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twx-linux/include/trace/events
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Chuck Lever 3b3009ea8a net/handshake: Create a NETLINK service for handling handshake requests 
When a kernel consumer needs a transport layer security session, it
first needs a handshake to negotiate and establish a session. This
negotiation can be done in user space via one of the several
existing library implementations, or it can be done in the kernel.

No in-kernel handshake implementations yet exist. In their absence,
we add a netlink service that can:

a. Notify a user space daemon that a handshake is needed.

b. Once notified, the daemon calls the kernel back via this
   netlink service to get the handshake parameters, including an
   open socket on which to establish the session.

c. Once the handshake is complete, the daemon reports the
   session status and other information via a second netlink
   operation. This operation marks that it is safe for the
   kernel to use the open socket and the security session
   established there.

The notification service uses a multicast group. Each handshake
mechanism (eg, tlshd) adopts its own group number so that the
handshake services are completely independent of one another. The
kernel can then tell via netlink_has_listeners() whether a handshake
service is active and prepared to handle a handshake request.

A new netlink operation, ACCEPT, acts like accept(2) in that it
instantiates a file descriptor in the user space daemon's fd table.
If this operation is successful, the reply carries the fd number,
which can be treated as an open and ready file descriptor.

While user space is performing the handshake, the kernel keeps its
muddy paws off the open socket. A second new netlink operation,
DONE, indicates that the user space daemon is finished with the
socket and it is safe for the kernel to use again. The operation
also indicates whether a session was established successfully.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-04-19 18:48:48 -07:00
..
9p.h 9p fid refcount: add a 9p_fid_ref tracepoint 2022-07-02 18:52:21 +09:00
afs.h afs: Fix access after dec in put functions 2022-08-02 18:21:29 +01:00
alarmtimer.h
asoc.h
avc.h
bcache.h
block.h block: introduce block_rq_error tracepoint 2022-02-11 10:00:16 -07:00
bpf_test_run.h
bridge.h net: bridge: Add a tracepoint for MDB overflows 2023-02-06 08:48:25 +00:00
btrfs.h btrfs: introduce size class to block group allocator 2023-02-13 17:50:34 +01:00
cachefiles.h fscache,cachefiles: add prepare_ondemand_read() callback 2022-12-07 10:56:29 +08:00
cgroup.h cgroup: Trace event cgroup id fields should be u64 2021-12-01 07:23:35 -10:00
clk.h clk: Add trace events for rate requests 2022-12-07 13:54:09 -08:00
cma.h cma: tracing: print alloc result in trace_cma_alloc_finish 2023-01-18 17:12:41 -08:00
compaction.h tracing: incorrect gfp_t conversion 2022-05-13 07:20:18 -07:00
context_tracking.h
cpuhp.h
damon.h mm/damon: hide kernel pointer from tracepoint event 2022-01-15 16:30:33 +02:00
devfreq.h
devlink.h devlink: Fix TP_STRUCT_entry in trace of devlink health report 2023-02-15 19:15:44 -08:00
dlm.h fs: dlm: add dst nodeid for msg tracing 2022-11-21 09:45:49 -06:00
dma_fence.h
erofs.h erofs: remove unused EROFS_GET_BLOCKS_RAW flag 2023-02-15 08:11:26 +08:00
error_report.h panic: use error_report_end tracepoint on warnings 2022-01-20 08:52:55 +02:00
