Lose USB transport code to libadb.

Bug: 17626262
Change-Id: If41031ba20a3a75fa510f155c654a482b47e409d

5 files changed, 2 insertions, 1469 deletions

diff --git a/minadbd/Android.mk b/minadbd/Android.mk
index c077157..8de1b74 100644
--- a/minadbd/Android.mk
+++ b/minadbd/Android.mk
@@ -13,11 +13,8 @@ include $(CLEAR_VARS)
 LOCAL_SRC_FILES := \
 	adb.c \
 	fuse_adb_provider.c \
-	transport.c \
-	transport_usb.c \
 	sockets.c \
 	services.c \
-	usb_linux_client.c \
 	utils.c
 
 LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
diff --git a/minadbd/adb.h b/minadbd/adb.h
index 010a364..58818a9 100644
--- a/minadbd/adb.h
+++ b/minadbd/adb.h
@@ -257,7 +257,8 @@ void close_usb_devices();
 void unregister_transport(atransport *t);
 void unregister_all_tcp_transports();
 
-void register_usb_transport(usb_handle *h, const char *serial, unsigned writeable);
+void register_usb_transport(usb_handle *h, const char *serial,
+                            const char* dev_path, unsigned writeable);
 
 /* this should only be used for transports with connection_state == CS_NOPERM */
 void unregister_usb_transport(usb_handle *usb);
diff --git a/minadbd/transport.c b/minadbd/transport.c
deleted file mode 100644
index 92679f5..0000000
--- a/minadbd/transport.c
+++ /dev/null
@@ -1,803 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-
-#include "sysdeps.h"
-
-#define   TRACE_TAG  TRACE_TRANSPORT
-#include "adb.h"
-
-static void transport_unref(atransport *t);
-
-static atransport transport_list = {
-    .next = &transport_list,
-    .prev = &transport_list,
-};
-
-ADB_MUTEX_DEFINE( transport_lock );
-
-#if ADB_TRACE
-#define MAX_DUMP_HEX_LEN 16
-static void  dump_hex( const unsigned char*  ptr, size_t  len )
-{
-    int  nn, len2 = len;
-    // Build a string instead of logging each character.
-    // MAX chars in 2 digit hex, one space, MAX chars, one '\0'.
-    char buffer[MAX_DUMP_HEX_LEN *2 + 1 + MAX_DUMP_HEX_LEN + 1 ], *pb = buffer;
-
-    if (len2 > MAX_DUMP_HEX_LEN) len2 = MAX_DUMP_HEX_LEN;
-
-    for (nn = 0; nn < len2; nn++) {
-        sprintf(pb, "%02x", ptr[nn]);
-        pb += 2;
-    }
-    sprintf(pb++, " ");
-
-    for (nn = 0; nn < len2; nn++) {
-        int  c = ptr[nn];
-        if (c < 32 || c > 127)
-            c = '.';
-        *pb++ =  c;
-    }
-    *pb++ = '\0';
-    DR("%s\n", buffer);
-}
-#endif
-
-void
-kick_transport(atransport*  t)
-{
-    if (t && !t->kicked)
-    {
-        int  kicked;
-
-        adb_mutex_lock(&transport_lock);
-        kicked = t->kicked;
-        if (!kicked)
-            t->kicked = 1;
-        adb_mutex_unlock(&transport_lock);
-
-        if (!kicked)
-            t->kick(t);
-    }
-}
-
-void
-run_transport_disconnects(atransport*  t)
-{
-    adisconnect*  dis = t->disconnects.next;
-
-    D("%s: run_transport_disconnects\n", t->serial);
-    while (dis != &t->disconnects) {
-        adisconnect*  next = dis->next;
-        dis->func( dis->opaque, t );
-        dis = next;
-    }
-}
-
-#if ADB_TRACE
-static void
-dump_packet(const char* name, const char* func, apacket* p)
-{
-    unsigned  command = p->msg.command;
-    int       len     = p->msg.data_length;
-    char      cmd[9];
-    char      arg0[12], arg1[12];
-    int       n;
-
-    for (n = 0; n < 4; n++) {
-        int  b = (command >> (n*8)) & 255;
-        if (b < 32 || b >= 127)
-            break;
-        cmd[n] = (char)b;
-    }
-    if (n == 4) {
-        cmd[4] = 0;
-    } else {
-        /* There is some non-ASCII name in the command, so dump
-            * the hexadecimal value instead */
-        snprintf(cmd, sizeof cmd, "%08x", command);
-    }
-
-    if (p->msg.arg0 < 256U)
-        snprintf(arg0, sizeof arg0, "%d", p->msg.arg0);
-    else
-        snprintf(arg0, sizeof arg0, "0x%x", p->msg.arg0);
-
-    if (p->msg.arg1 < 256U)
-        snprintf(arg1, sizeof arg1, "%d", p->msg.arg1);
-    else
-        snprintf(arg1, sizeof arg1, "0x%x", p->msg.arg1);
-
-    D("%s: %s: [%s] arg0=%s arg1=%s (len=%d) ",
-        name, func, cmd, arg0, arg1, len);
-    dump_hex(p->data, len);
-}
-#endif /* ADB_TRACE */
-
-static int
-read_packet(int  fd, const char* name, apacket** ppacket)
-{
-    char *p = (char*)ppacket;  /* really read a packet address */
-    int   r;
-    int   len = sizeof(*ppacket);
-    char  buff[8];
-    if (!name) {
-        snprintf(buff, sizeof buff, "fd=%d", fd);
-        name = buff;
-    }
-    while(len > 0) {
-        r = adb_read(fd, p, len);
-        if(r > 0) {
-            len -= r;
-            p   += r;
-        } else {
-            D("%s: read_packet (fd=%d), error ret=%d errno=%d: %s\n", name, fd, r, errno, strerror(errno));
-            if((r < 0) && (errno == EINTR)) continue;
-            return -1;
-        }
-    }
-
-#if ADB_TRACE
-    if (ADB_TRACING) {
-        dump_packet(name, "from remote", *ppacket);
-    }
