static int get_fb_from_adb(struct fb *fb)
{
char buf[1024];
const struct fbinfo* fbinfo;
int bytes_read;
/* Init socket */
adb_fd = remote_socket("localhost", 5037);
if (adb_fd < 0) {
E("Failed to create socket, %s", strerror(errno));
return -1;
}
adb_write("host:transport-");
bytes_read = adb_read(buf, 1024);
if (bytes_read <= 0)
return -1;
adb_write("framebuffer:");
bytes_read = adb_read(buf, 1024);
if (bytes_read <= 0)
return -1;
/* Parse FB header. */
bytes_read = adb_read(buf, sizeof(struct fbinfo));
if (bytes_read <= 0 ||
(unsigned int)bytes_read < sizeof (struct fbinfo)) {
E("Failed to read the FB Info data!", strerror(errno));
return -1;
}
fbinfo = (struct fbinfo*) buf;
if (fbinfo->version != DDMS_RAWIMAGE_VERSION) {
E("Unsupported adb version.");
return -1;
}
/* Assemble struct fb */
memcpy(fb, &fbinfo->bpp, sizeof(struct fbinfo) - 4);
fb_dump(fb);
fb->data = malloc(fb->size);
if (!fb->data) return -1;
/* Read out the whole framebuffer */
bytes_read = 0;
while ((unsigned int)bytes_read < fb->size) {
int br = adb_read((char*)fb->data + bytes_read, fb->size - bytes_read);
if (br <= 0)
return -1;
bytes_read += br;
}
return 0;
}
bool WriteFdExactly(int fd, const void* buf, size_t len) {
const char* p = reinterpret_cast<const char*>(buf);
int r;
VLOG(RWX) << "writex: fd=" << fd << " len=" << len
<< " " << dump_hex(reinterpret_cast<const unsigned char*>(buf), len);
while (len > 0) {
r = adb_write(fd, p, len);
if (r == -1) {
D("writex: fd=%d error %d: %s", fd, errno, strerror(errno));
if (errno == EAGAIN) {
adb_sleep_ms(1); // just yield some cpu time
continue;
} else if (errno == EPIPE) {
D("writex: fd=%d disconnected", fd);
errno = 0;
return false;
} else {
return false;
}
} else {
len -= r;
p += r;
}
}
return true;
}
bool WriteFdExactly(int fd, const void* buf, size_t len) {
const char* p = reinterpret_cast<const char*>(buf);
int r;
#if ADB_TRACE
D("writex: fd=%d len=%d: ", fd, (int)len);
if (ADB_TRACING) {
dump_hex(reinterpret_cast<const unsigned char*>(buf), len);
}
#endif
while (len > 0) {
r = adb_write(fd, p, len);
if (r == -1) {
D("writex: fd=%d error %d: %s\n", fd, errno, strerror(errno));
if (errno == EAGAIN) {
adb_sleep_ms(1); // just yield some cpu time
continue;
} else if (errno == EPIPE) {
D("writex: fd=%d disconnected\n", fd);
errno = 0;
return false;
} else {
return false;
}
} else {
len -= r;
p += r;
}
}
return true;
}
int writex(int fd, const void *ptr, size_t len)
{
char *p = (char*) ptr;
int r;
#if ADB_TRACE_FORCE
D("writex: fd=%d len=%d: ", fd, (int)len);
dump_hex( ptr, len );
#endif
while(len > 0) {
r = adb_write(fd, p, len);
if(r > 0) {
len -= r;
p += r;
} else {
if (r < 0) {
D("writex: fd=%d error %d: %s\n", fd, errno, strerror(errno));
if (errno == EINTR)
continue;
} else {
D("writex: fd=%d disconnected\n", fd);
}
return -1;
}
}
return 0;
}
static int
write_packet(int fd, const char* name, apacket** ppacket)
{
char *p = (char*) ppacket; /* we really write the packet address */
int r, len = sizeof(ppacket);
char buff[8];
if (!name) {
snprintf(buff, sizeof buff, "fd=%d", fd);
name = buff;
}
#if ADB_TRACE_FORCE
// if (ADB_TRACING) {
dump_packet(name, "to remote", *ppacket);
// }
#endif
len = sizeof(ppacket);
while(len > 0) {
r = adb_write(fd, p, len);
if(r > 0) {
len -= r;
p += r;
} else {
D("%s: write_packet (fd=%d) error ret=%d errno=%d: %s\n", name, fd, r, errno, strerror(errno));
if((r < 0) && (errno == EINTR)) continue;
return -1;
}
}
return 0;
}
/* this is used by magic sockets to rig local sockets to
send the go-ahead message when they connect */
static void local_socket_ready_notify(asocket *s)
{
s->ready = local_socket_ready;
s->close = local_socket_close;
adb_write(s->fd, "OKAY", 4);
s->ready(s);
}
int writex(int fd, const void *ptr, size_t len)
{
char *p = (char*)ptr;
int r;
#if ADB_TRACE
D("writex: fd=%d len=%d: ", fd, (int)len);
dump_hex((const unsigned char *)ptr, len);
#endif
while (len > 0) {
r = adb_write(fd, p, len);
if (r > 0) {
len -= r;
p += r;
}
else {
if (r < 0) {
D("writex: fd=%d error %d: %s\n", fd, errno, strerror(errno));
if (errno == EINTR)
continue;
if (errno == EAGAIN) {
adb_sleep_ms(1); // just yield some cpu time
continue;
}
}
else {
D("writex: fd=%d disconnected\n", fd);
}
return -1;
}
}
return 0;
}
static void copy_to_file(int inFd, int outFd) {
const size_t BUFSIZE = 32 * 1024;
char* buf = (char*) malloc(BUFSIZE);
int len;
long total = 0;
D("copy_to_file(%d -> %d)\n", inFd, outFd);
for (;;) {
len = adb_read(inFd, buf, BUFSIZE);
if (len == 0) {
D("copy_to_file() : read 0 bytes; exiting\n");
break;
}
if (len < 0) {
if (errno == EINTR) {
D("copy_to_file() : EINTR, retrying\n");
continue;
}
D("copy_to_file() : error %d\n", errno);
break;
}
adb_write(outFd, buf, len);
total += len;
}
D("copy_to_file() finished after %lu bytes\n", total);
free(buf);
}
static void write_console(int fd, const char* format, ...)
