Commit Graph

552 Commits

Author SHA1 Message Date
Hervé Poussineau 5c843af226 slirp: fill error when failing to initialize user network
With "-netdev user,id=net0,dns=1.2.3.4"
error was:
qemu-system-i386: -netdev user,id=net0,dns=1.2.3.4: Device 'user' could not be initialized

Error is now:
qemu-system-i386: -netdev user,id=net0,dns=1.2.3.4: DNS doesn't belong to network

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2017-08-03 00:24:31 +02:00
Yunjian Wang 41d4e5ec9f vhost-user: fix watcher need be removed when vhost-user hotplug
"nc" is freed after hotplug vhost-user, but the watcher is not removed.
The QEMU crash when the watcher access the "nc" when socket disconnects.

    Program received signal SIGSEGV, Segmentation fault.
    #0  object_get_class (obj=obj@entry=0x2) at qom/object.c:750
    #1  0x00007f9bb4180da1 in qemu_chr_fe_disconnect (be=<optimized out>) at chardev/char-fe.c:372
    #2  0x00007f9bb40d1100 in net_vhost_user_watch (chan=<optimized out>, cond=<optimized out>, opaque=<optimized out>) at net/vhost-user.c:188
    #3  0x00007f9baf97f99a in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
    #4  0x00007f9bb41d7ebc in glib_pollfds_poll () at util/main-loop.c:213
    #5  os_host_main_loop_wait (timeout=<optimized out>) at util/main-loop.c:261
    #6  main_loop_wait (nonblocking=nonblocking@entry=0) at util/main-loop.c:515
    #7  0x00007f9bb3e266a7 in main_loop () at vl.c:1917
    #8  main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4786

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-08-02 00:13:26 +03:00
Vladimir Sementsov-Ogievskiy 8908eb1a4a trace-events: fix code style: print 0x before hex numbers
The only exception are groups of numers separated by symbols
'.', ' ', ':', '/', like 'ab.09.7d'.

This patch is made by the following:

> find . -name trace-events | xargs python script.py

where script.py is the following python script:
=========================
 #!/usr/bin/env python

import sys
import re
import fileinput

rhex = '%[-+ *.0-9]*(?:[hljztL]|ll|hh)?(?:x|X|"\s*PRI[xX][^"]*"?)'
rgroup = re.compile('((?:' + rhex + '[.:/ ])+' + rhex + ')')
rbad = re.compile('(?<!0x)' + rhex)

files = sys.argv[1:]

for fname in files:
    for line in fileinput.input(fname, inplace=True):
        arr = re.split(rgroup, line)
        for i in range(0, len(arr), 2):
            arr[i] = re.sub(rbad, '0x\g<0>', arr[i])

        sys.stdout.write(''.join(arr))
=========================

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20170731160135.12101-5-vsementsov@virtuozzo.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-08-01 12:13:07 +01:00
Stefan Hajnoczi d87aa13803 trace: add trace_event_get_state_backends()
Code that checks dstate is unaware of SystemTap and LTTng UST dstate, so
the following trace event will not fire when solely enabled by SystemTap
or LTTng UST:

  if (trace_event_get_state(TRACE_MY_EVENT)) {
      str = g_strdup_printf("Expensive string to generate ...",
                            ...);
      trace_my_event(str);
      g_free(str);
  }

Add trace_event_get_state_backends() to fetch backend dstate.  Those
backends that use QEMU dstate fetch it as part of
generate_h_backend_dstate().

Update existing trace_event_get_state() callers to use
trace_event_get_state_backends() instead.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170731140718.22010-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-08-01 12:13:07 +01:00
Philippe Mathieu-Daudé 87e0331c5a docs: fix broken paths to docs/devel/tracing.txt
With the move of some docs/ to docs/devel/ on ac06724a71,
no references were updated.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-07-31 13:12:53 +03:00
Philippe Mathieu-Daudé b2caa3b82e net/eth: fix incorrect check of iov_to_buf() return value
So we have sizeof(struct in6_address) != sizeof(uintptr_t)
and Clang > Coverity on this, see 4555ca6816 :)

net/eth.c:426:30: warning: The code calls sizeof() on a pointer type. This can produce an unexpected result
        return bytes_read == sizeof(dst_addr);
                             ^     ~~~~~~~~~~
net/eth.c:475:34: warning: The code calls sizeof() on a pointer type. This can produce an unexpected result
            return bytes_read == sizeof(src_addr);
                                 ^     ~~~~~~~~~~

Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-07-31 13:06:38 +03:00
Zhang Chen 4b39bdced5 net/filter-rewriter.c: Make filter-rewriter support vnet_hdr_len
We add the vnet_hdr_support option for filter-rewriter, default is disabled.
If you use virtio-net-pci or other driver needs vnet_hdr, please enable it.
You can use it for example:
-object filter-rewriter,id=rew0,netdev=hn0,queue=all,vnet_hdr_support

We get the vnet_hdr_len from NetClientState that make us
parse net packet correctly.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:53 +08:00
Zhang Chen d63b366a26 net/colo-compare.c: Add vnet packet's tcp/udp/icmp compare
COLO-Proxy just focus on packet payload, so we skip vnet header.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:52 +08:00
Zhang Chen 5cc444d367 net/colo.c: Add vnet packet parse feature in colo-proxy
Make colo-compare and filter-rewriter can parse vnet packet.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:51 +08:00
Zhang Chen aa3a7032f7 net/colo-compare.c: Make colo-compare support vnet_hdr_len
We add the vnet_hdr_support option for colo-compare, default is disabled.
If you use virtio-net-pci or other driver needs vnet_hdr, please enable it.
You can use it for example:
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0,vnet_hdr_support

COLO-compare can get vnet header length from filter,
Add vnet_hdr_len to struct packet and output packet with
the vnet_hdr_len.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:50 +08:00
Zhang Chen 3037e7a5b7 net/colo-compare.c: Introduce parameter for compare_chr_send()
This patch change the compare_chr_send() parameter from CharBackend to CompareState,
we can get more information like vnet_hdr(We use it to support packet with vnet_header).

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:49 +08:00
Zhang Chen ada1a33f9a net/colo.c: Make vnet_hdr_len as packet property
We can use this property flush and send packet with vnet_hdr_len.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:48 +08:00
Zhang Chen 00d5c2406b net/filter-mirror.c: Add new option to enable vnet support for filter-redirector
We add the vnet_hdr_support option for filter-redirector, default is disabled.
If you use virtio-net-pci net driver or other driver needs vnet_hdr, please enable it.
Because colo-compare or other modules needs the vnet_hdr_len to parse
packet, we add this new option send the len to others.
You can use it for example:
-object filter-redirector,id=r0,netdev=hn0,queue=tx,outdev=red0,vnet_hdr_support

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:47 +08:00
Zhang Chen e2521f0e03 net/filter-mirror.c: Make filter mirror support vnet support.
We add the vnet_hdr_support option for filter-mirror, default is disabled.
If you use virtio-net-pci or other driver needs vnet_hdr, please enable it.
You can use it for example:
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0,vnet_hdr_support

If it has vnet_hdr_support flag, we will change the sending packet format from
struct {int size; const uint8_t buf[];} to {int size; int vnet_hdr_len; const uint8_t buf[];}.
make other module(like colo-compare) know how to parse net packet correctly.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:13:45 +08:00
Zhang Chen dc3c5ac645 net/filter-mirror.c: Introduce parameter for filter_send()
This patch change the filter_send() parameter from CharBackend to MirrorState,
we can get more information like vnet_hdr(We use it to support packet with vnet_header).

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:02:11 +08:00
Zhang Chen 3cde5ea211 net/net.c: Add vnet_hdr support in SocketReadState
We add a flag to decide whether net_fill_rstate() need read
the vnet_hdr_len or not.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:02:11 +08:00
Zhang Chen d6b732e953 net: Add vnet_hdr_len arguments in NetClientState
Add vnet_hdr_len arguments in NetClientState
that make other module get real vnet_hdr_len easily.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-07-17 20:02:09 +08:00
Peter Maydell 6c6076662d * gdbstub fixes (Alex)
* IOMMU MemoryRegion subclass (Alexey)
 * Chardev hotswap (Anton)
 * NBD_OPT_GO support (Eric)
 * Misc bugfixes
 * DEFINE_PROP_LINK (minus the ARM patches - Fam)
 * MAINTAINERS updates (Philippe)
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 Version: GnuPG v2.0.22 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* gdbstub fixes (Alex)
* IOMMU MemoryRegion subclass (Alexey)
* Chardev hotswap (Anton)
* NBD_OPT_GO support (Eric)
* Misc bugfixes
* DEFINE_PROP_LINK (minus the ARM patches - Fam)
* MAINTAINERS updates (Philippe)

