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Add sysctls to allow showing threads for pgrp, tty, uid, ruid,

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and pid.
This commit is contained in:
Daniel Eischen 2004-02-22 17:54:32 +00:00
parent 648a7aae7f
commit 2648efa621
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=126125
2 changed files with 35 additions and 7 deletions
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38
sys/kern/kern_proc.c
View File

@ -900,10 +900,18 @@ sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
int *name = (int*) arg1;
u_int namelen = arg2;
struct proc *p;
int flags, doingzomb;
int flags, doingzomb, oid_number;
int error = 0;
if (oidp->oid_number == KERN_PROC_PID) {
oid_number = oidp->oid_number;
if (oid_number != KERN_PROC_ALL &&
(oid_number & KERN_PROC_INC_THREAD) == 0)
flags = KERN_PROC_NOTHREADS;
else {
flags = 0;
oid_number &= ~KERN_PROC_INC_THREAD;
}
if (oid_number == KERN_PROC_PID) {
if (namelen != 1)
return (EINVAL);
p = pfind((pid_t)name[0]);
@ -913,11 +921,11 @@ sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
PROC_UNLOCK(p);
return (error);
}
error = sysctl_out_proc(p, req, KERN_PROC_NOTHREADS);
error = sysctl_out_proc(p, req, flags);
return (error);
}
switch (oidp->oid_number) {
switch (oid_number) {
case KERN_PROC_ALL:
if (namelen != 0)
return (EINVAL);
@ -963,12 +971,11 @@ sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
PROC_UNLOCK(p);
continue;
}
flags = 0;
/*
* TODO - make more efficient (see notes below).
* do by session.
*/
switch (oidp->oid_number) {
switch (oid_number) {
case KERN_PROC_PGRP:
/* could do this by traversing pgrp */
@ -1013,7 +1020,6 @@ sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
break;
case KERN_PROC_PROC:
flags |= KERN_PROC_NOTHREADS;
break;
default:
@ -1187,3 +1193,21 @@ SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args, CTLFLAG_RW | CTLFLAG_ANYBODY,
SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD,
sysctl_kern_proc_sv_name, "Process syscall vector name (ABI type)");
SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
CTLFLAG_RD, sysctl_kern_proc, "Process table");
SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
CTLFLAG_RD, sysctl_kern_proc, "Process table");
SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
CTLFLAG_RD, sysctl_kern_proc, "Process table");
SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
CTLFLAG_RD, sysctl_kern_proc, "Process table");
SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
CTLFLAG_RD, sysctl_kern_proc, "Process table");
SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
CTLFLAG_RD, sysctl_kern_proc, "Return process table, no threads");

4
sys/sys/sysctl.h
View File

@ -421,6 +421,10 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
#define KERN_PROC_PROC 8 /* only return procs */
#define KERN_PROC_SV_NAME 9 /* get syscall vector name */
#define KERN_PROC_INC_THREAD 0x10 /*
* modifier for pid, pgrp, tty,
* uid, ruid, and proc
*/
/*
* KERN_IPC identifiers