release/src/router/xl2tpd/file.h

   1 /*
   2  * Layer Two Tunnelling Protocol Daemon
   3  * Copyright (C) 1998 Adtran, Inc.
   4  * Copyright (C) 2002 Jeff McAdams
   5  *
   6  * Mark Spencer
   7  *
   8  * This software is distributed under the terms
   9  * of the GPL, which you should have received
  10  * along with this source.
  11  *
  12  * File format handling header file
  13  *
  14  */
  15
  16 #ifndef _FILE_H
  17 #define _FILE_H
  18
  19 #define STRLEN 80               /* Length of a string */
  20
  21 /* Definition of a keyword */
  22 struct keyword
  23 {
  24     char *keyword;
  25     int (*handler) (char *word, char *value, int context, void *item);
  26 };
  27
  28 struct iprange
  29 {
  30     unsigned int start;
  31     unsigned int end;
  32     int sense;
  33     struct iprange *next;
  34 };
  35
  36 struct host
  37 {
  38     char hostname[STRLEN];
  39     int port;
  40     struct host *next;
  41 };
  42
  43
  44 #define CONTEXT_GLOBAL  1
  45 #define CONTEXT_LNS             2
  46 #define CONTEXT_LAC             3
  47 #define CONTEXT_DEFAULT 256
  48
  49 #define SENSE_ALLOW -1
  50 #define SENSE_DENY 0
  51
  52 #ifndef DEFAULT_AUTH_FILE
  53 #define DEFAULT_AUTH_FILE "/etc/l2tp-secrets"
  54 #endif
  55 #ifndef DEFAULT_CONFIG_FILE
  56 #define DEFAULT_CONFIG_FILE "/etc/xl2tpd.conf"
  57 #endif
  58 #define ALT_DEFAULT_AUTH_FILE ""
  59 #define ALT_DEFAULT_CONFIG_FILE ""
  60 #define DEFAULT_PID_FILE "/var/run/xl2tpd.pid"
  61
  62 /* Definition of an LNS */
  63 struct lns
  64 {
  65     struct lns *next;
  66     int exclusive;              /* Only one tunnel per host? */
  67     int active;                 /* Is this actively in use? */
  68     unsigned int localaddr;     /* Local IP for PPP connections */
  69     int tun_rws;                /* Receive window size (tunnel) */
  70     int call_rws;               /* Call rws */
  71     int rxspeed;                /* Tunnel rx speed */
  72     int txspeed;                /* Tunnel tx speed */
  73     int hbit;                   /* Permit hidden AVP's? */
  74     int lbit;                   /* Use the length field? */
  75     int challenge;              /* Challenge authenticate the peer? */
  76     int authpeer;               /* Authenticate our peer? */
  77     int authself;               /* Authenticate ourselves? */
  78     char authname[STRLEN];      /* Who we authenticate as */
  79     char peername[STRLEN];      /* Force peer name to this */
  80     char hostname[STRLEN];      /* Hostname to report */
  81     char entname[STRLEN];       /* Name of this entry */
  82     struct iprange *lacs;       /* Hosts permitted to connect */
  83     struct iprange *range;      /* Range of IP's we provide */
  84     int assign_ip;              /* Do we actually provide IP addresses? */
  85     int passwdauth;             /* Authenticate by passwd file? (or PAM) */
  86     int pap_require;            /* Require PAP auth for PPP */
  87     int chap_require;           /* Require CHAP auth for PPP */
  88     int pap_refuse;             /* Refuse PAP authentication for us */
  89     int chap_refuse;            /* Refuse CHAP authentication for us */
  90     int idle;                   /* Idle timeout in seconds */
  91     unsigned int pridns;        /* Primary DNS server */
  92     unsigned int secdns;        /* Secondary DNS server */
  93     unsigned int priwins;       /* Primary WINS server */
  94     unsigned int secwins;       /* Secondary WINS server */
  95     int proxyarp;               /* Use proxy-arp? */
  96     int proxyauth;              /* Allow proxy authentication? */
  97     int debug;                  /* Debug PPP? */
  98     char pppoptfile[STRLEN];    /* File containing PPP options */
  99     struct tunnel *t;           /* Tunnel of this, if it's ready */
 100 };
 101
 102 struct lac
 103 {
 104     struct lac *next;
 105     struct host *lns;           /* LNS's we can connect to */
 106     struct schedule_entry *rsched;
 107     int tun_rws;                /* Receive window size (tunnel) */
