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hostip: remove conn->data from resolver functions 

This also moves the 'async' struct from the connectdata struct into the
Curl_easy struct, which seems like a better home for it.

Closes #6497
This commit is contained in:
Daniel Stenberg 2021-01-20 10:15:43 +01:00
parent d3a3bdb5ef
commit 8335c6417e
No known key found for this signature in database
GPG Key ID: 5CC908FDB71E12C2
18 changed files with 242 additions and 254 deletions
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132
lib/asyn-ares.c
View File

@ -204,22 +204,22 @@ static void destroy_async_data(struct Curl_async *async);
/*
* Cancel all possibly still on-going resolves for this connection.
*/
void Curl_resolver_cancel(struct connectdata *conn)
void Curl_resolver_cancel(struct Curl_easy *data)
{
if(conn->data && conn->data->state.resolver)
ares_cancel((ares_channel)conn->data->state.resolver);
destroy_async_data(&conn->async);
if(data && data->state.async.resolver)
ares_cancel((ares_channel)data->state.async.resolver);
destroy_async_data(&data->state.async);
}
/*
* We're equivalent to Curl_resolver_cancel() for the c-ares resolver. We
* never block.
*/
void Curl_resolver_kill(struct connectdata *conn)
void Curl_resolver_kill(struct Curl_easy *data)
{
/* We don't need to check the resolver state because we can be called safely
at any time and we always do the same thing. */
Curl_resolver_cancel(conn);
Curl_resolver_cancel(data);
}
/*
@ -253,25 +253,25 @@ static void destroy_async_data(struct Curl_async *async)
* Returns: sockets-in-use-bitmap
*/
int Curl_resolver_getsock(struct connectdata *conn,
int Curl_resolver_getsock(struct Curl_easy *data,
curl_socket_t *socks)
{
struct timeval maxtime;
struct timeval timebuf;
struct timeval *timeout;
long milli;
int max = ares_getsock((ares_channel)conn->data->state.resolver,
int max = ares_getsock((ares_channel)data->state.async.resolver,
(ares_socket_t *)socks, MAX_SOCKSPEREASYHANDLE);
maxtime.tv_sec = CURL_TIMEOUT_RESOLVE;
maxtime.tv_usec = 0;
timeout = ares_timeout((ares_channel)conn->data->state.resolver, &maxtime,
timeout = ares_timeout((ares_channel)data->state.async.resolver, &maxtime,
&timebuf);
milli = (timeout->tv_sec * 1000) + (timeout->tv_usec/1000);
if(milli == 0)
milli += 10;
Curl_expire(conn->data, milli, EXPIRE_ASYNC_NAME);
Curl_expire(data, milli, EXPIRE_ASYNC_NAME);
return max;
}
@ -286,9 +286,8 @@ int Curl_resolver_getsock(struct connectdata *conn,
* return number of sockets it worked on
*/
static int waitperform(struct connectdata *conn, timediff_t timeout_ms)
static int waitperform(struct Curl_easy *data, timediff_t timeout_ms)
{
struct Curl_easy *data = conn->data;
int nfds;
int bitmask;
ares_socket_t socks[ARES_GETSOCK_MAXNUM];
@ -296,7 +295,7 @@ static int waitperform(struct connectdata *conn, timediff_t timeout_ms)
int i;
int num = 0;
bitmask = ares_getsock((ares_channel)data->state.resolver, socks,
bitmask = ares_getsock((ares_channel)data->state.async.resolver, socks,
ARES_GETSOCK_MAXNUM);
for(i = 0; i < ARES_GETSOCK_MAXNUM; i++) {
@ -324,12 +323,12 @@ static int waitperform(struct connectdata *conn, timediff_t timeout_ms)
if(!nfds)
/* Call ares_process() unconditonally here, even if we simply timed out
above, as otherwise the ares name resolve won't timeout! */
ares_process_fd((ares_channel)data->state.resolver, ARES_SOCKET_BAD,
ares_process_fd((ares_channel)data->state.async.resolver, ARES_SOCKET_BAD,
ARES_SOCKET_BAD);
else {
/* move through the descriptors and ask for processing on them */
for(i = 0; i < num; i++)
ares_process_fd((ares_channel)data->state.resolver,
ares_process_fd((ares_channel)data->state.async.resolver,
(pfd[i].revents & (POLLRDNORM|POLLIN))?
pfd[i].fd:ARES_SOCKET_BAD,
(pfd[i].revents & (POLLWRNORM|POLLOUT))?
@ -345,17 +344,16 @@ static int waitperform(struct connectdata *conn, timediff_t timeout_ms)
*
* Returns normal CURLcode errors.
*/
CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
CURLcode Curl_resolver_is_resolved(struct Curl_easy *data,
struct Curl_dns_entry **dns)
{
struct Curl_easy *data = conn->data;
struct thread_data *res = conn->async.tdata;
struct thread_data *res = data->state.async.tdata;
CURLcode result = CURLE_OK;
DEBUGASSERT(dns);
*dns = NULL;
waitperform(conn, 0);
waitperform(data, 0);
/* Now that we've checked for any last minute results above, see if there are
any responses still pending when the EXPIRE_HAPPY_EYEBALLS_DNS timer
@ -376,26 +374,27 @@ CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
ARES_ECANCELLED synchronously for all pending responses. This will
leave us with res->num_pending == 0, which is perfect for the next
block. */
ares_cancel((ares_channel)data->state.resolver);
ares_cancel((ares_channel)data->state.async.resolver);
DEBUGASSERT(res->num_pending == 0);
}
if(res && !res->num_pending) {
(void)Curl_addrinfo_callback(conn, res->last_status, res->temp_ai);
(void)Curl_addrinfo_callback(data, res->last_status, res->temp_ai);
/* temp_ai ownership is moved to the connection, so we need not free-up
them */
res->temp_ai = NULL;
if(!conn->async.dns) {
if(!data->state.async.dns) {
failf(data, "Could not resolve: %s (%s)",
conn->async.hostname, ares_strerror(conn->async.status));
result = conn->bits.proxy?CURLE_COULDNT_RESOLVE_PROXY:
data->state.async.hostname,
ares_strerror(data->state.async.status));
result = data->conn->bits.proxy?CURLE_COULDNT_RESOLVE_PROXY:
CURLE_COULDNT_RESOLVE_HOST;
}
else
*dns = conn->async.dns;
*dns = data->state.async.dns;
destroy_async_data(&conn->async);
destroy_async_data(&data->state.async);
}
return result;
@ -412,11 +411,10 @@ CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
* Returns CURLE_COULDNT_RESOLVE_HOST if the host was not resolved,
* CURLE_OPERATION_TIMEDOUT if a time-out occurred, or other errors.
*/
CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
CURLcode Curl_resolver_wait_resolv(struct Curl_easy *data,
struct Curl_dns_entry **entry)
{
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
timediff_t timeout;
struct curltime now = Curl_now();
@ -426,7 +424,7 @@ CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
timeout = Curl_timeleft(data, &now, TRUE);
if(timeout < 0) {
/* already expired! */
connclose(conn, "Timed out before name resolve started");
connclose(data->conn, "Timed out before name resolve started");
return CURLE_OPERATION_TIMEDOUT;
}
if(!timeout)
@ -447,7 +445,7 @@ CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
