Ratan Gupta | 82549cc | 2017-04-21 08:45:23 +0530 | [diff] [blame] | 1 | #pragma once |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 2 | #include <fmt/core.h> |
William A. Kennington III | 0d7ce48 | 2019-01-30 17:14:23 -0800 | [diff] [blame] | 3 | #include <netinet/in.h> |
Ratan Gupta | 3681a50 | 2017-06-17 19:20:04 +0530 | [diff] [blame] | 4 | |
William A. Kennington III | b7d6a1a | 2023-06-17 02:00:53 -0700 | [diff] [blame^] | 5 | #include <stdplus/net/addr/ether.hpp> |
| 6 | |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 7 | #include <algorithm> |
| 8 | #include <array> |
William A. Kennington III | 71de63a | 2022-11-08 10:50:54 -0800 | [diff] [blame] | 9 | #include <numeric> |
William A. Kennington III | de70ccf | 2022-11-20 17:18:01 -0800 | [diff] [blame] | 10 | #include <optional> |
Patrick Venture | 189d44e | 2018-07-09 12:30:59 -0700 | [diff] [blame] | 11 | #include <string> |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 12 | #include <string_view> |
| 13 | #include <type_traits> |
William A. Kennington III | dd9ef81 | 2022-10-05 02:08:02 -0700 | [diff] [blame] | 14 | #include <unordered_map> |
Willy Tu | f7dce2e | 2022-10-07 05:48:08 +0000 | [diff] [blame] | 15 | #include <unordered_set> |
William A. Kennington III | 0d7ce48 | 2019-01-30 17:14:23 -0800 | [diff] [blame] | 16 | #include <variant> |
Ratan Gupta | 0f9dc1b | 2017-09-03 17:57:50 +0530 | [diff] [blame] | 17 | |
William A. Kennington III | 454a0de | 2022-11-12 01:01:04 -0800 | [diff] [blame] | 18 | constexpr bool operator==(in_addr lhs, in_addr rhs) noexcept |
| 19 | { |
| 20 | return lhs.s_addr == rhs.s_addr; |
| 21 | } |
| 22 | |
| 23 | constexpr bool operator==(in6_addr lhs, in6_addr rhs) noexcept |
| 24 | { |
| 25 | return std::equal(lhs.s6_addr32, lhs.s6_addr32 + 4, rhs.s6_addr32); |
| 26 | } |
| 27 | |
Ratan Gupta | 82549cc | 2017-04-21 08:45:23 +0530 | [diff] [blame] | 28 | namespace phosphor |
| 29 | { |
| 30 | namespace network |
| 31 | { |
Ratan Gupta | e05083a | 2017-09-16 07:12:11 +0530 | [diff] [blame] | 32 | |
William A. Kennington III | 0d7ce48 | 2019-01-30 17:14:23 -0800 | [diff] [blame] | 33 | // Byte representations for common address types in network byte order |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 34 | using InAddrAny = std::variant<in_addr, in6_addr>; |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 35 | class IfAddr |
| 36 | { |
| 37 | private: |
| 38 | InAddrAny addr; |
| 39 | uint8_t pfx; |
| 40 | |
| 41 | static void invalidPfx(uint8_t pfx); |
| 42 | |
| 43 | public: |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 44 | constexpr IfAddr() : addr({}), pfx(0) {} |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 45 | |
| 46 | constexpr IfAddr(InAddrAny addr, uint8_t pfx) : addr(addr), pfx(pfx) |
| 47 | { |
| 48 | std::visit( |
| 49 | [pfx](auto v) { |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 50 | if (sizeof(v) * 8 < pfx) |
| 51 | { |
| 52 | invalidPfx(pfx); |
| 53 | } |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 54 | }, |
| 55 | addr); |
| 56 | } |
| 57 | |
| 58 | constexpr auto getAddr() const |
| 59 | { |
| 60 | return addr; |
| 61 | } |
| 62 | |
| 63 | constexpr auto getPfx() const |
| 64 | { |
| 65 | return pfx; |
| 66 | } |
| 67 | |
| 68 | constexpr bool operator==(phosphor::network::IfAddr rhs) const noexcept |
| 69 | { |
| 70 | return addr == rhs.addr && pfx == rhs.pfx; |
| 71 | } |
| 72 | }; |
William A. Kennington III | 0d7ce48 | 2019-01-30 17:14:23 -0800 | [diff] [blame] | 73 | |
William A. Kennington III | 454a0de | 2022-11-12 01:01:04 -0800 | [diff] [blame] | 74 | /** @class InterfaceInfo |
