From d1f2ab0741d35d305eaf75bb056ded3d6280e1aa Mon Sep 17 00:00:00 2001 From: Theo de Raadt Date: Sun, 18 Jan 2004 01:26:21 +0000 Subject: this is where dhclient will start surgery --- sbin/dhclient/dhcpd.h | 1053 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1053 insertions(+) create mode 100644 sbin/dhclient/dhcpd.h (limited to 'sbin/dhclient/dhcpd.h') diff --git a/sbin/dhclient/dhcpd.h b/sbin/dhclient/dhcpd.h new file mode 100644 index 00000000000..9936965615b --- /dev/null +++ b/sbin/dhclient/dhcpd.h @@ -0,0 +1,1053 @@ +/* dhcpd.h + + Definitions for dhcpd... */ + +/* + * Copyright (c) 1995, 1996, 1997, 1998, 1999 + * 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 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''. + */ + +#ifndef __CYGWIN32__ +#include +#include +#include +#include +#include +#include +#else +#define fd_set cygwin_fd_set +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cdefs.h" +#include "osdep.h" +#include "dhcp.h" +#include "tree.h" +#include "hash.h" +#include "inet.h" +#include "sysconf.h" + +struct option_data { + int len; + u_int8_t *data; +}; + +struct string_list { + struct string_list *next; + char *string; +}; + +/* A name server, from /etc/resolv.conf. */ +struct name_server { + struct name_server *next; + struct sockaddr_in addr; + TIME rcdate; +}; + +/* A domain search list element. */ +struct domain_search_list { + struct domain_search_list *next; + char *domain; + TIME rcdate; +}; + +/* 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 option_data options [256]; + int got_requested_address; /* True if client sent the + dhcp-requested-address option. */ +}; + +struct hardware { + u_int8_t htype; + u_int8_t hlen; + u_int8_t haddr [16]; +}; + +/* A dhcp lease declaration structure. */ +struct lease { + struct lease *next; + struct lease *prev; + struct lease *n_uid, *n_hw; + struct lease *waitq_next; + + struct iaddr ip_addr; + TIME starts, ends, timestamp; + unsigned char *uid; + int uid_len; + int uid_max; + unsigned char uid_buf [32]; + char *hostname; + char *client_hostname; + struct host_decl *host; + struct subnet *subnet; + struct shared_network *shared_network; + struct hardware hardware_addr; + + 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) +# define MS_NULL_TERMINATION 8 +# define ABANDONED_LEASE 16 + + struct lease_state *state; + u_int8_t releasing; +}; + +struct lease_state { + struct lease_state *next; + + struct interface_info *ip; + + TIME offered_expiry; + + struct tree_cache *options [256]; + u_int32_t expiry, renewal, rebind; + char filename [DHCP_FILE_LEN]; + char *server_name; + + struct iaddr from; + + int max_message_size; + u_int8_t *prl; + int prl_len; + int got_requested_address; /* True if client sent the + dhcp-requested-address option. */ + int got_server_identifier; /* True if client sent the + dhcp-server-identifier option. */ + struct shared_network *shared_network; /* Shared network of interface + on which request arrived. */ + + u_int32_t xid; + u_int16_t secs; + u_int16_t bootp_flags; + struct in_addr ciaddr; + struct in_addr giaddr; + u_int8_t hops; + u_int8_t offer; +}; + +#define ROOT_GROUP 0 +#define HOST_DECL 1 +#define SHARED_NET_DECL 2 +#define SUBNET_DECL 3 +#define CLASS_DECL 4 +#define GROUP_DECL 5 + +/* Possible modes in which discover_interfaces can run. */ + +#define DISCOVER_RUNNING 0 +#define DISCOVER_SERVER 1 +#define DISCOVER_UNCONFIGURED 2 +#define DISCOVER_RELAY 3 +#define DISCOVER_REQUESTED 4 + +/* Group of declarations that share common parameters. */ +struct group { + struct group *next; + + struct subnet *subnet; + struct shared_network *shared_network; + + TIME default_lease_time; + TIME max_lease_time; + TIME bootp_lease_cutoff; + TIME bootp_lease_length; + + char *filename; + char *server_name; + struct iaddr next_server; + + int boot_unknown_clients; + int dynamic_bootp; + int allow_bootp; + int allow_booting; + int one_lease_per_client; + int get_lease_hostnames; + int use_host_decl_names; + int