store.tv_sec = itimeout/1000;
store.tv_usec = (itimeout%1000)*1000;
tvp = ares_timeout((ares_channel)data->state.resolver, &store, &tv);
tvp = ares_timeout((ares_channel)data->state.async.resolver, &store, &tv);
/* use the timeout period ares returned to us above if less than one
second is left, otherwise just use 1000ms to make sure the progress
@ -457,10 +455,10 @@ CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
else
timeout_ms = 1000;
waitperform(conn, timeout_ms);
result = Curl_resolver_is_resolved(conn, entry);
waitperform(data, timeout_ms);
result = Curl_resolver_is_resolved(data, entry);
if(result || conn->async.done)
if(result || data->state.async.done)
break;
if(Curl_pgrsUpdate(data))
@ -481,17 +479,17 @@ CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
}
if(result)
/* failure, so we cancel the ares operation */
ares_cancel((ares_channel)data->state.resolver);
ares_cancel((ares_channel)data->state.async.resolver);
/* Operation complete, if the lookup was successful we now have the entry
in the cache. */
if(entry)
*entry = conn->async.dns;
*entry = data->state.async.dns;
if(result)
/* close the connection, since we can't return failure here without
cleaning up this connection properly. */
connclose(conn, "c-ares resolve failed");
connclose(data->conn, "c-ares resolve failed");
return result;
}
@ -525,7 +523,7 @@ static void query_completed_cb(void *arg, /* (struct connectdata *) */
#endif
struct hostent *hostent)
{
struct connectdata *conn = (struct connectdata *)arg;
struct Curl_easy *data = (struct Curl_easy *)arg;
struct thread_data *res;
#ifdef HAVE_CARES_CALLBACK_TIMEOUTS
@ -537,12 +535,12 @@ static void query_completed_cb(void *arg, /* (struct connectdata *) */
be valid so only defer it when we know the 'status' says its fine! */
return;
res = conn->async.tdata;
res = data->state.async.tdata;
if(res) {
res->num_pending--;
if(CURL_ASYNC_SUCCESS == status) {
struct Curl_addrinfo *ai = Curl_he2ai(hostent, conn->async.port);
struct Curl_addrinfo *ai = Curl_he2ai(hostent, data->state.async.port);
if(ai) {
compound_results(res, ai);
}
@ -607,8 +605,8 @@ static void query_completed_cb(void *arg, /* (struct connectdata *) */
c-ares retry cycle each request is.
*/
res->happy_eyeballs_dns_time = Curl_now();
Curl_expire(
conn->data, HAPPY_EYEBALLS_DNS_TIMEOUT, EXPIRE_HAPPY_EYEBALLS_DNS);
Curl_expire(data, HAPPY_EYEBALLS_DNS_TIMEOUT,
EXPIRE_HAPPY_EYEBALLS_DNS);
}
}
}
@ -621,19 +619,18 @@ static void query_completed_cb(void *arg, /* (struct connectdata *) */
* memory we need to free after use. That memory *MUST* be freed with
* Curl_freeaddrinfo(), nothing else.
*/
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
{
char *bufp;
struct Curl_easy *data = conn->data;
int family = PF_INET;
*waitp = 0; /* default to synchronous response */
#ifdef ENABLE_IPV6
switch(conn->ip_version) {
switch(data->set.ipver) {
default:
#if ARES_VERSION >= 0x010601
family = PF_UNSPEC; /* supported by c-ares since 1.6.1, so for older
@ -653,19 +650,19 @@ struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
bufp = strdup(hostname);
if(bufp) {
struct thread_data *res = NULL;
free(conn->async.hostname);
conn->async.hostname = bufp;
conn->async.port = port;
conn->async.done = FALSE; /* not done */
conn->async.status = 0; /* clear */
conn->async.dns = NULL; /* clear */
free(data->state.async.hostname);
data->state.async.hostname = bufp;
data->state.async.port = port;
data->state.async.done = FALSE; /* not done */
data->state.async.status = 0; /* clear */
data->state.async.dns = NULL; /* clear */
res = calloc(sizeof(struct thread_data), 1);
if(!res) {
free(conn->async.hostname);
conn->async.hostname = NULL;
free(data->state.async.hostname);
data->state.async.hostname = NULL;
return NULL;
}
conn->async.tdata = res;
data->state.async.tdata = res;
/* initial status - failed */
res->last_status = ARES_ENOTFOUND;
@ -675,17 +672,17 @@ struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
res->num_pending = 2;
/* areschannel is already setup in the Curl_open() function */
ares_gethostbyname((ares_channel)data->state.resolver, hostname,
PF_INET, query_completed_cb, conn);
ares_gethostbyname((ares_channel)data->state.resolver, hostname,
PF_INET6, query_completed_cb, conn);
ares_gethostbyname((ares_channel)data->state.async.resolver, hostname,
PF_INET, query_completed_cb, data);
ares_gethostbyname((ares_channel)data->state.async.resolver, hostname,
PF_INET6, query_completed_cb, data);
}
else {
res->num_pending = 1;
/* areschannel is already setup in the Curl_open() function */
ares_gethostbyname((ares_channel)data->state.resolver, hostname,
PF_INET, query_completed_cb, conn);
ares_gethostbyname((ares_channel)data->state.async.resolver, hostname,
PF_INET, query_completed_cb, data);
}
}
else
@ -694,8 +691,9 @@ struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
res->num_pending = 1;
/* areschannel is already setup in the Curl_open() function */
ares_gethostbyname((ares_channel)data->state.resolver, hostname, family,
query_completed_cb, conn);
ares_gethostbyname((ares_channel)data->state.async.resolver,
hostname, family,
query_completed_cb, data);
}
*waitp = 1; /* expect asynchronous response */
@ -720,9 +718,10 @@ CURLcode Curl_set_dns_servers(struct Curl_easy *data,
#if (ARES_VERSION >= 0x010704)
#if (ARES_VERSION >= 0x010b00)
ares_result = ares_set_servers_ports_csv(data->state.resolver, servers);
ares_result = ares_set_servers_ports_csv(data->state.async.resolver,
servers);
#else
ares_result = ares_set_servers_csv(data->state.resolver, servers);
ares_result = ares_set_servers_csv(data->state.async.resolver, servers);
#endif
switch(ares_result) {
case ARES_SUCCESS:
@ -752,7 +751,7 @@ CURLcode Curl_set_dns_interface(struct Curl_easy *data,
if(!interf)
interf = "";
ares_set_local_dev((ares_channel)data->state.resolver, interf);
ares_set_local_dev((ares_channel)data->state.async.resolver, interf);
return CURLE_OK;
#else /* c-ares version too old! */
@ -777,7 +776,8 @@ CURLcode Curl_set_dns_local_ip4(struct Curl_easy *data,
}
}
ares_set_local_ip4((ares_channel)data->state.resolver, ntohl(a4.s_addr));
ares_set_local_ip4((ares_channel)data->state.async.resolver,
ntohl(a4.s_addr));
return CURLE_OK;
#else /* c-ares version too old! */
@ -803,7 +803,7 @@ CURLcode Curl_set_dns_local_ip6(struct Curl_easy *data,
}
}
ares_set_local_ip6((ares_channel)data->state.resolver, a6);
ares_set_local_ip6((ares_channel)data->state.async.resolver, a6);
return CURLE_OK;
#else /* c-ares version too old! */

