Hi,
I have been trying to use pppd 2.4.4 with multilink:
debian:~# pppd plugin pppoatm.so 0.8.35 multilink nodetach
Plugin pppoatm.so loaded.
using channel 8
Starting negotiation on 0.8.35
ioctl(SIOCSIFMTU): No such device
I have looked in the plugin code and discovered in send_config_pppoa,
ioctl() fails because the interface name (ifname) isn't set. Without
the multilink option, ifname is "ppp0".
If I enclose the code in an if(!multilink), it appears to work. It
looks like the MTU gets set later in mp_join_bundle() anyway, but I'm
not too familiar with the code.
Any comments would be greatly appreciated.
Regards,
Nathan
--- ppp-2.4.4.orig/pppd/plugins/pppoatm/pppoatm.c 2006-05-21 22:44:41
+++ ppp-2.4.4.new/pppd/plugins/pppoatm/pppoatm.c 2008-10-24 12:02:42
@@ -173,18 +173,20 @@ static void send_config_pppoa(int mtu,
int pcomp,
int accomp)
{
- int sock;
- struct ifreq ifr;
- if (mtu > pppoatm_max_mtu)
- error("Couldn't increase MTU to %d", mtu);
- sock = socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0)
- fatal("Couldn't create IP socket: %m");
- strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
- ifr.ifr_mtu = mtu;
- if (ioctl(sock, SIOCSIFMTU, (caddr_t) &ifr) < 0)
- fatal("ioctl(SIOCSIFMTU): %m");
- (void) close (sock);
+ if(!multilink){
+ int sock;
+ struct ifreq ifr;
+ if (mtu > pppoatm_max_mtu)
+ error("Couldn't increase MTU to %d", mtu);
+ sock = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sock < 0)
+ fatal("Couldn't create IP socket: %m");
+ strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ ifr.ifr_mtu = mtu;
+ if (ioctl(sock, SIOCSIFMTU, (caddr_t) &ifr) < 0)
+ fatal("ioctl(SIOCSIFMTU): %m");
+ (void) close (sock);
+ }
}
static void recv_config_pppoa(int mru,
------------------------------------------------------------------
Nathan Williams
nathan@xxxxxxxxxxxxxxx
http://www.traverse.com.au
Tel: +613 9486 7775
Fax: +613 9482 7754
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