-#endif
-    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
-    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;
-}
-
-static void transport_socket_events(int fd, unsigned events, void *_t)
-{
-    atransport *t = _t;
-    D("transport_socket_events(fd=%d, events=%04x,...)\n", fd, events);
-    if(events & FDE_READ){
-        apacket *p = 0;
-        if(read_packet(fd, t->serial, &p)){
-            D("%s: failed to read packet from transport socket on fd %d\n", t->serial, fd);
-        } else {
-            handle_packet(p, (atransport *) _t);
-        }
-    }
-}
-
-void send_packet(apacket *p, atransport *t)
-{
-    unsigned char *x;
-    unsigned sum;
-    unsigned count;
-
-    p->msg.magic = p->msg.command ^ 0xffffffff;
-
-    count = p->msg.data_length;
-    x = (unsigned char *) p->data;
-    sum = 0;
-    while(count-- > 0){
-        sum += *x++;
-    }
-    p->msg.data_check = sum;
-
-    print_packet("send", p);
-
-    if (t == NULL) {
-        D("Transport is null \n");
-        // Zap errno because print_packet() and other stuff have errno effect.
-        errno = 0;
-        fatal_errno("Transport is null");
-    }
-
-    if(write_packet(t->transport_socket, t->serial, &p)){
-        fatal_errno("cannot enqueue packet on transport socket");
-    }
-}
-
-/* The transport is opened by transport_register_func before
-** the input and output threads are started.
-**
-** The output thread issues a SYNC(1, token) message to let
-** the input thread know to start things up.  In the event
-** of transport IO failure, the output thread will post a
-** SYNC(0,0) message to ensure shutdown.
-**
-** The transport will not actually be closed until both
-** threads exit, but the input thread will kick the transport
-** on its way out to disconnect the underlying device.
-*/
-
-static void *output_thread(void *_t)
-{
-    atransport *t = _t;
-    apacket *p;
-
-    D("%s: starting transport output thread on fd %d, SYNC online (%d)\n",
-       t->serial, t->fd, t->sync_token + 1);
-    p = get_apacket();
-    p->msg.command = A_SYNC;
-    p->msg.arg0 = 1;
-    p->msg.arg1 = ++(t->sync_token);
-    p->msg.magic = A_SYNC ^ 0xffffffff;
-    if(write_packet(t->fd, t->serial, &p)) {
-        put_apacket(p);
-        D("%s: failed to write SYNC packet\n", t->serial);
-        goto oops;
-    }
-
-    D("%s: data pump started\n", t->serial);
-    for(;;) {
-        p = get_apacket();
-
-        if(t->read_from_remote(p, t) == 0){
-            D("%s: received remote packet, sending to transport\n",
-              t->serial);
-            if(write_packet(t->fd, t->serial, &p)){
-                put_apacket(p);
-                D("%s: failed to write apacket to transport\n", t->serial);
-                goto oops;
-            }
-        } else {
-            D("%s: remote read failed for transport\n", t->serial);
-            put_apacket(p);
-            break;
-        }
-    }
-
-    D("%s: SYNC offline for transport\n", t->serial);
-    p = get_apacket();
-    p->msg.command = A_SYNC;
-    p->msg.arg0 = 0;
-    p->msg.arg1 = 0;
-    p->msg.magic = A_SYNC ^ 0xffffffff;
-    if(write_packet(t->fd, t->serial, &p)) {
-        put_apacket(p);
-        D("%s: failed to write SYNC apacket to transport", t->serial);
-    }
-
-oops:
-    D("%s: transport output thread is exiting\n", t->serial);
-    kick_transport(t);
-    transport_unref(t);
-    return 0;
-}
-
-static void *input_thread(void *_t)
-{
-    atransport *t = _t;
-    apacket *p;
-    int active = 0;
-
-    D("%s: starting transport input thread, reading from fd %d\n",
-       t->serial, t->fd);
-
-    for(;;){
-        if(read_packet(t->fd, t->serial, &p)) {
-            D("%s: failed to read apacket from transport on fd %d\n",
-               t->serial, t->fd );
-            break;
-        }
-        if(p->msg.command == A_SYNC){
-            if(p->msg.arg0 == 0) {
-                D("%s: transport SYNC offline\n", t->serial);
-                put_apacket(p);
-                break;
-            } else {
-                if(p->msg.arg1 == t->sync_token) {
-                    D("%s: transport SYNC online\n", t->serial);
-                    active = 1;
-                } else {
-                    D("%s: transport ignoring SYNC %d != %d\n",
-                      t->serial, p->msg.arg1, t->sync_token);
-                }
-            }
-        } else {
-            if(active) {
-                D("%s: transport got packet, sending to remote\n", t->serial);
-                t->write_to_remote(p, t);
-            } else {
-                D("%s: transport ignoring packet while offline\n", t->serial);
-            }
-        }
-
-        put_apacket(p);
-    }
-
-    // this is necessary to avoid a race condition that occured when a transport closes
-    // while a client socket is still active.
