2 * Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
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
14 #include <openssl/bio.h>
15 #include <openssl/dsa.h> /* For d2i_DSAPrivateKey */
16 #include <openssl/err.h>
17 #include <openssl/evp.h>
18 #include <openssl/pem.h>
19 #include <openssl/pkcs12.h> /* For the PKCS8 stuff o.O */
20 #include <openssl/rsa.h> /* For d2i_RSAPrivateKey */
21 #include <openssl/safestack.h>
22 #include <openssl/store.h>
23 #include <openssl/ui.h>
24 #include <openssl/x509.h> /* For the PKCS8 stuff o.O */
25 #include "internal/asn1_int.h"
26 #include "internal/o_dir.h"
27 #include "internal/cryptlib.h"
28 #include "store_locl.h"
36 static char *file_get_pass(const UI_METHOD *ui_method, char *pass,
37 size_t maxsize, const char *prompt_info, void *data)
43 OSSL_STOREerr(OSSL_STORE_F_FILE_GET_PASS, ERR_R_MALLOC_FAILURE);
47 if (ui_method != NULL)
48 UI_set_method(ui, ui_method);
49 UI_add_user_data(ui, data);
51 if ((prompt = UI_construct_prompt(ui, "pass phrase",
52 prompt_info)) == NULL) {
53 OSSL_STOREerr(OSSL_STORE_F_FILE_GET_PASS, ERR_R_MALLOC_FAILURE);
55 } else if (!UI_add_input_string(ui, prompt, UI_INPUT_FLAG_DEFAULT_PWD,
56 pass, 0, maxsize - 1)) {
57 OSSL_STOREerr(OSSL_STORE_F_FILE_GET_PASS, ERR_R_UI_LIB);
60 switch (UI_process(ui)) {
62 OSSL_STOREerr(OSSL_STORE_F_FILE_GET_PASS,
63 OSSL_STORE_R_UI_PROCESS_INTERRUPTED_OR_CANCELLED);
67 OSSL_STOREerr(OSSL_STORE_F_FILE_GET_PASS, ERR_R_UI_LIB);
80 struct pem_pass_data {
81 const UI_METHOD *ui_method;
83 const char *prompt_info;
85 static int file_fill_pem_pass_data(struct pem_pass_data *pass_data,
86 const char *prompt_info,
87 const UI_METHOD *ui_method, void *ui_data)
89 if (pass_data == NULL)
91 pass_data->ui_method = ui_method;
92 pass_data->data = ui_data;
93 pass_data->prompt_info = prompt_info;
96 static int file_get_pem_pass(char *buf, int num, int w, void *data)
98 struct pem_pass_data *pass_data = data;
99 char *pass = file_get_pass(pass_data->ui_method, buf, num,
100 pass_data->prompt_info, pass_data->data);
102 return pass == NULL ? 0 : strlen(pass);
106 * The file scheme handlers
110 * The try_decode function is called to check if the blob of data can
111 * be used by this handler, and if it can, decodes it into a supported
112 * OpenSSL type and returns a OSSL_STORE_INFO with the decoded data.
114 * pem_name: If this blob comes from a PEM file, this holds
115 * the PEM name. If it comes from another type of
116 * file, this is NULL.
117 * pem_header: If this blob comes from a PEM file, this holds
118 * the PEM headers. If it comes from another type of
119 * file, this is NULL.
120 * blob: The blob of data to match with what this handler
122 * len: The length of the blob.
123 * handler_ctx: For a handler marked repeatable, this pointer can
124 * be used to create a context for the handler. IT IS
125 * THE HANDLER'S RESPONSIBILITY TO CREATE AND DESTROY
126 * THIS CONTEXT APPROPRIATELY, i.e. create on first call
127 * and destroy when about to return NULL.
128 * ui_method: Application UI method for getting a password, pin
129 * or any other interactive data.
130 * ui_data: Application data to be passed to ui_method when
135 typedef OSSL_STORE_INFO *(*file_try_decode_fn)(const char *pem_name,
136 const char *pem_header,
137 const unsigned char *blob,
138 size_t len, void **handler_ctx,
139 const UI_METHOD *ui_method,
142 * The eof function should return 1 if there's no more data to be found
143 * with the handler_ctx, otherwise 0. This is only used when the handler is
146 typedef int (*file_eof_fn)(void *handler_ctx);
148 * The destroy_ctx function is used to destroy the handler_ctx that was
149 * intiated by a repeatable try_decode fuction. This is only used when
150 * the handler is marked repeatable.
