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Daniel Borkmann cd48bdda4f sock: make cookie generation global instead of per netns 
Generating and retrieving socket cookies are a useful feature that is
exposed to BPF for various program types through bpf_get_socket_cookie()
helper.

The fact that the cookie counter is per netns is quite a limitation
for BPF in practice in particular for programs in host namespace that
use socket cookies as part of a map lookup key since they will be
causing socket cookie collisions e.g. when attached to BPF cgroup hooks
or cls_bpf on tc egress in host namespace handling container traffic
from veth or ipvlan devices with peer in different netns. Change the
counter to be global instead.

Socket cookie consumers must assume the value as opqaue in any case.
Not every socket must have a cookie generated and knowledge of the
counter value itself does not provide much value either way hence
conversion to global is fine.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Martynas Pumputis <m@lambda.lt>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-09 13:14:46 -07:00
..
android
byteorder
caif
can
cifs
dvb media: dvb: tag deprecated DVB APIs as such 2019-06-05 10:55:30 -04:00
genwqe
hdlc
hsi
iio
isdn
mmc
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-08-06 17:11:59 -07:00
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6
nfsd
raid
sched sched/uclamp: Extend sched_setattr() to support utilization clamping 2019-06-24 19:23:46 +02:00
spi
sunrpc
tc_act net/sched: Introduce action ct 2019-07-09 12:11:59 -07:00
tc_ematch
usb treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
wimax
a.out.h
acct.h
adb.h
adfs_fs.h fs/adfs: correct disc record structure 2019-06-26 20:14:13 -04:00
affs_hardblocks.h
agpgart.h
aio_abi.h
am437x-vpfe.h
apm_bios.h
arcfb.h
arm_sdei.h
aspeed-lpc-ctrl.h
aspeed-p2a-ctrl.h
atalk.h
atm.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_tcp.h
atm_zatm.h
atmapi.h
atmarp.h
atmbr2684.h
atmclip.h
atmdev.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
audit.h audit: add saddr_fam filter field 2019-05-23 21:07:30 -04:00
auto_dev-ioctl.h
auto_fs.h
auto_fs4.h
auxvec.h
ax25.h
b1lli.h
batadv_packet.h batman-adv: mcast: detect, distribute and maintain multicast router presence 2019-06-27 19:25:05 +02:00
batman_adv.h
baycom.h
bcache.h
bcm933xx_hcs.h
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h
blkzoned.h
bpf.h sock: make cookie generation global instead of per netns 2019-08-09 13:14:46 -07:00
bpf_common.h
bpf_perf_event.h
bpfilter.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
bpqether.h
bsg.h
bt-bmc.h
btf.h bpf: btf: fix the brackets of BTF_INT_OFFSET() 2019-05-14 10:05:18 +02:00
btrfs.h
btrfs_tree.h btrfs: add mask for all RAID1 types 2019-07-02 12:30:48 +02:00
can.h
capability.h
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h
cec-funcs.h
cec.h media: cec: add CEC_MSG_FL_RAW flag and msg_is_raw helper function 2019-05-23 05:32:40 -04:00
cgroupstats.h
chio.h
cm4000_cs.h
cn_proc.h
coda.h coda: add hinting support for partial file caching 2019-07-16 19:23:23 -07:00
coff.h
connector.h
const.h
coresight-stm.h
cramfs_fs.h
cryptouser.h
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h
dccp.h
devlink.h devlink: Introduce PCI VF port flavour and port attribute 2019-07-09 12:02:13 -07:00
dlm.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlmconstants.h
dm-ioctl.h
dm-log-userspace.h
dma-buf.h dma-buf: add DMA_BUF_SET_NAME ioctls 2019-06-14 15:00:51 +05:30
dn.h
dns_resolver.h
dqblk_xfs.h
edd.h
efs_fs_sb.h
elf-em.h
elf-fdpic.h
elf.h
elfcore.h
errno.h
errqueue.h
erspan.h
ethtool.h net: phy: Add support for 100BaseT1 and 1000BaseT1 2019-05-22 17:46:28 -07:00
