/*- * Copyright (c) 2009-2010 Brad Penoff * Copyright (c) 2009-2010 Humaira Kamal * Copyright (c) 2011-2012 Irene Ruengeler * Copyright (c) 2011-2012 Michael Tuexen * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * */ #if defined(INET) || defined(INET6) #include #if !defined(__Userspace_os_Windows) #include #include #include #include #if !defined(__Userspace_os_DragonFly) && !defined(__Userspace_os_FreeBSD) && !defined(__Userspace_os_NetBSD) #include #else #include #endif #endif #include #include #include #include #if 0 #if defined(__Userspace_os_Linux) #include #ifdef HAVE_LINUX_IF_ADDR_H #include #endif #ifdef HAVE_LINUX_RTNETLINK_H #include #endif #endif #endif #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) #include #endif /* local macros and datatypes used to get IP addresses system independently */ #if !defined(IP_PKTINFO ) && ! defined(IP_RECVDSTADDR) # error "Can't determine socket option to use to get UDP IP" #endif void recv_thread_destroy(void); #define MAXLEN_MBUF_CHAIN 32 /* What should this value be? */ #define ROUNDUP(a, size) (((a) & ((size)-1)) ? (1 + ((a) | ((size)-1))) : (a)) #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) #define NEXT_SA(ap) ap = (struct sockaddr *) \ ((caddr_t) ap + (ap->sa_len ? ROUNDUP(ap->sa_len, sizeof (uint32_t)) : sizeof(uint32_t))) #endif #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) static void sctp_get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info) { int i; for (i = 0; i < RTAX_MAX; i++) { if (addrs & (1 << i)) { rti_info[i] = sa; NEXT_SA(sa); } else { rti_info[i] = NULL; } } } static void sctp_handle_ifamsg(unsigned char type, unsigned short index, struct sockaddr *sa) { int rc; struct ifaddrs *ifa, *ifas; /* handle only the types we want */ if ((type != RTM_NEWADDR) && (type != RTM_DELADDR)) { return; } rc = getifaddrs(&ifas); if (rc != 0) { return; } for (ifa = ifas; ifa; ifa = ifa->ifa_next) { if (index == if_nametoindex(ifa->ifa_name)) { break; } } if (ifa == NULL) { freeifaddrs(ifas); return; } /* relay the appropriate address change to the base code */ if (type == RTM_NEWADDR) { (void)sctp_add_addr_to_vrf(SCTP_DEFAULT_VRFID, NULL, if_nametoindex(ifa->ifa_name), 0, ifa->ifa_name, NULL, sa, 0, 1); } else { sctp_del_addr_from_vrf(SCTP_DEFAULT_VRFID, ifa->ifa_addr, if_nametoindex(ifa->ifa_name), ifa->ifa_name); } freeifaddrs(ifas); } static void * recv_function_route(void *arg) { ssize_t ret; struct ifa_msghdr *ifa; char rt_buffer[1024]; struct sockaddr *sa, *rti_info[RTAX_MAX]; sctp_userspace_set_threadname("SCTP addr mon"); while (1) { memset(rt_buffer, 0, sizeof(rt_buffer)); ret = recv(SCTP_BASE_VAR(userspace_route), rt_buffer, sizeof(rt_buffer), 0); if (ret > 0) { ifa = (struct ifa_msghdr *) rt_buffer; if (ifa->ifam_type != RTM_DELADDR && ifa->ifam_type != RTM_NEWADDR) { continue; } sa = (struct sockaddr *) (ifa + 1); sctp_get_rtaddrs(ifa->ifam_addrs, sa, rti_info); switch (ifa->ifam_type) { case RTM_DELADDR: case RTM_NEWADDR: sctp_handle_ifamsg(ifa->ifam_type, ifa->ifam_index, rti_info[RTAX_IFA]); break; default: /* ignore this routing event */ break; } } if (ret < 0) { if (errno == EAGAIN || errno == EINTR) { continue; } else { break; } } } return (NULL); } #endif #if 0 /* This does not yet work on Linux */ static void * recv_function_route(void *arg) { int len; char buf[4096]; struct iovec iov = { buf, sizeof(buf) }; struct msghdr msg; struct nlmsghdr *nh; struct ifaddrmsg *rtmsg; struct rtattr *rtatp; struct in_addr *inp; struct sockaddr_nl sanl; #ifdef INET struct sockaddr_in *sa; #endif #ifdef INET6 struct sockaddr_in6 *sa6; #endif for (;;) { memset(&sanl, 0, sizeof(sanl)); sanl.nl_family = AF_NETLINK; sanl.nl_groups = RTMGRP_IPV6_IFADDR | RTMGRP_IPV4_IFADDR; memset(&msg, 0, sizeof(struct msghdr)); msg.msg_name = (void *)&sanl; msg.msg_namelen = sizeof(sanl); msg.msg_iov = &iov; msg.msg_iovlen = 1; msg.msg_control = NULL; msg.msg_controllen = 0; len = recvmsg(SCTP_BASE_VAR(userspace_route), &msg, 0); if (len < 0) { if (errno == EAGAIN || errno == EINTR) { continue; } else { break; } } for (nh = (struct nlmsghdr *) buf; NLMSG_OK (nh, len); nh = NLMSG_NEXT (nh, len)) { if (nh->nlmsg_type == NLMSG_DONE) break; if (nh->nlmsg_type == RTM_NEWADDR || nh->nlmsg_type == RTM_DELADDR) { rtmsg = (struct ifaddrmsg *)NLMSG_DATA(nh); rtatp = (struct rtattr *)IFA_RTA(rtmsg); if (rtatp->rta_type == IFA_ADDRESS) { inp = (struct in_addr *)RTA_DATA(rtatp); switch (rtmsg->ifa_family) { #ifdef INET case AF_INET: sa = (struct sockaddr_in *)malloc(sizeof(struct sockaddr_in)); sa->sin_family = rtmsg->ifa_family; sa->sin_port = 0; memcpy(&sa->sin_addr, inp, sizeof(struct in_addr)); sctp_handle_ifamsg(nh->nlmsg_type, rtmsg->ifa_index, (struct sockaddr *)sa); break; #endif #ifdef INET6 case AF_INET6: sa6 = (struct sockaddr_in6 *)malloc(sizeof(struct sockaddr_in6)); sa6->sin6_family = rtmsg->ifa_family; sa6->sin6_port = 0; memcpy(&sa6->sin6_addr, inp, sizeof(struct in6_addr)); sctp_handle_ifamsg(nh->nlmsg_type, rtmsg->ifa_index, (struct sockaddr *)sa6); break; #endif default: SCTPDBG(SCTP_DEBUG_USR, "Address family %d not supported.