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https://github.com/samba-team/samba.git
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4286e147a6
Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Garming Sam <garming@catalyst.net.nz>
635 lines
16 KiB
C
635 lines
16 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* RPC Pipe client / server routines
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* Copyright (C) Andrew Tridgell 1992-2000,
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* Copyright (C) Jean François Micouleau 1998-2000.
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* Copyright (C) Gerald Carter 2002-2005.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "../librpc/gen_ndr/spoolss.h"
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#include "rpc_server/spoolss/srv_spoolss_util.h"
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#include "nt_printing.h"
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#include "ads.h"
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#include "secrets.h"
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#include "krb5_env.h"
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#include "../libcli/registry/util_reg.h"
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#include "auth.h"
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#include "../librpc/ndr/libndr.h"
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#include "rpc_client/cli_winreg_spoolss.h"
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#ifdef HAVE_ADS
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/*****************************************************************
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****************************************************************/
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static void store_printer_guid(struct messaging_context *msg_ctx,
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const char *printer, struct GUID guid)
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{
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TALLOC_CTX *tmp_ctx;
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struct auth_session_info *session_info = NULL;
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const char *guid_str;
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DATA_BLOB blob;
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NTSTATUS status;
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WERROR result;
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tmp_ctx = talloc_new(NULL);
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if (!tmp_ctx) {
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DEBUG(0, ("store_printer_guid: Out of memory?!\n"));
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return;
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}
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status = make_session_info_system(tmp_ctx, &session_info);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0, ("store_printer_guid: "
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"Could not create system session_info\n"));
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goto done;
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}
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guid_str = GUID_string(tmp_ctx, &guid);
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if (!guid_str) {
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DEBUG(0, ("store_printer_guid: Out of memory?!\n"));
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goto done;
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}
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/* We used to store this as a REG_BINARY but that causes
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Vista to whine */
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if (!push_reg_sz(tmp_ctx, &blob, guid_str)) {
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DEBUG(0, ("store_printer_guid: "
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"Could not marshall string %s for objectGUID\n",
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guid_str));
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goto done;
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}
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result = winreg_set_printer_dataex_internal(tmp_ctx, session_info, msg_ctx,
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printer,
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SPOOL_DSSPOOLER_KEY, "objectGUID",
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REG_SZ, blob.data, blob.length);
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if (!W_ERROR_IS_OK(result)) {
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DEBUG(0, ("store_printer_guid: "
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"Failed to store GUID for printer %s\n", printer));
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}
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done:
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talloc_free(tmp_ctx);
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}
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WERROR nt_printer_guid_get(TALLOC_CTX *mem_ctx,
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const struct auth_session_info *session_info,
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struct messaging_context *msg_ctx,
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const char *printer, struct GUID *guid)
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{
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TALLOC_CTX *tmp_ctx;
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enum winreg_Type type;
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DATA_BLOB blob;
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uint32_t len;
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NTSTATUS status;
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WERROR result;