| 75 | * @brief Information about interfaces from the kernel |
| 76 | */ |
| 77 | struct InterfaceInfo |
| 78 | { |
William A. Kennington III | 9c441fd | 2023-02-24 13:40:01 -0800 | [diff] [blame] | 79 | unsigned short type; |
William A. Kennington III | 454a0de | 2022-11-12 01:01:04 -0800 | [diff] [blame] | 80 | unsigned idx; |
| 81 | unsigned flags; |
| 82 | std::optional<std::string> name = std::nullopt; |
William A. Kennington III | b7d6a1a | 2023-06-17 02:00:53 -0700 | [diff] [blame^] | 83 | std::optional<stdplus::EtherAddr> mac = std::nullopt; |
William A. Kennington III | 454a0de | 2022-11-12 01:01:04 -0800 | [diff] [blame] | 84 | std::optional<unsigned> mtu = std::nullopt; |
| 85 | std::optional<unsigned> parent_idx = std::nullopt; |
| 86 | std::optional<std::string> kind = std::nullopt; |
| 87 | std::optional<uint16_t> vlan_id = std::nullopt; |
| 88 | |
| 89 | constexpr bool operator==(const InterfaceInfo& rhs) const noexcept |
| 90 | { |
| 91 | return idx == rhs.idx && flags == rhs.flags && name == rhs.name && |
| 92 | mac == rhs.mac && mtu == rhs.mtu && |
| 93 | parent_idx == rhs.parent_idx && kind == rhs.kind && |
| 94 | vlan_id == rhs.vlan_id; |
| 95 | } |
| 96 | }; |
| 97 | |
William A. Kennington III | 6a92363 | 2022-11-06 18:17:33 -0800 | [diff] [blame] | 98 | /** @class AddressInfo |
| 99 | * @brief Information about a addresses from the kernel |
| 100 | */ |
| 101 | struct AddressInfo |
| 102 | { |
| 103 | unsigned ifidx; |
| 104 | IfAddr ifaddr; |
| 105 | uint8_t scope; |
| 106 | uint32_t flags; |
William A. Kennington III | 454a0de | 2022-11-12 01:01:04 -0800 | [diff] [blame] | 107 | |
| 108 | constexpr bool operator==(const AddressInfo& rhs) const noexcept |
| 109 | { |
| 110 | return ifidx == rhs.ifidx && ifaddr == rhs.ifaddr && |
| 111 | scope == rhs.scope && flags == rhs.flags; |
| 112 | } |
William A. Kennington III | 6a92363 | 2022-11-06 18:17:33 -0800 | [diff] [blame] | 113 | }; |
| 114 | |
William A. Kennington III | a842690 | 2022-11-07 15:37:41 -0800 | [diff] [blame] | 115 | /** @class NeighborInfo |
| 116 | * @brief Information about a neighbor from the kernel |
| 117 | */ |
| 118 | struct NeighborInfo |
| 119 | { |
| 120 | unsigned ifidx; |
William A. Kennington III | 454a0de | 2022-11-12 01:01:04 -0800 | [diff] [blame] | 121 | uint16_t state; |
William A. Kennington III | d361514 | 2022-11-12 01:28:33 -0800 | [diff] [blame] | 122 | std::optional<InAddrAny> addr; |
William A. Kennington III | b7d6a1a | 2023-06-17 02:00:53 -0700 | [diff] [blame^] | 123 | std::optional<stdplus::EtherAddr> mac; |
William A. Kennington III | 454a0de | 2022-11-12 01:01:04 -0800 | [diff] [blame] | 124 | |
| 125 | constexpr bool operator==(const NeighborInfo& rhs) const noexcept |
| 126 | { |
| 127 | return ifidx == rhs.ifidx && state == rhs.state && addr == rhs.addr && |
| 128 | mac == rhs.mac; |
| 129 | } |
William A. Kennington III | a842690 | 2022-11-07 15:37:41 -0800 | [diff] [blame] | 130 | }; |
| 131 | |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 132 | namespace detail |
| 133 | { |
| 134 | |
William A. Kennington III | 71de63a | 2022-11-08 10:50:54 -0800 | [diff] [blame] | 135 | template <typename T, uint8_t size = sizeof(T)> |
| 136 | struct BswapAlign |
| 137 | { |
| 138 | using type = T; |
| 139 | }; |
| 140 | |
| 141 | template <typename T> |
| 142 | struct BswapAlign<T, 2> |
| 143 | { |
| 144 | using type alignas(uint16_t) = T; |
| 145 | }; |
| 146 | |
| 147 | template <typename T> |
| 148 | struct BswapAlign<T, 4> |
| 149 | { |
| 150 | using type alignas(uint32_t) = T; |
| 151 | }; |
| 152 | |
| 153 | template <typename T> |
| 154 | struct BswapAlign<T, 8> |
| 155 | { |