\n", rtmsg->ifa_family); break; } } } } } return (NULL); } #endif #ifdef INET static void * recv_function_raw(void *arg) { struct mbuf **recvmbuf; struct ip *iphdr; struct sctphdr *sh; uint16_t port; int offset, ecn = 0; int compute_crc = 1; struct sctp_chunkhdr *ch; struct sockaddr_in src, dst; #if !defined(__Userspace_os_Windows) unsigned int ncounter; struct msghdr msg; struct iovec recv_iovec[MAXLEN_MBUF_CHAIN]; #else WSABUF recv_iovec[MAXLEN_MBUF_CHAIN]; int nResult, m_ErrorCode; DWORD flags; DWORD ncounter; struct sockaddr_in from; int fromlen; #endif /*Initially the entire set of mbufs is to be allocated. to_fill indicates this amount. */ int to_fill = MAXLEN_MBUF_CHAIN; /* iovlen is the size of each mbuf in the chain */ int i, n; unsigned int iovlen = MCLBYTES; int want_ext = (iovlen > MLEN)? 1 : 0; int want_header = 0; sctp_userspace_set_threadname("SCTP/IP4 rcv"); memset(&src, 0, sizeof(struct sockaddr_in)); memset(&dst, 0, sizeof(struct sockaddr_in)); recvmbuf = malloc(sizeof(struct mbuf *) * MAXLEN_MBUF_CHAIN); while (1) { for (i = 0; i < to_fill; i++) { /* Not getting the packet header. Tests with chain of one run as usual without having the packet header. Have tried both sending and receiving */ recvmbuf[i] = sctp_get_mbuf_for_msg(iovlen, want_header, M_NOWAIT, want_ext, MT_DATA); #if !defined(__Userspace_os_Windows) recv_iovec[i].iov_base = (caddr_t)recvmbuf[i]->m_data; recv_iovec[i].iov_len = iovlen; #else recv_iovec[i].buf = (caddr_t)recvmbuf[i]->m_data; recv_iovec[i].len = iovlen; #endif } to_fill = 0; #if defined(__Userspace_os_Windows) flags = 0; ncounter = 0; fromlen = sizeof(struct sockaddr_in); memset(&from, 0, sizeof(struct sockaddr_in)); nResult = WSARecvFrom(SCTP_BASE_VAR(userspace_rawsctp), recv_iovec, MAXLEN_MBUF_CHAIN, &ncounter, &flags, (struct sockaddr *)&from, &fromlen, NULL, NULL); if (nResult != 0) { m_ErrorCode = WSAGetLastError(); if ((m_ErrorCode == WSAENOTSOCK) || (m_ErrorCode == WSAEINTR)) { break; } continue; } n = ncounter; #else memset(&msg, 0, sizeof(struct msghdr)); msg.msg_name = NULL; msg.msg_namelen = 0; msg.msg_iov = recv_iovec; msg.msg_iovlen = MAXLEN_MBUF_CHAIN; msg.msg_control = NULL; msg.msg_controllen = 0; ncounter = n = recvmsg(SCTP_BASE_VAR(userspace_rawsctp), &msg, 0); if (n < 0) { if (errno == EAGAIN || errno == EINTR) { continue; } else { break; } } #endif SCTP_HEADER_LEN(recvmbuf[0]) = n; /* length of total packet */ SCTP_STAT_INCR(sctps_recvpackets); SCTP_STAT_INCR_COUNTER64(sctps_inpackets); if ((unsigned int)n <= iovlen) { SCTP_BUF_LEN(recvmbuf[0]) = n; (to_fill)++; } else { i = 0; SCTP_BUF_LEN(recvmbuf[0]) = iovlen; ncounter -= min(ncounter, iovlen); (to_fill)++; do { recvmbuf[i]->m_next = recvmbuf[i+1]; SCTP_BUF_LEN(recvmbuf[i]->m_next) = min(ncounter, iovlen); i++; ncounter -= min(ncounter, iovlen); (to_fill)++; } while (ncounter > 0); } iphdr = mtod(recvmbuf[0], struct ip *); sh = (struct sctphdr *)((caddr_t)iphdr + sizeof(struct ip)); ch = (struct sctp_chunkhdr *)((caddr_t)sh + sizeof(struct sctphdr)); offset = sizeof(struct ip) + sizeof(struct sctphdr); if (iphdr->ip_tos != 0) { ecn = iphdr->ip_tos & 0x02; } dst.sin_family = AF_INET; #ifdef HAVE_SIN_LEN dst.sin_len = sizeof(struct sockaddr_in); #endif dst.sin_addr = iphdr->ip_dst; dst.sin_port = sh->dest_port; src.sin_family = AF_INET; #ifdef HAVE_SIN_LEN src.sin_len = sizeof(struct sockaddr_in); #endif src.sin_addr = iphdr->ip_src; src.sin_port = sh->src_port; /* SCTP does not allow broadcasts or multicasts */ if (IN_MULTICAST(ntohl(dst.sin_addr.s_addr))) { m_freem(recvmbuf[0]); continue; } if (SCTP_IS_IT_BROADCAST(dst.sin_addr, recvmbuf[0])) { m_freem(recvmbuf[0]); continue; } port = 0; if (SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) && ((IN4_ISLOOPBACK_ADDRESS(&src.sin_addr) && IN4_ISLOOPBACK_ADDRESS(&dst.sin_addr)) || (src.sin_addr.s_addr == dst.sin_addr.s_addr))) { compute_crc = 0; SCTP_STAT_INCR(sctps_recvhwcrc); } else { SCTP_STAT_INCR(sctps_recvswcrc); } SCTPDBG(SCTP_DEBUG_USR, "%s: Received %d bytes.", __func__, n); SCTPDBG(SCTP_DEBUG_USR, " - calling sctp_common_input_processing with off=%d\n", offset); sctp_common_input_processing(&recvmbuf[0], sizeof(struct ip), offset, n, (struct sockaddr *)&src, (struct sockaddr *)&dst, sh, ch, compute_crc, ecn, SCTP_DEFAULT_VRFID, port); if (recvmbuf[0]) { m_freem(recvmbuf[0]); } } for (i = 0; i < MAXLEN_MBUF_CHAIN; i++) { m_free(recvmbuf[i]); } /* free the array itself */ free(recvmbuf); SCTPDBG(SCTP_DEBUG_USR, "%s: Exiting SCTP/IP4 rcv", __func__); return (NULL); } #endif #if defined(INET6) static void * recv_function_raw6(void *arg) { struct mbuf **recvmbuf6; #if !defined(__Userspace_os_Windows) unsigned int ncounter = 0; struct iovec recv_iovec[MAXLEN_MBUF_CHAIN]; struct msghdr msg; struct cmsghdr *cmsgptr; char cmsgbuf[CMSG_SPACE(sizeof (struct in6_pktinfo))]; #else WSABUF recv_iovec[MAXLEN_MBUF_CHAIN]; int nResult, m_ErrorCode; DWORD ncounter = 0; struct sockaddr_in6 from; GUID WSARecvMsg_GUID = WSAID_WSARECVMSG; LPFN_WSARECVMSG WSARecvMsg; WSACMSGHDR *cmsgptr; WSAMSG msg; char ControlBuffer[1024]; #endif struct sockaddr_in6 src, dst; struct sctphdr *sh; int offset; struct sctp_chunkhdr *ch; /*Initially the entire set of mbufs is to be allocated. to_fill indicates this amount. */ int to_fill = MAXLEN_MBUF_CHAIN; /* iovlen is the size of each mbuf in the chain */ int i, n; int compute_crc = 1; unsigned int iovlen = MCLBYTES; int want_ext = (iovlen > MLEN)? 