source: openpam/trunk/lib/pam_start.c @ 137

Last change on this file since 137 was 137, checked in by Dag-Erling Smørgrav, 19 years ago

Fall in line with Solaris and Linux-PAM wrt use of the "other" policy:
use it to fill the gaps in incomplete policies as well as to replace
missing ones.

Sponsored by: DARPA, NAI Labs

File size: 3.5 KB
Line 
1/*-
2 * Copyright (c) 2002 Networks Associates Technology, Inc.
3 * All rights reserved.
4 *
5 * This software was developed for the FreeBSD Project by ThinkSec AS and
6 * NAI Labs, the Security Research Division of Network Associates, Inc.
7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
8 * DARPA CHATS research program.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote
19 *    products derived from this software without specific prior written
20 *    permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $P4: //depot/projects/openpam/lib/pam_start.c#14 $
35 */
36
37#include <stdlib.h>
38
39#include <security/pam_appl.h>
40
41#include "openpam_impl.h"
42
43/*
44 * XSSO 4.2.1
45 * XSSO 6 page 89
46 *
47 * Initiate a PAM transaction
48 */
49
50int
51pam_start(const char *service,
52        const char *user,
53        const struct pam_conv *pam_conv,
54        pam_handle_t **pamh)
55{
56        struct pam_handle *ph;
57        int r;
58
59        if ((ph = calloc(1, sizeof *ph)) == NULL)
60                return (PAM_BUF_ERR);
61        if ((r = pam_set_item(ph, PAM_SERVICE, service)) != PAM_SUCCESS)
62                goto fail;
63        if ((r = pam_set_item(ph, PAM_USER, user)) != PAM_SUCCESS)
64                goto fail;
65        if ((r = pam_set_item(ph, PAM_CONV, pam_conv)) != PAM_SUCCESS)
66                goto fail;
67
68        r = openpam_configure(ph, service);
69        if (r != PAM_SUCCESS)
70                goto fail;
71
72        *pamh = ph;
73        openpam_log(PAM_LOG_DEBUG, "pam_start(\"%s\") succeeded", service);
74        return (PAM_SUCCESS);
75
76 fail:
77        pam_end(ph, r);
78        return (r);
79}
80
81/*
82 * Error codes:
83 *
84 *      =openpam_configure
85 *      =pam_set_item
86 *      !PAM_SYMBOL_ERR
87 *      PAM_BUF_ERR
88 */
89
90/**
91 * The =pam_start function creates and initializes a PAM context.
92 *
93 * The =service argument specifies the name of the policy to apply, and is
94 * stored in the =PAM_SERVICE item in the created context.
95 *
96 * The =user argument specifies the name of the target user - the user the
97 * created context will serve to authenticate.
98 * It is stored in the =PAM_USER item in the created context.
99 *
100 * The =pam_conv argument points to a =struct pam_conv describing the
101 * conversation function to use.
102 * This structure is defined as follows:
103 *
104 *     struct pam_conv {
105 *          int   (*conv)(int, const struct pam_message **,
106 *              struct pam_response **, void *);
107 *          void   *appdata_ptr;
108 *     };
109 *
110 * >pam_get_item
111 * >pam_set_item
112 * >pam_end
113 */
Note: See TracBrowser for help on using the repository browser.