Lines Matching full:cc
67 struct crypt_config *cc; member
93 int (*ctr)(struct crypt_config *cc, struct dm_target *ti,
95 void (*dtr)(struct crypt_config *cc);
96 int (*init)(struct crypt_config *cc);
97 int (*wipe)(struct crypt_config *cc);
98 int (*generator)(struct crypt_config *cc, u8 *iv,
100 int (*post)(struct crypt_config *cc, u8 *iv,
235 static struct scatterlist *crypt_get_sg_data(struct crypt_config *cc,
238 static bool crypt_integrity_aead(struct crypt_config *cc);
243 static struct crypto_skcipher *any_tfm(struct crypt_config *cc) in any_tfm() argument
245 return cc->cipher_tfm.tfms[0]; in any_tfm()
248 static struct crypto_aead *any_tfm_aead(struct crypt_config *cc) in any_tfm_aead() argument
250 return cc->cipher_tfm.tfms_aead[0]; in any_tfm_aead()
309 static int crypt_iv_plain_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_plain_gen() argument
312 memset(iv, 0, cc->iv_size); in crypt_iv_plain_gen()
318 static int crypt_iv_plain64_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_plain64_gen() argument
321 memset(iv, 0, cc->iv_size); in crypt_iv_plain64_gen()
327 static int crypt_iv_plain64be_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_plain64be_gen() argument
330 memset(iv, 0, cc->iv_size); in crypt_iv_plain64be_gen()
332 *(__be64 *)&iv[cc->iv_size - sizeof(u64)] = cpu_to_be64(dmreq->iv_sector); in crypt_iv_plain64be_gen()
337 static int crypt_iv_essiv_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_essiv_gen() argument
344 memset(iv, 0, cc->iv_size); in crypt_iv_essiv_gen()
350 static int crypt_iv_benbi_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_benbi_ctr() argument
356 if (crypt_integrity_aead(cc)) in crypt_iv_benbi_ctr()
357 bs = crypto_aead_blocksize(any_tfm_aead(cc)); in crypt_iv_benbi_ctr()
359 bs = crypto_skcipher_blocksize(any_tfm(cc)); in crypt_iv_benbi_ctr()
375 cc->iv_gen_private.benbi.shift = 9 - log; in crypt_iv_benbi_ctr()
380 static void crypt_iv_benbi_dtr(struct crypt_config *cc) in crypt_iv_benbi_dtr() argument
384 static int crypt_iv_benbi_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_benbi_gen() argument
389 memset(iv, 0, cc->iv_size - sizeof(u64)); /* rest is cleared below */ in crypt_iv_benbi_gen()
391 val = cpu_to_be64(((u64)dmreq->iv_sector << cc->iv_gen_private.benbi.shift) + 1); in crypt_iv_benbi_gen()
392 put_unaligned(val, (__be64 *)(iv + cc->iv_size - sizeof(u64))); in crypt_iv_benbi_gen()
397 static int crypt_iv_null_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_null_gen() argument
400 memset(iv, 0, cc->iv_size); in crypt_iv_null_gen()
405 static void crypt_iv_lmk_dtr(struct crypt_config *cc) in crypt_iv_lmk_dtr() argument
407 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_dtr()
417 static int crypt_iv_lmk_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_lmk_ctr() argument
420 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_ctr()
422 if (cc->sector_size != (1 << SECTOR_SHIFT)) { in crypt_iv_lmk_ctr()
435 if (cc->key_parts == cc->tfms_count) { in crypt_iv_lmk_ctr()
442 crypt_iv_lmk_dtr(cc); in crypt_iv_lmk_ctr()
450 static int crypt_iv_lmk_init(struct crypt_config *cc) in crypt_iv_lmk_init() argument
452 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_init()
453 int subkey_size = cc->key_size / cc->key_parts; in crypt_iv_lmk_init()
457 memcpy(lmk->seed, cc->key + (cc->tfms_count * subkey_size), in crypt_iv_lmk_init()
463 static int crypt_iv_lmk_wipe(struct crypt_config *cc) in crypt_iv_lmk_wipe() argument
465 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_wipe()
473 static int crypt_iv_lmk_one(struct crypt_config *cc, u8 *iv, in crypt_iv_lmk_one() argument
477 struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk; in crypt_iv_lmk_one()
516 memcpy(iv, &md5state.hash, cc->iv_size); in crypt_iv_lmk_one()
521 static int crypt_iv_lmk_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_lmk_gen() argument
529 sg = crypt_get_sg_data(cc, dmreq->sg_in); in crypt_iv_lmk_gen()
531 r = crypt_iv_lmk_one(cc, iv, dmreq, src + sg->offset); in crypt_iv_lmk_gen()
534 memset(iv, 0, cc->iv_size); in crypt_iv_lmk_gen()
539 static int crypt_iv_lmk_post(struct crypt_config *cc, u8 *iv, in crypt_iv_lmk_post() argument
549 sg = crypt_get_sg_data(cc, dmreq->sg_out); in crypt_iv_lmk_post()
551 r = crypt_iv_lmk_one(cc, iv, dmreq, dst + sg->offset); in crypt_iv_lmk_post()
555 crypto_xor(dst + sg->offset, iv, cc->iv_size); in crypt_iv_lmk_post()
561 static void crypt_iv_tcw_dtr(struct crypt_config *cc) in crypt_iv_tcw_dtr() argument
563 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_dtr()
575 static int crypt_iv_tcw_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_tcw_ctr() argument
578 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_ctr()
580 if (cc->sector_size != (1 << SECTOR_SHIFT)) { in crypt_iv_tcw_ctr()
585 if (cc->key_size <= (cc->iv_size + TCW_WHITENING_SIZE)) { in crypt_iv_tcw_ctr()
597 tcw->iv_seed = kzalloc(cc->iv_size, GFP_KERNEL); in crypt_iv_tcw_ctr()
600 crypt_iv_tcw_dtr(cc); in crypt_iv_tcw_ctr()
608 static int crypt_iv_tcw_init(struct crypt_config *cc) in crypt_iv_tcw_init() argument
610 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_init()
611 int key_offset = cc->key_size - cc->iv_size - TCW_WHITENING_SIZE; in crypt_iv_tcw_init()
613 memcpy(tcw->iv_seed, &cc->key[key_offset], cc->iv_size); in crypt_iv_tcw_init()
614 memcpy(tcw->whitening, &cc->key[key_offset + cc->iv_size], in crypt_iv_tcw_init()
620 static int crypt_iv_tcw_wipe(struct crypt_config *cc) in crypt_iv_tcw_wipe() argument
622 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_wipe()
624 memset(tcw->iv_seed, 0, cc->iv_size); in crypt_iv_tcw_wipe()
630 static int crypt_iv_tcw_whitening(struct crypt_config *cc, in crypt_iv_tcw_whitening() argument
634 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_whitening()
668 static int crypt_iv_tcw_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_tcw_gen() argument
672 struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw; in crypt_iv_tcw_gen()
679 sg = crypt_get_sg_data(cc, dmreq->sg_in); in crypt_iv_tcw_gen()
