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#pragma once
/*! \defgroup prim Osmocom primitives
* @{
*/
/*! \file prim.h */
#include <stdint.h>
#include <osmocom/core/msgb.h>
#define OSMO_PRIM(prim, op) ((prim << 8) | (op & 0xFF))
#define OSMO_PRIM_HDR(oph) OSMO_PRIM((oph)->primitive, (oph)->operation)
/*! \brief primitive operation */
enum osmo_prim_operation {
PRIM_OP_REQUEST, /*!< \brief request */
PRIM_OP_RESPONSE, /*!< \brief response */
PRIM_OP_INDICATION, /*!< \brief indication */
PRIM_OP_CONFIRM, /*!< \brief confirm */
};
extern const struct value_string osmo_prim_op_names[5];
#define _SAP_GSM_SHIFT 24
#define _SAP_GSM_BASE (0x01 << _SAP_GSM_SHIFT)
#define _SAP_TETRA_BASE (0x02 << _SAP_GSM_SHIFT)
#define _SAP_SS7_BASE (0x03 << _SAP_GSM_SHIFT)
/*! \brief primitive header */
struct osmo_prim_hdr {
unsigned int sap; /*!< \brief Service Access Point */
unsigned int primitive; /*!< \brief Primitive number */
enum osmo_prim_operation operation; /*! \brief Primitive Operation */
struct msgb *msg; /*!< \brief \ref msgb containing associated data */
};
/*! \brief initialize a primitive header
* \param[in,out] oph primitive header
* \param[in] sap Service Access Point
* \param[in] primitive Primitive Number
* \param[in] operation Primitive Operation (REQ/RESP/IND/CONF)
* \param[in] msg Message
*/
static inline void
osmo_prim_init(struct osmo_prim_hdr *oph, unsigned int sap,
unsigned int primitive, enum osmo_prim_operation operation,
struct msgb *msg)
{
oph->sap = sap;
oph->primitive = primitive;
oph->operation = operation;
oph->msg = msg;
}
/*! \brief primitive handler callback type */
typedef int (*osmo_prim_cb)(struct osmo_prim_hdr *oph, void *ctx);
/*! \brief magic value to be used as final record of \ref
* osmo_prim_event_map */
#define OSMO_NO_EVENT 0xFFFFFFFF
/*! \brief single entry in a SAP/PRIM/OP -> EVENT map */
struct osmo_prim_event_map {
unsigned int sap; /*!< SAP to match */
unsigned int primitive; /*!< primtiive to match */
enum osmo_prim_operation operation; /*!< operation to match */
uint32_t event; /*!< event as result if above match */
};
uint32_t osmo_event_for_prim(const struct osmo_prim_hdr *oph,
const struct osmo_prim_event_map *maps);
/*! @} */
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