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Date:      Thu, 12 Jul 2018 09:14:13 +0200
From:      Stefan Bethke <stb@lassitu.de>
To:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   Re: Passing through USB serial to bhyve VM
Message-ID:  <BBF19259-DAE7-46B8-AAD3-2142003929F3@lassitu.de>
In-Reply-To: <330AB9AE-9872-405E-8A73-D6F452D7A87A@lassitu.de>
References:  <24ADE3E6-869B-4B77-B94D-3F71EC26E3F5@lassitu.de> <330AB9AE-9872-405E-8A73-D6F452D7A87A@lassitu.de>

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FWIW, I=E2=80=99ve opened a bug: =
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229712

> Am 11.07.2018 um 23:41 schrieb Stefan Bethke <stb@lassitu.de>:
>=20
> It=E2=80=99s been a while since I last dealt with serial devices. =
Apparently, when passing through a serial device on the host to a COM =
port in the VM, CTS/RTS are not (correctly) passed through. With
>    set ctsrts off
> in ppp.conf I could get ppp to dial successfully.
>=20
>=20
> Stefan
>=20
>> Am 11.07.2018 um 19:22 schrieb Stefan Bethke <stb@lassitu.de>:
>>=20
>> I=E2=80=99m trying to access a Huawei USB LTE stick from a Bhyve VM =
like so:
>> # cat /var/vm/mgmt/mgmt.conf=20
>> loader=3D"bhyveload"
>> cpu=3D1
>> memory=3D256M
>> network0_type=3D"virtio-net"
>> network0_switch=3D"lan"
>> disk0_type=3D"virtio-blk"
>> disk0_name=3D"disk0"
>> disk0_dev=3D"sparse-zvol"
>> uuid=3D"53854567-8358-11e8-9638-000db94be2cc"
>> network0_mac=3D"58:9c:fc:04:1d:52"
>> bhyve_options=3D"-lcom2,/dev/cuaU0=E2=80=9C
>>=20
>> On the host, I can connect ppp(8), but inside the VM, ppp(8) appears =
not to be able to talk to the USB device. Using cu(1), I can talk to it =
just fine though. I=E2=80=99m not sure how to debug this further. Is =
this supposed to just work, or am I missing some obvious configuration =
bit?
>>=20
>> [root@mgmt ~]# cu -l cuau1 -s 115200
>> Connected
>> ATZ
>> OK
>> ATI
>> Manufacturer: huawei
>> Model: E3272
>> Revision: 22.436.07.02.1202
>> IMEI: 867503015nnnnnn
>> +GCAP: +CGSM,+DS,+ES
>>=20
>> OK
>> ~
>> [EOT]
>> [root@mgmt ~]# ppp
>> Working in interactive mode
>> Using interface: tun0
>> Phase: PPP Started (interactive mode).
>> ppp ON mgmt> dial
>> Phase: bundle: Establish
>> Phase: deflink: closed -> opening
>> Phase: deflink: Connected!
>> Phase: deflink: opening -> dial
>> Chat: deflink: Dial attempt 1 of 1
>> ppp ON mgmt> Chat: Send: ATZ
>> Chat: Expect(5): OK
>> Chat: Expect timeout
>> Chat: Send: ATZ
>> Chat: Expect(5): OK
>> Chat: Expect timeout
>> Warning: Chat script failed
>> Phase: deflink: dial -> hangup
>> Phase: deflink: Disconnected!
>> Phase: deflink: Connect time: 11 secs: 0 octets in, 0 octets out
>> Phase: deflink: 0 packets in, 0 packets out
>> Phase:  total 0 bytes/sec, peak 0 bytes/sec on Wed Jul 11 21:14:43 =
2018
>> Phase: deflink: hangup -> closed
>> Phase: bundle: Dead
>> ppp ON mgmt> quit
>> [root@mgmt ~]# cat /etc/ppp/ppp.conf
>> default:
>>   enable dns
>>   set log local LCP IPCP Phase Chat
>> 	set log all
>>   set timeout 0
>>   ident UMTS
>>   set authname eplus
>>   set authkey internet
>>   set cd off
>>   set device /dev/cuau1
>>   set speed 115200
>>   set dial "ABORT BUSY ABORT NO\\sCARRIER \
>>       ABORT VOICE ABORT NO\\sDIALTONE ABORT NO\\sDIAL\\sTONE ABORT =
ERROR \
>>       ABORT NO\\sANSWER ABORT DELAYED TIMEOUT 5 \
>>       \"\" ATZ OK-ATZ-OK \
>>       AT+CFUN=3D1 OK \
>>       AT+CREG? OK \
>>       AT+COPS? OK \
>>       AT+CSQ OK \
>> 	AT^HCSQ? OK \
>>       AT+cgdcont=3D1,\\\"IP\\\",\\\"internet.eplus.de\\\" OK \
>>       ATDT*99***1# CONNECT"
>>   set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
>>   add default HISADDR
>>=20
>>=20
>> Stefan
>>=20
>> --=20
>> Stefan Bethke <stb@lassitu.de>   Fon +49 151 14070811
>>=20
>>=20
>> _______________________________________________
>> freebsd-stable@freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
>> To unsubscribe, send any mail to =
"freebsd-stable-unsubscribe@freebsd.org"
>=20
> --=20
> Stefan Bethke <stb@lassitu.de>   Fon +49 151 14070811
>=20
>=20
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to =
"freebsd-stable-unsubscribe@freebsd.org"

--=20
Stefan Bethke <stb@lassitu.de>   Fon +49 151 14070811





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