Gecko [ nrupathungauniversityblr.ac.in ]

Name	Size	Permission
android	[ DIR ]	drwxr-xr-x
byteorder	[ DIR ]	drwxr-xr-x
caif	[ DIR ]	drwxr-xr-x
can	[ DIR ]	drwxr-xr-x
cifs	[ DIR ]	drwxr-xr-x
dvb	[ DIR ]	drwxr-xr-x
genwqe	[ DIR ]	drwxr-xr-x
hdlc	[ DIR ]	drwxr-xr-x
hsi	[ DIR ]	drwxr-xr-x
iio	[ DIR ]	drwxr-xr-x
isdn	[ DIR ]	drwxr-xr-x
mmc	[ DIR ]	drwxr-xr-x
netfilter	[ DIR ]	drwxr-xr-x
netfilter_arp	[ DIR ]	drwxr-xr-x
netfilter_bridge	[ DIR ]	drwxr-xr-x
netfilter_ipv4	[ DIR ]	drwxr-xr-x
netfilter_ipv6	[ DIR ]	drwxr-xr-x
nfsd	[ DIR ]	drwxr-xr-x
raid	[ DIR ]	drwxr-xr-x
sched	[ DIR ]	drwxr-xr-x
spi	[ DIR ]	drwxr-xr-x
sunrpc	[ DIR ]	drwxr-xr-x
tc_act	[ DIR ]	drwxr-xr-x
tc_ematch	[ DIR ]	drwxr-xr-x
usb	[ DIR ]	drwxr-xr-x
wimax	[ DIR ]	drwxr-xr-x
a.out.h	6.73 KB	-rw-r--r--
acct.h	3.65 KB	-rw-r--r--
adb.h	1.11 KB	-rw-r--r--
adfs_fs.h	936 B	-rw-r--r--
affs_hardblocks.h	1.51 KB	-rw-r--r--
agpgart.h	3.85 KB	-rw-r--r--
aio_abi.h	3.2 KB	-rw-r--r--
am437x-vpfe.h	3.59 KB	-rw-r--r--
apm_bios.h	3.6 KB	-rw-r--r--
arcfb.h	213 B	-rw-r--r--
arm_sdei.h	2.69 KB	-rw-r--r--
aspeed-lpc-ctrl.h	1.74 KB	-rw-r--r--
atalk.h	1023 B	-rw-r--r--
atm.h	7.7 KB	-rw-r--r--
atm_eni.h	648 B	-rw-r--r--
atm_he.h	406 B	-rw-r--r--
atm_idt77105.h	955 B	-rw-r--r--
atm_nicstar.h	1.25 KB	-rw-r--r--
atm_tcp.h	1.58 KB	-rw-r--r--
atm_zatm.h	1.5 KB	-rw-r--r--
atmapi.h	952 B	-rw-r--r--
atmarp.h	1.27 KB	-rw-r--r--
atmbr2684.h	3.19 KB	-rw-r--r--
atmclip.h	576 B	-rw-r--r--
atmdev.h	7.5 KB	-rw-r--r--
atmioc.h	1.61 KB	-rw-r--r--
atmlec.h	2.33 KB	-rw-r--r--
atmmpc.h	4.13 KB	-rw-r--r--
atmppp.h	639 B	-rw-r--r--
atmsap.h	4.85 KB	-rw-r--r--
atmsvc.h	1.81 KB	-rw-r--r--
audit.h	19.09 KB	-rw-r--r--
aufs_type.h	11.1 KB	-rw-r--r--
auto_dev-ioctl.h	4.87 KB	-rw-r--r--
auto_fs.h	2.6 KB	-rw-r--r--
auto_fs4.h	4.17 KB	-rw-r--r--
auxvec.h	1.46 KB	-rw-r--r--
ax25.h	2.76 KB	-rw-r--r--
b1lli.h	1.68 KB	-rw-r--r--
batman_adv.h	9.23 KB	-rw-r--r--
baycom.h	883 B	-rw-r--r--
bcache.h	8.17 KB	-rw-r--r--
bcm933xx_hcs.h	419 B	-rw-r--r--
bfs_fs.h	1.85 KB	-rw-r--r--
binfmts.h	628 B	-rw-r--r--
blkpg.h	1.6 KB	-rw-r--r--
blktrace_api.h	4.59 KB	-rw-r--r--
blkzoned.h	5.05 KB	-rw-r--r--
bpf.h	30.32 KB	-rw-r--r--
bpf_common.h	1.26 KB	-rw-r--r--
bpf_perf_event.h	516 B	-rw-r--r--
bpqether.h	981 B	-rw-r--r--
bsg.h	2.44 KB	-rw-r--r--
bt-bmc.h	572 B	-rw-r--r--
btrfs.h	25.75 KB	-rw-r--r--
btrfs_tree.h	24.64 KB	-rw-r--r--
can.h	7.7 KB	-rw-r--r--
capability.h	11.5 KB	-rw-r--r--
capi.h	3.05 KB	-rw-r--r--
cciss_defs.h	3.2 KB	-rw-r--r--
cciss_ioctl.h	2.7 KB	-rw-r--r--
cdrom.h	28.18 KB	-rw-r--r--
cec-funcs.h	53.82 KB	-rw-r--r--
cec.h	36.77 KB	-rw-r--r--
cgroupstats.h	2.17 KB	-rw-r--r--
chio.h	5.22 KB	-rw-r--r--
cm4000_cs.h	1.76 KB	-rw-r--r--
cn_proc.h	3.26 KB	-rw-r--r--
coda.h	17.09 KB	-rw-r--r--
coda_psdev.h	360 B	-rw-r--r--
coff.h	12.18 KB	-rw-r--r--
connector.h	2.2 KB	-rw-r--r--
const.h	993 B	-rw-r--r--
coresight-stm.h	706 B	-rw-r--r--
cramfs_fs.h	3.47 KB	-rw-r--r--
cryptouser.h	3.31 KB	-rw-r--r--
cuda.h	905 B	-rw-r--r--
cyclades.h	16.71 KB	-rw-r--r--
cycx_cfm.h	2.92 KB	-rw-r--r--
dcbnl.h	24.37 KB	-rw-r--r--
dccp.h	6.29 KB	-rw-r--r--
devlink.h	7.15 KB	-rw-r--r--
dlm.h	2.49 KB	-rw-r--r--
dlm_device.h	2.48 KB	-rw-r--r--
dlm_netlink.h	1.13 KB	-rw-r--r--
dlm_plock.h	894 B	-rw-r--r--
dlmconstants.h	4.96 KB	-rw-r--r--
dm-ioctl.h	10.62 KB	-rw-r--r--
dm-log-userspace.h	14.83 KB	-rw-r--r--
dma-buf.h	1.33 KB	-rw-r--r--
dn.h	4.53 KB	-rw-r--r--
dqblk_xfs.h	8.79 KB	-rw-r--r--
edd.h	5.47 KB	-rw-r--r--
efs_fs_sb.h	2.17 KB	-rw-r--r--
elf-em.h	2.14 KB	-rw-r--r--
elf-fdpic.h	1.1 KB	-rw-r--r--
elf.h	12.99 KB	-rw-r--r--
elfcore.h	2.92 KB	-rw-r--r--
errno.h	23 B	-rw-r--r--
errqueue.h	1.34 KB	-rw-r--r--
ethtool.h	69.81 KB	-rw-r--r--
eventpoll.h	2.48 KB	-rw-r--r--
fadvise.h	842 B	-rw-r--r--
falloc.h	3.5 KB	-rw-r--r--
fanotify.h	3.59 KB	-rw-r--r--
fb.h	16.06 KB	-rw-r--r--
fcntl.h	3.22 KB	-rw-r--r--
fd.h	11.4 KB	-rw-r--r--
fdreg.h	5.29 KB	-rw-r--r--
fib_rules.h	1.79 KB	-rw-r--r--
fiemap.h	2.71 KB	-rw-r--r--
filter.h	2.16 KB	-rw-r--r--
firewire-cdev.h	42.86 KB	-rw-r--r--