152 typedef void (*file_destroy_ctx_fn)(void **handler_ctx);
154 typedef struct file_handler_st {
156 file_try_decode_fn try_decode;
158 file_destroy_ctx_fn destroy_ctx;
164 static OSSL_STORE_INFO *try_decode_PKCS12(const char *pem_name,
165 const char *pem_header,
166 const unsigned char *blob,
167 size_t len, void **pctx,
168 const UI_METHOD *ui_method,
171 OSSL_STORE_INFO *store_info = NULL;
172 STACK_OF(OSSL_STORE_INFO) *ctx = *pctx;
175 /* Initial parsing */
179 if (pem_name != NULL)
180 /* No match, there is no PEM PKCS12 tag */
183 if ((p12 = d2i_PKCS12(NULL, &blob, len)) != NULL) {
185 char tpass[PEM_BUFSIZE];
186 EVP_PKEY *pkey = NULL;
188 STACK_OF(X509) *chain = NULL;
190 if (PKCS12_verify_mac(p12, "", 0)
191 || PKCS12_verify_mac(p12, NULL, 0)) {
194 if ((pass = file_get_pass(ui_method, tpass, PEM_BUFSIZE,
195 "PKCS12 import password",
197 OSSL_STOREerr(OSSL_STORE_F_TRY_DECODE_PKCS12,
198 OSSL_STORE_R_PASSPHRASE_CALLBACK_ERROR);
201 if (!PKCS12_verify_mac(p12, pass, strlen(pass))) {
202 OSSL_STOREerr(OSSL_STORE_F_TRY_DECODE_PKCS12,
203 OSSL_STORE_R_ERROR_VERIFYING_PKCS12_MAC);
208 if (PKCS12_parse(p12, pass, &pkey, &cert, &chain)) {
209 OSSL_STORE_INFO *si_pkey = NULL;
210 OSSL_STORE_INFO *si_cert = NULL;
211 OSSL_STORE_INFO *si_ca = NULL;
213 if ((ctx = sk_OSSL_STORE_INFO_new_null()) != NULL
214 && (si_pkey = OSSL_STORE_INFO_new_PKEY(pkey)) != NULL
215 && sk_OSSL_STORE_INFO_push(ctx, si_pkey) != 0
216 && (si_cert = OSSL_STORE_INFO_new_CERT(cert)) != NULL
217 && sk_OSSL_STORE_INFO_push(ctx, si_cert) != 0) {
222 while(sk_X509_num(chain) > 0) {
223 X509 *ca = sk_X509_value(chain, 0);
225 if ((si_ca = OSSL_STORE_INFO_new_CERT(ca)) == NULL
226 || sk_OSSL_STORE_INFO_push(ctx, si_ca) == 0) {
231 (void)sk_X509_shift(chain);
235 OSSL_STORE_INFO_free(si_ca);
236 OSSL_STORE_INFO_free(si_cert);
237 OSSL_STORE_INFO_free(si_pkey);
238 sk_OSSL_STORE_INFO_pop_free(ctx, OSSL_STORE_INFO_free);
241 sk_X509_pop_free(chain, X509_free);
254 store_info = sk_OSSL_STORE_INFO_shift(ctx);
258 static int eof_PKCS12(void *ctx_)
260 STACK_OF(OSSL_STORE_INFO) *ctx = ctx_;
262 return ctx == NULL || sk_OSSL_STORE_INFO_num(ctx) == 0;
264 static void destroy_ctx_PKCS12(void **pctx)
266 STACK_OF(OSSL_STORE_INFO) *ctx = *pctx;
268 sk_OSSL_STORE_INFO_pop_free(ctx, OSSL_STORE_INFO_free);
271 static FILE_HANDLER PKCS12_handler = {
279 static OSSL_STORE_INFO *try_decode_PKCS8Encrypted(const char *pem_name,
280 const char *pem_header,
281 const unsigned char *blob,
282 size_t len, void **pctx,
283 const UI_METHOD *ui_method,
287 char kbuf[PEM_BUFSIZE];
289 const X509_ALGOR *dalg = NULL;
290 const ASN1_OCTET_STRING *doct = NULL;
291 OSSL_STORE_INFO *store_info = NULL;
293 unsigned char *new_data = NULL;
296 if (pem_name != NULL && strcmp(pem_name, PEM_STRING_PKCS8) != 0)
299 if ((p8 = d2i_X509_SIG(NULL, &blob, len)) == NULL)
