/*
* pppd.h - PPP daemon global declarations.
*
- * Copyright (c) 1989 Carnegie Mellon University.
- * All rights reserved.
+ * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
*
- * 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.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
*
- * $Id: pppd.h,v 1.64 2002/01/22 16:02:58 dfs Exp $
+ * 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. The name "Carnegie Mellon University" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For permission or any legal
+ * details, please contact
+ * Office of Technology Transfer
+ * Carnegie Mellon University
+ * 5000 Forbes Avenue
+ * Pittsburgh, PA 15213-3890
+ * (412) 268-4387, fax: (412) 268-7395
+ * tech-transfer@andrew.cmu.edu
+ *
+ * 4. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by Computing Services
+ * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
+ *
+ * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
+ * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * $Id: pppd.h,v 1.96 2008/06/23 11:47:18 paulus Exp $
*/
/*
#define __PPPD_H__
#include <stdio.h> /* for FILE */
+#include <stdlib.h> /* for encrypt */
+#include <unistd.h> /* for setkey */
#include <limits.h> /* for NGROUPS_MAX */
#include <sys/param.h> /* for MAXPATHLEN and BSD4_4, if defined */
#include <sys/types.h> /* for u_int32_t, if defined */
#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 */
+#define MAXIFNAMELEN 32 /* max length of interface name; or use IFNAMSIZ, can we
+ always include net/if.h? */
+
+/*
+ * If PPP_DRV_NAME is not defined, use the default "ppp" as the device name.
+ * Where should PPP_DRV_NAME come from? Do we include it here?
+ */
+#if !defined(PPP_DRV_NAME)
+#define PPP_DRV_NAME "ppp"
+#endif /* !defined(PPP_DRV_NAME) */
/*
* Option descriptor structure.
enum opt_type type;
void *addr;
char *description;
- int flags;
+ unsigned int flags;
void *addr2;
int upper_limit;
int lower_limit;
#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_OR 0x400 /* for u32, OR in argument to value */
+#define OPT_INC 0x400 /* for o_int, increment value */
+#define OPT_A2OR 0x800 /* for o_bool, OR arg to *(u_char *)addr2 */
#define OPT_PRIV 0x1000 /* privileged option */
#define OPT_STATIC 0x2000 /* string option goes into static array */
+#define OPT_NOINCR 0x2000 /* for o_int, value mustn't be increased */
#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_HIDE 0x10000 /* for o_string, print value as ?????? */
-#define OPT_A2LIST 0x10000 /* for o_special, keep list of values */
-#define OPT_NOINCR 0x20000 /* value mustn't be increased */
+#define OPT_A2LIST 0x20000 /* for o_special, keep list of values */
+#define OPT_A2CLRB 0x20000 /* o_bool, clr val bits in *(u_char *)addr2 */
#define OPT_ZEROINF 0x40000 /* with OPT_NOINCR, 0 == infinity */
#define OPT_PRIO 0x80000 /* process option priorities for this option */
#define OPT_PRIOSUB 0x100000 /* subsidiary member of priority group */
#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_A2PRINTER 0x10000000 /* *addr2 printer_func to print option */
#define OPT_A2STRVAL 0x20000000 /* *addr2 points to current string value */
#define OPT_NOPRINT 0x40000000 /* don't print this option at all */
#define EPD_PHONENUM 5
typedef void (*notify_func) __P((void *, int));
+typedef void (*printer_func) __P((void *, char *, ...));
struct notifier {
struct notifier *next;
* Global variables.
