diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/kdc_reply.c')
| -rw-r--r-- | crypto/kerberosIV/lib/krb/kdc_reply.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/krb/kdc_reply.c b/crypto/kerberosIV/lib/krb/kdc_reply.c new file mode 100644 index 0000000..aa012e0 --- /dev/null +++ b/crypto/kerberosIV/lib/krb/kdc_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: kdc_reply.c,v 1.9 1997/04/15 21:52:14 assar Exp $"); + +static int little_endian; /* XXX ugly */ + +int +kdc_reply_cred(KTEXT cip, CREDENTIALS *cred) +{ + unsigned char *p = cip->dat; + + memcpy(cred->session, p, 8); + p += 8; + + if(p + strlen((char*)p) > cip->dat + cip->length) + return INTK_BADPW; + p += krb_get_string(p, cred->service); + + if(p + strlen((char*)p) > cip->dat + cip->length) + return INTK_BADPW; + p += krb_get_string(p, cred->instance); + + if(p + strlen((char*)p) > cip->dat + cip->length) + return INTK_BADPW; + p += krb_get_string(p, cred->realm); + + if(p + 3 > cip->dat + cip->length) + return INTK_BADPW; + cred->lifetime = *p++; + cred->kvno = *p++; + cred->ticket_st.length = *p++; + + if(p + cred->ticket_st.length + 4 > cip->dat + cip->length) + return INTK_BADPW; + memcpy(cred->ticket_st.dat, p, cred->ticket_st.length); + p += cred->ticket_st.length; + + p += krb_get_int(p, (u_int32_t *)&cred->issue_date, 4, little_endian); + + return KSUCCESS; +} + +int +kdc_reply_cipher(KTEXT reply, KTEXT cip) +{ + unsigned char *p; + unsigned char pvno; + unsigned char type; + + char aname[ANAME_SZ]; + char inst[INST_SZ]; + char realm[REALM_SZ]; + + u_int32_t kdc_time; + u_int32_t exp_date; + u_int32_t clen; + + p = reply->dat; + + pvno = *p++; + + if (pvno != KRB_PROT_VERSION ) + return INTK_PROT; + + type = *p++; + little_endian = type & 1; + + type &= ~1; + + if(type == AUTH_MSG_ERR_REPLY){ + u_int32_t code; + p += strlen((char*)p) + 1; /* name */ + p += strlen((char*)p) + 1; /* instance */ + p += strlen((char*)p) + 1; /* realm */ + p += 4; /* time */ + p += krb_get_int(p, &code, 4, little_endian); + return code; + } + if(type != AUTH_MSG_KDC_REPLY) + return INTK_PROT; + + p += krb_get_nir(p, aname, inst, realm); + p += krb_get_int(p, &kdc_time, 4, little_endian); + p++; /* number of tickets */ + p += krb_get_int(p, &exp_date, 4, little_endian); + p++; /* master key version number */ + p += krb_get_int(p, &clen, 2, little_endian); + cip->length = clen; + memcpy(cip->dat, p, clen); + p += clen; + + return KSUCCESS; +} |
