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Merge branch '1487_GetMACAddress' into 'develop'
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1487 get mac address

See merge request aneto/MARTe2!48
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@aneto0
aneto0 committed May 12, 2023
2 parents 6a3a0c5 + dda2e02 commit dbfc016
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Showing 6 changed files with 307 additions and 212 deletions.
92 changes: 68 additions & 24 deletions Source/Core/FileSystem/L1Portability/Environment/Linux/InternetHost.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -93,10 +93,10 @@ class LocalHostInfo {

/*lint -e{1704} .Justification: The constructor is private because this is a singleton.*/
LocalHostInfo() :
localHostName(static_cast<const char8*>(NULL)),
ipAddress(static_cast<const char8*>(NULL)),
internetAddressInfoInitialised(false),
internalFastSem() {
localHostName(static_cast<const char8*>(NULL)),
ipAddress(static_cast<const char8*>(NULL)),
internetAddressInfoInitialised(false),
internalFastSem() {
Init();
}

Expand All @@ -112,21 +112,30 @@ class LocalHostInfo {

char8 hostname[128];
int32 ret = gethostname(&hostname[0], static_cast<size_t>(128u));
struct hostent *h = static_cast<struct hostent *>(NULL);
struct hostent *h = NULL_PTR(struct hostent *);
if (ret == 0) {
h = gethostbyname(&hostname[0]);
}
if (h != NULL) {
localHostName = strdup(h->h_name);
struct in_addr sin_addr;
char8* addr = h->h_addr_list[0];
if (addr != static_cast<char8 *>(NULL)) {
sin_addr.s_addr = *(reinterpret_cast<uint32 *>(addr));

// Convert the ip number in a dot notation string
ipAddress = strdup(inet_ntoa(sin_addr));
internetAddressInfoInitialised = true;
internalFastSem.FastUnLock();
if (addr != NULL_PTR(char8*)) {
int32 allowedAddresslength = static_cast<int32>(sizeof(int32));
if(h->h_length != allowedAddresslength) {
REPORT_ERROR_STATIC_0(ErrorManagement::FatalError, "LocalHostInfo: Address area not expected. Allowed address length 4");
}
else {
//lint -e{826} Suspicious pointer-to-pointer conversion (area too small). if check the aread of the address
//lint -e{927} allowedAddresslength
uint32 * auxInt32Pointer = reinterpret_cast<uint32 *>(addr);
sin_addr.s_addr = *auxInt32Pointer;

// Convert the ip number in a dot notation string
ipAddress = strdup(inet_ntoa(sin_addr));
internetAddressInfoInitialised = true;
internalFastSem.FastUnLock();
}
}
else {
REPORT_ERROR_STATIC_0(ErrorManagement::FatalError, "LocalHostInfo: Failed local address initialization");
Expand Down Expand Up @@ -185,35 +194,64 @@ uint32 InternetHost::GetLocalAddressAsNumber() {
}
return ret;
}
bool InternetHost::GetMACAddress(const char8 *const interfaceName,
uint8 *const mac) {

struct ifreq s;
bool ret = MemoryOperationsHelper::Set(reinterpret_cast<void*>(&s), static_cast<char8>(0), static_cast<uint32>(sizeof(s)));
//lint -e{641} Converting enum '__socket_type' to 'int. Definition and function outside the MARTe library. SOCK_DGRAM is a int type.
int32 fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
//strcpy(s.ifr_name, interfaceName);
if (ret) {
ret = MemoryOperationsHelper::Copy(reinterpret_cast<void*>(s.ifr_name), interfaceName, static_cast<uint32>(IFNAMSIZ - 1));
}
if (ret) {
ret = 0 == ioctl(fd, static_cast<uint64>(SIOCGIFHWADDR), &s);
}
if (ret) {
int32 i;
for (i = 0; i < 6; ++i) {
uint8 auxChar = static_cast<uint8>(s.ifr_addr.sa_data[i]);
mac[i] = auxChar;
}
}
return ret;
}