135
lib/asyn-thread.c
View File

@ -145,13 +145,13 @@ static void destroy_async_data(struct Curl_async *);
/*
* Cancel all possibly still on-going resolves for this connection.
*/
void Curl_resolver_cancel(struct connectdata *conn)
void Curl_resolver_cancel(struct Curl_easy *data)
{
destroy_async_data(&conn->async);
destroy_async_data(&data->state.async);
}
/* This function is used to init a threaded resolve */
static bool init_resolve_thread(struct connectdata *conn,
static bool init_resolve_thread(struct Curl_easy *data,
const char *hostname, int port,
const struct addrinfo *hints);
@ -164,7 +164,7 @@ struct thread_sync_data {
char *hostname; /* hostname to resolve, Curl_async.hostname
duplicate */
#ifdef USE_SOCKETPAIR
struct connectdata *conn;
struct Curl_easy *data;
curl_socket_t sock_pair[2]; /* socket pair */
#endif
int sock_error;
@ -182,9 +182,9 @@ struct thread_data {
struct thread_sync_data tsd;
};
static struct thread_sync_data *conn_thread_sync_data(struct connectdata *conn)
static struct thread_sync_data *conn_thread_sync_data(struct Curl_easy *data)
{
return &(conn->async.tdata->tsd);
return &(data->state.async.tdata->tsd);
}
/* Destroy resolver thread synchronization data */
@ -268,12 +268,12 @@ int init_thread_sync_data(struct thread_data *td,
return 0;
}
static int getaddrinfo_complete(struct connectdata *conn)
static int getaddrinfo_complete(struct Curl_easy *data)
{
struct thread_sync_data *tsd = conn_thread_sync_data(conn);
struct thread_sync_data *tsd = conn_thread_sync_data(data);
int rc;
rc = Curl_addrinfo_callback(conn, tsd->sock_error, tsd->res);
rc = Curl_addrinfo_callback(data, tsd->sock_error, tsd->res);
/* The tsd->res structure has been copied to async.dns and perhaps the DNS
cache. Set our copy to NULL so destroy_thread_sync_data doesn't free it.
*/
@ -384,7 +384,7 @@ static void destroy_async_data(struct Curl_async *async)
int done;
#ifdef USE_SOCKETPAIR
curl_socket_t sock_rd = td->tsd.sock_pair[0];
struct connectdata *conn = td->tsd.conn;
struct Curl_easy *data = td->tsd.data;
#endif
/*
@ -412,8 +412,7 @@ static void destroy_async_data(struct Curl_async *async)
* ensure CURLMOPT_SOCKETFUNCTION fires CURL_POLL_REMOVE
* before the FD is invalidated to avoid EBADF on EPOLL_CTL_DEL
*/
if(conn)
Curl_multi_closed(conn->data, sock_rd);
Curl_multi_closed(data, sock_rd);
sclose(sock_rd);
#endif
}
@ -429,32 +428,33 @@ static void destroy_async_data(struct Curl_async *async)
*
* Returns FALSE in case of failure, otherwise TRUE.
*/
static bool init_resolve_thread(struct connectdata *conn,
static bool init_resolve_thread(struct Curl_easy *data,
const char *hostname, int port,
const struct addrinfo *hints)
{
struct thread_data *td = calloc(1, sizeof(struct thread_data));
int err = ENOMEM;
struct Curl_async *asp = &data->state.async;
conn->async.tdata = td;
data->state.async.tdata = td;
if(!td)
goto errno_exit;
conn->async.port = port;
conn->async.done = FALSE;
conn->async.status = 0;
conn->async.dns = NULL;
asp->port = port;
asp->done = FALSE;
asp->status = 0;
asp->dns = NULL;
td->thread_hnd = curl_thread_t_null;
if(!init_thread_sync_data(td, hostname, port, hints)) {
conn->async.tdata = NULL;
asp->tdata = NULL;
free(td);
goto errno_exit;
}
free(conn->async.hostname);
conn->async.hostname = strdup(hostname);
if(!conn->async.hostname)
free(asp->hostname);
asp->hostname = strdup(hostname);
if(!asp->hostname)
goto err_exit;
/* The thread will set this to 1 when complete. */
@ -476,7 +476,7 @@ static bool init_resolve_thread(struct connectdata *conn,
return TRUE;
err_exit:
destroy_async_data(&conn->async);
destroy_async_data(asp);
errno_exit:
errno = err;
@ -488,12 +488,13 @@ static bool init_resolve_thread(struct connectdata *conn,
* error
*/
static CURLcode resolver_error(struct connectdata *conn)
static CURLcode resolver_error(struct Curl_easy *data)
{
const char *host_or_proxy;
CURLcode result;
#ifndef CURL_DISABLE_PROXY
struct connectdata *conn = data->conn;
if(conn->bits.httpproxy) {
host_or_proxy = "proxy";
result = CURLE_COULDNT_RESOLVE_PROXY;
@ -505,8 +506,8 @@ static CURLcode resolver_error(struct connectdata *conn)
result = CURLE_COULDNT_RESOLVE_HOST;
}
failf(conn->data, "Could not resolve %s: %s", host_or_proxy,
conn->async.hostname);
failf(data, "Could not resolve %s: %s", host_or_proxy,
data->state.async.hostname);
return result;
}
@ -514,37 +515,39 @@ static CURLcode resolver_error(struct connectdata *conn)
/*
* 'entry' may be NULL and then no data is returned
*/
static CURLcode thread_wait_resolv(struct connectdata *conn,
static CURLcode thread_wait_resolv(struct Curl_easy *data,
struct Curl_dns_entry **entry,
bool report)
{
struct thread_data *td = conn->async.tdata;
struct thread_data *td;
CURLcode result = CURLE_OK;
DEBUGASSERT(conn && td);
DEBUGASSERT(data);
td = data->state.async.tdata;
DEBUGASSERT(td);
DEBUGASSERT(td->thread_hnd != curl_thread_t_null);
/* wait for the thread to resolve the name */
if(Curl_thread_join(&td->thread_hnd)) {
if(entry)
result = getaddrinfo_complete(conn);
result = getaddrinfo_complete(data);
}
else
DEBUGASSERT(0);
conn->async.done = TRUE;
data->state.async.done = TRUE;
if(entry)
*entry = conn->async.dns;
*entry = data->state.async.dns;
if(!conn->async.dns && report)
if(!data->state.async.dns && report)
/* a name was not resolved, report error */
result = resolver_error(conn);
result = resolver_error(data);
destroy_async_data(&conn->async);
destroy_async_data(&data->state.async);
if(!conn->async.dns && report)
connclose(conn, "asynch resolve failed");
if(!data->state.async.dns && report)
connclose(data->conn, "asynch resolve failed");
return result;
}
@ -554,17 +557,17 @@ static CURLcode thread_wait_resolv(struct connectdata *conn,
* Until we gain a way to signal the resolver threads to stop early, we must
* simply wait for them and ignore their results.
*/
void Curl_resolver_kill(struct connectdata *conn)
void Curl_resolver_kill(struct Curl_easy *data)
{
struct thread_data *td = conn->async.tdata;
struct thread_data *td = data->state.async.tdata;
/* If we're still resolving, we must wait for the threads to fully clean up,
unfortunately. Otherwise, we can simply cancel to clean up any resolver
data. */
if(td && td->thread_hnd != curl_thread_t_null)
(void)thread_wait_resolv(conn, NULL, FALSE);
(void)thread_wait_resolv(data, NULL, FALSE);
else
Curl_resolver_cancel(conn);
Curl_resolver_cancel(data);
}
/*
@ -580,10 +583,10 @@ void Curl_resolver_kill(struct connectdata *conn)
*
* This is the version for resolves-in-a-thread.
*/
CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
CURLcode Curl_resolver_wait_resolv(struct Curl_easy *data,
struct Curl_dns_entry **entry)
{
return thread_wait_resolv(conn, entry, TRUE);
return thread_wait_resolv(data, entry, TRUE);
}
/*
@ -591,11 +594,10 @@ CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
* name resolve request has completed. It should also make sure to time-out if
* the operation seems to take too long.
*/
CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
CURLcode Curl_resolver_is_resolved(struct Curl_easy *data,
struct Curl_dns_entry **entry)
{
struct Curl_easy *data = conn->data;
struct thread_data *td = conn->async.tdata;
struct thread_data *td = data->state.async.tdata;
int done = 0;
DEBUGASSERT(entry);
@ -611,15 +613,15 @@ CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
Curl_mutex_release(td->tsd.mtx);
if(done) {
getaddrinfo_complete(conn);
getaddrinfo_complete(data);
if(!conn->async.dns) {
CURLcode result = resolver_error(conn);
destroy_async_data(&conn->async);
if(!data->state.async.dns) {
CURLcode result = resolver_error(data);
destroy_async_data(&data->state.async);
return result;
}
destroy_async_data(&conn->async);
*entry = conn->async.dns;
destroy_async_data(&data->state.async);
*entry = data->state.async.dns;
}
else {
/* poll for name lookup done with exponential backoff up to 250ms */
@ -640,22 +642,20 @@ CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
td->poll_interval = 250;
td->interval_end = elapsed + td->poll_interval;
Curl_expire(conn->data, td->poll_interval, EXPIRE_ASYNC_NAME);
Curl_expire(data, td->poll_interval, EXPIRE_ASYNC_NAME);
}
return CURLE_OK;
}
int Curl_resolver_getsock(struct connectdata *conn,
curl_socket_t *socks)
int Curl_resolver_getsock(struct Curl_easy *data, curl_socket_t *socks)
{
int ret_val = 0;
timediff_t milli;
timediff_t ms;
struct Curl_easy *data = conn->data;
struct resdata *reslv = (struct resdata *)data->state.resolver;
struct resdata *reslv = (struct resdata *)data->state.async.resolver;
#ifdef USE_SOCKETPAIR
struct thread_data *td = conn->async.tdata;
struct thread_data *td = data->state.async.tdata;
#else
(void)socks;
#endif
@ -664,8 +664,7 @@ int Curl_resolver_getsock(struct connectdata *conn,
if(td) {
/* return read fd to client for polling the DNS resolution status */
socks[0] = td->tsd.sock_pair[0];
DEBUGASSERT(td->tsd.conn == conn || !td->tsd.conn);
td->tsd.conn = conn;
td->tsd.data = data;
ret_val = GETSOCK_READSOCK(0);
}
else {
@ -692,12 +691,11 @@ int Curl_resolver_getsock(struct connectdata *conn,
/*
* Curl_getaddrinfo() - for platforms without getaddrinfo
*/
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
{
struct Curl_easy *data = conn->data;
struct resdata *reslv = (struct resdata *)data->state.resolver;
*waitp = 0; /* default to synchronous response */
@ -705,7 +703,7 @@ struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
reslv->start = Curl_now();
/* fire up a new resolver thread! */
if(init_resolve_thread(conn, hostname, port, NULL)) {
if(init_resolve_thread(data, hostname, port, NULL)) {
*waitp = 1; /* expect asynchronous response */
return NULL;
}
@ -720,15 +718,14 @@ struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
/*
* Curl_resolver_getaddrinfo() - for getaddrinfo
*/
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
{
struct addrinfo hints;
int pf = PF_INET;
struct Curl_easy *data = conn->data;
struct resdata *reslv = (struct resdata *)data->state.resolver;
struct resdata *reslv = (struct resdata *)data->state.async.resolver;
*waitp = 0; /* default to synchronous response */
@ -736,7 +733,7 @@ struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
/*
* Check if a limited name resolve has been requested.
*/
switch(conn->ip_version) {
switch(data->set.ipver) {
case CURL_IPRESOLVE_V4:
pf = PF_INET;
break;
@ -755,12 +752,12 @@ struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
memset(&hints, 0, sizeof(hints));
hints.ai_family = pf;
hints.ai_socktype = (conn->transport == TRNSPRT_TCP)?
hints.ai_socktype = (data->conn->transport == TRNSPRT_TCP)?
SOCK_STREAM : SOCK_DGRAM;
reslv->start = Curl_now();
/* fire up a new resolver thread! */
if(init_resolve_thread(conn, hostname, port, &hints)) {
if(init_resolve_thread(data, hostname, port, &hints)) {
*waitp = 1; /* expect asynchronous response */
return NULL;
}

