Add: Host discovery for large IPv6 networks

[jjnicola]

What:
With this patch, the host discovery for large ipv6 networks is introduced together with a new alive test method (int 32).
Instead of creating a host list from an IPv6 network address and mask (e.g. 5858::0/64), which would take years to scan and it would consume all the RAM, it just call a new function in gvm-libs to perform an ICMPv6 to a multicast IPv6 address (ff02::1).
Later, the found host are set as target and they will be handle as before. To avoid a double alive test, they are just considered alive.

For now, it only supports only one IPv6 network address. This means it can not be combined with other networks or unicast addresses.

Also, it is required that the local network has ICMPv6 enabled, otherwise the discovery won't work.

Jira: SC-1574

Why:

How:

Checklist:

• Tests
• PR merge commit message adjusted

[github-actions]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ✅ 0 package(s) with incompatible licenses
• ✅ 0 package(s) with invalid SPDX license definitions
• ✅ 0 package(s) with unknown licenses.
• ⚠️ 1 packages with OpenSSF Scorecard issues.

See the Details below.

Snapshot Warnings

⚠️: No snapshots were found for the head SHA 5fa5275.

Ensure that dependencies are being submitted on PR branches and consider enabling retry-on-snapshot-warnings. See the documentation for more information and troubleshooting advice.

OpenSSF Scorecard

Package	Version	Score	Details
cargo/cidr	0.3.2	🟢 3.1	Details Check Score Reason Code-Review ⚠️ 0 Found 0/30 approved changesets -- score normalized to 0 Maintained ⚠️ 0 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Binary-Artifacts 🟢 10 no binaries found in the repo Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Packaging ⚠️ -1 packaging workflow not detected SAST ⚠️ 0 no SAST tool detected Pinned-Dependencies ⚠️ 0 dependency not pinned by hash detected -- score normalized to 0 CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Security-Policy ⚠️ 0 security policy file not detected Fuzzing ⚠️ 0 project is not fuzzed License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection ⚠️ -1 internal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
cargo/ipnet	2.12.0	⚠️ 2.8	Details Check Score Reason Packaging ⚠️ -1 packaging workflow not detected Token-Permissions ⚠️ -1 No tokens found Code-Review 🟢 3 Found 7/22 approved changesets -- score normalized to 3 Maintained ⚠️ 2 2 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 2 Binary-Artifacts 🟢 10 no binaries found in the repo Dangerous-Workflow ⚠️ -1 no workflows found Pinned-Dependencies ⚠️ -1 no dependencies found CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Fuzzing ⚠️ 0 project is not fuzzed Security-Policy ⚠️ 0 security policy file not detected License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection ⚠️ 0 branch protection not enabled on development/release branches SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0

Scanned Files

• rust/Cargo.lock

[jjnicola]

It depends on greenbone/gvm-libs#1058