*/
+extern int got_sigterm; /* SIGINT or SIGTERM was received */
extern int hungup; /* Physical layer has disconnected */
extern int ifunit; /* Interface unit number */
extern char ifname[]; /* Interface name */
extern char hostname[]; /* Our hostname */
extern u_char outpacket_buf[]; /* Buffer for outgoing packets */
+extern int devfd; /* fd of underlying device */
+extern int fd_ppp; /* fd for talking PPP */
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 auth_done[NUM_PPP]; /* Methods actually used for auth */
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 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 unsigned 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 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 int error_count; /* # of times error() has been called */
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 fd_devnull; /* fd open to /dev/null */
extern int listen_time; /* time to listen first (ms) */
+extern bool doing_multilink;
+extern bool multilink_master;
+extern bool bundle_eof;
+extern bool bundle_terminating;
+
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 *ip_up_notifier; /* IPCP has come up */
+extern struct notifier *ip_down_notifier; /* IPCP has gone down */
+extern struct notifier *ipv6_up_notifier; /* IPV6CP has come up */
+extern struct notifier *ipv6_down_notifier; /* IPV6CP has gone down */
extern struct notifier *auth_up_notifier; /* peer has authenticated */
extern struct notifier *link_down_notifier; /* link has gone down */
+extern struct notifier *fork_notifier; /* we are a new child process */
/* Values for do_callback and doing_callback */
#define CALLBACK_DIALIN 1 /* we are expecting the call back */
extern int default_device; /* Using /dev/tty or equivalent */
extern char devnam[MAXPATHLEN]; /* Device name */
extern int crtscts; /* Use hardware flow control */
+extern int stop_bits; /* Number of serial port stop bits */
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 bool lockflag; /* Create lock file to lock the serial dev */
extern bool nodetach; /* Don't detach from controlling tty */
+#ifdef SYSTEMD
+extern bool up_sdnotify; /* Notify systemd once link is up (implies nodetach) */
+#endif
extern bool updetach; /* Detach from controlling tty when link up */
+extern bool master_detach; /* Detach when multilink master without link */
extern char *initializer; /* Script to initialize physical link */
extern char *connect_script; /* Script to establish physical link */
extern char *disconnect_script; /* Script to disestablish physical link */
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 bool session_mgmt; /* Do session management (login records) */
extern char our_name[MAXNAMELEN];/* Our name for authentication purposes */
extern char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
extern bool explicit_remote;/* remote_name specified with remotename opt */
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 char req_ifname[MAXIFNAMELEN]; /* interface name 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 */
+extern int child_wait; /* # seconds to wait for children at end */
+
+#ifdef MAXOCTETS
+extern unsigned int maxoctets; /* Maximum octetes per session (in bytes) */
+extern int maxoctets_dir; /* Direction :
+ 0 - in+out (default)
+ 1 - in
+ 2 - out
+ 3 - max(in,out) */
+extern int maxoctets_timeout; /* Timeout for check of octets limit */
+#define PPP_OCTETS_DIRECTION_SUM 0
+#define PPP_OCTETS_DIRECTION_IN 1
+#define PPP_OCTETS_DIRECTION_OUT 2
+#define PPP_OCTETS_DIRECTION_MAXOVERAL 3
+/* same as previos, but little different on RADIUS side */
+#define PPP_OCTETS_DIRECTION_MAXSESSION 4
+#endif
#ifdef PPP_FILTER
extern struct bpf_program pass_filter; /* Filter for pkts to pass */
/* Has meaning only with MS-CHAP challenges */
#endif
+/* Values for auth_pending, auth_done */
+#define PAP_WITHPEER 0x1
+#define PAP_PEER 0x2
+#define CHAP_WITHPEER 0x4
+#define CHAP_PEER 0x8
+#define EAP_WITHPEER 0x10
+#define EAP_PEER 0x20
+
+/* Values for auth_done only */
+#define CHAP_MD5_WITHPEER 0x40
+#define CHAP_MD5_PEER 0x80
+#define CHAP_MS_SHIFT 8 /* LSB position for MS auths */
+#define CHAP_MS_WITHPEER 0x100
+#define CHAP_MS_PEER 0x200
+#define CHAP_MS2_WITHPEER 0x400
+#define CHAP_MS2_PEER 0x800
+
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 */
#define PHASE_TERMINATE 9
#define PHASE_DISCONNECT 10
#define PHASE_HOLDOFF 11
+#define PHASE_MASTER 12
/*
* The following struct gives the addresses of procedures to call
/* 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 *, ...)),
+ int (*printpkt) __P((u_char *pkt, int len, printer_func printer,
void *arg));
/* Process a received data packet */
void (*datainput) __P((int unit, u_char *pkt, int len));
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)
+/*
+ * This structure contains environment variables that are set or unset
+ * by the user.
