PacketInfo* parse(char* buf, int len) {
cout << "parselib " << PROTO << endl;
PacketInfo *pi = new PacketInfo;
//ieee80211_radiotap_header *rtap_header = new ieee80211_radiotap_header;
INSERT_TAG("version", 1, 0);
INSERT_TAG("hdr_len", 2, 2);
INSERT_TAG("presence", 4, 4);
uint data_offset = (uint)TAG("hdr_len");
if (checkPresence(0, pi)) {
// TSFT
INSERT_TAG("tsft", 8, data_offset);
data_offset += 8;
}
if (checkPresence(1, pi)) {
// flags
INSERT_TAG("flags", 1, data_offset);
data_offset++;
}
if (checkPresence(2, pi)) {
// Rate
INSERT_TAG("rate", 1, data_offset);
data_offset++;
}
if (checkPresence(3, pi)) {
// Channel
INSERT_TAG("channel.freq", 2, data_offset);
INSERT_TAG("channel.flags", 2, data_offset+2);
data_offset+=4;
}
if (checkPresence(4, pi)) {
// FHSS
INSERT_TAG("fhss.set", 1, data_offset);
INSERT_TAG("fhss.pattern", 1, data_offset+1);
data_offset+=2;
}
if (checkPresence(5, pi)) {
// Antenna signal
INSERT_TAG("ant_signal", 1, data_offset);
data_offset++;
}
if (checkPresence(6, pi)) {
// Antenna noise
INSERT_TAG("ant_noise", 1, data_offset);
data_offset++;
}
if (checkPresence(7, pi)) {
// Lock quality
INSERT_TAG("lock_quality", 2, data_offset);
data_offset += 2;
}
if (checkPresence(8, pi)) {
// TX attenuation
INSERT_TAG("tx_att", 2, data_offset);
data_offset+=2;
}
if (checkPresence(9, pi)) {
// db TX attenuation
INSERT_TAG("tx_att_db", 2, data_offset);
data_offset+=2;
}
if (checkPresence(10, pi)) {
// dBm TX power
INSERT_TAG("tx_power", 1, data_offset);
data_offset++;
}
if (checkPresence(11, pi)) {
// Antenna
INSERT_TAG("antenna", 1, data_offset);
data_offset++;
}
if (checkPresence(12, pi)) {
// dB antenna signal
INSERT_TAG("ant_signal_db", 1, data_offset);
data_offset++;
}
if (checkPresence(13, pi)) {
// dB antenna noise
INSERT_TAG("ant_noise_db", 1, data_offset);
data_offset++;
}
if (checkPresence(14, pi)) {
// RX flags
INSERT_TAG("rx_flags", 2, data_offset);
data_offset +=2;
}
INSERT_TAG("data", len - data_offset, data_offset);
return pi;
};
std::string DylibSearch::resolve(std::string dylib, MachOObject* requester)
{
if (dylib.empty())
return std::string();
// expand @rpath, @executable_path and @loader_path
if (requester != nullptr && dylib[0] == '@')
{
if (dylib.compare(0, 16, "@executable_path") == 0)
{
MachOObject* mainModule = MachOMgr::instance()->mainModule();
if (!mainModule)
throw std::runtime_error("Cannot resolve @executable_path without a main module");
dylib.replace(0, 16, mainModule->directory());
}
else if (dylib.compare(0, 12, "@loader_path") == 0)
{
dylib.replace(0, 12, requester->directory());
}
else if (dylib.compare(0, 6, "@rpath") == 0)
{
return resolveViaRpath(dylib, requester);
}
}
// Search in configuration
if (const char* aliasTarget = resolveAlias(dylib))
{
std::string p;
if (!strchr(aliasTarget, '/'))
{
p = LIB_PATH;
p += '/';
p += aliasTarget;
// std::cout << p << std::endl;
}
return p;
}
// Search in extra paths
std::string epath;
epath = resolveInPathList(dylib, m_extraPaths);
if (!epath.empty())
return epath;
// Search in DYLD_LIBRARY_PATH
epath = resolveInLdPath(dylib);
if (!epath.empty())
return epath;
// Try the path as is
epath = checkPresence(dylib);
if (!epath.empty())
return epath;
// If absolute, search in sysroot
if (dylib[0] == '/')
{
const char* prefix = __prefix_get();
if (!MachOMgr::instance()->sysRoot().empty())
{
std::vector<std::string> roots = string_explode(MachOMgr::instance()->sysRoot(), ':');
for (const std::string& in_path : roots)
{
std::string path;
if (prefix != nullptr)
path = prefix;
path += in_path;
path += '/';
path += dylib;
epath = checkPresence(path);
if (!epath.empty())
return epath;
}
}
if (prefix != nullptr)
{
std::string path = prefix;
path += dylib;
epath = checkPresence(path);
if (!epath.empty())
return epath;
}
}
/*if (MachOMgr::instance()->ignoreMissingDependencies())
{
}*/
return std::string();
}
std::string DylibSearch::resolve(std::string dylib, MachOObject* requester)
{
if (dylib.empty())
return std::string();
// expand @rpath, @executable_path and @loader_path
if (requester != nullptr && dylib[0] == '@')
{
if (dylib.compare(0, 16, "@executable_path") == 0)
{
MachOObject* mainModule = MachOMgr::instance()->mainModule();
if (!mainModule)
throw std::runtime_error("Cannot resolve @executable_path without a main module");
dylib.replace(0, 16, mainModule->directory());
}
else if (dylib.compare(0, 12, "@loader_path") == 0)
{
dylib.replace(0, 12, requester->directory());
}
else if (dylib.compare(0, 6, "@rpath") == 0)
{
return resolveViaRpath(dylib, requester);
}
}
// Search in configuration
if (const char* aliasTarget = resolveAlias(dylib))
return aliasTarget;
// Search in extra paths
std::string epath;
epath = resolveInPathList(dylib, m_extraPaths);
if (!epath.empty())
return epath;
// Search in DYLD_LIBRARY_PATH
epath = resolveInLdPath(dylib);
if (!epath.empty())
return epath;
// Try the path as is
epath = checkPresence(dylib);
if (!epath.empty())
return epath;
// If absolute, search in sysroot
if (dylib[0] == '/' && !MachOMgr::instance()->sysRoot().empty())
{
std::string path = MachOMgr::instance()->sysRoot();
path += '/';
path += dylib;
epath = checkPresence(path);
if (!epath.empty())
return epath;
}
return std::string();
}