681 r = crypt_iv_tcw_whitening(cc, dmreq, src + sg->offset); in crypt_iv_tcw_gen()
687 if (cc->iv_size > 8) in crypt_iv_tcw_gen()
689 cc->iv_size - 8); in crypt_iv_tcw_gen()
694 static int crypt_iv_tcw_post(struct crypt_config *cc, u8 *iv, in crypt_iv_tcw_post() argument
705 sg = crypt_get_sg_data(cc, dmreq->sg_out); in crypt_iv_tcw_post()
707 r = crypt_iv_tcw_whitening(cc, dmreq, dst + sg->offset); in crypt_iv_tcw_post()
713 static int crypt_iv_random_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_random_gen() argument
717 get_random_bytes(iv, cc->iv_size); in crypt_iv_random_gen()
721 static int crypt_iv_eboiv_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_eboiv_ctr() argument
724 if (crypt_integrity_aead(cc)) { in crypt_iv_eboiv_ctr()
729 if (crypto_skcipher_blocksize(any_tfm(cc)) != cc->iv_size) { in crypt_iv_eboiv_ctr()
738 static int crypt_iv_eboiv_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_eboiv_gen() argument
747 req = skcipher_request_alloc(any_tfm(cc), GFP_NOIO); in crypt_iv_eboiv_gen()
751 memset(buf, 0, cc->iv_size); in crypt_iv_eboiv_gen()
752 *(__le64 *)buf = cpu_to_le64(dmreq->iv_sector * cc->sector_size); in crypt_iv_eboiv_gen()
754 sg_init_one(&src, page_address(ZERO_PAGE(0)), cc->iv_size); in crypt_iv_eboiv_gen()
755 sg_init_one(&dst, iv, cc->iv_size); in crypt_iv_eboiv_gen()
756 skcipher_request_set_crypt(req, &src, &dst, cc->iv_size, buf); in crypt_iv_eboiv_gen()
764 static void crypt_iv_elephant_dtr(struct crypt_config *cc) in crypt_iv_elephant_dtr() argument
766 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_dtr()
772 static int crypt_iv_elephant_ctr(struct crypt_config *cc, struct dm_target *ti, in crypt_iv_elephant_ctr() argument
775 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_ctr()
786 r = crypt_iv_eboiv_ctr(cc, ti, NULL); in crypt_iv_elephant_ctr()
788 crypt_iv_elephant_dtr(cc); in crypt_iv_elephant_ctr()
936 static int crypt_iv_elephant(struct crypt_config *cc, struct dm_crypt_request *dmreq) in crypt_iv_elephant() argument
938 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant()
954 *(__le64 *)es = cpu_to_le64(dmreq->iv_sector * cc->sector_size); in crypt_iv_elephant()
972 sg = crypt_get_sg_data(cc, dmreq->sg_out); in crypt_iv_elephant()
978 sg2 = crypt_get_sg_data(cc, dmreq->sg_in); in crypt_iv_elephant()
980 memcpy(data_offset, data2 + sg2->offset, cc->sector_size); in crypt_iv_elephant()
985 diffuser_disk_to_cpu((u32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
986 diffuser_b_decrypt((u32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
987 diffuser_a_decrypt((u32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
988 diffuser_cpu_to_disk((__le32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
991 for (i = 0; i < (cc->sector_size / 32); i++) in crypt_iv_elephant()
995 diffuser_disk_to_cpu((u32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
996 diffuser_a_encrypt((u32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
997 diffuser_b_encrypt((u32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
998 diffuser_cpu_to_disk((__le32*)data_offset, cc->sector_size / sizeof(u32)); in crypt_iv_elephant()
1009 static int crypt_iv_elephant_gen(struct crypt_config *cc, u8 *iv, in crypt_iv_elephant_gen() argument
1015 r = crypt_iv_elephant(cc, dmreq); in crypt_iv_elephant_gen()
1020 return crypt_iv_eboiv_gen(cc, iv, dmreq); in crypt_iv_elephant_gen()
1023 static int crypt_iv_elephant_post(struct crypt_config *cc, u8 *iv, in crypt_iv_elephant_post() argument
1027 return crypt_iv_elephant(cc, dmreq); in crypt_iv_elephant_post()
1032 static int crypt_iv_elephant_init(struct crypt_config *cc) in crypt_iv_elephant_init() argument
1034 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_init()
1035 int key_offset = cc->key_size - cc->key_extra_size; in crypt_iv_elephant_init()
1037 return crypto_skcipher_setkey(elephant->tfm, &cc->key[key_offset], cc->key_extra_size); in crypt_iv_elephant_init()
1040 static int crypt_iv_elephant_wipe(struct crypt_config *cc) in crypt_iv_elephant_wipe() argument
1042 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant; in crypt_iv_elephant_wipe()
1045 memset(key, 0, cc->key_extra_size); in crypt_iv_elephant_wipe()
1046 return crypto_skcipher_setkey(elephant->tfm, key, cc->key_extra_size); in crypt_iv_elephant_wipe()
1114 static bool crypt_integrity_aead(struct crypt_config *cc) in crypt_integrity_aead() argument
1116 return test_bit(CRYPT_MODE_INTEGRITY_AEAD, &cc->cipher_flags); in crypt_integrity_aead()
1119 static bool crypt_integrity_hmac(struct crypt_config *cc) in crypt_integrity_hmac() argument
1121 return crypt_integrity_aead(cc) && cc->key_mac_size; in crypt_integrity_hmac()
1125 static struct scatterlist *crypt_get_sg_data(struct crypt_config *cc, in crypt_get_sg_data() argument
1128 if (unlikely(crypt_integrity_aead(cc))) in crypt_get_sg_data()
1140 if (!bio_sectors(bio) || !io->cc->on_disk_tag_size) in dm_crypt_integrity_io_alloc()
1147 tag_len = io->cc->on_disk_tag_size * (bio_sectors(bio) >> io->cc->sector_shift); in dm_crypt_integrity_io_alloc()
1150 bip->bip_iter.bi_sector = io->cc->start + io->sector; in dm_crypt_integrity_io_alloc()
1160 static int crypt_integrity_ctr(struct crypt_config *cc, struct dm_target *ti) in crypt_integrity_ctr() argument
1163 struct blk_integrity *bi = blk_get_integrity(cc->dev->bdev->bd_disk); in crypt_integrity_ctr()
1172 if (bi->tag_size != cc->on_disk_tag_size || in crypt_integrity_ctr()
1173 bi->tuple_size != cc->on_disk_tag_size) { in crypt_integrity_ctr()
1177 if (1 << bi->interval_exp != cc->sector_size) { in crypt_integrity_ctr()
1182 if (crypt_integrity_aead(cc)) { in crypt_integrity_ctr()
1183 cc->integrity_tag_size = cc->on_disk_tag_size - cc->integrity_iv_size; in crypt_integrity_ctr()
1185 cc->integrity_tag_size, cc->integrity_iv_size); in crypt_integrity_ctr()
1187 if (crypto_aead_setauthsize(any_tfm_aead(cc), cc->integrity_tag_size)) { in crypt_integrity_ctr()
1191 } else if (cc->integrity_iv_size) in crypt_integrity_ctr()
1193 cc->integrity_iv_size); in crypt_integrity_ctr()
1195 if ((cc->integrity_tag_size + cc->integrity_iv_size) != bi->tag_size) { in crypt_integrity_ctr()
