139 lines
3.0 KiB
C
139 lines
3.0 KiB
C
#ifndef _SGSN_H
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#define _SGSN_H
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#include <osmocom/core/msgb.h>
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#include <osmocom/gprs/gprs_ns.h>
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#include <openbsc/gprs_sgsn.h>
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#include <openbsc/oap.h>
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#include <ares.h>
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struct gprs_gsup_client;
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struct hostent;
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enum sgsn_auth_policy {
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SGSN_AUTH_POLICY_OPEN,
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SGSN_AUTH_POLICY_CLOSED,
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SGSN_AUTH_POLICY_ACL_ONLY,
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SGSN_AUTH_POLICY_REMOTE
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};
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struct sgsn_cdr {
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char *filename;
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int interval;
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};
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struct sgsn_config {
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/* parsed from config file */
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char *gtp_statedir;
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struct sockaddr_in gtp_listenaddr;
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/* misc */
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struct gprs_ns_inst *nsi;
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enum sgsn_auth_policy auth_policy;
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struct llist_head imsi_acl;
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struct sockaddr_in gsup_server_addr;
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int gsup_server_port;
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int require_authentication;
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int require_update_location;
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/* CDR configuration */
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struct sgsn_cdr cdr;
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struct {
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int T3312;
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int T3322;
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int T3350;
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int T3360;
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int T3370;
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int T3313;
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int T3314;
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int T3316;
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int T3385;
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int T3386;
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int T3395;
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int T3397;
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} timers;
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int dynamic_lookup;
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struct oap_config oap;
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};
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struct sgsn_instance {
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char *config_file;
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struct sgsn_config cfg;
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/* File descriptor wrappers for LibGTP */
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struct osmo_fd gtp_fd0;
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struct osmo_fd gtp_fd1c;
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struct osmo_fd gtp_fd1u;
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/* Timer for libGTP */
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struct osmo_timer_list gtp_timer;
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/* GSN instance for libgtp */
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struct gsn_t *gsn;
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/* Subscriber */
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struct gprs_gsup_client *gsup_client;
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/* LLME inactivity timer */
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struct osmo_timer_list llme_timer;
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/* c-ares event loop integration */
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struct osmo_timer_list ares_timer;
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struct llist_head ares_fds;
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ares_channel ares_channel;
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struct ares_addr_node *ares_servers;
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};
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extern struct sgsn_instance *sgsn;
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/* sgsn_vty.c */
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int sgsn_vty_init(void);
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int sgsn_parse_config(const char *config_file, struct sgsn_config *cfg);
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/* sgsn.c */
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/* Main input function for Gb proxy */
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int sgsn_rcvmsg(struct msgb *msg, struct gprs_nsvc *nsvc, uint16_t ns_bvci);
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struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn,
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struct sgsn_mm_ctx *mmctx,
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uint16_t nsapi,
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struct tlv_parsed *tp);
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int sgsn_delete_pdp_ctx(struct sgsn_pdp_ctx *pctx);
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/* gprs_sndcp.c */
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/* Entry point for the SNSM-ACTIVATE.indication */
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int sndcp_sm_activate_ind(struct gprs_llc_lle *lle, uint8_t nsapi);
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/* Entry point for the SNSM-DEACTIVATE.indication */
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int sndcp_sm_deactivate_ind(struct gprs_llc_lle *lle, uint8_t nsapi);
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/* Called by SNDCP when it has received/re-assembled a N-PDU */
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int sgsn_rx_sndcp_ud_ind(struct gprs_ra_id *ra_id, int32_t tlli, uint8_t nsapi,
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struct msgb *msg, uint32_t npdu_len, uint8_t *npdu);
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int sndcp_unitdata_req(struct msgb *msg, struct gprs_llc_lle *lle, uint8_t nsapi,
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void *mmcontext);
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int sndcp_llunitdata_ind(struct msgb *msg, struct gprs_llc_lle *lle,
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uint8_t *hdr, uint16_t len);
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/*
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* CDR related functionality
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*/
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int sgsn_cdr_init(struct sgsn_instance *sgsn);
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/*
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* C-ARES related functionality
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*/
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int sgsn_ares_init(struct sgsn_instance *sgsn);
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int sgsn_ares_query(struct sgsn_instance *sgsm, const char *name, ares_host_callback cb, void *data);
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#endif
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