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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-5.4.284)


  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/notifier.h>
 16 #include <linux/kobject.h>                         17 #include <linux/kobject.h>
 17 #include <linux/cpu.h>                             18 #include <linux/cpu.h>
 18 #include <crypto/pcrypt.h>                         19 #include <crypto/pcrypt.h>
 19                                                    20 
 20 static struct padata_instance *pencrypt;           21 static struct padata_instance *pencrypt;
 21 static struct padata_instance *pdecrypt;           22 static struct padata_instance *pdecrypt;
 22 static struct kset           *pcrypt_kset;         23 static struct kset           *pcrypt_kset;
 23                                                    24 
 24 struct pcrypt_instance_ctx {                       25 struct pcrypt_instance_ctx {
 25         struct crypto_aead_spawn spawn;            26         struct crypto_aead_spawn spawn;
 26         struct padata_shell *psenc;                27         struct padata_shell *psenc;
 27         struct padata_shell *psdec;                28         struct padata_shell *psdec;
 28         atomic_t tfm_count;                        29         atomic_t tfm_count;
 29 };                                                 30 };
 30                                                    31 
 31 struct pcrypt_aead_ctx {                           32 struct pcrypt_aead_ctx {
 32         struct crypto_aead *child;                 33         struct crypto_aead *child;
 33         unsigned int cb_cpu;                       34         unsigned int cb_cpu;
 34 };                                                 35 };
 35                                                    36 
 36 static inline struct pcrypt_instance_ctx *pcry     37 static inline struct pcrypt_instance_ctx *pcrypt_tfm_ictx(
 37         struct crypto_aead *tfm)                   38         struct crypto_aead *tfm)
 38 {                                                  39 {
 39         return aead_instance_ctx(aead_alg_inst     40         return aead_instance_ctx(aead_alg_instance(tfm));
 40 }                                                  41 }
 41                                                    42 
 42 static int pcrypt_aead_setkey(struct crypto_ae     43 static int pcrypt_aead_setkey(struct crypto_aead *parent,
 43                               const u8 *key, u     44                               const u8 *key, unsigned int keylen)
 44 {                                                  45 {
 45         struct pcrypt_aead_ctx *ctx = crypto_a     46         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent);
 46                                                    47 
 47         return crypto_aead_setkey(ctx->child,      48         return crypto_aead_setkey(ctx->child, key, keylen);
 48 }                                                  49 }
 49                                                    50 
 50 static int pcrypt_aead_setauthsize(struct cryp     51 static int pcrypt_aead_setauthsize(struct crypto_aead *parent,
 51                                    unsigned in     52                                    unsigned int authsize)
 52 {                                                  53 {
 53         struct pcrypt_aead_ctx *ctx = crypto_a     54         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent);
 54                                                    55 
 55         return crypto_aead_setauthsize(ctx->ch     56         return crypto_aead_setauthsize(ctx->child, authsize);
 56 }                                                  57 }
 57                                                    58 
 58 static void pcrypt_aead_serial(struct padata_p     59 static void pcrypt_aead_serial(struct padata_priv *padata)
 59 {                                                  60 {
 60         struct pcrypt_request *preq = pcrypt_p     61         struct pcrypt_request *preq = pcrypt_padata_request(padata);
 61         struct aead_request *req = pcrypt_requ     62         struct aead_request *req = pcrypt_request_ctx(preq);
 62                                                    63 
 63         aead_request_complete(req->base.data,      64         aead_request_complete(req->base.data, padata->info);
 64 }                                                  65 }
 65                                                    66 
 66 static void pcrypt_aead_done(void *data, int e !!  67 static void pcrypt_aead_done(struct crypto_async_request *areq, int err)
 67 {                                                  68 {
 68         struct aead_request *req = data;       !!  69         struct aead_request *req = areq->data;
 69         struct pcrypt_request *preq = aead_req     70         struct pcrypt_request *preq = aead_request_ctx(req);
 70         struct padata_priv *padata = pcrypt_re     71         struct padata_priv *padata = pcrypt_request_padata(preq);