14
lib/asyn.h
View File

@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -91,7 +91,7 @@ CURLcode Curl_resolver_duphandle(struct Curl_easy *easy, void **to,
*
* It is safe to call this when conn is in any state.
*/
void Curl_resolver_cancel(struct connectdata *conn);
void Curl_resolver_cancel(struct Curl_easy *data);
/*
* Curl_resolver_kill().
@ -104,7 +104,7 @@ void Curl_resolver_cancel(struct connectdata *conn);
*
* It is safe to call this when conn is in any state.
*/
void Curl_resolver_kill(struct connectdata *conn);
void Curl_resolver_kill(struct Curl_easy *data);
/* Curl_resolver_getsock()
*
@ -114,7 +114,7 @@ void Curl_resolver_kill(struct connectdata *conn);
* return bitmask indicating what file descriptors (referring to array indexes
* in the 'sock' array) to wait for, read/write.
*/
int Curl_resolver_getsock(struct connectdata *conn, curl_socket_t *sock);
int Curl_resolver_getsock(struct Curl_easy *data, curl_socket_t *sock);
/*
* Curl_resolver_is_resolved()
@ -125,7 +125,7 @@ int Curl_resolver_getsock(struct connectdata *conn, curl_socket_t *sock);
*
* Returns normal CURLcode errors.
*/
CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
CURLcode Curl_resolver_is_resolved(struct Curl_easy *data,
struct Curl_dns_entry **dns);
/*
@ -139,7 +139,7 @@ CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
* Returns CURLE_COULDNT_RESOLVE_HOST if the host was not resolved,
* CURLE_OPERATION_TIMEDOUT if a time-out occurred, or other errors.
*/
CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
CURLcode Curl_resolver_wait_resolv(struct Curl_easy *data,
struct Curl_dns_entry **dnsentry);
/*
@ -153,7 +153,7 @@ CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
* Each resolver backend must of course make sure to return data in the
* correct format to comply with this.
*/
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_resolver_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp);

