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/* Audit module for tst-audit24d.
Copyright (C) 2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <link.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <tst-auditmod24.h>
#define AUDIT24_COOKIE 0x0
#define AUDIT24MOD1_COOKIE 0x1
#define AUDIT24MOD2_COOKIE 0x2
#define AUDIT24MOD3_COOKIE 0x3
#define AUDIT24MOD4_COOKIE 0x4
unsigned int
la_version (unsigned int version)
{
return LAV_CURRENT;
}
unsigned int
la_objopen (struct link_map *map, Lmid_t lmid, uintptr_t *cookie)
{
const char *p = strrchr (map->l_name, '/');
const char *l_name = p == NULL ? "tst-audit24d" : p + 1;
uintptr_t ck = -1;
if (strcmp (l_name, "tst-audit24dmod1.so") == 0)
ck = AUDIT24MOD1_COOKIE;
else if (strcmp (l_name, "tst-audit24dmod2.so") == 0)
ck = AUDIT24MOD2_COOKIE;
else if (strcmp (l_name, "tst-audit24dmod3.so") == 0)
ck = AUDIT24MOD3_COOKIE;
else if (strcmp (l_name, "tst-audit24dmod.so") == 0)
ck = AUDIT24MOD4_COOKIE;
else if (strcmp (l_name, "tst-audit24d") == 0)
ck = AUDIT24_COOKIE;
*cookie = ck;
return ck == -1 ? 0 : LA_FLG_BINDFROM | LA_FLG_BINDTO;
}
static int
tst_audit24dmod1_func1 (void)
{
return 1;
}
static int
tst_audit24dmod2_func1 (void)
{
return 10;
}
static int
tst_audit24dmod3_func1 (void)
{
return 30;
}
#include <stdio.h>
#if __ELF_NATIVE_CLASS == 64
uintptr_t
la_symbind64 (Elf64_Sym *sym, unsigned int ndx,
uintptr_t *refcook, uintptr_t *defcook,
unsigned int *flags, const char *symname)
#else
uintptr_t
la_symbind32 (Elf32_Sym *sym, unsigned int ndx,
uintptr_t *refcook, uintptr_t *defcook,
unsigned int *flags, const char *symname)
#endif
{
if (*refcook == AUDIT24_COOKIE)
{
if (*defcook == AUDIT24MOD1_COOKIE)
{
if (strcmp (symname, "tst_audit24dmod1_func1") == 0)
return (uintptr_t) tst_audit24dmod1_func1;
else if (strcmp (symname, "tst_audit24dmod1_func2") == 0)
return sym->st_value;
abort ();
}
if (*defcook == AUDIT24MOD2_COOKIE
&& (strcmp (symname, "tst_audit24dmod2_func1") == 0))
return (uintptr_t) tst_audit24dmod2_func1;
/* malloc functions. */
return sym->st_value;
}
else if (*refcook == AUDIT24MOD1_COOKIE)
{
if (*defcook == AUDIT24MOD3_COOKIE
&& strcmp (symname, "tst_audit24dmod3_func1") == 0)
{
test_symbind_flags (*flags);
return (uintptr_t) tst_audit24dmod3_func1;
}
}
if (symname[0] != '\0')
abort ();
return sym->st_value;
}
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