[PATCH v2 0/3] *** net: DHCPv6 protocol and commands ***

[seanedmond@linux.microsoft.com]

From: Sean Edmond <seanedmond@microsoft.com>

The recently integrated IPv6 patch series relies on the link-local address,
or a statically assigned IPv6 address for network operations.  This patch
series adds IPv6 address assignment through DHCPv6.

The implementation meets the requirements in RFC 8415 for "Client/Server
Exchanges Involving Four Messages":
https://www.rfc-editor.org/rfc/rfc8415

The implementation sends/receives the minimum required DHCPv6 options to 
network boot.

A new command (dhcp6) will execute the protocol.  In addition, IPv6
functionality has been extended to the existing pxe commands ("pxe get"
and "pxe boot").

changes in v2:
- Add sandbox test in test_net.py
- Add CONFIG_CMD_DHCP6 to sandbox_defconfig
- fix comment style (/**/ instead of //)
- move addition of Kconfig from 1st patch to 2nd patch
- Fix warning (warning: label ‘error_exit’ defined but not used") when 
  CONFIG_DHCP6_PXE_DHCP_OPTION not configured
- Fix dhcp6 command help
- Use net_set_timeout_handler(0, NULL) in dhcpv6.c
- Move USE_IP6_CMD_PARAM back to net6.h

Sean Edmond (3):
  net: dhcp6: Add DHCPv6 (DHCP for IPv6)
  net: dhcp6: pxe: Add DHCP/PXE commands for IPv6
  net: dhcp6: Add a sandbox test for dhcp6

 boot/bootmeth_distro.c    |   2 +-
 boot/bootmeth_pxe.c       |   4 +-
 boot/pxe_utils.c          |   3 +-
 cmd/Kconfig               |  26 ++
 cmd/net.c                 |  23 ++
 cmd/pxe.c                 |  86 ++++-
 cmd/sysboot.c             |   2 +-
 configs/sandbox_defconfig |   1 +
 include/net.h             |   8 +-
 include/pxe_utils.h       |  10 +-
 net/Makefile              |   1 +
 net/dhcpv6.c              | 735 ++++++++++++++++++++++++++++++++++++++
 net/dhcpv6.h              | 212 +++++++++++
 net/net.c                 |  12 +
 test/py/tests/test_net.py |  25 ++
 15 files changed, 1132 insertions(+), 18 deletions(-)
 create mode 100644 net/dhcpv6.c
 create mode 100644 net/dhcpv6.h

-- 
2.40.0