Commit Graph

838 Commits

Author SHA1 Message Date
Poul-Henning Kamp
6cb2a0952f Do some cleanups of the HARP atm codes interface into the system:
Define the NETISR just like all the other NETISRs.

unifdef -Usun -D__FreeBSD__  we will probably never support sun4c
and if we do we can't use the solaris code anyway and  I doubt
anybody will be running Fore ATM cards in then in the first place.
2000-10-12 00:03:50 +00:00
Poul-Henning Kamp
6ab7b8286d Don't make_dev() in bpfopen() unless we need to. 2000-10-09 14:19:09 +00:00
Jun-ichiro itojun Hagino
41b3e8e5bf make sure we have root priv on SIOCSIFPHY*. from thorpej@netbsd 2000-10-04 23:16:29 +00:00
Boris Popov
2a7e8ece75 Properly setup link level header length for 802.2 and SNAP frames. 2000-09-30 14:33:53 +00:00
Bruce Evans
008bec716e Handle slip options in the usual way (generate a dummy options file in
the module Makefile and don't clutter the sources with ifdefs).

Fixed nearby formatting bugs.
2000-09-26 18:34:30 +00:00
Bruce Evans
1bcd237fec Removed unused includes (garbage left over/created by the SMPng megacommit). 2000-09-26 17:48:55 +00:00
Nick Sayer
54d2be5a40 In theory, m_dup should not be necessary, as m_copypacket should be
sifficient. But somewhere (I believe in the UDP stuff), someone is
overwriting an mbuf without calling m_pullup() first. This results in
broad- and multi-cast traffic that is passed through the bridge getting
corrupted.

This should be backed out when there is some assurance that the upper
layers (and I suppose all of the device drivers) are fixed.

Suggested by: archie
2000-09-25 17:24:02 +00:00
Bosko Milekic
ddacb30f2d Get rid of a panic that occurs in ether_demux() by dereferencing a NULL mbuf
pointer, when bridging and bridge_ipfw are enabled, and when bdg_forward()
happens to free the packet and make our pointer NULL. There may be
more similar problems like this one with calls to bdg_forward().

PR: Related to kern/19551
Reviewed by: jlemon
2000-09-24 04:08:38 +00:00
Poul-Henning Kamp
b0d17ba69e Rename lminor() to dev2unit(). This function gives a linear unit number
which hides the 'hole' in the minor bits.

Introduce unit2minor() to do the reverse operation.

Fix some some make_dev() calls which didn't use UID_* or GID_* macros.

Kill the v_hashchain alias macro, it hides the real relationship.

Introduce experimental SI_CHEAPCLONE flag set it on cloned bpfs.
2000-09-19 10:28:44 +00:00
Brian Somers
30fa52a6fa Call bpfattach() correctly from if_ppp.c
Submitted by:	Andy Adams <ala@merit.edu>
PR:		18506
2000-09-16 14:17:15 +00:00
Ruslan Ermilov
e30177e024 Follow BSD/OS and NetBSD, keep the ip_id field in network order all the time.
Requested by:	wollman
2000-09-14 14:42:04 +00:00
Jason Evans
0384fff8c5 Major update to the way synchronization is done in the kernel. Highlights
include:

* Mutual exclusion is used instead of spl*().  See mutex(9).  (Note: The
  alpha port is still in transition and currently uses both.)

* Per-CPU idle processes.

* Interrupts are run in their own separate kernel threads and can be
  preempted (i386 only).

Partially contributed by:	BSDi (BSD/OS)
Submissions by (at least):	cp, dfr, dillon, grog, jake, jhb, sheldonh
2000-09-07 01:33:02 +00:00
Robert Watson
71582bf515 o Add missing "\n" to warning output in netinet/if_loop.c, when an
unsupported address family is used on localhost interface.

    looutput: af=0 unexpected

  Speculation as to the reasons for my seeing this error are welcome, of
  course.  :-)
2000-09-04 21:46:27 +00:00
Poul-Henning Kamp
db90128160 Avoid the modules madness I inadvertently introduced by making the
cloning infrastructure standard in kern_conf.  Modules are now
the same with or without devfs support.

If you need to detect if devfs is present, in modules or elsewhere,
check the integer variable "devfs_present".

This happily removes an ugly hack from kern/vfs_conf.c.

This forces a rename of the eventhandler and the standard clone
helper function.

Include <sys/eventhandler.h> in <sys/conf.h>: it's a helper #include
like <sys/queue.h>

Remove all #includes of opt_devfs.h they no longer matter.
2000-09-02 19:17:34 +00:00
Poul-Henning Kamp
3f54a085a6 Remove all traces of Julians DEVFS (incl from kern/subr_diskslice.c)
Remove old DEVFS support fields from dev_t.

  Make uid, gid & mode members of dev_t and set them in make_dev().

  Use correct uid, gid & mode in make_dev in disk minilayer.

  Add support for registering alias names for a dev_t using the
  new function make_dev_alias().  These will show up as symlinks
  in DEVFS.

  Use makedev() rather than make_dev() for MFSs magic devices to prevent
  DEVFS from noticing this abuse.

  Add a field for DEVFS inode number in dev_t.

  Add new DEVFS in fs/devfs.

  Add devfs cloning to:
        disk minilayer (ie: ad(4), sd(4), cd(4) etc etc)
        md(4), tun(4), bpf(4), fd(4)

  If DEVFS add -d flag to /sbin/inits args to make it mount devfs.

  Add commented out DEVFS to GENERIC
2000-08-20 21:34:39 +00:00
David Malone
432b948f76 The slip driver used to allocate a mbuf cluster without attaching
it to a mbuf. This patch makes it attach it to mbuf.  This patch
is in preperation for Bosko Milekic's mbuf external reference
counting patches.

PR:		19866 (first stage)
Submitted by:	Ian Dowse <iedowse@maths.tcd.ie>
Reviewed by:	alfred
2000-08-18 08:02:31 +00:00
Jun-ichiro itojun Hagino
d1d1144bd7 repair endianness issue in IN_MULTICAST().
again, *BSD difference...

From: Nick Sayer <nsayer@quack.kfu.com>
2000-08-15 07:34:08 +00:00
Archie Cobbs
66ce51cec7 Export the functionality of SIOCSIFLLADDR with if_setlladdr()
and add some more rigorous sanity checking in the process.

Reviewed by:	freebsd-net
2000-08-15 00:48:38 +00:00
Atsushi Onoe
853f381335 Change the argument for SIOCG80211NWID/SIOCS80211NWID to include the
length of NWID.  This breaks binary compatibility but only the awi driver
refers this ioctl; no userland tools refers it.
Add WEP stuff.
Obtained from:	NetBSD current
2000-08-14 13:29:49 +00:00
Andrey A. Chernov
e7278dcf6f Replace nonexistent !defined(_LKM) by !defined(KLD_MODULE) 2000-08-01 00:40:32 +00:00
Andrey A. Chernov
8f3a320a76 Check IPFILTER (options IPFILTER generates) instead of NIPFILTER 2000-08-01 00:12:27 +00:00
Andrey A. Chernov
d61dfe72b6 Nonexistent "ipfilter.h" -> "opt_ipfilter.h"
Kernel 'make depend' fails otherwise
2000-07-31 23:35:08 +00:00
Nick Sayer
82902fa3d8 Make the bridge_refresh operation automatic when ethernet interfaces
are attached or detached.
2000-07-29 02:00:12 +00:00
Jeroen Ruigrok van der Werven
a66233226c Fix if_types.h as per the IANA assignments with regard to IPv6.
gif/faith/stf moved to 0xfN entries, since their previous location
is allocated to some other interfaces.
Also add the IFT_PVC, which is the ATM PVC subinterface from ALTQ.

