Commit Graph

439 Commits

Author SHA1 Message Date
matt 5571e920d6 senderr needs only be declared when PFIL_HOOKS is defined 2001-06-12 17:55:52 +00:00
itojun bdbfdf946d run pfil_hooks for IPv6 forwarding path (note: ip6_forward() does not
call ip6_output()).
2001-06-12 15:12:33 +00:00
itojun 8b646a5273 remove IPV6FIREWALL case, which is never used 2001-06-11 13:49:18 +00:00
wiz 40ac848024 Fix various misspellings of compatible/compatibility. 2001-06-11 01:50:48 +00:00
mrg 6a536c0364 fix a IPNOPRIVPORTS unused variable botch. noted by proff. 2001-06-06 06:07:06 +00:00
thorpej ad9d3794b0 Implement support for IP/TCP/UDP checksum offloading provided by
network interfaces.  This works by pre-computing the pseudo-header
checksum and caching it, delaying the actual checksum to ip_output()
if the hardware cannot perform the sum for us.  In-bound checksums
can either be fully-checked by hardware, or summed up for final
verification by software.  This method was modeled after how this
is done in FreeBSD, although the code is significantly different in
most places.

We don't delay checksums for IPv6/TCP, but we do take advantage of the
cached pseudo-header checksum.

Note: hardware-assisted checksumming defaults to "off".  It is
enabled with ifconfig(8).  See the manual page for details.

Implement hardware-assisted checksumming on the DP83820 Gigabit Ethernet,
3c90xB/3c90xC 10/100 Ethernet, and Alteon Tigon/Tigon2 Gigabit Ethernet.
2001-06-02 16:17:09 +00:00
itojun 781f6920ab use default hoplimit when incoming interface is not given to icmp6_reflect.
sync with kame
2001-06-01 05:54:19 +00:00
mrg 67afbd6270 use _KERNEL_OPT 2001-05-30 11:57:16 +00:00
thorpej c973d6a0eb Skip the pseudo-header if nxt == 0. This is already documented
in in6_cksum(9) and is also the behavior of the i386 optimized
version.
2001-05-30 03:06:56 +00:00
itojun e91c2ce847 remove debug printfs, which can be too noisy. sync with kame. 2001-05-27 17:36:07 +00:00
itojun fc644273cd print more diag message on in6_addmulti() failures. 2001-05-24 08:17:22 +00:00
itojun a7596d1912 call icmp6_mtudisc_update(foo, 0) even if ICMPv6 messages are very short.
let icmp6 layer decide whether we take PMTUD routes or not.
2001-05-24 07:22:27 +00:00
itojun fc66251bda plug memory leak on invalid fragment packet. supress noisy log. from kame 2001-05-17 14:01:37 +00:00
itojun 498fdebcd7 drop multi destination mode (IFF_LINK0). 2001-05-14 13:35:20 +00:00
itojun f4d5905544 there's no need to #if NFAITH here. IN6P_FAITH can be set even on
NFAITH == 0 kernel, it is safer to always check the condition.
sync with kame.
2001-05-11 18:38:03 +00:00
itojun 63181d71c1 correct ecn consideration on tunnel encap/decap. sync with kame. 2001-05-10 01:37:42 +00:00
itojun 1bec764d78 correct faith prefix determination. use sys/netinet/if_faith.c:faithprefix()
to determine.  sync with kame.
(without this change, non-faith socket may mistakenly accept for-faith traffic)
2001-05-08 10:15:13 +00:00
itojun d1b6307b88 do not copy TTL field on ipsec tunnel mode encapsulation. sync with kame 2001-04-15 01:55:49 +00:00
thorpej bf2dcec4f5 Remove the use of splimp() from the NetBSD kernel. splnet()
and only splnet() is allowed for the protection of data structures
used by network devices.
2001-04-13 23:29:55 +00:00
itojun f4e4c674a7 disallow userland programs from specifying addresses with IPV6_PKTINFO
setsockopt, if:
- the address is not verified by DAD (= not ready)
- the address is an anycast address (= not permitted as source)
sync with kame
2001-04-11 04:57:53 +00:00
itojun 5ed8fd262b suppress RS/RA log messages (can be re-enabled by net.inet6.icmp6.nd6_debug),
as they may fill up /var.  sync with kame.
2001-04-04 06:28:41 +00:00
itojun 2abaa8eae5 make sure rcvif is sane on call to icmp6_reflect 2001-04-04 06:28:40 +00:00
itojun 92969654c0 enable FAKE_LOOPBACK_IF case by default.
now traffic on loopback interface will be presented to bpf as normal wire
format packet (without KAME scopeid in s6_addr16[1]).

fix KAME PR 250 (host mistakenly accepts packets to fe80::x%lo0).

