zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/engine/eng_dyn.c b/ap/lib/libssl/openssl-1.1.1o/crypto/engine/eng_dyn.c
new file mode 100644
index 0000000..27d7b89
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/engine/eng_dyn.c
@@ -0,0 +1,532 @@
+/*
+ * Copyright 2001-2022 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "eng_local.h"
+#include "internal/dso.h"
+#include <openssl/crypto.h>
+
+/*
+ * Shared libraries implementing ENGINEs for use by the "dynamic" ENGINE
+ * loader should implement the hook-up functions with the following
+ * prototypes.
+ */
+
+/* Our ENGINE handlers */
+static int dynamic_init(ENGINE *e);
+static int dynamic_finish(ENGINE *e);
+static int dynamic_ctrl(ENGINE *e, int cmd, long i, void *p,
+ void (*f) (void));
+/* Predeclare our context type */
+typedef struct st_dynamic_data_ctx dynamic_data_ctx;
+/* The implementation for the important control command */
+static int dynamic_load(ENGINE *e, dynamic_data_ctx *ctx);
+
+#define DYNAMIC_CMD_SO_PATH ENGINE_CMD_BASE
+#define DYNAMIC_CMD_NO_VCHECK (ENGINE_CMD_BASE + 1)
+#define DYNAMIC_CMD_ID (ENGINE_CMD_BASE + 2)
+#define DYNAMIC_CMD_LIST_ADD (ENGINE_CMD_BASE + 3)
+#define DYNAMIC_CMD_DIR_LOAD (ENGINE_CMD_BASE + 4)
+#define DYNAMIC_CMD_DIR_ADD (ENGINE_CMD_BASE + 5)
+#define DYNAMIC_CMD_LOAD (ENGINE_CMD_BASE + 6)
+
+/* The constants used when creating the ENGINE */
+static const char *engine_dynamic_id = "dynamic";
+static const char *engine_dynamic_name = "Dynamic engine loading support";
+static const ENGINE_CMD_DEFN dynamic_cmd_defns[] = {
+ {DYNAMIC_CMD_SO_PATH,
+ "SO_PATH",
+ "Specifies the path to the new ENGINE shared library",
+ ENGINE_CMD_FLAG_STRING},
+ {DYNAMIC_CMD_NO_VCHECK,
+ "NO_VCHECK",
+ "Specifies to continue even if version checking fails (boolean)",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {DYNAMIC_CMD_ID,
+ "ID",
+ "Specifies an ENGINE id name for loading",
+ ENGINE_CMD_FLAG_STRING},
+ {DYNAMIC_CMD_LIST_ADD,
+ "LIST_ADD",
+ "Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {DYNAMIC_CMD_DIR_LOAD,
+ "DIR_LOAD",
+ "Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {DYNAMIC_CMD_DIR_ADD,
+ "DIR_ADD",
+ "Adds a directory from which ENGINEs can be loaded",
+ ENGINE_CMD_FLAG_STRING},
+ {DYNAMIC_CMD_LOAD,
+ "LOAD",
+ "Load up the ENGINE specified by other settings",
+ ENGINE_CMD_FLAG_NO_INPUT},
+ {0, NULL, NULL, 0}
+};
+
+/*
+ * Loading code stores state inside the ENGINE structure via the "ex_data"
+ * element. We load all our state into a single structure and use that as a
+ * single context in the "ex_data" stack.
+ */
+struct st_dynamic_data_ctx {
+ /* The DSO object we load that supplies the ENGINE code */
+ DSO *dynamic_dso;
+ /*
+ * The function pointer to the version checking shared library function
+ */
+ dynamic_v_check_fn v_check;
+ /*
+ * The function pointer to the engine-binding shared library function
+ */
+ dynamic_bind_engine bind_engine;
+ /* The default name/path for loading the shared library */
+ char *DYNAMIC_LIBNAME;
+ /* Whether to continue loading on a version check failure */
+ int no_vcheck;
+ /* If non-NULL, stipulates the 'id' of the ENGINE to be loaded */
+ char *engine_id;
+ /*
+ * If non-zero, a successfully loaded ENGINE should be added to the
+ * internal ENGINE list. If 2, the add must succeed or the entire load
+ * should fail.