302 if ((mem = BUF_MEM_new()) == NULL) {
303 OSSL_STOREerr(OSSL_STORE_F_TRY_DECODE_PKCS8ENCRYPTED,
304 ERR_R_MALLOC_FAILURE);
308 if ((pass = file_get_pass(ui_method, kbuf, PEM_BUFSIZE,
309 "PKCS8 decrypt password", ui_data)) == NULL) {
310 OSSL_STOREerr(OSSL_STORE_F_TRY_DECODE_PKCS8ENCRYPTED,
311 OSSL_STORE_R_BAD_PASSWORD_READ);
315 X509_SIG_get0(p8, &dalg, &doct);
316 if (!PKCS12_pbe_crypt(dalg, pass, strlen(pass), doct->data, doct->length,
317 &new_data, &new_data_len, 0))
320 mem->data = (char *)new_data;
321 mem->max = mem->length = (size_t)new_data_len;
324 store_info = ossl_store_info_new_EMBEDDED(PEM_STRING_PKCS8INF, mem);
325 if (store_info == NULL) {
326 OSSL_STOREerr(OSSL_STORE_F_TRY_DECODE_PKCS8ENCRYPTED,
327 ERR_R_MALLOC_FAILURE);
337 static FILE_HANDLER PKCS8Encrypted_handler = {
339 try_decode_PKCS8Encrypted
342 int pem_check_suffix(const char *pem_str, const char *suffix);
343 static OSSL_STORE_INFO *try_decode_PrivateKey(const char *pem_name,
344 const char *pem_header,
345 const unsigned char *blob,
346 size_t len, void **pctx,
347 const UI_METHOD *ui_method,
350 OSSL_STORE_INFO *store_info = NULL;
351 EVP_PKEY *pkey = NULL;
352 const EVP_PKEY_ASN1_METHOD *ameth = NULL;
354 if (pem_name != NULL) {
355 if (strcmp(pem_name, PEM_STRING_PKCS8INF) == 0) {
356 PKCS8_PRIV_KEY_INFO *p8inf =
357 d2i_PKCS8_PRIV_KEY_INFO(NULL, &blob, len);
360 pkey = EVP_PKCS82PKEY(p8inf);
361 PKCS8_PRIV_KEY_INFO_free(p8inf);
365 if ((slen = pem_check_suffix(pem_name, "PRIVATE KEY")) > 0
366 && (ameth = EVP_PKEY_asn1_find_str(NULL, pem_name,
368 pkey = d2i_PrivateKey(ameth->pkey_id, NULL, &blob, len);
373 for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
374 ameth = EVP_PKEY_asn1_get0(i);
375 if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
377 pkey = d2i_PrivateKey(ameth->pkey_id, NULL, &blob, len);
386 store_info = OSSL_STORE_INFO_new_PKEY(pkey);
387 if (store_info == NULL)
392 static FILE_HANDLER PrivateKey_handler = {
394 try_decode_PrivateKey
397 static OSSL_STORE_INFO *try_decode_PUBKEY(const char *pem_name,
398 const char *pem_header,
399 const unsigned char *blob,
400 size_t len, void **pctx,
401 const UI_METHOD *ui_method,
404 OSSL_STORE_INFO *store_info = NULL;
405 EVP_PKEY *pkey = NULL;
407 if (pem_name != NULL && strcmp(pem_name, PEM_STRING_PUBLIC) != 0)
411 if ((pkey = d2i_PUBKEY(NULL, &blob, len)) != NULL)
412 store_info = OSSL_STORE_INFO_new_PKEY(pkey);
416 static FILE_HANDLER PUBKEY_handler = {
421 static OSSL_STORE_INFO *try_decode_params(const char *pem_name,
422 const char *pem_header,
423 const unsigned char *blob,
424 size_t len, void **pctx,
425 const UI_METHOD *ui_method,
428 OSSL_STORE_INFO *store_info = NULL;
429 EVP_PKEY *pkey = EVP_PKEY_new();
430 const EVP_PKEY_ASN1_METHOD *ameth = NULL;
434 OSSL_STOREerr(OSSL_STORE_F_TRY_DECODE_PARAMS, ERR_R_EVP_LIB);
438 if (pem_name != NULL) {
