C++ (Cpp) sysctl_rdint示例

示例#1

文件： machdep.c 项目： avsm/openbsd-xen-sys

int
bios_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen, struct proc *p)
{
	bios_diskinfo_t *pdi;
	extern dev_t bootdev;
	int biosdev;

	/* all sysctl names at this level except diskinfo are terminal */
	if (namelen != 1 && name[0] != BIOS_DISKINFO)
		return (ENOTDIR);	       /* overloaded */

	if (!(bootapiver & BAPIV_VECTOR))
		return EOPNOTSUPP;

	switch (name[0]) {
	case BIOS_DEV:
		if ((pdi = bios_getdiskinfo(bootdev)) == NULL)
			return ENXIO;
		biosdev = pdi->bios_number;
		return sysctl_rdint(oldp, oldlenp, newp, biosdev);
	case BIOS_DISKINFO:
		if (namelen != 2)
			return ENOTDIR;
		if ((pdi = bios_getdiskinfo(name[1])) == NULL)
			return ENXIO;
		return sysctl_rdstruct(oldp, oldlenp, newp, pdi, sizeof(*pdi));
	case BIOS_CKSUMLEN:
		return sysctl_rdint(oldp, oldlenp, newp, bios_cksumlen);
	default:
		return EOPNOTSUPP;
	}
	/* NOTREACHED */
}

示例#2

文件： machdep.c 项目： avsm/openbsd-xen-sys

/*  
 * machine dependent system variables.
 */ 
int
cpu_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen, struct proc *p)
{
	dev_t consdev;
	dev_t dev;

	switch (name[0]) {
	case CPU_CONSDEV:
		if (namelen != 1)
			return (ENOTDIR);		/* overloaded */
		if (cn_tab != NULL)
			consdev = cn_tab->cn_dev;
		else
			consdev = NODEV;
		return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev,
		    sizeof consdev));
	case CPU_CHR2BLK:
		if (namelen != 2)
			return (ENOTDIR);		/* overloaded */
		dev = chrtoblk((dev_t)name[1]);
		return sysctl_rdstruct(oldp, oldlenp, newp, &dev, sizeof(dev));
	case CPU_BIOS:
		return bios_sysctl(name + 1, namelen - 1, oldp, oldlenp,
		    newp, newlen, p);
	case CPU_CPUVENDOR:
		return (sysctl_rdstring(oldp, oldlenp, newp, cpu_vendor));
	case CPU_CPUFEATURE:
		return (sysctl_rdint(oldp, oldlenp, newp, cpu_feature));
	case CPU_KBDRESET:
		if (securelevel > 0)
			return (sysctl_rdint(oldp, oldlenp, newp,
			    kbd_reset));
		else
			return (sysctl_int(oldp, oldlenp, newp, newlen,
			    &kbd_reset));
	case CPU_ALLOWAPERTURE:
		if (namelen != 1)
			return (ENOTDIR);		/* overloaded */
#ifdef APERTURE
		if (securelevel > 0)
			return (sysctl_int_lower(oldp, oldlenp, newp, newlen,
			    &allowaperture));
		else
			return (sysctl_int(oldp, oldlenp, newp, newlen,
			    &allowaperture));
#else
		return (sysctl_rdint(oldp, oldlenp, newp, 0));
#endif
	default:
		return (EOPNOTSUPP);
	}
	/* NOTREACHED */
}

示例#3

文件： tty_pty.c 项目： repos-holder/openbsd-patches

/*
 * Return pty-related information.
 */
int
sysctl_pty(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen)
{
	int error, oldmax;

	if (namelen != 1)
		return (ENOTDIR);

	switch (name[0]) {
	case KERN_TTY_MAXPTYS:
		if (!newp)
			return (sysctl_rdint(oldp, oldlenp, newp, maxptys));
		rw_enter_write(&pt_softc_lock);
		oldmax = maxptys;
		error = sysctl_int(oldp, oldlenp, newp, newlen, &maxptys);
		/*
		 * We can't set the max lower than the current active
		 * value or to a value bigger than NPTY_MAX.
		 */
		if (error == 0 && (maxptys > NPTY_MAX || maxptys < npty)) {
			maxptys = oldmax;
			error = ERANGE;
		}
		rw_exit_write(&pt_softc_lock);
		return (error);
	case KERN_TTY_NPTYS:
		return (sysctl_rdint(oldp, oldlenp, newp, npty));
#ifdef notyet
	case KERN_TTY_GID:
		return (sysctl_int(oldp, oldlenp, newp, newlen, &tty_gid));
#endif
	default:
		return (EOPNOTSUPP);
	}
	/* NOTREACHED */
}

