NFS V4 calls for a NFS v3 mount

From: Toralf FÃrster
Date: Sun Apr 06 2014 - 13:28:41 EST

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Probably a question better suited for a NFS noobs mailing list (is there any around ?) ...

While playing with kernel 3.13.x, wireshark and NFS I realized, that mounting a NFS v3 share results in NFS V4 Calls - is this indented or a wireshark dissector issue ?

$ cat /etc/exports
# /etc/exports: NFS file systems being exported. See exports(5).
/mnt/ramdisk 192.168.0.0/16(rw,fsid=0,insecure,no_subtree_check,async,no_root_squash)

$ grep nfsv3 /etc/fstab
n22:/mnt/ramdisk /mnt/nfsv3 nfs auto,bg,intr,soft

$ ~/devel/wireshark/tshark -r /var/tmp/nfsv3.pcapng.gz
1 0.000000000 127.0.0.1 -> 127.0.0.1 DNS 73 Standard query 0x50bd A n22.fritz.box
2 0.000465000 127.0.0.1 -> 127.0.0.1 DNS 73 Standard query 0xa14f AAAA n22.fritz.box
3 0.006264000 127.0.0.1 -> 127.0.0.1 DNS 119 Standard query response 0x50bd A 192.168.178.21
4 0.007134000 127.0.0.1 -> 127.0.0.1 DNS 115 Standard query response 0xa14f
5 0.017775000 192.168.178.21 -> 192.168.178.21 TCP 74 733 â nfs [SYN] Seq=0 Win=43690 Len=0
6 0.017791000 192.168.178.21 -> 192.168.178.21 TCP 74 nfs â 733 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0
7 0.017808000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [ACK] Seq=1 Ack=1 Win=342 Len=0
8 0.022889000 192.168.178.21 -> 192.168.178.21 NFS 110 V4 NULL Call
9 0.022953000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 733 [ACK] Seq=1 Ack=45 Win=1024 Len=0
10 0.023021000 192.168.178.21 -> 192.168.178.21 NFS 94 V4 NULL Reply (Call In 8)
11 0.023049000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [ACK] Seq=45 Ack=29 Win=342 Len=0
12 0.030779000 192.168.178.21 -> 192.168.178.21 NFS 254 V4 Call SETCLIENTID
13 0.030892000 192.168.178.21 -> 192.168.178.21 NFS 130 V4 Reply (Call In 12) SETCLIENTID
14 0.031247000 192.168.178.21 -> 192.168.178.21 NFS 166 V4 Call SETCLIENTID_CONFIRM
15 0.031433000 192.168.178.21 -> 192.168.178.21 NFS 114 V4 Reply (Call In 14) SETCLIENTID_CONFIRM
16 0.031455000 192.168.178.21 -> 192.168.178.21 TCP 74 945 â 48964 [SYN] Seq=0 Win=43690 Len=0
17 0.031469000 192.168.178.21 -> 192.168.178.21 TCP 74 48964 â 945 [SYN, ACK] Seq=0 Ack=1 Win=32768 Len=0
18 0.031482000 192.168.178.21 -> 192.168.178.21 TCP 66 945 â 48964 [ACK] Seq=1 Ack=1 Win=342 Len=0
19 0.031506000 192.168.178.21 -> 192.168.178.21 NFS 134 V1 CB_NULL Call
20 0.031514000 192.168.178.21 -> 192.168.178.21 TCP 66 48964 â 945 [ACK] Seq=1 Ack=69 Win=256 Len=0
21 0.031527000 192.168.178.21 -> 192.168.178.21 NFS 94 V1 CB_NULL Reply (Call In 19)
22 0.031538000 192.168.178.21 -> 192.168.178.21 TCP 66 945 â 48964 [ACK] Seq=69 Ack=29 Win=342 Len=0
23 0.060368000 192.168.178.21 -> 192.168.178.21 NFS 222 V4 Call PUTROOTFH | GETATTR
24 0.060433000 192.168.178.21 -> 192.168.178.21 NFS 278 V4 Reply (Call In 23) PUTROOTFH | GETATTR
25 0.060500000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
26 0.060550000 192.168.178.21 -> 192.168.178.21 NFS 162 V4 Reply (Call In 25) GETATTR
27 0.060590000 192.168.178.21 -> 192.168.178.21 NFS 230 V4 Call GETATTR FH: 0x62d40c52