ext4.h ext4: disable fast-commit of encrypted dir operations 2022-12-08 21:49:24 -05:00
f2fs.h f2fs: Fix f2fs_truncate_partial_nodes ftrace event 2023-03-10 08:57:49 -08:00
fib6.h ipv6: Remove in6addr_any alternatives. 2023-03-29 08:22:52 +01:00
fib.h ipv6: Remove in6addr_any alternatives. 2023-03-29 08:22:52 +01:00
filelock.h
filemap.h filemap: Convert tracing of page cache operations to folio 2022-01-04 13:15:33 -05:00
fs_dax.h
fscache.h fscache: Fix oops due to race with cookie_lru and use_cookie 2022-12-07 11:49:18 -08:00
fsi_master_aspeed.h fsi: Add trace events in initialization path 2022-02-21 19:38:54 +10:30
fsi_master_ast_cf.h
fsi_master_gpio.h
fsi.h fsi: Add trace events in initialization path 2022-02-21 19:38:54 +10:30
gpio.h
gpu_mem.h
habanalabs.h habanalabs: define events to trace PCI LBW access 2023-01-26 11:52:11 +02:00
handshake.h net/handshake: Create a NETLINK service for handling handshake requests 2023-04-19 18:48:48 -07:00
host1x.h
huge_memory.h mm/khugepaged: add tracepoint to collapse_file() 2022-12-11 18:12:09 -08:00
hwmon.h
i2c_slave.h i2c: add tracepoints for I2C slave events 2022-03-20 00:11:05 +01:00
i2c.h
ib_mad.h IB/mad: Don't call to function that might sleep while in atomic context 2022-11-10 10:57:15 +02:00
ib_umad.h
initcall.h
intel_ifs.h trace: platform/x86/intel/ifs: Add trace point to track Intel IFS operations 2022-05-12 15:35:29 +02:00
intel_ish.h
intel-sst.h
io_uring.h io_uring: trace local task work run 2022-09-21 10:30:42 -06:00
iocost.h blk-iocost: Trace vtime_base_rate instead of vtime_rate 2022-12-01 07:44:12 -07:00
iommu.h iommu: Remove detach_dev callback 2023-01-13 16:39:18 +01:00
ipi.h
irq_matrix.h
irq.h
iscsi.h scsi: iscsi: tracing: Use the new __vstring() helper 2022-07-19 11:20:25 -04:00
jbd2.h jbd2: use the correct print format 2022-12-08 21:49:12 -05:00
kmem.h mm: convert mm's rss stats into percpu_counter 2022-11-30 15:58:40 -08:00
kvm.h KVM: x86/mmu: rename trace function name for asynchronous page fault 2022-08-10 15:08:26 -04:00
kyber.h kyber: avoid q->disk dereferences in trace points 2021-10-15 21:02:57 -06:00
libata.h ata: libata: add qc->flags in ata_qc_complete_template tracepoint 2022-06-17 16:30:03 +09:00
lock.h locking/mutex: Make contention tracepoints more consistent wrt adaptive spinning 2022-04-05 10:24:36 +02:00
maple_tree.h Maple Tree: add new data structure 2022-09-26 19:46:13 -07:00
mce.h
mctp.h mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control 2022-02-09 12:00:11 +00:00
mdio.h
migrate.h mm/migration: add trace events for base page and HugeTLB migrations 2022-03-24 19:06:45 -07:00
mlxsw.h
mmap_lock.h mm: mmap_lock: use DECLARE_EVENT_CLASS and DEFINE_EVENT_FN 2021-11-06 13:30:36 -07:00
mmap.h mm: mmap: remove newline at the end of the trace 2023-03-23 17:18:36 -07:00
mmc.h
mmflags.h mm: discard __GFP_ATOMIC 2023-02-02 22:33:13 -08:00
module.h
mptcp.h mptcp: dump infinite_map field in mptcp_dump_mpext 2022-04-23 11:51:05 +01:00
napi.h
nbd.h
neigh.h neighbor: tracing: Have neigh_create event use __string() 2022-07-15 13:35:59 -04:00
net_probe_common.h
net.h net: Print hashed skb addresses for all net and qdisc events 2022-06-27 11:57:06 +01:00
netfs.h netfs: Add a function to consolidate beginning a read 2022-03-18 09:29:05 +00:00
netlink.h
nilfs2.h fs/nilfs2: Use the enum req_op and blk_opf_t types 2022-07-14 12:14:33 -06:00
nmi.h
objagg.h
oom.h
osnoise.h
