diff options
Diffstat (limited to 'contrib/bind9/lib/dns/include/dns/acl.h')
| -rw-r--r-- | contrib/bind9/lib/dns/include/dns/acl.h | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/contrib/bind9/lib/dns/include/dns/acl.h b/contrib/bind9/lib/dns/include/dns/acl.h deleted file mode 100644 index f4fc4a3..0000000 --- a/contrib/bind9/lib/dns/include/dns/acl.h +++ /dev/null @@ -1,239 +0,0 @@ -/* - * Copyright (C) 2004-2007, 2009, 2011 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 1999-2002 Internet Software Consortium. - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH - * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, - * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM - * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE - * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -/* $Id: acl.h,v 1.35 2011/06/17 23:47:49 tbox Exp $ */ - -#ifndef DNS_ACL_H -#define DNS_ACL_H 1 - -/***** - ***** Module Info - *****/ - -/*! \file dns/acl.h - * \brief - * Address match list handling. - */ - -/*** - *** Imports - ***/ - -#include <isc/lang.h> -#include <isc/magic.h> -#include <isc/netaddr.h> -#include <isc/refcount.h> - -#include <dns/name.h> -#include <dns/types.h> -#include <dns/iptable.h> - -/*** - *** Types - ***/ - -typedef enum { - dns_aclelementtype_ipprefix, - dns_aclelementtype_keyname, - dns_aclelementtype_nestedacl, - dns_aclelementtype_localhost, - dns_aclelementtype_localnets, - dns_aclelementtype_any -} dns_aclelemettype_t; - -typedef struct dns_aclipprefix dns_aclipprefix_t; - -struct dns_aclipprefix { - isc_netaddr_t address; /* IP4/IP6 */ - unsigned int prefixlen; -}; - -struct dns_aclelement { - dns_aclelemettype_t type; - isc_boolean_t negative; - dns_name_t keyname; - dns_acl_t *nestedacl; - int node_num; -}; - -struct dns_acl { - unsigned int magic; - isc_mem_t *mctx; - isc_refcount_t refcount; - dns_iptable_t *iptable; -#define node_count iptable->radix->num_added_node - dns_aclelement_t *elements; - isc_boolean_t has_negatives; - unsigned int alloc; /*%< Elements allocated */ - unsigned int length; /*%< Elements initialized */ - char *name; /*%< Temporary use only */ - ISC_LINK(dns_acl_t) nextincache; /*%< Ditto */ -}; - -struct dns_aclenv { - dns_acl_t *localhost; - dns_acl_t *localnets; - isc_boolean_t match_mapped; -}; - -#define DNS_ACL_MAGIC ISC_MAGIC('D','a','c','l') -#define DNS_ACL_VALID(a) ISC_MAGIC_VALID(a, DNS_ACL_MAGIC) - -/*** - *** Functions - ***/ - -ISC_LANG_BEGINDECLS - -isc_result_t -dns_acl_create(isc_mem_t *mctx, int n, dns_acl_t **target); -/*%< - * Create a new ACL, including an IP table and an array with room - * for 'n' ACL elements. The elements are uninitialized and the - * length is 0. - */ - -isc_result_t -dns_acl_any(isc_mem_t *mctx, dns_acl_t **target); -/*%< - * Create a new ACL that matches everything. - */ - -isc_result_t -dns_acl_none(isc_mem_t *mctx, dns_acl_t **target); -/*%< - * Create a new ACL that matches nothing. - */ - -isc_boolean_t -dns_acl_isany(dns_acl_t *acl); -/*%< - * Test whether ACL is set to "{ any; }" - */ - -isc_boolean_t -dns_acl_isnone(dns_acl_t *acl); -/*%< - * Test whether ACL is set to "{ none; }" - */ - -isc_result_t -dns_acl_merge(dns_acl_t *dest, dns_acl_t *source, isc_boolean_t pos); -/*%< - * Merge the contents of one ACL into another. Call dns_iptable_merge() - * for the IP tables, then concatenate the element arrays. - * - * If pos is set to false, then the nested ACL is to be negated. This - * means reverse the sense of each *positive* element or IP table node, - * but leave negatives alone, so as to prevent a double-negative causing - * an unexpected positive match in the parent ACL. - */ - -void -dns_acl_attach(dns_acl_t *source, dns_acl_t **target); -/*%< - * Attach to acl 'source'. - * - * Requires: - *\li 'source' to be a valid acl. - *\li 'target' to be non NULL and '*target' to be NULL. - */ - -void -dns_acl_detach(dns_acl_t **aclp); -/*%< - * Detach the acl. On final detach the acl must not be linked on any - * list. - * - * Requires: - *\li '*aclp' to be a valid acl. - * - * Insists: - *\li '*aclp' is not linked on final detach. - */ - -isc_boolean_t -dns_acl_isinsecure(const dns_acl_t *a); -/*%< - * Return #ISC_TRUE iff the acl 'a' is considered insecure, that is, - * if it contains IP addresses other than those of the local host. - * This is intended for applications such as printing warning - * messages for suspect ACLs; it is not intended for making access - * control decisions. We make no guarantee that an ACL for which - * this function returns #ISC_FALSE is safe. - */ - -isc_result_t -dns_aclenv_init(isc_mem_t *mctx, dns_aclenv_t *env); -/*%< - * Initialize ACL environment, setting up localhost and localnets ACLs - */ - -void -dns_aclenv_copy(dns_aclenv_t *t, dns_aclenv_t *s); - -void -dns_aclenv_destroy(dns_aclenv_t *env); - -isc_result_t -dns_acl_match(const isc_netaddr_t *reqaddr, - const dns_name_t *reqsigner, - const dns_acl_t *acl, - const dns_aclenv_t *env, - int *match, - const dns_aclelement_t **matchelt); -/*%< - * General, low-level ACL matching. This is expected to - * be useful even for weird stuff like the topology and sortlist statements. - * - * Match the address 'reqaddr', and optionally the key name 'reqsigner', - * against 'acl'. 'reqsigner' may be NULL. - * - * If there is a match, '*match' will be set to an integer whose absolute - * value corresponds to the order in which the matching value was inserted - * into the ACL. For a positive match, this value will be positive; for a - * negative match, it will be negative. - * - * If there is no match, *match will be set to zero. - * - * If there is a match in the element list (either positive or negative) - * and 'matchelt' is non-NULL, *matchelt will be pointed to the matching - * element. - * - * Returns: - *\li #ISC_R_SUCCESS Always succeeds. - */ - -isc_boolean_t -dns_aclelement_match(const isc_netaddr_t *reqaddr, - const dns_name_t *reqsigner, - const dns_aclelement_t *e, - const dns_aclenv_t *env, - const dns_aclelement_t **matchelt); -/*%< - * Like dns_acl_match, but matches against the single ACL element 'e' - * rather than a complete ACL, and returns ISC_TRUE iff it matched. - * - * To determine whether the match was positive or negative, the - * caller should examine e->negative. Since the element 'e' may be - * a reference to a named ACL or a nested ACL, a matching element - * returned through 'matchelt' is not necessarily 'e' itself. - */ - -ISC_LANG_ENDDECLS - -#endif /* DNS_ACL_H */ |
