X-Git-Url: http://andersk.mit.edu/gitweb/gssapi-openssh.git/blobdiff_plain/5ff39d34a50802bab296b50eb09d097062e07f03..HEAD:/openssh/kex.h

diff --git a/openssh/kex.h b/openssh/kex.h
index 50b8659..eab992d 100644
--- a/openssh/kex.h
+++ b/openssh/kex.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kex.h,v 1.33 2003/02/16 17:09:57 markus Exp $	*/
+/* $OpenBSD: kex.h,v 1.47 2009/05/27 06:34:36 andreas Exp $ */
 
 /*
  * Copyright (c) 2000, 2001 Markus Friedl.  All rights reserved.
@@ -26,13 +26,20 @@
 #ifndef KEX_H
 #define KEX_H
 
+#include <signal.h>
 #include <openssl/evp.h>
-#include "buffer.h"
-#include "cipher.h"
-#include "key.h"
+#include <openssl/hmac.h>
 
-#define	KEX_DH1		"diffie-hellman-group1-sha1"
-#define	KEX_DHGEX	"diffie-hellman-group-exchange-sha1"
+#define KEX_COOKIE_LEN	16
+
+#define	KEX_DH1			"diffie-hellman-group1-sha1"
+#define	KEX_DH14		"diffie-hellman-group14-sha1"
+#define	KEX_DHGEX_SHA1		"diffie-hellman-group-exchange-sha1"
+#define	KEX_DHGEX_SHA256	"diffie-hellman-group-exchange-sha256"
+
+#define COMP_NONE	0
+#define COMP_ZLIB	1
+#define COMP_DELAYED	2
 
 enum kex_init_proposals {
 	PROPOSAL_KEX_ALGS,
@@ -56,8 +63,12 @@ enum kex_modes {
 
 enum kex_exchange {
 	KEX_DH_GRP1_SHA1,
+	KEX_DH_GRP14_SHA1,
 	KEX_DH_GEX_SHA1,
+	KEX_DH_GEX_SHA256,
 	KEX_GSS_GRP1_SHA1,
+	KEX_GSS_GRP14_SHA1,
+	KEX_GSS_GEX_SHA1,
 	KEX_MAX
 };
 
@@ -81,10 +92,13 @@ struct Enc {
 struct Mac {
 	char	*name;
 	int	enabled;
-	const EVP_MD	*md;
-	int	mac_len;
+	u_int	mac_len;
 	u_char	*key;
-	int	key_len;
+	u_int	key_len;
+	int	type;
+	const EVP_MD	*evp_md;
+	HMAC_CTX	evp_ctx;
+	struct umac_ctx *umac_ctx;
 };
 struct Comp {
 	int	type;
@@ -97,38 +111,42 @@ struct Newkeys {
 	Comp	comp;
 };
 
-struct KexOptions {
-	int	gss_deleg_creds;
-};
-
 struct Kex {
 	u_char	*session_id;
 	u_int	session_id_len;
 	Newkeys	*newkeys[MODE_MAX];
-	int	we_need;
+	u_int	we_need;
 	int	server;
 	char	*name;
 	int	hostkey_type;
 	int	kex_type;
 	Buffer	my;
 	Buffer	peer;
-	int	done;
+	sig_atomic_t done;
 	int	flags;
+	const EVP_MD *evp_md;
+#ifdef GSSAPI
+	int	gss_deleg_creds;
+	int	gss_trust_dns;
+	char    *gss_host;
+	char	*gss_client;
+#endif
 	char	*client_version_string;
 	char	*server_version_string;
-	struct  KexOptions options;
 	int	(*verify_host_key)(Key *);
 	Key	*(*load_host_key)(int);
 	int	(*host_key_index)(Key *);
 	void	(*kex[KEX_MAX])(Kex *);
 };
 
+void kex_prop2buf(Buffer *, char *proposal[PROPOSAL_MAX]);
+
 Kex	*kex_setup(char *[PROPOSAL_MAX]);
 void	 kex_finish(Kex *);
 
 void	 kex_send_kexinit(Kex *);
 void	 kex_input_kexinit(int, u_int32_t, void *);
-void	 kex_derive_keys(Kex *, u_char *, BIGNUM *);
+void	 kex_derive_keys(Kex *, u_char *, u_int, BIGNUM *);
 
 Newkeys *kex_get_newkeys(int);
 
@@ -136,17 +154,22 @@ void	 kexdh_client(Kex *);
 void	 kexdh_server(Kex *);
 void	 kexgex_client(Kex *);
 void	 kexgex_server(Kex *);
+
 #ifdef GSSAPI
-void     kexgss_client(Kex *);
-void     kexgss_server(Kex *);
+void	kexgss_client(Kex *);
+void	kexgss_server(Kex *);
 #endif
 
-u_char *
+void
 kex_dh_hash(char *, char *, char *, int, char *, int, u_char *, int,
-    BIGNUM *, BIGNUM *, BIGNUM *);
-u_char *
-kexgex_hash(char *, char *, char *, int, char *, int, u_char *, int,
-    int, int, int, BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *);
+    BIGNUM *, BIGNUM *, BIGNUM *, u_char **, u_int *);
+void
+kexgex_hash(const EVP_MD *, char *, char *, char *, int, char *,
+    int, u_char *, int, int, int, int, BIGNUM *, BIGNUM *, BIGNUM *,
+    BIGNUM *, BIGNUM *, u_char **, u_int *);
+
+void
+derive_ssh1_session_id(BIGNUM *, BIGNUM *, u_int8_t[8], u_int8_t[16]);
 
 #if defined(DEBUG_KEX) || defined(DEBUG_KEXDH)
 void	dump_digest(char *, u_char *, int);