diff options
Diffstat (limited to 'source3/smbd')
| -rw-r--r-- | source3/smbd/smb2_ioctl.c | 74 |
1 files changed, 57 insertions, 17 deletions
diff --git a/source3/smbd/smb2_ioctl.c b/source3/smbd/smb2_ioctl.c index ea29cd460d..be2a798b64 100644 --- a/source3/smbd/smb2_ioctl.c +++ b/source3/smbd/smb2_ioctl.c @@ -25,6 +25,7 @@ #include "../lib/util/tevent_ntstatus.h" #include "include/ntioctl.h" #include "smb2_ioctl_private.h" +#include "librpc/gen_ndr/ioctl.h" static struct tevent_req *smbd_smb2_ioctl_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, @@ -227,6 +228,42 @@ NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req) return smbd_smb2_request_pending_queue(req, subreq, 1000); } +/* + * 3.3.4.4 Sending an Error Response + * An error code other than one of the following indicates a failure: + */ +static bool smbd_smb2_ioctl_is_failure(uint32_t ctl_code, NTSTATUS status, + size_t data_size) +{ + if (NT_STATUS_IS_OK(status)) { + return false; + } + + /* + * STATUS_BUFFER_OVERFLOW in a FSCTL_PIPE_TRANSCEIVE, FSCTL_PIPE_PEEK or + * FSCTL_DFS_GET_REFERRALS Response specified in section 2.2.32.<153> + */ + if (NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW) + && ((ctl_code == FSCTL_PIPE_TRANSCEIVE) + || (ctl_code == FSCTL_PIPE_PEEK) + || (ctl_code == FSCTL_DFS_GET_REFERRALS))) { + return false; + } + + /* + * Any status other than STATUS_SUCCESS in a FSCTL_SRV_COPYCHUNK or + * FSCTL_SRV_COPYCHUNK_WRITE Response, when returning an + * SRV_COPYCHUNK_RESPONSE as described in section 2.2.32.1. + */ + if (((ctl_code == FSCTL_SRV_COPYCHUNK) + || (ctl_code == FSCTL_SRV_COPYCHUNK_WRITE)) + && (data_size == sizeof(struct srv_copychunk_rsp))) { + return false; + } + + return true; +} + static void smbd_smb2_request_ioctl_done(struct tevent_req *subreq) { struct smbd_smb2_request *req = tevent_req_callback_data(subreq, @@ -261,9 +298,14 @@ static void smbd_smb2_request_ioctl_done(struct tevent_req *subreq) return; } - if (NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) { - /* also ok */ - } else if (!NT_STATUS_IS_OK(status)) { + inbody = SMBD_SMB2_IN_BODY_PTR(req); + + in_ctl_code = IVAL(inbody, 0x04); + in_file_id_persistent = BVAL(inbody, 0x08); + in_file_id_volatile = BVAL(inbody, 0x10); + + if (smbd_smb2_ioctl_is_failure(in_ctl_code, status, + out_output_buffer.length)) { error = smbd_smb2_request_error(req, status); if (!NT_STATUS_IS_OK(error)) { smbd_server_connection_terminate(req->sconn, @@ -276,12 +318,6 @@ static void smbd_smb2_request_ioctl_done(struct tevent_req *subreq) out_input_offset = SMB2_HDR_BODY + 0x30; out_output_offset = SMB2_HDR_BODY + 0x30; - inbody = SMBD_SMB2_IN_BODY_PTR(req); - - in_ctl_code = IVAL(inbody, 0x04); - in_file_id_persistent = BVAL(inbody, 0x08); - in_file_id_volatile = BVAL(inbody, 0x10); - outbody = data_blob_talloc(req->out.vector, NULL, 0x30); if (outbody.data == NULL) { error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY); @@ -399,19 +435,23 @@ static NTSTATUS smbd_smb2_ioctl_recv(struct tevent_req *req, NTSTATUS status = NT_STATUS_OK; struct smbd_smb2_ioctl_state *state = tevent_req_data(req, struct smbd_smb2_ioctl_state); + enum tevent_req_state req_state; + uint64_t err; *disconnect = state->disconnect; - if (tevent_req_is_nterror(req, &status)) { - if (!NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) { - tevent_req_received(req); - return status; - } + if ((tevent_req_is_error(req, &req_state, &err) == false) + || (req_state == TEVENT_REQ_USER_ERROR)) { + /* + * Return output buffer to caller if the ioctl was successfully + * processed, even if a user error occurred. Some ioctls return + * data on failure. + */ + *out_output = state->out_output; + talloc_steal(mem_ctx, out_output->data); } - *out_output = state->out_output; - talloc_steal(mem_ctx, out_output->data); - + tevent_req_is_nterror(req, &status); tevent_req_received(req); return status; } |