firewire-constants.h	3.16 KB	-rw-r--r--
flat.h	2.1 KB	-rw-r--r--
fou.h	694 B	-rw-r--r--
fs.h	14.47 KB	-rw-r--r--
fsl_hypervisor.h	7.13 KB	-rw-r--r--
fsmap.h	4.29 KB	-rw-r--r--
fuse.h	17.06 KB	-rw-r--r--
futex.h	4.88 KB	-rw-r--r--
gameport.h	897 B	-rw-r--r--
gen_stats.h	1.54 KB	-rw-r--r--
genetlink.h	1.88 KB	-rw-r--r--
gfs2_ondisk.h	12.07 KB	-rw-r--r--
gigaset_dev.h	1.41 KB	-rw-r--r--
gpio.h	5.62 KB	-rw-r--r--
gsmmux.h	1.02 KB	-rw-r--r--
gtp.h	681 B	-rw-r--r--
hash_info.h	921 B	-rw-r--r--
hdlc.h	637 B	-rw-r--r--
hdlcdrv.h	2.84 KB	-rw-r--r--
hdreg.h	22.17 KB	-rw-r--r--
hid.h	1.86 KB	-rw-r--r--
hiddev.h	6.2 KB	-rw-r--r--
hidraw.h	1.48 KB	-rw-r--r--
hpet.h	743 B	-rw-r--r--
hsr_netlink.h	1.06 KB	-rw-r--r--
hw_breakpoint.h	742 B	-rw-r--r--
hyperv.h	10.32 KB	-rw-r--r--
hysdn_if.h	1.35 KB	-rw-r--r--
i2c-dev.h	2.55 KB	-rw-r--r--
i2c.h	6.96 KB	-rw-r--r--
i2o-dev.h	11.28 KB	-rw-r--r--
i8k.h	1.49 KB	-rw-r--r--
icmp.h	2.91 KB	-rw-r--r--
icmpv6.h	3.88 KB	-rw-r--r--
if.h	10.56 KB	-rw-r--r--
if_addr.h	1.76 KB	-rw-r--r--
if_addrlabel.h	721 B	-rw-r--r--
if_alg.h	1.5 KB	-rw-r--r--
if_arcnet.h	3.63 KB	-rw-r--r--
if_arp.h	6.42 KB	-rw-r--r--
if_bonding.h	4.17 KB	-rw-r--r--
if_bridge.h	6.55 KB	-rw-r--r--
if_cablemodem.h	986 B	-rw-r--r--
if_eql.h	1.32 KB	-rw-r--r--
if_ether.h	7.75 KB	-rw-r--r--
if_fc.h	1.7 KB	-rw-r--r--
if_fddi.h	3.66 KB	-rw-r--r--
if_frad.h	2.95 KB	-rw-r--r--
if_hippi.h	4.14 KB	-rw-r--r--
if_infiniband.h	1.22 KB	-rw-r--r--
if_link.h	21.44 KB	-rw-r--r--
if_ltalk.h	210 B	-rw-r--r--
if_macsec.h	5.48 KB	-rw-r--r--
if_packet.h	7.73 KB	-rw-r--r--
if_phonet.h	424 B	-rw-r--r--
if_plip.h	660 B	-rw-r--r--
if_ppp.h	29 B	-rw-r--r--
if_pppol2tp.h	3.21 KB	-rw-r--r--
if_pppox.h	4.76 KB	-rw-r--r--
if_slip.h	872 B	-rw-r--r--
if_team.h	2.54 KB	-rw-r--r--
if_tun.h	3.88 KB	-rw-r--r--
if_tunnel.h	3.91 KB	-rw-r--r--
if_vlan.h	1.75 KB	-rw-r--r--
if_x25.h	881 B	-rw-r--r--
ife.h	351 B	-rw-r--r--
igmp.h	2.94 KB	-rw-r--r--
ila.h	1.2 KB	-rw-r--r--
in.h	9.6 KB	-rw-r--r--
in6.h	7.26 KB	-rw-r--r--
in_route.h	936 B	-rw-r--r--
inet_diag.h	4.23 KB	-rw-r--r--
inotify.h	2.91 KB	-rw-r--r--
input-event-codes.h	24.11 KB	-rw-r--r--
input.h	15.09 KB	-rw-r--r--
ioctl.h	163 B	-rw-r--r--
ip.h	4.59 KB	-rw-r--r--
ip6_tunnel.h	1.91 KB	-rw-r--r--
ip_vs.h	13.31 KB	-rw-r--r--
ipc.h	2.05 KB	-rw-r--r--
ipmi.h	15.86 KB	-rw-r--r--
ipmi_msgdefs.h	4.43 KB	-rw-r--r--
ipsec.h	947 B	-rw-r--r--
ipv6.h	3.87 KB	-rw-r--r--
ipv6_route.h	1.86 KB	-rw-r--r--
ipx.h	2.29 KB	-rw-r--r--
irda.h	7.38 KB	-rw-r--r--
irqnr.h	104 B	-rw-r--r--
isdn.h	5.64 KB	-rw-r--r--
isdn_divertif.h	1.17 KB	-rw-r--r--
isdn_ppp.h	1.88 KB	-rw-r--r--
isdnif.h	2.31 KB	-rw-r--r--
iso_fs.h	6.33 KB	-rw-r--r--
ivtv.h	2.95 KB	-rw-r--r--
ivtvfb.h	1.18 KB	-rw-r--r--
ixjuser.h	24.59 KB	-rw-r--r--
jffs2.h	6.85 KB	-rw-r--r--
joystick.h	3.56 KB	-rw-r--r--
kcm.h	822 B	-rw-r--r--
kcmp.h	522 B	-rw-r--r--
kcov.h	1.07 KB	-rw-r--r--
kd.h	6.14 KB	-rw-r--r--
kdev_t.h	383 B	-rw-r--r--
kernel-page-flags.h	877 B	-rw-r--r--
kernel.h	194 B	-rw-r--r--
kernelcapi.h	1019 B	-rw-r--r--
kexec.h	1.79 KB	-rw-r--r--
keyboard.h	12.48 KB	-rw-r--r--
keyctl.h	3.47 KB	-rw-r--r--
kfd_ioctl.h	9.37 KB	-rw-r--r--
kvm.h	40.18 KB	-rw-r--r--
kvm_para.h	882 B	-rw-r--r--
l2tp.h	5.5 KB	-rw-r--r--
libc-compat.h	8.09 KB	-rw-r--r--
lightnvm.h	4.76 KB	-rw-r--r--
limits.h	937 B	-rw-r--r--
lirc.h	4.94 KB	-rw-r--r--
llc.h	3.09 KB	-rw-r--r--
loop.h	2.46 KB	-rw-r--r--
lp.h	3.78 KB	-rw-r--r--
lwtunnel.h	1.24 KB	-rw-r--r--
magic.h	3.32 KB	-rw-r--r--
major.h	4.6 KB	-rw-r--r--
map_to_7segment.h	7.08 KB	-rw-r--r--
matroxfb.h	1.43 KB	-rw-r--r--
max2175.h	1.01 KB	-rw-r--r--
mdio.h	13.8 KB	-rw-r--r--
media-bus-format.h	6.26 KB	-rw-r--r--
media.h	12.24 KB	-rw-r--r--
mei.h	4.7 KB	-rw-r--r--
membarrier.h	4.12 KB	-rw-r--r--
memfd.h	1.2 KB	-rw-r--r--
mempolicy.h	2.1 KB	-rw-r--r--
meye.h	2.47 KB	-rw-r--r--
mic_common.h	6.37 KB	-rw-r--r--
mic_ioctl.h	2.2 KB	-rw-r--r--
mii.h	7.89 KB	-rw-r--r--
minix_fs.h	2.07 KB	-rw-r--r--
mman.h	1.21 KB	-rw-r--r--
mmtimer.h	2.07 KB	-rw-r--r--
module.h	255 B	-rw-r--r--
mpls.h	2.25 KB	-rw-r--r--
