when using the shutdown() command.
* If TCP no longer needs a socket, it will now set the flag FLAG_DELETE_ON_CLOSE;
when the socket is closed from the upper layers, it will set the FLAG_CLOSED
flag - and only if both are set, TCP will now delete the socket itself on
receive.
* This fixes bug #2189.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25278 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added data_node::flags field and currently only flag
DATA_NODE_READ_ONLY, indicating that the node is read-only (i.e.
a clone). If set, the node won't have any header or tail space. Not
being able to write to it is not yet enforced, though.
* Moved data_node::tail_space to data_header.
* Removed data_node:used_header_space/own_header_space.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25275 a95241bf-73f2-0310-859d-f6bbb57e9c96
not necessary, since the VFS makes sure (or should at least) that all
events are deselected when close() is called. ~0 isn't a valid event
anyway.
* Removed delete_select_sync_pool() in socket_free(). It's not
necessary, since the select_sync_pool is auto-destroyed when the last
event has been deselected (which the VFS should take care of).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25265 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Made the pointers const.
* Changed how the ARP module maintains its arp_entry::request_buffer: it
now uses the atomic_pointer*() functions to make sure there is no race
condition, and it's deleted only once.
* Getting an ARP entry would return uninitialized data, if the entry hadn't
been resolved yet.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25263 a95241bf-73f2-0310-859d-f6bbb57e9c96
although it put the freed space in the free list. Alternating
invocations of alloc_...() and free_...() would thus increase the
header space unboundedly.
* Unified the way a data_header and data_node access the header space.
Originally data_header::data_space and data_node::header_space had to
be kept in sync, which some functions failed to do. Introduced a
header_space structure, which is located in data_header and referenced
by data_node, so that accessing it either way does always keep both
structures in sync.
* Removed the special handling for the data node created with a buffer.
Since remove_{header,trailer}() and trim() could remove it without
knowing, the last reference to the first data header would be freed
prematurely, causing operations on freed memory, and in the end a
second free which screwed the object cache's free list. This crashed
Haiku e.g. when running OpenSSH's "forwarding" test. Now the first
created node is just a node like any other. It's allocated in the data
header, too.
* Changed the mechanism how data nodes are allocated. Now they will
always be allocated on a header associated with the buffer for which
they are created. This fixes a race condition when freeing them. They
would otherwise modify the free list of a header which might be
accessed by another thread at the same time (added a TODO explaining
how the old code could possibly be fixed). Also squashed several
TODOs related to running out of header space when allocating a node.
If the buffer runs out of header space, it will simply allocate a new
header, now.
* Dealt with some TODOs regarding reverting the buffer to its previous
state when running out of memory after allocating a few nodes.
* Added several TODOs.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25256 a95241bf-73f2-0310-859d-f6bbb57e9c96
arp_update_entry(). While arp_timer() was sending the last request
arp_update_entry() could be called (caused by an incoming reply) and
free the request buffer, which arp_timer() would free a moment later
again. The problem is not completely solved, since a duplicate reply can
still cause a double free. Checked in mainly for Axel's reading
pleasure. :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25252 a95241bf-73f2-0310-859d-f6bbb57e9c96
block would be incorrectly addressed when allocating a stream - this could
cause random blocks to be overwritten, and therefore could cause many sorts
of problems.
* Moved BFS_TRACING macro to the tracing_config.h file, and let it follow the
new semantics of those other macros in there.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25249 a95241bf-73f2-0310-859d-f6bbb57e9c96
if the other end is not a Haiku host (retrieving of urgent data is still
missing).
* Resolved TODO: SendData() now sends a SIGPIPE when trying to send on a
closed connection.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25245 a95241bf-73f2-0310-859d-f6bbb57e9c96
we know that the connection was torn down cleanly, and there are no inflight
segments floating around anymore.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25239 a95241bf-73f2-0310-859d-f6bbb57e9c96
fixes the "endless discussions" when closing a local connection - only
happened on a simultaneous close.
* A FIN in TIME_WAIT now updates the time-wait timer, as required by the
TCP specification.
* Entering TIME_WAIT now cancels all connection timers. We might want to
think about putting time wait connections into a separate hash, and delete
the socket early on.
* Added tracing support for send/receive, timers, and state changes.
* Cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25236 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Introduced the TCP_TRACING macro in tracing_config.h.
* Enlarged the default trace size to something a tiny bit useful (but still
acceptable for systems with little RAM).
* Cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25235 a95241bf-73f2-0310-859d-f6bbb57e9c96
The media kit will always call BMediaNode
and BMediaAddOn functions with valid pointers.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25232 a95241bf-73f2-0310-859d-f6bbb57e9c96
now used from various places that previously did not cancel all timers
they should have.
* When a connection moves to the CLOSED state, it should cancel all timers;
this prevents from sending a reset at the end of a connection.
* If the persist/delayed acknowledge timers were canceled too late, they might
still have tried to send something (which would eventually cause a reset
sent to the peer).
* Follow RFC 1337 with respect to time wait assassination prevention (ie.
we now ignore resets from peers in time wait state).
* _SegmentReceived() must not check the sequence of a time wait connection;
it prevented sending a reset when that was due (a new connection request
would time out, instead of fail immediately).
* Also, that method must never be called in the LISTEN or SYNCHRONIZE_SENT
states, so we don't need to check for those.
* We don't have to wait in Close() until the connection is actually closed -
removed a TODO. TCP should handle this internally.
* Renamed _ShutdownEgress() to _Shutdown().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25219 a95241bf-73f2-0310-859d-f6bbb57e9c96
one next. This should work around the problem Ingo observed with the OpenSSH
tests (not tested, though).
* The only TCP compliant fix for this problem would be to not enter time wait
for local connections at all (which I will do soon).
* Another work around other implementations use is to accept incoming
connections for time wait endpoints (the connection will then be replaced).
I'm not yet sure if I want that behaviour, though.
* Added tracing for unbinding endpoints (with stack trace) to investigate
another bug (sometimes closed connections aren't actually closed).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25218 a95241bf-73f2-0310-859d-f6bbb57e9c96
* cache paranoia was always enabled.
* Changed from paranoia on/off to levels. Adjusted the macros to take a
level argument.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25215 a95241bf-73f2-0310-859d-f6bbb57e9c96
- use the dano version by default
- s/ddraquire/ddaquire/
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25203 a95241bf-73f2-0310-859d-f6bbb57e9c96
- the dano version is exposed as v1.1 so drivers can use select with a simple ifdef
- add copyrights from the tty driver as I'll be copying code from it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25201 a95241bf-73f2-0310-859d-f6bbb57e9c96
check that is remains the sum of its data node used sizes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25195 a95241bf-73f2-0310-859d-f6bbb57e9c96
again.
* Publish /dev/ptmx. Opening it will open a fresh pty master. In
principle /dev/pt/ is obsolete now, but I guess we keep it around for
compatibility with BeOS. Though there shouldn't be many applications
opening a pty, that we might be interested in...
* New ioctls B_IOCTL_GET_TTY_INDEX (returns the tty index) and
B_IOCTL_GRANT_TTY (grants tty slave access rights).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25133 a95241bf-73f2-0310-859d-f6bbb57e9c96
* It is possible to acquire a tty that is already open, iff it is not a
controlling terminal yet and the process is a session leader.
* Also set the terminal process group when acquiring a controlling
terminal.
telnetd/login and sshd are a lot happier now (and so am I :-)).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25132 a95241bf-73f2-0310-859d-f6bbb57e9c96
is required, but Linux seems to do it. It also allows us to create
AF_INET socketpair()s -- not really needed, but probably nice for
testing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25126 a95241bf-73f2-0310-859d-f6bbb57e9c96
adding a block to its array. This could cause all kinds of trouble, and
fixes at least a part of #2148.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25125 a95241bf-73f2-0310-859d-f6bbb57e9c96
and loop until everything has been written. Non-blocking writes should
write as much as they can and return B_WOULD_BLOCK, if that wasn't the
whole request.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25122 a95241bf-73f2-0310-859d-f6bbb57e9c96
succeed after we have successfully sent the first buffer, even if not a
single byte of some following buffer could be sent. We should probably
even succeed whatever the error code -- not sure what is the reason
for only doing that for B_WOULD_BLOCK and B_INTERRUPTED.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25121 a95241bf-73f2-0310-859d-f6bbb57e9c96
