Any "root" with a *valid* sss.keytab shall be able to have complete access to the xrootd filesystem, whereas any root without it shall only be able read and list as everyone else.
But "removing" a file always works for *any* root from *any* client machine.
There is no feedback on the command line or in the data server logs.
During the "remove file" action the log files are accessed only on the redirector.
When copying logging access happens on the redirector and the data server.
xrootd Version 8.4.2 compiled from source on Lubuntu 16.04.
root@REDIRECTOR build # cmake ../ -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=release -DENABLE_KRB5=false -DENABLE_READLINE=true
-- Could NOT find ceph (missing: RADOS_INCLUDE_DIR RADOS_LIBS)
[I] No git repository info found. Trying to interpret VERSION_INFO
-- ----------------------------------------
-- Installation path: /usr
-- C Compiler: /usr/bin/cc
-- C++ Compiler: /usr/bin/c++
-- Build type: release
-- Plug-in version: 4
--
-- Readline support: yes
-- Fuse support: yes
-- Crypto support: yes
-- Kerberos5 support: disabled
-- XrdCl: yes
-- Tests: disabled
-- HTTP support: yes
-- CEPH support: disabled
-- Python support: yes
-- ----------------------------------------
-- Configuring done
-- Generating done
-- Build files have been written to: /root/xrootd-4.8.2/build
Authfile:
u * /xrootd lr
u root /xrootd lwrnid
xrootd.cf:
xrd.timeout hail 30 idle 0 kill 3 read 5
all.export /xrootd
set xrdr=glogin1.iup.uni-bremen.de
set inventory=/var/log/xrootd/inventory
all.manager $(xrdr):3121
cms.allow host *.iup.uni-bremen.de
if $(xrdr) && named cns
all.export $(inventory)
xrd.port 1095
else if $(xrdr)
all.role manager
oss.defaults rw
xrd.port 1094
else
all.role server
ofs.notify closew create mkdir mv rm rmdir trunc | /usr/bin/XrdCnsd -d -D 2 -i 90 -b $(xrdr):1095:$(inventory)
ofs.notifymsg create $TID create $FMODE $LFN?$CGI
ofs.notifymsg closew $TID closew $LFN $FSIZE
xrootd.seclib /usr/lib/libXrdSec.so
sec.protocol sss -s /etc/xrootd/sss.keytab
acc.authdb /etc/xrootd/Authfile
acc.authrefresh 60
ofs.authorize
cms.space min 100g 110g
fi
Debug logs from the redirector: Removing always works for any root account on any client machine:
xrdfs REDIRECTOR rm /xrootd/myTestDir/index.html
180413 08:57:31 17672 XrdSched: running main accept inq=0
180413 08:57:31 17760 XrdInet: Accepted connection from [log in to unmask]
180413 08:57:31 17760 XrdProtocol: matched protocol xrootd
180413 08:57:31 17760 ?:7@anyMachine XrdPoll: FD 7 attached to poller 0; num=1
180413 08:57:31 17760 ?:7@anyMachine XrootdProtocol: 0000 req=login dlen=97
180413 08:57:31 17760 root.16246:7@anyMachine XrootdResponse: 0000 sending 16 data bytes
180413 08:57:31 17760 XrootdXeq: root.16246:7@anyMachine pvt IPv4 login
180413 08:57:31 17760 root.16246:7@anyMachine XrootdProtocol: 0100 req=rm dlen=28
180413 08:57:31 17760 root.16246:7@anyMachine ofs_remove: f fn=/xrootd/myTestDir/index.html
180413 08:57:31 17760 root.16246:7@anyMachine XrootdProtocol: 0100 rc=0 rm /xrootd/myTestDir/index.html
180413 08:57:31 17760 root.16246:7@anyMachine XrootdResponse: 0100 sending OK
180413 08:57:31 17760 XrootdXeq: root.16246:7@anyMachine disc 0:00:00
180413 08:57:31 17760 root.16246:7@anyMachine XrdPoll: FD 7 detached from poller 0; num=0
Whereas Copying:
