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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #define TRACE_TAG TRACE_ADB
     18 
     19 #include "sysdeps.h"
     20 #include "adb_auth.h"
     21 
     22 #include <errno.h>
     23 #include <stdio.h>
     24 #include <string.h>
     25 #include <sys/types.h>
     26 #include <unistd.h>
     27 
     28 #include "adb.h"
     29 #include "transport.h"
     30 
     31 bool auth_required = true;
     32 
     33 void send_auth_request(atransport *t)
     34 {
     35     D("Calling send_auth_request\n");
     36     apacket *p;
     37     int ret;
     38 
     39     ret = adb_auth_generate_token(t->token, sizeof(t->token));
     40     if (ret != sizeof(t->token)) {
     41         D("Error generating token ret=%d\n", ret);
     42         return;
     43     }
     44 
     45     p = get_apacket();
     46     memcpy(p->data, t->token, ret);
     47     p->msg.command = A_AUTH;
     48     p->msg.arg0 = ADB_AUTH_TOKEN;
     49     p->msg.data_length = ret;
     50     send_packet(p, t);
     51 }
     52 
     53 void send_auth_response(uint8_t *token, size_t token_size, atransport *t)
     54 {
     55     D("Calling send_auth_response\n");
     56     apacket *p = get_apacket();
     57     int ret;
     58 
     59     ret = adb_auth_sign(t->key, token, token_size, p->data);
     60     if (!ret) {
     61         D("Error signing the token\n");
     62         put_apacket(p);
     63         return;
     64     }
     65 
     66     p->msg.command = A_AUTH;
     67     p->msg.arg0 = ADB_AUTH_SIGNATURE;
     68     p->msg.data_length = ret;
     69     send_packet(p, t);
     70 }
     71 
     72 void send_auth_publickey(atransport *t)
     73 {
     74     D("Calling send_auth_publickey\n");
     75     apacket *p = get_apacket();
     76     int ret;
     77 
     78     ret = adb_auth_get_userkey(p->data, sizeof(p->data));
     79     if (!ret) {
     80         D("Failed to get user public key\n");
     81         put_apacket(p);
     82         return;
     83     }
     84 
     85     p->msg.command = A_AUTH;
     86     p->msg.arg0 = ADB_AUTH_RSAPUBLICKEY;
     87     p->msg.data_length = ret;
     88     send_packet(p, t);
     89 }
     90 
     91 void adb_auth_verified(atransport *t)
     92 {
     93     handle_online(t);
     94     send_connect(t);
     95 }
     96