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XROOTD-L  February 2022

XROOTD-L February 2022

Subject:

Re: TLS Issues

From:

Matevz Tadel <[log in to unmask]>

Reply-To:

Support use of xrootd by HEP experiments <[log in to unmask]>

Date:

Tue, 15 Feb 2022 17:25:11 -0800

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (238 lines)

Andy,

What's with the invalid certificate in the client log?

[2022-02-15 09:56:19.549139 -0800][Debug  ][XRootDTransport   ] [transfer-9.ultralight.org:1095.0] Sending out kXR_login request, username: root, cgi: ?xrd.cc=us&xrd.tz=-8&xrd.appname=xrdcp&xrd.info=&xrd.hostname=xrd-cache-3.ultralight.org&xrd.rn=v5.2.0, dual-stack: true, private IPv4: false, private IPv6: false
[2022-02-15 09:56:19.549209 -0800][Debug  ][AsyncSock         ] [transfer-9.ultralight.org:1095.0] TLS hand-shake exchange.

===> HERE:
[2022-02-15 09:56:19.551762 -0800][Error  ][TlsMsg            ] [TLS_Context:] Unable to create TLS context; invalid certificate.

[2022-02-15 09:56:19.551903 -0800][Error  ][AsyncSock         ] [transfer-9.ultralight.org:1095.0] Socket error while handshaking: [FATAL] TLS error
[2022-02-15 09:56:19.551920 -0800][Debug  ][AsyncSock         ] [transfer-9.ultralight.org:1095.0] Closing the socket

Can I run in gdb to get more info? What is good place to start poking?

I was assuming it's the server cert that client does not like ... but it does look ok to me :)

