Release 4.11 crypto/gcm.c
/*
* GCM: Galois/Counter Mode.
*
* Copyright (c) 2007 Nokia Siemens Networks - Mikko Herranen <mh1@iki.fi>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <crypto/gf128mul.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
#include <crypto/internal/hash.h>
#include <crypto/null.h>
#include <crypto/scatterwalk.h>
#include <crypto/hash.h>
#include "internal.h"
#include <linux/completion.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
struct gcm_instance_ctx {
struct crypto_skcipher_spawn ctr;
struct crypto_ahash_spawn ghash;
};
struct crypto_gcm_ctx {
struct crypto_skcipher *ctr;
struct crypto_ahash *ghash;
};
struct crypto_rfc4106_ctx {
struct crypto_aead *child;
u8 nonce[4];
};
struct crypto_rfc4106_req_ctx {
struct scatterlist src[3];
struct scatterlist dst[3];
struct aead_request subreq;
};
struct crypto_rfc4543_instance_ctx {
struct crypto_aead_spawn aead;
};
struct crypto_rfc4543_ctx {
struct crypto_aead *child;
struct crypto_skcipher *null;
u8 nonce[4];
};
struct crypto_rfc4543_req_ctx {
struct aead_request subreq;
};
struct crypto_gcm_ghash_ctx {
unsigned int cryptlen;
struct scatterlist *src;
int (*complete)(struct aead_request *req, u32 flags);
};
struct crypto_gcm_req_priv_ctx {
u8 iv[16];
u8 auth_tag[16];
u8 iauth_tag[16];
struct scatterlist src[3];
struct scatterlist dst[3];
struct scatterlist sg;
struct crypto_gcm_ghash_ctx ghash_ctx;
union {
struct ahash_request ahreq;
struct skcipher_request skreq;
}
u;
};
struct crypto_gcm_setkey_result {
int err;
struct completion completion;
};
static struct {
u8 buf[16];
struct scatterlist sg;
}
*gcm_zeroes;
static int crypto_rfc4543_copy_src_to_dst(struct aead_request *req, bool enc);
static inline struct crypto_gcm_req_priv_ctx *crypto_gcm_reqctx(
struct aead_request *req)
{
unsigned long align = crypto_aead_alignmask(crypto_aead_reqtfm(req));
return (void *)PTR_ALIGN((u8 *)aead_request_ctx(req), align + 1);
}
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Herbert Xu | 47 | 100.00% | 1 | 100.00% |
Total | 47 | 100.00% | 1 | 100.00% |
static void crypto_gcm_setkey_done(struct crypto_async_request *req, int err)
{
struct crypto_gcm_setkey_result *result = req->data;
if (err == -EINPROGRESS)
return;
result->err = err;
complete(&result->completion);
}
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Huang Ying | 28 | 62.22% | 1 | 50.00% |
Mikko Herranen | 17 | 37.78% | 1 | 50.00% |
Total | 45 | 100.00% | 2 | 100.00% |
static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct crypto_gcm_ctx *ctx = crypto_aead_ctx(aead);
struct crypto_ahash *ghash = ctx->ghash;
struct crypto_skcipher *ctr = ctx->ctr;
struct {
be128 hash;
u8 iv[16];
struct crypto_gcm_setkey_result result;
struct scatterlist sg[1];
struct skcipher_request req;
} *data;
int err;
crypto_skcipher_clear_flags(ctr, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(ctr, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(ctr, key, keylen);
crypto_aead_set_flags(aead, crypto_skcipher_get_flags(ctr) &
CRYPTO_TFM_RES_MASK);
if (err)
return err;
data = kzalloc(sizeof(*data) + crypto_skcipher_reqsize(ctr),
GFP_KERNEL);
if (!data)
return -ENOMEM;
init_completion(&data->result.completion);
sg_init_one(data->sg, &data->hash, sizeof(data->hash));
skcipher_request_set_tfm(&data->req, ctr);
skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
CRYPTO_TFM_REQ_MAY_BACKLOG,
crypto_gcm_setkey_done,
&data->result);
skcipher_request_set_crypt(&data->req, data->sg, data->sg,
sizeof(data->hash), data->iv);
err = crypto_skcipher_encrypt(&data->req);
if (err == -EINPROGRESS || err == -EBUSY) {
err = wait_for_completion_interruptible(
&data->result.completion);
if (!err)
err = data->result.err;
}
if (err)
goto out;
crypto_ahash_clear_flags(ghash, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(ghash, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
err = crypto_ahash_setkey(ghash, (u8 *)&data->hash, sizeof(be128));
crypto_aead_set_flags(aead, crypto_ahash_get_flags(ghash) &
CRYPTO_TFM_RES_MASK);
out:
kzfree(data);
return err;
}
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Mikko Herranen | 38 | 10.56% | 1 | 20.00% |
Herbert Xu | 19 | 5.28% | 2 | 40.00% |
Ondrej Mosnáček | 1 | 0.28% | 1 | 20.00% |
Total | 360 | 100.00% | 5 | 100.00% |
static int crypto_gcm_setauthsize(struct crypto_aead *tfm,
unsigned int authsize)
{
switch (authsize) {
case 4:
case 8:
case 12:
case 13:
case 14:
case 15:
case 16:
break;
default:
return -EINVAL;
}
return 0;
}
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Huang Ying | 51 | 100.00% | 1 | 100.00% |
Total | 51 | 100.00% | 1 | 100.00% |
static void crypto_gcm_init_common(struct aead_request *req)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
__be32 counter = cpu_to_be32(1);
struct scatterlist *sg;
memset(pctx->auth_tag, 0, sizeof(pctx->auth_tag));
memcpy(pctx->iv, req->iv, 12);
memcpy(pctx->iv + 12, &counter, 4);
sg_init_table(pctx->src, 3);
sg_set_buf(pctx->src, pctx->auth_tag, sizeof(pctx->auth_tag));
sg = scatterwalk_ffwd(pctx->src + 1, req->src, req->assoclen);
if (sg != pctx->src + 1)
sg_chain(pctx->src, 2, sg);
if (req->src != req->dst) {
sg_init_table(pctx->dst, 3);
