From 75e7059acab469e865319e7556637efbcbaedd99 Mon Sep 17 00:00:00 2001 From: Theodore Tso Date: Sat, 20 Nov 1993 02:17:33 +0000 Subject: [PATCH] Track style changes in Borman release of telnet git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@3009 dc483132-0cff-0310-8789-dd5450dbe970 --- src/appl/telnet/libtelnet/kerberos5.c | 46 +++++++++++++++++++-------- 1 file changed, 32 insertions(+), 14 deletions(-) diff --git a/src/appl/telnet/libtelnet/kerberos5.c b/src/appl/telnet/libtelnet/kerberos5.c index c22eee453..3bc43c46d 100644 --- a/src/appl/telnet/libtelnet/kerberos5.c +++ b/src/appl/telnet/libtelnet/kerberos5.c @@ -13,8 +13,8 @@ char rcsid_kerberos5_c[] = "$Id$"; #endif /* lint */ /*- - * Copyright (c) 1991 The Regents of the University of California. - * All rights reserved. + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -46,7 +46,7 @@ char rcsid_kerberos5_c[] = "$Id$"; */ #ifndef lint -static char sccsid[] = "@(#)kerberos5.c 5.3 (Berkeley) 12/18/92"; +static char sccsid[] = "@(#)kerberos5.c 8.1 (Berkeley) 6/4/93"; #endif /* not lint */ /* @@ -82,6 +82,7 @@ static char sccsid[] = "@(#)kerberos5.c 5.3 (Berkeley) 12/18/92"; #include #include +#define FORWARD /* Do credentials forwarding.... */ /* kerberos 5 include files (ext-proto.h) will get an appropriate stdlib.h and string.h/strings.h */ @@ -91,6 +92,8 @@ static char sccsid[] = "@(#)kerberos5.c 5.3 (Berkeley) 12/18/92"; #include "misc.h" extern auth_debug_mode; + +#ifdef FORWARD int forward_flags = 0; /* Flags get set in telnet/main.c on -f and -F */ /* These values need to be the same as those defined in telnet/main.c. */ @@ -98,6 +101,10 @@ int forward_flags = 0; /* Flags get set in telnet/main.c on -f and -F */ #define OPTS_FORWARD_CREDS 0x00000002 #define OPTS_FORWARDABLE_CREDS 0x00000001 +void kerberos5_forward(); + +#endif /* FORWARD */ + static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, AUTHTYPE_KERBEROS_V5, }; /*static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION, @@ -107,9 +114,12 @@ static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, #define KRB_REJECT 1 /* Rejected (reason might follow) */ #define KRB_ACCEPT 2 /* Accepted */ #define KRB_RESPONSE 3 /* Response for mutual auth. */ + +#ifdef FORWARD #define KRB_FORWARD 4 /* Forwarded credentials follow */ #define KRB_FORWARD_ACCEPT 5 /* Forwarded credentials accepted */ #define KRB_FORWARD_REJECT 6 /* Forwarded credentials rejected */ +#endif /* FORWARD */ static krb5_data auth; /* telnetd gets session key from here */ @@ -117,8 +127,6 @@ static krb5_tkt_authent *authdat = NULL; /* telnet matches the AP_REQ and AP_REP with this */ static krb5_authenticator authenticator; -void kerberos5_forward(); - /* some compilers can't hack void *, so we use the Kerberos krb5_pointer, which is either void * or char *, depending on the compiler. */ @@ -190,9 +198,9 @@ kerberos5_send(ap) extern krb5_flags krb5_kdc_default_options; int ap_opts; -#if defined(ENCRYPTION) +#ifdef ENCRYPTION krb5_keyblock *newkey = 0; -#endif +#endif /* ENCRYPTION */ ksum.checksum_type = CKSUMTYPE_CRC32; ksum.contents = sum; @@ -280,11 +288,11 @@ kerberos5_send(ap) ap_opts = 0; r = krb5_mk_req_extended(ap_opts, &ksum, krb5_kdc_default_options, 0, -#if defined(ENCRYPTION) +#ifdef ENCRYPTION &newkey, -#else +#else /* ENCRYPTION */ 0, -#endif +#endif /* ENCRYPTION */ ccache, &creds, &authenticator, &auth); /* don't let the key get freed if we clean up the authenticator */ authenticator.subkey = 0; @@ -292,7 +300,7 @@ kerberos5_send(ap) free(name); krb5_free_host_realm(realms); krb5_free_principal(server); -#if defined(ENCRYPTION) +#ifdef ENCRYPTION if (newkey) { /* keep the key in our private storage, but don't use it yet---see kerberos5_reply() below */ @@ -309,7 +317,7 @@ kerberos5_send(ap) } krb5_free_keyblock(newkey); } -#endif +#endif /* ENCRYPTION */ if (r) { if (auth_debug_mode) { printf("Kerberos V5: mk_req failed (%s)\r\n", @@ -465,6 +473,7 @@ kerberos5_is(ap, data, cnt) encrypt_session_key(&skey, 1); #endif break; +#ifdef FORWARD case KRB_FORWARD: inbuf.data = (char *)data; inbuf.length = cnt; @@ -483,6 +492,7 @@ kerberos5_is(ap, data, cnt) if (auth_debug_mode) printf("Forwarded credentials obtained\r\n"); break; +#endif /* FORWARD */ default: if (auth_debug_mode) printf("Unknown Kerberos option %d\r\n", data[-1]); @@ -523,8 +533,10 @@ kerberos5_reply(ap, data, cnt) else printf("[ Kerberos V5 accepts you ]\n"); auth_finished(ap, AUTH_USER); +#ifdef FORWARD if (forward_flags & OPTS_FORWARD_CREDS) kerberos5_forward(ap); +#endif /* FORWARD */ break; case KRB_RESPONSE: if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) { @@ -554,15 +566,16 @@ kerberos5_reply(ap, data, cnt) return; } krb5_free_ap_rep_enc_part(reply); -#if defined(ENCRYPTION) +#ifdef ENCRYPTION skey.type = SK_DES; skey.length = 8; skey.data = session_key; encrypt_session_key(&skey, 0); -#endif +#endif /* ENCRYPTION */ mutual_complete = 1; } return; +#ifdef FORWARD case KRB_FORWARD_ACCEPT: printf("[ Kerberos V5 accepted forwarded credentials ]\n"); return; @@ -570,6 +583,7 @@ kerberos5_reply(ap, data, cnt) printf("[ Kerberos V5 refuses forwarded credentials because %.*s ]\r\n", cnt, data); return; +#endif /* FORWARD */ default: if (auth_debug_mode) printf("Unknown Kerberos option %d\r\n", data[-1]); @@ -636,6 +650,7 @@ kerberos5_printsub(data, cnt, buf, buflen) strncpy((char *)buf, " RESPONSE", buflen); goto common2; +#ifdef FORWARD case KRB_FORWARD: /* Forwarded credentials follow */ strncpy((char *)buf, " FORWARD", buflen); goto common2; @@ -648,6 +663,7 @@ kerberos5_printsub(data, cnt, buf, buflen) /* (reason might follow) */ strncpy((char *)buf, " FORWARD_REJECT", buflen); goto common2; +#endif /* FORWARD */ default: sprintf(lbuf, " %d (unknown)", data[3]); @@ -663,6 +679,7 @@ kerberos5_printsub(data, cnt, buf, buflen) } } +#ifdef FORWARD void kerberos5_forward(ap) Authenticator *ap; @@ -742,5 +759,6 @@ kerberos5_forward(ap) krb5_free_creds(local_creds); } +#endif /* FORWARD */ #endif /* KRB5 */ -- 2.26.2