| 156 | using type alignas(uint64_t) = T; |
| 157 | }; |
| 158 | |
| 159 | template <typename T> |
| 160 | constexpr T bswapInt(typename BswapAlign<T>::type n) noexcept |
| 161 | { |
| 162 | static_assert(std::is_trivially_copyable_v<T>); |
| 163 | if constexpr (sizeof(T) == 2) |
| 164 | { |
| 165 | reinterpret_cast<uint16_t&>(n) = |
| 166 | __builtin_bswap16(reinterpret_cast<uint16_t&>(n)); |
| 167 | } |
| 168 | else if constexpr (sizeof(T) == 4) |
| 169 | { |
| 170 | reinterpret_cast<uint32_t&>(n) = |
| 171 | __builtin_bswap32(reinterpret_cast<uint32_t&>(n)); |
| 172 | } |
| 173 | else if constexpr (sizeof(T) == 8) |
| 174 | { |
| 175 | reinterpret_cast<uint64_t&>(n) = |
| 176 | __builtin_bswap64(reinterpret_cast<uint64_t&>(n)); |
| 177 | } |
| 178 | else |
| 179 | { |
| 180 | auto b = reinterpret_cast<std::byte*>(&n); |
| 181 | std::reverse(b, b + sizeof(n)); |
| 182 | } |
| 183 | return n; |
| 184 | } |
| 185 | |
| 186 | } // namespace detail |
| 187 | |
| 188 | template <typename T> |
| 189 | constexpr T bswap(T n) noexcept |
| 190 | { |
| 191 | return detail::bswapInt<T>(n); |
| 192 | } |
| 193 | |
| 194 | template <typename T> |
| 195 | constexpr T hton(T n) noexcept |
| 196 | { |
| 197 | if constexpr (std::endian::native == std::endian::big) |
| 198 | { |
| 199 | return n; |
| 200 | } |
| 201 | else if constexpr (std::endian::native == std::endian::little) |
| 202 | { |
| 203 | return bswap(n); |
| 204 | } |
| 205 | else |
| 206 | { |
| 207 | static_assert(std::is_same_v<T, void>); |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | template <typename T> |
| 212 | constexpr T ntoh(T n) noexcept |
| 213 | { |
| 214 | return hton(n); |
| 215 | } |
| 216 | |
| 217 | namespace detail |
| 218 | { |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 219 | inline constexpr auto charLookup = []() { |
| 220 | std::array<int8_t, 256> ret; |
| 221 | std::fill(ret.begin(), ret.end(), -1); |
| 222 | for (int8_t i = 0; i < 10; ++i) |
| 223 | { |
| 224 | ret[i + '0'] = i; |
| 225 | } |
| 226 | for (int8_t i = 0; i < 26; ++i) |
| 227 | { |
| 228 | ret[i + 'A'] = i + 10; |
| 229 | ret[i + 'a'] = i + 10; |
| 230 | } |
| 231 | return ret; |
| 232 | }(); |
William A. Kennington III | dd7c7b3 | 2022-11-04 15:19:36 -0700 | [diff] [blame] | 233 | inline constexpr auto intLookup = []() { |
| 234 | std::array<char, 36> ret; |
| 235 | for (int8_t i = 0; i < 10; ++i) |
| 236 | { |
| 237 | ret[i] = i + '0'; |
| 238 | } |
| 239 | for (int8_t i = 0; i < 26; ++i) |
| 240 | { |
| 241 | ret[i + 10] = i + 'a'; |
| 242 | } |
| 243 | return ret; |
| 244 | }(); |
| 245 | } // namespace detail |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 246 | |
| 247 | template <typename T, uint8_t base> |
| 248 | struct DecodeInt |
| 249 | { |
| 250 | static_assert(base > 1 && base <= 36); |
| 251 | static_assert(std::is_unsigned_v<T>); |
| 252 | |
| 253 | constexpr T operator()(std::string_view str) const |
| 254 | { |
| 255 | if (str.empty()) |
| 256 | { |
| 257 | throw std::invalid_argument("Empty Str"); |
| 258 | } |
| 259 | constexpr auto max = std::numeric_limits<T>::max(); |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 260 | auto ret = std::accumulate(str.begin(), str.end(), T{}, |
| 261 | [&](T r, char c) { |
| 262 | auto v = detail::charLookup[c]; |
| 263 | if (v < 0 || v >= base) |
| 264 | { |
| 265 | throw std::invalid_argument("Invalid numeral"); |
| 266 | } |
| 267 | if constexpr (std::popcount(base) == 1) |
| 268 | { |
| 269 | constexpr auto shift = std::countr_zero(base); |
| 270 | constexpr auto maxshift = max >> shift; |
