diff options
author | gordon <gordon@FreeBSD.org> | 2002-07-07 22:22:16 +0000 |
---|---|---|
committer | gordon <gordon@FreeBSD.org> | 2002-07-07 22:22:16 +0000 |
commit | ea5e54bfd7c29b7ace1100eba8744fc439829a6e (patch) | |
tree | 144beb82852eaa1f31ef72e28f7b4ad520494d60 | |
parent | 6a6fb8b86ab556d4ce74780f4f53e79aedce96bb (diff) | |
download | FreeBSD-src-ea5e54bfd7c29b7ace1100eba8744fc439829a6e.zip FreeBSD-src-ea5e54bfd7c29b7ace1100eba8744fc439829a6e.tar.gz |
Remove nfsd and mountd from src/sbin, look for it in src/usr.sbin
-rw-r--r-- | sbin/mountd/Makefile | 8 | ||||
-rw-r--r-- | sbin/mountd/exports.5 | 323 | ||||
-rw-r--r-- | sbin/mountd/mountd.8 | 150 | ||||
-rw-r--r-- | sbin/mountd/mountd.c | 2444 | ||||
-rw-r--r-- | sbin/mountd/netgroup.5 | 194 | ||||
-rw-r--r-- | sbin/mountd/pathnames.h | 39 | ||||
-rw-r--r-- | sbin/nfsd/Makefile | 8 | ||||
-rw-r--r-- | sbin/nfsd/nfsd.8 | 191 | ||||
-rw-r--r-- | sbin/nfsd/nfsd.c | 845 |
9 files changed, 0 insertions, 4202 deletions
diff --git a/sbin/mountd/Makefile b/sbin/mountd/Makefile deleted file mode 100644 index 04cd28f..0000000 --- a/sbin/mountd/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# From: @(#)Makefile 8.3 (Berkeley) 1/25/94 -# $FreeBSD$ - -PROG= mountd -WARNS= 0 -MAN= exports.5 netgroup.5 mountd.8 - -.include <bsd.prog.mk> diff --git a/sbin/mountd/exports.5 b/sbin/mountd/exports.5 deleted file mode 100644 index 98e1f24..0000000 --- a/sbin/mountd/exports.5 +++ /dev/null @@ -1,323 +0,0 @@ -.\" Copyright (c) 1989, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" 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. -.\" -.\" @(#)exports.5 8.3 (Berkeley) 3/29/95 -.\" $FreeBSD$ -.\" -.Dd March 29, 1995 -.Dt EXPORTS 5 -.Os -.Sh NAME -.Nm exports -.Nd define remote mount points for -.Tn NFS -mount requests -.Sh SYNOPSIS -.Nm -.Sh DESCRIPTION -The -.Nm -file specifies remote mount points for the -.Tn NFS -mount protocol per the -.Tn NFS -server specification; see -.%T "Network File System Protocol Specification" , -RFC1094, Appendix A and -.%T "NFS: Network File System Version 3 Specification" , -Appendix I. -.Pp -Each line in the file -(other than comment lines that begin with a #) -specifies the mount point(s) and export flags within one local server -filesystem for one or more hosts. -A long line may be split over several lines by ending all but the -last line with a backslash -.Pq Ql \e . -A host may be specified only once for each local filesystem on the -server and there may be only one default entry for each server -filesystem that applies to all other hosts. -The latter exports the filesystem to the ``world'' and should -be used only when the filesystem contains public information. -.Pp -In a mount entry, -the first field(s) specify the directory path(s) within a server filesystem -that can be mounted on by the corresponding client(s). -There are two forms of this specification. -The first is to list all mount points as absolute -directory paths separated by whitespace. -The second is to specify the pathname of the root of the filesystem -followed by the -.Fl alldirs -flag; -this form allows the host(s) to mount at any point within the filesystem, -including regular files if the -.Fl r -option is used on -.Xr mountd 8 . -The pathnames must not have any symbolic links in them and should not have -any "." or ".." components. -Mount points for a filesystem may appear on multiple lines each with -different sets of hosts and export options. -.Pp -The second component of a line specifies how the filesystem is to be -exported to the host set. -The option flags specify whether the filesystem -is exported read-only or read-write and how the client uid is mapped to -user credentials on the server. -.Pp -Export options are specified as follows: -.Pp -.Sm off -.Fl maproot No = Sy user -.Sm on -The credential of the specified user is used for remote access by root. -The credential includes all the groups to which the user is a member -on the local machine (see -.Xr id 1 ) . -The user may be specified by name or number. -.Pp -.Sm off -.Fl maproot No = Sy user:group1:group2:... -.Sm on -The colon separated list is used to specify the precise credential -to be used for remote access by root. -The elements of the list may be either names or numbers. -Note that user: should be used to distinguish a credential containing -no groups from a complete credential for that user. -.Pp -.Sm off -.Fl mapall No = Sy user -.Sm on -or -.Sm off -.Fl mapall No = Sy user:group1:group2:... -.Sm on -specifies a mapping for all client uids (including root) -using the same semantics as -.Fl maproot . -.Pp -The option -.Fl r -is a synonym for -.Fl maproot -in an effort to be backward compatible with older export file formats. -.Pp -In the absence of -.Fl maproot -and -.Fl mapall -options, remote accesses by root will result in using a credential of -2:-2. -All other users will be mapped to their remote credential. -If a -.Fl maproot -option is given, -remote access by root will be mapped to that credential instead of -2:-2. -If a -.Fl mapall -option is given, -all users (including root) will be mapped to that credential in -place of their own. -.Pp -The -.Fl kerb -option specifies that the Kerberos authentication server should be -used to authenticate and map client credentials. -This option requires that the kernel be built with the NFSKERB option. -The use of this option will prevent the kernel from compiling -unless calls to the appropriate Kerberos encryption routines -are provided in the NFS source. -.Pp -The -.Fl ro -option specifies that the filesystem should be exported read-only -(default read/write). -The option -.Fl o -is a synonym for -.Fl ro -in an effort to be backward compatible with older export file formats. -.Pp -.Tn WebNFS -exports strictly according to the spec (RFC 2054 and RFC 2055) can -be done with the -.Fl public -flag. -However, this flag in itself allows r/w access to all files in -the filesystem, not requiring reserved ports and not remapping uids. -It -is only provided to conform to the spec, and should normally not be used. -For a -.Tn WebNFS -export, -use the -.Fl webnfs -flag, which implies -.Fl public , -.Sm off -.Fl mapall No = Sy nobody -.Sm on -and -.Fl ro . -.Pp -A -.Sm off -.Fl index No = Sy file -.Sm on -option can be used to specify a file whose handle will be returned if -a directory is looked up using the public filehandle -.Pq Tn WebNFS . -This is to mimic the behavior of URLs. -If no -.Fl index -option is specified, a directory filehandle will be returned as usual. -The -.Fl index -option only makes sense in combination with the -.Fl public -or -.Fl webnfs -flags. -.Pp -The third component of a line specifies the host set to which the line applies. -The set may be specified in three ways. -The first way is to list the host name(s) separated by white space. -(Standard Internet ``dot'' addresses may be used in place of names.) -The second way is to specify a ``netgroup'' as defined in the netgroup file (see -.Xr netgroup 5 ) . -The third way is to specify an Internet subnetwork using a network and -network mask that is defined as the set of all hosts with addresses within -the subnetwork. -This latter approach requires less overhead within the -kernel and is recommended for cases where the export line refers to a -large number of clients within an administrative subnet. -.Pp -The first two cases are specified by simply listing the name(s) separated -by whitespace. -All names are checked to see if they are ``netgroup'' names -first and are assumed to be hostnames otherwise. -Using the full domain specification for a hostname can normally -circumvent the problem of a host that has the same name as a netgroup. -The third case is specified by the flag -.Sm off -.Fl network No = Sy netname -.Sm on -and optionally -.Sm off -.Fl mask No = Sy netmask . -.Sm on -If the mask is not specified, it will default to the mask for that network -class (A, B or C; see -.Xr inet 4 ) . -.Pp -For example: -.Bd -literal -offset indent -/usr /usr/local -maproot=0:10 friends -/usr -maproot=daemon grumpy.cis.uoguelph.ca 131.104.48.16 -/usr -ro -mapall=nobody -/u -maproot=bin: -network 131.104.48 -mask 255.255.255.0 -/u2 -maproot=root friends -/u2 -alldirs -kerb -network cis-net -mask cis-mask -.Ed -.Pp -Given that -.Sy /usr , -.Sy /u -and -.Sy /u2 -are -local filesystem mount points, the above example specifies the following: -.Sy /usr -is exported to hosts -.Em friends -where friends is specified in the netgroup file -with users mapped to their remote credentials and -root mapped to uid 0 and group 10. -It is exported read-write and the hosts in ``friends'' can mount either /usr -or /usr/local. -It is exported to -.Em 131.104.48.16 -and -.Em grumpy.cis.uoguelph.ca -with users mapped to their remote credentials and -root mapped to the user and groups associated with ``daemon''; -it is exported to the rest of the world as read-only with -all users mapped to the user and groups associated with ``nobody''. -.Pp -.Sy /u -is exported to all hosts on the subnetwork -.Em 131.104.48 -with root mapped to the uid for ``bin'' and with no group access. -.Pp -.Sy /u2 -is exported to the hosts in ``friends'' with root mapped to uid and groups -associated with ``root''; -it is exported to all hosts on network ``cis-net'' allowing mounts at any -directory within /u2 and mapping all uids to credentials for the principal -that is authenticated by a Kerberos ticket. -.Pp -The -.Xr mountd 8 -utility can be made to re-read the -.Nm -file by sending it a hangup signal as follows: -.Bd -literal -offset indent -kill -s HUP `cat /var/run/mountd.pid` -.Ed -.Pp -After sending the -.Dv SIGHUP , -check the -.Xr syslogd 8 -output to see whether -.Xr mountd 8 -logged any parsing errors in the -.Nm -file. -.Sh FILES -.Bl -tag -width /etc/exports -compact -.It Pa /etc/exports -the default remote mount-point file -.El -.Sh SEE ALSO -.Xr netgroup 5 , -.Xr mountd 8 , -.Xr nfsd 8 , -.Xr showmount 8 -.Sh BUGS -The export options are tied to the local mount points in the kernel and -must be non-contradictory for any exported subdirectory of the local -server mount point. -It is recommended that all exported directories within the same server -filesystem be specified on adjacent lines going down the tree. -You cannot specify a hostname that is also the name of a netgroup. -Specifying the full domain specification for a hostname can normally -circumvent the problem. diff --git a/sbin/mountd/mountd.8 b/sbin/mountd/mountd.8 deleted file mode 100644 index 0be0e73..0000000 --- a/sbin/mountd/mountd.8 +++ /dev/null @@ -1,150 +0,0 @@ -.\" Copyright (c) 1989, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" 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. -.\" -.\" @(#)mountd.8 8.4 (Berkeley) 4/28/95 -.\" $FreeBSD$ -.\" -.Dd April 28, 1995 -.Dt MOUNTD 8 -.Os -.Sh NAME -.Nm mountd -.Nd service remote -.Tn NFS -mount requests -.Sh SYNOPSIS -.Nm -.Op Fl 2dlnr -.Op Ar exportsfile -.Sh DESCRIPTION -The -.Nm -utility is the server for -.Tn NFS -mount requests from other client machines. -It listens for service requests at the port indicated in the -.Tn NFS -server specification; see -.%T "Network File System Protocol Specification" , -RFC1094, Appendix A and -.