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2011-04-26Fixed bug that incorrectly placed stricter TCP packet replay rules onJames Yonan
UDP sessions when the client daemon was running in UDP/TCP adaptive mode, and transitioned from TCP to UDP. The bug would cause a single dropped packet in UDP mode to trigger a barrage of packet replay errors followed by a disconnect and reconnect. Version 2.1.3r git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@7125 e7ae566f-a301-0410-adde-c780ea21d3b5
2011-04-26Added more packet ID debug info at debug level 3 for debuggingJames Yonan
false positive packet replays. Version 2.1.3q. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@7109 e7ae566f-a301-0410-adde-c780ea21d3b5
2011-04-26Added "auth-token" client directive, which is intended to beJames Yonan
pushed by server, and that is used to offer a temporary session token to clients that can be used in place of a password on subsequent credential challenges. This accomplishes the security benefit of preventing caching of the real password while offering most of the advantages of password caching, i.e. not forcing the user to re-enter credentials for every TLS renegotiation or network hiccup. auth-token does two things: 1. if password caching is enabled, the token replaces the previous password, and 2. if the management interface is active, the token is output to it: >PASSWORD:Auth-Token:<token> Also made a minor change to HALT/RESTART processing when password caching is enabled. When client receives a HALT or RESTART message, and if the message text contains a flags block (i.e. [FFF]:message), if flag 'P' (preserve auth) is present in flags, don't purge the Auth password. Otherwise do purge the Auth password. Version 2.1.3o git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@7088 e7ae566f-a301-0410-adde-c780ea21d3b5
2011-04-25Added --enable-lzo-stub configure option to build an OpenVPN client without ↵James Yonan
LZO, but that has limited interoperability with LZO-enabled servers. Modified "push-peer-info" option to push IV_LZO_STUB=1 to server when client was built with --enable-lzo-stub configure option. This tells the server that the client lacks LZO capabilities, so the server should turn off LZO compression for this client via "lzo no". Added "setenv PUSH_PEER_INFO" option having the same effect as "push-peer-info". Version 2.1.3j git-svn-id: http://svn.openvpn.net/projects/branches/BETA21@7023 e7ae566f-a301-0410-adde-c780ea21d3b5
2011-02-14Properly handle certificate serial numbers > 32 bits.James Yonan
Version 2.1.3h git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6931 e7ae566f-a301-0410-adde-c780ea21d3b5
2011-01-05Added --x509-track option.James Yonan
Version 2.1.3e git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6780 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-12-13Misc fixes to r6708.James Yonan
Fixed issue where "signal SIGTERM" entered from the management interface might get subsequently downgraded to a SIGUSR1. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6716 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-12-09Added "management-external-key" option. This option can be usedJames Yonan
instead of "key" in client mode, and allows the client to run without the need to load the actual private key. When the SSL protocol needs to perform an RSA sign operation, the data to be signed will be sent to the management interface via a notification as follows: >RSA_SIGN:[BASE64_DATA] The management interface client should then sign BASE64_DATA using the private key and return the signature as follows: rsa-sig [BASE64_SIG_LINE] . . . END This capability is intended to allow the use of arbitrary cryptographic service providers with OpenVPN via the management interface. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6708 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-11-16In verify_callback, the subject var should be freed by OPENSSL_free,James Yonan
not free, since it is allocated by OpenSSL. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6655 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-10-24Implement challenge/response authentication support in client mode,James Yonan
where credentials are entered from stdin. This capability is compiled when ENABLE_CLIENT_CR is defined in syshead.h (enabled by default). Challenge/response support was previously implemented for creds that are queried via the management interface. In this case, the challenge message will be returned as a custom client-reason-text string (see management-notes.txt for more info) on auth failure. Also, see the comments in misc.c above get_auth_challenge() for info on the OpenVPN challenge/response protocol. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6568 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-08-29Allow PKCS12 file content to be included inline in configuration file,James Yonan
rendered as base64. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6412 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-07-27Fixed an issue where application payload transmissions on theJames Yonan
TLS control channel (such as AUTH_FAILED) that occur during or immediately after a TLS renegotiation might be dropped. Version 2.1.1n git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6350 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-06-01Implemented a key/value auth channel from client to server.James Yonan
Version 2.1.1i git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5668 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-04-28Updated copyright date to 2010.James Yonan
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5599 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-03-12Modified ">PASSWORD:Verification Failed" management interfaceJames Yonan
notification to include a client reason string: >PASSWORD:Verification Failed: 'AUTH_TYPE' ['REASON_STRING'] git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5468 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-03-06Fixed an issue where if reneg-sec was set to 0 on the client,James Yonan
