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-rw-r--r--src/lib/libcrypto/objects/o_names.c255
1 files changed, 11 insertions, 244 deletions
diff --git a/src/lib/libcrypto/objects/o_names.c b/src/lib/libcrypto/objects/o_names.c
index 1007c5e23a..566ada4d49 100644
--- a/src/lib/libcrypto/objects/o_names.c
+++ b/src/lib/libcrypto/objects/o_names.c
@@ -1,51 +1,12 @@
1/* $OpenBSD: o_names.c,v 1.25 2024/01/13 11:08:39 tb Exp $ */ 1/* $OpenBSD: o_names.c,v 1.26 2024/01/13 11:38:45 tb Exp $ */
2#include <stdio.h>
3#include <stdlib.h>
4#include <string.h>
5
6#include <openssl/opensslconf.h>
7
8#include <openssl/err.h> 2#include <openssl/err.h>
9#include <openssl/lhash.h>
10#include <openssl/objects.h> 3#include <openssl/objects.h>
11#include <openssl/safestack.h>
12
13/* I use the ex_data stuff to manage the identifiers for the obj_name_types
14 * that applications may define. I only really use the free function field.
15 */
16DECLARE_LHASH_OF(OBJ_NAME);
17static LHASH_OF(OBJ_NAME) *names_lh = NULL;
18static int names_type_num = OBJ_NAME_TYPE_NUM;
19
20typedef struct name_funcs_st {
21 unsigned long (*hash_func)(const char *name);
22 int (*cmp_func)(const char *a, const char *b);
23 void (*free_func)(const char *, int, const char *);
24} NAME_FUNCS;
25
26DECLARE_STACK_OF(NAME_FUNCS)
27
28static STACK_OF(NAME_FUNCS) *name_funcs_stack;
29
30/* The LHASH callbacks now use the raw "void *" prototypes and do per-variable
31 * casting in the functions. This prevents function pointer casting without the
32 * need for macro-generated wrapper functions. */
33
34/* static unsigned long obj_name_hash(OBJ_NAME *a); */
35static unsigned long obj_name_hash(const void *a_void);
36/* static int obj_name_cmp(OBJ_NAME *a,OBJ_NAME *b); */
37static int obj_name_cmp(const void *a_void, const void *b_void);
38
39static IMPLEMENT_LHASH_HASH_FN(obj_name, OBJ_NAME)
40static IMPLEMENT_LHASH_COMP_FN(obj_name, OBJ_NAME)
41 4
42int 5int
43OBJ_NAME_init(void) 6OBJ_NAME_init(void)
44{ 7{
45 if (names_lh != NULL) 8 OBJerror(ERR_R_DISABLED);
46 return (1); 9 return 0;
47 names_lh = lh_OBJ_NAME_new();
48 return (names_lh != NULL);
49} 10}
50LCRYPTO_ALIAS(OBJ_NAME_init); 11LCRYPTO_ALIAS(OBJ_NAME_init);
51 12
@@ -54,231 +15,37 @@ OBJ_NAME_new_index(unsigned long (*hash_func)(const char *),
54 int (*cmp_func)(const char *, const char *), 15 int (*cmp_func)(const char *, const char *),
55 void (*free_func)(const char *, int, const char *)) 16 void (*free_func)(const char *, int, const char *))
56{ 17{
57 int ret; 18 OBJerror(ERR_R_DISABLED);
58 int i; 19 return 0;
59 NAME_FUNCS *name_funcs;
60
61 if (name_funcs_stack == NULL)
62 name_funcs_stack = sk_NAME_FUNCS_new_null();
63 if (name_funcs_stack == NULL)
64 return (0);
65
66 ret = names_type_num;
67 names_type_num++;
68 for (i = sk_NAME_FUNCS_num(name_funcs_stack); i < names_type_num; i++) {
69 name_funcs = malloc(sizeof(NAME_FUNCS));
70 if (!name_funcs) {
71 OBJerror(ERR_R_MALLOC_FAILURE);
72 return (0);
73 }
74 name_funcs->hash_func = lh_strhash;
75 name_funcs->cmp_func = strcmp;
76 name_funcs->free_func = NULL;
77 if (sk_NAME_FUNCS_push(name_funcs_stack, name_funcs) == 0) {