28 0.060632000 192.168.178.21 -> 192.168.178.21 NFS 178 V4 Reply (Call In 27) GETATTR
29 0.060674000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
30 0.060714000 192.168.178.21 -> 192.168.178.21 NFS 162 V4 Reply (Call In 29) GETATTR
31 0.060787000 192.168.178.21 -> 192.168.178.21 NFS 230 V4 Call GETATTR FH: 0x62d40c52
32 0.060815000 192.168.178.21 -> 192.168.178.21 NFS 178 V4 Reply (Call In 31) GETATTR
33 0.060857000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
34 0.060885000 192.168.178.21 -> 192.168.178.21 NFS 142 V4 Reply (Call In 33) GETATTR
35 0.061002000 192.168.178.21 -> 192.168.178.21 NFS 226 V4 Call GETATTR FH: 0x62d40c52
36 0.061032000 192.168.178.21 -> 192.168.178.21 NFS 162 V4 Reply (Call In 35) GETATTR
37 0.061074000 192.168.178.21 -> 192.168.178.21 NFS 230 V4 Call GETATTR FH: 0x62d40c52
38 0.061101000 192.168.178.21 -> 192.168.178.21 NFS 258 V4 Reply (Call In 37) GETATTR
39 0.061186000 192.168.178.21 -> 192.168.178.21 NFS 238 V4 Call ACCESS FH: 0x62d40c52, [Check: RD LU MD XT DL]
40 0.061247000 192.168.178.21 -> 192.168.178.21 NFS 194 V4 Reply (Call In 39) ACCESS, [Allowed: RD LU MD XT DL]
41 0.061295000 192.168.178.21 -> 192.168.178.21 NFS 246 V4 Call LOOKUP DH: 0x62d40c52/mnt
42 0.061345000 192.168.178.21 -> 192.168.178.21 NFS 122 V4 Reply (Call In 41) LOOKUP Status: NFS4ERR_NOENT
43 0.081322000 192.168.178.21 -> 192.168.178.21 TCP 66 48964 â 945 [FIN, ACK] Seq=29 Ack=69 Win=256 Len=0
44 0.081520000 192.168.178.21 -> 192.168.178.21 TCP 66 945 â 48964 [FIN, ACK] Seq=69 Ack=30 Win=342 Len=0
45 0.081538000 192.168.178.21 -> 192.168.178.21 TCP 66 48964 â 945 [ACK] Seq=30 Ack=70 Win=256 Len=0
46 0.082241000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [FIN, ACK] Seq=1973 Ack=1317 Win=367 Len=0
47 0.083260000 127.0.0.1 -> 127.0.0.1 Portmap 98 V2 GETPORT Call STAT(100024) V:1 UDP
48 0.083470000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 733 [FIN, ACK] Seq=1317 Ack=1974 Win=1116 Len=0
49 0.083490000 192.168.178.21 -> 192.168.178.21 TCP 66 733 â nfs [ACK] Seq=1974 Ack=1318 Win=367 Len=0
50 0.083660000 127.0.0.1 -> 127.0.0.1 Portmap 70 V2 GETPORT Reply (Call In 47) Port:56333
51 0.083851000 127.0.0.1 -> 127.0.0.1 STAT 82 V1 NULL Call
52 0.083936000 127.0.0.1 -> 127.0.0.1 STAT 66 V1 NULL Reply (Call In 51)
53 0.084347000 192.168.178.21 -> 192.168.178.21 TCP 74 45166 â sunrpc [SYN] Seq=0 Win=43690 Len=0
54 0.084369000 192.168.178.21 -> 192.168.178.21 TCP 74 sunrpc â 45166 [SYN, ACK] Seq=0 Ack=1 Win=43690 Len=0
55 0.084387000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [ACK] Seq=1 Ack=1 Win=342 Len=0
56 0.085096000 192.168.178.21 -> 192.168.178.21 Portmap 126 V2 GETPORT Call NFS(100003) V:3 TCP
57 0.085119000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 45166 [ACK] Seq=1 Ack=61 Win=342 Len=0
58 0.085383000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Reply (Call In 56) Port:2049
59 0.085405000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [ACK] Seq=61 Ack=33 Win=342 Len=0
60 0.085518000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [FIN, ACK] Seq=61 Ack=33 Win=342 Len=0
61 0.085555000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 45166 [FIN, ACK] Seq=33 Ack=62 Win=342 Len=0
