Re: [PATCH net-next 3/5] sctp: add spp_ipv6_flowlabel and spp_dscp for sctp_paddrparams
From: David Miller <davem@davemloft.net>
Date: 2018-06-25 07:31:29
Also in:
linux-sctp
From: Xin Long <lucien.xin@gmail.com> Date: Mon, 25 Jun 2018 10:14:35 +0800
quoted hunk ↗ jump to hunk
struct sctp_paddrparams {@@ -773,6 +775,8 @@ struct sctp_paddrparams { __u32 spp_pathmtu; __u32 spp_sackdelay; __u32 spp_flags; + __u32 spp_ipv6_flowlabel; + __u8 spp_dscp; } __attribute__((packed, aligned(4)));
I don't think you can change the size of this structure like this. This check in sctp_setsockopt_peer_addr_params(): if (optlen != sizeof(struct sctp_paddrparams)) return -EINVAL; is going to trigger in old kernels when executing programs built against the new struct definition.