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openssl/apps/lib/apps.c

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/*
* Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (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
*/
#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
/*
* On VMS, you need to define this to get the declaration of fileno(). The
* value 2 is to make sure no function defined in POSIX-2 is left undefined.
*/
# define _POSIX_C_SOURCE 2
#endif
#ifndef OPENSSL_NO_ENGINE
/* We need to use some deprecated APIs */
# define OPENSSL_SUPPRESS_DEPRECATED
# include <openssl/engine.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#ifndef OPENSSL_NO_POSIX_IO
# include <sys/stat.h>
# include <fcntl.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/http.h>
#include <openssl/pem.h>
#include <openssl/store.h>
#include <openssl/pkcs12.h>
#include <openssl/ui.h>
#include <openssl/safestack.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
#include <openssl/bn.h>
#include <openssl/ssl.h>
#include <openssl/core_names.h>
#include "s_apps.h"
#include "apps.h"
#include "internal/sockets.h" /* for openssl_fdset() */
#include "internal/e_os.h"
#ifdef _WIN32
static int WIN32_rename(const char *from, const char *to);
# define rename(from, to) WIN32_rename((from), (to))
#endif
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
# include <conio.h>
#endif
#if defined(OPENSSL_SYS_MSDOS) && !defined(_WIN32) || defined(__BORLANDC__)
# define _kbhit kbhit
#endif
static BIO *bio_open_default_(const char *filename, char mode, int format,
int quiet);
#define PASS_SOURCE_SIZE_MAX 4
DEFINE_STACK_OF(CONF)
typedef struct {
const char *name;
unsigned long flag;
unsigned long mask;
} NAME_EX_TBL;
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 app_init(long mesgwin);
int chopup_args(ARGS *arg, char *buf)
{
int quoted;
char c = '\0', *p = NULL;
arg->argc = 0;
if (arg->size == 0) {
arg->size = 20;
arg->argv = app_malloc(sizeof(*arg->argv) * arg->size, "argv space");
}
for (p = buf;;) {
/* Skip whitespace. */
while (*p && isspace(_UC(*p)))
p++;
if (*p == '\0')
break;
/* The start of something good :-) */
if (arg->argc >= arg->size) {
char **tmp;
arg->size += 20;
tmp = OPENSSL_realloc_array(arg->argv,
arg->size, sizeof(*arg->argv));
if (tmp == NULL)
return 0;
arg->argv = tmp;
}
quoted = *p == '\'' || *p == '"';
if (quoted)
c = *p++;
arg->argv[arg->argc++] = p;
/* now look for the end of this */
if (quoted) {
while (*p && *p != c)
p++;
*p++ = '\0';
} else {
while (*p && !isspace(_UC(*p)))
p++;
if (*p)
*p++ = '\0';
}
}
arg->argv[arg->argc] = NULL;
return 1;
}
#ifndef APP_INIT
int app_init(long mesgwin)
{
return 1;
}
#endif
int ctx_set_verify_locations(SSL_CTX *ctx,
const char *CAfile, int noCAfile,
const char *CApath, int noCApath,
const char *CAstore, int noCAstore)
{
if (CAfile == NULL && CApath == NULL && CAstore == NULL) {
if (!noCAfile && SSL_CTX_set_default_verify_file(ctx) <= 0)
return 0;
if (!noCApath && SSL_CTX_set_default_verify_dir(ctx) <= 0)
return 0;
if (!noCAstore && SSL_CTX_set_default_verify_store(ctx) <= 0)
return 0;
return 1;
}
if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
return 0;
if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
return 0;
if (CAstore != NULL && !SSL_CTX_load_verify_store(ctx, CAstore))
return 0;
return 1;
}
#ifndef OPENSSL_NO_CT
int ctx_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
{
if (path == NULL)
return SSL_CTX_set_default_ctlog_list_file(ctx);
return SSL_CTX_set_ctlog_list_file(ctx, path);
}
#endif
static unsigned long nmflag = 0;
static char nmflag_set = 0;
int set_nameopt(const char *arg)
{
int ret = set_name_ex(&nmflag, arg);
if (ret)
nmflag_set = 1;
return ret;
}
unsigned long get_nameopt(void)
{
return
nmflag_set ? nmflag : XN_FLAG_SEP_CPLUS_SPC | XN_FLAG_FN_SN
| ASN1_STRFLGS_ESC_CTRL
| ASN1_STRFLGS_UTF8_CONVERT
| ASN1_STRFLGS_DUMP_UNKNOWN
| ASN1_STRFLGS_DUMP_DER;
}
void dump_cert_text(BIO *out, X509 *x)
{
print_name(out, "subject=", X509_get_subject_name(x));
print_name(out, "issuer=", X509_get_issuer_name(x));
}
int wrap_password_callback(char *buf, int bufsiz, int verify, void *userdata)
{
return password_callback(buf, bufsiz, verify, (PW_CB_DATA *)userdata);
}
static char *app_get_pass(const char *arg, int keepbio);
char *get_passwd(const char *pass, const char *desc)
{
char *result = NULL;
if (desc == NULL)
desc = "<unknown>";
if (!app_passwd(pass, NULL, &result, NULL))
BIO_printf(bio_err, "Error getting password for %s\n", desc);
if (pass != NULL && result == NULL) {
BIO_printf(bio_err,
"Trying plain input string (better precede with 'pass:')\n");
result = OPENSSL_strdup(pass);
if (result == NULL)
BIO_printf(bio_err,
"Out of memory getting password for %s\n", desc);
}
return result;
}
int app_passwd(const char *arg1, const char *arg2, char **pass1, char **pass2)
{
int same = arg1 != NULL && arg2 != NULL && strcmp(arg1, arg2) == 0;
if (arg1 != NULL) {
*pass1 = app_get_pass(arg1, same);
if (*pass1 == NULL)
return 0;
} else if (pass1 != NULL) {
*pass1 = NULL;
}
if (arg2 != NULL) {
*pass2 = app_get_pass(arg2, same ? 2 : 0);
if (*pass2 == NULL)
return 0;
} else if (pass2 != NULL) {
*pass2 = NULL;
}
return 1;
}
static char *app_get_pass(const char *arg, int keepbio)
{
static BIO *pwdbio = NULL;
char *tmp, tpass[APP_PASS_LEN];
int i;
/* PASS_SOURCE_SIZE_MAX = max number of chars before ':' in below strings */
if (CHECK_AND_SKIP_PREFIX(arg, "pass:"))
return OPENSSL_strdup(arg);
if (CHECK_AND_SKIP_PREFIX(arg, "env:")) {
tmp = getenv(arg);
if (tmp == NULL) {
BIO_printf(bio_err, "No environment variable %s\n", arg);
return NULL;
}
return OPENSSL_strdup(tmp);
}
if (!keepbio || pwdbio == NULL) {
if (CHECK_AND_SKIP_PREFIX(arg, "file:")) {
pwdbio = BIO_new_file(arg, "r");
if (pwdbio == NULL) {
BIO_printf(bio_err, "Can't open file %s\n", arg);
return NULL;
}
#if !defined(_WIN32)
/*
* Under _WIN32, which covers even Win64 and CE, file
* descriptors referenced by BIO_s_fd are not inherited
* by child process and therefore below is not an option.
* It could have been an option if bss_fd.c was operating
* on real Windows descriptors, such as those obtained
* with CreateFile.
*/
} else if (CHECK_AND_SKIP_PREFIX(arg, "fd:")) {
BIO *btmp;
i = atoi(arg);
if (i >= 0)
pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
if ((i < 0) || pwdbio == NULL) {
BIO_printf(bio_err, "Can't access file descriptor %s\n", arg);
return NULL;
}
/*
* Can't do BIO_gets on an fd BIO so add a buffering BIO
*/
btmp = BIO_new(BIO_f_buffer());
if (btmp == NULL) {
BIO_free_all(pwdbio);
pwdbio = NULL;
BIO_printf(bio_err, "Out of memory\n");
return NULL;
}
pwdbio = BIO_push(btmp, pwdbio);
#endif
} else if (strcmp(arg, "stdin") == 0) {
unbuffer(stdin);
pwdbio = dup_bio_in(FORMAT_TEXT);
if (pwdbio == NULL) {
BIO_printf(bio_err, "Can't open BIO for stdin\n");
return NULL;
}
} else {
/* argument syntax error; do not reveal too much about arg */
tmp = strchr(arg, ':');
if (tmp == NULL || tmp - arg > PASS_SOURCE_SIZE_MAX)
BIO_printf(bio_err,
"Invalid password argument, missing ':' within the first %d chars\n",
PASS_SOURCE_SIZE_MAX + 1);
else
BIO_printf(bio_err,
"Invalid password argument, starting with \"%.*s\"\n",
(int)(tmp - arg + 1), 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(bio_err, "Error reading password from BIO\n");
return NULL;
}
tmp = strchr(tpass, '\n');
if (tmp != NULL)
*tmp = 0;
return OPENSSL_strdup(tpass);
}
char *app_conf_try_string(const CONF *conf, const char *group, const char *name)
{
char *res;
ERR_set_mark();
res = NCONF_get_string(conf, group, name);
if (res == NULL)
ERR_pop_to_mark();
else
ERR_clear_last_mark();
return res;
}
int app_conf_try_number(const CONF *conf, const char *group, const char *name,
long *result)
{
int ok;
ERR_set_mark();
ok = NCONF_get_number(conf, group, name, result);
if (!ok)
ERR_pop_to_mark();
else
ERR_clear_last_mark();
return ok;
}
CONF *app_load_config_bio(BIO *in, const char *filename)
{
long errorline = -1;
CONF *conf;
int i;
conf = NCONF_new_ex(app_get0_libctx(), NULL);
i = NCONF_load_bio(conf, in, &errorline);
if (i > 0)
return conf;
if (errorline <= 0) {
BIO_printf(bio_err, "%s: Can't load ", opt_getprog());
} else {
BIO_printf(bio_err, "%s: Error on line %ld of ", opt_getprog(),
errorline);
}
if (filename != NULL)
BIO_printf(bio_err, "config file \"%s\"\n", filename);
else
BIO_printf(bio_err, "config input");
NCONF_free(conf);
return NULL;
}
CONF *app_load_config_verbose(const char *filename, int verbose)
{
if (verbose) {
if (*filename == '\0')
BIO_printf(bio_err, "No configuration used\n");
else
BIO_printf(bio_err, "Using configuration from %s\n", filename);
}
return app_load_config_internal(filename, 0);
}
CONF *app_load_config_internal(const char *filename, int quiet)
{
BIO *in;
CONF *conf;
if (filename == NULL || *filename != '\0') {
if ((in = bio_open_default_(filename, 'r', FORMAT_TEXT, quiet)) == NULL)
return NULL;
conf = app_load_config_bio(in, filename);
BIO_free(in);
} else {
/* Return empty config if filename is empty string. */
conf = NCONF_new_ex(app_get0_libctx(), NULL);
}
return conf;
}
int app_load_modules(const CONF *config)
{
CONF *to_free = NULL;
if (config == NULL)
config = to_free = app_load_config_quiet(default_config_file);
if (config == NULL)
return 1;
if (CONF_modules_load(config, NULL, 0) <= 0) {
BIO_printf(bio_err, "Error configuring OpenSSL modules\n");
ERR_print_errors(bio_err);
