- add patch to support AES-192-CBC and AES-256-CBC

to the crypto engine (assuming your card supports them).
This make the Hifn cards much more useful as AES-256 is
the default encryption for many client applications.

Submitted by:	Spike Ilacqua
Obtained from:	OpenBSD

1 files changed, 210 insertions, 0 deletions

diff --git a/security/openssl/files/patch-hw_cryptodev.c-aes_256 b/security/openssl/files/patch-hw_cryptodev.c-aes_256
new file mode 100644
index 000000000000..e4efffa21530
--- /dev/null
+++ b/security/openssl/files/patch-hw_cryptodev.c-aes_256
@@ -0,0 +1,210 @@
+===================================================================
+RCS file: crypto/engine/hw_cryptodev.c,v
+retrieving revision 1.17
+retrieving revision 1.18
+diff -u -p -r1.17 -r1.18
+--- crypto/engine/hw_cryptodev.c	2003/06/03 15:57:44	1.17
++++ crypto/engine/hw_cryptodev.c	2003/08/07 16:27:47	1.18
+@@ -68,14 +68,19 @@ struct dev_crypto_state {
+ 	int d_fd;
+ };
+ 
++struct dev_crypto_cipher {
++	int	c_id;
++	int	c_nid;
++	int	c_ivmax;
++	int	c_keylen;
++};
++
+ static u_int32_t cryptodev_asymfeat = 0;
+ 
+ static int get_asym_dev_crypto(void);
+ static int open_dev_crypto(void);
+ static int get_dev_crypto(void);
+-static int cryptodev_max_iv(int cipher);
+-static int cryptodev_key_length_valid(int cipher, int len);
+-static int cipher_nid_to_cryptodev(int nid);
++static struct dev_crypto_cipher *cipher_nid_to_cryptodev(int nid);
+ static int get_cryptodev_ciphers(const int **cnids);
+ static int get_cryptodev_digests(const int **cnids);
+ static int cryptodev_usable_ciphers(const int **nids);
+@@ -122,15 +127,12 @@ static const ENGINE_CMD_DEFN cryptodev_d
+ 	{ 0, NULL, NULL, 0 }
+ };
+ 
+-static struct {
+-	int	id;
+-	int	nid;
+-	int	ivmax;
+-	int	keylen;
+-} ciphers[] = {
++static struct dev_crypto_cipher ciphers[] = {
+ 	{ CRYPTO_DES_CBC,		NID_des_cbc,		8,	 8, },
+ 	{ CRYPTO_3DES_CBC,		NID_des_ede3_cbc,	8,	24, },
+ 	{ CRYPTO_AES_CBC,		NID_aes_128_cbc,	16,	16, },
++	{ CRYPTO_AES_CBC,		NID_aes_192_cbc,	16,	24, },
++	{ CRYPTO_AES_CBC,		NID_aes_256_cbc,	16,	32, },
+ 	{ CRYPTO_BLF_CBC,		NID_bf_cbc,		8,	16, },
+ 	{ CRYPTO_CAST_CBC,		NID_cast5_cbc,		8,	16, },
+ 	{ CRYPTO_SKIPJACK_CBC,		NID_undef,		0,	 0, },
+@@ -200,48 +202,16 @@ get_asym_dev_crypto(void)
+ 	return fd;
+ }
+ 
+-/*
+- * XXXX this needs to be set for each alg - and determined from
+- * a running card.
+- */
+-static int
+-cryptodev_max_iv(int cipher)
+-{
+-	int i;
+-
+-	for (i = 0; ciphers[i].id; i++)
+-		if (ciphers[i].id == cipher)
+-			return (ciphers[i].ivmax);
+-	return (0);
+-}
+-
+-/*
+- * XXXX this needs to be set for each alg - and determined from
+- * a running card. For now, fake it out - but most of these
+- * for real devices should return 1 for the supported key
+- * sizes the device can handle.
+- */
+-static int
+-cryptodev_key_length_valid(int cipher, int len)
+-{
+-	int i;
+-
+-	for (i = 0; ciphers[i].id; i++)
+-		if (ciphers[i].id == cipher)
+-			return (ciphers[i].keylen == len);
+-	return (0);
+-}
+-
+ /* convert libcrypto nids to cryptodev */
+-static int
++static struct dev_crypto_cipher *
+ cipher_nid_to_cryptodev(int nid)
+ {
+ 	int i;
+ 
+-	for (i = 0; ciphers[i].id; i++)
+-		if (ciphers[i].nid == nid)
