obj-$(CONFIG_CRYPTO_POLY1305) += poly1305_generic.o
obj-$(CONFIG_CRYPTO_DEFLATE) += deflate.o
obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += michael_mic.o
-obj-$(CONFIG_CRYPTO_CRC32C) += crc32c_generic.o
-obj-$(CONFIG_CRYPTO_CRC32) += crc32_generic.o
-CFLAGS_crc32c_generic.o += -DARCH=$(ARCH)
-CFLAGS_crc32_generic.o += -DARCH=$(ARCH)
+obj-$(CONFIG_CRYPTO_CRC32C) += crc32c-cryptoapi.o
+crc32c-cryptoapi-y := crc32c.o
+CFLAGS_crc32c.o += -DARCH=$(ARCH)
+obj-$(CONFIG_CRYPTO_CRC32) += crc32-cryptoapi.o
+crc32-cryptoapi-y := crc32.o
+CFLAGS_crc32.o += -DARCH=$(ARCH)
obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.o authencesn.o
obj-$(CONFIG_CRYPTO_KRB5ENC) += krb5enc.o
obj-$(CONFIG_CRYPTO_LZO) += lzo.o lzo-rle.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2012 Xyratex Technology Limited
+ */
+
+/*
+ * This is crypto api shash wrappers to crc32_le.
+ */
+
+#include <linux/unaligned.h>
+#include <linux/crc32.h>
+#include <crypto/internal/hash.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+
+#define CHKSUM_BLOCK_SIZE 1
+#define CHKSUM_DIGEST_SIZE 4
+
+/** No default init with ~0 */
+static int crc32_cra_init(struct crypto_tfm *tfm)
+{
+ u32 *key = crypto_tfm_ctx(tfm);
+
+ *key = 0;
+
+ return 0;
+}
+
+/*
+ * Setting the seed allows arbitrary accumulators and flexible XOR policy
+ * If your algorithm starts with ~0, then XOR with ~0 before you set
+ * the seed.
+ */
+static int crc32_setkey(struct crypto_shash *hash, const u8 *key,
+ unsigned int keylen)
+{
+ u32 *mctx = crypto_shash_ctx(hash);
+
+ if (keylen != sizeof(u32))
+ return -EINVAL;
+ *mctx = get_unaligned_le32(key);
+ return 0;
+}
+
+static int crc32_init(struct shash_desc *desc)
+{
+ u32 *mctx = crypto_shash_ctx(desc->tfm);
+ u32 *crcp = shash_desc_ctx(desc);
+
+ *crcp = *mctx;
+
+ return 0;
+}
+
+static int crc32_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ u32 *crcp = shash_desc_ctx(desc);
+
+ *crcp = crc32_le_base(*crcp, data, len);
+ return 0;
+}
+
+static int crc32_update_arch(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ u32 *crcp = shash_desc_ctx(desc);
+
+ *crcp = crc32_le(*crcp, data, len);
+ return 0;
+}
+
+/* No final XOR 0xFFFFFFFF, like crc32_le */
+static int __crc32_finup(u32 *crcp, const u8 *data, unsigned int len,
+ u8 *out)
+{
+ put_unaligned_le32(crc32_le_base(*crcp, data, len), out);
+ return 0;
+}
+
+static int __crc32_finup_arch(u32 *crcp, const u8 *data, unsigned int len,
+ u8 *out)
+{
+ put_unaligned_le32(crc32_le(*crcp, data, len), out);
+ return 0;
+}
+
+static int crc32_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32_finup(shash_desc_ctx(desc), data, len, out);
+}
+
+static int crc32_finup_arch(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32_finup_arch(shash_desc_ctx(desc), data, len, out);
