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458 lines
10 KiB
458 lines
10 KiB
/*
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KSysGuard, the KDE System Guard
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Copyright (c) 1999-2000 Hans Petter Bieker<bieker@kde.org>
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Copyright (c) 1999 Chris Schlaeger <cs@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <ctype.h>
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#include <dirent.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 <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/user.h>
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#include <unistd.h>
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#include <signal.h>
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#include "../../gui/SignalIDs.h"
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#include "Command.h"
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#include "ProcessList.h"
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#include "ccont.h"
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#include "ksysguardd.h"
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CONTAINER ProcessList = 0;
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#define BUFSIZE 1024
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typedef struct
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{
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/* This flag is set for all found processes at the beginning of the
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* process list update. Processes that do not have this flag set will
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* be assumed dead and removed from the list. The flag is cleared after
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* each list update. */
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int alive;
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/* the process ID */
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pid_t pid;
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/* the parent process ID */
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pid_t ppid;
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/* the real user ID */
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uid_t uid;
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/* the real group ID */
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gid_t gid;
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/* a character description of the process status */
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char status[16];
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/* the number of the tty the process owns */
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int ttyNo;
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/*
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* The nice level. The range should be -20 to 20. I'm not sure
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* whether this is true for all platforms.
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*/
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int niceLevel;
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/*
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* The scheduling priority.
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*/
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int priority;
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/*
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* The total amount of memory the process uses. This includes shared and
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* swapped memory.
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*/
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unsigned int vmSize;
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/*
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* The amount of physical memory the process currently uses.
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*/
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unsigned int vmRss;
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/*
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* The amount of memory (shared/swapped/etc) the process shares with
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* other processes.
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*/
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unsigned int vmLib;
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/*
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* The number of 1/100 of a second the process has spend in user space.
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* If a machine has an uptime of 1 1/2 years or longer this is not a
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* good idea. I never thought that the stability of UNIX could get me
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* into trouble! ;)
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*/
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unsigned int userTime;
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/*
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* The number of 1/100 of a second the process has spend in system space.
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* If a machine has an uptime of 1 1/2 years or longer this is not a
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* good idea. I never thought that the stability of UNIX could get me
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* into trouble! ;)
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*/
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unsigned int sysTime;
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/* system time as multime of 100ms */
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int centStamp;
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/* the current CPU load (in %) from user space */
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double userLoad;
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/* the current CPU load (in %) from system space */
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double sysLoad;
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/* the name of the process */
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char name[64];
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/* the command used to start the process */
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char cmdline[256];
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/* the login name of the user that owns this process */
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char userName[32];
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} ProcessInfo;
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static unsigned ProcessCount;
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static int
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processCmp(void* p1, void* p2)
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{
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return (((ProcessInfo*) p1)->pid - ((ProcessInfo*) p2)->pid);
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}
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static ProcessInfo*
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findProcessInList(int pid)
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{
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ProcessInfo key;
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long index;
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key.pid = pid;
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if ((index = search_ctnr(ProcessList, processCmp, &key)) < 0)
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return (0);
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return (get_ctnr(ProcessList, index));
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}
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static int
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updateProcess(int pid)
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{
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static char *statuses[] = { "idle","run","sleep","stop","zombie" };
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ProcessInfo* ps;
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struct passwd* pwent;
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int mib[4];
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struct kinfo_proc p;
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size_t len;
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if ((ps = findProcessInList(pid)) == 0)
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{
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ps = (ProcessInfo*) malloc(sizeof(ProcessInfo));
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ps->pid = pid;
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ps->centStamp = 0;
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push_ctnr(ProcessList, ps);