{
char buffer[256];
va_list args;
va_start (args, format);
vsnprintf (buffer, sizeof(buffer), format, args);
va_end (args);
adb_write(fd, buffer, strnlen(buffer, sizeof(buffer)));
}
int adb_send_emulator_command(int argc, char **argv)
{
int fd, nn;
fd = connect_to_console();
if (fd < 0)
return 1;
#define QUIT "quit\n"
for (nn = 1; nn < argc; nn++) {
adb_write(fd, argv[nn], strlen(argv[nn]));
adb_write(fd, (nn == argc - 1) ? "\n" : " ", 1);
}
adb_write(fd, QUIT, sizeof(QUIT) - 1);
adb_close(fd);
return 0;
}
void adb_qemu_trace(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
char msg[1024];
if (adb_debug_qemu >= 0) {
vsnprintf(msg, sizeof(msg), fmt, args);
adb_write(adb_debug_qemu, msg, strlen(msg));
}
}
int adb_send_emulator_command(int argc, char** argv)
{
int fd, nn;
printf("function = %s, file = %s, line = %u \n", __FUNCTION__, __FILE__, __LINE__);
fd = connect_to_console();
if (fd < 0)
return 1;
#define QUIT "quit\n"
for (nn = 1; nn < argc; nn++) {
adb_write( fd, argv[nn], strlen(argv[nn]) );
adb_write( fd, (nn == argc-1) ? "\n" : " ", 1 );
}
adb_write( fd, QUIT, sizeof(QUIT)-1 );
adb_close(fd);
return 0;
}
static int local_socket_enqueue(asocket* s, apacket* p) {
D("LS(%d): enqueue %zu", s->id, p->len);
p->ptr = p->data;
/* if there is already data queue'd, we will receive
** events when it's time to write. just add this to
** the tail
*/
if (s->pkt_first) {
goto enqueue;
}
/* write as much as we can, until we
** would block or there is an error/eof
*/
while (p->len > 0) {
int r = adb_write(s->fd, p->ptr, p->len);
if (r > 0) {
p->len -= r;
p->ptr += r;
continue;
}
if ((r == 0) || (errno != EAGAIN)) {
D("LS(%d): not ready, errno=%d: %s", s->id, errno, strerror(errno));
put_apacket(p);
s->has_write_error = true;
s->close(s);
return 1; /* not ready (error) */
} else {
break;
}
}
if (p->len == 0) {
put_apacket(p);
return 0; /* ready for more data */
}
enqueue:
p->next = 0;
if (s->pkt_first) {
s->pkt_last->next = p;
} else {
s->pkt_first = p;
}
s->pkt_last = p;
/* make sure we are notified when we can drain the queue */
fdevent_add(&s->fde, FDE_WRITE);
return 1; /* not ready (backlog) */
}
static void *stdin_read_thread(void *x)
{
int fd, fdi;
unsigned char buf[1024];
int r, n;
int state = 0;
int *fds = (int*) x;
fd = fds[0];
fdi = fds[1];
free(fds);
for(;;) {
/* fdi is really the client's stdin, so use read, not adb_read here */
D("stdin_read_thread(): pre unix_read(fdi=%d,...)\n", fdi);
r = unix_read(fdi, buf, 1024);
D("stdin_read_thread(): post unix_read(fdi=%d,...)\n", fdi);
if(r == 0) break;
if(r < 0) {
if(errno == EINTR) continue;
break;
}
for(n = 0; n < r; n++){
switch(buf[n]) {
case '\n':
state = 1;
break;
case '\r':
state = 1;
break;
case '~':
if(state == 1) state++;
break;
case '.':
if(state == 2) {
fprintf(stderr,"\n* disconnect *\n");
#ifdef HAVE_TERMIO_H
stdin_raw_restore(fdi);
#endif
exit(0);
}
default:
state = 0;
}
}
r = adb_write(fd, buf, r);
if(r <= 0) {
break;
}
}
return 0;
}
static void init_subproc_child()
{
setsid();
// Set OOM score adjustment to prevent killing
int fd = adb_open("/proc/self/oom_score_adj", O_WRONLY | O_CLOEXEC);
if (fd >= 0) {
adb_write(fd, "0", 1);
adb_close(fd);
} else {
D("adb: unable to update oom_score_adj\n");
}
}
int usb_write(usb_handle *h, const void *data, int len)
{
int n;
D("about to write (fd=%d, len=%d)\n", h->fd, len);
n = adb_write(h->fd, data, len);
if(n != len) {
D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
h->fd, n, errno, strerror(errno));
return -1;
}
D("[ done fd=%d ]\n", h->fd);
return 0;
}
void
adbcmds(void)
{
char cmd;
unsigned rtcu, rtcl, dec, pdec, x;
int i, j;
unsigned char d[64];
cmd = skipbl();
switch (cmd) {
case 't':
for (;;) {
rtcl = get_rtcl();
rtcu = get_rtcu();
dec = get_dec();
printf("rtc u=%u l=%u dec=%x (%d = %d.%.7d)\n",
rtcu, rtcl, dec, pdec - dec, (pdec - dec) / 1000000000,
((pdec - dec) % 1000000000) / 100);
pdec = dec;
if (cmd == 'x')
break;
while (xmon_read(stdin, &cmd, 1) != 1)
;
}
break;
case 'r':
init_adb_log();
while (adb_bitwait(8, 0, 0, 0) == 0)
adb_readin();
break;
case 'w':
i = 0;
while (scanhex(&x))
d[i++] = x;
init_adb_log();
j = adb_write(d, i);
printf("sent %d bytes\n", j);
while (adb_bitwait(8, 0, 0, 0) == 0)
adb_readin();
break;
case 'l':
dump_adb_log();
break;
}
}
static int
transport_write_action(int fd, struct tmsg* m)
{
char *p = (char*)m;
int len = sizeof(*m);
int r;
while(len > 0) {
r = adb_write(fd, p, len);
if(r > 0) {
len -= r;
p += r;
} else {
D("transport_write_action: on fd %d: %s", fd, strerror(errno));
return -1;
}
}
return 0;
}
static int
write_packet(int fd, apacket** ppacket)
{
char *p = (char*) ppacket; /* we really write the packet address */
int r, len = sizeof(ppacket);
#if ADB_TRACE
if (ADB_TRACING)
{
unsigned command = (*ppacket)->msg.command;
int len = (*ppacket)->msg.data_length;
char cmd[5];
int n;
for (n = 0; n < 4; n++) {