62 0.085566000 192.168.178.21 -> 192.168.178.21 TCP 66 45166 â sunrpc [ACK] Seq=62 Ack=34 Win=342 Len=0
63 0.085677000 192.168.178.21 -> 192.168.178.21 TCP 74 34541 â nfs [SYN] Seq=0 Win=43690 Len=0
64 0.085691000 192.168.178.21 -> 192.168.178.21 TCP 74 nfs â 34541 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0
65 0.085705000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [ACK] Seq=1 Ack=1 Win=342 Len=0
66 0.085854000 192.168.178.21 -> 192.168.178.21 NFS 110 V3 NULL Call
67 0.085866000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 34541 [ACK] Seq=1 Ack=45 Win=1024 Len=0
68 0.085888000 192.168.178.21 -> 192.168.178.21 NFS 94 V3 NULL Reply (Call In 66)
69 0.085899000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [ACK] Seq=45 Ack=29 Win=342 Len=0
70 0.085931000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [FIN, ACK] Seq=45 Ack=29 Win=342 Len=0
71 0.085946000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 34541 [FIN, ACK] Seq=29 Ack=46 Win=1024 Len=0
72 0.085954000 192.168.178.21 -> 192.168.178.21 TCP 66 34541 â nfs [ACK] Seq=46 Ack=30 Win=342 Len=0
73 0.086219000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Call MOUNT(100005) V:3 UDP
74 0.086324000 192.168.178.21 -> 192.168.178.21 Portmap 70 V2 GETPORT Reply (Call In 73) Port:36479
75 0.086409000 192.168.178.21 -> 192.168.178.21 MOUNT 82 V3 NULL Call
76 0.086482000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 NULL Reply (Call In 75)
77 0.086803000 192.168.178.21 -> 192.168.178.21 MOUNT 82 V3 NULL Call
78 0.086871000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 NULL Reply (Call In 77)
79 0.086915000 192.168.178.21 -> 192.168.178.21 MOUNT 174 V3 MNT Call /mnt/ramdisk
80 0.088420000 192.168.178.21 -> 192.168.178.21 MOUNT 90 V3 MNT Reply (Call In 79)
81 0.088718000 192.168.178.21 -> 192.168.178.21 TCP 74 56459 â sunrpc [SYN] Seq=0 Win=43690 Len=0
82 0.088733000 192.168.178.21 -> 192.168.178.21 TCP 74 sunrpc â 56459 [SYN, ACK] Seq=0 Ack=1 Win=43690 Len=0
83 0.088750000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [ACK] Seq=1 Ack=1 Win=342 Len=0
84 0.088776000 192.168.178.21 -> 192.168.178.21 Portmap 150 V2 GETPORT Call NFS(100003) V:3 TCP
85 0.088783000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 56459 [ACK] Seq=1 Ack=85 Win=342 Len=0
86 0.088934000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Reply (Call In 84) Port:2049
87 0.088944000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [ACK] Seq=85 Ack=33 Win=342 Len=0
88 0.088989000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [FIN, ACK] Seq=85 Ack=33 Win=342 Len=0
89 0.089028000 192.168.178.21 -> 192.168.178.21 TCP 66 sunrpc â 56459 [FIN, ACK] Seq=33 Ack=86 Win=342 Len=0
90 0.089036000 192.168.178.21 -> 192.168.178.21 TCP 66 56459 â sunrpc [ACK] Seq=86 Ack=34 Win=342 Len=0
91 0.089189000 192.168.178.21 -> 192.168.178.21 TCP 74 957 â nfs [SYN] Seq=0 Win=43690 Len=0
92 0.089201000 192.168.178.21 -> 192.168.178.21 TCP 74 nfs â 957 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0
93 0.089213000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=1 Ack=1 Win=342 Len=0
94 0.089269000 192.168.178.21 -> 192.168.178.21 NFS 110 V3 NULL Call
