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metze
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thanks to valgrind for this one
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This caused havoc on the build farm. Interestingly, it only affected
gcc 4.3.3, not gcc 4.4.1
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The data_blob_free() was changing the size we set the stream to
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The passed in SD is not used to limit the access mask allowed on file
create.
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The change to check for invalid \ prefix on SMB2 paths broke the
internal SMB2 code.
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Previously when a file was created, we produces the resulting access
mask based on an ACL check against the parent. This change means we
now calculate the inherited ACL much earlier, and produce the
resulting access mask from that ACL, or the user supplied ACL.
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chown is expected to fail under uwrap
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This makes the unix access check much closer to the full ACL check
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This matches the sec_access_check() code
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Construct the filename from the old handle and the new name.
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In order to implement root_fid in the s4 SMB server we need to declare
it as a handle type, just as for other fnum values in SMB. This
required some extensive (but simple) changes in many bits of code.
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The CREATEX_ACCESS test shows that this is used as a bit test, not a
equality test
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This segfault occoured in cases where we rejected (or never attempted)
the tree connect, so had an invalid private pointer for the logoff
codepath.
Andrew Bartlett
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clients may provide arbitrary names, but we only want lowercase alnum
names
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We now open a named via the named_pipe_auth
code and process IO via the tstream interface.
This means we support byte mode and message mode
named pipes.
We also correctly issue NT_STATUS_PIPE_BUSY
when a smb_trans request comes in and a read or smb_trans
is already pending.
We also have support for async dcerpc over ncacn_np now,
and we now can remove the ncacn_np specific hacks from the
rpc_server/ code.
metze
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This bug was caused by two things:
1) in the unix ACL mapping, we were not taking into account group
write permssions for the SEC_STD_DELETE flag
2) when a file is created using OVERWRITE mode, a fchmod() would
fail if the user is not the file owner. We resolve that by only
doing the fchmod() if the mapped file attribute does not match the
desired file attribute
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This fixes two issues pointed out by Andrew. It adds a runtime
uwrap_enabled() call that wraps the skips needed for uid emulation. It
also makes the skip in the directory_create_or_exist() function only
change the uid checking code, not the permissions code
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This library intercepts seteuid and related calls, and simulates them
in a manner similar to the nss_wrapper and socket_wrapper
libraries. This allows us to enable the vfs_unixuid NTVFS module in
the build farm, which means we are more likely to catch errors in the
token manipulation.
The simulation is not complete, but it is enough for Samba4 for
now. The major areas of incompleteness are:
- no emulation of setreuid, setresuid or saved uids. These would be
needed for use in Samba3
- no emulation of ruid changing. That would also be needed for Samba3
- no attempt to emulate file ownership changing, so code that (for
example) tests whether st.st_uid matches geteuid() needs special
handling
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This fixes bug 6547, where smbclient in S3 reads more than 64k at a
time with readx.
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Changes the order of two commands. First set up the "priv" structure, then
assign it to the "ntvfs" structure.
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metze
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This caused the panics on the RAW-SETFILEINFO.RENAME test,
because we returned an empty strings.
The problem was:
ERROR: talloc_steal with references at ntvfs/posix/pvfs_setfileinfo.c:215
reference at ntvfs/posix/pvfs_resolve.c:799
metze
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ntvfs_map_fsinfo, ntvfs_map_qpathinfo, ntvfs_map_qfileinfo used an
old synchronous mapping technique, acceptable on the grounds that
they were only used by the simple vfs which was synchronous.
Other vfs may/do use these functions, and by upgrading them to use the
ntvfs_map_async_setup/ntvfs_map_async_finish framework, they can now be
used asynchronously.
Signed-off-by: Sam Liddicott <sam@liddicott.com>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
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When the notify buffer overruns and there are no pending notify
requests, the notify buffer doesn't actually get destroyed, it just
gets put in a state where new notifies are discarded and the next
notify change request will return 0 changes.
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This change brings ntvfs_connect into compliance with other ntvfs functions
which take an ntvfs module, an ntvfs request and an smb io union.
It now becomes the responsibility of ntvfs modules to examine
tcon->generic.level themselves and derive the share name and any other
options
directly; e.g.
const char *sharename;
switch (tcon->generic.level) {
case RAW_TCON_TCON:
sharename = tcon->tcon.in.service;
break;
case RAW_TCON_TCONX:
sharename = tcon->tconx.in.path;
break;
case RAW_TCON_SMB2:
default:
return NT_STATUS_INVALID_LEVEL;
}
if (strncmp(sharename, "\\\\", 2) == 0) {
char *p = strchr(sharename+2, '\\');
if (p) {
sharename = p + 1;
}
}
service.c smbsrv_tcon_backend() is called before ntvfs_connect and fills in
some of the tcon->..out values.
For the case of RAW_TCON_TCONX, it filles out tcon->tconx.out.tid and
tcon->tconx.out.options
For the case of RAW_TCON_TCON it fills out tcon->tcon.out.tid and
tcon->tcon.out.max_xmit
Thus the ntvfs_connect function for vfs modules may override these values
if desired, but are not required to.
ntvfs_connect functions are required to fill in the tcon->tconx.out.*_type
fields, for RAW_TCON_TCONX, perhaps something like:
if (tcon->generic.level == RAW_TCON_TCONX) {
tcon->tconx.out.fs_type = ntvfs->ctx->fs_type;
tcon->tconx.out.dev_type = ntvfs->ctx->dev_type;
}
Signed-off-by: Sam Liddicott <sam@liddicott.com>
(I fixed the ntvfs_connect() in the smb_server/smb2/
and the RAW_TCON_SMB2 switch case in the modules)
Signed-off-by: Stefan Metzmacher <metze@samba.org>
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backend
The vfs_unixuid module changes the uid of the process when executing
operations on behalf of the user. Within the VFS backend we may rely
on semi-async calls, such as winbind calls, which will call the event
loop again. To cope with this we need to ensure that while inside
those calls we revert the uid to root, then revert back to the
connected user when we have finished with the semi-async calls.
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