diff options
Diffstat (limited to 'eBones/lib/libkrb/get_ad_tkt.c')
-rw-r--r-- | eBones/lib/libkrb/get_ad_tkt.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/eBones/lib/libkrb/get_ad_tkt.c b/eBones/lib/libkrb/get_ad_tkt.c deleted file mode 100644 index f96644a0a817..000000000000 --- a/eBones/lib/libkrb/get_ad_tkt.c +++ /dev/null @@ -1,237 +0,0 @@ -/* - * Copyright 1986, 1987, 1988 by the Massachusetts Institute - * of Technology. - * For copying and distribution information, please see the file - * <Copyright.MIT>. - * - * from: get_ad_tkt.c,v 4.15 89/07/07 15:18:51 jtkohl Exp $ - * $Id: get_ad_tkt.c,v 1.3 1995/07/18 16:38:25 mark Exp $ - */ - -#if 0 -#ifndef lint -static char rcsid[] = -"$Id: get_ad_tkt.c,v 1.3 1995/07/18 16:38:25 mark Exp $"; -#endif /* lint */ -#endif - -#include <krb.h> -#include <des.h> -#include <prot.h> -#include <strings.h> - -#include <stdio.h> -#include <errno.h> - -/* use the bsd time.h struct defs for PC too! */ -#include <sys/time.h> -#include <sys/types.h> - -extern int krb_debug; - -struct timeval tt_local = { 0, 0 }; - -int swap_bytes; -unsigned long rep_err_code; - -/* - * get_ad_tkt obtains a new service ticket from Kerberos, using - * the ticket-granting ticket which must be in the ticket file. - * It is typically called by krb_mk_req() when the client side - * of an application is creating authentication information to be - * sent to the server side. - * - * get_ad_tkt takes four arguments: three pointers to strings which - * contain the name, instance, and realm of the service for which the - * ticket is to be obtained; and an integer indicating the desired - * lifetime of the ticket. - * - * It returns an error status if the ticket couldn't be obtained, - * or AD_OK if all went well. The ticket is stored in the ticket - * cache. - * - * The request sent to the Kerberos ticket-granting service looks - * like this: - * - * pkt->dat - * - * TEXT original contents of authenticator+ticket - * pkt->dat built in krb_mk_req call - * - * 4 bytes time_ws always 0 (?) - * char lifetime lifetime argument passed - * string service service name argument - * string sinstance service instance arg. - * - * See "prot.h" for the reply packet layout and definitions of the - * extraction macros like pkt_version(), pkt_msg_type(), etc. - */ - -int -get_ad_tkt(service,sinstance,realm,lifetime) - char *service; - char *sinstance; - char *realm; - int lifetime; -{ - static KTEXT_ST pkt_st; - KTEXT pkt = & pkt_st; /* Packet to KDC */ - static KTEXT_ST rpkt_st; - KTEXT rpkt = &rpkt_st; /* Returned packet */ - static KTEXT_ST cip_st; - KTEXT cip = &cip_st; /* Returned Ciphertext */ - static KTEXT_ST tkt_st; - KTEXT tkt = &tkt_st; /* Current ticket */ - C_Block ses; /* Session key for tkt */ - CREDENTIALS cr; - int kvno; /* Kvno for session key */ - char lrealm[REALM_SZ]; - C_Block key; /* Key for decrypting cipher */ - Key_schedule key_s; - long time_ws = 0; - - char s_name[SNAME_SZ]; - char s_instance[INST_SZ]; - int msg_byte_order; - int kerror; - char rlm[REALM_SZ]; - char *ptr; - - unsigned long kdc_time; /* KDC time */ - - if ((kerror = krb_get_tf_realm(TKT_FILE, lrealm)) != KSUCCESS) - return(kerror); - - /* Create skeleton of packet to be sent */ - (void) gettimeofday(&tt_local,(struct timezone *) 0); - - pkt->length = 0; - - /* - * Look for the session key (and other stuff we don't need) - * in the ticket file for krbtgt.realm@lrealm where "realm" - * is the service's realm (passed in "realm" argument) and - * lrealm is the realm of our initial ticket. If we don't - * have this, we will try to get it. - */ - - if ((kerror = krb_get_cred("krbtgt",realm,lrealm,&cr)) != KSUCCESS) { - /* - * If realm == lrealm, we have no hope, so let's not even try. - */ - if ((strncmp(realm, lrealm, REALM_SZ)) == 0) - return(AD_NOTGT); - else{ - if ((kerror = - get_ad_tkt("krbtgt",realm,lrealm,lifetime)) != KSUCCESS) - return(kerror); - if ((kerror = krb_get_cred("krbtgt",realm,lrealm,&cr)) != KSUCCESS) - return(kerror); - } - } - - /* - * Make up a request packet to the "krbtgt.realm@lrealm". - * Start by calling krb_mk_req() which puts ticket+authenticator - * into "pkt". Then tack other stuff on the end. - */ - - kerror = krb_mk_req(pkt,"krbtgt",realm,lrealm,0L); - - if (kerror) - return(AD_NOTGT); - - /* timestamp */ - bcopy((char *) &time_ws,(char *) (pkt->dat+pkt->length),4); - pkt->length += 4; - *(pkt->dat+(pkt->length)++) = (char) lifetime; - (void) strcpy((char *) (pkt->dat+pkt->length),service); - pkt->length += 1 + strlen(service); - (void) strcpy((char *)(pkt->dat+pkt->length),sinstance); - pkt->length += 1 + strlen(sinstance); - - rpkt->length = 0; - - /* Send the request to the local ticket-granting server */ - if ((kerror = send_to_kdc(pkt, rpkt, realm))) return(kerror); - - /* check packet version of the returned packet */ - if (pkt_version(rpkt) != KRB_PROT_VERSION ) - return(INTK_PROT); - - /* Check byte order */ - msg_byte_order = pkt_msg_type(rpkt) & 1; - swap_bytes = 0; - if (msg_byte_order != HOST_BYTE_ORDER) - swap_bytes++; - - switch (pkt_msg_type(rpkt) & ~1) { - case AUTH_MSG_KDC_REPLY: - break; - case AUTH_MSG_ERR_REPLY: - bcopy(pkt_err_code(rpkt), (char *) &rep_err_code, 4); - if (swap_bytes) - swap_u_long(rep_err_code); - return(rep_err_code); - - default: - return(INTK_PROT); - } - - /* Extract the ciphertext */ - cip->length = pkt_clen(rpkt); /* let clen do the swap */ - - bcopy((char *) pkt_cipher(rpkt),(char *) (cip->dat),cip->length); - -#ifndef NOENCRYPTION - key_sched((C_Block *)cr.session,key_s); - pcbc_encrypt((C_Block *)cip->dat,(C_Block *)cip->dat,(long)cip->length, - key_s,(C_Block *)cr.session,DECRYPT); -#endif - /* Get rid of all traces of key */ - bzero((char *) cr.session, sizeof(key)); - bzero((char *) key_s, sizeof(key_s)); - - ptr = (char *) cip->dat; - - bcopy(ptr,(char *)ses,8); - ptr += 8; - - (void) strcpy(s_name,ptr); - ptr += strlen(s_name) + 1; - - (void) strcpy(s_instance,ptr); - ptr += strlen(s_instance) + 1; - - (void) strcpy(rlm,ptr); - ptr += strlen(rlm) + 1; - - lifetime = (unsigned long) ptr[0]; - kvno = (unsigned long) ptr[1]; - tkt->length = (int) ptr[2]; - ptr += 3; - bcopy(ptr,(char *)(tkt->dat),tkt->length); - ptr += tkt->length; - - if (strcmp(s_name, service) || strcmp(s_instance, sinstance) || - strcmp(rlm, realm)) /* not what we asked for */ - return(INTK_ERR); /* we need a better code here XXX */ - - /* check KDC time stamp */ - bcopy(ptr,(char *)&kdc_time,4); /* Time (coarse) */ - if (swap_bytes) swap_u_long(kdc_time); - - ptr += 4; - - (void) gettimeofday(&tt_local,(struct timezone *) 0); - if (abs((int)(tt_local.tv_sec - kdc_time)) > CLOCK_SKEW) { - return(RD_AP_TIME); /* XXX should probably be better - code */ - } - - if ((kerror = save_credentials(s_name,s_instance,rlm,ses,lifetime, - kvno,tkt,tt_local.tv_sec))) - return(kerror); - - return(AD_OK); -} |