InternetAddress InternetHost::ConvertInterfaceNameToInterfaceAddressNumber(const char8* const interfaceName) {
InternetAddress InternetHost::ConvertInterfaceNameToInterfaceAddressNumber(const char8 *const interfaceName) {
int32 fd;
struct ifreq ifr;
bool ret = MemoryOperationsHelper::Set(&ifr, static_cast<char8>(0), static_cast<uint32>(sizeof(ifr)));
InternetAddress retVal = 0u;
//lint -e{641} Converting enum '__socket_type' to 'int. Definition and function outside the MARTe library. SOCK_DGRAM is a int type.
fd = socket(AF_INET, SOCK_DGRAM, 0);
//Type of address to retrieve - IPv4 IP address
ifr.ifr_addr.sa_family = static_cast<uint16>(AF_INET);
//Copy the interface name in the ifreq structure
strncpy(static_cast<char8 *>(ifr.ifr_name), interfaceName, static_cast<size_t>(IFNAMSIZ - 1));
if (ioctl(fd, static_cast<uint64>(SIOCGIFADDR), &ifr) != -1) {
in_addr addr = (reinterpret_cast<struct sockaddr_in*>(&ifr.ifr_addr))->sin_addr;
retVal = addr.s_addr;
if (ret) {
ret = MemoryOperationsHelper::Copy(reinterpret_cast<void*>(ifr.ifr_name), interfaceName, static_cast<uint32>(IFNAMSIZ - 1));
}
if (ret) {
if (ioctl(fd, static_cast<uint64>(SIOCGIFADDR), &ifr) != -1) {
//lint -e{740} Unusual pointer cast (incompatible indirect types) [MISRA C++ Rule 5-2-6], [MISRA C++ Rule 5-2-7]
in_addr addr = (reinterpret_cast<struct sockaddr_in*>(&ifr.ifr_addr))->sin_addr;
retVal = addr.s_addr;
}
}
close(fd);

return retVal;
}

StreamString InternetHost::ConvertInterfaceNameToInterfaceAddress(const char8* const interfaceName) {
StreamString InternetHost::ConvertInterfaceNameToInterfaceAddress(const char8 *const interfaceName) {
in_addr aux;
aux.s_addr = ConvertInterfaceNameToInterfaceAddressNumber(interfaceName);
StreamString dotName(inet_ntoa(aux));
return dotName;
}

InternetHost::InternetHost(const uint16 port,
const char8 * const addr) {
const char8 *const addr) {
mreq.imr_interface.s_addr = htonl(static_cast<in_addr_t>(0x00000000)); //INADDR_ANY
mreq.imr_multiaddr.s_addr = static_cast<uint32>(0);
address.sin_family = static_cast<uint16>(AF_INET);
Expand Down Expand Up @@ -242,7 +280,7 @@ void InternetHost::SetPort(const uint16 port) {
address.sin_port = htons(port);
}

bool InternetHost::SetAddress(const char8 * const addr) {
bool InternetHost::SetAddress(const char8 *const addr) {
/*lint -e{1924} [MISRA C++ Rule 5-2-4]. Justification: The C-style cast is made by the operating system API.*/
address.sin_addr.s_addr = INADDR_ANY;
bool ret = (addr != NULL);
Expand Down Expand Up @@ -271,8 +309,14 @@ bool InternetHost::SetAddressByHostName(const char8 *hostName) {
struct hostent *h = gethostbyname(hostName);

if (h != NULL) {
address.sin_addr.s_addr = *(reinterpret_cast<uint32 *>(h->h_addr_list[0]));
ret = true;
if(h->h_length == 4){
//lint -e{826} Suspicious pointer-to-pointer conversion (area too small). If ensure same size.
//lint -e{927} cast from pointer to pointer [MISRA C++ Rule 5-2-7]. Size are guaranteed.
address.sin_addr.s_addr = *(reinterpret_cast<uint32 *>(h->h_addr_list[0]));
ret = true;
}else{
ret = false;
}
}
else {
REPORT_ERROR_STATIC_0(ErrorManagement::OSError, "InternetHost: Failed gethostbyname()");
Expand All @@ -289,11 +333,11 @@ bool InternetHost::SetLocalAddress() {
return SetAddressByHostName(static_cast<const char8*>(NULL));
}

void InternetHost::SetMulticastGroup(const char8 * const addr) {
void InternetHost::SetMulticastGroup(const char8 *const addr) {
mreq.imr_multiaddr.s_addr = inet_addr(const_cast<char8*>(addr));
}

void InternetHost::SetMulticastInterfaceAddress(const char8 * const addr) {
void InternetHost::SetMulticastInterfaceAddress(const char8 *const addr) {
mreq.imr_interface.s_addr = inet_addr(const_cast<char8*>(addr));
}

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