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Hakase
2019-10-17 23:54:38 +09:00
parent 41a23ae6f6
commit ee84d0dd84
1357 changed files with 41111 additions and 9603 deletions
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crypto/evp/evp_fetch.c
+98 -22
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@@ -8,7 +8,7 @@
*/
#include <stddef.h>
#include <openssl/ossl_typ.h>
#include <openssl/types.h>
#include <openssl/evp.h>
#include <openssl/core.h>
#include "internal/cryptlib.h"
@@ -17,8 +17,10 @@
#include "internal/core.h"
#include "internal/provider.h"
#include "internal/namemap.h"
#include "internal/evp_int.h" /* evp_locl.h needs it */
#include "evp_locl.h"
#include "crypto/evp.h" /* evp_local.h needs it */
#include "evp_local.h"
#define NAME_SEPARATOR ':'
static void default_method_store_free(void *vstore)
{
@@ -42,7 +44,7 @@ struct method_data_st {
OSSL_METHOD_CONSTRUCT_METHOD *mcm;
int operation_id; /* For get_method_from_store() */
int name_id; /* For get_method_from_store() */
const char *name; /* For get_method_from_store() */
const char *names; /* For get_method_from_store() */
const char *propquery; /* For get_method_from_store() */
void *(*method_from_dispatch)(int name_id, const OSSL_DISPATCH *,
OSSL_PROVIDER *, void *);
@@ -51,6 +53,69 @@ struct method_data_st {
void (*destruct_method)(void *method);
};
static int add_names_to_namemap(OSSL_NAMEMAP *namemap,
const char *names)
{
const char *p, *q;
size_t l;
int id = 0;
/* Check that we have a namemap and that there is at least one name */
if (namemap == NULL) {
ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
/*
* Check that no name is an empty string, and that all names have at
* most one numeric identity together.
*/
for (p = names; *p != '\0'; p = (q == NULL ? p + l : q + 1)) {
int this_id;
if ((q = strchr(p, NAME_SEPARATOR)) == NULL)
l = strlen(p); /* offset to \0 */
else
l = q - p; /* offset to the next separator */
this_id = ossl_namemap_name2num_n(namemap, p, l);
if (*p == '\0' || *p == NAME_SEPARATOR) {
ERR_raise(ERR_LIB_EVP, EVP_R_BAD_ALGORITHM_NAME);
return 0;
}
if (id == 0)
id = this_id;
else if (this_id != 0 && this_id != id) {
ERR_raise_data(ERR_LIB_EVP, EVP_R_CONFLICTING_ALGORITHM_NAME,
"\"%.*s\" has an existing different identity %d (from \"%s\")",
l, p, this_id, names);
return 0;
}
}
/* Now that we have checked, register all names */
for (p = names; *p != '\0'; p = (q == NULL ? p + l : q + 1)) {
int this_id;
if ((q = strchr(p, NAME_SEPARATOR)) == NULL)
l = strlen(p); /* offset to \0 */
else
l = q - p; /* offset to the next separator */
this_id = ossl_namemap_add_n(namemap, id, p, l);
if (id == 0)
id = this_id;
else if (this_id != id) {
ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR,
"Got id %d when expecting %d", this_id, id);
return 0;
}
}
return id;
}
/*
* Generic routines to fetch / create EVP methods with ossl_method_construct()
*/
@@ -105,10 +170,13 @@ static void *get_method_from_store(OPENSSL_CTX *libctx, void *store,
*/
if ((name_id = methdata->name_id) == 0) {
OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx);
const char *names = methdata->names;
const char *q = strchr(names, NAME_SEPARATOR);
size_t l = (q == NULL ? strlen(names) : (size_t)(q - names));
if (namemap == 0)
return NULL;
name_id = ossl_namemap_name2num(namemap, methdata->name);
name_id = ossl_namemap_name2num_n(namemap, names, l);
}
if (name_id == 0
@@ -131,21 +199,30 @@ static void *get_method_from_store(OPENSSL_CTX *libctx, void *store,
static int put_method_in_store(OPENSSL_CTX *libctx, void *store,
void *method, const OSSL_PROVIDER *prov,
int operation_id, const char *name,
int operation_id, const char *names,
const char *propdef, void *data)
{
struct method_data_st *methdata = data;
OSSL_NAMEMAP *namemap;
int name_id;
uint32_t meth_id;
size_t l = 0;
/*
* put_method_in_store() is only called with a method that was
* successfully created by construct_method() below, which means
* the name should already be stored in the namemap, so just use it.
