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Commit | Line | Data |
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62867571 | 1 | /* |
83cf7abf | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
d86b6915 | 3 | * |
62867571 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d86b6915 RL |
8 | */ |
9 | ||
10 | /* Part of the code in here was originally in conf.c, which is now removed */ | |
11 | ||
07016a8a | 12 | #include "e_os.h" |
5c39a55d | 13 | #include "internal/cryptlib.h" |
2c1f5ce4 | 14 | #include <stdlib.h> |
0baed24c | 15 | #include <string.h> |
d86b6915 RL |
16 | #include <openssl/conf.h> |
17 | #include <openssl/conf_api.h> | |
18 | ||
2a056de8 | 19 | static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf); |
5ce278a7 | 20 | static void value_free_stack_doall(CONF_VALUE *a); |
97b17195 | 21 | |
21346b7a | 22 | /* Up until OpenSSL 0.9.5a, this was get_section */ |
9dd5ae65 | 23 | CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section) |
0f113f3e MC |
24 | { |
25 | CONF_VALUE *v, vv; | |
d86b6915 | 26 | |
0f113f3e | 27 | if ((conf == NULL) || (section == NULL)) |
26a7d938 | 28 | return NULL; |
0f113f3e MC |
29 | vv.name = NULL; |
30 | vv.section = (char *)section; | |
31 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
26a7d938 | 32 | return v; |
0f113f3e | 33 | } |
d86b6915 | 34 | |
21346b7a | 35 | /* Up until OpenSSL 0.9.5a, this was CONF_get_section */ |
9dd5ae65 | 36 | STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf, |
0f113f3e MC |
37 | const char *section) |
38 | { | |
39 | CONF_VALUE *v; | |
d86b6915 | 40 | |
0f113f3e MC |
41 | v = _CONF_get_section(conf, section); |
42 | if (v != NULL) | |
43 | return ((STACK_OF(CONF_VALUE) *)v->value); | |
44 | else | |
26a7d938 | 45 | return NULL; |
0f113f3e | 46 | } |
d86b6915 RL |
47 | |
48 | int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value) | |
0f113f3e MC |
49 | { |
50 | CONF_VALUE *v = NULL; | |
51 | STACK_OF(CONF_VALUE) *ts; | |
52 | ||
53 | ts = (STACK_OF(CONF_VALUE) *)section->value; | |
54 | ||
55 | value->section = section->section; | |
56 | if (!sk_CONF_VALUE_push(ts, value)) { | |
57 | return 0; | |
58 | } | |
59 | ||
60 | v = lh_CONF_VALUE_insert(conf->data, value); | |
61 | if (v != NULL) { | |
62 | (void)sk_CONF_VALUE_delete_ptr(ts, v); | |
63 | OPENSSL_free(v->name); | |
64 | OPENSSL_free(v->value); | |
65 | OPENSSL_free(v); | |
66 | } | |
67 | return 1; | |
68 | } | |
69 | ||
70 | char *_CONF_get_string(const CONF *conf, const char *section, | |
71 | const char *name) | |
72 | { | |
73 | CONF_VALUE *v, vv; | |
74 | char *p; | |
75 | ||
76 | if (name == NULL) | |
26a7d938 | 77 | return NULL; |
0f113f3e MC |
78 | if (conf != NULL) { |
79 | if (section != NULL) { | |
80 | vv.name = (char *)name; | |
81 | vv.section = (char *)section; | |
82 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
83 | if (v != NULL) | |
26a7d938 | 84 | return v->value; |
0f113f3e | 85 | if (strcmp(section, "ENV") == 0) { |
5c39a55d | 86 | p = ossl_safe_getenv(name); |
0f113f3e | 87 | if (p != NULL) |
26a7d938 | 88 | return p; |
0f113f3e MC |
89 | } |
90 | } | |
91 | vv.section = "default"; | |
92 | vv.name = (char *)name; | |
93 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
94 | if (v != NULL) | |
26a7d938 | 95 | return v->value; |
0f113f3e | 96 | else |
26a7d938 | 97 | return NULL; |
0f113f3e | 98 | } else |
5c39a55d | 99 | return ossl_safe_getenv(name); |
0f113f3e MC |
100 | } |
101 | ||
3c1d6bbc | 102 | static unsigned long conf_value_hash(const CONF_VALUE *v) |
0f113f3e | 103 | { |
739a1eb1 | 104 | return (OPENSSL_LH_strhash(v->section) << 2) ^ OPENSSL_LH_strhash(v->name); |
0f113f3e MC |
105 | } |
106 | ||
3c1d6bbc | 107 | static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b) |
