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Import 4.4BSD-Lite2 onto the vendor branch, note that in the kernel, all

Browse Source 
files are off the vendor branch, so this should not change anything.

A "U" marker generally means that the file was not changed in between
the 4.4Lite and Lite-2 releases, and does not need a merge.  "C" generally
means that there was a change.
This commit is contained in:
Peter Wemm 1996-03-11 19:17:01 +00:00
parent 6889b16a1c
commit c2f4655726
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/CSRG/dist/; revision=14551
4 changed files with 1216 additions and 0 deletions
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isofs/cd9660/cd9660_bmap.c optional cd9660
isofs/cd9660/cd9660_lookup.c optional cd9660
isofs/cd9660/cd9660_node.c optional cd9660
isofs/cd9660/cd9660_rrip.c optional cd9660
isofs/cd9660/cd9660_util.c optional cd9660
isofs/cd9660/cd9660_vfsops.c optional cd9660
isofs/cd9660/cd9660_vnops.c optional cd9660
kdb/kdb_access.c optional kadb
kdb/kdb_command.c optional kadb
kdb/kdb_ctype.c optional kadb
kdb/kdb_expr.c optional kadb
kdb/kdb_format.c optional kadb
kdb/kdb_input.c optional kadb
kdb/kdb_message.c optional kadb
kdb/kdb_output.c optional kadb
kdb/kdb_pcs.c optional kadb
kdb/kdb_print.c optional kadb
kdb/kdb_runpcs.c optional kadb
kdb/kdb_sym.c optional kadb
kdb/kdb_trap.c optional kadb
kern/init_main.c standard
kern/init_sysent.c standard
kern/kern_acct.c standard
kern/kern_clock.c standard
kern/kern_descrip.c standard
kern/kern_exec.c standard
kern/kern_exit.c standard
kern/kern_fork.c standard
kern/kern_ktrace.c standard
kern/kern_malloc.c standard
kern/kern_physio.c standard
kern/kern_proc.c standard
kern/kern_prot.c standard
kern/kern_resource.c standard
kern/kern_sig.c standard
kern/kern_subr.c standard
kern/kern_synch.c standard
kern/kern_sysctl.c standard
kern/kern_time.c standard
kern/kern_xxx.c standard
kern/kern_lock.c standard
kern/subr_log.c standard
kern/subr_prf.c standard
kern/subr_prof.c standard
kern/subr_rmap.c standard
kern/subr_xxx.c standard
kern/sys_generic.c standard
kern/sys_process.c standard
kern/sys_socket.c standard
kern/sysv_shm.c optional sysvshm
kern/tty.c standard
kern/tty_compat.c standard
kern/tty_conf.c standard
kern/tty_pty.c optional pty
kern/tty_subr.c standard
kern/tty_tb.c optional tb
kern/tty_tty.c standard
kern/uipc_domain.c standard
kern/uipc_mbuf.c standard
kern/uipc_proto.c standard
kern/uipc_socket.c standard
kern/uipc_socket2.c standard
kern/uipc_syscalls.c standard
kern/uipc_usrreq.c standard
kern/vfs_bio.c standard
kern/vfs_cache.c standard
kern/vfs_cluster.c standard
kern/vfs_conf.c standard
kern/vfs_init.c standard
kern/vfs_lookup.c standard
kern/vfs_subr.c standard
kern/vfs_syscalls.c standard
kern/vfs_vnops.c standard
miscfs/deadfs/dead_vnops.c standard
miscfs/fdesc/fdesc_vfsops.c optional fdesc
miscfs/fdesc/fdesc_vnops.c optional fdesc
miscfs/fifofs/fifo_vnops.c optional fifo
miscfs/kernfs/kernfs_vfsops.c optional kernfs
miscfs/kernfs/kernfs_vnops.c optional kernfs
miscfs/nullfs/null_subr.c optional nullfs
miscfs/nullfs/null_vfsops.c optional nullfs
miscfs/nullfs/null_vnops.c optional nullfs
miscfs/portal/portal_vfsops.c optional portal
miscfs/portal/portal_vnops.c optional portal
miscfs/procfs/procfs_subr.c optional procfs
miscfs/procfs/procfs_vnops.c optional procfs
miscfs/procfs/procfs_vfsops.c optional procfs
miscfs/procfs/procfs_note.c optional procfs
miscfs/procfs/procfs_mem.c optional procfs
miscfs/procfs/procfs_ctl.c optional procfs
miscfs/procfs/procfs_status.c optional procfs
miscfs/procfs/procfs_regs.c optional procfs
miscfs/procfs/procfs_fpregs.c optional procfs
miscfs/specfs/spec_vnops.c standard
miscfs/umapfs/umap_subr.c optional umapfs
