guix/gnu/packages/patches/libcamera-ipa_manager-disable-signature-verification.patch

From c99706475cde3d963a17f4f8871149711ce6c467 Mon Sep 17 00:00:00 2001
From: Andrew Tropin <andrew@trop.in>
Date: Wed, 4 Sep 2024 21:36:16 +0400
Subject: [PATCH] libcamera: ipa_manager: Disable signature verification

---
 src/libcamera/ipa_manager.cpp | 28 +++++-----------------------
 1 file changed, 5 insertions(+), 23 deletions(-)

diff --git a/src/libcamera/ipa_manager.cpp b/src/libcamera/ipa_manager.cpp
index cfc24d38..4fd3cf3e 100644
--- a/src/libcamera/ipa_manager.cpp
+++ b/src/libcamera/ipa_manager.cpp
@@ -284,33 +284,15 @@ IPAModule *IPAManager::module(PipelineHandler *pipe, uint32_t minVersion,
 
 bool IPAManager::isSignatureValid([[maybe_unused]] IPAModule *ipa) const
 {
-#if HAVE_IPA_PUBKEY
-	char *force = utils::secure_getenv("LIBCAMERA_IPA_FORCE_ISOLATION");
-	if (force && force[0] != '\0') {
-		LOG(IPAManager, Debug)
-			<< "Isolation of IPA module " << ipa->path()
-			<< " forced through environment variable";
-		return false;
-	}
-
-	File file{ ipa->path() };
-	if (!file.open(File::OpenModeFlag::ReadOnly))
-		return false;
-
-	Span<uint8_t> data = file.map();
-	if (data.empty())
-		return false;
-
-	bool valid = pubKey_.verify(data, ipa->signature());
+	LOG(IPAManager, Debug)
+		<< "Signature verification is disabled by Guix. "
+		<< "See https://issues.guix.gnu.org/72828 for more details.";
 
 	LOG(IPAManager, Debug)
 		<< "IPA module " << ipa->path() << " signature is "
-		<< (valid ? "valid" : "not valid");
+		<< "not verified (verification skipped).";
 
-	return valid;
-#else
-	return false;
-#endif
+	return true;
 }
 
 } /* namespace libcamera */
-- 
2.45.2