com32/include/dhcp.h

   1 #ifndef DHCP_H
   2 #define DHCP_H
   3
   4 #include <inttypes.h>
   5
   6 struct dhcp_option {
   7         void *data;
   8         int len;
   9 };
  10
  11 struct dhcp_packet {
  12         uint8_t op;             /*   0 */
  13         uint8_t htype;          /*   1 */
  14         uint8_t hlen;           /*   2 */
  15         uint8_t hops;           /*   3 */
  16         uint32_t xid;           /*   4 */
  17         uint16_t secs;          /*   8 */
  18         uint16_t flags;         /*  10 */
  19         uint32_t ciaddr;        /*  12 */
  20         uint32_t yiaddr;        /*  16 */
  21         uint32_t siaddr;        /*  20 */
  22         uint32_t giaddr;        /*  24 */
  23         uint8_t chaddr[16];     /*  28 */
  24         uint8_t sname[64];      /*  44 */
  25         uint8_t file[128];      /* 108 */
  26         uint32_t magic;         /* 236 */
  27         uint8_t options[4];     /* 240 */
  28 };
  29
  30 #define DHCP_VENDOR_MAGIC       0x63825363
  31
  32 int dhcp_pack_packet(void *packet, size_t *len,
  33                      const struct dhcp_option opt[256]);
  34
  35 int dhcp_unpack_packet(const void *packet, size_t len,
  36                        struct dhcp_option opt[256]);
  37
  38 #endif /* DHCP_H */
  39
  40