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- Reformat pythonmod/pythonmod_utils.{c,h}.

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This commit is contained in:
George Thessalonikefs 2021-03-22 18:45:31 +01:00
parent 7d5050c729
commit a13d935153
3 changed files with 129 additions and 113 deletions
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1
doc/Changelog
View File

@ -1,6 +1,7 @@
22 March 2021: George
- Fix unused-function warning when compiling with --enable-dnscrypt.
- Fix for #367: fix memory leak when cannot bind to listening port.
- Reformat pythonmod/pythonmod_utils.{c,h}.
22 March 2021: Wouter
- Merge #449 from orbea: build: Add missing linker flags.

43
pythonmod/pythonmod_utils.c
View File

@ -56,15 +56,18 @@
#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)
/* 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");
/* authoritative answer can't be stored in cache */
if (msgrep->authoritative) {
PyErr_SetString(PyExc_ValueError,
"Authoritative answer can't be stored");
return 0;
}
@ -73,7 +76,8 @@ int storeQueryInCache(struct module_qstate* qstate, struct query_info* qinfo, st
}
/* Invalidate the message associated with query_info stored in message cache */
void invalidateQueryInCache(struct module_qstate* qstate, struct query_info* qinfo)
void invalidateQueryInCache(struct module_qstate* qstate,
struct query_info* qinfo)
{
hashvalue_type h;
struct lruhash_entry* e;
@ -81,15 +85,12 @@ void invalidateQueryInCache(struct module_qstate* qstate, struct query_info* qin
size_t i, j;
h = query_info_hash(qinfo, qstate->query_flags);
if ((e=slabhash_lookup(qstate->env->msg_cache, h, qinfo, 0)))
{
if ((e=slabhash_lookup(qstate->env->msg_cache, h, qinfo, 0))) {
r = (struct reply_info*)(e->data);
if (r)
{
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++)
{
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)
@ -115,9 +116,10 @@ int createResponse(struct module_qstate* qstate, sldns_buffer* pkt)
struct edns_data edns;
/* parse message */
prs = (struct msg_parse*) regional_alloc(qstate->env->scratch, sizeof(struct msg_parse));
prs = (struct msg_parse*) regional_alloc(qstate->env->scratch,
sizeof(struct msg_parse));
if(!prs) {
log_err("storeResponse: out of memory on incoming message");
log_err("createResponse: out of memory on incoming message");
return 0;
}
@ -126,7 +128,7 @@ int createResponse(struct module_qstate* qstate, sldns_buffer* pkt)
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");
verbose(VERB_ALGO, "createResponse: parse error on reply packet");
return 0;
}
/* edns is not examined, but removed from message to help cache */
@ -138,13 +140,15 @@ int createResponse(struct module_qstate* qstate, sldns_buffer* pkt)
prs->flags &= ~BIT_CD;
/* allocate response dns_msg in region */
qstate->return_msg = (struct dns_msg*)regional_alloc(qstate->region, sizeof(struct dns_msg));
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");
if(!parse_create_msg(pkt, prs, NULL, &(qstate->return_msg)->qinfo,
&(qstate->return_msg)->rep, qstate->region)) {
log_err("createResponse: malloc failure: allocating incoming dns_msg");
return 0;
}
@ -160,7 +164,8 @@ int createResponse(struct module_qstate* qstate, sldns_buffer* pkt)
/*qstate->return_msg->rep->flags |= BIT_QR; */
if(verbosity >= VERB_ALGO)
log_dns_msg("storeResponse: packet:", &qstate->return_msg->qinfo, qstate->return_msg->rep);
log_dns_msg("createResponse: packet:", &qstate->return_msg->qinfo,
qstate->return_msg->rep);
return 1;
}

26
pythonmod/pythonmod_utils.h
View File

@ -46,7 +46,8 @@ struct delegpt_addr;
struct sldns_buffer;
/**
* Store the reply_info and query_info pair in message cache (qstate->msg_cache)
* Store the reply_info and query_info pair in message cache
* (qstate->msg_cache).
*
* @param qstate: module environment
* @param qinfo: query info, the query for which answer is stored.
@ -56,21 +57,24 @@ struct sldns_buffer;
* It will store only the RRsets, not the message.
* @return 0 on alloc error (out of memory).
*/
int storeQueryInCache(struct module_qstate* qstate, struct query_info* qinfo, struct reply_info* msgrep, int is_referral);
int storeQueryInCache(struct module_qstate* qstate, struct query_info* qinfo,
struct reply_info* msgrep, int is_referral);
/**
* Invalidate the message associated with query_info stored in message cache.
*
* This function invalidates the record in message cache associated with the given query only if such a record exists.
* This function invalidates the record in message cache associated with the
* given query only if such a record exists.
*
* @param qstate: module environment
* @param qinfo: query info, the query for which answer is stored.
*/
void invalidateQueryInCache(struct module_qstate* qstate, struct query_info* qinfo);
void invalidateQueryInCache(struct module_qstate* qstate,
struct query_info* qinfo);
/**
* Create response according to the ldns packet content
* Create response according to the ldns packet content.
*
* This function fills qstate.return_msg up with data of a given packet
*
@ -81,14 +85,20 @@ void invalidateQueryInCache(struct module_qstate* qstate, struct query_info* qin
int createResponse(struct module_qstate* qstate, struct sldns_buffer* pkt);
/**
* Convert reply->addr to string
* Convert reply->addr to string.
* @param reply: comm reply with address in it.
* @param dest: destination string.
* @param maxlen: length of string buffer.
*/
void reply_addr2str(struct comm_reply* reply, char* dest, int maxlen);
/* Convert target->addr to string */
void delegpt_addr_addr2str(struct delegpt_addr* target, char *dest, int maxlen);
/**
* Convert target->addr to string.
* @param target: delegpt_addr with address in it.
* @param dest: destination string.
* @param maxlen: length of string buffer.
*/
void delegpt_addr_addr2str(struct delegpt_addr* target, char *dest,
int maxlen);
#endif /* PYTHONMOD_UTILS_H */