4
lib/connect.c
View File

@ -358,9 +358,9 @@ static CURLcode bindlocal(struct Curl_easy *data,
conn->ip_version = CURL_IPRESOLVE_V6;
#endif
rc = Curl_resolv(conn, dev, 0, FALSE, &h);
rc = Curl_resolv(data, dev, 0, FALSE, &h);
if(rc == CURLRESOLV_PENDING)
(void)Curl_resolver_wait_resolv(conn, &h);
(void)Curl_resolver_wait_resolv(data, &h);
conn->ip_version = ipver;
if(h) {

15
lib/doh.c
View File

@ -379,21 +379,21 @@ static CURLcode dohprobe(struct Curl_easy *data,
* 'Curl_addrinfo *' with the address information.
*/
struct Curl_addrinfo *Curl_doh(struct connectdata *conn,
struct Curl_addrinfo *Curl_doh(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
{
struct Curl_easy *data = conn->data;
CURLcode result = CURLE_OK;
int slot;
struct dohdata *dohp;
struct connectdata *conn = data->conn;
*waitp = TRUE; /* this never returns synchronously */
(void)conn;
(void)hostname;
(void)port;
DEBUGASSERT(!data->req.doh);
DEBUGASSERT(conn);
/* start clean, consider allocating this struct on demand */
dohp = data->req.doh = calloc(sizeof(struct dohdata), 1);
@ -911,11 +911,10 @@ UNITTEST void de_cleanup(struct dohentry *d)
}
}
CURLcode Curl_doh_is_resolved(struct connectdata *conn,
CURLcode Curl_doh_is_resolved(struct Curl_easy *data,
struct Curl_dns_entry **dnsp)
{
CURLcode result;
struct Curl_easy *data = conn->data;
struct dohdata *dohp = data->req.doh;
*dnsp = NULL; /* defaults to no response */
if(!dohp)
@ -923,8 +922,8 @@ CURLcode Curl_doh_is_resolved(struct connectdata *conn,
if(!dohp->probe[DOH_PROBE_SLOT_IPADDR_V4].easy &&
!dohp->probe[DOH_PROBE_SLOT_IPADDR_V6].easy) {
failf(data, "Could not DOH-resolve: %s", conn->async.hostname);
return conn->bits.proxy?CURLE_COULDNT_RESOLVE_PROXY:
failf(data, "Could not DOH-resolve: %s", data->state.async.hostname);
return data->conn->bits.proxy?CURLE_COULDNT_RESOLVE_PROXY:
CURLE_COULDNT_RESOLVE_HOST;
}
else if(!dohp->pending) {
@ -984,7 +983,7 @@ CURLcode Curl_doh_is_resolved(struct connectdata *conn,
Curl_freeaddrinfo(ai);
}
else {
conn->async.dns = dns;
data->state.async.dns = dns;
*dnsp = dns;
result = CURLE_OK; /* address resolution OK */
}

6
lib/doh.h
View File

@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2018 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 2018 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -32,12 +32,12 @@
* and returns a 'Curl_addrinfo *' with the address information.
*/
struct Curl_addrinfo *Curl_doh(struct connectdata *conn,
struct Curl_addrinfo *Curl_doh(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp);
CURLcode Curl_doh_is_resolved(struct connectdata *conn,
CURLcode Curl_doh_is_resolved(struct Curl_easy *data,
struct Curl_dns_entry **dns);
int Curl_doh_getsock(struct connectdata *conn, curl_socket_t *socks);

4
lib/easy.c
View File

@ -908,8 +908,8 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
#endif
/* Clone the resolver handle, if present, for the new handle */
if(Curl_resolver_duphandle(outcurl,
&outcurl->state.resolver,
data->state.resolver))
&outcurl->state.async.resolver,
data->state.async.resolver))
goto fail;
#ifdef USE_ARES

12
lib/ftp.c
View File

@ -1079,9 +1079,9 @@ static CURLcode ftp_state_use_port(struct Curl_easy *data,
}
/* resolv ip/host to ip */
rc = Curl_resolv(conn, host, 0, FALSE, &h);
rc = Curl_resolv(data, host, 0, FALSE, &h);
if(rc == CURLRESOLV_PENDING)
(void)Curl_resolver_wait_resolv(conn, &h);
(void)Curl_resolver_wait_resolv(data, &h);
if(h) {
res = h->addr;
/* when we return from this function, we can forget about this entry
@ -1945,11 +1945,11 @@ static CURLcode ftp_state_pasv_resp(struct Curl_easy *data,
*/
const char * const host_name = conn->bits.socksproxy ?
conn->socks_proxy.host.name : conn->http_proxy.host.name;
rc = Curl_resolv(conn, host_name, (int)conn->port, FALSE, &addr);
rc = Curl_resolv(data, host_name, (int)conn->port, FALSE, &addr);
if(rc == CURLRESOLV_PENDING)
/* BLOCKING, ignores the return code but 'addr' will be NULL in
case of failure */
(void)Curl_resolver_wait_resolv(conn, &addr);
(void)Curl_resolver_wait_resolv(data, &addr);
connectport =
(unsigned short)conn->port; /* we connect to the proxy's port */
@ -1974,10 +1974,10 @@ static CURLcode ftp_state_pasv_resp(struct Curl_easy *data,
return CURLE_OUT_OF_MEMORY;
}
rc = Curl_resolv(conn, ftpc->newhost, ftpc->newport, FALSE, &addr);
rc = Curl_resolv(data, ftpc->newhost, ftpc->newport, FALSE, &addr);
if(rc == CURLRESOLV_PENDING)
/* BLOCKING */
(void)Curl_resolver_wait_resolv(conn, &addr);
(void)Curl_resolver_wait_resolv(data, &addr);
connectport = ftpc->newport; /* we connect to the remote port */

20
lib/hostasyn.c
View File

@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -66,25 +66,23 @@
*
* The storage operation locks and unlocks the DNS cache.
*/
CURLcode Curl_addrinfo_callback(struct connectdata *conn,
CURLcode Curl_addrinfo_callback(struct Curl_easy *data,
int status,
struct Curl_addrinfo *ai)
{
struct Curl_dns_entry *dns = NULL;
CURLcode result = CURLE_OK;
conn->async.status = status;
data->state.async.status = status;
if(CURL_ASYNC_SUCCESS == status) {
if(ai) {
struct Curl_easy *data = conn->data;
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
dns = Curl_cache_addr(data, ai,
conn->async.hostname,
conn->async.port);
data->state.async.hostname,
data->state.async.port);
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
@ -99,12 +97,12 @@ CURLcode Curl_addrinfo_callback(struct connectdata *conn,
}
}
conn->async.dns = dns;
data->state.async.dns = dns;
/* Set async.done TRUE last in this function since it may be used multi-
threaded and once this is TRUE the other thread may read fields from the
async struct */
conn->async.done = TRUE;
data->state.async.done = TRUE;
/* IPv4: The input hostent struct will be freed by ares when we return from
this function */
@ -117,12 +115,12 @@ CURLcode Curl_addrinfo_callback(struct connectdata *conn,
* name resolve layers (selected at build-time). They all take this same set
* of arguments
*/
struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
{
return Curl_resolver_getaddrinfo(conn, hostname, port, waitp);
return Curl_resolver_getaddrinfo(data, hostname, port, waitp);
}
#endif /* CURLRES_ASYNCH */

