Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
36 lines
952 B
C++
36 lines
952 B
C++
#include "utils.hpp"
|
|
#include <cstdint>
|
|
#include <stdexcept>
|
|
#include <sstream>
|
|
|
|
void permission_string_to_buffer(const std::string& in, vanetza::ByteBuffer& out)
|
|
{
|
|
if (in.size() / 8 != out.size() - 1 /* version */) {
|
|
std::stringstream ss;
|
|
ss << "Size mismatch, expected " << (out.size() - 1) << " bytes encoded with one bit per byte.";
|
|
throw std::runtime_error(ss.str());
|
|
}
|
|
|
|
uint8_t byte = 0;
|
|
int index = 0;
|
|
|
|
for (auto it = in.begin(); it < in.end(); ++it) {
|
|
byte <<= 1;
|
|
|
|
if (*it == '0') {
|
|
byte &= 0xFE; // clear last bit
|
|
} else if (*it == '1') {
|
|
byte |= 1; // set last bit
|
|
} else {
|
|
throw std::runtime_error("Unexpected character in permissions, expected only '0' and '1'.");
|
|
}
|
|
|
|
if ((index + 1) % 8 == 0) {
|
|
out.at(1 /* version */ + (index / 8)) = byte;
|
|
byte = 0;
|
|
}
|
|
|
|
++index;
|
|
}
|
|
}
|