Matevz


On 2/15/22 14:04, Andrew Hanushevsky wrote:
> Hi Bockjoo,
> 
> Unfortunately, that's not the way it works. While gsi doesn't need to use TLS
> ztn does. Since the erver doesn't know which protocol the client will eventually
> settle on, the connection has to use TLS right from the start. That means you
> cannot use ztn with incapable clients.
> 
> Andy
> 
> 
> On Tue, 15 Feb 2022, Bockjoo Kim wrote:
> 
>> Hi Andy,
>>
>> There are two sec.protocols: gsi and ztn.
>>
>> Doesn't the interaction go through gsi and if it fails, will it go through ztn?
>>
>> For incapable clients, the gsi can succeed, no?
>>
>> Thanks,
>>
>> Bockjoo
>>
>> On 2/15/22 14:52, Andrew Hanushevsky wrote:
>>> Hi Justas,
>>>
>>> If you look into the log you will notice a warning that tells you that TLS
>>> will always be on regardless of the "capable" setting because authentication
>>> protocol ztn requires tls. So, this may be the source of the problem,
>>> certainly it will be for incapable clients.
>>>
>>> Andy
>>>
>>>
>>> On Tue, 15 Feb 2022, Justas Balcas wrote:
>>>
>>>> Hi,
>>>>
>>>> Server's/Clients are running > 5.3.X release (not 5.4). I took out 1 server
>>>> from prod and played with full debug mode, on/off tls.
>>>>
>>>> Logs from server/client are available here:
>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__login-2D1.hep.caltech.edu_-7Ejbalcas_tls_&d=DwIDaQ&c=-35OiAkTchMrZOngvJPOeA&r=f2PhPg2_OoVvPAKGXfp4WG1YcdhQC9qsy2uMHw3Z_6k&m=cxGPTdnshuISdao1V4PsW-krXJuMxpk57T8cXetcP32UCNNa9pgqm--1NTcRuVNW&s=tns3GlZokUnAN9f_4ZHOR1kQXE0DrfqOgDK3bos6dS4&e=
>>>>
>>>> To turn TLS, I added this config:
>>>> xrd.tls /etc/grid-security/xrootd/xrootdcert.pem
>>>> /etc/grid-security/xrootd/xrootdkey.pem
>>>> xrd.tlsca certdir /etc/grid-security/certificates
>>>> xrootd.tls capable all
>>>> sec.protocol /usr/lib64 ztn
>>>>
>>>> And with TLS on - I always get:
>>>> TLS hand-shake exchange.
>>>> Socket error while handshaking: [FATAL] TLS error
>>>> Closing the socket
>>>>
>>>>
>>>> If it helps, here is full config:
>>>>
>>>> all.export /tmp stage
>>>> frm.xfr.copycmd /bin/cp /dev/null $PFN
>>>> all.adminpath /var/spool/xrootd
>>>> all.pidpath /var/run/xrootd
>>>>
>>>> # XrootD Security
>>>> # ---------------------------------------
>>>> xrootd.seclib /usr/lib64/libXrdSec.so
>>>> sec.protocol /usr/lib64 gsi -certdir:/etc/grid-security/certificates
>>>> -cert:/etc/grid-security/xrootd/xrootdcert.pem
>>>> -key:/etc/grid-security/xrootd/xrootdkey.pem -crl:3
>>>> -authzfun:libXrdLcmaps.so -authzto:900
>>>> -authzfunparms:lcmapscfg=/etc/xrootd/lcmaps.cfg -gmapopt:10 -gmapto:0
>>>> acc.authdb /etc/xrootd/auth_file_stageout
>>>> ofs.authorize
>>>> macaroons.secretkey /etc/xrootd/macaroon-secret
>>>> ofs.authlib ++ libXrdMacaroons.so
>>>> ofs.authlib ++ libXrdAccSciTokens.so
>>>> # --------------------------------------
>>>> # XrootD Monitoring
>>>> # --------------------------------------
>>>> # Monitoring for AAA Dashboard :
>>>> xrd.report 169.228.130.91:9931 every 30s all sync
>>>> xrootd.monitor all auth flush 30s window 5s fstat 60 lfn ops xfr 5 dest
>>>> files io info user 169.228.130.91:9930 dest fstat info user
>>>> xrd-mon.osgstorage.org:9930
>>>> all.sitename T2_US_Caltech
>>>> # -------------------------------------
>>>> # Configure redirector/server
>>>> # -------------------------------------
>>>> set xrdr = xrootd-redir-stageout.ultralight.org
>>>> xrd.port 1095
>>>> all.manager $(xrdr):1213
>>>>
>>>> if $(xrdr)
>>>>  # It's role is manager
>>>>  all.role manager
>>>>  # Redirect all lookup calls to original data servers. Redirector does not
>>>> have visibility of FS
>>>>  cms.dfs lookup distrib mdhold 20m redirect immed
>>>> else
>>>>  # Role is server
>>>>  all.role server
>>>>  # The known managers (local redirector)
>>>>  all.manager meta $(xrdr):1213
>>>>
>>>>  # Enable xrootd checksum calculation "on-the-fly" using multiuser plugin
>>>>  # This makes XRootD to write the files with the
>>>>  # ownership of the user that authenticated to the server and not as the
>>>>  # 'xrootd' user
>>>>  ofs.osslib ++ libXrdMultiuser.so
>>>>  # Enable the checksum wrapper
>>>>  ofs.ckslib * libXrdMultiuser.so
>>>>  # Control of checksum
>>>>  xrootd.chksum max 10 adler32
>>>>  multiuser.checksumonwrite on
>>>>  multiuser.umask 0002
>>>>
>>>> fi
>>>> # -------------------------------------
>>>> # Allow only specific path, checksum config
>>>> # -------------------------------------
>>>> # Allow any path to be exported; this is further refined in the authfile.
>>>> all.export /
>>>>
>>>> # Hosts allowed to use this xrootd cluster
>>>> cms.allow host *
>>>>
>>>> # Enable xrootd debugging
>>>> xrootd.trace emsg login stall redirect
>>>> cms.trace defer files forward redirect
>>>>
>>>> # Disable async. Related issue:
>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_xrootd_xrootd_issues_1113&d=DwIDaQ&c=-35OiAkTchMrZOngvJPOeA&r=f2PhPg2_OoVvPAKGXfp4WG1YcdhQC9qsy2uMHw3Z_6k&m=cxGPTdnshuISdao1V4PsW-krXJuMxpk57T8cXetcP32UCNNa9pgqm--1NTcRuVNW&s=L2XeYWMRRqstD75CgZb1yCHO9dgWL2K6Uqmqto5rx_Q&e=
>>>> xrootd.async off
>>>>
>>>> # -------------------------------------
>>>> # Integrate with CMS Namespaces
>>>> # It will see files under /store/...
>>>> # -------------------------------------
>>>> oss.localroot /storage/cms
>>>> # -------------------------------------
>>>> # Configure davs/https for TPC
>>>> # -------------------------------------
>>>> # Enable https over XrootD
>>>> if exec xrootd
>>>>  xrd.protocol http:1095 /usr/lib64/libXrdHttp.so
>>>>  http.cadir /etc/grid-security/certificates
>>>>  http.cert /etc/grid-security/xrootd/xrootdcert.pem
>>>>  http.key /etc/grid-security/xrootd/xrootdkey.pem
>>>>  http.secxtractor /usr/lib64/libXrdLcmaps.so
>>>>  http.secretkey XXXXXXX
>>>>  # Enable third-party-copy
>>>>  http.exthandler xrdtpc libXrdHttpTPC.so
>>>>  # Pass the bearer token to the Xrootd authorization framework.
>>>>  http.header2cgi Authorization authz
>>>>  http.listingdeny yes
>>>>  http.desthttps yes
>>>>  http.selfhttps2http no
>>>>  http.staticpreload
>>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__static_robots.txt&d=DwIDaQ&c=-35OiAkTchMrZOngvJPOeA&r=f2PhPg2_OoVvPAKGXfp4WG1YcdhQC9qsy2uMHw3Z_6k&m=cxGPTdnshuISdao1V4PsW-krXJuMxpk57T8cXetcP32UCNNa9pgqm--1NTcRuVNW&s=Laz4x7NvD_fTheDJu5m_cEES6_pePEidCLIAkrYNvPs&e= 
>>>> /etc/xrootd/robots.txt
>>>>  http.exthandler xrdmacaroons libXrdMacaroons.so
>>>> fi
>>>>
>>>>
>>>> xrd.tls /etc/grid-security/xrootd/xrootdcert.pem
>>>> /etc/grid-security/xrootd/xrootdkey.pem
>>>> xrd.tlsca certdir /etc/grid-security/certificates
>>>> xrootd.tls capable all
>>>> sec.protocol /usr/lib64 ztn
>>>>
>>>>
>>>>
>>>> xrootd.trace all
>>>> xrd.trace    all
>>>> ofs.trace    all
>>>> pfc.trace    all
>>>> cms.trace    all
>>>> # To debug connections to the fedration (5 Dump, 4 Debug, 3 Error, 2
>>>> Warning, 1 Info)
>>>> pss.setopt   DebugLevel 4
>>>>
>>>> ########################################################################
>>>> Use REPLY-ALL to reply to list
>>>>
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>>>>
>>>
>>> ########################################################################
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>>
>>
>> ########################################################################
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>>
> 
> ########################################################################
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> 
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> 

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