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usr / src / crypto / heimdal / lib / krb5 /

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📄 Makefile.am(7.68 KB)
📄 Makefile.in(224.98 KB)
📄 acache.c(26.87 KB)
📄 acl.c(7.58 KB)
📄 add_et_list.c(2.2 KB)
📄 addr_families.c(38.89 KB)
📄 aes-test.c(22.56 KB)
📄 aname_to_localname.c(2.83 KB)
📄 appdefault.c(4.41 KB)
📄 asn1_glue.c(2.37 KB)
📄 auth_context.c(14.97 KB)
📄 build_ap_req.c(2.77 KB)
📄 build_auth.c(5.5 KB)
📄 cache.c(41.88 KB)
📄 ccache_plugin.h(1.67 KB)
📄 changepw.c(20.59 KB)
📄 codec.c(6.1 KB)
📄 config_file.c(31.7 KB)
📄 constants.c(2.51 KB)
📄 context.c(37.71 KB)
📄 convert_creds.c(3.46 KB)
📄 copy_host_realm.c(2.66 KB)
📄 crc.c(2.19 KB)
📄 creds.c(8.75 KB)
📄 crypto-aes.c(4.62 KB)
📄 crypto-algs.c(3.04 KB)
📄 crypto-arcfour.c(8.78 KB)
📄 crypto-des-common.c(4.37 KB)
📄 crypto-des.c(8.8 KB)
📄 crypto-des3.c(5.36 KB)
📄 crypto-evp.c(5.45 KB)
📄 crypto-null.c(2.55 KB)
📄 crypto-pk.c(8.4 KB)
📄 crypto-rand.c(3.43 KB)
📄 crypto-stubs.c(3.1 KB)
📄 crypto.c(66.51 KB)
📄 crypto.h(6.5 KB)
📄 data.c(5.66 KB)
📄 deprecated.c(14.72 KB)
📄 derived-key-test.c(6.48 KB)
📄 digest.c(31.6 KB)
📄 doxygen.c(25.72 KB)
📄 eai_to_heim_errno.c(3.46 KB)
📄 error_string.c(8.93 KB)
📄 expand_hostname.c(5.59 KB)
📄 expand_path.c(12.35 KB)
📄 fcache.c(25.36 KB)
📄 free.c(2.01 KB)
📄 free_host_realm.c(2.1 KB)
📄 generate_seq_number.c(2.03 KB)
📄 generate_subkey.c(2.6 KB)
📄 get_addrs.c(8.2 KB)
📄 get_cred.c(38.45 KB)
📄 get_default_principal.c(4.47 KB)
📄 get_default_realm.c(2.74 KB)
📄 get_for_creds.c(13.48 KB)
📄 get_host_realm.c(7.06 KB)
📄 get_in_tkt.c(14.45 KB)
📄 get_port.c(2.04 KB)
📄 heim_err.et(1.7 KB)
📄 init_creds.c(12.11 KB)
📄 init_creds_pw.c(52.57 KB)
📄 k524_err.et(577 B)
📄 kcm.c(26.55 KB)
📄 kcm.h(2.83 KB)
📄 kerberos.8(4.14 KB)
📄 keyblock.c(5.31 KB)
📄 keytab.c(23.88 KB)
📄 keytab_any.c(6.48 KB)
📄 keytab_file.c(19.7 KB)
📄 keytab_keyfile.c(10.74 KB)
📄 keytab_memory.c(6.29 KB)
📄 krb5-private.h(12.91 KB)
📄 krb5-protos.h(113.43 KB)
📄 krb5-v4compat.h(4.44 KB)
📄 krb5.conf.5(18.31 KB)
📄 krb5.h(29.75 KB)
📄 krb5.moduli(1.11 KB)
📄 krb524_convert_creds_kdc.3(3.12 KB)
📄 krb5_425_conv_principal.3(7.02 KB)
📄 krb5_acl_match_file.3(3.49 KB)
📄 krb5_aname_to_localname.3(2.87 KB)
📄 krb5_appdefault.3(3.08 KB)
📄 krb5_auth_context.3(10.8 KB)
📄 krb5_c_make_checksum.3(6.92 KB)
📄 krb5_ccapi.h(7.52 KB)
📄 krb5_check_transited.3(3.28 KB)
📄 krb5_create_checksum.3(6.02 KB)
📄 krb5_creds.3(3.31 KB)
📄 krb5_digest.3(6.57 KB)
📄 krb5_eai_to_heim_errno.3(2.4 KB)
📄 krb5_encrypt.3(7 KB)
📄 krb5_err.et(12.86 KB)
📄 krb5_find_padata.3(2.53 KB)
📄 krb5_generate_random_block.3(2.1 KB)
📄 krb5_get_all_client_addrs.3(2.83 KB)
📄 krb5_get_credentials.3(5.03 KB)
📄 krb5_get_creds.3(5.28 KB)
📄 krb5_get_forwarded_creds.3(2.74 KB)
