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
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <inttypes.h>
#include <netinet/in.h>
#include <linux/genetlink.h>
#include <linux/if_arp.h>
#include "batadv.h"
#include "fileio.h"
#include "netlink-util.h"
#include "network-internal.h"
#include "networkd-manager.h"
#include "parse-util.h"
#include "stdio-util.h"
#include "string-table.h"
#include "string-util.h"
static void batadv_init(NetDev *n) {
BatmanAdvanced *b = BATADV(n);
/* Set defaults */
b->aggregation = true;
b->gateway_bandwidth_down = 10000;
b->gateway_bandwidth_up = 2000;
b->bridge_loop_avoidance = true;
b->distributed_arp_table = true;
b->fragmentation = true;
b->hop_penalty = 15;
b->originator_interval = 1000;
b->routing_algorithm = BATADV_ROUTING_ALGORITHM_BATMAN_V;
}
static const char* const batadv_gateway_mode_table[_BATADV_GATEWAY_MODE_MAX] = {
[BATADV_GATEWAY_MODE_OFF] = "off",
[BATADV_GATEWAY_MODE_CLIENT] = "client",
[BATADV_GATEWAY_MODE_SERVER] = "server",
};
static const char* const batadv_routing_algorithm_table[_BATADV_ROUTING_ALGORITHM_MAX] = {
[BATADV_ROUTING_ALGORITHM_BATMAN_V] = "batman-v",
[BATADV_ROUTING_ALGORITHM_BATMAN_IV] = "batman-iv",
};
static const char* const batadv_routing_algorithm_kernel_table[_BATADV_ROUTING_ALGORITHM_MAX] = {
[BATADV_ROUTING_ALGORITHM_BATMAN_V] = "BATMAN_V",
[BATADV_ROUTING_ALGORITHM_BATMAN_IV] = "BATMAN_IV",
};
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(batadv_gateway_mode, BatadvGatewayModes);
DEFINE_CONFIG_PARSE_ENUM(config_parse_batadv_gateway_mode, batadv_gateway_mode, BatadvGatewayModes,
"Failed to parse GatewayMode=");
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(batadv_routing_algorithm, BatadvRoutingAlgorithm);
DEFINE_CONFIG_PARSE_ENUM(config_parse_batadv_routing_algorithm, batadv_routing_algorithm, BatadvRoutingAlgorithm,
"Failed to parse RoutingAlgorithm=");
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(batadv_routing_algorithm_kernel, BatadvRoutingAlgorithm);
int config_parse_badadv_bandwidth (
const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
uint64_t k;
uint32_t *bandwidth = data;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
r = parse_size(rvalue, 1000, &k);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Failed to parse '%s=', ignoring assignment: %s",
lvalue, rvalue);
return 0;
}
if (k/1000/100 > UINT32_MAX)
log_syntax(unit, LOG_WARNING, filename, line, 0,
"The value of '%s=', is outside of 0...429496729500000 range: %s",
lvalue, rvalue);
*bandwidth = k/1000/100;
return 0;
}
/* callback for batman netdev's parameter set */
static int netdev_batman_set_handler(sd_netlink *rtnl, sd_netlink_message *m, NetDev *netdev) {
int r;
assert(netdev);
assert(m);
r = sd_netlink_message_get_errno(m);
if (r < 0) {
log_netdev_warning_errno(netdev, r, "BATADV parameters could not be set: %m");
return 1;
}
log_netdev_debug(netdev, "BATADV parameters set success");
return 1;
}
static int netdev_batadv_post_create_message(NetDev *netdev, sd_netlink_message *message) {
BatmanAdvanced *b = BATADV(netdev);
int r;
r = sd_netlink_message_append_u32(message, BATADV_ATTR_MESH_IFINDEX, netdev->ifindex);
if (r < 0)
return r;
r = sd_netlink_message_append_u8(message, BATADV_ATTR_GW_MODE, b->gateway_mode);
if (r < 0)
return r;
r = sd_netlink_message_append_u8(message, BATADV_ATTR_AGGREGATED_OGMS_ENABLED, b->aggregation);
if (r < 0)
return r;
r = sd_netlink_message_append_u8(message, BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED, b->bridge_loop_avoidance);
if (r < 0)
return r;
r = sd_netlink_message_append_u8(message, BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED, b->distributed_arp_table);
if (r < 0)
return r;
r = sd_netlink_message_append_u8(message, BATADV_ATTR_FRAGMENTATION_ENABLED, b->fragmentation);
if (r < 0)
return r;
r = sd_netlink_message_append_u8(message, BATADV_ATTR_HOP_PENALTY, b->hop_penalty);
if (r < 0)
return r;
r = sd_netlink_message_append_u32(message, BATADV_ATTR_ORIG_INTERVAL, DIV_ROUND_UP(b->originator_interval, USEC_PER_MSEC));
if (r < 0)
return r;
r = sd_netlink_message_append_u32(message, BATADV_ATTR_GW_BANDWIDTH_DOWN, b->gateway_bandwidth_down);
if (r < 0)
return r;
r = sd_netlink_message_append_u32(message, BATADV_ATTR_GW_BANDWIDTH_UP, b->gateway_bandwidth_up);
if (r < 0)
return r;
return 0;
}
static int netdev_batadv_post_create(NetDev *netdev, Link *link) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL;
int r;
assert(netdev);
r = sd_genl_message_new(netdev->manager->genl, BATADV_NL_NAME, BATADV_CMD_SET_MESH, &message);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not allocate netlink message: %m");
r = netdev_batadv_post_create_message(netdev, message);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not create netlink message: %m");
r = netlink_call_async(netdev->manager->genl, NULL, message, netdev_batman_set_handler,
netdev_destroy_callback, netdev);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not send netlink message: %m");
netdev_ref(netdev);
return r;
}
static int netdev_batadv_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
assert(m);
BatmanAdvanced *b = BATADV(netdev);
int r;
r = sd_netlink_message_append_string(m, IFLA_BATADV_ALGO_NAME, batadv_routing_algorithm_kernel_to_string(b->routing_algorithm));
if (r < 0)
return r;
return 0;
}
const NetDevVTable batadv_vtable = {
.object_size = sizeof(BatmanAdvanced),
.init = batadv_init,
.sections = NETDEV_COMMON_SECTIONS "BatmanAdvanced\0",
.fill_message_create = netdev_batadv_fill_message_create,
.post_create = netdev_batadv_post_create,
.create_type = NETDEV_CREATE_INDEPENDENT,
.iftype = ARPHRD_ETHER,
.generate_mac = true,
};
|
