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* Check for unstable ulog in ulog_get_entriesGreg Hudson2014-01-301-6/+4
| | | | | | | | | | | | | If a process terminates in the middle of a logged database update, it will release its lock and leave the ulog in the KDB_UNSTABLE state. kadmind should notice this when it calls ulog_get_entries, but right now it only checks for the KDB_CORRUPT state (which is never set any more) and does not recover. Check for any state other than KDB_STABLE and recover by resetting the ulog and forcing full resyncs to slaves. ticket: 7853 (new) target_version: 1.12.2 tags: pullup
* Add test case for ulog serial number wrappingGreg Hudson2014-01-304-0/+117
| | | | | | | | | Add a unit test program named t_ulog. Make it map a ulog file, set up header state where kdb_last_sno is the last serial number, and then add an empty update. Check that the result is a ulog header with one update at serial number 1. ticket: 7839
* Reinitialize ulog when wrapping serial numberGreg Hudson2014-01-301-13/+8
| | | | | | | | | | | When we wrap the serial number, reinitialize the ulog so that kdb_num starts counting from 1, instead of leaving the ulog in a weird state where kdb_num == ulogentries but kdb_last_sno == 1 and the serial numbers in the circular array aren't necessarily contiguous. ticket: 7839 (new) target_version: 1.12.2 tags: pullup
* Fix gss_pseudo_random leak on zero length outputGreg Hudson2014-01-181-0/+3
| | | | | | | | | Nobody is likely to ever ask for zero bytes of output from gss_pseudo_random, but if they do, just return an empty buffer without allocating. Otherwise we leak memory because gss_release_buffer doesn't do anything to buffers with length 0. ticket: 7838 (new)
* Allow empty store in gss_acquire_cred_fromGreg Hudson2014-01-171-12/+0
| | | | | | | | | There is no reason to deny a zero-length cred store, so don't check for it in val_acq_cred_args or val_add_cred_args. ticket: 7836 (new) target_version: 1.12.2 tags: pullup
* Add rcache feature to gss_acquire_cred_fromSimo Sorce2014-01-172-13/+36
| | | | | | | | | | The "rcache" cred store entry can specify a replay cache type and name to be used with the credentials being acquired. [ghudson@mit.edu: split up, simplified, and altered to fit preparatory commits] ticket: 7819 (new)
* Clean up rcache if GSS krb5 acquire_cred failsGreg Hudson2014-01-171-0/+2
| | | | | | | | | The error handler in acquire_cred_context didn't release the rcache, which would cause it to leak if we failed after acquire_accept_cred. ticket: 7818 (new) target_version: 1.12.2 tags: pullup
* Clean up GSS krb5 acquire_accept_credGreg Hudson2014-01-171-22/+30
| | | | | | Use a cleanup handler instead of releasing kt in multiple error clauses. Wrap a long line and fix a comment with a missing word. Rewrap the function arguments to use fewer lines.
* Make rcache resolve functions take const char *Greg Hudson2014-01-171-2/+3
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* Get time offsets for all keyring ccachesGreg Hudson2014-01-171-20/+23
| | | | | | | | | | Move the time offset lookup from krb5_krcc_resolve to make_cache, so that we fetch time offsets for caches created by krb5_krcc_ptcursor_next. ticket: 7820 target_version: 1.12.2 tags: pullup
* Don't produce context deletion token in krb5 mechGreg Hudson2014-01-131-15/+0
| | | | | | | | | RFCs 2743 and 4121 recommend that implementations produce empty tokens from gss_delete_sec_context, and trying to produce one can cause gss_delete_sec_context to fail on a partially established context. Patch from Tomas Kuthan. ticket: 7816 (new)
* Clean up AES-NI codeTom Yu2014-01-102-98/+2
| | | | | Items in .data other than shuffle_mask are unused; delete them. Delete the unused macro load_and_inc4. Move shuffle_mask to .rodata.
