smbstatus — report on current Samba connections
smbstatus
[-p|--processes] [-v|--verbose] [-L|--locks] [-S|--shares] [-N|--notify] [-u|--user=STRING] [-b|--brief] [-P|--profile] [-R|--profile-rates] [-B|--byterange] [-n|--numeric] [-f|--fast] [-j|--json] [--resolve-uids] [-?|--help] [--usage] [-d|--debuglevel=DEBUGLEVEL] [--debug-stdout] [--configfile=CONFIGFILE] [--option=name=value] [-l|--log-basename=LOGFILEBASE] [--leak-report] [--leak-report-full]
This tool is part of the samba(7) suite.
smbstatus
is a very simple program to
list the current Samba connections.
If samba has been compiled with the profiling option, print only the contents of the profiling shared memory area.
If samba has been compiled with the profiling option, print the contents of the profiling shared memory area and the call rates.
gives brief output.
gives verbose output.
causes smbstatus to only list locks.
causes smbstatus to include byte range locks.
print a list of smbd(8) processes and exit. Useful for scripting.
causes smbstatus to only list shares.
causes smbstatus to display registered file notifications
causes smbstatus to not check if the status data is valid by checking if the processes that the status data refer to all still exist. This speeds up execution on busy systems and clusters but might display stale data of processes that died without cleaning up properly.
selects information relevant to username
only.
causes smbstatus to display numeric UIDs and GIDs instead of resolving them to names.
Output more detailed information in JSON format instead of human readable. The output has the following format:
{ "timestamp": "2022-04-15T18:25:15.364891+0200", "version": "4.17.0pre1-GIT-a0f12b9c80b", "smb_conf": "/opt/samba/etc/smb.conf", "sessions": { "3639217376": { "session_id": "3639217376", "server_id": { "pid": "69650", "task_id": "0", "vnn": "4294967295", "unique_id": "10756714984493602300" }, "uid": 1000, "gid": 1000, "username": "johndoe", "groupname": "johndoe", "remote_machine": "127.0.0.1", "hostname": "ipv4:127.0.0.1:59944", "session_dialect": "SMB3_11", "encryption": { "cipher": "", "degree": "none" }, "signing": { "cipher": "AES-128-GMAC", "degree": "partial" } } }, "tcons": { "3813255619": { "service": "sharename", "server_id": { "pid": "69650", "task_id": "0", "vnn": "4294967295", "unique_id": "10756714984493602300" }, "tcon_id": "3813255619", "session_id": "3639217376", "machine": "127.0.0.1", "connected_at": "2022-04-15T17:30:37+0200", "encryption": { "cipher": "AES-128-GMAC", "degree": "full" }, "signing": { "cipher": "", "degree": "none" } } }, "open_files": { "/home/johndoe/testfolder/sample": { "service_path": "/home/johndoe/testfolder", "filename": "sample", "fileid": { "devid": 59, "inode": 11404245, "extid": 0 }, "num_pending_deletes": 0, "opens": { "56839/2": { "server_id": { "pid": "69650", "task_id": "0", "vnn": "4294967295", "unique_id": "10756714984493602300" }, "uid": 1000, "share_file_id": 2, "sharemode": { "hex": "0x00000003", "NONE": false, "READ": true, "WRITE": true, "DELETE": false, "text": "RW" }, "access_mask": { "hex": "0x00000003", "READ_DATA": true, "WRITE_DATA": true, "APPEND_DATA": false, "READ_EA": false, "WRITE_EA": false, "EXECUTE": false, "READ_ATTRIBUTES": false, "WRITE_ATTRIBUTES": false, "DELETE_CHILD": false, "DELETE": false, "READ_CONTROL": false, "WRITE_DAC": false, "SYNCHRONIZE": false, "ACCESS_SYSTEM_SECURITY": false, "text": "RW" }, "caching": { "READ": false, "WRITE": false, "HANDLE": false, "hex": "0x00000000", "text": "" }, "oplock": {}, "lease": {}, "opened_at": "2022-04-15T17:30:38+0200" } } } } }
