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Specify the device name on the default route deletion

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Some users have reported that pppd will delete a default route
through another device, for example if they bring up a ppp connection
with default route, then bring up an ethernet interface and set a
default route through that, then take down the ppp connection.

This fixes it, for Linux at least, by specifying the device name on
the default route deletion ioctl, which means that the kernel will
only delete default routes through that device.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras
2009-11-15 17:08:20 +11:00
parent 29bdd4bcc2
commit 9856f47063
1 changed files with 2 additions and 0 deletions
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2
pppd/sys-linux.c
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@@ -1658,6 +1658,8 @@ int cifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway)
SET_SA_FAMILY (rt.rt_dst, AF_INET);
SET_SA_FAMILY (rt.rt_gateway, AF_INET);
rt.rt_dev = ifname;
if (kernel_version > KVERSION(2,1,0)) {
SET_SA_FAMILY (rt.rt_genmask, AF_INET);
SIN_ADDR(rt.rt_genmask) = 0L;