The pam_sm_setcred function is the service module's implementation of
the pam_setcred(3) interface.
This function performs the task of altering the credentials of the
user with respect to the corresponding authorization scheme.
Generally, an authentication module may have access to more
information about a user than their authentication token. This
function is used to make such information available to the
application. It should only be called after the user has been
authenticated but before a session has been established.
Valid flags, which may be logically OR'd with PAM_SILENT, are:
Do not emit any messages.
Initialize the credentials for the user.
Delete the credentials associated with the authentication
Reinitialize the user credentials.
Extend the lifetime of the user credentials.
The way the auth stack is navigated in order to evaluate the
pam_setcred() function call, independent of the pam_sm_setcred()
return codes, is exactly the same way that it was navigated when
evaluating the pam_authenticate() library call. Typically, if a stack
entry was ignored in evaluating pam_authenticate(), it will be
ignored when libpam evaluates the pam_setcred() function call.
Otherwise, the return codes from each module specific
pam_sm_setcred() call are treated as required.
This module cannot retrieve the user's credentials.
The user's credentials have expired.
This module was unable to set the credentials of the user.
The user credential was successfully set.
The user is not known to this authentication module.
These, non-PAM_SUCCESS, return values will typically lead to the
credential stack failing. The first such error will dominate in the
return value of pam_setcred().
This page is part of the linux-pam (Pluggable Authentication Modules
for Linux) project. Information about the project can be found at
⟨https://fedorahosted.org/linux-pam/⟩. If you have a bug report for
this manual page, see ⟨https://fedorahosted.org/linux-pam/report⟩.
This page was obtained from the tarball Linux-PAM-1.3.0.tar.gz
fetched from ⟨http://www.linux-pam.org/library/⟩ on 2017-03-13. If
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Linux-PAM Manual 04/01/2016 PAM_SM_SETCRED(3)