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eng_dyn.c

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1/*-
2 * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.-
3 *-
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-
8 */-
9-
10#include "eng_int.h"-
11#include "internal/dso.h"-
12#include <openssl/crypto.h>-
13-
14/*-
15 * Shared libraries implementing ENGINEs for use by the "dynamic" ENGINE-
16 * loader should implement the hook-up functions with the following-
17 * prototypes.-
18 */-
19-
20/* Our ENGINE handlers */-
21static int dynamic_init(ENGINE *e);-
22static int dynamic_finish(ENGINE *e);-
23static int dynamic_ctrl(ENGINE *e, int cmd, long i, void *p,-
24 void (*f) (void));-
25/* Predeclare our context type */-
26typedef struct st_dynamic_data_ctx dynamic_data_ctx;-
27/* The implementation for the important control command */-
28static int dynamic_load(ENGINE *e, dynamic_data_ctx *ctx);-
29-
30#define DYNAMIC_CMD_SO_PATH ENGINE_CMD_BASE-
31#define DYNAMIC_CMD_NO_VCHECK (ENGINE_CMD_BASE + 1)-
32#define DYNAMIC_CMD_ID (ENGINE_CMD_BASE + 2)-
33#define DYNAMIC_CMD_LIST_ADD (ENGINE_CMD_BASE + 3)-
34#define DYNAMIC_CMD_DIR_LOAD (ENGINE_CMD_BASE + 4)-
35#define DYNAMIC_CMD_DIR_ADD (ENGINE_CMD_BASE + 5)-
36#define DYNAMIC_CMD_LOAD (ENGINE_CMD_BASE + 6)-
37-
38/* The constants used when creating the ENGINE */-
39static const char *engine_dynamic_id = "dynamic";-
40static const char *engine_dynamic_name = "Dynamic engine loading support";-
41static const ENGINE_CMD_DEFN dynamic_cmd_defns[] = {-
42 {DYNAMIC_CMD_SO_PATH,-
43 "SO_PATH",-
44 "Specifies the path to the new ENGINE shared library",-
45 ENGINE_CMD_FLAG_STRING},-
46 {DYNAMIC_CMD_NO_VCHECK,-
47 "NO_VCHECK",-
48 "Specifies to continue even if version checking fails (boolean)",-
49 ENGINE_CMD_FLAG_NUMERIC},-
50 {DYNAMIC_CMD_ID,-
51 "ID",-
52 "Specifies an ENGINE id name for loading",-
53 ENGINE_CMD_FLAG_STRING},-
54 {DYNAMIC_CMD_LIST_ADD,-
55 "LIST_ADD",-
56 "Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)",-
57 ENGINE_CMD_FLAG_NUMERIC},-
58 {DYNAMIC_CMD_DIR_LOAD,-
59 "DIR_LOAD",-
60 "Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)",-
61 ENGINE_CMD_FLAG_NUMERIC},-
62 {DYNAMIC_CMD_DIR_ADD,-
63 "DIR_ADD",-
64 "Adds a directory from which ENGINEs can be loaded",-
65 ENGINE_CMD_FLAG_STRING},-
66 {DYNAMIC_CMD_LOAD,-
67 "LOAD",-
68 "Load up the ENGINE specified by other settings",-
69 ENGINE_CMD_FLAG_NO_INPUT},-
70 {0, NULL, NULL, 0}-
71};-
72-
73/*-
74 * Loading code stores state inside the ENGINE structure via the "ex_data"-
75 * element. We load all our state into a single structure and use that as a-
76 * single context in the "ex_data" stack.-
77 */-
78struct st_dynamic_data_ctx {-
79 /* The DSO object we load that supplies the ENGINE code */-
80 DSO *dynamic_dso;-
81 /*-
82 * The function pointer to the version checking shared library function-
83 */-
84 dynamic_v_check_fn v_check;-
85 /*-
86 * The function pointer to the engine-binding shared library function-
87 */-
88 dynamic_bind_engine bind_engine;-
89 /* The default name/path for loading the shared library */-
90 char *DYNAMIC_LIBNAME;-
91 /* Whether to continue loading on a version check failure */-
92 int no_vcheck;-
93 /* If non-NULL, stipulates the 'id' of the ENGINE to be loaded */-
94 char *engine_id;-
95 /*-
96 * If non-zero, a successfully loaded ENGINE should be added to the-
97 * internal ENGINE list. If 2, the add must succeed or the entire load-
98 * should fail.-
99 */-
100 int list_add_value;-
