superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
mirror-linux/include/uapi/linux
History
Jakub Sitnicki 91d0b78c51 inet: Add IP_LOCAL_PORT_RANGE socket option 
Users who want to share a single public IP address for outgoing connections
between several hosts traditionally reach for SNAT. However, SNAT requires
state keeping on the node(s) performing the NAT.

A stateless alternative exists, where a single IP address used for egress
can be shared between several hosts by partitioning the available ephemeral
port range. In such a setup:

1. Each host gets assigned a disjoint range of ephemeral ports.
2. Applications open connections from the host-assigned port range.
3. Return traffic gets routed to the host based on both, the destination IP
   and the destination port.

An application which wants to open an outgoing connection (connect) from a
given port range today can choose between two solutions:

1. Manually pick the source port by bind()'ing to it before connect()'ing
   the socket.

   This approach has a couple of downsides:

   a) Search for a free port has to be implemented in the user-space. If
      the chosen 4-tuple happens to be busy, the application needs to retry
      from a different local port number.

      Detecting if 4-tuple is busy can be either easy (TCP) or hard
      (UDP). In TCP case, the application simply has to check if connect()
      returned an error (EADDRNOTAVAIL). That is assuming that the local
      port sharing was enabled (REUSEADDR) by all the sockets.

        # Assume desired local port range is 60_000-60_511
        s = socket(AF_INET, SOCK_STREAM)
        s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
        s.bind(("192.0.2.1", 60_000))
        s.connect(("1.1.1.1", 53))
        # Fails only if 192.0.2.1:60000 -> 1.1.1.1:53 is busy
        # Application must retry with another local port

      In case of UDP, the network stack allows binding more than one socket
      to the same 4-tuple, when local port sharing is enabled
      (REUSEADDR). Hence detecting the conflict is much harder and involves
      querying sock_diag and toggling the REUSEADDR flag [1].

   b) For TCP, bind()-ing to a port within the ephemeral port range means
      that no connecting sockets, that is those which leave it to the
      network stack to find a free local port at connect() time, can use
      the this port.

      IOW, the bind hash bucket tb->fastreuse will be 0 or 1, and the port
      will be skipped during the free port search at connect() time.

2. Isolate the app in a dedicated netns and use the use the per-netns
   ip_local_port_range sysctl to adjust the ephemeral port range bounds.

   The per-netns setting affects all sockets, so this approach can be used
   only if:

   - there is just one egress IP address, or
   - the desired egress port range is the same for all egress IP addresses
     used by the application.

   For TCP, this approach avoids the downsides of (1). Free port search and
   4-tuple conflict detection is done by the network stack:

     system("sysctl -w net.ipv4.ip_local_port_range='60000 60511'")

     s = socket(AF_INET, SOCK_STREAM)
     s.setsockopt(SOL_IP, IP_BIND_ADDRESS_NO_PORT, 1)
     s.bind(("192.0.2.1", 0))
     s.connect(("1.1.1.1", 53))
     # Fails if all 4-tuples 192.0.2.1:60000-60511 -> 1.1.1.1:53 are busy

  For UDP this approach has limited applicability. Setting the
  IP_BIND_ADDRESS_NO_PORT socket option does not result in local source
  port being shared with other connected UDP sockets.

  Hence relying on the network stack to find a free source port, limits the
  number of outgoing UDP flows from a single IP address down to the number
  of available ephemeral ports.

To put it another way, partitioning the ephemeral port range between hosts
using the existing Linux networking API is cumbersome.

To address this use case, add a new socket option at the SOL_IP level,
named IP_LOCAL_PORT_RANGE. The new option can be used to clamp down the
ephemeral port range for each socket individually.

The option can be used only to narrow down the per-netns local port
range. If the per-socket range lies outside of the per-netns range, the
latter takes precedence.

UAPI-wise, the low and high range bounds are passed to the kernel as a pair
of u16 values in host byte order packed into a u32. This avoids pointer
passing.

  PORT_LO = 40_000
  PORT_HI = 40_511

  s = socket(AF_INET, SOCK_STREAM)
  v = struct.pack("I", PORT_HI << 16 | PORT_LO)
  s.setsockopt(SOL_IP, IP_LOCAL_PORT_RANGE, v)
  s.bind(("127.0.0.1", 0))
  s.getsockname()
  # Local address between ("127.0.0.1", 40_000) and ("127.0.0.1", 40_511),
  # if there is a free port. EADDRINUSE otherwise.

