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* Check that strings do not go beyond the end of the packet body in autofs and ↵Jan Cholasta2013-01-232-7/+7
| | | | | | | | SSH requests. This fixes CVE-2013-0220. https://fedorahosted.org/sssd/ticket/1781
* sudo responder: change num_rules type from size_t to uint32_tPavel Březina2013-01-225-21/+21
| | | | | | | | | | | https://fedorahosted.org/sssd/ticket/1779 2^32 should be enough to store sudo rules. size_t type was causing troubles on big endian architectures, because it wasn't used correctly in combination with D-Bus. Resolved Conflicts: src/responder/sudo/sudosrv_get_sudorules.c
* Invalidate user entry even if there are no groupsJakub Hrozek2013-01-161-6/+1
| | | | | | | | | Related to https://fedorahosted.org/sssd/ticket/1757 Previously we would optimize the mc invalidate code for cases where the user was a member of some groups. But if the user was removed from the server while being in memory cache, we would only invalidate the mc record if he was a member of at least one supplementary group.
* NSS: invalidate memcache user entry on initgr, tooJakub Hrozek2013-01-161-0/+11
| | | | | | | | | https://fedorahosted.org/sssd/ticket/1757 When the user entry was missing completely after initgroups, we would never invalidate the user entry from cache. This led to dangling cache entried in memory cache if the user was removed from the server while still being in memory cache.
* Refactor gid handling in the PAC responderSumit Bose2013-01-083-84/+202
| | | | | | Instead of using a single array of gid-domain_pointer pairs, Simo suggested to use a gid array for each domain an store it with a pointer to the domain.
* PAC responder: check if existing user differsSumit Bose2013-01-083-13/+64
| | | | | | If some of the Posix attributes of an user existing in the cache differ from the data given in the current PAC the old user entry is drop and a new one is created with the data from the PAC.
* Use hash table to collect GIDs from PAC to avoid dupsSumit Bose2013-01-081-18/+86
| | | | | | | To avoid duplicated entries in the group list all gids are added to a hash table first. Fixes: https://fedorahosted.org/sssd/ticket/1672
* Read remote groups from PACSumit Bose2013-01-081-3/+52
| | | | | | | Read the group membership of the remote domain the user belongs to from the PAC and add them to the cache. Fixes: https://fedorahosted.org/sssd/ticket/1666
* Remote groups do not have an original DN attributeSumit Bose2013-01-081-40/+34
| | | | | | | Groups from subdomains will not have an attribute holding the original DN because in general it will not be available. This attribute is only used by IPA HABC to improve performance and remote groups cannot be used for access control.
* Save domain and GID for groups from the configured domainSumit Bose2013-01-083-17/+47
| | | | | | | | | | Currently users from subdomains can only be members of groups from the configured domain and to access those groups a pointer to the domain struct of the configured domain is used. This patch sets the dom_grp member of struct pac_grp to point to the domain struct of the configured for groups from this domain. This is a first step to allow group membership for groups from subdomains as well. For those groups a pointer to the related subdomain structure will be saved.
* Always get user data from PACSumit Bose2013-01-081-7/+7
| | | | | | | Currently some user specific data from the PAC is only read when the user is not already in the cache. Since some of this information is needed later on, e.g. the domain SID the user belongs to, with this patch the data is read always from the PAC.
* Update domain ID for local domain as wellSumit Bose2013-01-081-2/+14
| | | | | | | Currently only the flat name of the configured domain is updated if it is not already set. This patch updates the domain ID as well. This is typically the case when trust support is enabled on the server side while sssd is running.
* Add find_domain_by_id()Sumit Bose2013-01-082-0/+42
| | | | | | | Currently domains can only be searched by name in the global domain list. To make it easier to find the domain for a given SID find_domain_by_id() which returns a pointer to the domain or subdomain entry in the global domain list if a matching id was found.
* Use struct pac_grp instead of gid_t for groups from PACSumit Bose2013-01-083-18/+25
| | | | | To be able to handle groupmemberships from other domains more data than just the gid must be kept for groups given in the PAC.
* sss_userdel and sss_groupdel with use_fully_qualified_namesMichal Zidek2013-01-071-15/+50
| | | | | If use_fully_qualified_names is used, we need to pass fqdn to sss_mmap_cache_*_invalidate.
* mmap cache: invalidate cache on fatal errorSimo Sorce2012-12-203-10/+30
| | | | | | | | | | If a fatal EFAULT error is returned by the internal function that frees used memory invalidate the whole cache and reinit it. This way we avoid further corruption and insure clients see consistent data. Also insure we use the right context in init() and we use talloc_zfree() in reinit so that if the init() later fails we do not leave around a pointer to free memory in the callers.