eventpoll.h
fadvise.h
falloc.h
fanotify.h
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h
fiemap.h
filter.h
firewire-cdev.h
firewire-constants.h
fou.h
fpga-dfl.h
fs.h fs/sync.c: sync_file_range(2) may use WB_SYNC_ALL writeback 2019-05-14 09:47:50 -07:00
fsi.h
fsl_hypervisor.h
fsmap.h
fuse.h fuse: add FUSE_WRITE_KILL_PRIV 2019-05-27 11:42:36 +02:00
futex.h
gameport.h
gen_stats.h
genetlink.h
gfs2_ondisk.h
gigaset_dev.h
gpio.h
gsmmux.h
gtp.h
hash_info.h
hdlc.h
hdlcdrv.h
hdreg.h
hid.h
hiddev.h
hidraw.h
hpet.h
hsr_netlink.h
hw_breakpoint.h
hyperv.h
hysdn_if.h
i2c-dev.h
i2c.h
i2o-dev.h
i8k.h
icmp.h
icmpv6.h
if.h
if_addr.h
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h
if_bonding.h
if_bridge.h
if_cablemodem.h
if_eql.h
if_ether.h net: Add a define for LLDP ethertype 2019-06-05 13:04:29 -07:00
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h bonding: add an option to specify a delay between peer notifications 2019-07-04 12:30:48 -07:00
if_ltalk.h
if_macsec.h
if_packet.h packet: Fix undefined behavior in bit shift 2019-06-29 11:06:17 -07:00
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h
if_slip.h
if_team.h
if_tun.h
if_tunnel.h
if_vlan.h
if_x25.h
if_xdp.h xsk: Add getsockopt XDP_OPTIONS 2019-06-27 22:53:26 +02:00
ife.h
igmp.h
ila.h
in.h
in6.h
in_route.h
inet_diag.h
inotify.h
input-event-codes.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2019-05-13 15:21:48 -07:00
input.h
io_uring.h io_uring: add support for recvmsg() 2019-07-09 14:32:14 -06:00
ioctl.h
iommu.h iommu: Add padding to struct iommu_fault 2019-06-18 17:14:35 +02:00
ip.h
ip6_tunnel.h
ip_vs.h ipvs: allow tunneling with gre encapsulation 2019-07-04 02:29:49 +02:00
ipc.h
ipmi.h
ipmi_bmc.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
ipmi_msgdefs.h
ipsec.h
ipv6.h
ipv6_route.h
ipx.h
irqnr.h
iso_fs.h
isst_if.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
ivtv.h
ivtvfb.h
jffs2.h
joystick.h
kcm.h
kcmp.h
kcov.h
kd.h
kdev_t.h
kernel-page-flags.h
kernel.h
kernelcapi.h
kexec.h
keyboard.h
keyctl.h Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
kfd_ioctl.h drm/amdkfd: New IOCTL to allocate queue GWS 2019-05-28 14:44:31 -05:00
kvm.h Documentation: move Documentation/virtual to Documentation/virt 2019-07-24 10:52:11 +02:00
kvm_para.h KVM: X86: Yield to IPI target if necessary 2019-07-02 18:56:01 +02:00
l2tp.h
libc-compat.h
lightnvm.h
limits.h
lirc.h
llc.h
loop.h
lp.h
lwtunnel.h
magic.h Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
major.h
map_to_7segment.h
matroxfb.h
max2175.h
mdio.h
media-bus-format.h
media.h media: media.h: Fix shifting signed 32-bit value by 31 bits problem 2019-06-21 16:45:38 -04:00
mei.h
membarrier.h
memfd.h
mempolicy.h
meye.h
mic_common.h
mic_ioctl.h
mii.h net: phy: Add detection of 1000BaseX link mode support 2019-06-06 13:48:51 -07:00
minix_fs.h
mman.h
mmtimer.h
module.h
mount.h
mpls.h
mpls_iptunnel.h
mqueue.h
mroute.h
mroute6.h
msdos_fs.h
msg.h
mtio.h
n_r3964.h
nbd-netlink.h
nbd.h
ncsi.h
ndctl.h
neighbour.h
net.h
net_dropmon.h
net_namespace.h
net_tstamp.h
netconf.h
netdevice.h
netfilter.h
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h
netlink_diag.h
netrom.h
nexthop.h net: nexthop uapi 2019-05-28 21:37:30 -07:00
nfc.h
nfs.h
nfs2.h
nfs3.h
nfs4.h
nfs4_mount.h
nfs_fs.h
nfs_idmap.h
nfs_mount.h
nfsacl.h
nilfs2_api.h
nilfs2_ondisk.h nilfs2: do not use unexported cpu_to_le32()/le32_to_cpu() in uapi header 2019-07-12 11:05:40 -07:00
nl80211.h nl80211: fix NL80211_HE_MAX_CAPABILITY_LEN 2019-07-20 21:38:44 +02:00
nsfs.h
nubus.h
nvme_ioctl.h
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h
packet_diag.h
param.h
parport.h
patchkey.h
pci.h
pci_regs.h PCI: Decode PCIe 32 GT/s link speed 2019-06-13 16:49:45 -05:00
pcitest.h
