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3137. [func] Improve hardware scalability by allowing multiple

Browse Source 
worker threads to process incoming UDP packets.
			This can significantly increase query throughput
			on some systems.  [RT #22992]
This commit is contained in:
Evan Hunt 2011-07-28 04:04:37 +00:00
parent 8181aa6228
commit f07b2fccaf
17 changed files with 738 additions and 223 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
CHANGES
View File

@ -1,3 +1,8 @@
3137. [func] Improve hardware scalability by allowing multiple
worker threads to process incoming UDP packets.
This can significantly increase query throughput
on some systems. [RT #22992]
3136. [func] Add RFC 1918 reverse zones to the list of built-in
empty zones switched on by the 'empty-zones-enable'
option. [RT #24990]

111
bin/named/client.c
View File

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: client.c,v 1.273 2011/05/05 23:44:52 marka Exp $ */
/* $Id: client.c,v 1.274 2011/07/28 04:04:36 each Exp $ */
#include <config.h>
@ -2530,8 +2530,10 @@ ns_clientmgr_createclients(ns_clientmgr_t *manager, unsigned int n,
ns_interface_t *ifp, isc_boolean_t tcp)
{
isc_result_t result = ISC_R_SUCCESS;
isc_boolean_t success = ISC_FALSE;
unsigned int i;
ns_client_t *client;
unsigned int disp;
REQUIRE(VALID_MANAGER(manager));
REQUIRE(n > 0);
@ -2546,61 +2548,68 @@ ns_clientmgr_createclients(ns_clientmgr_t *manager, unsigned int n,
LOCK(&manager->lock);
for (i = 0; i < n; i++) {
isc_event_t *ev;
/*
* Allocate a client. First try to get a recycled one;
* if that fails, make a new one.
*/
client = NULL;
if (!ns_g_clienttest)
client = ISC_LIST_HEAD(manager->inactive);
if (client != NULL) {
MTRACE("recycle");
ISC_LIST_UNLINK(manager->inactive, client, link);
client->list = NULL;
} else {
MTRACE("create new");
result = client_create(manager, &client);
if (result != ISC_R_SUCCESS)
break;
for (disp = 0; disp < n; disp++) {
for (i = 0; i < n; i++) {
isc_event_t *ev;
/*
* Allocate a client. First try to get a recycled one;
* if that fails, make a new one.
*/
client = NULL;
if (!ns_g_clienttest)
client = ISC_LIST_HEAD(manager->inactive);
if (client != NULL) {
MTRACE("recycle");
ISC_LIST_UNLINK(manager->inactive, client,
link);
client->list = NULL;
} else {
MTRACE("create new");
result = client_create(manager, &client);
if (result != ISC_R_SUCCESS)
break;
}
ns_interface_attach(ifp, &client->interface);
client->state = NS_CLIENTSTATE_READY;
INSIST(client->recursionquota == NULL);
if (tcp) {
client->attributes |= NS_CLIENTATTR_TCP;
isc_socket_attach(ifp->tcpsocket,
&client->tcplistener);
} else {
isc_socket_t *sock;
dns_dispatch_attach(ifp->udpdispatch[disp],
&client->dispatch);
sock = dns_dispatch_getsocket(client->dispatch);
isc_socket_attach(sock, &client->udpsocket);
}
client->manager = manager;
ISC_LIST_APPEND(manager->active, client, link);
client->list = &manager->active;
INSIST(client->nctls == 0);
client->nctls++;
ev = &client->ctlevent;
isc_task_send(client->task, &ev);
success = ISC_TRUE;
}
ns_interface_attach(ifp, &client->interface);
client->state = NS_CLIENTSTATE_READY;
INSIST(client->recursionquota == NULL);
if (tcp) {
client->attributes |= NS_CLIENTATTR_TCP;
isc_socket_attach(ifp->tcpsocket,
&client->tcplistener);
} else {
isc_socket_t *sock;
dns_dispatch_attach(ifp->udpdispatch,
&client->dispatch);
sock = dns_dispatch_getsocket(client->dispatch);
isc_socket_attach(sock, &client->udpsocket);
}
client->manager = manager;
ISC_LIST_APPEND(manager->active, client, link);
client->list = &manager->active;
INSIST(client->nctls == 0);
client->nctls++;
ev = &client->ctlevent;
isc_task_send(client->task, &ev);
}
if (i != 0) {
/*
* We managed to create at least one client, so we
* declare victory.
*/
result = ISC_R_SUCCESS;
}
UNLOCK(&manager->lock);
/*
* If managed to create at least one client for
* one dispatch, we declare victory.
*/
if (success)
return (ISC_R_SUCCESS);
return (result);
}

9
bin/named/include/named/interfacemgr.h
View File

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: interfacemgr.h,v 1.33 2007/06/19 23:46:59 tbox Exp $ */
/* $Id: interfacemgr.h,v 1.34 2011/07/28 04:04:36 each Exp $ */
#ifndef NAMED_INTERFACEMGR_H
#define NAMED_INTERFACEMGR_H 1
@ -65,7 +65,8 @@
#define NS_INTERFACE_VALID(t) ISC_MAGIC_VALID(t, IFACE_MAGIC)
#define NS_INTERFACEFLAG_ANYADDR 0x01U /*%< bound to "any" address */
#define MAX_UDP_DISPATCH 128 /*%< Maximum number of UDP dispatchers
to start per interface */
/*% The nameserver interface structure */
struct ns_interface {
unsigned int magic; /*%< Magic number. */
@ -76,11 +77,13 @@ struct ns_interface {
isc_sockaddr_t addr; /*%< Address and port. */
unsigned int flags; /*%< Interface characteristics */
char name[32]; /*%< Null terminated. */
dns_dispatch_t * udpdispatch; /*%< UDP dispatcher. */
dns_dispatch_t * udpdispatch[MAX_UDP_DISPATCH];
/*%< UDP dispatchers. */
isc_socket_t * tcpsocket; /*%< TCP socket. */
int ntcptarget; /*%< Desired number of concurrent
TCP accepts */
int ntcpcurrent; /*%< Current ditto, locked */
int nudpdispatch; /*%< Number of UDP dispatches */
ns_clientmgr_t * clientmgr; /*%< Client manager. */
ISC_LINK(ns_interface_t) link;
};

