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check on-disk and loaded segment integrity of libstrongswan

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This commit is contained in:
Martin Willi
2009-06-22 15:47:17 +02:00
parent d88bcee079
commit 6a8c8815fe
3 changed files with 35 additions and 3 deletions
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src/libstrongswan/integrity_checker.c
+25 -1
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@@ -137,7 +137,7 @@ static u_int32_t build_segment(private_integrity_checker_t *this, void *sym)
if (dladdr(sym, &dli) == 0)
{
DBG1("unable to locate symbol: %s", strerror(errno));
DBG1("unable to locate symbol: %s", dlerror());
return 0;
}
/* we reuse the Dl_info struct as in/out parameter */
@@ -220,6 +220,29 @@ static bool check_segment(private_integrity_checker_t *this,
return TRUE;
}
/**
* Implementation of integrity_checker_t.check
*/
static bool check(private_integrity_checker_t *this, char *name, void *sym)
{
Dl_info dli;
if (dladdr(sym, &dli) == 0)
{
DBG1("unable to locate symbol: %s", dlerror());
return FALSE;
}
if (!check_file(this, name, (char*)dli.dli_fname))
{
return FALSE;
}
if (!check_segment(this, name, sym))
{
return FALSE;
}
return TRUE;
}
/**
* Implementation of integrity_checker_t.destroy.
*/
@@ -243,6 +266,7 @@ integrity_checker_t *integrity_checker_create(char *checksum_library)
this->public.build_file = (u_int32_t(*)(integrity_checker_t*, char *file))build_file;
this->public.check_segment = (bool(*)(integrity_checker_t*, char *name, void *sym))check_segment;
this->public.build_segment = (u_int32_t(*)(integrity_checker_t*, void *sym))build_segment;
this->public.check = (bool(*)(integrity_checker_t*, char *name, void *sym))check;
this->public.destroy = (void(*)(integrity_checker_t*))destroy;
this->checksum_count = 0;