1207 static void crypt_convert_init(struct crypt_config *cc, in crypt_convert_init() argument
1218 ctx->cc_sector = sector + cc->iv_offset; in crypt_convert_init()
1222 static struct dm_crypt_request *dmreq_of_req(struct crypt_config *cc, in dmreq_of_req() argument
1225 return (struct dm_crypt_request *)((char *)req + cc->dmreq_start); in dmreq_of_req()
1228 static void *req_of_dmreq(struct crypt_config *cc, struct dm_crypt_request *dmreq) in req_of_dmreq() argument
1230 return (void *)((char *)dmreq - cc->dmreq_start); in req_of_dmreq()
1233 static u8 *iv_of_dmreq(struct crypt_config *cc, in iv_of_dmreq() argument
1236 if (crypt_integrity_aead(cc)) in iv_of_dmreq()
1238 crypto_aead_alignmask(any_tfm_aead(cc)) + 1); in iv_of_dmreq()
1241 crypto_skcipher_alignmask(any_tfm(cc)) + 1); in iv_of_dmreq()
1244 static u8 *org_iv_of_dmreq(struct crypt_config *cc, in org_iv_of_dmreq() argument
1247 return iv_of_dmreq(cc, dmreq) + cc->iv_size; in org_iv_of_dmreq()
1250 static __le64 *org_sector_of_dmreq(struct crypt_config *cc, in org_sector_of_dmreq() argument
1253 u8 *ptr = iv_of_dmreq(cc, dmreq) + cc->iv_size + cc->iv_size; in org_sector_of_dmreq()
1257 static unsigned int *org_tag_of_dmreq(struct crypt_config *cc, in org_tag_of_dmreq() argument
1260 u8 *ptr = iv_of_dmreq(cc, dmreq) + cc->iv_size + in org_tag_of_dmreq()
1261 cc->iv_size + sizeof(uint64_t); in org_tag_of_dmreq()
1265 static void *tag_from_dmreq(struct crypt_config *cc, in tag_from_dmreq() argument
1271 return &io->integrity_metadata[*org_tag_of_dmreq(cc, dmreq) * in tag_from_dmreq()
1272 cc->on_disk_tag_size]; in tag_from_dmreq()
1275 static void *iv_tag_from_dmreq(struct crypt_config *cc, in iv_tag_from_dmreq() argument
1278 return tag_from_dmreq(cc, dmreq) + cc->integrity_tag_size; in iv_tag_from_dmreq()
1281 static int crypt_convert_block_aead(struct crypt_config *cc, in crypt_convert_block_aead() argument
1293 BUG_ON(cc->integrity_iv_size && cc->integrity_iv_size != cc->iv_size); in crypt_convert_block_aead()
1296 if (unlikely(bv_in.bv_len & (cc->sector_size - 1))) in crypt_convert_block_aead()
1299 dmreq = dmreq_of_req(cc, req); in crypt_convert_block_aead()
1301 if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags)) in crypt_convert_block_aead()
1302 dmreq->iv_sector >>= cc->sector_shift; in crypt_convert_block_aead()
1305 *org_tag_of_dmreq(cc, dmreq) = tag_offset; in crypt_convert_block_aead()
1307 sector = org_sector_of_dmreq(cc, dmreq); in crypt_convert_block_aead()
1308 *sector = cpu_to_le64(ctx->cc_sector - cc->iv_offset); in crypt_convert_block_aead()
1310 iv = iv_of_dmreq(cc, dmreq); in crypt_convert_block_aead()
1311 org_iv = org_iv_of_dmreq(cc, dmreq); in crypt_convert_block_aead()
1312 tag = tag_from_dmreq(cc, dmreq); in crypt_convert_block_aead()
1313 tag_iv = iv_tag_from_dmreq(cc, dmreq); in crypt_convert_block_aead()
1322 sg_set_buf(&dmreq->sg_in[1], org_iv, cc->iv_size); in crypt_convert_block_aead()
1323 sg_set_page(&dmreq->sg_in[2], bv_in.bv_page, cc->sector_size, bv_in.bv_offset); in crypt_convert_block_aead()
1324 sg_set_buf(&dmreq->sg_in[3], tag, cc->integrity_tag_size); in crypt_convert_block_aead()
1328 sg_set_buf(&dmreq->sg_out[1], org_iv, cc->iv_size); in crypt_convert_block_aead()
1329 sg_set_page(&dmreq->sg_out[2], bv_out.bv_page, cc->sector_size, bv_out.bv_offset); in crypt_convert_block_aead()
1330 sg_set_buf(&dmreq->sg_out[3], tag, cc->integrity_tag_size); in crypt_convert_block_aead()
1332 if (cc->iv_gen_ops) { in crypt_convert_block_aead()
1334 if (cc->integrity_iv_size && bio_data_dir(ctx->bio_in) != WRITE) { in crypt_convert_block_aead()
1335 memcpy(org_iv, tag_iv, cc->iv_size); in crypt_convert_block_aead()
1337 r = cc->iv_gen_ops->generator(cc, org_iv, dmreq); in crypt_convert_block_aead()
1341 if (cc->integrity_iv_size) in crypt_convert_block_aead()
1342 memcpy(tag_iv, org_iv, cc->iv_size); in crypt_convert_block_aead()
1345 memcpy(iv, org_iv, cc->iv_size); in crypt_convert_block_aead()
1348 aead_request_set_ad(req, sizeof(uint64_t) + cc->iv_size); in crypt_convert_block_aead()
1351 cc->sector_size, iv); in crypt_convert_block_aead()
1353 if (cc->integrity_tag_size + cc->integrity_iv_size != cc->on_disk_tag_size) in crypt_convert_block_aead()
1354 memset(tag + cc->integrity_tag_size + cc->integrity_iv_size, 0, in crypt_convert_block_aead()
1355 cc->on_disk_tag_size - (cc->integrity_tag_size + cc->integrity_iv_size)); in crypt_convert_block_aead()
1358 cc->sector_size + cc->integrity_tag_size, iv); in crypt_convert_block_aead()
1368 if (!r && cc->iv_gen_ops && cc->iv_gen_ops->post) in crypt_convert_block_aead()
1369 r = cc->iv_gen_ops->post(cc, org_iv, dmreq); in crypt_convert_block_aead()
1371 bio_advance_iter(ctx->bio_in, &ctx->iter_in, cc->sector_size); in crypt_convert_block_aead()
1372 bio_advance_iter(ctx->bio_out, &ctx->iter_out, cc->sector_size); in crypt_convert_block_aead()
1377 static int crypt_convert_block_skcipher(struct crypt_config *cc, in crypt_convert_block_skcipher() argument
1391 if (unlikely(bv_in.bv_len & (cc->sector_size - 1))) in crypt_convert_block_skcipher()
1394 dmreq = dmreq_of_req(cc, req); in crypt_convert_block_skcipher()
1396 if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags)) in crypt_convert_block_skcipher()
1397 dmreq->iv_sector >>= cc->sector_shift; in crypt_convert_block_skcipher()
1400 *org_tag_of_dmreq(cc, dmreq) = tag_offset; in crypt_convert_block_skcipher()
1402 iv = iv_of_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1403 org_iv = org_iv_of_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1404 tag_iv = iv_tag_from_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1406 sector = org_sector_of_dmreq(cc, dmreq); in crypt_convert_block_skcipher()
1407 *sector = cpu_to_le64(ctx->cc_sector - cc->iv_offset); in crypt_convert_block_skcipher()
1414 sg_set_page(sg_in, bv_in.bv_page, cc->sector_size, bv_in.bv_offset); in crypt_convert_block_skcipher()
1417 sg_set_page(sg_out, bv_out.bv_page, cc->sector_size, bv_out.bv_offset); in crypt_convert_block_skcipher()
1419 if (cc->iv_gen_ops) { in crypt_convert_block_skcipher()
