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* Check sort_enctypes return value in gic_keytabGreg Hudson2012-07-021-2/+3
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* Include all default etypes in gic_keytab requestsGreg Hudson2012-07-022-40/+30
| | | | | | | | | | | Revert 18b02f3e839c007fff54fc9b693f479b7563ec73 in the KDC. Instead, when making an initial request with a keytab, transmit the whole default_tkt_enctypes list, but sorted with the enctypes we have in the keytab first. That way the KDC should prefer enctypes which we have keys for (for both reply key and session key), but the other enctypes are still available for use as ticket session keys. ticket: 7190
* Add client keytab initiation supportGreg Hudson2012-07-0213-231/+705
| | | | | | | | | 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 Hudson2012-07-0210-2/+91
| | | | | | | | | | | | | | | | 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)
* Get default cred only once in gss-krb5 initiatorGreg Hudson2012-07-022-42/+41
| | | | | | | | | | In the regular krb5 code path, only get a default krb5 cred for the initial token, since we don't need the cred for mutual_auth anyway. In the IAKERB mechanism, cache the default cred in iakerb_ctx_id_rec so we don't have to construct it again for each token. Also, get an IAKERB default cred, not a regular krb5 cred (a bug which is harmless now, but becomes more of a problem with keytab initiation changes).
* Try harder to make keytab-based AS requests workGreg Hudson2012-07-012-4/+20
| | | | | | | | | | | | | | | | | | | When making a keytab-based AS request, a client has to choose between sending its reply key enctype preference list (the enctypes it has in the keytab) and its session key enctype preference list (all of the enctypes it supports). Heimdal and MIT krb5 1.11 clients send the reply key preference list. If this list doesn't overlap with the server principal keys (say, because the krbtgt principal has only a DES key), then the AS request will fail. Try to make this work by making the KDC optimistically pick the first permitted enctype in the request as the session key, even though it can't be certain that other KDCs in the realm support that enctype. Make sure to exercise this case in t_keytab.py by doing a multipass keytab kinit test. ticket: 7190 (new)
* Remove an outdated reference to DES in klist helpGreg Hudson2012-06-291-1/+1
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* Correct and clarify keytab API documentationGreg Hudson2012-06-291-12/+12
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* Rename gss-krb5 cred tgt_expire fieldGreg Hudson2012-06-277-11/+11
| | | | | | | The tgt_expire field is used to store non-TGT expiry times in a couple of cases: when the ccache has no TGT, and after we've obtained a cred for the target service. Rename it to just "expire" to be less misleading.
* Scan ccache more efficiently in gss_acquire_credGreg Hudson2012-06-271-28/+25
| | | | | Avoid rereading the ccache in order to find the impersonator config entry. Instead, check each entry as we scan through the first time.
* Simplify password storage in krb5_gss_cred_id_recGreg Hudson2012-06-275-17/+12
| | | | | The password is always zero-terminated, so we can store it as a char * instead of a krb5_data.
* Restore some spaces in trvalTom Yu2012-06-254-790/+790
| | | | | | This is a cosmetic change to reintroduce some space characters that cff6ea939f061d17a5742a04b8eeb2905c1813dc removed, e.g. between the tag and the length or short value.
* Fix crash on invalid DIR ccache primary fileGreg Hudson2012-06-251-2/+2
| | | | | | | | | | If read_primary_file() fails with an error other than ENOENT, abort cache resolution rather than dereferencing a null pointer. Reported by Oliver Loch. ticket: 7185 target_version: 1.10.3 tags: pullup
* Eliminate trailing whitespace in trval outputGreg Hudson2012-06-225-1254/+1259
| | | | | | | | Modify the trval output slightly so that the reference trval output files don't containing trailing whitespace, to make them friendlier to our git hooks. (The pkinit and ldap trval reference files now contain a leading blank line, which isn't very elegant, but avoiding that requires too much Makefile.in complexity.) Also correct a typo.
* Simplify acquire_cred.cGreg Hudson2012-06-221-109/+48
| | | | | | struct acquire_cred_args was used purely to pass arguments to acquire_cred (a static function), and had no advantages for that purpose over positional arguments.
* Fix config check in krb5_cccol_have_contentGreg Hudson2012-06-221-1/+1
| | | | | | | krb5_is_config_principal should be invoked on creds.server, not creds.client. ticket: 7173
* Limit size of lookaside cacheGreg Hudson2012-06-221-14/+25
| | | | | | | | Add a preprocessor constant LOOKASIDE_MAX_SIZE (defaulting to 10MB) which limits the total size of the lookaside cache entries. Purge stale entries in kdc_insert_lookaside instead of kdc_check_lookaside, and when doing so, continue purging non-stale entries until the total cache size (including the new entry) is within the size constraint.
