Forum: usbip - OpenLinksys

Kod Pobierz kod źródłowy

      server                      client

      +-------------------+        +-----------------+

      | vhci-hcd (module) |        | usbip (module)  |

      | usbaid (daemon)   |<------>| bind-driver     |

      | device (virtual)  |        | device (real)   |

      +-------------------+        +-----------------+









[Usage]



   server # insmod usbip_common_mod.ko

   server # insmod vhci-hcd.ko

   server # usbaid



   client # insmod usbip_common_mod.ko

   client # insmod usbip.ko

   client # bind-driver --list

   client # bind-driver --export-to server.address --busid busid



Dla tomato sposób użycia jest trochę inny:



Change driver binding for USB/IP.

  --usbip busid        make a device exportable

  --other busid        use a device by a local driver

  --list               print usb devices and their drivers

  --allusbip           make all devices exportable

root@asus:/tmp/home/root# bind_driver --list
List USB devices
- busid 1-1.3 (04f9:001a)
1-1.3:1.0 -> usblp

- busid 1-1.2 (17ef:4513)
1-1.2:1.0 -> usb-storage

- busid 1-2 (3538:0060)
1-2:1.0 -> usb-storage

- busid 1-1 (05e3:0608)
1-1:1.0 -> hub
i potem

root@asus:/tmp/home/root# bind_driver --usbip 1-1.2

** (process:14885): DEBUG: 1-1.2:1.0 -> usb-storage
** (process:14885): DEBUG: unbinding interface
** (process:14885): DEBUG: write "add 1-1.2" to /sys/bus/usb/drivers/usbip/match_busid
Segmentation fault

root@asus:/# bind_driver --usbip 1-1.3
** (process:1264): DEBUG: 1-1.3:1.0 -> usblp
** (process:1264): DEBUG: unbinding interface
** (process:1264): DEBUG: write "add 1-1.3" to /sys/bus/usb/drivers/usbip/match_busid
Segmentation fault

Kod Pobierz kod źródłowy



usbip_common_mod: usbip common driver1.0<6>usbcore: registered new interface driver usbip

usbip:Stub Driver for USB/IP:1.0

CPU 0 Unable to handle kernel paging request at virtual address 00000010, epc == 00000011, ra == 80074fb4

Oops[#1]:

Cpu 0

$ 0   : 00000000 00000076 00000000 00000000

$ 4   : 83049000 802bf480 00000000 00000024

$ 8   : 802dd960 00020000 00000044 c0144744

$12   : 00000200 00000100 00000400 00000007

$16   : 83049000 802bf494 81060920 83049000

$20   : 802bf480 ffffffff 00000010 000000d0

$24   : 00000008 00000011

$28   : 83056000 83057d68 000080d0 80074fb4

Hi    : 00000000

Lo    : 00000000

epc   : 00000011 0x10     Tainted: P

ra    : 80074fb4 __slab_alloc+0x2b0/0x48c

Status: 1100bc03    KERNEL EXL IE

Cause : 00000008

BadVA : 00000010

PrId  : 00019740

Modules linked in: usbip usbip_common_mod tun xt_recent nls_cp852 usblp ohci_hcd ehci_hcd ext2 ext3 jbd mbcache usb_storage sd_mod scsi_wait_scan scsi_mod usbcore nf_nat_pptp nf_conntrack_pptp nf_nat_proto_gre nf_conntrack_proto_gre nf_nat_ftp nf_conntrack_ftp nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h323 wl(P) igs(P) emf(P) et(P)

Process bind_driver (pid: 1264, threadinfo=83056000, task=875d3000)

Stack : 800c56b4 00000000 81146b40 00000001 00000001 c0144744 000080d0 00000000

        875e44cc 00000001 87d1e500 875e4400 00000005 80075a40 87a38a80 87a54690

        fffffff4 8365c580 00000000 00000001 00000001 c0144744 87a56400 875e4460

        c0140a64 80286eef 800c7044 800c7024 87a5646c 879ca4a8 c0144570 c00cfc24

        87a56400 c0144480 87a564c4 802f0000 c01444b0 802dd960 87d1e500 83057f10

        ...