# gpg: Signature made Fri 14 Jul 2017 11:06:27 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (55 commits)
  spapr_rng: Convert to DEFINE_PROP_LINK
  cpu: Convert to DEFINE_PROP_LINK
  mips_cmgcr: Convert to DEFINE_PROP_LINK
  ivshmem: Convert to DEFINE_PROP_LINK
  dimm: Convert to DEFINE_PROP_LINK
  virtio-crypto: Convert to DEFINE_PROP_LINK
  virtio-rng: Convert to DEFINE_PROP_LINK
  virtio-scsi: Convert to DEFINE_PROP_LINK
  virtio-blk: Convert to DEFINE_PROP_LINK
  qdev: Add const qualifier to PropertyInfo definitions
  qmp: Use ObjectProperty.type if present
  qdev: Introduce DEFINE_PROP_LINK
  qdev: Introduce PropertyInfo.create
  qom: enforce readonly nature of link's check callback
  translate-all: remove redundant !tcg_enabled check in dump_exec_info
  vl: fix breakage of -tb-size
  nbd: Implement NBD_INFO_BLOCK_SIZE on client
  nbd: Implement NBD_INFO_BLOCK_SIZE on server
  nbd: Implement NBD_OPT_GO on client
  nbd: Implement NBD_OPT_GO on server
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-14 12:16:09 +01:00
Anton Nefedov 3065070153 char: avoid chardevice direct access
frontends should avoid accessing CharDriver struct where possible

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1499342940-56739-6-git-send-email-anton.nefedov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14 11:04:33 +02:00
Anton Nefedov 81517ba37a char: add backend hotswap handler
Frontends should have an interface to setup the handler of a backend change.
The interface will be used in the next commits

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1499342940-56739-3-git-send-email-anton.nefedov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14 11:04:33 +02:00
Alistair Francis 3dc6f86936 Convert error_report() to warn_report()
Convert all uses of error_report("warning:"... to use warn_report()
instead. This helps standardise on a single method of printing warnings
to the user.

All of the warnings were changed using these two commands:
    find ./* -type f -exec sed -i \
      's|error_report(".*warning[,:] |warn_report("|Ig' {} +

Indentation fixed up manually afterwards.

The test-qdev-global-props test case was manually updated to ensure that
this patch passes make check (as the test cases are case sensitive).

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Cc: Jeff Cody <jcody@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Lieven <pl@kamp.de>
Cc: Josh Durgin <jdurgin@redhat.com>
Cc: "Richard W.M. Jones" <rjones@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Greg Kurz <groug@kaod.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Peter Chubb <peter.chubb@nicta.com.au>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Alexander Graf <agraf@suse.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Greg Kurz <groug@kaod.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed by: Peter Chubb <peter.chubb@data61.csiro.au>
Acked-by: Max Reitz <mreitz@redhat.com>
Acked-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <e1cfa2cd47087c248dd24caca9c33d9af0c499b0.1499866456.git.alistair.francis@xilinx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-07-13 13:49:58 +02:00
Marc-André Lureau 1e507bb0fd object: use more specific property type names
Use the actual unsigned integer type name.

The type name change impacts the following externally visible area:

* vl.c's machine_help_func() puts it in help for -machine NAME,help.

* QMP command qom-list exposes it in ObjectPropertyInfo member @type.

* QMP command device-list-properties exposes it in DevicePropertyInfo
  member @type.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170607163635.17635-15-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-20 14:31:32 +02:00
Daniel P. Berrange 6701e5514b Revert "Change net/socket.c to use socket_*() functions" again
This reverts commit 883e4f7624.

This code changed net/socket.c from using socket()+connect(),
to using socket_connect(). In theory this is great, but in
practice this has completely broken the ability to connect
the frontend and backend:

  $ ./x86_64-softmmu/qemu-system-x86_64 \
       -device e1000,id=e0,netdev=hn0,mac=DE:AD:BE:EF:AF:05 \
       -netdev socket,id=hn0,connect=localhost:1234
  qemu-system-x86_64: -device e1000,id=e0,netdev=hn0,mac=DE:AD:BE:EF:AF:05: Property 'e1000.netdev' can't find value 'hn0'

The old code would call net_socket_fd_init() synchronously,
while letting the connect() complete in the backgorund. The
new code moved net_socket_fd_init() so that it is only called
after connect() completes in the background.

