From 8a383b8715fc07145fdc3f3e3dbe6ecd93f72989 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Sun, 07 Jun 2020 00:06:57 +0800
Subject: [PATCH] update tlv_server program, add TLV parser support
---
prj1_tlv/lylib/tlv_pack.h | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/prj1_tlv/lylib/tlv_pack.h b/prj1_tlv/lylib/tlv_pack.h
index 1416fbf..c2fde78 100644
--- a/prj1_tlv/lylib/tlv_pack.h
+++ b/prj1_tlv/lylib/tlv_pack.h
@@ -30,6 +30,7 @@
/* TLV packet Minimum size is fixed bytes + 1 byte data */
#define TLV_MIN_SIZE (TLV_FIXED_SIZE+1)
+#define TLV_MAX_SIZE 32 /* all TLV packet length are no more than 32 bytes */
/* Tag definition */
@@ -53,6 +54,19 @@
int size; /* buffer size */
} tlv_buf_t;
+
+typedef struct tlv_pack_s
+{
+ unsigned char header;
+ unsigned char tag;
+ char len;
+ char data[0];
+ /* followed: $len bytes payload data */
+ /* followed: 2 bytes CRC checksum */
+} tlv_pack_t;
+
+
+
/* Packet TLV message for server reply ACK message: ACK(ack=1)/NAK(ack=0) */
#define ACK 1
#define NAK 0
--
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