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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2002-2005 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
* CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
* COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
* SOFTWARE IS DISCLAIMED.
*
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <malloc.h>
#include <syslog.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include "hcid.h"
#define DEVPATH "/var/lib/bluetooth/"
struct name_list {
bdaddr_t bdaddr;
char name[249];
struct name_list *next;
};
static struct name_list *name_add(struct name_list *list, const bdaddr_t *bdaddr, const char *name)
{
struct name_list *temp = list, *last = list;
if (!bacmp(bdaddr, BDADDR_ANY))
return list;
while (temp) {
if (!bacmp(&temp->bdaddr, bdaddr)) {
memcpy(temp->name, name, sizeof(temp->name));
return list;
}
temp = temp->next;
}
temp = malloc(sizeof(*temp));
if (!temp)
return list;
memset(temp, 0, sizeof(*temp));
bacpy(&temp->bdaddr, bdaddr);
memcpy(temp->name, name, sizeof(temp->name));
temp->next = NULL;
if (!list)
return temp;
while (last->next)
last = last->next;
last->next = temp;
return list;
}
static struct name_list *name_free(struct name_list *list)
{
struct name_list *temp = list;
if (!list)
return NULL;
while (list->next) {
temp = list;
list = list->next;
free(temp);
}
return NULL;
}
#define name_foreach(list, entry) \
for (entry = list; entry; entry = entry->next)
static int create_dirs(const char *filename, mode_t mode)
{
struct stat st;
char dir[PATH_MAX + 1], *prev, *next;
int err;
err = stat(filename, &st);
if (!err && S_ISREG(st.st_mode))
return 0;
memset(dir, 0, PATH_MAX + 1);
strcat(dir, "/");
prev = strchr(filename, '/');
while (prev) {
next = strchr(prev + 1, '/');
if (!next)
break;
if (next - prev == 1) {
prev = next;
continue;
}
strncat(dir, prev + 1, next - prev);
mkdir(dir, mode);
prev = next;
}
return 0;
}
int write_device_name(const bdaddr_t *local, const bdaddr_t *peer, const char *name)
{
struct name_list *temp, *list = NULL;
char filename[PATH_MAX + 1], addr[18], str[249], *buf, *ptr;
bdaddr_t bdaddr;
struct stat st;
int fd, pos, err = 0;
ba2str(local, addr);
snprintf(filename, PATH_MAX, "%s/%s/names", DEVPATH, addr);
umask(S_IWGRP | S_IWOTH);
create_dirs(filename, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
fd = open(filename, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (fd < 0)
return -errno;
if (flock(fd, LOCK_EX) < 0) {
err = -errno;
goto close;
}
if (fstat(fd, &st) < 0) {
err = -errno;
goto unlock;
}
buf = malloc(st.st_size + 200);
if (!buf) {
err = -ENOMEM;
goto unlock;
}
if (st.st_size > 0) {
read(fd, buf, st.st_size);
ptr = buf;
while (sscanf(ptr, "%17s %[^\n]\n%n", addr, str, &pos) != EOF) {
str2ba(addr, &bdaddr);
list = name_add(list, &bdaddr, str);
ptr += pos;
};
lseek(fd, 0, SEEK_SET);
ftruncate(fd, 0);
}
list = name_add(list, peer, name);
if (!list) {
err = -EIO;
goto unlock;
}
name_foreach(list, temp) {
ba2str(&temp->bdaddr, addr);
snprintf(buf, 200, "%s %s\n", addr, temp->name);
write(fd, buf, strlen(buf));
}
unlock:
flock(fd, LOCK_UN);
close:
close(fd);
name_free(list);
return err;
}
int write_link_key(const bdaddr_t *local, const bdaddr_t *peer, const unsigned char *key, const int type)
{
char filename[PATH_MAX + 1], addr[18];
int fd;
ba2str(local, addr);
snprintf(filename, PATH_MAX, "%s/%s/linkkeys", DEVPATH, addr);
umask(S_IWGRP | S_IWOTH);
create_dirs(filename, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
fd = open(filename, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
if (fd < 0)
return -errno;
close(fd);
return 0;
}
int read_link_key(const bdaddr_t *local, const bdaddr_t *peer, unsigned char *key)
{
return -ENOENT;
}
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