63
lib/hostip.c
View File

@ -253,14 +253,12 @@ sigjmp_buf curl_jmpenv;
#endif
/* lookup address, returns entry if found and not stale */
static struct Curl_dns_entry *
fetch_addr(struct connectdata *conn,
const char *hostname,
int port)
static struct Curl_dns_entry *fetch_addr(struct Curl_easy *data,
const char *hostname,
int port)
{
struct Curl_dns_entry *dns = NULL;
size_t entry_len;
struct Curl_easy *data = conn->data;
char entry_id[MAX_HOSTCACHE_LEN];
/* Create an entry id, based upon the hostname and port */
@ -321,7 +319,7 @@ Curl_fetch_addr(struct connectdata *conn,
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
dns = fetch_addr(conn, hostname, port);
dns = fetch_addr(data, hostname, port);
if(dns)
dns->inuse++; /* we use it! */
@ -480,16 +478,16 @@ Curl_cache_addr(struct Curl_easy *data,
* CURLRESOLV_PENDING (1) = waiting for response, no pointer
*/
enum resolve_t Curl_resolv(struct connectdata *conn,
enum resolve_t Curl_resolv(struct Curl_easy *data,
const char *hostname,
int port,
bool allowDOH,
struct Curl_dns_entry **entry)
{
struct Curl_dns_entry *dns = NULL;
struct Curl_easy *data = conn->data;
CURLcode result;
enum resolve_t rc = CURLRESOLV_ERROR; /* default to failure */
struct connectdata *conn = data->conn;
*entry = NULL;
conn->bits.doh = FALSE; /* default is not */
@ -497,7 +495,7 @@ enum resolve_t Curl_resolv(struct connectdata *conn,
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
dns = fetch_addr(conn, hostname, port);
dns = fetch_addr(data, hostname, port);
if(dns) {
infof(data, "Hostname %s was found in DNS cache\n", hostname);
@ -523,7 +521,7 @@ enum resolve_t Curl_resolv(struct connectdata *conn,
if(data->set.resolver_start) {
int st;
Curl_set_in_callback(data, true);
st = data->set.resolver_start(data->state.resolver, NULL,
st = data->set.resolver_start(data->state.async.resolver, NULL,
data->set.resolver_start_client);
Curl_set_in_callback(data, false);
if(st)
@ -569,13 +567,13 @@ enum resolve_t Curl_resolv(struct connectdata *conn,
return CURLRESOLV_ERROR;
if(allowDOH && data->set.doh && !ipnum) {
addr = Curl_doh(conn, hostname, port, &respwait);
addr = Curl_doh(data, hostname, port, &respwait);
}
else {
/* If Curl_getaddrinfo() returns NULL, 'respwait' might be set to a
non-zero value indicating that we need to wait for the response to
the resolve call */
addr = Curl_getaddrinfo(conn,
addr = Curl_getaddrinfo(data,
#ifdef DEBUGBUILD
(data->set.str[STRING_DEVICE]
&& !strcmp(data->set.str[STRING_DEVICE],
@ -589,7 +587,7 @@ enum resolve_t Curl_resolv(struct connectdata *conn,
/* the response to our resolve call will come asynchronously at
a later time, good or bad */
/* First, check that we haven't received the info by now */
result = Curl_resolv_check(conn, &dns);
result = Curl_resolv_check(data, &dns);
if(result) /* error detected */
return CURLRESOLV_ERROR;
if(dns)
@ -658,7 +656,7 @@ RETSIGTYPE alarmfunc(int sig)
* CURLRESOLV_PENDING (1) = waiting for response, no pointer
*/
enum resolve_t Curl_resolv_timeout(struct connectdata *conn,
enum resolve_t Curl_resolv_timeout(struct Curl_easy *data,
const char *hostname,
int port,
struct Curl_dns_entry **entry,
@ -676,7 +674,6 @@ enum resolve_t Curl_resolv_timeout(struct connectdata *conn,
#endif /* HAVE_SIGACTION */
volatile long timeout;
volatile unsigned int prev_alarm = 0;
struct Curl_easy *data = conn->data;
#endif /* USE_ALARM_TIMEOUT */
enum resolve_t rc;
@ -695,7 +692,7 @@ enum resolve_t Curl_resolv_timeout(struct connectdata *conn,
if(!timeout)
/* USE_ALARM_TIMEOUT defined, but no timeout actually requested */
return Curl_resolv(conn, hostname, port, TRUE, entry);
return Curl_resolv(data, hostname, port, TRUE, entry);
if(timeout < 1000) {
/* The alarm() function only provides integer second resolution, so if
@ -748,7 +745,7 @@ enum resolve_t Curl_resolv_timeout(struct connectdata *conn,
#else
#ifndef CURLRES_ASYNCH
if(timeoutms)
infof(conn->data, "timeout on name lookup is not supported\n");
infof(data, "timeout on name lookup is not supported\n");
#else
(void)timeoutms; /* timeoutms not used with an async resolver */
#endif
@ -757,7 +754,7 @@ enum resolve_t Curl_resolv_timeout(struct connectdata *conn,
/* Perform the actual name resolution. This might be interrupted by an
* alarm if it takes too long.
*/
rc = Curl_resolv(conn, hostname, port, TRUE, entry);
rc = Curl_resolv(data, hostname, port, TRUE, entry);
#ifdef USE_ALARM_TIMEOUT
clean_up:
@ -784,7 +781,7 @@ clean_up:
if(prev_alarm) {
/* there was an alarm() set before us, now put it back */
timediff_t elapsed_secs = Curl_timediff(Curl_now(),
conn->created) / 1000;
data->conn->created) / 1000;
/* the alarm period is counted in even number of seconds */
unsigned long alarm_set = (unsigned long)(prev_alarm - elapsed_secs);
@ -1068,29 +1065,29 @@ CURLcode Curl_loadhostpairs(struct Curl_easy *data)
return CURLE_OK;
}
CURLcode Curl_resolv_check(struct connectdata *conn,
CURLcode Curl_resolv_check(struct Curl_easy *data,
struct Curl_dns_entry **dns)
{
#if defined(CURL_DISABLE_DOH) && !defined(CURLRES_ASYNCH)
(void)dns;
#endif
if(conn->bits.doh)
return Curl_doh_is_resolved(conn, dns);
return Curl_resolver_is_resolved(conn, dns);
if(data->conn->bits.doh)
return Curl_doh_is_resolved(data, dns);
return Curl_resolver_is_resolved(data, dns);
}
int Curl_resolv_getsock(struct connectdata *conn,
int Curl_resolv_getsock(struct Curl_easy *data,
curl_socket_t *socks)
{
#ifdef CURLRES_ASYNCH
if(conn->bits.doh)
if(data->conn->bits.doh)
/* nothing to wait for during DOH resolve, those handles have their own
sockets */
return GETSOCK_BLANK;
return Curl_resolver_getsock(conn, socks);
return Curl_resolver_getsock(data, socks);
#else
(void)conn;
(void)data;
(void)socks;
return GETSOCK_BLANK;
#endif
@ -1101,21 +1098,19 @@ int Curl_resolv_getsock(struct connectdata *conn,
Note: this function disconnects and frees the conn data in case of
resolve failure */
CURLcode Curl_once_resolved(struct connectdata *conn,
bool *protocol_done)
CURLcode Curl_once_resolved(struct Curl_easy *data, bool *protocol_done)
{
CURLcode result;
struct connectdata *conn = data->conn;
if(conn->async.dns) {
conn->dns_entry = conn->async.dns;
conn->async.dns = NULL;
if(data->state.async.dns) {
conn->dns_entry = data->state.async.dns;
data->state.async.dns = NULL;
}
result = Curl_setup_conn(conn, protocol_done);
if(result) {
struct Curl_easy *data = conn->data;
DEBUGASSERT(data);
Curl_detach_connnection(data);
Curl_conncache_remove_conn(data, conn, TRUE);
Curl_disconnect(data, conn, TRUE);