📄 krb5_get_in_cred.3(7.46 KB)
📄 krb5_get_init_creds.3(11.03 KB)
📄 krb5_get_krbhst.3(3.26 KB)
📄 krb5_getportbyname.3(2.32 KB)
📄 krb5_init_context.3(7.88 KB)
📄 krb5_is_thread_safe.3(2.24 KB)
📄 krb5_krbhst_init.3(5.67 KB)
📄 krb5_locl.h(8.47 KB)
📄 krb5_mk_req.3(5.18 KB)
📄 krb5_mk_safe.3(2.78 KB)
📄 krb5_openlog.3(7.96 KB)
📄 krb5_parse_name.3(2.57 KB)
📄 krb5_principal.3(11.85 KB)
📄 krb5_rcache.3(4.21 KB)
📄 krb5_rd_error.3(3.33 KB)
📄 krb5_rd_safe.3(2.77 KB)
📄 krb5_set_default_realm.3(4.29 KB)
📄 krb5_set_password.3(4.11 KB)
📄 krb5_string_to_key.3(4.39 KB)
📄 krb5_timeofday.3(3.33 KB)
📄 krb5_verify_init_creds.3(3.51 KB)
📄 krb5_verify_user.3(6.71 KB)
📄 krb_err.et(2.55 KB)
📄 krbhst-test.c(3.02 KB)
📄 krbhst.c(26.94 KB)
📄 kuserok.c(8.14 KB)
📄 locate_plugin.h(2.36 KB)
📄 log.c(11.94 KB)
📄 mcache.c(11.54 KB)
📄 misc.c(3.9 KB)
📄 mit_glue.c(11.14 KB)
📄 mk_error.c(3.23 KB)
📄 mk_priv.c(4.54 KB)
📄 mk_rep.c(3.99 KB)
📄 mk_req.c(3.58 KB)
📄 mk_req_ext.c(4.78 KB)
📄 mk_safe.c(4.36 KB)
📄 n-fold-test.c(4.14 KB)
📄 n-fold.c(3.8 KB)
📄 net_read.c(1.86 KB)
📄 net_write.c(3.05 KB)
📄 pac.c(28.37 KB)
📄 padata.c(2.35 KB)
📄 parse-name-test.c(5.81 KB)
📄 pcache.c(2.33 KB)
📄 pkinit.c(63.8 KB)
📄 plugin.c(13.71 KB)
📄 principal.c(28.4 KB)
📄 prog_setup.c(2.34 KB)
📄 prompter_posix.c(2.45 KB)
📄 rd_cred.c(9.44 KB)
📄 rd_error.c(3.83 KB)
📄 rd_priv.c(5.38 KB)
📄 rd_rep.c(3.72 KB)
📄 rd_req.c(25.6 KB)
📄 rd_safe.c(6.34 KB)
📄 read_message.c(3.22 KB)
📄 recvauth.c(6.16 KB)
📄 replay.c(8.24 KB)
📄 salt-aes.c(3.34 KB)
📄 salt-arcfour.c(3.24 KB)
📄 salt-des.c(6.68 KB)
📄 salt-des3.c(4.36 KB)
📄 salt.c(9 KB)
📄 scache.c(32.86 KB)
📄 send_to_kdc.c(16.06 KB)
📄 send_to_kdc_plugin.h(2.22 KB)
📄 sendauth.c(6.12 KB)
📄 set_default_realm.c(3.01 KB)
📄 sock_principal.c(2.52 KB)
📄 store-int.c(2.14 KB)
📄 store-int.h(2.07 KB)
📄 store-test.c(3.63 KB)
📄 store.c(35.77 KB)
📄 store_emem.c(5.06 KB)
📄 store_fd.c(3.4 KB)
📄 store_mem.c(5.42 KB)
📄 string-to-key-test.c(5.75 KB)
📄 test_acl.c(4.56 KB)
📄 test_addr.c(7.27 KB)
📄 test_alname.c(4.28 KB)
📄 test_cc.c(19.39 KB)
📄 test_config.c(7.92 KB)
📄 test_crypto.c(5.68 KB)
📄 test_crypto_wrapping.c(4.48 KB)
📄 test_forward.c(3.64 KB)
📄 test_get_addrs.c(3.21 KB)
📄 test_hostname.c(3.82 KB)
📄 test_keytab.c(7.42 KB)
📄 test_kuserok.c(2.9 KB)
📄 test_mem.c(2.21 KB)
📄 test_pac.c(15.1 KB)
📄 test_pkinit_dh2key.c(6.9 KB)
📄 test_plugin.c(3.4 KB)
📄 test_prf.c(3.21 KB)
📄 test_princ.c(10.44 KB)
📄 test_renew.c(3.22 KB)
📄 test_store.c(7.96 KB)
📄 test_time.c(2.57 KB)
📄 ticket.c(21.91 KB)
📄 time.c(3.84 KB)
📄 transited.c(11.11 KB)
📄 verify_init.c(6.47 KB)
📄 verify_krb5_conf.8(3.41 KB)
📄 verify_krb5_conf.c(20.63 KB)
📄 verify_user.c(7 KB)
📄 version-script.map(18.82 KB)
📄 version.c(1.71 KB)
📄 warn.c(8.98 KB)
📄 write_message.c(2.87 KB)

