3rd-party/libtins
1
0
Fork 0
mirror of https://github.com/mfontanini/libtins synced 2026-01-23 02:35:57 +01:00
Code Issues Releases Wiki Activity

Added malformed_packet exception. Every class except Dot11* use it.

Browse Source
This commit is contained in:
Matias Fontanini
2013-04-18 00:12:20 -03:00
parent 923f51ae15
commit 3fd1b3d37d
53 changed files with 267 additions and 159 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/pppoe.cpp
View File

@@ -32,6 +32,7 @@
#endif
#include <cstring>
#include "pppoe.h"
#include "exceptions.h"
namespace Tins {
@@ -45,22 +46,21 @@ PPPoE::PPPoE()
PPPoE::PPPoE(const uint8_t *buffer, uint32_t total_sz)
: _tags_size()
{
const char *err_msg = "Not enough size for a PPPoE";
if(total_sz < sizeof(_header))
throw std::runtime_error(err_msg);
throw malformed_packet();
std::memcpy(&_header, buffer, sizeof(_header));
buffer += sizeof(_header);
total_sz -= sizeof(_header);
const uint8_t *end = buffer + total_sz;
while(buffer < end) {
if(buffer + sizeof(uint32_t) * 2 > end)
throw std::runtime_error(err_msg);
throw malformed_packet();
uint16_t opt_type = *(const uint16_t*)buffer;
uint16_t opt_len = *(const uint16_t*)(buffer + sizeof(uint16_t));
buffer += sizeof(uint16_t) * 2;
total_sz -= sizeof(uint16_t) * 2;
if(Endian::be_to_host(opt_len) > total_sz)
throw std::runtime_error(err_msg);
throw malformed_packet();
add_tag(
tag(
static_cast<TagTypes>(opt_type),