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| author | Roy Marples <roy@marples.name> | 2012-03-05 11:13:06 +0000 |
|---|---|---|
| committer | Roy Marples <roy@marples.name> | 2012-03-05 11:13:06 +0000 |
| commit | eb0faa896202e162e8dd25a02a29f75357855027 (patch) | |
| tree | 19d5fe304b818f0c80d2a73f7629cd324b290cd1 | |
| parent | c37989c4aa92fa076d8a7602811de5e8c60b9679 (diff) | |
| download | dhcpcd-eb0faa896202e162e8dd25a02a29f75357855027.tar.xz | |
Use sysfs if we don't have ifconfig(8) on Linux.
Thanks to Dave Reisner.
| -rw-r--r-- | dhcpcd-hooks/10-mtu | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/dhcpcd-hooks/10-mtu b/dhcpcd-hooks/10-mtu index 639697c9..f04274e7 100644 --- a/dhcpcd-hooks/10-mtu +++ b/dhcpcd-hooks/10-mtu @@ -2,12 +2,23 @@ mtu_dir="$state_dir/mtu" +set_mtu() +{ + local mtu=$1 + + if [ -w /sys/class/net/$interface/mtu ]; then + echo "$mtu" >/sys/class/net/$interface/mtu + else + ifconfig "$interface" mtu "$mtu" + fi +} + if [ "$reason" = PREINIT -a -e "$mtu_dir/$interface" ]; then rm "$mtu_dir/$interface" elif [ -n "$new_interface_mtu" ] && $if_up; then # The smalled MTU dhcpcd can work with is 576 if [ "$new_interface_mtu" -ge 576 ]; then - if ifconfig "$interface" mtu "$new_interface_mtu"; then + if set_mtu "$new_interface_mtu"; then syslog info "$interface: MTU set to $new_interface_mtu" # Save the MTU so we can restore it later if [ ! -e "$mtu_dir/$interface" ]; then @@ -21,7 +32,7 @@ elif [ -e "$mtu_dir/$interface" ]; then # No MTU in this state, so restore the prior MTU mtu=$(cat "$mtu_dir/$interface") syslog info "$interface: MTU restored to $mtu" - ifconfig "$interface" mtu "$mtu" + set_mtu "$mtu" rm "$mtu_dir/$interface" fi fi |