 71                                                    72 
 72         padata->info = err;                        73         padata->info = err;
 73                                                    74 
 74         padata_do_serial(padata);                  75         padata_do_serial(padata);
 75 }                                                  76 }
 76                                                    77 
 77 static void pcrypt_aead_enc(struct padata_priv     78 static void pcrypt_aead_enc(struct padata_priv *padata)
 78 {                                                  79 {
 79         struct pcrypt_request *preq = pcrypt_p     80         struct pcrypt_request *preq = pcrypt_padata_request(padata);
 80         struct aead_request *req = pcrypt_requ     81         struct aead_request *req = pcrypt_request_ctx(preq);
 81         int ret;                                   82         int ret;
 82                                                    83 
 83         ret = crypto_aead_encrypt(req);            84         ret = crypto_aead_encrypt(req);
 84                                                    85 
 85         if (ret == -EINPROGRESS)                   86         if (ret == -EINPROGRESS)
 86                 return;                            87                 return;
 87                                                    88 
 88         padata->info = ret;                        89         padata->info = ret;
 89         padata_do_serial(padata);                  90         padata_do_serial(padata);
 90 }                                                  91 }
 91                                                    92 
 92 static int pcrypt_aead_encrypt(struct aead_req     93 static int pcrypt_aead_encrypt(struct aead_request *req)
 93 {                                                  94 {
 94         int err;                                   95         int err;
 95         struct pcrypt_request *preq = aead_req     96         struct pcrypt_request *preq = aead_request_ctx(req);
 96         struct aead_request *creq = pcrypt_req     97         struct aead_request *creq = pcrypt_request_ctx(preq);
 97         struct padata_priv *padata = pcrypt_re     98         struct padata_priv *padata = pcrypt_request_padata(preq);
 98         struct crypto_aead *aead = crypto_aead     99         struct crypto_aead *aead = crypto_aead_reqtfm(req);
 99         struct pcrypt_aead_ctx *ctx = crypto_a    100         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
100         u32 flags = aead_request_flags(req);      101         u32 flags = aead_request_flags(req);
101         struct pcrypt_instance_ctx *ictx;         102         struct pcrypt_instance_ctx *ictx;
102                                                   103 
103         ictx = pcrypt_tfm_ictx(aead);             104         ictx = pcrypt_tfm_ictx(aead);
104                                                   105 
105         memset(padata, 0, sizeof(struct padata    106         memset(padata, 0, sizeof(struct padata_priv));
106                                                   107 
107         padata->parallel = pcrypt_aead_enc;       108         padata->parallel = pcrypt_aead_enc;
108         padata->serial = pcrypt_aead_serial;      109         padata->serial = pcrypt_aead_serial;
109                                                   110 
110         aead_request_set_tfm(creq, ctx->child)    111         aead_request_set_tfm(creq, ctx->child);
111         aead_request_set_callback(creq, flags     112         aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
112                                   pcrypt_aead_    113                                   pcrypt_aead_done, req);
113         aead_request_set_crypt(creq, req->src,    114         aead_request_set_crypt(creq, req->src, req->dst,
114                                req->cryptlen,     115                                req->cryptlen, req->iv);
115         aead_request_set_ad(creq, req->assocle    116         aead_request_set_ad(creq, req->assoclen);
116                                                   117 
117         err = padata_do_parallel(ictx->psenc,     118         err = padata_do_parallel(ictx->psenc, padata, &ctx->cb_cpu);
118         if (!err)                                 119         if (!err)
119                 return -EINPROGRESS;              120                 return -EINPROGRESS;
120         if (err == -EBUSY)                        121         if (err == -EBUSY)
121                 return -EAGAIN;                   122                 return -EAGAIN;
122                                                   123 
123         return err;                               124         return err;
124 }                                                 125 }
125                                                   126 
126 static void pcrypt_aead_dec(struct padata_priv    127 static void pcrypt_aead_dec(struct padata_priv *padata)
127 {                                                 128 {
