include/grub/net/netbuff.h

   1 #ifndef GRUB_NETBUFF_HEADER
   2 #define GRUB_NETBUFF_HEADER
   3
   4 #include <grub/misc.h>
   5
   6 #define NETBUFF_ALIGN 2048
   7 #define NETBUFFMINLEN 64
   8
   9 struct grub_net_buff
  10 {
  11   /* Pointer to the start of the buffer.  */
  12   grub_uint8_t *head;
  13   /* Pointer to the data.  */
  14   grub_uint8_t *data;
  15   /* Pointer to the tail.  */
  16   grub_uint8_t *tail;
  17   /* Pointer to the end of the buffer.  */
  18   grub_uint8_t *end;
  19 };
  20
  21 grub_err_t grub_netbuff_put (struct grub_net_buff *net_buff, grub_size_t len);
  22 grub_err_t grub_netbuff_unput (struct grub_net_buff *net_buff, grub_size_t len);
  23 grub_err_t grub_netbuff_push (struct grub_net_buff *net_buff, grub_size_t len);
  24 grub_err_t grub_netbuff_pull (struct grub_net_buff *net_buff, grub_size_t len);
  25 grub_err_t grub_netbuff_reserve (struct grub_net_buff *net_buff, grub_size_t len);
  26 grub_err_t grub_netbuff_clear (struct grub_net_buff *net_buff);
  27 struct grub_net_buff * grub_netbuff_alloc (grub_size_t len);
  28 grub_err_t grub_netbuff_free (struct grub_net_buff *net_buff);
  29
  30 #endif