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f2bf8dc8c8
There is a use-after-free problem if a 'notify' FSM as passed to osmo_mgcpc_ep_ci_request() deallocates before the notify event has been dispatched. To avoid that, add API to allow cancelling a notify. Change-Id: I41687d7f3a808587ab7f7520f46dcc3c29cff92d
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/* FSM to manage multiple connections of an MGW endpoint */
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#pragma once
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#include <osmocom/mgcp_client/mgcp_client_fsm.h>
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#define LOG_MGCPC_EP(ep, level, fmt, args...) do { \
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LOGPFSML(ep->fi, level, "%s " fmt, \
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osmo_mgcpc_ep_name(ep), ## args); \
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} while(0)
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struct osmo_mgcpc_ep;
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struct osmo_mgcpc_ep_ci;
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struct osmo_tdef;
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struct osmo_mgcpc_ep *osmo_mgcpc_ep_alloc(struct osmo_fsm_inst *parent, uint32_t parent_term_event,
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struct mgcp_client *mgcp_client,
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const struct osmo_tdef *T_defs,
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const char *fsm_id,
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const char *endpoint_str_fmt, ...);
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struct osmo_mgcpc_ep_ci *osmo_mgcpc_ep_ci_add(struct osmo_mgcpc_ep *ep, const char *label_fmt, ...);
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const struct mgcp_conn_peer *osmo_mgcpc_ep_ci_get_rtp_info(const struct osmo_mgcpc_ep_ci *ci);
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bool osmo_mgcpc_ep_ci_get_crcx_info_to_sockaddr(const struct osmo_mgcpc_ep_ci *ci, struct sockaddr_storage *dest);
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bool osmo_mgcpc_ep_ci_get_crcx_info_to_osmux_cid(const struct osmo_mgcpc_ep_ci *ci, uint8_t* cid);
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void osmo_mgcpc_ep_ci_request(struct osmo_mgcpc_ep_ci *ci,
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enum mgcp_verb verb, const struct mgcp_conn_peer *verb_info,
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struct osmo_fsm_inst *notify,
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uint32_t event_success, uint32_t event_failure,
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void *notify_data);
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void osmo_mgcpc_ep_cancel_notify(struct osmo_mgcpc_ep *ep, struct osmo_fsm_inst *notify);
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/*! Dispatch a DLCX for the given connection.
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* \param ci Connection identifier as obtained from osmo_mgcpc_ep_ci_add().
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*/
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static inline void osmo_mgcpc_ep_ci_dlcx(struct osmo_mgcpc_ep_ci *ci)
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{
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osmo_mgcpc_ep_ci_request(ci, MGCP_VERB_DLCX, NULL, NULL, 0, 0, NULL);
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}
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void osmo_mgcpc_ep_clear(struct osmo_mgcpc_ep *ep);
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const char *osmo_mgcpc_ep_name(const struct osmo_mgcpc_ep *ep);
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const char *osmo_mgcpc_ep_ci_name(const struct osmo_mgcpc_ep_ci *ci);
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const char *osmo_mgcpc_ep_ci_id(const struct osmo_mgcpc_ep_ci *ci);
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extern const struct value_string osmo_mgcp_verb_names[];
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static inline const char *osmo_mgcp_verb_name(enum mgcp_verb val)
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{ return get_value_string(osmo_mgcp_verb_names, val); }
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