libnl: /data/src/libnl3/lib/xfrm/lifetime.c Source File

libnl 3.7.0

lifetime.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
4 *
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the
16 * distribution.
17 *
18 * Neither the name of Texas Instruments Incorporated nor the names of
19 * its contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 */
35 /**
36 * @ingroup xfrmnl
37 * @defgroup XFRM Lifetime Configuration Object
38 *
39 * Abstract data type representing XFRM SA lifetime properties
40 *
41 * @{
42 *
43 * Header
44 * ------
45 * ~~~~{.c}
46 * #include <netlink/xfrm/lifetime.h>
47 * ~~~~
48 */
49
50 #include <netlink/xfrm/lifetime.h>
51 #include <netlink-private/netlink.h>
52
53 static void ltime_cfg_destroy(struct xfrmnl_ltime_cfg* ltime)
54 {
55 if (!ltime)
56 return;
57
58 if (ltime->refcnt != 1)
59 {
60 fprintf(stderr, "BUG: %s:%d\n", __FILE__, __LINE__);
61 assert(0);
62 }
63
64 free(ltime);
65 }
66
67 /**
68 * @name Creating Selector
69 * @{
70 */
71
72 /**
73 * Allocate new lifetime config object.
74 * @return Newly allocated lifetime config object or NULL
75 */
76 struct xfrmnl_ltime_cfg* xfrmnl_ltime_cfg_alloc()
77 {
78 struct xfrmnl_ltime_cfg* ltime;
79
80 ltime = calloc(1, sizeof(struct xfrmnl_ltime_cfg));
81 if (!ltime)
82 return NULL;
83
84 ltime->refcnt = 1;
85
86 return ltime;
87 }
88
89 /**
90 * Clone existing lifetime config object.
91 * @arg ltime Selector object.
92 * @return Newly allocated lifetime config object being a duplicate of the
93 * specified lifetime config object or NULL if a failure occured.
94 */
95 struct xfrmnl_ltime_cfg* xfrmnl_ltime_cfg_clone(struct xfrmnl_ltime_cfg* ltime)
96 {
97 struct xfrmnl_ltime_cfg* new;
98
99 new = xfrmnl_ltime_cfg_alloc();
100 if (new)
101 memcpy ((void*)new, (void*)ltime, sizeof (struct xfrmnl_ltime_cfg));
102
103 return new;
104 }
105
106 /** @} */
107
108 /**
109 * @name Managing Usage References
110 * @{
111 */
112
113 struct xfrmnl_ltime_cfg* xfrmnl_ltime_cfg_get(struct xfrmnl_ltime_cfg* ltime)
114 {
115 ltime->refcnt++;
116
117 return ltime;
118 }
119
120 void xfrmnl_ltime_cfg_put(struct xfrmnl_ltime_cfg* ltime)
121 {
122 if (!ltime)
123 return;
124
125 if (ltime->refcnt == 1)
126 ltime_cfg_destroy(ltime);
127 else
128 ltime->refcnt--;
129 }
130
131 /**
132 * Check whether an lifetime config object is shared.
133 * @arg addr Selector object.
134 * @return Non-zero if the lifetime config object is shared, otherwise 0.
135 */
136 int xfrmnl_ltime_cfg_shared(struct xfrmnl_ltime_cfg* ltime)
137 {
138 return ltime->refcnt > 1;
139 }
140
141 /** @} */
142
143 /**
144 * @name Miscellaneous
145 * @{
146 */
147
148 /**
149 * Compares two lifetime config objects.
150 * @arg a A lifetime config object.
151 * @arg b Another lifetime config object.
152 *
153 * @return Non zero if difference is found, 0 otherwise if both
154 * the objects are identical.
