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2d57c5856c
Add all the boilerplate for handling this implement InvalidMandatoryParameter and UnrecognizedChunkType
69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
package sctp
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import (
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"github.com/pkg/errors"
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)
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/*
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Abort represents an SCTP Chunk of type ABORT
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The ABORT chunk is sent to the peer of an association to close the
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association. The ABORT chunk may contain Cause Parameters to inform
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the receiver about the reason of the abort. DATA chunks MUST NOT be
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bundled with ABORT. Control chunks (except for INIT, INIT ACK, and
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SHUTDOWN COMPLETE) MAY be bundled with an ABORT, but they MUST be
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placed before the ABORT in the SCTP packet or they will be ignored by
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the receiver.
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Type = 6 |Reserved |T| Length |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| zero or more Error Causes |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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type Abort struct {
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ChunkHeader
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ErrorCauses []ErrorCause
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}
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// Unmarshal populates a Abort Chunk from a byte slice
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func (a *Abort) Unmarshal(raw []byte) error {
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if err := a.ChunkHeader.Unmarshal(raw); err != nil {
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return err
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}
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if a.typ != ABORT {
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return errors.Errorf("ChunkType is not of type ABORT, actually is %s", a.typ.String())
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}
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offset := chunkHeaderSize
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for {
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if len(raw)-offset < 4 {
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break
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}
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e, err := BuildErrorCause(raw[offset:])
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if err != nil {
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return errors.Wrap(err, "Failed build Abort Chunk")
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}
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offset += int(e.Length())
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a.ErrorCauses = append(a.ErrorCauses, e)
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}
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return nil
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}
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// Marshal generates raw data from a Abort struct
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func (a *Abort) Marshal() ([]byte, error) {
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return nil, errors.Errorf("Unimplemented")
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}
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// Check asserts the validity of this structs values
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func (a *Abort) Check() (abort bool, err error) {
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return false, nil
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}
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