Commit Graph

16 Commits

Author SHA1 Message Date
Christian Schoenebeck
af46a3b233 hw/9pfs/9p-synth: added directory for readdir test
This will provide the following virtual files by the 9pfs
synth driver:

  - /ReadDirDir/ReadDirFile99
  - /ReadDirDir/ReadDirFile98
  ...
  - /ReadDirDir/ReadDirFile1
  - /ReadDirDir/ReadDirFile0

This virtual directory and its virtual 100 files will be
used by the upcoming 9pfs readdir tests.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <5408c28c8de25dd575b745cef63bf785305ccef2.1579567020.git.qemu_oss@crudebyte.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-02-08 09:29:04 +01:00
Marc-André Lureau
6ce7177ae2 9p: fix leak in synth_name_to_path()
Leak found thanks to ASAN:

Direct leak of 8 byte(s) in 1 object(s) allocated from:
    #0 0x55995789ac90 in __interceptor_malloc (/home/elmarco/src/qemu/build/x86_64-softmmu/qemu-system-x86_64+0x1510c90)
    #1 0x7f0a91190f0c in g_malloc /home/elmarco/src/gnome/glib/builddir/../glib/gmem.c:94
    #2 0x5599580a281c in v9fs_path_copy /home/elmarco/src/qemu/hw/9pfs/9p.c:196:17
    #3 0x559958f9ec5d in coroutine_trampoline /home/elmarco/src/qemu/util/coroutine-ucontext.c:116:9
    #4 0x7f0a8766ebbf  (/lib64/libc.so.6+0x50bbf)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
2018-02-19 18:27:32 +01:00
Greg Kurz
357e2f7f4e tests: virtio-9p: add FLUSH operation test
The idea is to send a victim request that will possibly block in the
server and to send a flush request to cancel the victim request.

This patch adds two test to verifiy that:
- the server does not reply to a victim request that was actually
  cancelled
- the server replies to the flush request after replying to the
  victim request if it could not cancel it

9p request cancellation reference:

http://man.cat-v.org/plan_9/5/flush

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
(groug, change the test to only write a single byte to avoid
        any alignment or endianess consideration)
2018-02-02 11:11:55 +01:00
Greg Kurz
354b86f85f tests: virtio-9p: add WRITE operation test
Trivial test of a successful write.

Signed-off-by: Greg Kurz <groug@kaod.org>
(groug, handle potential overflow when computing request size,
        add missing g_free(buf),
        backend handles one written byte at a time to validate
        the server doesn't do short-reads)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-01 21:21:28 +01:00
Greg Kurz
82469aaefe tests: virtio-9p: add LOPEN operation test
Trivial test of a successful open.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-01 21:21:28 +01:00
Greg Kurz
2893ddd598 tests: virtio-9p: use the synth backend
The purpose of virtio-9p-test is to test the virtio-9p device, especially
the 9p server state machine. We don't really care what fsdev backend we're
using. Moreover, if we want to be able to test the flush request or a
device reset with in-flights I/O, it is close to impossible to achieve
with a physical backend because we cannot ask it reliably to put an I/O
on hold at a specific point in time.

Fortunately, we can do that with the synthetic backend, which allows to
register callbacks on read/write accesses to a specific file. This will
be used by a later patch to test the 9P flush request.

The walk request test is converted to using the synth backend.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-01 21:21:27 +01:00
Greg Kurz
65603a801e fsdev: improve error handling of backend init
This patch changes some error messages in the backend init code and
convert backends to propagate QEMU Error objects instead of calling
error_report().

One notable improvement is that the local backend now provides a more
detailed error report when it fails to open the shared directory.

Signed-off-by: Greg Kurz <groug@kaod.org>
2018-01-08 11:18:23 +01:00
Marc-André Lureau
453a1b234f 9pfs: replace g_malloc()+memcpy() with g_memdup()
I found these pattern via grepping the source tree. I don't have a
coccinelle script for it!

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-06-29 15:11:50 +02:00
Greg Kurz
b05528b533 9p: synth: drop v9fs_ prefix
To have shorter lines and be consistent with other fs devices.

Acked-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2016-07-01 14:38:54 +02:00
Greg Kurz
635324e83e 9p: switch back to readdir()
This patch changes the 9p code to use readdir() again instead of
readdir_r(), which is deprecated in glibc 2.24.

All the locking was put in place by a previous patch.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
2016-06-06 11:52:34 +02:00
Greg Kurz
aae91ad9ae 9p: some more cleanup in #include directives
The "9p-attr.h" header isn't needed by 9p synth and virtio 9p.

While here, also drop last references to virtio from 9p synth since it is
now transport agnostic code.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
2016-06-06 11:52:34 +02:00
Veronia Bahaa
f348b6d1a5 util: move declarations out of qemu-common.h
Move declarations out of qemu-common.h for functions declared in
utils/ files: e.g. include/qemu/path.h for utils/path.c.
Move inline functions out of qemu-common.h and into new files (e.g.
include/qemu/bcd.h)

Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:17 +01:00
Peter Maydell
fbc0412709 9pfs: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-18-git-send-email-peter.maydell@linaro.org
2016-01-29 15:07:23 +00:00
Wei Liu
ebe74f8ba2 9pfs: break out 9p.h from virtio-9p.h
Move out generic definitions from virtio-9p.h to 9p.h. Fix header
inclusions.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2016-01-08 15:25:30 +05:30
Wei Liu
267ae092e2 9pfs: rename virtio-9p-xattr{,-user}.{c,h} to 9p-xattr{,-user}.{c,h}
These three files are not virtio specific. Rename them to generic
names.

Fix comments and header inclusion in various files.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2016-01-08 12:47:35 +05:30
Wei Liu
364031f179 9pfs: rename virtio-9p-synth.{c,h} to 9p-synth.{c,h}
These two files are not virtio specific. Rename them to use generic
names.

Fix includes in various C files. Change define guards and comments
in header files.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
2016-01-08 12:40:55 +05:30