sg_set_buf(pctx->dst, pctx->auth_tag, sizeof(pctx->auth_tag));
sg = scatterwalk_ffwd(pctx->dst + 1, req->dst, req->assoclen);
if (sg != pctx->dst + 1)
sg_chain(pctx->dst, 2, sg);
}
}
Contributors
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Huang Ying | 156 | 69.96% | 1 | 25.00% |
Herbert Xu | 64 | 28.70% | 1 | 25.00% |
Dan J Williams | 2 | 0.90% | 1 | 25.00% |
Mikko Herranen | 1 | 0.45% | 1 | 25.00% |
Total | 223 | 100.00% | 4 | 100.00% |
static void crypto_gcm_init_crypt(struct aead_request *req,
unsigned int cryptlen)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_gcm_ctx *ctx = crypto_aead_ctx(aead);
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct skcipher_request *skreq = &pctx->u.skreq;
struct scatterlist *dst;
dst = req->src == req->dst ? pctx->src : pctx->dst;
skcipher_request_set_tfm(skreq, ctx->ctr);
skcipher_request_set_crypt(skreq, pctx->src, dst,
cryptlen + sizeof(pctx->auth_tag),
pctx->iv);
}
Contributors
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Herbert Xu | 105 | 92.92% | 2 | 50.00% |
Huang Ying | 7 | 6.19% | 1 | 25.00% |
Mikko Herranen | 1 | 0.88% | 1 | 25.00% |
Total | 113 | 100.00% | 4 | 100.00% |
static inline unsigned int gcm_remain(unsigned int len)
{
len &= 0xfU;
return len ? 16 - len : 0;
}
Contributors
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Herbert Xu | 21 | 84.00% | 1 | 50.00% |
Huang Ying | 4 | 16.00% | 1 | 50.00% |
Total | 25 | 100.00% | 2 | 100.00% |
static void gcm_hash_len_done(struct crypto_async_request *areq, int err);
static int gcm_hash_update(struct aead_request *req,
crypto_completion_t compl,
struct scatterlist *src,
unsigned int len, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct ahash_request *ahreq = &pctx->u.ahreq;
ahash_request_set_callback(ahreq, flags, compl, req);
ahash_request_set_crypt(ahreq, src, NULL, len);
return crypto_ahash_update(ahreq);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 34 | 44.74% | 1 | 25.00% |
Mikko Herranen | 26 | 34.21% | 1 | 25.00% |
Herbert Xu | 14 | 18.42% | 1 | 25.00% |
Mark D Rustad | 2 | 2.63% | 1 | 25.00% |
Total | 76 | 100.00% | 4 | 100.00% |
static int gcm_hash_remain(struct aead_request *req,
unsigned int remain,
crypto_completion_t compl, u32 flags)
{
return gcm_hash_update(req, compl, &gcm_zeroes->sg, remain, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 25 | 65.79% | 1 | 25.00% |
Herbert Xu | 9 | 23.68% | 1 | 25.00% |
Mikko Herranen | 2 | 5.26% | 1 | 25.00% |
Mark D Rustad | 2 | 5.26% | 1 | 25.00% |
Total | 38 | 100.00% | 4 | 100.00% |
static int gcm_hash_len(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct ahash_request *ahreq = &pctx->u.ahreq;
struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx;
u128 lengths;
lengths.a = cpu_to_be64(req->assoclen * 8);
lengths.b = cpu_to_be64(gctx->cryptlen * 8);
memcpy(pctx->iauth_tag, &lengths, 16);
sg_init_one(&pctx->sg, pctx->iauth_tag, 16);
ahash_request_set_callback(ahreq, flags, gcm_hash_len_done, req);
ahash_request_set_crypt(ahreq, &pctx->sg,
pctx->iauth_tag, sizeof(lengths));
return crypto_ahash_finup(ahreq);
}
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Huang Ying | 109 | 79.56% | 1 | 33.33% |
Herbert Xu | 19 | 13.87% | 1 | 33.33% |
Mikko Herranen | 9 | 6.57% | 1 | 33.33% |
Total | 137 | 100.00% | 3 | 100.00% |
static int gcm_hash_len_continue(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx;
return gctx->complete(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 25 | 56.82% | 2 | 50.00% |
Herbert Xu | 15 | 34.09% | 1 | 25.00% |
Mikko Herranen | 4 | 9.09% | 1 | 25.00% |
Total | 44 | 100.00% | 4 | 100.00% |
static void gcm_hash_len_done(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;
if (err)
goto out;
err = gcm_hash_len_continue(req, 0);
if (err == -EINPROGRESS)
return;
out:
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 24 | 42.86% | 2 | 50.00% |
Mikko Herranen | 23 | 41.07% | 1 | 25.00% |
Herbert Xu | 9 | 16.07% | 1 | 25.00% |
Total | 56 | 100.00% | 4 | 100.00% |
static int gcm_hash_crypt_remain_continue(struct aead_request *req, u32 flags)
{
return gcm_hash_len(req, flags) ?:
gcm_hash_len_continue(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 17 | 56.67% | 1 | 33.33% |
Mikko Herranen | 8 | 26.67% | 1 | 33.33% |
Huang Ying | 5 | 16.67% | 1 | 33.33% |
Total | 30 | 100.00% | 3 | 100.00% |
static void gcm_hash_crypt_remain_done(struct crypto_async_request *areq,
int err)
{
struct aead_request *req = areq->data;
if (err)
goto out;
err = gcm_hash_crypt_remain_continue(req, 0);
if (err == -EINPROGRESS)
return;
out:
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 28 | 50.00% | 2 | 40.00% |
Herbert Xu | 20 | 35.71% | 2 | 40.00% |
Mikko Herranen | 8 | 14.29% | 1 | 20.00% |
Total | 56 | 100.00% | 5 | 100.00% |
static int gcm_hash_crypt_continue(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx;
unsigned int remain;
remain = gcm_remain(gctx->cryptlen);
if (remain)
return gcm_hash_remain(req, remain,
gcm_hash_crypt_remain_done, flags) ?:
gcm_hash_crypt_remain_continue(req, flags);
return gcm_hash_crypt_remain_continue(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 36 | 45.57% | 2 | 50.00% |
Herbert Xu | 22 | 27.85% | 1 | 25.00% |
