* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
- * $Id: pppd.h,v 1.11 1996/01/01 23:02:23 paulus Exp $
+ * $Id: pppd.h,v 1.29 1999/03/12 06:07:20 paulus Exp $
*/
/*
#include <sys/time.h> /* for struct timeval */
#include <net/ppp_defs.h>
-#define NUM_PPP 1 /* One PPP interface supported (per process) */
+#if __STDC__
+#include <stdarg.h>
+#define __V(x) x
+#else
+#include <varargs.h>
+#define __V(x) (va_alist) va_dcl
+#define const
+#endif
/*
* Limits.
*/
+#define NUM_PPP 1 /* One PPP interface supported (per process) */
#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 */
+/*
+ * Option descriptor structure.
+ */
+
+typedef unsigned char bool;
+
+enum opt_type {
+ o_special_noarg = 0,
+ o_special = 1,
+ o_bool,
+ o_int,
+ o_uint32,
+ o_string,
+};
+
+typedef struct {
+ char *name; /* name of the option */
+ enum opt_type type;
+ void *addr;
+ char *description;
+ int flags;
+ void *addr2;
+ int upper_limit;
+ int lower_limit;
+} option_t;
+
+/* Values for flags */
+#define OPT_VALUE 0xff /* mask for presupplied value */
+#define OPT_HEX 0x100 /* int option is in hex */
+#define OPT_NOARG 0x200 /* option doesn't take argument */
+#define OPT_OR 0x400 /* OR in argument to value */
+#define OPT_INC 0x800 /* increment value */
+#define OPT_PRIV 0x1000 /* privileged option */
+#define OPT_STATIC 0x2000 /* string option goes into static array */
+#define OPT_LLIMIT 0x4000 /* check value against lower limit */
+#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_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_VAL(x) ((x) & OPT_VALUE)
+
+#ifndef GIDSET_TYPE
+#define GIDSET_TYPE gid_t
+#endif
+
/*
* Global variables.
*/
extern int phase; /* Current state of link - see values below */
extern int baud_rate; /* Current link speed in bits/sec */
extern char *progname; /* Name of this program */
+extern int redirect_stderr;/* Connector's stderr should go to file */
+extern char peer_authname[];/* Authenticated name of peer */
+extern int privileged; /* We were run by real-uid root */
+extern int need_holdoff; /* Need holdoff period after link terminates */
+extern char **script_env; /* Environment variables for scripts */
+extern int detached; /* Have detached from controlling tty */
+extern GIDSET_TYPE groups[NGROUPS_MAX]; /* groups the user is in */
+extern int ngroups; /* How many groups valid in groups */
/*
* Variables set by command-line options.
extern int debug; /* Debug flag */
extern int kdebugflag; /* Tell kernel to print debug messages */
extern int default_device; /* Using /dev/tty or equivalent */
-extern char devnam[]; /* Device name */
+extern char devnam[MAXPATHLEN]; /* Device name */
extern int crtscts; /* Use hardware flow control */
-extern int modem; /* Use modem control lines */
+extern bool 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 bool lockflag; /* Create lock file to lock the serial dev */
+extern bool nodetach; /* Don't detach from controlling tty */
+extern bool updetach; /* Detach from controlling tty when link up */
extern char *connector; /* Script to establish physical link */
extern char *disconnector; /* Script to disestablish physical link */
extern char *welcomer; /* Script to welcome client after connection */
-extern int maxconnect; /* maximum number of seconds for a connection */
-extern char user[]; /* Username for PAP */
-extern char passwd[]; /* Password for PAP */
-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 int demand; /* Do dial-on-demand */
+extern int maxconnect; /* Maximum connect time (seconds) */
+extern char user[MAXNAMELEN];/* Our name for authenticating ourselves */
+extern char passwd[MAXSECRETLEN]; /* Password for PAP */
+extern bool auth_required; /* Peer is required to authenticate */
+extern bool persist; /* Reopen link after it goes down */
+extern bool uselogin; /* Use /etc/passwd for checking PAP */
+extern char our_name[MAXNAMELEN];/* Our name for authentication purposes */
+extern char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
+extern int explicit_remote;/* remote_name specified with remotename opt */
+extern bool demand; /* Do dial-on-demand */
extern char *ipparam; /* Extra parameter for ip up/down scripts */
-extern int cryptpap; /* Others' PAP passwords are encrypted */
+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 */
+#ifdef PPP_FILTER
+extern struct bpf_program pass_filter; /* Filter for pkts to pass */
+extern struct bpf_program active_filter; /* Filter for link-active pkts */
+#endif
+
+char *current_option; /* the name of the option being parsed */
+int privileged_option; /* set iff the current option came from root */
+char *option_source; /* string saying where the option came from */
+
+#ifdef MSLANMAN
+extern bool ms_lanman; /* Use LanMan password instead of NT */
+ /* Has meaning only with MS-CHAP challenges */
+#endif
+
/*
* Values for phase.
