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-rw-r--r--src/libcamera/ipa_module.cpp29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/libcamera/ipa_module.cpp b/src/libcamera/ipa_module.cpp
index 5b6af15f..51b238a6 100644
--- a/src/libcamera/ipa_module.cpp
+++ b/src/libcamera/ipa_module.cpp
@@ -308,6 +308,20 @@ int IPAModule::loadIPAModuleInfo()
return -EINVAL;
}
+ /* Load the signature. Failures are not fatal. */
+ File sign{ libPath_ + ".sign" };
+ if (!sign.open(File::ReadOnly)) {
+ LOG(IPAModule, Debug)
+ << "IPA module " << libPath_ << " is not signed";
+ return 0;
+ }
+
+ data = sign.map(0, -1, File::MapPrivate);
+ signature_.resize(data.size());
+ memcpy(signature_.data(), data.data(), data.size());
+
+ LOG(IPAModule, Debug) << "IPA module " << libPath_ << " is signed";
+
return 0;
}
@@ -340,6 +354,21 @@ const struct IPAModuleInfo &IPAModule::info() const
}
/**
+ * \brief Retrieve the IPA module signature
+ *
+ * The IPA module signature is stored alongside the IPA module in a file with a
+ * '.sign' suffix, and is loaded when the IPAModule instance is created. This
+ * function returns the signature without verifying it. If the signature is
+ * missing, the returned vector will be empty.
+ *
+ * \return The IPA module signature
+ */
+const std::vector<uint8_t> IPAModule::signature() const
+{
+ return signature_;
+}
+
+/**
* \brief Retrieve the IPA module path
*
* The IPA module path is the file name and path of the IPA module shared