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isdn4k-utils/ipppd/ipppd.h

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/*
* ipppd.h - PPP daemon global declarations.
*
* Copyright (c) 1989 Carnegie Mellon University.
* All rights reserved.
*
* 2000-07-25 Callback improvements by richard.kunze@web.de
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Carnegie Mellon University. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: ipppd.h,v 1.24 2004/02/12 10:50:21 keil Exp $
*/
/*
* TODO:
*/
#define ISDN4LINUX_PATCH
#ifndef __IPPPD_H__
#define __IPPPD_H__
#include <stdarg.h>
#include <sys/param.h> /* for MAXPATHLEN and BSD4_4, if defined */
#include <sys/types.h> /* for u_int32_t, if defined */
#include <sys/bitypes.h>
#if defined __GLIBC__ && __GLIBC__ >= 2
# include <net/ppp_defs.h>
# include <linux/isdn_ppp.h>
#else
# include <linux/ppp_defs.h>
# include <linux/isdn_ppp.h>
#endif
#include <stdio.h>
#include <net/if.h>
#if defined __GLIBC__ && __GLIBC__ >= 2
# include <utmp.h>
#endif
#if 0
#include <linux/version.h>
#if (LINUX_VERSION_CODE < ((0x020100)+88))
#define ISDN_PPP_COMP_MAX_OPTIONS 16
struct isdn_ppp_comp_data {
int num;
unsigned char options[ISDN_PPP_COMP_MAX_OPTIONS];
int optlen;
int flags;
};
#endif
#endif
#include "config.h"
#ifndef PPP_LINK_CCP
#define PPP_LINK_CCP 0x80fb
#endif
#ifndef IPPP_COMP_FLAG_XMIT
#define IPPP_COMP_FLAG_XMIT 0x1
#endif
#ifndef IPPP_COMP_FLAG_LINK
#define IPPP_COMP_FLAG_LINK 0x2
#endif
/* Old Linux Kernels don't have VERSION defined */
#ifndef IPPP_VERSION
#define IPPP_VERSION "2.2.0"
#else
#define NEW_VERS
#endif
#define NUM_PPP 64 /* 64 PPP interface supported (per process) */
struct wordlist {
struct wordlist *next;
char word[1];
};
#ifdef RADIUS
#define MAXUSERNAME 255
#define MAXSESSIONID 32
#define MAXCID 17
extern int useradius; /* Use RADIUS server for PAP authentication */
extern int useradacct; /* Use RADIUS server for accounting */
#endif
struct link_struct {
struct link_struct *bundle_next;
int fd; /* link file descriptor */
int peer_mru; /* link: peer_mru */
int logged_in;
int auth_pending;
struct wordlist *addresses;
int unit; /* link unit */
int master; /* 'master' link unit */
int lcp_unit;
int ipcp_unit;
int ccp_unit;
int ccp_l_unit;
int chap_unit;
int upap_unit;
int cbcp_unit;
int ipxcp_unit;
int phase;
int auth_up_script;
int kill_link;
int open_ccp_flag;
int ifunit;
int openfails;
char ifname[IFNAMSIZ];
char devnam[MAXPATHLEN];
char peer_authname[64];
int initfdflags;
int hungup;
struct pppcallinfo pci;
int has_proxy_arp;
int attempts;
#ifdef RADIUS
int radius_in ;
int rx_bytes;
int tx_bytes;
time_t start_time;
char session_id[MAXSESSIONID+1];
char remote_number [MAXCID+1] ;
#endif
};
extern struct link_struct lns[NUM_PPP];
/*
* Limits.
*/
#define MAXWORDLEN 1024 /* max length of word in file (incl null) */
#define MAXARGS 1 /* max # args to a command */
#define MAXNAMELEN 256 /* max length of hostname or name for auth */
#define MAXSECRETLEN 256 /* max length of password or secret */
/*
* Global variables.
*/
extern char hostname[]; /* Our hostname */
extern u_char outpacket_buf[]; /* Buffer for outgoing packets */
extern int baud_rate; /* Current link speed in bits/sec */
extern char *progname; /* Name of this program */
extern char pidfilename[MAXPATHLEN];
extern void set_userip(char *ruser,int ruserlen);
#ifdef RADIUS
int radius_acct_start() ;
int radius_acct_stop() ;
#endif
extern char options_rcsid[];
extern char auth_rcsid[];
extern char lcp_rcsid[];
extern char ipcp_rcsid[];
extern char ipxcp_rcsid[];
extern char cbcp_rcsid[];
extern char main_rcsid[];
extern char chap_rcsid[];
#ifdef USE_MSCHAP
extern char chap_ms_rcsid[];
#endif
extern char upap_rcsid[];
extern char ccp_rcsid[];
extern char fsm_rcsid[];
extern char magic_rcsid[];
extern char sys_rcsid[];
/*
* Variables set by command-line options.