[1] https://github.com/cloudflare/cloudflare-blog/blob/232b432c1d57/2022-02-connectx/connectx.py#L116

Reviewed-by: Marek Majkowski <marek@cloudflare.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2023-01-25 22:45:00 -08:00
..
android Binder: add TF_UPDATE_TXN to replace outdated txn 2022-06-27 16:16:30 +02:00
byteorder uapi: Fix undefined __always_inline on non-glibc systems 2021-12-21 15:09:46 -08:00
caif
…
can can: raw: add CAN XL support 2022-09-15 09:08:09 +02:00
cifs cifs: remove pathname for file from SPDX header 2021-09-13 14:51:10 -05:00
dvb Merge tag 'br-v6.2i' of git://linuxtv.org/hverkuil/media_tree into media_stage 2022-12-07 17:58:47 +01:00
genwqe
…
hdlc
…
hsi headers: Remove some left-over license text in include/uapi/linux/hsi/ 2022-11-17 22:49:39 +01:00
iio iio: add modifers for pitch, yaw, roll 2022-09-21 18:42:55 +01:00
isdn
…
misc
…
mmc treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
netfilter netfilter: nf_tables: add support to destroy operation 2023-01-18 13:09:00 +01:00
netfilter_arp treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
netfilter_bridge treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
netfilter_ipv4 treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
netfilter_ipv6 netfilter: ip6t_LOG: Fix a typo in a comment 2022-08-09 19:51:05 +02:00
nfsd NFSD: move filehandle format declarations out of "uapi". 2021-10-02 15:50:45 -04:00
raid treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
sched
…
spi spi: add SPI_RX_CPHA_FLIP mode bit 2022-04-19 13:13:47 +01:00
sunrpc
…
surface_aggregator
…
tc_act net: sched: add helper support in act_ct 2022-11-08 12:15:19 +01:00
tc_ematch
…
usb usb: gadget: uvc: Rename bmInterfaceFlags -> bmInterlaceFlags 2022-12-08 16:53:47 +01:00
a.out.h
…
acct.h taskstats: version 12 with thread group and exe info 2022-04-29 14:38:03 -07:00
acrn.h virt: acrn: Mark the uuid field as unused 2022-11-23 19:55:22 +01:00
adb.h
…
adfs_fs.h
…
affs_hardblocks.h
…
agpgart.h agpgart.h: do not include <stdlib.h> from exported header 2022-05-13 10:56:10 +02:00
aio_abi.h
…
am437x-vpfe.h
…
amt.h amt: add control plane of amt interface 2021-11-01 13:36:08 +00:00
apm_bios.h
…
arcfb.h
…
arm_sdei.h
…
aspeed-lpc-ctrl.h
…
aspeed-p2a-ctrl.h
…
aspeed-video.h media: aspeed: Support aspeed mode to reduce compressed data 2022-11-04 16:56:41 +01:00
atalk.h
…
atm.h
…
atm_eni.h
…
atm_he.h
…
atm_idt77105.h
…
atm_nicstar.h
…
atm_tcp.h
…
atm_zatm.h net: atm: bring back zatm uAPI 2022-08-11 10:31:19 -07:00
atmapi.h
…
atmarp.h
…
atmbr2684.h atm: uapi: fix spelling typos in comments 2022-12-22 18:18:37 -08:00
atmclip.h
…
atmdev.h
…
atmioc.h
…
atmlec.h
…
atmmpc.h
…
atmppp.h
…
atmsap.h
…
atmsvc.h
…
audit.h audit: fix undefined behavior in bit shift for AUDIT_BIT 2022-10-31 07:29:47 -04:00
auto_dev-ioctl.h
…
auto_fs.h
…
auto_fs4.h
…
auxvec.h
…
ax25.h
…
batadv_packet.h
…
batman_adv.h
…
baycom.h
…
bcm933xx_hcs.h
…
bfs_fs.h
…
binfmts.h
…
blkpg.h
…
blktrace_api.h
…
blkzoned.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
bpf.h bpf: Add flag BPF_F_NO_TUNNEL_KEY to bpf_skb_set_tunnel_key() 2022-12-19 23:53:15 +01:00
bpf_common.h
…
bpf_perf_event.h
…
bpfilter.h
…
bpqether.h
…
bsg.h
…
bt-bmc.h
…
btf.h bpf: Add btf enum64 support 2022-06-07 10:20:42 -07:00
btrfs.h btrfs: sync some cleanups from progs into uapi/btrfs.h 2022-12-05 18:00:59 +01:00
btrfs_tree.h btrfs: add nr_global_roots to the super block definition 2022-12-05 18:00:58 +01:00
cachefiles.h cachefiles: implement on-demand read 2022-05-18 00:11:18 +08:00
