David Howells bbb4c4323a dns: Allow the dns resolver to retrieve a server set ... Allow the DNS resolver to retrieve a set of servers and their associated addresses, ports, preference and weight ratings. In terms of communication with userspace, "srv=1" is added to the callout string (the '1' indicating the maximum data version supported by the kernel) to ask the userspace side for this. If the userspace side doesn't recognise it, it will ignore the option and return the usual text address list. If the userspace side does recognise it, it will return some binary data that begins with a zero byte that would cause the string parsers to give an error. The second byte contains the version of the data in the blob (this may be between 1 and the version specified in the callout data). The remainder of the payload is version-specific. In version 1, the payload looks like (note that this is packed): u8 Non-string marker (ie. 0) u8 Content (0 => Server list) u8 Version (ie. 1) u8 Source (eg. DNS_RECORD_FROM_DNS_SRV) u8 Status (eg. DNS_LOOKUP_GOOD) u8 Number of servers foreach-server { u16 Name length (LE) u16 Priority (as per SRV record) (LE) u16 Weight (as per SRV record) (LE) u16 Port (LE) u8 Source (eg. DNS_RECORD_FROM_NSS) u8 Status (eg. DNS_LOOKUP_GOT_NOT_FOUND) u8 Protocol (eg. DNS_SERVER_PROTOCOL_UDP) u8 Number of addresses char[] Name (not NUL-terminated) foreach-address { u8 Family (AF_INET{,6}) union { u8[4] ipv4_addr u8[16] ipv6_addr } } } This can then be used to fetch a whole cell's VL-server configuration for AFS, for example. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-10-04 09:40:52 -07:00
..
android
byteorder
caif
can
cifs
dvb	media: dvb/audio.h: get rid of unused APIs	2018-07-30 16:21:49 -04:00
genwqe
hdlc
hsi
iio	iio: Add modifier for DUV light	2018-07-23 19:18:10 +01:00
isdn
mmc
netfilter	netfilter: uapi: fix linux/netfilter/nf_osf.h userspace compilation errors	2018-08-16 19:37:09 +02:00
netfilter_arp
netfilter_bridge	netfilter: ebtables: add ebt_get_target and ebt_get_target_c	2018-04-24 10:29:18 +02:00
netfilter_ipv4
netfilter_ipv6	netfilter: ip6t_srh: extend SRH matching for previous, next and last SID	2018-05-06 23:33:03 +02:00
nfsd
raid
sched
spi
sunrpc
tc_act	net/sched: tunnel_key: Allow to set tos and ttl for tc based ip tunnels	2018-07-19 23:26:01 -07:00
tc_ematch	net: sched: add em_ipt ematch for calling xtables matches	2018-02-21 13:15:33 -05:00
usb	USB/PHY patches for 4.19-rc1	2018-08-18 10:21:49 -07:00
wimax
a.out.h
acct.h
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h	aio: implement IOCB_CMD_POLL	2018-08-06 10:24:33 +02:00
am437x-vpfe.h
apm_bios.h
arcfb.h
arm_sdei.h
aspeed-lpc-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	Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-08-15 22:54:12 -07:00
auto_dev-ioctl.h
auto_fs.h	autofs: add AUTOFS_EXP_FORCED flag	2018-08-22 10:52:49 -07:00
auto_fs4.h	autofs4: merge auto_fs.h and auto_fs4.h	2018-06-07 17:34:39 -07:00
auxvec.h
ax25.h
b1lli.h
batadv_packet.h	batman-adv: always assume 2-byte packet alignment	2018-02-27 13:02:54 +01:00
batman_adv.h	batman-adv: add multicast flags netlink support	2018-03-14 10:15:34 +01:00
baycom.h
bcache.h	bcache: style fix to add a blank line after declarations	2018-08-11 15:46:41 -06:00
bcm933xx_hcs.h
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h	blktrace: fix comment in blktrace_api.h	2018-03-30 14:16:24 -06:00
