572 lines
14 KiB
C
572 lines
14 KiB
C
/*
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* Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/proc.h>
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#define _KERNEL
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#include <sys/sem.h>
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#include <sys/shm.h>
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#include <sys/msg.h>
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#undef _KERNEL
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#include <err.h>
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#include <fcntl.h>
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#include <grp.h>
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#include <kvm.h>
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#include <limits.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "ipc.h"
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char *fmt_perm(u_short);
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void cvt_time(time_t, char *);
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void usage(void);
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uid_t user2uid(char *username);
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void print_kmsqtotal(struct msginfo msginfo);
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void print_kmsqheader(int option);
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void print_kmsqptr(int i, int option, struct msqid_kernel *kmsqptr);
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void print_kshmtotal(struct shminfo shminfo);
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void print_kshmheader(int option);
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void print_kshmptr(int i, int option, struct shmid_kernel *kshmptr);
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void print_ksemtotal(struct seminfo seminfo);
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void print_ksemheader(int option);
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void print_ksemptr(int i, int option, struct semid_kernel *ksemaptr);
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char *
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fmt_perm(u_short mode)
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{
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static char buffer[100];
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buffer[0] = '-';
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buffer[1] = '-';
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buffer[2] = ((mode & 0400) ? 'r' : '-');
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buffer[3] = ((mode & 0200) ? 'w' : '-');
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buffer[4] = ((mode & 0100) ? 'a' : '-');
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buffer[5] = ((mode & 0040) ? 'r' : '-');
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buffer[6] = ((mode & 0020) ? 'w' : '-');
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buffer[7] = ((mode & 0010) ? 'a' : '-');
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buffer[8] = ((mode & 0004) ? 'r' : '-');
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buffer[9] = ((mode & 0002) ? 'w' : '-');
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buffer[10] = ((mode & 0001) ? 'a' : '-');
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buffer[11] = '\0';
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return (&buffer[0]);
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}
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void
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cvt_time(time_t t, char *buf)
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{
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struct tm *tm;
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if (t == 0) {
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strcpy(buf, "no-entry");
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} else {
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tm = localtime(&t);
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sprintf(buf, "%2d:%02d:%02d",
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tm->tm_hour, tm->tm_min, tm->tm_sec);
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}
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}
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#define BIGGEST 1
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#define CREATOR 2
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#define OUTSTANDING 4
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#define PID 8
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#define TIME 16
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int
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main(int argc, char *argv[])
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{
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int display = SHMINFO | MSGINFO | SEMINFO;
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int option = 0;
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char *core = NULL, *user = NULL, *namelist = NULL;
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char kvmoferr[_POSIX2_LINE_MAX]; /* Error buf for kvm_openfiles. */
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int i;
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uid_t uid = 0;
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while ((i = getopt(argc, argv, "MmQqSsabC:cN:optTu:y")) != -1)
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switch (i) {
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case 'a':
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option |= BIGGEST | CREATOR | OUTSTANDING | PID | TIME;
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break;
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case 'b':
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option |= BIGGEST;
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break;
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case 'C':
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core = optarg;
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break;
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case 'c':
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option |= CREATOR;
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break;
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case 'M':
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display = SHMTOTAL;
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break;
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case 'm':
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display = SHMINFO;
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break;
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case 'N':
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namelist = optarg;
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break;
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case 'o':
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option |= OUTSTANDING;
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break;
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case 'p':
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option |= PID;
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break;
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case 'Q':
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display = MSGTOTAL;
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break;
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case 'q':
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display = MSGINFO;
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break;
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case 'S':
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display = SEMTOTAL;
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break;
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case 's':
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display = SEMINFO;
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break;
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case 'T':
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display = SHMTOTAL | MSGTOTAL | SEMTOTAL;
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break;
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case 't':
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option |= TIME;
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break;
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case 'u':
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user = optarg;
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uid = user2uid(user);
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break;
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case 'y':
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use_sysctl = 0;
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break;
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default:
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usage();
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}
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/*
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* If paths to the exec file or core file were specified, we
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* aren't operating on the running kernel, so we can't use
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* sysctl.