* that all the names should already be stored in the namemap with
* the same numeric identity, so just use the first to get that
* identity.
*/
if (names != NULL) {
const char *q = strchr(names, NAME_SEPARATOR);
l = (q == NULL ? strlen(names) : (size_t)(q - names));
}
if ((namemap = ossl_namemap_stored(libctx)) == NULL
|| (name_id = ossl_namemap_name2num(namemap, name)) == 0
|| (name_id = ossl_namemap_name2num_n(namemap, names, l)) == 0
|| (meth_id = method_id(operation_id, name_id)) == 0)
return 0;
@@ -162,7 +239,7 @@ static int put_method_in_store(OPENSSL_CTX *libctx, void *store,
* The core fetching functionality passes the name of the implementation.
* This function is responsible to getting an identity number for it.
*/
static void *construct_method(const char *name, const OSSL_DISPATCH *fns,
static void *construct_method(const char *names, const OSSL_DISPATCH *fns,
OSSL_PROVIDER *prov, void *data)
{
/*
@@ -170,17 +247,14 @@ static void *construct_method(const char *name, const OSSL_DISPATCH *fns,
* NULL, so it's safe to say that of all the spots to create a new
* namemap entry, this is it. Should the name already exist there, we
* know that ossl_namemap_add() will return its corresponding number.
*
* TODO(3.0): If this function gets an array of names instead of just
* one, we need to check through all the names to see if at least one
* of them has an associated number, and use that. If several names
* have associated numbers that differ from each other, it's an error.
*/
struct method_data_st *methdata = data;
OPENSSL_CTX *libctx = ossl_provider_library_context(prov);
OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx);
int name_id = ossl_namemap_add(namemap, 0, name);
int name_id = add_names_to_namemap(namemap, names);
if (name_id == 0)
return NULL;
return methdata->method_from_dispatch(name_id, fns, prov,
methdata->method_data);
}
@@ -255,7 +329,7 @@ static void *inner_generic_fetch(OPENSSL_CTX *libctx, int operation_id,
mcmdata.libctx = libctx;
mcmdata.operation_id = operation_id;
mcmdata.name_id = name_id;
mcmdata.name = name;
mcmdata.names = name;
mcmdata.propquery = properties;
mcmdata.method_from_dispatch = new_method;
mcmdata.destruct_method = free_method;
@@ -337,6 +411,7 @@ struct do_all_data_st {
void *user_arg;
void *(*new_method)(const int name_id, const OSSL_DISPATCH *fns,
OSSL_PROVIDER *prov, void *method_data);
void *method_data;
void (*free_method)(void *);
};
@@ -346,12 +421,12 @@ static void do_one(OSSL_PROVIDER *provider, const OSSL_ALGORITHM *algo,
struct do_all_data_st *data = vdata;
OPENSSL_CTX *libctx = ossl_provider_library_context(provider);
OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx);
int name_id = ossl_namemap_add(namemap, 0, algo->algorithm_name);
int name_id = add_names_to_namemap(namemap, algo->algorithm_names);
void *method = NULL;
if (name_id != 0)
method = data->new_method(name_id, algo->implementation, provider,
NULL);
data->method_data);
if (method != NULL) {
data->user_fn(method, data->user_arg);
@@ -372,10 +447,11 @@ void evp_generic_do_all(OPENSSL_CTX *libctx, int operation_id,
struct do_all_data_st data;
data.new_method = new_method;
data.method_data = method_data;
data.free_method = free_method;
data.user_fn = user_fn;
data.user_arg = user_arg;
ossl_algorithm_do_all(libctx, operation_id, method_data, do_one, &data);
ossl_algorithm_do_all(libctx, operation_id, NULL, do_one, &data);
}
const char *evp_first_name(OSSL_PROVIDER *prov, int name_id)
@@ -394,9 +470,9 @@ int evp_is_a(OSSL_PROVIDER *prov, int number, const char *name)
return ossl_namemap_name2num(namemap, name) == number;
}
void evp_doall_names(OSSL_PROVIDER *prov, int number,
void (*fn)(const char *name, void *data),
void *data)
void evp_names_do_all(OSSL_PROVIDER *prov, int number,
void (*fn)(const char *name, void *data),
void *data)
{
OPENSSL_CTX *libctx = ossl_provider_library_context(prov);
OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx);