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| author | Xin Long <lucien.xin@gmail.com> | 2018-07-02 13:21:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-04 05:36:54 +0300 |
| commit | 8a9c58d28d0f66569737a3295116710ed24573cd (patch) | |
| tree | 4d530788207cca98e68faee6d5a4145d5d8befc4 /include/net | |
| parent | 69b9e1e07d98b57b972df3c44647ca8795284d39 (diff) | |
| download | linux-8a9c58d28d0f66569737a3295116710ed24573cd.tar.xz | |
sctp: add support for dscp and flowlabel per transport
Like some other per transport params, flowlabel and dscp are added
in transport, asoc and sctp_sock. By default, transport sets its
value from asoc's, and asoc does it from sctp_sock. flowlabel
only works for ipv6 transport.
Other than that they need to be passed down in sctp_xmit, flow4/6
also needs to set them before looking up route in get_dst.
Note that it uses '& 0x100000' to check if flowlabel is set and
'& 0x1' (tos 1st bit is unused) to check if dscp is set by users,
so that they could be set to 0 by sockopt in next patch.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sctp/structs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 701a51736fa5..ab869e0d8326 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -193,6 +193,9 @@ struct sctp_sock { /* This is the max_retrans value for new associations. */ __u16 pathmaxrxt; + __u32 flowlabel; + __u8 dscp; + /* The initial Path MTU to use for new associations. */ __u32 pathmtu; @@ -895,6 +898,9 @@ struct sctp_transport { */ __u16 pathmaxrxt; + __u32 flowlabel; + __u8 dscp; + /* This is the partially failed retrans value for the transport * and will be initialized from the assocs value. This can be changed * using the SCTP_PEER_ADDR_THLDS socket option @@ -1772,6 +1778,9 @@ struct sctp_association { */ __u16 pathmaxrxt; + __u32 flowlabel; + __u8 dscp; + /* Flag that path mtu update is pending */ __u8 pmtu_pending; |