blkzoned.h	include/uapi/linux/blkzoned.h: Remove a superfluous __packed directive	2018-07-09 09:07:52 -06:00
bpf.h	flow_dissector: implements flow dissector BPF hook	2018-09-14 12:04:33 -07:00
bpf_common.h
bpf_perf_event.h	bpf: add support to read sample address in bpf program	2018-03-08 02:22:34 +01:00
bpfilter.h	net: add skeleton of bpfilter kernel module	2018-05-23 13:23:40 -04:00
bpqether.h
bsg.h
bt-bmc.h
btf.h	bpf: btf: Clean up BTF_INT_BITS() in uapi btf.h	2018-07-20 10:25:48 +02:00
btrfs.h	btrfs: Add unprivileged version of ino_lookup ioctl	2018-05-31 11:35:24 +02:00
btrfs_tree.h
can.h	can: uapi: can.h: Fix can error class mask dir path	2018-07-27 10:40:16 +02:00
capability.h
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h
cec-funcs.h	media: include/(uapi/)media: add SPDX license info	2018-02-14 13:23:51 -05:00
cec.h	media: uapi/linux/cec.h: add 5V events	2018-07-25 06:59:23 -04:00
cgroupstats.h
chio.h
cm4000_cs.h
cn_proc.h	connector: add parent pid and tgid to coredump and exit events	2018-05-01 14:25:37 -04:00
coda.h
coda_psdev.h
coff.h
connector.h
const.h	linux/const.h: refactor _BITUL and _BITULL a bit	2018-04-11 10:28:38 -07:00
coresight-stm.h
cramfs_fs.h
cryptouser.h
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h	net: dcb: add DSCP to comment about priority selector types	2018-07-29 12:53:54 -07:00
dccp.h
devlink.h	devlink: Add support for region snapshot read command	2018-07-12 17:37:13 -07:00
dlm.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlmconstants.h
dm-ioctl.h	dm: hold DM table for duration of ioctl rather than use blkdev_get	2018-04-04 12:12:38 -04:00
dm-log-userspace.h
dma-buf.h
dn.h
dns_resolver.h	dns: Allow the dns resolver to retrieve a server set	2018-10-04 09:40:52 -07:00
dqblk_xfs.h
edd.h
efs_fs_sb.h
elf-em.h
elf-fdpic.h
elf.h	MIPS: Add FP_MODE regset support	2018-07-19 13:58:44 -07:00
elfcore.h
errno.h
errqueue.h	net/sched: Make etf report drops on error_queue	2018-07-04 22:30:28 +09:00
erspan.h	net: erspan: create erspan metadata uapi header	2018-01-25 21:39:43 -05:00
ethtool.h	ethtool: drop get_settings and set_settings callbacks	2018-08-29 19:46:10 -07:00
eventpoll.h	eventpoll.h: wrap casts in () properly	2018-07-15 14:03:06 +02:00
fadvise.h
falloc.h
fanotify.h
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h	net: fib_rules: support for match on ip_proto, sport and dport	2018-02-28 22:44:43 -05:00
fiemap.h
filter.h
firewire-cdev.h
firewire-constants.h
flat.h
fou.h
fpga-dfl.h	fpga: dfl: afu: add DFL_FPGA_PORT_DMA_MAP/UNMAP ioctls support	2018-07-15 13:55:47 +02:00
fs.h	Add bunch of cleanups, and add support for the Speck128/256	2018-06-05 15:15:32 -07:00
fsi.h	fsi: scom: Major overhaul	2018-06-18 15:11:53 +10:00
fsl_hypervisor.h
fsmap.h
fuse.h	fuse: return -ECONNABORTED on /dev/fuse read after abort	2018-03-20 17:11:44 +01:00
futex.h
gameport.h
gen_stats.h	net/core: Add new basic hardware counter	2018-09-24 12:18:42 -07:00
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_addr: add IFA_TARGET_NETNSID	2018-09-05 22:27:11 -07:00
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h	net: if_arp: use define instead of hard-coded value	2018-09-21 19:22:32 -07:00
if_bonding.h
if_bridge.h
if_cablemodem.h
if_eql.h
if_ether.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-03-23 11:31:58 -04:00
