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tdebase/ksysguard/ksysguardd/NetBSD/ProcessList.c

458 lines
10 KiB

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