File: [local] / src / usr.bin / openssl / apps.c (download)
Revision 1.67, Tue Nov 21 17:56:19 2023 UTC (5 months, 3 weeks ago) by tb
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE, OPENBSD_7_5, HEAD
Changes since 1.66: +2 -2 lines
Make a few purpose things const
This should allow us to constify a sizable table in libcrypto in an
upcoming bump.
|
/* $OpenBSD: apps.c,v 1.67 2023/11/21 17:56:19 tb Exp $ */
/*
* Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include "apps.h"
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/pkcs12.h>
#include <openssl/rsa.h>
#include <openssl/safestack.h>
#include <openssl/ssl.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
typedef struct {
const char *name;
unsigned long flag;
unsigned long mask;
} NAME_EX_TBL;
UI_METHOD *ui_method = NULL;
static int set_table_opts(unsigned long *flags, const char *arg,
const NAME_EX_TBL *in_tbl);
static int set_multi_opts(unsigned long *flags, const char *arg,
const NAME_EX_TBL *in_tbl);
int
str2fmt(char *s)
{
if (s == NULL)
return FORMAT_UNDEF;
if ((*s == 'D') || (*s == 'd'))
return (FORMAT_ASN1);
else if ((*s == 'T') || (*s == 't'))
return (FORMAT_TEXT);
else if ((*s == 'S') || (*s == 's'))
return (FORMAT_SMIME);
else if ((*s == 'M') || (*s == 'm'))
return (FORMAT_MSBLOB);
else if ((*s == '1') ||
(strcmp(s, "PKCS12") == 0) || (strcmp(s, "pkcs12") == 0) ||
(strcmp(s, "P12") == 0) || (strcmp(s, "p12") == 0))
return (FORMAT_PKCS12);
else if ((*s == 'P') || (*s == 'p')) {
if (s[1] == 'V' || s[1] == 'v')
return FORMAT_PVK;
else
return (FORMAT_PEM);
} else
return (FORMAT_UNDEF);
}
void
program_name(char *in, char *out, int size)
{
char *p;
p = strrchr(in, '/');
if (p != NULL)
p++;
else
p = in;
strlcpy(out, p, size);
}
int
dump_cert_text(BIO *out, X509 *x)
{
char *p;
p = X509_NAME_oneline(X509_get_subject_name(x), NULL, 0);
BIO_puts(out, "subject=");
BIO_puts(out, p);
free(p);
p = X509_NAME_oneline(X509_get_issuer_name(x), NULL, 0);
BIO_puts(out, "\nissuer=");
BIO_puts(out, p);
BIO_puts(out, "\n");
free(p);
return 0;
}
int
ui_open(UI *ui)
{
return UI_method_get_opener(UI_OpenSSL()) (ui);
}
int
ui_read(UI *ui, UI_STRING *uis)
{
const char *password;
int string_type;
if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD &&
UI_get0_user_data(ui)) {
string_type = UI_get_string_type(uis);
if (string_type == UIT_PROMPT || string_type == UIT_VERIFY) {
password =
((PW_CB_DATA *)UI_get0_user_data(ui))->password;
if (password && password[0] != '\0') {
UI_set_result(ui, uis, password);
return 1;
}
}
}
return UI_method_get_reader(UI_OpenSSL()) (ui, uis);
}
int
ui_write(UI *ui, UI_STRING *uis)
{
const char *password;
int string_type;
if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD &&
UI_get0_user_data(ui)) {
string_type = UI_get_string_type(uis);
if (string_type == UIT_PROMPT || string_type == UIT_VERIFY) {
password =
((PW_CB_DATA *)UI_get0_user_data(ui))->password;
if (password && password[0] != '\0')
return 1;
}
}
return UI_method_get_writer(UI_OpenSSL()) (ui, uis);
}
int
ui_close(UI *ui)
{
return UI_method_get_closer(UI_OpenSSL()) (ui);
}
int
password_callback(char *buf, int bufsiz, int verify, void *arg)
{
PW_CB_DATA *cb_tmp = arg;
UI *ui = NULL;
int res = 0;
const char *prompt_info = NULL;
const char *password = NULL;
PW_CB_DATA *cb_data = (PW_CB_DATA *) cb_tmp;
if (cb_data) {
if (cb_data->password)
password = cb_data->password;
if (cb_data->prompt_info)
prompt_info = cb_data->prompt_info;
}
if (password) {
res = strlen(password);
if (res > bufsiz)
res = bufsiz;
memcpy(buf, password, res);
return res;
}
ui = UI_new_method(ui_method);
if (ui) {
int ok = 0;
char *buff = NULL;
int ui_flags = 0;
char *prompt = NULL;
prompt = UI_construct_prompt(ui, "pass phrase", prompt_info);
ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
if (ok >= 0)
ok = UI_add_input_string(ui, prompt, ui_flags, buf,
PW_MIN_LENGTH, bufsiz - 1);
if (ok >= 0 && verify) {
buff = malloc(bufsiz);
ok = UI_add_verify_string(ui, prompt, ui_flags, buff,
PW_MIN_LENGTH, bufsiz - 1, buf);
}
if (ok >= 0)
do {
ok = UI_process(ui);
} while (ok < 0 &&
UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
freezero(buff, (unsigned int) bufsiz);
if (ok >= 0)
res = strlen(buf);
if (ok == -1) {
BIO_printf(bio_err, "User interface error\n");
ERR_print_errors(bio_err);
explicit_bzero(buf, (unsigned int) bufsiz);
res = 0;
}
if (ok == -2) {
BIO_printf(bio_err, "aborted!\n");
explicit_bzero(buf, (unsigned int) bufsiz);
res = 0;
}
UI_free(ui);
free(prompt);
}
return res;
}
static char *app_get_pass(BIO *err, char *arg, int keepbio);
int
app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
{
int same;
if (!arg2 || !arg1 || strcmp(arg1, arg2))
same = 0;
else
same = 1;
if (arg1) {
*pass1 = app_get_pass(err, arg1, same);
if (!*pass1)
return 0;
} else if (pass1)
*pass1 = NULL;
if (arg2) {
*pass2 = app_get_pass(err, arg2, same ? 2 : 0);
if (!*pass2)
return 0;
} else if (pass2)
*pass2 = NULL;
return 1;
}
static char *
app_get_pass(BIO *err, char *arg, int keepbio)
{
char *tmp, tpass[APP_PASS_LEN];
static BIO *pwdbio = NULL;
const char *errstr = NULL;
int i;
if (!strncmp(arg, "pass:", 5))
return strdup(arg + 5);
if (!strncmp(arg, "env:", 4)) {
tmp = getenv(arg + 4);
if (!tmp) {
BIO_printf(err, "Can't read environment variable %s\n",