Thus at the time we initialize the NIC frontend, the backend
does not exist.

The socket_connect() conversion as done is a bad fit for the
current code, since it did not try to change the way it deals
with async connection completion. Rather than try to fix this,
just revert the socket_connect() conversion entirely.

The code is about to be converted to use QIOChannel which
will let the problem be solved in a cleaner manner. This
revert is more suitable for stable branches in the meantime.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-06-07 10:58:31 +08:00
Marc-André Lureau 1ce2610c10 char: make chr_fe_deinit() optionaly delete backend
This simplifies removing a backend for a frontend user (no need to
retrieve the associated driver and separate delete call etc).

NB: many frontends have questionable handling of ending a chardev. They
should probably delete the backend to prevent broken reusage.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02 11:33:53 +04:00
Marc-André Lureau 4d43a603c7 char: move CharBackend handling in char-fe unit
Move all the frontend struct and methods to a seperate unit. This avoids
accidentally mixing backend and frontend calls, and helps with readabilty.

Make qemu_chr_replay() a macro shared by both char and char-fe.

Export qemu_chr_write(), and use a macro for qemu_chr_write_all()

(nb: yes, CharBackend is for char frontend :)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02 11:33:53 +04:00
Marc-André Lureau 8228e353d8 chardev: move headers to include/chardev
So they are all in one place. The following patch will move serial &
parallel declarations to the respective headers.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02 11:33:52 +04:00
Zhang Chen e05dc4cf56 net/filter-mirror.c: Rename filter_mirror_send() and fix codestyle
Because filter_mirror_receive_iov() and filter_redirector_receive_iov()
both use the filter_mirror_send() to send packet, so I change
filter_mirror_send() to filter_send() that looks more common.
And fix some codestyle.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23 10:10:38 +08:00
Zhang Chen e2f8401638 net/filter-mirror.c: Remove duplicate check code.
The s->outdev have checked in filter_mirror_set_outdev().

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23 10:10:38 +08:00
Thomas Huth 559964a1ad hmp / net: Mark host_net_add/remove as deprecated
The netdev_add and netdev_del commands should be used nowadays instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23 10:10:38 +08:00
Zhang Chen f583dca9ad COLO-compare: Improve tcp compare trace event readability
Because of previous patch's trace arguments over the limit
of UST backend, so I rewrite the patch.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23 10:10:38 +08:00
Thomas Huth f5ab20a468 net/dump: Issue a warning for the deprecated "-net dump"
Network dumping should be done with "-object filter-dump" nowadays.
Using "-net dump" via the VLAN mechanism is considered as deprecated
and might be removed in a future release. So warn the users now
to inform them to user the filter-dump method instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23 10:10:38 +08:00
Thomas Huth 4348300e75 net/tap: Replace tap-haiku.c and tap-aix.c by a generic tap-stub.c
The files tap-haiku.c and tap-aix.c are identical (except one line
of error message). We should avoid such code duplication, so replace
these by a generic tap-stub.c file instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23 10:10:38 +08:00
Marc-André Lureau 2f5d45a150 char: add a /chardevs container
Add a /chardevs container object to hold the list of chardevs.
(Note: QTAILQ chardevs is going away in the following commits)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-04 15:34:41 +04:00
Dr. David Alan Gilbert f95cc8b6cc slirp/smb: Replace constant strings by glib string
gcc 7 (on fedora 26) objects to many of the snprintf's
in the smb path and command creation because it can't
figure out that the smb_dir (i.e. the /tmp dir for the configuration)
is known to be short.

Replace all these fixed length buffers by g_str* functions that dynamically
allocate and use g_dir_make_tmp to make the directory.
(It's fairly new glib but we have a compat function for it).

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2017-04-29 18:29:58 +02:00
Vincent Bernat 0bed71edbc slirp: allow host port 0 for hostfwd
The OS will allocate automatically a free port. This is useful if you
want to be sure to not get any port conflict. You still have to figure
out which port you got, for example with "lsof" (this could be exposed
in the monitor if needed).

Example of use:

     $ qemu-system-x86_64 -net user,hostfwd=127.0.0.1:0-:22 ...