If oplocks are used:
"oplock": { "EXCLUSIVE": false, "BATCH": false, "LEVEL_II": true, "LEASE": false, "text": "LEVEL_II" }
If leases are used:
"lease": { "lease_key": "29316055-f55c-de10-c813-af7bf5a430bb", "hex": "0x00000005", "READ": true, "WRITE": true, "HANDLE": false, "text": "RW" }
With byte-range locks (-B, --byterange):
"byte_range_locks": { "/home/johndoe/testfolder/sample": { "fileid": { "devid": 59, "inode": 11404245, "extid": 0 }, "file_name": "sample", "share_path": "/home/johndoe/testfolder", "locks": [ { "server_id": { "pid": "69650", "task_id": "0", "vnn": "4294967295", "unique_id": "10756714984493602300" }, "type": "R", "flavour": "Posix", "start": 0, "size": 16 } ] }
With notifies (-N, --notify):
"notify": { "77247": { "server_id": { "pid": "69650", "task_id": "0", "vnn": "4294967295", "unique_id": "10756714984493602300" }, "path": "/home/johndoe/testfolder/testdir", "filter": 4095, "subdir_filter": 4095, "creation_time": "1970-01-01T01:00:14.326582+01:00" } }
For profiling (-P, --profile):
{ "timestamp": "2022-04-15T18:40:43.112216+0200", "version": "4.17.0pre1-GIT-a0f12b9c80b", "smb_conf": "/opt/samba/etc/smb.conf", "SMBD loop": { "connect": { "count": 2 }, "disconnect": { "count": 1 }, ... }, "System Calls": { "syscall_opendir": { "count": 0, "time": 0 }, ... }, "ACL Calls": { "get_nt_acl": { "count": 0, "time": 0 }, ... }, "Stat Cache": { "statcache_lookups": { "count": 2 }, ... }, "SMB Calls": { "SMBmkdir": { "count": 0, "time": 0 }, ... }, "Trans2 Calls": { "Trans2_open": { "count": 0, "time": 0 }, ... }, "NT Transact Calls": { "NT_transact_create": { "count": 0, "time": 0 }, ... }, "SMB2 Calls": { "smb2_negprot": { "count": 2, "time": 3060, "idle": 0, "inbytes": 452, "outbytes": 568 }, ... } }
Print a summary of command line options.
Display brief usage message.
level
is an integer from 0
to 10. The default value if this parameter is not
specified is 1 for client applications.
The higher this value, the more detail will be logged to the log files about the activities of the server. At level 0, only critical errors and serious warnings will be logged. Level 1 is a reasonable level for day-to-day running - it generates a small amount of information about operations carried out.
Levels above 1 will generate considerable amounts of log data, and should only be used when investigating a problem. Levels above 3 are designed for use only by developers and generate HUGE amounts of log data, most of which is extremely cryptic.
Note that specifying this parameter here will override
the log level parameter in the
${prefix}/etc/smb.conf
file.
This will redirect debug output to STDOUT. By default all clients are logging to STDERR.
The file specified contains the configuration details
required by the client. The information in this file
can be general for client and server or only provide
client specific like options such as
client smb encrypt. See
${prefix}/etc/smb.conf
for more information. The default
configuration file name is determined at compile time.
Set the smb.conf(5) option "<name>" to value "<value>" from the command line. This overrides compiled-in defaults and options read from the configuration file. If a name or a value includes a space, wrap whole --option=name=value into quotes.
Base directory name for log/debug files. The extension
".progname"
will be appended (e.g.
log.smbclient, log.smbd, etc...). The log file is never
removed by the client.
Enable talloc leak reporting on exit.
Enable full talloc leak reporting on exit.
Prints the program version number.