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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: transited.c

/*
 * Copyright (c) 1997 - 2001, 2003 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"

/* this is an attempt at one of the most horrible `compression'
   schemes that has ever been invented; it's so amazingly brain-dead
   that words can not describe it, and all this just to save a few
   silly bytes */

struct tr_realm {
    char *realm;
    unsigned leading_space:1;
    unsigned leading_slash:1;
    unsigned trailing_dot:1;
    struct tr_realm *next;
};

static void
free_realms(struct tr_realm *r)
{
    struct tr_realm *p;
    while(r){
	p = r;
	r = r->next;
	free(p->realm);
	free(p);
    }
}

static int
make_path(krb5_context context, struct tr_realm *r,
	  const char *from, const char *to)
{
    struct tr_realm *tmp;
    const char *p;

if(strlen(from) < strlen(to)){
	const char *str;
	str = from;
	from = to;
	to = str;
    }

if(strcmp(from + strlen(from) - strlen(to), to) == 0){
	p = from;
	while(1){
	    p = strchr(p, '.');
	    if(p == NULL) {
		krb5_clear_error_message (context);
		return KRB5KDC_ERR_POLICY;
	    }
	    p++;
	    if(strcmp(p, to) == 0)
		break;
	    tmp = calloc(1, sizeof(*tmp));
	    if(tmp == NULL)
		return krb5_enomem(context);
	    tmp->next = r->next;
	    r->next = tmp;
	    tmp->realm = strdup(p);
	    if(tmp->realm == NULL){
		r->next = tmp->next;
		free(tmp);
		return krb5_enomem(context);
	    }
	}
    }else if(strncmp(from, to, strlen(to)) == 0){
	p = from + strlen(from);
	while(1){
	    while(p >= from && *p != '/') p--;
	    if(p == from)
		return KRB5KDC_ERR_POLICY;

if(strncmp(to, from, p - from) == 0)
		break;
	    tmp = calloc(1, sizeof(*tmp));
	    if(tmp == NULL)
		return krb5_enomem(context);
	    tmp->next = r->next;
	    r->next = tmp;
	    tmp->realm = malloc(p - from + 1);
	    if(tmp->realm == NULL){
		r->next = tmp->next;
		free(tmp);
		return krb5_enomem(context);
	    }
	    memcpy(tmp->realm, from, p - from);
	    tmp->realm[p - from] = '\0';
	    p--;
	}
    } else {
	krb5_clear_error_message (context);
	return KRB5KDC_ERR_POLICY;
    }

return 0;
}

static int
make_paths(krb5_context context,
	   struct tr_realm *realms, const char *client_realm,
	   const char *server_realm)
{
    struct tr_realm *r;
    int ret;
    const char *prev_realm = client_realm;
    const char *next_realm = NULL;
    for(r = realms; r; r = r->next){
	/* it *might* be that you can have more than one empty
	   component in a row, at least that's how I interpret the
	   "," exception in 1510 */
	if(r->realm[0] == '\0'){
	    while(r->next && r->next->realm[0] == '\0')
		r = r->next;
	    if(r->next)
		next_realm = r->next->realm;
	    else
		next_realm = server_realm;
	    ret = make_path(context, r, prev_realm, next_realm);
	    if(ret){
		free_realms(realms);
		return ret;
	    }
	}
	prev_realm = r->realm;
    }
    return 0;
}

static int
expand_realms(krb5_context context,
	      struct tr_realm *realms, const char *client_realm)
{
    struct tr_realm *r;
    const char *prev_realm = NULL;
    for(r = realms; r; r = r->next){
	if(r->trailing_dot){
	    char *tmp;
	    size_t len;

if(prev_realm == NULL)
		prev_realm = client_realm;

len = strlen(r->realm) + strlen(prev_realm) + 1;