mpls_iptunnel.h	761 B	-rw-r--r--
mqueue.h	2.15 KB	-rw-r--r--
mroute.h	5.3 KB	-rw-r--r--
mroute6.h	4.47 KB	-rw-r--r--
msdos_fs.h	6.8 KB	-rw-r--r--
msg.h	3.27 KB	-rw-r--r--
mtio.h	7.98 KB	-rw-r--r--
n_r3964.h	2.35 KB	-rw-r--r--
nbd-netlink.h	2.32 KB	-rw-r--r--
nbd.h	2.95 KB	-rw-r--r--
ncp.h	5 KB	-rw-r--r--
ncp_fs.h	3.34 KB	-rw-r--r--
ncp_mount.h	2.12 KB	-rw-r--r--
ncp_no.h	714 B	-rw-r--r--
ncsi.h	3.79 KB	-rw-r--r--
ndctl.h	7.98 KB	-rw-r--r--
neighbour.h	4.24 KB	-rw-r--r--
net.h	2.04 KB	-rw-r--r--
net_dropmon.h	1.13 KB	-rw-r--r--
net_namespace.h	672 B	-rw-r--r--
net_tstamp.h	4.33 KB	-rw-r--r--
netconf.h	589 B	-rw-r--r--
netdevice.h	2.2 KB	-rw-r--r--
netfilter.h	1.78 KB	-rw-r--r--
netfilter_arp.h	444 B	-rw-r--r--
netfilter_bridge.h	901 B	-rw-r--r--
netfilter_decnet.h	1.89 KB	-rw-r--r--
netfilter_ipv4.h	2.08 KB	-rw-r--r--
netfilter_ipv6.h	2.1 KB	-rw-r--r--
netlink.h	7.61 KB	-rw-r--r--
netlink_diag.h	1.49 KB	-rw-r--r--
netrom.h	807 B	-rw-r--r--
nfc.h	10.97 KB	-rw-r--r--
nfs.h	4.37 KB	-rw-r--r--
nfs2.h	1.43 KB	-rw-r--r--
nfs3.h	2.3 KB	-rw-r--r--
nfs4.h	6.28 KB	-rw-r--r--
nfs4_mount.h	1.89 KB	-rw-r--r--
nfs_fs.h	1.57 KB	-rw-r--r--
nfs_idmap.h	2.19 KB	-rw-r--r--
nfs_mount.h	2.38 KB	-rw-r--r--
nfsacl.h	668 B	-rw-r--r--
nilfs2_api.h	7.41 KB	-rw-r--r--
nilfs2_ondisk.h	17.66 KB	-rw-r--r--
nl80211.h	228.77 KB	-rw-r--r--
nsfs.h	639 B	-rw-r--r--
nubus.h	8.37 KB	-rw-r--r--
nvme_ioctl.h	1.61 KB	-rw-r--r--
nvram.h	532 B	-rw-r--r--
omap3isp.h	20.25 KB	-rw-r--r--
omapfb.h	5.78 KB	-rw-r--r--
oom.h	511 B	-rw-r--r--
openvswitch.h	34.48 KB	-rw-r--r--
packet_diag.h	1.63 KB	-rw-r--r--
param.h	141 B	-rw-r--r--
parport.h	3.56 KB	-rw-r--r--
patchkey.h	892 B	-rw-r--r--
pci.h	1.35 KB	-rw-r--r--
pci_regs.h	53.44 KB	-rw-r--r--
pcitest.h	579 B	-rw-r--r--
perf_event.h	30.78 KB	-rw-r--r--
personality.h	2.05 KB	-rw-r--r--
pfkeyv2.h	10.32 KB	-rw-r--r--
pg.h	2.29 KB	-rw-r--r--
phantom.h	1.62 KB	-rw-r--r--
phonet.h	4.57 KB	-rw-r--r--
pkt_cls.h	11.72 KB	-rw-r--r--
pkt_sched.h	20.86 KB	-rw-r--r--
pktcdvd.h	2.62 KB	-rw-r--r--
pmu.h	5.19 KB	-rw-r--r--
poll.h	22 B	-rw-r--r--
posix_acl.h	1.22 KB	-rw-r--r--
posix_acl_xattr.h	1.09 KB	-rw-r--r--
posix_types.h	1.07 KB	-rw-r--r--
ppdev.h	3.14 KB	-rw-r--r--
ppp-comp.h	2.47 KB	-rw-r--r--
ppp-ioctl.h	5.35 KB	-rw-r--r--
ppp_defs.h	4.99 KB	-rw-r--r--
pps.h	4.62 KB	-rw-r--r--
pr.h	1.05 KB	-rw-r--r--
prctl.h	7.73 KB	-rw-r--r--
psample.h	798 B	-rw-r--r--
psci.h	3.96 KB	-rw-r--r--
ptp_clock.h	4.75 KB	-rw-r--r--
ptrace.h	3.26 KB	-rw-r--r--
qnx4_fs.h	2.27 KB	-rw-r--r--
qnxtypes.h	624 B	-rw-r--r--
qrtr.h	893 B	-rw-r--r--
quota.h	6.14 KB	-rw-r--r--
radeonfb.h	360 B	-rw-r--r--
random.h	1.38 KB	-rw-r--r--
raw.h	365 B	-rw-r--r--
rds.h	8.91 KB	-rw-r--r--
reboot.h	1.31 KB	-rw-r--r--
reiserfs_fs.h	775 B	-rw-r--r--
reiserfs_xattr.h	533 B	-rw-r--r--
resource.h	2.29 KB	-rw-r--r--
rfkill.h	3.6 KB	-rw-r--r--
rio_cm_cdev.h	3.17 KB	-rw-r--r--
rio_mport_cdev.h	9.11 KB	-rw-r--r--
romfs_fs.h	1.21 KB	-rw-r--r--
rose.h	2.18 KB	-rw-r--r--
route.h	2.28 KB	-rw-r--r--
rpmsg.h	1002 B	-rw-r--r--
rtc.h	3.92 KB	-rw-r--r--
rtnetlink.h	17.57 KB	-rw-r--r--
rxrpc.h	4.96 KB	-rw-r--r--
scc.h	4.49 KB	-rw-r--r--
sched.h	2.29 KB	-rw-r--r--
scif_ioctl.h	6.23 KB	-rw-r--r--
screen_info.h	2.42 KB	-rw-r--r--
sctp.h	31.97 KB	-rw-r--r--
sdla.h	2.77 KB	-rw-r--r--
seccomp.h	2.2 KB	-rw-r--r--
securebits.h	2.64 KB	-rw-r--r--
sed-opal.h	3.2 KB	-rw-r--r--
seg6.h	1.14 KB	-rw-r--r--
seg6_genl.h	589 B	-rw-r--r--
seg6_hmac.h	423 B	-rw-r--r--
seg6_iptunnel.h	927 B	-rw-r--r--
seg6_local.h	1.76 KB	-rw-r--r--
selinux_netlink.h	1.17 KB	-rw-r--r--
sem.h	2.95 KB	-rw-r--r--
serial.h	3.34 KB	-rw-r--r--
serial_core.h	6.1 KB	-rw-r--r--
serial_reg.h	15.19 KB	-rw-r--r--
serio.h	2.02 KB	-rw-r--r--
shm.h	3.58 KB	-rw-r--r--
signal.h	388 B	-rw-r--r--
signalfd.h	1.13 KB	-rw-r--r--
smc.h	780 B	-rw-r--r--
smc_diag.h	2.21 KB	-rw-r--r--
smiapp.h	1.03 KB	-rw-r--r--
snmp.h	12.35 KB	-rw-r--r--
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Code Editor : openvswitch.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

