19db57c596
List all current ways to write a file system. Also, add a reference
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to puffs_req(3) for the manual operation case.
2007-05-09 18:24:11 +00:00
a1388b4c53
Return 0 from puffs_mainloop() if no error occurs.
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pointed out by Phil Nelson
2007-05-09 18:23:12 +00:00
e5a894536c
document PUFFS_KFLAG_WTCACHE and PUFFS_KFLAG_IAONDEMAND
2007-05-09 13:54:08 +00:00
06dd177014
document puffs_setback()
2007-05-09 13:46:16 +00:00
7faf2bccbe
Add puffs_setback(), which can be used to set setbacks for nodes before
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the call returns to the kernel. Currently it can be called only from
open(), mmap(), remove() and rmdir(). (But that might change)
2007-05-07 17:16:07 +00:00
0a36778e8f
Xr puffs_framebuf
2007-05-06 13:56:16 +00:00
bbf8b7cf94
document puffs_framebuf
2007-05-06 13:56:03 +00:00
4226bd8b40
implement the conveniently-already-prototyped puffs_framebuf_remaining(),
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which is just shorthand for tellsize() - telloff()
2007-05-06 10:54:41 +00:00
a5f3fa93dc
Remove the user-specified argument for the framebuf loop callback.
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It can be generated through other means if it is desired.
2007-05-06 10:21:45 +00:00
bb0de0a878
add stubby version of puffs_framebuf manual page. proper one
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forthcoming to an internet near you Real Soon Now(tm)
2007-05-05 16:09:16 +00:00
b223c403fc
Add puffs "frame buffers", which are an abstraction of the buffering
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and event handling mechanisms required in file servers with blocking
I/O backends. puffs_framebuf is built on the concept of puffs_cc
and uses those to multiplex execution where needed.
File systems are required to implement three methods:
* read frame
* write frame
* compare if frame is a response to the given one
Memory management is provided by puffs_framebuf, but the file
systems must still, of course, interpret the protocol and do e.g.
byte order conversion.
As always, puffs_framebuf is work in progress. Current users are
mount_psshfs and mount_9p.
2007-05-05 15:48:18 +00:00
5fac7361cf
Introduce PUFFS_FLAG_HASHPATH, which for PUFFS_FLAG_BUILDPATH file servers
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creates a hash of the node's path into po->po_hash to avoid a full pathcmp
every time.
2007-05-01 15:58:00 +00:00
9601d4d304
use more accurate flag masking
2007-04-22 18:02:44 +00:00
5ad485727c
assert that the file server doesn't try to return more cookies than
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it was supposed to
2007-04-20 08:28:53 +00:00
89a0f35e6c
improve descriptions and markup
2007-04-19 21:03:00 +00:00
5d86889ea0
add puffs_cc_getspecific(pcc), which is shorthand for:
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puffs_getspecific(puffs_cc_getusermount(pcc))
2007-04-19 14:45:03 +00:00
7cfb5f2d40
fix readdir prototype
2007-04-18 20:37:05 +00:00
d17f97ea42
* describe fhtonode, nodetofh and suspend
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* update description of readdir to match reality
2007-04-17 13:11:05 +00:00
eeff4f8efe
Introduce PUFFS_STORE_DCOOKIE, which stores a directory cookie for a
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given offset iff the directory read in question wants cookies.
2007-04-17 11:42:14 +00:00
f9d2f485d4
improve markup and descriptions
2007-04-17 10:14:27 +00:00
aaf5af07be
Move file system and node callbacks into their own manual page.
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Improve markup and descriptions a bit (not completely finished yet).
