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authorLennart Poettering <lennart@poettering.net>2021-10-11 11:15:08 +0200
committerLennart Poettering <lennart@poettering.net>2021-10-11 11:15:08 +0200
commitccd25f41f52e72846ea7940769076094e4601ec3 (patch)
treeca2af57f37233f6f52a62c9e1e0c7cd7fa3c7533 /docs/ENVIRONMENT.md
parent2c7ec8203ef38a21217c5777dcbebc622a2429ee (diff)
downloadsystemd-ccd25f41f52e72846ea7940769076094e4601ec3.tar.gz
docs: document $SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE
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diff --git a/docs/ENVIRONMENT.md b/docs/ENVIRONMENT.md
index 5b7c01d149..175bb8a819 100644
--- a/docs/ENVIRONMENT.md
+++ b/docs/ENVIRONMENT.md
@@ -364,3 +364,10 @@ disk images with `--image=` or similar:
against any of the certificates in `/etc/verity.d/*.crt` (and similar
directores in `/usr/lib/`, `/run`, …) or passed to the kernel for validation
against its built-in certificates.
+
+`systemd-cryptsetup`:
+
+* `$SYSTEMD_CRYPTSETUP_USE_TOKEN_MODULE` – takes a boolean, which controls
+ whether to use the libcryptsetup "token" plugin module logic even when
+ activating via FIDO2, PKCS#11, TPM2, i.e. mechanisms natively supported by
+ `systemd-cryptsetup`. Defaults to enabled.