Mikko Herranen | 21 | 26.58% | 1 | 25.00% |
Total | 79 | 100.00% | 4 | 100.00% |
static void gcm_hash_crypt_done(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;
if (err)
goto out;
err = gcm_hash_crypt_continue(req, 0);
if (err == -EINPROGRESS)
return;
out:
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 28 | 50.00% | 2 | 50.00% |
Huang Ying | 28 | 50.00% | 2 | 50.00% |
Total | 56 | 100.00% | 4 | 100.00% |
static int gcm_hash_assoc_remain_continue(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx;
if (gctx->cryptlen)
return gcm_hash_update(req, gcm_hash_crypt_done,
gctx->src, gctx->cryptlen, flags) ?:
gcm_hash_crypt_continue(req, flags);
return gcm_hash_crypt_remain_continue(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 43 | 58.11% | 2 | 50.00% |
Herbert Xu | 31 | 41.89% | 2 | 50.00% |
Total | 74 | 100.00% | 4 | 100.00% |
static void gcm_hash_assoc_remain_done(struct crypto_async_request *areq,
int err)
{
struct aead_request *req = areq->data;
if (err)
goto out;
err = gcm_hash_assoc_remain_continue(req, 0);
if (err == -EINPROGRESS)
return;
out:
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 28 | 50.00% | 2 | 50.00% |
Herbert Xu | 27 | 48.21% | 1 | 25.00% |
Mikko Herranen | 1 | 1.79% | 1 | 25.00% |
Total | 56 | 100.00% | 4 | 100.00% |
static int gcm_hash_assoc_continue(struct aead_request *req, u32 flags)
{
unsigned int remain;
remain = gcm_remain(req->assoclen);
if (remain)
return gcm_hash_remain(req, remain,
gcm_hash_assoc_remain_done, flags) ?:
gcm_hash_assoc_remain_continue(req, flags);
return gcm_hash_assoc_remain_continue(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 27 | 45.76% | 2 | 40.00% |
Herbert Xu | 25 | 42.37% | 2 | 40.00% |
Mikko Herranen | 7 | 11.86% | 1 | 20.00% |
Total | 59 | 100.00% | 5 | 100.00% |
static void gcm_hash_assoc_done(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;
if (err)
goto out;
err = gcm_hash_assoc_continue(req, 0);
if (err == -EINPROGRESS)
return;
out:
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 35 | 62.50% | 2 | 50.00% |
Huang Ying | 21 | 37.50% | 2 | 50.00% |
Total | 56 | 100.00% | 4 | 100.00% |
static int gcm_hash_init_continue(struct aead_request *req, u32 flags)
{
if (req->assoclen)
return gcm_hash_update(req, gcm_hash_assoc_done,
req->src, req->assoclen, flags) ?:
gcm_hash_assoc_continue(req, flags);
return gcm_hash_assoc_remain_continue(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Huang Ying | 34 | 62.96% | 2 | 50.00% |
Herbert Xu | 20 | 37.04% | 2 | 50.00% |
Total | 54 | 100.00% | 4 | 100.00% |
static void gcm_hash_init_done(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;
if (err)
goto out;
err = gcm_hash_init_continue(req, 0);
if (err == -EINPROGRESS)
return;
out:
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 28 | 50.00% | 2 | 50.00% |
Huang Ying | 28 | 50.00% | 2 | 50.00% |
Total | 56 | 100.00% | 4 | 100.00% |
static int gcm_hash(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct ahash_request *ahreq = &pctx->u.ahreq;
struct crypto_gcm_ctx *ctx = crypto_aead_ctx(crypto_aead_reqtfm(req));
ahash_request_set_tfm(ahreq, ctx->ghash);
ahash_request_set_callback(ahreq, flags, gcm_hash_init_done, req);
return crypto_ahash_init(ahreq) ?:
gcm_hash_init_continue(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 34 | 40.96% | 2 | 50.00% |
Huang Ying | 25 | 30.12% | 1 | 25.00% |
Mikko Herranen | 24 | 28.92% | 1 | 25.00% |
Total | 83 | 100.00% | 4 | 100.00% |
static int gcm_enc_copy_hash(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
u8 *auth_tag = pctx->auth_tag;
crypto_xor(auth_tag, pctx->iauth_tag, 16);
scatterwalk_map_and_copy(auth_tag, req->dst,
req->assoclen + req->cryptlen,
crypto_aead_authsize(aead), 1);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 64 | 80.00% | 2 | 50.00% |
Huang Ying | 9 | 11.25% | 1 | 25.00% |
Mikko Herranen | 7 | 8.75% | 1 | 25.00% |
Total | 80 | 100.00% | 4 | 100.00% |
static int gcm_encrypt_continue(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx;
gctx->src = sg_next(req->src == req->dst ? pctx->src : pctx->dst);
gctx->cryptlen = req->cryptlen;
gctx->complete = gcm_enc_copy_hash;
return gcm_hash(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 63 | 79.75% | 2 | 50.00% |
Huang Ying | 11 | 13.92% | 1 | 25.00% |
Mikko Herranen | 5 | 6.33% | 1 | 25.00% |
Total | 79 | 100.00% | 4 | 100.00% |
static void gcm_encrypt_done(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;
if (err)
goto out;
err = gcm_encrypt_continue(req, 0);
if (err == -EINPROGRESS)
return;
out:
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 37 | 66.07% | 1 | 33.33% |
Huang Ying | 14 | 25.00% | 1 | 33.33% |
Mikko Herranen | 5 | 8.93% | 1 | 33.33% |
Total | 56 | 100.00% | 3 | 100.00% |
static int crypto_gcm_encrypt(struct aead_request *req)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct skcipher_request *skreq = &pctx->u.skreq;
u32 flags = aead_request_flags(req);
crypto_gcm_init_common(req);
crypto_gcm_init_crypt(req, req->cryptlen);
skcipher_request_set_callback(skreq, flags, gcm_encrypt_done, req);
return crypto_skcipher_encrypt(skreq) ?:
gcm_encrypt_continue(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 53 | 66.25% | 3 | 60.00% |
