--- /dev/null
+
+/*
+ * XML password backend for samba
+ * Copyright (C) Jelmer Vernooij 2002
+ * Some parts based on the libxml gjobread example by Daniel Veillard
+ *
+ * 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 2 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, write to the Free Software Foundation, Inc., 675
+ * Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* FIXME:
+ * - Support stdin input by using '-'
+ * - Be faster. Don't rewrite the whole file when adding a user, but store it in the memory and save it when exiting. Requires changes to samba source.
+ * - Gives the ability to read/write to standard input/output
+ * - Do locking!
+ * - Better names!
+ */
+
+
+#define XML_URL "http://samba.org/samba/DTD/passdb"
+
+#include "includes.h"
+
+#include <libxml/xmlmemory.h>
+#include <libxml/parser.h>
+
+static int xmlsam_debug_level = DBGC_ALL;
+
+#undef DBGC_CLASS
+#define DBGC_CLASS xmlsam_debug_level
+
+
+/* Helper utilities for charset conversion */
+static xmlNodePtr smbXmlNewChild(xmlNodePtr prnt, xmlNsPtr ns, const xmlChar *name, const char *content)
+{
+ char *string_utf8;
+ xmlNodePtr ret;
+
+ if(!content) return xmlNewChild(prnt, ns, name, NULL);
+
+
+ if(push_utf8_allocate(&string_utf8,content) == (size_t)-1)
+ return NULL;
+
+ ret = xmlNewTextChild(prnt, ns, name, string_utf8);
+
+ SAFE_FREE(string_utf8);
+
+ return ret;
+}
+
+
+static char * iota(int a) {
+ static char tmp[10];
+
+ snprintf(tmp, 9, "%d", a);
+ return tmp;
+}
+
+static BOOL parsePass(xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur, SAM_ACCOUNT * u)
+{
+ pstring temp;
+
+ cur = cur->xmlChildrenNode;
+ while (cur != NULL) {
+ if (strcmp(cur->name, "crypt"))
+ DEBUG(0, ("Unknown element %s\n", cur->name));
+ else {
+ if (!strcmp(xmlGetProp(cur, "type"), "nt")
+ &&
+ pdb_gethexpwd(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1), temp))
+ pdb_set_nt_passwd(u, temp, PDB_SET);
+ else if (!strcmp(xmlGetProp(cur, "type"), "lanman")
+ &&
+ pdb_gethexpwd(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1), temp))
+ pdb_set_lanman_passwd(u, temp, PDB_SET);
+ else
+ DEBUG(0,
+ ("Unknown crypt type: %s\n",
+ xmlGetProp(cur, "type")));
+ }
+ cur = cur->next;
+ }
+ return True;
+}
+
+static BOOL parseUser(xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur, SAM_ACCOUNT * u)
+{
+ char *tmp;
+ DOM_SID sid;
+
+ tmp = xmlGetProp(cur, "sid");
+ if (tmp){
+ string_to_sid(&sid, tmp);
+ pdb_set_user_sid(u, &sid, PDB_SET);
+ }
+ pdb_set_username(u, xmlGetProp(cur, "name"), PDB_SET);
+ /* We don't care what the top level element name is */
+ cur = cur->xmlChildrenNode;
+ while (cur != NULL) {
+ if ((!strcmp(cur->name, "group")) && (cur->ns == ns)) {
+ tmp = xmlGetProp(cur, "sid");
+ if (tmp){
+ string_to_sid(&sid, tmp);
+ pdb_set_group_sid(u, &sid, PDB_SET);
+ }
+ }
+
+ else if ((!strcmp(cur->name, "domain")) && (cur->ns == ns))
+ pdb_set_domain(u,
+ xmlNodeListGetString(doc, cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "fullname") && cur->ns == ns)
+ pdb_set_fullname(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "nt_username") && cur->ns == ns)
