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Diffstat (limited to 'external/unbound/pythonmod/pythonmod_utils.c')
-rw-r--r-- | external/unbound/pythonmod/pythonmod_utils.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/external/unbound/pythonmod/pythonmod_utils.c b/external/unbound/pythonmod/pythonmod_utils.c deleted file mode 100644 index 5d70f2b4b..000000000 --- a/external/unbound/pythonmod/pythonmod_utils.c +++ /dev/null @@ -1,194 +0,0 @@ -/* - * pythonmod_utils.c: utilities used by wrapper - * - * Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz) - * Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz) - * - * 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 organization 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 REGENTS 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 - * Utility functions for the python module that perform stores and loads and - * conversions. - */ -#include "config.h" -#include "util/module.h" -#include "util/netevent.h" -#include "util/net_help.h" -#include "services/cache/dns.h" -#include "services/cache/rrset.h" -#include "util/data/msgparse.h" -#include "util/data/msgreply.h" -#include "util/storage/slabhash.h" -#include "util/regional.h" -#include "iterator/iter_delegpt.h" -#include "sldns/sbuffer.h" - -#undef _POSIX_C_SOURCE -#undef _XOPEN_SOURCE -#include <Python.h> - -/* Store the reply_info and query_info pair in message cache (qstate->msg_cache) */ -int storeQueryInCache(struct module_qstate* qstate, struct query_info* qinfo, struct reply_info* msgrep, int is_referral) -{ - if (!msgrep) - return 0; - - if (msgrep->authoritative) /*authoritative answer can't be stored in cache*/ - { - PyErr_SetString(PyExc_ValueError, "Authoritative answer can't be stored"); - return 0; - } - - return dns_cache_store(qstate->env, qinfo, msgrep, is_referral, - qstate->prefetch_leeway, 0, NULL, qstate->query_flags); -} - -/* Invalidate the message associated with query_info stored in message cache */ -void invalidateQueryInCache(struct module_qstate* qstate, struct query_info* qinfo) -{ - hashvalue_type h; - struct lruhash_entry* e; - struct reply_info *r; - size_t i, j; - - h = query_info_hash(qinfo, qstate->query_flags); - if ((e=slabhash_lookup(qstate->env->msg_cache, h, qinfo, 0))) - { - r = (struct reply_info*)(e->data); - if (r) - { - r->ttl = 0; - if(rrset_array_lock(r->ref, r->rrset_count, *qstate->env->now)) { - for(i=0; i< r->rrset_count; i++) - { - struct packed_rrset_data* data = - (struct packed_rrset_data*) r->ref[i].key->entry.data; - if(i>0 && r->ref[i].key == r->ref[i-1].key) - continue; - - data->ttl = r->ttl; - for(j=0; j<data->count + data->rrsig_count; j++) - data->rr_ttl[j] = r->ttl; - } - rrset_array_unlock(r->ref, r->rrset_count); - } - } - lock_rw_unlock(&e->lock); - } else { - log_info("invalidateQueryInCache: qinfo is not in cache"); - } -} - -/* Create response according to the ldns packet content */ -int createResponse(struct module_qstate* qstate, sldns_buffer* pkt) -{ - struct msg_parse* prs; - struct edns_data edns; - - /* parse message */ - prs = (struct msg_parse*) regional_alloc(qstate->env->scratch, sizeof(struct msg_parse)); - if (!prs) { - log_err("storeResponse: out of memory on incoming message"); - return 0; - } - - memset(prs, 0, sizeof(*prs)); - memset(&edns, 0, sizeof(edns)); - - sldns_buffer_set_position(pkt, 0); - if (parse_packet(pkt, prs, qstate->env->scratch) != LDNS_RCODE_NOERROR) { - verbose(VERB_ALGO, "storeResponse: parse error on reply packet"); - return 0; - } - /* edns is not examined, but removed from message to help cache */ - if(parse_extract_edns(prs, &edns, qstate->env->scratch) != - LDNS_RCODE_NOERROR) - return 0; - - /* remove CD-bit, we asked for in case we handle validation ourself */ - prs->flags &= ~BIT_CD; - - /* allocate response dns_msg in region */ - qstate->return_msg = (struct dns_msg*)regional_alloc(qstate->region, sizeof(struct dns_msg)); - if (!qstate->return_msg) - return 0; - - memset(qstate->return_msg, 0, sizeof(*qstate->return_msg)); - if(!parse_create_msg(pkt, prs, NULL, &(qstate->return_msg)->qinfo, &(qstate->return_msg)->rep, qstate->region)) { - log_err("storeResponse: malloc failure: allocating incoming dns_msg"); - return 0; - } - - /* Make sure that the RA flag is set (since the presence of - * this module means that recursion is available) */ - /* qstate->return_msg->rep->flags |= BIT_RA; */ - - /* Clear the AA flag */ - /* FIXME: does this action go here or in some other module? */ - /*qstate->return_msg->rep->flags &= ~BIT_AA; */ - - /* make sure QR flag is on */ - /*qstate->return_msg->rep->flags |= BIT_QR; */ - - if(verbosity >= VERB_ALGO) - log_dns_msg("storeResponse: packet:", &qstate->return_msg->qinfo, qstate->return_msg->rep); - - return 1; -} - - -/* Convert reply->addr to string */ -void reply_addr2str(struct comm_reply* reply, char* dest, int maxlen) -{ - int af = (int)((struct sockaddr_in*) &(reply->addr))->sin_family; - void* sinaddr = &((struct sockaddr_in*) &(reply->addr))->sin_addr; - - if(af == AF_INET6) - sinaddr = &((struct sockaddr_in6*)&(reply->addr))->sin6_addr; - dest[0] = 0; - if (inet_ntop(af, sinaddr, dest, (socklen_t)maxlen) == 0) - return; - dest[maxlen-1] = 0; -} - -/* Convert target->addr to string */ -void delegpt_addr_addr2str(struct delegpt_addr* target, char *dest, int maxlen) -{ - int af = (int)((struct sockaddr_in*) &(target->addr))->sin_family; - void* sinaddr = &((struct sockaddr_in*) &(target->addr))->sin_addr; - - if(af == AF_INET6) - sinaddr = &((struct sockaddr_in6*)&(target->addr))->sin6_addr; - dest[0] = 0; - if (inet_ntop(af, sinaddr, dest, (socklen_t)maxlen) == 0) - return; - dest[maxlen-1] = 0; -} |