-    close_all_sockets(t);
-
-    D("%s: transport input thread is exiting, fd %d\n", t->serial, t->fd);
-    kick_transport(t);
-    transport_unref(t);
-    return 0;
-}
-
-
-static int transport_registration_send = -1;
-static int transport_registration_recv = -1;
-static fdevent transport_registration_fde;
-
-void  update_transports(void)
-{
-    // nothing to do on the device side
-}
-
-typedef struct tmsg tmsg;
-struct tmsg
-{
-    atransport *transport;
-    int         action;
-};
-
-static int
-transport_read_action(int  fd, struct tmsg*  m)
-{
-    char *p   = (char*)m;
-    int   len = sizeof(*m);
-    int   r;
-
-    while(len > 0) {
-        r = adb_read(fd, p, len);
-        if(r > 0) {
-            len -= r;
-            p   += r;
-        } else {
-            if((r < 0) && (errno == EINTR)) continue;
-            D("transport_read_action: on fd %d, error %d: %s\n",
-              fd, errno, strerror(errno));
-            return -1;
-        }
-    }
-    return 0;
-}
-
-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 void transport_registration_func(int _fd, unsigned ev, void *data)
-{
-    tmsg m;
-    adb_thread_t output_thread_ptr;
-    adb_thread_t input_thread_ptr;
-    int s[2];
-    atransport *t;
-
-    if(!(ev & FDE_READ)) {
-        return;
-    }
-
-    if(transport_read_action(_fd, &m)) {
-        fatal_errno("cannot read transport registration socket");
-    }
-
-    t = m.transport;
-
-    if(m.action == 0){
-        D("transport: %s removing and free'ing %d\n", t->serial, t->transport_socket);
-
-            /* IMPORTANT: the remove closes one half of the
-            ** socket pair.  The close closes the other half.
-            */
-        fdevent_remove(&(t->transport_fde));
-        adb_close(t->fd);
-
-        adb_mutex_lock(&transport_lock);
-        t->next->prev = t->prev;
-        t->prev->next = t->next;
-        adb_mutex_unlock(&transport_lock);
-
-        run_transport_disconnects(t);
-
-        if (t->product)
-            free(t->product);
-        if (t->serial)
-            free(t->serial);
-
-        memset(t,0xee,sizeof(atransport));
-        free(t);
-
-        update_transports();
-        return;
-    }
-
-    /* don't create transport threads for inaccessible devices */
-    if (t->connection_state != CS_NOPERM) {
-        /* initial references are the two threads */
-        t->ref_count = 2;
-
-        if(adb_socketpair(s)) {
-            fatal_errno("cannot open transport socketpair");
-        }
-
-        D("transport: %s (%d,%d) starting\n", t->serial, s[0], s[1]);
-
-        t->transport_socket = s[0];
-        t->fd = s[1];
-
-        fdevent_install(&(t->transport_fde),
-                        t->transport_socket,
-                        transport_socket_events,
-                        t);
-
-        fdevent_set(&(t->transport_fde), FDE_READ);
-
-        if(adb_thread_create(&input_thread_ptr, input_thread, t)){
-            fatal_errno("cannot create input thread");
-        }
-
-        if(adb_thread_create(&output_thread_ptr, output_thread, t)){
-            fatal_errno("cannot create output thread");
-        }
-    }
-
-        /* put us on the master device list */
-    adb_mutex_lock(&transport_lock);
-    t->next = &transport_list;
-    t->prev = transport_list.prev;
-    t->next->prev = t;
-    t->prev->next = t;
-    adb_mutex_unlock(&transport_lock);
-
-    t->disconnects.next = t->disconnects.prev = &t->disconnects;
-
-    update_transports();
-}
-
-void init_transport_registration(void)
-{
-    int s[2];
-
-    if(adb_socketpair(s)){
-        fatal_errno("cannot open transport registration socketpair");
-    }
-
-    transport_registration_send = s[0];
-    transport_registration_recv = s[1];
-
-    fdevent_install(&transport_registration_fde,
-                    transport_registration_recv,
-                    transport_registration_func,
-                    0);
-
-    fdevent_set(&transport_registration_fde, FDE_READ);
-}
-
-/* the fdevent select pump is single threaded */
-static void register_transport(atransport *transport)
-{
-    tmsg m;
-    m.transport = transport;
-    m.action = 1;
-    D("transport: %s registered\n", transport->serial);
-    if(transport_write_action(transport_registration_send, &m)) {
-        fatal_errno("cannot write transport registration socket\n");
-    }
-}
-
-static void remove_transport(atransport *transport)
-{
-    tmsg m;
-    m.transport = transport;
-    m.action = 0;
-    D("transport: %s removed\n", transport->serial);
-    if(transport_write_action(transport_registration_send, &m)) {
-        fatal_errno("cannot write transport registration socket\n");
-    }
-}
-
-
-static void transport_unref_locked(atransport *t)
-{
-    t->ref_count--;
-    if (t->ref_count == 0) {
-        D("transport: %s unref (kicking and closing)\n", t->serial);
-        if (!t->kicked) {
-            t->kicked = 1;
-            t->kick(t);
-        }
-        t->close(t);
