Lines Matching full:cc
78 struct crypt_config *cc; member
106 int (*ctr)(struct crypt_config *cc, struct dm_target *ti,
108 void (*dtr)(struct crypt_config *cc);
109 int (*init)(struct crypt_config *cc);
110 int (*wipe)(struct crypt_config *cc);
111 int (*generator)(struct crypt_config *cc, u8 *iv,
113 int (*post)(struct crypt_config *cc, u8 *iv,
256 static unsigned get_max_request_size(struct crypt_config *cc, bool wrt) in get_max_request_size() argument
262 if (wrt || cc->used_tag_size) { in get_max_request_size()
266 sector_align = max(bdev_logical_block_size(cc->dev->bdev), (unsigned)cc->sector_size); in get_max_request_size()
275 static struct scatterlist *crypt_get_sg_data(struct crypt_config *cc,
278 static bool crypt_integrity_aead(struct crypt_config *cc);
283 static struct crypto_skcipher *any_tfm(struct crypt_config *cc) in any_tfm() argument
285 return cc->cipher_tfm.tfms[0]; in any_tfm()
288 static struct crypto_aead *any_tfm_aead(struct crypt_config *cc) in any_tfm_aead() argument
290 return cc->cipher_tfm.tfms_aead[0]; in any_tfm_aead()
349 static int crypt_iv_plain_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_plain_gen() argument
352 memset(iv, 0, cc->iv_size); in crypt_iv_plain_gen()
358 static int crypt_iv_plain64_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_plain64_gen() argument
361 memset(iv, 0, cc->iv_size); in crypt_iv_plain64_gen()
367 static int crypt_iv_plain64be_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_plain64be_gen() argument
370 memset(iv, 0, cc->iv_size); in crypt_iv_plain64be_gen()
372 *(__be64 *)&iv[cc->iv_size - sizeof(u64)] = cpu_to_be64(dmreq->iv_sector); in crypt_iv_plain64be_gen()
377 static int crypt_iv_essiv_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_essiv_gen() argument
384 memset(iv, 0, cc->iv_size); in crypt_iv_essiv_gen()
390 static int crypt_iv_benbi_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_benbi_ctr() argument
396 if (crypt_integrity_aead(cc)) in crypt_iv_benbi_ctr()
397 bs = crypto_aead_blocksize(any_tfm_aead(cc)); in crypt_iv_benbi_ctr()
399 bs = crypto_skcipher_blocksize(any_tfm(cc)); in crypt_iv_benbi_ctr()
416 cc->iv_gen_private.benbi.shift = 9 - log; in crypt_iv_benbi_ctr()
421 static void crypt_iv_benbi_dtr(struct crypt_config *cc) in crypt_iv_benbi_dtr() argument
425 static int crypt_iv_benbi_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_benbi_gen() argument
430 memset(iv, 0, cc->iv_size - sizeof(u64)); /* rest is cleared below */ in crypt_iv_benbi_gen()
432 val = cpu_to_be64(((u64)dmreq->iv_sector << cc->iv_gen_private.benbi.shift) + 1); in crypt_iv_benbi_gen()
433 put_unaligned(val, (__be64 *)(iv + cc->iv_size - sizeof(u64))); in crypt_iv_benbi_gen()
438 static int crypt_iv_null_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_null_gen() argument
441 memset(iv, 0, cc->iv_size); in crypt_iv_null_gen()
446 static void crypt_iv_lmk_dtr(struct crypt_config *cc) in crypt_iv_lmk_dtr() argument
448 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_dtr()
458 static int crypt_iv_lmk_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_lmk_ctr() argument
461 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_ctr()
463 if (cc->sector_size != (1 << SECTOR_SHIFT)) { in crypt_iv_lmk_ctr()
476 if (cc->key_parts == cc->tfms_count) { in crypt_iv_lmk_ctr()
483 crypt_iv_lmk_dtr(cc); in crypt_iv_lmk_ctr()
491 static int crypt_iv_lmk_init(struct crypt_config *cc) in crypt_iv_lmk_init() argument
493 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_init()
494 int subkey_size = cc->key_size / cc->key_parts; in crypt_iv_lmk_init()
498 memcpy(lmk->seed, cc->key + (cc->tfms_count * subkey_size), in crypt_iv_lmk_init()
504 static int crypt_iv_lmk_wipe(struct crypt_config *cc) in crypt_iv_lmk_wipe() argument
506 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_wipe()
514 static int crypt_iv_lmk_one(struct crypt_config *cc, u8 *iv, in crypt_iv_lmk_one() argument
518 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_one()
557 memcpy(iv, &md5state.hash, cc->iv_size); in crypt_iv_lmk_one()
562 static int crypt_iv_lmk_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_lmk_gen() argument
570 sg = crypt_get_sg_data(cc, dmreq->sg_in); in crypt_iv_lmk_gen()
572 r = crypt_iv_lmk_one(cc, iv, dmreq, src + sg->offset); in crypt_iv_lmk_gen()
575 memset(iv, 0, cc->iv_size); in crypt_iv_lmk_gen()
580 static int crypt_iv_lmk_post(struct crypt_config *cc, u8 *iv, in crypt_iv_lmk_post() argument
590 sg = crypt_get_sg_data(cc, dmreq->sg_out); in crypt_iv_lmk_post()
592 r = crypt_iv_lmk_one(cc, iv, dmreq, dst + sg->offset); in crypt_iv_lmk_post()
596 crypto_xor(dst + sg->offset, iv, cc->iv_size); in crypt_iv_lmk_post()
602 static void crypt_iv_tcw_dtr(struct crypt_config *cc) in crypt_iv_tcw_dtr() argument
604 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_dtr()
612 static int crypt_iv_tcw_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_tcw_ctr() argument
615 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_ctr()
617 if (cc->sector_size != (1 << SECTOR_SHIFT)) { in crypt_iv_tcw_ctr()
622 if (cc->key_size <= (cc->iv_size + TCW_WHITENING_SIZE)) { in crypt_iv_tcw_ctr()
627 tcw->iv_seed = kzalloc(cc->iv_size, GFP_KERNEL); in crypt_iv_tcw_ctr()
630 crypt_iv_tcw_dtr(cc); in crypt_iv_tcw_ctr()
638 static int crypt_iv_tcw_init(struct crypt_config *cc) in crypt_iv_tcw_init() argument
640 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_init()
641 int key_offset = cc->key_size - cc->iv_size - TCW_WHITENING_SIZE; in crypt_iv_tcw_init()
643 memcpy(tcw->iv_seed, &cc->key[key_offset], cc->iv_size); in crypt_iv_tcw_init()
644 memcpy(tcw->whitening, &cc->key[key_offset + cc->iv_size], in crypt_iv_tcw_init()
650 static int crypt_iv_tcw_wipe(struct crypt_config *cc) in crypt_iv_tcw_wipe() argument
652 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_wipe()
654 memset(tcw->iv_seed, 0, cc->iv_size); in crypt_iv_tcw_wipe()
660 static void crypt_iv_tcw_whitening(struct crypt_config *cc, in crypt_iv_tcw_whitening() argument
663 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_whitening()
684 static int crypt_iv_tcw_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_tcw_gen() argument
688 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_gen()
694 sg = crypt_get_sg_data(cc, dmreq->sg_in); in crypt_iv_tcw_gen()
696 crypt_iv_tcw_whitening(cc, dmreq, src + sg->offset); in crypt_iv_tcw_gen()
