Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004-2023 Savoir-faire Linux Inc. |
| 3 | * |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 4 | * This program is free software: you can redistribute it and/or modify |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 5 | * it under the terms of the GNU General Public License as published by |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 6 | * the Free Software Foundation, either version 3 of the License, or |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
Adrien Béraud | cb75362 | 2023-07-17 22:32:49 -0400 | [diff] [blame] | 15 | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 16 | */ |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 17 | #include "ip_utils.h" |
Adrien Béraud | 80c14e1 | 2023-07-18 16:13:15 -0400 | [diff] [blame] | 18 | #include "sip_utils.h" |
| 19 | #include "string_utils.h" |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 20 | |
Adrien Béraud | 80c14e1 | 2023-07-18 16:13:15 -0400 | [diff] [blame] | 21 | #include <fmt/format.h> |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 22 | |
Adrien Béraud | 4822fa0 | 2023-07-30 00:21:05 -0400 | [diff] [blame] | 23 | extern "C" { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 24 | #include <sys/types.h> |
| 25 | #include <unistd.h> |
| 26 | #include <limits.h> |
| 27 | |
| 28 | #ifdef _WIN32 |
| 29 | #define InetPtonA inet_pton |
| 30 | WINSOCK_API_LINKAGE INT WSAAPI InetPtonA(INT Family, LPCSTR pStringBuf, PVOID pAddr); |
| 31 | #else |
| 32 | #include <arpa/inet.h> |
| 33 | #include <arpa/nameser.h> |
| 34 | #include <resolv.h> |
| 35 | #include <netdb.h> |
| 36 | #include <netinet/ip.h> |
| 37 | #include <net/if.h> |
| 38 | #include <ifaddrs.h> |
| 39 | #include <sys/ioctl.h> |
| 40 | #endif |
Adrien Béraud | 4822fa0 | 2023-07-30 00:21:05 -0400 | [diff] [blame] | 41 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 42 | |
| 43 | #ifndef HOST_NAME_MAX |
| 44 | #ifdef MAX_COMPUTERNAME_LENGTH |
| 45 | #define HOST_NAME_MAX MAX_COMPUTERNAME_LENGTH |
| 46 | #else |
| 47 | // Max 255 chars as per RFC 1035 |
| 48 | #define HOST_NAME_MAX 255 |
| 49 | #endif |
| 50 | #endif |
| 51 | |
Adrien Béraud | 1ae60aa | 2023-07-07 09:55:09 -0400 | [diff] [blame] | 52 | namespace dhtnet { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 53 | |
Adrien Béraud | 9ed4dd9 | 2023-07-19 00:13:05 -0400 | [diff] [blame] | 54 | namespace sip_utils { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 55 | std::string_view |
| 56 | sip_strerror(pj_status_t code) |
| 57 | { |
| 58 | thread_local char err_msg[PJ_ERR_MSG_SIZE]; |
Adrien Béraud | 80c14e1 | 2023-07-18 16:13:15 -0400 | [diff] [blame] | 59 | return sip_utils::as_view(pj_strerror(code, err_msg, sizeof err_msg)); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 60 | } |
Adrien Béraud | 9ed4dd9 | 2023-07-19 00:13:05 -0400 | [diff] [blame] | 61 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 62 | |
| 63 | std::string |
| 64 | ip_utils::getHostname() |
| 65 | { |
| 66 | char hostname[HOST_NAME_MAX]; |
| 67 | if (gethostname(hostname, HOST_NAME_MAX)) |
| 68 | return {}; |
| 69 | return hostname; |
| 70 | } |
| 71 | |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 72 | ip_utils::IpInterfaceAddress |
| 73 | ip_utils::getHostName() |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 74 | { |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 75 | IpInterfaceAddress ret; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 76 | char tempstr[INET_ADDRSTRLEN]; |
| 77 | const char* p = NULL; |
| 78 | #ifdef _WIN32 |
| 79 | struct hostent* h = NULL; |
| 80 | struct sockaddr_in localAddr; |
| 81 | memset(&localAddr, 0, sizeof(localAddr)); |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 82 | char out[256]; |