-        remove_transport(t);
-    } else {
-        D("transport: %s unref (count=%d)\n", t->serial, t->ref_count);
-    }
-}
-
-static void transport_unref(atransport *t)
-{
-    if (t) {
-        adb_mutex_lock(&transport_lock);
-        transport_unref_locked(t);
-        adb_mutex_unlock(&transport_lock);
-    }
-}
-
-void add_transport_disconnect(atransport*  t, adisconnect*  dis)
-{
-    adb_mutex_lock(&transport_lock);
-    dis->next       = &t->disconnects;
-    dis->prev       = dis->next->prev;
-    dis->prev->next = dis;
-    dis->next->prev = dis;
-    adb_mutex_unlock(&transport_lock);
-}
-
-void remove_transport_disconnect(atransport*  t, adisconnect*  dis)
-{
-    dis->prev->next = dis->next;
-    dis->next->prev = dis->prev;
-    dis->next = dis->prev = dis;
-}
-
-
-atransport *acquire_one_transport(int state, transport_type ttype, const char* serial, char** error_out)
-{
-    atransport *t;
-    atransport *result = NULL;
-    int ambiguous = 0;
-
-retry:
-    if (error_out)
-        *error_out = "device not found";
-
-    adb_mutex_lock(&transport_lock);
-    for (t = transport_list.next; t != &transport_list; t = t->next) {
-        if (t->connection_state == CS_NOPERM) {
-        if (error_out)
-            *error_out = "insufficient permissions for device";
-            continue;
-        }
-
-        /* check for matching serial number */
-        if (serial) {
-            if (t->serial && !strcmp(serial, t->serial)) {
-                result = t;
-                break;
-            }
-        } else {
-            if (ttype == kTransportUsb && t->type == kTransportUsb) {
-                if (result) {
-                    if (error_out)
-                        *error_out = "more than one device";
-                    ambiguous = 1;
-                    result = NULL;
-                    break;
-                }
-                result = t;
-            } else if (ttype == kTransportLocal && t->type == kTransportLocal) {
-                if (result) {
-                    if (error_out)
-                        *error_out = "more than one emulator";
-                    ambiguous = 1;
-                    result = NULL;
-                    break;
-                }
-                result = t;
-            } else if (ttype == kTransportAny) {
-                if (result) {
-                    if (error_out)
-                        *error_out = "more than one device and emulator";
-                    ambiguous = 1;
-                    result = NULL;
-                    break;
-                }
-                result = t;
-            }
-        }
-    }
-    adb_mutex_unlock(&transport_lock);
-
-    if (result) {
-         /* offline devices are ignored -- they are either being born or dying */
-        if (result && result->connection_state == CS_OFFLINE) {
-            if (error_out)
-                *error_out = "device offline";
-            result = NULL;
-        }
-         /* check for required connection state */
-        if (result && state != CS_ANY && result->connection_state != state) {
-            if (error_out)
-                *error_out = "invalid device state";
-            result = NULL;
-        }
-    }
-
-    if (result) {
-        /* found one that we can take */
-        if (error_out)
-            *error_out = NULL;
-    } else if (state != CS_ANY && (serial || !ambiguous)) {
-        adb_sleep_ms(1000);
-        goto retry;
-    }
-
-    return result;
-}
-
-void register_usb_transport(usb_handle *usb, const char *serial, unsigned writeable)
-{
-    atransport *t = calloc(1, sizeof(atransport));
-    D("transport: %p init'ing for usb_handle %p (sn='%s')\n", t, usb,
-      serial ? serial : "");
-    init_usb_transport(t, usb, (writeable ? CS_OFFLINE : CS_NOPERM));
-    if(serial) {
-        t->serial = strdup(serial);
-    }
-    register_transport(t);
-}
-
-/* this should only be used for transports with connection_state == CS_NOPERM */
-void unregister_usb_transport(usb_handle *usb)
-{
-    atransport *t;
-    adb_mutex_lock(&transport_lock);
-    for(t = transport_list.next; t != &transport_list; t = t->next) {
-        if (t->usb == usb && t->connection_state == CS_NOPERM) {
-            t->next->prev = t->prev;
-            t->prev->next = t->next;
-            break;
-        }
-     }
-    adb_mutex_unlock(&transport_lock);
-}
-
-#undef TRACE_TAG
-#define TRACE_TAG  TRACE_RWX
-
-int readx(int fd, void *ptr, size_t len)
-{
-    char *p = ptr;
-    int r;
-#if ADB_TRACE
-    size_t len0 = len;
-#endif
-    D("readx: fd=%d wanted=%d\n", fd, (int)len);
-    while(len > 0) {
-        r = adb_read(fd, p, len);
-        if(r > 0) {
-            len -= r;
-            p += r;
-        } else {
-            if (r < 0) {
-                D("readx: fd=%d error %d: %s\n", fd, errno, strerror(errno));
-                if (errno == EINTR)
-                    continue;
-            } else {
-                D("readx: fd=%d disconnected\n", fd);
