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* Eliminate internal fixed-width type wrappersGreg Hudson2014-02-261-9/+5
| | | | | Directly use stdint.h names for integer types in preference to the various internal names we have made up for them.
* Make rcache resolve functions take const char *Greg Hudson2014-01-171-2/+4
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* Remove unused krb5_context fieldsGreg Hudson2013-12-181-2/+0
| | | | | The vtbl and locate_fptrs fields were ostensibly related to the locate pluggable interface, but weren't actually used.
* Don't require krb5.conf without KRB5_DNS_LOOKUPGreg Hudson2013-12-161-4/+0
| | | | | | | | | | | | For a long time we have allowed krb5 contexts to be initialized in the absence of krb5.conf--but only if KRB5_DNS_LOOKUP is defined, presumably on the theory that no KDCs could be contacted without either DNS support or profile configuration. But locate plugins could provide the ability to find KDCs, and some libkrb5 operations (such as IAKERB initiation) could succeed without needing to locate KDCs. Also get rid of the profile_in_memory context flag, since we don't use it any more.
* KDC Audit infrastructure and plugin implementationZhanna Tsitkov2013-10-041-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Per project http://k5wiki.kerberos.org/wiki/Projects/Audit The purpose of this project is to create an Audit infrastructure to monitor security related events on the KDC. The following events are targeted in the initial version: - startup and shutdown of the KDC; - AS_REQ and TGS_REQ exchanges. This includes client address and port, KDC request and request ID, KDC reply, primary and derived ticket and their ticket IDs, second ticket ID, cross-realm referral, was ticket renewed and validated, local policy violation and protocol constraints, and KDC status message. Ticket ID is introduced to allow to link tickets to their initial TGT at any stage of the Kerberos exchange. For the purpose of this project it is a private to KDC ticket ID: each successfully created ticket is hashed and recorded into audit log. The administrators can correlate the primary and derived ticket IDs after the fact. Request ID is a randomly generated alpha-numeric string. Using this ID an administrator can easily correlate multiple audit events related to a single request. It should be informative both in cases when the request is sent to multiple KDCs, or to the same KDC multiple times. For the purpose of testing and demo of the Audit, the JSON based modules are implemented: "test" and "simple" audit modules respectively. The file plugins/audit/j_dict.h is a dictionary used in this implememtations. The new Audit system is build-time enabled and run-time pluggable. [kaduk@mit.edu: remove potential KDC crashes, minor reordering] ticket: 7712 target_version: 1.12
* Factor out krb5int_random_string() routineZhanna Tsitkov2013-09-241-0/+4
| | | | | Make krb5int_random_string() function available outside ccache code. Move it into a separate file under lib/krb5/krb hierarchy.
* Err codes in KRB_ERROR protocol messages are < 128Zhanna Tsitkov2013-09-231-0/+1
| | | | | | If the error code is out of [0,127] range, assign it to KRB_ERR_GENERIC. This fix is to correct the previous behavior with [0,128] range. For more information see krb5_err.et
* Add a flag to prevent all host canonicalizationGreg Hudson2013-09-061-0/+2
| | | | | | | | If dns_canonicalize_hostname is set to false in [libdefaults], krb5_sname_to_principal will not canonicalize the hostname using either forward or reverse lookups. ticket: 7703 (new)
* Fix FAST critical option bit checkingGreg Hudson2013-09-031-2/+2
| | | | | | | | | The FAST option bits 0-15 are intended to be critical--if they are present and a KDC does not support them, the KDC is supposed to fail the request. Because of an incorrect constant, we were erroneously recognizing bits 24-31 as critical. Fix the constant. ticket: 7701 (new)
* Support FAST hide-client-names optionGreg Hudson2013-09-031-1/+1
| | | | | | | | In the KDC, if we see the hide-client-names option, identify the client as the anonymous principal in KDC-REP and KRB-ERROR responses. The actual client name is present in encrypted FAST elements. ticket: 7700 (new)
* Use hostrealm interface for realm mappingGreg Hudson2013-08-151-0/+4
| | | | | | | | | Reimplement krb5_get_host_realm, krb5_get_fallback_host_realm, and krb5_get_default_realm in terms of the hostrealm interface. Three built-in modules (dns, domain, and profile) implement the current behavior. ticket: 7687
* Add hostrealm pluggable interface definitionGreg Hudson2013-08-151-1/+2
| | | | ticket: 7687 (new)
* Add k5calloc internal helper functionGreg Hudson2013-07-111-2/+9
| | | | | | Letting calloc() do multiplication helps avoid overflow bugs, so provide an internal k5calloc() helper which accepts both calloc arguments, and reimplement k5alloc() in terms of it.
