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freebsd-skq/usr.sbin/ppp/bundle.h

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Create `struct bundle' - the top level control structure. This structure will eventually contain a list of NCPs (currently only IPCP is supported) and a list of physical `struct link's. It will also derive from a struct link itself. Make ModemTimeout() static - it's way to dangerous to be called from outside ! Bump version to 1.9. Our first MP release should be 2.0.
1998-02-02 19:32:16 +00:00
/*-
* Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
$Id$ -> $FreeBSD$
1999-08-28 01:35:59 +00:00
* $FreeBSD$
Create `struct bundle' - the top level control structure. This structure will eventually contain a list of NCPs (currently only IPCP is supported) and a list of physical `struct link's. It will also derive from a struct link itself. Make ModemTimeout() static - it's way to dangerous to be called from outside ! Bump version to 1.9. Our first MP release should be 2.0.
1998-02-02 19:32:16 +00:00
*/
o Hook the FSMs into our bundle. o The FSM layering is now more sane. o Move a lot of the NCP stuff into our ipcpstate rather than having it in the bundle, including control of the configured IP addresses. We don't need hacks like the global `linkup' variable any more as the FSM decides when our ppp.link* files get run. This is going to eventually be configurable based on FSM events anyway. o Fix a few inconsistencies when both sides require authentication. o We now have "Ppp..." and "PPp" prompts, reflecting authentication and network phase. We don't print loads of spurious prompts as we change phases any more. o Our phase is part of the bundle now. o Fix a bug where the FSM wasn't calling LayerFinish. o Close the FSM down correctly with a signal rather than slamming it down as if the line was dropped (the undocumented ``down'' command is still available though). o Remove the forgotten `tunno' variable and fix references to it.
1998-02-07 20:50:08 +00:00
#define PHASE_DEAD 0 /* Link is dead */
#define PHASE_ESTABLISH 1 /* Establishing link */
#define PHASE_AUTHENTICATE 2 /* Being authenticated */
#define PHASE_NETWORK 3 /* We're alive ! */
#define PHASE_TERMINATE 4 /* Terminating link */
o Move the accept/deny/disable/enable globals either to the bundle (non-negotiated vars) or to their respective IPCP, LCP or CCP. o Enable rolling throughput statistics by default. o Remove the `display' command. These values now appear in `show bundle', `show ipcp', `show ccp' and `show lcp'. o Initialise auth name & key at bundle create time (oops). o Rename pppd-deflate (the id-24 hack) to deflate24. o Don't send both a REJ and a NAK to an IPCP or LCP REQ. Favour the REJ (already done at the CCP level). o Recurse in datalink_UpdateSet() when we change state, otherwise we end up setting no descriptors and getting jammed in the imminent select() instead of doing the dial/login/hangup. o Display our CHAP encryption method despite being built with DES. o Display VJ as not negotiated in ``show ipcp'' when necessary.
1998-04-16 00:26:21 +00:00
/* cfg.opt bit settings */
Add ``enable proxyall'' support. This adds proxy ARP entries for every machine on every class C or smaller subnet that we route to. Add ``set {send,recv}pipe'' for controlling our socket buffer sizes. Mention the IP number with the problem in a few error messages. All submitted by: Craig Leres <leres@ee.lbl.gov> Modified slightly by: me
1998-10-26 19:07:39 +00:00
#define OPT_IDCHECK 0x0001
Shuffle the iface-alias option so that's in alphabetical order like the rest of the options.
1998-10-26 19:07:42 +00:00
#define OPT_IFACEALIAS 0x0002
Introduce the ``keep-session'' option. Refer to the man page for details. This allows MP over non-tty devices where the original ppp process must not exit (such as sshd-spawned ppp sessions).
1999-06-02 00:46:55 +00:00
#define OPT_KEEPSESSION 0x0004
#define OPT_LOOPBACK 0x0008
#define OPT_PASSWDAUTH 0x0010
#define OPT_PROXY 0x0020
#define OPT_PROXYALL 0x0040
#define OPT_SROUTES 0x0080
#define OPT_THROUGHPUT 0x0100
#define OPT_UTMP 0x0200
o Move the accept/deny/disable/enable globals either to the bundle (non-negotiated vars) or to their respective IPCP, LCP or CCP. o Enable rolling throughput statistics by default. o Remove the `display' command. These values now appear in `show bundle', `show ipcp', `show ccp' and `show lcp'. o Initialise auth name & key at bundle create time (oops). o Rename pppd-deflate (the id-24 hack) to deflate24. o Don't send both a REJ and a NAK to an IPCP or LCP REQ. Favour the REJ (already done at the CCP level). o Recurse in datalink_UpdateSet() when we change state, otherwise we end up setting no descriptors and getting jammed in the imminent select() instead of doing the dial/login/hangup. o Display our CHAP encryption method despite being built with DES. o Display VJ as not negotiated in ``show ipcp'' when necessary.
1998-04-16 00:26:21 +00:00
Negotiate MRRU, SHORTSEQ and ENDDISC. ENDDISC doesn't imply multilink ('cos I've seen my ISP REQ it without multilink). Setting MRRU is ifdef'd out until it's debugged and we can merge -direct links with other running programs. Fix MTU setting.
1998-04-23 03:23:03 +00:00
#define MAX_ENDDISC_CLASS 5
o Move the accept/deny/disable/enable globals either to the bundle (non-negotiated vars) or to their respective IPCP, LCP or CCP. o Enable rolling throughput statistics by default. o Remove the `display' command. These values now appear in `show bundle', `show ipcp', `show ccp' and `show lcp'. o Initialise auth name & key at bundle create time (oops). o Rename pppd-deflate (the id-24 hack) to deflate24. o Don't send both a REJ and a NAK to an IPCP or LCP REQ. Favour the REJ (already done at the CCP level). o Recurse in datalink_UpdateSet() when we change state, otherwise we end up setting no descriptors and getting jammed in the imminent select() instead of doing the dial/login/hangup. o Display our CHAP encryption method despite being built with DES. o Display VJ as not negotiated in ``show ipcp'' when necessary.
