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

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	revision 983 by niro, Fri Apr 24 18:33:46 2009 UTC	revision 984 by niro, Sun May 30 11:32:42 2010 UTC
#	Line 6	Line 6
6	*	*
7	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8	*/	*/
9		#ifndef UDHCP_COMMON_H
10	#ifndef _COMMON_H	#define UDHCP_COMMON_H 1
	#define _COMMON_H
11
12	#include "libbb.h"	#include "libbb.h"
13	#include <netinet/udp.h>	#include <netinet/udp.h>
14	#include <netinet/ip.h>	#include <netinet/ip.h>
15
16	#if __GNUC_PREREQ(4,1)	PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
	# pragma GCC visibility push(hidden)
	#endif
17
18	#define DEFAULT_SCRIPT   CONFIG_UDHCPC_DEFAULT_SCRIPT	#define DEFAULT_SCRIPT   CONFIG_UDHCPC_DEFAULT_SCRIPT
19
#	Line 26  extern const uint8_t MAC_BCAST_ADDR[6];	Line 23  extern const uint8_t MAC_BCAST_ADDR[6];
23
24	#define DHCP_OPTIONS_BUFSIZE  308	#define DHCP_OPTIONS_BUFSIZE  308
25
26	struct dhcpMessage {	//TODO: rename ciaddr/yiaddr/chaddr
27		struct dhcp_packet {
28	uint8_t op;      /* 1 = BOOTREQUEST, 2 = BOOTREPLY */	uint8_t op;      /* 1 = BOOTREQUEST, 2 = BOOTREPLY */
29	uint8_t htype;   /* hardware address type. 1 = 10mb ethernet */	uint8_t htype;   /* hardware address type. 1 = 10mb ethernet */
30	uint8_t hlen;    /* hardware address length */	uint8_t hlen;    /* hardware address length */
#	Line 37  struct dhcpMessage {	Line 35  struct dhcpMessage {
35	#define BROADCAST_FLAG 0x8000 /* "I need broadcast replies" */	#define BROADCAST_FLAG 0x8000 /* "I need broadcast replies" */
36	uint32_t ciaddr; /* client IP (if client is in BOUND, RENEW or REBINDING state) */	uint32_t ciaddr; /* client IP (if client is in BOUND, RENEW or REBINDING state) */
37	uint32_t yiaddr; /* 'your' (client) IP address */	uint32_t yiaddr; /* 'your' (client) IP address */
38	uint32_t siaddr; /* IP address of next server to use in bootstrap,	/* IP address of next server to use in bootstrap, returned in DHCPOFFER, DHCPACK by server */
39	* returned in DHCPOFFER, DHCPACK by server */	uint32_t siaddr_nip;
40	uint32_t giaddr; /* relay agent IP address */	uint32_t gateway_nip; /* relay agent IP address */
41	uint8_t chaddr[16];/* link-layer client hardware address (MAC) */	uint8_t chaddr[16];   /* link-layer client hardware address (MAC) */
42	uint8_t sname[64]; /* server host name (ASCIZ) */	uint8_t sname[64];    /* server host name (ASCIZ) */
43	uint8_t file[128]; /* boot file name (ASCIZ) */	uint8_t file[128];    /* boot file name (ASCIZ) */
44	uint32_t cookie;   /* fixed first four option bytes (99,130,83,99 dec) */	uint32_t cookie;      /* fixed first four option bytes (99,130,83,99 dec) */
45	uint8_t options[DHCP_OPTIONS_BUFSIZE + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS];	uint8_t options[DHCP_OPTIONS_BUFSIZE + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS];
46	} PACKED;	} PACKED;
47
48	struct udp_dhcp_packet {	struct ip_udp_dhcp_packet {
49	struct iphdr ip;	struct iphdr ip;
50	struct udphdr udp;	struct udphdr udp;
51	struct dhcpMessage data;	struct dhcp_packet data;
52	} PACKED;	} PACKED;
53
54	/* Let's see whether compiler understood us right */	/* Let's see whether compiler understood us right */
55	struct BUG_bad_sizeof_struct_udp_dhcp_packet {	struct BUG_bad_sizeof_struct_ip_udp_dhcp_packet {
56	char BUG_bad_sizeof_struct_udp_dhcp_packet	char BUG_bad_sizeof_struct_ip_udp_dhcp_packet
57	[(sizeof(struct udp_dhcp_packet) != 576 + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS) ? -1 : 1];	[(sizeof(struct ip_udp_dhcp_packet) != 576 + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS) ? -1 : 1];
58	};	};
59
60	uint16_t udhcp_checksum(void *addr, int count) FAST_FUNC;	uint16_t udhcp_checksum(void *addr, int count) FAST_FUNC;