can.h can: canxl: introduce CAN XL data structure 2022-09-15 09:08:09 +02:00
capability.h capabilities: fix undefined behavior in bit shift for CAP_TO_MASK 2022-11-05 01:25:57 -04:00
capi.h
…
cciss_defs.h
…
cciss_ioctl.h
…
ccs.h
…
cdrom.h cdrom: mark CDROMGETSPINDOWN/CDROMSETSPINDOWN obsolete 2022-05-15 18:31:28 -06:00
cec-funcs.h media: cec: add support for Absolute Volume Control 2022-09-24 08:50:04 +02:00
cec.h media: cec: add support for Absolute Volume Control 2022-09-24 08:50:04 +02:00
cfm_bridge.h
…
cgroupstats.h
…
chio.h
…
close_range.h
…
cm4000_cs.h
…
cn_proc.h
…
coda.h
…
coff.h
…
comedi.h comedi: Move the main COMEDI headers 2021-11-26 16:48:59 +01:00
connector.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
const.h
…
coresight-stm.h
…
counter.h counter: Introduce the Count capture component 2022-09-30 14:32:35 +02:00
cramfs_fs.h
…
cryptouser.h
…
cuda.h
…
cxl_mem.h cxl/security: Drop security command ioctl uapi 2022-12-06 14:36:02 -08:00
cyclades.h tty: Partially revert the removal of the Cyclades public API 2022-01-26 14:49:46 +01:00
cycx_cfm.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
dcbnl.h net: dcb: add new rewrite table 2023-01-20 09:33:22 +00:00
dccp.h
…
devlink.h devlink: Expose port function commands to control migratable 2022-12-07 20:09:18 -08:00
dlm.h fs: dlm: remove DLM_LSFL_FS from uapi 2022-08-23 14:54:54 -05:00
dlm_device.h treewide: Replace 0-element memcpy() destinations with flexible arrays 2021-10-18 12:28:53 -07:00
dlm_netlink.h
…
dlm_plock.h
…
dlmconstants.h
…
dm-ioctl.h flexible-array transformations in UAPI for 6.0-rc1 2022-08-02 19:50:47 -07:00
dm-log-userspace.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
dma-buf.h Merge drm/drm-next into drm-misc-next 2022-06-20 18:21:25 +02:00
dma-heap.h
…
dns_resolver.h
…
dqblk_xfs.h
…
dw100.h media: uapi: Add a control for DW100 driver 2022-08-29 15:32:13 +02:00
edd.h
…
efs_fs_sb.h
…
elf-em.h LoongArch: Add ELF-related definitions 2022-06-03 20:09:27 +08:00
elf-fdpic.h
…
elf.h binfmt: Fix whitespace issues 2022-10-25 15:17:23 -07:00
errno.h
…
errqueue.h
…
erspan.h
…
ethtool.h net: ethtool: netlink: retrieve stats from multiple sources (eMAC, pMAC) 2023-01-23 12:44:18 +00:00
ethtool_netlink.h net: ethtool: netlink: retrieve stats from multiple sources (eMAC, pMAC) 2023-01-23 12:44:18 +00:00
eventpoll.h eventpoll: add EPOLL_URING_WAKE poll wakeup flag 2022-11-21 07:45:29 -07:00
f2fs.h f2fs: introduce F2FS_IOC_START_ATOMIC_REPLACE 2022-11-28 12:46:23 -08:00
fadvise.h
…
falloc.h
…
fanotify.h flexible-array transformations in UAPI for 6.0-rc1 2022-08-02 19:50:47 -07:00
fb.h linux/fb.h: Spelling s/palette/palette/ 2022-04-04 08:55:23 +02:00
fcntl.h
…
fd.h
…
fdreg.h
…
fib_rules.h
…
fiemap.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
filter.h
…
firewire-cdev.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
firewire-constants.h
…
fou.h net: fou: regenerate the uAPI from the spec 2023-01-24 10:58:11 +01:00
fpga-dfl.h
…
fs.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
fscrypt.h fscrypt: remove unused Speck definitions 2022-12-01 19:58:50 -08:00
fsi.h fsi: sbefifo: Implement FSI_SBEFIFO_READ_TIMEOUT_SECONDS ioctl 2022-02-21 19:38:17 +10:30
fsl_hypervisor.h
…
fsl_mc.h
…
fsmap.h fsmap.h: add linux/fsmap.h to UAPI compile-test coverage 2022-02-17 09:09:37 +01:00
fsverity.h
…
fuse.h fuse: allow non-extending parallel direct writes on the same file 2022-11-23 09:10:50 +01:00
futex.h futex: Implement sys_futex_waitv() 2021-10-07 13:51:11 +02:00
gameport.h