miscfs/umapfs/umap_vfsops.c optional umapfs
miscfs/umapfs/umap_vnops.c optional umapfs
miscfs/union/union_subr.c optional union
miscfs/union/union_vfsops.c optional union
miscfs/union/union_vnops.c optional union
net/bpf.c optional bpfilter
net/bpf_filter.c optional bpfilter
net/if.c standard
net/if_ethersubr.c optional ether
net/if_loop.c optional loop
net/if_sl.c optional sl
net/radix.c standard
net/raw_cb.c standard
net/raw_usrreq.c standard
net/route.c standard
net/rtsock.c standard
net/slcompress.c optional sl
netccitt/ccitt_proto.c optional ccitt
netccitt/llc_input.c optional llc
netccitt/llc_output.c optional llc
netccitt/llc_subr.c optional llc
netccitt/llc_timer.c optional llc
netccitt/pk_llcsubr.c optional llc
netccitt/pk_llcsubr.c optional hdlc
netccitt/hd_debug.c optional hdlc
netccitt/hd_input.c optional hdlc
netccitt/hd_output.c optional hdlc
netccitt/hd_subr.c optional hdlc
netccitt/hd_timer.c optional hdlc
netccitt/if_x25subr.c optional ccitt
netccitt/pk_acct.c optional ccitt
netccitt/pk_debug.c optional ccitt
netccitt/pk_input.c optional ccitt
netccitt/pk_output.c optional ccitt
netccitt/pk_subr.c optional ccitt
netccitt/pk_timer.c optional ccitt
netccitt/pk_usrreq.c optional ccitt
netimp/if_imp.c optional imp
netimp/if_imphost.c optional imp
netimp/raw_imp.c optional imp
netinet/if_ether.c optional ether
netinet/igmp.c optional inet
netinet/in.c optional inet
netinet/in_pcb.c optional inet
netinet/in_proto.c optional inet
netinet/ip_icmp.c optional inet
netinet/ip_input.c optional inet
netinet/ip_mroute.c optional inet mrouting
netinet/ip_output.c optional inet
netinet/raw_ip.c optional inet
netinet/tcp_debug.c optional inet
netinet/tcp_input.c optional inet
netinet/tcp_output.c optional inet
netinet/tcp_subr.c optional inet
netinet/tcp_timer.c optional inet
netinet/tcp_usrreq.c optional inet
netinet/udp_usrreq.c optional inet
netiso/clnp_debug.c optional iso
netiso/clnp_er.c optional iso
netiso/clnp_frag.c optional iso
netiso/clnp_input.c optional iso
netiso/clnp_options.c optional iso
netiso/clnp_output.c optional iso
netiso/clnp_raw.c optional iso
netiso/clnp_subr.c optional iso
netiso/clnp_timer.c optional iso
netiso/cltp_usrreq.c optional iso
netiso/esis.c optional iso
netiso/idrp_usrreq.c optional iso
netiso/if_eon.c optional eon
netiso/iso.c optional iso
netiso/iso_chksum.c optional iso
netiso/iso_pcb.c optional iso
netiso/iso_proto.c optional iso
netiso/iso_snpac.c optional iso
netiso/tp_astring.c optional iso
netiso/tp_astring.c optional tpip
netiso/tp_cons.c optional iso
netiso/tp_driver.c optional iso
netiso/tp_driver.c optional tpip
netiso/tp_emit.c optional iso
netiso/tp_emit.c optional tpip
netiso/tp_inet.c optional iso
netiso/tp_inet.c optional tpip
netiso/tp_input.c optional iso
netiso/tp_input.c optional tpip
netiso/tp_iso.c optional iso
netiso/tp_meas.c optional iso
netiso/tp_meas.c optional tpip
netiso/tp_output.c optional iso
netiso/tp_output.c optional tpip
netiso/tp_pcb.c optional iso
netiso/tp_pcb.c optional tpip
netiso/tp_subr.c optional iso
netiso/tp_subr.c optional tpip
netiso/tp_subr2.c optional iso
netiso/tp_subr2.c optional tpip
netiso/tp_timer.c optional iso
netiso/tp_timer.c optional tpip
netiso/tp_trace.c optional iso
netiso/tp_trace.c optional tpip
netiso/tp_usrreq.c optional iso
netiso/tp_usrreq.c optional tpip
netiso/tuba_subr.c optional iso tuba
netiso/tuba_table.c optional iso tuba
netiso/tuba_usrreq.c optional iso tuba
netns/idp_usrreq.c optional ns
netns/ns.c optional ns
netns/ns_error.c optional ns
netns/ns_input.c optional ns
netns/ns_ip.c optional ns
netns/ns_output.c optional ns
netns/ns_pcb.c optional ns
netns/ns_proto.c optional ns
netns/spp_debug.c optional ns
netns/spp_usrreq.c optional ns
nfs/nfs_bio.c optional nfs
nfs/nfs_node.c optional nfs
