Edit
IABSD.fr/src/usr.bin/openssl/apps.c
guenther
- usr.bin/openssl/apps.c
-
/* $OpenBSD: apps.c,v 1.54 2019/07/14 03:30:45 guenther 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/safestack.h> #include <openssl/x509.h> #include <openssl/x509v3.h> #include <openssl/rsa.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); #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA) /* Looks like this stuff is worth moving into separate function */ static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file, const char *key_descrip, int format); #endif 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 == 'N') || (*s == 'n')) return (FORMAT_NETSCAPE); 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 chopup_args(ARGS *arg, char *buf, int *argc, char **argv[]) { int num, i; char *p; *argc = 0; *argv = NULL; i = 0; if (arg->count == 0) { arg->count = 20; arg->data = reallocarray(NULL, arg->count, sizeof(char *)); if (arg->data == NULL) return 0; } for (i = 0; i < arg->count; i++) arg->data[i] = NULL; num = 0; p = buf; for (;;) { /* first scan over white space */ if (!*p) break; while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n'))) p++; if (!*p) break; /* The start of something good :-) */ if (num >= arg->count) { char **tmp_p; int tlen = arg->count + 20; tmp_p = reallocarray(arg->data, tlen, sizeof(char *)); if (tmp_p == NULL) return 0; arg->data = tmp_p; arg->count = tlen; /* initialize newly allocated data */ for (i = num; i < arg->count; i++) arg->data[i] = NULL; } arg->data[num++] = p; /* now look for the end of this */ if ((*p == '\'') || (*p == '\"')) { /* scan for closing * quote */ i = *(p++); arg->data[num - 1]++; /* jump over quote */ while (*p && (*p != i)) p++; *p = '\0'; } else { while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n'))) p++; if (*p == '\0') p--; else *p = '\0'; } p++; } *argc = num; *argv = arg->data; return (1); } 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_NETSCAPE) { NETSCAPE_X509 *nx; nx = ASN1_item_d2i_bio(&NETSCAPE_X509_it, cert, NULL); if (nx == NULL) goto end; if ((strncmp(NETSCAPE_CERT_HDR, (char *) nx->header->data, nx->header->length) != 0)) { NETSCAPE_X509_free(nx); BIO_printf(err, "Error reading header on certificate\n"); goto end; } x = nx->cert; nx->cert = NULL; NETSCAPE_X509_free(nx); } 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); } #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA) else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC) pkey = load_netscape_key(err, key, file, key_descrip, format); #endif 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_RC4) && !defined(OPENSSL_NO_RSA) else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC) pkey = load_netscape_key(err, key, file, key_descrip, format); #endif #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); } #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA) static EVP_PKEY * load_netscape_key(BIO *err, BIO *key, const char *file, const char *key_descrip, int format) { EVP_PKEY *pkey; BUF_MEM *buf; RSA *rsa; const unsigned char *p; int size, i; buf = BUF_MEM_new(); pkey = EVP_PKEY_new(); size = 0; if (buf == NULL || pkey == NULL) goto error; for (;;) { if (!BUF_MEM_grow_clean(buf, size + 1024 * 10)) goto error; i = BIO_read(key, &(buf->data[size]), 1024 * 10); size += i; if (i == 0) break; if (i < 0) { BIO_printf(err, "Error reading %s %s", key_descrip, file); goto error; } } p = (unsigned char *) buf->data; rsa = d2i_RSA_NET(NULL, &p, (long) size, NULL, (format == FORMAT_IISSGC ? 1 : 0)); if (rsa == NULL) goto error; BUF_MEM_free(buf); EVP_PKEY_set1_RSA(pkey, rsa); return pkey; error: BUF_MEM_free(buf); EVP_PKEY_free(pkey); return NULL; } #endif /* ndef OPENSSL_NO_RC4 */ 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} }; return set_multi_opts(flags, arg, ex_tbl); } 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() { 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) { 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, "-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; } static void nodes_print(BIO *out, const char *name, STACK_OF(X509_POLICY_NODE) *nodes) { X509_POLICY_NODE *node; int i; BIO_printf(out, "%s Policies:", name); if (nodes) { BIO_puts(out, "\n"); for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) { node = sk_X509_POLICY_NODE_value(nodes, i); X509_POLICY_NODE_print(out, node, 2); } } else BIO_puts(out, " <empty>\n"); } void policies_print(BIO *out, X509_STORE_CTX *ctx) { X509_POLICY_TREE *tree; int explicit_policy; int free_out = 0; if (out == NULL) { out = BIO_new_fp(stderr, BIO_NOCLOSE); free_out = 1; } tree = X509_STORE_CTX_get0_policy_tree(ctx); explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx); BIO_printf(out, "Require explicit Policy: %s\n", explicit_policy ? "True" : "False"); nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree)); nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree)); if (free_out) BIO_free(out); } /* * 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; 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")); }