1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright 2008, The Android Open Source Project 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * you may not use this file except in compliance with the License. 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * You may obtain a copy of the License at 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * See the License for the specific language governing permissions and 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * limitations under the License. 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* Utilities for managing the dhcpcd DHCP client daemon */ 18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdio.h> 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 21b93e5812faffd3b6c5fb349072413aace31918d8Olivier Bailly#include <string.h> 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <unistd.h> 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <arpa/inet.h> 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <netinet/in.h> 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <cutils/properties.h> 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 289363b7d5da7e17842432251384f8dc46902ac323Dmitry Shmidtstatic const char DAEMON_NAME[] = "dhcpcd"; 299363b7d5da7e17842432251384f8dc46902ac323Dmitry Shmidtstatic const char DAEMON_PROP_NAME[] = "init.svc.dhcpcd"; 309363b7d5da7e17842432251384f8dc46902ac323Dmitry Shmidtstatic const char HOSTNAME_PROP_NAME[] = "net.hostname"; 31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic const char DHCP_PROP_NAME_PREFIX[] = "dhcp"; 3262d6f7486323fd2bd27299940a28f3c6de73f65dDmitry Shmidtstatic const char DHCP_CONFIG_PATH[] = "/system/etc/dhcpcd/dhcpcd.conf"; 33b1723b68921512f26562384898b9600f8f11d25eIrfan Sheriffstatic const int NAP_TIME = 200; /* wait for 200ms at a time */ 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* when polling for property values */ 359d157870345fa18ee7e639a85f6bcc4afb50c648TK MUNstatic const char DAEMON_NAME_RENEW[] = "iprenew"; 36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic char errmsg[100]; 3789f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff/* interface length for dhcpcd daemon start (dhcpcd_<interface> as defined in init.rc file) 3889f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * or for filling up system properties dhcpcd.<interface>.ipaddress, dhcpcd.<interface>.dns1 3989f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * and other properties on a successful bind 4089f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff */ 4189f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff#define MAX_INTERFACE_LENGTH 25 4289f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff 4389f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff/* 4489f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * P2p interface names increase sequentially p2p-p2p0-1, p2p-p2p0-2.. after 4589f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * group formation. This does not work well with system properties which can quickly 4689f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * exhaust or for specifiying a dhcp start target in init which requires 4789f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * interface to be pre-defined in init.rc file. 4889f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * 4989f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff * This function returns a common string p2p for all p2p interfaces. 5089f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff */ 5189f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriffvoid get_p2p_interface_replacement(const char *interface, char *p2p_interface) { 5289f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff /* Use p2p for any interface starting with p2p. */ 5389f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff if (strncmp(interface, "p2p",3) == 0) { 5489f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff strncpy(p2p_interface, "p2p", MAX_INTERFACE_LENGTH); 5589f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff } else { 5689f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff strncpy(p2p_interface, interface, MAX_INTERFACE_LENGTH); 5789f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff } 5889f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff} 59dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Wait for a system property to be assigned a specified value. 62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * If desired_value is NULL, then just wait for the property to 63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * be created with any value. maxwait is the maximum amount of 64dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * time in seconds to wait before giving up. 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 66dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int wait_for_property(const char *name, const char *desired_value, int maxwait) 67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char value[PROPERTY_VALUE_MAX] = {'\0'}; 69b1723b68921512f26562384898b9600f8f11d25eIrfan Sheriff int maxnaps = (maxwait * 1000) / NAP_TIME; 70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 71dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (maxnaps < 1) { 72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project maxnaps = 1; 73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (maxnaps-- > 0) { 76b1723b68921512f26562384898b9600f8f11d25eIrfan Sheriff usleep(NAP_TIME * 1000); 77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (property_get(name, value, NULL)) { 78dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (desired_value == NULL || 79dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcmp(value, desired_value) == 0) { 80dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 81dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 82dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 83dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 84dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; /* failure */ 85dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 86dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 87faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwaltstatic int fill_ip_info(const char *interface, 88faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt char *ipaddr, 89faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt char *gateway, 90faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt uint32_t *prefixLength, 91fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt char *dns[], 92faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt char *server, 930fb8ec8e9a056cd219216b1f5724d289b50dc993Jeff Sharkey uint32_t *lease, 946ecbdca4c19bc6f8eb371dd2c7a85fac06e1854dRobert Greenwalt char *vendorInfo, 95be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt char *domain, 96be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt char *mtu) 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char prop_name[PROPERTY_KEY_MAX]; 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char prop_value[PROPERTY_VALUE_MAX]; 10089f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff /* Interface name after converting p2p0-p2p0-X to p2p to reuse system properties */ 10189f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char p2p_interface[MAX_INTERFACE_LENGTH]; 102fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt int x; 10389f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff 10489f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff get_p2p_interface_replacement(interface, p2p_interface); 105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 10689f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(prop_name, sizeof(prop_name), "%s.%s.ipaddress", DHCP_PROP_NAME_PREFIX, p2p_interface); 107faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt property_get(prop_name, ipaddr, NULL); 108faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt 10989f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(prop_name, sizeof(prop_name), "%s.%s.gateway", DHCP_PROP_NAME_PREFIX, p2p_interface); 110faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt property_get(prop_name, gateway, NULL); 111faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt 11289f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(prop_name, sizeof(prop_name), "%s.%s.server", DHCP_PROP_NAME_PREFIX, p2p_interface); 113bdaaec1ba0a7cf832ad7fe475a7c541ed9973e52Irfan Sheriff property_get(prop_name, server, NULL); 114bdaaec1ba0a7cf832ad7fe475a7c541ed9973e52Irfan Sheriff 115bdaaec1ba0a7cf832ad7fe475a7c541ed9973e52Irfan Sheriff //TODO: Handle IPv6 when we change system property usage 11694cecfc4a00237cfd08e4327a836c67104ff2e20Irfan Sheriff if (gateway[0] == '\0' || strncmp(gateway, "0.0.0.0", 7) == 0) { 117bdaaec1ba0a7cf832ad7fe475a7c541ed9973e52Irfan Sheriff //DHCP server is our best bet as gateway 118bdaaec1ba0a7cf832ad7fe475a7c541ed9973e52Irfan Sheriff strncpy(gateway, server, PROPERTY_VALUE_MAX); 119bdaaec1ba0a7cf832ad7fe475a7c541ed9973e52Irfan Sheriff } 120bdaaec1ba0a7cf832ad7fe475a7c541ed9973e52Irfan Sheriff 12189f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(prop_name, sizeof(prop_name), "%s.%s.mask", DHCP_PROP_NAME_PREFIX, p2p_interface); 122faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt if (property_get(prop_name, prop_value, NULL)) { 123faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt int p; 124faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt // this conversion is v4 only, but this dhcp client is v4 only anyway 125faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt in_addr_t mask = ntohl(inet_addr(prop_value)); 126faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt // Check netmask is a valid IP address. ntohl gives NONE response (all 1's) for 127faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt // non 255.255.255.255 inputs. if we get that value check if it is legit.. 128faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt if (mask == INADDR_NONE && strcmp(prop_value, "255.255.255.255") != 0) { 129faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt snprintf(errmsg, sizeof(errmsg), "DHCP gave invalid net mask %s", prop_value); 130faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt return -1; 131faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt } 132faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt for (p = 0; p < 32; p++) { 133faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt if (mask == 0) break; 134faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt // check for non-contiguous netmask, e.g., 255.254.255.0 135faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt if ((mask & 0x80000000) == 0) { 136faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt snprintf(errmsg, sizeof(errmsg), "DHCP gave invalid net mask %s", prop_value); 137faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt return -1; 138faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt } 139faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt mask = mask << 1; 140faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt } 141faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt *prefixLength = p; 142dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 143faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt 144fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt for (x=0; dns[x] != NULL; x++) { 145fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt snprintf(prop_name, sizeof(prop_name), "%s.%s.dns%d", DHCP_PROP_NAME_PREFIX, p2p_interface, x+1); 146fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt property_get(prop_name, dns[x], NULL); 147fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt } 148faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt 14989f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(prop_name, sizeof(prop_name), "%s.%s.leasetime", DHCP_PROP_NAME_PREFIX, p2p_interface); 150dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (property_get(prop_name, prop_value, NULL)) { 151dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *lease = atol(prop_value); 152dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1530fb8ec8e9a056cd219216b1f5724d289b50dc993Jeff Sharkey 15489f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(prop_name, sizeof(prop_name), "%s.