OpenE2K/qemu-e2k
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0dacea92d2
qemu-e2k/hw/net
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Ed Swierk 0dacea92d2 net: Transmit zero UDP checksum as 0xFFFF 
The checksum algorithm used by IPv4, TCP and UDP allows a zero value
to be represented by either 0x0000 and 0xFFFF. But per RFC 768, a zero
UDP checksum must be transmitted as 0xFFFF because 0x0000 is a special
value meaning no checksum.

Substitute 0xFFFF whenever a checksum is computed as zero when
modifying a UDP datagram header. Doing this on IPv4 and TCP checksums
is unnecessary but legal. Add a wrapper for net_checksum_finish() that
makes the substitution.

(We can't just change net_checksum_finish(), as that function is also
used by receivers to verify checksums, and in that case the expected
value is always 0x0000.)

Signed-off-by: Ed Swierk <eswierk@skyportsystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-11-20 11:08:00 +08:00
..
fsl_etsec sysbus: Set user_creatable=false by default on TYPE_SYS_BUS_DEVICE 2017-05-17 10:37:01 -03:00
rocker pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
allwinner_emac.c
cadence_gem.c cadence_gem: Make the revision a property 2017-04-20 17:39:17 +01:00
dp8393x.c memory: Rename memory_region_init_ram() to memory_region_init_ram_nomigrate() 2017-07-14 17:59:42 +01:00
e1000_regs.h e1000: Rename the SEC symbol to SEQEC 2017-09-08 08:17:37 +08:00
e1000.c net: Transmit zero UDP checksum as 0xFFFF 2017-11-20 11:08:00 +08:00
e1000e_core.c e1000: Rename the SEC symbol to SEQEC 2017-09-08 08:17:37 +08:00
e1000e_core.h e1000e: Flush all receive queues on receive enable 2016-09-27 17:54:22 +08:00
e1000e.c pci: Add INTERFACE_PCIE_DEVICE to all PCIe devices 2017-10-15 05:54:42 +03:00
e1000x_common.c
e1000x_common.h e1000: Rename the SEC symbol to SEQEC 2017-09-08 08:17:37 +08:00
eepro100.c hw/net/eepro100: Fix endianness problem on big endian hosts 2017-11-20 11:08:00 +08:00
etraxfs_eth.c qdev: Replace cannot_instantiate_with_device_add_yet with !user_creatable 2017-05-17 10:37:00 -03:00
ftgmac100.c net/ftgmac100: add a 'aspeed' property 2017-04-25 19:17:25 +08:00
imx_fec.c net: imx: limit buffer descriptor count 2017-02-15 11:18:57 +08:00
lan9118.c
lance.c lance: move TYPE_LANCE and SysBusPCNetState from lance.c to lance.h 2017-10-31 17:25:36 +00:00
Makefile.objs net: add Sun HME (Happy Meal Ethernet) on-board NIC 2017-09-21 08:38:42 +01:00
mcf_fec.c hw/net: implement MIB counters in mcf_fec driver 2017-03-14 15:39:55 +08:00
milkymist-minimac2.c memory: Rename memory_region_init_ram() to memory_region_init_ram_nomigrate() 2017-07-14 17:59:42 +01:00
mipsnet.c
ne2000-isa.c
ne2000.c pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
ne2000.h
net_rx_pkt.c net: Transmit zero UDP checksum as 0xFFFF 2017-11-20 11:08:00 +08:00
net_rx_pkt.h
net_tx_pkt.c net: Transmit zero UDP checksum as 0xFFFF 2017-11-20 11:08:00 +08:00
net_tx_pkt.h
opencores_eth.c
pcnet-pci.c pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
pcnet.c net: pcnet: fix source formatting and indentation 2016-10-26 09:57:59 +08:00
pcnet.h
rtl8139.c pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
smc91c111.c
spapr_llan.c hw/net/spapr_llan: 6 byte mac address device tree entry 2017-02-22 14:28:53 +11:00
stellaris_enet.c arm: stellaris: make MII accesses complete immediately 2017-01-27 15:29:08 +00:00
sungem.c pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
sunhme.c pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
trace-events net: add Sun HME (Happy Meal Ethernet) on-board NIC 2017-09-21 08:38:42 +01:00
vhost_net.c spec/vhost-user spec: Add IOMMU support 2017-06-02 18:57:17 +03:00
virtio-net.c migration: pre_save return int 2017-09-27 11:35:59 +01:00
vmware_utils.h
vmxnet3.c net: Transmit zero UDP checksum as 0xFFFF 2017-11-20 11:08:00 +08:00
vmxnet3.h
vmxnet_debug.h
xen_nic.c xen: Rename xen_be_send_notify 2016-10-28 17:54:21 -07:00
xgmac.c Remove/replace sysemu/char.h inclusion 2017-06-02 11:33:52 +04:00
xilinx_axienet.c xilinx_axienet: Convert to DEFINE_PROP_LINK 2017-09-07 13:54:51 +01:00
xilinx_ethlite.c