diff options
Diffstat (limited to 'includes/dhcpd.h')
| -rw-r--r-- | includes/dhcpd.h | 524 |
1 files changed, 0 insertions, 524 deletions
diff --git a/includes/dhcpd.h b/includes/dhcpd.h deleted file mode 100644 index 9c586030..00000000 --- a/includes/dhcpd.h +++ /dev/null @@ -1,524 +0,0 @@ -/* dhcpd.h - - Definitions for dhcpd... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#include <sys/types.h> -#include <netinet/in.h> -#include <sys/socket.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <fcntl.h> -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <stdlib.h> -#include <sys/stat.h> -#include <ctype.h> -#include <time.h> - -#include "cdefs.h" -#include "osdep.h" -#include "dhcp.h" -#include "tree.h" -#include "hash.h" -#include "inet.h" - -/* A dhcp packet and the pointers to its option values. */ -struct packet { - struct dhcp_packet *raw; - int packet_length; - int packet_type; - int options_valid; - int client_port; - struct iaddr client_addr; - struct interface_info *interface; /* Interface on which packet - was received. */ - struct hardware *haddr; /* Physical link address - of local sender (maybe gateway). */ - struct shared_network *shared_network; - struct { - int len; - unsigned char *data; - } options [256]; -}; - -struct hardware { - u_int8_t htype; - u_int8_t hlen; - u_int8_t haddr [16]; -}; - -/* A dhcp host declaration structure. */ -struct host_decl { - struct host_decl *n_ipaddr; - char *name; - struct hardware interface; - char *filename; - char *server_name; - TIME default_lease_time; - TIME max_lease_time; - struct tree_cache *fixed_addr; - struct tree_cache *ciaddr; - struct tree_cache *yiaddr; - struct tree_cache *siaddr; - struct tree_cache *giaddr; - struct tree_cache *options [256]; -}; - -/* A dhcp lease declaration structure. */ -struct lease { - struct lease *next; - struct lease *prev; - struct iaddr ip_addr; - TIME starts, ends, timestamp; - TIME offered_expiry; - unsigned char *uid; - int uid_len; - struct host_decl *host; - struct subnet *subnet; - struct shared_network *shared_network; - struct hardware hardware_addr; - int state; - int xid; - int flags; -# define STATIC_LEASE 1 -# define BOOTP_LEASE 2 -# define DYNAMIC_BOOTP_OK 4 -# define PERSISTENT_FLAGS (DYNAMIC_BOOTP_OK) -# define EPHEMERAL_FLAGS (BOOTP_LEASE) -}; - -struct shared_network { - struct shared_network *next; - struct subnet *subnets; - struct interface_info *interface; - struct lease *leases; - struct lease *insertion_point; - struct lease *last_lease; - TIME default_lease_time; - TIME max_lease_time; - struct tree_cache *options [256]; - int dynamic_bootp; - char *name; -}; - -struct subnet { - struct subnet *next_subnet; - struct subnet *next_sibling; - struct shared_network *shared_network; - struct interface_info *interface; - struct iaddr interface_address; - struct iaddr net; - struct iaddr netmask; - TIME default_lease_time; - TIME max_lease_time; - struct tree_cache *options [256]; - int dynamic_bootp; -}; - -struct class { - char *name; - char *filename; - char *server_name; - TIME default_lease_time; - TIME max_lease_time; - struct tree_cache *options [256]; -}; - -/* Information about each network interface. */ - -struct interface_info { - struct interface_info *next; /* Next interface in list... */ - struct shared_network *shared_network; - /* Networks connected to this interface. */ - struct hardware hw_address; /* Its physical address. */ - char name [IFNAMSIZ]; /* Its name... */ - int rfdesc; /* Its read file descriptor. */ - int wfdesc; /* Its write file descriptor, if - different. */ - unsigned char *rbuf; /* Read buffer, if required. */ - size_t rbuf_max; /* Size of read buffer. */ - size_t rbuf_offset; /* Current offset into buffer. */ - size_t rbuf_len; /* Length of data in buffer. */ - - struct ifreq *tif; /* Temp. pointer to ifreq struct. */ -}; - -struct hardware_link { - struct hardware_link *next; - char name [IFNAMSIZ]; - struct hardware address; -}; - -/* Bitmask of dhcp option codes. */ -typedef unsigned