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authorXin Long <lucien.xin@gmail.com>2018-07-02 13:21:12 +0300
committerDavid S. Miller <davem@davemloft.net>2018-07-04 05:36:54 +0300
commit8a9c58d28d0f66569737a3295116710ed24573cd (patch)
tree4d530788207cca98e68faee6d5a4145d5d8befc4 /include/linux/sctp.h
parent69b9e1e07d98b57b972df3c44647ca8795284d39 (diff)
downloadlinux-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/linux/sctp.h')
-rw-r--r--include/linux/sctp.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index b36c76635f18..83d94341e003 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -801,4 +801,11 @@ struct sctp_strreset_resptsn {
__be32 receivers_next_tsn;
};
+enum {
+ SCTP_DSCP_SET_MASK = 0x1,
+ SCTP_DSCP_VAL_MASK = 0xfc,
+ SCTP_FLOWLABEL_SET_MASK = 0x100000,
+ SCTP_FLOWLABEL_VAL_MASK = 0xfffff
+};
+
#endif /* __LINUX_SCTP_H__ */