Line data Source code
1 : /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2 :
3 : /***
4 : This file is part of systemd.
5 :
6 : Copyright 2014 Susant Sahani <susant@redhat.com>
7 :
8 : systemd is free software; you can redistribute it and/or modify it
9 : under the terms of the GNU Lesser General Public License as published by
10 : the Free Software Foundation; either version 2.1 of the License, or
11 : (at your option) any later version.
12 :
13 : systemd is distributed in the hope that it will be useful, but
14 : WITHOUT ANY WARRANTY; without even the implied warranty of
15 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 : Lesser General Public License for more details.
17 :
18 : You should have received a copy of the GNU Lesser General Public License
19 : along with systemd; If not, see <http://www.gnu.org/licenses/>.
20 : ***/
21 :
22 : #include <net/if.h>
23 :
24 : #include "sd-netlink.h"
25 : #include "networkd-netdev-vxlan.h"
26 : #include "networkd-link.h"
27 : #include "conf-parser.h"
28 : #include "missing.h"
29 :
30 0 : static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
31 0 : VxLan *v = VXLAN(netdev);
32 : int r;
33 :
34 0 : assert(netdev);
35 0 : assert(v);
36 0 : assert(link);
37 0 : assert(m);
38 :
39 :
40 0 : if (v->id <= VXLAN_VID_MAX) {
41 0 : r = sd_netlink_message_append_u32(m, IFLA_VXLAN_ID, v->id);
42 0 : if (r < 0)
43 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_ID attribute: %m");
44 : }
45 :
46 0 : r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_GROUP, &v->group.in);
47 0 : if (r < 0)
48 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GROUP attribute: %m");
49 :
50 0 : r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex);
51 0 : if (r < 0)
52 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LINK attribute: %m");
53 :
54 0 : if(v->ttl) {
55 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TTL, v->ttl);
56 0 : if (r < 0)
57 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TTL attribute: %m");
58 : }
59 :
60 0 : if(v->tos) {
61 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TOS, v->tos);
62 0 : if (r < 0)
63 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TOS attribute: %m");
64 : }
65 :
66 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_LEARNING, v->learning);
67 0 : if (r < 0)
68 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LEARNING attribute: %m");
69 :
70 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_RSC, v->route_short_circuit);
71 0 : if (r < 0)
72 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_RSC attribute: %m");
73 :
74 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_PROXY, v->arp_proxy);
75 0 : if (r < 0)
76 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PROXY attribute: %m");
77 :
78 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L2MISS, v->l2miss);
79 0 : if (r < 0)
80 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L2MISS attribute: %m");
81 :
82 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L3MISS, v->l3miss);
83 0 : if (r < 0)
84 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L3MISS attribute: %m");
85 :
86 0 : if(v->fdb_ageing) {
87 0 : r = sd_netlink_message_append_u32(m, IFLA_VXLAN_AGEING, v->fdb_ageing / USEC_PER_SEC);
88 0 : if (r < 0)
89 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_AGEING attribute: %m");
90 : }
91 :
92 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_CSUM, v->udpcsum);
93 0 : if (r < 0)
94 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_CSUM attribute: %m");
95 :
96 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, v->udp6zerocsumtx);
97 0 : if (r < 0)
98 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_TX attribute: %m");
99 :
100 0 : r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, v->udp6zerocsumrx);
101 0 : if (r < 0)
102 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_RX attribute: %m");
103 :
104 0 : return r;
105 : }
106 :
107 0 : int config_parse_vxlan_group_address(const char *unit,
108 : const char *filename,
109 : unsigned line,
110 : const char *section,
111 : unsigned section_line,
112 : const char *lvalue,
113 : int ltype,
114 : const char *rvalue,
115 : void *data,
116 : void *userdata) {
117 0 : VxLan *v = userdata;
118 0 : union in_addr_union *addr = data, buffer;
119 : int r, f;
120 :
121 0 : assert(filename);
122 0 : assert(lvalue);
123 0 : assert(rvalue);
124 0 : assert(data);
125 :
126 0 : r = in_addr_from_string_auto(rvalue, &f, &buffer);
127 0 : if (r < 0) {
128 0 : log_syntax(unit, LOG_ERR, filename, line, EINVAL,
129 : "vxlan multicast group address is invalid, ignoring assignment: %s", rvalue);
130 0 : return 0;
131 : }
132 :
133 0 : if(v->family != AF_UNSPEC && v->family != f) {
134 0 : log_syntax(unit, LOG_ERR, filename, line, EINVAL,
135 : "vxlan multicast group incompatible, ignoring assignment: %s", rvalue);
136 0 : return 0;
137 : }
138 :
139 0 : v->family = f;
140 0 : *addr = buffer;
141 :
142 0 : return 0;
143 : }
144 :
145 0 : static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
146 0 : VxLan *v = VXLAN(netdev);
147 :
148 0 : assert(netdev);
149 0 : assert(v);
150 0 : assert(filename);
151 :
152 0 : if (v->id > VXLAN_VID_MAX) {
153 0 : log_warning("VXLAN without valid Id configured in %s. Ignoring", filename);
154 0 : return -EINVAL;
155 : }
156 :
157 0 : return 0;
158 : }
159 :
160 0 : static void vxlan_init(NetDev *netdev) {
161 0 : VxLan *v = VXLAN(netdev);
162 :
163 0 : assert(netdev);
164 0 : assert(v);
165 :
166 0 : v->id = VXLAN_VID_MAX + 1;
167 0 : v->learning = true;
168 0 : v->udpcsum = false;
169 0 : v->udp6zerocsumtx = false;
170 0 : v->udp6zerocsumrx = false;
171 0 : }
172 :
173 : const NetDevVTable vxlan_vtable = {
174 : .object_size = sizeof(VxLan),
175 : .init = vxlan_init,
176 : .sections = "Match\0NetDev\0VXLAN\0",
177 : .fill_message_create = netdev_vxlan_fill_message_create,
178 : .create_type = NETDEV_CREATE_STACKED,
179 : .config_verify = netdev_vxlan_verify,
180 : };
|