101 /* The symbol name for the version checking function */-
102 const char *DYNAMIC_F1;-
103 /* The symbol name for the "initialise ENGINE structure" function */-
104 const char *DYNAMIC_F2;-
105 /*-
106 * Whether to never use 'dirs', use 'dirs' as a fallback, or only use-
107 * 'dirs' for loading. Default is to use 'dirs' as a fallback.-
108 */-
109 int dir_load;-
110 /* A stack of directories from which ENGINEs could be loaded */-
111 STACK_OF(OPENSSL_STRING) *dirs;-
112};-
113-
114/*-
115 * This is the "ex_data" index we obtain and reserve for use with our context-
116 * structure.-
117 */-
118static int dynamic_ex_data_idx = -1;-
119-
120static void int_free_str(char *s)-
121{-
122 OPENSSL_free(s);-
123}
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
124-
125/*-
126 * Because our ex_data element may or may not get allocated depending on-
127 * whether a "first-use" occurs before the ENGINE is freed, we have a memory-
128 * leak problem to solve. We can't declare a "new" handler for the ex_data as-
129 * we don't want a dynamic_data_ctx in *all* ENGINE structures of all types-
130 * (this is a bug in the design of CRYPTO_EX_DATA). As such, we just declare-
131 * a "free" handler and that will get called if an ENGINE is being destroyed-
132 * and there was an ex_data element corresponding to our context type.-
133 */-
134static void dynamic_data_ctx_free_func(void *parent, void *ptr,-
135 CRYPTO_EX_DATA *ad, int idx, long argl,-
136 void *argp)-
137{-
138 if (ptr) {
ptrDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
368
139 dynamic_data_ctx *ctx = (dynamic_data_ctx *)ptr;-
140 DSO_free(ctx->dynamic_dso);-
141 OPENSSL_free(ctx->DYNAMIC_LIBNAME);-
142 OPENSSL_free(ctx->engine_id);-
143 sk_OPENSSL_STRING_pop_free(ctx->dirs, int_free_str);-
144 OPENSSL_free(ctx);-
145 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
146}
executed 736 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
736
147-
148/*-
149 * Construct the per-ENGINE context. We create it blindly and then use a lock-
150 * to check for a race - if so, all but one of the threads "racing" will have-
151 * wasted their time. The alternative involves creating everything inside the-
152 * lock which is far worse.-
153 */-
154static int dynamic_set_data_ctx(ENGINE *e, dynamic_data_ctx **ctx)-
155{-
156 dynamic_data_ctx *c = OPENSSL_zalloc(sizeof(*c));-
157 int ret = 1;-
158-
159 if (c == NULL) {
c == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
160 ENGINEerr(ENGINE_F_DYNAMIC_SET_DATA_CTX, ERR_R_MALLOC_FAILURE);-
161 return 0;
never executed: return 0;
0
162 }-
163 c->dirs = sk_OPENSSL_STRING_new_null();-
164 if (c->dirs == NULL) {
c->dirs == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
165 ENGINEerr(ENGINE_F_DYNAMIC_SET_DATA_CTX, ERR_R_MALLOC_FAILURE);-
166 OPENSSL_free(c);-
167 return 0;
never executed: return 0;
0
168 }-
169 c->DYNAMIC_F1 = "v_check";-
170 c->DYNAMIC_F2 = "bind_engine";-
171 c->dir_load = 1;-
172 CRYPTO_THREAD_write_lock(global_engine_lock);-
173 if ((*ctx = (dynamic_data_ctx *)ENGINE_get_ex_data(e,
(*ctx = (dynam...== ((void *)0)Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
174 dynamic_ex_data_idx))
(*ctx = (dynam...== ((void *)0)Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
175 == NULL) {
(*ctx = (dynam...== ((void *)0)Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
176 /* Good, we're the first */-
177 ret = ENGINE_set_ex_data(e, dynamic_ex_data_idx, c);-
178 if (ret) {
retDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
