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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 | /* init.c */ /* * Copyright (c) 2017 Intel Corporation. * * SPDX-License-Identifier: Apache-2.0 */ #include <logging/log.h> LOG_MODULE_REGISTER(net_config, CONFIG_NET_CONFIG_LOG_LEVEL); #include <zephyr.h> #include <init.h> #include <string.h> #include <errno.h> #include <stdlib.h> #include <logging/log_backend.h> #include <net/net_core.h> #include <net/net_ip.h> #include <net/net_if.h> #include <net/dhcpv4.h> #include <net/net_mgmt.h> #include <net/dns_resolve.h> #include <net/net_config.h> #include "ieee802154_settings.h" #include "bt_settings.h" extern const struct log_backend *log_backend_net_get(void); extern int net_init_clock_via_sntp(void); static K_SEM_DEFINE(waiter, 0, 1); static struct k_sem counter; #if defined(CONFIG_NET_DHCPV4) && defined(CONFIG_NET_NATIVE_IPV4) static struct net_mgmt_event_callback mgmt4_cb; static void ipv4_addr_add_handler(struct net_mgmt_event_callback *cb, u32_t mgmt_event, struct net_if *iface) { #if CONFIG_NET_CONFIG_LOG_LEVEL >= LOG_LEVEL_INF char hr_addr[NET_IPV4_ADDR_LEN]; #endif int i; if (mgmt_event != NET_EVENT_IPV4_ADDR_ADD) { return; } for (i = 0; i < NET_IF_MAX_IPV4_ADDR; i++) { struct net_if_addr *if_addr = &iface->config.ip.ipv4->unicast[i]; if (if_addr->addr_type != NET_ADDR_DHCP || !if_addr->is_used) { continue; } #if CONFIG_NET_CONFIG_LOG_LEVEL >= LOG_LEVEL_INF NET_INFO("IPv4 address: %s", log_strdup(net_addr_ntop(AF_INET, &if_addr->address.in_addr, hr_addr, sizeof(hr_addr)))); NET_INFO("Lease time: %u seconds", iface->config.dhcpv4.lease_time); NET_INFO("Subnet: %s", log_strdup(net_addr_ntop(AF_INET, &iface->config.ip.ipv4->netmask, hr_addr, sizeof(hr_addr)))); NET_INFO("Router: %s", log_strdup(net_addr_ntop(AF_INET, &iface->config.ip.ipv4->gw, hr_addr, sizeof(hr_addr)))); #endif break; } k_sem_take(&counter, K_NO_WAIT); k_sem_give(&waiter); } static void setup_dhcpv4(struct net_if *iface) { NET_INFO("Running dhcpv4 client..."); net_mgmt_init_event_callback(&mgmt4_cb, ipv4_addr_add_handler, NET_EVENT_IPV4_ADDR_ADD); net_mgmt_add_event_callback(&mgmt4_cb); net_dhcpv4_start(iface); } #else #define setup_dhcpv4(...) #endif /* CONFIG_NET_DHCPV4 */ #if defined(CONFIG_NET_NATIVE_IPV4) && !defined(CONFIG_NET_DHCPV4) && \ !defined(CONFIG_NET_CONFIG_MY_IPV4_ADDR) #error "You need to define an IPv4 address or enable DHCPv4!" #endif #if defined(CONFIG_NET_NATIVE_IPV4) && defined(CONFIG_NET_CONFIG_MY_IPV4_ADDR) static void setup_ipv4(struct net_if *iface) { #if CONFIG_NET_CONFIG_LOG_LEVEL >= LOG_LEVEL_INF char hr_addr[NET_IPV4_ADDR_LEN]; #endif struct in_addr addr; if (sizeof(CONFIG_NET_CONFIG_MY_IPV4_ADDR) == 1) { /* Empty address, skip setting ANY address in this case */ return; } if (net_addr_pton(AF_INET, CONFIG_NET_CONFIG_MY_IPV4_ADDR, &addr)) { NET_ERR("Invalid address: %s", CONFIG_NET_CONFIG_MY_IPV4_ADDR); return; } #if defined(CONFIG_NET_DHCPV4) /* In case DHCP is enabled, make the static address tentative, * to allow DHCP address to override it. This covers a usecase * of "there should be a static IP address for DHCP-less setups", * but