1998-04-16 00:26:21 +00:00
#define Enabled(b, o) ((b)->cfg.opt & (o))
Move filter sets into struct bundle.
1998-03-16 22:52:54 +00:00
o Obsolete the undocumented ``set weight'' command. o If we're using RADIUS and the RADIUS mtu is less than our peers mru/mrru, reduce our mtu to this value for NetBSD too. o Make struct throughput's sample period dynamic and tweak the ppp version number to reflect the extra stuff being passed through the local domain socket as a result (MP mode). o Measure the current throughput based on the number of samples actually taken rather than on the full sample period. o Keep the throughput statisics persistent while being passed to another ppp invocation through the local domain socket. o When showing throughput statistics after the timer has stopped, use the stopped time for overall calculations, not the current time. Also show the stopped time and how long the current throughput has been sampled for. o Use time() consistently in throughput.c o Tighten up the ``show bundle'' output. o Introduce the ``set bandwidth'' command. o Rewrite the ``set autoload'' command. It now takes three arguments and works based on a rolling bundle throughput average compared against the theoretical bundle bandwidth over a given period (read: it's now functional).
1999-08-05 10:32:16 +00:00
/* AutoAdjust() values */
#define AUTO_UP 1
#define AUTO_DOWN 2
o Transfer file descriptors using {send,recv}msg & SCM_RIGHTS, using the scatter/gather array to transfer the link information. The whole link is now passed in one message. This is far better than the two `/bin/cat' processes per additional link :-) I remember years ago thinking that file descriptor transferral would be a really amazing facility ! Suggested by: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> and: Eivind Eklund <eivind@yes.no>
1998-05-02 21:57:50 +00:00
struct sockaddr_un;
Create struct datalink. This is a type of physical link that can chat and talk LCP & CCP. A bundle contains a list of these (only one in the list for the moment). The datalink is a type of descriptor, and dials, enters LCP (& does CCP), kicks the bundle when its FSMs do something interesting and does the hangup chat script on the way down. It also handles redials and reconnects. There are lots of loose ends, and probably lots of bugs, but the data structures are getting there !
1998-02-16 00:01:12 +00:00
struct datalink;
Move pppVars.physical into the bundle (for the moment).
1998-02-06 02:23:48 +00:00
struct physical;
Isolate fsm callback functions Derive {lcp,ipcp,ccp}state structures from struct fsm where convenient. Create bundle_Down() and remove LcpDown()
1998-02-06 02:24:29 +00:00
struct link;
Deglobalise `struct prompt': o Our diagnostic socket has its password set in the `set socket' line only (not in ppp.secret). o Passwords are per server socket (*VarAuthKey are gone) o Authority is per prompt (VarLocalAuth is gone). o Local logging is per prompt. o Add a `show who' command to see who's connected. No identd routine - just a `where the connection came from' display. o SIGUSR1 is disabled for now - we have no way of choosing a password for the socket created :-( Prompts are attached as a list of `struct descriptor's in struct bundle, and serviced under the bundles descriptor service routines. Ultimately, everything should be done like this. Cosmetic: o alphabeticalise SRCS in Makefile. o Add a few comments in command.h TODO: Start checking that we don't overflow the descriptor sets in select() now that we can have any number of descriptors.
1998-04-03 19:26:02 +00:00
struct server;
struct prompt;
Solve the ``first connection'' problem that occurs on demand-dial links with dynamic IP numbers where the program that causes the dial bind()s to an interface address that is subsequently changed after ppp negotiation. The problem is defeated by adding negotiated addresses to the tun interface as additional alias addresses and providing a set of ``iface'' commands for managing the interface. Libalias is also required (and what a name clash!) - it happily IP-aliases the address so that the source is that of the primary (negotiated) interface and un-IP-aliases it on the way back. An ``enable iface-alias'' is done implicitly by the -alias command line switch. If -alias isn't given, iface-aliasing is disabled by default and can't be enabled 'till an ``alias enable yes'' is done. ``alias enable no'' silently disables iface-alias. So, for dynamic-IP-type-connections, running ``ppp -alias -auto blah'' will work for the first connection, although existing bindings will not survive a disconnect/connect as the TCP peer will be trying to send to the old IP address - the packets won't route. It's now a lot easier to add IPXCP to ppp with minor updates to the new iface.[ch] (if anyone ever gets 'round to it). It's also now possible to manually add interface aliases with something like ``iface add 1.2.3.4/24 5.6.7.8''. This allows multi-homed ppp links :-)
1998-10-22 02:32:50 +00:00
struct iface;
Move pppVars.physical into the bundle (for the moment).
1998-02-06 02:23:48 +00:00
Create `struct bundle' - the top level control structure. This structure will eventually contain a list of NCPs (currently only IPCP is supported) and a list of physical `struct link's. It will also derive from a struct link itself. Make ModemTimeout() static - it's way to dangerous to be called from outside ! Bump version to 1.9. Our first MP release should be 2.0.
1998-02-02 19:32:16 +00:00
struct bundle {
Make struct bundle into a sort of `struct descriptor'. It does the fdsets/reads/writes for each of it's datalinks.
1998-03-20 19:48:28 +00:00
struct descriptor desc; /* really all our datalinks */
Categorize the fields in struct bundle, and make the tunnel device speed available in ``show bundle''.
1998-05-06 23:50:25 +00:00
int unit; /* The device/interface unit number */
struct {
char Name[20]; /* The /dev/XXXX name */
int fd; /* The /dev/XXXX descriptor */
} dev;
o Obsolete the undocumented ``set weight'' command. o If we're using RADIUS and the RADIUS mtu is less than our peers mru/mrru, reduce our mtu to this value for NetBSD too. o Make struct throughput's sample period dynamic and tweak the ppp version number to reflect the extra stuff being passed through the local domain socket as a result (MP mode). o Measure the current throughput based on the number of samples actually taken rather than on the full sample period. o Keep the throughput statisics persistent while being passed to another ppp invocation through the local domain socket. o When showing throughput statistics after the timer has stopped, use the stopped time for overall calculations, not the current time. Also show the stopped time and how long the current throughput has been sampled for. o Use time() consistently in throughput.c o Tighten up the ``show bundle'' output. o Introduce the ``set bandwidth'' command. o Rewrite the ``set autoload'' command. It now takes three arguments and works based on a rolling bundle throughput average compared against the theoretical bundle bandwidth over a given period (read: it's now functional).