* Provide plugin module ordering guaranteesGreg Hudson2013-06-271-12/+2
| | | | | | | | Rewrite the plugin internals so that modules have a well-defined order--either the order of enable_only tags, or dynamic modules followed by the built-in modules in order of registration. ticket: 7665 (new)
* Fix various warningsGreg Hudson2013-06-071-5/+4
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* Get rid of cm.c and cm.hGreg Hudson2013-04-121-2/+0
| | | | | | | | | | | Since net-server.c now uses libverto, only sendto_kdc.c consumes cm.c. Move stuff out of cm.c and cm.h into sendto_kdc.c and get rid of them. Change the sendto_kdc callback (used by chpw.c) to receive the socket descriptor instead of the entire conn_state structure, and move the declarations into os-proto.h. struct remote_address also needs to be in os-proto.h so that trace.c and t_trace.c can use it. k5_curtime isn't needed since k5-platform.h now guarantees the presence of gettimeofday().
* Avoid passing null pointers to memcpy/memcmpGreg Hudson2013-04-081-7/+8
| | | | | | | | | | | | | | | By a strict reading of the C standard, memcpy and memcmp have undefined behavior if their pointer arguments aren't valid object pointers, even if the length argument is 0. Compilers are becoming more aggressive about breaking code with undefined behavior, so we should try to avoid it when possible. In a krb5_data object, we frequently use NULL as the data value when the length is 0. Accordingly, we should avoid copying from or comparing the data field of a length-0 krb5_data object. Add checks to our wrapper functions (like data_eq and k5_memdup) and to code which works with possibly-empty krb5_data objects. In a few places, use wrapper functions to simplify the code rather than adding checks.
* Get rid of krb5_xfreeGreg Hudson2013-03-281-3/+0
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* Move a bunch of stuff out of k5-int.hGreg Hudson2013-03-241-371/+0
| | | | | | | | | Move internal declarations from k5-int.h to more localized headers (like int-proto.h) where appropriate. Rename many symbols whose prototypes were moved to use the k5_ prefix instead of krb5int_. Remove some unused declarations or move them to the single source file they were needed in. Remove krb5_creds_compare since it isn't used any more.
* Get rid of krb5_{get,free}_krbhstGreg Hudson2013-03-221-2/+0
| | | | | These functions were always internal. They haven't been used since v5passwdd was eliminated in krb5 1.4.
* Get rid of osconfig.cGreg Hudson2013-03-221-3/+0
| | | | | These variables were marked as internal in 1996. Two are unused and the other is easily replaced with the macro it is initialized from.
* Add localauth pluggable interfaceGreg Hudson2013-03-091-1/+6
| | | | | | | | Add a new pluggable interface for local authorization, and replace the existing krb5_aname_to_localname and krb5_kuserok implementations with implementations based on the pluggable interface. ticket: 7583 (new)
* Add krb5_free_enctypes APIGreg Hudson2013-02-271-2/+0
| | | | | | | Rename krb5_free_ktypes to krb5_free_enctypes and add it to the public API. ticket: 7584
* Add and use k5memdup, k5memdup0 helpersGreg Hudson2013-02-091-0/+22
| | | | | | Add k5-int.h static functions to duplicate byte ranges, optionally with a trailing zero byte, and set an error code like k5alloc does. Use them where they would shorten existing code.
* Simplify KDC host referral codeGreg Hudson2013-01-111-1/+0
| | | | | | | | | | | Remove some unnecessary optimizations to reduce code complexity. Get rid of krb5_match_config_pattern in favor of a simpler helper function in do_tgs_req_c. Get rid of KRB5_CONF_ASTERISK and just use "*" instead. Use a helper function to combine [kdcdefaults] and realm subsection values of variables, and don't bother adding leading and trailing spaces. Consistently use the names "hostbased" and "no_referral" to refer to variable values (with a "realm_" prefix for structures which currently use it).
* Rename ccache configuration macrosZhanna Tsitkov2013-01-091-5/+5
| | | | | KRB5_CONF_ prefix should be used for the krb5/kdc.conf parameters. Use KRB5_CC_CONF_ prefix for cache configuration variables.
* Get rid of KRB5_KDB_SRV_TYPE_PASSWDGreg Hudson2012-12-201-1/+0
| | | | | | Nothing was using KRB5_KDB_SRV_TYPE_PASSWD, so get rid of it. (kpasswdd is part of kadmind and interacts with the KDB using KRB5_KDB_SRV_TYPE_ADMIN.)
