From 97d8340bd81ddd60baac598d3e25ebfb4decb50c Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sat, 21 Aug 2021 21:43:26 +0200
Subject: configfile: add Validate() function, support FlagXChaCha20Poly1305

We used to do validation using lists of mandatory feature flags.

With the introduction of XChaCha20Poly1305, this became too
simplistic, as it uses a different IV length, hence disabling
GCMIV128.

Add a dedicated function, Validate(), with open-coded validation
logic.

The validation and creation logic also gets XChaCha20Poly1305
support, and gocryptfs -init -xchacha now writes the flag into
gocryptfs.conf.
---
 init_dir.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'init_dir.go')

diff --git a/init_dir.go b/init_dir.go
index 8f11351..c6539c8 100644
--- a/init_dir.go
+++ b/init_dir.go
@@ -96,7 +96,8 @@ func initDir(args *argContainer) {
 			Devrandom:          args.devrandom,
 			Fido2CredentialID:  fido2CredentialID,
 			Fido2HmacSalt:      fido2HmacSalt,
-			DeterministicNames: args.deterministic_names})
+			DeterministicNames: args.deterministic_names,
+			XChaCha20Poly1305:  args.xchacha})
 		if err != nil {
 			tlog.Fatal.Println(err)
 			os.Exit(exitcodes.WriteConf)
-- 
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