Commit Graph

42 Commits

Author SHA1 Message Date
Ruslan Ermilov
920eb79f55 Make cloning mask sockaddr (genmask) possible.
PR:		kern/3061
Reviewed by:	wollman
1999-12-28 08:38:01 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +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
Matthew Dillon
831a80b0d5 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 22:42:27 +00:00
David Greenman
95b6073cd5 Fixed bug in RTM_ADD where rmx_locks weren't being set on the new route,
preventing "route add default 1.2.3.4 -lock -mtu 1500" from working as
expected (which is, BTW, to disable Path MTU Discovery).
1997-10-31 08:53:13 +00:00
Bruce Evans
55b211e3af Removed unused #includes. 1997-10-28 15:59:26 +00:00
Poul-Henning Kamp
a1c995b626 Last major round (Unless Bruce thinks of somthing :-) of malloc changes.
Distribute all but the most fundamental malloc types.  This time I also
remembered the trick to making things static:  Put "static" in front of
them.

A couple of finer points by:	bde
1997-10-12 20:26:33 +00:00
Peter Wemm
f8f6cbba92 Update network code to use poll support. 1997-09-14 03:10:42 +00:00
Bruce Evans
4d1d4912ae Added used #include - don't depend on <sys/mbuf.h> including
<sys/malloc.h> (unless we only use the bogusly shared M*WAIT flags).
1997-09-02 01:19:47 +00:00
Garrett Wollman
57bf258e3d Fix all areas of the system (or at least all those in LINT) to avoid storing
socket addresses in mbufs.  (Socket buffers are the one exception.)  A number
of kernel APIs needed to get fixed in order to make this happen.  Also,
fix three protocol families which kept PCBs in mbufs to not malloc them
instead.  Delete some old compatibility cruft while we're at it, and add
some new routines in the in_cksum family.
1997-08-16 19:16:27 +00:00
Julian Elischer
076d0761c4 An actual fix for the routing default crashes that
1/ is compatible with the old route(1) in case needed.
2/ actually fixes the problem while vetting bad user input.
note: I have already fixed route(1) so the problem shouldn't occur.
if it does. use 0.0.0.0/0 instead of the word 'default' :)
1997-07-18 11:44:24 +00:00
Mike Smith
9a969a6e41 Fix Julian's fixed fix. Routing is weird.
We need to accept at least one sockaddr with zero length, in order
to be able to set the default route.

Suggested by:	Phone conversation with Julian (sleep well!)
1997-07-17 09:21:34 +00:00
Julian Elischer
ff6d0a5916 Bungled cut/paste leaves kernel with page faults..
(read all about it!)
1997-07-16 14:55:14 +00:00
Julian Elischer
7f33a738c1 Finally track down the reason for some of my occasional kernel crashes.
Route(1) has a bug that sends a bad message to the kernel. The kernel
trusts it and crashes. Add some sanity checks so that
we don't trust the user quite as much any more.
(also add a comment in if_ethersubr.c)
1997-07-15 23:25:32 +00:00
Garrett Wollman
a29f300e80 The long-awaited mega-massive-network-code- cleanup. Part I.
This commit includes the following changes:
1) Old-style (pr_usrreq()) protocols are no longer supported, the compatibility
glue for them is deleted, and the kernel will panic on boot if any are compiled
in.

2) Certain protocol entry points are modified to take a process structure,
so they they can easily tell whether or not it is possible to sleep, and
also to access credentials.

3) SS_PRIV is no more, and with it goes the SO_PRIVSTATE setsockopt()
call.  Protocols should use the process pointer they are now passed.

4) The PF_LOCAL and PF_ROUTE families have been updated to use the new
style, as has the `raw' skeleton family.

5) PF_LOCAL sockets now obey the process's umask when creating a socket
in the filesystem.

As a result, LINT is now broken.  I'm hoping that some enterprising hacker
with a bit more time will either make the broken bits work (should be
easy for netipx) or dike them out.
1997-04-27 20:01:29 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Bill Fenner
3aa7200510 Make sure we have arguments to pass before calling ifaof_ifpforaddr
and ifa_ifwithroute.

This eliminates the panic seen in kern/2647, although it doesn't
address the fact that RTM_CHANGE can't change flags.
1997-02-04 03:14:35 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Garrett Wollman
477180fbc8 Use the new if_multiaddrs list for multicast addresses rather than the
previous hackery involving struct in_ifaddr and arpcom.  Get rid of the
abominable multi_kludge.  Update all network interfaces to use the
new machanism.  Distressingly few Ethernet drivers program the multicast
filter properly (assuming the hardware has one, which it usually does).
1997-01-13 21:26:53 +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
Garrett Wollman
294121822b Use queue macros for the list of interfaces. Next stop: ifaddrs! 1996-12-11 20:38:25 +00:00
Bill Fenner
1db1fffa03 Disallow host routes that point to themselves. These routes serve no
purpose, other than to get in the way of the ARP table and cause
"can't allocate llinfo" errors.

