1 /******************************************************************************
2  *
3  *  Copyright (C) 2014 Google, Inc.
4  *
5  *  Licensed under the Apache License, Version 2.0 (the "License");
6  *  you may not use this file except in compliance with the License.
7  *  You may obtain a copy of the License at:
8  *
9  *  http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  *
17  ******************************************************************************/
18 
19 #define LOG_TAG "bt_stack_config"
20 
21 #include "stack_config.h"
22 
23 #include <assert.h>
24 
25 #include "osi/include/future.h"
26 #include "osi/include/log.h"
27 
28 const char *BTSNOOP_LOG_PATH_KEY = "BtSnoopFileName";
29 const char *BTSNOOP_TURNED_ON_KEY = "BtSnoopLogOutput";
30 const char *BTSNOOP_SHOULD_SAVE_LAST_KEY = "BtSnoopSaveLog";
31 const char *TRACE_CONFIG_ENABLED_KEY = "TraceConf";
32 const char *PTS_SECURE_ONLY_MODE = "PTS_SecurePairOnly";
33 const char *PTS_LE_CONN_UPDATED_DISABLED = "PTS_DisableConnUpdates";
34 const char *PTS_DISABLE_SDP_LE_PAIR = "PTS_DisableSDPOnLEPair";
35 const char *PTS_SMP_PAIRING_OPTIONS_KEY = "PTS_SmpOptions";
36 const char *PTS_SMP_FAILURE_CASE_KEY = "PTS_SmpFailureCase";
37 
38 static config_t *config;
39 
40 // Module lifecycle functions
41 
init()42 static future_t *init() {
43 // TODO(armansito): Find a better way than searching by a hardcoded path.
44 #if defined(OS_GENERIC)
45   const char *path = "bt_stack.conf";
46 #else  // !defined(OS_GENERIC)
47   const char *path = "/etc/bluetooth/bt_stack.conf";
48 #endif  // defined(OS_GENERIC)
49   assert(path != NULL);
50 
51   LOG_INFO(LOG_TAG, "%s attempt to load stack conf from %s", __func__, path);
52 
53   config = config_new(path);
54   if (!config) {
55     LOG_INFO(LOG_TAG, "%s file >%s< not found", __func__, path);
56     return future_new_immediate(FUTURE_FAIL);
57   }
58 
59   return future_new_immediate(FUTURE_SUCCESS);
60 }
61 
clean_up()62 static future_t *clean_up() {
63   config_free(config);
64   config = NULL;
65   return future_new_immediate(FUTURE_SUCCESS);
66 }
67 
68 EXPORT_SYMBOL const module_t stack_config_module = {
69   .name = STACK_CONFIG_MODULE,
70   .init = init,
71   .start_up = NULL,
72   .shut_down = NULL,
73   .clean_up = clean_up,
74   .dependencies = {
75     NULL
76   }
77 };
78 
79 // Interface functions
80 
get_btsnoop_log_path(void)81 static const char *get_btsnoop_log_path(void) {
82   return config_get_string(config, CONFIG_DEFAULT_SECTION, BTSNOOP_LOG_PATH_KEY, "/data/misc/bluedroid/btsnoop_hci.log");
83 }
84 
get_btsnoop_turned_on(void)85 static bool get_btsnoop_turned_on(void) {
86   return config_get_bool(config, CONFIG_DEFAULT_SECTION, BTSNOOP_TURNED_ON_KEY, false);
87 }
88 
get_btsnoop_should_save_last(void)89 static bool get_btsnoop_should_save_last(void) {
90   return config_get_bool(config, CONFIG_DEFAULT_SECTION, BTSNOOP_SHOULD_SAVE_LAST_KEY, false);
91 }
92 
get_trace_config_enabled(void)93 static bool get_trace_config_enabled(void) {
94   return config_get_bool(config, CONFIG_DEFAULT_SECTION, TRACE_CONFIG_ENABLED_KEY, false);
95 }
96 
get_pts_secure_only_mode(void)97 static bool get_pts_secure_only_mode(void) {
98     return config_get_bool(config, CONFIG_DEFAULT_SECTION, PTS_SECURE_ONLY_MODE, false);
99 }
100 
get_pts_conn_updates_disabled(void)101 static bool get_pts_conn_updates_disabled(void) {
102   return config_get_bool(config, CONFIG_DEFAULT_SECTION, PTS_LE_CONN_UPDATED_DISABLED, false);
103 }
104 
get_pts_crosskey_sdp_disable(void)105 static bool get_pts_crosskey_sdp_disable(void) {
106   return config_get_bool(config, CONFIG_DEFAULT_SECTION, PTS_DISABLE_SDP_LE_PAIR, false);
107 }
108 
get_pts_smp_options(void)109 static const char *get_pts_smp_options(void) {
110   return config_get_string(config, CONFIG_DEFAULT_SECTION, PTS_SMP_PAIRING_OPTIONS_KEY, NULL);
111 }
112 
get_pts_smp_failure_case(void)113 static int get_pts_smp_failure_case(void) {
114   return config_get_int(config, CONFIG_DEFAULT_SECTION, PTS_SMP_FAILURE_CASE_KEY, 0);
115 }
116 
get_all(void)117 static config_t *get_all(void) {
118   return config;
119 }
120 
121 const stack_config_t interface = {
122   get_btsnoop_log_path,
123   get_btsnoop_turned_on,
124   get_btsnoop_should_save_last,
125   get_trace_config_enabled,
126   get_pts_secure_only_mode,
127   get_pts_conn_updates_disabled,
128   get_pts_crosskey_sdp_disable,
129   get_pts_smp_options,
130   get_pts_smp_failure_case,
131   get_all
132 };
133 
stack_config_get_interface()134 const stack_config_t *stack_config_get_interface() {
135   return &interface;
136 }
137