--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Printing routines that bridge to spoolss
+ Copyright (C) Simo Sorce 2010
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "printing.h"
+#include "../librpc/gen_ndr/cli_spoolss.h"
+
+void print_spool_terminate(struct connection_struct *conn,
+ struct print_file_data *print_file);
+
+/***************************************************************************
+ * Open a Document over spoolss
+ ***************************************************************************/
+
+#define DOCNAME_DEFAULT "Remote Downlevel Document"
+#ifndef PRINT_SPOOL_PREFIX
+#define PRINT_SPOOL_PREFIX "smbprn."
+#endif
+
+NTSTATUS print_spool_open(files_struct *fsp,
+ const char *fname,
+ uint16_t current_vuid)
+{
+ NTSTATUS status;
+ TALLOC_CTX *tmp_ctx;
+ struct print_file_data *pf;
+ struct rpc_pipe_client *cli;
+ struct spoolss_DevmodeContainer devmode_ctr;
+ union spoolss_DocumentInfo info;
+ int fd = -1;
+ WERROR werr;
+
+ tmp_ctx = talloc_new(fsp);
+ if (!tmp_ctx) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ pf = talloc_zero(fsp, struct print_file_data);
+ if (!pf) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ pf->svcname = talloc_strdup(pf, lp_servicename(SNUM(fsp->conn)));
+
+ /* the document name is derived from the file name.
+ * "Remote Downlevel Document" is added in front to
+ * mimic what windows does in this case */
+ pf->docname = talloc_strdup(pf, DOCNAME_DEFAULT);
+ if (!pf->docname) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ if (fname) {
+ const char *p = strrchr(fname, '/');
+ if (!p) {
+ p = fname;
+ }
+ pf->docname = talloc_asprintf_append(pf->docname, " %s", p);
+ if (!pf->docname) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ }
+
+ /* Ok, now we have to open an actual file.
+ * Here is the reason:
+ * We want to write the spool job to this file in
+ * smbd for scalability reason (and also because
+ * apparently window printer drivers can seek when
+ * spooling to a file).
+ * So we first create a file, and then we pass it
+ * to spoolss in output_file so it can monitor and
+ * take over once we call EndDocPrinter().
+ * Of course we will not start writing until
+ * StartDocPrinter() actually gives the ok. */
+
+ pf->filename = talloc_asprintf(pf, "%s/%s.XXXXXX",
+ lp_pathname(SNUM(fsp->conn)),
+ PRINT_SPOOL_PREFIX);
+ if (!pf->filename) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ errno = 0;
+ fd = mkstemp(pf->filename);
+ if (fd == -1) {
+ if (errno == EACCES) {
+ /* Common setup error, force a report. */
+ DEBUG(0, ("Insufficient permissions "
+ "to open spool file %s.\n",
+ pf->filename));
+ } else {
+ /* Normal case, report at level 3 and above. */
+ DEBUG(3, ("can't open spool file %s,\n",
+ pf->filename));
+ DEBUGADD(3, ("errno = %d (%s).\n",
+ errno, strerror(errno)));
+ }
+ status = map_nt_error_from_unix(errno);
+ goto done;
+ }
+
+ /* now open a document over spoolss so that it does
+ * all printer verification, and eventually assigns
+ * a job id */
+
+ status = rpc_connect_spoolss_pipe(fsp->conn, &cli);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+
+ ZERO_STRUCT(devmode_ctr);
+
+ status = rpccli_spoolss_OpenPrinter(cli, pf, pf->svcname,
+ "RAW", devmode_ctr,
+ SEC_FLAG_MAXIMUM_ALLOWED,
+ &pf->handle, &werr);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+ if (!W_ERROR_IS_OK(werr)) {
+ status = werror_to_ntstatus(werr);
+ goto done;
+ }
+
+ info.info1 = talloc(tmp_ctx, struct spoolss_DocumentInfo1);
+ if (!info.info1) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ info.info1->document_name = pf->docname;
+ info.info1->output_file = pf->filename;
+ info.info1->datatype = "RAW";
+
+ status = rpccli_spoolss_StartDocPrinter(cli, tmp_ctx, &pf->handle,
+ 1, info, &pf->jobid, &werr);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+ if (!W_ERROR_IS_OK(werr)) {
+ status = werror_to_ntstatus(werr);
+ goto done;
+ }
+
+ /* Convert to RAP id. */
+ pf->rap_jobid = pjobid_to_rap(pf->svcname, pf->jobid);
+ if (pf->rap_jobid == 0) {
+ /* No errno around here */
+ status = NT_STATUS_ACCESS_DENIED;
+ goto done;
+ }
+
+ /* setup a full fsp */
+ status = create_synthetic_smb_fname(fsp, pf->filename, NULL,
+ NULL, &fsp->fsp_name);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+
+ if (sys_fstat(fd, &fsp->fsp_name->st, false) != 0) {
+ status = map_nt_error_from_unix(errno);
+ goto done;
+ }
+
+ fsp->file_id = vfs_file_id_from_sbuf(fsp->conn, &fsp->fsp_name->st);
+ fsp->mode = fsp->fsp_name->st.st_ex_mode;
+ fsp->fh->fd = fd;
+
+ fsp->vuid = current_vuid;
+ fsp->can_lock = false;
+ fsp->can_read = false;
+ fsp->access_mask = FILE_GENERIC_WRITE;
+ fsp->can_write = true;
+ fsp->modified = false;
+ fsp->oplock_type = NO_OPLOCK;
+ fsp->sent_oplock_break = NO_BREAK_SENT;
+ fsp->is_directory = false;
+
+ fsp->print_file = pf;
+
+ status = NT_STATUS_OK;
+done:
+ if (!NT_STATUS_IS_OK(status)) {
+ if (fd != -1) {
+ close(fd);
+ unlink(fsp->print_file->filename);
+ }
+ /* We need to delete the job from spoolss too */
+ if (pf->jobid) {
+ print_spool_terminate(fsp->conn, pf);
+ }
+ }
+ talloc_free(tmp_ctx);
+ return status;
+}
+
+int print_spool_write(files_struct *fsp, const char *data, uint32_t size,
+ SMB_OFF_T offset, uint32_t *written)
+{
+ SMB_STRUCT_STAT st;
+ ssize_t n;
+ int ret;
+
+ *written = 0;
+
+ /* first of all stat file to find out if it is still there.
