When using config.h, it must be the very first include in all source
files since it contains #define that may change the compilation process
(eg libc structure layout changes when it's used to enable large file
support on 32 bit x86 archs). This commit adds it at the beginning
of all .c and .cpp files
spice client and spice server shares code from
common/{gdi,gl,sw}_canvas.[ch]. However, while most of the code is
shared, the server code wants a canvas compiled with
SW_CANVAS_IMAGE_CACHE defined while the client code wants a canvas
compiled with SW_CANVAS_CACHE.
The initial autotools refactoring didn't take that into account,
this is now fixed by this commit. After this commit, the canvas
files from common/ are no longer compiled as part of the
libspice-common.la convenience library. Instead, there are "proxy"
canvas source files in client/ and server/ which #include the
appropriate C files after defining the relevant #define for the
binary that is being built.
To prevent misuse of the canvas c files and headers in common/,
SPICE_CANVAS_INTERNAL must be set when including the canvas headers
from common/ or when building the c files from common/ otherwise
the build will error out.
spice Makefile.am setup is a bit confusing, with source file
names being listed several times in different Makefile.am
(generally, once in EXTRA_DIST and another time in another
Makefile.am in _SOURCES). The client binaries are built
by client/x11/Makefile.am, which means recursing into client,
then into x11 to finally build spicec. This Makefile.am is
also referencing files from common/ and client/, which is
a bit unusual with autotools.
This patch attempts to simplify the build process to get
something more usual from an autotools point of view.
The source from common/ are compiled into a libtool convenience
library, which the server and the client links against which avoids
referencing source files from common/ when building the server and
the client. The client is built in client/Makefile.am and directly
builds files from x11/ windows/ and gui/ if needed (without
recursing in these subdirectories).
This makes the build simpler to understand, and also makes it
possible to list source files once, which avoids potential
make distcheck breakage when adding new files.
There is a regression in this patch with respect to
sw_canvas/gl_canvas/gdi_canvas. They should be built with
different preprocessor #defines resulting in different behaviour
of the canvas for the client and the server. However, this is not
currently the case, both the client and the server will use the same
code for now (which probably means one of them is broken). This will
be fixed in a subsequent commit.
make distcheck passes, but compilation on windows using the
autotools build system hasn't been tested, which means it's likely
to be broken. It shouldn't be too hard ot fix it though, just let
me know of any issues with this.
canvas_base.c tries to define PANIC, but it might already be set
if eg client/debug.h has been included before. All the other
macros in this file are guarded by #ifndef, this commit adds
the missing #ifndef to PANIC. Note that this is just a bandaid,
ideally common/ would contain a logging frameword, and these
macros would only be defined once instead of being defined in
several places.
client/ contains several .cpp file which only #include a .c file
of the same name. This is unusual and seems to only be done to
get C++ name mangling on the symbols defined in the C file.
Now that all headers files in common/ use extern "C", these
wrappers are no longer useful.
Since some spice C++ code is using code from common/, the C
functions need to be marked as such for the C++ compiler, otherwise
we'll get linkage issues.
configure.ac defines a SPICEC_STATIC_LINKAGE_BDYNAMIC variable
when --enable-static-linkage is not set, but it's never used.
SPICEC_STATIC_LINKAGE_BSTATIC is used in client/, but since we
are using libtool, it might be more appropriate to use
'make LDFLAGS="-all-static"' to achieve static link.
Most uses of AC_ARG_ENABLE were buggy:
- when passing --disable-xxx, configure.ac would behave as if it
was passed --enable-xxx
- passing --enable-xxx=foo would "leak" into the summary, ie the
summary (at the end of configure) would say "xxx: foo" instead
of "xxx: yes"
This patch fixes these 2 issues.
This fixes fdo bug #32896:
"Subject in certificates is stored in following format (values separated by
comma and space):
grep Subject: server-cert.pem | awk -F": " '{print $2}'
O=REDHAT, CN=10.34.58.2
While spicec expects that values in host subject are separated only by comma:
spicec --host-subject "O=REDHAT,CN=10.34.58.2"
"
In this case, ignoring spaces make it much easier to directly copy and paste
the subject line from certificates.
When compiling spice with make CFLAGS="-g3 -ggdb3 -O0 -Wall -Werror",
the build broken because of a few unused variables/missing returns.
This patch fixes these warnings.
Commit 774e5bd36f changed
- dest->source.pixmap.x_image->data +
+ (uint8_t *)pixman_image_get_stride(dest->source.pixmap.pixman_image) +
The correct accessor to use is pixman_image_get_data. Thanks to gcc
4.6 for warning about a "different size" int to pointer conversion.
