int ethernet_open (char *dev_name, device_t master_device,
struct port_bucket *etherport_bucket,
struct port_class *etherreadclass)
{
error_t err;
assert (ether_port == MACH_PORT_NULL);
err = ports_create_port (etherreadclass, etherport_bucket,
sizeof (struct port_info), &readpt);
if (err)
error (2, err, "ports_create_port");
readptname = ports_get_right (readpt);
mach_port_insert_right (mach_task_self (), readptname, readptname,
MACH_MSG_TYPE_MAKE_SEND);
mach_port_set_qlimit (mach_task_self (), readptname, MACH_PORT_QLIMIT_MAX);
err = device_open (master_device, D_WRITE | D_READ, "eth", ðer_port);
mach_port_deallocate (mach_task_self (), master_device);
if (err)
error (2, err, "device_open: %s", dev_name);
err = device_set_filter (ether_port, ports_get_right (readpt),
MACH_MSG_TYPE_MAKE_SEND, 0,
(unsigned short *)ether_filter, ether_filter_len);
if (err)
error (2, err, "device_set_filter: %s", dev_name);
set_promisc (dev_name, ether_port, 1);
return 0;
}
int
ethernet_open (struct device *dev)
{
error_t err;
device_t master_device;
struct ether_device *edev = (struct ether_device *) dev->priv;
assert (edev->ether_port == MACH_PORT_NULL);
err = ports_create_port (etherreadclass, etherport_bucket,
sizeof (struct port_info), &edev->readpt);
assert_perror (err);
edev->readptname = ports_get_right (edev->readpt);
mach_port_insert_right (mach_task_self (), edev->readptname, edev->readptname,
MACH_MSG_TYPE_MAKE_SEND);
mach_port_set_qlimit (mach_task_self (), edev->readptname, MACH_PORT_QLIMIT_MAX);
master_device = file_name_lookup (dev->name, O_READ | O_WRITE, 0);
if (master_device != MACH_PORT_NULL)
{
/* The device name here is the path of a device file. */
err = device_open (master_device, D_WRITE | D_READ, "eth", &edev->ether_port);
mach_port_deallocate (mach_task_self (), master_device);
if (err)
error (2, err, "device_open on %s", dev->name);
err = device_set_filter (edev->ether_port, ports_get_right (edev->readpt),
MACH_MSG_TYPE_MAKE_SEND, 0,
bpf_ether_filter, bpf_ether_filter_len);
if (err)
error (2, err, "device_set_filter on %s", dev->name);
}
else
{
/* No, perhaps a Mach device? */
int file_errno = errno;
err = get_privileged_ports (0, &master_device);
if (err)
{
error (0, file_errno, "file_name_lookup %s", dev->name);
error (2, err, "and cannot get device master port");
}
err = device_open (master_device, D_WRITE | D_READ, dev->name, &edev->ether_port);
mach_port_deallocate (mach_task_self (), master_device);
if (err)
{
error (0, file_errno, "file_name_lookup %s", dev->name);
error (2, err, "device_open(%s)", dev->name);
}
err = device_set_filter (edev->ether_port, ports_get_right (edev->readpt),
MACH_MSG_TYPE_MAKE_SEND, 0,
ether_filter, ether_filter_len);
if (err)
error (2, err, "device_set_filter on %s", dev->name);
}
return 0;
}
/* Create a sock_user structure, initialized from SOCK and ISROOT.
If NOINSTALL is set, don't put it in the portset.
We increment SOCK->refcnt iff CONSUME is zero. */
struct sock_user *
make_sock_user (struct socket *sock, int isroot, int noinstall, int consume)
{
error_t err;
struct sock_user *user;
assert (sock->refcnt != 0);
if (noinstall)
err = ports_create_port_noinstall (socketport_class, pfinet_bucket,
sizeof (struct sock_user), &user);
else
err = ports_create_port (socketport_class, pfinet_bucket,
sizeof (struct sock_user), &user);
if (err)
return 0;
/* We maintain a reference count in `struct socket' (a member not
in the original Linux structure), because there can be multiple
ports (struct sock_user, aka protids) pointing to the same socket.