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h	uapi: Fix SPDX tags for files referring to the 'OpenIB.org' license	2018-04-23 11:10:33 -04:00
if_link.h	geneve: add ttl inherit support	2018-09-12 20:38:22 -07:00
if_ltalk.h
if_macsec.h
if_packet.h	packet: add sockopt to ignore outgoing packets	2018-09-05 22:09:37 -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: Fix umem fill/completion queue mmap on 32-bit	2018-06-08 00:18:02 +02:00
ife.h
igmp.h
ila.h	ila: Flush netlink command to clear xlat table	2018-06-29 11:32:55 +09:00
in.h
in6.h	ipv6: Add sockopt IPV6_MULTICAST_ALL analogue to IP_MULTICAST_ALL	2018-09-13 08:17:27 -07:00
in_route.h
inet_diag.h
inotify.h	inotify: Add flag IN_MASK_CREATE for inotify_add_watch()	2018-06-27 19:21:25 +02:00
input-event-codes.h
input.h	input: add MT_TOOL_DIAL	2018-07-17 15:33:47 +02:00
ioctl.h
ip.h	route: add support for directed broadcast forwarding	2018-07-29 12:37:06 -07:00
ip6_tunnel.h
ip_vs.h
ipc.h
ipmi.h	ipmi: Add or fix SPDX-License-Identifier in all files	2018-02-27 07:42:51 -06:00
ipmi_bmc.h	ipmi: kcs_bmc: coding-style fixes and use new poll type	2018-02-26 09:49:21 -06:00
ipmi_msgdefs.h	ipmi: Add or fix SPDX-License-Identifier in all files	2018-02-27 07:42:51 -06:00
ipsec.h
ipv6.h
ipv6_route.h
ipx.h
irqnr.h
isdn.h
isdn_divertif.h
isdn_ppp.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
jffs2.h
joystick.h	Input: stop telling users to snail-mail Vojtech	2018-07-26 17:04:37 -07:00
Kbuild
kcm.h
kcmp.h
kcov.h
kd.h
kdev_t.h
kernel-page-flags.h	mm: mark pages in use for page tables	2018-06-07 17:34:37 -07:00
kernel.h
kernelcapi.h
kexec.h
keyboard.h	kbd: complete dead keys definitions	2018-07-07 17:41:38 +02:00
keyctl.h	Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name"	2018-09-25 13:28:58 +02:00
kfd_ioctl.h	drm/amd: Add CU-masking ioctl definition to kfd_ioctl.h	2018-07-14 19:05:58 -04:00
kvm.h	KVM: x86: Control guest reads of MSR_PLATFORM_INFO	2018-09-20 00:51:46 +02:00
kvm_para.h	KVM: X86: Implement PV IPIs in linux guest	2018-08-06 17:59:22 +02:00
l2tp.h	l2tp: ignore L2TP_ATTR_MTU	2018-08-03 10:03:57 -07:00
libc-compat.h	uapi/if_ether.h: move __UAPI_DEF_ETHHDR libc define	2018-02-13 11:23:24 -05:00
lightnvm.h
limits.h
lirc.h	media: rc: add ioctl to get the current timeout	2018-04-20 09:15:18 -04:00
llc.h
loop.h
lp.h
lwtunnel.h
magic.h
major.h
map_to_7segment.h
matroxfb.h
max2175.h
mdio.h
media-bus-format.h	media: v4l: Add new 2X8 10-bit grayscale media bus code	2018-08-02 06:04:57 -04:00
media.h	media: media.h: remove linux/version.h include	2018-07-27 07:52:39 -04:00
mei.h
membarrier.h	membarrier: Provide core serializing command, *_SYNC_CORE	2018-02-05 21:35:03 +01:00
memfd.h
mempolicy.h
meye.h
mic_common.h
mic_ioctl.h
mii.h	net: phy: add GBit master / slave error detection	2018-07-24 14:41:08 -07:00
minix_fs.h
mman.h
mmtimer.h
module.h
mpls.h
mpls_iptunnel.h
mqueue.h
mroute.h	net: ipmr: add support for passing full packet on wrong vif	2018-07-13 14:21:16 -07:00
mroute6.h
msdos_fs.h	block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h>	2018-03-17 14:45:23 -06:00
msg.h	ipc/msg: introduce msgctl(MSG_STAT_ANY)	2018-04-11 10:28:37 -07:00
mtio.h
n_r3964.h
nbd-netlink.h
nbd.h	nbd: Add the nbd NBD_DISCONNECT_ON_CLOSE config flag.	2018-06-20 19:10:06 -06:00
ncsi.h	net/ncsi: Add generic netlink family	2018-03-05 10:43:37 -05:00
ndctl.h	libnvdimm, namespace: make min namespace size 4K	2018-02-01 21:27:22 -08:00