nfs/nfs_nqlease.c optional nfs
nfs/nfs_serv.c optional nfs
nfs/nfs_socket.c optional nfs
nfs/nfs_srvcache.c optional nfs
nfs/nfs_subs.c optional nfs
nfs/nfs_syscalls.c optional nfs
nfs/nfs_vfsops.c optional nfs
nfs/nfs_vnops.c optional nfs
ufs/ffs/ffs_alloc.c optional ffs
ufs/ffs/ffs_alloc.c optional mfs
ufs/ffs/ffs_balloc.c optional ffs
ufs/ffs/ffs_balloc.c optional mfs
ufs/ffs/ffs_inode.c optional ffs
ufs/ffs/ffs_inode.c optional mfs
ufs/ffs/ffs_subr.c optional ffs
ufs/ffs/ffs_subr.c optional mfs
ufs/ffs/ffs_tables.c optional ffs
ufs/ffs/ffs_tables.c optional mfs
ufs/ffs/ffs_vfsops.c optional ffs
ufs/ffs/ffs_vfsops.c optional mfs
ufs/ffs/ffs_vnops.c optional ffs
ufs/ffs/ffs_vnops.c optional mfs
ufs/lfs/lfs_alloc.c optional lfs
ufs/lfs/lfs_bio.c optional lfs
ufs/lfs/lfs_balloc.c optional lfs
ufs/lfs/lfs_cksum.c optional lfs
ufs/lfs/lfs_debug.c optional lfs
ufs/lfs/lfs_inode.c optional lfs
ufs/lfs/lfs_segment.c optional lfs
ufs/lfs/lfs_subr.c optional lfs
ufs/lfs/lfs_syscalls.c optional lfs
ufs/lfs/lfs_vfsops.c optional lfs
ufs/lfs/lfs_vnops.c optional lfs
ufs/mfs/mfs_vfsops.c optional mfs
ufs/mfs/mfs_vnops.c optional mfs
ufs/ufs/ufs_bmap.c standard
ufs/ufs/ufs_disksubr.c standard
ufs/ufs/ufs_ihash.c standard
ufs/ufs/ufs_inode.c standard
ufs/ufs/ufs_lockf.c standard
ufs/ufs/ufs_lookup.c standard
ufs/ufs/ufs_quota.c standard
ufs/ufs/ufs_vfsops.c standard
ufs/ufs/ufs_vnops.c standard
vm/device_pager.c optional devpager
vm/swap_pager.c optional swappager
vm/vm_fault.c standard
vm/vm_glue.c standard
vm/vm_init.c standard
vm/vm_kern.c standard
vm/vm_map.c standard
vm/vm_meter.c standard
vm/vm_mmap.c standard
vm/vm_object.c standard
vm/vm_page.c standard
vm/vm_pageout.c standard
vm/vm_pager.c standard
vm/vm_swap.c standard
vm/vm_unix.c standard
vm/vm_user.c standard
vm/vnode_pager.c optional vnodepager

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# @(#)files.newconf 8.10 (Berkeley) 5/1/94
# generic attributes
define disk
define tape
define ifnet
define tty
# net device attributes - we have generic code for ether.
# we should have imp but right now it is a pseudo-device.
define ether
# define imp
pseudo-device imp
# scsi driver and associated stuff
define scsi { target = -1 }
device tg at scsi { drive = -1 }
file dev/scsi/scsi_subr.c scsi
device sd at tg: disk
file dev/scsi/sd.c sd needs-flag
# device st at tg: tape -- not yet
# legitimate pseudo-devices
pseudo-device bpfilter
pseudo-device cd: disk
pseudo-device loop
pseudo-device pty: tty
pseudo-device sl
pseudo-device vn: disk
# kernel sources
file isofs/cd9660/cd9660_bmap.c cd9660
file isofs/cd9660/cd9660_lookup.c cd9660
file isofs/cd9660/cd9660_node.c cd9660
file isofs/cd9660/cd9660_rrip.c cd9660
file isofs/cd9660/cd9660_util.c cd9660
file isofs/cd9660/cd9660_vfsops.c cd9660
file isofs/cd9660/cd9660_vnops.c cd9660
file kern/init_main.c
file kern/init_sysent.c
file kern/kern_acct.c
file kern/kern_clock.c
file kern/kern_descrip.c
file kern/kern_exec.c
file kern/kern_exit.c
file kern/kern_fork.c
file kern/kern_ktrace.c ktrace
file kern/kern_malloc.c
file kern/kern_physio.c
file kern/kern_proc.c
file kern/kern_prot.c
file kern/kern_resource.c
file kern/kern_sig.c
file kern/kern_subr.c
file kern/kern_synch.c
file kern/kern_sysctl.c
file kern/kern_time.c
file kern/kern_xxx.c
file kern/subr_autoconf.c
file kern/subr_log.c
file kern/subr_prf.c
file kern/subr_prof.c
file kern/subr_rmap.c
file kern/subr_xxx.c
file kern/sys_generic.c
file kern/sys_process.c
file kern/sys_socket.c
file kern/sysv_shm.c sysvshm
file kern/tty.c
file kern/tty_compat.c
file kern/tty_conf.c
file kern/tty_pty.c pty needs-count
file kern/tty_subr.c
file kern/tty_tb.c tb needs-flag
file kern/tty_tty.c
file kern/uipc_domain.c
file kern/uipc_mbuf.c
file kern/uipc_proto.c