%T "NFS: Network File System Version 3 Protocol Specification" , -Appendix I. -.Pp -The following options are available: -.Bl -tag -width indent -.It Fl 2 -Allow the administrator to force clients to use only the -version 2 -.Tn NFS -protocol to mount filesystems from this server. -.It Fl d -Output debugging information. -.It Fl l -Cause all succeeded -.Nm -requests to be logged. -.It Fl n -Allow non-root mount requests to be served. -This should only be specified if there are clients such as PC's, -that require it. -It will automatically clear the vfs.nfsrv.nfs_privport sysctl flag, which -controls if the kernel will accept NFS requests from reserved ports only. -.It Fl r -Allow mount RPCs requests for regular files to be served. -Although this seems to violate the mount protocol specification, -some diskless workstations do mount requests for -their swapfiles and expect them to be regular files. -Since a regular file cannot be specified in -.Pa /etc/exports , -the entire filesystem in which the swapfiles resides -will have to be exported with the -.Fl alldirs -flag. -.It Ar exportsfile -Specify an alternate location -for the exports file. -.El -.Pp -When -.Nm -is started, -it loads the export host addresses and options into the kernel -using the -.Xr mount 2 -system call. -After changing the exports file, -a hangup signal should be sent to the -.Nm -daemon -to get it to reload the export information. -After sending the SIGHUP -(kill \-s HUP `cat /var/run/mountd.pid`), -check the syslog output to see if -.Nm -logged any parsing -errors in the exports file. -.Pp -If -.Nm -detects that the running kernel does not include -.Tn NFS -support, it will attempt to load a loadable kernel module containing -.Tn NFS -code, using -.Xr kldload 8 -by way of -.Xr vfsload 3 . -If this fails, or no -.Tn NFS -KLD was available, -.Nm -exits with an error. -.Sh FILES -.Bl -tag -width /var/run/mountd.pid -compact -.It Pa /etc/exports -the list of exported filesystems -.It Pa /var/run/mountd.pid -the pid of the currently running mountd -.It Pa /var/db/mountdtab -the current list of remote mounted filesystems -.El -.Sh SEE ALSO -.Xr nfsstat 1 , -.Xr exports 5 , -.Xr kldload 8 , -.Xr nfsd 8 , -.Xr rpcbind 8 , -.Xr showmount 8 -.Sh HISTORY -The -.Nm -utility first appeared in -.Bx 4.4 . diff --git a/sbin/mountd/mountd.c b/sbin/mountd/mountd.c deleted file mode 100644 index 5940c4d..0000000 --- a/sbin/mountd/mountd.c +++ /dev/null @@ -1,2444 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Herb Hasler and Rick Macklem at The University of Guelph. - * - * 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. - */ - -#ifndef lint -static const char copyright[] = -"@(#) Copyright (c) 1989, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /*not lint*/ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; -#endif -static const char rcsid[] = - "$FreeBSD$"; -#endif /*not lint*/ - -#include <sys/param.h> -#include <sys/mount.h> -#include <sys/fcntl.h> -#include <sys/stat.h> -#include <sys/syslog.h> -#include <sys/sysctl.h> -#include <sys/linker.h> -#include <sys/module.h> - -#include <rpc/rpc.h> -#include <rpc/pmap_clnt.h> -#include <rpc/pmap_prot.h> -#include <rpcsvc/mount.h> -#include <nfs/rpcv2.h> -#include <nfs/nfsproto.h> -#include <nfsserver/nfs.h> -#include <ufs/ufs/ufsmount.h> -#include <fs/msdosfs/msdosfsmount.h> -#include <fs/ntfs/ntfsmount.h> -#include <isofs/cd9660/cd9660_mount.h> /* XXX need isofs in include */ - -#include <arpa/inet.h> - -#include <ctype.h> -#include <err.h> -#include <errno.h> -#include <grp.h> -#include <netdb.h> -#include <pwd.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include "pathnames.h" - -#ifdef DEBUG -#include <stdarg.h> -#endif - -#ifndef MOUNTDLOCK -#define MOUNTDLOCK "/var/run/mountd.lock" -#endif - -/* - * Structures for keeping the mount list and export list - */ -struct mountlist { - struct mountlist *ml_next; - char ml_host[RPCMNT_NAMELEN+1]; - char ml_dirp[RPCMNT_PATHLEN+1]; -}; - -struct dirlist { - struct dirlist *dp_left; - struct dirlist *dp_right; - int dp_flag; - struct hostlist *dp_hosts; /* List of hosts this dir exported to */ - char dp_dirp[1]; /* Actually malloc'd to size of dir */ -}; -/* dp_flag bits */ -#define DP_DEFSET 0x1 -#define DP_HOSTSET 0x2 - -struct exportlist { - struct exportlist *ex_next; - struct dirlist *ex_dirl; - struct dirlist *ex_defdir; - int ex_flag; - fsid_t ex_fs; - char *ex_fsdir; - char *ex_indexfile; -}; -/* ex_flag bits */ -#define EX_LINKED 0x1 - -struct netmsk { - struct sockaddr_storage nt_net; - struct sockaddr_storage nt_mask; - char *nt_name; -}; - -union grouptypes { - struct addrinfo *gt_addrinfo; - struct netmsk gt_net; -}; - -struct grouplist { - int gr_type; - union grouptypes gr_ptr; - struct grouplist *gr_next; -}; -/* Group types */ -#define GT_NULL 0x0 -#define GT_HOST 0x1 -#define GT_NET 0x2 -#define GT_DEFAULT 0x3 -#define GT_IGNORE 0x5 - -struct hostlist { - int ht_flag; /* Uses DP_xx bits */ - struct grouplist *ht_grp; - struct hostlist *ht_next; -}; - -struct fhreturn { - int fhr_flag; - int fhr_vers; - nfsfh_t fhr_fh; -}; - -/* Global defs */ -char *add_expdir(struct dirlist **, char *, int); -void add_dlist(struct dirlist **, struct dirlist *, - struct grouplist *, int); -void add_mlist(char *, char *); -int check_dirpath(char *); -int check_options(struct dirlist *); -int checkmask(struct sockaddr *sa); -int chk_host(struct dirlist *, struct sockaddr *, int *, int *); -void del_mlist(char *hostp, char *dirp); -struct dirlist *dirp_search(struct dirlist *, char *); -int do_mount(struct exportlist *, struct grouplist *, int, - struct xucred *, char *, int, struct statfs *); -int do_opt(char **, char **, struct exportlist *, struct grouplist *, - int *, int *, struct xucred *); -struct exportlist *ex_search(fsid_t *); -struct exportlist *get_exp(void); -void free_dir(struct dirlist *); -void free_exp(struct exportlist *); -void free_grp(struct grouplist *); -void free_host(struct hostlist *); -void get_exportlist(void); -int get_host(char *, struct grouplist *, struct grouplist *); -struct hostlist *get_ht(void); -int get_line(void); -void get_mountlist(void); -int get_net(char *, struct netmsk *, int); -void getexp_err(struct exportlist *, struct grouplist *); -struct grouplist *get_grp(void); -void hang_dirp(struct dirlist *, struct grouplist *, - struct exportlist *, int); -void huphandler(int sig); -int makemask(struct sockaddr_storage *ssp, int bitlen); -void mntsrv(struct svc_req *, SVCXPRT *); -void nextfield(char **, char **); -void out_of_mem(void); -void parsecred(char *, struct xucred *); -int put_exlist(struct dirlist *, XDR *, struct dirlist *, int *); -void *sa_rawaddr(struct sockaddr *sa, int *nbytes); -int sacmp(struct sockaddr *sa1, struct sockaddr *sa2, - struct sockaddr *samask); -int scan_tree(struct dirlist *, struct sockaddr *); -static void usage(void); -int xdr_dir(XDR *, char *); -int xdr_explist(XDR *, caddr_t); -int xdr_fhs(XDR *, caddr_t); -int xdr_mlist(XDR *, caddr_t); -void terminate(int); - -struct exportlist *exphead; -struct mountlist *mlhead; -struct grouplist *grphead; -char exname[MAXPATHLEN]; -struct xucred def_anon = { - XUCRED_VERSION, - (uid_t)-2, - 1, - { (gid_t)-2 }, - NULL -}; -int force_v2 = 0; -int resvport_only = 1; -int dir_only = 1; -int log = 0; -int got_sighup = 0; - -int opt_flags; -static int have_v6 = 1; -#ifdef NI_WITHSCOPEID -static const int ninumeric = NI_NUMERICHOST | NI_WITHSCOPEID; -#else -static const int ninumeric = NI_NUMERICHOST; -#endif - -int mountdlockfd; -/* Bits for opt_flags above */ -#define OP_MAPROOT 0x01 -#define OP_MAPALL 0x02 -/* 0x4 free */ -#define OP_MASK 0x08 -#define OP_NET 0x10 -#define OP_ALLDIRS 0x40 -#define OP_HAVEMASK 0x80 /* A mask was specified or inferred. */ -#define OP_MASKLEN 0x200 - -#ifdef DEBUG -int debug = 1; -void SYSLOG(int, const char *, ...) __printflike(2, 3); -#define syslog SYSLOG -#else -int debug = 0; -#endif - -/* - * Mountd server for NFS mount protocol as described in: - * NFS: Network File System Protocol Specification, RFC1094, Appendix A - * The optional arguments are the exports file name - * default: _PATH_EXPORTS - * and "-n" to allow nonroot mount. - */ -int -main(argc, argv) - int argc; - char **argv; -{ - fd_set readfds; - SVCXPRT *udptransp, *tcptransp, *udp6transp, *tcp6transp; - struct netconfig *udpconf, *tcpconf, *udp6conf, *tcp6conf; - int udpsock, tcpsock, udp6sock, tcp6sock; - int xcreated = 0, s; - int one = 1; - int c; - - udp6conf = tcp6conf = NULL; - udp6sock = tcp6sock = NULL; - - /* Check that another mountd isn't already running. */ - if ((mountdlockfd = (open(MOUNTDLOCK, O_RDONLY|O_CREAT, 0444))) == -1) - err(1, "%s", MOUNTDLOCK); - - if(flock(mountdlockfd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK) - errx(1, "another rpc.mountd is already running. Aborting"); - s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); - if (s < 0) - have_v6 = 0; - else - close(s); - if (modfind("nfsserver") < 0) { - /* Not present in kernel, try loading it */ - if (kldload("nfsserver") < 0 || modfind("nfsserver") < 0) - errx(1, "NFS server is not available or loadable"); - } - - while ((c = getopt(argc, argv, "2dlnr")) != -1) - switch (c) { - case '2': - force_v2 = 1; - break; - case 'n': - resvport_only = 0; - break; - case 'r': - dir_only = 0; - break; - case 'd': - debug = debug ? 0 : 1; - break; - case 'l': - log = 1; - break; - default: - usage(); - }; - argc -= optind; - argv += optind; - grphead = (struct grouplist *)NULL; - exphead = (struct exportlist *)NULL; - mlhead = (struct mountlist *)NULL; - if (argc == 1) { - strncpy(exname, *argv, MAXPATHLEN-1); - exname[MAXPATHLEN-1] = '\0'; - } else - strcpy(exname, _PATH_EXPORTS); - openlog("mountd", LOG_PID, LOG_DAEMON); - if (debug) - warnx("getting export list"); - get_exportlist(); - if (debug) - warnx("getting mount list"); - get_mountlist(); - if (debug) - warnx("here we go"); - if (debug == 0) { - daemon(0, 0); - signal(SIGINT, SIG_IGN); - signal(SIGQUIT, SIG_IGN); - } - signal(SIGHUP, huphandler); - signal(SIGTERM, terminate); - { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w"); - if (pidfile != NULL) { - fprintf(pidfile, "%d\n", getpid()); - fclose(pidfile); - } - } - rpcb_unset(RPCPROG_MNT, RPCMNT_VER1, NULL); - rpcb_unset(RPCPROG_MNT, RPCMNT_VER3, NULL); - udpsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); - tcpsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); - udpconf = getnetconfigent("udp"); - tcpconf = getnetconfigent("tcp"); - if (!have_v6) - goto skip_v6; - udp6sock = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); - tcp6sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); - /* - * We're doing host-based access checks here, so don't allow - * v4-in-v6 to confuse things. The kernel will disable it - * by default on NFS sockets too. - */ - if (udp6sock != -1 && setsockopt(udp6sock, IPPROTO_IPV6, - IPV6_BINDV6ONLY, &one, sizeof one) < 0){ - syslog(LOG_ERR, "can't disable v4-in-v6 on UDP socket"); - exit(1); - } - if (tcp6sock != -1 && setsockopt(tcp6sock, IPPROTO_IPV6, - IPV6_BINDV6ONLY, &one, sizeof one) < 0){ - syslog(LOG_ERR, "can't disable v4-in-v6 on UDP socket"); - exit(1); - } - udp6conf = getnetconfigent("udp6"); - tcp6conf = getnetconfigent("tcp6"); - -skip_v6: - if (!resvport_only) { - if (sysctlbyname("vfs.nfsrv.nfs_privport", NULL, NULL, - &resvport_only, sizeof(resvport_only)) != 0 && - errno != ENOENT) { - syslog(LOG_ERR, "sysctl: %m"); - exit(1); - } - } - if (udpsock != -1 && udpconf != NULL) { - bindresvport(udpsock, NULL); - udptransp = svc_dg_create(udpsock, 0, 0); - if (udptransp != NULL) { - if (!svc_reg(udptransp, RPCPROG_MNT, RPCMNT_VER1, - mntsrv, udpconf)) - syslog(LOG_WARNING, "can't register UDP RPCMNT_VER1 service"); - else - xcreated++; - if (!force_v2) { - if (!svc_reg(udptransp, RPCPROG_MNT, RPCMNT_VER3, - mntsrv, udpconf)) - syslog(LOG_WARNING, "can't register UDP RPCMNT_VER3 service"); - else - xcreated++; - } - } else - syslog(LOG_WARNING, "can't create UDP services"); - - } - if (tcpsock != -1 && tcpconf != NULL) { - bindresvport(tcpsock, NULL); - listen(tcpsock, SOMAXCONN); - tcptransp = svc_vc_create(tcpsock, 0, 0); - if (tcptransp != NULL) { - if (!svc_reg(tcptransp, RPCPROG_MNT, RPCMNT_VER1, - mntsrv, tcpconf)) - syslog(LOG_WARNING, "can't register TCP RPCMNT_VER1 service"); - else - xcreated++; - if (!force_v2) { - if (!svc_reg(tcptransp, RPCPROG_MNT, RPCMNT_VER3, - mntsrv, tcpconf)) - syslog(LOG_WARNING, "can't register TCP RPCMNT_VER3 service"); - else - xcreated++; - } - } else - syslog(LOG_WARNING, "can't create TCP service"); - - } - if (have_v6 && udp6sock != -1 && udp6conf != NULL) { - bindresvport(udp6sock, NULL); - udp6transp = svc_dg_create(udp6sock, 0, 0); - if (udp6transp != NULL) { - if (!svc_reg(udp6transp, RPCPROG_MNT, RPCMNT_VER1, - mntsrv, udp6conf)) - syslog(LOG_WARNING, "can't register UDP6 RPCMNT_VER1 service"); - else - xcreated++; - if (!force_v2) { - if (!svc_reg(udp6transp, RPCPROG_MNT, RPCMNT_VER3, - mntsrv, udp6conf)) - syslog(LOG_WARNING, "can't register UDP6 RPCMNT_VER3 service"); - else - xcreated++; - } - } else - syslog(LOG_WARNING, "can't create UDP6 service"); - - } - if (have_v6 && tcp6sock != -1 && tcp6conf != NULL) { - bindresvport(tcp6sock, NULL); - listen(tcp6sock, SOMAXCONN); - tcp6transp = svc_vc_create(tcp6sock, 0, 0); - if (tcp6transp != NULL) { - if (!svc_reg(tcp6transp, RPCPROG_MNT, RPCMNT_VER1, - mntsrv, tcp6conf)) - syslog(LOG_WARNING, "can't register TCP6 RPCMNT_VER1 service"); - else - xcreated++; - if (!force_v2) { - if (!svc_reg(tcp6transp, RPCPROG_MNT, RPCMNT_VER3, - mntsrv, tcp6conf)) - syslog(LOG_WARNING, "can't register TCP6 RPCMNT_VER3 service"); - else - xcreated++; - } - } else - syslog(LOG_WARNING, "can't create TCP6 service"); - - } - if (xcreated == 0) { - syslog(LOG_ERR, "could not create any services"); - exit(1); - } - - /* Expand svc_run() here so that we can call get_exportlist(). */ - for (;;) { - if (got_sighup) { - get_exportlist(); - got_sighup = 0; - } - readfds = svc_fdset; - switch (select(svc_maxfd + 1, &readfds, NULL, NULL, NULL)) { - case -1: - if (errno == EINTR) - continue; - syslog(LOG_ERR, "mountd died: select: %m"); - exit(1); - case 0: - continue; - default: - svc_getreqset(&readfds); - } - } -} - -static void -usage() -{ - fprintf(stderr, - "usage: mountd [-2] [-d] [-l] [-n] [-r] [export_file]\n"); - exit(1); -} - -/* - * The mount rpc service - */ -void -mntsrv(rqstp, transp) - struct svc_req *rqstp; - SVCXPRT *transp; -{ - struct exportlist *ep; - struct dirlist *dp; - struct fhreturn fhr; - struct stat stb; - struct statfs fsb; - struct addrinfo *ai; - char host[NI_MAXHOST], numerichost[NI_MAXHOST]; - int lookup_failed = 1; - struct sockaddr *saddr; - u_short sport; - char rpcpath[RPCMNT_PATHLEN + 1], dirpath[MAXPATHLEN]; - int bad = 0, defset, hostset; - sigset_t sighup_mask; - - sigemptyset(&sighup_mask); - sigaddset(&sighup_mask, SIGHUP); - saddr = svc_getrpccaller(transp)->buf; - switch (saddr->sa_family) { - case AF_INET6: - sport = ntohs(((struct sockaddr_in6 *)saddr)->sin6_port); - break; - case AF_INET: - sport = ntohs(((struct sockaddr_in *)saddr)->sin_port); - break; - default: - syslog(LOG_ERR, "request from unknown address family"); - return; - } - lookup_failed = getnameinfo(saddr, saddr->sa_len, host, sizeof host, - NULL, 0, 0); - getnameinfo(saddr, saddr->sa_len, numerichost, - sizeof numerichost, NULL, 0, NI_NUMERICHOST); - ai = NULL; - switch (rqstp->rq_proc) { - case NULLPROC: - if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) - syslog(LOG_ERR, "can't send reply"); - return; - case RPCMNT_MOUNT: - if (sport >= IPPORT_RESERVED && resvport_only) { - syslog(LOG_NOTICE, - "mount request from %s from unprivileged port", - numerichost); - svcerr_weakauth(transp); - return; - } - if (!svc_getargs(transp, xdr_dir, rpcpath)) { - syslog(LOG_NOTICE, "undecodable mount request from %s", - numerichost); - svcerr_decode(transp); - return; - } - - /* - * Get the real pathname and make sure it is a directory - * or a regular file if the -r option was specified - * and it exists. - */ - if (realpath(rpcpath, dirpath) == NULL || - stat(dirpath, &stb) < 0 || - (!S_ISDIR(stb.st_mode) && - (dir_only || !S_ISREG(stb.st_mode))) || - statfs(dirpath, &fsb) < 0) { - chdir("/"); /* Just in case realpath doesn't */ - syslog(LOG_NOTICE, - "mount request from %s for non existent path %s", - numerichost, dirpath); - if (debug) - warnx("stat failed on %s", dirpath); - bad = ENOENT; /* We will send error reply later */ - } - - /* Check in the exports list */ - sigprocmask(SIG_BLOCK, &sighup_mask, NULL); - ep = ex_search(&fsb.f_fsid); - hostset = defset = 0; - if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) || - ((dp = dirp_search(ep->ex_dirl, dirpath)) && - chk_host(dp, saddr, &defset, &hostset)) || - (defset && scan_tree(ep->ex_defdir, saddr) == 0 && - scan_tree(ep->ex_dirl, saddr) == 0))) { - if (bad) { - if (!svc_sendreply(transp, xdr_long, - (caddr_t)&bad)) - syslog(LOG_ERR, "can't send reply"); - sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); - return; - } - if (hostset & DP_HOSTSET) - fhr.fhr_flag = hostset; - else - fhr.fhr_flag = defset; - fhr.fhr_vers = rqstp->rq_vers; - /* Get the file handle */ - memset(&fhr.fhr_fh, 0, sizeof(nfsfh_t)); - if (getfh(dirpath, (fhandle_t *)&fhr.fhr_fh) < 0) { - bad = errno; - syslog(LOG_ERR, "can't get fh for %s", dirpath); - if (!svc_sendreply(transp, xdr_long, - (caddr_t)&bad)) - syslog(LOG_ERR, "can't send reply"); - sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); - return; - } - if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&fhr)) - syslog(LOG_ERR, "can't send reply"); - if (!lookup_failed) - add_mlist(host, dirpath); - else - add_mlist(numerichost, dirpath); - if (debug) - warnx("mount successful"); - if (log) - syslog(LOG_NOTICE, - "mount request succeeded from %s for %s", - numerichost, dirpath); - } else { - bad = EACCES; - syslog(LOG_NOTICE, - "mount request denied from %s for %s", - numerichost, dirpath); - } - - if (bad && !svc_sendreply(transp, xdr_long, (caddr_t)&bad)) - syslog(LOG_ERR, "can't send reply"); - sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); - return; - case RPCMNT_DUMP: - if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL)) - syslog(LOG_ERR, "can't send reply"); - else if (log) - syslog(LOG_NOTICE, - "dump request succeeded from %s", - numerichost); - return; - case RPCMNT_UMOUNT: - if (sport >= IPPORT_RESERVED && resvport_only) { - syslog(LOG_NOTICE, - "umount request from %s from unprivileged port", - numerichost); - svcerr_weakauth(transp); - return; - } - if (!svc_getargs(transp, xdr_dir, rpcpath)) { - syslog(LOG_NOTICE, "undecodable umount request from %s", - numerichost); - svcerr_decode(transp); - return; - } - if (realpath(rpcpath, dirpath) == NULL) { - syslog(LOG_NOTICE, "umount request from %s " - "for non existent path %s", - numerichost, dirpath); - } - if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) - syslog(LOG_ERR, "can't send reply"); - if (!lookup_failed) - del_mlist(host, dirpath); - del_mlist(numerichost, dirpath); - if (log) - syslog(LOG_NOTICE, - "umount request succeeded from %s for %s", - numerichost, dirpath); - return; - case RPCMNT_UMNTALL: - if (sport >= IPPORT_RESERVED && resvport_only) { - syslog(LOG_NOTICE, - "umountall request from %s from unprivileged port", - numerichost); - svcerr_weakauth(transp); - return; - } - if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) - syslog(LOG_ERR, "can't send reply"); - if (!lookup_failed) - del_mlist(host, NULL); - del_mlist(numerichost, NULL); - if (log) - syslog(LOG_NOTICE, - "umountall request succeeded from %s", - numerichost); - return; - case RPCMNT_EXPORT: - if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL)) - syslog(LOG_ERR, "can't send reply"); - if (log) - syslog(LOG_NOTICE, - "export request succeeded from %s", - numerichost); - return; - default: - svcerr_noproc(transp); - return; - } -} - -/* - * Xdr conversion for a dirpath string - */ -int -xdr_dir(xdrsp, dirp) - XDR *xdrsp; - char *dirp; -{ - return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); -} - -/* - * Xdr routine to generate file handle reply - */ -int -xdr_fhs(xdrsp, cp) - XDR *xdrsp; - caddr_t cp; -{ - struct fhreturn *fhrp = (struct fhreturn *)cp; - u_long ok = 0, len, auth; - - if (!xdr_long(xdrsp, &ok)) - return (0); - switch (fhrp->fhr_vers) { - case 1: - return (xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, NFSX_V2FH)); - case 3: - len = NFSX_V3FH; - if (!xdr_long(xdrsp, &len)) - return (0); - if (!xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, len)) - return (0); - auth = RPCAUTH_UNIX; - len = 1; - if (!xdr_long(xdrsp, &len)) - return (0); - return (xdr_long(xdrsp, &auth)); - }; - return (0); -} - -int -xdr_mlist(xdrsp, cp) - XDR *xdrsp; - caddr_t cp; -{ - struct mountlist *mlp; - int true = 1; - int false = 0; - char *strp; - - mlp = mlhead; - while (mlp) { - if (!xdr_bool(xdrsp, &true)) - return (0); - strp = &mlp->ml_host[0]; - if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN)) - return (0); - strp = &mlp->ml_dirp[0]; - if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) - return (0); - mlp = mlp->ml_next; - } - if (!xdr_bool(xdrsp, &false)) - return (0); - return (1); -} - -/* - * Xdr conversion for export list - */ -int -xdr_explist(xdrsp, cp) - XDR *xdrsp; - caddr_t cp; -{ - struct exportlist *ep; - int false = 0; - int putdef; - sigset_t sighup_mask; - - sigemptyset(&sighup_mask); - sigaddset(&sighup_mask, SIGHUP); - sigprocmask(SIG_BLOCK, &sighup_mask, NULL); - ep = exphead; - while (ep) { - putdef = 0; - if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef)) - goto errout; - if (ep->ex_defdir && putdef == 0 && - put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, - &putdef)) - goto errout; - ep = ep->ex_next; - } - sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); - if (!xdr_bool(xdrsp, &false)) - return (0); - return (1); -errout: - sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); - return (0); -} - -/* - * Called from xdr_explist() to traverse the tree and export the - * directory paths. - */ -int -put_exlist(dp, xdrsp, adp, putdefp) - struct dirlist *dp; - XDR *xdrsp; - struct dirlist *adp; - int *putdefp; -{ - struct grouplist *grp; - struct hostlist *hp; - int true = 1; - int false = 0; - int gotalldir = 0; - char *strp; - - if (dp) { - if (put_exlist(dp->dp_left, xdrsp, adp, putdefp)) - return (1); - if (!xdr_bool(xdrsp, &true)) - return (1); - strp = dp->dp_dirp; - if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) - return (1); - if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { - gotalldir = 1; - *putdefp = 1; - } - if ((dp->dp_flag & DP_DEFSET) == 0 && - (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { - hp = dp->dp_hosts; - while (hp) { - grp = hp->ht_grp; - if (grp->gr_type == GT_HOST) { - if (!xdr_bool(xdrsp, &true)) - return (1); - strp = grp->gr_ptr.gt_addrinfo->ai_canonname; - if (!xdr_string(xdrsp, &strp, - RPCMNT_NAMELEN)) - return (1); - } else if (grp->gr_type == GT_NET) { - if (!xdr_bool(xdrsp, &true)) - return (1); - strp = grp->gr_ptr.gt_net.nt_name; - if (!xdr_string(xdrsp, &strp, - RPCMNT_NAMELEN)) - return (1); - } - hp = hp->ht_next; - if (gotalldir && hp == (struct hostlist *)NULL) { - hp = adp->dp_hosts; - gotalldir = 0; - } - } - } - if (!xdr_bool(xdrsp, &false)) - return (1); - if (put_exlist(dp->dp_right, xdrsp, adp, putdefp)) - return (1); - } - return (0); -} - -char *line; -int linesize; -FILE *exp_file; - -/* - * Get the export list - */ -void -get_exportlist() -{ - struct exportlist *ep, *ep2; - struct grouplist *grp, *tgrp; - struct exportlist **epp; - struct dirlist *dirhead; - struct statfs fsb, *fsp; - struct xucred anon; - char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; - int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp; - - dirp = NULL; - dirplen = 0; - - /* - * First, get rid of the old list - */ - ep = exphead; - while (ep) { - ep2 = ep; - ep = ep->ex_next; - free_exp(ep2); - } - exphead = (struct exportlist *)NULL; - - grp = grphead; - while (grp) { - tgrp = grp; - grp = grp->gr_next; - free_grp(tgrp); - } - grphead = (struct grouplist *)NULL; - - /* - * And delete exports that are in the kernel for all local - * filesystems. - * XXX: Should know how to handle all local exportable filesystems - * instead of just "ufs". - */ - num = getmntinfo(&fsp, MNT_NOWAIT); - for (i = 0; i < num; i++) { - union { - struct ufs_args ua; - struct iso_args ia; - struct msdosfs_args da; - struct ntfs_args na; - } targs; - - if (!strcmp(fsp->f_fstypename, "ufs") || - !strcmp(fsp->f_fstypename, "msdosfs") || - !strcmp(fsp->f_fstypename, "ntfs") || - !strcmp(fsp->f_fstypename, "cd9660")) { - targs.ua.fspec = NULL; - targs.ua.export.ex_flags = MNT_DELEXPORT; - if (mount(fsp->f_fstypename, fsp->f_mntonname, - fsp->f_flags | MNT_UPDATE, (caddr_t)&targs) < 0 && - errno != ENOENT) - syslog(LOG_ERR, - "can't delete exports for %s: %m", - fsp->f_mntonname); - } - fsp++; - } - - /* - * Read in the exports file and build the list, calling - * mount() as we go along to push the export rules into the kernel. - */ - if ((exp_file = fopen(exname, "r")) == NULL) { - syslog(LOG_ERR, "can't open %s", exname); - exit(2); - } - dirhead = (struct dirlist *)NULL; - while (get_line()) { - if (debug) - warnx("got line %s", line); - cp = line; - nextfield(&cp, &endcp); - if (*cp == '#') - goto nextline; - - /* - * Set defaults. - */ - has_host = FALSE; - anon = def_anon; - exflags = MNT_EXPORTED; - got_nondir = 0; - opt_flags = 0; - ep = (struct exportlist *)NULL; - - /* - * Create new exports list entry - */ - len = endcp-cp; - tgrp = grp = get_grp(); - while (len > 0) { - if (len > RPCMNT_NAMELEN) { - getexp_err(ep, tgrp); - goto nextline; - } - if (*cp == '-') { - if (ep == (struct exportlist *)NULL) { - getexp_err(ep, tgrp); - goto nextline; - } - if (debug) - warnx("doing opt %s", cp); - got_nondir = 1; - if (do_opt(&cp, &endcp, ep, grp, &has_host, - &exflags, &anon)) { - getexp_err(ep, tgrp); - goto nextline; - } - } else if (*cp == '/') { - savedc = *endcp; - *endcp = '\0'; - if (check_dirpath(cp) && - statfs(cp, &fsb) >= 0) { - if (got_nondir) { - syslog(LOG_ERR, "dirs must be first"); - getexp_err(ep, tgrp); - goto nextline; - } - if (ep) { - if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] || - ep->ex_fs.val[1] != fsb.f_fsid.val[1]) { - getexp_err(ep, tgrp); - goto nextline; - } - } else { - /* - * See if this directory is already - * in the list. - */ - ep = ex_search(&fsb.f_fsid); - if (ep == (struct exportlist *)NULL) { - ep = get_exp(); - ep->ex_fs = fsb.f_fsid; - ep->ex_fsdir = (char *) - malloc(strlen(fsb.f_mntonname) + 1); - if (ep->ex_fsdir) - strcpy(ep->ex_fsdir, - fsb.f_mntonname); - else - out_of_mem(); - if (debug) - warnx("making new ep fs=0x%x,0x%x", - fsb.f_fsid.val[0], - fsb.f_fsid.val[1]); - } else if (debug) - warnx("found ep fs=0x%x,0x%x", - fsb.f_fsid.val[0], - fsb.f_fsid.val[1]); - } - - /* - * Add dirpath to export mount point. - */ - dirp = add_expdir(&dirhead, cp, len); - dirplen = len; - } else { - getexp_err(ep, tgrp); - goto nextline; - } - *endcp = savedc; - } else { - savedc = *endcp; - *endcp = '\0'; - got_nondir = 1; - if (ep == (struct exportlist *)NULL) { - getexp_err(ep, tgrp); - goto nextline; - } - - /* - * Get the host or netgroup. - */ - setnetgrent(cp); - netgrp = getnetgrent(&hst, &usr, &dom); - do { - if (has_host) { - grp->gr_next = get_grp(); - grp = grp->gr_next; - } - if (netgrp) { - if (hst == 0) { - syslog(LOG_ERR, - "null hostname in netgroup %s, skipping", cp); - grp->gr_type = GT_IGNORE; - } else if (get_host(hst, grp, tgrp)) { - syslog(LOG_ERR, - "bad host %s in netgroup %s, skipping", hst, cp); - grp->gr_type = GT_IGNORE; - } - } else if (get_host(cp, grp, tgrp)) { - syslog(LOG_ERR, "bad host %s, skipping", cp); - grp->gr_type = GT_IGNORE; - } - has_host = TRUE; - } while (netgrp && getnetgrent(&hst, &usr, &dom)); - endnetgrent(); - *endcp = savedc; - } - cp = endcp; - nextfield(&cp, &endcp); - len = endcp - cp; - } - if (check_options(dirhead)) { - getexp_err(ep, tgrp); - goto nextline; - } - if (!has_host) { - grp->gr_type = GT_DEFAULT; - if (debug) - warnx("adding a default entry"); - - /* - * Don't allow a network export coincide with a list of - * host(s) on the same line. - */ - } else if ((opt_flags & OP_NET) && tgrp->gr_next) { - syslog(LOG_ERR, "network/host conflict"); - getexp_err(ep, tgrp); - goto nextline; - - /* - * If an export list was specified on this line, make sure - * that we have at least one valid entry, otherwise skip it. - */ - } else { - grp = tgrp; - while (grp && grp->gr_type == GT_IGNORE) - grp = grp->gr_next; - if (! grp) { - getexp_err(ep, tgrp); - goto nextline; - } - } - - /* - * Loop through hosts, pushing the exports into the kernel. - * After loop, tgrp points to the start of the list and - * grp points to the last entry in the list. - */ - grp = tgrp; - do { - if (do_mount(ep, grp, exflags, &anon, dirp, dirplen, - &fsb)) { - getexp_err(ep, tgrp); - goto nextline; - } - } while (grp->gr_next && (grp = grp->gr_next)); - - /* - * Success. Update the data structures. - */ - if (has_host) { - hang_dirp(dirhead, tgrp, ep, opt_flags); - grp->gr_next = grphead; - grphead = tgrp; - } else { - hang_dirp(dirhead, (struct grouplist *)NULL, ep, - opt_flags); - free_grp(grp); - } - dirhead = (struct dirlist *)NULL; - if ((ep->ex_flag & EX_LINKED) == 0) { - ep2 = exphead; - epp = &exphead; - - /* - * Insert in the list in alphabetical order. - */ - while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { - epp = &ep2->ex_next; - ep2 = ep2->ex_next; - } - if (ep2) - ep->ex_next = ep2; - *epp = ep; - ep->ex_flag |= EX_LINKED; - } -nextline: - if (dirhead) { - free_dir(dirhead); - dirhead = (struct dirlist *)NULL; - } - } - fclose(exp_file); -} - -/* - * Allocate an export list element - */ -struct exportlist * -get_exp() -{ - struct exportlist *ep; - - ep = (struct exportlist *)malloc(sizeof (struct exportlist)); - if (ep == (struct exportlist *)NULL) - out_of_mem(); - memset(ep, 0, sizeof(struct exportlist)); - return (ep); -} - -/* - * Allocate a group list element - */ -struct grouplist * -get_grp() -{ - struct grouplist *gp; - - gp = (struct grouplist *)malloc(sizeof (struct grouplist)); - if (gp == (struct grouplist *)NULL) - out_of_mem(); - memset(gp, 0, sizeof(struct grouplist)); - return (gp); -} - -/* - * Clean up upon an error in get_exportlist(). - */ -void -getexp_err(ep, grp) - struct exportlist *ep; - struct grouplist *grp; -{ - struct grouplist *tgrp; - - syslog(LOG_ERR, "bad exports list line %s", line); - if (ep && (ep->ex_flag & EX_LINKED) == 0) - free_exp(ep); - while (grp) { - tgrp = grp; - grp = grp->gr_next; - free_grp(tgrp); - } -} - -/* - * Search the export list for a matching fs. - */ -struct exportlist * -ex_search(fsid) - fsid_t *fsid; -{ - struct exportlist *ep; - - ep = exphead; - while (ep) { - if (ep->ex_fs.val[0] == fsid->val[0] && - ep->ex_fs.val[1] == fsid->val[1]) - return (ep); - ep = ep->ex_next; - } - return (ep); -} - -/* - * Add a directory path to the list. - */ -char * -add_expdir(dpp, cp, len) - struct dirlist **dpp; - char *cp; - int len; -{ - struct dirlist *dp; - - dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); - if (dp == (struct dirlist *)NULL) - out_of_mem(); - dp->dp_left = *dpp; - dp->dp_right = (struct dirlist *)NULL; - dp->dp_flag = 0; - dp->dp_hosts = (struct hostlist *)NULL; - strcpy(dp->dp_dirp, cp); - *dpp = dp; - return (dp->dp_dirp); -} - -/* - * Hang the dir list element off the dirpath binary tree as required - * and update the entry for host. - */ -void -hang_dirp(dp, grp, ep, flags) - struct dirlist *dp; - struct grouplist *grp; - struct exportlist *ep; - int flags; -{ - struct hostlist *hp; - struct dirlist *dp2; - - if (flags & OP_ALLDIRS) { - if (ep->ex_defdir) - free((caddr_t)dp); - else - ep->ex_defdir = dp; - if (grp == (struct grouplist *)NULL) { - ep->ex_defdir->dp_flag |= DP_DEFSET; - } else while (grp) { - hp = get_ht(); - hp->ht_grp = grp; - hp->ht_next = ep->ex_defdir->dp_hosts; - ep->ex_defdir->dp_hosts = hp; - grp = grp->gr_next; - } - } else { - - /* - * Loop through the directories adding them to the tree. - */ - while (dp) { - dp2 = dp->dp_left; - add_dlist(&ep->ex_dirl, dp, grp, flags); - dp = dp2; - } - } -} - -/* - * Traverse the binary tree either updating a node that is already there - * for the new directory or adding the new node. - */ -void -add_dlist(dpp, newdp, grp, flags) - struct dirlist **dpp; - struct dirlist *newdp; - struct grouplist *grp; - int flags; -{ - struct dirlist *dp; - struct hostlist *hp; - int cmp; - - dp = *dpp; - if (dp) { - cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); - if (cmp > 0) { - add_dlist(&dp->dp_left, newdp, grp, flags); - return; - } else if (cmp < 0) { - add_dlist(&dp->dp_right, newdp, grp, flags); - return; - } else - free((caddr_t)newdp); - } else { - dp = newdp; - dp->dp_left = (struct dirlist *)NULL; - *dpp = dp; - } - if (grp) { - - /* - * Hang all of the host(s) off of the directory point. - */ - do { - hp = get_ht(); - hp->ht_grp = grp; - hp->ht_next = dp->dp_hosts; - dp->dp_hosts = hp; - grp = grp->gr_next; - } while (grp); - } else { - dp->dp_flag |= DP_DEFSET; - } -} - -/* - * Search for a dirpath on the export point. - */ -struct dirlist * -dirp_search(dp, dirp) - struct dirlist *dp; - char *dirp; -{ - int cmp; - - if (dp) { - cmp = strcmp(dp->dp_dirp, dirp); - if (cmp > 0) - return (dirp_search(dp->dp_left, dirp)); - else if (cmp < 0) - return (dirp_search(dp->dp_right, dirp)); - else - return (dp); - } - return (dp); -} - -/* - * Scan for a host match in a directory tree. - */ -int -chk_host(dp, saddr, defsetp, hostsetp) - struct dirlist *dp; - struct sockaddr *saddr; - int *defsetp; - int *hostsetp; -{ - struct hostlist *hp; - struct grouplist *grp; - struct addrinfo *ai; - - if (dp) { - if (dp->dp_flag & DP_DEFSET) - *defsetp = dp->dp_flag; - hp = dp->dp_hosts; - while (hp) { - grp = hp->ht_grp; - switch (grp->gr_type) { - case GT_HOST: - ai = grp->gr_ptr.gt_addrinfo; - for (; ai; ai = ai->ai_next) { - if (!sacmp(ai->ai_addr, saddr, NULL)) { - *hostsetp = - (hp->ht_flag | DP_HOSTSET); - return (1); - } - } - break; - case GT_NET: - if (!sacmp(saddr, (struct sockaddr *) - &grp->gr_ptr.gt_net.nt_net, - (struct sockaddr *) - &grp->gr_ptr.gt_net.nt_mask)) { - *hostsetp = (hp->ht_flag | DP_HOSTSET); - return (1); - } - break; - } - hp = hp->ht_next; - } - } - return (0); -} - -/* - * Scan tree for a host that matches the address. - */ -int -scan_tree(dp, saddr) - struct dirlist *dp; - struct sockaddr *saddr; -{ - int defset, hostset; - - if (dp) { - if (scan_tree(dp->dp_left, saddr)) - return (1); - if (chk_host(dp, saddr, &defset, &hostset)) - return (1); - if (scan_tree(dp->dp_right, saddr)) - return (1); - } - return (0); -} - -/* - * Traverse the dirlist tree and free it up. - */ -void -free_dir(dp) - struct dirlist *dp; -{ - - if (dp) { - free_dir(dp->dp_left); - free_dir(dp->dp_right); - free_host(dp->dp_hosts); - free((caddr_t)dp); - } -} - -/* - * Parse the option string and update fields. - * Option arguments may either be -<option>=<value> or - * -<option> <value> - */ -int -do_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr) - char **cpp, **endcpp; - struct exportlist *ep; - struct grouplist *grp; - int *has_hostp; - int *exflagsp; - struct xucred *cr; -{ - char *cpoptarg, *cpoptend; - char *cp, *endcp, *cpopt, savedc, savedc2; - int allflag, usedarg; - - savedc2 = '\0'; - cpopt = *cpp; - cpopt++; - cp = *endcpp; - savedc = *cp; - *cp = '\0'; - while (cpopt && *cpopt) { - allflag = 1; - usedarg = -2; - if ((cpoptend = strchr(cpopt, ','))) { - *cpoptend++ = '\0'; - if ((cpoptarg = strchr(cpopt, '='))) - *cpoptarg++ = '\0'; - } else { - if ((cpoptarg = strchr(cpopt, '='))) - *cpoptarg++ = '\0'; - else { - *cp = savedc; - nextfield(&cp, &endcp); - **endcpp = '\0'; - if (endcp > cp && *cp != '-') { - cpoptarg = cp; - savedc2 = *endcp; - *endcp = '\0'; - usedarg = 0; - } - } - } - if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { - *exflagsp |= MNT_EXRDONLY; - } else if (cpoptarg && (!strcmp(cpopt, "maproot") || - !(allflag = strcmp(cpopt, "mapall")) || - !