1 files changed, 114 insertions, 0 deletions

diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
new file mode 100644
index 000000000000..140c8efcf364
--- /dev/null
+++ b/security/apparmor/include/net.h
@@ -0,0 +1,114 @@
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor network mediation definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ */
+
+#ifndef __AA_NET_H
+#define __AA_NET_H
+
+#include <net/sock.h>
+#include <linux/path.h>
+
+#include "apparmorfs.h"
+#include "label.h"
+#include "perms.h"
+#include "policy.h"
+
+#define AA_MAY_SEND             AA_MAY_WRITE
+#define AA_MAY_RECEIVE          AA_MAY_READ
+
+#define AA_MAY_SHUTDOWN         AA_MAY_DELETE
+
+#define AA_MAY_CONNECT          AA_MAY_OPEN
+#define AA_MAY_ACCEPT           0x00100000
+
+#define AA_MAY_BIND             0x00200000
+#define AA_MAY_LISTEN           0x00400000
+
+#define AA_MAY_SETOPT           0x01000000
+#define AA_MAY_GETOPT           0x02000000
+
+#define NET_PERMS_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |    \
+                        AA_MAY_SHUTDOWN | AA_MAY_BIND | AA_MAY_LISTEN |   \
+                        AA_MAY_CONNECT | AA_MAY_ACCEPT | AA_MAY_SETATTR | \
+                        AA_MAY_GETATTR | AA_MAY_SETOPT | AA_MAY_GETOPT)
+
+#define NET_FS_PERMS (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |    \
+                      AA_MAY_SHUTDOWN | AA_MAY_CONNECT | AA_MAY_RENAME |\
+                      AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_CHMOD |  \
+                      AA_MAY_CHOWN | AA_MAY_CHGRP | AA_MAY_LOCK |       \
+                      AA_MAY_MPROT)
+
+#define NET_PEER_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CONNECT |  \
+                       AA_MAY_ACCEPT)
+struct aa_sk_ctx {
+        struct aa_label *label;
+        struct aa_label *peer;
+        struct path path;
+};
+
+#define SK_CTX(X) ((X)->sk_security)
+#define SOCK_ctx(X) SOCK_INODE(X)->i_security
+#define DEFINE_AUDIT_NET(NAME, OP, SK, F, T, P)                           \
+        struct lsm_network_audit NAME ## _net = { .sk = (SK),             \
+                                                  .family = (F)};         \
+        DEFINE_AUDIT_DATA(NAME,                                           \
+                          ((SK) && (F) != AF_UNIX) ? LSM_AUDIT_DATA_NET : \
+                                                     LSM_AUDIT_DATA_NONE, \
+                          OP);                                            \
+        NAME.u.net = &(NAME ## _net);                                     \
+        aad(&NAME)->net.type = (T);                                       \
+        aad(&NAME)->net.protocol = (P)
+
+#define DEFINE_AUDIT_SK(NAME, OP, SK)                                   \
+        DEFINE_AUDIT_NET(NAME, OP, SK, (SK)->sk_family, (SK)->sk_type,  \
+                         (SK)->sk_protocol)
+
+/* struct aa_net - network confinement data
+ * @allow: basic network families permissions
+ * @audit: which network permissions to force audit
+ * @quiet: which network permissions to quiet rejects
+ */
+struct aa_net {
+        u16 allow[AF_MAX];
+        u16 audit[AF_MAX];
+        u16 quiet[AF_MAX];
+};
+
+
+extern struct aa_sfs_entry aa_sfs_entry_network[];
+
+void audit_net_cb(struct audit_buffer *ab, void *va);
+int aa_profile_af_perm(struct aa_profile *profile, struct common_audit_data *sa,
+                       u32 request, u16 family, int type);
+int aa_af_perm(struct aa_label *label, const char *op, u32 request, u16 family,
+               int type, int protocol);
+static inline int aa_profile_af_sk_perm(struct aa_profile *profile,
+                                        struct common_audit_data *sa,
+                                        u32 request,
+                                        struct sock *sk)
+{
+        return aa_profile_af_perm(profile, sa, request, sk->sk_family,
+                                  sk->sk_type);
+}
+int aa_sk_perm(const char *op, u32 request, struct sock *sk);
+
+int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request,
+                      struct socket *sock);
+
+
+static inline void aa_free_net_rules(struct aa_net *new)
+{
+        /* NOP */
+}
+
+#endif /* __AA_NET_H */