* Avoid text relocations in iaesx86.sTom Yu2014-01-101-2/+8
| | | | | | | | | | Use PC-relative addressing to avoid runtime text relocations on i386. Adapted patch from Nalin Dahyabhai. ticket: 7815 target_version: 1.12.1 tags: pullup
* Work around Linux session keyring write behaviorGreg Hudson2014-01-101-4/+24
| | | | | | | | | | | If the session keyring matches the user session keyring, write explicitly to the user session keyring. Otherwise the kernel might create a new session keyring for the process, making the resulting cache collection invisible to other processes. ticket: 7814 target_version: 1.12.1 tags: pullup
* Refactor krb5_string_to_keysalts()Tom Yu2014-01-081-115/+64
| | | | | | | | | Use various standard C library functions rather than rolling our own. Previous code spent many lines reimplementing realloc(), strpbrk(), strtok_r(), etc. Make a separate string_to_keysalt() parser for an individual keysalt pair, which for now is private and destructive.
* Make salt defaulting work for keysaltsTom Yu2014-01-064-6/+6
| | | | | | | | | | Make krb5_string_to_keysalts() default to only ":" as a key:salt separator character. Change most of its callers to pass NULL so they get the default separators. Adapted from a patch proposed by Jon Looney. ticket: 884
* Default to normal salt instead of "ignore"Tom Yu2014-01-061-1/+1
| | | | | | | | krb5_string_to_keysalts() treats an empty salt field as -1 ("ignore"), rather than as the normal salttype. Default to normal instead, so that omitting a salttype works as expected. ticket: 6042
* Mark AESNI files as not needing executable stacksGreg Hudson2014-01-032-0/+22
| | | | | | | | | | | | | | | Some Linux systems now come with facilities to mark the stack as non-executable, making it more difficult to exploit buffer overrun bugs. For this to work, object files built from assembly need a section added to note whether they require an executable stack. Patch from Dhiru Kholia with comments added. More information at: https://bugzilla.redhat.com/show_bug.cgi?id=1045699 https://wiki.gentoo.org/wiki/Hardened/GNU_stack_quickstart ticket: 7813 target_version: 1.12.1 tags: pullup
* Fix uninitialized warning in client_init.cGreg Hudson2013-12-211-0/+3
| | | | ticket: 7800
* Allow realm in kadm5_init service namesGreg Hudson2013-12-211-48/+48
| | | | | | | | | | | | | | | | | | | | Previously, if you passed a service name with a realm part to a kadm5_init function, you would get a KRB5_PARSE_MALFORMED error because the code would internally append its own '@realm' suffix before parsing the name. Fix this as follows: Change gic_iter so instead of producing a full service name, it produces a krb5_principal which is taken from the cred it acquires. Pass the client and full service name around as principals, rather than strings, and use the gss_nt_krb5_principal name type to import them in setup_gss(). Don't append a realm to the input service name; instead, pass the input service name directly to the gic functions (which do not need a realm in the service name and will ignore the realm if one is present). For the INIT_CREDS case, parse the input service name with KRB5_PRINCIPAL_PARSE_IGNORE_REALM and then set the realm. ticket: 7800
* Simplify libkadm5 client realm initializationGreg Hudson2013-12-211-47/+4
| | | | | | | | | | | The "realm" variable in init_any is used only to fill in the realm of the service principal in gic_iter(). The service principal realm should always be the realm we looked up config parameters for, so we can supply that realm to get_init_creds() unconditionally and eliminate the case where we use the client principal realm. Also get rid of an outdated comment and an #if 0 block we will never need again, and use SNPRINTF_OVERFLOW to check the snprintf result.
