Use separate list for per-client push options

Use separate list for per-client push options

v4:
 - fix whitespaces, wrap long lines

v3:
 - rebase on master

v2:
 - Also move ifconfig and ipv6-ifconfig to separate options list

Move client-specific push options (currently peer-id and cipher) to
separate list, which is deallocated after push_reply
has been send. This makes sure that options fit into buf,
not duplicated nor leak memory on renegotiation.

Signed-off-by: Lev Stipakov <lstipakov@gmail.com>
Acked-by: Steffan Karger <steffan@karger.me>
Message-Id: <1476173030-2171-1-git-send-email-lstipakov@gmail.com>
URL: http://www.mail-archive.com/search?l=mid&q=1476173030-2171-1-git-send-email-lstipakov@gmail.com
Signed-off-by: David Sommerseth <davids@openvpn.net>