Mikko Herranen | 23 | 28.75% | 1 | 20.00% |
Huang Ying | 4 | 5.00% | 1 | 20.00% |
Total | 80 | 100.00% | 5 | 100.00% |
static int crypto_gcm_verify(struct aead_request *req)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
u8 *auth_tag = pctx->auth_tag;
u8 *iauth_tag = pctx->iauth_tag;
unsigned int authsize = crypto_aead_authsize(aead);
unsigned int cryptlen = req->cryptlen - authsize;
crypto_xor(auth_tag, iauth_tag, 16);
scatterwalk_map_and_copy(iauth_tag, req->src,
req->assoclen + cryptlen, authsize, 0);
return crypto_memneq(iauth_tag, auth_tag, authsize) ? -EBADMSG : 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 87 | 79.82% | 2 | 40.00% |
Huang Ying | 20 | 18.35% | 2 | 40.00% |
Mikko Herranen | 2 | 1.83% | 1 | 20.00% |
Total | 109 | 100.00% | 5 | 100.00% |
static void gcm_decrypt_done(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;
if (!err)
err = crypto_gcm_verify(req);
aead_request_complete(req, err);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 36 | 85.71% | 3 | 75.00% |
Huang Ying | 6 | 14.29% | 1 | 25.00% |
Total | 42 | 100.00% | 4 | 100.00% |
static int gcm_dec_hash_continue(struct aead_request *req, u32 flags)
{
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct skcipher_request *skreq = &pctx->u.skreq;
struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx;
crypto_gcm_init_crypt(req, gctx->cryptlen);
skcipher_request_set_callback(skreq, flags, gcm_decrypt_done, req);
return crypto_skcipher_decrypt(skreq) ?: crypto_gcm_verify(req);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 62 | 79.49% | 4 | 66.67% |
Huang Ying | 14 | 17.95% | 1 | 16.67% |
Mikko Herranen | 2 | 2.56% | 1 | 16.67% |
Total | 78 | 100.00% | 6 | 100.00% |
static int crypto_gcm_decrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req);
struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx;
unsigned int authsize = crypto_aead_authsize(aead);
unsigned int cryptlen = req->cryptlen;
u32 flags = aead_request_flags(req);
cryptlen -= authsize;
crypto_gcm_init_common(req);
gctx->src = sg_next(pctx->src);
gctx->cryptlen = cryptlen;
gctx->complete = gcm_dec_hash_continue;
return gcm_hash(req, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 86 | 81.13% | 3 | 75.00% |
Mikko Herranen | 20 | 18.87% | 1 | 25.00% |
Total | 106 | 100.00% | 4 | 100.00% |
static int crypto_gcm_init_tfm(struct crypto_aead *tfm)
{
struct aead_instance *inst = aead_alg_instance(tfm);
struct gcm_instance_ctx *ictx = aead_instance_ctx(inst);
struct crypto_gcm_ctx *ctx = crypto_aead_ctx(tfm);
struct crypto_skcipher *ctr;
struct crypto_ahash *ghash;
unsigned long align;
int err;
ghash = crypto_spawn_ahash(&ictx->ghash);
if (IS_ERR(ghash))
return PTR_ERR(ghash);
ctr = crypto_spawn_skcipher(&ictx->ctr);
err = PTR_ERR(ctr);
if (IS_ERR(ctr))
goto err_free_hash;
ctx->ctr = ctr;
ctx->ghash = ghash;
align = crypto_aead_alignmask(tfm);
align &= ~(crypto_tfm_ctx_alignment() - 1);
crypto_aead_set_reqsize(tfm,
align + offsetof(struct crypto_gcm_req_priv_ctx, u) +
max(sizeof(struct skcipher_request) +
crypto_skcipher_reqsize(ctr),
sizeof(struct ahash_request) +
crypto_ahash_reqsize(ghash)));
return 0;
err_free_hash:
crypto_free_ahash(ghash);
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 80 | 42.11% | 6 | 60.00% |
Huang Ying | 71 | 37.37% | 2 | 20.00% |
Mikko Herranen | 38 | 20.00% | 1 | 10.00% |
Eric Biggers | 1 | 0.53% | 1 | 10.00% |
Total | 190 | 100.00% | 10 | 100.00% |
static void crypto_gcm_exit_tfm(struct crypto_aead *tfm)
{
struct crypto_gcm_ctx *ctx = crypto_aead_ctx(tfm);
crypto_free_ahash(ctx->ghash);
crypto_free_skcipher(ctx->ctr);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Mikko Herranen | 30 | 85.71% | 1 | 25.00% |
Herbert Xu | 3 | 8.57% | 2 | 50.00% |
Huang Ying | 2 | 5.71% | 1 | 25.00% |
Total | 35 | 100.00% | 4 | 100.00% |
static void crypto_gcm_free(struct aead_instance *inst)
{
struct gcm_instance_ctx *ctx = aead_instance_ctx(inst);
crypto_drop_skcipher(&ctx->ctr);
crypto_drop_ahash(&ctx->ghash);
kfree(inst);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 42 | 100.00% | 1 | 100.00% |
Total | 42 | 100.00% | 1 | 100.00% |
static int crypto_gcm_create_common(struct crypto_template *tmpl,
struct rtattr **tb,
const char *full_name,
const char *ctr_name,
const char *ghash_name)
{
struct crypto_attr_type *algt;
struct aead_instance *inst;
struct skcipher_alg *ctr;
struct crypto_alg *ghash_alg;
struct hash_alg_common *ghash;
struct gcm_instance_ctx *ctx;
int err;
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
ghash_alg = crypto_find_alg(ghash_name, &crypto_ahash_type,
CRYPTO_ALG_TYPE_HASH,
CRYPTO_ALG_TYPE_AHASH_MASK |
crypto_requires_sync(algt->type,
algt->mask));
if (IS_ERR(ghash_alg))
return PTR_ERR(ghash_alg);
ghash = __crypto_hash_alg_common(ghash_alg);
err = -ENOMEM;
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
if (!inst)
goto out_put_ghash;
ctx = aead_instance_ctx(inst);
err = crypto_init_ahash_spawn(&ctx->ghash, ghash,
aead_crypto_instance(inst));
if (err)
goto err_free_inst;
err = -EINVAL;
if (ghash->digestsize != 16)
goto err_drop_ghash;
crypto_set_skcipher_spawn(&ctx->ctr, aead_crypto_instance(inst));