| 271 | if (r > maxshift) |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 272 | { |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 273 | throw std::overflow_error("Integer Decode"); |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 274 | } |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 275 | return (r << shift) | v; |
| 276 | } |
| 277 | else |
| 278 | { |
| 279 | constexpr auto maxbase = max / base; |
| 280 | if (r > maxbase) |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 281 | { |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 282 | throw std::overflow_error("Integer Decode"); |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 283 | } |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 284 | r *= base; |
| 285 | if (max - v < r) |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 286 | { |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 287 | throw std::overflow_error("Integer Decode"); |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 288 | } |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 289 | return r + v; |
| 290 | } |
| 291 | }); |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 292 | return ret; |
| 293 | } |
| 294 | }; |
| 295 | |
William A. Kennington III | dd7c7b3 | 2022-11-04 15:19:36 -0700 | [diff] [blame] | 296 | template <typename T, uint8_t base> |
| 297 | struct EncodeInt |
| 298 | { |
| 299 | static_assert(base > 1 && base <= 36); |
| 300 | static_assert(std::is_unsigned_v<T>); |
| 301 | |
| 302 | static constexpr uint8_t buf_size = []() { |
| 303 | T v = std::numeric_limits<T>::max(); |
| 304 | uint8_t i = 0; |
| 305 | for (; v != 0; ++i) |
| 306 | { |
| 307 | v /= base; |
| 308 | } |
| 309 | return i; |
| 310 | }(); |
| 311 | using buf_type = std::array<char, buf_size>; |
| 312 | |
| 313 | constexpr uint8_t reverseFill(char* buf, T v) const noexcept |
| 314 | { |
| 315 | uint8_t i = 0; |
| 316 | do |
| 317 | { |
| 318 | if constexpr (std::popcount(base) == 1) |
| 319 | { |
| 320 | buf[i++] = detail::intLookup[v & 0xf]; |
| 321 | v >>= 4; |
| 322 | } |
| 323 | else |
| 324 | { |
| 325 | buf[i++] = detail::intLookup[v % base]; |
| 326 | v /= base; |
| 327 | } |
| 328 | } while (v > 0); |
| 329 | return i; |
| 330 | } |
| 331 | |
| 332 | constexpr char* operator()(char* buf, T v) const noexcept |
| 333 | { |
| 334 | uint8_t i = reverseFill(buf, v); |
| 335 | std::reverse(buf, buf + i); |
| 336 | return buf + i; |
| 337 | } |
| 338 | |
| 339 | constexpr char* operator()(char* buf, T v, uint8_t min_width) const noexcept |
| 340 | { |
| 341 | uint8_t i = reverseFill(buf, v); |
| 342 | auto end = buf + std::max(i, min_width); |
| 343 | std::fill(buf + i, end, '0'); |
| 344 | std::reverse(buf, end); |
| 345 | return end; |
| 346 | } |
| 347 | }; |
| 348 | |
William A. Kennington III | b01d08f | 2022-11-03 12:50:00 -0700 | [diff] [blame] | 349 | template <typename T> |
| 350 | struct ToAddr |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 351 | {}; |
William A. Kennington III | b01d08f | 2022-11-03 12:50:00 -0700 | [diff] [blame] | 352 | |
| 353 | template <> |
William A. Kennington III | df1178e | 2022-11-03 12:56:33 -0700 | [diff] [blame] | 354 | struct ToAddr<in_addr> |
| 355 | { |
| 356 | constexpr in_addr operator()(std::string_view str) const |
| 357 | { |
| 358 | constexpr DecodeInt<uint8_t, 10> di; |
| 359 | uint32_t addr = {}; |
| 360 | for (size_t i = 0; i < 3; ++i) |
| 361 | { |
| 362 | auto loc = str.find("."); |
| 363 | addr |= di(str.substr(0, loc)); |
| 364 | addr <<= 8; |
| 365 | str.remove_prefix(loc == str.npos ? str.size() : loc + 1); |
| 366 | if (str.empty()) |
| 367 | { |
| 368 | throw std::invalid_argument("Missing addr data"); |
| 369 | } |
| 370 | } |
