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For Linux the following tables are based on [sctp.h](https://github.com/sctp/lksctp-tools/blob/master/src/include/netinet/sctp.h).
|CMSG Name | API Spec | Protocol Spec | packetdrill | Linux | FreeBSD |
|:----------------|:-----------------------------------------------------------:|:------------------------------------------------:|:-----------:|:-----------:|:---------:|
|`SCTP_INIT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.1) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_SNDRCV` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.2) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_EXTRCV` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.3) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_SNDINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.4) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_RCVINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.5) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_NXTINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.6) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_PRINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.7) | [RFC3758](https://tools.ietf.org/html/rfc3758) | supported | unsupported | supported |
|`SCTP_AUTHINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.8) | [RFC4895](https://tools.ietf.org/html/rfc4895) | supported | unsupported | supported |
|`SCTP_DSTADDRV4` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.9) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_DSTADDRV6` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-5.3.10) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
| Type | API Spec | Protocol Spec | packetdrill | Linux | FreeBSD |
|:----------------------------------|:-------------------------------------------------------------:|:----------------------------------------------:|:-----------:|:-----------------:|:-----------:|
|`SCTP_ASSOC_CHANGE` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.1) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_PEER_ADDR_CHANGE` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.2) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_REMOTE_ERROR` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.3) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_SEND_FAILED` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.4) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_SHUTDOWN_EVENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.5) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_ADAPTATION_INDICATION` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.6) | [RFC5061](https://tools.ietf.org/html/rfc5061) | supported | supported | supported |
|`SCTP_PARTIAL_DELIVERY_EVENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.7) | [RFC3758](https://tools.ietf.org/html/rfc3758) | supported | supported (Note 1)| supported |
|`SCTP_AUTHENTICATION_EVENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.8) | [RFC4895](https://tools.ietf.org/html/rfc4895) | supported | supported | supported |
|`SCTP_SENDER_DRY_EVENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.9) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_NOTIFICATIONS_STOPPED_EVENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.10) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | unsupported |
|`SCTP_SEND_FAILED_EVENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-6.1.10) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_STREAM_RESET_EVENT` | [RFC6525](https://tools.ietf.org/html/rfc6525#section-6.1.1) | [RFC6525](https://tools.ietf.org/html/rfc6525) | supported | unsupported | supported |
|`SCTP_ASSOC_RESET_EVENT` | [RFC6525](https://tools.ietf.org/html/rfc6525#section-6.1.2) | [RFC6525](https://tools.ietf.org/html/rfc6525) | supported | unsupported | supported |
|`SCTP_STREAM_CHANGE_EVENT` | [RFC6525](https://tools.ietf.org/html/rfc6525#section-6.1.3) | [RFC6525](https://tools.ietf.org/html/rfc6525) | supported | unsupported | supported |
|Name | API Spec | Protocol Spec | packetdrill | Linux | FreeBSD |
|:-----------------------------|:-------------------------------------------------------------:|:----------------------------------------------:|:-----------:|:-------------------:|:---------:|
|`SCTP_RTOINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.1) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_ASSOCINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.2) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_INITMSG` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.3) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_NODELAY` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.5) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_AUTOCLOSE` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.8) | [RFC4960](https://tools.ietf.org/html/rfc4960) | unsupported | supported | supported |
|`SCTP_PRIMARY_ADDR` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.9) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | supported | supported |
|`SCTP_ADAPTATION_LAYER` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.10) | [RFC5061](https://tools.ietf.org/html/rfc5061) | supported | supported | supported |
|`SCTP_DISABLE_FRAGMENTS` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.11) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | supported | supported |
|`SCTP_PEER_ADDR_PARAMS` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.12) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | old structure | supported |
|`SCTP_DEFAULT_SEND_PARAM` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.13) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | supported | supported |
|`SCTP_EVENTS` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.14) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_I_WANT_MAPPED_V4_ADDR` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.15) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | supported | supported |
|`SCTP_MAXSEG` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.16) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | Check structure | supported |
|`SCTP_HMAC_IDENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.17) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | supported | supported |
|`SCTP_AUTH_ACTIVE_KEY` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.18) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | supported | supported |
