/*
* Find which interface to use.
*/
int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
{
ax25_route *ax25_rt;
ax25_address *call;
if ((ax25_rt = ax25_find_route(addr, NULL)) == NULL)
return -EHOSTUNREACH;
if ((ax25->ax25_dev = ax25_dev_ax25dev(ax25_rt->dev)) == NULL)
return -EHOSTUNREACH;
if ((call = ax25_findbyuid(current->euid)) == NULL) {
if (ax25_uid_policy && !suser())
return -EPERM;
call = (ax25_address *)ax25->ax25_dev->dev->dev_addr;
}
ax25->source_addr = *call;
if (ax25_rt->digipeat != NULL) {
if ((ax25->digipeat = kmalloc(sizeof(ax25_digi), GFP_ATOMIC)) == NULL)
return -ENOMEM;
*ax25->digipeat = *ax25_rt->digipeat;
ax25_adjust_path(addr, ax25->digipeat);
}
if (ax25->sk != NULL)
ax25->sk->zapped = 0;
return 0;
}
/*
* Find which interface to use.
*/
int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
{
ax25_uid_assoc *user;
ax25_route *ax25_rt;
int err = 0;
ax25_route_lock_use();
ax25_rt = ax25_get_route(addr, NULL);
if (!ax25_rt) {
ax25_route_lock_unuse();
return -EHOSTUNREACH;
}
if ((ax25->ax25_dev = ax25_dev_ax25dev(ax25_rt->dev)) == NULL) {
err = -EHOSTUNREACH;
goto put;
}
user = ax25_findbyuid(current_euid());
if (user) {
ax25->source_addr = user->call;
ax25_uid_put(user);
} else {
if (ax25_uid_policy && !capable(CAP_NET_BIND_SERVICE)) {
err = -EPERM;
goto put;
}
ax25->source_addr = *(ax25_address *)ax25->ax25_dev->dev->dev_addr;
}
if (ax25_rt->digipeat != NULL) {
ax25->digipeat = kmemdup(ax25_rt->digipeat, sizeof(ax25_digi),
GFP_ATOMIC);
if (ax25->digipeat == NULL) {
err = -ENOMEM;
goto put;
}
ax25_adjust_path(addr, ax25->digipeat);
}
if (ax25->sk != NULL) {
bh_lock_sock(ax25->sk);
sock_reset_flag(ax25->sk, SOCK_ZAPPED);
bh_unlock_sock(ax25->sk);
}
put:
ax25_route_lock_unuse();
return err;
}
/*
* Find which interface to use.
*/
int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
{
ax25_route *ax25_rt;
ax25_address *call;
int err;
if ((ax25_rt = ax25_get_route(addr, NULL)) == NULL)
return -EHOSTUNREACH;
if ((ax25->ax25_dev = ax25_dev_ax25dev(ax25_rt->dev)) == NULL) {
err = -EHOSTUNREACH;
goto put;
}
if ((call = ax25_findbyuid(current->euid)) == NULL) {
if (ax25_uid_policy && !capable(CAP_NET_BIND_SERVICE)) {
err = -EPERM;
goto put;
}
call = (ax25_address *)ax25->ax25_dev->dev->dev_addr;
}
ax25->source_addr = *call;
if (ax25_rt->digipeat != NULL) {
if ((ax25->digipeat = kmalloc(sizeof(ax25_digi), GFP_ATOMIC)) == NULL) {
err = -ENOMEM;
goto put;
}
memcpy(ax25->digipeat, ax25_rt->digipeat, sizeof(ax25_digi));
ax25_adjust_path(addr, ax25->digipeat);
}
if (ax25->sk != NULL) {
bh_lock_sock(ax25->sk);
ax25->sk->sk_zapped = 0;
bh_unlock_sock(ax25->sk);
}
put:
ax25_put_route(ax25_rt);
return 0;
}
