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/*
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This file is part of LibGTop 2.0.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <unistd.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procmap.h>
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#include <glibtop_suid.h>
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#include <mach/mach_init.h>
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#include <mach/mach_host.h>
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#include <mach/vm_map.h>
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static const unsigned long _glibtop_sysdeps_proc_map =
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(1L << GLIBTOP_PROC_MAP_TOTAL) + (1L << GLIBTOP_PROC_MAP_NUMBER) +
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(1L << GLIBTOP_PROC_MAP_SIZE);
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static const unsigned long _glibtop_sysdeps_proc_map_entry =
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(1L << GLIBTOP_MAP_ENTRY_START) + (1L << GLIBTOP_MAP_ENTRY_END) +
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(1L << GLIBTOP_MAP_ENTRY_OFFSET) + (1L << GLIBTOP_MAP_ENTRY_PERM);
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/* Init function. */
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void
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_glibtop_init_proc_map_p (glibtop *server)
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{
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server->sysdeps.proc_map = _glibtop_sysdeps_proc_map;
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}
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/* Provides detailed information about a process. */
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glibtop_map_entry *
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glibtop_get_proc_map_p (glibtop *server, glibtop_proc_map *buf, pid_t pid)
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{
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glibtop_map_entry *maps;
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mach_port_t task;
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vm_address_t address;
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natural_t nesting_depth;
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int n;
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glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_PROC_MAP), 0);
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memset (buf, 0, sizeof (glibtop_proc_map));
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/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
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glibtop_suid_enter (server);
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if (task_for_pid (mach_task_self (), pid, &task) != KERN_SUCCESS) {
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glibtop_suid_leave (server);
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glibtop_warn_io_r (server, "task_for_pid (procmap)");
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return NULL;
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}
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maps = NULL;
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n = 0;
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address = 0;
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nesting_depth = 0;
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while (1) {
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vm_region_submap_info_data_64_t info;
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mach_msg_type_number_t info_count;
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vm_size_t size;
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info_count = VM_REGION_SUBMAP_INFO_COUNT_64;
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if (vm_region_recurse_64 (task, &address, &size, &nesting_depth,
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(vm_region_recurse_info_64_t)&info, &info_count))
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break;
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if (info.is_submap) {
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nesting_depth++;
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continue;
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}
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maps = g_realloc (maps, (n + 1) * sizeof (glibtop_map_entry));
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if (!maps) {
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glibtop_suid_leave (server);
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return NULL;
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}
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memset (maps + n, 0, sizeof (glibtop_map_entry));
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maps[n].start = address;
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maps[n].end = address + size - 1;
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maps[n].offset = info.offset;
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if (info.protection & VM_PROT_READ)
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maps[n].perm |= GLIBTOP_MAP_PERM_READ;
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if (info.protection & VM_PROT_WRITE)
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maps[n].perm |= GLIBTOP_MAP_PERM_WRITE;
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if (info.protection & VM_PROT_EXECUTE)
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maps[n].perm |= GLIBTOP_MAP_PERM_EXECUTE;
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if (info.share_mode == SM_PRIVATE ||
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info.share_mode == SM_PRIVATE_ALIASED)
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maps[n].perm |= GLIBTOP_MAP_PERM_PRIVATE;
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if (info.share_mode == SM_SHARED ||
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info.share_mode == SM_TRUESHARED ||
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info.share_mode == SM_SHARED_ALIASED)
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maps[n].perm |= GLIBTOP_MAP_PERM_SHARED;
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maps[n].flags = _glibtop_sysdeps_proc_map_entry;
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address += size;
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n++;
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}
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glibtop_suid_leave (server);
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/* !!! END OF SUID ROOT PART !!! */
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buf->number = n;
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buf->size = sizeof (glibtop_map_entry);
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buf->total = n * sizeof (glibtop_map_entry);
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buf->flags = _glibtop_sysdeps_proc_map;
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return maps;
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}
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