60
bin/named/interfacemgr.c
View File

@ -15,13 +15,14 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: interfacemgr.c,v 1.97 2011/03/12 04:59:46 tbox Exp $ */
/* $Id: interfacemgr.c,v 1.98 2011/07/28 04:04:36 each Exp $ */
/*! \file */
#include <config.h>
#include <isc/interfaceiter.h>
#include <isc/os.h>
#include <isc/string.h>
#include <isc/task.h>
#include <isc/util.h>
@ -195,6 +196,7 @@ ns_interface_create(ns_interfacemgr_t *mgr, isc_sockaddr_t *addr,
strncpy(ifp->name, name, sizeof(ifp->name));
ifp->name[sizeof(ifp->name)-1] = '\0';
ifp->clientmgr = NULL;
int disp;
result = isc_mutex_init(&ifp->lock);
if (result != ISC_R_SUCCESS)
@ -210,7 +212,8 @@ ns_interface_create(ns_interfacemgr_t *mgr, isc_sockaddr_t *addr,
goto clientmgr_create_failure;
}
ifp->udpdispatch = NULL;
for (disp = 0; disp < MAX_UDP_DISPATCH; disp++)
ifp->udpdispatch[disp] = NULL;
ifp->tcpsocket = NULL;
/*
@ -221,6 +224,7 @@ ns_interface_create(ns_interfacemgr_t *mgr, isc_sockaddr_t *addr,
*/
ifp->ntcptarget = 1;
ifp->ntcpcurrent = 0;
ifp->nudpdispatch = 0;
ISC_LINK_INIT(ifp, link);
@ -247,6 +251,7 @@ ns_interface_listenudp(ns_interface_t *ifp) {
isc_result_t result;
unsigned int attrs;
unsigned int attrmask;
int disp, i;
attrs = 0;
attrs |= DNS_DISPATCHATTR_UDP;
@ -258,15 +263,25 @@ ns_interface_listenudp(ns_interface_t *ifp) {
attrmask = 0;
attrmask |= DNS_DISPATCHATTR_UDP | DNS_DISPATCHATTR_TCP;
attrmask |= DNS_DISPATCHATTR_IPV4 | DNS_DISPATCHATTR_IPV6;
result = dns_dispatch_getudp(ifp->mgr->dispatchmgr, ns_g_socketmgr,
ns_g_taskmgr, &ifp->addr,
4096, 1000, 32768, 8219, 8237,
attrs, attrmask, &ifp->udpdispatch);
if (result != ISC_R_SUCCESS) {
isc_log_write(IFMGR_COMMON_LOGARGS, ISC_LOG_ERROR,
"could not listen on UDP socket: %s",
isc_result_totext(result));
goto udp_dispatch_failure;
ifp->nudpdispatch = ISC_MIN(isc_os_ncpus(), MAX_UDP_DISPATCH);
for (disp = 0; disp < ifp->nudpdispatch; disp++) {
result = dns_dispatch_getudp_dup(ifp->mgr->dispatchmgr,
ns_g_socketmgr,
ns_g_taskmgr, &ifp->addr,
4096, 1000, 32768, 8219, 8237,
attrs, attrmask,
&ifp->udpdispatch[disp],
disp == 0
? NULL
: ifp->udpdispatch[0]);
if (result != ISC_R_SUCCESS) {
isc_log_write(IFMGR_COMMON_LOGARGS, ISC_LOG_ERROR,
"could not listen on UDP socket: %s",
isc_result_totext(result));
goto udp_dispatch_failure;
}
}
result = ns_clientmgr_createclients(ifp->clientmgr, ns_g_cpus,
@ -277,12 +292,17 @@ ns_interface_listenudp(ns_interface_t *ifp) {
isc_result_totext(result));
goto addtodispatch_failure;
}
return (ISC_R_SUCCESS);
addtodispatch_failure:
dns_dispatch_changeattributes(ifp->udpdispatch, 0,
DNS_DISPATCHATTR_NOLISTEN);
dns_dispatch_detach(&ifp->udpdispatch);
for (i = disp - 1; i <= 0; i--) {
dns_dispatch_changeattributes(ifp->udpdispatch[i], 0,
DNS_DISPATCHATTR_NOLISTEN);
dns_dispatch_detach(&(ifp->udpdispatch[i]));
}
ifp->nudpdispatch = 0;
udp_dispatch_failure:
return (result);
}
@ -397,14 +417,16 @@ static void
ns_interface_destroy(ns_interface_t *ifp) {
isc_mem_t *mctx = ifp->mgr->mctx;
REQUIRE(NS_INTERFACE_VALID(ifp));
int disp;
ns_interface_shutdown(ifp);
if (ifp->udpdispatch != NULL) {
dns_dispatch_changeattributes(ifp->udpdispatch, 0,
DNS_DISPATCHATTR_NOLISTEN);
dns_dispatch_detach(&ifp->udpdispatch);
}
for (disp = ifp->nudpdispatch; disp >= 0; disp--)
if (ifp->udpdispatch[disp] != NULL) {
dns_dispatch_changeattributes(ifp->udpdispatch[disp], 0,
DNS_DISPATCHATTR_NOLISTEN);
dns_dispatch_detach(&(ifp->udpdispatch[disp]));
}
if (ifp->tcpsocket != NULL)
isc_socket_detach(&ifp->tcpsocket);

4
configure.in
View File

@ -18,7 +18,7 @@ AC_DIVERT_PUSH(1)dnl
esyscmd([sed "s/^/# /" COPYRIGHT])dnl
AC_DIVERT_POP()dnl
AC_REVISION($Revision: 1.528 $)
AC_REVISION($Revision: 1.529 $)
AC_INIT(lib/dns/name.c)
AC_PREREQ(2.59)
@ -2552,7 +2552,7 @@ yes)
esac
AC_SUBST(ISC_PLATFORM_HAVEIFNAMETOINDEX)
AC_CHECK_FUNCS(nanosleep)
AC_CHECK_FUNCS(nanosleep usleep)
#
# Machine architecture dependent features