179 *ctx = c;-
180 c = NULL;-
181 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
182 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
183 CRYPTO_THREAD_unlock(global_engine_lock);-
184 /*-
185 * If we lost the race to set the context, c is non-NULL and *ctx is the-
186 * context of the thread that won.-
187 */-
188 if (c)
cDescription
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
189 sk_OPENSSL_STRING_free(c->dirs);
never executed: sk_OPENSSL_STRING_free(c->dirs);
0
190 OPENSSL_free(c);-
191 return ret;
executed 368 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
368
192}-
193-
194/*-
195 * This function retrieves the context structure from an ENGINE's "ex_data",-
196 * or if it doesn't exist yet, sets it up.-
197 */-
198static dynamic_data_ctx *dynamic_get_data_ctx(ENGINE *e)-
199{-
200 dynamic_data_ctx *ctx;-
201 if (dynamic_ex_data_idx < 0) {
dynamic_ex_data_idx < 0Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 1472 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
368-1472
202 /*-
203 * Create and register the ENGINE ex_data, and associate our "free"-
204 * function with it to ensure any allocated contexts get freed when-
205 * an ENGINE goes underground.-
206 */-
207 int new_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL,-
208 dynamic_data_ctx_free_func);-
209 if (new_idx == -1) {
new_idx == -1Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
210 ENGINEerr(ENGINE_F_DYNAMIC_GET_DATA_CTX, ENGINE_R_NO_INDEX);-
211 return NULL;
never executed: return ((void *)0) ;
0
212 }-
213 CRYPTO_THREAD_write_lock(global_engine_lock);-
214 /* Avoid a race by checking again inside this lock */-
215 if (dynamic_ex_data_idx < 0) {
dynamic_ex_data_idx < 0Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
216 /* Good, someone didn't beat us to it */-
217 dynamic_ex_data_idx = new_idx;-
218 new_idx = -1;-
219 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
220 CRYPTO_THREAD_unlock(global_engine_lock);-
221 /*-
222 * In theory we could "give back" the index here if (new_idx>-1), but-
223 * it's not possible and wouldn't gain us much if it were.-
224 */-
225 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
226 ctx = (dynamic_data_ctx *)ENGINE_get_ex_data(e, dynamic_ex_data_idx);-
227 /* Check if the context needs to be created */-
228 if ((ctx == NULL) && !dynamic_set_data_ctx(e, &ctx))
(ctx == ((void *)0) )Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 1472 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
!dynamic_set_data_ctx(e, &ctx)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1472
229 /* "set_data" will set errors if necessary */-
230 return NULL;
never executed: return ((void *)0) ;
0
231 return ctx;
executed 1840 times by 1 test: return ctx;
Executed by:
  • libcrypto.so.1.1
1840
232}-
233-
234static ENGINE *engine_dynamic(void)-
235{-
236 ENGINE *ret = ENGINE_new();-
237 if (ret == NULL)
ret == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
238 return NULL;
never executed: return ((void *)0) ;
0
239 if (!ENGINE_set_id(ret, engine_dynamic_id) ||
!ENGINE_set_id...ne_dynamic_id)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
240 !ENGINE_set_name(ret, engine_dynamic_name) ||
!ENGINE_set_na..._dynamic_name)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
241 !ENGINE_set_init_function(ret, dynamic_init) ||
!ENGINE_set_in... dynamic_init)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
242 !ENGINE_set_finish_function(ret, dynamic_finish) ||