* make dependGreg Hudson2013-12-201-0/+11
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* Avoid keyctl purge in keyring ccache testsGreg Hudson2013-12-201-14/+16
| | | | | | | | | keyctl purge was added in keyutils 1.5 (released in March 2011). Use keyctl unlink to clean up keys instead, as it is more universal. ticket: 7810 target_version: 1.12.1 tags: pullup
* Set an error message when keyring get_princ failsNalin Dahyabhai2013-12-201-0/+3
| | | | | | | | | | | | When attempting to use a keyring cache that doesn't exist, set an error message when we fail to read a principal name, as we do when we return the same error code when using a file ccache. [ghudson: removed unnecessary check for d->name nullity.] ticket: 7809 target_version: 1.12.1 tags: pullup
* Fix typo that broke 'make clean'Zhanna Tsitkov2013-12-201-1/+1
| | | | Missing $
* Add a test program for krb5_copy_contextGreg Hudson2013-12-182-1/+174
| | | | | | | | This test program isn't completely proof against the kind of mistakes we've made with krb5_copy_context in the past, but it at least exercises krb5_copy_context and can detect some kinds of bugs. ticket: 7807
* Fix krb5_copy_contextGreg Hudson2013-12-182-1/+16
| | | | | | | | | | | | | krb5_copy_context has been broken since 1.8 (it broke in r22456) because k5_copy_etypes crashes on null enctype lists. Subsequent additions to the context structure were not reflected in krb5_copy_context, creating double-free bugs. Make k5_copy_etypes handle null input and account for all new fields in krb5_copy_context. Reported by Arran Cudbard-Bell. ticket: 7807 (new) target_version: 1.12.1 tags: pullup
* Let SPNEGO display mechanism errorsSimo Sorce2013-12-181-8/+34
| | | | | | | | | | | | | | | To avoid potential recursion we use a thread local variable that tells us whether the ancestor was called via spnego_gss_display_name(). If we detect recursion, we assume that we returned a com_err code like ENOMEM and call error_message(); in the worst case that will result in an "Unknown error" message. [ghudson@mit.edu: Edited comments and commit message; removed an unneeded line of code.] ticket: 7045 target_version: 1.12.1 tags: pullup
* Remove unused krb5_context fieldsGreg Hudson2013-12-182-3/+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 Hudson2013-12-161-11/+2
| | | | | | | | | | | | 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.
* Fix GSS krb5 acceptor acquire_cred error handlingGreg Hudson2013-12-161-1/+3
| | | | | | | | | | | | When acquiring acceptor creds with a specified name, if we fail to open a replay cache, we leak the keytab handle. If there is no specified name and we discover that there is no content in the keytab, we leak the keytab handle and return the wrong major code. Memory leak reported by Andrea Campi. ticket: 7805 target_version: 1.12.1 tags: pullup
* Fix memory leak in SPNEGO initiatorSimo Sorce2013-12-161-0/+1
| | | | | | | | | | | | If we eliminate a mechanism from the initiator list because gss_init_sec_context fails, free the memory for that mech OID before removing it from the list. [ghudson@mit.edu: clarified commit message] ticket: 7803 (new) target_version: 1.12.1 tags: pullup
* Remove unneeded check in SPNEGO initiatorGreg Hudson2013-12-161-7/+0
| | | | | | | | In init_ctx_cont, if the response token contains no fields, we set a return value but don't actually quit out of the function. We do not need this check (we will fail later on if a piece of required information isn't present), so just remove it. Reported by simo@redhat.com.
* Fix SPNEGO one-hop interop against old IISGreg Hudson2013-12-121-0/+6
| | | | | | | | | | | | | | | | IIS 6.0 and similar return a zero length reponse buffer in the last SPNEGO packet when context initiation is performed without mutual authentication. In this case the underlying Kerberos mechanism has already completed successfully on the first invocation, and SPNEGO does not expect a mech response token in the answer. If we get an empty mech response token when the mech is complete during negotiation, ignore it. [ghudson@mit.edu: small code style and commit message changes] ticket: 7797 (new) target_version: 1.12.1 tags: pullup
* Allow ":port" suffixes in sn2princ hostnamesGreg Hudson2013-12-111-2/+37
| | | | | | | | | MSSQLSvc principal names can contain a ":port" or ":instance" trailer on the hostname part. If we see that in the hostname argument of krb5_sname_to_principal(), remove it before canonicalizing the hostname and put it back on afterwards. ticket: 7795 (new)
* Modernize sn2princ.cGreg Hudson2013-12-111-133/+115
| | | | | Refactor and edit sn2princ.c to match current coding style. No behavior changes, except to be less chatty in trace logs.
* make dependTom Yu2013-12-103-7/+22
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* Avoid malloc(0) in SPNEGO get_input_tokenGreg Hudson2013-12-061-6/+9
| | | | | | | If we read a zero-length token in spnego_mech.c's get_input_token(), set the value pointer to NULL instead of calling malloc(0). ticket: 7794 (new)
* Fix S4U2Self against non-FAST KDCsGreg Hudson2013-12-061-5/+34
| | | | | | | | | | | When we added FAST TGS support in 1.11, we broke S4U2Self against KDCs which don't support FAST, because the S4U2Self padata is only present within the FAST request. For now, duplicate that padata in the outer request so that both FAST and non-FAST KDCs can see it. ticket: 7791 target_version: 1.11.5 tags: pullup
* Edit README.asn1Greg Hudson2013-12-031-34/+51
| | | | | | Add another blank line before section headers. Avoid contractions. Change some whiches to thats where it seems appropriate. Fix some missing or extra words.