…
gen_stats.h
…
genetlink.h genetlink: correct uAPI defines 2022-08-10 13:49:50 +01:00
gfs2_ondisk.h
…
gpio.h gpiolib: cdev: Add hardware timestamp clock type 2022-05-04 11:06:13 +02:00
gsmmux.h
…
gtp.h gtp: Implement GTP echo request 2022-03-11 08:28:05 -08:00
hash_info.h
…
hdlc.h
…
hdlcdrv.h
…
hdreg.h
…
hid.h HID: convert defines of HID class requests into a proper enum 2022-09-20 11:53:32 +01:00
hiddev.h
…
hidraw.h
…
hpet.h
…
hsr_netlink.h
…
hw_breakpoint.h
…
hyperv.h hv_utils: Add comment about max VMbus packet size in VSS driver 2022-02-18 13:08:18 +00:00
i2c-dev.h Revert "Merge branch 'mctp-i2c-driver'" 2021-11-15 07:53:10 -08:00
i2c.h Revert "Merge branch 'mctp-i2c-driver'" 2021-11-15 07:53:10 -08:00
i2o-dev.h
…
i8k.h
…
icmp.h
…
icmpv6.h
…
idxd.h dmaengine: idxd: Fix crc_val field for completion record 2022-11-14 03:56:37 +05:30
if.h
…
if_addr.h net: Add new protocol attribute to IP addresses 2022-02-18 21:20:06 -08:00
if_addrlabel.h
…
if_alg.h crypto: af_alg - Support symmetric encryption via keyring keys 2022-10-28 12:36:34 +08:00
if_arcnet.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
if_arp.h mctp: Add initial driver infrastructure 2021-07-29 15:06:50 +01:00
if_bonding.h
…
if_bridge.h bridge: mcast: Allow user space to specify MDB entry routing protocol 2022-12-12 15:33:37 -08:00
if_cablemodem.h
…
if_eql.h
…
if_ether.h can: canxl: update CAN infrastructure for CAN XL frames 2022-09-15 09:08:09 +02:00
if_fc.h
…
if_fddi.h
…
if_hippi.h
…
if_infiniband.h
…
if_link.h net: expose devlink port over rtnetlink 2022-11-03 20:48:37 -07:00
if_ltalk.h
…
if_macsec.h net: macsec: Expose MACSEC_SALT_LEN definition to user space 2022-08-18 20:37:35 -07:00
if_packet.h net/packet: add PACKET_FANOUT_FLAG_IGNORE_OUTGOING 2022-10-28 22:00:49 -07:00
if_phonet.h
…
if_plip.h
…
if_ppp.h
…
if_pppol2tp.h
…
if_pppox.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
if_slip.h
…
if_team.h
…
if_tun.h uapi/linux/if_tun.h: Added new offload types for USO4/6. 2022-12-12 09:29:56 +00:00
if_tunnel.h net/sched: Allow flower to match on GTP options 2022-03-11 08:28:27 -08:00
if_vlan.h
…
if_x25.h
…
if_xdp.h
…
ife.h
…
igmp.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
ila.h
…
in.h inet: Add IP_LOCAL_PORT_RANGE socket option 2023-01-25 22:45:00 -08:00
in6.h ipv6: ioam: Data plane support for Pre-allocated Trace 2021-07-21 08:14:33 -07:00
in_route.h
…
inet_diag.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
inotify.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
input-event-codes.h HID: add mapping for camera access keys 2022-11-22 17:50:36 -08:00
input.h Input updates for v5.19-rc6 2022-07-17 07:52:46 -07:00
io_uring.h uapi:io_uring.h: allow linux/time_types.h to be skipped 2022-12-27 07:32:51 -07:00
ioam6.h ipv6: ioam: Replace 0-length array with flexible array 2023-01-06 19:22:53 -08:00
ioam6_genl.h ipv6: ioam: IOAM Generic Netlink API 2021-07-21 08:14:33 -07:00
ioam6_iptunnel.h uapi: ioam: Insertion frequency 2022-02-04 20:24:45 -08:00
ioctl.h
…
iommu.h iommu: Remove guest pasid related interfaces and definitions 2022-02-28 13:25:48 +01:00
iommufd.h iommufd: vfio container FD ioctl compatibility 2022-11-30 20:16:49 -04:00
ioprio.h block: fix default IO priority handling 2021-08-18 07:23:15 -06:00
ip.h net: use struct_group to copy ip/ipv6 header addresses 2022-11-17 10:42:45 +01:00
ip6_tunnel.h
…
ip_vs.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
ipc.h
…
ipmi.h ipmi: Add support for IPMB direct messages 2021-10-05 06:54:16 -05:00
ipmi_bmc.h