示例#4

文件： kern_tc.c 项目： 7shi/openbsd-loongson-vc

/*
 * Return timecounter-related information.
 */
int
sysctl_tc(int *name, u_int namelen, void *oldp, size_t *oldlenp,
    void *newp, size_t newlen)
{
	if (namelen != 1)
		return (ENOTDIR);

	switch (name[0]) {
	case KERN_TIMECOUNTER_TICK:
		return (sysctl_rdint(oldp, oldlenp, newp, tc_tick));
	case KERN_TIMECOUNTER_TIMESTEPWARNINGS:
		return (sysctl_int(oldp, oldlenp, newp, newlen,
		    &timestepwarnings));
	case KERN_TIMECOUNTER_HARDWARE:
		return (sysctl_tc_hardware(oldp, oldlenp, newp, newlen));
	case KERN_TIMECOUNTER_CHOICE:
		return (sysctl_tc_choice(oldp, oldlenp, newp, newlen));
	default:
		return (EOPNOTSUPP);
	}
	/* NOTREACHED */
}

示例#5

文件： machdep.c 项目： alenichev/openbsd-kernel

int
cpu_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen, struct proc *p)
{
	int oldval, ret;

	/* all sysctl names at this level are terminal */
	if (namelen != 1)
		return (ENOTDIR);		/* overloaded */

	switch (name[0]) {
	case CPU_CONSDEV: {
		dev_t consdev;
		if (cn_tab != NULL)
			consdev = cn_tab->cn_dev;
		else
			consdev = NODEV;
		return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev,
		    sizeof consdev));
	}

	case CPU_KBDRESET:
		if (securelevel > 0)
			return (sysctl_rdint(oldp, oldlenp, newp, kbd_reset));
		return (sysctl_int(oldp, oldlenp, newp, newlen, &kbd_reset));

	case CPU_LED_BLINK:
		oldval = led_blink;
		ret = sysctl_int(oldp, oldlenp, newp, newlen, &led_blink);
		if (oldval != led_blink)
			blink_led(NULL);
		return (ret);

	default:
		return (EOPNOTSUPP);
	}
	/* NOTREACHED */
}

示例#6

/*
 * fast filesystem related variables.
 */
int
ffs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen, struct proc *p)
{
	extern int doclusterread, doclusterwrite, doreallocblks, doasyncfree;
#ifdef FFS_SOFTUPDATES
	extern int max_softdeps, tickdelay, stat_worklist_push;
	extern int stat_blk_limit_push, stat_ino_limit_push, stat_blk_limit_hit;
	extern int stat_ino_limit_hit, stat_sync_limit_hit, stat_indir_blk_ptrs;
	extern int stat_inode_bitmap, stat_direct_blk_ptrs, stat_dir_entry;
#endif

	/* all sysctl names at this level are terminal */
	if (namelen != 1)
		return (ENOTDIR);		/* overloaded */

