16dbf8d4131dd99c22aacea269d4c2cb53b5bcd6
[strongswan.git] / src / libstrongswan / ipsec / ipsec_types.c
1 /*
2 * Copyright (C) 2012-2013 Tobias Brunner
3 * HSR Hochschule fuer Technik Rapperswil
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 */
15
16 #include "ipsec_types.h"
17
18 ENUM(ipsec_mode_names, MODE_TRANSPORT, MODE_DROP,
19 "TRANSPORT",
20 "TUNNEL",
21 "BEET",
22 "PASS",
23 "DROP"
24 );
25
26 ENUM(policy_dir_names, POLICY_IN, POLICY_FWD,
27 "in",
28 "out",
29 "fwd"
30 );
31
32 ENUM(ipcomp_transform_names, IPCOMP_NONE, IPCOMP_LZJH,
33 "IPCOMP_NONE",
34 "IPCOMP_OUI",
35 "IPCOMP_DEFLATE",
36 "IPCOMP_LZS",
37 "IPCOMP_LZJH"
38 );
39
40 ENUM(hw_offload_names, HW_OFFLOAD_NO, HW_OFFLOAD_AUTO,
41 "no",
42 "yes",
43 "auto",
44 );
45
46 /*
47 * See header
48 */
49 bool ipsec_sa_cfg_equals(ipsec_sa_cfg_t *a, ipsec_sa_cfg_t *b)
50 {
51 return a->mode == b->mode &&
52 a->reqid == b->reqid &&
53 a->policy_count == b->policy_count &&
54 a->esp.use == b->esp.use &&
55 a->esp.spi == b->esp.spi &&
56 a->ah.use == b->ah.use &&
57 a->ah.spi == b->ah.spi &&
58 a->ipcomp.transform == b->ipcomp.transform &&
59 a->ipcomp.cpi == b->ipcomp.cpi;
60 }
61
62 /*
63 * See header
64 */
65 bool mark_from_string(const char *value, mark_t *mark)
66 {
67 char *endptr;
68
69 if (!value)
70 {
71 return FALSE;
72 }
73 if (strcasepfx(value, "%unique"))
74 {
75 endptr = (char*)value + strlen("%unique");
76 if (strcasepfx(endptr, "-dir"))
77 {
78 mark->value = MARK_UNIQUE_DIR;
79 endptr += strlen("-dir");
80 }
81 else if (!*endptr || *endptr == '/')
82 {
83 mark->value = MARK_UNIQUE;
84 }
85 else
86 {
87 DBG1(DBG_APP, "invalid mark value: %s", value);
88 return FALSE;
89 }
90 }
91 else
92 {
93 mark->value = strtoul(value, &endptr, 0);
94 }
95 if (*endptr)
96 {
97 if (*endptr != '/')
98 {
99 DBG1(DBG_APP, "invalid mark value: %s", value);
100 return FALSE;
101 }
102 mark->mask = strtoul(endptr+1, &endptr, 0);
103 if (*endptr)
104 {
105 DBG1(DBG_LIB, "invalid mark mask: %s", endptr);
106 return FALSE;
107 }
108 }
109 else
110 {
111 mark->mask = 0xffffffff;
112 }
113 if (!MARK_IS_UNIQUE(mark->value))
114 {
115 /* apply the mask to ensure the value is in range */
116 mark->value &= mark->mask;
117 }
118 return TRUE;
119 }