1421 if (cc->integrity_iv_size && bio_data_dir(ctx->bio_in) != WRITE) { in crypt_convert_block_skcipher()
1422 memcpy(org_iv, tag_iv, cc->integrity_iv_size); in crypt_convert_block_skcipher()
1424 r = cc->iv_gen_ops->generator(cc, org_iv, dmreq); in crypt_convert_block_skcipher()
1428 if (test_bit(CRYPT_ENCRYPT_PREPROCESS, &cc->cipher_flags)) in crypt_convert_block_skcipher()
1431 if (cc->integrity_iv_size) in crypt_convert_block_skcipher()
1432 memcpy(tag_iv, org_iv, cc->integrity_iv_size); in crypt_convert_block_skcipher()
1435 memcpy(iv, org_iv, cc->iv_size); in crypt_convert_block_skcipher()
1438 skcipher_request_set_crypt(req, sg_in, sg_out, cc->sector_size, iv); in crypt_convert_block_skcipher()
1445 if (!r && cc->iv_gen_ops && cc->iv_gen_ops->post) in crypt_convert_block_skcipher()
1446 r = cc->iv_gen_ops->post(cc, org_iv, dmreq); in crypt_convert_block_skcipher()
1448 bio_advance_iter(ctx->bio_in, &ctx->iter_in, cc->sector_size); in crypt_convert_block_skcipher()
1449 bio_advance_iter(ctx->bio_out, &ctx->iter_out, cc->sector_size); in crypt_convert_block_skcipher()
1457 static void crypt_alloc_req_skcipher(struct crypt_config *cc, in crypt_alloc_req_skcipher() argument
1460 unsigned key_index = ctx->cc_sector & (cc->tfms_count - 1); in crypt_alloc_req_skcipher()
1463 ctx->r.req = mempool_alloc(&cc->req_pool, GFP_NOIO); in crypt_alloc_req_skcipher()
1465 skcipher_request_set_tfm(ctx->r.req, cc->cipher_tfm.tfms[key_index]); in crypt_alloc_req_skcipher()
1473 kcryptd_async_done, dmreq_of_req(cc, ctx->r.req)); in crypt_alloc_req_skcipher()
1476 static void crypt_alloc_req_aead(struct crypt_config *cc, in crypt_alloc_req_aead() argument
1480 ctx->r.req_aead = mempool_alloc(&cc->req_pool, GFP_NOIO); in crypt_alloc_req_aead()
1482 aead_request_set_tfm(ctx->r.req_aead, cc->cipher_tfm.tfms_aead[0]); in crypt_alloc_req_aead()
1490 kcryptd_async_done, dmreq_of_req(cc, ctx->r.req_aead)); in crypt_alloc_req_aead()
1493 static void crypt_alloc_req(struct crypt_config *cc, in crypt_alloc_req() argument
1496 if (crypt_integrity_aead(cc)) in crypt_alloc_req()
1497 crypt_alloc_req_aead(cc, ctx); in crypt_alloc_req()
1499 crypt_alloc_req_skcipher(cc, ctx); in crypt_alloc_req()
1502 static void crypt_free_req_skcipher(struct crypt_config *cc, in crypt_free_req_skcipher() argument
1505 struct dm_crypt_io *io = dm_per_bio_data(base_bio, cc->per_bio_data_size); in crypt_free_req_skcipher()
1508 mempool_free(req, &cc->req_pool); in crypt_free_req_skcipher()
1511 static void crypt_free_req_aead(struct crypt_config *cc, in crypt_free_req_aead() argument
1514 struct dm_crypt_io *io = dm_per_bio_data(base_bio, cc->per_bio_data_size); in crypt_free_req_aead()
1517 mempool_free(req, &cc->req_pool); in crypt_free_req_aead()
1520 static void crypt_free_req(struct crypt_config *cc, void *req, struct bio *base_bio) in crypt_free_req() argument
1522 if (crypt_integrity_aead(cc)) in crypt_free_req()
1523 crypt_free_req_aead(cc, req, base_bio); in crypt_free_req()
1525 crypt_free_req_skcipher(cc, req, base_bio); in crypt_free_req()
1531 static blk_status_t crypt_convert(struct crypt_config *cc, in crypt_convert() argument
1535 unsigned int sector_step = cc->sector_size >> SECTOR_SHIFT; in crypt_convert()
1542 crypt_alloc_req(cc, ctx); in crypt_convert()
1545 if (crypt_integrity_aead(cc)) in crypt_convert()
1546 r = crypt_convert_block_aead(cc, ctx, ctx->r.req_aead, tag_offset); in crypt_convert()
1548 r = crypt_convert_block_skcipher(cc, ctx, ctx->r.req, tag_offset); in crypt_convert()
1596 static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone);
1617 struct crypt_config *cc = io->cc; in crypt_alloc_buffer() local
1626 mutex_lock(&cc->bio_alloc_lock); in crypt_alloc_buffer()
1628 clone = bio_alloc_bioset(GFP_NOIO, nr_iovecs, &cc->bs); in crypt_alloc_buffer()
1637 page = mempool_alloc(&cc->page_pool, gfp_mask); in crypt_alloc_buffer()
1639 crypt_free_buffer_pages(cc, clone); in crypt_alloc_buffer()
1654 crypt_free_buffer_pages(cc, clone); in crypt_alloc_buffer()
1660 mutex_unlock(&cc->bio_alloc_lock); in crypt_alloc_buffer()
1665 static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone) in crypt_free_buffer_pages() argument
1672 mempool_free(bv->bv_page, &cc->page_pool); in crypt_free_buffer_pages()
1676 static void crypt_io_init(struct dm_crypt_io *io, struct crypt_config *cc, in crypt_io_init() argument
1679 io->cc = cc; in crypt_io_init()
1700 struct crypt_config *cc = io->cc; in crypt_dec_pending() local
1708 crypt_free_req(cc, io->ctx.r.req, base_bio); in crypt_dec_pending()
1711 mempool_free(io->integrity_metadata, &io->cc->tag_pool); in crypt_dec_pending()
1739 struct crypt_config *cc = io->cc; in crypt_endio() local
1747 crypt_free_buffer_pages(cc, clone); in crypt_endio()
1765 struct crypt_config *cc = io->cc; in clone_init() local
1769 bio_set_dev(clone, cc->dev->bdev); in clone_init()
1775 struct crypt_config *cc = io->cc; in kcryptd_io_read() local
1784 clone = bio_clone_fast(io->base_bio, gfp, &cc->bs); in kcryptd_io_read()
1791 clone->bi_iter.bi_sector = cc->start + io->sector; in kcryptd_io_read()
1815 struct crypt_config *cc = io->cc; in kcryptd_queue_read() local
1818 queue_work(cc->io_queue, &io->work); in kcryptd_queue_read()
1832 struct crypt_config *cc = data; in dmcrypt_write() local
1839 spin_lock_irq(&cc->write_thread_lock); in dmcrypt_write()
1842 if (!RB_EMPTY_ROOT(&cc->write_tree)) in dmcrypt_write()
1847 spin_unlock_irq(&cc->write_thread_lock); in dmcrypt_write()
1857 spin_lock_irq(&cc->write_thread_lock); in dmcrypt_write()
1861 write_tree = cc->write_tree; in dmcrypt_write()
1862 cc->write_tree = RB_ROOT; in dmcrypt_write()
1863 spin_unlock_irq(&cc->write_thread_lock); in dmcrypt_write()
1885 struct crypt_config *cc = io->cc; in kcryptd_crypt_write_io_submit() local
1891 crypt_free_buffer_pages(cc, clone); in kcryptd_crypt_write_io_submit()
1900 clone->bi_iter.bi_sector = cc->start + io->sector; in kcryptd_crypt_write_io_submit()
1902 if ((likely(!async) && test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags)) || in kcryptd_crypt_write_io_submit()