+ pdb_set_nt_username(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "logon_script") && cur->ns == ns)
+ pdb_set_logon_script(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "profile_path") && cur->ns == ns)
+ pdb_set_profile_path(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "logon_time") && cur->ns == ns)
+ pdb_set_logon_time(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)), PDB_SET);
+
+ else if (!strcmp(cur->name, "logoff_time") && cur->ns == ns)
+ pdb_set_logoff_time(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)),
+ PDB_SET);
+
+ else if (!strcmp(cur->name, "kickoff_time") && cur->ns == ns)
+ pdb_set_kickoff_time(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)),
+ PDB_SET);
+
+ else if (!strcmp(cur->name, "logon_divs") && cur->ns == ns)
+ pdb_set_logon_divs(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)), PDB_SET);
+
+ else if (!strcmp(cur->name, "hours_len") && cur->ns == ns)
+ pdb_set_hours_len(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)), PDB_SET);
+
+ else if (!strcmp(cur->name, "bad_password_count") && cur->ns == ns)
+ pdb_set_bad_password_count(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)), PDB_SET);
+
+ else if (!strcmp(cur->name, "logon_count") && cur->ns == ns)
+ pdb_set_logon_count(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)), PDB_SET);
+
+ else if (!strcmp(cur->name, "unknown_6") && cur->ns == ns)
+ pdb_set_unknown_6(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)), PDB_SET);
+
+ else if (!strcmp(cur->name, "homedir") && cur->ns == ns)
+ pdb_set_homedir(u,
+ xmlNodeListGetString(doc, cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "unknown_str") && cur->ns == ns)
+ pdb_set_unknown_str(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "dir_drive") && cur->ns == ns)
+ pdb_set_dir_drive(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "munged_dial") && cur->ns == ns)
+ pdb_set_munged_dial(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "acct_desc") && cur->ns == ns)
+ pdb_set_acct_desc(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if (!strcmp(cur->name, "acct_ctrl") && cur->ns == ns)
+ pdb_set_acct_ctrl(u,
+ atol(xmlNodeListGetString
+ (doc, cur->xmlChildrenNode, 1)), PDB_SET);
+
+ else if (!strcmp(cur->name, "workstations") && cur->ns == ns)
+ pdb_set_workstations(u,
+ xmlNodeListGetString(doc,
+ cur->xmlChildrenNode,
+ 1), PDB_SET);
+
+ else if ((!strcmp(cur->name, "password")) && (cur->ns == ns)) {
+ tmp = xmlGetProp(cur, "last_set");
+ if (tmp)
+ pdb_set_pass_last_set_time(u, atol(tmp), PDB_SET);
+ tmp = xmlGetProp(cur, "must_change");
+ if (tmp)
+ pdb_set_pass_must_change_time(u, atol(tmp), PDB_SET);
+ tmp = xmlGetProp(cur, "can_change");
+ if (tmp)
+ pdb_set_pass_can_change_time(u, atol(tmp), PDB_SET);
+ parsePass(doc, ns, cur, u);
+ }
+
+ else
+ DEBUG(0, ("Unknown element %s\n", cur->name));
+ cur = cur->next;
+ }
+
+ return True;
+}
+
+typedef struct pdb_xml {
+ char *location;
+ char written;
+ xmlDocPtr doc;
+ xmlNodePtr users;
+ xmlNodePtr pwent;
+ xmlNsPtr ns;
+} pdb_xml;
+
+static xmlNodePtr parseSambaXMLFile(struct pdb_xml *data)
+{
+ xmlNodePtr cur;
+
+ data->doc = xmlParseFile(data->location);
+ if (data->doc == NULL)