file kern/uipc_socket.c
file kern/uipc_socket2.c
file kern/uipc_syscalls.c
file kern/uipc_usrreq.c
file kern/vfs_bio.c
file kern/vfs_cache.c
file kern/vfs_cluster.c
file kern/vfs_conf.c
file kern/vfs_init.c
file kern/vfs_lookup.c
file kern/vfs_subr.c
file kern/vfs_syscalls.c
file kern/vfs_vnops.c
file miscfs/deadfs/dead_vnops.c
file miscfs/fdesc/fdesc_vfsops.c fdesc
file miscfs/fdesc/fdesc_vnops.c fdesc
file miscfs/fifofs/fifo_vnops.c fifo
file miscfs/kernfs/kernfs_vfsops.c kernfs
file miscfs/kernfs/kernfs_vnops.c kernfs
file miscfs/nullfs/null_subr.c nullfs
file miscfs/nullfs/null_vfsops.c nullfs
file miscfs/nullfs/null_vnops.c nullfs
file miscfs/portal/portal_vfsops.c portal
file miscfs/portal/portal_vnops.c portal
file miscfs/procfs/procfs_subr.c procfs
file miscfs/procfs/procfs_vnops.c procfs
file miscfs/procfs/procfs_vfsops.c procfs
file miscfs/procfs/procfs_note.c procfs
file miscfs/procfs/procfs_mem.c procfs
file miscfs/procfs/procfs_ctl.c procfs
file miscfs/procfs/procfs_status.c procfs
file miscfs/procfs/procfs_regs.c procfs
file miscfs/procfs/procfs_fpregs.c procfs
file miscfs/specfs/spec_vnops.c
file miscfs/umapfs/umap_subr.c umapfs
file miscfs/umapfs/umap_vfsops.c umapfs
file miscfs/umapfs/umap_vnops.c umapfs
file miscfs/union/union_subr.c union
file miscfs/union/union_vfsops.c union
file miscfs/union/union_vnops.c union
file net/bpf.c bpfilter needs-count
file net/bpf_filter.c bpfilter needs-count
file net/if.c
file net/if_ethersubr.c ether needs-flag
file net/if_loop.c loop needs-count
file net/if_sl.c sl needs-count
file net/radix.c
file net/raw_cb.c
file net/raw_usrreq.c
file net/route.c
file net/rtsock.c
file net/slcompress.c sl
file netccitt/ccitt_proto.c ccitt
file netccitt/llc_input.c llc
file netccitt/llc_output.c llc
file netccitt/llc_subr.c llc
file netccitt/llc_timer.c llc
file netccitt/hd_debug.c hdlc
file netccitt/hd_input.c hdlc
file netccitt/hd_output.c hdlc
file netccitt/hd_subr.c hdlc
file netccitt/hd_timer.c hdlc
file netccitt/if_x25subr.c ccitt
file netccitt/pk_acct.c ccitt
file netccitt/pk_debug.c ccitt
file netccitt/pk_input.c ccitt
file netccitt/pk_llcsubr.c llc hdlc
file netccitt/pk_output.c ccitt
file netccitt/pk_subr.c ccitt
file netccitt/pk_timer.c ccitt
file netccitt/pk_usrreq.c ccitt
file netimp/if_imp.c imp needs-count
file netimp/if_imphost.c imp needs-count
file netimp/raw_imp.c imp
file netinet/if_ether.c ether
file netinet/igmp.c inet
file netinet/in.c inet
file netinet/in_pcb.c inet
file netinet/in_proto.c inet
file netinet/ip_icmp.c inet
file netinet/ip_input.c inet
file netinet/ip_mroute.c inet
file netinet/ip_output.c inet
file netinet/raw_ip.c inet
file netinet/tcp_debug.c inet
file netinet/tcp_input.c inet
file netinet/tcp_output.c inet
file netinet/tcp_subr.c inet
file netinet/tcp_timer.c inet
file netinet/tcp_usrreq.c inet
file netinet/udp_usrreq.c inet
file netiso/clnp_debug.c iso
file netiso/clnp_er.c iso
file netiso/clnp_frag.c iso
file netiso/clnp_input.c iso
file netiso/clnp_options.c iso
file netiso/clnp_output.c iso
file netiso/clnp_raw.c iso
file netiso/clnp_subr.c iso
file netiso/clnp_timer.c iso
file netiso/cltp_usrreq.c iso
file netiso/esis.c iso
file netiso/if_eon.c eon
file netiso/idrp_usrreq.c iso
file netiso/iso.c iso
file netiso/iso_chksum.c iso
file netiso/iso_pcb.c iso
file netiso/iso_proto.c iso
file netiso/iso_snpac.c iso
file netiso/tp_astring.c iso tpip
file netiso/tp_cons.c iso
file netiso/tp_driver.c iso tpip
file netiso/tp_emit.c iso tpip
file netiso/tp_inet.c iso tpip
file netiso/tp_input.c iso tpip
file netiso/tp_iso.c iso
file netiso/tp_meas.c iso tpip
file netiso/tp_output.c iso tpip
file netiso/tp_pcb.c iso tpip
file netiso/tp_subr.c iso tpip
file netiso/tp_subr2.c iso tpip
file netiso/tp_timer.c iso tpip