702 if (cc->iv_size > 8) in crypt_iv_tcw_gen()
704 cc->iv_size - 8); in crypt_iv_tcw_gen()
709 static int crypt_iv_tcw_post(struct crypt_config *cc, u8 *iv, in crypt_iv_tcw_post() argument
719 sg = crypt_get_sg_data(cc, dmreq->sg_out); in crypt_iv_tcw_post()
721 crypt_iv_tcw_whitening(cc, dmreq, dst + sg->offset); in crypt_iv_tcw_post()
727 static int crypt_iv_random_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_random_gen() argument
731 get_random_bytes(iv, cc->iv_size); in crypt_iv_random_gen()
735 static int crypt_iv_eboiv_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_eboiv_ctr() argument
738 if (crypt_integrity_aead(cc)) { in crypt_iv_eboiv_ctr()
743 if (crypto_skcipher_blocksize(any_tfm(cc)) != cc->iv_size) { in crypt_iv_eboiv_ctr()
751 static int crypt_iv_eboiv_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_eboiv_gen() argument
754 struct crypto_skcipher *tfm = any_tfm(cc); in crypt_iv_eboiv_gen()
765 req = kmalloc(reqsize + cc->iv_size, GFP_NOIO); in crypt_iv_eboiv_gen()
772 memset(buf, 0, cc->iv_size); in crypt_iv_eboiv_gen()
773 *(__le64 *)buf = cpu_to_le64(dmreq->iv_sector * cc->sector_size); in crypt_iv_eboiv_gen()
775 sg_init_one(&src, page_address(ZERO_PAGE(0)), cc->iv_size); in crypt_iv_eboiv_gen()
776 sg_init_one(&dst, iv, cc->iv_size); in crypt_iv_eboiv_gen()
777 skcipher_request_set_crypt(req, &src, &dst, cc->iv_size, buf); in crypt_iv_eboiv_gen()
785 static void crypt_iv_elephant_dtr(struct crypt_config *cc) in crypt_iv_elephant_dtr() argument
787 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_dtr()
793 static int crypt_iv_elephant_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_elephant_ctr() argument
796 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_ctr()
807 r = crypt_iv_eboiv_ctr(cc, ti, NULL); in crypt_iv_elephant_ctr()
809 crypt_iv_elephant_dtr(cc); in crypt_iv_elephant_ctr()
957 static int crypt_iv_elephant(struct crypt_config *cc, struct dm_crypt_request *dmreq) in crypt_iv_elephant() argument
959 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant()
975 *(__le64 *)es = cpu_to_le64(dmreq->iv_sector * cc->sector_size); in crypt_iv_elephant()
993 sg = crypt_get_sg_data(cc, dmreq->sg_out); in crypt_iv_elephant()
999 sg2 = crypt_get_sg_data(cc, dmreq->sg_in); in crypt_iv_elephant()
1001 memcpy(data_offset, data2 + sg2->offset, cc->sector_size); in crypt_iv_elephant()
1006 diffuser_disk_to_cpu((u32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1007 diffuser_b_decrypt((u32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1008 diffuser_a_decrypt((u32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1009 diffuser_cpu_to_disk((__le32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1012 for (i = 0; i < (cc->sector_size / 32); i++) in crypt_iv_elephant()
1016 diffuser_disk_to_cpu((u32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1017 diffuser_a_encrypt((u32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1018 diffuser_b_encrypt((u32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1019 diffuser_cpu_to_disk((__le32 *)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1030 static int crypt_iv_elephant_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_elephant_gen() argument
1036 r = crypt_iv_elephant(cc, dmreq); in crypt_iv_elephant_gen()
1041 return crypt_iv_eboiv_gen(cc, iv, dmreq); in crypt_iv_elephant_gen()
1044 static int crypt_iv_elephant_post(struct crypt_config *cc, u8 *iv, in crypt_iv_elephant_post() argument
1048 return crypt_iv_elephant(cc, dmreq); in crypt_iv_elephant_post()
1053 static int crypt_iv_elephant_init(struct crypt_config *cc) in crypt_iv_elephant_init() argument
1055 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_init()
1056 int key_offset = cc->key_size - cc->key_extra_size; in crypt_iv_elephant_init()
1058 return crypto_skcipher_setkey(elephant->tfm, &cc->key[key_offset], cc->key_extra_size); in crypt_iv_elephant_init()
1061 static int crypt_iv_elephant_wipe(struct crypt_config *cc) in crypt_iv_elephant_wipe() argument
1063 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_wipe()
1066 memset(key, 0, cc->key_extra_size); in crypt_iv_elephant_wipe()
1067 return crypto_skcipher_setkey(elephant->tfm, key, cc->key_extra_size); in crypt_iv_elephant_wipe()
1135 static bool crypt_integrity_aead(struct crypt_config *cc) in crypt_integrity_aead() argument
1137 return test_bit(CRYPT_MODE_INTEGRITY_AEAD, &cc->cipher_flags); in crypt_integrity_aead()
1140 static bool crypt_integrity_hmac(struct crypt_config *cc) in crypt_integrity_hmac() argument
1142 return crypt_integrity_aead(cc) && cc->key_mac_size; in crypt_integrity_hmac()
1146 static struct scatterlist *crypt_get_sg_data(struct crypt_config *cc, in crypt_get_sg_data() argument
1149 if (unlikely(crypt_integrity_aead(cc))) in crypt_get_sg_data()
1161 if (!bio_sectors(bio) || !io->cc->tuple_size) in dm_crypt_integrity_io_alloc()
1168 tag_len = io->cc->tuple_size * (bio_sectors(bio) >> io->cc->sector_shift); in dm_crypt_integrity_io_alloc()
1180 static int crypt_integrity_ctr(struct crypt_config *cc, struct dm_target *ti) in crypt_integrity_ctr() argument
1183 struct blk_integrity *bi = blk_get_integrity(cc->dev->bdev->bd_disk); in crypt_integrity_ctr()
1192 if (bi->tuple_size < cc->used_tag_size) { in crypt_integrity_ctr()
1196 cc->tuple_size = bi->tuple_size; in crypt_integrity_ctr()
1197 if (1 << bi->interval_exp != cc->sector_size) { in crypt_integrity_ctr()
1202 if (crypt_integrity_aead(cc)) { in crypt_integrity_ctr()
1203 cc->integrity_tag_size = cc->used_tag_size - cc->integrity_iv_size; in crypt_integrity_ctr()
1205 cc->integrity_tag_size, cc->integrity_iv_size); in crypt_integrity_ctr()
1207 if (crypto_aead_setauthsize(any_tfm_aead(cc), cc->integrity_tag_size)) { in crypt_integrity_ctr()
1211 } else if (cc->integrity_iv_size) in crypt_integrity_ctr()
1213 cc->integrity_iv_size); in crypt_integrity_ctr()
1215 if ((cc->integrity_tag_size + cc->integrity_iv_size) > cc->tuple_size) { in crypt_integrity_ctr()
1227 static void crypt_convert_init(struct crypt_config *cc, in crypt_convert_init() argument
1238 ctx->cc_sector = sector + cc->iv_offset; in crypt_convert_init()
1243 static struct dm_crypt_request *dmreq_of_req(struct crypt_config *cc, in dmreq_of_req() argument
1246 return (struct dm_crypt_request *)((char *)req + cc->dmreq_start); in dmreq_of_req()
1249 static void *req_of_dmreq(struct crypt_config *cc, struct dm_crypt_request *dmreq) in req_of_dmreq() argument
