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Date:   Mon, 22 Jan 2018 18:46:53 +0200
From:   Serhey Popovych <serhe.popovych@...il.com>
To:     netdev@...r.kernel.org
Cc:     jbenc@...hat.com, u9012063@...il.com, julien@...ulusnetworks.com
Subject: [PATCH iproute2-next 1/2] ip/tunnel: Be consistent when printing tunnel collect metadata

Print only "external" if collect meta data attribute
is given: rest of parameters are irrelevant. This is
to follow gre6.

For JSON output use "collect_metadata" for iptnl, ip6tnl and
gre to match with vxlan, geneve and gre6 modules.

Signed-off-by: Serhey Popovych <serhe.popovych@...il.com>
---
 ip/link_gre.c    |   27 ++++++++++++---------------
 ip/link_ip6tnl.c |    6 ++++--
 ip/link_iptnl.c  |    6 ++++--
 3 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/ip/link_gre.c b/ip/link_gre.c
index 674603b..131a087 100644
--- a/ip/link_gre.c
+++ b/ip/link_gre.c
@@ -395,7 +395,7 @@ get_failed:
 	return 0;
 }
 
-static void gre_print_direct_opt(FILE *f, struct rtattr *tb[])
+static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
 {
 	char s2[64];
 	const char *local = "any";
@@ -405,6 +405,14 @@ static void gre_print_direct_opt(FILE *f, struct rtattr *tb[])
 	__u8 ttl = 0;
 	__u8 tos = 0;
 
+	if (!tb)
+		return;
+
+	if (tb[IFLA_GRE_COLLECT_METADATA]) {
+		print_bool(PRINT_ANY, "collect_metadata", "external", true);
+		return;
+	}
+
 	if (tb[IFLA_GRE_REMOTE]) {
 		unsigned int addr = rta_getattr_u32(tb[IFLA_GRE_REMOTE]);
 
@@ -455,6 +463,9 @@ static void gre_print_direct_opt(FILE *f, struct rtattr *tb[])
 			print_bool(PRINT_JSON, "pmtudisc", NULL, true);
 	}
 
+	if (tb[IFLA_GRE_IGNORE_DF] && rta_getattr_u8(tb[IFLA_GRE_IGNORE_DF]))
+		print_bool(PRINT_ANY, "ignore_df", "ignore-df ", true);
+
 	if (tb[IFLA_GRE_IFLAGS])
 		iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]);
 
@@ -488,20 +499,6 @@ static void gre_print_direct_opt(FILE *f, struct rtattr *tb[])
 				    "fwmark", "fwmark 0x%x ", fwmark);
 		}
 	}
-}
-
-static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
-{
-	if (!tb)
-		return;
-
-	if (!tb[IFLA_GRE_COLLECT_METADATA])
-		gre_print_direct_opt(f, tb);
-	else
-		print_bool(PRINT_ANY, "external", "external ", true);
-
-	if (tb[IFLA_GRE_IGNORE_DF] && rta_getattr_u8(tb[IFLA_GRE_IGNORE_DF]))
-		print_bool(PRINT_ANY, "ignore_df", "ignore-df ", true);
 
 	if (tb[IFLA_GRE_ERSPAN_INDEX]) {
 		__u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]);
diff --git a/ip/link_ip6tnl.c b/ip/link_ip6tnl.c
index 8f5c9bd..e4db643 100644
--- a/ip/link_ip6tnl.c
+++ b/ip/link_ip6tnl.c
@@ -341,8 +341,10 @@ static void ip6tunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb
 	if (!tb)
 		return;
 
-	if (tb[IFLA_IPTUN_COLLECT_METADATA])
-		print_bool(PRINT_ANY, "external", "external ", true);
+	if (tb[IFLA_IPTUN_COLLECT_METADATA]) {
+		print_bool(PRINT_ANY, "collect_metadata", "external", true);
+		return;
+	}
 
 	if (tb[IFLA_IPTUN_FLAGS])
 		flags = rta_getattr_u32(tb[IFLA_IPTUN_FLAGS]);
diff --git a/ip/link_iptnl.c b/ip/link_iptnl.c
index ce3855c..93a1eb4 100644
--- a/ip/link_iptnl.c
+++ b/ip/link_iptnl.c
@@ -370,8 +370,10 @@ static void iptunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[
 	if (!tb)
 		return;
 
-	if (tb[IFLA_IPTUN_COLLECT_METADATA])
-		print_bool(PRINT_ANY, "external", "external ", true);
+	if (tb[IFLA_IPTUN_COLLECT_METADATA]) {
+		print_bool(PRINT_ANY, "collect_metadata", "external", true);
+		return;
+	}
 
 	if (tb[IFLA_IPTUN_PROTO]) {
 		switch (rta_getattr_u8(tb[IFLA_IPTUN_PROTO])) {
-- 
1.7.10.4

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