[PATCH v6 0/4] xdp-forwarder

[Yureka Lilian <yureka@cyberchaos.dev>]

The patches up to and including "vm/sys/net: build against pkgsMusl" can
be applied right away, while the last commit ("vm/sys/net: integrate
xdp-forwarder") does not make sense without the router.

Changes since v5:
- fix pkg-tests clang-tidy
- re-add hardeningDisable which was accidentally removed in v5

Changes since v4:
- Ensure all patches have my Signed-off-by
- add native: true to the find_prog(clang)
- Remove merge conflicts artifacts in the integration commit

Changes since v3:
- Apply suggestions from Demi in meson recipe, prog_*.c
- Split out the appSupport -> guestSupport rename into a seperate commit
- Split out the switch to pkgsMusl into a separate commit with reasoning
- rename set_router_iface to set-router-iface

Changes since v2:

- Switch xdp-forwarder build to meson
- Add guest build variant of spectrum-tools

Changes since v1:

- rebased
- apply new uncrustify config
- moved xdp-forwarder to tools/
- split integration into separate commit
- use linuxHeaders instead of vmlinux.h
- use original xdp-tutorial {parsing,rewrite}_helpers.h
- inlined the load scripts into /etc/iface/mdev, using /usr/lib/xdp as
  fixed prefix for finding the XDP progs
- removed the README, added a paragraph to architecture doc instead


Yureka Lilian (4):
  tools: add xdp-forwarder
  docs/architecture: add paragraph about networking
  vm/sys/net: build against pkgsMusl
  vm/sys/net: integrate xdp-forwarder

 Documentation/about/architecture.adoc         |  20 ++
 pkgs/default.nix                              |   4 +
 release/checks/pkg-tests.nix                  |   1 +
 tools/default.nix                             |  21 +-
 tools/meson.build                             |   4 +
 tools/meson_options.txt                       |   3 +
 tools/xdp-forwarder/meson.build               |  48 +++
 tools/xdp-forwarder/parsing_helpers.h         | 274 ++++++++++++++++++
 tools/xdp-forwarder/prog_physical.c           |  39 +++
 tools/xdp-forwarder/prog_router.c             |  42 +++
 tools/xdp-forwarder/rewrite_helpers.h         | 146 ++++++++++
 tools/xdp-forwarder/set_router_iface.c        |  30 ++
 vm/sys/net/Makefile                           |   8 +-
 vm/sys/net/default.nix                        |  23 +-
 vm/sys/net/image/etc/fstab                    |   2 +
 vm/sys/net/image/etc/mdev/iface               |  27 +-
 vm/sys/net/image/etc/nftables.conf            |   8 -
 vm/sys/net/image/etc/s6-rc/connman/type       |   1 -
 .../net/image/etc/s6-rc/connman/type.license  |   2 -
 .../net/image/etc/s6-rc/mdevd-coldplug/type   |   1 -
 .../net/image/etc/s6-rc/nftables/type.license |   2 -
 vm/sys/net/image/etc/s6-rc/nftables/up        |   6 -
 22 files changed, 652 insertions(+), 60 deletions(-)
 create mode 100644 tools/xdp-forwarder/meson.build
 create mode 100644 tools/xdp-forwarder/parsing_helpers.h
 create mode 100644 tools/xdp-forwarder/prog_physical.c
 create mode 100644 tools/xdp-forwarder/prog_router.c
 create mode 100644 tools/xdp-forwarder/rewrite_helpers.h
 create mode 100644 tools/xdp-forwarder/set_router_iface.c
 delete mode 100644 vm/sys/net/image/etc/nftables.conf
 delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/type
 delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/type.license
 delete mode 100644 vm/sys/net/image/etc/s6-rc/mdevd-coldplug/type
 delete mode 100644 vm/sys/net/image/etc/s6-rc/nftables/type.license
 delete mode 100644 vm/sys/net/image/etc/s6-rc/nftables/up

-- 
2.51.0