char option_mask [16]; - -/* DHCP Option mask manipulation macros... */ -#define OPTION_ZERO(mask) (memset (mask, 0, 16)) -#define OPTION_SET(mask, bit) (mask [bit >> 8] |= (1 << (bit & 7))) -#define OPTION_CLR(mask, bit) (mask [bit >> 8] &= ~(1 << (bit & 7))) -#define OPTION_ISSET(mask, bit) (mask [bit >> 8] & (1 << (bit & 7))) -#define OPTION_ISCLR(mask, bit) (!OPTION_ISSET (mask, bit)) - -/* An option occupies its length plus two header bytes (code and - length) for every 255 bytes that must be stored. */ -#define OPTION_SPACE(x) ((x) + 2 * ((x) / 255 + 1)) - -/* Default path to dhcpd config file. */ -#ifdef DEBUG -#define _PATH_DHCPD_CONF "dhcpd.conf" -#define _PATH_DHCPD_DB "dhcpd.leases" -#else -#ifndef _PATH_DHCPD_CONF -#define _PATH_DHCPD_CONF "/etc/dhcpd.conf" -#endif - -#ifndef _PATH_DHCPD_DB -#define _PATH_DHCPD_DB "/etc/dhcpd.leases" -#endif - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/var/run/dhcpd.pid" -#endif -#endif - -#define MAX_TIME 0x7fffffff -#define MIN_TIME 0 - -/* External definitions... */ - -/* options.c */ - -void parse_options PROTO ((struct packet *)); -void parse_option_buffer PROTO ((struct packet *, unsigned char *, int)); -void cons_options PROTO ((struct packet *, struct packet *, - struct tree_cache **, int)); -/* void new_cons_options PROTO ((struct packet *, struct packet *, - struct tree_cache **, int)); */ -int store_options PROTO ((unsigned char *, int, struct tree_cache **, - unsigned char *, int, int, int)); -/* int store_option PROTO ((struct tree_cache **, unsigned char, - unsigned char *, int, int *)); */ -char *pretty_print_option PROTO ((unsigned char, unsigned char *, int)); - -/* errwarn.c */ -void error PROTO ((char *, ...)); -int warn PROTO ((char *, ...)); -int note PROTO ((char *, ...)); -int debug PROTO ((char *, ...)); -int parse_warn PROTO ((char *, ...)); - -/* dhcpd.c */ -extern TIME cur_time; -extern TIME default_lease_time; -extern TIME max_lease_time; -extern struct tree_cache *global_options [256]; - -extern struct iaddr server_identifier; -extern int server_identifier_matched; - -extern u_int16_t server_port; -extern int log_priority; - -#ifdef USE_FALLBACK -extern struct interface_info fallback_interface; -#endif - -int main PROTO ((int, char **, char **)); -void cleanup PROTO ((void)); - -/* conflex.c */ -extern int tline, tlpos; -extern char *tlname; -int next_token PROTO ((char **, FILE *)); -int peek_token PROTO ((char **, FILE *)); - -/* confpars.c */ -void readconf PROTO ((void)); -void read_leases PROTO ((void)); -void parse_statement PROTO ((FILE *)); -void skip_to_semi PROTO ((FILE *)); -struct host_decl *parse_host_statement PROTO ((FILE *, jrefproto)); -char *parse_host_name PROTO ((FILE *, jrefproto)); -void parse_class_statement PROTO ((FILE *, jrefproto, int)); -void parse_class_decl PROTO ((FILE *, jrefproto, struct class *)); -void parse_lease_time PROTO ((FILE *, jrefproto, TIME *)); -void parse_shared_net_statement PROTO ((FILE *, jrefproto)); -struct subnet *parse_subnet_statement PROTO ((FILE *, jrefproto, - struct shared_network *)); -void parse_subnet_decl PROTO ((FILE *, jrefproto, struct subnet *)); -void parse_host_decl PROTO ((FILE *, jrefproto, struct host_decl *)); -void parse_hardware_decl PROTO ((FILE *, jrefproto, struct host_decl *)); -struct hardware parse_hardware_addr PROTO ((FILE *, jrefproto)); -char *parse_filename_decl PROTO ((FILE *, jrefproto)); -char *parse_servername_decl PROTO ((FILE *, jrefproto)); -struct tree *parse_ip_addr_or_hostname PROTO ((FILE *, jrefproto, int)); -void parse_fixed_addr_decl PROTO ((FILE *, jrefproto, struct host_decl *)); -void parse_option_decl PROTO ((FILE *, jrefproto, struct tree_cache **)); -TIME parse_timestamp PROTO ((FILE *, jrefproto)); -TIME parse_date PROTO ((FILE *, jrefproto)); -struct lease *parse_lease_statement PROTO ((FILE *, jrefproto)); -void parse_address_range PROTO ((FILE *, jrefproto, struct subnet *)); -unsigned char *parse_numeric_aggregate PROTO ((FILE *, jrefproto, - unsigned