Four .c files from OpenBSM are used, in modified form, by the kernel to

implement the BSM audit trail format.  Rename the kernel versions of the
files to match the userspace filenames so that it's easier to work out
what they correspond to, and therefore ensure they are kept in-sync.

Obtained from:	TrustedBSD Project

1 files changed, 107 insertions, 0 deletions

diff --git a/sys/security/audit/bsm_socket_type.c b/sys/security/audit/bsm_socket_type.c
new file mode 100644
index 0000000..c049179
--- /dev/null
+++ b/sys/security/audit/bsm_socket_type.c
@@ -0,0 +1,107 @@
+/*-
+ * Copyright (c) 2008 Apple Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE. 
+ *
+ * P4: //depot/projects/trustedbsd/openbsm/libbsm/bsm_socket_type.c#1
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/socket.h>
+
+#include <security/audit/audit.h>
+
+#include <bsm/audit_record.h>
+#include <bsm/audit_socket_type.h>
+
+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);
+}