daemon: tentative to fix SNMP indexes depending on sysUpTime

daemon: use monotonic clock for age

Fix #572.

However, this break two things:

 - existing client comparing the age to the non-monotonic clock
 - SNMP agent which should report time since start time which is not
   monotonic either

client: don't output empty lines on configure commands

lib: remove unreachable code

daemon: fix read overflow when parsing CDP addresses

build: bump cachix/install-nix-action from 18 to 20

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 18 to 20.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](https://github.com/cachix/install-nix-action/compare/v18...v20)

---
updated-dependencies:
- dependency-name: cachix/install-nix-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

interfaces: fix use of isdigit()

It is expecting an unsigned char. Make a cast.

build: bump cross-platform-actions/action from 0.7.0 to 0.10.0

Bumps [cross-platform-actions/action](https://github.com/cross-platform-actions/action) from 0.7.0 to 0.10.0.
- [Release notes](https://github.com/cross-platform-actions/action/releases)
- [Changelog](https://github.com/cross-platform-actions/action/blob/master/changelog.md)
- [Commits](https://github.com/cross-platform-actions/action/compare/v0.7.0...v0.10.0)

---
updated-dependencies:
- dependency-name: cross-platform-actions/action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

build: bump docker/build-push-action from 3 to 4

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3 to 4.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v3...v4)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

build: don't run clang build with SNMP support

The flags from net-snmp-config does not work with clang. This is always
a mess.

build: bump cross-platform-actions/action from 0.6.2 to 0.7.0 (#566)

build: fix lldpcli build

build: better integration of fuzz-decode in build process

I need it to reproduce crashs. Get rid of `build.sh` which does not work
with OOT compilation. Move the needed bits inside README. Simplify some
of the flags used.

interfaces: properly initialize ethtool structure

build: make all char unsigned

This is something that may be used by the kernel later. char may be
signed or unsigned depending on the architecture, so catching that may
be difficult without this option.

tests: mark "too_many_vlans" test as unreliable

m4/progname.m4: Include <stdio.h> for printf in lldp_CHECK___PROGNAME

Otherwise the checks always fails with a compiler that does not
support implict function declarations.

tests: give more time to lldpd when handling many VLANs

tests: use prefixlen instead of mask with pyroute2

tests: upgrade pytest and others to more recent versions

tests: fix warnings about format string

build: switch back to apheleia

Merge pull request #563 from lldpd/dependabot/github_actions/actions/cache-3

build: bump actions/cache from 2 to 3

Bumps [actions/cache](https://github.com/actions/cache) from 2 to 3.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/v2...v3)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

src/client: add two missing commands to manual page

Fix #480

build: update two additional docker actions

build: fix release script to work with OOT build dir

osx: update Homebrew recipe

build: bump docker/build-push-action from 2 to 3

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2 to 3.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v2...v3)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

build: bump docker/login-action from 1 to 2

Bumps [docker/login-action](https://github.com/docker/login-action) from 1 to 2.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v1...v2)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

build: bump docker/metadata-action from 3 to 4

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 3 to 4.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Upgrade guide](https://github.com/docker/metadata-action/blob/master/UPGRADE.md)
- [Commits](https://github.com/docker/metadata-action/compare/v3...v4)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

build: bump cachix/install-nix-action from 17 to 18

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 17 to 18.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](https://github.com/cachix/install-nix-action/compare/v17...v18)

---
updated-dependencies:
- dependency-name: cachix/install-nix-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

build: bump actions/download-artifact from 2 to 3

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v2...v3)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

build: add dependabot

build: update some actions to remove warnings

build: update set-output method for GitHub action

release: 1.0.16

build: add .git-blame-ignore-revs file

build: reformat code

ci: enforce a format style with clang-format and black

On PR, we could use git-clang-format instead.

ci: add an Emacs script to format C files

    git ls-files '*.c' '*.h' \
        | grep -v '^include/' \
        | xargs emacs -Q --batch -l tests/ci/openbsd-knf-style.el

build: move again stuff using libfuzzer

And fix documentation.

build: fix fuzz-decode automake

oss-fuzz and fuzzer files #551

Signed-off-by: 0x34d <ajsinghyadav00@gmail.com>

ci: update cross-platform-actions to 0.6.2

To get OpenBSD 7.1.

