Since rpc_connect_async sets autoreconnect to 0, turn autoreconnect on
after the connection has completed, not before.
This fixes#76.
Signed-off-by: Ross Lagerwall <rosslagerwall@gmail.com>
Add a new family of functions, nfs_create, like nfs_creat but takes an
additional flags argument which allows extra flags like O_SYNC, O_EXCL
and O_APPEND to be specified.
This patch add support for an internal readahead machanism. The maximum readahead
size can be specified via URL parameter readahead. This should significantly
speed up small sequential reads.
Signed-off-by: Peter Lieven <pl@kamp.de>
Always pass a fattr3 structure to the callbacks for the internal function
to perform recursive lookups : nfs_lookuppath_async().
This will allow us to access for example the mtime for an object before we
start performing any expensive functions.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Since the interface is modelled after the libc calls we should try to match
their behaviour to avoid unpleasant surprises:
* read / write (sync and async flavours) update the file position
* pread / pwrite (sync and async flavours) do not update the file position
.
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
Otherwise end up with a null string which is not permitted (RFC 1813, 3.2;
the code checks for it right after the now fixed nullification of "/").
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
if there are already requests in flight we cannot return with an error immediately
from the functions since the caller will likely tidy up his data structures directly
and later on we call his callback with private_data that has likely already
been freed.
Signed-off-by: Peter Lieven <pl@kamp.de>
the RFC allows the server to read less bytes than requested even
if not at the EOF.
this patch implements a reissue logic for the reminder of the
read request(s).
Signed-off-by: Peter Lieven <pl@kamp.de>
the RFC allows the server to write less bytes than requested.
this patch implements a reissue logic for the reminder of the
write request(s).
Signed-off-by: Peter Lieven <pl@kamp.de>
when calculation the max_offset the (unsigned) leads to a cast
to a 32-bit unsigned integer depending on the platform. as a result
we update the max_offset everytime when it grows beyond 2^32.
this leads to a wrong return max_offset value if the callbacks
are received out of order.
Signed-off-by: Peter Lieven <pl@kamp.de>
On servers with extended attributes, a server copuld be set up to
deny READ-ATTRIBUTES for the libnfs user.
This means that READDIRPLUS will no longer work since it will need to
stat() and thus READ-ATTRIBUTE in order to prepare the response.
Libnfs has READDIRPLUS emulation for the cases where this command fails
by switching to old READDIR to scan all the file names and then a LOOKUP loop for getting the file attributes.
Most of the time the purpose for this emulation is to handle the case where the server simply does not support READDIRPLUS at all, which sometimes is the case for embedded systems with userspace nfs servers.
In this case, where files just have READ-ATTRIBUTE deny for the libnfs user,
this will also fail and trigger the fallback to READDIR + LOOKUP-loop.
If the LOOKUP fails for this loop, then just ignore trying to update the attributes we have for this object, but do not fail the actual READDIRPLUS emulation.
This addresses a permissions issue reported by a XBMC user in issue #60
Spotted by clang analyzer.
This also introduces asserts to help clang analyzer avoid reporting
false positives.
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
Spotted by clang analyzer.
This also introduces asserts to help clang analyzer avoid
reporting false positives.
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
Spotted by clang analyzer.
This introduces another allocation to create a copy of the target path
of a rename in case it needs to be reported via rpc_set_error - it might
be a better idea to avoid the allocation and have a slightly less informative
error message?
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
free() can cope with nullptrs and there's no point in null-ing free'd members
as the containing struct is free'd as well.
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
Non-debug builds will trip over the nullptr too - do we rather
want to leak the memory there?
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
nfs_chown_data is hooked up under nfs_cb_data->continue_data but
no ->free_continue_data is configured, so once free_nfs_cb_data is
invoked it will trip over a nullptr.
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
Spotted by clang:
../../libnfs.git/lib/libnfs.c:1002:13: warning: using the result of an assignment as a condition without parentheses
[-Wparentheses]
while (str = strstr(path, "//")) {
~~~~^~~~~~~~~~~~~~~~~~~~
../../libnfs.git/lib/libnfs.c:1002:13: note: place parentheses around the assignment to silence this warning
while (str = strstr(path, "//")) {
^
( )
../../libnfs.git/lib/libnfs.c:1002:13: note: use '==' to turn this assignment into an equality comparison
while (str = strstr(path, "//")) {
^
==
Make the intent clear by adding extra parentheses, and also
remove trailing whitespace from libnfs.c while at it.
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
Ross Lagerwall