From 4658dd0d480fcc028b21a54da6e1894bcbdea75c Mon Sep 17 00:00:00 2001 From: J-P Nurmi Date: Mon, 6 Mar 2023 20:35:09 +0100 Subject: [PATCH] fix(network_info_plus): import original `getgateway.*` from libnatpmp (#1592) --- .../network_info_plus/LICENSE | 32 + .../ios/Classes/FLTNetworkInfoPlusPlugin.m | 2 +- .../ios/Classes/getgateway.c | 618 ++++++++++++++++-- .../ios/Classes/getgateway.h | 56 +- 4 files changed, 639 insertions(+), 69 deletions(-) diff --git a/packages/network_info_plus/network_info_plus/LICENSE b/packages/network_info_plus/network_info_plus/LICENSE index 7b99542029..5e3a9163ed 100644 --- a/packages/network_info_plus/network_info_plus/LICENSE +++ b/packages/network_info_plus/network_info_plus/LICENSE @@ -25,3 +25,35 @@ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +-------------------------------------------------------------------------------- +libnatpmp + +BSD 3-Clause License + +Copyright (c) 2007-2022, Thomas BERNARD +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/packages/network_info_plus/network_info_plus/ios/Classes/FLTNetworkInfoPlusPlugin.m b/packages/network_info_plus/network_info_plus/ios/Classes/FLTNetworkInfoPlusPlugin.m index d6f9c6be23..762662f86f 100644 --- a/packages/network_info_plus/network_info_plus/ios/Classes/FLTNetworkInfoPlusPlugin.m +++ b/packages/network_info_plus/network_info_plus/ios/Classes/FLTNetworkInfoPlusPlugin.m @@ -59,7 +59,7 @@ - (instancetype)initWithNetworkInfoProvider: - (NSString *)getGatewayIP { struct in_addr gatewayAddr; - int gatewayAdressResult = getDefaultGateway(&(gatewayAddr.s_addr)); + int gatewayAdressResult = getdefaultgateway(&(gatewayAddr.s_addr)); if (gatewayAdressResult >= 0) { return [NSString stringWithFormat:@"%s", inet_ntoa(gatewayAddr)]; } else { diff --git a/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.c b/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.c index b7e10c022f..f90b317081 100644 --- a/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.c +++ b/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.c @@ -1,80 +1,582 @@ -// -// getgateway.c -// network_info_plus -// -// Created by Dimitri Dessus on 08/07/2021. -// -// directly cloned from https://stackoverflow.com/a/29440193/5078902 -// thanks to Alex0072005 +/* $Id: getgateway.c,v 1.24 2014/03/31 12:41:35 nanard Exp $ */ +/* libnatpmp +Copyright (c) 2007-2014, Thomas BERNARD +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + * The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +*/ #include +#include +#ifndef _WIN32 #include +#endif +#if !defined(_MSC_VER) +#include +#endif +/* There is no portable method to get the default route gateway. + * So below are four (or five ?) differents functions implementing this. + * Parsing /proc/net/route is for linux. + * sysctl is the way to access such informations on BSD systems. + * Many systems should provide route information through raw PF_ROUTE + * sockets. + * In MS Windows, default gateway is found by looking into the registry + * or by using GetBestRoute(). */ +#ifdef __linux__ +#define USE_PROC_NET_ROUTE +#undef USE_SOCKET_ROUTE +#undef USE_SYSCTL_NET_ROUTE +#endif + +#if defined(BSD) || defined(__FreeBSD_kernel__) +#undef USE_PROC_NET_ROUTE +#define USE_SOCKET_ROUTE +#undef USE_SYSCTL_NET_ROUTE +#endif + +#ifdef __APPLE__ +#undef USE_PROC_NET_ROUTE +#undef USE_SOCKET_ROUTE +#define USE_SYSCTL_NET_ROUTE +#endif + +#if (defined(sun) && defined(__SVR4)) +#undef USE_PROC_NET_ROUTE +#define USE_SOCKET_ROUTE +#undef USE_SYSCTL_NET_ROUTE +#endif + +#ifdef _WIN32 +#undef USE_PROC_NET_ROUTE +#undef USE_SOCKET_ROUTE +#undef USE_SYSCTL_NET_ROUTE +//#define USE_WIN32_CODE +#define USE_WIN32_CODE_2 +#endif + +#ifdef __CYGWIN__ +#undef USE_PROC_NET_ROUTE +#undef USE_SOCKET_ROUTE +#undef USE_SYSCTL_NET_ROUTE +#define USE_WIN32_CODE +#include +#include +#include +#include +#endif + +#ifdef __HAIKU__ +#include +#include +#include +#include +#define USE_HAIKU_CODE +#endif + +#ifdef USE_SYSCTL_NET_ROUTE #include +#include #include +#include +#include +#include "route.h" +#endif +#ifdef USE_SOCKET_ROUTE +#include +#include +#include +#include +#include "route.h" +#endif + +#ifdef USE_WIN32_CODE +#include +#include +#define MAX_KEY_LENGTH 255 +#define MAX_VALUE_LENGTH 16383 +#endif + +#ifdef USE_WIN32_CODE_2 +#include +#include +#include +#endif + #include "getgateway.h" -#include "route.h" -#define TypeEN "en0" +#ifndef _WIN32 +#define SUCCESS (0) +#define FAILED (-1) +#endif -#include -#include +#if defined(USE_PROC_NET_ROUTE) -#define CTL_NET 4 /* network, see socket.h */ +/* + parse /proc/net/route which is as follow : +Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT +wlan0 0001A8C0 00000000 0001 0 0 0 00FFFFFF 0 0 0 +eth0 0000FEA9 00000000 0001 0 0 0 0000FFFF 0 0 0 +wlan0 00000000 0101A8C0 0003 0 0 0 00000000 0 0 0 +eth0 00000000 00000000 0001 0 0 1000 00000000 0 0 0 -#if defined(BSD) || defined(__APPLE__) + One header line, and then one line by route by route table entry. +*/ +int getdefaultgateway(in_addr_t * addr) +{ + unsigned long d, g; + char buf[256]; + int line = 0; + FILE * f; + char * p; + f = fopen("/proc/net/route", "r"); + if(!f) + return FAILED; + while(fgets(buf, sizeof(buf), f)) { + if(line > 0) { /* skip the first line */ + p = buf; + /* skip the interface name */ + while(*p && !isspace(*p)) + p++; + while(*p && isspace(*p)) + p++; + if(sscanf(p, "%lx%lx", &d, &g)==2) { + if(d == 0 && g != 0) { /* default */ + *addr = g; + fclose(f); + return SUCCESS; + } + } + } + line++; + } + /* default route not found ! */ + if(f) + fclose(f); + return FAILED; +} + +#elif defined(USE_SYSCTL_NET_ROUTE) #define ROUNDUP(a) \ -((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) + ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) + +int getdefaultgateway(in_addr_t * addr) +{ +#if 0 + /* net.route.0.inet.dump.0.0 ? */ + int mib[] = {CTL_NET, PF_ROUTE, 0, AF_INET, + NET_RT_DUMP, 0, 0/*tableid*/}; +#endif + /* net.route.0.inet.flags.gateway */ + int mib[] = {CTL_NET, PF_ROUTE, 0, AF_INET, + NET_RT_FLAGS, RTF_GATEWAY}; + size_t l; + char * buf, * p; + struct rt_msghdr * rt; + struct sockaddr * sa; + struct sockaddr * sa_tab[RTAX_MAX]; + int i; + int r = FAILED; + if(sysctl(mib, sizeof(mib)/sizeof(int), 0, &l, 0, 0) < 0) { + return FAILED; + } + if(l>0) { + buf = malloc(l); + if(sysctl(mib, sizeof(mib)/sizeof(int), buf, &l, 0, 0) < 0) { + free(buf); + return FAILED; + } + for(p=buf; prtm_msglen) { + rt = (struct rt_msghdr *)p; + sa = (struct sockaddr *)(rt + 1); + for(i=0; irtm_addrs & (1 << i)) { + sa_tab[i] = sa; + sa = (struct sockaddr *)((char *)sa + ROUNDUP(sa->sa_len)); + } else { + sa_tab[i] = NULL; + } + } + if( ((rt->rtm_addrs & (RTA_DST|RTA_GATEWAY)) == (RTA_DST|RTA_GATEWAY)) + && sa_tab[RTAX_DST]->sa_family == AF_INET + && sa_tab[RTAX_GATEWAY]->sa_family == AF_INET) { + if(((struct sockaddr_in *)sa_tab[RTAX_DST])->sin_addr.s_addr == 0) { + char if_name[IF_NAMESIZE]; + if_indextoname(rt->rtm_index, if_name); + if(strcmp(if_name, "en0") == 0) { + *addr = ((struct sockaddr_in *)(sa_tab[RTAX_GATEWAY]))->sin_addr.s_addr; + r = SUCCESS; + } + } + } + } + free(buf); + } + return r; +} + +#elif defined(USE_SOCKET_ROUTE) + +/* Thanks to Darren Kenny for this code */ +#define NEXTADDR(w, u) \ + if (rtm_addrs & (w)) {\ + l = sizeof(struct sockaddr); memmove(cp, &(u), l); cp += l;\ + } + +#define rtm m_rtmsg.m_rtm + +struct { + struct rt_msghdr m_rtm; + char m_space[512]; +} m_rtmsg; -int getDefaultGateway(in_addr_t * addr) +int getdefaultgateway(in_addr_t *addr) { - int mib[] = {CTL_NET, PF_ROUTE, 0, AF_INET, - NET_RT_FLAGS, RTF_GATEWAY}; - size_t l; - char * buf, * p; - struct rt_msghdr * rt; - struct sockaddr * sa; - struct sockaddr * sa_tab[RTAX_MAX]; - int i; - int r = -1; - if(sysctl(mib, sizeof(mib)/sizeof(int), 0, &l, 0, 0) < 0) { + int s, seq, l, rtm_addrs, i; + pid_t pid; + struct sockaddr so_dst, so_mask; + char *cp = m_rtmsg.m_space; + struct sockaddr *gate = NULL, *sa; + struct rt_msghdr *msg_hdr; + + pid = getpid(); + seq = 0; + rtm_addrs = RTA_DST | RTA_NETMASK; + + memset(&so_dst, 0, sizeof(so_dst)); + memset(&so_mask, 0, sizeof(so_mask)); + memset(&rtm, 0, sizeof(struct rt_msghdr)); + + rtm.rtm_type = RTM_GET; + rtm.rtm_flags = RTF_UP | RTF_GATEWAY; + rtm.rtm_version = RTM_VERSION; + rtm.rtm_seq = ++seq; + rtm.rtm_addrs = rtm_addrs; + + so_dst.sa_family = AF_INET; + so_dst.sa_len = sizeof(struct sockaddr); + so_mask.sa_family = AF_INET; + so_mask.sa_len = sizeof(struct sockaddr); + + NEXTADDR(RTA_DST, so_dst); + NEXTADDR(RTA_NETMASK, so_mask); + + rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; + + s = socket(PF_ROUTE, SOCK_RAW, 0); + + if (write(s, (char *)&m_rtmsg, l) < 0) { + close(s); + return FAILED; + } + + do { + l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); + } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); + + close(s); + + msg_hdr = &rtm; + + cp = ((char *)(msg_hdr + 1)); + if (msg_hdr->rtm_addrs) { + for (i = 1; i; i <<= 1) + if (i & msg_hdr->rtm_addrs) { + sa = (struct sockaddr *)cp; + if (i == RTA_GATEWAY ) + gate = sa; + + cp += sizeof(struct sockaddr); + } + } else { + return FAILED; + } + + + if (gate != NULL ) { + *addr = ((struct sockaddr_in *)gate)->sin_addr.s_addr; + return SUCCESS; + } else { + return FAILED; + } +} + +#elif defined(USE_WIN32_CODE) + +int getdefaultgateway(in_addr_t * addr) +{ + HKEY networkCardsKey; + HKEY networkCardKey; + HKEY interfacesKey; + HKEY interfaceKey; + DWORD i = 0; + DWORD numSubKeys = 0; + TCHAR keyName[MAX_KEY_LENGTH]; + DWORD keyNameLength = MAX_KEY_LENGTH; + TCHAR keyValue[MAX_VALUE_LENGTH]; + DWORD keyValueLength = MAX_VALUE_LENGTH; + DWORD keyValueType = REG_SZ; + TCHAR gatewayValue[MAX_VALUE_LENGTH]; + DWORD gatewayValueLength = MAX_VALUE_LENGTH; + DWORD gatewayValueType = REG_MULTI_SZ; + int done = 0; + + //const char * networkCardsPath = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards"; + //const char * interfacesPath = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces"; +#ifdef UNICODE + LPCTSTR networkCardsPath = L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards"; + LPCTSTR interfacesPath = L"SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces"; +#define STR_SERVICENAME L"ServiceName" +#define STR_DHCPDEFAULTGATEWAY L"DhcpDefaultGateway" +#define STR_DEFAULTGATEWAY L"DefaultGateway" +#else + LPCTSTR networkCardsPath = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards"; + LPCTSTR interfacesPath = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces"; +#define STR_SERVICENAME "ServiceName" +#define STR_DHCPDEFAULTGATEWAY "DhcpDefaultGateway" +#define STR_DEFAULTGATEWAY "DefaultGateway" +#endif + // The windows registry lists its primary network devices in the following location: + // HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards + // + // Each network device has its own subfolder, named with an index, with various properties: + // -NetworkCards + // -5 + // -Description = Broadcom 802.11n Network Adapter + // -ServiceName = {E35A72F8-5065-4097-8DFE-C7790774EE4D} + // -8 + // -Description = Marvell Yukon 88E8058 PCI-E Gigabit Ethernet Controller + // -ServiceName = {86226414-5545-4335-A9D1-5BD7120119AD} + // + // The above service name is the name of a subfolder within: + // HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces + // + // There may be more subfolders in this interfaces path than listed in the network cards path above: + // -Interfaces + // -{3a539854-6a70-11db-887c-806e6f6e6963} + // -DhcpIPAddress = 0.0.0.0 + // -[more] + // -{E35A72F8-5065-4097-8DFE-C7790774EE4D} + // -DhcpIPAddress = 10.0.1.4 + // -DhcpDefaultGateway = 10.0.1.1 + // -[more] + // -{86226414-5545-4335-A9D1-5BD7120119AD} + // -DhcpIpAddress = 10.0.1.5 + // -DhcpDefaultGateay = 10.0.1.1 + // -[more] + // + // In order to extract this information, we enumerate each network card, and extract the ServiceName value. + // This is then used to open the interface subfolder, and attempt to extract a DhcpDefaultGateway value. + // Once one is found, we're done. + // + // It may be possible to simply enumerate the interface folders until we find one with a DhcpDefaultGateway value. + // However, the technique used is the technique most cited on the web, and we assume it to be more correct. + + if(ERROR_SUCCESS != RegOpenKeyEx(HKEY_LOCAL_MACHINE, // Open registry key or predifined key + networkCardsPath, // Name of registry subkey to open + 0, // Reserved - must be zero + KEY_READ, // Mask - desired access rights + &networkCardsKey)) // Pointer to output key + { + // Unable to open network cards keys + return -1; + } + + if(ERROR_SUCCESS != RegOpenKeyEx(HKEY_LOCAL_MACHINE, // Open registry key or predefined key + interfacesPath, // Name of registry subkey to open + 0, // Reserved - must be zero + KEY_READ, // Mask - desired access rights + &interfacesKey)) // Pointer to output key + { + // Unable to open interfaces key + RegCloseKey(networkCardsKey); + return -1; + } + + // Figure out how many subfolders are within the NetworkCards folder + RegQueryInfoKey(networkCardsKey, NULL, NULL, NULL, &numSubKeys, NULL, NULL, NULL, NULL, NULL, NULL, NULL); + + //printf( "Number