This also syncs us up a bit to NetBSD again.

This change requires a total recompilation of all kmem users, as
itojun told me.

Next in line is synching to the IANI SMI list.

Approved by:	itojun
2000-07-28 06:20:11 +00:00
Nick Sayer
b14e438ed8 Change to support vmware... SIOCSIFADDR on the character device
sets the (notional) "remote" ethernet address.

Submitted by:	vsilyaev@mindspring.com
2000-07-25 23:50:30 +00:00
Hajimu UMEMOTO
8bf72aef7c Workaround to avoid panic during detach pccard nic. 2000-07-25 11:21:01 +00:00
Nick Sayer
6d57c73f9c Sundry changes to debugging code.
Add spl/splx to various sensitive spots
Change semantics of the vmnet version of the device to keep VMware happy
(don't junk state when the device is closed)

Submitted by:	vsilyaev@mindspring.com
2000-07-24 15:32:26 +00:00
Jayanth Vijayaraghavan
e7f3269307 When a connection is being dropped due to a listen queue overflow,
delete the cloned route that is associated with the connection.
This does not exhaust the routing table memory when the system
is under a SYN flood attack. The route entry is not deleted if there
is any prior information cached in it.

Reviewed by: Peter Wemm,asmodai
2000-07-21 23:26:37 +00:00
Nick Sayer
39902b5bea Oops. SYSCTL_HANDLER_ARGS -> (SYSCTL_HANDLER_ARGS) 2000-07-20 17:57:20 +00:00
Nick Sayer
12dc24ded3 Add sysctl to perform bridge refresh. This is required if bridged
configurations include loadable interfaces. After loading new
interface drivers, perform a 'sysctl -w net.link.ether.bridge_refresh=1'
and the bridge code will reinitialize itself.

Submitted by: <vsilyaev@mindspring.com>
2000-07-20 17:07:06 +00:00
Nick Sayer
a5213f145a Add the tap driver.
The tap driver is used to present a virtual Ethernet interface to the
system. Packets presented by the network stack to the interface are
made available to a character device in /dev. With tap and the bridge
code, you can make remote bridge configurations where both sides of
the bridge are separated by userland daemons.

This driver also has a special naming hack to allow it to serve a similar
purpose to the vmware port.

Submitted by:	myevmenkin@att.com, vsilyaev@mindspring.com
2000-07-20 17:01:10 +00:00
Kris Kennaway
914594eaa1 Temporary hack for the benefit of the X-Bone project
(http://www.isi.edu/xbone). I expect this to go away in due course.

Submitted by:	Lars Eggert <larse@ISI.EDU>
2000-07-20 00:35:37 +00:00
Archie Cobbs
6e64168369 Const'ify parameters to ethers(3) routines as appropriate. 2000-07-18 22:44:52 +00:00
Brian Somers
36976ff534 Initialise ifnet::if_type
PR:		17873
Submitted by:	Kensaku Masuda <greg@greg.rim.or.jp>
2000-07-17 23:21:42 +00:00
Jun-ichiro itojun Hagino
978ee2ed92 improve route/nd cache cleanup on interface removal.
CAVEAT: haven't really tested it yet, please report
2000-07-16 01:46:42 +00:00
Archie Cobbs
21b8ebd926 Make all Ethernet drivers attach using ether_ifattach() and detach using
ether_ifdetach().

The former consolidates the operations of if_attach(), ng_ether_attach(),
and bpfattach(). The latter consolidates the corresponding detach operations.

Reviewed by:	julian, freebsd-net
2000-07-13 22:54:34 +00:00
Jun-ichiro itojun Hagino
595b8a1cdd repair IPV6_JOIN_GROUP to IPv6 all multi.
From: ume
2000-07-09 11:17:17 +00:00
Jun-ichiro itojun Hagino
686cdd19b1 sync with kame tree as of july00. tons of bug fixes/improvements.
API changes:
- additional IPv6 ioctls
- IPsec PF_KEY API was changed, it is mandatory to upgrade setkey(8).
  (also syntax change)
2000-07-04 16:35:15 +00:00
Poul-Henning Kamp
77978ab8bc Previous commit changing SYSCTL_HANDLER_ARGS violated KNF.
Pointed out by:	bde
2000-07-04 11:25:35 +00:00
Poul-Henning Kamp
82d9ae4e32 Style police catches up with rev 1.26 of src/sys/sys/sysctl.h:
Sanitize SYSCTL_HANDLER_ARGS so that simplistic tools can grog our
sources:

        -sysctl_vm_zone SYSCTL_HANDLER_ARGS
        +sysctl_vm_zone (SYSCTL_HANDLER_ARGS)
2000-07-03 09:35:31 +00:00
Archie Cobbs
c38d75f43d Previous commit didn't work; this time really fix it. 2000-06-30 16:38:24 +00:00
Archie Cobbs
44ce4b7dcd Provide forward declarations for struct ifnet and struct mbuf
to avoid compiler warnings.
2000-06-29 22:30:42 +00:00
Archie Cobbs
6ec86086e7 Fix kernel build breakage when 'device ether' was not included. 2000-06-29 19:14:28 +00:00
Archie Cobbs
e1e1452d61 Make the ng_ether(4) node type dynamically loadable like the rest.
This means 'options NETGRAPH' is no longer necessary in order to get
netgraph-enabled Ethernet interfaces. This supports loading/unloading
the ng_ether.ko and attaching/detaching the Ethernet interface in any
order.

Add two new hooks 'upper' and 'lower' to allow access to the protocol
demux engine and the raw device, respectively. This enables bridging
to be defined as a netgraph node, if so desired.

Reviewed by:	freebsd-net@freebsd.org
2000-06-26 23:34:54 +00:00
Bill Paul
b106252c19 Implement SIOCSIFLLADDR, which allows you to change the link-level
address on an interface. This basically allows you to do what my
little setmac module/utility does via ifconfig. This involves the
following changes:

socket.h: define SIOCSIFLLADDR
if.c: add support for SIOCSIFLLADDR, which resets the values in
      the arpcom struct and sockaddr_dl for the specified interface.
      Note that if the interface is already up, we need to down/up
      it in order to program the underlying hardware's receive filter.
ifconfig.c: add lladdr command
ifconfig.8: document lladdr command

You can now force the MAC address on any ethernet interface to be
whatever you want. (The change is not sticky across reboots of course:
we don't actually reprogram the EEPROM or anything.) Actually, you
can reprogram the MAC address on other kinds of interfaces too; this
shouldn't be ethernet-specific (though at the moment it's limited to
6 bytes of address data).