+}
+
+static int crc32_final(struct shash_desc *desc, u8 *out)
+{
+ u32 *crcp = shash_desc_ctx(desc);
+
+ put_unaligned_le32(*crcp, out);
+ return 0;
+}
+
+static int crc32_digest(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32_finup(crypto_shash_ctx(desc->tfm), data, len, out);
+}
+
+static int crc32_digest_arch(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32_finup_arch(crypto_shash_ctx(desc->tfm), data, len, out);
+}
+
+static struct shash_alg algs[] = {{
+ .setkey = crc32_setkey,
+ .init = crc32_init,
+ .update = crc32_update,
+ .final = crc32_final,
+ .finup = crc32_finup,
+ .digest = crc32_digest,
+ .descsize = sizeof(u32),
+ .digestsize = CHKSUM_DIGEST_SIZE,
+
+ .base.cra_name = "crc32",
+ .base.cra_driver_name = "crc32-generic",
+ .base.cra_priority = 100,
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(u32),
+ .base.cra_module = THIS_MODULE,
+ .base.cra_init = crc32_cra_init,
+}, {
+ .setkey = crc32_setkey,
+ .init = crc32_init,
+ .update = crc32_update_arch,
+ .final = crc32_final,
+ .finup = crc32_finup_arch,
+ .digest = crc32_digest_arch,
+ .descsize = sizeof(u32),
+ .digestsize = CHKSUM_DIGEST_SIZE,
+
+ .base.cra_name = "crc32",
+ .base.cra_driver_name = "crc32-" __stringify(ARCH),
+ .base.cra_priority = 150,
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(u32),
+ .base.cra_module = THIS_MODULE,
+ .base.cra_init = crc32_cra_init,
+}};
+
+static int num_algs;
+
+static int __init crc32_mod_init(void)
+{
+ /* register the arch flavor only if it differs from the generic one */
+ num_algs = 1 + ((crc32_optimizations() & CRC32_LE_OPTIMIZATION) != 0);
+
+ return crypto_register_shashes(algs, num_algs);
+}
+
+static void __exit crc32_mod_fini(void)
+{
+ crypto_unregister_shashes(algs, num_algs);
+}
+
+subsys_initcall(crc32_mod_init);
+module_exit(crc32_mod_fini);
+
+MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>");
+MODULE_DESCRIPTION("CRC32 calculations wrapper for lib/crc32");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("crc32");
+MODULE_ALIAS_CRYPTO("crc32-generic");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2012 Xyratex Technology Limited
- */
-
-/*
- * This is crypto api shash wrappers to crc32_le.
- */
-
-#include <linux/unaligned.h>
-#include <linux/crc32.h>
-#include <crypto/internal/hash.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#define CHKSUM_BLOCK_SIZE 1
-#define CHKSUM_DIGEST_SIZE 4
-
-/** No default init with ~0 */
-static int crc32_cra_init(struct crypto_tfm *tfm)
-{
- u32 *key = crypto_tfm_ctx(tfm);
-
- *key = 0;
-
- return 0;
-}
-
-/*
- * Setting the seed allows arbitrary accumulators and flexible XOR policy
- * If your algorithm starts with ~0, then XOR with ~0 before you set
- * the seed.
