Add NpDrmPackage

Reversed and documented by @173210.
See http://173210.github.io/scenpdrmpackage

2 files changed, 56 insertions, 0 deletions

diff --git a/include/user/npdrmpackage.h b/include/user/npdrmpackage.h
new file mode 100644
index 0000000..dc01421
--- /dev/null
+++ b/include/user/npdrmpackage.h
@@ -0,0 +1,47 @@
+#ifndef _PSP2_NPDRMPACKAGE_H_
+#define _PSP2_NPDRMPACKAGE_H_
+
+#include <psp2/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Options for _sceNpDrmPackageDecrypt */
+typedef struct {
+	/** The offset in the encrypted data */
+	SceOff offset;
+
+	/**
+	 * The identifier specified for _sceNpDrmPackageCheck but NOT ORed
+     * with (1 << 8)
+	 */
+	unsigned int identifier;
+} _sceNpDrmPackageDecrypt_opt;
+
+/**
+ * Read the header of the PKG and initialize the context
+ *
+ * @param buffer - The buffer containing the header of PKG.
+ * @param size - The size of buffer. The minimum confirmed value is 0x8000.
+ * @param zero - Unknown. Supposed to be set to 0.
+ * @param identifier - arbitrary value [0, 6) ORed with (1 << 8) or 0.
+ *                     If it is set to 0, the function just checks the header
+ *                     and doesn't create the context.
+ */
+int _sceNpDrmPackageCheck(const void *buffer, SceSize size, int zero, unsigned int identifier);
+
+/**
+ * Decrypt a PKG
+ *
+ * @param buffer - The buffer containing the content of the PKG.
+ * @param size - The size of the buffer. The minimum confirmed value is 0x20.
+ * @param opt - The options.
+ */
+int _sceNpDrmPackageDecrypt(void * restrict buffer, SceSize size, _sceNpDrmPackageDecrypt_opt * restrict opt);
+	
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PSP2_NPDRMPACKAGE_H_ */
diff --git a/nids/360/SceNpDrmPackage.yml b/nids/360/SceNpDrmPackage.yml
new file mode 100644
index 0000000..e7731fe
--- /dev/null
+++ b/nids/360/SceNpDrmPackage.yml
@@ -0,0 +1,9 @@
+modules:
+  SceNpDrmPackage:
+    nid: 0x00000078
+    libraries:
+      SceNpDrmPackage:
+        nid: 0x88514DB2
+        functions:
+          _sceNpDrmPackageCheck: 0xA1D885FA
+          _sceNpDrmPackageDecrypt: 0xD6F05ACC