1999-08-05 10:32:16 +00:00
u_long bandwidth; /* struct tuninfo speed */
Solve the ``first connection'' problem that occurs on demand-dial links with dynamic IP numbers where the program that causes the dial bind()s to an interface address that is subsequently changed after ppp negotiation. The problem is defeated by adding negotiated addresses to the tun interface as additional alias addresses and providing a set of ``iface'' commands for managing the interface. Libalias is also required (and what a name clash!) - it happily IP-aliases the address so that the source is that of the primary (negotiated) interface and un-IP-aliases it on the way back. An ``enable iface-alias'' is done implicitly by the -alias command line switch. If -alias isn't given, iface-aliasing is disabled by default and can't be enabled 'till an ``alias enable yes'' is done. ``alias enable no'' silently disables iface-alias. So, for dynamic-IP-type-connections, running ``ppp -alias -auto blah'' will work for the first connection, although existing bindings will not survive a disconnect/connect as the TCP peer will be trying to send to the old IP address - the packets won't route. It's now a lot easier to add IPXCP to ppp with minor updates to the new iface.[ch] (if anyone ever gets 'round to it). It's also now possible to manually add interface aliases with something like ``iface add 1.2.3.4/24 5.6.7.8''. This allows multi-homed ppp links :-)
1998-10-22 02:32:50 +00:00
struct iface *iface; /* Interface information */
Categorize the fields in struct bundle, and make the tunnel device speed available in ``show bundle''.
1998-05-06 23:50:25 +00:00
Comment bundle.h
1998-02-04 01:03:19 +00:00
int routing_seq; /* The current routing sequence number */
o Hook the FSMs into our bundle. o The FSM layering is now more sane. o Move a lot of the NCP stuff into our ipcpstate rather than having it in the bundle, including control of the configured IP addresses. We don't need hacks like the global `linkup' variable any more as the FSM decides when our ppp.link* files get run. This is going to eventually be configurable based on FSM events anyway. o Fix a few inconsistencies when both sides require authentication. o We now have "Ppp..." and "PPp" prompts, reflecting authentication and network phase. We don't print loads of spurious prompts as we change phases any more. o Our phase is part of the bundle now. o Fix a bug where the FSM wasn't calling LayerFinish. o Close the FSM down correctly with a signal rather than slamming it down as if the line was dropped (the undocumented ``down'' command is still available though). o Remove the forgotten `tunno' variable and fix references to it.
1998-02-07 20:50:08 +00:00
u_int phase; /* Curent phase */
o Maintain a link-type mask for open datalinks as well as for all datalinks in a bundle. Ppp now deals correctly with link types that are changed while open o When changing the type of the last AUTO link, only clear the interface if we're not in PHASE_NETWORK. This allows us to switch to -ddial mode while we have a connection without suddenly unexpectedly throttling ourselves by clearing the interface configuration. Problem area noted by: Aaron Jeremias Luz <aaron@csh.rit.edu>
1998-06-12 17:45:10 +00:00
struct {
int all; /* Union of all physical::type's */
int open; /* Union of all open physical::type's */
} phys_type;
Create `struct bundle' - the top level control structure. This structure will eventually contain a list of NCPs (currently only IPCP is supported) and a list of physical `struct link's. It will also derive from a struct link itself. Make ModemTimeout() static - it's way to dangerous to be called from outside ! Bump version to 1.9. Our first MP release should be 2.0.
1998-02-02 19:32:16 +00:00
Move `CleaningUp' into struct bundle.
1998-03-16 22:53:15 +00:00
unsigned CleaningUp : 1; /* Going to exit.... */
o Add the -foreground switch. This switch behaves like -background except that ppp stays in the foreground. o Add the -quiet switch to quieten ppps startup o Add the -nat flag and discourage the use of the -alias flag. Both do the same thing. o Correct some nat usage strings. o Change the internal ``alias'' command to ``nat''.
1999-08-19 18:15:52 +00:00
unsigned NatEnabled : 1; /* Are we using libalias ? */
Move `CleaningUp' into struct bundle.
1998-03-16 22:53:15 +00:00
Create struct fsm_parent. FSMs are created with one of these, and the FSM passes subsequent events to them. The datalink now hides its CCP from the bundle layer.
1998-02-27 01:22:39 +00:00
struct fsm_parent fsm; /* Our callback functions */
Create struct datalink. This is a type of physical link that can chat and talk LCP & CCP. A bundle contains a list of these (only one in the list for the moment). The datalink is a type of descriptor, and dials, enters LCP (& does CCP), kicks the bundle when its FSMs do something interesting and does the hangup chat script on the way down. It also handles redials and reconnects. There are lots of loose ends, and probably lots of bugs, but the data structures are getting there !
1998-02-16 00:01:12 +00:00
struct datalink *links; /* Our data links */
Move the idle timer into struct bundle. There's no link-level idle timer for the moment.
1998-03-09 19:26:41 +00:00
Implement a minimum idle time value as an optional second argument to ``set timeout''. This is useful for situations where your minimum call charge is (say) 5 minutes (like mine is)
1999-08-17 17:22:46 +00:00
time_t upat; /* When the link came up */
Move the idle timer into struct bundle. There's no link-level idle timer for the moment.
1998-03-09 19:26:41 +00:00
struct {
Implement a minimum idle time value as an optional second argument to ``set timeout''. This is useful for situations where your minimum call charge is (say) 5 minutes (like mine is)
1999-08-17 17:22:46 +00:00
struct {
int timeout; /* NCP Idle timeout value */
int min_timeout; /* Don't idle out before this */
} idle;
Move authname and authkey into struct bundle and only allow their alteration in PHASE_DEAD. Remove redundant pppConfs array element.
