--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Winbind daemon for ntdom nss module
+
+ Copyright (C) Tim Potter 2000-2001
+ Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+
+ 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.
+*/
+
+#include "includes.h"
+#include "winbindd.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_WINBIND
+
+/**
+ * @file winbindd_util.c
+ *
+ * Winbind daemon for NT domain authentication nss module.
+ **/
+
+
+/**
+ * Used to clobber name fields that have an undefined value.
+ *
+ * Correct code should never look at a field that has this value.
+ **/
+
+static const fstring name_deadbeef = "<deadbeef>";
+
+/* The list of trusted domains. Note that the list can be deleted and
+ recreated using the init_domain_list() function so pointers to
+ individual winbindd_domain structures cannot be made. Keep a copy of
+ the domain name instead. */
+
+static struct winbindd_domain *_domain_list;
+
+/**
+ When was the last scan of trusted domains done?
+
+ 0 == not ever
+*/
+
+static time_t last_trustdom_scan;
+
+struct winbindd_domain *domain_list(void)
+{
+ /* Initialise list */
+
+ if (!_domain_list)
+ init_domain_list();
+
+ return _domain_list;
+}
+
+/* Free all entries in the trusted domain list */
+
+void free_domain_list(void)
+{
+ struct winbindd_domain *domain = _domain_list;
+
+ while(domain) {
+ struct winbindd_domain *next = domain->next;
+
+ DLIST_REMOVE(_domain_list, domain);
+ SAFE_FREE(domain);
+ domain = next;
+ }
+}
+
+static BOOL is_internal_domain(const DOM_SID *sid)
+{
+ if (sid == NULL)
+ return False;
+
+ return (sid_check_is_domain(sid) || sid_check_is_builtin(sid));
+}
+
+static BOOL is_in_internal_domain(const DOM_SID *sid)
+{
+ if (sid == NULL)
+ return False;
+
+ return (sid_check_is_in_our_domain(sid) || sid_check_is_in_builtin(sid));
+}
+
+
+/* Add a trusted domain to our list of domains */
+static struct winbindd_domain *add_trusted_domain(const char *domain_name, const char *alt_name,
+ struct winbindd_methods *methods,
+ const DOM_SID *sid)
+{
+ struct winbindd_domain *domain;
+ const char *alternative_name = NULL;
+
+ /* ignore alt_name if we are not in an AD domain */
+
+ if ( (lp_security() == SEC_ADS) && alt_name && *alt_name) {
+ alternative_name = alt_name;
+ }
+
+ /* We can't call domain_list() as this function is called from
+ init_domain_list() and we'll get stuck in a loop. */
+ for (domain = _domain_list; domain; domain = domain->next) {
+ if (strequal(domain_name, domain->name) ||
+ strequal(domain_name, domain->alt_name)) {
+ return domain;
+ }
+ if (alternative_name && *alternative_name) {
+ if (strequal(alternative_name, domain->name) ||
+ strequal(alternative_name, domain->alt_name)) {
+ return domain;
+ }
+ }
+ if (sid) {
+ if (is_null_sid(sid)) {
+
+ } else if (sid_equal(sid, &domain->sid)) {
+ return domain;
+ }
+ }
+ }
+
+ /* Create new domain entry */
+
+ if ((domain = SMB_MALLOC_P(struct winbindd_domain)) == NULL)
+ return NULL;
+
+ /* Fill in fields */
+
+ ZERO_STRUCTP(domain);
+
+ /* prioritise the short name */
+ if (strchr_m(domain_name, '.') && alternative_name && *alternative_name) {
+ fstrcpy(domain->name, alternative_name);
+ fstrcpy(domain->alt_name, domain_name);
+ } else {
+ fstrcpy(domain->name, domain_name);
+ if (alternative_name) {
+ fstrcpy(domain->alt_name, alternative_name);
+ }
+ }
+
+ domain->methods = methods;
+ domain->backend = NULL;
+ domain->internal = is_internal_domain(sid);
+ domain->sequence_number = DOM_SEQUENCE_NONE;
+ domain->last_seq_check = 0;
