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Commit Graph

2899 Commits

Author SHA1 Message Date
Randall Stewart
97c76f10a0 - Update bindx address checking to properly screen out address
per the socket api, adding port validation. We allow port 0
  or the already bound port number and no others.

Approved by:	re@freebsd.org (Ken Smith)
2007-06-25 19:05:26 +00:00
Randall Stewart
a964e8de4c - Fix type casts in calling sctp_m_getptr, it expects a int not
an unsigned (returned by sizeof) also add cast to  comparison check
  for size bounds.
Approved by:	re(bmah@freebsd.org)
2007-06-22 14:40:09 +00:00
Randall Stewart
671d309c7c - Fix stream reset so it limits the number of streams that can be listed
- Fix fwd-tsn to use proper accessor so it does not overrun mbufs
- Fix stream reset error reporting to actually work (it has always been
  broken if the peer rejects a stream reset)
- Some 64 bit friendly changes

Approved by:	re(bmah@freebsd.org)
2007-06-22 13:50:56 +00:00
Randall Stewart
ea1fbec59a - Two more static analisys bugs found by cisco's tool on a subsequent
run.
2007-06-18 22:36:52 +00:00
Randall Stewart
eacc51c5b6 - Fixes cstatic issues found by cisco sa tool (missing frees and such
on error legs)
- align sctp_sockstore to 64 bit boundary ..
2007-06-18 21:59:15 +00:00
Maxim Konovalov
d069a5d478 o Make ipfw set more robust -- now it is possible:
- to show a specific set: ipfw set 3 show
    - to delete rules from the set: ipfw set 9 delete 100 200 300
    - to flush the set: ipfw set 4 flush
    - to reset rules counters in the set: ipfw set 1 zero

PR:		kern/113388
Submitted by:	Andrey V. Elsukov
Approved by:	re (kensmith)
MFC after:	6 weeks
2007-06-18 17:52:37 +00:00
Randall Stewart
d95ddf0251 Add additional logging level mask for packet_logging too. 2007-06-18 13:57:37 +00:00
Randall Stewart
19d8ca2eaf - The packet log needs to copy all of the buffer not to the end. 2007-06-17 23:43:37 +00:00
Randall Stewart
75298de2a0 Back out last change to inpcb_free. Turns out we need
to hold off freeing if there is data pending ... someone
might do send/close. Which means we want the data to
go and then close it after startup. Added comments to
the code as well to note that this is done for a reason.
2007-06-17 19:27:46 +00:00
Matt Jacob
cce418d3bf Make gcc4.2 happy and zero save_ip for the unlikely (blackhole != 0)
codepath.
2007-06-17 04:07:11 +00:00
Randall Stewart
e42a0f5e72 - For sctp_input/sctp6_input add announcment when a packet arrives (debug)
- re-factor the packet drop in sctp_output a bit more, we don't need the
   trim after all, but the size calc is now corrected.
 - When a assoc is in the COOKIE-ECHO/COOKIE-WAIT state and the user
   closes, it should not matter if data is queued, the assoc should be
   purged.
 - In error leg a missing free_chunk when iph comes in NULL (should not
   happen but just in case).
2007-06-17 01:36:02 +00:00
Matt Jacob
27d65ef267 Replace incorrect local OFFSET_OF macro with the correct and generic
offsetof macro.
2007-06-17 00:33:34 +00:00
Matt Jacob
fbdd20a1ae Simplification to quiet a gcc4.2 warning. Just by setting match.s_addr
to nonzero you fulfill the same function as the variable 'cmp'. so you
might as well zero match and test against it later.

