diff options
Diffstat (limited to 'source3/smbd')
| -rw-r--r-- | source3/smbd/smb2_create.c | 225 |
1 files changed, 217 insertions, 8 deletions
diff --git a/source3/smbd/smb2_create.c b/source3/smbd/smb2_create.c index 08aebd6c83..3090650c3b 100644 --- a/source3/smbd/smb2_create.c +++ b/source3/smbd/smb2_create.c @@ -409,16 +409,176 @@ static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx, } else { char *fname; struct smb_filename *smb_fname = NULL; - - /* these are ignored for SMB2 */ - in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */ - in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */ + struct smb2_create_blob *exta = NULL; + struct ea_list *ea_list = NULL; + struct smb2_create_blob *mxac = NULL; + NTTIME max_access_time = 0; + struct smb2_create_blob *secd = NULL; + struct security_descriptor *sec_desc = NULL; + struct smb2_create_blob *dhnq = NULL; + struct smb2_create_blob *dhnc = NULL; + struct smb2_create_blob *alsi = NULL; + uint64_t allocation_size = 0; + struct smb2_create_blob *twrp = NULL; + struct smb2_create_blob *qfid = NULL; + + exta = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_EXTA); + mxac = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_MXAC); + secd = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_SECD); + dhnq = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_DHNQ); + dhnc = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_DHNC); + alsi = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_ALSI); + twrp = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_TWRP); + qfid = smb2_create_blob_find(&in_context_blobs, + SMB2_CREATE_TAG_QFID); fname = talloc_strdup(state, in_name); if (tevent_req_nomem(fname, req)) { return tevent_req_post(req, ev); } + if (exta) { + if (dhnc) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + /* TODO */ + tevent_req_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED); + return tevent_req_post(req, ev); + } + + if (mxac) { + if (dhnc) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + if (mxac->data.length == 0) { + max_access_time = 0; + } else if (mxac->data.length == 8) { + max_access_time = BVAL(mxac->data.data, 0); + } else { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + } + + if (secd) { + enum ndr_err_code ndr_err; + + if (dhnc) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + sec_desc = talloc_zero(state, struct security_descriptor); + if (tevent_req_nomem(sec_desc, req)) { + return tevent_req_post(req, ev); + } + + ndr_err = ndr_pull_struct_blob(&secd->data, + sec_desc, NULL, sec_desc, + (ndr_pull_flags_fn_t)ndr_pull_security_descriptor); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + DEBUG(2,("ndr_pull_security_descriptor failed: %s\n", + ndr_errstr(ndr_err))); + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + } + + if (dhnq) { + if (dhnc) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + if (dhnq->data.length != 16) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + /* + * we don't support durable handles yet + * and have to ignore this + */ + } + + if (dhnc) { + if (dhnc->data.length != 16) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + /* we don't support durable handles yet */ + tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND); + return tevent_req_post(req, ev); + } + + if (alsi) { + if (dhnc) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + if (alsi->data.length != 8) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + allocation_size = BVAL(alsi->data.data, 0); + } + + if (twrp) { + NTTIME nttime; + time_t t; + struct tm *tm; + + if (dhnc) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + if (twrp->data.length != 8) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + nttime = BVAL(twrp->data.data, 0); + t = nt_time_to_unix(nttime); + tm = gmtime(&t); + + TALLOC_FREE(fname); + fname = talloc_asprintf(state, + "@GMT-%04u.%02u.%02u-%02u.%02u.%02u\\%s", + tm->tm_year + 1900, + tm->tm_mon + 1, + tm->tm_mday, + tm->tm_hour, + tm->tm_min, + tm->tm_sec, + in_name); + if (tevent_req_nomem(fname, req)) { + return tevent_req_post(req, ev); + } + } + + if (qfid) { + if (qfid->data.length != 0) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + } + + /* these are ignored for SMB2 */ + in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */ + in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */ + /* convert '\\' into '/' */ status = check_path_syntax(fname); if (!NT_STATUS_IS_OK(status)) { @@ -448,16 +608,65 @@ static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx, in_create_options, in_file_attributes, 0, /* oplock_request */ - 0, /* allocation_size */ - NULL, /* security_descriptor */ - NULL, /* ea_list */ + allocation_size, + sec_desc, + ea_list, &result, &info); if (!NT_STATUS_IS_OK(status)) { tevent_req_nterror(req, status); return tevent_req_post(req, ev); } - sbuf = smb_fname->st; + + if (mxac) { + NTTIME last_write_time; + + unix_timespec_to_nt_time(&last_write_time, + result->fsp_name->st.st_ex_mtime); + if (last_write_time != max_access_time) { + uint8_t p[8]; + uint32_t max_access_granted; + DATA_BLOB blob = data_blob_const(p, sizeof(p)); + + status = smbd_check_open_rights(smbreq->conn, + result->fsp_name, + SEC_FLAG_MAXIMUM_ALLOWED, + &max_access_granted); + + SIVAL(p, 0, NT_STATUS_V(status)); + SIVAL(p, 4, max_access_granted); + + status = smb2_create_blob_add(state, + &out_context_blobs, + SMB2_CREATE_TAG_MXAC, + blob); + if (!NT_STATUS_IS_OK(status)) { + tevent_req_nterror(req, status); + return tevent_req_post(req, ev); + } + } + } + + if (qfid) { + uint8_t p[32]; + DATA_BLOB blob = data_blob_const(p, sizeof(p)); + + ZERO_STRUCT(p); + + /* TODO: maybe use result->file_id */ + SIVAL(p, 0, result->fsp_name->st.st_ex_ino);/* FileIndexLow */ + SIVAL(p, 4, result->fsp_name->st.st_ex_dev);/* FileIndexHigh */ + + status = smb2_create_blob_add(state, &out_context_blobs, + SMB2_CREATE_TAG_QFID, + blob); + if (!NT_STATUS_IS_OK(status)) { + tevent_req_nterror(req, status); + return tevent_req_post(req, ev); + } + } + + sbuf = result->fsp_name->st; } smb2req->compat_chain_fsp = smbreq->chain_fsp; |