+ domain->initialized = False;
+ if (sid) {
+ sid_copy(&domain->sid, sid);
+ }
+
+ /* Link to domain list */
+ DLIST_ADD(_domain_list, domain);
+
+ DEBUG(2,("Added domain %s %s %s\n",
+ domain->name, domain->alt_name,
+ &domain->sid?sid_string_static(&domain->sid):""));
+
+ return domain;
+}
+
+/********************************************************************
+ rescan our domains looking for new trusted domains
+********************************************************************/
+
+struct trustdom_state {
+ TALLOC_CTX *mem_ctx;
+ struct winbindd_response *response;
+};
+
+static void trustdom_recv(void *private_data, BOOL success);
+
+static void add_trusted_domains( struct winbindd_domain *domain )
+{
+ TALLOC_CTX *mem_ctx;
+ struct winbindd_request *request;
+ struct winbindd_response *response;
+
+ struct trustdom_state *state;
+
+ mem_ctx = talloc_init("add_trusted_domains");
+ if (mem_ctx == NULL) {
+ DEBUG(0, ("talloc_init failed\n"));
+ return;
+ }
+
+ request = TALLOC_ZERO_P(mem_ctx, struct winbindd_request);
+ response = TALLOC_P(mem_ctx, struct winbindd_response);
+ state = TALLOC_P(mem_ctx, struct trustdom_state);
+
+ if ((request == NULL) || (response == NULL) || (state == NULL)) {
+ DEBUG(0, ("talloc failed\n"));
+ talloc_destroy(mem_ctx);
+ return;
+ }
+
+ state->mem_ctx = mem_ctx;
+ state->response = response;
+
+ request->length = sizeof(*request);
+ request->cmd = WINBINDD_LIST_TRUSTDOM;
+
+ async_domain_request(mem_ctx, domain, request, response,
+ trustdom_recv, state);
+}
+
+static void trustdom_recv(void *private_data, BOOL success)
+{
+ extern struct winbindd_methods cache_methods;
+ struct trustdom_state *state =
+ talloc_get_type_abort(private_data, struct trustdom_state);
+ struct winbindd_response *response = state->response;
+ char *p;
+
+ if ((!success) || (response->result != WINBINDD_OK)) {
+ DEBUG(1, ("Could not receive trustdoms\n"));
+ talloc_destroy(state->mem_ctx);
+ return;
+ }
+
+ p = response->extra_data;
+
+ while ((p != NULL) && (*p != '\0')) {
+ char *q, *sidstr, *alt_name;
+ DOM_SID sid;
+
+ alt_name = strchr(p, '\\');
+ if (alt_name == NULL) {
+ DEBUG(0, ("Got invalid trustdom response\n"));
+ break;
+ }
+
+ *alt_name = '\0';
+ alt_name += 1;
+
+ sidstr = strchr(alt_name, '\\');
+ if (sidstr == NULL) {
+ DEBUG(0, ("Got invalid trustdom response\n"));
+ break;
+ }
+
+ *sidstr = '\0';
+ sidstr += 1;
+
+ q = strchr(sidstr, '\n');
+ if (q != NULL)
+ *q = '\0';
+
+ if (!string_to_sid(&sid, sidstr)) {
+ DEBUG(0, ("Got invalid trustdom response\n"));
+ break;
+ }
+
+ if (find_domain_from_name_noinit(p) == NULL) {
+ struct winbindd_domain *domain;
+ char *alternate_name = NULL;
+
+ /* use the real alt_name if we have one, else pass in NULL */
+
+ if ( !strequal( alt_name, "(null)" ) )
+ alternate_name = alt_name;
+
+ domain = add_trusted_domain(p, alternate_name,
+ &cache_methods,
+ &sid);
+ setup_domain_child(domain, &domain->child, NULL);
+ }
+ p=q;
+ if (p != NULL)
+ p += 1;
+ }
+
+ SAFE_FREE(response->extra_data);
+ talloc_destroy(state->mem_ctx);
+}
+
+/********************************************************************
+ Periodically we need to refresh the trusted domain cache for smbd
+********************************************************************/
+
+void rescan_trusted_domains( void )
+{
+ time_t now = time(NULL);
+
+ /* see if the time has come... */
+
+ if ((now >= last_trustdom_scan) &&
+ ((now-last_trustdom_scan) < WINBINDD_RESCAN_FREQ) )
+ return;
+
+ /* this will only add new domains we didn't already know about */
