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authorStefan Richter <stefanr@s5r6.in-berlin.de>2006-09-23 08:34:10 -0400
committerStefan Richter <stefanr@s5r6.in-berlin.de>2006-09-23 08:34:10 -0400
commit919251758195919ae3568021bc221e4f8c4b20eb (patch)
tree81137a037ff8e6c91cc8de72d568275605c653c5 /net/xfrm/xfrm_algo.c
parentc394f1eafef61c6666f5876afde6110a276c4c9f (diff)
parent3eeab61aa3ddd3c0bedb7449ada1599de22fdb5a (diff)
Merge branch 'mainline' into upstream-linus
Diffstat (limited to 'net/xfrm/xfrm_algo.c')
-rw-r--r--net/xfrm/xfrm_algo.c94
1 files changed, 63 insertions, 31 deletions
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index 04e1aea58bc9..5a0dbeb6bbe8 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -30,7 +30,8 @@
30 */ 30 */
31static struct xfrm_algo_desc aalg_list[] = { 31static struct xfrm_algo_desc aalg_list[] = {
32{ 32{
33 .name = "digest_null", 33 .name = "hmac(digest_null)",
34 .compat = "digest_null",
34 35
35 .uinfo = { 36 .uinfo = {
36 .auth = { 37 .auth = {
@@ -47,7 +48,8 @@ static struct xfrm_algo_desc aalg_list[] = {
47 } 48 }
48}, 49},
49{ 50{
50 .name = "md5", 51 .name = "hmac(md5)",
52 .compat = "md5",
51 53
52 .uinfo = { 54 .uinfo = {
53 .auth = { 55 .auth = {
@@ -64,7 +66,8 @@ static struct xfrm_algo_desc aalg_list[] = {
64 } 66 }
65}, 67},
66{ 68{
67 .name = "sha1", 69 .name = "hmac(sha1)",
70 .compat = "sha1",
68 71
69 .uinfo = { 72 .uinfo = {
70 .auth = { 73 .auth = {
@@ -81,7 +84,8 @@ static struct xfrm_algo_desc aalg_list[] = {
81 } 84 }
82}, 85},
83{ 86{
84 .name = "sha256", 87 .name = "hmac(sha256)",
88 .compat = "sha256",
85 89
86 .uinfo = { 90 .uinfo = {
87 .auth = { 91 .auth = {
@@ -98,7 +102,8 @@ static struct xfrm_algo_desc aalg_list[] = {
98 } 102 }
99}, 103},
100{ 104{
101 .name = "ripemd160", 105 .name = "hmac(ripemd160)",
106 .compat = "ripemd160",
102 107
103 .uinfo = { 108 .uinfo = {
104 .auth = { 109 .auth = {
@@ -118,7 +123,8 @@ static struct xfrm_algo_desc aalg_list[] = {
118 123
119static struct xfrm_algo_desc ealg_list[] = { 124static struct xfrm_algo_desc ealg_list[] = {
120{ 125{
121 .name = "cipher_null", 126 .name = "ecb(cipher_null)",
127 .compat = "cipher_null",
122 128
123 .uinfo = { 129 .uinfo = {
124 .encr = { 130 .encr = {
@@ -135,7 +141,8 @@ static struct xfrm_algo_desc ealg_list[] = {
135 } 141 }
136}, 142},
137{ 143{
138 .name = "des", 144 .name = "cbc(des)",
145 .compat = "des",
139 146
140 .uinfo = { 147 .uinfo = {
141 .encr = { 148 .encr = {
@@ -152,7 +159,8 @@ static struct xfrm_algo_desc ealg_list[] = {
152 } 159 }
153}, 160},
154{ 161{
155 .name = "des3_ede", 162 .name = "cbc(des3_ede)",
163 .compat = "des3_ede",
156 164
157 .uinfo = { 165 .uinfo = {
158 .encr = { 166 .encr = {
@@ -169,7 +177,8 @@ static struct xfrm_algo_desc ealg_list[] = {
169 } 177 }
170}, 178},
171{ 179{
172 .name = "cast128", 180 .name = "cbc(cast128)",
181 .compat = "cast128",
173 182
174 .uinfo = { 183 .uinfo = {
175 .encr = { 184 .encr = {
@@ -186,7 +195,8 @@ static struct xfrm_algo_desc ealg_list[] = {
186 } 195 }
187}, 196},
188{ 197{
189 .name = "blowfish", 198 .name = "cbc(blowfish)",
199 .compat = "blowfish",
190 200
191 .uinfo = { 201 .uinfo = {
192 .encr = { 202 .encr = {
@@ -203,7 +213,8 @@ static struct xfrm_algo_desc ealg_list[] = {
203 } 213 }
204}, 214},
205{ 215{
206 .name = "aes", 216 .name = "cbc(aes)",
217 .compat = "aes",
207 218
208 .uinfo = { 219 .uinfo = {
209 .encr = { 220 .encr = {