1998-04-03 19:24:49 +00:00
struct {
Initial RADIUS support (using libradius). See the man page for details. Compiling with -DNORADIUS (the default for `release') removes support. TODO: The functionality in libradius::rad_send_request() needs to be supplied as a set of routines so that ppp doesn't have to wait indefinitely for the radius server(s). Instead, we need to get a descriptor back, select() on the descriptor, and ask libradius to service it when necessary. For now, ppp blocks SIGALRM while in rad_send_request(), so it misses PAP/CHAP retries & timeouts if they occur. Only PAP is functional. When CHAP is attempted, libradius complains that no User-Password has been specified... rfc2138 says that it *mustn't* be used for CHAP :-( Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
char name[AUTHLEN]; /* PAP/CHAP system name */
char key[AUTHLEN]; /* PAP/CHAP key */
Move authname and authkey into struct bundle and only allow their alteration in PHASE_DEAD. Remove redundant pppConfs array element.
1998-04-03 19:24:49 +00:00
} auth;
o Move the accept/deny/disable/enable globals either to the bundle (non-negotiated vars) or to their respective IPCP, LCP or CCP. o Enable rolling throughput statistics by default. o Remove the `display' command. These values now appear in `show bundle', `show ipcp', `show ccp' and `show lcp'. o Initialise auth name & key at bundle create time (oops). o Rename pppd-deflate (the id-24 hack) to deflate24. o Don't send both a REJ and a NAK to an IPCP or LCP REQ. Favour the REJ (already done at the CCP level). o Recurse in datalink_UpdateSet() when we change state, otherwise we end up setting no descriptors and getting jammed in the imminent select() instead of doing the dial/login/hangup. o Display our CHAP encryption method despite being built with DES. o Display VJ as not negotiated in ``show ipcp'' when necessary.
1998-04-16 00:26:21 +00:00
unsigned opt; /* Uses OPT_ bits from above */
Negotiate MRRU, SHORTSEQ and ENDDISC. ENDDISC doesn't imply multilink ('cos I've seen my ISP REQ it without multilink). Setting MRRU is ifdef'd out until it's debugged and we can merge -direct links with other running programs. Fix MTU setting.
1998-04-23 03:23:03 +00:00
char label[50]; /* last thing `load'ed */
u_short mtu; /* Interface mtu */
o Add `set autoload'. You can now set the minimum and maximum thresholds (in terms of queued packets for a period of time) where -auto links will be brought up and down. By default, all auto links come up when we reach NETWORK phase and never go down. o Display current autoload state in `show bundle'. o Disable the idle timer as soon as it's called. o Disable the idle and autoload timers when exiting (in case we're abending).
1998-05-21 01:13:32 +00:00
If we've got a full output buffer queue and cannot send anything for two mintues (see ``set choked'' and ``show bundle''), nuke the ip, mp and link level buffer queues. This should fix problems where ``ppp -auto'' seems to stop responding after failing to connect to the peer a few times.
1998-08-25 17:48:43 +00:00
struct {
Initial RADIUS support (using libradius). See the man page for details. Compiling with -DNORADIUS (the default for `release') removes support. TODO: The functionality in libradius::rad_send_request() needs to be supplied as a set of routines so that ppp doesn't have to wait indefinitely for the radius server(s). Instead, we need to get a descriptor back, select() on the descriptor, and ask libradius to service it when necessary. For now, ppp blocks SIGALRM while in rad_send_request(), so it misses PAP/CHAP retries & timeouts if they occur. Only PAP is functional. When CHAP is attempted, libradius complains that no User-Password has been specified... rfc2138 says that it *mustn't* be used for CHAP :-( Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
int timeout; /* How long to leave the output queue choked */
If we've got a full output buffer queue and cannot send anything for two mintues (see ``set choked'' and ``show bundle''), nuke the ip, mp and link level buffer queues. This should fix problems where ``ppp -auto'' seems to stop responding after failing to connect to the peer a few times.
1998-08-25 17:48:43 +00:00
} choked;
Move the idle timer into struct bundle. There's no link-level idle timer for the moment.
1998-03-09 19:26:41 +00:00
} cfg;
Move the IPCP into struct bundle.
1998-03-13 21:07:46 +00:00
struct {
struct ipcp ipcp; /* Our IPCP FSM */
o Move struct lcp and struct ccp into struct link. o Remove bundle2lcp(), bundle2ccp() and bundle2link(). They're too resource-hungry and we have `owner pointers' to do their job. o Make our FSM understand LCPs that are always ST_OPENED (with a minimum code that != 1). o Send FSM code rejects for invalid codes. o Make our bundle fsm_parent deal with multiple links. o Make timer diagnostics pretty and allow access via ~t in `term' mode (not just when logging debug) and `show timers'. Only show timers every second in debug mode, otherwise we get too many diagnostics to be useful (we probably still do). Also, don't restrict ~m in term mode to depend on debug logging. o Rationalise our bundles' phases. o Create struct mp (multilink protocol). This is both an NCP and a type of struct link. It feeds off other NCPs for output, passing fragmented packets into the queues of available datalinks. It also gets PROTO_MP input, reassembles the fragments into ppp frames, and passes them back to the HDLC layer that the fragments were passed from. ** It's not yet possible to enter multilink mode :-( ** o Add `set weight' (requires context) for deciding on a links weighting in multilink mode. Weighting is simplistic (and probably badly implemented) for now. o Remove the function pointers in struct link. They ended up only applying to physical links. o Configure our tun device with an MTU equal to the MRU from struct mp's LCP and a speed equal to the sum of our link speeds. o `show {lcp,ccp,proto}' and `set deflate' now have optional context and use ChooseLink() to decide on which `struct link' to use. This allows behaviour as before when in non-multilink mode, and allows access to the MP logical link in multilink mode. o Ignore reconnect and redial values when in -direct mode and when cleaning up. Always redial when in -ddial or -dedicated mode (unless cleaning up). o Tell our links to `staydown' when we close them due to a signal. o Remove remaining `#ifdef SIGALRM's (ppp doesn't function without alarms). o Don't bother strdup()ing our physical link name. o Various other cosmetic changes.