arg + 4);
return NULL;
}
return strdup(tmp);
}
if (!keepbio || !pwdbio) {
if (!strncmp(arg, "file:", 5)) {
pwdbio = BIO_new_file(arg + 5, "r");
if (!pwdbio) {
BIO_printf(err, "Can't open file %s\n",
arg + 5);
return NULL;
}
} else if (!strncmp(arg, "fd:", 3)) {
BIO *btmp;
i = strtonum(arg + 3, 0, INT_MAX, &errstr);
if (errstr) {
BIO_printf(err,
"Invalid file descriptor %s: %s\n",
arg, errstr);
return NULL;
}
pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
if (!pwdbio) {
BIO_printf(err,
"Can't access file descriptor %s\n",
arg + 3);
return NULL;
}
/*
* Can't do BIO_gets on an fd BIO so add a buffering
* BIO
*/
btmp = BIO_new(BIO_f_buffer());
pwdbio = BIO_push(btmp, pwdbio);
} else if (!strcmp(arg, "stdin")) {
pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
if (!pwdbio) {
BIO_printf(err, "Can't open BIO for stdin\n");
return NULL;
}
} else {
BIO_printf(err, "Invalid password argument \"%s\"\n",
arg);
return NULL;
}
}
i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
if (keepbio != 1) {
BIO_free_all(pwdbio);
pwdbio = NULL;
}
if (i <= 0) {
BIO_printf(err, "Error reading password from BIO\n");
return NULL;
}
tmp = strchr(tpass, '\n');
if (tmp)
*tmp = 0;
return strdup(tpass);
}
int
add_oid_section(BIO *err, CONF *conf)
{
char *p;
STACK_OF(CONF_VALUE) *sktmp;
CONF_VALUE *cnf;
int i;
if (!(p = NCONF_get_string(conf, NULL, "oid_section"))) {
ERR_clear_error();
return 1;
}
if (!(sktmp = NCONF_get_section(conf, p))) {
BIO_printf(err, "problem loading oid section %s\n", p);
return 0;
}
for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
cnf = sk_CONF_VALUE_value(sktmp, i);
if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
BIO_printf(err, "problem creating object %s=%s\n",
cnf->name, cnf->value);
return 0;
}
}
return 1;
}
static int
load_pkcs12(BIO *err, BIO *in, const char *desc, pem_password_cb *pem_cb,
void *cb_data, EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
{
const char *pass;
char tpass[PEM_BUFSIZE];
int len, ret = 0;
PKCS12 *p12;
p12 = d2i_PKCS12_bio(in, NULL);
if (p12 == NULL) {
BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
goto die;
}
/* See if an empty password will do */
if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
pass = "";
else {
if (!pem_cb)
pem_cb = password_callback;
len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
if (len < 0) {
BIO_printf(err, "Passpharse callback error for %s\n",
desc);
goto die;
}
if (len < PEM_BUFSIZE)
tpass[len] = 0;
if (!PKCS12_verify_mac(p12, tpass, len)) {
BIO_printf(err,
"Mac verify error (wrong password?) in PKCS12 file for %s\n", desc);
goto die;
}
pass = tpass;
}
ret = PKCS12_parse(p12, pass, pkey, cert, ca);
die:
PKCS12_free(p12);
return ret;
}
X509 *
load_cert(BIO *err, const char *file, int format, const char *pass,
const char *cert_descrip)
{
X509 *x = NULL;
BIO *cert;
if ((cert = BIO_new(BIO_s_file())) == NULL) {
ERR_print_errors(err);
goto end;
}
if (file == NULL) {
setvbuf(stdin, NULL, _IONBF, 0);
BIO_set_fp(cert, stdin, BIO_NOCLOSE);
} else {
if (BIO_read_filename(cert, file) <= 0) {
BIO_printf(err, "Error opening %s %s\n",
cert_descrip, file);
ERR_print_errors(err);
goto end;
}
}
if (format == FORMAT_ASN1)
x = d2i_X509_bio(cert, NULL);
else if (format == FORMAT_PEM)
x = PEM_read_bio_X509_AUX(cert, NULL, password_callback, NULL);
else if (format == FORMAT_PKCS12) {
if (!load_pkcs12(err, cert, cert_descrip, NULL, NULL,
NULL, &x, NULL))
goto end;
} else {
BIO_printf(err, "bad input format specified for %s\n",
cert_descrip);
goto end;
}
end:
if (x == NULL) {
BIO_printf(err, "unable to load certificate\n");
ERR_print_errors(err);
}
BIO_free(cert);
return (x);
}
EVP_PKEY *
load_key(BIO *err, const char *file, int format, int maybe_stdin,
const char *pass, const char *key_descrip)
{
BIO *key = NULL;
EVP_PKEY *pkey = NULL;
PW_CB_DATA cb_data;
cb_data.password = pass;
cb_data.prompt_info = file;
if (file == NULL && (!maybe_stdin)) {
BIO_printf(err, "no keyfile specified\n");
goto end;
}
key = BIO_new(BIO_s_file());
if (key == NULL) {
ERR_print_errors(err);
goto end;
}
if (file == NULL && maybe_stdin) {
setvbuf(stdin, NULL, _IONBF, 0);
BIO_set_fp(key, stdin, BIO_NOCLOSE);
} else if (BIO_read_filename(key, file) <= 0) {
BIO_printf(err, "Error opening %s %s\n",
key_descrip, file);
ERR_print_errors(err);
goto end;
}
if (format == FORMAT_ASN1) {
pkey = d2i_PrivateKey_bio(key, NULL);
} else if (format == FORMAT_PEM) {
pkey = PEM_read_bio_PrivateKey(key, NULL, password_callback, &cb_data);
}
else if (format == FORMAT_PKCS12) {
if (!load_pkcs12(err, key, key_descrip, password_callback, &cb_data,
&pkey, NULL, NULL))
goto end;
}
#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA) && !defined (OPENSSL_NO_RC4)
else if (format == FORMAT_MSBLOB)
pkey = b2i_PrivateKey_bio(key);
else if (format == FORMAT_PVK)
pkey = b2i_PVK_bio(key, password_callback,
&cb_data);
#endif
else {
BIO_printf(err, "bad input format specified for key file\n");
goto end;
}
end:
BIO_free(key);
if (pkey == NULL) {
BIO_printf(err, "unable to load %s\n", key_descrip);
ERR_print_errors(err);
}
return (pkey);
}
EVP_PKEY *
load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
const char *pass, const char *key_descrip)
{
BIO *key = NULL;
EVP_PKEY *pkey = NULL;
