Kuniyuki Iwashima df30285b36 af_unix: Introduce SO_INQ. ... We have an application that uses almost the same code for TCP and AF_UNIX (SOCK_STREAM). TCP can use TCP_INQ, but AF_UNIX doesn't have it and requires an extra syscall, ioctl(SIOCINQ) or getsockopt(SO_MEMINFO) as an alternative. Let's introduce the generic version of TCP_INQ. If SO_INQ is enabled, recvmsg() will put a cmsg of SCM_INQ that contains the exact value of ioctl(SIOCINQ). The cmsg is also included when msg->msg_get_inq is non-zero to make sockets io_uring-friendly. Note that SOCK_CUSTOM_SOCKOPT is flagged only for SOCK_STREAM to override setsockopt() for SOL_SOCKET. By having the flag in struct unix_sock, instead of struct sock, we can later add SO_INQ support for TCP and reuse tcp_sk(sk)->recvmsg_inq. Note also that supporting custom getsockopt() for SOL_SOCKET will need preparation for other SOCK_CUSTOM_SOCKOPT users (UDP, vsock, MPTCP). Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250702223606.1054680-7-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-07-08 18:05:25 -07:00
..
9p	…
bluetooth	Bluetooth: hci_core: Fix use-after-free in vhci_flush()	2025-06-23 10:59:29 -04:00
caif	…
iucv	…
libeth	libeth: xdp, xsk: access adjacent u32s as u64 where applicable	2025-06-16 11:40:15 -07:00
mana	net: mana: Handle Reset Request from MANA NIC	2025-07-01 19:17:53 -07:00
netfilter	netfilter: nf_tables: Add notifications for hook changes	2025-05-23 13:57:14 +02:00
netns	ipv6: Protect fib6_link_table() with spinlock.	2025-04-24 09:29:56 +02:00
nfc	…
page_pool	page_pool: make page_pool_get_dma_addr() just wrap page_pool_get_dma_addr_netmem()	2025-07-07 18:40:10 -07:00
phonet	…
sctp	sctp: mark sctp_do_peeloff static	2025-05-27 18:18:55 -07:00
tc_act	net/sched: Remove unused functions	2025-06-25 15:28:08 -07:00
6lowpan.h	…
Space.h	…
act_api.h	net/sched: acp_api: no longer acquire RTNL in tc_action_net_exit()	2025-07-08 13:00:24 +02:00
addrconf.h	ipv6: Add __in6_dev_get_rtnl_net().	2025-01-20 12:16:04 -08:00
af_ieee802154.h	…
af_rxrpc.h	rxrpc: Remove deadcode	2025-04-24 17:03:45 -07:00
af_unix.h	af_unix: Introduce SO_INQ.	2025-07-08 18:05:25 -07:00
af_vsock.h	vsock: Move lingering logic to af_vsock core	2025-05-27 11:05:21 +02:00
ah.h	…
aligned_data.h	udp: move udp_memory_allocated into net_aligned_data	2025-07-02 14:22:02 -07:00
amt.h	…
arp.h	…
atmclip.h	…
ax25.h	ax25: Remove broken autobind	2025-03-24 10:26:53 +00:00
ax88796.h	…
bareudp.h	…
bond_3ad.h	…
bond_alb.h	…
bond_options.h	net: bonding: add broadcast_neighbor option for 802.3ad	2025-07-08 10:59:41 +02:00
bonding.h	net: bonding: add broadcast_neighbor option for 802.3ad	2025-07-08 10:59:41 +02:00
bpf_sk_storage.h	…
busy_poll.h	net: gro: decouple GRO from the NAPI layer	2025-02-27 14:03:14 +01:00
calipso.h	…
cfg80211-wext.h	…
cfg80211.h	wifi: cfg80211: support configuration of S1G station capabilities	2025-06-24 15:19:28 +02:00
cfg802154.h	…
checksum.h	net: Fix checksum update for ILA adj-transport	2025-05-30 19:53:51 -07:00
cipso_ipv4.h	…
cls_cgroup.h	…
codel.h	…
codel_impl.h	…
codel_qdisc.h	…
compat.h	…
datalink.h	…
dcbevent.h	…
dcbnl.h	…
devlink.h	devlink: Extend devlink rate API with traffic classes bandwidth management	2025-07-02 15:39:05 -07:00
dropreason-core.h	can: add drop reasons in the receive path of AF_CAN	2025-06-10 10:23:30 +02:00
dropreason.h	wifi: mac80211: Drop cooked monitor support	2025-02-11 11:58:17 +01:00
