twx-linux/include/uapi/linux
Michael Kerrisk (man-pages) d95fa3c76a nsfs: Add an ioctl() to return owner UID of a userns
I'd like to write code that discovers the user namespace hierarchy on a
running system, and also shows who owns the various user namespaces.
Currently, there is no way of getting the owner UID of a user namespace.
Therefore, this patch adds a new NS_GET_CREATOR_UID ioctl() that fetches
the UID (as seen in the user namespace of the caller) of the creator of
the user namespace referred to by the specified file descriptor.

If the supplied file descriptor does not refer to a user namespace,
the operation fails with the error EINVAL. If the owner UID does
not have a mapping in the caller's user namespace return the
overflow UID as that appears easier to deal with in practice
in user-space applications.

-- EWB Changed the handling of unmapped UIDs from -EOVERFLOW
   back to the overflow uid.  Per conversation with
   Michael Kerrisk after examining his test code.

Acked-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Michael Kerrisk <mtk-manpages@gmail.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2017-02-03 14:35:43 +13:00
..
android
byteorder
caif
can
cifs
dvb [media] fix broken references on dvb/video*rst 2016-09-09 09:53:35 -03:00
genwqe
hdlc
hsi HSI: hsi_char.h: use __u32 from linux/types.h 2016-08-22 22:43:35 +02:00
iio iio: Implement counter channel type and info constants 2016-10-01 17:06:02 +01:00
isdn
mmc mmc: block: Change MMC_IOC_MAX_BYTES 2016-11-29 09:00:30 +01:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2016-12-07 19:16:46 -05:00
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6
nfsd
raid md/failfast: add failfast flag for md to be used by some personalities. 2016-11-22 08:58:17 -08:00
spi
sunrpc
tc_act Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
tc_ematch
usb usb: ch9: make usb_endpoint_maxp() return only packet size 2016-11-03 10:38:22 +02:00
wimax
a.out.h
acct.h
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h
am437x-vpfe.h
apm_bios.h
arcfb.h
atalk.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_tcp.h
atm_zatm.h Revert "include/uapi/linux/atm_zatm.h: include linux/time.h" 2016-11-13 12:35:13 -05:00
atm.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 Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit 2016-12-14 14:06:40 -08:00
auto_dev-ioctl.h autofs4: move linux/auto_dev-ioctl.h to uapi/linux 2016-10-11 15:06:31 -07:00
auto_fs4.h
auto_fs.h autofs: move inclusion of linux/limits.h to uapi 2016-10-11 15:06:31 -07:00
auxvec.h
ax25.h
b1lli.h
batman_adv.h batman-adv: add backbone table netlink support 2016-08-09 07:54:43 +02:00
baycom.h
bcache.h
bcm933xx_hcs.h
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h
blkzoned.h blk-zoned: implement ioctls 2016-10-18 10:05:42 -06:00
bpf_common.h
bpf_perf_event.h bpf: introduce BPF_PROG_TYPE_PERF_EVENT program type 2016-09-02 10:46:44 -07:00
bpf.h bpf: xdp: Allow head adjustment in XDP prog 2016-12-08 14:25:13 -05:00
bpqether.h net: bpqether.h: remove if_ether.h guard 2016-11-13 00:57:53 -05:00
bsg.h
bt-bmc.h ipmi: add an Aspeed BT IPMI BMC driver 2016-09-29 19:05:06 -05:00
btrfs_tree.h
btrfs.h Btrfs: catch invalid free space trees 2016-10-03 18:52:14 +02:00
can.h can: raw: raw_setsockopt: limit number of can_filter that can be set 2016-12-07 10:45:57 +01:00
capability.h uapi: move forward declarations of internal structures 2016-08-02 17:31:41 -04:00
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h
cec-funcs.h [media] cec.h/cec-funcs.h: don't use bool in public headers 2016-11-16 15:43:10 -02:00
