diff options
Diffstat (limited to 'crypto/heimdal/lib/krb5/rd_safe.c')
| -rw-r--r-- | crypto/heimdal/lib/krb5/rd_safe.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/crypto/heimdal/lib/krb5/rd_safe.c b/crypto/heimdal/lib/krb5/rd_safe.c deleted file mode 100644 index fb7cc2d223686..0000000000000 --- a/crypto/heimdal/lib/krb5/rd_safe.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Copyright (c) 1997 - 2000 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. 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 <krb5_locl.h> - -RCSID("$Id: rd_safe.c,v 1.19 2000/02/06 05:20:51 assar Exp $"); - -static krb5_error_code -verify_checksum(krb5_context context, - krb5_auth_context auth_context, - KRB_SAFE *safe) -{ - krb5_error_code ret; - u_char *buf; - size_t buf_size; - size_t len; - Checksum c; - krb5_crypto crypto; - - c = safe->cksum; - safe->cksum.cksumtype = 0; - safe->cksum.checksum.data = NULL; - safe->cksum.checksum.length = 0; - - - buf_size = length_KRB_SAFE(safe); - buf = malloc(buf_size); - - if (buf == NULL) { - ret = ENOMEM; - goto out; - } - - ret = encode_KRB_SAFE (buf + buf_size - 1, - buf_size, - safe, - &len); - krb5_crypto_init(context, auth_context->keyblock, 0, &crypto); - ret = krb5_verify_checksum (context, - crypto, - KRB5_KU_KRB_SAFE_CKSUM, - buf + buf_size - len, - len, - &c); - krb5_crypto_destroy(context, crypto); -out: - safe->cksum = c; - free (buf); - return ret; -} - -krb5_error_code -krb5_rd_safe(krb5_context context, - krb5_auth_context auth_context, - const krb5_data *inbuf, - krb5_data *outbuf, - /*krb5_replay_data*/ void *outdata) -{ - krb5_error_code ret; - KRB_SAFE safe; - size_t len; - - ret = decode_KRB_SAFE (inbuf->data, inbuf->length, &safe, &len); - if (ret) - return ret; - if (safe.pvno != 5) { - ret = KRB5KRB_AP_ERR_BADVERSION; - goto failure; - } - if (safe.msg_type != krb_safe) { - ret = KRB5KRB_AP_ERR_MSG_TYPE; - goto failure; - } - if (!krb5_checksum_is_keyed(context, safe.cksum.cksumtype) - || !krb5_checksum_is_collision_proof(context, safe.cksum.cksumtype)) { - ret = KRB5KRB_AP_ERR_INAPP_CKSUM; - goto failure; - } - - /* check sender address */ - - if (safe.safe_body.s_address - && auth_context->remote_address - && !krb5_address_compare (context, - auth_context->remote_address, - safe.safe_body.s_address)) { - ret = KRB5KRB_AP_ERR_BADADDR; - goto failure; - } - - /* check receiver address */ - - if (safe.safe_body.r_address - && auth_context->local_address - && !krb5_address_compare (context, - auth_context->local_address, - safe.safe_body.r_address)) { - ret = KRB5KRB_AP_ERR_BADADDR; - goto failure; - } - - /* check timestamp */ - if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_TIME) { - krb5_timestamp sec; - - krb5_timeofday (context, &sec); - - if (safe.safe_body.timestamp == NULL || - safe.safe_body.usec == NULL || - abs(*safe.safe_body.timestamp - sec) > context->max_skew) { - ret = KRB5KRB_AP_ERR_SKEW; - goto failure; - } - } - /* XXX - check replay cache */ - - /* check sequence number */ - if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_SEQUENCE) { - if (safe.safe_body.seq_number == NULL || - *safe.safe_body.seq_number != ++auth_context->remote_seqnumber) { - ret = KRB5KRB_AP_ERR_BADORDER; - goto failure; - } - } - - ret = verify_checksum (context, auth_context, &safe); - if (ret) - goto failure; - - outbuf->length = safe.safe_body.user_data.length; - outbuf->data = malloc(outbuf->length); - if (outbuf->data == NULL) { - ret = ENOMEM; - goto failure; - } - memcpy (outbuf->data, safe.safe_body.user_data.data, outbuf->length); - free_KRB_SAFE (&safe); - return 0; -failure: - free_KRB_SAFE (&safe); - return ret; -} |