diff options
Diffstat (limited to 'external/unbound/services/modstack.c')
| -rw-r--r-- | external/unbound/services/modstack.c | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/external/unbound/services/modstack.c b/external/unbound/services/modstack.c deleted file mode 100644 index 9bebd3a56..000000000 --- a/external/unbound/services/modstack.c +++ /dev/null @@ -1,236 +0,0 @@ -/* - * services/modstack.c - stack of modules - * - * Copyright (c) 2007, NLnet Labs. All rights reserved. - * - * This software is open source. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * Neither the name of the NLNET LABS nor the names of its contributors may - * be used to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * \file - * - * This file contains functions to help maintain a stack of modules. - */ -#include "config.h" -#include <ctype.h> -#include "services/modstack.h" -#include "util/module.h" -#include "util/fptr_wlist.h" -#include "dns64/dns64.h" -#include "iterator/iterator.h" -#include "validator/validator.h" -#include "respip/respip.h" - -#ifdef WITH_PYTHONMODULE -#include "pythonmod/pythonmod.h" -#endif -#ifdef USE_CACHEDB -#include "cachedb/cachedb.h" -#endif -#ifdef CLIENT_SUBNET -#include "edns-subnet/subnetmod.h" -#endif - -/** count number of modules (words) in the string */ -static int -count_modules(const char* s) -{ - int num = 0; - if(!s) - return 0; - while(*s) { - /* skip whitespace */ - while(*s && isspace((unsigned char)*s)) - s++; - if(*s && !isspace((unsigned char)*s)) { - /* skip identifier */ - num++; - while(*s && !isspace((unsigned char)*s)) - s++; - } - } - return num; -} - -void -modstack_init(struct module_stack* stack) -{ - stack->num = 0; - stack->mod = NULL; -} - -int -modstack_config(struct module_stack* stack, const char* module_conf) -{ - int i; - verbose(VERB_QUERY, "module config: \"%s\"", module_conf); - stack->num = count_modules(module_conf); - if(stack->num == 0) { - log_err("error: no modules specified"); - return 0; - } - if(stack->num > MAX_MODULE) { - log_err("error: too many modules (%d max %d)", - stack->num, MAX_MODULE); - return 0; - } - stack->mod = (struct module_func_block**)calloc((size_t) - stack->num, sizeof(struct module_func_block*)); - if(!stack->mod) { - log_err("out of memory"); - return 0; - } - for(i=0; i<stack->num; i++) { - stack->mod[i] = module_factory(&module_conf); - if(!stack->mod[i]) { - log_err("Unknown value for next module: '%s'", - module_conf); - return 0; - } - } - return 1; -} - -/** The list of module names */ -const char** -module_list_avail(void) -{ - /* these are the modules available */ - static const char* names[] = { - "dns64", -#ifdef WITH_PYTHONMODULE - "python", -#endif -#ifdef USE_CACHEDB - "cachedb", -#endif -#ifdef CLIENT_SUBNET - "subnetcache", -#endif - "respip", - "validator", - "iterator", - NULL}; - return names; -} - -/** func block get function type */ -typedef struct module_func_block* (*fbgetfunctype)(void); - -/** The list of module func blocks */ -static fbgetfunctype* -module_funcs_avail(void) -{ - static struct module_func_block* (*fb[])(void) = { - &dns64_get_funcblock, -#ifdef WITH_PYTHONMODULE - &pythonmod_get_funcblock, -#endif -#ifdef USE_CACHEDB - &cachedb_get_funcblock, -#endif -#ifdef CLIENT_SUBNET - &subnetmod_get_funcblock, -#endif - &respip_get_funcblock, - &val_get_funcblock, - &iter_get_funcblock, - NULL}; - return fb; -} - -struct -module_func_block* module_factory(const char** str) -{ - int i = 0; - const char* s = *str; - const char** names = module_list_avail(); - fbgetfunctype* fb = module_funcs_avail(); - while(*s && isspace((unsigned char)*s)) - s++; - while(names[i]) { - if(strncmp(names[i], s, strlen(names[i])) == 0) { - s += strlen(names[i]); - *str = s; - return (*fb[i])(); - } - i++; - } - return NULL; -} - -int -modstack_setup(struct module_stack* stack, const char* module_conf, - struct module_env* env) -{ - int i; - if(stack->num != 0) - modstack_desetup(stack, env); - /* fixed setup of the modules */ - if(!modstack_config(stack, module_conf)) { - return 0; - } - env->need_to_validate = 0; /* set by module init below */ - for(i=0; i<stack->num; i++) { - verbose(VERB_OPS, "init module %d: %s", - i, stack->mod[i]->name); - fptr_ok(fptr_whitelist_mod_init(stack->mod[i]->init)); - if(!(*stack->mod[i]->init)(env, i)) { - log_err("module init for module %s failed", - stack->mod[i]->name); - return 0; - } - } - return 1; -} - -void -modstack_desetup(struct module_stack* stack, struct module_env* env) -{ - int i; - for(i=0; i<stack->num; i++) { - fptr_ok(fptr_whitelist_mod_deinit(stack->mod[i]->deinit)); - (*stack->mod[i]->deinit)(env, i); - } - stack->num = 0; - free(stack->mod); - stack->mod = NULL; -} - -int -modstack_find(struct module_stack* stack, const char* name) -{ - int i; - for(i=0; i<stack->num; i++) { - if(strcmp(stack->mod[i]->name, name) == 0) - return i; - } - return -1; -} |