1251 return (void *)((char *)dmreq - cc->dmreq_start); in req_of_dmreq()
1254 static u8 *iv_of_dmreq(struct crypt_config *cc, in iv_of_dmreq() argument
1257 if (crypt_integrity_aead(cc)) in iv_of_dmreq()
1259 crypto_aead_alignmask(any_tfm_aead(cc)) + 1); in iv_of_dmreq()
1262 crypto_skcipher_alignmask(any_tfm(cc)) + 1); in iv_of_dmreq()
1265 static u8 *org_iv_of_dmreq(struct crypt_config *cc, in org_iv_of_dmreq() argument
1268 return iv_of_dmreq(cc, dmreq) + cc->iv_size; in org_iv_of_dmreq()
1271 static __le64 *org_sector_of_dmreq(struct crypt_config *cc, in org_sector_of_dmreq() argument
1274 u8 *ptr = iv_of_dmreq(cc, dmreq) + cc->iv_size + cc->iv_size; in org_sector_of_dmreq()
1279 static unsigned int *org_tag_of_dmreq(struct crypt_config *cc, in org_tag_of_dmreq() argument
1282 u8 *ptr = iv_of_dmreq(cc, dmreq) + cc->iv_size + in org_tag_of_dmreq()
1283 cc->iv_size + sizeof(uint64_t); in org_tag_of_dmreq()
1288 static void *tag_from_dmreq(struct crypt_config *cc, in tag_from_dmreq() argument
1294 return &io->integrity_metadata[*org_tag_of_dmreq(cc, dmreq) * in tag_from_dmreq()
1295 cc->tuple_size]; in tag_from_dmreq()
1298 static void *iv_tag_from_dmreq(struct crypt_config *cc, in iv_tag_from_dmreq() argument
1301 return tag_from_dmreq(cc, dmreq) + cc->integrity_tag_size; in iv_tag_from_dmreq()
1304 static int crypt_convert_block_aead(struct crypt_config *cc, in crypt_convert_block_aead() argument
1316 BUG_ON(cc->integrity_iv_size && cc->integrity_iv_size != cc->iv_size); in crypt_convert_block_aead()
1319 if (unlikely(bv_in.bv_len & (cc->sector_size - 1))) in crypt_convert_block_aead()
1322 dmreq = dmreq_of_req(cc, req); in crypt_convert_block_aead()
1324 if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags)) in crypt_convert_block_aead()
1325 dmreq->iv_sector >>= cc->sector_shift; in crypt_convert_block_aead()
1328 *org_tag_of_dmreq(cc, dmreq) = tag_offset; in crypt_convert_block_aead()
1330 sector = org_sector_of_dmreq(cc, dmreq); in crypt_convert_block_aead()
1331 *sector = cpu_to_le64(ctx->cc_sector - cc->iv_offset); in crypt_convert_block_aead()
1333 iv = iv_of_dmreq(cc, dmreq); in crypt_convert_block_aead()
1334 org_iv = org_iv_of_dmreq(cc, dmreq); in crypt_convert_block_aead()
1335 tag = tag_from_dmreq(cc, dmreq); in crypt_convert_block_aead()
1336 tag_iv = iv_tag_from_dmreq(cc, dmreq); in crypt_convert_block_aead()
1345 sg_set_buf(&dmreq->sg_in[1], org_iv, cc->iv_size); in crypt_convert_block_aead()
1346 sg_set_page(&dmreq->sg_in[2], bv_in.bv_page, cc->sector_size, bv_in.bv_offset); in crypt_convert_block_aead()
1347 sg_set_buf(&dmreq->sg_in[3], tag, cc->integrity_tag_size); in crypt_convert_block_aead()
1351 sg_set_buf(&dmreq->sg_out[1], org_iv, cc->iv_size); in crypt_convert_block_aead()
1352 sg_set_page(&dmreq->sg_out[2], bv_out.bv_page, cc->sector_size, bv_out.bv_offset); in crypt_convert_block_aead()
1353 sg_set_buf(&dmreq->sg_out[3], tag, cc->integrity_tag_size); in crypt_convert_block_aead()
1355 if (cc->iv_gen_ops) { in crypt_convert_block_aead()
1357 if (cc->integrity_iv_size && bio_data_dir(ctx->bio_in) != WRITE) { in crypt_convert_block_aead()
1358 memcpy(org_iv, tag_iv, cc->iv_size); in crypt_convert_block_aead()
1360 r = cc->iv_gen_ops->generator(cc, org_iv, dmreq); in crypt_convert_block_aead()
1364 if (cc->integrity_iv_size) in crypt_convert_block_aead()
1365 memcpy(tag_iv, org_iv, cc->iv_size); in crypt_convert_block_aead()
1368 memcpy(iv, org_iv, cc->iv_size); in crypt_convert_block_aead()
1371 aead_request_set_ad(req, sizeof(uint64_t) + cc->iv_size); in crypt_convert_block_aead()
1374 cc->sector_size, iv); in crypt_convert_block_aead()
1376 if (cc->integrity_tag_size + cc->integrity_iv_size != cc->tuple_size) in crypt_convert_block_aead()
1377 memset(tag + cc->integrity_tag_size + cc->integrity_iv_size, 0, in crypt_convert_block_aead()
1378 cc->tuple_size - (cc->integrity_tag_size + cc->integrity_iv_size)); in crypt_convert_block_aead()
1381 cc->sector_size + cc->integrity_tag_size, iv); in crypt_convert_block_aead()
1397 if (!r && cc->iv_gen_ops && cc->iv_gen_ops->post) in crypt_convert_block_aead()
1398 r = cc->iv_gen_ops->post(cc, org_iv, dmreq); in crypt_convert_block_aead()
1400 bio_advance_iter(ctx->bio_in, &ctx->iter_in, cc->sector_size); in crypt_convert_block_aead()
1401 bio_advance_iter(ctx->bio_out, &ctx->iter_out, cc->sector_size); in crypt_convert_block_aead()
1406 static int crypt_convert_block_skcipher(struct crypt_config *cc, in crypt_convert_block_skcipher() argument
1420 if (unlikely(bv_in.bv_len & (cc->sector_size - 1))) in crypt_convert_block_skcipher()
1423 dmreq = dmreq_of_req(cc, req); in crypt_convert_block_skcipher()
1425 if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags)) in crypt_convert_block_skcipher()
1426 dmreq->iv_sector >>= cc->sector_shift; in crypt_convert_block_skcipher()
1429 *org_tag_of_dmreq(cc, dmreq) = tag_offset; in crypt_convert_block_skcipher()
1431 iv = iv_of_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1432 org_iv = org_iv_of_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1433 tag_iv = iv_tag_from_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1435 sector = org_sector_of_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1436 *sector = cpu_to_le64(ctx->cc_sector - cc->iv_offset); in crypt_convert_block_skcipher()
1443 sg_set_page(sg_in, bv_in.bv_page, cc->sector_size, bv_in.bv_offset); in crypt_convert_block_skcipher()
1446 sg_set_page(sg_out, bv_out.bv_page, cc->sector_size, bv_out.bv_offset); in crypt_convert_block_skcipher()
1448 if (cc->iv_gen_ops) { in crypt_convert_block_skcipher()
1450 if (cc->integrity_iv_size && bio_data_dir(ctx->bio_in) != WRITE) { in crypt_convert_block_skcipher()
1451 memcpy(org_iv, tag_iv, cc->integrity_iv_size); in crypt_convert_block_skcipher()
1453 r = cc->iv_gen_ops->generator(cc, org_iv, dmreq); in crypt_convert_block_skcipher()
1457 if (test_bit(CRYPT_ENCRYPT_PREPROCESS, &cc->cipher_flags)) in crypt_convert_block_skcipher()
1460 if (cc->integrity_iv_size) in crypt_convert_block_skcipher()
1461 memcpy(tag_iv, org_iv, cc->integrity_iv_size); in crypt_convert_block_skcipher()
1464 memcpy(iv, org_iv, cc->iv_size); in crypt_convert_block_skcipher()
1467 skcipher_request_set_crypt(req, sg_in, sg_out, cc->sector_size, iv); in crypt_convert_block_skcipher()
1474 if (!r && cc->iv_gen_ops && cc->iv_gen_ops->post) in crypt_convert_block_skcipher()
