#include "utils.h"
+#define BLOB_COOKIE 0x01234567
+
enum {
BLOB_ATTR_UNSPEC,
BLOB_ATTR_NESTED,
BLOB_ATTR_LAST
};
-#define BLOB_ATTR_ID_MASK 0xff000000
+#define BLOB_ATTR_ID_MASK 0x7f000000
#define BLOB_ATTR_ID_SHIFT 24
#define BLOB_ATTR_LEN_MASK 0x00ffffff
#define BLOB_ATTR_ALIGN 4
+#define BLOB_ATTR_EXTENDED 0x80000000
struct blob_attr {
uint32_t id_len;
return id;
}
+static inline bool
+blob_is_extended(const struct blob_attr *attr)
+{
+ return !!(attr->id_len & cpu_to_be32(BLOB_ATTR_EXTENDED));
+}
+
/*
* blob_len: returns the length of the attribute's payload
*/
extern bool blob_check_type(const void *ptr, int len, int type);
extern int blob_parse(struct blob_attr *attr, struct blob_attr **data, const struct blob_attr_info *info, int max);
extern struct blob_attr *blob_memdup(struct blob_attr *attr);
+extern struct blob_attr *blob_put_raw(struct blob_buf *buf, const void *ptr, int len);
static inline struct blob_attr *
blob_put_string(struct blob_buf *buf, int id, const char *str)
#define __blob_for_each_attr(pos, attr, rem) \
for (pos = (void *) attr; \
- rem > 0 && (blob_pad_len(pos) <= rem) && \
- (blob_pad_len(pos) >= sizeof(struct blob_attr)); \
- rem -= blob_pad_len(pos), pos = blob_next(pos))
+ rem > 0 && (blob_pad_len(pos) <= rem) && \
+ (blob_pad_len(pos) >= sizeof(struct blob_attr)); \
+ rem -= blob_pad_len(pos), pos = blob_next(pos))
#define blob_for_each_attr(pos, attr, rem) \
- for (rem = blob_len(attr), pos = blob_data(attr); \
- rem > 0 && (blob_pad_len(pos) <= rem) && \
- (blob_pad_len(pos) >= sizeof(struct blob_attr)); \
- rem -= blob_pad_len(pos), pos = blob_next(pos))
+ for (rem = attr ? blob_len(attr) : 0, \
+ pos = attr ? blob_data(attr) : 0; \
+ rem > 0 && (blob_pad_len(pos) <= rem) && \
+ (blob_pad_len(pos) >= sizeof(struct blob_attr)); \
+ rem -= blob_pad_len(pos), pos = blob_next(pos))
#endif