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326cb406 SS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
ea84fd5c | 6 | Copyright 2014 Susant Sahani |
326cb406 SS |
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 | ||
326cb406 SS |
22 | #include <net/if.h> |
23 | ||
1c4baffc | 24 | #include "sd-netlink.h" |
3be1d7e0 | 25 | #include "networkd-netdev-vxlan.h" |
0b1831c2 | 26 | #include "networkd-link.h" |
85a8eeee | 27 | #include "conf-parser.h" |
81577dc2 | 28 | #include "missing.h" |
326cb406 | 29 | |
1c4baffc | 30 | static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { |
aa9f1140 | 31 | VxLan *v = VXLAN(netdev); |
326cb406 SS |
32 | int r; |
33 | ||
3be1d7e0 | 34 | assert(netdev); |
aa9f1140 | 35 | assert(v); |
326cb406 | 36 | assert(link); |
326cb406 SS |
37 | assert(m); |
38 | ||
326cb406 | 39 | |
aa9f1140 | 40 | if (v->id <= VXLAN_VID_MAX) { |
1c4baffc | 41 | r = sd_netlink_message_append_u32(m, IFLA_VXLAN_ID, v->id); |
f545680e SS |
42 | if (r < 0) |
43 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_ID attribute: %m"); | |
326cb406 SS |
44 | } |
45 | ||
1c4baffc | 46 | r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_GROUP, &v->group.in); |
f545680e SS |
47 | if (r < 0) |
48 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GROUP attribute: %m"); | |
326cb406 | 49 | |
1c4baffc | 50 | r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex); |
f545680e SS |
51 | if (r < 0) |
52 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LINK attribute: %m"); | |
326cb406 | 53 | |
aa9f1140 | 54 | if(v->ttl) { |
1c4baffc | 55 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TTL, v->ttl); |
f545680e SS |
56 | if (r < 0) |
57 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TTL attribute: %m"); | |
326cb406 SS |
58 | } |
59 | ||
aa9f1140 | 60 | if(v->tos) { |
1c4baffc | 61 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TOS, v->tos); |
f545680e SS |
62 | if (r < 0) |
63 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TOS attribute: %m"); | |
326cb406 SS |
64 | } |
65 | ||
1c4baffc | 66 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_LEARNING, v->learning); |
f545680e SS |
67 | if (r < 0) |
68 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LEARNING attribute: %m"); | |
326cb406 | 69 | |
1c4baffc | 70 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_RSC, v->route_short_circuit); |
f545680e SS |
71 | if (r < 0) |
72 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_RSC attribute: %m"); | |
85a8eeee | 73 | |
1c4baffc | 74 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_PROXY, v->arp_proxy); |
f545680e SS |
75 | if (r < 0) |
76 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PROXY attribute: %m"); | |
85a8eeee | 77 | |
1c4baffc | 78 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L2MISS, v->l2miss); |
f545680e SS |
79 | if (r < 0) |
80 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L2MISS attribute: %m"); | |
85a8eeee | 81 | |
1c4baffc | 82 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L3MISS, v->l3miss); |
f545680e SS |
83 | if (r < 0) |
84 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L3MISS attribute: %m"); | |
85a8eeee SS |
85 | |
86 | if(v->fdb_ageing) { | |
1c4baffc | 87 | r = sd_netlink_message_append_u32(m, IFLA_VXLAN_AGEING, v->fdb_ageing / USEC_PER_SEC); |
f545680e SS |
88 | if (r < 0) |
89 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_AGEING attribute: %m"); | |
85a8eeee SS |
90 | } |
91 | ||
1c4baffc | 92 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_CSUM, v->udpcsum); |
f545680e SS |
93 | if (r < 0) |
94 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_CSUM attribute: %m"); | |
cffacc74 | 95 | |
1c4baffc | 96 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, v->udp6zerocsumtx); |
f545680e SS |
97 | if (r < 0) |
98 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_TX attribute: %m"); | |
cffacc74 | 99 | |
1c4baffc | 100 | r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, v->udp6zerocsumrx); |
f545680e SS |
101 | if (r < 0) |
102 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_RX attribute: %m"); | |
cffacc74 | 103 | |
ea84fd5c SS |
104 | if (v->group_policy) { |
105 | r = sd_netlink_message_append_flag(m, IFLA_VXLAN_GBP); | |
106 | if (r < 0) | |
107 | return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GBP attribute: %m"); | |
108 | } | |
109 | ||
326cb406 SS |
110 | return r; |
111 | } | |
112 | ||
85a8eeee SS |
113 | int config_parse_vxlan_group_address(const char *unit, |
114 | const char *filename, | |
115 | unsigned line, | |
116 | const char *section, | |
117 | unsigned section_line, | |
118 | const char *lvalue, | |
119 | int ltype, | |
120 | const char *rvalue, | |
121 | void *data, | |
122 | void *userdata) { | |
123 | VxLan *v = userdata; | |
124 | union in_addr_union *addr = data, buffer; | |
125 | int r, f; | |
126 | ||
127 | assert(filename); | |
128 | assert(lvalue); | |
129 | assert(rvalue); | |
130 | assert(data); | |
131 | ||
132 | r = in_addr_from_string_auto(rvalue, &f, &buffer); | |
133 | if (r < 0) { | |
134 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
135 | "vxlan multicast group address is invalid, ignoring assignment: %s", rvalue); | |
136 | return 0; | |
137 | } | |
138 | ||
139 | if(v->family != AF_UNSPEC && v->family != f) { | |
140 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
141 | "vxlan multicast group incompatible, ignoring assignment: %s", rvalue); | |
142 | return 0; | |
143 | } | |
144 | ||
145 | v->family = f; | |
146 | *addr = buffer; | |
147 | ||
148 | return 0; | |
149 | } | |
150 | ||
3be1d7e0 | 151 | static int netdev_vxlan_verify(NetDev *netdev, const char *filename) { |
aa9f1140 TG |
152 | VxLan *v = VXLAN(netdev); |
153 | ||
326cb406 | 154 | assert(netdev); |
aa9f1140 | 155 | assert(v); |
3be1d7e0 | 156 | assert(filename); |
326cb406 | 157 | |
aa9f1140 | 158 | if (v->id > VXLAN_VID_MAX) { |
3be1d7e0 TG |
159 | log_warning("VXLAN without valid Id configured in %s. Ignoring", filename); |
160 | return -EINVAL; | |
326cb406 SS |
161 | } |
162 | ||
326cb406 SS |
163 | return 0; |
164 | } | |
3be1d7e0 | 165 | |
aa9f1140 TG |
166 | static void vxlan_init(NetDev *netdev) { |
167 | VxLan *v = VXLAN(netdev); | |
168 | ||
169 | assert(netdev); | |
170 | assert(v); | |
171 | ||
172 | v->id = VXLAN_VID_MAX + 1; | |
173 | v->learning = true; | |
cffacc74 SS |
174 | v->udpcsum = false; |
175 | v->udp6zerocsumtx = false; | |
176 | v->udp6zerocsumrx = false; | |
aa9f1140 TG |
177 | } |
178 | ||
3be1d7e0 | 179 | const NetDevVTable vxlan_vtable = { |
aa9f1140 TG |
180 | .object_size = sizeof(VxLan), |
181 | .init = vxlan_init, | |
182 | .sections = "Match\0NetDev\0VXLAN\0", | |
183 | .fill_message_create = netdev_vxlan_fill_message_create, | |
184 | .create_type = NETDEV_CREATE_STACKED, | |
3be1d7e0 TG |
185 | .config_verify = netdev_vxlan_verify, |
186 | }; |