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tmp_ctx = talloc_new(mem_ctx);
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if (tmp_ctx == NULL) {
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DEBUG(0, ("out of memory?!\n"));
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return WERR_NOMEM;
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}
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result = winreg_get_printer_dataex_internal(tmp_ctx, session_info,
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msg_ctx, printer,
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SPOOL_DSSPOOLER_KEY,
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"objectGUID",
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&type,
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&blob.data,
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&len);
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if (!W_ERROR_IS_OK(result)) {
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DEBUG(0, ("Failed to get GUID for printer %s\n", printer));
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goto out_ctx_free;
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}
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blob.length = (size_t)len;
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/* We used to store the guid as REG_BINARY, then swapped
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to REG_SZ for Vista compatibility so check for both */
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switch (type) {
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case REG_SZ: {
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bool ok;
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const char *guid_str;
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ok = pull_reg_sz(tmp_ctx, &blob, &guid_str);
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if (!ok) {
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DEBUG(0, ("Failed to unmarshall GUID for printer %s\n",
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printer));
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result = WERR_REG_CORRUPT;
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goto out_ctx_free;
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}
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status = GUID_from_string(guid_str, guid);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0, ("bad GUID for printer %s\n", printer));
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result = ntstatus_to_werror(status);
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goto out_ctx_free;
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}
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break;
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}
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case REG_BINARY:
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if (blob.length != sizeof(struct GUID)) {
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DEBUG(0, ("bad GUID for printer %s\n", printer));
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result = WERR_REG_CORRUPT;
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goto out_ctx_free;
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}
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memcpy(guid, blob.data, sizeof(struct GUID));
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break;
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default:
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DEBUG(0,("GUID value stored as invalid type (%d)\n", type));
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result = WERR_REG_CORRUPT;
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goto out_ctx_free;
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break;
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}
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result = WERR_OK;
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out_ctx_free:
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talloc_free(tmp_ctx);
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return result;
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}
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static WERROR nt_printer_info_to_mods(TALLOC_CTX *ctx,
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struct spoolss_PrinterInfo2 *info2,
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ADS_MODLIST *mods)
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{
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char *info_str;
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTERNAME, info2->sharename);
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ads_mod_str(ctx, mods, SPOOL_REG_SHORTSERVERNAME, lp_netbios_name());
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ads_mod_str(ctx, mods, SPOOL_REG_SERVERNAME, get_mydnsfullname());
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info_str = talloc_asprintf(ctx, "\\\\%s\\%s",
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get_mydnsfullname(), info2->sharename);
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if (info_str == NULL) {
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return WERR_NOMEM;
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}
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ads_mod_str(ctx, mods, SPOOL_REG_UNCNAME, info_str);
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info_str = talloc_asprintf(ctx, "%d", 4);
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if (info_str == NULL) {
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return WERR_NOMEM;
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}
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ads_mod_str(ctx, mods, SPOOL_REG_VERSIONNUMBER, info_str);
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/* empty strings in the mods list result in an attrubute error */