/*
 * Copyright (c) 2007-2017 Nicira, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA
 */

#ifndef __LINUX_OPENVSWITCH_H
#define __LINUX_OPENVSWITCH_H 1

#include <linux/types.h>
#include <linux/if_ether.h>

/**
 * struct ovs_header - header for OVS Generic Netlink messages.
 * @dp_ifindex: ifindex of local port for datapath (0 to make a request not
 * specific to a datapath).
 *
 * Attributes following the header are specific to a particular OVS Generic
 * Netlink family, but all of the OVS families use this header.
 */

struct ovs_header {
	int dp_ifindex;
};

/* Datapaths. */

#define OVS_DATAPATH_FAMILY  "ovs_datapath"
#define OVS_DATAPATH_MCGROUP "ovs_datapath"

/* V2:
 *   - API users are expected to provide OVS_DP_ATTR_USER_FEATURES
 *     when creating the datapath.
 */
#define OVS_DATAPATH_VERSION 2

/* First OVS datapath version to support features */
#define OVS_DP_VER_FEATURES 2

enum ovs_datapath_cmd {
	OVS_DP_CMD_UNSPEC,
	OVS_DP_CMD_NEW,
	OVS_DP_CMD_DEL,
	OVS_DP_CMD_GET,
	OVS_DP_CMD_SET
};

/**
 * enum ovs_datapath_attr - attributes for %OVS_DP_* commands.
 * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local
 * port".  This is the name of the network device whose dp_ifindex is given in
 * the &struct ovs_header.  Always present in notifications.  Required in
 * %OVS_DP_NEW requests.  May be used as an alternative to specifying
 * dp_ifindex in other requests (with a dp_ifindex of 0).
 * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially
 * set on the datapath port (for OVS_ACTION_ATTR_MISS).  Only valid on
 * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should
 * not be sent.
 * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the
 * datapath.  Always present in notifications.
 * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the
 * datapath. Always present in notifications.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_DP_* commands.
 */
enum ovs_datapath_attr {
	OVS_DP_ATTR_UNSPEC,
	OVS_DP_ATTR_NAME,		/* name of dp_ifindex netdev */
	OVS_DP_ATTR_UPCALL_PID,		/* Netlink PID to receive upcalls */
	OVS_DP_ATTR_STATS,		/* struct ovs_dp_stats */
	OVS_DP_ATTR_MEGAFLOW_STATS,	/* struct ovs_dp_megaflow_stats */
	OVS_DP_ATTR_USER_FEATURES,	/* OVS_DP_F_*  */
	OVS_DP_ATTR_PAD,
	__OVS_DP_ATTR_MAX
};

#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1)

struct ovs_dp_stats {
	__u64 n_hit;             /* Number of flow table matches. */
	__u64 n_missed;          /* Number of flow table misses. */
	__u64 n_lost;            /* Number of misses not sent to userspace. */
	__u64 n_flows;           /* Number of flows present */
};

struct ovs_dp_megaflow_stats {
	__u64 n_mask_hit;	 /* Number of masks used for flow lookups. */
	__u32 n_masks;		 /* Number of masks for the datapath. */
	__u32 pad0;		 /* Pad for future expension. */
	__u64 pad1;		 /* Pad for future expension. */
	__u64 pad2;		 /* Pad for future expension. */
};

struct ovs_vport_stats {
	__u64   rx_packets;		/* total packets received       */
	__u64   tx_packets;		/* total packets transmitted    */
	__u64   rx_bytes;		/* total bytes received         */
	__u64   tx_bytes;		/* total bytes transmitted      */
	__u64   rx_errors;		/* bad packets received         */
	__u64   tx_errors;		/* packet transmit problems     */
	__u64   rx_dropped;		/* no space in linux buffers    */
	__u64   tx_dropped;		/* no space available in linux  */
};

/* Allow last Netlink attribute to be unaligned */
#define OVS_DP_F_UNALIGNED	(1 << 0)

/* Allow datapath to associate multiple Netlink PIDs to each vport */
#define OVS_DP_F_VPORT_PIDS	(1 << 1)

/* Fixed logical ports. */
#define OVSP_LOCAL      ((__u32)0)

/* Packet transfer. */

#define OVS_PACKET_FAMILY "ovs_packet"
#define OVS_PACKET_VERSION 0x1

enum ovs_packet_cmd {
	OVS_PACKET_CMD_UNSPEC,

/* Kernel-to-user notifications. */
	OVS_PACKET_CMD_MISS,    /* Flow table miss. */
	OVS_PACKET_CMD_ACTION,  /* OVS_ACTION_ATTR_USERSPACE action. */

/* Userspace commands. */
	OVS_PACKET_CMD_EXECUTE  /* Apply actions to a packet. */
};

/**
 * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands.
 * @OVS_PACKET_ATTR_PACKET: Present for all notifications.  Contains the entire
 * packet as received, from the start of the Ethernet header onward.  For
 * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by
 * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is
 * the flow key extracted from the packet as originally received.
 * @OVS_PACKET_ATTR_KEY: Present for all notifications.  Contains the flow key
 * extracted from the packet as nested %OVS_KEY_ATTR_* attributes.  This allows
 * userspace to adapt its flow setup strategy by comparing its notion of the
 * flow key against the kernel's.
 * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet.  Used
 * for %OVS_PACKET_CMD_EXECUTE.  It has nested %OVS_ACTION_ATTR_* attributes.
 * Also used in upcall when %OVS_ACTION_ATTR_USERSPACE has optional
 * %OVS_USERSPACE_ATTR_ACTIONS attribute.
 * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
 * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content
 * specified there.
 * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION
 * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
 * %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the
 * output port is actually a tunnel port. Contains the output tunnel key
 * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes.
 * @OVS_PACKET_ATTR_MRU: Present for an %OVS_PACKET_CMD_ACTION and
 * @OVS_PACKET_ATTR_LEN: Packet size before truncation.
 * %OVS_PACKET_ATTR_USERSPACE action specify the Maximum received fragment
 * size.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_PACKET_* commands.
 */
enum ovs_packet_attr {
	OVS_PACKET_ATTR_UNSPEC,
	OVS_PACKET_ATTR_PACKET,      /* Packet data. */
	OVS_PACKET_ATTR_KEY,         /* Nested OVS_KEY_ATTR_* attributes. */
	OVS_PACKET_ATTR_ACTIONS,     /* Nested OVS_ACTION_ATTR_* attributes. */
	OVS_PACKET_ATTR_USERDATA,    /* OVS_ACTION_ATTR_USERSPACE arg. */
	OVS_PACKET_ATTR_EGRESS_TUN_KEY,  /* Nested OVS_TUNNEL_KEY_ATTR_*
					    attributes. */
	OVS_PACKET_ATTR_UNUSED1,
	OVS_PACKET_ATTR_UNUSED2,
	OVS_PACKET_ATTR_PROBE,      /* Packet operation is a feature probe,
				       error logging should be suppressed. */
	OVS_PACKET_ATTR_MRU,	    /* Maximum received IP fragment size. */
	OVS_PACKET_ATTR_LEN,		/* Packet size before truncation. */
	__OVS_PACKET_ATTR_MAX
};

#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1)

/* Virtual ports. */

#define OVS_VPORT_FAMILY  "ovs_vport"
#define OVS_VPORT_MCGROUP "ovs_vport"
#define OVS_VPORT_VERSION 0x1

enum ovs_vport_cmd {
	OVS_VPORT_CMD_UNSPEC,
	OVS_VPORT_CMD_NEW,
	OVS_VPORT_CMD_DEL,
	OVS_VPORT_CMD_GET,
	OVS_VPORT_CMD_SET
};

enum ovs_vport_type {
	OVS_VPORT_TYPE_UNSPEC,
	OVS_VPORT_TYPE_NETDEV,   /* network device */
	OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
	OVS_VPORT_TYPE_GRE,      /* GRE tunnel. */
	OVS_VPORT_TYPE_VXLAN,	 /* VXLAN tunnel. */
	OVS_VPORT_TYPE_GENEVE,	 /* Geneve tunnel. */
	__OVS_VPORT_TYPE_MAX
};

#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1)

