* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
- * $Id: pppd.h,v 1.45 1999/08/24 05:31:11 paulus Exp $
+ * $Id: pppd.h,v 1.66 2002/03/01 14:39:18 dfs Exp $
*/
/*
#include <sys/types.h> /* for u_int32_t, if defined */
#include <sys/time.h> /* for struct timeval */
#include <net/ppp_defs.h>
+#include "patchlevel.h"
-#if __STDC__
+#if defined(__STDC__)
#include <stdarg.h>
#define __V(x) x
#else
#define volatile
#endif
-#if INET6
+#ifdef INET6
#include "eui64.h"
#endif
o_int,
o_uint32,
o_string,
+ o_wild
};
typedef struct {
void *addr2;
int upper_limit;
int lower_limit;
+ const char *source;
+ short int priority;
+ short int winner;
+ void *addr3;
} option_t;
/* Values for flags */
#define OPT_ULIMIT 0x8000 /* check value against upper limit */
#define OPT_LIMITS (OPT_LLIMIT|OPT_ULIMIT)
#define OPT_ZEROOK 0x10000 /* 0 value is OK even if not within limits */
+#define OPT_HIDE 0x10000 /* for o_string, print value as ?????? */
+#define OPT_A2LIST 0x10000 /* for o_special, keep list of values */
+#define OPT_A2CLRB 0x10000 /* o_bool, clr val bits in *(u_char *)addr2 */
#define OPT_NOINCR 0x20000 /* value mustn't be increased */
#define OPT_ZEROINF 0x40000 /* with OPT_NOINCR, 0 == infinity */
-#define OPT_A2INFO 0x100000 /* addr2 -> option_info to update */
-#define OPT_A2COPY 0x200000 /* addr2 -> second location to rcv value */
-#define OPT_ENABLE 0x400000 /* use *addr2 as enable for option */
-#define OPT_PRIVFIX 0x800000 /* can't be overridden if noauth */
-#define OPT_PREPASS 0x1000000 /* do this opt in pre-pass to find device */
-#define OPT_INITONLY 0x2000000 /* option can only be set in init phase */
-#define OPT_DEVEQUIV 0x4000000 /* equiv to device name */
-#define OPT_DEVNAM (OPT_PREPASS | OPT_INITONLY | OPT_DEVEQUIV)
+#define OPT_PRIO 0x80000 /* process option priorities for this option */
+#define OPT_PRIOSUB 0x100000 /* subsidiary member of priority group */
+#define OPT_ALIAS 0x200000 /* option is alias for previous option */
+#define OPT_A2COPY 0x400000 /* addr2 -> second location to rcv value */
+#define OPT_ENABLE 0x800000 /* use *addr2 as enable for option */
+#define OPT_A2CLR 0x1000000 /* clear *(bool *)addr2 */
+#define OPT_PRIVFIX 0x2000000 /* user can't override if set by root */
+#define OPT_INITONLY 0x4000000 /* option can only be set in init phase */
+#define OPT_DEVEQUIV 0x8000000 /* equiv to device name */
+#define OPT_DEVNAM (OPT_INITONLY | OPT_DEVEQUIV)
+#define OPT_A2PRINTER 0x10000000 /* *addr2 is a fn for printing option */
+#define OPT_A2STRVAL 0x20000000 /* *addr2 points to current string value */
+#define OPT_NOPRINT 0x40000000 /* don't print this option at all */
+#define OPT_A3OR 0x80000000 /* addr3 -> third location to rcv | value */
#define OPT_VAL(x) ((x) & OPT_VALUE)
+/* Values for priority */
+#define OPRIO_DEFAULT 0 /* a default value */
+#define OPRIO_CFGFILE 1 /* value from a configuration file */
+#define OPRIO_CMDLINE 2 /* value from the command line */
+#define OPRIO_SECFILE 3 /* value from options in a secrets file */
+#define OPRIO_ROOT 100 /* added to priority if OPT_PRIVFIX && root */
+
#ifndef GIDSET_TYPE
#define GIDSET_TYPE gid_t
#endif
struct pppd_stats {
unsigned int bytes_in;
unsigned int bytes_out;
+ unsigned int pkts_in;
+ unsigned int pkts_out;
};
/* Used for storing a sequence of words. Usually malloced. */
char *word;
};
+/* An endpoint discriminator, used with multilink. */
+#define MAX_ENDP_LEN 20 /* maximum length of discriminator value */
+struct epdisc {
+ unsigned char class;
+ unsigned char length;
+ unsigned char value[MAX_ENDP_LEN];
+};
+
+/* values for epdisc.class */
+#define EPD_NULL 0 /* null discriminator, no data */
+#define EPD_LOCAL 1
+#define EPD_IP 2
+#define EPD_MAC 3
+#define EPD_MAGIC 4
+#define EPD_PHONENUM 5
+
+typedef void (*notify_func) __P((void *, int));
+
+struct notifier {
+ struct notifier *next;
+ notify_func func;
+ void *arg;
+};
+
/*
* Global variables.