1475 r = cc->iv_gen_ops->post(cc, org_iv, dmreq); in crypt_convert_block_skcipher()
1477 bio_advance_iter(ctx->bio_in, &ctx->iter_in, cc->sector_size); in crypt_convert_block_skcipher()
1478 bio_advance_iter(ctx->bio_out, &ctx->iter_out, cc->sector_size); in crypt_convert_block_skcipher()
1485 static int crypt_alloc_req_skcipher(struct crypt_config *cc, in crypt_alloc_req_skcipher() argument
1488 unsigned int key_index = ctx->cc_sector & (cc->tfms_count - 1); in crypt_alloc_req_skcipher()
1491 ctx->r.req = mempool_alloc(&cc->req_pool, in_interrupt() ? GFP_ATOMIC : GFP_NOIO); in crypt_alloc_req_skcipher()
1496 skcipher_request_set_tfm(ctx->r.req, cc->cipher_tfm.tfms[key_index]); in crypt_alloc_req_skcipher()
1504 kcryptd_async_done, dmreq_of_req(cc, ctx->r.req)); in crypt_alloc_req_skcipher()
1509 static int crypt_alloc_req_aead(struct crypt_config *cc, in crypt_alloc_req_aead() argument
1513 ctx->r.req_aead = mempool_alloc(&cc->req_pool, in_interrupt() ? GFP_ATOMIC : GFP_NOIO); in crypt_alloc_req_aead()
1518 aead_request_set_tfm(ctx->r.req_aead, cc->cipher_tfm.tfms_aead[0]); in crypt_alloc_req_aead()
1526 kcryptd_async_done, dmreq_of_req(cc, ctx->r.req_aead)); in crypt_alloc_req_aead()
1531 static int crypt_alloc_req(struct crypt_config *cc, in crypt_alloc_req() argument
1534 if (crypt_integrity_aead(cc)) in crypt_alloc_req()
1535 return crypt_alloc_req_aead(cc, ctx); in crypt_alloc_req()
1537 return crypt_alloc_req_skcipher(cc, ctx); in crypt_alloc_req()
1540 static void crypt_free_req_skcipher(struct crypt_config *cc, in crypt_free_req_skcipher() argument
1543 struct dm_crypt_io *io = dm_per_bio_data(base_bio, cc->per_bio_data_size); in crypt_free_req_skcipher()
1546 mempool_free(req, &cc->req_pool); in crypt_free_req_skcipher()
1549 static void crypt_free_req_aead(struct crypt_config *cc, in crypt_free_req_aead() argument
1552 struct dm_crypt_io *io = dm_per_bio_data(base_bio, cc->per_bio_data_size); in crypt_free_req_aead()
1555 mempool_free(req, &cc->req_pool); in crypt_free_req_aead()
1558 static void crypt_free_req(struct crypt_config *cc, void *req, struct bio *base_bio) in crypt_free_req() argument
1560 if (crypt_integrity_aead(cc)) in crypt_free_req()
1561 crypt_free_req_aead(cc, req, base_bio); in crypt_free_req()
1563 crypt_free_req_skcipher(cc, req, base_bio); in crypt_free_req()
1569 static blk_status_t crypt_convert(struct crypt_config *cc, in crypt_convert() argument
1572 unsigned int sector_step = cc->sector_size >> SECTOR_SHIFT; in crypt_convert()
1585 r = crypt_alloc_req(cc, ctx); in crypt_convert()
1593 if (crypt_integrity_aead(cc)) in crypt_convert()
1594 r = crypt_convert_block_aead(cc, ctx, ctx->r.req_aead, ctx->tag_offset); in crypt_convert()
1596 r = crypt_convert_block_skcipher(cc, ctx, ctx->r.req, ctx->tag_offset); in crypt_convert()
1662 static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone);
1686 struct crypt_config *cc = io->cc; in crypt_alloc_buffer() local
1695 mutex_lock(&cc->bio_alloc_lock); in crypt_alloc_buffer()
1697 clone = bio_alloc_bioset(cc->dev->bdev, nr_iovecs, io->base_bio->bi_opf, in crypt_alloc_buffer()
1698 GFP_NOIO, &cc->bs); in crypt_alloc_buffer()
1702 clone->bi_iter.bi_sector = cc->start + io->sector; in crypt_alloc_buffer()
1713 if (unlikely(percpu_counter_read_positive(&cc->n_allocated_pages) + in crypt_alloc_buffer()
1720 percpu_counter_add(&cc->n_allocated_pages, 1 << order); in crypt_alloc_buffer()
1727 pages = mempool_alloc(&cc->page_pool, gfp_mask); in crypt_alloc_buffer()
1729 crypt_free_buffer_pages(cc, clone); in crypt_alloc_buffer()
1744 crypt_free_buffer_pages(cc, clone); in crypt_alloc_buffer()
1750 mutex_unlock(&cc->bio_alloc_lock); in crypt_alloc_buffer()
1755 static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone) in crypt_free_buffer_pages() argument
1762 percpu_counter_sub(&cc->n_allocated_pages, in crypt_free_buffer_pages()
1766 mempool_free(&fi.folio->page, &cc->page_pool); in crypt_free_buffer_pages()
1772 static void crypt_io_init(struct dm_crypt_io *io, struct crypt_config *cc, in crypt_io_init() argument
1775 io->cc = cc; in crypt_io_init()
1800 struct crypt_config *cc = io->cc; in crypt_dec_pending() local
1808 cc->used_tag_size && bio_data_dir(base_bio) == READ) { in crypt_dec_pending()
1817 crypt_free_req(cc, io->ctx.r.req, base_bio); in crypt_dec_pending()
1820 mempool_free(io->integrity_metadata, &io->cc->tag_pool); in crypt_dec_pending()
1849 struct crypt_config *cc = io->cc; in crypt_endio() local
1862 crypt_free_buffer_pages(cc, clone); in crypt_endio()
1881 struct crypt_config *cc = io->cc; in kcryptd_io_read() local
1893 crypt_convert_init(cc, &io->ctx, clone, clone, io->sector); in kcryptd_io_read()
1905 clone = bio_alloc_clone(cc->dev->bdev, io->base_bio, gfp, &cc->bs); in kcryptd_io_read()
1909 clone->bi_iter.bi_sector = cc->start + io->sector; in kcryptd_io_read()
1937 struct crypt_config *cc = io->cc; in kcryptd_queue_read() local
1940 queue_work(cc->io_queue, &io->work); in kcryptd_queue_read()
1954 struct crypt_config *cc = data; in dmcrypt_write() local
1961 spin_lock_irq(&cc->write_thread_lock); in dmcrypt_write()
1964 if (!RB_EMPTY_ROOT(&cc->write_tree)) in dmcrypt_write()
1969 spin_unlock_irq(&cc->write_thread_lock); in dmcrypt_write()
1978 spin_lock_irq(&cc->write_thread_lock); in dmcrypt_write()
1982 write_tree = cc->write_tree; in dmcrypt_write()
1983 cc->write_tree = RB_ROOT; in dmcrypt_write()
1984 spin_unlock_irq(&cc->write_thread_lock); in dmcrypt_write()
2007 struct crypt_config *cc = io->cc; in kcryptd_crypt_write_io_submit() local
2013 crypt_free_buffer_pages(cc, clone); in kcryptd_crypt_write_io_submit()
2022 if ((likely(!async) && test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags)) || in kcryptd_crypt_write_io_submit()
2023 test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags)) { in kcryptd_crypt_write_io_submit()
2028 spin_lock_irqsave(&cc->write_thread_lock, flags); in kcryptd_crypt_write_io_submit()
2029 if (RB_EMPTY_ROOT(&cc->write_tree)) in kcryptd_crypt_write_io_submit()
2030 wake_up_process(cc->write_thread); in kcryptd_crypt_write_io_submit()
2031 rbp = &cc->write_tree.rb_node; in kcryptd_crypt_write_io_submit()
2042 rb_insert_color(&io->rb_node, &cc->write_tree); in kcryptd_crypt_write_io_submit()
2043 spin_unlock_irqrestore(&cc->write_thread_lock, flags); in kcryptd_crypt_write_io_submit()
