f44e67d120
Update unbound 1.13.0 --> 1.13.1. Includes numerous bugfixes documented at: https://www.nlnetlabs.nl/projects/unbound/download/#unbound-1-13-1 MFC after: 1 month
140 lines
5.1 KiB
C
140 lines
5.1 KiB
C
/*
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* dynlibmod.h: module header file
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*
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* Copyright (c) 2019, Peter Munch-Ellingsen (peterme AT peterme.net)
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* * Neither the name of the organization nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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* Dynamic loading module for unbound. Loads dynamic library.
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*/
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#ifndef DYNLIBMOD_H
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#define DYNLIBMOD_H
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#include "util/module.h"
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#include "services/outbound_list.h"
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/**
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* Get the module function block.
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* @return: function block with function pointers to module methods.
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*/
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struct module_func_block* dynlibmod_get_funcblock(void);
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/** dynlib module init */
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int dynlibmod_init(struct module_env* env, int id);
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/** dynlib module deinit */
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void dynlibmod_deinit(struct module_env* env, int id);
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/** dynlib module operate on a query */
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void dynlibmod_operate(struct module_qstate* qstate, enum module_ev event,
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int id, struct outbound_entry* outbound);
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/** dynlib module */
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void dynlibmod_inform_super(struct module_qstate* qstate, int id,
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struct module_qstate* super);
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/** dynlib module cleanup query state */
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void dynlibmod_clear(struct module_qstate* qstate, int id);
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/** dynlib module alloc size routine */
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size_t dynlibmod_get_mem(struct module_env* env, int id);
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int dynlib_inplace_cb_reply_generic(struct query_info* qinfo,
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struct module_qstate* qstate, struct reply_info* rep, int rcode,
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struct edns_data* edns, struct edns_option** opt_list_out,
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struct comm_reply* repinfo, struct regional* region,
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struct timeval* start_time, int id, void* callback);
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int dynlib_inplace_cb_query_generic(struct query_info* qinfo, uint16_t flags,
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struct module_qstate* qstate, struct sockaddr_storage* addr,
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socklen_t addrlen, uint8_t* zone, size_t zonelen, struct regional* region,
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int id, void* callback);
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int dynlib_inplace_cb_edns_back_parsed(struct module_qstate* qstate,
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int id, void* cb_args);
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int dynlib_inplace_cb_query_response(struct module_qstate* qstate,
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struct dns_msg* response, int id, void* cb_args);
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int
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inplace_cb_register_wrapped(void* cb, enum inplace_cb_list_type type, void* cbarg,
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struct module_env* env, int id);
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void
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inplace_cb_delete_wrapped(struct module_env* env, enum inplace_cb_list_type type,
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int id);
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struct cb_pair {
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void *cb;
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void *cb_arg;
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};
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/**
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* Global state for the module.
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*/
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typedef int (*func_init_t)(struct module_env*, int);
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typedef void (*func_deinit_t)(struct module_env*, int);
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typedef void (*func_operate_t)(struct module_qstate*, enum module_ev, int, struct outbound_entry*);
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typedef void (*func_inform_t)(struct module_qstate*, int, struct module_qstate*);
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typedef void (*func_clear_t)(struct module_qstate*, int);
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typedef size_t (*func_get_mem_t)(struct module_env*, int);
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typedef void (*inplace_cb_delete_wrapped_t)(struct module_env*, enum inplace_cb_list_type, int);
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typedef int (*inplace_cb_register_wrapped_t)(void*, enum inplace_cb_list_type, void*, struct module_env*, int);
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struct dynlibmod_env {
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/** Dynamic library filename. */
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const char* fname;
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/** dynamic library handle */
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void* dynamic_library;
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/** Module init function */
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func_init_t func_init;
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/** Module deinit function */
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func_deinit_t func_deinit;
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/** Module operate function */
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func_operate_t func_operate;
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/** Module super_inform function */
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func_inform_t func_inform;
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/** Module clear function */
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func_clear_t func_clear;
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/** Module get_mem function */
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func_get_mem_t func_get_mem;
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/** Wrapped inplace callback functions to circumvent callback whitelisting */
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inplace_cb_delete_wrapped_t inplace_cb_delete_wrapped;
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inplace_cb_register_wrapped_t inplace_cb_register_wrapped;
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/** Pointer to any data the dynamic library might want to keep */
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void *dyn_env;
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};
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#endif /* DYNLIBMOD_H */
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