* Rename internal preauth functionsGreg Hudson2012-12-191-27/+0
| | | | | | | | | | | | The preauth functions are internal to libkrb5, so use the k5_ prefix, don't use KRB5_CALLCONV, and prototype them in int-proto.h. Also remove krb5_do_preauth from the Unix libkrb5 export list. Reorder the k5_preauth() and k5_preauth_tryagain() arguments for more consistency with the clpreauth interface, and put the output padata arguments at the end. Rename any remaining uses of "kcontext" to "context" in preauth2.c.
* Separate clpreauth and kdcpreauth interfacesGreg Hudson2012-12-191-1/+1
| | | | | | | Since there is no overlap between the clpreauth and kdcpreauth interface declarations, there's no particular reason to combine them into one header. For backward compatibility and convenience, leave behind a preauth_plugin.h which includes both.
* Add "pa_config_data" configuration to ccachesNalin Dahyabhai2012-10-171-47/+1
| | | | | | | | | | | * Read a "pa_config_data" item from an in_ccache, if provided, and add a callback which client preauth plugins can use to retrieve a string value from it that's keyed by a string. * Add a callback which client preauth plugins can use to provide string key/value pairs to be stored in the ccache. * Moves the definition of (struct krb5_clpreauth_rock_st) from k5-int.h to init_creds_ctx.h to try to reduce the number of files that will need to include k5-json.h to understand k5_json_value.
* Test in_ccache and pa_types functionalityNalin Dahyabhai2012-10-161-0/+5
| | | | | | | | | * Add a krb5int_build_conf_principals() function to allow our get/set code to directly prune out duplicate config entries. * Verify that when we specify a pa_type, it affects whether or not we will use a particular preauth plugin. * Verify that we correctly save the KDC's preauth type number, that we tried to answer, to the out_ccache.
* Add "pa_type" configuration to ccachesNalin Dahyabhai2012-10-161-0/+12
| | | | | | | | | | | | | | * When producing preauth data, keep track of the type of padata in the KDC's list of acceptable types which prompted the module to produce padata. * After obtaining credentials, store that value as a "pa_type" configuration item in the out_ccache. * Read that allowed preauth type from an in_ccache, if possible. * If we have an allowed preauth type, only call "real" modules that handle that value when filling in responder items and producing a client request. ticket: 7414 (new)
* Add an input ccache get_init_creds optionNalin Dahyabhai2012-10-161-0/+1
| | | | | | | | Add a krb5_get_init_creds_opt_set_in_ccache() function. An input ccache may hold configuration data which the client libraries can use to influence their decisions. ticket: 7413 (new)
* Add responder support to get_as_key()Nathaniel McCallum2012-10-121-1/+2
| | | | | This follows the design laid out on the project page: http://k5wiki.kerberos.org/wiki/Projects/Password_response_item
* De-conditionalize Camellia codeGreg Hudson2012-10-091-22/+0
| | | | | | | | | | The Camellia enctypes and cksumtypes have received IANA assignments. Add #defines using those assignments to krb5.h, remove the CAMELLIA conditional, and enable testing code as appropriate. The Camellia draft has not received an RFC number yet, so there is no Doxygen markup for the enctype and cksumtype #defines. That can be added once the RFC number is known.
* Improve kpropd behavior in iprop modeNicolas Williams2012-10-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | - Make kpropd in iprop mode fork a child to listen for kprops from the master. The child writes progress and outcome reports to the parent for each kprop. This fixes a race between asking for a full resync and setting up a listener socket for it. - Add runonce (-t) for kpropd do_standalone() too. - Add a new iprop parameter: iprop_resync_timeout. kpropd will keep asking for incremental updates while waiting for a full resync to finish, and will re-request a full resync if kadmind continues to indicate that one is needed after this timeout passes since the previous full resync was requested. - Allow polling intervals less than 10 seconds. [ghudson@mit.edu: split out debug output changes; note polling interval change in commit message] ticket: 7373
* Add responder feature for initial cred exchangesNathaniel McCallum2012-09-111-0/+8
| | | | | | | | | | | | | | | | | | | | | | | Add new APIs: * krb5_get_init_creds_opt_set_responder * krb5_responder_get_challenge * krb5_responder_list_questions * krb5_responder_set_answer If a caller sets a responder, it will be invoked after preauth modules have had a chance to review their incoming padata but before they produce outgoing padata. The responder will be presented a set of questions with optional challenges. The responder should then answer all questions it knows how to handle. Both the answers and the challenges are printable UTF-8 and may contain encoded, structured data specific to the question asked. Add two new callbacks and one optional method to the clpreauth interface. The new method (prep_questions) allows modules to ask questions by setting them in the responder context using one of the new callbacks (ask_responder_question). The other new callback (get_responder_answer) is used by the process method to read the answers to the questions asked. ticket: 7355 (new)
* Add zapfreestr() helper to k5-int.hGreg Hudson2012-09-101-0/+10
| | | | | | Since zapfree(str, strlen(str)) won't work for possibly-null values of str, add a helper zapfreestr() which only calls strlen() if the string value is non-null.