+ return NULL;
+
+ cur = xmlDocGetRootElement(data->doc);
+ if (!cur) {
+ DEBUG(0, ("empty document\n"));
+ xmlFreeDoc(data->doc);
+ return NULL;
+ }
+ data->ns = xmlSearchNsByHref(data->doc, cur, XML_URL);
+ if (!data->ns) {
+ DEBUG(0,
+ ("document of the wrong type, samba user namespace not found\n"));
+ xmlFreeDoc(data->doc);
+ return NULL;
+ }
+ if (strcmp(cur->name, "samba")) {
+ DEBUG(0, ("document of the wrong type, root node != samba"));
+ xmlFreeDoc(data->doc);
+ return NULL;
+ }
+
+ cur = cur->xmlChildrenNode;
+ while (cur && xmlIsBlankNode(cur)) {
+ cur = cur->next;
+ }
+ if (!cur)
+ return NULL;
+ if ((strcmp(cur->name, "users")) || (cur->ns != data->ns)) {
+ DEBUG(0, ("document of the wrong type, was '%s', users expected",
+ cur->name));
+ DEBUG(0, ("xmlDocDump follows\n"));
+ xmlDocDump(stderr, data->doc);
+ DEBUG(0, ("xmlDocDump finished\n"));
+ xmlFreeDoc(data->doc);
+ return NULL;
+ }
+ data->users = cur;
+ cur = cur->xmlChildrenNode;
+ return cur;
+}
+
+static NTSTATUS xmlsam_setsampwent(struct pdb_methods *methods, BOOL update, uint16 acb_mask)
+{
+ pdb_xml *data;
+
+ if (!methods) {
+ DEBUG(0, ("Invalid methods\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ data = (pdb_xml *) methods->private_data;
+ if (!data) {
+ DEBUG(0, ("Invalid pdb_xml_data\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ data->pwent = parseSambaXMLFile(data);
+ if (!data->pwent)
+ return NT_STATUS_UNSUCCESSFUL;
+
+ return NT_STATUS_OK;
+}
+
+/***************************************************************
+ End enumeration of the passwd list.
+ ****************************************************************/
+
+static void xmlsam_endsampwent(struct pdb_methods *methods)
+{
+ pdb_xml *data;
+
+ if (!methods) {
+ DEBUG(0, ("Invalid methods\n"));
+ return;
+ }
+
+ data = (pdb_xml *) methods->private_data;
+
+ if (!data) {
+ DEBUG(0, ("Invalid pdb_xml_data\n"));
+ return;
+ }
+
+ xmlFreeDoc(data->doc);
+ data->doc = NULL;
+ data->pwent = NULL;
+}
+
+/*****************************************************************
+ Get one SAM_ACCOUNT from the list (next in line)
+ *****************************************************************/
+
+static NTSTATUS xmlsam_getsampwent(struct pdb_methods *methods, SAM_ACCOUNT * user)
+{
+ pdb_xml *data;
+
+ if (!methods) {
+ DEBUG(0, ("Invalid methods\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ data = (pdb_xml *) methods->private_data;
+
+ if (!data) {
+ DEBUG(0, ("Invalid pdb_xml_data\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ while (data->pwent) {
+ if ((!strcmp(data->pwent->name, "user")) &&
+ (data->pwent->ns == data->ns)) {
+
+ parseUser(data->doc, data->ns, data->pwent, user);
+ data->pwent = data->pwent->next;
+ return NT_STATUS_OK;
+ }
+ data->pwent = data->pwent->next;
+ }
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+/***************************************************************************
+ Adds an existing SAM_ACCOUNT
+ ****************************************************************************/
+
+static NTSTATUS xmlsam_add_sam_account(struct pdb_methods *methods, SAM_ACCOUNT * u)
+{
+ pstring temp;
+ fstring sid_str;