128         struct pcrypt_request *preq = pcrypt_p    129         struct pcrypt_request *preq = pcrypt_padata_request(padata);
129         struct aead_request *req = pcrypt_requ    130         struct aead_request *req = pcrypt_request_ctx(preq);
130         int ret;                                  131         int ret;
131                                                   132 
132         ret = crypto_aead_decrypt(req);           133         ret = crypto_aead_decrypt(req);
133                                                   134 
134         if (ret == -EINPROGRESS)                  135         if (ret == -EINPROGRESS)
135                 return;                           136                 return;
136                                                   137 
137         padata->info = ret;                       138         padata->info = ret;
138         padata_do_serial(padata);                 139         padata_do_serial(padata);
139 }                                                 140 }
140                                                   141 
141 static int pcrypt_aead_decrypt(struct aead_req    142 static int pcrypt_aead_decrypt(struct aead_request *req)
142 {                                                 143 {
143         int err;                                  144         int err;
144         struct pcrypt_request *preq = aead_req    145         struct pcrypt_request *preq = aead_request_ctx(req);
145         struct aead_request *creq = pcrypt_req    146         struct aead_request *creq = pcrypt_request_ctx(preq);
146         struct padata_priv *padata = pcrypt_re    147         struct padata_priv *padata = pcrypt_request_padata(preq);
147         struct crypto_aead *aead = crypto_aead    148         struct crypto_aead *aead = crypto_aead_reqtfm(req);
148         struct pcrypt_aead_ctx *ctx = crypto_a    149         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
149         u32 flags = aead_request_flags(req);      150         u32 flags = aead_request_flags(req);
150         struct pcrypt_instance_ctx *ictx;         151         struct pcrypt_instance_ctx *ictx;
151                                                   152 
152         ictx = pcrypt_tfm_ictx(aead);             153         ictx = pcrypt_tfm_ictx(aead);
153                                                   154 
154         memset(padata, 0, sizeof(struct padata    155         memset(padata, 0, sizeof(struct padata_priv));
155                                                   156 
156         padata->parallel = pcrypt_aead_dec;       157         padata->parallel = pcrypt_aead_dec;
157         padata->serial = pcrypt_aead_serial;      158         padata->serial = pcrypt_aead_serial;
158                                                   159 
159         aead_request_set_tfm(creq, ctx->child)    160         aead_request_set_tfm(creq, ctx->child);
160         aead_request_set_callback(creq, flags     161         aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
161                                   pcrypt_aead_    162                                   pcrypt_aead_done, req);
162         aead_request_set_crypt(creq, req->src,    163         aead_request_set_crypt(creq, req->src, req->dst,
163                                req->cryptlen,     164                                req->cryptlen, req->iv);
164         aead_request_set_ad(creq, req->assocle    165         aead_request_set_ad(creq, req->assoclen);
165                                                   166 
166         err = padata_do_parallel(ictx->psdec,     167         err = padata_do_parallel(ictx->psdec, padata, &ctx->cb_cpu);
167         if (!err)                                 168         if (!err)
168                 return -EINPROGRESS;              169                 return -EINPROGRESS;
169         if (err == -EBUSY)                        170         if (err == -EBUSY)
170                 return -EAGAIN;                   171                 return -EAGAIN;
171                                                   172 
172         return err;                               173         return err;
173 }                                                 174 }
174                                                   175 
175 static int pcrypt_aead_init_tfm(struct crypto_    176 static int pcrypt_aead_init_tfm(struct crypto_aead *tfm)
176 {                                                 177 {
177         int cpu, cpu_index;                       178         int cpu, cpu_index;
178         struct aead_instance *inst = aead_alg_    179         struct aead_instance *inst = aead_alg_instance(tfm);
179         struct pcrypt_instance_ctx *ictx = aea    180         struct pcrypt_instance_ctx *ictx = aead_instance_ctx(inst);
180         struct pcrypt_aead_ctx *ctx = crypto_a    181         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(tfm);
181         struct crypto_aead *cipher;               182         struct crypto_aead *cipher;
182                                                   183 