@@ -220,7 +231,8 @@ static struct xfrm_algo_desc ealg_list[] = {
220 } 231 }
221}, 232},
222{ 233{
223 .name = "serpent", 234 .name = "cbc(serpent)",
235 .compat = "serpent",
224 236
225 .uinfo = { 237 .uinfo = {
226 .encr = { 238 .encr = {
@@ -237,7 +249,8 @@ static struct xfrm_algo_desc ealg_list[] = {
237 } 249 }
238}, 250},
239{ 251{
240 .name = "twofish", 252 .name = "cbc(twofish)",
253 .compat = "twofish",
241 254
242 .uinfo = { 255 .uinfo = {
243 .encr = { 256 .encr = {
@@ -350,8 +363,8 @@ struct xfrm_algo_desc *xfrm_calg_get_byid(int alg_id)
350EXPORT_SYMBOL_GPL(xfrm_calg_get_byid); 363EXPORT_SYMBOL_GPL(xfrm_calg_get_byid);
351 364
352static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list, 365static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list,
353 int entries, char *name, 366 int entries, u32 type, u32 mask,
354 int probe) 367 char *name, int probe)
355{ 368{
356 int i, status; 369 int i, status;
357 370
@@ -359,7 +372,8 @@ static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list,
359 return NULL; 372 return NULL;
360 373
361 for (i = 0; i < entries; i++) { 374 for (i = 0; i < entries; i++) {
362 if (strcmp(name, list[i].name)) 375 if (strcmp(name, list[i].name) &&
376 (!list[i].compat || strcmp(name, list[i].compat)))
363 continue; 377 continue;
364 378
365 if (list[i].available) 379 if (list[i].available)
@@ -368,7 +382,7 @@ static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list,
368 if (!probe) 382 if (!probe)
369 break; 383 break;
370 384
371 status = crypto_alg_available(name, 0); 385 status = crypto_has_alg(name, type, mask | CRYPTO_ALG_ASYNC);
372 if (!status) 386 if (!status)
373 break; 387 break;
374 388
@@ -380,19 +394,25 @@ static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list,
380 394
381struct xfrm_algo_desc *xfrm_aalg_get_byname(char *name, int probe) 395struct xfrm_algo_desc *xfrm_aalg_get_byname(char *name, int probe)
382{ 396{
383 return xfrm_get_byname(aalg_list, aalg_entries(), name, probe); 397 return xfrm_get_byname(aalg_list, aalg_entries(),
398 CRYPTO_ALG_TYPE_HASH, CRYPTO_ALG_TYPE_HASH_MASK,
399 name, probe);
384} 400}
385EXPORT_SYMBOL_GPL(xfrm_aalg_get_byname); 401EXPORT_SYMBOL_GPL(xfrm_aalg_get_byname);
386 402
387struct xfrm_algo_desc *xfrm_ealg_get_byname(char *name, int probe) 403struct xfrm_algo_desc *xfrm_ealg_get_byname(char *name, int probe)
388{ 404{
389 return xfrm_get_byname(ealg_list, ealg_entries(), name, probe); 405 return xfrm_get_byname(ealg_list, ealg_entries(),
406 CRYPTO_ALG_TYPE_BLKCIPHER, CRYPTO_ALG_TYPE_MASK,
407 name, probe);
390} 408}
391EXPORT_SYMBOL_GPL(xfrm_ealg_get_byname); 409EXPORT_SYMBOL_GPL(xfrm_ealg_get_byname);
392 410
393struct xfrm_algo_desc *xfrm_calg_get_byname(char *name, int probe) 411struct xfrm_algo_desc *xfrm_calg_get_byname(char *name, int probe)
394{ 412{
395 return xfrm_get_byname(calg_list, calg_entries(), name, probe); 413 return xfrm_get_byname(calg_list, calg_entries(),
414 CRYPTO_ALG_TYPE_COMPRESS, CRYPTO_ALG_TYPE_MASK,
415 name, probe);
396} 416}
397EXPORT_SYMBOL_GPL(xfrm_calg_get_byname); 417EXPORT_SYMBOL_GPL(xfrm_calg_get_byname);
398 418
@@ -427,19 +447,22 @@ void xfrm_probe_algs(void)
427 BUG_ON(in_softirq()); 447 BUG_ON(in_softirq());
428 448
429 for (i = 0; i < aalg_entries(); i++) { 449 for (i = 0; i < aalg_entries(); i++) {
430 status = crypto_alg_available(aalg_list[i].name, 0); 450 status = crypto_has_hash(aalg_list[i].name, 0,
