1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/* SPDX-License-Identifier: LGPL-2.1-only */
/*
* Copyright (c) 2013 Cong Wang <xiyou.wangcong@gmail.com>
*/
/**
* @ingroup act
* @defgroup act_mirred Mirror and Redirect
*
* @{
*/
#include <netlink-private/netlink.h>
#include <netlink-private/tc.h>
#include <netlink/netlink.h>
#include <netlink/attr.h>
#include <netlink/utils.h>
#include <netlink-private/route/tc-api.h>
#include <netlink/route/act/mirred.h>
static struct nla_policy mirred_policy[TCA_MIRRED_MAX + 1] = {
[TCA_MIRRED_PARMS] = { .minlen = sizeof(struct tc_mirred) },
};
static int mirred_msg_parser(struct rtnl_tc *tc, void *data)
{
struct rtnl_mirred *u = data;
struct nlattr *tb[TCA_MIRRED_MAX + 1];
int err;
err = tca_parse(tb, TCA_MIRRED_MAX, tc, mirred_policy);
if (err < 0)
return err;
if (!tb[TCA_MIRRED_PARMS])
return -NLE_MISSING_ATTR;
nla_memcpy(&u->m_parm, tb[TCA_MIRRED_PARMS], sizeof(u->m_parm));
return 0;
}
static void mirred_free_data(struct rtnl_tc *tc, void *data)
{
}
static void mirred_dump_line(struct rtnl_tc *tc, void *data,
struct nl_dump_params *p)
{
struct rtnl_mirred *u = data;
if (!u)
return;
nl_dump(p, " index %u", u->m_parm.ifindex);
if (u->m_parm.eaction == TCA_EGRESS_MIRROR)
nl_dump(p, " egress mirror");
else if (u->m_parm.eaction == TCA_EGRESS_REDIR)
nl_dump(p, " egress redirect");
switch(u->m_parm.action) {
case TC_ACT_UNSPEC:
nl_dump(p, " unspecified");
break;
case TC_ACT_PIPE:
nl_dump(p, " pipe");
break;
case TC_ACT_STOLEN:
nl_dump(p, " stolen");
break;
case TC_ACT_SHOT:
nl_dump(p, " shot");
break;
case TC_ACT_QUEUED:
nl_dump(p, " queued");
break;
case TC_ACT_REPEAT:
nl_dump(p, " repeat");
break;
}
}
static void mirred_dump_details(struct rtnl_tc *tc, void *data,
struct nl_dump_params *p)
{
}
static void mirred_dump_stats(struct rtnl_tc *tc, void *data,
struct nl_dump_params *p)
{
struct rtnl_mirred *u = data;
if (!u)
return;
/* TODO */
}
static int mirred_msg_fill(struct rtnl_tc *tc, void *data, struct nl_msg *msg)
{
struct rtnl_mirred *u = data;
if (!u)
return 0;
NLA_PUT(msg, TCA_MIRRED_PARMS, sizeof(u->m_parm), &u->m_parm);
return 0;
nla_put_failure:
return -NLE_NOMEM;
}
/**
* @name Attribute Modifications
* @{
*/
int rtnl_mirred_set_action(struct rtnl_act *act, int action)
{
struct rtnl_mirred *u;
if (!(u = (struct rtnl_mirred *) rtnl_tc_data(TC_CAST(act))))
return -NLE_NOMEM;
if (action > TCA_INGRESS_MIRROR || action < TCA_EGRESS_REDIR)
return -NLE_INVAL;
switch (action) {
case TCA_EGRESS_MIRROR:
case TCA_EGRESS_REDIR:
u->m_parm.eaction = action;
break;
case TCA_INGRESS_REDIR:
case TCA_INGRESS_MIRROR:
default:
return NLE_OPNOTSUPP;
}
return 0;
}
int rtnl_mirred_get_action(struct rtnl_act *act)
{
struct rtnl_mirred *u;
if (!(u = (struct rtnl_mirred *) rtnl_tc_data(TC_CAST(act))))
return -NLE_NOMEM;
return u->m_parm.eaction;
}
int rtnl_mirred_set_ifindex(struct rtnl_act *act, uint32_t ifindex)
{
struct rtnl_mirred *u;
if (!(u = (struct rtnl_mirred *) rtnl_tc_data(TC_CAST(act))))
return -NLE_NOMEM;
u->m_parm.ifindex = ifindex;
return 0;
}
uint32_t rtnl_mirred_get_ifindex(struct rtnl_act *act)
{
struct rtnl_mirred *u;
if ((u = (struct rtnl_mirred *) rtnl_tc_data(TC_CAST(act))))
return u->m_parm.ifindex;
return 0;
}
int rtnl_mirred_set_policy(struct rtnl_act *act, int policy)
{
struct rtnl_mirred *u;
if (!(u = (struct rtnl_mirred *) rtnl_tc_data(TC_CAST(act))))
return -NLE_NOMEM;
u->m_parm.action = policy;
return 0;
}
int rtnl_mirred_get_policy(struct rtnl_act *act)
{
struct rtnl_mirred *u;
if (!(u = (struct rtnl_mirred *) rtnl_tc_data(TC_CAST(act))))
return -NLE_NOMEM;
return u->m_parm.action;
}
/** @} */
static struct rtnl_tc_ops mirred_ops = {
.to_kind = "mirred",
.to_type = RTNL_TC_TYPE_ACT,
.to_size = sizeof(struct rtnl_mirred),
.to_msg_parser = mirred_msg_parser,
.to_free_data = mirred_free_data,
.to_clone = NULL,
.to_msg_fill = mirred_msg_fill,
.to_dump = {
[NL_DUMP_LINE] = mirred_dump_line,
[NL_DUMP_DETAILS] = mirred_dump_details,
[NL_DUMP_STATS] = mirred_dump_stats,
},
};
static void __init mirred_init(void)
{
rtnl_tc_register(&mirred_ops);
}
static void __exit mirred_exit(void)
{
rtnl_tc_unregister(&mirred_ops);
}
/** @} */
|
