[16969] | 1 | /* |
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| 2 | * Copyright 2000, International Business Machines Corporation and others. |
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| 3 | * All Rights Reserved. |
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| 4 | * |
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| 5 | * This software has been released under the terms of the IBM Public |
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| 6 | * License. For details, see the LICENSE file in the top-level source |
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| 7 | * directory or online at http://www.openafs.org/dl/license10.html |
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| 8 | */ |
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| 9 | |
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| 10 | /* |
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| 11 | * cfgafs - load/configure the AFS kernel extension |
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| 12 | */ |
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| 13 | #include <afsconfig.h> |
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| 14 | #include <afs/param.h> |
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| 15 | |
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| 16 | RCSID("$Header: /afs/dev.mit.edu/source/repository/third/openafs/src/export/cfgafs.c,v 1.1.1.1 2002-01-31 21:49:01 zacheiss Exp $"); |
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| 17 | |
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| 18 | #include <stdio.h> |
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| 19 | #include <fcntl.h> |
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| 20 | #include <sys/types.h> |
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| 21 | #include <sys/device.h> |
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| 22 | #include <sys/sysconfig.h> |
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| 23 | #include <sys/uio.h> |
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| 24 | #include <sys/ldr.h> |
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| 25 | #include <setjmp.h> |
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| 26 | #include <signal.h> |
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| 27 | |
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| 28 | extern char *malloc(), *optarg; |
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| 29 | extern int errno; |
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| 30 | extern int sysconfig(int cmd, void *arg, int len); |
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| 31 | |
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| 32 | #include "AFS_component_version_number.c" |
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| 33 | |
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| 34 | main(argc, argv) |
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| 35 | char **argv; { |
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| 36 | register add, del; |
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| 37 | register c; |
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| 38 | int res; |
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| 39 | char *file; |
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| 40 | mid_t kmid; |
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| 41 | struct cfg_load cload; |
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| 42 | struct cfg_kmod cmod; |
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| 43 | FILE *fp; |
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| 44 | |
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| 45 | #ifdef AFS_AIX32_ENV |
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| 46 | /* |
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| 47 | * The following signal action for AIX is necessary so that in case of a |
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| 48 | * crash (i.e. core is generated) we can include the user's data section |
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| 49 | * in the core dump. Unfortunately, by default, only a partial core is |
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| 50 | * generated which, in many cases, isn't too useful. |
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| 51 | */ |
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| 52 | struct sigaction nsa; |
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| 53 | |
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| 54 | sigemptyset(&nsa.sa_mask); |
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| 55 | nsa.sa_handler = SIG_DFL; |
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| 56 | nsa.sa_flags = SA_FULLDUMP; |
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| 57 | sigaction(SIGSEGV, &nsa, NULL); |
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| 58 | #endif |
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| 59 | add = del = 0; |
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| 60 | |
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| 61 | while ((c = getopt(argc, argv, "a:d:")) != EOF) { |
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| 62 | switch (c) { |
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| 63 | case 'a': |
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| 64 | add = 1; |
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| 65 | file = optarg; |
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| 66 | if (!file) |
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| 67 | usage(); |
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| 68 | break; |
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| 69 | |
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| 70 | case 'd': |
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| 71 | del = 1; |
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| 72 | file = optarg; |
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| 73 | if (!file) |
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| 74 | usage(); |
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| 75 | break; |
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| 76 | |
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| 77 | default: |
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| 78 | usage(); |
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| 79 | break; |
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| 80 | } |
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| 81 | } |
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| 82 | |
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| 83 | if (!add && !del) |
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| 84 | usage(); |
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| 85 | |
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| 86 | if (add) { |
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| 87 | char *buf[1024]; |
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| 88 | char PidFile[256]; |
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| 89 | |
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| 90 | buf[0] = "execerror"; |
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| 91 | buf[1] = "cfgafs"; |
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| 92 | cload.path = file; |
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| 93 | res = sysconfig(SYS_KLOAD, &cload, sizeof(cload)); |
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| 94 | if (res != 0) { |
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| 95 | perror("SYS_KLOAD"); |
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| 96 | loadquery(L_GETMESSAGES, &buf[2], sizeof buf - 8); |
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| 97 | execvp("/etc/execerror", buf); |
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| 98 | exit(1); |
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| 99 | } |
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| 100 | |
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| 101 | cmod.kmid = cload.kmid; |
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| 102 | cmod.cmd = CFG_INIT; |
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| 103 | cmod.mdiptr = 0; |
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| 104 | cmod.mdilen = 0; |
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| 105 | |
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| 106 | res = sysconfig(SYS_CFGKMOD, &cmod, sizeof(cmod)); |
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| 107 | if (res != 0) { |
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| 108 | perror("SYS_CFGKMOD"); |
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| 109 | cload.kmid = cload.kmid; |
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| 110 | sysconfig(SYS_KULOAD, &cload, sizeof(cload)); |
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| 111 | exit(1); |
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| 112 | } |
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| 113 | #ifdef notdef |
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| 114 | printf("cfgafs -d 0x%x # to remove AFS\n", cload.kmid); |
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| 115 | #endif |
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| 116 | strcpy(PidFile, file); |
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| 117 | strcat(PidFile, ".kmid"); |
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| 118 | fp = fopen(PidFile, "w"); |
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| 119 | if (fp) { |
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| 120 | (void) fprintf(fp, "%d\n", cload.kmid); |
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| 121 | (void) fclose(fp); |
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| 122 | } else { |
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| 123 | printf("Can't open for write file %s (error=%d); ignored\n", PidFile, errno); |
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| 124 | } |
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| 125 | exit(0); |
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| 126 | } else if (del) { |
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| 127 | char PidFile[256]; |
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| 128 | |
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| 129 | strcpy(PidFile, file); |
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| 130 | strcat(PidFile, ".kmid"); |
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| 131 | fp = fopen(PidFile, "r"); |
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| 132 | if (!fp) { |
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| 133 | printf("Can't read %s file (error=%d); aborting\n", PidFile, errno); |
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| 134 | exit(1); |
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| 135 | } |
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| 136 | (void) fscanf(fp, "%d\n", &kmid); |
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| 137 | (void) fclose(fp); |
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| 138 | unlink(PidFile); |
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| 139 | cmod.kmid = kmid; |
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| 140 | cmod.cmd = CFG_TERM; |
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| 141 | cmod.mdiptr = NULL; |
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| 142 | cmod.mdilen = 0; |
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| 143 | |
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| 144 | if (sysconfig(SYS_CFGKMOD, &cmod, sizeof(cmod)) == -1) { |
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| 145 | perror("SYS_CFGKMOD"); |
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| 146 | exit(1); |
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| 147 | } |
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| 148 | |
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| 149 | cload.kmid = kmid; |
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| 150 | if (sysconfig(SYS_KULOAD, &cload, sizeof(cload)) == -1) { |
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| 151 | perror("SYS_KULOAD"); |
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| 152 | exit(1); |
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| 153 | } |
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| 154 | exit(0); |
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| 155 | } |
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| 156 | } |
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| 157 | |
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| 158 | usage() { |
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| 159 | |
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| 160 | fprintf(stderr, "usage: cfgafs [-a mod_file] [-d mod_file]\n"); |
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| 161 | exit(1); |
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| 162 | } |
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