audit_bsm_socket_type.c [plain text]
#include <sys/param.h>
#include <sys/socket.h>
#include <security/audit/audit.h>
#include <bsm/audit_record.h>
#include <bsm/audit_socket_type.h>
#if CONFIG_AUDIT
struct bsm_socket_type {
u_short bst_bsm_socket_type;
int bst_local_socket_type;
};
#define ST_NO_LOCAL_MAPPING -600
static const struct bsm_socket_type bsm_socket_types[] = {
{ BSM_SOCK_DGRAM, SOCK_DGRAM },
{ BSM_SOCK_STREAM, SOCK_STREAM },
{ BSM_SOCK_RAW, SOCK_RAW },
{ BSM_SOCK_RDM, SOCK_RDM },
{ BSM_SOCK_SEQPACKET, SOCK_SEQPACKET },
};
static const int bsm_socket_types_count = sizeof(bsm_socket_types) /
sizeof(bsm_socket_types[0]);
static const struct bsm_socket_type *
bsm_lookup_local_socket_type(int local_socket_type)
{
int i;
for (i = 0; i < bsm_socket_types_count; i++) {
if (bsm_socket_types[i].bst_local_socket_type ==
local_socket_type)
return (&bsm_socket_types[i]);
}
return (NULL);
}
u_short
au_socket_type_to_bsm(int local_socket_type)
{
const struct bsm_socket_type *bstp;
bstp = bsm_lookup_local_socket_type(local_socket_type);
if (bstp == NULL)
return (BSM_SOCK_UNKNOWN);
return (bstp->bst_bsm_socket_type);
}
static const struct bsm_socket_type *
bsm_lookup_bsm_socket_type(u_short bsm_socket_type)
{
int i;
for (i = 0; i < bsm_socket_types_count; i++) {
if (bsm_socket_types[i].bst_bsm_socket_type ==
bsm_socket_type)
return (&bsm_socket_types[i]);
}
return (NULL);
}
int
au_bsm_to_socket_type(u_short bsm_socket_type, int *local_socket_typep)
{
const struct bsm_socket_type *bstp;
bstp = bsm_lookup_bsm_socket_type(bsm_socket_type);
if (bstp == NULL || bstp->bst_local_socket_type)
return (-1);
*local_socket_typep = bstp->bst_local_socket_type;
return (0);
}
#endif