xref: /illumos-gate/usr/src/lib/passwdutil/__set_authtoken_attr.c (revision 8119dad84d6416f13557b0ba8e2aaf9064cbcfd3)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  * Copyright 2024 OmniOS Community Edition (OmniOSce) Association.
25  */
26 
27 #include <errno.h>
28 #include <sys/types.h>
29 #include <sys/types.h>
30 #include <nsswitch.h>
31 #include <stdlib.h>
32 #include <stdio.h>
33 #include <string.h>
34 #include <syslog.h>
35 
36 #include "passwdutil.h"
37 
38 int
39 __set_authtoken_attr(const char *name, const char *oldpw, pwu_repository_t *rep,
40     attrlist *items, int *updated_reps)
41 {
42 	attrlist *p;
43 	int repositories;
44 	int i;
45 	void *buf;		/* workspace for repository specific funcs */
46 	int err = PWU_NOT_FOUND;
47 	int rep_success = REP_NOREP;	/* first successfull update */
48 	int updated = REP_NOREP;	/* (bitmask) all updates */
49 
50 	/* Can't set name uid or flag */
51 	for (p = items; p != NULL; p = p->next) {
52 		switch (p->type) {
53 		case ATTR_NAME:
54 		case ATTR_UID:
55 		case ATTR_FLAG:
56 			return (EINVAL);
57 		}
58 	}
59 
60 	repositories = get_ns(rep, PWU_WRITE);
61 
62 	if (repositories == 0)
63 		return (PWU_SYSTEM_ERROR);
64 
65 	/*
66 	 * updating requires that either
67 	 *  - PAM_REPOSITORY is set: we know what to update
68 	 *  - PAM_REPOSITORY is not set, but we recognize the nsswitch.conf
69 	 *    passwd: entry
70 	 */
71 	if (repositories == REP_ERANGE || repositories == REP_NSS)
72 		return (PWU_REPOSITORY_ERROR);
73 
74 	/*
75 	 * Loop over selected repositories to update
76 	 * We should update the remote repositories first, FILES last.
77 	 */
78 	for (i = REP_LAST; i; i >>= 1) {
79 		if (repositories & i) {
80 			buf = NULL;
81 
82 			if (rops[i]->lock && (err = rops[i]->lock()))  {
83 				return (err);
84 			}
85 
86 			if (rops[i]->getpwnam) {
87 				err = rops[i]->getpwnam(name, items, rep, &buf);
88 			}
89 
90 			if ((err == PWU_SUCCESS) && rops[i]->update)
91 				err = rops[i]->update(items, rep, buf);
92 
93 			if ((err == PWU_SUCCESS) && rops[i]->putpwnam)
94 				err = rops[i]->putpwnam(name, oldpw, rep, buf);
95 
96 			if (rops[i]->unlock)
97 				(void) rops[i]->unlock();
98 
99 			if (buf) {
100 				(void) free(buf);
101 				buf = NULL;
102 			}
103 			if (err == PWU_SUCCESS) {
104 				rep_success = i;	/* this rep succeeded */
105 				updated |= i;
106 			} else if (err != PWU_SUCCESS && err != PWU_NOT_FOUND) {
107 				break;
108 			}
109 		}
110 	}
111 
112 	if (buf)
113 		free(buf);
114 
115 	if (updated_reps)
116 		*updated_reps = (updated != REP_NOREP) ? updated : i;
117 
118 	/*
119 	 * err contains either
120 	 *  PWU_SUCCESS		: everyting went OK
121 	 *  PWU_NOT_FOUND	: none of the repositories contained the user
122 	 *  error-code		: the specific error that occurred
123 	 */
124 	if (rep_success != REP_NOREP) {
125 		return (PWU_SUCCESS);
126 	} else {
127 		return (err);
128 	}
129 }
130