1903 test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags)) { in kcryptd_crypt_write_io_submit()
1908 spin_lock_irqsave(&cc->write_thread_lock, flags); in kcryptd_crypt_write_io_submit()
1909 if (RB_EMPTY_ROOT(&cc->write_tree)) in kcryptd_crypt_write_io_submit()
1910 wake_up_process(cc->write_thread); in kcryptd_crypt_write_io_submit()
1911 rbp = &cc->write_tree.rb_node; in kcryptd_crypt_write_io_submit()
1922 rb_insert_color(&io->rb_node, &cc->write_tree); in kcryptd_crypt_write_io_submit()
1923 spin_unlock_irqrestore(&cc->write_thread_lock, flags); in kcryptd_crypt_write_io_submit()
1926 static bool kcryptd_crypt_write_inline(struct crypt_config *cc, in kcryptd_crypt_write_inline() argument
1930 if (!test_bit(DM_CRYPT_WRITE_INLINE, &cc->flags)) in kcryptd_crypt_write_inline()
1950 struct crypt_config *cc = io->cc; in kcryptd_crypt_write_convert() local
1961 crypt_convert_init(cc, ctx, NULL, io->base_bio, sector); in kcryptd_crypt_write_convert()
1975 r = crypt_convert(cc, ctx, in kcryptd_crypt_write_convert()
1976 test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags)); in kcryptd_crypt_write_convert()
1980 if (!crypt_finished && kcryptd_crypt_write_inline(cc, ctx)) { in kcryptd_crypt_write_convert()
2003 struct crypt_config *cc = io->cc; in kcryptd_crypt_read_convert() local
2008 crypt_convert_init(cc, &io->ctx, io->base_bio, io->base_bio, in kcryptd_crypt_read_convert()
2011 r = crypt_convert(cc, &io->ctx, in kcryptd_crypt_read_convert()
2012 test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags)); in kcryptd_crypt_read_convert()
2028 struct crypt_config *cc = io->cc; in kcryptd_async_done() local
2040 if (!error && cc->iv_gen_ops && cc->iv_gen_ops->post) in kcryptd_async_done()
2041 error = cc->iv_gen_ops->post(cc, org_iv_of_dmreq(cc, dmreq), dmreq); in kcryptd_async_done()
2046 (unsigned long long)le64_to_cpu(*org_sector_of_dmreq(cc, dmreq))); in kcryptd_async_done()
2051 crypt_free_req(cc, req_of_dmreq(cc, dmreq), io->base_bio); in kcryptd_async_done()
2065 if (kcryptd_crypt_write_inline(cc, ctx)) { in kcryptd_async_done()
2090 struct crypt_config *cc = io->cc; in kcryptd_queue_crypt() local
2092 if ((bio_data_dir(io->base_bio) == READ && test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags)) || in kcryptd_queue_crypt()
2093 (bio_data_dir(io->base_bio) == WRITE && test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags))) { in kcryptd_queue_crypt()
2106 queue_work(cc->crypt_queue, &io->work); in kcryptd_queue_crypt()
2109 static void crypt_free_tfms_aead(struct crypt_config *cc) in crypt_free_tfms_aead() argument
2111 if (!cc->cipher_tfm.tfms_aead) in crypt_free_tfms_aead()
2114 if (cc->cipher_tfm.tfms_aead[0] && !IS_ERR(cc->cipher_tfm.tfms_aead[0])) { in crypt_free_tfms_aead()
2115 crypto_free_aead(cc->cipher_tfm.tfms_aead[0]); in crypt_free_tfms_aead()
2116 cc->cipher_tfm.tfms_aead[0] = NULL; in crypt_free_tfms_aead()
2119 kfree(cc->cipher_tfm.tfms_aead); in crypt_free_tfms_aead()
2120 cc->cipher_tfm.tfms_aead = NULL; in crypt_free_tfms_aead()
2123 static void crypt_free_tfms_skcipher(struct crypt_config *cc) in crypt_free_tfms_skcipher() argument
2127 if (!cc->cipher_tfm.tfms) in crypt_free_tfms_skcipher()
2130 for (i = 0; i < cc->tfms_count; i++) in crypt_free_tfms_skcipher()
2131 if (cc->cipher_tfm.tfms[i] && !IS_ERR(cc->cipher_tfm.tfms[i])) { in crypt_free_tfms_skcipher()
2132 crypto_free_skcipher(cc->cipher_tfm.tfms[i]); in crypt_free_tfms_skcipher()
2133 cc->cipher_tfm.tfms[i] = NULL; in crypt_free_tfms_skcipher()
2136 kfree(cc->cipher_tfm.tfms); in crypt_free_tfms_skcipher()
2137 cc->cipher_tfm.tfms = NULL; in crypt_free_tfms_skcipher()
2140 static void crypt_free_tfms(struct crypt_config *cc) in crypt_free_tfms() argument
2142 if (crypt_integrity_aead(cc)) in crypt_free_tfms()
2143 crypt_free_tfms_aead(cc); in crypt_free_tfms()
2145 crypt_free_tfms_skcipher(cc); in crypt_free_tfms()
2148 static int crypt_alloc_tfms_skcipher(struct crypt_config *cc, char *ciphermode) in crypt_alloc_tfms_skcipher() argument
2153 cc->cipher_tfm.tfms = kcalloc(cc->tfms_count, in crypt_alloc_tfms_skcipher()
2156 if (!cc->cipher_tfm.tfms) in crypt_alloc_tfms_skcipher()
2159 for (i = 0; i < cc->tfms_count; i++) { in crypt_alloc_tfms_skcipher()
2160 cc->cipher_tfm.tfms[i] = crypto_alloc_skcipher(ciphermode, 0, in crypt_alloc_tfms_skcipher()
2162 if (IS_ERR(cc->cipher_tfm.tfms[i])) { in crypt_alloc_tfms_skcipher()
2163 err = PTR_ERR(cc->cipher_tfm.tfms[i]); in crypt_alloc_tfms_skcipher()
2164 crypt_free_tfms(cc); in crypt_alloc_tfms_skcipher()
2175 crypto_skcipher_alg(any_tfm(cc))->base.cra_driver_name); in crypt_alloc_tfms_skcipher()
2179 static int crypt_alloc_tfms_aead(struct crypt_config *cc, char *ciphermode) in crypt_alloc_tfms_aead() argument
2183 cc->cipher_tfm.tfms = kmalloc(sizeof(struct crypto_aead *), GFP_KERNEL); in crypt_alloc_tfms_aead()
2184 if (!cc->cipher_tfm.tfms) in crypt_alloc_tfms_aead()
2187 cc->cipher_tfm.tfms_aead[0] = crypto_alloc_aead(ciphermode, 0, in crypt_alloc_tfms_aead()
2189 if (IS_ERR(cc->cipher_tfm.tfms_aead[0])) { in crypt_alloc_tfms_aead()
2190 err = PTR_ERR(cc->cipher_tfm.tfms_aead[0]); in crypt_alloc_tfms_aead()
2191 crypt_free_tfms(cc); in crypt_alloc_tfms_aead()
2196 crypto_aead_alg(any_tfm_aead(cc))->base.cra_driver_name); in crypt_alloc_tfms_aead()
2200 static int crypt_alloc_tfms(struct crypt_config *cc, char *ciphermode) in crypt_alloc_tfms() argument
2202 if (crypt_integrity_aead(cc)) in crypt_alloc_tfms()
2203 return crypt_alloc_tfms_aead(cc, ciphermode); in crypt_alloc_tfms()
2205 return crypt_alloc_tfms_skcipher(cc, ciphermode); in crypt_alloc_tfms()
2208 static unsigned crypt_subkey_size(struct crypt_config *cc) in crypt_subkey_size() argument
2210 return (cc->key_size - cc->key_extra_size) >> ilog2(cc->tfms_count); in crypt_subkey_size()
2213 static unsigned crypt_authenckey_size(struct crypt_config *cc) in crypt_authenckey_size() argument
2215 return crypt_subkey_size(cc) + RTA_SPACE(sizeof(struct crypto_authenc_key_param)); in crypt_authenckey_size()
2221 * This funcion converts cc->key to this special format.
