'\" te
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.TH PAM_DIAL_AUTH 5 "Sep 9, 2004"
.SH NAME
pam_dial_auth \- authentication management PAM module for dialups
.SH SYNOPSIS
.LP
.nf
\fBpam_dial_auth.so.1\fR
.fi

.SH DESCRIPTION
.sp
.LP
The \fBpam_dial_auth\fR module implements \fBpam_sm_authenticate\fR(3PAM) which
authenticates the user according to the \fBdialups\fR(4) and \fBd_passwd\fR(4)
files configuration.
.sp
.LP
Authentication service modules must implement both \fBpam_sm_authenticate()\fR
and \fBpam_sm_setcred()\fR. \fBpam_sm_setcred()\fR in this module always
returns \fBPAM_IGNORE\fR.
.sp
.LP
The value of the \fBPAM_TTY\fR item is checked against entries in
\fBdialups\fR(4). If there is a match, the user's shell is compared against
entries in \fBd_passwd\fR(4). If there is a matching entry, the user is
prompted for a password which is validated against the entry found.
.sp
.LP
The following option may be passed in to this service module:
.sp
.ne 2
.na
\fB\fBdebug\fR\fR
.ad
.RS 9n
\fBsyslog\fR(3C) debugging information at \fBLOG_DEBUG\fR level.
.RE

.SH ERRORS
.sp
.LP
If \fBdialups\fR(4) is not present, \fBPAM_IGNORE\fR is returned. Upon
successful completion of \fBpam_sm_authenticate()\fR, \fBPAM_SUCCESS\fR is
returned. The following error codes are returned upon error:
.sp
.ne 2
.na
\fB\fBPAM_AUTH_ERR\fR\fR
.ad
.RS 20n
Authentication failure.
.RE

.sp
.ne 2
.na
\fB\fBPAM_SERVICE_ERR\fR\fR
.ad
.RS 20n
Error in the calling service, \fBPAM_TTY\fR is not set.
.RE

.sp
.ne 2
.na
\fB\fBPAM_SYSTEM_ERR\fR\fR
.ad
.RS 20n
System error (\fBd_passwd\fR(4) is not present).
.RE

.sp
.ne 2
.na
\fB\fBPAM_USER_UNKNOWN\fR\fR
.ad
.RS 20n
No account is present for \fIuser\fR.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for a description of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
MT Level	MT-Safe with exceptions
.TE

.SH SEE ALSO
.sp
.LP
\fBpam\fR(3PAM), \fBpam_authenticate\fR(3PAM), \fBpam_sm_authenticate\fR(3PAM),
\fBd_passwd\fR(4), \fBdialups\fR(4), \fBlibpam\fR(3LIB), \fBpam.conf\fR(4),
\fBattributes\fR(5), \fBpam_authtok_check\fR(5), \fBpam_authtok_get\fR(5),
\fBpam_authtok_store\fR(5), \fBpam_dhkeys\fR(5), \fBpam_passwd_auth\fR(5),
\fBpam_unix_account\fR(5), \fBpam_unix_auth\fR(5), \fBpam_unix_session\fR(5)
.SH NOTES
.sp
.LP
The interfaces in \fBlibpam\fR(3LIB) are MT-Safe only if each thread within the
multi-threaded application uses its own \fBPAM\fR handle.
.sp
.LP
The \fBpam_unix\fR(5) module is no longer supported. Similar functionality is
provided by \fBpam_authtok_check\fR(5), \fBpam_authtok_get\fR(5),
\fBpam_authtok_store\fR(5), \fBpam_dhkeys\fR(5), \fBpam_passwd_auth\fR(5),
\fBpam_unix_account\fR(5), \fBpam_unix_auth\fR(5), and
\fBpam_unix_session\fR(5).