| 371 | addr |= di(str); |
| 372 | return {hton(addr)}; |
| 373 | } |
| 374 | }; |
| 375 | |
William A. Kennington III | ec496a8 | 2022-11-04 02:17:20 -0700 | [diff] [blame] | 376 | template <> |
| 377 | struct ToAddr<in6_addr> |
| 378 | { |
| 379 | constexpr in6_addr operator()(std::string_view str) const |
| 380 | { |
| 381 | constexpr DecodeInt<uint16_t, 16> di; |
| 382 | in6_addr ret = {}; |
| 383 | size_t i = 0; |
| 384 | while (i < 8) |
| 385 | { |
| 386 | auto loc = str.find(':'); |
| 387 | if (i == 6 && loc == str.npos) |
| 388 | { |
| 389 | ret.s6_addr32[3] = ToAddr<in_addr>{}(str).s_addr; |
| 390 | return ret; |
| 391 | } |
| 392 | if (loc != 0 && !str.empty()) |
| 393 | { |
| 394 | ret.s6_addr16[i++] = hton(di(str.substr(0, loc))); |
| 395 | } |
| 396 | if (i < 8 && str.size() > loc + 1 && str[loc + 1] == ':') |
| 397 | { |
| 398 | str.remove_prefix(loc + 2); |
| 399 | break; |
| 400 | } |
| 401 | else if (str.empty()) |
| 402 | { |
| 403 | throw std::invalid_argument("IPv6 Data"); |
| 404 | } |
| 405 | str.remove_prefix(loc == str.npos ? str.size() : loc + 1); |
| 406 | } |
| 407 | if (str.starts_with(':')) |
| 408 | { |
| 409 | throw std::invalid_argument("Extra separator"); |
| 410 | } |
| 411 | size_t j = 7; |
| 412 | if (!str.empty() && i < 6 && str.find('.') != str.npos) |
| 413 | { |
| 414 | auto loc = str.rfind(':'); |
| 415 | ret.s6_addr32[3] = |
| 416 | ToAddr<in_addr>{}(str.substr(loc == str.npos ? 0 : loc + 1)) |
| 417 | .s_addr; |
| 418 | str.remove_suffix(loc == str.npos ? str.size() : str.size() - loc); |
| 419 | j -= 2; |
| 420 | } |
| 421 | while (!str.empty() && j > i) |
| 422 | { |
| 423 | auto loc = str.rfind(':'); |
| 424 | ret.s6_addr16[j--] = |
| 425 | hton(di(str.substr(loc == str.npos ? 0 : loc + 1))); |
| 426 | str.remove_suffix(loc == str.npos ? str.size() : str.size() - loc); |
| 427 | } |
| 428 | if (!str.empty()) |
| 429 | { |
| 430 | throw std::invalid_argument("Too much data"); |
| 431 | } |
| 432 | return ret; |
| 433 | } |
| 434 | }; |
| 435 | |
William A. Kennington III | ead7198 | 2022-11-04 02:18:10 -0700 | [diff] [blame] | 436 | template <> |
| 437 | struct ToAddr<InAddrAny> |
| 438 | { |
| 439 | constexpr InAddrAny operator()(std::string_view str) const |
| 440 | { |
| 441 | if (str.find(':') == str.npos) |
| 442 | { |
| 443 | return ToAddr<in_addr>{}(str); |
| 444 | } |
| 445 | return ToAddr<in6_addr>{}(str); |
| 446 | } |
| 447 | }; |
| 448 | |
| 449 | template <> |
| 450 | struct ToAddr<IfAddr> |
| 451 | { |
| 452 | constexpr IfAddr operator()(std::string_view str) const |
| 453 | { |
| 454 | auto pos = str.rfind('/'); |
| 455 | if (pos == str.npos) |
| 456 | { |
| 457 | throw std::invalid_argument("Invalid IfAddr"); |
| 458 | } |
| 459 | return {ToAddr<InAddrAny>{}(str.substr(0, pos)), |
| 460 | DecodeInt<uint8_t, 10>{}(str.substr(pos + 1))}; |
| 461 | } |
| 462 | }; |
| 463 | |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 464 | template <typename T> |
| 465 | struct ToStr |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 466 | {}; |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 467 | |
| 468 | template <> |
| 469 | struct ToStr<char> |
| 470 | { |
| 471 | static constexpr uint8_t buf_size = 1; |
| 472 | using buf_type = std::array<char, buf_size>; |
| 473 | |
| 474 | constexpr char* operator()(char* buf, char v) const noexcept |
| 475 | { |
| 476 | buf[0] = v; |
| 477 | return buf + 1; |
| 478 | } |
| 479 | }; |
| 480 | |
| 481 | template <> |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 482 | struct ToStr<in_addr> |
| 483 | { |
| 484 | // 4 octets * 3 dec chars + 3 separators |
| 485 | static constexpr uint8_t buf_size = 15; |
