return r; } @@ -763,10 +732,11 @@ static int _init_by_name_verity(struct crypt_device *cd, const char *name) }; int r; - r = dm_query_device(name, DM_ACTIVE_DEVICE | - DM_ACTIVE_UUID | - DM_ACTIVE_VERITY_HASH_DEVICE | - DM_ACTIVE_VERITY_PARAMS, &dmd); + r = dm_query_device(cd, name, + DM_ACTIVE_DEVICE | + DM_ACTIVE_UUID | + DM_ACTIVE_VERITY_HASH_DEVICE | + DM_ACTIVE_VERITY_PARAMS, &dmd); if (r < 0) goto out; @@ -786,12 +756,10 @@ static int _init_by_name_verity(struct crypt_device *cd, const char *name) cd->verity_hdr.flags = params.flags; cd->verity_hdr.salt_size = params.salt_size; cd->verity_hdr.salt = params.salt; - if (!(cd->metadata_device = strdup(dmd.u.verity.hash_device))) - r = -ENOMEM; + cd->metadata_device = dmd.u.verity.hash_device; } out: - free(CONST_CAST(void*)dmd.u.verity.hash_device); - free(CONST_CAST(void*)dmd.data_device); + device_free(dmd.data_device); free(CONST_CAST(void*)dmd.uuid); return r; } @@ -815,7 +783,7 @@ int crypt_init_by_name_and_header(struct crypt_device **cd, return -ENODEV; } - r = dm_query_device(name, DM_ACTIVE_DEVICE | DM_ACTIVE_UUID, &dmd); + r = dm_query_device(NULL, name, DM_ACTIVE_DEVICE | DM_ACTIVE_UUID, &dmd); if (r < 0) goto out; @@ -824,7 +792,7 @@ int crypt_init_by_name_and_header(struct crypt_device **cd, if (header_device) { r = crypt_init(cd, header_device); } else { - r = crypt_init(cd, dmd.data_device); + r = crypt_init(cd, device_path(dmd.data_device)); /* Underlying device disappeared but mapping still active */ if (!dmd.data_device || r == -ENOTBLK) @@ -833,7 +801,7 @@ int crypt_init_by_name_and_header(struct crypt_device **cd, /* Underlying device is not readable but crypt mapping exists */ if (r == -ENOTBLK) { - free(CONST_CAST(void*)dmd.data_device); + device_free(dmd.data_device); dmd.data_device = NULL; r = crypt_init(cd, NULL); } @@ -857,7 +825,7 @@ int crypt_init_by_name_and_header(struct crypt_device **cd, log_dbg("Active device has no UUID set, some parameters are not set."); if (header_device) { - r = crypt_set_data_device(*cd, dmd.data_device); + r = crypt_set_data_device(*cd, device_path(dmd.data_device)); if (r < 0) goto out; } @@ -873,7 +841,7 @@ out: crypt_free(*cd); *cd = NULL; } - free(CONST_CAST(void*)dmd.data_device); + device_free(dmd.data_device); free(CONST_CAST(void*)dmd.uuid); return r; } @@ -900,6 +868,9 @@ static int _crypt_format_plain(struct crypt_device *cd, return -EINVAL; } + if (!(cd->type = strdup(CRYPT_PLAIN))) + return -ENOMEM; + cd->plain_key_size = volume_key_size; cd->volume_key = crypt_alloc_volume_key(volume_key_size, NULL); if (!cd->volume_key) @@ -936,11 +907,14 @@ static int _crypt_format_luks1(struct crypt_device *cd, unsigned long required_alignment = DEFAULT_DISK_ALIGNMENT; unsigned long alignment_offset = 0; - if (!mdata_device(cd)) { + if (!crypt_metadata_device(cd)) { log_err(cd, _("Can't format LUKS without device.\n")); return -EINVAL; } + if (!(cd->type = strdup(CRYPT_LUKS1))) + return -ENOMEM; + if (volume_key) cd->volume_key = crypt_alloc_volume_key(volume_key_size, volume_key); @@ -952,39 +926,50 @@ static int _crypt_format_luks1(struct crypt_device *cd, if (params && params->data_device) { cd->metadata_device = cd->device; - if (!