cec.h [media] cec.h/cec-funcs.h: don't use bool in public headers 2016-11-16 15:43:10 -02:00
cgroupstats.h
chio.h
cm4000_cs.h
cn_proc.h
coda_psdev.h
coda.h
coff.h
connector.h
const.h
coresight-stm.h
cramfs_fs.h
cryptouser.h crypto: acomp - add asynchronous compression api 2016-10-25 11:08:30 +08:00
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h
dccp.h
devlink.h devlink: Add E-Switch inline mode control 2016-11-24 16:01:14 -05:00
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlm.h
dlmconstants.h
dm-ioctl.h dm: add infrastructure for DAX support 2016-07-20 23:49:49 -04:00
dm-log-userspace.h uapi dm-log-userspace.h: use __u32, __s32, __u64 and __s64 from linux/types.h 2016-11-21 09:52:02 -05:00
dma-buf.h
dn.h
dqblk_xfs.h
edd.h
efs_fs_sb.h
elf-em.h bpf, elf: add official ELF machine define for eBPF 2016-07-20 12:37:39 -07:00
elf-fdpic.h
elf.h powerpc updates for 4.8 #2 2016-08-05 09:00:54 -04:00
elfcore.h
errno.h
errqueue.h
ethtool.h ethtool: (uapi) Add ETHTOOL_PHY_DOWNSHIFT to PHY tunables 2016-11-18 12:12:14 -05:00
eventpoll.h
fadvise.h
falloc.h vfs: add a FALLOC_FL_UNSHARE mode to fallocate to unshare a range of blocks 2016-10-03 09:11:14 -07:00
fanotify.h
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h net: core: add UID to flows, rules, and routes 2016-11-04 14:45:23 -04:00
fiemap.h
filter.h
firewire-cdev.h
firewire-constants.h
flat.h
fou.h
fs.h This merge request includes the dax-4.0-iomap-pmd branch which is 2016-12-14 09:17:42 -08:00
fsl_hypervisor.h
fuse.h fuse: Add posix ACL support 2016-10-01 07:32:32 +02:00
futex.h
gameport.h
gen_stats.h
genetlink.h genetlink: use idr to track families 2016-10-27 16:16:09 -04:00
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 hw_breakpoint: Allow watchpoint of length 3,5,6 and 7 2016-11-18 17:23:17 +00:00
hyperv.h
hysdn_if.h
i2c-dev.h
i2c.h
i2o-dev.h
i8k.h
icmp.h
icmpv6.h
if_addr.h
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h
if_bonding.h
if_bridge.h net: bridge: export vlan flags with the stats 2016-08-18 23:18:42 -07:00
if_cablemodem.h
if_eql.h
if_ether.h ethernet: use net core MTU range checking in more drivers 2016-10-20 14:51:08 -04:00
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h bpf, xdp: allow to pass flags to dev_change_xdp_fd 2016-11-30 10:27:20 -05:00
if_ltalk.h
if_macsec.h macsec: limit ICV length to 16 octets 2016-07-25 10:55:39 -07:00
if_packet.h
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_* 2016-12-10 23:29:11 -05:00
if_pppox.h include/uapi/linux/if_pppox.h: include linux/in.h and linux/in6.h 2016-08-22 16:25:15 -07:00
if_slip.h
if_team.h
if_tun.h
if_tunnel.h Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-09-25 23:34:19 +02:00
if_vlan.h
if_x25.h
if.h uapi glibc compat: fix outer guard of net device flags enum 2016-12-06 10:43:32 -05:00
igmp.h
ila.h
in6.h ipv6: add IPV6_RECVFRAGSIZE cmsg 2016-11-03 15:41:11 -04:00
in_route.h
in.h ipv4: add IP_RECVFRAGSIZE cmsg 2016-11-03 15:41:11 -04:00
inet_diag.h net: ip, diag -- Add diag interface for raw sockets 2016-10-23 19:35:24 -04:00
inotify.h
input-event-codes.h Input: change KEY_DATA from 0x275 to 0x277 2016-11-30 08:59:26 -08:00
input.h HID: intel-ish-hid: ISH HID client driver 2016-08-17 11:13:08 +02:00
ioctl.h
ip6_tunnel.h
ip_vs.h
ip.h
ipc.h
ipmi_msgdefs.h
ipmi.h
ipsec.h
ipv6_route.h
ipv6.h ipv6 addrconf: Implemented enhanced DAD (RFC7527) 2016-12-03 23:21:37 -05:00
ipx.h include/uapi/linux/ipx.h: fix conflicting defitions with glibc netipx/ipx.h 2016-08-22 16:25:15 -07:00
irda.h
irqnr.h
isdn_divertif.h
isdn_ppp.h
