diff options
Diffstat (limited to 'eBones/krb/create_auth_reply.c')
| -rw-r--r-- | eBones/krb/create_auth_reply.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/eBones/krb/create_auth_reply.c b/eBones/krb/create_auth_reply.c new file mode 100644 index 0000000..e47d4df --- /dev/null +++ b/eBones/krb/create_auth_reply.c @@ -0,0 +1,116 @@ +/* + * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute + * of Technology. + * For copying and distribution information, please see the file + * <Copyright.MIT>. + * + * from: create_auth_reply.c,v 4.10 89/01/13 17:47:38 steiner Exp $ + * $Id: create_auth_reply.c,v 1.2 1994/07/19 19:24:56 g89r4222 Exp $ + */ + +#ifndef lint +static char *rcsid = +"$Id: create_auth_reply.c,v 1.2 1994/07/19 19:24:56 g89r4222 Exp $"; +#endif /* lint */ + +#include <krb.h> +#include <prot.h> +#include <strings.h> + +/* + * This routine is called by the Kerberos authentication server + * to create a reply to an authentication request. The routine + * takes the user's name, instance, and realm, the client's + * timestamp, the number of tickets, the user's key version + * number and the ciphertext containing the tickets themselves. + * It constructs a packet and returns a pointer to it. + * + * Notes: The packet returned by this routine is static. Thus, if you + * intend to keep the result beyond the next call to this routine, you + * must copy it elsewhere. + * + * The packet is built in the following format: + * + * variable + * type or constant data + * ---- ----------- ---- + * + * unsigned char KRB_PROT_VERSION protocol version number + * + * unsigned char AUTH_MSG_KDC_REPLY protocol message type + * + * [least significant HOST_BYTE_ORDER sender's (server's) byte + * bit of above field] order + * + * string pname principal's name + * + * string pinst principal's instance + * + * string prealm principal's realm + * + * unsigned long time_ws client's timestamp + * + * unsigned char n number of tickets + * + * unsigned long x_date expiration date + * + * unsigned char kvno master key version + * + * short w_1 cipher length + * + * --- cipher->dat cipher data + */ + +KTEXT +create_auth_reply(pname,pinst,prealm,time_ws,n,x_date,kvno,cipher) + char *pname; /* Principal's name */ + char *pinst; /* Principal's instance */ + char *prealm; /* Principal's authentication domain */ + long time_ws; /* Workstation time */ + int n; /* Number of tickets */ + unsigned long x_date; /* Principal's expiration date */ + int kvno; /* Principal's key version number */ + KTEXT cipher; /* Cipher text with tickets and + * session keys */ +{ + static KTEXT_ST pkt_st; + KTEXT pkt = &pkt_st; + unsigned char *v = pkt->dat; /* Prot vers number */ + unsigned char *t = (pkt->dat+1); /* Prot message type */ + short w_l; /* Cipher length */ + + /* Create fixed part of packet */ + *v = (unsigned char) KRB_PROT_VERSION; + *t = (unsigned char) AUTH_MSG_KDC_REPLY; + *t |= HOST_BYTE_ORDER; + + if (n != 0) + *v = 3; + + /* Add the basic info */ + (void) strcpy((char *) (pkt->dat+2), pname); + pkt->length = 3 + strlen(pname); + (void) strcpy((char *) (pkt->dat+pkt->length),pinst); + pkt->length += 1 + strlen(pinst); + (void) strcpy((char *) (pkt->dat+pkt->length),prealm); + pkt->length += 1 + strlen(prealm); + /* Workstation timestamp */ + bcopy((char *) &time_ws, (char *) (pkt->dat+pkt->length), 4); + pkt->length += 4; + *(pkt->dat+(pkt->length)++) = (unsigned char) n; + /* Expiration date */ + bcopy((char *) &x_date, (char *) (pkt->dat+pkt->length),4); + pkt->length += 4; + + /* Now send the ciphertext and info to help decode it */ + *(pkt->dat+(pkt->length)++) = (unsigned char) kvno; + w_l = (short) cipher->length; + bcopy((char *) &w_l,(char *) (pkt->dat+pkt->length),2); + pkt->length += 2; + bcopy((char *) (cipher->dat), (char *) (pkt->dat+pkt->length), + cipher->length); + pkt->length += cipher->length; + + /* And return the packet */ + return pkt; +} |