* Flatten KDC lookaside cache entriesGreg Hudson2012-06-221-9/+11
| | | | | Use krb5_data structures instead of pointers in the entry structure, reducing the number of memory allocations.
* Handle PKINIT DH replies with no certsGreg Hudson2012-06-221-1/+8
| | | | | | | | | | | | | | | If a PKINIT Diffie-Hellman reply contains no certificates in the SignedData object, that may be because the signer certificate was a trust anchor as transmitted to the KDC. Heimdal's KDC, for instance, filters client trust anchors out of the returned set of certificates. Match against idctx->trustedCAs and idctx->intermediateCAs to handle this case. This fix only works with OpenSSL 1.0 or later; when built against OpenSSL 0.9.x, the client will still require a cert in the reply. Code changes suggested by nalin@redhat.com. ticket: 7183
* Simplify bld_princ.cGreg Hudson2012-06-212-75/+20
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* Remove orphaned KfM codeGreg Hudson2012-06-21111-34850/+3
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* Document how to free krb5_cc_get_full_name resultGreg Hudson2012-06-202-2/+4
| | | | | | | | Also, in klist, use the appropriate libkrb5 free functions for krb5_cc_get_full_name and krb5_unparse_name_results. Reported by Kevin Wasserman. ticket: 7179
* Document version for new API functionsZhanna Tsitkov2012-06-151-0/+4
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* Fail from gss_acquire_cred if we have no credsGreg Hudson2012-06-152-0/+15
| | | | | | | | If a caller tries to acquire krb5 initiator creds with no desired name and we have no credentials in the cache collection, fail from gss_acquire_cred intead of deferring until gss_init_sec_context. ticket: 7160
* Add krb5_cccol_have_content APIGreg Hudson2012-06-156-2/+62
| | | | | | | Add a new API to determine whether any krb5 credentials are available in the ccache collection. Add tests to t_cccol.py. ticket: 7173 (new)
* Remove krb5int_cc_os_default_nameGreg Hudson2012-06-112-22/+0
| | | | | krb5int_cc_os_default_name has been unused since #6955 removed the call to it in cccursor.c. Get rid of it.
* Clean up default_an_to_ln and fix a minor leakGreg Hudson2012-06-081-35/+23
| | | | | | | The default realm could be leaked if the principal had the wrong number of components. Reported by Russ Allbery. ticket: 7161
* Remove big-endian gss-krb5 supportGreg Hudson2012-06-0811-102/+32
| | | | | | | | The big_endian flag in krb5_gss_ctx_id_rec is there for interoperability with a really ancient implementation which we believe is no longer in use. Get rid of it and the code to handle it. ticket: 7166 (new)
* Fix memory leak in dbentry_supports_enctype in KDCGreg Hudson2012-06-071-9/+8
| | | | The etypes list was never freed. Also use k5_etypes_contains.
* Rename and add to etype utility functionsGreg Hudson2012-06-0711-32/+37
| | | | | | | 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 Hudson2012-06-072-42/+0
| | | | | It's an internal function (not in krb5.h or the libkrb5 export list) and nothing uses it.
* Don't free caller's principal in vfy_incredsGreg Hudson2012-06-061-1/+0
| | | | | | | | #7125 took out the copy of the krb5_verify_init_creds server argument but left in the corresponding free, so it was freeing a caller-owned principal. Reported by Russ Allbery. ticket: 7162
* Try to make t_trace.c output consistentGreg Hudson2012-06-063-16/+14
| | | | | | Attempt to choose tracing inputs in t_trace.c which will produce consistent output across platforms and logins. Re-enable the comparison against the reference file.
* Add control over session key enctype negotiationNicolas Williams2012-06-0612-57/+144
| | | | | | | | | | | | | | | | | | | 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]
* Allow daemon debugging in k5test.pyGreg Hudson2012-06-061-6/+8
| | | | | | | Allow --debug to be used for commands which start daemons, to make it easier to debug startup issues. After debugging a daemon, the script will exit, since the daemon won't be running after the debugging session is over.
