Commit Graph

32 Commits

Author SHA1 Message Date
bde
325338fe3d `struct linker_set execsw_set' was declared as const and pointers in it
were declared as non-const.  This is backwards (_lkm_exec() changes the
pointers but all the target `struct execsw's are const).  Fixed this
and poisoned related declarations to match and removed the bogus casts
that hid the bug.
1996-09-03 22:52:27 +00:00
dyson
428f960220 Change the *evil* allocation of memory from kmem_map to the kernel_map.
This will mess things up especially recently.
1996-05-24 01:39:50 +00:00
bde
f92cdcae99 Removed unnecessary #includes from <sys/imgact.h> so that it is
self-sufficient and added explicit #includes where required.
1996-05-01 02:43:13 +00:00
scrappy
85dc41d2a0 Switched from using devfs_add_devsw() to devfs_add_devswf()
Reviewed by:	julian@freebsd.org
1996-03-28 14:31:42 +00:00
bde
9041dff38e Fixed permissions of /devfs/lkm. 1996-03-27 19:42:14 +00:00
bde
ae6311cfe0 Removed unused function lkmenodev(). 1995-12-16 00:01:40 +00:00
julian
d905b350fe devsw tables are now arrays of POINTERS to struct [cb]devsw
seems to work hre just fine though  I can't check every file
that changed due to limmited h/w, however I've checked enught to be petty
happy withe hte code..

WARNING... struct lkm[mumble] has changed
so it might be an idea to recompile any lkm related programs
1995-12-13 15:13:57 +00:00
phk
a69d1dfbcb Julian forgot to make the *devsw structures static. 1995-12-08 23:23:00 +00:00
julian
1900eea896 Pass 3 of the great devsw changes
most devsw referenced functions are now static, as they are
in the same file as their devsw structure. I've also added DEVFS
support for nearly every device in the system, however
many of the devices have 'incorrect' names under DEVFS
because I couldn't quickly work out the correct naming conventions.
(but devfs won't be coming on line for a month or so anyhow so that doesn't
matter)

If you "OWN" a device which would normally have an entry in /dev
then search for the devfs_add_devsw() entries and munge to make them right..
check out similar devices to see what I might have done in them in you
can't see what's going on..
for a laugh compare conf.c conf.h defore and after... :)
I have not doen DEVFS entries for any DISKSLICE devices yet as that will be
a much more complicated job.. (pass 5 :)

pass 4 will be to make the devsw tables of type (cdevsw * )
rather than (cdevsw)
seems to work here..
complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
dg
c30f46c534 Untangled the vm.h include file spaghetti. 1995-12-07 12:48:31 +00:00
wollman
14b76de283 Disallow LKM manipulations when in seure mode.
Noticed by: bde
1995-11-29 17:45:59 +00:00
julian
198d88e0ae If you're going to mechanically replicate something in 50 files
it's best to not have a (compiles cleanly) typo in it! (sigh)
1995-11-29 14:41:20 +00:00
julian
f2f63c6ece OK, that's it..
That's EVERY SINGLE driver that has an entry in conf.c..
my next trick will be to define cdevsw[] and bdevsw[]
as empty arrays and remove all those DAMNED defines as well..

Each of these drivers has a SYSINIT linker set entry
that comes in very early.. and asks teh driver to add it's own
entry to the two devsw[] tables.

some slight reworking of the commits from yesterday (added the SYSINIT
stuff and some usually wrong but token DEVFS entries to all these
devices.

BTW does anyone know where the 'ata' entries in conf.c actually reside?
seems we don't actually have a 'ataopen() etc...

If you want to add a new device in conf.c
please  make sure I know
so I can keep it up to date too..

as before, this is all dependent on #if defined(JREMOD)
(and #ifdef DEVFS in parts)
1995-11-29 10:49:16 +00:00
phk
d8a08a76c9 Close the "unused" warning for things in linker-sets.
This will also allow us to catch typos in the setname by running a
nm through a grep.
1995-11-20 12:08:08 +00:00
bde
d892c3c42b Introduced lkm_nullcmd(), which will be used instead of nosys() in
some places to fix type mismatches.

Added prototypes and bogus casts.
1995-11-09 09:43:32 +00:00
bde
08b652fb65 Replaced bogus macros for dummy devswitch entries by functions.
These functions went away:

	enosys (hasn't been used for some time)
	enxio
	enodev
	enoioctl (was used only once, actually for a vop)

if_tun.c:
Continued cleaning up...

conf.h:
Probably fixed the type of d_reset_t.  It is hard to tell the correct
type because there are no non-dummy device reset functions.

