diff options
Diffstat (limited to 'include/net/sctp/ulpevent.h')
| -rw-r--r-- | include/net/sctp/ulpevent.h | 162 |
1 files changed, 87 insertions, 75 deletions
diff --git a/include/net/sctp/ulpevent.h b/include/net/sctp/ulpevent.h index 6e90b83a7013..8d0edaf22025 100644 --- a/include/net/sctp/ulpevent.h +++ b/include/net/sctp/ulpevent.h @@ -6,34 +6,34 @@ * Copyright (c) 2001 Nokia, Inc. * Copyright (c) 2001 La Monte H.P. Yarroll * - * These are the definitions needed for the sctp_ulpevent type. The + * These are the definitions needed for the sctp_ulpevent type. The * sctp_ulpevent type is used to carry information from the state machine - * upwards to the ULP. - * - * The SCTP reference implementation is free software; - * you can redistribute it and/or modify it under the terms of + * upwards to the ULP. + * + * The SCTP reference implementation is free software; + * you can redistribute it and/or modify it under the terms of * the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. - * - * the SCTP reference implementation is distributed in the hope that it + * + * the SCTP reference implementation is distributed in the hope that it * will be useful, but WITHOUT ANY WARRANTY; without even the implied * ************************ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with GNU CC; see the file COPYING. If not, write to * the Free Software Foundation, 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - * + * Boston, MA 02111-1307, USA. + * * Please send any bug reports or fixes you make to one of the * following email addresses: - * + * * Jon Grimm <jgrimm@us.ibm.com> * La Monte H.P. Yarroll <piggy@acm.org> * Karl Knutson <karl@athena.chicago.il.us> - * + * * Any bugs reported given to us we will try to fix... any fixes shared will * be incorporated into the next SCTP release. */ @@ -46,85 +46,97 @@ /* Warning: This sits inside an skb.cb[] area. Be very careful of * growing this structure as it is at the maximum limit now. */ -typedef struct sctp_ulpevent { - int malloced; - sctp_association_t *asoc; - struct sk_buff *parent; +struct sctp_ulpevent { + struct sctp_association *asoc; struct sctp_sndrcvinfo sndrcvinfo; - int chunk_flags; /* Temp. until we get a new chunk_t */ int msg_flags; -} sctp_ulpevent_t; - - -sctp_ulpevent_t *sctp_ulpevent_new(int size, int msg_flags, int priority); - -sctp_ulpevent_t *sctp_ulpevent_init(sctp_ulpevent_t *event, struct sk_buff *skb, int msg_flags); - -void sctp_ulpevent_free(sctp_ulpevent_t *event); - -int sctp_ulpevent_is_notification(const sctp_ulpevent_t *event); - -sctp_ulpevent_t *sctp_ulpevent_make_assoc_change( - const struct SCTP_association *asoc, - __u16 flags, - __u16 state, - __u16 error, - __u16 outbound, - __u16 inbound, - int priority); - -sctp_ulpevent_t *sctp_ulpevent_make_peer_addr_change( - const struct SCTP_association *asoc, - const struct sockaddr_storage *aaddr, - int flags, - int state, - int error, - int priority); - -sctp_ulpevent_t *sctp_ulpevent_make_remote_error( - const struct SCTP_association *asoc, - struct SCTP_chunk *chunk, - __u16 flags, - int priority); -sctp_ulpevent_t *sctp_ulpevent_make_send_failed( - const struct SCTP_association *asoc, - struct SCTP_chunk *chunk, - __u16 flags, - __u32 error, - int priority); - -sctp_ulpevent_t *sctp_ulpevent_make_shutdown_event( - const struct SCTP_association *asoc, - __u16 flags, - int priority); - -sctp_ulpevent_t *sctp_ulpevent_make_rcvmsg(struct SCTP_association *asoc, - struct SCTP_chunk *chunk, - int priority); - -void sctp_ulpevent_read_sndrcvinfo(const sctp_ulpevent_t *event, - struct msghdr *msghdr); - -__u16 sctp_ulpevent_get_notification_type(const sctp_ulpevent_t *event); +}; +/* Retrieve the skb this event sits inside of. */ +static inline struct sk_buff *sctp_event2skb(struct sctp_ulpevent *ev) +{ + return container_of((void *)ev, struct sk_buff, cb); +} +/* Retrieve & cast the event sitting inside the skb. */ +static inline struct sctp_ulpevent *sctp_skb2event(struct sk_buff *skb) +{ + return (struct sctp_ulpevent *)skb->cb; +} + +struct sctp_ulpevent *sctp_ulpevent_new(int size, int flags, int priority); +struct sctp_ulpevent *sctp_ulpevent_init(struct sctp_ulpevent *, int flags); +void sctp_ulpevent_free(struct sctp_ulpevent *); +int sctp_ulpevent_is_notification(const struct sctp_ulpevent *); + +struct sctp_ulpevent *sctp_ulpevent_make_assoc_change( + const struct sctp_association *asoc, + __u16 flags, + __u16 state, + __u16 error, + __u16 outbound, + __u16 inbound, + int priority); + +struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change( + const struct sctp_association *asoc, + const struct sockaddr_storage *aaddr, + int flags, + int state, + int error, + int priority); + +struct sctp_ulpevent *sctp_ulpevent_make_remote_error( + const struct sctp_association *asoc, + struct sctp_chunk *chunk, + __u16 flags, + int priority); +struct sctp_ulpevent *sctp_ulpevent_make_send_failed( + const struct sctp_association *asoc, + struct sctp_chunk *chunk, + __u16 flags, + __u32 error, + int priority); + +struct sctp_ulpevent *sctp_ulpevent_make_shutdown_event( + const struct sctp_association *asoc, + __u16 flags, + int priority); + +struct sctp_ulpevent *sctp_ulpevent_make_pdapi( + const struct sctp_association *asoc, + __u32 indication, int priority); + +struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc, + struct sctp_chunk *chunk, + int priority); + +void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event, + struct msghdr *); +__u16 sctp_ulpevent_get_notification_type(const struct sctp_ulpevent *event); + +/* Is this event type enabled? */ +static inline int sctp_ulpevent_type_enabled(__u16 sn_type, + struct sctp_event_subscribe *mask) +{ + char *amask = (char *) mask; + return amask[sn_type - SCTP_SN_TYPE_BASE]; +} /* Given an event subscription, is this event enabled? */ -static inline int sctp_ulpevent_is_enabled(const sctp_ulpevent_t *event, - const struct sctp_event_subscribe *mask) +static inline int sctp_ulpevent_is_enabled(const struct sctp_ulpevent *event, + struct sctp_event_subscribe *mask) { - const char *amask = (const char *) mask; __u16 sn_type; int enabled = 1; if (sctp_ulpevent_is_notification(event)) { sn_type = sctp_ulpevent_get_notification_type(event); - enabled = amask[sn_type - SCTP_SN_TYPE_BASE]; + enabled = sctp_ulpevent_type_enabled(sn_type, mask); } return enabled; } - #endif /* __sctp_ulpevent_h__ */ |