+ */
+ int list_add_value;
+ /* The symbol name for the version checking function */
+ const char *DYNAMIC_F1;
+ /* The symbol name for the "initialise ENGINE structure" function */
+ const char *DYNAMIC_F2;
+ /*
+ * Whether to never use 'dirs', use 'dirs' as a fallback, or only use
+ * 'dirs' for loading. Default is to use 'dirs' as a fallback.
+ */
+ int dir_load;
+ /* A stack of directories from which ENGINEs could be loaded */
+ STACK_OF(OPENSSL_STRING) *dirs;
+};
+
+/*
+ * This is the "ex_data" index we obtain and reserve for use with our context
+ * structure.
+ */
+static int dynamic_ex_data_idx = -1;
+
+static void int_free_str(char *s)
+{
+ OPENSSL_free(s);
+}
+
+/*
+ * Because our ex_data element may or may not get allocated depending on
+ * whether a "first-use" occurs before the ENGINE is freed, we have a memory
+ * leak problem to solve. We can't declare a "new" handler for the ex_data as
+ * we don't want a dynamic_data_ctx in *all* ENGINE structures of all types
+ * (this is a bug in the design of CRYPTO_EX_DATA). As such, we just declare
+ * a "free" handler and that will get called if an ENGINE is being destroyed
+ * and there was an ex_data element corresponding to our context type.
+ */
+static void dynamic_data_ctx_free_func(void *parent, void *ptr,
+ CRYPTO_EX_DATA *ad, int idx, long argl,
+ void *argp)
+{
+ if (ptr) {
+ dynamic_data_ctx *ctx = (dynamic_data_ctx *)ptr;
+ DSO_free(ctx->dynamic_dso);
+ OPENSSL_free(ctx->DYNAMIC_LIBNAME);
+ OPENSSL_free(ctx->engine_id);
+ sk_OPENSSL_STRING_pop_free(ctx->dirs, int_free_str);
+ OPENSSL_free(ctx);
+ }
+}
+
+/*
+ * Construct the per-ENGINE context. We create it blindly and then use a lock
+ * to check for a race - if so, all but one of the threads "racing" will have
+ * wasted their time. The alternative involves creating everything inside the
+ * lock which is far worse.
+ */
+static int dynamic_set_data_ctx(ENGINE *e, dynamic_data_ctx **ctx)
+{
+ dynamic_data_ctx *c = OPENSSL_zalloc(sizeof(*c));
+ int ret = 1;
+
+ if (c == NULL) {
+ ENGINEerr(ENGINE_F_DYNAMIC_SET_DATA_CTX, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ c->dirs = sk_OPENSSL_STRING_new_null();
+ if (c->dirs == NULL) {
+ ENGINEerr(ENGINE_F_DYNAMIC_SET_DATA_CTX, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(c);
+ return 0;
+ }
+ c->DYNAMIC_F1 = "v_check";
+ c->DYNAMIC_F2 = "bind_engine";
+ c->dir_load = 1;
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ if ((*ctx = (dynamic_data_ctx *)ENGINE_get_ex_data(e,
+ dynamic_ex_data_idx))
+ == NULL) {
+ /* Good, we're the first */
+ ret = ENGINE_set_ex_data(e, dynamic_ex_data_idx, c);
+ if (ret) {
+ *ctx = c;
+ c = NULL;
+ }
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ /*
+ * If we lost the race to set the context, c is non-NULL and *ctx is the
+ * context of the thread that won.
+ */
+ if (c)
+ sk_OPENSSL_STRING_free(c->dirs);
+ OPENSSL_free(c);
+ return ret;
+}
+
+/*
+ * This function retrieves the context structure from an ENGINE's "ex_data",
+ * or if it doesn't exist yet, sets it up.
+ */
+static dynamic_data_ctx *dynamic_get_data_ctx(ENGINE *e)
+{
+ dynamic_data_ctx *ctx;
+ if (dynamic_ex_data_idx < 0) {
+ /*
+ * Create and register the ENGINE ex_data, and associate our "free"
+ * function with it to ensure any allocated contexts get freed when
+ * an ENGINE goes underground.
