diff options
| -rw-r--r-- | source3/smbd/smb2_ioctl.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/source3/smbd/smb2_ioctl.c b/source3/smbd/smb2_ioctl.c index f1ad8ab16d..b1a9e32f36 100644 --- a/source3/smbd/smb2_ioctl.c +++ b/source3/smbd/smb2_ioctl.c @@ -462,6 +462,92 @@ static struct tevent_req *smbd_smb2_ioctl_send(TALLOC_CTX *mem_ctx, return tevent_req_post(req, ev); } + case FSCTL_VALIDATE_NEGOTIATE_INFO: + { + struct smbXsrv_connection *conn = smbreq->sconn->conn; + uint32_t in_capabilities; + DATA_BLOB in_guid_blob; + struct GUID in_guid; + uint16_t in_security_mode; + uint16_t in_num_dialects; + uint16_t i; + DATA_BLOB out_guid_blob; + NTSTATUS status; + + if (in_input.length < 0x18) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + in_capabilities = IVAL(in_input.data, 0x00); + in_guid_blob = data_blob_const(in_input.data + 0x04, 16); + in_security_mode = SVAL(in_input.data, 0x14); + in_num_dialects = SVAL(in_input.data, 0x16); + + if (in_input.length != (0x18 + in_num_dialects*2)) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + if (in_max_output < 0x18) { + tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL); + return tevent_req_post(req, ev); + } + + if (in_num_dialects != conn->smb2.client.num_dialects) { + state->disconnect = true; + tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED); + return tevent_req_post(req, ev); + } + + for (i=0; i < in_num_dialects; i++) { + uint16_t v = SVAL(in_input.data, 0x18 + i*2); + + if (conn->smb2.client.dialects[i] != v) { + state->disconnect = true; + tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED); + return tevent_req_post(req, ev); + } + } + + if (!GUID_compare(&in_guid, &conn->smb2.client.guid)) { + state->disconnect = true; + tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED); + return tevent_req_post(req, ev); + } + + if (in_security_mode != conn->smb2.client.security_mode) { + state->disconnect = true; + tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED); + return tevent_req_post(req, ev); + } + + if (in_capabilities != conn->smb2.client.capabilities) { + state->disconnect = true; + tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED); + return tevent_req_post(req, ev); + } + + status = GUID_to_ndr_blob(&conn->smb2.server.guid, state, + &out_guid_blob); + if (tevent_req_nterror(req, status)) { + return tevent_req_post(req, ev); + } + + state->out_output = data_blob_talloc(state, NULL, 0x18); + if (tevent_req_nomem(state->out_output.data, req)) { + return tevent_req_post(req, ev); + } + + SIVAL(state->out_output.data, 0x00, conn->smb2.server.capabilities); + memcpy(state->out_output.data+0x04, out_guid_blob.data, 16); + SIVAL(state->out_output.data, 0x14, conn->smb2.server.security_mode); + SIVAL(state->out_output.data, 0x16, conn->smb2.server.dialect); + + tevent_req_done(req); + return tevent_req_post(req, ev); + } + default: { uint8_t *out_data = NULL; uint32_t out_data_len = 0; |