/**
 * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands.
 * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath.
 * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type
 * of vport.
 * @OVS_VPORT_ATTR_NAME: Name of vport.  For a vport based on a network device
 * this is the name of the network device.  Maximum length %IFNAMSIZ-1 bytes
 * plus a null terminator.
 * @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information.
 * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace
 * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets
 * received on this port.  If this is a single-element array of value 0,
 * upcalls should not be sent.
 * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
 * packets sent or received through the vport.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_VPORT_* commands.
 *
 * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and
 * %OVS_VPORT_ATTR_NAME attributes are required.  %OVS_VPORT_ATTR_PORT_NO is
 * optional; if not specified a free port number is automatically selected.
 * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
 * of vport.
 *
 * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to
 * look up the vport to operate on; otherwise dp_idx from the &struct
 * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport.
 */
enum ovs_vport_attr {
	OVS_VPORT_ATTR_UNSPEC,
	OVS_VPORT_ATTR_PORT_NO,	/* u32 port number within datapath */
	OVS_VPORT_ATTR_TYPE,	/* u32 OVS_VPORT_TYPE_* constant. */
	OVS_VPORT_ATTR_NAME,	/* string name, up to IFNAMSIZ bytes long */
	OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
	OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */
				/* receiving upcalls */
	OVS_VPORT_ATTR_STATS,	/* struct ovs_vport_stats */
	OVS_VPORT_ATTR_PAD,
	OVS_VPORT_ATTR_IFINDEX,
	OVS_VPORT_ATTR_NETNSID,
	__OVS_VPORT_ATTR_MAX
};

#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)

enum {
	OVS_VXLAN_EXT_UNSPEC,
	OVS_VXLAN_EXT_GBP,	/* Flag or __u32 */
	__OVS_VXLAN_EXT_MAX,
};

#define OVS_VXLAN_EXT_MAX (__OVS_VXLAN_EXT_MAX - 1)

/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
 */
enum {
	OVS_TUNNEL_ATTR_UNSPEC,
	OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
	OVS_TUNNEL_ATTR_EXTENSION,
	__OVS_TUNNEL_ATTR_MAX
};

#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)

/* Flows. */

#define OVS_FLOW_FAMILY  "ovs_flow"
#define OVS_FLOW_MCGROUP "ovs_flow"
#define OVS_FLOW_VERSION 0x1

enum ovs_flow_cmd {
	OVS_FLOW_CMD_UNSPEC,
	OVS_FLOW_CMD_NEW,
	OVS_FLOW_CMD_DEL,
	OVS_FLOW_CMD_GET,
	OVS_FLOW_CMD_SET
};

struct ovs_flow_stats {
	__u64 n_packets;         /* Number of matched packets. */
	__u64 n_bytes;           /* Number of matched bytes. */
};

enum ovs_key_attr {
	OVS_KEY_ATTR_UNSPEC,
	OVS_KEY_ATTR_ENCAP,	/* Nested set of encapsulated attributes. */
	OVS_KEY_ATTR_PRIORITY,  /* u32 skb->priority */
	OVS_KEY_ATTR_IN_PORT,   /* u32 OVS dp port number */
	OVS_KEY_ATTR_ETHERNET,  /* struct ovs_key_ethernet */
	OVS_KEY_ATTR_VLAN,	/* be16 VLAN TCI */
	OVS_KEY_ATTR_ETHERTYPE,	/* be16 Ethernet type */
	OVS_KEY_ATTR_IPV4,      /* struct ovs_key_ipv4 */
	OVS_KEY_ATTR_IPV6,      /* struct ovs_key_ipv6 */
	OVS_KEY_ATTR_TCP,       /* struct ovs_key_tcp */
	OVS_KEY_ATTR_UDP,       /* struct ovs_key_udp */
	OVS_KEY_ATTR_ICMP,      /* struct ovs_key_icmp */
	OVS_KEY_ATTR_ICMPV6,    /* struct ovs_key_icmpv6 */
	OVS_KEY_ATTR_ARP,       /* struct ovs_key_arp */
	OVS_KEY_ATTR_ND,        /* struct ovs_key_nd */
	OVS_KEY_ATTR_SKB_MARK,  /* u32 skb mark */
	OVS_KEY_ATTR_TUNNEL,    /* Nested set of ovs_tunnel attributes */
	OVS_KEY_ATTR_SCTP,      /* struct ovs_key_sctp */
	OVS_KEY_ATTR_TCP_FLAGS,	/* be16 TCP flags. */
	OVS_KEY_ATTR_DP_HASH,      /* u32 hash value. Value 0 indicates the hash
				   is not computed by the datapath. */
	OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
	OVS_KEY_ATTR_MPLS,      /* array of struct ovs_key_mpls.
				 * The implementation may restrict
				 * the accepted length of the array. */
	OVS_KEY_ATTR_CT_STATE,	/* u32 bitmask of OVS_CS_F_* */
	OVS_KEY_ATTR_CT_ZONE,	/* u16 connection tracking zone. */
	OVS_KEY_ATTR_CT_MARK,	/* u32 connection tracking mark */
	OVS_KEY_ATTR_CT_LABELS,	/* 16-octet connection tracking label */
	OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4,   /* struct ovs_key_ct_tuple_ipv4 */
	OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6,   /* struct ovs_key_ct_tuple_ipv6 */
	OVS_KEY_ATTR_NSH,       /* Nested set of ovs_nsh_key_* */

__OVS_KEY_ATTR_MAX
};

#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)

enum ovs_tunnel_key_attr {
	/* OVS_TUNNEL_KEY_ATTR_NONE, standard nl API requires this attribute! */
	OVS_TUNNEL_KEY_ATTR_ID,                 /* be64 Tunnel ID */
	OVS_TUNNEL_KEY_ATTR_IPV4_SRC,           /* be32 src IP address. */
	OVS_TUNNEL_KEY_ATTR_IPV4_DST,           /* be32 dst IP address. */
	OVS_TUNNEL_KEY_ATTR_TOS,                /* u8 Tunnel IP ToS. */
	OVS_TUNNEL_KEY_ATTR_TTL,                /* u8 Tunnel IP TTL. */
	OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT,      /* No argument, set DF. */
	OVS_TUNNEL_KEY_ATTR_CSUM,               /* No argument. CSUM packet. */
	OVS_TUNNEL_KEY_ATTR_OAM,                /* No argument. OAM frame.  */
	OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS,        /* Array of Geneve options. */
	OVS_TUNNEL_KEY_ATTR_TP_SRC,		/* be16 src Transport Port. */
	OVS_TUNNEL_KEY_ATTR_TP_DST,		/* be16 dst Transport Port. */
	OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS,		/* Nested OVS_VXLAN_EXT_* */
	OVS_TUNNEL_KEY_ATTR_IPV6_SRC,		/* struct in6_addr src IPv6 address. */
	OVS_TUNNEL_KEY_ATTR_IPV6_DST,		/* struct in6_addr dst IPv6 address. */
	OVS_TUNNEL_KEY_ATTR_PAD,
	__OVS_TUNNEL_KEY_ATTR_MAX
};

#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)

/**
 * enum ovs_frag_type - IPv4 and IPv6 fragment type
 * @OVS_FRAG_TYPE_NONE: Packet is not a fragment.
 * @OVS_FRAG_TYPE_FIRST: Packet is a fragment with offset 0.
 * @OVS_FRAG_TYPE_LATER: Packet is a fragment with nonzero offset.
 *
 * Used as the @ipv4_frag in &struct ovs_key_ipv4 and as @ipv6_frag &struct
 * ovs_key_ipv6.
 */
enum ovs_frag_type {
	OVS_FRAG_TYPE_NONE,
	OVS_FRAG_TYPE_FIRST,
	OVS_FRAG_TYPE_LATER,
	__OVS_FRAG_TYPE_MAX
};