1998-04-03 19:21:56 +00:00
struct mp mp; /* Our MP */
Move the IPCP into struct bundle.
1998-03-13 21:07:46 +00:00
} ncp;
Move filter sets into struct bundle.
1998-03-16 22:52:54 +00:00
struct {
Initial RADIUS support (using libradius). See the man page for details. Compiling with -DNORADIUS (the default for `release') removes support. TODO: The functionality in libradius::rad_send_request() needs to be supplied as a set of routines so that ppp doesn't have to wait indefinitely for the radius server(s). Instead, we need to get a descriptor back, select() on the descriptor, and ask libradius to service it when necessary. For now, ppp blocks SIGALRM while in rad_send_request(), so it misses PAP/CHAP retries & timeouts if they occur. Only PAP is functional. When CHAP is attempted, libradius complains that no User-Password has been specified... rfc2138 says that it *mustn't* be used for CHAP :-( Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
struct filter in; /* incoming packet filter */
struct filter out; /* outgoing packet filter */
struct filter dial; /* dial-out packet filter */
struct filter alive; /* keep-alive packet filter */
Move filter sets into struct bundle.
1998-03-16 22:52:54 +00:00
} filter;
Display the correct amount of remaining time in `show time'.
1998-03-18 23:15:31 +00:00
struct {
Initial RADIUS support (using libradius). See the man page for details. Compiling with -DNORADIUS (the default for `release') removes support. TODO: The functionality in libradius::rad_send_request() needs to be supplied as a set of routines so that ppp doesn't have to wait indefinitely for the radius server(s). Instead, we need to get a descriptor back, select() on the descriptor, and ask libradius to service it when necessary. For now, ppp blocks SIGALRM while in rad_send_request(), so it misses PAP/CHAP retries & timeouts if they occur. Only PAP is functional. When CHAP is attempted, libradius complains that no User-Password has been specified... rfc2138 says that it *mustn't* be used for CHAP :-( Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
struct pppTimer timer; /* timeout after cfg.idle_timeout */
Display the correct amount of remaining time in `show time'.
1998-03-18 23:15:31 +00:00
time_t done;
} idle;
Tidy up the parent notification stuff for -background mode. Remove extraneous extern decls of tun_{in,out} and netfd.
1998-03-25 18:38:59 +00:00
struct {
Initial RADIUS support (using libradius). See the man page for details. Compiling with -DNORADIUS (the default for `release') removes support. TODO: The functionality in libradius::rad_send_request() needs to be supplied as a set of routines so that ppp doesn't have to wait indefinitely for the radius server(s). Instead, we need to get a descriptor back, select() on the descriptor, and ask libradius to service it when necessary. For now, ppp blocks SIGALRM while in rad_send_request(), so it misses PAP/CHAP retries & timeouts if they occur. Only PAP is functional. When CHAP is attempted, libradius complains that no User-Password has been specified... rfc2138 says that it *mustn't* be used for CHAP :-( Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
int fd; /* write status here */
Tidy up the parent notification stuff for -background mode. Remove extraneous extern decls of tun_{in,out} and netfd.
1998-03-25 18:38:59 +00:00
} notify;
o Add `set autoload'. You can now set the minimum and maximum thresholds (in terms of queued packets for a period of time) where -auto links will be brought up and down. By default, all auto links come up when we reach NETWORK phase and never go down. o Display current autoload state in `show bundle'. o Disable the idle timer as soon as it's called. o Disable the idle and autoload timers when exiting (in case we're abending).
1998-05-21 01:13:32 +00:00
If we've got a full output buffer queue and cannot send anything for two mintues (see ``set choked'' and ``show bundle''), nuke the ip, mp and link level buffer queues. This should fix problems where ``ppp -auto'' seems to stop responding after failing to connect to the peer a few times.
1998-08-25 17:48:43 +00:00
struct {
Initial RADIUS support (using libradius). See the man page for details. Compiling with -DNORADIUS (the default for `release') removes support. TODO: The functionality in libradius::rad_send_request() needs to be supplied as a set of routines so that ppp doesn't have to wait indefinitely for the radius server(s). Instead, we need to get a descriptor back, select() on the descriptor, and ask libradius to service it when necessary. For now, ppp blocks SIGALRM while in rad_send_request(), so it misses PAP/CHAP retries & timeouts if they occur. Only PAP is functional. When CHAP is attempted, libradius complains that no User-Password has been specified... rfc2138 says that it *mustn't* be used for CHAP :-( Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
struct pppTimer timer; /* choked output queue timer */
If we've got a full output buffer queue and cannot send anything for two mintues (see ``set choked'' and ``show bundle''), nuke the ip, mp and link level buffer queues. This should fix problems where ``ppp -auto'' seems to stop responding after failing to connect to the peer a few times.
1998-08-25 17:48:43 +00:00
} choked;
Initial RADIUS support (using libradius). See the man page for details. Compiling with -DNORADIUS (the default for `release') removes support. TODO: The functionality in libradius::rad_send_request() needs to be supplied as a set of routines so that ppp doesn't have to wait indefinitely for the radius server(s). Instead, we need to get a descriptor back, select() on the descriptor, and ask libradius to service it when necessary. For now, ppp blocks SIGALRM while in rad_send_request(), so it misses PAP/CHAP retries & timeouts if they occur. Only PAP is functional. When CHAP is attempted, libradius complains that no User-Password has been specified... rfc2138 says that it *mustn't* be used for CHAP :-( Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00
#ifndef NORADIUS
struct radius radius; /* Info retrieved from radius server */
#endif
Create `struct bundle' - the top level control structure. This structure will eventually contain a list of NCPs (currently only IPCP is supported) and a list of physical `struct link's. It will also derive from a struct link itself. Make ModemTimeout() static - it's way to dangerous to be called from outside ! Bump version to 1.9. Our first MP release should be 2.0.
1998-02-02 19:32:16 +00:00
};
Make struct bundle into a sort of `struct descriptor'. It does the fdsets/reads/writes for each of it's datalinks.
