1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * SELinux interface to the NetLabel subsystem
4  *
5  * Author: Paul Moore <paul@paul-moore.com>
6  */
7 
8 /*
9  * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
10  */
11 
12 #ifndef _SELINUX_NETLABEL_H_
13 #define _SELINUX_NETLABEL_H_
14 
15 #include <linux/types.h>
16 #include <linux/fs.h>
17 #include <linux/net.h>
18 #include <linux/skbuff.h>
19 #include <net/sock.h>
20 #include <net/request_sock.h>
21 #include <net/sctp/structs.h>
22 
23 #include "avc.h"
24 #include "objsec.h"
25 
26 #ifdef CONFIG_NETLABEL
27 void selinux_netlbl_cache_invalidate(void);
28 
29 void selinux_netlbl_err(struct sk_buff *skb, u16 family, int error,
30 			int gateway);
31 
32 void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec);
33 void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec);
34 
35 int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
36 				 u16 family,
37 				 u32 *type,
38 				 u32 *sid);
39 int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
40 				 u16 family,
41 				 u32 sid);
42 int selinux_netlbl_sctp_assoc_request(struct sctp_association *asoc,
43 				     struct sk_buff *skb);
44 int selinux_netlbl_inet_conn_request(struct request_sock *req, u16 family);
45 void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family);
46 void selinux_netlbl_sctp_sk_clone(struct sock *sk, struct sock *newsk);
47 int selinux_netlbl_socket_post_create(struct sock *sk, u16 family);
48 int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
49 				struct sk_buff *skb,
50 				u16 family,
51 				struct common_audit_data *ad);
52 int selinux_netlbl_socket_setsockopt(struct socket *sock,
53 				     int level,
54 				     int optname);
55 int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr);
56 int selinux_netlbl_socket_connect_locked(struct sock *sk,
57 					 struct sockaddr *addr);
58 
59 #else
selinux_netlbl_cache_invalidate(void)60 static inline void selinux_netlbl_cache_invalidate(void)
61 {
62 	return;
63 }
64 
selinux_netlbl_err(struct sk_buff * skb,u16 family,int error,int gateway)65 static inline void selinux_netlbl_err(struct sk_buff *skb,
66 				      u16 family,
67 				      int error,
68 				      int gateway)
69 {
70 	return;
71 }
72 
selinux_netlbl_sk_security_free(struct sk_security_struct * sksec)73 static inline void selinux_netlbl_sk_security_free(
74 					       struct sk_security_struct *sksec)
75 {
76 	return;
77 }
78 
selinux_netlbl_sk_security_reset(struct sk_security_struct * sksec)79 static inline void selinux_netlbl_sk_security_reset(
80 					       struct sk_security_struct *sksec)
81 {
82 	return;
83 }
84 
selinux_netlbl_skbuff_getsid(struct sk_buff * skb,u16 family,u32 * type,u32 * sid)85 static inline int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
86 					       u16 family,
87 					       u32 *type,
88 					       u32 *sid)
89 {
90 	*type = NETLBL_NLTYPE_NONE;
91 	*sid = SECSID_NULL;
92 	return 0;
93 }
selinux_netlbl_skbuff_setsid(struct sk_buff * skb,u16 family,u32 sid)94 static inline int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
95 					       u16 family,
96 					       u32 sid)
97 {
98 	return 0;
99 }
100 
selinux_netlbl_sctp_assoc_request(struct sctp_association * asoc,struct sk_buff * skb)101 static inline int selinux_netlbl_sctp_assoc_request(struct sctp_association *asoc,
102 						    struct sk_buff *skb)
103 {
104 	return 0;
105 }
selinux_netlbl_inet_conn_request(struct request_sock * req,u16 family)106 static inline int selinux_netlbl_inet_conn_request(struct request_sock *req,
107 						   u16 family)
108 {
109 	return 0;
110 }
selinux_netlbl_inet_csk_clone(struct sock * sk,u16 family)111 static inline void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family)
112 {
113 	return;
114 }
selinux_netlbl_sctp_sk_clone(struct sock * sk,struct sock * newsk)115 static inline void selinux_netlbl_sctp_sk_clone(struct sock *sk,
116 						struct sock *newsk)
117 {
118 	return;
119 }
selinux_netlbl_socket_post_create(struct sock * sk,u16 family)120 static inline int selinux_netlbl_socket_post_create(struct sock *sk,
121 						    u16 family)
122 {
123 	return 0;
124 }
selinux_netlbl_sock_rcv_skb(struct sk_security_struct * sksec,struct sk_buff * skb,u16 family,struct common_audit_data * ad)125 static inline int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
126 					      struct sk_buff *skb,
127 					      u16 family,
128 					      struct common_audit_data *ad)
129 {
130 	return 0;
131 }
selinux_netlbl_socket_setsockopt(struct socket * sock,int level,int optname)132 static inline int selinux_netlbl_socket_setsockopt(struct socket *sock,
133 						   int level,
134 						   int optname)
135 {
136 	return 0;
137 }
selinux_netlbl_socket_connect(struct sock * sk,struct sockaddr * addr)138 static inline int selinux_netlbl_socket_connect(struct sock *sk,
139 						struct sockaddr *addr)
140 {
141 	return 0;
142 }
selinux_netlbl_socket_connect_locked(struct sock * sk,struct sockaddr * addr)143 static inline int selinux_netlbl_socket_connect_locked(struct sock *sk,
144 						       struct sockaddr *addr)
145 {
146 	return 0;
147 }
148 #endif /* CONFIG_NETLABEL */
149 
150 #endif
151