PW_CB_DATA cb_data;
cb_data.password = pass;
cb_data.prompt_info = file;
if (file == NULL && !maybe_stdin) {
BIO_printf(err, "no keyfile specified\n");
goto end;
}
key = BIO_new(BIO_s_file());
if (key == NULL) {
ERR_print_errors(err);
goto end;
}
if (file == NULL && maybe_stdin) {
setvbuf(stdin, NULL, _IONBF, 0);
BIO_set_fp(key, stdin, BIO_NOCLOSE);
} else if (BIO_read_filename(key, file) <= 0) {
BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
ERR_print_errors(err);
goto end;
}
if (format == FORMAT_ASN1) {
pkey = d2i_PUBKEY_bio(key, NULL);
}
else if (format == FORMAT_ASN1RSA) {
RSA *rsa;
rsa = d2i_RSAPublicKey_bio(key, NULL);
if (rsa) {
pkey = EVP_PKEY_new();
if (pkey)
EVP_PKEY_set1_RSA(pkey, rsa);
RSA_free(rsa);
} else
pkey = NULL;
} else if (format == FORMAT_PEMRSA) {
RSA *rsa;
rsa = PEM_read_bio_RSAPublicKey(key, NULL, password_callback, &cb_data);
if (rsa) {
pkey = EVP_PKEY_new();
if (pkey)
EVP_PKEY_set1_RSA(pkey, rsa);
RSA_free(rsa);
} else
pkey = NULL;
}
else if (format == FORMAT_PEM) {
pkey = PEM_read_bio_PUBKEY(key, NULL, password_callback, &cb_data);
}
#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA)
else if (format == FORMAT_MSBLOB)
pkey = b2i_PublicKey_bio(key);
#endif
else {
BIO_printf(err, "bad input format specified for key file\n");
goto end;
}
end:
BIO_free(key);
if (pkey == NULL)
BIO_printf(err, "unable to load %s\n", key_descrip);
return (pkey);
}
static int
load_certs_crls(BIO *err, const char *file, int format, const char *pass,
const char *desc, STACK_OF(X509) **pcerts,
STACK_OF(X509_CRL) **pcrls)
{
int i;
BIO *bio;
STACK_OF(X509_INFO) *xis = NULL;
X509_INFO *xi;
PW_CB_DATA cb_data;
int rv = 0;
cb_data.password = pass;
cb_data.prompt_info = file;
if (format != FORMAT_PEM) {
BIO_printf(err, "bad input format specified for %s\n", desc);
return 0;
}
if (file == NULL)
bio = BIO_new_fp(stdin, BIO_NOCLOSE);
else
bio = BIO_new_file(file, "r");
if (bio == NULL) {
BIO_printf(err, "Error opening %s %s\n",
desc, file ? file : "stdin");
ERR_print_errors(err);
return 0;
}
xis = PEM_X509_INFO_read_bio(bio, NULL, password_callback, &cb_data);
BIO_free(bio);
if (pcerts) {
*pcerts = sk_X509_new_null();
if (!*pcerts)
goto end;
}
if (pcrls) {
*pcrls = sk_X509_CRL_new_null();
if (!*pcrls)
goto end;
}
for (i = 0; i < sk_X509_INFO_num(xis); i++) {
xi = sk_X509_INFO_value(xis, i);
if (xi->x509 && pcerts) {
if (!sk_X509_push(*pcerts, xi->x509))
goto end;
xi->x509 = NULL;
}
if (xi->crl && pcrls) {
if (!sk_X509_CRL_push(*pcrls, xi->crl))
goto end;
xi->crl = NULL;
}
}
if (pcerts && sk_X509_num(*pcerts) > 0)
rv = 1;
if (pcrls && sk_X509_CRL_num(*pcrls) > 0)
rv = 1;
end:
sk_X509_INFO_pop_free(xis, X509_INFO_free);
if (rv == 0) {
if (pcerts) {
sk_X509_pop_free(*pcerts, X509_free);
*pcerts = NULL;
}
if (pcrls) {
sk_X509_CRL_pop_free(*pcrls, X509_CRL_free);
*pcrls = NULL;
}
BIO_printf(err, "unable to load %s\n",
pcerts ? "certificates" : "CRLs");
ERR_print_errors(err);
}
return rv;
}
STACK_OF(X509) *
load_certs(BIO *err, const char *file, int format, const char *pass,
const char *desc)
{
STACK_OF(X509) *certs;
if (!load_certs_crls(err, file, format, pass, desc, &certs, NULL))
return NULL;
return certs;
}
STACK_OF(X509_CRL) *
load_crls(BIO *err, const char *file, int format, const char *pass,
const char *desc)
{
STACK_OF(X509_CRL) *crls;
if (!load_certs_crls(err, file, format, pass, desc, NULL, &crls))
return NULL;
return crls;
}
#define X509V3_EXT_UNKNOWN_MASK (0xfL << 16)
/* Return error for unknown extensions */
#define X509V3_EXT_DEFAULT 0
/* Print error for unknown extensions */
#define X509V3_EXT_ERROR_UNKNOWN (1L << 16)
/* ASN1 parse unknown extensions */
#define X509V3_EXT_PARSE_UNKNOWN (2L << 16)
/* BIO_dump unknown extensions */
#define X509V3_EXT_DUMP_UNKNOWN (3L << 16)
#define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
int
set_cert_ex(unsigned long *flags, const char *arg)
{
static const NAME_EX_TBL cert_tbl[] = {
{"compatible", X509_FLAG_COMPAT, 0xffffffffl},
{"ca_default", X509_FLAG_CA, 0xffffffffl},
{"no_header", X509_FLAG_NO_HEADER, 0},
{"no_version", X509_FLAG_NO_VERSION, 0},
{"no_serial", X509_FLAG_NO_SERIAL, 0},
{"no_signame", X509_FLAG_NO_SIGNAME, 0},
{"no_validity", X509_FLAG_NO_VALIDITY, 0},
{"no_subject", X509_FLAG_NO_SUBJECT, 0},
{"no_issuer", X509_FLAG_NO_ISSUER, 0},
{"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
{"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
{"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
{"no_aux", X509_FLAG_NO_AUX, 0},
{"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
{"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
{"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
{"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
{"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
{NULL, 0, 0}
};
return set_multi_opts(flags, arg, cert_tbl);
}
int
set_name_ex(unsigned long *flags, const char *arg)
{
static const NAME_EX_TBL ex_tbl[] = {
{"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
{"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
{"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
{"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
{"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
{"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