131
lib/dns/dispatch.c
View File

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: dispatch.c,v 1.172 2011/04/06 10:27:16 marka Exp $ */
/* $Id: dispatch.c,v 1.173 2011/07/28 04:04:36 each Exp $ */
/*! \file */
@ -312,14 +312,16 @@ static isc_result_t get_udpsocket(dns_dispatchmgr_t *mgr,
dns_dispatch_t *disp,
isc_socketmgr_t *sockmgr,
isc_sockaddr_t *localaddr,
isc_socket_t **sockp);
isc_socket_t **sockp,
isc_socket_t *dup_socket);
static isc_result_t dispatch_createudp(dns_dispatchmgr_t *mgr,
isc_socketmgr_t *sockmgr,
isc_taskmgr_t *taskmgr,
isc_sockaddr_t *localaddr,
unsigned int maxrequests,
unsigned int attributes,
dns_dispatch_t **dispp);
dns_dispatch_t **dispp,
isc_socket_t *dup_socket);
static isc_boolean_t destroy_mgr_ok(dns_dispatchmgr_t *mgr);
static void destroy_mgr(dns_dispatchmgr_t **mgrp);
static isc_result_t qid_allocate(dns_dispatchmgr_t *mgr, unsigned int buckets,
@ -327,7 +329,8 @@ static isc_result_t qid_allocate(dns_dispatchmgr_t *mgr, unsigned int buckets,
isc_boolean_t needaddrtable);
static void qid_destroy(isc_mem_t *mctx, dns_qid_t **qidp);
static isc_result_t open_socket(isc_socketmgr_t *mgr, isc_sockaddr_t *local,
unsigned int options, isc_socket_t **sockp);
unsigned int options, isc_socket_t **sockp,
isc_socket_t *dup_socket);
static isc_boolean_t portavailable(dns_dispatchmgr_t *mgr, isc_socket_t *sock,
isc_sockaddr_t *sockaddrp);
@ -902,7 +905,8 @@ get_dispsocket(dns_dispatch_t *disp, isc_sockaddr_t *dest,
portentry = port_search(disp, port);
if (portentry != NULL)
bindoptions |= ISC_SOCKET_REUSEADDRESS;
result = open_socket(sockmgr, &localaddr, bindoptions, &sock);
result = open_socket(sockmgr, &localaddr, bindoptions, &sock,
NULL);
if (result == ISC_R_SUCCESS) {
if (portentry == NULL) {
portentry = new_portentry(disp, port);
@ -1787,19 +1791,14 @@ destroy_mgr(dns_dispatchmgr_t **mgrp) {
static isc_result_t
open_socket(isc_socketmgr_t *mgr, isc_sockaddr_t *local,
unsigned int options, isc_socket_t **sockp)
unsigned int options, isc_socket_t **sockp,
isc_socket_t *dup_socket)
{
isc_socket_t *sock;
isc_result_t result;
sock = *sockp;
if (sock == NULL) {
result = isc_socket_create(mgr, isc_sockaddr_pf(local),
isc_sockettype_udp, &sock);
if (result != ISC_R_SUCCESS)
return (result);
isc_socket_setname(sock, "dispatcher", NULL);
} else {
if (sock != NULL) {
#ifdef BIND9
result = isc_socket_open(sock);
if (result != ISC_R_SUCCESS)
@ -1807,8 +1806,19 @@ open_socket(isc_socketmgr_t *mgr, isc_sockaddr_t *local,
#else
INSIST(0);
#endif
} else if (dup_socket != NULL) {
result = isc_socket_dup(dup_socket, &sock);
if (result != ISC_R_SUCCESS)
return (result);
} else {
result = isc_socket_create(mgr, isc_sockaddr_pf(local),
isc_sockettype_udp, &sock);
if (result != ISC_R_SUCCESS)
return (result);
}
isc_socket_setname(sock, "dispatcher", NULL);
#ifndef ISC_ALLOW_MAPPED
isc_socket_ipv6only(sock, ISC_TRUE);
#endif
@ -2646,13 +2656,13 @@ dns_dispatch_createtcp(dns_dispatchmgr_t *mgr, isc_socket_t *sock,
}
isc_result_t
dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
dns_dispatch_getudp_dup(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
isc_taskmgr_t *taskmgr, isc_sockaddr_t *localaddr,
unsigned int buffersize,
unsigned int maxbuffers, unsigned int maxrequests,
unsigned int buckets, unsigned int increment,
unsigned int attributes, unsigned int mask,
dns_dispatch_t **dispp)
dns_dispatch_t **dispp, dns_dispatch_t *dup_dispatch)
{
isc_result_t result;
dns_dispatch_t *disp = NULL;
@ -2683,28 +2693,31 @@ dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
/*
* See if we have a dispatcher that matches.
*/
result = dispatch_find(mgr, localaddr, attributes, mask, &disp);
if (result == ISC_R_SUCCESS) {
disp->refcount++;
if (dup_dispatch == NULL) {
result = dispatch_find(mgr, localaddr, attributes, mask, &disp);
if (result == ISC_R_SUCCESS) {
disp->refcount++;
if (disp->maxrequests < maxrequests)
disp->maxrequests = maxrequests;
if (disp->maxrequests < maxrequests)
disp->maxrequests = maxrequests;
if ((disp->attributes & DNS_DISPATCHATTR_NOLISTEN) == 0 &&
(attributes & DNS_DISPATCHATTR_NOLISTEN) != 0)
{
disp->attributes |= DNS_DISPATCHATTR_NOLISTEN;
if (disp->recv_pending != 0)
isc_socket_cancel(disp->socket, disp->task[0],
ISC_SOCKCANCEL_RECV);
if ((disp->attributes & DNS_DISPATCHATTR_NOLISTEN) == 0
&& (attributes & DNS_DISPATCHATTR_NOLISTEN) != 0)
{
disp->attributes |= DNS_DISPATCHATTR_NOLISTEN;
if (disp->recv_pending != 0)
isc_socket_cancel(disp->socket,
disp->task[0],
ISC_SOCKCANCEL_RECV);
}
UNLOCK(&disp->lock);
UNLOCK(&mgr->lock);
*dispp = disp;
return (ISC_R_SUCCESS);
}
UNLOCK(&disp->lock);
UNLOCK(&mgr->lock);
*dispp = disp;
return (ISC_R_SUCCESS);
}
createudp:
@ -2712,7 +2725,11 @@ dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
* Nope, create one.
*/
result = dispatch_createudp(mgr, sockmgr, taskmgr, localaddr,
maxrequests, attributes, &disp);
maxrequests, attributes, &disp,
dup_dispatch == NULL
? NULL
: dup_dispatch->socket);
if (result != ISC_R_SUCCESS) {
UNLOCK(&mgr->lock);
return (result);
@ -2720,9 +2737,24 @@ dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
UNLOCK(&mgr->lock);
*dispp = disp;
return (ISC_R_SUCCESS);
}
isc_result_t
dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
isc_taskmgr_t *taskmgr, isc_sockaddr_t *localaddr,
unsigned int buffersize,
unsigned int maxbuffers, unsigned int maxrequests,
unsigned int buckets, unsigned int increment,
unsigned int attributes, unsigned int mask,
dns_dispatch_t **dispp)
{
return dns_dispatch_getudp_dup(mgr, sockmgr, taskmgr, localaddr,
buffersize, maxbuffers, maxrequests, buckets, increment,
attributes, mask, dispp, NULL);
}
/*
* mgr should be locked.
*/
@ -2734,7 +2766,7 @@ dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
static isc_result_t
get_udpsocket(dns_dispatchmgr_t *mgr, dns_dispatch_t *disp,
isc_socketmgr_t *sockmgr, isc_sockaddr_t *localaddr,
isc_socket_t **sockp)
isc_socket_t **sockp, isc_socket_t *dup_socket)
{
unsigned int i, j;
isc_socket_t *held[DNS_DISPATCH_HELD];
@ -2774,7 +2806,7 @@ get_udpsocket(dns_dispatchmgr_t *mgr, dns_dispatch_t *disp,
nports)];
isc_sockaddr_setport(&localaddr_bound, prt);
result = open_socket(sockmgr, &localaddr_bound,
0, &sock);
0, &sock, NULL);
if (result == ISC_R_SUCCESS ||
result != ISC_R_ADDRINUSE) {
disp->localport = prt;
@ -2790,7 +2822,8 @@ get_udpsocket(dns_dispatchmgr_t *mgr, dns_dispatch_t *disp,
} else {
/* Allow to reuse address for non-random ports. */
result = open_socket(sockmgr, localaddr,
ISC_SOCKET_REUSEADDRESS, &sock);
ISC_SOCKET_REUSEADDRESS, &sock,
dup_socket);
if (result == ISC_R_SUCCESS)
*sockp = sock;
@ -2802,7 +2835,7 @@ get_udpsocket(dns_dispatchmgr_t *mgr, dns_dispatch_t *disp,
i = 0;
for (j = 0; j < 0xffffU; j++) {
result = open_socket(sockmgr, localaddr, 0, &sock);
result = open_socket(sockmgr, localaddr, 0, &sock, NULL);
if (result != ISC_R_SUCCESS)
goto end;
else if (!anyport)
@ -2841,7 +2874,8 @@ dispatch_createudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
isc_sockaddr_t *localaddr,
unsigned int maxrequests,
unsigned int attributes,
dns_dispatch_t **dispp)
dns_dispatch_t **dispp,
isc_socket_t *dup_socket)
{
isc_result_t result;
dns_dispatch_t *disp;
@ -2857,9 +2891,21 @@ dispatch_createudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
return (result);
if ((attributes & DNS_DISPATCHATTR_EXCLUSIVE) == 0) {
result = get_udpsocket(mgr, disp, sockmgr, localaddr, &sock);
result = get_udpsocket(mgr, disp, sockmgr, localaddr, &sock,
dup_socket);
if (result != ISC_R_SUCCESS)
goto deallocate_dispatch;
if (isc_log_wouldlog(dns_lctx, 90)) {
char addrbuf[ISC_SOCKADDR_FORMATSIZE];
isc_sockaddr_format(localaddr, addrbuf,
ISC_SOCKADDR_FORMATSIZE);
mgr_log(mgr, LVL(90), "dns_dispatch_createudp: Created"
" UDP dispatch for %s with socket fd %d\n",
addrbuf, isc_socket_getfd(sock));
}
} else {
isc_sockaddr_t sa_any;
@ -2871,7 +2917,7 @@ dispatch_createudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
*/
isc_sockaddr_anyofpf(&sa_any, isc_sockaddr_pf(localaddr));
if (!isc_sockaddr_eqaddr(&sa_any, localaddr)) {
result = open_socket(sockmgr, localaddr, 0, &sock);
result = open_socket(sockmgr, localaddr, 0, &sock, NULL);
if (sock != NULL)
isc_socket_detach(&sock);
if (result != ISC_R_SUCCESS)
@ -2938,6 +2984,7 @@ dispatch_createudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
dispatch_log(disp, LVL(90), "created socket %p", disp->socket);
*dispp = disp;
return (result);
/*

