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TOMOYO Linux Cross Reference
Linux/crypto/pcrypt.c

Version: ~ [ linux-6.11.5 ] ~ [ linux-6.10.14 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.58 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.114 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.169 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.228 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.284 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.322 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /crypto/pcrypt.c (Version linux-6.11.5) and /crypto/pcrypt.c (Version linux-5.9.16)


  1 // SPDX-License-Identifier: GPL-2.0-only            1 // SPDX-License-Identifier: GPL-2.0-only
  2 /*                                                  2 /*
  3  * pcrypt - Parallel crypto wrapper.                3  * pcrypt - Parallel crypto wrapper.
  4  *                                                  4  *
  5  * Copyright (C) 2009 secunet Security Network      5  * Copyright (C) 2009 secunet Security Networks AG
  6  * Copyright (C) 2009 Steffen Klassert <steffe      6  * Copyright (C) 2009 Steffen Klassert <steffen.klassert@secunet.com>
  7  */                                                 7  */
  8                                                     8 
  9 #include <crypto/algapi.h>                          9 #include <crypto/algapi.h>
 10 #include <crypto/internal/aead.h>                  10 #include <crypto/internal/aead.h>
 11 #include <linux/atomic.h>                          11 #include <linux/atomic.h>
 12 #include <linux/err.h>                             12 #include <linux/err.h>
 13 #include <linux/init.h>                            13 #include <linux/init.h>
 14 #include <linux/module.h>                          14 #include <linux/module.h>
 15 #include <linux/slab.h>                            15 #include <linux/slab.h>
 16 #include <linux/kobject.h>                         16 #include <linux/kobject.h>
 17 #include <linux/cpu.h>                             17 #include <linux/cpu.h>
 18 #include <crypto/pcrypt.h>                         18 #include <crypto/pcrypt.h>
 19                                                    19 
 20 static struct padata_instance *pencrypt;           20 static struct padata_instance *pencrypt;
 21 static struct padata_instance *pdecrypt;           21 static struct padata_instance *pdecrypt;
 22 static struct kset           *pcrypt_kset;         22 static struct kset           *pcrypt_kset;
 23                                                    23 
 24 struct pcrypt_instance_ctx {                       24 struct pcrypt_instance_ctx {
 25         struct crypto_aead_spawn spawn;            25         struct crypto_aead_spawn spawn;
 26         struct padata_shell *psenc;                26         struct padata_shell *psenc;
 27         struct padata_shell *psdec;                27         struct padata_shell *psdec;
 28         atomic_t tfm_count;                        28         atomic_t tfm_count;
 29 };                                                 29 };
 30                                                    30 
 31 struct pcrypt_aead_ctx {                           31 struct pcrypt_aead_ctx {
 32         struct crypto_aead *child;                 32         struct crypto_aead *child;
 33         unsigned int cb_cpu;                       33         unsigned int cb_cpu;
 34 };                                                 34 };
 35                                                    35 
 36 static inline struct pcrypt_instance_ctx *pcry     36 static inline struct pcrypt_instance_ctx *pcrypt_tfm_ictx(
 37         struct crypto_aead *tfm)                   37         struct crypto_aead *tfm)
 38 {                                                  38 {
 39         return aead_instance_ctx(aead_alg_inst     39         return aead_instance_ctx(aead_alg_instance(tfm));
 40 }                                                  40 }
 41                                                    41 
 42 static int pcrypt_aead_setkey(struct crypto_ae     42 static int pcrypt_aead_setkey(struct crypto_aead *parent,
 43                               const u8 *key, u     43                               const u8 *key, unsigned int keylen)
 44 {                                                  44 {
 45         struct pcrypt_aead_ctx *ctx = crypto_a     45         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent);
 46                                                    46 
 47         return crypto_aead_setkey(ctx->child,      47         return crypto_aead_setkey(ctx->child, key, keylen);
 48 }                                                  48 }
 49                                                    49 
 50 static int pcrypt_aead_setauthsize(struct cryp     50 static int pcrypt_aead_setauthsize(struct crypto_aead *parent,