NCONF_free(to_free);
return 0;
}
NCONF_free(to_free);
return 1;
}
int add_oid_section(CONF *conf)
{
char *p;
STACK_OF(CONF_VALUE) *sktmp;
CONF_VALUE *cnf;
int i;
if ((p = app_conf_try_string(conf, NULL, "oid_section")) == NULL)
return 1;
if ((sktmp = NCONF_get_section(conf, p)) == NULL) {
BIO_printf(bio_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(bio_err, "problem creating object %s=%s\n",
cnf->name, cnf->value);
return 0;
}
}
return 1;
}
CONF *app_load_config_modules(const char *configfile)
{
CONF *conf = NULL;
if (configfile != NULL) {
if ((conf = app_load_config_verbose(configfile, 1)) == NULL)
return NULL;
if (configfile != default_config_file && !app_load_modules(conf)) {
NCONF_free(conf);
conf = NULL;
}
}
return conf;
}
#define IS_HTTP(uri) ((uri) != NULL && HAS_PREFIX(uri, OSSL_HTTP_PREFIX))
#define IS_HTTPS(uri) ((uri) != NULL && HAS_PREFIX(uri, OSSL_HTTPS_PREFIX))
X509 *load_cert_pass(const char *uri, int format, int maybe_stdin,
const char *pass, const char *desc)
{
X509 *cert = NULL;
if (desc == NULL)
desc = "certificate";
if (IS_HTTPS(uri)) {
BIO_printf(bio_err, "Loading %s over HTTPS is unsupported\n", desc);
} else if (IS_HTTP(uri)) {
cert = X509_load_http(uri, NULL, NULL, 0 /* timeout */);
if (cert == NULL) {
ERR_print_errors(bio_err);
BIO_printf(bio_err, "Unable to load %s from %s\n", desc, uri);
}
} else {
(void)load_key_certs_crls(uri, format, maybe_stdin, pass, desc, 0,
NULL, NULL, NULL, &cert, NULL, NULL, NULL);
}
return cert;
}
X509_CRL *load_crl(const char *uri, int format, int maybe_stdin,
const char *desc)
{
X509_CRL *crl = NULL;
if (desc == NULL)
desc = "CRL";
if (IS_HTTPS(uri)) {
BIO_printf(bio_err, "Loading %s over HTTPS is unsupported\n", desc);
} else if (IS_HTTP(uri)) {
crl = X509_CRL_load_http(uri, NULL, NULL, 0 /* timeout */);
if (crl == NULL) {
ERR_print_errors(bio_err);
BIO_printf(bio_err, "Unable to load %s from %s\n", desc, uri);
}
} else {
(void)load_key_certs_crls(uri, format, maybe_stdin, NULL, desc, 0,
NULL, NULL, NULL, NULL, NULL, &crl, NULL);
}
return crl;
}
/* Could be simplified if OSSL_STORE supported CSRs, see FR #15725 */
X509_REQ *load_csr(const char *file, int format, const char *desc)
{
X509_REQ *req = NULL;
BIO *in;
if (format == FORMAT_UNDEF)
format = FORMAT_PEM;
in = bio_open_default(file, 'r', format);
if (in == NULL)
goto end;
if (format == FORMAT_ASN1)
req = d2i_X509_REQ_bio(in, NULL);
else if (format == FORMAT_PEM)
req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
else
print_format_error(format, OPT_FMT_PEMDER);
end:
if (req == NULL) {
ERR_print_errors(bio_err);
if (desc != NULL)
BIO_printf(bio_err, "Unable to load %s\n", desc);
}
BIO_free(in);
return req;
}
/* Better extend OSSL_STORE to support CSRs, see FR #15725 */
X509_REQ *load_csr_autofmt(const char *infile, int format,
STACK_OF(OPENSSL_STRING) *vfyopts, const char *desc)
{
X509_REQ *csr;
if (format != FORMAT_UNDEF) {
csr = load_csr(infile, format, desc);
} else { /* try PEM, then DER */
BIO *bio_bak = bio_err;
bio_err = NULL; /* do not show errors on more than one try */
csr = load_csr(infile, FORMAT_PEM, NULL /* desc */);
bio_err = bio_bak;
if (csr == NULL) {
ERR_clear_error();
csr = load_csr(infile, FORMAT_ASN1, NULL /* desc */);
}
if (csr == NULL) {
BIO_printf(bio_err, "error: unable to load %s from file '%s'\n",
desc, infile);
}
}
if (csr != NULL) {
EVP_PKEY *pkey = X509_REQ_get0_pubkey(csr);
int ret = do_X509_REQ_verify(csr, pkey, vfyopts);
if (pkey == NULL || ret < 0)
BIO_puts(bio_err, "Warning: error while verifying CSR self-signature\n");
else if (ret == 0)
BIO_puts(bio_err, "Warning: CSR self-signature does not match the contents\n");
return csr;
}
return csr;
}
void cleanse(char *str)
{
if (str != NULL)
OPENSSL_cleanse(str, strlen(str));
}
void clear_free(char *str)
{
if (str != NULL)
OPENSSL_clear_free(str, strlen(str));
}
EVP_PKEY *load_key(const char *uri, int format, int may_stdin,
const char *pass, ENGINE *e, const char *desc)
{
EVP_PKEY *pkey = NULL;
char *allocated_uri = NULL;
if (desc == NULL)
desc = "private key";
if (format == FORMAT_ENGINE)
uri = allocated_uri = make_engine_uri(e, uri, desc);
(void)load_key_certs_crls(uri, format, may_stdin, pass, desc, 0,
&pkey, NULL, NULL, NULL, NULL, NULL, NULL);
OPENSSL_free(allocated_uri);
return pkey;
}
/* first try reading public key, on failure resort to loading private key */
EVP_PKEY *load_pubkey(const char *uri, int format, int maybe_stdin,
const char *pass, ENGINE *e, const char *desc)
{
EVP_PKEY *pkey = NULL;
char *allocated_uri = NULL;
if (desc == NULL)
desc = "public key";
if (format == FORMAT_ENGINE)
uri = allocated_uri = make_engine_uri(e, uri, desc);
(void)load_key_certs_crls(uri, format, maybe_stdin, pass, desc, 1,
NULL, &pkey, NULL, NULL, NULL, NULL, NULL);
if (pkey == NULL)
(void)load_key_certs_crls(uri, format, maybe_stdin, pass, desc, 0,
&pkey, NULL, NULL, NULL, NULL, NULL, NULL);
OPENSSL_free(allocated_uri);
return pkey;
}
EVP_PKEY *load_keyparams_suppress(const char *uri, int format, int maybe_stdin,
const char *keytype, const char *desc,
int suppress_decode_errors)
{
EVP_PKEY *params = NULL;
if (desc == NULL)
desc = "key parameters";
(void)load_key_certs_crls(uri, format, maybe_stdin, NULL, desc,
suppress_decode_errors,
NULL, NULL, &params, NULL, NULL, NULL, NULL);
if (params != NULL && keytype != NULL && !EVP_PKEY_is_a(params, keytype)) {
ERR_print_errors(bio_err);
BIO_printf(bio_err,
"Unable to load %s from %s (unexpected parameters type)\n",
desc, uri);
EVP_PKEY_free(params);
params = NULL;
}
return params;
}
EVP_PKEY *load_keyparams(const char *uri, int format, int maybe_stdin,
const char *keytype, const char *desc)
{
return load_keyparams_suppress(uri, format, maybe_stdin, keytype, desc, 0);
}
void app_bail_out(char *fmt, ...)
{
va_list args;
va_start(args, fmt);
BIO_vprintf(bio_err, fmt, args);
va_end(args);
ERR_print_errors(bio_err);
exit(EXIT_FAILURE);
}
void *app_malloc(size_t sz, const char *what)
{
void *vp = OPENSSL_malloc(sz);
if (vp == NULL)
app_bail_out("%s: Could not allocate %zu bytes for %s\n",
opt_getprog(), sz, what);
return vp;
}
char *next_item(char *opt) /* in list separated by comma and/or space */
{
/* advance to separator (comma or whitespace), if any */
while (*opt != ',' && !isspace(_UC(*opt)) && *opt != '\0')
opt++;
if (*opt != '\0') {
/* terminate current item */
*opt++ = '\0';
/* skip over any whitespace after separator */
while (isspace(_UC(*opt)))
opt++;
}
return *opt == '\0' ? NULL : opt; /* NULL indicates end of input */
}
static void warn_cert_msg(const char *uri, X509 *cert, const char *msg)
{
char *subj = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
BIO_printf(bio_err, "Warning: certificate from '%s' with subject '%s' %s\n",
uri, subj, msg);
OPENSSL_free(subj);
}
static void warn_cert(const char *uri, X509 *cert, int warn_EE,
X509_VERIFY_PARAM *vpm)
{
uint32_t ex_flags = X509_get_extension_flags(cert);
int res = X509_cmp_timeframe(vpm, X509_get0_notBefore(cert),
X509_get0_notAfter(cert));
if (res != 0)
warn_cert_msg(uri, cert, res > 0 ? "has expired" : "not yet valid");
if (warn_EE && (ex_flags & EXFLAG_V1) == 0 && (ex_flags & EXFLAG_CA) == 0)
warn_cert_msg(uri, cert, "is not a CA cert");
}
static void warn_certs(const char *uri, STACK_OF(X509) *certs, int warn_EE,
X509_VERIFY_PARAM *vpm)
{
int i;
for (i = 0; i < sk_X509_num(certs); i++)
warn_cert(uri, sk_X509_value(certs, i), warn_EE, vpm);
}
int load_cert_certs(const char *uri,
X509 **pcert, STACK_OF(X509) **pcerts,
int exclude_http, const char *pass, const char *desc,
X509_VERIFY_PARAM *vpm)
{
int ret = 0;
char *pass_string;
if (desc == NULL)
desc = pcerts == NULL ? "certificate" : "certificates";
if (exclude_http && (HAS_CASE_PREFIX(uri, "http://")
|| HAS_CASE_PREFIX(uri, "https://"))) {
BIO_printf(bio_err, "error: HTTP retrieval not allowed for %s\n", desc);
return ret;
}
pass_string = get_passwd(pass, desc);
ret = load_key_certs_crls(uri, FORMAT_UNDEF, 0, pass_string, desc, 0,
NULL, NULL, NULL, pcert, pcerts, NULL, NULL);
clear_free(pass_string);
if (ret) {
if (pcert != NULL)
warn_cert(uri, *pcert, 0, vpm);
if (pcerts != NULL)
warn_certs(uri, *pcerts, 1, vpm);
} else {
if (pcerts != NULL) {
OSSL_STACK_OF_X509_free(*pcerts);
*pcerts = NULL;
}
}
return ret;
}
STACK_OF(X509) *load_certs_multifile(char *files, const char *pass,
const char *desc, X509_VERIFY_PARAM *vpm)
{
STACK_OF(X509) *certs = NULL;
STACK_OF(X509) *result = sk_X509_new_null();
if (files == NULL)
goto err;
if (result == NULL)
goto oom;
while (files != NULL) {
char *next = next_item(files);
if (!load_cert_certs(files, NULL, &certs, 0, pass, desc, vpm))
goto err;
if (!X509_add_certs(result, certs,
X509_ADD_FLAG_UP_REF | X509_ADD_FLAG_NO_DUP))
goto oom;
OSSL_STACK_OF_X509_free(certs);
certs = NULL;
files = next;
}
return result;
oom:
BIO_printf(bio_err, "out of memory\n");
err:
OSSL_STACK_OF_X509_free(certs);
OSSL_STACK_OF_X509_free(result);
return NULL;
}
static X509_STORE *sk_X509_to_store(X509_STORE *store /* may be NULL */,
const STACK_OF(X509) *certs /* may NULL */)
{
int i;
if (store == NULL)
store = X509_STORE_new();
if (store == NULL)
return NULL;
for (i = 0; i < sk_X509_num(certs); i++) {
if (!X509_STORE_add_cert(store, sk_X509_value(certs, i))) {
X509_STORE_free(store);
return NULL;
}
}
return store;
}
/*
* Create cert store structure with certificates read from given file(s).
* Returns pointer to created X509_STORE on success, NULL on error.