file netiso/tp_trace.c iso tpip
file netiso/tp_usrreq.c iso tpip
file netiso/tuba_subr.c iso tuba
file netiso/tuba_table.c iso tuba
file netiso/tuba_usrreq.c iso tuba
file netns/idp_usrreq.c ns
file netns/ns.c ns
file netns/ns_error.c ns
file netns/ns_input.c ns
file netns/ns_ip.c ns
file netns/ns_output.c ns
file netns/ns_pcb.c ns
file netns/ns_proto.c ns
file netns/spp_debug.c ns
file netns/spp_usrreq.c ns
file nfs/nfs_bio.c nfs
file nfs/nfs_node.c nfs
file nfs/nfs_nqlease.c nfs
file nfs/nfs_serv.c nfs
file nfs/nfs_socket.c nfs
file nfs/nfs_srvcache.c nfs
file nfs/nfs_subs.c nfs
file nfs/nfs_syscalls.c nfs
file nfs/nfs_vfsops.c nfs
file nfs/nfs_vnops.c nfs
file ufs/ffs/ffs_alloc.c ffs mfs
file ufs/ffs/ffs_balloc.c ffs mfs
file ufs/ffs/ffs_inode.c ffs mfs
file ufs/ffs/ffs_subr.c ffs mfs
file ufs/ffs/ffs_tables.c ffs mfs
file ufs/ffs/ffs_vfsops.c ffs mfs
file ufs/ffs/ffs_vnops.c ffs mfs
file ufs/lfs/lfs_alloc.c lfs
file ufs/lfs/lfs_bio.c lfs
file ufs/lfs/lfs_balloc.c lfs
file ufs/lfs/lfs_cksum.c lfs
file ufs/lfs/lfs_debug.c lfs
file ufs/lfs/lfs_inode.c lfs
file ufs/lfs/lfs_segment.c lfs
file ufs/lfs/lfs_subr.c lfs
file ufs/lfs/lfs_syscalls.c lfs
file ufs/lfs/lfs_vfsops.c lfs
file ufs/lfs/lfs_vnops.c lfs
file ufs/mfs/mfs_vfsops.c mfs
file ufs/mfs/mfs_vnops.c mfs
file ufs/ufs/ufs_bmap.c ffs lfs mfs
file ufs/ufs/ufs_disksubr.c ffs lfs mfs
file ufs/ufs/ufs_ihash.c ffs lfs mfs
file ufs/ufs/ufs_inode.c ffs lfs mfs
file ufs/ufs/ufs_lockf.c ffs lfs mfs
file ufs/ufs/ufs_lookup.c ffs lfs mfs
file ufs/ufs/ufs_quota.c ffs lfs mfs
file ufs/ufs/ufs_vfsops.c ffs lfs mfs
file ufs/ufs/ufs_vnops.c ffs lfs mfs
file vm/device_pager.c devpager
file vm/kern_lock.c
file vm/swap_pager.c swappager
file vm/vm_fault.c
file vm/vm_glue.c
file vm/vm_init.c
file vm/vm_kern.c
file vm/vm_map.c
file vm/vm_meter.c
file vm/vm_mmap.c
file vm/vm_object.c
file vm/vm_page.c
file vm/vm_pageout.c
file vm/vm_pager.c
file vm/vm_swap.c
file vm/vm_unix.c
file vm/vm_user.c
file vm/vnode_pager.c vnodepager

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/*
* Copyright (c) 1980, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)param.c 8.3 (Berkeley) 8/20/94
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/file.h>
#include <sys/callout.h>
#include <sys/clist.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <ufs/ufs/quota.h>
#ifdef SYSVSHM
#include <machine/vmparam.h>
#include <sys/shm.h>
#endif
/*
* System parameter formulae.
*
* This file is copied into each directory where we compile
* the kernel; it should be modified there to suit local taste
* if necessary.
*
* Compiled with -DHZ=xx -DTIMEZONE=x -DDST=x -DMAXUSERS=xx
*/
#ifndef HZ
#define HZ 100
#endif
int hz = HZ;
int tick = 1000000 / HZ;
int tickadj = 30000 / (60 * HZ); /* can adjust 30ms in 60s */
struct timezone tz = { TIMEZONE, DST };
#define NPROC (20 + 16 * MAXUSERS)
int maxproc = NPROC;
#define NTEXT (80 + NPROC / 8) /* actually the object cache */
#define NVNODE (NPROC + NTEXT + 100)
int desiredvnodes = NVNODE;
int maxfiles = 3 * (NPROC + MAXUSERS) + 80;
int ncallout = 16 + NPROC;
int nclist = 60 + 12 * MAXUSERS;
int nmbclusters = NMBCLUSTERS;
int fscale = FSCALE; /* kernel uses `FSCALE', user uses `fscale' */
/*
* Values in support of System V compatible shared memory. XXX
*/
#ifdef SYSVSHM
#define SHMMAX (SHMMAXPGS*NBPG)
#define SHMMIN 1
#define SHMMNI 32 /* <= SHMMMNI in shm.h */
#define SHMSEG 8
#define SHMALL (SHMMAXPGS/CLSIZE)
struct shminfo shminfo = {
SHMMAX,
SHMMIN,
SHMMNI,
SHMSEG,
SHMALL
};
#endif
/*
* These are initialized at bootstrap time
* to values dependent on memory size
*/
int nbuf, nswbuf;
/*
* These have to be allocated somewhere; allocating
* them here forces loader errors if this file is omitted
* (if they've been externed everywhere else; hah!).
