1 files changed, 133 insertions, 0 deletions
diff --git a/blobmsg.h b/blobmsg.h
new file mode 100644
index 0000000..9e71939
--- /dev/null
+++ b/blobmsg.h
@@ -0,0 +1,133 @@
+/*
+ * blobmsg - library for generating/parsing structured blob messages
+ *
+ * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation
+ *
+ * This program 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 General Public License for more details.
+ */
+
+#ifndef __BLOBMSG_H
+#define __BLOBMSG_H
+
+#include "blob.h"
+
+#define BLOBMSG_ALIGN	2
+#define BLOBMSG_PADDING(len) (((len) + (1 << BLOBMSG_ALIGN) - 1) & ~((1 << BLOBMSG_ALIGN) - 1))
+
+enum blobmsg_type {
+	BLOBMSG_TYPE_UNSPEC,
+	BLOBMSG_TYPE_ARRAY,
+	BLOBMSG_TYPE_TABLE,
+	BLOBMSG_TYPE_STRING,
+	BLOBMSG_TYPE_INT64,
+	BLOBMSG_TYPE_INT32,
+	BLOBMSG_TYPE_INT16,
+	BLOBMSG_TYPE_INT8
+};
+
+struct blobmsg_hdr {
+	uint8_t namelen;
+	uint8_t name[];
+} __packed;
+
+struct blobmsg_policy {
+	const char *name;
+	enum blobmsg_type type;
+};
+
+static inline int blobmsg_hdrlen(int namelen)
+{
+	return BLOBMSG_PADDING(sizeof(struct blobmsg_hdr) + namelen + 1);
+}
+
+static inline void *blobmsg_data(struct blob_attr *attr)
+{
+	struct blobmsg_hdr *hdr = blob_data(attr);
+	return &hdr->name[blobmsg_hdrlen(hdr->namelen) - 1];
+}
+
+static inline int blobmsg_data_len(struct blob_attr *attr)
+{
+	uint8_t *start, *end;
+
+	start = blob_data(attr);
+	end = blobmsg_data(attr);
+
+	return blob_len(attr) - (end - start);
+}
+
+int blobmsg_parse(const struct blobmsg_policy *policy, int policy_len,
+                  struct blob_attr **tb, void *data, int len);
+
+int blobmsg_add_field(struct blob_buf *buf, int type, const char *name,
+                      const void *data, int len);
+
+static inline int
+blobmsg_add_u8(struct blob_buf *buf, const char *name, uint8_t val)
+{
+	return blobmsg_add_field(buf, BLOBMSG_TYPE_INT8, name, &val, 1);
+}
+
+static inline int
+blobmsg_add_u16(struct blob_buf *buf, const char *name, uint16_t val)
+{
+	return blobmsg_add_field(buf, BLOBMSG_TYPE_INT16, name, &val, 2);
+}
+
+static inline int
+blobmsg_add_u32(struct blob_buf *buf, const char *name, uint32_t val)
+{
+	return blobmsg_add_field(buf, BLOBMSG_TYPE_INT32, name, &val, 4);
+}
+
+static inline int
+blobmsg_add_u64(struct blob_buf *buf, const char *name, uint64_t val)
+{
+	return blobmsg_add_field(buf, BLOBMSG_TYPE_INT64, name, &val, 8);
+}
+
+static inline int
+blobmsg_add_string(struct blob_buf *buf, const char *name, const char *string)
+{
+	return blobmsg_add_field(buf, BLOBMSG_TYPE_STRING, name, string, strlen(string) + 1);
+}
+
+void *blobmsg_open_nested(struct blob_buf *buf, const char *name, bool array);
+
+static inline void *
+blobmsg_open_array(struct blob_buf *buf, const char *name)
+{
+	return blobmsg_open_nested(buf, name, true);
+}
+
+static inline void *
+blobmsg_open_table(struct blob_buf *buf, const char *name)
+{
+	return blobmsg_open_nested(buf, name, false);
+}
+
+static inline void
+blobmsg_close_array(struct blob_buf *buf, void *cookie)
+{
+	blob_nest_end(buf, cookie);
+}
+
+static inline void
+blobmsg_close_table(struct blob_buf *buf, void *cookie)
+{
+	blob_nest_end(buf, cookie);
+}
+
+static inline int blobmsg_buf_init(struct blob_buf *buf)
+{
+	return blob_buf_init(buf, BLOBMSG_TYPE_TABLE);
+}
+
+#endif