1998-03-20 19:48:28 +00:00
#define descriptor2bundle(d) \
((d)->type == BUNDLE_DESCRIPTOR ? (struct bundle *)(d) : NULL)
Fix ``set proctitle'' by using setproctitle().
1999-11-17 21:12:35 +00:00
extern struct bundle *bundle_Create(const char *, int, int);
o Add bundle_Destroy(). o Don't remove routes and DOWN the interface when we're closed in auto mode. o Initialize the FSMs in bundle_Create. o Initialize ipcp::if_mine & ipcp::if_peer only once (so that we don't forget that we've SIOCAIFADDR'd the interface). o Do a SIOCDIFADDR on the specific address to avoid hurting any other (still non-existent) NCPs. o Fix some error/diagnostic messages.
1998-02-08 19:29:45 +00:00
extern void bundle_Destroy(struct bundle *);
o Hook the FSMs into our bundle. o The FSM layering is now more sane. o Move a lot of the NCP stuff into our ipcpstate rather than having it in the bundle, including control of the configured IP addresses. We don't need hacks like the global `linkup' variable any more as the FSM decides when our ppp.link* files get run. This is going to eventually be configurable based on FSM events anyway. o Fix a few inconsistencies when both sides require authentication. o We now have "Ppp..." and "PPp" prompts, reflecting authentication and network phase. We don't print loads of spurious prompts as we change phases any more. o Our phase is part of the bundle now. o Fix a bug where the FSM wasn't calling LayerFinish. o Close the FSM down correctly with a signal rather than slamming it down as if the line was dropped (the undocumented ``down'' command is still available though). o Remove the forgotten `tunno' variable and fix references to it.
1998-02-07 20:50:08 +00:00
extern const char *bundle_PhaseName(struct bundle *);
#define bundle_Phase(b) ((b)->phase)
Remove the second bundle_NewPhase argument and do the tun config from bundle_LayerUp.
1998-03-13 00:44:33 +00:00
extern void bundle_NewPhase(struct bundle *, u_int);
o Support callback types NONE, E.164, AUTH and CBCP. (see the new ``set callback'' and ``set cbcp'' commands) o Add a ``cbcp'' log level and mbuf type. o Don't dump core when \T is given in ``set login'' or ``set hangup''. o Allow ``*'' and blanks as placeholders in ppp.secret and allow a fifth field for specifying auth/cbcp dialback parameters. o Remove a few extraneous #includes o Define the default number of REQs (restart counter) in defs.h rather than hardcoding ``5'' all over the place. o Fix a few man page inconsistencies.
1998-08-07 18:42:51 +00:00
extern void bundle_LinksRemoved(struct bundle *);
Create `struct bundle' - the top level control structure. This structure will eventually contain a list of NCPs (currently only IPCP is supported) and a list of physical `struct link's. It will also derive from a struct link itself. Make ModemTimeout() static - it's way to dangerous to be called from outside ! Bump version to 1.9. Our first MP release should be 2.0.
1998-02-02 19:32:16 +00:00
extern int bundle_LinkIsUp(const struct bundle *);
Create `struct sticky_route'. Any `add' or `delete' command that uses MYADDR or HISADDR will be added to the sticky route list (show ipcp). When MYADDR or HISADDR change due to IPCP negotiations, and if `sroutes' is enabled (the default), all sticky route entries are updated in the routing table. The end result is that `add default hisaddr' will ``stick'', as will ``add myaddr 255.255.255.255 127.0.0.1'' and ``add 1.2.3.4 255.255.255.0 hisaddr''.
1998-05-05 23:30:13 +00:00
extern int bundle_SetRoute(struct bundle *, int, struct in_addr,
Silence ``Network unreachable'' warnings when using ``add .... HISADDR''. The network will never be reachable at this point unless we're in -auto or reading the command from ppp.linkup. We can now run the following lines and get the expected results: set ifaddr 1.2.3.4/0 5.6.7.8/0 add default HISADDR where a route is added immediately in auto mode and the whole thing is delayed 'till the IP numbers have been agreed in other modes. Essentially, ppp.linkup is no longer required.
1998-07-28 21:54:54 +00:00
struct in_addr, struct in_addr, int, int);
Create struct datalink. This is a type of physical link that can chat and talk LCP & CCP. A bundle contains a list of these (only one in the list for the moment). The datalink is a type of descriptor, and dials, enters LCP (& does CCP), kicks the bundle when its FSMs do something interesting and does the hangup chat script on the way down. It also handles redials and reconnects. There are lots of loose ends, and probably lots of bugs, but the data structures are getting there !
1998-02-16 00:01:12 +00:00
extern void bundle_Close(struct bundle *, const char *, int);
Don't bring the modem offline or hangup when ``down lcp'' is done. Instead, behave like ``close lcp''.
1998-06-16 19:40:28 +00:00
extern void bundle_Down(struct bundle *, int);
Allow an optional ``!'' in the open, dial & call commands. When used, the redial timer is ignored and the modem is opened immediately.
1998-07-29 18:21:17 +00:00
extern void bundle_Open(struct bundle *, const char *, int, int);
Create struct datalink. This is a type of physical link that can chat and talk LCP & CCP. A bundle contains a list of these (only one in the list for the moment). The datalink is a type of descriptor, and dials, enters LCP (& does CCP), kicks the bundle when its FSMs do something interesting and does the hangup chat script on the way down. It also handles redials and reconnects. There are lots of loose ends, and probably lots of bugs, but the data structures are getting there !
1998-02-16 00:01:12 +00:00
extern void bundle_LinkClosed(struct bundle *, struct datalink *);
Introduce the ``link'' command for controlling individual links.
1998-02-17 19:28:01 +00:00
extern int bundle_ShowLinks(struct cmdargs const *);
Remove ``show timeout'' and ``show auth'' and add ``show bundle''. Mention ``show timer'' in the man page.
1998-04-11 21:50:47 +00:00
extern int bundle_ShowStatus(struct cmdargs const *);
Move the idle timer into struct bundle. There's no link-level idle timer for the moment.
