static OSSL_STORE_INFO *file_load(OSSL_STORE_LOADER_CTX *ctx,
const UI_METHOD *ui_method, void *ui_data)
{
OSSL_STORE_INFO *result = NULL;
ctx->errcnt = 0;
ERR_clear_error();
if (ctx->type == is_dir) {
do {
char *newname = NULL;
if (ctx->_.dir.last_entry == NULL) {
if (!ctx->_.dir.end_reached) {
char errbuf[256];
assert(ctx->_.dir.last_errno != 0);
errno = ctx->_.dir.last_errno;
ctx->errcnt++;
openssl_strerror_r(errno, errbuf, sizeof(errbuf));
OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD, ERR_R_SYS_LIB);
ERR_add_error_data(1, errbuf);
}
return NULL;
}
if (ctx->_.dir.last_entry[0] != '.'
&& file_name_check(ctx, ctx->_.dir.last_entry)
&& !file_name_to_uri(ctx, ctx->_.dir.last_entry, &newname))
return NULL;
/*
* On the first call (with a NULL context), OPENSSL_DIR_read()
* cares about the second argument. On the following calls, it
* only cares that it isn't NULL. Therefore, we can safely give
* it our URI here.
*/
ctx->_.dir.last_entry = OPENSSL_DIR_read(&ctx->_.dir.ctx,
ctx->_.dir.uri);
ctx->_.dir.last_errno = errno;
if (ctx->_.dir.last_entry == NULL && ctx->_.dir.last_errno == 0)
ctx->_.dir.end_reached = 1;
if (newname != NULL
&& (result = OSSL_STORE_INFO_new_NAME(newname)) == NULL) {
OPENSSL_free(newname);
OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD, ERR_R_OSSL_STORE_LIB);
return NULL;
}
} while (result == NULL && !file_eof(ctx));
} else {
int matchcount = -1;
again:
result = file_load_try_repeat(ctx, ui_method, ui_data);
if (result != NULL)
return result;
if (file_eof(ctx))
return NULL;
do {
char *pem_name = NULL; /* PEM record name */
char *pem_header = NULL; /* PEM record header */
unsigned char *data = NULL; /* DER encoded data */
long len = 0; /* DER encoded data length */
matchcount = -1;
if (ctx->type == is_pem) {
if (!file_read_pem(ctx->_.file.file, &pem_name, &pem_header,
&data, &len, ui_method, ui_data,
(ctx->flags & FILE_FLAG_SECMEM) != 0)) {
ctx->errcnt++;
goto endloop;
}
} else {
if (!file_read_asn1(ctx->_.file.file, &data, &len)) {
ctx->errcnt++;
goto endloop;
}
}
result = file_load_try_decode(ctx, pem_name, pem_header, data, len,
ui_method, ui_data, &matchcount);
if (result != NULL)
goto endloop;
/*
* If a PEM name matches more than one handler, the handlers are
* badly coded.
*/
if (!ossl_assert(pem_name == NULL || matchcount <= 1)) {
ctx->errcnt++;
goto endloop;
}
if (matchcount > 1) {
OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD,
OSSL_STORE_R_AMBIGUOUS_CONTENT_TYPE);
} else if (matchcount == 1) {
/*
* If there are other errors on the stack, they already show
* what the problem is.
*/
if (ERR_peek_error() == 0) {
OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD,
OSSL_STORE_R_UNSUPPORTED_CONTENT_TYPE);
if (pem_name != NULL)
ERR_add_error_data(3, "PEM type is '", pem_name, "'");
}
}
if (matchcount > 0)
ctx->errcnt++;
endloop:
pem_free_flag(pem_name, (ctx->flags & FILE_FLAG_SECMEM) != 0, 0);
pem_free_flag(pem_header, (ctx->flags & FILE_FLAG_SECMEM) != 0, 0);
pem_free_flag(data, (ctx->flags & FILE_FLAG_SECMEM) != 0, len);
} while (matchcount == 0 && !file_eof(ctx) && !file_error(ctx));
/* We bail out on ambiguity */
if (matchcount > 1)
return NULL;
if (result != NULL
&& ctx->expected_type != 0
&& ctx->expected_type != OSSL_STORE_INFO_get_type(result)) {
OSSL_STORE_INFO_free(result);
goto again;
}
}
return result;
}
static OSSL_STORE_INFO *file_load_try_decode(OSSL_STORE_LOADER_CTX *ctx,
const char *pem_name,
const char *pem_header,
unsigned char *data, size_t len,
const UI_METHOD *ui_method,
void *ui_data, int *matchcount)
{
OSSL_STORE_INFO *result = NULL;
BUF_MEM *new_mem = NULL;
char *new_pem_name = NULL;
int t = 0;
again:
{
size_t i = 0;
void *handler_ctx = NULL;
const FILE_HANDLER **matching_handlers =
OPENSSL_zalloc(sizeof(*matching_handlers)
* OSSL_NELEM(file_handlers));
if (matching_handlers == NULL) {
OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD_TRY_DECODE,
ERR_R_MALLOC_FAILURE);
goto err;
}
*matchcount = 0;
for (i = 0; i < OSSL_NELEM(file_handlers); i++) {
const FILE_HANDLER *handler = file_handlers[i];
