diff options
| -rw-r--r-- | net/tipc/name_table.c | 14 | ||||
| -rw-r--r-- | net/tipc/subscr.c | 33 | ||||
| -rw-r--r-- | net/tipc/subscr.h | 6 |
3 files changed, 37 insertions, 16 deletions
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 91fce70291a8..777b979b8463 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -418,6 +418,9 @@ static void tipc_nameseq_subscribe(struct name_seq *nseq, struct tipc_subscription *s) { struct sub_seq *sseq = nseq->sseqs; + struct tipc_name_seq ns; + + tipc_subscrp_convert_seq(&s->evt.s.seq, s->swap, &ns); list_add(&s->nameseq_list, &nseq->subscriptions); @@ -425,7 +428,7 @@ static void tipc_nameseq_subscribe(struct name_seq *nseq, return; while (sseq != &nseq->sseqs[nseq->first_free]) { - if (tipc_subscrp_check_overlap(s, sseq->lower, sseq->upper)) { + if (tipc_subscrp_check_overlap(&ns, sseq->lower, sseq->upper)) { struct publication *crs; struct name_info *info = sseq->info; int must_report = 1; @@ -722,9 +725,10 @@ int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref, void tipc_nametbl_subscribe(struct tipc_subscription *s) { struct tipc_net *tn = net_generic(s->net, tipc_net_id); - u32 type = s->seq.type; + u32 type = tipc_subscrp_convert_seq_type(s->evt.s.seq.type, s->swap); int index = hash(type); struct name_seq *seq; + struct tipc_name_seq ns; spin_lock_bh(&tn->nametbl_lock); seq = nametbl_find_seq(s->net, type); @@ -735,8 +739,9 @@ void tipc_nametbl_subscribe(struct tipc_subscription *s) tipc_nameseq_subscribe(seq, s); spin_unlock_bh(&seq->lock); } else { + tipc_subscrp_convert_seq(&s->evt.s.seq, s->swap, &ns); pr_warn("Failed to create subscription for {%u,%u,%u}\n", - s->seq.type, s->seq.lower, s->seq.upper); + ns.type, ns.lower, ns.upper); } spin_unlock_bh(&tn->nametbl_lock); } @@ -748,9 +753,10 @@ void tipc_nametbl_unsubscribe(struct tipc_subscription *s) { struct tipc_net *tn = net_generic(s->net, tipc_net_id); struct name_seq *seq; + u32 type = tipc_subscrp_convert_seq_type(s->evt.s.seq.type, s->swap); spin_lock_bh(&tn->nametbl_lock); - seq = nametbl_find_seq(s->net, s->seq.type); + seq = nametbl_find_seq(s->net, type); if (seq != NULL) { spin_lock_bh(&seq->lock); list_del_init(&s->nameseq_list); diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index cef0b6b967d3..5f3100e964cf 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -92,23 +92,39 @@ static void tipc_subscrp_send_event(struct tipc_subscription *sub, * * Returns 1 if there is overlap, otherwise 0. */ -int tipc_subscrp_check_overlap(struct tipc_subscription *sub, u32 found_lower, +int tipc_subscrp_check_overlap(struct tipc_name_seq *seq, u32 found_lower, u32 found_upper) { - if (found_lower < sub->seq.lower) - found_lower = sub->seq.lower; - if (found_upper > sub->seq.upper) - found_upper = sub->seq.upper; + if (found_lower < seq->lower) + found_lower = seq->lower; + if (found_upper > seq->upper) + found_upper = seq->upper; if (found_lower > found_upper) return 0; return 1; } +u32 tipc_subscrp_convert_seq_type(u32 type, int swap) +{ + return htohl(type, swap); +} + +void tipc_subscrp_convert_seq(struct tipc_name_seq *in, int swap, + struct tipc_name_seq *out) +{ + out->type = htohl(in->type, swap); + out->lower = htohl(in->lower, swap); + out->upper = htohl(in->upper, 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) { - if (!tipc_subscrp_check_overlap(sub, found_lower, found_upper)) + 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)) @@ -252,12 +268,9 @@ static int tipc_subscrp_create(struct net *net, struct tipc_subscr *s, /* Initialize subscription object */ sub->net = net; - sub->seq.type = htohl(s->seq.type, swap); - sub->seq.lower = htohl(s->seq.lower, swap); - sub->seq.upper = htohl(s->seq.upper, swap); filter = htohl(s->filter, swap); if (((filter & TIPC_SUB_PORTS) && (filter & TIPC_SUB_SERVICE)) || - (sub->seq.lower > sub->seq.upper)) { + (htohl(s->seq.lower, swap) > htohl(s->seq.upper, swap))) { pr_warn("Subscription rejected, illegal request\n"); kfree(sub); return -EINVAL; diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h index 9e69dbf05626..be60103082c9 100644 --- a/net/tipc/subscr.h +++ b/net/tipc/subscr.h @@ -58,7 +58,6 @@ struct tipc_subscriber; */ struct tipc_subscription { struct tipc_subscriber *subscriber; - struct tipc_name_seq seq; struct net *net; struct timer_list timer; struct list_head nameseq_list; @@ -67,11 +66,14 @@ struct tipc_subscription { struct tipc_event evt; }; -int tipc_subscrp_check_overlap(struct tipc_subscription *sub, u32 found_lower, +int tipc_subscrp_check_overlap(struct tipc_name_seq *seq, u32 found_lower, u32 found_upper); void tipc_subscrp_report_overlap(struct tipc_subscription *sub, u32 found_lower, u32 found_upper, u32 event, u32 port_ref, u32 node, int must); +void tipc_subscrp_convert_seq(struct tipc_name_seq *in, int swap, + struct tipc_name_seq *out); +u32 tipc_subscrp_convert_seq_type(u32 type, int swap); int tipc_topsrv_start(struct net *net); void tipc_topsrv_stop(struct net *net); 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