| 83 | if (gethostname(out, sizeof(out)) == SOCKET_ERROR) { |
| 84 | return {}; |
| 85 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 86 | h = gethostbyname(out); |
| 87 | if (h != NULL) { |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 88 | memcpy(&localAddr.sin_addr, h->h_addr_list[0], sizeof(localAddr.sin_addr)); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 89 | p = inet_ntop(AF_INET, &localAddr.sin_addr, tempstr, sizeof(tempstr)); |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 90 | if (p) { |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 91 | ret.address = p; |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 92 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 93 | } |
| 94 | #elif (defined(BSD) && BSD >= 199306) || defined(__FreeBSD_kernel__) |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 95 | struct ifaddrs* ifap; |
| 96 | struct ifaddrs* ifa; |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 97 | if (getifaddrs(&ifap) != 0) { |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 98 | return {}; |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 99 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 100 | // Cycle through available interfaces. |
| 101 | for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { |
| 102 | // Skip loopback, point-to-point and down interfaces. |
| 103 | // except don't skip down interfaces if we're trying to get |
| 104 | // a list of configurable interfaces. |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 105 | if ((ifa->ifa_flags & IFF_LOOPBACK) || (!(ifa->ifa_flags & IFF_UP))) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 106 | continue; |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 107 | } |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 108 | auto family = ifa->ifa_addr->sa_family; |
| 109 | if (family == AF_INET) { |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 110 | void* addr = &((struct sockaddr_in*)ifa->ifa_addr)->sin_addr; |
| 111 | if (((struct sockaddr_in*)ifa->ifa_addr)->sin_addr.s_addr == htonl(INADDR_LOOPBACK)) { |
| 112 | continue; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 113 | } |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 114 | ret.interface = ifa->ifa_name; |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 115 | p = inet_ntop(family, addr, tempstr, sizeof(tempstr)); |
| 116 | if (p) { |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 117 | ret.address = p; |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 118 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 119 | break; |
| 120 | } |
| 121 | } |
| 122 | freeifaddrs(ifap); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 123 | #else |
| 124 | struct ifconf ifConf; |
| 125 | struct ifreq ifReq; |
| 126 | struct sockaddr_in localAddr; |
| 127 | char szBuffer[MAX_INTERFACE * sizeof(struct ifreq)]; |
| 128 | int nResult; |
| 129 | int localSock; |
| 130 | memset(&ifConf, 0, sizeof(ifConf)); |
| 131 | memset(&ifReq, 0, sizeof(ifReq)); |
| 132 | memset(szBuffer, 0, sizeof(szBuffer)); |
| 133 | memset(&localAddr, 0, sizeof(localAddr)); |
| 134 | // Create an unbound datagram socket to do the SIOCGIFADDR ioctl on. |
| 135 | localSock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 136 | if (localSock == INVALID_SOCKET) { |
| 137 | return {}; |
| 138 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 139 | /* Get the interface configuration information... */ |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 140 | ifConf.ifc_len = sizeof(szBuffer); |
| 141 | ifConf.ifc_buf = (caddr_t)szBuffer; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 142 | nResult = ioctl(localSock, SIOCGIFCONF, &ifConf); |
