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Code Issues Releases Wiki Activity

Improve ToS on IPv6 connections

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This commit is contained in:
clyang 2017-08-02 18:01:39 +08:00 committed by Mike Gelfand
parent 8ab1389fc4
commit 81c9653383
3 changed files with 59 additions and 11 deletions
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64
libtransmission/net.c
View file

@ -153,22 +153,70 @@ int tr_address_compare(tr_address const* a, tr_address const* b)
* TCP sockets
**********************************************************************/
void tr_netSetTOS(tr_socket_t s, int tos)
void tr_netSetTOS(tr_socket_t s, int tos, tr_address_type type)
{
if (type == TR_AF_INET)
{
#if defined(IP_TOS) && !defined(_WIN32)
if (setsockopt(s, IPPROTO_IP, IP_TOS, (void const*)&tos, sizeof(tos)) == -1)
{
char err_buf[512];
tr_logAddNamedInfo("Net", "Can't set TOS '%d': %s", tos, tr_net_strerror(err_buf, sizeof(err_buf), sockerrno));
}
if (setsockopt(s, IPPROTO_IP, IP_TOS, (void const*)&tos, sizeof(tos)) == -1)
{
char err_buf[512];
tr_net_strerror(err_buf, sizeof(err_buf), sockerrno);
tr_logAddNamedInfo("Net", "Can't set TOS '%d': %s", tos, err_buf);
}
#else
(void)s;
(void)tos;
(void)s;
(void)tos;
#endif
}
else if (type == TR_AF_INET6)
{
#if defined(IPV6_TCLASS) && !defined(_WIN32)
int dscp = 0;
switch (tos)
{
case 0x10:
dscp = 0x20; /* lowcost (CS1) */
break;
case 0x08:
dscp = 0x28; /* throughput (AF11) */
break;
case 0x04:
dscp = 0x04; /* reliability */
break;
case 0x02:
dscp = 0x30; /* low delay (AF12) */
break;
}
if (setsockopt(s, IPPROTO_IPV6, IPV6_TCLASS, (void const*)&dscp, sizeof(dscp)) == -1)
{
char err_buf[512];
tr_net_strerror(err_buf, sizeof(err_buf), sockerrno);
tr_logAddNamedInfo("Net", "Can't set IPv6 QoS '%d': %s", dscp, err_buf);
}
#else
(void)s;
(void)tos;
#endif
}
else
{
/* program should never reach here! */
tr_logAddNamedInfo("Net", "Something goes wrong while setting TOS/Traffic-Class");
}
}
void tr_netSetCongestionControl(tr_socket_t s, char const* algorithm)

2
libtransmission/net.h
View file

@ -128,7 +128,7 @@ tr_socket_t tr_netBindTCP(tr_address const* addr, tr_port port, bool suppressMsg
tr_socket_t tr_netAccept(tr_session* session, tr_socket_t bound, tr_address* setme_addr, tr_port* setme_port);
void tr_netSetTOS(tr_socket_t s, int tos);
void tr_netSetTOS(tr_socket_t s, int tos, tr_address_type type);
void tr_netSetCongestionControl(tr_socket_t s, char const* algorithm);

4
libtransmission/peer-io.c
View file

@ -637,7 +637,7 @@ static tr_peerIo* tr_peerIoNew(tr_session* session, tr_bandwidth* parent, tr_add
if (socket.type == TR_PEER_SOCKET_TYPE_TCP)
{
tr_netSetTOS(socket.handle.tcp, session->peerSocketTOS);
tr_netSetTOS(socket.handle.tcp, session->peerSocketTOS, addr->type);
maybeSetCongestionAlgorithm(socket.handle.tcp, session->peer_congestion_algorithm);
}
@ -993,7 +993,7 @@ int tr_peerIoReconnect(tr_peerIo* io)
io->event_write = event_new(session->event_base, io->socket.handle.tcp, EV_WRITE, event_write_cb, io);
event_enable(io, pendingEvents);
tr_netSetTOS(io->socket.handle.tcp, session->peerSocketTOS);
tr_netSetTOS(io->socket.handle.tcp, session->peerSocketTOS, io->addr.type);
maybeSetCongestionAlgorithm(io->socket.handle.tcp, session->peer_congestion_algorithm);
return 0;