diff options
author | dg <dg@FreeBSD.org> | 1994-08-19 12:14:10 +0000 |
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committer | dg <dg@FreeBSD.org> | 1994-08-19 12:14:10 +0000 |
commit | 35558b6a08e8e73d6e3151fd78ab280cc0c072cb (patch) | |
tree | 6af201c09c2b3e9f4a9d5b5c25e429900a610642 /usr.bin/modstat/modstat.c | |
parent | af3f714addb5ee7de74ce27b39d8de8aa3c62752 (diff) | |
download | FreeBSD-src-35558b6a08e8e73d6e3151fd78ab280cc0c072cb.zip FreeBSD-src-35558b6a08e8e73d6e3151fd78ab280cc0c072cb.tar.gz |
Terry Lambert's loadable kernel module support - modstat utility with
improvements from the NetBSD group.
Diffstat (limited to 'usr.bin/modstat/modstat.c')
-rw-r--r-- | usr.bin/modstat/modstat.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/usr.bin/modstat/modstat.c b/usr.bin/modstat/modstat.c new file mode 100644 index 0000000..7df85ed --- /dev/null +++ b/usr.bin/modstat/modstat.c @@ -0,0 +1,178 @@ +/* + * Copyright (c) 1993 Terrence R. Lambert. + * 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 Terrence R. Lambert. + * 4. The name Terrence R. Lambert may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY TERRENCE R. LAMBERT ``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 TERRENCE R. LAMBERT 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. + * + * $Id: modstat.c,v 1.5 1994/05/23 05:44:08 cgd Exp $ + */ + +#include <stdio.h> +#include <stdlib.h> +#include <err.h> +#include <string.h> +#include <a.out.h> +#include <sys/param.h> +#include <sys/ioctl.h> +#include <sys/conf.h> +#include <sys/mount.h> +#include <sys/lkm.h> +#include <sys/file.h> +#include <sys/errno.h> +#include "pathnames.h" + +void +usage() +{ + + fprintf(stderr, "usage:\n"); + fprintf(stderr, "modstat [-i <module id>] [-n <module name>]\n"); + exit(1); +} + +static char *type_names[] = { + "SYSCALL", + "VFS", + "DEV", + "STRMOD", + "EXEC", + "MISC" +}; + +int +dostat(devfd, modnum, modname) + int devfd; + int modnum; + char *modname; +{ + struct lmc_stat sbuf; + + if (modname != NULL) + strcpy(sbuf.name, modname); + + sbuf.id = modnum; + + if (ioctl(devfd, LMSTAT, &sbuf) == -1) { + switch (errno) { + case EINVAL: /* out of range */ + return 2; + case ENOENT: /* no such entry */ + return 1; + default: /* other error (EFAULT, etc) */ + warn("LMSTAT"); + return 4; + } + } + + /* + * Decode this stat buffer... + */ + printf("%-7s %3d %3d %08x %04x %8x %3d %s\n", + type_names[sbuf.type], + sbuf.id, /* module id */ + sbuf.offset, /* offset into modtype struct */ + sbuf.area, /* address module loaded at */ + sbuf.size, /* size in pages(K) */ + sbuf.private, /* kernel address of private area */ + sbuf.ver, /* Version; always 1 for now */ + sbuf.name /* name from private area */ + ); + + /* + * Done (success). + */ + return 0; +} + +int devfd; + +void +cleanup() +{ + + close(devfd); +} + +int +main(argc, argv) + int argc; + char *argv[]; +{ + int c; + int modnum = -1; + char *modname = NULL; + + while ((c = getopt(argc, argv, "i:n:")) != EOF) { + switch (c) { + case 'i': + modnum = atoi(optarg); + break; /* number */ + case 'n': + modname = optarg; + break; /* name */ + case '?': + usage(); + default: + printf("default!\n"); + break; + } + } + argc -= optind; + argv += optind; + + if (argc != 0) + usage(); + + /* + * Open the virtual device device driver for exclusive use (needed + * to ioctl() to retrive the loaded module(s) status). + */ + if ((devfd = open(_PATH_LKM, O_RDONLY, 0)) == -1) + err(2, _PATH_LKM); + + atexit(cleanup); + + printf("Type Id Off Loadaddr Size Info Rev Module Name\n"); + + /* + * Oneshot? + */ + if (modnum != -1 || modname != NULL) { + if (dostat(devfd, modnum, modname)) + exit(3); + exit(0); + } + + /* + * Start at 0 and work up until "EINVAL". + */ + for (modnum = 0; dostat(devfd, modnum, NULL) < 2; modnum++) + ; + + exit(0); +} |