use_lease_addr_for_default_route; + int authoritative; + int always_reply_rfc1048; + + struct tree_cache *options [256]; +}; + +/* A dhcp host declaration structure. */ +struct host_decl { + struct host_decl *n_ipaddr; + char *name; + struct hardware interface; + struct tree_cache *fixed_addr; + struct group *group; +}; + +struct shared_network { + struct shared_network *next; + char *name; + struct subnet *subnets; + struct interface_info *interface; + struct lease *leases; + struct lease *insertion_point; + struct lease *last_lease; + + struct group *group; +}; + +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; + + struct group *group; +}; + +struct class { + char *name; + + struct group *group; +}; + +/* DHCP client lease structure... */ +struct client_lease { + struct client_lease *next; /* Next lease in list. */ + TIME expiry, renewal, rebind; /* Lease timeouts. */ + struct iaddr address; /* Address being leased. */ + char *server_name; /* Name of boot server. */ + char *filename; /* Name of file we're supposed to boot. */ + struct string_list *medium; /* Network medium. */ + + unsigned int is_static : 1; /* If set, lease is from config file. */ + unsigned int is_bootp: 1; /* If set, lease was aquired with BOOTP. */ + + struct option_data options [256]; /* Options supplied with lease. */ +}; + +/* Possible states in which the client can be. */ +enum dhcp_state { + S_REBOOTING, + S_INIT, + S_SELECTING, + S_REQUESTING, + S_BOUND, + S_RENEWING, + S_REBINDING +}; + +/* Configuration information from the config file... */ +struct client_config { + struct option_data defaults [256]; /* Default values for options. */ + enum { + ACTION_DEFAULT, /* Use server value if present, + otherwise default. */ + ACTION_SUPERSEDE, /* Always use default. */ + ACTION_PREPEND, /* Prepend default to server. */ + ACTION_APPEND /* Append default to server. */ + } default_actions [256]; + + struct option_data send_options [256]; /* Send these to server. */ + u_int8_t required_options [256]; /* Options server must supply. */ + u_int8_t requested_options [256]; /* Options to request from server. */ + int requested_option_count; /* Number of requested options. */ + TIME timeout; /* Start to panic if we don't get a + lease in this time period when + SELECTING. */ + TIME initial_interval; /* All exponential backoff intervals + start here. */ + TIME retry_interval; /* If the protocol failed to produce + an address before the timeout, + try the protocol again after this + many seconds. */ + TIME select_interval; /* Wait this many seconds from the + first DHCPDISCOVER before + picking an offered lease. */ + TIME reboot_timeout; /* When in INIT-REBOOT, wait this + long before giving up and going + to INIT. */ + TIME backoff_cutoff; /* When doing exponential backoff, + never back off to an interval + longer than this amount. */ + struct string_list *media; /* Possible network media values. */ + char *script_name; /* Name of config script. */ + enum { IGNORE, ACCEPT, PREFER } bootp_policy; + /* Ignore, accept or prefer BOOTP + responses. */ + struct string_list *medium; /* Current network medium. */ + + struct iaddrlist *reject_list; /* Servers to reject. */ +}; + +/* Per-interface state used in the dhcp client... */ +struct client_state { + struct client_lease *active; /* Currently active lease. */ + struct client_lease *new; /* New lease. */ + struct client_lease *offered_leases; /* Leases offered to us. */ + struct client_lease *leases; /* Leases we currently hold. */ + struct client_lease *alias; /* Alias lease. */ + + enum dhcp_state state; /* Current state for this interface. */ + struct iaddr destination; /* Where to send packet. */ + u_int32_t xid; /* Transaction ID. */ + u_int16_t secs; /* secs value from DHCPDISCOVER. */ + TIME first_sending; /* When was first copy sent? */ + TIME interval; /* What's the current resend interval? */ + struct string_list *medium; /* Last media type tried. */ + + struct dhcp_packet packet; /* Outgoing DHCP packet. */ + int