slirp: Factor out internal state structure

The essence of this patch is to stuff (almost) all global variables of
the slirp stack into the structure Slirp. In this step, we still keep
the structure as global variable, directly accessible by the whole
stack. Changes to the external interface of slirp will be applied in
the following patches.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/slirp/socket.h b/slirp/socket.h
index 4db2147aa8..dcf27430b2 100644
--- a/slirp/socket.h
+++ b/slirp/socket.h
@@ -20,6 +20,8 @@ struct socket {
 
   int s;                           /* The actual socket */
 
+  Slirp *slirp;			   /* managing slirp instance */
+
 			/* XXX union these with not-yet-used sbuf params */
   struct mbuf *so_m;	           /* Pointer to the original SYN packet,
 				    * for non-blocking connect()'s, and
@@ -72,10 +74,8 @@ struct socket {
 #define SS_HOSTFWD		0x1000	/* Socket describes host->guest forwarding */
 #define SS_INCOMING		0x2000	/* Connection was initiated by a host on the internet */
 
-extern struct socket tcb;
-
 struct socket * solookup _P((struct socket *, struct in_addr, u_int, struct in_addr, u_int));
-struct socket * socreate _P((void));
+struct socket * socreate _P((Slirp *));
 void sofree _P((struct socket *));
 int soread _P((struct socket *));
 void sorecvoob _P((struct socket *));
@@ -83,7 +83,8 @@ int sosendoob _P((struct socket *));
 int sowrite _P((struct socket *));
 void sorecvfrom _P((struct socket *));
 int sosendto _P((struct socket *, struct mbuf *));
-struct socket * tcp_listen _P((u_int32_t, u_int, u_int32_t, u_int, int));
+struct socket * tcp_listen _P((Slirp *, u_int32_t, u_int, u_int32_t, u_int,
+                               int));
 void soisfconnecting _P((register struct socket *));
 void soisfconnected _P((register struct socket *));
 void sofwdrain _P((struct socket *));