| 143 | if (nResult < 0) { |
| 144 | close(localSock); |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 145 | return {}; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 146 | } |
| 147 | unsigned int i; |
| 148 | unsigned int j = 0; |
| 149 | // Cycle through the list of interfaces looking for IP addresses. |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 150 | for (i = 0u; i < ifConf.ifc_len && j < MIN_INTERFACE;) { |
| 151 | struct ifreq* pifReq = (struct ifreq*)((caddr_t)ifConf.ifc_req + i); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 152 | i += sizeof *pifReq; |
| 153 | // See if this is the sort of interface we want to deal with. |
| 154 | memset(ifReq.ifr_name, 0, sizeof(ifReq.ifr_name)); |
| 155 | strncpy(ifReq.ifr_name, pifReq->ifr_name, sizeof(ifReq.ifr_name)); |
| 156 | ioctl(localSock, SIOCGIFFLAGS, &ifReq); |
| 157 | // Skip loopback, point-to-point and down interfaces. |
| 158 | // except don't skip down interfaces if we're trying to get |
| 159 | // a list of configurable interfaces. |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 160 | if ((ifReq.ifr_flags & IFF_LOOPBACK) || (!(ifReq.ifr_flags & IFF_UP))) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 161 | continue; |
Andreas Traczyk | 24cc01e | 2023-08-23 18:55:15 -0400 | [diff] [blame] | 162 | } |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 163 | if (pifReq->ifr_addr.sa_family == AF_INET) { |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 164 | if (((sockaddr_in*)&pifReq->ifr_addr)->sin_addr.s_addr == htonl(INADDR_LOOPBACK)) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 165 | // We don't want the loopback interface. Go to the next one. |
| 166 | continue; |
| 167 | } |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 168 | ret.interface = pifReq->ifr_name; |
| 169 | p = inet_ntop(pifReq->ifr_addr.sa_family, |
Adrien Beraud | 64bb00f | 2023-08-23 19:06:46 -0400 | [diff] [blame] | 170 | &((sockaddr_in*)&pifReq->ifr_addr)->sin_addr, |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 171 | tempstr, |
| 172 | sizeof(tempstr)); |
| 173 | if (p) |
| 174 | ret.address = p; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 175 | } |
| 176 | j++; // Increment j if we found an address which is not loopback and is up. |
| 177 | } |
| 178 | close(localSock); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 179 | #endif |
Adrien Beraud | 64bb00f | 2023-08-23 19:06:46 -0400 | [diff] [blame] | 180 | return ret; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 181 | } |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 182 | |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 183 | std::string |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 184 | ip_utils::getGateway(std::string_view localHost, ip_utils::subnet_mask prefix) |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 185 | { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 186 | if (prefix == ip_utils::subnet_mask::prefix_32bit) |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 187 | return std::string(localHost); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 188 | std::string defaultGw {}; |
| 189 | // Make a vector of each individual number in the ip address. |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 190 | std::vector<std::string_view> tokens = split_string(localHost, '.'); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 191 | // Build a gateway address from the individual ip components. |
| 192 | for (unsigned i = 0; i <= (unsigned) prefix; i++) |
Adrien Béraud | 80c14e1 | 2023-07-18 16:13:15 -0400 | [diff] [blame] | 193 | defaultGw = fmt::format("{:s}{:s}.", defaultGw, tokens[i]); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 194 | for (unsigned i = (unsigned) ip_utils::subnet_mask::prefix_32bit; |
