---
name: "nfstest_xattr"
section: "1"
platform: "linux"
package: "nfstest"
version: "3.2-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nfstest_xattr"
---

# nfstest\_xattr(1)

Extended Attributes tests

## NAME

nfstest\_xattr - Extended Attributes tests

## SYNOPSIS

nfstest\_xattr --server \<server\> \[options\]

## DESCRIPTION

Verify correct functionality of extended attributes

Extended attributes are name:value pairs associated permanently with files and directories, similar to the environment strings associated with a process. An attribute may be defined or undefined. If it is defined, its value may be empty or non-empty. Extended attributes are extensions to the normal attributes which are associated with all inodes in the system. They are often used to provide additional functionality to a filesystem.

Tests are divided into five groups: getxattr, setxattr, removexattr, listxattr and cinfo. The getxattr tests verify the retrieval of extended attribute values. The setxattr tests verify the creation or modification of extended attributes. The removexattr tests verify the removal of extended attributes. The listxattr tests verify the listing of extended attributes. And finally, the cinfo tests verify the change info returned by the server is correct when the file is either modified or not from a different client.

Furthermore, when a different client is holding a read delegation, verify the delegation is recalled only when creating, modifying or removing an extended attribute. On the other hand, verify the read delegation is not recalled when listing attributes or retrieving their values.

Negative testing is included like retrieval or removal of an extended attribute name which does not exist. Creating an attribute which already exists should fail while using XATTR\_CREATE flag. Trying to modify an attribute which does not exist should fail if using XATTR\_REPLACE flag.

## OPTIONS

- \--version

  show program's version number and exit

- \-h, --help

  show this help message and exit

- \-f FILE, --file=FILE

  File where options are specified besides the system wide file /etc/nfstest, user wide file $HOME/.nfstest or in the current directory .nfstest file

### NFS specific options:

- \-s SERVER, --server=SERVER

  Server name or IP address

- \-e EXPORT, --export=EXPORT

  Exported file system to mount \[default: '/'\]

- \--nfsversion=NFSVERSION

  NFS version, e.g., 3, 4, 4.1, etc. \[default: 4.2\]

- \-m MTPOINT, --mtpoint=MTPOINT

  Mount point \[default: '/mnt/t'\]

- \-p PORT, --port=PORT

  NFS server port \[default: 2049\]

- \--proto=PROTO

  NFS protocol name \[default: 'tcp'\]

- \--sec=SEC

  Security flavor \[default: 'sys'\]

- \--nconnect=NCONNECT

  Multiple TCP connections option \[default: '1'\]

- \-o MTOPTS, --mtopts=MTOPTS

  Mount options \[default: 'hard,rsize=4096,wsize=4096'\]

- \--datadir=DATADIR

  Data directory where files are created, directory is created on the mount point \[default: ''\]

### Logging options:

- \-v VERBOSE, --verbose=VERBOSE

  Verbose level for debug messages \[default:  'opts\|info\|dbg1\|dbg2\|dbg3'\]

- \--tverbose=TVERBOSE

  Verbose level for test messages \[default: '1'\]

- \--createlog

  Create log file

- \--rexeclog

  Create rexec log files

- \--warnings

  Display warnings

- \--tag=TAG

  Informational tag, it is displayed as an INFO message \[default: ''\]

- \--notty

  Do not use terminal colors on output

- \--isatty

  Use terminal colors on output -- useful when running with nohup

### Packet trace options:

- \--createtraces

  Create a packet trace for each test

- \--tbsize=TBSIZE

  Capture buffer size for tcpdump \[default: 192k\]

- \--trcdelay=TRCDELAY

  Seconds to delay before stopping packet trace \[default: 2.0\]

- \--keeptraces

  Do not remove any trace files \[default: remove trace files if no errors\]

- \--rmtraces

  Remove trace files \[default: remove trace files if no errors\]

- \-i INTERFACE, --interface=INTERFACE

  Device interface \[default: automatically selected\]

### File options:

- \--nfiles=NFILES

  Number of files to create \[default: 2\]

- \--filesize=FILESIZE

  File size to use for test files \[default: 64k\]