sync with kame.
2001-03-30 11:08:56 +00:00
itojun dbcd4b8d03 fix constness of IN6_{IS,ARE}_xx with RFC2553. sync with kame. 2001-03-30 05:53:52 +00:00
itojun 2fb1887b31 re-initialize mopt in ip6_insert_jumboopt(). sync with kame
From: csapuntz@stanford.edu
2001-03-25 09:58:43 +00:00
itojun 0c8d8ae7a0 couple of missing splx. sync with kame.
From: csapuntz@play-doh.stanford.edu (Constantine Sapuntzakis)
2001-03-25 09:06:03 +00:00
itojun 3e898c9239 in nd6_cache_lladdr(), set nd6_gctimer to ln_expire just after the state
transition to STALE.  fixes tahi test breakage.  sync with kame.
2001-03-21 21:56:29 +00:00
thorpej 20fe4e2d96 Add a protosw flag, PR_ABRTACPTDIS (Abort on Accept of Disconnected
Socket), and add it to the protocols that use that behavior (all
PR_LISTEN protocols except for PF_LOCAL stream sockets).
2001-03-21 19:22:27 +00:00
itojun 4ce63adb1e do not inject packets to ipfilter, if the packet went through IPsec tunnel.
http://www.netbsd.org/Documentation/network/ipsec/#ipf-interaction
2001-03-21 19:12:56 +00:00
itojun 93b8b31feb set rmx_mtu to L2 interface mtu, instead of 0, on mtudisc timeout.
ip6_output() change is for safety.  sync with kame
2001-03-21 07:52:13 +00:00
itojun e4ecd03f2a drop packets with link-local addresses,
if (internally-used) interface ID portion is already filled.  sync with kame
2001-03-16 12:22:34 +00:00
itojun 27a0af5865 nd6_storelladdr() was not consistent about m_freem() policy.
do not touch RTF_STATIC entries (static ND entries) on ND cache update.
couple of costmetic sync.  sync with kame
2001-03-08 10:49:32 +00:00
itojun 7695280d34 more missing splx. from kame 2001-03-08 10:48:40 +00:00
itojun 912f42ecda remove bogus rtfree. sync with kame. inspired by openbsd PR 1706. 2001-03-08 00:19:03 +00:00
itojun 4e45315377 missing splx. from aaron@openbsd. sync with kame 2001-03-07 22:50:14 +00:00
itojun c9e08725bc avoid possible alignment issue. sync with kame 2001-03-04 16:49:17 +00:00
itojun dc3424f555 pass key to rijndael logic as binary, not hexadecimal string.
sync with kame
2001-03-02 15:42:39 +00:00
itojun f03176a0a8 have comment that refers to kame COVERAGE document. sync with kame 2001-03-02 04:55:40 +00:00
itojun 8c8c2f71a4 the date string in KAME version is getting very meaningless, remove. 2001-03-02 04:52:54 +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 233e3963ed make sure to validate packet against ipsec policy. 2001-02-26 07:20:44 +00:00
cgd 023e9f0649 C requires that labels be followed by statements. 2001-02-24 00:01:22 +00:00
itojun f2a66201fc garbage-collect stale ND entries (default: 1 day).
RFC 2461 5.3.  sync with kame.
2001-02-23 08:02:41 +00:00
itojun e1196a8f6e remove unnecessary state, ND6_LLINFO_WAITDELETE, from neighbor cache
state machine.
no need for RTF_REJECT on neighbor cache entires, they are leftover from
ARP code.
sync with kame.
2001-02-23 06:41:50 +00:00
itojun 2df943e652 correct handling of upper limitation to # of reass queue. 2001-02-22 05:04:42 +00:00
itojun 49889b3afd be more more picky about option length parsing. sync with kame 2001-02-22 01:40:25 +00:00
itojun e1e316562b make validation code more strict for ND6/dest6 variable length headers.
check duplicated nd6_ifinfo table initialization in a better way.
sync with kame
2001-02-21 17:23:09 +00:00
itojun 96413230d1 style, to make kame sync easier 2001-02-21 16:28:43 +00:00
itojun 52f2cece9f tighten AH IPv4 option chasing more. drop too short (< 2) option.
sync with kame.
2001-02-21 01:27:58 +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 5bc3f3ff96 correct IPv4 option handling. 2001-02-19 04:24:27 +00:00
itojun 26a76076be correct IPv4 option header chasing. the old code may overrun the buffer
if the option header is truncated.  sync with kame
2001-02-19 03:47:01 +00:00
itojun e6dbed9659 wording in comment.
is contradict -> "is contradictory", or "contradicts".
2001-02-16 15:13:40 +00:00
itojun f99a50f858 protect router list management by splsoftnet properly. sync with kame 2001-02-11 07:12:01 +00:00
itojun 1bc6ca28a1 make sure to clean ln_byhint on reachability confirmation. 2001-02-11 07:00:03 +00:00
itojun 1442c06fae wrap kernel-only #define (kame cross-bsd portability) into _KERNEL. 2001-02-11 06:50:59 +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 2390806e17 whitespace sync with kame 2001-02-11 05:25:04 +00:00
itojun 5318e0ee0f remove #ifdef __FreeBSD__. 2001-02-11 05:24:21 +00:00
itojun 37bb4bf58b set frag6_doing_reass properly (for frag6_drain). sync with kame. 2001-02-11 05:05:27 +00:00
itojun 7781d63a92 recover $NetBSD$ (removed by mistake) 2001-02-11 04:53:49 +00:00
itojun 9a9c998cc7 add missing IFAFREE() in error recovery case. 2001-02-11 04:29:30 +00:00
itojun e1f4f77960 to sync with kame better, (1) remove register declaration for variables,
(2) sync whitespaces, (3) update comments. (4) bring in some of portability
and logging enhancements.  no functional changes here.
2001-02-10 04:14:26 +00:00
itojun 4cd9449e34 initialize "mbz" member. kame 1.35 -> 1.36 2001-02-10 03:06:39 +00:00
itojun 7f548573d5 cosmetic changes to sync with kame. tabify and minor local variable renames 2001-02-10 02:19:57 +00:00
itojun 20e2452579 fix if_set for architectures with sizeof(long) != 4. IF_xxx behaved badly.
(no fear of overrun, since index was mistakenly computed to too small value)
2001-02-10 02:10:14 +00:00
itojun 6b9104e0f7 sync with kame better. cosmetic/stat changes only. 2001-02-08 18:43:17 +00:00
itojun ae819d9324 move udp6_output() to separate file. (sync better with kame) 2001-02-08 16:48:01 +00:00
itojun 109fcc5522 implement upper limit to icmp6 redirects (experimental, turned off)
negative value to {mtudisc,redirect}_{hi,lo}wat will turn off the limitation.
sync with kame.
2001-02-08 16:07:39 +00:00
itojun 179a7e0d7b send up dst_unreach_admin error to local node, if transport-mode
ipsec key is not found.  rather experimental.  kame 1.83 -> 1.84

