- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC r287766: Add negotiation of iSCSIProtocolLevel to 2 (RFC7144).

We may need to pass negotiated value to kernel level, but so far it is
not necessary, since it does not use any new features without request.

MFC r281532 (by delphij): Eliminate unused headers.

MFC r286462: Refactor early stages of security negotiation.

MFC r286456: Remove some code duplication.

MFC r282086:

Make setproctitle(3) work in Capsicum capability mode. This makes
ctld(8) child processes to indicate initiator address and name in
their titles, similar to what iscsid(8) child processes do.

PR: 181352
Sponsored by: The FreeBSD Foundation

MFC r278322: Add support for multiple portal groups per target.

This change allows multiple "portal-group" options to be specified per
target. Each of them may include new optional auth-group name parameter
to override per-target auth parameters for specific portal group.

Kernel side support was added earlier at r278161.

Sponsored by: iXsystems, Inc.

MFC r275864: Make sequence numbers checks more strict.

While we don't support MCS, hole in received sequence numbers may mean
only PDU loss. While we don't support lost PDU recovery, terminate the
connection to avoid stuck commands.

While there, improve handling of sequence numbers wrap after 2^32 PDUs.

MFC r275925: Slightly polish iSCSI parameters negotiation.

MFC r274308:

Add support for sending redirections to iSCSI target.

MFC r274309:

Fix several nits in redirection handling - don't use wrong CSG,
and avoid use-after-free.

Sponsored by: The FreeBSD Foundation

MFC r273813:

Add discovery-filter. This makes it possible to restrict which targets
are returned during discovery based on initiator portal, name, and CHAP
credentials.

MFC r273584:

Make the initiator-name and initiator-portal checks a little nicer.

Sponsored by: The FreeBSD Foundation

MFC 273583:

Tidy up the login code; no functional changes.

Sponsored by: The FreeBSD Foundation

MFC r273464:

Whitespace fixes.

Sponsored by: The FreeBSD Foundation

MFC r271320:

Use keys_add_int() where appropriate. No functional changes.

Sponsored by: The FreeBSD Foundation

MFC r273459:

Untangle iSCSI authentication code by splitting off the CHAP
implementation.

Sponsored by: The FreeBSD Foundation

MFC r271319:

Fix ctld(8) to not forget to send TargetPortalGroupTag and TargetAlias
when the initiator skips security negotiation. This fixes interoperability
with Xtend SAN initiator.

PR: 193021
Approved by: re (marius)
Sponsored by: The FreeBSD Foundation

MFC r271157:

Fix typo.

Approved by: re (marius)
Sponsored by: The FreeBSD Foundation

MFC r270279:

Make the iSCSI stack use __FBSDID() properly.

Sponsored by: The FreeBSD Foundation

MFC r269183, r269191:
Add netmasks support to initiator-portal option.

MFC r268302:
Pass through iSCSI session ISID from LOGIN request to the CTL frontend.

ISID is an important part of initiator transport ID for iSCSI. It is not
used now, but should be to properly implement persistent reservation.

MFC r264532:

Use proper terminology in debug messages.

Sponsored by: The FreeBSD Foundation

MFC r263356:

Make the error message more clear.

Sponsored by: The FreeBSD Foundation

MFC r261752:

Empty data segment during Login Phase is rather unlikely, but it's
not, by itself, a protocol error. This fixes interoperability with
OpenBSD initiator.

Sponsored by: The FreeBSD Foundation

MFC r261763:

Use new auth-type "deny" instead of using "chap" with no chap entries;
it's cleaner this way, and gives better feedback to the user.

Sponsored by: The FreeBSD Foundation

MFC r261757:

Rename a variable, no functional changes.

Sponsored by: The FreeBSD Foundation

MFC r261754:

Implement initiator-name and initiator-portal restrictions.

Sponsored by: The FreeBSD Foundation

MFC r259182:

Fix handling for empty auth-groups. Without it, ctld child process
would either exit on assertion, or, if assertions are not enabled,
fail to authenticate the target.

Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Plug memory leaks.

Coverity CID: 1087993, 1087992
Approved by: re (marius)
Sponsored by: FreeBSD Foundation

Bring in the new iSCSI target and initiator.

Reviewed by: ken (parts)
Approved by: re (delphij)
Sponsored by: FreeBSD Foundation