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Nagram/TMessagesProj/jni/third_party/usrsctplib/user_recv_thread.c

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Update to 7.0.0 (2060)
2020-08-14 16:58:22 +00:00
/*-
* 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 <sys/types.h>
#if !defined(__Userspace_os_Windows)
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <pthread.h>
#if !defined(__Userspace_os_DragonFly) && !defined(__Userspace_os_FreeBSD) && !defined(__Userspace_os_NetBSD)
#include <sys/uio.h>
#else
#include <user_ip6_var.h>
#endif
#endif
#include <netinet/sctp_os.h>
#include <netinet/sctp_var.h>
#include <netinet/sctp_pcb.h>
#include <netinet/sctp_input.h>
#if 0
#if defined(__Userspace_os_Linux)
#include <linux/netlink.h>
#ifdef HAVE_LINUX_IF_ADDR_H
#include <linux/if_addr.h>
#endif
#ifdef HAVE_LINUX_RTNETLINK_H
#include <linux/rtnetlink.h>
#endif
#endif
#endif
#if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD)
#include <net/route.h>
#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
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