ci: do not try to compile SNMP on MacOS

Broken, I don't think anybody is really using it. For some reason, the
Homebrew version does not take over.

ci: test with OpenBSD 7.1

Latest is 7.2, but it's good to build with the version before. 6.9 not
available anymore.

ci: try to install NetSNMP from Homebrew

The one shipped with MacOS is broken.

```
checking whether C compiler supports flag "-DNETSNMP_ENABLE_IPV6 -fno-strict-aliasing -g -Os -pipe -DBUILD=174 -DMACOSX_DEPLOYMENT_TARGET=12.6 --sysroot /Applications/Xcode_14.0.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk -iframeworkwithsysroot /System/Library/Frameworks/-1788-11ed-b9c4-96898e02b808/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.6.Internal.sdk/System/Library/PrivateFrameworks/ -1788-11ed-b9c4-96898e02b808/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.6.Internal.sdk/System/Library/Frameworks/ -iwithsysroot /usr/local/libressl/include -L/AppleInternal/Library/BuildRoots/a0876c02-1788-11ed-b9c4-96898e02b808/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.6.Internal.sdk/usr/local/libressl/lib -Udarwin21 -Ddarwin21=darwin21 -I/usr/local/include -DNETSNMP_NO_INLINE -lnetsnmpmibs -lnetsnmpagent -lnetsnmp"
```

daemon: name the ints returned by pattern_match() function

daemon: cleanup remote ports for permanent interfaces too

Otherwise, we will try to delete them again and again.

Fix #554

lib: fix types in custom TLVs documentation

Fix #550

client: document ability to have per-port custom TLVs

lib: zero receive buffer

This is not strictly needed as we only use the part that was correctly
written by recv(), but it helps static tool analysis.

build: really reset coverity cache

build: reset Coverity cache

daemon: do not use 00:00:00:00:00:00 as chassis ID

Fix #541

client: mention pause does not work in the configuration file

Fix #538

build: only build ARM64 docker images for releases

build: disable multi-arch build for now

We keep this as this would become handy in the future and people can
still try to use it.

build: ship universal binaries for macOS

This mostly reverts commit 737afb3517d822ae50722510993acbd097bc5aca.
We have to build in an OOT directory to make it work. This also
requires to bump minimum SDK to 11.1 (for ARM64 mostly but it also fix
an issue with strtonum() which is detected as available but really is
since 11.0 only).

This does not currently work as the host has to be ARM64 (to be able
to run both binaries). Otherwise, we would have to cross-compile. See
https://github.com/actions/runner-images/issues/2187 for availability.

build: try to run FreeBSD/OpenBSD on macos-latest

macos-10.15 environment is being deprecated.

build: prefer install in /usr/local in Docker

It does not matter much, but this is more correct from a distribution
point of view.

release: 1.0.15

protocol/lldp: accept unknown TLVs on known orgs

Fix #532

client: make a connection before parsing inputs

This shows a clear error message if the socket does not exist and when
using privileged commands.

Fix #535.

doc: mention contributor of last commit

client: Added support to override system capabilities

1) configure system capabilities enabled <capability_0,capability_1,...>

    Override system capabilities with the provided value instead of using kernel information. Several capabilities can be specified separated by commas. Only available capabilities can be enabled. Valid capabilities are:

        other
        repeater
        bridge
        wlan
        router
        telephone
        docsis
        station

    Here is an example of use:

        lldpcli configure system capabilities enabled bridge,router

2) unconfigure system capabilities enabled

    Do not override capabilities and use the kernel information. This option undoes the previous one.

Ignacio Sanchez Navarro (Ignacio.Sanchez@uws.ac.uk) - University of the West of Scotland - Supported by H2020-ICT-2020-2/101017226 6G-BRAINS

