Commit Graph

66 Commits

Author SHA1 Message Date
Poul-Henning Kamp
497c334767 Simplify the ioctl handling in GEOM.
This replaces the current ioctl processing with a direct call path
from geom_dev() where the ioctl arrives (from SPECFS) to any directly
connected GEOM class.

The inverse of the above is no longer supported.  This is the
situation were you have one or more intervening GEOM classes, for
instance a BSDlabel on top of a MBR or PC98.  If you want to issue
MBR or PC98 specific ioctls, you will need to issue them on a MBR
or PC98 providers.

This paves the way for inviting CD's, FD's and other special cases
inside GEOM.
2003-09-01 20:45:32 +00:00
David E. O'Brien
50b1faef38 Use __FBSDID().
Approved by:	phk
2003-06-11 06:49:16 +00:00
Poul-Henning Kamp
83d771de78 Simplify the GEOM OAM api: Drop the request type, and let everything
hinge on the "verb" parameter which the class gets to interpret as
it sees fit.

Move the entire request into the kernel and move changed parameters
back when done.
2003-06-01 13:47:51 +00:00
Poul-Henning Kamp
58223589d5 Use bcmp() to compare hash strings. 2003-06-01 09:18:49 +00:00
Poul-Henning Kamp
c543626797 Remove unused variables.
Remove #ifdef notyet which will never become.

Found by:       FlexeLint
2003-05-31 19:30:52 +00:00
Poul-Henning Kamp
f075585f67 Remove the G_CLASS_INITIALIZER, we do not need it anymore. 2003-05-31 16:59:27 +00:00
Poul-Henning Kamp
c9e629297a Fix the WARNING for wrong rawoffset, I tested incompatible units.
Approved by:	re/jhb
2003-05-06 19:36:13 +00:00
Poul-Henning Kamp
3fd530f7ec Don't warn if the rawoffset is zero, that is actually the best value it
could have.
2003-05-05 08:30:59 +00:00
Poul-Henning Kamp
b9275c8fc6 Turn the check that rawoffset == mbroffset into a warning instead. 2003-05-05 06:46:49 +00:00
Poul-Henning Kamp
b624374de8 Only accept a rawoffset if it is identical to the mbroffset. 2003-05-04 19:26:31 +00:00
Poul-Henning Kamp
7f9e81b703 Add a way to read the current mbroffset from a BSD label class. 2003-05-04 19:25:48 +00:00
Poul-Henning Kamp
ce40bcd0d1 Remove debugging printfs which should not have been committed. 2003-05-04 18:48:25 +00:00
Poul-Henning Kamp
a767c3daa3 Add a OAM interface for changing the label and writing the boot code. 2003-05-03 08:01:34 +00:00
Poul-Henning Kamp
56dde750d5 Make bsd_disklabel_le_enc calculate the checksum and fill it in.
(If there is a legitimate need to correctly encode and pack a
disklabel with an invalid checksum custom tools can be built for
that.)

Make bsd_disklabel_le_dec() validate the magics, number of partitions
(against a new parameter) and the checksum.

Vastly simplify the logic of the GEOM::BSD class implementation:

Let g_bsd_modify() always take a byte-stream label.

This simplifies all users, except the ioctl's which now have to
convert to a byte-stream first.  Their loss.

g_bsd_modify() is called with topology held now, and it returns
with it held.

Always update the md5sum in g_bsd_modify(), otherwise the check
is no use after the first modification of the label.  Make the
MD5 over the bytestream version of the label.

Move the rawoffset hack to g_bsd_modify() and remove all the
inram/ondisk conversions.

Don't configure hotspots in g_bsd_modify(), do it in taste instead,
we do not support moving the label to a different location on the
fly anyway.

This passes all current regression tests.
2003-05-02 22:46:13 +00:00
Poul-Henning Kamp
28ce9efcef Use g_slice_spoiled() rather than g_std_spoiled() 2003-05-02 06:33:59 +00:00
Poul-Henning Kamp
8cd1535a24 Rename g_call_me() to g_post_event(), and give it a flag
argument to determine if we can M_WAITOK in malloc.
2003-04-23 20:46:12 +00:00
Poul-Henning Kamp
7220a9e779 Make more of the "hotspot" stuff generic:
Give the class a way to specify the necessary action for read/delete/write:
ALLOW, DENY, START or CALL.