*/
struct callout *callout;
struct cblock *cfree;
struct buf *buf, *swbuf;
char *buffers;

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sys/dev/vn/vn.c Normal file
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@ -0,0 +1,548 @@
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: vn.c 1.13 94/04/02$
*
* @(#)vn.c 8.9 (Berkeley) 5/14/95
*/
/*
* Vnode disk driver.
*
* Block/character interface to a vnode. Allows one to treat a file
* as a disk (e.g. build a filesystem in it, mount it, etc.).
*
* NOTE 1: This uses the VOP_BMAP/VOP_STRATEGY interface to the vnode
* instead of a simple VOP_RDWR. We do this to avoid distorting the
* local buffer cache.
*
* NOTE 2: There is a security issue involved with this driver.
* Once mounted all access to the contents of the "mapped" file via
* the special file is controlled by the permissions on the special
* file, the protection of the mapped file is ignored (effectively,
* by using root credentials in all transactions).
*
* NOTE 3: Doesn't interact with leases, should it?
*/
#include "vn.h"
#if NVN > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/errno.h>
#include <sys/dkstat.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/file.h>
#include <sys/uio.h>
#include <miscfs/specfs/specdev.h>
#include <dev/vnioctl.h>
#ifdef DEBUG
int dovncluster = 1;
int vndebug = 0x00;
#define VDB_FOLLOW 0x01
#define VDB_INIT 0x02
#define VDB_IO 0x04
#endif
#define b_cylin b_resid
#define vnunit(x) ((minor(x) >> 3) & 0x7) /* for consistency */
#define getvnbuf() \
((struct buf *)malloc(sizeof(struct buf), M_DEVBUF, M_WAITOK))
#define putvnbuf(bp) \
free((caddr_t)(bp), M_DEVBUF)
struct vn_softc {
int sc_flags; /* flags */
size_t sc_size; /* size of vn */
struct vnode *sc_vp; /* vnode */
struct ucred *sc_cred; /* credentials */
int sc_maxactive; /* max # of active requests */
struct buf sc_tab; /* transfer queue */
};
/* sc_flags */
#define VNF_ALIVE 0x01
#define VNF_INITED 0x02
#if 0 /* if you need static allocation */
struct vn_softc vn_softc[NVN];
int numvnd = NVN;
#else
struct vn_softc *vn_softc;
int numvnd;
#endif
void
vnattach(num)
int num;
{
char *mem;
register u_long size;
if (num <= 0)
return;
size = num * sizeof(struct vn_softc);
mem = malloc(size, M_DEVBUF, M_NOWAIT);
if (mem == NULL) {
printf("WARNING: no memory for vnode disks\n");
return;
}
bzero(mem, size);
vn_softc = (struct vn_softc *)mem;
numvnd = num;
}
int
vnopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
int unit = vnunit(dev);
#ifdef DEBUG
if (vndebug & VDB_FOLLOW)
printf("vnopen(%x, %x, %x, %x)\n", dev, flags, mode, p);
#endif
if (unit >= numvnd)
return(ENXIO);
return(0);
}
/*
* Break the request into bsize pieces and submit using VOP_BMAP/VOP_STRATEGY.
* Note that this driver can only be used for swapping over NFS on the hp
* since nfs_strategy on the vax cannot handle u-areas and page tables.