2046 static bool kcryptd_crypt_write_inline(struct crypt_config *cc, in kcryptd_crypt_write_inline() argument
2050 if (!test_bit(DM_CRYPT_WRITE_INLINE, &cc->flags)) in kcryptd_crypt_write_inline()
2070 struct crypt_config *cc = io->cc; in kcryptd_crypt_write_continue() local
2078 r = crypt_convert(cc, &io->ctx, false, false); in kcryptd_crypt_write_continue()
2082 if (!crypt_finished && kcryptd_crypt_write_inline(cc, ctx)) { in kcryptd_crypt_write_continue()
2097 struct crypt_config *cc = io->cc; in kcryptd_crypt_write_convert() local
2107 crypt_convert_init(cc, ctx, NULL, io->base_bio, io->sector); in kcryptd_crypt_write_convert()
2118 if (crypt_integrity_aead(cc)) { in kcryptd_crypt_write_convert()
2125 r = crypt_convert(cc, ctx, in kcryptd_crypt_write_convert()
2126 test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags), true); in kcryptd_crypt_write_convert()
2134 queue_work(cc->crypt_queue, &io->work); in kcryptd_crypt_write_convert()
2140 if (!crypt_finished && kcryptd_crypt_write_inline(cc, ctx)) { in kcryptd_crypt_write_convert()
2161 crypt_free_buffer_pages(io->cc, io->ctx.bio_in); in kcryptd_crypt_read_done()
2170 struct crypt_config *cc = io->cc; in kcryptd_crypt_read_continue() local
2176 r = crypt_convert(cc, &io->ctx, false, false); in kcryptd_crypt_read_continue()
2188 struct crypt_config *cc = io->cc; in kcryptd_crypt_read_convert() local
2194 r = crypt_convert(cc, &io->ctx, in kcryptd_crypt_read_convert()
2195 test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags), true); in kcryptd_crypt_read_convert()
2197 crypt_convert_init(cc, &io->ctx, io->base_bio, io->base_bio, in kcryptd_crypt_read_convert()
2200 r = crypt_convert(cc, &io->ctx, in kcryptd_crypt_read_convert()
2201 test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags), true); in kcryptd_crypt_read_convert()
2209 queue_work(cc->crypt_queue, &io->work); in kcryptd_crypt_read_convert()
2226 struct crypt_config *cc = io->cc; in kcryptd_async_done() local
2238 if (!error && cc->iv_gen_ops && cc->iv_gen_ops->post) in kcryptd_async_done()
2239 error = cc->iv_gen_ops->post(cc, org_iv_of_dmreq(cc, dmreq), dmreq); in kcryptd_async_done()
2242 sector_t s = le64_to_cpu(*org_sector_of_dmreq(cc, dmreq)); in kcryptd_async_done()
2255 crypt_free_req(cc, req_of_dmreq(cc, dmreq), io->base_bio); in kcryptd_async_done()
2269 if (kcryptd_crypt_write_inline(cc, ctx)) { in kcryptd_async_done()
2289 struct crypt_config *cc = io->cc; in kcryptd_queue_crypt() local
2291 if ((bio_data_dir(io->base_bio) == READ && test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags)) || in kcryptd_queue_crypt()
2292 (bio_data_dir(io->base_bio) == WRITE && test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags))) { in kcryptd_queue_crypt()
2309 queue_work(cc->crypt_queue, &io->work); in kcryptd_queue_crypt()
2312 static void crypt_free_tfms_aead(struct crypt_config *cc) in crypt_free_tfms_aead() argument
2314 if (!cc->cipher_tfm.tfms_aead) in crypt_free_tfms_aead()
2317 if (cc->cipher_tfm.tfms_aead[0] && !IS_ERR(cc->cipher_tfm.tfms_aead[0])) { in crypt_free_tfms_aead()
2318 crypto_free_aead(cc->cipher_tfm.tfms_aead[0]); in crypt_free_tfms_aead()
2319 cc->cipher_tfm.tfms_aead[0] = NULL; in crypt_free_tfms_aead()
2322 kfree(cc->cipher_tfm.tfms_aead); in crypt_free_tfms_aead()
2323 cc->cipher_tfm.tfms_aead = NULL; in crypt_free_tfms_aead()
2326 static void crypt_free_tfms_skcipher(struct crypt_config *cc) in crypt_free_tfms_skcipher() argument
2330 if (!cc->cipher_tfm.tfms) in crypt_free_tfms_skcipher()
2333 for (i = 0; i < cc->tfms_count; i++) in crypt_free_tfms_skcipher()
2334 if (cc->cipher_tfm.tfms[i] && !IS_ERR(cc->cipher_tfm.tfms[i])) { in crypt_free_tfms_skcipher()
2335 crypto_free_skcipher(cc->cipher_tfm.tfms[i]); in crypt_free_tfms_skcipher()
2336 cc->cipher_tfm.tfms[i] = NULL; in crypt_free_tfms_skcipher()
2339 kfree(cc->cipher_tfm.tfms); in crypt_free_tfms_skcipher()
2340 cc->cipher_tfm.tfms = NULL; in crypt_free_tfms_skcipher()
2343 static void crypt_free_tfms(struct crypt_config *cc) in crypt_free_tfms() argument
2345 if (crypt_integrity_aead(cc)) in crypt_free_tfms()
2346 crypt_free_tfms_aead(cc); in crypt_free_tfms()
2348 crypt_free_tfms_skcipher(cc); in crypt_free_tfms()
2351 static int crypt_alloc_tfms_skcipher(struct crypt_config *cc, char *ciphermode) in crypt_alloc_tfms_skcipher() argument
2356 cc->cipher_tfm.tfms = kcalloc(cc->tfms_count, in crypt_alloc_tfms_skcipher()
2359 if (!cc->cipher_tfm.tfms) in crypt_alloc_tfms_skcipher()
2362 for (i = 0; i < cc->tfms_count; i++) { in crypt_alloc_tfms_skcipher()
2363 cc->cipher_tfm.tfms[i] = crypto_alloc_skcipher(ciphermode, 0, in crypt_alloc_tfms_skcipher()
2365 if (IS_ERR(cc->cipher_tfm.tfms[i])) { in crypt_alloc_tfms_skcipher()
2366 err = PTR_ERR(cc->cipher_tfm.tfms[i]); in crypt_alloc_tfms_skcipher()
2367 crypt_free_tfms(cc); in crypt_alloc_tfms_skcipher()
2378 crypto_skcipher_alg(any_tfm(cc))->base.cra_driver_name); in crypt_alloc_tfms_skcipher()
2382 static int crypt_alloc_tfms_aead(struct crypt_config *cc, char *ciphermode) in crypt_alloc_tfms_aead() argument
2386 cc->cipher_tfm.tfms = kmalloc(sizeof(struct crypto_aead *), GFP_KERNEL); in crypt_alloc_tfms_aead()
2387 if (!cc->cipher_tfm.tfms) in crypt_alloc_tfms_aead()
2390 cc->cipher_tfm.tfms_aead[0] = crypto_alloc_aead(ciphermode, 0, in crypt_alloc_tfms_aead()
2392 if (IS_ERR(cc->cipher_tfm.tfms_aead[0])) { in crypt_alloc_tfms_aead()
2393 err = PTR_ERR(cc->cipher_tfm.tfms_aead[0]); in crypt_alloc_tfms_aead()
2394 crypt_free_tfms(cc); in crypt_alloc_tfms_aead()
2399 crypto_aead_alg(any_tfm_aead(cc))->base.cra_driver_name); in crypt_alloc_tfms_aead()
2403 static int crypt_alloc_tfms(struct crypt_config *cc, char *ciphermode) in crypt_alloc_tfms() argument
2405 if (crypt_integrity_aead(cc)) in crypt_alloc_tfms()
2406 return crypt_alloc_tfms_aead(cc, ciphermode); in crypt_alloc_tfms()
2408 return crypt_alloc_tfms_skcipher(cc, ciphermode); in crypt_alloc_tfms()
2411 static unsigned int crypt_subkey_size(struct crypt_config *cc) in crypt_subkey_size() argument
2413 return (cc->key_size - cc->key_extra_size) >> ilog2(cc->tfms_count); in crypt_subkey_size()
2416 static unsigned int crypt_authenckey_size(struct crypt_config *cc) in crypt_authenckey_size() argument
2418 return crypt_subkey_size(cc) + RTA_SPACE(sizeof(struct crypto_authenc_key_param)); in crypt_authenckey_size()
2424 * This funcion converts cc->key to this special format.