char *, int *, - int, int, int)); -void convert_num PROTO ((unsigned char *, char *, int, int)); - -/* tree.c */ -pair cons PROTO ((caddr_t, pair)); -struct tree_cache *tree_cache PROTO ((struct tree *)); -struct tree *tree_host_lookup PROTO ((char *)); -struct dns_host_entry *enter_dns_host PROTO ((char *)); -struct tree *tree_const PROTO ((unsigned char *, int)); -struct tree *tree_concat PROTO ((struct tree *, struct tree *)); -struct tree *tree_limit PROTO ((struct tree *, int)); -int tree_evaluate PROTO ((struct tree_cache *)); - -/* dhcp.c */ -void dhcp PROTO ((struct packet *)); -void dhcpdiscover PROTO ((struct packet *)); -void dhcprequest PROTO ((struct packet *)); -void dhcprelease PROTO ((struct packet *)); -void dhcpdecline PROTO ((struct packet *)); -void dhcpinform PROTO ((struct packet *)); -void nak_lease PROTO ((struct packet *, struct iaddr *cip)); -void ack_lease PROTO ((struct packet *, struct lease *, unsigned char, TIME)); -struct lease *find_lease PROTO ((struct packet *, struct shared_network *)); -struct lease *mockup_lease PROTO ((struct packet *, - struct shared_network *, - struct host_decl *)); - -/* bootp.c */ -void bootp PROTO ((struct packet *)); - -/* memory.c */ -void enter_host PROTO ((struct host_decl *)); -struct host_decl *find_hosts_by_haddr PROTO ((int, unsigned char *, int)); -struct host_decl *find_hosts_by_uid PROTO ((unsigned char *, int)); -struct subnet *find_host_for_network PROTO ((struct host_decl **, - struct iaddr *, - struct shared_network *)); -void new_address_range PROTO ((struct iaddr, struct iaddr, - struct subnet *, int)); -extern struct subnet *find_grouped_subnet PROTO ((struct shared_network *, - struct iaddr)); -extern struct subnet *find_subnet PROTO ((struct iaddr)); -void enter_shared_network PROTO ((struct shared_network *)); -void enter_subnet PROTO ((struct subnet *)); -void enter_lease PROTO ((struct lease *)); -int supersede_lease PROTO ((struct lease *, struct lease *, int)); -void release_lease PROTO ((struct lease *)); -void abandon_lease PROTO ((struct lease *)); -struct lease *find_lease_by_uid PROTO ((unsigned char *, int)); -struct lease *find_lease_by_hw_addr PROTO ((unsigned char *, int)); -struct lease *find_lease_by_ip_addr PROTO ((struct iaddr)); -struct class *add_class PROTO ((int, char *)); -struct class *find_class PROTO ((int, char *, int)); -void write_leases PROTO ((void)); -void dump_subnets PROTO ((void)); - -/* alloc.c */ -VOIDPTR dmalloc PROTO ((int, char *)); -void dfree PROTO ((VOIDPTR, char *)); -struct packet *new_packet PROTO ((char *)); -struct dhcp_packet *new_dhcp_packet PROTO ((char *)); -struct tree *new_tree PROTO ((char *)); -struct tree_cache *new_tree_cache PROTO ((char *)); -struct hash_table *new_hash_table PROTO ((int, char *)); -struct hash_bucket *new_hash_bucket PROTO ((char *)); -struct lease *new_lease PROTO ((char *)); -struct lease *new_leases PROTO ((int, char *)); -struct subnet *new_subnet PROTO ((char *)); -struct class *new_class PROTO ((char *)); -struct shared_network *new_shared_network PROTO ((char *)); -void free_shared_network PROTO ((struct shared_network *, char *)); -void free_class PROTO ((struct class *, char *)); -void free_subnet PROTO ((struct subnet *, char *)); -void free_lease PROTO ((struct lease *, char *)); -void free_hash_bucket PROTO ((struct hash_bucket *, char *)); -void free_hash_table PROTO ((struct hash_table *, char *)); -void free_tree_cache PROTO ((struct tree_cache *, char *)); -void free_packet PROTO ((struct packet *, char *)); -void free_dhcp_packet PROTO ((struct dhcp_packet *, char *)); -void free_tree PROTO ((struct tree *, char *)); - -/* print.c */ -char *print_hw_addr PROTO ((int, int, unsigned char *)); -void print_lease PROTO ((struct lease *)); -void dump_raw PROTO ((unsigned char *, int)); -void dump_packet PROTO ((struct packet *)); -void hash_dump PROTO ((struct hash_table *)); - -/* socket.c */ -#if defined (USE_SOCKET_SEND) || defined (USE_SOCKET_RECEIVE) \ - || defined (USE_SOCKET_FALLBACK) -int if_register_socket PROTO ((struct interface_info *, struct ifreq *)); -#endif - -#ifdef USE_SOCKET_FALLBACK -void if_register_fallback PROTO ((struct interface_info *, struct ifreq *)); -size_t send_fallback PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif - -#ifdef USE_SOCKET_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif -#ifdef USE_SOCKET_RECEIVE -void if_register_receive PROTO ((struct interface_info *, struct ifreq *)); -size_t receive_packet PROTO ((struct interface_info *, - unsigned char *, size_t, - struct sockaddr_in *, struct hardware *)); -#endif - -/* bpf.c */ -#if defined (USE_BPF_SEND) || defined (USE_BPF_RECEIVE) -int if_register_bpf PROTO ( (struct interface_info *, struct ifreq *)); -#endif -#ifdef USE_BPF_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif -#ifdef USE_BPF_RECEIVE -void if_register_receive PROTO ((struct interface_info *, struct ifreq *)); -size_t receive_packet PROTO ((struct interface_info *, - unsigned char *, size_t, - struct sockaddr_in *, struct hardware *)); -#endif - -/* nit.c */ -#ifdef USE_NIT_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif -#ifdef USE_NIT_RECEIVE -void if_register_receive PROTO ((struct interface_info *, struct ifreq *)); -size_t receive_packet PROTO ((struct interface_info *, - unsigned char *, size_t, - struct sockaddr_in *, struct hardware *)); -#endif - -/* raw.c */ -#ifdef USE_RAW_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif - -/* dispatch.c */ -struct interface_info *interfaces; -void discover_interfaces PROTO ((void)); -void dispatch PROTO ((void)); -void do_packet PROTO ((struct interface_info *, - unsigned char *, int, - unsigned short, struct iaddr, struct hardware *)); -int locate_network PROTO ((struct packet *)); - -/* hash.c */ -struct hash_table *new_hash PROTO ((void)); -void add_hash PROTO ((struct hash_table *, char *, int, unsigned char *)); -void delete_hash_entry PROTO ((struct hash_table *, char *, int)); -unsigned char *hash_lookup PROTO ((struct hash_table *, char *, int)); - -/* tables.c */ -extern struct option dhcp_options [256]; -extern unsigned char dhcp_option_default_priority_list []; -extern int sizeof_dhcp_option_default_priority_list; -extern char *hardware_types [256]; -extern struct hash_table universe_hash; -extern struct universe dhcp_universe; -void initialize_universes PROTO ((void)); - -/* convert.c */ -u_int32_t getULong PROTO ((unsigned char *)); -int32_t getLong PROTO ((unsigned char *)); -u_int16_t getUShort PROTO ((unsigned char *)); -int16_t getShort PROTO ((unsigned char *)); -void putULong PROTO ((unsigned char *, u_int32_t)); -void putLong PROTO ((unsigned char *, int32_t)); -void putUShort PROTO ((unsigned char *, u_int16_t)); -void putShort PROTO ((unsigned char *, int16_t)); - -/* inet.c */ -struct iaddr subnet_number PROTO ((struct iaddr, struct iaddr)); -struct iaddr ip_addr PROTO ((struct iaddr, struct iaddr, u_int32_t)); -u_int32_t host_addr PROTO ((struct iaddr, struct iaddr)); -int addr_eq PROTO ((struct iaddr, struct iaddr)); -char *piaddr PROTO ((struct iaddr)); - -/* dhclient.c */ -void dhcpoffer PROTO ((struct packet *)); -void dhcpack PROTO ((struct packet *)); -void dhcpnak PROTO ((struct packet *)); -void send_discover PROTO ((struct interface_info *)); -void send_request PROTO ((struct packet *)); - -/* db.c */ -int write_lease PROTO ((struct lease *)); -int commit_leases PROTO ((void)); -void db_startup PROTO ((void)); -void new_lease_file PROTO ((void)); - -/* packet.c */ -void assemble_hw_header PROTO ((struct interface_info *, unsigned char *, - int *, struct hardware *)); -void assemble_udp_ip_header PROTO ((struct interface_info *, unsigned char *, - int *, u_int32_t, u_int32_t, u_int16_t, - unsigned char *, int)); -size_t decode_hw_header PROTO ((struct interface_info *, unsigned char *, - int, struct hardware *)); -size_t decode_udp_ip_header PROTO ((struct interface_info *, unsigned char *, - int, struct sockaddr_in *, - unsigned char *, int)); |