6 #include <netinet/in.h>
22 static const struct blobmsg_policy static_attrs[__OPT_MAX] = {
23 [OPT_IPADDR] = { .name = "ipaddr", .type = BLOBMSG_TYPE_ARRAY },
24 [OPT_IP6ADDR] = { .name = "ip6addr", .type = BLOBMSG_TYPE_ARRAY },
25 [OPT_NETMASK] = { .name = "netmask", .type = BLOBMSG_TYPE_STRING },
26 [OPT_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
27 [OPT_IP6GW] = { .name = "ip6gw", .type = BLOBMSG_TYPE_STRING },
30 static const union config_param_info static_attr_info[__OPT_MAX] = {
31 [OPT_IPADDR] = { .type = BLOBMSG_TYPE_STRING },
32 [OPT_IP6ADDR] = { .type = BLOBMSG_TYPE_STRING },
35 static const struct config_param_list static_attr_list = {
36 .n_params = __OPT_MAX,
37 .params = static_attrs,
38 .info = static_attr_info,
41 struct static_proto_state {
42 struct interface_proto_state proto;
44 struct blob_attr *config;
45 struct interface *iface;
49 split_netmask(char *str, unsigned int *netmask)
51 char *delim, *err = NULL;
53 delim = strchr(str, '/');
57 *netmask = strtoul(delim, &err, 10);
65 parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
67 char *astr = alloca(strlen(str) + 1);
70 if (!split_netmask(astr, netmask))
81 return inet_pton(af, str, addr);
85 parse_addr(struct static_proto_state *state, const char *str, bool v6, int mask)
87 struct device_addr *addr;
88 int af = v6 ? AF_INET6 : AF_INET;
90 addr = calloc(1, sizeof(*addr));
91 addr->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
94 if (!parse_ip_and_netmask(af, str, &addr->addr, &addr->mask)) {
95 interface_add_error(state->iface, "proto-static", "INVALID_ADDRESS", &str, 1);
99 interface_add_address(state->iface, addr);
104 parse_address_option(struct static_proto_state *state, struct blob_attr *attr, bool v6, int netmask)
106 struct blob_attr *cur;
110 blobmsg_for_each_attr(cur, attr, rem) {
112 if (!parse_addr(state, blobmsg_data(cur), v6, netmask))
120 parse_gateway_option(struct static_proto_state *state, struct blob_attr *attr, bool v6)
122 struct device_route *route;
123 const char *str = blobmsg_data(attr);
124 int af = v6 ? AF_INET6 : AF_INET;
126 route = calloc(1, sizeof(*route));
127 if (!inet_pton(af, str, &route->nexthop)) {
128 interface_add_error(state->iface, "proto-static",
129 "INVALID_GATEWAY", &str, 1);
134 route->flags = DEVADDR_DEVICE | (v6 ? DEVADDR_INET6 : DEVADDR_INET4);
135 interface_add_route(state->iface, route);
141 static_proto_setup(struct static_proto_state *state)
143 struct blob_attr *tb[__OPT_MAX];
147 int n_v4 = 0, n_v6 = 0;
149 blobmsg_parse(static_attrs, __OPT_MAX, tb, blob_data(state->config),
150 blob_len(state->config));
152 if (tb[OPT_NETMASK]) {
153 if (!inet_aton(blobmsg_data(tb[OPT_NETMASK]), &ina)) {
154 error = "INVALID_NETMASK";
158 netmask = 32 - fls(~(ntohl(ina.s_addr)));
162 n_v4 = parse_address_option(state, tb[OPT_IPADDR], false, netmask);
165 n_v6 = parse_address_option(state, tb[OPT_IP6ADDR], true, netmask);
167 if (!n_v4 && !n_v6) {
168 error = "NO_ADDRESS";
172 if (n_v4 < 0 || n_v6 < 0)
175 if (n_v4 && tb[OPT_GATEWAY]) {
176 if (!parse_gateway_option(state, tb[OPT_GATEWAY], false))
180 if (n_v6 && tb[OPT_IP6GW]) {
181 if (!parse_gateway_option(state, tb[OPT_IP6GW], true))
188 interface_add_error(state->iface, "proto-static", error, NULL, 0);
194 static_handler(struct interface_proto_state *proto,
195 enum interface_proto_cmd cmd, bool force)
197 struct static_proto_state *state;
200 state = container_of(proto, struct static_proto_state, proto);
203 case PROTO_CMD_SETUP:
204 if (static_proto_setup(state))
208 case PROTO_CMD_TEARDOWN:
209 interface_del_ctx_addr(state->iface, state);
216 static_free(struct interface_proto_state *proto)
218 struct static_proto_state *state;
220 state = container_of(proto, struct static_proto_state, proto);
225 struct interface_proto_state *
226 static_attach(const struct proto_handler *h, struct interface *iface,
227 struct blob_attr *attr)
229 struct static_proto_state *state;
231 state = calloc(1, sizeof(*state));
235 state->iface = iface;
236 state->config = malloc(blob_pad_len(attr));
240 memcpy(state->config, attr, blob_pad_len(attr));
241 state->proto.free = static_free;
242 state->proto.handler = static_handler;
243 state->proto.flags = PROTO_FLAG_IMMEDIATE;
245 return &state->proto;
252 static struct proto_handler static_proto = {
254 .config_params = &static_attr_list,
255 .attach = static_attach,
259 static_proto_init(void)
261 add_proto_handler(&static_proto);