%s.vendorInfo", DHCP_PROP_NAME_PREFIX, 15589f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface); 1560fb8ec8e9a056cd219216b1f5724d289b50dc993Jeff Sharkey property_get(prop_name, vendorInfo, NULL); 1570fb8ec8e9a056cd219216b1f5724d289b50dc993Jeff Sharkey 1586ecbdca4c19bc6f8eb371dd2c7a85fac06e1854dRobert Greenwalt snprintf(prop_name, sizeof(prop_name), "%s.%s.domain", DHCP_PROP_NAME_PREFIX, 1596ecbdca4c19bc6f8eb371dd2c7a85fac06e1854dRobert Greenwalt p2p_interface); 1606ecbdca4c19bc6f8eb371dd2c7a85fac06e1854dRobert Greenwalt property_get(prop_name, domain, NULL); 1616ecbdca4c19bc6f8eb371dd2c7a85fac06e1854dRobert Greenwalt 162be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt snprintf(prop_name, sizeof(prop_name), "%s.%s.mtu", DHCP_PROP_NAME_PREFIX, 163be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt p2p_interface); 164be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt property_get(prop_name, mtu, NULL); 165be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt 166faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt return 0; 167dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 168dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1698c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczakstatic const char *ipaddr_to_string(in_addr_t addr) 1708c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak{ 1718c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak struct in_addr in_addr; 1728c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak 1738c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak in_addr.s_addr = addr; 1748c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak return inet_ntoa(in_addr); 1758c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak} 1768c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak 177dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 178dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Start the dhcp client daemon, and wait for it to finish 179dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * configuring the interface. 18035c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * 18135c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * The device init.rc file needs a corresponding entry for this work. 18235c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * 18335c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * Example: 18462d6f7486323fd2bd27299940a28f3c6de73f65dDmitry Shmidt * service dhcpcd_<interface> /system/bin/dhcpcd -ABKL -f dhcpcd.conf 185dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 186dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint dhcp_do_request(const char *interface, 187faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt char *ipaddr, 188faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt char *gateway, 189faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt uint32_t *prefixLength, 190fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt char *dns[], 191faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt char *server, 1920fb8ec8e9a056cd219216b1f5724d289b50dc993Jeff Sharkey uint32_t *lease, 1936ecbdca4c19bc6f8eb371dd2c7a85fac06e1854dRobert Greenwalt char *vendorInfo, 194be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt char *domain, 195be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt char *mtu) 196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char result_prop_name[PROPERTY_KEY_MAX]; 1989d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char daemon_prop_name[PROPERTY_KEY_MAX]; 199dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char prop_value[PROPERTY_VALUE_MAX] = {'\0'}; 20062d6f7486323fd2bd27299940a28f3c6de73f65dDmitry Shmidt char daemon_cmd[PROPERTY_VALUE_MAX * 2 + sizeof(DHCP_CONFIG_PATH)]; 201dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *ctrl_prop = "ctl.start"; 202dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *desired_status = "running"; 20389f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff /* Interface name after converting p2p0-p2p0-X to p2p to reuse system properties */ 20489f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char p2p_interface[MAX_INTERFACE_LENGTH]; 205a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync 20689f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff get_p2p_interface_replacement(interface, p2p_interface); 207dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 208dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result", 209dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project DHCP_PROP_NAME_PREFIX, 21089f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface); 2119d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 2129d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s", 2139d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN DAEMON_PROP_NAME, 21489f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface); 2159d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 216dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Erase any previous setting of the dhcp result property */ 217dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project property_set(result_prop_name, ""); 218dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 219dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Start the daemon and wait until it's ready */ 2209363b7d5da7e17842432251384f8dc46902ac323Dmitry Shmidt if (property_get(HOSTNAME_PROP_NAME, prop_value, NULL) && (prop_value[0] != '\0')) 22162d6f7486323fd2bd27299940a28f3c6de73f65dDmitry Shmidt snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-f %s -h %s %s", DAEMON_NAME, 22262d6f7486323fd2bd27299940a28f3c6de73f65dDmitry Shmidt p2p_interface, DHCP_CONFIG_PATH, prop_value, interface); 2239363b7d5da7e17842432251384f8dc46902ac323Dmitry Shmidt else 22462d6f7486323fd2bd27299940a28f3c6de73f65dDmitry Shmidt snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-f %s %s", DAEMON_NAME, 225ba2ba5c011a3fb13cba538296b70888dd0fb129bMatt Gumbel p2p_interface, DHCP_CONFIG_PATH, interface); 2269363b7d5da7e17842432251384f8dc46902ac323Dmitry Shmidt memset(prop_value, '\0', PROPERTY_VALUE_MAX); 2279363b7d5da7e17842432251384f8dc46902ac323Dmitry Shmidt