The socket lives until all the ports die. */
if (! consume)
++sock->refcnt;
user->isroot = isroot;
user->sock = sock;
return user;
}
void
arrange_shutdown_notification ()
{
error_t err;
mach_port_t initport, notify;
struct port_info *pi;
shutdown_notify_class = ports_create_class (0, 0);
signal (SIGTERM, sigterm_handler);
/* Arrange to get notified when the system goes down,
but if we fail for some reason, just silently give up. No big deal. */
err = ports_create_port (shutdown_notify_class, pfinet_bucket,
sizeof (struct port_info), &pi);
if (err)
return;
initport = file_name_lookup (_SERVERS_STARTUP, 0, 0);
if (initport == MACH_PORT_NULL)
return;
notify = ports_get_send_right (pi);
ports_port_deref (pi);
startup_request_notification (initport, notify,
MACH_MSG_TYPE_MAKE_SEND,
program_invocation_short_name);
mach_port_deallocate (mach_task_self (), notify);
mach_port_deallocate (mach_task_self (), initport);
}
error_t
fshelp_get_identity (struct port_bucket *bucket,
ino_t fileno,
mach_port_t *pt)
{
struct idspec *i;
error_t err = 0;
error_t check_port (void *arg)
{
struct idspec *i = arg;
if (i->fileno == fileno)
{
*pt = ports_get_right (i);
return 1;
}
else
return 0;
}
mutex_lock (&idlock);
if (!idclass)
id_initialize ();
*pt = MACH_PORT_NULL;
ports_class_iterate (idclass, check_port);
if (*pt != MACH_PORT_NULL)
{
mutex_unlock (&idlock);
return 0;
}
err = ports_create_port (idclass, bucket, sizeof (struct idspec), &i);
if (err)
{
mutex_unlock (&idlock);
return err;
}
i->fileno = fileno;
*pt = ports_get_right (i);
ports_port_deref (i);
mutex_unlock (&idlock);
return 0;
}
/* Establish a thread to sync the filesystem every INTERVAL seconds, or
never, if INTERVAL is zero. If an error occurs creating the thread, it is
returned, otherwise 0. Subsequent calls will create a new thread and
(eventually) get rid of the old one; the old thread won't do any more
syncs, regardless. */
error_t
diskfs_set_sync_interval (int interval)
{
error_t err = 0;
if (! pi)
{
err = ports_create_port (diskfs_control_class, diskfs_port_bucket,
sizeof (struct port_info), &pi);
if (err)
return err;
}
err = ports_inhibit_port_rpcs (pi);
if (err)
return err;
/* Here we just set the new thread; any existing thread will notice when it
wakes up and go away silently. */
if (interval == 0)
periodic_sync_thread = 0;
else
{
periodic_sync_thread =
cthread_fork ((cthread_fn_t)periodic_sync, (any_t)(intptr_t)interval);
if (periodic_sync_thread)
cthread_detach (periodic_sync_thread);
else
err = ENOMEM;
}
if (!err)
diskfs_sync_interval = interval;
ports_resume_port_rpcs (pi);
return err;
}
kern_return_t
trivfs_S_io_restrict_auth (struct trivfs_protid *cred,
mach_port_t reply,
mach_msg_type_name_t replytype,
mach_port_t *newport,
mach_msg_type_name_t *newporttype,
uid_t *uids, size_t nuids,
uid_t *gids, size_t ngids)
{
int i;
error_t err;
struct trivfs_protid *newcred;
struct idvec *uvec, *gvec;
struct iouser *user;
if (!cred)
return EOPNOTSUPP;
if (cred->isroot)
/* CRED has root access, and so may use any ids. */
{
err = iohelp_create_complex_iouser (&user, uids, nuids, gids, ngids);
if (err)
return err;
}
else
{
uvec = make_idvec ();
if (! uvec)
return ENOMEM;
gvec = make_idvec ();
if (! gvec)
{
idvec_free (uvec);
return ENOMEM;
}
/* Otherwise, use any of the requested ids that CRED already has. */
for (i = 0; i < cred->user->uids->num; i++)
if (listmember (uids, cred->user->uids->ids[i], nuids))
{
err = idvec_add (uvec, cred->user->uids->ids[i]);
if (err)
goto out;
}
for (i = 0; i < cred->user->gids->num; i++)
if (listmember (gids, cred->user->gids->ids[i], ngids))
{
err = idvec_add (gvec, cred->user->gids->ids[i]);
if (err)
goto out;
}
err = iohelp_create_iouser (&user, uvec, gvec);
if (err)
{
out:
idvec_free (uvec);
idvec_free (gvec);
return err;
}
}
err = ports_create_port (cred->po->cntl->protid_class,
cred->po->cntl->protid_bucket,
sizeof (struct trivfs_protid),
&newcred);
if (err)
{
iohelp_free_iouser (user);
return err;
}
newcred->isroot = 0;
mutex_lock (&cred->po->cntl->lock);
newcred->po = cred->po;
newcred->po->refcnt++;
mutex_unlock (&cred->po->cntl->lock);
if (cred->isroot && idvec_contains (user->uids, 0))
newcred->isroot = 1;
newcred->user = user;