Removed last vestige of ambiguous sleep message strings.
1995-11-06 00:36:19 +00:00
julian
ad186c6e98 add the file kern_conf.c so it can be compiled in when needed
for testing.. (for cdevsw_add and bdevsw_add)

make the lkm code use the new generic devsw add routines (if so required)
1995-10-04 03:42:39 +00:00
bde
b25431cbea Fix benign type mismatches in devsw functions. 82 out of 299 devsw
functions were wrong.
1995-09-08 11:09:15 +00:00
bde
76258d109c Call nosys() from lkmnosys() with the correct number and type of args
instead of with none.  The first (struct proc *) arg is used if lkmnosys()
if is actually called.

Implement lkmnosys() with the correct number and type of args so that
the first of them can be used and the others won't need to be fixed
lated.
1995-08-25 20:03:02 +00:00
rgrimes
c86f0c7a71 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
wpaul
f8bb0b05f3 Undo the stupidity I inflicted on these files and replace it with
some (hopefully) less offensive stupidity:

If we detect that a user has loaded a module that fails to initialize
itself correctly, panic. There really isn't a safe way to recover from
something like this; we can't know that the module is bad until after
the entry point is called, by which time it's too late to do anything
about it.
1995-04-20 05:08:53 +00:00
wpaul
20817a2ce3 Couple of small cosmetic changes:
- Add $Id$ string.
- Fix comment ("we might *not* be able to unload the
module afterwards without panicking...")
- Get rid of variable 'j' that I used in name checking
for(;;) loop and use 'i' instead (I thought there'd be
a problem with this, but there isn't).
1995-04-18 14:10:21 +00:00
wpaul
09db792626 Fix module handling to stop oddball modules (if_ppp_mod, if_sl_mod,
if_tun_mod, etc...) from crashing the system. These modules are useful,
but because they don't yet have proper load()/unload() functions,
they can lead to panics: if, for example, you load the if_ppp module,
any user can panic the system by running modstat.

You can also hang the system outright if you try to unload the PPP
module too.

Changes are as follows:

- Save the name passed to us during the RESERVE stage for name matching
(we can't load if_ppp_mod twice: we've have two ppp0's and two ppp1's,
which is beyond strange). This makes the lkmexists() cheks somewhat
redundant, but there's no way around it that I can see.

- If we call the module entry point and find that we have no lkm_any
structure in our 'private' section, create a fake one. This keeps
modstat happy. We mark such modules as LM_UNKNOWN.

- Don't allow LM_UNLOAD modules to be unloaded: it just ain't
possible. (Unless someone wants to write a pppunattach() function. :( )

- In lkmunreserve(), mark private.lkm_any as NULL so we don't get
confused later. I think this is bogus, but I can't prove it.

XXX: the name matching used to keep the user from loading two
instances of the same module can easily be defeated simply by
changing the module name or, in the case of the oddball modules,
simply by renaming the module files. I haven't found a nice simple
way to tell one module from another.
1995-04-18 02:29:26 +00:00
bde
289f11acb4 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'.  Fix all the bugs found.  There were no serious
ones.
1995-03-16 18:17:34 +00:00
sos
5da1431434 Don't allow the same MISC module loading more than once.. 1994-10-12 20:28:32 +00:00
phk
c3e4945541 All of this is cosmetic. prototypes, #includes, printfs and so on. Makes
GCC a lot more silent.
1994-10-02 17:35:40 +00:00
sos
64d698fbe9 Added support for EXEC type modules. 1994-09-25 08:51:07 +00:00
wollman
8c2367ad38 Fix a few niggling little bugs:
- set args->lkm_offset correctly so that VFS modules can be unloaded
- initialize _fs_vfsops.vfc_refcount correctly so that VFS modules can
  be unloaded
- include kernel.h in a few placves to get the correct definition of DATA_SET
1994-09-21 23:22:52 +00:00
wollman
c289ac89a1 Implemented loadable VFS modules, and made most existing filesystems
loadable.  (NFS is a notable exception.)
1994-09-21 03:47:43 +00:00
sos
89c704fc47 Changes to new sysent structure. TODO MOD_EXEC support.
Reviewed by:
Submitted by:
1994-08-26 08:42:07 +00:00
dg
c97639b923 1) cleaned up after Garrett - fixed more redundant declarations, changed
use of timeout_t -> timeout_func_t in aha1542 and aha1742 drivers.
2) fix a bug in the portalfs that was uncovered by better prototyping -
   specifically, the time must be converted from timeval to timespec
   before storing in va_atime.
3) fixed/added some miscellaneous prototypes
1994-08-20 03:49:02 +00:00
dg
6b1e97340f Terry Lambert's loadable kernel module support w/improvements from the
NetBSD group.
1994-08-19 11:45:29 +00:00