Commit graph

171 commits

Author SHA1 Message Date
Ugen J.S. Antsilevich 37afa1e829 Well..finally..this is the first part..it should take care of
matching IP options..Check and test this - i made only a couple
of rough tests and this could be buggy.. Ipaccounting can't use
IP Options (and i don't see any need to cound packets with specific
options either..)
More to come...
1995-10-01 21:52:50 +00:00
Garrett Wollman d7f570e630 Merge 4.4-Lite-2: update version number (we already have the same fixes).
Obtained from:	4.4BSD-Lite-2
1995-09-22 20:05:58 +00:00
Garrett Wollman 6dfab5b1e1 Merge 4.4-Lite-2: always check the UDP checksum if it is present, even
if we are not generating checksums.  (Save a test in the input path.)
1995-09-22 19:56:26 +00:00
Garrett Wollman f001bbb882 Correct spelling error in MTUDISC code. 1995-09-22 17:43:37 +00:00
Peter Wemm 4dc45a5fa1 Remove duplicate definition for tcps_persistdrop, as added by davidg some
time ago.  I left in Garrett's one, because his was in the 4.4-Lite-2
location, making any diffs just that little bit smaller.

I presume this choice means that netstat needs to be recompiled before
"netstat -s" will give a meaningful answer on tcp stats.
1995-09-22 07:40:18 +00:00
Garrett Wollman 25f26ad85a Merge with 4.4-Lite-2: fix bug that caused getsockopt of IP_HDRINCL
to fail.

Obtained from:	4.4BSD-Lite-2
1995-09-21 19:59:43 +00:00
Garrett Wollman 3271ad14d8 Merge 4.4-Lite-2 by updating the version number.
Obtained from:	4.4BSD-Lite-2
1995-09-21 18:04:43 +00:00
Garrett Wollman 425f123ed4 Merge 4.4-Lite-2: update some declarations that we don't support anyway.
Obtained from:	4.4BSD-Lite-2
1995-09-21 17:58:07 +00:00
Garrett Wollman 2469dd60b7 Merge 4.4-Lite-2: use M_NOWAIT in in_pcballoc(), and return EACCES rather
than EPERM on illegal attempt to bind a reserved port.

Obtained from:	4.4BSD-Lite-2
1995-09-21 17:55:49 +00:00
Garrett Wollman 2180b92513 Merge with 4.4-Lite-2. This is actually a 64-bit fix; the second parameter
to in_control() is sometimes a pointer, and sometimes an integer, so use
u_long rather than int.

Obtained from:	4.4BSD-Lite-2
1995-09-21 17:50:45 +00:00
Garrett Wollman ef91e5283e Merge with 4.4-Lite-2. This involves changing the version number and
moving a declaration around.

Obtained from:	4.4BSD-Lite-2
1995-09-21 17:39:51 +00:00
Garrett Wollman 6c52bc4648 Merge with 4.4-Lite-2. This just adds a couple of tcpstat entries which
we don't currently set, but might in the future.
1995-09-21 17:29:13 +00:00
Garrett Wollman f138387af1 Add support in TCP for Path MTU discovery. This is highly experimental
and gated on `options MTUDISC' in the source.  It is also practically
untested becausse (sniff!) I don't have easy access to a network with
an MTU of less than an Ethernet.  If you have a small MTU network,
please try it and tell me if it works!
1995-09-20 21:00:59 +00:00
Garrett Wollman 5cbf3e086c Initial back-end support for IP MTU discovery, gated on MTUDISC. The support
for TCP has yet to be written.
1995-09-18 15:51:40 +00:00
Garrett Wollman b6e3d50f4c Don't leak mbufs in an unusual error case in tcp_usrreq().
Reviewed by:	Andras Olah <olah@freebsd.org>
Obtained from:	Lite-2
1995-09-13 17:54:03 +00:00
Garrett Wollman 51823c3a93 If tcp_output() is unable to allocate space for a copy of the data waiting
to be sent, just clean up and return ENOBUFS rather than silently
proceeding without sending any of the data.  This makes it consistent
with the `#ifdef notyet' case immediately above.