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bsort_ctnr(ProcessList, processCmp);
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}
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ps->alive = 1;
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_PID;
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mib[3] = pid;
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len = sizeof (p);
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if (sysctl(mib, 4, &p, &len, NULL, 0) == -1 || !len)
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return -1;
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ps->pid = p.kp_proc.p_pid;
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ps->ppid = p.kp_eproc.e_ppid;
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ps->uid = p.kp_eproc.e_ucred.cr_uid;
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ps->gid = p.kp_eproc.e_pgid;
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ps->priority = p.kp_proc.p_priority;
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ps->niceLevel = p.kp_proc.p_nice;
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/* this isn't usertime -- it's total time (??) */
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ps->userTime = p.kp_proc.p_rtime.tv_sec*100+p.kp_proc.p_rtime.tv_usec/100;
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ps->sysTime = 0;
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ps->sysLoad = 0;
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/* memory, process name, process uid */
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/* find out user name with process uid */
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pwent = getpwuid(ps->uid);
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strlcpy(ps->userName,pwent&&pwent->pw_name? pwent->pw_name:"????",sizeof(ps->userName));
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ps->userName[sizeof(ps->userName)-1]='\0';
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ps->userLoad = p.kp_proc.p_pctcpu / 100;
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ps->vmSize = (p.kp_eproc.e_vm.vm_tsize +
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p.kp_eproc.e_vm.vm_dsize +
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p.kp_eproc.e_vm.vm_ssize) * getpagesize();
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ps->vmRss = p.kp_eproc.e_vm.vm_rssize * getpagesize();
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strlcpy(ps->name,p.kp_proc.p_comm ? p.kp_proc.p_comm : "????", sizeof(ps->name));
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strlcpy(ps->status,(p.kp_proc.p_stat>=1)&&(p.kp_proc.p_stat<=5)? statuses[p.kp_proc.p_stat-1]:"????", sizeof(ps->status));
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/* process command line */
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/* the following line causes segfaults on some FreeBSD systems... why?
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strncpy(ps->cmdline, p.kp_proc.p_args->ar_args, sizeof(ps->cmdline) - 1);
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*/
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strcpy(ps->cmdline, "????");
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return (0);
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}
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static void
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cleanupProcessList(void)
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{
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ProcessInfo* ps;
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ProcessCount = 0;
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/* All processes that do not have the active flag set are assumed dead
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* and will be removed from the list. The alive flag is cleared. */
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for (ps = first_ctnr(ProcessList); ps; ps = next_ctnr(ProcessList))
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{
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if (ps->alive)
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{
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/* Process is still alive. Just clear flag. */
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ps->alive = 0;
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ProcessCount++;
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}
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else
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{
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/* Process has probably died. We remove it from the list and
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* destruct the data structure. i needs to be decremented so
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* that after i++ the next list element will be inspected. */
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free(remove_ctnr(ProcessList));
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}
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}
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}
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/*
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================================ public part ==================================
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*/
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void
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initProcessList(struct SensorModul* sm)
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{
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ProcessList = new_ctnr();
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registerMonitor("ps", "table", printProcessList, printProcessListInfo, sm);
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registerMonitor("pscount", "integer", printProcessCount, printProcessCountInfo, sm);
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if (!RunAsDaemon)
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{
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registerCommand("kill", killProcess);
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registerCommand("setpriority", setPriority);
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}
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updateProcessList();
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}
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void
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exitProcessList(void)
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{
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removeMonitor("ps");
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removeMonitor("pscount");
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if (ProcessList)
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free (ProcessList);
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}
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int
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updateProcessList(void)
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{
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int mib[3];
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size_t len;
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size_t num;
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struct kinfo_proc *p;
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_ALL;
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sysctl(mib, 3, NULL, &len, NULL, 0);
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p = malloc(len);
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sysctl(mib, 3, p, &len, NULL, 0);
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for (num = 0; num < len / sizeof(struct kinfo_proc); num++)
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updateProcess(p[num].kp_proc.p_pid);
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free(p);
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cleanupProcessList();
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return (0);
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}
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void
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printProcessListInfo(const char* cmd)
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{
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fprintf(CurrentClient, "Name\tPID\tPPID\tUID\tGID\ttqStatus\tUser%%\tSystem%%\tNice\tVmSize\tVmRss\tLogin\tCommand\n");
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fprintf(CurrentClient, "s\td\td\td\td\tS\tf\tf\td\tD\tD\ts\ts\n");
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}
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void
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printProcessList(const char* cmd)
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{
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ProcessInfo* ps;
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ps = first_ctnr(ProcessList); /* skip 'kernel' entry */
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for (ps = next_ctnr(ProcessList); ps; ps = next_ctnr(ProcessList))
