1 files changed, 61 insertions, 0 deletions

diff --git a/src/pluto/alg/ike_alg_sha2.c b/src/pluto/alg/ike_alg_sha2.c
new file mode 100644
index 000000000..ad24f7cf0
--- /dev/null
+++ b/src/pluto/alg/ike_alg_sha2.c
@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <string.h>
+#include <stddef.h>
+#include <sys/types.h>
+#include <freeswan.h>
+
+#include "constants.h"
+#include "defs.h"
+#include "log.h"
+#include "libsha2/sha2.h"
+#include "alg_info.h"
+#include "ike_alg.h"
+
+#define  SHA2_256_DIGEST_SIZE	(256/BITS_PER_BYTE)
+#define  SHA2_512_DIGEST_SIZE	(512/BITS_PER_BYTE)
+
+static void sha256_hash_final(u_char *hash, sha256_context *ctx)
+{
+	sha256_final(ctx);
+	memcpy(hash, &ctx->sha_out[0], SHA2_256_DIGEST_SIZE);
+}
+static void sha512_hash_final(u_char *hash, sha512_context *ctx)
+{
+	sha512_final(ctx);
+	memcpy(hash, &ctx->sha_out[0], SHA2_512_DIGEST_SIZE);
+}
+struct hash_desc hash_desc_sha2_256 = {
+	algo_type: IKE_ALG_HASH,
+	algo_id:   OAKLEY_SHA2_256,
+	algo_next: NULL,
+	hash_ctx_size: sizeof(sha256_context),
+        hash_init: (void (*)(void *))sha256_init,
+	hash_update: (void (*)(void *, const u_char *, size_t ))sha256_write,
+	hash_final:(void (*)(u_char *, void *))sha256_hash_final,
+	hash_digest_size: SHA2_256_DIGEST_SIZE,
+};
+struct hash_desc hash_desc_sha2_512 = {
+	algo_type: IKE_ALG_HASH,
+	algo_id:   OAKLEY_SHA2_512,
+	algo_next: NULL,
+	hash_ctx_size: sizeof(sha512_context),
+        hash_init: (void (*)(void *))sha512_init,
+	hash_update: (void (*)(void *, const u_char *, size_t ))sha512_write,
+	hash_final:(void (*)(u_char *, void *))sha512_hash_final,
+	hash_digest_size: SHA2_512_DIGEST_SIZE,
+};
+int ike_alg_sha2_init(void);
+int
+ike_alg_sha2_init(void)
+{
+	int ret;
+	ret = ike_alg_register_hash(&hash_desc_sha2_256);
+	if (ret)
+		goto out;
+	ret = ike_alg_register_hash(&hash_desc_sha2_512);
+out:
+	return ret;
+}
+/*
+IKE_ALG_INIT_NAME: ike_alg_sha2_init
+*/