| Commit message (Collapse) | Author | Age | Files | Lines |
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option is now deprecated, as well as the KAME IPsec code.
What was FAST_IPSEC is now IPSEC.
Approved by: re
Sponsored by: Secure Computing
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call the sctp_free_remote_address() function.
- Assure that when we allocate a chunk the whoTo is NULL,
also when we free it and place it into the cache we NULL
it (that way the consolidation code will always work).
- Fix a small race, when a empty data holder is left on the stream
out queue, and both sides do a shutdown, the empty data holder
would prevent us from sending a SHUTDOWN-ACK and at the same time we
never would cleanup the empty holder (since nothing was ever in queue).
We now add a utility function that a) cleans up empty holders and
b) properly determines if there are still pending data chunks on
the stream out wheel.
Approved by: re@freebsd.org (Ken Smith)
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This commit includes only the kernel files, the rest of the files
will follow in a second commit.
Reviewed by: bz
Approved by: re
Supported by: Secure Computing
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an unsigned (returned by sizeof) also add cast to comparison check
for size bounds.
Approved by: re(bmah@freebsd.org)
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- 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)
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- 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).
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to deal with the VRF inline function -> becomes a macro now.
Submitted by: Matthew Jacobs
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- We need to init the INP_LOCK since otherwise for
non-SMP kernels you crash when you set the TOS.
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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.
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- 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.
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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.
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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.
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- 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.
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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.
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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).
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- Fixed a LOR in handling a cookie. Turns out create lock is applied.
And if we abort processing, this causes LOR. Changed to force the
timer to clean up, that way create lock is released.
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is expanded, size of expansion was not taken int consideration.
- Fix so vtag hash is 1 bigger so that it modulo's out
correctly, avoids a panic when restart with right modulo happens.
- do not dereference stcb when control->do_not_ref_stcb is set
- Fix up packet logging to not often use a lock and also to
add to options.
- Fix some logging option duplication in the sctputil.h
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it goes inline we may well blow the stack if witness and
such are enabled.
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hold a wq lock for the iterator. Panda uses a
silly recursive lock they hold through the timer.
- Add poor mans wireshark compile option..
- Allocate and start using SCTP_M_XXX for all SCTP_MALLOC() calls.
- sysctl now will get back the refcnt for viewing by onlookers.
Reviewed by: gnn
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- bounded cookie-life to 1 second minimum in socket option set.
- Delayed_ack_time becomes delayed_ack per new socket api document.
- Improve port number selection, we now use low/high bounds and
no chance of a endless loop. Only one call to random per bind
as well.
- fixes so set_peer_primary pre-screens addresses to be
valid to this host.
- maxseg did not allow setting on an assoc basis. We needed
to thus track and use an association value instead of a inp value.
- Fixed ep get of HB status to report back properly.
- use settings flag to tell if assoc level hb is on off not
the timer.. since the timer may still run if unconf address
are present.
- check for crazy ENABLE/DISABLE conditions.
- set and get of pmtud (fixed path mtu) not always taking into account ovh.
- Getting PMTU info on stcb only needs to return PMTUD_ENABLED if
any net is doing PMTU discovery.
- Panic or warning fixed to not do so when a valid ip frag is
taking place.
- sndrcvinfo appearing in both inp and stcb was full size, instead
of the non-pad version. This saves about 92 bytes from each struct
by carefully converting to use the smaller version.
- one-2-one model get(maxseg) would always get ep value, never the
tcb's value.
- The delayed ack time could be under a tick, this fixes so
it bounds it to at least 1 tick for platforms whos tick
is more than a ms.
- Fragment interleave level set to wrong default value.
- Fragment interleave could not set level 0.
- Defered stream reset was broken due to a guard check and ntohl issue.
- Found two lock order reversals and fixed.
- Tighten up address checking, if the user gives an address the sa_len
had better be set properly.
- Get asoc by assoc-id would return a locked tcb when it was asked
not to if the tcb was in the restart hash.
- sysctl to dig down and get more association details
Reviewed by: gnn
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- Fixed RTOinfo for bounding.
- Fixed connect() to return ECONNREFUSED when an ABORT is received.
- Added comments to direct Static Analysis not to look at some things
it does not understand (comments are /* sa_ignore XXXXX */)
- Bind when colliding was broken, missing not_found = 1 before
checking to see if the port was in use caused endless bind loop.