1 : 0; int want_header = 0; sctp_userspace_set_threadname("SCTP/IP6 rcv"); recvmbuf6 = malloc(sizeof(struct mbuf *) * MAXLEN_MBUF_CHAIN); for (;;) { for (i = 0; i < to_fill; i++) { /* Not getting the packet header. Tests with chain of one run as usual without having the packet header. Have tried both sending and receiving */ recvmbuf6[i] = sctp_get_mbuf_for_msg(iovlen, want_header, M_NOWAIT, want_ext, MT_DATA); #if !defined(__Userspace_os_Windows) recv_iovec[i].iov_base = (caddr_t)recvmbuf6[i]->m_data; recv_iovec[i].iov_len = iovlen; #else recv_iovec[i].buf = (caddr_t)recvmbuf6[i]->m_data; recv_iovec[i].len = iovlen; #endif } to_fill = 0; #if defined(__Userspace_os_Windows) ncounter = 0; memset(&from, 0, sizeof(struct sockaddr_in6)); nResult = WSAIoctl(SCTP_BASE_VAR(userspace_rawsctp6), SIO_GET_EXTENSION_FUNCTION_POINTER, &WSARecvMsg_GUID, sizeof WSARecvMsg_GUID, &WSARecvMsg, sizeof WSARecvMsg, &ncounter, NULL, NULL); if (nResult == 0) { msg.name = (void *)&src; msg.namelen = sizeof(struct sockaddr_in6); msg.lpBuffers = recv_iovec; msg.dwBufferCount = MAXLEN_MBUF_CHAIN; msg.Control.len = sizeof ControlBuffer; msg.Control.buf = ControlBuffer; msg.dwFlags = 0; nResult = WSARecvMsg(SCTP_BASE_VAR(userspace_rawsctp6), &msg, &ncounter, NULL, NULL); } if (nResult != 0) { m_ErrorCode = WSAGetLastError(); if ((m_ErrorCode == WSAENOTSOCK) || (m_ErrorCode == WSAEINTR)) { break; } continue; } n = ncounter; #else memset(&msg, 0, sizeof(struct msghdr)); memset(&src, 0, sizeof(struct sockaddr_in6)); memset(&dst, 0, sizeof(struct sockaddr_in6)); memset(cmsgbuf, 0, CMSG_SPACE(sizeof (struct in6_pktinfo))); msg.msg_name = (void *)&src; msg.msg_namelen = sizeof(struct sockaddr_in6); msg.msg_iov = recv_iovec; msg.msg_iovlen = MAXLEN_MBUF_CHAIN; msg.msg_control = (void *)cmsgbuf; msg.msg_controllen = (socklen_t)CMSG_SPACE(sizeof (struct in6_pktinfo)); msg.msg_flags = 0; ncounter = n = recvmsg(SCTP_BASE_VAR(userspace_rawsctp6), &msg, 0); if (n < 0) { if (errno == EAGAIN || errno == EINTR) { continue; } else { break; } } #endif SCTP_HEADER_LEN(recvmbuf6[0]) = n; /* length of total packet */ SCTP_STAT_INCR(sctps_recvpackets); SCTP_STAT_INCR_COUNTER64(sctps_inpackets); if ((unsigned int)n <= iovlen) { SCTP_BUF_LEN(recvmbuf6[0]) = n; (to_fill)++; } else { i = 0; SCTP_BUF_LEN(recvmbuf6[0]) = iovlen; ncounter -= min(ncounter, iovlen); (to_fill)++; do { recvmbuf6[i]->m_next = recvmbuf6[i+1]; SCTP_BUF_LEN(recvmbuf6[i]->m_next) = min(ncounter, iovlen); i++; ncounter -= min(ncounter, iovlen); (to_fill)++; } while (ncounter > 0); } for (cmsgptr = CMSG_FIRSTHDR(&msg); cmsgptr != NULL; cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) { if ((cmsgptr->cmsg_level == IPPROTO_IPV6) && (cmsgptr->cmsg_type == IPV6_PKTINFO)) { struct in6_pktinfo * info; info = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); memcpy((void *)&dst.sin6_addr, (const void *) &(info->ipi6_addr), sizeof(struct in6_addr)); break; } } /* SCTP does not allow broadcasts or multicasts */ if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr)) { m_freem(recvmbuf6[0]); continue; } sh = mtod(recvmbuf6[0], struct sctphdr *); ch = (struct sctp_chunkhdr *)((caddr_t)sh + sizeof(struct sctphdr)); offset = sizeof(struct sctphdr); dst.sin6_family = AF_INET6; #ifdef HAVE_SIN6_LEN dst.sin6_len = sizeof(struct sockaddr_in6); #endif dst.sin6_port = sh->dest_port; src.sin6_family = AF_INET6; #ifdef HAVE_SIN6_LEN src.sin6_len = sizeof(struct sockaddr_in6); #endif src.sin6_port = sh->src_port; if (memcmp(&src.sin6_addr, &dst.sin6_addr, sizeof(struct in6_addr)) == 0) { compute_crc = 0; SCTP_STAT_INCR(sctps_recvhwcrc); } else { SCTP_STAT_INCR(sctps_recvswcrc); } SCTPDBG(SCTP_DEBUG_USR, "%s: Received %d bytes.", __func__, n); SCTPDBG(SCTP_DEBUG_USR, " - calling sctp_common_input_processing with off=%d\n", offset); sctp_common_input_processing(&recvmbuf6[0], 0, offset, n, (struct sockaddr *)&src, (struct sockaddr *)&dst, sh, ch, compute_crc, 0, SCTP_DEFAULT_VRFID, 0); if (recvmbuf6[0]) { m_freem(recvmbuf6[0]); } } for (i = 0; i < MAXLEN_MBUF_CHAIN; i++) { m_free(recvmbuf6[i]); } /* free the array itself */ free(recvmbuf6); SCTPDBG(SCTP_DEBUG_USR, "%s: Exiting SCTP/IP6 rcv", __func__); return (NULL); } #endif #ifdef INET static void * recv_function_udp(void *arg) { struct mbuf **udprecvmbuf; /*Initially the entire set of mbufs is to be allocated. to_fill indicates this amount. */ int to_fill = MAXLEN_MBUF_CHAIN; /* iovlen is the size of each mbuf in the chain */ int i, n, offset; unsigned int iovlen = MCLBYTES; int want_ext = (iovlen > MLEN)? 