Lines Matching refs:session
246 void j1939_session_get(struct j1939_session *session) in j1939_session_get() argument
248 kref_get(&session->kref); in j1939_session_get()
252 static void __j1939_session_drop(struct j1939_session *session) in __j1939_session_drop() argument
254 if (!session->transmission) in __j1939_session_drop()
257 j1939_sock_pending_del(session->sk); in __j1939_session_drop()
258 sock_put(session->sk); in __j1939_session_drop()
261 static void j1939_session_destroy(struct j1939_session *session) in j1939_session_destroy() argument
265 if (session->transmission) { in j1939_session_destroy()
266 if (session->err) in j1939_session_destroy()
267 j1939_sk_errqueue(session, J1939_ERRQUEUE_TX_ABORT); in j1939_session_destroy()
269 j1939_sk_errqueue(session, J1939_ERRQUEUE_TX_ACK); in j1939_session_destroy()
270 } else if (session->err) { in j1939_session_destroy()
271 j1939_sk_errqueue(session, J1939_ERRQUEUE_RX_ABORT); in j1939_session_destroy()
274 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_destroy()
276 WARN_ON_ONCE(!list_empty(&session->sk_session_queue_entry)); in j1939_session_destroy()
277 WARN_ON_ONCE(!list_empty(&session->active_session_list_entry)); in j1939_session_destroy()
279 while ((skb = skb_dequeue(&session->skb_queue)) != NULL) { in j1939_session_destroy()
284 __j1939_session_drop(session); in j1939_session_destroy()
285 j1939_priv_put(session->priv); in j1939_session_destroy()
286 kfree(session); in j1939_session_destroy()
291 struct j1939_session *session = container_of(kref, struct j1939_session, in __j1939_session_release() local
294 j1939_session_destroy(session); in __j1939_session_release()
297 void j1939_session_put(struct j1939_session *session) in j1939_session_put() argument
299 kref_put(&session->kref, __j1939_session_release); in j1939_session_put()
302 static void j1939_session_txtimer_cancel(struct j1939_session *session) in j1939_session_txtimer_cancel() argument
304 if (hrtimer_cancel(&session->txtimer)) in j1939_session_txtimer_cancel()
305 j1939_session_put(session); in j1939_session_txtimer_cancel()
308 static void j1939_session_rxtimer_cancel(struct j1939_session *session) in j1939_session_rxtimer_cancel() argument
310 if (hrtimer_cancel(&session->rxtimer)) in j1939_session_rxtimer_cancel()
311 j1939_session_put(session); in j1939_session_rxtimer_cancel()
314 void j1939_session_timers_cancel(struct j1939_session *session) in j1939_session_timers_cancel() argument
316 j1939_session_txtimer_cancel(session); in j1939_session_timers_cancel()
317 j1939_session_rxtimer_cancel(session); in j1939_session_timers_cancel()
325 static void j1939_session_skb_drop_old(struct j1939_session *session) in j1939_session_skb_drop_old() argument
332 if (skb_queue_len(&session->skb_queue) < 2) in j1939_session_skb_drop_old()
335 offset_start = session->pkt.tx_acked * 7; in j1939_session_skb_drop_old()
337 spin_lock_irqsave(&session->skb_queue.lock, flags); in j1939_session_skb_drop_old()
338 do_skb = skb_peek(&session->skb_queue); in j1939_session_skb_drop_old()
342 __skb_unlink(do_skb, &session->skb_queue); in j1939_session_skb_drop_old()
345 spin_unlock_irqrestore(&session->skb_queue.lock, flags); in j1939_session_skb_drop_old()
349 spin_unlock_irqrestore(&session->skb_queue.lock, flags); in j1939_session_skb_drop_old()
353 void j1939_session_skb_queue(struct j1939_session *session, in j1939_session_skb_queue() argument
357 struct j1939_priv *priv = session->priv; in j1939_session_skb_queue()
368 skb_queue_tail(&session->skb_queue, skb); in j1939_session_skb_queue()
372 sk_buff *j1939_session_skb_get_by_offset(struct j1939_session *session, in j1939_session_skb_get_by_offset() argument
375 struct j1939_priv *priv = session->priv; in j1939_session_skb_get_by_offset()
381 spin_lock_irqsave(&session->skb_queue.lock, flags); in j1939_session_skb_get_by_offset()
382 skb_queue_walk(&session->skb_queue, do_skb) { in j1939_session_skb_get_by_offset()
394 spin_unlock_irqrestore(&session->skb_queue.lock, flags); in j1939_session_skb_get_by_offset()
398 __func__, session, offset_start, in j1939_session_skb_get_by_offset()
399 skb_queue_len(&session->skb_queue)); in j1939_session_skb_get_by_offset()
404 static struct sk_buff *j1939_session_skb_get(struct j1939_session *session) in j1939_session_skb_get() argument
408 offset_start = session->pkt.dpo * 7; in j1939_session_skb_get()
409 return j1939_session_skb_get_by_offset(session, offset_start); in j1939_session_skb_get()
518 struct j1939_session *session; in j1939_session_get_by_addr_locked() local
