Commit Graph

48 Commits

Author SHA1 Message Date
Mariusz Zaborski
1489776d43 iscsi: simplify the capsicumization
Approved by:	trasz
Differential Revision:	https://reviews.freebsd.org/D17962
2018-11-30 19:40:16 +00:00
Marcelo Araujo
8951f05525 Rework CTL frontend & backend options to use nv(3), allow creating multiple
ioctl frontend ports.

This revision introduces two changes to CTL:
- Changes the way options are passed to CTL_LUN_REQ and CTL_PORT_REQ ioctls.
  Removes ctl_be_arg structure and associated logic and replaces it with
  nv(3)-based logic for passing in and out arguments.
- Allows creating multiple ioctl frontend ports using either ctladm(8) or
  ctld(8).
  New frontend ports are represented by /dev/cam/ctl<pp>.<vp> nodes, eg /dev/cam/ctl5.3.
  Those device nodes respond only to CTL_IO ioctl.

New command-line options for ctladm:
# creates new ioctl frontend port with using free pp and vp=0
ctladm port -c
# creates new ioctl frontend port with pp=10 and vp=0
ctladm port -c -O pp=10
# creates new ioctl frontend port with pp=11 and vp=12
ctladm port -c -O pp=11 -O vp=12
# removes port with number 4 (it's a "targ_port" number, not pp number)
ctladm port -r -p 4

New syntax for ctl.conf:
target ... {
    port ioctl/<pp>
    ...
}

target ... {
    port ioctl/<pp>/<vp>
    ...

Note: Most of this work was made by jceel@, thank you.

Submitted by:	jceel
Reworked by:	myself
Reviewed by:	mav (earlier versions and recently during the rework)
Obtained from:  FreeNAS and TrueOS
Relnotes:	Yes
Sponsored by:	iXsystems Inc.
Differential Revision:	https://reviews.freebsd.org/D9299
2018-05-10 03:50:20 +00:00
Pedro F. Giffuni
1de7b4b805 various: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00
Enji Cooper
653e7d6396 Split iscsi(4) ctl frontend off of ctl(4) as cfiscsi(4)
The goal of this work is to remove the explicit dependency for ctl(4)
on iscsi(4), so end-users without iscsi(4) support in the kernel can
use ctl(4) for its other functions.

This allows those without iscsi(4) support built into the kernel to use
ctl(4) as a test mechanism. As a sidenote, this was possible around the
10.0-RELEASE period, but made impossible for end-users without iscsi(4)
between 10.0-RELEASE and 11.0-RELEASE.

Automatically load cfiscsi(4) from ctladm(8) and ctld(8) for backwards
compatibility with previously releases. The automatic loading feature is
compiled into the beforementioned tools if MK_ISCSI == yes when building
world.

Add a manpage for cfiscsi(4) and refer to it in ctl(4).

Differential Revision:	D10099
MFC after:	2 months
Relnotes:	yes
Reviewed by:	mav, trasz
Sponsored by:	Dell EMC Isilon
2017-03-30 04:56:27 +00:00
Enji Cooper
9118b1b092 ctld: sort #includes per style(9)
- Only include sys/types.h or sys/param.h, not both.
- Sort alphabetically.

MFC after:	3 days
Sponsored by:	Dell EMC Isilon
2017-03-27 18:59:49 +00:00
Marcelo Araujo
5116725078 Use nitems() from sys/param.h.
Reviewed by:	np
MFC after:	3 weeks.
Differential Revision:	https://reviews.freebsd.org/D9945
2017-03-11 04:01:35 +00:00
Navdeep Parhar
97b84d344d Make the iSCSI parameter negotiation more flexible.
Decouple the send and receive limits on the amount of data in a single
iSCSI PDU.  MaxRecvDataSegmentLength is declarative, not negotiated, and
is direction-specific so there is no reason for both ends to limit
themselves to the same min(initiator, target) value in both directions.

Allow iSCSI drivers to report their send, receive, first burst, and max
burst limits explicitly instead of using hardcoded values or trying to
derive all of them from the receive limit (which was the only limit
reported by the drivers prior to this change).

Display the send and receive limits separately in the userspace iSCSI
utilities.

Reviewed by:	jpaetzel@ (earlier version), trasz@
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7279
2016-08-25 05:22:53 +00:00
Edward Tomasz Napierala
4e5408f10c Report negotiated MaxBurstLength and FirstBurstLength in "iscsictl -v"
and "ctladm islist -v" outputs.

