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sctp: add support for generating add stream change event notification

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This patch is to add Stream Change Event described in rfc6525
section 6.1.3.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-03-10 12:11:08 +08:00 • committed by David S. Miller
parent 692787cef6
commit b444153fb5
3 changed files with 47 additions and 0 deletions
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15
include/uapi/linux/sctp.h
View file

@ -513,6 +513,17 @@ struct sctp_assoc_reset_event {
__u32 assocreset_remote_tsn;
};
#define SCTP_ASSOC_CHANGE_DENIED 0x0004
#define SCTP_ASSOC_CHANGE_FAILED 0x0008
struct sctp_stream_change_event {
__u16 strchange_type;
__u16 strchange_flags;
__u32 strchange_length;
sctp_assoc_t strchange_assoc_id;
__u16 strchange_instrms;
__u16 strchange_outstrms;
};
/*
* Described in Section 7.3
* Ancillary Data and Notification Interest Options
@ -530,6 +541,7 @@ struct sctp_event_subscribe {
__u8 sctp_sender_dry_event;
__u8 sctp_stream_reset_event;
__u8 sctp_assoc_reset_event;
__u8 sctp_stream_change_event;
};
/*
@ -556,6 +568,7 @@ union sctp_notification {
struct sctp_sender_dry_event sn_sender_dry_event;
struct sctp_stream_reset_event sn_strreset_event;
struct sctp_assoc_reset_event sn_assocreset_event;
struct sctp_stream_change_event sn_strchange_event;
};
/* Section 5.3.1
@ -587,6 +600,8 @@ enum sctp_sn_type {
#define SCTP_STREAM_RESET_EVENT SCTP_STREAM_RESET_EVENT
SCTP_ASSOC_RESET_EVENT,
#define SCTP_ASSOC_RESET_EVENT SCTP_ASSOC_RESET_EVENT
SCTP_STREAM_CHANGE_EVENT,
#define SCTP_STREAM_CHANGE_EVENT SCTP_STREAM_CHANGE_EVENT
};
/* Notification error codes used to fill up the error fields in some