of subkeys: %u\n", (unsigned int)numSubKeys); + + // Enumrate through each subfolder within the NetworkCards folder + for(i = 0; i < numSubKeys && !done; i++) + { + keyNameLength = MAX_KEY_LENGTH; + if(ERROR_SUCCESS == RegEnumKeyEx(networkCardsKey, // Open registry key + i, // Index of subkey to retrieve + keyName, // Buffer that receives the name of the subkey + &keyNameLength, // Variable that receives the size of the above buffer + NULL, // Reserved - must be NULL + NULL, // Buffer that receives the class string + NULL, // Variable that receives the size of the above buffer + NULL)) // Variable that receives the last write time of subkey + { + if(RegOpenKeyEx(networkCardsKey, keyName, 0, KEY_READ, &networkCardKey) == ERROR_SUCCESS) + { + keyValueLength = MAX_VALUE_LENGTH; + if(ERROR_SUCCESS == RegQueryValueEx(networkCardKey, // Open registry key + STR_SERVICENAME, // Name of key to query + NULL, // Reserved - must be NULL + &keyValueType, // Receives value type + (LPBYTE)keyValue, // Receives value + &keyValueLength)) // Receives value length in bytes + { +// printf("keyValue: %s\n", keyValue); + if(RegOpenKeyEx(interfacesKey, keyValue, 0, KEY_READ, &interfaceKey) == ERROR_SUCCESS) + { + gatewayValueLength = MAX_VALUE_LENGTH; + if(ERROR_SUCCESS == RegQueryValueEx(interfaceKey, // Open registry key + STR_DHCPDEFAULTGATEWAY, // Name of key to query + NULL, // Reserved - must be NULL + &gatewayValueType, // Receives value type + (LPBYTE)gatewayValue, // Receives value + &gatewayValueLength)) // Receives value length in bytes + { + // Check to make sure it's a string + if((gatewayValueType == REG_MULTI_SZ || gatewayValueType == REG_SZ) && (gatewayValueLength > 1)) + { + //printf("gatewayValue: %s\n", gatewayValue); + done = 1; + } + } + else if(ERROR_SUCCESS == RegQueryValueEx(interfaceKey, // Open registry key + STR_DEFAULTGATEWAY, // Name of key to query + NULL, // Reserved - must be NULL + &gatewayValueType, // Receives value type + (LPBYTE)gatewayValue,// Receives value + &gatewayValueLength)) // Receives value length in bytes + { + // Check to make sure it's a string + if((gatewayValueType == REG_MULTI_SZ || gatewayValueType == REG_SZ) && (gatewayValueLength > 1)) + { + //printf("gatewayValue: %s\n", gatewayValue); + done = 1; + } + } + RegCloseKey(interfaceKey); + } + } + RegCloseKey(networkCardKey); + } + } + } + + RegCloseKey(interfacesKey); + RegCloseKey(networkCardsKey); + + if(done) + { +#if UNICODE + char tmp[32]; + for(i = 0; i < 32; i++) { + tmp[i] = (char)gatewayValue[i]; + if(!tmp[i]) + break; + } + tmp[31] = '\0'; + *addr = inet_addr(tmp); +#else + *addr = inet_addr(gatewayValue); +#endif + return 0; + } + + return -1; +} + +#elif defined(USE_WIN32_CODE_2) + +int getdefaultgateway(in_addr_t *addr) +{ + MIB_IPFORWARDROW ip_forward; + memset(&ip_forward, 0, sizeof(ip_forward)); + if(GetBestRoute(inet_addr("0.0.0.0"), 0, &ip_forward) != NO_ERROR) + return -1; + *addr = ip_forward.dwForwardNextHop; + return 0; +} + +#elif defined(USE_HAIKU_CODE) + +int getdefaultgateway(in_addr_t *addr) +{ + int fd, ret = -1; + struct ifconf config; + void *buffer = NULL; + struct ifreq *interface; + + if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { return -1; } - if(l>0) { - buf = malloc(l); - if(sysctl(mib, sizeof(mib)/sizeof(int), buf, &l, 0, 0) < 0) { - return -1; + if (ioctl(fd, SIOCGRTSIZE, &config, sizeof(config)) != 0) { + goto fail; + } + if (config.ifc_value < 1) { + goto fail; /* No routes */ + } + if ((buffer = malloc(config.ifc_value)) == NULL) { + goto fail; + } + config.ifc_len = config.ifc_value; + config.ifc_buf = buffer; + if (ioctl(fd, SIOCGRTTABLE, &config, sizeof(config)) != 0) { + goto fail; + } + for (interface = buffer; + (uint8_t *)interface < (uint8_t *)buffer + config.ifc_len; ) { + struct route_entry route = interface->ifr_route; + int intfSize; + if (route.flags & (RTF_GATEWAY | RTF_DEFAULT)) { + *addr = ((struct sockaddr_in *)route.gateway)->sin_addr.s_addr; + ret = 0; + break; + } + intfSize = sizeof(route) + IF_NAMESIZE; + if (route.destination != NULL) { + intfSize += route.destination->sa_len; } - for(p=buf; prtm_msglen) { - rt = (struct rt_msghdr *)p; - sa = (struct sockaddr *)(rt + 1); - for(i=0; irtm_addrs & (1 << i)) { - sa_tab[i] = sa; - sa = (struct sockaddr *)((char *)sa + ROUNDUP(sa->sa_len)); - } else { - sa_tab[i] = NULL; - } - } - - if( ((rt->rtm_addrs & (RTA_DST|RTA_GATEWAY)) == (RTA_DST|RTA_GATEWAY)) - && sa_tab[RTAX_DST]->sa_family == AF_INET - && sa_tab[RTAX_GATEWAY]->sa_family == AF_INET) { - - - if(((struct sockaddr_in *)sa_tab[RTAX_DST])->sin_addr.s_addr == 0) { - char ifName[128]; - if_indextoname(rt->rtm_index,ifName); - if(strcmp(TypeEN,ifName)==0){ - *addr = ((struct sockaddr_in *)(sa_tab[RTAX_GATEWAY]))->sin_addr.s_addr; - r = 0; - } - } - } + if (route.mask != NULL) { + intfSize += route.mask->sa_len; } - free(buf); + if (route.gateway != NULL) { + intfSize += route.gateway->sa_len; + } + interface = (struct ifreq *)((uint8_t *)interface + intfSize); } - return r; +fail: + free(buffer); + close(fd); + return ret; +} + +#else /* fallback */ + +int getdefaultgateway(in_addr_t * addr) +{ + (void)addr; + return -1; } + #endif diff --git a/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.h b/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.h index b1fec6dd3f..d1600dc448 100644 --- a/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.h +++ b/packages/network_info_plus/network_info_plus/ios/Classes/getgateway.h @@ -1,13 +1,49 @@ -// -// getgateway.h -// network_info_plus -// -// Created by Dimitri Dessus on 08/07/2021. -// +/* $Id: getgateway.h,v 1.7 2013/09/10 20:09:04 nanard Exp $ */ +/* libnatpmp +Copyright (c) 2007-2014, Thomas BERNARD +All rights reserved. -#ifndef getgateway_h -#define getgateway_h +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: -int getDefaultGateway(in_addr_t *addr); + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + * The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. -#endif /* getgateway_h */ +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +*/ +#ifndef __GETGATEWAY_H__ +#define __GETGATEWAY_H__ + +#ifdef _WIN32 +#if !defined(_MSC_VER) || _MSC_VER >= 1600 +#include +#else +typedef unsigned long uint32_t; +typedef unsigned short uint16_t; +#endif +#define in_addr_t uint32_t +#endif +/* #include "declspec.h" */ + +/* getdefaultgateway() : + * return value : + * 0 : success + * -1 : failure */ +/* NATPMP_LIBSPEC */int getdefaultgateway(in_addr_t * addr); + +#endif