| 195 | i > (unsigned) prefix + 1; |
| 196 | i--) |
| 197 | defaultGw += "0."; |
| 198 | defaultGw += "1"; |
| 199 | return defaultGw; |
| 200 | } |
| 201 | |
| 202 | IpAddr |
| 203 | ip_utils::getLocalGateway() |
| 204 | { |
| 205 | char localHostBuf[INET_ADDRSTRLEN]; |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 206 | auto hostInfo = ip_utils::getHostName(); |
| 207 | if (hostInfo.address.empty()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 208 | // JAMI_WARN("Couldn't find local host"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 209 | return {}; |
| 210 | } else { |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 211 | return IpAddr(ip_utils::getGateway(hostInfo.address, ip_utils::subnet_mask::prefix_24bit)); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 212 | } |
| 213 | } |
| 214 | |
| 215 | std::vector<IpAddr> |
| 216 | ip_utils::getAddrList(std::string_view name, pj_uint16_t family) |
| 217 | { |
| 218 | std::vector<IpAddr> ipList; |
| 219 | if (name.empty()) |
| 220 | return ipList; |
| 221 | if (IpAddr::isValid(name, family)) { |
| 222 | ipList.emplace_back(name); |
| 223 | return ipList; |
| 224 | } |
| 225 | |
| 226 | static constexpr unsigned MAX_ADDR_NUM = 128; |
| 227 | pj_addrinfo res[MAX_ADDR_NUM]; |
| 228 | unsigned addr_num = MAX_ADDR_NUM; |
| 229 | const pj_str_t pjname(sip_utils::CONST_PJ_STR(name)); |
| 230 | auto status = pj_getaddrinfo(family, &pjname, &addr_num, res); |
| 231 | if (status != PJ_SUCCESS) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 232 | // JAMI_ERR("Error resolving %.*s : %s", |
| 233 | // (int) name.size(), |
| 234 | // name.data(), |
| 235 | // sip_utils::sip_strerror(status).c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 236 | return ipList; |
| 237 | } |
| 238 | |
| 239 | for (unsigned i = 0; i < addr_num; i++) { |
| 240 | bool found = false; |
| 241 | for (const auto& ip : ipList) |
| 242 | if (!pj_sockaddr_cmp(&ip, &res[i].ai_addr)) { |
| 243 | found = true; |
| 244 | break; |
| 245 | } |
| 246 | if (!found) |
| 247 | ipList.emplace_back(res[i].ai_addr); |
| 248 | } |
| 249 | |
| 250 | return ipList; |
| 251 | } |
| 252 | |
| 253 | bool |
| 254 | ip_utils::haveCommonAddr(const std::vector<IpAddr>& a, const std::vector<IpAddr>& b) |
| 255 | { |
| 256 | for (const auto& i : a) { |
| 257 | for (const auto& j : b) { |
| 258 | if (i == j) |
| 259 | return true; |
| 260 | } |
| 261 | } |
| 262 | return false; |
| 263 | } |
| 264 | |
| 265 | IpAddr |
| 266 | ip_utils::getLocalAddr(pj_uint16_t family) |
| 267 | { |
| 268 | IpAddr ip_addr {}; |
| 269 | pj_status_t status = pj_gethostip(family, ip_addr.pjPtr()); |
| 270 | if (status == PJ_SUCCESS) { |
| 271 | return ip_addr; |
| 272 | } |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 273 | // JAMI_WARN("Could not get preferred address familly (%s)", |
| 274 | // (family == pj_AF_INET6()) ? "IPv6" : "IPv4"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 275 | family = (family == pj_AF_INET()) ? pj_AF_INET6() : pj_AF_INET(); |
| 276 | status = pj_gethostip(family, ip_addr.pjPtr()); |
| 277 | if (status == PJ_SUCCESS) { |
| 278 | return ip_addr; |
| 279 | } |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 280 | // JAMI_ERR("Could not get local IP"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 281 | return ip_addr; |
| 282 | } |
| 283 | |
| 284 | IpAddr |
| 285 | ip_utils::getInterfaceAddr(const std::string& interface, pj_uint16_t family) |
| 286 | { |
| 287 | if (interface == DEFAULT_INTERFACE) |
| 288 | return getLocalAddr(family); |
| 289 | |
| 290 | IpAddr addr {}; |
| 291 | |
| 292 | #ifndef _WIN32 |
| 293 | const auto unix_family = family == pj_AF_INET() ? AF_INET : AF_INET6; |
