-/* $OpenBSD: kex.h,v 1.38 2005/11/04 05:15:59 djm Exp $ */
+/* $OpenBSD: kex.h,v 1.47 2009/05/27 06:34:36 andreas Exp $ */
/*
* Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
#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_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
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
};
struct Mac {
char *name;
int enabled;
- const EVP_MD *md;
u_int mac_len;
u_char *key;
u_int key_len;
+ int type;
+ const EVP_MD *evp_md;
+ HMAC_CTX evp_ctx;
+ struct umac_ctx *umac_ctx;
};
struct Comp {
int type;
Mac mac;
Comp comp;
};
+
struct Kex {
u_char *session_id;
u_int session_id_len;
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;
int (*verify_host_key)(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 kexgex_client(Kex *);
void kexgex_server(Kex *);
+#ifdef GSSAPI
+void kexgss_client(Kex *);
+void kexgss_server(Kex *);
+#endif
+
void
kex_dh_hash(char *, char *, char *, int, char *, int, u_char *, int,
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 *,
+ int, u_char *, int, int, int, int, BIGNUM *, BIGNUM *, BIGNUM *,
BIGNUM *, BIGNUM *, u_char **, u_int *);
void