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { - usedarg++; - parsecred(cpoptarg, cr); - if (allflag == 0) { - *exflagsp |= MNT_EXPORTANON; - opt_flags |= OP_MAPALL; - } else - opt_flags |= OP_MAPROOT; - } else if (cpoptarg && (!strcmp(cpopt, "mask") || - !strcmp(cpopt, "m"))) { - if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { - syslog(LOG_ERR, "bad mask: %s", cpoptarg); - return (1); - } - usedarg++; - opt_flags |= OP_MASK; - } else if (cpoptarg && (!strcmp(cpopt, "network") || - !strcmp(cpopt, "n"))) { - if (strchr(cpoptarg, '/') != NULL) { - if (debug) - fprintf(stderr, "setting OP_MASKLEN\n"); - opt_flags |= OP_MASKLEN; - } - if (grp->gr_type != GT_NULL) { - syslog(LOG_ERR, "network/host conflict"); - return (1); - } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { - syslog(LOG_ERR, "bad net: %s", cpoptarg); - return (1); - } - grp->gr_type = GT_NET; - *has_hostp = 1; - usedarg++; - opt_flags |= OP_NET; - } else if (!strcmp(cpopt, "alldirs")) { - opt_flags |= OP_ALLDIRS; - } else if (!strcmp(cpopt, "public")) { - *exflagsp |= MNT_EXPUBLIC; - } else if (!strcmp(cpopt, "webnfs")) { - *exflagsp |= (MNT_EXPUBLIC|MNT_EXRDONLY|MNT_EXPORTANON); - opt_flags |= OP_MAPALL; - } else if (cpoptarg && !strcmp(cpopt, "index")) { - ep->ex_indexfile = strdup(cpoptarg); - } else { - syslog(LOG_ERR, "bad opt %s", cpopt); - return (1); - } - if (usedarg >= 0) { - *endcp = savedc2; - **endcpp = savedc; - if (usedarg > 0) { - *cpp = cp; - *endcpp = endcp; - } - return (0); - } - cpopt = cpoptend; - } - **endcpp = savedc; - return (0); -} - -/* - * Translate a character string to the corresponding list of network - * addresses for a hostname. - */ -int -get_host(cp, grp, tgrp) - char *cp; - struct grouplist *grp; - struct grouplist *tgrp; -{ - struct grouplist *checkgrp; - struct addrinfo *ai, *tai, hints; - int ecode; - char host[NI_MAXHOST]; - - if (grp->gr_type != GT_NULL) { - syslog(LOG_ERR, "Bad netgroup type for ip host %s", cp); - return (1); - } - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_CANONNAME; - hints.ai_protocol = IPPROTO_UDP; - ecode = getaddrinfo(cp, NULL, &hints, &ai); - if (ecode != 0) { - syslog(LOG_ERR,"can't get address info for host %s", cp); - return 1; - } - grp->gr_ptr.gt_addrinfo = ai; - while (ai != NULL) { - if (ai->ai_canonname == NULL) { - if (getnameinfo(ai->ai_addr, ai->ai_addrlen, host, - sizeof host, NULL, 0, ninumeric) != 0) - strlcpy(host, "?", sizeof(host)); - ai->ai_canonname = strdup(host); - ai->ai_flags |= AI_CANONNAME; - } - if (debug) - fprintf(stderr, "got host %s\n", ai->ai_canonname); - /* - * Sanity check: make sure we don't already have an entry - * for this host in the grouplist. - */ - for (checkgrp = tgrp; checkgrp != NULL; - checkgrp = checkgrp->gr_next) { - if (checkgrp->gr_type != GT_HOST) - continue; - for (tai = checkgrp->gr_ptr.gt_addrinfo; tai != NULL; - tai = tai->ai_next) { - if (sacmp(tai->ai_addr, ai->ai_addr, NULL) != 0) - continue; - if (debug) - fprintf(stderr, - "ignoring duplicate host %s\n", - ai->ai_canonname); - grp->gr_type = GT_IGNORE; - return (0); - } - } - ai = ai->ai_next; - } - grp->gr_type = GT_HOST; - return (0); -} - -/* - * Free up an exports list component - */ -void -free_exp(ep) - struct exportlist *ep; -{ - - if (ep->ex_defdir) { - free_host(ep->ex_defdir->dp_hosts); - free((caddr_t)ep->ex_defdir); - } - if (ep->ex_fsdir) - free(ep->ex_fsdir); - if (ep->ex_indexfile) - free(ep->ex_indexfile); - free_dir(ep->ex_dirl); - free((caddr_t)ep); -} - -/* - * Free hosts. - */ -void -free_host(hp) - struct hostlist *hp; -{ - struct hostlist *hp2; - - while (hp) { - hp2 = hp; - hp = hp->ht_next; - free((caddr_t)hp2); - } -} - -struct hostlist * -get_ht() -{ - struct hostlist *hp; - - hp = (struct hostlist *)malloc(sizeof (struct hostlist)); - if (hp == (struct hostlist *)NULL) - out_of_mem(); - hp->ht_next = (struct hostlist *)NULL; - hp->ht_flag = 0; - return (hp); -} - -/* - * Out of memory, fatal - */ -void -out_of_mem() -{ - - syslog(LOG_ERR, "out of memory"); - exit(2); -} - -/* - * Do the mount syscall with the update flag to push the export info into - * the kernel. - */ -int -do_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) - struct exportlist *ep; - struct grouplist *grp; - int exflags; - struct xucred *anoncrp; - char *dirp; - int dirplen; - struct statfs *fsb; -{ - struct statfs fsb1; - struct addrinfo *ai; - struct export_args *eap; - char *cp = NULL; - int done; - char savedc = '\0'; - union { - struct ufs_args ua; - struct iso_args ia; - struct msdosfs_args da; - struct ntfs_args na; - } args; - - bzero(&args, sizeof args); - /* XXX, we assume that all xx_args look like ufs_args. */ - args.ua.fspec = 0; - eap = &args.ua.export; - - eap->ex_flags = exflags; - eap->ex_anon = *anoncrp; - eap->ex_indexfile = ep->ex_indexfile; - if (grp->gr_type == GT_HOST) - ai = grp->gr_ptr.gt_addrinfo; - else - ai = NULL; - done = FALSE; - while (!done) { - switch (grp->gr_type) { - case GT_HOST: - if (ai->ai_addr->sa_family == AF_INET6 && have_v6 == 0) - goto skip; - eap->ex_addr = ai->ai_addr; - eap->ex_addrlen = ai->ai_addrlen; - eap->ex_masklen = 0; - break; - case GT_NET: - if (grp->gr_ptr.gt_net.nt_net.ss_family == AF_INET6 && - have_v6 == 0) - goto skip; - eap->ex_addr = - (struct sockaddr *)&grp->gr_ptr.gt_net.nt_net; - eap->ex_addrlen = args.ua.export.ex_addr->sa_len; - eap->ex_mask = - (struct sockaddr *)&grp->gr_ptr.gt_net.nt_mask; - eap->ex_masklen = args.ua.export.ex_mask->sa_len; - break; - case GT_DEFAULT: - eap->ex_addr = NULL; - eap->ex_addrlen = 0; - eap->ex_mask = NULL; - eap->ex_masklen = 0; - break; - case GT_IGNORE: - return(0); - break; - default: - syslog(LOG_ERR, "bad grouptype"); - if (cp) - *cp = savedc; - return (1); - }; - - /* - * XXX: - * Maybe I should just use the fsb->f_mntonname path instead - * of looping back up the dirp to the mount point?? - * Also, needs to know how to export all types of local - * exportable filesystems and not just "ufs". - */ - while (mount(fsb->f_fstypename, dirp, - fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) { - if (cp) - *cp-- = savedc; - else - cp = dirp + dirplen - 1; - if (errno == EPERM) { - if (debug) - warnx("can't change attributes for %s", - dirp); - syslog(LOG_ERR, - "can't change attributes for %s", dirp); - return (1); - } - if (opt_flags & OP_ALLDIRS) { - syslog(LOG_ERR, "could not remount %s: %m", - dirp); - return (1); - } - /* back up over the last component */ - while (*cp == '/' && cp > dirp) - cp--; - while (*(cp - 1) != '/' && cp > dirp) - cp--; - if (cp == dirp) { - if (debug) - warnx("mnt unsucc"); - syslog(LOG_ERR, "can't export %s", dirp); - return (1); - } - savedc = *cp; - *cp = '\0'; - /* Check that we're still on the same filesystem. */ - if (statfs(dirp, &fsb1) != 0 || bcmp(&fsb1.f_fsid, - &fsb->f_fsid, sizeof(fsb1.f_fsid)) != 0) { - *cp = savedc; - syslog(LOG_ERR, "can't export %s", dirp); - return (1); - } - } -skip: - if (ai != NULL) - ai = ai->ai_next; - if (ai == NULL) - done = TRUE; - } - if (cp) - *cp = savedc; - return (0); -} - -/* - * Translate a net address. - * - * If `maskflg' is nonzero, then `cp' is a netmask, not a network address. - */ -int -get_net(cp, net, maskflg) - char *cp; - struct netmsk *net; - int maskflg; -{ - struct netent *np = NULL; - char *name, *p, *prefp; - struct sockaddr_in sin; - struct sockaddr *sa = NULL; - struct addrinfo hints, *ai = NULL; - char netname[NI_MAXHOST]; - long preflen; - - p = prefp = NULL; - if ((opt_flags & OP_MASKLEN) && !maskflg) { - p = strchr(cp, '/'); - *p = '\0'; - prefp = p + 1; - } - - /* - * Check for a numeric address first. We wish to avoid - * possible DNS lookups in getnetbyname(). - */ - if (isxdigit(*cp) || *cp == ':') { - memset(&hints, 0, sizeof hints); - /* Ensure the mask and the network have the same family. */ - if (maskflg && (opt_flags & OP_NET)) - hints.ai_family = net->nt_net.ss_family; - else if (!maskflg && (opt_flags & OP_HAVEMASK)) - hints.ai_family = net->nt_mask.ss_family; - else - hints.ai_family = AF_UNSPEC; - hints.ai_flags = AI_NUMERICHOST; - if (getaddrinfo(cp, NULL, &hints, &ai) == 0) - sa = ai->ai_addr; - if (sa != NULL && ai->ai_family == AF_INET) { - /* - * The address in `cp' is really a network address, so - * use inet_network() to re-interpret this correctly. - * e.g. "127.1" means 127.1.0.0, not 127.0.0.1. - */ - bzero(&sin, sizeof sin); - sin.sin_family = AF_INET; - sin.sin_len = sizeof sin; - sin.sin_addr = inet_makeaddr(inet_network(cp), 0); - if (debug) - fprintf(stderr, "get_net: v4 addr %s\n", - inet_ntoa(sin.sin_addr)); - sa = (struct sockaddr *)&sin; - } - } - if (sa == NULL && (np = getnetbyname(cp)) != NULL) { - bzero(&sin, sizeof sin); - sin.sin_family = AF_INET; - sin.sin_len = sizeof sin; - sin.sin_addr = inet_makeaddr(np->n_net, 0); - sa = (struct sockaddr *)&sin; - } - if (sa == NULL) - goto fail; - - if (maskflg) { - /* The specified sockaddr is a mask. */ - if (checkmask(sa) != 0) - goto fail; - bcopy(sa, &net->nt_mask, sa->sa_len); - opt_flags |= OP_HAVEMASK; - } else { - /* The specified sockaddr is a network address. */ - bcopy(sa, &net->nt_net, sa->sa_len); - - /* Get a network name for the export list. */ - if (np) { - name = np->n_name; - } else if (getnameinfo(sa, sa->sa_len, netname, sizeof netname, - NULL, 0, ninumeric) == 0) { - name = netname; - } else { - goto fail; - } - if ((net->nt_name = strdup(name)) == NULL) - out_of_mem(); - - /* - * Extract a mask from either a "/<masklen>" suffix, or - * from the class of an IPv4 address. - */ - if (opt_flags & OP_MASKLEN) { - preflen = strtol(prefp, NULL, 10); - if (preflen < 0L || preflen == LONG_MAX) - goto fail; - bcopy(sa, &net->nt_mask, sa->sa_len); - if (makemask(&net->nt_mask, (int)preflen) != 0) - goto fail; - opt_flags |= OP_HAVEMASK; - *p = '/'; - } else if (sa->sa_family == AF_INET && - (opt_flags & OP_MASK) == 0) { - in_addr_t addr; - - addr = ((struct sockaddr_in *)sa)->sin_addr.s_addr; - if (IN_CLASSA(addr)) - preflen = 8; - else if (IN_CLASSB(addr)) - preflen = 16; - else if (IN_CLASSC(addr)) - preflen = 24; - else if (IN_CLASSD(addr)) - preflen = 28; - else - preflen = 32; /* XXX */ - - bcopy(sa, &net->nt_mask, sa->sa_len); - makemask(&net->nt_mask, (int)preflen); - opt_flags |= OP_HAVEMASK; - } - } - - if (ai) - freeaddrinfo(ai); - return 0; - -fail: - if (ai) - freeaddrinfo(ai); - return 1; -} - -/* - * Parse out the next white space separated field - */ -void -nextfield(cp, endcp) - char **cp; - char **endcp; -{ - char *p; - - p = *cp; - while (*p == ' ' || *p == '\t') - p++; - if (*p == '\n' || *p == '\0') - *cp = *endcp = p; - else { - *cp = p++; - while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') - p++; - *endcp = p; - } -} - -/* - * Get an exports file line. Skip over blank lines and handle line - * continuations. - */ -int -get_line() -{ - char *p, *cp; - size_t len; - int totlen, cont_line; - - /* - * Loop around ignoring blank lines and getting all continuation lines. - */ - p = line; - totlen = 0; - do { - if ((p = fgetln(exp_file, &len)) == NULL) - return (0); - cp = p + len - 1; - cont_line = 0; - while (cp >= p && - (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { - if (*cp == '\\') - cont_line = 1; - cp--; - len--; - } - if (cont_line) { - *++cp = ' '; - len++; - } - if (linesize < len + totlen + 1) { - linesize = len + totlen + 1; - line = realloc(line, linesize); - if (line == NULL) - out_of_mem(); - } - memcpy(line + totlen, p, len); - totlen += len; - line[totlen] = '\0'; - } while (totlen == 0 || cont_line); - return (1); -} - -/* - * Parse a description of a credential. - */ -void -parsecred(namelist, cr) - char *namelist; - struct xucred *cr; -{ - char *name; - int cnt; - char *names; - struct passwd *pw; - struct group *gr; - int ngroups, groups[NGROUPS + 1]; - - cr->cr_version = XUCRED_VERSION; - /* - * Set up the unprivileged user. - */ - cr->cr_uid = -2; - cr->cr_groups[0] = -2; - cr->cr_ngroups = 1; - /* - * Get the user's password table entry. - */ - names = strsep(&namelist, " \t\n"); - name = strsep(&names, ":"); - if (isdigit(*name) || *name == '-') - pw = getpwuid(atoi(name)); - else - pw = getpwnam(name); - /* - * Credentials specified as those of a user. - */ - if (names == NULL) { - if (pw == NULL) { - syslog(LOG_ERR, "unknown user: %s", name); - return; - } - cr->cr_uid = pw->pw_uid; - ngroups = NGROUPS + 1; - if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) - syslog(LOG_ERR, "too many groups"); - /* - * Convert from int's to gid_t's and compress