diff options
author | 2016-10-07 14:14:08 +0200 | |
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committer | 2016-10-07 14:14:08 +0200 | |
commit | 85f4741fcf642f52ac4fa56f0aff1728727c901b (patch) | |
tree | da8cca02913839152d2eb04c0e85a83018bcaed3 /3rdparty/libuv/src/win/udp.c | |
parent | ff01b716711b97c2fcaa709ea97f7650f106aa10 (diff) |
Remove libuv library (nw)
Diffstat (limited to '3rdparty/libuv/src/win/udp.c')
-rw-r--r-- | 3rdparty/libuv/src/win/udp.c | 926 |
1 files changed, 0 insertions, 926 deletions
diff --git a/3rdparty/libuv/src/win/udp.c b/3rdparty/libuv/src/win/udp.c deleted file mode 100644 index 24792ec067e..00000000000 --- a/3rdparty/libuv/src/win/udp.c +++ /dev/null @@ -1,926 +0,0 @@ -/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ - -#include <assert.h> -#include <stdlib.h> - -#include "uv.h" -#include "internal.h" -#include "handle-inl.h" -#include "stream-inl.h" -#include "req-inl.h" - - -/* - * Threshold of active udp streams for which to preallocate udp read buffers. - */ -const unsigned int uv_active_udp_streams_threshold = 0; - -/* A zero-size buffer for use by uv_udp_read */ -static char uv_zero_[] = ""; - -int uv_udp_getsockname(const uv_udp_t* handle, - struct sockaddr* name, - int* namelen) { - int result; - - if (handle->socket == INVALID_SOCKET) { - return UV_EINVAL; - } - - result = getsockname(handle->socket, name, namelen); - if (result != 0) { - return uv_translate_sys_error(WSAGetLastError()); - } - - return 0; -} - - -static int uv_udp_set_socket(uv_loop_t* loop, uv_udp_t* handle, SOCKET socket, - int family) { - DWORD yes = 1; - WSAPROTOCOL_INFOW info; - int opt_len; - - if (handle->socket != INVALID_SOCKET) - return UV_EBUSY; - - /* Set the socket to nonblocking mode */ - if (ioctlsocket(socket, FIONBIO, &yes) == SOCKET_ERROR) { - return WSAGetLastError(); - } - - /* Make the socket non-inheritable */ - if (!SetHandleInformation((HANDLE)socket, HANDLE_FLAG_INHERIT, 0)) { - return GetLastError(); - } - - /* Associate it with the I/O completion port. */ - /* Use uv_handle_t pointer as completion key. */ - if (CreateIoCompletionPort((HANDLE)socket, - loop->iocp, - (ULONG_PTR)socket, - 0) == NULL) { - return GetLastError(); - } - - if (pSetFileCompletionNotificationModes) { - /* All known Windows that support SetFileCompletionNotificationModes */ - /* have a bug that makes it impossible to use this function in */ - /* conjunction with datagram sockets. We can work around that but only */ - /* if the user is using the default UDP driver (AFD) and has no other */ - /* LSPs stacked on top. Here we check whether that is the case. */ - opt_len = (int) sizeof info; - if (getsockopt(socket, - SOL_SOCKET, - SO_PROTOCOL_INFOW, - (char*) &info, - &opt_len) == SOCKET_ERROR) { - return GetLastError(); - } - - if (info.ProtocolChain.ChainLen == 1) { - if (pSetFileCompletionNotificationModes((HANDLE)socket, - FILE_SKIP_SET_EVENT_ON_HANDLE | - FILE_SKIP_COMPLETION_PORT_ON_SUCCESS)) { - handle->flags |= UV_HANDLE_SYNC_BYPASS_IOCP; - handle->func_wsarecv = uv_wsarecv_workaround; - handle->func_wsarecvfrom = uv_wsarecvfrom_workaround; - } else if (GetLastError() != ERROR_INVALID_FUNCTION) { - return GetLastError(); - } - } - } - - handle->socket = socket; - - if (family == AF_INET6) { - handle->flags |= UV_HANDLE_IPV6; - } else { - assert(!