static inline struct blob_attr *
offset_to_attr(struct blob_buf *buf, int offset)
{
- void *ptr = (char *)buf->buf + offset;
+ void *ptr = (char *)buf->buf + offset - BLOB_COOKIE;
return ptr;
}
static inline int
attr_to_offset(struct blob_buf *buf, struct blob_attr *attr)
{
- return (char *)attr - (char *) buf->buf;
+ return (char *)attr - (char *) buf->buf + BLOB_COOKIE;
}
void
blob_add(struct blob_buf *buf, struct blob_attr *pos, int id, int payload)
{
int offset = attr_to_offset(buf, pos);
- int required = (offset + sizeof(struct blob_attr) + payload) - buf->buflen;
+ int required = (offset - BLOB_COOKIE + sizeof(struct blob_attr) + payload) - buf->buflen;
struct blob_attr *attr;
if (required > 0) {
void
blob_set_raw_len(struct blob_attr *attr, unsigned int len)
{
- int id = blob_id(attr);
len &= BLOB_ATTR_LEN_MASK;
- len |= (id << BLOB_ATTR_ID_SHIFT) & BLOB_ATTR_ID_MASK;
- attr->id_len = cpu_to_be32(len);
+ attr->id_len &= ~cpu_to_be32(BLOB_ATTR_LEN_MASK);
+ attr->id_len |= cpu_to_be32(len);
}
struct blob_attr *