Tools: hv: Gather DNS information

Now, gather DNS information. Invoke an external script (that can be
distro dependent) to gather the DNS information.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 026bf0e5d18080e33f8f095a8163092272c2eb01..cfa23a115d189325619d434e426c221bcbe4fee8 100644 (file)
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -549,6 +549,29 @@ static void kvp_get_ipconfig_info(char *if_name,
        kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way,
                                (MAX_GATEWAY_SIZE * 2), INET6_ADDRSTRLEN, 1);
 
+
+       /*
+        * Gather the DNS  state.
+        * Since there is no standard way to get this information
+        * across various distributions of interest; we just invoke
+        * an external script that needs to be ported across distros
+        * of interest.
+        *
+        * Following is the expected format of the information from the script:
+        *
+        * ipaddr1 (nameserver1)
+        * ipaddr2 (nameserver2)
+        * .
+        * .
+        */
+
+       sprintf(cmd, "%s",  "hv_get_dns_info");
+
+       /*
+        * Execute the command to gather DNS info.
+        */
+       kvp_process_ipconfig_file(cmd, (char *)buffer->dns_addr,
+                               (MAX_IP_ADDR_SIZE * 2), INET_ADDRSTRLEN, 0);
 }