(handle->flags & UV_HANDLE_IPV6)); - } - - return 0; -} - - -int uv_udp_init_ex(uv_loop_t* loop, uv_udp_t* handle, unsigned int flags) { - int domain; - - /* Use the lower 8 bits for the domain */ - domain = flags & 0xFF; - if (domain != AF_INET && domain != AF_INET6 && domain != AF_UNSPEC) - return UV_EINVAL; - - if (flags & ~0xFF) - return UV_EINVAL; - - uv__handle_init(loop, (uv_handle_t*) handle, UV_UDP); - handle->socket = INVALID_SOCKET; - handle->reqs_pending = 0; - handle->activecnt = 0; - handle->func_wsarecv = WSARecv; - handle->func_wsarecvfrom = WSARecvFrom; - handle->send_queue_size = 0; - handle->send_queue_count = 0; - uv_req_init(loop, (uv_req_t*) &(handle->recv_req)); - handle->recv_req.type = UV_UDP_RECV; - handle->recv_req.data = handle; - - /* If anything fails beyond this point we need to remove the handle from - * the handle queue, since it was added by uv__handle_init. - */ - - if (domain != AF_UNSPEC) { - SOCKET sock; - DWORD err; - - sock = socket(domain, SOCK_DGRAM, 0); - if (sock == INVALID_SOCKET) { - err = WSAGetLastError(); - QUEUE_REMOVE(&handle->handle_queue); - return uv_translate_sys_error(err); - } - - err = uv_udp_set_socket(handle->loop, handle, sock, domain); - if (err) { - closesocket(sock); - QUEUE_REMOVE(&handle->handle_queue); - return uv_translate_sys_error(err); - } - } - - return 0; -} - - -int uv_udp_init(uv_loop_t* loop, uv_udp_t* handle) { - return uv_udp_init_ex(loop, handle, AF_UNSPEC); -} - - -void uv_udp_close(uv_loop_t* loop, uv_udp_t* handle) { - uv_udp_recv_stop(handle); - closesocket(handle->socket); - handle->socket = INVALID_SOCKET; - - uv__handle_closing(handle); - - if (handle->reqs_pending == 0) { - uv_want_endgame(loop, (uv_handle_t*) handle); - } -} - - -void uv_udp_endgame(uv_loop_t* loop, uv_udp_t* handle) { - if (handle->flags & UV__HANDLE_CLOSING && - handle->reqs_pending == 0) { - assert(!(handle->flags & UV_HANDLE_CLOSED)); - uv__handle_close(handle); - } -} - - -static int uv_udp_maybe_bind(uv_udp_t* handle, - const struct sockaddr* addr, - unsigned int addrlen, - unsigned int flags) { - int r; - int err; - DWORD no = 0; - - if (handle->flags & UV_HANDLE_BOUND) - return 0; - - if ((flags & UV_UDP_IPV6ONLY) && addr->sa_family != AF_INET6) { - /* UV_UDP_IPV6ONLY is supported only for IPV6 sockets */ - return ERROR_INVALID_PARAMETER; - } - - if (handle->socket == INVALID_SOCKET) { - SOCKET sock = socket(addr->sa_family, SOCK_DGRAM, 0); - if (sock == INVALID_SOCKET) { - return WSAGetLastError(); - } - - err = uv_udp_set_socket(handle->loop, handle, sock, addr->sa_family); - if (err) { - closesocket(sock); - return err; - } - } - - if (flags & UV_UDP_REUSEADDR) { - DWORD yes = 1; - /* Set SO_REUSEADDR on the socket. */ - if (setsockopt(handle->socket, - SOL_SOCKET, - SO_REUSEADDR, - (char*) &yes, - sizeof yes) == SOCKET_ERROR) { - err = WSAGetLastError(); - return err; - } - } - - if (addr->sa_family == AF_INET6) - handle->flags |= UV_HANDLE_IPV6; - - if (addr->sa_family == AF_INET6 && !