commit 0a6fd6b024db77e3a460c22ab8a496a714bc71b7
Author: Jamal Hadi Salim <hadi@mojatatu.com>
Date:   Fri Aug 12 06:10:46 2016 -0400

    actions: add support for cookies
    
    Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>

diff --git a/tc/m_action.c b/tc/m_action.c
index c416d98..75d1a5a 100644
--- a/tc/m_action.c
+++ b/tc/m_action.c
@@ -137,8 +137,7 @@ noexist:
 	return a;
 }
 
-static int
-new_cmd(char **argv)
+static int new_cmd(char **argv)
 {
 	if ((matches(*argv, "change") == 0) ||
 		(matches(*argv, "replace") == 0) ||
@@ -151,8 +150,7 @@ new_cmd(char **argv)
 
 }
 
-int
-parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
+int parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
 {
 	int argc = *argc_p;
 	char **argv = *argv_p;
@@ -160,6 +158,7 @@ parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
 	char k[16];
 	int ok = 0;
 	int eap = 0; /* expect action parameters */
+	__u64 act_ck = 0;
 
 	int ret = 0;
 	int prio = 0;
@@ -215,13 +214,28 @@ done0:
 			tail = NLMSG_TAIL(n);
 			addattr_l(n, MAX_MSG, ++prio, NULL, 0);
 			addattr_l(n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1);
-
-			ret = a->parse_aopt(a, &argc, &argv, TCA_ACT_OPTIONS, n);
+			ret = a->parse_aopt(a, &argc, &argv, TCA_ACT_OPTIONS,
+					    n);
 
 			if (ret < 0) {
-				fprintf(stderr, "bad action parsing\n");
+				fprintf(stderr, "bad action option parsing\n");
 				goto bad_val;
 			}
+
+			if (*argv && strcmp(*argv, "cookie") == 0) {
+				NEXT_ARG();
+				ret = get_u64(&act_ck, *argv, 0);
+				if (ret) {
+					fprintf(stderr, "bad cookie <%s>\n",
+						*argv);
+					goto bad_val;
+				}
+				argc--;
+				argv++;
+			}
+
+			if (act_ck)
+				addattr64(n, MAX_MSG, TCA_ACT_COOKIE, act_ck);
 			tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
 			ok++;
 		}
@@ -246,8 +260,7 @@ bad_val:
 	return -1;
 }
 
-static int
-tc_print_one_action(FILE *f, struct rtattr *arg)
+static int tc_print_one_action(FILE *f, struct rtattr *arg)
 {
 
 	struct rtattr *tb[TCA_ACT_MAX + 1];
@@ -277,6 +290,10 @@ tc_print_one_action(FILE *f, struct rtattr *arg)
 	if (show_stats && tb[TCA_ACT_STATS]) {
 		fprintf(f, "\tAction statistics:\n");
 		print_tcstats2_attr(f, tb[TCA_ACT_STATS], "\t", NULL);
+		if (tb[TCA_ACT_COOKIE]) {
+			__u64 acookie = rta_getattr_u64(tb[TCA_ACT_COOKIE]);
+			fprintf(f, "cookie 0x%llx ",  acookie);
+		}
 		fprintf(f, "\n");
 	}