*/
extern int hungup; /* Physical layer has disconnected */
extern int ifunit; /* Interface unit number */
extern char ifname[]; /* Interface name */
-extern int ttyfd; /* Serial device file descriptor */
extern char hostname[]; /* Our hostname */
extern u_char outpacket_buf[]; /* Buffer for outgoing packets */
extern int phase; /* Current state of link - see values below */
extern int ngroups; /* How many groups valid in groups */
extern struct pppd_stats link_stats; /* byte/packet counts etc. for link */
extern int link_stats_valid; /* set if link_stats is valid */
+extern int link_connect_time; /* time the link was up for */
extern int using_pty; /* using pty as device (notty or pty opt.) */
extern int log_to_fd; /* logging to this fd as well as syslog */
+extern bool log_default; /* log_to_fd is default (stdout) */
extern char *no_ppp_msg; /* message to print if ppp not in kernel */
extern volatile int status; /* exit status for pppd */
-extern int devnam_fixed; /* can no longer change devnam */
+extern bool devnam_fixed; /* can no longer change devnam */
extern int unsuccess; /* # unsuccessful connection attempts */
+extern int do_callback; /* set if we want to do callback next */
+extern int doing_callback; /* set if this is a callback */
+extern char ppp_devnam[MAXPATHLEN];
+extern char remote_number[MAXNAMELEN]; /* Remote telephone number, if avail. */
+extern int ppp_session_number; /* Session number (eg PPPoE session) */
+
+extern int listen_time; /* time to listen first (ms) */
+extern struct notifier *pidchange; /* for notifications of pid changing */
+extern struct notifier *phasechange; /* for notifications of phase changes */
+extern struct notifier *exitnotify; /* for notification that we're exiting */
+extern struct notifier *sigreceived; /* notification of received signal */
+extern struct notifier *ip_up_notifier; /* IPCP has come up */
+extern struct notifier *ip_down_notifier; /* IPCP has gone down */
+extern struct notifier *auth_up_notifier; /* peer has authenticated */
+extern struct notifier *link_down_notifier; /* link has gone down */
+
+/* Values for do_callback and doing_callback */
+#define CALLBACK_DIALIN 1 /* we are expecting the call back */
+#define CALLBACK_DIALOUT 2 /* we are dialling out to call back */
/*
* Variables set by command-line options.
extern bool nodetach; /* Don't detach from controlling tty */
extern bool updetach; /* Detach from controlling tty when link up */
extern char *initializer; /* Script to initialize physical link */
-extern char *connector; /* Script to establish physical link */
-extern char *disconnector; /* Script to disestablish physical link */
+extern char *connect_script; /* Script to establish physical link */
+extern char *disconnect_script; /* Script to disestablish physical link */
extern char *welcomer; /* Script to welcome client after connection */
extern char *ptycommand; /* Command to run on other side of pty */
extern int maxconnect; /* Maximum connect time (seconds) */
extern bool cryptpap; /* Others' PAP passwords are encrypted */
extern int idle_time_limit;/* Shut down link if idle for this long */
extern int holdoff; /* Dead time before restarting */
+extern bool holdoff_specified; /* true if user gave a holdoff value */
extern bool notty; /* Stdin/out is not a tty */
+extern char *pty_socket; /* Socket to connect to pty */
extern char *record_file; /* File to record chars sent/received */
extern bool sync_serial; /* Device is synchronous serial device */
extern int maxfail; /* Max # of unsuccessful connection attempts */
extern char linkname[MAXPATHLEN]; /* logical name for link */
+extern bool tune_kernel; /* May alter kernel settings as necessary */
+extern int connect_delay; /* Time to delay after connect script */
+extern int max_data_rate; /* max bytes/sec through charshunt */
+extern int req_unit; /* interface unit number to use */
+extern bool multilink; /* enable multilink operation */
+extern bool noendpoint; /* don't send or accept endpt. discrim. */
+extern char *bundle_name; /* bundle name for multilink */
+extern bool dump_options; /* print out option values */
+extern bool dryrun; /* check everything, print options, exit */
#ifdef PPP_FILTER
extern struct bpf_program pass_filter; /* Filter for pkts to pass */
extern char *current_option; /* the name of the option being parsed */
extern int privileged_option; /* set iff the current option came from root */
extern char *option_source; /* string saying where the option came from */
+extern int option_priority; /* priority of current options */
/*
* Values for phase.
