===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/cipher.c,v
retrieving revision 1.65
retrieving revision 1.65.2.2
diff -u -r1.65 -r1.65.2.2
--- src/usr.bin/ssh/cipher.c	2003/05/17 04:27:52	1.65
+++ src/usr.bin/ssh/cipher.c	2004/08/19 22:37:31	1.65.2.2
@@ -35,7 +35,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: cipher.c,v 1.65 2003/05/17 04:27:52 markus Exp $");
+RCSID("$OpenBSD: cipher.c,v 1.65.2.2 2004/08/19 22:37:31 brad Exp $");
 
 #include "xmalloc.h"
 #include "log.h"
@@ -52,6 +52,7 @@
 extern void ssh1_3des_iv(EVP_CIPHER_CTX *, int, u_char *, int);
 extern const EVP_CIPHER *evp_aes_128_ctr(void);
 extern void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, int, u_char *, u_int);
+#define EVP_acss NULL
 
 struct Cipher {
 	char	*name;
@@ -60,19 +61,19 @@
 	u_int	key_len;
 	const EVP_CIPHER	*(*evptype)(void);
 } ciphers[] = {
-	{ "none", 		SSH_CIPHER_NONE, 8, 0, EVP_enc_null },
-	{ "des", 		SSH_CIPHER_DES, 8, 8, EVP_des_cbc },
-	{ "3des", 		SSH_CIPHER_3DES, 8, 16, evp_ssh1_3des },
-	{ "blowfish", 		SSH_CIPHER_BLOWFISH, 8, 32, evp_ssh1_bf },
+	{ "none",		SSH_CIPHER_NONE, 8, 0, EVP_enc_null },
+	{ "des",		SSH_CIPHER_DES, 8, 8, EVP_des_cbc },
+	{ "3des",		SSH_CIPHER_3DES, 8, 16, evp_ssh1_3des },
+	{ "blowfish",		SSH_CIPHER_BLOWFISH, 8, 32, evp_ssh1_bf },
 
-	{ "3des-cbc", 		SSH_CIPHER_SSH2, 8, 24, EVP_des_ede3_cbc },
-	{ "blowfish-cbc", 	SSH_CIPHER_SSH2, 8, 16, EVP_bf_cbc },
-	{ "cast128-cbc", 	SSH_CIPHER_SSH2, 8, 16, EVP_cast5_cbc },
-	{ "arcfour", 		SSH_CIPHER_SSH2, 8, 16, EVP_rc4 },
+	{ "3des-cbc",		SSH_CIPHER_SSH2, 8, 24, EVP_des_ede3_cbc },
+	{ "blowfish-cbc",	SSH_CIPHER_SSH2, 8, 16, EVP_bf_cbc },
+	{ "cast128-cbc",	SSH_CIPHER_SSH2, 8, 16, EVP_cast5_cbc },
+	{ "arcfour",		SSH_CIPHER_SSH2, 8, 16, EVP_rc4 },
 #if OPENSSL_VERSION_NUMBER < 0x00907000L
-	{ "aes128-cbc", 	SSH_CIPHER_SSH2, 16, 16, evp_rijndael },
-	{ "aes192-cbc", 	SSH_CIPHER_SSH2, 16, 24, evp_rijndael },
-	{ "aes256-cbc", 	SSH_CIPHER_SSH2, 16, 32, evp_rijndael },
+	{ "aes128-cbc",		SSH_CIPHER_SSH2, 16, 16, evp_rijndael },
+	{ "aes192-cbc",		SSH_CIPHER_SSH2, 16, 24, evp_rijndael },
+	{ "aes256-cbc",		SSH_CIPHER_SSH2, 16, 32, evp_rijndael },
 	{ "rijndael-cbc@lysator.liu.se",
 				SSH_CIPHER_SSH2, 16, 32, evp_rijndael },
 #else
@@ -82,29 +83,30 @@
 	{ "rijndael-cbc@lysator.liu.se",
 				SSH_CIPHER_SSH2, 16, 32, EVP_aes_256_cbc },
 #endif
-	{ "aes128-ctr", 	SSH_CIPHER_SSH2, 16, 16, evp_aes_128_ctr },
-	{ "aes192-ctr", 	SSH_CIPHER_SSH2, 16, 24, evp_aes_128_ctr },
-	{ "aes256-ctr", 	SSH_CIPHER_SSH2, 16, 32, evp_aes_128_ctr },
+	{ "aes128-ctr",		SSH_CIPHER_SSH2, 16, 16, evp_aes_128_ctr },
+	{ "aes192-ctr",		SSH_CIPHER_SSH2, 16, 24, evp_aes_128_ctr },
+	{ "aes256-ctr",		SSH_CIPHER_SSH2, 16, 32, evp_aes_128_ctr },
+	{ "acss@openssh.org",	SSH_CIPHER_SSH2, 16, 5, EVP_acss },
 