so that the server-side value would take precedence, the auth_deferred_expire_window function would incorrectly return a window period of 0 seconds. In this case, the correct window period should be the handshake window period. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5464 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-01-16Fixed an issue where AUTH_FAILED was not being properly deliveredjames
to the client when a bad password is given for mid-session reauth. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5369 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-11-13Increase MAX_CERT_DEPTH to 16 (from 8), and when exceeded,james
make it a hard failure, rather than just a warning. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5159 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-10-25On server, lock client-provided certs against mid-session TLSjames
renegotiations -- this is similer to how the common name is also locked. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5105 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-10-24On server, lock session username against changes in mid-session TLSjames
renegotiations -- this is similer to how the common name is also locked. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5098 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-09-29Added the ability for the server to provide a custom reason stringjames
when an AUTH_FAILED message is returned to the client. This string can be set by the server-side managment interface and read by the client-side management interface. For more info, see management/management-notes.txt, and look for references to "client-reason-text". git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5012 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-09-27Eliminated the limitation on the number of options that can be pushedjames
to clients, including routes. Previously, all pushed options needed to fit within a 1024 byte options string. Remember that to make use of this feature to allow many routes to be pushed to clients, the client config file must specify the max-routes option, and the number of pushed routes cannot exceed this limit. Also, both server and client must include this commit. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@4991 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-05-30Update copyright to 2009.james
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@4477 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-05-30Fixed issue of symbol conflicts interfering with Windows CryptoAPIjames
functionality (Alon Bar-Lev). git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@4475 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-01-27Fixed issue involving an #ifdef in a macro reference that breaks early gccjames
compilers. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3903 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-11-18Added server-side --opt-verify option: clients that connectjames
with options that are incompatible with those of the server will be disconnected. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3505 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-10-31Added --no-name-remapping option to allow Common Name, X509 Subject,james
and username strings to include any printable character including space, but excluding control characters such as tab, newline, and carriage-return. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3467 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-10-28Added server-side --auth-user-pass-optional directive, to allowjames
connections by clients that do not specify a username/password, when a user-defined authentication script/module is in place (via --auth-user-pass-verify, --management-client-auth, or a plugin module). git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3461 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-10-28Save X509 Subject fields to environment, using the naming convention:james
X509_{cert_depth}_{name}={value} git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3459 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-10-27Fixed informational message in ssl.c to properly indicatejames
deferred authentication. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3457 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-10-06Copyright notice changed to reflect change in name ofjames
Telethra to OpenVPN Technologies. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3409 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-09-08Fixed bug in intra-session TLS key rollover that was introduced withjames
deferred authentication features in 2.1_rc8. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3316 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-09-062.1_rc8 and earlier did implicit shell expansion on scriptjames
arguments since all scripts were called by system(). The security hardening changes made to 2.1_rc9 no longer use system(), but rather use the safer execve or CreateProcess system calls. The security hardening also introduced a backward incompatibility with 2.1_rc8 and earlier in that script parameters were no longer shell-expanded, so for example: client-connect "docc CLIENT-CONNECT" would fail to work because execve would try to execute a script called "docc CLIENT-CONNECT" instead of "docc" with "CLIENT-CONNECT" as the first argument. This patch fixes the issue, bringing the script argument semantics back to pre 2.1_rc9 behavior in order to preserve backward compatibility while still using execve or CreateProcess to execute the script/executable. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3311 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-08-10Workaround bug in OpenSSL 0.9.6b ASN1_STRING_to_UTF8, whichjames
the new implementation of extract_x509_field_ssl depends on. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3220 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-26Completely revamped the system for calling external programs and scripts:james