0f113f3e MC |
108 | { |
109 | int i; | |
110 | ||
111 | if (a->section != b->section) { | |
112 | i = strcmp(a->section, b->section); | |
113 | if (i) | |
26a7d938 | 114 | return i; |
0f113f3e MC |
115 | } |
116 | ||
117 | if ((a->name != NULL) && (b->name != NULL)) { | |
118 | i = strcmp(a->name, b->name); | |
26a7d938 | 119 | return i; |
0f113f3e | 120 | } else if (a->name == b->name) |
26a7d938 | 121 | return 0; |
0f113f3e MC |
122 | else |
123 | return ((a->name == NULL) ? -1 : 1); | |
124 | } | |
125 | ||
d86b6915 | 126 | int _CONF_new_data(CONF *conf) |
0f113f3e MC |
127 | { |
128 | if (conf == NULL) { | |
129 | return 0; | |
130 | } | |
62d0577e DSH |
131 | if (conf->data == NULL) { |
132 | conf->data = lh_CONF_VALUE_new(conf_value_hash, conf_value_cmp); | |
133 | if (conf->data == NULL) | |
0f113f3e | 134 | return 0; |
62d0577e | 135 | } |
0f113f3e MC |
136 | return 1; |
137 | } | |
d86b6915 | 138 | |
2a056de8 DSH |
139 | typedef LHASH_OF(CONF_VALUE) LH_CONF_VALUE; |
140 | ||
141 | IMPLEMENT_LHASH_DOALL_ARG_CONST(CONF_VALUE, LH_CONF_VALUE); | |
142 | ||
d86b6915 | 143 | void _CONF_free_data(CONF *conf) |
0f113f3e MC |
144 | { |
145 | if (conf == NULL || conf->data == NULL) | |
146 | return; | |
147 | ||
e6b5c341 DSH |
148 | /* evil thing to make sure the 'OPENSSL_free()' works as expected */ |
149 | lh_CONF_VALUE_set_down_load(conf->data, 0); | |
2a056de8 | 150 | lh_CONF_VALUE_doall_LH_CONF_VALUE(conf->data, value_free_hash, conf->data); |
0f113f3e MC |
151 | |
152 | /* | |
153 | * We now have only 'section' entries in the hash table. Due to problems | |
154 | * with | |
155 | */ | |
156 | ||
63c75cd6 | 157 | lh_CONF_VALUE_doall(conf->data, value_free_stack_doall); |
0f113f3e MC |
158 | lh_CONF_VALUE_free(conf->data); |
159 | } | |
d86b6915 | 160 | |
2a056de8 | 161 | static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf) |
0f113f3e MC |
162 | { |
163 | if (a->name != NULL) | |
164 | (void)lh_CONF_VALUE_delete(conf, a); | |
165 | } | |
d86b6915 | 166 | |
5ce278a7 | 167 | static void value_free_stack_doall(CONF_VALUE *a) |
0f113f3e MC |
168 | { |
169 | CONF_VALUE *vv; | |
170 | STACK_OF(CONF_VALUE) *sk; | |
171 | int i; | |
172 | ||
173 | if (a->name != NULL) | |
174 | return; | |
175 | ||
176 | sk = (STACK_OF(CONF_VALUE) *)a->value; | |
177 | for (i = sk_CONF_VALUE_num(sk) - 1; i >= 0; i--) { | |
178 | vv = sk_CONF_VALUE_value(sk, i); | |
179 | OPENSSL_free(vv->value); | |
180 | OPENSSL_free(vv->name); | |
181 | OPENSSL_free(vv); | |
182 | } | |
efa7dd64 | 183 | sk_CONF_VALUE_free(sk); |
0f113f3e MC |
184 | OPENSSL_free(a->section); |
185 | OPENSSL_free(a); | |
186 | } | |
d86b6915 | 187 | |
21346b7a | 188 | /* Up until OpenSSL 0.9.5a, this was new_section */ |
9dd5ae65 | 189 | CONF_VALUE *_CONF_new_section(CONF *conf, const char *section) |
0f113f3e MC |
190 | { |
191 | STACK_OF(CONF_VALUE) *sk = NULL; | |
efa7dd64 | 192 | int i; |
0f113f3e MC |
193 | CONF_VALUE *v = NULL, *vv; |
194 | ||
195 | if ((sk = sk_CONF_VALUE_new_null()) == NULL) | |
196 | goto err; | |
b4faea50 | 197 | if ((v = OPENSSL_malloc(sizeof(*v))) == NULL) |
0f113f3e MC |
198 | goto err; |
199 | i = strlen(section) + 1; | |
200 | if ((v->section = OPENSSL_malloc(i)) == NULL) | |
201 | goto err; | |
202 | ||
203 | memcpy(v->section, section, i); | |
204 | v->name = NULL; | |
205 | v->value = (char *)sk; | |
206 | ||
207 | vv = lh_CONF_VALUE_insert(conf->data, v); | |
aebd0e5c | 208 | if (vv != NULL || lh_CONF_VALUE_error(conf->data) > 0) |
64d9844a | 209 | goto err; |
efa7dd64 RS |
210 | return v; |
211 | ||
0f113f3e | 212 | err: |
efa7dd64 | 213 | sk_CONF_VALUE_free(sk); |
aebd0e5c PK |
214 | if (v != NULL) |
215 | OPENSSL_free(v->section); | |
efa7dd64 RS |
216 | OPENSSL_free(v); |
217 | return NULL; | |
0f113f3e | 218 | } |