1998-03-09 19:26:41 +00:00
extern void bundle_StartIdleTimer(struct bundle *);
Implement a minimum idle time value as an optional second argument to ``set timeout''. This is useful for situations where your minimum call charge is (say) 5 minutes (like mine is)
1999-08-17 17:22:46 +00:00
extern void bundle_SetIdleTimer(struct bundle *, int, int);
Move the idle timer into struct bundle. There's no link-level idle timer for the moment.
1998-03-09 19:26:41 +00:00
extern void bundle_StopIdleTimer(struct bundle *);
o Move struct lcp and struct ccp into struct link. o Remove bundle2lcp(), bundle2ccp() and bundle2link(). They're too resource-hungry and we have `owner pointers' to do their job. o Make our FSM understand LCPs that are always ST_OPENED (with a minimum code that != 1). o Send FSM code rejects for invalid codes. o Make our bundle fsm_parent deal with multiple links. o Make timer diagnostics pretty and allow access via ~t in `term' mode (not just when logging debug) and `show timers'. Only show timers every second in debug mode, otherwise we get too many diagnostics to be useful (we probably still do). Also, don't restrict ~m in term mode to depend on debug logging. o Rationalise our bundles' phases. o Create struct mp (multilink protocol). This is both an NCP and a type of struct link. It feeds off other NCPs for output, passing fragmented packets into the queues of available datalinks. It also gets PROTO_MP input, reassembles the fragments into ppp frames, and passes them back to the HDLC layer that the fragments were passed from. ** It's not yet possible to enter multilink mode :-( ** o Add `set weight' (requires context) for deciding on a links weighting in multilink mode. Weighting is simplistic (and probably badly implemented) for now. o Remove the function pointers in struct link. They ended up only applying to physical links. o Configure our tun device with an MTU equal to the MRU from struct mp's LCP and a speed equal to the sum of our link speeds. o `show {lcp,ccp,proto}' and `set deflate' now have optional context and use ChooseLink() to decide on which `struct link' to use. This allows behaviour as before when in non-multilink mode, and allows access to the MP logical link in multilink mode. o Ignore reconnect and redial values when in -direct mode and when cleaning up. Always redial when in -ddial or -dedicated mode (unless cleaning up). o Tell our links to `staydown' when we close them due to a signal. o Remove remaining `#ifdef SIGALRM's (ppp doesn't function without alarms). o Don't bother strdup()ing our physical link name. o Various other cosmetic changes.
1998-04-03 19:21:56 +00:00
extern int bundle_IsDead(struct bundle *);
Shuffle around our FSMs a bit. This'll make it easier to remove the CcpInfo, LcpInfo and IpcpInfo globals.
1998-02-21 01:45:26 +00:00
extern struct datalink *bundle2datalink(struct bundle *, const char *);
Deglobalise `struct prompt': o Our diagnostic socket has its password set in the `set socket' line only (not in ppp.secret). o Passwords are per server socket (*VarAuthKey are gone) o Authority is per prompt (VarLocalAuth is gone). o Local logging is per prompt. o Add a `show who' command to see who's connected. No identd routine - just a `where the connection came from' display. o SIGUSR1 is disabled for now - we have no way of choosing a password for the socket created :-( Prompts are attached as a list of `struct descriptor's in struct bundle, and serviced under the bundles descriptor service routines. Ultimately, everything should be done like this. Cosmetic: o alphabeticalise SRCS in Makefile. o Add a few comments in command.h TODO: Start checking that we don't overflow the descriptor sets in select() now that we can have any number of descriptors.
1998-04-03 19:26:02 +00:00
extern void bundle_RegisterDescriptor(struct bundle *, struct descriptor *);
extern void bundle_UnRegisterDescriptor(struct bundle *, struct descriptor *);
extern void bundle_SetTtyCommandMode(struct bundle *, struct datalink *);
Add the `clone' and `remove' commands for creating and destroying links.
1998-04-05 22:48:25 +00:00
Don't `clone' links with existing names.
1998-05-10 10:21:11 +00:00
extern int bundle_DatalinkClone(struct bundle *, struct datalink *,
const char *);
Add the `clone' and `remove' commands for creating and destroying links.
1998-04-05 22:48:25 +00:00
extern void bundle_DatalinkRemove(struct bundle *, struct datalink *);
o Remove the `mode' global - it's now per physical device. o Shuffle things that live at the datalink level into ``show link'' rather than ``show modem''. o Make both ``show'' commands prettier and more consistent, and display carrier status, link type and our name in ``show modem''. o Show redial and reconnect information in ``show link'' and remove ``show redial'' and ``show reconnect''. o Down the correct link in bundle_LinkLost(). o Remove stale -direct and -background links at the end of our main loop, not when we know they're going. This prevents unexpected pointer-invalidations... o If we ``set server'' with the same values twice, notice and don't moan about failure. o Record dial script despite our link mode. The mode may be changed later (next mod) :-) We never run scripts in -direct and -dedicated modes. o Make ``set server none'' functional again. o Correct datalink state array so that we don't report an ``unknown'' state. o Pass struct ipcp to IpcpCleanInterface, not struct fsm. o Create TUN_PREFIX define rather than hard-coding in main.c o prompt_TtyInit now handles a NULL prompt for -direct mode rather than having to create one then destroy it uncleanly. o Mention our mode in the "PPP Started" LogPHASE message. o Bring all auto links up when we have something to send. o Remove some redundant Physical_*() functions. o Show which connection is running a command when logging commands. o Initialise throughput uptime correctly.
1998-04-10 13:19:23 +00:00
extern void bundle_CleanDatalinks(struct bundle *);
Negotiate MRRU, SHORTSEQ and ENDDISC. ENDDISC doesn't imply multilink ('cos I've seen my ISP REQ it without multilink). Setting MRRU is ifdef'd out until it's debugged and we can merge -direct links with other running programs. Fix MTU setting.
