diff options
| -rw-r--r-- | source4/ntvfs/posix/pvfs_setfileinfo.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/source4/ntvfs/posix/pvfs_setfileinfo.c b/source4/ntvfs/posix/pvfs_setfileinfo.c index d1d8f819ef..da1e31e639 100644 --- a/source4/ntvfs/posix/pvfs_setfileinfo.c +++ b/source4/ntvfs/posix/pvfs_setfileinfo.c @@ -472,6 +472,84 @@ NTSTATUS pvfs_setfileinfo(struct ntvfs_module_context *ntvfs, return pvfs_dosattrib_save(pvfs, h->name, h->fd); } +/* + retry an open after a sharing violation +*/ +static void pvfs_retry_setpathinfo(struct pvfs_odb_retry *r, + struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + void *_info, + void *private_data, + enum pvfs_wait_notice reason) +{ + union smb_setfileinfo *info = talloc_get_type(_info, + union smb_setfileinfo); + NTSTATUS status = NT_STATUS_INTERNAL_ERROR; + + talloc_free(r); + + switch (reason) { + case PVFS_WAIT_CANCEL: +/*TODO*/ + status = NT_STATUS_CANCELLED; + break; + case PVFS_WAIT_TIMEOUT: + /* if it timed out, then give the failure + immediately */ +/*TODO*/ + status = NT_STATUS_SHARING_VIOLATION; + break; + case PVFS_WAIT_EVENT: + + /* try the open again, which could trigger another retry setup + if it wants to, so we have to unmark the async flag so we + will know if it does a second async reply */ + req->async_states->state &= ~NTVFS_ASYNC_STATE_ASYNC; + + status = pvfs_setpathinfo(ntvfs, req, info); + if (req->async_states->state & NTVFS_ASYNC_STATE_ASYNC) { + /* the 2nd try also replied async, so we don't send + the reply yet */ + return; + } + + /* re-mark it async, just in case someone up the chain does + paranoid checking */ + req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC; + break; + } + + /* send the reply up the chain */ + req->async_states->status = status; + req->async_states->send_fn(req); +} + +/* + setup for a unlink retry after a sharing violation + or a non granted oplock +*/ +static NTSTATUS pvfs_setpathinfo_setup_retry(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_setfileinfo *info, + struct odb_lock *lck, + NTSTATUS status) +{ + struct pvfs_state *pvfs = ntvfs->private_data; + struct timeval end_time; + + if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) { + end_time = timeval_add(&req->statistics.request_time, + 0, pvfs->sharing_violation_delay); + } else if (NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) { + end_time = timeval_add(&req->statistics.request_time, + pvfs->oplock_break_timeout, 0); + } else { + return NT_STATUS_INTERNAL_ERROR; + } + + return pvfs_odb_retry_setup(ntvfs, req, lck, end_time, info, NULL, + pvfs_retry_setpathinfo); +} /* set info on a pathname @@ -486,6 +564,7 @@ NTSTATUS pvfs_setpathinfo(struct ntvfs_module_context *ntvfs, struct utimbuf unix_times; uint32_t access_needed; uint32_t change_mask = 0; + struct odb_lock *lck = NULL; /* resolve the cifs name to a posix name */ status = pvfs_resolve_name(pvfs, req, info->generic.in.file.path, @@ -560,6 +639,20 @@ NTSTATUS pvfs_setpathinfo(struct ntvfs_module_context *ntvfs, case RAW_SFILEINFO_ALLOCATION_INFO: case RAW_SFILEINFO_ALLOCATION_INFORMATION: + status = pvfs_can_update_file_size(pvfs, req, name, &lck); + /* + * on a sharing violation we need to retry when the file is closed by + * the other user, or after 1 second + * on a non granted oplock we need to retry when the file is closed by + * the other user, or after 30 seconds + */ + if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) || + NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) && + (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) { + return pvfs_setpathinfo_setup_retry(pvfs->ntvfs, req, info, lck, status); + } + NT_STATUS_NOT_OK_RETURN(status); + if (info->allocation_info.in.alloc_size > newstats.dos.alloc_size) { /* strange. Increasing the allocation size via setpathinfo should be silently ignored */ @@ -575,6 +668,20 @@ NTSTATUS pvfs_setpathinfo(struct ntvfs_module_context *ntvfs, case RAW_SFILEINFO_END_OF_FILE_INFO: case RAW_SFILEINFO_END_OF_FILE_INFORMATION: + status = pvfs_can_update_file_size(pvfs, req, name, &lck); + /* + * on a sharing violation we need to retry when the file is closed by + * the other user, or after 1 second + * on a non granted oplock we need to retry when the file is closed by + * the other user, or after 30 seconds + */ + if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) || + NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) && + (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) { + return pvfs_setpathinfo_setup_retry(pvfs->ntvfs, req, info, lck, status); + } + NT_STATUS_NOT_OK_RETURN(status); + newstats.st.st_size = info->end_of_file_info.in.size; break; |