isdn.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
ixjuser.h
jffs2.h
joystick.h
Kbuild media updates for v4.10-rc1 2016-12-16 09:39:16 -08:00
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
kfd_ioctl.h
kvm_para.h
kvm.h Small release, the most interesting stuff is x86 nested virt improvements. 2016-12-13 15:47:02 -08:00
l2tp.h net: l2tp: export debug flags to UAPI 2016-12-10 23:29:11 -05:00
libc-compat.h include/uapi/linux/ipx.h: fix conflicting defitions with glibc netipx/ipx.h 2016-08-22 16:25:15 -07:00
lightnvm.h
limits.h
lirc.h [media] lirc.h: remove several unused ioctls 2016-07-11 10:49:52 -03:00
llc.h
loop.h
lp.h
lwtunnel.h bpf: BPF for lightweight tunnel infrastructure 2016-12-02 10:51:49 -05:00
magic.h x86/intel_rdt: Add basic resctrl filesystem support 2016-10-30 19:10:14 -06:00
major.h docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
map_to_7segment.h
matroxfb.h
mdio.h
media-bus-format.h [media] media: Add 1X16 16-bit raw bayer media bus code definitions 2016-09-09 11:16:36 -03:00
media.h [media] v4l2-core: Add support for touch devices 2016-08-23 16:28:04 -03:00
mei.h
membarrier.h
memfd.h
mempolicy.h
meye.h
mic_common.h
mic_ioctl.h
mii.h net: Add mask for Control register 10Mbps speed 2016-08-12 16:57:20 -07:00
minix_fs.h
mman.h
mmtimer.h
module.h
mpls_iptunnel.h
mpls.h
mqueue.h
mroute6.h
mroute.h
msdos_fs.h
msg.h
mtio.h
n_r3964.h
nbd.h nbd: move multi-connection bit to unused value 2016-11-22 13:11:55 -07:00
ncp_fs.h
ncp_mount.h
ncp_no.h
ncp.h
ndctl.h libnvdimm: fix SMART Health DSM payload definition 2016-08-15 11:07:21 -07:00
neighbour.h
net_dropmon.h
net_namespace.h
net_tstamp.h tcp: SOF_TIMESTAMPING_OPT_STATS option for SO_TIMESTAMPING 2016-11-30 10:04:25 -05:00
net.h
netconf.h
netdevice.h
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netfilter.h netfilter: deprecate NF_STOP 2016-11-03 10:56:17 +01:00
netlink_diag.h
netlink.h
netrom.h
nfc.h
nfs2.h
nfs3.h
nfs4_mount.h
nfs4.h nfs: add a new NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK constant 2016-09-26 15:20:37 -04:00
nfs_fs.h
nfs_idmap.h
nfs_mount.h
nfs.h
nfsacl.h
nilfs2_api.h nilfs2: move ioctl interface and disk layout to uapi separately 2016-08-02 19:35:21 -04:00
nilfs2_ondisk.h nilfs2: move ioctl interface and disk layout to uapi separately 2016-08-02 19:35:21 -04:00
nl80211.h nl80211: Use different attrs for BSSID and random MAC addr in scan req 2016-12-09 12:47:19 +01:00
nsfs.h nsfs: Add an ioctl() to return owner UID of a userns 2017-02-03 14:35:43 +13:00
nubus.h
nvme_ioctl.h
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h openvswitch: add Ethernet push and pop actions 2016-11-13 00:51:02 -05:00
packet_diag.h
param.h
parport.h
patchkey.h
pci_regs.h PCI: Move config space size macros to pci_regs.h 2016-12-12 10:05:22 -06:00
pci.h
perf_event.h
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h net/sched: cls_flower: Support matching on ICMP type and code 2016-12-08 11:47:08 -05:00
pkt_sched.h net_sched: sch_fq: account for schedule/timers drifts 2016-09-23 07:19:06 -04:00
pktcdvd.h
pmu.h
poll.h
posix_acl_xattr.h posix_acl: uapi header split 2016-09-27 21:52:00 -04:00
posix_acl.h posix_acl: uapi header split 2016-09-27 21:52:00 -04:00
posix_types.h
ppdev.h
ppp_defs.h
ppp-comp.h
ppp-ioctl.h
pps.h
pr.h
prctl.h
psci.h
ptp_clock.h
ptrace.h
qnx4_fs.h
qnxtypes.h
qrtr.h
quota.h
radeonfb.h
random.h
raw.h
rds.h
reboot.h
reiserfs_fs.h
reiserfs_xattr.h
resource.h
rfkill.h
rio_cm_cdev.h rapidio: add RapidIO channelized messaging driver 2016-08-02 19:35:31 -04:00
rio_mport_cdev.h
romfs_fs.h
