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f54a90ea80
For some operations, i.e. listing the enrolled prints, the device does not need to be claimed. Therefore the claiming can be delayed until we actually start the verification process, allowing us to query the fingerprint system if the user has any prints enrolled. https://bugs.freedesktop.org/show_bug.cgi?id=99811
PAM module for fingerprint authentication ----------------------------------------- Using: * Modify the appropriate PAM configuration file (/etc/pam.d/system-auth-ac on Fedora systems), and add the line: auth sufficient pam_fprintd.so before the line: auth sufficient pam_unix.so ... * You can now enroll fingerprints using fprintd-enroll. The first available fingerprint available will be used to log you in. Options: * You can add the "debug" option on the pam configuration file line above, this will log more information from PAM to the file specified in your syslog configuration (/var/log/secure by default on Fedora) Known issues: * pam_fprintd does not support identifying the user itself as that would mean having the fingerprint reader on for all the time the user selection is displayed, and could damage the hardware. It could be fixed by having gdm/login only start the PAM conversation when there is activity * pam_fprintd doesn't support entering either the password or a fingerprint, as pam_thinkfinger does, because it's a gross hack, and could be fixed by having the login managers run 2 separate PAM stacks