Windows GPG 2.22.2: ERR 100663354 No data <SCD>
Ave Milia
avemilia at protonmail.com
Wed Sep 2 13:53:08 CEST 2020
I have just noticed that I accidentally misread the versions and thought I am using 2.22.2, while it is 2.2.22. In this regard 2.3 milestone for Sep 30, 2020 in [0] makes sense. I will try to build gpg from source and test it. Sorry for the confusion.
‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Monday, August 31, 2020 11:03 PM, Ave Milia via Gnupg-users <gnupg-users at gnupg.org> wrote:
> Windows, GPG 2.22.2 from chocolatey (choco install gnupg)
>
> While trying to setup gpg-agent to work with SSH key on Yubikey on Windows I have noticed (perhaps unrelated) issue:
>
> PS C:\Users\avemilia> gpgconf.exe --kill all
> PS C:\Users\avemilia> gpgconf.exe --launch all
> PS C:\Users\avemilia> echo "scd getinfo reader_list" | gpg-connect-agent.exe --decode
> ERR 100663354 No data <SCD>
> PS C:\Users\avemilia> gpgconf.exe --kill all
>
> On Linux this gives:
> ❯ echo "scd getinfo reader_list" | gpg-connect-agent --decode
> D 1050:0407:X:0
> OK
>
> I found two mentions of this issue [0][1]. It seems like this issue was addressed in 2.3.0?
>
> Why do I care? I am configuring gpg and ssh on Windows and was reading [2] which mentions this command to determine reader-port value in order to operate only on one smartcard. I am struggling to understand what this error means -- gpg cannot determine the smartcard to use? If so, why does gpg --card-status work? If not, what does the error imply? Can it be one of the reasons why agent forwarding over ssh fails (this is what I was debugging before I met this error)?
>
> gpg-agent.conf:
> enable-ssh-support
> enable-putty-support
> default-cache-ttl 60
> max-cache-ttl 120
> verbose
> debug-level advanced
> log-file C:\Users\avemilia\AppData\Roaming\gnupg\gpg-agent.log
>
> scdaemon.conf:
> #reader-port Yubico Yubikey 4 OTP+U2F+CCID 0
> card-timeout 5
> verbose
> debug-level advanced
> log-file C:\Users\avemilia\AppData\Roaming\gnupg\scdaemon.log
>
> Notice that reader-port is commented out, but it the error is the same when it is set as well. I have looked up this value from Device Manager according to some guide on the internet that recommended setting reader-port so that scdaemon doesn't choke on virtual smartcards generated by 365 Office, or something.
>
> Below are the logs of gpg-agent and scdaemon based on (only) 4 commands provided at the beginning of this email.
>
> agent:
> 2020-08-31 22:59:54 gpg-agent[7220] listening on socket 'C:\Users\avemilia\AppData\Roaming\gnupg\S.gpg-agent'
> 2020-08-31 22:59:54 gpg-agent[7220] listening on socket 'C:\Users\avemilia\AppData\Roaming\gnupg\S.gpg-agent.extra'
> 2020-08-31 22:59:54 gpg-agent[7220] listening on socket 'C:\Users\avemilia\AppData\Roaming\gnupg\S.gpg-agent.browser'
> 2020-08-31 22:59:54 gpg-agent[7220] listening on socket 'C:\Users\avemilia\AppData\Roaming\gnupg\S.gpg-agent.ssh'
> 2020-08-31 22:59:54 gpg-agent[7220] gpg-agent (GnuPG) 2.2.22 started
> 2020-08-31 22:59:54 gpg-agent[7220] putty message loop thread started
> 2020-08-31 22:59:54 gpg-agent[7220] DBG: chan_0x000002a8 -> OK Pleased to meet you
> 2020-08-31 22:59:54 gpg-agent[7220] DBG: chan_0x000002a8 <- RESET
> 2020-08-31 22:59:54 gpg-agent[7220] DBG: chan_0x000002a8 -> OK
> 2020-08-31 22:59:54 gpg-agent[7220] DBG: chan_0x000002a8 <- NOP
> 2020-08-31 22:59:54 gpg-agent[7220] DBG: chan_0x000002a8 -> OK
> 2020-08-31 22:59:54 gpg-agent[7220] DBG: chan_0x000002a8 <- [eof]
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002b8 -> OK Pleased to meet you
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002b8 <- RESET
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002b8 -> OK
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002b8 <- scd getinfo reader_list
> 2020-08-31 23:00:06 gpg-agent[7220] no running SCdaemon - starting it
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc <- OK GNU Privacy Guard's Smartcard server ready
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: first connection to SCdaemon established
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc -> GETINFO socket_name
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc <- D C:\Users\avemilia\AppData\Roaming\gnupg\S.scdaemon
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc <- OK
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: additional connections at 'C:\Users\avemilia\AppData\Roaming\gnupg\S.scdaemon'
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc -> OPTION event-signal=0x000002a4
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc <- OK
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc -> getinfo reader_list
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc <- ERR 100663354 No data <SCD>
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002b8 -> ERR 100663354 No data <SCD>
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002b8 <- [eof]
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc -> RESTART
> 2020-08-31 23:00:06 gpg-agent[7220] DBG: chan_0x000002cc <- OK
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 -> OK Pleased to meet you
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 <- RESET
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 -> OK
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 <- GETINFO scd_running
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 -> OK
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 <- scd killscd
> 2020-08-31 23:00:09 gpg-agent[7220] new connection to SCdaemon established (reusing)
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002cc -> killscd
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002cc <- OK closing connection
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 -> OK
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000000b0 <- [eof]
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002cc -> RESTART
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002cc <- [eof]
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002d4 -> OK Pleased to meet you
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002d4 <- RESET
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002d4 -> OK
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002d4 <- KILLAGENT
> 2020-08-31 23:00:09 gpg-agent[7220] DBG: chan_0x000002d4 -> OK closing connection
> 2020-08-31 23:00:09 gpg-agent[7220] secmem usage: 0/32768 bytes in 0 blocks
>
> scd:
> 2020-08-31 23:00:06 scdaemon[12216] listening on socket 'C:\Users\avemilia\AppData\Roaming\gnupg\S.scdaemon'
> 2020-08-31 23:00:06 scdaemon[12216] handler for fd -1 started
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 -> OK GNU Privacy Guard's Smartcard server ready
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 <- GETINFO socket_name
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 -> D C:\Users\avemilia\AppData\Roaming\gnupg\S.scdaemon
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 -> OK
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 <- OPTION event-signal=0x000002a4
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 -> OK
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 <- getinfo reader_list
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 -> ERR 100663354 No data <SCD>
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 <- RESTART
> 2020-08-31 23:00:06 scdaemon[12216] DBG: chan_0x00000100 -> OK
> 2020-08-31 23:00:09 scdaemon[12216] DBG: chan_0x00000100 <- killscd
> 2020-08-31 23:00:09 scdaemon[12216] DBG: chan_0x00000100 -> OK closing connection
>
> Thank you in advance for the reply (and replies on my previous thread, on which I replied with own solution).
>
> [0] https://dev.gnupg.org/T4620
> [1] https://dev.gnupg.org/T1081
> [2] https://www.gnupg.org/documentation/manuals/gnupg/Scdaemon-Options.html
>
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