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test: ipv4 in v6 address checking (#1271)

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* test: ipv4 in v6 address checking

* fix(lib/policy): unmap 4in6 addresses in RemoteAddrChecker

Signed-off-by: Xe Iaso <me@xeiaso.net>

* docs: update CHANGELOG

Signed-off-by: Xe Iaso <me@xeiaso.net>

* docs: perfect CHANGELOG

Signed-off-by: Xe Iaso <me@xeiaso.net>

---------

Signed-off-by: Xe Iaso <me@xeiaso.net>
Co-authored-by: Xe Iaso <me@xeiaso.net>
This commit is contained in:
Henri Vasserman 2025-11-14 05:39:50 +02:00 • committed by GitHub
parent 1e298f5d0e
commit a5bb6d2751
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3 changed files with 22 additions and 2 deletions
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5
lib/policy/checker.go
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@ -51,6 +51,11 @@ func (rac *RemoteAddrChecker) Check(r *http.Request) (bool, error) {
return false, fmt.Errorf("%w: %s is not an IP address: %w", ErrMisconfiguration, host, err)
}
// Convert IPv4-mapped IPv6 addresses to IPv4
if addr.Is6() && addr.Is4In6() {
addr = addr.Unmap()
}
return rac.prefixTable.Contains(addr), nil
}