2007-04-16 19:16:02 +00:00
0d032531d1
document new interfaces
2007-04-16 16:37:02 +00:00
d1667bb48c
alloc to set flags when setting fhsize
2007-04-16 13:04:49 +00:00
fca427389c
some routines for setting mount parameters
2007-04-16 08:28:55 +00:00
37dd7942fc
Instead of keeping on adding parameters to puffs_mount(), make it
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only take the bare essentials, which currently means removing
"maxreqlen" from the argument list (all current callers I'm aware
of set it as 0 anyway). Introduce puffs_init(), which provides a
context for setting various parameters and puffs_domount(), which
can be used to mount the file system. Keep puffs_mount() as a
shortcut for the above two for simple file systems.
Bump development ABI version to 13. After all, it's Friday the 13th.
Watch out! Bad things can happen on Friday the 13th. --No carrier--
2007-04-13 13:35:46 +00:00
fdd8f87db5
document accessor routines added when making struct puffs_usermount
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implementation private
2007-04-12 21:45:29 +00:00
95a18d20b9
Hide struct puffs_usermount from the rest of the world and provide
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accessors for interesting data in it. Namely, you can now get
pu->pu_privdata with puffs_getspecific(), pu->pu_pn_root with
puffs_set/getroot() and pu->pu_maxreqlen with puffs_getmaxreqlen().
2007-04-12 15:09:00 +00:00
6b7023f08f
* support nodetofh and fhtonode callbacks
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* use new signature of node_readdir
2007-04-11 21:04:51 +00:00
f7d8f11391
document the flush routines
2007-04-06 17:55:10 +00:00
6cc35b910e
support page cache flushing
2007-04-06 17:49:11 +00:00
1e9c4b7026
use range invalidation op also for invalidating entire page cache of a node
2007-04-06 17:06:39 +00:00
622f8591d4
document puffs_inval_pagecache_node{,_range}
2007-04-06 16:44:01 +00:00
fa10fe8f9f
implement puffs_inval_pagecache_node_range()
2007-04-06 16:38:03 +00:00
dd4643d880
Remove check against null parameter along with the XXX comment wondering
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why the check was there. CID 4408
2007-03-29 12:54:54 +00:00
406a946463
document credentials & access control methods
2007-03-22 17:38:09 +00:00
cfd6dc233f
allow kernel creds in addition to superuser creds when checking for access
2007-03-22 17:15:34 +00:00
d28a42812b
unify the location of *pcr in puffs_access_*
2007-03-22 16:57:27 +00:00
3a93377a23
copy ngroups * sizeof(gid_t) groups instead of just ngroups
2007-03-22 15:48:42 +00:00
c3a2affb84
* return -1 and set errno instead of returning errno directly
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* introduce puffs_cred_isregular() which checks if the cred structure
has regular uid/gid (i.e. "person" credentials and not kernel creds)
2007-03-22 15:32:22 +00:00
1d029cc056
remove variable names from header
2007-03-22 14:22:08 +00:00
0f28e7c1d1
add routiens which check against ufs semantics for permission to
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chown, chmod and change a/mtime
2007-03-21 19:55:55 +00:00
1ba4b810d1
implement counterpart of vaccess()
2007-03-20 18:28:08 +00:00
a1e98c19f2
match puffs_node_access prototype with reality
2007-03-20 18:25:56 +00:00
a4143b4298
g/c unused debug variable
2007-03-20 11:28:35 +00:00
5c0f0bcf80
initial support for cacheops
2007-03-20 10:22:22 +00:00
2df275c4cd
va->va_mode doesn't contain the full argument to the mknod() system call,
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so introduce puffs_addvtype2mode() and use that in null.c to generate the
proper syscall argument
2007-03-16 08:14:49 +00:00
b93b025715
return errno instead of -1 if file is not present in lookup
2007-03-16 07:43:14 +00:00
ec2d43895a
add puffs paper presented at AsiaBSDCon 2007 to "SEE ALSO"
2007-03-13 17:06:10 +00:00
d695eff80f
Create in-memory nodes only per unique inode, not unique pathname.
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Solves problem with e.g. cache coherency of hardlinked files.