 51                                    unsigned in     51                                    unsigned int authsize)
 52 {                                                  52 {
 53         struct pcrypt_aead_ctx *ctx = crypto_a     53         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent);
 54                                                    54 
 55         return crypto_aead_setauthsize(ctx->ch     55         return crypto_aead_setauthsize(ctx->child, authsize);
 56 }                                                  56 }
 57                                                    57 
 58 static void pcrypt_aead_serial(struct padata_p     58 static void pcrypt_aead_serial(struct padata_priv *padata)
 59 {                                                  59 {
 60         struct pcrypt_request *preq = pcrypt_p     60         struct pcrypt_request *preq = pcrypt_padata_request(padata);
 61         struct aead_request *req = pcrypt_requ     61         struct aead_request *req = pcrypt_request_ctx(preq);
 62                                                    62 
 63         aead_request_complete(req->base.data,      63         aead_request_complete(req->base.data, padata->info);
 64 }                                                  64 }
 65                                                    65 
 66 static void pcrypt_aead_done(void *data, int e !!  66 static void pcrypt_aead_done(struct crypto_async_request *areq, int err)
 67 {                                                  67 {
 68         struct aead_request *req = data;       !!  68         struct aead_request *req = areq->data;
 69         struct pcrypt_request *preq = aead_req     69         struct pcrypt_request *preq = aead_request_ctx(req);
 70         struct padata_priv *padata = pcrypt_re     70         struct padata_priv *padata = pcrypt_request_padata(preq);
 71                                                    71 
 72         padata->info = err;                        72         padata->info = err;
 73                                                    73 
 74         padata_do_serial(padata);                  74         padata_do_serial(padata);
 75 }                                                  75 }
 76                                                    76 
 77 static void pcrypt_aead_enc(struct padata_priv     77 static void pcrypt_aead_enc(struct padata_priv *padata)
 78 {                                                  78 {
 79         struct pcrypt_request *preq = pcrypt_p     79         struct pcrypt_request *preq = pcrypt_padata_request(padata);
 80         struct aead_request *req = pcrypt_requ     80         struct aead_request *req = pcrypt_request_ctx(preq);
 81         int ret;                               << 
 82                                                    81 
 83         ret = crypto_aead_encrypt(req);        !!  82         padata->info = crypto_aead_encrypt(req);
 84                                                    83 
 85         if (ret == -EINPROGRESS)               !!  84         if (padata->info == -EINPROGRESS)
 86                 return;                            85                 return;
 87                                                    86 
 88         padata->info = ret;                    << 
 89         padata_do_serial(padata);                  87         padata_do_serial(padata);
 90 }                                                  88 }
 91                                                    89 
 92 static int pcrypt_aead_encrypt(struct aead_req     90 static int pcrypt_aead_encrypt(struct aead_request *req)
 93 {                                                  91 {
 94         int err;                                   92         int err;
 95         struct pcrypt_request *preq = aead_req     93         struct pcrypt_request *preq = aead_request_ctx(req);
 96         struct aead_request *creq = pcrypt_req     94         struct aead_request *creq = pcrypt_request_ctx(preq);
 97         struct padata_priv *padata = pcrypt_re     95         struct padata_priv *padata = pcrypt_request_padata(preq);
 98         struct crypto_aead *aead = crypto_aead     96         struct crypto_aead *aead = crypto_aead_reqtfm(req);
 99         struct pcrypt_aead_ctx *ctx = crypto_a     97         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
100         u32 flags = aead_request_flags(req);       98         u32 flags = aead_request_flags(req);
101         struct pcrypt_instance_ctx *ictx;          99         struct pcrypt_instance_ctx *ictx;
102                                                   100 
103         ictx = pcrypt_tfm_ictx(aead);             101         ictx = pcrypt_tfm_ictx(aead);
104                                                   102 
105         memset(padata, 0, sizeof(struct padata    103         memset(padata, 0, sizeof(struct padata_priv));
106                                                   104 