| 294 | |
| 295 | int fd = socket(unix_family, SOCK_DGRAM, 0); |
| 296 | if (fd < 0) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 297 | // JAMI_ERR("Could not open socket: %m"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 298 | return addr; |
| 299 | } |
| 300 | |
| 301 | if (unix_family == AF_INET6) { |
| 302 | int val = family != pj_AF_UNSPEC(); |
| 303 | if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (void*) &val, sizeof(val)) < 0) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 304 | // JAMI_ERR("Could not setsockopt: %m"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 305 | close(fd); |
| 306 | return addr; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | ifreq ifr; |
| 311 | strncpy(ifr.ifr_name, interface.c_str(), sizeof ifr.ifr_name); |
| 312 | // guarantee that ifr_name is NULL-terminated |
| 313 | ifr.ifr_name[sizeof(ifr.ifr_name) - 1] = '\0'; |
| 314 | |
| 315 | memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); |
| 316 | ifr.ifr_addr.sa_family = unix_family; |
| 317 | |
| 318 | ioctl(fd, SIOCGIFADDR, &ifr); |
| 319 | close(fd); |
| 320 | |
| 321 | addr = ifr.ifr_addr; |
| 322 | if (addr.isUnspecified()) |
| 323 | return getLocalAddr(addr.getFamily()); |
| 324 | #else // _WIN32 |
| 325 | struct addrinfo hints; |
| 326 | struct addrinfo* result = NULL; |
| 327 | struct sockaddr_in* sockaddr_ipv4; |
| 328 | struct sockaddr_in6* sockaddr_ipv6; |
| 329 | |
| 330 | ZeroMemory(&hints, sizeof(hints)); |
| 331 | |
| 332 | DWORD dwRetval = getaddrinfo(interface.c_str(), "0", &hints, &result); |
| 333 | if (dwRetval != 0) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 334 | // JAMI_ERR("getaddrinfo failed with error: %lu", dwRetval); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 335 | return addr; |
| 336 | } |
| 337 | |
| 338 | switch (result->ai_family) { |
| 339 | sockaddr_ipv4 = (struct sockaddr_in*) result->ai_addr; |
| 340 | addr = sockaddr_ipv4->sin_addr; |
| 341 | break; |
| 342 | case AF_INET6: |
| 343 | sockaddr_ipv6 = (struct sockaddr_in6*) result->ai_addr; |
| 344 | addr = sockaddr_ipv6->sin6_addr; |
| 345 | break; |
| 346 | default: |
| 347 | break; |
| 348 | } |
| 349 | |
| 350 | if (addr.isUnspecified()) |
| 351 | return getLocalAddr(addr.getFamily()); |
| 352 | #endif // !_WIN32 |
| 353 | |
| 354 | return addr; |
| 355 | } |
| 356 | |
| 357 | std::vector<std::string> |
| 358 | ip_utils::getAllIpInterfaceByName() |
| 359 | { |
| 360 | std::vector<std::string> ifaceList; |
| 361 | ifaceList.push_back("default"); |
| 362 | #ifndef _WIN32 |
| 363 | static ifreq ifreqs[20]; |
| 364 | ifconf ifconf; |
| 365 | |
| 366 | ifconf.ifc_buf = (char*) (ifreqs); |
| 367 | ifconf.ifc_len = sizeof(ifreqs); |
| 368 | |
| 369 | int sock = socket(AF_INET6, SOCK_STREAM, 0); |
| 370 | |
| 371 | if (sock >= 0) { |
| 372 | if (ioctl(sock, SIOCGIFCONF, &ifconf) >= 0) |
| 373 | for (unsigned i = 0; i < ifconf.ifc_len / sizeof(ifreq); ++i) |
| 374 | ifaceList.push_back(std::string(ifreqs[i].ifr_name)); |
| 375 | |
| 376 | close(sock); |
| 377 | } |
| 378 | |
| 379 | #else |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 380 | // JAMI_ERR("Not implemented yet. (iphlpapi.h problem)"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 381 | #endif |
| 382 | return ifaceList; |
| 383 | } |
| 384 | |
| 385 | std::vector<std::string> |
| 386 | ip_utils::getAllIpInterface() |
| 387 | { |
| 388 | pj_sockaddr addrList[16]; |
| 389 | unsigned addrCnt = PJ_ARRAY_SIZE(addrList); |
| 390 | |
| 391 | std::vector<std::string> ifaceList; |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 392 | if (pj_enum_ip_interface(pj_AF_UNSPEC(), &addrCnt, addrList) == PJ_SUCCESS) { |
| 393 | for (unsigned i = 0; i < addrCnt; i++) { |
