Tools: hv: Gather subnet information

Now, gather sub-net information for the specified interface.

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>

1 files changed, 29 insertions, 2 deletions

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 13ae098a0114..de1724cbaf59 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -534,6 +534,7 @@ kvp_get_ip_address(int family, char *if_name, int op,
         struct ifaddrs *ifap;
         struct ifaddrs *curp;
         int offset = 0;
+        int sn_offset = 0;
         const char *str;
         int error = 0;
         char *buffer;
@@ -594,12 +595,38 @@ kvp_get_ip_address(int family, char *if_name, int op,
                          * Gather info other than the IP address.
                          * IP address info will be gathered later.
                          */
-                        if (curp->ifa_addr->sa_family == AF_INET)
+                        if (curp->ifa_addr->sa_family == AF_INET) {
                                 ip_buffer->addr_family |= ADDR_FAMILY_IPV4;
-                        else
+                                /*
+                                 * Get subnet info.
+                                 */
+                                error = kvp_process_ip_address(
+                                                             curp->ifa_netmask,
+                                                             AF_INET,
+                                                             (char *)
+                                                             ip_buffer->sub_net,
+                                                             length,
+                                                             &sn_offset);
+                                if (error)
+                                        goto gather_ipaddr;
+                        } else {
                                 ip_buffer->addr_family |= ADDR_FAMILY_IPV6;
+                                /*
+                                 * Get subnet info.
+                                 */
+                                error = kvp_process_ip_address(
+                                                             curp->ifa_netmask,
+                                                             AF_INET6,
+                                                             (char *)
+                                                             ip_buffer->sub_net,
+                                                             length,
+                                                             &sn_offset);
+                                if (error)
+                                        goto gather_ipaddr;
+                        }
                 }
 
+gather_ipaddr:
                 error = kvp_process_ip_address(curp->ifa_addr,
                                                 curp->ifa_addr->sa_family,
                                                 buffer,