Commit Graph

68 Commits

Author SHA1 Message Date
Peter Wemm
d42da05b12 Zap #include "tun.h" (for NTUN) - which isn't used anymore. 1999-09-27 00:55:29 +00:00
Poul-Henning Kamp
d6a0e38a1b Remove five now unused fields from struct cdevsw. They should never
have been there in the first place.  A GENERIC kernel shrinks almost 1k.

Add a slightly different safetybelt under nostop for tty drivers.

Add some missing FreeBSD tags
1999-09-25 18:24:47 +00:00
Poul-Henning Kamp
46783fb897 Remove NBPF conditionality of bpf calls in most of our network drivers.
This means that we will not have to have a bpf and a non-bpf version
of our driver modules.

This does not open any security hole, because the bpf core isn't loadable

The drivers left unchanged are the "cross platform" drivers where the respective
maintainers are urged to DTRT, whatever that may be.

Add a couple of missing FreeBSD tags.
1999-09-25 12:06:01 +00:00
Poul-Henning Kamp
c6ba8fec16 Give if_tun the "almost clone" makeover. 1999-08-15 09:54:57 +00:00
Brian Somers
a18e16060e Back out redundant check, and remove the MAXMTU comparison as it's
outside of the (bogus) tuninfo mtu range.
Pointed out by: bde
1999-08-06 16:52:04 +00:00
Brian Somers
aab3beeede Define IF_MAXMTU and IF_MINMTU and don't allow MTUs with
out-of-range values.

``comparison is always 0'' warnings are silly !

Ok'd by:	wollman, dg
Advised by:	bde
1999-08-06 13:53:03 +00:00
Brian Somers
3145c58d33 Don't complain if 0 bytes are written to the tun device, simply
do nothing.
1999-07-26 12:11:10 +00:00
John-Mark Gurney
37735ca6ea fix a problem w/ zero byte writes to the tunnel device. It would bypass
the loop and not set an error, so we would then try to access an invalid
mbuf...

PR:		12780
Submitted by:	bright@rush.net aka zb^3

a new record in length a pr was open... only about a half hour...
1999-07-23 20:08:27 +00:00
Dag-Erling Smørgrav
6b5ca0d83e Rename bpfilter to bpf. 1999-07-06 19:23:32 +00:00
Poul-Henning Kamp
413dd0ba39 Add a new interface ioctl, to return "aux status".
This is inteded for to allow ifconfig to print various unstructured
information from an interface.

The data is returned from the kernel in ASCII form, see the comment in
if.h for some technicalities.

Canonical cut&paste example to be found in if_tun.c

Initial use:
        Now tun* interfaces tell the PID of the process which opened them.

Future uses could be (volounteers welcome!):
        Have ppp/slip interfaces tell which tty they use.
        Make sync interfaces return their media state: red/yellow/blue
        alarm, timeslot assignment and so on.
        Make ethernets warn about missing heartbeats and/or cables
1999-06-19 18:42:31 +00:00
Poul-Henning Kamp
2447bec829 Simplify cdevsw registration.
The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it.  cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.

cdevsw_add() will print an message if the d_maj field looks bogus.

Remove nblkdev and nchrdev variables.  Most places they were used
bogusly.  Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.

Move bdevsw() and devsw() functions to kern/kern_conf.c

Bump __FreeBSD_version to 400006

This commit removes:
        72 bogus makedev() calls
        26 bogus SYSINIT functions

if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.

I4b and vinum not changed.  Patches emailed to authors.  LINT
probably broken until they catch up.
1999-05-31 11:29:30 +00:00
Poul-Henning Kamp
4e2f199e0c This commit should be a extensive NO-OP:
Reformat and initialize correctly all "struct cdevsw".

        Initialize the d_maj and d_bmaj fields.

        The d_reset field was not removed, although it is never used.

I used a program to do most of this, so all the files now use the
same consistent format.  Please keep it that way.