*/
X509_STORE *load_certstore(char *input, const char *pass, const char *desc,
X509_VERIFY_PARAM *vpm)
{
X509_STORE *store = NULL;
STACK_OF(X509) *certs = NULL;
while (input != NULL) {
char *next = next_item(input);
int ok;
if (!load_cert_certs(input, NULL, &certs, 1, pass, desc, vpm)) {
X509_STORE_free(store);
return NULL;
}
ok = (store = sk_X509_to_store(store, certs)) != NULL;
OSSL_STACK_OF_X509_free(certs);
certs = NULL;
if (!ok)
return NULL;
input = next;
}
return store;
}
/*
* Initialize or extend, if *certs != NULL, a certificate stack.
* The caller is responsible for freeing *certs if its value is left not NULL.
*/
int load_certs(const char *uri, int maybe_stdin, STACK_OF(X509) **certs,
const char *pass, const char *desc)
{
int ret, was_NULL = *certs == NULL;
if (desc == NULL)
desc = "certificates";
ret = load_key_certs_crls(uri, FORMAT_UNDEF, maybe_stdin, pass, desc, 0,
NULL, NULL, NULL, NULL, certs, NULL, NULL);
if (!ret && was_NULL) {
OSSL_STACK_OF_X509_free(*certs);
*certs = NULL;
}
return ret;
}
/*
* Initialize or extend, if *crls != NULL, a certificate stack.
* The caller is responsible for freeing *crls if its value is left not NULL.
*/
int load_crls(const char *uri, STACK_OF(X509_CRL) **crls,
const char *pass, const char *desc)
{
int ret, was_NULL = *crls == NULL;
if (desc == NULL)
desc = "CRLs";
ret = load_key_certs_crls(uri, FORMAT_UNDEF, 0, pass, desc, 0,
NULL, NULL, NULL, NULL, NULL, NULL, crls);
if (!ret && was_NULL) {
sk_X509_CRL_pop_free(*crls, X509_CRL_free);
*crls = NULL;
}
return ret;
}
static const char *format2string(int format)
{
switch (format) {
case FORMAT_PEM:
return "PEM";
case FORMAT_ASN1:
return "DER";
case FORMAT_PVK:
return "PVK";
case FORMAT_MSBLOB:
return "MSBLOB";
}
return NULL;
}
/* Set type expectation, but set to 0 if objects of multiple types expected. */
#define SET_EXPECT(val) \
(expect = expect < 0 ? (val) : (expect == (val) ? (val) : 0))
#define SET_EXPECT1(pvar, val) \
if ((pvar) != NULL) { \
*(pvar) = NULL; \
SET_EXPECT(val); \
}
/* Provide (error msg) text for some of the credential types to be loaded. */
#define FAIL_NAME \
(ppkey != NULL ? "private key" : ppubkey != NULL ? "public key" : \
pparams != NULL ? "key parameters" : \
pcert != NULL ? "certificate" : pcerts != NULL ? "certificates" : \
pcrl != NULL ? "CRL" : pcrls != NULL ? "CRLs" : NULL)
/*
* Load those types of credentials for which the result pointer is not NULL.
* Reads from stdin if 'uri' is NULL and 'maybe_stdin' is nonzero.
* 'format' parameter may be FORMAT_PEM, FORMAT_ASN1, or 0 for no hint.
* desc may contain more detail on the credential(s) to be loaded for error msg
* For non-NULL ppkey, pcert, and pcrl the first suitable value found is loaded.
* If pcerts is non-NULL and *pcerts == NULL then a new cert list is allocated.
* If pcerts is non-NULL then all available certificates are appended to *pcerts
* except any certificate assigned to *pcert.
* If pcrls is non-NULL and *pcrls == NULL then a new list of CRLs is allocated.
* If pcrls is non-NULL then all available CRLs are appended to *pcerts
* except any CRL assigned to *pcrl.
* In any case (also on error) the caller is responsible for freeing all members
* of *pcerts and *pcrls (as far as they are not NULL).
*/
int load_key_certs_crls(const char *uri, int format, int maybe_stdin,
const char *pass, const char *desc, int quiet,
EVP_PKEY **ppkey, EVP_PKEY **ppubkey,
EVP_PKEY **pparams,
X509 **pcert, STACK_OF(X509) **pcerts,
X509_CRL **pcrl, STACK_OF(X509_CRL) **pcrls)
{
PW_CB_DATA uidata;
OSSL_STORE_CTX *ctx = NULL;
OSSL_LIB_CTX *libctx = app_get0_libctx();
const char *propq = app_get0_propq();
int ncerts = 0, ncrls = 0, expect = -1;
const char *failed = FAIL_NAME;
const char *input_type;
OSSL_PARAM itp[2];
const OSSL_PARAM *params = NULL;
/* 'failed' describes type of credential to load for potential error msg */
if (failed == NULL) {
if (!quiet)
BIO_printf(bio_err, "Internal error: nothing was requested to load from %s\n",
uri != NULL ? uri : "<stdin>");
return 0;
}
/* suppress any extraneous errors left over from failed parse attempts */
ERR_set_mark();
SET_EXPECT1(ppkey, OSSL_STORE_INFO_PKEY);
SET_EXPECT1(ppubkey, OSSL_STORE_INFO_PUBKEY);
SET_EXPECT1(pparams, OSSL_STORE_INFO_PARAMS);
SET_EXPECT1(pcert, OSSL_STORE_INFO_CERT);
/*
* Up to here, the follwing holds.
* If just one of the ppkey, ppubkey, pparams, and pcert function parameters
* is nonzero, expect > 0 indicates which type of credential is expected.
* If expect == 0, more than one of them is nonzero (multiple types expected).
*/
if (pcerts != NULL) {
if (*pcerts == NULL && (*pcerts = sk_X509_new_null()) == NULL) {
if (!quiet)
BIO_printf(bio_err, "Out of memory loading");
goto end;
}
/*
* Adapt the 'expect' variable:
* set to OSSL_STORE_INFO_CERT if no other type is expected so far,
* otherwise set to 0 (indicating that multiple types are expected).
*/
SET_EXPECT(OSSL_STORE_INFO_CERT);
}
SET_EXPECT1(pcrl, OSSL_STORE_INFO_CRL);
if (pcrls != NULL) {
if (*pcrls == NULL && (*pcrls = sk_X509_CRL_new_null()) == NULL) {
if (!quiet)
BIO_printf(bio_err, "Out of memory loading");
goto end;
}
/*
* Adapt the 'expect' variable:
* set to OSSL_STORE_INFO_CRL if no other type is expected so far,
* otherwise set to 0 (indicating that multiple types are expected).
*/
SET_EXPECT(OSSL_STORE_INFO_CRL);
}
uidata.password = pass;
uidata.prompt_info = uri;
if ((input_type = format2string(format)) != NULL) {
itp[0] = OSSL_PARAM_construct_utf8_string(OSSL_STORE_PARAM_INPUT_TYPE,
(char *)input_type, 0);
itp[1] = OSSL_PARAM_construct_end();
params = itp;
}
if (uri == NULL) {
BIO *bio;
if (!maybe_stdin) {
if (!quiet)
BIO_printf(bio_err, "No filename or uri specified for loading\n");
goto end;
}
uri = "<stdin>";
unbuffer(stdin);
bio = BIO_new_fp(stdin, 0);
if (bio != NULL) {
ctx = OSSL_STORE_attach(bio, "file", libctx, propq,
get_ui_method(), &uidata, params,
NULL, NULL);
BIO_free(bio);
}
} else {
ctx = OSSL_STORE_open_ex(uri, libctx, propq, get_ui_method(), &uidata,
params, NULL, NULL);
}
if (ctx == NULL) {
if (!quiet)
BIO_printf(bio_err, "Could not open file or uri for loading");
goto end;
}
/* expect == 0 means here multiple types of credentials are to be loaded */
if (expect > 0 && !OSSL_STORE_expect(ctx, expect)) {
if (!quiet)
BIO_printf(bio_err, "Internal error trying to load");
goto end;
}
failed = NULL;
/* from here, failed != NULL only if actually an error has been detected */
while ((ppkey != NULL || ppubkey != NULL || pparams != NULL
|| pcert != NULL || pcerts != NULL || pcrl != NULL || pcrls != NULL)
&& !OSSL_STORE_eof(ctx)) {
OSSL_STORE_INFO *info = OSSL_STORE_load(ctx);
int type, ok = 1;
/*
* This can happen (for example) if we attempt to load a file with
* multiple different types of things in it - but the thing we just
* tried to load wasn't one of the ones we wanted, e.g. if we're trying
* to load a certificate but the file has both the private key and the
* certificate in it. We just retry until eof.
*/
if (info == NULL) {
continue;
}
type = OSSL_STORE_INFO_get_type(info);
switch (type) {
case OSSL_STORE_INFO_PKEY:
if (ppkey != NULL) {
ok = (*ppkey = OSSL_STORE_INFO_get1_PKEY(info)) != NULL;
if (ok)
ppkey = NULL;
break;
}
/*
* An EVP_PKEY with private parts also holds the public parts,
* so if the caller asked for a public key, and we got a private
* key, we can still pass it back.