	switch (name[0]) {
	case FFS_CLUSTERREAD:
		return (sysctl_int(oldp, oldlenp, newp, newlen,
		    &doclusterread));
	case FFS_CLUSTERWRITE:
		return (sysctl_int(oldp, oldlenp, newp, newlen,
		    &doclusterwrite));
	case FFS_REALLOCBLKS:
		return (sysctl_int(oldp, oldlenp, newp, newlen,
		    &doreallocblks));
	case FFS_ASYNCFREE:
		return (sysctl_int(oldp, oldlenp, newp, newlen, &doasyncfree));
#ifdef FFS_SOFTUPDATES
	case FFS_MAX_SOFTDEPS:
		return (sysctl_int(oldp, oldlenp, newp, newlen, &max_softdeps));
	case FFS_SD_TICKDELAY:
		return (sysctl_int(oldp, oldlenp, newp, newlen, &tickdelay));
	case FFS_SD_WORKLIST_PUSH:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_worklist_push));
	case FFS_SD_BLK_LIMIT_PUSH:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_blk_limit_push));
	case FFS_SD_INO_LIMIT_PUSH:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_ino_limit_push));
	case FFS_SD_BLK_LIMIT_HIT:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_blk_limit_hit));
	case FFS_SD_INO_LIMIT_HIT:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_ino_limit_hit));
	case FFS_SD_SYNC_LIMIT_HIT:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_sync_limit_hit));
	case FFS_SD_INDIR_BLK_PTRS:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_indir_blk_ptrs));
	case FFS_SD_INODE_BITMAP:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_inode_bitmap));
	case FFS_SD_DIRECT_BLK_PTRS:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_direct_blk_ptrs));
	case FFS_SD_DIR_ENTRY:
		return (sysctl_rdint(oldp, oldlenp, newp, stat_dir_entry));
#endif
#ifdef UFS_DIRHASH
	case FFS_DIRHASH_DIRSIZE:
		return (sysctl_int(oldp, oldlenp, newp, newlen,
		    &ufs_mindirhashsize));
	case FFS_DIRHASH_MAXMEM:
		return (sysctl_int(oldp, oldlenp, newp, newlen,
		    &ufs_dirhashmaxmem));
	case FFS_DIRHASH_MEM:
		return (sysctl_rdint(oldp, oldlenp, newp, ufs_dirhashmem));
#endif

	default:
		return (EOPNOTSUPP);
	}
	/* NOTREACHED */
}

示例#7

文件： db_usrreq.c 项目： ajinkya93/OpenBSD

int
ddb_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
    size_t newlen, struct proc *p)
{
	int error, ctlval;

	/* All sysctl names at this level are terminal. */
	if (namelen != 1)
		return (ENOTDIR);

	switch (name[0]) {

	case DBCTL_RADIX:
		return sysctl_int(oldp, oldlenp, newp, newlen, &db_radix);
	case DBCTL_MAXWIDTH:
		return sysctl_int(oldp, oldlenp, newp, newlen, &db_max_width);
	case DBCTL_TABSTOP:
		return sysctl_int(oldp, oldlenp, newp, newlen, &db_tab_stop_width);
	case DBCTL_MAXLINE:
		return sysctl_int(oldp, oldlenp, newp, newlen, &db_max_line);
	case DBCTL_PANIC:
		if (securelevel > 0)
			return (sysctl_int_lower(oldp, oldlenp, newp, newlen,
			    &db_panic));
		else {
			ctlval = db_panic;
			if ((error = sysctl_int(oldp, oldlenp, newp, newlen,
			    &ctlval)) || newp == NULL)
				return (error);
			if (ctlval != 1 && ctlval != 0)
				return (EINVAL);
			db_panic = ctlval;
			return (0);
		}
		break;
	case DBCTL_CONSOLE:
		if (securelevel > 0)
			return (sysctl_int_lower(oldp, oldlenp, newp, newlen,
			    &db_console));
		else {
			ctlval = db_console;
			if ((error = sysctl_int(oldp, oldlenp, newp, newlen,
			    &ctlval)) || newp == NULL)
				return (error);
			if (ctlval != 1 && ctlval != 0)
				return (EINVAL);
			db_console = ctlval;
			return (0);
		}
		break;
	case DBCTL_LOG:
		return (sysctl_int(oldp, oldlenp, newp, newlen, &db_log));
	case DBCTL_TRIGGER:
		if (newp && db_console) {
			struct process *pr = curproc->p_p;

			if (securelevel < 1 ||
			    (pr->ps_flags & PS_CONTROLT && cn_tab &&
			    cn_tab->cn_dev == pr->ps_session->s_ttyp->t_dev)) {
				Debugger();
				newp = NULL;
			} else
				return (ENODEV);
		}
		return (sysctl_rdint(oldp, oldlenp, newp, 0));
	default:
		return (EOPNOTSUPP);
	}
	/* NOTREACHED */
}