Vinum and i4b not modified, patches emailed to respective authors.
1999-05-30 16:53:49 +00:00
Brian Somers
42c4682dd9 In tunclose():
Delete all routes if IFF_RUNNING is set, irrespective of IFF_UP
  Unset IFF_RUNNING.
1999-05-27 13:18:28 +00:00
Peter Wemm
dfd5dee1b0 Add sufficient braces to keep egcs happy about potentially ambiguous
if/else nesting.
1999-05-06 18:13:11 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
Dag-Erling Smørgrav
b56fecc80b Implement TUNSIFMODE and TUNSLMODE.
Submitted by:	Alfred Perlstein <bright@cygnus.rush.net>
1999-03-24 21:20:12 +00:00
Matthew Dillon
831a80b0d5 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 22:42:27 +00:00
Peter Wemm
8e203b83a7 Undo #undef KERNEL hack for vnode.h to avoid vnode_if.h.
XXX It probably makes sense to have a flag for bsd.kern.mk to avoid these
    rules.
XXX IO_NDELAY seems to be the main reason for it, when used in a cdevsw
    read or write "flag" context.  Perhaps a redundant declaration
    somewhere like sys/conf.h might help remove the need for vnode.h in
    these device drivers in the first place.
1999-01-17 20:53:48 +00:00
Archie Cobbs
f1d19042b0 The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
Don Lewis
831d27a9f5 Installed the second patch attached to kern/7899 with some changes suggested
by bde, a few other tweaks to get the patch to apply cleanly again and
some improvements to the comments.

This change closes some fairly minor security holes associated with
F_SETOWN, fixes a few bugs, and removes some limitations that F_SETOWN
had on tty devices.  For more details, see the description on the PR.

Because this patch increases the size of the proc and pgrp structures,
it is necessary to re-install the includes and recompile libkvm,
the vinum lkm, fstat, gcore, gdb, ipfilter, ps, top, and w.

PR:		kern/7899
Reviewed by:	bde, elvind
1998-11-11 10:04:13 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Brian Somers
5417a1a44a Support more than 256 tun devices:
$ ls -l /dev/tun25[4-7]
crw-------  1 fax  dialer   52, 254 Apr 27 02:27 /dev/tun254
crw-------  1 fax  dialer   52, 255 Apr 27 02:27 /dev/tun255
crw-------  1 fax  dialer   52, 0x00010000 Apr 27 02:31 /dev/tun256
crw-------  1 fax  dialer   52, 0x00010001 Apr 27 02:31 /dev/tun257
1998-04-27 01:44:22 +00:00
Dag-Erling Smørgrav
dc73342347 Seventy-odd "its" / "it's" typos in comments fixed as per kern/6108. 1998-04-17 22:37:19 +00:00
Poul-Henning Kamp
98b9590ef3 Use getmicrotime() for if_lastchange, 10msec is plenty precision. 1998-04-06 11:43:12 +00:00
Bruce Evans
e31abede1f Don't depend on "implicit int" or bloat the data section in the
declaration of xxx_devsw_installed.
1998-02-20 13:46:58 +00:00
Steve Price
3398edcee9 Revert previous commit. Remove all ifp->if_* = 0 initializations,
since pkh made tunctl static in revision 1.17 these are already
guaranteed to be zero'd and tunattach will only be called once.

Pointed out by: Bruce Evans and Bill Fenner
1998-02-01 05:36:44 +00:00
Steve Price
e2f6977240 Initialize if_ibytes and if_obytes to zero.
PR:		1376
Submitted by:	risner@stdio.com
1998-01-25 17:54:57 +00:00
Eivind Eklund
7b778b5e61 Make all file-system (MFS, FFS, NFS, LFS, DEVFS) related option new-style.
This introduce an xxxFS_BOOT for each of the rootable filesystems.
(Presently not required, but encouraged to allow a smooth move of option *FS
to opt_dontuse.h later.)

LFS is temporarily disabled, and will be re-enabled tomorrow.
1998-01-24 02:54:56 +00:00
Brian Somers
1aeffee9fb Move softc stuff into if_tunvar.h
Suggested by: Peter Wemm <peter@netplex.com.au>
Hinted at by: Bruce Evans <bde@FreeBSD.org>
À³
1998-01-11 17:52:29 +00:00
Eivind Eklund
1d5e9e2255 Make INET a proper option.
This will not make any of object files that LINT create change; there
might be differences with INET disabled, but hardly anything compiled
before without INET anyway.  Now the 'obvious' things will give a
proper error if compiled without inet - ipx_ip, ipfw, tcp_debug.  The
only thing that _should_ work (but can't be made to compile reasonably
easily) is sppp :-(

This commit move struct arpcom from <netinet/if_ether.h> to
<net/if_arp.h>.
1998-01-08 23:42:31 +00:00
Bruce Evans
9a43455f43 Removed unused #includes.
Fixed gratuitous ANSIisms.

Fixed nonblocking mode.  It was per-device instead of per-file.
1997-11-18 16:36:15 +00:00
Peter Wemm
e0e8ed506f Update select -> poll 1997-09-14 03:09:01 +00:00
Julian Elischer
1d389e50e0 As the Tunnel device has no real inherrent MRU limit,
so don't enforce the MTU as an MRU. Allow bidirectional ppp MTU
negotiation, by checking against a differnt figure for MRU.
Make it large enough for ATM frames at least.