MFC after:	1 month
2016-06-05 08:48:37 +00:00
Edward Tomasz Napierala
05c3dfeedf Add missing error checks.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-11-14 16:18:22 +00:00
Edward Tomasz Napierala
c2ef20fdb7 Don't try to avoid calling free(3) with NULL argument.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-11-14 16:06:01 +00:00
Alexander Motin
398290f29a Introduce portal group options in ctl.conf.
While CTL has concept of port options, used at least for iSCSI ports now,
before this change it was impossible to set them manually.  There still
no user-configurable port options now, but I am planning to change that.
2015-11-09 18:33:36 +00:00
Alexander Motin
91be33dc78 Add to CTL initial support for CDROMs and removable devices.
Relnotes:	yes
2015-09-27 13:47:28 +00:00
Alexander Motin
9c887a4f86 Remove some duplicate, legacy, dead and questionable code. 2015-09-26 11:28:45 +00:00
Alexander Motin
e543b3a83f Make cltd ignore HA ports. 2015-09-21 10:27:30 +00:00
Alexander Motin
3933f7b112 Add ctl-lun config option for consistency in HA setups. 2015-09-15 13:37:48 +00:00
Alexander Motin
828524c137 When updating port, apply only change of LUN map, not whole. 2015-09-13 15:08:06 +00:00
Alexander Motin
a3977bea20 Allow LUN options modification via CTL_LUNREQ_MODIFY.
Not all changes take effect, but that is a different question.
2015-09-06 11:23:01 +00:00
Alexander Motin
c01a5fa910 Another addition to r287455. 2015-09-04 10:16:21 +00:00
Alexander Motin
2f444d157b Drop "internal" CTL frontend.
Its idea was to be a simple initiator and execute several commands from
kernel level, but FreeBSD never had consumer for that functionality,
while its implementation polluted many unrelated places..
2015-08-15 13:34:38 +00:00
Alexander Motin
0bb4b98984 Plug minor memory leak at r284765.
Reported by:	Coverity
CID:		1308401
MFC after:	3 days
2015-06-26 16:14:00 +00:00
Alexander Motin
d83595b2a8 Teach ctld about CTL's physical_port and virtual_port fields.
This allows ctld to work with isp(4) virtual ports, specifying them as
isp0/1, isp0/2, etc.  There are still problems on isp(4) layer with
disabling those ports after enabling, but hopefully they can be fixed.

MFC after:	3 days
Sponsored by:	iXsystems, Inc.
2015-06-24 15:13:27 +00:00
Alexander Motin
aadf439b22 If target name starts with "naa.", set it as WWNN for CTL port.
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
2015-03-04 14:12:38 +00:00
Edward Tomasz Napierala
a9d7821075 Move the "offload" clause from the target section to portal-group
section; it makes more sense there.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-02-28 12:02:32 +00:00
Alexander Motin
16fa28094c Add checks for malloc() failures.
Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
MFC after:	3 days
2015-02-25 10:07:39 +00:00
Alexander Motin
057abcb004 Teach ctld(8) to control non-iSCSI CTL ports.
This change introduces new target option "port", that assigns current target
to specified CTL port.  On config application ctld(8) will apply LUN mapping
according to target configuration to specified port and bring the port up.
On shutdown cltd(8) will remove the mapping and put the port down.

This change allows to configure both iSCSI and FibreChannel targets in the
same configuration file in alike way.

Kernel side support was added earlier at r278037.

MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	iXsystems, Inc.
2015-02-07 13:19:04 +00:00
Edward Tomasz Napierala
07b49a3eed Make it possible to set (via ctl.conf(5)) and query (via ctladm islist -v)
target iSCSI offload.  Add mechanism to query maximum receive data segment
size supported by chosen hardware offload module, and use it in ctld(8)
to determine the value to advertise to the other side.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-02-06 21:03:25 +00:00
Alexander Motin
92847ee1f3 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.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2015-02-06 17:43:13 +00:00
Alexander Motin
6b31e1302f Bring some more order into iSCSI portal group tags support.
While ctld(8) still does not allow multiple portal groups per target
to be configured, kernel should now be able to handle it.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2015-02-03 16:17:54 +00:00
Alexander Motin
920c6cbadc CTL LUN mapping rewrite.
Replace iSCSI-specific LUN mapping mechanism with new one, working for any
ports.  By default all ports are created without LUN mapping, exposing all
CTL LUNs as before.  But, if needed, LUN mapping can be manually set on
per-port basis via ctladm.  For its iSCSI ports ctld does it via ioctl(2).
The next step will be to teach ctld to work with FibreChannel ports also.

Respecting additional flexibility of the new mechanism, ctl.conf now allows
alternative syntax for LUN definition.  LUNs can now be defined in global
context, and then referenced from targets by unique name, as needed.  It
allows same LUN to be exposed several times via multiple targets.

While there, increase limit for LUNs per target in ctld from 256 to 1024.
Some initiators do not support LUNs above 255, but that is not our problem.

Discussed with:	trasz
MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	iXsystems, Inc.
2015-02-01 21:50:28 +00:00
Edward Tomasz Napierala
2bd282696a Whitespace fixes.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2014-10-22 09:17:17 +00:00
Alexander Motin
19720f4113 Make ctld start even if some LUNs are unable to open backing storage.
Such LUNs will be visible to initiators, but return "not ready" status
on media access commands.  If backing storage become available later,
`ctladm modify ...` or `service ctld reload` can trigger its reopen.
2014-10-10 19:41:09 +00:00
Edward Tomasz Napierala
b7a65e3936 Make the iSCSI stack use __FBSDID() properly.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2014-08-21 15:32:38 +00:00
Alexander Motin
a6f6f7a632 Fix ctld crash on startup if target alias is not set.
MFC after:	3 days
2014-07-17 11:38:37 +00:00
Alexander Motin
1380b77c12 Close race in r268291 between port destruction, delayed by sessions
teardown, and new port creation during `service ctld restart`.