…
ipmi_msgdefs.h
…
ipmi_ssif_bmc.h ipmi: ssif_bmc: Add SSIF BMC driver 2022-10-17 09:51:26 -05:00
ipsec.h
…
ipv6.h net: use struct_group to copy ip/ipv6 header addresses 2022-11-17 10:42:45 +01:00
ipv6_route.h
…
irqnr.h
…
iso_fs.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
isst_if.h
…
ivtv.h
…
ivtvfb.h
…
jffs2.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
joystick.h
…
kcm.h
…
kcmp.h
…
kcov.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
kd.h
…
kdev_t.h
…
kernel-page-flags.h
…
kernel.h
…
kernelcapi.h
…
kexec.h LoongArch: Add ELF-related definitions 2022-06-03 20:09:27 +08:00
keyboard.h
…
keyctl.h
…
kfd_ioctl.h drm/amdkfd: bump KFD version for unified ctx save/restore memory 2022-07-12 16:50:44 -04:00
kfd_sysfs.h drm/amdkfd: make SPDX License expression more sound 2022-01-11 15:44:27 -05:00
kvm.h KVM: x86/xen: Add KVM_XEN_INVALID_GPA and KVM_XEN_INVALID_GFN to uapi 2022-12-27 06:01:49 -05:00
kvm_para.h
…
l2tp.h uapi: move IPPROTO_L2TP to in.h 2022-09-20 09:13:38 +02:00
landlock.h landlock: Support file truncation 2022-10-19 09:01:44 +02:00
libc-compat.h
…
limits.h
…
lirc.h media: lirc: revert removal of unused feature flags 2022-05-25 09:51:36 -07:00
llc.h
…
loadpin.h LoadPin: Enable loading from trusted dm-verity devices 2022-07-08 10:46:53 -07:00
loop.h loop: remove most the top-of-file boilerplate comment from the UAPI header 2022-05-10 06:30:05 -06:00
lp.h
…
lwtunnel.h xfrm: lwtunnel: add lwtunnel support for xfrm interfaces in collect_md mode 2022-08-29 10:44:08 +02:00
magic.h mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
major.h
…
map_to_7segment.h
…
map_to_14segment.h uapi: Add <linux/map_to_14segment.h> 2021-10-21 23:36:28 +02:00
matroxfb.h
…
max2175.h
…
mctp.h mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control 2022-02-09 12:00:11 +00:00
mdio.h net: phy: Add 10BASE-T1L support in phy-c45 2022-05-01 17:45:35 +01:00
media-bus-format.h media: v4l: Add 1X16 16-bit greyscale media bus code definition 2022-10-25 14:38:31 +03:00
media.h media: media.h: remove unneeded <stdint.h> inclusion 2022-04-24 08:27:37 +01:00
mei.h
…
membarrier.h
…
memfd.h
…
mempolicy.h mm/mempolicy: add MPOL_PREFERRED_MANY for multiple preferred nodes 2021-09-03 09:58:17 -07:00
meye.h
…
mii.h
…
minix_fs.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
mman.h
…
mmtimer.h
…
module.h module: add in-kernel support for decompressing 2022-01-11 18:45:02 -08:00
mount.h move_mount: allow to add a mount into an existing group 2021-07-26 14:45:18 +02:00
mpls.h
…
mpls_iptunnel.h
…
mptcp.h mptcp: add pm listener events 2022-12-01 20:06:06 -08:00
mqueue.h
…
mroute.h
…
mroute6.h net: ip6mr: add support for passing full packet on wrong mif 2022-02-19 16:05:54 +00:00
mrp_bridge.h
…
msdos_fs.h
…
msg.h
…
mtio.h
…
nbd-netlink.h nbd: provide a way for userspace processes to identify device backends 2021-06-30 15:34:04 -06:00
nbd.h
…
ncsi.h
…
ndctl.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
neighbour.h bridge: Add MAC Authentication Bypass (MAB) support 2022-11-03 20:46:32 -07:00
net.h Revert "net: add pf_family_names[] for protocol family" 2021-06-18 13:02:45 -07:00
net_dropmon.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
net_namespace.h
…
net_tstamp.h net_tstamp: add SOF_TIMESTAMPING_OPT_ID_TCP 2022-12-08 19:49:21 -08:00
netconf.h
…
netdevice.h
…
netfilter.h netfilter: remove NFPROTO_DECNET 2022-09-07 16:46:03 +02:00
netfilter_arp.h
…
netfilter_bridge.h
…
netfilter_ipv4.h
…
netfilter_ipv6.h
…
netlink.h netlink: remove the flex array from struct nlmsghdr 2022-11-18 18:36:54 -08:00