522 list_for_each_entry(session, root, active_session_list_entry) { in j1939_session_get_by_addr_locked()
523 j1939_session_get(session); in j1939_session_get_by_addr_locked()
524 if (j1939_session_match(&session->skcb.addr, addr, reverse) && in j1939_session_get_by_addr_locked()
525 session->transmission == transmitter) in j1939_session_get_by_addr_locked()
526 return session; in j1939_session_get_by_addr_locked()
527 j1939_session_put(session); in j1939_session_get_by_addr_locked()
538 struct j1939_session *session; in j1939_session_get_simple() local
542 list_for_each_entry(session, &priv->active_session_list, in j1939_session_get_simple()
544 j1939_session_get(session); in j1939_session_get_simple()
545 if (session->skcb.addr.type == J1939_SIMPLE && in j1939_session_get_simple()
546 session->tskey == skcb->tskey && session->sk == skb->sk) in j1939_session_get_simple()
547 return session; in j1939_session_get_simple()
548 j1939_session_put(session); in j1939_session_get_simple()
559 struct j1939_session *session; in j1939_session_get_by_addr() local
562 session = j1939_session_get_by_addr_locked(priv, in j1939_session_get_by_addr()
567 return session; in j1939_session_get_by_addr()
631 static int j1939_tp_tx_dat(struct j1939_session *session, in j1939_tp_tx_dat() argument
634 struct j1939_priv *priv = session->priv; in j1939_tp_tx_dat()
637 skb = j1939_tp_tx_dat_new(priv, &session->skcb, in j1939_tp_tx_dat()
672 static inline int j1939_tp_tx_ctl(struct j1939_session *session, in j1939_tp_tx_ctl() argument
675 struct j1939_priv *priv = session->priv; in j1939_tp_tx_ctl()
677 return j1939_xtp_do_tx_ctl(priv, &session->skcb, in j1939_tp_tx_ctl()
679 session->skcb.addr.pgn, dat); in j1939_tp_tx_ctl()
699 void j1939_tp_schedule_txtimer(struct j1939_session *session, int msec) in j1939_tp_schedule_txtimer() argument
701 j1939_session_get(session); in j1939_tp_schedule_txtimer()
702 hrtimer_start(&session->txtimer, ms_to_ktime(msec), in j1939_tp_schedule_txtimer()
706 static inline void j1939_tp_set_rxtimeout(struct j1939_session *session, in j1939_tp_set_rxtimeout() argument
709 j1939_session_rxtimer_cancel(session); in j1939_tp_set_rxtimeout()
710 j1939_session_get(session); in j1939_tp_set_rxtimeout()
711 hrtimer_start(&session->rxtimer, ms_to_ktime(msec), in j1939_tp_set_rxtimeout()
715 static int j1939_session_tx_rts(struct j1939_session *session) in j1939_session_tx_rts() argument
722 dat[1] = (session->total_message_size >> 0); in j1939_session_tx_rts()
723 dat[2] = (session->total_message_size >> 8); in j1939_session_tx_rts()
724 dat[3] = session->pkt.total; in j1939_session_tx_rts()
726 if (session->skcb.addr.type == J1939_ETP) { in j1939_session_tx_rts()
728 dat[1] = (session->total_message_size >> 0); in j1939_session_tx_rts()
729 dat[2] = (session->total_message_size >> 8); in j1939_session_tx_rts()
730 dat[3] = (session->total_message_size >> 16); in j1939_session_tx_rts()
731 dat[4] = (session->total_message_size >> 24); in j1939_session_tx_rts()
732 } else if (j1939_cb_is_broadcast(&session->skcb)) { in j1939_session_tx_rts()
735 session->pkt.tx = 0; in j1939_session_tx_rts()
741 if (dat[0] == session->last_txcmd) in j1939_session_tx_rts()
745 ret = j1939_tp_tx_ctl(session, false, dat); in j1939_session_tx_rts()
749 session->last_txcmd = dat[0]; in j1939_session_tx_rts()
751 j1939_tp_schedule_txtimer(session, 50); in j1939_session_tx_rts()
752 j1939_tp_set_rxtimeout(session, 250); in j1939_session_tx_rts()
754 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_rts()
757 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_tx_rts()
762 static int j1939_session_tx_dpo(struct j1939_session *session) in j1939_session_tx_dpo() argument
771 session->pkt.dpo = session->pkt.tx_acked; in j1939_session_tx_dpo()
772 pkt = session->pkt.dpo; in j1939_session_tx_dpo()
773 dat[1] = session->pkt.last - session->pkt.tx_acked; in j1939_session_tx_dpo()
778 ret = j1939_tp_tx_ctl(session, false, dat); in j1939_session_tx_dpo()
782 session->last_txcmd = dat[0]; in j1939_session_tx_dpo()
783 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_dpo()
784 session->pkt.tx = session->pkt.tx_acked; in j1939_session_tx_dpo()
786 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_tx_dpo()
791 static int j1939_session_tx_dat(struct j1939_session *session) in j1939_session_tx_dat() argument
793 struct j1939_priv *priv = session->priv; in j1939_session_tx_dat()
802 se_skb = j1939_session_skb_get_by_offset(session, session->pkt.tx * 7); in j1939_session_tx_dat()