Editing: rd_cred.c

/*
 * Copyright (c) 1997 - 2007 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"

static krb5_error_code
compare_addrs(krb5_context context,
	      krb5_address *a,
	      krb5_address *b,
	      const char *message)
{
    char a_str[64], b_str[64];
    size_t len;

if(krb5_address_compare (context, a, b))
	return 0;

krb5_print_address (a, a_str, sizeof(a_str), &len);
    krb5_print_address (b, b_str, sizeof(b_str), &len);
    krb5_set_error_message(context, KRB5KRB_AP_ERR_BADADDR,
			   "%s: %s != %s", message, b_str, a_str);
    return KRB5KRB_AP_ERR_BADADDR;
}

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_rd_cred(krb5_context context,
	     krb5_auth_context auth_context,
	     krb5_data *in_data,
	     krb5_creds ***ret_creds,
	     krb5_replay_data *outdata)
{
    krb5_error_code ret;
    size_t len;
    KRB_CRED cred;
    EncKrbCredPart enc_krb_cred_part;
    krb5_data enc_krb_cred_part_data;
    krb5_crypto crypto;
    size_t i;

memset(&enc_krb_cred_part, 0, sizeof(enc_krb_cred_part));
    krb5_data_zero(&enc_krb_cred_part_data);

if ((auth_context->flags &
	 (KRB5_AUTH_CONTEXT_RET_TIME | KRB5_AUTH_CONTEXT_RET_SEQUENCE)) &&
	outdata == NULL)
	return KRB5_RC_REQUIRED; /* XXX better error, MIT returns this */

