Commit Graph

45 Commits

Author SHA1 Message Date
itojun 7806b5d1f3 increase ipstat.ips_badaddr if the packet fails to pass address checks. 2001-03-02 04:26:10 +00:00
itojun 42bede79da allow IP_MULTICAST_IF and IP_ADD/DROP_MEMBERSHIP to specify interface
by interface index.  if the interface address specified is in 0.0.0.0/8
it will be considered as interface index in network byteorder.

getsockopt(IP_MULTICAST_IF) preserves old behavior if
setsockopt(IP_MULTICAST_IF) was done with interface address, and
returns interface index if setsockopt(IP_MULTICAST_IF) was done with
interface index (again using the form in 0.0.0.0/8).

Suggested by Dave Thaler, based on RIPv2 MIB spec (RFC1724 section 3.3).

http://mail-index.netbsd.org/tech-net/2001/01/13/0003.html
2001-01-13 07:19:33 +00:00
thorpej d839a91f5f Add an IP_MTUDISC flag to the flags that can be passed to
ip_output().  This flag, if set, causes ip_output() to set
DF in the IP header if the MTU in the route is not locked.

This allows a bunch of redundant code, which I was never
really all that happy about adding in the first place, to
be eliminated.

Inspired by a similar change made by provos@openbsd.org when
he integrated NetBSD's Path MTU Discovery code into OpenBSD.
2000-10-17 02:57:01 +00:00
tron a97bfde931 Add new sysctl variables "net.inet.ip.lowportmin" and
"net.inet.ip.lowportmax" which can be used to the set minimum
and maximum port number assigned to sockets using
IP_PORTRANGE_LOW.
2000-08-25 13:35:05 +00:00
simonb c85fbea607 Delete redundant decl of ip_gif_ttl - it's in <netinet/in_gif.h>.
Delete redundant decl of ip_mforward() - it's in <netinet/ip_mroute.h>.
2000-03-30 02:37:40 +00:00
thorpej 046d593425 Add the `packed' attribute to structures which describe wire protocol data. 1999-11-20 00:37:58 +00:00
bouyer f86517a031 Update protocoles and interfaces stats counters to 64bit.
RTM_IFINFO is now 0xf, 0xe is RTM_OIFINFO which returns the old (if_msghdr14)
struct with 32bit counters (binary compat, conditioned on COMPAT_14).
Same for sysctl: node 3 is renamed NET_RT_OIFLIST, NET_RT_IFLIST is now node 4.
Change rt_msg1() to add an mbuf to the mbuf chain instead of just panic()
when the message is larger than MHLEN.
1999-11-19 10:41:41 +00:00
itojun dcc13cdd33 sync with KAME/NetBSD 1.4, SNAP kit 19990705.
key changes are:
- icmp6 redirect fix (dst check)
- revised ip6 multicast check for loopback i/f
- several RCS ID cleanups
1999-07-06 12:23:19 +00:00
itojun 118d2b1d4f IPv6 kernel code, based on KAME/NetBSD 1.4, SNAP kit 19990628.
(Sorry for a big commit, I can't separate this into several pieces...)
Pls check sys/netinet6/TODO and sys/netinet6/IMPLEMENTATION for details.

- sys/kern: do not assume single mbuf, accept chained mbuf on passing
  data from userland to kernel (or other way round).
- "midway" ATM card: ATM PVC pseudo device support, like those done in ALTQ
  package (ftp://ftp.csl.sony.co.jp/pub/kjc/).
- sys/netinet/tcp*: IPv4/v6 dual stack tcp support.
- sys/netinet/{ip6,icmp6}.h, sys/net/pfkeyv2.h: IETF document assumes those
  file to be there so we patch it up.
- sys/netinet: IPsec additions are here and there.
- sys/netinet6/*: most of IPv6 code sits here.
- sys/netkey: IPsec key management code
- dev/pci/pcidevs: regen

