From 14115da9fb81217c84d5b7a71382f498acac3769 Mon Sep 17 00:00:00 2001
From: Jeffrey Altman <jaltman@secure-endpoints.com>
Date: Thu, 14 Jun 2007 21:55:18 +0000
Subject: [PATCH] DEVEL15-windows-volstate-update-post-network-change-20070614

When the system's IP address list changes we invalidate the existing
RX connections and probe all of the servers.  A better algorithm is
to probe all vldb servers, invalidate the rx connections, and then
probe all file servers.


(cherry picked from commit 0187bf2feb9a191ba0b7868905854c603cc5092c)
---
 src/WINNT/afsd/cm_daemon.c | 5 +++--
 src/WINNT/afsd/cm_server.c | 8 +++++++-
 src/WINNT/afsd/cm_server.h | 2 ++
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/WINNT/afsd/cm_daemon.c b/src/WINNT/afsd/cm_daemon.c
index 759db2ffdc..7dfc5ad802 100644
--- a/src/WINNT/afsd/cm_daemon.c
+++ b/src/WINNT/afsd/cm_daemon.c
@@ -59,10 +59,11 @@ void cm_IpAddrDaemon(long parm)
     while (daemon_ShutdownFlag == 0) {
 	DWORD Result = NotifyAddrChange(NULL,NULL);
 	if (Result == NO_ERROR && daemon_ShutdownFlag == 0) {
-	    osi_Log0(afsd_logp, "cm_IpAddrDaemon CheckDownServers");
 	    Sleep(2500);
+	    osi_Log0(afsd_logp, "cm_IpAddrDaemon CheckDownServers");
+            cm_CheckServers(CM_FLAG_CHECKVLDBSERVERS | CM_FLAG_CHECKUPSERVERS | CM_FLAG_CHECKDOWNSERVERS, NULL);
 	    cm_ForceNewConnectionsAllServers();
-            cm_CheckServers(CM_FLAG_CHECKUPSERVERS | CM_FLAG_CHECKDOWNSERVERS, NULL);
+            cm_CheckServers(CM_FLAG_CHECKFILESERVERS | CM_FLAG_CHECKUPSERVERS | CM_FLAG_CHECKDOWNSERVERS, NULL);
 	    smb_CheckVCs();
 	}	
     }
diff --git a/src/WINNT/afsd/cm_server.c b/src/WINNT/afsd/cm_server.c
index 89f749518b..9861d65c51 100644
--- a/src/WINNT/afsd/cm_server.c
+++ b/src/WINNT/afsd/cm_server.c
@@ -201,6 +201,7 @@ void cm_CheckServers(long flags, cm_cell_t *cellp)
     cm_server_t *tsp;
     int doPing;
     int isDown;
+    int isFS;
 
     lock_ObtainWrite(&cm_serverLock);
     for (tsp = cm_allServersp; tsp; tsp = tsp->allNextp) {
@@ -212,6 +213,7 @@ void cm_CheckServers(long flags, cm_cell_t *cellp)
 
         doPing = 0;
         isDown = tsp->flags & CM_SERVERFLAG_DOWN;
+        isFS   = tsp->type == CM_SERVER_FILE;
 
         /* only do the ping if the cell matches the requested cell, or we're
          * matching all cells (cellp == NULL), and if we've requested to ping
@@ -219,7 +221,11 @@ void cm_CheckServers(long flags, cm_cell_t *cellp)
          */
         if ((cellp == NULL || cellp == tsp->cellp) &&
              ((isDown && (flags & CM_FLAG_CHECKDOWNSERVERS)) ||
-               (!isDown && (flags & CM_FLAG_CHECKUPSERVERS)))) {
+               (!isDown && (flags & CM_FLAG_CHECKUPSERVERS))) &&
+             ((!(flags & CM_FLAG_CHECKVLDBSERVERS) || 
+               !isFS && (flags & CM_FLAG_CHECKVLDBSERVERS)) &&
+              (!(flags & CM_FLAG_CHECKFILESERVERS) || 
+                 isFS && (flags & CM_FLAG_CHECKFILESERVERS)))) {
             doPing = 1;
         }	/* we're supposed to check this up/down server */
         lock_ReleaseMutex(&tsp->mx);
diff --git a/src/WINNT/afsd/cm_server.h b/src/WINNT/afsd/cm_server.h
index ae40886c33..85c72c257f 100644
--- a/src/WINNT/afsd/cm_server.h
+++ b/src/WINNT/afsd/cm_server.h
@@ -67,6 +67,8 @@ typedef struct cm_serverRef {
 /* flags for procedures */
 #define CM_FLAG_CHECKUPSERVERS		1	/* check working servers */
 #define CM_FLAG_CHECKDOWNSERVERS	2	/* check down servers */
+#define CM_FLAG_CHECKVLDBSERVERS        4       /* check only vldb servers */
+#define CM_FLAG_CHECKFILESERVERS        8       /* check only file servers */
 
 /* values for ipRank */
 #define CM_IPRANK_TOP	5000	/* on same machine */