Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

Closes #1868.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

The default busybox config used by OpenWrt does not enable floating
point number support for the sleep applet. This can cause an error when
stopping or restarting strongswan:

sleep: invalid number '0.1'

Replace the float with an integer to fix this.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

Signed-off-by: Steven Barth <steven@midlink.org>

See https://wiki.strongswan.org/issues/1213

Removed the changes to charon-xpc.c because they didn't apply and are
only used on OS X anyway.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

gmpdh plugin implements DH Groups (same as normal GMP plugin), but links to GMP statically and is stripped of all RSA based stuff. Binary size for plugin is ~20kbytes with no dependency on libgmp (200+ kbytes after squash), easilly fitting into flash space restricted devices.

strongswan-isakmp metapackage defines a minimal set of strongswan plugins (including gmpdh) for ISAKMP / IKEv1 PSK tunnels. Will fit even 4mb routers (like tplink wr841n) with disabled IPv6 support and packages (so its a trade - IPv6 or ipsec tunnels).

Signed-of-by: Mikalai Miadzvedz <brainsucker.na@gmail.com>

Signed-off-by: Steven Barth <steven@midlink.org>

Signed-off-by: Steven Barth <steven@midlink.org>

Signed-off-by: Steven Barth <steven@midlink.org>

Signed-off-by: Steven Barth <steven@midlink.org>

Signed-off-by: Steven Barth <steven@midlink.org>

Signed-off-by: Steven Barth <steven@midlink.org>