X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fpppd.h;h=35cf85bf2ca51ef7fca09689c3a5078de14b2276;hp=7b15c39577ae56e80919893173c64692ab9f90df;hb=857e121025571b1c1173c2e70053bde804a46a0d;hpb=00c0882b073af34555603c46a12b48e5d08df135 diff --git a/pppd/pppd.h b/pppd/pppd.h index 7b15c39..35cf85b 100644 --- a/pppd/pppd.h +++ b/pppd/pppd.h @@ -16,7 +16,7 @@ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. * - * $Id: pppd.h,v 1.56 2000/07/06 11:17:03 paulus Exp $ + * $Id: pppd.h,v 1.76 2002/10/27 12:30:54 fcusack Exp $ */ /* @@ -32,6 +32,7 @@ #include /* for u_int32_t, if defined */ #include /* for struct timeval */ #include +#include "patchlevel.h" #if defined(__STDC__) #include @@ -70,6 +71,7 @@ enum opt_type { o_int, o_uint32, o_string, + o_wild }; typedef struct { @@ -77,10 +79,14 @@ typedef struct { enum opt_type type; void *addr; char *description; - int flags; + unsigned int flags; void *addr2; int upper_limit; int lower_limit; + const char *source; + short int priority; + short int winner; + void *addr3; } option_t; /* Values for flags */ @@ -89,26 +95,41 @@ typedef struct { #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_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_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_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_SEENIT 0x10000000 /* have seen this option already */ +#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_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 @@ -129,6 +150,8 @@ struct permitted_ip { 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. */ @@ -175,6 +198,7 @@ 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 */ @@ -183,23 +207,29 @@ extern GIDSET_TYPE groups[NGROUPS_MAX]; /* groups the user is in */ 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_to_file; /* log_to_fd is a file */ -extern bool log_to_specific_fd; /* log_to_fd was specified by user */ +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 int listen_time; /* time to listen first (ms) */ +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 */ @@ -253,6 +283,24 @@ 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 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 */ @@ -264,9 +312,26 @@ extern bool ms_lanman; /* Use LanMan password instead of NT */ /* 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 +/* Values for auth_done only */ +#define CHAP_MD5_WITHPEER 0x10 +#define CHAP_MD5_PEER 0x20 +#ifdef CHAPMS +#define CHAP_MS_SHIFT 6 /* LSB position for MS auths */ +#define CHAP_MS_WITHPEER 0x40 +#define CHAP_MS_PEER 0x80 +#define CHAP_MS2_WITHPEER 0x100 +#define CHAP_MS2_PEER 0x200 +#endif + 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. @@ -325,6 +390,52 @@ struct protent { /* 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. */ @@ -335,8 +446,8 @@ 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 *)); @@ -356,12 +467,6 @@ void notify __P((struct notifier *, int)); /* Procedures exported from tty.c. */ void tty_init __P((void)); -void tty_device_check __P((void)); -void tty_check_options __P((void)); -int connect_tty __P((void)); -void disconnect_tty __P((void)); -void tty_close_fds __P((void)); -void cleanup_tty __P((void)); /* Procedures exported from utils.c. */ void log_packet __P((u_char *, int, char *, int)); @@ -378,23 +483,29 @@ 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) */ +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 link_terminated __P((int)); /* we are finished with the link */ void link_down __P((int)); /* the LCP layer has left the Opened state */ 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 */ @@ -405,6 +516,7 @@ int get_secret __P((int, char *, char *, char *, int *, int)); /* get "secret" for chap */ 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 */ @@ -431,9 +543,10 @@ void sys_close __P((void)); /* Clean up in a child before execing */ 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 */ @@ -448,11 +561,11 @@ void add_fd __P((int)); /* Add fd to set to wait for */ 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 */ @@ -463,6 +576,8 @@ int get_idle_time __P((int, struct ppp_idle *)); /* 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 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 */ @@ -507,6 +622,7 @@ 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, @@ -523,25 +639,13 @@ void option_error __P((char *fmt, ...)); int int_option __P((char *, int *)); /* Simplified number_option for decimal ints */ void add_options __P((option_t *)); /* Add extra 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. - */ - -struct option_info { - int priv; /* was value set by sysadmin? */ - char *source; /* where option came from */ -}; +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 */ -extern struct option_info devnam_info; -extern struct option_info initializer_info; -extern struct option_info connect_script_info; -extern struct option_info disconnect_script_info; -extern struct option_info welcomer_info; -extern struct option_info ptycommand_info; +int parse_dotted_ip __P((char *, u_int32_t *)); /* * Hooks to enable plugins to change various things. @@ -555,10 +659,18 @@ extern int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp, 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. * Pointer is advanced; we assume that both arguments @@ -602,7 +714,7 @@ extern void (*ip_choose_hook) __P((u_int32_t *)); * 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) @@ -641,6 +753,10 @@ extern void (*ip_choose_hook) __P((u_int32_t *)); #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 @@ -735,4 +851,8 @@ extern void (*ip_choose_hook) __P((u_int32_t *)); #define MAX(a, b) ((a) > (b)? (a): (b)) #endif +#ifndef offsetof +#define offsetof(type, member) ((size_t) &((type *)0)->member) +#endif + #endif /* __PPP_H__ */