1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * Copyright (c) 2016 Sushma Sitaram <[email protected]>
4 */
5
6 /**
7 * @ingroup act
8 * @defgroup act_gact GACT Editing
9 *
10 * @{
11 */
12
13 #include "nl-default.h"
14
15 #include <netlink/netlink.h>
16 #include <netlink/attr.h>
17 #include <netlink/utils.h>
18 #include <netlink/route/act/gact.h>
19
20 #include "tc-api.h"
21
22 struct rtnl_gact {
23 struct tc_gact g_parm;
24 };
25
26 static struct nla_policy gact_policy[TCA_GACT_MAX + 1] = {
27 [TCA_GACT_PARMS] = { .minlen = sizeof(struct tc_gact) },
28 };
29
gact_msg_parser(struct rtnl_tc * tc,void * data)30 static int gact_msg_parser(struct rtnl_tc *tc, void *data)
31 {
32 struct rtnl_gact *u = data;
33 struct nlattr *tb[TCA_GACT_MAX + 1];
34 int err;
35
36 err = tca_parse(tb, TCA_GACT_MAX, tc, gact_policy);
37 if (err < 0)
38 return err;
39
40 if (!tb[TCA_GACT_PARMS])
41 return -NLE_MISSING_ATTR;
42
43 nla_memcpy(&u->g_parm, tb[TCA_GACT_PARMS], sizeof(u->g_parm));
44
45 return 0;
46 }
47
gact_free_data(struct rtnl_tc * tc,void * data)48 static void gact_free_data(struct rtnl_tc *tc, void *data)
49 {
50 }
51
gact_dump_line(struct rtnl_tc * tc,void * data,struct nl_dump_params * p)52 static void gact_dump_line(struct rtnl_tc *tc, void *data,
53 struct nl_dump_params *p)
54 {
55 struct rtnl_gact *u = data;
56
57 if (!u)
58 return;
59
60 switch(u->g_parm.action){
61 case TC_ACT_UNSPEC:
62 nl_dump(p, " continue");
63 break;
64 case TC_ACT_SHOT:
65 nl_dump(p, " drop");
66 break;
67 case TC_ACT_RECLASSIFY:
68 nl_dump(p, " reclassify");
69 break;
70 case TC_ACT_OK:
71 nl_dump(p, " pass");
72 break;
73 }
74
75 }
76
gact_dump_details(struct rtnl_tc * tc,void * data,struct nl_dump_params * p)77 static void gact_dump_details(struct rtnl_tc *tc, void *data,
78 struct nl_dump_params *p)
79 {
80 }
81
gact_dump_stats(struct rtnl_tc * tc,void * data,struct nl_dump_params * p)82 static void gact_dump_stats(struct rtnl_tc *tc, void *data,
83 struct nl_dump_params *p)
84 {
85 struct rtnl_gact *u = data;
86
87 if (!u)
88 return;
89 /* TODO */
90 }
91
92
gact_msg_fill(struct rtnl_tc * tc,void * data,struct nl_msg * msg)93 static int gact_msg_fill(struct rtnl_tc *tc, void *data, struct nl_msg *msg)
94 {
95 struct rtnl_gact *u = data;
96
97 if (!u)
98 return 0;
99
100 NLA_PUT(msg, TCA_GACT_PARMS, sizeof(u->g_parm), &u->g_parm);
101
102 return 0;
103
104 nla_put_failure:
105 return -NLE_NOMEM;
106 }
107
108 /**
109 * @name Attribute Modifications
110 * @{
111 */
112
rtnl_gact_set_action(struct rtnl_act * act,int action)113 int rtnl_gact_set_action(struct rtnl_act *act, int action)
114 {
115 struct rtnl_gact *u;
116
117 if (!(u = (struct rtnl_gact *) rtnl_tc_data(TC_CAST(act))))
118 return -NLE_NOMEM;
119
120 u->g_parm.action = action;
121
122 return 0;
123 }
124
rtnl_gact_get_action(struct rtnl_act * act)125 int rtnl_gact_get_action(struct rtnl_act *act)
126 {
127 struct rtnl_gact *u;
128
129 if (!(u = (struct rtnl_gact *) rtnl_tc_data(TC_CAST(act))))
130 return -NLE_NOMEM;
131 return u->g_parm.action;
132 }
133
134
135 /** @} */
136
137 static struct rtnl_tc_ops gact_ops = {
138 .to_kind = "gact",
139 .to_type = RTNL_TC_TYPE_ACT,
140 .to_size = sizeof(struct rtnl_gact),
141 .to_msg_parser = gact_msg_parser,
142 .to_free_data = gact_free_data,
143 .to_clone = NULL,
144 .to_msg_fill = gact_msg_fill,
145 .to_dump = {
146 [NL_DUMP_LINE] = gact_dump_line,
147 [NL_DUMP_DETAILS] = gact_dump_details,
148 [NL_DUMP_STATS] = gact_dump_stats,
149 },
150 };
151
gact_init(void)152 static void _nl_init gact_init(void)
153 {
154 rtnl_tc_register(&gact_ops);
155 }
156
gact_exit(void)157 static void _nl_exit gact_exit(void)
158 {
159 rtnl_tc_unregister(&gact_ops);
160 }
161
162 /** @} */
163