int b = (command >> (n*8)) & 255;
if (b >= 32 && b < 127)
cmd[n] = (char)b;
else
cmd[n] = '.';
}
cmd[4] = 0;
D("write_packet: %d [%08x %s] %08x %08x (%d) ",
fd, command, cmd, (*ppacket)->msg.arg0, (*ppacket)->msg.arg1, len);
dump_hex((*ppacket)->data, len);
}
#endif
len = sizeof(ppacket);
while(len > 0) {
r = adb_write(fd, p, len);
if(r > 0) {
len -= r;
p += r;
} else {
D("write_packet: %d error %d %d\n", fd, r, errno);
if((r < 0) && (errno == EINTR)) continue;
return -1;
}
}
return 0;
}
static int sysfs_write(const char *node, const char *message)
{
int fd;
ssize_t to_write;
int ret = 0;
fd = adb_open(node, O_RDWR);
if (!fd) {
D("open '%s' failed: %s\n", node, strerror(errno));
return -1;
}
to_write = strlen(message);
if (adb_write(fd, message, to_write) != to_write) {
D("write '%s' failed: %s\n", node, strerror(errno));
ret = -1;
}
adb_close(fd);
return ret;
}
static int
transport_write_action(int fd, struct tmsg* m)
{
char *p = (char*)m;
int len = sizeof(*m);
int r;
while(len > 0) {
r = adb_write(fd, p, len);
if(r > 0) {
len -= r;
p += r;
} else {
if((r < 0) && (errno == EINTR)) continue;
D("transport_write_action: on fd %d, error %d: %s\n",
fd, errno, strerror(errno));
return -1;
}
}
return 0;
}
static int
write_packet(int fd, const char* name, apacket** ppacket)
{
char buff[8];
if (!name) {
snprintf(buff, sizeof buff, "fd=%d", fd);
name = buff;
}
VLOG(TRANSPORT) << dump_packet(name, "to remote", *ppacket);
char* p = reinterpret_cast<char*>(ppacket); /* we really write the packet address */
int len = sizeof(apacket*);
while(len > 0) {
int r = adb_write(fd, p, len);
if(r > 0) {
len -= r;
p += r;
} else {
D("%s: write_packet (fd=%d) error ret=%d: %s", name, fd, r, strerror(errno));
return -1;
}
}
return 0;
}
int writex(int fd, const void *ptr, size_t len)
{
char *p = (char*) ptr;
int r;
#if ADB_TRACE
D("writex: %d %p %d: ", fd, ptr, (int)len);
dump_hex( ptr, len );
#endif
while(len > 0) {
r = adb_write(fd, p, len);
if(r > 0) {
len -= r;
p += r;
} else {
D("writex: %d %d %s\n", fd, r, strerror(errno));
if((r < 0) && (errno == EINTR)) continue;
return -1;
}
}
D("writex: %d ok\n", fd);
return 0;
}
int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s)
{
atransport *transport = NULL;
if(!strcmp(service, "kill")) {
fprintf(stderr,"adb server killed by remote request\n");
fflush(stdout);
adb_write(reply_fd, "OKAY", 4);
usb_cleanup();
exit(0);
}
#if ADB_HOST
// "transport:" is used for switching transport with a specified serial number
// "transport-usb:" is used for switching transport to the only USB transport
// "transport-local:" is used for switching transport to the only local transport
// "transport-any:" is used for switching transport to the only transport
if (!strncmp(service, "transport", strlen("transport"))) {
char* error_string = "unknown failure";
transport_type type = kTransportAny;
if (!strncmp(service, "transport-usb", strlen("transport-usb"))) {
type = kTransportUsb;
} else if (!strncmp(service, "transport-local", strlen("transport-local"))) {
type = kTransportLocal;
} else if (!strncmp(service, "transport-any", strlen("transport-any"))) {
type = kTransportAny;
} else if (!strncmp(service, "transport:", strlen("transport:"))) {
service += strlen("transport:");
serial = service;
}
transport = acquire_one_transport(CS_ANY, type, serial, &error_string);
if (transport) {
s->transport = transport;
adb_write(reply_fd, "OKAY", 4);
} else {
sendfailmsg(reply_fd, error_string);
}
return 1;
}
// return a list of all connected devices
if (!strncmp(service, "devices", 7)) {
char buffer[4096];
int use_long = !strcmp(service+7, "-l");
if (use_long || service[7] == 0) {
memset(buffer, 0, sizeof(buffer));
D("Getting device list \n");
list_transports(buffer, sizeof(buffer), use_long);
D("Wrote device list \n");
send_msg_with_okay(reply_fd, buffer, strlen(buffer));
return 0;
}
}
// remove TCP transport
if (!strncmp(service, "disconnect:", 11)) {
char buffer[4096];
memset(buffer, 0, sizeof(buffer));
char* serial = service + 11;
if (serial[0] == 0) {
// disconnect from all TCP devices
unregister_all_tcp_transports();
} else {
char hostbuf[100];
// assume port 5555 if no port is specified
if (!strchr(serial, ':')) {
snprintf(hostbuf, sizeof(hostbuf) - 1, "%s:5555", serial);
serial = hostbuf;
}
atransport *t = find_transport(serial);
if (t) {
unregister_transport(t);
} else {
snprintf(buffer, sizeof(buffer), "No such device %s", serial);
}
}
send_msg_with_okay(reply_fd, buffer, strlen(buffer));
return 0;
}
// returns our value for ADB_SERVER_VERSION
if (!strcmp(service, "version")) {
char version[12];
snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION);
send_msg_with_okay(reply_fd, version, strlen(version));
return 0;
}
if(!strncmp(service,"get-serialno",strlen("get-serialno"))) {
char *out = "unknown";
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
