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[master] add DSCP support

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3535.	[func]		Add support for setting Differentiated Services Code
			Point (DSCP) values in named.  Most configuration
			options which take a "port" option (e.g.,
			listen-on, forwarders, also-notify, masters,
			notify-source, etc) can now also take a "dscp"
			option specifying a code point for use with
			outgoing traffic, if supported by the underlying
			OS. [RT #27596]
This commit is contained in:
Evan Hunt
2013-03-22 12:27:54 -07:00
parent bbb3705e4c
commit 67adc03ef8
91 changed files with 3245 additions and 404 deletions
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56
lib/isc/win32/socket.c
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@@ -1061,13 +1061,13 @@ destroy_socketevent(isc_event_t *event) {
}
static isc_socketevent_t *
allocate_socketevent(isc_socket_t *sock, isc_eventtype_t eventtype,
isc_taskaction_t action, const void *arg)
allocate_socketevent(isc_mem_t *mctx, isc_socket_t *sock,
isc_eventtype_t eventtype, isc_taskaction_t action,
const void *arg)
{
isc_socketevent_t *ev;
ev = (isc_socketevent_t *)isc_event_allocate(sock->manager->mctx,
sock, eventtype,
ev = (isc_socketevent_t *)isc_event_allocate(mctx, sock, eventtype,
action, arg,
sizeof(*ev));
if (ev == NULL)
@@ -2840,7 +2840,8 @@ isc__socket_recvv(isc_socket_t *sock, isc_bufferlist_t *buflist,
INSIST(sock->bound);
dev = allocate_socketevent(sock, ISC_SOCKEVENT_RECVDONE, action, arg);
dev = allocate_socketevent(manager->mctx, sock,
ISC_SOCKEVENT_RECVDONE, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
return (ISC_R_NOMEMORY);
@@ -2901,7 +2902,8 @@ isc__socket_recv(isc_socket_t *sock, isc_region_t *region,
INSIST(sock->bound);
dev = allocate_socketevent(sock, ISC_SOCKEVENT_RECVDONE, action, arg);
dev = allocate_socketevent(manager->mctx, sock,
ISC_SOCKEVENT_RECVDONE, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
return (ISC_R_NOMEMORY);
@@ -3064,7 +3066,8 @@ isc__socket_sendto(isc_socket_t *sock, isc_region_t *region,
INSIST(sock->bound);
dev = allocate_socketevent(sock, ISC_SOCKEVENT_SENDDONE, action, arg);
dev = allocate_socketevent(manager->mctx, sock,
ISC_SOCKEVENT_SENDDONE, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
return (ISC_R_NOMEMORY);
@@ -3118,7 +3121,8 @@ isc__socket_sendtov(isc_socket_t *sock, isc_bufferlist_t *buflist,
iocount = isc_bufferlist_usedcount(buflist);
REQUIRE(iocount > 0);
dev = allocate_socketevent(sock, ISC_SOCKEVENT_SENDDONE, action, arg);
dev = allocate_socketevent(manager->mctx, sock,
ISC_SOCKEVENT_SENDDONE, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
return (ISC_R_NOMEMORY);
@@ -3803,6 +3807,34 @@ isc__socket_ipv6only(isc_socket_t *sock, isc_boolean_t yes) {
#endif
}
void
isc__socket_dscp(isc_socket_t *sock, unsigned int dscp) {
#if !defined(IP_TOS) && !defined(IPV6_TCLASS)
UNUSED(dscp);
#else
if (dscp < 0)
return;
dscp <<= 2;
dscp &= 0xff;
#endif
REQUIRE(VALID_SOCKET(sock));
#ifdef IP_TOS
if (sock->pf == AF_INET) {
(void)setsockopt(sock->fd, IPPROTO_IP, IP_TOS,
(char *)&dscp, sizeof(dscp));
}
#endif
#ifdef IPV6_TCLASS
if (sock->pf == AF_INET6) {
(void)setsockopt(sock->fd, IPPROTO_IPV6, IPV6_TCLASS,
(char *)&dscp, sizeof(dscp));
}
#endif
}
void
isc__socket_cleanunix(isc_sockaddr_t *addr, isc_boolean_t active) {
UNUSED(addr);
@@ -3864,6 +3896,14 @@ isc___socketmgr_maxudp(isc_socketmgr_t *manager, int maxudp) {
UNUSED(maxudp);
}
isc_socketevent_t *
isc__socket_socketevent(isc_mem_t *mctx, void *sender,
isc_eventtype_t eventtype, isc_taskaction_t action,
const void *arg)
{
return (allocate_socketevent(mctx, sender, eventtype, action, arg));
}
#ifdef HAVE_LIBXML2
static const char *