(flags & UV_UDP_IPV6ONLY)) { - /* On windows IPV6ONLY is on by default. */ - /* If the user doesn't specify it libuv turns it off. */ - - /* TODO: how to handle errors? This may fail if there is no ipv4 stack */ - /* available, or when run on XP/2003 which have no support for dualstack */ - /* sockets. For now we're silently ignoring the error. */ - setsockopt(handle->socket, - IPPROTO_IPV6, - IPV6_V6ONLY, - (char*) &no, - sizeof no); - } - - r = bind(handle->socket, addr, addrlen); - if (r == SOCKET_ERROR) { - return WSAGetLastError(); - } - - handle->flags |= UV_HANDLE_BOUND; - - return 0; -} - - -static void uv_udp_queue_recv(uv_loop_t* loop, uv_udp_t* handle) { - uv_req_t* req; - uv_buf_t buf; - DWORD bytes, flags; - int result; - - assert(handle->flags & UV_HANDLE_READING); - assert(!(handle->flags & UV_HANDLE_READ_PENDING)); - - req = &handle->recv_req; - memset(&req->u.io.overlapped, 0, sizeof(req->u.io.overlapped)); - - /* - * Preallocate a read buffer if the number of active streams is below - * the threshold. - */ - if (loop->active_udp_streams < uv_active_udp_streams_threshold) { - handle->flags &= ~UV_HANDLE_ZERO_READ; - - handle->alloc_cb((uv_handle_t*) handle, 65536, &handle->recv_buffer); - if (handle->recv_buffer.len == 0) { - handle->recv_cb(handle, UV_ENOBUFS, &handle->recv_buffer, NULL, 0); - return; - } - assert(handle->recv_buffer.base != NULL); - - buf = handle->recv_buffer; - memset(&handle->recv_from, 0, sizeof handle->recv_from); - handle->recv_from_len = sizeof handle->recv_from; - flags = 0; - - result = handle->func_wsarecvfrom(handle->socket, - (WSABUF*) &buf, - 1, - &bytes, - &flags, - (struct sockaddr*) &handle->recv_from, - &handle->recv_from_len, - &req->u.io.overlapped, - NULL); - - if (UV_SUCCEEDED_WITHOUT_IOCP(result == 0)) { - /* Process the req without IOCP. */ - handle->flags |= UV_HANDLE_READ_PENDING; - req->u.io.overlapped.InternalHigh = bytes; - handle->reqs_pending++; - uv_insert_pending_req(loop, req); - } else if (UV_SUCCEEDED_WITH_IOCP(result == 0)) { - /* The req will be processed with IOCP. */ - handle->flags |= UV_HANDLE_READ_PENDING; - handle->reqs_pending++; - } else { - /* Make this req pending reporting an error. */ - SET_REQ_ERROR(req, WSAGetLastError()); - uv_insert_pending_req(loop, req); - handle->reqs_pending++; - } - - } else { - handle->flags |= UV_HANDLE_ZERO_READ; - - buf.base = (char*) uv_zero_; - buf.len = 0; - flags = MSG_PEEK; - - result = handle->func_wsarecv(handle->socket, - (WSABUF*) &buf, - 1, - &bytes, - &flags, - &req->u.io.overlapped, - NULL); - - if (UV_SUCCEEDED_WITHOUT_IOCP(result == 0)) { - /* Process the req without IOCP. */ - handle->flags |= UV_HANDLE_READ_PENDING; - req->u.io.overlapped.InternalHigh = bytes; - handle->reqs_pending++; - uv_insert_pending_req(loop, req); - } else if (UV_SUCCEEDED_WITH_IOCP(result == 0)) { - /* The req will be processed with IOCP. */ - handle->flags |= UV_HANDLE_READ_PENDING; - handle->reqs_pending++; - } else { - /* Make this req pending reporting an error. */ - SET_REQ_ERROR(req, WSAGetLastError()); - uv_insert_pending_req(loop, req); - handle->reqs_pending++; - } - } -} - - -int uv__udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloc_cb, - uv_udp_recv_cb recv_cb) { - uv_loop_t* loop = handle->loop; - int err; - - if (handle->flags & UV_HANDLE_READING) { - return WSAEALREADY; - } - - err = uv_udp_maybe_bind(handle, - (const struct sockaddr*) &uv_addr_ip4_any_, - sizeof(uv_addr_ip4_any_), - 0); - if (err) - return err; - - handle->flags |= UV_HANDLE_READING; - INCREASE_ACTIVE_COUNT(loop, handle); - loop->active_udp_streams++; - - handle->recv_cb = recv_cb; - handle->alloc_cb = alloc_cb; - - /* If reading was stopped and then started again, there could still be a */ - /* recv request pending. */ - if (!