*/
/* fall through */
case OSSL_STORE_INFO_PUBKEY:
if (ppubkey != NULL) {
ok = (*ppubkey = OSSL_STORE_INFO_get1_PUBKEY(info)) != NULL;
if (ok)
ppubkey = NULL;
}
break;
case OSSL_STORE_INFO_PARAMS:
if (pparams != NULL) {
ok = (*pparams = OSSL_STORE_INFO_get1_PARAMS(info)) != NULL;
if (ok)
pparams = NULL;
}
break;
case OSSL_STORE_INFO_CERT:
if (pcert != NULL) {
ok = (*pcert = OSSL_STORE_INFO_get1_CERT(info)) != NULL;
if (ok)
pcert = NULL;
} else if (pcerts != NULL) {
ok = X509_add_cert(*pcerts,
OSSL_STORE_INFO_get1_CERT(info),
X509_ADD_FLAG_DEFAULT);
}
ncerts += ok;
break;
case OSSL_STORE_INFO_CRL:
if (pcrl != NULL) {
ok = (*pcrl = OSSL_STORE_INFO_get1_CRL(info)) != NULL;
if (ok)
pcrl = NULL;
} else if (pcrls != NULL) {
ok = sk_X509_CRL_push(*pcrls, OSSL_STORE_INFO_get1_CRL(info));
}
ncrls += ok;
break;
default:
/* skip any other type; ok stays == 1 */
break;
}
OSSL_STORE_INFO_free(info);
if (!ok) {
failed = OSSL_STORE_INFO_type_string(type);
if (!quiet)
BIO_printf(bio_err, "Error reading");
break;
}
}
end:
OSSL_STORE_close(ctx);
/* see if any of the requested types of credentials was not found */
if (failed == NULL) {
if (ncerts > 0)
pcerts = NULL;
if (ncrls > 0)
pcrls = NULL;
failed = FAIL_NAME;
if (failed != NULL && !quiet)
BIO_printf(bio_err, "Could not find");
}
if (failed != NULL && !quiet) {
unsigned long err = ERR_peek_last_error();
/* continue the error message with the type of credential affected */
if (desc != NULL && strstr(desc, failed) != NULL) {
BIO_printf(bio_err, " %s", desc);
} else {
BIO_printf(bio_err, " %s", failed);
if (desc != NULL)
BIO_printf(bio_err, " of %s", desc);
}
if (uri != NULL)
BIO_printf(bio_err, " from %s", uri);
if (ERR_SYSTEM_ERROR(err)) {
/* provide more readable diagnostic output */
BIO_printf(bio_err, ": %s", strerror(ERR_GET_REASON(err)));
ERR_pop_to_mark();
ERR_set_mark();
}
BIO_printf(bio_err, "\n");
ERR_print_errors(bio_err);
}
if (quiet || failed == NULL)
/* clear any suppressed or spurious errors */
ERR_pop_to_mark();
else
ERR_clear_last_mark();
return failed == NULL;
}
#define X509V3_EXT_UNKNOWN_MASK (0xfL << 16)
#define X509V3_EXT_DEFAULT 0 /* Return error for unknown exts */
#define X509V3_EXT_ERROR_UNKNOWN (1L << 16) /* Print error for unknown exts */
#define X509V3_EXT_PARSE_UNKNOWN (2L << 16) /* ASN1 parse unknown extensions */
#define X509V3_EXT_DUMP_UNKNOWN (3L << 16) /* BIO_dump unknown extensions */
#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_2254", ASN1_STRFLGS_ESC_2254, 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) == 0)
return 0;
if (*flags != XN_FLAG_COMPAT
&& (*flags & XN_FLAG_SEP_MASK) == 0)
*flags |= XN_FLAG_SEP_CPLUS_SPC;
return 1;
}
int set_dateopt(unsigned long *dateopt, const char *arg)
{
if (OPENSSL_strcasecmp(arg, "rfc_822") == 0)
*dateopt = ASN1_DTFLGS_RFC822;
else if (OPENSSL_strcasecmp(arg, "iso_8601") == 0)
*dateopt = ASN1_DTFLGS_ISO8601;
else
return 0;
return 1;
}
int set_ext_copy(int *copy_type, const char *arg)
{
if (OPENSSL_strcasecmp(arg, "none") == 0)
*copy_type = EXT_COPY_NONE;
else if (OPENSSL_strcasecmp(arg, "copy") == 0)
*copy_type = EXT_COPY_ADD;
else if (OPENSSL_strcasecmp(arg, "copyall") == 0)
*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;
int i, ret = 0;
if (x == NULL || req == NULL)
return 0;
if (copy_type == EXT_COPY_NONE)
return 1;
exts = X509_REQ_get_extensions(req);
for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
ASN1_OBJECT *obj = X509_EXTENSION_get_object(ext);
int idx = X509_get_ext_by_OBJ(x, obj, -1);
/* Does extension exist in target? */
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 {
X509_EXTENSION_free(X509_delete_ext(x, idx));
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 (OPENSSL_strcasecmp(arg, ptbl->name) == 0) {
*flags &= ~ptbl->mask;
if (c)
*flags |= ptbl->flag;
else
*flags &= ~ptbl->flag;
return 1;
}
}
return 0;
}
void print_name(BIO *out, const char *title, const X509_NAME *nm)
{
char *buf;
char mline = 0;
int indent = 0;
unsigned long lflags = get_nameopt();
if (out == NULL)
return;
if (title != NULL)
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");
OPENSSL_free(buf);
} else {
if (mline)
BIO_puts(out, "\n");
X509_NAME_print_ex(out, nm, indent, lflags);
BIO_puts(out, "\n");
}
}
void print_bignum_var(BIO *out, const BIGNUM *in, const char *var,
int len, unsigned char *buffer)
{
BIO_printf(out, " static unsigned char %s_%d[] = {", var, len);
if (BN_is_zero(in)) {
BIO_printf(out, "\n 0x00");
} else {
int i, l;
l = BN_bn2bin(in, buffer);
for (i = 0; i < l; i++) {
BIO_printf(out, (i % 10) == 0 ? "\n " : " ");
if (i < l - 1)
BIO_printf(out, "0x%02X,", buffer[i]);
else
BIO_printf(out, "0x%02X", buffer[i]);
}
}
BIO_printf(out, "\n };\n");
}
void print_array(BIO *out, const char *title, int len, const unsigned char *d)
{
int i;
BIO_printf(out, "unsigned char %s[%d] = {", title, len);
for (i = 0; i < len; i++) {
if ((i % 10) == 0)
BIO_printf(out, "\n ");
if (i < len - 1)
BIO_printf(out, "0x%02X, ", d[i]);
else
BIO_printf(out, "0x%02X", d[i]);
}
BIO_printf(out, "\n};\n");
}
X509_STORE *setup_verify(const char *CAfile, int noCAfile,
const char *CApath, int noCApath,
const char *CAstore, int noCAstore)
{
X509_STORE *store = X509_STORE_new();
X509_LOOKUP *lookup;
OSSL_LIB_CTX *libctx = app_get0_libctx();
const char *propq = app_get0_propq();
if (store == NULL)
goto end;
if (CAfile != NULL || !noCAfile) {
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
if (lookup == NULL)
goto end;
if (CAfile != NULL) {
if (X509_LOOKUP_load_file_ex(lookup, CAfile, X509_FILETYPE_PEM,
libctx, propq) <= 0) {
ERR_clear_error();
if (X509_LOOKUP_load_file_ex(lookup, CAfile, X509_FILETYPE_ASN1,
libctx, propq) <= 0) {
BIO_printf(bio_err, "Error loading file %s\n", CAfile);
goto end;
}
}
} else {
X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT,
libctx, propq);
}
}
if (CApath != NULL || !noCApath) {
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
if (lookup == NULL)
goto end;
if (CApath != NULL) {
if (X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM) <= 0) {
BIO_printf(bio_err, "Error loading directory %s\n", CApath);
goto end;
}
} else {
X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
}
}
if (CAstore != NULL || !noCAstore) {
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_store());
if (lookup == NULL)
goto end;
if (!X509_LOOKUP_add_store_ex(lookup, CAstore, libctx, propq)) {
if (CAstore != NULL)
BIO_printf(bio_err, "Error loading store URI %s\n", CAstore);
goto end;
}
}
ERR_clear_error();
return store;
end:
ERR_print_errors(bio_err);
X509_STORE_free(store);
return NULL;
}
static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
{
const char *n;
n = a[DB_serial];
while (*n == '0')
n++;
return OPENSSL_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 OPENSSL_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)
#undef BSIZE
#define BSIZE 256
BIGNUM *load_serial(const char *serialfile, int *exists, 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;
in = BIO_new_file(serialfile, "r");
if (exists != NULL)
*exists = in != NULL;
if (in == NULL) {
if (!create) {
perror(serialfile);
goto err;
}
ERR_clear_error();
ret = BN_new();
if (ret == NULL) {
BIO_printf(bio_err, "Out of memory\n");
} else if (!rand_serial(ret, ai)) {
BIO_printf(bio_err, "Error creating random number to store in %s\n",
serialfile);
BN_free(ret);
ret = NULL;
}
} else {
if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
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 != NULL && retai != NULL) {
*retai = ai;
ai = NULL;
}
err:
if (ret == NULL)
ERR_print_errors(bio_err);
BIO_free(in);
ASN1_INTEGER_free(ai);
return ret;
}
int save_serial(const char *serialfile, const char *suffix,
const BIGNUM *serial, ASN1_INTEGER **retai)
{
char buf[1][BSIZE];
BIO *out = NULL;
int ret = 0;
ASN1_INTEGER *ai = NULL;
size_t j;
if (suffix == NULL)
j = strlen(serialfile);
else
j = strlen(serialfile) + strlen(suffix) + 1;
if (j >= BSIZE) {
BIO_printf(bio_err, "File name too long\n");
goto err;
}
if (suffix == NULL) {
OPENSSL_strlcpy(buf[0], serialfile, BSIZE);
} else {
#ifndef OPENSSL_SYS_VMS
BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, suffix);
#else
BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, suffix);
#endif
}
out = BIO_new_file(buf[0], "w");
if (out == NULL) {
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:
if (!ret)
ERR_print_errors(bio_err);
BIO_free_all(out);
ASN1_INTEGER_free(ai);
return ret;
}
int rotate_serial(const char *serialfile, const char *new_suffix,
const char *old_suffix)
{
char buf[2][BSIZE];
size_t i, j;
i = strlen(serialfile) + strlen(old_suffix);
j = strlen(serialfile) + strlen(new_suffix);
if (i > j)
j = i;
if (j + 1 >= BSIZE) {
BIO_printf(bio_err, "File name too long\n");
goto err;
}
#ifndef OPENSSL_SYS_VMS
BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, new_suffix);
BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", serialfile, old_suffix);
#else
BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, new_suffix);
BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", serialfile, old_suffix);
#endif
if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
#ifdef ENOTDIR
&& errno != ENOTDIR
#endif
) {
BIO_printf(bio_err,
"Unable to rename %s to %s\n", serialfile, buf[1]);
perror("reason");
goto err;
}
if (rename(buf[0], serialfile) < 0) {
BIO_printf(bio_err,
"Unable to rename %s to %s\n", buf[0], serialfile);
perror("reason");
rename(buf[1], serialfile);
goto err;
}
return 1;
err:
ERR_print_errors(bio_err);
return 0;
}
int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
{
BIGNUM *btmp;
int ret = 0;
btmp = b == NULL ? BN_new() : b;
if (btmp == NULL)
return 0;
if (!BN_rand(btmp, SERIAL_RAND_BITS, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))
goto error;
if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
goto error;
ret = 1;
error:
if (btmp != b)
BN_free(btmp);
return ret;
}
CA_DB *load_index(const char *dbfile, DB_ATTR *db_attr)
{
CA_DB *retdb = NULL;
TXT_DB *tmpdb = NULL;
BIO *in;
CONF *dbattr_conf = NULL;
char buf[BSIZE];
#ifndef OPENSSL_NO_POSIX_IO
FILE *dbfp;
struct stat dbst;
#endif
in = BIO_new_file(dbfile, "r");
if (in == NULL)
goto err;
#ifndef OPENSSL_NO_POSIX_IO
BIO_get_fp(in, &dbfp);
if (fstat(fileno(dbfp), &dbst) == -1) {
ERR_raise_data(ERR_LIB_SYS, errno,
"calling fstat(%s)", dbfile);
goto err;
}
#endif
if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
goto err;
#ifndef OPENSSL_SYS_VMS
BIO_snprintf(buf, sizeof(buf), "%s.attr", dbfile);
#else
BIO_snprintf(buf, sizeof(buf), "%s-attr", dbfile);
#endif
dbattr_conf = app_load_config_quiet(buf);
retdb = app_malloc(sizeof(*retdb), "new DB");
retdb->db = tmpdb;
tmpdb = NULL;
if (db_attr)
retdb->attributes = *db_attr;
else
retdb->attributes.unique_subject = 1;
if (dbattr_conf != NULL) {
char *p = app_conf_try_string(dbattr_conf, NULL, "unique_subject");
if (p != NULL)
retdb->attributes.unique_subject = parse_yesno(p, 1);
}
retdb->dbfname = OPENSSL_strdup(dbfile);
if (retdb->dbfname == NULL)
goto err;
#ifndef OPENSSL_NO_POSIX_IO
retdb->dbst = dbst;
#endif
err:
ERR_print_errors(bio_err);
NCONF_free(dbattr_conf);
TXT_DB_free(tmpdb);
BIO_free_all(in);
return retdb;
}
/*
* Returns > 0 on success, <= 0 on error
*/
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);
goto err;
}
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);
goto err;
}
return 1;
err:
ERR_print_errors(bio_err);
return 0;
}
int save_index(const char *dbfile, const char *suffix, CA_DB *db)
{
char buf[3][BSIZE];
BIO *out;
int j;
j = (int)(strlen(dbfile) + strlen(suffix));
if (j + 6 >= BSIZE) {
BIO_printf(bio_err, "File name too long\n");
goto err;
}
#ifndef OPENSSL_SYS_VMS
BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr", dbfile);
BIO_snprintf(buf[1], sizeof(buf[1]), "%s.attr.%s", dbfile, suffix);
BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, suffix);
#else
BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr", dbfile);
BIO_snprintf(buf[1], sizeof(buf[1]), "%s-attr-%s", dbfile, suffix);
BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, suffix);
#endif
out = BIO_new_file(buf[0], "w");
if (out == NULL) {
perror(dbfile);
BIO_printf(bio_err, "Unable to open '%s'\n", dbfile);
goto err;
}
j = TXT_DB_write(out, db->db);
BIO_free(out);
if (j <= 0)
goto err;
out = BIO_new_file(buf[1], "w");
if (out == NULL) {
perror(buf[2]);
BIO_printf(bio_err, "Unable to open '%s'\n", buf[2]);
goto err;
}
BIO_printf(out, "unique_subject = %s\n",
db->attributes.unique_subject ? "yes" : "no");
BIO_free(out);
return 1;
err:
ERR_print_errors(bio_err);
return 0;
}
int rotate_index(const char *dbfile, const char *new_suffix,
const char *old_suffix)
{
char buf[5][BSIZE];
size_t i, j;
i = strlen(dbfile) + strlen(old_suffix);
j = strlen(dbfile) + strlen(new_suffix);
if (i > j)
j = i;
if (j + 6 >= BSIZE) {
BIO_printf(bio_err, "File name too long\n");
goto err;
}
#ifndef OPENSSL_SYS_VMS
BIO_snprintf(buf[4], sizeof(buf[4]), "%s.attr", dbfile);
BIO_snprintf(buf[3], sizeof(buf[3]), "%s.attr.%s", dbfile, old_suffix);
BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr.%s", dbfile, new_suffix);
BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", dbfile, old_suffix);
BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, new_suffix);
#else
BIO_snprintf(buf[4], sizeof(buf[4]), "%s-attr", dbfile);
BIO_snprintf(buf[3], sizeof(buf[3]), "%s-attr-%s", dbfile, old_suffix);
BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr-%s", dbfile, new_suffix);
BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", dbfile, old_suffix);
BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, new_suffix);
#endif
if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
#ifdef ENOTDIR
&& errno != ENOTDIR
#endif
) {
BIO_printf(bio_err, "Unable to rename %s to %s\n", dbfile, buf[1]);
perror("reason");
goto err;
}
if (rename(buf[0], dbfile) < 0) {
BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[0], dbfile);
perror("reason");
rename(buf[1], dbfile);
goto err;
}
if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
#ifdef ENOTDIR
&& errno != ENOTDIR
#endif
) {
BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[4], buf[3]);
perror("reason");
rename(dbfile, buf[0]);
rename(buf[1], dbfile);
goto err;
}
if (rename(buf[2], buf[4]) < 0) {
BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[2], buf[4]);
perror("reason");
rename(buf[3], buf[4]);
rename(dbfile, buf[0]);
rename(buf[1], dbfile);
goto err;
}
return 1;
err:
ERR_print_errors(bio_err);
return 0;
}
void free_index(CA_DB *db)
{
if (db) {
TXT_DB_free(db->db);
OPENSSL_free(db->dbfname);
OPENSSL_free(db);
}
}
int parse_yesno(const char *str, int def)
{
if (str) {
switch (*str) {
case 'f': /* false */
case 'F': /* FALSE */
case 'n': /* no */
case 'N': /* NO */
case '0': /* 0 */
return 0;
case 't': /* true */
case 'T': /* TRUE */
case 'y': /* yes */
case 'Y': /* YES */
case '1': /* 1 */
return 1;
}
}
return def;
}
/*
* name is expected to be in the format /type0=value0/type1=value1/type2=...
