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qemu/slirp
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Daniel P. Berrange 6ab3fc32ea hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all 
The qemu_chr_fe_write method will return -1 on EAGAIN if the
chardev backend write would block. Almost no callers of the
qemu_chr_fe_write() method check the return value, instead
blindly assuming data was successfully sent. In most cases
this will lead to silent data loss on interactive consoles,
but in some cases (eg RNG EGD) it'll just cause corruption
of the protocol being spoken.

We unfortunately can't fix the virtio-console code, due to
a bug in the Linux guest drivers, which would cause the
entire Linux kernel to hang if we delay processing of the
incoming data in any way. Fixing this requires first fixing
the guest driver to not hold spinlocks while writing to the
hvc device backend.

Fixes bug: https://bugs.launchpad.net/qemu/+bug/1586756

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1473170165-540-4-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13 19:09:42 +02:00
..
arp_table.c slirp: Clean up includes 2016-02-04 17:41:30 +00:00
bootp.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
bootp.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
cksum.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
COPYRIGHT Remove the advertising clause from the slirp license 2009-01-26 19:37:41 +00:00
debug.h slirp: Cleanup and basic reanimation of debug code 2009-06-29 08:52:46 -05:00
dhcpv6.c slirp: Add support for stateless DHCPv6 2016-07-03 23:59:42 +02:00
dhcpv6.h slirp: Add support for stateless DHCPv6 2016-07-03 23:59:42 +02:00
dnssearch.c slirp: Use DIV_ROUND_UP 2016-06-07 18:19:25 +03:00
if.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
if.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
ip6_icmp.c slirp: Add RDNSS advertisement 2016-07-03 23:31:12 +02:00
ip6_icmp.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
ip6_input.c slirp: Allow disabling IPv4 or IPv6 2016-04-01 17:51:55 +02:00
ip6_output.c slirp: Adding IPv6, ICMPv6 Echo and NDP autoconfiguration 2016-03-15 10:35:00 +01:00
ip6.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
ip_icmp.c slirp: fix guest network access with darwin host 2016-04-28 18:12:08 +01:00
ip_icmp.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
ip_input.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
ip_output.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
ip.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
libslirp.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
main.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
Makefile.objs slirp: Add support for stateless DHCPv6 2016-07-03 23:59:42 +02:00
mbuf.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
mbuf.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
misc.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
misc.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
ndp_table.c slirp: Adding IPv6, ICMPv6 Echo and NDP autoconfiguration 2016-03-15 10:35:00 +01:00
sbuf.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
sbuf.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
slirp_config.h slirp: Remove obsolete backward-compatibility cruft 2016-05-16 20:58:47 +02:00
slirp.c hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all 2016-09-13 19:09:42 +02:00
slirp.h slirp: Rename "struct arphdr" to "struct slirp_arphdr" 2016-08-16 12:17:36 +01:00
socket.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
socket.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
tcp_input.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
tcp_output.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
tcp_subr.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
tcp_timer.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
tcp_timer.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
tcp_var.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
tcp.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
tcpip.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
tftp.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
tftp.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
udp6.c slirp: Add support for stateless DHCPv6 2016-07-03 23:59:42 +02:00
udp.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
udp.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00