diff options
Diffstat (limited to 'drivers/md/dm-crypt.c')
| -rw-r--r-- | drivers/md/dm-crypt.c | 45 |
1 files changed, 31 insertions, 14 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 8c874710f0bc..11c105ecd165 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -37,6 +37,7 @@ #include <linux/key-type.h> #include <keys/user-type.h> #include <keys/encrypted-type.h> +#include <keys/trusted-type.h> #include <linux/device-mapper.h> @@ -133,7 +134,7 @@ enum flags { DM_CRYPT_SUSPENDED, DM_CRYPT_KEY_VALID, DM_CRYPT_WRITE_INLINE }; enum cipher_flags { - CRYPT_MODE_INTEGRITY_AEAD, /* Use authenticated mode for cihper */ + CRYPT_MODE_INTEGRITY_AEAD, /* Use authenticated mode for cipher */ CRYPT_IV_LARGE_SECTORS, /* Calculate IV from sector_size, not 512B sectors */ CRYPT_ENCRYPT_PREPROCESS, /* Must preprocess data for encryption (elephant) */ }; @@ -1481,9 +1482,9 @@ static int crypt_alloc_req_skcipher(struct crypt_config *cc, static int crypt_alloc_req_aead(struct crypt_config *cc, struct convert_context *ctx) { - if (!ctx->r.req) { - ctx->r.req = mempool_alloc(&cc->req_pool, in_interrupt() ? GFP_ATOMIC : GFP_NOIO); - if (!ctx->r.req) + if (!ctx->r.req_aead) { + ctx->r.req_aead = mempool_alloc(&cc->req_pool, in_interrupt() ? GFP_ATOMIC : GFP_NOIO); + if (!ctx->r.req_aead) return -ENOMEM; } @@ -2436,7 +2437,6 @@ static int set_key_user(struct crypt_config *cc, struct key *key) return 0; } -#if defined(CONFIG_ENCRYPTED_KEYS) || defined(CONFIG_ENCRYPTED_KEYS_MODULE) static int set_key_encrypted(struct crypt_config *cc, struct key *key) { const struct encrypted_key_payload *ekp; @@ -2452,7 +2452,22 @@ static int set_key_encrypted(struct crypt_config *cc, struct key *key) return 0; } -#endif /* CONFIG_ENCRYPTED_KEYS */ + +static int set_key_trusted(struct crypt_config *cc, struct key *key) +{ + const struct trusted_key_payload *tkp; + + tkp = key->payload.data[0]; + if (!tkp) + return -EKEYREVOKED; + + if (cc->key_size != tkp->key_len) + return -EINVAL; + + memcpy(cc->key, tkp->key, cc->key_size); + + return 0; +} static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string) { @@ -2482,11 +2497,14 @@ static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string } else if (!strncmp(key_string, "user:", key_desc - key_string + 1)) { type = &key_type_user; set_key = set_key_user; -#if defined(CONFIG_ENCRYPTED_KEYS) || defined(CONFIG_ENCRYPTED_KEYS_MODULE) - } else if (!strncmp(key_string, "encrypted:", key_desc - key_string + 1)) { + } else if (IS_ENABLED(CONFIG_ENCRYPTED_KEYS) && + !strncmp(key_string, "encrypted:", key_desc - key_string + 1)) { type = &key_type_encrypted; set_key = set_key_encrypted; -#endif + } else if (IS_ENABLED(CONFIG_TRUSTED_KEYS) && + !strncmp(key_string, "trusted:", key_desc - key_string + 1)) { + type = &key_type_trusted; + set_key = set_key_trusted; } else { return -EINVAL; } @@ -3116,7 +3134,6 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar } #ifdef CONFIG_BLK_DEV_ZONED - static int crypt_report_zones(struct dm_target *ti, struct dm_report_zones_args *args, unsigned int nr_zones) { @@ -3127,7 +3144,8 @@ static int crypt_report_zones(struct dm_target *ti, return blkdev_report_zones(cc->dev->bdev, sector, nr_zones, dm_report_zones_cb, args); } - +#else +#define crypt_report_zones NULL #endif /* @@ -3324,6 +3342,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) wake_up_process(cc->write_thread); ti->num_flush_bios = 1; + ti->limit_swap_bios = true; return 0; @@ -3558,14 +3577,12 @@ static void crypt_io_hints(struct dm_target *ti, struct queue_limits *limits) static struct target_type crypt_target = { .name = "crypt", - .version = {1, 22, 0}, + .version = {1, 23, 0}, .module = THIS_MODULE, .ctr = crypt_ctr, .dtr = crypt_dtr, -#ifdef CONFIG_BLK_DEV_ZONED .features = DM_TARGET_ZONED_HM, .report_zones = crypt_report_zones, -#endif .map = crypt_map, .status = crypt_status, .postsuspend = crypt_postsuspend, |