* where + can be used instead of / to form multi-valued RDNs if canmulti
* and characters may be escaped by \
*/
X509_NAME *parse_name(const char *cp, int chtype, int canmulti,
const char *desc)
{
int nextismulti = 0;
char *work;
X509_NAME *n;
if (*cp++ != '/') {
BIO_printf(bio_err,
"%s: %s name is expected to be in the format "
"/type0=value0/type1=value1/type2=... where characters may "
"be escaped by \\. This name is not in that format: '%s'\n",
opt_getprog(), desc, --cp);
return NULL;
}
n = X509_NAME_new();
if (n == NULL) {
BIO_printf(bio_err, "%s: Out of memory\n", opt_getprog());
return NULL;
}
work = OPENSSL_strdup(cp);
if (work == NULL) {
BIO_printf(bio_err, "%s: Error copying %s name input\n",
opt_getprog(), desc);
goto err;
}
while (*cp != '\0') {
char *bp = work;
char *typestr = bp;
unsigned char *valstr;
int nid;
int ismulti = nextismulti;
nextismulti = 0;
/* Collect the type */
while (*cp != '\0' && *cp != '=')
*bp++ = *cp++;
*bp++ = '\0';
if (*cp == '\0') {
BIO_printf(bio_err,
"%s: Missing '=' after RDN type string '%s' in %s name string\n",
opt_getprog(), typestr, desc);
goto err;
}
++cp;
/* Collect the value. */
valstr = (unsigned char *)bp;
for (; *cp != '\0' && *cp != '/'; *bp++ = *cp++) {
/* unescaped '+' symbol string signals further member of multiRDN */
if (canmulti && *cp == '+') {
nextismulti = 1;
break;
}
if (*cp == '\\' && *++cp == '\0') {
BIO_printf(bio_err,
"%s: Escape character at end of %s name string\n",
opt_getprog(), desc);
goto err;
}
}
*bp++ = '\0';
/* If not at EOS (must be + or /), move forward. */
if (*cp != '\0')
++cp;
/* Parse */
nid = OBJ_txt2nid(typestr);
if (nid == NID_undef) {
BIO_printf(bio_err,
"%s warning: Skipping unknown %s name attribute \"%s\"\n",
opt_getprog(), desc, typestr);
if (ismulti)
BIO_printf(bio_err,
"%s hint: a '+' in a value string needs be escaped using '\\' else a new member of a multi-valued RDN is expected\n",
opt_getprog());
continue;
}
if (*valstr == '\0') {
BIO_printf(bio_err,
"%s warning: No value provided for %s name attribute \"%s\", skipped\n",
opt_getprog(), desc, typestr);
continue;
}
if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
valstr, (int)strlen((char *)valstr),
-1, ismulti ? -1 : 0)) {
ERR_print_errors(bio_err);
BIO_printf(bio_err,
"%s: Error adding %s name attribute \"/%s=%s\"\n",
opt_getprog(), desc, typestr, valstr);
goto err;
}
}
OPENSSL_free(work);
return n;
err:
X509_NAME_free(n);
OPENSSL_free(work);
return NULL;
}
/*
* 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 == NULL)
return -1;
for (;;) {
if ((maxlen != -1) && maxlen < 1024)
len = maxlen;
else
len = 1024;
len = BIO_read(in, tbuf, len);
if (len < 0) {
BIO_free(mem);
return -1;
}
if (len == 0)
break;
if (BIO_write(mem, tbuf, len) != len) {
BIO_free(mem);
return -1;
}
if (maxlen != -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, const char *value)
{
int rv = 0;
char *stmp, *vtmp = NULL;
stmp = OPENSSL_strdup(value);
if (stmp == NULL)
return -1;
vtmp = strchr(stmp, ':');
if (vtmp == NULL)
goto err;
*vtmp = 0;
vtmp++;
rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
err:
OPENSSL_free(stmp);
return rv;
}
static void nodes_print(const char *name, STACK_OF(X509_POLICY_NODE) *nodes)
{
X509_POLICY_NODE *node;
int i;
BIO_printf(bio_err, "%s Policies:", name);
if (nodes) {
BIO_puts(bio_err, "\n");
for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
node = sk_X509_POLICY_NODE_value(nodes, i);
X509_POLICY_NODE_print(bio_err, node, 2);
}
} else {
BIO_puts(bio_err, " <empty>\n");
}
}
void policies_print(X509_STORE_CTX *ctx)
{
X509_POLICY_TREE *tree;
int explicit_policy;
tree = X509_STORE_CTX_get0_policy_tree(ctx);
explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
BIO_printf(bio_err, "Require explicit Policy: %s\n",
explicit_policy ? "True" : "False");
nodes_print("Authority", X509_policy_tree_get0_policies(tree));
nodes_print("User", X509_policy_tree_get0_user_policies(tree));
}
/*-
* 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 terminated string like "abc,def,ghi"
*
* returns: a malloc'd buffer or NULL on failure.
*/
unsigned char *next_protos_parse(size_t *outlen, const char *in)
{
size_t len;
unsigned char *out;
size_t i, start = 0;
size_t skipped = 0;
len = strlen(in);
if (len == 0 || len >= 65535)
return NULL;
out = app_malloc(len + 1, "NPN buffer");
for (i = 0; i <= len; ++i) {
if (i == len || in[i] == ',') {
/*
* Zero-length ALPN elements are invalid on the wire, we could be
* strict and reject the entire string, but just ignoring extra
* commas seems harmless and more friendly.
*
* Every comma we skip in this way puts the input buffer another
* byte ahead of the output buffer, so all stores into the output
* buffer need to be decremented by the number commas skipped.
*/
if (i == start) {
++start;
++skipped;
continue;
}
if (i - start > 255) {
OPENSSL_free(out);
return NULL;
}
out[start - skipped] = (unsigned char)(i - start);
start = i + 1;
} else {
out[i + 1 - skipped] = in[i];
}
}
if (len <= skipped) {
OPENSSL_free(out);
return NULL;
}
*outlen = len + 1 - skipped;
return out;
}
int check_cert_attributes(BIO *bio, X509 *x, const char *checkhost,
const char *checkemail, const char *checkip,
int print)
{
int valid_host = 0;
int valid_mail = 0;
int valid_ip = 0;
int ret = 1;
if (x == NULL)
return 0;
if (checkhost != NULL) {
valid_host = X509_check_host(x, checkhost, 0, 0, NULL);
if (print)
BIO_printf(bio, "Hostname %s does%s match certificate\n",
checkhost, valid_host == 1 ? "" : " NOT");
ret = ret && valid_host > 0;
}
if (checkemail != NULL) {
valid_mail = X509_check_email(x, checkemail, 0, 0);
if (print)
BIO_printf(bio, "Email %s does%s match certificate\n",
checkemail, valid_mail ? "" : " NOT");
ret = ret && valid_mail > 0;
}
if (checkip != NULL) {
valid_ip = X509_check_ip_asc(x, checkip, 0);
if (print)
BIO_printf(bio, "IP %s does%s match certificate\n",
checkip, valid_ip ? "" : " NOT");
ret = ret && valid_ip > 0;
}
return ret;
}
static int do_pkey_ctx_init(EVP_PKEY_CTX *pkctx, STACK_OF(OPENSSL_STRING) *opts)
{
int i;
if (opts == NULL)
return 1;
for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
char *opt = sk_OPENSSL_STRING_value(opts, i);
if (pkey_ctrl_string(pkctx, opt) <= 0) {
BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
ERR_print_errors(bio_err);
return 0;
}
}
return 1;
}
static int do_x509_init(X509 *x, STACK_OF(OPENSSL_STRING) *opts)
{
int i;
if (opts == NULL)
return 1;
for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
char *opt = sk_OPENSSL_STRING_value(opts, i);
if (x509_ctrl_string(x, opt) <= 0) {
BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
ERR_print_errors(bio_err);
return 0;
}
}
return 1;
}
static int do_x509_req_init(X509_REQ *x, STACK_OF(OPENSSL_STRING) *opts)
{
int i;
if (opts == NULL)
return 1;
for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
char *opt = sk_OPENSSL_STRING_value(opts, i);
if (x509_req_ctrl_string(x, opt) <= 0) {
BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
ERR_print_errors(bio_err);
return 0;
}
}
return 1;
}
static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
const char *md, STACK_OF(OPENSSL_STRING) *sigopts)
{
EVP_PKEY_CTX *pkctx = NULL;
char def_md[80];
if (ctx == NULL)
return 0;
/*
* EVP_PKEY_get_default_digest_name() returns 2 if the digest is mandatory
* for this algorithm.