183         cpu_index = (unsigned int)atomic_inc_r    184         cpu_index = (unsigned int)atomic_inc_return(&ictx->tfm_count) %
184                     cpumask_weight(cpu_online_    185                     cpumask_weight(cpu_online_mask);
185                                                   186 
186         ctx->cb_cpu = cpumask_first(cpu_online    187         ctx->cb_cpu = cpumask_first(cpu_online_mask);
187         for (cpu = 0; cpu < cpu_index; cpu++)     188         for (cpu = 0; cpu < cpu_index; cpu++)
188                 ctx->cb_cpu = cpumask_next(ctx    189                 ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask);
189                                                   190 
190         cipher = crypto_spawn_aead(&ictx->spaw    191         cipher = crypto_spawn_aead(&ictx->spawn);
191                                                   192 
192         if (IS_ERR(cipher))                       193         if (IS_ERR(cipher))
193                 return PTR_ERR(cipher);           194                 return PTR_ERR(cipher);
194                                                   195 
195         ctx->child = cipher;                      196         ctx->child = cipher;
196         crypto_aead_set_reqsize(tfm, sizeof(st    197         crypto_aead_set_reqsize(tfm, sizeof(struct pcrypt_request) +
197                                      sizeof(st    198                                      sizeof(struct aead_request) +
198                                      crypto_ae    199                                      crypto_aead_reqsize(cipher));
199                                                   200 
200         return 0;                                 201         return 0;
201 }                                                 202 }
202                                                   203 
203 static void pcrypt_aead_exit_tfm(struct crypto    204 static void pcrypt_aead_exit_tfm(struct crypto_aead *tfm)
204 {                                                 205 {
205         struct pcrypt_aead_ctx *ctx = crypto_a    206         struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(tfm);
206                                                   207 
207         crypto_free_aead(ctx->child);             208         crypto_free_aead(ctx->child);
208 }                                                 209 }
209                                                   210 
210 static void pcrypt_free(struct aead_instance *    211 static void pcrypt_free(struct aead_instance *inst)
211 {                                                 212 {
212         struct pcrypt_instance_ctx *ctx = aead    213         struct pcrypt_instance_ctx *ctx = aead_instance_ctx(inst);
213                                                   214 
214         crypto_drop_aead(&ctx->spawn);            215         crypto_drop_aead(&ctx->spawn);
215         padata_free_shell(ctx->psdec);            216         padata_free_shell(ctx->psdec);
216         padata_free_shell(ctx->psenc);            217         padata_free_shell(ctx->psenc);
217         kfree(inst);                              218         kfree(inst);
218 }                                                 219 }
219                                                   220 
220 static int pcrypt_init_instance(struct crypto_    221 static int pcrypt_init_instance(struct crypto_instance *inst,
221                                 struct crypto_    222                                 struct crypto_alg *alg)
222 {                                                 223 {
223         if (snprintf(inst->alg.cra_driver_name    224         if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
224                      "pcrypt(%s)", alg->cra_dr    225                      "pcrypt(%s)", alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
225                 return -ENAMETOOLONG;             226                 return -ENAMETOOLONG;
226                                                   227 
227         memcpy(inst->alg.cra_name, alg->cra_na    228         memcpy(inst->alg.cra_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
228                                                   229 
229         inst->alg.cra_priority = alg->cra_prio    230         inst->alg.cra_priority = alg->cra_priority + 100;
230         inst->alg.cra_blocksize = alg->cra_blo    231         inst->alg.cra_blocksize = alg->cra_blocksize;
231         inst->alg.cra_alignmask = alg->cra_ali    232         inst->alg.cra_alignmask = alg->cra_alignmask;
232                                                   233 
233         return 0;                                 234         return 0;
234 }                                                 235 }
235                                                   236 
236 static int pcrypt_create_aead(struct crypto_te    237 static int pcrypt_create_aead(struct crypto_template *tmpl, struct rtattr **tb,
237                               struct crypto_at !! 238                               u32 type, u32 mask)