if (transport && transport->serial) {
out = transport->serial;
}
send_msg_with_okay(reply_fd, out, strlen(out));
return 0;
}
if(!strncmp(service,"get-devpath",strlen("get-devpath"))) {
char *out = "unknown";
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
if (transport && transport->devpath) {
out = transport->devpath;
}
send_msg_with_okay(reply_fd, out, strlen(out));
return 0;
}
// indicates a new emulator instance has started
if (!strncmp(service,"emulator:",9)) {
int port = atoi(service+9);
local_connect(port);
/* we don't even need to send a reply */
return 0;
}
#endif // ADB_HOST
int ret = handle_forward_request(service, ttype, serial, reply_fd);
if (ret >= 0)
return ret - 1;
if(!strncmp(service,"get-state",strlen("get-state"))) {
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
char *state = connection_state_name(transport);
send_msg_with_okay(reply_fd, state, strlen(state));
return 0;
}
return -1;
}
int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s)
{
atransport *transport = NULL;
char buf[4096];
if(!strcmp(service, "kill")) {
fprintf(stderr,"adb server killed by remote request\n");
fflush(stdout);
adb_write(reply_fd, "OKAY", 4);
usb_cleanup();
exit(0);
}
#if ADB_HOST
// "transport:" is used for switching transport with a specified serial number
// "transport-usb:" is used for switching transport to the only USB transport
// "transport-local:" is used for switching transport to the only local transport
// "transport-any:" is used for switching transport to the only transport
if (!strncmp(service, "transport", strlen("transport"))) {
char* error_string = "unknown failure";
transport_type type = kTransportAny;
if (!strncmp(service, "transport-usb", strlen("transport-usb"))) {
type = kTransportUsb;
} else if (!strncmp(service, "transport-local", strlen("transport-local"))) {
type = kTransportLocal;
} else if (!strncmp(service, "transport-any", strlen("transport-any"))) {
type = kTransportAny;
} else if (!strncmp(service, "transport:", strlen("transport:"))) {
service += strlen("transport:");
serial = strdup(service);
}
transport = acquire_one_transport(CS_ANY, type, serial, &error_string);
if (transport) {
s->transport = transport;
adb_write(reply_fd, "OKAY", 4);
} else {
sendfailmsg(reply_fd, error_string);
}
return 1;
}
// return a list of all connected devices
if (!strcmp(service, "devices")) {
char buffer[4096];
memset(buf, 0, sizeof(buf));
memset(buffer, 0, sizeof(buffer));
D("Getting device list \n");
list_transports(buffer, sizeof(buffer));
snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer);
D("Wrote device list \n");
writex(reply_fd, buf, strlen(buf));
return 0;
}
// add a new TCP transport, device or emulator
if (!strncmp(service, "connect:", 8)) {
char buffer[4096];
char* host = service + 8;
if (!strncmp(host, "emu:", 4)) {
connect_emulator(host + 4, buffer, sizeof(buffer));
} else {
connect_device(host, buffer, sizeof(buffer));
}
// Send response for emulator and device
snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer);
writex(reply_fd, buf, strlen(buf));
return 0;
}
// remove TCP transport
if (!strncmp(service, "disconnect:", 11)) {
char buffer[4096];
memset(buffer, 0, sizeof(buffer));
char* serial = service + 11;
if (serial[0] == 0) {
// disconnect from all TCP devices
unregister_all_tcp_transports();
} else {
char hostbuf[100];
// assume port 5555 if no port is specified
if (!strchr(serial, ':')) {
snprintf(hostbuf, sizeof(hostbuf) - 1, "%s:5555", serial);
serial = hostbuf;
}
atransport *t = find_transport(serial);
if (t) {
unregister_transport(t);
} else {
snprintf(buffer, sizeof(buffer), "No such device %s", serial);
}
}
snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer);
writex(reply_fd, buf, strlen(buf));
return 0;
}
// returns our value for ADB_SERVER_VERSION
if (!strcmp(service, "version")) {
char version[12];
snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION);
snprintf(buf, sizeof buf, "OKAY%04x%s", (unsigned)strlen(version), version);
writex(reply_fd, buf, strlen(buf));
return 0;
}
if(!strncmp(service,"get-serialno",strlen("get-serialno"))) {
char *out = "unknown";
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
if (transport && transport->serial) {
out = transport->serial;
}
snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out);
writex(reply_fd, buf, strlen(buf));
return 0;
}
// indicates a new emulator instance has started
if (!strncmp(service,"emulator:",9)) {
int port = atoi(service+9);
local_connect(port);
/* we don't even need to send a reply */
return 0;
}
#endif // ADB_HOST
if(!strncmp(service,"forward:",8) || !strncmp(service,"killforward:",12)) {
char *local, *remote, *err;
int r;
atransport *transport;
int createForward = strncmp(service,"kill",4);
local = service + (createForward ? 8 : 12);
remote = strchr(local,';');
if(remote == 0) {
