[2149] in Kerberos-V5-bugs

home help back first fref pref prev next nref lref last post

MH patch for Kerberos 5 POP

daemon@ATHENA.MIT.EDU (Ken Hornstein)
Wed Aug 14 15:24:21 1996

To: krb5-bugs@MIT.EDU
Date: Wed, 14 Aug 1996 15:24:08 -0400
From: Ken Hornstein <kenh@cmf.nrl.navy.mil>

------- =_aaaaaaaaaa0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <21413.840050606.1@nexus.cmf.nrl.navy.mil>

There was some interest in my patch for MH to get Kerberos POP working.  I
just got this working a few days ago, and I've been using it for all my
mail over the past couple of days and it seems pretty solid.  I've attached
the patch to this message.  It would be really cool if this could be included
in the next beta of Kerberos :-)

Comments about this patch are welcome.

--Ken

------- =_aaaaaaaaaa0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <21413.840050606.2@nexus.cmf.nrl.navy.mil>
Content-Description: Patch to mh-6.8 sources

--- zotnet/mts/client.c.orig	Mon Aug 12 00:26:34 1996
+++ zotnet/mts/client.c	Mon Aug 12 01:36:12 1996
@@ -26,6 +26,22 @@
 #include <hesiod.h>
 #endif
 
+#if defined(KPOP) && defined(K5POP)
+#error "You cannot define both KPOP and K5POP"
+#endif
+#ifdef K5POP
+#include "krb5.h"
+/* #include <krb5/ext-proto.h> */
+/* #include <krb5/los-proto.h> */
+#include "com_err.h"
+#include <ctype.h>
+
+static krb5_error_code retval;
+static krb5_ccache ccdef;
+static krb5_principal kclient = NULL, kserver = NULL;
+static krb5_context context;
+#endif
+
 #ifdef KPOP
 #include <krb.h>
 #include <ctype.h>
@@ -76,6 +92,9 @@
 static struct addrent *he, *hz;
 static struct addrent hosts[MAXHOSTS];
 
+#ifdef K5POP
+static char *kservice;		/* "pop" if using kpop */
+#endif
 #ifdef KPOP
 char krb_realm[REALM_SZ];
 char *PrincipalHostname();
@@ -122,7 +141,7 @@
     register struct netent *np;
 #endif
     register struct servent *sp;
-#ifdef	KPOP
+#if	defined(KPOP) || defined(K5POP)
     char *cp;
 
     if (cp = index (kservice = service, '/')) {	/* "pop/kpop" */
@@ -131,12 +150,12 @@
     }
     else
 	kservice = NULL;	/* not using KERBEROS */
-#endif	/* KPOP */
+#endif	/* KPOP || K5POP */
     
 
     if ((sp = getservbyname (service, protocol)) == NULL) {
 #ifdef	HESIOD
-	if ((sp = hes_getservbyname (service, protocol)) == NULL) {
+	if ((sp = (struct servent *) hes_getservbyname (service, protocol)) == NULL) {
 	    (void) sprintf (response, "%s/%s: unknown service",
 		    protocol, service);
 	    return NOTOK;
@@ -219,9 +238,9 @@
     register struct addrent *ap;
     struct sockaddr_in  in_socket;
     register struct sockaddr_in *isock = &in_socket;
-#ifdef KPOP
+#if	defined(KPOP) || defined(K5POP)
     int rem;
-#endif	/* KPOP */
+#endif	/* KPOP || K5POP */
 
     for (ap = nets; ap < ne; ap++)
 	if (ap -> a_addrtype == hp -> h_addrtype && inet (hp, ap -> a_net))
@@ -265,6 +284,65 @@
 		return NOTOK;
 	}
 
