113 lines
4.0 KiB
C
113 lines
4.0 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <time.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/it_q.h>
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#include <osmocom/gsm/protocol/gsm_48_049.h>
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#include <osmocom/gsm/gsm23003.h>
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/*********************************************************************************
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* CBC Message
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*********************************************************************************/
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/* a single SMSCB page of 82 user bytes (excluding any GSM specific header) */
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#define SMSCB_RAW_PAGE_LEN 82
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#define SMSCB_MAX_NUM_PAGES 15
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/* representation of a plain SMSCB message without any metadata such as cell lists */
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struct smscb_message {
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uint16_t message_id;
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uint16_t serial_nr;
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bool is_etws;
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union {
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struct {
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/* data coding scheme */
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uint8_t dcs;
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/* number of pages containing valid information */
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unsigned int num_pages;
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/* actual page data, concatenated */
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uint8_t data[SMSCB_MAX_NUM_PAGES][SMSCB_RAW_PAGE_LEN];
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/* total number of octets user data over _all_ the pages */
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uint16_t data_user_len;
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} cbs;
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struct {
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/* WarningTypeValue 7bit parameter as per 23.041 9.3.24 */
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uint16_t warning_type;
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/* Emergency User Alert */
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bool user_alert;
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/* Popup on Display */
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bool popup_on_display;
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uint8_t warning_sec_info[50];
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} etws;
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};
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};
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enum cbc_message_scope {
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CBC_MSG_SCOPE_PLMN,
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/* FIXME: more local/regional scopes than PLMN-wide */
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};
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/* link between a SMSCB message and a peer (BSC, RNC, MME) */
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struct cbc_message_peer {
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struct llist_head list; /* lined to cbc_message.peers */
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/* 'cbcmsg' is not really needed, as the fsm instance parent points to
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* the fsm instance of cbc_message, so we could also dereference those */
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struct cbc_message *cbcmsg; /* the SMSCB this relates to */
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struct cbc_peer *peer; /* the peer thos relates to */
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struct osmo_fsm_inst *fi; /* the FSM instance representing our state */
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/* cells in which this message has been established/installed */
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struct llist_head cell_list;
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/* cells in which this message has NOT been established/installed */
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struct llist_head fail_list;
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/* number of broadcasts completed in cells of this peer */
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struct llist_head num_compl_list;
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};
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/* internal representation of a CBC message */
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struct cbc_message {
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struct llist_head list; /* global list of currently active CBCs */
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const char *cbe_name; /* name of the CBE originating this SMSCB */
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enum cbsp_category priority;
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uint16_t rep_period; /* repetition period (1..4095) in units of 1.883s */
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bool extended_cbch; /* basic (false) or extended (true) CBCH */
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uint32_t warning_period_sec; /* warning period in seconds (0xffffffff = unlimited) */
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uint16_t num_bcast; /* number of broadcasts requested (0=unlimited) */
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enum cbc_message_scope scope;
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/* FIXME: data for other scopes than PLMN-wide */
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/* SMSCB message with id, serial, dcs, pages, ... */
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struct smscb_message msg;
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struct osmo_fsm_inst *fi; /* FSM instance (smscb_message_fsm) */
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/* CBC peers (BSCs, RNCs, MMEs) to which this message has already been sent */
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struct llist_head peers;
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struct rest_it_op *it_op; /* inter-thread queue operation currently processing */
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struct {
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time_t created; /* when was this message created? */
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time_t expired; /* when has this message expired? */
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} time;
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};
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struct cbc_message *cbc_message_alloc(void *ctx, const struct cbc_message *cbcmsg);
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void cbc_message_free(struct cbc_message *cbcmsg);
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int cbc_message_new(const struct cbc_message *cbcmsg, struct rest_it_op *op);
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void cbc_message_delete(struct cbc_message *cbcmsg, struct rest_it_op *op);
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struct cbc_message *cbc_message_by_id(uint16_t message_id);
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struct cbc_message *cbc_message_expired_by_id(uint16_t message_id);
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int peer_new_cbc_message(struct cbc_peer *peer, struct cbc_message *cbcmsg);
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int cbc_message_del_peer(struct cbc_message *cbcmsg, struct cbc_peer *peer);
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int cbc_message_add_peer(struct cbc_message *cbcmsg, struct cbc_peer *peer);
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struct cbc_message_peer *smscb_peer_fsm_alloc(struct cbc_peer *peer, struct cbc_message *cbcmsg);
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struct cbc_message_peer *cbc_message_peer_get(struct cbc_message *cbcmsg, struct cbc_peer *peer);
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