+ */
+struct userenv {
+ struct userenv *ue_next;
+ char *ue_value; /* value (set only) */
+ bool ue_isset; /* 1 for set, 0 for unset */
+ bool ue_priv; /* from privileged source */
+ const char *ue_source; /* source name */
+ char ue_name[1]; /* variable name */
+};
-#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)
+extern struct userenv *userenv_list;
/*
* Prototypes.
/* 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 *));
+void record_child __P((int, char *, void (*) (void *), void *, int));
+pid_t safe_fork __P((int, int, int)); /* Fork & close stuff in child */
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));
+ void (*done)(void *), void *arg, int wait));
/* Run program prog with args in child */
void reopen_log __P((void)); /* (re)open the connection to syslog */
+void print_link_stats __P((void)); /* Print stats, if available */
+void reset_link_stats __P((int)); /* Reset (init) stats when link goes up */
void update_link_stats __P((int)); /* Get stats at link termination */
void script_setenv __P((char *, char *, int)); /* set script env var */
void script_unsetenv __P((char *)); /* unset script env var */
void add_notifier __P((struct notifier **, notify_func, void *));
void remove_notifier __P((struct notifier **, notify_func, void *));
void notify __P((struct notifier *, int));
+int ppp_send_config __P((int, int, u_int32_t, int, int));
+int ppp_recv_config __P((int, int, u_int32_t, int, int));
+const char *protocol_name __P((int));
+void remove_pidfiles __P((void));
+void lock_db __P((void));
+void unlock_db __P((void));
/* Procedures exported from tty.c. */
void tty_init __P((void));
/* Procedures exported from utils.c. */
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 */
+void print_string __P((char *, int, printer_func, void *));
+ /* Format a string for output */
int slprintf __P((char *, int, char *, ...)); /* sprintf++ */
int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */
size_t strlcpy __P((char *, const char *, size_t)); /* safe strcpy */
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 init_pr_log __P((const 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 */
+ssize_t complete_read __P((int, void *, size_t));
+ /* read a complete buffer */
/* Procedures exported from auth.c */
void link_required __P((int)); /* we are starting to use the link */
+void start_link __P((int)); /* bring the link up now */
void link_terminated __P((int)); /* we are finished with the link */
void link_down __P((int)); /* the LCP layer has left the Opened state */
+void upper_layers_down __P((int));/* take all NCPs down */
void link_established __P((int)); /* the link is up; authenticate now */
-void start_networks __P((void)); /* start all the network control protos */
+void start_networks __P((int)); /* start all the network control protos */
+void continue_networks __P((int)); /* start network [ip, etc] control protos */
void np_up __P((int, int)); /* a network protocol has come up */
void np_down __P((int, int)); /* a network protocol has gone down */
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, char *, int));
+void auth_peer_success __P((int, 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));
+void auth_withpeer_success __P((int, int, int));
/* we successfully authenticated ourselves */
void auth_check_options __P((void));
/* check authentication options supplied */
/* Check peer-supplied username/password */
int get_secret __P((int, char *, char *, char *, int *, int));
/* get "secret" for chap */
+int get_srp_secret __P((int unit, char *client, char *server, char *secret,
+ int am_server));
int auth_ip_addr __P((int, u_int32_t));
/* check if IP address is authorized */
+int auth_number __P((void)); /* check if remote number is authorized */