* All external programs and scripts are now called by execve() on unix and CreateProcess on Windows. * The system() function is no longer used. * Argument lists for external programs and scripts are now built by the new argv_printf function which natively outputs to string arrays (i.e. char *argv[] lists), never truncates its output, and eliminates the security issues inherent in formatting and parsing command lines, and dealing with argument quoting. * The --script-security directive has been added to offer policy controls on OpenVPN's execution of external programs and scripts. Also added a new plugin example (openvpn/plugin/examples/log.c) that logs information to stdout for every plugin method called by OpenVPN. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3122 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-19Modified extract_x509_field_ssl to return a status value indicatingjames
success/error, and any truncation of output due to an insufficiently large output buffer will be cause for error. In verify_callback, read X509 Subject Name without truncation. In verify_callback, rather than silently truncating Common Name at 64 bytes, throw an error if Common Name is larger than 64 bytes. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3084 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-19Replace leading dash ('-') characters in an X509 name with underbars ('_')james
before calling user-defined scripts, to preclude the chance of a leading dash being interpreted as an option prefix. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3083 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-17Removed old version of extract_x509_field.james
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3066 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-14Copyright change OpenVPN Solutions LLC -> Telethra, Inc.james
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3048 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-06-11Updated copyright notice to 2008.james
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2995 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-06-11Updated version to 2.1_rc7e.james
Added client authentication and packet filtering capability to management interface. Extended packet filtering capability to work on both --dev tun and --dev tap tunnels. Updated valgrind-suppress file. Made "Linux ip addr del failed" error nonfatal. Amplified --client-cert-not-required warning. Added #pragma pack to proto.h. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2991 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-06-04Fixed an issue in extract_x509_field_ssl where the extractionjames
would fail on the first field of the subject name, such as the common name in: /CN=foo/emailAddress=foo@bar.com git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2980 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-06-04Incremented version to 2.1_rc7d.james
Support asynchronous authentication by plugins by allowing OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY to return OPENVPN_PLUGIN_FUNC_DEFERRED. See comments in openvpn-plugin.h for documentation. Enabled by ENABLE_DEF_AUTH. Added a simple packet filter functionality that can be driven by a plugin. See comments in openvpn-plugin.h for documentation. Enabled by ENABLE_PF. See openvpn/plugin/defer/simple.c for examples of ENABLE_DEF_AUTH and ENABLE_PF. "TLS Error: local/remote TLS keys are out of sync" is no longer a fatal error for TCP-based sessions, since the error can arise normally in the course of deferred authentication. In a related change, allow packet-id sequence to begin at some number n > 0 for TCP sessions, rather than strictly requiring sequence to begin at 1. Added a test to configure.ac for LoadLibrary function on Windows. Modified "make dist" function to include all files from install-win32 so that ./domake-win can be run from a tarball-expanded directory. setenv and setenv-safe directives may now omit a value argument which defaults to "". git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2978 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-05-24Support asynchronous/deferred authentication injames
OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY plugin handler. See documentation in openvpn-plugin.h and example usage in plugin/defer/simple.c. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2969 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-05-12Moved branch into official BETA21 position.james
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2959 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-02-17The new function extract_x509_field_ssl tends to breakjames
in early versions of OpenSSL 0.9.6. Now we will fall back to the old function extract_x509_field for OpenSSL 0.9.6. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2749 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-01-21Rewrote extract_x509_field and modified COMMON_NAME_CHAR_CLASSjames
to allow forward slash characters ("/") in the X509 common name (Pavel Shramov). git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2638 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-01-21Simple fix where options->ca_file was used withoutjames
first being checked against NULL. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2635 e7ae566f-a301-0410-adde-c780ea21d3b5
2007-10-22Use pkcs11-helper as external library, can be downloadedjames
from https://www.opensc-project.org/pkcs11-helper (Alon Bar-Lev). git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2418 e7ae566f-a301-0410-adde-c780ea21d3b5
2007-08-17AUTO_USERID feature -- if the auth-user-pass option is usedjames
with some argument ARG, then -ARG will be appended to the username string that is sent to the server. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2259 e7ae566f-a301-0410-adde-c780ea21d3b5
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