From: JingPiao Chen <chenjingpiao@gmail.com>
Date: Tue, 15 Aug 2017 04:41:17 +0000 (+0800)
Subject: netlink: add basic decoding of NETLINK_ROUTE tcamsg attributes
X-Git-Tag: v4.19~94
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=41d9c32e9548d44e6fac43fbeefa7cfec586f015;p=strace

netlink: add basic decoding of NETLINK_ROUTE tcamsg attributes

* rtnl_tc_action.c: Include "nlattr.h" and "xlat/rtnl_tc_action_attrs.h".
(decode_tcamsg): Call decode_nlattr.
* xlat/rtnl_tc_action_attrs.in: New file.

Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
---

diff --git a/rtnl_tc_action.c b/rtnl_tc_action.c
index 5b6b49b7..ca0b72be 100644
--- a/rtnl_tc_action.c
+++ b/rtnl_tc_action.c
@@ -29,15 +29,26 @@
 
 #include "defs.h"
 #include "netlink_route.h"
+#include "nlattr.h"
 #include "print_fields.h"
 
 #include "netlink.h"
 #include <linux/rtnetlink.h>
 
+#include "xlat/rtnl_tc_action_attrs.h"
+
 DECL_NETLINK_ROUTE_DECODER(decode_tcamsg)
 {
 	struct tcamsg tca = { .tca_family = family };
 
 	PRINT_FIELD_XVAL("{", tca, tca_family, addrfams, "AF_???");
 	tprints("}");
+
+	const size_t offset = NLMSG_ALIGN(sizeof(tca));
+	if (len > offset) {
+		tprints(", ");
+		decode_nlattr(tcp, addr + offset, len - offset,
+			      rtnl_tc_action_attrs, "TCA_ACT_???",
+			      NULL, 0, NULL);
+	}
 }
diff --git a/xlat/rtnl_tc_action_attrs.in b/xlat/rtnl_tc_action_attrs.in
new file mode 100644
index 00000000..ebb3dd47
--- /dev/null
+++ b/xlat/rtnl_tc_action_attrs.in
@@ -0,0 +1,7 @@
+TCA_ACT_UNSPEC		0
+TCA_ACT_KIND		1
+TCA_ACT_OPTIONS		2
+TCA_ACT_INDEX		3
+TCA_ACT_STATS		4
+TCA_ACT_PAD		5
+TCA_ACT_COOKIE		6