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.
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.
Fix issues in config parser relating to lun serial numbers.
Without this fix some serial numbers needed to be quoted
to avoid the config parser bailing out.
Submitted by: delphij
Sponsored by: iXsystems
Rework the way we enable CTL iSCSI port. Previously conf_apply()
needed it to be already enabled, because listening in proxy mode
requires it; however, it's conf_apply() that opens pidfiles,
so it resulted in port being enabled before pidfile was opened.
This was not so bad, but it was also disabled when pidfile couldn't
be opened due to ctld already running; this means that starting
second ctld instance screwed up the first.
Sponsored by: The FreeBSD Foundation
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
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
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
The log_whatever() routines don't accept NULL for format strings,
so mark them as __printflike instead of__printf0like.
Sponsored by: The FreeBSD Foundation
So, it turns out SIGCHLD is discarded by default, so we have to set up
a dummy handler to make it interrupt an ioctl(2) or select(2).
This makes those short-lived ctld(8) zombies disappear.
Sponsored by: The FreeBSD Foundation
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
Use "default" as default discovery-auth-group, instead of "no-access".
It doesn't change visible behaviour, as previously auth-group "default"
wasn't redefinable, so by default access was always denied.
Sponsored by: The FreeBSD Foundation
Add a new auth-group "default", defaulting to deny, and make it possible
to redefine it. From now on, assigning auth-group to a target is no longer
mandatory.
Sponsored by: The FreeBSD Foundation
Daemonize after applying configuration, not before, so that
any problems - including "daemon already running" - are visible
on the terminal and not just in logs.
Sponsored by: The FreeBSD Foundation
Improve check for duplicated paths. It shows the warning twice for every
path (once for each duplicate found), but it should do for now.
Sponsored by: The FreeBSD Foundation
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
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