Update geom_bsd to use this.
2003-04-19 10:14:39 +00:00
Poul-Henning Kamp
c72e7314c2 These two files fell off during my previous commit: put the encoding
decoding functions for struct disklabel in a separate .c file.
2003-04-17 08:41:08 +00:00
Poul-Henning Kamp
3924ad705e Time has run from the "run GEOM in userland" harness, and the new regression
test is built to test GEOM as running in the kernel.

This commit is basically "unifdef -D_KERNEL" to remove the mainly #include
related code to support the userland-harness.
2003-04-13 09:02:06 +00:00
Poul-Henning Kamp
0d3e96e39c Retire the "frontstuff" record keeping, it was no match for the
in-band meta-data of BSD labels and a more complex solution will be needed.
2003-04-12 08:41:26 +00:00
Poul-Henning Kamp
4eba52a2d2 Remove all references to BIO_SETATTR. We will not be using it. 2003-04-03 19:19:36 +00:00
Poul-Henning Kamp
d8cb8a5137 Use <sys/endian.h> instead of geom_enc.c for endianess-agnostification. 2003-04-03 11:36:53 +00:00
Poul-Henning Kamp
316aed030e Add handling for cancelled events in the g_call_me() methods. 2003-04-02 21:10:04 +00:00
Poul-Henning Kamp
afcbcfaed0 Change events to have an array of "void *" references, and give the
event posting functions varargs to fill these.

Attribute g_call_me() to appropriate g_geom's where necessary.

Add a flag argument to g_call_me() methods which will be used to signal
cancellation of events in the future.

This commit should be a no-op.
2003-04-02 20:41:18 +00:00
Poul-Henning Kamp
c138fec0b5 Premptively change initializations of struct g_class to use C99
sparse struct initializations before we extend the struct with
new OAM related member functions.
2003-03-24 19:30:15 +00:00
Poul-Henning Kamp
b4b138c27f Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
Poul-Henning Kamp
e60dce6b42 Fix yet another fallout of our M_* song and dance. 2003-03-10 23:34:12 +00:00
Poul-Henning Kamp
c516a05a66 Mark some args unused so this compiles in userland. 2003-01-28 09:48:09 +00:00
Poul-Henning Kamp
7253da9c05 Implement DIOCBSDBB ioctl which overwrites first BBSIZE bytes of BSD
labeled disk.

This is complicated by the fact that BBSIZE is greater than the
PAGE_SIZE limit ioctl inflicts on arguments which are automatically
copied in.

As long as we don't need access to userland memory (copyin/out) we
can deal with the ioctl using g_callme() which executes it from the
GEOM event thread.

Once we need copyin/out, we need to return the bio with EDIRIOCTL
in order to make geom_dev call us back in the original process context
where copyin will work.

Unfortunately, that results in us getting called with Giant, so
we have to DROP_GIANT/PICKUP_GIANT around the code where we diddle
GEOMs internals.

Sometimes you just can't win...

... But it does make geom_bsd.c an almost complete example of the
GEOM beastiarium.
2003-01-26 21:54:36 +00:00
Poul-Henning Kamp
bf1dae82da Fix typo. 2003-01-13 08:44:03 +00:00
John Baldwin
3a8790a13b Output the fstype of each partition in a disklabel in the configuration
text similar to the way that the MBR module dumps its slice types.
2003-01-10 19:44:14 +00:00
Poul-Henning Kamp
51a5c572a6 BSD disklabels expose the controling label though the 'c' partition, and
some trick is necessary to prevent further BSD geoms from attaching to
that.  Our old trick was to make sure we don't attach to a geom from
the "BSD" class, but this doesn't work if an intermediary geom obscures
this fact.  Instead, calculate the MD5 checksum of the label we target
and ask if anybody below us loves that label.  If they do we don't.

Coded by:       gordon.
2003-01-06 20:10:41 +00:00
Poul-Henning Kamp
0f9d3dba37 Constification and some s/int/u_int/ changes. 2002-12-16 22:33:27 +00:00
Poul-Henning Kamp
821a4d01ea Don't interpret the hotspots relative to all slices on a slicer, but
relative to the parent device.
2002-12-13 21:31:13 +00:00
Poul-Henning Kamp
00e11500e2 Use the hotspot code to prevent people from overwriting their disklabel
with stuff which would ruin the day for any open parititons.