441 if ((slen = pem_check_suffix(pem_name, "PARAMETERS")) > 0
442 && EVP_PKEY_set_type_str(pkey, pem_name, slen)
443 && (ameth = EVP_PKEY_get0_asn1(pkey)) != NULL
444 && ameth->param_decode != NULL
445 && ameth->param_decode(pkey, &blob, len))
450 for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
451 ameth = EVP_PKEY_asn1_get0(i);
452 if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
454 if (EVP_PKEY_set_type(pkey, ameth->pkey_id)
455 && (ameth = EVP_PKEY_get0_asn1(pkey)) != NULL
456 && ameth->param_decode != NULL
457 && ameth->param_decode(pkey, &blob, len)) {
465 store_info = OSSL_STORE_INFO_new_PARAMS(pkey);
466 if (store_info == NULL)
471 static FILE_HANDLER params_handler = {
476 static OSSL_STORE_INFO *try_decode_X509Certificate(const char *pem_name,
477 const char *pem_header,
478 const unsigned char *blob,
479 size_t len, void **pctx,
480 const UI_METHOD *ui_method,
483 OSSL_STORE_INFO *store_info = NULL;
487 * In most cases, we can try to interpret the serialized data as a trusted
488 * cert (X509 + X509_AUX) and fall back to reading it as a normal cert
489 * (just X509), but if the PEM name specifically declares it as a trusted
490 * cert, then no fallback should be engaged. |ignore_trusted| tells if
491 * the fallback can be used (1) or not (0).
493 int ignore_trusted = 1;
495 if (pem_name != NULL) {
496 if (strcmp(pem_name, PEM_STRING_X509_TRUSTED) == 0)
498 else if (strcmp(pem_name, PEM_STRING_X509_OLD) != 0
499 && strcmp(pem_name, PEM_STRING_X509) != 0)
504 if ((cert = d2i_X509_AUX(NULL, &blob, len)) != NULL
505 || (ignore_trusted && (cert = d2i_X509(NULL, &blob, len)) != NULL))
506 store_info = OSSL_STORE_INFO_new_CERT(cert);
508 if (store_info == NULL)
513 static FILE_HANDLER X509Certificate_handler = {
515 try_decode_X509Certificate
518 static OSSL_STORE_INFO *try_decode_X509CRL(const char *pem_name,
519 const char *pem_header,
520 const unsigned char *blob,
521 size_t len, void **pctx,
522 const UI_METHOD *ui_method,
525 OSSL_STORE_INFO *store_info = NULL;
526 X509_CRL *crl = NULL;
529 && strcmp(pem_name, PEM_STRING_X509_CRL) != 0)
533 if ((crl = d2i_X509_CRL(NULL, &blob, len)) != NULL)
534 store_info = OSSL_STORE_INFO_new_CRL(crl);
536 if (store_info == NULL)
541 static FILE_HANDLER X509CRL_handler = {
546 static const FILE_HANDLER *file_handlers[] = {
548 &PKCS8Encrypted_handler,
549 &X509Certificate_handler,
561 struct ossl_store_loader_ctx_st {
569 struct { /* Used with is_raw and is_pem */
573 * The following are used when the handler is marked as
576 const FILE_HANDLER *last_handler;
577 void *last_handler_ctx;
579 struct { /* Used with is_dir */
580 OPENSSL_DIR_CTX *ctx;
585 * The directory reading utility we have combines opening with
586 * reading the first name. To make sure we can detect the end
587 * at the right time, we read early and cache the name.