*/
extern int maxconnect;
extern int usefirstip,useifip,useifmtu;
extern int deldefaultroute;/* delete default gw, if it exists */
extern int numdev; /* number of handled devices */
extern int debug; /* Debug flag */
extern int kdebugflag; /* Tell kernel to print debug messages */
extern int default_device; /* Using /dev/tty or equivalent */
extern int crtscts; /* Use hardware flow control */
extern int modem; /* Use modem control lines */
extern int inspeed; /* Input/Output speed requested */
extern u_int32_t netmask; /* IP netmask to set on interface */
extern int lockflag; /* Create lock file to lock the serial dev */
extern int nodetach; /* Don't detach from controlling tty */
extern char *connector; /* Script to establish physical link */
extern char *disconnector; /* Script to disestablish physical link */
extern char user[]; /* Username for PAP */
extern char passwd[]; /* Password for PAP */
extern int ask_passwd; /* Ask user for password */
extern int fdpasswd; /* Password via filedescriptor */
extern int auth_required; /* Peer is required to authenticate */
extern int proxyarp; /* Set up proxy ARP entry for peer */
extern int persist; /* Reopen link after it goes down */
extern int uselogin; /* Use /etc/passwd for checking PAP */
extern int lcp_echo_interval; /* Interval between LCP echo-requests */
extern int lcp_echo_fails; /* Tolerance to unanswered echo-requests */
extern char our_name[]; /* Our name for authentication purposes */
extern char remote_name[]; /* Peer's name for authentication */
extern int usehostname; /* Use hostname for our_name */
extern int disable_defaultip; /* Don't use hostname for default IP adrs */
extern char *ipparam; /* Extra parameter for ip up/down scripts */
extern int cryptpap; /* Others' PAP passwords are encrypted */
#ifdef __linux__
extern int hostroute; /* Add a route to the host at the other end? */
#endif
#ifdef IPPP_FILTER
# ifdef HAVE_NET_BPF_H
# include <net/bpf.h>
# else
# ifdef HAVE_PCAP_BPF_H
# include <pcap-bpf.h>
# else
# error no BPF include defined
# endif
# endif
extern struct bpf_program pass_filter; /* Filter for pkts to pass */
extern struct bpf_program active_filter; /* Filter for link-active pkts */
#endif /* IPPP_FILTER */
/*
* Values for phase.
*/
#define PHASE_WAIT -1
#define PHASE_DEAD 0
#define PHASE_ESTABLISH 1
#define PHASE_AUTHENTICATE 2
#define PHASE_CALLBACK 3
#define PHASE_NETWORK 4
#define PHASE_TERMINATE 5
/*
* The following struct gives the addresses of procedures to call
* for a particular protocol.
*/
struct protent {
u_short protocol; /* PPP protocol number */
void (*init) (int unit);
void (*input) (int unit, u_char *pkt, int len);
void (*protrej) (int unit);
void (*lowerup) (int unit);
void (*lowerdown) (int unit);
void (*open) (int unit);
void (*close) (int unit, char *reason);
int (*printpkt) (u_char *pkt, int len, void (*printer) (void *, char *, ...), void *arg);
void (*datainput) (int unit, u_char *pkt, int len);
int enabled_flag; /* 0 iff protocol is disabled */
char *name; /* Text name of protocol */
void (*check_options) (void);
int (*demand_conf) (int unit);
int (*active_pkt) (u_char *pkt, int len);
};
/* Table of pointers to supported protocols */
extern struct protent *protocols[];
/*
* Prototypes.
