diff options
Diffstat (limited to 'ggsn/sgsn.h')
| -rw-r--r-- | ggsn/sgsn.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/ggsn/sgsn.h b/ggsn/sgsn.h new file mode 100644 index 0000000..d2c3c0c --- /dev/null +++ b/ggsn/sgsn.h @@ -0,0 +1,46 @@ +#pragma once + +#include <stdint.h> +#include <stdbool.h> +#include <netinet/in.h> +#include <arpa/inet.h> + +#include <osmocom/core/linuxlist.h> +#include <osmocom/core/timer.h> + +#include "../gtp/pdp.h" + +struct ggsn_ctx; +struct pdp_priv_t; + +struct sgsn_peer { + struct llist_head entry; /* to be included into ggsn_ctx */ + struct ggsn_ctx *ggsn; /* backpointer to ggsn_ctx */ + struct in_addr addr; /* Addr of the sgsn peer */ + unsigned int gtp_version; /* GTP version */ + int remote_restart_ctr; /* Last received Restart Ctr from sgsn peer, -1 == unknown */ + /* list of pdp contexts associated with this sgsn */ + struct llist_head pdp_list; + /* Sends echo request towards SGSN on expiration. Echo Resp is received + through cb_recovery2(), and echo Req timeout through + cb_conf(GTP_ECHO_REQ, EOF, NULL, cbp); */ + struct osmo_timer_list echo_timer; + /* Number of GTP messages in libgtp transmit queue */ + unsigned int tx_msgs_queued; +}; + +struct sgsn_peer *sgsn_peer_allocate(struct ggsn_ctx *ggsn, struct in_addr *ia, unsigned int gtp_version); +void sgsn_peer_add_pdp_priv(struct sgsn_peer *sgsn, struct pdp_priv_t *pdp_priv); +void sgsn_peer_remove_pdp_priv(struct pdp_priv_t *pdp_priv); + +void sgsn_echo_timer_start(struct sgsn_peer *sgsn); +void sgsn_echo_timer_stop(struct sgsn_peer *sgsn); + +void sgsn_peer_echo_resp(struct sgsn_peer *sgsn, bool timeout); +unsigned int sgsn_peer_drop_all_pdp(struct sgsn_peer *sgsn); +int sgsn_peer_handle_recovery(struct sgsn_peer *sgsn, struct pdp_t *pdp, uint8_t recovery); + +#define LOGSGSN(level, sgsn, fmt, args...) { \ + char _buf[INET_ADDRSTRLEN]; \ + LOGP(DGGSN, level, "SGSN(%s): " fmt, inet_ntop(AF_INET, &sgsn->addr, _buf, sizeof(_buf)), ## args); \ + } while (0) |