#define PHASE_AUTHENTICATE 5
#define PHASE_CALLBACK 6
#define PHASE_NETWORK 7
-#define PHASE_TERMINATE 8
-#define PHASE_HOLDOFF 9
+#define PHASE_RUNNING 8
+#define PHASE_TERMINATE 9
+#define PHASE_DISCONNECT 10
+#define PHASE_HOLDOFF 11
/*
* The following struct gives the addresses of procedures to call
/* Table of pointers to supported protocols */
extern struct protent *protocols[];
+/*
+ * This struct contains pointers to a set of procedures for
+ * doing operations on a "channel". A channel provides a way
+ * to send and receive PPP packets - the canonical example is
+ * a serial port device in PPP line discipline (or equivalently
+ * with PPP STREAMS modules pushed onto it).
+ */
+struct channel {
+ /* set of options for this channel */
+ option_t *options;
+ /* find and process a per-channel options file */
+ void (*process_extra_options) __P((void));
+ /* check all the options that have been given */
+ void (*check_options) __P((void));
+ /* get the channel ready to do PPP, return a file descriptor */
+ int (*connect) __P((void));
+ /* we're finished with the channel */
+ void (*disconnect) __P((void));
+ /* put the channel into PPP `mode' */
+ int (*establish_ppp) __P((int));
+ /* take the channel out of PPP `mode', restore loopback if demand */
+ void (*disestablish_ppp) __P((int));
+ /* set the transmit-side PPP parameters of the channel */
+ void (*send_config) __P((int, u_int32_t, int, int));
+ /* set the receive-side PPP parameters of the channel */
+ void (*recv_config) __P((int, u_int32_t, int, int));
+ /* cleanup on error or normal exit */
+ void (*cleanup) __P((void));
+ /* close the device, called in children after fork */
+ void (*close) __P((void));
+};
+
+extern struct channel *the_channel;
+
+#define ppp_send_config(unit, mtu, accm, pc, acc) \
+do { \
+ if (the_channel->send_config) \
+ (*the_channel->send_config)((mtu), (accm), (pc), (acc)); \
+} while (0)
+
+#define ppp_recv_config(unit, mtu, accm, pc, acc) \
+do { \
+ if (the_channel->send_config) \
+ (*the_channel->recv_config)((mtu), (accm), (pc), (acc)); \
+} while (0)
+
/*
* Prototypes.