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if (strlen(info2->drivername) != 0)
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ads_mod_str(ctx, mods, SPOOL_REG_DRIVERNAME, info2->drivername);
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if (strlen(info2->location) != 0)
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ads_mod_str(ctx, mods, SPOOL_REG_LOCATION, info2->location);
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if (strlen(info2->comment) != 0)
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ads_mod_str(ctx, mods, SPOOL_REG_DESCRIPTION, info2->comment);
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if (strlen(info2->portname) != 0)
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ads_mod_str(ctx, mods, SPOOL_REG_PORTNAME, info2->portname);
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if (strlen(info2->sepfile) != 0)
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTSEPARATORFILE, info2->sepfile);
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info_str = talloc_asprintf(ctx, "%u", info2->starttime);
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if (info_str == NULL) {
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return WERR_NOMEM;
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}
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTSTARTTIME, info_str);
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info_str = talloc_asprintf(ctx, "%u", info2->untiltime);
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if (info_str == NULL) {
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return WERR_NOMEM;
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}
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTENDTIME, info_str);
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info_str = talloc_asprintf(ctx, "%u", info2->priority);
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if (info_str == NULL) {
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return WERR_NOMEM;
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}
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ads_mod_str(ctx, mods, SPOOL_REG_PRIORITY, info_str);
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if (info2->attributes & PRINTER_ATTRIBUTE_KEEPPRINTEDJOBS) {
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTKEEPPRINTEDJOBS, "TRUE");
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} else {
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTKEEPPRINTEDJOBS, "FALSE");
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}
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switch (info2->attributes & 0x3) {
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case 0:
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTSPOOLING,
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SPOOL_REGVAL_PRINTWHILESPOOLING);
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break;
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case 1:
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTSPOOLING,
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SPOOL_REGVAL_PRINTAFTERSPOOLED);
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break;
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case 2:
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ads_mod_str(ctx, mods, SPOOL_REG_PRINTSPOOLING,
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SPOOL_REGVAL_PRINTDIRECT);
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break;
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default:
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DEBUG(3, ("unsupported printer attributes %x\n",
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info2->attributes));
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}
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return WERR_OK;
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}
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static WERROR nt_printer_publish_ads(struct messaging_context *msg_ctx,
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ADS_STRUCT *ads,
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struct spoolss_PrinterInfo2 *pinfo2)
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{
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ADS_STATUS ads_rc;
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LDAPMessage *res;
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char *prt_dn = NULL, *srv_dn, *srv_cn_0, *srv_cn_escaped, *sharename_escaped;
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char *srv_dn_utf8, **srv_cn_utf8;
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TALLOC_CTX *ctx;
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ADS_MODLIST mods;
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const char *attrs[] = {"objectGUID", NULL};
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struct GUID guid;
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WERROR win_rc = WERR_OK;
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size_t converted_size;
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const char *printer = pinfo2->sharename;
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/* build the ads mods */
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ctx = talloc_init("nt_printer_publish_ads");
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if (ctx == NULL) {
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return WERR_NOMEM;
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}
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DEBUG(5, ("publishing printer %s\n", printer));
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/* figure out where to publish */
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ads_rc = ads_find_machine_acct(ads, &res, lp_netbios_name());
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if (!ADS_ERR_OK(ads_rc)) {
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DEBUG(0, ("failed to find machine account for %s\n",
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lp_netbios_name()));
