368 lines
9.1 KiB
C
368 lines
9.1 KiB
C
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/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include "sysdeps.h"
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#define TRACE_TAG TRACE_ADB
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#include "adb.h"
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#include "file_sync_service.h"
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#if ADB_HOST
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# ifndef HAVE_WINSOCK
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# include <netinet/in.h>
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# include <netdb.h>
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# endif
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#endif
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typedef struct stinfo stinfo;
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struct stinfo {
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void (*func)(int fd, void *cookie);
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int fd;
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void *cookie;
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};
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void *service_bootstrap_func(void *x)
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{
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stinfo *sti = x;
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sti->func(sti->fd, sti->cookie);
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free(sti);
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return 0;
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}
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#if ADB_HOST
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ADB_MUTEX_DEFINE( dns_lock );
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static void dns_service(int fd, void *cookie)
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{
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char *hostname = cookie;
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struct hostent *hp;
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unsigned zero = 0;
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adb_mutex_lock(&dns_lock);
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hp = gethostbyname(hostname);
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if(hp == 0) {
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writex(fd, &zero, 4);
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} else {
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writex(fd, hp->h_addr, 4);
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}
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adb_mutex_unlock(&dns_lock);
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adb_close(fd);
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}
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#else
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extern int recovery_mode;
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static void recover_service(int s, void *cookie)
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{
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unsigned char buf[4096];
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unsigned count = (unsigned) cookie;
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int fd;
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fd = adb_creat("/tmp/update", 0644);
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if(fd < 0) {
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adb_close(s);
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return;
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}
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while(count > 0) {
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unsigned xfer = (count > 4096) ? 4096 : count;
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if(readx(s, buf, xfer)) break;
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if(writex(fd, buf, xfer)) break;
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count -= xfer;
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}
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if(count == 0) {
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writex(s, "OKAY", 4);
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} else {
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writex(s, "FAIL", 4);
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}
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adb_close(fd);
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adb_close(s);
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fd = adb_creat("/tmp/update.begin", 0644);
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adb_close(fd);
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}
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#endif
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#if 0
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static void echo_service(int fd, void *cookie)
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{
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char buf[4096];
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int r;
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char *p;
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int c;
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for(;;) {
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r = read(fd, buf, 4096);
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if(r == 0) goto done;
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if(r < 0) {
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if(errno == EINTR) continue;
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else goto done;
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}
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c = r;
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p = buf;
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while(c > 0) {
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r = write(fd, p, c);
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if(r > 0) {
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c -= r;
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p += r;
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continue;
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}
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if((r < 0) && (errno == EINTR)) continue;
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goto done;
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}
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}
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done:
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close(fd);
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}
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#endif
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static int create_service_thread(void (*func)(int, void *), void *cookie)
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{
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stinfo *sti;
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adb_thread_t t;
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int s[2];
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if(adb_socketpair(s)) {
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printf("cannot create service socket pair\n");
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return -1;
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}
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sti = malloc(sizeof(stinfo));
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if(sti == 0) fatal("cannot allocate stinfo");
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sti->func = func;
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sti->cookie = cookie;
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sti->fd = s[1];
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if(adb_thread_create( &t, service_bootstrap_func, sti)){
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free(sti);
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adb_close(s[0]);
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adb_close(s[1]);
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printf("cannot create service thread\n");
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return -1;
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}
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D("service thread started, %d:%d\n",s[0], s[1]);
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return s[0];
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}
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static int create_subprocess(const char *cmd, const char *arg0, const char *arg1)
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{
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#ifdef HAVE_WIN32_PROC
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fprintf(stderr, "error: create_subprocess not implemented on Win32 (%s %s %s)\n", cmd, arg0, arg1);
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return -1;
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#else /* !HAVE_WIN32_PROC */
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char *devname;
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int ptm;
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pid_t pid;
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ptm = unix_open("/dev/ptmx", O_RDWR); // | O_NOCTTY);
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if(ptm < 0){
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printf("[ cannot open /dev/ptmx - %s ]\n",strerror(errno));
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return -1;
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}
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fcntl(ptm, F_SETFD, FD_CLOEXEC);
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if(grantpt(ptm) || unlockpt(ptm) ||
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((devname = (char*) ptsname(ptm)) == 0)){
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printf("[ trouble with /dev/ptmx - %s ]\n", strerror(errno));
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return -1;
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}
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pid = fork();
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if(pid < 0) {
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printf("- fork failed: %s -\n", strerror(errno));
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return -1;
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}
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if(pid == 0){
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int pts;
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setsid();
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pts = unix_open(devname, O_RDWR);
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if(pts < 0) exit(-1);
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dup2(pts, 0);
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dup2(pts, 1);
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dup2(pts, 2);