neighbour.h	net: bridge: add support for sticky fdb entries	2018-09-12 20:30:03 -07:00
net.h
net_dropmon.h
net_namespace.h
net_tstamp.h	net: Use __u32 in uapi net_stamp.h	2018-07-09 16:31:28 -07:00
netconf.h	route: add support for directed broadcast forwarding	2018-07-29 12:37:06 -07:00
netdevice.h
netfilter.h
netfilter_arp.h
netfilter_bridge.h	netfilter: bridge: Expose nf_tables bridge hook priorities through uapi	2018-08-03 21:15:09 +02:00
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h
netlink_diag.h
netrom.h
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
nl80211.h	nl80211: Add CAN_REPLACE_PTK0 API	2018-09-05 10:03:17 +02:00
nsfs.h
nubus.h
nvme_ioctl.h
nvram.h
omap3isp.h	media: omap3isp: support 64-bit version of omap3isp_stat_data	2018-05-09 16:37:05 -04:00
omapfb.h
oom.h
openvswitch.h	openvswitch: kernel datapath clone action	2018-07-08 11:13:25 +09:00
packet_diag.h
param.h
parport.h
patchkey.h
pci.h
pci_regs.h	Merge branch 'pci/virtualization'	2018-08-15 14:59:06 -05:00
pcitest.h	pci_endpoint_test: Add 2 ioctl commands	2018-07-19 11:46:57 +01:00
perf_event.h	perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use	2018-09-10 10:03:02 +02:00
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h	net: sched: cls_flower: dump offload count value	2018-09-10 10:35:15 -07:00
pkt_sched.h	net/sched: fix type of htb statistics	2018-09-02 13:57:12 -07:00
pktcdvd.h
pmu.h	macintosh/via-pmu: Replace via-pmu68k driver with via-pmu driver	2018-07-31 19:56:42 +10:00
poll.h
posix_acl.h
posix_acl_xattr.h
posix_types.h
ppdev.h
ppp-comp.h
ppp-ioctl.h	l2tp: remove pppol2tp_session_ioctl()	2018-08-11 12:13:49 -07:00
ppp_defs.h
pps.h
pr.h
prctl.h	docs: Fix some broken references	2018-06-15 18:10:01 -03:00
psample.h
psci.h	arm/arm64: KVM: Add PSCI_VERSION helper	2018-02-06 22:53:56 +00:00
psp-sev.h	crypto: ccp - Add GET_ID SEV command	2018-05-31 00:13:56 +08:00
ptp_clock.h
ptrace.h	seccomp, ptrace: switch get_metadata types to arch independent	2018-02-21 16:56:03 -08:00
qemu_fw_cfg.h	fw_cfg: write vmcoreinfo details	2018-03-20 03:17:41 +02:00
qnx4_fs.h
qnxtypes.h
qrtr.h
quota.h
radeonfb.h
random.h	random: add new ioctl RNDRESEEDCRNG	2018-04-14 11:59:31 -04:00
raw.h
rds.h	uapi: Fix linux/rds.h userspace compilation errors.	2018-09-02 16:14:44 -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	rpmsg: char: Switch to SPDX license identifier	2018-06-03 17:37:16 -07:00
rseq.h	rseq: uapi: Declare rseq_cs field as union, update includes	2018-07-10 22:18:52 +02:00
rtc.h
rtnetlink.h	net: sched: introduce chain object to uapi	2018-07-23 20:44:12 -07:00
rxrpc.h
scc.h
sched.h
scif_ioctl.h
screen_info.h
sctp.h	sctp: add spp_ipv6_flowlabel and spp_dscp for sctp_paddrparams	2018-07-04 11:36:54 +09:00
sdla.h
seccomp.h	seccomp: Add filter flag to opt-out of SSB mitigation	2018-05-05 00:51:44 +02:00
securebits.h
sed-opal.h
seg6.h
seg6_genl.h
seg6_hmac.h
seg6_iptunnel.h
seg6_local.h	ipv6: sr: Add seg6local action End.BPF	2018-05-24 11:57:36 +02:00
selinux_netlink.h
sem.h	ipc/sem: introduce semctl(SEM_STAT_ANY)	2018-04-11 10:28:37 -07:00
serial.h
serial_core.h	serial: 8250: Add Nuvoton NPCM UART	2018-03-09 11:01:19 -08:00
serial_reg.h
serio.h
shm.h	ipc/shm: introduce shmctl(SHM_STAT_ANY)	2018-04-11 10:28:37 -07:00
signal.h
signalfd.h	signal/signalfd: Add support for SIGSYS	2018-04-26 19:51:12 -05:00
smc.h
