include/net/phonet/pep.h

Source file repositories/reference/linux-study-clean/include/net/phonet/pep.h

File Facts

System
Linux kernel
Corpus path
include/net/phonet/pep.h
Extension
.h
Size
3291 bytes
Lines
160
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

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		data0;			/* anything else */
	};
	u8			data[];
};
#define other_pep_type		data[0]

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_CREATE_REQ = 0x00,
	PNS_PIPE_CREATE_RESP,
	PNS_PIPE_REMOVE_REQ,
	PNS_PIPE_REMOVE_RESP,

	PNS_PIPE_DATA = 0x20,
	PNS_PIPE_ALIGNED_DATA,

	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,

Annotation

Implementation Notes