Commit Graph

852 Commits

Author SHA1 Message Date
itojun
5a30bafe14 Remove a bogus rtfree(); OpenBSD PR 1706. 2001-03-08 00:17:05 +00:00
itojun
7806b5d1f3 increase ipstat.ips_badaddr if the packet fails to pass address checks. 2001-03-02 04:26:10 +00:00
itojun
89b4c3edc6 reject packets with 127/8 on IPv4 src/dst, they must not appear on wire
(RFC1122).  torture-tests will be welcomed.
XXX do we want to check source routing headers as well?
2001-03-02 02:05:36 +00:00
itojun
2d6047cff9 make sure to enforce inbound ipsec policy checking, for any protocols on top
of ip (check it when final header is visited).  sync with kame.
XXX kame team will need to re-check policy engine code
2001-03-01 16:31:37 +00:00
itojun
5e57143c4a remove obsolete #if 0'ed section
(IPsec and DF bit interaction - the code was incorrect anyways)
2001-02-27 10:32:03 +00:00
itojun
233e3963ed make sure to validate packet against ipsec policy. 2001-02-26 07:20:44 +00:00
itojun
c9928e0ab1 need PR_ADDR|PR_ATOMIC for IPPROTO_EON. fix typo. from chopps, sync with kame 2001-02-21 00:11:53 +00:00
itojun
da8a3f0179 add AF_ISO case to output. from chopps. 2001-02-20 10:41:47 +00:00
itojun
176db3e930 ISO over IPv4/v6 by EON encapsulation. from chopps, sync with kame. 2001-02-20 08:49:15 +00:00
itojun
bc5a6e2482 pull latest kame pcbnotify code. synchronizes ICMPv6 path mtu discovery
behavior with other protocols (i.e. validation, use of hiwat/lowat).
2001-02-11 06:49:49 +00:00
itojun
52e23efa5f make sure we call tcp_output() only if we have template. 2001-02-11 06:39:35 +00:00
itojun
22b473e0f6 during ip6/icmp6 inbound packet processing, do not call log() nor printf() in
normal operation (/var can get filled up by flodding bogus packets).
sysctl net.inet6.icmp6.nd6_debug will turn on diagnostic messages.
(#define ND6_DEBUG will turn it on by default)

improve stats in ND6 code.

lots of synchronziation with kame (including comments and cometic ones).
2001-02-07 08:59:47 +00:00
chs
c92d60cfce expose the definitions of MIN() and MAX() in sys/param.h to the kernel
and use those in favor of a dozen copies scattered around the source tree.
2001-02-05 11:16:31 +00:00
chs
09cb38f22b expose the definitions of MIN() and MAX() in sys/param.h to the kernel
and use those in favor of a dozen copies scattered around the source tree.
2001-02-05 10:42:40 +00:00
is
29d5f56206 Make diagnostic actually useful - needed to debug other ARP PRs.
Suggested by Geoff C. Wing in PR 10815.
2001-01-26 11:40:32 +00:00
itojun
617b3fab7e - record IPsec packet history into m_aux structure.
- let ipfilter look at wire-format packet only (not the decapsulated ones),
  so that VPN setting can work with NAT/ipfilter settings.
sync with kame.

TODO: use header history for stricter inbound validation
2001-01-24 09:04:15 +00:00
itojun
696bcad865 put attribute(packed) for ip6 option headers. they will appear at
strange alignment positions.  sync with kame
2001-01-23 07:21:07 +00:00
itojun
5a4703fbfe revert revision 1.15 (on ingress, DF bit copied from inner to outer).
since we do not have feedback mechanism from path MTU to tunnel MTU
(not sure if we should), and inner packet source will not get informed of
outer PMTUD (we shouldn't do this), 1.15 behavior can lead us to
blackhole behavior.