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*/
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if (namelist != NULL || core != NULL)
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use_sysctl = 0;
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if (!use_sysctl) {
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kd = kvm_openfiles(namelist, core, NULL, O_RDONLY, kvmoferr);
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if (kd == NULL)
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errx(1, "kvm_openfiles: %s", kvmoferr);
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switch (kvm_nlist(kd, symbols)) {
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case 0:
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break;
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case -1:
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errx(1, "unable to read kernel symbol table");
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default:
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break;
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}
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}
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kget(X_MSGINFO, &msginfo, sizeof(msginfo));
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if ((display & (MSGINFO | MSGTOTAL))) {
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if (display & MSGTOTAL)
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print_kmsqtotal(msginfo);
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if (display & MSGINFO) {
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struct msqid_kernel *kxmsqids;
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size_t kxmsqids_len;
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kxmsqids_len =
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sizeof(struct msqid_kernel) * msginfo.msgmni;
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kxmsqids = malloc(kxmsqids_len);
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kget(X_MSQIDS, kxmsqids, kxmsqids_len);
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print_kmsqheader(option);
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for (i = 0; i < msginfo.msgmni; i += 1) {
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if (kxmsqids[i].u.msg_qbytes != 0) {
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if (user &&
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uid != kxmsqids[i].u.msg_perm.uid)
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continue;
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print_kmsqptr(i, option, &kxmsqids[i]);
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}
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}
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printf("\n");
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}
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} else
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if (display & (MSGINFO | MSGTOTAL)) {
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fprintf(stderr,
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"SVID messages facility "
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"not configured in the system\n");
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}
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kget(X_SHMINFO, &shminfo, sizeof(shminfo));
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if ((display & (SHMINFO | SHMTOTAL))) {
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if (display & SHMTOTAL)
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print_kshmtotal(shminfo);
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if (display & SHMINFO) {
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struct shmid_kernel *kxshmids;
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size_t kxshmids_len;
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kxshmids_len =
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sizeof(struct shmid_kernel) * shminfo.shmmni;
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kxshmids = malloc(kxshmids_len);
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kget(X_SHMSEGS, kxshmids, kxshmids_len);
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print_kshmheader(option);
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for (i = 0; i < shminfo.shmmni; i += 1) {
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if (kxshmids[i].u.shm_perm.mode & 0x0800) {
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if (user &&
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uid != kxshmids[i].u.shm_perm.uid)
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continue;
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print_kshmptr(i, option, &kxshmids[i]);
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}
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}
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printf("\n");
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}
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} else
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if (display & (SHMINFO | SHMTOTAL)) {
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fprintf(stderr,
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"SVID shared memory facility "
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"not configured in the system\n");
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}
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kget(X_SEMINFO, &seminfo, sizeof(seminfo));
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if ((display & (SEMINFO | SEMTOTAL))) {
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struct semid_kernel *kxsema;
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size_t kxsema_len;
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if (display & SEMTOTAL)
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print_ksemtotal(seminfo);
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if (display & SEMINFO) {
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kxsema_len =
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sizeof(struct semid_kernel) * seminfo.semmni;
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kxsema = malloc(kxsema_len);
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kget(X_SEMA, kxsema, kxsema_len);
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print_ksemheader(option);
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for (i = 0; i < seminfo.semmni; i += 1) {
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if ((kxsema[i].u.sem_perm.mode & SEM_ALLOC)
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!= 0) {
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if (user &&
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uid != kxsema[i].u.sem_perm.uid)
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continue;
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print_ksemptr(i, option, &kxsema[i]);
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}
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}
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printf("\n");
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}
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} else
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if (display & (SEMINFO | SEMTOTAL)) {
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fprintf(stderr,
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"SVID semaphores facility "
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"not configured in the system\n");
