gfwleak/mesa-framework-mesa-jump-layer
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🐞 fix(gtp计算头部): 计算GTP头部扩展时判断长度

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This commit is contained in:
yangwei
2023-07-23 11:10:15 +08:00
parent 6fb4738f19
commit 320851f683
4 changed files with 8 additions and 3 deletions
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2
CMakeLists.txt
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@@ -1,4 +1,4 @@
cmake_minimum_required (VERSION 2.8) cmake_minimum_required (VERSION 2.8...3.10)
set(lib_name MESA_jump_layer) set(lib_name MESA_jump_layer)

2
src/CMakeLists.txt
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@@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 2.8) cmake_minimum_required(VERSION 2.8...3.10)
set(MESA_SDK_PREFIX "/opt/MESA" CACHE STRING "MESA Framework Prefix") set(MESA_SDK_PREFIX "/opt/MESA" CACHE STRING "MESA Framework Prefix")

5
src/MESA_jump_layer.cpp
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@@ -211,6 +211,11 @@ static int __mjl_gtp_calc_gtp_hdr_len(const struct gtp_hdr *gtph)
return -1; return -1;
} }
if(gtph->len > 1460)
{
return -1;
}
if(gtph->flags & (GTP_HDR_FLAG_SEQ_NUM | GTP_HDR_FLAG_N_PDU | GTP_HDR_FLAG_NEXT_EXT_HDR)){ if(gtph->flags & (GTP_HDR_FLAG_SEQ_NUM | GTP_HDR_FLAG_N_PDU | GTP_HDR_FLAG_NEXT_EXT_HDR)){
//todo, parse and get seq field //todo, parse and get seq field
p_ext_hdr += 2; //seq field length is 2 bytes p_ext_hdr += 2; //seq field length is 2 bytes

2
test/CMakeLists.txt
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@@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 2.8) cmake_minimum_required(VERSION 2.8...3.10)
include_directories(${CMAKE_SOURCE_DIR}/inc) include_directories(${CMAKE_SOURCE_DIR}/inc)
include_directories(${MESA_SDK_PREFIX}/include) include_directories(${MESA_SDK_PREFIX}/include)