Here's my naive first pass. Tested with a modified libtraceevent.
nfsd-1006 [000] 615.380178: nfsd_cb_args: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 prog=1073741824 ident=1
nfsd-1006 [000] 615.380242: nfsd_cb_probe: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 state=UNKNOWN
kworker/u8:5-79 [002] 615.380307: nfsd_cb_setup: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 proto=tcp flavor=sys
kworker/u8:4-78 [001] 615.380459: nfsd_cb_state: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 state=UP
nfsd-1006 [000] 615.380599: nfsd_cb_args: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 prog=1073741824 ident=1
nfsd-1006 [000] 615.380661: nfsd_cb_state: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 state=UNKNOWN
nfsd-1006 [000] 615.380661: nfsd_cb_probe: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 state=UNKNOWN
kworker/u8:4-78 [000] 615.380715: nfsd_cb_setup: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 proto=tcp flavor=sys
kworker/u8:4-78 [000] 615.380865: nfsd_cb_state: addr=192.168.2.67:38673 client 61ddcfcf:54b96b71 state=UP
And in the raw:
nfsd-1006 [000] 615.380178: nfsd_cb_args: cl_boot=61ddcfcf cl_id=54b96b71 prog=1073741824 ident=1 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00]
nfsd-1006 [000] 615.380242: nfsd_cb_probe: state=0x1 cl_boot=61ddcfcf cl_id=54b96b71 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00]
kworker/u8:5-79 [002] 615.380307: nfsd_cb_setup: cl_boot=61ddcfcf cl_id=54b96b71 authflavor=0x1 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00] netid=tcp
kworker/u8:4-78 [001] 615.380459: nfsd_cb_state: state=0x0 cl_boot=61ddcfcf cl_id=54b96b71 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00]
nfsd-1006 [000] 615.380599: nfsd_cb_args: cl_boot=61ddcfcf cl_id=54b96b71 prog=1073741824 ident=1 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00]
nfsd-1006 [000] 615.380661: nfsd_cb_state: state=0x1 cl_boot=61ddcfcf cl_id=54b96b71 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00]
nfsd-1006 [000] 615.380661: nfsd_cb_probe: state=0x1 cl_boot=61ddcfcf cl_id=54b96b71 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00]
kworker/u8:4-78 [000] 615.380715: nfsd_cb_setup: cl_boot=61ddcfcf cl_id=54b96b71 authflavor=0x1 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00] netid=tcp
kworker/u8:4-78 [000] 615.380865: nfsd_cb_state: state=0x0 cl_boot=61ddcfcf cl_id=54b96b71 addr=ARRAY[02, 00, 97, 11, c0, a8, 02, 43, 00, 00, 00, 00, 00, 00, 00, 00]
Comments welcome.
---
Chuck Lever (2):
trace: Introduce helpers to safely handle dynamic-sized sockaddrs
NFSD: Use __sockaddr field to store socket addresses
fs/nfsd/trace.h | 79 ++++++++++++++++++------------------
include/trace/bpf_probe.h | 3 ++
include/trace/perf.h | 3 ++
include/trace/trace_events.h | 18 ++++++++
4 files changed, 63 insertions(+), 40 deletions(-)
--
Chuck Lever
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