This change may cause gated or routed to start complaining when adding
such routes.  If so, these programs will need to be fixed to not try
to add these routes.

Reviewed by:	wollman
1996-07-10 01:34:36 +00:00
Gary Palmer
6ddbf1e299 Clean up various compiler warnings. Most (if not all) were benign
Reviewed by:	bde
1996-05-08 04:29:08 +00:00
David Greenman
2ee45d7d28 Move or add #include <queue.h> in preparation for upcoming struct socket
changes.
1996-03-11 15:13:58 +00:00
Poul-Henning Kamp
5204129576 All net.* sysctl converted now. 1995-11-16 19:00:27 +00:00
Julian Elischer
cc6a66f20e Reviewed by: julian and jhay@mikom.csir.co.za
Submitted by:	Mike Mitchell, supervisor@alb.asctmd.com

This is a bulk mport of Mike's IPX/SPX protocol stacks and all the
related gunf that goes with it..
it is not guaranteed to work 100% correctly at this time
but as we had several people trying to work on it
I figured it would be better to get it checked in so
they could all get teh same thing to work on..

Mikes been using it for a year or so
but on 2.0

more changes and stuff will be merged in from other developers now that this is in.

Mike Mitchell, Network Engineer
AMTECH Systems Corporation, Technology and Manufacturing
8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000
supervisor@alb.asctmd.com
1995-10-26 20:31:59 +00:00
Garrett Wollman
ed07cc7f09 Protect against routing socket messages with way-too-big address families.
Submitted by:	Keith Sklower by way of Paul Traina
1995-10-13 16:01:59 +00:00
Bruce Evans
4ab32c3430 Fix types of sysctl functions. Add prototypes. Cosmetic. 1995-10-09 04:06:28 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
David Greenman
c9a8415607 Fixed route reference count bug that squirmed in during the the
routing-socket code upgrade from Berkeley..

Submitted by:	Garrett Wollman via Peter Wemm via Cornell
1995-05-15 22:57:53 +00:00
Garrett Wollman
748e0b0acc Make networking domains drop-ins, through the magic of GNU ld. (Some day,
there may even be LKMs.)  Also, change the internal name of `unixdomain'
to `localdomain' since AF_LOCAL is now the preferred name of this family.
Declare netisr correctly and in the right place.
1995-05-11 00:13:26 +00:00
Garrett Wollman
78a8281095 Updated routing-socket code from Berkeley
Obtained from: Keith Bostic by way of Paul Traina
1995-05-10 16:48:52 +00:00
Bruce Evans
b5e8ce9f12 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'.  Fix all the bugs found.  There were no serious
ones.
1995-03-16 18:17:34 +00:00
Garrett Wollman
995add1a12 Add support for two separate cloning flags, one set by the lower layers,
and one set by the protocol family.  Also add another parameter to
rtalloc1() to allow for any interface flags to be ignored; currently
this is only useful for RTF_PRCLONING.  Get rid of rt_prflags and re-unite
with rt_flags.  Add T/TCP ``route metrics''.

NB: YOU MUST RECOMPILE `route' AND OTHER RELATED PROGRAMS AS A RESULT OF
THIS CHANGE.

This also adds a new interface parameter, `ifi_physical', which will
eventually replace IFF_ALTPHYS as the mechanism for specifying the
particular physical connection desired on a multiple-connection card.

NB: YOU MUST RECOMPILE `ifconfig' AND OTHER RELATED PROGRAMS AS A RESULT OF
THIS CHANGE.
1994-12-13 22:31:49 +00:00
Garrett Wollman
5df7296441 Fix a bug which caused panics when attempting to change just the flags of
a route.  (This still doesn't work, but it doesn't panic now.)  It looks
like there may be a number of incipient bugs in this code.

Also, get ready for the time when all IP gateway routes are cloning, which
is necessary to keep proper TCP statistics.
1994-10-11 23:16:38 +00:00
Poul-Henning Kamp
df4409487f Cosmetics: to silence gcc -wall. 1994-10-08 22:38:27 +00:00
Garrett Wollman
2624cf89f9 A number of bug-fixes inspired by Mark Treacy:
- Allow PPP to run multicasts natively.
- Deal properly with lots of similarly-named interfaces.
- Don't sign-extend if_flags.

NB: the last fix (to rtsock.c) must be reversed when we expand if_flags to a
reasonable size.

Submitted by:	Mark Treacy
1994-10-05 20:11:28 +00:00
Poul-Henning Kamp
c5789ba376 Moved m_copyback into uipc_mbuf.c 1994-10-04 06:50:01 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00