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Diffstat (limited to 'doc/man/pam_set_data.3')
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diff --git a/doc/man/pam_set_data.3 b/doc/man/pam_set_data.3 new file mode 100644 index 0000000..8c4a498 --- /dev/null +++ b/doc/man/pam_set_data.3 @@ -0,0 +1,119 @@ +'\" t +.\" Title: pam_set_data +.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] +.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> +.\" Date: 05/18/2017 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SET_DATA" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_set_data \- set module internal data +.SH "SYNOPSIS" +.sp +.ft B +.nf +#include <security/pam_modules\&.h> +.fi +.ft +.HP \w'int\ pam_set_data('u +.BI "int pam_set_data(pam_handle_t\ *" "pamh" ", const\ char\ *" "module_data_name" ", void\ *" "data" ", void\ " "(*cleanup)(pam_handle_t\ *pamh,\ void\ *data,\ int\ error_status)" ");" +.SH "DESCRIPTION" +.PP +The +\fBpam_set_data\fR +function associates a pointer to an object with the (hopefully) unique string +\fImodule_data_name\fR +in the PAM context specified by the +\fIpamh\fR +argument\&. +.PP +PAM modules may be dynamically loadable objects\&. In general such files should not contain +\fIstatic\fR +variables\&. This function and its counterpart +\fBpam_get_data\fR(3), provide a mechanism for a module to associate some data with the handle +\fIpamh\fR\&. Typically a module will call the +\fBpam_set_data\fR +function to register some data under a (hopefully) unique +\fImodule_data_name\fR\&. The data is available for use by other modules too but +\fInot\fR +by an application\&. Since this functions stores only a pointer to the +\fIdata\fR, the module should not modify or free the content of it\&. +.PP +The function +\fBcleanup()\fR +is associated with the +\fIdata\fR +and, if non\-NULL, it is called when this data is over\-written or following a call to +\fBpam_end\fR(3)\&. +.PP +The +\fIerror_status\fR +argument is used to indicate to the module the sort of action it is to take in cleaning this data item\&. As an example, Kerberos creates a ticket file during the authentication phase, this file might be associated with a data item\&. When +\fBpam_end\fR(3) +is called by the module, the +\fIerror_status\fR +carries the return value of the +\fBpam_authenticate\fR(3) +or other +\fIlibpam\fR +function as appropriate\&. Based on this value the Kerberos module may choose to delete the ticket file (\fIauthentication failure\fR) or leave it in place\&. +.PP +The +\fIerror_status\fR +may have been logically OR\*(Aqd with either of the following two values: +.PP +PAM_DATA_REPLACE +.RS 4 +When a data item is being replaced (through a second call to +\fBpam_set_data\fR) this mask is used\&. Otherwise, the call is assumed to be from +\fBpam_end\fR(3)\&. +.RE +.PP +PAM_DATA_SILENT +.RS 4 +Which indicates that the process would prefer to perform the +\fBcleanup()\fR +quietly\&. That is, discourages logging/messages to the user\&. +.RE +.SH "RETURN VALUES" +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Data was successful stored\&. +.RE +.PP +PAM_SYSTEM_ERR +.RS 4 +A NULL pointer was submitted as PAM handle or the function was called by an application\&. +.RE +.SH "SEE ALSO" +.PP +\fBpam_end\fR(3), +\fBpam_get_data\fR(3), +\fBpam_strerror\fR(3) |