1 /*-
2 * Copyright (c) 2009 Rick Macklem, University of Guelph
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 */
27
28 #include <sys/param.h>
29 #include <sys/linker.h>
30 #include <sys/module.h>
31 #include <sys/mount.h>
32 #include <sys/socket.h>
33 #include <sys/sysctl.h>
34 #include <sys/vnode.h>
35
36 #include <netinet/in.h>
37
38 #include <nfs/nfssvc.h>
39
40 #include <fs/nfs/rpcv2.h>
41 #include <fs/nfs/nfsproto.h>
42 #include <fs/nfs/nfskpiport.h>
43 #include <fs/nfs/nfs.h>
44
45 #include <ctype.h>
46 #include <err.h>
47 #include <errno.h>
48 #include <fcntl.h>
49 #include <limits.h>
50 #include <paths.h>
51 #include <signal.h>
52 #include <stdio.h>
53 #include <stdlib.h>
54 #include <string.h>
55 #include <unistd.h>
56
57 static void usage(void) __dead2;
58
59 int
main(int argc,char ** argv)60 main(int argc, char **argv)
61 {
62 char *cp;
63 u_char val;
64 int cnt, even;
65 struct nfsd_clid revoke_handle;
66
67 if (modfind("nfsd") < 0)
68 errx(1, "nfsd not loaded - self terminating");
69 if (argc != 2)
70 usage();
71 cnt = 0;
72 cp = argv[1];
73 if (strlen(cp) % 2)
74 even = 0;
75 else
76 even = 1;
77 val = 0;
78 while (*cp) {
79 if (*cp >= '0' && *cp <= '9')
80 val += (u_char)(*cp - '0');
81 else if (*cp >= 'A' && *cp <= 'F')
82 val += ((u_char)(*cp - 'A')) + 0xa;
83 else if (*cp >= 'a' && *cp <= 'f')
84 val += ((u_char)(*cp - 'a')) + 0xa;
85 else
86 errx(1, "Non hexadecimal digit in %s", argv[1]);
87 if (even) {
88 val <<= 4;
89 even = 0;
90 } else {
91 revoke_handle.nclid_id[cnt++] = val;
92 if (cnt > NFSV4_OPAQUELIMIT)
93 errx(1, "Clientid %s, loo long", argv[1]);
94 val = 0;
95 even = 1;
96 }
97 cp++;
98 }
99
100 /*
101 * Do the revocation system call.
102 */
103 revoke_handle.nclid_idlen = cnt;
104 #ifdef DEBUG
105 printf("Idlen=%d\n", revoke_handle.nclid_idlen);
106 for (cnt = 0; cnt < revoke_handle.nclid_idlen; cnt++)
107 printf("%02x", revoke_handle.nclid_id[cnt]);
108 printf("\n");
109 #else
110 if (nfssvc(NFSSVC_ADMINREVOKE, &revoke_handle) < 0)
111 err(1, "Admin revoke failed");
112 #endif
113 }
114
115 static void
usage(void)116 usage(void)
117 {
118
119 errx(1, "Usage: nfsrevoke <ClientID>");
120 }
121