| 394 | char addr[PJ_INET6_ADDRSTRLEN]; |
| 395 | pj_sockaddr_print(&addrList[i], addr, sizeof(addr), 0); |
Adrien Béraud | 63a1fac | 2023-08-23 09:31:17 -0400 | [diff] [blame] | 396 | ifaceList.emplace_back(addr); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 397 | } |
| 398 | } |
| 399 | |
| 400 | return ifaceList; |
| 401 | } |
| 402 | |
| 403 | std::vector<IpAddr> |
| 404 | ip_utils::getLocalNameservers() |
| 405 | { |
| 406 | std::vector<IpAddr> res; |
| 407 | #if defined __ANDROID__ || defined _WIN32 || TARGET_OS_IPHONE |
| 408 | #ifdef _MSC_VER |
| 409 | #pragma message(__FILE__ "(" STR2(__LINE__) ") : -NOTE- " \ |
| 410 | "Not implemented") |
| 411 | #else |
| 412 | #warning "Not implemented" |
| 413 | #endif |
| 414 | #else |
| 415 | if (not(_res.options & RES_INIT)) |
| 416 | res_init(); |
| 417 | res.insert(res.end(), _res.nsaddr_list, _res.nsaddr_list + _res.nscount); |
| 418 | #endif |
| 419 | return res; |
| 420 | } |
| 421 | |
| 422 | bool |
| 423 | IpAddr::isValid(std::string_view address, pj_uint16_t family) |
| 424 | { |
| 425 | const pj_str_t pjstring(sip_utils::CONST_PJ_STR(address)); |
| 426 | pj_str_t ret_str; |
| 427 | pj_uint16_t ret_port; |
| 428 | int ret_family; |
| 429 | auto status = pj_sockaddr_parse2(pj_AF_UNSPEC(), 0, &pjstring, &ret_str, &ret_port, &ret_family); |
| 430 | if (status != PJ_SUCCESS || (family != pj_AF_UNSPEC() && ret_family != family)) |
| 431 | return false; |
| 432 | |
| 433 | char buf[PJ_INET6_ADDRSTRLEN]; |
| 434 | pj_str_t addr_with_null = {buf, 0}; |
| 435 | pj_strncpy_with_null(&addr_with_null, &ret_str, sizeof(buf)); |
| 436 | struct sockaddr sa; |
| 437 | return inet_pton(ret_family == pj_AF_INET6() ? AF_INET6 : AF_INET, buf, &(sa.sa_data)) == 1; |
| 438 | } |
| 439 | |
| 440 | bool |
| 441 | IpAddr::isUnspecified() const |
| 442 | { |
| 443 | switch (addr.addr.sa_family) { |
| 444 | case AF_INET: |
| 445 | return IN_IS_ADDR_UNSPECIFIED(&addr.ipv4.sin_addr); |
| 446 | case AF_INET6: |
| 447 | return IN6_IS_ADDR_UNSPECIFIED(reinterpret_cast<const in6_addr*>(&addr.ipv6.sin6_addr)); |
| 448 | default: |
| 449 | return true; |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | bool |
| 454 | IpAddr::isLoopback() const |
| 455 | { |
| 456 | switch (addr.addr.sa_family) { |
| 457 | case AF_INET: { |
| 458 | auto addr_host = ntohl(addr.ipv4.sin_addr.s_addr); |
| 459 | uint8_t b1 = (uint8_t)(addr_host >> 24); |
| 460 | return b1 == 127; |
| 461 | } |
| 462 | case AF_INET6: |
| 463 | return IN6_IS_ADDR_LOOPBACK(reinterpret_cast<const in6_addr*>(&addr.ipv6.sin6_addr)); |
| 464 | default: |
| 465 | return false; |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | bool |
| 470 | IpAddr::isPrivate() const |
| 471 | { |
| 472 | if (isLoopback()) { |
| 473 | return true; |
| 474 | } |
| 475 | switch (addr.addr.sa_family) { |
| 476 | case AF_INET: { |
| 477 | auto addr_host = ntohl(addr.ipv4.sin_addr.s_addr); |
| 478 | uint8_t b1, b2; |
| 479 | b1 = (uint8_t)(addr_host >> 24); |
| 480 | b2 = (uint8_t)((addr_host >> 16) & 0x0ff); |
| 481 | // 10.x.y.z |
| 482 | if (b1 == 10) |
| 483 | return true; |
| 484 | // 172.16.0.0 - 172.31.255.255 |
| 485 | if ((b1 == 172) && (b2 >= 16) && (b2 <= 31)) |
| 486 | return true; |
| 487 | // 192.168.0.0 - 192.168.255.255 |
| 488 | if ((b1 == 192) && (b2 == 168)) |
| 489 | return true; |
| 490 | return false; |
| 491 | } |
| 492 | case AF_INET6: { |
| 493 | const pj_uint8_t* addr6 = reinterpret_cast<const pj_uint8_t*>(&addr.ipv6.sin6_addr); |
| 494 | if (addr6[0] == 0xfc) |
| 495 | return true; |
| 496 | return false; |
| 497 | } |
| 498 | default: |
| 499 | return false; |
| 500 | } |
| 501 | } |
Sébastien Blin | 464bdff | 2023-07-19 08:02:53 -0400 | [diff] [blame] | 502 | } // namespace dhtnet |