packet_length; /* Actual length of generated packet. */ + + struct iaddr requested_address; /* Address we would like to get. */ + + struct client_config *config; /* Information from config file. */ + + char **scriptEnv; /* Client script env */ + int scriptEnvsize; /* size of the env table */ + + struct string_list *env; /* Client script environment. */ + int envc; /* Number of entries in environment. */ +}; + +/* 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. */ + struct in_addr primary_address; /* Primary interface 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 *ifp; /* Pointer to ifreq struct. */ + u_int32_t flags; /* Control flags... */ +#define INTERFACE_REQUESTED 1 +#define INTERFACE_AUTOMATIC 2 + + /* Only used by DHCP client code. */ + struct client_state *client; + int noifmedia; + int errors; + int dead; + u_int16_t index; +}; + +struct hardware_link { + struct hardware_link *next; + char name [IFNAMSIZ]; + struct hardware address; +}; + +struct timeout { + struct timeout *next; + TIME when; + void (*func) PROTO ((void *)); + void *what; +}; + +struct protocol { + struct protocol *next; + int fd; + void (*handler) PROTO ((struct protocol *)); + void *local; +}; + +/* 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 +#undef _PATH_DHCPD_CONF +#define _PATH_DHCPD_CONF "dhcpd.conf" +#undef _PATH_DHCPD_DB +#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 + +#ifndef _PATH_DHCLIENT_CONF +#define _PATH_DHCLIENT_CONF "/etc/dhclient.conf" +#endif + +#ifndef _PATH_DHCLIENT_PID +#define _PATH_DHCLIENT_PID "/var/run/dhclient.pid" +#endif + +#ifndef _PATH_DHCLIENT_DB +#define _PATH_DHCLIENT_DB "/etc/dhclient.leases" +#endif + +#ifndef _PATH_RESOLV_CONF +#define _PATH_RESOLV_CONF "/etc/resolv.conf" +#endif + +#ifndef _PATH_DHCRELAY_PID +#define _PATH_DHCRELAY_PID "/var/run/dhcrelay.pid" +#endif + +#ifndef DHCPD_LOG_FACILITY +#define DHCPD_LOG_FACILITY LOG_DAEMON +#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)); +int cons_options PROTO ((struct packet *, struct dhcp_packet *, int, + struct tree_cache **, int, int, int, + u_int8_t *, int)); +int store_options PROTO ((unsigned char *, int, struct tree_cache **, + unsigned char *, int, int, int, int)); +char *pretty_print_option PROTO ((unsigned int, + unsigned char *, int, int, int)); +void do_packet PROTO ((struct interface_info *, + struct dhcp_packet *, int, + unsigned int, struct iaddr, struct hardware *)); + +/* errwarn.c */ +extern int warnings_occurred; +void error (char *, ...) __attribute__ ((__format__ (__printf__, 1, 2))); +int warn (char *, ...) __attribute__ ((__format__ (__printf__, 1, 2))); +int note (char *, ...) __attribute__ ((__format__ (__printf__, 1, 2))); +int debug (char *, ...) __attribute__ ((__format__ (__printf__, 1, 2))); +int parse_warn (char *, ...) __attribute__ ((__format__ (__printf__, 1, 2))); + +/* dhcpd.c */ +extern TIME cur_time; +extern struct group root_group; + +extern u_int16_t local_port; +extern u_int16_t remote_port; +extern int log_priority; +extern int log_perror; + +extern char *path_dhcpd_conf; +extern char *path_dhcpd_db; +extern char *path_dhcpd_pid; + +int main PROTO ((int, char **)); +void cleanup PROTO ((void)); +void lease_pinged PROTO ((struct iaddr, u_int8_t *, int)); +void lease_ping_timeout PROTO ((void *)); + +/* conflex.c */ +extern int lexline, lexchar; +extern char *token_line, *tlname; +extern char comments [4096]; +extern int comment_index; +extern int eol_token; +void new_parse PROTO ((char *)); +int next_token PROTO ((char **, FILE *)); +int peek_token PROTO ((char **, FILE *)); + +/* confpars.c */ +int readconf PROTO ((void)); +void read_leases PROTO ((void)); +int parse_statement PROTO ((FILE *, + struct group *, int, struct host_decl *, int)); +void parse_allow_deny PROTO ((FILE *, struct group *, int)); +void skip_to_semi PROTO ((FILE *)); +int parse_boolean PROTO ((FILE *)); +int parse_semi PROTO ((FILE *)); +int parse_lbrace PROTO ((FILE *)); +void parse_host_declaration PROTO ((FILE *, struct group *)); +char *parse_host_name PROTO ((FILE *)); +void parse_class_declaration PROTO ((FILE *, struct group *, int)); +void parse_lease_time PROTO ((FILE *, TIME *)); +void parse_shared_net_declaration PROTO ((FILE *, struct group *)); +void parse_subnet_declaration PROTO ((FILE *, struct shared_network *)); +void parse_group_declaration PROTO ((FILE *, struct group *)); +void parse_hardware_param PROTO ((FILE *, struct hardware *)); +char *parse_string PROTO ((FILE *)); +struct tree *parse_ip_addr_or_hostname PROTO ((FILE *, int)); +struct tree_cache *parse_fixed_addr_param PROTO ((FILE *)); +void parse_option_param PROTO ((FILE *, struct group *)); +TIME parse_timestamp PROTO ((FILE *)); +struct lease *parse_lease_declaration PROTO ((FILE *)); +void parse_address_range PROTO ((FILE *, struct subnet *)); +TIME parse_date PROTO ((FILE *)); +unsigned char *parse_numeric_aggregate PROTO ((FILE *, + 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 */ +extern int outstanding_pings; + +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 int, TIME)); +void dhcp_reply PROTO ((struct lease *)); +struct lease *find_lease PROTO ((struct packet *, + struct shared_network *, int *)); +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 *)); +int subnet_inner_than PROTO ((struct subnet *, struct subnet *, int)); +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 *, char *)); +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)); +void uid_hash_add PROTO ((struct lease *)); +void uid_hash_delete PROTO ((struct lease *)); +void hw_hash_add PROTO ((struct lease *)); +void hw_hash_delete PROTO ((struct lease *)); +struct class *add_class PROTO ((int, char *)); +struct class *find_class PROTO ((int, unsigned char *, int)); +struct group *clone_group PROTO ((struct group *, char *)); +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 *)); +struct group *new_group PROTO ((char *)); +struct protocol *new_protocol PROTO ((char *)); +struct lease_state *new_lease_state PROTO ((char *)); +struct domain_search_list *new_domain_search_list PROTO ((char *)); +struct name_server *new_name_server PROTO ((char *)); +struct string_list *new_string_list PROTO ((size_t size, char * name)); +void free_name_server PROTO ((struct name_server *, char *)); +void free_domain_search_list PROTO ((struct domain_search_list *, char *)); +void free_lease_state PROTO ((struct lease_state *, char *)); +void free_protocol PROTO ((struct protocol *, char *)); +void free_group PROTO ((struct group *, 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 *)); +void free_string_list PROTO ((struct string_list *, 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 *)); +#endif + +#if defined (USE_SOCKET_FALLBACK) && !defined (USE_SOCKET_SEND) +void if_reinitialize_fallback PROTO ((struct interface_info *)); +void if_register_fallback PROTO ((struct interface_info *)); +ssize_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_reinitialize_send PROTO ((struct interface_info *)); +void if_register_send PROTO ((struct interface_info *)); +ssize_t send_packet PROTO ((struct interface_info *, + struct packet *, struct dhcp_packet *, size_t, + struct in_addr, + struct sockaddr_in *, struct hardware *)); +#endif +#if defined (USE_SOCKET_FALLBACK) +void fallback_discard PROTO ((struct protocol *)); +#endif +#ifdef USE_SOCKET_RECEIVE +void if_reinitialize_receive PROTO ((struct interface_info *)); +void if_register_receive PROTO ((struct interface_info *)); +ssize_t receive_packet PROTO ((struct interface_info *, + unsigned char *, size_t, + struct sockaddr_in *, struct hardware *)); +#endif +#if defined (USE_SOCKET_SEND) +int can_unicast_without_arp PROTO ((void)); +int can_receive_unicast_unconfigured PROTO ((struct interface_info *)); +void maybe_setup_fallback PROTO ((void)); +#endif + +/* bpf.c */ +#if defined (USE_BPF_SEND) || defined (USE_BPF_RECEIVE) +int if_register_bpf PROTO ( (struct interface_info *)); +#endif +#ifdef USE_BPF_SEND +void