dsa.h	net: dsa: tag_brcm: add support for legacy FCS tags	2025-06-17 17:52:01 -07:00
dsa_stubs.h	…
dscp.h	…
dsfield.h	…
dst.h	net: dst: add four helpers to annotate data-races around dst->dev	2025-07-02 14:32:30 -07:00
dst_cache.h	…
dst_metadata.h	net: Add options as a flexible array to struct ip_tunnel_info	2025-02-20 13:17:16 -08:00
dst_ops.h	…
eee.h	…
erspan.h	…
esp.h	…
espintcp.h	…
ethoc.h	…
failover.h	…
fib_notifier.h	…
fib_rules.h	net: fib_rules: Fix iif / oif matching on L3 master device	2025-04-15 17:54:56 -07:00
firewire.h	…
flow.h	ip: load balance tcp connections to single dst addr and port	2025-04-29 16:22:25 +02:00
flow_dissector.h	…
flow_offload.h	…
fou.h	…
fq.h	…
fq_impl.h	…
garp.h	…
gen_stats.h	…
genetlink.h	…
geneve.h	…
gre.h	…
gro.h	net: gro: expose GRO init/cleanup to use outside of NAPI	2025-02-27 14:03:14 +01:00
gro_cells.h	…
gso.h	…
gtp.h	…
gue.h	…
handshake.h	…
hotdata.h	net: introduce per netns packet chains	2025-03-24 13:58:22 -07:00
hwbm.h	…
icmp.h	…
ieee8021q.h	…
ieee80211_radiotap.h	…
ieee802154_netdev.h	…
if_inet6.h	…
ife.h	…
inet6_connection_sock.h	tcp/dccp: Remove inet_connection_sock_af_ops.addr2sockaddr().	2025-03-24 12:10:13 -07:00
inet6_hashtables.h	ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers	2025-07-02 14:32:30 -07:00
inet_common.h	…
inet_connection_sock.h	tcp/dccp: remove icsk->icsk_ack.timeout	2025-03-25 10:34:33 -07:00
inet_dscp.h	…
inet_ecn.h	…
inet_frag.h	inet: frags: change inet_frag_kill() to defer refcount updates	2025-03-18 13:18:36 +01:00
inet_hashtables.h	ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]	2025-07-02 14:32:30 -07:00
inet_sock.h	sctp: Prepare sctp_v4_get_dst() to dscp_t conversion.	2025-01-06 13:49:38 -08:00
inet_timewait_sock.h	…
inetpeer.h	…
ioam6.h	…
ip.h	ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]	2025-07-02 14:32:30 -07:00
ip6_checksum.h	…
ip6_fib.h	ipv6: Defer fib6_purge_rt() in fib6_add_rt2node() to fib6_add().	2025-04-24 09:29:56 +02:00
ip6_route.h	ipv6: adopt dst_dev() helper	2025-07-02 14:32:30 -07:00
ip6_tunnel.h	ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers	2025-07-02 14:32:30 -07:00
ip_fib.h	ipv4: prefer multipath nexthop that matches source address	2025-04-29 16:22:25 +02:00
ip_tunnels.h	net: ipv4: Add a flags argument to iptunnel_xmit(), udp_tunnel_xmit_skb()	2025-06-17 18:18:44 -07:00
ip_vs.h	…
ipcomp.h	xfrm: ipcomp: Use crypto_acomp interface	2025-03-21 17:36:49 +08:00
ipconfig.h	…
ipv6.h	ipv6: fix _DEVADD() and _DEVUPD() macros	2025-03-25 07:31:24 -07:00
ipv6_frag.h	inet: frags: change inet_frag_kill() to defer refcount updates	2025-03-18 13:18:36 +01:00
ipv6_stubs.h	…
iw_handler.h	…
kcm.h	…
l3mdev.h	net: fib_rules: Fix iif / oif matching on L3 master device	2025-04-15 17:54:56 -07:00
lag.h	…
lapb.h	…
llc.h	…
llc_c_ac.h	…
llc_c_ev.h	…
llc_c_st.h	…
llc_conn.h	…
llc_if.h	…
llc_pdu.h	…
llc_s_ac.h	…
llc_s_ev.h	…
llc_s_st.h	…
llc_sap.h	…
lwtunnel.h	net: dst: annotate data-races around dst->output	2025-07-02 14:32:30 -07:00
mac80211.h	wifi: mac80211: handle station association response with S1G	2025-06-24 15:19:28 +02:00
mac802154.h	…
macsec.h	net: macsec: Add endianness annotations in salt struct	2025-01-20 12:20:42 +00:00
mctp.h	net: mctp: add gateway routing support	2025-07-08 12:39:24 +02:00
mctpdevice.h	…
mip6.h	…
mld.h	…
mpls.h	…
mpls_iptunnel.h	…
mptcp.h	mptcp: sched: remove mptcp_sched_data	2025-04-15 08:21:46 -07:00