589 const char *last_entry;
595 static void OSSL_STORE_LOADER_CTX_free(OSSL_STORE_LOADER_CTX *ctx)
597 if (ctx->type == is_dir) {
598 OPENSSL_free(ctx->_.dir.uri);
600 if (ctx->_.file.last_handler != NULL) {
601 ctx->_.file.last_handler->destroy_ctx(&ctx->_.file.last_handler_ctx);
602 ctx->_.file.last_handler_ctx = NULL;
603 ctx->_.file.last_handler = NULL;
609 static OSSL_STORE_LOADER_CTX *file_open(const OSSL_STORE_LOADER *loader,
611 const UI_METHOD *ui_method,
614 OSSL_STORE_LOADER_CTX *ctx = NULL;
616 const char *path = NULL;
618 if (strncasecmp(uri, "file:", 5) == 0) {
619 if (strncmp(&uri[5], "//localhost/", 12) == 0) {
621 } else if (strncmp(&uri[5], "///", 3) == 0) {
623 } else if (strncmp(&uri[5], "//", 2) != 0) {
626 OSSL_STOREerr(OSSL_STORE_F_FILE_OPEN,
627 OSSL_STORE_R_URI_AUTHORITY_UNSUPPORED);
632 * If the scheme "file" was an explicit part of the URI, the path must
633 * be absolute. So says RFC 8089
635 if (path[0] != '/') {
636 OSSL_STOREerr(OSSL_STORE_F_FILE_OPEN,
637 OSSL_STORE_R_PATH_MUST_BE_ABSOLUTE);
642 /* Windows file: URIs with a drive letter start with a / */
643 if (path[0] == '/' && path[2] == ':' && path[3] == '/')
651 if (stat(path, &st) < 0) {
652 SYSerr(SYS_F_STAT, errno);
653 ERR_add_error_data(1, path);
657 ctx = OPENSSL_zalloc(sizeof(*ctx));
659 OSSL_STOREerr(OSSL_STORE_F_FILE_OPEN, ERR_R_MALLOC_FAILURE);
663 if ((st.st_mode & S_IFDIR) == S_IFDIR) {
665 * Try to copy everything, even if we know that some of them must be
666 * NULL for the moment. This prevents errors in the future, when more
667 * components may be used.
669 ctx->_.dir.uri = OPENSSL_strdup(uri);
672 if (ctx->_.dir.uri == NULL)
675 ctx->_.dir.last_entry = OPENSSL_DIR_read(&ctx->_.dir.ctx, path);
676 ctx->_.dir.last_errno = errno;
677 if (ctx->_.dir.last_entry == NULL) {
678 if (ctx->_.dir.last_errno != 0) {
680 errno = ctx->_.dir.last_errno;
681 openssl_strerror_r(errno, errbuf, sizeof(errbuf));
682 OSSL_STOREerr(OSSL_STORE_F_FILE_OPEN, ERR_R_SYS_LIB);
683 ERR_add_error_data(1, errbuf);
686 ctx->_.dir.end_reached = 1;
692 if ((buff = BIO_new(BIO_f_buffer())) == NULL
693 || (ctx->_.file.file = BIO_new_file(path, "rb")) == NULL) {
698 ctx->_.file.file = BIO_push(buff, ctx->_.file.file);
699 if (BIO_buffer_peek(ctx->_.file.file, peekbuf, sizeof(peekbuf)-1) > 0) {
700 peekbuf[sizeof(peekbuf)-1] = '\0';
701 if (strstr(peekbuf, "-----BEGIN ") != NULL)
708 OSSL_STORE_LOADER_CTX_free(ctx);
712 static OSSL_STORE_INFO *file_load_try_decode(OSSL_STORE_LOADER_CTX *ctx,
713 const char *pem_name,
714 const char *pem_header,
715 unsigned char *data, size_t len,
716 const UI_METHOD *ui_method,
717 void *ui_data, int *matchcount)
719 OSSL_STORE_INFO *result = NULL;
720 BUF_MEM *new_mem = NULL;
721 char *new_pem_name = NULL;
727 void *handler_ctx = NULL;
728 const FILE_HANDLER **matching_handlers =
729 OPENSSL_zalloc(sizeof(*matching_handlers)
730 * OSSL_NELEM(file_handlers));
732 if (matching_handlers == NULL) {
733 OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD_TRY_DECODE,
734 ERR_R_MALLOC_FAILURE);
739 for (i = 0; i < OSSL_NELEM(file_handlers); i++) {
740 const FILE_HANDLER *handler = file_handlers[i];
741 void *tmp_handler_ctx = NULL;
742 OSSL_STORE_INFO *tmp_result =
743 handler->try_decode(pem_name, pem_header, data, len,