810 if (session->skcb.addr.type != J1939_ETP && in j1939_session_tx_dat()
811 j1939_cb_is_broadcast(&session->skcb)) in j1939_session_tx_dat()
812 pkt_end = session->pkt.total; in j1939_session_tx_dat()
814 pkt_end = session->pkt.last; in j1939_session_tx_dat()
816 while (session->pkt.tx < pkt_end) { in j1939_session_tx_dat()
817 dat[0] = session->pkt.tx - session->pkt.dpo + 1; in j1939_session_tx_dat()
818 offset = (session->pkt.tx * 7) - se_skcb->offset; in j1939_session_tx_dat()
826 __func__, session, se_skcb->offset, in j1939_session_tx_dat()
827 se_skb->len , session->pkt.tx); in j1939_session_tx_dat()
838 ret = j1939_tp_tx_dat(session, dat, len + 1); in j1939_session_tx_dat()
844 __func__, session, ret); in j1939_session_tx_dat()
848 session->last_txcmd = 0xff; in j1939_session_tx_dat()
850 session->pkt.tx++; in j1939_session_tx_dat()
851 pdelay = j1939_cb_is_broadcast(&session->skcb) ? 50 : in j1939_session_tx_dat()
854 if (session->pkt.tx < session->pkt.total && pdelay) { in j1939_session_tx_dat()
855 j1939_tp_schedule_txtimer(session, pdelay); in j1939_session_tx_dat()
861 j1939_tp_set_rxtimeout(session, 250); in j1939_session_tx_dat()
872 static int j1939_xtp_txnext_transmiter(struct j1939_session *session) in j1939_xtp_txnext_transmiter() argument
874 struct j1939_priv *priv = session->priv; in j1939_xtp_txnext_transmiter()
877 if (!j1939_tp_im_transmitter(&session->skcb)) { in j1939_xtp_txnext_transmiter()
879 __func__, session); in j1939_xtp_txnext_transmiter()
883 switch (session->last_cmd) { in j1939_xtp_txnext_transmiter()
885 ret = j1939_session_tx_rts(session); in j1939_xtp_txnext_transmiter()
889 if (session->last_txcmd != J1939_ETP_CMD_DPO) { in j1939_xtp_txnext_transmiter()
890 ret = j1939_session_tx_dpo(session); in j1939_xtp_txnext_transmiter()
900 ret = j1939_session_tx_dat(session); in j1939_xtp_txnext_transmiter()
905 __func__, session, session->last_cmd); in j1939_xtp_txnext_transmiter()
911 static int j1939_session_tx_cts(struct j1939_session *session) in j1939_session_tx_cts() argument
913 struct j1939_priv *priv = session->priv; in j1939_session_tx_cts()
918 if (!j1939_sk_recv_match(priv, &session->skcb)) in j1939_session_tx_cts()
921 len = session->pkt.total - session->pkt.rx; in j1939_session_tx_cts()
922 len = min3(len, session->pkt.block, j1939_tp_block ?: 255); in j1939_session_tx_cts()
925 if (session->skcb.addr.type == J1939_ETP) { in j1939_session_tx_cts()
926 pkt = session->pkt.rx + 1; in j1939_session_tx_cts()
935 dat[2] = session->pkt.rx + 1; in j1939_session_tx_cts()
938 if (dat[0] == session->last_txcmd) in j1939_session_tx_cts()
942 ret = j1939_tp_tx_ctl(session, true, dat); in j1939_session_tx_cts()
948 session->last_txcmd = dat[0]; in j1939_session_tx_cts()
949 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_cts()
951 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_tx_cts()
956 static int j1939_session_tx_eoma(struct j1939_session *session) in j1939_session_tx_eoma() argument
958 struct j1939_priv *priv = session->priv; in j1939_session_tx_eoma()
962 if (!j1939_sk_recv_match(priv, &session->skcb)) in j1939_session_tx_eoma()
967 if (session->skcb.addr.type == J1939_ETP) { in j1939_session_tx_eoma()
969 dat[1] = session->total_message_size >> 0; in j1939_session_tx_eoma()
970 dat[2] = session->total_message_size >> 8; in j1939_session_tx_eoma()
971 dat[3] = session->total_message_size >> 16; in j1939_session_tx_eoma()
972 dat[4] = session->total_message_size >> 24; in j1939_session_tx_eoma()
975 dat[1] = session->total_message_size; in j1939_session_tx_eoma()
976 dat[2] = session->total_message_size >> 8; in j1939_session_tx_eoma()
977 dat[3] = session->pkt.total; in j1939_session_tx_eoma()
980 if (dat[0] == session->last_txcmd) in j1939_session_tx_eoma()
984 ret = j1939_tp_tx_ctl(session, true, dat); in j1939_session_tx_eoma()
988 session->last_txcmd = dat[0]; in j1939_session_tx_eoma()
991 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_eoma()
993 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_tx_eoma()
998 static int j1939_xtp_txnext_receiver(struct j1939_session *session) in j1939_xtp_txnext_receiver() argument
1000 struct j1939_priv *priv = session->priv; in j1939_xtp_txnext_receiver()
1003 if (!j1939_tp_im_receiver(&session->skcb)) { in j1939_xtp_txnext_receiver()
1005 __func__, session); in j1939_xtp_txnext_receiver()
1009 switch (session->last_cmd) { in j1939_xtp_txnext_receiver()
1012 ret = j1939_session_tx_cts(session); in j1939_xtp_txnext_receiver()