238 {                                                 239 {
239         struct pcrypt_instance_ctx *ctx;          240         struct pcrypt_instance_ctx *ctx;
                                                   >> 241         struct crypto_attr_type *algt;
240         struct aead_instance *inst;               242         struct aead_instance *inst;
241         struct aead_alg *alg;                     243         struct aead_alg *alg;
242         u32 mask = crypto_algt_inherited_mask( !! 244         const char *name;
243         int err;                                  245         int err;
244                                                   246 
                                                   >> 247         algt = crypto_get_attr_type(tb);
                                                   >> 248         if (IS_ERR(algt))
                                                   >> 249                 return PTR_ERR(algt);
                                                   >> 250 
                                                   >> 251         name = crypto_attr_alg_name(tb[1]);
                                                   >> 252         if (IS_ERR(name))
                                                   >> 253                 return PTR_ERR(name);
                                                   >> 254 
245         inst = kzalloc(sizeof(*inst) + sizeof(    255         inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
246         if (!inst)                                256         if (!inst)
247                 return -ENOMEM;                   257                 return -ENOMEM;
248                                                   258 
249         err = -ENOMEM;                            259         err = -ENOMEM;
250                                                   260 
251         ctx = aead_instance_ctx(inst);            261         ctx = aead_instance_ctx(inst);
252         ctx->psenc = padata_alloc_shell(pencry    262         ctx->psenc = padata_alloc_shell(pencrypt);
253         if (!ctx->psenc)                          263         if (!ctx->psenc)
254                 goto err_free_inst;            !! 264                 goto out_free_inst;
255                                                   265 
256         ctx->psdec = padata_alloc_shell(pdecry    266         ctx->psdec = padata_alloc_shell(pdecrypt);
257         if (!ctx->psdec)                          267         if (!ctx->psdec)
258                 goto err_free_inst;            !! 268                 goto out_free_psenc;
                                                   >> 269 
                                                   >> 270         crypto_set_aead_spawn(&ctx->spawn, aead_crypto_instance(inst));
259                                                   271 
260         err = crypto_grab_aead(&ctx->spawn, ae !! 272         err = crypto_grab_aead(&ctx->spawn, name, 0, 0);
261                                crypto_attr_alg << 
262         if (err)                                  273         if (err)
263                 goto err_free_inst;            !! 274                 goto out_free_psdec;
264                                                   275 
265         alg = crypto_spawn_aead_alg(&ctx->spaw    276         alg = crypto_spawn_aead_alg(&ctx->spawn);
266         err = pcrypt_init_instance(aead_crypto    277         err = pcrypt_init_instance(aead_crypto_instance(inst), &alg->base);
267         if (err)                                  278         if (err)
268                 goto err_free_inst;            !! 279                 goto out_drop_aead;
269                                                   280 
270         inst->alg.base.cra_flags |= CRYPTO_ALG !! 281         inst->alg.base.cra_flags = CRYPTO_ALG_ASYNC;
271                                                   282 
272         inst->alg.ivsize = crypto_aead_alg_ivs    283         inst->alg.ivsize = crypto_aead_alg_ivsize(alg);
273         inst->alg.maxauthsize = crypto_aead_al    284         inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);
274                                                   285 
275         inst->alg.base.cra_ctxsize = sizeof(st    286         inst->alg.base.cra_ctxsize = sizeof(struct pcrypt_aead_ctx);
276                                                   287 
277         inst->alg.init = pcrypt_aead_init_tfm;    288         inst->alg.init = pcrypt_aead_init_tfm;
278         inst->alg.exit = pcrypt_aead_exit_tfm;    289         inst->alg.exit = pcrypt_aead_exit_tfm;
279                                                   290 
280         inst->alg.setkey = pcrypt_aead_setkey;    291         inst->alg.setkey = pcrypt_aead_setkey;
281         inst->alg.setauthsize = pcrypt_aead_se    292         inst->alg.setauthsize = pcrypt_aead_setauthsize;
282         inst->alg.encrypt = pcrypt_aead_encryp    293         inst->alg.encrypt = pcrypt_aead_encrypt;
283         inst->alg.decrypt = pcrypt_aead_decryp    294         inst->alg.decrypt = pcrypt_aead_decrypt;