Nobody ran up to me and said "this is the politically correct way to
do this!" so I don't want to hear any complaints from people who think
I could have done it more elegantly. Consider yourselves lucky I didn't
do it by having ifconfig tread all over /dev/kmem.
2000-06-16 20:14:43 +00:00
Boris Popov
425f741b1d Do not perform any opeartion with mbuf after it placed into
interface queue.

Tested by:	Bosko Milekic <bmilekic@dsuper.net>
2000-06-14 05:56:53 +00:00
Peter Wemm
cafa1d6769 Unused include: #include "sl.h" - NSL is no longer used. 2000-06-10 11:21:30 +00:00
Archie Cobbs
756fff0053 Don't try to apply ipfw filtering to non-IP packets.
Reported-by:	"Lachlan O'Dea" <lodea@vet.com.au>
2000-06-02 22:47:53 +00:00
Matt Jacob
60ed92ddd3 fix KASSERT usage 2000-06-02 19:06:33 +00:00
Poul-Henning Kamp
6e891d64ed Don't panic if ifpromisc() returnes ENXIO, it's probably just an pccard
which have been pulled.
2000-06-01 21:57:13 +00:00
Brian Feldman
bf095ac10a Make sl(4) SLIP devices dynamically expansible. Yay! =)
PR:		kern/17758
Submitted by:	David Malone <dwmalone@maths.tcd.ie>
2000-05-30 13:47:03 +00:00
Andrew Gallatin
fe81f64ffc Rather than checking for hlen causing misalignment, we should do the
m_adj() and then check the resulting mbuf for misalignment, copying
backwards to align the mbuf if required.

This fixes a longstanding problem where an mbuf which would have been
properly aligned after an m_adj() was being misaligned and causing an
unaligned access trap in ip_input().  This bug only triggered when booting
diskless.

Reviewed by:	dfr
2000-05-26 13:47:02 +00:00
Jake Burkholder
e39756439c Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by:		msmith and others
2000-05-26 02:09:24 +00:00
Archie Cobbs
06a429a3c8 Just need to pass the address family to if_simloop(), not the whole sockaddr. 2000-05-24 21:16:56 +00:00
Jake Burkholder
740a1973a6 Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by:	phk
Reviewed by:	phk
Approved by:	mdodd
2000-05-23 20:41:01 +00:00
Archie Cobbs
2e2de7f23f Move code to handle BPF and bridging for incoming Ethernet packets out
of the individual drivers and into the common routine ether_input().
Also, remove the (incomplete) hack for matching ethernet headers
in the ip_fw code.

The good news: net result of 1016 lines removed, and this should make
bridging now work with *all* Ethernet drivers.

The bad news: it's nearly impossible to test every driver, especially
for bridging, and I was unable to get much testing help on the mailing
lists.

Reviewed by:	freebsd-net
2000-05-14 02:18:43 +00:00
Darren Reed
08aa4ea3b8 patch from Alexey Zelkin 2000-05-11 00:44:35 +00:00
Darren Reed
e9c7bebf95 Add pfil(9) subroutines and manpage from NetBSD. 2000-05-10 13:37:51 +00:00
Poul-Henning Kamp
eb95c536ad Remove unneeded #include <sys/kernel.h> 2000-04-29 15:36:14 +00:00
Julian Elischer
0beebe3a2e OOps forgot to check in this one...
API chage for netgraph.
2000-04-28 17:43:04 +00:00
Bill Paul
da626c171a Add a bpfdetach() stub routine to bpf.c. Without this, you'll get an
unresolved symbol error if you try to load a network driver into a kernel
which doesn't have bpf enabled.

Forgotten by: rwatson
Found by: peter
2000-04-27 15:11:41 +00:00
Boris Popov
5accfb8c14 Fix support for 802.2 and SNAP frames. Bug was introduced during
initial import.

Tested by:	Jorge P Vasquez <jorge@acron.ind.br>
2000-04-27 10:13:52 +00:00
Kenjiro Cho
0a48a6902d remove "register" specifiers to supress compiler warning. 2000-04-26 02:40:33 +00:00
David E. O'Brien
b0e56cde37 * Use sys/sys/random.h rather than a i386 specific one.
* There was nothing that should be machine dependant about
  i386/isa/random_machdep.c, so it is now sys/kern/kern_random.c.
2000-04-24 17:30:08 +00:00
Garrett Wollman
1a11e63e1d A couple months ago, Kirk and I were doing a walkthrough of the radix-tree
search routine, and scratching our heads over why it was so obfuscated.
This delta fixes a number of confusing style bugs and renames several
structure members to have more meaningful names.  There remain a number
of odd control-flow structures.  These changes do not affect the generated
code.
2000-04-23 04:00:00 +00:00
Guido van Rooij
d91a068efb IOCGIFCONF once and for all. Sometimes the ifc_len variable
would be returned with a wrong value.
While we're here, get rid of unnecessary panic call.

PR:		17311, 12996, 14457
Submitted by:	Patrick Bihan-Faou <patrick@mindstep.com>,
		Kris Kennaway <kris@FreeBSD.org>
2000-04-21 17:48:48 +00:00
Poul-Henning Kamp
3389ae9350 Remove ~25 unneeded #include <sys/conf.h>
Remove ~60 unneeded #include <sys/malloc.h>
2000-04-19 14:58:28 +00:00
Warner Losh
0d5c223da4 Awi driver, ported from NetBSD from Atsushi Once-san.
From the README:
	Any IEEE 802.11 cards use AMD Am79C930 and Harris (Intersil) Chipset
	with PCnetMobile firmware by AMD.
	   BayStack 650   1Mbps Frequency Hopping PCCARD adapter
	   BayStack 660   2Mbps Direct Sequence PCCARD adapter
	   Icom SL-200    2Mbps Direct Sequence PCCARD adapter
	   Melco WLI-PCM  2Mbps Direct Sequence PCCARD adapter
	   NEL SSMagic    2Mbps Direct Sequence PCCARD adapter
	   Netwave AirSurfer Plus
			  1Mbps Frequency Hopping PCCARD adapter
	   Netwave AirSurfer Pro
			  2Mbps Direct Sequence PCCARD adapter

Known Problems:
	WEP is not supported.
	Does not create IBSS itself.
	Cannot configure the following on FreeBSD:
		selection of infrastructure/adhoc mode
		ESSID
		...

Submitted by: Atsushi Onoe <onoe@sm.sony.co.jp>
2000-04-06 02:48:48 +00:00
Gary Jennejohn
27173c13e8 Pass me the pointy hat.
It was not a good idea to remove csu_header from struct cspace, it had
ramifications which I didn't notice.

Restore src/usr.sbin/ppp/slcompress.h to the way it was, since MAX_HDR
was already defined as 128 there and it's a user program anyway.

In sys/net/slcompress.h make MAX_HDR 128 intead of MLEN to avoid
bloat.

