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 8PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN 9 10struct client_data_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 uint32_t xid; 15 uint8_t opt_mask[256 / 8]; /* Bitmask of options to send (-O option) */ 16// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ TODO: DHCPv6 has 16-bit option numbers 17 const char *interface; /* The name of the interface to use */ 18 char *pidfile; /* Optionally store the process ID */ 19 const char *script; /* User script to run at dhcp events */ 20 struct option_set *options; /* list of DHCP options to send to server */ 21 llist_t *envp; /* list of DHCP options used for env vars */ 22 23 unsigned first_secs; 24 unsigned last_secs; 25 26 int sockfd; 27 smallint listen_mode; 28 smallint state; 29} FIX_ALIASING; 30 31/* server_config sits in 1st half of bb_common_bufsiz1 */ 32#define client_data (*(struct client_data_t*)(&bb_common_bufsiz1[COMMON_BUFSIZE / 2])) 33 34#if ENABLE_FEATURE_UDHCP_PORT 35#define CLIENT_PORT (client_data.port) 36#define CLIENT_PORT6 (client_data.port) 37#else 38#define CLIENT_PORT 68 39#define CLIENT_PORT6 546 40#endif 41 42POP_SAVED_FUNCTION_VISIBILITY 43 44#endif 45