newcred->hook = cred->hook;
err = io_restrict_auth (cred->realnode, &newcred->realnode,
user->uids->ids, user->uids->num,
user->gids->ids, user->gids->num);
if (!err && trivfs_protid_create_hook)
{
err = (*trivfs_protid_create_hook) (newcred);
if (err)
mach_port_deallocate (mach_task_self (), newcred->realnode);
}
if (err)
/* Signal that the user destroy hook shouldn't be called on NEWCRED. */
newcred->realnode = MACH_PORT_NULL;
else
{
*newport = ports_get_right (newcred);
*newporttype = MACH_MSG_TYPE_MAKE_SEND;
}
/* This will destroy NEWCRED if we got an error and didn't do the
ports_get_right above. */
ports_port_deref (newcred);
return 0;
}
int
main (int argc, char **argv, char **envp)
{
mach_port_t boot;
error_t err;
void *genport;
process_t startup_port;
mach_port_t startup;
struct argp argp = { 0, 0, 0, "Hurd process server" };
argp_parse (&argp, argc, argv, 0, 0, 0);
initialize_version_info ();
err = task_get_bootstrap_port (mach_task_self (), &boot);
assert_perror (err);
if (boot == MACH_PORT_NULL)
error (2, 0, "proc server can only be run by init during boot");
proc_bucket = ports_create_bucket ();
proc_class = ports_create_class (0, 0);
generic_port_class = ports_create_class (0, 0);
exc_class = ports_create_class (exc_clean, 0);
ports_create_port (generic_port_class, proc_bucket,
sizeof (struct port_info), &genport);
generic_port = ports_get_right (genport);
/* Create the initial proc object for init (PID 1). */
init_proc = create_init_proc ();
/* Create the startup proc object for /hurd/init (PID 2). */
startup_proc = allocate_proc (MACH_PORT_NULL);
startup_proc->p_deadmsg = 1;
complete_proc (startup_proc, HURD_PID_STARTUP);
/* Create our own proc object. */
self_proc = allocate_proc (mach_task_self ());
assert (self_proc);
complete_proc (self_proc, HURD_PID_PROC);
startup_port = ports_get_send_right (startup_proc);
err = startup_procinit (boot, startup_port, &startup_proc->p_task,
&authserver, &_hurd_host_priv, &_hurd_device_master);
assert_perror (err);
mach_port_deallocate (mach_task_self (), startup_port);
mach_port_mod_refs (mach_task_self (), authserver, MACH_PORT_RIGHT_SEND, 1);
_hurd_port_set (&_hurd_ports[INIT_PORT_AUTH], authserver);
mach_port_deallocate (mach_task_self (), boot);
proc_death_notify (startup_proc);
add_proc_to_hash (startup_proc); /* Now that we have the task port. */
/* Set our own argv and envp locations. */
self_proc->p_argv = (vm_address_t) argv;
self_proc->p_envp = (vm_address_t) envp;
/* Give ourselves good scheduling performance, because we are so
important. */
err = increase_priority ();
if (err)
error (0, err, "Increasing priority failed");
#if 0
err = register_new_task_notification (_hurd_host_priv,
generic_port,
MACH_MSG_TYPE_MAKE_SEND);
if (err)
error (0, err, "Registering task notifications failed");
#endif
{
/* Get our stderr set up to print on the console, in case we have
to panic or something. */
mach_port_t cons;
error_t err;
err = device_open (_hurd_device_master, D_READ|D_WRITE, "console", &cons);
assert_perror (err);
stdin = mach_open_devstream (cons, "r");
stdout = stderr = mach_open_devstream (cons, "w");
mach_port_deallocate (mach_task_self (), cons);
}
startup = file_name_lookup (_SERVERS_STARTUP, 0, 0);
if (MACH_PORT_VALID (startup))
{
err = startup_essential_task (startup, mach_task_self (),
MACH_PORT_NULL, "proc", _hurd_host_priv);
if (err)
/* Due to the single-threaded nature of /hurd/startup, it can
only handle requests once the core server bootstrap has
completed. Therefore, it does not bind itself to
/servers/startup until it is ready. */
/* Fall back to abusing the message port lookup. */
startup_fallback = 1;
err = mach_port_deallocate (mach_task_self (), startup);
assert_perror (err);
}
else
/* Fall back to abusing the message port lookup. */
startup_fallback = 1;
while (1)
ports_manage_port_operations_multithread (proc_bucket,
message_demuxer,
0, 0, 0);
}
/* Create a new trivfs control port, with underlying node UNDERLYING, and
return it in CONTROL. CONTROL_CLASS & CONTROL_BUCKET are passed to
the ports library to create the control port, and PROTID_CLASS &
PROTID_BUCKET are used when creating ports representing opens of this
node. */
error_t
trivfs_create_control (mach_port_t underlying,
