[linux-cifs-client] Re: SMB support still missing?

Shirish S Pargaonkar shirishp at us.ibm.com
Fri Feb 9 04:25:02 GMT 2007







linux-cifs-client-bounces+shirishp=us.ibm.com at lists.samba.org wrote on
02/08/2007 10:18:42 PM:

> Okay...
>
> A capture file would be easier, but what I *do* see in the trace below
(in
> the 6th packet) is:
>
>  Called Name: CKFDENECFDEFFCFGEFFCCACACACACACA ==> *SMBSERVER <20>
> Calling Name: FDELDACACACACACACACACACACACACAAA ==> SK0 <00>
>
> Windows/9X doesn't honor the *SMBSERVER name, and I see in the 7th packet
> the following: 8300 0001 82
> ...just near the end of the packet.  That's the CALLED NAME NOT PRESENT
> error I mentioned before.
>
> Steve:  It appears that the client isn't noticing the error, since it
>         seems to be going ahead with the SMB NegProt.
>
> Hope that's useful.
>
> Chris -)-----
>
> Jan Engelhardt wrote:
> >
> > On Feb 8 2007 18:53, Christopher R. Hertel wrote:
> >>>> It does seem to me that it is some sort of name resolution
> issue, but it may
> >>>> have more to do with the multi-homed nature of your setup.
> >>>>
> >>>> Did you try:
> >>>>
> >>>>  mount.cifs //CL0/c /mnt
> >>> Yes, that one _fails_ with "mount error 112 = Host is down"
> (though tcpdump
> >>> _does_ show that cifs connects to port 139 and then disconnects using
FIN)
> >> It would be interesting to see that capture.
> >
> > 01:39:02.089070 IP 192.168.222.94.2019 > 192.168.222.33.445: S
> 870214128:870214128(0) win 5840 <mss 1460,sackOK,timestamp 828349 0,
> nop,wscale 1>
> >    0x0000:  4500 003c ca4d 4000 4006 329d c0a8 de5e  E..<.M at .@.2....^
> >    0x0010:  c0a8 de21 07e3 01bd 33de 69f0 0000 0000  ...!....3.i.....
> >    0x0020:  a002 16d0 a82c 0000 0204 05b4 0402 080a  .....,..........
> >    0x0030:  000c a3bd 0000 0000 0103 0301            ............
> > 01:39:02.092572 IP 192.168.222.33.445 > 192.168.222.94.2019: R 0:
> 0(0) ack 870214129 win 0
> >    0x0000:  4500 0028 f300 0000 8006 09fe c0a8 de21  E..(...........!
> >    0x0010:  c0a8 de5e 01bd 07e3 0000 0000 33de 69f1  ...^........3.i.
> >    0x0020:  5014 0000 ca8f 0000 0000 0000 0000       P.............
> > 01:39:02.096738 IP 192.168.222.94.1343 > 192.168.222.33.139: S
> 870214131:870214131(0) win 5840 <mss 1460,sackOK,timestamp 828352 0,
> nop,wscale 1>
> >    0x0000:  4500 003c ca33 4000 4006 32b7 c0a8 de5e  E..<.3 at .@.2....^
> >    0x0010:  c0a8 de21 053f 008b 33de 69f3 0000 0000  ...!.?..3.i.....
> >    0x0020:  a002 16d0 abfc 0000 0204 05b4 0402 080a  ................
> >    0x0030:  000c a3c0 0000 0000 0103 0301            ............
> > 01:39:02.102544 IP 192.168.222.33.139 > 192.168.222.94.1343: S
> 4435509:4435509(0) ack 870214132 win 8760 <mss 1460,nop,nop,sackOK>
> >    0x0000:  4500 0030 f400 4000 8006 c8f5 c0a8 de21  E..0.. at ........!
> >    0x0010:  c0a8 de5e 008b 053f 0043 ae35 33de 69f4  ...^...?.C.53.i.
> >    0x0020:  7012 2238 d0f0 0000 0204 05b4 0101 0402  p."8............
> > 01:39:02.104880 IP 192.168.222.94.1343 > 192.168.222.33.139: . ack1 win
5840
> >    0x0000:  4500 0028 ca34 4000 4006 32ca c0a8 de5e  E..(.4 at .@.2....^
> >    0x0010:  c0a8 de21 053f 008b 33de 69f4 0043 ae36  ...!.?..3.i..C.6