*/
if (EVP_PKEY_get_default_digest_name(pkey, def_md, sizeof(def_md)) == 2
&& strcmp(def_md, "UNDEF") == 0) {
/* The signing algorithm requires there to be no digest */
md = NULL;
}
return EVP_DigestSignInit_ex(ctx, &pkctx, md, app_get0_libctx(),
app_get0_propq(), pkey, NULL)
&& do_pkey_ctx_init(pkctx, sigopts);
}
static int adapt_keyid_ext(X509 *cert, X509V3_CTX *ext_ctx,
const char *name, const char *value, int add_default)
{
const STACK_OF(X509_EXTENSION) *exts = X509_get0_extensions(cert);
X509_EXTENSION *new_ext = X509V3_EXT_nconf(NULL, ext_ctx, name, value);
int idx, rv = 0;
if (new_ext == NULL)
return rv;
idx = X509v3_get_ext_by_OBJ(exts, X509_EXTENSION_get_object(new_ext), -1);
if (idx >= 0) {
X509_EXTENSION *found_ext = X509v3_get_ext(exts, idx);
ASN1_OCTET_STRING *encoded = X509_EXTENSION_get_data(found_ext);
int disabled = ASN1_STRING_length(encoded) <= 2; /* indicating "none" */
if (disabled) {
X509_delete_ext(cert, idx);
X509_EXTENSION_free(found_ext);
} /* else keep existing key identifier, which might be outdated */
rv = 1;
} else {
rv = !add_default || X509_add_ext(cert, new_ext, -1);
}
X509_EXTENSION_free(new_ext);
return rv;
}
int cert_matches_key(const X509 *cert, const EVP_PKEY *pkey)
{
int match;
ERR_set_mark();
match = X509_check_private_key(cert, pkey);
ERR_pop_to_mark();
return match;
}
/* Ensure RFC 5280 compliance, adapt keyIDs as needed, and sign the cert info */
int do_X509_sign(X509 *cert, int force_v1, EVP_PKEY *pkey, const char *md,
STACK_OF(OPENSSL_STRING) *sigopts, X509V3_CTX *ext_ctx)
{
EVP_MD_CTX *mctx = EVP_MD_CTX_new();
int self_sign;
int rv = 0;
if (!force_v1) {
if (!X509_set_version(cert, X509_VERSION_3))
goto end;
/*
* Add default SKID before AKID such that AKID can make use of it
* in case the certificate is self-signed
*/
/* Prevent X509_V_ERR_MISSING_SUBJECT_KEY_IDENTIFIER */
if (!adapt_keyid_ext(cert, ext_ctx, "subjectKeyIdentifier", "hash", 1))
goto end;
/* Prevent X509_V_ERR_MISSING_AUTHORITY_KEY_IDENTIFIER */
self_sign = cert_matches_key(cert, pkey);
if (!adapt_keyid_ext(cert, ext_ctx, "authorityKeyIdentifier",
"keyid, issuer", !self_sign))
goto end;
}
/* May add further measures for ensuring RFC 5280 compliance, see #19805 */
if (mctx != NULL && do_sign_init(mctx, pkey, md, sigopts) > 0)
rv = (X509_sign_ctx(cert, mctx) > 0);
end:
EVP_MD_CTX_free(mctx);
return rv;
}
/* Sign the certificate request info */
int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const char *md,
STACK_OF(OPENSSL_STRING) *sigopts)
{
int rv = 0;
EVP_MD_CTX *mctx = EVP_MD_CTX_new();
if (do_sign_init(mctx, pkey, md, sigopts) > 0)
rv = (X509_REQ_sign_ctx(x, mctx) > 0);
EVP_MD_CTX_free(mctx);
return rv;
}
/* Sign the CRL info */
int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const char *md,
STACK_OF(OPENSSL_STRING) *sigopts)
{
int rv = 0;
EVP_MD_CTX *mctx = EVP_MD_CTX_new();
if (do_sign_init(mctx, pkey, md, sigopts) > 0)
rv = (X509_CRL_sign_ctx(x, mctx) > 0);
EVP_MD_CTX_free(mctx);
return rv;
}
/*
* do_X509_verify returns 1 if the signature is valid,
* 0 if the signature check fails, or -1 if error occurs.
*/
int do_X509_verify(X509 *x, EVP_PKEY *pkey, STACK_OF(OPENSSL_STRING) *vfyopts)
{
int rv = 0;
if (do_x509_init(x, vfyopts) > 0)
rv = X509_verify(x, pkey);
else
rv = -1;
return rv;
}
/*
* do_X509_REQ_verify returns 1 if the signature is valid,
* 0 if the signature check fails, or -1 if error occurs.
*/
int do_X509_REQ_verify(X509_REQ *x, EVP_PKEY *pkey,
STACK_OF(OPENSSL_STRING) *vfyopts)
{
int rv = 0;
if (do_x509_req_init(x, vfyopts) > 0)
rv = X509_REQ_verify_ex(x, pkey, app_get0_libctx(), app_get0_propq());
else
rv = -1;
return rv;
}
/* Get first http URL from a DIST_POINT structure */
static const char *get_dp_url(DIST_POINT *dp)
{
GENERAL_NAMES *gens;
GENERAL_NAME *gen;
int i, gtype;
ASN1_STRING *uri;
if (!dp->distpoint || dp->distpoint->type != 0)
return NULL;
gens = dp->distpoint->name.fullname;
for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
gen = sk_GENERAL_NAME_value(gens, i);
uri = GENERAL_NAME_get0_value(gen, &gtype);
if (gtype == GEN_URI && ASN1_STRING_length(uri) > 6) {
const char *uptr = (const char *)ASN1_STRING_get0_data(uri);
if (IS_HTTP(uptr)) /* can/should not use HTTPS here */
return uptr;
}
}
return NULL;
}
/*
* Look through a CRLDP structure and attempt to find an http URL to
* downloads a CRL from.
*/
static X509_CRL *load_crl_crldp(STACK_OF(DIST_POINT) *crldp)
{
int i;
const char *urlptr = NULL;
for (i = 0; i < sk_DIST_POINT_num(crldp); i++) {
DIST_POINT *dp = sk_DIST_POINT_value(crldp, i);
urlptr = get_dp_url(dp);
if (urlptr != NULL)
return load_crl(urlptr, FORMAT_UNDEF, 0, "CRL via CDP");
}
return NULL;
}
/*
* Example of downloading CRLs from CRLDP:
* not usable for real world as it always downloads and doesn't cache anything.
*/
static STACK_OF(X509_CRL) *crls_http_cb(const X509_STORE_CTX *ctx,
const X509_NAME *nm)
{
X509 *x;
STACK_OF(X509_CRL) *crls = NULL;
X509_CRL *crl;
STACK_OF(DIST_POINT) *crldp;
crls = sk_X509_CRL_new_null();
if (!crls)
return NULL;
x = X509_STORE_CTX_get_current_cert(ctx);
crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
crl = load_crl_crldp(crldp);
sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
if (crl == NULL || !sk_X509_CRL_push(crls, crl))
goto error;
/* Try to download delta CRL */
crldp = X509_get_ext_d2i(x, NID_freshest_crl, NULL, NULL);
crl = load_crl_crldp(crldp);
sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
if (crl != NULL && !sk_X509_CRL_push(crls, crl))
goto error;
return crls;
error:
X509_CRL_free(crl);
sk_X509_CRL_free(crls);
return NULL;
}
void store_setup_crl_download(X509_STORE *st)
{
X509_STORE_set_lookup_crls_cb(st, crls_http_cb);
}
#if !defined(OPENSSL_NO_SOCK) && !defined(OPENSSL_NO_HTTP)
static const char *tls_error_hint(void)
{
unsigned long err = ERR_peek_error();
if (ERR_GET_LIB(err) != ERR_LIB_SSL)
err = ERR_peek_last_error();
if (ERR_GET_LIB(err) != ERR_LIB_SSL)
return NULL; /* likely no TLS error */
switch (ERR_GET_REASON(err)) {
case SSL_R_WRONG_VERSION_NUMBER:
return "The server does not support (a suitable version of) TLS";
case SSL_R_UNKNOWN_PROTOCOL:
return "The server does not support HTTPS";
case SSL_R_CERTIFICATE_VERIFY_FAILED:
return "Cannot authenticate server via its TLS certificate, likely due to mismatch with our trusted TLS certs or missing revocation status";
case SSL_AD_REASON_OFFSET + TLS1_AD_UNKNOWN_CA:
return "Server did not accept our TLS certificate, likely due to mismatch with server's trust anchor or missing revocation status";
case SSL_AD_REASON_OFFSET + SSL3_AD_HANDSHAKE_FAILURE:
return "TLS handshake failure. Possibly the server requires our TLS certificate but did not receive it";
default:
return NULL; /* no hint available for TLS error */
}
}
static BIO *http_tls_shutdown(BIO *bio)
{
if (bio != NULL) {
BIO *cbio;
const char *hint = tls_error_hint();
if (hint != NULL)
BIO_printf(bio_err, "%s\n", hint);
(void)ERR_set_mark();
BIO_ssl_shutdown(bio);
cbio = BIO_pop(bio); /* connect+HTTP BIO */
BIO_free(bio); /* SSL BIO */
(void)ERR_pop_to_mark(); /* hide SSL_R_READ_BIO_NOT_SET etc. */
bio = cbio;
}
return bio;
}
/* HTTP callback function that supports TLS connection also via HTTPS proxy */
BIO *app_http_tls_cb(BIO *bio, void *arg, int connect, int detail)
{
APP_HTTP_TLS_INFO *info = (APP_HTTP_TLS_INFO *)arg;
SSL_CTX *ssl_ctx = info->ssl_ctx;
if (ssl_ctx == NULL) /* not using TLS */
return bio;
if (connect) {
SSL *ssl;
BIO *sbio = NULL;
X509_STORE *ts = SSL_CTX_get_cert_store(ssl_ctx);
X509_VERIFY_PARAM *vpm = X509_STORE_get0_param(ts);
const char *host = vpm == NULL ? NULL :
X509_VERIFY_PARAM_get0_host(vpm, 0 /* first hostname */);
/* adapt after fixing callback design flaw, see #17088 */
if ((info->use_proxy
&& !OSSL_HTTP_proxy_connect(bio, info->server, info->port,
NULL, NULL, /* no proxy credentials */
info->timeout, bio_err, opt_getprog()))
|| (sbio = BIO_new(BIO_f_ssl())) == NULL) {
return NULL;
}
if ((ssl = SSL_new(ssl_ctx)) == NULL) {
BIO_free(sbio);
return NULL;
}
if (vpm != NULL)
SSL_set_tlsext_host_name(ssl, host /* may be NULL */);
SSL_set_connect_state(ssl);
BIO_set_ssl(sbio, ssl, BIO_CLOSE);
bio = BIO_push(sbio, bio);
} else { /* disconnect from TLS */
bio = http_tls_shutdown(bio);
}
return bio;
}
void APP_HTTP_TLS_INFO_free(APP_HTTP_TLS_INFO *info)
{
if (info != NULL) {
SSL_CTX_free(info->ssl_ctx);
OPENSSL_free(info);
}
}
ASN1_VALUE *app_http_get_asn1(const char *url, const char *proxy,
const char *no_proxy, SSL_CTX *ssl_ctx,
const STACK_OF(CONF_VALUE) *headers,
long timeout, const char *expected_content_type,
const ASN1_ITEM *it)
{
APP_HTTP_TLS_INFO info;
char *server;
char *port;
int use_ssl;
BIO *mem;
ASN1_VALUE *resp = NULL;
if (url == NULL || it == NULL) {
ERR_raise(ERR_LIB_HTTP, ERR_R_PASSED_NULL_PARAMETER);
return NULL;
}
if (!OSSL_HTTP_parse_url(url, &use_ssl, NULL /* userinfo */, &server, &port,
NULL /* port_num, */, NULL, NULL, NULL))
return NULL;
if (use_ssl && ssl_ctx == NULL) {
ERR_raise_data(ERR_LIB_HTTP, ERR_R_PASSED_NULL_PARAMETER,
"missing SSL_CTX");
goto end;
}
if (!use_ssl && ssl_ctx != NULL) {
ERR_raise_data(ERR_LIB_HTTP, ERR_R_PASSED_INVALID_ARGUMENT,
"SSL_CTX given but use_ssl == 0");
goto end;
}
info.server = server;
info.port = port;
info.use_proxy = /* workaround for callback design flaw, see #17088 */
OSSL_HTTP_adapt_proxy(proxy, no_proxy, server, use_ssl) != NULL;
info.timeout = timeout;
info.ssl_ctx = ssl_ctx;
mem = OSSL_HTTP_get(url, proxy, no_proxy, NULL /* bio */, NULL /* rbio */,
app_http_tls_cb, &info, 0 /* buf_size */, headers,
expected_content_type, 1 /* expect_asn1 */,
OSSL_HTTP_DEFAULT_MAX_RESP_LEN, timeout);
resp = ASN1_item_d2i_bio(it, mem, NULL);
BIO_free(mem);
end:
OPENSSL_free(server);
OPENSSL_free(port);
