MONITOR: Remove unused shutDown sbus method The shutDown method has not been used or set for a long time. Trim the internal interface by removing all references to this internal method. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

MONITOR: Remove deprecated pong sbus method The pong method is deprecated since we started using the watchdog. Since this is dead code, it makes sense to just remove it. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

DP: Remove old data provider interface Reverse data provider interface is moved to a better location in NSS responder. All responders now can have an sbus interface defined per data provider connection. The unused old data provider interface is removed. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

Responders: Make the client context more generic This is useufl to allow reusing the responder code with other protocols. Store protocol data and responder state data behind opaque pointers and use tallog_get_type to check they are of the right type. This also allows to store per responder state_ctx so that, for example, the autofs responder does not have to carry useless variables used only by the nss responder. Resolves: https://fedorahosted.org/sssd/ticket/2918 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

RESPONDER: New interface for client registration This is just a beginning of new responder interface to data provider and it is just to make the client registration work. It needs further improvement. The idea is to take the existing interface and make it work better with further extensions of data provider. The current interface has several disadvantages such as it is originally build only for account requests and doesn't take different set of output parameters. It also doesn't work well with integration into tevent-made responders. Reviewed-by: Sumit Bose <sbose@redhat.com> Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

ssh: generate public keys from certificate Resolves: https://fedorahosted.org/sssd/ticket/2711 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

responders: reset ncache after domains are discovered during startup After responders start, they add a lookup operation that discovers the subdomains so that qualifying users works. After this operation is finishes, we need to reset negcache to allow users to be added into the newly discovered domains. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

RESPONDERS: Set default value for umask Resolves: https://fedorahosted.org/sssd/ticket/2468 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

SSH: Run the ssh responder as the SSSD user Reviewed-by: Pavel Reichl <preichl@redhat.com> Reviewed-by: Simo Sorce <simo@redhat.com>

responders: Do not initialize pipe fd if already present Allow to skip initialization of pipe file descriptor if the responder context already has one. Reviewed-by: Pavel Reichl <preichl@redhat.com> Reviewed-by: Simo Sorce <simo@redhat.com>

SSSD: Add the options to specify a UID and GID to run as Adds new command line options --uid and --gid to all SSSD servers, making it possible to switch to another user ID if needed. So far all code still runs as root. Reviewed-by: Pavel Reichl <preichl@redhat.com>

IFP: Provide a SBUS method to reconnect to sysbus Introduces a new method implemented only by the IFP responder. When this method is received, the responder attempts to reconnect to the system bus, if not connected already. Reviewed-by: Pavel Březina <pbrezina@redhat.com> Reviewed-by: Pavel Reichl <preichl@redhat.com>

sbus: Refactor how we export DBus interfaces Most importantly, stop using per connection private data. This doesn't scale when you have more than one thing exporting or exported on a connection. Remove struct sbus_interface and expand sbus_conn_add_interface() function. Remove various struct sbus_interface args to connection initialization functions and make callers use sbus_conn_add_interface() directly. The old method was optimized for exporting one interface on a connection. We'll have connections that export zero, one or more interfaces. To export an interface on a DBus server, call sbus_conn_add_interface() from within the sbus_server_conn_init_fn. To export an interface on a DBus client, call sbus_conn_add_interface() after sbus_new_connection() returns. As before struct sbus_interface represents an object exported via DBus. However it is now talloc allocated. One can set instance data on the struct sbus_interface. This instance data is passed to the various handlers and used in their implementation. However, we now have type safe interface exporting in the various high level sss_process_init() sss_monitor_init() and so on. Introspection support was not in use, and is now gone until we implement it using the metadata (future patch). Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Pavel Březina <pbrezina@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

sbus: Rework sbus to use interface metadata and vtables Previous commits added support for interface metadata and handler vtables. This commit ports sbus_dbus_connection to use them. Port the internal uses of dbus to use the new scheme in a very minimal way. Further cleanup is possible here. This commit provides basic definitions of the internal dbus interfaces. The interfaces aren't fully defined, as the handlers will continue to unpack manually, and often overload DBus methods with different arguments (which is rather unorthodox, but not the end of the world). Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Sumit Bose <sbose@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com> Reviewed-by: Simo Sorce <simo@redhat.com>

Make DEBUG macro invocations variadic Use a script to update DEBUG macro invocations to use it as a variadic macro, supplying format string and its arguments directly, instead of wrapping them in parens. This script was used to update the code: grep -rwl --include '*.[hc]' DEBUG . | while read f; do mv "$f"{,.orig} perl -e \ 'use strict; use File::Slurp; my $text=read_file(\*STDIN); $text=~s#(\bDEBUG\s*\([^(]+)\((.*?)\)\s*\)\s*;#$1$2);#gs; print $text;' < "$f.orig" > "$f" rm "$f.orig" done Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Stephen Gallagher <sgallagh@redhat.com> Reviewed-by: Simo Sorce <simo@redhat.com>

Lookup domains at startup 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

SSH: Fix parsing of names from client requests Try to parse names in the form user@domain first, as that's what sss_ssh_* send in requests when the --domain option is used. Do not parse host names using domain-specific regular expression.

change responder contexts hierarchy https://fedorahosted.org/sssd/ticket/1575 The hierarchy is now: main_ctx -> responder_ctx -> specific_ctx where specific_ctx is one of sudo, pam, etc.

do not leak memory on failure in *_process_init()

RESPONDERS: Create a common file with service names and versions 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/

Include talloc log in our debug facility https://fedorahosted.org/sssd/ticket/1495

SSH: Expire hosts in known_hosts

SSH: Add support for hashed known_hosts https://fedorahosted.org/sssd/ticket/1203

SSH: Allow clients to explicitly specify host alias This change removes the need to canonicalize host names on the responder side - the relevant code was removed.

Use the correct hash table for pending requests 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

SSH: Replace blocking getaddrinfo call in the responder with asynchronous resolver code

Don't give memory context in confdb where not needed

SSH: Responder