124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/*
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* AppArmor security module
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*
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* This file contains AppArmor network mediation definitions.
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*
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* Copyright (C) 1998-2008 Novell/SUSE
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* Copyright 2009-2014 Canonical Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2 of the
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* License.
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*/
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#ifndef __AA_NET_H
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#define __AA_NET_H
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#include <net/sock.h>
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#include <linux/path.h>
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#include "apparmorfs.h"
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#include "label.h"
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#include "perms.h"
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#include "policy.h"
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#define AA_MAY_SEND AA_MAY_WRITE
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#define AA_MAY_RECEIVE AA_MAY_READ
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#define AA_MAY_SHUTDOWN AA_MAY_DELETE
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#define AA_MAY_CONNECT AA_MAY_OPEN
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#define AA_MAY_ACCEPT 0x00100000
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#define AA_MAY_BIND 0x00200000
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#define AA_MAY_LISTEN 0x00400000
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#define AA_MAY_SETOPT 0x01000000
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#define AA_MAY_GETOPT 0x02000000
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#define NET_PERMS_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE | \
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AA_MAY_SHUTDOWN | AA_MAY_BIND | AA_MAY_LISTEN | \
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AA_MAY_CONNECT | AA_MAY_ACCEPT | AA_MAY_SETATTR | \
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AA_MAY_GETATTR | AA_MAY_SETOPT | AA_MAY_GETOPT)
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#define NET_FS_PERMS (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE | \
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AA_MAY_SHUTDOWN | AA_MAY_CONNECT | AA_MAY_RENAME |\
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AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_CHMOD | \
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AA_MAY_CHOWN | AA_MAY_CHGRP | AA_MAY_LOCK | \
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AA_MAY_MPROT)
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#define NET_PEER_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CONNECT | \
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AA_MAY_ACCEPT)
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struct aa_sk_ctx {
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struct aa_label *label;
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struct aa_label *peer;
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struct path path;
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};
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#define SK_CTX(X) (X)->sk_security
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#define SOCK_ctx(X) SOCK_INODE(X)->i_security
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#define DEFINE_AUDIT_NET(NAME, OP, SK, F, T, P) \
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struct lsm_network_audit NAME ## _net = { .sk = (SK), \
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.family = (F)}; \
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DEFINE_AUDIT_DATA(NAME, \
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((SK) && (F) != AF_UNIX) ? LSM_AUDIT_DATA_NET : \
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LSM_AUDIT_DATA_NONE, \
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OP); \
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NAME.u.net = &(NAME ## _net); \
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aad(&NAME)->net.type = (T); \
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aad(&NAME)->net.protocol = (P)
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#define DEFINE_AUDIT_SK(NAME, OP, SK) \
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DEFINE_AUDIT_NET(NAME, OP, SK, (SK)->sk_family, (SK)->sk_type, \
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(SK)->sk_protocol)
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/* struct aa_net - network confinement data
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* @allowed: basic network families permissions
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* @audit_network: which network permissions to force audit
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* @quiet_network: which network permissions to quiet rejects
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*/
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struct aa_net {
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u16 allow[AF_MAX];
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u16 audit[AF_MAX];
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u16 quiet[AF_MAX];
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};
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extern struct aa_fs_entry aa_fs_entry_network[];
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void audit_net_cb(struct audit_buffer *ab, void *va);
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int aa_profile_af_perm(struct aa_profile *profile, struct common_audit_data *sa,
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u32 request, u16 family, int type);
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static inline int aa_profile_af_sk_perm(struct aa_profile *profile,
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struct common_audit_data *sa,
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u32 request,
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struct sock *sk)
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{
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return aa_profile_af_perm(profile, sa, request, sk->sk_family,
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sk->sk_type);
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}
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int aa_sock_perm(const char *op, u32 request, struct socket *sock);
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int aa_sock_create_perm(struct aa_label *label, int family, int type,
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int protocol);
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int aa_sock_bind_perm(struct socket *sock, struct sockaddr *address,
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int addrlen);
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int aa_sock_connect_perm(struct socket *sock, struct sockaddr *address,
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int addrlen);
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int aa_sock_listen_perm(struct socket *sock, int backlog);
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int aa_sock_accept_perm(struct socket *sock, struct socket *newsock);
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int aa_sock_msg_perm(const char *op, u32 request, struct socket *sock,
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struct msghdr *msg, int size);
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int aa_sock_opt_perm(const char *op, u32 request, struct socket *sock, int level,
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int optname);
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int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request,
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struct socket *sock);
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static inline void aa_free_net_rules(struct aa_net *new)
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{
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/* NOP */
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}
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#endif /* __AA_NET_H */
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