47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/timer.h>
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#include "../gtp/pdp.h"
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struct ggsn_ctx;
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struct pdp_priv_t;
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struct sgsn_peer {
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struct llist_head entry; /* to be included into ggsn_ctx */
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struct ggsn_ctx *ggsn; /* backpointer to ggsn_ctx */
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struct in_addr addr; /* Addr of the sgsn peer */
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unsigned int gtp_version; /* GTP version */
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int remote_restart_ctr; /* Last received Restart Ctr from sgsn peer, -1 == unknown */
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/* list of pdp contexts associated with this sgsn */
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struct llist_head pdp_list;
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/* Sends echo request towards SGSN on expiration. Echo Resp is received
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through cb_recovery2(), and echo Req timeout through
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cb_conf(GTP_ECHO_REQ, EOF, NULL, cbp); */
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struct osmo_timer_list echo_timer;
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/* Number of GTP messages in libgtp transmit queue */
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unsigned int tx_msgs_queued;
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};
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struct sgsn_peer *sgsn_peer_allocate(struct ggsn_ctx *ggsn, struct in_addr *ia, unsigned int gtp_version);
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void sgsn_peer_add_pdp_priv(struct sgsn_peer *sgsn, struct pdp_priv_t *pdp_priv);
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void sgsn_peer_remove_pdp_priv(struct pdp_priv_t *pdp_priv);
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void sgsn_echo_timer_start(struct sgsn_peer *sgsn);
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void sgsn_echo_timer_stop(struct sgsn_peer *sgsn);
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void sgsn_peer_echo_resp(struct sgsn_peer *sgsn, bool timeout);
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unsigned int sgsn_peer_drop_all_pdp(struct sgsn_peer *sgsn);
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int sgsn_peer_handle_recovery(struct sgsn_peer *sgsn, struct pdp_t *pdp, uint8_t recovery);
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#define LOGSGSN(level, sgsn, fmt, args...) { \
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char _buf[INET_ADDRSTRLEN]; \
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LOGP(DGGSN, level, "SGSN(%s): " fmt, inet_ntop(AF_INET, &sgsn->addr, _buf, sizeof(_buf)), ## args); \
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} while (0)
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