sendfailmsg(reply_fd, "malformed forward spec");
return 0;
}
*remote++ = 0;
if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){
sendfailmsg(reply_fd, "malformed forward spec");
return 0;
}
transport = acquire_one_transport(CS_ANY, ttype, serial, &err);
if (!transport) {
sendfailmsg(reply_fd, err);
return 0;
}
if (createForward) {
r = install_listener(local, remote, transport);
} else {
r = remove_listener(local, remote, transport);
}
if(r == 0) {
/* 1st OKAY is connect, 2nd OKAY is status */
writex(reply_fd, "OKAYOKAY", 8);
return 0;
}
if (createForward) {
sendfailmsg(reply_fd, (r == -1) ? "cannot rebind smartsocket" : "cannot bind socket");
} else {
sendfailmsg(reply_fd, "cannot remove listener");
}
return 0;
}
if(!strncmp(service,"get-state",strlen("get-state"))) {
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
char *state = connection_state_name(transport);
snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state);
writex(reply_fd, buf, strlen(buf));
return 0;
}
return -1;
}
/* A worker thread that monitors host connections, and registers a transport for
* every new host connection. This thread replaces server_socket_thread on
* condition that adbd daemon runs inside the emulator, and emulator uses QEMUD
* pipe to communicate with adbd daemon inside the guest. This is done in order
* to provide more robust communication channel between ADB host and guest. The
* main issue with server_socket_thread approach is that it runs on top of TCP,
* and thus is sensitive to network disruptions. For instance, the
* ConnectionManager may decide to reset all network connections, in which case
* the connection between ADB host and guest will be lost. To make ADB traffic
* independent from the network, we use here 'adb' QEMUD service to transfer data
* between the host, and the guest. See external/qemu/android/adb-*.* that
* implements the emulator's side of the protocol. Another advantage of using
* QEMUD approach is that ADB will be up much sooner, since it doesn't depend
* anymore on network being set up.
* The guest side of the protocol contains the following phases:
* - Connect with adb QEMUD service. In this phase a handle to 'adb' QEMUD service
* is opened, and it becomes clear whether or not emulator supports that
* protocol.
* - Wait for the ADB host to create connection with the guest. This is done by
* sending an 'accept' request to the adb QEMUD service, and waiting on
* response.
* - When new ADB host connection is accepted, the connection with adb QEMUD
* service is registered as the transport, and a 'start' request is sent to the
* adb QEMUD service, indicating that the guest is ready to receive messages.
* Note that the guest will ignore messages sent down from the emulator before
* the transport registration is completed. That's why we need to send the
* 'start' request after the transport is registered.
*/
static void *qemu_socket_thread(void * arg)
{
/* 'accept' request to the adb QEMUD service. */
static const char _accept_req[] = "accept";
/* 'start' request to the adb QEMUD service. */
static const char _start_req[] = "start";
/* 'ok' reply from the adb QEMUD service. */
static const char _ok_resp[] = "ok";
const int port = (int) (uintptr_t) arg;
int res, fd;
char tmp[256];
char con_name[32];
D("transport: qemu_socket_thread() starting\n");
/* adb QEMUD service connection request. */
snprintf(con_name, sizeof(con_name), "qemud:adb:%d", port);
/* Connect to the adb QEMUD service. */
fd = qemu_pipe_open(con_name);
if (fd < 0) {
/* This could be an older version of the emulator, that doesn't
* implement adb QEMUD service. Fall back to the old TCP way. */
D("adb service is not available. Falling back to TCP socket.\n");
adb_thread_create(server_socket_thread, arg);
return 0;
}
for(;;) {
/*
* Wait till the host creates a new connection.
*/
/* Send the 'accept' request. */
res = adb_write(fd, _accept_req, strlen(_accept_req));
if ((size_t)res == strlen(_accept_req)) {
/* Wait for the response. In the response we expect 'ok' on success,
* or 'ko' on failure. */
res = adb_read(fd, tmp, sizeof(tmp));
if (res != 2 || memcmp(tmp, _ok_resp, 2)) {
D("Accepting ADB host connection has failed.\n");
adb_close(fd);
} else {
/* Host is connected. Register the transport, and start the
* exchange. */
register_socket_transport(fd, "host", port, 1);
adb_write(fd, _start_req, strlen(_start_req));
}
/* Prepare for accepting of the next ADB host connection. */
fd = qemu_pipe_open(con_name);
if (fd < 0) {
D("adb service become unavailable.\n");
return 0;
}
} else {
D("Unable to send the '%s' request to ADB service.\n", _accept_req);
return 0;
}
}
D("transport: qemu_socket_thread() exiting\n");
return 0;
}
static void local_socket_event_func(int fd, unsigned ev, void* _s) {
asocket* s = reinterpret_cast<asocket*>(_s);
D("LS(%d): event_func(fd=%d(==%d), ev=%04x)", s->id, s->fd, fd, ev);