1 : 0; int want_header = 0; struct sctphdr *sh; uint16_t port; struct sctp_chunkhdr *ch; struct sockaddr_in src, dst; #if defined(IP_PKTINFO) char cmsgbuf[CMSG_SPACE(sizeof(struct in_pktinfo))]; #else char cmsgbuf[CMSG_SPACE(sizeof(struct in_addr))]; #endif int compute_crc = 1; #if !defined(__Userspace_os_Windows) unsigned int ncounter; struct iovec iov[MAXLEN_MBUF_CHAIN]; struct msghdr msg; struct cmsghdr *cmsgptr; #else GUID WSARecvMsg_GUID = WSAID_WSARECVMSG; LPFN_WSARECVMSG WSARecvMsg; char ControlBuffer[1024]; WSABUF iov[MAXLEN_MBUF_CHAIN]; WSAMSG msg; int nResult, m_ErrorCode; WSACMSGHDR *cmsgptr; DWORD ncounter; #endif sctp_userspace_set_threadname("SCTP/UDP/IP4 rcv"); udprecvmbuf = malloc(sizeof(struct mbuf *) * MAXLEN_MBUF_CHAIN); while (1) { for (i = 0; i < to_fill; i++) { /* Not getting the packet header. Tests with chain of one run as usual without having the packet header. Have tried both sending and receiving */ udprecvmbuf[i] = sctp_get_mbuf_for_msg(iovlen, want_header, M_NOWAIT, want_ext, MT_DATA); #if !defined(__Userspace_os_Windows) iov[i].iov_base = (caddr_t)udprecvmbuf[i]->m_data; iov[i].iov_len = iovlen; #else iov[i].buf = (caddr_t)udprecvmbuf[i]->m_data; iov[i].len = iovlen; #endif } to_fill = 0; #if !defined(__Userspace_os_Windows) memset(&msg, 0, sizeof(struct msghdr)); #else memset(&msg, 0, sizeof(WSAMSG)); #endif memset(&src, 0, sizeof(struct sockaddr_in)); memset(&dst, 0, sizeof(struct sockaddr_in)); memset(cmsgbuf, 0, sizeof(cmsgbuf)); #if !defined(__Userspace_os_Windows) msg.msg_name = (void *)&src; msg.msg_namelen = sizeof(struct sockaddr_in); msg.msg_iov = iov; msg.msg_iovlen = MAXLEN_MBUF_CHAIN; msg.msg_control = (void *)cmsgbuf; msg.msg_controllen = sizeof(cmsgbuf); msg.msg_flags = 0; ncounter = n = recvmsg(SCTP_BASE_VAR(userspace_udpsctp), &msg, 0); if (n < 0) { if (errno == EAGAIN || errno == EINTR) { continue; } else { break; } } #else nResult = WSAIoctl(SCTP_BASE_VAR(userspace_udpsctp), SIO_GET_EXTENSION_FUNCTION_POINTER, &WSARecvMsg_GUID, sizeof WSARecvMsg_GUID, &WSARecvMsg, sizeof WSARecvMsg, &ncounter, NULL, NULL); if (nResult == 0) { msg.name = (void *)&src; msg.namelen = sizeof(struct sockaddr_in); msg.lpBuffers = iov; msg.dwBufferCount = MAXLEN_MBUF_CHAIN; msg.Control.len = sizeof ControlBuffer; msg.Control.buf = ControlBuffer; msg.dwFlags = 0; nResult = WSARecvMsg(SCTP_BASE_VAR(userspace_udpsctp), &msg, &ncounter, NULL, NULL); } if (nResult != 0) { m_ErrorCode = WSAGetLastError(); if ((m_ErrorCode == WSAENOTSOCK) || (m_ErrorCode == WSAEINTR)) { break; } continue; } n = ncounter; #endif SCTP_HEADER_LEN(udprecvmbuf[0]) = n; /* length of total packet */ SCTP_STAT_INCR(sctps_recvpackets); SCTP_STAT_INCR_COUNTER64(sctps_inpackets); if ((unsigned int)n <= iovlen) { SCTP_BUF_LEN(udprecvmbuf[0]) = n; (to_fill)++; } else { i = 0; SCTP_BUF_LEN(udprecvmbuf[0]) = iovlen; ncounter -= min(ncounter, iovlen); (to_fill)++; do { udprecvmbuf[i]->m_next = udprecvmbuf[i+1]; SCTP_BUF_LEN(udprecvmbuf[i]->m_next) = min(ncounter, iovlen); i++; ncounter -= min(ncounter, iovlen); (to_fill)++; } while (ncounter > 0); } for (cmsgptr = CMSG_FIRSTHDR(&msg); cmsgptr != NULL; cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) { #if defined(IP_PKTINFO) if ((cmsgptr->cmsg_level == IPPROTO_IP) && (cmsgptr->cmsg_type == IP_PKTINFO)) { struct in_pktinfo *info; dst.sin_family = AF_INET; #ifdef HAVE_SIN_LEN dst.sin_len = sizeof(struct sockaddr_in); #endif info = (struct in_pktinfo *)CMSG_DATA(cmsgptr); memcpy((void *)&dst.sin_addr, (const void *)&(info->ipi_addr), sizeof(struct in_addr)); break; } #else if ((cmsgptr->cmsg_level == IPPROTO_IP) && (cmsgptr->cmsg_type == IP_RECVDSTADDR)) { struct in_addr *addr; dst.sin_family = AF_INET; #ifdef HAVE_SIN_LEN dst.sin_len = sizeof(struct sockaddr_in); #endif addr = (struct in_addr *)CMSG_DATA(cmsgptr); memcpy((void *)&dst.sin_addr, (const void *)addr, sizeof(struct in_addr)); break; } #endif } /* SCTP does not allow broadcasts or multicasts */ if (IN_MULTICAST(ntohl(dst.sin_addr.s_addr))) { m_freem(udprecvmbuf[0]); continue; } if (SCTP_IS_IT_BROADCAST(dst.sin_addr, udprecvmbuf[0])) { m_freem(udprecvmbuf[0]); continue; } /*offset = sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);*/ sh = mtod(udprecvmbuf[0], struct sctphdr *); ch = (struct sctp_chunkhdr *)((caddr_t)sh + sizeof(struct sctphdr)); offset = sizeof(struct sctphdr); port = src.sin_port; src.sin_port = sh->src_port; dst.sin_port = sh->dest_port; if (src.sin_addr.s_addr == dst.sin_addr.s_addr) { compute_crc = 0; SCTP_STAT_INCR(sctps_recvhwcrc); } else { SCTP_STAT_INCR(sctps_recvswcrc); } SCTPDBG(SCTP_DEBUG_USR, "%s: Received %d bytes.", __func__, n); SCTPDBG(SCTP_DEBUG_USR, " - calling sctp_common_input_processing with off=%d\n", offset); sctp_common_input_processing(&udprecvmbuf[0], 0, offset, n, (struct sockaddr *)&src, (struct sockaddr *)&dst, sh, ch, compute_crc, 0, SCTP_DEFAULT_VRFID, port); if (udprecvmbuf[0]) { m_freem(udprecvmbuf[0]); } } for (i = 0; i < MAXLEN_MBUF_CHAIN; i++) { m_free(udprecvmbuf[i]); } /* free the array itself */ free(udprecvmbuf); SCTPDBG(SCTP_DEBUG_USR, "%s: Exiting SCTP/UDP/IP4 rcv", __func__); return (NULL); } #endif #if defined(INET6) static void * recv_function_udp6(void *arg) { struct mbuf **udprecvmbuf6; /*Initially the entire set of mbufs is to be allocated. to_fill indicates this amount. */ int to_fill = MAXLEN_MBUF_CHAIN; /* iovlen is the size of each mbuf in the chain */ int i, n, offset; unsigned int iovlen = MCLBYTES; int want_ext = (iovlen > MLEN)? 