{"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
{"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
{"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
{"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
{"compat", XN_FLAG_COMPAT, 0xffffffffL},
{"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
{"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
{"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
{"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
{"dn_rev", XN_FLAG_DN_REV, 0},
{"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
{"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
{"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
{"align", XN_FLAG_FN_ALIGN, 0},
{"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
{"space_eq", XN_FLAG_SPC_EQ, 0},
{"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
{"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
{"oneline", XN_FLAG_ONELINE, 0xffffffffL},
{"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
{"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
{NULL, 0, 0}
};
if (!set_multi_opts(flags, arg, ex_tbl))
return 0;
if (*flags != XN_FLAG_COMPAT && (*flags & XN_FLAG_SEP_MASK) == 0)
*flags |= XN_FLAG_SEP_CPLUS_SPC;
return 1;
}
int
set_ext_copy(int *copy_type, const char *arg)
{
if (!strcasecmp(arg, "none"))
*copy_type = EXT_COPY_NONE;
else if (!strcasecmp(arg, "copy"))
*copy_type = EXT_COPY_ADD;
else if (!strcasecmp(arg, "copyall"))
*copy_type = EXT_COPY_ALL;
else
return 0;
return 1;
}
int
copy_extensions(X509 *x, X509_REQ *req, int copy_type)
{
STACK_OF(X509_EXTENSION) *exts = NULL;
X509_EXTENSION *ext, *tmpext;
ASN1_OBJECT *obj;
int i, idx, ret = 0;
if (!x || !req || (copy_type == EXT_COPY_NONE))
return 1;
exts = X509_REQ_get_extensions(req);
for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
ext = sk_X509_EXTENSION_value(exts, i);
obj = X509_EXTENSION_get_object(ext);
idx = X509_get_ext_by_OBJ(x, obj, -1);
/* Does extension exist? */
if (idx != -1) {
/* If normal copy don't override existing extension */
if (copy_type == EXT_COPY_ADD)
continue;
/* Delete all extensions of same type */
do {
tmpext = X509_get_ext(x, idx);
X509_delete_ext(x, idx);
X509_EXTENSION_free(tmpext);
idx = X509_get_ext_by_OBJ(x, obj, -1);
} while (idx != -1);
}
if (!X509_add_ext(x, ext, -1))
goto end;
}
ret = 1;
end:
sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
return ret;
}
static int
set_multi_opts(unsigned long *flags, const char *arg,
const NAME_EX_TBL *in_tbl)
{
STACK_OF(CONF_VALUE) *vals;
CONF_VALUE *val;
int i, ret = 1;
if (!arg)
return 0;
vals = X509V3_parse_list(arg);
for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
val = sk_CONF_VALUE_value(vals, i);
if (!set_table_opts(flags, val->name, in_tbl))
ret = 0;
}
sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
return ret;
}
static int
set_table_opts(unsigned long *flags, const char *arg,
const NAME_EX_TBL *in_tbl)
{
char c;
const NAME_EX_TBL *ptbl;
c = arg[0];
if (c == '-') {
c = 0;
arg++;
} else if (c == '+') {
c = 1;
arg++;
} else
c = 1;
for (ptbl = in_tbl; ptbl->name; ptbl++) {
if (!strcasecmp(arg, ptbl->name)) {
*flags &= ~ptbl->mask;
if (c)
*flags |= ptbl->flag;
else
*flags &= ~ptbl->flag;
return 1;
}
}
return 0;
}
void
print_name(BIO *out, const char *title, X509_NAME *nm, unsigned long lflags)
{
char *buf;
char mline = 0;
int indent = 0;
if (title)
BIO_puts(out, title);
if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
mline = 1;
indent = 4;
}
if (lflags == XN_FLAG_COMPAT) {
buf = X509_NAME_oneline(nm, 0, 0);
BIO_puts(out, buf);
BIO_puts(out, "\n");
free(buf);
} else {
if (mline)
BIO_puts(out, "\n");
X509_NAME_print_ex(out, nm, indent, lflags);
BIO_puts(out, "\n");
}
}
X509_STORE *
setup_verify(BIO *bp, char *CAfile, char *CApath)
{
X509_STORE *store;
X509_LOOKUP *lookup;
if (!(store = X509_STORE_new()))
goto end;
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
if (lookup == NULL)
goto end;
if (CAfile) {
if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
BIO_printf(bp, "Error loading file %s\n", CAfile);
goto end;
}
} else
X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
if (lookup == NULL)
goto end;
if (CApath) {
if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
BIO_printf(bp, "Error loading directory %s\n", CApath);
goto end;
}
} else
X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
ERR_clear_error();
return store;
end:
X509_STORE_free(store);
return NULL;
}
int
load_config(BIO *err, CONF *cnf)
{
static int load_config_called = 0;
if (load_config_called)
return 1;
load_config_called = 1;
if (cnf == NULL)
cnf = config;
if (cnf == NULL)
return 1;
OPENSSL_load_builtin_modules();
if (CONF_modules_load(cnf, NULL, 0) <= 0) {
BIO_printf(err, "Error configuring OpenSSL\n");
ERR_print_errors(err);
return 0;
}
return 1;
}
char *
make_config_name(void)
{
const char *t = X509_get_default_cert_area();
char *p;
if (asprintf(&p, "%s/openssl.cnf", t) == -1)
return NULL;
return p;
}
static unsigned long
index_serial_hash(const OPENSSL_CSTRING *a)
{
const char *n;
n = a[DB_serial];
while (*n == '0')
n++;
return (lh_strhash(n));
}
static int
index_serial_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
{
const char *aa, *bb;