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}
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if (!use_sysctl)
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kvm_close(kd);
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exit(0);
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}
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void
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print_kmsqtotal(struct msginfo msginfo)
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{
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printf("msginfo:\n");
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printf("\tmsgmax: %12d\t(max characters in a message)\n",
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msginfo.msgmax);
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printf("\tmsgmni: %12d\t(# of message queues)\n",
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msginfo.msgmni);
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printf("\tmsgmnb: %12d\t(max characters in a message queue)\n",
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msginfo.msgmnb);
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printf("\tmsgtql: %12d\t(max # of messages in system)\n",
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msginfo.msgtql);
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printf("\tmsgssz: %12d\t(size of a message segment)\n",
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msginfo.msgssz);
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printf("\tmsgseg: %12d\t(# of message segments in system)\n\n",
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msginfo.msgseg);
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}
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void print_kmsqheader(int option)
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{
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printf("Message Queues:\n");
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printf("T %12s %12s %-11s %-8s %-8s",
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"ID", "KEY", "MODE", "OWNER", "GROUP");
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if (option & CREATOR)
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printf(" %-8s %-8s", "CREATOR", "CGROUP");
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if (option & OUTSTANDING)
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printf(" %20s %20s", "CBYTES", "QNUM");
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if (option & BIGGEST)
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printf(" %20s", "QBYTES");
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if (option & PID)
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printf(" %12s %12s", "LSPID", "LRPID");
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if (option & TIME)
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printf(" %-8s %-8s %-8s", "STIME", "RTIME", "CTIME");
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printf("\n");
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}
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void
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print_kmsqptr(int i, int option, struct msqid_kernel *kmsqptr)
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{
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char stime_buf[100], rtime_buf[100], ctime_buf[100];
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cvt_time(kmsqptr->u.msg_stime, stime_buf);
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cvt_time(kmsqptr->u.msg_rtime, rtime_buf);
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cvt_time(kmsqptr->u.msg_ctime, ctime_buf);
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printf("q %12d %12d %s %-8s %-8s",
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IXSEQ_TO_IPCID(i, kmsqptr->u.msg_perm),
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(int)kmsqptr->u.msg_perm.key,
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fmt_perm(kmsqptr->u.msg_perm.mode),
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user_from_uid(kmsqptr->u.msg_perm.uid, 0),
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group_from_gid(kmsqptr->u.msg_perm.gid, 0));
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if (option & CREATOR)
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printf(" %-8s %-8s",
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user_from_uid(kmsqptr->u.msg_perm.cuid, 0),
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group_from_gid(kmsqptr->u.msg_perm.cgid, 0));
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if (option & OUTSTANDING)
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printf(" %12lu %12lu",
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kmsqptr->u.msg_cbytes,
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kmsqptr->u.msg_qnum);
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if (option & BIGGEST)
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printf(" %20lu", kmsqptr->u.msg_qbytes);
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if (option & PID)
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printf(" %12d %12d",
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kmsqptr->u.msg_lspid,
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kmsqptr->u.msg_lrpid);
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if (option & TIME)
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printf(" %s %s %s",
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stime_buf,
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rtime_buf,
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ctime_buf);
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printf("\n");
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}
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void
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print_kshmtotal(struct shminfo shminfo)
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{
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printf("shminfo:\n");
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printf("\tshmmax: %12lu\t(max shared memory segment size)\n",
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shminfo.shmmax);
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printf("\tshmmin: %12lu\t(min shared memory segment size)\n",
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shminfo.shmmin);
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printf("\tshmmni: %12lu\t(max number of shared memory identifiers)\n",
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shminfo.shmmni);
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printf("\tshmseg: %12lu\t(max shared memory segments per process)\n",
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shminfo.shmseg);
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printf("\tshmall: %12lu\t(max amount of shared memory in pages)\n\n",
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shminfo.shmall);
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}
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void
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print_kshmheader(int option)
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{
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printf("Shared Memory:\n");
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printf("T %12s %12s %-11s %-8s %-8s",
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"ID", "KEY", "MODE", "OWNER", "GROUP");
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if (option & CREATOR)
