1/* Copyright (C) 2005 Red Hat, Inc. */
2
3/* Object: semanage_user_extra_t (SELinux User/Class Extra Data)
4 * Object: semanage_user_extra_key_t (SELinux User/Class Key)
5 * Implements: record_t (Database Record)
6 * Implements: record_key_t (Database Record Key)
7 */
8
9#include <sepol/user_record.h>
10
11typedef sepol_user_key_t semanage_user_key_t;
12#define _SEMANAGE_USER_KEY_DEFINED_
13
14struct semanage_user_extra;
15typedef struct semanage_user_extra record_t;
16typedef semanage_user_key_t record_key_t;
17#define DBASE_RECORD_DEFINED
18
19#include <semanage/handle.h>
20#include <stdlib.h>
21#include <string.h>
22#include "user_internal.h"
23#include "debug.h"
24#include "database.h"
25
26struct semanage_user_extra {
27	/* This user's name */
28	char *name;
29
30	/* Labeling prefix */
31	char *prefix;
32};
33
34static int semanage_user_extra_key_extract(semanage_handle_t * handle,
35					   const semanage_user_extra_t *
36					   user_extra,
37					   semanage_user_key_t ** key_ptr)
38{
39
40	if (semanage_user_key_create(handle, user_extra->name, key_ptr) < 0)
41		goto err;
42
43	return STATUS_SUCCESS;
44
45      err:
46	ERR(handle, "could not extract key from user extra record");
47	return STATUS_ERR;
48}
49
50static int semanage_user_extra_compare(const semanage_user_extra_t * user_extra,
51				       const semanage_user_key_t * key)
52{
53
54	const char *name;
55	semanage_user_key_unpack(key, &name);
56
57	return strcmp(user_extra->name, name);
58}
59
60static int semanage_user_extra_compare2(const semanage_user_extra_t *
61					user_extra,
62					const semanage_user_extra_t *
63					user_extra2)
64{
65
66	return strcmp(user_extra->name, user_extra2->name);
67}
68
69static int semanage_user_extra_compare2_qsort(const semanage_user_extra_t **
70					      user_extra,
71					      const semanage_user_extra_t **
72					      user_extra2)
73{
74
75	return strcmp((*user_extra)->name, (*user_extra2)->name);
76}
77
78/* Name */
79hidden const char *semanage_user_extra_get_name(const semanage_user_extra_t *
80						user_extra)
81{
82
83	return user_extra->name;
84}
85
86hidden int semanage_user_extra_set_name(semanage_handle_t * handle,
87					semanage_user_extra_t * user_extra,
88					const char *name)
89{
90
91	char *tmp_name = strdup(name);
92	if (!tmp_name) {
93		ERR(handle, "out of memory, could not set name %s "
94		    "for user extra data", name);
95		return STATUS_ERR;
96	}
97	free(user_extra->name);
98	user_extra->name = tmp_name;
99	return STATUS_SUCCESS;
100}
101
102/* Labeling prefix */
103hidden const char *semanage_user_extra_get_prefix(const semanage_user_extra_t *
104						  user_extra)
105{
106
107	return user_extra->prefix;
108}
109
110hidden int semanage_user_extra_set_prefix(semanage_handle_t * handle,
111					  semanage_user_extra_t * user_extra,
112					  const char *prefix)
113{
114
115	char *tmp_prefix = strdup(prefix);
116	if (!tmp_prefix) {
117		ERR(handle, "out of memory, could not set prefix %s "
118		    "for user %s", prefix, user_extra->name);
119		return STATUS_ERR;
120	}
121	free(user_extra->prefix);
122	user_extra->prefix = tmp_prefix;
123	return STATUS_SUCCESS;
124}
125
126/* Create */
127hidden int semanage_user_extra_create(semanage_handle_t * handle,
128				      semanage_user_extra_t ** user_extra_ptr)
129{
130
131	semanage_user_extra_t *user_extra =
132	    (semanage_user_extra_t *) malloc(sizeof(semanage_user_extra_t));
133
134	if (!user_extra) {
135		ERR(handle, "out of memory, could not "
136		    "create user extra data record");
137		return STATUS_ERR;
138	}
139
140	user_extra->name = NULL;
141	user_extra->prefix = NULL;
142
143	*user_extra_ptr = user_extra;
144	return STATUS_SUCCESS;
145}
146
147/* Destroy */
148hidden void semanage_user_extra_free(semanage_user_extra_t * user_extra)
149{
150
151	if (!user_extra)
152		return;
153
154	free(user_extra->name);
155	free(user_extra->prefix);
156	free(user_extra);
157}
158
159/* Deep copy clone */
160hidden int semanage_user_extra_clone(semanage_handle_t * handle,
161				     const semanage_user_extra_t * user_extra,
162				     semanage_user_extra_t ** user_extra_ptr)
163{
164
165	semanage_user_extra_t *new_user_extra = NULL;
166
167	if (semanage_user_extra_create(handle, &new_user_extra) < 0)
168		goto err;
169
170	if (semanage_user_extra_set_name
171	    (handle, new_user_extra, user_extra->name) < 0)
172		goto err;
173
174	if (semanage_user_extra_set_prefix
175	    (handle, new_user_extra, user_extra->prefix) < 0)
176		goto err;
177
178	*user_extra_ptr = new_user_extra;
179	return STATUS_SUCCESS;
180
181      err:
182	ERR(handle, "could not clone extra data for user %s", user_extra->name);
183	semanage_user_extra_free(new_user_extra);
184	return STATUS_ERR;
185}
186
187/* Record base functions */
188record_table_t SEMANAGE_USER_EXTRA_RTABLE = {
189	.create = semanage_user_extra_create,
190	.key_extract = semanage_user_extra_key_extract,
191	.key_free = semanage_user_key_free,
192	.clone = semanage_user_extra_clone,
193	.compare = semanage_user_extra_compare,
194	.compare2 = semanage_user_extra_compare2,
195	.compare2_qsort = semanage_user_extra_compare2_qsort,
196	.free = semanage_user_extra_free,
197};
198