mirror of
https://github.com/akuker/RASCSI.git
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41bdcd4aed
* Update logging * Remove duplicate code * Update unit tests * Clean up includes * Merge ProtobufSerializer into protobuf_util namespace * Precompile regex * Add const * Add Split() convenience method, update log level/ID parsing * Move log.h to legacy folder * Elimininate gotos * Fixes for gcc 13 * Update compiler flags * Update default folder handling * Use references instead of pointers * Move code for better encapsulation * Move code * Remove unused method argument * Move device logger * Remove redundant to_string * Rename for consistency * Update handling of protobuf pointers * Simplify protobuf usage * Memory handling update * Add hasher
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator PiSCSI
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// for Raspberry Pi
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//
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// Copyright (C) 2023 Uwe Seimet
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//
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//---------------------------------------------------------------------------
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#include "network_util.h"
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#include <cstring>
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#include <ifaddrs.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <net/if.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <unistd.h>
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using namespace std;
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bool network_util::IsInterfaceUp(const string& interface)
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{
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ifreq ifr = {};
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strncpy(ifr.ifr_name, interface.c_str(), IFNAMSIZ - 1); //NOSONAR Using strncpy is safe
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const int fd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
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if (!ioctl(fd, SIOCGIFFLAGS, &ifr) && (ifr.ifr_flags & IFF_UP)) {
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close(fd);
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return true;
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}
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close(fd);
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return false;
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}
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set<string, less<>> network_util::GetNetworkInterfaces()
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{
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set<string, less<>> network_interfaces;
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#ifdef __linux__
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ifaddrs *addrs;
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getifaddrs(&addrs);
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ifaddrs *tmp = addrs;
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while (tmp) {
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if (const string name = tmp->ifa_name; tmp->ifa_addr && tmp->ifa_addr->sa_family == AF_PACKET &&
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name != "lo" && name != "piscsi_bridge" && !name.starts_with("dummy") && IsInterfaceUp(name)) {
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// Only list interfaces that are up
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network_interfaces.insert(name);
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}
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tmp = tmp->ifa_next;
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}
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freeifaddrs(addrs);
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#endif
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return network_interfaces;
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}
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bool network_util::ResolveHostName(const string& host, sockaddr_in *addr)
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{
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addrinfo hints = {};
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hints.ai_family = AF_INET;
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hints.ai_socktype = SOCK_STREAM;
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if (addrinfo *result; !getaddrinfo(host.c_str(), nullptr, &hints, &result)) {
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*addr = *reinterpret_cast<sockaddr_in *>(result->ai_addr); //NOSONAR bit_cast is not supported by the bullseye compiler
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freeaddrinfo(result);
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return true;
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}
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return false;
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}
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