added utility for write/read link key to a file

platforms/posix/src/remote_device_db_fs.c

@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2014 BlueKitchen GmbH
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holders nor the names of
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ * 4. Any redistribution, use, or modification is done solely for
+ *    personal benefit and not for any commercial purpose or for
+ *    monetary gain.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
+ * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Please inquire about commercial licensing options at 
+ * contact@bluekitchen-gmbh.com
+ *
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "remote_device_db.h"
+#include "debug.h"
+
+#include <btstack/utils.h>
+
+#define LINK_KEY_PATH "/tmp/"
+#define LINK_KEY_PREFIX "btstack_link_key_"
+#define LINK_KEY_SUFIX ".txt"
+
+static char keypath[sizeof(LINK_KEY_PATH) + sizeof(LINK_KEY_PREFIX) + 17 + sizeof(LINK_KEY_SUFIX) + 1];
+
+static char char_for_nibble(int nibble){
+    if (nibble < 10) return '0' + nibble;
+    nibble -= 10;
+    if (nibble < 6) return 'A' + nibble;
+    return '?';
+}
+
+static char bd_addr_to_dash_str_buffer[6*3];  // 12-45-78-01-34-67\0
+static char * bd_addr_to_dash_str(bd_addr_t addr){
+    char * p = bd_addr_to_dash_str_buffer;
+    int i;
+    for (i = 0; i < 6 ; i++) {
+        *p++ = char_for_nibble((addr[i] >> 4) & 0x0F);
+        *p++ = char_for_nibble((addr[i] >> 0) & 0x0F);
+        *p++ = '-';
+    }
+    *--p = 0;
+    return (char *) bd_addr_to_dash_str_buffer;
+}
+
+static void set_path(bd_addr_t *bd_addr){
+    strcpy(keypath, LINK_KEY_PATH);
+    strcat(keypath, LINK_KEY_PREFIX);
+    strcat(keypath, bd_addr_to_dash_str(*bd_addr));
+    strcat(keypath, LINK_KEY_SUFIX);
+}
+
+// Device info
+static void db_open(void){
+}
+
+static void db_close(void){ 
+}
+
+static void put_link_key(bd_addr_t *bd_addr, link_key_t *link_key, link_key_type_t link_key_type){
+    set_path(bd_addr);
+    char * link_key_str = link_key_to_str(*link_key);
+    char * link_key_type_str = link_key_type_to_str(link_key_type); 
+
+    FILE * wFile = fopen(keypath,"w+");
+    fwrite(link_key_str, strlen(link_key_str), 1, wFile);
+    fwrite(link_key_type_str, strlen(link_key_type_str), 1, wFile);
+    fclose(wFile);
+}
+
+static int get_link_key(bd_addr_t *bd_addr, link_key_t *link_key, link_key_type_t * link_key_type) {
+    set_path(bd_addr);
+    char link_key_str[LINK_KEY_STR_LEN + 1];
+    char link_key_type_str[2];
+
+    if (access(keypath, R_OK)) return 0;
+
+    FILE * rFile = fopen(keypath,"r+");
+    size_t objects_read = fread(link_key_str, LINK_KEY_STR_LEN, 1, rFile );
+    if (objects_read == 1){
+        link_key_str[LINK_KEY_STR_LEN] = 0;
+        printf("found link key %s\n", link_key_str);
+        objects_read = fread(link_key_type_str, 1, 1, rFile );
+    }
+    fclose(rFile);
+    
+    if (objects_read != 1) return 0;
+    link_key_type_str[1] = 0;
+    printf("found link key type %s\n", link_key_type_str);
+    
+    int scan_result = sscan_link_key(link_key_str, *link_key);
+    if (scan_result == 0 ) return 0;
+
+    scan_result = sscanf( (char *) link_key_type_str, "%d", link_key_type);
+    if (scan_result == 0 ) return 0;
+
+    return 1;
+}
+
+static void delete_link_key(bd_addr_t *bd_addr){
+    set_path(bd_addr);
+    
+    if (access(keypath, R_OK)) return;
+
+    if(remove(keypath) != 0){
+        log_error("File %s could not be deleted.\n", keypath);
+    }
+}
+
+static int get_name(bd_addr_t *bd_addr, device_name_t *device_name) {
+    return 0;
+}
+
+static void delete_name(bd_addr_t *bd_addr){
+}
+
+static void put_name(bd_addr_t *bd_addr, device_name_t *device_name){
+}
+
+const remote_device_db_t remote_device_db_fs = {
+    db_open,
+    db_close,
+    get_link_key,
+    put_link_key,
+    delete_link_key,
+    get_name,
+    put_name,
+    delete_name
+};
+
+const remote_device_db_t * remote_device_db_fs_instance(){
+    return &remote_device_db_fs;
+}

test/device_db_memory/remote_device_db_fs_test.c

@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "CppUTest/TestHarness.h"
+#include "CppUTest/CommandLineTestRunner.h"
+
+#include "remote_device_db.h"
+
+#include "btstack-config.h"
+
+const remote_device_db_t * remote_device_db_fs_instance();
+
+TEST_GROUP(RemoteDeviceDB){
+    bd_addr_t bd_addr;
+    link_key_t link_key;
+    link_key_type_t link_key_type;
+
+    void setup(){
+        bd_addr_t addr_1 = {0x00, 0x01, 0x02, 0x03, 0x04, 0x01 };
+        BD_ADDR_COPY(bd_addr, addr_1); 
+
+        link_key_type = (link_key_type_t)4;
+        sprintf((char*)link_key, "%d", 100);
+    }
+    
+    void teardown(){}
+};
+
+
+TEST(RemoteDeviceDB, SinglePutGetDeleteKey){
+	link_key_t test_link_key;
+    link_key_type_t test_link_key_type;
+    
+    remote_device_db_fs_instance()->delete_link_key(&bd_addr);
+    CHECK(remote_device_db_fs_instance()->get_link_key(&bd_addr, &test_link_key, &test_link_key_type) == 0);
+    
+	remote_device_db_fs_instance()->put_link_key(&bd_addr, &link_key, link_key_type);
+    CHECK(remote_device_db_fs_instance()->get_link_key(&bd_addr, &test_link_key, &test_link_key_type) == 1);
+    
+    CHECK(strcmp(link_key_to_str(link_key), link_key_to_str(test_link_key)) == 0);
+    
+    remote_device_db_fs_instance()->delete_link_key(&bd_addr);
+    CHECK(remote_device_db_fs_instance()->get_link_key(&bd_addr, &test_link_key, &test_link_key_type) == 0);
+}
+
+
+int main (int argc, const char * argv[]){
+    return CommandLineTestRunner::RunAllTests(argc, argv);
+}