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support printing rnd descriptor info

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This commit is contained in:
christos 2012-11-25 15:30:28 +00:00
parent 48ee8a077a
commit 3d7bb1da45
1 changed files with 42 additions and 4 deletions
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46
usr.bin/fstat/misc.c
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@ -1,4 +1,4 @@
/* $NetBSD: misc.c,v 1.10 2012/11/25 01:05:49 christos Exp $ */
/* $NetBSD: misc.c,v 1.11 2012/11/25 15:30:28 christos Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: misc.c,v 1.10 2012/11/25 01:05:49 christos Exp $");
__RCSID("$NetBSD: misc.c,v 1.11 2012/11/25 15:30:28 christos Exp $");
#define _KMEMUSER
#include <stdbool.h>
@ -50,6 +50,10 @@ __RCSID("$NetBSD: misc.c,v 1.10 2012/11/25 01:05:49 christos Exp $");
#include <sys/file.h>
#define copyout_t int
#include <sys/ksem.h>
#define _LIB_LIBKERN_LIBKERN_H_
#define mutex_enter(a)
#define mutex_exit(a)
#include <sys/cprng.h>
#undef _KERNEL
#include <sys/vnode.h>
#include <sys/mount.h>
@ -57,6 +61,7 @@ __RCSID("$NetBSD: misc.c,v 1.10 2012/11/25 01:05:49 christos Exp $");
#include <net/bpfdesc.h>
#include <err.h>
#include <util.h>
#include <string.h>
#include <kvm.h>
#include "fstat.h"
@ -96,7 +101,9 @@ static struct nlist nl[] = {
{ .n_name = "vnops" },
#define NL_XENEVT 16
{ .n_name = "xenevt_fileops" },
#define NL_MAX 17
#define NL_RND 17
{ .n_name = "rnd_fileops" },
#define NL_MAX 18
{ .n_name = NULL }
};
@ -189,6 +196,35 @@ p_kqueue(struct file *f)
return 0;
}
static int
p_rnd(struct file *f)
{
rp_ctx_t rp;
if (!KVM_READ(f->f_data, &rp, sizeof(rp))) {
dprintf("can't read rnd at %p for pid %d", f->f_data, Pid);
return 0;
}
(void)printf("* rnd ");
if (rp.hard)
printf("bytesonkey=%d, ", rp.bytesonkey);
if (rp.cprng) {
cprng_strong_t cprng;
if (!KVM_READ(rp.cprng, &cprng, sizeof(cprng))) {
dprintf("can't read rnd cprng at %p for pid %d",
rp.cprng, Pid);
} else {
char buf[128];
snprintb(buf, sizeof(buf), CPRNG_FMT, cprng.flags);
(void)printf("name=%s, serial=%d%s, flags=%s\n",
cprng.name, cprng.entropy_serial,
cprng.reseed_pending ? ", reseed" : "", buf);
return 0;
}
}
printf("\n");
return 0;
}
int
pmisc(struct file *f, const char *name)
{
@ -222,6 +258,8 @@ pmisc(struct file *f, const char *name)
return p_kqueue(f);
case NL_SEM:
return p_sem(f);
case NL_RND:
return p_rnd(f);
case NL_TAP:
printf("* tap %lu\n", (unsigned long)(intptr_t)f->f_data);
return 0;
@ -229,7 +267,7 @@ pmisc(struct file *f, const char *name)
printf("* crypto %p\n", f->f_data);
return 0;
case NL_MAX:
printf("* %s %p\n", name, f->f_data);
printf("* %s ops=%p %p\n", name, f->f_ops, f->f_data);
return 0;
default:
printf("* %s %p\n", nl[i].n_name, f->f_data);