-	{ NULL,			SSH_CIPHER_ILLEGAL, 0, 0, NULL }
+	{ NULL,			SSH_CIPHER_INVALID, 0, 0, NULL }
 };
 
 /*--*/
 
 u_int
-cipher_blocksize(Cipher *c)
+cipher_blocksize(const Cipher *c)
 {
 	return (c->block_size);
 }
 
 u_int
-cipher_keylen(Cipher *c)
+cipher_keylen(const Cipher *c)
 {
 	return (c->key_len);
 }
 
 u_int
-cipher_get_number(Cipher *c)
+cipher_get_number(const Cipher *c)
 {
 	return (c->number);
 }
@@ -146,25 +148,25 @@
 ciphers_valid(const char *names)
 {
 	Cipher *c;
-	char *ciphers, *cp;
+	char *cipher_list, *cp;
 	char *p;
 
 	if (names == NULL || strcmp(names, "") == 0)
 		return 0;
-	ciphers = cp = xstrdup(names);
+	cipher_list = cp = xstrdup(names);
 	for ((p = strsep(&cp, CIPHER_SEP)); p && *p != '\0';
 	    (p = strsep(&cp, CIPHER_SEP))) {
 		c = cipher_by_name(p);
 		if (c == NULL || c->number != SSH_CIPHER_SSH2) {
 			debug("bad cipher %s [%s]", p, names);
-			xfree(ciphers);
+			xfree(cipher_list);
 			return 0;
 		} else {
 			debug3("cipher ok: %s [%s]", p, names);
 		}
 	}
 	debug3("ciphers ok: [%s]", names);
-	xfree(ciphers);
+	xfree(cipher_list);
 	return 1;
 }
 
@@ -193,7 +195,7 @@
 void
 cipher_init(CipherContext *cc, Cipher *cipher,
     const u_char *key, u_int keylen, const u_char *iv, u_int ivlen,
-    int encrypt)
+    int do_encrypt)
 {
 	static int dowarn = 1;
 	const EVP_CIPHER *type;
@@ -222,7 +224,7 @@
 
 	EVP_CIPHER_CTX_init(&cc->evp);
 	if (EVP_CipherInit(&cc->evp, type, NULL, (u_char *)iv,
-	    (encrypt == CIPHER_ENCRYPT)) == 0)
+	    (do_encrypt == CIPHER_ENCRYPT)) == 0)
 		fatal("cipher_init: EVP_CipherInit failed for %s",
 		    cipher->name);
 	klen = EVP_CIPHER_CTX_key_length(&cc->evp);
@@ -260,7 +262,7 @@
 
 void
 cipher_set_key_string(CipherContext *cc, Cipher *cipher,
-    const char *passphrase, int encrypt)
+    const char *passphrase, int do_encrypt)
 {
 	MD5_CTX md;
 	u_char digest[16];
@@ -269,7 +271,7 @@
 	MD5_Update(&md, (const u_char *)passphrase, strlen(passphrase));
 	MD5_Final(digest, &md);
 
-	cipher_init(cc, cipher, digest, 16, NULL, 0, encrypt);
+	cipher_init(cc, cipher, digest, 16, NULL, 0, do_encrypt);
 
 	memset(digest, 0, sizeof(digest));
 	memset(&md, 0, sizeof(md));
@@ -282,7 +284,7 @@
  */
 
 int
-cipher_get_keyiv_len(CipherContext *cc)
+cipher_get_keyiv_len(const CipherContext *cc)
 {
 	Cipher *c = cc->cipher;
 	int ivlen;
@@ -368,12 +370,12 @@
 #endif
 
 int
-cipher_get_keycontext(CipherContext *cc, u_char *dat)
+cipher_get_keycontext(const CipherContext *cc, u_char *dat)
 {
 	Cipher *c = cc->cipher;
 	int plen = 0;
 
-	if (c->evptype == EVP_rc4) {
+	if (c->evptype == EVP_rc4 || c->evptype == EVP_acss) {
 		plen = EVP_X_STATE_LEN(cc->evp);
 		if (dat == NULL)
 			return (plen);
@@ -388,7 +390,7 @@
 	Cipher *c = cc->cipher;
 	int plen;
 
-	if (c->evptype == EVP_rc4) {
+	if (c->evptype == EVP_rc4 || c->evptype == EVP_acss) {
 		plen = EVP_X_STATE_LEN(cc->evp);
 		memcpy(EVP_X_STATE(cc->evp), dat, plen);
 	}