* Fix k5test.py hostname canonicalizationGreg Hudson2012-06-051-2/+1
| | | | | | | | | | r25844 (#7124) stopped using AI_ADDRCONFIG when canonicalizing hostnames in sn2princ. So we need to also stop using it in k5test.c's _get_hostname() or we could come up with a different result on a system where forward and reverse resolution via IPv4 and IPv6 produce different results. That in turn causes a t_gssapi.py test (the one using the un-canonicalized hostname) to fail, because libkrb5 looks for a different host principal than k5test.py put in the keytab.
* Fix uninitialized memory errors in t_trace.cGreg Hudson2012-06-051-1/+4
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* Disable trace test comparison for nowGreg Hudson2012-06-051-1/+2
| | | | | | The t_trace output isn't consistent from run to run. To fix "make check", disable the comparison against the reference file until we can make the output consistent.
* Fix trace log unit testGreg Hudson2012-06-042-1/+53
| | | | | | | Only use common denominator Bourne shell syntax for exporting environment variables. Don't rely on /dev/stdout working. Compare the output with a reference file to detect changes, instead of just sending it to stdout.
* Fix -DDEBUG compilation errorsHenry B. Hotz2012-06-045-3/+6
| | | | ticket: 7150
* Fail from gss_acquire_cred if we have no keytabGreg Hudson2012-06-032-0/+15
| | | | | | | | If a caller tries to acquire krb5 acceptor creds with no desired name and we have no keytab keys, fail from gss_acquire_cred instead of deferring until gss_accept_sec_context. ticket: 7159 (new)
* Use first mech's status in gss_acquire_credGreg Hudson2012-06-031-3/+11
| | | | | | | | | | | If we can't acquire creds for any mech in gss_acquire_cred, return the status of the first mech instead of the last mech, as it's more useful in the typical case (where the first mech is krb5 and the last mech is SPNEGO). This error reporting is not ideal when the user was expecting to use some mech other than krb5, but it's about as good as things were prior to #6894. ticket: 6973
* Improve error message from krb5_kt_have_contentGreg Hudson2012-06-031-2/+10
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* Remove outdated comment in k5test.pyGreg Hudson2012-06-031-17/+0
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* Add krb5_kt_have_content APIGreg Hudson2012-06-025-0/+43
| | | | | | | | | | | | | Add the krb5_kt_have_content API from Heimdal, which can be used to test whether a keytab exists and contains entries. Add tests to t_keytab.c. There is a deviation from Heimdal in the function signature. Heimdal's signature returns a krb5_boolean at the moment, because the Heimdal implementation actually returns a krb5_error_code. These are generally the same type anyway (int). ticket: 7158 (new)
* Tighten up error checking in t_keytab.cGreg Hudson2012-06-021-29/+16
| | | | | | | When checking for specific error codes, using CHECK() meant that we wouldn't properly fail if we got error code 0. Define and use a CHECK_ERR() to test for a specific error code, and define CHECK() in terms of it.
* Use correct profile var in krb5_get_tgs_ktypesGreg Hudson2012-06-011-1/+1
| | | | | | | | | | | In r21879, when we converted to using KRB5_CONF macros for profile variable names, we made a typo in krb5_get_tgs_ktypes and erroneously started using default_tkt_enctypes instead of default_tgs_enctypes for TGS requests. Fix the typo and return to the documented behavior. ticket: 7155 target_version: 1.10.3 tags: pullup
* Use a hash table in the KDC lookaside cacheGreg Hudson2012-05-304-110/+160
| | | | | | | Add a hash table to kdc/replay.c for fast lookup of incoming packets. Continue to keep a time-ordered linked list of all entries for fast expiry of stale entries. The preprocessor constant LOOKASIDE_HASH_SIZE can be used to change the size of the hash table.
* Add a copy of the BSD <sys/queue.h> as k5-queue.hGreg Hudson2012-05-301-0/+748
| | | | | queue.h implements various types of linked lists as cpp macros, without needing any library support.
* Null pointer deref in kadmind [CVE-2012-1013]Richard Basch2012-05-291-1/+1
| | | | | | | | | | | | | | | | The fix for #6626 could cause kadmind to dereference a null pointer if a create-principal request contains no password but does contain the KRB5_KDB_DISALLOW_ALL_TIX flag (e.g. "addprinc -randkey -allow_tix name"). Only clients authorized to create principals can trigger the bug. Fix the bug by testing for a null password in check_1_6_dummy. CVSSv2 vector: AV:N/AC:M/Au:S/C:N/I:N/A:P/E:H/RL:O/RC:C [ghudson@mit.edu: Minor style change and commit message] ticket: 7152 target_version: 1.10.2 tags: pullup