*ret_creds = NULL;

ret = decode_KRB_CRED(in_data->data, in_data->length,
			  &cred, &len);
    if(ret) {
	krb5_clear_error_message(context);
	return ret;
    }

if (cred.pvno != 5) {
	ret = KRB5KRB_AP_ERR_BADVERSION;
	krb5_clear_error_message (context);
	goto out;
    }

if (cred.msg_type != krb_cred) {
	ret = KRB5KRB_AP_ERR_MSG_TYPE;
	krb5_clear_error_message (context);
	goto out;
    }

if (cred.enc_part.etype == ETYPE_NULL) {
	/* DK: MIT GSS-API Compatibility */
	enc_krb_cred_part_data.length = cred.enc_part.cipher.length;
	enc_krb_cred_part_data.data   = cred.enc_part.cipher.data;
    } else {
	/* Try both subkey and session key.
	 *
	 * RFC4120 claims we should use the session key, but Heimdal
	 * before 0.8 used the remote subkey if it was send in the
	 * auth_context.
	 */

if (auth_context->remote_subkey) {
	    ret = krb5_crypto_init(context, auth_context->remote_subkey,
				   0, &crypto);
	    if (ret)
		goto out;

ret = krb5_decrypt_EncryptedData(context,
					     crypto,
					     KRB5_KU_KRB_CRED,
					     &cred.enc_part,
					     &enc_krb_cred_part_data);

krb5_crypto_destroy(context, crypto);
	}

/*
	 * If there was not subkey, or we failed using subkey,
	 * retry using the session key
	 */
	if (auth_context->remote_subkey == NULL || ret == KRB5KRB_AP_ERR_BAD_INTEGRITY)
	{

ret = krb5_crypto_init(context, auth_context->keyblock,
				   0, &crypto);

if (ret)
		goto out;

ret = krb5_decrypt_EncryptedData(context,
					     crypto,
					     KRB5_KU_KRB_CRED,
					     &cred.enc_part,
					     &enc_krb_cred_part_data);

krb5_crypto_destroy(context, crypto);
	}
	if (ret)
	    goto out;
    }

ret = decode_EncKrbCredPart(enc_krb_cred_part_data.data,
				enc_krb_cred_part_data.length,
				&enc_krb_cred_part,
				&len);
    if (enc_krb_cred_part_data.data != cred.enc_part.cipher.data)
	krb5_data_free(&enc_krb_cred_part_data);
    if (ret) {
	krb5_set_error_message(context, ret,
			       N_("Failed to decode "
				  "encrypte credential part", ""));
	goto out;
    }

/* check sender address */

if (enc_krb_cred_part.s_address
	&& auth_context->remote_address
	&& auth_context->remote_port) {
	krb5_address *a;

ret = krb5_make_addrport (context, &a,
				  auth_context->remote_address,
				  auth_context->remote_port);
	if (ret)
	    goto out;

ret = compare_addrs(context, a, enc_krb_cred_part.s_address,
			    N_("sender address is wrong "
			       "in received creds", ""));
	krb5_free_address(context, a);
	free(a);
	if(ret)
	    goto out;
    }

/* check receiver address */

if (enc_krb_cred_part.r_address
	&& auth_context->local_address) {
	if(auth_context->local_port &&
	   enc_krb_cred_part.r_address->addr_type == KRB5_ADDRESS_ADDRPORT) {
	    krb5_address *a;
	    ret = krb5_make_addrport (context, &a,
				      auth_context->local_address,
				      auth_context->local_port);
	    if (ret)
		goto out;

ret = compare_addrs(context, a, enc_krb_cred_part.r_address,
				N_("receiver address is wrong "
				   "in received creds", ""));
	    krb5_free_address(context, a);
	    free(a);
	    if(ret)
		goto out;
	} else {
	    ret = compare_addrs(context, auth_context->local_address,
				enc_krb_cred_part.r_address,
				N_("receiver address is wrong "
				   "in received creds", ""));
	    if(ret)
		goto out;
	}
    }

