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226 | // Copyright (C) 2023-2024 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Kea Hooks Basic
// Commercial End User License Agreement v2.0. See COPYING file in the premium/
// directory.
#include <config.h>
#include <asiolink/io_address.h>
#include <cryptolink/crypto_rng.h>
#include <util/multi_threading_mgr.h>
#include <client_server.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <radius_log.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <sys/types.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <sys/socket.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <netinet/in.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <netdb.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <cerrno><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <chrono><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <limits><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <sstream><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
using namespace isc;
using namespace isc::asiolink;
using namespace isc::data;
using namespace isc::util;
using namespace std;
using namespace std::chrono;
namespace ph = std::placeholders;
/// @brief RAII wrapper over struct addrinfo.
struct AddrInfo {
AddrInfo(string const& hostname) : addrinfo_(0) {<--- Struct 'AddrInfo' has a constructor with 1 argument that is not explicit. [+]Struct 'AddrInfo' has a constructor with 1 argument that is not explicit. Such, so called "Converting constructors", should in general be explicit for type safety reasons as that prevents unintended implicit conversions.
int const err(getaddrinfo(hostname.c_str(), 0, 0, &addrinfo_));
if (err != 0) {
string const errmsg(gai_strerror(err));
isc_throw(BadValue, "failed to resolve '" << hostname << "': " << errmsg);
}
if (!addrinfo_ || !addrinfo_->ai_addr) {
isc_throw(BadValue, "getaddrinfo('" << hostname << ") returned null");
}
}
~AddrInfo() {
freeaddrinfo(addrinfo_);
}
struct addrinfo *addrinfo_;
};
namespace isc {
namespace radius {
IOAddress
Server::getAddress(const string& name) {
AddrInfo res(name);
short family = res.addrinfo_->ai_family;
if (family == AF_INET) {
struct sockaddr_in* sin4 =
reinterpret_cast<struct sockaddr_in*>(res.addrinfo_->ai_addr);
vector<uint8_t> in4(4);
memmove(&in4[0], &sin4->sin_addr, 4);
return (IOAddress::fromBytes(AF_INET, &in4[0]));
} else if (family == AF_INET6) {
struct sockaddr_in6* sin6 =
reinterpret_cast<struct sockaddr_in6*>(res.addrinfo_->ai_addr);
vector<uint8_t> in6(16);
memmove(&in6[0], &sin6->sin6_addr, 16);
return (IOAddress::fromBytes(AF_INET6, &in6[0]));
}
isc_throw(BadValue, "getaddrinfo('" << name << ") returned unknown family "
<< family);
}
IOAddress
Server::getSrcAddress(const IOAddress& dest) {
vector<uint8_t> bindest = dest.toBytes();
vector<uint8_t> binsrc(bindest.size());
if (bindest.size() == 4) {
struct sockaddr_in dest4;
socklen_t len = sizeof(dest4);
memset(&dest4, 0, len);
dest4.sin_family = AF_INET;
#ifdef HAVE_SA_LEN
dest4.sin_len = len;
#endif
memmove(&dest4.sin_addr, &bindest[0], 4);
dest4.sin_port = htons(11812);
int fd = socket(PF_INET, SOCK_DGRAM, 0);
if (fd < 0) {
isc_throw(Unexpected, "socket() failed: " << strerror(errno));
}
int err = connect(fd, reinterpret_cast<const struct sockaddr*>(&dest4),
len);
if (err < 0) {
static_cast<void>(close(fd));
isc_throw(Unexpected, "connect() failed: " << strerror(errno));
}
struct sockaddr_in src4;
memset(&src4, 0, len);