property_set(ctrl_prop, daemon_cmd); 2289d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN if (wait_for_property(daemon_prop_name, desired_status, 10) < 0) { 229dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for dhcpcd to start"); 230dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 231dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 232dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 233dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Wait for the daemon to return a result */ 234dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (wait_for_property(result_prop_name, NULL, 30) < 0) { 235dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for DHCP to finish"); 236dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 237dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 238dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 239dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!property_get(result_prop_name, prop_value, NULL)) { 240dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* shouldn't ever happen, given the success of wait_for_property() */ 241dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(errmsg, sizeof(errmsg), "%s", "DHCP result property was not set"); 242dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 243dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 244dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp(prop_value, "ok") == 0) { 2458c85a00db6da092ec3766facd49132fa4fc319a1Szymon Jakubczak char dns_prop_name[PROPERTY_KEY_MAX]; 246fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt if (fill_ip_info(interface, ipaddr, gateway, prefixLength, dns, 247be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt server, lease, vendorInfo, domain, mtu) == -1) { 248faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt return -1; 249faab26d542740f03cbe12e44f6af1f97e8e7c12eRobert Greenwalt } 250dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 251dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 252dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(errmsg, sizeof(errmsg), "DHCP result was %s", prop_value); 253dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 254dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 255dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 256dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/** 258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Stop the DHCP client daemon. 259dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 260dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint dhcp_stop(const char *interface) 261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char result_prop_name[PROPERTY_KEY_MAX]; 2639d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char daemon_prop_name[PROPERTY_KEY_MAX]; 2649d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char daemon_cmd[PROPERTY_VALUE_MAX * 2]; 265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *ctrl_prop = "ctl.stop"; 266dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *desired_status = "stopped"; 267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 26889f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char p2p_interface[MAX_INTERFACE_LENGTH]; 269a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync 27089f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff get_p2p_interface_replacement(interface, p2p_interface); 271a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync 272dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result", 273dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project DHCP_PROP_NAME_PREFIX, 27489f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface); 2759d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 2769d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s", 2779d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN DAEMON_PROP_NAME, 27889f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface); 2799d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 28089f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s", DAEMON_NAME, p2p_interface); 2819d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 282dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Stop the daemon and wait until it's reported to be stopped */ 2839d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN property_set(ctrl_prop, daemon_cmd); 2849d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN if (wait_for_property(daemon_prop_name, desired_status, 5) < 0) { 285dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 286dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 287dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project property_set(result_prop_name, "failed"); 288dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 289dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 290dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 291dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/** 292dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Release the current DHCP client lease. 293dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 294dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint dhcp_release_lease(const char *interface) 295dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 2969d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char daemon_prop_name[PROPERTY_KEY_MAX]; 2979d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char daemon_cmd[PROPERTY_VALUE_MAX * 2]; 298dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *ctrl_prop = "ctl.stop"; 299dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *desired_status = "stopped"; 300dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 30189f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char p2p_interface[MAX_INTERFACE_LENGTH]; 302a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync 30389f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff get_p2p_interface_replacement(interface, p2p_interface); 304a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync 3059d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s", 3069d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN DAEMON_PROP_NAME, 