page_isolation.h
page_pool.h
page_ref.h mm: introduce PAGEFLAGS_MASK to replace ((1UL << NR_PAGEFLAGS) - 1) 2021-09-08 11:50:24 -07:00
pagemap.h mm/lru: Convert __pagevec_lru_add_fn to take a folio 2021-10-18 07:49:40 -04:00
percpu.h include/trace/events/percpu.h: cleanup for "percpu: improve percpu_alloc_percpu event trace" 2022-05-25 10:47:48 -07:00
power_cpu_migrate.h
power.h cpuidle: Add cpu_idle_miss trace event 2022-08-03 17:50:58 +02:00
preemptirq.h
printk.h
pwc.h
pwm.h pwm/tracing: Also record trace events for failed API calls 2022-12-06 12:46:23 +01:00
qdisc.h net: Print hashed skb addresses for all net and qdisc events 2022-06-27 11:57:06 +01:00
qla.h scsi: qla2xxx: tracing: Use the new __vstring() helper 2022-07-19 11:20:25 -04:00
qrtr.h net: qrtr: correct types of trace event parameters 2023-04-04 18:58:43 -07:00
rcu.h rcu: Fix rcu_torture_read ftrace event 2023-03-22 14:05:24 -07:00
rdma_core.h
regulator.h
rpcgss.h SUNRPC: Record gss_wrap() errors in svcauth_gss_wrap_priv() 2023-02-20 09:20:25 -05:00
rpcrdma.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00
rpm.h
rseq.h tracing/rseq: Add mm_cid field to rseq_update 2022-12-27 12:52:15 +01:00
rtc.h
rv.h rv/monitor: Add the wwnr monitor 2022-07-30 14:01:30 -04:00
rwmmio.h asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info 2022-11-21 22:02:10 +01:00
rxrpc.h rxrpc: Fix overproduction of wakeups to recvmsg() 2023-02-20 08:33:25 +01:00
sched.h sched/tracing: Append prev_state to tp args instead 2022-05-12 00:37:11 +02:00
scmi.h include: trace: Add platform and channel instance references 2023-01-20 11:40:57 +00:00
scsi.h scsi: trace: Print driver_tag and scheduler_tag in SCSI trace 2022-06-21 21:43:23 -04:00
sctp.h
signal.h
siox.h
skb.h net: add location to trace_consume_skb() 2023-02-20 08:28:49 +00:00
smbus.h
sock.h inet: preserve const qualifier in inet_sk() 2023-03-17 08:56:37 +00:00
sof_intel.h ASoC: SOF: Intel: replace dev_vdbg with tracepoints 2022-09-19 15:44:06 +01:00
sof.h ASoC: SOF: replace ipc4-loader dev_vdbg with tracepoints 2022-09-19 15:44:08 +01:00
spi.h
spmi.h spmi: trace: fix stack-out-of-bound access in SPMI tracing functions 2022-07-24 16:16:44 +02:00
sunrpc.h SUNRPC: Clean up the svc_xprt_flags() macro 2023-02-20 09:20:54 -05:00
sunvnet.h
swiotlb.h swiotlb: make the swiotlb_init interface more useful 2022-04-18 07:21:11 +02:00
syscalls.h
target.h
task.h
tcp.h inet: preserve const qualifier in inet_sk() 2023-03-17 08:56:37 +00:00
tegra_apb_dma.h
thermal_power_allocator.h
thermal_pressure.h arch_topology: Trace the update thermal pressure 2022-05-06 09:57:38 +02:00
thermal.h drivers/thermal/cpufreq_cooling : Refactor thermal_power_cpu_get_power tracing 2022-07-28 17:29:42 +02:00
thp.h mm/migration: add trace events for THP migrations 2022-03-24 19:06:45 -07:00
timer.h tracing/timer: Add missing argument documentation of trace points 2022-04-14 16:14:49 +02:00
tlb.h
udp.h
ufs.h
v4l2.h
vb2.h
vmalloc.h mm: vmalloc: add free_vmap_area_noflush trace event 2022-11-08 17:37:17 -08:00
vmscan.h tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate 2022-05-19 14:08:55 -07:00
vsock_virtio_transport_common.h
watchdog.h watchdog: Add tracing events for the most usual watchdog events 2022-10-12 09:47:02 +02:00
wbt.h
workqueue.h workqueue: Fix type of cpu in trace event 2022-06-07 07:09:47 -10:00
writeback.h remove congestion tracking framework 2022-03-22 15:57:01 -07:00
xdp.h
xen.h