- Cookie life needs to be in milliseconds to conform to socket api.
- Cookie life is not supposed to change if its 0, On the assoc
level set we changed it to 0 opps.
- Two more static analysis issues identified by the cisco
tool. Null checks needed.
- An issue for sendfile(). Need to validate the correct
input argument.
- When sending failed due to a no route to host, we leaked
the mbuf chain failing to call m_freem().
- Fix #ifdef issue for getting hash block len when HAVE_SHA2 is NOT defined
Reviewed by: gnn
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- All printf that was surrounded by #ifdef SCTP_DEBUG moves to
a macro that does all of this. This removes all printfs from
the code and makes the code more portable and easier to
read.
- Static Analysis (cisco) - found a few bugs, but mostly we
add checks for NULL pointers and such to make the tool
happy. We now pass the Cisco SA tools checks except for
where it does not understand tailq/lists. We still need
to look at the coverity tools output too (this is like
the cisco SA tool) and see if it wants us to fix any other
items. Hopefully this will be the last major churn in the
code other than bug fixes.
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"Copyright (c) 2001-2007, by Cisco Systems,"
instead of
*Copyright (c) 2001-2007, Cisco Systems,"
- Also fix a few straglers that were still in 2006.
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to the coverity tool.. may even be the same one.. not sure).
- A bug in the way sctp_abort() and friends were
setting the IP_CLOSE flag.. and NOT passing the
last argument as a (,1)... so that things would
get freed..
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- PR-SCTP would ignore FWD-TSN's above a rwnd's worth
of TSN's (1 byte msgs).. this left the peer hopelessly
out of sync.. or an attacker. So now we abort the assoc.
- New IFN hash, also rename hashes to match addr/ifn now
that the vrf has multiple.
- Do not enable SCTP_PCB_FLAGS_RECVDATAIOEVNT per default
as defined in the Socket API ID.
- Export MTU information via sysctl.
- Vrf's need table id's. This is default for
BSD, but may be other things later when BSD
fully supports VRFs.
- Additional stream reset bug (caught by cisco dev-test).
- Additional validations for the address in sending a message (socket api).
-------- and -----
- Fix association notifications not to give the active open
side false notifications.
- Fix so sendfile and SENDALL will work properly (missing
flag to say socket sender is done).
- Fix Bug that prevented COOKIES from being retransmitted.
- Break out connectx into helper sub-models so that iox routines can
reuse the helpers.
- When an address is added during system init (non-dynamic mode) make
sure that the "defer use" flag is not set.
** its compiling on XR now :-D **
Reviewed by: gnn
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- Locks were not being unlocked when an invalid size chunk is
sent in.
- When a notification comes in, we cannot use it to look up
the fragment interleave stream information since its not
on a stream.
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set/clear it but would not do it. Now we will.
- Moved to latest socket api for extended sndrcv info struct.
- Moved to support all new levels of fragment interleave (0-2).
- Codenomicon security test updates - length checks and such.
- Bug in stream reset (2 actually).
- setpeerprimary could unlock a null pointer, fixed.
- Added a flag in the pcb so netstat can see if we are listening easier.
Obtained from: (some of the Listen changes from Weongyo Jeong)
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set/clear it but would not do it. Now we will.
- Moved to latest socket api for extended sndrcv info struct.
- Moved to support all new levels of fragment interleave.
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- Removed free-oqueue cache.
- Fix counter for sq entries
- Increased the amount of information retained
on ASOC_TSN logging on the association.
- Made it so with the ASOC_TSN logging on
sending or recieving an abort we dump the log.
- Went through and added invariant's around some
panic's that needed them.
- decrements went to atomic_subtact_int instead of add -1
- Removed residual count increment that threw off a
strm oq count.
- Tracks and complaints if we don't have a LAST fragment and
clean up the sp structure.
- Track a new stat that counts number of abandoned msgs that
happen if you close without reading.
- Fix lookup of frag point to be aware of a 0 assoc-id.
Reviewed by: gnn
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- name change of prefered -> preferred
- CMT fast recover code added.
- Comment fixes in CMT.
- We were not giving a reason of cant_start_asoc per socket api
if we failed to get init/or/cookie to bring up an assoc. Change
so we don't just give a generic "comm lost" but look at actual
states of dying assoc.