*/
/* Procedures exported from main.c. */
+void set_ifunit __P((int)); /* set stuff that depends on ifunit */
void detach __P((void)); /* Detach from controlling tty */
void die __P((int)); /* Cleanup and exit */
void quit __P((void)); /* like die(1) */
void novm __P((char *)); /* Say we ran out of memory, and die */
-void timeout __P((void (*func)(void *), void *arg, int t));
- /* Call func(arg) after t seconds */
+void timeout __P((void (*func)(void *), void *arg, int s, int us));
+ /* Call func(arg) after s.us seconds */
void untimeout __P((void (*func)(void *), void *arg));
/* Cancel call to func(arg) */
+void record_child __P((int, char *, void (*) (void *), void *));
+int device_script __P((char *cmd, int in, int out, int dont_wait));
+ /* Run `cmd' with given stdin and stdout */
pid_t run_program __P((char *prog, char **args, int must_exist,
void (*done)(void *), void *arg));
/* Run program prog with args in child */
void reopen_log __P((void)); /* (re)open the connection to syslog */
void update_link_stats __P((int)); /* Get stats at link termination */
-void script_setenv __P((char *, char *)); /* set script env var */
+void script_setenv __P((char *, char *, int)); /* set script env var */
void script_unsetenv __P((char *)); /* unset script env var */
+void new_phase __P((int)); /* signal start of new phase */
+void add_notifier __P((struct notifier **, notify_func, void *));
+void remove_notifier __P((struct notifier **, notify_func, void *));
+void notify __P((struct notifier *, int));
+
+/* Procedures exported from tty.c. */
+void tty_init __P((void));
/* Procedures exported from utils.c. */
void log_packet __P((u_char *, int, char *, int));
void warn __P((char *, ...)); /* log a warning message */
void error __P((char *, ...)); /* log an error message */
void fatal __P((char *, ...)); /* log an error message and die(1) */
+void init_pr_log __P((char *, int)); /* initialize for using pr_log */
+void pr_log __P((void *, char *, ...)); /* printer fn, output to syslog */
+void end_pr_log __P((void)); /* finish up after using pr_log */
+void dump_packet __P((const char *, u_char *, int));
+ /* dump packet to debug log if interesting */
/* Procedures exported from auth.c */
void link_required __P((int)); /* we are starting to use the link */
void auth_check_options __P((void));
/* check authentication options supplied */
void auth_reset __P((int)); /* check what secrets we have */
-int check_passwd __P((int, char *, int, char *, int, char **, int *));
+int check_passwd __P((int, char *, int, char *, int, char **));
/* Check peer-supplied username/password */
int get_secret __P((int, char *, char *, char *, int *, int));
/* get "secret" for chap */
int loop_chars __P((unsigned char *, int)); /* process chars from loopback */
int loop_frame __P((unsigned char *, int)); /* should we bring link up? */
+/* Procedures exported from multilink.c */
+void mp_check_options __P((void)); /* Check multilink-related options */
+int mp_join_bundle __P((void)); /* join our link to an appropriate bundle */
+char *epdisc_to_str __P((struct epdisc *)); /* string from endpoint discrim. */
+int str_to_epdisc __P((struct epdisc *, char *)); /* endpt disc. from str */
+
/* Procedures exported from sys-*.c */
void sys_init __P((void)); /* Do system-dependent initialization */
void sys_cleanup __P((void)); /* Restore system state before exiting */
int ppp_available __P((void)); /* Test whether ppp kernel support exists */
int get_pty __P((int *, int *, char *, int)); /* Get pty master/slave */
int open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
-int establish_ppp __P((int)); /* Turn serial port into a ppp interface */
-void restore_loop __P((void)); /* Transfer ppp unit back to loopback */
-void disestablish_ppp __P((int)); /* Restore port to normal operation */
+int tty_establish_ppp __P((int)); /* Turn serial port into a ppp interface */
+void tty_disestablish_ppp __P((int)); /* Restore port to normal operation */
+void generic_disestablish_ppp __P((int dev_fd)); /* Restore device setting */
+int generic_establish_ppp __P((int dev_fd)); /* Make a ppp interface */
+void make_new_bundle __P((int, int, int, int)); /* Create new bundle */
+int bundle_attach __P((int)); /* Attach link to existing bundle */
+void cfg_bundle __P((int, int, int, int)); /* Configure existing bundle */
void clean_check __P((void)); /* Check if line was 8-bit clean */