2007-03-13 17:05:23 +00:00
8022394bca
Until someone can sort non-priviledged mounts and kauth, force
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MNT_NOSUID | MNT_NODEV for mounts with geteuid() != 0. I'm tired
of typing them on the command line every time I test a file system.
2007-02-18 17:38:10 +00:00
b681c2611b
dump return values for operations
2007-02-18 17:36:48 +00:00
29d5922025
#include <ucontext.h>
2007-02-17 23:00:16 +00:00
70247c3530
in case rootpath is "/", make dotdot lookup in "/foo" build
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a path of "/", not ""
2007-02-15 21:26:50 +00:00
76fead3a3e
Readlink should place the length of the link (without terminating
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nul) in the length field. Make it so.
2007-02-15 19:33:51 +00:00
09156a1e18
use puffs_path_walkcmp() instead of a homegrown comparison routine
2007-02-15 17:05:25 +00:00
7fea503eb4
Introduce puffs_path_walkcmp(), which is to be called from nodewalk
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and compares the path of the node against the given pathobject.
Also make comparison method take a flag to indicate if it should
check if the second path is a true prefix of the first.
plus some namespace cleanup
2007-02-15 17:04:46 +00:00
a32e39e624
* get rid of the holy kernel-given ISDOTDOT, and instead define a
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macro which does strcmp against ".." and (the untranslated)
componentname
* make PUFFS_FLAG_BUILDPATH build paths also if dotdot is the case,
and adapt the regular path objects to this
* make nullfs lookup readable because we can now get rid of dotdot
processing there
2007-02-15 12:51:45 +00:00
1427bda45d
generic node reclaim, which just puts a puffs_node
2007-02-15 12:51:24 +00:00
f7a084b3b0
Nm the manual puffs instead of libpuffs
2007-02-08 05:24:36 +00:00
6c42c843ee
make it possible for the root path to be "/" and the next path to
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be "/foo" instead of "//foo"
2007-02-06 01:46:41 +00:00
e6a160bd78
Fix spellos.
2007-01-28 07:58:05 +00:00
9715dfff81
If we can't set the attributes when making the directory, use rmdir to
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remove the directory, not unlink.
2007-01-27 11:49:44 +00:00
f4e2aba8ce
document puffs_fs_suspend()
2007-01-26 23:55:27 +00:00
d83ed90176
add interfaces for suspending the file system
2007-01-26 23:00:33 +00:00
6d53f7319f
New sentence, new line.
2007-01-20 16:49:36 +00:00
1118cadca7
document puffs_docc
2007-01-20 15:11:02 +00:00
5581d777a3
xref puffs_req
2007-01-20 15:10:38 +00:00
2fbe1b2261
document request handling routines
2007-01-20 15:09:34 +00:00
288823a738
Be consistent with the rest of the framework about the argument
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order of puffs_docc and puffs_dopreq
2007-01-20 14:37:06 +00:00
84e83df1bb
be consistent in naming request handlers
2007-01-20 13:52:14 +00:00
937097aa47
document puffs_getstate() and puffs_setstacksize()
2007-01-20 13:34:35 +00:00
2b5809387d
Sort SEE ALSO.
2007-01-20 13:23:59 +00:00
809ae5f803
Bring the documentation slightly more into sync with the current
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reality. It's still really a far cry from proper documentation,
though.
2007-01-19 21:10:55 +00:00
c068d370f2
revoke revoke
2007-01-16 22:37:17 +00:00
05861b929d
Checkpoint some more work in progress: for the benefit those file
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system backends which operate purely based on paths, push out more
path management into the library and make path management more
abstract: enable a file system to define a bunch of path management
callbacks, which are used by the framework. Management of normal
/this/is/a/path type paths is provided by the library.
2007-01-15 00:39:02 +00:00
5014a4c9c2
For directory renames we need to rename all the child nodes for
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the given directory if the file system wants paths (PUFFS_FLAG_BUILDPATH).