*/
#define PHASE_DEAD 0
-#define PHASE_DORMANT 1
-#define PHASE_ESTABLISH 2
-#define PHASE_AUTHENTICATE 3
-#define PHASE_NETWORK 4
-#define PHASE_TERMINATE 5
-#define PHASE_HOLDOFF 6
+#define PHASE_INITIALIZE 1
+#define PHASE_DORMANT 2
+#define PHASE_ESTABLISH 3
+#define PHASE_AUTHENTICATE 4
+#define PHASE_CALLBACK 5
+#define PHASE_NETWORK 6
+#define PHASE_TERMINATE 7
+#define PHASE_HOLDOFF 8
/*
* The following struct gives the addresses of procedures to call
*/
struct protent {
u_short protocol; /* PPP protocol number */
- void (*init)(); /* Initialization procedure */
- void (*input)(); /* Process a received packet */
- void (*protrej)(); /* Process a received protocol-reject */
- void (*lowerup)(); /* Lower layer has come up */
- void (*lowerdown)(); /* Lower layer has gone down */
- void (*open)(); /* Open the protocol */
- void (*close)(); /* Close the protocol */
- int (*printpkt)(); /* Print a packet in readable form */
- void (*datainput)(); /* Process a received data packet */
- int enabled_flag; /* 0 iff protocol is disabled */
+ /* Initialization procedure */
+ void (*init) __P((int unit));
+ /* Process a received packet */
+ void (*input) __P((int unit, u_char *pkt, int len));
+ /* Process a received protocol-reject */
+ void (*protrej) __P((int unit));
+ /* Lower layer has come up */
+ void (*lowerup) __P((int unit));
+ /* Lower layer has gone down */
+ void (*lowerdown) __P((int unit));
+ /* Open the protocol */
+ void (*open) __P((int unit));
+ /* Close the protocol */
+ void (*close) __P((int unit, char *reason));
+ /* Print a packet in readable form */
+ int (*printpkt) __P((u_char *pkt, int len,
+ void (*printer) __P((void *, char *, ...)),
+ void *arg));
+ /* Process a received data packet */
+ void (*datainput) __P((int unit, u_char *pkt, int len));
+ bool enabled_flag; /* 0 iff protocol is disabled */
char *name; /* Text name of protocol */
- void (*check_options)(); /* Check requested options, assign dflts */
- int (*demand_conf)(); /* Configure interface for demand-dial */
+ option_t *options; /* List of command-line options */
+ /* Check requested options, assign defaults */
+ void (*check_options) __P((void));
+ /* Configure interface for demand-dial */
+ int (*demand_conf) __P((int unit));
+ /* Say whether to bring up link for this pkt */
+ int (*active_pkt) __P((u_char *pkt, int len));
};
/* Table of pointers to supported protocols */
*/
/* Procedures exported from main.c. */
+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)(), caddr_t arg, int t));
+void timeout __P((void (*func)(void *), void *arg, int t));
/* Call func(arg) after t seconds */
-void untimeout __P((void (*func)(), caddr_t arg));
+void untimeout __P((void (*func)(void *), void *arg));
/* Cancel call to func(arg) */
-int run_program __P((char *prog, char **args, int must_exist));
+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 demuxprotrej __P((int, int));
/* Demultiplex a Protocol-Reject */
void format_packet __P((u_char *, int, void (*) (void *, char *, ...),
void *)); /* Format a packet in human-readable form */
-void log_packet __P((u_char *, int, char *));
+void log_packet __P((u_char *, int, char *, int));
/* Format a packet and log it with syslog */
void print_string __P((char *, int, void (*) (void *, char *, ...),
void *)); /* Format a string for output */
+int slprintf __P((char *, int, char *, ...)); /* sprintf++ */
+int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */
+void script_setenv __P((char *, char *)); /* set script env var */
+void script_unsetenv __P((char *)); /* unset script env var */
+void hangup_modem __P((int)); /* Make modem hang up */
+void strlcpy __P((char *, size_t, const char *)); /* safe strcpy */
+void strlcat __P((char *, size_t, const char *)); /* safe strncpy */
+void dbglog __P((char *, ...)); /* log a debug message */
+void info __P((char *, ...)); /* log an informational message */
+void notice __P((char *, ...)); /* log a notice-level message */
+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) */
/* Procedures exported from auth.c */
void link_required __P((int)); /* we are starting to use the link */
void np_finished __P((int, int)); /* a network protocol no longer needs link */
void auth_peer_fail __P((int, int));
/* peer failed to authenticate itself */
-void auth_peer_success __P((int, int));
+void auth_peer_success __P((int, int, char *, int));
/* peer successfully authenticated itself */
void auth_withpeer_fail __P((int, int));
/* we failed to authenticate ourselves */
void auth_withpeer_success __P((int, int));
/* we successfully authenticated ourselves */
-void check_auth_options __P((void));
+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 *));
/* Check peer-supplied username/password */
int get_secret __P((int, char *, char *, char *, int *, int));
