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authorHerbert Xu <herbert@gondor.apana.org.au>2006-08-22 06:36:13 -0400
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-20 21:46:15 -0400
commitf12cc2090d721647c23dfce20834f4306db3b77d (patch)
treefba6861bdb58153acaab1ba1e51ec4e48fe0fd99 /drivers/net/wireless
parent378c6697a282c383d89428380a3405bf95189347 (diff)
[CRYPTO] users: Use block ciphers where applicable
This patch converts all remaining users to use the new block cipher type where applicable. It also changes all simple cipher operations to use the new encrypt_one/decrypt_one interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/airo.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index a4dd13942714..170c500169da 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -19,6 +19,7 @@
19 19
20======================================================================*/ 20======================================================================*/
21 21
22#include <linux/err.h>
22#include <linux/init.h> 23#include <linux/init.h>
23 24
24#include <linux/kernel.h> 25#include <linux/kernel.h>
@@ -1203,7 +1204,7 @@ struct airo_info {
1203 struct iw_spy_data spy_data; 1204 struct iw_spy_data spy_data;
1204 struct iw_public_data wireless_data; 1205 struct iw_public_data wireless_data;
1205 /* MIC stuff */ 1206 /* MIC stuff */
1206 struct crypto_tfm *tfm; 1207 struct crypto_cipher *tfm;
1207 mic_module mod[2]; 1208 mic_module mod[2];
1208 mic_statistics micstats; 1209 mic_statistics micstats;
1209 HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors 1210 HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors
@@ -1271,7 +1272,8 @@ static int flashrestart(struct airo_info *ai,struct net_device *dev);
1271 1272
1272static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq); 1273static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq);
1273static void MoveWindow(miccntx *context, u32 micSeq); 1274static void MoveWindow(miccntx *context, u32 micSeq);
1274static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *); 1275static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1276 struct crypto_cipher *tfm);
1275static void emmh32_init(emmh32_context *context); 1277static void emmh32_init(emmh32_context *context);
1276static void emmh32_update(emmh32_context *context, u8 *pOctets, int len); 1278static void emmh32_update(emmh32_context *context, u8 *pOctets, int len);
1277static void emmh32_final(emmh32_context *context, u8 digest[4]); 1279static void emmh32_final(emmh32_context *context, u8 digest[4]);
@@ -1339,10 +1341,11 @@ static int micsetup(struct airo_info *ai) {
1339 int i; 1341 int i;
1340 1342
1341 if (ai->tfm == NULL) 1343 if (ai->tfm == NULL)
1342 ai->tfm = crypto_alloc_tfm("aes", CRYPTO_TFM_REQ_MAY_SLEEP); 1344 ai->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
1343 1345
1344 if (ai->tfm == NULL) { 1346 if (IS_ERR(ai->tfm)) {
1345 airo_print_err(ai->dev->name, "failed to load transform for AES"); 1347 airo_print_err(ai->dev->name, "failed to load transform for AES");
1348 ai->tfm = NULL;
1346 return ERROR; 1349 return ERROR;
1347 } 1350 }
1348 1351
@@ -1608,7 +1611,8 @@ static void MoveWindow(miccntx *context, u32 micSeq)
1608static unsigned char aes_counter[16]; 1611static unsigned char aes_counter[16];
1609 1612
1610/* expand the key to fill the MMH coefficient array */ 1613/* expand the key to fill the MMH coefficient array */
1611static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *tfm) 1614static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1615 struct crypto_cipher *tfm)
1612{ 1616{
1613 /* take the keying material, expand if necessary, truncate at 16-bytes */ 1617 /* take the keying material, expand if necessary, truncate at 16-bytes */
1614 /* run through AES counter mode to generate context->coeff[] */ 1618 /* run through AES counter mode to generate context->coeff[] */
@@ -1616,7 +1620,6 @@ static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct
1616 int i,j; 1620 int i,j;
1617 u32 counter; 1621 u32 counter;
1618 u8 *cipher, plain[16]; 1622 u8 *cipher, plain[16];
1619 struct scatterlist sg[1];
1620 1623
1621 crypto_cipher_setkey(tfm, pkey, 16); 1624 crypto_cipher_setkey(tfm, pkey, 16);
1622 counter = 0; 1625 counter = 0;
@@ -1627,9 +1630,8 @@ static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct
1627 aes_counter[12] = (u8)(counter >> 24); 1630 aes_counter[12] = (u8)(counter >> 24);
1628 counter++; 1631 counter++;
1629 memcpy (plain, aes_counter, 16); 1632 memcpy (plain, aes_counter, 16);
1630 sg_set_buf(sg, plain, 16); 1633 crypto_cipher_encrypt_one(tfm, plain, plain);
1631 crypto_cipher_encrypt(tfm, sg, sg, 16); 1634 cipher = plain;
1632 cipher = kmap(sg->page) + sg->offset;
1633 for (j=0; (j<16) && (i< (sizeof(context->coeff)/sizeof(context->coeff[0]))); ) { 1635 for (j=0; (j<16) && (i< (sizeof(context->coeff)/sizeof(context->coeff[0]))); ) {
1634 context->coeff[i++] = ntohl(*(u32 *)&cipher[j]); 1636 context->coeff[i++] = ntohl(*(u32 *)&cipher[j]);
1635 j += 4; 1637 j += 4;
@@ -2432,7 +2434,7 @@ void stop_airo_card( struct net_device *dev, int freeres )
2432 ai->shared, ai->shared_dma); 2434 ai->shared, ai->shared_dma);
2433 } 2435 }
2434 } 2436 }
2435 crypto_free_tfm(ai->tfm); 2437 crypto_free_cipher(ai->tfm);
2436 del_airo_dev( dev ); 2438 del_airo_dev( dev );
2437 free_netdev( dev ); 2439 free_netdev( dev );
2438} 2440}