Reviewed by:	Andras Olah <olah@freebsd.org>
Obtained from:	Lite-2
1995-09-13 17:36:31 +00:00
Garrett Wollman 2b758395ea Fix long-standing bug in ICMPPRINTFS code where NTOHL was used instead
of ntohl for printing IP addresses, by instead substituting inet_ntoa()
to produce human-readable output.

Obtained from:	4.4-Lite-2
1995-08-29 17:49:04 +00:00
Garrett Wollman 6adca7ad76 Fix some problems with multicast forwarding:
Garrett,

  Here are some patches for the rate limiting code.  It should be faster,
and in particular it doesn't leak malloc'd memory any more when rate_limit'ing
a phyint.

  It now uses an mbuf chain at each vif, instead of the static queue array.
This means that the MAXQSIZE is now variable per vif (although there is no
interface to change it other than a debugger); this is an area for more
experimentation.

  Bill

Submitted by:	Bill Fenner <fenner@parc.xerox.com>
1995-08-23 18:20:17 +00:00
Andras Olah 7eb7a449c4 Add a sanity check for the UDP length field in order to prevent
malformed UDP packets to panic the kernel.
Reviewed by:	davidg, wollman
Obtained from:	dab@berserkly.cray.com (David A. Borman) via end2end list
1995-08-17 22:09:14 +00:00
Gary Palmer 7d4aa0825d Try to make the `syn' blocking code act a bit more sensibly - don't
block `syn' packets that have `ack' set.
Reviewed by:
Submitted by:
Obtained from:
1995-07-31 13:58:35 +00:00
Andras Olah d3eede9d32 Remove a redundant `if' from tcp_reass().
Correct a typo in a comment (SEND_SYN -> NEEDSYN).

Reviewed by:	David Greenman
1995-07-31 10:24:22 +00:00
David Greenman cc0964fb2b Add connection drop capability for persist timeouts.
Reviewed by:	Andras Olah
Obtained from:	4.4BSD-lite2 via W. Richard Stevens
1995-07-29 18:48:44 +00:00
Garrett Wollman b124e4f284 Fix test for determining when RSVP is inactive in a router. (In this
case, multicast options are not passed to ip_mforward().)  The previous
version had a wrong test, thus causing RSVP mrouters to forward RSVP messages
in violation of the spec.
1995-07-26 18:05:16 +00:00
Garrett Wollman 59929500b4 Declare rsvp_input() to take the correct set of arguments and figure out
the receipt interface in the correct way.
1995-07-24 18:15:13 +00:00
Garrett Wollman b4489dc30a Completely turn off RSVP intercept when a socket being used for that purpose
is PRU_DETACHed.  This solves the problem that RSVP would not come up inm
raw mode if previously killed.
1995-07-24 16:33:51 +00:00
David Greenman f70b105004 Added $Id$. 1995-07-23 05:36:31 +00:00
Peter Wemm 42c03a52ba Change the compile-time option of DIRECTED_BROADCAST into a sysctl
variable underneath ip, "directed-broadcast".
Reviewed by:	David Greenman
Obtained from:	NetBSD, by Darren Reed.
1995-07-18 09:56:44 +00:00
Garrett Wollman 357b78a939 Return EDESTADDRREQ rather than EADDRNOTAVAIL if the user attempts to
half-configure a point-to-point interface.

Submitted by:	Jonathan M. Bresler <jmb@kryten.atinc.com>
1995-07-17 15:15:15 +00:00
Garrett Wollman 5b7ee6ed04 ICMP messages received from broken hosts which reply to multicast packets
were mistakenly delivered, rather than getting thrown out, which caused
substantial lossage.

Submitted by: Bill Fenner <fenner@parc.xerox.com>
1995-07-10 16:16:00 +00:00
Garrett Wollman dd22498271 tcp_input.c - keep track of how many times a route contained a cached rtt
or ssthresh that we were able to use

tcp_var.h - declare tcpstat entries for above; declare tcp_{send,recv}space

in_rmx.c - fill in the MTU and pipe sizes with the defaults TCP would have
	used anyway in the absence of values here
1995-07-10 15:39:16 +00:00
David Greenman c6e8c3576e Fixed panic that occurs on certain firewall rejected packets that was
caused by dtom() being used on an mbuf cluster. The fix involves passing
around the mbuf pointer.

