X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/a27002e5cd012026c6b5462babe81f6a5633a543..a4c0faa29945935489f44e26272c0069e54c516c:/auth2.c

diff --git a/auth2.c b/auth2.c
index 639bf911..1177efa7 100644
--- a/auth2.c
+++ b/auth2.c
@@ -23,7 +23,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: auth2.c,v 1.99 2003/06/24 08:23:46 markus Exp $");
+RCSID("$OpenBSD: auth2.c,v 1.104 2003/11/04 08:54:09 djm Exp $");
 
 #include "ssh2.h"
 #include "xmalloc.h"
@@ -36,13 +36,15 @@ RCSID("$OpenBSD: auth2.c,v 1.99 2003/06/24 08:23:46 markus Exp $");
 #include "pathnames.h"
 #include "monitor_wrap.h"
 
+#ifdef GSSAPI
+#include "ssh-gss.h"
+#endif
+
 /* import */
 extern ServerOptions options;
 extern u_char *session_id2;
 extern u_int session_id2_len;
 
-Authctxt *x_authctxt = NULL;
-
 /* methods */
 
 extern Authmethod method_none;
@@ -50,19 +52,19 @@ extern Authmethod method_pubkey;
 extern Authmethod method_passwd;
 extern Authmethod method_kbdint;
 extern Authmethod method_hostbased;
-#ifdef KRB5
-extern Authmethod method_kerberos;
+#ifdef GSSAPI
+extern Authmethod method_gssapi;
 #endif
 
 Authmethod *authmethods[] = {
 	&method_none,
 	&method_pubkey,
+#ifdef GSSAPI
+	&method_gssapi,
+#endif
 	&method_passwd,
 	&method_kbdint,
 	&method_hostbased,
-#ifdef KRB5
-	&method_kerberos,
-#endif
 	NULL
 };
 
@@ -75,19 +77,14 @@ static void input_userauth_request(int, u_int32_t, void *);
 static Authmethod *authmethod_lookup(const char *);
 static char *authmethods_get(void);
 int user_key_allowed(struct passwd *, Key *);
-int hostbased_key_allowed(struct passwd *, const char *, char *, Key *);
 
 /*
  * loop until authctxt->success == TRUE
  */
 
-Authctxt *
-do_authentication2(void)
+void
+do_authentication2(Authctxt *authctxt)
 {
-	Authctxt *authctxt = authctxt_new();
-
-	x_authctxt = authctxt;		/*XXX*/
-
 	/* challenge-response is implemented via keyboard interactive */
 	if (options.challenge_response_authentication)
 		options.kbd_interactive_authentication = 1;
@@ -95,8 +92,6 @@ do_authentication2(void)
 	dispatch_init(&dispatch_protocol_error);
 	dispatch_set(SSH2_MSG_SERVICE_REQUEST, &input_service_request);
 	dispatch_run(DISPATCH_BLOCK, &authctxt->success, authctxt);
-
-	return (authctxt);
 }
 
 static void
@@ -155,23 +150,24 @@ input_userauth_request(int type, u_int32_t seq, void *ctxt)
 	if (authctxt->attempt++ == 0) {
 		/* setup auth context */
 		authctxt->pw = PRIVSEP(getpwnamallow(user));
+		authctxt->user = xstrdup(user);
 		if (authctxt->pw && strcmp(service, "ssh-connection")==0) {
 			authctxt->valid = 1;
 			debug2("input_userauth_request: setting up authctxt for %s", user);
 #ifdef USE_PAM
 			if (options.use_pam)
-				PRIVSEP(start_pam(authctxt->pw->pw_name));
+				PRIVSEP(start_pam(authctxt));
 #endif
 		} else {
 			logit("input_userauth_request: illegal user %s", user);
+			authctxt->pw = fakepw();
 #ifdef USE_PAM
 			if (options.use_pam)
-				PRIVSEP(start_pam(user));
+				PRIVSEP(start_pam(authctxt));
 #endif
 		}
 		setproctitle("%s%s", authctxt->pw ? user : "unknown",
 		    use_privsep ? " [net]" : "");
-		authctxt->user = xstrdup(user);
 		authctxt->service = xstrdup(service);
 		authctxt->style = style ? xstrdup(style) : NULL;
 		if (use_privsep)
@@ -184,6 +180,12 @@ input_userauth_request(int type, u_int32_t seq, void *ctxt)
 	}
 	/* reset state */
 	auth2_challenge_stop(authctxt);
+
+#ifdef GSSAPI
+	dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL);
+	dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE, NULL);
+#endif
+
 	authctxt->postponed = 0;
 
 	/* try to authenticate user */
@@ -213,6 +215,11 @@ userauth_finish(Authctxt *authctxt, int authenticated, char *method)
 	    !auth_root_allowed(method))
 		authenticated = 0;
 
+#ifdef USE_PAM
+	if (options.use_pam && authenticated && !PRIVSEP(do_pam_account()))
+		authenticated = 0;
+#endif
+
 #ifdef _UNICOS
 	if (authenticated && cray_access_denied(authctxt->user)) {
 		authenticated = 0;
@@ -248,14 +255,6 @@ userauth_finish(Authctxt *authctxt, int authenticated, char *method)
 	}
 }
 
-/* get current user */
-
-struct passwd*
-auth_get_user(void)
-{
-	return (x_authctxt != NULL && x_authctxt->valid) ? x_authctxt->pw : NULL;
-}
-
 #define	DELIM	","
 
 static char *