From 43de60daf0793063cca3a50c8df17eaec56f4d7a Mon Sep 17 00:00:00 2001
From: smlng <s@mlng.net>
Date: Tue, 7 Feb 2017 13:41:32 +0100
Subject: [PATCH] net: add tcp_hdr_print
---
Makefile.dep | 1 +
sys/Makefile | 3 ++
sys/include/net/tcp.h | 7 +++++
sys/net/transport_layer/tcp/Makefile | 1 +
sys/net/transport_layer/tcp/tcp_hdr_print.c | 33 +++++++++++++++++++++
5 files changed, 45 insertions(+)
create mode 100644 sys/net/transport_layer/tcp/Makefile
create mode 100644 sys/net/transport_layer/tcp/tcp_hdr_print.c
diff --git a/Makefile.dep b/Makefile.dep
index e8732e8e13..0590f99581 100644
--- a/Makefile.dep
+++ b/Makefile.dep
@@ -341,6 +341,7 @@ endif
ifneq (,$(filter gnrc_tcp,$(USEMODULE)))
USEMODULE += inet_csum
USEMODULE += random
+ USEMODULE += tcp
USEMODULE += xtimer
endif
diff --git a/sys/Makefile b/sys/Makefile
index 75102da229..5405e7b5f0 100644
--- a/sys/Makefile
+++ b/sys/Makefile
@@ -79,6 +79,9 @@ endif
ifneq (,$(filter udp,$(USEMODULE)))
DIRS += net/transport_layer/udp
endif
+ifneq (,$(filter tcp,$(USEMODULE)))
+ DIRS += net/transport_layer/tcp
+endif
ifneq (,$(filter hamming256,$(USEMODULE)))
DIRS += ecc/hamming256
diff --git a/sys/include/net/tcp.h b/sys/include/net/tcp.h
index 64d7739cdd..e42bb06ce5 100644
--- a/sys/include/net/tcp.h
+++ b/sys/include/net/tcp.h
@@ -75,6 +75,13 @@ typedef struct __attribute__((packed)) {
uint8_t value[]; /**< Pointer to TCP options Value field */
} tcp_hdr_opt_t;
+/**
+ * @brief Print the given TCP header to STDOUT
+ *
+ * @param[in] hdr TCP header to print
+ */
+void tcp_hdr_print(tcp_hdr_t *hdr);
+
#ifdef __cplusplus
}
#endif
diff --git a/sys/net/transport_layer/tcp/Makefile b/sys/net/transport_layer/tcp/Makefile
new file mode 100644
index 0000000000..48422e909a
--- /dev/null
+++ b/sys/net/transport_layer/tcp/Makefile
@@ -0,0 +1 @@
+include $(RIOTBASE)/Makefile.base
diff --git a/sys/net/transport_layer/tcp/tcp_hdr_print.c b/sys/net/transport_layer/tcp/tcp_hdr_print.c
new file mode 100644
index 0000000000..b7dfcb50d2
--- /dev/null
+++ b/sys/net/transport_layer/tcp/tcp_hdr_print.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2017 HAW Hamburg
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @{
+ *
+ * @file
+ *
+ * @author smlng <s@mlng.net>
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+
+#include "net/tcp.h"
+
+void tcp_hdr_print(tcp_hdr_t *hdr)
+{
+ printf(" src-port: %5" PRIu16 " dst-port: %5" PRIu16 "\n",
+ byteorder_ntohs(hdr->src_port), byteorder_ntohs(hdr->dst_port));
+ printf(" seq-num: %10" PRIu32 " ack-num: %10" PRIu32 "\n",
+ byteorder_ntohl(hdr->seq_num), byteorder_ntohl(hdr->ack_num));
+ printf(" off_ctl: %5" PRIu16 " window: %5" PRIu16 "\n",
+ byteorder_ntohs(hdr->off_ctl), byteorder_ntohs(hdr->window));
+ printf(" cksum: 0x%04" PRIx16 " urgent_ptr: %5" PRIu16 "\n",
+ byteorder_ntohs(hdr->checksum), byteorder_ntohs(hdr->urgent_ptr));
+}
+/** @} */
--
GitLab