My apologies for any inconvenience.
2000-04-04 09:20:53 +00:00
Gary Jennejohn
8810489433 Nuke csu_hdr from struct cspace. csu_hdr is not used anywhere in the
tree. This considerably reduces unnecessary bloat in struct slcompress.

I'm running with this change right now and have seen no negative
side-effects.

On my sytem this reduced kernel BSS by about 25KB.

Submitted by:	bde
Approved by:	brian for user-ppp
2000-04-03 19:54:33 +00:00
Jonathan Lemon
db4f9cc703 Add support for offloading IP/TCP/UDP checksums to NIC hardware which
supports them.
2000-03-27 19:14:27 +00:00
Philippe Charnier
46a32e616a Remove duplicate word 2000-03-26 15:24:53 +00:00
Larry Lile
b149dd6c66 o Replace most magic numbers related to token ring with #defines
from iso88025.h.

o Add minimal llc support to iso88025_input.

o Clean up most of the source routing code.

* Submitted by: Nikolai Saoukh <nms@otdel-1.org>
2000-03-19 21:34:39 +00:00
Robert Watson
de5d99354f The advent of if_detach, allowing interface removal at runtime, makes it
possible for a panic to occur if BPF is in use on the interface at the
time of the call to if_detach.  This happens because BPF maintains pointers
to the struct ifnet describing the interface, which is freed by if_detach.

To correct this problem, a new call, bpfdetach, is introduced.  bpfdetach
locates BPF descriptor references to the interface, and NULLs them.  Other
BPF code is modified so that discovery of a NULL interface results in
ENXIO (already implemented for some calls).  Processes blocked on a BPF
call will also be woken up so that they can receive ENXIO.

Interface drivers that invoke bpfattach and if_detach must be modified to
also call bpfattach(ifp) before calling if_detach(ifp).  This is relevant
for buses that support hot removal, such as pccard and usb.  Patches to
all effected devices will not be committed, only to if_wi.c, due to
testing limitations.  To reproduce the crash, load up tcpdump on you
favorite pccard ethernet card, and then eject the card.  As some pccard
drivers do not invoke if_detach(ifp), this bug will not manifest itself
for those drivers.

Reviewed by:	wes
2000-03-19 05:42:34 +00:00
Robert Watson
8ed3828c3b Introduce a new bd_seesent flag to the BPF descriptor, indicating whether or
not the current BPF device should report locally generated packets or not.
This allows sniffing applications to see only packets that are not generated
locally, which can be useful for debugging bridging problems, or other
situations where MAC addresses are not sufficient to identify locally
sourced packets.  Default to true for this flag, so as to provide existing
behavior by default.

Introduce two new ioctls, BIOCGSEESENT and BIOCSSEESENT, which may be used
to manipulate this flag from userland, given appropriate privilege.

Modify bpf.4 to document these two new ioctl arguments.

Reviewed by:	asmodai
2000-03-18 06:30:42 +00:00
Yoshinobu Inoue
4739b8076f IPv6 6to4 support.
Now most big problem of IPv6 is getting IPv6 address
   assignment.
   6to4 solve the problem. 6to4 addr is defined like below,

          2002: 4byte v4 addr : 2byte SLA ID : 8byte interface ID

   The most important point of the address format is that an IPv4 addr
   is embeded in it. So any user who has IPv4 addr can get IPv6 address
   block with 2byte subnet space. Also, the IPv4 addr is used for
   semi-automatic IPv6 over IPv4 tunneling.

   With 6to4, getting IPv6 addr become dramatically easy.
   The attached patch enable 6to4 extension, and confirmed to work,
   between "Richard Seaman, Jr." <dick@tar.com> and me.

Approved by: jkh

Reviewed by: itojun
2000-03-11 11:17:24 +00:00
Archie Cobbs
33d0e2a76d The "sdl_family" field in a "struct sockaddr_dl" will be equal
to AF_LINK, not AF_DLI, as stated in the comment. Fix the comment.

Reviewed by:	wollman
2000-03-01 02:46:25 +00:00
Guido van Rooij
b3f1e629e9 This fixes a problem where the SIOCGIFCONF ioctl goes wrong. This
is triggered when qmail is used with INET6 enabled.  The bug
manifests itself in that the space variable can become negative
and that in the comparison in the guards of the 2 loops, this was
not noticed because sizeof() returns an unsigned and thus the signed
variable gets promoted to unsigned. I decided not to make space
unsigned because I think we should guard against this from happening.
Thus panic() in case space becomes negative.

Approved by:	jkh
2000-02-28 19:30:25 +00:00
Yoshinobu Inoue
90da21c697 Wrap if_up() by splnet.
Approved by: jkh

Submitted by: peter
2000-02-27 18:36:30 +00:00
Andrey A. Chernov
df2ef4c180 Fix possible SLIOCSUNIT panic
PR:		16564
Submitted by:	ru
Approved by:	jkh
2000-02-20 21:03:53 +00:00
Matthew N. Dodd
8d5d0412c0 Track if_i{bytes,packets,errors}.
Approved by: 	jkh
2000-02-16 04:04:36 +00:00
Peter Wemm
242c5536ea Clean up some loose ends in the network code, including the X.25 and ISO
#ifdefs.  Clean out unused netisr's and leftover netisr linker set gunk.
Tested on x86 and alpha, including world.

Approved by:	jkh
2000-02-13 03:32:07 +00:00
Luigi Rizzo
25a3a898ca Update bridging code to the one already in -stable (this was
forgotten some time ago...).

Approved-by: jordan
2000-02-08 14:53:55 +00:00
Matthew N. Dodd
5326b23cd6 m_pullup() frees the supplied mbuf on failure; we don't need to try
and do this ourselves.

Approved by:	jkh
Noticed by:	Mike Spengler <mks@networkcs.com>
2000-02-07 06:18:38 +00:00
Matthew N. Dodd
4af90a4da4 Make sure that the entire header is in the first mbuf before we
attempt to copy the ethernet header forward and otherwise encapsulate
a packet for output.

This fixes the panic when using VLAN devices on hardware that doesn't
do 802.1Q tagging onboard.  (That is to say, all drivers except the Tigon.)

My tests consisted of telnet, ttcp, and a pingflood of packets
between 1 and 1600 (plus headers) bytes.

MFC to follow in 1 week.

Approved by:	jkh
2000-02-03 07:44:39 +00:00
Yoshinobu Inoue
3411310dfb Add workaround for fxp issue at interface initialization with IPv6.
Some LAN card chip for fxp is known to cause problem at
  interface initialization with IPv6 enabled. It happens at
  some delicate timing.
  And also, just adding some DELAY before IPv6 address
  autoconfiguration is known to avoid the problem.

  Complete fix is changing the driver not to use interrupt at
  multicast filter initialization, but trying such change in
  this stage will be dangerous.

  So I add some DELAY() only inside #ifdef INET6 part,
  as temporal workaround only for 4.0.