XrdSecDEBUG=1 xrdcp index.html root://REDIRECTOR//xrootd/myTestDir/index.html
Without ~/.xrd/sss.keytab file copy is rejected:
180413 08:59:48 17672 XrdInet: Accepted connection from [log in to unmask]
180413 08:59:48 17672 XrdProtocol: matched protocol xrootd
180413 08:59:48 17672 ?:19@anyMachine XrdPoll: FD 19 attached to poller 0; num=1
180413 08:59:48 17672 ?:19@anyMachine XrootdProtocol: 0000 req=login dlen=97
180413 08:59:48 17672 root.16275:19@anyMachine XrootdResponse: 0000 sending 16 data bytes
180413 08:59:48 17672 XrootdXeq: root.16275:19@anyMachine pvt IPv4 login
180413 08:59:48 17673 XrdSched: running main accept inq=0
180413 08:59:48 17672 root.16275:19@anyMachine XrootdProtocol: 0100 req=stat dlen=28
180413 08:59:48 17672 root.16275:19@anyMachine ofs_stat: fn=/xrootd/myTestDir/index.html
180413 08:59:49 17681 Receive REDIRECTOR 4 bytes on 4095
180413 08:59:49 17681 Decode REDIRECTOR delays root.16275:19@anyMachine 5 /xrootd/myTestDir/index.html
180413 08:59:49 17672 root.16275:19@anyMachine XrootdProtocol: 0100 rc=5 stat /xrootd/myTestDir/index.html
180413 08:59:49 17672 root.16275:19@anyMachine XrootdProtocol: 0100 stalling client for 5 sec
180413 08:59:49 17672 root.16275:19@anyMachine XrootdResponse: 0100 sending 4 data bytes; status=4005
180413 08:59:54 17672 root.16275:19@anyMachine XrootdProtocol: 0100 request timeout; read 0 of 24 bytes
180413 08:59:54 17672 XrdPoll: Poller 0 enabled root.16275:19@anyMachine
180413 08:59:54 17760 XrdSched: running root.16275:19@anyMachine inq=0
180413 08:59:54 17760 root.16275:19@anyMachine XrootdProtocol: 0100 req=stat dlen=28
180413 08:59:54 17760 root.16275:19@anyMachine ofs_stat: fn=/xrootd/myTestDir/index.html
180413 08:59:54 17681 Receive REDIRECTOR 47 bytes on 5119
180413 08:59:54 17681 Decode REDIRECTOR gave root.16275:19@anyMachine err -2 'No servers are available to read the file.' /xrootd/myTestDir/index.html
180413 08:59:54 17760 root.16275:19@anyMachine XrootdProtocol: 0100 rc=-1 stat /xrootd/myTestDir/index.html
180413 08:59:54 17760 root.16275:19@anyMachine XrootdResponse: 0100 sending err 3011: No servers are available to read the file.
180413 08:59:54 17760 root.16275:19@anyMachine XrootdProtocol: 0100 req=open dlen=43
180413 08:59:54 17760 root.16275:19@anyMachine XrootdProtocol: 0100 open unmat /xrootd/myTestDir/index.html?oss.asize=9805
180413 08:59:54 17760 root.16275:19@anyMachine ofs_open: 102-40644 fn=/xrootd/myTestDir/index.html
180413 08:59:54 17681 Receive REDIRECTOR 19 bytes on 6143
180413 08:59:54 17681 Decode REDIRECTOR redirects root.16275:19@anyMachine to 192.168.16.122:1094 /xrootd/myTestDir/index.html
180413 08:59:54 17760 root.16275:19@anyMachine XrootdProtocol: 0100 redirecting to 192.168.16.122:1094
180413 08:59:54 17760 root.16275:19@anyMachine XrootdResponse: 0100 sending 18 data bytes; status=4004
180413 08:59:54 17760 root.16275:19@anyMachine ofs_close: use=0 fn=dummy
180413 08:59:54 17760 root.16275:19@anyMachine XrootdProtocol: 0100 req=open dlen=64
180413 08:59:54 17760 root.16275:19@anyMachine XrootdProtocol: 0100 open unmat /xrootd/myTestDir/index.html?oss.asize=9805&tried=192.168.16.122
180413 08:59:54 17760 root.16275:19@anyMachine ofs_open: 102-40644 fn=/xrootd/myTestDir/index.html
180413 08:59:54 17681 Receive REDIRECTOR 45 bytes on 7167