tmp = realloc(r->realm, len);
	    if(tmp == NULL){
		free_realms(realms);
		return krb5_enomem(context);
	    }
	    r->realm = tmp;
	    strlcat(r->realm, prev_realm, len);
	}else if(r->leading_slash && !r->leading_space && prev_realm){
	    /* yet another exception: if you use x500-names, the
               leading realm doesn't have to be "quoted" with a space */
	    char *tmp;
	    size_t len = strlen(r->realm) + strlen(prev_realm) + 1;

tmp = malloc(len);
	    if(tmp == NULL){
		free_realms(realms);
		return krb5_enomem(context);
	    }
	    strlcpy(tmp, prev_realm, len);
	    strlcat(tmp, r->realm, len);
	    free(r->realm);
	    r->realm = tmp;
	}
	prev_realm = r->realm;
    }
    return 0;
}

static struct tr_realm *
make_realm(char *realm)
{
    struct tr_realm *r;
    char *p, *q;
    int quote = 0;
    r = calloc(1, sizeof(*r));
    if(r == NULL){
	free(realm);
	return NULL;
    }
    r->realm = realm;
    for(p = q = r->realm; *p; p++){
	if(p == r->realm && *p == ' '){
	    r->leading_space = 1;
	    continue;
	}
	if(q == r->realm && *p == '/')
	    r->leading_slash = 1;
	if(quote){
	    *q++ = *p;
	    quote = 0;
	    continue;
	}
	if(*p == '\\'){
	    quote = 1;
	    continue;
	}
	if(p[0] == '.' && p[1] == '\0')
	    r->trailing_dot = 1;
	*q++ = *p;
    }
    *q = '\0';
    return r;
}

static struct tr_realm*
append_realm(struct tr_realm *head, struct tr_realm *r)
{
    struct tr_realm *p;
    if(head == NULL){
	r->next = NULL;
	return r;
    }
    p = head;
    while(p->next) p = p->next;
    p->next = r;
    return head;
}

static int
decode_realms(krb5_context context,
	      const char *tr, int length, struct tr_realm **realms)
{
    struct tr_realm *r = NULL;

char *tmp;
    int quote = 0;
    const char *start = tr;
    int i;

for(i = 0; i < length; i++){
	if(quote){
	    quote = 0;
	    continue;
	}
	if(tr[i] == '\\'){
	    quote = 1;
	    continue;
	}
	if(tr[i] == ','){
	    tmp = malloc(tr + i - start + 1);
	    if(tmp == NULL)
		return krb5_enomem(context);
	    memcpy(tmp, start, tr + i - start);
	    tmp[tr + i - start] = '\0';
	    r = make_realm(tmp);
	    if(r == NULL){
		free_realms(*realms);
		return krb5_enomem(context);
	    }
	    *realms = append_realm(*realms, r);
	    start = tr + i + 1;
	}
    }
    tmp = malloc(tr + i - start + 1);
    if(tmp == NULL){
	free(*realms);
	return krb5_enomem(context);
    }
    memcpy(tmp, start, tr + i - start);
    tmp[tr + i - start] = '\0';
    r = make_realm(tmp);
    if(r == NULL){
	free_realms(*realms);
	return krb5_enomem(context);
    }
    *realms = append_realm(*realms, r);

return 0;
}

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_domain_x500_decode(krb5_context context,
			krb5_data tr, char ***realms, unsigned int *num_realms,
			const char *client_realm, const char *server_realm)
{
    struct tr_realm *r = NULL;
    struct tr_realm *p, **q;
    int ret;

if(tr.length == 0) {
	*realms = NULL;
	*num_realms = 0;
	return 0;
    }

/* split string in components */
    ret = decode_realms(context, tr.data, tr.length, &r);
    if(ret)
	return ret;

/* apply prefix rule */
    ret = expand_realms(context, r, client_realm);
    if(ret)
	return ret;

ret = make_paths(context, r, client_realm, server_realm);
    if(ret)
	return ret;