2240 static int crypt_setkey(struct crypt_config *cc) in crypt_setkey() argument
2246 subkey_size = crypt_subkey_size(cc); in crypt_setkey()
2248 if (crypt_integrity_hmac(cc)) { in crypt_setkey()
2249 if (subkey_size < cc->key_mac_size) in crypt_setkey()
2252 crypt_copy_authenckey(cc->authenc_key, cc->key, in crypt_setkey()
2253 subkey_size - cc->key_mac_size, in crypt_setkey()
2254 cc->key_mac_size); in crypt_setkey()
2257 for (i = 0; i < cc->tfms_count; i++) { in crypt_setkey()
2258 if (crypt_integrity_hmac(cc)) in crypt_setkey()
2259 r = crypto_aead_setkey(cc->cipher_tfm.tfms_aead[i], in crypt_setkey()
2260 cc->authenc_key, crypt_authenckey_size(cc)); in crypt_setkey()
2261 else if (crypt_integrity_aead(cc)) in crypt_setkey()
2262 r = crypto_aead_setkey(cc->cipher_tfm.tfms_aead[i], in crypt_setkey()
2263 cc->key + (i * subkey_size), in crypt_setkey()
2266 r = crypto_skcipher_setkey(cc->cipher_tfm.tfms[i], in crypt_setkey()
2267 cc->key + (i * subkey_size), in crypt_setkey()
2273 if (crypt_integrity_hmac(cc)) in crypt_setkey()
2274 memzero_explicit(cc->authenc_key, crypt_authenckey_size(cc)); in crypt_setkey()
2289 static int set_key_user(struct crypt_config *cc, struct key *key) in set_key_user() argument
2297 if (cc->key_size != ukp->datalen) in set_key_user()
2300 memcpy(cc->key, ukp->data, cc->key_size); in set_key_user()
2306 static int set_key_encrypted(struct crypt_config *cc, struct key *key) in set_key_encrypted() argument
2314 if (cc->key_size != ekp->decrypted_datalen) in set_key_encrypted()
2317 memcpy(cc->key, ekp->decrypted_data, cc->key_size); in set_key_encrypted()
2323 static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string) in crypt_set_keyring_key() argument
2329 int (*set_key)(struct crypt_config *cc, struct key *key); in crypt_set_keyring_key()
2372 ret = set_key(cc, key); in crypt_set_keyring_key()
2384 clear_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_keyring_key()
2386 ret = crypt_setkey(cc); in crypt_set_keyring_key()
2389 set_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_keyring_key()
2390 kfree_sensitive(cc->key_string); in crypt_set_keyring_key()
2391 cc->key_string = new_key_string; in crypt_set_keyring_key()
2423 static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string) in crypt_set_keyring_key() argument
2435 static int crypt_set_key(struct crypt_config *cc, char *key) in crypt_set_key() argument
2441 if (!cc->key_size && strcmp(key, "-")) in crypt_set_key()
2446 r = crypt_set_keyring_key(cc, key + 1); in crypt_set_key()
2451 clear_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_key()
2454 kfree_sensitive(cc->key_string); in crypt_set_key()
2455 cc->key_string = NULL; in crypt_set_key()
2458 if (cc->key_size && hex2bin(cc->key, key, cc->key_size) < 0) in crypt_set_key()
2461 r = crypt_setkey(cc); in crypt_set_key()
2463 set_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_set_key()
2472 static int crypt_wipe_key(struct crypt_config *cc) in crypt_wipe_key() argument
2476 clear_bit(DM_CRYPT_KEY_VALID, &cc->flags); in crypt_wipe_key()
2477 get_random_bytes(&cc->key, cc->key_size); in crypt_wipe_key()
2480 if (cc->iv_gen_ops && cc->iv_gen_ops->wipe) { in crypt_wipe_key()
2481 r = cc->iv_gen_ops->wipe(cc); in crypt_wipe_key()
2486 kfree_sensitive(cc->key_string); in crypt_wipe_key()
2487 cc->key_string = NULL; in crypt_wipe_key()
2488 r = crypt_setkey(cc); in crypt_wipe_key()
2489 memset(&cc->key, 0, cc->key_size * sizeof(u8)); in crypt_wipe_key()
2509 struct crypt_config *cc = pool_data; in crypt_page_alloc() local
2512 if (unlikely(percpu_counter_compare(&cc->n_allocated_pages, dm_crypt_pages_per_client) >= 0) && in crypt_page_alloc()
2518 percpu_counter_add(&cc->n_allocated_pages, 1); in crypt_page_alloc()
2525 struct crypt_config *cc = pool_data; in crypt_page_free() local
2528 percpu_counter_sub(&cc->n_allocated_pages, 1); in crypt_page_free()
2533 struct crypt_config *cc = ti->private; in crypt_dtr() local
2537 if (!cc) in crypt_dtr()
2540 if (cc->write_thread) in crypt_dtr()
2541 kthread_stop(cc->write_thread); in crypt_dtr()
2543 if (cc->io_queue) in crypt_dtr()
2544 destroy_workqueue(cc->io_queue); in crypt_dtr()
2545 if (cc->crypt_queue) in crypt_dtr()
2546 destroy_workqueue(cc->crypt_queue); in crypt_dtr()
2548 crypt_free_tfms(cc); in crypt_dtr()
2550 bioset_exit(&cc->bs); in crypt_dtr()
2552 mempool_exit(&cc->page_pool); in crypt_dtr()
2553 mempool_exit(&cc->req_pool); in crypt_dtr()
2554 mempool_exit(&cc->tag_pool); in crypt_dtr()
2556 WARN_ON(percpu_counter_sum(&cc->n_allocated_pages) != 0); in crypt_dtr()
2557 percpu_counter_destroy(&cc->n_allocated_pages); in crypt_dtr()
2559 if (cc->iv_gen_ops && cc->iv_gen_ops->dtr) in crypt_dtr()
2560 cc->iv_gen_ops->dtr(cc); in crypt_dtr()
2562 if (cc->dev) in crypt_dtr()
2563 dm_put_device(ti, cc->dev); in crypt_dtr()
2565 kfree_sensitive(cc->cipher_string); in crypt_dtr()
2566 kfree_sensitive(cc->key_string); in crypt_dtr()
2567 kfree_sensitive(cc->cipher_auth); in crypt_dtr()
2568 kfree_sensitive(cc->authenc_key); in crypt_dtr()
2570 mutex_destroy(&cc->bio_alloc_lock); in crypt_dtr()
2573 kfree_sensitive(cc); in crypt_dtr()
2584 struct crypt_config *cc = ti->private; in crypt_ctr_ivmode() local
2586 if (crypt_integrity_aead(cc)) in crypt_ctr_ivmode()
2587 cc->iv_size = crypto_aead_ivsize(any_tfm_aead(cc)); in crypt_ctr_ivmode()
2589 cc->iv_size = crypto_skcipher_ivsize(any_tfm(cc)); in crypt_ctr_ivmode()
2591 if (cc->iv_size) in crypt_ctr_ivmode()
2593 cc->iv_size = max(cc->iv_size, in crypt_ctr_ivmode()
2602 cc->iv_gen_ops = NULL; in crypt_ctr_ivmode()
2604 cc->iv_gen_ops = &crypt_iv_plain_ops; in crypt_ctr_ivmode()
2606 cc->iv_gen_ops = &crypt_iv_plain64_ops; in crypt_ctr_ivmode()
2608 cc->iv_gen_ops = &crypt_iv_plain64be_ops; in crypt_ctr_ivmode()
2610 cc->iv_gen_ops = &crypt_iv_essiv_ops; in crypt_ctr_ivmode()
2612 cc->iv_gen_ops = &crypt_iv_benbi_ops; in crypt_ctr_ivmode()
2614 cc->iv_gen_ops = &crypt_iv_null_ops; in crypt_ctr_ivmode()
2616 cc->iv_gen_ops = &crypt_iv_eboiv_ops; in crypt_ctr_ivmode()
2618 cc->iv_gen_ops = &crypt_iv_elephant_ops; in crypt_ctr_ivmode()
2619 cc->key_parts = 2; in crypt_ctr_ivmode()
2620 cc->key_extra_size = cc->key_size / 2; in crypt_ctr_ivmode()
