* socketutils.c: (print_sockeaddr_by_inode): Call netlink_print.
(netlink_send_query, netlink_parse_response, netlink_print): New functions.
---
socketutils.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 66 insertions(+), 1 deletion(-)
diff --git a/socketutils.c b/socketutils.c
index 8851198..9159842 100644
--- a/socketutils.c
+++ b/socketutils.c
@@ -34,7 +34,9 @@
#include <linux/sock_diag.h>
#include <linux/inet_diag.h>
#include <linux/unix_diag.h>
+#include <linux/netlink_diag.h>
#include <linux/rtnetlink.h>
+# include "xlat/netlink_protocols.h"
#if !defined NETLINK_SOCK_DIAG && defined NETLINK_INET_DIAG
# define NETLINK_SOCK_DIAG NETLINK_INET_DIAG
@@ -335,6 +337,60 @@ unix_parse_response(const char *proto_name, const void
*data,
}
static bool
+netlink_send_query(const int fd, const unsigned long inode)
+{
+ struct {
+ const struct nlmsghdr nlh;
+ const struct netlink_diag_req idr;
+ } req = {
+ .nlh = {
+ .nlmsg_len = sizeof(req),
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST
+ },
+ .idr = {
+ .sdiag_family = AF_NETLINK,
+ .sdiag_protocol = NDIAG_PROTO_ALL,
+ .ndiag_ino = (unsigned) inode,
+ .ndiag_show = NDIAG_SHOW_MEMINFO
+ }
+ };
+ return send_query(fd, &req, sizeof(req));
+}
+
+static int
+netlink_parse_response(const char *proto_name, const void *data,
+ const int data_len, const unsigned long inode)
+{
+ const struct netlink_diag_msg *const diag_msg = data;
+ const char *netlink_proto;
+ char *details;
+
+ if (data_len < (int) NLMSG_LENGTH(sizeof(*diag_msg)))
+ return -1;
+ if (diag_msg->ndiag_ino != inode)
+ return 0;
+
+ if (diag_msg->ndiag_family != AF_NETLINK)
+ return -1;
+
+ netlink_proto = xlookup(netlink_protocols,
+ diag_msg->ndiag_protocol);
+
+ if (netlink_proto) {
+ if (asprintf(&details, "%s:[%s]", proto_name,
+ netlink_proto) < 0)
+ return -1;
+ } else {
+ if (asprintf(&details, "%s:[%u]", proto_name,
+ (unsigned) diag_msg->ndiag_protocol) < 0)
+ return -1;
+ }
+
+ return cache_and_print_inode_details(inode, details);
+}
+
+static bool
unix_print(const int fd, const unsigned long inode)
{
return unix_send_query(fd, inode)
@@ -365,6 +421,14 @@ udp_v6_print(const int fd, const unsigned long inode)
return inet_print(fd, AF_INET6, IPPROTO_UDP, inode, "UDPv6");
}
+static bool
+netlink_print(const int fd, const unsigned long inode)
+{
+ return netlink_send_query(fd, inode)
+ && receive_responses(fd, inode, "NETLINK",
+ netlink_parse_response);
+}
+
/* Given an inode number of a socket, print out the details
* of the ip address and port. */
bool
@@ -378,7 +442,8 @@ print_sockaddr_by_inode(const unsigned long inode, const
char *const proto_name)
{ "UDP", udp_v4_print },
{ "TCPv6", tcp_v6_print },
{ "UDPv6", udp_v6_print },
- { "UNIX", unix_print }
+ { "UNIX", unix_print },
+ { "NETLINK", netlink_print }
};
const int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
--
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