(cd->device = strdup(params->data_device))) + cd->device = NULL; + if (device_alloc(&cd->device, params->data_device) < 0) return -ENOMEM; required_alignment = params->data_alignment * SECTOR_SIZE; } else if (params && params->data_alignment) { required_alignment = params->data_alignment * SECTOR_SIZE; } else - get_topology_alignment(cd->device, &required_alignment, + device_topology_alignment(cd->device, + &required_alignment, &alignment_offset, DEFAULT_DISK_ALIGNMENT); + /* Check early if we cannot allocate block device for key slot access */ + r = device_block_adjust(cd, cd->device, DEV_OK, 0, NULL, NULL); + if(r < 0) + return r; + r = LUKS_generate_phdr(&cd->hdr, cd->volume_key, cipher, cipher_mode, (params && params->hash) ? params->hash : "sha1", uuid, LUKS_STRIPES, required_alignment / SECTOR_SIZE, alignment_offset / SECTOR_SIZE, cd->iteration_time, &cd->PBKDF2_per_sec, - cd->metadata_device, cd); + cd->metadata_device ? 1 : 0, cd); if(r < 0) return r; /* Wipe first 8 sectors - fs magic numbers etc. */ - r = crypt_wipe(mdata_device(cd), 0, 8 * SECTOR_SIZE, CRYPT_WIPE_ZERO, 1); + r = crypt_wipe(crypt_metadata_device(cd), 0, 8 * SECTOR_SIZE, CRYPT_WIPE_ZERO, 1); if(r < 0) { if (r == -EBUSY) log_err(cd, _("Cannot format device %s which is still in use.\n"), - mdata_device(cd)); - else + mdata_device_path(cd)); + else if (r == -EACCES) { + log_err(cd, _("Cannot format device %s, permission denied.\n"), + mdata_device_path(cd)); + r = -EINVAL; + } else log_err(cd, _("Cannot wipe header on device %s.\n"), - mdata_device(cd)); + mdata_device_path(cd)); return r; } - r = LUKS_write_phdr(mdata_device(cd), &cd->hdr, cd); + r = LUKS_write_phdr(&cd->hdr, cd); return r; } @@ -995,7 +980,7 @@ static int _crypt_format_loopaes(struct crypt_device *cd, size_t volume_key_size, struct crypt_params_loopaes *params) { - if (!mdata_device(cd)) { + if (!crypt_metadata_device(cd)) { log_err(cd, _("Can't format LOOPAES without device.\n")); return -EINVAL; } @@ -1005,6 +990,9 @@ static int _crypt_format_loopaes(struct crypt_device *cd, return -EINVAL; } + if (!(cd->type = strdup(CRYPT_LOOPAES))) + return -ENOMEM; + cd->loopaes_key_size = volume_key_size; cd->loopaes_cipher = strdup(cipher ?: DEFAULT_LOOPAES_CIPHER); @@ -1025,10 +1013,10 @@ static int _crypt_format_verity(struct crypt_device *cd, const char *uuid, struct crypt_params_verity *params) { - int r = 0; + int r = 0, hash_size; uint64_t data_device_size; - if (!mdata_device(cd)) { + if (!crypt_metadata_device(cd)) { log_err(cd, _("Can't format VERITY without device.\n")); return -EINVAL; } @@ -1036,14 +1024,30 @@ static int _crypt_format_verity(struct crypt_device *cd, if (!params || !params->data_device) return -EINVAL; - /* set data device */ - cd->type = CRYPT_VERITY; + if (params->hash_type > VERITY_MAX_HASH_TYPE) { + log_err(cd, _("Unsupported VERITY hash type %d.\n"), params->hash_type); + return -EINVAL; + } + + if (VERITY_BLOCK_SIZE_OK(params->data_block_size) || + VERITY_BLOCK_SIZE_OK(params->hash_block_size)) { + log_err(cd, _("Unsupported VERITY block size.\n")); + return -EINVAL; + } + + if (params->hash_area_offset % 512) { + log_err(cd, _("Unsupported VERITY hash offset.\n")); + return -EINVAL; + } + + if (!