2443 static int crypt_setkey(struct crypt_config *cc) in crypt_setkey() argument
2449 subkey_size = crypt_subkey_size(cc); in crypt_setkey()
2451 if (crypt_integrity_hmac(cc)) { in crypt_setkey()
2452 if (subkey_size < cc->key_mac_size) in crypt_setkey()
2455 crypt_copy_authenckey(cc->authenc_key, cc->key, in crypt_setkey()
2456 subkey_size - cc->key_mac_size, in crypt_setkey()
2457 cc->key_mac_size); in crypt_setkey()
2460 for (i = 0; i < cc->tfms_count; i++) { in crypt_setkey()
2461 if (crypt_integrity_hmac(cc)) in crypt_setkey()
2462 r = crypto_aead_setkey(cc->cipher_tfm.tfms_aead[i], in crypt_setkey()
2463 cc->authenc_key, crypt_authenckey_size(cc)); in crypt_setkey()
2464 else if (crypt_integrity_aead(cc)) in crypt_setkey()
2465 r = crypto_aead_setkey(cc->cipher_tfm.tfms_aead[i], in crypt_setkey()
2466 cc->key + (i * subkey_size), in crypt_setkey()
2469 r = crypto_skcipher_setkey(cc->cipher_tfm.tfms[i], in crypt_setkey()
2470 cc->key + (i * subkey_size), in crypt_setkey()
2476 if (crypt_integrity_hmac(cc)) in crypt_setkey()
2477 memzero_explicit(cc->authenc_key, crypt_authenckey_size(cc)); in crypt_setkey()
2492 static int set_key_user(struct crypt_config *cc, struct key *key) in set_key_user() argument
2500 if (cc->key_size != ukp->datalen) in set_key_user()
2503 memcpy(cc->key, ukp->data, cc->key_size); in set_key_user()
2508 static int set_key_encrypted(struct crypt_config *cc, struct key *key) in set_key_encrypted() argument
2516 if (cc->key_size != ekp->decrypted_datalen) in set_key_encrypted()
2519 memcpy(cc->key, ekp->decrypted_data, cc->key_size); in set_key_encrypted()
2524 static int set_key_trusted(struct crypt_config *cc, struct key *key) in set_key_trusted() argument
2532 if (cc->key_size != tkp->key_len) in set_key_trusted()
2535 memcpy(cc->key, tkp->key, cc->key_size); in set_key_trusted()
2540 static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string) in crypt_set_keyring_key() argument
2546 int (*set_key)(struct crypt_config *cc, struct key *key); in crypt_set_keyring_key()
2591 ret = set_key(cc, key); in crypt_set_keyring_key()
2598 clear_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_keyring_key()
2600 ret = crypt_setkey(cc); in crypt_set_keyring_key()
2604 set_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_keyring_key()
2605 kfree_sensitive(cc->key_string); in crypt_set_keyring_key()
2606 cc->key_string = new_key_string; in crypt_set_keyring_key()
2639 static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string) in crypt_set_keyring_key() argument
2651 static int crypt_set_key(struct crypt_config *cc, char *key) in crypt_set_key() argument
2657 if (!cc->key_size && strcmp(key, "-")) in crypt_set_key()
2662 r = crypt_set_keyring_key(cc, key + 1); in crypt_set_key()
2667 clear_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_key()
2670 kfree_sensitive(cc->key_string); in crypt_set_key()
2671 cc->key_string = NULL; in crypt_set_key()
2674 if (cc->key_size && hex2bin(cc->key, key, cc->key_size) < 0) in crypt_set_key()
2677 r = crypt_setkey(cc); in crypt_set_key()
2679 set_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_key()
2688 static int crypt_wipe_key(struct crypt_config *cc) in crypt_wipe_key() argument
2692 clear_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_wipe_key()
2693 get_random_bytes(&cc->key, cc->key_size); in crypt_wipe_key()
2696 if (cc->iv_gen_ops && cc->iv_gen_ops->wipe) { in crypt_wipe_key()
2697 r = cc->iv_gen_ops->wipe(cc); in crypt_wipe_key()
2702 kfree_sensitive(cc->key_string); in crypt_wipe_key()
2703 cc->key_string = NULL; in crypt_wipe_key()
2704 r = crypt_setkey(cc); in crypt_wipe_key()
2705 memset(&cc->key, 0, cc->key_size * sizeof(u8)); in crypt_wipe_key()
2725 struct crypt_config *cc = pool_data; in crypt_page_alloc() local
2733 if (unlikely(percpu_counter_read_positive(&cc->n_allocated_pages) >= dm_crypt_pages_per_client) && in crypt_page_alloc()
2739 percpu_counter_add(&cc->n_allocated_pages, 1); in crypt_page_alloc()
2746 struct crypt_config *cc = pool_data; in crypt_page_free() local
2749 percpu_counter_sub(&cc->n_allocated_pages, 1); in crypt_page_free()
2754 struct crypt_config *cc = ti->private; in crypt_dtr() local
2758 if (!cc) in crypt_dtr()
2761 if (cc->write_thread) in crypt_dtr()
2762 kthread_stop(cc->write_thread); in crypt_dtr()
2764 if (cc->io_queue) in crypt_dtr()
2765 destroy_workqueue(cc->io_queue); in crypt_dtr()
2766 if (cc->crypt_queue) in crypt_dtr()
2767 destroy_workqueue(cc->crypt_queue); in crypt_dtr()
2769 if (cc->workqueue_id) in crypt_dtr()
2770 ida_free(&workqueue_ida, cc->workqueue_id); in crypt_dtr()
2772 crypt_free_tfms(cc); in crypt_dtr()
2774 bioset_exit(&cc->bs); in crypt_dtr()
2776 mempool_exit(&cc->page_pool); in crypt_dtr()
2777 mempool_exit(&cc->req_pool); in crypt_dtr()
2778 mempool_exit(&cc->tag_pool); in crypt_dtr()
2780 WARN_ON(percpu_counter_sum(&cc->n_allocated_pages) != 0); in crypt_dtr()
2781 percpu_counter_destroy(&cc->n_allocated_pages); in crypt_dtr()
2783 if (cc->iv_gen_ops && cc->iv_gen_ops->dtr) in crypt_dtr()
2784 cc->iv_gen_ops->dtr(cc); in crypt_dtr()
2786 if (cc->dev) in crypt_dtr()
2787 dm_put_device(ti, cc->dev); in crypt_dtr()
2789 kfree_sensitive(cc->cipher_string); in crypt_dtr()
2790 kfree_sensitive(cc->key_string); in crypt_dtr()
2791 kfree_sensitive(cc->cipher_auth); in crypt_dtr()
2792 kfree_sensitive(cc->authenc_key); in crypt_dtr()
2794 mutex_destroy(&cc->bio_alloc_lock); in crypt_dtr()
2797 kfree_sensitive(cc); in crypt_dtr()
2810 struct crypt_config *cc = ti->private; in crypt_ctr_ivmode() local
2812 if (crypt_integrity_aead(cc)) in crypt_ctr_ivmode()
2813 cc->iv_size = crypto_aead_ivsize(any_tfm_aead(cc)); in crypt_ctr_ivmode()
2815 cc->iv_size = crypto_skcipher_ivsize(any_tfm(cc)); in crypt_ctr_ivmode()
2817 if (cc->iv_size) in crypt_ctr_ivmode()
2819 cc->iv_size = max(cc->iv_size, in crypt_ctr_ivmode()
2828 cc->iv_gen_ops = NULL; in crypt_ctr_ivmode()
2830 cc->iv_gen_ops = &crypt_iv_plain_ops; in crypt_ctr_ivmode()
2832 cc->iv_gen_ops = &crypt_iv_plain64_ops; in crypt_ctr_ivmode()
2834 cc->iv_gen_ops = &crypt_iv_plain64be_ops; in crypt_ctr_ivmode()
2836 cc->iv_gen_ops = &crypt_iv_essiv_ops; in crypt_ctr_ivmode()
2838 cc->iv_gen_ops = &crypt_iv_benbi_ops; in crypt_ctr_ivmode()
2840 cc->iv_gen_ops = &crypt_iv_null_ops; in crypt_ctr_ivmode()
2842 cc->iv_gen_ops = &crypt_iv_eboiv_ops; in crypt_ctr_ivmode()
2844 cc->iv_gen_ops = &crypt_iv_elephant_ops; in crypt_ctr_ivmode()
2845 cc->key_parts = 2; in crypt_ctr_ivmode()
2846 cc->key_extra_size = cc->key_size / 2; in crypt_ctr_ivmode()
2847 if (cc->key_extra_size > ELEPHANT_MAX_KEY_SIZE) in crypt_ctr_ivmode()
2849 set_bit(CRYPT_ENCRYPT_PREPROCESS, &cc->cipher_flags); in crypt_ctr_ivmode()
2851 cc->iv_gen_ops = &crypt_iv_lmk_ops; in crypt_ctr_ivmode()
2858 if (cc->key_size % cc->key_parts) { in crypt_ctr_ivmode()
2859 cc->key_parts++; in crypt_ctr_ivmode()
2860 cc->key_extra_size = cc->key_size / cc->key_parts; in crypt_ctr_ivmode()
2863 cc->iv_gen_ops = &crypt_iv_tcw_ops; in crypt_ctr_ivmode()
2864 cc->key_parts += 2; /* IV + whitening */ in crypt_ctr_ivmode()