/* remove empty components and count realms */
    *num_realms = 0;
    for(q = &r; *q; ){
	if((*q)->realm[0] == '\0'){
	    p = *q;
	    *q = (*q)->next;
	    free(p->realm);
	    free(p);
	}else{
	    q = &(*q)->next;
	    (*num_realms)++;
	}
    }
    if (*num_realms + 1 > UINT_MAX/sizeof(**realms))
	return ERANGE;

{
	char **R;
	R = malloc((*num_realms + 1) * sizeof(*R));
	if (R == NULL)
	    return krb5_enomem(context);
	*realms = R;
	while(r){
	    *R++ = r->realm;
	    p = r->next;
	    free(r);
	    r = p;
	}
    }
    return 0;
}

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_domain_x500_encode(char **realms, unsigned int num_realms,
			krb5_data *encoding)
{
    char *s = NULL;
    int len = 0;
    unsigned int i;
    krb5_data_zero(encoding);
    if (num_realms == 0)
	return 0;
    for(i = 0; i < num_realms; i++){
	len += strlen(realms[i]);
	if(realms[i][0] == '/')
	    len++;
    }
    len += num_realms - 1;
    s = malloc(len + 1);
    if (s == NULL)
	return ENOMEM;
    *s = '\0';
    for(i = 0; i < num_realms; i++){
	if(i)
	    strlcat(s, ",", len + 1);
	if(realms[i][0] == '/')
	    strlcat(s, " ", len + 1);
	strlcat(s, realms[i], len + 1);
    }
    encoding->data = s;
    encoding->length = strlen(s);
    return 0;
}

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_check_transited(krb5_context context,
		     krb5_const_realm client_realm,
		     krb5_const_realm server_realm,
		     krb5_realm *realms,
		     unsigned int num_realms,
		     int *bad_realm)
{
    char **tr_realms;
    char **p;
    size_t i;

if(num_realms == 0)
	return 0;

tr_realms = krb5_config_get_strings(context, NULL,
					"capaths",
					client_realm,
					server_realm,
					NULL);
    for(i = 0; i < num_realms; i++) {
	for(p = tr_realms; p && *p; p++) {
	    if(strcmp(*p, realms[i]) == 0)
		break;
	}
	if(p == NULL || *p == NULL) {
	    krb5_config_free_strings(tr_realms);
	    krb5_set_error_message (context, KRB5KRB_AP_ERR_ILL_CR_TKT,
				    N_("no transit allowed "
				       "through realm %s", ""),
				    realms[i]);
	    if(bad_realm)
		*bad_realm = i;
	    return KRB5KRB_AP_ERR_ILL_CR_TKT;
	}
    }
    krb5_config_free_strings(tr_realms);
    return 0;
}

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_check_transited_realms(krb5_context context,
			    const char *const *realms,
			    unsigned int num_realms,
			    int *bad_realm)
{
    size_t i;
    int ret = 0;
    char **bad_realms = krb5_config_get_strings(context, NULL,
						"libdefaults",
						"transited_realms_reject",
						NULL);
    if(bad_realms == NULL)
	return 0;

for(i = 0; i < num_realms; i++) {
	char **p;
	for(p = bad_realms; *p; p++)
	    if(strcmp(*p, realms[i]) == 0) {
		ret = KRB5KRB_AP_ERR_ILL_CR_TKT;
		krb5_set_error_message (context, ret,
					N_("no transit allowed "
					   "through realm %s", ""),
					*p);
		if(bad_realm)
		    *bad_realm = i;
		break;
	    }
    }
    krb5_config_free_strings(bad_realms);
    return ret;
}

#if 0
int
main(int argc, char **argv)
{
    krb5_data x;
    char **r;
    int num, i;
    x.data = argv[1];
    x.length = strlen(x.data);
    if(domain_expand(x, &r, &num, argv[2], argv[3]))
	exit(1);
    for(i = 0; i < num; i++)
	printf("%s\n", r[i]);
    return 0;
}
#endif

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