We need always three of the firewall mask value for
* default routing table
* blackhole
* unreachable
the other will be used for the interfaces.
* If we have set the mmx_mask to max 0xFF00 (8 bit set) we could use max 252
interfaces.
* If we have set the mmx_mask to min 0x0E00 (3 bit set) we could use max 4
interfaces.
Only the ones are counting from the firewall mask value.
Minimal three firewall mask bit vaules must be set.
Maximal eight firewall mask bit vaules could be set.
Table overview mmx_mask value bits vs. max interfaces
mmx_mask value bits set 1 -> not usefull
mmx_mask value bits set 2 -> not usefull
mmx_mask value bits set 3 -> 4 Interfaces (mask example 0x0E)
mmx_mask value bits set 4 -> 12 Interfaces
mmx_mask value bits set 5 -> 28 Interfaces
mmx_mask value bits set 6 -> 60 Interfaces
mmx_mask value bits set 7 -> 124 Interfaces
mmx_mask value bits set 8 -> 252 Interfaces (mask example 0xFF)
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Move all shell commands which are executed during /lib/mwan3/mwan3.sh
sourceing into a seperate init function which must be called at first.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
In some situation it is not enough to send a SIGTERM to mwan3track to
ask service to stop accurate. If this does not work send him a SIGKILL
to prevent mwan3track running more then once per interface.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
This commit fixed what 6d99b602 was supposed to fix without affecting
interface-bound traffic.
Before 6d99b602 interface-bound traffic was working normally as long
as at least one interface was online. However when the last interface
went offline, it was impossible to ping and such state was
unrecoverable.
Commit 6d99b602 fixed unrecoverable offline state problem (it was
possible to ping -I iface) but messed inteface-bound traffic. Traffic
with interface source address was not working if the interface was in
"offline" state, even if another interface was online.
The problem was caused by an inconsistent "offline" interface state:
iptables-related rules were kept while routing table and policy were
deleted.
The idea behind this commit is to:
1. Keep all the rules for each interface (iptables, routing table,
policy) regardless of its state. This ensures consistency,
2. Make interface state hotplug events affect only iptables'
mwan3_policy_* rules. Interface-related iptables, routing table
and policy is removed only when mwan3 is manually stopped.
To make such changes possible, it's necessary to change the way
mwan3_policy_* rule generator keeps track of interface state hotplug
events.
Until now, it checked for the existence of custom interface-related
routing table (table id 1, 2, 3, ...). Clearly we can no longer rely
on that so each interface state is stored explicitly in file.
Signed-off-by: Marcin Jurkowski <marcin1j@gmail.com>
Even though error was fixed the interface checks still fails, if last_resort
was set to blackhole or unreachable.
To fix this issue do not remove failure interface from iptables change on
down event.
Reported-by: Colby Whitney <colby.whitney@luxul.com>
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
If two interface have the same prefix "wan" for example "wan" and "wan1"
pgrep returns the PID for wan1 also "pgrep -f mwan3track wan".
Before this fix "wan1" was also killed! This is not what we want.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
If mwan3track will not stop immediately after sending the kill signal,
the clean_up handler will delete the pid file later while the new mwan3track is
already running.
This could result in a situation that mwan3track is running
more then once because the old mwan3track service could not be killed,
because the pid file is missing.
Using pgrep to kill all mwan3track for the tracked interface and not using
pid file should fix this issue.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Fix issue with sticky sessions not working correctly
Fix issue where user created ipsets were not applied
Signed-off-by: Jeroen Louwes <jeroen.louwes@gmail.com>
Fixed issue in mwan3 status output with mwan3 interfaces not yet configuerd in network config
Removed nexthop argument as it is no longer used
Signed-off-by: Jeroen Louwes <jeroen.louwes@gmail.com>
Fixed issue where an manual ifup-ed interface would immediatly go down again
Remove from init as mwan3 is not a service
Signed-off-by: Jeroen Louwes <jeroen.louwes@gmail.com>
Fixed issue where mwan3 would not immediately set interface down on link-loss event
Added feature to define last-resort action on policies with no members
Signed-off-by: Jeroen Louwes <jeroen.louwes@gmail.com>
Florian Eckert
Marcin Jurkowski
Florian Eckert
Jeroen Louwes