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DHCP Client not running with USB-OTG ethernet #91

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smrqdt opened this issue Oct 27, 2023 · 3 comments
Open

DHCP Client not running with USB-OTG ethernet #91

smrqdt opened this issue Oct 27, 2023 · 3 comments
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@mhennerich

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@smrqdt
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smrqdt commented Oct 27, 2023

I’m trying to use my Pluto with a rtl8153 usb ethernet dongle, but is seems the DHCP client is broken.

I logged in using the UART on the power USB port, and the link gets up, but the pluto seems not run a DHCP client:

3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:e0:4c:20:e6:4a brd ff:ff:ff:ff:ff:ff

After a short while avahi assigns a link-local address:

3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:e0:4c:20:e6:4a brd ff:ff:ff:ff:ff:ff
    inet 169.254.10.95/16 brd 169.254.255.255 scope link eth0:avahi
       valid_lft forever preferred_lft forever

When I run ifup usb0 (after ifdown usb0, if avahi already assigned an address), the interface immediately gets an IP assigned via DHCP and everything works as it should:

# ip a show dev eth0
5: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:e0:4c:20:e6:4a brd ff:ff:ff:ff:ff:ff
# ifup eth0
udhcpc: started, v1.35.0
udhcpc: broadcasting discover
udhcpc: broadcasting discover
udhcpc: broadcasting select for 10.11.128.22, server 10.11.128.1
udhcpc: lease of 10.11.128.22 obtained from 10.11.128.1, lease time 600
deleting routers
adding dns 10.11.128.1
# ip a show dev eth0
5: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:e0:4c:20:e6:4a brd ff:ff:ff:ff:ff:ff
    inet 10.11.128.22/24 brd 10.11.128.255 scope global eth0
       valid_lft forever preferred_lft forever

my config.txt:

[USB_ETHERNET]
ipaddr_eth = 
netmask_eth = 255.255.255.0

The generated config seems fine:

# cat /etc/network/interfaces 
auto lo
iface lo inet loopback

auto usb0
iface usb0 inet static
        address 192.168.2.1
        netmask 255.255.255.0

auto usb1
iface usb1 inet dhcp

auto eth0
iface eth0 inet dhcp

log output:

# tail /var/log/messages -n 20
Jan  1 00:11:50 (none) kern.info kernel: hub 1-0:1.0: 1 port detected
Jan  1 00:11:50 (none) kern.info kernel: usb 1-1: new high-speed USB device number 2 using ci_hdrc
Jan  1 00:11:50 (none) kern.info kernel: usb 1-1: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=30.00
Jan  1 00:11:50 (none) kern.info kernel: usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
Jan  1 00:11:50 (none) kern.info kernel: usb 1-1: Product: USB 10/100/1000 LAN
Jan  1 00:11:50 (none) kern.info kernel: usb 1-1: Manufacturer: Realtek
Jan  1 00:11:50 (none) kern.info kernel: usb 1-1: SerialNumber: 000001000000
Jan  1 00:11:51 (none) kern.info kernel: usb 1-1: reset high-speed USB device number 2 using ci_hdrc
Jan  1 00:11:51 (none) kern.warn kernel: r8152 1-1:1.0: Direct firmware load for rtl_nic/rtl8153a-3.fw failed with error -2
Jan  1 00:11:51 (none) kern.warn kernel: r8152 1-1:1.0: unable to load firmware patch rtl_nic/rtl8153a-3.fw (-2)
Jan  1 00:11:51 (none) kern.info kernel: r8152 1-1:1.0 eth0: v1.11.11
Jan  1 00:11:54 (none) kern.info kernel: r8152 1-1:1.0 eth0: carrier on
Jan  1 00:12:00 (none) daemon.info avahi-autoipd(eth0)[2232]: Found user 'avahi' (UID 100) and group 'avahi' (GID 101).
Jan  1 00:12:00 (none) daemon.info avahi-autoipd(eth0)[2232]: Successfully dropped root privileges.
Jan  1 00:12:00 (none) daemon.info avahi-autoipd(eth0)[2232]: Starting with address 169.254.10.95
Jan  1 00:12:06 (none) daemon.info avahi-autoipd(eth0)[2232]: Callout BIND, address 169.254.10.95 on interface eth0
Jan  1 00:12:06 (none) daemon.info avahi-daemon[307]: Joining mDNS multicast group on interface eth0.IPv4 with address 169.254.10.95.
Jan  1 00:12:06 (none) daemon.info avahi-daemon[307]: New relevant interface eth0.IPv4 for mDNS.
Jan  1 00:12:06 (none) daemon.info avahi-daemon[307]: Registering new address record for 169.254.10.95 on eth0.IPv4.
Jan  1 00:12:10 (none) daemon.info avahi-autoipd(eth0)[2232]: Successfully claimed IP address 169.254.10.95

I can provide necessary debug logs if you tell me where i can find them as I’m not familiar with the system layout.
@mhennerich mhennerich self-assigned this Oct 30, 2023
@mhennerich
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I can confirm you observation if I plug a USB Ethernet adapter without a connection to a DHCP enabled network.

