From patchwork Sun Oct 7 04:04:13 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonio Quartulli X-Patchwork-Id: 498 Return-Path: Delivered-To: patchwork@openvpn.net Delivered-To: patchwork@openvpn.net Received: from director12.mail.ord1d.rsapps.net ([172.31.255.6]) by backend30.mail.ord1d.rsapps.net with LMTP id ENs6GyshululXQAAIUCqbw for ; Sun, 07 Oct 2018 11:07:23 -0400 Received: from proxy13.mail.iad3b.rsapps.net ([172.31.255.6]) by director12.mail.ord1d.rsapps.net with LMTP id wIM6GCshuluERQAAIasKDg ; Sun, 07 Oct 2018 11:07:23 -0400 Received: from smtp19.gate.iad3b ([172.31.255.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) by proxy13.mail.iad3b.rsapps.net with LMTP id eIGQESshulvnMAAAvUvv+w ; Sun, 07 Oct 2018 11:07:23 -0400 X-Spam-Threshold: 95 X-Spam-Score: 0 X-Spam-Flag: NO X-Virus-Scanned: OK X-Orig-To: openvpnslackdevel@openvpn.net X-Originating-Ip: [216.105.38.7] Authentication-Results: smtp19.gate.iad3b.rsapps.net; iprev=pass policy.iprev="216.105.38.7"; spf=pass smtp.mailfrom="openvpn-devel-bounces@lists.sourceforge.net" smtp.helo="lists.sourceforge.net"; dkim=fail (signature verification failed) header.d=sourceforge.net; dkim=fail (signature verification failed) header.d=sf.net; dmarc=none (p=nil; dis=none) header.from=unstable.cc X-Suspicious-Flag: YES X-Classification-ID: b102ebd2-ca42-11e8-bce3-525400cbaf6c-1-1 Received: from [216.105.38.7] ([216.105.38.7:1363] helo=lists.sourceforge.net) by smtp19.gate.iad3b.rsapps.net (envelope-from ) (ecelerity 4.2.38.62370 r(:)) with ESMTPS (cipher=DHE-RSA-AES256-GCM-SHA384) id 89/61-27921-A212ABB5; Sun, 07 Oct 2018 11:07:22 -0400 Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1g9AdH-0006Uw-7T; Sun, 07 Oct 2018 15:06:11 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1g9AdF-0006Up-NQ for openvpn-devel@lists.sourceforge.net; Sun, 07 Oct 2018 15:06:09 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=eIcq9Zgh7xeUQl0yD7SOWi6MXkDfdgxYADvi8K/Tio4=; b=CHFhAUvPPK6KHxbFbN3xwK7mSV q81t/nMbvMg/3ED8U94VSli78pOYxy7u7sPvuSjF7W2tAdO9hd6PLzDJEevZiF0ObnFFlRYQW87f7 lvlvscdon/dmkY5kILRnse0JAcStE1omHPe+2zzDn8NmVhppzzq1YNWGNIgFvOC6RvDE=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=eIcq9Zgh7xeUQl0yD7SOWi6MXkDfdgxYADvi8K/Tio4=; b=BgMJFlA0KE6CsOaZXaMwcxYxar zNXp6LU9WAQyajPewQuVYSy8mLKEPIyzRDkls/9f+XR1eZCF/7khBoo/No8AeVYWvNMvS5VXAEqbL XFRXKLeW3c9xdkIMrNoNYx+MsEocRMJXRobjxKlABqfmpk+r+WxWxA/skTgZKpO1clO0=; Received: from s2.neomailbox.net ([5.148.176.60]) by sfi-mx-3.v28.lw.sourceforge.com with esmtps (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) id 1g9AdB-00DtTR-MD for openvpn-devel@lists.sourceforge.net; Sun, 07 Oct 2018 15:06:09 +0000 From: Antonio Quartulli To: openvpn-devel@lists.sourceforge.net Date: Sun, 7 Oct 2018 23:04:13 +0800 Message-Id: <20181007150413.1455-1-a@unstable.cc> In-Reply-To: <20171202152144.22426-1-a@unstable.cc> References: <20171202152144.22426-1-a@unstable.cc> MIME-Version: 1.0 X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [5.148.176.60 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record X-Headers-End: 1g9AdB-00DtTR-MD Subject: [Openvpn-devel] [PATCH v8] convert *_inline attributes to bool X-BeenThere: openvpn-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Antonio Quartulli Errors-To: openvpn-devel-bounces@lists.sourceforge.net X-getmail-retrieved-from-mailbox: Inbox Carrying around the INLINE_TAG is not really efficient, because it requires a strcmp() to be performed every time we want to understand if the data is stored inline or not. Convert all the *_inline attributes to bool to make the logic easier and checks more efficient. Signed-off-by: Antonio Quartulli --- Changes from v7: - rebased on top of latest master (68e0b9db) Changes from v6: - rebased on top of latest master Changes from v5: - fix function invocation alignment in options.c:options_postprocess_filechecks() - fix typ0 in function invocation in options.c:options_postprocess_filechecks() - fix doxygen comment for function tls_ctx_reload_crl() in ssl.c Changes from v4: - remove newline accidentally added in v4 Changes from v3: - some code style adjustment in options.c:check_inline_file() - move print_if_inline() from misc.c to crypto.c and rename it to print_key_filename() - make comment of check_file_access_inline() and check_file_access_chroot_inline() doxygen compliant - remove *is_inline argument in check_inline_file() and use its return value instead - move declarations of is_inline to narrower scope in options.c - move return type of plugin_option_list_add() to its own line Changes from v2: - fix indentation in ssl_openssl.c - do not attempt to push inline'd options - do not attempt to parse inline'd plugin - introduce check_file_access_inline() and check_file_access_chroot_inline() - introduce OPT_P_INLINE to specify when an option is allowed to be inline. Options not having this permission will fail to be parsed if is_inline is true Changes from v1: - remove the INLINE_TAG from the options parsing logic at all. Now a boolean variable is passed around - add print_if_inline() helper function (to misc.c/h) to make sure we never print the inline data, but only the INLINE tag. Such function checks also for NULL pointers - make sure print_if_inline() is always used when printing possibly inline data - remove the INLINE_TAG from the options parsing logic at all. Now a boolean variable is passed around - fix alignment error in comment - remove CHKACC_INLINE from check_file_access() logic: this function is now not invoked at all in case of inline data src/openvpn/crypto.c | 39 +++-- src/openvpn/crypto.h | 17 ++- src/openvpn/misc.c | 6 +- src/openvpn/misc.h | 3 +- src/openvpn/options.c | 300 +++++++++++++++++++++----------------- src/openvpn/options.h | 25 ++-- src/openvpn/plugin.c | 5 +- src/openvpn/plugin.h | 3 +- src/openvpn/push.c | 2 +- src/openvpn/push.h | 3 +- src/openvpn/ssl.c | 4 +- src/openvpn/ssl_backend.h | 55 +++---- src/openvpn/ssl_common.h | 2 +- src/openvpn/ssl_mbedtls.c | 61 ++++---- src/openvpn/ssl_openssl.c | 85 ++++++----- src/openvpn/tls_crypt.c | 2 +- src/openvpn/tls_crypt.h | 9 +- 17 files changed, 344 insertions(+), 277 deletions(-) diff --git a/src/openvpn/crypto.c b/src/openvpn/crypto.c index c8d95f3b..dc5b8f1b 100644 --- a/src/openvpn/crypto.c +++ b/src/openvpn/crypto.c @@ -1174,25 +1174,25 @@ test_crypto(struct crypto_options *co, struct frame *frame) void crypto_read_openvpn_key(const struct key_type *key_type, - struct key_ctx_bi *ctx, const char *key_file, const char *key_inline, - const int key_direction, const char *key_name, const char *opt_name) + struct key_ctx_bi *ctx, const char *key_file, + bool