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FreeBSD: Skip inet6 addresses matching ::1 #1838

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@feld feld commented Sep 11, 2024

Fixes #1835

@feld feld requested review from a team as code owners September 11, 2024 19:18
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@feld please add DCO

@@ -68,6 +68,7 @@
end
end
if line =~ /\s+inet6 ([a-f0-9\:]+)%?(\w*)\s+prefixlen\s+(\d+)\s*\w*\s*([\da-fx]*)/
next if $1 == "::1"
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I'm not sure if this is the right approach. Is ::1 the only inet6 line in your ifconfig?

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No, I have fe80 addresses on all the interfaces and those are properly excluded.

Sometimes ::1 is on lo1 and not lo0, but it should always see my inet6 addresses starting with 2600 first and it doesn't pick them up. It always takes the ::1 as the default address for some strange reason.

On a very vanilla out-of-the-box FreeBSD install with IPv6 enabled Chef will pick up ::1 as the IPv6 address. This is the only way I found to fix it.

@tpowell-progress tpowell-progress self-assigned this Oct 1, 2024
@tpowell-progress tpowell-progress added the Status: Waiting on Contributor A pull request that has unresolved requested actions from the author. label Oct 1, 2024
@feld feld force-pushed the freebsd-ipv6-addr branch from 9ea4383 to 78e7f34 Compare October 10, 2024 19:20
@feld feld force-pushed the freebsd-ipv6-addr branch from 78e7f34 to cfadfcb Compare October 10, 2024 19:25
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sonarcloud bot commented Oct 10, 2024

jaymzh added a commit to jaymzh/ohai that referenced this pull request Oct 22, 2024
This adds unittests for the FreeBSD network plugin. It also fixes
various issues:

* It now running on modern freebsd which has extra columns in netstat output.
* It now properly reports encapuslation, MTU, and metric

It also includes a test case with `::1` on `lo1` to start building out
support for sorting out chef#1838

Signed-off-by: Phil Dibowitz <[email protected]>
jaymzh added a commit to jaymzh/ohai that referenced this pull request Oct 22, 2024
This adds unittests for the FreeBSD network plugin. It also fixes
various issues:

* It now running on modern freebsd which has extra columns in netstat output.
* It now properly reports encapuslation, MTU, and metric

It also includes a test case with `::1` on `lo1` to start building out
support for sorting out chef#1838

Signed-off-by: Phil Dibowitz <[email protected]>
jaymzh added a commit to jaymzh/ohai that referenced this pull request Oct 22, 2024
This adds unittests for the FreeBSD network plugin. It also fixes
various issues:

* It now running on modern freebsd which has extra columns in netstat output.
* It now properly reports encapuslation, MTU, and metric

It also includes a test case with `::1` on `lo1` to start building out
support for sorting out chef#1838

Signed-off-by: Phil Dibowitz <[email protected]>
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jaymzh commented Oct 22, 2024

After writing #1841 I THINK I know what the problem is here.

FreeBSD reports no scope for global addresses. Further, it uses scopeIDs, not scopes, so the sorting that happens here doesn't work at all.

So the right fix here is to modify this code to:

  1. Convert scopeIds into scope names
  2. If no scopeID is there, just set it to 'global' which seems to be what FreeBSD is assuming.

jaymzh added a commit to jaymzh/ohai that referenced this pull request Oct 22, 2024
This adds unittests for the FreeBSD network plugin. It also fixes
various issues:

* It now running on modern freebsd which has extra columns in netstat output.
* It now properly reports encapuslation, MTU, and metric

It also includes a test case with `::1` on `lo1` to start building out
support for sorting out chef#1838

Signed-off-by: Phil Dibowitz <[email protected]>
jaymzh added a commit to jaymzh/ohai that referenced this pull request Oct 22, 2024
This adds unittests for the FreeBSD network plugin. It also fixes
various issues:

* It now running on modern freebsd which has extra columns in netstat output.
* It now properly reports encapuslation, MTU, and metric

It also includes a test case with `::1` on `lo1` to start building out
support for sorting out chef#1838

Signed-off-by: Phil Dibowitz <[email protected]>
jaymzh added a commit to jaymzh/ohai that referenced this pull request Oct 22, 2024
This adds unittests for the FreeBSD network plugin. It also fixes
various issues:

* It now running on modern freebsd which has extra columns in netstat output.
* It now properly reports encapuslation, MTU, and metric

It also includes a test case with `::1` on `lo1` to start building out
support for sorting out chef#1838

Signed-off-by: Phil Dibowitz <[email protected]>
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jaymzh commented Nov 5, 2024

@feld - ping?

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@feld following up

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jaymzh commented Nov 26, 2024

@dafyddcrosby wants to look at this - will wait to close.

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@dafyddcrosby wants to look at this - will wait to close.

If If I haven't tested this by December 3rd's community PR review (or if @feld responds), can close then

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@dafyddcrosby wants to look at this - will wait to close.

If If I haven't tested this by December 3rd's community PR review (or if @feld responds), can close then

@jaymzh Didn't get time over the weekend, and don't know when I will in the next few weeks, so let's close for now.

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jaymzh commented Dec 3, 2024

Closing due to no response from original author.

@jaymzh jaymzh closed this Dec 3, 2024
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ip6address not detected correctly on FreeBSD
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