fixes rhbz 790749 use after free of SpiceChannelEventInfo.
The lifetime of the SpiceChannelEventInfo was that of RedsStream, but it
is used by main_dispatcher_handle_channel_event after the RedsStream is
freed for the cursor and display channels. Making SCEI allocation be at
RedsStream allocation, and deallocation after the DESTROY event is
processed by core->channel_event, fixes use after free.
spicevmc calls red_channel_client_destroy() on the rcc when it disconnects
since we don't want to delay the destroy until the session gets closed as
spicevmc channels can be opened, closed and opened again during a single
session.
This causes red_channel_client_destroy() to get called twice, triggering
an assert, when a connected channel gets destroyed.
This was fixed with commit ffc4de01e6 for
the case where: a spicevmc channel was open on client disconnected, and
the main channel disconnect gets handled first.
But the channel can also be destroyed when the chardev gets unregistered
with the spice-server. This path still triggers the assert.
This patch fixes this by adding a destroying flag to the rcc struct, and
also moves the previous fix over to the same, more clean, method of
detecting this special case.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This matches what we do in client/Makefile.am to actually run the
python scripts, which is to use the python binary we find first,
preferring 'python2' over 'python'. This makes the compile work on odd
systems such as Arch Linux where the python binary is actually python3.
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
dc7855967f did this for the TCP_NODELAY and IP_TOS calls; we should do
it for priority as well if necessary.
We also #ifdef the setting of the low-level socket priority based on
whether we have a definition of SO_PRIORITY available. This option is
not available on Illumos/Solaris platforms; however, since we set IP_TOS
anyway it is not a big deal to omit it here.
output to send a SIGIO signal to the running program. However, we don't
handle this signal anywhere in the code, so setting the option is
unnecessary.
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
With Daniel P. Berrange's patches to allow use of pre-supplied fd's
as channels, we can no longer be sure that our connections are TCP
sockets, so it makes no sense to complain if a TCP/IP specific
setsockopt fails with an errno of ENOTSUP.
Note that this extends Daniel's commit 492ddb5d1d
which already added the same check to server/inputs_channel.c
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The 'make syntax-check' target is used to perform various code
style sanity checks, as well as to detect certain trivial error
patterns. The target is placed in GNUmakefile, instead of Makefile.am
since it relies on GNU specific make extensions.
The actual GNUmakefile and maint.mk files are taken from the
GNULIB project, unchanged
The cfg.mk file is used to configure which of the syntax checks
are activated, to allow addition of new project specific syntax
checks, and to blacklist certain files which should not be checked
* .mailmap: Add mapping for various broken email addrs in
commit log, to stop complaints about AUTHORS file missing
entries
* GNUmakefile: define the 'syntax-check' rule
* maint.mk: definition of standard syntax checks
* cfg.mk: configuration for checks
The COPYING file already contains the license text, so the README
file need not repeat it. Instead put in a description of what
SPICE is, simple install instructions & pointers to mailing lists
and bug trackers
Since free() takes a void* parameters do not need to be cast.
The existing code here is actally fine, but it trips up the
syntax-check rule, so tweak it to an equivalent construct
which passes the syntax check