key_inline, const int key_direction, + const char *key_name, const char *opt_name) { struct key2 key2; struct key_direction_state kds; + unsigned int flags = RKF_MUST_SUCCEED; if (key_inline) { - read_key_file(&key2, key_inline, RKF_MUST_SUCCEED|RKF_INLINE); - } - else - { - read_key_file(&key2, key_file, RKF_MUST_SUCCEED); + flags |= RKF_INLINE; } + read_key_file(&key2, key_file, flags); if (key2.n != 2) { msg(M_ERR, "File '%s' does not have OpenVPN Static Key format. Using " - "free-form passphrase file is not supported anymore.", key_file); + "free-form passphrase file is not supported anymore.", + print_key_filename(key_file, key_inline)); } /* check for and fix highly unlikely key problems */ @@ -1226,7 +1226,6 @@ read_key_file(struct key2 *key2, const char *file, const unsigned int flags) struct buffer in; int size; uint8_t hex_byte[3] = {0, 0, 0}; - const char *error_filename = file; /* parse info */ const unsigned char *cp; @@ -1264,7 +1263,6 @@ read_key_file(struct key2 *key2, const char *file, const unsigned int flags) { size = strlen(file) + 1; buf_set_read(&in, (const uint8_t *)file, size); - error_filename = INLINE_FILE_TAG; } else /* 'file' is a filename which refers to a file containing the ascii key */ { @@ -1358,7 +1356,9 @@ read_key_file(struct key2 *key2, const char *file, const unsigned int flags) { msg(M_FATAL, (isprint(c) ? printable_char_fmt : unprintable_char_fmt), - c, line_num, error_filename, count, onekeylen, keylen); + c, line_num, + print_key_filename(file, flags & RKF_INLINE), count, + onekeylen, keylen); } } ++line_index; @@ -1379,13 +1379,15 @@ read_key_file(struct key2 *key2, const char *file, const unsigned int flags) if (!key2->n) { msg(M_FATAL, "Insufficient key material or header text not found in file '%s' (%d/%d/%d bytes found/min/max)", - error_filename, count, onekeylen, keylen); + print_key_filename(file, flags & RKF_INLINE), count, onekeylen, + keylen); } if (state != PARSE_FINISHED) { msg(M_FATAL, "Footer text not found in file '%s' (%d/%d/%d bytes found/min/max)", - error_filename, count, onekeylen, keylen); + print_key_filename(file, flags & RKF_INLINE), count, onekeylen, + keylen); } } @@ -1815,3 +1817,14 @@ translate_cipher_name_to_openvpn(const char *cipher_name) return pair->openvpn_name; } + +const char * +print_key_filename(const char *str, bool is_inline) +{ + if (is_inline) + { + return INLINE_FILE_TAG; + } + + return np(str); +} diff --git a/src/openvpn/crypto.h b/src/openvpn/crypto.h index f4b3dca3..bf54bb03 100644 --- a/src/openvpn/crypto.h +++ b/src/openvpn/crypto.h @@ -487,8 +487,9 @@ void key2_print(const struct key2 *k, const char *prefix1); void crypto_read_openvpn_key(const struct key_type *key_type, - struct key_ctx_bi *ctx, const char *key_file, const char *key_inline, - const int key_direction, const char *key_name, const char *opt_name); + struct key_ctx_bi *ctx, const char *key_file, + bool key_inline, const int key_direction, + const char *key_name, const char *opt_name); /* * Inline functions @@ -519,4 +520,16 @@ key_ctx_bi_defined(const struct key_ctx_bi *key) return key->encrypt.cipher || key->encrypt.hmac || key->decrypt.cipher || key->decrypt.hmac; } +/** + * To be used when printing a string that may contain inline data. + * + * If "is_inline" is true, return the inline tag. + * If "is_inline" is false and "str" is not NULL, return "str". + * Return the constant string "[NULL]" otherwise. + * + * @param str the original string to return when is_inline is false + * @param is_inline true when str contains an inline data of some sort + */ +const char *print_key_filename(const char *str, bool is_inline); + #endif /* CRYPTO_H */ diff --git a/src/openvpn/misc.c b/src/openvpn/misc.c index 71fa2135..a1067662 100644 --- a/src/openvpn/misc.c +++ b/src/openvpn/misc.c @@ -624,12 +624,12 @@ make_arg_copy(char **p, struct gc_arena *gc) } const char ** -make_extended_arg_array(char **p, struct gc_arena *gc) +make_extended_arg_array(char **p, bool is_inline, struct gc_arena *gc) { const int argc = string_array_len((const char **)p); - if (!strcmp(p[0], INLINE_FILE_TAG) && argc == 2) + if (is_inline) { - return make_inline_array(p[1], gc); + return make_inline_array(p[0], gc); } else if (argc == 0) { diff --git a/src/openvpn/misc.h b/src/openvpn/misc.h index 9d4601f0..ff6d6827 100644 --- a/src/openvpn/misc.h +++ b/src/openvpn/misc.h @@ -50,7 +50,8 @@ void save_inetd_socket_descriptor(void); const char **make_arg_array(const char *first, const char *parms, struct gc_arena *gc); -const char **make_extended_arg_array(char **p, struct gc_arena *gc); +const char **make_extended_arg_array(char **p, bool is_inline, + struct gc_arena *gc); /* prepend a random prefix to hostname */ const char *hostname_randomize(const char *hostname, struct gc_arena *gc); diff --git a/src/openvpn/options.c b/src/openvpn/options.c index 61fa9833..8ad3a67c 100644 --- a/src/openvpn/options.c +++ b/src/openvpn/options.c @@ -3115,9 +3115,8 @@ options_postprocess_mutate(struct options *o) #define CHKACC_FILE (1<<0) /** Check for a file/directory precense */ #define CHKACC_DIRPATH (1<<1) /** Check for directory precense where a file should reside */ #define CHKACC_FILEXSTWR (1<<2) /** If file exists, is it writable? */ -#define CHKACC_INLINE (1<<3) /** File is present if it's an inline file */ -#define CHKACC_ACPTSTDIN (1<<4) /** If filename is stdin, it's allowed and "exists" */ -#define CHKACC_PRIVATE (1<<5) /** Warn if this (private) file is group/others accessible */ +#define CHKACC_ACPTSTDIN (1<<3) /** If filename is stdin, it's allowed and "exists" */ +#define CHKACC_PRIVATE (1<<4) /** Warn if this (private) file is group/others accessible */ static bool check_file_access(const int type, const char *file, const int mode, const char *opt) @@ -3130,12 +3129,6 @@ check_file_access(const int type, const char *file, const int mode, const char * return false; } - /* If this may be an inline file, and the proper inline "filename" is set - no issues */ - if ((type & CHKACC_INLINE) && streq(file, INLINE_FILE_TAG) ) - { - return false; - } - /* If stdin is allowed and the file name is 'stdin', then do no * further checks as stdin is always available */ @@ -3240,6 +3233,38 @@ check_file_access_chroot(const char *chroot, const int type, const char *file, c return ret; } +/** + * A wrapper for check_file_access_chroot() that returns false immediately if + * the file is inline (and therefore there is no access to check) + */ +static bool +check_file_access_chroot_inline(bool is_inline, const char *chroot, + const int type, const char *file, + const int mode, const char *opt) +{ + if (is_inline) + { + return