nuke IPSEC_SRCSEL which does not do the right thing.
adjust state->ro if the tunnel endpoint is offlink.  KAME PR 233.
kame 1.84 -> 1.85
2001-02-08 15:04:26 +00:00
itojun 574214f10a amove in6_{embed,recover}scope prototypes to in6_var.h (kernel only).
add in6_clearscope.  sync with kame
2001-02-08 14:56:15 +00:00
itojun a1d89972c7 when chasing nd6_llinfo chain, make sure we do not touch dangling
pointer (due to RTM_DELETE during default router list management).
from kame
2001-02-08 12:57:54 +00:00
itojun c8e86cc06a remove bogus DIAGNOSTIC. sync with kame 2001-02-07 10:56:38 +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
itojun 172e802b90 bad semicolon after "if" conditional. sync with kame 2001-02-06 01:27:29 +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
itojun d17dfd2fc0 avoid panic when a packet with nonexistent link-local address is issued.
kame 1.151 -> 1.152.
2001-02-02 15:54:56 +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 8b3234d2f2 minimize diff with the latest kame tree. 2001-01-23 05:21:23 +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 60240f3ab9 workaround to avoid EMSGSIZE when ND6 table for the outgoing interface
is not initialized (should result in "interface down").
2001-01-18 06:50:12 +00:00
itojun 43950f6d05 on interface removal (ifconfig destroy) do not remove default route by mistake 2001-01-18 06:49:11 +00:00
itojun 4dbe2a5a97 wrap noisy ND6 debugging messages with ND6_DEBUG. sync with kame 2001-01-17 11:26:52 +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
itojun 039777e3c8 s/ND6DEBUG/ND6_DEBUG/ to meet other places 2001-01-16 06:16:37 +00:00
itojun 9f119cbf91 wrap icmp6 checksum error printf() into #ifdef ND6DEBUG.
sync with kame,  NetBSD PR 11911.
2001-01-08 06:12:46 +00:00
itojun 6562709f3a typo fix. PR 11889 2001-01-04 11:48:44 +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
itojun 8b9fb822b0 do not touch ra_addr if it is NULL. from IIJ SEIL team 2000-12-28 21:23:00 +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 b05acc70f8 make sure we notify of routing changes, even if we have net route pointed
to by inpcb.
2000-12-21 00:46:20 +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
itojun 1101f217b5 no need to rtalloc1() twice in pmtud. from kame 2000-12-11 19:28:47 +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 fe5bd7125e make sure we don't touch uninitialized pointer. from: fvdl 2000-12-04 12:11:49 +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
itojun a21e536042 improve spec conformance of node information query (07).
sync with kame.
2000-11-11 00:46:36 +00:00