11
lib/dns/include/dns/dispatch.h
View File

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: dispatch.h,v 1.62 2009/01/27 23:47:54 tbox Exp $ */
/* $Id: dispatch.h,v 1.63 2011/07/28 04:04:37 each Exp $ */
#ifndef DNS_DISPATCH_H
#define DNS_DISPATCH_H 1
@ -245,6 +245,15 @@ dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
unsigned int buckets, unsigned int increment,
unsigned int attributes, unsigned int mask,
dns_dispatch_t **dispp);
isc_result_t
dns_dispatch_getudp_dup(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr,
isc_taskmgr_t *taskmgr, isc_sockaddr_t *localaddr,
unsigned int buffersize,
unsigned int maxbuffers, unsigned int maxrequests,
unsigned int buckets, unsigned int increment,
unsigned int attributes, unsigned int mask,
dns_dispatch_t **dispp, dns_dispatch_t *dup);
/*%<
* Attach to existing dns_dispatch_t if one is found with dns_dispatchmgr_find,
* otherwise create a new UDP dispatch.

3
lib/isc/include/isc/namespace.h
View File

@ -14,7 +14,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: namespace.h,v 1.9 2010/12/04 13:25:59 marka Exp $ */
/* $Id: namespace.h,v 1.10 2011/07/28 04:04:37 each Exp $ */
#ifndef ISCAPI_NAMESPACE_H
#define ISCAPI_NAMESPACE_H 1
@ -88,6 +88,7 @@
#define isc_mempool_getfillcount isc__mempool_getfillcount
#define isc_socket_create isc__socket_create
#define isc_socket_dup isc__socket_dup
#define isc_socket_attach isc__socket_attach
#define isc_socket_detach isc__socket_detach
#define isc_socketmgr_create isc__socketmgr_create

13
lib/isc/include/isc/socket.h
View File

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: socket.h,v 1.94 2009/10/01 01:30:01 sar Exp $ */
/* $Id: socket.h,v 1.95 2011/07/28 04:04:37 each Exp $ */
#ifndef ISC_SOCKET_H
#define ISC_SOCKET_H 1
@ -449,6 +449,12 @@ isc_socket_create(isc_socketmgr_t *manager,
*\li #ISC_R_UNEXPECTED
*/
isc_result_t
isc_socket_dup(isc_socket_t *sock0, isc_socket_t **socketp);
/*%<
* Duplicate an existing socket, reusing its file descriptor.
*/
void
isc_socket_cancel(isc_socket_t *sock, isc_task_t *task,
unsigned int how);
@ -1102,6 +1108,11 @@ void *isc_socket_gettag(isc_socket_t *socket);
* Get the tag associated with a socket, if any.
*/
int isc_socket_getfd(isc_socket_t *socket);
/*%<
* Get the file descriptor associated with a socket
*/
void
isc__socketmgr_setreserved(isc_socketmgr_t *mgr, isc_uint32_t);
/*%<

10
lib/isc/tests/Makefile.in
View File

@ -12,7 +12,7 @@
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
# $Id: Makefile.in,v 1.2 2011/07/06 05:05:51 each Exp $
# $Id: Makefile.in,v 1.3 2011/07/28 04:04:37 each Exp $
srcdir = @srcdir@
VPATH = @srcdir@
@ -35,10 +35,10 @@ ISCDEPLIBS = ../libisc.@A@
LIBS = @LIBS@ @ATFLIBS@
OBJS = isctest.@O@
SRCS = isctest.c taskpool_test.c
SRCS = isctest.c taskpool_test.c socket_test.c
SUBDIRS =
TARGETS = taskpool_test@EXEEXT@
TARGETS = taskpool_test@EXEEXT@ socket_test@EXEEXT@
@BIND9_MAKE_RULES@
@ -46,5 +46,9 @@ taskpool_test@EXEEXT@: taskpool_test.@O@ isctest.@O@ ${ISCDEPLIBS}
${LIBTOOL_MODE_LINK} ${PURIFY} ${CC} ${CFLAGS} ${LDFLAGS} -o $@ \
taskpool_test.@O@ isctest.@O@ ${ISCLIBS} ${LIBS}
socket_test@EXEEXT@: socket_test.@O@ isctest.@O@ ${ISCDEPLIBS}
${LIBTOOL_MODE_LINK} ${PURIFY} ${CC} ${CFLAGS} ${LDFLAGS} -o $@ \
socket_test.@O@ isctest.@O@ ${ISCLIBS} ${LIBS}
clean distclean::
rm -f ${TARGETS}