|`SCTP_DELAYED_SACK` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.19) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_FRAGMENT_INTERLEAVE` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.20) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_PARTIAL_DELIVERY_POINT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.21) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | supported | supported |
|`SCTP_USE_EXT_RCVINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.22) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | unsupported | supported |
|`SCTP_AUTO_ASCONF` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.23) | [RFC5061](https://tools.ietf.org/html/rfc5061) | unsupported | unsupported | supported |
|`SCTP_MAX_BURST` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.24) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | Check structure | supported |
|`SCTP_CONTEXT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.25) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | supported | supported |
|`SCTP_EXPLICIT_EOR` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.26) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | unsupported | supported |
|`SCTP_REUSE_PORT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.27) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | unsupported | supported |
|`SCTP_EVENT` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.28) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_RECVRCVINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.29) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | unsupported | supported |
|`SCTP_RECVNXTINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.30) | [RFC4960](https://tools.ietf.org/html/rfc4960) | TBD | unsupported | supported |
|`SCTP_DEFAULT_SNDINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.31) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`SCTP_DEFAULT_PRINFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.1.32) | [RFC3758](https://tools.ietf.org/html/rfc3758) | unsupported | unsupported | supported |
|`SCTP_STATUS` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.2.1) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_GET_PEER_ADDR_INFO` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.2.2) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`SCTP_PEER_AUTH_CHUNKS` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.2.3) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | supported | supported |
|`SCTP_LOCAL_AUTH_CHUNKS` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.2.4) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | supported | supported |
|`SCTP_GET_ASSOC_NUMBER` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.2.5) | [RFC4960](https://tools.ietf.org/html/rfc4960) | unsupported | supported | supported |
|`SCTP_GET_ASSOC_ID_LIST` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.2.6) | [RFC4960](https://tools.ietf.org/html/rfc4960) | unsupported | unsupported | supported |
|`SCTP_SET_PEER_PRIMARY_ADDR` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.3.1) | [RFC5061](https://tools.ietf.org/html/rfc5061) | unsupported | supported | supported |
|`SCTP_AUTH_CHUNK` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.3.2) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | supported | supported |
|`SCTP_AUTH_KEY` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.3.3) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | supported | supported |
|`SCTP_AUTH_DEACTIVATE_KEY` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.3.4) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | unsupported | supported |
|`SCTP_AUTH_DELETE_KEY` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-8.3.5) | [RFC4895](https://tools.ietf.org/html/rfc4895) | unsupported | supported | supported |
|`SCTP_ENABLE_STREAM_RESET` | [RFC6525](https://tools.ietf.org/html/rfc6525#page-28) | [RFC6525](https://tools.ietf.org/html/rfc6525) | supported | unsupported | supported |
|`SCTP_RESET_STREAMS` | [RFC6525](https://tools.ietf.org/html/rfc6525#page-29) | [RFC6525](https://tools.ietf.org/html/rfc6525) | supported | unsupported | supported |
|`SCTP_RESET_ASSOC` | [RFC6525](https://tools.ietf.org/html/rfc6525#section-6.3.2) | [RFC6525](https://tools.ietf.org/html/rfc6525) | supported | unsupported | supported |
|`SCTP_ADD_STREAMS` | [RFC6525](https://tools.ietf.org/html/rfc6525#page-30) | [RFC6525](https://tools.ietf.org/html/rfc6525) | supported | unsupported | supported |
|Name | API Spec | Protocol Spec | packetdrill | Linux | FreeBSD |
|:-------------------|:-----------------------------------------------------------:|:----------------------------------------------:|:-----------:|:-----------:|:---------:|
|`sctp_bindx()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.1) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`sctp_peeloff()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.2) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`sctp_getpaddrs()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.3) | [RFC4960](https://tools.ietf.org/html/rfc4960) | unsupported | supported | supported |
|`sctp_freepaddrs()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.4) | [RFC4960](https://tools.ietf.org/html/rfc4960) | unsupported | supported | supported |
|`sctp_getladdrs()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.5) | [RFC4960](https://tools.ietf.org/html/rfc4960) | unsupported | supported | supported |
|`sctp_freeladdrs()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.6) | [RFC4960](https://tools.ietf.org/html/rfc4960) | unsupported | supported | supported |
|`sctp_sendmsg()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.7) | [RFC5061](https://tools.ietf.org/html/rfc5061) | supported | supported | supported |
|`sctp_recvmsg()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.8) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`sctp_connectx()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.9) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`sctp_send()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.10) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | supported | supported |
|`sctp_sendx()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.11) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`sctp_sendv()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.12) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
|`sctp_recvv()` | [RFC6458](https://tools.ietf.org/html/rfc6458#section-9.13) | [RFC4960](https://tools.ietf.org/html/rfc4960) | supported | unsupported | supported |
1. Linux does not support the `pdapi_stream` and `pdapi_seq` fields.