451 CRYPTO_ALG_ASYNC);
431 if (aalg_list[i].available != status) 452 if (aalg_list[i].available != status)
432 aalg_list[i].available = status; 453 aalg_list[i].available = status;
433 } 454 }
434 455
435 for (i = 0; i < ealg_entries(); i++) { 456 for (i = 0; i < ealg_entries(); i++) {
436 status = crypto_alg_available(ealg_list[i].name, 0); 457 status = crypto_has_blkcipher(ealg_list[i].name, 0,
458 CRYPTO_ALG_ASYNC);
437 if (ealg_list[i].available != status) 459 if (ealg_list[i].available != status)
438 ealg_list[i].available = status; 460 ealg_list[i].available = status;
439 } 461 }
440 462
441 for (i = 0; i < calg_entries(); i++) { 463 for (i = 0; i < calg_entries(); i++) {
442 status = crypto_alg_available(calg_list[i].name, 0); 464 status = crypto_has_comp(calg_list[i].name, 0,
465 CRYPTO_ALG_ASYNC);
443 if (calg_list[i].available != status) 466 if (calg_list[i].available != status)
444 calg_list[i].available = status; 467 calg_list[i].available = status;
445 } 468 }
@@ -471,11 +494,12 @@ EXPORT_SYMBOL_GPL(xfrm_count_enc_supported);
471 494
472/* Move to common area: it is shared with AH. */ 495/* Move to common area: it is shared with AH. */
473 496
474void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm, 497int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
475 int offset, int len, icv_update_fn_t icv_update) 498 int offset, int len, icv_update_fn_t icv_update)
476{ 499{
477 int start = skb_headlen(skb); 500 int start = skb_headlen(skb);
478 int i, copy = start - offset; 501 int i, copy = start - offset;
502 int err;
479 struct scatterlist sg; 503 struct scatterlist sg;
480 504
481 /* Checksum header. */ 505 /* Checksum header. */
@@ -487,10 +511,12 @@ void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
487 sg.offset = (unsigned long)(skb->data + offset) % PAGE_SIZE; 511 sg.offset = (unsigned long)(skb->data + offset) % PAGE_SIZE;
488 sg.length = copy; 512 sg.length = copy;
489 513
490 icv_update(tfm, &sg, 1); 514 err = icv_update(desc, &sg, copy);
515 if (unlikely(err))
516 return err;
491 517
492 if ((len -= copy) == 0) 518 if ((len -= copy) == 0)
493 return; 519 return 0;
494 offset += copy; 520 offset += copy;
495 } 521 }
496 522
@@ -510,10 +536,12 @@ void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
510 sg.offset = frag->page_offset + offset-start; 536 sg.offset = frag->page_offset + offset-start;
511 sg.length = copy; 537 sg.length = copy;
512 538
513 icv_update(tfm, &sg, 1); 539 err = icv_update(desc, &sg, copy);
540 if (unlikely(err))
541 return err;
514 542
515 if (!(len -= copy)) 543 if (!(len -= copy))
516 return; 544 return 0;
517 offset += copy; 545 offset += copy;
518 } 546 }
519 start = end; 547 start = end;
@@ -531,15 +559,19 @@ void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
531 if ((copy = end - offset) > 0) { 559 if ((copy = end - offset) > 0) {
532 if (copy > len) 560 if (copy > len)
533 copy = len; 561 copy = len;
534 skb_icv_walk(list, tfm, offset-start, copy, icv_update); 562 err = skb_icv_walk(list, desc, offset-start,
563 copy, icv_update);
564 if (unlikely(err))
565 return err;
535 if ((len -= copy) == 0) 566 if ((len -= copy) == 0)
536 return; 567 return 0;
537 offset += copy; 568 offset += copy;
538 } 569 }
539 start = end; 570 start = end;
540 } 571 }
541 } 572 }
542 BUG_ON(len); 573 BUG_ON(len);
574 return 0;
543} 575}
544EXPORT_SYMBOL_GPL(skb_icv_walk); 576EXPORT_SYMBOL_GPL(skb_icv_walk);
545 577