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proc
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usr
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include
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tsec.h
/* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ #ifndef DNS_TSEC_H #define DNS_TSEC_H 1 /***** ***** Module Info *****/ /*! \file * * \brief * The TSEC (Transaction Security) module is an abstraction layer for managing * DNS transaction mechanisms such as TSIG or SIG(0). A TSEC structure is a * mechanism-independent object containing key information specific to the * mechanism, and is expected to be used as an argument to other modules * that use transaction security in a mechanism-independent manner. * * MP: *\li A TSEC structure is expected to be thread-specific. No inter-thread * synchronization is ensured in multiple access to a single TSEC * structure. * * Resources: *\li TBS * * Security: *\li This module does not handle any low-level data directly, and so no * security issue specific to this module is anticipated. */ #include <dns/types.h> #include <dst/dst.h> ISC_LANG_BEGINDECLS /*** *** Types ***/ /*% * Transaction security types. */ typedef enum { dns_tsectype_none, dns_tsectype_tsig, dns_tsectype_sig0 } dns_tsectype_t; isc_result_t dns_tsec_create(isc_mem_t *mctx, dns_tsectype_t type, dst_key_t *key, dns_tsec_t **tsecp); /*%< * Create a TSEC structure and stores a type-dependent key structure in it. * For a TSIG key (type is dns_tsectype_tsig), dns_tsec_create() creates a * TSIG key structure from '*key' and keeps it in the structure. For other * types, this function simply retains '*key' in the structure. In either * case, the ownership of '*key' is transferred to the TSEC module; the caller * must not modify or destroy it after the call to dns_tsec_create(). * * Requires: * *\li 'mctx' is a valid memory context. * *\li 'type' is a valid value of dns_tsectype_t (see above). * *\li 'key' is a valid key. * *\li tsecp != NULL && *tsecp == NULL. * * Returns: * *\li #ISC_R_SUCCESS On success. * *\li Anything else Failure. */ void dns_tsec_destroy(dns_tsec_t **tsecp); /*%< * Destroy the TSEC structure. The stored key is also detached or destroyed. * * Requires * *\li '*tsecp' is a valid TSEC structure. * * Ensures * *\li *tsecp == NULL. * */ dns_tsectype_t dns_tsec_gettype(dns_tsec_t *tsec); /*%< * Return the TSEC type of '*tsec'. * * Requires * *\li 'tsec' is a valid TSEC structure. * */ void dns_tsec_getkey(dns_tsec_t *tsec, void *keyp); /*%< * Return the TSEC key of '*tsec' in '*keyp'. * * Requires * *\li keyp != NULL * * Ensures * *\li *tsecp points to a valid key structure depending on the TSEC type. */ ISC_LANG_ENDDECLS #endif /* DNS_TSEC_H */
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