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Code Issues Releases Wiki Activity

Added some helper functions to IEEE802_11_Beacon.

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This commit is contained in:
Matias Fontanini
2011-08-22 22:59:38 -03:00
parent 3aaa895321
commit e4413d3aef
2 changed files with 40 additions and 6 deletions
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19
include/ieee802-11.h
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@@ -613,6 +613,24 @@ namespace Tins {
*/
IEEE802_11_Beacon();
/**
* \brief Helper method to set the essid.
* \param new_essid The essid to be set.
*/
void essid(const std::string &new_essid);
/**
* \brief Helper method to set the supported rates.
* \param new_rates A list of rates to be set.
*/
void rates(const std::list<float> &new_rates);
/**
* \brief Helper method to set the current channel.
* \param new_channel The new channel to be set.
*/
void channel(uint8_t new_channel);
/**
* \brief Returns the frame's header length.
*
@@ -620,7 +638,6 @@ namespace Tins {
* \sa PDU::header_size()
*/
uint32_t header_size() const;
private:
struct BeaconBody {

27
src/ieee802-11.cpp
View File

@@ -22,7 +22,6 @@
#include <cassert>
#include <cstring>
#include <stdexcept>
#include <iostream> //borrame
#ifndef WIN32
#include <net/ethernet.h>
#include <netpacket/packet.h>
@@ -185,7 +184,6 @@ bool Tins::IEEE802_11::send(PacketSender* sender) {
void Tins::IEEE802_11::write_serialization(uint8_t *buffer, uint32_t total_sz, const PDU *parent) {
uint32_t my_sz = header_size();
assert(total_sz >= my_sz);
memcpy(buffer, &this->_header, sizeof(ieee80211_header));
buffer += sizeof(ieee80211_header);
if (this->to_ds() && this->from_ds()) {
@@ -196,12 +194,10 @@ void Tins::IEEE802_11::write_serialization(uint8_t *buffer, uint32_t total_sz, c
uint32_t child_len = write_fixed_parameters(buffer, total_sz - sizeof(ieee80211_header) - _options_size);
buffer += child_len;
cout << "Child len: " << child_len << "\n";
assert(total_sz > child_len + _options_size);
for(std::list<IEEE802_11_Option>::const_iterator it = _options.begin(); it != _options.end(); ++it) {
*(buffer++) = it->option;
*(buffer++) = it->length;
cout << "Length: " << (int)it->length << "\n";
cout << "Value: " << it->value << "\n";
std::memcpy(buffer, it->value, it->length);
buffer += it->length;
}
@@ -217,6 +213,27 @@ Tins::ManagementFrame::ManagementFrame() : IEEE802_11() {
Tins::IEEE802_11_Beacon::IEEE802_11_Beacon() : ManagementFrame() {
this->subtype(IEEE802_11::BEACON);
memset(&_body, 0, sizeof(_body));
}
void Tins::IEEE802_11_Beacon::essid(const std::string &new_essid) {
add_tagged_option(IEEE802_11::SSID, new_essid.size(), (const uint8_t*)new_essid.c_str());
}
void Tins::IEEE802_11_Beacon::rates(const std::list<float> &new_rates) {
uint8_t *buffer = new uint8_t[new_rates.size()], *ptr = buffer;
for(std::list<float>::const_iterator it = new_rates.begin(); it != new_rates.end(); ++it) {
uint8_t result = 0x80, left = *it / 0.5;
if(*it - left > 0) //arbitrary value
left++;
*(ptr++) = (result | left);
}
add_tagged_option(SUPPORTED_RATES, new_rates.size(), buffer);
delete[] buffer;
}
void Tins::IEEE802_11_Beacon::channel(uint8_t new_channel) {
add_tagged_option(DS_SET, 1, &new_channel);
}
uint32_t Tins::IEEE802_11_Beacon::header_size() const {