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libgtp: Introduce cb_recovery3 

Since osmo-ggsn can manage several GSN structures simultaneously, it
needs the gsn_t pointer to know the ggsn it should forward the call to.

Related: OS#4165
Change-Id: I33b4fe594d5833993af01cce34737e61e597b320
This commit is contained in:
Pau Espin 2019-08-22 15:00:00 +02:00
parent c602d7cf00
commit 5d8b226597
2 changed files with 23 additions and 0 deletions
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17
gtp/gtp.c
View File

@ -219,6 +219,8 @@ static void emit_cb_recovery(struct gsn_t *gsn, struct sockaddr_in * peer,
gsn->cb_recovery(peer, recovery);
if (gsn->cb_recovery2)
gsn->cb_recovery2(peer, pdp, recovery);
if (gsn->cb_recovery3)
gsn->cb_recovery3(gsn, peer, pdp, recovery);
}
int gtp_set_cb_recovery(struct gsn_t *gsn,
@ -242,6 +244,21 @@ int gtp_set_cb_recovery2(struct gsn_t *gsn,
return 0;
}
/* cb_recovery()
* pdp may be NULL if Recovery IE was received from a message independent
* of any PDP ctx (such as Echo Response), or because pdp ctx is unknown to the
* local setup. In case pdp is known, caller may want to keep that pdp alive to
* handle subsequent msg cb as this specific pdp ctx is still valid according to
* specs.
*/
int gtp_set_cb_recovery3(struct gsn_t *gsn,
int (*cb_recovery3) (struct gsn_t *gsn, struct sockaddr_in *peer,
struct pdp_t *pdp, uint8_t recovery))
{
gsn->cb_recovery3 = cb_recovery3;
return 0;
}
int gtp_set_cb_data_ind(struct gsn_t *gsn,
int (*cb_data_ind) (struct pdp_t * pdp,
void *pack, unsigned len))

6
gtp/gtp.h
View File

@ -277,6 +277,7 @@ struct gsn_t {
int (*cb_data_ind) (struct pdp_t * pdp, void *pack, unsigned len);
int (*cb_recovery) (struct sockaddr_in * peer, uint8_t recovery);
int (*cb_recovery2) (struct sockaddr_in * peer, struct pdp_t * pdp, uint8_t recovery);
int (*cb_recovery3) (struct gsn_t *gsn, struct sockaddr_in *peer, struct pdp_t *pdp, uint8_t recovery);
/* Counters */
@ -372,6 +373,11 @@ int gtp_set_cb_recovery(struct gsn_t *gsn,
OSMO_DEPRECATED("Use gtp_set_cb_recovery2() instead, to obtain pdp ctx originating the recovery");
int gtp_set_cb_recovery2(struct gsn_t *gsn,
int (*cb) (struct sockaddr_in * peer,
struct pdp_t * pdp,
uint8_t recovery))
OSMO_DEPRECATED("Use gtp_set_cb_recovery3() instead, to obtain gsn handling the recovery");;
int gtp_set_cb_recovery3(struct gsn_t *gsn,
int (*cb) (struct gsn_t * gsn, struct sockaddr_in * peer,
struct pdp_t * pdp,
uint8_t recovery));