err = crypto_grab_skcipher(&ctx->ctr, ctr_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_drop_ghash;
ctr = crypto_spawn_skcipher_alg(&ctx->ctr);
/* We only support 16-byte blocks. */
err = -EINVAL;
if (crypto_skcipher_alg_ivsize(ctr) != 16)
goto out_put_ctr;
/* Not a stream cipher? */
if (ctr->base.cra_blocksize != 1)
goto out_put_ctr;
err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"gcm_base(%s,%s)", ctr->base.cra_driver_name,
ghash_alg->cra_driver_name) >=
CRYPTO_MAX_ALG_NAME)
goto out_put_ctr;
memcpy(inst->alg.base.cra_name, full_name, CRYPTO_MAX_ALG_NAME);
inst->alg.base.cra_flags = (ghash->base.cra_flags |
ctr->base.cra_flags) & CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = (ghash->base.cra_priority +
ctr->base.cra_priority) / 2;
inst->alg.base.cra_blocksize = 1;
inst->alg.base.cra_alignmask = ghash->base.cra_alignmask |
ctr->base.cra_alignmask;
inst->alg.base.cra_ctxsize = sizeof(struct crypto_gcm_ctx);
inst->alg.ivsize = 12;
inst->alg.chunksize = crypto_skcipher_alg_chunksize(ctr);
inst->alg.maxauthsize = 16;
inst->alg.init = crypto_gcm_init_tfm;
inst->alg.exit = crypto_gcm_exit_tfm;
inst->alg.setkey = crypto_gcm_setkey;
inst->alg.setauthsize = crypto_gcm_setauthsize;
inst->alg.encrypt = crypto_gcm_encrypt;
inst->alg.decrypt = crypto_gcm_decrypt;
inst->free = crypto_gcm_free;
err = aead_register_instance(tmpl, inst);
if (err)
goto out_put_ctr;
out_put_ghash:
crypto_mod_put(ghash_alg);
return err;
out_put_ctr:
crypto_drop_skcipher(&ctx->ctr);
err_drop_ghash:
crypto_drop_ahash(&ctx->ghash);
err_free_inst:
kfree(inst);
goto out_put_ghash;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 302 | 50.76% | 9 | 64.29% |
Mikko Herranen | 198 | 33.28% | 1 | 7.14% |
Huang Ying | 87 | 14.62% | 1 | 7.14% |
Wei Yongjun | 5 | 0.84% | 1 | 7.14% |
Julia Lawall | 2 | 0.34% | 1 | 7.14% |
Eric Biggers | 1 | 0.17% | 1 | 7.14% |
Total | 595 | 100.00% | 14 | 100.00% |
static int crypto_gcm_create(struct crypto_template *tmpl, struct rtattr **tb)
{
const char *cipher_name;
char ctr_name[CRYPTO_MAX_ALG_NAME];
char full_name[CRYPTO_MAX_ALG_NAME];
cipher_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(cipher_name))
return PTR_ERR(cipher_name);
if (snprintf(ctr_name, CRYPTO_MAX_ALG_NAME, "ctr(%s)", cipher_name) >=
CRYPTO_MAX_ALG_NAME)
return -ENAMETOOLONG;
if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "gcm(%s)", cipher_name) >=
CRYPTO_MAX_ALG_NAME)
return -ENAMETOOLONG;
return crypto_gcm_create_common(tmpl, tb, full_name,
ctr_name, "ghash");
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 106 | 97.25% | 2 | 50.00% |
Huang Ying | 2 | 1.83% | 1 | 25.00% |
Julia Lawall | 1 | 0.92% | 1 | 25.00% |
Total | 109 | 100.00% | 4 | 100.00% |
static struct crypto_template crypto_gcm_tmpl = {
.name = "gcm",
.create = crypto_gcm_create,
.module = THIS_MODULE,
};
static int crypto_gcm_base_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
const char *ctr_name;
const char *ghash_name;
char full_name[CRYPTO_MAX_ALG_NAME];
ctr_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(ctr_name))
return PTR_ERR(ctr_name);
ghash_name = crypto_attr_alg_name(tb[2]);
if (IS_ERR(ghash_name))
return PTR_ERR(ghash_name);
if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "gcm_base(%s,%s)",
ctr_name, ghash_name) >= CRYPTO_MAX_ALG_NAME)
return -ENAMETOOLONG;
return crypto_gcm_create_common(tmpl, tb, full_name,
ctr_name, ghash_name);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 81 | 71.05% | 2 | 50.00% |
Huang Ying | 31 | 27.19% | 1 | 25.00% |
Julia Lawall | 2 | 1.75% | 1 | 25.00% |
Total | 114 | 100.00% | 4 | 100.00% |
static struct crypto_template crypto_gcm_base_tmpl = {
.name = "gcm_base",
.create = crypto_gcm_base_create,
.module = THIS_MODULE,
};
static int crypto_rfc4106_setkey(struct crypto_aead *parent, const u8 *key,
unsigned int keylen)
{
struct crypto_rfc4106_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_aead *child = ctx->child;
int err;
if (keylen < 4)
return -EINVAL;
keylen -= 4;
memcpy(ctx->nonce, key + keylen, 4);
crypto_aead_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(child, crypto_aead_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_aead_setkey(child, key, keylen);
crypto_aead_set_flags(parent, crypto_aead_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 106 | 92.98% | 2 | 66.67% |
Mikko Herranen | 8 | 7.02% | 1 | 33.33% |
Total | 114 | 100.00% | 3 | 100.00% |
static int crypto_rfc4106_setauthsize(struct crypto_aead *parent,
unsigned int authsize)
{
struct crypto_rfc4106_ctx *ctx = crypto_aead_ctx(parent);
switch (authsize) {
case 8:
case 12:
case 16:
break;
default:
return -EINVAL;
}
return crypto_aead_setauthsize(ctx->child, authsize);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 49 | 87.50% | 2 | 66.67% |
Mikko Herranen | 7 | 12.50% | 1 | 33.33% |
Total | 56 | 100.00% | 3 | 100.00% |
static struct aead_request *crypto_rfc4106_crypt(struct aead_request *req)
{
struct crypto_rfc4106_req_ctx *rctx = aead_request_ctx(req);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_rfc4106_ctx *ctx = crypto_aead_ctx(aead);
struct aead_request *subreq = &rctx->subreq;
struct crypto_aead *child = ctx->child;
struct scatterlist *sg;
