summaryrefslogtreecommitdiff
path: root/drivers/net/ppp
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 21:22:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 21:22:54 +0300
commit70477371dc350746d10431d74f0f213a8d59924c (patch)
tree6271978b6e4ee4b1e6f22775ad7fc0930c09d3ee /drivers/net/ppp
parent09fd671ccb2475436bd5f597f751ca4a7d177aea (diff)
parent34074205bb9f04b416efb3cbedcd90f418c86200 (diff)
downloadlinux-70477371dc350746d10431d74f0f213a8d59924c.tar.xz
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.c99
1 files changed, 58 insertions, 41 deletions
diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c
index 05005c660d4d..f60f7660b451 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);