(handle->flags & UV_HANDLE_READ_PENDING)) - uv_udp_queue_recv(loop, handle); - - return 0; -} - - -int uv__udp_recv_stop(uv_udp_t* handle) { - if (handle->flags & UV_HANDLE_READING) { - handle->flags &= ~UV_HANDLE_READING; - handle->loop->active_udp_streams--; - DECREASE_ACTIVE_COUNT(loop, handle); - } - - return 0; -} - - -static int uv__send(uv_udp_send_t* req, - uv_udp_t* handle, - const uv_buf_t bufs[], - unsigned int nbufs, - const struct sockaddr* addr, - unsigned int addrlen, - uv_udp_send_cb cb) { - uv_loop_t* loop = handle->loop; - DWORD result, bytes; - - uv_req_init(loop, (uv_req_t*) req); - req->type = UV_UDP_SEND; - req->handle = handle; - req->cb = cb; - memset(&req->u.io.overlapped, 0, sizeof(req->u.io.overlapped)); - - result = WSASendTo(handle->socket, - (WSABUF*)bufs, - nbufs, - &bytes, - 0, - addr, - addrlen, - &req->u.io.overlapped, - NULL); - - if (UV_SUCCEEDED_WITHOUT_IOCP(result == 0)) { - /* Request completed immediately. */ - req->u.io.queued_bytes = 0; - handle->reqs_pending++; - handle->send_queue_size += req->u.io.queued_bytes; - handle->send_queue_count++; - REGISTER_HANDLE_REQ(loop, handle, req); - uv_insert_pending_req(loop, (uv_req_t*)req); - } else if (UV_SUCCEEDED_WITH_IOCP(result == 0)) { - /* Request queued by the kernel. */ - req->u.io.queued_bytes = uv__count_bufs(bufs, nbufs); - handle->reqs_pending++; - handle->send_queue_size += req->u.io.queued_bytes; - handle->send_queue_count++; - REGISTER_HANDLE_REQ(loop, handle, req); - } else { - /* Send failed due to an error. */ - return WSAGetLastError(); - } - - return 0; -} - - -void uv_process_udp_recv_req(uv_loop_t* loop, uv_udp_t* handle, - uv_req_t* req) { - uv_buf_t buf; - int partial; - - assert(handle->type == UV_UDP); - - handle->flags &= ~UV_HANDLE_READ_PENDING; - - if (!REQ_SUCCESS(req)) { - DWORD err = GET_REQ_SOCK_ERROR(req); - if (err == WSAEMSGSIZE) { - /* Not a real error, it just indicates that the received packet */ - /* was bigger than the receive buffer. */ - } else if (err == WSAECONNRESET || err == WSAENETRESET) { - /* A previous sendto operation failed; ignore this error. If */ - /* zero-reading we need to call WSARecv/WSARecvFrom _without_ the */ - /* MSG_PEEK flag to clear out the error queue. For nonzero reads, */ - /* immediately queue a new receive. */ - if (!(handle->flags & UV_HANDLE_ZERO_READ)) { - goto done; - } - } else { - /* A real error occurred. Report the error to the user only if we're */ - /* currently reading. */ - if (handle->flags & UV_HANDLE_READING) { - uv_udp_recv_stop(handle); - buf = (handle->flags & UV_HANDLE_ZERO_READ) ? - uv_buf_init(NULL, 0) : handle->recv_buffer; - handle->recv_cb(handle, uv_translate_sys_error(err), &buf, NULL, 0); - } - goto done; - } - } - - if (!