if_reinitialize_send PROTO ((struct interface_info *)); +void if_register_send PROTO ((struct interface_info *)); +ssize_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_reinitialize_receive PROTO ((struct interface_info *)); +void if_register_receive PROTO ((struct interface_info *)); +ssize_t receive_packet PROTO ((struct interface_info *, + unsigned char *, size_t, + struct sockaddr_in *, struct hardware *)); +#endif +#if defined (USE_BPF_SEND) +int can_unicast_without_arp PROTO ((void)); +int can_receive_unicast_unconfigured PROTO ((struct interface_info *)); +void maybe_setup_fallback PROTO ((void)); +#endif + +/* lpf.c */ +#if defined (USE_LPF_SEND) || defined (USE_LPF_RECEIVE) +int if_register_lpf PROTO ( (struct interface_info *)); +#endif +#ifdef USE_LPF_SEND +void if_reinitialize_send PROTO ((struct interface_info *)); +void if_register_send PROTO ((struct interface_info *)); +ssize_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_LPF_RECEIVE +void if_reinitialize_receive PROTO ((struct interface_info *)); +void if_register_receive PROTO ((struct interface_info *)); +ssize_t receive_packet PROTO ((struct interface_info *, + unsigned char *, size_t, + struct sockaddr_in *, struct hardware *)); +#endif +#if defined (USE_LPF_SEND) +int can_unicast_without_arp PROTO ((void)); +int can_receive_unicast_unconfigured PROTO ((struct interface_info *)); +void maybe_setup_fallback PROTO ((void)); +#endif + +/* nit.c */ +#if defined (USE_NIT_SEND) || defined (USE_NIT_RECEIVE) +int if_register_nit PROTO ( (struct interface_info *)); +#endif + +#ifdef USE_NIT_SEND +void if_reinitialize_send PROTO ((struct interface_info *)); +void if_register_send PROTO ((struct interface_info *)); +ssize_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_reinitialize_receive PROTO ((struct interface_info *)); +void if_register_receive PROTO ((struct interface_info *)); +ssize_t receive_packet PROTO ((struct interface_info *, + unsigned char *, size_t, + struct sockaddr_in *, struct hardware *)); +#endif +#if defined (USE_NIT_SEND) +int can_unicast_without_arp PROTO ((void)); +int can_receive_unicast_unconfigured PROTO ((struct interface_info *)); +void maybe_setup_fallback PROTO ((void)); +#endif + +#ifdef USE_DLPI_SEND +void if_reinitialize_send PROTO ((struct interface_info *)); +void if_register_send PROTO ((struct interface_info *)); +ssize_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_DLPI_RECEIVE +void if_reinitialize_receive PROTO ((struct interface_info *)); +void if_register_receive PROTO ((struct interface_info *)); +ssize_t receive_packet PROTO ((struct interface_info *, + unsigned char *, size_t, + struct sockaddr_in *, struct hardware *)); +#endif +#if defined (USE_DLPI_SEND) +int can_unicast_without_arp PROTO ((void)); +int can_receive_unicast_unconfigured PROTO ((struct interface_info *)); +void maybe_setup_fallback PROTO ((void)); +#endif + +/* raw.c */ +#ifdef USE_RAW_SEND +void if_reinitialize_send PROTO ((struct interface_info *)); +void if_register_send PROTO ((struct interface_info *)); +ssize_t send_packet PROTO ((struct interface_info *, + struct packet *, struct dhcp_packet *, size_t, + struct in_addr, + struct sockaddr_in *, struct hardware *)); +int can_unicast_without_arp PROTO ((void)); +int can_receive_unicast_unconfigured PROTO ((struct interface_info *)); +void maybe_setup_fallback PROTO ((void)); +#endif + +/* dispatch.c */ +extern struct interface_info *interfaces, + *dummy_interfaces, *fallback_interface; +extern struct protocol *protocols; +extern int quiet_interface_discovery; +extern void (*bootp_packet_handler) PROTO ((struct interface_info *, + struct dhcp_packet *, int, + unsigned int, + struct iaddr, struct hardware *)); +extern struct timeout *timeouts; +void discover_interfaces PROTO ((int)); +struct interface_info *setup_fallback PROTO ((void)); +void reinitialize_interfaces PROTO ((void)); +void dispatch PROTO ((void)); +int locate_network PROTO ((struct packet *)); +void got_one PROTO ((struct