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- Sockets are set to lowdelay priority initially to improve conneciton setup

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- Set non-pty connections to bulk for client and server
This commit is contained in:
Matt Johnston
2013-12-03 00:04:48 +08:00
parent ddc10b2d0c
commit 998d6cdfc4
6 changed files with 40 additions and 19 deletions
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37
dbutil.c
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@@ -185,30 +185,37 @@ void set_sock_nodelay(int sock) {
setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&val, sizeof(val));
}
void set_sock_priority(int sock) {
void set_sock_priority(int sock, enum dropbear_prio prio) {
int val, rc;
int iptos_val = 0, so_prio_val = 0, rc;
/* set the TOS bit for either ipv4 or ipv6 */
#ifdef IPTOS_LOWDELAY
val = IPTOS_LOWDELAY;
if (prio == DROPBEAR_PRIO_LOWDELAY) {
iptos_val = IPTOS_LOWDELAY;
} else if (prio == DROPBEAR_PRIO_BULK) {
iptos_val = IPTOS_THROUGHPUT;
}
#if defined(IPPROTO_IPV6) && defined(IPV6_TCLASS)
rc = setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS, (void*)&val, sizeof(val));
if (rc < 0)
dropbear_log(LOG_WARNING, "Couldn't set IPV6_TCLASS (%s)",
strerror(errno));
rc = setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS, (void*)&iptos_val, sizeof(iptos_val));
if (rc < 0) {
TRACE(("Couldn't set IPV6_TCLASS (%s)", strerror(errno)));
}
#endif
rc = setsockopt(sock, IPPROTO_IP, IP_TOS, (void*)&val, sizeof(val));
if (rc < 0)
dropbear_log(LOG_WARNING, "Couldn't set IP_TOS (%s)",
strerror(errno));
rc = setsockopt(sock, IPPROTO_IP, IP_TOS, (void*)&iptos_val, sizeof(iptos_val));
if (rc < 0) {
TRACE(("Couldn't set IP_TOS (%s)", strerror(errno)));
}
#endif
#ifdef SO_PRIORITY
/* linux specific, sets QoS class.
* 6 looks to be optimal for interactive traffic (see tc-prio(8) ). */
val = TC_PRIO_INTERACTIVE;
rc = setsockopt(sock, SOL_SOCKET, SO_PRIORITY, (void*) &val, sizeof(val));
if (prio == DROPBEAR_PRIO_LOWDELAY) {
so_prio_val = TC_PRIO_INTERACTIVE;
} else if (prio == DROPBEAR_PRIO_BULK) {
so_prio_val = TC_PRIO_BULK;
}
/* linux specific, sets QoS class. see tc-prio(8) */
rc = setsockopt(sock, SOL_SOCKET, SO_PRIORITY, (void*) &so_prio_val, sizeof(so_prio_val));
if (rc < 0)
dropbear_log(LOG_WARNING, "Couldn't set SO_PRIORITY (%s)",
strerror(errno));