crypto/bcm/cipher.c

37 #include "cipher.h"
71 MODULE_PARM_DESC(cipher_pri, "Priority for cipher algos");
154 	if ((ctx->cipher.mode == CIPHER_MODE_XTS) &&
219 	if ((ctx->cipher.mode == CIPHER_MODE_XTS) &&
282  * handle_skcipher_req() - Submit as much of a block cipher request as fits in
324 	cipher_parms.alg = ctx->cipher.alg;
325 	cipher_parms.mode = ctx->cipher.mode;
350 	if ((ctx->cipher.mode == CIPHER_MODE_CBC) &&
366 		if ((ctx->cipher.mode == CIPHER_MODE_CBC) &&
375 		} else if (ctx->cipher.mode == CIPHER_MODE_CTR) {
383 			 * any other cipher alg.
435 	if ((ctx->cipher.mode == CIPHER_MODE_XTS) &&
449 	if ((ctx->cipher.mode == CIPHER_MODE_XTS) &&
466  * handle_skcipher_resp() - Process a block cipher SPU response. Updates the
485 	if ((ctx->cipher.mode == CIPHER_MODE_XTS) &&
501 		   &iproc_priv.cipher_cnt[ctx->cipher.alg][ctx->cipher.mode]);
833 	data_pad_len = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode, chunksize);
1058 		data_padlen = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode,
1062 		data_padlen = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode,
1064 		assoc_buf_len = spu->spu_assoc_resp_len(ctx->cipher.mode,
1069 	if (ctx->cipher.mode == CIPHER_MODE_CCM)
1300 	cipher_parms.alg = ctx->cipher.alg;
1301 	cipher_parms.mode = ctx->cipher.mode;
1353 	if (spu->spu_assoc_resp_len(ctx->cipher.mode,
1359 	aead_parms.iv_len = spu->spu_aead_ivlen(ctx->cipher.mode,
1366 	aead_parms.aad_pad_len = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode,
1370 	aead_parms.data_pad_len = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode,
1373 	if (ctx->cipher.mode == CIPHER_MODE_CCM) {
1379 					 ctx->cipher.mode,
1388 				spu->spu_gcm_ccm_pad_len(ctx->cipher.mode,
1405 					ctx->cipher.mode,
1410 					ctx->cipher.mode,
1416 	if (spu_req_incl_icv(ctx->cipher.mode, rctx->is_encrypt)) {
1482 	if (((ctx->cipher.mode == CIPHER_MODE_GCM) ||
1483 	     (ctx->cipher.mode == CIPHER_MODE_CCM)) && !rctx->is_encrypt) {
1569 	if (ctx->cipher.alg == CIPHER_ALG_AES) {
1570 		if (ctx->cipher.mode == CIPHER_MODE_CCM)
1572 		else if (ctx->cipher.mode == CIPHER_MODE_GCM)
1740 	if (ctx->cipher.mode == CIPHER_MODE_CBC ||
1741 	    ctx->cipher.mode == CIPHER_MODE_CTR ||
1742 	    ctx->cipher.mode == CIPHER_MODE_OFB ||
1743 	    ctx->cipher.mode == CIPHER_MODE_XTS ||
1744 	    ctx->cipher.mode == CIPHER_MODE_GCM ||
1745 	    ctx->cipher.mode == CIPHER_MODE_CCM) {
1763 static int des_setkey(struct crypto_skcipher *cipher, const u8 *key,
1766 	struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher);
1769 	err = verify_skcipher_des_key(cipher, key);
1777 static int threedes_setkey(struct crypto_skcipher *cipher, const u8 *key,
1780 	struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher);
1783 	err = verify_skcipher_des3_key(cipher, key);
1791 static int aes_setkey(struct crypto_skcipher *cipher, const u8 *key,
1794 	struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher);
1796 	if (ctx->cipher.mode == CIPHER_MODE_XTS)
1818 static int skcipher_setkey(struct crypto_skcipher *cipher, const u8 *key,
1822 	struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher);
1830 	switch (ctx->cipher.alg) {
1832 		err = des_setkey(cipher, key, keylen);
1835 		err = threedes_setkey(cipher, key, keylen);
1838 		err = aes_setkey(cipher, key, keylen);
1841 		pr_err("%s() Error: unknown cipher alg\n", __func__);
1851 	if ((ctx->cipher.alg == CIPHER_ALG_AES) &&
1852 	    (ctx->cipher.mode == CIPHER_MODE_XTS)) {
1865 	cipher_parms.iv_len = crypto_skcipher_ivsize(cipher);
1868 	cipher_parms.alg = ctx->cipher.alg;
1869 	cipher_parms.mode = ctx->cipher.mode;
2516 	if (((ctx->cipher.mode == CIPHER_MODE_GCM) ||
2517 	     (ctx->cipher.mode == CIPHER_MODE_CCM)) &&
2527 	if ((ctx->cipher.mode == CIPHER_MODE_CCM) &&
2540 	if ((ctx->cipher.mode == CIPHER_MODE_CCM) &&
2552 	if (ctx->cipher.mode == CIPHER_MODE_GCM &&
2553 	    ctx->cipher.alg == CIPHER_ALG_AES &&
2661 	if (ctx->cipher.mode == CIPHER_MODE_CBC ||
2662 	    ctx->cipher.mode == CIPHER_MODE_CTR ||
2663 	    ctx->cipher.mode == CIPHER_MODE_OFB ||
2664 	    ctx->cipher.mode == CIPHER_MODE_XTS ||
2665 	    ctx->cipher.mode == CIPHER_MODE_GCM) {
2669 	} else if (ctx->cipher.mode == CIPHER_MODE_CCM) {
2719 static int aead_authenc_setkey(struct crypto_aead *cipher,
2723 	struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher);
2724 	struct crypto_tfm *tfm = crypto_aead_tfm(cipher);
2728 	flow_log("%s() aead:%p key:%p keylen:%u\n", __func__, cipher, key,
2750 		if (verify_aead_des_key(cipher, keys.enckey, keys.enckeylen))
2756 		if (verify_aead_des3_key(cipher, keys.enckey, keys.enckeylen))
2777 		pr_err("%s() Error: Unknown cipher alg\n", __func__);
2814 static int aead_gcm_ccm_setkey(struct crypto_aead *cipher,
2818 	struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher);
2819 	struct crypto_tfm *tfm = crypto_aead_tfm(cipher);
2887  * @cipher: AEAD structure
2896 static int aead_gcm_esp_setkey(struct crypto_aead *cipher,
2899 	struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher);
2914 	return aead_gcm_ccm_setkey(cipher, key, keylen);
2919  * @cipher: AEAD structure
2928 static int rfc4543_gcm_esp_setkey(struct crypto_aead *cipher,
2931 	struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher);
2947 	return aead_gcm_ccm_setkey(cipher, key, keylen);
2952  * @cipher: AEAD structure
2961 static int aead_ccm_esp_setkey(struct crypto_aead *cipher,
2964 	struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher);
2978 	return aead_gcm_ccm_setkey(cipher, key, keylen);
2981 static int aead_setauthsize(struct crypto_aead *cipher, unsigned int authsize)
2983 	struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher);
4097 	ctx->cipher = cipher_alg->cipher_info;
4100 	ctx->max_payload = spu->spu_ctx_max_payload(ctx->cipher.alg,
4101 						    ctx->cipher.mode,
4178 	flow_log("%s() creating fallback cipher\n", __func__);
4677 			dev_dbg(dev, "  unregistered cipher %s\n",