protocol *)); +void add_timeout PROTO ((TIME, void (*) PROTO ((void *)), void *)); +void cancel_timeout PROTO ((void (*) PROTO ((void *)), void *)); +void add_protocol PROTO ((char *, int, + void (*) PROTO ((struct protocol *)), void *)); + +void remove_protocol PROTO ((struct protocol *)); + +/* hash.c */ +struct hash_table *new_hash PROTO ((void)); +void add_hash PROTO ((struct hash_table *, unsigned char *, + int, unsigned char *)); +void delete_hash_entry PROTO ((struct hash_table *, unsigned char *, int)); +unsigned char *hash_lookup PROTO ((struct hash_table *, unsigned 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 *, unsigned int)); +void putShort PROTO ((unsigned char *, int)); + +/* inet.c */ +struct iaddr subnet_number PROTO ((struct iaddr, struct iaddr)); +struct iaddr ip_addr PROTO ((struct iaddr, struct iaddr, u_int32_t)); +struct iaddr broadcast_addr PROTO ((struct iaddr, struct iaddr)); +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 */ +extern char *path_dhclient_conf; +extern char *path_dhclient_db; +extern char *path_dhclient_pid; +extern int interfaces_requested; + +extern struct client_config top_level_config; + +void dhcpoffer PROTO ((struct packet *)); +void dhcpack PROTO ((struct packet *)); +void dhcpnak PROTO ((struct packet *)); + +void send_discover PROTO ((void *)); +void send_request PROTO ((void *)); +void send_release PROTO ((void *)); +void send_decline PROTO ((void *)); + +void state_reboot PROTO ((void *)); +void state_init PROTO ((void *)); +void state_selecting PROTO ((void *)); +void state_requesting PROTO ((void *)); +void state_bound PROTO ((void *)); +void state_panic PROTO ((void *)); + +void bind_lease PROTO ((struct interface_info *)); + +void make_discover PROTO ((struct interface_info *, struct client_lease *)); +void make_request PROTO ((struct interface_info *, struct client_lease *)); +void make_decline PROTO ((struct interface_info *, struct client_lease *)); +void make_release PROTO ((struct interface_info *, struct client_lease *)); + +void free_client_lease PROTO ((struct client_lease *)); +void rewrite_client_leases PROTO ((void)); +void write_client_lease PROTO ((struct interface_info *, + struct client_lease *, int)); + +void script_init PROTO ((struct interface_info *, char *, + struct string_list *)); +void script_write_params PROTO ((struct interface_info *, + char *, struct client_lease *)); +int script_go PROTO ((struct interface_info *)); +void client_envadd PROTO ((struct client_state *, + const char *, const char *, const char *, ...)); +void script_set_env (struct client_state *, const char *, const char *, + const char *); +void script_flush_env(struct client_state *); +int dhcp_option_ev_name (char *, size_t, struct option *); + +struct client_lease *packet_to_lease PROTO ((struct packet *)); +void go_daemon PROTO ((void)); +void write_client_pid_file PROTO ((void)); +void status_message PROTO ((struct sysconf_header *, void *)); +void client_location_changed PROTO ((void)); + +/* 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 */ +u_int32_t checksum PROTO ((unsigned char *, unsigned, u_int32_t)); +u_int32_t wrapsum PROTO ((u_int32_t)); +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, unsigned int, + unsigned char *, int)); +ssize_t decode_hw_header PROTO ((struct interface_info *, unsigned char *, + int, struct hardware *)); +ssize_t decode_udp_ip_header PROTO ((struct interface_info *, unsigned char *, + int, struct sockaddr_in *, + unsigned char *, int)); + +/* ethernet.c */ +void assemble_ethernet_header PROTO ((struct interface_info *, unsigned char *, + int *, struct hardware *)); +ssize_t decode_ethernet_header PROTO ((struct interface_info *, + unsigned char *, + int, struct hardware *)); + +/* tr.c */ +void assemble_tr_header PROTO ((struct interface_info *, unsigned char *, + int *, struct hardware *)); +ssize_t decode_tr_header PROTO ((struct interface_info *, + unsigned char *, + int, struct hardware *)); + +/* dhxpxlt.c */ +void