-            }
-            return -1;
-        }
-    }
-
-#if ADB_TRACE
-    D("readx: fd=%d wanted=%zu got=%zu\n", fd, len0, len0 - len);
-    dump_hex( ptr, len0 );
-#endif
-    return 0;
-}
-
-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( 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;
-}
-
-int check_header(apacket *p)
-{
-    if(p->msg.magic != (p->msg.command ^ 0xffffffff)) {
-        D("check_header(): invalid magic\n");
-        return -1;
-    }
-
-    if(p->msg.data_length > MAX_PAYLOAD) {
-        D("check_header(): %d > MAX_PAYLOAD\n", p->msg.data_length);
-        return -1;
-    }
-
-    return 0;
-}
-
-int check_data(apacket *p)
-{
-    unsigned count, sum;
-    unsigned char *x;
-
-    count = p->msg.data_length;
-    x = p->data;
-    sum = 0;
-    while(count-- > 0) {
-        sum += *x++;
-    }
-
-    if(sum != p->msg.data_check) {
-        return -1;
-    } else {
-        return 0;
-    }
-}
diff --git a/minadbd/transport_usb.c b/minadbd/transport_usb.c
deleted file mode 100644
index 91cbf61..0000000
--- a/minadbd/transport_usb.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <sysdeps.h>
-
-#define  TRACE_TAG  TRACE_TRANSPORT
-#include "adb.h"
-
-#ifdef HAVE_BIG_ENDIAN
-#define H4(x)	(((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24)
-static inline void fix_endians(apacket *p)
-{
-    p->msg.command     = H4(p->msg.command);
-    p->msg.arg0        = H4(p->msg.arg0);
-    p->msg.arg1        = H4(p->msg.arg1);
-    p->msg.data_length = H4(p->msg.data_length);
-    p->msg.data_check  = H4(p->msg.data_check);
-    p->msg.magic       = H4(p->msg.magic);
-}
-unsigned host_to_le32(unsigned n)
-{
-    return H4(n);
-}
-#else
-#define fix_endians(p) do {} while (0)
-unsigned host_to_le32(unsigned n)
-{
-    return n;
-}
-#endif
-
-static int remote_read(apacket *p, atransport *t)
-{
-    if(usb_read(t->usb, &p->msg, sizeof(amessage))){
-        D("remote usb: read terminated (message)\n");
-        return -1;
-    }
-
-    fix_endians(p);
-
-    if(check_header(p)) {
-        D("remote usb: check_header failed\n");
-        return -1;
-    }
-
-    if(p->msg.data_length) {
-        if(usb_read(t->usb, p->data, p->msg.data_length)){
-            D("remote usb: terminated (data)\n");
-            return -1;
-        }
-    }
-
-    if(check_data(p)) {
-        D("remote usb: check_data failed\n");
-        return -1;
-    }
-
-    return 0;
-}
-
-static int remote_write(apacket *p, atransport *t)
-{
-    unsigned size = p->msg.data_length;
-
-    fix_endians(p);
-
-    if(usb_write(t->usb, &p->msg, sizeof(amessage))) {
-        D("remote usb: 1 - write terminated\n");
-        return -1;
-    }
-    if(p->msg.data_length == 0) return 0;
-    if(usb_write(t->usb, &p->data, size)) {
-        D("remote usb: 2 - write terminated\n");
-        return -1;
-    }
-
-    return 0;
-}
-
-static void remote_close(atransport *t)
-{
-    usb_close(t->usb);
-    t->usb = 0;
-}
-
-static void remote_kick(atransport *t)
-{
-    usb_kick(t->usb);
-}
-
-void init_usb_transport(atransport *t, usb_handle *h, int state)
-{
-    D("transport: usb\n");
-    t->close = remote_close;
-    t->kick = remote_kick;
-    t->read_from_remote = remote_read;
-    t->write_to_remote = remote_write;
-    t->sync_token = 1;
-    t->connection_state = state;
-    t->type = kTransportUsb;
-    t->usb = h;
-
-    HOST = 0;
-}
diff --git a/minadbd/usb_linux_client.c b/minadbd/usb_linux_client.c
deleted file mode 100644
index b3a38dc..0000000
--- a/minadbd/usb_linux_client.c
+++ /dev/null
@@ -1,541 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <linux/usb/ch9.h>
-#include <linux/usb/functionfs.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <errno.h>
-
-#include "sysdeps.h"
-
-#define   TRACE_TAG  TRACE_USB
-#include "adb.h"
-
-#define MAX_PACKET_SIZE_FS	64
-#define MAX_PACKET_SIZE_HS	512
-
-#define cpu_to_le16(x)  htole16(x)
-#define cpu_to_le32(x)  htole32(x)
-
-struct usb_handle
-{
-    int fd;
-    adb_cond_t notify;
-    adb_mutex_t lock;
-
-    int (*write)(usb_handle *h, const void *data, int len);
-    int (*read)(usb_handle *h, void *data, int len);
-    void (*kick)(usb_handle *h);
-
-    int control;
-    int bulk_out; /* "out" from the host's perspective => source for adbd */
-    int bulk_in;  /* "in" from the host's perspective => sink for adbd */
-};
-
-struct func_desc {
-    struct usb_interface_descriptor intf;
-    struct usb_endpoint_descriptor_no_audio source;
-    struct usb_endpoint_descriptor_no_audio sink;
-} __attribute__((packed));
-
-struct desc_v1 {
-    struct usb_functionfs_descs_head_v1 {
-        __le32 magic;
-        __le32 length;
-        __le32 fs_count;
-        __le32 hs_count;
-    } __attribute__((packed)) header;
-    struct func_desc fs_descs, hs_descs;
-} __attribute__((packed));
-
-struct desc_v2 {
-    struct usb_functionfs_descs_head_v2 header;
-    // The rest of the structure depends on the flags in the header.