configurable behavior (as suggested in RFC2401 6.1) would be nice to have,
however, reusing net.inet.ipsec.dfbit would be hairy.
2001-01-22 07:57:34 +00:00
itojun
a836499e32 make it possible to turn off ingress filter on gif/stf tunnel egress,
by using IFF_LINK2.  (part of) PR 11163 from Ken Raeburn.
2001-01-22 07:51:01 +00:00
itojun
93deb6a97f fix RR result bit in little endian systems. sync with kame 2001-01-22 02:28:02 +00:00
itojun
69622e75ab sync with latest kame.
- make icmp6.h spec conformant to 2292bis-02, regarding to router reumbering
  flag bit.
- latest rtadvd.
2001-01-21 15:39:32 +00:00
kleink
4c96c6b51f Add IPPROTO_VRRP. 2001-01-19 09:01:48 +00:00
jdolecek
34c8ae80da constify 2001-01-18 20:28:15 +00:00
itojun
df9784d749 pull post-4.4BSD change to sys/net/route.c from BSD/OS 4.2 (UCB copyrighted).
have sys/net/route.c:rtrequest1(), which takes rt_addrinfo * as the argument.
pass rt_addrinfo all the way down to rtrequest, and ifa->ifa_rtrequest.
3rd arg of ifa->ifa_rtrequest is now rt_addrinfo * instead of sockaddr *
(almost noone is using it anyways).

benefit: the follwoing command now works.  previously we need two route(8)
invocations, "add" then "change".
# route add -inet6 default ::1 -ifp gif0

remove unsafe typecast in rtrequest(), from rtentry * to sockaddr *.  it was
introduced by 4.3BSD-reno and never corrected.

XXX is eon_rtrequest() change correct regarding to 3rd arg?
eon_rtrequest() and rtrequest() were incorrect since 4.3BSD-reno,
so i do not have correct answer in the source code.
someone with more clue about netiso-over-ip, please help.
2001-01-17 04:05:41 +00:00
thorpej
fc5dafc79b Fix a rather annoying problem where the sockaddr_dl which holds
the link level name for the interface (ifp->if_sadl) is allocated
before ifp->if_addrlen is initialized, which could lead to allocating
too little space for the link level address.

Do this by splitting allocation of the link level name out of
if_attach() and into if_alloc_sadl(), which is normally called
by functions like ether_ifattach().  Network interfaces which
don't have a link-specific attach routine must call if_alloc_sadl()
themselves (example: gif).

Link level names are freed by if_free_sadl(), which can be called
from e.g. ether_ifdetach().  Drivers never need call if_free_sadl()
themselves as if_detach() will do it if it is not already done.

While here, add the ability to pass an AF_LINK address to
SIOCSIFADDR in ether_ioctl() (this is what caused me to notice
the problem that the above fixes).
2001-01-17 00:30:49 +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
itojun
4a14fb4fd8 on getsockopt(IP_IPSEC_POLICY), make sure to initialize len 2001-01-13 06:01:18 +00:00
thorpej
054b845cec Fix a small typo that would cause IP Filter to not hook in to
pfil_hooks properly on kernels that included IPv6 support.
2000-12-28 21:42:49 +00:00
thorpej
ad5b855ef0 Back out the sledgehammer damage applied by wiz while I was out for
the holiday.
2000-12-28 21:40:59 +00:00
wiz
32e20d8993 Back out previous change. It causes NAT to fail, and was CLEARLY
NOT TESTED before it was committed.
2000-12-25 02:00:46 +00:00
thorpej
d0357bdb4f Slight adjustment to how pfil_head's are registered. Instead of a
"key" and a "dlt", use a "type" (PFIL_TYPE_{AF,IFNET} for now) and
a val/ptr appropriate for that type.  This allows for more future
flexibility with the pfil_hook mechanism.
2000-12-22 20:01:17 +00:00
itojun
b2aef8afe2 fix call to in6_pcbnotify. s/EMSGSIZE/PRC_MSGSIZE/. 2000-12-21 00:45:17 +00:00
thorpej
ca9af6e52e Pull in BPF includes. 2000-12-18 20:58:13 +00:00
thorpej
ed7695a765 Fill in if_dlt. 2000-12-18 19:44:33 +00:00
thorpej
d9a9544a2f Add ALTQ glue. XXX Temporary until ALTQ is changed to use a pfil hook. 2000-12-14 17:36:44 +00:00
thorpej
c5293456da Adapt to bpfattach() changes, and further centralize the bpfattach()
and bpfdetach() calls into link-type subroutines where possible.
2000-12-12 18:00:22 +00:00
itojun
25296369e5 make sure t_family has the correct protocol family, after connect(2)
and/or bind(2).  sync with kame
2000-12-11 00:07:48 +00:00
itojun
9302f377a6 remove NRL code leftover. sync with kame 2000-12-10 23:39:36 +00:00
itojun
5eae50d991 update icmp6 too big validation. the change is necessary since pmtud is
mandatory for IPv6 (so we can't just validate by using connected pcb - we need
to allow traffic from unconnected pcb to do pmtud).
- if the traffic is validated by xx_ctlinput, allow up to "hiwat" pmtud
  route entries.
- if the traffic was not validated by xx_ctlinput, allow up to "lowat" pmtud
  route entries (there's upper limit, so bad guys cannot blow up our routing
  table).
sync with kame