44
lib/isc/tests/isctest.c
View File

@ -14,7 +14,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: isctest.c,v 1.2 2011/07/06 05:05:52 each Exp $ */
/* $Id: isctest.c,v 1.3 2011/07/28 04:04:37 each Exp $ */
/*! \file */
@ -26,7 +26,10 @@
#include <isc/hash.h>
#include <isc/mem.h>
#include <isc/os.h>
#include <isc/socket.h>
#include <isc/string.h>
#include <isc/task.h>
#include <isc/timer.h>
#include <isc/util.h>
#include "isctest.h"
@ -35,6 +38,8 @@ isc_mem_t *mctx = NULL;
isc_entropy_t *ectx = NULL;
isc_log_t *lctx = NULL;
isc_taskmgr_t *taskmgr = NULL;
isc_timermgr_t *timermgr = NULL;
isc_socketmgr_t *socketmgr = NULL;
int ncpus;
static isc_boolean_t hash_active = ISC_FALSE;
@ -54,8 +59,37 @@ static isc_logcategory_t categories[] = {
{ NULL, 0 }
};
static void
cleanup_managers() {
if (socketmgr != NULL)
isc_socketmgr_destroy(&socketmgr);
if (taskmgr != NULL)
isc_taskmgr_destroy(&taskmgr);
if (timermgr != NULL)
isc_timermgr_destroy(&timermgr);
}
static isc_result_t
create_managers() {
isc_result_t result;
#ifdef ISC_PLATFORM_USETHREADS
ncpus = isc_os_ncpus();
#else
ncpus = 1;
#endif
CHECK(isc_taskmgr_create(mctx, ncpus, 0, &taskmgr));
CHECK(isc_timermgr_create(mctx, &timermgr));
CHECK(isc_socketmgr_create(mctx, &socketmgr));
return (ISC_R_SUCCESS);
cleanup:
cleanup_managers();
return (result);
}
isc_result_t
isc_test_begin(FILE *logfile) {
isc_test_begin(FILE *logfile, isc_boolean_t start_managers) {
isc_result_t result;
isc_mem_debugging |= ISC_MEM_DEBUGRECORD;
@ -90,7 +124,8 @@ isc_test_begin(FILE *logfile) {
ncpus = 1;
#endif
CHECK(isc_taskmgr_create(mctx, ncpus, 0, &taskmgr));
if (start_managers)
CHECK(create_managers());
return (ISC_R_SUCCESS);
@ -111,6 +146,9 @@ isc_test_end() {
}
if (ectx != NULL)
isc_entropy_detach(&ectx);
cleanup_managers();
if (mctx != NULL)
isc_mem_destroy(&mctx);
}

6
lib/isc/tests/isctest.h
View File

@ -14,7 +14,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: isctest.h,v 1.2 2011/07/06 05:05:52 each Exp $ */
/* $Id: isctest.h,v 1.3 2011/07/28 04:04:37 each Exp $ */
/*! \file */
@ -42,10 +42,12 @@ extern isc_mem_t *mctx;
extern isc_entropy_t *ectx;
extern isc_log_t *lctx;
extern isc_taskmgr_t *taskmgr;
isc_timermgr_t *timermgr;
isc_socketmgr_t *socketmgr;
extern int ncpus;
isc_result_t
isc_test_begin(FILE *logfile);
isc_test_begin(FILE *logfile, isc_boolean_t start_managers);
void
isc_test_end(void);

274
lib/isc/tests/socket_test.c Normal file
View File

@ -0,0 +1,274 @@
/*
* Copyright (C) 2011 Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: socket_test.c,v 1.2 2011/07/28 04:04:37 each Exp $ */
/*! \file */
#include <config.h>
#include <atf-c.h>
#include <unistd.h>
#include <time.h>
#include <isc/socket.h>
#include "../task_p.h"
#include "isctest.h"
/*
* Helper functions
*/
typedef struct {
isc_boolean_t done;
isc_result_t result;
} completion_t;
static void
completion_init(completion_t *completion) {
completion->done = ISC_FALSE;
}
static void
event_done(isc_task_t *task, isc_event_t *event) {
isc_socketevent_t *dev;
completion_t *completion = event->ev_arg;
UNUSED(task);
dev = (isc_socketevent_t *) event;
completion->result = dev->result;
completion->done = ISC_TRUE;
isc_event_free(&event);
}
static void
nap(isc_uint32_t usec) {
#ifdef HAVE_NANOSLEEP
struct timespec ts;
ts.tv_sec = usec / 1000000;
ts.tv_nsec = (usec % 1000000) * 1000;
nanosleep(&ts, NULL);
#elif HAVE_USLEEP
usleep(usec);
#else
/* Round up to the nearest second and sleep, instead */
sleep((usec / 1000000) + 1);
#endif
}
static isc_result_t
waitfor(completion_t *completion) {
int i = 0;
while (!completion->done && i++ < 5000) {
#ifndef ISC_PLATFORM_USETHREADS
while (isc__taskmgr_ready(taskmgr))
isc__taskmgr_dispatch(taskmgr);
#endif
nap(1000);
}
if (completion->done)
return (ISC_R_SUCCESS);
return (ISC_R_FAILURE);
}
/*
* Individual unit tests
*/
/* Test UDP sendto/recv (IPv4) */
ATF_TC(udp_sendto);
ATF_TC_HEAD(udp_sendto, tc) {
atf_tc_set_md_var(tc, "descr", "UDP sendto/recv");
}
ATF_TC_BODY(udp_sendto, tc) {
isc_result_t result;
isc_sockaddr_t addr1, addr2;
struct in_addr in;
isc_socket_t *s1 = NULL, *s2 = NULL;
isc_task_t *task = NULL;
char sendbuf[BUFSIZ], recvbuf[BUFSIZ];
completion_t completion;
isc_region_t r;
UNUSED(tc);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
/*
* Create two sockets: 127.0.0.1/5444 and 127.0.0.1/5445, talking to
* each other.
*/
in.s_addr = inet_addr("127.0.0.1");
isc_sockaddr_fromin(&addr1, &in, 5444);
isc_sockaddr_fromin(&addr2, &in, 5445);
result = isc_socket_create(socketmgr, PF_INET, isc_sockettype_udp, &s1);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_bind(s1, &addr1, ISC_SOCKET_REUSEADDRESS);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_create(socketmgr, PF_INET, isc_sockettype_udp, &s2);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_bind(s2, &addr2, ISC_SOCKET_REUSEADDRESS);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_task_create(taskmgr, 0, &task);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
strcpy(sendbuf, "Hello");
r.base = (void *) sendbuf;
r.length = strlen(sendbuf) + 1;
completion_init(&completion);
result = isc_socket_sendto(s1, &r, task, event_done, &completion,
&addr2, NULL);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
waitfor(&completion);
ATF_CHECK(completion.done);
ATF_CHECK_EQ(completion.result, ISC_R_SUCCESS);
r.base = (void *) recvbuf;
r.length = BUFSIZ;
completion_init(&completion);
result = isc_socket_recv(s2, &r, 1, task, event_done, &completion);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
waitfor(&completion);
ATF_CHECK(completion.done);
ATF_CHECK_EQ(completion.result, ISC_R_SUCCESS);
ATF_CHECK_STREQ(recvbuf, "Hello");
isc_task_detach(&task);
isc_socket_detach(&s1);
isc_socket_detach(&s2);
isc_test_end();
}
/* Test UDP sendto/recv with duplicated socket */
ATF_TC(udp_dup);
ATF_TC_HEAD(udp_dup, tc) {
atf_tc_set_md_var(tc, "descr", "duplicated socket sendto/recv");
}
ATF_TC_BODY(udp_dup, tc) {
isc_result_t result;
isc_sockaddr_t addr1, addr2;
struct in_addr in;
isc_socket_t *s1 = NULL, *s2 = NULL, *s3 = NULL;
isc_task_t *task = NULL;
char sendbuf[BUFSIZ], recvbuf[BUFSIZ];
completion_t completion;
isc_region_t r;
UNUSED(tc);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
/*
* Create two sockets: 127.0.0.1/5444 and 127.0.0.1/5445, talking to
* each other.
*/
in.s_addr = inet_addr("127.0.0.1");
isc_sockaddr_fromin(&addr1, &in, 5444);
isc_sockaddr_fromin(&addr2, &in, 5445);
result = isc_socket_create(socketmgr, PF_INET, isc_sockettype_udp, &s1);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_bind(s1, &addr1, ISC_SOCKET_REUSEADDRESS);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_create(socketmgr, PF_INET, isc_sockettype_udp, &s2);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_dup(s2, &s3);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_bind(s2, &addr2, ISC_SOCKET_REUSEADDRESS);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_socket_bind(s3, &addr2, ISC_SOCKET_REUSEADDRESS);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_task_create(taskmgr, 0, &task);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
strcpy(sendbuf, "Hello");
r.base = (void *) sendbuf;
r.length = strlen(sendbuf) + 1;
completion_init(&completion);
result = isc_socket_sendto(s1, &r, task, event_done, &completion,
&addr2, NULL);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
waitfor(&completion);
ATF_CHECK(completion.done);
ATF_CHECK_EQ(completion.result, ISC_R_SUCCESS);
strcpy(sendbuf, "World");
r.base = (void *) sendbuf;
r.length = strlen(sendbuf) + 1;
completion_init(&completion);
result = isc_socket_sendto(s1, &r, task, event_done, &completion,
&addr2, NULL);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
waitfor(&completion);
ATF_CHECK(completion.done);
ATF_CHECK_EQ(completion.result, ISC_R_SUCCESS);
r.base = (void *) recvbuf;
r.length = BUFSIZ;
completion_init(&completion);
result = isc_socket_recv(s2, &r, 1, task, event_done, &completion);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
waitfor(&completion);
ATF_CHECK(completion.done);
ATF_CHECK_EQ(completion.result, ISC_R_SUCCESS);
ATF_CHECK_STREQ(recvbuf, "Hello");
r.base = (void *) recvbuf;
r.length = BUFSIZ;
completion_init(&completion);
result = isc_socket_recv(s3, &r, 1, task, event_done, &completion);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
waitfor(&completion);
ATF_CHECK(completion.done);
ATF_CHECK_EQ(completion.result, ISC_R_SUCCESS);
ATF_CHECK_STREQ(recvbuf, "World");
isc_task_detach(&task);
isc_socket_detach(&s1);
isc_socket_detach(&s2);
isc_socket_detach(&s3);
isc_test_end();
}
/*
* Main
*/
ATF_TP_ADD_TCS(tp) {
ATF_TP_ADD_TC(tp, udp_sendto);
ATF_TP_ADD_TC(tp, udp_dup);
return (atf_no_error());
}