for (aa = a[DB_serial]; *aa == '0'; aa++)
;
for (bb = b[DB_serial]; *bb == '0'; bb++)
;
return (strcmp(aa, bb));
}
static int
index_name_qual(char **a)
{
return (a[0][0] == 'V');
}
static unsigned long
index_name_hash(const OPENSSL_CSTRING *a)
{
return (lh_strhash(a[DB_name]));
}
int
index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
{
return (strcmp(a[DB_name], b[DB_name]));
}
static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
BIGNUM *
load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
{
BIO *in = NULL;
BIGNUM *ret = NULL;
char buf[1024];
ASN1_INTEGER *ai = NULL;
ai = ASN1_INTEGER_new();
if (ai == NULL)
goto err;
if ((in = BIO_new(BIO_s_file())) == NULL) {
ERR_print_errors(bio_err);
goto err;
}
if (BIO_read_filename(in, serialfile) <= 0) {
if (!create) {
perror(serialfile);
goto err;
} else {
ret = BN_new();
if (ret == NULL || !rand_serial(ret, ai))
BIO_printf(bio_err, "Out of memory\n");
}
} else {
if (!a2i_ASN1_INTEGER(in, ai, buf, sizeof buf)) {
BIO_printf(bio_err, "unable to load number from %s\n",
serialfile);
goto err;
}
ret = ASN1_INTEGER_to_BN(ai, NULL);
if (ret == NULL) {
BIO_printf(bio_err,
"error converting number from bin to BIGNUM\n");
goto err;
}
}
if (ret && retai) {
*retai = ai;
ai = NULL;
}
err:
BIO_free(in);
ASN1_INTEGER_free(ai);
return (ret);
}
int
save_serial(char *serialfile, char *suffix, BIGNUM *serial,
ASN1_INTEGER **retai)
{
char serialpath[PATH_MAX];
BIO *out = NULL;
int ret = 0, n;
ASN1_INTEGER *ai = NULL;
if (suffix == NULL)
n = strlcpy(serialpath, serialfile, sizeof serialpath);
else
n = snprintf(serialpath, sizeof serialpath, "%s.%s",
serialfile, suffix);
if (n < 0 || n >= sizeof(serialpath)) {
BIO_printf(bio_err, "serial too long\n");
goto err;
}
out = BIO_new(BIO_s_file());
if (out == NULL) {
ERR_print_errors(bio_err);
goto err;
}
if (BIO_write_filename(out, serialpath) <= 0) {
perror(serialfile);
goto err;
}
if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
BIO_printf(bio_err,
"error converting serial to ASN.1 format\n");
goto err;
}
i2a_ASN1_INTEGER(out, ai);
BIO_puts(out, "\n");
ret = 1;
if (retai) {
*retai = ai;
ai = NULL;
}
err:
BIO_free_all(out);
ASN1_INTEGER_free(ai);
return (ret);
}
int
rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
{
char opath[PATH_MAX], npath[PATH_MAX];
if (snprintf(npath, sizeof npath, "%s.%s", serialfile,
new_suffix) >= sizeof npath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (snprintf(opath, sizeof opath, "%s.%s", serialfile,
old_suffix) >= sizeof opath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (rename(serialfile, opath) == -1 &&
errno != ENOENT && errno != ENOTDIR) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
serialfile, opath);
perror("reason");
goto err;
}
if (rename(npath, serialfile) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
npath, serialfile);
perror("reason");
if (rename(opath, serialfile) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
opath, serialfile);
perror("reason");
}
goto err;
}
return 1;
err:
return 0;
}
int
rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
{
BIGNUM *btmp;
int ret = 0;
if (b)
btmp = b;
else
btmp = BN_new();
if (!btmp)
return 0;
if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
goto error;
if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
goto error;
ret = 1;
error:
if (b != btmp)
BN_free(btmp);
return ret;
}
CA_DB *
load_index(char *dbfile, DB_ATTR *db_attr)
{
CA_DB *retdb = NULL;
TXT_DB *tmpdb = NULL;
BIO *in = BIO_new(BIO_s_file());
CONF *dbattr_conf = NULL;
char attrpath[PATH_MAX];
long errorline = -1;
if (in == NULL) {
ERR_print_errors(bio_err);
goto err;
}
if (BIO_read_filename(in, dbfile) <= 0) {
perror(dbfile);
BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
goto err;
}
if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
goto err;
if (snprintf(attrpath, sizeof attrpath, "%s.attr", dbfile)
>= sizeof attrpath) {
BIO_printf(bio_err, "attr filename too long\n");
goto err;
}
dbattr_conf = NCONF_new(NULL);
if (NCONF_load(dbattr_conf, attrpath, &errorline) <= 0) {
if (errorline > 0) {
BIO_printf(bio_err,
"error on line %ld of db attribute file '%s'\n",
errorline, attrpath);
goto err;
} else {
NCONF_free(dbattr_conf);
dbattr_conf = NULL;
}
}
if ((retdb = malloc(sizeof(CA_DB))) == NULL) {
fprintf(stderr, "Out of memory\n");
goto err;
}
retdb->db = tmpdb;
tmpdb = NULL;
if (db_attr)
retdb->attributes = *db_attr;
else {
retdb->attributes.unique_subject = 1;
}
if (dbattr_conf) {
char *p = NCONF_get_string(dbattr_conf, NULL, "unique_subject");
if (p) {
retdb->attributes.unique_subject = parse_yesno(p, 1);
}
}
err:
NCONF_free(dbattr_conf);
TXT_DB_free(tmpdb);
BIO_free_all(in);
return retdb;
}
int
index_index(CA_DB *db)
{
if (!TXT_DB_create_index(db->db, DB_serial, NULL,
LHASH_HASH_FN(index_serial), LHASH_COMP_FN(index_serial))) {
BIO_printf(bio_err,
"error creating serial number index:(%ld,%ld,%ld)\n",
db->db->error, db->db->arg1, db->db->arg2);
return 0;
}
if (db->attributes.unique_subject &&
!TXT_DB_create_index(db->db, DB_name, index_name_qual,
LHASH_HASH_FN(index_name), LHASH_COMP_FN(index_name))) {
BIO_printf(bio_err, "error creating name index:(%ld,%ld,%ld)\n",
db->db->error, db->db->arg1, db->db->arg2);
return 0;
}
return 1;
}
int