61
62	void udhcp_init_header(struct dhcpMessage *packet, char type) FAST_FUNC;	void udhcp_init_header(struct dhcp_packet *packet, char type) FAST_FUNC;
63
64	/*int udhcp_recv_raw_packet(struct dhcpMessage *payload, int fd); - in dhcpc.h */	/*int udhcp_recv_raw_packet(struct dhcp_packet *dhcp_pkt, int fd); - in dhcpc.h */
65	int udhcp_recv_kernel_packet(struct dhcpMessage *packet, int fd) FAST_FUNC;	int udhcp_recv_kernel_packet(struct dhcp_packet *packet, int fd) FAST_FUNC;
66
67	int udhcp_send_raw_packet(struct dhcpMessage *payload,	int udhcp_send_raw_packet(struct dhcp_packet *dhcp_pkt,
68	uint32_t source_ip, int source_port,	uint32_t source_ip, int source_port,
69	uint32_t dest_ip, int dest_port, const uint8_t *dest_arp,	uint32_t dest_ip, int dest_port, const uint8_t *dest_arp,
70	int ifindex) FAST_FUNC;	int ifindex) FAST_FUNC;
71
72	int udhcp_send_kernel_packet(struct dhcpMessage *payload,	int udhcp_send_kernel_packet(struct dhcp_packet *dhcp_pkt,
73	uint32_t source_ip, int source_port,	uint32_t source_ip, int source_port,
74	uint32_t dest_ip, int dest_port) FAST_FUNC;	uint32_t dest_ip, int dest_port) FAST_FUNC;
75
76
77	/**/	/**/
78
79	void udhcp_run_script(struct dhcpMessage *packet, const char *name) FAST_FUNC;	void udhcp_run_script(struct dhcp_packet *packet, const char *name) FAST_FUNC;
80
81	// Still need to clean these up...	// Still need to clean these up...
82
#	Line 91  void udhcp_run_script(struct dhcpMessage	Line 89  void udhcp_run_script(struct dhcpMessage
89	void udhcp_sp_setup(void) FAST_FUNC;	void udhcp_sp_setup(void) FAST_FUNC;
90	int udhcp_sp_fd_set(fd_set *rfds, int extra_fd) FAST_FUNC;	int udhcp_sp_fd_set(fd_set *rfds, int extra_fd) FAST_FUNC;
91	int udhcp_sp_read(const fd_set *rfds) FAST_FUNC;	int udhcp_sp_read(const fd_set *rfds) FAST_FUNC;
92	int udhcp_read_interface(const char *interface, int *ifindex, uint32_t *addr, uint8_t *arp) FAST_FUNC;	int udhcp_read_interface(const char *interface, int *ifindex, uint32_t *nip, uint8_t *mac) FAST_FUNC;
93	int udhcp_raw_socket(int ifindex) FAST_FUNC;	int udhcp_raw_socket(int ifindex) FAST_FUNC;
94	int udhcp_listen_socket(/*uint32_t ip,*/ int port, const char *inf) FAST_FUNC;	int udhcp_listen_socket(/*uint32_t ip,*/ int port, const char *inf) FAST_FUNC;
95	/* Returns 1 if no reply received */	/* Returns 1 if no reply received */
96	int arpping(uint32_t test_ip, uint32_t from_ip, uint8_t *from_mac, const char *interface) FAST_FUNC;	int arpping(uint32_t test_nip,
97		const uint8_t *safe_mac,
98	#if ENABLE_UDHCP_DEBUG	uint32_t from_ip,
99	# define DEBUG(str, args...) bb_info_msg("### " str, ## args)	uint8_t *from_mac,
100		const char *interface) FAST_FUNC;
101
102		#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1
103		extern unsigned dhcp_verbose;
104		# define log1(...) do { if (dhcp_verbose >= 1) bb_info_msg(__VA_ARGS__); } while (0)
105		# if CONFIG_UDHCP_DEBUG >= 2
106		void udhcp_dump_packet(struct dhcp_packet *packet) FAST_FUNC;
107		#  define log2(...) do { if (dhcp_verbose >= 2) bb_info_msg(__VA_ARGS__); } while (0)
108		# else
109		#  define udhcp_dump_packet(...) ((void)0)
110		#  define log2(...) ((void)0)
111		# endif
112		# if CONFIG_UDHCP_DEBUG >= 3
113		#  define log3(...) do { if (dhcp_verbose >= 3) bb_info_msg(__VA_ARGS__); } while (0)
114		# else
115		#  define log3(...) ((void)0)
116		# endif
117	#else	#else
118	# define DEBUG(str, args...) do {;} while (0)	# define udhcp_dump_packet(...) ((void)0)
119		# define log1(...) ((void)0)
120		# define log2(...) ((void)0)
121		# define log3(...) ((void)0)
122	#endif	#endif
123
124	#if __GNUC_PREREQ(4,1)	POP_SAVED_FUNCTION_VISIBILITY
	# pragma GCC visibility pop
	#endif
125
126	#endif	#endif

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