!ENGINE_set_fi...ynamic_finish)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
243 !ENGINE_set_ctrl_function(ret, dynamic_ctrl) ||
!ENGINE_set_ct... dynamic_ctrl)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
244 !ENGINE_set_flags(ret, ENGINE_FLAGS_BY_ID_COPY) ||
!ENGINE_set_fl..., (int)0x0004)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
245 !ENGINE_set_cmd_defns(ret, dynamic_cmd_defns)) {
!ENGINE_set_cm...mic_cmd_defns)Description
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
246 ENGINE_free(ret);-
247 return NULL;
never executed: return ((void *)0) ;
0
248 }-
249 return ret;
executed 1959 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
1959
250}-
251-
252void engine_load_dynamic_int(void)-
253{-
254 ENGINE *toadd = engine_dynamic();-
255 if (!toadd)
!toaddDescription
TRUEnever evaluated
FALSEevaluated 1959 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1959
256 return;
never executed: return;
0
257 ENGINE_add(toadd);-
258 /*-
259 * If the "add" worked, it gets a structural reference. So either way, we-
260 * release our just-created reference.-
261 */-
262 ENGINE_free(toadd);-
263 /*-
264 * If the "add" didn't work, it was probably a conflict because it was-
265 * already added (eg. someone calling ENGINE_load_blah then calling-
266 * ENGINE_load_builtin_engines() perhaps).-
267 */-
268 ERR_clear_error();-
269}
executed 1959 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
1959
270-
271static int dynamic_init(ENGINE *e)-
272{-
273 /*-
274 * We always return failure - the "dynamic" engine itself can't be used-
275 * for anything.-
276 */-
277 return 0;
never executed: return 0;
0
278}-
279-
280static int dynamic_finish(ENGINE *e)-
281{-
282 /*-
283 * This should never be called on account of "dynamic_init" always-
284 * failing.-
285 */-
286 return 0;
never executed: return 0;
0
287}-
288-
289static int dynamic_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))-
290{-
291 dynamic_data_ctx *ctx = dynamic_get_data_ctx(e);-
292 int initialised;-
293-
294 if (!ctx) {
!ctxDescription
TRUEnever evaluated
FALSEevaluated 1840 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1840
295 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_NOT_LOADED);-
296 return 0;
never executed: return 0;
0
297 }-
298 initialised = ((ctx->dynamic_dso == NULL) ? 0 : 1);
(ctx->dynamic_... ((void *)0) )Description
TRUEevaluated 1840 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-1840
299 /* All our control commands require the ENGINE to be uninitialised */-
300 if (initialised) {
initialisedDescription
TRUEnever evaluated
FALSEevaluated 1840 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1840
301 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_ALREADY_LOADED);-
302 return 0;
never executed: return 0;
0
303 }-
304 switch (cmd) {-
305 case DYNAMIC_CMD_SO_PATH:
never executed: case 200:
0
306 /* a NULL 'p' or a string of zero-length is the same thing */-
307 if (p && (strlen((const char *)p) < 1))
pDescription
TRUEnever evaluated
FALSEnever evaluated
(strlen((const char *)p) < 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
308 p = NULL;
never executed: p = ((void *)0) ;
0
309 OPENSSL_free(ctx->DYNAMIC_LIBNAME);-
310 if (p)
pDescription
TRUEnever evaluated
FALSEnever evaluated
0
311 ctx->DYNAMIC_LIBNAME = OPENSSL_strdup(p);
never executed: ctx->DYNAMIC_LIBNAME = CRYPTO_strdup(p, __FILE__, 311);
0
312 else-
313 ctx->DYNAMIC_LIBNAME = NULL;
never executed: ctx->DYNAMIC_LIBNAME = ((void *)0) ;
0
