diff options
Diffstat (limited to 'eth-multiplexer/multiplexer.c')
| -rw-r--r-- | eth-multiplexer/multiplexer.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/eth-multiplexer/multiplexer.c b/eth-multiplexer/multiplexer.c deleted file mode 100644 index 3ea1408c..00000000 --- a/eth-multiplexer/multiplexer.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - Copyright (C) 2008 Free Software Foundation, Inc. - Written by Zheng Da. - - 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; see the file COPYING. If not, write to - the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -/* - * The multiplexer server provides the virtual network interface. - * When it gets a packet, it forwards it to every other network interface, - * the ones that are created by itself or that it connects to. - * BPF is ported to the multiplexer to help deliver packets - * to the right pfinet. - */ - -#include <argz.h> -#include <argp.h> -#include <errno.h> -#include <error.h> -#include <stdlib.h> -#include <fcntl.h> - -#include <hurd.h> -#include <mach.h> -#include <version.h> -#include <device/device.h> -#include <hurd/ports.h> -#include <hurd/netfs.h> - -#include "ethernet.h" -#include "vdev.h" -#include "ourdevice_S.h" -#include "notify_S.h" -#include "bpf_impl.h" -#include "netfs_impl.h" -#include "util.h" - -/* The device which the multiplexer connects to */ -static char *device_file; - -const char *argp_program_version = "eth-multiplexer 0.1"; -const char *argp_program_bug_address = "<bug-hurd@gnu.org>"; -static const char doc[] = "Hurd multiplexer server."; -static const struct argp_option options[] = -{ - {"interface", 'i', "DEVICE", 0, - "Network interface to use", 2}, - {0} -}; - -/* Port bucket we service requests on. */ -struct port_bucket *port_bucket; -struct port_class *other_portclass; -struct port_class *vdev_portclass; -struct port_info *notify_pi; - -int netfs_maxsymlinks = 12; -char *netfs_server_name = "multiplexer"; -char *netfs_server_version = HURD_VERSION; -file_t root_file; -struct lnode root; -struct stat underlying_node_stat; - -static int -multiplexer_demuxer (mach_msg_header_t *inp, - mach_msg_header_t *outp) -{ - int device_server (mach_msg_header_t *, mach_msg_header_t *); - int notify_server (mach_msg_header_t *, mach_msg_header_t *); - - return (device_server (inp, outp) - || notify_server (inp, outp) - || ethernet_demuxer (inp, outp)); -} - -static any_t -multiplexer_thread (any_t arg) -{ - ports_manage_port_operations_one_thread (port_bucket, - multiplexer_demuxer, - 0); - return 0; -} - -static error_t -parse_opt (int opt, char *arg, struct argp_state *state) -{ - switch (opt) - { - case 'i': - device_file = arg; - break; - case ARGP_KEY_ERROR: - case ARGP_KEY_SUCCESS: - case ARGP_KEY_INIT: - break; - default: - return ARGP_ERR_UNKNOWN; - } - return 0; -} - -int -main (int argc, char *argv[]) -{ - error_t err; - mach_port_t bootstrap; - mach_port_t master_device; - const struct argp argp = { options, parse_opt, 0, doc }; - - port_bucket = ports_create_bucket (); - other_portclass = ports_create_class (0, 0); - vdev_portclass = ports_create_class (destroy_vdev, 0); - - argp_parse (&argp, argc, argv, 0, 0, 0); - - /* Open the network interface. */ - if (device_file) - { - master_device = file_name_lookup (device_file, 0, 0); - if (master_device == MACH_PORT_NULL) - error (1, errno, "file_name_lookup"); - - ethernet_open (device_file, master_device, port_bucket, - other_portclass); - } - - /* Prepare for the notification. */ - err = ports_create_port (other_portclass, port_bucket, - sizeof (struct port_info), ¬ify_pi); - if (err) - error (1, err, "ports_create_port for notification"); - - task_get_bootstrap_port (mach_task_self (), &bootstrap); - if (bootstrap == MACH_PORT_NULL) - error (1, 0, "must be started as a translator"); - - /* Run the multiplexer server in another thread. */ - cthread_detach (cthread_fork (multiplexer_thread, 0)); - - err = maptime_map (0, 0, &multiplexer_maptime); - if (err) - error (4, err, "Cannot map time"); - - /* Initialize netfs and start the translator. */ - netfs_init (); - - root_file = netfs_startup (bootstrap, O_READ); - err = new_node (&root, &netfs_root_node); - if (err) - error (5, err, "Cannot create root node"); - - err = io_stat (root_file, &underlying_node_stat); - if (err) - error (6, err, "Cannot stat underlying node"); - - struct stat stat = underlying_node_stat; - /* If the underlying node is not a directory, increase its permissions */ - if(!S_ISDIR(stat.st_mode)) - { - if(stat.st_mode & S_IRUSR) - stat.st_mode |= S_IXUSR; - if(stat.st_mode & S_IRGRP) - stat.st_mode |= S_IXGRP; - if(stat.st_mode & S_IROTH) - stat.st_mode |= S_IXOTH; - } - - stat.st_mode &= ~(S_ITRANS | S_IFMT); - stat.st_mode |= S_IFDIR; - netfs_root_node->nn->ln->st = stat; - fshelp_touch (&netfs_root_node->nn_stat, TOUCH_ATIME|TOUCH_MTIME|TOUCH_CTIME, - multiplexer_maptime); - - netfs_server_loop (); /* Never returns. */ - return 0; -} - -error_t -netfs_append_args (char **argz, size_t *argz_len) -{ - error_t err = 0; - -#define ADD_OPT(fmt, args...) \ - do { char buf[100]; \ - if (! err) { \ - snprintf (buf, sizeof buf, fmt , ##args); \ - err = argz_add (argz, argz_len, buf); } } while (0) - if (device_file) - ADD_OPT ("--interface=%s", device_file); -#undef ADD_OPT - return err; -} |