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printf(" %-8s %-8s", "CREATOR", "CGROUP");
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if (option & OUTSTANDING)
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printf(" %12s", "NATTCH");
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if (option & BIGGEST)
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printf(" %12s", "SEGSZ");
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if (option & PID)
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printf(" %12s %12s", "CPID", "LPID");
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if (option & TIME)
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printf(" %-8s %-8s %-8s", "ATIME", "DTIME", "CTIME");
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printf("\n");
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}
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void
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print_kshmptr(int i, int option, struct shmid_kernel *kshmptr)
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{
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char atime_buf[100], dtime_buf[100], ctime_buf[100];
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cvt_time(kshmptr->u.shm_atime, atime_buf);
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cvt_time(kshmptr->u.shm_dtime, dtime_buf);
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cvt_time(kshmptr->u.shm_ctime, ctime_buf);
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printf("m %12d %12d %s %-8s %-8s",
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IXSEQ_TO_IPCID(i, kshmptr->u.shm_perm),
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(int)kshmptr->u.shm_perm.key,
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fmt_perm(kshmptr->u.shm_perm.mode),
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user_from_uid(kshmptr->u.shm_perm.uid, 0),
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group_from_gid(kshmptr->u.shm_perm.gid, 0));
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if (option & CREATOR)
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printf(" %-8s %-8s",
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user_from_uid(kshmptr->u.shm_perm.cuid, 0),
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group_from_gid(kshmptr->u.shm_perm.cgid, 0));
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if (option & OUTSTANDING)
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printf(" %12d",
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kshmptr->u.shm_nattch);
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if (option & BIGGEST)
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printf(" %12d",
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kshmptr->u.shm_segsz);
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if (option & PID)
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printf(" %12d %12d",
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kshmptr->u.shm_cpid,
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kshmptr->u.shm_lpid);
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if (option & TIME)
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printf(" %s %s %s",
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atime_buf,
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dtime_buf,
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ctime_buf);
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printf("\n");
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}
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void
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print_ksemtotal(struct seminfo seminfo)
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{
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printf("seminfo:\n");
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printf("\tsemmap: %12d\t(# of entries in semaphore map)\n",
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seminfo.semmap);
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printf("\tsemmni: %12d\t(# of semaphore identifiers)\n",
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seminfo.semmni);
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printf("\tsemmns: %12d\t(# of semaphores in system)\n",
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seminfo.semmns);
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printf("\tsemmnu: %12d\t(# of undo structures in system)\n",
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seminfo.semmnu);
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printf("\tsemmsl: %12d\t(max # of semaphores per id)\n",
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seminfo.semmsl);
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printf("\tsemopm: %12d\t(max # of operations per semop call)\n",
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seminfo.semopm);
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printf("\tsemume: %12d\t(max # of undo entries per process)\n",
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seminfo.semume);
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printf("\tsemusz: %12d\t(size in bytes of undo structure)\n",
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seminfo.semusz);
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printf("\tsemvmx: %12d\t(semaphore maximum value)\n",
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seminfo.semvmx);
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printf("\tsemaem: %12d\t(adjust on exit max value)\n\n",
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seminfo.semaem);
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}
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void
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print_ksemheader(int option)
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{
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printf("Semaphores:\n");
|
|
printf("T %12s %12s %-11s %-8s %-8s",
|
|
"ID", "KEY", "MODE", "OWNER", "GROUP");
|
|
if (option & CREATOR)
|
|
printf(" %-8s %-8s", "CREATOR", "CGROUP");
|
|
if (option & BIGGEST)
|
|
printf(" %12s", "NSEMS");
|
|
if (option & TIME)
|
|
printf(" %-8s %-8s", "OTIME", "CTIME");
|
|
printf("\n");
|
|
}
|
|
|
|
void
|
|
print_ksemptr(int i, int option, struct semid_kernel *ksemaptr)
|
|
{
|
|
char ctime_buf[100], otime_buf[100];
|
|
|
|
cvt_time(ksemaptr->u.sem_otime, otime_buf);
|
|
cvt_time(ksemaptr->u.sem_ctime, ctime_buf);
|
|
|
|
printf("s %12d %12d %s %-8s %-8s",
|
|
IXSEQ_TO_IPCID(i, ksemaptr->u.sem_perm),
|
|
(int)ksemaptr->u.sem_perm.key,
|
|
fmt_perm(ksemaptr->u.sem_perm.mode),
|
|
user_from_uid(ksemaptr->u.sem_perm.uid, 0),
|
|
group_from_gid(ksemaptr->u.sem_perm.gid, 0));
|
|
|
|
if (option & CREATOR)
|
|
printf(" %-8s %-8s",
|
|
user_from_uid(ksemaptr->u.sem_perm.cuid, 0),
|
|
group_from_gid(ksemaptr->u.sem_perm.cgid, 0));
|
|
|
|
if (option & BIGGEST)
|
|
printf(" %12d",
|
|
ksemaptr->u.sem_nsems);
|
|
|
|
if (option & TIME)
|
|
printf(" %s %s",
|
|
otime_buf,
|
|
ctime_buf);
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
uid_t
|
|
user2uid(char *username)
|
|
{
|
|
struct passwd *pwd;
|
|
uid_t uid;
|
|
char *r;
|
|
|
|
uid = strtoul(username, &r, 0);
|
|
if (!*r && r != username)
|
|
return (uid);
|
|
if ((pwd = getpwnam(username)) == NULL)
|
|
errx(1, "getpwnam failed: No such user");
|
|
endpwent();
|
|
return (pwd->pw_uid);
|
|
}
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
|
|
fprintf(stderr,
|
|
"usage: "
|
|
"ipcs [-abcmopqstyMQST] [-C corefile] [-N namelist] [-u user]\n");
|
|
exit(1);
|
|
}
|