*/
void quit(void); /* Cleanup and exit */
void timeout(void (*)(), caddr_t, int); /* Look-alike of kernel's timeout() */
void untimeout (void (*)(), caddr_t); /* Look-alike of kernel's untimeout() */
void demuxprotrej (int,u_short); /* Demultiplex a Protocol-Reject */
int check_passwd (int, char *, int, char *, int, char **, int *); /* Check peer-supplied username/password */
#ifdef RADIUS
int radius_check_passwd (int, char *, int, char *, int, char **, int *); /* Check peer-supplied username/password */
#endif
int get_secret (int, char *, char *, char *, int *, int); /* get "secret" for chap */
u_int32_t GetMask (u_int32_t); /* get netmask for address */
void die (int);
void check_access (FILE *, char *);
int ccp_getunit(int,int);
int ipcp_getunit(int);
int lcp_getunit(int);
void ccp_freeunit(int);
void ipcp_freeunit(int);
void lcp_freeunit(int);
char *ip_ntoa(u_int32_t);
int bad_ip_adrs(u_int32_t);
int getword(FILE *,char *,int *,char *);
void print_string(char *p,int len,void (*printer)(void *,char *,...),void *arg);
int auth_ip_addr(int unit,u_int32_t addr);
void auth_peer_fail(int,int,int);
void auth_withpeer_fail(int unit,int protocol,int reason);
void auth_peer_success(int unit,int protocol);
void auth_withpeer_success(int unit,int protocol);
void link_required(int);
void link_terminated(int);
void link_down(int);
void link_established(int unit);
#ifdef IPPP_FILTER
int set_filters(int, struct bpf_program *, struct bpf_program *);
#endif /* IPPP_FILTER */
int device_script(char *program,int in,int out);
void check_auth_options(void);
void setipdefault(void);
int options_from_file(char *filename,int must_exist,int check_prot,int slot);
int options_for_tty(void);
int options_from_user(void);
int parse_args(int argc,char **argv);
int run_program(char *prog,char **args,int must_exist,int tu);
void establish_ppp (int);
void calltimeout (void);
struct timeval *timeleft (struct timeval *);
void reap_kids (void);
void cleanup (int, caddr_t,int);
void close_fd (int);
void die (int);
void novm (char *);
void log_packet (u_char *, int, char *,int);
int set_kdebugflag (int requested_level,int tu);
void sys_init(void);
void note_debug_level (void);
void output_ppp (int unit, unsigned char *p, int len);
void wait_input (struct timeval *timo);
int read_packet (unsigned char *buf,int tu);
void ppp_send_config (int unit,int mtu,u_int32_t asyncmap,int pcomp,int accomp);
void ppp_set_xaccm (int unit, ext_accm accm);
void ppp_recv_config (int unit,int mru,u_int32_t asyncmap,int pcomp,int accomp);
int ccp_test (int unit, u_char *opt_ptr, int opt_len, int for_transmit);
int ccp_get_compressors(int ccp_unit,unsigned long *);
void ccp_flags_set (int unit, int isopen, int isup);
int ccp_fatal_error (int unit);
int sifvjcomp (int unit, int vjcomp, int cidcomp, int maxcid);
int sifup (int u);
int sifdown (int u);
int sifbundle(int,int);
int sifaddr (int unit, int our_adr, int his_adr, int net_mask);
int cifaddr (int unit, int our_adr, int his_adr);
int sifdefaultroute (int unit, int gateway);
int cifdefaultroute (int unit, int gateway);
int sifproxyarp (int unit, u_int32_t his_adr);
int cifproxyarp (int unit, u_int32_t his_adr);
int sipxfaddr (int unit, u_int32_t network, unsigned char * node );
int cipxfaddr (int linkunit);
int ppp_available(char *dev);
int logwtmputmp (int unit,char *line, char *name, char *host);
int lock (char *dev);
void unlock(void);
void setifip(int);
extern void enable_mp(int,int);
void remove_sys_options(void);
u_int32_t magic(void);
int fmtmsg (char *, int, char *, ...); /* sprintf++ */
int vfmtmsg (char *, int, char *, va_list); /* vsprintf++ */
void option_error (char *fmt, ...);
void usage (void); /* Print a usage message */
/*
* This structure is used to store information about certain
* options, such as where the option value came from (/etc/ppp/options,
* command line, etc.) and whether it came from a privileged source.
*/
struct option_info {
int priv; /* was value set by sysadmin? */
char *source; /* where option came from */
};
extern struct option_info auth_req_info;
extern struct option_info connector_info;
extern struct option_info disconnector_info;
extern struct option_info welcomer_info;
extern struct option_info devnam_info;
/*
* Inline versions of get/put char/short/long.
* Pointer is advanced; we assume that both arguments
* are lvalues and will already be in registers.
* cp MUST be u_char *.
