source: openpam/trunk/lib/pam_start.c @ 200

Last change on this file since 200 was 187, checked in by Dag-Erling Smørgrav, 18 years ago

Instrument entry and exit points.

File size: 3.3 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 * Network Associates Laboratories, the Security Research Division of
7 * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
8 * ("CBOSS"), as part of the 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#17 $
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        ENTER();
60        if ((ph = calloc(1, sizeof *ph)) == NULL)
61                RETURNC(PAM_BUF_ERR);
62        if ((r = pam_set_item(ph, PAM_SERVICE, service)) != PAM_SUCCESS)
63                goto fail;
64        if ((r = pam_set_item(ph, PAM_USER, user)) != PAM_SUCCESS)
65                goto fail;
66        if ((r = pam_set_item(ph, PAM_CONV, pam_conv)) != PAM_SUCCESS)
67                goto fail;
68
69        r = openpam_configure(ph, service);
70        if (r != PAM_SUCCESS)
71                goto fail;
72
73        *pamh = ph;
74        openpam_log(PAM_LOG_DEBUG, "pam_start(\"%s\") succeeded", service);
75        RETURNC(PAM_SUCCESS);
76
77 fail:
78        pam_end(ph, r);
79        RETURNC(r);
80}
81
82/*
83 * Error codes:
84 *
85 *      =openpam_configure
86 *      =pam_set_item
87 *      !PAM_SYMBOL_ERR
88 *      PAM_BUF_ERR
89 */
90
91/**
92 * The =pam_start function creates and initializes a PAM context.
93 *
94 * The =service argument specifies the name of the policy to apply, and is
95 * stored in the =PAM_SERVICE item in the created context.
96 *
97 * The =user argument specifies the name of the target user - the user the
98 * created context will serve to authenticate.
99 * It is stored in the =PAM_USER item in the created context.
100 *
101 * The =pam_conv argument points to a =struct pam_conv describing the
102 * conversation function to use; see =pam_conv for details.
103 *
104 * >pam_get_item
105 * >pam_set_item
106 * >pam_end
107 */
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