-    __le32 fs_count;
-    __le32 hs_count;
-    struct func_desc fs_descs, hs_descs;
-} __attribute__((packed));
-
-/*static const struct {
-    struct usb_functionfs_descs_head header;
-    struct {
-        struct usb_interface_descriptor intf;
-        struct usb_endpoint_descriptor_no_audio source;
-        struct usb_endpoint_descriptor_no_audio sink;
-    } __attribute__((packed)) fs_descs, hs_descs;
-} __attribute__((packed)) descriptors = {
-    .header = {
-        .magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC),
-        .length = cpu_to_le32(sizeof(descriptors)),
-        .fs_count = 3,
-        .hs_count = 3,
-    },
-
-*/
-
-struct func_desc fs_descriptors = {
-    .intf = {
-        .bLength = sizeof(fs_descriptors.intf),
-        .bDescriptorType = USB_DT_INTERFACE,
-        .bInterfaceNumber = 0,
-        .bNumEndpoints = 2,
-        .bInterfaceClass = ADB_CLASS,
-        .bInterfaceSubClass = ADB_SUBCLASS,
-        .bInterfaceProtocol = ADB_PROTOCOL,
-        .iInterface = 1, /* first string from the provided table */
-    },
-    .source = {
-        .bLength = sizeof(fs_descriptors.source),
-        .bDescriptorType = USB_DT_ENDPOINT,
-        .bEndpointAddress = 1 | USB_DIR_OUT,
-        .bmAttributes = USB_ENDPOINT_XFER_BULK,
-        .wMaxPacketSize = MAX_PACKET_SIZE_FS,
-    },
-    .sink = {
-        .bLength = sizeof(fs_descriptors.sink),
-        .bDescriptorType = USB_DT_ENDPOINT,
-        .bEndpointAddress = 2 | USB_DIR_IN,
-        .bmAttributes = USB_ENDPOINT_XFER_BULK,
-        .wMaxPacketSize = MAX_PACKET_SIZE_FS,
-    },
-};
-
-struct func_desc hs_descriptors = {
-    .intf = {
-        .bLength = sizeof(hs_descriptors.intf),
-        .bDescriptorType = USB_DT_INTERFACE,
-        .bInterfaceNumber = 0,
-        .bNumEndpoints = 2,
-        .bInterfaceClass = ADB_CLASS,
-        .bInterfaceSubClass = ADB_SUBCLASS,
-        .bInterfaceProtocol = ADB_PROTOCOL,
-        .iInterface = 1, /* first string from the provided table */
-    },
-    .source = {
-        .bLength = sizeof(hs_descriptors.source),
-        .bDescriptorType = USB_DT_ENDPOINT,
-        .bEndpointAddress = 1 | USB_DIR_OUT,
-        .bmAttributes = USB_ENDPOINT_XFER_BULK,
-        .wMaxPacketSize = MAX_PACKET_SIZE_HS,
-    },
-    .sink = {
-        .bLength = sizeof(hs_descriptors.sink),
-        .bDescriptorType = USB_DT_ENDPOINT,
-        .bEndpointAddress = 2 | USB_DIR_IN,
-        .bmAttributes = USB_ENDPOINT_XFER_BULK,
-        .wMaxPacketSize = MAX_PACKET_SIZE_HS,
-    },
-};
-
-#define STR_INTERFACE_ "ADB Interface"
-
-static const struct {
-    struct usb_functionfs_strings_head header;
-    struct {
-        __le16 code;
-        const char str1[sizeof(STR_INTERFACE_)];
-    } __attribute__((packed)) lang0;
-} __attribute__((packed)) strings = {
-    .header = {
-        .magic = cpu_to_le32(FUNCTIONFS_STRINGS_MAGIC),
-        .length = cpu_to_le32(sizeof(strings)),
-        .str_count = cpu_to_le32(1),
-        .lang_count = cpu_to_le32(1),
-    },
-    .lang0 = {
-        cpu_to_le16(0x0409), /* en-us */
-        STR_INTERFACE_,
-    },
-};
-
-void usb_cleanup()
-{
-    // nothing to do here
-}
-
-static void *usb_adb_open_thread(void *x)
-{
-    struct usb_handle *usb = (struct usb_handle *)x;
-    int fd;
-
-    while (1) {
-        // wait until the USB device needs opening
-        adb_mutex_lock(&usb->lock);
-        while (usb->fd != -1)
-            adb_cond_wait(&usb->notify, &usb->lock);
-        adb_mutex_unlock(&usb->lock);
-
-        D("[ usb_thread - opening device ]\n");
-        do {
-            /* XXX use inotify? */
-            fd = unix_open("/dev/android_adb", O_RDWR);
-            if (fd < 0) {
-                // to support older kernels
-                fd = unix_open("/dev/android", O_RDWR);
-                fprintf(stderr, "usb_adb_open_thread: %d\n", fd );
-            }
-            if (fd < 0) {
-                adb_sleep_ms(1000);
-            }
-        } while (fd < 0);
-        D("[ opening device succeeded ]\n");
-
-        close_on_exec(fd);
-        usb->fd = fd;
-
-        D("[ usb_thread - registering device ]\n");