void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */
void restore_tty __P((int)); /* Restore port's original parameters */
void remove_fd __P((int)); /* Remove fd from set to wait for */
int read_packet __P((u_char *)); /* Read PPP packet */
int get_loop_output __P((void)); /* Read pkts from loopback */
-void ppp_send_config __P((int, int, u_int32_t, int, int));
+void tty_send_config __P((int, u_int32_t, int, int));
/* Configure i/f transmit parameters */
-void ppp_set_xaccm __P((int, ext_accm));
+void tty_set_xaccm __P((ext_accm));
/* Set extended transmit ACCM */
-void ppp_recv_config __P((int, int, u_int32_t, int, int));
+void tty_recv_config __P((int, u_int32_t, int, int));
/* Configure i/f receive parameters */
int ccp_test __P((int, u_char *, int, int));
/* Test support for compression scheme */
/* Find out how long link has been idle */
int get_ppp_stats __P((int, struct pppd_stats *));
/* Return link statistics */
+void netif_set_mtu __P((int, int)); /* Set PPP interface MTU */
int sifvjcomp __P((int, int, int, int));
/* Configure VJ TCP header compression */
int sifup __P((int)); /* Configure i/f up for one protocol */
/* Configure IPv4 addresses for i/f */
int cifaddr __P((int, u_int32_t, u_int32_t));
/* Reset i/f IP addresses */
-#if INET6
-int sif6up __P((int)); /* Configure i/f up (for IPv6) */
-int sif6down __P((int)); /* Configure i/f down (for IPv6) */
+#ifdef INET6
int sif6addr __P((int, eui64_t, eui64_t));
/* Configure IPv6 addresses for i/f */
int cif6addr __P((int, eui64_t, eui64_t));
int sipxfaddr __P((int, unsigned long, unsigned char *));
int cipxfaddr __P((int));
#endif
+int get_if_hwaddr __P((u_char *addr, char *name));
+char *get_first_ethernet __P((void));
/* Procedures exported from options.c */
+int setipaddr __P((char *, char **, int)); /* Set local/remote ip addresses */
int parse_args __P((int argc, char **argv));
/* Parse options from arguments given */
int options_from_file __P((char *filename, int must_exist, int check_prot,
/* Print an error message about an option */
int int_option __P((char *, int *));
/* Simplified number_option for decimal ints */
+void add_options __P((option_t *)); /* Add extra options */
+void check_options __P((void)); /* check values after all options parsed */
+int override_value __P((const char *, int, const char *));
+ /* override value if permitted by priority */
+void print_options __P((void (*) __P((void *, char *, ...)), void *));
+ /* print out values of all options */
+
+int parse_dotted_ip __P((char *, u_int32_t *));
/*
- * 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.
+ * Hooks to enable plugins to change various things.
*/
-
-struct option_info {
- int priv; /* was value set by sysadmin? */
- char *source; /* where option came from */
-};
-
-extern struct option_info devnam_info;
-extern struct option_info initializer_info;
-extern struct option_info connector_info;
-extern struct option_info disconnector_info;
-extern struct option_info welcomer_info;
-extern struct option_info ptycommand_info;
+extern int (*new_phase_hook) __P((int));
+extern int (*idle_time_hook) __P((struct ppp_idle *));
+extern int (*holdoff_hook) __P((void));
+extern int (*pap_check_hook) __P((void));
+extern int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
+ struct wordlist **paddrs,
+ struct wordlist **popts));
+extern void (*pap_logout_hook) __P((void));
+extern int (*pap_passwd_hook) __P((char *user, char *passwd));
+extern int (*allowed_address_hook) __P((u_int32_t addr));
+extern void (*ip_up_hook) __P((void));
+extern void (*ip_down_hook) __P((void));
+extern void (*ip_choose_hook) __P((u_int32_t *));
+
+extern int (*chap_check_hook) __P((void));
+extern int (*chap_passwd_hook) __P((char *user, char *passwd));
+
+/* Let a plugin snoop sent and received packets. Useful for L2TP */
+extern void (*snoop_recv_hook) __P((unsigned char *p, int len));
+extern void (*snoop_send_hook) __P((unsigned char *p, int len));
/*
* Inline versions of get/put char/short/long.
* System dependent definitions for user-level 4.3BSD UNIX implementation.
*/
-#define TIMEOUT(r, f, t) timeout((r), (f), (t))
+#define TIMEOUT(r, f, t) timeout((r), (f), (t), 0)
#define UNTIMEOUT(r, f) untimeout((r), (f))
#define BCOPY(s, d, l) memcpy(d, s, l)
#define MAX(a, b) ((a) > (b)? (a): (b))
#endif
+#ifndef offsetof
+#define offsetof(type, member) ((size_t) &((type *)0)->member)
+#endif
+
#endif /* __PPP_H__ */
projects / ppp.git / blobdiff