180413 08:59:54 17681 Decode REDIRECTOR gave root.16275:19@anyMachine err -2 'No servers have write access to the file' /xrootd/myTestDir/index.html
180413 08:59:54 17760 root.16275:19@anyMachine XrootdResponse: 0100 sending err 3011: No servers have write access to the file
180413 08:59:54 17760 root.16275:19@anyMachine ofs_close: use=0 fn=dummy
180413 08:59:54 17760 XrootdXeq: root.16275:19@anyMachine disc 0:00:06
180413 08:59:54 17760 root.16275:19@anyMachine XrdPoll: FD 19 detached from poller 0; num=0
With ~/.xrd/sss.keytab file copy is OK:
180413 09:02:29 17760 XrdSched: running main accept inq=0
180413 09:02:29 17672 XrdInet: Accepted connection from [log in to unmask]
180413 09:02:29 17672 XrdProtocol: matched protocol xrootd
180413 09:02:29 17672 ?:19@anyMachine XrdPoll: FD 19 attached to poller 0; num=1
180413 09:02:29 17672 ?:19@anyMachine XrootdProtocol: 0000 req=login dlen=97
180413 09:02:29 17672 root.16357:19@anyMachine XrootdResponse: 0000 sending 16 data bytes
180413 09:02:29 17672 XrootdXeq: root.16357:19@anyMachine pvt IPv4 login
180413 09:02:29 17672 root.16357:19@anyMachine XrootdProtocol: 0100 req=stat dlen=28
180413 09:02:29 17672 root.16357:19@anyMachine ofs_stat: fn=/xrootd/myTestDir/index.html
180413 09:02:29 17681 Receive REDIRECTOR 4 bytes on 8191
180413 09:02:29 17681 Decode REDIRECTOR delays root.16357:19@anyMachine 5 /xrootd/myTestDir/index.html
180413 09:02:29 17672 root.16357:19@anyMachine XrootdProtocol: 0100 rc=5 stat /xrootd/myTestDir/index.html
180413 09:02:29 17672 root.16357:19@anyMachine XrootdProtocol: 0100 stalling client for 5 sec
180413 09:02:29 17672 root.16357:19@anyMachine XrootdResponse: 0100 sending 4 data bytes; status=4005
180413 09:02:34 17672 root.16357:19@anyMachine XrootdProtocol: 0100 req=stat dlen=28
180413 09:02:34 17672 root.16357:19@anyMachine ofs_stat: fn=/xrootd/myTestDir/index.html
180413 09:02:34 17681 Receive REDIRECTOR 47 bytes on 9215
180413 09:02:34 17681 Decode REDIRECTOR gave root.16357:19@anyMachine err -2 'No servers are available to read the file.' /xrootd/myTestDir/index.html
180413 09:02:34 17672 root.16357:19@anyMachine XrootdProtocol: 0100 rc=-1 stat /xrootd/myTestDir/index.html
180413 09:02:34 17672 root.16357:19@anyMachine XrootdResponse: 0100 sending err 3011: No servers are available to read the file.
180413 09:02:34 17672 root.16357:19@anyMachine XrootdProtocol: 0100 req=open dlen=43
180413 09:02:34 17672 root.16357:19@anyMachine XrootdProtocol: 0100 open unmat /xrootd/myTestDir/index.html?oss.asize=9805
180413 09:02:34 17672 root.16357:19@anyMachine ofs_open: 102-40644 fn=/xrootd/myTestDir/index.html
180413 09:02:34 17681 Receive REDIRECTOR 19 bytes on 10239
180413 09:02:34 17681 Decode REDIRECTOR redirects root.16357:19@anyMachine to 192.168.16.122:1094 /xrootd/myTestDir/index.html
180413 09:02:34 17672 root.16357:19@anyMachine XrootdProtocol: 0100 redirecting to 192.168.16.122:1094
180413 09:02:34 17672 root.16357:19@anyMachine XrootdResponse: 0100 sending 18 data bytes; status=4004
180413 09:02:34 17672 root.16357:19@anyMachine ofs_close: use=0 fn=dummy
180413 09:02:34 17672 XrootdXeq: root.16357:19@anyMachine disc 0:00:05
180413 09:02:34 17672 root.16357:19@anyMachine XrdPoll: FD 19 detached from poller 0; num=0
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