+ xmlNodePtr cur, user, pass, root;
+ pdb_xml *data;
+
+ DEBUG(10, ("xmlsam_add_sam_account called!\n"));
+
+ if (!methods) {
+ DEBUG(0, ("Invalid methods\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ data = (pdb_xml *) methods->private_data;
+ if (!data) {
+ DEBUG(0, ("Invalid pdb_xml_data\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* Create a new document if we can't open the current one */
+ if (!parseSambaXMLFile(data)) {
+ DEBUG(0, ("Can't load current XML file, creating a new one\n"));
+ data->doc = xmlNewDoc(XML_DEFAULT_VERSION);
+ root = xmlNewDocNode(data->doc, NULL, "samba", NULL);
+ cur = xmlDocSetRootElement(data->doc, root);
+ data->ns = xmlNewNs(root, XML_URL, "samba");
+ data->users = smbXmlNewChild(root, data->ns, "users", NULL);
+ }
+
+ user = smbXmlNewChild(data->users, data->ns, "user", NULL);
+ xmlNewProp(user, "sid",
+ sid_to_string(sid_str, pdb_get_user_sid(u)));
+
+ if (pdb_get_username(u) && strcmp(pdb_get_username(u), ""))
+ xmlNewProp(user, "name", pdb_get_username(u));
+
+ cur = smbXmlNewChild(user, data->ns, "group", NULL);
+
+ xmlNewProp(cur, "sid",
+ sid_to_string(sid_str, pdb_get_group_sid(u)));
+
+ if (pdb_get_init_flags(u, PDB_LOGONTIME) != PDB_DEFAULT)
+ smbXmlNewChild(user, data->ns, "logon_time",
+ iota(pdb_get_logon_time(u)));
+
+ if (pdb_get_init_flags(u, PDB_LOGOFFTIME) != PDB_DEFAULT)
+ smbXmlNewChild(user, data->ns, "logoff_time",
+ iota(pdb_get_logoff_time(u)));
+
+ if (pdb_get_init_flags(u, PDB_KICKOFFTIME) != PDB_DEFAULT)
+ smbXmlNewChild(user, data->ns, "kickoff_time",
+ iota(pdb_get_kickoff_time(u)));
+
+ if (pdb_get_domain(u) && strcmp(pdb_get_domain(u), ""))
+ smbXmlNewChild(user, data->ns, "domain", pdb_get_domain(u));
+
+ if (pdb_get_nt_username(u) && strcmp(pdb_get_nt_username(u), ""))
+ smbXmlNewChild(user, data->ns, "nt_username", pdb_get_nt_username(u));
+
+ if (pdb_get_fullname(u) && strcmp(pdb_get_fullname(u), ""))
+ smbXmlNewChild(user, data->ns, "fullname", pdb_get_fullname(u));
+
+ if (pdb_get_homedir(u) && strcmp(pdb_get_homedir(u), ""))
+ smbXmlNewChild(user, data->ns, "homedir", pdb_get_homedir(u));
+
+ if (pdb_get_dir_drive(u) && strcmp(pdb_get_dir_drive(u), ""))
+ smbXmlNewChild(user, data->ns, "dir_drive", pdb_get_dir_drive(u));
+
+ if (pdb_get_logon_script(u) && strcmp(pdb_get_logon_script(u), ""))
+ smbXmlNewChild(user, data->ns, "logon_script",
+ pdb_get_logon_script(u));
+
+ if (pdb_get_profile_path(u) && strcmp(pdb_get_profile_path(u), ""))
+ smbXmlNewChild(user, data->ns, "profile_path",
+ pdb_get_profile_path(u));
+
+ if (pdb_get_acct_desc(u) && strcmp(pdb_get_acct_desc(u), ""))
+ smbXmlNewChild(user, data->ns, "acct_desc", pdb_get_acct_desc(u));
+
+ if (pdb_get_workstations(u) && strcmp(pdb_get_workstations(u), ""))
+ smbXmlNewChild(user, data->ns, "workstations",
+ pdb_get_workstations(u));
+
+ if (pdb_get_unknown_str(u) && strcmp(pdb_get_unknown_str(u), ""))
+ smbXmlNewChild(user, data->ns, "unknown_str", pdb_get_unknown_str(u));
+
+ if (pdb_get_munged_dial(u) && strcmp(pdb_get_munged_dial(u), ""))
+ smbXmlNewChild(user, data->ns, "munged_dial", pdb_get_munged_dial(u));
+
+
+ /* Password stuff */
+ pass = smbXmlNewChild(user, data->ns, "password", NULL);
