From: lucien <lucien.xin@gmail.com>
Date: Fri, 28 Aug 2015 09:45:58 +0000 (+0800)
Subject: sctp: ASCONF-ACK with Unresolvable Address should be sent
X-Git-Tag: omap-for-v4.3/fixes-rc1~110^2~33^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c5a9461812b21e1a1b7a09a83e97530b8867459;p=pandora-kernel.git

sctp: ASCONF-ACK with Unresolvable Address should be sent

RFC 5061:
    This is an opaque integer assigned by the sender to identify each
    request parameter.  The receiver of the ASCONF Chunk will copy this
    32-bit value into the ASCONF Response Correlation ID field of the
    ASCONF-ACK response parameter.  The sender of the ASCONF can use this
    same value in the ASCONF-ACK to find which request the response is
    for.  Note that the receiver MUST NOT change this 32-bit value.

    Address Parameter: TLV

    This field contains an IPv4 or IPv6 address parameter, as described
    in Section 3.3.2.1 of [RFC4960].

ASCONF chunk with Error Cause Indication Parameter (Unresolvable Address)
should be sent if the Delete IP Address is not part of the association.

  Endpoint A                           Endpoint B
  (ESTABLISHED)                        (ESTABLISHED)

  ASCONF        ----------------->
  (Delete IP Address)
                <-----------------      ASCONF-ACK
                                        (Unresolvable Address)

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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