1 : 0; int want_header = 0; struct sockaddr_in6 src, dst; struct sctphdr *sh; uint16_t port; struct sctp_chunkhdr *ch; char cmsgbuf[CMSG_SPACE(sizeof (struct in6_pktinfo))]; int compute_crc = 1; #if !defined(__Userspace_os_Windows) struct iovec iov[MAXLEN_MBUF_CHAIN]; struct msghdr msg; struct cmsghdr *cmsgptr; unsigned int ncounter; #else GUID WSARecvMsg_GUID = WSAID_WSARECVMSG; LPFN_WSARECVMSG WSARecvMsg; char ControlBuffer[1024]; WSABUF iov[MAXLEN_MBUF_CHAIN]; WSAMSG msg; int nResult, m_ErrorCode; WSACMSGHDR *cmsgptr; DWORD ncounter; #endif sctp_userspace_set_threadname("SCTP/UDP/IP6 rcv"); udprecvmbuf6 = malloc(sizeof(struct mbuf *) * MAXLEN_MBUF_CHAIN); while (1) { for (i = 0; i < to_fill; i++) { /* Not getting the packet header. Tests with chain of one run as usual without having the packet header. Have tried both sending and receiving */ udprecvmbuf6[i] = sctp_get_mbuf_for_msg(iovlen, want_header, M_NOWAIT, want_ext, MT_DATA); #if !defined(__Userspace_os_Windows) iov[i].iov_base = (caddr_t)udprecvmbuf6[i]->m_data; iov[i].iov_len = iovlen; #else iov[i].buf = (caddr_t)udprecvmbuf6[i]->m_data; iov[i].len = iovlen; #endif } to_fill = 0; #if !defined(__Userspace_os_Windows) memset(&msg, 0, sizeof(struct msghdr)); #else memset(&msg, 0, sizeof(WSAMSG)); #endif memset(&src, 0, sizeof(struct sockaddr_in6)); memset(&dst, 0, sizeof(struct sockaddr_in6)); memset(cmsgbuf, 0, CMSG_SPACE(sizeof (struct in6_pktinfo))); #if !defined(__Userspace_os_Windows) msg.msg_name = (void *)&src; msg.msg_namelen = sizeof(struct sockaddr_in6); msg.msg_iov = iov; msg.msg_iovlen = MAXLEN_MBUF_CHAIN; msg.msg_control = (void *)cmsgbuf; msg.msg_controllen = (socklen_t)CMSG_SPACE(sizeof (struct in6_pktinfo)); msg.msg_flags = 0; ncounter = n = recvmsg(SCTP_BASE_VAR(userspace_udpsctp6), &msg, 0); if (n < 0) { if (errno == EAGAIN || errno == EINTR) { continue; } else { break; } } #else nResult = WSAIoctl(SCTP_BASE_VAR(userspace_udpsctp6), SIO_GET_EXTENSION_FUNCTION_POINTER, &WSARecvMsg_GUID, sizeof WSARecvMsg_GUID, &WSARecvMsg, sizeof WSARecvMsg, &ncounter, NULL, NULL); if (nResult == SOCKET_ERROR) { m_ErrorCode = WSAGetLastError(); WSARecvMsg = NULL; } if (nResult == 0) { msg.name = (void *)&src; msg.namelen = sizeof(struct sockaddr_in6); msg.lpBuffers = iov; msg.dwBufferCount = MAXLEN_MBUF_CHAIN; msg.Control.len = sizeof ControlBuffer; msg.Control.buf = ControlBuffer; msg.dwFlags = 0; nResult = WSARecvMsg(SCTP_BASE_VAR(userspace_udpsctp6), &msg, &ncounter, NULL, NULL); } if (nResult != 0) { m_ErrorCode = WSAGetLastError(); if ((m_ErrorCode == WSAENOTSOCK) || (m_ErrorCode == WSAEINTR)) { break; } continue; } n = ncounter; #endif SCTP_HEADER_LEN(udprecvmbuf6[0]) = n; /* length of total packet */ SCTP_STAT_INCR(sctps_recvpackets); SCTP_STAT_INCR_COUNTER64(sctps_inpackets); if ((unsigned int)n <= iovlen) { SCTP_BUF_LEN(udprecvmbuf6[0]) = n; (to_fill)++; } else { i = 0; SCTP_BUF_LEN(udprecvmbuf6[0]) = iovlen; ncounter -= min(ncounter, iovlen); (to_fill)++; do { udprecvmbuf6[i]->m_next = udprecvmbuf6[i+1]; SCTP_BUF_LEN(udprecvmbuf6[i]->m_next) = min(ncounter, iovlen); i++; ncounter -= min(ncounter, iovlen); (to_fill)++; } while (ncounter > 0); } for (cmsgptr = CMSG_FIRSTHDR(&msg); cmsgptr != NULL; cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) { if ((cmsgptr->cmsg_level == IPPROTO_IPV6) && (cmsgptr->cmsg_type == IPV6_PKTINFO)) { struct in6_pktinfo *info; dst.sin6_family = AF_INET6; #ifdef HAVE_SIN6_LEN dst.sin6_len = sizeof(struct sockaddr_in6); #endif info = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); /*dst.sin6_port = htons(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port));*/ memcpy((void *)&dst.sin6_addr, (const void *)&(info->ipi6_addr), sizeof(struct in6_addr)); } } /* SCTP does not allow broadcasts or multicasts */ if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr)) { m_freem(udprecvmbuf6[0]); continue; } sh = mtod(udprecvmbuf6[0], struct sctphdr *); ch = (struct sctp_chunkhdr *)((caddr_t)sh + sizeof(struct sctphdr)); offset = sizeof(struct sctphdr); port = src.sin6_port; src.sin6_port = sh->src_port; dst.sin6_port = sh->dest_port; if ((memcmp(&src.sin6_addr, &dst.sin6_addr, sizeof(struct in6_addr)) == 0)) { compute_crc = 0; SCTP_STAT_INCR(sctps_recvhwcrc); } else { SCTP_STAT_INCR(sctps_recvswcrc); } SCTPDBG(SCTP_DEBUG_USR, "%s: Received %d bytes.", __func__, n); SCTPDBG(SCTP_DEBUG_USR, " - calling sctp_common_input_processing with off=%d\n", (int)sizeof(struct sctphdr)); sctp_common_input_processing(&udprecvmbuf6[0], 0, offset, n, (struct sockaddr *)&src, (struct sockaddr *)&dst, sh, ch, compute_crc, 0, SCTP_DEFAULT_VRFID, port); if (udprecvmbuf6[0]) { m_freem(udprecvmbuf6[0]); } } for (i = 0; i < MAXLEN_MBUF_CHAIN; i++) { m_free(udprecvmbuf6[i]); } /* free the array itself */ free(udprecvmbuf6); SCTPDBG(SCTP_DEBUG_USR, "%s: Exiting SCTP/UDP/IP6 rcv", __func__); return (NULL); } #endif #if defined (__Userspace_os_Windows) static void setReceiveBufferSize(SOCKET sfd, int new_size) #else static void setReceiveBufferSize(int sfd, int new_size) #endif { int ch = new_size; if (setsockopt (sfd, SOL_SOCKET, SO_RCVBUF, (void*)&ch, sizeof(ch)) < 0) { #if defined (__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set recv-buffers size (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set recv-buffers size (errno = %d).\n", errno); #endif } return; } #if defined (__Userspace_os_Windows) static void setSendBufferSize(SOCKET sfd, int new_size) #else static void setSendBufferSize(int sfd, int new_size) #endif { int ch = new_size; if (setsockopt (sfd, SOL_SOCKET, SO_SNDBUF, (void*)&ch, sizeof(ch)) < 0) { #if defined (__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set send-buffers size (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set send-buffers size (errno = %d).