XXX need to think again about default hiwat/lowat value.
XXX victim selection to help starvation case
2000-12-09 01:29:45 +00:00
itojun
7fee705236 more on previous (udp4 multicast fix) 2000-12-04 11:24:20 +00:00
itojun
c2ca545d60 fix multicast inbound packet processing.
NetBSD PR 11629 From: salvet@ics.muni.cz
2000-12-04 11:23:04 +00:00
itojun
f9ed4a5d70 IFA_STATS stability (not complete); don't touch ip if it is NULL. 2000-11-24 03:43:20 +00:00
thorpej
e37508421d Due to a quirk (err, bug?) in IP Filter (mbuf freed without setting *mp
to NULL), the NULL check is insufficient.  Also make sure fr_check()
returned 0.
2000-11-12 19:50:47 +00:00
thorpej
cbf6f69cb2 Oops, the mbuf may have been freed -- do a NULL check in the wrapper. 2000-11-12 19:29:31 +00:00
thorpej
8517807044 Actually, our local ip_off variable isn't needed. 2000-11-11 00:55:51 +00:00
thorpej
65fd25ea82 Restructure the PFIL_HOOKS mechanism a bit:
- All packets are passed to PFIL_HOOKS as they come off the wire, i.e.
  fields in protocol headers in network order, etc.
- Allow for multiple hooks to be registered, using a "key" and a "dlt".
  The "dlt" is a BPF data link type, indicating what type of header is
  present.
- INET and INET6 register with key == AF_INET or AF_INET6, and
  dlt == DLT_RAW.
- PFIL_HOOKS now take an argument for the filter hook, and mbuf **,
  an ifnet *, and a direction (PFIL_IN or PFIL_OUT), thus making them
  less IP (really, IP Filter) centric.

Maintain compatibility with IP Filter by adding wrapper functions for
IP Filter.
2000-11-11 00:52:36 +00:00
ad
642267bcc7 Update for hashinit() change. 2000-11-08 14:28:12 +00:00
itojun
ef8a34f5c3 fix IPv4 TTL selection with AF_INET6 API. sync with kame. From: jdc 2000-11-06 00:50:12 +00:00
onoe
e83458422f First Prototype implementation of network interface part for IEEE1394 (if_fw).
Current status:
	Only OHCI chip is supported (fwohci).
	ping (IPv4) works with Sony's implementation (SmartConnect) on Win98.
	sometimes works but not stable.
Not implemented yet:
	IRM (Isochronous Resource Manager) functionality.
	Link layer fragmentation.
	Topology map.
More to do:
	clean ups
	MCAP
	charactor device part
	dhcp

There is no entry in GENERIC config file yet.
Follow sys/dev/ieee1394/IMPLEMENTATION to enable if_fw.
2000-11-05 17:17:12 +00:00
itojun
be2983be9d cleanup tcp_drop 2000-10-29 06:33:59 +00:00