+#ifdef K5POP
+    if (kservice) {	/* "pop" */
+	krb5_error *err_ret = NULL;
+	krb5_auth_context auth_context = NULL;
+
+	krb5_init_context(&context);
+	krb5_init_ets(context);
+
+	if (retval = krb5_cc_default(context, &ccdef)) {
+	    sprintf(response, "Post office refused connection: krb5_cc_default: %s",
+		    error_message(retval));
+	    close(sd);
+	    return OOPS2;
+	}
+	if (retval = krb5_cc_get_principal(context, ccdef, &kclient)) {
+	    sprintf(response, "Post office refused connection: krb5_cc_get_principal: %s",
+		    error_message(retval));
+	    close(sd);
+	    return OOPS2;
+	}
+
+	if (retval = krb5_sname_to_principal(context, hp->h_name, kservice,
+					     KRB5_NT_SRV_HST,
+					     &kserver)) {
+	    sprintf(response, "Post office refused connection: krb5_sname_to_principal: %s",
+		    error_message(retval));
+	    close(sd);
+	    return OOPS2;
+	}
+
+	retval = krb5_sendauth(context, &auth_context, (krb5_pointer) &sd,
+			   "KPOPV1.0", kclient, kserver,
+			   AP_OPTS_MUTUAL_REQUIRED,
+			   0,		/* no checksum */
+			   0,		/* no creds, use ccache instead */
+			   ccdef,
+			   &err_ret,
+			   0,
+			   0);		/* don't need reply */
+	krb5_free_principal(context, kserver);
+	if (auth_context)
+	    krb5_auth_con_free(context, auth_context);
+	if (retval) {
+	    if (err_ret && err_ret->text.length) {
+		sprintf(response, "Post office refused connection: %s [server says '%*s'] ",
+		        error_message(retval),
+		        err_ret->text.length,
+		        err_ret->text.data);
+		krb5_free_error(context, err_ret);
+	    } else
+		sprintf(response, "Post office refused connection: %s",
+		        error_message(retval));
+	    close(sd);
+	    krb5_free_context(context);
+	    return OOPS2;
+	}
+	krb5_free_context(context);
+    }
+#endif /* K5POP */
 #ifdef KPOP
     if (kservice) {	/* "pop" */
 	ticket = (KTEXT)malloc( sizeof(KTEXT_ST) );
@@ -311,10 +389,10 @@
 		: "unknown error");
 	return NOTOK;
     }
-#ifdef KPOP
+#if	defined(KPOP) || defined(K5POP)
     if (kservice)	/* "pop" */
 	return(sd);
-#endif	/* KPOP */
+#endif	/* KPOP || K5POP */
     if (!rproto)
 	return sd;
 
--- uip/popsbr.c.orig	Mon Aug 12 00:27:00 1996
+++ uip/popsbr.c	Mon Aug 12 01:20:50 1996
@@ -15,6 +15,7 @@
 #endif /* NNTP */
 #include <stdio.h>
 #include <signal.h>
+#include <errno.h>
 
 #ifndef	POPSERVICE
 #define	POPSERVICE	"pop"
@@ -144,10 +145,15 @@
 #endif	/* APOP */
 
 #ifndef NNTP
-#ifndef	KPOP
+#if	!defined(KPOP) && !defined(K5POP)
     if ((fd1 = client (host, "tcp", POPSERVICE, rpop, response)) == NOTOK)
 #else	/* KPOP */
+#ifdef K5POP
     (void) sprintf (buffer, "%s/%s", POPSERVICE, "kpop");
+#endif
+#ifdef KPOP
+    (void) sprintf (buffer, "%s/%s", POPSERVICE, "kpop");
+#endif
     if ((fd1 = client (host, "tcp", buffer, rpop, response)) == NOTOK)
 #endif
 #else	/* NNTP */
@@ -177,7 +183,7 @@
 		fprintf (stderr, "<--- %s\n", response);
 #ifndef	NNTP
 	    if (*response == '+') {
-#ifndef	KPOP
+#if	!defined(KPOP) && !defined(K5POP)
 #ifdef	APOP
 		if (apop < 0) {
 		    char   *cp = pop_auth (user, pass);
@@ -191,7 +197,7 @@
 		    && command ("%s %s", rpop ? "RPOP" : (pophack++, "PASS"),
 					pass) != NOTOK)
 		return OK;
-#else	/* KPOP */
+#else	/* KPOP || K5POP */
 		if (command ("USER %s", user) != NOTOK
 		    && command ("PASS %s", pass) != NOTOK)
 		return OK;
--- uip/inc.c.orig	Mon Aug 12 00:27:08 1996
+++ uip/inc.c	Mon Aug 12 00:28:27 1996
@@ -19,9 +19,6 @@
 #ifdef	POP
 #include "../h/dropsbr.h"
 #endif
-#ifdef KPOP
-#include <krb.h>
-#endif
 #ifdef HESIOD
 #include <hesiod.h>
 #endif
--- conf/mhconfig.c.orig	Sat Aug 10 00:13:00 1996
+++ conf/mhconfig.c	Mon Aug 12 00:28:29 1996
@@ -134,6 +134,7 @@
     "BSD43", 0,	/* sgid ttys */
     "BSD44", 0, /* manual headings */
     "KPOP", 0, 	/* KERBEROS pop */
+    "K5POP", 0, /* KERBEROS5 pop */
     "HESIOD", 0,
     "MIME", 0,	/* multi-media extensions */
     "MPOP", 0,	/* mobile pop */
--- conf/makefiles/uip.orig	Tue Nov 30 23:00:23 1993
+++ conf/makefiles/uip	Tue Aug 13 14:44:56 1996
@@ -84,6 +84,8 @@
 @BEGIN: KPOP
 KRBLIB  =       -lkrb -ldes
 @END: KPOP
+@BEGIN: K5POP
+KRBLIB  =	-lkrb5 -lcrypto -lcom_err
 @END: POP
 @BEGIN: BPOP
 PSHLIB	=	popsbr.o
@@ -328,7 +330,7 @@
 bbc:		xbbc
 
 xbbc:		bbc.o $(PSHLIB) $(LIBES) 
-		$(LD) $(LDFLAGS) -o $@ bbc.o $(PSHLIB) $(LDLIBS)
+		$(LD) $(LDFLAGS) -o $@ bbc.o $(KRBLIB) $(PSHLIB) $(LDLIBS)
 
 l-bbc:;		$(LINT) $(LFLAGS) bbc.c $(PSHLLIBS) $(LLIBS)
 