15
lib/hostip.h
View File

@ -85,12 +85,12 @@ enum resolve_t {
CURLRESOLV_RESOLVED = 0,
CURLRESOLV_PENDING = 1
};
enum resolve_t Curl_resolv(struct connectdata *conn,
enum resolve_t Curl_resolv(struct Curl_easy *data,
const char *hostname,
int port,
bool allowDOH,
struct Curl_dns_entry **dnsentry);
enum resolve_t Curl_resolv_timeout(struct connectdata *conn,
enum resolve_t Curl_resolv_timeout(struct Curl_easy *data,
const char *hostname, int port,
struct Curl_dns_entry **dnsentry,
timediff_t timeoutms);
@ -117,7 +117,7 @@ bool Curl_ipvalid(struct Curl_easy *data, struct connectdata *conn);
* name resolve layers (selected at build-time). They all take this same set
* of arguments
*/
struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp);
@ -148,7 +148,7 @@ int curl_dogetnameinfo(GETNAMEINFO_QUAL_ARG1 GETNAMEINFO_TYPE_ARG1 sa,
/* IPv4 threadsafe resolve function used for synch and asynch builds */
struct Curl_addrinfo *Curl_ipv4_resolve_r(const char *hostname, int port);
CURLcode Curl_once_resolved(struct connectdata *conn, bool *protocol_connect);
CURLcode Curl_once_resolved(struct Curl_easy *data, bool *protocol_connect);
/*
* Curl_addrinfo_callback() is used when we build with any asynch specialty.
@ -156,7 +156,7 @@ CURLcode Curl_once_resolved(struct connectdata *conn, bool *protocol_connect);
* status is CURL_ASYNC_SUCCESS. Twiddles fields in conn to indicate async
* request completed whether successful or failed.
*/
CURLcode Curl_addrinfo_callback(struct connectdata *conn,
CURLcode Curl_addrinfo_callback(struct Curl_easy *data,
int status,
struct Curl_addrinfo *ai);
@ -240,10 +240,9 @@ void Curl_hostcache_clean(struct Curl_easy *data, struct Curl_hash *hash);
* Populate the cache with specified entries from CURLOPT_RESOLVE.
*/
CURLcode Curl_loadhostpairs(struct Curl_easy *data);
CURLcode Curl_resolv_check(struct connectdata *conn,
CURLcode Curl_resolv_check(struct Curl_easy *data,
struct Curl_dns_entry **dns);
int Curl_resolv_getsock(struct connectdata *conn,
int Curl_resolv_getsock(struct Curl_easy *data,
curl_socket_t *socks);
#endif /* HEADER_CURL_HOSTIP_H */

6
lib/hostip4.c
View File

@ -89,7 +89,7 @@ bool Curl_ipvalid(struct Curl_easy *data, struct connectdata *conn)
* flavours have thread-safe versions of the plain gethostbyname() etc.
*
*/
struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
@ -97,14 +97,14 @@ struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *ai = NULL;
#ifdef CURL_DISABLE_VERBOSE_STRINGS
(void)conn;
(void)data;
#endif
*waitp = 0; /* synchronous response only */
ai = Curl_ipv4_resolve_r(hostname, port);
if(!ai)
infof(conn->data, "Curl_ipv4_resolve_r failed for %s\n", hostname);
infof(data, "Curl_ipv4_resolve_r failed for %s\n", hostname);
return ai;
}

9
lib/hostip6.c
View File

@ -127,7 +127,7 @@ static void dump_addrinfo(struct connectdata *conn,
* memory we need to free after use. That memory *MUST* be freed with
* Curl_freeaddrinfo(), nothing else.
*/
struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
struct Curl_addrinfo *Curl_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
@ -141,14 +141,11 @@ struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
char addrbuf[128];
#endif
int pf;
#if !defined(CURL_DISABLE_VERBOSE_STRINGS)
struct Curl_easy *data = conn->data;
#endif
*waitp = 0; /* synchronous response only */
/* Check if a limited name resolve has been requested */
switch(conn->ip_version) {
switch(data->set.ipver) {
case CURL_IPRESOLVE_V4:
pf = PF_INET;
break;
@ -166,7 +163,7 @@ struct Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
memset(&hints, 0, sizeof(hints));
hints.ai_family = pf;
hints.ai_socktype = (conn->transport == TRNSPRT_TCP) ?
hints.ai_socktype = (data->conn->transport == TRNSPRT_TCP) ?
SOCK_STREAM : SOCK_DGRAM;
#ifndef USE_RESOLVE_ON_IPS

12
lib/multi.c
View File

@ -565,7 +565,7 @@ static CURLcode multi_done(struct Curl_easy *data,
conn->data = data; /* ensure the connection uses this transfer now */
/* Stop the resolver and free its own resources (but not dns_entry yet). */
Curl_resolver_kill(conn);
Curl_resolver_kill(data);
/* Cleanup possible redirect junk */
Curl_safefree(data->req.newurl);
@ -995,7 +995,7 @@ static int multi_getsock(struct Curl_easy *data,
return 0;
case CURLM_STATE_WAITRESOLVE:
return Curl_resolv_getsock(conn, socks);
return Curl_resolv_getsock(data, socks);
case CURLM_STATE_PROTOCONNECT:
case CURLM_STATE_SENDPROTOCONNECT:
@ -1733,15 +1733,15 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
if(dns) {
#ifdef CURLRES_ASYNCH
conn->async.dns = dns;
conn->async.done = TRUE;
data->state.async.dns = dns;
data->state.async.done = TRUE;
#endif
result = CURLE_OK;
infof(data, "Hostname '%s' was found in DNS cache\n", hostname);
}
if(!dns)
result = Curl_resolv_check(data->conn, &dns);
result = Curl_resolv_check(data, &dns);
/* Update sockets here, because the socket(s) may have been
closed and the application thus needs to be told, even if it
@ -1754,7 +1754,7 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
if(dns) {
/* Perform the next step in the connection phase, and then move on
to the WAITCONNECT state */
result = Curl_once_resolved(data->conn, &protocol_connected);
result = Curl_once_resolved(data, &protocol_connected);
if(result)
/* if Curl_once_resolved() returns failure, the connection struct

