packet: Report socket mclist info via diag module

The info is reported as an array of packet_diag_mclist structures. Each
includes not only the directly configured values (index, type, etc), but
also the "count".

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/packet_diag.h b/include/linux/packet_diag.h
index 3781ea4bc829..ea2e8923bd7e 100644
--- a/include/linux/packet_diag.h
+++ b/include/linux/packet_diag.h
@@ -13,6 +13,7 @@ struct packet_diag_req {
 };
 
 #define PACKET_SHOW_INFO        0x00000001 /* Basic packet_sk information */
+#define PACKET_SHOW_MCLIST      0x00000002 /* A set of packet_diag_mclist-s */
 
 struct packet_diag_msg {
         __u8    pdiag_family;
@@ -25,6 +26,7 @@ struct packet_diag_msg {
 
 enum {
         PACKET_DIAG_INFO,
+        PACKET_DIAG_MCLIST,
 
         PACKET_DIAG_MAX,
 };
@@ -44,4 +46,12 @@ struct packet_diag_info {
 #define PDI_LOSS        0x10
 };
 
+struct packet_diag_mclist {
+        __u32   pdmc_index;
+        __u32   pdmc_count;
+        __u16   pdmc_type;
+        __u16   pdmc_alen;
+        __u8    pdmc_addr[MAX_ADDR_LEN];
+};
+
 #endif