From 1e8a72e7a0abaaa02a03d0f1d04c4bdc3bc1b00d Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Mon, 30 Oct 2023 17:57:23 +0100
Subject: [PATCH] chunk: Add helper to hash chunks via pointer

---
 src/libstrongswan/utils/chunk.c | 8 ++++++++
 src/libstrongswan/utils/chunk.h | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/src/libstrongswan/utils/chunk.c b/src/libstrongswan/utils/chunk.c
index f40a379c5..c8153f4f0 100644
--- a/src/libstrongswan/utils/chunk.c
+++ b/src/libstrongswan/utils/chunk.c
@@ -1088,6 +1088,14 @@ uint32_t chunk_hash(chunk_t chunk)
 	return chunk_mac(chunk, hash_key);
 }
 
+/*
+ * Described in header.
+ */
+uint32_t chunk_hash_ptr(chunk_t *chunk)
+{
+	return chunk_hash(*chunk);
+}
+
 /**
  * Described in header.
  */
diff --git a/src/libstrongswan/utils/chunk.h b/src/libstrongswan/utils/chunk.h
index 0ee38d27d..b9fc56b1b 100644
--- a/src/libstrongswan/utils/chunk.h
+++ b/src/libstrongswan/utils/chunk.h
@@ -414,6 +414,15 @@ void chunk_hash_seed();
  */
 uint32_t chunk_hash(chunk_t chunk);
 
+/**
+ * Same as chunk_hash() but takes a pointer to a chunk. Can be used in
+ * hashtables.
+ *
+ * @param chunk			pointer to chunk to hash
+ * @return				hash value
+ */
+uint32_t chunk_hash_ptr(chunk_t *chunk);
+
 /**
  * Incremental version of chunk_hash. Use this to hash two or more chunks.
  *