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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 11:22:54 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 11:22:54 -0700 |
commit | 70477371dc350746d10431d74f0f213a8d59924c (patch) | |
tree | 6271978b6e4ee4b1e6f22775ad7fc0930c09d3ee /drivers/net/ppp | |
parent | 09fd671ccb2475436bd5f597f751ca4a7d177aea (diff) | |
parent | 34074205bb9f04b416efb3cbedcd90f418c86200 (diff) | |
download | op-kernel-dev-70477371dc350746d10431d74f0f213a8d59924c.zip op-kernel-dev-70477371dc350746d10431d74f0f213a8d59924c.tar.gz |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
"Here is the crypto update for 4.6:
API:
- Convert remaining crypto_hash users to shash or ahash, also convert
blkcipher/ablkcipher users to skcipher.
- Remove crypto_hash interface.
- Remove crypto_pcomp interface.
- Add crypto engine for async cipher drivers.
- Add akcipher documentation.
- Add skcipher documentation.
Algorithms:
- Rename crypto/crc32 to avoid name clash with lib/crc32.
- Fix bug in keywrap where we zero the wrong pointer.
Drivers:
- Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver.
- Add PIC32 hwrng driver.
- Support BCM6368 in bcm63xx hwrng driver.
- Pack structs for 32-bit compat users in qat.
- Use crypto engine in omap-aes.
- Add support for sama5d2x SoCs in atmel-sha.
- Make atmel-sha available again.
- Make sahara hashing available again.
- Make ccp hashing available again.
- Make sha1-mb available again.
- Add support for multiple devices in ccp.
- Improve DMA performance in caam.
- Add hashing support to rockchip"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits)
crypto: qat - remove redundant arbiter configuration
crypto: ux500 - fix checks of error code returned by devm_ioremap_resource()
crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
crypto: qat - Change the definition of icp_qat_uof_regtype
hwrng: exynos - use __maybe_unused to hide pm functions
crypto: ccp - Add abstraction for device-specific calls
crypto: ccp - CCP versioning support
crypto: ccp - Support for multiple CCPs
crypto: ccp - Remove check for x86 family and model
crypto: ccp - memset request context to zero during import
lib/mpi: use "static inline" instead of "extern inline"
lib/mpi: avoid assembler warning
hwrng: bcm63xx - fix non device tree compatibility
crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode.
crypto: qat - The AE id should be less than the maximal AE number
lib/mpi: Endianness fix
crypto: rockchip - add hash support for crypto engine in rk3288
crypto: xts - fix compile errors
crypto: doc - add skcipher API documentation
crypto: doc - update AEAD AD handling
...
Diffstat (limited to 'drivers/net/ppp')
-rw-r--r-- | drivers/net/ppp/ppp_mppe.c | 99 |
1 files changed, 58 insertions, 41 deletions
diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c index 05005c6..f60f766 100644 --- a/drivers/net/ppp/ppp_mppe.c +++ b/drivers/net/ppp/ppp_mppe.c @@ -42,6 +42,8 @@ * deprecated in 2.6 */ +#include <crypto/hash.h> +#include <crypto/skcipher.h> #include <linux/err.h> #include <linux/module.h> #include <linux/kernel.h> @@ -49,7 +51,6 @@ #include <linux/types.h> #include <linux/slab.h> #include <linux/string.h> -#include <linux/crypto.h> #include <linux/mm.h> #include <linux/ppp_defs.h> #include <linux/ppp-comp.h> @@ -94,8 +95,8 @@ static inline void sha_pad_init(struct sha_pad *shapad) * State for an MPPE (de)compressor. */ struct ppp_mppe_state { - struct crypto_blkcipher *arc4; - struct crypto_hash *sha1; + struct crypto_skcipher *arc4; + struct crypto_ahash *sha1; unsigned char *sha1_digest; unsigned char master_key[MPPE_MAX_KEY_LEN]; unsigned char session_key[MPPE_MAX_KEY_LEN]; @@ -135,7 +136,7 @@ struct ppp_mppe_state { */ static void get_new_key_from_sha(struct ppp_mppe_state * state) { - struct hash_desc desc; + AHASH_REQUEST_ON_STACK(req, state->sha1); struct scatterlist sg[4]; unsigned int nbytes; @@ -148,10 +149,12 @@ static void get_new_key_from_sha(struct ppp_mppe_state * state) nbytes += setup_sg(&sg[3], sha_pad->sha_pad2, sizeof(sha_pad->sha_pad2)); - desc.tfm = state->sha1; - desc.flags = 0; + ahash_request_set_tfm(req, state->sha1); + ahash_request_set_callback(req, 0, NULL, NULL); + ahash_request_set_crypt(req, sg, state->sha1_digest, nbytes); - crypto_hash_digest(&desc, sg, nbytes, state->sha1_digest); + crypto_ahash_digest(req); + ahash_request_zero(req); } /* @@ -161,20 +164,23 @@ static void get_new_key_from_sha(struct ppp_mppe_state * state) static void mppe_rekey(struct ppp_mppe_state * state, int initial_key) { struct scatterlist sg_in[1], sg_out[1]; - struct blkcipher_desc desc = { .tfm = state->arc4 }; + SKCIPHER_REQUEST_ON_STACK(req, state->arc4); + + skcipher_request_set_tfm(req, state->arc4); + skcipher_request_set_callback(req, 0, NULL, NULL); get_new_key_from_sha(state); if (!initial_key) { - crypto_blkcipher_setkey(state->arc4, state->sha1_digest, - state->keylen); + crypto_skcipher_setkey(state->arc4, state->sha1_digest, + state->keylen); sg_init_table(sg_in, 1); sg_init_table(sg_out, 