\n", errno); #endif } return; } #define SOCKET_TIMEOUT 100 /* in ms */ void recv_thread_init(void) { #if defined(INET) struct sockaddr_in addr_ipv4; const int hdrincl = 1; #endif #if defined(INET6) struct sockaddr_in6 addr_ipv6; #endif #if defined(INET) || defined(INET6) const int on = 1; #endif #if !defined(__Userspace_os_Windows) struct timeval timeout; memset(&timeout, 0, sizeof(struct timeval)); timeout.tv_sec = (SOCKET_TIMEOUT / 1000); timeout.tv_usec = (SOCKET_TIMEOUT % 1000) * 1000; #else unsigned int timeout = SOCKET_TIMEOUT; /* Timeout in milliseconds */ #endif #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) if (SCTP_BASE_VAR(userspace_route) == -1) { if ((SCTP_BASE_VAR(userspace_route) = socket(AF_ROUTE, SOCK_RAW, 0)) == -1) { SCTPDBG(SCTP_DEBUG_USR, "Can't create routing socket (errno = %d).\n", errno); } #if 0 struct sockaddr_nl sanl; if ((SCTP_BASE_VAR(userspace_route) = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) < 0) { SCTPDBG(SCTP_DEBUG_USR, "Can't create routing socket (errno = %d.\n", errno); } memset(&sanl, 0, sizeof(sanl)); sanl.nl_family = AF_NETLINK; sanl.nl_groups = 0; #ifdef INET sanl.nl_groups |= RTMGRP_IPV4_IFADDR; #endif #ifdef INET6 sanl.nl_groups |= RTMGRP_IPV6_IFADDR; #endif if (bind(SCTP_BASE_VAR(userspace_route), (struct sockaddr *) &sanl, sizeof(sanl)) < 0) { SCTPDBG(SCTP_DEBUG_USR, "Can't bind routing socket (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_route)); SCTP_BASE_VAR(userspace_route) = -1; } #endif if (SCTP_BASE_VAR(userspace_route) != -1) { if (setsockopt(SCTP_BASE_VAR(userspace_route), SOL_SOCKET, SO_RCVTIMEO,(const void*)&timeout, sizeof(struct timeval)) < 0) { SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on routing socket (errno = %d).\n", errno); #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_route)); #else close(SCTP_BASE_VAR(userspace_route)); #endif SCTP_BASE_VAR(userspace_route) = -1; } } } #endif #if defined(INET) if (SCTP_BASE_VAR(userspace_rawsctp) == -1) { if ((SCTP_BASE_VAR(userspace_rawsctp) = socket(AF_INET, SOCK_RAW, IPPROTO_SCTP)) == -1) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't create raw socket for IPv4 (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't create raw socket for IPv4 (errno = %d).\n", errno); #endif } else { /* complete setting up the raw SCTP socket */ if (setsockopt(SCTP_BASE_VAR(userspace_rawsctp), IPPROTO_IP, IP_HDRINCL,(const void*)&hdrincl, sizeof(int)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set IP_HDRINCL (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_rawsctp)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IP_HDRINCL (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_rawsctp)); #endif SCTP_BASE_VAR(userspace_rawsctp) = -1; } else if (setsockopt(SCTP_BASE_VAR(userspace_rawsctp), SOL_SOCKET, SO_RCVTIMEO, (const void *)&timeout, sizeof(timeout)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/IPv4 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_rawsctp)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/IPv4 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_rawsctp)); #endif SCTP_BASE_VAR(userspace_rawsctp) = -1; } else { memset((void *)&addr_ipv4, 0, sizeof(struct sockaddr_in)); #ifdef HAVE_SIN_LEN addr_ipv4.sin_len = sizeof(struct sockaddr_in); #endif addr_ipv4.sin_family = AF_INET; addr_ipv4.sin_port = htons(0); addr_ipv4.sin_addr.s_addr = htonl(INADDR_ANY); if (bind(SCTP_BASE_VAR(userspace_rawsctp), (const struct sockaddr *)&addr_ipv4, sizeof(struct sockaddr_in)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/IPv4 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_rawsctp)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/IPv4 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_rawsctp)); #endif SCTP_BASE_VAR(userspace_rawsctp) = -1; } else { setReceiveBufferSize(SCTP_BASE_VAR(userspace_rawsctp), SB_RAW); /* 128K */ setSendBufferSize(SCTP_BASE_VAR(userspace_rawsctp), SB_RAW); /* 128K Is this setting net.inet.raw.maxdgram value? Should it be set to 64K? */ } } } } if (SCTP_BASE_VAR(userspace_udpsctp) == -1) { if ((SCTP_BASE_VAR(userspace_udpsctp) = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't create socket for SCTP/UDP/IPv4 (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't create socket for SCTP/UDP/IPv4 (errno = %d).\n", errno); #endif } else { #if defined(IP_PKTINFO) if (setsockopt(SCTP_BASE_VAR(userspace_udpsctp), IPPROTO_IP, IP_PKTINFO, (const void *)&on, (int)sizeof(int)) < 0) { #else if (setsockopt(SCTP_BASE_VAR(userspace_udpsctp), IPPROTO_IP, IP_RECVDSTADDR, (const void *)&on, (int)sizeof(int)) < 0) { #endif #if defined(__Userspace_os_Windows) #if defined(IP_PKTINFO) SCTPDBG(SCTP_DEBUG_USR, "Can't set IP_PKTINFO on socket for SCTP/UDP/IPv4 (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IP_RECVDSTADDR on socket for SCTP/UDP/IPv4 (errno = %d).\n", WSAGetLastError()); #endif closesocket(SCTP_BASE_VAR(userspace_udpsctp)); #else #if defined(IP_PKTINFO) SCTPDBG(SCTP_DEBUG_USR, "Can't set IP_PKTINFO on socket for SCTP/UDP/IPv4 (errno = %d).