-------------------------------------------------------------------------------
Modified files

lldpd-structs.h
    - Added new attribute "c_cap_override" to "lldpd_config" struct

conf-system.c
    - Added new function "cmd_capability" for new command to override the chassis capabilities
    - Added new function "register_commands_capabilities" to registers new commands to override the chassis capabilities
    - Added call to "register_commands_capabilities" in "register_commands_configure_system"

chassis.c
    - Added new function "_lldpctl_atom_st_int_chassis" to set "int" type vars in chassis
    - Added assignation of ".set_int" function in "chassis" var build

config.c
    - Added case for "lldpctl_k_config_chassis_cap_override" to get value of "c_cap_override" in "_lldpctl_atom_get_int_config" function
    - Added case for "lldpctl_k_config_chassis_cap_override" to set value of "c_cap_override" in "_lldpctl_atom_set_int_config" function

client.c
    - Added changes check for "c_cap_override" var in "client_handle_set_configuration" function
    - Added changes check for "c_cap_enabled" var in "client_handle_set_local_chassis" function

lldpctl.h
    - Added new enum values un "lldpctl_key_t" enum : "lldpctl_k_chassis_cap_enabled" and "lldpctl_k_config_chassis_cap_override"
    - Corrected some typos in previous comments

lldpd.c
    - Added check of capabilities override before setting new values in "lldpd_update_localchassis" function
    - Added check of capabilities override before setting initial value of "c_cap_enabled" to 0 in "lldpd_loop" function
    - Added initial set of "cfg->g_config.c_cap_override" to 0 in "lldpd_main" function

interfaces.c
    - Added check of capabilities override before setting new values in "interfaces_helper_chassis" function

display.c
    - Added new line to display the status of capabilities override in "show configration" command

lldpcli.8.in
    - Added new commands and descriptions to man file

build: update flake.lock

github: only build tags, master branch and pull requests

github: revert last change

The template is shown as text, so no need to escape backticks.

github: show how to use triple backticks

netlink: fix indentation

netlink: ignore IPv6 temporary addresses

tests: really fix "too many VLANs" test

We want to have a neighbor, but without VLANs.

doc: add an entry for latest commit

Also fix the test!

lldp: don't send vlan when without_vlans is set

Fixes: 8e9dbbf80918 "lldp: don't send VLANs when there are too many of them
On interface with a lot of vlans, we still have "Too big packet"
notification on version 1.0.14

It looks like retry does exactly the same packet than first try

debian: update debhelper to 9

release: 1.0.14

Revert "lib: update version-info"

This reverts commit e069bba4ec993cc4df14fab3a7108f43e3b66714. My bad,
this should not be changed just because of new stuff in enums. Only
additional functions require an update.

lib: update version-info

This is reverse-compatible with previous versions.

doc: add a NEWS entry for latest commits

docs: fix discussion ID related to VLAN issues

doc: Add docs for (un)configure inventory commands

tests: Add inventory configuration tests

med: Add configure inventory commands

Default inventory information is fetched from dmi table.
Most of embedded devices do not run EFI bootloader hence dmi information
will not be available in /sys/class/dmi

- Add `configure inventory` commands
- Add `unconfigure inventory` commands
- New code is dependent on enable-lldpmed
- Add write support on lldpctl atoms
- Add support for setting inventory configuration in daemon
- Refactor `lldp_med` to assign `c_med_sw` only once.
  We have the configurability of inventory information, So
  it is not required for daemon to keep assigning `c_med_sw`

tests: ensure we free pyroute2 resources

lldp: don't send VLANs when there are too many of them

doc: restore note about Intel cards

People using older versions of lldpd may not find this information
easily. So put it back in the README.

docker: fix build on Alpine by requiring bsd-compat-headers for sys/queue.h

As it is self-contained, we could surely just include it.

include: add back include/linux for old distributions

However, we don't ship sys/queue.h and netinet/if_ether.h. At some
point, we may want to explore just shipping uapi directory. This has
been tested with Debian 8.

include: nuke include directory for BSD and Linux

We keep OSX for now as it is small and isolated (and it's difficult to
test).

Fix #503 (but really, the patch is just included)

ci: only run distcheck if we are doing a release

ci: tentative to also build on FreeBSD/NetBSD/OpenBSD

This could work with NetBSD, but this is far too slow. Give up on it.
Also, use different jobs for Linux and MacOS.

build: use `cc -E` instead of `cpp` to build atom list

For some reason, with OpenBSD, `cpp` only half expand the macros when
invoked as `cpp`, but it works just fine with `clang -E`.

build: define _OPENBSD_SOURCE on NetBSD

doc: use @sysconfdir@ for /etc in manual pages

ci: try to run make check even with clang

The mentioned issue has been solved.

build: explain current alternative

build: add a mention why we still use nix-gitignore

build: use Nix flake