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To make sure that e.g. the short/NetBIOS domain name is available this
patch make sure that the responders send a get_domains request to their
backends at startup the collect the domain information or read it from
the cache if the backend is offline.
For completeness I added this to all responders even if they do not need
the information at the moment.
Fixes https://fedorahosted.org/sssd/ticket/1951
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This new call is similar to responder_get_domain() but uses the domain
SID as search parameter. Since the length of the stored domain SID is
used in the comparison, SIDs of users and groups and be used directly
without stripping the RID component.
The functionality is not merged into responder_get_domain() to allow to
calculate the timeout correctly and return a specific error code if the
entry is expired.
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The patch adds two new request types for SID related requests. The first
one is used if a SID is given and the corresponding object should be
found. The second one can be used if the SID for an object is requested
but it is not clear if the object is a user or a group.
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Recent refactoring removed the need to copy the domain info data of
sub-domains because the related objects will not be removed from memory
anymore.
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I think it logically belongs there and allows to better exercise the
responder commands from unit tests.
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Change the way sysdbs are initialized. Make callers responsible for providing
the list of domains.
Remove the returned array of sysdb contexts, it was used only by sss_cache
and not really necessary there either as that tool can easily iterate the
domains.
Make sysdb ctx children of their respective domains.
Neither sysdb context nor domains are ever freed until a program is done so
there shouldn't be any memory hierarchy issue. As plus we simplify the code by
removing a destructor and a setter function.
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https://fedorahosted.org/sssd/ticket/1514
We were experiencing crash duting responder shut down. This happened
when there were some unresolved dp request during the shut down.
The memory hierarchy is main_ctx->specific_ctx->rctx, where
specific_ctx may be one of the pam, nss, sudo, etc. contexts.
If we try to call dp request callback as a result of responder
termination, the specific context is already semi freed, which may
cause crash.
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A check for allowed UIDs is added in the common responder code directly
after accept(). If the platform does not support reading the UID of the
peer but allowed UIDs are configured, access is denied.
Currently only the PAC responder sets the allowed UIDs for a socket. The
default is that only root is allowed to access the socket of the PAC
responder.
Fixes: https://fedorahosted.org/sssd/ticket/1382
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* Allows different user/domain qualified names for different
domains. For example Domain\User or user@domain.
* The global re_expression and full_name_format options remain
as defaults for the domains.
* Subdomains get the re_expression and full_name_format of
their parent domain.
https://bugzilla.redhat.com/show_bug.cgi?id=811663
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Instead of using account_info request, creates a new ssh specific
request. This improves code readability and will make the code more
flexible in the future.
https://fedorahosted.org/sssd/ticket/1176
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Now it checks for subdomains as well as for the domain itself
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The function that handled pending requests on reconnect was checking an
orphaned global variable that was never used, redenring the whole function
uselsess.
This fixes a very nasty bug that was causing requests for which we never
received an answer for (for example because the backend failed and was
restarted) to be never removed and therefore causing a black hole effect for
any other request of the same type.
Fixes: https://fedorahosted.org/sssd/ticket/1229
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This patch will increase the file descriptor limit to 8k or the
limits.conf maximum, whichever is lesser.
https://fedorahosted.org/sssd/ticket/1197
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Host requests are directed to the host info handler.
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Makes the setent_add_ref() and setent_notify_*() functions more generic
to be reusable by the autofs responder.
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The common function could be reused in new responders
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* the internal request is now more generic and is decoupled from
account-specific data. There is a new sss_dp_issue_request() wrapper
that issues a BE request or registers a callback
* the public requests all use struct sss_dp_req_state as the tevent_req
state data. This allows to report back data from the internal request
even if the caller is just a callback notifier
* each specific request now uses an _info structure that contains all
the data necessary to construct a DBusMessage passed to provider
* each specific request now defines a sss_dp_get_$data_msg callback that
is called from the sss_dp_issue_request() common wraper. The purpose
of the wrapper is to construct a DBusMessage and bind it to a DBus
method so the message can be just sent over to back end
The miscellanous changes include:
* change SSS_DP_ constants to an enum. This way, a switch() would error
if a value is not handled.
* rename sss_dp_get_account_int_send() to sss_dp_internal_get_send()
request because the internal request is going to handle more than just
account data
* the DBus return values were renamed from err_maj, err_min to dp_err
and dp_ret respectively
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Some NSS maps such as 'services' require more values to be passed
to the data provider than just the name or ID. In these cases, we
will amend an optional component to filter value to pass to the
data provider backend.
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Instead of timing out the initgroups lookup on a per-cctx basis,
we will maintain a hash table of recently-seen users and use this
instead. This will allow SSSD to handle user's logging into
multiple services simultaneously more graciously, as well as
playing nicer with SSH (which makes calls to PAM both before and
after a fork).
https://fedorahosted.org/sssd/ticket/1063
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We will now re-read the confdb debug_level value when processing
the monitor_common_logrotate() function, which occurs when the
monitor receives a SIGHUP.
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Also adds an option to limit how often we check the ID provider,
so that conversations with multiple PAM requests won't update the
cache multiple times.
https://fedorahosted.org/sssd/ticket/749
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Currently we do not handle the open nss request after a reconnect and
wait until they timeout (which is a couple of minutes!). This patch adds
a handler that terminates all requests after a reconnect. Then responder
will return matching cache entries or nothing.
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Previously, if a second enumeration request arrived while one was
already being processed, each process would receive only a subset
of the total number of available users or groups. This is because
we were maintaining the response object as a global value in the
NSS responder. The second request would come in, see that the data
set was already populated, and start reading from wherever the
cursor was currently pointed.
With this patch, we now move the cursor to the client context
instead of the global NSS context.
Additionally, this patch completely rewrites the approach to
enumerations in the tevent_req style. This makes it much easier to
follow in the code.
In order to ensure that a slow or malicious client cannot hold
onto a reference for the setent result object indefinitely, we
set an expiration on the object. We use the enum_cache_timeout
here, since that is an appropriate value.
If the timeout fires during the normal operation of the get*ent()
loop of a client program, we will save the current values of the
read index so that we can resume as soon as the object has been
refreshed by an implicit setent call.
Instead of deleting the enumeration result object immediately
after the last in-progress client has read it, we'll keep the
object around for the lifetime of enum_cache_timeout. This way,
additional clients making enumeration requests can still access
the results in-memory.
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This is the second attempt to let the PAM client and the PAM responder
exchange their credentials, i.e. uid, gid and pid. Because this approach
does not require any message interchange between the client and the
server the protocol version number is not changed.
On the client side the connection is terminated it the responder is not
run by root. On the server side the effective uid and gid and the pid of
the client are available for future use.
The following additional changes are made by this patch:
- the checks of the ownership and the permissions on the PAM sockets are
enhanced
- internal error codes are introduced on the client side to generate
more specific log messages if an error occurs
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This reverts commit 5a88e963744e5da453e88b5c36499f04712df097.
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- check if the public socket belongs to root and has 0666 permissions
- use a SCM_CREDENTIALS message if available
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Also update BUILD.txt
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