out duplicate - */ - cr->cr_ngroups = ngroups - 1; - cr->cr_groups[0] = groups[0]; - for (cnt = 2; cnt < ngroups; cnt++) - cr->cr_groups[cnt - 1] = groups[cnt]; - return; - } - /* - * Explicit credential specified as a colon separated list: - * uid:gid:gid:... - */ - if (pw != NULL) - cr->cr_uid = pw->pw_uid; - else if (isdigit(*name) || *name == '-') - cr->cr_uid = atoi(name); - else { - syslog(LOG_ERR, "unknown user: %s", name); - return; - } - cr->cr_ngroups = 0; - while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) { - name = strsep(&names, ":"); - if (isdigit(*name) || *name == '-') { - cr->cr_groups[cr->cr_ngroups++] = atoi(name); - } else { - if ((gr = getgrnam(name)) == NULL) { - syslog(LOG_ERR, "unknown group: %s", name); - continue; - } - cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; - } - } - if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS) - syslog(LOG_ERR, "too many groups"); -} - -#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50) -/* - * Routines that maintain the remote mounttab - */ -void -get_mountlist() -{ - struct mountlist *mlp, **mlpp; - char *host, *dirp, *cp; - char str[STRSIZ]; - FILE *mlfile; - - if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { - if (errno == ENOENT) - return; - else { - syslog(LOG_ERR, "can't open %s", _PATH_RMOUNTLIST); - return; - } - } - mlpp = &mlhead; - while (fgets(str, STRSIZ, mlfile) != NULL) { - cp = str; - host = strsep(&cp, " \t\n"); - dirp = strsep(&cp, " \t\n"); - if (host == NULL || dirp == NULL) - continue; - mlp = (struct mountlist *)malloc(sizeof (*mlp)); - if (mlp == (struct mountlist *)NULL) - out_of_mem(); - strncpy(mlp->ml_host, host, RPCMNT_NAMELEN); - mlp->ml_host[RPCMNT_NAMELEN] = '\0'; - strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); - mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; - mlp->ml_next = (struct mountlist *)NULL; - *mlpp = mlp; - mlpp = &mlp->ml_next; - } - fclose(mlfile); -} - -void -del_mlist(char *hostp, char *dirp) -{ - struct mountlist *mlp, **mlpp; - struct mountlist *mlp2; - FILE *mlfile; - int fnd = 0; - - mlpp = &mlhead; - mlp = mlhead; - while (mlp) { - if (!strcmp(mlp->ml_host, hostp) && - (!dirp || !strcmp(mlp->ml_dirp, dirp))) { - fnd = 1; - mlp2 = mlp; - *mlpp = mlp = mlp->ml_next; - free((caddr_t)mlp2); - } else { - mlpp = &mlp->ml_next; - mlp = mlp->ml_next; - } - } - if (fnd) { - if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { - syslog(LOG_ERR,"can't update %s", _PATH_RMOUNTLIST); - return; - } - mlp = mlhead; - while (mlp) { - fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); - mlp = mlp->ml_next; - } - fclose(mlfile); - } -} - -void -add_mlist(hostp, dirp) - char *hostp, *dirp; -{ - struct mountlist *mlp, **mlpp; - FILE *mlfile; - - mlpp = &mlhead; - mlp = mlhead; - while (mlp) { - if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) - return; - mlpp = &mlp->ml_next; - mlp = mlp->ml_next; - } - mlp = (struct mountlist *)malloc(sizeof (*mlp)); - if (mlp == (struct mountlist *)NULL) - out_of_mem(); - strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN); - mlp->ml_host[RPCMNT_NAMELEN] = '\0'; - strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); - mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; - mlp->ml_next = (struct mountlist *)NULL; - *mlpp = mlp; - if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { - syslog(LOG_ERR, "can't update %s", _PATH_RMOUNTLIST); - return; - } - fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); - fclose(mlfile); -} - -/* - * Free up a group list. - */ -void -free_grp(grp) - struct grouplist *grp; -{ - if (grp->gr_type == GT_HOST) { - if (grp->gr_ptr.gt_addrinfo != NULL) - freeaddrinfo(grp->gr_ptr.gt_addrinfo); - } else if (grp->gr_type == GT_NET) { - if (grp->gr_ptr.gt_net.nt_name) - free(grp->gr_ptr.gt_net.nt_name); - } - free((caddr_t)grp); -} - -#ifdef DEBUG -void -SYSLOG(int pri, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - va_end(ap); -} -#endif /* DEBUG */ - -/* - * Check options for consistency. - */ -int -check_options(dp) - struct dirlist *dp; -{ - - if (dp == (struct dirlist *)NULL) - return (1); - if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL)) { - syslog(LOG_ERR, "-mapall and -maproot mutually exclusive"); - return (1); - } - if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { - syslog(LOG_ERR, "-mask requires -network"); - return (1); - } - if ((opt_flags & OP_NET) && (opt_flags & OP_HAVEMASK) == 0) { - syslog(LOG_ERR, "-network requires mask specification"); - return (1); - } - if ((opt_flags & OP_MASK) && (opt_flags & OP_MASKLEN)) { - syslog(LOG_ERR, "-mask and /masklen are mutually exclusive"); - return (1); - } - if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { - syslog(LOG_ERR, "-alldirs has multiple directories"); - return (1); - } - return (0); -} - -/* - * Check an absolute directory path for any symbolic links. Return true - */ -int -check_dirpath(dirp) - char *dirp; -{ - char *cp; - int ret = 1; - struct stat sb; - - cp = dirp + 1; - while (*cp && ret) { - if (*cp == '/') { - *cp = '\0'; - if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) - ret = 0; - *cp = '/'; - } - cp++; - } - if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) - ret = 0; - return (ret); -} - -/* - * Make a netmask according to the specified prefix length. The ss_family - * and other non-address fields must be initialised before calling this. - */ -int -makemask(struct sockaddr_storage *ssp, int bitlen) -{ - u_char *p; - int bits, i, len; - - if ((p = sa_rawaddr((struct sockaddr *)ssp, &len)) == NULL) - return (-1); - if (bitlen > len * NBBY) - return (-1); - - for (i = 0; i < len; i++) { - bits = (bitlen > NBBY) ? NBBY : bitlen; - *p++ = (1 << bits) - 1; - bitlen -= bits; - } - return 0; -} - -/* - * Check that the sockaddr is a valid netmask. Returns 0 if the mask - * is acceptable (i.e. of the form 1...10....0). - */ -int -checkmask(struct sockaddr *sa) -{ - u_char *mask; - int i, len; - - if ((mask = sa_rawaddr(sa, &len)) == NULL) - return (-1); - - for (i = 0; i < len; i++) - if (mask[i] != 0xff) - break; - if (i < len) { - if (~mask[i] & (u_char)(~mask[i] + 1)) - return (-1); - i++; - } - for (; i < len; i++) - if (mask[i] != 0) - return (-1); - return (0); -} - -/* - * Compare two sockaddrs according to a specified mask. Return zero if - * `sa1' matches `sa2' when filtered by the netmask in `samask'. - * If samask is NULL, perform a full comparision. - */ -int -sacmp(struct sockaddr *sa1, struct sockaddr *sa2, struct sockaddr *samask) -{ - unsigned char *p1, *p2, *mask; - int len, i; - - if (sa1->sa_family != sa2->sa_family || - (p1 = sa_rawaddr(sa1, &len)) == NULL || - (p2 = sa_rawaddr(sa2, NULL)) == NULL) - return (1); - - switch (sa1->sa_family) { - case AF_INET6: - if (((struct sockaddr_in6 *)sa1)->sin6_scope_id != - ((struct sockaddr_in6 *)sa2)->sin6_scope_id) - return (1); - break; - } - - /* Simple binary comparison if no mask specified. */ - if (samask == NULL) - return (memcmp(p1, p2, len)); - - /* Set up the mask, and do a mask-based comparison. */ - if (sa1->sa_family != samask->sa_family || - (mask = sa_rawaddr(samask, NULL)) == NULL) - return (1); - - for (i = 0; i < len; i++) - if ((p1[i] & mask[i]) != (p2[i] & mask[i])) - return (1); - return (0); -} - -/* - * Return a pointer to the part of the sockaddr that contains the - * raw address, and set *nbytes to its length in bytes. Returns - * NULL if the address family is unknown. - */ -void * -sa_rawaddr(struct sockaddr *sa, int *nbytes) { - void *p; - int len; - - switch (sa->sa_family) { - case AF_INET: - len = sizeof(((struct sockaddr_in *)sa)->sin_addr); - p = &((struct sockaddr_in *)sa)->sin_addr; - break; - case AF_INET6: - len = sizeof(((struct sockaddr_in6 *)sa)->sin6_addr); - p = &((struct sockaddr_in6 *)sa)->sin6_addr; - break; - default: - p = NULL; - len = 0; - } - - if (nbytes != NULL) - *nbytes = len; - return (p); -} - -void -huphandler(int sig) -{ - got_sighup = 1; -} - -void terminate(sig) -int sig; -{ - close(mountdlockfd); - unlink(MOUNTDLOCK); - rpcb_unset(RPCPROG_MNT, RPCMNT_VER1, NULL); - rpcb_unset(RPCPROG_MNT, RPCMNT_VER3, NULL); - exit (0); -} diff --git a/sbin/mountd/netgroup.5 b/sbin/mountd/netgroup.5 deleted file mode 100644 index ba58b2c..0000000 --- a/sbin/mountd/netgroup.5 +++ /dev/null @@ -1,194 +0,0 @@ -.\" Copyright (c) 1992, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" 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. -.\" -.\" @(#)netgroup.5 8.2 (Berkeley) 12/11/93 -.\" $FreeBSD$ -.\" -.Dd December 11, 1993 -.Dt NETGROUP 5 -.Os -.Sh NAME -.Nm netgroup -.Nd defines network groups -.Sh SYNOPSIS -.Nm -.Sh DESCRIPTION -The -.Nm -file -specifies ``netgroups'', which are sets of -.Sy (host, user, domain) -tuples that are to be given similar network access. -.Pp -Each line in the file -consists of a netgroup name followed by a list of the members of the -netgroup. -Each member can be either the name of another netgroup or a specification -of a tuple as follows: -.Bd -literal -offset indent -(host, user, domain) -.Ed -.Pp -where the -.Sy host , -.Sy user , -and -.Sy domain -are character string names for the corresponding component. -Any of the comma separated fields may be empty to specify a ``wildcard'' value -or may consist of the string ``-'' to specify ``no valid value''. -The members of the list may be separated by whitespace and/or commas; -the ``\e'' character may be used at the end of a line to specify -line continuation. -Lines are limited to 1024 characters. -The functions specified in -.Xr getnetgrent 3 -should normally be used to access the -.Nm -database. -.Pp -Lines that begin with a # are treated as comments. -.Sh NIS/YP INTERACTION -On most other platforms, -.Nm Ns s -are only used in conjunction with -.Tn NIS -and local -.Pa /etc/netgroup -files are ignored. -With -.Fx , -.Nm Ns s -can be used with either -.Tn NIS -or local files, but there are certain -caveats to consider. -The existing -.Nm -system is extremely inefficient where -.Fn innetgr 3 -lookups are concerned since -.Nm -memberships are computed on the fly. -By contrast, the -.Tn NIS -.Nm -database consists of three separate maps (netgroup, netgroup.byuser -and netgroup.byhost) that are keyed to allow -.Fn innetgr 3 -lookups to be done quickly. -The -.Fx -.Nm -system can interact with the -.Tn NIS -.Nm -maps in the following ways: -.Bl -bullet -offset indent -.It -If the -.Pa /etc/netgroup -file does not exist, or it exists and is empty, or -it exists and contains only a -.Sq + , -and -.Tn NIS -is running, -.Nm -lookups will be done exclusively through -.Tn NIS , -with -.Fn innetgr 3 -taking advantage of the netgroup.byuser and -netgroup.byhost maps to speed up searches. -(This -is more or less compatible with the behavior of SunOS and -similar platforms.) -.It -If the -.Pa /etc/netgroup -exists and contains only local -.Nm -information (with no -.Tn NIS -.Sq + -token), then only the local -.Nm -information will be processed (and -.Tn NIS -will be ignored). -.It -If -.Pa /etc/netgroup -exists and contains both local netgroup data -.Pa and -the -.Tn NIS -.Sq + -token, the local data and the -.Tn NIS -netgroup -map will be processed as a single combined -.Nm -database. -While this configuration is the most flexible, it -is also the least efficient: in particular, -.Fn innetgr 3 -lookups will be especially slow if the -database is large. -.El -.Sh FILES -.Bl -tag -width /etc/netgroup -compact -.It Pa /etc/netgroup -the netgroup database -.El -.Sh SEE ALSO -.Xr getnetgrent 3 , -.Xr exports 5 -.Sh COMPATIBILITY -The file format is compatible with that of various vendors, however it -appears that not all vendors use an identical format. -.Sh BUGS -The interpretation of access restrictions based on the member tuples of a -netgroup is left up to the various network applications. -Also, it is not obvious how the domain specification -applies to the -.Bx -environment. -.Pp -The -.Nm -database should be stored in the form of a -hashed -.Xr db 3 -database just like the -.Xr passwd 5 -database to speed up reverse lookups. diff --git a/sbin/mountd/pathnames.h b/sbin/mountd/pathnames.h deleted file mode 100644 index aa1c555..0000000 --- a/sbin/mountd/pathnames.