return resp;
}
ASN1_VALUE *app_http_post_asn1(const char *host, const char *port,
const char *path, const char *proxy,
const char *no_proxy, SSL_CTX *ssl_ctx,
const STACK_OF(CONF_VALUE) *headers,
const char *content_type,
ASN1_VALUE *req, const ASN1_ITEM *req_it,
const char *expected_content_type,
long timeout, const ASN1_ITEM *rsp_it)
{
int use_ssl = ssl_ctx != NULL;
APP_HTTP_TLS_INFO info;
BIO *rsp, *req_mem = ASN1_item_i2d_mem_bio(req_it, req);
ASN1_VALUE *res;
if (req_mem == NULL)
return NULL;
info.server = host;
info.port = port;
info.use_proxy = /* workaround for callback design flaw, see #17088 */
OSSL_HTTP_adapt_proxy(proxy, no_proxy, host, use_ssl) != NULL;
info.timeout = timeout;
info.ssl_ctx = ssl_ctx;
rsp = OSSL_HTTP_transfer(NULL, host, port, path, use_ssl,
proxy, no_proxy, NULL /* bio */, NULL /* rbio */,
app_http_tls_cb, &info,
0 /* buf_size */, headers, content_type, req_mem,
expected_content_type, 1 /* expect_asn1 */,
OSSL_HTTP_DEFAULT_MAX_RESP_LEN, timeout,
0 /* keep_alive */);
BIO_free(req_mem);
res = ASN1_item_d2i_bio(rsp_it, rsp, NULL);
BIO_free(rsp);
return res;
}
#endif
/*
* Platform-specific sections
*/
#if defined(_WIN32)
# ifdef fileno
# undef fileno
# define fileno(a) (int)_fileno(a)
# endif
# include <windows.h>
# include <tchar.h>
static int WIN32_rename(const char *from, const char *to)
{
TCHAR *tfrom = NULL, *tto;
DWORD err;
int ret = 0;
if (sizeof(TCHAR) == 1) {
tfrom = (TCHAR *)from;
tto = (TCHAR *)to;
} else { /* UNICODE path */
size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
tfrom = malloc(sizeof(*tfrom) * (flen + tlen));
if (tfrom == NULL)
goto err;
tto = tfrom + flen;
# if !defined(_WIN32_WCE) || _WIN32_WCE >= 101
if (!MultiByteToWideChar(CP_ACP, 0, from, (int)flen, (WCHAR *)tfrom, (int)flen))
# endif
for (i = 0; i < flen; i++)
tfrom[i] = (TCHAR)from[i];
# if !defined(_WIN32_WCE) || _WIN32_WCE >= 101
if (!MultiByteToWideChar(CP_ACP, 0, to, (int)tlen, (WCHAR *)tto, (int)tlen))
# endif
for (i = 0; i < tlen; i++)
tto[i] = (TCHAR)to[i];
}
if (MoveFile(tfrom, tto))
goto ok;
err = GetLastError();
if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
if (DeleteFile(tto) && MoveFile(tfrom, tto))
goto ok;
err = GetLastError();
}
if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
errno = ENOENT;
else if (err == ERROR_ACCESS_DENIED)
errno = EACCES;
else
errno = EINVAL; /* we could map more codes... */
err:
ret = -1;
ok:
if (tfrom != NULL && tfrom != (TCHAR *)from)
free(tfrom);
return ret;
}
#endif
/* app_tminterval section */
#if defined(_WIN32)
double app_tminterval(int stop, int usertime)
{
FILETIME now;
double ret = 0;
static ULARGE_INTEGER tmstart;
static int warning = 1;
int use_GetSystemTime = 1;
# ifdef _WIN32_WINNT
static HANDLE proc = NULL;
if (proc == NULL) {
if (check_winnt())
proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
GetCurrentProcessId());
if (proc == NULL)
proc = (HANDLE) - 1;
}
if (usertime && proc != (HANDLE) - 1) {
FILETIME junk;
GetProcessTimes(proc, &junk, &junk, &junk, &now);
use_GetSystemTime = 0;
}
# endif
if (use_GetSystemTime) {
SYSTEMTIME systime;
if (usertime && warning) {
BIO_printf(bio_err, "To get meaningful results, run "
"this program on idle system.\n");
warning = 0;
}
GetSystemTime(&systime);
SystemTimeToFileTime(&systime, &now);
}
if (stop == TM_START) {
tmstart.u.LowPart = now.dwLowDateTime;
tmstart.u.HighPart = now.dwHighDateTime;
} else {
ULARGE_INTEGER tmstop;
tmstop.u.LowPart = now.dwLowDateTime;
tmstop.u.HighPart = now.dwHighDateTime;
ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
}
return ret;
}
#elif defined(OPENSSL_SYS_VXWORKS)
# include <time.h>
double app_tminterval(int stop, int usertime)
{
double ret = 0;
# ifdef CLOCK_REALTIME
static struct timespec tmstart;
struct timespec now;
# else
static unsigned long tmstart;
unsigned long now;
# endif
static int warning = 1;
if (usertime && warning) {
BIO_printf(bio_err, "To get meaningful results, run "
"this program on idle system.\n");
warning = 0;
}
# ifdef CLOCK_REALTIME
clock_gettime(CLOCK_REALTIME, &now);
if (stop == TM_START)
tmstart = now;
else
ret = ((now.tv_sec + now.tv_nsec * 1e-9)
- (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
# else
now = tickGet();
if (stop == TM_START)
tmstart = now;
else
ret = (now - tmstart) / (double)sysClkRateGet();
# endif
return ret;
}
#elif defined(_SC_CLK_TCK) /* by means of unistd.h */
# include <sys/times.h>
double app_tminterval(int stop, int usertime)
{
double ret = 0;
struct tms rus;
clock_t now = times(&rus);
static clock_t tmstart;
if (usertime)
now = rus.tms_utime;
if (stop == TM_START) {
tmstart = now;
} else {
long int tck = sysconf(_SC_CLK_TCK);
ret = (now - tmstart) / (double)tck;
}
return ret;
}
#else
# include <sys/time.h>
# include <sys/resource.h>
double app_tminterval(int stop, int usertime)
{
double ret = 0;
struct rusage rus;
struct timeval now;
static struct timeval tmstart;
if (usertime)
getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
else
gettimeofday(&now, NULL);
if (stop == TM_START)
tmstart = now;
else
ret = ((now.tv_sec + now.tv_usec * 1e-6)
- (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
return ret;
}
#endif
int app_access(const char *name, int flag)
{
#ifdef _WIN32
return _access(name, flag);
#else
return access(name, flag);
#endif
}
int app_isdir(const char *name)
{
return opt_isdir(name);
}
/* raw_read|write section */
#if defined(__VMS)
# include "vms_term_sock.h"
static int stdin_sock = -1;
static void close_stdin_sock(void)
{
TerminalSocket(TERM_SOCK_DELETE, &stdin_sock);
}
int fileno_stdin(void)
{
if (stdin_sock == -1) {
TerminalSocket(TERM_SOCK_CREATE, &stdin_sock);
atexit(close_stdin_sock);
}
return stdin_sock;
}
#else
int fileno_stdin(void)
{
return fileno(stdin);
}
#endif
int fileno_stdout(void)
{
return fileno(stdout);
}
#if defined(_WIN32) && defined(STD_INPUT_HANDLE)
int raw_read_stdin(void *buf, int siz)
{
DWORD n;
if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
return n;
else
return -1;
}
#elif defined(__VMS)
# include <sys/socket.h>
int raw_read_stdin(void *buf, int siz)
{
return recv(fileno_stdin(), buf, siz, 0);
}
#else
int raw_read_stdin(void *buf, int siz)
{
return read(fileno_stdin(), buf, siz);
}
#endif
#if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
int raw_write_stdout(const void *buf, int siz)
{
DWORD n;
if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
return n;
else
return -1;
}
#elif defined(OPENSSL_SYS_TANDEM) && defined(OPENSSL_THREADS) \
&& defined(_SPT_MODEL_)
int raw_write_stdout(const void *buf, int siz)
{
return write(fileno(stdout), (void *)buf, siz);
}
#else
int raw_write_stdout(const void *buf, int siz)
{
return write(fileno_stdout(), buf, siz);
}
#endif
/*
* Centralized handling of input and output files with format specification
* The format is meant to show what the input and output is supposed to be,
* and is therefore a show of intent more than anything else. However, it
* does impact behavior on some platforms, such as differentiating between
* text and binary input/output on non-Unix platforms
*/
BIO *dup_bio_in(int format)
{
return BIO_new_fp(stdin,
BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
}
BIO *dup_bio_out(int format)
{
BIO *b = BIO_new_fp(stdout,
BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
#ifdef OPENSSL_SYS_VMS
if (b != NULL && FMT_istext(format)) {
BIO *btmp = BIO_new(BIO_f_linebuffer());
if (btmp == NULL) {
BIO_free(b);
return NULL;
}
b = BIO_push(btmp, b);
}
#endif
return b;
}
BIO *dup_bio_err(int format)
{
BIO *b = BIO_new_fp(stderr,
BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
#ifdef OPENSSL_SYS_VMS
if (b != NULL && FMT_istext(format)) {
BIO *btmp = BIO_new(BIO_f_linebuffer());
if (btmp == NULL) {
BIO_free(b);
return NULL;
}
b = BIO_push(btmp, b);
}
#endif
return b;
}
void unbuffer(FILE *fp)
{
/*
* On VMS, setbuf() will only take 32-bit pointers, and a compilation
* with /POINTER_SIZE=64 will give off a MAYLOSEDATA2 warning here.
* However, we trust that the C RTL will never give us a FILE pointer
* above the first 4 GB of memory, so we simply turn off the warning
* temporarily.
*/
#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
# pragma environment save
# pragma message disable maylosedata2
#endif
setbuf(fp, NULL);
#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
# pragma environment restore
#endif
}
static const char *modestr(char mode, int format)
{
OPENSSL_assert(mode == 'a' || mode == 'r' || mode == 'w');
switch (mode) {
case 'a':
return FMT_istext(format) ? "a" : "ab";
case 'r':
return FMT_istext(format) ? "r" : "rb";
case 'w':
return FMT_istext(format) ? "w" : "wb";
}
/* The assert above should make sure we never reach this point */
return NULL;
}
static const char *modeverb(char mode)
{
switch (mode) {
case 'a':
return "appending";
case 'r':
return "reading";
case 'w':
return "writing";
}
return "(doing something)";
}
/*
* Open a file for writing, owner-read-only.
*/
BIO *bio_open_owner(const char *filename, int format, int private)
{
FILE *fp = NULL;
BIO *b = NULL;
int textmode, bflags;
#ifndef OPENSSL_NO_POSIX_IO
int fd = -1, mode;
#endif
if (!private || filename == NULL || strcmp(filename, "-") == 0)
return bio_open_default(filename, 'w', format);
textmode = FMT_istext(format);
#ifndef OPENSSL_NO_POSIX_IO
mode = O_WRONLY;
# ifdef O_CREAT
mode |= O_CREAT;
# endif
# ifdef O_TRUNC
mode |= O_TRUNC;
# endif
if (!textmode) {
# ifdef O_BINARY
mode |= O_BINARY;
# elif defined(_O_BINARY)
mode |= _O_BINARY;
# endif
}
# ifdef OPENSSL_SYS_VMS
/*
* VMS doesn't have O_BINARY, it just doesn't make sense. But,
* it still needs to know that we're going binary, or fdopen()
* will fail with "invalid argument"... so we tell VMS what the
* context is.
