Hello,
The attached patch fixes: https://fedorahosted.org/sssd/ticket/2860
This provides an option used primarily for testing purpose to ignore
network status changes from the netlink interface(helpful when sssd
should remaining in offline/online mode)
===================================
Before the patch, restarting the network triggers sssd to go back online
(Mon Aug 8 15:50:18 2016) [sssd] [route_msg_debug_print] (0x1000):
route idx 1 flags 0 family 10 addr 2002:ac10::/28
(Mon Aug 8 15:50:18 2016) [sssd] [network_status_change_cb]
(0x2000): A networking status change detected signaling providers to
reset offline status
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_add_timeout] (0x2000):
0x21af1a0
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_remove_timeout] (0x2000):
0x21af1a0
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_dispatch] (0x4000): dbus
conn: 0x21ba170
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_dispatch] (0x4000):
Dispatching.
(Mon Aug 8 15:50:18 2016) [sssd] [message_type] (0x0200): netlink
Message type: 24
(Mon Aug 8 15:50:18 2016) [sssd] [route_msg_debug_print] (0x1000):
route idx 1 flags 0 family 10 addr 2002:c0a8::/32
(Mon Aug 8 15:50:18 2016) [sssd] [network_status_change_cb]
(0x2000): A networking status change detected signaling providers to
reset offline status
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_add_timeout] (0x2000):
0x21bd2a0
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_remove_timeout] (0x2000):
0x21bd2a0
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_dispatch] (0x4000): dbus
conn: 0x21ba170
(Mon Aug 8 15:50:18 2016) [sssd] [sbus_dispatch] (0x4000):
Dispatching.
(Mon Aug 8 15:50:18 2016) [sssd] [message_type] (0x0200): netlink
Message type: 24
After the patch,
# pkill -USR1 sssd
Restart the network, sssd remains offline
# service network restart
Test backend lookup with no cache shows backend is still offline
# id aduser@ad.domain
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[sbus_dispatch] (0x4000): dbus conn: 0x1853d60
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[sbus_dispatch] (0x4000): Dispatching.
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[sbus_message_handler] (0x2000): Received SBUS method
org.freedesktop.sssd.dataprovider.getAccountInfo on path
/org/freedesktop/sssd/dataprovider
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[sbus_get_sender_id_send] (0x2000): Not a sysbus message, quit
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[dp_attach_req] (0x0400): DP Request [Account #2]: New request. Flags
[0x0001].
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[dp_attach_req] (0x0400): Number of active DP request: 1
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[_dp_req_recv] (0x0400): DP Request [Account #2]: Receiving request data.
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[dp_req_reply_gen_error] (0x0080): DP Request [Account #2]: Finished.
Backend is currently offline.
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[dp_table_value_destructor] (0x0400): Removing
[0:1:0x0001:1:1::AD.JSTEPHEN:name=myaduser@ad.jstephen] from reply table
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[dp_req_destructor] (0x0400): DP Request [Account #2]: Request removed.
(Mon Aug 8 16:44:17 2016) [sssd[be[AD.JSTEPHEN]]]
[dp_req_destructor] (0x0400): Number of active DP request: 0
(Mon Aug 8 16:44:17 2016) [sssd[nss]] [sss_dp_get_reply]
(0x0010): The Data Provider returned an error
[org.freedesktop.sssd.Error.DataProvider.Offline]
Kind regards,
Justin Stephenson
>From a22f1b5f1fe0ae8bd60c238b0069a26f1360e02b Mon Sep 17 00:00:00 2001
From: Justin Stephenson <jstep...@redhat.com>
Date: Tue, 9 Aug 2016 11:59:49 -0400
Subject: [PATCH] Add support for disabling netlink use with --disable-netlink
option
Resolves:
https://fedorahosted.org/sssd/ticket/2860
---
src/monitor/monitor.c | 24 +++++++++++++++---------
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/src/monitor/monitor.c b/src/monitor/monitor.c
index 89dd0a91d1fbd41dd853cf8745de732b7059d02b..e7537d7303d4c9ef1fef7d073ba7d171a78c8087 100644
--- a/src/monitor/monitor.c
+++ b/src/monitor/monitor.c
@@ -2341,7 +2341,8 @@ static void missing_resolv_conf(struct tevent_context *ev,
}
static int monitor_process_init(struct mt_ctx *ctx,
- const char *config_file)
+ const char *config_file,
+ bool opt_netlinkoff)
{
TALLOC_CTX *tmp_ctx;
struct tevent_signal *tes;
@@ -2472,12 +2473,14 @@ static int monitor_process_init(struct mt_ctx *ctx,
return ret;
}
- ret = setup_netlink(ctx, ctx->ev, network_status_change_cb,
- ctx, &ctx->nlctx);
- if (ret != EOK) {
- DEBUG(SSSDBG_OP_FAILURE,
- "Cannot set up listening for network notifications\n");
- return ret;
+ if (opt_netlinkoff == false) {
+ ret = setup_netlink(ctx, ctx->ev, network_status_change_cb,
+ ctx, &ctx->nlctx);
+ if (ret != EOK) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ "Cannot set up listening for network notifications\n");
+ return ret;
+ }
}
/* start providers */
@@ -2773,6 +2776,7 @@ int main(int argc, const char *argv[])
int opt_interactive = 0;
int opt_genconf = 0;
int opt_version = 0;
+ int opt_netlinkoff = 0;
char *opt_config_file = NULL;
char *config_file = NULL;
int flags = 0;
@@ -2789,6 +2793,8 @@ int main(int argc, const char *argv[])
_("Become a daemon (default)"), NULL }, \
{"interactive", 'i', POPT_ARG_NONE, &opt_interactive, 0, \
_("Run interactive (not a daemon)"), NULL}, \
+ {"disable-netlink", '\0', POPT_ARG_NONE, &opt_netlinkoff, 0, \
+ _("Disable netlink interface"), NULL}, \
{"config", 'c', POPT_ARG_STRING, &opt_config_file, 0, \
_("Specify a non-default config file"), NULL}, \
{"genconf", 'g', POPT_ARG_NONE, &opt_genconf, 0, \
@@ -2991,8 +2997,8 @@ int main(int argc, const char *argv[])
monitor->ev = main_ctx->event_ctx;
talloc_steal(main_ctx, monitor);
- ret = monitor_process_init(monitor,
- config_file);
+ ret = monitor_process_init(monitor, config_file,
+ opt_netlinkoff);
if (ret != EOK) return 3;
talloc_free(tmp_ctx);
--
2.7.4
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