(handle->flags & UV_HANDLE_ZERO_READ)) { - /* Successful read */ - partial = !REQ_SUCCESS(req); - handle->recv_cb(handle, - req->u.io.overlapped.InternalHigh, - &handle->recv_buffer, - (const struct sockaddr*) &handle->recv_from, - partial ? UV_UDP_PARTIAL : 0); - } else if (handle->flags & UV_HANDLE_READING) { - DWORD bytes, err, flags; - struct sockaddr_storage from; - int from_len; - - /* Do a nonblocking receive */ - /* TODO: try to read multiple datagrams at once. FIONREAD maybe? */ - handle->alloc_cb((uv_handle_t*) handle, 65536, &buf); - if (buf.len == 0) { - handle->recv_cb(handle, UV_ENOBUFS, &buf, NULL, 0); - goto done; - } - assert(buf.base != NULL); - - memset(&from, 0, sizeof from); - from_len = sizeof from; - - flags = 0; - - if (WSARecvFrom(handle->socket, - (WSABUF*)&buf, - 1, - &bytes, - &flags, - (struct sockaddr*) &from, - &from_len, - NULL, - NULL) != SOCKET_ERROR) { - - /* Message received */ - handle->recv_cb(handle, bytes, &buf, (const struct sockaddr*) &from, 0); - } else { - err = WSAGetLastError(); - if (err == WSAEMSGSIZE) { - /* Message truncated */ - handle->recv_cb(handle, - bytes, - &buf, - (const struct sockaddr*) &from, - UV_UDP_PARTIAL); - } else if (err == WSAEWOULDBLOCK) { - /* Kernel buffer empty */ - handle->recv_cb(handle, 0, &buf, NULL, 0); - } else if (err == WSAECONNRESET || err == WSAENETRESET) { - /* WSAECONNRESET/WSANETRESET is ignored because this just indicates - * that a previous sendto operation failed. - */ - handle->recv_cb(handle, 0, &buf, NULL, 0); - } else { - /* Any other error that we want to report back to the user. */ - uv_udp_recv_stop(handle); - handle->recv_cb(handle, uv_translate_sys_error(err), &buf, NULL, 0); - } - } - } - -done: - /* Post another read if still reading and not closing. */ - if ((handle->flags & UV_HANDLE_READING) && - !(handle->flags & UV_HANDLE_READ_PENDING)) { - uv_udp_queue_recv(loop, handle); - } - - DECREASE_PENDING_REQ_COUNT(handle); -} - - -void uv_process_udp_send_req(uv_loop_t* loop, uv_udp_t* handle, - uv_udp_send_t* req) { - int err; - - assert(handle->type == UV_UDP); - - assert(handle->send_queue_size >= req->u.io.queued_bytes); - assert(handle->send_queue_count >= 1); - handle->send_queue_size -= req->u.io.queued_bytes; - handle->send_queue_count--; - - UNREGISTER_HANDLE_REQ(loop, handle, req); - - if (req->cb) { - err = 0; - if (!REQ_SUCCESS(req)) { - err = GET_REQ_SOCK_ERROR(req); - } - req->cb(req, uv_translate_sys_error(err)); - } - - DECREASE_PENDING_REQ_COUNT(handle); -} - - -static int uv__udp_set_membership4(uv_udp_t* handle, - const struct sockaddr_in* multicast_addr, - const char* interface_addr, - uv_membership membership) { - int err; - int optname; - struct ip_mreq mreq; - - if (handle->flags & UV_HANDLE_IPV6) - return UV_EINVAL; - - /* If the socket is unbound, bind to inaddr_any. */ - err = uv_udp_maybe_bind(handle, - (const struct sockaddr*) &uv_addr_ip4_any_, - sizeof(uv_addr_ip4_any_), - UV_UDP_REUSEADDR); - if (err) - return uv_translate_sys_error(err); - - memset(&mreq, 0, sizeof mreq); - - if (interface_addr) { - err = uv_inet_pton(AF_INET, interface_addr, &mreq.imr_interface.s_addr); - if (err) - return err; - } else { - mreq.imr_interface.s_addr = htonl(INADDR_ANY); - } - - mreq.imr_multiaddr.s_addr = multicast_addr->sin_addr.s_addr; - - switch (membership) { - case UV_JOIN_GROUP: - optname = IP_ADD_MEMBERSHIP; - break; - case UV_LEAVE_GROUP: - optname = IP_DROP_MEMBERSHIP; - break; - default: - return UV_EINVAL; - } - - if (setsockopt(handle->socket, - IPPROTO_IP, - optname, - (char*) &mreq, - sizeof mreq) == SOCKET_ERROR) { - return uv_translate_sys_error(WSAGetLastError()); - } - - return 0; -} - - -int uv__udp_set_membership6(uv_udp_t* handle, - const struct sockaddr_in6* multicast_addr, - const char* interface_addr, - uv_membership membership) { - int optname; - int err; - struct ipv6_mreq mreq; - struct sockaddr_in6 addr6; - - if ((handle->flags & UV_HANDLE_BOUND) && !