From 626d558bcf11cbafc8f78ae5e5f38d1274fb862e Mon Sep 17 00:00:00 2001
From: John Kohl <jtkohl@mit.edu>
Date: Wed, 27 Feb 1991 12:00:19 +0000
Subject: [PATCH] add rcache code

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@1803 dc483132-0cff-0310-8789-dd5450dbe970
---
 src/lib/krb425/rd_priv.c | 54 ++++++++++++++++++++++++++++++++++++----
 src/lib/krb425/rd_safe.c | 53 +++++++++++++++++++++++++++++++++++----
 2 files changed, 97 insertions(+), 10 deletions(-)

diff --git a/src/lib/krb425/rd_priv.c b/src/lib/krb425/rd_priv.c
index 7aef5f69a..85cbcaed7 100644
--- a/src/lib/krb425/rd_priv.c
+++ b/src/lib/krb425/rd_priv.c
@@ -2,7 +2,8 @@
  * $Source$
  * $Author$
  *
- * Copyright 1990 by the Massachusetts Institute of Technology.
+ * Copyright 1990,1991 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
  *
  * For copying and distribution information, please see the file
  * <krb5/copyright.h>.
@@ -15,8 +16,8 @@ static char rcsid_rd_priv_c[] =
 "$Id$";
 #endif	/* !lint & !SABER */
 
-#include <krb5/copyright.h>
 #include "krb425.h"
+#include <arpa/inet.h>
 
 long
 krb_rd_priv(in, in_length, sched, key, sender, receiver, msg)
@@ -31,10 +32,11 @@ MSG_DAT *msg;
 	krb5_data inbuf;
 	krb5_data out;
 	krb5_keyblock keyb;
-	krb5_address saddr;
+	krb5_address saddr, *saddr2;
 	krb5_address raddr;
 	krb5_error_code r;
 	char sa[4], ra[4];
+	krb5_rcache rcache;
 
 	keyb.keytype = KEYTYPE_DES;
 	keyb.length = sizeof(des_cblock);
@@ -54,9 +56,51 @@ MSG_DAT *msg;
 	inbuf.data = (char *)in;
 	inbuf.length = in_length;
 
-	if (r = krb5_rd_priv(&inbuf, &keyb, &saddr, &raddr, 0, 0, 0, &out)) {
+	if (r = krb5_gen_portaddr(&saddr, (krb5_pointer)&sender->sin_port,
+				  &saddr2)) {
 #ifdef	EBUG
-		ERROR(r)
+	    ERROR(r);
+#endif
+	    return(-1);
+	}
+	if (rcache = (krb5_rcache) malloc(sizeof(*rcache))) {
+	    if (!(r = krb5_rc_resolve_type(&rcache, "dfl"))) {
+		char *cachename;
+		extern krb5_deltat krb5_clockskew;
+		char *insender = inet_ntoa(sender->sin_addr);
+
+		if (cachename = calloc(1, strlen(insender)+1+4+5)) {
+		    /* 1 for NUL, 4 for rc_., 5 for digits of port
+		       (unsigned 16bit, no greater than 65535) */
+		    sprintf(cachename, "rc_%s.%u", insender,
+			    ntohs(receiver->sin_port));
+
+		    if (!(r = krb5_rc_resolve(rcache, cachename))) {
+			if (!((r = krb5_rc_recover(rcache)) &&
+			      (r = krb5_rc_initialize(rcache,
+						      krb5_clockskew)))) {
+			    r = krb5_rd_priv(&inbuf, &keyb, saddr2, &raddr,
+					     0, 0, 0, rcache, &out);
+			    krb5_rc_close(rcache);
+			}
+		    }
+		    free(cachename);
+		} else
+		    r = ENOMEM;
+	    }
+	    xfree(rcache);
+	} else {
+	    krb5_free_addr(saddr2);
+#ifdef	EBUG
+	    ERROR(ENOMEM);
+#endif
+	    return(-1);
+	}
+	krb5_free_addr(saddr2);
+
+	if (r) {
+#ifdef	EBUG
+		ERROR(r);
 #endif
 		return(-1);
 	}
diff --git a/src/lib/krb425/rd_safe.c b/src/lib/krb425/rd_safe.c
index 394a11b4f..e2ef829ce 100644
--- a/src/lib/krb425/rd_safe.c
+++ b/src/lib/krb425/rd_safe.c
@@ -2,7 +2,8 @@
  * $Source$
  * $Author$
  *
- * Copyright 1990 by the Massachusetts Institute of Technology.
+ * Copyright 1990,1991 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
  *
  * For copying and distribution information, please see the file
  * <krb5/copyright.h>.
@@ -15,8 +16,8 @@ static char rcsid_rd_safe_c[] =
 "$Id$";
 #endif	/* !lint & !SABER */
 
-#include <krb5/copyright.h>
 #include "krb425.h"
+#include <arpa/inet.h>
 
 long
 krb_rd_safe(in, in_length, key, sender, receiver, msg)
@@ -30,10 +31,11 @@ MSG_DAT *msg;
 	krb5_data inbuf;
 	krb5_data out;
 	krb5_keyblock keyb;
-	krb5_address saddr;
+	krb5_address saddr, *saddr2;
 	krb5_address raddr;
 	krb5_error_code r;
 	char sa[4], ra[4];
+	krb5_rcache rcache;
 
 	keyb.keytype = KEYTYPE_DES;
 	keyb.length = sizeof(des_cblock);
@@ -53,9 +55,50 @@ MSG_DAT *msg;
 	inbuf.data = (char *)in;
 	inbuf.length = in_length;
 
-	if (r = krb5_rd_safe(&inbuf, &keyb, &saddr, &raddr, 0, 0, &out)) {
+	if (r = krb5_gen_portaddr(&saddr, (krb5_pointer)&sender->sin_port,
+				  &saddr2)) {
 #ifdef	EBUG
-		ERROR(r)
+	    ERROR(r);
+#endif
+	    return(-1);
+	}
+	if (rcache = (krb5_rcache) malloc(sizeof(*rcache))) {
+	    if (!(r = krb5_rc_resolve_type(&rcache, "dfl"))) {
+		char *cachename;
+		extern krb5_deltat krb5_clockskew;
+		char *insender = inet_ntoa(sender->sin_addr);
+
+		if (cachename = calloc(1, strlen(insender)+1+4+5)) {
+		    /* 1 for NUL, 4 for rc_., 5 for digits of port
+		       (unsigned 16bit, no greater than 65535) */
+		    sprintf(cachename, "rc_%s.%u", insender,
+			    ntohs(receiver->sin_port));
+
+		    if (!(r = krb5_rc_resolve(rcache, cachename))) {
+			if (!((r = krb5_rc_recover(rcache)) &&
+			      (r = krb5_rc_initialize(rcache,
+						      krb5_clockskew)))) {
+			    r = krb5_rd_safe(&inbuf, &keyb, saddr2, &raddr,
+					     0, 0, rcache, &out);
+			    krb5_rc_close(rcache);
+			}
+		    }
+		    free(cachename);
+		} else
+		    r = ENOMEM;
+	    }
+	    xfree(rcache);
+	} else {
+	    krb5_free_addr(saddr2);
+#ifdef	EBUG
+	    ERROR(ENOMEM);
+#endif
+	    return(-1);
+	}
+	krb5_free_addr(saddr2);
+	if (r) {
+#ifdef	EBUG
+		ERROR(r);
 #endif
 		return(-1);
 	}
-- 
2.26.2