2865 cc->key_extra_size = cc->iv_size + TCW_WHITENING_SIZE; in crypt_ctr_ivmode()
2867 cc->iv_gen_ops = &crypt_iv_random_ops; in crypt_ctr_ivmode()
2869 cc->integrity_iv_size = cc->iv_size; in crypt_ctr_ivmode()
2883 static int crypt_ctr_auth_cipher(struct crypt_config *cc, char *cipher_api) in crypt_ctr_auth_cipher() argument
2906 if (!test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags)) in crypt_ctr_auth_cipher()
2907 cc->key_mac_size = crypto_ahash_digestsize(mac); in crypt_ctr_auth_cipher()
2910 cc->authenc_key = kmalloc(crypt_authenckey_size(cc), GFP_KERNEL); in crypt_ctr_auth_cipher()
2911 if (!cc->authenc_key) in crypt_ctr_auth_cipher()
2920 struct crypt_config *cc = ti->private; in crypt_ctr_cipher_new() local
2924 cc->tfms_count = 1; in crypt_ctr_cipher_new()
2948 if (crypt_integrity_aead(cc)) { in crypt_ctr_cipher_new()
2949 ret = crypt_ctr_auth_cipher(cc, cipher_api); in crypt_ctr_cipher_new()
2957 cc->tfms_count = 64; in crypt_ctr_cipher_new()
2973 cc->key_parts = cc->tfms_count; in crypt_ctr_cipher_new()
2976 ret = crypt_alloc_tfms(cc, cipher_api); in crypt_ctr_cipher_new()
2982 if (crypt_integrity_aead(cc)) in crypt_ctr_cipher_new()
2983 cc->iv_size = crypto_aead_ivsize(any_tfm_aead(cc)); in crypt_ctr_cipher_new()
2985 cc->iv_size = crypto_skcipher_ivsize(any_tfm(cc)); in crypt_ctr_cipher_new()
2993 struct crypt_config *cc = ti->private; in crypt_ctr_cipher_old() local
2999 if (strchr(cipher_in, '(') || crypt_integrity_aead(cc)) { in crypt_ctr_cipher_old()
3013 cc->tfms_count = 1; in crypt_ctr_cipher_old()
3014 else if (sscanf(keycount, "%u%c", &cc->tfms_count, &dummy) != 1 || in crypt_ctr_cipher_old()
3015 !is_power_of_2(cc->tfms_count)) { in crypt_ctr_cipher_old()
3019 cc->key_parts = cc->tfms_count; in crypt_ctr_cipher_old()
3061 ret = crypt_alloc_tfms(cc, cipher_api); in crypt_ctr_cipher_old()
3077 struct crypt_config *cc = ti->private; in crypt_ctr_cipher() local
3081 cc->cipher_string = kstrdup(cipher_in, GFP_KERNEL); in crypt_ctr_cipher()
3082 if (!cc->cipher_string) { in crypt_ctr_cipher()
3100 ret = crypt_set_key(cc, key); in crypt_ctr_cipher()
3107 if (cc->iv_gen_ops && cc->iv_gen_ops->ctr) { in crypt_ctr_cipher()
3108 ret = cc->iv_gen_ops->ctr(cc, ti, ivopts); in crypt_ctr_cipher()
3116 if (cc->iv_gen_ops && cc->iv_gen_ops->init) { in crypt_ctr_cipher()
3117 ret = cc->iv_gen_ops->init(cc); in crypt_ctr_cipher()
3125 if (cc->key_string) in crypt_ctr_cipher()
3126 memset(cc->key, 0, cc->key_size * sizeof(u8)); in crypt_ctr_cipher()
3133 struct crypt_config *cc = ti->private; in crypt_ctr_optional() local
3162 set_bit(DM_CRYPT_SAME_CPU, &cc->flags); in crypt_ctr_optional()
3164 set_bit(DM_CRYPT_HIGH_PRIORITY, &cc->flags); in crypt_ctr_optional()
3167 set_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags); in crypt_ctr_optional()
3169 set_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags); in crypt_ctr_optional()
3171 set_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags); in crypt_ctr_optional()
3177 cc->used_tag_size = val; in crypt_ctr_optional()
3180 set_bit(CRYPT_MODE_INTEGRITY_AEAD, &cc->cipher_flags); in crypt_ctr_optional()
3186 cc->cipher_auth = kstrdup(sval, GFP_KERNEL); in crypt_ctr_optional()
3187 if (!cc->cipher_auth) in crypt_ctr_optional()
3194 cc->key_mac_size = val; in crypt_ctr_optional()
3195 set_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags); in crypt_ctr_optional()
3196 } else if (sscanf(opt_string, "sector_size:%hu%c", &cc->sector_size, &dummy) == 1) { in crypt_ctr_optional()
3197 if (cc->sector_size < (1 << SECTOR_SHIFT) || in crypt_ctr_optional()
3198 cc->sector_size > 4096 || in crypt_ctr_optional()
3199 (cc->sector_size & (cc->sector_size - 1))) { in crypt_ctr_optional()
3203 if (ti->len & ((cc->sector_size >> SECTOR_SHIFT) - 1)) { in crypt_ctr_optional()
3207 cc->sector_shift = __ffs(cc->sector_size) - SECTOR_SHIFT; in crypt_ctr_optional()
3209 set_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags); in crypt_ctr_optional()
3223 struct crypt_config *cc = ti->private; in crypt_report_zones() local
3225 return dm_report_zones(cc->dev->bdev, cc->start, in crypt_report_zones()
3226 cc->start + dm_target_offset(ti, args->next_sector), in crypt_report_zones()
3239 struct crypt_config *cc; in crypt_ctr() local
3260 cc = kzalloc(struct_size(cc, key, key_size), GFP_KERNEL); in crypt_ctr()
3261 if (!cc) { in crypt_ctr()
3265 cc->key_size = key_size; in crypt_ctr()
3266 cc->sector_size = (1 << SECTOR_SHIFT); in crypt_ctr()
3267 cc->sector_shift = 0; in crypt_ctr()
3269 ti->private = cc; in crypt_ctr()
3276 ret = percpu_counter_init(&cc->n_allocated_pages, 0, GFP_KERNEL); in crypt_ctr()
3291 if (crypt_integrity_aead(cc)) { in crypt_ctr()
3292 cc->dmreq_start = sizeof(struct aead_request); in crypt_ctr()
3293 cc->dmreq_start += crypto_aead_reqsize(any_tfm_aead(cc)); in crypt_ctr()
3294 align_mask = crypto_aead_alignmask(any_tfm_aead(cc)); in crypt_ctr()
3296 cc->dmreq_start = sizeof(struct skcipher_request); in crypt_ctr()
3297 cc->dmreq_start += crypto_skcipher_reqsize(any_tfm(cc)); in crypt_ctr()
3298 align_mask = crypto_skcipher_alignmask(any_tfm(cc)); in crypt_ctr()
3300 cc->dmreq_start = ALIGN(cc->dmreq_start, __alignof__(struct dm_crypt_request)); in crypt_ctr()
3304 iv_size_padding = -(cc->dmreq_start + sizeof(struct dm_crypt_request)) in crypt_ctr()
3317 iv_size_padding + cc->iv_size + in crypt_ctr()
3318 cc->iv_size + in crypt_ctr()
3322 ret = mempool_init_kmalloc_pool(&cc->req_pool, MIN_IOS, cc->dmreq_start + additional_req_size); in crypt_ctr()
3328 cc->per_bio_data_size = ti->per_io_data_size = in crypt_ctr()
3329 ALIGN(sizeof(struct dm_crypt_io) + cc->dmreq_start + additional_req_size, in crypt_ctr()
3332 ret = mempool_init(&cc->page_pool, BIO_MAX_VECS, crypt_page_alloc, crypt_page_free, cc); in crypt_ctr()
3338 ret = bioset_init(&cc->bs, MIN_IOS, 0, BIOSET_NEED_BVECS); in crypt_ctr()
3344 mutex_init(&cc->bio_alloc_lock); in crypt_ctr()
3348 (tmpll & ((cc->sector_size >> SECTOR_SHIFT) - 1))) { in crypt_ctr()
3352 cc->iv_offset = tmpll; in crypt_ctr()
3354 ret = dm_get_device(ti, argv[3], dm_table_get_mode(ti->table), &cc->dev); in crypt_ctr()
3365 cc->start = tmpll; in crypt_ctr()
3367 if (bdev_is_zoned(cc->dev->bdev)) { in crypt_ctr()
3373 set_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags); in crypt_ctr()
3374 set_bit(DM_CRYPT_WRITE_INLINE, &cc->flags); in crypt_ctr()
3391 if (crypt_integrity_aead(cc) || cc->integrity_iv_size) { in crypt_ctr()
3392 ret = crypt_integrity_ctr(cc, ti); in crypt_ctr()
3396 cc->tag_pool_max_sectors = POOL_ENTRY_SIZE / cc->tuple_size; in crypt_ctr()
3397 if (!cc->tag_pool_max_sectors) in crypt_ctr()
3398 cc->tag_pool_max_sectors = 1; in crypt_ctr()
3400 ret = mempool_init_kmalloc_pool(&cc->tag_pool, MIN_IOS, in crypt_ctr()
3401 cc->tag_pool_max_sectors * cc->tuple_size); in crypt_ctr()
3407 cc->tag_pool_max_sectors <<= cc->sector_shift; in crypt_ctr()
3416 cc->workqueue_id = wq_id; in crypt_ctr()
3420 if (test_bit(DM_CRYPT_HIGH_PRIORITY, &cc->flags)) in crypt_ctr()