* Bump libgssrpc minor versionTom Yu2013-11-271-1/+1
| | | | | | Bump minor version for the new log_badauth2 interfaces. ticket: 7770
* Add new versions of log_badauth gssrpc callbacksGreg Hudson2013-11-253-11/+44
| | | | | | | | | | libgssrpc supports two callbacks for gss_accept_sec_context failures on servers (one for AUTH_GSS and one for AUTH_GSSAPI), which are IPv4-specific. Provide an alternate version which supplies the transport handle instead of the address, so that we can get the address via the file descriptor for TCP connections. ticket: 7770
* Remove inet_ntoa() prototype from getrpcent.cBen Kaduk2013-11-251-1/+0
| | | | | | | It is not needed. In general, we shouldn't be using inet_ntoa(), anyway, as it is IPv4-specific and we have IPv6 support almost everywhere.
* Remove a warning in AES string-to-keyGreg Hudson2013-11-151-7/+4
| | | | | | | On 32-bit platforms, the code to translate an iteration count of 0 to 2^32 can trigger a compiler warning. Since we will basically never accept an iteration count that high (right now we reject anything above 2^24), just reject it out of hand.
* Set expiration time on keys and keyringsSimo Sorce2013-11-151-5/+66
| | | | | | | | | | | By setting the timeout based on the credetial's timeout we let the system automatically cleanup expired credentials. [ghudson@mit.edu: simplified code slightly] ticket: 7769 (new) target_version: 1.12 tags: pullup
* Add support to store time offsets in cc_keyringSimo Sorce2013-11-151-2/+203
| | | | | | | | | | | | | | The code follows the same model used for the memory ccache type. Time offsets are stored in each credential cache in a special key just like the principal name. Legacy session caches do not store timestamps as legacy code would fail when iterating over the new offset key. [ghudson@mit.edu: minor formatting changes; note legacy session exception in commit message] ticket: 7768 (new) target_version: 1.12 tags: pullup
* Enforce minimum PBKDF2 iteration countTom Yu2013-11-153-65/+233
| | | | | | | | | Also add a testing interface to allow weak iteration counts. (Published test vectors use weak iteration counts.) ticket: 7465 target_version: 1.12 tags: pullup
* Catch more strtol() failures when using KEYRINGsNalin Dahyabhai2013-11-121-3/+3
| | | | | | | | | | | | | When parsing what should be a UID while resolving a KEYRING ccache name, don't just depend on strtol() to set errno when the residual that we pass to it can't be parsed as a number. In addition to checking errno, pass in and check the value of an "endptr". [ghudson@mit.edu: simplified slightly] ticket: 7764 (new) target_version: 1.12 tags: pullup
* Remove rtm_type_name()Ben Kaduk2013-11-041-37/+0
| | | | | It has been unused since 2009 when Ken decided that the routing log messages were too verbose (commit 91fc077c96926dd60).
* Clean up the code to eliminate some clang warningsBen Kaduk2013-11-043-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In ure.c, though k is a short, the literal 1 is of type 'int', and so the operation 'k + 1' is performed at the (32-bit) width of int, and therefore the "%d" format string is correct. In accept_sec_context.c, the 'length' field of krb5_data is an unsigned type, so checking for a negative value has no effect. In net-server.c, the helper routine rtm_type_name() is only used in code that is disabled with #if 0 conditionals; make the definition also disabled in the same way to avoid warnings of an unused function. In kdc_authdata.c, equality checks in double parentheses elicit a warning from clang. The double-parentheses idiom is normally used to indicate that an assignment is being performed, but the value of the assignment is also to be used as the value for the conditional. Since assignment and equality checking differ only by a single character, clang considers this worthy of a warning. Since the extra set of parentheses is redundant and against style, it is correct to remove them. In several places (sim_server.c, dump.c, kdb5_destroy.c, ovsec_kadmd.c), there are declarations of extern variables relating to getopt() functionality that are now unused in the code. Remove these unused variables.
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