networking/udhcp/dhcpc.h

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Licensed under GPLv2, see file LICENSE in this source tree.
   4  */
   5 #ifndef UDHCP_DHCPC_H
   6 #define UDHCP_DHCPC_H 1
   7
   8 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
   9
  10 struct client_config_t {
  11         uint8_t client_mac[6];          /* Our mac address */
  12         IF_FEATURE_UDHCP_PORT(uint16_t port;)
  13         int ifindex;                    /* Index number of the interface to use */
  14         uint8_t opt_mask[256 / 8];      /* Bitmask of options to send (-O option) */
  15 // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ TODO: DHCPv6 has 16-bit option numbers
  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         struct option_set *options;     /* list of DHCP options to send to server */
  20         uint8_t *clientid;              /* Optional client id to use */
  21         uint8_t *vendorclass;           /* Optional vendor class-id to use */
  22         uint8_t *hostname;              /* Optional hostname to use */
  23         uint8_t *fqdn;                  /* Optional fully qualified domain name to use */
  24
  25         uint16_t first_secs;
  26         uint16_t last_secs;
  27
  28         int sockfd;
  29         smallint listen_mode;
  30         smallint state;
  31 } FIX_ALIASING;
  32
  33 /* server_config sits in 1st half of bb_common_bufsiz1 */
  34 #define client_config (*(struct client_config_t*)(&bb_common_bufsiz1[COMMON_BUFSIZE / 2]))
  35
  36 #if ENABLE_FEATURE_UDHCP_PORT
  37 #define CLIENT_PORT  (client_config.port)
  38 #define CLIENT_PORT6 (client_config.port)
  39 #else
  40 #define CLIENT_PORT  68
  41 #define CLIENT_PORT6 546
  42 #endif
  43
  44 POP_SAVED_FUNCTION_VISIBILITY
  45
  46 #endif