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TALLOC_FREE(ctx);
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return WERR_NOT_FOUND;
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}
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/* We use ldap_get_dn here as we need the answer
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* in utf8 to call ldap_explode_dn(). JRA. */
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srv_dn_utf8 = ldap_get_dn((LDAP *)ads->ldap.ld, (LDAPMessage *)res);
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ads_msgfree(ads, res);
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if (!srv_dn_utf8) {
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TALLOC_FREE(ctx);
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return WERR_SERVER_UNAVAILABLE;
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}
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srv_cn_utf8 = ldap_explode_dn(srv_dn_utf8, 1);
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if (!srv_cn_utf8) {
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TALLOC_FREE(ctx);
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ldap_memfree(srv_dn_utf8);
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return WERR_SERVER_UNAVAILABLE;
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}
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/* Now convert to CH_UNIX. */
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if (!pull_utf8_talloc(ctx, &srv_dn, srv_dn_utf8, &converted_size)) {
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TALLOC_FREE(ctx);
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ldap_memfree(srv_dn_utf8);
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ldap_memfree(srv_cn_utf8);
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return WERR_SERVER_UNAVAILABLE;
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}
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if (!pull_utf8_talloc(ctx, &srv_cn_0, srv_cn_utf8[0], &converted_size)) {
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TALLOC_FREE(ctx);
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ldap_memfree(srv_dn_utf8);
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ldap_memfree(srv_cn_utf8);
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TALLOC_FREE(srv_dn);
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return WERR_SERVER_UNAVAILABLE;
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}
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ldap_memfree(srv_dn_utf8);
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ldap_memfree(srv_cn_utf8);
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srv_cn_escaped = escape_rdn_val_string_alloc(srv_cn_0);
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if (!srv_cn_escaped) {
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TALLOC_FREE(ctx);
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return WERR_SERVER_UNAVAILABLE;
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}
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sharename_escaped = escape_rdn_val_string_alloc(printer);
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if (!sharename_escaped) {
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SAFE_FREE(srv_cn_escaped);
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TALLOC_FREE(ctx);
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return WERR_SERVER_UNAVAILABLE;
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}
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prt_dn = talloc_asprintf(ctx, "cn=%s-%s,%s", srv_cn_escaped, sharename_escaped, srv_dn);
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SAFE_FREE(srv_cn_escaped);
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SAFE_FREE(sharename_escaped);
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mods = ads_init_mods(ctx);
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if (mods == NULL) {
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TALLOC_FREE(ctx);
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return WERR_NOMEM;
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}
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win_rc = nt_printer_info_to_mods(ctx, pinfo2, &mods);
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if (!W_ERROR_IS_OK(win_rc)) {
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TALLOC_FREE(ctx);
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return win_rc;
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}
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/* publish it */
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ads_rc = ads_mod_printer_entry(ads, prt_dn, ctx, &mods);
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if (ads_rc.err.rc == LDAP_NO_SUCH_OBJECT) {
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int i;
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for (i=0; mods[i] != 0; i++)
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;
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mods[i] = (LDAPMod *)-1;
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ads_rc = ads_add_printer_entry(ads, prt_dn, ctx, &mods);
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}
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if (!ADS_ERR_OK(ads_rc)) {
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DEBUG(3, ("error publishing %s: %s\n",
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printer, ads_errstr(ads_rc)));
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}
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/* retreive the guid and store it locally */
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if (ADS_ERR_OK(ads_search_dn(ads, &res, prt_dn, attrs))) {
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bool guid_ok;
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ZERO_STRUCT(guid);
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guid_ok = ads_pull_guid(ads, res, &guid);
