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val_nsec.h
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1 /*
2  * validator/val_nsec.h - validator NSEC denial of existence functions.
3  *
4  * Copyright (c) 2007, NLnet Labs. All rights reserved.
5  *
6  * This software is open source.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  *
19  * Neither the name of the NLNET LABS nor the names of its contributors may
20  * be used to endorse or promote products derived from this software without
21  * specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 
44 #ifndef VALIDATOR_VAL_NSEC_H
45 #define VALIDATOR_VAL_NSEC_H
46 #include "util/data/packed_rrset.h"
47 struct val_env;
48 struct module_env;
49 struct module_qstate;
50 struct ub_packed_rrset_key;
51 struct reply_info;
52 struct query_info;
53 struct key_entry_key;
54 
76  struct val_env* ve, struct query_info* qinfo,
77  struct reply_info* rep, struct key_entry_key* kkey,
78  time_t* proof_ttl, char** reason, struct module_qstate* qstate);
79 
88 int nsecbitmap_has_type_rdata(uint8_t* bitmap, size_t len, uint16_t type);
89 
98 int nsec_has_type(struct ub_packed_rrset_key* nsec, uint16_t type);
99 
115 int nsec_proves_nodata(struct ub_packed_rrset_key* nsec,
116  struct query_info* qinfo, uint8_t** wc);
117 
127  uint8_t* qname);
128 
137  struct query_info* qinf, uint8_t* wc);
138 
148  struct ub_packed_rrset_key* nsec);
149 
158 int val_nsec_proves_no_wc(struct ub_packed_rrset_key* nsec, uint8_t* qname,
159  size_t qnamelen);
160 
171 int val_nsec_check_dlv(struct query_info* qinfo,
172  struct reply_info* rep, uint8_t** nm, size_t* nm_len);
173 
182  struct query_info* qinfo);
183 
184 #endif /* VALIDATOR_VAL_NSEC_H */
int nsecbitmap_has_type_rdata(uint8_t *bitmap, size_t len, uint16_t type)
int val_nsec_proves_name_error(struct ub_packed_rrset_key *nsec, uint8_t *qname)
unsigned short uint16_t
Definition: stdint.h:125
unsigned char uint8_t
Definition: stdint.h:124
int nsec_has_type(struct ub_packed_rrset_key *nsec, uint16_t type)
int val_nsec_check_dlv(struct query_info *qinfo, struct reply_info *rep, uint8_t **nm, size_t *nm_len)
sec_status
Definition: packed_rrset.h:176
uint8_t * nsec_closest_encloser(uint8_t *qname, struct ub_packed_rrset_key *nsec)
enum sec_status val_nsec_prove_nodata_dsreply(struct module_env *env, struct val_env *ve, struct query_info *qinfo, struct reply_info *rep, struct key_entry_key *kkey, time_t *proof_ttl, char **reason, struct module_qstate *qstate)
int val_nsec_proves_insecuredelegation(struct ub_packed_rrset_key *nsec, struct query_info *qinfo)
int nsec_proves_nodata(struct ub_packed_rrset_key *nsec, struct query_info *qinfo, uint8_t **wc)
int val_nsec_proves_positive_wildcard(struct ub_packed_rrset_key *nsec, struct query_info *qinf, uint8_t *wc)
int val_nsec_proves_no_wc(struct ub_packed_rrset_key *nsec, uint8_t *qname, size_t qnamelen)
Definition: val_kentry.h:55