Commit Graph

53 Commits

Author SHA1 Message Date
ws ede30e2813 Fix a buglet when looking up an interface for multicast:
Zero out the routing structure before calling the route lookup code
in order to correctly match addresses.
1998-10-26 17:31:01 +00:00
matt 3ad026ac87 vax -> __vax__ (and mips to __mips__ in ultrix_misc.c) 1998-10-20 01:46:27 +00:00
tls c4730d65cf Switch order of TNF and UCB copyrights so UCB copyright is first; this seems more appropriate since UCB wrote the original code, after all. 1998-09-30 21:52:24 +00:00
mrg 4a75265273 defopt PFIL_HOOKS. 1998-08-09 08:58:18 +00:00
sommerfe 534520d815 Fix PR5508: ipfil cut-through forwarding causes panic 1998-07-17 00:28:00 +00:00
matt 5b43c678b7 Only transmit fragments if the send queue of interface can actually hold
all of the fragments.  Use the mtu of route in preference of the MTU of the
interface when doing fragmentation decisions.  (ie. Fragment to the path
mtu if it is available).
1998-04-28 15:26:00 +00:00
kml 96954c2a53 Ensure that we take the IP option length into account when we calculate
the effective maximum send size for TCP.  ip_optlen() and tcp_optlen()
should probably be inlined for efficiency.
1998-03-24 03:10:02 +00:00
mrg 45159fa631 convert pfil(9) in and out lists from <sys/queue.h> LISTs to TAILQs, and
change pfil_add_hook to put output filters at the tail of the queue,
while continuing to place input filters at the head of the queue.  update
the two users of these functions, and document these changes.

fixes PR#4593.
1998-03-19 15:45:30 +00:00
tls 91de585d5f Add correct copyright notice for IP address hash change. This code is donated to TNF by the original copyright holder, Panix. 1998-02-15 18:24:23 +00:00
tls c9934a9084 Change list of interface IP addresses to a hash. Improves performance on hosts with a large number of IP addresses significantly. 1998-02-13 18:21:38 +00:00
kleink a8bd1c7e84 Fix variable declarations: register -> register int. 1998-02-13 10:23:49 +00:00
scottr 54ea074777 Use option header file for MROUTING 1998-01-12 03:02:48 +00:00
lukem c80b4400e5 add the following, derived from FreeBSD:
* IP_PORTRANGE socket option, which controls how the ephemeral ports
  are allocated. it takes the following settings:
	IP_PORTRANGE_DEFAULT	use anonportmin (49152) -> anonportmax (65535)
	IP_PORTRANGE_HIGH	as IP_PORTRANGE_DEFAULT (retained for FreeBSD
				compat reasons, where these are separate)
	IP_PORTRANGE_LOW	use 600 -> 1023. only works if uid==0.
* in_pcb flag INP_ANONPORT. set if port was allocated ephmerally
1998-01-07 22:51:22 +00:00
matt 8c42ff649b Add support for returning maximum supported MTU when ip_output fails with
EMSGSIZE.
1997-10-14 00:52:39 +00:00
christos 0659cacda6 Move the mtod calls *after* we've made sure that the packet has passed the
filter successfully. Otherwise it can be NULL if the filter blocked it,
and we die. How did this ever work?
1997-04-15 00:41:52 +00:00
mrg 4c8bfe2630 pseudo-device ipfilter brings in PFIL_HOOKS. 1997-02-18 20:49:32 +00:00
thorpej 9df1988ac8 Implement the IP_RECVIF socket option: supply a datagram packet's incoming
interface using a sockaddr_dl in a control mbuf.

Implement SO_TIMESTAMP for IP datagrams.

Move packet information option processing into a generic function
so that they work with multicast UDP and raw IP as well as unicast UDP.

Contributed by Bill Fenner <fenner@parc.xerox.com>.
1997-01-11 05:21:07 +00:00
mrg 5e5291f97b always reassign ip after calling function. 1996-12-20 09:08:16 +00:00
mrg 15eaee8d6f in pfil_hooks: always reassign ip after calling hook. 1996-12-20 08:39:29 +00:00
veego b962d9a3eb Fix a panic from the pfil_hooks. 1996-10-22 11:27:05 +00:00
is 08899f4a1b Fix a mbuf leak in ip_output().
Scenario: If ip_insertoptions() prepends a new mbuf to the chain, the
bad: label's m_freem(m0) still would free only the original mbuf chain
if the transmission failed for, e.g., no route to host; resulting in
one lost mbuf per failed packet. (The original posting included a
demonstration program).