+ */
+ int new_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL,
+ dynamic_data_ctx_free_func);
+ if (new_idx == -1) {
+ ENGINEerr(ENGINE_F_DYNAMIC_GET_DATA_CTX, ENGINE_R_NO_INDEX);
+ return NULL;
+ }
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ /* Avoid a race by checking again inside this lock */
+ if (dynamic_ex_data_idx < 0) {
+ /* Good, someone didn't beat us to it */
+ dynamic_ex_data_idx = new_idx;
+ new_idx = -1;
+ }
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ /*
+ * In theory we could "give back" the index here if (new_idx>-1), but
+ * it's not possible and wouldn't gain us much if it were.
+ */
+ }
+ ctx = (dynamic_data_ctx *)ENGINE_get_ex_data(e, dynamic_ex_data_idx);
+ /* Check if the context needs to be created */
+ if ((ctx == NULL) && !dynamic_set_data_ctx(e, &ctx))
+ /* "set_data" will set errors if necessary */
+ return NULL;
+ return ctx;
+}
+
+static ENGINE *engine_dynamic(void)
+{
+ ENGINE *ret = ENGINE_new();
+ if (ret == NULL)
+ return NULL;
+ if (!ENGINE_set_id(ret, engine_dynamic_id) ||
+ !ENGINE_set_name(ret, engine_dynamic_name) ||
+ !ENGINE_set_init_function(ret, dynamic_init) ||
+ !ENGINE_set_finish_function(ret, dynamic_finish) ||
+ !ENGINE_set_ctrl_function(ret, dynamic_ctrl) ||
+ !ENGINE_set_flags(ret, ENGINE_FLAGS_BY_ID_COPY) ||
+ !ENGINE_set_cmd_defns(ret, dynamic_cmd_defns)) {
+ ENGINE_free(ret);
+ return NULL;
+ }
+ return ret;
+}
+
+void engine_load_dynamic_int(void)
+{
+ ENGINE *toadd = engine_dynamic();
+ if (!toadd)
+ return;
+ ENGINE_add(toadd);
+ /*
+ * If the "add" worked, it gets a structural reference. So either way, we
+ * release our just-created reference.
+ */
+ ENGINE_free(toadd);
+ /*
+ * If the "add" didn't work, it was probably a conflict because it was
+ * already added (eg. someone calling ENGINE_load_blah then calling
+ * ENGINE_load_builtin_engines() perhaps).
+ */
+ ERR_clear_error();
+}
+
+static int dynamic_init(ENGINE *e)
+{
+ /*
+ * We always return failure - the "dynamic" engine itself can't be used
+ * for anything.
+ */
+ return 0;
+}
+
+static int dynamic_finish(ENGINE *e)
+{
+ /*
+ * This should never be called on account of "dynamic_init" always
+ * failing.
+ */
+ return 0;
+}
+
+static int dynamic_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
+{
+ dynamic_data_ctx *ctx = dynamic_get_data_ctx(e);
+ int initialised;
+
+ if (!ctx) {
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_NOT_LOADED);
+ return 0;
+ }
+ initialised = ((ctx->dynamic_dso == NULL) ? 0 : 1);
+ /* All our control commands require the ENGINE to be uninitialised */
+ if (initialised) {
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_ALREADY_LOADED);
+ return 0;
+ }
+ switch (cmd) {
+ case DYNAMIC_CMD_SO_PATH:
+ /* a NULL 'p' or a string of zero-length is the same thing */
+ if (p && (strlen((const char *)p) < 1))
+ p = NULL;
+ OPENSSL_free(ctx->DYNAMIC_LIBNAME);
+ if (p)
+ ctx->DYNAMIC_LIBNAME = OPENSSL_strdup(p);
+ else
+ ctx->DYNAMIC_LIBNAME = NULL;
+ return (ctx->DYNAMIC_LIBNAME ? 1 : 0);
+ case DYNAMIC_CMD_NO_VCHECK:
+ ctx->no_vcheck = ((i == 0) ? 0 : 1);
+ return 1;
+ case DYNAMIC_CMD_ID:
+ /* a NULL 'p' or a string of zero-length is the same thing */
+ if (p && (strlen((const char *)p) < 1))
+ p = NULL;
+ OPENSSL_free(ctx->engine_id);
