X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/661e45a0ee062c14d7d2f482f828dfc16bde2387..79cfe67cb38c7c3b2f3a8024b6b96e7bbb5c5188:/monitor.c

diff --git a/monitor.c b/monitor.c
index 69445ee2..b91cfded 100644
--- a/monitor.c
+++ b/monitor.c
@@ -25,7 +25,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: monitor.c,v 1.26 2002/09/09 14:54:15 markus Exp $");
+RCSID("$OpenBSD: monitor.c,v 1.30 2002/11/05 19:45:20 markus Exp $");
 
 #include <openssl/dh.h>
 
@@ -120,6 +120,9 @@ int mm_answer_sessid(int, Buffer *);
 int mm_answer_pam_start(int, Buffer *);
 #endif
 
+#ifdef KRB4
+int mm_answer_krb4(int, Buffer *);
+#endif
 #ifdef KRB5
 int mm_answer_krb5(int, Buffer *);
 #endif
@@ -203,6 +206,9 @@ struct mon_table mon_dispatch_proto15[] = {
 #ifdef USE_PAM
     {MONITOR_REQ_PAM_START, MON_ONCE, mm_answer_pam_start},
 #endif
+#ifdef KRB4
+    {MONITOR_REQ_KRB4, MON_ONCE|MON_AUTH, mm_answer_krb4},
+#endif
 #ifdef KRB5
     {MONITOR_REQ_KRB5, MON_ONCE|MON_AUTH, mm_answer_krb5},
 #endif
@@ -1285,6 +1291,51 @@ mm_answer_rsa_response(int socket, Buffer *m)
 	return (success);
 }
 
+#ifdef KRB4
+int
+mm_answer_krb4(int socket, Buffer *m)
+{
+	KTEXT_ST auth, reply;
+	char  *client, *p;
+	int success;
+	u_int alen;
+
+	reply.length = auth.length = 0;
+ 
+	p = buffer_get_string(m, &alen);
+	if (alen >=  MAX_KTXT_LEN)
+		 fatal("%s: auth too large", __func__);
+	memcpy(auth.dat, p, alen);
+	auth.length = alen;
+	memset(p, 0, alen);
+	xfree(p);
+
+	success = options.kerberos_authentication &&
+	    authctxt->valid &&
+	    auth_krb4(authctxt, &auth, &client, &reply);
+
+	memset(auth.dat, 0, alen);
+	buffer_clear(m);
+	buffer_put_int(m, success);
+
+	if (success) {
+		buffer_put_cstring(m, client);
+		buffer_put_string(m, reply.dat, reply.length);
+		if (client)
+			xfree(client);
+		if (reply.length)
+			memset(reply.dat, 0, reply.length);
+	}
+
+	debug3("%s: sending result %d", __func__, success);
+	mm_request_send(socket, MONITOR_ANS_KRB4, m);
+
+	auth_method = "kerberos";
+
+	/* Causes monitor loop to terminate if authenticated */
+	return (success);
+}
+#endif
 
 #ifdef KRB5
 int
@@ -1299,7 +1350,9 @@ mm_answer_krb5(int socket, Buffer *m)
 	tkt.data = buffer_get_string(m, &len);
 	tkt.length = len;
 
-	success = auth_krb5(authctxt, &tkt, &client_user, &reply);
+	success = options.kerberos_authentication &&
+	    authctxt->valid &&
+	    auth_krb5(authctxt, &tkt, &client_user, &reply);
 
 	if (tkt.length)
 		xfree(tkt.data);
@@ -1498,7 +1551,7 @@ mm_get_keystate(struct monitor *pmonitor)
 void *
 mm_zalloc(struct mm_master *mm, u_int ncount, u_int size)
 {
-	size_t len = size * ncount;
+	size_t len = (size_t) size * ncount;
 	void *address;
 
 	if (len == 0 || ncount > SIZE_T_MAX / size)