Commit Graph

11 Commits

Author SHA1 Message Date
Roger Pueyo Centelles
c6d3a62919 gre: add different per-protocol prefixes to GRE-TAP IPv4/6 tunnel interfaces.
This commit modifies the /lib/netifd/proto/gre.sh script so that, when
GRE-TAP tunnels are created, either IPv4 or IPv6, the prefix before the chosen
interface name contains the "tap" substring, to differentiate them from non-TAP
GRE tunnels.

Right now, both GRE and GRE-TAP tunnel (either IPv4 or IPv6) interfaces defined
in /etc/config/network are named equally ("gre-"+$ifname or "grev6"+$ifname)
upon creation. For instance, the following tunnels:

        config interface 'tuna'
                option peeraddr '172.30.22.1'
                option proto 'gre'

        config interface 'tunb'
                option peeraddr '192.168.233.4'
                option proto 'gretap'

        config interface 'tunc'
                option peer6addr 'fdc5:7c9e:e93d:45af::1'
                option proto 'grev6'

        config interface 'tund'
                option peer6addr 'fdc0:6071:1348:31ff::2'
                option proto 'grev6tap'

are named, respectively, "gre-tuna", "gre-tunb", "grev6-tunc" and "grev6-tund".

The current change makes that each GRE tunnel interface of the four different
types available (gre, gretap, grev6 and grev6tap) gets a different prefix.
Therefore, the abovementioned tunnels will be named, respectively:
"gre4-tuna", "gre4t-tunb", "gre6-tunc" and "gre6t-tund".

This is coherent with other types of virtual interfaces (i.e. PPP, PPPoE, PPPoA)
where the whole protocol name is used. For instance, a PPPoA interface named
"p1" and a PPPoE interface named "p2" will respectively appear as "pppoa-p1"
and "pppoe-p2", not as "ppp-p1" and "ppp-p2").

Since Linux interfaces names are limited to 15 characters, these prefixes leave,
for the worst case (TAP tunnels), 9 characters for the actual name.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
2017-01-03 14:36:37 +01:00
Hans Dedecker
4c9d2c04ba gre: Remove ttl default value assignment (FS#312)
Don't assign a default ttl of 64 for gre tunnels as
netifd takes care of the default ttl assignment

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-12-25 21:00:44 +01:00
Alexandru Ardelean
5ab258e57a gre: add empty install rules for grev4 & grev6
Build seems to fail with:

```
Collected errors:
 * satisfy_dependencies_for: Cannot satisfy the following dependencies for X:
 * grev4 *
 * opkg_install_cmd: Cannot install package X
```

After adding an empty install rule, the failure goes away.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
2016-12-22 16:33:27 +01:00
Hans Dedecker
a79f3d11b3 gre: Support fqdn as remote tunnel endpoint
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2016-10-04 11:50:51 +02:00
Felix Fietkau
b3c9321b9e gre: Support multicast configurable gre interfaces
UCI paramater multicast is added which allows to toggle multicast support on gre interfaces.
By default multicast support is enabled as gre tunnels are often used in combination with
routing protocols using multicast.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Signed-off-by: Nick Podolak <nicholas.podolak@dtechlabs.com>

SVN-Revision: 48596
2016-02-01 12:02:11 +00:00
Felix Fietkau
c5dfbea1e8 package/network/config/gre: ipv6 gre kmod package name was wrong
Source package gre was depending on kmod-ip6-gre, however the actual
kernel module package that is created is kmod-gre6.  Therefore
update (source) package gre for ipv6 gre support.

Signed-off-by: Daniel Dickinson <openwrt@daniel.thecshore.com>

SVN-Revision: 48100
2016-01-03 20:57:06 +00:00
Steven Barth
836d462b10 package: Remove dependencies to kmod-ipv6
Since r46834, IPv6 support is builtin if selected. Therefor, dependencies
on kmod-ipv6 can no longer be fulfilled, since it is not a module anymore.

Signed-off-by: Arjen de Korte <arjen+openwrt@de-korte.org>

SVN-Revision: 47022
2015-09-21 21:15:41 +00:00
Steven Barth
bec9d38fa4 Add a few SPDX tags
Signed-off-by: Steven Barth <steven@midlink.org>

SVN-Revision: 43151
2014-11-02 12:20:54 +00:00
Steven Barth
6e2262898f GRE: Tos support
Tos support is added as a generic grev4/grev6 parameter which can have the following values :
     -inherit (outer header inherits the tos value of the inner header)
     -hex value

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

SVN-Revision: 42700
2014-09-29 18:00:02 +00:00
Steven Barth
bc0acb9db9 gre: Change hostdependcy to remote endpoint tunnel address
Depend on the GRE tunnel peeraddr to trigger setup of the tunnel interface.
Addresses the issue reported in https://lists.openwrt.org/pipermail/openwrt-devel/2014-August/027201.html

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

SVN-Revision: 41998
2014-08-05 09:57:55 +00:00
Steven Barth
7dabdbde78 gre: Generic Routing Encapsulation package support
The package supports Generic Routing Encapsulation support by registering following protocol kinds:
    -gre
    -gretap
    -grev6
    -grev6tap

Following options are valid for gre and gretap kinds:
    -ipaddr
    -peeraddr
    -df
    -mtu
    -ttl
    -tunlink
    -zone
    -ikey
    -okey
    -icsum
    -ocsum
    -iseqno
    -oseqno

The gretap kind supports additionally the network option

Following options are valid for grev6 and grev6tap kinds:
    -ip6addr
    -peer6addr
    -weakif
    -mtu
    -ttl
    -tunlink
    -zone
    -ikey
    -okey
    -icsum
    -ocsum
    -iseqno
    -oseqno

The grev6tap kind supports additionally the network option

Typical network config for a GREv4 tunnel :

config interface 'gre'
        option peeraddr '172.16.18.240'
        option mtu '1400'
        option proto 'gre'
        option tunlink 'wan'
        option zone 'tunnel'

Typical network config for a GREv4 tap tunnel :

config interface 'gretap'
        option peeraddr '195.207.5.79'
        option mtu '1400'
        option proto 'gretap'
        option zone 'tunnel'
        option tunlink 'wan'
        option network 'wlan_ap'

I added myself as maintainer for the moment; feel free to change.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

SVN-Revision: 41897
2014-07-30 13:22:24 +00:00