netdev - [PATCH iproute2 v2 2/5] tc_util: add an option to print masked numbers with/without a newline

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Message-Id: <20191114124441.2261-3-roid@mellanox.com>
Date:   Thu, 14 Nov 2019 14:44:38 +0200
From:   Roi Dayan <roid@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     David Ahern <dsahern@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Jiri Pirko <jiri@...lanox.com>,
        Eli Britstein <elibr@...lanox.com>,
        Roi Dayan <roid@...lanox.com>
Subject: [PATCH iproute2 v2 2/5] tc_util: add an option to print masked numbers with/without a newline

From: Eli Britstein <elibr@...lanox.com>

Add an option to print masked numbers with or without a newline, as a
pre-step towards using a common function.

Signed-off-by: Eli Britstein <elibr@...lanox.com>
Reviewed-by: Roi Dayan <roid@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
 tc/f_flower.c |  4 ++--
 tc/m_ct.c     |  4 ++--
 tc/tc_util.c  | 25 +++++++++++++------------
 tc/tc_util.h  |  6 +++---
 4 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/tc/f_flower.c b/tc/f_flower.c
index a2a230162f78..41b81217e47e 100644
--- a/tc/f_flower.c
+++ b/tc/f_flower.c
@@ -1847,13 +1847,13 @@ static void flower_print_ct_label(struct rtattr *attr,
 static void flower_print_ct_zone(struct rtattr *attr,
 				 struct rtattr *mask_attr)
 {
-	print_masked_u16("ct_zone", attr, mask_attr);
+	print_masked_u16("ct_zone", attr, mask_attr, false);
 }
 
 static void flower_print_ct_mark(struct rtattr *attr,
 				 struct rtattr *mask_attr)
 {
-	print_masked_u32("ct_mark", attr, mask_attr);
+	print_masked_u32("ct_mark", attr, mask_attr, false);
 }
 
 static void flower_print_key_id(const char *name, struct rtattr *attr)
diff --git a/tc/m_ct.c b/tc/m_ct.c
index d79eb5e361ac..8df2f6103601 100644
--- a/tc/m_ct.c
+++ b/tc/m_ct.c
@@ -466,8 +466,8 @@ static int print_ct(struct action_util *au, FILE *f, struct rtattr *arg)
 		print_string(PRINT_ANY, "action", " %s", "clear");
 	}
 
-	print_masked_u32("mark", tb[TCA_CT_MARK], tb[TCA_CT_MARK_MASK]);
-	print_masked_u16("zone", tb[TCA_CT_ZONE], NULL);
+	print_masked_u32("mark", tb[TCA_CT_MARK], tb[TCA_CT_MARK_MASK], false);
+	print_masked_u16("zone", tb[TCA_CT_ZONE], NULL, false);
 	ct_print_labels(tb[TCA_CT_LABELS], tb[TCA_CT_LABELS_MASK]);
 	ct_print_nat(ct_action, tb);
 
diff --git a/tc/tc_util.c b/tc/tc_util.c
index 6bd098feff14..e9f3e5a227f9 100644
--- a/tc/tc_util.c
+++ b/tc/tc_util.c
@@ -918,7 +918,7 @@ compat_xstats:
 static void print_masked_type(__u32 type_max,
 			      __u32 (*rta_getattr_type)(const struct rtattr *),
 			      const char *name, struct rtattr *attr,
-			      struct rtattr *mask_attr)
+			      struct rtattr *mask_attr, bool newline)
 {
 	SPRINT_BUF(namefrm);
 	__u32 value, mask;
@@ -939,23 +939,24 @@ static void print_masked_type(__u32 type_max,
 			char mask_name[SPRINT_BSIZE-6];
 
 			sprintf(mask_name, "%s_mask", name);
-			print_string(PRINT_FP, NULL, "%s  ", _SL_);
-			sprintf(namefrm, "%s %%u", mask_name);
+			if (newline)
+				print_string(PRINT_FP, NULL, "%s ", _SL_);
+			sprintf(namefrm, " %s %%u", mask_name);
 			print_hu(PRINT_ANY, mask_name, namefrm, mask);
 		}
 	} else {
 		done = sprintf(out, "%u", value);
 		if (mask != type_max)
 			sprintf(out + done, "/0x%x", mask);
-
-		print_string(PRINT_FP, NULL, "%s  ", _SL_);
-		sprintf(namefrm, "%s %%s", name);
+		if (newline)
+			print_string(PRINT_FP, NULL, "%s ", _SL_);
+		sprintf(namefrm, " %s %%s", name);
 		print_string(PRINT_ANY, name, namefrm, out);
 	}
 }
 
 void print_masked_u32(const char *name, struct rtattr *attr,
-		      struct rtattr *mask_attr)
+		      struct rtattr *mask_attr, bool newline)
 {
 	__u32 value, mask;
 	SPRINT_BUF(namefrm);
@@ -972,12 +973,12 @@ void print_masked_u32(const char *name, struct rtattr *attr,
 	if (mask != UINT32_MAX)
 		sprintf(out + done, "/0x%x", mask);
 
-	sprintf(namefrm, " %s %%s", name);
+	sprintf(namefrm, "%s %s %%s", newline ? "\n " : "", name);
 	print_string(PRINT_ANY, name, namefrm, out);
 }
 
 void print_masked_u16(const char *name, struct rtattr *attr,
-		      struct rtattr *mask_attr)
+		      struct rtattr *mask_attr, bool newline)
 {
 	__u16 value, mask;
 	SPRINT_BUF(namefrm);
@@ -994,7 +995,7 @@ void print_masked_u16(const char *name, struct rtattr *attr,
 	if (mask != UINT16_MAX)
 		sprintf(out + done, "/0x%x", mask);
 
-	sprintf(namefrm, " %s %%s", name);
+	sprintf(namefrm, "%s %s %%s", newline ? "\n " : "", name);
 	print_string(PRINT_ANY, name, namefrm, out);
 }
 
@@ -1004,8 +1005,8 @@ static __u32 __rta_getattr_u8_u32(const struct rtattr *attr)
 }
 
 void print_masked_u8(const char *name, struct rtattr *attr,
-		     struct rtattr *mask_attr)
+		     struct rtattr *mask_attr, bool newline)
 {
 	print_masked_type(UINT8_MAX,  __rta_getattr_u8_u32, name, attr,
-			  mask_attr);
+			  mask_attr, newline);
 }
diff --git a/tc/tc_util.h b/tc/tc_util.h
index 7e5d93cbac66..9adf2ab42138 100644
--- a/tc/tc_util.h
+++ b/tc/tc_util.h
@@ -128,9 +128,9 @@ int action_a2n(char *arg, int *result, bool allow_num);
 bool tc_qdisc_block_exists(__u32 block_index);
 
 void print_masked_u32(const char *name, struct rtattr *attr,
-		      struct rtattr *mask_attr);
+		      struct rtattr *mask_attr, bool newline);
 void print_masked_u16(const char *name, struct rtattr *attr,
-		      struct rtattr *mask_attr);
+		      struct rtattr *mask_attr, bool newline);
 void print_masked_u8(const char *name, struct rtattr *attr,
-		     struct rtattr *mask_attr);
+		     struct rtattr *mask_attr, bool newline);
 #endif
-- 
2.8.4