#define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)

struct ovs_key_ethernet {
	__u8	 eth_src[ETH_ALEN];
	__u8	 eth_dst[ETH_ALEN];
};

struct ovs_key_mpls {
	__be32 mpls_lse;
};

struct ovs_key_ipv4 {
	__be32 ipv4_src;
	__be32 ipv4_dst;
	__u8   ipv4_proto;
	__u8   ipv4_tos;
	__u8   ipv4_ttl;
	__u8   ipv4_frag;	/* One of OVS_FRAG_TYPE_*. */
};

struct ovs_key_ipv6 {
	__be32 ipv6_src[4];
	__be32 ipv6_dst[4];
	__be32 ipv6_label;	/* 20-bits in least-significant bits. */
	__u8   ipv6_proto;
	__u8   ipv6_tclass;
	__u8   ipv6_hlimit;
	__u8   ipv6_frag;	/* One of OVS_FRAG_TYPE_*. */
};

struct ovs_key_tcp {
	__be16 tcp_src;
	__be16 tcp_dst;
};

struct ovs_key_udp {
	__be16 udp_src;
	__be16 udp_dst;
};

struct ovs_key_sctp {
	__be16 sctp_src;
	__be16 sctp_dst;
};

struct ovs_key_icmp {
	__u8 icmp_type;
	__u8 icmp_code;
};

struct ovs_key_icmpv6 {
	__u8 icmpv6_type;
	__u8 icmpv6_code;
};

struct ovs_key_arp {
	__be32 arp_sip;
	__be32 arp_tip;
	__be16 arp_op;
	__u8   arp_sha[ETH_ALEN];
	__u8   arp_tha[ETH_ALEN];
};

struct ovs_key_nd {
	__be32	nd_target[4];
	__u8	nd_sll[ETH_ALEN];
	__u8	nd_tll[ETH_ALEN];
};

#define OVS_CT_LABELS_LEN_32	4
#define OVS_CT_LABELS_LEN	(OVS_CT_LABELS_LEN_32 * sizeof(__u32))
struct ovs_key_ct_labels {
	union {
		__u8	ct_labels[OVS_CT_LABELS_LEN];
		__u32	ct_labels_32[OVS_CT_LABELS_LEN_32];
	};
};

/* OVS_KEY_ATTR_CT_STATE flags */
#define OVS_CS_F_NEW               0x01 /* Beginning of a new connection. */
#define OVS_CS_F_ESTABLISHED       0x02 /* Part of an existing connection. */
#define OVS_CS_F_RELATED           0x04 /* Related to an established
					 * connection. */
#define OVS_CS_F_REPLY_DIR         0x08 /* Flow is in the reply direction. */
#define OVS_CS_F_INVALID           0x10 /* Could not track connection. */
#define OVS_CS_F_TRACKED           0x20 /* Conntrack has occurred. */
#define OVS_CS_F_SRC_NAT           0x40 /* Packet's source address/port was
					 * mangled by NAT.
					 */
#define OVS_CS_F_DST_NAT           0x80 /* Packet's destination address/port
					 * was mangled by NAT.
					 */

#define OVS_CS_F_NAT_MASK (OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)

struct ovs_key_ct_tuple_ipv4 {
	__be32 ipv4_src;
	__be32 ipv4_dst;
	__be16 src_port;
	__be16 dst_port;
	__u8   ipv4_proto;
};

struct ovs_key_ct_tuple_ipv6 {
	__be32 ipv6_src[4];
	__be32 ipv6_dst[4];
	__be16 src_port;
	__be16 dst_port;
	__u8   ipv6_proto;
};

enum ovs_nsh_key_attr {
	OVS_NSH_KEY_ATTR_UNSPEC,
	OVS_NSH_KEY_ATTR_BASE,  /* struct ovs_nsh_key_base. */
	OVS_NSH_KEY_ATTR_MD1,   /* struct ovs_nsh_key_md1. */
	OVS_NSH_KEY_ATTR_MD2,   /* variable-length octets for MD type 2. */
	__OVS_NSH_KEY_ATTR_MAX
};

#define OVS_NSH_KEY_ATTR_MAX (__OVS_NSH_KEY_ATTR_MAX - 1)

struct ovs_nsh_key_base {
	__u8 flags;
	__u8 ttl;
	__u8 mdtype;
	__u8 np;
	__be32 path_hdr;
};

#define NSH_MD1_CONTEXT_SIZE 4

struct ovs_nsh_key_md1 {
	__be32 context[NSH_MD1_CONTEXT_SIZE];
};

/**
 * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
 * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow
 * key.  Always present in notifications.  Required for all requests (except
 * dumps).
 * @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
 * the actions to take for packets that match the key.  Always present in
 * notifications.  Required for %OVS_FLOW_CMD_NEW requests, optional for
 * %OVS_FLOW_CMD_SET requests.  An %OVS_FLOW_CMD_SET without
 * %OVS_FLOW_ATTR_ACTIONS will not modify the actions.  To clear the actions,
 * an %OVS_FLOW_ATTR_ACTIONS without any nested attributes must be given.
 * @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
 * flow.  Present in notifications if the stats would be nonzero.  Ignored in
 * requests.
 * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the
 * TCP flags seen on packets in this flow.  Only present in notifications for
 * TCP flows, and only if it would be nonzero.  Ignored in requests.
 * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on
 * the system monotonic clock, at which a packet was last processed for this
 * flow.  Only present in notifications if a packet has been processed for this
 * flow.  Ignored in requests.
 * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
 * last-used time, accumulated TCP flags, and statistics for this flow.
 * Otherwise ignored in requests.  Never present in notifications.
 * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the
 * mask bits for wildcarded flow match. Mask bit value '1' specifies exact
 * match with corresponding flow key bit, while mask bit value '0' specifies
 * a wildcarded match. Omitting attribute is treated as wildcarding all
 * corresponding fields. Optional for all requests. If not present,
 * all flow key bits are exact match bits.
 * @OVS_FLOW_ATTR_UFID: A value between 1-16 octets specifying a unique
 * identifier for the flow. Causes the flow to be indexed by this value rather
 * than the value of the %OVS_FLOW_ATTR_KEY attribute. Optional for all
 * requests. Present in notifications if the flow was created with this
 * attribute.
 * @OVS_FLOW_ATTR_UFID_FLAGS: A 32-bit value of OR'd %OVS_UFID_F_*
 * flags that provide alternative semantics for flow installation and
 * retrieval. Optional for all requests.
 *
 * These attributes follow the &struct ovs_header within the Generic Netlink
 * payload for %OVS_FLOW_* commands.
 */
enum ovs_flow_attr {
	OVS_FLOW_ATTR_UNSPEC,
	OVS_FLOW_ATTR_KEY,       /* Sequence of OVS_KEY_ATTR_* attributes. */
	OVS_FLOW_ATTR_ACTIONS,   /* Nested OVS_ACTION_ATTR_* attributes. */
	OVS_FLOW_ATTR_STATS,     /* struct ovs_flow_stats. */
	OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
	OVS_FLOW_ATTR_USED,      /* u64 msecs last used in monotonic time. */
	OVS_FLOW_ATTR_CLEAR,     /* Flag to clear stats, tcp_flags, used. */
	OVS_FLOW_ATTR_MASK,      /* Sequence of OVS_KEY_ATTR_* attributes. */
	OVS_FLOW_ATTR_PROBE,     /* Flow operation is a feature probe, error
				  * logging should be suppressed. */
	OVS_FLOW_ATTR_UFID,      /* Variable length unique flow identifier. */
	OVS_FLOW_ATTR_UFID_FLAGS,/* u32 of OVS_UFID_F_*. */
	OVS_FLOW_ATTR_PAD,
	__OVS_FLOW_ATTR_MAX
};

#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)

/**
 * Omit attributes for notifications.
 *
 * If a datapath request contains an %OVS_UFID_F_OMIT_* flag, then the datapath
 * may omit the corresponding %OVS_FLOW_ATTR_* from the response.
 */
#define OVS_UFID_F_OMIT_KEY      (1 << 0)
#define OVS_UFID_F_OMIT_MASK     (1 << 1)
#define OVS_UFID_F_OMIT_ACTIONS  (1 << 2)