78 free(name_funcs);
79 OBJerror(ERR_R_MALLOC_FAILURE);
80 return (0);
81 }
82 }
83 name_funcs = sk_NAME_FUNCS_value(name_funcs_stack, ret);
84 if (hash_func != NULL)
85 name_funcs->hash_func = hash_func;
86 if (cmp_func != NULL)
87 name_funcs->cmp_func = cmp_func;
88 if (free_func != NULL)
89 name_funcs->free_func = free_func;
90 return (ret);
91} 20}
92LCRYPTO_ALIAS(OBJ_NAME_new_index); 21LCRYPTO_ALIAS(OBJ_NAME_new_index);
93 22
94/* static int obj_name_cmp(OBJ_NAME *a, OBJ_NAME *b) */
95static int
96obj_name_cmp(const void *a_void, const void *b_void)
97{
98 int ret;
99 const OBJ_NAME *a = (const OBJ_NAME *)a_void;
100 const OBJ_NAME *b = (const OBJ_NAME *)b_void;
101
102 ret = a->type - b->type;
103 if (ret == 0) {
104 if ((name_funcs_stack != NULL) &&
105 (sk_NAME_FUNCS_num(name_funcs_stack) > a->type)) {
106 ret = sk_NAME_FUNCS_value(name_funcs_stack,
107 a->type)->cmp_func(a->name, b->name);
108 } else
109 ret = strcmp(a->name, b->name);
110 }
111 return (ret);
112}
113
114/* static unsigned long obj_name_hash(OBJ_NAME *a) */
115static unsigned long
116obj_name_hash(const void *a_void)
117{
118 unsigned long ret;
119 const OBJ_NAME *a = (const OBJ_NAME *)a_void;
120
121 if ((name_funcs_stack != NULL) &&
122 (sk_NAME_FUNCS_num(name_funcs_stack) > a->type)) {
123 ret = sk_NAME_FUNCS_value(name_funcs_stack,
124 a->type)->hash_func(a->name);
125 } else {
126 ret = lh_strhash(a->name);
127 }
128 ret ^= a->type;
129 return (ret);
130}
131
132const char * 23const char *
133OBJ_NAME_get(const char *name, int type) 24OBJ_NAME_get(const char *name, int type)
134{ 25{
135 OBJ_NAME on, *ret; 26 OBJerror(ERR_R_DISABLED);
136 int num = 0, alias; 27 return NULL;
137
138 if (name == NULL)
139 return (NULL);
140 if ((names_lh == NULL) && !OBJ_NAME_init())
141 return (NULL);
142
143 alias = type&OBJ_NAME_ALIAS;
144 type&= ~OBJ_NAME_ALIAS;
145
146 on.name = name;
147 on.type = type;
148
149 for (;;) {
150 ret = lh_OBJ_NAME_retrieve(names_lh, &on);
151 if (ret == NULL)
152 return (NULL);
153 if ((ret->alias) && !alias) {
154 if (++num > 10)
155 return (NULL);
156 on.name = ret->data;
157 } else {
158 return (ret->data);
159 }
160 }
161} 28}
162LCRYPTO_ALIAS(OBJ_NAME_get); 29LCRYPTO_ALIAS(OBJ_NAME_get);
163 30
164int 31int
165OBJ_NAME_add(const char *name, int type, const char *data) 32OBJ_NAME_add(const char *name, int type, const char *data)
166{ 33{
167 OBJ_NAME *onp, *ret; 34 /* No error to avoid polluting xca's error stack. */
168 int alias; 35 return 0;
169
170 if ((names_lh == NULL) && !OBJ_NAME_init())
171 return (0);
172
173 alias = type & OBJ_NAME_ALIAS;
174 type &= ~OBJ_NAME_ALIAS;
175
176 onp = malloc(sizeof(OBJ_NAME));
177 if (onp == NULL) {
178 /* ERROR */
179 return (0);
180 }
181
182 onp->name = name;
183 onp->alias = alias;
184 onp->type = type;
185 onp->data = data;
186
187 ret = lh_OBJ_NAME_insert(names_lh, onp);
188 if (ret != NULL) {
189 /* free things */
190 if ((name_funcs_stack != NULL) &&
191 (sk_NAME_FUNCS_num(name_funcs_stack) > ret->type)) {
192 /* XXX: I'm not sure I understand why the free
193 * function should get three arguments...