The server Makefile.am rules for marshallers generation are
prefixed with AM_V_SILENT to integrate nicely with automake silent
rules. The same AM_V_SILENT prefix isn't used in client/Makefile.am
resulting in verbose output even when automake silent mode is
enabled. This commit removes this verbosity.
spice configure.ac has some code to detect if the compiler has
a special attribute to tag some functions so that they generate a
warning when their return value isn't checked. However, this test
is broken (the gcc attribute name is "warn_unused_result", not
"__warn_unused_result__" and WARN_UNUSED_RESULT is unused anyway
since spice-protocol provides SPICE_GNUC_WARN_UNUSED_RESULT. Thus
we can just drop that block of code from configure.ac
The check this patch removes causes us to not set vdagent to NULL, nor
update the mouse mode when the guest agent disconnects when no client is
attached. Which leads to a non working mouse, and on agent reconnect a
"spice_server_char_device_add_interface: vdagent already attached" message
instead of a successful re-add of the agent interface .
This ensures that if the client or agent connects to the client-agent
"tunnel" while the other side is halfway through sending a multi part
message, the rest of the message gets discarded, and the connecting
party starts getting data at the beginning of the next message.
The agent message filter keeps track of messages as they are being send
reset the relevant filter to its initial state when one of the 2 ends
of the agent<->client "tunnel" disconnects.
read_from_vdi_port calls dispatch_vdi_port data, which will disconnect
the guest agent if it sends invalid data. It would then try to read more
data from the disconnected guest agent resulting in a NULL ptr dereference,
this patch fixes this.
write_to_vdi_port() was checking for reds->agent_state.connected to determine
wether it could write queued data. But agent_state.connected reflects if
*both* ends are connected. If the client has disconnected, but the guest agent
is still connected and some data is still pending (like a final clipboard
release from the client), then this data should be written to the guest agent.
We were calling reds_reset_vdp on client disconnect, which is not a good
idea. reds_reset_vdp does 3 things:
1) It resets the state related to reading chunks from the spicevmc virtio
port. If the client disconnects while the guest agent is in the middle
of sending a chunk, this will lead to an inconsistent state, and lots
of printing of "dispatch_vdi_port_data: invalid port" messages caused
by this inconsistent state sometimes followed by a segfault.
This can be triggered by copy and pasting something large (say
a screenshot) from the guest to the spice-gtk client, as the spice-gtk
client currently has a bug causing it to crash when receiving a multi
chunk vdagent messages. Without this patch (and with the spice-gtk bug
present) I can consistently reproduce this.
2) It clears any buffered writes from the client to the guest still pending
because the virtio port cannot consume data fast enough. Since the agent
itself is still running fine, throwing away writes for it because the
client has disconnected makes no sense. Esp, since on clean exit the
client may very well send a clipboard release message directly
before closing the connection, and this may get lost this way.
3) It sets client_agent_started to false, this is the only thing which
actually makes sense to do on client disconnect.
Note that since we no longer reset the vdp state on client disconnect, we
must now reset it on agent disconnect even if we don't have a client. So
the reds_reset_vdp call in reds_agent_remove() gets moved to the top,
above both the agent_state.connected and reds->peer checks which will
both fail in the no client case.
dispatch_vdi_port_data, was calling vdi_read_buf_release when no client
is connected to free the passed in buf. The only difference between
vdi_read_buf_release and directly adding the buffer back to the ring
with ring_add, is that vdi_read_buf_release calls read_from_vdi_port
after adding the buffer back. But dispatch_vdi_port_data only gets called
from read_from_vdi_port itself, thus this would lead to recursing into
read_from_vdi_port. read_from_vdi_port is protected against recursion and
will immediately return if called recursively. Thus calling
vdi_read_buf_release from dispatch_vdi_port_data is pointless, instead
simply putting the buffer back in the ring suffices.
Also bump SPICE_SERVER_VERSION to 0x000801 as 0.8.1 will be the
first version with the new API for this, and we need to be able to
detect the presence of this API in qemu.
Although ICCCM 2.2. Responsibilities of the Selection Owner:
http://tronche.com/gui/x/icccm/sec-2.html#s-2.2
Clearly states (about selection notify events):
The owner should set the specified selection, target, time, and property
arguments to the values received in the SelectionRequest event.
xsel sets the selection notify event target member to the incr atom when it
is going to send the clipboard data incremental, rather then setting it to
the UTF8_STRING atom (which was the target of the SelectionRequest).
Work around this (esp as it is likely other programs may get this wrong too)
and accept the incr atom as a valid target in a selection notify event.
This fixes Alon's test with running:
python -c "print list(range(1000))" | xsel -i -b
on the client.
Some apps (bad xsel, bad!) send invalid Atoms in their TARGETS property,
causing spicec to exit because of an XError. This patch makes spicec survive
this scenario.
For more info on the xsel bug, see:
https://bugzilla.redhat.com/show_bug.cgi?id=690214
clang static analyzer warned that 'len' was computed but never
used in glc_vertex2d. glc_stroke_line_dash has side effects so
we have to call it, but we don't need to save its return value
since it's not used.
When OpenGL is enabled, build fails in DisplayChannel::create_surface
because Canvas *canvas is declared twice. Remove the first
declaration to fix compilation.