int try_matchcount = 0;
void *tmp_handler_ctx = NULL;
OSSL_STORE_INFO *tmp_result =
handler->try_decode(pem_name, pem_header, data, len,
&tmp_handler_ctx, &try_matchcount,
ui_method, ui_data);
if (try_matchcount > 0) {
matching_handlers[*matchcount] = handler;
if (handler_ctx)
handler->destroy_ctx(&handler_ctx);
handler_ctx = tmp_handler_ctx;
if ((*matchcount += try_matchcount) > 1) {
/* more than one match => ambiguous, kill any result */
OSSL_STORE_INFO_free(result);
OSSL_STORE_INFO_free(tmp_result);
if (handler->destroy_ctx != NULL)
handler->destroy_ctx(&handler_ctx);
handler_ctx = NULL;
tmp_result = NULL;
result = NULL;
}
if (result == NULL)
result = tmp_result;
}
}
if (*matchcount == 1 && matching_handlers[0]->repeatable) {
ctx->_.file.last_handler = matching_handlers[0];
ctx->_.file.last_handler_ctx = handler_ctx;
}
OPENSSL_free(matching_handlers);
}
err:
OPENSSL_free(new_pem_name);
BUF_MEM_free(new_mem);
if (result != NULL
&& (t = OSSL_STORE_INFO_get_type(result)) == OSSL_STORE_INFO_EMBEDDED) {
pem_name = new_pem_name =
ossl_store_info_get0_EMBEDDED_pem_name(result);
new_mem = ossl_store_info_get0_EMBEDDED_buffer(result);
data = (unsigned char *)new_mem->data;
len = new_mem->length;
OPENSSL_free(result);
result = NULL;
goto again;
}
if (result != NULL)
ERR_clear_error();
return result;
}
static int process(const char *uri, const UI_METHOD *uimeth, PW_CB_DATA *uidata,
int text, int noout, int recursive, int indent, BIO *out)
{
OSSL_STORE_CTX *store_ctx = NULL;
int ret = 1, items = 0;
if ((store_ctx = OSSL_STORE_open(uri, uimeth, uidata, NULL, NULL))
== NULL) {
BIO_printf(bio_err, "Couldn't open file or uri %s\n", uri);
ERR_print_errors(bio_err);
return ret;
}
/* From here on, we count errors, and we'll return the count at the end */
ret = 0;
for (;;) {
OSSL_STORE_INFO *info = OSSL_STORE_load(store_ctx);
int type = info == NULL ? 0 : OSSL_STORE_INFO_get_type(info);
const char *infostr =
info == NULL ? NULL : OSSL_STORE_INFO_type_string(type);
if (info == NULL) {
if (OSSL_STORE_eof(store_ctx))
break;
if (OSSL_STORE_error(store_ctx)) {
if (recursive)
ERR_clear_error();
else
ERR_print_errors(bio_err);
ret++;
continue;
}
BIO_printf(bio_err,
"ERROR: OSSL_STORE_load() returned NULL without "
"eof or error indications\n");
BIO_printf(bio_err, " This is an error in the loader\n");
ERR_print_errors(bio_err);
ret++;
break;
}
if (type == OSSL_STORE_INFO_NAME) {
const char *name = OSSL_STORE_INFO_get0_NAME(info);
const char *desc = OSSL_STORE_INFO_get0_NAME_description(info);
indent_printf(indent, bio_out, "%d: %s: %s\n", items, infostr,
name);
if (desc != NULL)
indent_printf(indent, bio_out, "%s\n", desc);
} else {
indent_printf(indent, bio_out, "%d: %s\n", items, infostr);
}
/*
* Unfortunately, PEM_X509_INFO_write_bio() is sorely lacking in
* functionality, so we must figure out how exactly to write things
* ourselves...
*/
switch (type) {
case OSSL_STORE_INFO_NAME:
if (recursive) {
const char *suburi = OSSL_STORE_INFO_get0_NAME(info);
ret += process(suburi, uimeth, uidata, text, noout, recursive,
indent + 2, out);
}
break;
case OSSL_STORE_INFO_PARAMS:
if (text)
EVP_PKEY_print_params(out, OSSL_STORE_INFO_get0_PARAMS(info),
0, NULL);
if (!noout)
PEM_write_bio_Parameters(out,
OSSL_STORE_INFO_get0_PARAMS(info));
break;
case OSSL_STORE_INFO_PKEY:
if (text)
EVP_PKEY_print_private(out, OSSL_STORE_INFO_get0_PKEY(info),
0, NULL);
if (!noout)
PEM_write_bio_PrivateKey(out, OSSL_STORE_INFO_get0_PKEY(info),
NULL, NULL, 0, NULL, NULL);
break;
case OSSL_STORE_INFO_CERT:
if (text)
X509_print(out, OSSL_STORE_INFO_get0_CERT(info));
if (!noout)
PEM_write_bio_X509(out, OSSL_STORE_INFO_get0_CERT(info));
break;
case OSSL_STORE_INFO_CRL:
if (text)
X509_CRL_print(out, OSSL_STORE_INFO_get0_CRL(info));
if (!noout)
PEM_write_bio_X509_CRL(out, OSSL_STORE_INFO_get0_CRL(info));
break;
default:
BIO_printf(bio_err, "!!! Unknown code\n");
ret++;
break;
}
items++;
OSSL_STORE_INFO_free(info);
}
indent_printf(indent, out, "Total found: %d\n", items);
if (!OSSL_STORE_close(store_ctx)) {
ERR_print_errors(bio_err);
ret++;
}
return ret;
}