8
lib/isc/tests/taskpool_test.c
View File

@ -14,7 +14,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: taskpool_test.c,v 1.2 2011/07/06 05:05:52 each Exp $ */
/* $Id: taskpool_test.c,v 1.3 2011/07/28 04:04:37 each Exp $ */
/*! \file */
@ -44,7 +44,7 @@ ATF_TC_BODY(create_pool, tc) {
UNUSED(tc);
result = isc_test_begin(NULL);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_taskpool_create(taskmgr, mctx, 8, 2, &pool);
@ -68,7 +68,7 @@ ATF_TC_BODY(expand_pool, tc) {
UNUSED(tc);
result = isc_test_begin(NULL);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_taskpool_create(taskmgr, mctx, 10, 2, &pool1);
@ -121,7 +121,7 @@ ATF_TC_BODY(get_tasks, tc) {
UNUSED(tc);
result = isc_test_begin(NULL);
result = isc_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_taskpool_create(taskmgr, mctx, 2, 2, &pool);

187
lib/isc/unix/socket.c
View File

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: socket.c,v 1.340 2011/07/21 23:47:53 tbox Exp $ */
/* $Id: socket.c,v 1.341 2011/07/28 04:04:37 each Exp $ */
/*! \file */
@ -334,7 +334,8 @@ struct isc__socket {
listener : 1, /* listener socket */
connected : 1,
connecting : 1, /* connect pending */
bound : 1; /* bound to local addr */
bound : 1, /* bound to local addr */
dupped : 1;
#ifdef ISC_NET_RECVOVERFLOW
unsigned char overflow; /* used for MSG_TRUNC fake */
@ -428,6 +429,10 @@ static isc__socketmgr_t *socketmgr = NULL;
# define MAXSCATTERGATHER_RECV (ISC_SOCKET_MAXSCATTERGATHER)
#endif
static isc_result_t socket_create(isc_socketmgr_t *manager0, int pf,
isc_sockettype_t type,
isc_socket_t **socketp,
isc_socket_t *dup_socket);
static void send_recvdone_event(isc__socket_t *, isc_socketevent_t **);
static void send_senddone_event(isc__socket_t *, isc_socketevent_t **);
static void free_socket(isc__socket_t **);
@ -2045,6 +2050,7 @@ allocate_socket(isc__socketmgr_t *manager, isc_sockettype_t type,
sock->manager = manager;
sock->type = type;
sock->fd = -1;
sock->dupped = 0;
sock->statsindex = NULL;
ISC_LINK_INIT(sock, link);
@ -2221,7 +2227,8 @@ clear_bsdcompat(void) {
#endif
static isc_result_t
opensocket(isc__socketmgr_t *manager, isc__socket_t *sock) {
opensocket(isc__socketmgr_t *manager, isc__socket_t *sock,
isc__socket_t *dup_socket) {
char strbuf[ISC_STRERRORSIZE];
const char *err = "socket";
int tries = 0;
@ -2234,22 +2241,28 @@ opensocket(isc__socketmgr_t *manager, isc__socket_t *sock) {
#endif
again:
switch (sock->type) {
case isc_sockettype_udp:
sock->fd = socket(sock->pf, SOCK_DGRAM, IPPROTO_UDP);
break;
case isc_sockettype_tcp:
sock->fd = socket(sock->pf, SOCK_STREAM, IPPROTO_TCP);
break;
case isc_sockettype_unix:
sock->fd = socket(sock->pf, SOCK_STREAM, 0);
break;
case isc_sockettype_fdwatch:
/*
* We should not be called for isc_sockettype_fdwatch sockets.
*/
INSIST(0);
break;
if (dup_socket == NULL) {
switch (sock->type) {
case isc_sockettype_udp:
sock->fd = socket(sock->pf, SOCK_DGRAM, IPPROTO_UDP);
break;
case isc_sockettype_tcp:
sock->fd = socket(sock->pf, SOCK_STREAM, IPPROTO_TCP);
break;
case isc_sockettype_unix:
sock->fd = socket(sock->pf, SOCK_STREAM, 0);
break;
case isc_sockettype_fdwatch:
/*
* We should not be called for isc_sockettype_fdwatch
* sockets.
*/
INSIST(0);
break;
}
} else {
sock->fd = dup(dup_socket->fd);
sock->dupped = 1;
}
if (sock->fd == -1 && errno == EINTR && tries++ < 42)
goto again;
@ -2326,6 +2339,9 @@ opensocket(isc__socketmgr_t *manager, isc__socket_t *sock) {
}
}
if (dup_socket != NULL)
goto setup_done;
if (make_nonblock(sock->fd) != ISC_R_SUCCESS) {
(void)close(sock->fd);
return (ISC_R_UNEXPECTED);
@ -2509,20 +2525,21 @@ opensocket(isc__socketmgr_t *manager, isc__socket_t *sock) {
}
#endif /* defined(USE_CMSG) || defined(SO_RCVBUF) */
setup_done:
inc_stats(manager->stats, sock->statsindex[STATID_OPEN]);
return (ISC_R_SUCCESS);
}
/*%
* Create a new 'type' socket managed by 'manager'. Events
* will be posted to 'task' and when dispatched 'action' will be
* called with 'arg' as the arg value. The new socket is returned
* in 'socketp'.
/*
* Create a 'type' socket or duplicate an existing socket, managed
* by 'manager'. Events will be posted to 'task' and when dispatched
* 'action' will be called with 'arg' as the arg value. The new
* socket is returned in 'socketp'.
*/
ISC_SOCKETFUNC_SCOPE isc_result_t
isc__socket_create(isc_socketmgr_t *manager0, int pf, isc_sockettype_t type,
isc_socket_t **socketp)
static isc_result_t
socket_create(isc_socketmgr_t *manager0, int pf, isc_sockettype_t type,
isc_socket_t **socketp, isc_socket_t *dup_socket)
{
isc__socket_t *sock = NULL;
isc__socketmgr_t *manager = (isc__socketmgr_t *)manager0;
