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| author | Jean-Pierre André <jpandre@users.sourceforge.net> | 2013-05-12 09:55:57 +0200 |
|---|---|---|
| committer | Jean-Pierre André <jpandre@users.sourceforge.net> | 2013-05-12 09:55:57 +0200 |
| commit | 4c8fece06529e0bc7a5a86ee0cafa66e6c902a8f (patch) | |
| tree | a96a4cf66b8d15430fb32fa9d9aa632fc1d7251c | |
| parent | 8ef3114dfcee95cd53d8a4d8a8d08b99fd76f126 (diff) | |
| download | illumos-fusefs-4c8fece06529e0bc7a5a86ee0cafa66e6c902a8f.tar.gz | |
Allow ftruncate() on files open for write irrespective of permissions
| -rw-r--r-- | kernel/fuse_vnops.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/kernel/fuse_vnops.c b/kernel/fuse_vnops.c index cc410d6..63e3d11 100644 --- a/kernel/fuse_vnops.c +++ b/kernel/fuse_vnops.c @@ -1762,10 +1762,11 @@ fuse_setattr( * its file handle. * We cannot tell whether truncate() or ftruncate() * was used, we can only check whether the calling - * process has a create handle on the file. + * process has a write or create handle on the file to + * allow truncation irrespective of current permissions. */ fh_param.credp = credp; - fh_param.rw_mode = FCREAT; + fh_param.rw_mode = FWRITE | FAPPEND | FCREAT; fh_param.fufh = NULL; if (vp->v_wrcnt && (iterate_filehandle(vp, fuse_std_filecheck, &fh_param, @@ -1956,17 +1957,18 @@ fuse_access_i(void *vvp, int mode, struct cred *credp) fai->mask |= X_OK; /* * Do not request a check from the file system if the - * file is being created by the current process. + * file is being created or written by the current process, * This is a workaround needed to allow ftruncate() * for the process having a write descriptor to the file - * it is currently creating as read-only. + * when it is creating as read-only or permissions + * changed since the file was opened. */ if ((mode & VWRITE) && vp->v_wrcnt) { struct fuse_fh_param fh_param; struct fuse_file_handle *fhp; fh_param.credp = credp; - fh_param.rw_mode = FCREAT; + fh_param.rw_mode = FWRITE | FAPPEND | FCREAT; fh_param.fufh = NULL; if (vp->v_wrcnt && (iterate_filehandle(vp, fuse_std_filecheck, |