save_index(const char *file, const char *suffix, CA_DB *db)
{
char attrpath[PATH_MAX], dbfile[PATH_MAX];
BIO *out = BIO_new(BIO_s_file());
int j;
if (out == NULL) {
ERR_print_errors(bio_err);
goto err;
}
if (snprintf(attrpath, sizeof attrpath, "%s.attr.%s",
file, suffix) >= sizeof attrpath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (snprintf(dbfile, sizeof dbfile, "%s.%s",
file, suffix) >= sizeof dbfile) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (BIO_write_filename(out, dbfile) <= 0) {
perror(dbfile);
BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
goto err;
}
j = TXT_DB_write(out, db->db);
if (j <= 0)
goto err;
BIO_free(out);
out = BIO_new(BIO_s_file());
if (BIO_write_filename(out, attrpath) <= 0) {
perror(attrpath);
BIO_printf(bio_err, "unable to open '%s'\n", attrpath);
goto err;
}
BIO_printf(out, "unique_subject = %s\n",
db->attributes.unique_subject ? "yes" : "no");
BIO_free(out);
return 1;
err:
return 0;
}
int
rotate_index(const char *dbfile, const char *new_suffix, const char *old_suffix)
{
char attrpath[PATH_MAX], nattrpath[PATH_MAX], oattrpath[PATH_MAX];
char dbpath[PATH_MAX], odbpath[PATH_MAX];
if (snprintf(attrpath, sizeof attrpath, "%s.attr",
dbfile) >= sizeof attrpath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (snprintf(nattrpath, sizeof nattrpath, "%s.attr.%s",
dbfile, new_suffix) >= sizeof nattrpath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (snprintf(oattrpath, sizeof oattrpath, "%s.attr.%s",
dbfile, old_suffix) >= sizeof oattrpath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (snprintf(dbpath, sizeof dbpath, "%s.%s",
dbfile, new_suffix) >= sizeof dbpath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (snprintf(odbpath, sizeof odbpath, "%s.%s",
dbfile, old_suffix) >= sizeof odbpath) {
BIO_printf(bio_err, "file name too long\n");
goto err;
}
if (rename(dbfile, odbpath) == -1 && errno != ENOENT && errno != ENOTDIR) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
dbfile, odbpath);
perror("reason");
goto err;
}
if (rename(dbpath, dbfile) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
dbpath, dbfile);
perror("reason");
if (rename(odbpath, dbfile) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
odbpath, dbfile);
perror("reason");
}
goto err;
}
if (rename(attrpath, oattrpath) == -1 && errno != ENOENT && errno != ENOTDIR) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
attrpath, oattrpath);
perror("reason");
if (rename(dbfile, dbpath) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
dbfile, dbpath);
perror("reason");
}
if (rename(odbpath, dbfile) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
odbpath, dbfile);
perror("reason");
}
goto err;
}
if (rename(nattrpath, attrpath) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
nattrpath, attrpath);
perror("reason");
if (rename(oattrpath, attrpath) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
oattrpath, attrpath);
perror("reason");
}
if (rename(dbfile, dbpath) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
dbfile, dbpath);
perror("reason");
}
if (rename(odbpath, dbfile) == -1) {
BIO_printf(bio_err, "unable to rename %s to %s\n",
odbpath, dbfile);
perror("reason");
}
goto err;
}
return 1;
err:
return 0;
}
void
free_index(CA_DB *db)
{
if (db) {
TXT_DB_free(db->db);
free(db);
}
}
int
parse_yesno(const char *str, int def)
{
int ret = def;
if (str) {
switch (*str) {
case 'f': /* false */
case 'F': /* FALSE */
case 'n': /* no */
case 'N': /* NO */
case '0': /* 0 */
ret = 0;
break;
case 't': /* true */
case 'T': /* TRUE */
case 'y': /* yes */
case 'Y': /* YES */
case '1': /* 1 */
ret = 1;
break;
default:
ret = def;
break;
}
}
return ret;
}
/*
* subject is expected to be in the format /type0=value0/type1=value1/type2=...
* where characters may be escaped by \
*/
X509_NAME *
parse_name(char *subject, long chtype, int multirdn)
{
X509_NAME *name = NULL;
size_t buflen, max_ne;
char **ne_types, **ne_values;
char *buf, *bp, *sp;
int i, nid, ne_num = 0;
int *mval;
/*
* Buffer to copy the types and values into. Due to escaping the
* copy can only become shorter.
*/
buflen = strlen(subject) + 1;
buf = malloc(buflen);
/* Maximum number of name elements. */
max_ne = buflen / 2 + 1;
ne_types = reallocarray(NULL, max_ne, sizeof(char *));
ne_values = reallocarray(NULL, max_ne, sizeof(char *));
mval = reallocarray(NULL, max_ne, sizeof(int));
if (buf == NULL || ne_types == NULL || ne_values == NULL ||
mval == NULL) {
BIO_printf(bio_err, "malloc error\n");
goto error;
}
bp = buf;
sp = subject;
if (*subject != '/') {
BIO_printf(bio_err, "Subject does not start with '/'.\n");
goto error;
}
/* Skip leading '/'. */
sp++;
/* No multivalued RDN by default. */
mval[ne_num] = 0;
while (*sp) {
/* Collect type. */
ne_types[ne_num] = bp;
while (*sp) {
/* is there anything to escape in the type...? */
if (*sp == '\\') {
if (*++sp)
*bp++ = *sp++;
else {
BIO_printf(bio_err, "escape character "
"at end of string\n");
goto error;
}
} else if (*sp == '=') {
sp++;
*bp++ = '\0';
break;
} else
*bp++ = *sp++;
}
if (!*sp) {
BIO_printf(bio_err, "end of string encountered while "
"processing type of subject name element #%d\n",
ne_num);
goto error;
}
ne_values[ne_num] = bp;
while (*sp) {
if (*sp == '\\') {
if (*++sp)
*bp++ = *sp++;
else {