@ -2554,7 +2571,8 @@ isc__socket_create(isc_socketmgr_t *manager0, int pf, isc_sockettype_t type,
}
sock->pf = pf;
result = opensocket(manager, sock);
result = opensocket(manager, sock, (isc__socket_t *)dup_socket);
if (result != ISC_R_SUCCESS) {
inc_stats(manager->stats, sock->statsindex[STATID_OPENFAIL]);
free_socket(&sock);
@ -2589,11 +2607,40 @@ isc__socket_create(isc_socketmgr_t *manager0, int pf, isc_sockettype_t type,
UNLOCK(&manager->lock);
socket_log(sock, NULL, CREATION, isc_msgcat, ISC_MSGSET_SOCKET,
ISC_MSG_CREATED, "created");
ISC_MSG_CREATED, dup_socket == NULL ? "dupped" : "created");
return (ISC_R_SUCCESS);
}
/*%
* Create a new 'type' socket managed by 'manager'. Events
* will be posted to 'task' and when dispatched 'action' will be
* called with 'arg' as the arg value. The new socket is returned
* in 'socketp'.
*/
ISC_SOCKETFUNC_SCOPE isc_result_t
isc__socket_create(isc_socketmgr_t *manager0, int pf, isc_sockettype_t type,
isc_socket_t **socketp)
{
return (socket_create(manager0, pf, type, socketp, NULL));
}
/*%
* Duplicate an existing socket. The new socket is returned
* in 'socketp'.
*/
ISC_SOCKETFUNC_SCOPE isc_result_t
isc__socket_dup(isc_socket_t *sock0, isc_socket_t **socketp) {
isc__socket_t *sock = (isc__socket_t *)sock0;
REQUIRE(VALID_SOCKET(sock));
REQUIRE(socketp != NULL && *socketp == NULL);
return (socket_create((isc_socketmgr_t *) sock->manager,
sock->pf, sock->type, socketp,
sock0));
}
#ifdef BIND9
ISC_SOCKETFUNC_SCOPE isc_result_t
isc__socket_open(isc_socket_t *sock0) {
@ -2612,7 +2659,7 @@ isc__socket_open(isc_socket_t *sock0) {
*/
REQUIRE(sock->fd == -1);
result = opensocket(sock->manager, sock);
result = opensocket(sock->manager, sock, NULL);
if (result != ISC_R_SUCCESS)
sock->fd = -1;
@ -2792,6 +2839,7 @@ isc__socket_close(isc_socket_t *sock0) {
int fd;
isc__socketmgr_t *manager;
fflush(stdout);
REQUIRE(VALID_SOCKET(sock));
LOCK(&sock->lock);
@ -2812,6 +2860,7 @@ isc__socket_close(isc_socket_t *sock0) {
manager = sock->manager;
fd = sock->fd;
sock->fd = -1;
sock->dupped = 0;
memset(sock->name, 0, sizeof(sock->name));
sock->tag = NULL;
sock->listener = 0;
@ -4977,48 +5026,49 @@ isc__socket_bind(isc_socket_t *sock0, isc_sockaddr_t *sockaddr,
UNLOCK(&sock->lock);
return (ISC_R_FAMILYMISMATCH);
}
/*
* Only set SO_REUSEADDR when we want a specific port.
*/
if (!sock->dupped) {
/*
* Only set SO_REUSEADDR when we want a specific port.
*/
#ifdef AF_UNIX
if (sock->pf == AF_UNIX)
goto bind_socket;
if (sock->pf == AF_UNIX)
goto bind_socket;
#endif
if ((options & ISC_SOCKET_REUSEADDRESS) != 0 &&
isc_sockaddr_getport(sockaddr) != (in_port_t)0 &&
setsockopt(sock->fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
sizeof(on)) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"setsockopt(%d) %s", sock->fd,
isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL,
ISC_MSG_FAILED, "failed"));
/* Press on... */
}
if ((options & ISC_SOCKET_REUSEADDRESS) != 0 &&
isc_sockaddr_getport(sockaddr) != (in_port_t)0 &&
setsockopt(sock->fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
sizeof(on)) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"setsockopt(%d) %s", sock->fd,
isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL,
ISC_MSG_FAILED, "failed"));
/* Press on... */
}
#ifdef AF_UNIX
bind_socket:
bind_socket:
#endif
if (bind(sock->fd, &sockaddr->type.sa, sockaddr->length) < 0) {
inc_stats(sock->manager->stats,
sock->statsindex[STATID_BINDFAIL]);
if (bind(sock->fd, &sockaddr->type.sa, sockaddr->length) < 0) {
inc_stats(sock->manager->stats,
sock->statsindex[STATID_BINDFAIL]);
UNLOCK(&sock->lock);
switch (errno) {
case EACCES:
return (ISC_R_NOPERM);
case EADDRNOTAVAIL:
return (ISC_R_ADDRNOTAVAIL);
case EADDRINUSE:
return (ISC_R_ADDRINUSE);
case EINVAL:
return (ISC_R_BOUND);
default:
isc__strerror(errno, strbuf, sizeof(strbuf));
UNEXPECTED_ERROR(__FILE__, __LINE__, "bind: %s",
strbuf);
return (ISC_R_UNEXPECTED);
UNLOCK(&sock->lock);
switch (errno) {
case EACCES:
return (ISC_R_NOPERM);
case EADDRNOTAVAIL:
return (ISC_R_ADDRNOTAVAIL);
case EADDRINUSE:
return (ISC_R_ADDRINUSE);
case EINVAL:
return (ISC_R_BOUND);
default:
isc__strerror(errno, strbuf, sizeof(strbuf));
UNEXPECTED_ERROR(__FILE__, __LINE__, "bind: %s",
strbuf);
return (ISC_R_UNEXPECTED);
}
}
}
socket_log(sock, sockaddr, TRACE,
isc_msgcat, ISC_MSGSET_SOCKET, ISC_MSG_BOUND, "bound");
sock->bound = 1;
@ -5826,6 +5876,13 @@ isc__socket_register() {
}
#endif
int
isc_socket_getfd(isc_socket_t *socket0) {
isc__socket_t *socket = (isc__socket_t *)socket0;
return ((short) socket->fd);
}
#if defined(HAVE_LIBXML2) && defined(BIND9)
static const char *