2621 if (cc->key_extra_size > ELEPHANT_MAX_KEY_SIZE) in crypt_ctr_ivmode()
2623 set_bit(CRYPT_ENCRYPT_PREPROCESS, &cc->cipher_flags); in crypt_ctr_ivmode()
2625 cc->iv_gen_ops = &crypt_iv_lmk_ops; in crypt_ctr_ivmode()
2632 if (cc->key_size % cc->key_parts) { in crypt_ctr_ivmode()
2633 cc->key_parts++; in crypt_ctr_ivmode()
2634 cc->key_extra_size = cc->key_size / cc->key_parts; in crypt_ctr_ivmode()
2637 cc->iv_gen_ops = &crypt_iv_tcw_ops; in crypt_ctr_ivmode()
2638 cc->key_parts += 2; /* IV + whitening */ in crypt_ctr_ivmode()
2639 cc->key_extra_size = cc->iv_size + TCW_WHITENING_SIZE; in crypt_ctr_ivmode()
2641 cc->iv_gen_ops = &crypt_iv_random_ops; in crypt_ctr_ivmode()
2643 cc->integrity_iv_size = cc->iv_size; in crypt_ctr_ivmode()
2657 static int crypt_ctr_auth_cipher(struct crypt_config *cc, char *cipher_api) in crypt_ctr_auth_cipher() argument
2681 cc->key_mac_size = crypto_ahash_digestsize(mac); in crypt_ctr_auth_cipher()
2684 cc->authenc_key = kmalloc(crypt_authenckey_size(cc), GFP_KERNEL); in crypt_ctr_auth_cipher()
2685 if (!cc->authenc_key) in crypt_ctr_auth_cipher()
2694 struct crypt_config *cc = ti->private; in crypt_ctr_cipher_new() local
2698 cc->tfms_count = 1; in crypt_ctr_cipher_new()
2722 if (crypt_integrity_aead(cc)) { in crypt_ctr_cipher_new()
2723 ret = crypt_ctr_auth_cipher(cc, cipher_api); in crypt_ctr_cipher_new()
2731 cc->tfms_count = 64; in crypt_ctr_cipher_new()
2747 cc->key_parts = cc->tfms_count; in crypt_ctr_cipher_new()
2750 ret = crypt_alloc_tfms(cc, cipher_api); in crypt_ctr_cipher_new()
2756 if (crypt_integrity_aead(cc)) in crypt_ctr_cipher_new()
2757 cc->iv_size = crypto_aead_ivsize(any_tfm_aead(cc)); in crypt_ctr_cipher_new()
2759 cc->iv_size = crypto_skcipher_ivsize(any_tfm(cc)); in crypt_ctr_cipher_new()
2767 struct crypt_config *cc = ti->private; in crypt_ctr_cipher_old() local
2773 if (strchr(cipher_in, '(') || crypt_integrity_aead(cc)) { in crypt_ctr_cipher_old()
2787 cc->tfms_count = 1; in crypt_ctr_cipher_old()
2788 else if (sscanf(keycount, "%u%c", &cc->tfms_count, &dummy) != 1 || in crypt_ctr_cipher_old()
2789 !is_power_of_2(cc->tfms_count)) { in crypt_ctr_cipher_old()
2793 cc->key_parts = cc->tfms_count; in crypt_ctr_cipher_old()
2835 ret = crypt_alloc_tfms(cc, cipher_api); in crypt_ctr_cipher_old()
2851 struct crypt_config *cc = ti->private; in crypt_ctr_cipher() local
2855 cc->cipher_string = kstrdup(cipher_in, GFP_KERNEL); in crypt_ctr_cipher()
2856 if (!cc->cipher_string) { in crypt_ctr_cipher()
2874 ret = crypt_set_key(cc, key); in crypt_ctr_cipher()
2881 if (cc->iv_gen_ops && cc->iv_gen_ops->ctr) { in crypt_ctr_cipher()
2882 ret = cc->iv_gen_ops->ctr(cc, ti, ivopts); in crypt_ctr_cipher()
2890 if (cc->iv_gen_ops && cc->iv_gen_ops->init) { in crypt_ctr_cipher()
2891 ret = cc->iv_gen_ops->init(cc); in crypt_ctr_cipher()
2899 if (cc->key_string) in crypt_ctr_cipher()
2900 memset(cc->key, 0, cc->key_size * sizeof(u8)); in crypt_ctr_cipher()
2907 struct crypt_config *cc = ti->private; in crypt_ctr_optional() local
2936 set_bit(DM_CRYPT_SAME_CPU, &cc->flags); in crypt_ctr_optional()
2939 set_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags); in crypt_ctr_optional()
2941 set_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags); in crypt_ctr_optional()
2943 set_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags); in crypt_ctr_optional()
2949 cc->on_disk_tag_size = val; in crypt_ctr_optional()
2952 set_bit(CRYPT_MODE_INTEGRITY_AEAD, &cc->cipher_flags); in crypt_ctr_optional()
2958 cc->cipher_auth = kstrdup(sval, GFP_KERNEL); in crypt_ctr_optional()
2959 if (!cc->cipher_auth) in crypt_ctr_optional()
2961 } else if (sscanf(opt_string, "sector_size:%hu%c", &cc->sector_size, &dummy) == 1) { in crypt_ctr_optional()
2962 if (cc->sector_size < (1 << SECTOR_SHIFT) || in crypt_ctr_optional()
2963 cc->sector_size > 4096 || in crypt_ctr_optional()
2964 (cc->sector_size & (cc->sector_size - 1))) { in crypt_ctr_optional()
2968 if (ti->len & ((cc->sector_size >> SECTOR_SHIFT) - 1)) { in crypt_ctr_optional()
2972 cc->sector_shift = __ffs(cc->sector_size) - SECTOR_SHIFT; in crypt_ctr_optional()
2974 set_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags); in crypt_ctr_optional()
2989 struct crypt_config *cc = ti->private; in crypt_report_zones() local
2990 sector_t sector = cc->start + dm_target_offset(ti, args->next_sector); in crypt_report_zones()
2992 args->start = cc->start; in crypt_report_zones()
2993 return blkdev_report_zones(cc->dev->bdev, sector, nr_zones, in crypt_report_zones()
3005 struct crypt_config *cc; in crypt_ctr() local
3025 cc = kzalloc(struct_size(cc, key, key_size), GFP_KERNEL); in crypt_ctr()
3026 if (!cc) { in crypt_ctr()
3030 cc->key_size = key_size; in crypt_ctr()
3031 cc->sector_size = (1 << SECTOR_SHIFT); in crypt_ctr()
3032 cc->sector_shift = 0; in crypt_ctr()
3034 ti->private = cc; in crypt_ctr()
3041 ret = percpu_counter_init(&cc->n_allocated_pages, 0, GFP_KERNEL); in crypt_ctr()
3056 if (crypt_integrity_aead(cc)) { in crypt_ctr()
3057 cc->dmreq_start = sizeof(struct aead_request); in crypt_ctr()
3058 cc->dmreq_start += crypto_aead_reqsize(any_tfm_aead(cc)); in crypt_ctr()
3059 align_mask = crypto_aead_alignmask(any_tfm_aead(cc)); in crypt_ctr()
3061 cc->dmreq_start = sizeof(struct skcipher_request); in crypt_ctr()
3062 cc->dmreq_start += crypto_skcipher_reqsize(any_tfm(cc)); in crypt_ctr()
3063 align_mask = crypto_skcipher_alignmask(any_tfm(cc)); in crypt_ctr()
3065 cc->dmreq_start = ALIGN(cc->dmreq_start, __alignof__(struct dm_crypt_request)); in crypt_ctr()
3069 iv_size_padding = -(cc->dmreq_start + sizeof(struct dm_crypt_request)) in crypt_ctr()
3082 iv_size_padding + cc->iv_size + in crypt_ctr()
3083 cc->iv_size + in crypt_ctr()
3087 ret = mempool_init_kmalloc_pool(&cc->req_pool, MIN_IOS, cc->dmreq_start + additional_req_size); in crypt_ctr()
3093 cc->per_bio_data_size = ti->per_io_data_size = in crypt_ctr()
3094 ALIGN(sizeof(struct dm_crypt_io) + cc->dmreq_start + additional_req_size, in crypt_ctr()
3097 ret = mempool_init(&cc->page_pool, BIO_MAX_PAGES, crypt_page_alloc, crypt_page_free, cc); in crypt_ctr()
3103 ret = bioset_init(&cc->bs, MIN_IOS, 0, BIOSET_NEED_BVECS); in crypt_ctr()
3109 mutex_init(&cc->bio_alloc_lock); in crypt_ctr()