95 0.089277000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 957 [ACK] Seq=1 Ack=45 Win=1024 Len=0
96 0.089318000 192.168.178.21 -> 192.168.178.21 NFS 94 V3 NULL Reply (Call In 94)
97 0.089325000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=45 Ack=29 Win=342 Len=0
98 0.089492000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 FSINFO Call, FH: 0x62d40c52
99 0.089537000 192.168.178.21 -> 192.168.178.21 NFS 150 V3 FSINFO Reply (Call In 98)
100 0.089574000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 PATHCONF Call, FH: 0x62d40c52
101 0.089607000 192.168.178.21 -> 192.168.178.21 NFS 126 V3 PATHCONF Reply (Call In 100)
102 0.089638000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 GETATTR Call, FH: 0x62d40c52
103 0.089671000 192.168.178.21 -> 192.168.178.21 NFS 182 V3 GETATTR Reply (Call In 102) Directory mode: 1777 uid: 0 gid: 0
104 0.089781000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 FSINFO Call, FH: 0x62d40c52
105 0.089820000 192.168.178.21 -> 192.168.178.21 NFS 150 V3 FSINFO Reply (Call In 104)
106 0.089856000 192.168.178.21 -> 192.168.178.21 NFS 198 V3 GETATTR Call, FH: 0x62d40c52
107 0.089895000 192.168.178.21 -> 192.168.178.21 NFS 182 V3 GETATTR Reply (Call In 106) Directory mode: 1777 uid: 0 gid: 0
108 0.093882000 192.168.178.21 -> 192.168.178.21 NFS 210 V3 FSSTAT Call, FH: 0x62d40c52
109 0.093925000 192.168.178.21 -> 192.168.178.21 NFS 154 V3 FSSTAT Reply (Call In 108)
110 0.103099000 192.168.178.21 -> 192.168.178.21 NFS 210 V3 FSSTAT Call, FH: 0x62d40c52
111 0.103256000 192.168.178.21 -> 192.168.178.21 NFS 154 V3 FSSTAT Reply (Call In 110)
112 0.143185000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=993 Ack=665 Win=342 Len=0
113 0.161139000 192.168.178.21 -> 192.168.178.21 NFS 210 V3 FSSTAT Call, FH: 0x62d40c52
114 0.161353000 192.168.178.21 -> 192.168.178.21 NFS 154 V3 FSSTAT Reply (Call In 113)
115 0.161381000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=1137 Ack=753 Win=342 Len=0
116 2.214247000 192.168.178.21 -> 192.168.178.21 Portmap 98 V2 GETPORT Call MOUNT(100005) V:3 UDP
117 2.214390000 192.168.178.21 -> 192.168.178.21 Portmap 70 V2 GETPORT Reply (Call In 116) Port:36479
118 2.214489000 192.168.178.21 -> 192.168.178.21 MOUNT 82 V3 NULL Call
119 2.214562000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 NULL Reply (Call In 118)
120 2.214662000 192.168.178.21 -> 192.168.178.21 MOUNT 126 V3 UMNT Call /mnt/ramdisk
121 2.214951000 192.168.178.21 -> 192.168.178.21 MOUNT 66 V3 UMNT Reply (Call In 120)
122 2.237210000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [FIN, ACK] Seq=1137 Ack=753 Win=342 Len=0
123 2.237278000 192.168.178.21 -> 192.168.178.21 TCP 66 nfs â 957 [FIN, ACK] Seq=753 Ack=1138 Win=1091 Len=0
124 2.237288000 192.168.178.21 -> 192.168.178.21 TCP 66 957 â nfs [ACK] Seq=1138 Ack=754 Win=342 Len=0

- --
MfG/Sincerely
Toralf FÃrster
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Next message: Paul Bolle: "Re: Kconfig ARM_ERRATA_753970?"
Previous message: One Thousand Gnomes: "Re: [PATCH v3] netconsole: Add tty driver"
Next in thread: Roger Heflin: "Re: NFS V4 calls for a NFS v3 mount"
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