struct port_class *control_class,
struct port_bucket *control_bucket,
struct port_class *protid_class,
struct port_bucket *protid_bucket,
struct trivfs_control **control)
{
error_t err;
/* Perhaps allocate, and perhaps add the specified port classes the ones
recognized by trivfs. */
err = trivfs_add_control_port_class (&control_class);
if (! err)
err = trivfs_add_protid_port_class (&protid_class);
else
protid_class = 0;
/* Perhaps allocate new port buckets. */
if (! err)
err = trivfs_add_port_bucket (&control_bucket);
else
control_bucket = 0;
if (! err)
{
if (! protid_bucket)
/* By default, use the same port bucket for both. */
protid_bucket = control_bucket;
err = trivfs_add_port_bucket (&protid_bucket);
}
else
protid_bucket = 0;
if (! err)
err = ports_create_port (control_class, control_bucket,
sizeof (struct trivfs_control), control);
if (! err)
{
(*control)->underlying = underlying;
(*control)->protid_class = protid_class;
(*control)->protid_bucket = protid_bucket;
err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
&(*control)->filesys_id);
if (err)
{
ports_port_deref (*control);
goto out;
}
err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
&(*control)->file_id);
if (err)
{
mach_port_destroy (mach_task_self (), (*control)->filesys_id);
ports_port_deref (*control);
goto out;
}
(*control)->hook = 0;
mutex_init (&(*control)->lock);
}
out:
if (err)
{
trivfs_remove_control_port_class (control_class);
trivfs_remove_protid_port_class (protid_class);
trivfs_remove_port_bucket (control_bucket);
trivfs_remove_port_bucket (protid_bucket);
}
return err;
}
int
main (int argc, char **argv, char **envp)
{
mach_port_t boot;
error_t err;
mach_port_t pset, psetcntl;
void *genport;
process_t startup_port;
struct argp argp = { 0, 0, 0, "Hurd process server" };
argp_parse (&argp, argc, argv, 0, 0, 0);
initialize_version_info ();
err = task_get_bootstrap_port (mach_task_self (), &boot);
assert_perror (err);
if (boot == MACH_PORT_NULL)
error (2, 0, "proc server can only be run by init during boot");
proc_bucket = ports_create_bucket ();
proc_class = ports_create_class (0, 0);
generic_port_class = ports_create_class (0, 0);
exc_class = ports_create_class (exc_clean, 0);
ports_create_port (generic_port_class, proc_bucket,
sizeof (struct port_info), &genport);
generic_port = ports_get_right (genport);
/* Create the initial proc object for init (PID 1). */
startup_proc = create_startup_proc ();
/* Create our own proc object (we are PID 0). */
self_proc = allocate_proc (mach_task_self ());
assert (self_proc);
complete_proc (self_proc, 0);
startup_port = ports_get_send_right (startup_proc);
err = startup_procinit (boot, startup_port, &startup_proc->p_task,
&authserver, &master_host_port, &master_device_port);
assert_perror (err);
mach_port_deallocate (mach_task_self (), startup_port);
mach_port_mod_refs (mach_task_self (), authserver, MACH_PORT_RIGHT_SEND, 1);
_hurd_port_set (&_hurd_ports[INIT_PORT_AUTH], authserver);
mach_port_deallocate (mach_task_self (), boot);
proc_death_notify (startup_proc);
add_proc_to_hash (startup_proc); /* Now that we have the task port. */
/* Set our own argv and envp locations. */
self_proc->p_argv = (vm_address_t) argv;
self_proc->p_envp = (vm_address_t) envp;
/* Give ourselves good scheduling performance, because we are so
important. */
err = thread_get_assignment (mach_thread_self (), &pset);
assert_perror (err);
err = host_processor_set_priv (master_host_port, pset, &psetcntl);
assert_perror (err);
thread_max_priority (mach_thread_self (), psetcntl, 0);
assert_perror (err);
err = task_priority (mach_task_self (), 2, 1);
assert_perror (err);
mach_port_deallocate (mach_task_self (), pset);
mach_port_deallocate (mach_task_self (), psetcntl);
{
/* Get our stderr set up to print on the console, in case we have
to panic or something. */
mach_port_t cons;
error_t err;
err = device_open (master_device_port, D_READ|D_WRITE, "console", &cons);
assert_perror (err);
stdin = mach_open_devstream (cons, "r");
stdout = stderr = mach_open_devstream (cons, "w");
mach_port_deallocate (mach_task_self (), cons);
}
while (1)
ports_manage_port_operations_multithread (proc_bucket,
message_demuxer,
0, 0, 0);
}