16
lib/socks.c
View File

@ -238,7 +238,7 @@ CURLproxycode Curl_SOCKS4(const char *proxy_user,
/* DNS resolve only for SOCKS4, not SOCKS4a */
if(!protocol4a) {
enum resolve_t rc =
Curl_resolv(conn, hostname, remote_port, FALSE, &dns);
Curl_resolv(data, hostname, remote_port, FALSE, &dns);
if(rc == CURLRESOLV_ERROR)
return CURLPX_RESOLVE_HOST;
@ -261,14 +261,14 @@ CURLproxycode Curl_SOCKS4(const char *proxy_user,
if(dns) {
#ifdef CURLRES_ASYNCH
conn->async.dns = dns;
conn->async.done = TRUE;
data->state.async.dns = dns;
data->state.async.done = TRUE;
#endif
infof(data, "Hostname '%s' was found\n", hostname);
sxstate(data, CONNECT_RESOLVED);
}
else {
result = Curl_resolv_check(data->conn, &dns);
result = Curl_resolv_check(data, &dns);
if(!dns) {
if(result)
return CURLPX_RESOLVE_HOST;
@ -754,7 +754,7 @@ CURLproxycode Curl_SOCKS5(const char *proxy_user,
CONNECT_REQ_INIT:
case CONNECT_REQ_INIT:
if(socks5_resolve_local) {
enum resolve_t rc = Curl_resolv(conn, hostname, remote_port,
enum resolve_t rc = Curl_resolv(data, hostname, remote_port,
FALSE, &dns);
if(rc == CURLRESOLV_ERROR)
@ -775,14 +775,14 @@ CURLproxycode Curl_SOCKS5(const char *proxy_user,
if(dns) {
#ifdef CURLRES_ASYNCH
conn->async.dns = dns;
conn->async.done = TRUE;
data->state.async.dns = dns;
data->state.async.done = TRUE;
#endif
infof(data, "SOCKS5: hostname '%s' found\n", hostname);
}
if(!dns) {
result = Curl_resolv_check(data->conn, &dns);
result = Curl_resolv_check(data, &dns);
if(!dns) {
if(result)
return CURLPX_RESOLVE_HOST;

12
lib/url.c
View File

@ -427,7 +427,7 @@ CURLcode Curl_close(struct Curl_easy **datap)
Curl_safefree(data->info.wouldredirect);
/* this destroys the channel and we cannot use it anymore after this */
Curl_resolver_cleanup(data->state.resolver);
Curl_resolver_cleanup(data->state.async.resolver);
Curl_http2_cleanup_dependencies(data);
Curl_convert_close(data);
@ -643,7 +643,7 @@ CURLcode Curl_open(struct Curl_easy **curl)
data->magic = CURLEASY_MAGIC_NUMBER;
result = Curl_resolver_init(data, &data->state.resolver);
result = Curl_resolver_init(data, &data->state.async.resolver);
if(result) {
DEBUGF(fprintf(stderr, "Error: resolver_init failed\n"));
free(data);
@ -664,7 +664,7 @@ CURLcode Curl_open(struct Curl_easy **curl)
}
if(result) {
Curl_resolver_cleanup(data->state.resolver);
Curl_resolver_cleanup(data->state.async.resolver);
Curl_dyn_free(&data->state.headerb);
Curl_freeset(data);
free(data);
@ -722,7 +722,7 @@ static void conn_shutdown(struct Curl_easy *data, struct connectdata *conn)
infof(data, "Closing connection %ld\n", conn->connection_id);
/* possible left-overs from the async name resolvers */
Curl_resolver_cancel(conn);
Curl_resolver_cancel(data);
/* close the SSL stuff before we close any sockets since they will/may
write to the sockets */
@ -3307,7 +3307,7 @@ static CURLcode resolve_server(struct Curl_easy *data,
conn->hostname_resolve = strdup(connhost->name);
if(!conn->hostname_resolve)
return CURLE_OUT_OF_MEMORY;
rc = Curl_resolv_timeout(conn, conn->hostname_resolve, (int)conn->port,
rc = Curl_resolv_timeout(data, conn->hostname_resolve, (int)conn->port,
&hostaddr, timeout_ms);
if(rc == CURLRESOLV_PENDING)
*async = TRUE;
@ -3332,7 +3332,7 @@ static CURLcode resolve_server(struct Curl_easy *data,
conn->hostname_resolve = strdup(host->name);
if(!conn->hostname_resolve)
return CURLE_OUT_OF_MEMORY;
rc = Curl_resolv_timeout(conn, conn->hostname_resolve, (int)conn->port,
rc = Curl_resolv_timeout(data, conn->hostname_resolve, (int)conn->port,
&hostaddr, timeout_ms);
if(rc == CURLRESOLV_PENDING)

19
lib/urldata.h
View File

@ -539,15 +539,21 @@ struct hostname {
#define KEEP_RECVBITS (KEEP_RECV | KEEP_RECV_HOLD | KEEP_RECV_PAUSE)
#define KEEP_SENDBITS (KEEP_SEND | KEEP_SEND_HOLD | KEEP_SEND_PAUSE)
#if defined(CURLRES_ASYNCH) || !defined(CURL_DISABLE_DOH)
#define USE_CURL_ASYNC
struct Curl_async {
char *hostname;
int port;
int status; /* if done is TRUE, this is the status from the callback */
struct Curl_dns_entry *dns;
struct thread_data *tdata;
void *resolver; /* resolver state, if it is used in the URL state -
ares_channel f.e. */
int port;
int status; /* if done is TRUE, this is the status from the callback */
BIT(done); /* set TRUE when the lookup is complete */
};
#endif
#define FIRSTSOCKET 0
#define SECONDARYSOCKET 1
@ -1093,9 +1099,6 @@ struct connectdata {
struct negotiatedata proxyneg; /* state data for proxy Negotiate auth */
#endif
/* data used for the asynch name resolve callback */
struct Curl_async async;
/* for chunked-encoded trailer */
struct dynbuf trailer;
@ -1330,7 +1333,6 @@ struct urlpieces {
struct UrlState {
/* Points to the connection cache */
struct conncache *conn_cache;
int retrycount; /* number of retries on a new connection */
/* buffers to store authentication data in, as parsed from input options */
@ -1365,8 +1367,9 @@ struct UrlState {
struct auth authhost; /* auth details for host */
struct auth authproxy; /* auth details for proxy */
void *resolver; /* resolver state, if it is used in the URL state -
ares_channel f.e. */
#ifdef USE_CURL_ASYNC
struct Curl_async async; /* asynchronous name resolver data */
#endif
#if defined(USE_OPENSSL)
/* void instead of ENGINE to avoid bleeding OpenSSL into this header */

2
tests/data/test1082
View File

@ -32,7 +32,7 @@ http
HTTP GET with localhost --interface
</name>
<command>
http://%HOSTIP:%HTTPPORT/1082 --interface localhost
http://%HOSTIP:%HTTPPORT/1082 -4 --interface localhost
</command>
<precheck>
perl -e "print 'Test requires default test client host address' if ( '%CLIENTIP' ne '127.0.0.1' );"