1 /* vi: set sw=4 ts=4: */
4 * Russ Dill <Russ.Dill@asu.edu> September 2001
5 * Rewritten by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003
7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
15 #define DEFAULT_SCRIPT "/usr/share/udhcpc/default.script"
17 #define COMBINED_BINARY
22 #include <netinet/udp.h>
23 #include <netinet/ip.h>
41 uint8_t options[308]; /* 312 - cookie */
44 struct udp_dhcp_packet {
47 struct dhcpMessage data;
50 void udhcp_init_header(struct dhcpMessage *packet, char type);
51 int udhcp_get_packet(struct dhcpMessage *packet, int fd);
52 uint16_t udhcp_checksum(void *addr, int count);
53 int udhcp_raw_packet(struct dhcpMessage *payload,
54 uint32_t source_ip, int source_port,
55 uint32_t dest_ip, int dest_port, uint8_t *dest_arp, int ifindex);
56 int udhcp_kernel_packet(struct dhcpMessage *payload,
57 uint32_t source_ip, int source_port,
58 uint32_t dest_ip, int dest_port);
63 void udhcp_background(const char *pidfile);
64 void udhcp_start_log_and_pid(const char *pidfile);
66 void udhcp_run_script(struct dhcpMessage *packet, const char *name);
68 // Still need to clean these up...
71 #define pidfile_acquire udhcp_pidfile_acquire
72 #define pidfile_write_release udhcp_pidfile_write_release
74 #define get_option udhcp_get_option
75 #define end_option udhcp_end_option
76 #define add_option_string udhcp_add_option_string
77 #define add_simple_option udhcp_add_simple_option
78 #define option_lengths udhcp_option_lengths
80 #define listen_socket udhcp_listen_socket
81 #define read_interface udhcp_read_interface
83 #define client_config udhcp_client_config
85 #define server_config udhcp_server_config
88 void udhcp_sp_setup(void);
89 int udhcp_sp_fd_set(fd_set *rfds, int extra_fd);
90 int udhcp_sp_read(fd_set *rfds);
91 int raw_socket(int ifindex);
92 int read_interface(char *interface, int *ifindex, uint32_t *addr, uint8_t *arp);
93 int listen_socket(uint32_t ip, int port, char *inf);
94 int pidfile_acquire(const char *pidfile);
95 void pidfile_write_release(int pid_fd);
96 int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface);
98 #if ENABLE_FEATURE_UDHCP_DEBUG
99 # define DEBUG(str, args...) bb_info_msg(str, ## args)
101 # define DEBUG(str, args...) do {;} while (0)