/* Procedures exported from sys-*.c */
void sys_init __P((void)); /* Do system-dependent initialization */
void sys_cleanup __P((void)); /* Restore system state before exiting */
-void sys_check_options __P((void)); /* Check options specified */
+int sys_check_options __P((void)); /* Check options specified */
void sys_close __P((void)); /* Clean up in a child before execing */
-void note_debug_level __P((void)); /* Note change in debug level */
int ppp_available __P((void)); /* Test whether ppp kernel support exists */
void open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
void establish_ppp __P((int)); /* Turn serial port into a ppp interface */
-/*void transfer_ppp __P((int)); /* Transfer ppp unit to another fd */
void restore_loop __P((void)); /* Transfer ppp unit back to loopback */
void disestablish_ppp __P((int)); /* Restore port to normal operation */
void clean_check __P((void)); /* Check if line was 8-bit clean */
void output __P((int, u_char *, int)); /* Output a PPP packet */
void wait_input __P((struct timeval *));
/* Wait for input, with timeout */
+void wait_loop_output __P((struct timeval *));
+ /* Wait for pkt from loopback, with timeout */
+void wait_time __P((struct timeval *)); /* Wait for given length of time */
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));
/* Configure i/f transmit parameters */
void ppp_set_xaccm __P((int, ext_accm));
void ccp_flags_set __P((int, int, int));
/* Set kernel CCP state */
int ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */
+int get_idle_time __P((int, struct ppp_idle *));
+ /* Find out how long link has been idle */
int sifvjcomp __P((int, int, int, int));
/* Configure VJ TCP header compression */
int sifup __P((int)); /* Configure i/f up (for IP) */
+int sifnpmode __P((int u, int proto, enum NPmode mode));
+ /* Set mode for handling packets for proto */
int sifdown __P((int)); /* Configure i/f down (for IP) */
int sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));
/* Configure IP addresses for i/f */
int cifaddr __P((int, u_int32_t, u_int32_t));
/* Reset i/f IP addresses */
-int sifdefaultroute __P((int, u_int32_t));
+int sifdefaultroute __P((int, u_int32_t, u_int32_t));
/* Create default route through i/f */
-int cifdefaultroute __P((int, u_int32_t));
+int cifdefaultroute __P((int, u_int32_t, u_int32_t));
/* Delete default route through i/f */
int sifproxyarp __P((int, u_int32_t));
/* Add proxy ARP entry for peer */
int lock __P((char *)); /* Create lock file for device */
void unlock __P((void)); /* Delete previously-created lock file */
int daemon __P((int, int)); /* Detach us from terminal session */
-int logwtmp __P((char *, char *, char *));
+void logwtmp __P((const char *, const char *, const char *));
/* Write entry to wtmp file */
+int get_host_seed __P((void)); /* Get host-dependent random number seed */
+int have_route_to __P((u_int32_t)); /* Check if route to addr exists */
+#ifdef PPP_FILTER
+int set_filters __P((struct bpf_program *pass, struct bpf_program *active));
+ /* Set filter programs in kernel */
+#endif
+#ifdef IPX_CHANGE
+int sipxfaddr __P((int, unsigned long, unsigned char *));
+int cipxfaddr __P((int));
+#endif
+
+/* Procedures exported from options.c */
+int parse_args __P((int argc, char **argv));
+ /* Parse options from arguments given */
+void usage __P((void)); /* Print a usage message */
+int options_from_file __P((char *filename, int must_exist, int check_prot,
+ int privileged));
+ /* Parse options from an options file */
+int options_from_user __P((void)); /* Parse options from user's .ppprc */
+int options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */
+void scan_args __P((int argc, char **argv));
+ /* Look for tty name in command-line args */
+int getword __P((FILE *f, char *word, int *newlinep, char *filename));
+ /* Read a word from a file */
+void option_error __P((char *fmt, ...));
+ /* Print an error message about an option */
+int readable __P((int fd)); /* Is fd readable by real user? */
+int number_option __P((char *, u_int32_t *, int));
+ /* Parse a numerical option */
+int int_option __P((char *, int *));
+ /* Simplified number_option for decimal ints */
+
+/*
+ * 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 devnam_info;
+extern struct option_info connector_info;
+extern struct option_info disconnector_info;
+extern struct option_info welcomer_info;
/*
* Inline versions of get/put char/short/long.
#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); }
+#define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
/*
* MAKEHEADER - Add Header fields to a packet.
#define CHAPDEBUG(x)
#endif
+#ifdef DEBUGIPXCP
+#define IPXCPDEBUG(x) if (debug) syslog x
+#else
+#define IPXCPDEBUG(x)
+#endif
+
#ifndef SIGTYPE
#if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
#define SIGTYPE void
projects / ppp.git / blobdiff