netlink_diag.h
…
netrom.h
…
nexthop.h
…
nfc.h nfc: uapi: use kernel size_t to fix user-space builds 2021-12-27 14:58:37 +00:00
nfs.h
…
nfs2.h
…
nfs3.h
…
nfs4.h NFSv4.1 support for NFS4_RESULT_PRESERVER_UNLINKED 2022-02-25 18:50:12 -05:00
nfs4_mount.h
…
nfs_fs.h NFS: Remove remaining dfprintks related to fscache and remove NFSDBG_FSCACHE 2022-03-13 12:59:35 -04:00
nfs_idmap.h
…
nfs_mount.h
…
nfsacl.h
…
nilfs2_api.h
…
nilfs2_ondisk.h
…
nitro_enclaves.h nitro_enclaves: Add fixes for checkpatch spell check reports 2021-09-14 11:11:20 +02:00
nl80211-vnd-intel.h nl80211: vendor-cmd: intel: add more details for IWL_MVM_VENDOR_CMD_HOST_GET_OWNERSHIP 2021-10-21 17:25:17 +02:00
nl80211.h wifi: cfg80211: Use MLD address to indicate MLD STA disconnection 2023-01-18 17:31:50 +01:00
nsfs.h
…
nubus.h
…
nvme_ioctl.h nvme: enable uring-passthrough for admin commands 2022-05-20 06:17:33 -06:00
nvram.h
…
omap3isp.h media: omap3isp: Use struct_group() for memcpy() region 2022-02-27 10:58:04 -08:00
omapfb.h
…
oom.h
…
openat2.h
…
openvswitch.h net: openvswitch: Add support to count upcall packets 2022-12-09 10:43:46 +00:00
packet_diag.h
…
param.h
…
parport.h
…
patchkey.h
…
pci.h
…
pci_regs.h pci-v6.2-changes 2022-12-14 09:54:10 -08:00
pcitest.h PCI: Fix kernel-doc formatting 2021-07-06 10:37:46 -05:00
perf_event.h perf/mem: Rename PERF_MEM_LVLNUM_EXTN_MEM to PERF_MEM_LVLNUM_CXL 2022-10-27 10:27:32 +02:00
personality.h
…
pfkeyv2.h xfrm: Add support for SM4 symmetric cipher algorithm 2021-12-23 09:32:51 +01:00
pfrut.h ACPI: Introduce Platform Firmware Runtime Telemetry driver 2021-12-27 17:12:58 +01:00
pg.h
…
phantom.h
…
phonet.h
…
pidfd.h
…
pkt_cls.h net/sched: flower: Add L2TPv3 filter 2022-09-20 09:13:38 +02:00
pkt_sched.h net/sched: taprio: allow user input of per-tc max SDU 2022-09-29 18:52:05 -07:00
pktcdvd.h Revert "pktcdvd: remove driver." 2023-01-04 14:44:13 -07:00
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 block: Add error codes for common PR failures 2022-12-01 03:22:20 +00:00
prctl.h arm64/sme: Implement vector length configuration prctl()s 2022-04-22 18:50:54 +01:00
psample.h
…
psci.h firmware/psci: Fix MEM_PROTECT_RANGE function numbers 2023-01-06 17:12:39 +00:00
psp-sev.h
…
ptp_clock.h
…
ptrace.h ptrace: Move setting/clearing ptrace_message into ptrace_stop 2022-03-18 09:44:19 -05:00
qemu_fw_cfg.h
…
qnx4_fs.h
…
qnxtypes.h
…
qrtr.h
…
quota.h
…
radeonfb.h
…
random.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
rds.h
…
reboot.h
…
reiserfs_fs.h
…
reiserfs_xattr.h reiserfs_xattr.h: add linux/reiserfs_xattr.h to UAPI compile-test coverage 2022-02-17 09:09:38 +01:00
remoteproc_cdev.h
…
resource.h Increase default MLOCK_LIMIT to 8 MiB 2021-12-10 17:10:55 -08:00
rfkill.h rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition 2022-05-09 14:00:07 +02:00
rio_cm_cdev.h
…
rio_mport_cdev.h
…
rkisp1-config.h media: rockchip: rkisp1: Define macros for DPCC configurations in UAPI 2022-09-24 08:31:54 +02:00
romfs_fs.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
rose.h
…
route.h
…
rpl.h net: ipv6: rpl_iptunnel: Replace 0-length arrays with flexible arrays 2023-01-06 19:28:01 -08:00
rpl_iptunnel.h
…
rpmsg.h rpmsg: ctrl: Introduce new RPMSG_CREATE/RELEASE_DEV_IOCTL controls 2022-03-13 11:49:53 -05:00
rpmsg_types.h
…
rseq.h rseq: Remove broken uapi field layout on 32-bit little endian 2022-02-02 13:11:34 +01:00
rtc.h rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature 2022-03-23 19:58:40 +01:00
