This is a direct dump from systemd git on 2015-04-08, git commit
431c3b6bab9c; it updates the existing files and imports systemd IPv4LL
implementation.

    SYSTEMD_DIR=../systemd
    COMMIT=431c3b6bab9ceb54cd144d8df24d764a8a5f8fcc

    (
       cd "$SYSTEMD_DIR"
       git checkout "$COMMIT"
       git reset --hard
       git clean -fdx
    )
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd/sd-id128/sd-id128.c ./src/systemd/src/libsystemd/sd-id128/sd-id128.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-identifier.c ./src/systemd/src/libsystemd-network/dhcp-identifier.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-identifier.h ./src/systemd/src/libsystemd-network/dhcp-identifier.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-internal.h ./src/systemd/src/libsystemd-network/dhcp-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-lease-internal.h ./src/systemd/src/libsystemd-network/dhcp-lease-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-network.c ./src/systemd/src/libsystemd-network/dhcp-network.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-option.c ./src/systemd/src/libsystemd-network/dhcp-option.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-packet.c ./src/systemd/src/libsystemd-network/dhcp-packet.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp-protocol.h ./src/systemd/src/libsystemd-network/dhcp-protocol.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-internal.h ./src/systemd/src/libsystemd-network/dhcp6-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-lease-internal.h ./src/systemd/src/libsystemd-network/dhcp6-lease-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-network.c ./src/systemd/src/libsystemd-network/dhcp6-network.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-option.c ./src/systemd/src/libsystemd-network/dhcp6-option.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/dhcp6-protocol.h ./src/systemd/src/libsystemd-network/dhcp6-protocol.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/network-internal.c ./src/systemd/src/libsystemd-network/network-internal.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/network-internal.h ./src/systemd/src/libsystemd-network/network-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp-client.c ./src/systemd/src/libsystemd-network/sd-dhcp-client.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp-lease.c ./src/systemd/src/libsystemd-network/sd-dhcp-lease.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp6-client.c ./src/systemd/src/libsystemd-network/sd-dhcp6-client.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-dhcp6-lease.c ./src/systemd/src/libsystemd-network/sd-dhcp6-lease.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/ipv4ll-internal.h ./src/systemd/src/libsystemd-network/ipv4ll-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/ipv4ll-internal.h ./src/systemd/src/libsystemd-network/ipv4ll-internal.h
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/ipv4ll-network.c ./src/systemd/src/libsystemd-network/ipv4ll-network.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network//ipv4ll-packet.c ./src/systemd/src/libsystemd-network//ipv4ll-packet.c
    /bin/cp "$SYSTEMD_DIR"/src/libsystemd-network/sd-ipv4ll.c ./src/systemd/src/libsystemd-network/sd-ipv4ll.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/async.h ./src/systemd/src/shared/async.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/fileio.c ./src/systemd/src/shared/fileio.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/fileio.h ./src/systemd/src/shared/fileio.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/list.h ./src/systemd/src/shared/list.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/log.h ./src/systemd/src/shared/log.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/macro.h ./src/systemd/src/shared/macro.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/path-util.c ./src/systemd/src/shared/path-util.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/path-util.h ./src/systemd/src/shared/path-util.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/refcnt.h ./src/systemd/src/shared/refcnt.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/siphash24.c ./src/systemd/src/shared/siphash24.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/siphash24.h ./src/systemd/src/shared/siphash24.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/socket-util.h ./src/systemd/src/shared/socket-util.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/sparse-endian.h ./src/systemd/src/shared/sparse-endian.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/strv.c ./src/systemd/src/shared/strv.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/strv.h ./src/systemd/src/shared/strv.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/time-util.c ./src/systemd/src/shared/time-util.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/time-util.h ./src/systemd/src/shared/time-util.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/utf8.c ./src/systemd/src/shared/utf8.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/utf8.h ./src/systemd/src/shared/utf8.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/util.c ./src/systemd/src/shared/util.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/util.h ./src/systemd/src/shared/util.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/unaligned.h ./src/systemd/src/shared/unaligned.h
    /bin/cp "$SYSTEMD_DIR"/src/shared/in-addr-util.c ./src/systemd/src/shared/in-addr-util.c
    /bin/cp "$SYSTEMD_DIR"/src/shared/in-addr-util.h ./src/systemd/src/shared/in-addr-util.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/_sd-common.h ./src/systemd/src/systemd/_sd-common.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp-client.h ./src/systemd/src/systemd/sd-dhcp-client.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp-lease.h ./src/systemd/src/systemd/sd-dhcp-lease.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp6-client.h ./src/systemd/src/systemd/sd-dhcp6-client.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-dhcp6-lease.h ./src/systemd/src/systemd/sd-dhcp6-lease.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-event.h ./src/systemd/src/systemd/sd-event.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-id128.h ./src/systemd/src/systemd/sd-id128.h
    /bin/cp "$SYSTEMD_DIR"/src/systemd/sd-ipv4ll.h ./src/systemd/src/systemd/sd-ipv4ll.h