105186eeee
(Including all changes for FreeBSD - importing the original eBones distribution would be too complex at this stage, since I don't have access to Piero's CVS.) (If you want to include eBones in your system, don't forget to include MAKE_EBONES in /etc/make.conf.) (This stuff is now also suppable from braae.ru.ac.za.) Bones originally from MIT SIPB. Original port to FreeBSD 1.x by Piero Serini. Moved to FreeBSD 2.0 by Doug Rabson and Geoff Rehmet. Nice bug fixes from Doug Rabson.
117 lines
3.7 KiB
C
117 lines
3.7 KiB
C
/*
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* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
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* of Technology.
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* For copying and distribution information, please see the file
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* <Copyright.MIT>.
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*
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* from: create_auth_reply.c,v 4.10 89/01/13 17:47:38 steiner Exp $
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* $Id: create_auth_reply.c,v 1.2 1994/07/19 19:24:56 g89r4222 Exp $
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*/
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#ifndef lint
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static char *rcsid =
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"$Id: create_auth_reply.c,v 1.2 1994/07/19 19:24:56 g89r4222 Exp $";
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#endif /* lint */
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#include <krb.h>
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#include <prot.h>
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#include <strings.h>
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/*
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* This routine is called by the Kerberos authentication server
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* to create a reply to an authentication request. The routine
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* takes the user's name, instance, and realm, the client's
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* timestamp, the number of tickets, the user's key version
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* number and the ciphertext containing the tickets themselves.
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* It constructs a packet and returns a pointer to it.
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*
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* Notes: The packet returned by this routine is static. Thus, if you
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* intend to keep the result beyond the next call to this routine, you
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* must copy it elsewhere.
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*
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* The packet is built in the following format:
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*
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* variable
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* type or constant data
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* ---- ----------- ----
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*
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* unsigned char KRB_PROT_VERSION protocol version number
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*
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* unsigned char AUTH_MSG_KDC_REPLY protocol message type
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*
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* [least significant HOST_BYTE_ORDER sender's (server's) byte
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* bit of above field] order
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*
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* string pname principal's name
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*
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* string pinst principal's instance
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*
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* string prealm principal's realm
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*
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* unsigned long time_ws client's timestamp
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*
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* unsigned char n number of tickets
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*
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* unsigned long x_date expiration date
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*
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* unsigned char kvno master key version
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*
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* short w_1 cipher length
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*
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* --- cipher->dat cipher data
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*/
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KTEXT
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create_auth_reply(pname,pinst,prealm,time_ws,n,x_date,kvno,cipher)
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char *pname; /* Principal's name */
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char *pinst; /* Principal's instance */
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char *prealm; /* Principal's authentication domain */
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long time_ws; /* Workstation time */
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int n; /* Number of tickets */
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unsigned long x_date; /* Principal's expiration date */
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int kvno; /* Principal's key version number */
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KTEXT cipher; /* Cipher text with tickets and
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* session keys */
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{
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static KTEXT_ST pkt_st;
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KTEXT pkt = &pkt_st;
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unsigned char *v = pkt->dat; /* Prot vers number */
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unsigned char *t = (pkt->dat+1); /* Prot message type */
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short w_l; /* Cipher length */
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/* Create fixed part of packet */
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*v = (unsigned char) KRB_PROT_VERSION;
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*t = (unsigned char) AUTH_MSG_KDC_REPLY;
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*t |= HOST_BYTE_ORDER;
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if (n != 0)
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*v = 3;
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/* Add the basic info */
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(void) strcpy((char *) (pkt->dat+2), pname);
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pkt->length = 3 + strlen(pname);
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(void) strcpy((char *) (pkt->dat+pkt->length),pinst);
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pkt->length += 1 + strlen(pinst);
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(void) strcpy((char *) (pkt->dat+pkt->length),prealm);
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pkt->length += 1 + strlen(prealm);
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/* Workstation timestamp */
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bcopy((char *) &time_ws, (char *) (pkt->dat+pkt->length), 4);
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pkt->length += 4;
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*(pkt->dat+(pkt->length)++) = (unsigned char) n;
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/* Expiration date */
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bcopy((char *) &x_date, (char *) (pkt->dat+pkt->length),4);
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pkt->length += 4;
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/* Now send the ciphertext and info to help decode it */
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*(pkt->dat+(pkt->length)++) = (unsigned char) kvno;
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w_l = (short) cipher->length;
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bcopy((char *) &w_l,(char *) (pkt->dat+pkt->length),2);
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pkt->length += 2;
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bcopy((char *) (cipher->dat), (char *) (pkt->dat+pkt->length),
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cipher->length);
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pkt->length += cipher->length;
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/* And return the packet */
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return pkt;
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}
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