Add protection code.

MFC after: 3 days
CID: 748858

MFH

Sponsored by: The FreeBSD Foundation

Address a warning reported by D5245 / PVS.

MFC after: 3 days

Merge ^/head r294961 through r295350.

MfH @r295202

Expect to see panics in routing code at least now.

MFH

Sponsored by: The FreeBSD Foundation

Don't allow a remote encapsulation port change during the
SCTP restart procedure.

MFC after: 3 days

Ignore peer addresses in a consistent way also when checking for
new addresses during restart. If this is not done, restart doesn't
work when the local socket is IPv4 only and the peer uses
IPv4 and

Ignore peer addresses in a consistent way also when checking for
new addresses during restart. If this is not done, restart doesn't
work when the local socket is IPv4 only and the peer uses
IPv4 and IPv6 addresses.

MFC after: 3 days.

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Mfh r292839

Don't implicitly terminate a user message when moving it to the
send_queue and the socket is closed. This results in strange
race conditions for the application.
While there, remove a stray character

Don't implicitly terminate a user message when moving it to the
send_queue and the socket is closed. This results in strange
race conditions for the application.
While there, remove a stray character.

MFC after: 3 days

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MFH @r292599

This includes the pluggable TCP framework and other chnages to the
netstack to track for VNET stability.

Security: The FreeBSD Foundation

Retire sctp_validate_no_locks().

This routine checks that there are no locks held for an inp,
without having any lock on the inp. This breaks if the inp
goes away when it is called. This happens on

Retire sctp_validate_no_locks().

This routine checks that there are no locks held for an inp,
without having any lock on the inp. This breaks if the inp
goes away when it is called. This happens on stress tests
on a RPi B+.

MFC after: 3 days

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Fix the allocation of outgoing streams:
* When processing a cookie, use the number of
streams announced in the INIT-ACK.
* When sending an INIT-ACK for an existing
association, use the value from

Fix the allocation of outgoing streams:
* When processing a cookie, use the number of
streams announced in the INIT-ACK.
* When sending an INIT-ACK for an existing
association, use the value from the association,
not from the end-point.

MFC after: 1 week

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Catch up with head.

Ensure that outgoing streams get reset when they run dry.

MFC after: 1 week

Catch up with head, mostly to merge r291665 with the changes in this branch.

Minor cleanup. No functional change.

MFC after: 1 week

Catch up with head.

Take also the send queue and sent queue into account when triggering
the sending of outgoing stream reset requests.

MFC after: 3 days

Catch up with head (r291075).

Merge from head

Sponsored by: Gandi.net

Merge from head

Use __func__ instead of __FUNCTION__.

This allows to compile the userland stack without errors using gcc5.
Thanks to saghul for makeing me aware and providing the patch.

MFC after: 1 week

Merge from head