*/
void
vnstrategy(bp)
register struct buf *bp;
{
int unit = vnunit(bp->b_dev);
register struct vn_softc *vn = &vn_softc[unit];
register struct buf *nbp;
register int bn, bsize, resid;
register caddr_t addr;
int sz, flags, error;
extern void vniodone();
#ifdef DEBUG
if (vndebug & VDB_FOLLOW)
printf("vnstrategy(%x): unit %d\n", bp, unit);
#endif
if ((vn->sc_flags & VNF_INITED) == 0) {
bp->b_error = ENXIO;
bp->b_flags |= B_ERROR;
biodone(bp);
return;
}
bn = bp->b_blkno;
sz = howmany(bp->b_bcount, DEV_BSIZE);
bp->b_resid = bp->b_bcount;
if (bn < 0 || bn + sz > vn->sc_size) {
if (bn != vn->sc_size) {
bp->b_error = EINVAL;
bp->b_flags |= B_ERROR;
}
biodone(bp);
return;
}
bn = dbtob(bn);
bsize = vn->sc_vp->v_mount->mnt_stat.f_iosize;
addr = bp->b_data;
flags = bp->b_flags | B_CALL;
for (resid = bp->b_resid; resid; resid -= sz) {
struct vnode *vp;
daddr_t nbn;
int off, s, nra;
nra = 0;
error = VOP_BMAP(vn->sc_vp, bn / bsize, &vp, &nbn, &nra);
if (error == 0 && (long)nbn == -1)
error = EIO;
#ifdef DEBUG
if (!dovncluster)
nra = 0;
#endif
if (off = bn % bsize)
sz = bsize - off;
else
sz = (1 + nra) * bsize;
if (resid < sz)
sz = resid;
#ifdef DEBUG
if (vndebug & VDB_IO)
printf("vnstrategy: vp %x/%x bn %x/%x sz %x\n",
vn->sc_vp, vp, bn, nbn, sz);
#endif
nbp = getvnbuf();
nbp->b_flags = flags;
nbp->b_bcount = sz;
nbp->b_bufsize = bp->b_bufsize;
nbp->b_error = 0;
if (vp->v_type == VBLK || vp->v_type == VCHR)
nbp->b_dev = vp->v_rdev;
else
nbp->b_dev = NODEV;
nbp->b_data = addr;
nbp->b_blkno = nbn + btodb(off);
nbp->b_proc = bp->b_proc;
nbp->b_iodone = vniodone;
nbp->b_vp = vp;
nbp->b_pfcent = (int) bp; /* XXX */
nbp->b_rcred = vn->sc_cred; /* XXX crdup? */
nbp->b_wcred = vn->sc_cred; /* XXX crdup? */
nbp->b_dirtyoff = bp->b_dirtyoff;
nbp->b_dirtyend = bp->b_dirtyend;
nbp->b_validoff = bp->b_validoff;
nbp->b_validend = bp->b_validend;
/*
* If there was an error or a hole in the file...punt.
* Note that we deal with this after the nbp allocation.
* This ensures that we properly clean up any operations
* that we have already fired off.
*
* XXX we could deal with holes here but it would be
* a hassle (in the write case).
*/
if (error) {
nbp->b_error = error;
nbp->b_flags |= B_ERROR;
bp->b_resid -= (resid - sz);
biodone(nbp);
return;
}
/*
* Just sort by block number
*/
nbp->b_cylin = nbp->b_blkno;
s = splbio();
disksort(&vn->sc_tab, nbp);
if (vn->sc_tab.b_active < vn->sc_maxactive) {
vn->sc_tab.b_active++;
vnstart(vn);
}
splx(s);
bn += sz;
addr += sz;
}
}
/*
* Feed requests sequentially.
* We do it this way to keep from flooding NFS servers if we are connected
* to an NFS file. This places the burden on the client rather than the
* server.
*/
vnstart(vn)
register struct vn_softc *vn;
{
register struct buf *bp;
/*
* Dequeue now since lower level strategy routine might
* queue using same links
*/
bp = vn->sc_tab.b_actf;
vn->sc_tab.b_actf = bp->b_actf;
#ifdef DEBUG
if (vndebug & VDB_IO)
printf("vnstart(%d): bp %x vp %x blkno %x addr %x cnt %x\n",
vn-vn_softc, bp, bp->b_vp, bp->b_blkno, bp->b_data,
bp->b_bcount);
#endif
if ((bp->b_flags & B_READ) == 0)
bp->b_vp->v_numoutput++;
VOP_STRATEGY(bp);
}
void
vniodone(bp)
register struct buf *bp;
{
register struct buf *pbp = (struct buf *)bp->b_pfcent; /* XXX */
register struct vn_softc *vn = &vn_softc[vnunit(pbp->b_dev)];
int s;
s = splbio();
#ifdef DEBUG
if (vndebug & VDB_IO)
printf("vniodone(%d): bp %x vp %x blkno %x addr %x cnt %x\n",
vn-vn_softc, bp, bp->b_vp, bp->b_blkno, bp->b_data,
bp->b_bcount);
#endif
if (bp->b_error) {
#ifdef DEBUG
if (vndebug & VDB_IO)
printf("vniodone: bp %x error %d\n", bp, bp->b_error);
#endif
pbp->b_flags |= B_ERROR;
pbp->b_error = biowait(bp);
}
pbp->b_resid -= bp->b_bcount;
putvnbuf(bp);
if (pbp->b_resid == 0) {
#ifdef DEBUG
if (vndebug & VDB_IO)
printf("vniodone: pbp %x iodone\n", pbp);
#endif
biodone(pbp);
}
if (vn->sc_tab.b_actf)
vnstart(vn);
else
vn->sc_tab.b_active--;
splx(s);
}
vnread(dev, uio, flags, p)
dev_t dev;
struct uio *uio;
int flags;
struct proc *p;
{
#ifdef DEBUG
if (vndebug & VDB_FOLLOW)
printf("vnread(%x, %x, %x, %x)\n", dev, uio, flags, p);
#endif
return(physio(vnstrategy, NULL, dev, B_READ, minphys, uio));
}
vnwrite(dev, uio, flags, p)
dev_t dev;
struct uio *uio;
int flags;
struct proc *p;
{
#ifdef DEBUG
if (vndebug & VDB_FOLLOW)
printf("vnwrite(%x, %x, %x, %x)\n", dev, uio, flags, p);
#endif
return(physio(vnstrategy, NULL, dev, B_WRITE, minphys, uio));
}
/* ARGSUSED */
vnioctl(dev, cmd, data, flag, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
int unit = vnunit(dev);
register struct vn_softc *vn;
struct vn_ioctl *vio;
struct vattr vattr;
struct nameidata nd;
int error;
#ifdef DEBUG
if (vndebug & VDB_FOLLOW)
printf("vnioctl(%x, %x, %x, %x, %x): unit %d\n",
dev, cmd, data, flag, p, unit);
#endif
error = suser(p->p_ucred, &p->p_acflag);
if (error)
return (error);
if (unit >= numvnd)
return (ENXIO);
vn = &vn_softc[unit];
vio = (struct vn_ioctl *)data;
switch (cmd) {
case VNIOCSET:
if (vn->sc_flags & VNF_INITED)
return(EBUSY);
/*
* Always open for read and write.