- */
-static int crc32_setkey(struct crypto_shash *hash, const u8 *key,
- unsigned int keylen)
-{
- u32 *mctx = crypto_shash_ctx(hash);
-
- if (keylen != sizeof(u32))
- return -EINVAL;
- *mctx = get_unaligned_le32(key);
- return 0;
-}
-
-static int crc32_init(struct shash_desc *desc)
-{
- u32 *mctx = crypto_shash_ctx(desc->tfm);
- u32 *crcp = shash_desc_ctx(desc);
-
- *crcp = *mctx;
-
- return 0;
-}
-
-static int crc32_update(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- u32 *crcp = shash_desc_ctx(desc);
-
- *crcp = crc32_le_base(*crcp, data, len);
- return 0;
-}
-
-static int crc32_update_arch(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- u32 *crcp = shash_desc_ctx(desc);
-
- *crcp = crc32_le(*crcp, data, len);
- return 0;
-}
-
-/* No final XOR 0xFFFFFFFF, like crc32_le */
-static int __crc32_finup(u32 *crcp, const u8 *data, unsigned int len,
- u8 *out)
-{
- put_unaligned_le32(crc32_le_base(*crcp, data, len), out);
- return 0;
-}
-
-static int __crc32_finup_arch(u32 *crcp, const u8 *data, unsigned int len,
- u8 *out)
-{
- put_unaligned_le32(crc32_le(*crcp, data, len), out);
- return 0;
-}
-
-static int crc32_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- return __crc32_finup(shash_desc_ctx(desc), data, len, out);
-}
-
-static int crc32_finup_arch(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- return __crc32_finup_arch(shash_desc_ctx(desc), data, len, out);
-}
-
-static int crc32_final(struct shash_desc *desc, u8 *out)
-{
- u32 *crcp = shash_desc_ctx(desc);
-
- put_unaligned_le32(*crcp, out);
- return 0;
-}
-
-static int crc32_digest(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- return __crc32_finup(crypto_shash_ctx(desc->tfm), data, len, out);
-}
-
-static int crc32_digest_arch(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- return __crc32_finup_arch(crypto_shash_ctx(desc->tfm), data, len, out);
-}
-
-static struct shash_alg algs[] = {{
- .setkey = crc32_setkey,
- .init = crc32_init,
- .update = crc32_update,
- .final = crc32_final,
- .finup = crc32_finup,
- .digest = crc32_digest,
- .descsize = sizeof(u32),
- .digestsize = CHKSUM_DIGEST_SIZE,
-
- .base.cra_name = "crc32",
- .base.cra_driver_name = "crc32-generic",
- .base.cra_priority = 100,
- .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
- .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(u32),
- .base.cra_module = THIS_MODULE,
- .base.cra_init = crc32_cra_init,
-}, {
- .setkey = crc32_setkey,
- .init = crc32_init,
- .update = crc32_update_arch,
- .final = crc32_final,
- .finup = crc32_finup_arch,
- .digest = crc32_digest_arch,
- .descsize = sizeof(u32),
- .digestsize = CHKSUM_DIGEST_SIZE,
-
- .base.cra_name = "crc32",
- .base.cra_driver_name = "crc32-" __stringify(ARCH),
- .base.cra_priority = 150,
- .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
- .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(u32),
- .base.cra_module = THIS_MODULE,
- .base.cra_init = crc32_cra_init,
-}};
-
-static int num_algs;
-
-static int __init crc32_mod_init(void)
-{
- /* register the arch flavor only if it differs from the generic one */
- num_algs = 1 + ((crc32_optimizations() & CRC32_LE_OPTIMIZATION) != 0);
-
- return crypto_register_shashes(algs, num_algs);
-}
-
-static void __exit crc32_mod_fini(void)
-{
- crypto_unregister_shashes(algs, num_algs);
-}
-
-subsys_initcall(crc32_mod_init);
-module_exit(crc32_mod_fini);
-
-MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>");
-MODULE_DESCRIPTION("CRC32 calculations wrapper for lib/crc32");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CRYPTO("crc32");
-MODULE_ALIAS_CRYPTO("crc32-generic");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Cryptographic API.
+ *
+ * CRC32C chksum
+ *
+ *@Article{castagnoli-crc,
+ * author = { Guy Castagnoli and Stefan Braeuer and Martin Herrman},
+ * title = {{Optimization of Cyclic Redundancy-Check Codes with 24
+ * and 32 Parity Bits}},
+ * journal = IEEE Transactions on Communication,
+ * year = {1993},
+ * volume = {41},
+ * number = {6},
+ * pages = {},
+ * month = {June},
+ *}
+ * Used by the iSCSI driver, possibly others, and derived from
+ * the iscsi-crc.c module of the linux-iscsi driver at
+ * http://linux-iscsi.sourceforge.net.