314 return (ctx->DYNAMIC_LIBNAME ? 1 : 0);
never executed: return (ctx->DYNAMIC_LIBNAME ? 1 : 0);
ctx->DYNAMIC_LIBNAMEDescription
TRUEnever evaluated
FALSEnever evaluated
0
315 case DYNAMIC_CMD_NO_VCHECK:
never executed: case (200 + 1):
0
316 ctx->no_vcheck = ((i == 0) ? 0 : 1);
(i == 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
317 return 1;
never executed: return 1;
0
318 case DYNAMIC_CMD_ID:
executed 368 times by 1 test: case (200 + 2):
Executed by:
  • libcrypto.so.1.1
368
319 /* a NULL 'p' or a string of zero-length is the same thing */-
320 if (p && (strlen((const char *)p) < 1))
pDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
(strlen((const char *)p) < 1)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
321 p = NULL;
never executed: p = ((void *)0) ;
0
322 OPENSSL_free(ctx->engine_id);-
323 if (p)
pDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
324 ctx->engine_id = OPENSSL_strdup(p);
executed 368 times by 1 test: ctx->engine_id = CRYPTO_strdup(p, __FILE__, 324);
Executed by:
  • libcrypto.so.1.1
368
325 else-
326 ctx->engine_id = NULL;
never executed: ctx->engine_id = ((void *)0) ;
0
327 return (ctx->engine_id ? 1 : 0);
executed 368 times by 1 test: return (ctx->engine_id ? 1 : 0);
Executed by:
  • libcrypto.so.1.1
ctx->engine_idDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
328 case DYNAMIC_CMD_LIST_ADD:
executed 368 times by 1 test: case (200 + 3):
Executed by:
  • libcrypto.so.1.1
368
329 if ((i < 0) || (i > 2)) {
(i < 0)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
(i > 2)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
330 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_INVALID_ARGUMENT);-
331 return 0;
never executed: return 0;
0
332 }-
333 ctx->list_add_value = (int)i;-
334 return 1;
executed 368 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
368
335 case DYNAMIC_CMD_LOAD:
executed 368 times by 1 test: case (200 + 6):
Executed by:
  • libcrypto.so.1.1
368
336 return dynamic_load(e, ctx);
executed 368 times by 1 test: return dynamic_load(e, ctx);
Executed by:
  • libcrypto.so.1.1
368
337 case DYNAMIC_CMD_DIR_LOAD:
executed 368 times by 1 test: case (200 + 4):
Executed by:
  • libcrypto.so.1.1
368
338 if ((i < 0) || (i > 2)) {
(i < 0)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
(i > 2)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
339 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_INVALID_ARGUMENT);-
340 return 0;
never executed: return 0;
0
341 }-
342 ctx->dir_load = (int)i;-
343 return 1;
executed 368 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
368
344 case DYNAMIC_CMD_DIR_ADD:
executed 368 times by 1 test: case (200 + 5):
Executed by:
  • libcrypto.so.1.1
368
345 /* a NULL 'p' or a string of zero-length is the same thing */-
346 if (!p || (strlen((const char *)p) < 1)) {
!pDescription
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
(strlen((const char *)p) < 1)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
347 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_INVALID_ARGUMENT);-
348 return 0;
never executed: return 0;
0
349 }-
350 {-
351 char *tmp_str = OPENSSL_strdup(p);-
352 if (tmp_str == NULL) {
tmp_str == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
353 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ERR_R_MALLOC_FAILURE);-
354 return 0;
never executed: return 0;
0
355 }-
356 if (!sk_OPENSSL_STRING_push(ctx->dirs, tmp_str)) {
!sk_OPENSSL_ST...dirs, tmp_str)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
