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/*
* HT Editor
* htelfphs.cc
*
* Copyright (C) 1999-2002 Stefan Weyergraf
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "elfstruc.h"
#include "atom.h"
#include "htelf.h"
#include "htelfphs.h"
#include "httag.h"
#include "formats.h"
#include "snprintf.h"
static ht_mask_ptable elfprogramheader32[]=
{
{"type", STATICTAG_EDIT_DWORD_VE("00000000")" ("STATICTAG_DESC_DWORD_VE("00000000", ATOM_ELF_PH_TYPE_STR)")"},
{"offset", STATICTAG_EDIT_DWORD_VE("00000004")},
{"virtual address", STATICTAG_EDIT_DWORD_VE("00000008")},
{"physical address", STATICTAG_EDIT_DWORD_VE("0000000c")},
{"in file size", STATICTAG_EDIT_DWORD_VE("00000010")},
{"in memory size", STATICTAG_EDIT_DWORD_VE("00000014")},
{"flags", STATICTAG_EDIT_DWORD_VE("00000018")" "STATICTAG_FLAGS("00000018", ATOM_ELF_PH_FLAGS_STR)},
{"alignment", STATICTAG_EDIT_DWORD_VE("0000001c")},
{0, 0}
};
static ht_mask_ptable elfprogramheader64[]=
{
{"type", STATICTAG_EDIT_DWORD_VE("00000000")" ("STATICTAG_DESC_DWORD_VE("00000000", ATOM_ELF_PH_TYPE_STR)")"},
{"flags", STATICTAG_EDIT_DWORD_VE("00000004")" "STATICTAG_FLAGS("00000004", ATOM_ELF_PH_FLAGS_STR)},
{"offset", STATICTAG_EDIT_QWORD_VE("00000008")},
{"virtual address", STATICTAG_EDIT_QWORD_VE("00000010")},
{"physical address", STATICTAG_EDIT_QWORD_VE("00000018")},
{"in file size", STATICTAG_EDIT_QWORD_VE("00000020")},
{"in memory size", STATICTAG_EDIT_QWORD_VE("00000028")},
{"alignment", STATICTAG_EDIT_QWORD_VE("00000030")},
{0, 0}
};
static int_hash elf_ph_type[] =
{
{ELF_PT_NULL, "null"},
{ELF_PT_LOAD, "load"},
{ELF_PT_DYNAMIC, "dynamic"},
{ELF_PT_INTERP, "interp"},
{ELF_PT_NOTE, "note"},
{ELF_PT_SHLIB, "shlib"},
{ELF_PT_PHDR, "phdr"},
{ELF_PT_TLS, "tls"},
{ELF_PT_NUM, "num"},
{ELF_PT_GNU_EH_FRAME, "gnu eh frame"},
{ELF_PT_GNU_STACK, "gnu stack"},
{ELF_PT_GNU_RELRO, "gnu relro"},
{ELF_PT_PAX_FLAGS, "pax flags"},
{0, 0}
};
static ht_tag_flags_s elf_ph_flags[] =
{
{0, "[00] executable"},
{1, "[01] writable"},
{2, "[02] readable"},
{0, 0}
};
static ht_view *htelfprogramheaders_init(Bounds *b, File *file, ht_format_group *group)
{
ht_elf_shared_data *elf_shared = (ht_elf_shared_data *)group->get_shared_data();
if (!elf_shared->pheaders.count) return NULL;
bool elf_bigendian = (elf_shared->ident.e_ident[ELF_EI_DATA] == ELFDATA2MSB);
ht_uformat_viewer *v = NULL;
if (elf_shared->ident.e_ident[ELF_EI_CLASS]==ELFCLASS32) {
v = new ht_uformat_viewer();
v->init(b, DESC_ELF_PROGRAM_HEADERS, VC_EDIT, file, group);
registerAtom(ATOM_ELF_PH_TYPE, elf_ph_type);
registerAtom(ATOM_ELF_PH_FLAGS, elf_ph_flags);
FileOfs h = elf_shared->header32.e_phoff;
ht_mask_sub *m = new ht_mask_sub();
m->init(file, 0);
char info[128];
ht_snprintf(info, sizeof info, "* ELF program headers at offset %08qx", h);
m->add_mask(info);
v->insertsub(m);
for (uint i=0; i < elf_shared->pheaders.count; i++) {
ht_mask_sub *n = new ht_mask_sub();
n->init(file, i);
char t[32];
const char *etype = matchhash(elf_shared->pheaders.pheaders32[i].p_type, elf_ph_type);
if (!etype) etype = "?";
ht_snprintf(t, sizeof t, "entry %d (%s)", i, etype);
n->add_staticmask_ptable(elfprogramheader32, h+i*elf_shared->header32.e_phentsize, elf_bigendian);
ht_collapsable_sub *cn=new ht_collapsable_sub();
cn->init(file, n, 1, t, 1);
v->insertsub(cn);
}
} else if (elf_shared->ident.e_ident[ELF_EI_CLASS]==ELFCLASS64) {
v = new ht_uformat_viewer();
v->init(b, DESC_ELF_PROGRAM_HEADERS, VC_EDIT, file, group);
registerAtom(ATOM_ELF_PH_TYPE, elf_ph_type);
registerAtom(ATOM_ELF_PH_FLAGS, elf_ph_flags);
FileOfs h = elf_shared->header64.e_phoff;
ht_mask_sub *m=new ht_mask_sub();
m->init(file, 0);
char info[128];
ht_snprintf(info, sizeof info, "* ELF program headers at offset 0x%08qx", h);
m->add_mask(info);
v->insertsub(m);
for (uint i=0; i<elf_shared->pheaders.count; i++) {
ht_mask_sub *n=new ht_mask_sub();
n->init(file, i);
char t[32];
const char *etype=matchhash(elf_shared->pheaders.pheaders64[i].p_type, elf_ph_type);
if (!etype) etype="?";
ht_snprintf(t, sizeof t, "entry %d (%s)", i, etype);
n->add_staticmask_ptable(elfprogramheader64, h+i*elf_shared->header64.e_phentsize, elf_bigendian);
ht_collapsable_sub *cn=new ht_collapsable_sub();
cn->init(file, n, 1, t, 1);
v->insertsub(cn);
}
}
return v;
}
format_viewer_if htelfprogramheaders_if = {
htelfprogramheaders_init,
0
};
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