194 * -- Richard Levitte
195 */
196 sk_NAME_FUNCS_value(
197 name_funcs_stack, ret->type)->free_func(
198 ret->name, ret->type, ret->data);
199 }
200 free(ret);
201 } else {
202 if (lh_OBJ_NAME_error(names_lh)) {
203 free(onp);
204 /* ERROR */
205 return (0);
206 }
207 }
208 return (1);
209} 36}
210LCRYPTO_ALIAS(OBJ_NAME_add); 37LCRYPTO_ALIAS(OBJ_NAME_add);
211 38
212int 39int
213OBJ_NAME_remove(const char *name, int type) 40OBJ_NAME_remove(const char *name, int type)
214{ 41{
215 OBJ_NAME on, *ret; 42 OBJerror(ERR_R_DISABLED);
216 43 return 0;
217 if (names_lh == NULL)
218 return (0);
219
220 type &= ~OBJ_NAME_ALIAS;
221 on.name = name;
222 on.type = type;
223 ret = lh_OBJ_NAME_delete(names_lh, &on);
224 if (ret != NULL) {
225 /* free things */
226 if ((name_funcs_stack != NULL) &&
227 (sk_NAME_FUNCS_num(name_funcs_stack) > ret->type)) {
228 /* XXX: I'm not sure I understand why the free
229 * function should get three arguments...
230 * -- Richard Levitte
231 */
232 sk_NAME_FUNCS_value(
233 name_funcs_stack, ret->type)->free_func(
234 ret->name, ret->type, ret->data);
235 }
236 free(ret);
237 return (1);
238 } else
239 return (0);
240} 44}
241LCRYPTO_ALIAS(OBJ_NAME_remove); 45LCRYPTO_ALIAS(OBJ_NAME_remove);
242 46
243static int free_type;
244
245static void
246names_lh_free_doall(OBJ_NAME *onp)
247{
248 if (onp == NULL)
249 return;
250
251 if (free_type < 0 || free_type == onp->type)
252 OBJ_NAME_remove(onp->name, onp->type);
253}
254
255static IMPLEMENT_LHASH_DOALL_FN(names_lh_free, OBJ_NAME)
256
257static void
258name_funcs_free(NAME_FUNCS *ptr)
259{
260 free(ptr);
261}
262
263void 47void
264OBJ_NAME_cleanup(int type) 48OBJ_NAME_cleanup(int type)
265{ 49{
266 unsigned long down_load;
267
268 if (names_lh == NULL)
269 return;
270
271 free_type = type;
272 down_load = lh_OBJ_NAME_down_load(names_lh);
273 lh_OBJ_NAME_down_load(names_lh) = 0;
274
275 lh_OBJ_NAME_doall(names_lh, LHASH_DOALL_FN(names_lh_free));
276 if (type < 0) {
277 lh_OBJ_NAME_free(names_lh);
278 sk_NAME_FUNCS_pop_free(name_funcs_stack, name_funcs_free);
279 names_lh = NULL;
280 name_funcs_stack = NULL;
281 } else
282 lh_OBJ_NAME_down_load(names_lh) = down_load;
283} 50}
284LCRYPTO_ALIAS(OBJ_NAME_cleanup); 51LCRYPTO_ALIAS(OBJ_NAME_cleanup);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-07 10:48:05 +0000