rose.h
route.h
rtc.h
rtnetlink.h net: core: add UID to flows, rules, and routes 2016-11-04 14:45:23 -04:00
scc.h
sched.h
scif_ioctl.h
screen_info.h
sctp.h sctp: Export struct sctp_info to userspace 2016-08-08 12:51:58 -07:00
sdla.h
seccomp.h
securebits.h
seg6_genl.h ipv6: sr: add code base for control plane support of SR-IPv6 2016-11-09 20:40:06 -05:00
seg6_hmac.h ipv6: sr: add core files for SR HMAC support 2016-11-09 20:40:06 -05:00
seg6_iptunnel.h ipv6: sr: add support for SRH encapsulation and injection with lwtunnels 2016-11-09 20:40:06 -05:00
seg6.h ipv6: implement dataplane support for rthdr type 4 (Segment Routing Header) 2016-11-09 20:40:06 -05:00
selinux_netlink.h
sem.h
serial_core.h
serial_reg.h serial: 8250: Set Altera 16550 TX FIFO Threshold 2016-09-27 12:55:50 +02:00
serial.h
serio.h [media] input: serio - add new protocol for the Pulse-Eight USB-CEC Adapter 2016-07-12 13:42:10 -03:00
shm.h
signal.h
signalfd.h
smiapp.h
snmp.h tcp: md5: add LINUX_MIB_TCPMD5FAILURE counter 2016-08-25 16:43:11 -07:00
sock_diag.h
socket.h
sockios.h driver: tun: Use new macro SOCK_IOC_TYPE instead of literal number 0x89 2016-10-31 10:56:47 -04:00
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
stm.h
string.h
suspend_ioctls.h
swab.h
sync_file.h dma-buf/sync_file: fix documentation error 2016-09-20 18:12:38 +05:30
synclink.h
sysctl.h uapi: move forward declarations of internal structures 2016-08-02 17:31:41 -04:00
sysinfo.h
target_core_user.h
taskstats.h
tcp_metrics.h
tcp.h tcp: SOF_TIMESTAMPING_OPT_STATS option for SO_TIMESTAMPING 2016-11-30 10:04:25 -05:00
telephony.h
termios.h
thermal.h
time.h
times.h
timex.h
tiocl.h
tipc_config.h
tipc_netlink.h tipc: add the ability to get UDP options via netlink 2016-08-26 21:38:41 -07:00
tipc.h tipc: introduce constants for tipc address validation 2016-07-26 14:26:42 -07:00
toshiba.h
tty_flags.h
tty.h
types.h linux/types.h: enable endian checks for all sparse builds 2016-12-16 00:13:39 +02:00
udf_fs_i.h
udp.h
uhid.h
uinput.h
uio.h
uleds.h leds: Introduce userspace LED class driver 2016-11-22 12:07:02 +01:00
ultrasound.h
un.h
unistd.h
unix_diag.h
usbdevice_fs.h
usbip.h
userfaultfd.h
userio.h
utime.h
utsname.h
uuid.h
uvcvideo.h
v4l2-common.h
v4l2-controls.h [media] v4l: ctrls: Add deinterlacing mode control 2016-11-16 16:16:08 -02:00
v4l2-dv-timings.h [media] v4l2-dv-timings: add VICs and picture aspect ratio 2016-11-16 15:13:18 -02:00
v4l2-mediabus.h
v4l2-subdev.h
veth.h
vfio.h vfio: Define device_api strings 2016-11-17 08:33:20 -07:00
vhost.h vhost: remove unused feature bit 2016-12-16 00:13:38 +02:00
videodev2.h [media] v4l: Add 16-bit raw bayer pixel formats 2016-11-23 20:04:22 -02:00
virtio_9p.h
virtio_balloon.h
virtio_blk.h
virtio_config.h virtio: new feature to detect IOMMU device quirk 2016-08-01 21:44:52 +03:00
virtio_console.h
virtio_crypto.h crypto: add virtio-crypto driver 2016-12-16 00:13:32 +02:00
virtio_gpu.h
virtio_ids.h crypto: add virtio-crypto driver 2016-12-16 00:13:32 +02:00
virtio_input.h
virtio_net.h
virtio_pci.h
virtio_ring.h
virtio_rng.h
virtio_scsi.h
virtio_types.h linux: drop __bitwise__ everywhere 2016-12-16 00:13:41 +02:00
virtio_vsock.h virtio-vsock: fix include guard typo 2016-08-09 13:42:38 +03:00
vm_sockets.h
vt.h
vtpm_proxy.h tpm, tpm_vtpm_proxy: add kdoc comments for VTPM_PROXY_IOC_NEW_DEV 2016-11-28 01:31:31 +02:00
wait.h
wanrouter.h
watchdog.h
wil6210_uapi.h
wimax.h
wireless.h
x25.h
xattr.h
xfrm.h xfrm: fix header file comment reference to struct xfrm_replay_state_esn 2016-09-09 09:10:07 +02:00
xilinx-v4l2-controls.h
zorro_ids.h
zorro.h