dispatcher: introduce new env variables for gateway address (bgo #740363)

IP4_GATEWAY
VPN_IP4_GATEWAY
IP6_GATEWAY
VPN_IP6_GATEWAY

We still put gateway into IP[46]_ADDRESS_N for backward compatibility.

https://bugzilla.gnome.org/show_bug.cgi?id=740363
man: update version reference to 1.0 in manual pages
man: fix formatting leftover from man -> xml migration
cli: Watch for device as well as AC state changes when activating

The signals might be delivered in no particular order and we need to wait for
the device to reach stable state (whether it's successfully conntected or not)
as well as the active connection to leave ACTIVATING state.
cli: Watch for device as well as AC state changes when activating

The signals might be delivered in no particular order and we need to wait for
the device to reach stable state (whether it's successfully conntected or not)
as well as the active connection to leave ACTIVATING state.

https://bugzilla.gnome.org/show_bug.cgi?id=740320
core: minor fix to ensure safe boolean comparison in have_ip6_address()

Signed-off-by: Thomas Haller <thaller@redhat.com>
dhcp: update systemd DHCP code

This is a direct dump from systemd git on 2014-11-19, git commit
a4962513.  Only relevant files were included.

    SYSTEMD_DIR=../systemd
    COMMIT=a4962513c555fe3ac4b5bebf97a71701361a45b0

    (
       cd "$SYSTEMD_DIR"
       git checkout "$COMMIT"
       git clean -fdx
    )
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-internal.h ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-lease-internal.h ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp-lease-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-network.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp-network.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-option.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp-option.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-packet.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp-packet.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-protocol.h ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp-protocol.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-internal.h ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp6-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-lease-internal.h ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp6-lease-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-network.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp6-network.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-option.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp6-option.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-protocol.h ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/dhcp6-protocol.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/network-internal.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/network-internal.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/network-internal.h ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/network-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp-client.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/sd-dhcp-client.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp-lease.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/sd-dhcp-lease.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp6-client.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/sd-dhcp6-client.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp6-lease.c ./src/dhcp-manager/systemd-dhcp/src/libsystemd-network/sd-dhcp6-lease.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/async.h ./src/dhcp-manager/systemd-dhcp/src/shared/async.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/fileio.c ./src/dhcp-manager/systemd-dhcp/src/shared/fileio.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/fileio.h ./src/dhcp-manager/systemd-dhcp/src/shared/fileio.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/list.h ./src/dhcp-manager/systemd-dhcp/src/shared/list.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/macro.h ./src/dhcp-manager/systemd-dhcp/src/shared/macro.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/refcnt.h ./src/dhcp-manager/systemd-dhcp/src/shared/refcnt.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/siphash24.c ./src/dhcp-manager/systemd-dhcp/src/shared/siphash24.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/siphash24.h ./src/dhcp-manager/systemd-dhcp/src/shared/siphash24.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/socket-util.h ./src/dhcp-manager/systemd-dhcp/src/shared/socket-util.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/sparse-endian.h ./src/dhcp-manager/systemd-dhcp/src/shared/sparse-endian.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/strv.c ./src/dhcp-manager/systemd-dhcp/src/shared/strv.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/strv.h ./src/dhcp-manager/systemd-dhcp/src/shared/strv.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/time-util.c ./src/dhcp-manager/systemd-dhcp/src/shared/time-util.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/time-util.h ./src/dhcp-manager/systemd-dhcp/src/shared/time-util.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/utf8.c ./src/dhcp-manager/systemd-dhcp/src/shared/utf8.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/utf8.h ./src/dhcp-manager/systemd-dhcp/src/shared/utf8.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/util.c ./src/dhcp-manager/systemd-dhcp/src/shared/util.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/util.h ./src/dhcp-manager/systemd-dhcp/src/shared/util.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/unaligned.h ./src/dhcp-manager/systemd-dhcp/src/shared/unaligned.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/in-addr-util.c ./src/dhcp-manager/systemd-dhcp/src/shared/in-addr-util.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/in-addr-util.h ./src/dhcp-manager/systemd-dhcp/src/shared/in-addr-util.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/_sd-common.h ./src/dhcp-manager/systemd-dhcp/src/systemd/_sd-common.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp-client.h ./src/dhcp-manager/systemd-dhcp/src/systemd/sd-dhcp-client.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp-lease.h ./src/dhcp-manager/systemd-dhcp/src/systemd/sd-dhcp-lease.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp6-client.h ./src/dhcp-manager/systemd-dhcp/src/systemd/sd-dhcp6-client.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp6-lease.h ./src/dhcp-manager/systemd-dhcp/src/systemd/sd-dhcp6-lease.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-event.h ./src/dhcp-manager/systemd-dhcp/src/systemd/sd-event.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-id128.h ./src/dhcp-manager/systemd-dhcp/src/systemd/sd-id128.h
trivial: fix a comment typo in generate-plugin-docs.pl
Merge branch 'master' into dhcp-merge

Conflicts:
	src/dhcp-manager/systemd-dhcp/src/libsystemd-network/sd-dhcp-client.c
	src/dhcp-manager/systemd-dhcp/src/libsystemd-network/sd-dhcp-lease.c
	src/dhcp-manager/systemd-dhcp/src/shared/fileio.c
	src/dhcp-manager/systemd-dhcp/src/shared/util.c
	src/dhcp-manager/systemd-dhcp/src/systemd/sd-dhcp-client.h
	src/dhcp-manager/systemd-dhcp/src/systemd/sd-dhcp-lease.h
dhcp: re-fix system-dhcp code after re-import
dhcp: update nm-dhcp-systemd code for system-dhcp re-import

Some of the patches we proposed were committed in slightly different
form.
dhcp: update system-dhcp code from upstream
dhcp: fix systemd-dhcp's writing of routes in lease file

inet_ntoa() uses a static buffer, so you can't call it twice in the
same fprintf() call.

https://bugs.freedesktop.org/show_bug.cgi?id=86438
dhcp: fix startup warnings with dhcp=internal

If asked to read a file that doesn't exist, sd_dhcp_lease_load()
returns 0 (success) without setting the out lease argument. So we need
to check both the return status and the lease before proceeding.
dhcp: Simplify nm-dhcp-systemd lease-handling code

An sd_dhcp_lease will always have an associated address, netmask, and
lifetime, so we don't have to check for errors when fetching them.
(The systemd code will fill in a default netmask if the server didn't
provide one; nm-dhcp-systemd's code to do that itself was redundant
and unused.)

Also, log the expiration time and NTP servers, for consistency with
everything else.
man: document the "internal" DHCP client
Merge branch 'dhcp-fixes'
cli: Only escape VPN banner if it's present

If the connection is in ACTIVATING state, the banner is still NULL.
vpn: Propagate daemon exec error correctly

NetworkManager[31624]: <warn>  VPN service 'openvpn': could not launch the VPN service. error: (8) Failed to execute child process "/usr/local/libexec/nm-openvpn-service" (No such file or directory).
**
NetworkManager:ERROR:nm-manager.c:3094:_activation_auth_done: assertion failed: (error)
libnm: Don't expect VPN connections to attach to the device