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
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* iplink_rmnet.c RMNET device support
*
* Authors: Daniele Palmas <dnlplm@gmail.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "utils.h"
#include "ip_common.h"
static void print_explain(FILE *f)
{
fprintf(f,
"Usage: ... rmnet mux_id MUXID\n"
" [ ingress-deaggregation { on | off } ]\n"
" [ ingress-commands { on | off } ]\n"
" [ ingress-mapv4-checksum { on | off } ]\n"
" [ egress-mapv4-checksum { on | off } ]\n"
" [ ingress-mapv5-checksum { on | off } ]\n"
" [ egress-mapv5-checksum { on | off } ]\n"
"\n"
"MUXID := 1-254\n"
);
}
static void explain(void)
{
print_explain(stderr);
}
static int rmnet_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
struct ifla_rmnet_flags flags = { 0 };
__u16 mux_id;
int ret;
while (argc > 0) {
if (strcmp(*argv, "mux_id") == 0) {
NEXT_ARG();
if (get_u16(&mux_id, *argv, 0))
invarg("mux_id is invalid", *argv);
addattr16(n, 1024, IFLA_RMNET_MUX_ID, mux_id);
} else if (strcmp(*argv, "ingress-deaggregation") == 0) {
bool deaggregation;
NEXT_ARG();
deaggregation = parse_on_off("ingress-deaggregation", *argv, &ret);
if (ret)
return ret;
flags.mask |= RMNET_FLAGS_INGRESS_DEAGGREGATION;
if (deaggregation)
flags.flags |= RMNET_FLAGS_INGRESS_DEAGGREGATION;
else
flags.flags &= ~RMNET_FLAGS_INGRESS_DEAGGREGATION;
} else if (strcmp(*argv, "ingress-commands") == 0) {
bool commands;
NEXT_ARG();
commands = parse_on_off("ingress-commands", *argv, &ret);
if (ret)
return ret;
flags.mask |= RMNET_FLAGS_INGRESS_MAP_COMMANDS;
if (commands)
flags.flags |= RMNET_FLAGS_INGRESS_MAP_COMMANDS;
else
flags.flags &= ~RMNET_FLAGS_INGRESS_MAP_COMMANDS;
} else if (strcmp(*argv, "ingress-mapv4-checksum") == 0) {
bool mapv4_checksum;
NEXT_ARG();
mapv4_checksum = parse_on_off("ingress-mapv4-checksum", *argv, &ret);
if (ret)
return ret;
flags.mask |= RMNET_FLAGS_INGRESS_MAP_CKSUMV4;
if (mapv4_checksum)
flags.flags |= RMNET_FLAGS_INGRESS_MAP_CKSUMV4;
else
flags.flags &= ~RMNET_FLAGS_INGRESS_MAP_CKSUMV4;
} else if (strcmp(*argv, "egress-mapv4-checksum") == 0) {
bool mapv4_checksum;
NEXT_ARG();
mapv4_checksum = parse_on_off("egress-mapv4-checksum", *argv, &ret);
if (ret)
return ret;
flags.mask |= RMNET_FLAGS_EGRESS_MAP_CKSUMV4;
if (mapv4_checksum)
flags.flags |= RMNET_FLAGS_EGRESS_MAP_CKSUMV4;
else
flags.flags &= ~RMNET_FLAGS_EGRESS_MAP_CKSUMV4;
} else if (strcmp(*argv, "ingress-mapv5-checksum") == 0) {
bool mapv5_checksum;
NEXT_ARG();
mapv5_checksum = parse_on_off("ingress-mapv5-checksum", *argv, &ret);
if (ret)
return ret;
flags.mask |= RMNET_FLAGS_INGRESS_MAP_CKSUMV5;
if (mapv5_checksum)
flags.flags |= RMNET_FLAGS_INGRESS_MAP_CKSUMV5;
else
flags.flags &= ~RMNET_FLAGS_INGRESS_MAP_CKSUMV5;
} else if (strcmp(*argv, "egress-mapv5-checksum") == 0) {
bool mapv5_checksum;
NEXT_ARG();
mapv5_checksum = parse_on_off("egress-mapv5-checksum", *argv, &ret);
if (ret)
return ret;
flags.mask |= RMNET_FLAGS_EGRESS_MAP_CKSUMV5;
if (mapv5_checksum)
flags.flags |= RMNET_FLAGS_EGRESS_MAP_CKSUMV5;
else
flags.flags &= ~RMNET_FLAGS_EGRESS_MAP_CKSUMV5;
} else if (strcmp(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "rmnet: unknown command \"%s\"?\n", *argv);
explain();
return -1;
}
argc--, argv++;
}
if (flags.mask)
addattr_l(n, 1024, IFLA_RMNET_FLAGS, &flags, sizeof(flags));
return 0;
}
static void rmnet_print_flags(FILE *fp, __u32 flags)
{
open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<");
#define _PF(f) if (flags & RMNET_FLAGS_##f) { \
flags &= ~RMNET_FLAGS_##f; \
print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); \
}
_PF(INGRESS_DEAGGREGATION);
_PF(INGRESS_MAP_COMMANDS);
_PF(INGRESS_MAP_CKSUMV4);
_PF(EGRESS_MAP_CKSUMV4);
_PF(INGRESS_MAP_CKSUMV5);
_PF(EGRESS_MAP_CKSUMV5);
#undef _PF
if (flags)
print_hex(PRINT_ANY, NULL, "%x", flags);
close_json_array(PRINT_ANY, "> ");
}
static void rmnet_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
struct ifla_rmnet_flags *flags;
if (!tb)
return;
if (!tb[IFLA_RMNET_MUX_ID] ||
RTA_PAYLOAD(tb[IFLA_RMNET_MUX_ID]) < sizeof(__u16))
return;
print_uint(PRINT_ANY,
"mux_id",
"mux_id %u ",
rta_getattr_u16(tb[IFLA_RMNET_MUX_ID]));
if (tb[IFLA_RMNET_FLAGS]) {
if (RTA_PAYLOAD(tb[IFLA_RMNET_FLAGS]) < sizeof(*flags))
return;
flags = RTA_DATA(tb[IFLA_RMNET_FLAGS]);
rmnet_print_flags(f, flags->flags);
}
}
static void rmnet_print_help(struct link_util *lu, int argc, char **argv,
FILE *f)
{
print_explain(f);
}
struct link_util rmnet_link_util = {
.id = "rmnet",
.maxattr = IFLA_RMNET_MAX,
.parse_opt = rmnet_parse_opt,
.print_opt = rmnet_print_opt,
.print_help = rmnet_print_help,
};
|