/* check timestamp */
    if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_TIME) {
	krb5_timestamp sec;

krb5_timeofday (context, &sec);

if (enc_krb_cred_part.timestamp == NULL ||
	    enc_krb_cred_part.usec      == NULL ||
	    abs(*enc_krb_cred_part.timestamp - sec)
	    > context->max_skew) {
	    krb5_clear_error_message (context);
	    ret = KRB5KRB_AP_ERR_SKEW;
	    goto out;
	}
    }

if ((auth_context->flags &
	 (KRB5_AUTH_CONTEXT_RET_TIME | KRB5_AUTH_CONTEXT_RET_SEQUENCE))) {
	/* if these fields are not present in the cred-part, silently
           return zero */
	memset(outdata, 0, sizeof(*outdata));
	if(enc_krb_cred_part.timestamp)
	    outdata->timestamp = *enc_krb_cred_part.timestamp;
	if(enc_krb_cred_part.usec)
	    outdata->usec = *enc_krb_cred_part.usec;
	if(enc_krb_cred_part.nonce)
	    outdata->seq = *enc_krb_cred_part.nonce;
    }

/* Convert to NULL terminated list of creds */

*ret_creds = calloc(enc_krb_cred_part.ticket_info.len + 1,
			sizeof(**ret_creds));

if (*ret_creds == NULL) {
	ret = ENOMEM;
	krb5_set_error_message(context, ret,
			       N_("malloc: out of memory", ""));
	goto out;
    }

for (i = 0; i < enc_krb_cred_part.ticket_info.len; ++i) {
	KrbCredInfo *kci = &enc_krb_cred_part.ticket_info.val[i];
	krb5_creds *creds;

creds = calloc(1, sizeof(*creds));
	if(creds == NULL) {
	    ret = ENOMEM;
	    krb5_set_error_message(context, ret,
				   N_("malloc: out of memory", ""));
	    goto out;
	}

ASN1_MALLOC_ENCODE(Ticket, creds->ticket.data, creds->ticket.length,
			   &cred.tickets.val[i], &len, ret);
	if (ret) {
	    free(creds);
	    goto out;
	}
	if(creds->ticket.length != len)
	    krb5_abortx(context, "internal error in ASN.1 encoder");
	copy_EncryptionKey (&kci->key, &creds->session);
	if (kci->prealm && kci->pname)
	    _krb5_principalname2krb5_principal (context,
						&creds->client,
						*kci->pname,
						*kci->prealm);
	if (kci->flags)
	    creds->flags.b = *kci->flags;
	if (kci->authtime)
	    creds->times.authtime = *kci->authtime;
	if (kci->starttime)
	    creds->times.starttime = *kci->starttime;
	if (kci->endtime)
	    creds->times.endtime = *kci->endtime;
	if (kci->renew_till)
	    creds->times.renew_till = *kci->renew_till;
	if (kci->srealm && kci->sname)
	    _krb5_principalname2krb5_principal (context,
						&creds->server,
						*kci->sname,
						*kci->srealm);
	if (kci->caddr)
	    krb5_copy_addresses (context,
				 kci->caddr,
				 &creds->addresses);

(*ret_creds)[i] = creds;

}
    (*ret_creds)[i] = NULL;

free_KRB_CRED (&cred);
    free_EncKrbCredPart(&enc_krb_cred_part);

return 0;

out:
    free_EncKrbCredPart(&enc_krb_cred_part);
    free_KRB_CRED (&cred);
    if(*ret_creds) {
	for(i = 0; (*ret_creds)[i]; i++)
	    krb5_free_creds(context, (*ret_creds)[i]);
	free(*ret_creds);
	*ret_creds = NULL;
    }
    return ret;
}

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_rd_cred2 (krb5_context      context,
	       krb5_auth_context auth_context,
	       krb5_ccache       ccache,
	       krb5_data         *in_data)
{
    krb5_error_code ret;
    krb5_creds **creds;
    int i;

ret = krb5_rd_cred(context, auth_context, in_data, &creds, NULL);
    if(ret)
	return ret;

/* Store the creds in the ccache */

for(i = 0; creds && creds[i]; i++) {
	krb5_cc_store_cred(context, ccache, creds[i]);
	krb5_free_creds(context, creds[i]);
    }
    free(creds);
    return 0;
}

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