107         padata->parallel = pcrypt_aead_enc;       105         padata->parallel = pcrypt_aead_enc;
108         padata->serial = pcrypt_aead_serial;      106         padata->serial = pcrypt_aead_serial;
109                                                   107 
110         aead_request_set_tfm(creq, ctx->child)    108         aead_request_set_tfm(creq, ctx->child);
111         aead_request_set_callback(creq, flags     109         aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
112                                   pcrypt_aead_    110                                   pcrypt_aead_done, req);
113         aead_request_set_crypt(creq, req->src,    111         aead_request_set_crypt(creq, req->src, req->dst,
114                                req->cryptlen,     112                                req->cryptlen, req->iv);
115         aead_request_set_ad(creq, req->assocle    113         aead_request_set_ad(creq, req->assoclen);
116                                                   114 
117         err = padata_do_parallel(ictx->psenc,     115         err = padata_do_parallel(ictx->psenc, padata, &ctx->cb_cpu);
118         if (!err)                                 116         if (!err)
119                 return -EINPROGRESS;              117                 return -EINPROGRESS;
120         if (err == -EBUSY)                     << 
121                 return -EAGAIN;                << 
122                                                   118 
123         return err;                               119         return err;
124 }                                                 120 }
125                                                   121 
126 static void pcrypt_aead_dec(struct padata_priv    122 static void pcrypt_aead_dec(struct padata_priv *padata)
127 {                                                 123 {
128         struct pcrypt_request *preq = pcrypt_p    124         struct pcrypt_request *preq = pcrypt_padata_request(padata);
129         struct aead_request *req = pcrypt_requ    125         struct aead_request *req = pcrypt_request_ctx(preq);
130         int ret;                               << 
131                                                   126 
132         ret = crypto_aead_decrypt(req);        !! 127         padata->info = crypto_aead_decrypt(req);
133                                                   128 
134         if (ret == -EINPROGRESS)               !! 129         if (padata->info == -EINPROGRESS)
135                 return;                           130                 return;
136                                                   131 
137         padata->info = ret;                    << 
138         padata_do_serial(padata);                 132         padata_do_serial(padata);
139 }                                                 133 }
140                                                   134 
141 static int pcrypt_aead_decrypt(struct aead_req    135 static int pcrypt_aead_decrypt(struct aead_request *req)
142 {                                                 136 {
143         int err;                                  137         int err;
144         struct pcrypt_request *preq = aead_req    138         struct pcrypt_request *preq = aead_request_ctx(req);
145         struct aead_request *creq = pcrypt_req    139         struct aead_request *creq = pcrypt_request_ctx(preq);
146         struct padata_priv *padata = pcrypt_re    140         struct padata_priv *padata = pcrypt_request_padata(preq);
147         struct crypto_aead *aead = crypto_aead    141         struct crypto_aead *aead = crypto_aead_reqtfm(req);
148         struct pcrypt_aead_ctx *ctx = crypto_a    142         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
149         u32 flags = aead_request_flags(req);      143         u32 flags = aead_request_flags(req);
150         struct pcrypt_instance_ctx *ictx;         144         struct pcrypt_instance_ctx *ictx;
151                                                   145 
152         ictx = pcrypt_tfm_ictx(aead);             146         ictx = pcrypt_tfm_ictx(aead);
153                                                   147 
154         memset(padata, 0, sizeof(struct padata    148         memset(padata, 0, sizeof(struct padata_priv));
155                                                   149 
156         padata->parallel = pcrypt_aead_dec;       150         padata->parallel = pcrypt_aead_dec;
157         padata->serial = pcrypt_aead_serial;      151         padata->serial = pcrypt_aead_serial;
158                                                   152 
159         aead_request_set_tfm(creq, ctx->child)    153         aead_request_set_tfm(creq, ctx->child);
160         aead_request_set_callback(creq, flags     154         aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
161                                   pcrypt_aead_    155                                   pcrypt_aead_done, req);