*/
#define GETCHAR(c, cp) { \
(c) = *(cp)++; \
}
#define PUTCHAR(c, cp) { \
*(cp)++ = (u_char) (c); \
}
#define GETSHORT(s, cp) { \
(s) = *(cp)++ << 8; \
(s) |= *(cp)++; \
}
#define PUTSHORT(s, cp) { \
*(cp)++ = (u_char) ((s) >> 8); \
*(cp)++ = (u_char) (s); \
}
#define GETLONG(l, cp) { \
(l) = *(cp)++ << 8; \
(l) |= *(cp)++; (l) <<= 8; \
(l) |= *(cp)++; (l) <<= 8; \
(l) |= *(cp)++; \
}
#define PUTLONG(l, cp) { \
*(cp)++ = (u_char) ((l) >> 24); \
*(cp)++ = (u_char) ((l) >> 16); \
*(cp)++ = (u_char) ((l) >> 8); \
*(cp)++ = (u_char) (l); \
}
#define INCPTR(n, cp) ((cp) += (n))
#define DECPTR(n, cp) ((cp) -= (n))
#undef FALSE
#define FALSE 0
#undef TRUE
#define TRUE 1
/*
* System dependent definitions for user-level 4.3BSD UNIX implementation.
*/
#define DEMUXPROTREJ(u, p) demuxprotrej(u, p)
#define TIMEOUT(r, f, t) timeout((r), (f), (t))
#define UNTIMEOUT(r, f) untimeout((r), (f))
#define BCOPY(s, d, l) memcpy(d, s, l)
#define BZERO(s, n) memset(s, 0, n)
#define EXIT(u) quit()
#define PRINTMSG(m, l) { m[l] = '\0'; syslog(LOG_INFO, "Remote message: %s", m); }
/*
* MAKEHEADER - Add Header fields to a packet.
*/
#define MAKEHEADER(p, t) { \
PUTCHAR(PPP_ALLSTATIONS, p); \
PUTCHAR(PPP_UI, p); \
PUTSHORT(t, p); }
#ifdef DEBUGALL
#define DEBUGMAIN 1
#define DEBUGFSM 1
#define DEBUGLCP 1
#define DEBUGIPCP 1
#define DEBUGIPXCP 1
#define DEBUGUPAP 1
#define DEBUGCHAP 1
#endif
#define DEBUGCHAP 1
#ifndef LOG_PPP /* we use LOG_LOCAL2 for syslog by default */
#if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUG) \
|| defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
|| defined(DEBUGCHAP) || defined(DEBUGIPXCP)
#define LOG_PPP LOG_LOCAL2
#else
#define LOG_PPP LOG_DAEMON
#endif
#endif /* LOG_PPP */
#ifdef DEBUGMAIN
#define MAINDEBUG(x) if (debug) syslog x
#else
#define MAINDEBUG(x)
#endif
#ifdef DEBUGFSM
#define FSMDEBUG(x) if (debug) syslog x
#else
#define FSMDEBUG(x)
#endif
#ifdef DEBUGLCP
#define LCPDEBUG(x) if (debug) syslog x
#else
#define LCPDEBUG(x)
#endif
#ifdef DEBUGIPCP
#define IPCPDEBUG(x) if (debug) syslog x
#else
#define IPCPDEBUG(x)
#endif
#ifdef DEBUGIPXCP
#define IPXCPDEBUG(x) if (debug) syslog x
#else
#define IPXCPDEBUG(x)
#endif
#ifdef DEBUGUPAP
#define UPAPDEBUG(x) if (debug) syslog x
#else
#define UPAPDEBUG(x)
#endif
#ifdef DEBUGCHAP
#define CHAPDEBUG(x) if (debug) syslog x
#else
#define CHAPDEBUG(x)
#endif
#ifndef SIGTYPE
#if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
#define SIGTYPE void
#else
#define SIGTYPE int
#endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
#endif /* SIGTYPE */
#ifndef MIN
#define MIN(a, b) ((a) < (b)? (a): (b))
#endif
#ifndef MAX
#define MAX(a, b) ((a) > (b)? (a): (b))
#endif
/* error values for auth-fail script */
#define AUTH_ERR_TIME 1 /* timeout sending auth requests */
#define AUTH_ERR_PROT 2 /* auth protocol rejected */
#define AUTH_ERR_USER 3 /* user or password illegal */
#define AUTH_ERR_PAP 0 /* error in PAP-handling ored with reason */
#define AUTH_ERR_CHAP 8 /* error in CHAP-handling ored with reason */
#endif /* __IPPP_H__ */
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