diff options
author | David S. Miller <davem@davemloft.net> | 2017-02-19 18:18:01 -0500 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-02-19 18:18:01 -0500 |
commit | 585396bc804d4e59d9591054ec12637d1698284c (patch) | |
tree | 3f2b0dda8f276609ddca794aca87c95f2218e0a3 /include/net | |
parent | 61845d2072150e896f2f18f1d879956e453ee8fd (diff) | |
parent | d884aa635be6247a1bc5b0fa60d8a16b5f48e279 (diff) |
Merge branch 'sctp-rcv-side-stream-reconf-ssn-reset-req-chunk'
Xin Long says:
====================
sctp: add receiver-side procedures for stream reconf ssn reset request chunk
Patch 3/7 and 4/7 are to implement receiver-side procedures for the
Outgoing and Incoming SSN Reset Request Parameter described in rfc6525
section 5.2.2 and 5.2.3
Patch 1/7 and 2/7 are ahead of them to define some apis.
Patch 5/7-7/7 are to add the process of reconf chunk event in rx path.
Note that with this patchset, asoc->reconf_enable has no chance yet to
be set, until the patch "sctp: add get and set sockopt for reconf_enable"
is applied in the future. As we can not just enable it when sctp is not
capable of processing reconf chunk yet.
v1->v2:
- re-split the patchset and make sure it has no dead codes for review.
- rename the titles of the commits and improve some changelogs.
- drop __packed from some structures in patch 1/7.
- fix some kbuild warnings in patch 3/7 by initializing str_p = NULL.
- sctp_chunk_lookup_strreset_param changes to return sctp_paramhdr_t *
and uses sctp_strreset_tsnreq to access request_seq in patch 3/7.
- use __u<size> in uapi sctp.h in patch 1/7.
- do str_list endian conversion when generating stream_reset_event in patch
2/7.
- remove str_list endian conversion, pass resp_seq param with network endian
to lookup_strreset_param in 3/7.
- move str_list endian conversion out of sctp_make_strreset_req, so that
sctp_make_strreset_req can be used more conveniently to process inreq in
patch 4/7.
- remove sctp_merge_reconf_chunk and not support response with multiparam
in patch 6/7.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r-- | include/net/sctp/constants.h | 3 | ||||
-rw-r--r-- | include/net/sctp/sm.h | 21 | ||||
-rw-r--r-- | include/net/sctp/ulpevent.h | 4 |
3 files changed, 28 insertions, 0 deletions
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h index 3567c971cf3b..b07a745ab69f 100644 --- a/include/net/sctp/constants.h +++ b/include/net/sctp/constants.h @@ -60,11 +60,14 @@ enum { SCTP_DEFAULT_INSTREAMS = SCTP_MAX_STREAM }; #define SCTP_NUM_PRSCTP_CHUNK_TYPES 1 +#define SCTP_NUM_RECONF_CHUNK_TYPES 1 + #define SCTP_NUM_AUTH_CHUNK_TYPES 1 #define SCTP_NUM_CHUNK_TYPES (SCTP_NUM_BASE_CHUNK_TYPES + \ SCTP_NUM_ADDIP_CHUNK_TYPES +\ SCTP_NUM_PRSCTP_CHUNK_TYPES +\ + SCTP_NUM_RECONF_CHUNK_TYPES +\ SCTP_NUM_AUTH_CHUNK_TYPES) /* These are the different flavours of event. */ diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h index 3675fde3a26e..b6f682ec184a 100644 --- a/include/net/sctp/sm.h +++ b/include/net/sctp/sm.h @@ -135,6 +135,7 @@ sctp_state_fn_t sctp_sf_do_8_5_1_E_sa; sctp_state_fn_t sctp_sf_cookie_echoed_err; sctp_state_fn_t sctp_sf_do_asconf; sctp_state_fn_t sctp_sf_do_asconf_ack; +sctp_state_fn_t sctp_sf_do_reconf; sctp_state_fn_t sctp_sf_do_9_2_reshutack; sctp_state_fn_t sctp_sf_eat_fwd_tsn; sctp_state_fn_t sctp_sf_eat_fwd_tsn_fast; @@ -270,9 +271,29 @@ struct sctp_chunk *sctp_make_strreset_tsnreq( struct sctp_chunk *sctp_make_strreset_addstrm( const struct sctp_association *asoc, __u16 out, __u16 in); +struct sctp_chunk *sctp_make_strreset_resp( + const struct sctp_association *asoc, + __u32 result, __u32 sn); +struct sctp_chunk *sctp_make_strreset_tsnresp( + struct sctp_association *asoc, + __u32 result, __u32 sn, + __u32 sender_tsn, __u32 receiver_tsn); +bool sctp_verify_reconf(const struct sctp_association *asoc, + struct sctp_chunk *chunk, + struct sctp_paramhdr **errp); void sctp_chunk_assign_tsn(struct sctp_chunk *); void sctp_chunk_assign_ssn(struct sctp_chunk *); +/* Prototypes for stream-processing functions. */ +struct sctp_chunk *sctp_process_strreset_outreq( + struct sctp_association *asoc, + union sctp_params param, + struct sctp_ulpevent **evp); +struct sctp_chunk *sctp_process_strreset_inreq( + struct sctp_association *asoc, + union sctp_params param, + struct sctp_ulpevent **evp); + /* Prototypes for statetable processing. */ int sctp_do_sm(struct net *net, sctp_event_t event_type, sctp_subtype_t subtype, diff --git a/include/net/sctp/ulpevent.h b/include/net/sctp/ulpevent.h index 2c098cd7e7e2..324b5965fc4d 100644 --- a/include/net/sctp/ulpevent.h +++ b/include/net/sctp/ulpevent.h @@ -128,6 +128,10 @@ struct sctp_ulpevent *sctp_ulpevent_make_authkey( struct sctp_ulpevent *sctp_ulpevent_make_sender_dry_event( const struct sctp_association *asoc, gfp_t gfp); +struct sctp_ulpevent *sctp_ulpevent_make_stream_reset_event( + const struct sctp_association *asoc, __u16 flags, + __u16 stream_num, __u16 *stream_list, gfp_t gfp); + void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event, struct msghdr *); void sctp_ulpevent_read_rcvinfo(const struct sctp_ulpevent *event, |