diff options
Diffstat (limited to 'net/tipc/subscr.h')
| -rw-r--r-- | net/tipc/subscr.h | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h index aa015c233898..60b877531b66 100644 --- a/net/tipc/subscr.h +++ b/net/tipc/subscr.h @@ -3,6 +3,7 @@ * * Copyright (c) 2003-2017, Ericsson AB * Copyright (c) 2005-2007, 2012-2013, Wind River Systems + * Copyright (c) 2020-2021, Red Hat Inc * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -42,41 +43,43 @@ #define TIPC_MAX_SUBSCR 65535 #define TIPC_MAX_PUBL 65535 +struct publication; struct tipc_subscription; struct tipc_conn; /** * struct tipc_subscription - TIPC network topology subscription object - * @subscriber: pointer to its subscriber - * @seq: name sequence associated with subscription + * @s: host-endian copy of the user subscription + * @evt: template for events generated by subscription + * @kref: reference count for this subscription + * @net: network namespace associated with subscription * @timer: timer governing subscription duration (optional) - * @nameseq_list: adjacent subscriptions in name sequence's subscription list + * @service_list: adjacent subscriptions in name sequence's subscription list * @sub_list: adjacent subscriptions in subscriber's subscription list - * @evt: template for events generated by subscription + * @conid: connection identifier of topology server + * @inactive: true if this subscription is inactive + * @lock: serialize up/down and timer events */ struct tipc_subscription { + struct tipc_subscr s; + struct tipc_event evt; struct kref kref; struct net *net; struct timer_list timer; struct list_head service_list; struct list_head sub_list; - struct tipc_event evt; int conid; bool inactive; - spinlock_t lock; /* serialize up/down and timer events */ + spinlock_t lock; }; struct tipc_subscription *tipc_sub_subscribe(struct net *net, struct tipc_subscr *s, int conid); void tipc_sub_unsubscribe(struct tipc_subscription *sub); - -int tipc_sub_check_overlap(struct tipc_name_seq *seq, u32 found_lower, - u32 found_upper); void tipc_sub_report_overlap(struct tipc_subscription *sub, - u32 found_lower, u32 found_upper, - u32 event, u32 port, u32 node, - u32 scope, int must); + struct publication *p, + u32 event, bool must); int __net_init tipc_topsrv_init_net(struct net *net); void __net_exit tipc_topsrv_exit_net(struct net *net); @@ -96,6 +99,16 @@ void tipc_sub_get(struct tipc_subscription *subscription); (swap_ ? swab32(val__) : val__); \ }) +/* tipc_sub_write - write val_ to field_ of struct sub_ in user endian format + */ +#define tipc_sub_write(sub_, field_, val_) \ + ({ \ + struct tipc_subscr *sub__ = sub_; \ + u32 val__ = val_; \ + int swap_ = !((sub__)->filter & TIPC_FILTER_MASK); \ + (sub__)->field_ = swap_ ? swab32(val__) : val__; \ + }) + /* tipc_evt_write - write val_ to field_ of struct evt_ in user endian format */ #define tipc_evt_write(evt_, field_, val_) \ |