[Patch iproute2] ss: add UNIX_DIAG_VFS and UNIX_DIAG_ICONS for unix sockets

[Cong Wang]

UNIX_DIAG_VFS and UNIX_DIAG_ICONS are never used by ss,
make them available in ss -e output.

Cc: Stephen Hemminger <step...@networkplumber.org>
Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
---
 misc/ss.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/misc/ss.c b/misc/ss.c
index 41e7762b..d28bc1ec 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -16,6 +16,7 @@
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 #include <sys/uio.h>
+#include <sys/sysmacros.h>
 #include <netinet/in.h>
 #include <string.h>
 #include <errno.h>
@@ -3604,6 +3605,28 @@ static int unix_show_sock(const struct sockaddr_nl 
*addr, struct nlmsghdr *nlh,
                        out(" %c-%c",
                            mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
                }
+               if (tb[UNIX_DIAG_VFS]) {
+                       struct unix_diag_vfs uv;
+
+                       memcpy(&uv, RTA_DATA(tb[UNIX_DIAG_VFS]), sizeof(uv));
+                       out(" ino:%u dev:%u/%u", uv.udiag_vfs_ino, 
major(uv.udiag_vfs_dev),
+                                                minor(uv.udiag_vfs_dev));
+               }
+               if (tb[UNIX_DIAG_ICONS]) {
+                       int len = RTA_PAYLOAD(tb[UNIX_DIAG_ICONS]);
+                       __u32 *peers = malloc(len);
+                       int i;
+
+                       if (!peers) {
+                               fprintf(stderr, "ss: failed to malloc 
buffer\n");
+                               abort();
+                       }
+                       memcpy(peers, RTA_DATA(tb[UNIX_DIAG_ICONS]), len);
+                       out(" peers:");
+                       for (i = 0; i < len / sizeof(__u32); i++)
+                               out(" %u", peers[i]);
+                       free(peers);
+               }
        }
 
        return 0;
@@ -3641,6 +3664,8 @@ static int unix_show_netlink(struct filter *f)
        req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
        if (show_mem)
                req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
+       if (show_details)
+               req.r.udiag_show |= UDIAG_SHOW_VFS | UDIAG_SHOW_ICONS;
 
        return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
 }
-- 
2.14.4