diff options
Diffstat (limited to 'net/tipc/subscr.c')
| -rw-r--r-- | net/tipc/subscr.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index 251065dfd8df..68e26470c516 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -118,15 +118,19 @@ void tipc_subscrp_convert_seq(struct tipc_name_seq *in, int swap, void tipc_subscrp_report_overlap(struct tipc_subscription *sub, u32 found_lower, u32 found_upper, u32 event, u32 port_ref, - u32 node, int must) + u32 node, u32 scope, int must) { + u32 filter = htohl(sub->evt.s.filter, sub->swap); struct tipc_name_seq seq; tipc_subscrp_convert_seq(&sub->evt.s.seq, sub->swap, &seq); if (!tipc_subscrp_check_overlap(&seq, found_lower, found_upper)) return; - if (!must && - !(htohl(sub->evt.s.filter, sub->swap) & TIPC_SUB_PORTS)) + if (!must && !(filter & TIPC_SUB_PORTS)) + return; + if (filter & TIPC_SUB_CLUSTER_SCOPE && scope == TIPC_NODE_SCOPE) + return; + if (filter & TIPC_SUB_NODE_SCOPE && scope != TIPC_NODE_SCOPE) return; tipc_subscrp_send_event(sub, found_lower, found_upper, event, port_ref, @@ -285,21 +289,21 @@ static struct tipc_subscription *tipc_subscrp_create(struct net *net, return sub; } -static void tipc_subscrp_subscribe(struct net *net, struct tipc_subscr *s, - struct tipc_subscriber *subscriber, int swap) +static int tipc_subscrp_subscribe(struct net *net, struct tipc_subscr *s, + struct tipc_subscriber *subscriber, int swap, + bool status) { - struct tipc_net *tn = net_generic(net, tipc_net_id); struct tipc_subscription *sub = NULL; u32 timeout; sub = tipc_subscrp_create(net, s, swap); if (!sub) - return tipc_conn_terminate(tn->topsrv, subscriber->conid); + return -1; spin_lock_bh(&subscriber->lock); list_add(&sub->subscrp_list, &subscriber->subscrp_list); sub->subscriber = subscriber; - tipc_nametbl_subscribe(sub); + tipc_nametbl_subscribe(sub, status); tipc_subscrb_get(subscriber); spin_unlock_bh(&subscriber->lock); @@ -308,6 +312,7 @@ static void tipc_subscrp_subscribe(struct net *net, struct tipc_subscr *s, if (timeout != TIPC_WAIT_FOREVER) mod_timer(&sub->timer, jiffies + msecs_to_jiffies(timeout)); + return 0; } /* Handle one termination request for the subscriber */ @@ -317,12 +322,13 @@ static void tipc_subscrb_release_cb(int conid, void *usr_data) } /* Handle one request to create a new subscription for the subscriber */ -static void tipc_subscrb_rcv_cb(struct net *net, int conid, - struct sockaddr_tipc *addr, void *usr_data, - void *buf, size_t len) +static int tipc_subscrb_rcv_cb(struct net *net, int conid, + struct sockaddr_tipc *addr, void *usr_data, + void *buf, size_t len) { struct tipc_subscriber *subscriber = usr_data; struct tipc_subscr *s = (struct tipc_subscr *)buf; + bool status; int swap; /* Determine subscriber's endianness */ @@ -332,10 +338,11 @@ static void tipc_subscrb_rcv_cb(struct net *net, int conid, /* Detect & process a subscription cancellation request */ if (s->filter & htohl(TIPC_SUB_CANCEL, swap)) { s->filter &= ~htohl(TIPC_SUB_CANCEL, swap); - return tipc_subscrp_cancel(s, subscriber); + tipc_subscrp_cancel(s, subscriber); + return 0; } - - tipc_subscrp_subscribe(net, s, subscriber, swap); + status = !(s->filter & htohl(TIPC_SUB_NO_STATUS, swap)); + return tipc_subscrp_subscribe(net, s, subscriber, swap, status); } /* Handle one request to establish a new subscriber */ |