/* put the FDE_WRITE processing before the FDE_READ
** in order to simplify the code.
*/
if (ev & FDE_WRITE) {
apacket* p;
while ((p = s->pkt_first) != nullptr) {
while (p->len > 0) {
int r = adb_write(fd, p->ptr, p->len);
if (r == -1) {
/* returning here is ok because FDE_READ will
** be processed in the next iteration loop
*/
if (errno == EAGAIN) {
return;
}
} else if (r > 0) {
p->ptr += r;
p->len -= r;
continue;
}
D(" closing after write because r=%d and errno is %d", r, errno);
s->has_write_error = true;
s->close(s);
return;
}
if (p->len == 0) {
s->pkt_first = p->next;
if (s->pkt_first == 0) {
s->pkt_last = 0;
}
put_apacket(p);
}
}
/* if we sent the last packet of a closing socket,
** we can now destroy it.
*/
if (s->closing) {
D(" closing because 'closing' is set after write");
s->close(s);
return;
}
/* no more packets queued, so we can ignore
** writable events again and tell our peer
** to resume writing
*/
fdevent_del(&s->fde, FDE_WRITE);
s->peer->ready(s->peer);
}
if (ev & FDE_READ) {
apacket* p = get_apacket();
char* x = p->data;
const size_t max_payload = s->get_max_payload();
size_t avail = max_payload;
int r = 0;
int is_eof = 0;
while (avail > 0) {
r = adb_read(fd, x, avail);
D("LS(%d): post adb_read(fd=%d,...) r=%d (errno=%d) avail=%zu", s->id, s->fd, r,
r < 0 ? errno : 0, avail);
if (r == -1) {
if (errno == EAGAIN) {
break;
}
} else if (r > 0) {
avail -= r;
x += r;
continue;
}
/* r = 0 or unhandled error */
is_eof = 1;
break;
}
D("LS(%d): fd=%d post avail loop. r=%d is_eof=%d forced_eof=%d", s->id, s->fd, r, is_eof,
s->fde.force_eof);
if ((avail == max_payload) || (s->peer == 0)) {
put_apacket(p);
} else {
p->len = max_payload - avail;
// s->peer->enqueue() may call s->close() and free s,
// so save variables for debug printing below.
unsigned saved_id = s->id;
int saved_fd = s->fd;
r = s->peer->enqueue(s->peer, p);
D("LS(%u): fd=%d post peer->enqueue(). r=%d", saved_id, saved_fd, r);
if (r < 0) {
/* error return means they closed us as a side-effect
** and we must return immediately.
**
** note that if we still have buffered packets, the
** socket will be placed on the closing socket list.
** this handler function will be called again
** to process FDE_WRITE events.
*/
return;
}
if (r > 0) {
/* if the remote cannot accept further events,
** we disable notification of READs. They'll
** be enabled again when we get a call to ready()
*/
fdevent_del(&s->fde, FDE_READ);
}
}
/* Don't allow a forced eof if data is still there */
if ((s->fde.force_eof && !r) || is_eof) {
D(" closing because is_eof=%d r=%d s->fde.force_eof=%d", is_eof, r, s->fde.force_eof);
s->close(s);
return;
}
}
if (ev & FDE_ERROR) {
/* this should be caught be the next read or write
** catching it here means we may skip the last few
** bytes of readable data.
*/
D("LS(%d): FDE_ERROR (fd=%d)", s->id, s->fd);
return;
}
}
int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s)
{
D("service=%s, ttype=%d, serial=%s, reply_fd=%d, asocket=?\n",
service, ttype, serial, reply_fd);
atransport *transport = NULL;
char buf[4096];
if(!strcmp(service, "kill")) {
fprintf(stderr,"adb server killed by remote request\n");
fflush(stdout);
adb_write(reply_fd, "OKAY", 4);
usb_cleanup();
exit(0);
}
#if ADB_HOST
// "transport:" is used for switching transport with a specified serial number
// "transport-usb:" is used for switching transport to the only USB transport
// "transport-local:" is used for switching transport to the only local transport
// "transport-any:" is used for switching transport to the only transport
if (!strncmp(service, "transport", strlen("transport"))) {
char* error_string = "unknown failure";
transport_type type = kTransportAny;
if (!strncmp(service, "transport-usb", strlen("transport-usb"))) {
type = kTransportUsb;
} else if (!strncmp(service, "transport-local", strlen("transport-local"))) {
type = kTransportLocal;
} else if (!strncmp(service, "transport-any", strlen("transport-any"))) {
type = kTransportAny;
} else if (!strncmp(service, "transport:", strlen("transport:"))) {
service += strlen("transport:");
serial = service;
}
transport = acquire_one_transport(CS_ANY, type, serial, &error_string);
if (transport) {
s->transport = transport;
adb_write(reply_fd, "OKAY", 4);
} else {
sendfailmsg(reply_fd, error_string);
}
return 1;
}
// return a list of all connected devices
if (!strncmp(service, "devices", 7)) {
char buffer[4096];
int use_long = !strcmp(service+7, "-l");
if (use_long || service[7] == 0) {
memset(buf, 0, sizeof(buf));
memset(buffer, 0, sizeof(buffer));
D("Getting device list \n");
list_transports(buffer, sizeof(buffer), use_long);
snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer);
D("Wrote device list \n");
writex(reply_fd, buf, strlen(buf));
return 0;
}
}
// add a new TCP transport, device or emulator
if (!strncmp(service, "connect:", 8)) {
char buffer[4096];
char* host = service + 8;
if (!strncmp(host, "emu:", 4)) {
connect_emulator(host + 4, buffer, sizeof(buffer));
} else {
connect_device(host, buffer, sizeof(buffer));
}
// Send response for emulator and device
snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer);
writex(reply_fd, buf, strlen(buf));
return 0;
}
// remove TCP transport
// Disable the disconnect service to prevent complexity with Windows
//
// returns our value for ADB_SERVER_VERSION
if (!strcmp(service, "version")) {
printf("the version service is disabled.\n");
return -1;
}
if(!strncmp(service,"get-serialno",strlen("get-serialno"))) {
char *out = "unknown";
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
if (transport && transport->serial) {
out = transport->serial;
}
snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out);
writex(reply_fd, buf, strlen(buf));
return 0;
}
if(!strncmp(service,"get-devpath",strlen("get-devpath"))) {
char *out = "unknown";
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
if (transport && transport->devpath) {
out = transport->devpath;
}
snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out);
writex(reply_fd, buf, strlen(buf));
return 0;
}
// indicates a new emulator instance has started
if (!strncmp(service,"emulator:",9)) {
int port = atoi(service+9);
local_connect(port);
/* we don't even need to send a reply */
return 0;
}
#endif // ADB_HOST
if(!strcmp(service,"list-forward")) {
// Create the list of forward redirections.