perf_event.h
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h net/sched: cls_flower: Add matching on conntrack info 2019-07-09 12:12:00 -07:00
pkt_sched.h fix: taprio: Change type of txtime-delay parameter to u32 2019-07-16 14:19:19 -07:00
pktcdvd.h
pmu.h
poll.h
posix_acl.h
posix_acl_xattr.h
posix_types.h
ppdev.h
ppp-comp.h
ppp-ioctl.h
ppp_defs.h
pps.h
pr.h
prctl.h
psample.h
psci.h
psp-sev.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
ptp_clock.h
ptrace.h ptrace: add PTRACE_GET_SYSCALL_INFO request 2019-07-16 19:23:24 -07:00
qemu_fw_cfg.h
qnx4_fs.h
qnxtypes.h
qrtr.h
quota.h
radeonfb.h
random.h
raw.h
rds.h net: rds: add per rds connection cache statistics 2019-06-05 17:07:06 -07:00
reboot.h
reiserfs_fs.h
reiserfs_xattr.h
resource.h
rfkill.h
rio_cm_cdev.h
rio_mport_cdev.h
romfs_fs.h
rose.h
route.h
rpmsg.h
rseq.h
rtc.h
rtnetlink.h net: nexthop uapi 2019-05-28 21:37:30 -07:00
rxrpc.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
scc.h
sched.h clone3-v5.3 2019-07-11 10:09:44 -07:00
scif_ioctl.h
screen_info.h
sctp.h
sdla.h
seccomp.h
securebits.h
sed-opal.h block: sed-opal: ioctl for writing to shadow mbr 2019-06-29 10:33:57 -06:00
seg6.h
seg6_genl.h
seg6_hmac.h
seg6_iptunnel.h
seg6_local.h
selinux_netlink.h
sem.h
serial.h
serial_core.h tty: serial: netx: Delete driver 2019-07-25 12:05:28 +02:00
serial_reg.h
serio.h
shm.h
signal.h
signalfd.h
smc.h
smc_diag.h
smiapp.h
snmp.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-17 20:20:36 -07:00
sock_diag.h
socket.h net/socket: fix GCC8+ Wpacked-not-aligned warnings 2019-08-03 11:02:46 -07:00
sockios.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
stm.h
string.h
suspend_ioctls.h
swab.h
switchtec_ioctl.h
sync_file.h
synclink.h
sysctl.h
sysinfo.h
target_core_user.h
taskstats.h
tcp.h tcp: add optional per socket transmit delay 2019-06-12 13:05:43 -07:00
tcp_metrics.h
tee.h
termios.h
thermal.h
time.h
time_types.h
timerfd.h
times.h
timex.h
tiocl.h
tipc.h
tipc_config.h tipc: Avoid copying bytes beyond the supplied data 2019-05-20 20:16:08 -04:00
tipc_netlink.h
tipc_sockets_diag.h
tls.h
toshiba.h
tty.h
tty_flags.h
types.h
udf_fs_i.h
udmabuf.h
udp.h
uhid.h
uinput.h
uio.h
uleds.h
ultrasound.h
un.h
unistd.h
unix_diag.h net: Add UNIX_DIAG_UID to Netlink UNIX socket diagnostics. 2019-05-22 10:36:35 -07:00
usbdevice_fs.h USB: fix types in uapi include 2019-06-19 16:56:14 +02:00
usbip.h
userfaultfd.h
userio.h
utime.h
utsname.h
uuid.h
uvcvideo.h
v4l2-common.h
v4l2-controls.h media: v4l2-ctrl: add MPEG-2 profile and level controls 2019-05-29 06:19:12 -04:00
v4l2-dv-timings.h
v4l2-mediabus.h
v4l2-subdev.h
vbox_err.h
vbox_vmmdev_types.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
vboxguest.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
veth.h
vfio.h
vfio_ccw.h
vhost.h
vhost_types.h
videodev2.h media: videodev2.h: change V4L2_PIX_FMT_BGRA444 define: fourcc was already in use 2019-07-11 09:00:38 -04:00
virtio_9p.h
virtio_balloon.h
virtio_blk.h
virtio_config.h
virtio_console.h
virtio_crypto.h
virtio_gpu.h
virtio_ids.h - virtio_pmem: The new virtio_pmem facility introduces a paravirtualized 2019-07-18 10:52:08 -07:00
virtio_input.h
virtio_iommu.h iommu/virtio: Update to most recent specification 2019-07-22 11:52:27 -04:00
virtio_mmio.h
virtio_net.h
virtio_pci.h
virtio_pmem.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
virtio_ring.h
virtio_rng.h
virtio_scsi.h
virtio_types.h
virtio_vsock.h
vm_sockets.h
vm_sockets_diag.h
vmcore.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
vsockmon.h
vt.h
vtpm_proxy.h
wait.h
watchdog.h
wimax.h
wireless.h
wmi.h treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
x25.h
xattr.h
xdp_diag.h
xfrm.h
xilinx-v4l2-controls.h
zorro.h
zorro_ids.h