Reviewed by:	timeout on review request
2007-06-17 00:31:24 +00:00
Randall Stewart
ca2cc3feac - Better handle sending large pkt-drops. We were not triming
the data with m_adj if a large pkt arrived with a bad csum
  some systems can't handle you not triming the tail (think panda :-D)
2007-06-16 14:03:15 +00:00
Randall Stewart
48dabb921d - Raise max range of sctp_logging sysctl so panda does not disallow
us to turn on logging levels.
2007-06-16 03:28:18 +00:00
Randall Stewart
72fb6fdb41 - Matthew's changes to get inlines out, plus a few of my own
to deal with the VRF inline function -> becomes a macro now.
Submitted by:	Matthew Jacobs
2007-06-16 00:33:47 +00:00
Matt Jacob
3c010a416c Garbage collect some debug code that not only no longer could
work but in fact probably causes a random pointer dereferences.
Garbage collect the tp variable too.
2007-06-15 22:54:11 +00:00
Randall Stewart
b9e7085a57 Name change SCTP_KTR_SUBSYS -> KTR_SCTP 2007-06-15 20:54:12 +00:00
Randall Stewart
0a374fd92a Remove extraneous extern (its gotten from sctp_sysctl.h) 2007-06-15 20:23:41 +00:00
Randall Stewart
cba882dfcc When removing a stream from the output-stream-wheel, if its the
first stream we saw we must update the starting point in the
wheel, else we may loop in an endless loop.
2007-06-15 19:49:13 +00:00
Randall Stewart
e1461651a4 - Update the comment lines in sctp_input.c
- We need to init the INP_LOCK since otherwise for
  non-SMP kernels you crash when you set the TOS.
2007-06-15 19:28:58 +00:00
Bruce M Simpson
f64a3b042a Stub out imported IGMPv3 definitions which clash with those of
the XORP router; the IGMPv3 definitions will be updated at a later
point in time when IGMPv3/MLDv2 support is fully merged.
2007-06-15 18:59:10 +00:00
Randall Stewart
458303da65 - Issue one, new stack reduction left packet_drop handling still
thinking it had the whole chunk. This could cause a crash if
  a large packet drop came in. Fixed by adjusting the trunc length
  down to the limit.
- Large sacks with lots of segments could also have same issue. Changed
  duplicate and segment handling to use proper get_m_ptr function to
  pull each block from mbuf chains.
2007-06-15 17:59:57 +00:00
Randall Stewart
22a6719709 - Add VRF id to sctp_ifa structure, needed mainly in panda but useful
during deletes of ifa's in diff VRF's when applicable.
2007-06-15 03:16:48 +00:00
Randall Stewart
629b8f3e0f KTR_GEN -> KTR_SUBSYS (for Kris). 2007-06-15 02:34:36 +00:00
Randall Stewart
80fefe0a08 - Fix so ifn's are properly deleted when the ref count goes to 0.
- Fix so VRF's will clean themselves up when no references are around.
- Allow sctp_ifa to be passed into inpcb_bind, addr_mgmt_ep_sa to bypass
  normal validation checks.
- turn auto-asconf off for subset bound sockets
- Moves all logging to use KTR. This gets rid of most
  of the logging #ifdef's with a few exceptions reducing
  the number of config options for SCTP.
2007-06-14 22:59:04 +00:00
Randall Stewart
db4fd95b0e - fix bindx to check addresses against socket's protocol family 2007-06-13 14:39:41 +00:00
Robert Watson
2281b8f054 Remove IPX over IP tunneling support, which allows IPX routing over IP
tunnels, and was not MPSAFE.  The code can be easily restored in the
event that someone with an IPX over IP tunnel configuration can work
with me to test patches.

This removes one of five remaining consumers of NET_NEEDS_GIANT.

Approved by:	re (kensmith)
2007-06-13 14:01:43 +00:00
Randall Stewart
9a97252585 - Fixed cookie handling to calc an RTO when
its an INIT collision case.
- Fixed RTO calc to maintain a seperate variable to track
  if a RTO calc as been done, this allows the RTO var to be
  doubled during initial timeouts.
- Reduces the amount of stack used by process control.
- Use a constant for the peer chunk overhead.
- Name change to spell candidate correctly.
2007-06-13 01:31:53 +00:00
Bruce M Simpson
71498f308b Import rewrite of IPv4 socket multicast layer to support source-specific
and protocol-independent host mode multicast. The code is written to
accomodate IPv6, IGMPv3 and MLDv2 with only a little additional work.

This change only pertains to FreeBSD's use as a multicast end-station and
does not concern multicast routing; for an IGMPv3/MLDv2 router
implementation, consider the XORP project.