744 &tmp_handler_ctx, ui_method, ui_data);
746 if (tmp_result == NULL) {
747 OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD_TRY_DECODE,
748 OSSL_STORE_R_IS_NOT_A);
749 ERR_add_error_data(1, handler->name);
751 if (matching_handlers)
752 matching_handlers[*matchcount] = handler;
755 handler->destroy_ctx(&handler_ctx);
756 handler_ctx = tmp_handler_ctx;
758 if (++*matchcount == 1) {
762 /* more than one match => ambiguous, kill any result */
763 OSSL_STORE_INFO_free(result);
764 OSSL_STORE_INFO_free(tmp_result);
765 if (handler->destroy_ctx != NULL)
766 handler->destroy_ctx(&handler_ctx);
774 OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD_TRY_DECODE,
775 OSSL_STORE_R_AMBIGUOUS_CONTENT_TYPE);
776 if (*matchcount == 0)
777 OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD_TRY_DECODE,
778 OSSL_STORE_R_UNSUPPORTED_CONTENT_TYPE);
779 else if (matching_handlers[0]->repeatable) {
781 OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD_TRY_DECODE,
782 OSSL_STORE_R_UNSUPPORTED_CONTENT_TYPE);
783 OSSL_STORE_INFO_free(result);
786 ctx->_.file.last_handler = matching_handlers[0];
787 ctx->_.file.last_handler_ctx = handler_ctx;
791 OPENSSL_free(matching_handlers);
795 OPENSSL_free(new_pem_name);
796 BUF_MEM_free(new_mem);
799 && (t = OSSL_STORE_INFO_get_type(result)) == OSSL_STORE_INFO_EMBEDDED) {
800 pem_name = new_pem_name =
801 ossl_store_info_get0_EMBEDDED_pem_name(result);
802 new_mem = ossl_store_info_get0_EMBEDDED_buffer(result);
803 data = (unsigned char *)new_mem->data;
804 len = new_mem->length;
805 OPENSSL_free(result);
816 static OSSL_STORE_INFO *file_load_try_repeat(OSSL_STORE_LOADER_CTX *ctx,
817 const UI_METHOD *ui_method,
820 OSSL_STORE_INFO *result = NULL;
822 if (ctx->_.file.last_handler != NULL) {
824 ctx->_.file.last_handler->try_decode(NULL, NULL, NULL, 0,
825 &ctx->_.file.last_handler_ctx,
828 if (result == NULL) {
829 ctx->_.file.last_handler->destroy_ctx(&ctx->_.file.last_handler_ctx);
830 ctx->_.file.last_handler_ctx = NULL;
831 ctx->_.file.last_handler = NULL;
837 static int file_read_pem(BIO *bp, char **pem_name, char **pem_header,
838 unsigned char **data, long *len,
839 const UI_METHOD *ui_method,
842 int i = PEM_read_bio(bp, pem_name, pem_header, data, len);
848 * 10 is the number of characters in "Proc-Type:", which
849 * PEM_get_EVP_CIPHER_INFO() requires to be present.
850 * If the PEM header has less characters than that, it's
851 * not worth spending cycles on it.
853 if (strlen(*pem_header) > 10) {
854 EVP_CIPHER_INFO cipher;
855 struct pem_pass_data pass_data;
857 if (!PEM_get_EVP_CIPHER_INFO(*pem_header, &cipher)
858 || !file_fill_pem_pass_data(&pass_data, "PEM", ui_method, ui_data)
859 || !PEM_do_header(&cipher, *data, len, file_get_pem_pass,
867 static int file_read_asn1(BIO *bp, unsigned char **data, long *len)
871 if (asn1_d2i_read_bio(bp, &mem) < 0)
874 *data = (unsigned char *)mem->data;
875 *len = (long)mem->length;
881 static int ends_with_dirsep(const char *uri)
884 uri += strlen(uri) - 1;
886 if (*uri == ']' || *uri == '>' || *uri == ':')
895 static int file_name_to_uri(OSSL_STORE_LOADER_CTX *ctx, const char *name,
898 assert(name != NULL);
899 assert(data != NULL);
901 const char *pathsep = ends_with_dirsep(ctx->_.dir.uri) ? "" : "/";
902 long calculated_length = strlen(ctx->_.dir.uri) + strlen(pathsep)