err = getsockname(fd, reinterpret_cast<struct sockaddr*>(&src4), &len);
static_cast<void>(close(fd));
if ((err < 0) || (len != sizeof(src4))) {
isc_throw(Unexpected, "getsockname() failed: " << strerror(errno));
}
memmove(&binsrc[0], &src4.sin_addr, 4);
return (IOAddress::fromBytes(AF_INET, &binsrc[0]));
} else if (bindest.size() == 16) {
struct sockaddr_in6 dest6;
socklen_t len = sizeof(dest6);
memset(&dest6, 0, len);
dest6.sin6_family = AF_INET6;
#ifdef HAVE_SA_LEN
dest6.sin6_len = len;
#endif
memmove(&dest6.sin6_addr, &bindest[0], 16);
dest6.sin6_port = htons(11812);
int fd = socket(PF_INET6, SOCK_DGRAM, 0);
if (fd < 0) {
isc_throw(Unexpected, "socket() failed: " << strerror(errno));
}
int err = connect(fd, reinterpret_cast<const struct sockaddr*>(&dest6),
len);
if (err < 0) {
static_cast<void>(close(fd));
isc_throw(Unexpected, "connect() failed: " << strerror(errno));
}
struct sockaddr_in6 src6;
memset(&src6, 0, len);
err = getsockname(fd, reinterpret_cast<struct sockaddr*>(&src6), &len);
static_cast<void>(close(fd));
if ((err < 0) || (len != sizeof(src6))) {
isc_throw(Unexpected, "getsockname() failed: " << strerror(errno));
}
memmove(&binsrc[0], &src6.sin6_addr, 16);
return (IOAddress::fromBytes(AF_INET6, &binsrc[0]));
} else {
isc_throw(Unexpected, "address length is not 4 nor 16: "
<< bindest.size());
}
}
Server::~Server() {
if (!secret_.empty()) {
memset(&secret_[0], 0, secret_.size());
}
secret_.clear();
}
void
Server::setLocalAddress(const IOAddress& local_addr) {
if (peer_addr_.getFamily() != local_addr.getFamily()) {
isc_throw(BadValue, "address family mismatch: peer "
<< peer_addr_.toText() << ", local " << local_addr.toText());
}
local_addr_ = local_addr;
}
void
Server::setTimeout(unsigned timeout) {
if (static_cast<uint64_t>(timeout) > numeric_limits<long>::max() / 1000) {
isc_throw(OutOfRange, "too large timeout " << timeout
<< " > " << std::numeric_limits<long>::max() / 1000);
}
timeout_ = (timeout == 0 ? 1 : timeout);
}
void
Server::setSecret(const string& secret) {
if (secret.empty()) {
isc_throw(BadValue, "empty secret");
}
secret_ = secret;
}
steady_clock::time_point
Server::getDeadtimeEnd() const {
MultiThreadingLock lock(*mutex_);<--- Variable 'lock' is assigned a value that is never used.
return (deadtime_end_);
}
void
Server::setDeadtimeEnd(const steady_clock::time_point& deadtime_end) {
MultiThreadingLock lock(*mutex_);<--- Variable 'lock' is assigned a value that is never used.
deadtime_end_ = deadtime_end;
}
ElementPtr
Server::toElement() const {
ElementPtr result = Element::createMap();
// Peer address.
result->set("peer-address", Element::create(peer_addr_.toText()));
// Port.
result->set("peer-port", Element::create(peer_port_));
// Local address.
result->set("local-address", Element::create(local_addr_.toText()));
// Secret.
result->set("secret", Element::create(secret_));
// Timeout.
result->set("timeout", Element::create(static_cast<long long>(timeout_)));
// Deadtime.
result->set("deadtime", Element::create(static_cast<long long>(deadtime_)));
if (deadtime_ != 0) {
MultiThreadingLock lock(*mutex_);<--- Variable 'lock' is assigned a value that is never used.
auto delta = deadtime_end_ - steady_clock().now();
seconds secs = duration_cast<seconds>(delta);
result->set("deadtime-end",
Element::create(static_cast<long long>(secs.count())));
}
return (result);
}
} // end of namespace isc::radius
} // end of namespace isc
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