make adjustments for v6 of the qemu NFS driver

[deb_libnfs.git] / lib / socket.c

diff --git a/lib/socket.c b/lib/socket.c
index 762dbfac2fc5d5ff092b5ade6a205d0900f6933e..152dfb4a44df57528ccc7106348bcf32afb14764 100644 (file)
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -46,6 +46,10 @@
 #include <sys/socket.h>
 #endif
 
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+
 #ifdef HAVE_NETDB_H
 #include <netdb.h>
 #endif
@@ -92,6 +96,26 @@ static void set_nonblocking(int fd)
 #endif //FIXME
 }
 
+#ifdef HAVE_NETINET_TCP_H
+int set_tcp_sockopt(int sockfd, int optname, int value)
+{
+       int level;
+
+       #if defined(__FreeBSD__) || defined(__sun) || (defined(__APPLE__) && defined(__MACH__))
+       struct protoent *buf;
+
+       if ((buf = getprotobyname("tcp")) != NULL)
+               level = buf->p_proto;
+       else
+               return -1;
+       #else
+               level = SOL_TCP;
+       #endif
+
+       return setsockopt(sockfd, level, optname, (char *)&value, sizeof(value));
+}
+#endif
+
 int rpc_get_fd(struct rpc_context *rpc)
 {
        assert(rpc->magic == RPC_CONTEXT_MAGIC);
@@ -368,6 +392,17 @@ void rpc_unset_autoreconnect(struct rpc_context *rpc)
        rpc->auto_reconnect = 0;
 }
 
+void rpc_set_tcp_syncnt(struct rpc_context *rpc, int v)
+{
+       assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+       rpc->tcp_syncnt = v;
+}
+
+#ifndef TCP_SYNCNT
+#define TCP_SYNCNT        7
+#endif
+
 static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_storage *s)
 {
        int socksize;
@@ -378,6 +413,11 @@ static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_s
        case AF_INET:
                socksize = sizeof(struct sockaddr_in);
                rpc->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+#ifdef HAVE_NETINET_TCP_H
+               if (rpc->tcp_syncnt != RPC_PARAM_UNDEFINED) {
+                       set_tcp_sockopt(rpc->fd, TCP_SYNCNT, rpc->tcp_syncnt);
+               }
+#endif
                break;
        default:
                rpc_set_error(rpc, "Can not handle AF_FAMILY:%d", s->ss_family);