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/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Function.h>
#include <AK/IPv4Address.h>
#include <net/if.h>
#include <netinet/in.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
static void test_invalid(int);
static void test_no_route(int);
static void test_valid(int);
static void test_send(int);
static void test(Function<void(int)> test_fn)
{
int fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (fd < 0) {
perror("socket");
return;
}
test_fn(fd);
// be a responsible boi
close(fd);
}
auto main() -> int
{
test(test_invalid);
test(test_valid);
test(test_no_route);
test(test_send);
}
void test_invalid(int fd)
{
// bind to an interface that does not exist
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
memcpy(buf, "foodev", 7);
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen) < 0) {
perror("setsockopt(SO_BINDTODEVICE) :: invalid (Should fail with ENODEV)");
puts("PASS invalid");
} else {
puts("FAIL invalid");
}
}
void test_valid(int fd)
{
// bind to an interface that exists
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
memcpy(buf, "loop0", 6);
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen) < 0) {
perror("setsockopt(SO_BINDTODEVICE) :: valid");
puts("FAIL valid");
} else {
puts("PASS valid");
}
}
void test_no_route(int fd)
{
// bind to an interface that cannot deliver
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
memcpy(buf, "loop0", 6);
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen) < 0) {
perror("setsockopt(SO_BINDTODEVICE) :: no_route");
puts("FAIL no_route");
return;
}
sockaddr_in sin;
memset(&sin, 0, sizeof(sin));
sin.sin_addr.s_addr = IPv4Address { 10, 0, 2, 15 }.to_u32();
sin.sin_port = 8080;
sin.sin_family = AF_INET;
if (bind(fd, (sockaddr*)&sin, sizeof(sin)) < 0) {
perror("bind() :: no_route");
puts("FAIL no_route");
return;
}
if (sendto(fd, "TEST", 4, 0, (sockaddr*)&sin, sizeof(sin)) < 0) {
perror("sendto() :: no_route (Should fail with EHOSTUNREACH)");
puts("PASS no_route");
} else
puts("FAIL no_route");
}
void test_send(int fd)
{
// bind to an interface that cannot deliver
char buf[IFNAMSIZ];
socklen_t buflen = IFNAMSIZ;
memcpy(buf, "e1k0", 5);
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, buflen) < 0) {
perror("setsockopt(SO_BINDTODEVICE) :: send");
puts("FAIL send");
return;
}
sockaddr_in sin;
memset(&sin, 0, sizeof(sin));
sin.sin_addr.s_addr = IPv4Address { 10, 0, 2, 15 }.to_u32();
sin.sin_port = 8080;
sin.sin_family = AF_INET;
if (bind(fd, (sockaddr*)&sin, sizeof(sin)) < 0) {
perror("bind() :: send");
puts("FAIL send");
return;
}
if (sendto(fd, "TEST", 4, 0, (sockaddr*)&sin, sizeof(sin)) < 0) {
perror("sendto() :: send");
puts("FAIL send");
return;
}
puts("PASS send");
}
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