1019 if ((session->skcb.addr.type == J1939_TP && in j1939_xtp_txnext_receiver()
1020 j1939_cb_is_broadcast(&session->skcb))) in j1939_xtp_txnext_receiver()
1023 if (session->pkt.rx >= session->pkt.total) { in j1939_xtp_txnext_receiver()
1024 ret = j1939_session_tx_eoma(session); in j1939_xtp_txnext_receiver()
1025 } else if (session->pkt.rx >= session->pkt.last) { in j1939_xtp_txnext_receiver()
1026 session->last_txcmd = 0; in j1939_xtp_txnext_receiver()
1027 ret = j1939_session_tx_cts(session); in j1939_xtp_txnext_receiver()
1032 __func__, session, session->last_cmd); in j1939_xtp_txnext_receiver()
1038 static int j1939_simple_txnext(struct j1939_session *session) in j1939_simple_txnext() argument
1040 struct j1939_priv *priv = session->priv; in j1939_simple_txnext()
1041 struct sk_buff *se_skb = j1939_session_skb_get(session); in j1939_simple_txnext()
1056 j1939_tp_set_rxtimeout(session, J1939_SIMPLE_ECHO_TIMEOUT_MS); in j1939_simple_txnext()
1062 j1939_sk_errqueue(session, J1939_ERRQUEUE_TX_SCHED); in j1939_simple_txnext()
1063 j1939_sk_queue_activate_next(session); in j1939_simple_txnext()
1074 static bool j1939_session_deactivate_locked(struct j1939_session *session) in j1939_session_deactivate_locked() argument
1078 lockdep_assert_held(&session->priv->active_session_list_lock); in j1939_session_deactivate_locked()
1080 if (session->state >= J1939_SESSION_ACTIVE && in j1939_session_deactivate_locked()
1081 session->state < J1939_SESSION_ACTIVE_MAX) { in j1939_session_deactivate_locked()
1084 list_del_init(&session->active_session_list_entry); in j1939_session_deactivate_locked()
1085 session->state = J1939_SESSION_DONE; in j1939_session_deactivate_locked()
1086 j1939_session_put(session); in j1939_session_deactivate_locked()
1092 static bool j1939_session_deactivate(struct j1939_session *session) in j1939_session_deactivate() argument
1094 struct j1939_priv *priv = session->priv; in j1939_session_deactivate()
1098 active = j1939_session_deactivate_locked(session); in j1939_session_deactivate()
1105 j1939_session_deactivate_activate_next(struct j1939_session *session) in j1939_session_deactivate_activate_next() argument
1107 if (j1939_session_deactivate(session)) in j1939_session_deactivate_activate_next()
1108 j1939_sk_queue_activate_next(session); in j1939_session_deactivate_activate_next()
1111 static void __j1939_session_cancel(struct j1939_session *session, in __j1939_session_cancel() argument
1114 struct j1939_priv *priv = session->priv; in __j1939_session_cancel()
1117 lockdep_assert_held(&session->priv->active_session_list_lock); in __j1939_session_cancel()
1119 session->err = j1939_xtp_abort_to_errno(priv, err); in __j1939_session_cancel()
1120 session->state = J1939_SESSION_WAITING_ABORT; in __j1939_session_cancel()
1122 if (!j1939_cb_is_broadcast(&session->skcb)) { in __j1939_session_cancel()
1123 j1939_xtp_tx_abort(priv, &session->skcb, in __j1939_session_cancel()
1124 !session->transmission, in __j1939_session_cancel()
1125 err, session->skcb.addr.pgn); in __j1939_session_cancel()
1128 if (session->sk) in __j1939_session_cancel()
1129 j1939_sk_send_loop_abort(session->sk, session->err); in __j1939_session_cancel()
1132 static void j1939_session_cancel(struct j1939_session *session, in j1939_session_cancel() argument
1135 j1939_session_list_lock(session->priv); in j1939_session_cancel()
1137 if (session->state >= J1939_SESSION_ACTIVE && in j1939_session_cancel()
1138 session->state < J1939_SESSION_WAITING_ABORT) { in j1939_session_cancel()
1139 j1939_tp_set_rxtimeout(session, J1939_XTP_ABORT_TIMEOUT_MS); in j1939_session_cancel()
1140 __j1939_session_cancel(session, err); in j1939_session_cancel()
1143 j1939_session_list_unlock(session->priv); in j1939_session_cancel()
1145 if (!session->sk) in j1939_session_cancel()
1146 j1939_sk_errqueue(session, J1939_ERRQUEUE_RX_ABORT); in j1939_session_cancel()
1151 struct j1939_session *session = in j1939_tp_txtimer() local
1153 struct j1939_priv *priv = session->priv; in j1939_tp_txtimer()
1156 if (session->skcb.addr.type == J1939_SIMPLE) { in j1939_tp_txtimer()
1157 ret = j1939_simple_txnext(session); in j1939_tp_txtimer()
1159 if (session->transmission) in j1939_tp_txtimer()
1160 ret = j1939_xtp_txnext_transmiter(session); in j1939_tp_txtimer()
1162 ret = j1939_xtp_txnext_receiver(session); in j1939_tp_txtimer()
1168 if (session->tx_retry < J1939_XTP_TX_RETRY_LIMIT) { in j1939_tp_txtimer()
1169 session->tx_retry++; in j1939_tp_txtimer()
1170 j1939_tp_schedule_txtimer(session, in j1939_tp_txtimer()