(cd->type = strdup(CRYPT_VERITY))) + return -ENOMEM; + r = crypt_set_data_device(cd, params->data_device); - cd->type = NULL; if (r) return r; if (!params->data_size) { - r = device_size(params->data_device, &data_device_size); + r = device_size(cd->device, &data_device_size); if (r < 0) return r; @@ -1051,16 +1055,21 @@ static int _crypt_format_verity(struct crypt_device *cd, } else cd->verity_hdr.data_size = params->data_size; - cd->verity_root_hash_size = crypt_hash_size(params->hash_name); - if (!cd->verity_root_hash_size) + hash_size = crypt_hash_size(params->hash_name); + if (hash_size <= 0) { + log_err(cd, _("Hash algorithm %s not supported.\n"), + params->hash_name); return -EINVAL; + } + cd->verity_root_hash_size = hash_size; cd->verity_root_hash = malloc(cd->verity_root_hash_size); if (!cd->verity_root_hash) return -ENOMEM; cd->verity_hdr.flags = params->flags; - cd->verity_hdr.hash_name = strdup(params->hash_name); + if (!(cd->verity_hdr.hash_name = strdup(params->hash_name))) + return -ENOMEM; cd->verity_hdr.data_device = NULL; cd->verity_hdr.data_block_size = params->data_block_size; cd->verity_hdr.hash_block_size = params->hash_block_size; @@ -1068,7 +1077,9 @@ static int _crypt_format_verity(struct crypt_device *cd, cd->verity_hdr.hash_type = params->hash_type; cd->verity_hdr.flags = params->flags; cd->verity_hdr.salt_size = params->salt_size; - cd->verity_hdr.salt = malloc(params->salt_size); + if (!(cd->verity_hdr.salt = malloc(params->salt_size))) + return -ENOMEM; + if (params->salt) memcpy(CONST_CAST(char*)cd->verity_hdr.salt, params->salt, params->salt_size); @@ -1079,7 +1090,7 @@ static int _crypt_format_verity(struct crypt_device *cd, return r; if (params->flags & CRYPT_VERITY_CREATE_HASH) { - r = VERITY_create(cd, &cd->verity_hdr, cd->device, mdata_device(cd), + r = VERITY_create(cd, &cd->verity_hdr, cd->verity_root_hash, cd->verity_root_hash_size); if (r) return r; @@ -1094,8 +1105,7 @@ static int _crypt_format_verity(struct crypt_device *cd, return r; } - r = VERITY_write_sb(cd, mdata_device(cd), - cd->verity_hdr.hash_area_offset, + r = VERITY_write_sb(cd, cd->verity_hdr.hash_area_offset, cd->verity_uuid, &cd->verity_hdr); } @@ -1121,7 +1131,7 @@ int crypt_format(struct crypt_device *cd, return -EINVAL; } - log_dbg("Formatting device %s as type %s.", mdata_device(cd) ?: "(none)", type); + log_dbg("Formatting device %s as type %s.", mdata_device_path(cd) ?: "(none)", type); r = init_crypto(cd); if (r < 0) @@ -1142,10 +1152,9 @@ int crypt_format(struct crypt_device *cd, r = -EINVAL; } - if (!r && !(cd->type = strdup(type))) - r = -ENOMEM; - if (r < 0) { + free(cd->type); + cd->type = NULL; crypt_free_volume_key(cd->volume_key); cd->volume_key = NULL; } @@ -1160,9 +1169,9 @@ int crypt_load(struct crypt_device *cd, int r; log_dbg("Trying to load %s crypt type from device %s.", - requested_type ?: "any", mdata_device(cd) ?: "(none)"); + requested_type ?: "any", mdata_device_path(cd) ?: "(none)"); - if (!mdata_device(cd)) + if (!crypt_metadata_device(cd)) return -EINVAL; if (!requested_type || isLUKS(requested_type)) { @@ -1181,16 +1190,6 @@ int crypt_load(struct crypt_device *cd, } else return -EINVAL; - if (r < 0) - return