libnl 3.5.0

exp.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * src/lib/exp.c CLI Expectation Helpers
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation version 2.1
8 * of the License.
9 *
10 * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
11 * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
12 */
13
14 /**
15 * @ingroup cli
16 * @defgroup cli_exp Expectation Tracking
17 *
18 * @{
19 */
20
21 #include <netlink/cli/utils.h>
22 #include <netlink/cli/exp.h>
23
24 struct nfnl_exp *nl_cli_exp_alloc(void)
25 {
26 struct nfnl_exp *exp;
27
28 exp = nfnl_exp_alloc();
29 if (!exp)
30 nl_cli_fatal(ENOMEM, "Unable to allocate expectation object");
31
32 return exp;
33 }
34
35 struct nl_cache *nl_cli_exp_alloc_cache(struct nl_sock *sk)
36 {
37 return nl_cli_alloc_cache(sk, "expectation", nfnl_exp_alloc_cache);
38 }
39
40 void nl_cli_exp_parse_family(struct nfnl_exp *exp, char *arg)
41 {
42 int family;
43
44 if ((family = nl_str2af(arg)) == AF_UNSPEC)
45 nl_cli_fatal(EINVAL,
46 "Unable to nl_cli_exp_parse family \"%s\": %s",
47 arg, nl_geterror(NLE_INVAL));
48
49 nfnl_exp_set_family(exp, family);
50 }
51
52 void nl_cli_exp_parse_timeout(struct nfnl_exp *exp, char *arg)
53 {
54 uint32_t timeout = nl_cli_parse_u32(arg);
55 nfnl_exp_set_timeout(exp, timeout);
56 }
57
58 void nl_cli_exp_parse_id(struct nfnl_exp *exp, char *arg)
59 {
60 uint32_t id = nl_cli_parse_u32(arg);
61 nfnl_exp_set_id(exp, id);
62 }
63
64 void nl_cli_exp_parse_helper_name(struct nfnl_exp *exp, char *arg)
65 {
66 nfnl_exp_set_helper_name(exp, arg);
67 }
68
69 void nl_cli_exp_parse_zone(struct nfnl_exp *exp, char *arg)
70 {
71 uint32_t zone = nl_cli_parse_u32(arg);
72 nfnl_exp_set_zone(exp, zone);
73 }
74
75 void nl_cli_exp_parse_flags(struct nfnl_exp *exp, char *arg)
76 {
77 uint32_t flags = nl_cli_parse_u32(arg);
78 nfnl_exp_set_flags(exp, flags);
79 }
80
81 void nl_cli_exp_parse_class(struct nfnl_exp *exp, char *arg)
82 {
83 uint32_t class = nl_cli_parse_u32(arg);
84 nfnl_exp_set_class(exp, class);
85 }
86
87 void nl_cli_exp_parse_nat_dir(struct nfnl_exp *exp, char *arg)
88 {
89 uint32_t nat_dir = nl_cli_parse_u32(arg);
90 nfnl_exp_set_nat_dir(exp, nat_dir);
91 }
92
93 void nl_cli_exp_parse_fn(struct nfnl_exp *exp, char *arg)
94 {
95 nfnl_exp_set_fn(exp, arg);
96 }
97
98 void nl_cli_exp_parse_src(struct nfnl_exp *exp, int tuple, char *arg)
99 {
100 int err;
101 struct nl_addr *a = nl_cli_addr_parse(arg, nfnl_exp_get_family(exp));
102 if ((err = nfnl_exp_set_src(exp, tuple, a)) < 0)
103 nl_cli_fatal(err, "Unable to set source address: %s",
104 nl_geterror(err));
105 }
106
107 void nl_cli_exp_parse_dst(struct nfnl_exp *exp, int tuple, char *arg)
108 {
109 int err;
110 struct nl_addr *a = nl_cli_addr_parse(arg, nfnl_exp_get_family(exp));
111 if ((err = nfnl_exp_set_dst(exp, tuple, a)) < 0)
112 nl_cli_fatal(err, "Unable to set destination address: %s",
113 nl_geterror(err));
114 }
115
116 void nl_cli_exp_parse_l4protonum(struct nfnl_exp *exp, int tuple, char *arg)
117 {
118 int l4protonum;
119
120 if ((l4protonum = nl_str2ip_proto(arg)) < 0)
121 nl_cli_fatal(l4protonum,
122 "Unable to nl_cli_exp_parse protocol \"%s\": %s",
123 arg, nl_geterror(l4protonum));
124
125 nfnl_exp_set_l4protonum(exp, tuple, l4protonum);
126 }
127
128 void nl_cli_exp_parse_src_port(struct nfnl_exp *exp, int tuple, char *arg)
129 {
130 uint32_t sport = nl_cli_parse_u32(arg);
131 uint16_t dport = nfnl_exp_get_dst_port(exp, tuple);
132 nfnl_exp_set_ports(exp, tuple, sport, dport);
133 }
134
135 void nl_cli_exp_parse_dst_port(struct nfnl_exp *exp, int tuple, char *arg)
136 {
137 uint32_t dport = nl_cli_parse_u32(arg);
138 uint16_t sport = nfnl_exp_get_src_port(exp, tuple);
139 nfnl_exp_set_ports(exp, tuple, sport, dport);
140 }
141
142 void nl_cli_exp_parse_icmp_id(struct nfnl_exp *exp, int tuple, char *arg)
143 {
144 uint32_t id = nl_cli_parse_u32(arg);
145 uint8_t type = nfnl_exp_get_icmp_type(exp, tuple);
146 uint8_t code = nfnl_exp_get_icmp_code(exp, tuple);
147 nfnl_exp_set_icmp(exp, tuple, id, type, code);
148 }
149
150 void nl_cli_exp_parse_icmp_type(struct nfnl_exp *exp, int tuple, char *arg)
151 {
152 uint32_t type = nl_cli_parse_u32(arg);
153 uint16_t id = nfnl_exp_get_icmp_id(exp, tuple);
154 uint8_t code = nfnl_exp_get_icmp_code(exp, tuple);
155 nfnl_exp_set_icmp(exp, tuple, id, type, code);
156 }
157
158 void nl_cli_exp_parse_icmp_code(struct nfnl_exp *exp, int tuple, char *arg)
159 {
160 uint32_t code = nl_cli_parse_u32(arg);
161 uint16_t id = nfnl_exp_get_icmp_id(exp, tuple);
162 uint8_t type = nfnl_exp_get_icmp_type(exp, tuple);
163 nfnl_exp_set_icmp(exp, tuple, id, type, code);
164 }
165
166 /** @} */
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:583
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:43
nl_cli_fatal
void nl_cli_fatal(int err, const char *fmt,...)
Print error message and quit application.
Definition: utils.c:78