1174 __func__, session); in j1939_tp_txtimer()
1175 session->err = -ENETUNREACH; in j1939_tp_txtimer()
1176 j1939_session_rxtimer_cancel(session); in j1939_tp_txtimer()
1177 j1939_session_deactivate_activate_next(session); in j1939_tp_txtimer()
1189 j1939_session_cancel(session, J1939_XTP_ABORT_ECTS_TOO_BIG); in j1939_tp_txtimer()
1192 session->tx_retry = 0; in j1939_tp_txtimer()
1196 __func__, session, ret); in j1939_tp_txtimer()
1197 if (session->skcb.addr.type != J1939_SIMPLE) { in j1939_tp_txtimer()
1198 j1939_session_cancel(session, J1939_XTP_ABORT_OTHER); in j1939_tp_txtimer()
1200 session->err = ret; in j1939_tp_txtimer()
1201 j1939_session_rxtimer_cancel(session); in j1939_tp_txtimer()
1202 j1939_session_deactivate_activate_next(session); in j1939_tp_txtimer()
1206 j1939_session_put(session); in j1939_tp_txtimer()
1211 static void j1939_session_completed(struct j1939_session *session) in j1939_session_completed() argument
1215 if (!session->transmission) { in j1939_session_completed()
1216 se_skb = j1939_session_skb_get(session); in j1939_session_completed()
1218 j1939_sk_recv(session->priv, se_skb); in j1939_session_completed()
1222 j1939_session_deactivate_activate_next(session); in j1939_session_completed()
1227 struct j1939_session *session = container_of(hrtimer, in j1939_tp_rxtimer() local
1230 struct j1939_priv *priv = session->priv; in j1939_tp_rxtimer()
1232 if (session->state == J1939_SESSION_WAITING_ABORT) { in j1939_tp_rxtimer()
1234 __func__, session); in j1939_tp_rxtimer()
1236 j1939_session_deactivate_activate_next(session); in j1939_tp_rxtimer()
1238 } else if (session->skcb.addr.type == J1939_SIMPLE) { in j1939_tp_rxtimer()
1240 __func__, session); in j1939_tp_rxtimer()
1245 session->err = -ETIME; in j1939_tp_rxtimer()
1246 j1939_session_deactivate(session); in j1939_tp_rxtimer()
1248 j1939_session_list_lock(session->priv); in j1939_tp_rxtimer()
1249 if (session->state >= J1939_SESSION_ACTIVE && in j1939_tp_rxtimer()
1250 session->state < J1939_SESSION_ACTIVE_MAX) { in j1939_tp_rxtimer()
1252 __func__, session); in j1939_tp_rxtimer()
1253 j1939_session_get(session); in j1939_tp_rxtimer()
1254 hrtimer_start(&session->rxtimer, in j1939_tp_rxtimer()
1257 __j1939_session_cancel(session, J1939_XTP_ABORT_TIMEOUT); in j1939_tp_rxtimer()
1259 j1939_session_list_unlock(session->priv); in j1939_tp_rxtimer()
1261 if (!session->sk) in j1939_tp_rxtimer()
1262 j1939_sk_errqueue(session, J1939_ERRQUEUE_RX_ABORT); in j1939_tp_rxtimer()
1265 j1939_session_put(session); in j1939_tp_rxtimer()
1270 static bool j1939_xtp_rx_cmd_bad_pgn(struct j1939_session *session, in j1939_xtp_rx_cmd_bad_pgn() argument
1275 struct j1939_priv *priv = session->priv; in j1939_xtp_rx_cmd_bad_pgn()
1279 if (session->skcb.addr.pgn == pgn) in j1939_xtp_rx_cmd_bad_pgn()
1319 __func__, session, cmd, pgn, session->skcb.addr.pgn); in j1939_xtp_rx_cmd_bad_pgn()
1330 struct j1939_session *session; in j1939_xtp_rx_abort_one() local
1333 session = j1939_session_get_by_addr(priv, &skcb->addr, reverse, in j1939_xtp_rx_abort_one()
1335 if (!session) in j1939_xtp_rx_abort_one()
1338 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_abort_one()
1342 session, j1939_xtp_ctl_to_pgn(skb->data), abort, in j1939_xtp_rx_abort_one()
1345 j1939_session_timers_cancel(session); in j1939_xtp_rx_abort_one()
1346 session->err = j1939_xtp_abort_to_errno(priv, abort); in j1939_xtp_rx_abort_one()
1347 if (session->sk) in j1939_xtp_rx_abort_one()
1348 j1939_sk_send_loop_abort(session->sk, session->err); in j1939_xtp_rx_abort_one()
1350 j1939_sk_errqueue(session, J1939_ERRQUEUE_RX_ABORT); in j1939_xtp_rx_abort_one()
1351 j1939_session_deactivate_activate_next(session); in j1939_xtp_rx_abort_one()
1354 j1939_session_put(session); in j1939_xtp_rx_abort_one()
1367 j1939_xtp_rx_eoma_one(struct j1939_session *session, struct sk_buff *skb) in j1939_xtp_rx_eoma_one() argument
1373 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_eoma_one()
1383 if (session->total_message_size != len) { in j1939_xtp_rx_eoma_one()
1384 netdev_warn_once(session->priv->ndev, in j1939_xtp_rx_eoma_one()
1386 __func__, session, session->total_message_size, in j1939_xtp_rx_eoma_one()
1390 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_eoma_one()
1392 session->pkt.tx_acked = session->pkt.total; in j1939_xtp_rx_eoma_one()
1393 j1939_session_timers_cancel(session); in j1939_xtp_rx_eoma_one()
1395 j1939_session_completed(session); in j1939_xtp_rx_eoma_one()
1403 struct j1939_session *session; in j1939_xtp_rx_eoma() local
