2

gpg: signing failed: Inappropriate ioctl for device 解决办法

 2 years ago
source link: https://ttys3.dev/post/gpg-signing-failed-inappropriate-ioctl-for-device/
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.

gpg: signing failed: Inappropriate ioctl for device 解决办法

2021-05-05

:: 荒野無燈

:: Mod 2021-05-05(2f2d748)

#gpg  #git  #pinentry  #tty 

May 5, 2021

最近换了系统, git commit 在gpg签名的时候出错了:

gpg: signing failed: Inappropriate ioctl for device

原因是 gpg 在当前终端无法弹出密码输入页面。

解决办法:

export GPG_TTY=$(tty)

重新执行,发现会弹出一个密码输入界面。

参考: https://www.jianshu.com/p/2ed292ae2365

但是老灯觉得这不是解决办法,因为在此之前,我从来没遇到过这个问题。产生这个问题是有原因的。

于是再去看了一下Arch的文档,果然,有说明“Invalid IPC response and Inappropriate ioctl for device” 这个问题。虽然报错语句不一样,但是其实是一个问题。

https://wiki.archlinux.org/title/GnuPG#Invalid_IPC_response_and_Inappropriate_ioctl_for_device

The default pinentry program is /usr/bin/pinentry-gtk-2. If gtk2 is unavailable, pinentry falls back to /usr/bin/pinentry-curses and causes signing to fail:

gpg: signing failed: Inappropriate ioctl for device gpg: [stdin]: clear-sign failed: Inappropriate ioctl for device You need to set the GPG_TTY environment variable for the pinentry programs /usr/bin/pinentry-tty and /usr/bin/pinentry-curses.

$ export GPG_TTY=$(tty)

如果我们看一下 /usr/bin/pinentry 这个shell脚本, 内容如下:

#!/bin/sh

# user-defined pre-exec hook
test -r "${XDG_CONFIG_HOME:-$HOME/.config}"/pinentry/preexec &&
    . "${XDG_CONFIG_HOME:-$HOME/.config}"/pinentry/preexec

# site-defined pre-exec hook
test -r /etc/pinentry/preexec &&
    . /etc/pinentry/preexec

test -e /usr/lib/libgtk-x11-2.0.so.0 &&
    exec /usr/bin/pinentry-gtk-2 "$@"

exec /usr/bin/pinentry-curses "$@"

然后我们看看 /etc/pinentry/preexec 的内容,发现 /usr/bin/pinentry-gnome3/usr/bin/pinentry-qt 其实在我当前系统上都是存在的,所以,最简单的办法,其实我们注释掉pinentry-gnome3 那一行,或qt那一行都OK.

这样就没有必要再fallback 到 pinentry-gtk-2 或 pinentry-curses 了

#!/hint/sh

# Define additional functionality for pinentry. For example
#test -e /usr/lib/libgcr-base-3.so.1 && exec /usr/bin/pinentry-gnome3 "$@"
#test -e /usr/lib/libQt5Widgets.so.5 && exec /usr/bin/pinentry-qt     "$@"

根据 Arch 文档, “gpg-agent is mostly used as daemon to request and cache the password for the keychain. ”, 我们使用ssh的时候,有ssh-agent 或类似 gnome seahorse 之类的工具充当agent, 那么 gpg 其实也有 agent的,这个 agent 一定是属于当前用户的,如果遇到问题,不防检查一下它是不是正确运行状态,当然,老灯这次遇到的并不是这个问题, gpg-agent 运行正常:

   ~ 
❯ systemctl --user status gpg-agent.socket
● gpg-agent.socket - GnuPG cryptographic agent and passphrase cache
     Loaded: loaded (/usr/lib/systemd/user/gpg-agent.socket; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-05-05 09:54:33 CST; 12h ago
   Triggers: ● gpg-agent.service
       Docs: man:gpg-agent(1)
     Listen: /run/user/1000/gnupg/S.gpg-agent (Stream)
     CGroup: /user.slice/user-1000.slice/[email protected]/app.slice/gpg-agent.socket

May 05 09:54:33 wudeng systemd[1297]: Listening on GnuPG cryptographic agent and passphrase cache.

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK