/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright (C) 2013 Intel Corporation. All rights reserved. Copyright (C) 2014 Tom Gundersen systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <errno.h> #include "sd-event.h" #include "event-util.h" #include "sd-dhcp-server.h" #include "dhcp-server-internal.h" static void test_pool(struct in_addr *address, unsigned size, int ret) { _cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL; assert_se(sd_dhcp_server_new(&server, 1) >= 0); assert_se(sd_dhcp_server_configure_pool(server, address, 8, 0, size) == ret); } static int test_basic(sd_event *event) { _cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL; struct in_addr address_lo = { .s_addr = htonl(INADDR_LOOPBACK), }; struct in_addr address_any = { .s_addr = htonl(INADDR_ANY), }; int r; /* attach to loopback interface */ assert_se(sd_dhcp_server_new(&server, 1) >= 0); assert_se(server); assert_se(sd_dhcp_server_attach_event(server, event, 0) >= 0); assert_se(sd_dhcp_server_attach_event(server, event, 0) == -EBUSY); assert_se(sd_dhcp_server_get_event(server) == event); assert_se(sd_dhcp_server_detach_event(server) >= 0); assert_se(!sd_dhcp_server_get_event(server)); assert_se(sd_dhcp_server_attach_event(server, NULL, 0) >= 0); assert_se(sd_dhcp_server_attach_event(server, NULL, 0) == -EBUSY); assert_se(sd_dhcp_server_ref(server) == server); assert_se(!sd_dhcp_server_unref(server)); assert_se(sd_dhcp_server_start(server) == -EUNATCH); assert_se(sd_dhcp_server_configure_pool(server, &address_any, 28, 0, 0) == -EINVAL); assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 38, 0, 0) == -ERANGE); assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 8, 0, 0) >= 0); assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 8, 0, 0) == -EBUSY); test_pool(&address_any, 1, -EINVAL); test_pool(&address_lo, 1, 0); r = sd_dhcp_server_start(server); if (r == -EPERM) return EXIT_TEST_SKIP; assert_se(r >= 0); assert_se(sd_dhcp_server_start(server) == -EBUSY); assert_se(sd_dhcp_server_stop(server) >= 0); assert_se(sd_dhcp_server_stop(server) >= 0); assert_se(sd_dhcp_server_start(server) >= 0); return 0; } static void test_message_handler(void) { _cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL; struct { DHCPMessage message; struct { uint8_t code; uint8_t length; uint8_t type; } _packed_ option_type; struct { uint8_t code; uint8_t length; be32_t address; } _packed_ option_requested_ip; struct { uint8_t code; uint8_t length; be32_t address; } _packed_ option_server_id; struct { uint8_t code; uint8_t length; uint8_t id[7]; } _packed_ option_client_id; uint8_t end; } _packed_ test = { .message.op = BOOTREQUEST, .message.htype = ARPHRD_ETHER, .message.hlen = ETHER_ADDR_LEN, .message.xid = htobe32(0x12345678), .message.chaddr = { 'A', 'B', 'C', 'D', 'E', 'F' }, .option_type.code = DHCP_OPTION_MESSAGE_TYPE, .option_type.length = 1, .option_type.type = DHCP_DISCOVER, .end = DHCP_OPTION_END, }; struct in_addr address_lo = { .s_addr = htonl(INADDR_LOOPBACK), }; assert_se(sd_dhcp_server_new(&server, 1) >= 0); assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 8, 0, 0) >= 0); assert_se(sd_dhcp_server_attach_event(server, NULL, 0) >= 0); assert_se(sd_dhcp_server_start(server) >= 0); assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); test.end = 0; /* TODO, shouldn't this fail? */ assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); test.end = DHCP_OPTION_END; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); test.option_type.code = 0; test.option_type.length = 0; test.option_type.type = 0; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); test.option_type.code = DHCP_OPTION_MESSAGE_TYPE; test.option_type.length = 1; test.option_type.type = DHCP_DISCOVER; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); test.message.op = 0; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); test.message.op = BOOTREQUEST; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); test.message.htype = 0; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); test.message.htype = ARPHRD_ETHER; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); test.message.hlen = 0; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); test.message.hlen = ETHER_ADDR_LEN; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); test.option_type.type = DHCP_REQUEST; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); test.option_requested_ip.code = DHCP_OPTION_REQUESTED_IP_ADDRESS; test.option_requested_ip.length = 4; test.option_requested_ip.address = htobe32(0x12345678); assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_NAK); test.option_server_id.code = DHCP_OPTION_SERVER_IDENTIFIER; test.option_server_id.length = 4; test.option_server_id.address = htobe32(INADDR_LOOPBACK); test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); test.option_server_id.address = htobe32(0x12345678); test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); test.option_server_id.address = htobe32(INADDR_LOOPBACK); test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 4); assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); test.option_client_id.code = DHCP_OPTION_CLIENT_IDENTIFIER; test.option_client_id.length = 7; test.option_client_id.id[0] = 0x01; test.option_client_id.id[1] = 'A'; test.option_client_id.id[2] = 'B'; test.option_client_id.id[3] = 'C'; test.option_client_id.id[4] = 'D'; test.option_client_id.id[5] = 'E'; test.option_client_id.id[6] = 'F'; assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 30); assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); } static void test_client_id_hash(void) { DHCPClientId a = { .length = 4, }, b = { .length = 4, }; uint8_t hash_key[HASH_KEY_SIZE] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', }; a.data = (uint8_t*)strdup("abcd"); b.data = (uint8_t*)strdup("abcd"); assert_se(client_id_compare_func(&a, &b) == 0); assert_se(client_id_hash_func(&a, hash_key) == client_id_hash_func(&b, hash_key)); a.length = 3; assert_se(client_id_compare_func(&a, &b) != 0); a.length = 4; assert_se(client_id_compare_func(&a, &b) == 0); assert_se(client_id_hash_func(&a, hash_key) == client_id_hash_func(&b, hash_key)); b.length = 3; assert_se(client_id_compare_func(&a, &b) != 0); b.length = 4; assert_se(client_id_compare_func(&a, &b) == 0); assert_se(client_id_hash_func(&a, hash_key) == client_id_hash_func(&b, hash_key)); free(b.data); b.data = (uint8_t*)strdup("abce"); assert_se(client_id_compare_func(&a, &b) != 0); free(a.data); free(b.data); } int main(int argc, char *argv[]) { _cleanup_event_unref_ sd_event *e; int r; log_set_max_level(LOG_DEBUG); log_parse_environment(); log_open(); assert_se(sd_event_new(&e) >= 0); r = test_basic(e); if (r != 0) return r; test_message_handler(); test_client_id_hash(); return 0; }