r; - - /* cd->type and header must be set in context */ - r = crypt_check_data_device_size(cd); - if (r < 0) { - free(cd->type); - cd->type = NULL; - } - return r; } @@ -1201,9 +1200,9 @@ int crypt_repair(struct crypt_device *cd, int r; log_dbg("Trying to repair %s crypt type from device %s.", - requested_type ?: "any", mdata_device(cd) ?: "(none)"); + requested_type ?: "any", mdata_device_path(cd) ?: "(none)"); - if (!mdata_device(cd)) + if (!crypt_metadata_device(cd)) return -EINVAL; if (requested_type && !isLUKS(requested_type)) @@ -1236,7 +1235,7 @@ int crypt_resize(struct crypt_device *cd, const char *name, uint64_t new_size) log_dbg("Resizing device %s to %" PRIu64 " sectors.", name, new_size); - r = dm_query_device(name, DM_ACTIVE_DEVICE | DM_ACTIVE_CRYPT_CIPHER | + r = dm_query_device(cd, name, DM_ACTIVE_DEVICE | DM_ACTIVE_CRYPT_CIPHER | DM_ACTIVE_UUID | DM_ACTIVE_CRYPT_KEYSIZE | DM_ACTIVE_CRYPT_KEY, &dmd); if (r < 0) { @@ -1249,8 +1248,8 @@ int crypt_resize(struct crypt_device *cd, const char *name, uint64_t new_size) goto out; } - r = device_check_and_adjust(cd, dmd.data_device, DEV_OK, &new_size, - &dmd.u.crypt.offset, &dmd.flags); + r = device_block_adjust(cd, dmd.data_device, DEV_OK, + dmd.u.crypt.offset, &new_size, &dmd.flags); if (r) goto out; @@ -1260,7 +1259,7 @@ int crypt_resize(struct crypt_device *cd, const char *name, uint64_t new_size) r = 0; } else { dmd.size = new_size; - r = dm_create_device(name, cd->type, &dmd, 1); + r = dm_create_device(cd, name, cd->type, &dmd, 1); } out: if (dmd.target == DM_CRYPT) { @@ -1282,19 +1281,19 @@ int crypt_set_uuid(struct crypt_device *cd, const char *uuid) if (uuid && !strncmp(uuid, cd->hdr.uuid, sizeof(cd->hdr.uuid))) { log_dbg("UUID is the same as requested (%s) for device %s.", - uuid, mdata_device(cd)); + uuid, mdata_device_path(cd)); return 0; } if (uuid) - log_dbg("Requested new UUID change to %s for %s.", uuid, mdata_device(cd)); + log_dbg("Requested new UUID change to %s for %s.", uuid, mdata_device_path(cd)); else - log_dbg("Requested new UUID refresh for %s.", mdata_device(cd)); + log_dbg("Requested new UUID refresh for %s.", mdata_device_path(cd)); if (!crypt_confirm(cd, _("Do you really want to change UUID of device?"))) return -EPERM; - return LUKS_hdr_uuid_set(mdata_device(cd), &cd->hdr, uuid, cd); + return LUKS_hdr_uuid_set(&cd->hdr, uuid, cd); } int crypt_header_backup(struct crypt_device *cd, @@ -1311,9 +1310,9 @@ int crypt_header_backup(struct crypt_device *cd, return r; log_dbg("Requested header backup of device %s (%s) to " - "file %s.", mdata_device(cd), requested_type, backup_file); + "file %s.", mdata_device_path(cd), requested_type, backup_file); - return LUKS_hdr_backup(backup_file, mdata_device(cd), &cd->hdr, cd); + return LUKS_hdr_backup(backup_file, &cd->hdr, cd); } int crypt_header_restore(struct crypt_device *cd, @@ -1330,24 +1329,21 @@ int crypt_header_restore(struct crypt_device *cd, return r; log_dbg("Requested header restore to device %s (%s) from " - "file %s.", mdata_device(cd), requested_type, backup_file); + "file %s.", mdata_device_path(cd), requested_type, backup_file); - return LUKS_hdr_restore(backup_file, mdata_device(cd), &cd->hdr, cd); + return