+
+ add_trusted_domains( find_our_domain() );
+
+ last_trustdom_scan = now;
+
+ return;
+}
+
+struct init_child_state {
+ TALLOC_CTX *mem_ctx;
+ struct winbindd_domain *domain;
+ struct winbindd_request *request;
+ struct winbindd_response *response;
+ void (*continuation)(void *private_data, BOOL success);
+ void *private_data;
+};
+
+static void init_child_recv(void *private_data, BOOL success);
+static void init_child_getdc_recv(void *private_data, BOOL success);
+
+enum winbindd_result init_child_connection(struct winbindd_domain *domain,
+ void (*continuation)(void *private_data,
+ BOOL success),
+ void *private_data)
+{
+ TALLOC_CTX *mem_ctx;
+ struct winbindd_request *request;
+ struct winbindd_response *response;
+ struct init_child_state *state;
+
+ mem_ctx = talloc_init("init_child_connection");
+ if (mem_ctx == NULL) {
+ DEBUG(0, ("talloc_init failed\n"));
+ return WINBINDD_ERROR;
+ }
+
+ request = TALLOC_ZERO_P(mem_ctx, struct winbindd_request);
+ response = TALLOC_P(mem_ctx, struct winbindd_response);
+ state = TALLOC_P(mem_ctx, struct init_child_state);
+
+ if ((request == NULL) || (response == NULL) || (state == NULL)) {
+ DEBUG(0, ("talloc failed\n"));
+ continuation(private_data, False);
+ return WINBINDD_ERROR;
+ }
+
+ request->length = sizeof(*request);
+
+ state->mem_ctx = mem_ctx;
+ state->domain = domain;
+ state->request = request;
+ state->response = response;
+ state->continuation = continuation;
+ state->private_data = private_data;
+
+ if (domain->primary) {
+ /* The primary domain has to find the DC name itself */
+ request->cmd = WINBINDD_INIT_CONNECTION;
+ fstrcpy(request->domain_name, domain->name);
+ request->data.init_conn.is_primary = True;
+ fstrcpy(request->data.init_conn.dcname, "");
+
+ async_request(mem_ctx, &domain->child, request, response,
+ init_child_recv, state);
+ return WINBINDD_PENDING;
+ }
+
+ /* This is *not* the primary domain, let's ask our DC about a DC
+ * name */
+
+ request->cmd = WINBINDD_GETDCNAME;
+ fstrcpy(request->domain_name, domain->name);
+
+ async_domain_request(mem_ctx, find_our_domain(), request, response,
+ init_child_getdc_recv, state);
+ return WINBINDD_PENDING;
+}
+
+static void init_child_getdc_recv(void *private_data, BOOL success)
+{
+ struct init_child_state *state =
+ talloc_get_type_abort(private_data, struct init_child_state);
+ const char *dcname = "";
+
+ DEBUG(10, ("Received getdcname response\n"));
+
+ if (success && (state->response->result == WINBINDD_OK)) {
+ dcname = state->response->data.dc_name;
+ }
+
+ state->request->cmd = WINBINDD_INIT_CONNECTION;
+ fstrcpy(state->request->domain_name, state->domain->name);
+ state->request->data.init_conn.is_primary = False;
+ fstrcpy(state->request->data.init_conn.dcname, dcname);
+
+ async_request(state->mem_ctx, &state->domain->child,
+ state->request, state->response,
+ init_child_recv, state);
+}
+
+static void init_child_recv(void *private_data, BOOL success)
+{
+ struct init_child_state *state =
+ talloc_get_type_abort(private_data, struct init_child_state);
+
+ DEBUG(5, ("Received child initialization response for domain %s\n",
+ state->domain->name));
+
+ if ((!success) || (state->response->result != WINBINDD_OK)) {
+ DEBUG(3, ("Could not init child\n"));
+ state->continuation(state->private_data, False);
+ talloc_destroy(state->mem_ctx);
+ return;
+ }
+
+ fstrcpy(state->domain->name,
+ state->response->data.domain_info.name);
+ fstrcpy(state->domain->alt_name,
+ state->response->data.domain_info.alt_name);