false; + } + + return check_file_access_chroot(chroot, type, file, mode, opt); +} + +/** + * A wrapper for check_file_access() that returns false immediately if the file + * is inline (and therefore there is no access to check) + */ +static bool +check_file_access_inline(bool is_inline, const int type, const char *file, + const int mode, const char *opt) +{ + if (is_inline) + { + return false; + } + + return check_file_access(type, file, mode, opt); +} /* * Verifies that the path in the "command" that comes after certain script options (e.g., --up) is a @@ -3304,31 +3329,47 @@ options_postprocess_filechecks(struct options *options) bool errs = false; /* ** SSL/TLS/crypto related files ** */ - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE, options->dh_file, R_OK, "--dh"); - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE, options->ca_file, R_OK, "--ca"); - errs |= check_file_access_chroot(options->chroot_dir, CHKACC_FILE, options->ca_path, R_OK, "--capath"); - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE, options->cert_file, R_OK, "--cert"); - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE, options->extra_certs_file, R_OK, - "--extra-certs"); + errs |= check_file_access_inline(options->dh_file_inline, CHKACC_FILE, + options->dh_file, R_OK, "--dh"); + + errs |= check_file_access_inline(options->ca_file_inline, CHKACC_FILE, + options->ca_file, R_OK, "--ca"); + + errs |= check_file_access_chroot(options->chroot_dir, CHKACC_FILE, + options->ca_path, R_OK, "--capath"); + + errs |= check_file_access_inline(options->cert_file_inline, CHKACC_FILE, + options->cert_file, R_OK, "--cert"); + + errs |= check_file_access_inline(options->extra_certs_file, CHKACC_FILE, + options->extra_certs_file, R_OK, + "--extra-certs"); + #ifdef MANAGMENT_EXTERNAL_KEY if (!(options->management_flags & MF_EXTERNAL_KEY)) #endif { - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE|CHKACC_PRIVATE, - options->priv_key_file, R_OK, "--key"); + errs |= check_file_access_inline(options->priv_key_file_inline, + CHKACC_FILE|CHKACC_PRIVATE, + options->priv_key_file, R_OK, "--key"); } - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE|CHKACC_PRIVATE, - options->pkcs12_file, R_OK, "--pkcs12"); + + errs |= check_file_access_inline(options->pkcs12_file_inline, + CHKACC_FILE|CHKACC_PRIVATE, + options->pkcs12_file, R_OK, "--pkcs12"); if (options->ssl_flags & SSLF_CRL_VERIFY_DIR) { - errs |= check_file_access_chroot(options->chroot_dir, CHKACC_FILE, options->crl_file, R_OK|X_OK, + errs |= check_file_access_chroot(options->chroot_dir, CHKACC_FILE, + options->crl_file, R_OK|X_OK, "--crl-verify directory"); } else { - errs |= check_file_access_chroot(options->chroot_dir, CHKACC_FILE|CHKACC_INLINE, - options->crl_file, R_OK, "--crl-verify"); + errs |= check_file_access_chroot_inline(options->crl_file_inline, + options->chroot_dir, + CHKACC_FILE, options->crl_file, + R_OK, "--crl-verify"); } ASSERT(options->connection_list); @@ -3336,16 +3377,20 @@ options_postprocess_filechecks(struct options *options) { struct connection_entry *ce = options->connection_list->array[i]; - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE|CHKACC_PRIVATE, - ce->tls_auth_file, R_OK, "--tls-auth"); - - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE|CHKACC_PRIVATE, - ce->tls_crypt_file, R_OK, "--tls-crypt"); - + errs |= check_file_access_inline(ce->tls_auth_file_inline, + CHKACC_FILE|CHKACC_PRIVATE, + ce->tls_auth_file, R_OK, + "--tls-auth"); + errs |= check_file_access_inline(ce->tls_crypt_inline, + CHKACC_FILE|CHKACC_PRIVATE, + ce->tls_crypt_file, R_OK, + "--tls-crypt"); } - errs |= check_file_access(CHKACC_FILE|CHKACC_INLINE|CHKACC_PRIVATE, - options->shared_secret_file, R_OK, "--secret"); + errs |= check_file_access_inline(options->shared_secret_file_inline, + CHKACC_FILE|CHKACC_PRIVATE, + options->shared_secret_file, R_OK, + "--secret"); errs |= check_file_access(CHKACC_DIRPATH|CHKACC_FILEXSTWR, options->packet_id_file, R_OK|W_OK, "--replay-persist"); @@ -4507,25 +4552,26 @@ read_inline_file(struct in_src *is, const char *close_tag, struct gc_arena *gc) static bool check_inline_file(struct in_src *is, char *p[], struct gc_arena *gc) { - bool ret = false; + bool is_inline = false; + if (p[0] && !p[1]) { char *arg = p[0]; if (arg[0] == '<' && arg[strlen(arg)-1] == '>') { struct buffer close_tag; - arg[strlen(arg)-1] = '\0'; - p[0] = string_alloc(arg+1, gc); - p[1] = string_alloc(INLINE_FILE_TAG, gc); + + arg[strlen(arg) - 1] = '\0'; + p[0] = string_alloc(arg + 1, gc); close_tag = alloc_buf(strlen(p[0]) + 4); buf_printf(&close_tag, "", p[0]); - p[2] = read_inline_file(is, BSTR(&close_tag), gc); - p[3] = NULL; + p[1] = read_inline_file(is, BSTR(&close_tag), gc); + p[2] = NULL; free_buf(&close_tag); - ret = true; + is_inline = true; } } - return ret; + return is_inline; } static bool @@ -4538,7 +4584,8 @@ check_inline_file_via_fp(FILE *fp, char *p[], struct gc_arena *gc) } static bool -check_inline_file_via_buf(struct buffer *multiline, char *p[], struct gc_arena *gc) +check_inline_file_via_buf(struct buffer *multiline, char *p[], + struct gc_arena *gc) { struct in_src is; is.type = IS_TYPE_BUF; @@ -4549,6 +4596,7 @@ check_inline_file_via_buf(struct buffer *multiline, char *p[], struct gc_arena * static void add_option(struct options *options, char *p[], + bool is_inline, const char *file, int line, const int level, @@ -4606,9 +4654,13 @@ read_config_file(struct options *options, } if (parse_line(line + offset, p, SIZE(p)-1, file, line_num, msglevel, &options->gc)) { + bool is_inline; + bypass_doubledash(&p[0]); - check_inline_file_via_fp(fp, p, &options->gc); - add_option(options, p, file, line_num, level, msglevel, permission_mask, option_types_found, es); + is_inline = check_inline_file_via_fp(fp, p, &options->gc); + add_option(options, p, is_inline, file, line_num, level, + msglevel, permission_mask, option_types_found, + es); } } if (fp != stdin) @@ -4651,9 +4703,12 @@ read_config_string(const char *prefix, ++line_num; if (parse_line(line, p, SIZE(p)-1, prefix, line_num, msglevel, &options->gc)) { + bool is_inline; + bypass_doubledash(&p[0]); - check_inline_file_via_buf(&multiline, p, &options->gc); - add_option(options, p, prefix, line_num, 0, msglevel, permission_mask, option_types_found, es); + is_inline = check_inline_file_via_buf(&multiline, p, &options->gc); + add_option(options, p, is_inline, prefix, line_num, 0, msglevel, + permission_mask, option_types_found, es); } CLEAR(p); } @@ -4684,7 +4739,8 @@ parse_argv(struct options *options, CLEAR(p); p[0] = "config"; p[1] = argv[1]; - add_option(options, p, NULL, 0, 