u8 *iv = PTR_ALIGN((u8 *)(subreq + 1) + crypto_aead_reqsize(child),
crypto_aead_alignmask(child) + 1);
scatterwalk_map_and_copy(iv + 12, req->src, 0, req->assoclen - 8, 0);
memcpy(iv, ctx->nonce, 4);
memcpy(iv + 4, req->iv, 8);
sg_init_table(rctx->src, 3);
sg_set_buf(rctx->src, iv + 12, req->assoclen - 8);
sg = scatterwalk_ffwd(rctx->src + 1, req->src, req->assoclen);
if (sg != rctx->src + 1)
sg_chain(rctx->src, 2, sg);
if (req->src != req->dst) {
sg_init_table(rctx->dst, 3);
sg_set_buf(rctx->dst, iv + 12, req->assoclen - 8);
sg = scatterwalk_ffwd(rctx->dst + 1, req->dst, req->assoclen);
if (sg != rctx->dst + 1)
sg_chain(rctx->dst, 2, sg);
}
aead_request_set_tfm(subreq, child);
aead_request_set_callback(subreq, req->base.flags, req->base.complete,
req->base.data);
aead_request_set_crypt(subreq, rctx->src,
req->src == req->dst ? rctx->src : rctx->dst,
req->cryptlen, iv);
aead_request_set_ad(subreq, req->assoclen - 8);
return subreq;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 356 | 98.89% | 2 | 66.67% |
Mikko Herranen | 4 | 1.11% | 1 | 33.33% |
Total | 360 | 100.00% | 3 | 100.00% |
static int crypto_rfc4106_encrypt(struct aead_request *req)
{
if (req->assoclen != 16 && req->assoclen != 20)
return -EINVAL;
req = crypto_rfc4106_crypt(req);
return crypto_aead_encrypt(req);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 42 | 100.00% | 2 | 100.00% |
Total | 42 | 100.00% | 2 | 100.00% |
static int crypto_rfc4106_decrypt(struct aead_request *req)
{
if (req->assoclen != 16 && req->assoclen != 20)
return -EINVAL;
req = crypto_rfc4106_crypt(req);
return crypto_aead_decrypt(req);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 42 | 100.00% | 2 | 100.00% |
Total | 42 | 100.00% | 2 | 100.00% |
static int crypto_rfc4106_init_tfm(struct crypto_aead *tfm)
{
struct aead_instance *inst = aead_alg_instance(tfm);
struct crypto_aead_spawn *spawn = aead_instance_ctx(inst);
struct crypto_rfc4106_ctx *ctx = crypto_aead_ctx(tfm);
struct crypto_aead *aead;
unsigned long align;
aead = crypto_spawn_aead(spawn);
if (IS_ERR(aead))
return PTR_ERR(aead);
ctx->child = aead;
align = crypto_aead_alignmask(aead);
align &= ~(crypto_tfm_ctx_alignment() - 1);
crypto_aead_set_reqsize(
tfm,
sizeof(struct crypto_rfc4106_req_ctx) +
ALIGN(crypto_aead_reqsize(aead), crypto_tfm_ctx_alignment()) +
align + 24);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 122 | 100.00% | 4 | 100.00% |
Total | 122 | 100.00% | 4 | 100.00% |
static void crypto_rfc4106_exit_tfm(struct crypto_aead *tfm)
{
struct crypto_rfc4106_ctx *ctx = crypto_aead_ctx(tfm);
crypto_free_aead(ctx->child);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 28 | 100.00% | 2 | 100.00% |
Total | 28 | 100.00% | 2 | 100.00% |
static void crypto_rfc4106_free(struct aead_instance *inst)
{
crypto_drop_aead(aead_instance_ctx(inst));
kfree(inst);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 24 | 100.00% | 1 | 100.00% |
Total | 24 | 100.00% | 1 | 100.00% |
static int crypto_rfc4106_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct crypto_attr_type *algt;
struct aead_instance *inst;
struct crypto_aead_spawn *spawn;
struct aead_alg *alg;
const char *ccm_name;
int err;
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
ccm_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(ccm_name))
return PTR_ERR(ccm_name);
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)
return -ENOMEM;
spawn = aead_instance_ctx(inst);
crypto_set_aead_spawn(spawn, aead_crypto_instance(inst));
err = crypto_grab_aead(spawn, ccm_name, 0,
crypto_requires_sync(algt->type, algt->mask));
if (err)
goto out_free_inst;
alg = crypto_spawn_aead_alg(spawn);
err = -EINVAL;
/* Underlying IV size must be 12. */
if (crypto_aead_alg_ivsize(alg) != 12)
goto out_drop_alg;
/* Not a stream cipher? */
if (alg->base.cra_blocksize != 1)
goto out_drop_alg;
err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"rfc4106(%s)", alg->base.cra_name) >=
CRYPTO_MAX_ALG_NAME ||
snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"rfc4106(%s)", alg->base.cra_driver_name) >=
CRYPTO_MAX_ALG_NAME)
goto out_drop_alg;
inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = alg->base.cra_priority;
inst->alg.base.cra_blocksize = 1;
inst->alg.base.cra_alignmask = alg->base.cra_alignmask;
inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc4106_ctx);
inst->alg.ivsize = 8;
inst->alg.chunksize = crypto_aead_alg_chunksize(alg);
inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);
inst->alg.init = crypto_rfc4106_init_tfm;
inst->alg.exit = crypto_rfc4106_exit_tfm;
inst->alg.setkey = crypto_rfc4106_setkey;
inst->alg.setauthsize = crypto_rfc4106_setauthsize;
inst->alg.encrypt = crypto_rfc4106_encrypt;
inst->alg.decrypt = crypto_rfc4106_decrypt;
inst->free = crypto_rfc4106_free;
err = aead_register_instance(tmpl, inst);
if (err)
goto out_drop_alg;
out:
return err;
out_drop_alg:
crypto_drop_aead(spawn);
out_free_inst:
kfree(inst);
goto out;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 463 | 99.57% | 4 | 80.00% |
Julia Lawall | 2 | 0.43% | 1 | 20.00% |
Total | 465 | 100.00% | 5 | 100.00% |
static struct crypto_template crypto_rfc4106_tmpl = {
.name = "rfc4106",
