/* vi: set sw=4 ts=4: */ /* common.h * * Russ Dill <Russ.Dill@asu.edu> September 2001 * Rewritten by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003 * * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ #ifndef _COMMON_H #define _COMMON_H #include "busybox.h" #define DEFAULT_SCRIPT "/usr/share/udhcpc/default.script" #define COMBINED_BINARY /*** packet.h ***/ #include <netinet/udp.h> #include <netinet/ip.h> struct dhcpMessage { uint8_t op; uint8_t htype; uint8_t hlen; uint8_t hops; uint32_t xid; uint16_t secs; uint16_t flags; uint32_t ciaddr; uint32_t yiaddr; uint32_t siaddr; uint32_t giaddr; uint8_t chaddr[16]; uint8_t sname[64]; uint8_t file[128]; uint32_t cookie; uint8_t options[308]; /* 312 - cookie */ }; struct udp_dhcp_packet { struct iphdr ip; struct udphdr udp; struct dhcpMessage data; }; void udhcp_init_header(struct dhcpMessage *packet, char type); int udhcp_get_packet(struct dhcpMessage *packet, int fd); uint16_t udhcp_checksum(void *addr, int count); int udhcp_raw_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port, uint32_t dest_ip, int dest_port, uint8_t *dest_arp, int ifindex); int udhcp_kernel_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port, uint32_t dest_ip, int dest_port); /**/ void udhcp_background(const char *pidfile); void udhcp_start_log_and_pid(const char *pidfile); void udhcp_run_script(struct dhcpMessage *packet, const char *name); // Still need to clean these up... /* from pidfile.h */ #define pidfile_acquire udhcp_pidfile_acquire #define pidfile_write_release udhcp_pidfile_write_release /* from options.h */ #define get_option udhcp_get_option #define end_option udhcp_end_option #define add_option_string udhcp_add_option_string #define add_simple_option udhcp_add_simple_option #define option_lengths udhcp_option_lengths /* from socket.h */ #define listen_socket udhcp_listen_socket #define read_interface udhcp_read_interface /* from dhcpc.h */ #define client_config udhcp_client_config /* from dhcpd.h */ #define server_config udhcp_server_config long uptime(void); void udhcp_sp_setup(void); int udhcp_sp_fd_set(fd_set *rfds, int extra_fd); int udhcp_sp_read(fd_set *rfds); int raw_socket(int ifindex); int read_interface(const char *interface, int *ifindex, uint32_t *addr, uint8_t *arp); int listen_socket(uint32_t ip, int port, const char *inf); int pidfile_acquire(const char *pidfile); void pidfile_write_release(int pid_fd); int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface); #if ENABLE_FEATURE_UDHCP_DEBUG # define DEBUG(str, args...) bb_info_msg(str, ## args) #else # define DEBUG(str, args...) do {;} while (0) #endif #endif