rtnetlink.h sched: add new attr TCA_EXT_WARN_MSG to report tc extact message 2023-01-17 09:38:33 +01:00
rxrpc.h
…
scc.h
…
sched.h
…
scif_ioctl.h
…
screen_info.h
…
sctp.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
seccomp.h seccomp: Add wait_killable semantic to seccomp user notifier 2022-05-03 14:11:58 -07:00
securebits.h
…
sed-opal.h sed-opal: allow using IOC_OPAL_SAVE for locking too 2022-12-08 09:17:45 -07:00
seg6.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
seg6_genl.h
…
seg6_hmac.h
…
seg6_iptunnel.h Networking changes for 6.0. 2022-08-03 16:29:08 -07:00
seg6_local.h seg6: add NEXT-C-SID support for SRv6 End behavior 2022-09-20 12:33:22 +02:00
selinux_netlink.h
…
sem.h
…
serial.h serial: Convert serial_rs485 to kernel doc 2022-11-03 03:43:05 +01:00
serial_core.h serial: remove VR41XX serial driver 2022-07-16 08:16:01 +02:00
serial_reg.h serial: Use bits for UART_LSR_BRK_ERROR_BITS/MSR_ANY_DELTA 2022-06-27 14:41:31 +02:00
serio.h
…
sev-guest.h virt: sevguest: Add support to get extended report 2022-04-07 16:47:12 +02:00
shm.h
…
signal.h
…
signalfd.h
…
smc.h net/smc: Extend SMC-R link group netlink attribute 2022-07-18 11:19:17 +01:00
smc_diag.h Partially revert "net/smc: Add netlink net namespace support" 2022-02-02 07:42:41 -08:00
smiapp.h
…
snmp.h tcp: add u32 counter in tcp_sock and an SNMP counter for PLB 2022-10-28 10:47:42 +01:00
sock_diag.h
…
socket.h socket: Don't use u8 type in uapi socket.h 2022-06-01 16:48:05 -07:00
sockios.h
…
sonet.h
…
sonypi.h
…
sound.h
…
soundcard.h kbuild: move headers_check.pl to usr/include/ 2022-01-08 17:41:00 +09:00
stat.h statx: add direct I/O alignment information 2022-09-11 19:47:04 -05:00
stddef.h uapi/linux/stddef.h: Add include guards 2022-03-31 13:04:44 -07:00
stm.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
string.h
…
suspend_ioctls.h
…
swab.h include/uapi/linux/swab: Fix potentially missing __always_inline 2022-11-09 14:06:51 +01:00
switchtec_ioctl.h
…
sync_file.h
…
synclink.h
…
sysctl.h net, neigh: introduce interval_probe_time_ms for periodic probe 2022-06-30 13:14:35 +02:00
sysinfo.h
…
target_core_user.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
taskstats.h delayacct: track delays from write-protect copy 2022-06-01 15:55:25 -07:00
tcp.h tcp: add rcv_wnd and plb_rehash to TCP_INFO 2022-10-28 10:47:42 +01:00
tcp_metrics.h
…
tdx-guest.h virt: Add TDX guest driver 2022-11-17 11:04:23 -08:00
tee.h tee: remove flags TEE_IOCTL_SHM_MAPPED and TEE_IOCTL_SHM_DMA_BUF 2022-04-26 10:17:03 +02:00
termios.h
…
thermal.h thermal: netlink: Add a new event to notify CPU capabilities change 2022-02-03 19:50:49 +01:00
time.h
…
time_types.h
…
timerfd.h
…
times.h
…
timex.h
…
tiocl.h
…
tipc.h
…
tipc_config.h net, uapi: remove inclusion of arpa/inet.h 2022-04-06 13:48:02 +01:00
tipc_netlink.h
…
tipc_sockets_diag.h
…
tls.h net: tls: Add ARIA-GCM algorithm 2022-09-27 17:29:09 -07:00
toshiba.h
…
tty.h tty: Add N_CAN327 line discipline ID for ELM327 based CAN driver 2022-06-27 16:25:41 +02:00
tty_flags.h
…
types.h linux/types.h: reinstate "__bitwise__" macro for user space use 2022-05-25 10:08:59 -07:00
ublk_cmd.h ublk_drv: add START_USER_RECOVERY and END_USER_RECOVERY support 2022-09-23 19:09:56 -06:00
udf_fs_i.h
…
udmabuf.h
…
udp.h
…
uhid.h
…
uinput.h
…
uio.h
…
uleds.h
…
ultrasound.h
…
um_timetravel.h
…
un.h
…
unistd.h
…
unix_diag.h
…
usbdevice_fs.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
usbip.h usbip: add USBIP_URB_* URB transfer flags 2022-08-31 09:07:53 +02:00