LUKS_hdr_restore(backup_file, &cd->hdr, cd); } void crypt_free(struct crypt_device *cd) { if (cd) { - log_dbg("Releasing crypt device %s context.", mdata_device(cd)); - - if (cd->loop_fd != -1) - close(cd->loop_fd); + log_dbg("Releasing crypt device %s context.", mdata_device_path(cd)); - dm_exit(); + dm_backend_exit(); crypt_free_volume_key(cd->volume_key); - free(cd->device); - free(cd->metadata_device); + device_free(cd->device); + device_free(cd->metadata_device); free(cd->type); /* used in plain device only */ @@ -1379,7 +1375,7 @@ int crypt_suspend(struct crypt_device *cd, log_dbg("Suspending volume %s.", name); - if (!isLUKS(cd->type)) { + if (!cd || !isLUKS(cd->type)) { log_err(cd, _("This operation is supported only for LUKS device.\n")); r = -EINVAL; goto out; @@ -1391,10 +1387,9 @@ int crypt_suspend(struct crypt_device *cd, return -EINVAL; } - if (!cd && dm_init(NULL, 1) < 0) - return -ENOSYS; + dm_backend_init(); - r = dm_status_suspended(name); + r = dm_status_suspended(cd, name); if (r < 0) goto out; @@ -1404,14 +1399,13 @@ int crypt_suspend(struct crypt_device *cd, goto out; } - r = dm_suspend_and_wipe_key(name); + r = dm_suspend_and_wipe_key(cd, name); if (r == -ENOTSUP) log_err(cd, "Suspend is not supported for device %s.\n", name); else if (r) log_err(cd, "Error during suspending device %s.\n", name); out: - if (!cd) - dm_exit(); + dm_backend_exit(); return r; } @@ -1432,7 +1426,7 @@ int crypt_resume_by_passphrase(struct crypt_device *cd, goto out; } - r = dm_status_suspended(name); + r = dm_status_suspended(cd, name); if (r < 0) return r; @@ -1442,14 +1436,14 @@ int crypt_resume_by_passphrase(struct crypt_device *cd, } if (passphrase) { - r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase, - passphrase_size, &cd->hdr, &vk, cd); + r = LUKS_open_key_with_hdr(keyslot, passphrase, passphrase_size, + &cd->hdr, &vk, cd); } else r = volume_key_by_terminal_passphrase(cd, keyslot, &vk); if (r >= 0) { keyslot = r; - r = dm_resume_and_reinstate_key(name, vk->keylength, vk->key); + r = dm_resume_and_reinstate_key(cd, name, vk->keylength, vk->key); if (r == -ENOTSUP) log_err(cd, "Resume is not supported for device %s.\n", name); else if (r) @@ -1481,7 +1475,7 @@ int crypt_resume_by_keyfile_offset(struct crypt_device *cd, goto out; } - r = dm_status_suspended(name); + r = dm_status_suspended(cd, name); if (r < 0) return r; @@ -1499,13 +1493,13 @@ int crypt_resume_by_keyfile_offset(struct crypt_device *cd, if (r < 0) goto out; - r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase_read, + r = LUKS_open_key_with_hdr(keyslot, passphrase_read, passphrase_size_read, &cd->hdr, &vk, cd); if (r < 0) goto out; keyslot = r; - r = dm_resume_and_reinstate_key(name, vk->keylength, vk->key); + r = dm_resume_and_reinstate_key(cd, name, vk->keylength, vk->key); if (r) log_err(cd, "Error during resuming device %s.