char header[9];
int buffer_size = format_listeners(NULL, 0);
// Add one byte for the trailing zero.
char* buffer = (char*)malloc(buffer_size+1);
(void) format_listeners(buffer, buffer_size+1);
snprintf(header, sizeof header, "OKAY%04x", buffer_size);
writex(reply_fd, header, 8);
writex(reply_fd, buffer, buffer_size);
free(buffer);
return 0;
}
if (!strcmp(service,"killforward-all")) {
remove_all_listeners();
adb_write(reply_fd, "OKAYOKAY", 8);
return 0;
}
if(!strncmp(service,"forward:",8) ||
!strncmp(service,"killforward:",12)) {
char *local, *remote, *err;
int r;
atransport *transport;
int createForward = strncmp(service,"kill",4);
int no_rebind = 0;
local = strchr(service, ':') + 1;
// Handle forward:norebind:<local>... here
if (createForward && !strncmp(local, "norebind:", 9)) {
no_rebind = 1;
local = strchr(local, ':') + 1;
}
remote = strchr(local,';');
if (createForward) {
// Check forward: parameter format: '<local>;<remote>'
if(remote == 0) {
sendfailmsg(reply_fd, "malformed forward spec");
return 0;
}
*remote++ = 0;
if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){
sendfailmsg(reply_fd, "malformed forward spec");
return 0;
}
} else {
// Check killforward: parameter format: '<local>'
if (local[0] == 0) {
sendfailmsg(reply_fd, "malformed forward spec");
return 0;
}
}
transport = acquire_one_transport(CS_ANY, ttype, serial, &err);
if (!transport) {
sendfailmsg(reply_fd, err);
return 0;
}
if (createForward) {
r = install_listener(local, remote, transport, no_rebind);
} else {
r = remove_listener(local, transport);
}
if(r == 0) {
/* 1st OKAY is connect, 2nd OKAY is status */
writex(reply_fd, "OKAYOKAY", 8);
return 0;
}
if (createForward) {
const char* message;
switch (r) {
case INSTALL_STATUS_CANNOT_BIND:
message = "cannot bind to socket";
break;
case INSTALL_STATUS_CANNOT_REBIND:
message = "cannot rebind existing socket";
break;
default:
message = "internal error";
}
sendfailmsg(reply_fd, message);
} else {
sendfailmsg(reply_fd, "cannot remove listener");
}
return 0;
}
if(!strncmp(service,"get-state",strlen("get-state"))) {
transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
char *state = connection_state_name(transport);
snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state);
writex(reply_fd, buf, strlen(buf));
return 0;
}
return -1;
}
static int create_subprocess(const char *cmd, const char *arg0, const char *arg1, pid_t *pid)
{
#ifdef HAVE_WIN32_PROC
D("create_subprocess(cmd=%s, arg0=%s, arg1=%s)\n", cmd, arg0, arg1);
fprintf(stderr, "error: create_subprocess not implemented on Win32 (%s %s %s)\n", cmd, arg0, arg1);
return -1;
#else /* !HAVE_WIN32_PROC */
char *devname;
int ptm;
ptm = unix_open("/dev/ptmx", O_RDWR); // | O_NOCTTY);
if(ptm < 0){
printf("[ cannot open /dev/ptmx - %s ]\n",strerror(errno));
return -1;
}
fcntl(ptm, F_SETFD, FD_CLOEXEC);
if(grantpt(ptm) || unlockpt(ptm) ||
((devname = (char*) ptsname(ptm)) == 0)){
printf("[ trouble with /dev/ptmx - %s ]\n", strerror(errno));
adb_close(ptm);
return -1;
}
*pid = fork();
if(*pid < 0) {
printf("- fork failed: pid(%d) %s -\n", *pid, strerror(errno));
XLOGV("- fork failed: pid(%d) %s -\n", *pid, strerror(errno));
adb_close(ptm);
return -1;
}
if(*pid == 0){
int pts;
setsid();
pts = unix_open(devname, O_RDWR);
if(pts < 0) {
fprintf(stderr, "child failed to open pseudo-term slave: %s\n", devname);
XLOGV("child failed to open pseudo-term slave: %s\n", devname);
exit(-1);
}
dup2(pts, 0);
dup2(pts, 1);
dup2(pts, 2);
adb_close(pts);
adb_close(ptm);
// set OOM adjustment to zero
char text[64];
snprintf(text, sizeof text, "/proc/%d/oom_adj", getpid());
int fd = adb_open(text, O_WRONLY);
if (fd >= 0) {
adb_write(fd, "0", 1);
adb_close(fd);
} else {
D("adb: unable to open %s\n", text);
XLOGW("adb: unable to open %s\n", text);
}
timer_t timerid;
struct sigevent sev;
/* Create the timer */
sev.sigev_notify = SIGEV_SIGNAL;
sev.sigev_signo = SIGALRM;