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * 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. - * - * @(#)pathnames.h 8.1 (Berkeley) 6/5/93 - */ -#include <paths.h> - -#define _PATH_EXPORTS "/etc/exports" -#define _PATH_RMOUNTLIST "/var/db/mountdtab" -#define _PATH_MOUNTDPID "/var/run/mountd.pid" diff --git a/sbin/nfsd/Makefile b/sbin/nfsd/Makefile deleted file mode 100644 index e43192a..0000000 --- a/sbin/nfsd/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# @(#)Makefile 8.1 (Berkeley) 6/5/93 -# $FreeBSD$ - -PROG= nfsd -WARNS= 0 -MAN= nfsd.8 - -.include <bsd.prog.mk> diff --git a/sbin/nfsd/nfsd.8 b/sbin/nfsd/nfsd.8 deleted file mode 100644 index 76d4247..0000000 --- a/sbin/nfsd/nfsd.8 +++ /dev/null @@ -1,191 +0,0 @@ -.\" Copyright (c) 1989, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" 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. -.\" -.\" @(#)nfsd.8 8.4 (Berkeley) 3/29/95 -.\" $FreeBSD$ -.\" -.Dd March 29, 1995 -.Dt NFSD 8 -.Os -.Sh NAME -.Nm nfsd -.Nd remote -.Tn NFS -server -.Sh SYNOPSIS -.Nm -.Op Fl ardut -.Op Fl n Ar num_servers -.Op Fl h Ar bindip -.Sh DESCRIPTION -The -.Nm -utility runs on a server machine to service -.Tn NFS -requests from client machines. -At least one -.Nm -must be running for a machine to operate as a server. -.Pp -Unless otherwise specified, four servers for -.Tn UDP -transport are started. -.Pp -The following options are available: -.Bl -tag -width Ds -.It Fl r -Register the -.Tn NFS -service with -.Xr rpcbind 8 -without creating any servers. -This option can be used along with the -.Fl u -or -.Fl t -options to re-register NFS if the rpcbind server is restarted. -.It Fl d -Unregister the -.Tn NFS -service with -.Xr rpcbind 8 -without creating any servers. -.It Fl n -Specifies how many servers to create. -.It Fl h Ar bindip -Specifies which IP address or hostname to bind to on the local host. -This option is recommended when a host has multiple interfaces. -Multiple -.Fl h -options may be specified. -.It Fl a -Specifies that nfsd should bind to the wildcard IP address. -This is the default if no -.Fl h -options are given. It may also be specified in addition to any -.Fl h -options given. Note that NFS/UDP does not operate properly when -bound to the wildcard IP address whether you use -a or do not use -h. -.It Fl t -Serve -.Tn TCP NFS -clients. -.It Fl u -Serve -.Tn UDP NFS -clients. -.El -.Pp -For example, -.Dq Li "nfsd -u -t -n 6" -serves -.Tn UDP -and -.Tn TCP -transports using six daemons. -.Pp -A server should run enough daemons to handle -the maximum level of concurrency from its clients, -typically four to six. -.Pp -The -.Nm -utility listens for service requests at the port indicated in the -.Tn NFS -server specification; see -.%T "Network File System Protocol Specification" , -RFC1094 and -.%T "NFS: Network File System Version 3 Protocol Specification" . -.Pp -If -.Nm -detects that -.Tn NFS -is not loaded in the running kernel, it will attempt -to load a loadable kernel module containing -.Tn NFS -support using -.Xr kldload 8 -by way of -.Xr vfsload 3 . -If this fails, or no -.Tn NFS -KLD is available, -.Nm -will exit with an error. -.Pp -If -.Nm -is to be run on a host with multiple interfaces or interface aliases, use -of the -.Fl h -option is recommended. If you do not use the option NFS may not respond to -UDP packets from the same IP address they were sent to. Use of this option -is also recommended when securing NFS exports on a firewalling machine such -that the NFS sockets can only be accessed by the inside interface. -The -.Nm ipfw -utility -would then be used to block nfs-related packets that come in on the outside -interface. -.Pp -The -.Nm -utility has to be terminated with -.Dv SIGUSR1 -and cannot be killed with -.Dv SIGTERM -or -.Dv SIGQUIT . -The -.Nm -utility needs to ignore these signals in order to stay alive as long -as possible during a shutdown, otherwise loopback mounts will -not be able to unmount. -If you have to kill -.Nm -just do a -.Dq Li "kill -USR1 <PID of master nfsd>" -.Sh DIAGNOSTICS -.Ex -std -.Sh SEE ALSO -.Xr nfsstat 1 , -.Xr nfssvc 2 , -.Xr ipfw 8 , -.Xr kldload 8 , -.Xr mountd 8 , -.Xr nfsiod 8 , -.Xr rpcbind 8 -.Sh HISTORY -The -.Nm -utility first appeared in -.Bx 4.4 . diff --git a/sbin/nfsd/nfsd.c b/sbin/nfsd/nfsd.c deleted file mode 100644 index 39fd0c5..0000000 --- a/sbin/nfsd/nfsd.c +++ /dev/null @@ -1,845 +0,0 @@ -/* - * Copyright (c) 1989, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Rick Macklem at The University of Guelph. - * - * 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. - */ - -#ifndef lint -static const char copyright[] = -"@(#) Copyright (c) 1989, 1993, 1994\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)nfsd.c 8.9 (Berkeley) 3/29/95"; -#endif -static const char rcsid[] = - "$FreeBSD$"; -#endif /* not lint */ - -#include <sys/param.h> -#include <sys/syslog.h> -#include <sys/wait.h> -#include <sys/mount.h> -#include <sys/linker.h> -#include <sys/module.h> - -#include <rpc/rpc.h> -#include <rpc/pmap_clnt.h> - -#include <netdb.h> -#include <arpa/inet.h> -#include <nfs/rpcv2.h> -#include <nfs/nfsproto.h> -#include <nfsserver/nfs.h> - -#include <err.h> -#include <errno.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <netdb.h> - -/* Global defs */ -#ifdef DEBUG -#define syslog(e, s...) fprintf(stderr,s) -int debug = 1; -#else -int debug = 0; -#endif - -struct nfsd_srvargs nsd; - -#define MAXNFSDCNT 20 -#define DEFNFSDCNT 4 -pid_t children[MAXNFSDCNT]; /* PIDs of children */ -int nfsdcnt; /* number of children */ - -void cleanup(int); -void child_cleanup(int); -void killchildren(void); -void nfsd_exit(int); -void nonfs(int); -void reapchild(int); -int setbindhost(struct addrinfo **ia, const char *bindhost, - struct addrinfo hints); -void start_server(int); -void unregistration(void); -void usage(void); - -/* - * Nfs server daemon mostly just a user context for nfssvc() - * - * 1 - do file descriptor and signal cleanup - * 2 - fork the nfsd(s) - * 3 - create server socket(s) - * 4 - register socket with rpcbind - * - * For connectionless protocols, just pass the socket into the kernel via. - * nfssvc(). - * For connection based sockets, loop doing accepts. When you get a new - * socket from accept, pass the msgsock into the kernel via. nfssvc(). - * The arguments are: - * -r - reregister with rpcbind - * -d - unregister with rpcbind - * -t - support tcp nfs clients - * -u - support udp nfs clients - * followed by "n" which is the number of nfsds' to fork off - */ -int -main(argc, argv, envp) - int argc; - char *argv[], *envp[]; -{ - struct nfsd_args nfsdargs; - struct addrinfo *ai_udp, *ai_tcp, *ai_udp6, *ai_tcp6, hints; - struct netconfig *nconf_udp, *nconf_tcp, *nconf_udp6, *nconf_tcp6; - struct netbuf nb_udp, nb_tcp, nb_udp6, nb_tcp6; - struct sockaddr_in inetpeer; - struct sockaddr_in6 inet6peer; - fd_set ready, sockbits; - fd_set v4bits, v6bits; - int ch, connect_type_cnt, i, len, maxsock, msgsock; - int on = 1, unregister, reregister, sock; - int tcp6sock, ip6flag, tcpflag, tcpsock; - int udpflag, ecode, s, srvcnt; - int bindhostc, bindanyflag, rpcbreg, rpcbregcnt; - char **bindhost = NULL; - pid_t pid; - - if (modfind("nfsserver") < 0) { - /* Not present in kernel, try loading it */ - if (kldload("nfsserver") < 0 || modfind("nfsserver") < 0) - errx(1, "NFS server is not available"); - } - - nfsdcnt = DEFNFSDCNT; - unregister = reregister = tcpflag = maxsock = 0; - bindanyflag = udpflag = connect_type_cnt = bindhostc = 0; -#define GETOPT "ah:n:rdtu" -#define USAGE "[-ardtu] [-n num_servers] [-h bindip]" - while ((ch = getopt(argc, argv, GETOPT)) != -1) - switch (ch) { - case 'a': - bindanyflag = 1; - break; - case 'n': - nfsdcnt = atoi(optarg); - if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) { - warnx("nfsd count %d; reset to %d", nfsdcnt, - DEFNFSDCNT); - nfsdcnt = DEFNFSDCNT; - } - break; - case 'h': - bindhostc++; - bindhost = realloc(bindhost,sizeof(char *)*bindhostc); - if (bindhost == NULL) - errx(1, "Out of memory"); - bindhost[bindhostc-1] = strdup(optarg); - if (bindhost[bindhostc-1] == NULL) - errx(1, "Out of memory"); - break; - case 'r': - reregister = 1; - break; - case 'd': - unregister = 1; - break; - case 't': - tcpflag = 1; - break; - case 'u': - udpflag = 1; - break; - default: - case '?': - usage(); - }; - if (!tcpflag && !udpflag) - udpflag = 1; - argv += optind; - argc -= optind; - - /* - * XXX - * Backward compatibility, trailing number is the count of daemons. - */ - if (argc > 1) - usage(); - if (argc == 1) { - nfsdcnt = atoi(argv[0]); - if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) { - warnx("nfsd count %d; reset to %d", nfsdcnt, - DEFNFSDCNT); - nfsdcnt = DEFNFSDCNT; - } - } - - ip6flag = 1; - s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); - if (s == -1) { - if (errno != EPROTONOSUPPORT) - err(1, "socket"); - ip6flag = 0; - } else if (getnetconfigent("udp6") == NULL || - getnetconfigent("tcp6") == NULL) { - ip6flag = 0; - } - if (s != -1) - close(s); - - if (bindhostc == 0 || bindanyflag) { - bindhostc++; - bindhost = realloc(bindhost,sizeof(char *)*bindhostc); - if (bindhost == NULL) - errx(1, "Out of memory"); - bindhost[bindhostc-1] = strdup("*"); - if (bindhost[bindhostc-1] == NULL) - errx(1, "Out of memory"); - } - - if (unregister) { - unregistration(); - exit (0); - } - if (reregister) { - if (udpflag) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_DGRAM; - hints.ai_protocol = IPPROTO_UDP; - ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp); - if (ecode != 0) - err(1, "getaddrinfo udp: %s", gai_strerror(ecode)); - nconf_udp = getnetconfigent("udp"); - if (nconf_udp == NULL) - err(1, "getnetconfigent udp failed"); - nb_udp.buf = ai_udp->ai_addr; - nb_udp.len = nb_udp.maxlen = ai_udp->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp, &nb_udp)) || - (!rpcb_set(RPCPROG_NFS, 3, nconf_udp, &nb_udp))) - err(1, "rpcb_set udp failed"); - freeaddrinfo(ai_udp); - } - if (udpflag && ip6flag) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET6; - hints.ai_socktype = SOCK_DGRAM; - hints.ai_protocol = IPPROTO_UDP; - ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp6); - if (ecode != 0) - err(1, "getaddrinfo udp6: %s", gai_strerror(ecode)); - nconf_udp6 = getnetconfigent("udp6"); - if (nconf_udp6 == NULL) - err(1, "getnetconfigent udp6 failed"); - nb_udp6.buf = ai_udp6->ai_addr; - nb_udp6.len = nb_udp6.maxlen = ai_udp6->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp6, &nb_udp6)) || - (!rpcb_set(RPCPROG_NFS, 3, nconf_udp6, &nb_udp6))) - err(1, "rpcb_set udp6 failed"); - freeaddrinfo(ai_udp6); - } - if (tcpflag) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = IPPROTO_TCP; - ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp); - if (ecode != 0) - err(1, "getaddrinfo tcp: %s", gai_strerror(ecode)); - nconf_tcp = getnetconfigent("tcp"); - if (nconf_tcp == NULL) - err(1, "getnetconfigent tcp failed"); - nb_tcp.buf = ai_tcp->ai_addr; - nb_tcp.len = nb_tcp.maxlen = ai_tcp->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp, &nb_tcp)) || - (!rpcb_set(RPCPROG_NFS, 3, nconf_tcp, &nb_tcp))) - err(1, "rpcb_set tcp failed"); - freeaddrinfo(ai_tcp); - } - if (tcpflag && ip6flag) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET6; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = IPPROTO_TCP; - ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp6); - if (ecode != 0) - err(1, "getaddrinfo tcp6: %s", gai_strerror(ecode)); - nconf_tcp6 = getnetconfigent("tcp6"); - if (nconf_tcp6 == NULL) - err(1, "getnetconfigent tcp6 failed"); - nb_tcp6.buf = ai_tcp6->ai_addr; - nb_tcp6.len = nb_tcp6.maxlen = ai_tcp6->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp6, &nb_tcp6)) || - (!rpcb_set(RPCPROG_NFS, 3, nconf_tcp6, &nb_tcp6))) - err(1, "rpcb_set tcp6 