-        register_usb_transport(usb, 0, 1);
-    }
-
-    // never gets here
-    return 0;
-}
-
-static int usb_adb_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;
-}
-
-static int usb_adb_read(usb_handle *h, void *data, int len)
-{
-    int n;
-
-    D("about to read (fd=%d, len=%d)\n", h->fd, len);
-    n = adb_read(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;
-}
-
-static void usb_adb_kick(usb_handle *h)
-{
-    D("usb_kick\n");
-    adb_mutex_lock(&h->lock);
-    adb_close(h->fd);
-    h->fd = -1;
-
-    // notify usb_adb_open_thread that we are disconnected
-    adb_cond_signal(&h->notify);
-    adb_mutex_unlock(&h->lock);
-}
-
-static void usb_adb_init()
-{
-    usb_handle *h;
-    adb_thread_t tid;
-    int fd;
-
-    h = calloc(1, sizeof(usb_handle));
-
-    h->write = usb_adb_write;
-    h->read = usb_adb_read;
-    h->kick = usb_adb_kick;
-    h->fd = -1;
-
-    adb_cond_init(&h->notify, 0);
-    adb_mutex_init(&h->lock, 0);
-
-    fprintf(stderr, "Starting to open usb_init()\n");
-    // Open the file /dev/android_adb_enable to trigger 
-    // the enabling of the adb USB function in the kernel.
-    // We never touch this file again - just leave it open
-    // indefinitely so the kernel will know when we are running
-    // and when we are not.
-    fd = unix_open("/dev/android_adb_enable", O_RDWR);
-    fprintf(stderr, "unix_open to open usb_init(): %d\n", fd);
-    if (fd < 0) {
-       D("failed to open /dev/android_adb_enable\n");
-    } else {
-        close_on_exec(fd);
-    }
-
-    D("[ usb_init - starting thread ]\n");
-    if(adb_thread_create(&tid, usb_adb_open_thread, h)){
-        fatal_errno("cannot create usb thread");
-        fprintf(stderr, "cannot create the usb thread()\n");
-    }
-}
-
-
-static void init_functionfs(struct usb_handle *h)
-{
-    ssize_t ret;
-    struct desc_v1 v1_descriptor;
-    struct desc_v2 v2_descriptor;
-
-    v2_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2);
-    v2_descriptor.header.length = cpu_to_le32(sizeof(v2_descriptor));
-    v2_descriptor.header.flags = FUNCTIONFS_HAS_FS_DESC | FUNCTIONFS_HAS_HS_DESC;
-    v2_descriptor.fs_count = 3;
-    v2_descriptor.hs_count = 3;
-    v2_descriptor.fs_descs = fs_descriptors;
-    v2_descriptor.hs_descs = hs_descriptors;
-
-
-    D("OPENING %s\n", USB_FFS_ADB_EP0);
-    h->control = adb_open(USB_FFS_ADB_EP0, O_RDWR);
-    if (h->control < 0) {
-        D("[ %s: cannot open control endpoint: errno=%d]\n", USB_FFS_ADB_EP0, errno);
-        goto err;
-    }
-
-    ret = adb_write(h->control, &v2_descriptor, sizeof(v2_descriptor));
-    if (ret < 0) {
-            v1_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC);
-            v1_descriptor.header.length = cpu_to_le32(sizeof(v1_descriptor));
-            v1_descriptor.header.fs_count = 3;
-            v1_descriptor.header.hs_count = 3;
-            v1_descriptor.fs_descs = fs_descriptors;
-            v1_descriptor.hs_descs = hs_descriptors;
-            D("[ %s: Switching to V1_descriptor format errno=%d ]\n", USB_FFS_ADB_EP0, errno);
-            ret = adb_write(h->control, &v1_descriptor, sizeof(v1_descriptor));
-            if (ret < 0) {
-                D("[ %s: write descriptors failed: errno=%d ]\n", USB_FFS_ADB_EP0, errno);
-                goto err;
-            }
-    }
-
-    ret = adb_write(h->control, &strings, sizeof(strings));
-    if (ret < 0) {
-        D("[ %s: writing strings failed: errno=%d]\n", USB_FFS_ADB_EP0, errno);
-        goto err;
-    }
-
-    h->bulk_out = adb_open(USB_FFS_ADB_OUT, O_RDWR);
-    if (h->bulk_out < 0) {
-        D("[ %s: cannot open bulk-out ep: errno=%d ]\n", USB_FFS_ADB_OUT, errno);
-        goto err;
-    }
-
-    h->bulk_in = adb_open(USB_FFS_ADB_IN, O_RDWR);
-    if (h->bulk_in < 0) {
-        D("[ %s: cannot open bulk-in ep: errno=%d ]\n", USB_FFS_ADB_IN, errno);
-        goto err;
-    }
-
-    return;
-
-err:
-    if (h->bulk_in > 0) {
-        adb_close(h->bulk_in);
-        h->bulk_in = -1;
-    }
-    if (h->bulk_out > 0) {
-        adb_close(h->bulk_out);
-        h->bulk_out = -1;
-    }
-    if (h->control > 0) {
-        adb_close(h->control);
-        h->control = -1;