*/
if (!textmode)
fd = open(filename, mode, 0600, "ctx=bin");
else
# endif
fd = open(filename, mode, 0600);
if (fd < 0)
goto err;
fp = fdopen(fd, modestr('w', format));
#else /* OPENSSL_NO_POSIX_IO */
/* Have stdio but not Posix IO, do the best we can */
fp = fopen(filename, modestr('w', format));
#endif /* OPENSSL_NO_POSIX_IO */
if (fp == NULL)
goto err;
bflags = BIO_CLOSE;
if (textmode)
bflags |= BIO_FP_TEXT;
b = BIO_new_fp(fp, bflags);
if (b != NULL)
return b;
err:
BIO_printf(bio_err, "%s: Can't open \"%s\" for writing, %s\n",
opt_getprog(), filename, strerror(errno));
ERR_print_errors(bio_err);
/* If we have fp, then fdopen took over fd, so don't close both. */
if (fp != NULL)
fclose(fp);
#ifndef OPENSSL_NO_POSIX_IO
else if (fd >= 0)
close(fd);
#endif
return NULL;
}
static BIO *bio_open_default_(const char *filename, char mode, int format,
int quiet)
{
BIO *ret;
if (filename == NULL || strcmp(filename, "-") == 0) {
ret = mode == 'r' ? dup_bio_in(format) : dup_bio_out(format);
if (quiet) {
ERR_clear_error();
return ret;
}
if (ret != NULL)
return ret;
BIO_printf(bio_err,
"Can't open %s, %s\n",
mode == 'r' ? "stdin" : "stdout", strerror(errno));
} else {
ret = BIO_new_file(filename, modestr(mode, format));
if (quiet) {
ERR_clear_error();
return ret;
}
if (ret != NULL)
return ret;
BIO_printf(bio_err,
"Can't open \"%s\" for %s, %s\n",
filename, modeverb(mode), strerror(errno));
}
ERR_print_errors(bio_err);
return NULL;
}
BIO *bio_open_default(const char *filename, char mode, int format)
{
return bio_open_default_(filename, mode, format, 0);
}
BIO *bio_open_default_quiet(const char *filename, char mode, int format)
{
return bio_open_default_(filename, mode, format, 1);
}
int mem_bio_to_file(BIO *in, const char *filename, int format, int private)
{
int rv = 0, ret = 0;
BIO *out = NULL;
BUF_MEM *mem_buffer = NULL;
rv = BIO_get_mem_ptr(in, &mem_buffer);
if (rv <= 0) {
BIO_puts(bio_err, "Error reading mem buffer\n");
goto end;
}
out = bio_open_owner(filename, format, private);
if (out == NULL)
goto end;
rv = BIO_write(out, mem_buffer->data, (int)mem_buffer->length);
if (rv < 0 || (size_t)rv != mem_buffer->length)
BIO_printf(bio_err, "Error writing to output file: '%s'\n", filename);
else
ret = 1;
end:
if (!ret)
ERR_print_errors(bio_err);
BIO_free_all(out);
return ret;
}
void wait_for_async(SSL *s)
{
/* On Windows select only works for sockets, so we simply don't wait */
#ifndef OPENSSL_SYS_WINDOWS
int width = 0;
fd_set asyncfds;
OSSL_ASYNC_FD *fds;
size_t numfds;
size_t i;
if (!SSL_get_all_async_fds(s, NULL, &numfds))
return;
if (numfds == 0)
return;
fds = app_malloc(sizeof(OSSL_ASYNC_FD) * numfds, "allocate async fds");
if (!SSL_get_all_async_fds(s, fds, &numfds)) {
OPENSSL_free(fds);
return;
}
FD_ZERO(&asyncfds);
for (i = 0; i < numfds; i++) {
if (width <= (int)fds[i])
width = (int)fds[i] + 1;
openssl_fdset((int)fds[i], &asyncfds);
}
select(width, (void *)&asyncfds, NULL, NULL, NULL);
OPENSSL_free(fds);
#endif
}
/* if OPENSSL_SYS_WINDOWS is defined then so is OPENSSL_SYS_MSDOS */
#if defined(OPENSSL_SYS_MSDOS)
int has_stdin_waiting(void)
{
# if defined(OPENSSL_SYS_WINDOWS)
HANDLE inhand = GetStdHandle(STD_INPUT_HANDLE);
DWORD events = 0;
INPUT_RECORD inputrec;
DWORD insize = 1;
BOOL peeked;
if (inhand == INVALID_HANDLE_VALUE) {
return 0;
}
peeked = PeekConsoleInput(inhand, &inputrec, insize, &events);
if (!peeked) {
/* Probably redirected input? _kbhit() does not work in this case */
if (!feof(stdin)) {
return 1;
}
return 0;
}
# endif
return _kbhit();
}
#endif
/* Corrupt a signature by modifying final byte */
void corrupt_signature(const ASN1_STRING *signature)
{
unsigned char *s = signature->data;
s[signature->length - 1] ^= 0x1;
}
int check_cert_time_string(const char *time, const char *desc)
{
if (time == NULL || strcmp(time, "today") == 0
|| ASN1_TIME_set_string_X509(NULL, time))
return 1;
BIO_printf(bio_err,
"%s is invalid, it should be \"today\" or have format [CC]YYMMDDHHMMSSZ\n",
desc);
return 0;
}
int set_cert_times(X509 *x, const char *startdate, const char *enddate,
int days, int strict_compare_times)
{
if (!check_cert_time_string(startdate, "start date"))
return 0;
if (!check_cert_time_string(enddate, "end date"))
return 0;
if (startdate == NULL || strcmp(startdate, "today") == 0) {
if (X509_gmtime_adj(X509_getm_notBefore(x), 0) == NULL) {
BIO_printf(bio_err, "Error setting notBefore certificate field\n");
return 0;
}
} else {
if (!ASN1_TIME_set_string_X509(X509_getm_notBefore(x), startdate)) {
BIO_printf(bio_err, "Error setting notBefore certificate field\n");
return 0;
}
}
if (enddate != NULL && strcmp(enddate, "today") == 0) {
enddate = NULL;
days = 0;
}
if (enddate == NULL) {
if (X509_time_adj_ex(X509_getm_notAfter(x), days, 0, NULL) == NULL) {
BIO_printf(bio_err, "Error setting notAfter certificate field\n");
return 0;
}
} else if (!ASN1_TIME_set_string_X509(X509_getm_notAfter(x), enddate)) {
BIO_printf(bio_err, "Error setting notAfter certificate field\n");
return 0;
}
if (ASN1_TIME_compare(X509_get0_notAfter(x), X509_get0_notBefore(x)) < 0) {
BIO_printf(bio_err, "%s: end date before start date\n",
strict_compare_times ? "Error" : "Warning");
if (strict_compare_times)
return 0;
}
return 1;
}
int set_crl_lastupdate(X509_CRL *crl, const char *lastupdate)
{
int ret = 0;
ASN1_TIME *tm = ASN1_TIME_new();
if (tm == NULL)
goto end;
if (lastupdate == NULL) {
if (X509_gmtime_adj(tm, 0) == NULL)
goto end;
} else {
if (!ASN1_TIME_set_string_X509(tm, lastupdate))
goto end;
}
if (!X509_CRL_set1_lastUpdate(crl, tm))
goto end;
ret = 1;
end:
ASN1_TIME_free(tm);
return ret;
}
int set_crl_nextupdate(X509_CRL *crl, const char *nextupdate,
long days, long hours, long secs)
{
int ret = 0;
ASN1_TIME *tm = ASN1_TIME_new();
if (tm == NULL)
goto end;
if (nextupdate == NULL) {
if (X509_time_adj_ex(tm, days, hours * 60 * 60 + secs, NULL) == NULL)
goto end;
} else {
if (!ASN1_TIME_set_string_X509(tm, nextupdate))
goto end;
}
if (!X509_CRL_set1_nextUpdate(crl, tm))
goto end;
ret = 1;
end:
ASN1_TIME_free(tm);
return ret;
}
void make_uppercase(char *string)
{
int i;
for (i = 0; string[i] != '\0'; i++)
string[i] = toupper((unsigned char)string[i]);
}
OSSL_PARAM *app_params_new_from_opts(STACK_OF(OPENSSL_STRING) *opts,
const OSSL_PARAM *paramdefs)
{
OSSL_PARAM *params = NULL;
size_t sz = (size_t)sk_OPENSSL_STRING_num(opts);
size_t params_n;
char *opt = "", *stmp, *vtmp = NULL;
int found = 1;
if (opts == NULL)
return NULL;
params = OPENSSL_calloc(sz + 1, sizeof(OSSL_PARAM));
if (params == NULL)
return NULL;
for (params_n = 0; params_n < sz; params_n++) {
opt = sk_OPENSSL_STRING_value(opts, (int)params_n);
if ((stmp = OPENSSL_strdup(opt)) == NULL
|| (vtmp = strchr(stmp, ':')) == NULL)
goto err;
/* Replace ':' with 0 to terminate the string pointed to by stmp */
*vtmp = 0;
/* Skip over the separator so that vmtp points to the value */
vtmp++;
if (!OSSL_PARAM_allocate_from_text(&params[params_n], paramdefs,
stmp, vtmp, strlen(vtmp), &found))
goto err;
OPENSSL_free(stmp);
}
params[params_n] = OSSL_PARAM_construct_end();
return params;
err:
OPENSSL_free(stmp);
BIO_printf(bio_err, "Parameter %s '%s'\n", found ? "error" : "unknown",
opt);
ERR_print_errors(bio_err);
app_params_free(params);
return NULL;
}
void app_params_free(OSSL_PARAM *params)
{
int i;
if (params != NULL) {
for (i = 0; params[i].key != NULL; ++i)
OPENSSL_free(params[i].data);
OPENSSL_free(params);
}
}
EVP_PKEY *app_keygen(EVP_PKEY_CTX *ctx, const char *alg, int bits, int verbose)
{
EVP_PKEY *res = NULL;
if (verbose && alg != NULL) {
BIO_printf(bio_err, "Generating %s key", alg);
if (bits > 0)
BIO_printf(bio_err, " with %d bits\n", bits);
else
BIO_printf(bio_err, "\n");
}
if (!RAND_status())
BIO_printf(bio_err, "Warning: generating random key material may take a long time\n"
"if the system has a poor entropy source\n");
if (EVP_PKEY_keygen(ctx, &res) <= 0)
BIO_printf(bio_err, "%s: Error generating %s key\n", opt_getprog(),
alg != NULL ? alg : "asymmetric");
return res;
}
EVP_PKEY *app_paramgen(EVP_PKEY_CTX *ctx, const char *alg)
{
EVP_PKEY *res = NULL;
if (!RAND_status())
BIO_printf(bio_err, "Warning: generating random key parameters may take a long time\n"
"if the system has a poor entropy source\n");
if (EVP_PKEY_paramgen(ctx, &res) <= 0)
BIO_printf(bio_err, "%s: Generating %s key parameters failed\n",
opt_getprog(), alg != NULL ? alg : "asymmetric");
return res;
}
/*
* Return non-zero if the legacy path is still an option.
* This decision is based on the global command line operations and the
* behaviour thus far.
*/
int opt_legacy_okay(void)
{
int provider_options = opt_provider_option_given();
int libctx = app_get0_libctx() != NULL || app_get0_propq() != NULL;
/*
* Having a provider option specified or a custom library context or
* property query, is a sure sign we're not using legacy.
*/
if (provider_options || libctx)
return 0;
return 1;
}
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