Call Trace:

[<800c56b4>] __sysfs_new_dirent+0x28/0x7c

[<80075a40>] kmem_cache_alloc+0xc0/0xc8

[] stub_probe+0x14c/0x448 [usbip]

[<800c7044>] sysfs_create_link+0x110/0x18c

[<800c7024>] sysfs_create_link+0xf0/0x18c

[] usb_match_one_id+0x0/0x100 [usbcore]

[] usb_probe_interface+0x7c/0x130 [usbcore]

[<80056734>] __alloc_pages+0xa0/0x35c

[<8011bf1c>] driver_probe_device+0xc4/0x29c

[<8011b9dc>] driver_bind+0x124/0x318

[<800c4294>] sysfs_write_file+0x110/0x23c

[<800c4970>] sysfs_release+0xa8/0xf8

[<800791f4>] vfs_write+0xc0/0x15c

[<800791cc>] vfs_write+0x98/0x15c

[<800765a4>] get_unused_fd_flags+0x60/0x14c

[<8007996c>] sys_write+0x58/0xa8

[<80076b68>] do_sys_open+0xd0/0x110

[<80077f6c>] sys_close+0xa4/0xe4

[<8000ff44>] stack_done+0x20/0x40

[<8000ff44>] stack_done+0x20/0x40





Code: (Bad address in epc)

root@asus:/mmc/modules# insmod usbip_common_mod.ko
insmod: can't insert 'usbip_common_mod.ko': invalid module format
root@asus:/mmc/modules# insmod usbip.ko
insmod: can't insert 'usbip.ko': invalid module format
root@asus:/mmc/modules# insmod vhci-hcd.ko
insmod: can't insert 'vhci-hcd.ko': invalid module format

usbip_common_mod: version magic '2.6.22.19 mod_unload MIPS32_R1 32BIT ' should be '2.6.22.19 mod_unload MIPS32_R2 32BIT '
usbip: version magic '2.6.22.19 mod_unload MIPS32_R1 32BIT ' should be '2.6.22.19 mod_unload MIPS32_R2 32BIT '
vhci_hcd: version magic '2.6.22.19 mod_unload MIPS32_R1 32BIT ' should be '2.6.22.19 mod_unload MIPS32_R2 32BIT '

root@asus:/mmc/modules/usbip# usbipd -D
root@asus:/mmc/modules/usbip# bind_driver --usbip 1-1.3
** (process:15337): DEBUG: 1-1.3:1.0 -> usblp
** (process:15337): DEBUG: unbinding interface
** (process:15337): DEBUG: write "add 1-1.3" to /sys/bus/usb/drivers/usbip/match_busid
** Message: bind 1-1.3 to usbip, complete!

Testy, potem próba odmontowania

root@asus:/mmc/modules/usbip# bind_driver --other 1-1.3
** (process:15371): DEBUG: write "del 1-1.3" to /sys/bus/usb/drivers/usbip/match_busid
** Message: bind 1-1.3 to other drivers than usbip, complete!

usbip_common_mod: usbip common driver1.0<6>vhci_hcd: vhci_hcd, 1.0
usbip: proving...
vhci_hcd vhci_hcd: USB/IP Virtual Host Controller
vhci_hcd vhci_hcd: new USB bus registered, assigned bus number 3
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 8 ports detected
usbcore: registered new interface driver usbip
usbip:Stub Driver for USB/IP:1.0
usbip 1-1.3:1.0: USB/IP Stub: register a new device (bus 1 dev 5 ifn 0)
usbip 1-1.3:1.0: stub up
usbip 1-1.3:1.0: recv a header, -512
usblp0: USB Bidirectional printer dev 5 if 0 alt 0 proto 2 vid 0x04F9 pid 0x001A

usbip dbg: usbip_network.c: 249 (tcp_connect ) connected to 192.168.1.1:3240
call from attch here

return from attch here

devfd:0022FF0C

new usb device attached to usbvbus port 1 <-- dotąd OK.

usbip err: usbip_vbus_ui.c: 470 (write_to_sock) send sock len:2096, ret:-1 <-- to w momencie kiedy Skype próbował pobrać obraz

usbip dbg: usbip_network.c: 249 (tcp_connect ) connected to 192.168.1.1:3240
call from attch here

return from attch here

devfd:0022FF0C

new usb device attached to usbvbus port 1 <--- dotąd znów OK

usbip err: usbip_vbus_ui.c: 347 (write_to_dev) read from sock ret 0 not equal a
usbip_header <--- a to znów błąd. Sterownik się nie zainstalował poprawnie