0, msglevel, permission_mask, option_types_found, es); + add_option(options, p, false, NULL, 0, 0, msglevel, permission_mask, + option_types_found, es); } else { @@ -4718,7 +4774,8 @@ parse_argv(struct options *options, } } } - add_option(options, p, NULL, 0, 0, msglevel, permission_mask, option_types_found, es); + add_option(options, p, false, NULL, 0, 0, msglevel, permission_mask, + option_types_found, es); i += j - 1; } } @@ -4789,7 +4846,8 @@ apply_push_options(struct options *options, } if (parse_line(line, p, SIZE(p)-1, file, line_num, msglevel, &options->gc)) { - add_option(options, p, file, line_num, 0, msglevel, permission_mask, option_types_found, es); + add_option(options, p, false, file, line_num, 0, msglevel, + permission_mask, option_types_found, es); } } return true; @@ -4828,7 +4886,13 @@ options_string_import(struct options *options, #if P2MP -#define VERIFY_PERMISSION(mask) { if (!verify_permission(p[0], file, line, (mask), permission_mask, option_types_found, msglevel, options)) {goto err;}} +#define VERIFY_PERMISSION(mask) { \ + if (!verify_permission(p[0], file, line, (mask), permission_mask, \ + option_types_found, msglevel, options, is_inline))\ + { \ + goto err; \ + } \ +} static bool verify_permission(const char *name, @@ -4838,7 +4902,8 @@ verify_permission(const char *name, const unsigned int allowed, unsigned int *found, const int msglevel, - struct options *options) + struct options *options, + bool is_inline) { if (!(type & allowed)) { @@ -4846,6 +4911,13 @@ verify_permission(const char *name, return false; } + if (is_inline && !(type & OPT_P_INLINE)) + { + msg(msglevel, "option '%s' is not expected to be inline (%s:%d)", name, + file, line); + return false; + } + if (found) { *found |= type; @@ -4952,10 +5024,10 @@ set_user_script(struct options *options, #endif } - static void add_option(struct options *options, char *p[], + bool is_inline, const char *file, int line, const int level, @@ -5335,15 +5407,16 @@ add_option(struct options *options, } else if (streq(p[0], "connection") && p[1] && !p[3]) { - VERIFY_PERMISSION(OPT_P_GENERAL); - if (streq(p[1], INLINE_FILE_TAG) && p[2]) + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); + if (is_inline) { struct options sub; struct connection_entry *e; init_options(&sub, true); sub.ce = options->ce; - read_config_string("[CONNECTION-OPTIONS]", &sub, p[2], msglevel, OPT_P_CONNECTION, option_types_found, es); + read_config_string("[CONNECTION-OPTIONS]", &sub, p[1], msglevel, + OPT_P_CONNECTION, option_types_found, es); if (!sub.ce.remote) { msg(msglevel, "Each 'connection' block must contain exactly one 'remote' directive"); @@ -6024,17 +6097,10 @@ add_option(struct options *options, else if (streq(p[0], "http-proxy-user-pass") && p[1]) { struct http_proxy_options *ho; - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); ho = init_http_proxy_options_once(&options->ce.http_proxy_options, &options->gc); - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - ho->auth_file = p[2]; - ho->inline_creds = true; - } - else - { - ho->auth_file = p[1]; - } + ho->auth_file = p[1]; + ho->inline_creds = is_inline; } else if (streq(p[0], "http-proxy-retry") || streq(p[0], "socks-proxy-retry")) { @@ -7497,12 +7563,10 @@ add_option(struct options *options, } else if (streq(p[0], "secret") && p[1] && !p[3]) { - VERIFY_PERMISSION(OPT_P_GENERAL); - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->shared_secret_file_inline = p[2]; - } - else if (p[2]) + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); + options->shared_secret_file = p[1]; + options->shared_secret_file_inline = is_inline; + if (!is_inline && p[2]) { int key_direction; @@ -7516,7 +7580,6 @@ add_option(struct options *options, goto err; } } - options->shared_secret_file = p[1]; } else if (streq(p[0], "genkey") && !p[1]) { @@ -7695,14 +7758,11 @@ add_option(struct options *options, VERIFY_PERMISSION(OPT_P_GENERAL); options->tls_client = true; } - else if (streq(p[0], "ca") && p[1] && ((streq(p[1], INLINE_FILE_TAG) && p[2]) || !p[2]) && !p[3]) + else if (streq(p[0], "ca") && p[1] && !p[2]) { - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); options->ca_file = p[1]; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->ca_file_inline = p[2]; - } + options->ca_file_inline = is_inline; } #ifndef ENABLE_CRYPTO_MBEDTLS else if (streq(p[0], "capath") && p[1] && !p[2]) @@ -7711,32 +7771,23 @@ add_option(struct options *options, options->ca_path = p[1]; } #endif /* ENABLE_CRYPTO_MBEDTLS */ - else if (streq(p[0], "dh") && p[1] && ((streq(p[1], INLINE_FILE_TAG) && p[2]) || !p[2]) && !p[3]) + else if (streq(p[0], "dh") && p[1] && !p[2]) { - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); options->dh_file = p[1]; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->dh_file_inline = p[2]; - } + options->dh_file_inline = is_inline; } - else if (streq(p[0], "cert") && p[1] && ((streq(p[1], INLINE_FILE_TAG) && p[2]) || !p[2]) && !p[3]) + else if (streq(p[0], "cert") && p[1] && !p[2]) { - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); options->cert_file = p[1]; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->cert_file_inline = p[2]; - } + options->cert_file_inline = is_inline; } - else if (streq(p[0], "extra-certs") && p[1] && ((streq(p[1], INLINE_FILE_TAG) && p[2]) || !p[2]) && !p[3]) + else if (streq(p[0], "extra-certs") && p[1] && !p[2]) { - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); options->extra_certs_file = p[1]; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->extra_certs_file_inline = p[2]; - } + options->extra_certs_file_inline = is_inline; } else if (streq(p[0], "verify-hash") && p[1] && !p[3]) { @@ -7765,14 +7816,11 @@ add_option(struct options *options, options->cryptoapi_cert = p[1]; } #endif - else if (streq(p[0], "key") && p[1] && ((streq(p[1], INLINE_FILE_TAG) && p[2]) || !p[2]) && !p[3]) + else if (streq(p[0], "key") && p[1] && !p[2]) { - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); options->priv_key_file = p[1]; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->priv_key_file_inline = p[2]; - } + options->priv_key_file_inline = is_inline; } else if (streq(p[0], "tls-version-min") && p[1] && !p[3]) { @@ -7803,14 +7851,11 @@ add_option(struct options *options, options->ssl_flags |= (ver << SSLF_TLS_VERSION_MAX_SHIFT); } #ifndef ENABLE_CRYPTO_MBEDTLS - else if (streq(p[0], "pkcs12") && p[1] && ((streq(p[1], INLINE_FILE_TAG) && p[2]) || !p[2]) && !p[3]) + else if (streq(p[0], "pkcs12") && p[1] && !p[2]) { - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); options->pkcs12_file = p[1]; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->pkcs12_file_inline = p[2]; - } + options->pkcs12_file_inline = is_inline; } #endif /* ENABLE_CRYPTO_MBEDTLS */ else if (streq(p[0], "askpass") && !p[2]) @@ -7867,18 +7912,15 @@ add_option(struct options *options, options->tls_cert_profile = p[1]; } else if (streq(p[0], "crl-verify") && p[1] && ((p[2] && streq(p[2], "dir")) - || (p[2] && streq(p[1], INLINE_FILE_TAG) ) || !p[2]) && !p[3]) + || !p[2])) { - VERIFY_PERMISSION(OPT_P_GENERAL); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_INLINE); if (p[2] && streq(p[2], "dir")) { options->ssl_flags |= SSLF_CRL_VERIFY_DIR; } options->crl_file = p[1]; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->crl_file_inline = p[2]; - } + options->crl_file_inline = is_inline; } else if (streq(p[0], "tls-verify") && p[1]) { @@ -8059,15 +8101,14 @@ add_option(struct options *options, { int key_direction = -1; - VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_CONNECTION); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_CONNECTION|OPT_P_INLINE); if (permission_mask & OPT_P_GENERAL) { - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->tls_auth_file_inline = p[2]; - } - else if (p[2]) + options->tls_auth_file = p[1]; + options->tls_auth_file_inline = is_inline; + + if (!is_inline && p[2]) { key_direction = ascii2keydirection(msglevel, p[2]); if (key_direction < 0) @@ -8076,16 +8117,15 @@ add_option(struct options *options, } options->key_direction = key_direction; } - options->tls_auth_file = p[1]; + } else if (permission_mask & OPT_P_CONNECTION) { + options->ce.tls_auth_file = p[1]; + options->ce.tls_auth_file_inline = is_inline; options->ce.key_direction = KEY_DIRECTION_BIDIRECTIONAL; - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->ce.tls_auth_file_inline = p[2]; - } - else if (p[2]) + + if (!is_inline && p[2]) { key_direction = ascii2keydirection(msglevel, p[2]); if (key_direction < 0) @@ -8094,28 +8134,20 @@ add_option(struct options *options, } options->ce.key_direction = key_direction; } - options->ce.tls_auth_file = p[1]; } } else if (streq(p[0], "tls-crypt") && p[1] && !p[3]) { - VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_CONNECTION); + VERIFY_PERMISSION(OPT_P_GENERAL|OPT_P_CONNECTION|OPT_P_INLINE); if (permission_mask & OPT_P_GENERAL) { - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->tls_crypt_inline = p[2]; - } options->tls_crypt_file = p[1]; + options->tls_crypt_inline = is_inline; } else if (permission_mask & OPT_P_CONNECTION) { - if (streq(p[1], INLINE_FILE_TAG) && p[2]) - { - options->ce.tls_crypt_inline = p[2]; - } options->ce.tls_crypt_file = p[1]; - + options->ce.tls_crypt_inline = is_inline; } } else if (streq(p[0], "key-method") && p[1] && !p[2]) diff --git a/src/openvpn/options.h b/src/openvpn/options.h index acbd1087..e1ec34e8 100644 --- a/src/openvpn/options.h +++ b/src/openvpn/options.h @@ -133,12 +133,12 @@ struct connection_entry /* Shared secret used for TLS control channel authentication */ const char *tls_auth_file; - const char *tls_auth_file_inline; + bool tls_auth_file_inline; int key_direction; /* Shared secret used for TLS control channel authenticated encryption */ const char *tls_crypt_file; - const char *tls_crypt_inline; + bool tls_crypt_inline; }; struct remote_entry @@ -476,7 +476,7 @@ struct options /* Cipher parms */ const char *shared_secret_file; - const char *shared_secret_file_inline; + bool shared_secret_file_inline; int key_direction; const char *ciphername; bool ncp_enabled; @@ -515,13 +515,13 @@ struct options const char *tls_export_cert; const char *crl_file; - const char *ca_file_inline; - const char *cert_file_inline; - const char *extra_certs_file_inline; - const char *crl_file_inline; - char *priv_key_file_inline; - const char *dh_file_inline; - const char *pkcs12_file_inline; /* contains the base64 encoding of pkcs12 file */ + bool ca_file_inline; + bool cert_file_inline; + bool extra_certs_file_inline; + bool crl_file_inline; + bool priv_key_file_inline; + bool dh_file_inline; + bool pkcs12_file_inline; int ns_cert_type; /* set to 0, NS_CERT_CHECK_SERVER, or NS_CERT_CHECK_CLIENT */ unsigned remote_cert_ku[MAX_PARMS]; @@ -570,11 +570,11 @@ struct options /* Shared secret used for TLS control channel authentication */ const char *tls_auth_file; - const char *tls_auth_file_inline; + bool tls_auth_file_inline; /* Shared secret used for TLS control channel authenticated encryption */ const char *tls_crypt_file; - const char *tls_crypt_inline; + bool tls_crypt_inline; /* Allow only one session */ bool single_session; @@ -647,6 +647,7 @@ struct options #define OPT_P_SOCKFLAGS (1<<26) #define OPT_P_CONNECTION (1<<27) #define OPT_P_PEER_ID (1<<28) +#define OPT_P_INLINE (1<<29) #define OPT_P_DEFAULT (~(OPT_P_INSTANCE|OPT_P_PULL_MODE)) diff --git a/src/openvpn/plugin.c b/src/openvpn/plugin.c index 4d17c821..c5a61db6 100644 --- a/src/openvpn/plugin.c +++ b/src/openvpn/plugin.c @@ -161,12 +161,13 @@ plugin_option_list_new(struct gc_arena *gc) } bool -plugin_option_list_add(struct plugin_option_list *list, char **p, struct gc_arena *gc) +plugin_option_list_add(struct plugin_option_list *list, char **p, + struct gc_arena *gc) { if (list->n < MAX_PLUGINS) { struct plugin_option *o = &list->plugins[list->n++]; - o->argv = make_extended_arg_array(p, gc); + o->argv = make_extended_arg_array(p, false, gc); if (o->argv[0]) { o->so_pathname = o->argv[0]; diff --git a/src/openvpn/plugin.h b/src/openvpn/plugin.h index 791d476b..bf4d71bb 100644 --- a/src/openvpn/plugin.h +++ b/src/openvpn/plugin.h @@ -106,7 +106,8 @@ struct plugin_return struct plugin_option_list *plugin_option_list_new(struct gc_arena *gc); -bool plugin_option_list_add(struct plugin_option_list *list, char **p, struct gc_arena *gc); +bool plugin_option_list_add(struct plugin_option_list *list, char **p, + struct gc_arena *gc); #ifndef ENABLE_SMALL void plugin_option_list_print(const struct plugin_option_list *list, int msglevel); diff --git a/src/openvpn/push.c b/src/openvpn/push.c index a7ec4dd6..6cf37565 100644 --- a/src/openvpn/push.c +++ b/src/openvpn/push.c @@ -569,7 +569,7 @@ clone_push_list(struct options *o) void push_options(struct options *o, char **p, int msglevel, struct gc_arena *gc) { - const char **argv = make_extended_arg_array(p, gc); + const char **argv = make_extended_arg_array(p, false, gc); char *opt = print_argv(argv, gc, 0); push_option(o, opt, msglevel); } diff --git a/src/openvpn/push.h b/src/openvpn/push.h index 5f6181e7..bf313297 100644 --- a/src/openvpn/push.h +++ b/src/openvpn/push.h @@ -57,7 +57,8 @@ void clone_push_list(struct options *o); void push_option(struct options *o, const char *opt, int msglevel); -void