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adb_close(ptm);
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execl(cmd, cmd, arg0, arg1, NULL);
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fprintf(stderr, "- exec '%s' failed: %s (%d) -\n",
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cmd, strerror(errno), errno);
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exit(-1);
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} else {
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return ptm;
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}
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#endif /* !HAVE_WIN32_PROC */
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}
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#if ADB_HOST
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#define SHELL_COMMAND "/bin/sh"
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#else
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#define SHELL_COMMAND "/system/bin/sh"
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#endif
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int service_to_fd(const char *name)
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{
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int ret = -1;
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if(!strncmp(name, "tcp:", 4)) {
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int port = atoi(name + 4);
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name = strchr(name + 4, ':');
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if(name == 0) {
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ret = socket_loopback_client(port, SOCK_STREAM);
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if (ret >= 0)
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disable_tcp_nagle(ret);
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} else {
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#if ADB_HOST
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adb_mutex_lock(&dns_lock);
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ret = socket_network_client(name + 1, port, SOCK_STREAM);
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adb_mutex_unlock(&dns_lock);
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#else
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return -1;
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#endif
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}
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#ifndef HAVE_WINSOCK /* winsock doesn't implement unix domain sockets */
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} else if(!strncmp(name, "local:", 6)) {
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ret = socket_local_client(name + 6,
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ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM);
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} else if(!strncmp(name, "localreserved:", 14)) {
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ret = socket_local_client(name + 14,
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ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM);
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} else if(!strncmp(name, "localabstract:", 14)) {
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ret = socket_local_client(name + 14,
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ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
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} else if(!strncmp(name, "localfilesystem:", 16)) {
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ret = socket_local_client(name + 16,
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ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM);
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#endif
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#if ADB_HOST
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} else if(!strncmp("dns:", name, 4)){
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char *n = strdup(name + 4);
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if(n == 0) return -1;
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ret = create_service_thread(dns_service, n);
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#else /* !ADB_HOST */
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} else if(!strncmp("dev:", name, 4)) {
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ret = unix_open(name + 4, O_RDWR);
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} else if(!strncmp(name, "framebuffer:", 12)) {
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ret = create_service_thread(framebuffer_service, 0);
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} else if(recovery_mode && !strncmp(name, "recover:", 8)) {
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ret = create_service_thread(recover_service, (void*) atoi(name + 8));
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} else if (!strncmp(name, "jdwp:", 5)) {
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ret = create_jdwp_connection_fd(atoi(name+5));
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} else if (!strncmp(name, "log:", 4)) {
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ret = create_service_thread(log_service, get_log_file_path(name + 4));
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#endif
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} else if(!HOST && !strncmp(name, "shell:", 6)) {
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if(name[6]) {
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ret = create_subprocess(SHELL_COMMAND, "-c", name + 6);
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} else {
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ret = create_subprocess(SHELL_COMMAND, "-", 0);
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}
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#if !ADB_HOST
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} else if(!strncmp(name, "sync:", 5)) {
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ret = create_service_thread(file_sync_service, NULL);
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} else if(!strncmp(name, "remount:", 8)) {
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ret = create_service_thread(remount_service, NULL);
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#endif
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#if 0
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} else if(!strncmp(name, "echo:", 5)){
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ret = create_service_thread(echo_service, 0);
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#endif
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}
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if (ret >= 0) {
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close_on_exec(ret);
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}
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return ret;
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}
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#if ADB_HOST
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struct state_info {
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transport_type transport;
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char* serial;
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int state;
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};
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static void wait_for_state(int fd, void* cookie)
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{
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struct state_info* sinfo = cookie;
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char* err = "unknown error";
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D("wait_for_state %d\n", sinfo->state);
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atransport *t = acquire_one_transport(sinfo->state, sinfo->transport, sinfo->serial, &err);
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if(t != 0) {
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writex(fd, "OKAY", 4);
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} else {
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sendfailmsg(fd, err);
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}
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if (sinfo->serial)
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free(sinfo->serial);
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free(sinfo);
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adb_close(fd);
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D("wait_for_state is done\n");
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}
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#endif
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#if ADB_HOST
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asocket* host_service_to_socket(const char* name, const char *serial)
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{
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if (!strcmp(name,"track-devices")) {
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return create_device_tracker();
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} else if (!strncmp(name, "wait-for-", strlen("wait-for-"))) {
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struct state_info* sinfo = malloc(sizeof(struct state_info));
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if (serial)
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sinfo->serial = strdup(serial);
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else
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sinfo->serial = NULL;
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name += strlen("wait-for-");
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if (!strncmp(name, "local", strlen("local"))) {
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sinfo->transport = kTransportLocal;
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sinfo->state = CS_DEVICE;
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} else if (!strncmp(name, "usb", strlen("usb"))) {
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sinfo->transport = kTransportUsb;
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sinfo->state = CS_DEVICE;
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} else if (!strncmp(name, "any", strlen("any"))) {
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sinfo->transport = kTransportAny;
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sinfo->state = CS_DEVICE;
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} else {
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free(sinfo);
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return NULL;
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}
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int fd = create_service_thread(wait_for_state, sinfo);
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return create_local_socket(fd);
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}
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return NULL;
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}
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#endif /* ADB_HOST */
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