284                                                   295 
285         inst->free = pcrypt_free;                 296         inst->free = pcrypt_free;
286                                                   297 
287         err = aead_register_instance(tmpl, ins    298         err = aead_register_instance(tmpl, inst);
288         if (err) {                             !! 299         if (err)
289 err_free_inst:                                 !! 300                 goto out_drop_aead;
290                 pcrypt_free(inst);             !! 301 
291         }                                      !! 302 out:
292         return err;                               303         return err;
                                                   >> 304 
                                                   >> 305 out_drop_aead:
                                                   >> 306         crypto_drop_aead(&ctx->spawn);
                                                   >> 307 out_free_psdec:
                                                   >> 308         padata_free_shell(ctx->psdec);
                                                   >> 309 out_free_psenc:
                                                   >> 310         padata_free_shell(ctx->psenc);
                                                   >> 311 out_free_inst:
                                                   >> 312         kfree(inst);
                                                   >> 313         goto out;
293 }                                                 314 }
294                                                   315 
295 static int pcrypt_create(struct crypto_templat    316 static int pcrypt_create(struct crypto_template *tmpl, struct rtattr **tb)
296 {                                                 317 {
297         struct crypto_attr_type *algt;            318         struct crypto_attr_type *algt;
298                                                   319 
299         algt = crypto_get_attr_type(tb);          320         algt = crypto_get_attr_type(tb);
300         if (IS_ERR(algt))                         321         if (IS_ERR(algt))
301                 return PTR_ERR(algt);             322                 return PTR_ERR(algt);
302                                                   323 
303         switch (algt->type & algt->mask & CRYP    324         switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
304         case CRYPTO_ALG_TYPE_AEAD:                325         case CRYPTO_ALG_TYPE_AEAD:
305                 return pcrypt_create_aead(tmpl !! 326                 return pcrypt_create_aead(tmpl, tb, algt->type, algt->mask);
306         }                                         327         }
307                                                   328 
308         return -EINVAL;                           329         return -EINVAL;
309 }                                                 330 }
310                                                   331 
311 static int pcrypt_sysfs_add(struct padata_inst    332 static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
312 {                                                 333 {
313         int ret;                                  334         int ret;
314                                                   335 
315         pinst->kobj.kset = pcrypt_kset;           336         pinst->kobj.kset = pcrypt_kset;
316         ret = kobject_add(&pinst->kobj, NULL,     337         ret = kobject_add(&pinst->kobj, NULL, "%s", name);
317         if (!ret)                                 338         if (!ret)
318                 kobject_uevent(&pinst->kobj, K    339                 kobject_uevent(&pinst->kobj, KOBJ_ADD);
319                                                   340 
320         return ret;                               341         return ret;
321 }                                                 342 }
322                                                   343 
323 static int pcrypt_init_padata(struct padata_in    344 static int pcrypt_init_padata(struct padata_instance **pinst, const char *name)
324 {                                                 345 {
325         int ret = -ENOMEM;                        346         int ret = -ENOMEM;
326                                                   347 
327         *pinst = padata_alloc(name);           !! 348         *pinst = padata_alloc_possible(name);
328         if (!*pinst)                              349         if (!*pinst)
329                 return ret;                       350                 return ret;
330                                                   351 
331         ret = pcrypt_sysfs_add(*pinst, name);     352         ret = pcrypt_sysfs_add(*pinst, name);
332         if (ret)                                  353         if (ret)
333                 padata_free(*pinst);              354                 padata_free(*pinst);
334                                                   355 