DHCP should override it (to use it, NET_IF_MAX_IPV4_ADDR * should be set to 1). There is another usecase: "there should * always be static IP address, and optionally, DHCP address". * For that to work, NET_IF_MAX_IPV4_ADDR should be 2 (or more). * (In this case, an app will need to bind to the needed addr * explicitly.) */ net_if_ipv4_addr_add(iface, &addr, NET_ADDR_OVERRIDABLE, 0); #else net_if_ipv4_addr_add(iface, &addr, NET_ADDR_MANUAL, 0); #endif #if CONFIG_NET_CONFIG_LOG_LEVEL >= LOG_LEVEL_INF NET_INFO("IPv4 address: %s", log_strdup(net_addr_ntop(AF_INET, &addr, hr_addr, sizeof(hr_addr)))); #endif if (sizeof(CONFIG_NET_CONFIG_MY_IPV4_NETMASK) > 1) { /* If not empty */ if (net_addr_pton(AF_INET, CONFIG_NET_CONFIG_MY_IPV4_NETMASK, &addr)) { NET_ERR("Invalid netmask: %s", CONFIG_NET_CONFIG_MY_IPV4_NETMASK); } else { net_if_ipv4_set_netmask(iface, &addr); } } if (sizeof(CONFIG_NET_CONFIG_MY_IPV4_GW) > 1) { /* If not empty */ if (net_addr_pton(AF_INET, CONFIG_NET_CONFIG_MY_IPV4_GW, &addr)) { NET_ERR("Invalid gateway: %s", CONFIG_NET_CONFIG_MY_IPV4_GW); } else { net_if_ipv4_set_gw(iface, &addr); } } k_sem_take(&counter, K_NO_WAIT); k_sem_give(&waiter); } #else #define setup_ipv4(...) #endif /* CONFIG_NET_IPV4 && !CONFIG_NET_DHCPV4 */ #if defined(CONFIG_NET_NATIVE_IPV6) #if !defined(CONFIG_NET_CONFIG_MY_IPV6_ADDR) #error "You need to define an IPv6 address!" #endif static struct net_mgmt_event_callback mgmt6_cb; static struct in6_addr laddr; static void ipv6_event_handler(struct net_mgmt_event_callback *cb, u32_t mgmt_event, struct net_if *iface) { struct net_if_ipv6 *ipv6 = iface->config.ip.ipv6; int i; if (!ipv6) { return; } if (mgmt_event == NET_EVENT_IPV6_ADDR_ADD) { /* save the last added IP address for this interface */ for (i = NET_IF_MAX_IPV6_ADDR - 1; i >= 0; i--) { if (ipv6->unicast[i].is_used) { memcpy(&laddr, &ipv6->unicast[i].address.in6_addr, sizeof(laddr)); } } } if (mgmt_event == NET_EVENT_IPV6_DAD_SUCCEED) { #if CONFIG_NET_CONFIG_LOG_LEVEL >= LOG_LEVEL_INF char hr_addr[NET_IPV6_ADDR_LEN]; #endif struct net_if_addr *ifaddr; ifaddr = net_if_ipv6_addr_lookup(&laddr, &iface); if (!ifaddr || !(net_ipv6_addr_cmp(&ifaddr->address.in6_addr, &laddr) && ifaddr->addr_state == NET_ADDR_PREFERRED)) { /* Address is not yet properly setup */ return; } #if CONFIG_NET_CONFIG_LOG_LEVEL >= LOG_LEVEL_INF NET_INFO("IPv6 address: %s", log_strdup(net_addr_ntop(AF_INET6, &laddr, hr_addr, NET_IPV6_ADDR_LEN))); #endif k_sem_take(&counter, K_NO_WAIT); k_sem_give(&waiter); } if (mgmt_event == NET_EVENT_IPV6_ROUTER_ADD) { k_sem_take(&counter, K_NO_WAIT); k_sem_give(&waiter); } } static void setup_ipv6(struct net_if *iface, u32_t flags) { struct net_if_addr *ifaddr; u32_t mask = NET_EVENT_IPV6_DAD_SUCCEED; if (sizeof(CONFIG_NET_CONFIG_MY_IPV6_ADDR) == 1) { /* Empty address, skip setting ANY address in this case */ return; } if (net_addr_pton(AF_INET6, CONFIG_NET_CONFIG_MY_IPV6_ADDR, &laddr)) { NET_ERR("Invalid address: %s", CONFIG_NET_CONFIG_MY_IPV6_ADDR); /* some interfaces may add IP address later */ mask |= NET_EVENT_IPV6_ADDR_ADD; } if (flags & NET_CONFIG_NEED_ROUTER) { mask |= NET_EVENT_IPV6_ROUTER_ADD; } net_mgmt_init_event_callback(&mgmt6_cb, ipv6_event_handler, mask); net_mgmt_add_event_callback(&mgmt6_cb); /* * check for CMD_ADDR_ADD bit here, NET_EVENT_IPV6_ADDR_ADD is * a combination of _NET_EVENT_IPV6_BASE | NET_EVENT_IPV6_CMD_ADDR_ADD * so it will always return != NET_EVENT_IPV6_CMD_ADDR_ADD if any other * event is set (for instance NET_EVENT_IPV6_ROUTER_ADD) */ if ((mask & NET_EVENT_IPV6_CMD_ADDR_ADD) == NET_EVENT_IPV6_CMD_ADDR_ADD) { ifaddr = net_if_ipv6_addr_add(iface, &laddr, NET_ADDR_MANUAL, 0); if (!ifaddr) { NET_ERR("Cannot add %s to interface", CONFIG_NET_CONFIG_MY_IPV6_ADDR); } } #if !defined(CONFIG_NET_IPV6_DAD) k_sem_take(&counter, K_NO_WAIT); k_sem_give(&waiter); #endif return; } #else #define setup_ipv6(...) #endif /* CONFIG_NET_IPV6 */ int net_config_init(const char *app_info, u32_t flags, s32_t timeout) { #define LOOP_DIVIDER 10 struct net_if *iface = net_if_get_default(); int loop = timeout / LOOP_DIVIDER; int count = 0; if (app_info) { NET_INFO("%s", log_strdup(app_info)); } if (!iface) { NET_ERR("No network interfaces"); return -ENODEV; } if (flags & NET_CONFIG_NEED_IPV6) { count++; } if (flags & NET_CONFIG_NEED_IPV4) { count++; } k_sem_init(&counter, count, UINT_MAX); setup_ipv4(iface); setup_dhcpv4(iface); setup_ipv6(iface, flags); if (timeout < 0) { count = -1; } else if (timeout == 0) { count = 0; } else { count = timeout / 1000 + 1; } /* Loop here until we are ready to continue. As we might need * to wait multiple events, sleep smaller amounts of data. */ while (count--) { if (k_sem_take(&waiter, loop)) { if (!k_sem_count_get(&counter)) { break; } } } if (!count && timeout) { NET_ERR("Timeout while waiting setup"); return -ETIMEDOUT; } return 0; } #if defined(CONFIG_NET_CONFIG_AUTO_INIT) static int init_app(struct device *device) { u32_t flags = 0U; int ret; ARG_UNUSED(device); #if defined(CONFIG_NET_IPV6) /* IEEE 802.15.4 is only usable if IPv6 is enabled */ ret = z_net_config_ieee802154_setup(); if (ret < 0) { NET_ERR("Cannot setup IEEE 802.15.4 interface (%d)", ret); } ret = z_net_config_bt_setup(); if (ret < 0) { NET_ERR("Cannot setup Bluetooth interface (%d)", ret); } #endif if (IS_ENABLED(CONFIG_NET_CONFIG_NEED_IPV6)) { flags |= NET_CONFIG_NEED_IPV6; } if (IS_ENABLED(CONFIG_NET_CONFIG_NEED_IPV6_ROUTER)) { flags |= NET_CONFIG_NEED_ROUTER; } if (IS_ENABLED(CONFIG_NET_CONFIG_NEED_IPV4)) { flags |= NET_CONFIG_NEED_IPV4; } /* Initialize the application automatically if needed */ ret = net_config_init("Initializing network", flags, K_SECONDS(CONFIG_NET_CONFIG_INIT_TIMEOUT)); if (ret < 0) { NET_ERR("Network initialization failed (%d)", ret); } if (IS_ENABLED(CONFIG_NET_CONFIG_CLOCK_SNTP_INIT)) { net_init_clock_via_sntp(); } /* This is activated late as it requires the network stack to be up * and running before syslog messages can be sent to network. */ if (IS_ENABLED(CONFIG_LOG_BACKEND_NET)) { const struct log_backend *backend = log_backend_net_get(); if (!log_backend_is_active(backend)) { log_backend_activate(backend, NULL); } } return ret; } SYS_INIT(init_app, APPLICATION, CONFIG_NET_CONFIG_INIT_PRIO); #endif /* CONFIG_NET_CONFIG_AUTO_INIT */ |