> >    0x0020:  5010 16d0 091d 0000                      P.......
> > 01:39:02.117326 IP 192.168.222.94.1343 > 192.168.222.33.139: P 1:
> 73(72) ack 1 win 5840 NBT Session Packet: Session Request
> >    0x0000:  4500 0070 ca35 4000 4006 3281 c0a8 de5e  E..p.5 at .@.2....^
> >    0x0010:  c0a8 de21 053f 008b 33de 69f4 0043 ae36  ...!.?..3.i..C.6
> >    0x0020:  5018 16d0 3e34 0000 8100 0044 2043 4b46  P...>4.....D.CKF
> >    0x0030:  4445 4e45 4346 4445 4646 4346 4745 4646  DENECFDEFFCFGEFF
> >    0x0040:  4343 4143 4143 4143 4143 4143 4100 2046  CCACACACACACA..F
> >    0x0050:  4445 4c44 4143 4143 4143 4143 4143 4143  DELDACACACACACAC
> >    0x0060:  4143 4143 4143 4143 4143 4143 4141 4100  ACACACACACACAAA.
> > 01:39:02.121140 IP 192.168.222.33.139 > 192.168.222.94.1343: FP 1:
> 6(5) ack 73 win 8688 NBT Session Packet: [|SMB]
> >    0x0000:  4500 002d f500 4000 8006 c7f8 c0a8 de21  E..-.. at ........!
> >    0x0010:  c0a8 de5e 008b 053f 0043 ae36 33de 6a3c  ...^...?.C.63.j<
> >    0x0020:  5019 21f0 f8a4 0000 8300 0001 8253       P.!..........S
> > 01:39:02.162638 IP 192.168.222.94.1343 > 192.168.222.33.139: . ack7 win
5840
> >    0x0000:  4500 0028 ca36 4000 4006 32c8 c0a8 de5e  E..(.6 at .@.2....^
> >    0x0010:  c0a8 de21 053f 008b 33de 6a3c 0043 ae3c  ...!.?..3.j<.C.<
> >    0x0020:  5010 16d0 08cf 0000                      P.......
> > 01:39:02.173013 IP 192.168.222.94.1343 > 192.168.222.33.139: P 73:
> 155(82) ack 7 win 5840 NBT Session Packet: Session Message
> >    0x0000:  4500 007a ca37 4000 4006 3275 c0a8 de5e  E..z.7 at .@.2u...^
> >    0x0010:  c0a8 de21 053f 008b 33de 6a3c 0043 ae3c  ...!.?..3.j<.C.<
> >    0x0020:  5018 16d0 3e3e 0000 0000 004e ff53 4d42  P...>>.....N.SMB
> >    0x0030:  7200 0000 0000 0180 0000 0000 0000 0000  r...............
> >    0x0040:  0000 0000 0000 950d 0000 0100 002b 0002  .............+..
> >    0x0050:  4c4d 312e 3258 3030 3200 024c 414e 4d41  LM1.2X002..LANMA
> >    0x0060:  4e32 2e31 0002 4e54 204c 4d20 302e 3132  N2.1..NT.LM.0.12
> >    0x0070:  0002 504f 5349 5820 3200                 ..POSIX.2.
> > 01:39:02.317447 IP 192.168.222.94.1343 > 192.168.222.33.139: R
> 155:155(0) ack 7 win 5840
> >    0x0000:  4500 0028 ca38 4000 4006 32c6 c0a8 de5e  E..(.8 at .@.2....^
> >    0x0010:  c0a8 de21 053f 008b 33de 6a8e 0043 ae3c  ...!.?..3.j..C.<
> >    0x0020:  5014 16d0 0879 0000                      P....y..
> >
> >
> >
> > Jan
>
> --
> "Implementing CIFS - the Common Internet FileSystem" ISBN: 013047116X
> Samba Team -- http://www.samba.org/     -)-----   Christopher R. Hertel
> jCIFS Team -- http://jcifs.samba.org/   -)-----   ubiqx development,
uninq.
> ubiqx Team -- http://www.ubiqx.org/     -)-----   crh at ubiqx.mn.org
> OnLineBook -- http://ubiqx.org/cifs/    -)-----   crh at ubiqx.org
> _______________________________________________
> linux-cifs-client mailing list
> linux-cifs-client at lists.samba.org
> https://lists.samba.org/mailman/listinfo/linux-cifs-client

Chris,

No, clients gives up once the Negative session response with error code
0x82 is received,
no negotiate protocol is sent. That is what I see using ethereal.

Regards,

Shirish
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