1405 session = j1939_session_get_by_addr(priv, &skcb->addr, true, in j1939_xtp_rx_eoma()
1407 if (!session) in j1939_xtp_rx_eoma()
1410 j1939_xtp_rx_eoma_one(session, skb); in j1939_xtp_rx_eoma()
1411 j1939_session_put(session); in j1939_xtp_rx_eoma()
1415 j1939_xtp_rx_cts_one(struct j1939_session *session, struct sk_buff *skb) in j1939_xtp_rx_cts_one() argument
1423 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_cts_one()
1426 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_cts_one()
1428 if (session->last_cmd == dat[0]) { in j1939_xtp_rx_cts_one()
1433 if (session->skcb.addr.type == J1939_ETP) in j1939_xtp_rx_cts_one()
1440 else if (dat[1] > session->pkt.block /* 0xff for etp */) in j1939_xtp_rx_cts_one()
1444 session->pkt.tx_acked = pkt - 1; in j1939_xtp_rx_cts_one()
1445 j1939_session_skb_drop_old(session); in j1939_xtp_rx_cts_one()
1446 session->pkt.last = session->pkt.tx_acked + dat[1]; in j1939_xtp_rx_cts_one()
1447 if (session->pkt.last > session->pkt.total) in j1939_xtp_rx_cts_one()
1449 session->pkt.last = session->pkt.total; in j1939_xtp_rx_cts_one()
1451 session->pkt.tx = session->pkt.tx_acked; in j1939_xtp_rx_cts_one()
1453 session->last_cmd = dat[0]; in j1939_xtp_rx_cts_one()
1455 j1939_tp_set_rxtimeout(session, 1250); in j1939_xtp_rx_cts_one()
1456 if (session->transmission) { in j1939_xtp_rx_cts_one()
1457 if (session->pkt.tx_acked) in j1939_xtp_rx_cts_one()
1458 j1939_sk_errqueue(session, in j1939_xtp_rx_cts_one()
1460 j1939_session_txtimer_cancel(session); in j1939_xtp_rx_cts_one()
1461 j1939_tp_schedule_txtimer(session, 0); in j1939_xtp_rx_cts_one()
1465 j1939_tp_set_rxtimeout(session, 550); in j1939_xtp_rx_cts_one()
1470 j1939_session_timers_cancel(session); in j1939_xtp_rx_cts_one()
1471 j1939_session_cancel(session, err); in j1939_xtp_rx_cts_one()
1478 struct j1939_session *session; in j1939_xtp_rx_cts() local
1480 session = j1939_session_get_by_addr(priv, &skcb->addr, true, in j1939_xtp_rx_cts()
1482 if (!session) in j1939_xtp_rx_cts()
1484 j1939_xtp_rx_cts_one(session, skb); in j1939_xtp_rx_cts()
1485 j1939_session_put(session); in j1939_xtp_rx_cts()
1491 struct j1939_session *session; in j1939_session_new() local
1494 session = kzalloc(sizeof(*session), gfp_any()); in j1939_session_new()
1495 if (!session) in j1939_session_new()
1498 INIT_LIST_HEAD(&session->active_session_list_entry); in j1939_session_new()
1499 INIT_LIST_HEAD(&session->sk_session_queue_entry); in j1939_session_new()
1500 kref_init(&session->kref); in j1939_session_new()
1503 session->priv = priv; in j1939_session_new()
1504 session->total_message_size = size; in j1939_session_new()
1505 session->state = J1939_SESSION_NEW; in j1939_session_new()
1507 skb_queue_head_init(&session->skb_queue); in j1939_session_new()
1508 skb_queue_tail(&session->skb_queue, skb); in j1939_session_new()
1511 memcpy(&session->skcb, skcb, sizeof(session->skcb)); in j1939_session_new()
1513 hrtimer_init(&session->txtimer, CLOCK_MONOTONIC, in j1939_session_new()
1515 session->txtimer.function = j1939_tp_txtimer; in j1939_session_new()
1516 hrtimer_init(&session->rxtimer, CLOCK_MONOTONIC, in j1939_session_new()
1518 session->rxtimer.function = j1939_tp_rxtimer; in j1939_session_new()
1521 __func__, session, skcb->addr.sa, skcb->addr.da); in j1939_session_new()
1523 return session; in j1939_session_new()
1533 struct j1939_session *session; in j1939_session_fresh_new() local
1546 session = j1939_session_new(priv, skb, size); in j1939_session_fresh_new()
1547 if (!session) { in j1939_session_fresh_new()
1555 return session; in j1939_session_fresh_new()
1558 int j1939_session_activate(struct j1939_session *session) in j1939_session_activate() argument
1560 struct j1939_priv *priv = session->priv; in j1939_session_activate()
1565 if (session->skcb.addr.type != J1939_SIMPLE) in j1939_session_activate()
1568 &session->skcb.addr, false, in j1939_session_activate()
1569 session->transmission); in j1939_session_activate()
1574 WARN_ON_ONCE(session->state != J1939_SESSION_NEW); in j1939_session_activate()
1575 list_add_tail(&session->active_session_list_entry, in j1939_session_activate()
1577 j1939_session_get(session); in j1939_session_activate()
1578 session->state = J1939_SESSION_ACTIVE; in j1939_session_activate()
1580 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", in j1939_session_activate()
1581 __func__, session); in j1939_session_activate()
1594 struct j1939_session *session; in j1939_xtp_rx_rts_session_new() local
1631 session = j1939_session_fresh_new(priv, len, &skcb); in j1939_xtp_rx_rts_session_new()