mrp.h	…
ncsi.h	…
ndisc.h	…
neighbour.h	neighbor: Add NTF_EXT_VALIDATED flag for externally validated entries	2025-06-30 18:14:23 -07:00
neighbour_tables.h	…
net_debug.h	…
net_failover.h	…
net_namespace.h	net: Remove ->exit_batch_rtnl().	2025-04-14 17:08:45 -07:00
net_ratelimit.h	…
net_shaper.h	…
net_trackers.h	…
netdev_lock.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-05-22 09:42:41 -07:00
netdev_netlink.h	net: add granular lock for the netdev netlink socket	2025-03-12 13:32:35 -07:00
netdev_queues.h	queue_api: add subqueue variant netif_subqueue_sent	2025-06-10 15:27:18 -07:00
netdev_rx_queue.h	net: designate XSK pool pointers in queues as "ops protected"	2025-04-09 17:01:51 -07:00
netevent.h	…
netkit.h	…
netlabel.h	…
netlink.h	netlink: introduce type-checking attribute iteration for nlmsg	2025-07-02 15:39:04 -07:00
netmem.h	netmem: use _Generic to cover const casting for page_to_netmem()	2025-07-07 18:40:10 -07:00
netprio_cgroup.h	…
netrom.h	…
nexthop.h	ipv6: Protect nh->f6i_list with spinlock and flag.	2025-04-24 09:29:56 +02:00
nl802154.h	…
nsh.h	…
pfcp.h	net: pfcp: fix typo in message_priority field name	2025-06-13 18:17:08 -07:00
pie.h	…
ping.h	…
pkt_cls.h	net: sched: refine software bypass handling in tc_run	2025-01-20 09:21:27 +00:00
pkt_sched.h	…
pptp.h	…
proto_memory.h	…
protocol.h	…
psample.h	…
psnap.h	…
raw.h	…
rawv6.h	…
red.h	…
regulatory.h	…
request_sock.h	tcp: remove inet_rtx_syn_ack()	2025-06-27 15:34:19 -07:00
rose.h	…
route.h	ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]	2025-07-02 14:32:30 -07:00
rpl.h	…
rps.h	net: rfs: add sock_rps_delete_flow() helper	2025-05-16 16:03:48 -07:00
rsi_91x.h	…
rstreason.h	net: Retire DCCP socket.	2025-04-11 18:58:10 -07:00
rtnetlink.h	rtnetlink: Remove "net" from newlink params	2025-02-21 15:28:03 -08:00
rtnh.h	…
sch_generic.h	net_sched: remove qdisc_tree_flush_backlog()	2025-06-12 08:05:50 -07:00
scm.h	scm: Move scm_recv() from scm.h to scm.c.	2025-05-23 10:24:18 +01:00
secure_seq.h	net: Retire DCCP socket.	2025-04-11 18:58:10 -07:00
seg6.h	…
seg6_hmac.h	…
seg6_local.h	…
selftests.h	…
slhc_vj.h	…
smc.h	…
snmp.h	percpu: use TYPEOF_UNQUAL() in variable declarations	2025-03-16 22:05:53 -07:00
sock.h	net: make sk->sk_rcvtimeo lockless	2025-06-23 17:05:12 -07:00
sock_reuseport.h	…
stp.h	…
strparser.h	strparser: Remove unused __strp_unpause	2025-05-05 16:48:12 -07:00
switchdev.h	…
tc_wrapper.h	…
tcp.h	tcp: move tcp_memory_allocated into net_aligned_data	2025-07-02 14:22:02 -07:00
tcp_ao.h	…
tcp_states.h	…
tcx.h	…
timewait_sock.h	…
tipc.h	…
tls.h	…
tls_prot.h	…
tls_toe.h	…
transp_v6.h	…
tso.h	…
tun_proto.h	…
udp.h	udp: move udp_memory_allocated into net_aligned_data	2025-07-02 14:22:02 -07:00
udp_tunnel.h	udp_tunnel: fix deadlock in udp_tunnel_nic_set_port_priv()	2025-06-24 16:31:36 -07:00
udplite.h	…
vsock_addr.h	…
vxlan.h	vxlan: Support MC routing in the underlay	2025-06-17 18:18:46 -07:00
wext.h	…
x25.h	…
x25device.h	…
xdp.h	xdp: create locked/unlocked instances of xdp redirect target setters	2025-04-22 19:57:56 -07:00
xdp_priv.h	…
xdp_sock.h	xsk: Fix race condition in AF_XDP generic RX path	2025-04-24 17:11:33 -07:00
xdp_sock_drv.h	xsk: Add launch time hardware offload support to XDP Tx metadata	2025-02-20 15:13:45 -08:00
xfrm.h	ipsec-next-2025-05-23	2025-05-26 18:32:48 +02:00
xsk_buff_pool.h	xsk: Fix offset calculation in unaligned mode	2025-04-24 17:11:52 -07:00