+ if (pdb_get_pass_last_set_time(u))
+ xmlNewProp(pass, "last_set", iota(pdb_get_pass_last_set_time(u)));
+ if (pdb_get_init_flags(u, PDB_CANCHANGETIME) != PDB_DEFAULT)
+ xmlNewProp(pass, "can_change",
+ iota(pdb_get_pass_can_change_time(u)));
+
+ if (pdb_get_init_flags(u, PDB_MUSTCHANGETIME) != PDB_DEFAULT)
+ xmlNewProp(pass, "must_change",
+ iota(pdb_get_pass_must_change_time(u)));
+
+
+ if (pdb_get_lanman_passwd(u)) {
+ pdb_sethexpwd(temp, pdb_get_lanman_passwd(u),
+ pdb_get_acct_ctrl(u));
+ cur = smbXmlNewChild(pass, data->ns, "crypt", temp);
+ xmlNewProp(cur, "type", "lanman");
+ }
+
+ if (pdb_get_nt_passwd(u)) {
+ pdb_sethexpwd(temp, pdb_get_nt_passwd(u), pdb_get_acct_ctrl(u));
+ cur = smbXmlNewChild(pass, data->ns, "crypt", temp);
+ xmlNewProp(cur, "type", "nt");
+ }
+
+ smbXmlNewChild(user, data->ns, "acct_ctrl", iota(pdb_get_acct_ctrl(u)));
+
+ if (pdb_get_logon_divs(u))
+ smbXmlNewChild(user, data->ns, "logon_divs",
+ iota(pdb_get_logon_divs(u)));
+
+ if (pdb_get_hours_len(u))
+ smbXmlNewChild(user, data->ns, "hours_len",
+ iota(pdb_get_hours_len(u)));
+
+ smbXmlNewChild(user, data->ns, "bad_password_count", iota(pdb_get_bad_password_count(u)));
+ smbXmlNewChild(user, data->ns, "logon_count", iota(pdb_get_logon_count(u)));
+ smbXmlNewChild(user, data->ns, "unknown_6", iota(pdb_get_unknown_6(u)));
+ xmlSaveFile(data->location, data->doc);
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS xmlsam_init(PDB_CONTEXT * pdb_context, PDB_METHODS ** pdb_method,
+ const char *location)
+{
+ NTSTATUS nt_status;
+ pdb_xml *data;
+
+ xmlsam_debug_level = debug_add_class("xmlsam");
+ if (xmlsam_debug_level == -1) {
+ xmlsam_debug_level = DBGC_ALL;
+ DEBUG(0, ("xmlsam: Couldn't register custom debugging class!\n"));
+ }
+
+ if (!pdb_context) {
+ DEBUG(0, ("invalid pdb_methods specified\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ if (!NT_STATUS_IS_OK
+ (nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
+ return nt_status;
+ }
+
+ (*pdb_method)->name = "xmlsam";
+
+ (*pdb_method)->setsampwent = xmlsam_setsampwent;
+ (*pdb_method)->endsampwent = xmlsam_endsampwent;
+ (*pdb_method)->getsampwent = xmlsam_getsampwent;
+ (*pdb_method)->add_sam_account = xmlsam_add_sam_account;
+ (*pdb_method)->getsampwnam = NULL;
+ (*pdb_method)->getsampwsid = NULL;
+ (*pdb_method)->update_sam_account = NULL;
+ (*pdb_method)->delete_sam_account = NULL;
+ (*pdb_method)->getgrsid = NULL;
+ (*pdb_method)->getgrgid = NULL;
+ (*pdb_method)->getgrnam = NULL;
+ (*pdb_method)->add_group_mapping_entry = NULL;
+ (*pdb_method)->update_group_mapping_entry = NULL;
+ (*pdb_method)->delete_group_mapping_entry = NULL;
+ (*pdb_method)->enum_group_mapping = NULL;
+
+ data = _talloc(pdb_context->mem_ctx, sizeof(pdb_xml));
+ data->location = talloc_strdup(pdb_context->mem_ctx, (location ? location : "passdb.xml"));
+ data->pwent = NULL;
+ data->written = 0;
+ (*pdb_method)->private_data = data;
+
+ LIBXML_TEST_VERSION xmlKeepBlanksDefault(0);
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS pdb_xml_init(void)
+{
+ return smb_register_passdb(PASSDB_INTERFACE_VERSION, "xml", xmlsam_init);
+}
projects / samba / blobdiff