chiark / gitweb /
libsystemd-dhcp: Use be32_t for IP addresses in network order.
[elogind.git] / src / libsystemd-dhcp / test-dhcp-client.c
index d097c7d..d398510 100644 (file)
 #include <assert.h>
 #include <errno.h>
 #include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "util.h"
+#include "socket-util.h"
 
 #include "dhcp-protocol.h"
+#include "dhcp-internal.h"
 #include "sd-dhcp-client.h"
 
-static void test_request_basic(void)
+static struct ether_addr mac_addr = {
+        .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
+};
+
+static int test_fd[2];
+
+static void test_request_basic(sd_event *e)
 {
         sd_dhcp_client *client;
 
-        client = sd_dhcp_client_new();
+        client = sd_dhcp_client_new(e);
 
         assert(client);
 
@@ -112,10 +125,100 @@ static void test_checksum(void)
         assert(client_checksum(&buf, 20) == *val);
 }
 
+static int check_options(uint8_t code, uint8_t len, const uint8_t *option,
+                void *user_data)
+{
+        return 0;
+}
+
+int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link,
+                                 const void *packet, size_t len)
+{
+        size_t size;
+        _cleanup_free_ DHCPPacket *discover;
+        uint16_t ip_check, udp_check;
+        int res;
+
+        assert(s >= 0);
+        assert(packet);
+
+        size = sizeof(DHCPPacket) + 4;
+        assert(len > size);
+
+        discover = memdup(packet, len);
+
+        assert(memcmp(discover->dhcp.chaddr,
+                      &mac_addr.ether_addr_octet, 6) == 0);
+        assert(discover->ip.ttl == IPDEFTTL);
+        assert(discover->ip.protocol == IPPROTO_UDP);
+        assert(discover->ip.saddr == INADDR_ANY);
+        assert(discover->ip.daddr == INADDR_BROADCAST);
+        assert(discover->udp.source == be16toh(DHCP_PORT_CLIENT));
+        assert(discover->udp.dest == be16toh(DHCP_PORT_SERVER));
+
+        ip_check = discover->ip.check;
+
+        discover->ip.ttl = 0;
+        discover->ip.check = discover->udp.len;
+
+        udp_check = ~client_checksum(&discover->ip.ttl, len - 8);
+        assert(udp_check == 0xffff);
+
+        discover->ip.ttl = IPDEFTTL;
+        discover->ip.check = ip_check;
+
+        ip_check = ~client_checksum(&discover->ip, sizeof(discover->ip));
+        assert(ip_check == 0xffff);
+
+        size = len - sizeof(struct iphdr) - sizeof(struct udphdr);
+
+        res = dhcp_option_parse(&discover->dhcp, size, check_options, NULL);
+        if (res < 0)
+                return res;
+
+        return 575;
+}
+
+int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link)
+{
+        if (socketpair(AF_UNIX, SOCK_STREAM, 0, test_fd) < 0)
+                return -errno;
+
+        return test_fd[0];
+}
+
+static void test_discover_message(sd_event *e)
+{
+        sd_dhcp_client *client;
+        int res;
+
+        client = sd_dhcp_client_new(e);
+        assert(client);
+
+        assert(sd_dhcp_client_set_index(client, 42) >= 0);
+        assert(sd_dhcp_client_set_mac(client, &mac_addr) >= 0);
+
+        assert(sd_dhcp_client_set_request_option(client, 248) >= 0);
+
+        res = sd_dhcp_client_start(client);
+
+        assert(res == 0 || res == -EINPROGRESS);
+
+        close(test_fd[0]);
+        close(test_fd[1]);
+}
+
 int main(int argc, char *argv[])
 {
-        test_request_basic();
+        sd_event *e;
+
+        assert(sd_event_new(&e) >= 0);
+
+        test_request_basic(e);
         test_checksum();
 
+        test_discover_message(e);
+        sd_event_run(e, (uint64_t) -1);
+
         return 0;
 }