Diff of /trunk/mkinitrd-magellan/busybox/networking/udhcp/common.h

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	revision 815 by niro, Sat Sep 1 22:45:15 2007 UTC	revision 816 by niro, Fri Apr 24 18:33:46 2009 UTC
#	Line 10	Line 10
10	#ifndef _COMMON_H	#ifndef _COMMON_H
11	#define _COMMON_H	#define _COMMON_H
12
13	#include "busybox.h"	#include "libbb.h"
14		#include <netinet/udp.h>
15		#include <netinet/ip.h>
16
17	#define DEFAULT_SCRIPT  "/usr/share/udhcpc/default.script"	#if __GNUC_PREREQ(4,1)
18		# pragma GCC visibility push(hidden)
19		#endif
20
21	#define COMBINED_BINARY	#define DEFAULT_SCRIPT   CONFIG_UDHCPC_DEFAULT_SCRIPT
22
23		extern const uint8_t MAC_BCAST_ADDR[6]; /* six all-ones */
24
25	/*** packet.h ***/	/*** packet.h ***/
26
27	#include <netinet/udp.h>	#define DHCP_OPTIONS_BUFSIZE  308
	#include <netinet/ip.h>
28
29	struct dhcpMessage {	struct dhcpMessage {
30	uint8_t op;	uint8_t op;      /* 1 = BOOTREQUEST, 2 = BOOTREPLY */
31	uint8_t htype;	uint8_t htype;   /* hardware address type. 1 = 10mb ethernet */
32	uint8_t hlen;	uint8_t hlen;    /* hardware address length */
33	uint8_t hops;	uint8_t hops;    /* used by relay agents only */
34	uint32_t xid;	uint32_t xid;    /* unique id */
35	uint16_t secs;	uint16_t secs;   /* elapsed since client began acquisition/renewal */
36	uint16_t flags;	uint16_t flags;  /* only one flag so far: */
37	uint32_t ciaddr;	#define BROADCAST_FLAG 0x8000 /* "I need broadcast replies" */
38	uint32_t yiaddr;	uint32_t ciaddr; /* client IP (if client is in BOUND, RENEW or REBINDING state) */
39	uint32_t siaddr;	uint32_t yiaddr; /* 'your' (client) IP address */
40	uint32_t giaddr;	uint32_t siaddr; /* IP address of next server to use in bootstrap,
41	uint8_t chaddr[16];	* returned in DHCPOFFER, DHCPACK by server */
42	uint8_t sname[64];	uint32_t giaddr; /* relay agent IP address */
43	uint8_t file[128];	uint8_t chaddr[16];/* link-layer client hardware address (MAC) */
44	uint32_t cookie;	uint8_t sname[64]; /* server host name (ASCIZ) */
45	uint8_t options[308]; /* 312 - cookie */	uint8_t file[128]; /* boot file name (ASCIZ) */
46	};	uint32_t cookie;   /* fixed first four option bytes (99,130,83,99 dec) */
47		uint8_t options[DHCP_OPTIONS_BUFSIZE + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS];
48		} PACKED;
49
50	struct udp_dhcp_packet {	struct udp_dhcp_packet {
51	struct iphdr ip;	struct iphdr ip;
52	struct udphdr udp;	struct udphdr udp;
53	struct dhcpMessage data;	struct dhcpMessage data;
54		} PACKED;
55
56		/* Let's see whether compiler understood us right */
57		struct BUG_bad_sizeof_struct_udp_dhcp_packet {
58		char BUG_bad_sizeof_struct_udp_dhcp_packet
59		[(sizeof(struct udp_dhcp_packet) != 576 + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS) ? -1 : 1];
60	};	};
61
62	void udhcp_init_header(struct dhcpMessage *packet, char type);	uint16_t udhcp_checksum(void *addr, int count) FAST_FUNC;
63	int udhcp_get_packet(struct dhcpMessage *packet, int fd);
64	uint16_t udhcp_checksum(void *addr, int count);	void udhcp_init_header(struct dhcpMessage *packet, char type) FAST_FUNC;
65	int udhcp_raw_packet(struct dhcpMessage *payload,
66		/*int udhcp_recv_raw_packet(struct dhcpMessage *payload, int fd); - in dhcpc.h */
67		int udhcp_recv_kernel_packet(struct dhcpMessage *packet, int fd) FAST_FUNC;
68
69		int udhcp_send_raw_packet(struct dhcpMessage *payload,
70	uint32_t source_ip, int source_port,	uint32_t source_ip, int source_port,
71	uint32_t dest_ip, int dest_port, uint8_t *dest_arp, int ifindex);	uint32_t dest_ip, int dest_port, const uint8_t *dest_arp,
72	int udhcp_kernel_packet(struct dhcpMessage *payload,	int ifindex) FAST_FUNC;
73
74		int udhcp_send_kernel_packet(struct dhcpMessage *payload,
75	uint32_t source_ip, int source_port,	uint32_t source_ip, int source_port,
76	uint32_t dest_ip, int dest_port);	uint32_t dest_ip, int dest_port) FAST_FUNC;
77
78
79	/**/	/**/
80
81	void udhcp_background(const char *pidfile);	void udhcp_run_script(struct dhcpMessage *packet, const char *name) FAST_FUNC;
	void udhcp_start_log_and_pid(const char *pidfile);
	void udhcp_run_script(struct dhcpMessage *packet, const char *name);
82
83	// Still need to clean these up...	// Still need to clean these up...
84
	/* from pidfile.h */
	#define pidfile_acquire udhcp_pidfile_acquire
	#define pidfile_write_release udhcp_pidfile_write_release
85	/* from options.h */	/* from options.h */
86	#define get_option udhcp_get_option	#define get_option udhcp_get_option
87	#define end_option udhcp_end_option	#define end_option udhcp_end_option
88	#define add_option_string udhcp_add_option_string	#define add_option_string udhcp_add_option_string
89	#define add_simple_option udhcp_add_simple_option	#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(char *interface, int *ifindex, uint32_t *addr, uint8_t *arp);
	int listen_socket(uint32_t ip, int port, 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);
90
91	#if ENABLE_FEATURE_UDHCP_DEBUG	void udhcp_sp_setup(void) FAST_FUNC;
92	# define DEBUG(str, args...) bb_info_msg(str, ## args)	int udhcp_sp_fd_set(fd_set *rfds, int extra_fd) FAST_FUNC;
93		int udhcp_sp_read(const fd_set *rfds) FAST_FUNC;
94		int udhcp_read_interface(const char *interface, int *ifindex, uint32_t *addr, uint8_t *arp) FAST_FUNC;
95		int udhcp_raw_socket(int ifindex) FAST_FUNC;
96		int udhcp_listen_socket(/*uint32_t ip,*/ int port, const char *inf) FAST_FUNC;
97		/* Returns 1 if no reply received */
98		int arpping(uint32_t test_ip, uint32_t from_ip, uint8_t *from_mac, const char *interface) FAST_FUNC;
99
100		#if ENABLE_UDHCP_DEBUG
101		# define DEBUG(str, args...) bb_info_msg("### " str, ## args)
102	#else	#else
103	# define DEBUG(str, args...) do {;} while (0)	# define DEBUG(str, args...) do {;} while (0)
104	#endif	#endif
105
106		#if __GNUC_PREREQ(4,1)
107		# pragma GCC visibility pop
108		#endif
109
110	#endif	#endif

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