* Carefully check records when forcibly invalidatingSimo Sorce2012-12-201-18/+101
| | | | | | | | | | | | We should never try to invalidate an already invalid record as internal pointers will not be consistent. Carefully test that the record really is valid when we are fishing for free space, and properly invalidate records or return a fatal error if something goes wrong. In order to make the code more robust always invalidate the whole data space on initialization by setting all bits to 1, and make sure to invalidate the whole last allocated slot by converting rec->len to the number of slots instead of just the space used.
* Update free table when records are invalidated.Simo Sorce2012-12-201-14/+23
| | | | | We were holding up slots when entries were invalidated directly an not through our primitive garbage collection scheme.
* nss_mc: Add extra checks when dereferencing recordsSimo Sorce2012-12-201-0/+12
| | | | | | | Although it should enver happen that we pass in an invalid hash it is always better to just not do anything than access memory ouf of the hash table. It can lead to segfaults, or worse referencing memory that should not be touched.
* SSH: Reject requests for authorized keys of rootJan Cholasta2012-12-201-0/+5
| | | | https://fedorahosted.org/sssd/ticket/1687
* sssd_nss: Plug memory leaks1.9.2-55Simo Sorce2012-12-201-2/+11
| | | | | A recent patch introduced a glaring memory leak in the routines that clean up memcache memory on initgroups calls.
* responder_dp: Add timeout to side requets1.9.2-53Simo Sorce2012-12-201-1/+25
| | | | | | | This is an additional proteciont in case the provider misbheaves to avoid having requests pending forever. Fixes: https://fedorahosted.org/sssd/ticket/1717
* AUTOFS: Clear enum cache if a request comes in from the sss_cacheJakub Hrozek2012-12-181-0/+22
| | | | | In order for sss_cache to work correctly, we must also signal the autofs responder to invalidate the hash table requests.
* RESPONDERS: Create a common file with service names and versionsJakub Hrozek2012-12-1810-16/+49
| | | | | | | The monitor sends calls different sbus methods to different responders. Instead of including headers of the particular responders directly in monitor, which breaks layering a little, create a common header file that will be included from src/responder/common/
* AUTOFS: remove all maps from hash if request for auto.master comes inJakub Hrozek2012-12-182-3/+59
| | | | | | | | | | https://fedorahosted.org/sssd/ticket/1592 When a request for auto.master comes in, we need to remove all the maps from the lookup hash table. We can't simply delete the maps, because another request might be processing them, so instead the maps are removed from the hash table, effectively becoming orphaned. The maps will get freed when the timed destructor is invoked.
* AUTOFS: allow removing entries from hash tableJakub Hrozek2012-12-183-1/+32
| | | | | | | | | There is a timed desctructor in the autofs responder that, when the entry timeout passes, removes the autofs map from the hash table while the map is freed. This patch adds a hash delete callback so that if the map is removed from the hash table with hash_delete, its hash table pointer will be invalidated. Later, when the entry is being freed, the destructor won't attempt to remove it from the hash table.
* sssd_pam: Cleanup requests cache on sbus reconect1.9.2-45Simo Sorce2012-12-141-1/+4
| | | | | | | | | The pam responder was not properly configured to recover from a backend disconnect. The connections that were in flight before the disconnection were never freed and new requests for the same user would just pile up on top of the now phantom requests. Fixes: https://fedorahosted.org/sssd/ticket/1655
* sssd_nss: Remove entries from memory cache if not found in sysdbMichal Zidek2012-12-141-0/+23
| | | | | Functions nss_cmd_getXXnam remove entries from memory cache if not found in sysdb cache of a local domain.
* NSS: Fix the error handler in sss_mc_create_fileJakub Hrozek2012-12-141-10/+16
| | | | | | | https://fedorahosted.org/sssd/ticket/1704 The function is short enough so that we can simply stick with return and release resources before returning as appropriate.
* PAC: check the return value of diff_git_listsJakub Hrozek2012-12-141-0/+4
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* NSS: Fix netgroup midpoint cache refresh1.9.2-35Jakub Hrozek2012-12-073-3/+3
| | | | | | | | https://fedorahosted.org/sssd/ticket/1683 The result of the percent calculation was always 0 as it used plain ints. The patch switches to using explicit floats to avoid reintroducing the bug again even with brackets.
* Always append rctx as private data1.9.2-33Simo Sorce2012-12-061-1/+1
| | | | This is used for the new calls back from the data provider.
* Hook for mmap cache update on initgroup callsSimo Sorce2012-12-063-0/+147
| | | | | This set of functions enumerate the user's groups and invalidate them all if the list does not matches what we get from the caller.
* Hook to perform a mmap cache update from sssd_nssSimo Sorce2012-12-063-0/+118
| | | | | This set of functions enumerate each user/group from all domains and invalidate any mmap cache record that matches.