smc_diag.h	net/smc: provide fallback reason code	2018-07-25 22:25:53 -07:00
smiapp.h
snmp.h	ip: discard IPv4 datagrams with overlapping segments.	2018-08-05 17:16:46 -07:00
sock_diag.h
socket.h
sockios.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
stm.h	stm class: Make dummy's master/channel ranges configurable	2018-03-28 18:47:18 +03:00
string.h
suspend_ioctls.h
swab.h
switchtec_ioctl.h
sync_file.h
synclink.h
sysctl.h	ipv6: Add icmp_echo_ignore_all support for ICMPv6	2018-08-13 08:42:25 -07:00
sysinfo.h
target_core_user.h	scsi: target: tcmu: add read length support	2018-06-18 21:02:52 -04:00
taskstats.h
tcp.h	tcp: add stat of data packet reordering events	2018-08-01 09:56:10 -07:00
tcp_metrics.h
tee.h
termios.h
thermal.h
time.h	time: Introduce struct __kernel_itimerspec	2018-06-24 14:39:46 +02:00
timerfd.h
times.h
timex.h
tiocl.h
tipc.h	tipc: introduce ioctl for fetching node identity	2018-04-27 11:05:41 -04:00
tipc_config.h	tipc: set default MTU for UDP media	2018-04-20 11:04:05 -04:00
tipc_netlink.h	tipc: extend sock diag for group communication	2018-06-30 21:05:42 +09:00
tipc_sockets_diag.h	tipc: implement socket diagnostics for AF_TIPC	2018-03-22 14:43:35 -04:00
tls.h	uapi: Fix SPDX tags for files referring to the 'OpenIB.org' license	2018-04-23 11:10:33 -04:00
toshiba.h
tty.h
tty_flags.h	tty: fix typo in ASYNCB_FOURPORT comment	2018-05-24 18:38:51 +02:00
types.h	uapi: turn __poll_t sparse checks on by default	2018-05-26 09:16:44 +02:00
udf_fs_i.h
udp.h	udp: generate gso with UDP_SEGMENT	2018-04-26 15:08:04 -04:00
uhid.h
uinput.h
uio.h
uleds.h
ultrasound.h
un.h
unistd.h
unix_diag.h
usbdevice_fs.h
usbip.h
userfaultfd.h
userio.h
utime.h
utsname.h
uuid.h	uuid: cleanup <uapi/linux/uuid.h>	2018-02-06 18:32:44 -08:00
uvcvideo.h	media: uvcvideo: Send a control event when a Control Change interrupt arrives	2018-07-27 06:39:57 -04:00
v4l2-common.h
v4l2-controls.h	media: v4l2-ctrl: Add control for VP9 profile	2018-07-04 09:32:22 -04:00
v4l2-dv-timings.h
v4l2-mediabus.h	media: v4l: doc: Clarify v4l2_mbus_fmt height definition	2018-02-26 08:15:50 -05:00
v4l2-subdev.h	media: v4l: Add support for STD ioctls on subdev nodes	2018-07-24 17:39:28 -04:00
vbox_err.h
vbox_vmmdev_types.h
vboxguest.h
veth.h
vfio.h	vfio/pci: Add ioeventfd support	2018-03-26 13:22:58 -06:00
vfio_ccw.h
vhost.h	vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition	2018-09-03 21:23:24 -07:00
videodev2.h	media: v4l: Add new 10-bit packed grayscale format	2018-08-02 06:07:05 -04:00
virtio_9p.h
virtio_balloon.h	virtio_balloon: add array of stat names	2018-04-24 21:44:01 +03:00
virtio_blk.h
virtio_config.h	virtio: update the comments for transport features	2018-06-12 04:59:29 +03:00
virtio_console.h
virtio_crypto.h
virtio_gpu.h	drm/virtio: add define for second capset to the virgl code.	2018-05-14 11:01:29 +02:00
virtio_ids.h
virtio_input.h
virtio_mmio.h
virtio_net.h	virtio_net: Introduce VIRTIO_NET_F_STANDBY feature bit	2018-05-28 22:59:54 -04:00
virtio_pci.h
virtio_ring.h
virtio_rng.h
virtio_scsi.h
virtio_types.h
virtio_vsock.h
vm_sockets.h
vm_sockets_diag.h
vmcore.h	vmcore: add API to collect hardware dump in second kernel	2018-05-14 13:46:04 -04:00
vsockmon.h
vt.h
vtpm_proxy.h
wait.h
wanrouter.h
watchdog.h
wimax.h
wireless.h
wmi.h
x25.h
xattr.h
xfrm.h	xfrm: Add a new lookup key to match xfrm interfaces.	2018-06-23 16:07:15 +02:00
xilinx-v4l2-controls.h
zorro.h
zorro_ids.h