From f311cedf0b66b77f375fee514c0861b4605f4c59 Mon Sep 17 00:00:00 2001 From: Miles Bader Date: Mon, 6 Nov 1995 20:18:30 +0000 Subject: Initial revision --- libdiskfs/file-get-fs-opts.c | 51 ++++++++++++++++++++++++ libdiskfs/init-completed.c | 32 +++++++++++++++ libdiskfs/machdev.c | 92 ++++++++++++++++++++++++++++++++++++++++++++ libdiskfs/opts-get.c | 58 ++++++++++++++++++++++++++++ 4 files changed, 233 insertions(+) create mode 100644 libdiskfs/file-get-fs-opts.c create mode 100644 libdiskfs/init-completed.c create mode 100644 libdiskfs/machdev.c create mode 100644 libdiskfs/opts-get.c (limited to 'libdiskfs') diff --git a/libdiskfs/file-get-fs-opts.c b/libdiskfs/file-get-fs-opts.c new file mode 100644 index 00000000..9844801e --- /dev/null +++ b/libdiskfs/file-get-fs-opts.c @@ -0,0 +1,51 @@ +/* Get run-time file system options + + Copyright (C) 1995 Free Software Foundation, Inc. + + Written by Miles Bader + + 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include + +#include "priv.h" + +error_t +diskfs_S_file_get_fs_options (struct protid *cred, + char **data, unsigned *data_len) +{ + error_t err; + char *argz; + + if (!cred) + return EOPNOTSUPP; + + rwlock_reader_lock (&diskfs_fsys_lock); + err = diskfs_get_options (&argz, data_len); + rwlock_reader_unlock (&diskfs_fsys_lock); + + if (!err) + /* Move ARGZ from a malloced buffer into a vm_alloced one. */ + { + err = vm_allocate (mach_task_self (), (vm_address_t *)data, data_len, 1); + if (!err) + bcopy (argz, *data, *data_len); + free (argz); + } + + return err; +} diff --git a/libdiskfs/init-completed.c b/libdiskfs/init-completed.c new file mode 100644 index 00000000..cbb94e3b --- /dev/null +++ b/libdiskfs/init-completed.c @@ -0,0 +1,32 @@ +/* Function called when we're done initializing at boot time + + Copyright (C) 1994, 1995 Free Software Foundation, Inc. + + Written by Miles Bader + + This program 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. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include + +#include + +#include "diskfs.h" + +/* Called by diskfs_start_bootstrap, after the filesystem has a normal + environment (complete with auth and proc ports). */ +void +diskfs_init_completed () +{ +} diff --git a/libdiskfs/machdev.c b/libdiskfs/machdev.c new file mode 100644 index 00000000..786bf0ab --- /dev/null +++ b/libdiskfs/machdev.c @@ -0,0 +1,92 @@ +/* Get mach device info + + Copyright (C) 1995 Free Software Foundation, Inc. + + Written by Miles Bader + + This program 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. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include + +#include + +#include "priv.h" + +/* Returns a send right to for the mach device called NAME, and returns it in + PORT. Other values returned are START, the first valid offset, SIZE, the + the number of blocks after START, and BLOCK_SIZE, the units in which the + device is addressed. + + The device is opened for reading, and if the diskfs global variable + DISKFS_READ_ONLY is false, writing. + + If NAME cannot be opened and this is a bootstrap filename, the user will + be prompted for new names until a valid one is found. */ +error_t +diskfs_get_mach_device (char *name, + mach_port_t *port, + off_t *start, off_t *size, size_t *block_size) +{ + error_t err = 0; + + do + { + mach_port_t dev_master; + + err = get_privileged_ports (0, &dev_master); + if (err) + return err; + + err = device_open (dev_master, + (diskfs_readonly ? 0 : D_WRITE) | D_READ, + name, port); + + if (err == D_NO_SUCH_DEVICE && diskfs_boot_flags) + /* If this is a bootstrap filesystem, prompt the user to give us + another name rather than just crashing. */ + { + char *line = 0; + size_t linesz = 0; + ssize_t len; + + printf ("Cannot open device %s\n", name); + printf ("Open instead: "); + fflush (stdout); + len = getline (&line, &linesz, stdin); + if (len > 2) + name = line; + } + + mach_port_deallocate (mach_task_self (), dev_master); + } + while (err == D_NO_SUCH_DEVICE && diskfs_boot_flags); + + if (!err) + { + unsigned sizes_len = DEV_GET_SIZE_COUNT; + size_t sizes[DEV_GET_SIZE_COUNT]; + + err = device_get_status (*port, DEV_GET_SIZE, sizes, &sizes_len); + assert (sizes_len == DEV_GET_SIZE_COUNT); + + *start = 0; + *size = sizes[DEV_GET_SIZE_DEVICE_SIZE]; + *block_size = sizes[DEV_GET_SIZE_RECORD_SIZE]; + if (*block_size > 1) + *size /= *block_size; + } + + return err; +} diff --git a/libdiskfs/opts-get.c b/libdiskfs/opts-get.c new file mode 100644 index 00000000..3d84b372 --- /dev/null +++ b/libdiskfs/opts-get.c @@ -0,0 +1,58 @@ +/* Get run-time options + + Copyright (C) 1995 Free Software Foundation, Inc. + + Written by Miles Bader + + 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "priv.h" + +error_t +diskfs_get_options (char **argz, unsigned *argz_len) +{ + extern int diskfs_sync_interval; + + void append_opt (char *str) + { + unsigned old_end = *argz_len; + *argz_len += strlen (str) + 1; + *argz = realloc (*argz, *argz_len); + strcpy (*argz + old_end, str);; + } + + *argz = 0; + *argz_len = 0; + + if (diskfs_readonly) + append_opt ("--readonly"); + else + append_opt ("--writable"); + + if (diskfs_synchronous) + append_opt ("--sync"); + else if (diskfs_sync_interval == 0) + append_opt ("--nosync"); + else + { + char buf[80]; + sprintf (buf, "--sync=%d", diskfs_sync_interval); + append_opt (buf); + } + + return 0; +} -- cgit v1.2.3