3423 cc->io_queue = alloc_workqueue("kcryptd_io-%s-%d", common_wq_flags, 1, devname, wq_id); in crypt_ctr()
3424 if (!cc->io_queue) { in crypt_ctr()
3429 if (test_bit(DM_CRYPT_SAME_CPU, &cc->flags)) { in crypt_ctr()
3430 cc->crypt_queue = alloc_workqueue("kcryptd-%s-%d", in crypt_ctr()
3438 cc->crypt_queue = alloc_workqueue("kcryptd-%s-%d", in crypt_ctr()
3442 if (!cc->crypt_queue) { in crypt_ctr()
3447 spin_lock_init(&cc->write_thread_lock); in crypt_ctr()
3448 cc->write_tree = RB_ROOT; in crypt_ctr()
3450 cc->write_thread = kthread_run(dmcrypt_write, cc, "dmcrypt_write/%s", devname); in crypt_ctr()
3451 if (IS_ERR(cc->write_thread)) { in crypt_ctr()
3452 ret = PTR_ERR(cc->write_thread); in crypt_ctr()
3453 cc->write_thread = NULL; in crypt_ctr()
3457 if (test_bit(DM_CRYPT_HIGH_PRIORITY, &cc->flags)) in crypt_ctr()
3458 set_user_nice(cc->write_thread, MIN_NICE); in crypt_ctr()
3476 struct crypt_config *cc = ti->private; in crypt_map() local
3486 bio_set_dev(bio, cc->dev->bdev); in crypt_map()
3488 bio->bi_iter.bi_sector = cc->start + in crypt_map()
3496 max_sectors = get_max_request_size(cc, bio_data_dir(bio) == WRITE); in crypt_map()
3504 if (unlikely((bio->bi_iter.bi_sector & ((cc->sector_size >> SECTOR_SHIFT) - 1)) != 0)) in crypt_map()
3507 if (unlikely(bio->bi_iter.bi_size & (cc->sector_size - 1))) in crypt_map()
3510 io = dm_per_bio_data(bio, cc->per_bio_data_size); in crypt_map()
3511 crypt_io_init(io, cc, bio, dm_target_offset(ti, bio->bi_iter.bi_sector)); in crypt_map()
3513 if (cc->tuple_size) { in crypt_map()
3514 unsigned int tag_len = cc->tuple_size * (bio_sectors(bio) >> cc->sector_shift); in crypt_map()
3522 if (bio_sectors(bio) > cc->tag_pool_max_sectors) in crypt_map()
3523 dm_accept_partial_bio(bio, cc->tag_pool_max_sectors); in crypt_map()
3524 io->integrity_metadata = mempool_alloc(&cc->tag_pool, GFP_NOIO); in crypt_map()
3529 if (crypt_integrity_aead(cc)) in crypt_map()
3551 struct crypt_config *cc = ti->private; in crypt_status() local
3561 DMEMIT("%s ", cc->cipher_string); in crypt_status()
3563 if (cc->key_size > 0) { in crypt_status()
3564 if (cc->key_string) in crypt_status()
3565 DMEMIT(":%u:%s", cc->key_size, cc->key_string); in crypt_status()
3567 for (i = 0; i < cc->key_size; i++) { in crypt_status()
3568 DMEMIT("%c%c", hex2asc(cc->key[i] >> 4), in crypt_status()
3569 hex2asc(cc->key[i] & 0xf)); in crypt_status()
3575 DMEMIT(" %llu %s %llu", (unsigned long long)cc->iv_offset, in crypt_status()
3576 cc->dev->name, (unsigned long long)cc->start); in crypt_status()
3579 num_feature_args += test_bit(DM_CRYPT_SAME_CPU, &cc->flags); in crypt_status()
3580 num_feature_args += test_bit(DM_CRYPT_HIGH_PRIORITY, &cc->flags); in crypt_status()
3581 num_feature_args += test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags); in crypt_status()
3582 num_feature_args += test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags); in crypt_status()
3583 num_feature_args += test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags); in crypt_status()
3584 num_feature_args += !!cc->used_tag_size; in crypt_status()
3585 num_feature_args += cc->sector_size != (1 << SECTOR_SHIFT); in crypt_status()
3586 num_feature_args += test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags); in crypt_status()
3587 num_feature_args += test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags); in crypt_status()
3592 if (test_bit(DM_CRYPT_SAME_CPU, &cc->flags)) in crypt_status()
3594 if (test_bit(DM_CRYPT_HIGH_PRIORITY, &cc->flags)) in crypt_status()
3596 if (test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags)) in crypt_status()
3598 if (test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags)) in crypt_status()
3600 if (test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags)) in crypt_status()
3602 if (cc->used_tag_size) in crypt_status()
3603 DMEMIT(" integrity:%u:%s", cc->used_tag_size, cc->cipher_auth); in crypt_status()
3604 if (cc->sector_size != (1 << SECTOR_SHIFT)) in crypt_status()
3605 DMEMIT(" sector_size:%d", cc->sector_size); in crypt_status()
3606 if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags)) in crypt_status()
3608 if (test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags)) in crypt_status()
3609 DMEMIT(" integrity_key_size:%u", cc->key_mac_size); in crypt_status()
3616 DMEMIT(",same_cpu_crypt=%c", test_bit(DM_CRYPT_SAME_CPU, &cc->flags) ? 'y' : 'n'); in crypt_status()
3617 DMEMIT(",high_priority=%c", test_bit(DM_CRYPT_HIGH_PRIORITY, &cc->flags) ? 'y' : 'n'); in crypt_status()
3618 DMEMIT(",submit_from_crypt_cpus=%c", test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags) ? in crypt_status()
3620 DMEMIT(",no_read_workqueue=%c", test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags) ? in crypt_status()
3622 DMEMIT(",no_write_workqueue=%c", test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags) ? in crypt_status()
3624 DMEMIT(",iv_large_sectors=%c", test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags) ? in crypt_status()
3627 if (cc->used_tag_size) in crypt_status()
3629 cc->used_tag_size, cc->cipher_auth); in crypt_status()
3630 if (cc->sector_size != (1 << SECTOR_SHIFT)) in crypt_status()
3631 DMEMIT(",sector_size=%d", cc->sector_size); in crypt_status()
3632 if (cc->cipher_string) in crypt_status()
3633 DMEMIT(",cipher_string=%s", cc->cipher_string); in crypt_status()
3635 DMEMIT(",key_size=%u", cc->key_size); in crypt_status()
3636 DMEMIT(",key_parts=%u", cc->key_parts); in crypt_status()
3637 DMEMIT(",key_extra_size=%u", cc->key_extra_size); in crypt_status()
3638 DMEMIT(",key_mac_size=%u", cc->key_mac_size); in crypt_status()
3646 struct crypt_config *cc = ti->private; in crypt_postsuspend() local
3648 set_bit(DM_CRYPT_SUSPENDED, &cc->flags); in crypt_postsuspend()
3653 struct crypt_config *cc = ti->private; in crypt_preresume() local
3655 if (!test_bit(DM_CRYPT_KEY_VALID, &cc->flags)) { in crypt_preresume()
3665 struct crypt_config *cc = ti->private; in crypt_resume() local
3667 clear_bit(DM_CRYPT_SUSPENDED, &cc->flags); in crypt_resume()
3677 struct crypt_config *cc = ti->private; in crypt_message() local
3684 if (!test_bit(DM_CRYPT_SUSPENDED, &cc->flags)) { in crypt_message()
3691 if (key_size < 0 || cc->key_size != key_size) { in crypt_message()
3696 ret = crypt_set_key(cc, argv[2]); in crypt_message()
3699 if (cc->iv_gen_ops && cc->iv_gen_ops->init) in crypt_message()
3700 ret = cc->iv_gen_ops->init(cc); in crypt_message()
3702 if (cc->key_string) in crypt_message()
3703 memset(cc->key, 0, cc->key_size * sizeof(u8)); in crypt_message()
3707 return crypt_wipe_key(cc); in crypt_message()
3718 struct crypt_config *cc = ti->private; in crypt_iterate_devices() local
3720 return fn(ti, cc->dev, cc->start, ti->len, data); in crypt_iterate_devices()
3725 struct crypt_config *cc = ti->private; in crypt_io_hints() local
3728 max_t(unsigned int, limits->logical_block_size, cc->sector_size); in crypt_io_hints()
3730 max_t(unsigned int, limits->physical_block_size, cc->sector_size); in crypt_io_hints()
3731 limits->io_min = max_t(unsigned int, limits->io_min, cc->sector_size); in crypt_io_hints()