libnl: /data/src/libnl3/src/lib/exp.c Source File

libnl 3.10.0

exp.c
1/* SPDX-License-Identifier: LGPL-2.1-only */
2/*
3 * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
4 * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
5 */
6
7/**
8 * @ingroup cli
9 * @defgroup cli_exp Expectation Tracking
10 *
11 * @{
12 */
13
14#include "nl-default.h"
15
16#include <netlink/cli/utils.h>
17#include <netlink/cli/exp.h>
18
19struct nfnl_exp *nl_cli_exp_alloc(void)
20{
21 struct nfnl_exp *exp;
22
23 exp = nfnl_exp_alloc();
24 if (!exp)
25 nl_cli_fatal(ENOMEM, "Unable to allocate expectation object");
26
27 return exp;
28}
29
30struct nl_cache *nl_cli_exp_alloc_cache(struct nl_sock *sk)
31{
32 return nl_cli_alloc_cache(sk, "expectation", nfnl_exp_alloc_cache);
33}
34
35void nl_cli_exp_parse_family(struct nfnl_exp *exp, char *arg)
36{
37 int family;
38
39 if ((family = nl_str2af(arg)) == AF_UNSPEC)
40 nl_cli_fatal(EINVAL,
41 "Unable to nl_cli_exp_parse family \"%s\": %s",
42 arg, nl_geterror(NLE_INVAL));
43
44 nfnl_exp_set_family(exp, family);
45}
46
47void nl_cli_exp_parse_timeout(struct nfnl_exp *exp, char *arg)
48{
49 uint32_t timeout = nl_cli_parse_u32(arg);
50 nfnl_exp_set_timeout(exp, timeout);
51}
52
53void nl_cli_exp_parse_id(struct nfnl_exp *exp, char *arg)
54{
55 uint32_t id = nl_cli_parse_u32(arg);
56 nfnl_exp_set_id(exp, id);
57}
58
59void nl_cli_exp_parse_helper_name(struct nfnl_exp *exp, char *arg)
60{
61 nfnl_exp_set_helper_name(exp, arg);
62}
63
64void nl_cli_exp_parse_zone(struct nfnl_exp *exp, char *arg)
65{
66 uint32_t zone = nl_cli_parse_u32(arg);
67 nfnl_exp_set_zone(exp, zone);
68}
69
70void nl_cli_exp_parse_flags(struct nfnl_exp *exp, char *arg)
71{
72 uint32_t flags = nl_cli_parse_u32(arg);
73 nfnl_exp_set_flags(exp, flags);
74}
75
76void nl_cli_exp_parse_class(struct nfnl_exp *exp, char *arg)
77{
78 uint32_t class = nl_cli_parse_u32(arg);
79 nfnl_exp_set_class(exp, class);
80}
81
82void nl_cli_exp_parse_nat_dir(struct nfnl_exp *exp, char *arg)
83{
84 uint32_t nat_dir = nl_cli_parse_u32(arg);
85 nfnl_exp_set_nat_dir(exp, nat_dir);
86}
87
88void nl_cli_exp_parse_fn(struct nfnl_exp *exp, char *arg)
89{
90 nfnl_exp_set_fn(exp, arg);
91}
92
93void nl_cli_exp_parse_src(struct nfnl_exp *exp, int tuple, char *arg)
94{
95 int err;
96 struct nl_addr *a = nl_cli_addr_parse(arg, nfnl_exp_get_family(exp));
97 if ((err = nfnl_exp_set_src(exp, tuple, a)) < 0)
98 nl_cli_fatal(err, "Unable to set source address: %s",
99 nl_geterror(err));
100}
101
102void nl_cli_exp_parse_dst(struct nfnl_exp *exp, int tuple, char *arg)
103{
104 int err;
105 struct nl_addr *a = nl_cli_addr_parse(arg, nfnl_exp_get_family(exp));
106 if ((err = nfnl_exp_set_dst(exp, tuple, a)) < 0)
107 nl_cli_fatal(err, "Unable to set destination address: %s",
108 nl_geterror(err));
109}
110
111void nl_cli_exp_parse_l4protonum(struct nfnl_exp *exp, int tuple, char *arg)
112{
113 int l4protonum;
114
115 if ((l4protonum = nl_str2ip_proto(arg)) < 0)
116 nl_cli_fatal(l4protonum,
117 "Unable to nl_cli_exp_parse protocol \"%s\": %s",
118 arg, nl_geterror(l4protonum));
119
120 nfnl_exp_set_l4protonum(exp, tuple, l4protonum);
121}
122
123void nl_cli_exp_parse_src_port(struct nfnl_exp *exp, int tuple, char *arg)
124{
125 uint32_t sport = nl_cli_parse_u32(arg);
126 uint16_t dport = nfnl_exp_get_dst_port(exp, tuple);
127 nfnl_exp_set_ports(exp, tuple, sport, dport);
128}
129
130void nl_cli_exp_parse_dst_port(struct nfnl_exp *exp, int tuple, char *arg)
131{
132 uint32_t dport = nl_cli_parse_u32(arg);
133 uint16_t sport = nfnl_exp_get_src_port(exp, tuple);
134 nfnl_exp_set_ports(exp, tuple, sport, dport);
135}
136
137void nl_cli_exp_parse_icmp_id(struct nfnl_exp *exp, int tuple, char *arg)
138{
139 uint32_t id = nl_cli_parse_u32(arg);
140 uint8_t type = nfnl_exp_get_icmp_type(exp, tuple);
141 uint8_t code = nfnl_exp_get_icmp_code(exp, tuple);
142 nfnl_exp_set_icmp(exp, tuple, id, type, code);
143}
144
145void nl_cli_exp_parse_icmp_type(struct nfnl_exp *exp, int tuple, char *arg)
146{
147 uint32_t type = nl_cli_parse_u32(arg);
148 uint16_t id = nfnl_exp_get_icmp_id(exp, tuple);
149 uint8_t code = nfnl_exp_get_icmp_code(exp, tuple);
150 nfnl_exp_set_icmp(exp, tuple, id, type, code);
151}
152
153void nl_cli_exp_parse_icmp_code(struct nfnl_exp *exp, int tuple, char *arg)
154{
155 uint32_t code = nl_cli_parse_u32(arg);
156 uint16_t id = nfnl_exp_get_icmp_id(exp, tuple);
157 uint8_t type = nfnl_exp_get_icmp_type(exp, tuple);
158 nfnl_exp_set_icmp(exp, tuple, id, type, code);
159}
160
161/** @} */
nl_cli_fatal
void nl_cli_fatal(int err, const char *fmt,...)
Print error message and quit application.
Definition utils.c:71
nl_cli_parse_u32
uint32_t nl_cli_parse_u32(const char *arg)
Parse a text based 32 bit unsigned integer argument.
Definition utils.c:36
nfnl_exp_alloc_cache
int nfnl_exp_alloc_cache(struct nl_sock *sk, struct nl_cache **result)
Build a expectation cache holding all expectations currently in the kernel.
Definition exp.c:580
nfnl_exp
Definition nl-netfilter.h:85