illumos gate

As i understand 'dladm' and 'ipadm' should work together, because 'dladm' creates objects, that can be used by 'ipadm'.

1. 'dladm' can create a link. max length of the link name EQ '32' http://src.illumos.org/source/xref/illumos-gate/usr/src/uts/common/sys/param.h#203

2. i tried to create the following vlan:

# dladm create-vlan -l e1000g2 -v 12 vlan1234567890qwertyuiopasdfgh1

3. The vlan was successfully created:

# dladm show-vlan vlan1234567890qwertyuiopasdfgh1
LINK            VID      OVER         FLAGS
vlan1234567890qwertyuiopasdfgh1 12 e1000g2 -----

4. After that i tried to create AddrObject on the vlan:

# ipadm create-addr -T static -a 10.3.10.8/24 vlan1234567890qwertyuiopasdfgh1/ipv5

5. The AddrObject was successfully created:

# ipadm show-addr vlan1234567890qwertyuiopasdfgh1/ipv5
ADDROBJ           TYPE     STATE        ADDR
vlan1234567890qwertyuiopasdfgh1/ipv5 static ok 10.3.10.8/24

6. After that i tried to create another AddrObject on the link, but could not:

# ipadm create-addr -T static -a 10.3.11.8/24 vlan1234567890qwertyuiopasdfgh1/ipv7
ipadm: Could not create address: Operation failed

You can see truss output in the attachment file. Also i found that it returns the error here: http://src.illumos.org/source/xref/illumos-gate/usr/src/uts/common/inet/ip/ip_if.c#11935

Stack trace:

# dtrace -n ':::ip_sioctl_addif:entry {stack(); ustack()}' -c 'ipadm create-addr -T static -a 10.3.11.8/24 vlan1234567890qwertyuiopasdfgh1/ipv7'
dtrace: description ':::ip_sioctl_addif:entry ' matched 1 probe
ipadm: Could not create address: Operation failed
CPU     ID                    FUNCTION:NAME
  0  58075           is_lifname_valid:entry 
              ip`ipif_insert+0x130
              ip`ipif_allocate+0x245
              ip`ip_sioctl_addif+0x2e8
              ip`ip_process_ioctl+0x2ab
              ip`ip_wput_nondata+0x2fa
              ip`ip_helper_wput+0x38
              unix`putnext+0x21e
              genunix`strdoioctl+0x535
              genunix`strioctl+0x469b
              genunix`ldi_ioctl+0x8f
              ip`udp_ioctl+0xc4
              sockfs`so_ioctl+0x147
              sockfs`socket_ioctl+0x2a
              sockfs`socket_vop_ioctl+0x29
              genunix`fop_ioctl+0x7b
              genunix`ioctl+0x18e
              unix`_sys_sysenter_post_swapgs+0x149

              libc.so.1`ioctl+0x15
              libipadm.so.1`i_ipadm_create_addr+0xee
              libipadm.so.1`ipadm_create_addr+0x3e7
              ipadm`do_create_addr+0x45b
              ipadm`main+0x122
              ipadm`_start+0x7d

dtrace: pid 9579 exited with status 1

When i created the first AddrObject on the vlan i was following stack trace:

# dtrace -n ':::is_lifname_valid:entry {stack(); ustack()}' -c 'ipadm create-addr -T static -a 10.3.10.8/24 vlan1234567890qwertyuiopasdfgh1/ipv5'
dtrace: description ':::is_lifname_valid:entry ' matched 1 probe
CPU     ID                    FUNCTION:NAME
  0  58075           is_lifname_valid:entry
              ip`ipif_insert+0x191
              ip`ipif_allocate+0x435
              ip`ip_ll_subnet_defaults+0x35f
              ip`ip_rput_dlpi_writer+0xb0
              ip`qwriter_ip+0x7a
              ip`ip_rput_dlpi+0x214
              ip`ip_rput_notdata+0x151
              ip`ip_rput+0x62
              unix`putnext+0x21e
              genunix`qreply+0x2e
              dld`proto_info_req+0x231
              dld`dld_proto+0x97
              dld`dld_wput_nondata_task+0x8b
              genunix`taskq_d_thread+0xb1
              unix`thread_start+0x8

  0  58075           is_lifname_valid:entry 
              ip`ipif_insert+0x191
              ip`ipif_allocate+0x435
              ip`ip_ll_subnet_defaults+0x35f
              ip`ip_rput_dlpi_writer+0xb0
              ip`qwriter_ip+0x7a
              ip`ip_rput_dlpi+0x214
              ip`ip_rput_notdata+0x151
              ip`ip_rput+0x62
              unix`putnext+0x21e
              genunix`qreply+0x2e
              dld`proto_info_req+0x231
              dld`dld_proto+0x97
              dld`dld_wput_nondata_task+0x8b
              genunix`taskq_d_thread+0xb1
              unix`thread_start+0x8

7. I tried to create another vlan (name length 15) and repeat all above operations:

# dladm create-vlan -l e1000g2 -v 15 vlanqwertyuiop1

# dladm show-vlan
LINK            VID      OVER         FLAGS
vlanqwertyuiop1 15       e1000g2      -----

# ipadm create-addr -T static -a 10.3.10.2/24 vlanqwertyuiop1/ipv1

# ipadm show-addr vlanqwertyuiop1/ipv1
ADDROBJ           TYPE     STATE        ADDR
vlanqwertyuiop1/ipv1 static ok          10.3.10.2/24

# ipadm create-addr -T static -a 10.3.11.2/24 vlanqwertyuiop1/ipv2

ipadm show-addr vlanqwertyuiop1/ipv2
ADDROBJ           TYPE     STATE        ADDR
vlanqwertyuiop1/ipv2 static ok          10.3.11.2/24

# ipadm show-addr vlanqwertyuiop1/
ADDROBJ           TYPE     STATE        ADDR
vlanqwertyuiop1/ipv1 static ok          10.3.10.2/24
vlanqwertyuiop1/ipv2 static ok          10.3.11.2/24

As you can see second experiment finished without error.