\n", errno); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IP_RECVDSTADDR on socket for SCTP/UDP/IPv4 (errno = %d).\n", errno); #endif close(SCTP_BASE_VAR(userspace_udpsctp)); #endif SCTP_BASE_VAR(userspace_udpsctp) = -1; } else if (setsockopt(SCTP_BASE_VAR(userspace_udpsctp), SOL_SOCKET, SO_RCVTIMEO, (const void *)&timeout, sizeof(timeout)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/UDP/IPv4 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_udpsctp)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/UDP/IPv4 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_udpsctp)); #endif SCTP_BASE_VAR(userspace_udpsctp) = -1; } else { memset((void *)&addr_ipv4, 0, sizeof(struct sockaddr_in)); #ifdef HAVE_SIN_LEN addr_ipv4.sin_len = sizeof(struct sockaddr_in); #endif addr_ipv4.sin_family = AF_INET; addr_ipv4.sin_port = htons(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)); addr_ipv4.sin_addr.s_addr = htonl(INADDR_ANY); if (bind(SCTP_BASE_VAR(userspace_udpsctp), (const struct sockaddr *)&addr_ipv4, sizeof(struct sockaddr_in)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/UDP/IPv4 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_udpsctp)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/UDP/IPv4 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_udpsctp)); #endif SCTP_BASE_VAR(userspace_udpsctp) = -1; } else { setReceiveBufferSize(SCTP_BASE_VAR(userspace_udpsctp), SB_RAW); /* 128K */ setSendBufferSize(SCTP_BASE_VAR(userspace_udpsctp), SB_RAW); /* 128K Is this setting net.inet.raw.maxdgram value? Should it be set to 64K? */ } } } } #endif #if defined(INET6) if (SCTP_BASE_VAR(userspace_rawsctp6) == -1) { if ((SCTP_BASE_VAR(userspace_rawsctp6) = socket(AF_INET6, SOCK_RAW, IPPROTO_SCTP)) == -1) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't create socket for SCTP/IPv6 (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't create socket for SCTP/IPv6 (errno = %d).\n", errno); #endif } else { /* complete setting up the raw SCTP socket */ #if defined(IPV6_RECVPKTINFO) if (setsockopt(SCTP_BASE_VAR(userspace_rawsctp6), IPPROTO_IPV6, IPV6_RECVPKTINFO, (const void *)&on, sizeof(on)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_RECVPKTINFO on socket for SCTP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_rawsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_RECVPKTINFO on socket for SCTP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_rawsctp6)); #endif SCTP_BASE_VAR(userspace_rawsctp6) = -1; } else { #else if (setsockopt(SCTP_BASE_VAR(userspace_rawsctp6), IPPROTO_IPV6, IPV6_PKTINFO,(const void*)&on, sizeof(on)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_PKTINFO on socket for SCTP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_rawsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_PKTINFO on socket for SCTP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_rawsctp6)); #endif SCTP_BASE_VAR(userspace_rawsctp6) = -1; } else { #endif if (setsockopt(SCTP_BASE_VAR(userspace_rawsctp6), IPPROTO_IPV6, IPV6_V6ONLY, (const void*)&on, (socklen_t)sizeof(on)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_V6ONLY on socket for SCTP/IPv6 (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_V6ONLY on socket for SCTP/IPv6 (errno = %d).\n", errno); #endif } if (setsockopt(SCTP_BASE_VAR(userspace_rawsctp6), SOL_SOCKET, SO_RCVTIMEO, (const void *)&timeout, sizeof(timeout)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_rawsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_rawsctp6)); #endif SCTP_BASE_VAR(userspace_rawsctp6) = -1; } else { memset((void *)&addr_ipv6, 0, sizeof(struct sockaddr_in6)); #ifdef HAVE_SIN6_LEN addr_ipv6.sin6_len = sizeof(struct sockaddr_in6); #endif addr_ipv6.sin6_family = AF_INET6; addr_ipv6.sin6_port = htons(0); addr_ipv6.sin6_addr = in6addr_any; if (bind(SCTP_BASE_VAR(userspace_rawsctp6), (const struct sockaddr *)&addr_ipv6, sizeof(struct sockaddr_in6)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_rawsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_rawsctp6)); #endif SCTP_BASE_VAR(userspace_rawsctp6) = -1; } else { setReceiveBufferSize(SCTP_BASE_VAR(userspace_rawsctp6), SB_RAW); /* 128K */ setSendBufferSize(SCTP_BASE_VAR(userspace_rawsctp6), SB_RAW); /* 128K Is this setting net.inet.raw.maxdgram value? Should it be set to 64K? */ } } } } } if (SCTP_BASE_VAR(userspace_udpsctp6) == -1) { if ((SCTP_BASE_VAR(userspace_udpsctp6) = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP)) == -1) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't create socket for SCTP/UDP/IPv6 (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't create socket for SCTP/UDP/IPv6 (errno = %d).