The work is based on Wilbert de Graaf's IGMPv3 code drop for FreeBSD 4.6,
which is available at: http://www.kloosterhof.com/wilbert/igmpv3.html

Summary
 * IPv4 multicast socket processing is now moved out of ip_output.c
   into a new module, in_mcast.c.
 * The in_mcast.c module implements the IPv4 legacy any-source API in
   terms of the protocol-independent source-specific API.
 * Source filters are lazy allocated as the common case does not use them.
   They are part of per inpcb state and are covered by the inpcb lock.
 * struct ip_mreqn is now supported to allow applications to specify
   multicast joins by interface index in the legacy IPv4 any-source API.
 * In UDP, an incoming multicast datagram only requires that the source
   port matches the 4-tuple if the socket was already bound by source port.
   An unbound socket SHOULD be able to receive multicasts sent from an
   ephemeral source port.
 * The UDP socket multicast filter mode defaults to exclusive, that is,
   sources present in the per-socket list will be blocked from delivery.
 * The RFC 3678 userland functions have been added to libc: setsourcefilter,
   getsourcefilter, setipv4sourcefilter, getipv4sourcefilter.
 * Definitions for IGMPv3 are merged but not yet used.
 * struct sockaddr_storage is now referenced from <netinet/in.h>. It
   is therefore defined there if not already declared in the same way
   as for the C99 types.
 * The RFC 1724 hack (specify 0.0.0.0/8 addresses to IP_MULTICAST_IF
   which are then interpreted as interface indexes) is now deprecated.
 * A patch for the Rhyolite.com routed in the FreeBSD base system
   is available in the -net archives. This only affects individuals
   running RIPv1 or RIPv2 via point-to-point and/or unnumbered interfaces.
 * Make IPv6 detach path similar to IPv4's in code flow; functionally same.
 * Bump __FreeBSD_version to 700048; see UPDATING.

This work was financially supported by another FreeBSD committer.

Obtained from:  p4://bms_netdev
Submitted by:   Wilbert de Graaf (original work)
Reviewed by:    rwatson (locking), silence from fenner,
		net@ (but with encouragement)
2007-06-12 16:24:56 +00:00
Randall Stewart
35918f8571 - Restructure so bindx functions are not done inline to socket option
but are a seperate call that can be re-used if needed.
- 64 bit issues
  o re-arrange cookie so it is better 64 bit aligned
  o For wire level things we need the packed attribute.
2007-06-12 11:21:00 +00:00
Robert Watson
32f9753cfb Eliminate now-unused SUSER_ALLOWJAIL arguments to priv_check_cred(); in
some cases, move to priv_check() if it was an operation on a thread and
no other flags were present.

Eliminate caller-side jail exception checking (also now-unused); jail
privilege exception code now goes solely in kern_jail.c.

We can't yet eliminate suser() due to some cases in the KAME code where
a privilege check is performed and then used in many different deferred
paths.  Do, however, move those prototypes to priv.h.

Reviewed by:	csjp
Obtained from:	TrustedBSD Project
2007-06-12 00:12:01 +00:00
Andre Oppermann
f194524fb1 Fix a case in tcp_do_segment() where tcp_update_sack_list() would
be called with an incorrect segment end value.  tcp_reass() may
trim segments when they overlap with already existing ones in the
reassembly queue.  Instead of saving the segment end value before
the call to tcp_reass() compute it on the fly based on the effective
segment length afterwards.

This bug was not really problematic as no information got lost and
the eventual SACK information computation was correct nontheless.

MFC after:	1 week
2007-06-10 21:07:21 +00:00
Andre Oppermann
e8949f7407 Fix style for comments, be more verbose and add some more. 2007-06-10 20:59:22 +00:00
Andre Oppermann
104ebb2a45 Make the handling of the tcp window explicit for the SYN_SENT case
in tcp_outout().  This is currently not strictly necessary but paves
the way to simplify the entire SYN options handling quite a bit.
Clarify comment.  No change in effective behavour with this commit.

RFC1323 requires the window field in a SYN (i.e., a <SYN> or
<SYN,ACK>) segment itself never be scaled.
2007-06-09 21:19:12 +00:00
Andre Oppermann
5396d0f8d8 Remove some bogosity from the SYN_SENT case in tcp_do_segment
and simplify handling of the send/receive window scaling.  No
change in effective behavour.

RFC1323 requires the window field in a SYN (i.e., a <SYN> or
<SYN,ACK>) segment itself never be scaled.