Original report of this bug was by jinmei@isl.rdc.toshiba.co.jp
(JINMEI Tatuya) on comp.bugs.4bsd.
1996-10-11 18:19:08 +00:00
mrg a5f00f16bc move the packet filter hooks in to a saner location. while i'm here, rename
PACKET_FILTER to PFIL_HOOKS.
1996-09-14 14:40:20 +00:00
mycroft 62a6cce9ca Add in_nullhost() and in_hosteq() macros, to hide some protocol
details.  Also, fix a bug in TCP wrt SYN+URG packets.
1996-09-09 14:51:07 +00:00
mrg ae47956db0 add packet filter interface code. see pfil(9) for more details. you
need the PACKET_FILTER option to enable this code.  currently, ipfilter
version 3.1.1-beta has been converted to use this new interface.
1996-09-06 05:07:43 +00:00
mrg 32cdb91fa3 two more local addr changes, all done differently now (idea from charles) 1996-02-26 23:16:42 +00:00
christos 14d9cd33af netinet prototypes 1996-02-13 23:40:59 +00:00
cgd 5b435dbf05 null mbuf pointer could cause system crash; avoid it. From
Torsten Duwe <duwe@immd4.informatik.uni-erlangen.de>.
1995-07-01 03:44:55 +00:00
mycroft 6897f39ae9 Various cleanup, including:
* Convert several data structures to use queue.h.
* Split in_pcbnotify() into two parts; one for notifying a specific PCB, and
one for notifying all PCBs for a particular foreign address.
1995-06-12 00:46:47 +00:00
mycroft 41703012d6 Don't cast things unnecessarily. 1995-06-04 05:58:20 +00:00
mycroft 0a99592372 Clean up many more casts. 1995-06-04 05:06:49 +00:00
mycroft eb216fd6c2 Avoid byte-swapping IP addresses at run time. 1995-06-01 21:35:34 +00:00
cgd b4cd363b69 simplify ip_output() out-of-memory condition slightly, and style nits. 1995-05-15 01:24:53 +00:00
cgd 80929f8527 be a bit more careful and explicit with types. (basically a large no-op.) 1995-04-13 06:35:38 +00:00
mycroft 8b77f9cd5f Remove some explicit references to loif. 1995-04-11 04:30:47 +00:00
cgd cf92afd66e New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:29:24 +00:00
mycroft 07b4f2ab54 Update to 4.4-Lite networking code, with a few local changes. 1994-05-13 06:02:48 +00:00
hpeyerl d7038296be Multicast is no longer optional. 1994-02-02 05:58:50 +00:00
brezak e568c13be8 Fix arguments to ip_getmoptions. 1994-01-19 21:36:56 +00:00
brezak 17ea2355b4 Fix some prototype detected warnings/errors. 1994-01-18 03:26:53 +00:00
brezak 38253dddb8 Patch for ip-multicast bugs from mccanne@ee.lbl.gov (Steven McCanne) 1994-01-18 02:36:53 +00:00
mycroft b79490fcca Should compile now with or without `options MULTICAST'. 1994-01-10 20:14:14 +00:00
mycroft 222ebaf50e Prototype the rest. 1994-01-09 01:06:02 +00:00
mycroft 4fe12e6e88 Fix some inconsistent spacing; spaces at the end of lines, etc. 1994-01-08 21:21:28 +00:00
cgd 9834dab564 kill COMPAT_OLDSOCKOPT 1994-01-07 22:16:11 +00:00
ws 0a8a197a17 Apparently noone ever tested the COMPAT_OLDSOCKOPT flag... 1994-01-06 23:00:22 +00:00
mycroft 95b048b53a Canonicalize all #includes. 1993-12-18 00:40:47 +00:00
cgd 39bb0b1bc8 oops; fix that last... 1993-12-06 07:14:45 +00:00
cgd 443babf5ac the ugliest compatibility hack i think i've ever seen...
define COMPAT_OLDSOCKOPT to get new kernels to work with the
old args to [sg]sockopt.  this is going to go away "soon".
note that this option only has effect if MULTICAST is not defined.
1993-12-06 06:46:28 +00:00
hpeyerl aa7f3b23a8 multicast support.
>From Chris Maeda, cmaeda@cs.washington.edu
These patches are derived from the IP Multicast patches for BSDI.
1993-12-06 04:50:19 +00:00
cgd ec3f94cfcd fix from david greenman, davidg@freefall.cdrom.com:
fixed bug where large amounts of unidirectional UDP traffic would fill
the interface output queue and further udp packets would be fragmented
and only partially sent - keeping the output queue full and jamming the
network, but not actually getting any real work done (because you can't
send just 'part' of a udp packet - if you fragment it, you must send
the whole thing). The fix involves adding a check to make sure that the
output queue has sufficient space for all of the fragments.
1993-11-05 23:06:26 +00:00