Submitted by:	Bill Fenner
1995-07-09 14:29:46 +00:00
David Greenman 04c3f9f7ab Added some spaces for KNF. Moved some zero-initialized pointers into the
kernel's .bss.
1995-07-04 05:46:13 +00:00
David Greenman 09270166bb This is the end result of about a dozen passes through this code to fix
incorrect indents, a variety of poor coding practices such as comparing
pointers to constants ('0'), poor code structuring, etc, etc. This brings
the code up to the minimum standards for inclusion in FreeBSD.
1995-07-04 05:39:03 +00:00
David Greenman ed64321cec Define TRUE and FALSE. 1995-07-04 05:29:30 +00:00
David Greenman 7e9367a410 1) Removed bogus #include
2) Rewrote "bad_packet" code to be less buggy and more readable.
3) Removed a pile of goto's; the code is now somewhat less reminiscent
   of a certain Italian pasta.
4) Changed all boolean returns of "0" and "1" to FALSE/TRUE.
1995-07-04 03:35:20 +00:00
Joerg Wunsch 40a63d93aa Slightly modify my previous change to return EINVAL instead of
EFAULT.

Submitted by:	Peter Wemm
1995-07-02 16:45:07 +00:00
Joerg Wunsch d700586c3a I saw a very low-key commit message on the netbsd mailing lists and
figured out what the problem was..  Anyway, I rate it as "highly
serious".

Submitted by:	peter@haywire.DIALix.COM (Peter Wemm)
1995-07-01 19:09:40 +00:00
Garrett Wollman fc97827135 Keep track of the number of samples through the srtt filter so that we
know better when to cache values in the route, rather than relying on a
heuristic involving sequence numbers that broke when tcp_sendspace
was increased to 16k.
1995-06-29 18:11:24 +00:00
Gary Palmer 06cf932bcb Add a missing `goto' statement so that this compiles yet again. 1995-06-28 13:22:36 +00:00
David Greenman e9ce2e7d20 Added function prototypes for ip_rsvp_vif_init, ip_rsvp_vif_done, and
ip_rsvp_force_done.
1995-06-28 05:13:02 +00:00
Garrett Wollman 20dc68b204 Delete obsolete #if 0 block. 1995-06-27 20:36:34 +00:00
Guido van Rooij a0aa52a646 reject option in ip_fw used to panic the system. This fixes it.
-Guido
Reviewed by:
Submitted by:
Obtained from:
1995-06-27 17:26:27 +00:00
Garrett Wollman 524743b0fe From Bill Fenner:
> Also, I don't remember if I sent you this; it affects PIM assert processing.

Submitted by:	Bill Fenner <fenner@parc.xerox.com>
1995-06-26 16:15:49 +00:00
Garrett Wollman fba14c2e49 Corrected a bug that caused protocol-4 tunnels (used for multicast
forwarding between networks that aren't directly connected) not to work
by intercepting the wrong protocol number.  This should fix a bug reported
previously by someone I don't remember.
1995-06-26 16:11:51 +00:00
Garrett Wollman 43bed81d64 Fix an error in the comparison direction of the ap->updating case of
in_rtqkill().

Submitted by: W. Richard Stevens
1995-06-21 19:48:53 +00:00
Garrett Wollman 4650161123 Fix a resource allocation bug where multicast forwarding would leak mbufs
in certain cases when allocation of another mbuf has already failed.

Submitted by: Bill Fenner <fenner@parc.xerox.com>
1995-06-19 17:22:01 +00:00
Garrett Wollman 9167720192 Now that we've gone to all sorts of effort to allow TCP to cache some of
its connection parameters, we want to keep statistics on how often this
actually happens to see whether there is any work that needs to be done in
TCP itself.

Suggested by: John Wroclawski <jtw@lcs.mit.edu>
1995-06-19 16:45:33 +00:00
Garrett Wollman 1c5de19afb Kernel side of 3.5 multicast routing code, based on work by Bill Fenner
and other work done here.  The LKM support is probably broken, but it
still compiles and will be fixed later.
1995-06-13 17:51:16 +00:00
Rodney W. Grimes d3628763db Merge RELENG_2_0_5 into HEAD 1995-06-11 19:33:05 +00:00
Rodney W. Grimes 9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00