| 486 | using buf_type = std::array<char, buf_size>; |
| 487 | |
| 488 | constexpr char* operator()(char* buf, in_addr v) const noexcept |
| 489 | { |
| 490 | auto n = bswap(ntoh(v.s_addr)); |
| 491 | for (size_t i = 0; i < 3; ++i) |
| 492 | { |
| 493 | buf = ToStr<char>{}(EncodeInt<uint8_t, 10>{}(buf, n & 0xff), '.'); |
| 494 | n >>= 8; |
| 495 | } |
| 496 | return EncodeInt<uint8_t, 10>{}(buf, n & 0xff); |
| 497 | } |
| 498 | }; |
| 499 | |
| 500 | template <> |
| 501 | struct ToStr<in6_addr> |
| 502 | { |
| 503 | // 8 hextets * 4 hex chars + 7 separators |
| 504 | static constexpr uint8_t buf_size = 39; |
| 505 | using buf_type = std::array<char, buf_size>; |
| 506 | |
| 507 | constexpr char* operator()(char* buf, in6_addr v) const noexcept |
| 508 | { |
| 509 | // IPv4 in IPv6 Addr |
| 510 | if (v.s6_addr32[0] == 0 && v.s6_addr32[1] == 0 && |
| 511 | v.s6_addr32[2] == hton(uint32_t(0xffff))) |
| 512 | { |
| 513 | constexpr auto prefix = std::string_view("::ffff:"); |
| 514 | return ToStr<in_addr>{}( |
| 515 | std::copy(prefix.begin(), prefix.end(), buf), {v.s6_addr32[3]}); |
| 516 | } |
| 517 | |
| 518 | size_t skip_start = 0; |
| 519 | size_t skip_size = 0; |
| 520 | { |
| 521 | size_t new_start = 0; |
| 522 | size_t new_size = 0; |
| 523 | for (size_t i = 0; i < 9; ++i) |
| 524 | { |
| 525 | if (i < 8 && v.s6_addr16[i] == 0) |
| 526 | { |
| 527 | if (new_start + new_size == i) |
| 528 | { |
| 529 | new_size++; |
| 530 | } |
| 531 | else |
| 532 | { |
| 533 | new_start = i; |
| 534 | new_size = 1; |
| 535 | } |
| 536 | } |
| 537 | else if (new_start + new_size == i && new_size > skip_size) |
| 538 | { |
| 539 | skip_start = new_start; |
| 540 | skip_size = new_size; |
| 541 | } |
| 542 | } |
| 543 | } |
| 544 | for (size_t i = 0; i < 8; ++i) |
| 545 | { |
| 546 | if (i == skip_start && skip_size > 1) |
| 547 | { |
| 548 | if (i == 0) |
| 549 | { |
| 550 | *(buf++) = ':'; |
| 551 | } |
| 552 | *(buf++) = ':'; |
| 553 | i += skip_size - 1; |
| 554 | continue; |
| 555 | } |
| 556 | buf = EncodeInt<uint16_t, 16>{}(buf, ntoh(v.s6_addr16[i])); |
| 557 | if (i < 7) |
| 558 | { |
| 559 | *(buf++) = ':'; |
| 560 | } |
| 561 | } |
| 562 | return buf; |
| 563 | } |
| 564 | }; |
| 565 | |
| 566 | template <> |
| 567 | struct ToStr<InAddrAny> |
| 568 | { |
| 569 | // IPv6 is the bigger of the addrs |
| 570 | static constexpr uint8_t buf_size = ToStr<in6_addr>::buf_size; |
| 571 | using buf_type = std::array<char, buf_size>; |
| 572 | |
| 573 | constexpr char* operator()(char* buf, InAddrAny v) const noexcept |
| 574 | { |
| 575 | return std::visit([=](auto v) { return ToStr<decltype(v)>{}(buf, v); }, |
| 576 | v); |
| 577 | } |
| 578 | }; |
| 579 | |
| 580 | template <> |
| 581 | struct ToStr<IfAddr> |
| 582 | { |
| 583 | // InAddrAny + sep + 3 prefix chars |
| 584 | static constexpr uint8_t buf_size = ToStr<InAddrAny>::buf_size + 4; |
| 585 | using buf_type = std::array<char, buf_size>; |
| 586 | |
| 587 | constexpr char* operator()(char* buf, IfAddr v) const noexcept |
| 588 | { |
| 589 | buf = ToStr<InAddrAny>{}(buf, v.getAddr()); |
| 590 | buf = ToStr<char>{}(buf, '/'); |
| 591 | return EncodeInt<uint8_t, 10>{}(buf, v.getPfx()); |
| 592 | } |
| 593 | }; |
| 594 | |
William A. Kennington III | 238ef99 | 2022-11-03 12:47:49 -0700 | [diff] [blame] | 595 | namespace detail |
| 596 | { |
William A. Kennington III | 71de63a | 2022-11-08 10:50:54 -0800 | [diff] [blame] | 597 | |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 598 | template <typename T> |
| 599 | constexpr bool vcontains() noexcept |
| 600 | { |
| 601 | return false; |
| 602 | } |
| 603 | |