userfaultfd.h userfaultfd: add /dev/userfaultfd for fine grained access control 2022-09-11 20:25:48 -07:00
userio.h
…
utime.h
…
utsname.h
…
uuid.h uuid: remove licence boilerplate text from the header 2022-01-20 08:52:54 +02:00
uvcvideo.h
…
v4l2-common.h headers: Remove some left-over license text in include/uapi/linux/v4l2-* 2022-12-07 17:58:46 +01:00
v4l2-controls.h headers: Remove some left-over license text in include/uapi/linux/v4l2-* 2022-12-07 17:58:46 +01:00
v4l2-dv-timings.h headers: Remove some left-over license text in include/uapi/linux/v4l2-* 2022-12-07 17:58:46 +01:00
v4l2-mediabus.h headers: Remove some left-over license text in include/uapi/linux/v4l2-* 2022-12-07 17:58:46 +01:00
v4l2-subdev.h headers: Remove some left-over license text in include/uapi/linux/v4l2-* 2022-12-07 17:58:46 +01:00
vbox_err.h
…
vbox_vmmdev_types.h
…
vboxguest.h
…
vdpa.h vdpa: merge functionally duplicated dev_features attributes 2022-12-28 05:09:46 -05:00
vduse.h vduse: Support querying information of IOVA regions 2022-08-11 04:26:08 -04:00
veth.h
…
vfio.h vfio: Extend the device migration protocol with PRE_COPY 2022-12-06 12:36:43 -07:00
vfio_ccw.h
…
vfio_zdev.h vfio-pci/zdev: different maxstbl for interpreted devices 2022-07-11 09:54:37 +02:00
vhost.h vhost-vdpa: uAPI to suspend the device 2022-08-11 04:31:15 -04:00
vhost_types.h virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
videodev2.h media: add nv12_8l128 and nv12_10be_8l128 video format. 2022-11-25 11:01:29 +00:00
virtio_9p.h treewide: uapi: Replace zero-length arrays with flexible-array members 2022-06-28 21:26:05 +02:00
virtio_balloon.h
…
virtio_blk.h virtio_blk: add SECURE ERASE command support 2022-10-07 09:32:41 -04:00
virtio_bt.h virtio_bt: Fix alignment in configuration struct 2022-12-12 14:19:23 -08:00
virtio_config.h virtio: queue_reset: add VIRTIO_F_RING_RESET 2022-08-11 04:06:40 -04:00
virtio_console.h
…
virtio_crypto.h virtio-crypto: introduce akcipher service 2022-03-28 16:52:58 -04:00
virtio_fs.h
…
virtio_gpio.h virtio_gpio: drop packed attribute 2021-11-04 16:36:54 +01:00
virtio_gpu.h virtio-gpu api: multiple context types with explicit initialization 2021-09-29 09:22:29 +02:00
virtio_i2c.h i2c: virtio: Add support for zero-length requests 2021-11-01 05:26:48 -04:00
virtio_ids.h virtio: fix virtio transitional ids 2022-05-10 07:22:28 -04:00
virtio_input.h
…
virtio_iommu.h iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG 2021-12-06 15:03:05 +01:00
virtio_mem.h virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE 2021-11-10 15:32:38 +01:00
virtio_mmio.h
…
virtio_net.h uapi/linux/virtio_net.h: Added USO types. 2022-12-12 09:29:56 +00:00
virtio_pci.h virtio_pci: struct virtio_pci_common_cfg add queue_reset 2022-08-11 04:06:40 -04:00
virtio_pcidev.h um: virt-pci: fix uapi documentation 2021-08-26 22:28:03 +02:00
virtio_pmem.h
…
virtio_ring.h virtio: kerneldocs fixes and enhancements 2022-08-16 01:40:24 -04:00
virtio_rng.h
…
virtio_scmi.h firmware: arm_scmi: Add virtio transport 2021-08-05 10:24:08 +01:00
virtio_scsi.h
…
virtio_snd.h
…
virtio_types.h
…
virtio_vsock.h virtio/vsock: add 'VIRTIO_VSOCK_SEQ_EOR' bit. 2021-09-05 16:23:09 -04:00
vm_sockets.h vsock: Enable y2038 safe timeval for timeout 2021-10-08 16:21:53 +01:00
vm_sockets_diag.h
…
vmcore.h
…
vsockmon.h
…
vt.h
…
vtpm_proxy.h
…
wait.h
…
watch_queue.h
…
watchdog.h
…
wireguard.h
…
wireless.h
…
wmi.h
…
wwan.h
…
x25.h
…
xattr.h
…
xdp_diag.h
…
xfrm.h xfrm: add new packet offload flag 2022-12-05 10:30:47 +01:00
xilinx-v4l2-controls.h
…
zorro.h
…
zorro_ids.h
…