1632 if (!session) { in j1939_xtp_rx_rts_session_new()
1639 session->pkt.total = (len + 6) / 7; in j1939_xtp_rx_rts_session_new()
1640 session->pkt.block = 0xff; in j1939_xtp_rx_rts_session_new()
1642 if (dat[3] != session->pkt.total) in j1939_xtp_rx_rts_session_new()
1644 __func__, session, session->pkt.total, in j1939_xtp_rx_rts_session_new()
1646 session->pkt.total = dat[3]; in j1939_xtp_rx_rts_session_new()
1647 session->pkt.block = min(dat[3], dat[4]); in j1939_xtp_rx_rts_session_new()
1650 session->pkt.rx = 0; in j1939_xtp_rx_rts_session_new()
1651 session->pkt.tx = 0; in j1939_xtp_rx_rts_session_new()
1653 session->tskey = priv->rx_tskey++; in j1939_xtp_rx_rts_session_new()
1654 j1939_sk_errqueue(session, J1939_ERRQUEUE_RX_RTS); in j1939_xtp_rx_rts_session_new()
1656 ret = j1939_session_activate(session); in j1939_xtp_rx_rts_session_new()
1668 __func__, session, skcb.addr.sa, skcb.addr.da); in j1939_xtp_rx_rts_session_new()
1669 j1939_session_put(session); in j1939_xtp_rx_rts_session_new()
1673 return session; in j1939_xtp_rx_rts_session_new()
1676 static int j1939_xtp_rx_rts_session_active(struct j1939_session *session, in j1939_xtp_rx_rts_session_active() argument
1680 struct j1939_priv *priv = session->priv; in j1939_xtp_rx_rts_session_active()
1682 if (!session->transmission) { in j1939_xtp_rx_rts_session_active()
1683 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_rts_session_active()
1687 j1939_session_timers_cancel(session); in j1939_xtp_rx_rts_session_active()
1688 j1939_session_cancel(session, J1939_XTP_ABORT_BUSY); in j1939_xtp_rx_rts_session_active()
1691 if (session->last_cmd != 0) { in j1939_xtp_rx_rts_session_active()
1694 __func__, session, skcb->addr.sa, skcb->addr.da, in j1939_xtp_rx_rts_session_active()
1695 session->last_cmd); in j1939_xtp_rx_rts_session_active()
1697 j1939_session_timers_cancel(session); in j1939_xtp_rx_rts_session_active()
1698 j1939_session_cancel(session, J1939_XTP_ABORT_BUSY); in j1939_xtp_rx_rts_session_active()
1699 if (session->transmission) in j1939_xtp_rx_rts_session_active()
1700 j1939_session_deactivate_activate_next(session); in j1939_xtp_rx_rts_session_active()
1705 if (session->skcb.addr.sa != skcb->addr.sa || in j1939_xtp_rx_rts_session_active()
1706 session->skcb.addr.da != skcb->addr.da) in j1939_xtp_rx_rts_session_active()
1708 __func__, session, in j1939_xtp_rx_rts_session_active()
1709 session->skcb.addr.sa, skcb->addr.sa, in j1939_xtp_rx_rts_session_active()
1710 session->skcb.addr.da, skcb->addr.da); in j1939_xtp_rx_rts_session_active()
1715 session->skcb.addr.sa = skcb->addr.sa; in j1939_xtp_rx_rts_session_active()
1716 session->skcb.addr.da = skcb->addr.da; in j1939_xtp_rx_rts_session_active()
1718 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_rts_session_active()
1727 struct j1939_session *session; in j1939_xtp_rx_rts() local
1730 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_rts()
1733 if (!session) { in j1939_xtp_rx_rts()
1752 session = j1939_xtp_rx_rts_session_new(priv, skb); in j1939_xtp_rx_rts()
1753 if (!session) { in j1939_xtp_rx_rts()
1760 if (j1939_xtp_rx_rts_session_active(session, skb)) { in j1939_xtp_rx_rts()
1761 j1939_session_put(session); in j1939_xtp_rx_rts()
1765 session->last_cmd = cmd; in j1939_xtp_rx_rts()
1768 if (!session->transmission) in j1939_xtp_rx_rts()
1769 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_rts()
1771 if (!session->transmission) { in j1939_xtp_rx_rts()
1772 j1939_session_txtimer_cancel(session); in j1939_xtp_rx_rts()
1773 j1939_tp_schedule_txtimer(session, 0); in j1939_xtp_rx_rts()
1775 j1939_tp_set_rxtimeout(session, 1250); in j1939_xtp_rx_rts()
1778 j1939_session_put(session); in j1939_xtp_rx_rts()
1781 static void j1939_xtp_rx_dpo_one(struct j1939_session *session, in j1939_xtp_rx_dpo_one() argument
1786 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_dpo_one()
1789 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_dpo_one()
1792 session->pkt.dpo = j1939_etp_ctl_to_packet(skb->data); in j1939_xtp_rx_dpo_one()
1793 session->last_cmd = dat[0]; in j1939_xtp_rx_dpo_one()
1794 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_dpo_one()
1796 if (!session->transmission) in j1939_xtp_rx_dpo_one()
1797 j1939_sk_errqueue(session, J1939_ERRQUEUE_RX_DPO); in j1939_xtp_rx_dpo_one()
1804 struct j1939_session *session; in j1939_xtp_rx_dpo() local
1806 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dpo()
1808 if (!session) { in j1939_xtp_rx_dpo()
1814 j1939_xtp_rx_dpo_one(session, skb); in j1939_xtp_rx_dpo()