+ if (p)
+ ctx->engine_id = OPENSSL_strdup(p);
+ else
+ ctx->engine_id = NULL;
+ return (ctx->engine_id ? 1 : 0);
+ case DYNAMIC_CMD_LIST_ADD:
+ if ((i < 0) || (i > 2)) {
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_INVALID_ARGUMENT);
+ return 0;
+ }
+ ctx->list_add_value = (int)i;
+ return 1;
+ case DYNAMIC_CMD_LOAD:
+ return dynamic_load(e, ctx);
+ case DYNAMIC_CMD_DIR_LOAD:
+ if ((i < 0) || (i > 2)) {
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_INVALID_ARGUMENT);
+ return 0;
+ }
+ ctx->dir_load = (int)i;
+ return 1;
+ case DYNAMIC_CMD_DIR_ADD:
+ /* a NULL 'p' or a string of zero-length is the same thing */
+ if (!p || (strlen((const char *)p) < 1)) {
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_INVALID_ARGUMENT);
+ return 0;
+ }
+ {
+ char *tmp_str = OPENSSL_strdup(p);
+ if (tmp_str == NULL) {
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ if (!sk_OPENSSL_STRING_push(ctx->dirs, tmp_str)) {
+ OPENSSL_free(tmp_str);
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ }
+ return 1;
+ default:
+ break;
+ }
+ ENGINEerr(ENGINE_F_DYNAMIC_CTRL, ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED);
+ return 0;
+}
+
+static int int_load(dynamic_data_ctx *ctx)
+{
+ int num, loop;
+ /* Unless told not to, try a direct load */
+ if ((ctx->dir_load != 2) && (DSO_load(ctx->dynamic_dso,
+ ctx->DYNAMIC_LIBNAME, NULL,
+ 0)) != NULL)
+ return 1;
+ /* If we're not allowed to use 'dirs' or we have none, fail */
+ if (!ctx->dir_load || (num = sk_OPENSSL_STRING_num(ctx->dirs)) < 1)
+ return 0;
+ for (loop = 0; loop < num; loop++) {
+ const char *s = sk_OPENSSL_STRING_value(ctx->dirs, loop);
+ char *merge = DSO_merge(ctx->dynamic_dso, ctx->DYNAMIC_LIBNAME, s);
+ if (!merge)
+ return 0;
+ if (DSO_load(ctx->dynamic_dso, merge, NULL, 0)) {
+ /* Found what we're looking for */
+ OPENSSL_free(merge);
+ return 1;
+ }
+ OPENSSL_free(merge);
+ }
+ return 0;
+}
+
+/*
+ * Unfortunately the version checker does not distinguish between
+ * engines built for openssl 1.1.x and openssl 3.x, but loading
+ * an engine that is built for openssl 3.x will cause a fatal
+ * error. Detect such engines, since EVP_PKEY_get_base_id is exported
+ * as a function in openssl 3.x, while it is named EVP_PKEY_base_id
+ * in openssl 1.1.x. Therefore we take the presence of that symbol
+ * as an indication that the engine will be incompatible.
+ */
+static int using_libcrypto_3(dynamic_data_ctx *ctx)
+{
+ int ret;
+
+ ERR_set_mark();
+ ret = DSO_bind_func(ctx->dynamic_dso, "EVP_PKEY_get_base_id") != NULL;
+ ERR_pop_to_mark();
+
+ return ret;
+}
+
+static int dynamic_load(ENGINE *e, dynamic_data_ctx *ctx)
+{
+ ENGINE cpy;
+ dynamic_fns fns;
+
+ if (ctx->dynamic_dso == NULL)
+ ctx->dynamic_dso = DSO_new();
+ if (ctx->dynamic_dso == NULL)
+ return 0;
+ if (!ctx->DYNAMIC_LIBNAME) {
+ if (!ctx->engine_id)
+ return 0;
+ DSO_ctrl(ctx->dynamic_dso, DSO_CTRL_SET_FLAGS,
+ DSO_FLAG_NAME_TRANSLATION_EXT_ONLY, NULL);
+ ctx->DYNAMIC_LIBNAME =
+ DSO_convert_filename(ctx->dynamic_dso, ctx->engine_id);
+ }
+ if (!int_load(ctx)) {
+ ENGINEerr(ENGINE_F_DYNAMIC_LOAD, ENGINE_R_DSO_NOT_FOUND);
+ DSO_free(ctx->dynamic_dso);
+ ctx->dynamic_dso = NULL;
+ return 0;
+ }
+ /* We have to find a bind function otherwise it'll always end badly */
+ if (!