Close it by returning iSCSI port internal state, that allows to identify
dying ports, which should not be counted as existing, from really alive.
2014-07-06 17:57:59 +00:00
Alexander Motin
6d81c129dd 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.
2014-07-05 21:18:33 +00:00
Alexander Motin
027e5269c9 Burry devid port method, which was a gross hack.
Instead make ports provide wanted port and target IDs, and LUNs provide
wanted LUN IDs.  After that core Device ID VPD code only had to link all
of them together and add relative port and port group numbers.

LUN ID for iSCSI LUNs no longer created by CTL, but by ctld, and passed
to CTL as "scsiname" LUN option.  This makes LUNs to report the same set
of IDs, independently from the port through which it is accessed, as
required by SCSI specifications.
2014-07-05 19:30:20 +00:00
Alexander Motin
917d38fb99 Create separate CTL port for every iSCSI target (and maybe portal group).
Having single port for all iSCSI connections makes problematic implementing
some more advanced SCSI functionality in CTL, that require proper ports
enumeration and identification.

This change extends CTL iSCSI API, making ctld daemon to control list of
iSCSI ports in CTL.  When new target is defined in config fine, ctld will
create respective port in CTL.  When target is removed -- port will be
also removed after all active commands through that port properly aborted.
This change require ctld to be rebuilt to match the kernel.

As a minor side effect, this allows to have iSCSI targets without LUNs.
While that may look odd and not very useful, that is not incorrect.
2014-07-05 18:15:00 +00:00
Alexander Motin
8ea4f2ef51 serial_num and device_id fields are not necessarily null-terminated.
Before this it was impossible to use all 16 bytes of serial number, and
client always got serial number NULL-terminated, that is not required.

MFC after:	2 weeks
2014-06-19 19:28:35 +00:00
Edward Tomasz Napierala
8eab95d646 Properly pass the initiator address when running in proxy mode.
Sponsored by:	The FreeBSD Foundation
2014-04-16 11:00:10 +00:00
Edward Tomasz Napierala
8cab2ed4cd Properly identify target portal when running in proxy mode. While here,
remove CTL_ISCSI_CLOSE, it wasn't used or implemented anyway.

Sponsored by:	The FreeBSD Foundation
2014-04-16 10:29:34 +00:00
Edward Tomasz Napierala
ba3a2d31c8 Make it possible for the iSCSI target side to operate in both normal
and ICL_KERNEL_PROXY mode, and fix some bit rot so the latter actually
works again.

Sponsored by:	The FreeBSD Foundation
2014-04-16 10:06:37 +00:00
Robert Watson
b881b8be1d Update most userspace consumers of capability.h to use capsicum.h instead.
auditdistd is not updated as I will make the change upstream and then do a
vendor import sometime in the next week or two.

MFC after:	3 weeks
2014-03-16 11:04:44 +00:00
Edward Tomasz Napierala
b3361aabc8 Improve error reporting.
Sponsored by:	The FreeBSD Foundation
2014-02-11 11:35:26 +00:00
Edward Tomasz Napierala
f7ae5bf8de Rename a variable, no functional changes.
Sponsored by:	The FreeBSD Foundation
2014-02-11 11:14:50 +00:00
Edward Tomasz Napierala
1af403658b Fix off-by-one.
Coverity CID:	1011375
Approved by:	re (glebius)
Sponsored by:	FreeBSD Foundation
2013-10-09 12:17:40 +00:00
Edward Tomasz Napierala
7843bd031a Fix several problems in the new iSCSI stack; this includes interoperability
fix for LIO (Linux target), removing possibility for the target to avoid mutual
CHAP by choosing to skip authentication altogether, and fixing truncated error
messages in iscsictl(8) output.  This also fixes several of the problems found
with Coverity.

Note that this change requires world rebuild.

Coverity CID:	1088038, 1087998, 1087990, 1088004, 1088044, 1088041, 1088040
Approved by:	re (blanket)
Sponsored by:	FreeBSD Foundation
2013-09-18 21:15:21 +00:00
Edward Tomasz Napierala
c76e8a9aa0 Make iscsictl(8) automatically try to load the iscsi module. While here,
improve module loading in iscsid(8) and ctld(8).

Approved by:	re (delphij)
2013-09-18 08:37:14 +00:00
Edward Tomasz Napierala
009ea47eb2 Bring in the new iSCSI target and initiator.
Reviewed by:	ken (parts)
Approved by:	re (delphij)
Sponsored by:	FreeBSD Foundation
2013-09-14 15:29:06 +00:00