push_options(struct options *o, char **p, int msglevel, struct gc_arena *gc); +void push_options(struct options *o, char **p, int msglevel, + struct gc_arena *gc); void push_reset(struct options *o); diff --git a/src/openvpn/ssl.c b/src/openvpn/ssl.c index 4257c33d..6b0f26d0 100644 --- a/src/openvpn/ssl.c +++ b/src/openvpn/ssl.c @@ -555,7 +555,7 @@ tls_version_parse(const char *vstr, const char *extra) */ static void tls_ctx_reload_crl(struct tls_root_ctx *ssl_ctx, const char *crl_file, - const char *crl_file_inline) + bool crl_file_inline) { /* if something goes wrong with stat(), we'll store 0 as mtime */ platform_stat_t crl_stat = {0}; @@ -661,7 +661,7 @@ init_ssl(const struct options *options, struct tls_root_ctx *new_ctx) { char *cert = management_query_cert(management, options->management_certificate); - tls_ctx_load_cert_file(new_ctx, INLINE_FILE_TAG, cert); + tls_ctx_load_cert_file(new_ctx, cert, true); free(cert); } #endif diff --git a/src/openvpn/ssl_backend.h b/src/openvpn/ssl_backend.h index 5023c02a..86d41f9d 100644 --- a/src/openvpn/ssl_backend.h +++ b/src/openvpn/ssl_backend.h @@ -202,11 +202,12 @@ void tls_ctx_check_cert_time(const struct tls_root_ctx *ctx); * * @param ctx TLS context to use * @param dh_file The file name to load the parameters from, or - * "[[INLINE]]" in the case of inline files. - * @param dh_file_inline A string containing the parameters + * a string containing the parameters in the case + * of inline files. + * @param dh_file_inline True if dh_file is an inline file. */ void tls_ctx_load_dh_params(struct tls_root_ctx *ctx, const char *dh_file, - const char *dh_file_inline); + bool dh_file_inline); /** * Load Elliptic Curve Parameters, and load them into the library-specific @@ -224,15 +225,15 @@ void tls_ctx_load_ecdh_params(struct tls_root_ctx *ctx, const char *curve_name * * @param ctx TLS context to use * @param pkcs12_file The file name to load the information from, or - * "[[INLINE]]" in the case of inline files. - * @param pkcs12_file_inline A string containing the information + * a string containing the information in the case + * of inline files. + * @param pkcs12_file_inline True if pkcs12_file is an inline file. * * @return 1 if an error occurred, 0 if parsing was * successful. */ int tls_ctx_load_pkcs12(struct tls_root_ctx *ctx, const char *pkcs12_file, - const char *pkcs12_file_inline, bool load_ca_file - ); + bool pkcs12_file_inline, bool load_ca_file); /** * Use Windows cryptoapi for key and cert, and add to library-specific TLS @@ -252,25 +253,27 @@ void tls_ctx_load_cryptoapi(struct tls_root_ctx *ctx, const char *cryptoapi_cert * * @param ctx TLS context to use * @param cert_file The file name to load the certificate from, or - * "[[INLINE]]" in the case of inline files. - * @param cert_file_inline A string containing the certificate + * a string containing the certificate in the case + * of inline files. + * @param cert_file_inline True if cert_file is an inline file. */ void tls_ctx_load_cert_file(struct tls_root_ctx *ctx, const char *cert_file, - const char *cert_file_inline); + bool cert_file_inline); /** * Load private key file into the given TLS context. * * @param ctx TLS context to use * @param priv_key_file The file name to load the private key from, or - * "[[INLINE]]" in the case of inline files. - * @param priv_key_file_inline A string containing the private key + * a string containing the private key in the case + * of inline files. + * @param priv_key_file_inline True if priv_key_file is an inline file * * @return 1 if an error occurred, 0 if parsing was * successful. */ int tls_ctx_load_priv_file(struct tls_root_ctx *ctx, const char *priv_key_file, - const char *priv_key_file_inline); + bool priv_key_file_inline); #ifdef MANAGMENT_EXTERNAL_KEY @@ -293,13 +296,13 @@ int tls_ctx_use_management_external_key(struct tls_root_ctx *ctx); * * @param ctx TLS context to use * @param ca_file The file name to load the CAs from, or - * "[[INLINE]]" in the case of inline files. - * @param ca_file_inline A string containing the CAs + * a string containing the CAs in the case of + * inline files. + * @param ca_file_inline True if ca_file is an inline file * @param ca_path The path to load the CAs from */ void tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, - const char *ca_file_inline, const char *ca_path, bool tls_server - ); + bool ca_file_inline, const char *ca_path, bool tls_server); /** * Load extra certificate authority certificates from the given file or path. @@ -309,12 +312,14 @@ void tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, * * @param ctx TLS context to use * @param extra_certs_file The file name to load the certs from, or - * "[[INLINE]]" in the case of inline files. - * @param extra_certs_file_inline A string containing the certs + * a string containing the certs in the + * case of inline files. + * @param extra_certs_file_inline True if extra_certs_file is an inline + * file. */ -void tls_ctx_load_extra_certs(struct tls_root_ctx *ctx, const char *extra_certs_file, - const char *extra_certs_file_inline - ); +void tls_ctx_load_extra_certs(struct tls_root_ctx *ctx, + const char *extra_certs_file, + bool extra_certs_file_inline); #ifdef ENABLE_CRYPTO_MBEDTLS /** @@ -357,11 +362,11 @@ void key_state_ssl_free(struct key_state_ssl *ks_ssl); * * @param ssl_ctx The TLS context to use when reloading the CRL * @param crl_file The file name to load the CRL from, or - * "[[INLINE]]" in the case of inline files. - * @param crl_inline A string containing the CRL + * an array containing the inline CRL. + * @param crl_inline True if crl_file is an inline CRL. */ void backend_tls_ctx_reload_crl(struct tls_root_ctx *ssl_ctx, - const char *crl_file, const char *crl_inline); + const char *crl_file, bool crl_inline); /** * Keying Material Exporters [RFC 5705] allows additional keying material to be diff --git a/src/openvpn/ssl_common.h b/src/openvpn/ssl_common.h index 08ef6ffa..e5883c1a 100644 --- a/src/openvpn/ssl_common.h +++ b/src/openvpn/ssl_common.h @@ -263,7 +263,7 @@ struct tls_options int verify_x509_type; const char *verify_x509_name; const char *crl_file; - const char *crl_file_inline; + bool crl_file_inline; int ns_cert_type; unsigned remote_cert_ku[MAX_PARMS]; const char *remote_cert_eku; diff --git a/src/openvpn/ssl_mbedtls.c b/src/openvpn/ssl_mbedtls.c index e4850cb6..1e7326d7 100644 --- a/src/openvpn/ssl_mbedtls.c +++ b/src/openvpn/ssl_mbedtls.c @@ -312,13 +312,13 @@ tls_ctx_check_cert_time(const struct tls_root_ctx *ctx) void tls_ctx_load_dh_params(struct tls_root_ctx *ctx, const char *dh_file, - const char *dh_inline - ) + bool dh_inline) { - if (!strcmp(dh_file, INLINE_FILE_TAG) && dh_inline) + if (dh_inline) { if (!mbed_ok(mbedtls_dhm_parse_dhm(ctx->dhm_ctx, - (const unsigned char *) dh_inline, strlen(dh_inline)+1))) + (const unsigned char *) dh_file, + strlen(dh_file) + 1))) { msg(M_FATAL, "Cannot read inline DH parameters"); } @@ -348,9 +348,7 @@ tls_ctx_load_ecdh_params(struct tls_root_ctx *ctx, const char *curve_name int tls_ctx_load_pkcs12(struct tls_root_ctx *ctx, const char *pkcs12_file, - const char *pkcs12_file_inline, - bool load_ca_file - ) + bool pkcs12_file_inline, bool load_ca_file) { msg(M_FATAL, "PKCS #12 files not yet supported for mbed TLS."); return 0; @@ -366,8 +364,7 @@ tls_ctx_load_cryptoapi(struct tls_root_ctx *ctx, const char *cryptoapi_cert) void tls_ctx_load_cert_file(struct tls_root_ctx *ctx, const char *cert_file, - const char *cert_inline - ) + bool cert_inline) { ASSERT(NULL != ctx); @@ -376,10 +373,11 @@ tls_ctx_load_cert_file(struct tls_root_ctx *ctx, const char *cert_file, ALLOC_OBJ_CLEAR(ctx->crt_chain, mbedtls_x509_crt); } - if (!strcmp(cert_file, INLINE_FILE_TAG) && cert_inline) + if (cert_inline) { if (!mbed_ok(mbedtls_x509_crt_parse(ctx->crt_chain, - (const unsigned char *) cert_inline, strlen(cert_inline)+1))) + (const unsigned char *)cert_file, + strlen(cert_file) + 1))) { msg(M_FATAL, "Cannot load inline certificate file"); } @@ -395,8 +393,7 @@ tls_ctx_load_cert_file(struct tls_root_ctx *ctx, const char *cert_file, int tls_ctx_load_priv_file(struct tls_root_ctx *ctx, const char *priv_key_file, - const char *priv_key_inline - ) + bool priv_key_inline) { int status; ASSERT(NULL != ctx); @@ -406,19 +403,20 @@ tls_ctx_load_priv_file(struct tls_root_ctx *ctx, const char *priv_key_file, ALLOC_OBJ_CLEAR(ctx->priv_key, mbedtls_pk_context); } - if (!strcmp(priv_key_file, INLINE_FILE_TAG) && priv_key_inline) + if (priv_key_inline) { status = mbedtls_pk_parse_key(ctx->priv_key, - (const unsigned char *) priv_key_inline, strlen(priv_key_inline)+1, - NULL, 0); + (const unsigned char *) priv_key_file, + strlen(priv_key_file) + 1, NULL, 0); if (MBEDTLS_ERR_PK_PASSWORD_REQUIRED == status) { char passbuf[512] = {0}; pem_password_callback(passbuf, 512, 0, NULL); status = mbedtls_pk_parse_key(ctx->priv_key, - (const unsigned char *) priv_key_inline, - strlen(priv_key_inline)+1, (unsigned char *) passbuf, + (const unsigned char *) priv_key_file, + strlen(priv_key_file) + 1, + (unsigned char *) passbuf, strlen(passbuf)); } } @@ -440,7 +438,8 @@ tls_ctx_load_priv_file(struct tls_root_ctx *ctx, const char *priv_key_file, management_auth_failure(management, UP_TYPE_PRIVATE_KEY, NULL); } #endif - msg(M_WARN, "Cannot load private key file %s", priv_key_file); + msg(M_WARN, "Cannot load private key file %s", + print_key_filename(priv_key_file, priv_key_inline)); return 1; } @@ -649,18 +648,18 @@ tls_ctx_use_management_external_key(struct tls_root_ctx *ctx) void tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, - const char *ca_inline, const char *ca_path, bool tls_server - ) + bool ca_inline, const char *ca_path, bool tls_server) { if (ca_path) { msg(M_FATAL, "ERROR: mbed TLS cannot handle the capath directive"); } - if (ca_file && !strcmp(ca_file, INLINE_FILE_TAG) && ca_inline) + if (ca_file && ca_inline) { if (!mbed_ok(mbedtls_x509_crt_parse(ctx->ca_chain, - (const unsigned char *) ca_inline, strlen(ca_inline)+1))) + (const unsigned char *) ca_file, + strlen(ca_file) + 1))) { msg(M_FATAL, "Cannot load inline CA certificates"); } @@ -677,8 +676,7 @@ tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, void tls_ctx_load_extra_certs(struct tls_root_ctx *ctx, const char *extra_certs_file, - const char *extra_certs_inline - ) + bool extra_certs_inline) { ASSERT(NULL != ctx); @@ -687,11 +685,11 @@ tls_ctx_load_extra_certs(struct tls_root_ctx *ctx, const char *extra_certs_file, ALLOC_OBJ_CLEAR(ctx->crt_chain, mbedtls_x509_crt); } - if (!strcmp(extra_certs_file, INLINE_FILE_TAG) && extra_certs_inline) + if (extra_certs_inline) { if (!mbed_ok(mbedtls_x509_crt_parse(ctx->crt_chain, - (const unsigned char *) extra_certs_inline, - strlen(extra_certs_inline)+1))) + (const unsigned char *) extra_certs_file, + strlen(extra_certs_file) + 1))) { msg(M_FATAL, "Cannot load inline extra-certs file"); } @@ -919,7 +917,7 @@ tls_version_to_major_minor(int tls_ver, int *major, int *minor) void backend_tls_ctx_reload_crl(struct tls_root_ctx *ctx, const char *crl_file, - const char *crl_inline) + bool crl_inline) { ASSERT(crl_file); @@ -929,10 +927,11 @@ backend_tls_ctx_reload_crl(struct tls_root_ctx *ctx, const char *crl_file, } mbedtls_x509_crl_free(ctx->crl); - if (!strcmp(crl_file, INLINE_FILE_TAG) && crl_inline) + if (crl_inline) { if (!mbed_ok(mbedtls_x509_crl_parse(ctx->crl, - (const unsigned char *)crl_inline, strlen(crl_inline)+1))) + (const unsigned char *)crl_file, + strlen(crl_file) + 1))) { msg(M_WARN, "CRL: cannot parse inline CRL"); goto err; diff --git a/src/openvpn/ssl_openssl.c b/src/openvpn/ssl_openssl.c index 1a66d178..58a89000 100644 --- a/src/openvpn/ssl_openssl.c +++ b/src/openvpn/ssl_openssl.c @@ -511,17 +511,16 @@ cleanup: void tls_ctx_load_dh_params(struct tls_root_ctx *ctx, const char *dh_file, - const char *dh_file_inline - ) + bool dh_file_inline) { DH *dh; BIO *bio; ASSERT(NULL != ctx); - if (!strcmp(dh_file, INLINE_FILE_TAG) && dh_file_inline) + if (dh_file_inline) { - if (!(bio = BIO_new_mem_buf((char *)dh_file_inline, -1))) + if (!(bio = BIO_new_mem_buf((char *)dh_file, -1))) { crypto_msg(M_FATAL, "Cannot open memory BIO for inline DH parameters"); } @@ -540,7 +539,8 @@ tls_ctx_load_dh_params(struct tls_root_ctx *ctx, const char *dh_file, if (!dh) { - crypto_msg(M_FATAL, "Cannot load DH parameters from %s", dh_file); + crypto_msg(M_FATAL, "Cannot load DH parameters from %s", + print_key_filename(dh_file, dh_file_inline)); } if (!SSL_CTX_set_tmp_dh(ctx->ctx, dh)) { @@ -638,9 +638,7 @@ tls_ctx_load_ecdh_params(struct tls_root_ctx *ctx, const char *curve_name int tls_ctx_load_pkcs12(struct tls_root_ctx *ctx, const char *pkcs12_file, - const char *pkcs12_file_inline, - bool load_ca_file - ) + bool pkcs12_file_inline, bool load_ca_file) { FILE *fp; EVP_PKEY *pkey; @@ -652,11 +650,11 @@ tls_ctx_load_pkcs12(struct tls_root_ctx *ctx, const char *pkcs12_file, ASSERT(NULL != ctx); - if (!strcmp(pkcs12_file, INLINE_FILE_TAG) && pkcs12_file_inline) + if (pkcs12_file_inline) { BIO *b64 = BIO_new(BIO_f_base64()); - BIO *bio = BIO_new_mem_buf((void *) pkcs12_file_inline, - (int) strlen(pkcs12_file_inline)); + BIO *bio = BIO_new_mem_buf((void *) pkcs12_file, + (int) strlen(pkcs12_file)); ASSERT(b64 && bio); BIO_push(b64, bio); p12 = d2i_PKCS12_bio(b64, NULL); @@ -802,20 +800,17 @@ tls_ctx_add_extra_certs(struct tls_root_ctx *ctx, BIO *bio) void tls_ctx_load_cert_file(struct tls_root_ctx *ctx, const char *cert_file, - const char *cert_file_inline) + bool cert_file_inline) { BIO *in = NULL; X509 *x = NULL; int ret = 0; - bool inline_file = false; ASSERT(NULL != ctx); - inline_file = (strcmp(cert_file, INLINE_FILE_TAG) == 0); - - if (inline_file && cert_file_inline) + if (cert_file_inline) { - in = BIO_new_mem_buf((char *)cert_file_inline, -1); + in = BIO_new_mem_buf((char *) cert_file, -1); } else { @@ -846,7 +841,7 @@ tls_ctx_load_cert_file(struct tls_root_ctx *ctx, const char *cert_file, end: if (!ret) { - if (inline_file) + if (cert_file_inline) { crypto_msg(M_FATAL, "Cannot load inline certificate file"); } @@ -868,8 +863,7 @@ end: int tls_ctx_load_priv_file(struct tls_root_ctx *ctx, const char *priv_key_file, - const char *priv_key_file_inline - ) + bool priv_key_file_inline) { SSL_CTX *ssl_ctx = NULL; BIO *in = NULL; @@ -880,9 +874,9 @@ tls_ctx_load_priv_file(struct tls_root_ctx *ctx, const char *priv_key_file, ssl_ctx = ctx->ctx; - if (!strcmp(priv_key_file, INLINE_FILE_TAG) && priv_key_file_inline) + if (priv_key_file_inline) { - in = BIO_new_mem_buf((char *)priv_key_file_inline, -1); + in = BIO_new_mem_buf((char *) priv_key_file, -1); } else { @@ -910,7 +904,8 @@ tls_ctx_load_priv_file(struct tls_root_ctx *ctx, const char *priv_key_file, management_auth_failure(management, UP_TYPE_PRIVATE_KEY, NULL); } #endif - crypto_msg(M_WARN, "Cannot load private key file %s", priv_key_file); + crypto_msg(M_WARN, "Cannot load private key file %s", + print_key_filename(priv_key_file, priv_key_file_inline)); goto end; } @@ -935,7 +930,7 @@ end: void backend_tls_ctx_reload_crl(struct tls_root_ctx *ssl_ctx, const char *crl_file, - const char *crl_inline) + bool crl_inline) { X509_CRL *crl = NULL; BIO *in = NULL; @@ -963,9 +958,9 @@ backend_tls_ctx_reload_crl(struct tls_root_ctx *ssl_ctx, const char *crl_file, X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL); - if (!strcmp(crl_file, INLINE_FILE_TAG) && crl_inline) + if (crl_inline) { - in = BIO_new_mem_buf((char *)crl_inline, -1); + in = BIO_new_mem_buf((char *) crl_file, -1); } else { @@ -974,20 +969,23 @@ backend_tls_ctx_reload_crl(struct tls_root_ctx *ssl_ctx, const char *crl_file, if (in == NULL) { - msg(M_WARN, "CRL: cannot read: %s", crl_file); + msg(M_WARN, "CRL: cannot read: %s", + print_key_filename(crl_file, crl_inline)); goto end; } crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); if (crl == NULL) { - msg(M_WARN, "CRL: cannot read CRL from file %s", crl_file); + msg(M_WARN, "CRL: cannot read CRL from file %s", + print_key_filename(crl_file, crl_inline)); goto end; } if (!X509_STORE_add_crl(store, crl)) { - msg(M_WARN, "CRL: cannot add %s to store", crl_file); + msg(M_WARN, "CRL: cannot add %s to store", + print_key_filename(crl_file, crl_inline)); goto end; } @@ -1350,9 +1348,7 @@ sk_x509_name_cmp(const X509_NAME *const *a, const X509_NAME *const *b) void tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, - const char *ca_file_inline, - const char *ca_path, bool tls_server - ) + bool ca_file_inline, const char *ca_path, bool tls_server) { STACK_OF(X509_INFO) *info_stack = NULL; STACK_OF(X509_NAME) *cert_names = NULL; @@ -1373,9 +1369,9 @@ tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, /* Try to add certificates and CRLs from ca_file */ if (ca_file) { - if (!strcmp(ca_file, INLINE_FILE_TAG) && ca_file_inline) + if (ca_file_inline) { - in = BIO_new_mem_buf((char *)ca_file_inline, -1); + in = BIO_new_mem_buf((char *)ca_file, -1); } else { @@ -1447,11 +1443,11 @@ tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, { crypto_msg(M_WARN, "Cannot load CA certificate file %s (entry %d did not validate)", - np(ca_file), added); + print_key_filename(ca_file, ca_file_inline), + added); } prev = cnum; } - } sk_X509_INFO_pop_free(info_stack, X509_INFO_free); } @@ -1465,7 +1461,7 @@ tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, { crypto_msg(M_FATAL, "Cannot load CA certificate file %s (no entries were read)", - np(ca_file)); + print_key_filename(ca_file, ca_file_inline)); } if (tls_server) @@ -1475,7 +1471,8 @@ tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, { crypto_msg(M_FATAL, "Cannot load CA certificate file %s (only %d " "of %d entries were valid X509 names)", - np(ca_file), cnum, added); + print_key_filename(ca_file, ca_file_inline), cnum, + added); } } @@ -1503,13 +1500,12 @@ tls_ctx_load_ca(struct tls_root_ctx *ctx, const char *ca_file, void tls_ctx_load_extra_certs(struct tls_root_ctx *ctx, const char *extra_certs_file, - const char *extra_certs_file_inline - ) + bool extra_certs_file_inline) { BIO *in; - if (!strcmp(extra_certs_file, INLINE_FILE_TAG) && extra_certs_file_inline) + if (extra_certs_file_inline) { - in = BIO_new_mem_buf((char *)extra_certs_file_inline, -1); + in = BIO_new_mem_buf((char *)extra_certs_file, -1); } else { @@ -1518,7 +1514,10 @@ tls_ctx_load_extra_certs(struct tls_root_ctx *ctx, const char *extra_certs_file, if (in == NULL) { - crypto_msg(M_FATAL, "Cannot load extra-certs file: %s", extra_certs_file); + crypto_msg(M_FATAL, "Cannot load extra-certs file: %s", + print_key_filename(extra_certs_file, + extra_certs_file_inline)); + } else { diff --git a/src/openvpn/tls_crypt.c b/src/openvpn/tls_crypt.c index 36ead84d..ba2e82c3 100644 --- a/src/openvpn/tls_crypt.c +++ b/src/openvpn/tls_crypt.c @@ -66,7 +66,7 @@ tls_crypt_buf_overhead(void) void tls_crypt_init_key(struct key_ctx_bi *key, const char *key_file, - const char *key_inline, bool tls_server) + bool key_inline, bool tls_server) { const int key_direction = tls_server ? KEY_DIRECTION_NORMAL : KEY_DIRECTION_INVERSE; diff --git a/src/openvpn/tls_crypt.h b/src/openvpn/tls_crypt.h index 067758ca..2b0d8f4b 100644 --- a/src/openvpn/tls_crypt.h +++ b/src/openvpn/tls_crypt.h @@ -91,13 +91,14 @@ * * @param key The key context to initialize * @param key_file The file to read the key from (or the inline tag to - * indicate and inline key). - * @param key_inline Array containing (zero-terminated) inline key, or NULL - * if not used. + * indicate and inline key) or an array containing + * (zero-terminated) inline key. + * @param key_inline True if key_file contains an inline key, False + * otherwise. * @param tls_server Must be set to true is this is a TLS server instance. */ void tls_crypt_init_key(struct key_ctx_bi *key, const char *key_file, - const char *key_inline, bool tls_server); + bool key_inline, bool tls_server); /** * Returns the maximum overhead (in bytes) added to the destination buffer by