[L2TP]: Changes to existing ppp and socket kernel headers for L2TP

[linux-2.6-omap-h63xx.git] / include / linux / if_pppox.h

diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index 6f987be60fe26ed7cf36287f42a60f5a2fc3f557..25652545ba6e19683a9efff8172ec83d4b98efd4 100644 (file)
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -27,6 +27,7 @@
 #include <asm/semaphore.h>
 #include <linux/ppp_channel.h>
 #endif /* __KERNEL__ */
+#include <linux/if_pppol2tp.h>
 
 /* For user-space programs to pick up these definitions
  * which they wouldn't get otherwise without defining __KERNEL__
@@ -50,8 +51,9 @@ struct pppoe_addr{
  * Protocols supported by AF_PPPOX 
  */ 
 #define PX_PROTO_OE    0 /* Currently just PPPoE */
-#define PX_MAX_PROTO   1       
- 
+#define PX_PROTO_OL2TP 1 /* Now L2TP also */
+#define PX_MAX_PROTO   2
+
 struct sockaddr_pppox { 
        sa_family_t     sa_family;            /* address family, AF_PPPOX */ 
        unsigned int    sa_protocol;          /* protocol identifier */ 
@@ -60,6 +62,16 @@ struct sockaddr_pppox {
        }sa_addr; 
 }__attribute__ ((packed)); 
 
+/* The use of the above union isn't viable because the size of this
+ * struct must stay fixed over time -- applications use sizeof(struct
+ * sockaddr_pppox) to fill it. We use a protocol specific sockaddr
+ * type instead.
+ */
+struct sockaddr_pppol2tp {
+       sa_family_t     sa_family;      /* address family, AF_PPPOX */
+       unsigned int    sa_protocol;    /* protocol identifier */
+       struct pppol2tp_addr pppol2tp;
+}__attribute__ ((packed));
 
 /*********************************************************************
  *