+ *
+ * Following the example of lib/crc32, this function is intended to be
+ * flexible and useful for all users. Modules that currently have their
+ * own crc32c, but hopefully may be able to use this one are:
+ * net/sctp (please add all your doco to here if you change to
+ * use this one!)
+ * <endoflist>
+ *
+ * Copyright (c) 2004 Cisco Systems, Inc.
+ * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#include <linux/unaligned.h>
+#include <crypto/internal/hash.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/crc32.h>
+
+#define CHKSUM_BLOCK_SIZE 1
+#define CHKSUM_DIGEST_SIZE 4
+
+struct chksum_ctx {
+ u32 key;
+};
+
+struct chksum_desc_ctx {
+ u32 crc;
+};
+
+/*
+ * Steps through buffer one byte at a time, calculates reflected
+ * crc using table.
+ */
+
+static int chksum_init(struct shash_desc *desc)
+{
+ struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm);
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ ctx->crc = mctx->key;
+
+ return 0;
+}
+
+/*
+ * Setting the seed allows arbitrary accumulators and flexible XOR policy
+ * If your algorithm starts with ~0, then XOR with ~0 before you set
+ * the seed.
+ */
+static int chksum_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct chksum_ctx *mctx = crypto_shash_ctx(tfm);
+
+ if (keylen != sizeof(mctx->key))
+ return -EINVAL;
+ mctx->key = get_unaligned_le32(key);
+ return 0;
+}
+
+static int chksum_update(struct shash_desc *desc, const u8 *data,
+ unsigned int length)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ ctx->crc = crc32c_base(ctx->crc, data, length);
+ return 0;
+}
+
+static int chksum_update_arch(struct shash_desc *desc, const u8 *data,
+ unsigned int length)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ ctx->crc = crc32c(ctx->crc, data, length);
+ return 0;
+}
+
+static int chksum_final(struct shash_desc *desc, u8 *out)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ put_unaligned_le32(~ctx->crc, out);
+ return 0;
+}
+
+static int __chksum_finup(u32 *crcp, const u8 *data, unsigned int len, u8 *out)
+{
+ put_unaligned_le32(~crc32c_base(*crcp, data, len), out);
+ return 0;
+}
+
+static int __chksum_finup_arch(u32 *crcp, const u8 *data, unsigned int len,
+ u8 *out)
+{
+ put_unaligned_le32(~crc32c(*crcp, data, len), out);
+ return 0;
+}
+
+static int chksum_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ return __chksum_finup(&ctx->crc, data, len, out);
+}
+
+static int chksum_finup_arch(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ return __chksum_finup_arch(&ctx->crc, data, len, out);
+}
+
+static int chksum_digest(struct shash_desc *desc, const u8 *data,
+ unsigned int length, u8 *out)
+{
+ struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm);
+
+ return __chksum_finup(&mctx->key, data, length, out);
+}
+
+static int chksum_digest_arch(struct shash_desc *desc, const u8 *data,
+ unsigned int length, u8 *out)
+{
+ struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm);
+
+ return __chksum_finup_arch(&mctx->key, data, length, out);
+}
+
+static int crc32c_cra_init(struct crypto_tfm *tfm)
+{
+ struct chksum_ctx *mctx = crypto_tfm_ctx(tfm);
+
+ mctx->key = ~0;
+ return 0;
+}
+
+static struct shash_alg algs[] = {{
+ .digestsize = CHKSUM_DIGEST_SIZE,
+ .setkey = chksum_setkey,
+ .init = chksum_init,
+ .update = chksum_update,
