[LTP] report a error about vlan01.sh

[sunlianwen]

Hi Alexey

     I find a error about ltp vlan01 test case, but I not sure whether I 
think is right. and the author of this case is your, if possible I hope you

   revise this case.

   error info "RTNETLINK answers: Numerical result out of range" will 
see when exec vlan01 testcase , and I debug this case. I find

   this error info cause by vlanID, because the range of vlanID is 
"0-4095", so when exec "ip link add link eth1 name ltp_v4095

   type vlan id 4095 protocol 802.1Q loose_binding off reorder_hdr on"  
the error will happen.

   whether  can revise the virt_multiple_add_test() function, let the 
vlanid range is fixed  "1-2000".


the path of error file: ltp/testcases/network/virt/virt_lib.sh

144 virt_multiple_add_test()
145 {
146         local opt="$@"
147         local max=$(($start_id + $NS_TIMES - 1))
148
149         tst_resm TINFO "add $NS_TIMES $virt_type, then delete"
150
151         for i in $(seq $start_id $max); do
152                 virt_add ltp_v$i id $i $opt || \
153                         tst_brkm TFAIL "failed to create 'ltp_v0 $opt'"
154                 ROD_SILENT "ip link set ltp_v$i up"
155         done
156
157         for i in $(seq $start_id $max); do
158                 ROD_SILENT "ip link set ltp_v$i down"
159                 ROD_SILENT "ip link delete ltp_v$i"
160         done
161
162         tst_resm TPASS "done"
163 }

file path: iproute-4.11.0-0.el7/ip/iplink_vlan.c

21 static void print_explain(FILE *f)
  22 {
  23         fprintf(f,
  24                 "Usage: ... vlan id VLANID\n"
  25                 "                [ protocol VLANPROTO ]\n"
  26                 "                [ reorder_hdr { on | off } ]\n"
  27                 "                [ gvrp { on | off } ]\n"
  28                 "                [ mvrp { on | off } ]\n"
  29                 "                [ loose_binding { on | off } ]\n"
  30                 "                [ ingress-qos-map QOS-MAP ]\n"
  31                 "                [ egress-qos-map QOS-MAP ]\n"
  32                 "\n"
  33              "VLANID := 0-4095\n"
  34                 "VLANPROTO: [ 802.1Q / 802.1ad ]\n"
  35                 "QOS-MAP := [ QOS-MAP ] QOS-MAPPING\n"
  36                 "QOS-MAPPING := FROM:TO\n"
  37         );
  38 }

line 33 ,we can know, the range of VlANID is 0-4095


the  vlan01 test result is below

<<<test_output>>>
incrementing stop
vlan01 1 TINFO: Network config (local -- remote):
vlan01 1 TINFO: eth1 -- eth1
vlan01 1 TINFO: 192.168.122.44/24 -- 192.168.122.46/24
vlan01 1 TINFO: fec0:0:0:1::1/64 -- fec0:0:0:1::2/64
vlan01 1 TINFO: add vlan with ''
vlan01 1 TINFO: add 2000 vlan, then delete
vlan01 1 TPASS: done
vlan01 2 TINFO: add vlan with 'protocol 802.1Q loose_binding off 
reorder_hdr off'
vlan01 2 TINFO: add 2000 vlan, then delete
vlan01 2 TPASS: done
vlan01 3 TINFO: add vlan with 'protocol 802.1Q loose_binding off 
reorder_hdr on'
vlan01 3 TINFO: add 2000 vlan, then delete
*RTNETLINK answers: Numerical result out of range**
**vlan01 3 TFAIL: failed to create 'ltp_v0 protocol 802.1Q loose_binding 
off reorder_hdr on'*
vlan01 4 TINFO: cleanup virtual interfaces...
<<<execution_status>>>
initiation_status="ok"
duration=85 termination_type=exited termination_id=1 corefile=no
cutime=1322 cstime=2449
<<<test_end>>>
INFO: ltp-pan reported some tests FAIL
LTP Version: 20180118

###############################################################

             Done executing testcases.
             LTP Version:  20180118
###############################################################

That is all  ,thanks very much.



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