1); setup_sg(sg_in, state->sha1_digest, state->keylen); setup_sg(sg_out, state->session_key, state->keylen); - if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in, - state->keylen) != 0) { + skcipher_request_set_crypt(req, sg_in, sg_out, state->keylen, + NULL); + if (crypto_skcipher_encrypt(req)) printk(KERN_WARNING "mppe_rekey: cipher_encrypt failed\n"); - } } else { memcpy(state->session_key, state->sha1_digest, state->keylen); } @@ -184,7 +190,8 @@ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key) state->session_key[1] = 0x26; state->session_key[2] = 0x9e; } - crypto_blkcipher_setkey(state->arc4, state->session_key, state->keylen); + crypto_skcipher_setkey(state->arc4, state->session_key, state->keylen); + skcipher_request_zero(req); } /* @@ -204,19 +211,19 @@ static void *mppe_alloc(unsigned char *options, int optlen) goto out; - state->arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); + state->arc4 = crypto_alloc_skcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(state->arc4)) { state->arc4 = NULL; goto out_free; } - state->sha1 = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC); + state->sha1 = crypto_alloc_ahash("sha1", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(state->sha1)) { state->sha1 = NULL; goto out_free; } - digestsize = crypto_hash_digestsize(state->sha1); + digestsize = crypto_ahash_digestsize(state->sha1); if (digestsize < MPPE_MAX_KEY_LEN) goto out_free; @@ -237,15 +244,12 @@ static void *mppe_alloc(unsigned char *options, int optlen) return (void *)state; - out_free: - if (state->sha1_digest) - kfree(state->sha1_digest); - if (state->sha1) - crypto_free_hash(state->sha1); - if (state->arc4) - crypto_free_blkcipher(state->arc4); - kfree(state); - out: +out_free: + kfree(state->sha1_digest); + crypto_free_ahash(state->sha1); + crypto_free_skcipher(state->arc4); + kfree(state); +out: return NULL; } @@ -256,13 +260,10 @@ static void mppe_free(void *arg) { struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg; if (state) { - if (state->sha1_digest) kfree(state->sha1_digest); - if (state->sha1) - crypto_free_hash(state->sha1); - if (state->arc4) - crypto_free_blkcipher(state->arc4); - kfree(state); + crypto_free_ahash(state->sha1); + crypto_free_skcipher(state->arc4); + kfree(state); } } @@ -368,8 +369,9 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf, int isize, int osize) { struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg; - struct blkcipher_desc desc = { .tfm = state->arc4 }; + SKCIPHER_REQUEST_ON_STACK(req, state->arc4); int proto; + int err; struct scatterlist sg_in[1], sg_out[1]; /* @@ -426,7 +428,13 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf, sg_init_table(sg_out, 1); setup_sg(sg_in, ibuf, isize); setup_sg(sg_out, obuf, osize); - if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in, isize) != 0) { + + skcipher_request_set_tfm(req, state->arc4); + skcipher_request_set_callback(req, 0, NULL, NULL); + skcipher_request_set_crypt(req, sg_in, sg_out, isize, NULL); + err = crypto_skcipher_encrypt(req); + skcipher_request_zero(req); + if (err) { printk(KERN_DEBUG "crypto_cypher_encrypt failed\n"); return -1; } @@ -475,7 +483,7 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, int osize) { struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg; - struct blkcipher_desc desc = { .tfm = state->arc4 }; + SKCIPHER_REQUEST_ON_STACK(req, state->arc4); unsigned ccount; int flushed = MPPE_BITS(ibuf) & MPPE_BIT_FLUSHED; struct scatterlist sg_in[1], sg_out[1]; @@ -609,9 +617,14 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, sg_init_table(sg_out, 1); setup_sg(sg_in, ibuf, 1); setup_sg(sg_out, obuf, 1); - if (crypto_blkcipher_decrypt(&desc, sg_out, sg_in, 1) != 0) { + + skcipher_request_set_tfm(req, state->arc4); + skcipher_request_set_callback(req, 0, NULL, NULL); + skcipher_request_set_crypt(req, sg_in, sg_out, 1, NULL); + if (crypto_skcipher_decrypt(req)) { printk(KERN_DEBUG "crypto_cypher_decrypt failed\n"); - return DECOMP_ERROR; + osize = DECOMP_ERROR; + goto out_zap_req; } /* @@ -629,9 +642,11 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, /* And finally, decrypt the rest of the packet. */ setup_sg(sg_in, ibuf + 1, isize - 1); setup_sg(sg_out, obuf + 1, osize - 1); - if (crypto_blkcipher_decrypt(&desc, sg_out, sg_in, isize - 1)) { + skcipher_request_set_crypt(req, sg_in, sg_out, isize - 1, NULL); + if (crypto_skcipher_decrypt(req)) { printk(KERN_DEBUG "crypto_cypher_decrypt failed\n"); - return DECOMP_ERROR; + osize = DECOMP_ERROR; + goto out_zap_req; } state->stats.unc_bytes += osize; @@ -642,6 +657,8 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, /* good packet credit */ state->sanity_errors >>= 1; +out_zap_req: + skcipher_request_zero(req); return osize; sanity_error: @@ -714,8 +731,8 @@ static struct compressor ppp_mppe = { static int __init ppp_mppe_init(void) { int answer; - if (!(crypto_has_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC) && - crypto_has_hash("sha1", 0, CRYPTO_ALG_ASYNC))) + if (!(crypto_has_skcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC) && + crypto_has_ahash("sha1", 0, CRYPTO_ALG_ASYNC))) return -ENODEV; sha_pad = kmalloc(sizeof(struct sha_pad), GFP_KERNEL); |