/**
 * enum ovs_sample_attr - Attributes for %OVS_ACTION_ATTR_SAMPLE action.
 * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
 * @OVS_ACTION_ATTR_SAMPLE.  A value of 0 samples no packets, a value of
 * %UINT32_MAX samples all packets and intermediate values sample intermediate
 * fractions of packets.
 * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
 * Actions are passed as nested attributes.
 *
 * Executes the specified actions with the given probability on a per-packet
 * basis.
 */
enum ovs_sample_attr {
	OVS_SAMPLE_ATTR_UNSPEC,
	OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
	OVS_SAMPLE_ATTR_ACTIONS,     /* Nested OVS_ACTION_ATTR_* attributes. */
	__OVS_SAMPLE_ATTR_MAX,

};

#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)

/**
 * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
 * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
 * message should be sent.  Required.
 * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
 * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
 * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get
 * tunnel info.
 * @OVS_USERSPACE_ATTR_ACTIONS: If present, send actions with upcall.
 */
enum ovs_userspace_attr {
	OVS_USERSPACE_ATTR_UNSPEC,
	OVS_USERSPACE_ATTR_PID,	      /* u32 Netlink PID to receive upcalls. */
	OVS_USERSPACE_ATTR_USERDATA,  /* Optional user-specified cookie. */
	OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,  /* Optional, u32 output port
					      * to get tunnel info. */
	OVS_USERSPACE_ATTR_ACTIONS,   /* Optional flag to get actions. */
	__OVS_USERSPACE_ATTR_MAX
};

#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)

struct ovs_action_trunc {
	__u32 max_len; /* Max packet size in bytes. */
};

/**
 * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument.
 * @mpls_lse: MPLS label stack entry to push.
 * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
 *
 * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
 * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
 */
struct ovs_action_push_mpls {
	__be32 mpls_lse;
	__be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
};

/**
 * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
 * @vlan_tpid: Tag protocol identifier (TPID) to push.
 * @vlan_tci: Tag control identifier (TCI) to push.  The CFI bit must be set
 * (but it will not be set in the 802.1Q header that is pushed).
 *
 * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD.
 * The only acceptable TPID values are those that the kernel module also parses
 * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed
 * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results.
 */
struct ovs_action_push_vlan {
	__be16 vlan_tpid;	/* 802.1Q or 802.1ad TPID. */
	__be16 vlan_tci;	/* 802.1Q TCI (VLAN ID and priority). */
};

/* Data path hash algorithm for computing Datapath hash.
 *
 * The algorithm type only specifies the fields in a flow
 * will be used as part of the hash. Each datapath is free
 * to use its own hash algorithm. The hash value will be
 * opaque to the user space daemon.
 */
enum ovs_hash_alg {
	OVS_HASH_ALG_L4,
};

/*
 * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument.
 * @hash_alg: Algorithm used to compute hash prior to recirculation.
 * @hash_basis: basis used for computing hash.
 */
struct ovs_action_hash {
	__u32  hash_alg;     /* One of ovs_hash_alg. */
	__u32  hash_basis;
};

/**
 * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action.
 * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack
 * table. This allows future packets for the same connection to be identified
 * as 'established' or 'related'. The flow key for the current packet will
 * retain the pre-commit connection state.
 * @OVS_CT_ATTR_ZONE: u16 connection tracking zone.
 * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the
 * mask, the corresponding bit in the value is copied to the connection
 * tracking mark field in the connection.
 * @OVS_CT_ATTR_LABELS: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN
 * mask. For each bit set in the mask, the corresponding bit in the value is
 * copied to the connection tracking label field in the connection.
 * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG.
 * @OVS_CT_ATTR_NAT: Nested OVS_NAT_ATTR_* for performing L3 network address
 * translation (NAT) on the packet.
 * @OVS_CT_ATTR_FORCE_COMMIT: Like %OVS_CT_ATTR_COMMIT, but instead of doing
 * nothing if the connection is already committed will check that the current
 * packet is in conntrack entry's original direction.  If directionality does
 * not match, will delete the existing conntrack entry and commit a new one.
 * @OVS_CT_ATTR_EVENTMASK: Mask of bits indicating which conntrack event types
 * (enum ip_conntrack_events IPCT_*) should be reported.  For any bit set to
 * zero, the corresponding event type is not generated.  Default behavior
 * depends on system configuration, but typically all event types are
 * generated, hence listening on NFNLGRP_CONNTRACK_UPDATE events may get a lot
 * of events.  Explicitly passing this attribute allows limiting the updates
 * received to the events of interest.  The bit 1 << IPCT_NEW, 1 <<
 * IPCT_RELATED, and 1 << IPCT_DESTROY must be set to ones for those events to
 * be received on NFNLGRP_CONNTRACK_NEW and NFNLGRP_CONNTRACK_DESTROY groups,
 * respectively.  Remaining bits control the changes for which an event is
 * delivered on the NFNLGRP_CONNTRACK_UPDATE group.
 */
enum ovs_ct_attr {
	OVS_CT_ATTR_UNSPEC,
	OVS_CT_ATTR_COMMIT,     /* No argument, commits connection. */
	OVS_CT_ATTR_ZONE,       /* u16 zone id. */
	OVS_CT_ATTR_MARK,       /* mark to associate with this connection. */
	OVS_CT_ATTR_LABELS,     /* labels to associate with this connection. */
	OVS_CT_ATTR_HELPER,     /* netlink helper to assist detection of
				   related connections. */
	OVS_CT_ATTR_NAT,        /* Nested OVS_NAT_ATTR_* */
	OVS_CT_ATTR_FORCE_COMMIT,  /* No argument */
	OVS_CT_ATTR_EVENTMASK,  /* u32 mask of IPCT_* events. */
	__OVS_CT_ATTR_MAX
};

#define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1)

/**
 * enum ovs_nat_attr - Attributes for %OVS_CT_ATTR_NAT.
 *
 * @OVS_NAT_ATTR_SRC: Flag for Source NAT (mangle source address/port).
 * @OVS_NAT_ATTR_DST: Flag for Destination NAT (mangle destination
 * address/port).  Only one of (@OVS_NAT_ATTR_SRC, @OVS_NAT_ATTR_DST) may be
 * specified.  Effective only for packets for ct_state NEW connections.
 * Packets of committed connections are mangled by the NAT action according to
 * the committed NAT type regardless of the flags specified.  As a corollary, a
 * NAT action without a NAT type flag will only mangle packets of committed
 * connections.  The following NAT attributes only apply for NEW
 * (non-committed) connections, and they may be included only when the CT
 * action has the @OVS_CT_ATTR_COMMIT flag and either @OVS_NAT_ATTR_SRC or
 * @OVS_NAT_ATTR_DST is also included.
 * @OVS_NAT_ATTR_IP_MIN: struct in_addr or struct in6_addr
 * @OVS_NAT_ATTR_IP_MAX: struct in_addr or struct in6_addr
 * @OVS_NAT_ATTR_PROTO_MIN: u16 L4 protocol specific lower boundary (port)
 * @OVS_NAT_ATTR_PROTO_MAX: u16 L4 protocol specific upper boundary (port)
 * @OVS_NAT_ATTR_PERSISTENT: Flag for persistent IP mapping across reboots
 * @OVS_NAT_ATTR_PROTO_HASH: Flag for pseudo random L4 port mapping (MD5)
 * @OVS_NAT_ATTR_PROTO_RANDOM: Flag for fully randomized L4 port mapping
 */
enum ovs_nat_attr {
	OVS_NAT_ATTR_UNSPEC,
	OVS_NAT_ATTR_SRC,
	OVS_NAT_ATTR_DST,
	OVS_NAT_ATTR_IP_MIN,
	OVS_NAT_ATTR_IP_MAX,
	OVS_NAT_ATTR_PROTO_MIN,
	OVS_NAT_ATTR_PROTO_MAX,
	OVS_NAT_ATTR_PERSISTENT,
	OVS_NAT_ATTR_PROTO_HASH,
	OVS_NAT_ATTR_PROTO_RANDOM,
	__OVS_NAT_ATTR_MAX,
};