@@ -640,7 +642,7 @@
 xmhl:   	mhl.o \
 			mhlsbr.o trmsbr.o $(LIBES) 
 		$(LD) $(LDFLAGS) -o $@ mhl.o \
-			mhlsbr.o trmsbr.o $(LDLIBS) $(LDCURSES)
+			mhlsbr.o trmsbr.o $(KRBLIB) $(LDLIBS) $(LDCURSES)
 
 l-mhl:;		$(LINT) $(LFLAGS) mhl.c \
 			mhlsbr.c trmsbr.c $(LLIBS)
@@ -676,7 +678,7 @@
 
 xmhn:  		mhn.o ftpsbr.o trmsbr.o $(LIBES) 
 		$(LD) $(LDFLAGS) -o $@ mhn.o ftpsbr.o trmsbr.o \
-				$(LDLIBS) $(LDCURSES)
+				$(KRBLIB) $(LDLIBS) $(LDCURSES)
 
 l-mhn:;		$(LINT) $(LFLAGS) mhn.c ftpsbr.c trmsbr.c $(LLIBS)
 
@@ -756,7 +758,7 @@
 			$(PSHLIB) $(LIBES)
 		$(LD) $(LDFLAGS) -o $@ msh.o mshcmds.o vmhsbr.o \
 			picksbr.o scansbr.o dropsbr.o mhlsbr.o trmsbr.o \
-			$(PSHLIB) $(LDLIBS) $(LDCURSES)
+			$(PSHLIB) $(KRBLIB) $(LDLIBS) $(LDCURSES)
 
 l-msh:;		$(LINT) $(LFLAGS) msh.c mshcmds.c vmhsbr.c \
 			picksbr.c scansbr.c dropsbr.c mhlsbr.c trmsbr.c \
@@ -809,8 +811,8 @@
 popi:		xpopi
 
 xpopi:		popi.o $(POPLIB) trmsbr.o $(LIBES)
-		$(LD) $(LDFLAGS) -o $@ popi.o $(POPLIB) trmsbr.o $(LDLIBS) \
-			$(LDCURSES)
+		$(LD) $(LDFLAGS) -o $@ popi.o $(POPLIB) trmsbr.o $(KRBLIB) \
+			$(LDLIBS) $(LDCURSES)
 
 l-popi:;	$(LINT) $(LFLAGS) popi.c $(POPLLIBS) trmsbr.c $(LLIBS)
 
@@ -835,7 +837,7 @@
 
 xpost:   	post.o \
 			aliasbr.o $(MTSBRS) $(TMALIB) $(LIBES)
-		$(LD) $(LDFLAGS) -o $@ post.o \
+		$(LD) $(KRBLIB) $(LDFLAGS) -o $@ post.o \
 			aliasbr.o $(MTSBRS) $(TMALIB) $(LDLIBS)
 
 l-post:;	$(LINT) $(LFLAGS) post.c \
@@ -1096,7 +1098,7 @@
 xshow:		show.o \
 			mhlsbr.o trmsbr.o $(LIBES) 
 		$(LD) $(LDFLAGS) -o $@ show.o \
-			mhlsbr.o trmsbr.o $(LDLIBS) $(LDCURSES)
+			mhlsbr.o trmsbr.o $(KRBLIB) $(LDLIBS) $(LDCURSES)
 
 l-show:;	$(LINT) $(LFLAGS) show.c \
 			mhlsbr.c trmsbr.c $(LLIBS)
@@ -1121,7 +1123,7 @@
 sbboards:	xsbboards
 
 xsbboards:	sbboards.o dropsbr.o $(LIBES)
-		$(LD) $(LDFLAGS) -o $@ sbboards.o dropsbr.o $(LDLIBS)
+		$(LD) $(LDFLAGS) -o $@ sbboards.o dropsbr.o $(KRBLIB) $(LDLIBS)
 
 l-sbboards:;	$(LINT) $(LFLAGS) sbboards.c dropsbr.c $(LLIBS) 
 

------- =_aaaaaaaaaa0--

home help back first fref pref prev next nref lref last post