+ string_to_sid(&state->domain->sid,
+ state->response->data.domain_info.sid);
+ state->domain->native_mode =
+ state->response->data.domain_info.native_mode;
+ state->domain->active_directory =
+ state->response->data.domain_info.active_directory;
+ state->domain->sequence_number =
+ state->response->data.domain_info.sequence_number;
+
+ state->domain->initialized = 1;
+
+ if (state->continuation != NULL)
+ state->continuation(state->private_data, True);
+ talloc_destroy(state->mem_ctx);
+}
+
+enum winbindd_result winbindd_dual_init_connection(struct winbindd_domain *domain,
+ struct winbindd_cli_state *state)
+{
+ struct in_addr ipaddr;
+
+ /* Ensure null termination */
+ state->request.domain_name
+ [sizeof(state->request.domain_name)-1]='\0';
+ state->request.data.init_conn.dcname
+ [sizeof(state->request.data.init_conn.dcname)-1]='\0';
+
+ if (strlen(state->request.data.init_conn.dcname) > 0) {
+ fstrcpy(domain->dcname, state->request.data.init_conn.dcname);
+ }
+
+ if (strlen(domain->dcname) > 0) {
+ if (!resolve_name(domain->dcname, &ipaddr, 0x20)) {
+ DEBUG(2, ("Could not resolve DC name %s for domain %s\n",
+ domain->dcname, domain->name));
+ return WINBINDD_ERROR;
+ }
+
+ domain->dcaddr.sin_family = PF_INET;
+ putip((char *)&(domain->dcaddr.sin_addr), (char *)&ipaddr);
+ domain->dcaddr.sin_port = 0;
+ }
+
+ set_dc_type_and_flags(domain);
+
+ if (!domain->initialized) {
+ DEBUG(1, ("Could not initialize domain %s\n",
+ state->request.domain_name));
+ return WINBINDD_ERROR;
+ }
+
+ fstrcpy(state->response.data.domain_info.name, domain->name);
+ fstrcpy(state->response.data.domain_info.alt_name, domain->alt_name);
+ fstrcpy(state->response.data.domain_info.sid,
+ sid_string_static(&domain->sid));
+
+ state->response.data.domain_info.native_mode
+ = domain->native_mode;
+ state->response.data.domain_info.active_directory
+ = domain->active_directory;
+ state->response.data.domain_info.primary
+ = domain->primary;
+ state->response.data.domain_info.sequence_number =
+ domain->sequence_number;
+
+ return WINBINDD_OK;
+}
+
+/* Look up global info for the winbind daemon */
+void init_domain_list(void)
+{
+ extern struct winbindd_methods cache_methods;
+ extern struct winbindd_methods passdb_methods;
+ struct winbindd_domain *domain;
+
+ /* Free existing list */
+ free_domain_list();
+
+ /* Add ourselves as the first entry. */
+
+ if (IS_DC) {
+ domain = add_trusted_domain(get_global_sam_name(), NULL,
+ &passdb_methods,
+ get_global_sam_sid());
+ } else {
+
+ DOM_SID our_sid;
+
+ if (!secrets_fetch_domain_sid(lp_workgroup(), &our_sid)) {
+ smb_panic("Could not fetch our SID - did we join?\n");
+ }
+
+ domain = add_trusted_domain( lp_workgroup(), lp_realm(),
+ &cache_methods, &our_sid);
+ }
+
+ domain->primary = True;
+ setup_domain_child(domain, &domain->child, NULL);
+
+ /* Add our local SAM domains */
+
+ domain = add_trusted_domain("BUILTIN", NULL, &passdb_methods,
+ &global_sid_Builtin);
+ setup_domain_child(domain, &domain->child, NULL);
+
+ if (!IS_DC) {
+ domain = add_trusted_domain(get_global_sam_name(), NULL,
+ &passdb_methods,
+ get_global_sam_sid());
+ setup_domain_child(domain, &domain->child, NULL);
+ }
+}
+
+/**
+ * Given a domain name, return the struct winbindd domain info for it
+ *
+ * @note Do *not* pass lp_workgroup() to this function. domain_list
+ * may modify it's value, and free that pointer. Instead, our local
+ * domain may be found by calling find_our_domain().
+ * directly.
+ *
+ *
+ * @return The domain structure for the named domain, if it is working.