Approbed by: jkh

Noticed by: Mattias Pantzare <pantzer@ludd.luth.se>

Obtained from: openbsd-tech mailing list
2000-02-01 15:49:37 +00:00
Peter Wemm
e0c121beaf Remove #if NGIF > 0 and #if NFAITH > 0 as config already checks this. 2000-01-29 18:10:39 +00:00
Peter Wemm
cef8bf096f Remove some #if NFOO > 0 that are always true because of config rules. 2000-01-29 16:56:24 +00:00
Peter Wemm
ff76332c49 Fix this so LINT compiles. There is no way this could have worked if
tested with LINT.  I've put back netatm/kern_include.h and maked it
with a fixme!, otherwise NETISR_ATM isn't defined as ATM_KERNEL isn't
defined.  Defining that exposes a whole bunch of other dependencies.. :-(
2000-01-29 16:13:08 +00:00
Brian Somers
2108d4bd92 Remove unused includes 2000-01-29 01:10:24 +00:00
Yoshinobu Inoue
899ce4f40c Count AF_INET6 attachement to routing socket.
Obtained from: KAME project
2000-01-28 20:10:51 +00:00
Brian Somers
6af3fd8d22 Redo the intrq.c idea as
int family_enqueue(sa_family_t, struct mbuf *);
2000-01-27 23:37:39 +00:00
Brian Somers
367d34f853 Move the *intrq variables into net/intrq.c and unconditionally
include this in all kernels.  Declare some const *intrq_present
variables that can be checked by a module prior to using *intrq
to queue data.

Make the if_tun module capable of processing atm, ip, ip6, ipx,
natm and netatalk packets when TUNSIFHEAD is ioctl()d on.

Review not required by: freebsd-hackers
2000-01-24 20:39:02 +00:00
Ruslan Ermilov
48f71763a8 Notify user processes about interface's MTU change.
Reviewed by:	wollman, freebsd-net
2000-01-24 08:53:39 +00:00
Boris Popov
5d94d71cd9 Allow if_ef driver to be compiled into kernel. 2000-01-23 03:35:11 +00:00
Brian Somers
43e8def200 Implement TUN[GS]IFHEAD ioctls. Passing a non-zero int to TUNSIFHEAD
tells that tun unit to prepend a four byte address family to packets
queued for tunread() and to expect a four byte address family at the
front of data received by tunwrite().

We queue any protocol received from the interface for tunread(), but
only accept INET, INET6, IPX and NETATALK from tunwrite().  There is
support for Xerox's NS stuff, but AFAICT config(8) doesn't ever
define NS.
2000-01-23 01:47:12 +00:00
Brian Somers
bbdecb957c Add a new TUNSIFPID ioctl to update the tun_pid (recorded in
tunopen) with the current pid.
2000-01-21 00:31:43 +00:00
Poul-Henning Kamp
eba2a1aeb9 |The hard limit for the BPF buffer size is 32KB, which appears too low
|for high speed networks (even at 100Mbit/s this corresponds to 1/300th
|of a second). The default buffer size is 4KB, but libpcap and ipfilter
|both override this (using the BIOCSBLEN ioctl) and allocate 32KB.
|
|The following patch adds an sysctl for bpf_maxbufsize, similar to the
|one for bpf_bufsize that you added back in December 1995. I choose to
|make the default for this limit 512KB (the value suggested by NFR).

Submitted by:	se
Reviewed by:	phk
2000-01-15 19:46:12 +00:00
Yoshinobu Inoue
66810dd0c3 Clear ro->ro_rt just after RTFREE().
Pleases let me make sure that no one touch the invalid ro_rt pointer,
  after splx(s) and before next ro_rt initialization.
  Though usually this seems to be already called at splnet,
  I still sometime experience kernel crash at rtfree() in my
  INET6 enabled environment where IPv6 connection is frequently used.
  (Off-course, it might be just due to another bug.)
2000-01-15 07:27:12 +00:00
Yoshinobu Inoue
b540203735 cosmetic change: sort function prototypes
Specified by: bde
2000-01-15 05:06:14 +00:00
Yoshinobu Inoue
c3a5e52033 -K&R fix for some prototype declaration
-fix some comments for #endif to match them with their #ifndef

Submitted by: bde
2000-01-15 04:57:12 +00:00
Bill Paul
a0067d7b89 Attempt to fix a problem with receiving packets on USB ethernet interfaces.
Packets are received inside USB bulk transfer callbacks, which run at
splusb() (actually splbio()). The packet input queues are meant to be
manipulated at splimp(). However the locking apparently breaks down under
certain circumstances and the input queues can get trampled.

There's a similar problem with if_ppp, which is driven by hardware/tty
interrupts from the serial driver, but which must also manipulate the
packet input queues at splimp(). The fix there is to use a netisr, and
that's the fix I used here. (I can hear you groaning back there. Hush up.)

The usb_ethersubr module maintains a single queue of its own. When a
packet is received in the USB callback routine, it's placed on this
queue with usb_ether_input(). This routine also schedules a soft net
interrupt with schednetisr(). The ISR routine then runs later, at
splnet, outside of the USB callback/interrupt context, and passes the
packet to ether_input(), hopefully in a safe manner.

The reason this is implemented as a separate module is that there are
a limited number of NETISRs that we can use, and snarfing one up for
each driver that needs it is wasteful (there will be three once I get
the CATC driver done). It also reduces code duplication to a certain
small extent. Unfortunately, it also needs to be linked in with the
usb.ko module in order for the USB ethernet drivers to share it.

Also removed some uneeded includes from if_aue.c and if_kue.c

Fix suggested by: peter
Not rejected as a hairbrained idea by: n_hibma
2000-01-10 23:12:54 +00:00
Yoshinobu Inoue
d664bbb749 Remove BROADCAST flag from faith interface,
-it not seems to be necessary
 -to avoid dhcp messages or something like that sent to faith interface

The problem reported by: Jim Bloom <bloom@acm.org>
2000-01-09 04:35:39 +00:00
Yoshinobu Inoue
0d0f9d1ed6 Prevent kernel panic at ifconfig up after Note PC resume.
Submitted by: imp, kuriyama
Reviewed by: imp
1999-12-30 18:29:55 +00:00
Peter Wemm
664a31e496 Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot).  This is consistant with the other
BSD's who made this change quite some time ago.  More commits to come.
1999-12-29 04:46:21 +00:00
Ruslan Ermilov
920eb79f55 Make cloning mask sockaddr (genmask) possible.
PR:		kern/3061
Reviewed by:	wollman
1999-12-28 08:38:01 +00:00
Yoshinobu Inoue
6a800098cc IPSEC support in the kernel.
pr_input() routines prototype is also changed to support IPSEC and IPV6
chained protocol headers.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-22 19:13:38 +00:00
Brian Feldman
d25f3712b7 M_PREPEND-related cleanups (unregisterifying struct mbuf *s). 1999-12-19 01:55:37 +00:00
Brian Feldman
ee1dd7c481 Fix a broken macro usage. It had no semicolon.
Noticed by:	eivind
1999-12-18 23:26:26 +00:00
Warner Losh
5500d3bedf Two more fixes to if_detach. These are generic to all interfaces and
do not pollute the interface further.

o Run if_detach at splnet().
o Creatively swipe the relevant parts of the netatm atm_nif_detach
  which will delete the relevant references to the interface going
  away.
1999-12-17 06:46:07 +00:00
Boris Popov
4f93599fba Bring up an if_ef driver which allows support for four ethernet
frame types. Currently it supports only IPX protocol and doesn't
affect existing functionality when not loaded.