.create = crypto_rfc4106_create,
.module = THIS_MODULE,
};
static int crypto_rfc4543_setkey(struct crypto_aead *parent, const u8 *key,
unsigned int keylen)
{
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_aead *child = ctx->child;
int err;
if (keylen < 4)
return -EINVAL;
keylen -= 4;
memcpy(ctx->nonce, key + keylen, 4);
crypto_aead_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(child, crypto_aead_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_aead_setkey(child, key, keylen);
crypto_aead_set_flags(parent, crypto_aead_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Tobias Brunner | 86 | 75.44% | 1 | 33.33% |
Herbert Xu | 16 | 14.04% | 1 | 33.33% |
Huang Ying | 12 | 10.53% | 1 | 33.33% |
Total | 114 | 100.00% | 3 | 100.00% |
static int crypto_rfc4543_setauthsize(struct crypto_aead *parent,
unsigned int authsize)
{
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(parent);
if (authsize != 16)
return -EINVAL;
return crypto_aead_setauthsize(ctx->child, authsize);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 23 | 51.11% | 2 | 50.00% |
Tobias Brunner | 16 | 35.56% | 1 | 25.00% |
Jussi Kivilinna | 6 | 13.33% | 1 | 25.00% |
Total | 45 | 100.00% | 4 | 100.00% |
static int crypto_rfc4543_crypt(struct aead_request *req, bool enc)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(aead);
struct crypto_rfc4543_req_ctx *rctx = aead_request_ctx(req);
struct aead_request *subreq = &rctx->subreq;
unsigned int authsize = crypto_aead_authsize(aead);
u8 *iv = PTR_ALIGN((u8 *)(rctx + 1) + crypto_aead_reqsize(ctx->child),
crypto_aead_alignmask(ctx->child) + 1);
int err;
if (req->src != req->dst) {
err = crypto_rfc4543_copy_src_to_dst(req, enc);
if (err)
return err;
}
memcpy(iv, ctx->nonce, 4);
memcpy(iv + 4, req->iv, 8);
aead_request_set_tfm(subreq, ctx->child);
aead_request_set_callback(subreq, req->base.flags,
req->base.complete, req->base.data);
aead_request_set_crypt(subreq, req->src, req->dst,
enc ? 0 : authsize, iv);
aead_request_set_ad(subreq, req->assoclen + req->cryptlen -
subreq->cryptlen);
return enc ? crypto_aead_encrypt(subreq) : crypto_aead_decrypt(subreq);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Tobias Brunner | 120 | 51.28% | 1 | 20.00% |
Herbert Xu | 94 | 40.17% | 1 | 20.00% |
Jussi Kivilinna | 19 | 8.12% | 2 | 40.00% |
Steffen Klassert | 1 | 0.43% | 1 | 20.00% |
Total | 234 | 100.00% | 5 | 100.00% |
static int crypto_rfc4543_copy_src_to_dst(struct aead_request *req, bool enc)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(aead);
unsigned int authsize = crypto_aead_authsize(aead);
unsigned int nbytes = req->assoclen + req->cryptlen -
(enc ? 0 : authsize);
SKCIPHER_REQUEST_ON_STACK(nreq, ctx->null);
skcipher_request_set_tfm(nreq, ctx->null);
skcipher_request_set_callback(nreq, req->base.flags, NULL, NULL);
skcipher_request_set_crypt(nreq, req->src, req->dst, nbytes, NULL);
return crypto_skcipher_encrypt(nreq);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 59 | 49.58% | 2 | 50.00% |
Jussi Kivilinna | 48 | 40.34% | 1 | 25.00% |
Tobias Brunner | 12 | 10.08% | 1 | 25.00% |
Total | 119 | 100.00% | 4 | 100.00% |
static int crypto_rfc4543_encrypt(struct aead_request *req)
{
return crypto_rfc4543_crypt(req, true);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Tobias Brunner | 9 | 47.37% | 1 | 33.33% |
Jussi Kivilinna | 6 | 31.58% | 1 | 33.33% |
Herbert Xu | 4 | 21.05% | 1 | 33.33% |
Total | 19 | 100.00% | 3 | 100.00% |
static int crypto_rfc4543_decrypt(struct aead_request *req)
{
return crypto_rfc4543_crypt(req, false);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 10 | 52.63% | 1 | 33.33% |
Tobias Brunner | 8 | 42.11% | 1 | 33.33% |
Jussi Kivilinna | 1 | 5.26% | 1 | 33.33% |
Total | 19 | 100.00% | 3 | 100.00% |
static int crypto_rfc4543_init_tfm(struct crypto_aead *tfm)
{
struct aead_instance *inst = aead_alg_instance(tfm);
struct crypto_rfc4543_instance_ctx *ictx = aead_instance_ctx(inst);
struct crypto_aead_spawn *spawn = &ictx->aead;
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(tfm);
struct crypto_aead *aead;
struct crypto_skcipher *null;
unsigned long align;
int err = 0;
aead = crypto_spawn_aead(spawn);
if (IS_ERR(aead))
return PTR_ERR(aead);
null = crypto_get_default_null_skcipher2();
err = PTR_ERR(null);
if (IS_ERR(null))
goto err_free_aead;
ctx->child = aead;
ctx->null = null;
align = crypto_aead_alignmask(aead);
align &= ~(crypto_tfm_ctx_alignment() - 1);
crypto_aead_set_reqsize(
tfm,
sizeof(struct crypto_rfc4543_req_ctx) +
ALIGN(crypto_aead_reqsize(aead), crypto_tfm_ctx_alignment()) +
align + 12);
return 0;
err_free_aead:
crypto_free_aead(aead);
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Tobias Brunner | 108 | 60.00% | 1 | 16.67% |
Jussi Kivilinna | 57 | 31.67% | 1 | 16.67% |
Herbert Xu | 15 | 8.33% | 4 | 66.67% |
Total | 180 | 100.00% | 6 | 100.00% |
static void crypto_rfc4543_exit_tfm(struct crypto_aead *tfm)
{
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(tfm);
crypto_free_aead(ctx->child);
crypto_put_default_null_skcipher2();
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Tobias Brunner | 26 | 83.87% | 1 | 20.00% |
Herbert Xu | 4 | 12.90% | 3 | 60.00% |
Jussi Kivilinna | 1 | 3.23% | 1 | 20.00% |