+ .final = chksum_final,
+ .finup = chksum_finup,
+ .digest = chksum_digest,
+ .descsize = sizeof(struct chksum_desc_ctx),
+
+ .base.cra_name = "crc32c",
+ .base.cra_driver_name = "crc32c-generic",
+ .base.cra_priority = 100,
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct chksum_ctx),
+ .base.cra_module = THIS_MODULE,
+ .base.cra_init = crc32c_cra_init,
+}, {
+ .digestsize = CHKSUM_DIGEST_SIZE,
+ .setkey = chksum_setkey,
+ .init = chksum_init,
+ .update = chksum_update_arch,
+ .final = chksum_final,
+ .finup = chksum_finup_arch,
+ .digest = chksum_digest_arch,
+ .descsize = sizeof(struct chksum_desc_ctx),
+
+ .base.cra_name = "crc32c",
+ .base.cra_driver_name = "crc32c-" __stringify(ARCH),
+ .base.cra_priority = 150,
+ .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct chksum_ctx),
+ .base.cra_module = THIS_MODULE,
+ .base.cra_init = crc32c_cra_init,
+}};
+
+static int num_algs;
+
+static int __init crc32c_mod_init(void)
+{
+ /* register the arch flavor only if it differs from the generic one */
+ num_algs = 1 + ((crc32_optimizations() & CRC32C_OPTIMIZATION) != 0);
+
+ return crypto_register_shashes(algs, num_algs);
+}
+
+static void __exit crc32c_mod_fini(void)
+{
+ crypto_unregister_shashes(algs, num_algs);
+}
+
+subsys_initcall(crc32c_mod_init);
+module_exit(crc32c_mod_fini);
+
+MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
+MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations wrapper for lib/crc32c");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("crc32c");
+MODULE_ALIAS_CRYPTO("crc32c-generic");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Cryptographic API.
- *
- * CRC32C chksum
- *
- *@Article{castagnoli-crc,
- * author = { Guy Castagnoli and Stefan Braeuer and Martin Herrman},
- * title = {{Optimization of Cyclic Redundancy-Check Codes with 24
- * and 32 Parity Bits}},
- * journal = IEEE Transactions on Communication,
- * year = {1993},
- * volume = {41},
- * number = {6},
- * pages = {},
- * month = {June},
- *}
- * Used by the iSCSI driver, possibly others, and derived from
- * the iscsi-crc.c module of the linux-iscsi driver at
- * http://linux-iscsi.sourceforge.net.
- *
- * Following the example of lib/crc32, this function is intended to be
- * flexible and useful for all users. Modules that currently have their
- * own crc32c, but hopefully may be able to use this one are:
- * net/sctp (please add all your doco to here if you change to
- * use this one!)
- * <endoflist>
- *
- * Copyright (c) 2004 Cisco Systems, Inc.
- * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
- */
-
-#include <linux/unaligned.h>
-#include <crypto/internal/hash.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/crc32.h>
-
-#define CHKSUM_BLOCK_SIZE 1
-#define CHKSUM_DIGEST_SIZE 4
-
-struct chksum_ctx {
- u32 key;
-};
-
-struct chksum_desc_ctx {
- u32 crc;
-};
-
-/*
- * Steps through buffer one byte at a time, calculates reflected
- * crc using table.
- */
-
-static int chksum_init(struct shash_desc *desc)
-{
- struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm);
- struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
- ctx->crc = mctx->key;
-
- return 0;
-}
-
-/*
- * Setting the seed allows arbitrary accumulators and flexible XOR policy
- * If your algorithm starts with ~0, then XOR with ~0 before you set
- * the seed.