3113 (tmpll & ((cc->sector_size >> SECTOR_SHIFT) - 1))) { in crypt_ctr()
3117 cc->iv_offset = tmpll; in crypt_ctr()
3119 ret = dm_get_device(ti, argv[3], dm_table_get_mode(ti->table), &cc->dev); in crypt_ctr()
3130 cc->start = tmpll; in crypt_ctr()
3137 if (bdev_is_zoned(cc->dev->bdev)) { in crypt_ctr()
3138 set_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags); in crypt_ctr()
3139 set_bit(DM_CRYPT_WRITE_INLINE, &cc->flags); in crypt_ctr()
3142 if (crypt_integrity_aead(cc) || cc->integrity_iv_size) { in crypt_ctr()
3143 ret = crypt_integrity_ctr(cc, ti); in crypt_ctr()
3147 cc->tag_pool_max_sectors = POOL_ENTRY_SIZE / cc->on_disk_tag_size; in crypt_ctr()
3148 if (!cc->tag_pool_max_sectors) in crypt_ctr()
3149 cc->tag_pool_max_sectors = 1; in crypt_ctr()
3151 ret = mempool_init_kmalloc_pool(&cc->tag_pool, MIN_IOS, in crypt_ctr()
3152 cc->tag_pool_max_sectors * cc->on_disk_tag_size); in crypt_ctr()
3158 cc->tag_pool_max_sectors <<= cc->sector_shift; in crypt_ctr()
3162 cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname); in crypt_ctr()
3163 if (!cc->io_queue) { in crypt_ctr()
3168 if (test_bit(DM_CRYPT_SAME_CPU, &cc->flags)) in crypt_ctr()
3169 cc->crypt_queue = alloc_workqueue("kcryptd/%s", WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM, in crypt_ctr()
3172 cc->crypt_queue = alloc_workqueue("kcryptd/%s", in crypt_ctr()
3175 if (!cc->crypt_queue) { in crypt_ctr()
3180 spin_lock_init(&cc->write_thread_lock); in crypt_ctr()
3181 cc->write_tree = RB_ROOT; in crypt_ctr()
3183 cc->write_thread = kthread_create(dmcrypt_write, cc, "dmcrypt_write/%s", devname); in crypt_ctr()
3184 if (IS_ERR(cc->write_thread)) { in crypt_ctr()
3185 ret = PTR_ERR(cc->write_thread); in crypt_ctr()
3186 cc->write_thread = NULL; in crypt_ctr()
3190 wake_up_process(cc->write_thread); in crypt_ctr()
3204 struct crypt_config *cc = ti->private; in crypt_map() local
3213 bio_set_dev(bio, cc->dev->bdev); in crypt_map()
3215 bio->bi_iter.bi_sector = cc->start + in crypt_map()
3224 (bio_data_dir(bio) == WRITE || cc->on_disk_tag_size)) in crypt_map()
3231 if (unlikely((bio->bi_iter.bi_sector & ((cc->sector_size >> SECTOR_SHIFT) - 1)) != 0)) in crypt_map()
3234 if (unlikely(bio->bi_iter.bi_size & (cc->sector_size - 1))) in crypt_map()
3237 io = dm_per_bio_data(bio, cc->per_bio_data_size); in crypt_map()
3238 crypt_io_init(io, cc, bio, dm_target_offset(ti, bio->bi_iter.bi_sector)); in crypt_map()
3240 if (cc->on_disk_tag_size) { in crypt_map()
3241 unsigned tag_len = cc->on_disk_tag_size * (bio_sectors(bio) >> cc->sector_shift); in crypt_map()
3246 if (bio_sectors(bio) > cc->tag_pool_max_sectors) in crypt_map()
3247 dm_accept_partial_bio(bio, cc->tag_pool_max_sectors); in crypt_map()
3248 io->integrity_metadata = mempool_alloc(&cc->tag_pool, GFP_NOIO); in crypt_map()
3253 if (crypt_integrity_aead(cc)) in crypt_map()
3270 struct crypt_config *cc = ti->private; in crypt_status() local
3280 DMEMIT("%s ", cc->cipher_string); in crypt_status()
3282 if (cc->key_size > 0) { in crypt_status()
3283 if (cc->key_string) in crypt_status()
3284 DMEMIT(":%u:%s", cc->key_size, cc->key_string); in crypt_status()
3286 for (i = 0; i < cc->key_size; i++) in crypt_status()
3287 DMEMIT("%02x", cc->key[i]); in crypt_status()
3291 DMEMIT(" %llu %s %llu", (unsigned long long)cc->iv_offset, in crypt_status()
3292 cc->dev->name, (unsigned long long)cc->start); in crypt_status()
3295 num_feature_args += test_bit(DM_CRYPT_SAME_CPU, &cc->flags); in crypt_status()
3296 num_feature_args += test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags); in crypt_status()
3297 num_feature_args += test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags); in crypt_status()
3298 num_feature_args += test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags); in crypt_status()
3299 num_feature_args += cc->sector_size != (1 << SECTOR_SHIFT); in crypt_status()
3300 num_feature_args += test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags); in crypt_status()
3301 if (cc->on_disk_tag_size) in crypt_status()
3307 if (test_bit(DM_CRYPT_SAME_CPU, &cc->flags)) in crypt_status()
3309 if (test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags)) in crypt_status()
3311 if (test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags)) in crypt_status()
3313 if (test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags)) in crypt_status()
3315 if (cc->on_disk_tag_size) in crypt_status()
3316 DMEMIT(" integrity:%u:%s", cc->on_disk_tag_size, cc->cipher_auth); in crypt_status()
3317 if (cc->sector_size != (1 << SECTOR_SHIFT)) in crypt_status()
3318 DMEMIT(" sector_size:%d", cc->sector_size); in crypt_status()
3319 if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags)) in crypt_status()
3329 struct crypt_config *cc = ti->private; in crypt_postsuspend() local
3331 set_bit(DM_CRYPT_SUSPENDED, &cc->flags); in crypt_postsuspend()
3336 struct crypt_config *cc = ti->private; in crypt_preresume() local
3338 if (!test_bit(DM_CRYPT_KEY_VALID, &cc->flags)) { in crypt_preresume()
3348 struct crypt_config *cc = ti->private; in crypt_resume() local
3350 clear_bit(DM_CRYPT_SUSPENDED, &cc->flags); in crypt_resume()
3360 struct crypt_config *cc = ti->private; in crypt_message() local
3367 if (!test_bit(DM_CRYPT_SUSPENDED, &cc->flags)) { in crypt_message()
3374 if (key_size < 0 || cc->key_size != key_size) { in crypt_message()
3379 ret = crypt_set_key(cc, argv[2]); in crypt_message()
3382 if (cc->iv_gen_ops && cc->iv_gen_ops->init) in crypt_message()
3383 ret = cc->iv_gen_ops->init(cc); in crypt_message()
3385 if (cc->key_string) in crypt_message()
3386 memset(cc->key, 0, cc->key_size * sizeof(u8)); in crypt_message()
3390 return crypt_wipe_key(cc); in crypt_message()
3401 struct crypt_config *cc = ti->private; in crypt_iterate_devices() local
3403 return fn(ti, cc->dev, cc->start, ti->len, data); in crypt_iterate_devices()
3408 struct crypt_config *cc = ti->private; in crypt_io_hints() local
3419 max_t(unsigned, limits->logical_block_size, cc->sector_size); in crypt_io_hints()
3421 max_t(unsigned, limits->physical_block_size, cc->sector_size); in crypt_io_hints()
3422 limits->io_min = max_t(unsigned, limits->io_min, cc->sector_size); in crypt_io_hints()