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ads_msgfree(ads, res);
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if (guid_ok) {
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store_printer_guid(msg_ctx, printer, guid);
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}
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}
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TALLOC_FREE(ctx);
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return win_rc;
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}
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static WERROR nt_printer_unpublish_ads(ADS_STRUCT *ads,
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const char *printer)
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{
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ADS_STATUS ads_rc;
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LDAPMessage *res = NULL;
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char *prt_dn = NULL;
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DEBUG(5, ("unpublishing printer %s\n", printer));
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/* remove the printer from the directory */
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ads_rc = ads_find_printer_on_server(ads, &res,
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printer, lp_netbios_name());
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if (ADS_ERR_OK(ads_rc) && res && ads_count_replies(ads, res)) {
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prt_dn = ads_get_dn(ads, talloc_tos(), res);
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if (!prt_dn) {
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ads_msgfree(ads, res);
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return WERR_NOMEM;
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}
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ads_rc = ads_del_dn(ads, prt_dn);
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TALLOC_FREE(prt_dn);
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}
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if (res) {
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ads_msgfree(ads, res);
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}
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return WERR_OK;
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}
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/****************************************************************************
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* Publish a printer in the directory
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*
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* @param mem_ctx memory context
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* @param session_info session_info to access winreg pipe
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* @param pinfo2 printer information
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* @param action publish/unpublish action
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* @return WERROR indicating status of publishing
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***************************************************************************/
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WERROR nt_printer_publish(TALLOC_CTX *mem_ctx,
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const struct auth_session_info *session_info,
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struct messaging_context *msg_ctx,
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struct spoolss_PrinterInfo2 *pinfo2,
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int action)
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{
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uint32_t info2_mask = SPOOLSS_PRINTER_INFO_ATTRIBUTES;
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struct spoolss_SetPrinterInfo2 *sinfo2;
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ADS_STATUS ads_rc;
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ADS_STRUCT *ads = NULL;
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WERROR win_rc;
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char *old_krb5ccname = NULL;
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sinfo2 = talloc_zero(mem_ctx, struct spoolss_SetPrinterInfo2);
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if (!sinfo2) {
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return WERR_NOMEM;
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}
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switch (action) {
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case DSPRINT_PUBLISH:
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case DSPRINT_UPDATE:
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pinfo2->attributes |= PRINTER_ATTRIBUTE_PUBLISHED;
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break;
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case DSPRINT_UNPUBLISH:
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pinfo2->attributes &= (~PRINTER_ATTRIBUTE_PUBLISHED);
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break;
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default:
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win_rc = WERR_NOT_SUPPORTED;
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goto done;
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}
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sinfo2->attributes = pinfo2->attributes;
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win_rc = winreg_update_printer_internal(mem_ctx, session_info, msg_ctx,
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pinfo2->sharename, info2_mask,
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sinfo2, NULL, NULL);
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if (!W_ERROR_IS_OK(win_rc)) {
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DEBUG(3, ("err %d saving data\n", W_ERROR_V(win_rc)));