Reviewed by:	Ollivier Robert <roberto@keltia.freenix.fr>
1999-12-13 16:24:22 +00:00
Boris Popov
8b7805e44e Allow ifunit() routine to understand names like ed0f2. Also
fix a bug caused by using bcmp() instead of strcmp().

Reviewed by:	Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
1999-12-13 15:57:11 +00:00
Jordan K. Hubbard
c0230c1b3d The current code incorrectly assumes that all vlans
are configured, and/or associated with a parent device.  If you
receive a frame for a VLAN that's not in the list, you walk off
the end of the list.  Boom.

Submitted by:	C. Stephen Gunn <csg@waterspout.com>
PR:		15291
1999-12-13 01:57:00 +00:00
Jordan K. Hubbard
ae290324a4 sys/net/if_vlan.c fails to maintain the IFF_RUNNING flag on the
vlan interfaces it manages.  This prevents the interface from
actually sending or receiving data.

Submitted by:	C. Stephen Gunn <csg@waterspout.com>
PR:		15290
1999-12-13 01:38:14 +00:00
Warner Losh
aa6be122fd Add some gross ad-hock hacks to increase stability of if_detach:
o be more careful about clearing addresses (this isn't a kludge)
o For AF_INET interfaces, call SIOCDIFFADDR to remove last(?) bit
  of cruft.

Special cases for AF_INET shouldn't be here, but I didn't see a good
generic way of doing this.  If I missed something, please let me know.

This gross hack makes pccard ejection stable for ethernet cards.

Submitted by: Atushi Onoe-san
1999-12-10 16:31:25 +00:00
John Polstra
68f956b85e Fix a route table leak in rtalloc() and rtalloc_ign(). It is
possible for ro->ro_rt to be non-NULL even though the RTF_UP flag
is cleared.  (Example: a routing daemon or the "route" command
deletes a cloned route in active use by a TCP connection.)  In that
case, the code was clobbering a reference to the routing table
entry without decrementing the entry's reference count.

The splnet() call probably isn't needed, but I haven't been able
to prove that yet.  It isn't significant from a performance standpoint
since it is executed very rarely.

Reviewed by:	wollman and others in the freebsd-current mailing list
1999-12-09 17:09:37 +00:00
Yoshinobu Inoue
ae5bcbff16 rtcalloc() is removed because it turned out not to be necessary for FreeBSD.
(It was added as a part of KAME patch)

Specified by: jdp@polstra.com
1999-12-09 08:56:50 +00:00
Yoshinobu Inoue
cfa1ca9dfa udp IPv6 support, IPv6/IPv4 tunneling support in kernel,
packet divert at kernel for IPv6/IPv4 translater daemon

This includes queue related patch submitted by jburkhol@home.com.

Submitted by: queue related patch from jburkhol@home.com
Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-07 17:39:16 +00:00
Julian Elischer
1f8ffa4bca Make the stub routines have the same prototypes as the real bpf
routines.
1999-12-03 09:59:02 +00:00
Archie Cobbs
dcb129d597 Add 'const' to the bpf_filter() and bpf_validate() prototypes.
Remove a stale comment from bpf_validate().
1999-12-02 19:36:05 +00:00
Archie Cobbs
f8307e1233 Add two new generic control messages, NGM_ASCII2BINARY and
NGM_BINARY2ASCII, which convert control messages to ASCII and back.
This allows control messages to be sent and received in ASCII form
using ngctl(8), which makes ngctl a lot more useful.

This also allows all the type-specific debugging code in libnetgraph
to go away -- instead, we just ask the node itself to do the ASCII
translation for us.

Currently, all generic control messages are supported, as well as
messages associated with the following node types: async, cisco,
ksocket, and ppp.

See /usr/share/examples/netgraph/ngctl for an example of using this.

Also give ngctl(8) the ability to print out incoming data and
control messages at any time.  Eventually nghook(8) may be subsumed.

Several other misc. bug fixes.

Reviewed by:	julian
1999-11-30 02:45:32 +00:00
Julian Elischer
62811dad5a Expand the field width for subtypes. We had already overflowed it
by 2 with people just adding numbers on the end of the ethernet subtypes.
We now have an additional 14 subtypes available in ethernet.
Use one of them immediatly for homePNA.

Reviewed by: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
1999-11-24 02:40:12 +00:00
Brian Somers
a86ab8174f Only emit the ``wrong ifa'' message if the matching interface
is neither IFF_LOOPBACK or IFF_POINTOPOINT.  It's quite common
(and probably more correct) to route local IP numbers via lo0
and it makes configuration easier to assign the hostname address
to local POINTOPOINT links too.

This message usually remains hidden because the loopback interface
gets the highest interface number at boot time, but when the
ethernet interface is added later, the message can get pretty
annoying.

Also, fix a typo.

Not objected to by: freebsd-net
1999-11-23 22:30:01 +00:00
Yoshinobu Inoue
82cd038d51 KAME netinet6 basic part(no IPsec,no V6 Multicast Forwarding, no UDP/TCP
for IPv6 yet)

With this patch, you can assigne IPv6 addr automatically, and can reply to
IPv6 ping.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-11-22 02:45:11 +00:00
Archie Cobbs
da8c951da4 Add some more comments to the sl_compress_tcp() function. 1999-11-15 20:17:04 +00:00
Julian Elischer
ecf33d87b2 YUCK!
m_prepend doesn't fix m_pkthdr.len, use M_PREPEND instead, which does..
(Netgraph only)
1999-11-15 03:49:35 +00:00
Julian Elischer
2b75f79579 Fix screwup on synthesising incoming ethernet header in Netgraph mode.
Submitted by: brian@freebsd.org
1999-11-14 10:16:40 +00:00
Poul-Henning Kamp
422fd76f84 Set the queue length. 1999-11-12 19:30:08 +00:00
Julian Elischer
e03b02a346 Oops forgot to put the source MAC address on outgoing packets! 1999-11-11 22:23:58 +00:00
Yoshinobu Inoue
76429de41a KAME related header files additions and merges.
(only those which don't affect c source files so much)

Reviewed by: cvs-committers
Obtained from: KAME project
1999-11-05 14:41:39 +00:00
Archie Cobbs
1dd0feaaab Fix bug in BIOCGETIF ioctl() where it would return a bogus interface
name if the interface unit number was greater than 9.
1999-11-03 21:32:28 +00:00
Julian Elischer
ae5a83bcb5 Use typedefs for node methods. 1999-11-01 10:18:36 +00:00
Joerg Wunsch
83cc7ae865 When getting a RCN event in state ACK_RCVD, RFC 1661 demands that we
go to REQ_SENT (and we probably should also log this since it should
only happen in a cross-linked connection).

