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#include <sys/stat.h>
#include <netbt/hci.h>
#include <assert.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include "btd.h"
typedef enum {
DB_DEVINFO,
DB_LINK_KEY
} db_type;
typedef struct {
bdaddr_t addr;
db_type type;
} db_key;
int db_put(struct btd_db *, db_key *, const void *, size_t);
int db_get_raw(struct btd_db *, db_key *, void **, size_t *);
int db_get_exact(struct btd_db *, db_key *, void *, size_t);
void
db_open(const char *file, struct btd_db *db)
{
assert(db->dbh == NULL);
db->dbh = dbopen(file, O_CREAT | O_EXLOCK | O_RDWR,
S_IRUSR | S_IWUSR, DB_HASH, NULL);
if (db->dbh == NULL)
fatal(file);
}
int
db_put(struct btd_db *db, db_key *key, const void *data, size_t size)
{
DB *dbh = db->dbh;
DBT dbk, dbd;
memset(&dbk, 0, sizeof(dbk));
dbk.size = sizeof(db_key);
dbk.data = (void *)key;
memset(&dbd, 0, sizeof(dbd));
dbd.size = size;
dbd.data = (void*)data;
if (dbh->put(dbh, &dbk, &dbd, 0)) {
log_warn("db_put");
return -1;
}
if (dbh->sync(dbh, 0)) {
log_warn("db_sync");
return -1;
}
return 0;
}
int
db_get_raw(struct btd_db *db, db_key *key, void **data, size_t *size)
{
DB *dbh = db->dbh;
DBT dbk, dbd;
int res;
memset(&dbk, 0, sizeof(dbk));
dbk.size = sizeof(db_key);
dbk.data = (void *)key;
memset(&dbd, 0, sizeof(dbd));
if ((res = dbh->get(dbh, &dbk, &dbd, 0)) != 0) {
if (res == -1)
log_warn("db_get");
return res;
}
*data = dbd.data;
*size = dbd.size;
return 0;
}
int
db_get_exact(struct btd_db *db, db_key *key, void *data, size_t size)
{
void *d;
size_t dlen;
int res;
if ((res = db_get_raw(db, key, &d, &dlen)) == 0) {
if (dlen != size) {
log_warnx("data size mismatch for key type %#x"
" (%u != %u)", key->type, dlen, size);
return -1;
}
memcpy(data, d, size);
}
return res;
}
int
db_put_link_key(struct btd_db *db, const bdaddr_t *addr,
const uint8_t *link_key)
{
db_key key;
memset(&key, 0, sizeof(key));
bdaddr_copy(&key.addr, addr);
key.type = DB_LINK_KEY;
return db_put(db, &key, link_key, HCI_KEY_SIZE);
}
int
db_get_link_key(struct btd_db *db, const bdaddr_t *addr, uint8_t *link_key)
{
db_key key;
memset(&key, 0, sizeof(key));
bdaddr_copy(&key.addr, addr);
key.type = DB_LINK_KEY;
return db_get_exact(db, &key, link_key, HCI_KEY_SIZE);
}
int
db_put_devinfo(struct btd_db *db, const bdaddr_t *addr,
const struct bt_devinfo *info)
{
db_key key;
void *data;
size_t size;
int res;
memset(&key, 0, sizeof(key));
bdaddr_copy(&key.addr, addr);
key.type = DB_DEVINFO;
if (devinfo_store(info, &data, &size))
return -1;
res = db_put(db, &key, data, size);
free(data);
return res;
}
int
db_get_devinfo(struct btd_db *db, const bdaddr_t *addr,
struct bt_devinfo *info)
{
db_key key;
void *data;
size_t size;
int res;
memset(&key, 0, sizeof(key));
bdaddr_copy(&key.addr, addr);
key.type = DB_DEVINFO;
if ((res = db_get_raw(db, &key, &data, &size)) == 0 &&
devinfo_load(info, data, size))
res = -1;
return res;
}
void
db_dump(struct btd_db *db)
{
struct bt_devinfo info;
DB *dbh = db->dbh;
DBT dbk, dbd;
if (dbh->seq(dbh, &dbk, &dbd, R_FIRST) != 0)
return;
do {
db_key *key = dbk.data;
if (dbk.size != sizeof(db_key))
fatalx("invalid db key");
switch (key->type) {
case DB_LINK_KEY:
log_info("%s link_key", bt_ntoa(&key->addr, NULL));
break;
case DB_DEVINFO:
log_info("%s devinfo", bt_ntoa(&key->addr, NULL));
if (db_get_devinfo(db, &key->addr, &info) == 0) {
devinfo_dump(&info);
devinfo_unload(&info);
}
break;
default:
fatalx("invalid db key type");
}
}
while (dbh->seq(dbh, &dbk, &dbd, R_NEXT) == 0);
}
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