1815 j1939_session_put(session); in j1939_xtp_rx_dpo()
1818 static void j1939_xtp_rx_dat_one(struct j1939_session *session, in j1939_xtp_rx_dat_one() argument
1822 struct j1939_priv *priv = session->priv; in j1939_xtp_rx_dat_one()
1842 switch (session->last_cmd) { in j1939_xtp_rx_dat_one()
1857 session, session->last_cmd); in j1939_xtp_rx_dat_one()
1861 packet = (dat[0] - 1 + session->pkt.dpo); in j1939_xtp_rx_dat_one()
1862 if (packet > session->pkt.total || in j1939_xtp_rx_dat_one()
1863 (session->pkt.rx + 1) > session->pkt.total) { in j1939_xtp_rx_dat_one()
1865 __func__, session); in j1939_xtp_rx_dat_one()
1869 se_skb = j1939_session_skb_get_by_offset(session, packet * 7); in j1939_xtp_rx_dat_one()
1872 session); in j1939_xtp_rx_dat_one()
1883 __func__, session, nbytes, skb->len); in j1939_xtp_rx_dat_one()
1888 if (!session->transmission) { in j1939_xtp_rx_dat_one()
1897 __func__, session, in j1939_xtp_rx_dat_one()
1902 if (packet == session->pkt.rx) in j1939_xtp_rx_dat_one()
1903 session->pkt.rx++; in j1939_xtp_rx_dat_one()
1906 j1939_cb_is_broadcast(&session->skcb)) { in j1939_xtp_rx_dat_one()
1907 if (session->pkt.rx >= session->pkt.total) in j1939_xtp_rx_dat_one()
1913 if (session->pkt.rx >= session->pkt.last) in j1939_xtp_rx_dat_one()
1918 j1939_session_timers_cancel(session); in j1939_xtp_rx_dat_one()
1919 j1939_session_completed(session); in j1939_xtp_rx_dat_one()
1921 if (!session->transmission) in j1939_xtp_rx_dat_one()
1922 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_dat_one()
1924 j1939_tp_set_rxtimeout(session, 1250); in j1939_xtp_rx_dat_one()
1925 if (!session->transmission) in j1939_xtp_rx_dat_one()
1926 j1939_tp_schedule_txtimer(session, 0); in j1939_xtp_rx_dat_one()
1928 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_dat_one()
1930 session->last_cmd = 0xff; in j1939_xtp_rx_dat_one()
1932 j1939_session_put(session); in j1939_xtp_rx_dat_one()
1938 j1939_session_timers_cancel(session); in j1939_xtp_rx_dat_one()
1939 j1939_session_cancel(session, abort); in j1939_xtp_rx_dat_one()
1940 j1939_session_put(session); in j1939_xtp_rx_dat_one()
1946 struct j1939_session *session; in j1939_xtp_rx_dat() local
1951 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dat()
1953 if (!session) in j1939_xtp_rx_dat()
1957 j1939_xtp_rx_dat_one(session, skb); in j1939_xtp_rx_dat()
1961 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dat()
1963 if (!session) in j1939_xtp_rx_dat()
1967 j1939_xtp_rx_dat_one(session, skb); in j1939_xtp_rx_dat()
1971 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dat()
1973 if (session) in j1939_xtp_rx_dat()
1974 j1939_xtp_rx_dat_one(session, skb); in j1939_xtp_rx_dat()
1983 struct j1939_session *session; in j1939_tp_send() local
2021 session = j1939_session_new(priv, skb, size); in j1939_tp_send()
2022 if (!session) in j1939_tp_send()
2027 session->sk = skb->sk; in j1939_tp_send()
2028 session->transmission = true; in j1939_tp_send()
2029 session->pkt.total = (size + 6) / 7; in j1939_tp_send()
2030 session->pkt.block = skcb->addr.type == J1939_ETP ? 255 : in j1939_tp_send()
2031 min(j1939_tp_block ?: 255, session->pkt.total); in j1939_tp_send()
2033 if (j1939_cb_is_broadcast(&session->skcb)) in j1939_tp_send()
2035 session->pkt.last = session->pkt.total; in j1939_tp_send()
2037 skcb->tskey = atomic_inc_return(&session->sk->sk_tskey) - 1; in j1939_tp_send()
2038 session->tskey = skcb->tskey; in j1939_tp_send()
2040 return session; in j1939_tp_send()
2171 struct j1939_session *session; in j1939_simple_recv() local
2181 session = j1939_session_get_simple(priv, skb); in j1939_simple_recv()
2183 if (!session) { in j1939_simple_recv()
2190 j1939_session_timers_cancel(session); in j1939_simple_recv()
2191 j1939_session_deactivate(session); in j1939_simple_recv()
2192 j1939_session_put(session); in j1939_simple_recv()
2197 struct j1939_session *session, *saved; in j1939_cancel_active_session() local
2201 list_for_each_entry_safe(session, saved, in j1939_cancel_active_session()
2204 if (!sk || sk == session->sk) { in j1939_cancel_active_session()
2205 if (hrtimer_try_to_cancel(&session->txtimer) == 1) in j1939_cancel_active_session()
2206 j1939_session_put(session); in j1939_cancel_active_session()
2207 if (hrtimer_try_to_cancel(&session->rxtimer) == 1) in j1939_cancel_active_session()
2208 j1939_session_put(session); in j1939_cancel_active_session()
2210 session->err = ESHUTDOWN; in j1939_cancel_active_session()
2211 j1939_session_deactivate_locked(session); in j1939_cancel_active_session()