freebsd-dev/usr.bin/procstat/procstat_auxv.c
Allan Jude dafe59a9ec Fix inverted output re: stack protection no-execute flag in procstat(1)
PR:		196110
Submitted by:	Joerg Pernfuss <code.jpe@gmail.com>
Approved by:	bapt (mentor)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D3576
2015-09-06 17:47:03 +00:00

190 lines
5.7 KiB
C

/*-
* Copyright (c) 2011 Mikolaj Golub
* Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/elf.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <vm/vm.h>
#include <err.h>
#include <errno.h>
#include <libprocstat.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "procstat.h"
void
procstat_auxv(struct procstat *procstat, struct kinfo_proc *kipp)
{
Elf_Auxinfo *auxv;
u_int count, i;
static char prefix[256];
if (!hflag)
xo_emit("{T:/%5s %-16s %-16s %-16s}\n", "PID", "COMM", "AUXV",
"VALUE");
auxv = procstat_getauxv(procstat, kipp, &count);
if (auxv == NULL)
return;
snprintf(prefix, sizeof(prefix), "%5d %-16s", kipp->ki_pid,
kipp->ki_comm);
xo_emit("{e:process_id/%5d/%d}{e:command/%-16s/%s}", kipp->ki_pid,
kipp->ki_comm);
for (i = 0; i < count; i++) {
switch(auxv[i].a_type) {
case AT_NULL:
return;
case AT_IGNORE:
break;
case AT_EXECFD:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECFD/%ld}\n",
prefix, "AT_EXECFD", (long)auxv[i].a_un.a_val);
break;
case AT_PHDR:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHDR/%p}\n",
prefix, "AT_PHDR", auxv[i].a_un.a_ptr);
break;
case AT_PHENT:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHENT/%ld}\n",
prefix, "AT_PHENT", (long)auxv[i].a_un.a_val);
break;
case AT_PHNUM:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHNUM/%ld}\n",
prefix, "AT_PHNUM", (long)auxv[i].a_un.a_val);
break;
case AT_PAGESZ:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESZ/%ld}\n",
prefix, "AT_PAGESZ", (long)auxv[i].a_un.a_val);
break;
case AT_BASE:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_BASE/%p}\n",
prefix, "AT_BASE", auxv[i].a_un.a_ptr);
break;
case AT_FLAGS:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_FLAGS/%#lx}\n",
prefix, "AT_FLAGS", (u_long)auxv[i].a_un.a_val);
break;
case AT_ENTRY:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENTRY/%p}\n",
prefix, "AT_ENTRY", auxv[i].a_un.a_ptr);
break;
#ifdef AT_NOTELF
case AT_NOTELF:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NOTELF/%ld}\n",
prefix, "AT_NOTELF", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_UID
case AT_UID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_UID/%ld}\n",
prefix, "AT_UID", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_EUID
case AT_EUID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EUID/%ld}\n",
prefix, "AT_EUID", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_GID
case AT_GID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_GID/%ld}\n",
prefix, "AT_GID", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_EGID
case AT_EGID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EGID/%ld}\n",
prefix, "AT_EGID", (long)auxv[i].a_un.a_val);
break;
#endif
case AT_EXECPATH:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECPATH/%p}\n",
prefix, "AT_EXECPATH", auxv[i].a_un.a_ptr);
break;
case AT_CANARY:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARY/%p}\n",
prefix, "AT_CANARY", auxv[i].a_un.a_ptr);
break;
case AT_CANARYLEN:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARYLEN/%ld}\n",
prefix, "AT_CANARYLEN", (long)auxv[i].a_un.a_val);
break;
case AT_OSRELDATE:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_OSRELDATE/%ld}\n",
prefix, "AT_OSRELDATE", (long)auxv[i].a_un.a_val);
break;
case AT_NCPUS:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NCPUS/%ld}\n",
prefix, "AT_NCPUS", (long)auxv[i].a_un.a_val);
break;
case AT_PAGESIZES:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESIZES/%p}\n",
prefix, "AT_PAGESIZES", auxv[i].a_un.a_ptr);
break;
case AT_PAGESIZESLEN:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
"{:AT_PAGESIZESLEN/%ld}\n", prefix,
"AT_PAGESIZESLEN", (long)auxv[i].a_un.a_val);
break;
case AT_STACKPROT:
if ((auxv[i].a_un.a_val & VM_PROT_EXECUTE) != 0)
xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
"{:AT_STACKPROT/%s}\n", prefix,
"AT_STACKPROT", "EXECUTABLE");
else
xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
"{:AT_STACKPROT/%s}\n", prefix,
"AT_STACKPROT", "NONEXECUTABLE");
break;
#ifdef AT_TIMEKEEP
case AT_TIMEKEEP:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_TIMEKEEP/%p}\n",
prefix, "AT_TIMEKEEP", auxv[i].a_un.a_ptr);
break;
#endif
default:
xo_emit("{dw:/%s}{Lw:/%16ld/%ld}{:UNKNOWN/%#lx}\n",
prefix, auxv[i].a_type, auxv[i].a_un.a_val);
break;
}
}
xo_emit("\n");
procstat_freeauxv(procstat, auxv);
}