-    }
-    return;
-}
-
-static void *usb_ffs_open_thread(void *x)
-{
-    struct usb_handle *usb = (struct usb_handle *)x;
-
-    while (1) {
-        // wait until the USB device needs opening
-        adb_mutex_lock(&usb->lock);
-        while (usb->control != -1)
-            adb_cond_wait(&usb->notify, &usb->lock);
-        adb_mutex_unlock(&usb->lock);
-
-        while (1) {
-            init_functionfs(usb);
-
-            if (usb->control >= 0)
-                break;
-
-            adb_sleep_ms(1000);
-        }
-
-        D("[ usb_thread - registering device ]\n");
-        register_usb_transport(usb, 0, 1);
-    }
-
-    // never gets here
-    return 0;
-}
-
-static int bulk_write(int bulk_in, const char *buf, size_t length)
-{
-    size_t count = 0;
-    int ret;
-
-    do {
-        ret = adb_write(bulk_in, buf + count, length - count);
-        if (ret < 0) {
-            if (errno != EINTR)
-                return ret;
-        } else {
-            count += ret;
-        }
-    } while (count < length);
-
-    D("[ bulk_write done fd=%d ]\n", bulk_in);
-    return count;
-}
-
-static int usb_ffs_write(usb_handle *h, const void *data, int len)
-{
-    int n;
-
-    D("about to write (fd=%d, len=%d)\n", h->bulk_in, len);
-    n = bulk_write(h->bulk_in, data, len);
-    if (n != len) {
-        D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
-            h->bulk_in, n, errno, strerror(errno));
-        return -1;
-    }
-    D("[ done fd=%d ]\n", h->bulk_in);
-    return 0;
-}
-
-static int bulk_read(int bulk_out, char *buf, size_t length)
-{
-    size_t count = 0;
-    int ret;
-
-    do {
-        ret = adb_read(bulk_out, buf + count, length - count);
-        if (ret < 0) {
-            if (errno != EINTR) {
-                D("[ bulk_read failed fd=%d length=%zu count=%zu ]\n",
-                                           bulk_out, length, count);
-                return ret;
-            }
-        } else {
-            count += ret;
-        }
-    } while (count < length);
-
-    return count;
-}
-
-static int usb_ffs_read(usb_handle *h, void *data, int len)
-{
-    int n;
-
-    D("about to read (fd=%d, len=%d)\n", h->bulk_out, len);
-    n = bulk_read(h->bulk_out, data, len);
-    if (n != len) {
-        D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
-            h->bulk_out, n, errno, strerror(errno));
-        return -1;
-    }
-    D("[ done fd=%d ]\n", h->bulk_out);
-    return 0;
-}
-
-static void usb_ffs_kick(usb_handle *h)
-{
-    int err;
-
-    err = ioctl(h->bulk_in, FUNCTIONFS_CLEAR_HALT);
-    if (err < 0)
-        D("[ kick: source (fd=%d) clear halt failed (%d) ]", h->bulk_in, errno);
-
-    err = ioctl(h->bulk_out, FUNCTIONFS_CLEAR_HALT);
-    if (err < 0)
-        D("[ kick: sink (fd=%d) clear halt failed (%d) ]", h->bulk_out, errno);
-
-    adb_mutex_lock(&h->lock);
-    adb_close(h->control);
-    adb_close(h->bulk_out);
-    adb_close(h->bulk_in);
-    h->control = h->bulk_out = h->bulk_in = -1;
-
-    // notify usb_ffs_open_thread that we are disconnected
-    adb_cond_signal(&h->notify);
-    adb_mutex_unlock(&h->lock);
-}
-
-static void usb_ffs_init()
-{
-    usb_handle *h;
-    adb_thread_t tid;
-
-    D("[ usb_init - using FunctionFS ]\n");
-
-    h = calloc(1, sizeof(usb_handle));
-
-    h->write = usb_ffs_write;
-    h->read = usb_ffs_read;
-    h->kick = usb_ffs_kick;
-
-    h->control  = -1;
-    h->bulk_out = -1;
-    h->bulk_out = -1;
-
-    adb_cond_init(&h->notify, 0);
-    adb_mutex_init(&h->lock, 0);
-
-    D("[ usb_init - starting thread ]\n");
-    if (adb_thread_create(&tid, usb_ffs_open_thread, h)){
-        fatal_errno("[ cannot create usb thread ]\n");
-    }
-}
-
-void usb_init()
-{
-    if (access(USB_FFS_ADB_EP0, F_OK) == 0)
-        usb_ffs_init();
-    else
-        usb_adb_init();
-}
-
-int usb_write(usb_handle *h, const void *data, int len)
-{
-    return h->write(h, data, len);
-}
-
-int usb_read(usb_handle *h, void *data, int len)
-{
-    return h->read(h, data, len);
-}
-int usb_close(usb_handle *h)
-{
-    // nothing to do here
-    return 0;
-}
-
-void usb_kick(usb_handle *h)
-{
-    h->kick(h);
-}