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added Socket::setRecvPktinfo()

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This commit is contained in:
hyung-hwan 2021-08-19 06:03:34 +00:00
parent 3643c98241
commit dfd51e44f3
2 changed files with 98 additions and 3 deletions
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2
qse/include/qse/si/Socket.hpp
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@ -83,6 +83,7 @@ public:
int setTcpNodelay (int n) QSE_CPP_NOEXCEPT;
int setOobInline (int n) QSE_CPP_NOEXCEPT;
int setIpv6Only (int n) QSE_CPP_NOEXCEPT;
int setRecvPktinfo (int n) QSE_CPP_NOEXCEPT;
int setNonBlock (int n) QSE_CPP_NOEXCEPT;
// --------------------------------------------------------------------
@ -130,6 +131,7 @@ public:
qse_ssize_t receive (void* buf, qse_size_t len) QSE_CPP_NOEXCEPT;
qse_ssize_t receive (void* buf, qse_size_t len, SocketAddress& srcaddr) QSE_CPP_NOEXCEPT;
qse_ssize_t receive (void* buf, qse_size_t len, SocketAddress& srcaddr, int& ifindex) QSE_CPP_NOEXCEPT;
// --------------------------------------------------------------------

97
qse/lib/si/Socket.cpp
View File

@ -291,13 +291,38 @@ int Socket::setOobInline (int n) QSE_CPP_NOEXCEPT
int Socket::setIpv6Only (int n) QSE_CPP_NOEXCEPT
{
#if defined(IPV6_V6ONLY)
if (this->getDomain() == AF_INET6)
return this->setOption(IPPROTO_IPV6, IPV6_V6ONLY, (char*)&n, QSE_SIZEOF(n));
#else
#endif
this->setErrorNumber (E_ENOIMPL);
return -1;
#endif
}
int Socket::setRecvPktinfo (int n) QSE_CPP_NOEXCEPT
{
switch (this->getDomain())
{
#if defined(IP_PKTINFO)
case AF_INET:
return this->setOption(IPPROTO_IP, IP_PKTINFO, (char*)&n, QSE_SIZEOF(n));
#endif
#if defined(AF_INET6) && defined(IPV6_RECVPKTINFO)
case AF_INET6:
return this->setOption(IPPROTO_IPV6, IPV6_RECVPKTINFO, (char*)&n, QSE_SIZEOF(n));
break;
#endif
default:
break;
}
this->setErrorNumber (E_ENOIMPL);
return -1;
}
int Socket::setNonBlock (int n) QSE_CPP_NOEXCEPT
{
QSE_ASSERT (qse_is_sck_valid(this->handle));
@ -984,6 +1009,74 @@ qse_ssize_t Socket::receive (void* buf, qse_size_t len, SocketAddress& srcaddr)
return n;
}
qse_ssize_t Socket::receive (void* buf, qse_size_t len, SocketAddress& srcaddr, int& ifindex) QSE_CPP_NOEXCEPT
{
QSE_ASSERT (qse_is_sck_valid(this->handle));
switch (this->getDomain())
{
case AF_INET:
{
break;
}
#if defined(AF_INET6)
case AF_INET6:
{
ssize_t n;
struct msghdr msg;
struct cmsghdr* cmsg;
union
{
struct cmsghdr cmsg;
qse_uint8_t buf[CMSG_SPACE(QSE_SIZEOF(struct in6_pktinfo))];
} c;
struct iovec iov;
struct sockaddr_in6 from;
QSE_MEMSET (&msg, 0, QSE_SIZEOF(msg));
msg.msg_control = c.buf;
msg.msg_controllen = QSE_SIZEOF(c);
msg.msg_flags = 0;
msg.msg_name = &from;
msg.msg_namelen = QSE_SIZEOF(from);
iov.iov_base = buf;
iov.iov_len = len;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
n = ::recvmsg(this->handle, &msg, 0);
if (n == -1)
{
this->setErrorFmt (syserr_to_errnum(errno), QSE_T("%hs"), strerror(errno));
return -1;
}
ifindex = 0; // not known yet
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
{
if (cmsg->cmsg_level == IPPROTO_IPV6 && cmsg->cmsg_type == IPV6_PKTINFO)
{
struct in6_pktinfo* pi;
pi = (struct in6_pktinfo*)CMSG_DATA(cmsg);
ifindex = pi->ipi6_ifindex;
break;
}
}
srcaddr.set ((const qse_skad_t*)&from);
return n;
}
#endif
}
this->setErrorFmt (E_ENOIMPL, QSE_T("unsupported socket domain"), strerror(errno));
return -1;
}
int Socket::joinMulticastGroup (const SocketAddress& mcaddr, const SocketAddress& ifaddr) QSE_CPP_NOEXCEPT
{
int family = mcaddr.getFamily(); // ((struct sockaddr*)mcaddr.getAddrPtr())->sa_family