- \--rsize=RSIZE

  Read size to use when reading files \[default: 4k\]

- \--wsize=WSIZE

  Write size to use when writing files \[default: 4k\]

- \--iodelay=IODELAY

  Seconds to delay I/O operations \[default: 0.1\]

- \--offset-delta=OFFSET\_DELTA

  Read/Write offset delta \[default: 4k\]

### Path options:

- \--sudo=SUDO

  Full path of binary for sudo \[default: '/usr/bin/sudo'\]

- \--kill=KILL

  Full path of binary for kill \[default: '/usr/bin/kill'\]

- \--nfsstat=NFSSTAT

  Full path of binary for nfsstat \[default: '/usr/sbin/nfsstat'\]

- \--tcpdump=TCPDUMP

  Full path of binary for tcpdump \[default: '/usr/sbin/tcpdump'\]

- \--iptables=IPTABLES

  Full path of binary for iptables \[default: '/usr/sbin/iptables'\]

- \--messages=MESSAGES

  Full path of log messages file \[default: '/var/log/messages'\]

- \--trcevents=TRCEVENTS

  Full path of tracing events directory \[default:  '/sys/kernel/debug/tracing/events'\]

- \--trcpipe=TRCPIPE

  Full path of trace pipe file \[default:  '/sys/kernel/debug/tracing/trace\_pipe'\]

- \--tmpdir=TMPDIR

  Temporary directory \[default: '/tmp'\]

### Debug options:

- \--nocleanup

  Do not cleanup created files

- \--notimestamps

  Do not display timestamps in debug messages

- \--bugmsgs=BUGMSGS

  File containing test messages to mark as bugs if they failed

- \--nomount

  Do not mount server and run the tests on local disk space

- \--basename=BASENAME

  Base name for all files and logs \[default: automatically generated\]

- \--nfsdebug=NFSDEBUG

  Set NFS kernel debug flags and save log messages \[default: ''\]

- \--rpcdebug=RPCDEBUG

  Set RPC kernel debug flags and save log messages \[default: ''\]

- \--tracepoints=TRACEPOINTS

  List of trace points modules to enable \[default: ''\]

- \--nfsstats

  Get NFS stats \[default: 'False'\]

- \--pktdisp

  Display main packets related to the given test

- \--nfserrors

  Fail every NFS error found in the packet trace

- \--client-ipaddr=CLIENT\_IPADDR

  IP address of localhost

### Reporting options:

- \--xunit-report

  Generate xUnit compatible test report

- \--xunit-report-file=XUNIT\_REPORT\_FILE

  Path to xout report file

### Test options:

- \--runtest=RUNTEST

  Comma separated list of tests to run, if list starts with a '^' then all tests are run except the ones listed \[default: 'all'\]

- \--num-xattrs=NUM\_XATTRS

  Number of extended attributes to create for listxattr tests with many attributes \[default: 20\]

- \--client=CLIENT

  Remote NFS client and options used for delegation tests. Clients are separated by a ',' and each client definition is a list of arguments separated by a ':' given in the following order if positional arguments is used (see examples): clientname:server:export:nfsversion:port:proto:sec:mtpoint \[default:  'nfsversion=3:proto=tcp:port=2049'\]

- \--client-nfsvers=CLIENT\_NFSVERS

  Comma separated list of valid NFS versions to use in the --client option. An NFS version from this list, which is different than that given by --nfsversion, is selected and included in the --client option \[default: 4.0,4.1\]

## TESTS

### ngetxattr01

```
Verify getting extended attribute
```

### ngetxattr02

```
Verify getting extended attribute fails when attribute does not exist
```

### dgetxattr01

```
Verify getting extended attribute
when delegation is granted on second client
```

### dgetxattr02

```
Verify getting extended attribute fails when attribute does not exist
when delegation is granted on second client
```