int bad_ip_adrs __P((u_int32_t));
/* check if IP address is unreasonable */
int loop_frame __P((unsigned char *, int)); /* should we bring link up? */
/* Procedures exported from multilink.c */
+#ifdef HAVE_MULTILINK
void mp_check_options __P((void)); /* Check multilink-related options */
int mp_join_bundle __P((void)); /* join our link to an appropriate bundle */
+void mp_exit_bundle __P((void)); /* have disconnected our link from bundle */
+void mp_bundle_terminated __P((void));
char *epdisc_to_str __P((struct epdisc *)); /* string from endpoint discrim. */
int str_to_epdisc __P((struct epdisc *, char *)); /* endpt disc. from str */
+#else
+#define mp_bundle_terminated() /* nothing */
+#define mp_exit_bundle() /* nothing */
+#define doing_multilink 0
+#define multilink_master 0
+#endif
/* Procedures exported from sys-*.c */
void sys_init __P((void)); /* Do system-dependent initialization */
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 destroy_bundle __P((void)); /* Tell driver to destroy 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 */
int get_ppp_stats __P((int, struct pppd_stats *));
/* Return link statistics */
void netif_set_mtu __P((int, int)); /* Set PPP interface MTU */
+int netif_get_mtu __P((int)); /* Get 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 */
int cifaddr __P((int, u_int32_t, u_int32_t));
/* Reset i/f IP addresses */
#ifdef INET6
+int ether_to_eui64(eui64_t *p_eui64); /* convert eth0 hw address to EUI64 */
+int sif6up __P((int)); /* Configure i/f up for IPv6 */
+int sif6down __P((int)); /* Configure i/f down for IPv6 */
int sif6addr __P((int, eui64_t, eui64_t));
/* Configure IPv6 addresses for i/f */
int cif6addr __P((int, eui64_t, eui64_t));
/* Create default route through i/f */
int cifdefaultroute __P((int, u_int32_t, u_int32_t));
/* Delete default route through i/f */
+#ifdef INET6
+int sif6defaultroute __P((int, eui64_t, eui64_t));
+ /* Create default IPv6 route through i/f */
+int cif6defaultroute __P((int, eui64_t, eui64_t));
+ /* Delete default IPv6 route through i/f */
+#endif
int sifproxyarp __P((int, u_int32_t));
/* Add proxy ARP entry for peer */
int cifproxyarp __P((int, u_int32_t));
#endif
int get_if_hwaddr __P((u_char *addr, char *name));
char *get_first_ethernet __P((void));
+int get_time __P((struct timeval *));
+ /* Get current time, monotonic if possible. */
/* Procedures exported from options.c */
int setipaddr __P((char *, char **, int)); /* Set local/remote ip addresses */
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 *));
+void print_options __P((printer_func, void *));
/* print out values of all options */
int parse_dotted_ip __P((char *, u_int32_t *));
extern void (*ip_up_hook) __P((void));
extern void (*ip_down_hook) __P((void));
extern void (*ip_choose_hook) __P((u_int32_t *));
+extern void (*ipv6_up_hook) __P((void));
+extern void (*ipv6_down_hook) __P((void));
extern int (*chap_check_hook) __P((void));
extern int (*chap_passwd_hook) __P((char *user, char *passwd));
+extern void (*multilink_join_hook) __P((void));
+
+/* 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.
#define BCOPY(s, d, l) memcpy(d, s, l)
#define BZERO(s, n) memset(s, 0, n)
+#define BCMP(s1, s2, l) memcmp(s1, s2, l)
#define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
#define EXIT_LOOPBACK 17
#define EXIT_INIT_FAILED 18
#define EXIT_AUTH_TOPEER_FAILED 19
+#ifdef MAXOCTETS
+#define EXIT_TRAFFIC_LIMIT 20
+#endif
+#define EXIT_CNID_AUTH_FAILED 21
/*
* Debug macros. Slightly useful for finding bugs in pppd, not particularly
#define MAX(a, b) ((a) > (b)? (a): (b))
#endif
+#ifndef offsetof
+#define offsetof(type, member) ((size_t) &((type *)0)->member)
+#endif
+
#endif /* __PPP_H__ */
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