* This is probably bogus, but it lets vn_open()
* weed out directories, sockets, etc. so we don't
* have to worry about them.
*/
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, vio->vn_file, p);
if (error = vn_open(&nd, FREAD|FWRITE, 0))
return(error);
if (error = VOP_GETATTR(nd.ni_vp, &vattr, p->p_ucred, p)) {
VOP_UNLOCK(nd.ni_vp, 0, p);
(void) vn_close(nd.ni_vp, FREAD|FWRITE, p->p_ucred, p);
return(error);
}
VOP_UNLOCK(nd.ni_vp, 0, p);
vn->sc_vp = nd.ni_vp;
vn->sc_size = btodb(vattr.va_size); /* note truncation */
if (error = vnsetcred(vn, p->p_ucred)) {
(void) vn_close(nd.ni_vp, FREAD|FWRITE, p->p_ucred, p);
return(error);
}
vnthrottle(vn, vn->sc_vp);
vio->vn_size = dbtob(vn->sc_size);
vn->sc_flags |= VNF_INITED;
#ifdef DEBUG
if (vndebug & VDB_INIT)
printf("vnioctl: SET vp %x size %x\n",
vn->sc_vp, vn->sc_size);
#endif
break;
case VNIOCCLR:
if ((vn->sc_flags & VNF_INITED) == 0)
return(ENXIO);
vnclear(vn);
#ifdef DEBUG
if (vndebug & VDB_INIT)
printf("vnioctl: CLRed\n");
#endif
break;
default:
return(ENOTTY);
}
return(0);
}
/*
* Duplicate the current processes' credentials. Since we are called only
* as the result of a SET ioctl and only root can do that, any future access
* to this "disk" is essentially as root. Note that credentials may change
* if some other uid can write directly to the mapped file (NFS).
*/
vnsetcred(vn, cred)
register struct vn_softc *vn;
struct ucred *cred;
{
struct uio auio;
struct iovec aiov;
char *tmpbuf;
int error;
vn->sc_cred = crdup(cred);
tmpbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK);
/* XXX: Horrible kludge to establish credentials for NFS */
aiov.iov_base = tmpbuf;
aiov.iov_len = min(DEV_BSIZE, dbtob(vn->sc_size));
auio.uio_iov = &aiov;
auio.uio_iovcnt = 1;
auio.uio_offset = 0;
auio.uio_rw = UIO_READ;
auio.uio_segflg = UIO_SYSSPACE;
auio.uio_resid = aiov.iov_len;
error = VOP_READ(vn->sc_vp, &auio, 0, vn->sc_cred);
free(tmpbuf, M_TEMP);
return (error);
}
/*
* Set maxactive based on FS type
*/
vnthrottle(vn, vp)
register struct vn_softc *vn;
struct vnode *vp;
{
extern int (**nfsv2_vnodeop_p)();
if (vp->v_op == nfsv2_vnodeop_p)
vn->sc_maxactive = 2;
else
vn->sc_maxactive = 8;
if (vn->sc_maxactive < 1)
vn->sc_maxactive = 1;
}
vnshutdown()
{
register struct vn_softc *vn;
for (vn = &vn_softc[0]; vn < &vn_softc[numvnd]; vn++)
if (vn->sc_flags & VNF_INITED)
vnclear(vn);
}
vnclear(vn)
register struct vn_softc *vn;
{
register struct vnode *vp = vn->sc_vp;
struct proc *p = curproc; /* XXX */
#ifdef DEBUG
if (vndebug & VDB_FOLLOW)
printf("vnclear(%x): vp %x\n", vp);
#endif
vn->sc_flags &= ~VNF_INITED;
if (vp == (struct vnode *)0)
panic("vnioctl: null vp");
(void) vn_close(vp, FREAD|FWRITE, vn->sc_cred, p);
crfree(vn->sc_cred);
vn->sc_vp = (struct vnode *)0;
vn->sc_cred = (struct ucred *)0;
vn->sc_size = 0;
}
vnsize(dev)
dev_t dev;
{
int unit = vnunit(dev);
register struct vn_softc *vn = &vn_softc[unit];
if (unit >= numvnd || (vn->sc_flags & VNF_INITED) == 0)
return(-1);
return(vn->sc_size);
}
vndump(dev)
{
return(ENXIO);
}
#endif