\n", name); out: @@ -1561,7 +1555,7 @@ int crypt_keyslot_add_by_passphrase(struct crypt_device *cd, } } else if (passphrase) { /* Passphrase provided, use it to unlock existing keyslot */ - r = LUKS_open_key_with_hdr(mdata_device(cd), CRYPT_ANY_SLOT, passphrase, + r = LUKS_open_key_with_hdr(CRYPT_ANY_SLOT, passphrase, passphrase_size, &cd->hdr, &vk, cd); } else { /* Passphrase not provided, ask first and use it to unlock existing keyslot */ @@ -1570,7 +1564,7 @@ int crypt_keyslot_add_by_passphrase(struct crypt_device *cd, if (r < 0) goto out; - r = LUKS_open_key_with_hdr(mdata_device(cd), CRYPT_ANY_SLOT, password, + r = LUKS_open_key_with_hdr(CRYPT_ANY_SLOT, password, passwordLen, &cd->hdr, &vk, cd); crypt_safe_free(password); } @@ -1588,7 +1582,7 @@ int crypt_keyslot_add_by_passphrase(struct crypt_device *cd, goto out; } - r = LUKS_set_key(mdata_device(cd), keyslot, new_password, new_passwordLen, + r = LUKS_set_key(keyslot, new_password, new_passwordLen, &cd->hdr, vk, cd->iteration_time, &cd->PBKDF2_per_sec, cd); if(r < 0) goto out; @@ -1647,7 +1641,7 @@ int crypt_keyslot_add_by_keyfile_offset(struct crypt_device *cd, if (r < 0) goto out; - r = LUKS_open_key_with_hdr(mdata_device(cd), CRYPT_ANY_SLOT, password, passwordLen, + r = LUKS_open_key_with_hdr(CRYPT_ANY_SLOT, password, passwordLen, &cd->hdr, &vk, cd); } @@ -1664,7 +1658,7 @@ int crypt_keyslot_add_by_keyfile_offset(struct crypt_device *cd, if (r < 0) goto out; - r = LUKS_set_key(mdata_device(cd), keyslot, new_password, new_passwordLen, + r = LUKS_set_key(keyslot, new_password, new_passwordLen, &cd->hdr, vk, cd->iteration_time, &cd->PBKDF2_per_sec, cd); out: crypt_safe_free(password); @@ -1730,7 +1724,7 @@ int crypt_keyslot_add_by_volume_key(struct crypt_device *cd, passphrase_size = new_passwordLen; } - r = LUKS_set_key(mdata_device(cd), keyslot, passphrase, passphrase_size, + r = LUKS_set_key(keyslot, passphrase, passphrase_size, &cd->hdr, vk, cd->iteration_time, &cd->PBKDF2_per_sec, cd); out: crypt_safe_free(new_password); @@ -1760,7 +1754,7 @@ int crypt_keyslot_destroy(struct crypt_device *cd, int keyslot) return -EINVAL; } - return LUKS_del_key(mdata_device(cd), keyslot, &cd->hdr, cd); + return LUKS_del_key(keyslot, &cd->hdr, cd); } // activation/deactivation of device mapping @@ -1816,7 +1810,7 @@ int crypt_activate_by_passphrase(struct crypt_device *cd, } else if (isLUKS(cd->type)) { /* provided passphrase, do not retry */ if (passphrase) { - r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase, + r = LUKS_open_key_with_hdr(keyslot, passphrase, passphrase_size, &cd->hdr, &vk, cd); } else r = volume_key_by_terminal_passphrase(cd, keyslot, &vk); @@ -1888,7 +1882,7 @@ int crypt_activate_by_keyfile_offset(struct crypt_device *cd, &passphrase_size_read, keyfile, keyfile_offset, keyfile_size); if (r < 0) goto out; - r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase_read, + r = LUKS_open_key_with_hdr(keyslot, passphrase_read, passphrase_size_read, &cd->hdr, &vk, cd); if (r < 0) goto out; @@ -1998,8 +1992,7 @@ int crypt_activate_by_volume_key(struct crypt_device *cd, return -EINVAL; } - r = VERITY_activate(cd, name, mdata_device(cd), - volume_key, volume_key_size, + r = VERITY_activate(cd, name, volume_key, volume_key_size, &cd->verity_hdr, CRYPT_ACTIVATE_READONLY); if (r == -EPERM) { @@ -2029,13 +2022,13 @@ int crypt_deactivate(struct crypt_device *cd, const char *name) log_dbg("Deactivating volume %s.", name); - if (!cd && dm_init(NULL, 1) < 0) - return -ENOSYS; + if (!cd) + dm_backend_init(); switch (crypt_status(cd, name)) { case CRYPT_ACTIVE: case CRYPT_BUSY: - r = dm_remove_device(name, 0, 0); + r = dm_remove_device(cd, name, 0, 0); break; case CRYPT_INACTIVE: log_err(cd, _("Device %s is not active.