155 */
156 int xfrmnl_ltime_cfg_cmp(struct xfrmnl_ltime_cfg* a, struct xfrmnl_ltime_cfg* b)
157 {
158 /* Check for any differences */
159 if ((a->soft_byte_limit != b->soft_byte_limit) ||
160 (a->soft_packet_limit != b->soft_packet_limit) ||
161 (a->hard_byte_limit != b->hard_byte_limit) ||
162 (a->hard_packet_limit != b->hard_packet_limit) ||
163 (a->soft_add_expires_seconds != b->soft_add_expires_seconds) ||
164 (a->hard_add_expires_seconds != b->hard_add_expires_seconds) ||
165 (a->soft_use_expires_seconds != b->soft_use_expires_seconds) ||
166 (a->hard_use_expires_seconds != b->hard_use_expires_seconds))
167 return 1;
168
169 /* The objects are identical */
170 return 0;
171 }
172
173 /** @} */
174
175 /**
176 * @name Attributes
177 * @{
178 */
179 unsigned long long xfrmnl_ltime_cfg_get_soft_bytelimit (struct xfrmnl_ltime_cfg* ltime)
180 {
181 return ltime->soft_byte_limit;
182 }
183
184 int xfrmnl_ltime_cfg_set_soft_bytelimit (struct xfrmnl_ltime_cfg* ltime, unsigned long long soft_byte_limit)
185 {
186 ltime->soft_byte_limit = soft_byte_limit;
187
188 return 0;
189 }
190
191 unsigned long long xfrmnl_ltime_cfg_get_hard_bytelimit (struct xfrmnl_ltime_cfg* ltime)
192 {
193 return ltime->hard_byte_limit;
194 }
195
196 int xfrmnl_ltime_cfg_set_hard_bytelimit (struct xfrmnl_ltime_cfg* ltime, unsigned long long hard_byte_limit)
197 {
198 ltime->hard_byte_limit = hard_byte_limit;
199
200 return 0;
201 }
202
203 unsigned long long xfrmnl_ltime_cfg_get_soft_packetlimit (struct xfrmnl_ltime_cfg* ltime)
204 {
205 return ltime->soft_packet_limit;
206 }
207
208 int xfrmnl_ltime_cfg_set_soft_packetlimit (struct xfrmnl_ltime_cfg* ltime, unsigned long long soft_packet_limit)
209 {
210 ltime->soft_packet_limit = soft_packet_limit;
211
212 return 0;
213 }
214
215 unsigned long long xfrmnl_ltime_cfg_get_hard_packetlimit (struct xfrmnl_ltime_cfg* ltime)
216 {
217 return ltime->hard_packet_limit;
218 }
219
220 int xfrmnl_ltime_cfg_set_hard_packetlimit (struct xfrmnl_ltime_cfg* ltime, unsigned long long hard_packet_limit)
221 {
222 ltime->hard_packet_limit = hard_packet_limit;
223
224 return 0;
225 }
226
227 unsigned long long xfrmnl_ltime_cfg_get_soft_addexpires (struct xfrmnl_ltime_cfg* ltime)
228 {
229 return ltime->soft_add_expires_seconds;
230 }
231
232 int xfrmnl_ltime_cfg_set_soft_addexpires (struct xfrmnl_ltime_cfg* ltime, unsigned long long soft_add_expires_seconds)
233 {
234 ltime->soft_add_expires_seconds = soft_add_expires_seconds;
235
236 return 0;
237 }
238
239 unsigned long long xfrmnl_ltime_cfg_get_hard_addexpires (struct xfrmnl_ltime_cfg* ltime)
240 {
241 return ltime->hard_add_expires_seconds;
242 }
243
244 int xfrmnl_ltime_cfg_set_hard_addexpires (struct xfrmnl_ltime_cfg* ltime, unsigned long long hard_add_expires_seconds)
245 {
246 ltime->hard_add_expires_seconds = hard_add_expires_seconds;
247
248 return 0;
249 }
250
251 unsigned long long xfrmnl_ltime_cfg_get_soft_useexpires (struct xfrmnl_ltime_cfg* ltime)
252 {
253 return ltime->soft_use_expires_seconds;
254 }
255
256 int xfrmnl_ltime_cfg_set_soft_useexpires (struct xfrmnl_ltime_cfg* ltime, unsigned long long soft_use_expires_seconds)
257 {
258 ltime->soft_use_expires_seconds = soft_use_expires_seconds;
259
260 return 0;
261 }
262
263 unsigned long long xfrmnl_ltime_cfg_get_hard_useexpires (struct xfrmnl_ltime_cfg* ltime)
264 {
265 return ltime->hard_use_expires_seconds;
266 }
267
268 int xfrmnl_ltime_cfg_set_hard_useexpires (struct xfrmnl_ltime_cfg* ltime, unsigned long long hard_use_expires_seconds)
269 {
270 ltime->hard_use_expires_seconds = hard_use_expires_seconds;
271
272 return 0;
273 }
274
275 /** @} */
xfrmnl_ltime_cfg_alloc
struct xfrmnl_ltime_cfg * xfrmnl_ltime_cfg_alloc()
Allocate new lifetime config object.
Definition: lifetime.c:76
xfrmnl_ltime_cfg_cmp
int xfrmnl_ltime_cfg_cmp(struct xfrmnl_ltime_cfg *a, struct xfrmnl_ltime_cfg *b)
Compares two lifetime config objects.
Definition: lifetime.c:156
xfrmnl_ltime_cfg_shared
int xfrmnl_ltime_cfg_shared(struct xfrmnl_ltime_cfg *ltime)
Check whether an lifetime config object is shared.
Definition: lifetime.c:136
xfrmnl_ltime_cfg_clone
struct xfrmnl_ltime_cfg * xfrmnl_ltime_cfg_clone(struct xfrmnl_ltime_cfg *ltime)
Clone existing lifetime config object.
Definition: lifetime.c:95