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/*
Copyright (C) 1995,96,97,99,2000,02,07,17 Free Software Foundation, Inc.
Written by Michael I. Bushnell, p/BSG.
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU Hurd. If not, see <http://www.gnu.org/licenses/>.
*/
#include <lwip-hurd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <error.h>
#include <fcntl.h>
#include <argp.h>
#include <sys/mman.h>
#include <hurd/trivfs.h>
#include <lwip_io_S.h>
#include <lwip_socket_S.h>
#include <lwip_pfinet_S.h>
#include <lwip_iioctl_S.h>
#include <lwip_startup_notify_S.h>
#include <netif/hurdethif.h>
#include <netif/hurdtunif.h>
#include <startup.h>
/* Translator initialization */
extern struct argp lwip_argp;
extern struct netif *netif_list;
int trivfs_fstype = FSTYPE_MISC;
int trivfs_fsid = 0;
int trivfs_support_read = 0;
int trivfs_support_write = 0;
int trivfs_support_exec = 0;
int trivfs_allow_open = O_READ | O_WRITE;
void
trivfs_modify_stat (struct trivfs_protid *cred, io_statbuf_t * st)
{
}
error_t
trivfs_goaway (struct trivfs_control *fsys, int flags)
{
if (flags & FSYS_GOAWAY_FORCE)
exit (0);
else
{
/* Stop new requests. */
ports_inhibit_class_rpcs (lwip_cntl_portclasses[0]);
ports_inhibit_class_rpcs (lwip_protid_portclasses[0]);
ports_inhibit_class_rpcs (lwip_cntl_portclasses[1]);
ports_inhibit_class_rpcs (lwip_protid_portclasses[1]);
ports_inhibit_class_rpcs (socketport_class);
ports_inhibit_class_rpcs (addrport_class);
if (ports_count_class (socketport_class) != 0
|| ports_count_class (addrport_class) != 0)
{
/* We won't go away, so start things going again... */
ports_resume_class_rpcs (addrport_class);
ports_resume_class_rpcs (socketport_class);
ports_resume_class_rpcs (lwip_cntl_portclasses[1]);
ports_resume_class_rpcs (lwip_protid_portclasses[1]);
ports_resume_class_rpcs (lwip_cntl_portclasses[0]);
ports_resume_class_rpcs (lwip_protid_portclasses[0]);
return EBUSY;
}
/* There are no sockets, so we can die without breaking anybody
too badly. We don't let user ports on the /servers/socket/2
file keep us alive because those get cached in every process
that ever makes a PF_INET socket, libc copes with getting
MACH_SEND_INVALID_DEST and looking up the new translator. */
exit (0);
}
}
int
lwip_demuxer (mach_msg_header_t * inp, mach_msg_header_t * outp)
{
struct port_info *pi;
mig_routine_t routine = NULL;
/* Clear errno to prevent raising previous errors again */
errno = 0;
/* We have several classes in one bucket, which need to be demuxed
differently. */
if (MACH_MSGH_BITS_LOCAL (inp->msgh_bits) ==
MACH_MSG_TYPE_PROTECTED_PAYLOAD)
pi = ports_lookup_payload (lwip_bucket,
inp->msgh_protected_payload, socketport_class);
else
pi = ports_lookup_port (lwip_bucket,
inp->msgh_local_port, socketport_class);
if (pi)
{
ports_port_deref (pi);
routine = lwip_io_server_routine (inp);
}
if (routine || (routine = lwip_socket_server_routine (inp)) ||
(routine = lwip_pfinet_server_routine (inp)) ||
(routine = lwip_iioctl_server_routine (inp)) ||
(routine = lwip_startup_notify_server_routine (inp)))
{
(*routine) (inp, outp);
return TRUE;
}
else
return trivfs_demuxer (inp, outp);
}
void
translator_bind (int portclass, const char *name)
{
struct trivfs_control *cntl;
error_t err = 0;
mach_port_t right;
file_t file = file_name_lookup (name, O_CREAT | O_NOTRANS, 0666);
if (file == MACH_PORT_NULL)
err = errno;
if (!err)
{
if (lwip_protid_portclasses[portclass] != MACH_PORT_NULL)
error (1, 0, "Cannot bind one protocol to multiple nodes.\n");
err =
trivfs_add_protid_port_class (&lwip_protid_portclasses[portclass]);
if (err)
error (1, 0, "error creating control port class");
err = trivfs_add_control_port_class (&lwip_cntl_portclasses[portclass]);
if (err)
error (1, 0, "error creating control port class");
err = trivfs_create_control (file, lwip_cntl_portclasses[portclass],
lwip_bucket,
lwip_protid_portclasses[portclass],
lwip_bucket, &cntl);
}
if (!err)
{
right = ports_get_send_right (cntl);
err = file_set_translator (file, 0, FS_TRANS_EXCL | FS_TRANS_SET,
0, 0, 0, right, MACH_MSG_TYPE_COPY_SEND);
mach_port_deallocate (mach_task_self (), right);
}
if (err)
error (1, err, "%s", name);
ports_port_deref (cntl);
}
int
main (int argc, char **argv)
{
error_t err;
struct stat st;
mach_port_t bootstrap;
lwip_bucket = ports_create_bucket ();
addrport_class = ports_create_class (clean_addrport, 0);
socketport_class = ports_create_class (clean_socketport, 0);
lwip_bootstrap_portclass = PORTCLASS_INET;
mach_port_allocate (mach_task_self (),
MACH_PORT_RIGHT_RECEIVE, &fsys_identity);
/* Init the device modules */
hurdethif_module_init ();
hurdtunif_module_init ();
/* Parse options. When successful, this configures the interfaces
before returning */
argp_parse (&lwip_argp, argc, argv, 0, 0, 0);
task_get_bootstrap_port (mach_task_self (), &bootstrap);
if (bootstrap == MACH_PORT_NULL)
error (-1, 0, "Must be started as a translator");
/* Create portclass to install on the bootstrap port. */
if (lwip_protid_portclasses[lwip_bootstrap_portclass] != MACH_PORT_NULL)
error (1, 0, "No portclass left to assign to bootstrap port");
err =
trivfs_add_protid_port_class (&lwip_protid_portclasses
[lwip_bootstrap_portclass]);
if (err)
error (1, 0, "error creating control port class");
err =
trivfs_add_control_port_class (&lwip_cntl_portclasses
[lwip_bootstrap_portclass]);
if (err)
error (1, 0, "error creating control port class");
/* Reply to our parent */
err = trivfs_startup (bootstrap, 0,
lwip_cntl_portclasses[lwip_bootstrap_portclass],
lwip_bucket,
lwip_protid_portclasses[lwip_bootstrap_portclass],
lwip_bucket, &lwipcntl);
mach_port_deallocate (mach_task_self (), bootstrap);
if (err)
{
return (-1);
}
/* Initialize status from underlying node. */
lwip_owner = lwip_group = 0;
err = io_stat (lwipcntl->underlying, &st);
if (!err)
{
lwip_owner = st.st_uid;
lwip_group = st.st_gid;
}
/* Ask init to tell us when the system is going down,
so we can try to be friendly to our correspondents on the network. */
arrange_shutdown_notification ();
ports_manage_port_operations_multithread (lwip_bucket, lwip_demuxer,
30 * 1000, 2 * 60 * 1000, 0);
return 0;
}
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