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

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    Revision 532 - (show annotations) (download)
    Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
    File MIME type: text/plain
    File size: 2733 byte(s) 
    -import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
    1 /* vi: set sw=4 ts=4: */
    2 /* common.h
    3 *
    4 * Russ Dill <Russ.Dill@asu.edu> September 2001
    5 * Rewritten by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003
    6 *
    7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
    8 */
    9
    10 #ifndef _COMMON_H
    11 #define _COMMON_H
    12
    13 #include "busybox.h"
    14
    15 #define DEFAULT_SCRIPT "/usr/share/udhcpc/default.script"
    16
    17 #define COMBINED_BINARY
    18
    19
    20 /*** packet.h ***/
    21
    22 #include <netinet/udp.h>
    23 #include <netinet/ip.h>
    24
    25 struct dhcpMessage {
    26 uint8_t op;
    27 uint8_t htype;
    28 uint8_t hlen;
    29 uint8_t hops;
    30 uint32_t xid;
    31 uint16_t secs;
    32 uint16_t flags;
    33 uint32_t ciaddr;
    34 uint32_t yiaddr;
    35 uint32_t siaddr;
    36 uint32_t giaddr;
    37 uint8_t chaddr[16];
    38 uint8_t sname[64];
    39 uint8_t file[128];
    40 uint32_t cookie;
    41 uint8_t options[308]; /* 312 - cookie */
    42 };
    43
    44 struct udp_dhcp_packet {
    45 struct iphdr ip;
    46 struct udphdr udp;
    47 struct dhcpMessage data;
    48 };
    49
    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);
    59
    60
    61 /**/
    62
    63 void udhcp_background(const char *pidfile);
    64 void udhcp_start_log_and_pid(const char *pidfile);
    65
    66 void udhcp_run_script(struct dhcpMessage *packet, const char *name);
    67
    68 // Still need to clean these up...
    69
    70 /* from pidfile.h */
    71 #define pidfile_acquire udhcp_pidfile_acquire
    72 #define pidfile_write_release udhcp_pidfile_write_release
    73 /* from options.h */
    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
    79 /* from socket.h */
    80 #define listen_socket udhcp_listen_socket
    81 #define read_interface udhcp_read_interface
    82 /* from dhcpc.h */
    83 #define client_config udhcp_client_config
    84 /* from dhcpd.h */
    85 #define server_config udhcp_server_config
    86
    87 long uptime(void);
    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);
    97
    98 #if ENABLE_FEATURE_UDHCP_DEBUG
    99 # define DEBUG(str, args...) bb_info_msg(str, ## args)
    100 #else
    101 # define DEBUG(str, args...) do {;} while (0)
    102 #endif
    103
    104 #endif