357 OPENSSL_free(tmp_str);-
358 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ERR_R_MALLOC_FAILURE);-
359 return 0;
never executed: return 0;
0
360 }-
361 }-
362 return 1;
executed 368 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
368
363 default:
never executed: default:
0
364 break;
never executed: break;
0
365 }-
366 ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED);-
367 return 0;
never executed: return 0;
0
368}-
369-
370static int int_load(dynamic_data_ctx *ctx)-
371{-
372 int num, loop;-
373 /* Unless told not to, try a direct load */-
374 if ((ctx->dir_load != 2) && (DSO_load(ctx->dynamic_dso,
(ctx->dir_load != 2)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
(DSO_load(ctx-...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0-368
375 ctx->DYNAMIC_LIBNAME, NULL,
(DSO_load(ctx-...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
376 0)) != NULL)
(DSO_load(ctx-...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
377 return 1;
never executed: return 1;
0
378 /* If we're not allowed to use 'dirs' or we have none, fail */-
379 if (!ctx->dir_load || (num = sk_OPENSSL_STRING_num(ctx->dirs)) < 1)
!ctx->dir_loadDescription
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
(num = sk_OPEN...tx->dirs)) < 1Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
380 return 0;
never executed: return 0;
0
381 for (loop = 0; loop < num; loop++) {
loop < numDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
382 const char *s = sk_OPENSSL_STRING_value(ctx->dirs, loop);-
383 char *merge = DSO_merge(ctx->dynamic_dso, ctx->DYNAMIC_LIBNAME, s);-
384 if (!merge)
!mergeDescription
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
385 return 0;
never executed: return 0;
0
386 if (DSO_load(ctx->dynamic_dso, merge, NULL, 0)) {
DSO_load(ctx->...void *)0) , 0)Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
387 /* Found what we're looking for */-
388 OPENSSL_free(merge);-
389 return 1;
executed 368 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
368
390 }-
391 OPENSSL_free(merge);-
392 }
never executed: end of block
0
393 return 0;
never executed: return 0;
0
394}-
395-
396static int dynamic_load(ENGINE *e, dynamic_data_ctx *ctx)-
397{-
398 ENGINE cpy;-
399 dynamic_fns fns;-
400-
401 if (ctx->dynamic_dso == NULL)
ctx->dynamic_d...== ((void *)0)Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
402 ctx->dynamic_dso = DSO_new();
executed 368 times by 1 test: ctx->dynamic_dso = DSO_new();
Executed by:
  • libcrypto.so.1.1
368
403 if (ctx->dynamic_dso == NULL)
ctx->dynamic_d...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
404 return 0;
never executed: return 0;
0
405 if (!ctx->DYNAMIC_LIBNAME) {
!ctx->DYNAMIC_LIBNAMEDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
406 if (!ctx->engine_id)
!ctx->engine_idDescription
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
407 return 0;
never executed: return 0;
0
408 DSO_ctrl(ctx->dynamic_dso, DSO_CTRL_SET_FLAGS,-
409 DSO_FLAG_NAME_TRANSLATION_EXT_ONLY, NULL);-
410 ctx->DYNAMIC_LIBNAME =-
411 DSO_convert_filename(ctx->dynamic_dso, ctx->engine_id);-
412 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
413 if (!int_load(ctx)) {
!int_load(ctx)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
414 ENGINEerr(ENGINE_F_DYNAMIC_LOAD, ENGINE_R_DSO_NOT_FOUND);-
415 DSO_free(ctx->dynamic_dso);-
416 ctx->dynamic_dso = NULL;-
417 return 0;
never executed: return 0;
0
418 }-
419 /* We have to find a bind function otherwise it'll always end badly */-
420 if (!
