Merge pull request #28568 from Faless/net/lws_rollback_3.0.1_pr

Roll back libwebsockets to version 3.0.1

1 files changed, 202 insertions, 0 deletions

diff --git a/thirdparty/libwebsockets/tls/mbedtls/lws-genhash.c b/thirdparty/libwebsockets/tls/mbedtls/lws-genhash.c
new file mode 100644
index 0000000000..ce4ee6e382
--- /dev/null
+++ b/thirdparty/libwebsockets/tls/mbedtls/lws-genhash.c
@@ -0,0 +1,202 @@
+/*
+ * libwebsockets - generic hash and HMAC api hiding the backend
+ *
+ * Copyright (C) 2017 Andy Green <andy@warmcat.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation:
+ *  version 2.1 of the License.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA  02110-1301  USA
+ *
+ *  lws_genhash provides a hash / hmac abstraction api in lws that works the
+ *  same whether you are using openssl or mbedtls hash functions underneath.
+ */
+#include "libwebsockets.h"
+#include <mbedtls/version.h>
+
+#if (MBEDTLS_VERSION_NUMBER >= 0x02070000)
+#define MBA(fn) fn##_ret
+#else
+#define MBA(fn) fn
+#endif
+
+size_t
+lws_genhash_size(enum lws_genhash_types type)
+{
+	switch(type) {
+	case LWS_GENHASH_TYPE_SHA1:
+		return 20;
+	case LWS_GENHASH_TYPE_SHA256:
+		return 32;
+	case LWS_GENHASH_TYPE_SHA384:
+		return 48;
+	case LWS_GENHASH_TYPE_SHA512:
+		return 64;
+	}
+
+	return 0;
+}
+
+int
+lws_genhash_init(struct lws_genhash_ctx *ctx, enum lws_genhash_types type)
+{
+	ctx->type = type;
+
+	switch (ctx->type) {
+	case LWS_GENHASH_TYPE_SHA1:
+		mbedtls_sha1_init(&ctx->u.sha1);
+		MBA(mbedtls_sha1_starts)(&ctx->u.sha1);
+		break;
+	case LWS_GENHASH_TYPE_SHA256:
+		mbedtls_sha256_init(&ctx->u.sha256);
+		MBA(mbedtls_sha256_starts)(&ctx->u.sha256, 0);
+		break;
+	case LWS_GENHASH_TYPE_SHA384:
+		mbedtls_sha512_init(&ctx->u.sha512);
+		MBA(mbedtls_sha512_starts)(&ctx->u.sha512, 1 /* is384 */);
+		break;
+	case LWS_GENHASH_TYPE_SHA512:
+		mbedtls_sha512_init(&ctx->u.sha512);
+		MBA(mbedtls_sha512_starts)(&ctx->u.sha512, 0);
+		break;
+	default:
+		return 1;
+	}
+
+	return 0;
+}
+
+int
+lws_genhash_update(struct lws_genhash_ctx *ctx, const void *in, size_t len)
+{
+	switch (ctx->type) {
+	case LWS_GENHASH_TYPE_SHA1:
+		MBA(mbedtls_sha1_update)(&ctx->u.sha1, in, len);
+		break;
+	case LWS_GENHASH_TYPE_SHA256:
+		MBA(mbedtls_sha256_update)(&ctx->u.sha256, in, len);
+		break;
+	case LWS_GENHASH_TYPE_SHA384:
+		MBA(mbedtls_sha512_update)(&ctx->u.sha512, in, len);
+		break;
+	case LWS_GENHASH_TYPE_SHA512:
+		MBA(mbedtls_sha512_update)(&ctx->u.sha512, in, len);
+		break;
+	}
+
+	return 0;
+}
+
+int
+lws_genhash_destroy(struct lws_genhash_ctx *ctx, void *result)
+{
+	switch (ctx->type) {
+	case LWS_GENHASH_TYPE_SHA1:
+		MBA(mbedtls_sha1_finish)(&ctx->u.sha1, result);
+		mbedtls_sha1_free(&ctx->u.sha1);
+		break;
+	case LWS_GENHASH_TYPE_SHA256:
+		MBA(mbedtls_sha256_finish)(&ctx->u.sha256, result);
+		mbedtls_sha256_free(&ctx->u.sha256);
+		break;
+	case LWS_GENHASH_TYPE_SHA384:
+		MBA(mbedtls_sha512_finish)(&ctx->u.sha512, result);
+		mbedtls_sha512_free(&ctx->u.sha512);
+		break;
+	case LWS_GENHASH_TYPE_SHA512:
+		MBA(mbedtls_sha512_finish)(&ctx->u.sha512, result);
+		mbedtls_sha512_free(&ctx->u.sha512);
+		break;
+	}
+
+	return 0;
+}
+
+size_t
+lws_genhmac_size(enum lws_genhmac_types type)
+{
+	switch(type) {
+	case LWS_GENHMAC_TYPE_SHA256:
+		return 32;
+	case LWS_GENHMAC_TYPE_SHA384:
+		return 48;
+	case LWS_GENHMAC_TYPE_SHA512:
+		return 64;
+	}
+
+	return 0;
+}
+
+int
+lws_genhmac_init(struct lws_genhmac_ctx *ctx, enum lws_genhmac_types type,
+		 const uint8_t *key, size_t key_len)
+{
+	int t;
+
+	ctx->type = type;
+
+	switch (type) {
+	case LWS_GENHMAC_TYPE_SHA256:
+		t = MBEDTLS_MD_SHA256;
+		break;
+	case LWS_GENHMAC_TYPE_SHA384:
+		t = MBEDTLS_MD_SHA384;
+		break;
+	case LWS_GENHMAC_TYPE_SHA512:
+		t = MBEDTLS_MD_SHA512;
+		break;
+	default:
+		return -1;
+	}
+
+	ctx->hmac = mbedtls_md_info_from_type(t);
+	if (!ctx->hmac)
+		return -1;
+
+	if (mbedtls_md_init_ctx(&ctx->ctx, ctx->hmac))
+		return -1;
+
+	if (mbedtls_md_hmac_starts(&ctx->ctx, key, key_len)) {
+		mbedtls_md_free(&ctx->ctx);
+		ctx->hmac = NULL;
+
+		return -1;
+	}
+
+	return 0;
+}
+
+int
+lws_genhmac_update(struct lws_genhmac_ctx *ctx, const void *in, size_t len)
+{
+	if (mbedtls_md_hmac_update(&ctx->ctx, in, len))
+		return -1;
+
+	return 0;
+}
+
+int
+lws_genhmac_destroy(struct lws_genhmac_ctx *ctx, void *result)
+{
+	int n = 0;
+
+	if (result)
+		n = mbedtls_md_hmac_finish(&ctx->ctx, result);
+
+	mbedtls_md_free(&ctx->ctx);
+	ctx->hmac = NULL;
+	if (n)
+		return -1;
+
+	return 0;
+}