BIO_printf(bio_err, "escape character "
"at end of string\n");
goto error;
}
} else if (*sp == '/') {
sp++;
/* no multivalued RDN by default */
mval[ne_num + 1] = 0;
break;
} else if (*sp == '+' && multirdn) {
/* a not escaped + signals a multivalued RDN */
sp++;
mval[ne_num + 1] = -1;
break;
} else
*bp++ = *sp++;
}
*bp++ = '\0';
ne_num++;
}
if ((name = X509_NAME_new()) == NULL)
goto error;
for (i = 0; i < ne_num; i++) {
if ((nid = OBJ_txt2nid(ne_types[i])) == NID_undef) {
BIO_printf(bio_err,
"Subject Attribute %s has no known NID, skipped\n",
ne_types[i]);
continue;
}
if (!*ne_values[i]) {
BIO_printf(bio_err, "No value provided for Subject "
"Attribute %s, skipped\n", ne_types[i]);
continue;
}
if (!X509_NAME_add_entry_by_NID(name, nid, chtype,
(unsigned char *) ne_values[i], -1, -1, mval[i]))
goto error;
}
goto done;
error:
X509_NAME_free(name);
name = NULL;
done:
free(ne_values);
free(ne_types);
free(mval);
free(buf);
return name;
}
int
args_verify(char ***pargs, int *pargc, int *badarg, BIO *err,
X509_VERIFY_PARAM **pm)
{
ASN1_OBJECT *otmp = NULL;
unsigned long flags = 0;
int i;
int purpose = 0, depth = -1;
char **oldargs = *pargs;
char *arg = **pargs, *argn = (*pargs)[1];
time_t at_time = 0;
const char *errstr = NULL;
if (!strcmp(arg, "-policy")) {
if (!argn)
*badarg = 1;
else {
otmp = OBJ_txt2obj(argn, 0);
if (!otmp) {
BIO_printf(err, "Invalid Policy \"%s\"\n",
argn);
*badarg = 1;
}
}
(*pargs)++;
} else if (strcmp(arg, "-purpose") == 0) {
const X509_PURPOSE *xptmp;
if (!argn)
*badarg = 1;
else {
i = X509_PURPOSE_get_by_sname(argn);
if (i < 0) {
BIO_printf(err, "unrecognized purpose\n");
*badarg = 1;
} else {
xptmp = X509_PURPOSE_get0(i);
purpose = X509_PURPOSE_get_id(xptmp);
}
}
(*pargs)++;
} else if (strcmp(arg, "-verify_depth") == 0) {
if (!argn)
*badarg = 1;
else {
depth = strtonum(argn, 1, INT_MAX, &errstr);
if (errstr) {
BIO_printf(err, "invalid depth %s: %s\n",
argn, errstr);
*badarg = 1;
}
}
(*pargs)++;
} else if (strcmp(arg, "-attime") == 0) {
if (!argn)
*badarg = 1;
else {
long long timestamp;
/*
* interpret the -attime argument as seconds since
* Epoch
*/
if (sscanf(argn, "%lli", ×tamp) != 1) {
BIO_printf(bio_err,
"Error parsing timestamp %s\n",
argn);
*badarg = 1;
}
/* XXX 2038 truncation */
at_time = (time_t) timestamp;
}
(*pargs)++;
} else if (!strcmp(arg, "-ignore_critical"))
flags |= X509_V_FLAG_IGNORE_CRITICAL;
else if (!strcmp(arg, "-issuer_checks"))
flags |= X509_V_FLAG_CB_ISSUER_CHECK;
else if (!strcmp(arg, "-crl_check"))
flags |= X509_V_FLAG_CRL_CHECK;
else if (!strcmp(arg, "-crl_check_all"))
flags |= X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL;
else if (!strcmp(arg, "-policy_check"))
flags |= X509_V_FLAG_POLICY_CHECK;
else if (!strcmp(arg, "-explicit_policy"))
flags |= X509_V_FLAG_EXPLICIT_POLICY;
else if (!strcmp(arg, "-legacy_verify"))
flags |= X509_V_FLAG_LEGACY_VERIFY;
else if (!strcmp(arg, "-inhibit_any"))
flags |= X509_V_FLAG_INHIBIT_ANY;
else if (!strcmp(arg, "-inhibit_map"))
flags |= X509_V_FLAG_INHIBIT_MAP;
else if (!strcmp(arg, "-x509_strict"))
flags |= X509_V_FLAG_X509_STRICT;
else if (!strcmp(arg, "-extended_crl"))
flags |= X509_V_FLAG_EXTENDED_CRL_SUPPORT;
else if (!strcmp(arg, "-use_deltas"))
flags |= X509_V_FLAG_USE_DELTAS;
else if (!strcmp(arg, "-policy_print"))
flags |= X509_V_FLAG_NOTIFY_POLICY;
else if (!strcmp(arg, "-check_ss_sig"))
flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
else
return 0;
if (*badarg) {
X509_VERIFY_PARAM_free(*pm);
*pm = NULL;
goto end;
}
if (!*pm && !(*pm = X509_VERIFY_PARAM_new())) {
*badarg = 1;
goto end;
}
if (otmp) {
X509_VERIFY_PARAM_add0_policy(*pm, otmp);
otmp = NULL;
}
if (flags)
X509_VERIFY_PARAM_set_flags(*pm, flags);
if (purpose)
X509_VERIFY_PARAM_set_purpose(*pm, purpose);
if (depth >= 0)
X509_VERIFY_PARAM_set_depth(*pm, depth);
if (at_time)
X509_VERIFY_PARAM_set_time(*pm, at_time);
end:
(*pargs)++;
if (pargc)
*pargc -= *pargs - oldargs;
ASN1_OBJECT_free(otmp);
return 1;
}
/* Read whole contents of a BIO into an allocated memory buffer and
* return it.
*/
int
bio_to_mem(unsigned char **out, int maxlen, BIO *in)
{
BIO *mem;
int len, ret;
unsigned char tbuf[1024];
mem = BIO_new(BIO_s_mem());
if (!mem)
return -1;
for (;;) {
if ((maxlen != -1) && maxlen < 1024)
len = maxlen;
else
len = 1024;
len = BIO_read(in, tbuf, len);
if (len <= 0)
break;
if (BIO_write(mem, tbuf, len) != len) {
BIO_free(mem);
return -1;
}
maxlen -= len;
if (maxlen == 0)
break;
}
ret = BIO_get_mem_data(mem, (char **) out);
BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
BIO_free(mem);
return ret;
}
int
pkey_ctrl_string(EVP_PKEY_CTX *ctx, char *value)
{
int rv;
char *stmp, *vtmp = NULL;
if (value == NULL)
return -1;
stmp = strdup(value);
if (!stmp)
return -1;
vtmp = strchr(stmp, ':');
if (vtmp) {
*vtmp = 0;
vtmp++;
}
rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
free(stmp);
return rv;
}
/*
* next_protos_parse parses a comma separated list of strings into a string
* in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
* outlen: (output) set to the length of the resulting buffer on success.
* err: (maybe NULL) on failure, an error message line is written to this BIO.
* in: a NUL termianted string like "abc,def,ghi"
*
* returns: a malloced buffer or NULL on failure.
