diff options
Diffstat (limited to 'usr.sbin/nfsrevoke/nfsrevoke.c')
| -rw-r--r-- | usr.sbin/nfsrevoke/nfsrevoke.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/usr.sbin/nfsrevoke/nfsrevoke.c b/usr.sbin/nfsrevoke/nfsrevoke.c new file mode 100644 index 0000000..f6ba813 --- /dev/null +++ b/usr.sbin/nfsrevoke/nfsrevoke.c @@ -0,0 +1,124 @@ +/*- + * Copyright (c) 2009 Rick Macklem, University of Guelph + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/linker.h> +#include <sys/module.h> +#include <sys/mount.h> +#include <sys/socket.h> +#include <sys/sysctl.h> +#include <sys/vnode.h> + +#include <netinet/in.h> + +#include <nfs/nfssvc.h> + +#include <fs/nfs/rpcv2.h> +#include <fs/nfs/nfsproto.h> +#include <fs/nfs/nfskpiport.h> +#include <fs/nfs/nfs.h> + +#include <ctype.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <paths.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +void usage(void); +extern int errno; + +int +main(int argc, char **argv) +{ + char *cp; + u_char val; + int cnt, even; + struct nfsd_clid revoke; + + if (modfind("nfsd") < 0) + errx(1, "nfsd not loaded - self terminating"); + if (argc != 2) + usage(); + cnt = 0; + cp = argv[1]; + if (strlen(cp) % 2) + even = 0; + else + even = 1; + val = 0; + while (*cp) { + if (*cp >= '0' & *cp <= '9') + val += (u_char)(*cp - '0'); + else if (*cp >= 'A' && *cp <= 'F') + val += ((u_char)(*cp - 'A')) + 0xa; + else if (*cp >= 'a' && *cp <= 'f') + val += ((u_char)(*cp - 'a')) + 0xa; + else + errx(1, "Non hexadecimal digit in %s", argv[1]); + if (even) { + val <<= 4; + even = 0; + } else { + revoke.nclid_id[cnt++] = val; + if (cnt > NFSV4_OPAQUELIMIT) + errx(1, "Clientid %s, loo long", argv[1]); + val = 0; + even = 1; + } + cp++; + } + + /* + * Do the revocation system call. + */ + revoke.nclid_idlen = cnt; +#ifdef DEBUG + printf("Idlen=%d\n", revoke.nclid_idlen); + for (cnt = 0; cnt < revoke.nclid_idlen; cnt++) + printf("%02x", revoke.nclid_id[cnt]); + printf("\n"); +#else + if (nfssvc(NFSSVC_ADMINREVOKE, &revoke) < 0) + err(1, "Admin revoke failed"); +#endif +} + +void +usage(void) +{ + + errx(1, "Usage: nfsrevoke <ClientID>"); +} |