- change "crc32" arguments to "crc32c" to silence strict/noisy
compiler warnings when crc32() is also declared
- A few minor tweaks to get the portable stuff truely portable
for sctp6_usrreq.c :-D
- one-2-one style vrf match problem.
- window recovery would leave chks marked for retran
during window probes on the sent queue. This would then
cause an out-of-order problem and assure that the flight
size "problem" would occur.
- Solves a flight size logging issue that caused rwnd
overruns, flight size off as well as false retransmissions.g
- Macroize the up and down of flight size.
- Fix a ECNE bug in its counting.
- The strict_sacks options was causing aborts when window probing
was active, fix to make strict sacks a bit smarter about what
the next unsent TSN is.
- Fixes a one-2-one wakeup bug found by Martin Kulas.
- If-defed out form, Andre's copy routines pending his
commit of at least m_last().. need to adjust for 6.2 as
well.. since m_last won't exist.
Reviewed by: gnn
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- fixed a refcount bug in the new ifa structures.
- use vrf's from default stcb or inp whenever possible.
- Address limits raised to account for a full IP fragmented
packet (1000 addresses).
- flight size correcting updated to include one message only
and to handle case where the peer does not cumack the
next segment aka lists 1/1 in sack blocks..
- Various bad init/init-ack handling could cause a panic
since we tried to unlock the destroyed mutex. Fixes
so we properly exit when we need to destroy an assoc.
(Found by Cisco DevTest team :D)
- name rename in src-addr-selection from pass to sifa.
- route structure typedef'd to allow different platforms
and updated into sctp_os_bsd file.
- Max retransmissions a chunk can be made added.
Reviewed by: gnn
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incorrect, non-bundlable fragmentation.
- Added min residual to better control split points for
both how big a msg must be as well as how much needs
to be left over.
- With our new algo in place, we need to implicitly
set "end of msg" on the sp-> structure otherwise we
end up with "hung" associations.
- Room reserved up front in IP header by pushing IP
header to back of mbuf.
- Fix so FR's peg count of retransmissions needed.
- Fix so an unlucky chunk that never gets across
will kill the assoc via the kill timer and send an
abort too.
- Fix bug in sctp_input which can result in a crash.
- Do not strip off IP options anymore.
- Clean up sctp_calculate_rto().
- Get rid of unused sysctl.
- Fixed so we discard all M-Cast
- Fixed so port check done AFTER checksum
- Fixed bug in fragmentation code that prevented
us from fragmenting a small complete message when
we needed to.
- Window probes were not marked back to unsent and
flight adjusted when a sack came in with no
window change or accepting of the probe data.
We now fix this with having a mark on the net and
the chunk so we can clear it out when the sack arrives
forcing it to retran just like it was "new" this
improves the handling of window probes, which were
dropped by the receiver.
- Tighten AUTH protocol error checks during INIT/INIT-ACK exchange
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shutdown which caused extra abort from peer.
- RTT time calculation was not being done in
express sack handling since it refered to an unused
variable (rto_pending). Removed variable.
- socket buffer high water access macro-ized.
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- moved away from ifn/ifa access to sctp_ifa/sctp_ifn
built and managed by the add-ip code.
- cleaned up add-ip code to use the iterator
- made iterator be a thread, which enables auto-asconf now.
- rewrote and cleaned up source address selection (also
made it use new structures).
- Fixed a couple of memory leaks.
- DACK now settable as to how many packets to delay as
well as time.
- connectx() to latest socket API, new associd arg.
- Fixed issue with revoking and loosing potential to
send when we inflate the flight size. We now inflate
the cwnd too and deflate it later when the revoked
chunk is sent or acked.
- Got rid of some temp debug code
- src addr selection moved to a common file (sctp_output.c)
- Support for simple VRF's (we have support for multi-vfr
via compile switch that is scrubbed from BSD but we won't
need multi-vrf until we first get VRF :-D)
- Rest of mib work for address information now done
- Limit number of addresses in INIT/INIT-ACK to
a #def (30).
Reviewed by: gnn
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- ZONE get now also take a type cast so it does the
cast like mtod does.
- New macro SCTP_LIST_EMPTY, which in bsd is just
LIST_EMPTY
- Removal of const in some of the static hmac functions
(not needed)
- Store length changes to allow for new fields in auth
- Auth code updated to current draft (this should be the
RFC version we think).