convert_statement PROTO ((FILE *)); +void convert_host_statement PROTO ((FILE *, jrefproto)); +void convert_host_name PROTO ((FILE *, jrefproto)); +void convert_class_statement PROTO ((FILE *, jrefproto, int)); +void convert_class_decl PROTO ((FILE *, jrefproto)); +void convert_lease_time PROTO ((FILE *, jrefproto, char *)); +void convert_shared_net_statement PROTO ((FILE *, jrefproto)); +void convert_subnet_statement PROTO ((FILE *, jrefproto)); +void convert_subnet_decl PROTO ((FILE *, jrefproto)); +void convert_host_decl PROTO ((FILE *, jrefproto)); +void convert_hardware_decl PROTO ((FILE *, jrefproto)); +void convert_hardware_addr PROTO ((FILE *, jrefproto)); +void convert_filename_decl PROTO ((FILE *, jrefproto)); +void convert_servername_decl PROTO ((FILE *, jrefproto)); +void convert_ip_addr_or_hostname PROTO ((FILE *, jrefproto, int)); +void convert_fixed_addr_decl PROTO ((FILE *, jrefproto)); +void convert_option_decl PROTO ((FILE *, jrefproto)); +void convert_timestamp PROTO ((FILE *, jrefproto)); +void convert_lease_statement PROTO ((FILE *, jrefproto)); +void convert_address_range PROTO ((FILE *, jrefproto)); +void convert_date PROTO ((FILE *, jrefproto, char *)); +void convert_numeric_aggregate PROTO ((FILE *, jrefproto, int, int, int, int)); +void indent PROTO ((int)); + +/* route.c */ +void add_route_direct PROTO ((struct interface_info *, struct in_addr)); +void add_route_net PROTO ((struct interface_info *, struct in_addr, + struct in_addr)); +void add_route_default_gateway PROTO ((struct interface_info *, + struct in_addr)); +void remove_routes PROTO ((struct in_addr)); +void remove_if_route PROTO ((struct interface_info *, struct in_addr)); +void remove_all_if_routes PROTO ((struct interface_info *)); +void set_netmask PROTO ((struct interface_info *, struct in_addr)); +void set_broadcast_addr PROTO ((struct interface_info *, struct in_addr)); +void set_ip_address PROTO ((struct interface_info *, struct in_addr)); + +/* clparse.c */ +int read_client_conf PROTO ((void)); +void read_client_leases PROTO ((void)); +void parse_client_statement PROTO ((FILE *, struct interface_info *, + struct client_config *)); +int parse_X PROTO ((FILE *, u_int8_t *, int)); +int parse_option_list PROTO ((FILE *, u_int8_t *)); +void parse_interface_declaration PROTO ((FILE *, struct client_config *)); +struct interface_info *interface_or_dummy PROTO ((char *)); +void make_client_state PROTO ((struct interface_info *)); +void make_client_config PROTO ((struct interface_info *, + struct client_config *)); +void parse_client_lease_statement PROTO ((FILE *, int)); +void parse_client_lease_declaration PROTO ((FILE *, struct client_lease *, + struct interface_info **)); +struct option *parse_option_decl PROTO ((FILE *, struct option_data *)); +void parse_string_list PROTO ((FILE *, struct string_list **, int)); +int parse_ip_addr PROTO ((FILE *, struct iaddr *)); +void parse_reject_statement PROTO ((FILE *, struct client_config *)); + +/* dhcrelay.c */ +void relay PROTO ((struct interface_info *, struct dhcp_packet *, int, + unsigned int, struct iaddr, struct hardware *)); + +/* icmp.c */ +void icmp_startup PROTO ((int, void (*) PROTO ((struct iaddr, + u_int8_t *, int)))); +int icmp_echorequest PROTO ((struct iaddr *)); +void icmp_echoreply PROTO ((struct protocol *)); + +/* dns.c */ +void dns_startup PROTO ((void)); +int ns_inaddr_lookup PROTO ((u_int16_t, struct iaddr)); +void dns_packet PROTO ((struct protocol *)); + +/* resolv.c */ +extern char path_resolv_conf []; +struct name_server *name_servers; +struct domain_search_list *domains; + +void read_resolv_conf PROTO ((TIME)); +struct sockaddr_in *pick_name_server PROTO ((void)); + +/* inet_addr.c */ +#ifdef NEED_INET_ATON +int inet_aton PROTO ((const char *, struct in_addr *)); +#endif + +/* sysconf.c */ +void sysconf_startup PROTO ((void (*) (struct sysconf_header *, void *))); +void sysconf_restart PROTO ((void *)); +void sysconf_message PROTO ((struct protocol *proto)); -- cgit v1.2.3