! (ctx->bind_e...->DYNAMIC_F2))Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
421 (ctx->bind_engine =
! (ctx->bind_e...->DYNAMIC_F2))Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
422 (dynamic_bind_engine) DSO_bind_func(ctx->dynamic_dso,
! (ctx->bind_e...->DYNAMIC_F2))Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
423 ctx->DYNAMIC_F2))) {
! (ctx->bind_e...->DYNAMIC_F2))Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
424 ctx->bind_engine = NULL;-
425 DSO_free(ctx->dynamic_dso);-
426 ctx->dynamic_dso = NULL;-
427 ENGINEerr(ENGINE_F_DYNAMIC_LOAD, ENGINE_R_DSO_FAILURE);-
428 return 0;
never executed: return 0;
0
429 }-
430 /* Do we perform version checking? */-
431 if (!ctx->no_vcheck) {
!ctx->no_vcheckDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
432 unsigned long vcheck_res = 0;-
433 /*-
434 * Now we try to find a version checking function and decide how to-
435 * cope with failure if/when it fails.-
436 */-
437 ctx->v_check =-
438 (dynamic_v_check_fn) DSO_bind_func(ctx->dynamic_dso,-
439 ctx->DYNAMIC_F1);-
440 if (ctx->v_check)
ctx->v_checkDescription
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
441 vcheck_res = ctx->v_check(OSSL_DYNAMIC_VERSION);
executed 368 times by 1 test: vcheck_res = ctx->v_check((unsigned long)0x00030000);
Executed by:
  • libcrypto.so.1.1
368
442 /*-
443 * We fail if the version checker veto'd the load *or* if it is-
444 * deferring to us (by returning its version) and we think it is too-
445 * old.-
446 */-
447 if (vcheck_res < OSSL_DYNAMIC_OLDEST) {
vcheck_res < (...ong)0x00030000Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
448 /* Fail */-
449 ctx->bind_engine = NULL;-
450 ctx->v_check = NULL;-
451 DSO_free(ctx->dynamic_dso);-
452 ctx->dynamic_dso = NULL;-
453 ENGINEerr(ENGINE_F_DYNAMIC_LOAD,-
454 ENGINE_R_VERSION_INCOMPATIBILITY);-
455 return 0;
never executed: return 0;
0
456 }-
457 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
458 /*-
459 * First binary copy the ENGINE structure so that we can roll back if the-
460 * hand-over fails-
461 */-
462 memcpy(&cpy, e, sizeof(ENGINE));-
463 /*-
464 * Provide the ERR, "ex_data", memory, and locking callbacks so the-
465 * loaded library uses our state rather than its own. FIXME: As noted in-
466 * engine.h, much of this would be simplified if each area of code-
467 * provided its own "summary" structure of all related callbacks. It-
468 * would also increase opaqueness.-
469 */-
470 fns.static_state = ENGINE_get_static_state();-
471 CRYPTO_get_mem_functions(&fns.mem_fns.malloc_fn, &fns.mem_fns.realloc_fn,-
472 &fns.mem_fns.free_fn);-
473 /*-
474 * Now that we've loaded the dynamic engine, make sure no "dynamic"-
475 * ENGINE elements will show through.-
476 */-
477 engine_set_all_null(e);-
478-
479 /* Try to bind the ENGINE onto our own ENGINE structure */-
480 if (!ctx->bind_engine(e, ctx->engine_id, &fns)) {
!ctx->bind_eng...gine_id, &fns)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
481 ctx->bind_engine = NULL;-
482 ctx->v_check = NULL;-
483 DSO_free(ctx->dynamic_dso);-
484 ctx->dynamic_dso = NULL;-
485 ENGINEerr(ENGINE_F_DYNAMIC_LOAD, ENGINE_R_INIT_FAILED);-
486 /* Copy the original ENGINE structure back */-
487 memcpy(e, &cpy, sizeof(ENGINE));-
488 return 0;
never executed: return 0;
0
489 }-
490 /* Do we try to add this ENGINE to the internal list too? */-
491 if (ctx->list_add_value > 0) {
ctx->list_add_value > 0Description
TRUEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-368
492 if (!ENGINE_add(e)) {
!ENGINE_add(e)Description
TRUEnever evaluated
FALSEevaluated 368 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-368
493 /* Do we tolerate this or fail? */-
494 if (ctx->list_add_value > 1) {
ctx->list_add_value > 1Description
TRUEnever evaluated
FALSEnever evaluated
0
495 /*-
496 * Fail - NB: By this time, it's too late to rollback, and-
497 * trying to do so allows the bind_engine() code to have-
498 * created leaks. We just have to fail where we are, after-
499 * the ENGINE has changed.-
500 */-
501 ENGINEerr(ENGINE_F_DYNAMIC_LOAD,-
502 ENGINE_R_CONFLICTING_ENGINE_ID);-
503 return 0;
never executed: return 0;
0
504 }-
505 /* Tolerate */-
506 ERR_clear_error();-
507 }
never executed: end of block
0
508 }
executed 368 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
368
509 return 1;
executed 368 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
368
510}-
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