- use uint8_t instead of u_char in LOOPBACK address comparison
- Some u_int32_t converted to uint32_t (in crc code)
- A bug was found in the mib counts for ordered/unordered
count, this was fixed (was referencing a freed mbuf).
- SCTP_ASOCLOG_OF_TSNS added (code will probably disappear
after my testing completes. It allows us to keep a
small log on each assoc of the last 40 TSN's in/out and
stream assignment. It is NOT in options and so is only
good for private builds.
- Some CMT changes in prep for Jana fixing his problem
with reneging when CMT is enabled (Concurrent Multipath
Transfer = CMT).
- Some missing mib stats added.
- Correction to number of open assoc's count in mib
- Correction to os_bsd.h to get right sha2 macros
- Add of special AUTH_04 flags so you can compile the code
with the old format (in case the peer does not yet support
the latest auth code).
- Nonce sum was incorrectly being set in when ecn_nonce was
NOT on.
- LOR in listen with implicit bind found and fixed.
- Moved away from using mbuf's for socket options to using
just data pointers. The mbufs were used to harmonize
NetBSD code since both Net and Open used this method. We
have decided to move away from that and more conform to
FreeBSD style (which makes more sense).
- Very very nasty bug found in some of my "debug" code. The
cookie_how collision case tracking had an endless loop in
it if you got a second retransmission of a cookie collision
case. This would lock up a CPU .. ugly..
- auth function goes to using size_t instead of int which
conforms to socketapi better
- Found the nasty bug that happens after 9 days of testing.. you
get the data chunk, deliver it and due to the reference to a ch->
that every now and then has been deleted (depending on the postion
in the mbuf) you have an invalid ch->ch.flags.. and thus you don't
advance the stream sequence number.. so you block the stream
permanently. The fix is to make local variables of these guys
and set them up before you have any chance of trimming the
mbuf.
- style fix in sctp_util.h, not sure how this got bad maybe in
the last patch? (aka it may not be in the real source).
- Found interesting bug when using the extended snd/rcv info where
we would get an error on receiving with this. Thats because
it was NOT padded to the same size as the snd_rcv info. We
increase (add the pad) so the two structs are the same size
in sctp_uio.h
- In sctp_usrreq.c one of the most common things we did for
socket options was to cast the pointer and validate the size.
This as been macro-ized to help make the code more readable.
- in sctputil.c two things, the socketapi class found a missing
flag type (the next msg is a notification) and a missing
scope recovery was also fixed.
Reviewed by: gnn
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- Finally all splxx() are removed
- Count error fixed in mapping array which might
cause a wrong cumack generation.
- Invariants around panic for case D + printf when no invariants.
- one-to-one model race condition fixed by using
a pre-formed connection and then completing the
work so accept won't happen on a non-formed
association.
- Some additional paranoia checks in sctp_output.
- Locks that were missing in the accept code.
Approved by: gnn
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- Added a short time wait (not used yet) constant
- Corrected the type of the crc32c table (it was
unsigned long and really is a uint32_t
- Got rid of the user of MHeaders until they
are truely needed by lower layers.
- Fixed an initialization problem in the readq structure
(ordering was off).
- Found yet another collision bug when the random number
generator returns two numbers on one side (during a collision)
that are the same. Also added some tracking of cookies
that will go away when we know that we have the last collision
bug gone.
- Fixed an init bug for book_size_scale, that was causing
Early FR code to run when it should not.
- Fixed a flight size tracking bug that was associated with
Early FR but due to above bug also effected all FR's
- Fixed it so Max Burst also will apply to Fast Retransmit.
- Fixed a bug in the temporary logging code that allowed a
static log array overflow
- hashinit_flags is now used.
- Two last mcopym's were converted to the macro sctp_m_copym that
has always been used by all other places
- macro sctp_m_copym was converted to upper case.
- We now validate sinfo_flags on input (we did not before).
- Fixed a bug that prevented a user from sending data and immediately
shuting down with one send operation.
- Moved to use hashdestroy instead of free() in our macros.
- Fixed an init problem in our timed_wait vtag where we
did not fully initialize our time-wait blocks.
- Timer stops were re-positioned.
- A pcb cleanup method was added, however this probably will
not be used in BSD.. unless we make module loadable protocols
- I think this fixes the mysterious timer bug.. it was a
ordering of locks problem in the way we did timers. It
now conforms to the timeout(9) manual (except for the
_drain part, we had to do this a different way due
to locks).
