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/*
This file is part of LibGTop 2.0.
LibGTop 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.
LibGTop 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 LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <unistd.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procmap.h>
#include <glibtop_suid.h>
#include <mach/mach_init.h>
#include <mach/mach_host.h>
#include <mach/vm_map.h>
static const unsigned long _glibtop_sysdeps_proc_map =
(1L << GLIBTOP_PROC_MAP_TOTAL) + (1L << GLIBTOP_PROC_MAP_NUMBER) +
(1L << GLIBTOP_PROC_MAP_SIZE);
static const unsigned long _glibtop_sysdeps_proc_map_entry =
(1L << GLIBTOP_MAP_ENTRY_START) + (1L << GLIBTOP_MAP_ENTRY_END) +
(1L << GLIBTOP_MAP_ENTRY_OFFSET) + (1L << GLIBTOP_MAP_ENTRY_PERM);
/* Init function. */
void
_glibtop_init_proc_map_p (glibtop *server)
{
server->sysdeps.proc_map = _glibtop_sysdeps_proc_map;
}
/* Provides detailed information about a process. */
glibtop_map_entry *
glibtop_get_proc_map_p (glibtop *server, glibtop_proc_map *buf, pid_t pid)
{
glibtop_map_entry *maps;
mach_port_t task;
vm_address_t address;
natural_t nesting_depth;
int n;
glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_PROC_MAP), 0);
memset (buf, 0, sizeof (glibtop_proc_map));
/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
glibtop_suid_enter (server);
if (task_for_pid (mach_task_self (), pid, &task) != KERN_SUCCESS) {
glibtop_suid_leave (server);
glibtop_warn_io_r (server, "task_for_pid (procmap)");
return NULL;
}
maps = NULL;
n = 0;
address = 0;
nesting_depth = 0;
while (1) {
vm_region_submap_info_data_64_t info;
mach_msg_type_number_t info_count;
vm_size_t size;
info_count = VM_REGION_SUBMAP_INFO_COUNT_64;
if (vm_region_recurse_64 (task, &address, &size, &nesting_depth,
(vm_region_recurse_info_64_t)&info, &info_count))
break;
if (info.is_submap) {
nesting_depth++;
continue;
}
maps = g_realloc (maps, (n + 1) * sizeof (glibtop_map_entry));
if (!maps) {
glibtop_suid_leave (server);
return NULL;
}
memset (maps + n, 0, sizeof (glibtop_map_entry));
maps[n].start = address;
maps[n].end = address + size - 1;
maps[n].offset = info.offset;
if (info.protection & VM_PROT_READ)
maps[n].perm |= GLIBTOP_MAP_PERM_READ;
if (info.protection & VM_PROT_WRITE)
maps[n].perm |= GLIBTOP_MAP_PERM_WRITE;
if (info.protection & VM_PROT_EXECUTE)
maps[n].perm |= GLIBTOP_MAP_PERM_EXECUTE;
if (info.share_mode == SM_PRIVATE ||
info.share_mode == SM_PRIVATE_ALIASED)
maps[n].perm |= GLIBTOP_MAP_PERM_PRIVATE;
if (info.share_mode == SM_SHARED ||
info.share_mode == SM_TRUESHARED ||
info.share_mode == SM_SHARED_ALIASED)
maps[n].perm |= GLIBTOP_MAP_PERM_SHARED;
maps[n].flags = _glibtop_sysdeps_proc_map_entry;
address += size;
n++;
}
glibtop_suid_leave (server);
/* !!! END OF SUID ROOT PART !!! */
buf->number = n;
buf->size = sizeof (glibtop_map_entry);
buf->total = n * sizeof (glibtop_map_entry);
buf->flags = _glibtop_sysdeps_proc_map;
return maps;
}
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