| 604 | template <typename T, typename V, typename... Vs> |
| 605 | constexpr bool vcontains() noexcept |
| 606 | { |
| 607 | return vcontains<T, Vs...>() || std::is_same_v<T, V>; |
| 608 | } |
| 609 | |
| 610 | template <typename T, typename... Types> |
| 611 | constexpr std::enable_if_t<vcontains<T, Types...>(), bool> |
| 612 | veq(T t, std::variant<Types...> v) noexcept |
| 613 | { |
| 614 | return std::visit( |
| 615 | [t](auto v) { |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 616 | if constexpr (std::is_same_v<T, decltype(v)>) |
| 617 | { |
| 618 | return v == t; |
| 619 | } |
| 620 | else |
| 621 | { |
| 622 | return false; |
| 623 | } |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 624 | }, |
| 625 | v); |
| 626 | } |
| 627 | |
| 628 | template <typename T> |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 629 | struct ToStrBuf |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 630 | { |
| 631 | public: |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 632 | constexpr std::string_view operator()(T v) noexcept |
| 633 | { |
| 634 | return {buf.data(), ToStr<T>{}(buf.data(), v)}; |
| 635 | } |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 636 | |
| 637 | private: |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 638 | typename ToStr<T>::buf_type buf; |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 639 | }; |
| 640 | |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 641 | template <typename T> |
| 642 | struct Format |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 643 | { |
| 644 | private: |
| 645 | fmt::formatter<std::string_view> formatter; |
| 646 | |
| 647 | public: |
| 648 | template <typename ParseContext> |
| 649 | constexpr auto parse(ParseContext& ctx) |
| 650 | { |
| 651 | return ctx.begin(); |
| 652 | } |
| 653 | |
| 654 | template <typename FormatContext> |
| 655 | auto format(auto v, FormatContext& ctx) const |
| 656 | { |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 657 | return formatter.format(ToStrBuf<T>{}(v), ctx); |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 658 | } |
| 659 | }; |
| 660 | } // namespace detail |
Gunnar Mills | 57d9c50 | 2018-09-14 14:42:34 -0500 | [diff] [blame] | 661 | } // namespace network |
| 662 | } // namespace phosphor |
William A. Kennington III | 3e471c5 | 2022-10-27 19:46:07 -0700 | [diff] [blame] | 663 | |
William A. Kennington III | 653114f | 2022-11-01 22:34:04 -0700 | [diff] [blame] | 664 | template <> |
| 665 | struct std::hash<in_addr> |
| 666 | { |
| 667 | std::size_t operator()(in_addr addr) const noexcept; |
| 668 | }; |
| 669 | |
| 670 | template <> |
| 671 | struct std::hash<in6_addr> |
| 672 | { |
| 673 | std::size_t operator()(in6_addr addr) const noexcept; |
| 674 | }; |
| 675 | |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 676 | template <> |
| 677 | struct std::hash<phosphor::network::IfAddr> |
| 678 | { |
| 679 | std::size_t operator()(phosphor::network::IfAddr addr) const noexcept; |
| 680 | }; |
| 681 | |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 682 | namespace fmt |
| 683 | { |
| 684 | template <> |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 685 | struct formatter<in_addr> : phosphor::network::detail::Format<in_addr> |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 686 | {}; |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 687 | template <> |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 688 | struct formatter<in6_addr> : phosphor::network::detail::Format<in6_addr> |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 689 | {}; |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 690 | template <> |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 691 | struct formatter<phosphor::network::InAddrAny> : |