- Fixed error return code so we get either CONNREUSED or CONNRESET
depending on where one is in progression
- Purged an unused clone macro.
- Fixed a read erro code issue where we were NOT getting the proper
error when the connection was reset.
- Purged an unused clone macro.
- Fixed a read erro code issue where we were NOT getting the proper
error when the connection was reset.
Approved by: gnn
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access plus timers. This makes the code
more portable and able to change out the
mbuf or timer system used more easily ;-)
b) removal of all use of pkt-hdr's until only
the places we need them (before ip_output routines).
c) remove a bunch of code not needed due to <b> aka
worrying about pkthdr's :-)
d) There was one last reorder problem it looks where
if a restart occur's and we release and relock (at
the point where we setup our alias vtag) we would
end up possibly getting the wrong TSN in place. The
code that fixed the TSN's just needed to be shifted
around BEFORE the release of the lock.. also code that
set the state (since this also could contribute).
Approved by: gnn
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2) Fix all "magic numbers" to be constants.
3) A collision case that would generate two associations to
the same peer due to a missing lock is fixed.
4) Added tracking of where timers are stopped.
Approved by: gnn
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not being aquired. This meant that when we cleanup
the outbound we may have one in transit to be
added with the old sequence number. This is bad
since then we loose a message :(
Also the report_outbound needed to have the right
lock when its called which it did not.. I added
the lock with of course a flag since we want to
have the lock before we call it in the restart
case.
This also fixed the FIX ME case where, in the cookie
collision case, we mark for retransmit any that
were bundled with the cookie that was dropped.
This also means changes to the output routine
so we can assure getting the COOKIE-ACK sent
BEFORE we retransmit the Data.
Approved by: gnn
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a colliding INIT. This if fine except when we have
data outstanding... we basically reset it to the
previous value it was.. so then we end up assigning
the same TSN to two different data chunks.
This patch:
1) Finds a missing lock for when we change the stream
numbers during COOKIE and INIT-ACK processing.. we
were NOT locking the send_buffer.. which COULD cause
problems (found by inspection looking for <2>)
2) Fixes a case during a colliding INIT where we incorrectly
reset the sending Sequence thus in some cases duplicately
assigning a TSN.
3) Additional enhancments to logging so we can see strm/tsn in
the receiver AND new tracking to watch what the sender
is doing with TSN and STRM seq's.
Approved by: gnn
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reset comes in we need to calculate the length and
therefore the number of listed streams (if any) based
on the TLV type. Otherwise if we get a retran we could
in theory panic by sending a notification to a user with
a incorrect list and thus no memory listing the streams.
Found in IOS by devtest :-)
Approved by: gnn
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copy's were incorrect and so was the locking.
-A bug was also found that would create a race and
panic when an abort arrived on a socket being read
from.
-Also fix the reader to get MSG_TRUNC when a partial
delivery is aborted.
-Also addresses a couple of coverity caught error path
memory leaks and a couple of other valid complaints
Approved by: gnn
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This also moves two 16 bit int's to become 32 bit
values so we do not have to use atomic_add_16.
Most of the changes are %p, casts and other various
nasty's that were in the orignal code base. With this
commit my machine will now do a build universe.. however
I as yet have not tested on a 64bit machine .. it may not work :-(
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from my supplied patch.
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%p changed in multiple prints
the mtod() was also fixed.
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work is not just mine, but it is also the works of Peter Lei
and Michael Tuexen. They both are my two key other developers
working on the project.. and they need ata-boy's too:
****
peterlei@cisco.com
tuexen@fh-muenster.de
****
I did do a make sysent which updated the
syscall's and sysproto.. I hope that is correct... without
it you don't build since we have new syscalls for SCTP :-0
So go out and look at the NOTES, add
option SCTP (make sure inet and inet6 are present too)
and play with SCTP.
I will see about comitting some test tools I have after I
figure out where I should place them. I also have a
lib (libsctp.a) that adds some of the missing socketapi
functions that I need to put into lib's.. I will talk
to George about this :-)
There may still be some 64 bit issues in here, none of
us have a 64 bit processor to test with yet.. Michael
may have a MAC but thats another beast too..
If you have a mac and want to use SCTP contact Michael
he maintains a web site with a loadable module with
this code :-)
Reviewed by: gnn
Approved by: gnn
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