LDNS_DANE_SELECT_CERTIFICATE(3) - Linux man page online | Library functions


30 May 2006
ldns(3) Library Functions Manual ldns(3)


ldns_dane_create_tlsa_rr, ldns_dane_create_tlsa_owner, ldns_dane_cert2rdf, ldns_dane_select_certificate - TLSA RR creation functions


#include <stdint.h> #include <stdbool.h> #include <ldns/ldns.h> ldns_status ldns_dane_create_tlsa_rr(ldns_rr** tlsa, ldns_tlsa_certificate_usage certifi‐ cate_usage, ldns_tlsa_selector selector, ldns_tlsa_matching_type matching_type, X509* cert); ldns_status ldns_dane_create_tlsa_owner(ldns_rdf** tlsa_owner, const ldns_rdf* name, uint16_t port, ldns_dane_transport transport); ldns_status ldns_dane_cert2rdf(ldns_rdf** rdf, X509* cert, ldns_tlsa_selector selector, ldns_tlsa_matching_type matching_type); ldns_status ldns_dane_select_certificate(X509** selected_cert, X509* cert, STACK_OF(X509)* extra_certs, X509_STORE* pkix_validation_store, ldns_tlsa_certificate_usage cert_usage, int index);


ldns_dane_create_tlsa_rr() Creates a TLSA resource record from the certificate. No PKIX validation is performed! The given certificate is used as data regardless the value of certificate_usage. tlsa: The created TLSA resource record. certificate_usage: The value for the Certificate Usage field selector: The value for the Selector field matching_type: The value for the Matching Type field cert: The certificate which data will be represented Returns LDNS_STATUS_OK on success or an error code otherwise. ldns_dane_create_tlsa_owner() Creates a dname consisting of the given name, prefixed by the service port and type of transport: _<EM>port</EM>._<EM>transport</EM>.<‐ EM>name</EM>. tlsa_owner: The created dname. name: The dname that should be prefixed. port: The service port number for wich the name should be created. transport: The transport for which the name should be created. Returns LDNS_STATUS_OK on success or an error code otherwise. ldns_dane_cert2rdf() Creates a LDNS_RDF_TYPE_HEX type rdf based on the binary data chosen by the selector and encoded using matching_type. rdf: The created created rdf of type LDNS_RDF_TYPE_HEX. cert: The certificate from which the data is selected selector: The full certificate or the public key matching_type: The full data or the SHA256 or SHA512 hash of the selected data Returns LDNS_STATUS_OK on success or an error code otherwise. ldns_dane_select_certificate() Selects the certificate from cert, extra_certs or the pkix_validation_store based on the value of cert_usage and index. selected_cert: The selected cert. cert: The certificate to validate (or not) extra_certs: Intermediate certificates that might be necessary during validation. May be NULL, except when the certificate usage is "Trust Anchor Assertion" because the trust anchor has to be provided.(otherwise choose a "Domain issued certifi‐ cate!" pkix_validation_store: Used when the certificate usage is "CA constraint" or "Ser‐ vice Certificate Constraint" to validate the certificate and, in case of "CA con‐ straint", select the CA. When pkix_validation_store is NULL, validation is explic‐ itly turned off and the behaviour is then the same as for "Trust anchor assertion" and "Domain issued certificate" respectively. cert_usage: Which certificate to use and how to validate. index: Used to select the trust anchor when certificate usage is "Trust Anchor Assertion". 0 is the last certificate in the validation chain. 1 the one but last, etc. When index is -1, the last certificate is used that MUST be self-signed. This can help to make sure that the intended (self signed) trust anchor is actually present in extra_certs (which is a DANE requirement). Returns LDNS_STATUS_OK on success or an error code otherwise.


The ldns team at NLnet Labs. Which consists out of Jelte Jansen and Miek Gieben.


Please report bugs to or in our bugzilla at http://www.nlnet‐
Copyright (c) 2004 - 2006 NLnet Labs. Licensed under the BSD License. There is NO warranty; not even for MERCHANTABILITY or FIT‐ NESS FOR A PARTICULAR PURPOSE.


ldns_dane_verify, ldns_dane_verify_rr. And perldoc Net::DNS, RFC1034, RFC1035, RFC4033, RFC4034 and RFC4035.


This manpage was automatically generated from the ldns source code by use of Doxygen and some perl.
30 May 2006 ldns(3)
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