1 files changed, 39 insertions, 21 deletions

diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index 1925e0c3f162..397921b09ef9 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -40,26 +40,36 @@
  * PPPoE addressing definition 
  */ 
 typedef __be16 sid_t;
-struct pppoe_addr{ 
-       sid_t           sid;                    /* Session identifier */ 
-       unsigned char   remote[ETH_ALEN];       /* Remote address */ 
-       char            dev[IFNAMSIZ];          /* Local device to use */ 
+struct pppoe_addr {
+        sid_t         sid;                    /* Session identifier */
+        unsigned char remote[ETH_ALEN];       /* Remote address */
+        char          dev[IFNAMSIZ];          /* Local device to use */
 }; 
  
 /************************************************************************ 
- * Protocols supported by AF_PPPOX 
- */ 
+ * PPTP addressing definition
+ */
+struct pptp_addr {
+        __be16          call_id;
+        struct in_addr  sin_addr;
+};
+
+/************************************************************************
+ * Protocols supported by AF_PPPOX
+ */
 #define PX_PROTO_OE    0 /* Currently just PPPoE */
 #define PX_PROTO_OL2TP 1 /* Now L2TP also */
-#define PX_MAX_PROTO   2
+#define PX_PROTO_PPTP  2
+#define PX_MAX_PROTO   3
 
-struct sockaddr_pppox { 
-       sa_family_t     sa_family;            /* address family, AF_PPPOX */ 
-       unsigned int    sa_protocol;          /* protocol identifier */ 
-       union{ 
-               struct pppoe_addr       pppoe; 
-       }sa_addr; 
-} __packed;
+struct sockaddr_pppox {
+        sa_family_t     sa_family;            /* address family, AF_PPPOX */
+        unsigned int    sa_protocol;          /* protocol identifier */
+        union {
+                struct pppoe_addr  pppoe;
+                struct pptp_addr   pptp;
+        } 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
@@ -70,7 +80,7 @@ struct sockaddr_pppol2tp {
         sa_family_t     sa_family;      /* address family, AF_PPPOX */
         unsigned int    sa_protocol;    /* protocol identifier */
         struct pppol2tp_addr pppol2tp;
-} __packed;
+} __attribute__((packed));
 
 /* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
  * bits. So we need a different sockaddr structure.
@@ -79,7 +89,7 @@ struct sockaddr_pppol2tpv3 {
         sa_family_t     sa_family;      /* address family, AF_PPPOX */
         unsigned int    sa_protocol;    /* protocol identifier */
         struct pppol2tpv3_addr pppol2tp;
-} __packed;
+} __attribute__((packed));
 
 /*********************************************************************
  *
@@ -101,7 +111,7 @@ struct pppoe_tag {
         __be16 tag_type;
         __be16 tag_len;
         char tag_data[0];
-} __attribute ((packed));
+} __attribute__ ((packed));
 
 /* Tag identifiers */
 #define PTT_EOL         __cpu_to_be16(0x0000)
@@ -129,7 +139,7 @@ struct pppoe_hdr {
         __be16 sid;
         __be16 length;
         struct pppoe_tag tag[0];
-} __packed;
+} __attribute__((packed));
 
 /* Length of entire PPPoE + PPP header */
 #define PPPOE_SES_HLEN  8
@@ -150,15 +160,23 @@ struct pppoe_opt {
                                              relayed to (PPPoE relaying) */
 };
 
+struct pptp_opt {
+        struct pptp_addr src_addr;
+        struct pptp_addr dst_addr;
+        u32 ack_sent, ack_recv;
+        u32 seq_sent, seq_recv;
+        int ppp_flags;
+};
 #include <net/sock.h>
 
 struct pppox_sock {
         /* struct sock must be the first member of pppox_sock */
-        struct sock             sk;
-        struct ppp_channel      chan;
+        struct sock sk;
+        struct ppp_channel chan;
         struct pppox_sock       *next;    /* for hash table */
         union {
                 struct pppoe_opt pppoe;
+                struct pptp_opt  pptp;
         } proto;
         __be16                  num;
 };
@@ -186,7 +204,7 @@ struct pppox_proto {
         struct module   *owner;
 };
 
-extern int register_pppox_proto(int proto_num, struct pppox_proto *pp);
+extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
 extern void unregister_pppox_proto(int proto_num);
 extern void pppox_unbind_sock(struct sock *sk);/* delete ppp-channel binding */
 extern int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);