release/src/router/busybox/networking/udhcp/dhcpc.h

   1 /* vi: set sw=4 ts=4: */
   2 /* dhcpc.h */
   3 #ifndef UDHCP_DHCPC_H
   4 #define UDHCP_DHCPC_H 1
   5
   6 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
   7
   8 struct client_config_t {
   9         uint8_t arp[6];                 /* Our arp address */
  10         /* TODO: combine flag fields into single "unsigned opt" */
  11         /* (can be set directly to the result of getopt32) */
  12         char no_default_options;        /* Do not include default optins in request */
  13         USE_FEATURE_UDHCP_PORT(uint16_t port;)
  14         int ifindex;                    /* Index number of the interface to use */
  15         uint8_t opt_mask[256 / 8];      /* Bitmask of options to send (-O option) */
  16         const char *interface;          /* The name of the interface to use */
  17         char *pidfile;                  /* Optionally store the process ID */
  18         const char *script;             /* User script to run at dhcp events */
  19         uint8_t *clientid;              /* Optional client id to use */
  20         uint8_t *vendorclass;           /* Optional vendor class-id to use */
  21         uint8_t *hostname;              /* Optional hostname to use */
  22         uint8_t *fqdn;                  /* Optional fully qualified domain name to use */
  23 };
  24
  25 /* server_config sits in 1st half of bb_common_bufsiz1 */
  26 #define client_config (*(struct client_config_t*)(&bb_common_bufsiz1[COMMON_BUFSIZE / 2]))
  27
  28 #if ENABLE_FEATURE_UDHCP_PORT
  29 #define CLIENT_PORT (client_config.port)
  30 #else
  31 #define CLIENT_PORT 68
  32 #endif
  33
  34
  35 /*** clientpacket.h ***/
  36
  37 uint32_t random_xid(void) FAST_FUNC;
  38 int send_discover(uint32_t xid, uint32_t requested) FAST_FUNC;
  39 int send_select(uint32_t xid, uint32_t server, uint32_t requested) FAST_FUNC;
  40 #if ENABLE_FEATURE_UDHCPC_ARPING
  41 int send_decline(uint32_t xid, uint32_t server, uint32_t requested) FAST_FUNC;
  42 #endif
  43 int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr) FAST_FUNC;
  44 int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr) FAST_FUNC;
  45 int send_release(uint32_t server, uint32_t ciaddr) FAST_FUNC;
  46
  47 int udhcp_recv_raw_packet(struct dhcpMessage *payload, int fd) FAST_FUNC;
  48
  49 POP_SAVED_FUNCTION_VISIBILITY
  50
  51 #endif