Phonet: Pipe End Point for Phonet Pipes protocol
[linux-2.6.git] / include / net / phonet / pep.h
index b2f8c54..fb024e1 100644 (file)
 struct pep_sock {
        struct pn_sock          pn_sk;
 
+       /* XXX: union-ify listening vs connected stuff ? */
        /* Listening socket stuff: */
        struct hlist_head       ackq;
+       struct hlist_head       hlist;
 
        /* Connected socket stuff: */
+       struct sock             *listener;
+       u16                     peer_type;      /* peer type/subtype */
+       u8                      pipe_handle;
+
+       u8                      rx_credits;
        u8                      tx_credits;
+       u8                      rx_fc;  /* RX flow control */
+       u8                      tx_fc;  /* TX flow control */
+       u8                      init_enable;    /* auto-enable at creation */
 };
 
 static inline struct pep_sock *pep_sk(struct sock *sk)
@@ -40,4 +50,108 @@ static inline struct pep_sock *pep_sk(struct sock *sk)
 
 extern const struct proto_ops phonet_stream_ops;
 
+/* Pipe protocol definitions */
+struct pnpipehdr {
+       u8                      utid; /* transaction ID */
+       u8                      message_id;
+       u8                      pipe_handle;
+       union {
+               u8              state_after_connect;    /* connect request */
+               u8              state_after_reset;      /* reset request */
+               u8              error_code;             /* any response */
+               u8              pep_type;               /* status indication */
+               u8              data[1];
+       };
+};
+#define other_pep_type         data[1]
+
+static inline struct pnpipehdr *pnp_hdr(struct sk_buff *skb)
+{
+       return (struct pnpipehdr *)skb_transport_header(skb);
+}
+
+#define MAX_PNPIPE_HEADER (MAX_PHONET_HEADER + 4)
+
+enum {
+       PNS_PIPE_DATA = 0x20,
+
+       PNS_PEP_CONNECT_REQ = 0x40,
+       PNS_PEP_CONNECT_RESP,
+       PNS_PEP_DISCONNECT_REQ,
+       PNS_PEP_DISCONNECT_RESP,
+       PNS_PEP_RESET_REQ,
+       PNS_PEP_RESET_RESP,
+       PNS_PEP_ENABLE_REQ,
+       PNS_PEP_ENABLE_RESP,
+       PNS_PEP_CTRL_REQ,
+       PNS_PEP_CTRL_RESP,
+       PNS_PEP_DISABLE_REQ = 0x4C,
+       PNS_PEP_DISABLE_RESP,
+
+       PNS_PEP_STATUS_IND = 0x60,
+       PNS_PIPE_CREATED_IND,
+       PNS_PIPE_RESET_IND = 0x63,
+       PNS_PIPE_ENABLED_IND,
+       PNS_PIPE_REDIRECTED_IND,
+       PNS_PIPE_DISABLED_IND = 0x66,
+};
+
+#define PN_PIPE_INVALID_HANDLE 0xff
+#define PN_PEP_TYPE_COMMON     0x00
+
+/* Phonet pipe status indication */
+enum {
+       PN_PEP_IND_FLOW_CONTROL,
+       PN_PEP_IND_ID_MCFC_GRANT_CREDITS,
+};
+
+/* Phonet pipe error codes */
+enum {
+       PN_PIPE_NO_ERROR,
+       PN_PIPE_ERR_INVALID_PARAM,
+       PN_PIPE_ERR_INVALID_HANDLE,
+       PN_PIPE_ERR_INVALID_CTRL_ID,
+       PN_PIPE_ERR_NOT_ALLOWED,
+       PN_PIPE_ERR_PEP_IN_USE,
+       PN_PIPE_ERR_OVERLOAD,
+       PN_PIPE_ERR_DEV_DISCONNECTED,
+       PN_PIPE_ERR_TIMEOUT,
+       PN_PIPE_ERR_ALL_PIPES_IN_USE,
+       PN_PIPE_ERR_GENERAL,
+       PN_PIPE_ERR_NOT_SUPPORTED,
+};
+
+/* Phonet pipe states */
+enum {
+       PN_PIPE_DISABLE,
+       PN_PIPE_ENABLE,
+};
+
+/* Phonet pipe sub-block types */
+enum {
+       PN_PIPE_SB_CREATE_REQ_PEP_SUB_TYPE,
+       PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE,
+       PN_PIPE_SB_REDIRECT_REQ_PEP_SUB_TYPE,
+       PN_PIPE_SB_NEGOTIATED_FC,
+       PN_PIPE_SB_REQUIRED_FC_TX,
+       PN_PIPE_SB_PREFERRED_FC_RX,
+};
+
+/* Phonet pipe flow control models */
+enum {
+       PN_NO_FLOW_CONTROL,
+       PN_LEGACY_FLOW_CONTROL,
+       PN_ONE_CREDIT_FLOW_CONTROL,
+       PN_MULTI_CREDIT_FLOW_CONTROL,
+};
+
+#define pn_flow_safe(fc) ((fc) >> 1)
+
+/* Phonet pipe flow control states */
+enum {
+       PEP_IND_EMPTY,
+       PEP_IND_BUSY,
+       PEP_IND_READY,
+};
+
 #endif