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goto done;
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}
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TALLOC_FREE(sinfo2);
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ads = ads_init(lp_realm(), lp_workgroup(), NULL);
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if (!ads) {
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DEBUG(3, ("ads_init() failed\n"));
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win_rc = WERR_SERVER_UNAVAILABLE;
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goto done;
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}
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old_krb5ccname = getenv(KRB5_ENV_CCNAME);
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setenv(KRB5_ENV_CCNAME, "MEMORY:prtpub_cache", 1);
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SAFE_FREE(ads->auth.password);
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ads->auth.password = secrets_fetch_machine_password(lp_workgroup(),
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NULL, NULL);
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/* ads_connect() will find the DC for us */
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ads_rc = ads_connect(ads);
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if (!ADS_ERR_OK(ads_rc)) {
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DEBUG(3, ("ads_connect failed: %s\n", ads_errstr(ads_rc)));
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win_rc = WERR_ACCESS_DENIED;
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goto done;
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}
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switch (action) {
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case DSPRINT_PUBLISH:
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case DSPRINT_UPDATE:
|
|
win_rc = nt_printer_publish_ads(msg_ctx, ads, pinfo2);
|
|
break;
|
|
case DSPRINT_UNPUBLISH:
|
|
win_rc = nt_printer_unpublish_ads(ads, pinfo2->sharename);
|
|
break;
|
|
}
|
|
|
|
done:
|
|
ads_destroy(&ads);
|
|
ads_kdestroy("MEMORY:prtpub_cache");
|
|
unsetenv(KRB5_ENV_CCNAME);
|
|
if (old_krb5ccname) {
|
|
setenv(KRB5_ENV_CCNAME, old_krb5ccname, 0);
|
|
}
|
|
return win_rc;
|
|
}
|
|
|
|
WERROR check_published_printers(struct messaging_context *msg_ctx)
|
|
{
|
|
ADS_STATUS ads_rc;
|
|
ADS_STRUCT *ads = NULL;
|
|
int snum;
|
|
int n_services = lp_numservices();
|
|
TALLOC_CTX *tmp_ctx = NULL;
|
|
struct auth_session_info *session_info = NULL;
|
|
struct spoolss_PrinterInfo2 *pinfo2;
|
|
NTSTATUS status;
|
|
WERROR result;
|
|
char *old_krb5ccname = NULL;
|
|
|
|
tmp_ctx = talloc_new(NULL);
|
|
if (!tmp_ctx) return WERR_NOMEM;
|
|
|
|
ads = ads_init(lp_realm(), lp_workgroup(), NULL);
|
|
if (!ads) {
|
|
DEBUG(3, ("ads_init() failed\n"));
|
|
return WERR_SERVER_UNAVAILABLE;
|
|
}
|
|
old_krb5ccname = getenv(KRB5_ENV_CCNAME);
|
|
setenv(KRB5_ENV_CCNAME, "MEMORY:prtpub_cache", 1);
|
|
SAFE_FREE(ads->auth.password);
|
|
ads->auth.password = secrets_fetch_machine_password(lp_workgroup(),
|
|
NULL, NULL);
|
|
|
|
/* ads_connect() will find the DC for us */
|
|
ads_rc = ads_connect(ads);
|
|
if (!ADS_ERR_OK(ads_rc)) {
|
|
DEBUG(3, ("ads_connect failed: %s\n", ads_errstr(ads_rc)));
|
|
result = WERR_ACCESS_DENIED;
|
|
goto done;
|
|
}
|
|
|
|
status = make_session_info_system(tmp_ctx, &session_info);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0, ("check_published_printers: "
|
|
"Could not create system session_info\n"));
|
|
result = WERR_ACCESS_DENIED;
|
|
goto done;
|
|
}
|
|
|
|
for (snum = 0; snum < n_services; snum++) {
|
|
if (!lp_snum_ok(snum) || !lp_printable(snum)) {
|
|
continue;
|
|
}
|
|
|
|
result = winreg_get_printer_internal(tmp_ctx, session_info, msg_ctx,
|
|
lp_servicename(talloc_tos(), snum),
|
|
&pinfo2);
|
|
if (!W_ERROR_IS_OK(result)) {
|
|
continue;
|
|
}
|
|
|
|
if (pinfo2->attributes & PRINTER_ATTRIBUTE_PUBLISHED) {
|
|
nt_printer_publish_ads(msg_ctx, ads, pinfo2);
|
|
}
|
|
|
|
TALLOC_FREE(pinfo2);
|
|
}
|
|
|
|
result = WERR_OK;
|
|
done:
|
|
ads_destroy(&ads);
|
|
ads_kdestroy("MEMORY:prtpub_cache");
|
|
unsetenv(KRB5_ENV_CCNAME);
|
|
if (old_krb5ccname) {
|
|
setenv(KRB5_ENV_CCNAME, old_krb5ccname, 0);
|
|
}
|
|
talloc_free(tmp_ctx);
|
|
return result;
|
|
}
|
|
|
|
bool is_printer_published(TALLOC_CTX *mem_ctx,
|
|
const struct auth_session_info *session_info,
|
|
struct messaging_context *msg_ctx,
|
|
const char *servername,
|
|
const char *printer,
|
|
struct spoolss_PrinterInfo2 **info2)
|
|
{
|
|
struct spoolss_PrinterInfo2 *pinfo2 = NULL;
|
|
WERROR result;
|
|
struct dcerpc_binding_handle *b;
|
|
|
|
result = winreg_printer_binding_handle(mem_ctx,
|
|
session_info,
|
|
msg_ctx,
|
|
&b);
|
|
if (!W_ERROR_IS_OK(result)) {
|
|
return false;
|
|
}
|
|
|
|
result = winreg_get_printer(mem_ctx, b,
|
|
printer, &pinfo2);
|
|
if (!W_ERROR_IS_OK(result)) {
|
|
return false;
|
|
}
|
|
|
|
if (!(pinfo2->attributes & PRINTER_ATTRIBUTE_PUBLISHED)) {
|
|
TALLOC_FREE(pinfo2);
|
|
return false;
|
|
}
|
|
|
|
if (info2) {
|
|
*info2 = talloc_move(mem_ctx, &pinfo2);
|
|
}
|
|
talloc_free(pinfo2);
|
|
return true;
|
|
}
|
|
#else
|
|
WERROR nt_printer_guid_get(TALLOC_CTX *mem_ctx,
|
|
const struct auth_session_info *session_info,
|
|
struct messaging_context *msg_ctx,
|
|
const char *printer, struct GUID *guid)
|
|
{
|
|
return WERR_NOT_SUPPORTED;
|
|
}
|
|
|
|
WERROR nt_printer_publish(TALLOC_CTX *mem_ctx,
|
|
const struct auth_session_info *session_info,
|
|
struct messaging_context *msg_ctx,
|
|
struct spoolss_PrinterInfo2 *pinfo2,
|
|
int action)
|
|
{
|
|
return WERR_OK;
|
|
}
|
|
|
|
WERROR check_published_printers(struct messaging_context *msg_ctx)
|
|
{
|
|
return WERR_OK;
|
|
}
|
|
|
|
bool is_printer_published(TALLOC_CTX *mem_ctx,
|
|
const struct auth_session_info *session_info,
|
|
struct messaging_context *msg_ctx,
|
|
const char *servername,
|
|
const char *printer,
|
|
struct spoolss_PrinterInfo2 **info2)
|
|
{
|
|
return False;
|
|
}
|
|
#endif /* HAVE_ADS */
|