 108     int call_rws;               /* Call rws */
 109     int rxspeed;                /* Tunnel rx speed */
 110     int txspeed;                /* Tunnel tx speed */
 111     int active;                 /* Is this connection in active use? */
 112     int hbit;                   /* Permit hidden AVP's? */
 113     int lbit;                   /* Use the length field? */
 114     int challenge;              /* Challenge authenticate the peer? */
 115     unsigned int localaddr;     /* Local IP address */
 116     unsigned int remoteaddr;    /* Force remote address to this */
 117     char authname[STRLEN];      /* Who we authenticate as */
 118     char password[STRLEN];      /* Password to authenticate with */
 119     char peername[STRLEN];      /* Force peer name to this */
 120     char hostname[STRLEN];      /* Hostname to report */
 121     char entname[STRLEN];       /* Name of this entry */
 122     int authpeer;               /* Authenticate our peer? */
 123     int authself;               /* Authenticate ourselves? */
 124     int pap_require;            /* Require PAP auth for PPP */
 125     int chap_require;           /* Require CHAP auth for PPP */
 126     int pap_refuse;             /* Refuse PAP authentication for us */
 127     int chap_refuse;            /* Refuse CHAP authentication for us */
 128     int idle;                   /* Idle timeout in seconds */
 129     int autodial;               /* Try to dial immediately? */
 130     int defaultroute;           /* Use as default route? */
 131     int redial;                 /* Redial if disconnected */
 132     int rmax;                   /* Maximum # of consecutive redials */
 133     int rtries;                 /* # of tries so far */
 134     int rtimeout;               /* Redial every this many # of seconds */
 135     char pppoptfile[STRLEN];    /* File containing PPP options */
 136     int debug;
 137     struct tunnel *t;           /* Our tunnel */
 138     struct call *c;             /* Our call */
 139 };
 140
 141 struct global
 142 {
 143     unsigned int listenaddr;    /* IP address to bind to */
 144     int port;                   /* Port number to listen to */
 145     char authfile[STRLEN];      /* File containing authentication info */
 146     char altauthfile[STRLEN];   /* File containing authentication info */
 147     char configfile[STRLEN];    /* File containing configuration info */
 148     char altconfigfile[STRLEN]; /* File containing configuration info */
 149     char pidfile[STRLEN];       /* File containing the pid number*/
 150     char controlfile[STRLEN];   /* Control file name (named pipe) */
 151     int daemon;                 /* Use daemon mode? */
 152     int accesscontrol;          /* Use access control? */
 153     int forceuserspace;         /* Force userspace? */
 154     int packet_dump;            /* Dump (print) all packets? */
 155     int debug_avp;              /* Print AVP debugging info? */
 156     int debug_network;          /* Print network debugging info? */
 157     int debug_tunnel;           /* Print tunnel debugging info? */
 158     int debug_state;            /* Print FSM debugging info? */
 159     int ipsecsaref;
 160     int sarefnum;               /* Value of IPSEC_REFINFO used by kernel
 161                                  * (we used to pick 22, but 2.6.36+ took that, so now we pick 30)
 162                                  * Changed in SAref patch in openswan 2.6.36 for linux 2.6.36+ */
 163 };
 164
 165 extern struct global gconfig;   /* Global configuration options */
 166
 167 extern struct lns *lnslist;     /* All LNS entries */
 168 extern struct lac *laclist;     /* All LAC entries */
 169 extern struct lns *deflns;      /* Default LNS config */
 170 extern struct lac *deflac;      /* Default LAC config */
 171 extern int init_config ();      /* Read in the config file */
 172
 173 /* Tries to apply _word_ option with _value_ to _item_ in _context_ */
 174 extern int parse_one_option (char *word, char *value, int context, void *item);
 175 /* Allocate memory and filled up new lac */
 176 extern struct lac *new_lac ();
 177 #endif