Total | 31 | 100.00% | 5 | 100.00% |
static void crypto_rfc4543_free(struct aead_instance *inst)
{
struct crypto_rfc4543_instance_ctx *ctx = aead_instance_ctx(inst);
crypto_drop_aead(&ctx->aead);
kfree(inst);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 34 | 100.00% | 1 | 100.00% |
Total | 34 | 100.00% | 1 | 100.00% |
static int crypto_rfc4543_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct crypto_attr_type *algt;
struct aead_instance *inst;
struct crypto_aead_spawn *spawn;
struct aead_alg *alg;
struct crypto_rfc4543_instance_ctx *ctx;
const char *ccm_name;
int err;
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
ccm_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(ccm_name))
return PTR_ERR(ccm_name);
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
if (!inst)
return -ENOMEM;
ctx = aead_instance_ctx(inst);
spawn = &ctx->aead;
crypto_set_aead_spawn(spawn, aead_crypto_instance(inst));
err = crypto_grab_aead(spawn, ccm_name, 0,
crypto_requires_sync(algt->type, algt->mask));
if (err)
goto out_free_inst;
alg = crypto_spawn_aead_alg(spawn);
err = -EINVAL;
/* Underlying IV size must be 12. */
if (crypto_aead_alg_ivsize(alg) != 12)
goto out_drop_alg;
/* Not a stream cipher? */
if (alg->base.cra_blocksize != 1)
goto out_drop_alg;
err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"rfc4543(%s)", alg->base.cra_name) >=
CRYPTO_MAX_ALG_NAME ||
snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"rfc4543(%s)", alg->base.cra_driver_name) >=
CRYPTO_MAX_ALG_NAME)
goto out_drop_alg;
inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = alg->base.cra_priority;
inst->alg.base.cra_blocksize = 1;
inst->alg.base.cra_alignmask = alg->base.cra_alignmask;
inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc4543_ctx);
inst->alg.ivsize = 8;
inst->alg.chunksize = crypto_aead_alg_chunksize(alg);
inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);
inst->alg.init = crypto_rfc4543_init_tfm;
inst->alg.exit = crypto_rfc4543_exit_tfm;
inst->alg.setkey = crypto_rfc4543_setkey;
inst->alg.setauthsize = crypto_rfc4543_setauthsize;
inst->alg.encrypt = crypto_rfc4543_encrypt;
inst->alg.decrypt = crypto_rfc4543_decrypt;
inst->free = crypto_rfc4543_free,
err = aead_register_instance(tmpl, inst);
if (err)
goto out_drop_alg;
out:
return err;
out_drop_alg:
crypto_drop_aead(spawn);
out_free_inst:
kfree(inst);
goto out;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Tobias Brunner | 370 | 77.57% | 1 | 14.29% |
Herbert Xu | 91 | 19.08% | 4 | 57.14% |
Jussi Kivilinna | 14 | 2.94% | 1 | 14.29% |
Julia Lawall | 2 | 0.42% | 1 | 14.29% |
Total | 477 | 100.00% | 7 | 100.00% |
static struct crypto_template crypto_rfc4543_tmpl = {
.name = "rfc4543",
.create = crypto_rfc4543_create,
.module = THIS_MODULE,
};
static int __init crypto_gcm_module_init(void)
{
int err;
gcm_zeroes = kzalloc(sizeof(*gcm_zeroes), GFP_KERNEL);
if (!gcm_zeroes)
return -ENOMEM;
sg_init_one(&gcm_zeroes->sg, gcm_zeroes->buf, sizeof(gcm_zeroes->buf));
err = crypto_register_template(&crypto_gcm_base_tmpl);
if (err)
goto out;
err = crypto_register_template(&crypto_gcm_tmpl);
if (err)
goto out_undo_base;
err = crypto_register_template(&crypto_rfc4106_tmpl);
if (err)
goto out_undo_gcm;
err = crypto_register_template(&crypto_rfc4543_tmpl);
if (err)
goto out_undo_rfc4106;
return 0;
out_undo_rfc4106:
crypto_unregister_template(&crypto_rfc4106_tmpl);
out_undo_gcm:
crypto_unregister_template(&crypto_gcm_tmpl);
out_undo_base:
crypto_unregister_template(&crypto_gcm_base_tmpl);
out:
kfree(gcm_zeroes);
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Tobias Brunner | 126 | 84.00% | 1 | 50.00% |
Herbert Xu | 24 | 16.00% | 1 | 50.00% |
Total | 150 | 100.00% | 2 | 100.00% |
static void __exit crypto_gcm_module_exit(void)
{
kfree(gcm_zeroes);
crypto_unregister_template(&crypto_rfc4543_tmpl);
crypto_unregister_template(&crypto_rfc4106_tmpl);
crypto_unregister_template(&crypto_gcm_tmpl);
crypto_unregister_template(&crypto_gcm_base_tmpl);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 19 | 50.00% | 1 | 33.33% |
Tobias Brunner | 15 | 39.47% | 1 | 33.33% |
Huang Ying | 4 | 10.53% | 1 | 33.33% |
Total | 38 | 100.00% | 3 | 100.00% |
module_init(crypto_gcm_module_init);
module_exit(crypto_gcm_module_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Galois/Counter Mode");
MODULE_AUTHOR("Mikko Herranen <mh1@iki.fi>");
MODULE_ALIAS_CRYPTO("gcm_base");
MODULE_ALIAS_CRYPTO("rfc4106");
MODULE_ALIAS_CRYPTO("rfc4543");
MODULE_ALIAS_CRYPTO("gcm");
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Herbert Xu | 3532 | 52.51% | 15 | 46.88% |
Huang Ying | 1412 | 20.99% | 2 | 6.25% |
Tobias Brunner | 945 | 14.05% | 1 | 3.12% |
Mikko Herranen | 640 | 9.52% | 1 | 3.12% |
Jussi Kivilinna | 165 | 2.45% | 3 | 9.38% |
Julia Lawall | 9 | 0.13% | 1 | 3.12% |
Kees Cook | 8 | 0.12% | 2 | 6.25% |
Wei Yongjun | 5 | 0.07% | 1 | 3.12% |
Mark D Rustad | 4 | 0.06% | 1 | 3.12% |
Eric Biggers | 2 | 0.03% | 2 | 6.25% |
Dan J Williams | 2 | 0.03% | 1 | 3.12% |
Ondrej Mosnáček | 1 | 0.01% | 1 | 3.12% |
Steffen Klassert | 1 | 0.01% | 1 | 3.12% |
Total | 6726 | 100.00% | 32 | 100.00% |
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