2017-02-13 04:19:53 +00:00
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#define TRACE_MODULE _mme_sm
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2017-02-13 00:58:55 +00:00
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#include "core_debug.h"
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#include "sm.h"
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#include "context.h"
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#include "event.h"
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2017-02-13 05:17:26 +00:00
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#include "s1ap_path.h"
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2017-02-13 00:58:55 +00:00
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2017-02-13 01:20:32 +00:00
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void mme_state_initial(mme_sm_t *s, event_t *e)
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2017-02-13 00:58:55 +00:00
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{
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sm_trace(1, e);
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d_assert(s, return, "Null param");
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2017-02-13 01:20:32 +00:00
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FSM_TRAN(s, &mme_state_operational);
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2017-02-13 00:58:55 +00:00
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}
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2017-02-13 01:20:32 +00:00
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void mme_state_final(mme_sm_t *s, event_t *e)
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2017-02-13 00:58:55 +00:00
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{
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sm_trace(1, e);
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d_assert(s, return, "Null param");
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}
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2017-02-13 01:20:32 +00:00
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void mme_state_operational(mme_sm_t *s, event_t *e)
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2017-02-13 00:58:55 +00:00
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{
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2017-02-13 04:19:53 +00:00
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status_t rv;
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2017-02-13 00:58:55 +00:00
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char buf[INET_ADDRSTRLEN];
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sm_trace(1, e);
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d_assert(s, return, "Null param");
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switch (event_get(e))
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{
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case FSM_ENTRY_SIG:
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{
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2017-03-06 08:55:50 +00:00
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rv = s1ap_open();
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2017-02-13 04:19:53 +00:00
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if (rv != CORE_OK)
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{
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2017-02-20 11:20:31 +00:00
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d_error("Can't establish S1AP path");
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break;
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}
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2017-02-13 00:58:55 +00:00
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break;
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}
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case FSM_EXIT_SIG:
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{
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2017-02-13 05:17:26 +00:00
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rv = s1ap_close();
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2017-02-13 04:19:53 +00:00
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if (rv != CORE_OK)
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{
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2017-02-20 11:20:31 +00:00
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d_error("Can't close S1AP path");
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2017-02-13 04:19:53 +00:00
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break;
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}
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break;
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}
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2017-03-04 15:57:52 +00:00
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case EVT_LO_ENB_S1AP_ACCEPT:
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2017-02-13 04:38:57 +00:00
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{
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int rc;
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net_sock_t *sock = (net_sock_t *)event_get_param1(e);
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d_assert(sock, break, "Null param");
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d_trace(1, "eNB-S1 accepted[%s] in master_sm module\n",
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INET_NTOP(&sock->remote.sin_addr.s_addr, buf));
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2017-03-04 16:05:03 +00:00
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enb_ctx_t *enb = mme_ctx_enb_find_by_sock(sock);
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2017-02-13 04:38:57 +00:00
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if (!enb)
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{
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2017-03-06 08:55:50 +00:00
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rc = net_register_sock(sock, _s1ap_recv_cb, NULL);
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2017-02-13 05:17:26 +00:00
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d_assert(rc == 0, break, "register _s1ap_recv_cb failed");
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2017-02-13 04:38:57 +00:00
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2017-03-04 16:05:03 +00:00
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enb_ctx_t *enb = mme_ctx_enb_add();
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2017-02-13 04:38:57 +00:00
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d_assert(enb, break, "Null param");
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2017-03-05 04:03:11 +00:00
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enb->s1ap_sock = sock;
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2017-02-13 04:38:57 +00:00
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2017-03-05 04:03:11 +00:00
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fsm_create((fsm_t*)&enb->s1ap_sm,
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2017-03-05 02:30:40 +00:00
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enb_s1ap_state_initial, enb_s1ap_state_final);
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2017-03-05 04:03:11 +00:00
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enb->s1ap_sm.ctx = enb;
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fsm_init((fsm_t*)&enb->s1ap_sm, 0);
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2017-02-13 04:38:57 +00:00
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}
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else
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{
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d_warn("eNB context duplicated with IP-address [%s]!!!",
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2017-02-13 05:01:38 +00:00
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INET_NTOP(&sock->remote.sin_addr.s_addr, buf));
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2017-02-13 04:38:57 +00:00
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net_close(sock);
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d_warn("S1 Socket Closed");
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}
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break;