1
lib/isc/win32/libisc.def
View File

@ -88,6 +88,7 @@ isc__socket_close
isc__socket_connect
isc__socket_create
isc__socket_detach
isc__socket_dup
isc__socket_filter
isc__socket_getname
isc__socket_getpeername

84
lib/isc/win32/socket.c
View File

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: socket.c,v 1.87 2010/12/09 06:08:05 marka Exp $ */
/* $Id: socket.c,v 1.88 2011/07/28 04:04:37 each Exp $ */
/* This code uses functions which are only available on Server 2003 and
* higher, and Windows XP and higher.
@ -265,7 +265,8 @@ struct isc_socket {
unsigned int listener : 1, /* listener socket */
connected : 1,
pending_connect : 1, /* connect pending */
bound : 1; /* bound to local addr */
bound : 1, /* bound to local addr */
dupped : 1; /* created by isc_socket_dup() */
unsigned int pending_iocp; /* Should equal the counters below. Debug. */
unsigned int pending_recv; /* Number of outstanding recv() calls. */
unsigned int pending_send; /* Number of outstanding send() calls. */
@ -351,6 +352,10 @@ enum {
#define MAXSCATTERGATHER_SEND (ISC_SOCKET_MAXSCATTERGATHER)
#define MAXSCATTERGATHER_RECV (ISC_SOCKET_MAXSCATTERGATHER)
static isc_result_t socket_create(isc_socketmgr_t *manager0, int pf,
isc_sockettype_t type,
isc_socket_t **socketp,
isc_socket_t *dup_socket);
static isc_threadresult_t WINAPI SocketIoThread(LPVOID ThreadContext);
static void maybe_free_socket(isc_socket_t **, int);
static void free_socket(isc_socket_t **, int);
@ -1461,6 +1466,7 @@ allocate_socket(isc_socketmgr_t *manager, isc_sockettype_t type,
sock->connected = 0;
sock->pending_connect = 0;
sock->bound = 0;
sock->dupped = 0;
memset(sock->name, 0, sizeof(sock->name)); // zero the name field
_set_state(sock, SOCK_INITIALIZED);
@ -1623,9 +1629,10 @@ free_socket(isc_socket_t **sockp, int lineno) {
* called with 'arg' as the arg value. The new socket is returned
* in 'socketp'.
*/
isc_result_t
isc__socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type,
isc_socket_t **socketp) {
static isc_result_t
socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type,
isc_socket_t **socketp, isc_socket_t *dup_socket)
{
isc_socket_t *sock = NULL;
isc_result_t result;
#if defined(USE_CMSG)
@ -1647,27 +1654,35 @@ isc__socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type,
return (result);
sock->pf = pf;
switch (type) {
case isc_sockettype_udp:
sock->fd = socket(pf, SOCK_DGRAM, IPPROTO_UDP);
if (sock->fd != INVALID_SOCKET) {
result = connection_reset_fix(sock->fd);
if (result != ISC_R_SUCCESS) {
socket_log(__LINE__, sock, NULL, EVENT, NULL, 0, 0,
"closed %d %d %d con_reset_fix_failed",
sock->pending_recv, sock->pending_send,
sock->references);
closesocket(sock->fd);
_set_state(sock, SOCK_CLOSED);
sock->fd = INVALID_SOCKET;
free_socket(&sock, __LINE__);
return (result);
if (dup_socket == NULL) {
switch (type) {
case isc_sockettype_udp:
sock->fd = socket(pf, SOCK_DGRAM, IPPROTO_UDP);
if (sock->fd != INVALID_SOCKET) {
result = connection_reset_fix(sock->fd);
if (result != ISC_R_SUCCESS) {
socket_log(__LINE__, sock,
NULL, EVENT, NULL, 0, 0,
"closed %d %d %d "
"con_reset_fix_failed",
sock->pending_recv,
sock->pending_send,
sock->references);
closesocket(sock->fd);
_set_state(sock, SOCK_CLOSED);
sock->fd = INVALID_SOCKET;
free_socket(&sock, __LINE__);
return (result);
}
}
break;
case isc_sockettype_tcp:
sock->fd = socket(pf, SOCK_STREAM, IPPROTO_TCP);
break;
}
break;
case isc_sockettype_tcp:
sock->fd = socket(pf, SOCK_STREAM, IPPROTO_TCP);
break;
} else {
sock->fd = dup(dup_socket->fd);
sock->dupped = 1;
}
if (sock->fd == INVALID_SOCKET) {
@ -1786,12 +1801,29 @@ isc__socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type,
InterlockedIncrement(&manager->totalSockets);
UNLOCK(&manager->lock);
socket_log(__LINE__, sock, NULL, CREATION, isc_msgcat, ISC_MSGSET_SOCKET,
ISC_MSG_CREATED, "created %u type %u", sock->fd, type);
socket_log(__LINE__, sock, NULL, CREATION, isc_msgcat,
ISC_MSGSET_SOCKET, ISC_MSG_CREATED,
"created %u type %u", sock->fd, type);
return (ISC_R_SUCCESS);
}
isc_result_t
isc__socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type,
isc_socket_t **socketp)
{
return (socket_create(manager, pf, type, socketp, NULL));
}
isc_result_t
isc__socket_dup(isc_socket_t *sock, isc_socket_t **socketp) {
REQUIRE(VALID_SOCKET(sock));
REQUIRE(socketp != NULL && *socketp == NULL);
return (socket_create(sock->manager, sock->pf, sock->type,
socketp, sock));
}
isc_result_t
isc_socket_open(isc_socket_t *sock) {
REQUIRE(VALID_SOCKET(sock));