+ (ctx->bind_engine =
+ (dynamic_bind_engine) DSO_bind_func(ctx->dynamic_dso,
+ ctx->DYNAMIC_F2))) {
+ ctx->bind_engine = NULL;
+ DSO_free(ctx->dynamic_dso);
+ ctx->dynamic_dso = NULL;
+ ENGINEerr(ENGINE_F_DYNAMIC_LOAD, ENGINE_R_DSO_FAILURE);
+ return 0;
+ }
+ /* Do we perform version checking? */
+ if (!ctx->no_vcheck) {
+ unsigned long vcheck_res = 0;
+ /*
+ * Now we try to find a version checking function and decide how to
+ * cope with failure if/when it fails.
+ */
+ ctx->v_check =
+ (dynamic_v_check_fn) DSO_bind_func(ctx->dynamic_dso,
+ ctx->DYNAMIC_F1);
+ if (ctx->v_check)
+ vcheck_res = ctx->v_check(OSSL_DYNAMIC_VERSION);
+ /*
+ * We fail if the version checker veto'd the load *or* if it is
+ * deferring to us (by returning its version) and we think it is too
+ * old. Also fail if this is engine for openssl 3.x.
+ */
+ if (vcheck_res < OSSL_DYNAMIC_OLDEST || using_libcrypto_3(ctx)) {
+ /* Fail */
+ ctx->bind_engine = NULL;
+ ctx->v_check = NULL;
+ DSO_free(ctx->dynamic_dso);
+ ctx->dynamic_dso = NULL;
+ ENGINEerr(ENGINE_F_DYNAMIC_LOAD,
+ ENGINE_R_VERSION_INCOMPATIBILITY);
+ return 0;
+ }
+ }
+ /*
+ * First binary copy the ENGINE structure so that we can roll back if the
+ * hand-over fails
+ */
+ memcpy(&cpy, e, sizeof(ENGINE));
+ /*
+ * Provide the ERR, "ex_data", memory, and locking callbacks so the
+ * loaded library uses our state rather than its own. FIXME: As noted in
+ * engine.h, much of this would be simplified if each area of code
+ * provided its own "summary" structure of all related callbacks. It
+ * would also increase opaqueness.
+ */
+ fns.static_state = ENGINE_get_static_state();
+ CRYPTO_get_mem_functions(&fns.mem_fns.malloc_fn, &fns.mem_fns.realloc_fn,
+ &fns.mem_fns.free_fn);
+ /*
+ * Now that we've loaded the dynamic engine, make sure no "dynamic"
+ * ENGINE elements will show through.
+ */
+ engine_set_all_null(e);
+
+ /* Try to bind the ENGINE onto our own ENGINE structure */
+ if (!engine_add_dynamic_id(e, (ENGINE_DYNAMIC_ID)ctx->bind_engine, 1)
+ || !ctx->bind_engine(e, ctx->engine_id, &fns)) {
+ engine_remove_dynamic_id(e, 1);
+ ctx->bind_engine = NULL;
+ ctx->v_check = NULL;
+ DSO_free(ctx->dynamic_dso);
+ ctx->dynamic_dso = NULL;
+ ENGINEerr(ENGINE_F_DYNAMIC_LOAD, ENGINE_R_INIT_FAILED);
+ /* Copy the original ENGINE structure back */
+ memcpy(e, &cpy, sizeof(ENGINE));
+ return 0;
+ }
+ /* Do we try to add this ENGINE to the internal list too? */
+ if (ctx->list_add_value > 0) {
+ if (!ENGINE_add(e)) {
+ /* Do we tolerate this or fail? */
+ if (ctx->list_add_value > 1) {
+ /*
+ * Fail - NB: By this time, it's too late to rollback, and
+ * trying to do so allows the bind_engine() code to have
+ * created leaks. We just have to fail where we are, after
+ * the ENGINE has changed.
+ */
+ ENGINEerr(ENGINE_F_DYNAMIC_LOAD,
+ ENGINE_R_CONFLICTING_ENGINE_ID);
+ return 0;
+ }
+ /* Tolerate */
+ ERR_clear_error();
+ }
+ }
+ return 1;
+}