+ */
+
+struct winbindd_domain *find_domain_from_name_noinit(const char *domain_name)
+{
+ struct winbindd_domain *domain;
+
+ /* Search through list */
+
+ for (domain = domain_list(); domain != NULL; domain = domain->next) {
+ if (strequal(domain_name, domain->name) ||
+ (domain->alt_name[0] &&
+ strequal(domain_name, domain->alt_name))) {
+ return domain;
+ }
+ }
+
+ /* Not found */
+
+ return NULL;
+}
+
+struct winbindd_domain *find_domain_from_name(const char *domain_name)
+{
+ struct winbindd_domain *domain;
+
+ domain = find_domain_from_name_noinit(domain_name);
+
+ if (domain == NULL)
+ return NULL;
+
+ if (!domain->initialized)
+ set_dc_type_and_flags(domain);
+
+ return domain;
+}
+
+/* Given a domain sid, return the struct winbindd domain info for it */
+
+struct winbindd_domain *find_domain_from_sid_noinit(const DOM_SID *sid)
+{
+ struct winbindd_domain *domain;
+
+ /* Search through list */
+
+ for (domain = domain_list(); domain != NULL; domain = domain->next) {
+ if (sid_compare_domain(sid, &domain->sid) == 0)
+ return domain;
+ }
+
+ /* Not found */
+
+ return NULL;
+}
+
+/* Given a domain sid, return the struct winbindd domain info for it */
+
+struct winbindd_domain *find_domain_from_sid(const DOM_SID *sid)
+{
+ struct winbindd_domain *domain;
+
+ domain = find_domain_from_sid_noinit(sid);
+
+ if (domain == NULL)
+ return NULL;
+
+ if (!domain->initialized)
+ set_dc_type_and_flags(domain);
+
+ return domain;
+}
+
+struct winbindd_domain *find_our_domain(void)
+{
+ struct winbindd_domain *domain;
+
+ /* Search through list */
+
+ for (domain = domain_list(); domain != NULL; domain = domain->next) {
+ if (domain->primary)
+ return domain;
+ }
+
+ smb_panic("Could not find our domain\n");
+ return NULL;
+}
+
+struct winbindd_domain *find_builtin_domain(void)
+{
+ DOM_SID sid;
+ struct winbindd_domain *domain;
+
+ string_to_sid(&sid, "S-1-5-32");
+ domain = find_domain_from_sid(&sid);
+
+ if (domain == NULL)
+ smb_panic("Could not find BUILTIN domain\n");
+
+ return domain;
+}
+
+/* Find the appropriate domain to lookup a name or SID */
+
+struct winbindd_domain *find_lookup_domain_from_sid(const DOM_SID *sid)
+{
+ /* A DC can't ask the local smbd for remote SIDs, here winbindd is the
+ * one to contact the external DC's. On member servers the internal
+ * domains are different: These are part of the local SAM. */
+
+ DEBUG(10, ("find_lookup_domain_from_sid(%s)\n",
+ sid_string_static(sid)));
+
+ if (IS_DC || is_internal_domain(sid) || is_in_internal_domain(sid)) {
+ DEBUG(10, ("calling find_domain_from_sid\n"));
+ return find_domain_from_sid(sid);
+ }
+
+ /* On a member server a query for SID or name can always go to our
+ * primary DC. */
+
+ DEBUG(10, ("calling find_our_domain\n"));
+ return find_our_domain();
+}
+
+struct winbindd_domain *find_lookup_domain_from_name(const char *domain_name)
+{
+ if (IS_DC || strequal(domain_name, "BUILTIN") ||
+ strequal(domain_name, get_global_sam_name()))
+ return find_domain_from_name_noinit(domain_name);
+
+ return find_our_domain();
+}
+
+/* Lookup a sid in a domain from a name */
+
+BOOL winbindd_lookup_sid_by_name(TALLOC_CTX *mem_ctx,
+ struct winbindd_domain *domain,
+ const char *domain_name,
+ const char *name, DOM_SID *sid,
+ enum SID_NAME_USE *type)
+{
+ NTSTATUS result;
+
+ /* Lookup name */
+ result = domain->methods->name_to_sid(domain, mem_ctx, domain_name, name, sid, type);
+
+ /* Return rid and type if lookup successful */
+ if (!NT_STATUS_IS_OK(result)) {
+ *type = SID_NAME_UNKNOWN;
+ }
+
+ return NT_STATUS_IS_OK(result);
+}
+
+/**
+ * @brief Lookup a name in a domain from a sid.
+ *
+ * @param sid Security ID you want to look up.
+ * @param name On success, set to the name corresponding to @p sid.
+ * @param dom_name On success, set to the 'domain name' corresponding to @p sid.
+ * @param type On success, contains the type of name: alias, group or
+ * user.