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{
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fprintf(CurrentClient, "%s\t%ld\t%ld\t%ld\t%ld\t%s\t%.2f\t%.2f\t%d\t%d\t%d\t%s\t%s\n",
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ps->name, (long)ps->pid, (long)ps->ppid,
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(long)ps->uid, (long)ps->gid, ps->status,
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ps->userLoad, ps->sysLoad, ps->niceLevel,
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ps->vmSize / 1024, ps->vmRss / 1024, ps->userName, ps->cmdline);
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}
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}
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void
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printProcessCount(const char* cmd)
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{
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fprintf(CurrentClient, "%d\n", ProcessCount);
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}
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void
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printProcessCountInfo(const char* cmd)
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{
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fprintf(CurrentClient, "Number of Processes\t1\t65535\t\n");
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}
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void
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killProcess(const char* cmd)
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{
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int sig, pid;
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sscanf(cmd, "%*s %d %d", &pid, &sig);
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switch(sig)
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{
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case MENU_ID_SIGABRT:
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sig = SIGABRT;
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break;
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case MENU_ID_SIGALRM:
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sig = SIGALRM;
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break;
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case MENU_ID_SIGCHLD:
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sig = SIGCHLD;
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break;
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case MENU_ID_SIGCONT:
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sig = SIGCONT;
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break;
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case MENU_ID_SIGFPE:
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sig = SIGFPE;
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break;
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case MENU_ID_SIGHUP:
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sig = SIGHUP;
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break;
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case MENU_ID_SIGILL:
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sig = SIGILL;
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break;
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case MENU_ID_SIGINT:
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sig = SIGINT;
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break;
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case MENU_ID_SIGKILL:
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sig = SIGKILL;
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break;
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case MENU_ID_SIGPIPE:
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sig = SIGPIPE;
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break;
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case MENU_ID_SIGQUIT:
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sig = SIGQUIT;
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break;
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case MENU_ID_SIGSEGV:
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sig = SIGSEGV;
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break;
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case MENU_ID_SIGSTOP:
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sig = SIGSTOP;
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break;
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case MENU_ID_SIGTERM:
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sig = SIGTERM;
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break;
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case MENU_ID_SIGTSTP:
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sig = SIGTSTP;
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break;
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case MENU_ID_SIGTTIN:
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sig = SIGTTIN;
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break;
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case MENU_ID_SIGTTOU:
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sig = SIGTTOU;
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break;
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case MENU_ID_SIGUSR1:
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sig = SIGUSR1;
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break;
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case MENU_ID_SIGUSR2:
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sig = SIGUSR2;
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break;
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}
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if (kill((pid_t) pid, sig))
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{
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switch(errno)
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{
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case EINVAL:
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fprintf(CurrentClient, "4\t%d\n", pid);
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break;
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case ESRCH:
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fprintf(CurrentClient, "3\t%d\n", pid);
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break;
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case EPERM:
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fprintf(CurrentClient, "2\t%d\n", pid);
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break;
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default:
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fprintf(CurrentClient, "1\t%d\n", pid); /* unknown error */
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break;
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}
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}
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else
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fprintf(CurrentClient, "0\t%d\n", pid);
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}
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void
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setPriority(const char* cmd)
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{
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int pid, prio;
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sscanf(cmd, "%*s %d %d", &pid, &prio);
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if (setpriority(PRIO_PROCESS, pid, prio))
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{
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switch(errno)
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{
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case EINVAL:
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fprintf(CurrentClient, "4\n");
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break;
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case ESRCH:
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fprintf(CurrentClient, "3\n");
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break;
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case EPERM:
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case EACCES:
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fprintf(CurrentClient, "2\n");
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break;
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default:
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fprintf(CurrentClient, "1\n"); /* unknown error */
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break;
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}
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}
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else
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fprintf(CurrentClient, "0\n");
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}
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