Noticed by:	yar
2007-06-09 21:09:49 +00:00
Andre Oppermann
b7de7d87a0 Don't send pure window updates when the peer has closed the connection
and won't ever send more data.
2007-06-09 19:39:14 +00:00
Andre Oppermann
f58747375d Handle a race condition on >2 core machines in tcp_timer() when
a timer issues a shutdown and a simultaneous close on the socket
happens.  This race condition is inherent in the current socket/
inpcb life cycle system but can be handled well.

Reported by:	kris
Tested by:	kris (on 8-core machine)
2007-06-09 17:49:39 +00:00
Randall Stewart
2bf083e4c9 - Opps.. takes out debug printfs I accidentally left in :-( 2007-06-09 13:53:27 +00:00
Randall Stewart
d00aff5d79 - fix send_failed notification contents
- Reorder send failed to be in correct order.
- Fixed calulation of init-ack to be right off
  mbuf lengths instead of the precalculated value. This
  will fix one 64 bit platform issue.
2007-06-09 13:46:57 +00:00
Yaroslav Tykhiy
22b971db87 Replace a constant with an already defined symbolic name for it.
Tested with: md5(1)
2007-06-08 13:43:28 +00:00
Yaroslav Tykhiy
dba3c50842 Add a sysctl for the purge run interval so that it can
be tuned along with the rest of hostcache parameters.
The new sysctl name is `net.inet.tcp.hostcache.prune'.
2007-06-08 13:35:51 +00:00
Randall Stewart
108df27c0b - RTO was not being initialized to 0, thus the rtt calculation
algoritm would not go through the proper initialization.
- The initialization was incorrect as well, causing problems in
  sat networks with > 1sec RTT
- Get rid of magic numbers in RTT calculations.
2007-06-08 10:57:11 +00:00
Andre Oppermann
45024be06f In tcp_hc_insert() we may have the case where we have hit the global
cache size limit but this bucket row is empty.  Normally we want to
recycle the oldest entry in the bucket row.  If there isn't any the
TAILQ_REMOVE leads to a panic by trying to remove a non-existing
element.  Fix this by just returning NULL and failing the insert.
This is not a problem as the TCP hostache is only advisory.

Submitted by:	jhb
2007-06-07 21:41:50 +00:00
Andre Oppermann
1f939165ce Correctly print SEQ and IRS in the corresponding log message in
syncache_expand().
2007-06-06 22:10:12 +00:00
Gleb Smirnoff
e9bf9fb67c Do not leak lock in the case of EEXIST error.
PR:		kern/92776
Submitted by:	Ed Schouten <Ed.Schouten tunix.nl>
2007-06-06 14:21:49 +00:00
Randall Stewart
5f26a41d17 - Fixes a case where doing a sysctl would leave locks held
when coping out association data.
- Fixes a small bug that prevented the SCTP_UNORDERED indication
  from going up to the app on a recv in the sinfo_flags field.
2007-06-06 00:40:41 +00:00
David Malone
041b706b2f Despite several examples in the kernel, the third argument of
sysctl_handle_int is not sizeof the int type you want to export.
The type must always be an int or an unsigned int.

Remove the instances where a sizeof(variable) is passed to stop
people accidently cut and pasting these examples.

In a few places this was sysctl_handle_int was being used on 64 bit
types, which would truncate the value to be exported.  In these
cases use sysctl_handle_quad to export them and change the format
to Q so that sysctl(1) can still print them.
2007-06-04 18:25:08 +00:00
Randall Stewart
f4c93d2405 - fix initial pcb vrf setting when the initial vrf is not the
default_vrf_id
- Missing lock/unlock of inp added as well in the v6 side.
- IFN hash table moves to sctppcbinfo since indexes are
  unique across systems (including different VRFs) this makes it easier
  to do ifn lookups.
2007-06-02 11:05:08 +00:00
Randall Stewart
ad21a36485 - Take out the broken table-id concept. Panda Routers have a M-VRF
concept that is NOT well thought out for a multi-homed transport
  protocol. So the useless table-id entries passed around need to
  be removed.
- Add a event timer for the zero copy api.
- Fix a bug in sctp_timer.c when searching for an alternate
  with the largest ssthresh (the compare was wrong).
2007-06-01 11:19:54 +00:00