* Add otp client preauth pluginNathaniel McCallum2012-08-231-0/+6
| | | | | | | Implements the client side of RFC 6560. Not all features are implemented, but it should work for the most common cases. ticket: 7242 (new)
* Add ASN.1 support for OTPGreg Hudson2012-08-231-0/+75
| | | | | | | Add encoders and decoders for the OTP-TOKENINFO, PA-OTP-CHALLENGE, PA-OTP-REQUEST, and PA-OTP-ENC-REQUEST types from RFC 6560. For more thorough testing, add support for generating test encodings using asn1c for sample objects (currently only for the OTP types).
* Add default_ccache_name profile variableGreg Hudson2012-07-241-0/+1
| | | | | | | Like default_keytab_name and default_client_keytab_name, default_ccache_name is subject to parameter expansion. ticket: 7220 (new)
* Remove DISABLE_TRACING from windows buildKevin Wasserman2012-07-161-1/+0
| | | | | | | Signed-off-by: Kevin Wasserman <kevin.wasserman@painless-security.com> ticket: 7215 (new) tags: pullup
* Add krb5int_cc_user_set_default_nameKevin Wasserman2012-07-111-0/+3
| | | | | | | | | | | | | Set the default credential cache name for all processes for the current user. Currently implemented, for windows only, by setting HKEY_CURRENT_USER\Software\MIT\Kerberos5:ccname to the specified ccache name. This will not override the environment variable 'KRB5CCNAME'. It will override HKEY_LOCAL_MACHINE and 'indirect' registry values. Signed-off-by: Kevin Wasserman <kevin.wasserman@painless-security.com> ticket: 7199 (new) tags: pullup
* Add client keytab initiation supportGreg Hudson2012-07-021-0/+1
| | | | | | | | | Support acquiring GSSAPI krb5 credentials by fetching initial credentials using the client keytab. Credentials obtained this way will be stored in the default ccache or collection, and will be refreshed when they are halfway to expiring. ticket: 7189 (new)
* Add krb5_kt_client_default APIGreg Hudson2012-07-021-0/+4
| | | | | | | | | | | | | | | | The default client keytab is intended to be used to automatically acquire initial credentials for client applications. The current hardcoded default is a placeholder, and will likely change before 1.11. Add test framework settings to ensure that a system default client keytab doesn't interfere with tests, and to allow tests to be written to deliberately use the default client keytab. Add documentation about keytabs to the concepts section of the RST docs, and describe the default client keytab there. ticket: 7188 (new)
* Simplify bld_princ.cGreg Hudson2012-06-211-9/+0
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* Remove krb5int_cc_os_default_nameGreg Hudson2012-06-111-3/+0
| | | | | krb5int_cc_os_default_name has been unused since #6955 removed the call to it in cccursor.c. Get rid of it.
* Rename and add to etype utility functionsGreg Hudson2012-06-071-0/+6
| | | | | | | Rename krb5int_count_etypes and krb5int_copy_etypes to have k5_ prefixes, and make them available outside of libkrb5 (but not part of the public API). Add k5_etypes_contains to search an etype list, and use it in krb5_is_permitted_enctype.
* Remove krb5_is_permitted_enctype_extGreg Hudson2012-06-071-10/+0
| | | | | It's an internal function (not in krb5.h or the libkrb5 export list) and nothing uses it.
* Add control over session key enctype negotiationNicolas Williams2012-06-061-0/+1
| | | | | | | | | | | | | | | | | | | Adds a principal string attribute named "session_enctypes" which can specify what enctypes the principal supports for session keys. (For what it's worth, this actually allows one to list des-cbc-md5 as a supported session key enctype, though obviously this hardly matters now.) Add a [realms] section parameter for specifying whether to assume that principals (which lack the session_enctypes attribute) support des-cbc-crc for session keys. This allows those who still need to use allow_weak_crypto=true, for whatever reason, to start reducing the number of tickets issued with des-cbc-crc session keys to clients which still give des-cbc-crc preference in their default_tgs_enctypes list. [ghudson@mit.edu: Miscellaneous edits, cleanups, and fixes; refactored test script; documented session_enctypes attribute]
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