Then, get your port with:

     $ lsof -np 1474 | grep LISTEN
     qemu-syst 31777 bernat 12u IPv4 [...] TCP 127.0.0.1:35145 (LISTEN)

Signed-off-by: Vincent Bernat <vincent@bernat.im>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2017-04-29 18:29:58 +02:00
Peter Maydell 51b9d495f2 Revert "COLO-compare: Optimize tcp compare trace event"
This reverts commit 0fc8aec7de.

In commit 2dfe5113b1 we split a trace event with a lot of arguments
in two, because the UST trace backend has a limit on the number
of arguments you can have in a single trace event. Unfortunately
we subsequently forgot about this, and in commit 0fc8aec7de
we merged the two trace events again, recreating the "UST backend
doesn't build" bug.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-04-26 16:19:27 +01:00
Peter Maydell b8c7193fe9 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Tue 25 Apr 2017 12:22:03 BST
# gpg:                using RSA key 0xEF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  COLO-compare: Optimize tcp compare trace event
  COLO-compare: Optimize tcp compare for option field
  slirp: add a fake NC-SI backend
  aspeed: add a FTGMAC100 nic
  net/ftgmac100: add a 'aspeed' property
  net: add FTGMAC100 support
  hw/net: add MII definitions
  colo-compare: Fix old packet check bug.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-04-25 14:14:17 +01:00
Zhang Chen 0fc8aec7de COLO-compare: Optimize tcp compare trace event
Optimize two trace events as one, adjust print format make
it easy to read. rename trace_colo_compare_pkt_info_src/dst
to trace_colo_compare_tcp_info.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-04-25 19:17:25 +08:00
Zhang Chen 184d4d4203 COLO-compare: Optimize tcp compare for option field
In this patch we support packet that have tcp options field.
Add tcp options field check, If the packet have options
field we just skip it and compare tcp payload,
Avoid unnecessary checkpoint, optimize performance.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-04-25 19:17:25 +08:00
Fam Zheng 226799cec5 socket: Make errp the last parameter of socket_connect
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170421122710.15373-2-famz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-24 09:12:59 +02:00
Zhang Chen d25a7dabf2 colo-compare: Fix old packet check bug.
If colo-compare find one old packet,we can notify colo-frame
do checkpoint, no need continue find more old packet here.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-04-24 11:30:03 +08:00
Zhang Chen e630b2bf7c COLO-compare: Fix trace_event print bug
Because of inet_ntoa() return a statically allocated buffer,
subsequent calls will overwrite, So we fix this bug.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-14 15:39:55 +08:00
Zhang Chen f0aabd5c4a net/filter-mirror: Follow CODING_STYLE
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 1723a7f7cf COLO-compare: Fix icmp and udp compare different packet always dump bug
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 6efeb3286d COLO-compare: Optimize compare_common and compare_tcp
Add offset args for colo_packet_compare_common, optimize
colo_packet_compare_icmp() and colo_packet_compare_udp()
just compare the IP payload. Before compare all tcp packet,
we compare tcp checksum firstly, this function can get
better performance.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 2ad7ca4c81 COLO-compare: Rename compare function and remove duplicate codes
Rename colo_packet_compare() to colo_packet_compare_common() that
make tcp_compare udp_compare icmp_compare reuse this function.
Remove minimum packet size check in icmp_compare, because we have
check this in parse_packet_early().

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang db0a762e4b filter-rewriter: skip net_checksum_calculate() while offset = 0
While the offset of packets's sequence for primary side and
secondary side is zero, it is unnecessary to call net_checksum_calculate()
to recalculate the checksume value of packets.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang 0e79668e1f net/colo: fix memory double free error
The 'primary_list' and 'secondary_list' members of struct Connection
is not allocated through dynamically g_queue_new(), but we free it by using
g_queue_free(), which will lead to a double-free bug.

Reviewed-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 727c2d764f net/colo-compare: Fix memory free error
We use g_queue_init() to init s->conn_list, so we should use g_queue_clear()
to instead of g_queue_free().

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang b43decb015 colo-compare: Fix removing fds been watched incorrectly in finalization
We will catch the bellow error report while try to delete compare object
by qmp command:
chardev/char-io.c:91: io_watch_poll_finalize: Assertion `iwp->src == ((void *)0)' failed.

This is caused by failing to remove the right fd been watched while
call qemu_chr_fe_set_handlers();

Fix it by pass the worker_context parameter to qemu_chr_fe_set_handlers().

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00