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tdebase/ksysguard/ksysguardd/OpenBSD/ProcessList.c

496 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 <errno.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.
*/
size_t vmSize;
/*
* The amount of physical memory the process currently uses.
*/
size_t vmRss;
/*
* 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 void
fillProcessCmdline(char *cmdline, struct kinfo_proc *p, size_t maxlen)
{
int mib[4];
int ret = -1;
static char *argbuf = NULL;
static size_t arglen = 0;
strlcpy(cmdline, p->p_comm, maxlen);
if (!argbuf) {
arglen = 1024;
argbuf = malloc(arglen);
}
mib[0] = CTL_KERN;
mib[1] = KERN_PROC_ARGS;
mib[2] = p->p_pid;
mib[3] = KERN_PROC_ARGV;
while (argbuf) {
ret = sysctl(mib, 4, argbuf, &arglen, NULL, 0);
if (ret == -1 && errno == ENOMEM) {
char *n;
n = realloc(argbuf, arglen * 2);
if (n != 0) {
argbuf = n;
arglen *= 2;
continue;
}
}
break;
}
if (ret != 1) {
char **argv;
int argc;
argv = (char **)argbuf;
if (argv[0] != NULL)
strlcpy(cmdline, argv[0], maxlen);
for (argc = 1; argv[argc] != NULL; argc++) {
strlcat(cmdline, " ", maxlen);
strlcat(cmdline, argv[argc], maxlen);
}
} else {
strlcpy(cmdline, p->p_comm, maxlen);
}
}
static int
updateProcess(struct kinfo_proc *p)
{
static char *statuses[] = { "idle","run","sleep","stop","zombie" };
ProcessInfo* ps;
struct passwd* pwent;
pid_t pid = p->p_pid;
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;
ps->pid = p->p_pid;
ps->ppid = p->p_ppid;
ps->uid = p->p_uid;
ps->gid = p->p_gid;
ps->priority = p->p_priority;
ps->niceLevel = p->p_nice;
/* this isn't usertime -- it's total time (??) */
ps->userTime = p->p_uutime_sec*100+p->p_uutime_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->p_pctcpu / 100;
ps->vmSize = ((size_t)(p->p_vm_tsize) +
(size_t)(p->p_vm_dsize) +
(size_t)(p->p_vm_ssize)) * (size_t)(getpagesize());
ps->vmRss = (size_t)(p->p_vm_rssize) * (size_t)(getpagesize());
strlcpy(ps->name,p->p_comm ? p->p_comm : "????", sizeof(ps->name));
strlcpy(ps->status,(p->p_stat>=1)&&(p->p_stat<=5)? statuses[p->p_stat-1]:"????", sizeof(ps->status));
fillProcessCmdline(ps->cmdline, p, sizeof(ps->cmdline));
/* process command line */
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[6];
size_t len;
size_t num;
struct kinfo_proc *p;
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_ALL;
mib[3] = 0;
mib[4] = sizeof(struct kinfo_proc);
mib[5] = 0;
if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1)
return 0;
len = 5 * len / 4;
p = malloc(len);
if (!p)
return 0;
mib[5] = len/ sizeof(struct kinfo_proc);
if (sysctl(mib, 6, p, &len, NULL, 0) == -1)
return 0;
for (num = 0; num < len / sizeof(struct kinfo_proc); num++)
updateProcess(&p[num]);
free(p);
cleanupProcessList();
return (0);
}
void
printProcessListInfo(const char* cmd)
{
fprintf(CurrentClient, "Name\tPID\tPPID\tUID\tGID\tStatus\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;
for (ps = first_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%zu\t%zu\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");
}