903 + strlen(name) + 1 /* \0 */;
905 *data = OPENSSL_zalloc(calculated_length);
907 OSSL_STOREerr(OSSL_STORE_F_FILE_NAME_TO_URI, ERR_R_MALLOC_FAILURE);
911 OPENSSL_strlcat(*data, ctx->_.dir.uri, calculated_length);
912 OPENSSL_strlcat(*data, pathsep, calculated_length);
913 OPENSSL_strlcat(*data, name, calculated_length);
918 static int file_eof(OSSL_STORE_LOADER_CTX *ctx);
919 static int file_error(OSSL_STORE_LOADER_CTX *ctx);
920 static OSSL_STORE_INFO *file_load(OSSL_STORE_LOADER_CTX *ctx,
921 const UI_METHOD *ui_method, void *ui_data)
923 OSSL_STORE_INFO *result = NULL;
925 if (ctx->type == is_dir) {
927 char *newname = NULL;
929 if (ctx->_.dir.last_entry == NULL) {
930 if (!ctx->_.dir.end_reached) {
932 assert(ctx->_.dir.last_errno != 0);
933 errno = ctx->_.dir.last_errno;
935 openssl_strerror_r(errno, errbuf, sizeof(errbuf));
936 OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD, ERR_R_SYS_LIB);
937 ERR_add_error_data(1, errbuf);
942 if (ctx->_.dir.last_entry[0] != '.'
943 && !file_name_to_uri(ctx, ctx->_.dir.last_entry, &newname))
947 * On the first call (with a NULL context), OPENSSL_DIR_read()
948 * cares about the second argument. On the following calls, it
949 * only cares that it isn't NULL. Therefore, we can safely give
952 ctx->_.dir.last_entry = OPENSSL_DIR_read(&ctx->_.dir.ctx,
954 ctx->_.dir.last_errno = errno;
955 if (ctx->_.dir.last_entry == NULL && ctx->_.dir.last_errno == 0)
956 ctx->_.dir.end_reached = 1;
959 && (result = OSSL_STORE_INFO_new_NAME(newname)) == NULL) {
960 OPENSSL_free(newname);
961 OSSL_STOREerr(OSSL_STORE_F_FILE_LOAD, ERR_R_OSSL_STORE_LIB);
964 } while (result == NULL && !file_eof(ctx));
968 result = file_load_try_repeat(ctx, ui_method, ui_data);
976 char *pem_name = NULL; /* PEM record name */
977 char *pem_header = NULL; /* PEM record header */
978 unsigned char *data = NULL; /* DER encoded data */
979 long len = 0; /* DER encoded data length */
982 if (ctx->type == is_pem) {
983 if (!file_read_pem(ctx->_.file.file, &pem_name, &pem_header,
984 &data, &len, ui_method, ui_data)) {
990 if (!file_read_asn1(ctx->_.file.file, &data, &len)) {
997 result = file_load_try_decode(ctx, pem_name, pem_header, data, len,
998 ui_method, ui_data, &matchcount);
1001 OPENSSL_free(pem_name);
1002 OPENSSL_free(pem_header);
1004 } while (matchcount == 0 && !file_eof(ctx) && !file_error(ctx));
1006 /* We bail out on ambiguity */
1014 static int file_error(OSSL_STORE_LOADER_CTX *ctx)
1016 return ctx->errcnt > 0;
1019 static int file_eof(OSSL_STORE_LOADER_CTX *ctx)
1021 if (ctx->type == is_dir)
1022 return ctx->_.dir.end_reached;
1024 if (ctx->_.file.last_handler != NULL
1025 && !ctx->_.file.last_handler->eof(ctx->_.file.last_handler_ctx))
1027 return BIO_eof(ctx->_.file.file);
1030 static int file_close(OSSL_STORE_LOADER_CTX *ctx)
1032 if (ctx->type == is_dir) {
1033 OPENSSL_DIR_end(&ctx->_.dir.ctx);
1035 BIO_free_all(ctx->_.file.file);
1037 OSSL_STORE_LOADER_CTX_free(ctx);
1041 static OSSL_STORE_LOADER file_loader =
1052 static void store_file_loader_deinit(void)
1054 ossl_store_unregister_loader_int(file_loader.scheme);
1057 int ossl_store_file_loader_init(void)
1059 int ret = ossl_store_register_loader_int(&file_loader);
1061 OPENSSL_atexit(store_file_loader_deinit);