### nsetxattr01

```
Verify setting extended attribute with SETXATTR4_EITHER when attribute does not exist
```

### nsetxattr02

```
Verify setting extended attribute with SETXATTR4_CREATE when attribute does not exist
```

### nsetxattr03

```
Verify setting extended attribute with SETXATTR4_REPLACE fails when attribute does not exist
```

### nsetxattr04

```
Verify setting extended attribute with SETXATTR4_EITHER when attribute already exists
```

### nsetxattr05

```
Verify setting extended attribute with SETXATTR4_CREATE fails when attribute already exists
```

### nsetxattr06

```
Verify setting extended attribute with SETXATTR4_REPLACE when attribute already exists
```

### dsetxattr01

```
Verify setting extended attribute with SETXATTR4_EITHER when attribute does not exist
when delegation is granted on second client
```

### dsetxattr02

```
Verify setting extended attribute with SETXATTR4_CREATE when attribute does not exist
when delegation is granted on second client
```

### dsetxattr03

```
Verify setting extended attribute with SETXATTR4_REPLACE fails when attribute does not exist
when delegation is granted on second client
```

### dsetxattr04

```
Verify setting extended attribute with SETXATTR4_EITHER when attribute already exists
when delegation is granted on second client
```

### dsetxattr05

```
Verify setting extended attribute with SETXATTR4_CREATE fails when attribute already exists
when delegation is granted on second client
```

### dsetxattr06

```
Verify setting extended attribute with SETXATTR4_REPLACE when attribute already exists
when delegation is granted on second client
```

### nremovexattr01

```
Verify removing extended attribute
```

### nremovexattr02

```
Verify removing extended attribute fails when attribute does not exist
```

### dremovexattr01

```
Verify removing extended attribute
when delegation is granted on second client
```

### dremovexattr02

```
Verify removing extended attribute fails when attribute does not exist
when delegation is granted on second client
```

### nlistxattr01

```
Verify listing extended attributes with no user namespace attributes
```

### nlistxattr02

```
Verify listing extended attribute
```

### nlistxattr03

```
Verify listing extended attribute (many attributes)
```

### dlistxattr01

```
Verify listing extended attributes with no user namespace attributes
when delegation is granted on second client
```

### dlistxattr02

```
Verify listing extended attribute
when delegation is granted on second client
```

### dlistxattr03

```
Verify listing extended attribute (many attributes)
when delegation is granted on second client
```

### ncinfo01

```
Verify SETXATTR change info with SETXATTR4_EITHER when attribute does not exist
```

### ncinfo02

```
Verify SETXATTR change info with SETXATTR4_EITHER when attribute already exists
```

### ncinfo03

```
Verify SETXATTR change info with SETXATTR4_CREATE when attribute does not exist
```

### ncinfo04

```
Verify SETXATTR change info with SETXATTR4_REPLACE when attribute already exists
```

### mcinfo01

```
Verify SETXATTR change info with SETXATTR4_EITHER when attribute does not exist
when file is modified on second client
```

### mcinfo02

```
Verify SETXATTR change info with SETXATTR4_EITHER when attribute already exists
when file is modified on second client
```

### mcinfo03

```
Verify SETXATTR change info with SETXATTR4_CREATE when attribute does not exist
when file is modified on second client
```

### mcinfo04

```
Verify SETXATTR change info with SETXATTR4_REPLACE when attribute already exists
when file is modified on second client
```

### getxattr

```
Run all GETXATTR tests: ngetxattr01, ngetxattr02, dgetxattr01,
dgetxattr02
```

### ngetxattr

```
Run all GETXATTR tests when no open on second client: ngetxattr01,
ngetxattr02
```

### dgetxattr

```
Run all GETXATTR tests when delegation is granted on second client:
dgetxattr01, dgetxattr02
```

### setxattr

```
Run all SETXATTR tests: nsetxattr01, nsetxattr02, nsetxattr03,
nsetxattr04, nsetxattr05, nsetxattr06, dsetxattr01, dsetxattr02,
dsetxattr03, dsetxattr04, dsetxattr05, dsetxattr06
```

### nsetxattr

```
Run all SETXATTR tests when no open on second client: nsetxattr01,
nsetxattr02, nsetxattr03, nsetxattr04, nsetxattr05, nsetxattr06
```