1998-04-23 03:23:03 +00:00
extern void bundle_SetLabel(struct bundle *, const char *);
extern const char *bundle_GetLabel(struct bundle *);
o Transfer file descriptors using {send,recv}msg & SCM_RIGHTS, using the scatter/gather array to transfer the link information. The whole link is now passed in one message. This is far better than the two `/bin/cat' processes per additional link :-) I remember years ago thinking that file descriptor transferral would be a really amazing facility ! Suggested by: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> and: Eivind Eklund <eivind@yes.no>
1998-05-02 21:57:50 +00:00
extern void bundle_SendDatalink(struct datalink *, int, struct sockaddr_un *);
Rewrite the link descriptor transfer code in MP mode. Previously, ppp attempted to bind() to a local domain tcp socket based on the peer authname & enddisc. If it succeeded, it listen()ed and became MP server. If it failed, it connect()ed and became MP client. The server then select()ed on the descriptor, accept()ed it and wrote its pid to it then read the link data & link file descriptor, and finally sent an ack (``!''). The client would read() the server pid, transfer the link lock to that pid, send the link data & descriptor and read the ack. It would then close the descriptor and clean up. There was a race between the bind() and listen() where someone could attempt to connect() and fail. This change removes the race. Now ppp makes the RCVBUF big enough on a socket descriptor and attempts to bind() to a local domain *udp* socket (same name as before). If it succeeds, it becomes MP server. If it fails, it sets the SNDBUF and connect()s, becoming MP client. The server select()s on the descriptor and recvmsg()s the message, insisting on at least two descriptors (plus the link data). It uses the second descriptor to write() its pid then read()s an ack (``!''). The client creates a socketpair() and sendmsg()s the link data, link descriptor and one of the socketpair descriptors. It then read()s the server pid from the other socketpair descriptor, transfers any locks and write()s an ack. Now, there can be no race, and a connect() failure indicates a stale socket file. This also fixes MP ppp over ethernet, where the struct msghdr was being misconstructed when transferring the control socket descriptor. Also, if we fail to send the link, don't hang around in a ``session owner'' state, just do the setsid() and fork() if it's required to disown a tty. UDP idea suggested by: Chris Bennet from Mindspring at FreeBSDCon
1999-11-25 02:47:04 +00:00
extern int bundle_LinkSize(void);
extern void bundle_ReceiveDatalink(struct bundle *, int);
o Add the `set mode' command for change a links current mode. It is not possible to switch to or from dedicated or direct mode, but all other combinations are ok (eg. -auto -> -ddial). o Cope with the fact that commands with optional context may not be able to obtain a link with command_ChooseLink() (if all links have been deleted for example). o Allow `clone'ing in non-multilink mode. We may for example want to configure two links in unilink mode and dial them both, using the one that comes up first. It's also possible to rename ``deflink'' by cloning it, deleting the original, then setting the mode of the new link.
1998-05-15 23:58:30 +00:00
extern int bundle_SetMode(struct bundle *, struct datalink *, int);
Add the `rename' command for renaming links.
1998-05-16 23:47:28 +00:00
extern int bundle_RenameDatalink(struct bundle *, struct datalink *,
const char *);
o #define the name "tun" in defs.h against the future possibility of supporting architectures with different device names. o Close /dev/tunX when destroying the bundle. o Don't forget to close the parent end of the pipe in the child process when exec'ing a program from a chat script. o If we close our controlling terminal, ditch the current session with it, allowing getty(8) (or whatever) to regain control. o After transferring our controlling terminal descriptor to another ppp instance, we now fork a new ppp to continue where we left off, transferring ownership of all uucp locks and the /var/run/tunX.pid file. Meanwhile the parent closes all file descriptors, defaults all signals and does a pause() to wait for a HUP after the transferred descriptor is finally closed. We don't run /bin/cat any more (again!). Suggested by: bde TODO: It seems clocal devices need their pause()d session leader to be given a manual HUP, as closing the last open descriptor doesn't do the job.
1998-05-28 23:17:51 +00:00
extern void bundle_setsid(struct bundle *, int);
Put the correct pid in /var/run/tunX.pid Suggested by: many
1998-06-06 20:50:57 +00:00
extern void bundle_LockTun(struct bundle *);
Loosen our restrictions on setting enddisc, mrru, shortseq, authname and authkey. o Auth{name,key} may additionally be set in PHASE_ESTABLISH. o The others may be set in PHASE_ESTABLISH as long as no links have yet reached DATALINK_LCP.
1998-10-24 01:08:45 +00:00
extern int bundle_HighestState(struct bundle *);
When using ``set device !someprogram'', when ``someprogram'' exits, it causes a select() exception. Handle these select() exceptions on link descriptors in pretty much the same way as loss of carrier rather than dropping out in confusion.
1998-12-10 18:36:30 +00:00
extern int bundle_Exception(struct bundle *, int);
Remember if MYADDR or HISADDR is used in a filter add tweak all filters any time either value changes.
1999-05-31 23:57:40 +00:00
extern void bundle_AdjustFilters(struct bundle *, struct in_addr *,
struct in_addr *);
o Obsolete the undocumented ``set weight'' command. o If we're using RADIUS and the RADIUS mtu is less than our peers mru/mrru, reduce our mtu to this value for NetBSD too. o Make struct throughput's sample period dynamic and tweak the ppp version number to reflect the extra stuff being passed through the local domain socket as a result (MP mode). o Measure the current throughput based on the number of samples actually taken rather than on the full sample period. o Keep the throughput statisics persistent while being passed to another ppp invocation through the local domain socket. o When showing throughput statistics after the timer has stopped, use the stopped time for overall calculations, not the current time. Also show the stopped time and how long the current throughput has been sampled for. o Use time() consistently in throughput.c o Tighten up the ``show bundle'' output. o Introduce the ``set bandwidth'' command. o Rewrite the ``set autoload'' command. It now takes three arguments and works based on a rolling bundle throughput average compared against the theoretical bundle bandwidth over a given period (read: it's now functional).
1999-08-05 10:32:16 +00:00
extern void bundle_CalculateBandwidth(struct bundle *);
extern void bundle_AutoAdjust(struct bundle *, int, int);
extern int bundle_WantAutoloadTimer(struct bundle *);
Use TUNSIFPID when we change our PID (if it exists).
2000-01-21 00:33:27 +00:00
extern void bundle_ChangedPID(struct bundle *);
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