diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/create_auth_reply.c')
| -rw-r--r-- | crypto/kerberosIV/lib/krb/create_auth_reply.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/krb/create_auth_reply.c b/crypto/kerberosIV/lib/krb/create_auth_reply.c new file mode 100644 index 0000000..4976c46 --- /dev/null +++ b/crypto/kerberosIV/lib/krb/create_auth_reply.c @@ -0,0 +1,131 @@ +/* + * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the Kungliga Tekniska + * Högskolan and its contributors. + * + * 4. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb_locl.h" + +RCSID("$Id: create_auth_reply.c,v 1.11 1997/04/01 08:18:20 joda Exp $"); + +/* + * 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(char *pname, /* Principal's name */ + char *pinst, /* Principal's instance */ + char *prealm, /* Principal's authentication domain */ + int32_t time_ws, /* Workstation time */ + int n, /* Number of tickets */ + u_int32_t 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 *p = pkt->dat; + + p += krb_put_int(KRB_PROT_VERSION, p, 1); + p += krb_put_int(AUTH_MSG_KDC_REPLY, p, 1); + + if(n != 0){ + /* barf on old code */ + krb_warning("create_auth_reply: don't give me no krb3 crap!" + " (n == %d)\n", n); + return NULL; + } + + + p += krb_put_nir(pname, pinst, prealm, p); + + p += krb_put_int(time_ws, p, 4); + + p += krb_put_int(n, p, 1); + + p += krb_put_int(x_date, p, 4); + + p += krb_put_int(kvno, p, 1); + + p += krb_put_int(cipher->length, p, 2); + + memcpy(p, cipher->dat, cipher->length); + p += cipher->length; + + pkt->length = p - pkt->dat; + + return pkt; +} |