30789f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface); 3089d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 30989f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s", DAEMON_NAME, p2p_interface); 3109d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 311dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Stop the daemon and wait until it's reported to be stopped */ 3129d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN property_set(ctrl_prop, daemon_cmd); 3139d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN if (wait_for_property(daemon_prop_name, desired_status, 5) < 0) { 314dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 315dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 316dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 317dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 318dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 319dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectchar *dhcp_get_errmsg() { 320dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return errmsg; 321dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 3229d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 3239d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN/** 32435c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * The device init.rc file needs a corresponding entry. 32535c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * 32635c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * Example: 32735c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * service iprenew_<interface> /system/bin/dhcpcd -n 32835c28608bf3dc31bab8cd6c2579739643e0145d8Irfan Sheriff * 3299d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN */ 3309d157870345fa18ee7e639a85f6bcc4afb50c648TK MUNint dhcp_do_request_renew(const char *interface, 33189f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char *ipaddr, 33289f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char *gateway, 333ed21633a5e81f7bb9688da98bc9ea9b08b6bce20tk.mun uint32_t *prefixLength, 334fdd573188d08fbd3739aeda19ef0f2d03752db9fRobert Greenwalt char *dns[], 33589f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char *server, 3360fb8ec8e9a056cd219216b1f5724d289b50dc993Jeff Sharkey uint32_t *lease, 3376ecbdca4c19bc6f8eb371dd2c7a85fac06e1854dRobert Greenwalt char *vendorInfo, 338be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt char *domain, 339be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt char *mtu) 3409d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN{ 3419d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char result_prop_name[PROPERTY_KEY_MAX]; 3429d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char prop_value[PROPERTY_VALUE_MAX] = {'\0'}; 3439d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN char daemon_cmd[PROPERTY_VALUE_MAX * 2]; 3449d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN const char *ctrl_prop = "ctl.start"; 3459d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 34689f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff char p2p_interface[MAX_INTERFACE_LENGTH]; 347a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync 34889f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff get_p2p_interface_replacement(interface, p2p_interface); 349a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync 3509d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result", 3519d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN DHCP_PROP_NAME_PREFIX, 35289f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface); 3539d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 3549d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN /* Erase any previous setting of the dhcp result property */ 3559d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN property_set(result_prop_name, ""); 3569d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 3579d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN /* Start the renew daemon and wait until it's ready */ 358a329b4296cab06ea0b6e95065d8eabb82d3fd76drepo sync snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:%s", DAEMON_NAME_RENEW, 35989f58cf827ecac8e67f5bcdb1dc7a9ed43e69cefIrfan Sheriff p2p_interface, interface); 3609d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN memset(prop_value, '\0', PROPERTY_VALUE_MAX); 3619d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN property_set(ctrl_prop, daemon_cmd); 3629d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 3639d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN /* Wait for the daemon to return a result */ 3649d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN if (wait_for_property(result_prop_name, NULL, 30) < 0) { 3659d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for DHCP Renew to finish"); 3669d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN return -1; 3679d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN } 3689d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN 3699d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN if (!property_get(result_prop_name, prop_value, NULL)) { 3709d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN /* shouldn't ever happen, given the success of wait_for_property() */ 3719d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN snprintf(errmsg, sizeof(errmsg), "%s", "DHCP Renew result property was not set"); 3729d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN return -1; 3739d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN } 3749d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN if (strcmp(prop_value, "ok") == 0) { 3750a0a8768cbc9ce36d3c9a0cc712dc8c309811565Colin Cross return fill_ip_info(interface, ipaddr, gateway, prefixLength, dns, 376be06210c508d5878dcc7d185e5613f4c7e38dfe8Dmitry Shmidt server, lease, vendorInfo, domain, mtu); 3779d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN } else { 3789d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN snprintf(errmsg, sizeof(errmsg), "DHCP Renew result was %s", prop_value); 3799d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN return -1; 3809d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN } 3819d157870345fa18ee7e639a85f6bcc4afb50c648TK MUN} 382