2 * Copyright (C) 2008 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
23 #include <sys/types.h>
29 #define LOG_TAG "Netd"
31 #include "cutils/log.h"
33 #include "CommandListener.h"
34 #include "NetlinkManager.h"
35 #include "DnsProxyListener.h"
36 #include "MDnsSdListener.h"
38 static void coldboot(const char *path);
39 static void sigchld_handler(int sig);
40 static void blockSigpipe();
46 DnsProxyListener *dpl;
47 MDnsSdListener *mdnsl;
49 ALOGI("Netd 1.0 starting");
51 // signal(SIGCHLD, sigchld_handler);
54 if (!(nm = NetlinkManager::Instance())) {
55 ALOGE("Unable to create NetlinkManager");
59 cl = new CommandListener();
60 nm->setBroadcaster((SocketListener *) cl);
63 ALOGE("Unable to start NetlinkManager (%s)", strerror(errno));
67 // Set local DNS mode, to prevent bionic from proxying
68 // back to this service, recursively.
69 setenv("ANDROID_DNS_MODE", "local", 1);
70 dpl = new DnsProxyListener(CommandListener::sNetCtrl);
71 if (dpl->startListener()) {
72 ALOGE("Unable to start DnsProxyListener (%s)", strerror(errno));
76 mdnsl = new MDnsSdListener();
77 if (mdnsl->startListener()) {
78 ALOGE("Unable to start MDnsSdListener (%s)", strerror(errno));
82 * Now that we're up, we can respond to commands
84 if (cl->startListener()) {
85 ALOGE("Unable to start CommandListener (%s)", strerror(errno));
89 // Eventually we'll become the monitoring thread
94 ALOGI("Netd exiting");
98 static void do_coldboot(DIR *d, int lvl)
105 fd = openat(dfd, "uevent", O_WRONLY);
107 write(fd, "add\n", 4);
111 while((de = readdir(d))) {
114 if (de->d_name[0] == '.')
117 if (de->d_type != DT_DIR && lvl > 0)
120 fd = openat(dfd, de->d_name, O_RDONLY | O_DIRECTORY);
128 do_coldboot(d2, lvl + 1);
134 static void coldboot(const char *path)
136 DIR *d = opendir(path);
143 static void sigchld_handler(int sig) {
144 pid_t pid = wait(NULL);
145 ALOGD("Child process %d exited", pid);
148 static void blockSigpipe()
153 sigaddset(&mask, SIGPIPE);
154 if (sigprocmask(SIG_BLOCK, &mask, NULL) != 0)
155 ALOGW("WARNING: SIGPIPE not blocked\n");