sev.sigev_value.sival_ptr = &timerid;
if (timer_create(CLOCK_REALTIME, &sev, &timerid) == -1)
{
D("adb: Call timer_create failed!\n");
XLOGV("adb: Call timer_create failed!\n");
exit(-1);
}
struct itimerspec its;
/* Start the timer */
its.it_value.tv_sec = 1;
its.it_value.tv_nsec = 0;
its.it_interval.tv_sec = 3;
its.it_interval.tv_nsec = 0;
if (timer_settime(timerid, 0, &its, NULL) == -1)
{
D("adb: Call timer_settime failed!\n");
XLOGV("adb: Call timer_settime failed!\n");
exit(-1);
}
sigset_t mask;
struct sigaction sa;
/* Establish handler for timer signal */
sa.sa_flags = SA_SIGINFO;
sa.sa_sigaction = catcher;
sigemptyset(&sa.sa_mask);
if (sigaction(SIGALRM, &sa, NULL) == -1)
{
D("adb: Call sigaction failed!\n");
XLOGV("adb: Call sigaction failed!\n");
exit(-1);
}
int nRet = execl(cmd, cmd, arg0, arg1, NULL);
fprintf(stderr, "- exec '%s' failed: %s (%d) nRet(%d) -\n",
cmd, strerror(errno), errno, nRet);
XLOGV("- exec '%s' failed: %s (%d) nRet(%d) -\n",
cmd, strerror(errno), errno, nRet);
exit(-1);
} else {
// Don't set child's OOM adjustment to zero.
// Let the child do it itself, as sometimes the parent starts
// running before the child has a /proc/pid/oom_adj.
// """adb: unable to open /proc/644/oom_adj""" seen in some logs.
return ptm;
}
#endif /* !HAVE_WIN32_PROC */
}
// Try to handle a network forwarding request.
// This returns 1 on success, 0 on failure, and -1 to indicate this is not
// a forwarding-related request.
int handle_forward_request(const char* service, transport_type ttype, char* serial, int reply_fd)
{
if (!strcmp(service, "list-forward")) {
// Create the list of forward redirections.
int buffer_size = format_listeners(NULL, 0);
// Add one byte for the trailing zero.
char* buffer = malloc(buffer_size + 1);
if (buffer == NULL) {
sendfailmsg(reply_fd, "not enough memory");
return 1;
}
(void) format_listeners(buffer, buffer_size + 1);
#if ADB_HOST
send_msg_with_okay(reply_fd, buffer, buffer_size);
#else
send_msg_with_header(reply_fd, buffer, buffer_size);
#endif
free(buffer);
return 1;
}
if (!strcmp(service, "killforward-all")) {
remove_all_listeners();
#if ADB_HOST
/* On the host: 1st OKAY is connect, 2nd OKAY is status */
adb_write(reply_fd, "OKAY", 4);
#endif
adb_write(reply_fd, "OKAY", 4);
return 1;
}
if (!strncmp(service, "forward:",8) ||
!strncmp(service, "killforward:",12)) {
char *local, *remote, *err;
int r;
atransport *transport;
int createForward = strncmp(service, "kill", 4);
int no_rebind = 0;
local = strchr(service, ':') + 1;
// Handle forward:norebind:<local>... here
if (createForward && !strncmp(local, "norebind:", 9)) {
no_rebind = 1;
local = strchr(local, ':') + 1;
}
remote = strchr(local,';');
if (createForward) {
// Check forward: parameter format: '<local>;<remote>'
if(remote == 0) {
sendfailmsg(reply_fd, "malformed forward spec");
return 1;
}
*remote++ = 0;
if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')) {
sendfailmsg(reply_fd, "malformed forward spec");
return 1;
}
} else {
// Check killforward: parameter format: '<local>'
if (local[0] == 0) {
sendfailmsg(reply_fd, "malformed forward spec");
return 1;
}
}
transport = acquire_one_transport(CS_ANY, ttype, serial, &err);
if (!transport) {
sendfailmsg(reply_fd, err);
return 1;
}
if (createForward) {
r = install_listener(local, remote, transport, no_rebind);
} else {
r = remove_listener(local, transport);
}
if(r == 0) {
#if ADB_HOST
/* On the host: 1st OKAY is connect, 2nd OKAY is status */
writex(reply_fd, "OKAY", 4);
#endif
writex(reply_fd, "OKAY", 4);
return 1;
}
if (createForward) {
const char* message;
switch (r) {
case INSTALL_STATUS_CANNOT_BIND:
message = "cannot bind to socket";
break;
case INSTALL_STATUS_CANNOT_REBIND:
message = "cannot rebind existing socket";
break;
default:
message = "internal error";
}
sendfailmsg(reply_fd, message);
} else {
sendfailmsg(reply_fd, "cannot remove listener");
}
return 1;
}
return 0;
}
