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[Qemu-devel] [PATCH RFC 1/4] slirp: add helper for tcp6 socket creation
From: |
Maxim Samoylov |
Subject: |
[Qemu-devel] [PATCH RFC 1/4] slirp: add helper for tcp6 socket creation |
Date: |
Fri, 26 Oct 2018 03:03:40 +0300 |
Signed-off-by: Maxim Samoylov <address@hidden>
---
slirp/socket.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
slirp/socket.h | 2 ++
2 files changed, 75 insertions(+)
diff --git a/slirp/socket.c b/slirp/socket.c
index 322383a..e16e6c1 100644
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -776,6 +776,79 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport,
uint32_t laddr,
return so;
}
+struct socket *
+tcp6_listen(Slirp *slirp, struct in6_addr haddr, u_int hport,
+ struct in6_addr laddr, u_int lport, int flags)
+{
+ struct sockaddr_in6 addr;
+ struct socket *so;
+ int s, opt = 1;
+ socklen_t addrlen = sizeof(addr);
+ memset(&addr, 0, addrlen);
+
+ /* The same flow as in tcp_listen above */
+
+ so = socreate(slirp);
+ if (!so) {
+ return NULL;
+ }
+
+ so->so_tcpcb = tcp_newtcpcb(so);
+ if (so->so_tcpcb == NULL) {
+ free(so);
+ return NULL;
+ }
+
+ insque(so, &slirp->tcb);
+
+ if (flags & SS_FACCEPTONCE) {
+ so->so_tcpcb->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT * 2;
+ }
+
+ so->so_state &= SS_PERSISTENT_MASK;
+ so->so_state |= (SS_FACCEPTCONN | flags);
+ so->so_lfamily = AF_INET6;
+ so->so_lport6 = lport; /* Kept in network format */
+ so->so_laddr6 = laddr;
+
+ addr.sin6_family = AF_INET6;
+ addr.sin6_addr = haddr;
+ addr.sin6_port = hport;
+
+ s = qemu_socket(AF_INET6, SOCK_STREAM, 0);
+ if ((s < 0) ||
+ (socket_set_fast_reuse(s) < 0) ||
+ (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) ||
+ (listen(s, 1) < 0)) {
+ int tmperrno = errno; /* Don't clobber the real reason we failed */
+ if (s >= 0) {
+ closesocket(s);
+ }
+ sofree(so);
+ /* Restore the real errno */
+#ifdef _WIN32
+ WSASetLastError(tmperrno);
+#else
+ errno = tmperrno;
+#endif
+ return NULL;
+ }
+ qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
+
+ getsockname(s, (struct sockaddr *)&addr, &addrlen);
+ so->fhost.sin6 = addr;
+
+ if (!memcmp(&addr.sin6_addr, &in6addr_any, sizeof(in6addr_any)) ||
+ !memcmp(&addr.sin6_addr, &in6addr_loopback,
+ sizeof(in6addr_loopback))) {
+
+ memcpy(&so->so_faddr6, &slirp->vhost_addr6,
sizeof(slirp->vhost_addr6));
+ }
+
+ so->s = s;
+ return so;
+}
+
/*
* Various session state calls
* XXX Should be #define's
diff --git a/slirp/socket.h b/slirp/socket.h
index 2f224bc..b200bb6 100644
--- a/slirp/socket.h
+++ b/slirp/socket.h
@@ -144,6 +144,8 @@ void sorecvfrom(struct socket *);
int sosendto(struct socket *, struct mbuf *);
struct socket * tcp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
int);
+struct socket *tcp6_listen(Slirp *, struct in6_addr, u_int,
+ struct in6_addr, u_int, int);
void soisfconnecting(register struct socket *);
void soisfconnected(register struct socket *);
void sofwdrain(struct socket *);
--
2.7.4