In my understanding no code here is subject to export control so it
should be safe.
1999-07-01 08:12:45 +00:00
thorpej 14f5ac9081 Use the pool allocator for ipflow entries. 1998-10-08 01:41:45 +00:00
thorpej 974aa74abd Use the pool allocator for ipqent structures. 1998-10-08 01:19:25 +00:00
thorpej edc01ec330 In addition to the IP flow hash table, put the flows on a list. The table
is used for fast lookup, the list for traversal of all flows.  Also, use
PRT timers.
1998-06-02 15:48:03 +00:00
thorpej c5fc2e9acd Back out previous. This problem was already fixed in a different way. 1998-05-11 23:13:40 +00:00
matt 53b04a8d3c Let usr.sbin/tcpdump build again. 1998-05-11 23:09:35 +00:00
matt 36eac04cc0 Default IP flow to being enabled. Add a sysctl to control the maximum
number of flows (net.inet.ip.maxflows).  If set to 0, will disable fast
path forwarding.
1998-05-04 19:24:53 +00:00
thorpej 7e05be912b Need <net/route.h> 1998-04-30 17:47:26 +00:00
matt d4d709f7d0 Add support for "fast" forwarding. Add hooks in if_ethersubr.c and
if_fddisubr.c to fastpath IP forwarding.  If ip_forward successfully
forwards a packet, it will create a cache (ipflow) entry.  ether_input
and fddi_input will first call ipflow_fastforward with the received
packet and if the packet passes enough tests, it will be forwarded (the
ttl is decremented and the cksum is adjusted incrementally).
1998-04-29 21:37:52 +00:00
matt 334f006538 New TCP reassembly code. The new code reduces the memory needed by
out-of-order packets and builds the infrastructure needed for sending
SACK blocks (to be added shortly).
1998-04-29 20:43:29 +00:00
kml 1579dcec47 Add support for deletion of routes added by path MTU discovery;
uses new generic route timeout code.  Add sysctl for timeout period.
1998-04-29 03:44:11 +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
perry f73530ba55 add/cleanup multiple inclusion protection. 1998-02-10 01:26:19 +00:00
thorpej e5e283e02d Finishing merging 4.4BSD-Lite2 netinet. At this point, the only changes
left were SCCS IDs and Copyright dates.
1998-01-05 10:31:44 +00:00
lukem 1f8f74b669 enhance ephemeral port allocation code:
* support sysctl net.inet.ip.anonportmin (lowest ephemeral port)
  and net.inet.ip.anonportmax (highest ephemeral port).
  these can't be set to >65535, < IPPORT_RESERVED (unless IPNOPRIVPORTS
  is defined), and anonportmin has to be < anonportmax.
* use a cleaner way of only cycling through the available set once;
  this will be useful for when a random allocation scheme is used
* define IPPORT_ANON{MIN,MAX} instead of IPPORT_USER{LOW,HIGH}
1998-01-05 09:52:02 +00:00
kml 6b86b260cb change sysctl net.inet.icmp.mtudisc to net.inet.ip.mtudisc 1997-10-18 21:18:28 +00:00
thorpej b174d20bc1 Define IP_RETURNMTU. (Matt missed this part of his diff, I guess :-) 1997-10-14 08:38:01 +00:00
thorpej a0e791807e Eliminate use of dtom() from the network code, allowing more flexible
use of mbuf external storage and increasing performance (by eliminating
an m_pullup() for clusters in the IP reassembly code).

Changes from Koji Imada <koji@math.human.nagoya-u.ac.jp>, in PR #3628
and #3480, with ever-so-slight integration changes by me.
1997-06-24 02:25:59 +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
thorpej 65c188b3c7 Make length and offset fields unsigned. From Kevin M. Lahey <kml@nas.nasa.gov>
Add a counter to IP stats, to count packets which are discarded on the
grounds that they are too large.
1996-10-25 06:24:16 +00:00
mycroft 49d52c9b1c Pass a proc pointer down to the usrreq and pcbbind functions for PRU_ATTACH, PRU_BIND and
PRU_CONTROL.  The usrreq interface really needs to be split up, but this will have to wait.
Remove SS_PRIV completely.
1996-05-22 13:54:55 +00:00
christos 14d9cd33af netinet prototypes 1996-02-13 23:40:59 +00:00
cgd dfad729a16 make netinet work on systems where pointers and longs are 64 bits
(like the alpha).  Biggest problem: IP headers were overlayed with
structure which included pointers, and which therefore didn't overlay
properly on 64-bit machines.  Solution: instead of threading pointers
through IP header overlays, add a "queue element" structure to do
the threading, and point it at the ip headers.
1995-11-21 01:07:34 +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
cgd 2c1e3c655f drop (and record) malformed IP fragments. Fixes pr 1030 (differently). 1995-05-14 08:23:00 +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
jtc 7c04233887 KERNEL -> _KERNEL 1995-03-26 20:23:52 +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
mycroft 627b841797 Change the counters to be all the same type -- u_long. 1994-01-10 23:27:39 +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
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 45a57e79ea more rcsid additions and file header cleanups 1993-05-20 03:49:51 +00:00
mycroft 235bd1db44 Add consistent multiple-inclusion protection. 1993-04-19 03:45:34 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00