- */
-static int chksum_setkey(struct crypto_shash *tfm, const u8 *key,
- unsigned int keylen)
-{
- struct chksum_ctx *mctx = crypto_shash_ctx(tfm);
-
- if (keylen != sizeof(mctx->key))
- return -EINVAL;
- mctx->key = get_unaligned_le32(key);
- return 0;
-}
-
-static int chksum_update(struct shash_desc *desc, const u8 *data,
- unsigned int length)
-{
- struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
- ctx->crc = crc32c_base(ctx->crc, data, length);
- return 0;
-}
-
-static int chksum_update_arch(struct shash_desc *desc, const u8 *data,
- unsigned int length)
-{
- struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
- ctx->crc = crc32c(ctx->crc, data, length);
- return 0;
-}
-
-static int chksum_final(struct shash_desc *desc, u8 *out)
-{
- struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
- put_unaligned_le32(~ctx->crc, out);
- return 0;
-}
-
-static int __chksum_finup(u32 *crcp, const u8 *data, unsigned int len, u8 *out)
-{
- put_unaligned_le32(~crc32c_base(*crcp, data, len), out);
- return 0;
-}
-
-static int __chksum_finup_arch(u32 *crcp, const u8 *data, unsigned int len,
- u8 *out)
-{
- put_unaligned_le32(~crc32c(*crcp, data, len), out);
- return 0;
-}
-
-static int chksum_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
- return __chksum_finup(&ctx->crc, data, len, out);
-}
-
-static int chksum_finup_arch(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
- return __chksum_finup_arch(&ctx->crc, data, len, out);
-}
-
-static int chksum_digest(struct shash_desc *desc, const u8 *data,
- unsigned int length, u8 *out)
-{
- struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm);
-
- return __chksum_finup(&mctx->key, data, length, out);
-}
-
-static int chksum_digest_arch(struct shash_desc *desc, const u8 *data,
- unsigned int length, u8 *out)
-{
- struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm);
-
- return __chksum_finup_arch(&mctx->key, data, length, out);
-}
-
-static int crc32c_cra_init(struct crypto_tfm *tfm)
-{
- struct chksum_ctx *mctx = crypto_tfm_ctx(tfm);
-
- mctx->key = ~0;
- return 0;
-}
-
-static struct shash_alg algs[] = {{
- .digestsize = CHKSUM_DIGEST_SIZE,
- .setkey = chksum_setkey,
- .init = chksum_init,
- .update = chksum_update,
- .final = chksum_final,
- .finup = chksum_finup,
- .digest = chksum_digest,
- .descsize = sizeof(struct chksum_desc_ctx),
-
- .base.cra_name = "crc32c",
- .base.cra_driver_name = "crc32c-generic",
- .base.cra_priority = 100,
- .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
- .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct chksum_ctx),
- .base.cra_module = THIS_MODULE,
- .base.cra_init = crc32c_cra_init,
-}, {
- .digestsize = CHKSUM_DIGEST_SIZE,
- .setkey = chksum_setkey,
- .init = chksum_init,
- .update = chksum_update_arch,
- .final = chksum_final,
- .finup = chksum_finup_arch,
- .digest = chksum_digest_arch,
- .descsize = sizeof(struct chksum_desc_ctx),
-
- .base.cra_name = "crc32c",
- .base.cra_driver_name = "crc32c-" __stringify(ARCH),
- .base.cra_priority = 150,
- .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
- .base.cra_blocksize = CHKSUM_BLOCK_SIZE,
- .base.cra_ctxsize = sizeof(struct chksum_ctx),
- .base.cra_module = THIS_MODULE,
- .base.cra_init = crc32c_cra_init,
-}};
-
-static int num_algs;
-
-static int __init crc32c_mod_init(void)
-{
- /* register the arch flavor only if it differs from the generic one */
- num_algs = 1 + ((crc32_optimizations() & CRC32C_OPTIMIZATION) != 0);
-
- return crypto_register_shashes(algs, num_algs);
-}
-
-static void __exit crc32c_mod_fini(void)
-{
- crypto_unregister_shashes(algs, num_algs);
-}
-
-subsys_initcall(crc32c_mod_init);
-module_exit(crc32c_mod_fini);
-
-MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
-MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations wrapper for lib/crc32c");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CRYPTO("crc32c");
-MODULE_ALIAS_CRYPTO("crc32c-generic");
projects / ceph-client.git / commitdiff