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| author | Xin Long <lucien.xin@gmail.com> | 2017-12-08 14:03:59 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-11 17:23:04 +0100 |
| commit | 96b120b3c1397c90b64d1f4b2300fb7ce4aa8a68 (patch) | |
| tree | 8adff0f3c66c683e739a519a1b5d7cdc05cd65a7 /net/sctp/sm_make_chunk.c | |
| parent | sctp: add stream interleave enable members and sockopt (diff) | |
| download | linux-96b120b3c1397c90b64d1f4b2300fb7ce4aa8a68.tar.xz linux-96b120b3c1397c90b64d1f4b2300fb7ce4aa8a68.zip | |
sctp: add asoc intl_enable negotiation during 4 shakehands
asoc intl_enable will be set when local sp strm_interleave is set
and there's I-DATA chunk in init and init_ack extensions, as said
in section 2.2.1 of RFC8260.
asoc intl_enable indicates all data will be sent as I-DATA chunks.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/sm_make_chunk.c')
| -rw-r--r-- | net/sctp/sm_make_chunk.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index 9bf575f2e8ed..da33c8550170 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -228,7 +228,7 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc, struct sctp_inithdr init; union sctp_params addrs; struct sctp_sock *sp; - __u8 extensions[4]; + __u8 extensions[5]; size_t chunksize; __be16 types[2]; int num_ext = 0; @@ -278,6 +278,11 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc, if (sp->adaptation_ind) chunksize += sizeof(aiparam); + if (sp->strm_interleave) { + extensions[num_ext] = SCTP_CID_I_DATA; + num_ext += 1; + } + chunksize += vparam_len; /* Account for AUTH related parameters */ @@ -392,7 +397,7 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc, struct sctp_inithdr initack; union sctp_params addrs; struct sctp_sock *sp; - __u8 extensions[4]; + __u8 extensions[5]; size_t chunksize; int num_ext = 0; int cookie_len; @@ -442,6 +447,11 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc, if (sp->adaptation_ind) chunksize += sizeof(aiparam); + if (asoc->intl_enable) { + extensions[num_ext] = SCTP_CID_I_DATA; + num_ext += 1; + } + if (asoc->peer.auth_capable) { auth_random = (struct sctp_paramhdr *)asoc->c.auth_random; chunksize += ntohs(auth_random->length); @@ -2032,6 +2042,10 @@ static void sctp_process_ext_param(struct sctp_association *asoc, if (net->sctp.addip_enable) asoc->peer.asconf_capable = 1; break; + case SCTP_CID_I_DATA: + if (sctp_sk(asoc->base.sk)->strm_interleave) + asoc->intl_enable = 1; + break; default: break; } |