failed"); - freeaddrinfo(ai_tcp6); - } - exit (0); - } - if (debug == 0) { - daemon(0, 0); - (void)signal(SIGHUP, SIG_IGN); - (void)signal(SIGINT, SIG_IGN); - /* - * nfsd sits in the kernel most of the time. It needs - * to ignore SIGTERM/SIGQUIT in order to stay alive as long - * as possible during a shutdown, otherwise loopback - * mounts will not be able to unmount. - */ - (void)signal(SIGTERM, SIG_IGN); - (void)signal(SIGQUIT, SIG_IGN); - } - (void)signal(SIGSYS, nonfs); - (void)signal(SIGCHLD, reapchild); - - openlog("nfsd", LOG_PID, LOG_DAEMON); - - /* If we use UDP only, we start the last server below. */ - srvcnt = tcpflag ? nfsdcnt : nfsdcnt - 1; - for (i = 0; i < srvcnt; i++) { - switch ((pid = fork())) { - case -1: - syslog(LOG_ERR, "fork: %m"); - nfsd_exit(1); - case 0: - break; - default: - children[i] = pid; - continue; - } - (void)signal(SIGUSR1, child_cleanup); - setproctitle("server"); - - start_server(0); - } - - (void)signal(SIGUSR1, cleanup); - FD_ZERO(&v4bits); - FD_ZERO(&v6bits); - - rpcbregcnt = 0; - /* Set up the socket for udp and rpcb register it. */ - if (udpflag) { - rpcbreg = 0; - for (i = 0; i < bindhostc; i++) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_DGRAM; - hints.ai_protocol = IPPROTO_UDP; - if (setbindhost(&ai_udp, bindhost[i], hints) == 0) { - rpcbreg = 1; - rpcbregcnt++; - if ((sock = socket(ai_udp->ai_family, - ai_udp->ai_socktype, - ai_udp->ai_protocol)) < 0) { - syslog(LOG_ERR, - "can't create udp socket"); - nfsd_exit(1); - } - if (bind(sock, ai_udp->ai_addr, - ai_udp->ai_addrlen) < 0) { - syslog(LOG_ERR, - "can't bind udp addr %s: %m", - bindhost[i]); - nfsd_exit(1); - } - freeaddrinfo(ai_udp); - nfsdargs.sock = sock; - nfsdargs.name = NULL; - nfsdargs.namelen = 0; - if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { - syslog(LOG_ERR, "can't Add UDP socket"); - nfsd_exit(1); - } - (void)close(sock); - } - } - if (rpcbreg == 1) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_DGRAM; - hints.ai_protocol = IPPROTO_UDP; - ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp); - if (ecode != 0) { - syslog(LOG_ERR, "getaddrinfo udp: %s", - gai_strerror(ecode)); - nfsd_exit(1); - } - nconf_udp = getnetconfigent("udp"); - if (nconf_udp == NULL) - err(1, "getnetconfigent udp failed"); - nb_udp.buf = ai_udp->ai_addr; - nb_udp.len = nb_udp.maxlen = ai_udp->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp, &nb_udp)) || - (!rpcb_set(RPCPROG_NFS, 3, nconf_udp, &nb_udp))) - err(1, "rpcb_set udp failed"); - freeaddrinfo(ai_udp); - } - } - - /* Set up the socket for udp6 and rpcb register it. */ - if (udpflag && ip6flag) { - rpcbreg = 0; - for (i = 0; i < bindhostc; i++) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET6; - hints.ai_socktype = SOCK_DGRAM; - hints.ai_protocol = IPPROTO_UDP; - if (setbindhost(&ai_udp6, bindhost[i], hints) == 0) { - rpcbreg = 1; - rpcbregcnt++; - if ((sock = socket(ai_udp6->ai_family, - ai_udp6->ai_socktype, - ai_udp6->ai_protocol)) < 0) { - syslog(LOG_ERR, - "can't create udp6 socket"); - nfsd_exit(1); - } - if (setsockopt(sock, IPPROTO_IPV6, - IPV6_BINDV6ONLY, - &on, sizeof on) < 0) { - syslog(LOG_ERR, - "can't set v6-only binding for " - "udp6 socket: %m"); - nfsd_exit(1); - } - if (bind(sock, ai_udp6->ai_addr, - ai_udp6->ai_addrlen) < 0) { - syslog(LOG_ERR, - "can't bind udp6 addr %s: %m", - bindhost[i]); - nfsd_exit(1); - } - freeaddrinfo(ai_udp6); - nfsdargs.sock = sock; - nfsdargs.name = NULL; - nfsdargs.namelen = 0; - if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { - syslog(LOG_ERR, - "can't add UDP6 socket"); - nfsd_exit(1); - } - (void)close(sock); - } - } - if (rpcbreg == 1) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET6; - hints.ai_socktype = SOCK_DGRAM; - hints.ai_protocol = IPPROTO_UDP; - ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp6); - if (ecode != 0) { - syslog(LOG_ERR, "getaddrinfo udp6: %s", - gai_strerror(ecode)); - nfsd_exit(1); - } - nconf_udp6 = getnetconfigent("udp6"); - if (nconf_udp6 == NULL) - err(1, "getnetconfigent udp6 failed"); - nb_udp6.buf = ai_udp6->ai_addr; - nb_udp6.len = nb_udp6.maxlen = ai_udp6->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp6, &nb_udp6)) || - (!rpcb_set(RPCPROG_NFS, 3, nconf_udp6, &nb_udp6))) - err(1, "rpcb_set udp6 failed"); - freeaddrinfo(ai_udp6); - } - } - - /* Set up the socket for tcp and rpcb register it. */ - if (tcpflag) { - rpcbreg = 0; - for (i = 0; i < bindhostc; i++) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = IPPROTO_TCP; - if (setbindhost(&ai_tcp, bindhost[i], hints) == 0) { - rpcbreg = 1; - rpcbregcnt++; - if ((tcpsock = socket(AF_INET, SOCK_STREAM, - 0)) < 0) { - syslog(LOG_ERR, - "can't create tpc socket"); - nfsd_exit(1); - } - if (setsockopt(tcpsock, SOL_SOCKET, - SO_REUSEADDR, - (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, - "setsockopt SO_REUSEADDR: %m"); - if (bind(tcpsock, ai_tcp->ai_addr, - ai_tcp->ai_addrlen) < 0) { - syslog(LOG_ERR, - "can't bind tcp addr %s: %m", - bindhost[i]); - nfsd_exit(1); - } - if (listen(tcpsock, 5) < 0) { - syslog(LOG_ERR, "listen failed"); - nfsd_exit(1); - } - freeaddrinfo(ai_tcp); - FD_SET(tcpsock, &sockbits); - FD_SET(tcpsock, &v4bits); - maxsock = tcpsock; - connect_type_cnt++; - } - } - if (rpcbreg == 1) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = IPPROTO_TCP; - ecode = getaddrinfo(NULL, "nfs", &hints, - &ai_tcp); - if (ecode != 0) { - syslog(LOG_ERR, "getaddrinfo tcp: %s", - gai_strerror(ecode)); - nfsd_exit(1); - } - nconf_tcp = getnetconfigent("tcp"); - if (nconf_tcp == NULL) - err(1, "getnetconfigent tcp failed"); - nb_tcp.buf = ai_tcp->ai_addr; - nb_tcp.len = nb_tcp.maxlen = ai_tcp->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp, - &nb_tcp)) || (!rpcb_set(RPCPROG_NFS, 3, - nconf_tcp, &nb_tcp))) - err(1, "rpcb_set tcp failed"); - freeaddrinfo(ai_tcp); - } - } - - /* Set up the socket for tcp6 and rpcb register it. */ - if (tcpflag && ip6flag) { - rpcbreg = 0; - for (i = 0; i < bindhostc; i++) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET6; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = IPPROTO_TCP; - if (setbindhost(&ai_tcp6, bindhost[i], hints) == 0) { - rpcbreg = 1; - rpcbregcnt++; - if ((tcp6sock = socket(ai_tcp6->ai_family, - ai_tcp6->ai_socktype, - ai_tcp6->ai_protocol)) < 0) { - syslog(LOG_ERR, - "can't create tcp6 socket"); - nfsd_exit(1); - } - if (setsockopt(tcp6sock, SOL_SOCKET, - SO_REUSEADDR, - (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, - "setsockopt SO_REUSEADDR: %m"); - if (setsockopt(tcp6sock, IPPROTO_IPV6, - IPV6_BINDV6ONLY, &on, sizeof on) < 0) { - syslog(LOG_ERR, - "can't set v6-only binding for tcp6 " - "socket: %m"); - nfsd_exit(1); - } - if (bind(tcp6sock, ai_tcp6->ai_addr, - ai_tcp6->ai_addrlen) < 0) { - syslog(LOG_ERR, - "can't bind tcp6 addr %s: %m", - bindhost[i]); - nfsd_exit(1); - } - if (listen(tcp6sock, 5) < 0) { - syslog(LOG_ERR, "listen failed"); - nfsd_exit(1); - } - freeaddrinfo(ai_tcp6); - FD_SET(tcp6sock, &sockbits); - FD_SET(tcp6sock, &v6bits); - if (maxsock < tcp6sock) - maxsock = tcp6sock; - connect_type_cnt++; - } - } - if (rpcbreg == 1) { - memset(&hints, 0, sizeof hints); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = AF_INET6; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = IPPROTO_TCP; - ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp6); - if (ecode != 0) { - syslog(LOG_ERR, "getaddrinfo tcp6: %s", - gai_strerror(ecode)); - nfsd_exit(1); - } - nconf_tcp6 = getnetconfigent("tcp6"); - if (nconf_tcp6 == NULL) - err(1, "getnetconfigent tcp6 failed"); - nb_tcp6.buf = ai_tcp6->ai_addr; - nb_tcp6.len = nb_tcp6.maxlen = ai_tcp6->ai_addrlen; - if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp6, &nb_tcp6)) || - (!rpcb_set(RPCPROG_NFS, 3, nconf_tcp6, &nb_tcp6))) - err(1, "rpcb_set tcp6 failed"); - freeaddrinfo(ai_tcp6); - } - } - - if (rpcbregcnt == 0) { - syslog(LOG_ERR, "rpcb_set() failed, nothing to do: %m"); - nfsd_exit(1); - } - - if (tcpflag && connect_type_cnt == 0) { - syslog(LOG_ERR, "tcp connects == 0, nothing to do: %m"); - nfsd_exit(1); - } - - setproctitle("master"); - /* - * We always want a master to have a clean way to to shut nfsd down - * (with unregistration): if the master is killed, it unregisters and - * kills all children. If we run for UDP only (and so do not have to - * loop waiting waiting for accept), we instead make the parent - * a "server" too. start_server will not return. - */ - if (!tcpflag) - start_server(1); - - /* - * Loop forever accepting connections and passing the sockets - * into the kernel for the mounts. - */ - for (;;) { - ready = sockbits; - if (connect_type_cnt > 1) { - if (select(maxsock + 1, - &ready, NULL, NULL, NULL) < 1) { - syslog(LOG_ERR, "select failed: %m"); - nfsd_exit(1); - } - } - for (tcpsock = 0; tcpsock <= maxsock; tcpsock++) { - if (FD_ISSET(tcpsock, &ready)) { - if (FD_ISSET(tcpsock, &v4bits)) { - len = sizeof(inetpeer); - if ((msgsock = accept(tcpsock, - (struct sockaddr *)&inetpeer, &len)) < 0) { - syslog(LOG_ERR, "accept failed: %m"); - nfsd_exit(1); - } - memset(inetpeer.sin_zero, 0, - sizeof(inetpeer.sin_zero)); - if (setsockopt(msgsock, SOL_SOCKET, - SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, - "setsockopt SO_KEEPALIVE: %m"); - nfsdargs.sock = msgsock; - nfsdargs.name = (caddr_t)&inetpeer; - nfsdargs.namelen = len; - nfssvc(NFSSVC_ADDSOCK, &nfsdargs); - (void)close(msgsock); - } else if (FD_ISSET(tcpsock, &v6bits)) { - len = sizeof(inet6peer); - if ((msgsock = accept(tcpsock, - (struct sockaddr *)&inet6peer, - &len)) < 0) { - syslog(LOG_ERR, - "accept failed: %m"); - nfsd_exit(1); - } - if (setsockopt(msgsock, SOL_SOCKET, - SO_KEEPALIVE, (char *)&on, - sizeof(on)) < 0) - syslog(LOG_ERR, "setsockopt " - "SO_KEEPALIVE: %m"); - nfsdargs.sock = msgsock; - nfsdargs.name = (caddr_t)&inet6peer; - nfsdargs.namelen = len; - nfssvc(NFSSVC_ADDSOCK, &nfsdargs); - (void)close(msgsock); - } - } - } - } -} - -int -setbindhost(struct addrinfo **ai, const char *bindhost, struct addrinfo hints) -{ - int ecode; - u_int32_t host_addr[4]; /* IPv4 or IPv6 */ - const char *hostptr; - - if (bindhost == NULL || strcmp("*", bindhost) == 0) - hostptr = NULL; - else - hostptr = bindhost; - - if (hostptr != NULL) { - switch (hints.ai_family) { - case AF_INET: - if (inet_pton(AF_INET, hostptr, host_addr) == 1) { - hints.ai_flags = AI_NUMERICHOST; - } else { - if (inet_pton(AF_INET6, hostptr, - host_addr) == 1) - return (1); - } - break; - case AF_INET6: - if (inet_pton(AF_INET6, hostptr, host_addr) == 1) { - hints.ai_flags = AI_NUMERICHOST; - } else { - if (inet_pton(AF_INET, hostptr, - host_addr) == 1) - return (1); - } - break; - default: - break; - } - } - - ecode = getaddrinfo(hostptr, "nfs", &hints, ai); - if (ecode != 0) { - syslog(LOG_ERR, "getaddrinfo %s: %s", bindhost, - gai_strerror(ecode)); - return (1); - } - return (0); -} - -void -usage() -{ - (void)fprintf(stderr, "usage: nfsd %s\n", USAGE); - exit(1); -} - -void -nonfs(signo) - int signo; -{ - syslog(LOG_ERR, "missing system call: NFS not available"); -} - -void -reapchild(signo) - int signo; -{ - pid_t pid; - int i; - - while ((pid = wait3(NULL, WNOHANG, NULL)) > 0) { - for (i = 0; i < nfsdcnt; i++) - if (pid == children[i]) - children[i] = -1; - } -} - -void -unregistration() -{ - if ((!rpcb_unset(RPCPROG_NFS, 2, NULL)) || - (!rpcb_unset(RPCPROG_NFS, 3, NULL))) - syslog(LOG_ERR, "rpcb_unset failed"); -} - -void -killchildren() -{ - int i; - - for (i = 0; i < nfsdcnt; i++) { - if (children[i] > 0) - kill(children[i], SIGKILL); - } -} - -/* - * Cleanup master after SIGUSR1. - */ -void -cleanup(signo) -{ - nfsd_exit(0); -} - -/* - * Cleanup child after SIGUSR1. - */ -void -child_cleanup(signo) -{ - exit(0); -} - -void -nfsd_exit(int status) -{ - killchildren(); - unregistration(); - exit(status); -} - -void -start_server(int master) -{ - int status; - - status = 0; - nsd.nsd_nfsd = NULL; - if (nfssvc(NFSSVC_NFSD, &nsd) < 0) { - syslog(LOG_ERR, "nfssvc: %m"); - status = 1; - } - if (master) - nfsd_exit(status); - else - exit(status); -} |