335         return ret;                               356         return ret;
336 }                                                 357 }
337                                                   358 
                                                   >> 359 static void pcrypt_fini_padata(struct padata_instance *pinst)
                                                   >> 360 {
                                                   >> 361         padata_stop(pinst);
                                                   >> 362         padata_free(pinst);
                                                   >> 363 }
                                                   >> 364 
338 static struct crypto_template pcrypt_tmpl = {     365 static struct crypto_template pcrypt_tmpl = {
339         .name = "pcrypt",                         366         .name = "pcrypt",
340         .create = pcrypt_create,                  367         .create = pcrypt_create,
341         .module = THIS_MODULE,                    368         .module = THIS_MODULE,
342 };                                                369 };
343                                                   370 
344 static int __init pcrypt_init(void)               371 static int __init pcrypt_init(void)
345 {                                                 372 {
346         int err = -ENOMEM;                        373         int err = -ENOMEM;
347                                                   374 
348         pcrypt_kset = kset_create_and_add("pcr    375         pcrypt_kset = kset_create_and_add("pcrypt", NULL, kernel_kobj);
349         if (!pcrypt_kset)                         376         if (!pcrypt_kset)
350                 goto err;                         377                 goto err;
351                                                   378 
352         err = pcrypt_init_padata(&pencrypt, "p    379         err = pcrypt_init_padata(&pencrypt, "pencrypt");
353         if (err)                                  380         if (err)
354                 goto err_unreg_kset;              381                 goto err_unreg_kset;
355                                                   382 
356         err = pcrypt_init_padata(&pdecrypt, "p    383         err = pcrypt_init_padata(&pdecrypt, "pdecrypt");
357         if (err)                                  384         if (err)
358                 goto err_deinit_pencrypt;         385                 goto err_deinit_pencrypt;
359                                                   386 
                                                   >> 387         padata_start(pencrypt);
                                                   >> 388         padata_start(pdecrypt);
                                                   >> 389 
360         return crypto_register_template(&pcryp    390         return crypto_register_template(&pcrypt_tmpl);
361                                                   391 
362 err_deinit_pencrypt:                              392 err_deinit_pencrypt:
363         padata_free(pencrypt);                 !! 393         pcrypt_fini_padata(pencrypt);
364 err_unreg_kset:                                   394 err_unreg_kset:
365         kset_unregister(pcrypt_kset);             395         kset_unregister(pcrypt_kset);
366 err:                                              396 err:
367         return err;                               397         return err;
368 }                                                 398 }
369                                                   399 
370 static void __exit pcrypt_exit(void)              400 static void __exit pcrypt_exit(void)
371 {                                                 401 {
372         crypto_unregister_template(&pcrypt_tmp    402         crypto_unregister_template(&pcrypt_tmpl);
373                                                   403 
374         padata_free(pencrypt);                 !! 404         pcrypt_fini_padata(pencrypt);
375         padata_free(pdecrypt);                 !! 405         pcrypt_fini_padata(pdecrypt);
376                                                   406 
377         kset_unregister(pcrypt_kset);             407         kset_unregister(pcrypt_kset);
378 }                                                 408 }
379                                                   409 
380 subsys_initcall(pcrypt_init);                     410 subsys_initcall(pcrypt_init);
381 module_exit(pcrypt_exit);                         411 module_exit(pcrypt_exit);
382                                                   412 
383 MODULE_LICENSE("GPL");                            413 MODULE_LICENSE("GPL");
384 MODULE_AUTHOR("Steffen Klassert <steffen.klass    414 MODULE_AUTHOR("Steffen Klassert <steffen.klassert@secunet.com>");
385 MODULE_DESCRIPTION("Parallel crypto wrapper");    415 MODULE_DESCRIPTION("Parallel crypto wrapper");
386 MODULE_ALIAS_CRYPTO("pcrypt");                    416 MODULE_ALIAS_CRYPTO("pcrypt");
387                                                   417 

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