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}
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2017-03-05 08:07:43 +00:00
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case EVT_MSG_ENB_S1AP:
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2017-02-13 04:38:57 +00:00
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{
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2017-02-13 05:01:38 +00:00
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net_sock_t *sock = (net_sock_t *)event_get_param1(e);
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d_assert(sock, break, "Null param");
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2017-03-04 16:05:03 +00:00
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enb_ctx_t *enb = mme_ctx_enb_find_by_sock(sock);
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2017-02-13 04:38:57 +00:00
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if (enb)
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{
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2017-03-05 04:03:11 +00:00
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d_assert(FSM_STATE(&enb->s1ap_sm), break, "Null param");
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fsm_dispatch((fsm_t*)&enb->s1ap_sm, (fsm_event_t*)e);
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2017-02-13 04:38:57 +00:00
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}
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else
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{
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d_error("eNB context is not created[%s]",
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2017-02-13 05:01:38 +00:00
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INET_NTOP(&sock->remote.sin_addr.s_addr, buf));
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2017-02-13 04:38:57 +00:00
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}
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2017-03-05 08:05:30 +00:00
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2017-03-05 08:36:16 +00:00
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break;
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}
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case EVT_MSG_UE_EMM:
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{
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ue_ctx_t *ue = (ue_ctx_t *)event_get_param1(e);
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d_assert(ue, break, "Null param");
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d_assert(FSM_STATE(&ue->emm_sm), break, "Null param");
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fsm_dispatch((fsm_t*)&ue->emm_sm, (fsm_event_t*)e);
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2017-02-13 04:38:57 +00:00
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break;
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}
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2017-03-04 15:57:52 +00:00
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case EVT_LO_ENB_S1AP_CONNREFUSED:
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2017-02-13 04:19:53 +00:00
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{
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net_sock_t *sock = (net_sock_t *)event_get_param1(e);
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d_assert(sock, break, "Null param");
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2017-02-13 05:01:38 +00:00
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d_info("Socket[%s] connection refused",
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INET_NTOP(&sock->remote.sin_addr.s_addr, buf));
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2017-02-13 04:19:53 +00:00
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2017-03-04 16:05:03 +00:00
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enb_ctx_t *enb = mme_ctx_enb_find_by_sock(sock);
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2017-02-13 04:19:53 +00:00
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if (enb)
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{
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/* Remove eNB S1 state machine if exist */
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2017-03-05 04:03:11 +00:00
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d_assert(FSM_STATE(&enb->s1ap_sm), break, "Null param");
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fsm_final((fsm_t*)&enb->s1ap_sm, 0);
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fsm_clear((fsm_t*)&enb->s1ap_sm);
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2017-02-13 04:19:53 +00:00
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2017-02-14 13:58:02 +00:00
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net_unregister_sock(sock);
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net_close(sock);
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2017-03-04 16:05:03 +00:00
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mme_ctx_enb_remove(enb);
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2017-03-05 04:03:11 +00:00
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d_info("eNB-S1[%x] connection refused!!!", enb->enb_id);
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2017-02-13 04:19:53 +00:00
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}
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else
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{
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2017-03-05 07:49:57 +00:00
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d_warn("Can't find eNB-S1 for [%s]!!!",
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2017-02-13 05:01:38 +00:00
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INET_NTOP(&sock->remote.sin_addr.s_addr, buf));
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2017-02-13 04:19:53 +00:00
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}
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2017-02-13 05:01:38 +00:00
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2017-02-13 00:58:55 +00:00
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break;
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}
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default:
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{
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d_error("No handler for event %s", event_get_name(e));
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break;
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}
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}
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/* If event was packet type, its buffer allocated by data-plane should
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* be freed here */
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}
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2017-02-13 01:20:32 +00:00
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void mme_state_exception(mme_sm_t *s, event_t *e)
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2017-02-13 00:58:55 +00:00
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{
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sm_trace(1, e);
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d_assert(s, return, "Null param");
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switch (event_get(e))
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{
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case FSM_ENTRY_SIG:
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{
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break;
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}
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case FSM_EXIT_SIG:
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{
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break;
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}
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default:
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{
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d_error("No handler for event %s", event_get_name(e));
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break;
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}
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}
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}
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