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  1. 10 6月, 2014 1 次提交
  3. 09 6月, 2014 1 次提交
  5. 25 4月, 2014 1 次提交
  7. 17 9月, 2013 4 次提交
  9. 23 8月, 2013 1 次提交
  11. 16 4月, 2013 1 次提交
  13. 22 2月, 2013 2 次提交
    • S
      slirp: switch to GPollFD · 8917c3bd
      由 Stefan Hajnoczi 提交于 
      Slirp uses rfds/wfds/xfds more extensively than other QEMU components.

The rarely-used out-of-band TCP data feature is used.  That means we
need the full table of select(2) to g_poll(3) events:

  rfds -> G_IO_IN | G_IO_HUP | G_IO_ERR
  wfds -> G_IO_OUT | G_IO_ERR
  xfds -> G_IO_PRI

I came up with this table by looking at Linux fs/select.c which maps
select(2) to poll(2) internally.

Another detail to watch out for are the global variables that reference
rfds/wfds/xfds during slirp_select_poll().  sofcantrcvmore() and
sofcantsendmore() use these globals to clear fd_set bits.  When
sofcantrcvmore() is called, the wfds bit is cleared so that the write
handler will no longer be run for this iteration of the event loop.

This actually seems buggy to me since TCP connections can be half-closed
and we'd still want to handle data in half-duplex fashion.  I think the
real intention is to avoid running the read/write handler when the
socket has been fully closed.  This is indicated with the SS_NOFDREF
state bit so we now check for it before invoking the TCP write handler.
Note that UDP/ICMP code paths don't care because they are
connectionless.

Note that slirp/ has a lot of tabs and sometimes mixed tabs with spaces.
I followed the style of the surrounding code.
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NLaszlo Ersek <lersek@redhat.com>
Message-id: 1361356113-11049-6-git-send-email-stefanha@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      8917c3bd
    • S
      slirp: slirp/slirp.c coding style cleanup · cf1d078e
      由 Stefan Hajnoczi 提交于 
      The slirp glue code uses tabs in some places.  Since the next patch will
modify the file, convert tabs to spaces and fix checkpatch.pl issues.
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NLaszlo Ersek <lersek@redhat.com>
Message-id: 1361356113-11049-5-git-send-email-stefanha@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      cf1d078e
  15. 30 1月, 2013 1 次提交
  17. 19 12月, 2012 2 次提交
  19. 15 11月, 2012 1 次提交
  21. 07 8月, 2012 1 次提交
  23. 04 8月, 2012 1 次提交
  25. 27 4月, 2012 1 次提交
  27. 13 3月, 2012 2 次提交
  29. 22 8月, 2011 1 次提交
  31. 21 8月, 2011 1 次提交
  33. 05 8月, 2011 1 次提交
  35. 03 8月, 2011 2 次提交
  37. 25 7月, 2011 1 次提交
    • B
      Wrap recv to avoid warnings · 00aa0040
      由 Blue Swirl 提交于 
      Avoid warnings like these by wrapping recv():
  CC    slirp/ip_icmp.o
/src/qemu/slirp/ip_icmp.c: In function 'icmp_receive':
/src/qemu/slirp/ip_icmp.c:418:5: error: passing argument 2 of 'recv' from incompatible pointer type [-Werror]
/usr/local/lib/gcc/i686-mingw32msvc/4.6.0/../../../../i686-mingw32msvc/include/winsock2.h:547:32: note: expected 'char *' but argument is of type 'struct icmp *'

Remove also casts used to avoid warnings.
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      00aa0040
  39. 23 7月, 2011 1 次提交
  41. 21 3月, 2011 1 次提交
    • P
      change all rt_clock references to use millisecond resolution accessors · 7bd427d8
      由 Paolo Bonzini 提交于 
      This was done with:

    sed -i '/get_clock\>.*rt_clock/s/get_clock\>/get_clock_ms/' \
        $(git grep -l 'get_clock\>.*rt_clock' )
    sed -i '/new_timer\>.*rt_clock/s/new_timer\>/new_timer_ms/' \
        $(git grep -l 'new_timer\>.*rt_clock' )

after checking that get_clock and new_timer never occur twice
on the same line.  There were no missed occurrences; however, even
if there had been, they would have been caught by the compiler.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      7bd427d8
  43. 17 9月, 2010 1 次提交
  45. 06 7月, 2010 1 次提交
  47. 07 3月, 2010 1 次提交
  49. 12 9月, 2009 1 次提交
    • B
      Fix sys-queue.h conflict for good · 72cf2d4f
      由 Blue Swirl 提交于 
      Problem: Our file sys-queue.h is a copy of the BSD file, but there are
some additions and it's not entirely compatible. Because of that, there have
been conflicts with system headers on BSD systems. Some hacks have been
introduced in the commits 15cc9235,
f40d7537,
96555a96 and
3990d09a but the fixes were fragile.

Solution: Avoid the conflict entirely by renaming the functions and the
file. Revert the previous hacks.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      72cf2d4f
  51. 05 9月, 2009 1 次提交
  53. 31 8月, 2009 1 次提交
    • S
      Fix compiler warnings · 9e3a95ef
      由 Stefan Weil 提交于 
      Starting with commit df7a86ed,
mingw32 builds result in a compiler warning for dns_addr:

  CC    slirp/slirp.o
/home/stefan/src/qemu/savannah/qemu/slirp/slirp.c:50: warning: missing braces around initializer
/home/stefan/src/qemu/savannah/qemu/slirp/slirp.c:50: warning: (near initialization for ‘dns_addr.S_un’)

Removing the assignment fixes the warning without the need of special code
for mingw32 (and also saves some bytes in the resulting binary).

To fix another potential compiler warning, the missing 'static'
attribute was added.

The same changes were applied to dns_addr_time.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      9e3a95ef
  55. 28 8月, 2009 2 次提交
    • E
      slirp: Read host DNS config on demand · df7a86ed
      由 Ed Swierk 提交于 
      Currently the qemu user-mode networking stack reads the host DNS
configuration (/etc/resolv.conf or the Windows equivalent) only once
when qemu starts.  This causes name lookups in the guest to fail if the
host is moved to a different network from which the original DNS servers
are unreachable, a common occurrence when the host is a laptop.

This patch changes the slirp code to read the host DNS configuration on
demand, caching the results for at most 1 second to avoid unnecessary
overhead if name lookups occur in rapid succession.  On non-Windows
hosts, /etc/resolv.conf is re-read only if the file has been replaced or
if its size or mtime has changed.
Signed-off-by: NEd Swierk <eswierk@aristanetworks.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      df7a86ed
    • E
      slirp: Remove our_addr code · ce0bd027
      由 Ed Swierk 提交于 
      Three problems with our_addr:

- It's determined only once when qemu starts, but the address can change
(just like the DNS configuration can).

- It's supposed to be the IP address of a host network interface, but
there's no guarantee that gethostbyname(gethostname()) actually does
that: the host might be a laptop that has only a loopback interface up,
or the hostname might be localhost.localdomain, etc.

- It's useless at best: get_dns_addr() calls it, there's no reason to
send DNS requests to a different IP address if you're running a DNS
server on the host and resolv.conf points to 127.0.0.1.

These problems are easily solved by removing the code.
Signed-off-by: NEd Swierk <eswierk@aristanetworks.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      ce0bd027
  57. 01 8月, 2009 1 次提交
  59. 28 7月, 2009 2 次提交
  61. 29 6月, 2009 1 次提交