Submitted by:	Mark Tinguely <tinguely@plains.NoDak.edu>
1999-10-29 17:57:42 +00:00
Archie Cobbs
3893348e48 Add a comment before sl_compress_tcp() regarding mbuf assumptions. 1999-10-29 17:00:18 +00:00
Ruslan Ermilov
273e9b94a1 Re-allocate cblocks after changing the slip unit number. 1999-10-28 16:04:59 +00:00
Julian Elischer
021823c35c Minor hack in the netgraph interface to ethernets. 1999-10-26 11:40:23 +00:00
Julian Elischer
4cf49a4355 Whistle's Netgraph link-layer (sometimes more) networking infrastructure.
Been in production for 3 years now. Gives Instant Frame relay to if_sr
and if_ar drivers, and PPPOE support soon. See:
ftp://ftp.whistle.com/pub/archie/netgraph/index.html
for on-line manual pages.

Reviewed by: Doug Rabson (dfr@freebsd.org)
Obtained from:  Whistle CVS tree
1999-10-21 09:06:11 +00:00
Mike Smith
114ae644b5 Implement pseudo_AF_HDRCMPLT, which controls the state of the 'header
completion' flag.  If set, the interface output routine will assume that
the packet already has a valid link-level source address.  This defaults
to off (the address is overwritten)

PR:		kern/10680
Submitted by:	"Christopher N . Harrell" <cnh@mindspring.net>
Obtained from:	NetBSD
1999-10-15 05:07:00 +00:00
Peter Wemm
d42da05b12 Zap #include "tun.h" (for NTUN) - which isn't used anymore. 1999-09-27 00:55:29 +00:00
Peter Wemm
18e2e348fb Minor tidy up of PPP_FILTER and NBPF stuff. Don't generate bpf.h in the
module and don't #include "bpf.h".
1999-09-26 18:44:29 +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
ae8e1d08d7 This patch clears the way for removing a number of tty related
fields in struct cdevsw:

        d_stop          moved to struct tty.
        d_reset         already unused.
        d_devtotty      linkage now provided by dev_t->si_tty.

These fields will be removed from struct cdevsw together with
d_params and d_maxio Real Soon Now.

The changes in this patch consist of:

        initialize dev->si_tty in *_open()
        initialize tty->t_stop
        remove devtotty functions
        rename ttpoll to ttypoll
        a few adjustments to these changes in the generic code
        a bump of __FreeBSD_version
        add a couple of FreeBSD tags
1999-09-25 16:21:39 +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
Ruslan Ermilov
24e9bc7fca Don't call if_up() here, just set IFF_UP.
PR:		12251
Reviewed by:	wollman
1999-09-14 01:17:30 +00:00
Ruslan Ermilov
97998e86db Add comments, fix typos.
Reviewed by:	wollman
1999-09-14 00:33:23 +00:00
Nick Sayer
39aca5c05e Fix kernel compile with BRIDGE, but without DUMMYNET 1999-09-11 18:54:41 +00:00
Sheldon Hearn
cd9e4cab46 For every "promiscuous mode enabled" message printed for an interface,
print a matching "disabled" message when we drop out of promiscuous
mode for that interface.

Discussed on the freebsd-hackers mailing list.
1999-08-30 11:55:30 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Peter Wemm
2bb0e3300a Hopefully make IFMEDIA_DEBUG compile. if_xname[] is a NetBSD addition,
we need if_name, if_unit.  (maybe we should pick up if_xname[] ?)

Pointed out by: jkb@yahoo-inc.com
1999-08-18 13:13:01 +00:00
Poul-Henning Kamp
c6ba8fec16 Give if_tun the "almost clone" makeover. 1999-08-15 09:54:57 +00:00
Poul-Henning Kamp
bd3a53203f Give BPF the "almost-clone" update. If you need more of them, make
more entries in /dev and be happy you don't need to recompile your
kernel.
1999-08-15 09:38:21 +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
5abb82ea11 Back out redundant checks
Pointed out by: bde
1999-08-06 16:46:29 +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
Bruce Evans
712020a15a Fixed English errors, spelling errors and formatting errors in rev.1.51
and rev.1.53.
1999-07-05 12:00:05 +00:00
Bruce Evans
edff69904f Quick fix for breakage of bounds checking in rev.1.12. Only one
of the additional checks in rev.1.12 was wrong.  The others are a
bit inconsistent and are probably unnecessarily pessimal.  Checking
for overflow of addition, if necessary at all, should be done in
bpf_validate().

PR:	12484
1999-07-04 08:07:35 +00:00
Peter Wemm
e916dd0f12 Fix a printf int/long problem on the Alpha 1999-07-01 22:14:51 +00:00
Peter Wemm
5cda71067d Fix two easy warnings when using BRIDGE without IPFIREWALL. 1999-07-01 15:07:08 +00:00
Mike Smith
64e41ba7c8 Increase the size of the route reference count from 15 bits to 31 bits.
This doesn't change the size or alignment of the structure on either i386
or Alpha, and thus should be binary-compatible (modulo problems with old
applications and routes with more than 2^15 references).

Reviewed by:	peter
1999-06-30 23:11:15 +00:00
Pierre Beyssac
cce2eb6a97 Never return the root node itself from rn_match(); return NULL instead.
This caused a panic in rtfreee() called with a root node from the
routing socket code (when processing a RTM_GET message looking for
the default route while there is none).

Since no existing code seems to have any use getting the root node
from rn_match(), it seems cleaner never to return it rather than
check for this condition at the caller's.

PR:		kern/12265
1999-06-25 13:43:30 +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
2f55ead758 typo in previous commit 1999-06-06 09:28:01 +00:00
Poul-Henning Kamp
cf4b937128 Introduce IFF_SMART bit.
This means that the driver will add/delete routes when it knows it is
up/down, rather than have the generic code belive it is up if configured.

This is probably most useful for serial lines, although many PHY chips
could probably tell us if we're connected to the cable/hub as well.
1999-06-06 09:17:51 +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
Pierre Beyssac
e3c1388bba PR: kern/10570
Submitted by:	adrian@freebsd.org

Change reference count in struct ifaddr to a u_int, to be able
to handle more than 2^16 routes to the same interface.

Fix suggested by Andrew Bangs <andrewb@demon.net> in PR kern/10570.
Tested by <adrian@freebsd.org> and me under -current.
1999-05-16 17:09:20 +00:00
Kenjiro Cho
0ce8bd9571 clean up en atm driver
o fix DDB support
   - include "opt_ddb.h"
   - fix Debugger() arg
   pointed out by bde

 o back out pvc shadow interface support
   - it is currently not used
   - to make it easier to merge another implementation

 o misc minor cleanup
1999-05-08 14:23:40 +00:00
Poul-Henning Kamp
cb40a67f2b Fix some disordering I introduced with the jail code. 1999-05-08 07:00:04 +00:00
Poul-Henning Kamp
4be2eb8c49 I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.

Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)

DEVFS will eventually benefit from this change too.
1999-05-08 06:40:31 +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
Luigi Rizzo
eaa726bed6 Free the dummynet descriptor in ip_dummynet, not in the called
routines. The descriptor contains parameters which could be used
within those routines (eg. ip_output() ).