162         aead_request_set_crypt(creq, req->src,    156         aead_request_set_crypt(creq, req->src, req->dst,
163                                req->cryptlen,     157                                req->cryptlen, req->iv);
164         aead_request_set_ad(creq, req->assocle    158         aead_request_set_ad(creq, req->assoclen);
165                                                   159 
166         err = padata_do_parallel(ictx->psdec,     160         err = padata_do_parallel(ictx->psdec, padata, &ctx->cb_cpu);
167         if (!err)                                 161         if (!err)
168                 return -EINPROGRESS;              162                 return -EINPROGRESS;
169         if (err == -EBUSY)                     << 
170                 return -EAGAIN;                << 
171                                                   163 
172         return err;                               164         return err;
173 }                                                 165 }
174                                                   166 
175 static int pcrypt_aead_init_tfm(struct crypto_    167 static int pcrypt_aead_init_tfm(struct crypto_aead *tfm)
176 {                                                 168 {
177         int cpu, cpu_index;                       169         int cpu, cpu_index;
178         struct aead_instance *inst = aead_alg_    170         struct aead_instance *inst = aead_alg_instance(tfm);
179         struct pcrypt_instance_ctx *ictx = aea    171         struct pcrypt_instance_ctx *ictx = aead_instance_ctx(inst);
180         struct pcrypt_aead_ctx *ctx = crypto_a    172         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(tfm);
181         struct crypto_aead *cipher;               173         struct crypto_aead *cipher;
182                                                   174 
183         cpu_index = (unsigned int)atomic_inc_r    175         cpu_index = (unsigned int)atomic_inc_return(&ictx->tfm_count) %
184                     cpumask_weight(cpu_online_    176                     cpumask_weight(cpu_online_mask);
185                                                   177 
186         ctx->cb_cpu = cpumask_first(cpu_online    178         ctx->cb_cpu = cpumask_first(cpu_online_mask);
187         for (cpu = 0; cpu < cpu_index; cpu++)     179         for (cpu = 0; cpu < cpu_index; cpu++)
188                 ctx->cb_cpu = cpumask_next(ctx    180                 ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask);
189                                                   181 
190         cipher = crypto_spawn_aead(&ictx->spaw    182         cipher = crypto_spawn_aead(&ictx->spawn);
191                                                   183 
192         if (IS_ERR(cipher))                       184         if (IS_ERR(cipher))
193                 return PTR_ERR(cipher);           185                 return PTR_ERR(cipher);
194                                                   186 
195         ctx->child = cipher;                      187         ctx->child = cipher;
196         crypto_aead_set_reqsize(tfm, sizeof(st    188         crypto_aead_set_reqsize(tfm, sizeof(struct pcrypt_request) +
197                                      sizeof(st    189                                      sizeof(struct aead_request) +
198                                      crypto_ae    190                                      crypto_aead_reqsize(cipher));
199                                                   191 
200         return 0;                                 192         return 0;
201 }                                                 193 }
202                                                   194 
203 static void pcrypt_aead_exit_tfm(struct crypto    195 static void pcrypt_aead_exit_tfm(struct crypto_aead *tfm)
204 {                                                 196 {
205         struct pcrypt_aead_ctx *ctx = crypto_a    197         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(tfm);
206                                                   198 
207         crypto_free_aead(ctx->child);             199         crypto_free_aead(ctx->child);
208 }                                                 200 }
209                                                   201 
210 static void pcrypt_free(struct aead_instance *    202 static void pcrypt_free(struct aead_instance *inst)
211 {                                                 203 {
212         struct pcrypt_instance_ctx *ctx = aead    204         struct pcrypt_instance_ctx *ctx = aead_instance_ctx(inst);
213                                                   205 
214         crypto_drop_aead(&ctx->spawn);            206         crypto_drop_aead(&ctx->spawn);
215         padata_free_shell(ctx->psdec);            207         padata_free_shell(ctx->psdec);