\n"), name); @@ -2047,7 +2040,7 @@ int crypt_deactivate(struct crypt_device *cd, const char *name) } if (!cd) - dm_exit(); + dm_backend_exit(); return r; } @@ -2080,7 +2073,7 @@ int crypt_volume_key_get(struct crypt_device *cd, if (r < 0) log_err(cd, _("Cannot retrieve volume key for plain device.\n")); } else if (isLUKS(cd->type)) { - r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase, + r = LUKS_open_key_with_hdr(keyslot, passphrase, passphrase_size, &cd->hdr, &vk, cd); } else @@ -2177,13 +2170,13 @@ crypt_status_info crypt_status(struct crypt_device *cd, const char *name) { int r; - if (!cd && dm_init(NULL, 1) < 0) - return CRYPT_INVALID; + if (!cd) + dm_backend_init(); - r = dm_status_device(name); + r = dm_status_device(cd, name); if (!cd) - dm_exit(); + dm_backend_exit(); if (r < 0 && r != -ENODEV) return CRYPT_INVALID; @@ -2208,7 +2201,7 @@ static int _luks_dump(struct crypt_device *cd) { int i; - log_std(cd, "LUKS header information for %s\n\n", mdata_device(cd)); + log_std(cd, "LUKS header information for %s\n\n", mdata_device_path(cd)); log_std(cd, "Version: \t%d\n", cd->hdr.version); log_std(cd, "Cipher name: \t%s\n", cd->hdr.cipherName); log_std(cd, "Cipher mode: \t%s\n", cd->hdr.cipherMode); @@ -2251,7 +2244,7 @@ static int _luks_dump(struct crypt_device *cd) static int _verity_dump(struct crypt_device *cd) { - log_std(cd, "VERITY header information for %s\n", mdata_device(cd)); + log_std(cd, "VERITY header information for %s\n", mdata_device_path(cd)); log_std(cd, "UUID: \t%s\n", cd->verity_uuid ?: ""); log_std(cd, "Hash type: \t%u\n", cd->verity_hdr.hash_type); log_std(cd, "Data blocks: \t%" PRIu64 "\n", cd->verity_hdr.data_size); @@ -2330,7 +2323,12 @@ const char *crypt_get_uuid(struct crypt_device *cd) const char *crypt_get_device_name(struct crypt_device *cd) { - return cd->device; + const char *path = device_block_path(cd->device); + + if (!path) + path = device_path(cd->device); + + return path; } int crypt_get_volume_key_size(struct crypt_device *cd) @@ -2396,6 +2394,17 @@ int crypt_keyslot_max(const char *type) return -EINVAL; } +int crypt_keyslot_area(struct crypt_device *cd, + int keyslot, + uint64_t *offset, + uint64_t *length) +{ + if (!isLUKS(cd->type)) + return -EINVAL; + + return LUKS_keyslot_area(&cd->hdr, keyslot, offset, length); +} + const char *crypt_get_type(struct crypt_device *cd) { return cd->type; @@ -2407,8 +2416,8 @@ int crypt_get_verity_info(struct crypt_device *cd, if (!isVERITY(cd->type) || !vp) return -EINVAL; - vp->data_device = cd->device; - vp->hash_device = mdata_device(cd); + vp->data_device = device_path(cd->device); + vp->hash_device = mdata_device_path(cd); vp->hash_name = cd->verity_hdr.hash_name; vp->salt = cd->verity_hdr.salt; vp->salt_size = cd->verity_hdr.salt_size; @@ -2428,7 +2437,7 @@ int crypt_get_active_device(struct crypt_device *cd __attribute__((unused)), struct crypt_dm_active_device dmd; int r; - r = dm_query_device(name, 0, &dmd); + r = dm_query_device(cd, name, 0, &dmd); if (r < 0) return r;