/* SPDX-License-Identifier: GPL-2.0-only *//* * AppArmor security module * * This file contains AppArmor network mediation definitions. * * Copyright (C) 1998-2008 Novell/SUSE * Copyright 2009-2017 Canonical Ltd. */ #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 __rcu *label;	struct aa_label __rcu *peer;	struct aa_label __rcu *peer_lastupdate;	/* ptr cmp only, no deref */}; static inline struct aa_sk_ctx *aa_sock(const struct sock *sk){	return sk->sk_security + apparmor_blob_sizes.lbs_sock;} #define DEFINE_AUDIT_NET(NAME, OP, CRED, 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, \						     AA_CLASS_NET,        \			  OP);						  \	NAME.common.u.net = &(NAME ## _net);				  \	NAME.subj_cred = (CRED);					  \	NAME.net.type = (T);						  \	NAME.net.protocol = (P) #define DEFINE_AUDIT_SK(NAME, OP, CRED, SK)				     \	DEFINE_AUDIT_NET(NAME, OP, CRED, SK, (SK)->sk_family, (SK)->sk_type, \			 (SK)->sk_protocol)  struct aa_secmark {	u8 audit;	u8 deny;	u32 secid;	char *label;}; extern struct aa_sfs_entry aa_sfs_entry_network[];extern struct aa_sfs_entry aa_sfs_entry_networkv9[]; int aa_do_perms(struct aa_profile *profile, struct aa_policydb *policy,		aa_state_t state, u32 request, struct aa_perms *p,		struct apparmor_audit_data *ad);/* passing in state returned by XXX_mediates_AF() */aa_state_t aa_match_to_prot(struct aa_policydb *policy, aa_state_t state,			    u32 request, u16 af, int type, int protocol,			    struct aa_perms **p, const char **info);void audit_net_cb(struct audit_buffer *ab, void *va);int aa_profile_af_perm(struct aa_profile *profile,		       struct apparmor_audit_data *ad,		       u32 request, u16 family, int type, int protocol);int aa_af_perm(const struct cred *subj_cred, 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 apparmor_audit_data *ad,					u32 request,					struct sock *sk){	return aa_profile_af_perm(profile, ad, request, sk->sk_family,				  sk->sk_type, sk->sk_protocol);}int aa_sk_perm(const char *op, u32 request, struct sock *sk); int aa_sock_file_perm(const struct cred *subj_cred, struct aa_label *label,		      const char *op, u32 request,		      struct file *file); int apparmor_secmark_check(struct aa_label *label, char *op, u32 request,			   u32 secid, const struct sock *sk); #endif /* __AA_NET_H */