+ * spoolss may have deleted it to signal someone has killed
+ * the job through it's interface */
+
+ if (sys_fstat(fsp->fh->fd, &st, false) != 0) {
+ ret = errno;
+ DEBUG(3, ("printfile_offset: sys_fstat failed on %s (%s)\n",
+ fsp_str_dbg(fsp), strerror(ret)));
+ return ret;
+ }
+
+ /* check if the file is unlinked, this will signal spoolss has
+ * killed it, just return an error and close the file */
+ if (st.st_ex_nlink == 0) {
+ close(fsp->fh->fd);
+ return EBADF;
+ }
+
+ /* When print files go beyond 4GB, the 32-bit offset sent in
+ * old SMBwrite calls is relative to the current 4GB chunk
+ * we're writing to.
+ * Discovered by Sebastian Kloska <oncaphillis@snafu.de>.
+ */
+ if (offset < 0xffffffff00000000LL) {
+ offset = (st.st_ex_size & 0xffffffff00000000LL) + offset;
+ }
+
+ n = write_data_at_offset(fsp->fh->fd, data, size, offset);
+ if (n == -1) {
+ ret = errno;
+ print_spool_terminate(fsp->conn, fsp->print_file);
+ } else {
+ *written = n;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+void print_spool_end(files_struct *fsp, enum file_close_type close_type)
+{
+ struct rpc_pipe_client *cli;
+ NTSTATUS status;
+ WERROR werr;
+
+ status = rpc_connect_spoolss_pipe(fsp->conn, &cli);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("print_spool_end: "
+ "Failed to get spoolss pipe [%s]\n",
+ nt_errstr(status)));
+ return;
+ }
+
+ switch (close_type) {
+ case NORMAL_CLOSE:
+ case SHUTDOWN_CLOSE:
+ status = rpccli_spoolss_ClosePrinter(cli, fsp->print_file,
+ &fsp->print_file->handle,
+ &werr);
+ if (!NT_STATUS_IS_OK(status) ||
+ !NT_STATUS_IS_OK(status = werror_to_ntstatus(werr))) {
+ DEBUG(3, ("Failed to close printer %s [%s]\n",
+ fsp->print_file->svcname, nt_errstr(status)));
+ }
+ break;
+ case ERROR_CLOSE:
+ print_spool_terminate(fsp->conn, fsp->print_file);
+ break;
+ }
+}
+
+
+void print_spool_terminate(struct connection_struct *conn,
+ struct print_file_data *print_file)
+{
+ struct rpc_pipe_client *cli;
+ NTSTATUS status;
+ WERROR werr;
+
+ rap_jobid_delete(print_file->svcname, print_file->jobid);
+
+ status = rpc_connect_spoolss_pipe(conn, &cli);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("print_spool_terminate: "
+ "Failed to get spoolss pipe [%s]\n",
+ nt_errstr(status)));
+ return;
+ }
+
+ status = rpccli_spoolss_SetJob(cli, print_file,
+ &print_file->handle,
+ print_file->jobid,
+ NULL, SPOOLSS_JOB_CONTROL_DELETE,
+ &werr);
+ if (!NT_STATUS_IS_OK(status) ||
+ !NT_STATUS_IS_OK(status = werror_to_ntstatus(werr))) {
+ DEBUG(3, ("Failed to delete job %d [%s]\n",
+ print_file->jobid, nt_errstr(status)));
+ return;
+ }
+ status = rpccli_spoolss_ClosePrinter(cli, print_file,
+ &print_file->handle,
+ &werr);
+ if (!NT_STATUS_IS_OK(status) ||
+ !NT_STATUS_IS_OK(status = werror_to_ntstatus(werr))) {
+ DEBUG(3, ("Failed to close printer %s [%s]\n",
+ print_file->svcname, nt_errstr(status)));
+ return;
+ }
+}
git.samba.org / mat / samba.git / commitdiff