(handle->flags & UV_HANDLE_IPV6)) - return UV_EINVAL; - - err = uv_udp_maybe_bind(handle, - (const struct sockaddr*) &uv_addr_ip6_any_, - sizeof(uv_addr_ip6_any_), - UV_UDP_REUSEADDR); - - if (err) - return uv_translate_sys_error(err); - - memset(&mreq, 0, sizeof(mreq)); - - if (interface_addr) { - if (uv_ip6_addr(interface_addr, 0, &addr6)) - return UV_EINVAL; - mreq.ipv6mr_interface = addr6.sin6_scope_id; - } else { - mreq.ipv6mr_interface = 0; - } - - mreq.ipv6mr_multiaddr = multicast_addr->sin6_addr; - - switch (membership) { - case UV_JOIN_GROUP: - optname = IPV6_ADD_MEMBERSHIP; - break; - case UV_LEAVE_GROUP: - optname = IPV6_DROP_MEMBERSHIP; - break; - default: - return UV_EINVAL; - } - - if (setsockopt(handle->socket, - IPPROTO_IPV6, - optname, - (char*) &mreq, - sizeof mreq) == SOCKET_ERROR) { - return uv_translate_sys_error(WSAGetLastError()); - } - - return 0; -} - - -int uv_udp_set_membership(uv_udp_t* handle, - const char* multicast_addr, - const char* interface_addr, - uv_membership membership) { - struct sockaddr_in addr4; - struct sockaddr_in6 addr6; - - if (uv_ip4_addr(multicast_addr, 0, &addr4) == 0) - return uv__udp_set_membership4(handle, &addr4, interface_addr, membership); - else if (uv_ip6_addr(multicast_addr, 0, &addr6) == 0) - return uv__udp_set_membership6(handle, &addr6, interface_addr, membership); - else - return UV_EINVAL; -} - - -int uv_udp_set_multicast_interface(uv_udp_t* handle, const char* interface_addr) { - struct sockaddr_storage addr_st; - struct sockaddr_in* addr4; - struct sockaddr_in6* addr6; - - addr4 = (struct sockaddr_in*) &addr_st; - addr6 = (struct sockaddr_in6*) &addr_st; - - if (!interface_addr) { - memset(&addr_st, 0, sizeof addr_st); - if (handle->flags & UV_HANDLE_IPV6) { - addr_st.ss_family = AF_INET6; - addr6->sin6_scope_id = 0; - } else { - addr_st.ss_family = AF_INET; - addr4->sin_addr.s_addr = htonl(INADDR_ANY); - } - } else if (uv_ip4_addr(interface_addr, 0, addr4) == 0) { - /* nothing, address was parsed */ - } else if (uv_ip6_addr(interface_addr, 0, addr6) == 0) { - /* nothing, address was parsed */ - } else { - return UV_EINVAL; - } - - if (!(handle->flags & UV_HANDLE_BOUND)) - return UV_EBADF; - - if (addr_st.ss_family == AF_INET) { - if (setsockopt(handle->socket, - IPPROTO_IP, - IP_MULTICAST_IF, - (char*) &addr4->sin_addr, - sizeof(addr4->sin_addr)) == SOCKET_ERROR) { - return uv_translate_sys_error(WSAGetLastError()); - } - } else if (addr_st.ss_family == AF_INET6) { - if (setsockopt(handle->socket, - IPPROTO_IPV6, - IPV6_MULTICAST_IF, - (char*) &addr6->sin6_scope_id, - sizeof(addr6->sin6_scope_id)) == SOCKET_ERROR) { - return uv_translate_sys_error(WSAGetLastError()); - } - } else { - assert(0 && "unexpected address family"); - abort(); - } - - return 0; -} - - -int uv_udp_set_broadcast(uv_udp_t* handle, int value) { - BOOL optval = (BOOL) value; - - if (!