diff options
Diffstat (limited to 'app/openvpn/src/openvpn/ssl_verify.h')
| -rw-r--r-- | app/openvpn/src/openvpn/ssl_verify.h | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/app/openvpn/src/openvpn/ssl_verify.h b/app/openvpn/src/openvpn/ssl_verify.h deleted file mode 100644 index 1d201523..00000000 --- a/app/openvpn/src/openvpn/ssl_verify.h +++ /dev/null @@ -1,252 +0,0 @@ -/* - * OpenVPN -- An application to securely tunnel IP networks - * over a single TCP/UDP port, with support for SSL/TLS-based - * session authentication and key exchange, - * packet encryption, packet authentication, and - * packet compression. - * - * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net> - * Copyright (C) 2010 Fox Crypto B.V. <openvpn@fox-it.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program (see the file COPYING included with this - * distribution); if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/** - * @file Control Channel Verification Module - */ - -#ifndef SSL_VERIFY_H_ -#define SSL_VERIFY_H_ - -#include "syshead.h" -#include "misc.h" -#include "manage.h" -#include "ssl_common.h" - -/* Include OpenSSL-specific code */ -#ifdef ENABLE_CRYPTO_OPENSSL -#include "ssl_verify_openssl.h" -#endif -#ifdef ENABLE_CRYPTO_POLARSSL -#include "ssl_verify_polarssl.h" -#endif - -#include "ssl_verify_backend.h" - -/* - * Keep track of certificate hashes at various depths - */ - -/** Maximum certificate depth we will allow */ -#define MAX_CERT_DEPTH 16 - -/** Structure containing the hash for a single certificate */ -struct cert_hash { - unsigned char sha1_hash[SHA_DIGEST_LENGTH]; /**< The SHA1 hash for a certificate */ -}; - -/** Structure containing the hashes for a full certificate chain */ -struct cert_hash_set { - struct cert_hash *ch[MAX_CERT_DEPTH]; /**< Array of certificate hashes */ -}; - - -#define TLS_AUTHENTICATION_SUCCEEDED 0 -#define TLS_AUTHENTICATION_FAILED 1 -#define TLS_AUTHENTICATION_DEFERRED 2 -#define TLS_AUTHENTICATION_UNDEFINED 3 - -/* - * Return current session authentication state. Return - * value is TLS_AUTHENTICATION_x. - * - * TODO: document this function - */ -int tls_authentication_status (struct tls_multi *multi, const int latency); - -/** Check whether the \a ks \c key_state is ready to receive data channel - * packets. - * @ingroup data_crypto - * - * If true, it is safe to assume that this session has been authenticated - * by TLS. - * - * @note This macro only works if S_SENT_KEY + 1 == S_GOT_KEY. */ -#define DECRYPT_KEY_ENABLED(multi, ks) ((ks)->state >= (S_GOT_KEY - (multi)->opt.server)) - -/** - * Remove the given key state's auth control file, if it exists. - * - * @param ks The key state the remove the file for - */ -void key_state_rm_auth_control_file (struct key_state *ks); - -/** - * Frees the given set of certificate hashes. - * - * @param chs The certificate hash set to free. - */ -void cert_hash_free (struct cert_hash_set *chs); - -/** - * Locks the certificate hash set used in the given tunnel - * - * @param multi The tunnel to lock - */ -void tls_lock_cert_hash_set (struct tls_multi *multi); - -/** - * Locks the common name field for the given tunnel - * - * @param multi The tunnel to lock - */ -void tls_lock_common_name (struct tls_multi *multi); - -/** - * Returns the common name field for the given tunnel - * - * @param multi The tunnel to return the common name for - * @param null Whether null may be returned. If not, "UNDEF" will be returned. - */ -const char *tls_common_name (const struct tls_multi* multi, const bool null); - -/** - * Returns the username field for the given tunnel - * - * @param multi The tunnel to return the username for - * @param null Whether null may be returned. If not, "UNDEF" will be returned. - */ -const char *tls_username (const struct tls_multi *multi, const bool null); - -#ifdef ENABLE_PF - -/** - * Retrieve the given tunnel's common name and its hash value. - * - * @param multi The tunnel to use - * @param cn Common name's string - * @param cn_hash Common name's hash value - * - * @return true if the common name was set, false otherwise. - */ -static inline bool -tls_common_name_hash (const struct tls_multi *multi, const char **cn, uint32_t *cn_hash) -{ - if (multi) - { - const struct tls_session *s = &multi->session[TM_ACTIVE]; - if (s->common_name && s->common_name[0] != '\0') - { - *cn = s->common_name; - *cn_hash = s->common_name_hashval; - return true; - } - } - return false; -} - -#endif - -/** - * Returns whether or not the server should check for username/password - * - * @param session The current TLS session - * - * @return true if username and password verification is enabled, - * false if not. - * - */ -static inline bool verify_user_pass_enabled(struct tls_session *session) -{ - return (session->opt->auth_user_pass_verify_script - || plugin_defined (session->opt->plugins, OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY) -#ifdef MANAGEMENT_DEF_AUTH - || management_enable_def_auth (management) -#endif - ); -} - -/** - * Verify the given username and password, using either an external script, a - * plugin, or the management interface. - * - * If authentication succeeds, the appropriate state is filled into the - * session's primary key state's authenticated field. Authentication may also - * be deferred, in which case the key state's auth_deferred field is filled in. - * - * @param up The username and password to verify. - * @param multi The TLS multi structure to verify usernames against. - * @param session The current TLS session - * - */ -void verify_user_pass(struct user_pass *up, struct tls_multi *multi, - struct tls_session *session); - -/** - * Perform final authentication checks, including locking of the cn, the allowed - * certificate hashes, and whether a client config entry exists in the - * client config directory. - * - * @param multi The TLS multi structure to verify locked structures. - * @param session The current TLS session - * - */ -void verify_final_auth_checks(struct tls_multi *multi, struct tls_session *session); - -#ifdef ENABLE_X509_TRACK - -struct x509_track -{ - const struct x509_track *next; - const char *name; -# define XT_FULL_CHAIN (1<<0) - unsigned int flags; - int nid; -}; - -void x509_track_add (const struct x509_track **ll_head, const char *name, int msglevel, struct gc_arena *gc); - -#endif - -/* - * Certificate checking for verify_nsCertType - */ -/** Do not perform Netscape certificate type verification */ -#define NS_CERT_CHECK_NONE (0) -/** Do not perform Netscape certificate type verification */ -#define NS_CERT_CHECK_SERVER (1<<0) -/** Do not perform Netscape certificate type verification */ -#define NS_CERT_CHECK_CLIENT (1<<1) - -/* - * TODO: document - */ -#ifdef MANAGEMENT_DEF_AUTH -bool tls_authenticate_key (struct tls_multi *multi, const unsigned int mda_key_id, const bool auth, const char *client_reason); -void man_def_auth_set_client_reason (struct tls_multi *multi, const char *client_reason); -#endif - -static inline const char * -tls_client_reason (struct tls_multi *multi) -{ -#ifdef ENABLE_DEF_AUTH - return multi->client_reason; -#else - return NULL; -#endif -} - -#endif /* SSL_VERIFY_H_ */ - |