### dsetxattr

```
Run all SETXATTR tests when delegation is granted on second client:
dsetxattr01, dsetxattr02, dsetxattr03, dsetxattr04, dsetxattr05,
dsetxattr06
```

### removexattr

```
Run all REMOVEXATTR tests: nremovexattr01, nremovexattr02,
dremovexattr01, dremovexattr02
```

### nremovexattr

```
Run all REMOVEXATTR tests when no open on second client: nremovexattr01,
nremovexattr02
```

### dremovexattr

```
Run all REMOVEXATTR tests when delegation is granted on second client:
dremovexattr01, dremovexattr02
```

### listxattr

```
Run all LISTXATTRS tests: nlistxattr01, nlistxattr02, nlistxattr03,
dlistxattr01, dlistxattr02, dlistxattr03
```

### nlistxattr

```
Run all LISTXATTRS tests when no open on second client: nlistxattr01,
nlistxattr02, nlistxattr03
```

### dlistxattr

```
Run all LISTXATTRS tests when delegation is granted on second client:
dlistxattr01, dlistxattr02, dlistxattr03
```

### cinfo

```
Run all CINFO tests: ncinfo01, ncinfo02, ncinfo03, ncinfo04, mcinfo01,
mcinfo02, mcinfo03, mcinfo04
```

### ncinfo

```
Run all CINFO tests when no open on second client: ncinfo01, ncinfo02,
ncinfo03, ncinfo04
```

### mcinfo

```
Run all CINFO tests when file is modified on second client: mcinfo01,
mcinfo02, mcinfo03, mcinfo04
```

### all

```
Run all tests: ngetxattr01, ngetxattr02, dgetxattr01, dgetxattr02,
nsetxattr01, nsetxattr02, nsetxattr03, nsetxattr04, nsetxattr05,
nsetxattr06, dsetxattr01, dsetxattr02, dsetxattr03, dsetxattr04,
dsetxattr05, dsetxattr06, nremovexattr01, nremovexattr02,
dremovexattr01, dremovexattr02, nlistxattr01, nlistxattr02,
nlistxattr03, dlistxattr01, dlistxattr02, dlistxattr03, ncinfo01,
ncinfo02, ncinfo03, ncinfo04, mcinfo01, mcinfo02, mcinfo03, mcinfo04
```

## EXAMPLES

The only required option is --server\
 $ nfstest\_xattr --server 192.168.0.11

## NOTES

The user id in the local host and the host specified by --client must have access to run commands as root using the 'sudo' command without the need for a password.

The user id must be able to 'ssh' to remote host without the need for a password.

Valid only for NFS version 4.2 and above.

## SEE ALSO

**[baseobj(3)](/baseobj/3.md),** **[formatstr(3)](/formatstr/3.md),** **[nfstest.test\_util(3)](/nfstest.test_util/3.md),** **[nfstest\_alloc(1)](/nfstest_alloc/1.md),** **[nfstest\_cache(1)](/nfstest_cache/1.md),** **[nfstest\_delegation(1)](/nfstest_delegation/1.md),** **[nfstest\_dio(1)](/nfstest_dio/1.md),** **[nfstest\_fcmp(1)](/nfstest_fcmp/1.md),** **[nfstest\_file(1)](/nfstest_file/1.md),** **[nfstest\_interop(1)](/nfstest_interop/1.md),** **[nfstest\_io(1)](/nfstest_io/1.md),** **[nfstest\_lock(1)](/nfstest_lock/1.md),** **[nfstest\_pkt(1)](/nfstest_pkt/1.md),** **[nfstest\_pnfs(1)](/nfstest_pnfs/1.md),** **[nfstest\_posix(1)](/nfstest_posix/1.md),** **[nfstest\_rdma(1)](/nfstest_rdma/1.md),** **[nfstest\_sparse(1)](/nfstest_sparse/1.md),** **[nfstest\_ssc(1)](/nfstest_ssc/1.md),** **[nfstest\_xid(1)](/nfstest_xid/1.md),** **[packet.nfs.nfs4\_const(3)](/packet.nfs.nfs4_const/3.md)**

## BUGS

No known bugs.

## AUTHOR

Jorge Mora (mora@netapp.com)