# dmesg -n7
# 
# ci_hdrc ci_hdrc.0: EHCI Host Controller
ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.15
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: EHCI Host Controller
usb usb1: Manufacturer: Linux 5.15.0-175859-g5e2092fb8a27 ehci_hcd
usb usb1: SerialNumber: ci_hdrc.0
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
usb 1-1: new high-speed USB device number 2 using ci_hdrc
usb 1-1: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=30.00
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
usb 1-1: Product: USB 10/100/1000 LAN
usb 1-1: Manufacturer: Realtek
usb 1-1: SerialNumber: 000000
usb 1-1: reset high-speed USB device number 2 using ci_hdrc
r8152 1-1:1.0: Direct firmware load for rtl_nic/rtl8153a-4.fw failed with error -2
r8152 1-1:1.0: unable to load firmware patch rtl_nic/rtl8153a-4.fw (-2)
r8152 1-1:1.0 eth0: v1.12.11

# ifconfig 
eth0      Link encap:Ethernet  HWaddr A0:CE:C8:D7:D1:3F  
UP BROADCAST MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
inet addr:127.0.0.1  Mask:255.0.0.0
UP LOOPBACK RUNNING  MTU:65536  Metric:1
RX packets:14 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:1591 (1.5 KiB)  TX bytes:1591 (1.5 KiB)

usb0      Link encap:Ethernet  HWaddr 00:05:F7:A8:1C:C2  
inet addr:192.168.2.1  Bcast:0.0.0.0  Mask:255.255.255.0
UP BROADCAST MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)


# ifconfig 
eth0      Link encap:Ethernet  HWaddr A0:CE:C8:D7:D1:3F  
UP BROADCAST MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

eth0:avahi Link encap:Ethernet  HWaddr A0:CE:C8:D7:D1:3F  
inet addr:169.254.14.128  Bcast:169.254.255.255  Mask:255.255.0.0
UP BROADCAST MULTICAST  MTU:1500  Metric:1

lo        Link encap:Local Loopback  
inet addr:127.0.0.1  Mask:255.0.0.0
UP LOOPBACK RUNNING  MTU:65536  Metric:1
RX packets:14 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:1591 (1.5 KiB)  TX bytes:1591 (1.5 KiB)

usb0      Link encap:Ethernet  HWaddr 00:05:F7:A8:1C:C2  
inet addr:192.168.2.1  Bcast:0.0.0.0  Mask:255.255.255.0
UP BROADCAST MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

#

However in case the USB Ethernet adapter is connected to a network.
Things work for me expected. Please see below.

PlutoSDR firmware uses a very lightweight mdev hotplug manager.
(mdev is a udev replacement from Busybox)
It supports some basic hotplug events. I don't we can use it for link-up type of events.

# dmesg -n7
# ci_hdrc ci_hdrc.0: EHCI Host Controller
ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.15
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: EHCI Host Controller
usb usb1: Manufacturer: Linux 5.15.0-175859-g5e2092fb8a27 ehci_hcd
usb usb1: SerialNumber: ci_hdrc.0
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
usb 1-1: new high-speed USB device number 2 using ci_hdrc
usb 1-1: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=30.00
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
usb 1-1: Product: USB 10/100/1000 LAN
usb 1-1: Manufacturer: Realtek
usb 1-1: SerialNumber: 000000
usb 1-1: reset high-speed USB device number 2 using ci_hdrc
r8152 1-1:1.0: Direct firmware load for rtl_nic/rtl8153a-4.fw failed with error -2
r8152 1-1:1.0: unable to load firmware patch rtl_nic/rtl8153a-4.fw (-2)
r8152 1-1:1.0 eth0: v1.12.11
r8152 1-1:1.0 eth0: carrier on

# ifconfig 
eth0      Link encap:Ethernet  HWaddr A0:CE:C8:D7:D1:3F  
inet addr:10.44.3.53  Bcast:10.44.3.255  Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:36 errors:0 dropped:0 overruns:0 frame:0
TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:2433 (2.3 KiB)  TX bytes:2512 (2.4 KiB)

lo        Link encap:Local Loopback  
inet addr:127.0.0.1  Mask:255.0.0.0
UP LOOPBACK RUNNING  MTU:65536  Metric:1
RX packets:14 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:1591 (1.5 KiB)  TX bytes:1591 (1.5 KiB)

usb0      Link encap:Ethernet  HWaddr 00:05:F7:A8:1C:C2  
inet addr:192.168.2.1  Bcast:0.0.0.0  Mask:255.255.255.0
UP BROADCAST MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

#

@rgetz
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rgetz commented Nov 10, 2023 •
edited
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Things seem to work for me...

I have a windows machine with a pluto attached to ethernet (cross over cable plus Ethernet/USB dongle), and another pluto connected to the normal network (wifi on my laptop), and a zed board with an FMCOMMS2 attached on the network attached to wifi.

I plug them in - they all show up on my windows machine.

C:\Users\rgetz>iio_info -s
Unable to create Local IIO context : Function not implemented (40)
Available contexts:
        0: 192.168.1.120 (AD-FMCOMMS2-EBZ on Xilinx Zynq ZED), serial=00100 [ip:analog.local]
        1: 169.254.10.121 (Analog Devices PlutoSDR Rev.C (Z7010-AD9363A)), serial=10447376de0b000ef1ff3400e99f9920d0 [ip:pluto.local]
        2: 192.168.1.115 (Analog Devices PlutoSDR Rev.C (Z7010-AD9363A)), serial=10447376de0b000213002900fafa9908ec [ip:pluto.local]

the only problem is that the two plutos are on two different networks, and therefor don't see a name conflict when like this - so they show up on the windows machine as ip:pluto.local and ip:pluto.local (identical). You must use the ip number to differentiate them when you want to...

with ipv6 - it should be better...

But - it totally works for me now.

@rgetz
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rgetz commented Nov 13, 2023 •
edited
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And can confirm - /proc/sys/kernel/hotplug does not currently notify/poke mdev for cable carrier up/down messages, so there isn't an easy way to restart things...

However - I think that is because we don't have an allow-hotplug in /etc/network/interfaces need to do some checking when I have more time.

I think ifplud needs to be added to busybox with a few scripts to tie things together - and then it would work...

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@smrqdt @rgetz @mhennerich