Submitted by:   archie@whistle.com (archie cobbs)
1997-06-11 20:15:50 +00:00
Bruce Evans
528f627f00 Don't include <sys/ioctl.h> in the kernel. Stage 6: include
<sys/filio.h>, <sys/sockio.h> and <sys/ttycom.h> instead of
<sys/ioctl.h> in a couple of files.  This is still only 1/3
as spammish as <sys/ioctl.h> - 5 or 6 old tty ioctl headers
aren't needed.
1997-03-24 12:12:36 +00:00
Bruce Evans
3ac4d1ef0c Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined.
Fixed everything that depended on getting fcntl.h stuff from the wrong
place.  Most things don't depend on file.h stuff at all.
1997-03-23 03:37:54 +00:00
Garrett Wollman
c7e54a6a04 Don't try to do anything with the `ifr' parameter for SIOCADDMULTI
and SIOCDELMULTI; it is guaranteed to be null in the new system.
1997-01-17 19:38:16 +00:00
Bill Fenner
c812f23a41 Change default tun MTU back to 1500.
Use the interface MTU instead of the constant when deciding what
	packets to accept.
Allow using the SIOCSIFMTU ioctl (e.g. "ifconfig tun0 mtu XXX") to
	set the MTU.
1996-12-16 19:23:34 +00:00
Garrett Wollman
59562606b9 Convert the interface address and IP interface address structures
to TAILQs.  Fix places which referenced these for no good reason
that I can see (the references remain, but were fixed to compile
again; they are still questionable).
1996-12-13 21:29:07 +00:00
Julian Elischer
610600118c 2 small changes:
1/ increase the tun MTU from 1500 to 1600 to allow it to be used with
packets formatted according to RFC1490 and RFC1717

2/ allow the tsleep() when reading, to be interruptable by signals
so that one can now do:
od -xc </dev/tun0
to dump packets for debugging without getting hung.

Passed on by: Archie@whistle.com (archie Cobbs)

Nice but not neccessary in 2.2
1996-12-02 21:07:33 +00:00
Gary Palmer
0cf8755c9b Remove an un-necessary call to microtime() to set if_lastchange
as it is set in the call to if_down in the line above
1996-06-23 00:51:05 +00:00
Gary Palmer
a614bfe060 Since the updates to ifnet.if_lastchange are so rare (relatively
speaking), go for the extra accuracy and call microtime() to get
the current time.

Pointed Out By:		bde
1996-06-12 19:24:03 +00:00
Gary Palmer
e39a0280cb Change the use if ifnet.if_lastchange to be more in line with
SNMP requirements. Update description of ifnet.if_lastchange in if.h
to indicate this.
1996-06-10 23:07:36 +00:00
Poul-Henning Kamp
5f8f505749 Also count bytes in if_tun. kern/1253
Reviewed by:	phk
Submitted by:	John Capo <jc@irbs.com>
1996-06-09 17:24:25 +00:00
Marc G. Fournier
51d976f16a added missing semicolon
Submitted by:	 Jeffrey Hsu <hsu@freefall.freebsd.org>
1996-05-26 22:05:36 +00:00
Poul-Henning Kamp
d0aa157d5b If tunnel is busy we return EBUSY, not ENXIO. 1996-05-26 17:04:48 +00:00
Bruce Evans
6ffde942bf Removed never-used #includes of <machine/cpu.h>. Many were apparently
copied from bad examples.
1996-04-07 17:39:28 +00:00
Bruce Evans
6c4591a089 Fixed ownerships of callout devices. 1996-03-27 20:03:32 +00:00
Poul-Henning Kamp
f0d807c7fe Make tundebug sysctl writable. 1996-02-09 09:23:56 +00:00
Garrett Wollman
9b44ff2214 Clean up Ethernet drivers:
- fill in and use ifp->if_softc
	- use if_bpf rather than private cookie variables
	- change bpf interface to take advantage of this
	- call ether_ifattach() directly from Ethernet drivers
	- delete kludge in if_attach() that did this indirectly
1996-02-06 18:51:28 +00:00
Peter Wemm
8c1f170b90 Make FIONREAD return the actual that a read() would return, not just the
amount of data in the first mbuf.

Obtained from: Bob Smart <smart@mel.dit.csiro.au> (for NetBSD & SunOS)
1995-12-11 13:24:58 +00:00