On passing, add IPPROTO_PGM entry to netinet/in.h
1999-05-04 16:20:33 +00:00
Luoqi Chen
cb64988f42 Postpone route_init() until all domains are attached. 1999-04-29 03:22:19 +00:00
Poul-Henning Kamp
75c1354190 This Implements the mumbled about "Jail" feature.
This is a seriously beefed up chroot kind of thing.  The process
is jailed along the same lines as a chroot does it, but with
additional tough restrictions imposed on what the superuser can do.

For all I know, it is safe to hand over the root bit inside a
prison to the customer living in that prison, this is what
it was developed for in fact:  "real virtual servers".

Each prison has an ip number associated with it, which all IP
communications will be coerced to use and each prison has its own
hostname.

Needless to say, you need more RAM this way, but the advantage is
that each customer can run their own particular version of apache
and not stomp on the toes of their neighbors.

It generally does what one would expect, but setting up a jail
still takes a little knowledge.

A few notes:

   I have no scripts for setting up a jail, don't ask me for them.

   The IP number should be an alias on one of the interfaces.

   mount a /proc in each jail, it will make ps more useable.

   /proc/<pid>/status tells the hostname of the prison for
   jailed processes.

   Quotas are only sensible if you have a mountpoint per prison.

   There are no privisions for stopping resource-hogging.

   Some "#ifdef INET" and similar may be missing (send patches!)

If somebody wants to take it from here and develop it into
more of a "virtual machine" they should be most welcome!

Tools, comments, patches & documentation most welcome.

Have fun...

Sponsored by:   http://www.rndassociates.com/
Run for almost a year by:       http://www.servetheweb.com/
1999-04-28 11:38:52 +00:00
Mike Smith
f8dc47162a Allow loadable interface drivers with BPF support to be loaded into a kernel
that doesn't have it.  This is achieved by having minimal do-nothing stubs
enabled when there are no bpfilter devices configured.

Driver modules should be built with BPF enabled for maximum
convenience (but can be built without it for maximum performance).
1999-04-28 01:18:13 +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
Peter Wemm
e306e8ea66 Temporary hack. The radix code shouldn't need this, it should be
able to expand the zeros, ones etc masks on the fly.  It seems a good
number of domains don't set the rn_maxkey variable anyway, and because
this is a domain itself, there is no guarantee we've been called after
a protocol that actually has set it (ie: inet), so start with a maxkey
of a relatively sane size as a base point until it can adapt on the fly.
1999-04-26 09:05:31 +00:00
Peter Wemm
8ba5bdae2a Protect the ifinit() function's internals with splimp() for safety since
it used to be that way. I'm not sure that it's needed, but it does
walk the ifp list..

Incidently, there's nothing to sanity check the ifq_maxlen on loaded
interfaces..
1999-04-26 09:02:40 +00:00
Peter Wemm
61a6c2e81d Minor seatbelt tweak. The init code used to be splimp() protected,
maintain that in case.
1999-04-26 09:00:47 +00:00
Peter Wemm
2ef43b0971 Make NETISR_SET use a SYSINIT() rather than a linker set. 1999-04-26 08:52:16 +00:00
Peter Wemm
2cbbaa27c7 Fix my breakage of BRIDGE compiling option without IPFIREWALL..
(Note that if you have bridge compiled in and then kldload ipfw, bridge
 won't automatically use it - knowledge of ipfw/dummynet is compiled in)
1999-04-21 18:23:00 +00:00
Peter Wemm
66e55756b5 Tidy up some stray / unused stuff in the IPFW package and friends.
- unifdef -DCOMPAT_IPFW  (this was on by default already)
- remove traces of in-kernel ip_nat package, it was never committed.
- Make IPFW and DUMMYNET initialize themselves rather than depend on
  compiled-in hooks in ip_init().  This means they initialize the same
  way both in-kernel and as kld modules.  (IPFW initializes now :-)
1999-04-20 13:32:06 +00:00
Peter Wemm
6182fdbda8 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00
Eivind Eklund
d108ff0b76 Break long lines that I introduced in a previous commit. 1999-04-11 02:52:31 +00:00
Bill Paul
4a408dcb9e Add missing SYSCTL_DECL(_net_link); required by newer sysctl implementation.
Noticed by: Matthew Dodd <winter@jurai.net>
1999-04-07 23:26:43 +00:00
John Polstra
182d6068cd Add a missing declaration that broke the compilation of this file. 1999-04-03 22:36:56 +00:00
Nick Sayer
cd965a7436 Merge from RELENG_2_2, per luigi. Fixes the ntoh?() issue for the
firewall code when called from the bridge code.

PR:		10818
Submitted by:	nsayer
Obtained from:	luigi
1999-03-30 23:45:14 +00:00
Poul-Henning Kamp
da3b4fb7ee rganize the various modes (CISCO/AUTO/DEMAND/LEASED) a little bit better,
centralize the code.

Remember to call TLF/TLS on the hardware in CISCO mode.
1999-03-30 13:28:26 +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
Bill Paul
97ed1257f9 Grrr... botched remote commit. Let's try this again: vlan updates,
take two.
1999-03-15 01:22:01 +00:00
Bill Paul
f731f10490 Updates for vlan stuff:
- add support for devices that do vlan tag insertion/deletion in firmware
- add multicast support
- add vlan_unconfig() to complement vlan_config()
- update ifconfig(8) to configure vlan interfaces (vlan tag and
  parent device)

Also fix a small bug in ifconfig; sometimes sa_family is overwritten
by ioctls.

Reviewed by: wollman
1999-03-15 01:17:26 +00:00
Julian Elischer
fda82fc2b9 Submitted by: Larry Lile
Move the Olicom token ring driver to the officially sanctionned location of
/sys/contrib. Also fix some brokenness in the generic token ring support.

Be warned that if_dl.h has been changed and SOME programs might
like recompilation.
1999-03-10 10:11:43 +00:00
Bill Paul
6b3cb5936d Also add 1000baseSX, 1000baseLX, 1000baseCX and 1000baseTX media types. At
this point I don't know if there are any actual gigabit ethernet devices
that support media other than 1000baseSX (multi-mode fiber) but who knows.
1999-03-07 04:39:25 +00:00
Bill Paul
27ab138fcc Add 1000baseFX, 10baseSTP and 10baseFL media types. The 1000baseFX
type may become necessary soon. :)

Also add a couple of additional macros that NetBSD has which we don't.
Nothing in FreeBSD uses these (yet) so adding them in shouldn't hurt
anything.
1999-03-06 17:17:57 +00:00
KATO Takenori
69d66c1e4e The fe driver supports bridging, so added it to lists. 1999-02-25 10:48:31 +00:00
Poul-Henning Kamp
81f7312bfa Misplaces brace puts important code into debug section.
Reviewed by:	phk
Submitted by:	Stefan Bethke <stefan.bethke@hanse.de>
1999-02-23 15:08:44 +00:00
Dmitrij Tejblum
eff128828c Set ifq_maxlen. 1999-02-20 21:03:53 +00:00