216         padata_free_shell(ctx->psenc);            208         padata_free_shell(ctx->psenc);
217         kfree(inst);                              209         kfree(inst);
218 }                                                 210 }
219                                                   211 
220 static int pcrypt_init_instance(struct crypto_    212 static int pcrypt_init_instance(struct crypto_instance *inst,
221                                 struct crypto_    213                                 struct crypto_alg *alg)
222 {                                                 214 {
223         if (snprintf(inst->alg.cra_driver_name    215         if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
224                      "pcrypt(%s)", alg->cra_dr    216                      "pcrypt(%s)", alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
225                 return -ENAMETOOLONG;             217                 return -ENAMETOOLONG;
226                                                   218 
227         memcpy(inst->alg.cra_name, alg->cra_na    219         memcpy(inst->alg.cra_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
228                                                   220 
229         inst->alg.cra_priority = alg->cra_prio    221         inst->alg.cra_priority = alg->cra_priority + 100;
230         inst->alg.cra_blocksize = alg->cra_blo    222         inst->alg.cra_blocksize = alg->cra_blocksize;
231         inst->alg.cra_alignmask = alg->cra_ali    223         inst->alg.cra_alignmask = alg->cra_alignmask;
232                                                   224 
233         return 0;                                 225         return 0;
234 }                                                 226 }
235                                                   227 
236 static int pcrypt_create_aead(struct crypto_te    228 static int pcrypt_create_aead(struct crypto_template *tmpl, struct rtattr **tb,
237                               struct crypto_at    229                               struct crypto_attr_type *algt)
238 {                                                 230 {
239         struct pcrypt_instance_ctx *ctx;          231         struct pcrypt_instance_ctx *ctx;
240         struct aead_instance *inst;               232         struct aead_instance *inst;
241         struct aead_alg *alg;                     233         struct aead_alg *alg;
242         u32 mask = crypto_algt_inherited_mask(    234         u32 mask = crypto_algt_inherited_mask(algt);
243         int err;                                  235         int err;
244                                                   236 
245         inst = kzalloc(sizeof(*inst) + sizeof(    237         inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
246         if (!inst)                                238         if (!inst)
247                 return -ENOMEM;                   239                 return -ENOMEM;
248                                                   240 
249         err = -ENOMEM;                            241         err = -ENOMEM;
250                                                   242 
251         ctx = aead_instance_ctx(inst);            243         ctx = aead_instance_ctx(inst);
252         ctx->psenc = padata_alloc_shell(pencry    244         ctx->psenc = padata_alloc_shell(pencrypt);
253         if (!ctx->psenc)                          245         if (!ctx->psenc)
254                 goto err_free_inst;               246                 goto err_free_inst;
255                                                   247 
256         ctx->psdec = padata_alloc_shell(pdecry    248         ctx->psdec = padata_alloc_shell(pdecrypt);
257         if (!ctx->psdec)                          249         if (!ctx->psdec)
258                 goto err_free_inst;               250                 goto err_free_inst;
259                                                   251 
260         err = crypto_grab_aead(&ctx->spawn, ae    252         err = crypto_grab_aead(&ctx->spawn, aead_crypto_instance(inst),
261                                crypto_attr_alg    253                                crypto_attr_alg_name(tb[1]), 0, mask);
262         if (err)                                  254         if (err)
263                 goto err_free_inst;               255                 goto err_free_inst;
264                                                   256 
265         alg = crypto_spawn_aead_alg(&ctx->spaw    257         alg = crypto_spawn_aead_alg(&ctx->spawn);
266         err = pcrypt_init_instance(aead_crypto    258         err = pcrypt_init_instance(aead_crypto_instance(inst), &alg->base);
267         if (err)                                  259         if (err)
268                 goto err_free_inst;               260                 goto err_free_inst;
269                                                   261 
