libnl 3.5.0

exp.h
1 /*
2 * netlink/netfilter/exp.h Conntrack Expectation
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation version 2.1
7 * of the License.
8 *
9 * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
10 * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
11 * Copyright (c) 2007 Secure Computing Corporation
12 * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
13 */
14
15 #ifndef NETLINK_EXP_H_
16 #define NETLINK_EXP_H_
17
18 #include <netlink/netlink.h>
19 #include <netlink/addr.h>
20 #include <netlink/cache.h>
21 #include <netlink/msg.h>
22
23 #include <linux/version.h>
24
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
28
29 struct nfnl_exp;
30
31 enum nfnl_exp_tuples {
32 NFNL_EXP_TUPLE_EXPECT,
33 NFNL_EXP_TUPLE_MASTER,
34 NFNL_EXP_TUPLE_MASK,
35 NFNL_EXP_TUPLE_NAT,
36 NFNL_EXP_TUPLE_MAX
37 };
38
39 extern struct nl_object_ops exp_obj_ops;
40
41 extern struct nfnl_exp * nfnl_exp_alloc(void);
42 extern int nfnl_exp_alloc_cache(struct nl_sock *, struct nl_cache **);
43
44 extern int nfnlmsg_exp_group(struct nlmsghdr *);
45 extern int nfnlmsg_exp_parse(struct nlmsghdr *, struct nfnl_exp **);
46
47 extern void nfnl_exp_get(struct nfnl_exp *);
48 extern void nfnl_exp_put(struct nfnl_exp *);
49
50 extern int nfnl_exp_dump_request(struct nl_sock *);
51
52 extern int nfnl_exp_build_add_request(const struct nfnl_exp *, int,
53 struct nl_msg **);
54 extern int nfnl_exp_add(struct nl_sock *, const struct nfnl_exp *, int);
55
56 extern int nfnl_exp_build_delete_request(const struct nfnl_exp *, int,
57 struct nl_msg **);
58 extern int nfnl_exp_del(struct nl_sock *, const struct nfnl_exp *, int);
59
60 extern int nfnl_exp_build_query_request(const struct nfnl_exp *, int,
61 struct nl_msg **);
62 extern int nfnl_exp_query(struct nl_sock *, const struct nfnl_exp *, int);
63
64 extern void nfnl_exp_set_family(struct nfnl_exp *, uint8_t);
65 extern uint8_t nfnl_exp_get_family(const struct nfnl_exp *);
66
67 extern void nfnl_exp_set_timeout(struct nfnl_exp *, uint32_t);
68 extern int nfnl_exp_test_timeout(const struct nfnl_exp *);
69 extern uint32_t nfnl_exp_get_timeout(const struct nfnl_exp *);
70
71 extern void nfnl_exp_set_id(struct nfnl_exp *, uint32_t);
72 extern int nfnl_exp_test_id(const struct nfnl_exp *);
73 extern uint32_t nfnl_exp_get_id(const struct nfnl_exp *);
74
75 extern int nfnl_exp_set_helper_name(struct nfnl_exp *, void *);
76 extern int nfnl_exp_test_helper_name(const struct nfnl_exp *);
77 extern const char * nfnl_exp_get_helper_name(const struct nfnl_exp *);
78
79 extern void nfnl_exp_set_zone(struct nfnl_exp *, uint16_t);
80 extern int nfnl_exp_test_zone(const struct nfnl_exp *);
81 extern uint16_t nfnl_exp_get_zone(const struct nfnl_exp *);
82
83 extern void nfnl_exp_set_flags(struct nfnl_exp *, uint32_t);
84 extern int nfnl_exp_test_flags(const struct nfnl_exp *);
85 extern void nfnl_exp_unset_flags(struct nfnl_exp *exp, uint32_t flags);
86 extern uint32_t nfnl_exp_get_flags(const struct nfnl_exp *);
87 extern char * nfnl_exp_flags2str(int flags, char *buf, size_t len);
88 int nfnl_exp_str2flags(const char *name);
89
90 extern void nfnl_exp_set_class(struct nfnl_exp *, uint32_t);
91 extern int nfnl_exp_test_class(const struct nfnl_exp *);
92 extern uint32_t nfnl_exp_get_class(const struct nfnl_exp *);
93
94 extern int nfnl_exp_set_fn(struct nfnl_exp *, void *);
95 extern int nfnl_exp_test_fn(const struct nfnl_exp *);
96 extern const char * nfnl_exp_get_fn(const struct nfnl_exp *);
97
98 extern void nfnl_exp_set_nat_dir(struct nfnl_exp *, uint8_t);
99 extern int nfnl_exp_test_nat_dir(const struct nfnl_exp *);
100 extern uint8_t nfnl_exp_get_nat_dir(const struct nfnl_exp *);
101
102 // The int argument specifies which nfnl_exp_dir (expect, master, mask or nat)
103 // Expectation objects only use orig, not reply
104
105 extern int nfnl_exp_set_src(struct nfnl_exp *, int, struct nl_addr *);
106 extern int nfnl_exp_test_src(const struct nfnl_exp *, int);
107 extern struct nl_addr * nfnl_exp_get_src(const struct nfnl_exp *, int);
108
109 extern int nfnl_exp_set_dst(struct nfnl_exp *, int, struct nl_addr *);
110 extern int nfnl_exp_test_dst(const struct nfnl_exp *, int);
111 extern struct nl_addr * nfnl_exp_get_dst(const struct nfnl_exp *, int);
112
113 extern void nfnl_exp_set_l4protonum(struct nfnl_exp *, int, uint8_t);
114 extern int nfnl_exp_test_l4protonum(const struct nfnl_exp *, int);
115 extern uint8_t nfnl_exp_get_l4protonum(const struct nfnl_exp *, int);
116
117 extern void nfnl_exp_set_ports(struct nfnl_exp *, int, uint16_t, uint16_t);
118 extern int nfnl_exp_test_ports(const struct nfnl_exp *, int);
119 extern uint16_t nfnl_exp_get_src_port(const struct nfnl_exp *, int);
120 extern uint16_t nfnl_exp_get_dst_port(const struct nfnl_exp *, int);
121
122 extern void nfnl_exp_set_icmp(struct nfnl_exp *, int, uint16_t, uint8_t, uint8_t);
123 extern int nfnl_exp_test_icmp(const struct nfnl_exp *, int);
124 extern uint16_t nfnl_exp_get_icmp_id(const struct nfnl_exp *, int);
125 extern uint8_t nfnl_exp_get_icmp_type(const struct nfnl_exp *, int);
126 extern uint8_t nfnl_exp_get_icmp_code(const struct nfnl_exp *, int);
127
128 #ifdef __cplusplus
129 }
130 #endif
131
132 #endif
nfnl_exp_dump_request
int nfnl_exp_dump_request(struct nl_sock *)
Send nfnl exp dump request.
Definition: exp.c:316
nfnl_exp_alloc_cache
int nfnl_exp_alloc_cache(struct nl_sock *, struct nl_cache **)
Build a expectation cache holding all expectations currently in the kernel.
Definition: exp.c:583