#define OVS_NAT_ATTR_MAX (__OVS_NAT_ATTR_MAX - 1)

/*
 * struct ovs_action_push_eth - %OVS_ACTION_ATTR_PUSH_ETH action argument.
 * @addresses: Source and destination MAC addresses.
 * @eth_type: Ethernet type
 */
struct ovs_action_push_eth {
	struct ovs_key_ethernet addresses;
};

/**
 * enum ovs_action_attr - Action types.
 *
 * @OVS_ACTION_ATTR_OUTPUT: Output packet to port.
 * @OVS_ACTION_ATTR_TRUNC: Output packet to port with truncated packet size.
 * @OVS_ACTION_ATTR_USERSPACE: Send packet to userspace according to nested
 * %OVS_USERSPACE_ATTR_* attributes.
 * @OVS_ACTION_ATTR_SET: Replaces the contents of an existing header.  The
 * single nested %OVS_KEY_ATTR_* attribute specifies a header to modify and its
 * value.
 * @OVS_ACTION_ATTR_SET_MASKED: Replaces the contents of an existing header.  A
 * nested %OVS_KEY_ATTR_* attribute specifies a header to modify, its value,
 * and a mask.  For every bit set in the mask, the corresponding bit value
 * is copied from the value to the packet header field, rest of the bits are
 * left unchanged.  The non-masked value bits must be passed in as zeroes.
 * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute.
 * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header
 * onto the packet.
 * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header
 * from the packet.
 * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
 * the nested %OVS_SAMPLE_ATTR_* attributes.
 * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the
 * top of the packets MPLS label stack.  Set the ethertype of the
 * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to
 * indicate the new packet contents.
 * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the
 * packet's MPLS label stack.  Set the encapsulating frame's ethertype to
 * indicate the new packet contents. This could potentially still be
 * %ETH_P_MPLS if the resulting MPLS label stack is not empty.  If there
 * is no MPLS label stack, as determined by ethertype, no action is taken.
 * @OVS_ACTION_ATTR_CT: Track the connection. Populate the conntrack-related
 * entries in the flow key.
 * @OVS_ACTION_ATTR_PUSH_ETH: Push a new outermost Ethernet header onto the
 * packet.
 * @OVS_ACTION_ATTR_POP_ETH: Pop the outermost Ethernet header off the
 * packet.
 * @OVS_ACTION_ATTR_CT_CLEAR: Clear conntrack state from the packet.
 * @OVS_ACTION_ATTR_PUSH_NSH: push NSH header to the packet.
 * @OVS_ACTION_ATTR_POP_NSH: pop the outermost NSH header off the packet.
 * @OVS_ACTION_ATTR_METER: Run packet through a meter, which may drop the
 * packet, or modify the packet (e.g., change the DSCP field).
 *
 * Only a single header can be set with a single %OVS_ACTION_ATTR_SET.  Not all
 * fields within a header are modifiable, e.g. the IPv4 protocol and fragment
 * type may not be changed.
 *
 * @OVS_ACTION_ATTR_SET_TO_MASKED: Kernel internal masked set action translated
 * from the @OVS_ACTION_ATTR_SET.
 */

enum ovs_action_attr {
	OVS_ACTION_ATTR_UNSPEC,
	OVS_ACTION_ATTR_OUTPUT,	      /* u32 port number. */
	OVS_ACTION_ATTR_USERSPACE,    /* Nested OVS_USERSPACE_ATTR_*. */
	OVS_ACTION_ATTR_SET,          /* One nested OVS_KEY_ATTR_*. */
	OVS_ACTION_ATTR_PUSH_VLAN,    /* struct ovs_action_push_vlan. */
	OVS_ACTION_ATTR_POP_VLAN,     /* No argument. */
	OVS_ACTION_ATTR_SAMPLE,       /* Nested OVS_SAMPLE_ATTR_*. */
	OVS_ACTION_ATTR_RECIRC,       /* u32 recirc_id. */
	OVS_ACTION_ATTR_HASH,	      /* struct ovs_action_hash. */
	OVS_ACTION_ATTR_PUSH_MPLS,    /* struct ovs_action_push_mpls. */
	OVS_ACTION_ATTR_POP_MPLS,     /* __be16 ethertype. */
	OVS_ACTION_ATTR_SET_MASKED,   /* One nested OVS_KEY_ATTR_* including
				       * data immediately followed by a mask.
				       * The data must be zero for the unmasked
				       * bits. */
	OVS_ACTION_ATTR_CT,           /* Nested OVS_CT_ATTR_* . */
	OVS_ACTION_ATTR_TRUNC,        /* u32 struct ovs_action_trunc. */
	OVS_ACTION_ATTR_PUSH_ETH,     /* struct ovs_action_push_eth. */
	OVS_ACTION_ATTR_POP_ETH,      /* No argument. */
	OVS_ACTION_ATTR_CT_CLEAR,     /* No argument. */
	OVS_ACTION_ATTR_PUSH_NSH,     /* Nested OVS_NSH_KEY_ATTR_*. */
	OVS_ACTION_ATTR_POP_NSH,      /* No argument. */
	OVS_ACTION_ATTR_METER,        /* u32 meter ID. */

__OVS_ACTION_ATTR_MAX,	      /* Nothing past this will be accepted
				       * from userspace. */

};

#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1)

/* Meters. */
#define OVS_METER_FAMILY  "ovs_meter"
#define OVS_METER_MCGROUP "ovs_meter"
#define OVS_METER_VERSION 0x1

enum ovs_meter_cmd {
	OVS_METER_CMD_UNSPEC,
	OVS_METER_CMD_FEATURES,	/* Get features supported by the datapath. */
	OVS_METER_CMD_SET,	/* Add or modify a meter. */
	OVS_METER_CMD_DEL,	/* Delete a meter. */
	OVS_METER_CMD_GET	/* Get meter stats. */
};

enum ovs_meter_attr {
	OVS_METER_ATTR_UNSPEC,
	OVS_METER_ATTR_ID,	/* u32 meter ID within datapath. */
	OVS_METER_ATTR_KBPS,	/* No argument. If set, units in kilobits
				 * per second. Otherwise, units in
				 * packets per second.
				 */
	OVS_METER_ATTR_STATS,	/* struct ovs_flow_stats for the meter. */
	OVS_METER_ATTR_BANDS,	/* Nested attributes for meter bands. */
	OVS_METER_ATTR_USED,	/* u64 msecs last used in monotonic time. */
	OVS_METER_ATTR_CLEAR,	/* Flag to clear stats, used. */
	OVS_METER_ATTR_MAX_METERS, /* u32 number of meters supported. */
	OVS_METER_ATTR_MAX_BANDS,  /* u32 max number of bands per meter. */
	OVS_METER_ATTR_PAD,
	__OVS_METER_ATTR_MAX
};

#define OVS_METER_ATTR_MAX (__OVS_METER_ATTR_MAX - 1)

enum ovs_band_attr {
	OVS_BAND_ATTR_UNSPEC,
	OVS_BAND_ATTR_TYPE,	/* u32 OVS_METER_BAND_TYPE_* constant. */
	OVS_BAND_ATTR_RATE,	/* u32 band rate in meter units (see above). */
	OVS_BAND_ATTR_BURST,	/* u32 burst size in meter units. */
	OVS_BAND_ATTR_STATS,	/* struct ovs_flow_stats for the band. */
	__OVS_BAND_ATTR_MAX
};

#define OVS_BAND_ATTR_MAX (__OVS_BAND_ATTR_MAX - 1)

enum ovs_meter_band_type {
	OVS_METER_BAND_TYPE_UNSPEC,
	OVS_METER_BAND_TYPE_DROP,   /* Drop exceeding packets. */
	__OVS_METER_BAND_TYPE_MAX
};

#define OVS_METER_BAND_TYPE_MAX (__OVS_METER_BAND_TYPE_MAX - 1)

#endif /* _LINUX_OPENVSWITCH_H */

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