* mmap cache: public functions to invalidate recordsSimo Sorce2012-12-062-0/+135
| | | | | | These functions can be called from the nss responder to invalidate records that have ceased to exist or that need to be refreshed the first time an application needs them.
* LDAP: Only convert direct parents' ghost attribute to memberJakub Hrozek2012-11-211-1/+1
| | | | | | | | | | | | | | | | | https://fedorahosted.org/sssd/ticket/1612 This patch changes the handling of ghost attributes when saving the actual user entry. Instead of always linking all groups that contained the ghost attribute with the new user entry, the original member attributes are now saved in the group object and the user entry is only linked with its direct parents. As the member attribute is compared against the originalDN of the user, if either the originalDN or the originalMember attributes are missing, the user object is linked with all the groups as a fallback. The original member attributes are only saved if the LDAP schema supports nesting.
* Refactor the way subdomain accounts are savedSimo Sorce2012-11-194-29/+53
| | | | | | | | | | | | | | | | | The original sysdb code had a strong assumption that only users from one domain are saved in the databse, with the subdomain feature, we have changed reality, but have not adjusted all the code arund the sysdb calls to not rely on the original assumption. One of the side effects of this incongrunece is that currently group memberships do not return fully qualified names for subdomain users as they should. In oreder to fix this and other potential issues surrounding the violation of the original assumption, we need to fully qualify subdomain user names. By savin them fully qualified we do not risk aliasing local users and have group memberhips or other name based matching code mistake a domain user with subdomain usr or vice versa.
* Display more information on DB version crashOndrej Kos2012-11-191-0/+1
| | | | | | | | | | | | | https://fedorahosted.org/sssd/ticket/1589 Added check for determining, whether database version is higher or lower than expected. To distinguish it from other errors it uses following retun values (further used for appropriate error message): EMEDIUMTYPE for lower version than expected EUCLEAN for higher version than expected When SSSD or one of it's tools fails on DB version mismatch, new error message is showed suggesting how to proceed.
* SUDO: Fix wrong variable checkJakub Hrozek2012-11-191-1/+1
| | | | https://fedorahosted.org/sssd/ticket/1650
* Do not always return PAM_SYSTEM_ERR when offline krb5 authentication failsJakub Hrozek2012-11-151-17/+12
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* sudo: print how many rules we are refreshing or returningPavel Březina2012-11-141-3/+4
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* sudo: do not send domain name with usernamePavel Březina2012-11-143-6/+5
| | | | | | | | This caused troubles with subdomain users and it is not really necessary. This patch does not change the protocol itself, that should be done on the earliest possible occasion. Part of https://fedorahosted.org/sssd/ticket/1616
* sudo: support users from subdomainsPavel Březina2012-11-144-60/+214
| | | | https://fedorahosted.org/sssd/ticket/1616
* use tmp_ctx in sudosrv_get_sudorules_from_cache()Pavel Březina2012-11-141-8/+20
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* sudo: fix missing parameter in two debug messagesPavel Březina2012-11-141-3/+3
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* Store the original group DN in the subdomain user objectSumit Bose2012-11-121-26/+58
| | | | | | | | | | | For user of the local domain the server-side DN of the groups the user is a member of is stored with the user object in the cache and used to improve performance e.g. by the HBAC code. Since subdomain users should be handled by HBAC as well the group DN is stored in the same way as for users of the local domain. This patch also adds code to remove the attribute from the user object if the user is removed from the group.
* Get lists of GIDs to be added and deleted and use themSumit Bose2012-11-121-3/+89
| | | | | | | Currently the user was just added to all local groups which are given in the PAC. With this patch the user is added only to groups he is currently not a member of and deleted from groups which are not found in the PAC anymore.
* Add pac_user_get_grp_info() to read current group membershipsSumit Bose2012-11-121-0/+106
| | | | | | | | | | | | To be able to efficiently store group memberships we need to know the current memberships of a user. sysdb_initgroups() is used to read the user entry together with all groups the user is a member of. Some of the group attributes are kept to avoid additional lookups and speed up further processing. Currently sysdb_initgroups() does not return the original DN of the group. Since it is needed to remove memberships later on it is added to the list of requested attributes
* Add diff_gid_lists() with testSumit Bose2012-11-122-0/+172
| | | | | | | | This patch adds a new call which compares a list of current GIDs with a list of new GIDs and return a list of GIDs which are currently missing and must be added and another list of GIDs which are not used anymore and must be deleted. The method is the same as used by diff_string_lists().
* sss_dp_get_domains_send(): handle subreq error correctlyPavel Březina2012-11-121-1/+2
| | | | | | | If force is true, ret may stay uninitialized and if ret == 0 after the subrequest is send, we will go to immediate label. Data provider request is sent, but the answer is never processed. This prohibited subdomain from working correctly.
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