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Experimental IFF_ONE_QUEUE support for Linux

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Brandon L Black 2010-11-13 12:05:48 -06:00 committed by Guus Sliepen
parent 9e3ca39773
commit 3f410e2f8f
2 changed files with 10 additions and 0 deletions
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3
doc/tinc.conf.5.in
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@ -255,6 +255,9 @@ a lookup if your DNS server is not responding.
This does not affect resolving hostnames to IP addresses from the This does not affect resolving hostnames to IP addresses from the
host configuration files. host configuration files.
.It Va IffOneQueue Li = yes | no Po no Pc Bq experimental
(Linux only) Set IFF_ONE_QUEUE flag on TUN/TAP devices.
.It Va Interface Li = Ar interface .It Va Interface Li = Ar interface
Defines the name of the interface corresponding to the virtual network device. Defines the name of the interface corresponding to the virtual network device.
Depending on the operating system and the type of device this may or may not actually set the name of the interface. Depending on the operating system and the type of device this may or may not actually set the name of the interface.

7
src/linux/device.c
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@ -52,6 +52,7 @@ static uint64_t device_total_out = 0;
bool setup_device(void) { bool setup_device(void) {
struct ifreq ifr; struct ifreq ifr;
bool t1q = false;
if(!get_config_string(lookup_config(config_tree, "Device"), &device)) if(!get_config_string(lookup_config(config_tree, "Device"), &device))
device = xstrdup(DEFAULT_DEVICE); device = xstrdup(DEFAULT_DEVICE);
@ -84,6 +85,12 @@ bool setup_device(void) {
device_info = "Linux tun/tap device (tap mode)"; device_info = "Linux tun/tap device (tap mode)";
} }
#ifdef IFF_ONE_QUEUE
/* Set IFF_ONE_QUEUE flag... */
if(get_config_bool(lookup_config(config_tree, "IffOneQueue"), &t1q) && t1q)
ifr.ifr_flags |= IFF_ONE_QUEUE;
#endif
if(iface) if(iface)
strncpy(ifr.ifr_name, iface, IFNAMSIZ); strncpy(ifr.ifr_name, iface, IFNAMSIZ);