| 692 | phosphor::network::detail::Format<phosphor::network::InAddrAny> |
| 693 | {}; |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 694 | template <> |
Patrick Williams | 89d734b | 2023-05-10 07:50:25 -0500 | [diff] [blame] | 695 | struct formatter<phosphor::network::IfAddr> : |
| 696 | phosphor::network::detail::Format<phosphor::network::IfAddr> |
| 697 | {}; |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 698 | } // namespace fmt |
| 699 | |
| 700 | namespace std |
| 701 | { |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 702 | string to_string(in_addr value); |
| 703 | string to_string(in6_addr value); |
| 704 | string to_string(phosphor::network::InAddrAny value); |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 705 | string to_string(phosphor::network::IfAddr value); |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 706 | } // namespace std |
| 707 | |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 708 | template <typename T> |
| 709 | constexpr std::enable_if_t<!std::is_same_v<phosphor::network::InAddrAny, T>, |
| 710 | bool> |
| 711 | operator==(phosphor::network::InAddrAny lhs, T rhs) noexcept |
| 712 | { |
| 713 | return phosphor::network::detail::veq(rhs, lhs); |
| 714 | } |
| 715 | |
William A. Kennington III | 86eb8b7 | 2022-11-01 22:35:04 -0700 | [diff] [blame] | 716 | auto& operator<<(auto& os, in_addr v) |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 717 | { |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 718 | return os << phosphor::network::detail::ToStrBuf<in_addr>{}(v); |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 719 | } |
| 720 | |
William A. Kennington III | 86eb8b7 | 2022-11-01 22:35:04 -0700 | [diff] [blame] | 721 | auto& operator<<(auto& os, in6_addr v) |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 722 | { |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 723 | return os << phosphor::network::detail::ToStrBuf<in6_addr>{}(v); |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 724 | } |
| 725 | |
William A. Kennington III | 86eb8b7 | 2022-11-01 22:35:04 -0700 | [diff] [blame] | 726 | auto& operator<<(auto& os, phosphor::network::InAddrAny v) |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 727 | { |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 728 | phosphor::network::detail::ToStrBuf<phosphor::network::InAddrAny> tsb; |
| 729 | return os << tsb(v); |
William A. Kennington III | bb0eacc | 2022-10-21 15:22:06 -0700 | [diff] [blame] | 730 | } |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 731 | |
| 732 | auto& operator<<(auto& os, phosphor::network::IfAddr v) |
| 733 | { |
William A. Kennington III | 55bdc36 | 2022-11-04 17:57:21 -0700 | [diff] [blame] | 734 | phosphor::network::detail::ToStrBuf<phosphor::network::IfAddr> tsb; |
| 735 | return os << tsb(v); |
William A. Kennington III | b9d7cba | 2022-11-08 10:54:11 -0800 | [diff] [blame] | 736 | } |
William A. Kennington III | 13d665c | 2022-11-15 20:34:40 -0800 | [diff] [blame] | 737 | |
| 738 | namespace phosphor::network |
| 739 | { |
| 740 | |
| 741 | /** @brief Contains all of the object information about the interface */ |
| 742 | struct AllIntfInfo |
| 743 | { |
| 744 | InterfaceInfo intf; |
| 745 | std::optional<in_addr> defgw4 = std::nullopt; |
| 746 | std::optional<in6_addr> defgw6 = std::nullopt; |
| 747 | std::unordered_map<IfAddr, AddressInfo> addrs = {}; |
| 748 | std::unordered_map<InAddrAny, NeighborInfo> staticNeighs = {}; |
| 749 | }; |
| 750 | |
| 751 | } // namespace phosphor::network |