270         inst->alg.base.cra_flags |= CRYPTO_ALG    262         inst->alg.base.cra_flags |= CRYPTO_ALG_ASYNC;
271                                                   263 
272         inst->alg.ivsize = crypto_aead_alg_ivs    264         inst->alg.ivsize = crypto_aead_alg_ivsize(alg);
273         inst->alg.maxauthsize = crypto_aead_al    265         inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);
274                                                   266 
275         inst->alg.base.cra_ctxsize = sizeof(st    267         inst->alg.base.cra_ctxsize = sizeof(struct pcrypt_aead_ctx);
276                                                   268 
277         inst->alg.init = pcrypt_aead_init_tfm;    269         inst->alg.init = pcrypt_aead_init_tfm;
278         inst->alg.exit = pcrypt_aead_exit_tfm;    270         inst->alg.exit = pcrypt_aead_exit_tfm;
279                                                   271 
280         inst->alg.setkey = pcrypt_aead_setkey;    272         inst->alg.setkey = pcrypt_aead_setkey;
281         inst->alg.setauthsize = pcrypt_aead_se    273         inst->alg.setauthsize = pcrypt_aead_setauthsize;
282         inst->alg.encrypt = pcrypt_aead_encryp    274         inst->alg.encrypt = pcrypt_aead_encrypt;
283         inst->alg.decrypt = pcrypt_aead_decryp    275         inst->alg.decrypt = pcrypt_aead_decrypt;
284                                                   276 
285         inst->free = pcrypt_free;                 277         inst->free = pcrypt_free;
286                                                   278 
287         err = aead_register_instance(tmpl, ins    279         err = aead_register_instance(tmpl, inst);
288         if (err) {                                280         if (err) {
289 err_free_inst:                                    281 err_free_inst:
290                 pcrypt_free(inst);                282                 pcrypt_free(inst);
291         }                                         283         }
292         return err;                               284         return err;
293 }                                                 285 }
294                                                   286 
295 static int pcrypt_create(struct crypto_templat    287 static int pcrypt_create(struct crypto_template *tmpl, struct rtattr **tb)
296 {                                                 288 {
297         struct crypto_attr_type *algt;            289         struct crypto_attr_type *algt;
298                                                   290 
299         algt = crypto_get_attr_type(tb);          291         algt = crypto_get_attr_type(tb);
300         if (IS_ERR(algt))                         292         if (IS_ERR(algt))
301                 return PTR_ERR(algt);             293                 return PTR_ERR(algt);
302                                                   294 
303         switch (algt->type & algt->mask & CRYP    295         switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
304         case CRYPTO_ALG_TYPE_AEAD:                296         case CRYPTO_ALG_TYPE_AEAD:
305                 return pcrypt_create_aead(tmpl    297                 return pcrypt_create_aead(tmpl, tb, algt);
306         }                                         298         }
307                                                   299 
308         return -EINVAL;                           300         return -EINVAL;
309 }                                                 301 }
310                                                   302 
311 static int pcrypt_sysfs_add(struct padata_inst    303 static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
312 {                                                 304 {
313         int ret;                                  305         int ret;
314                                                   306 
315         pinst->kobj.kset = pcrypt_kset;           307         pinst->kobj.kset = pcrypt_kset;
316         ret = kobject_add(&pinst->kobj, NULL,     308         ret = kobject_add(&pinst->kobj, NULL, "%s", name);
317         if (!ret)                                 309         if (!ret)
318                 kobject_uevent(&pinst->kobj, K    310                 kobject_uevent(&pinst->kobj, KOBJ_ADD);
319                                                   311 
320         return ret;                               312         return ret;
321 }                                                 313 }
322                                                   314 
323 static int pcrypt_init_padata(struct padata_in    315 static int pcrypt_init_padata(struct padata_instance **pinst, const char *name)
324 {                                                 316 {
325         int ret = -ENOMEM;                        317         int ret = -ENOMEM;
326                                                   318 
327         *pinst = padata_alloc(name);              319         *pinst = padata_alloc(name);