(handle->flags & UV_HANDLE_BOUND)) - return UV_EBADF; - - if (setsockopt(handle->socket, - SOL_SOCKET, - SO_BROADCAST, - (char*) &optval, - sizeof optval)) { - return uv_translate_sys_error(WSAGetLastError()); - } - - return 0; -} - - -int uv_udp_open(uv_udp_t* handle, uv_os_sock_t sock) { - WSAPROTOCOL_INFOW protocol_info; - int opt_len; - int err; - - /* Detect the address family of the socket. */ - opt_len = (int) sizeof protocol_info; - if (getsockopt(sock, - SOL_SOCKET, - SO_PROTOCOL_INFOW, - (char*) &protocol_info, - &opt_len) == SOCKET_ERROR) { - return uv_translate_sys_error(GetLastError()); - } - - err = uv_udp_set_socket(handle->loop, - handle, - sock, - protocol_info.iAddressFamily); - return uv_translate_sys_error(err); -} - - -#define SOCKOPT_SETTER(name, option4, option6, validate) \ - int uv_udp_set_##name(uv_udp_t* handle, int value) { \ - DWORD optval = (DWORD) value; \ - \ - if (!(validate(value))) { \ - return UV_EINVAL; \ - } \ - \ - if (!(handle->flags & UV_HANDLE_BOUND)) \ - return UV_EBADF; \ - \ - if (!(handle->flags & UV_HANDLE_IPV6)) { \ - /* Set IPv4 socket option */ \ - if (setsockopt(handle->socket, \ - IPPROTO_IP, \ - option4, \ - (char*) &optval, \ - sizeof optval)) { \ - return uv_translate_sys_error(WSAGetLastError()); \ - } \ - } else { \ - /* Set IPv6 socket option */ \ - if (setsockopt(handle->socket, \ - IPPROTO_IPV6, \ - option6, \ - (char*) &optval, \ - sizeof optval)) { \ - return uv_translate_sys_error(WSAGetLastError()); \ - } \ - } \ - return 0; \ - } - -#define VALIDATE_TTL(value) ((value) >= 1 && (value) <= 255) -#define VALIDATE_MULTICAST_TTL(value) ((value) >= -1 && (value) <= 255) -#define VALIDATE_MULTICAST_LOOP(value) (1) - -SOCKOPT_SETTER(ttl, - IP_TTL, - IPV6_HOPLIMIT, - VALIDATE_TTL) -SOCKOPT_SETTER(multicast_ttl, - IP_MULTICAST_TTL, - IPV6_MULTICAST_HOPS, - VALIDATE_MULTICAST_TTL) -SOCKOPT_SETTER(multicast_loop, - IP_MULTICAST_LOOP, - IPV6_MULTICAST_LOOP, - VALIDATE_MULTICAST_LOOP) - -#undef SOCKOPT_SETTER -#undef VALIDATE_TTL -#undef VALIDATE_MULTICAST_TTL -#undef VALIDATE_MULTICAST_LOOP - - -/* This function is an egress point, i.e. it returns libuv errors rather than - * system errors. - */ -int uv__udp_bind(uv_udp_t* handle, - const struct sockaddr* addr, - unsigned int addrlen, - unsigned int flags) { - int err; - - err = uv_udp_maybe_bind(handle, addr, addrlen, flags); - if (err) - return uv_translate_sys_error(err); - - return 0; -} - - -/* This function is an egress point, i.e. it returns libuv errors rather than - * system errors. - */ -int uv__udp_send(uv_udp_send_t* req, - uv_udp_t* handle, - const uv_buf_t bufs[], - unsigned int nbufs, - const struct sockaddr* addr, - unsigned int addrlen, - uv_udp_send_cb send_cb) { - const struct sockaddr* bind_addr; - int err; - - if (!(handle->flags & UV_HANDLE_BOUND)) { - if (addrlen == sizeof(uv_addr_ip4_any_)) { - bind_addr = (const struct sockaddr*) &uv_addr_ip4_any_; - } else if (addrlen == sizeof(uv_addr_ip6_any_)) { - bind_addr = (const struct sockaddr*) &uv_addr_ip6_any_; - } else { - abort(); - } - err = uv_udp_maybe_bind(handle, bind_addr, addrlen, 0); - if (err) - return uv_translate_sys_error(err); - } - - err = uv__send(req, handle, bufs, nbufs, addr, addrlen, send_cb); - if (err) - return uv_translate_sys_error(err); - - return 0; -} - - -int uv__udp_try_send(uv_udp_t* handle, - const uv_buf_t bufs[], - unsigned int nbufs, - const struct sockaddr* addr, - unsigned int addrlen) { - return UV_ENOSYS; -} |