*/
unsigned char *
next_protos_parse(unsigned short *outlen, const char *in)
{
size_t len;
unsigned char *out;
size_t i, start = 0;
len = strlen(in);
if (len >= 65535)
return NULL;
out = malloc(strlen(in) + 1);
if (!out)
return NULL;
for (i = 0; i <= len; ++i) {
if (i == len || in[i] == ',') {
if (i - start > 255) {
free(out);
return NULL;
}
out[start] = i - start;
start = i + 1;
} else
out[i + 1] = in[i];
}
*outlen = len + 1;
return out;
}
int
app_isdir(const char *name)
{
struct stat st;
if (stat(name, &st) == 0)
return S_ISDIR(st.st_mode);
return -1;
}
#define OPTION_WIDTH 18
void
options_usage(const struct option *opts)
{
const char *p, *q;
char optstr[32];
int i;
for (i = 0; opts[i].name != NULL; i++) {
if (opts[i].desc == NULL)
continue;
snprintf(optstr, sizeof(optstr), "-%s %s", opts[i].name,
(opts[i].argname != NULL) ? opts[i].argname : "");
fprintf(stderr, " %-*s", OPTION_WIDTH, optstr);
if (strlen(optstr) > OPTION_WIDTH)
fprintf(stderr, "\n %-*s", OPTION_WIDTH, "");
p = opts[i].desc;
while ((q = strchr(p, '\n')) != NULL) {
fprintf(stderr, " %.*s", (int)(q - p), p);
fprintf(stderr, "\n %-*s", OPTION_WIDTH, "");
p = q + 1;
}
fprintf(stderr, " %s\n", p);
}
}
int
options_parse(int argc, char **argv, const struct option *opts, char **unnamed,
int *argsused)
{
const char *errstr;
const struct option *opt;
long long val;
char *arg, *p;
int fmt, used;
int ord = 0;
int i, j;
if (unnamed != NULL)
*unnamed = NULL;
for (i = 1; i < argc; i++) {
p = arg = argv[i];
/* Single unnamed argument (without leading hyphen). */
if (*p++ != '-') {
if (argsused != NULL)
goto done;
if (unnamed == NULL)
goto unknown;
if (*unnamed != NULL)
goto toomany;
*unnamed = arg;
continue;
}
/* End of named options (single hyphen). */
if (*p == '\0') {
if (++i >= argc)
goto done;
if (argsused != NULL)
goto done;
if (unnamed != NULL && i == argc - 1) {
if (*unnamed != NULL)
goto toomany;
*unnamed = argv[i];
continue;
}
goto unknown;
}
/* See if there is a matching option... */
for (j = 0; opts[j].name != NULL; j++) {
if (strcmp(p, opts[j].name) == 0)
break;
}
opt = &opts[j];
if (opt->name == NULL && opt->type == 0)
goto unknown;
if (opt->type == OPTION_ARG ||
opt->type == OPTION_ARG_FORMAT ||
opt->type == OPTION_ARG_FUNC ||
opt->type == OPTION_ARG_INT ||
opt->type == OPTION_ARG_LONG ||
opt->type == OPTION_ARG_TIME) {
if (++i >= argc) {
fprintf(stderr, "missing %s argument for -%s\n",
opt->argname, opt->name);
return (1);
}
}
switch (opt->type) {
case OPTION_ARG:
*opt->opt.arg = argv[i];
break;
case OPTION_ARGV_FUNC:
if (opt->opt.argvfunc(argc - i, &argv[i], &used) != 0)
return (1);
i += used - 1;
break;
case OPTION_ARG_FORMAT:
fmt = str2fmt(argv[i]);
if (fmt == FORMAT_UNDEF) {
fprintf(stderr, "unknown %s '%s' for -%s\n",
opt->argname, argv[i], opt->name);
return (1);
}
*opt->opt.value = fmt;
break;
case OPTION_ARG_FUNC:
if (opt->opt.argfunc(argv[i]) != 0)
return (1);
break;
case OPTION_ARG_INT:
val = strtonum(argv[i], 0, INT_MAX, &errstr);
if (errstr != NULL) {
fprintf(stderr, "%s %s argument for -%s\n",
errstr, opt->argname, opt->name);
return (1);
}
*opt->opt.value = (int)val;
break;
case OPTION_ARG_LONG:
val = strtonum(argv[i], 0, LONG_MAX, &errstr);
if (errstr != NULL) {
fprintf(stderr, "%s %s argument for -%s\n",
errstr, opt->argname, opt->name);
return (1);
}
*opt->opt.lvalue = (long)val;
break;
case OPTION_ARG_TIME:
val = strtonum(argv[i], 0, LLONG_MAX, &errstr);
if (errstr != NULL) {
fprintf(stderr, "%s %s argument for -%s\n",
errstr, opt->argname, opt->name);
return (1);
}
*opt->opt.tvalue = val;
break;
case OPTION_DISCARD:
break;
case OPTION_FUNC:
if (opt->opt.func() != 0)
return (1);
break;
case OPTION_FLAG:
*opt->opt.flag = 1;
break;
case OPTION_FLAG_ORD:
*opt->opt.flag = ++ord;
break;
case OPTION_VALUE:
*opt->opt.value = opt->value;
break;
case OPTION_VALUE_AND:
*opt->opt.value &= opt->value;
break;
case OPTION_VALUE_OR:
*opt->opt.value |= opt->value;
break;
case OPTION_UL_VALUE_OR:
*opt->opt.ulvalue |= opt->ulvalue;
break;
case OPTION_ORDER:
*opt->opt.order = ++(*opt->order);
break;
default:
fprintf(stderr, "option %s - unknown type %i\n",
opt->name, opt->type);
return (1);
}
}
done:
if (argsused != NULL)
*argsused = i;
return (0);
toomany:
fprintf(stderr, "too many arguments\n");
return (1);
unknown:
fprintf(stderr, "unknown option '%s'\n", arg);
return (1);
}
void
show_cipher(const OBJ_NAME *name, void *arg)
{
int *n = arg;
if (!islower((unsigned char)*name->name))
return;
fprintf(stderr, " -%-24s%s", name->name, (++*n % 3 != 0 ? "" : "\n"));
}
int
pkey_check(BIO *out, EVP_PKEY *pkey, int (check_fn)(EVP_PKEY_CTX *),
const char *desc)
{
EVP_PKEY_CTX *ctx;
if ((ctx = EVP_PKEY_CTX_new(pkey, NULL)) == NULL) {
ERR_print_errors(bio_err);
return 0;
}
if (check_fn(ctx) == 1) {
BIO_printf(out, "%s valid\n", desc);
} else {
unsigned long err;
BIO_printf(out, "%s invalid\n", desc);
while ((err = ERR_get_error()) != 0)
BIO_printf(out, "Detailed error: %s\n",
ERR_reason_error_string(err));
}
EVP_PKEY_CTX_free(ctx);
return 1;
}
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