328         if (!*pinst)                              320         if (!*pinst)
329                 return ret;                       321                 return ret;
330                                                   322 
331         ret = pcrypt_sysfs_add(*pinst, name);     323         ret = pcrypt_sysfs_add(*pinst, name);
332         if (ret)                                  324         if (ret)
333                 padata_free(*pinst);              325                 padata_free(*pinst);
334                                                   326 
335         return ret;                               327         return ret;
336 }                                                 328 }
337                                                   329 
338 static struct crypto_template pcrypt_tmpl = {     330 static struct crypto_template pcrypt_tmpl = {
339         .name = "pcrypt",                         331         .name = "pcrypt",
340         .create = pcrypt_create,                  332         .create = pcrypt_create,
341         .module = THIS_MODULE,                    333         .module = THIS_MODULE,
342 };                                                334 };
343                                                   335 
344 static int __init pcrypt_init(void)               336 static int __init pcrypt_init(void)
345 {                                                 337 {
346         int err = -ENOMEM;                        338         int err = -ENOMEM;
347                                                   339 
348         pcrypt_kset = kset_create_and_add("pcr    340         pcrypt_kset = kset_create_and_add("pcrypt", NULL, kernel_kobj);
349         if (!pcrypt_kset)                         341         if (!pcrypt_kset)
350                 goto err;                         342                 goto err;
351                                                   343 
352         err = pcrypt_init_padata(&pencrypt, "p    344         err = pcrypt_init_padata(&pencrypt, "pencrypt");
353         if (err)                                  345         if (err)
354                 goto err_unreg_kset;              346                 goto err_unreg_kset;
355                                                   347 
356         err = pcrypt_init_padata(&pdecrypt, "p    348         err = pcrypt_init_padata(&pdecrypt, "pdecrypt");
357         if (err)                                  349         if (err)
358                 goto err_deinit_pencrypt;         350                 goto err_deinit_pencrypt;
359                                                   351 
360         return crypto_register_template(&pcryp    352         return crypto_register_template(&pcrypt_tmpl);
361                                                   353 
362 err_deinit_pencrypt:                              354 err_deinit_pencrypt:
363         padata_free(pencrypt);                    355         padata_free(pencrypt);
364 err_unreg_kset:                                   356 err_unreg_kset:
365         kset_unregister(pcrypt_kset);             357         kset_unregister(pcrypt_kset);
366 err:                                              358 err:
367         return err;                               359         return err;
368 }                                                 360 }
369                                                   361 
370 static void __exit pcrypt_exit(void)              362 static void __exit pcrypt_exit(void)
371 {                                                 363 {
372         crypto_unregister_template(&pcrypt_tmp    364         crypto_unregister_template(&pcrypt_tmpl);
373                                                   365 
374         padata_free(pencrypt);                    366         padata_free(pencrypt);
375         padata_free(pdecrypt);                    367         padata_free(pdecrypt);
376                                                   368 
377         kset_unregister(pcrypt_kset);             369         kset_unregister(pcrypt_kset);
378 }                                                 370 }
379                                                   371 
380 subsys_initcall(pcrypt_init);                     372 subsys_initcall(pcrypt_init);
381 module_exit(pcrypt_exit);                         373 module_exit(pcrypt_exit);
382                                                   374 
383 MODULE_LICENSE("GPL");                            375 MODULE_LICENSE("GPL");
384 MODULE_AUTHOR("Steffen Klassert <steffen.klass    376 MODULE_AUTHOR("Steffen Klassert <steffen.klassert@secunet.com>");
385 MODULE_DESCRIPTION("Parallel crypto wrapper");    377 MODULE_DESCRIPTION("Parallel crypto wrapper");
386 MODULE_ALIAS_CRYPTO("pcrypt");                    378 MODULE_ALIAS_CRYPTO("pcrypt");
387                                                   379 

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