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Sorry to jump in, but yes, its possible. But you'd have to write your own module and I don't think you'll get much help here because well, there's no 'white hat' reason to capture the password. Note: Password could be a character string, or a converted biometric pattern, or anything. Why don't you explain why you want to capture the password? Perhaps there's a better way to achieve what you want? > Date: Tue, 21 Jul 2009 08:56:21 +0200 > From: kukuk@xxxxxxx > To: pam-list@xxxxxxxxxx > Subject: Re: How to save a copy of user's input password? > > On Tue, Jul 21, Andy wrote: > > > On Tue, Jul 21, 2009 at 1:53 PM, Thorsten Kukuk<kukuk@xxxxxxx> wrote: > > > On Tue, Jul 21, Andy wrote: > > > > > >> Hi all, > > >> My pam version is 1.1.0, I use it to authenticate users. > > >> My case is, when pam finished it's auth, that is after > > >> pam_authenticate(pamh, o) & pam_acct_mgmt(pamh, 0), > > >> I want to save a copy of user's password if it's valid, but I can not > > >> find any API to fulfill my needs. > > >> I tried pam_get_item(pamh, PAM_AUTHTOK, (const void > > >> **)©_of_passwd), but it returns a "bad item passed to > > >> pam_*_item()", now I have no idea. :( > > > > > > As written in the documentation, this is not possible. And > > > as your application does not know in which form the authentication > > > was done, it doesn't make sense, too. Who says that a password > > > was used for authentication? The admin could have decided to > > > use finger prints instead or whatever else. > > > > > > > But now, in PAM, "pam_authenticate(...)" function gives a promt > > "Password:" to let the user type in a password, > > One of the configured PAM modules is asking that, but you can > always replace that module with something different. > > > we really have no way to get a copy of user's input ? > > No, there is not. Read the documentation. > > > I saw some code in google, something like below: > > That's code for a PAM module, not a PAM aware application. > > > I guess this may try to retrieve a copy of authtok(password ??), but > > now ( version1.1.0 ), PAM_AUTHTOK seems not be supported anymore. > > Not anymore, it was never. > > You should really start reading the PAM documenation, especially > the application writer guide. > > Thorsten > > -- > Thorsten Kukuk, Project Manager/Release Manager SLES > SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg > GF: Markus Rex, HRB 16746 (AG Nuernberg) > > _______________________________________________ > Pam-list mailing list > Pam-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/pam-list Windows Live™ SkyDrive™: Store, access, and share your photos. See how. |
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