Approved by:	re
2002-12-02 20:23:54 +00:00
Poul-Henning Kamp
749cefac1b Always recalculate the SRM checksum if the label is at 64 bytes offset.
Tested by:	jhb
2002-11-08 15:31:34 +00:00
Yoshihiro Takahashi
962cf6f7bb Fix to support pc98.
It is mostly merged from MBR specific part.

Reviewed by:	phk
2002-11-07 16:42:37 +00:00
Poul-Henning Kamp
8c847e9020 Add more compatibility junk. 2002-10-28 07:50:47 +00:00
Poul-Henning Kamp
3f12caa180 Now that the sectorsize and mediasize are properties of the provider,
don't take the detour over the I/O path to discover them using getattr(),
we can just pick them out directly.

Do note though, that for now they are only valid after the first open
of the underlying disk device due compatibility with the old disk_create()
API.  This will change in the future so they will always be valid.

Sponsored by:   DARPA & NAI Labs.
2002-10-20 20:28:24 +00:00
Poul-Henning Kamp
48444d6262 Make the sectorsize a property of providers so we can include it in the XML
output.

Sponsored by:	DARPA & NAI Labs
2002-10-20 19:18:07 +00:00
Poul-Henning Kamp
96b2c14b41 Style(9) and english(9) fixes.
Submitted by:	schweikh
2002-10-20 08:43:56 +00:00
Poul-Henning Kamp
5f79a2e33a Fix argument order mistake when decoding disklabels from on-disk format.
Detected by:	jhay
Sponsored by:	DARPA & NAI Labs.
2002-10-05 18:52:06 +00:00
Poul-Henning Kamp
3a24c28f37 Don the asbestos underwear and add the code which lets DIOCWDINFO
write modified disklabels back to disk.

Sponsored by:	DARPA & NAI Labs.
2002-09-30 08:59:59 +00:00
Poul-Henning Kamp
72840432e0 Retire g_io_fail() and let g_io_deliver() take an error argument instead.
Sponsored by:	DARPA & NAI Labs.
2002-09-30 08:54:46 +00:00
Poul-Henning Kamp
3d3816e633 Extensively rework the geom_bsd method, put a lot of comments in, betting
that this will make people use this for their future copy&paste operations.

Rework the detection of raw-disk offsets in disklabels.  This actually
unearthed a number of bugs in the (now) previous version.

Also accept labels which don't have a magic RAW_PART, provided they don't
confuse us too much.

Change the order of our sanity-checks on labels found on disks to be more
robust.

Check against MAXPARTITIONS in our sanity-check and reject disklabels
we cannot cope with.

Create new g_bsd_modify() function to implment disklabel modifying
ioctls.

Implement DIOCSDINFO and DIOCWDINFO with the provision that the latter
still not writes your change back to disk.  I didn't have the nerves
for that yet.

In the start routine, use g_call_me() for complex ioctls to prevent
sleeping.

Sponsored by:   DARPA & NAI Labs.
2002-09-27 21:54:37 +00:00
Poul-Henning Kamp
5a6baf5457 Add the new g_slice_config() call, which can add/delete/change a slice,
with support for trying, doing and forcing.

This will eventually replace g_slice_addslice() which gets changed from
grabbing topology to requing it in this commit as well.

Sponsored by:   DARPA & NAI Labs.
2002-09-27 21:37:11 +00:00
Poul-Henning Kamp
8ac8480b86 Correctly en/decode MAXPARTITIONS partitions.
Sponsored by:	DARPA & NAI Labs.
2002-09-27 21:19:47 +00:00
Poul-Henning Kamp
c51f3753df "Fix" printf format issues by using %j
Sponsored by:	DARPA & NAI Labs.
2002-09-13 11:41:25 +00:00
Poul-Henning Kamp
4fbd12689a Remove "magicspace". It looks good on paper, it doesn't work in practice.
Sponsored by: DARPA & NAI Labs.
2002-09-06 08:50:28 +00:00
Poul-Henning Kamp
503abe4540 Improve some on the naming.
Submitted by:	iedowse
2002-06-09 10:57:34 +00:00