Do this by walking the nodelist and adjusting the path prefix of
each matching node.
2007-01-11 18:18:36 +00:00
a3d07fb3e9
implement fsync
2007-01-11 17:48:21 +00:00
b599bb507d
* do the l-variations of syscalls, since some nodes are symlinks
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* truncate only regular files to set size
* do the chmod()-dance for cache flush to now write-protected files
until I can think of a nicer way to solve this
2007-01-11 14:59:35 +00:00
e639bec8c2
Add preliminary code for a nullfs layer, which can be used to mount
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a directory hierarchy to another point, just like with the kernel
nullfs. This is not really a layering scheme yet, but it should
evolve into one. Currently it can just be used to do 1:1 mapping.
2007-01-11 01:01:55 +00:00
14b3edf81b
* don't chdir in possible daemon() call for the benefit of file systems
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which specify a relative path as the root
* if (buildpath), build link source full pathname for the duration of
the operation
2007-01-10 23:02:50 +00:00
2811d45fdd
Be less shy about the default stack size, it's a only virtual memory space.
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TODO: put a guard page at the end
2007-01-10 20:11:04 +00:00
71ddd8df08
rename name cache invalidation interface to be in sync with the
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kernel operation names, i.e. contain "namecache" instead of just "name"
2007-01-09 18:19:01 +00:00
03a190dc22
lib interface for invalidation routines
2007-01-09 18:15:08 +00:00
7cc096d8ec
* get rid of the mount callback; it's no great surprise to the
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server that it needs to mount the file system backend if it wants
to call mount
* provide some options for getmntopts(), assume that callers will parse
command line (or fstab) args
* reorganize the puffs_cc interface just a bit, preparing for a bigger
revamp later
2007-01-06 18:22:09 +00:00
f70a3c8c19
* inform kernel of our version
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* homegrown lib ABI check (to avoid bumping major a ludicrillion times
before reaching stability)
2007-01-02 15:53:05 +00:00
184a7d787c
checkpoint some experimental work-in-progress, namely:
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Add support for having multiple outstanding operations. This is done
by exposing enough interfaces so that it is convenient to have the
main event loop in the implementation itself and by providing a
continuation framework for convinient blocking and rescheduling.
works fine, but will undergo further cleanup & development
2006-12-29 15:28:11 +00:00
1a0e3f4a48
CID4360: don't leak `buf' upon return
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ok pooka@
2006-12-14 18:15:59 +00:00
49df5bfc7b
outline & export code for interfacing with kernel GET/PUT requests
2006-12-07 23:15:20 +00:00
24fb4d5d8c
g/c out-of-date comment
2006-12-07 17:39:54 +00:00
43d8340ec6
support mmap
2006-12-07 16:59:14 +00:00
79fa3dd2c2
cleanup generated stuff from comments
2006-12-07 16:13:51 +00:00
55544f739a
rototill the operation callbacks: unify the ops under struct puffs_ops
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and namespace them
2006-12-07 10:53:21 +00:00
a0eb335104
adapt to kernel change:
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Allow multiple requests to be transferred in each GET/PUTOP
2006-12-05 23:04:21 +00:00
b98361ea36
sauce catchup
2006-12-01 15:31:25 +00:00
0d5746a9ac
PUFFSFLAG -> PUFFS_FLAG to be consistent with the kernel
2006-12-01 12:50:06 +00:00
465f49d71b
build & send implemented operations list to kernel
2006-12-01 12:38:11 +00:00
d4280e60eb
update with reality
2006-11-30 05:53:34 +00:00
c145fb5a17
summon daemon(3) in mainloop unless the nodaemon flag is given
2006-11-30 05:37:48 +00:00
c9aa28f463
* document open, close and access
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* nomenclature improvements
2006-11-23 17:45:11 +00:00
4b5bf45935
const coherence
2006-11-23 16:44:28 +00:00
pooka