\n", errno); #endif } #if defined(IPV6_RECVPKTINFO) if (setsockopt(SCTP_BASE_VAR(userspace_udpsctp6), IPPROTO_IPV6, IPV6_RECVPKTINFO, (const void *)&on, (int)sizeof(int)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_RECVPKTINFO on socket for SCTP/UDP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_udpsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_RECVPKTINFO on socket for SCTP/UDP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_udpsctp6)); #endif SCTP_BASE_VAR(userspace_udpsctp6) = -1; } else { #else if (setsockopt(SCTP_BASE_VAR(userspace_udpsctp6), IPPROTO_IPV6, IPV6_PKTINFO, (const void *)&on, (int)sizeof(int)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_PKTINFO on socket for SCTP/UDP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_udpsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_PKTINFO on socket for SCTP/UDP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_udpsctp6)); #endif SCTP_BASE_VAR(userspace_udpsctp6) = -1; } else { #endif if (setsockopt(SCTP_BASE_VAR(userspace_udpsctp6), IPPROTO_IPV6, IPV6_V6ONLY, (const void *)&on, (socklen_t)sizeof(on)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_V6ONLY on socket for SCTP/UDP/IPv6 (errno = %d).\n", WSAGetLastError()); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set IPV6_V6ONLY on socket for SCTP/UDP/IPv6 (errno = %d).\n", errno); #endif } if (setsockopt(SCTP_BASE_VAR(userspace_udpsctp6), SOL_SOCKET, SO_RCVTIMEO, (const void *)&timeout, sizeof(timeout)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/UDP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_udpsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't set timeout on socket for SCTP/UDP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_udpsctp6)); #endif SCTP_BASE_VAR(userspace_udpsctp6) = -1; } else { memset((void *)&addr_ipv6, 0, sizeof(struct sockaddr_in6)); #ifdef HAVE_SIN6_LEN addr_ipv6.sin6_len = sizeof(struct sockaddr_in6); #endif addr_ipv6.sin6_family = AF_INET6; addr_ipv6.sin6_port = htons(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)); addr_ipv6.sin6_addr = in6addr_any; if (bind(SCTP_BASE_VAR(userspace_udpsctp6), (const struct sockaddr *)&addr_ipv6, sizeof(struct sockaddr_in6)) < 0) { #if defined(__Userspace_os_Windows) SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/UDP/IPv6 (errno = %d).\n", WSAGetLastError()); closesocket(SCTP_BASE_VAR(userspace_udpsctp6)); #else SCTPDBG(SCTP_DEBUG_USR, "Can't bind socket for SCTP/UDP/IPv6 (errno = %d).\n", errno); close(SCTP_BASE_VAR(userspace_udpsctp6)); #endif SCTP_BASE_VAR(userspace_udpsctp6) = -1; } else { setReceiveBufferSize(SCTP_BASE_VAR(userspace_udpsctp6), SB_RAW); /* 128K */ setSendBufferSize(SCTP_BASE_VAR(userspace_udpsctp6), SB_RAW); /* 128K Is this setting net.inet.raw.maxdgram value? Should it be set to 64K? */ } } } } #endif #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) #if defined(INET) || defined(INET6) if (SCTP_BASE_VAR(userspace_route) != -1) { int rc; if ((rc = sctp_userspace_thread_create(&SCTP_BASE_VAR(recvthreadroute), &recv_function_route))) { SCTPDBG(SCTP_DEBUG_USR, "Can't start routing thread (%d).\n", rc); close(SCTP_BASE_VAR(userspace_route)); SCTP_BASE_VAR(userspace_route) = -1; } } #endif #endif #if defined(INET) if (SCTP_BASE_VAR(userspace_rawsctp) != -1) { int rc; if ((rc = sctp_userspace_thread_create(&SCTP_BASE_VAR(recvthreadraw), &recv_function_raw))) { SCTPDBG(SCTP_DEBUG_USR, "Can't start SCTP/IPv4 recv thread (%d).\n", rc); #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_rawsctp)); #else close(SCTP_BASE_VAR(userspace_rawsctp)); #endif SCTP_BASE_VAR(userspace_rawsctp) = -1; } } if (SCTP_BASE_VAR(userspace_udpsctp) != -1) { int rc; if ((rc = sctp_userspace_thread_create(&SCTP_BASE_VAR(recvthreadudp), &recv_function_udp))) { SCTPDBG(SCTP_DEBUG_USR, "Can't start SCTP/UDP/IPv4 recv thread (%d).\n", rc); #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_udpsctp)); #else close(SCTP_BASE_VAR(userspace_udpsctp)); #endif SCTP_BASE_VAR(userspace_udpsctp) = -1; } } #endif #if defined(INET6) if (SCTP_BASE_VAR(userspace_rawsctp6) != -1) { int rc; if ((rc = sctp_userspace_thread_create(&SCTP_BASE_VAR(recvthreadraw6), &recv_function_raw6))) { SCTPDBG(SCTP_DEBUG_USR, "Can't start SCTP/IPv6 recv thread (%d).\n", rc); #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_rawsctp6)); #else close(SCTP_BASE_VAR(userspace_rawsctp6)); #endif SCTP_BASE_VAR(userspace_rawsctp6) = -1; } } if (SCTP_BASE_VAR(userspace_udpsctp6) != -1) { int rc; if ((rc = sctp_userspace_thread_create(&SCTP_BASE_VAR(recvthreadudp6), &recv_function_udp6))) { SCTPDBG(SCTP_DEBUG_USR, "Can't start SCTP/UDP/IPv6 recv thread (%d).\n", rc); #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_udpsctp6)); #else close(SCTP_BASE_VAR(userspace_udpsctp6)); #endif SCTP_BASE_VAR(userspace_udpsctp6) = -1; } } #endif } void recv_thread_destroy(void) { #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) #if defined(INET) || defined(INET6) if (SCTP_BASE_VAR(userspace_route) != -1) { close(SCTP_BASE_VAR(userspace_route)); } #endif #endif #if defined(INET) if (SCTP_BASE_VAR(userspace_rawsctp) != -1) { #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_rawsctp)); #else close(SCTP_BASE_VAR(userspace_rawsctp)); #endif } if (SCTP_BASE_VAR(userspace_udpsctp) != -1) { #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_udpsctp)); #else close(SCTP_BASE_VAR(userspace_udpsctp)); #endif } #endif #if defined(INET6) if (SCTP_BASE_VAR(userspace_rawsctp6) != -1) { #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_rawsctp6)); #else close(SCTP_BASE_VAR(userspace_rawsctp6)); #endif } if (SCTP_BASE_VAR(userspace_udpsctp6) != -1) { #if defined(__Userspace_os_Windows) closesocket(SCTP_BASE_VAR(userspace_udpsctp6)); #else close(SCTP_BASE_VAR(userspace_udpsctp6)); #endif } #endif } #else int foo; #endif