+-			return (ciphers[i].id);
+-	return (0);
++	for (i = 0; ciphers[i].c_id; i++)
++		if (ciphers[i].c_nid == nid)
++			return (&ciphers[i]);
++	return (NULL);
+ }
+ 
+ /*
+@@ -264,15 +234,15 @@ get_cryptodev_ciphers(const int **cnids)
+ 	memset(&sess, 0, sizeof(sess));
+ 	sess.key = (caddr_t)"123456781234567812345678";
+ 
+-	for (i = 0; ciphers[i].id && count < CRYPTO_ALGORITHM_MAX; i++) {
+-		if (ciphers[i].nid == NID_undef)
++	for (i = 0; ciphers[i].c_id && count < CRYPTO_ALGORITHM_MAX; i++) {
++		if (ciphers[i].c_nid == NID_undef)
+ 			continue;
+-		sess.cipher = ciphers[i].id;
+-		sess.keylen = ciphers[i].keylen;
++		sess.cipher = ciphers[i].c_id;
++		sess.keylen = ciphers[i].c_keylen;
+ 		sess.mac = 0;
+ 		if (ioctl(fd, CIOCGSESSION, &sess) != -1 &&
+ 		    ioctl(fd, CIOCFSESSION, &sess.ses) != -1)
+-			nids[count++] = ciphers[i].nid;
++			nids[count++] = ciphers[i].c_nid;
+ 	}
+ 	close(fd);
+ 
+@@ -425,15 +395,15 @@ cryptodev_init_key(EVP_CIPHER_CTX *ctx, 
+ {
+ 	struct dev_crypto_state *state = ctx->cipher_data;
+ 	struct session_op *sess = &state->d_sess;
+-	int cipher;
++	struct dev_crypto_cipher *cipher;
+ 
+-	if ((cipher = cipher_nid_to_cryptodev(ctx->cipher->nid)) == NID_undef)
++	if ((cipher = cipher_nid_to_cryptodev(ctx->cipher->nid)) == NULL)
+ 		return (0);
+ 
+-	if (ctx->cipher->iv_len > cryptodev_max_iv(cipher))
++	if (ctx->cipher->iv_len > cipher->c_ivmax)
+ 		return (0);
+ 
+-	if (!cryptodev_key_length_valid(cipher, ctx->key_len))
++	if (ctx->key_len != cipher->c_keylen)
+ 		return (0);
+ 
+ 	memset(sess, 0, sizeof(struct session_op));
+@@ -443,7 +413,7 @@ cryptodev_init_key(EVP_CIPHER_CTX *ctx, 
+ 
+ 	sess->key = (unsigned char *)key;
+ 	sess->keylen = ctx->key_len;
+-	sess->cipher = cipher;
++	sess->cipher = cipher->c_id;
+ 
+ 	if (ioctl(state->d_fd, CIOCGSESSION, sess) == -1) {
+ 		close(state->d_fd);
+@@ -548,7 +518,7 @@ const EVP_CIPHER cryptodev_cast_cbc = {
+ 	NULL
+ };
+ 
+-const EVP_CIPHER cryptodev_aes_cbc = {
++const EVP_CIPHER cryptodev_aes_128_cbc = {
+ 	NID_aes_128_cbc,
+ 	16, 16, 16,
+ 	EVP_CIPH_CBC_MODE,
+@@ -561,6 +531,32 @@ const EVP_CIPHER cryptodev_aes_cbc = {
+ 	NULL
+ };
+ 
++const EVP_CIPHER cryptodev_aes_192_cbc = {
++	NID_aes_192_cbc,
++	16, 24, 16,
++	EVP_CIPH_CBC_MODE,
++	cryptodev_init_key,
++	cryptodev_cipher,
++	cryptodev_cleanup,
++	sizeof(struct dev_crypto_state),
++	EVP_CIPHER_set_asn1_iv,
++	EVP_CIPHER_get_asn1_iv,
++	NULL
++};
++
++const EVP_CIPHER cryptodev_aes_256_cbc = {
++	NID_aes_256_cbc,
++	16, 32, 16,
++	EVP_CIPH_CBC_MODE,
++	cryptodev_init_key,
++	cryptodev_cipher,
++	cryptodev_cleanup,
++	sizeof(struct dev_crypto_state),
++	EVP_CIPHER_set_asn1_iv,
++	EVP_CIPHER_get_asn1_iv,
++	NULL
++};
++
+ /*
+  * Registered by the ENGINE when used to find out how to deal with
+  * a particular NID in the ENGINE. this says what we'll do at the
+@@ -587,7 +583,13 @@ cryptodev_engine_ciphers(ENGINE *e, cons
+ 		*cipher = &cryptodev_cast_cbc;
+ 		break;
+ 	case NID_aes_128_cbc:
+-		*cipher = &cryptodev_aes_cbc;
++		*cipher = &cryptodev_aes_128_cbc;
++		break;
++	case NID_aes_192_cbc:
++		*cipher = &cryptodev_aes_192_cbc;
++		break;
++	case NID_aes_256_cbc:
++		*cipher = &cryptodev_aes_256_cbc;
+ 		break;
+ 	default:
+ 		*cipher = NULL;