+ * @retval True if the name exists, in which case @p name and @p type
+ * are set, otherwise False.
+ **/
+BOOL winbindd_lookup_name_by_sid(TALLOC_CTX *mem_ctx,
+ DOM_SID *sid,
+ fstring dom_name,
+ fstring name,
+ enum SID_NAME_USE *type)
+{
+ char *names;
+ char *dom_names;
+ NTSTATUS result;
+ BOOL rv = False;
+ struct winbindd_domain *domain;
+
+ domain = find_lookup_domain_from_sid(sid);
+
+ if (!domain) {
+ DEBUG(1,("Can't find domain from sid\n"));
+ return False;
+ }
+
+ /* Lookup name */
+
+ result = domain->methods->sid_to_name(domain, mem_ctx, sid, &dom_names, &names, type);
+
+ /* Return name and type if successful */
+
+ if ((rv = NT_STATUS_IS_OK(result))) {
+ fstrcpy(dom_name, dom_names);
+ fstrcpy(name, names);
+ } else {
+ *type = SID_NAME_UNKNOWN;
+ fstrcpy(name, name_deadbeef);
+ }
+
+ return rv;
+}
+
+/* Free state information held for {set,get,end}{pw,gr}ent() functions */
+
+void free_getent_state(struct getent_state *state)
+{
+ struct getent_state *temp;
+
+ /* Iterate over state list */
+
+ temp = state;
+
+ while(temp != NULL) {
+ struct getent_state *next;
+
+ /* Free sam entries then list entry */
+
+ SAFE_FREE(state->sam_entries);
+ DLIST_REMOVE(state, state);
+ next = temp->next;
+
+ SAFE_FREE(temp);
+ temp = next;
+ }
+}
+
+/* Parse winbindd related parameters */
+
+BOOL winbindd_param_init(void)
+{
+ /* Parse winbind uid and winbind_gid parameters */
+
+ if (!lp_idmap_uid(&server_state.uid_low, &server_state.uid_high)) {
+ DEBUG(0, ("winbindd: idmap uid range missing or invalid\n"));
+ DEBUG(0, ("winbindd: cannot continue, exiting.\n"));
+ return False;
+ }
+
+ if (!lp_idmap_gid(&server_state.gid_low, &server_state.gid_high)) {
+ DEBUG(0, ("winbindd: idmap gid range missing or invalid\n"));
+ DEBUG(0, ("winbindd: cannot continue, exiting.\n"));
+ return False;
+ }
+
+ return True;
+}
+
+BOOL is_in_uid_range(uid_t uid)
+{
+ return ((uid >= server_state.uid_low) &&
+ (uid <= server_state.uid_high));
+}
+
+BOOL is_in_gid_range(gid_t gid)
+{
+ return ((gid >= server_state.gid_low) &&
+ (gid <= server_state.gid_high));
+}
+
+/* Is this a domain which we may assume no DOMAIN\ prefix? */
+
+static BOOL assume_domain(const char *domain) {
+ if ((lp_winbind_use_default_domain()
+ || lp_winbind_trusted_domains_only()) &&
+ strequal(lp_workgroup(), domain))
+ return True;
+
+ if (strequal(get_global_sam_name(), domain))
+ return True;
+
+ return False;
+}
+
+/* Parse a string of the form DOMAIN\user into a domain and a user */
+
+BOOL parse_domain_user(const char *domuser, fstring domain, fstring user)
+{
+ char *p = strchr(domuser,*lp_winbind_separator());
+
+ if ( !p ) {
+ fstrcpy(user, domuser);
+
+ if ( assume_domain(lp_workgroup())) {
+ fstrcpy(domain, lp_workgroup());
+ } else {
+ fstrcpy( domain, get_global_sam_name() );
+ }
+ }
+ else {
+ fstrcpy(user, p+1);
+ fstrcpy(domain, domuser);
+ domain[PTR_DIFF(p, domuser)] = 0;
+ }
+
+ strupper_m(domain);
+
+ return True;
+}
+
+BOOL parse_domain_user_talloc(TALLOC_CTX *mem_ctx, const char *domuser,
+ char **domain, char **user)
+{
+ fstring fstr_domain, fstr_user;
+ parse_domain_user(domuser, fstr_domain, fstr_user);
+ *domain = talloc_strdup(mem_ctx, fstr_domain);
+ *user = talloc_strdup(mem_ctx, fstr_user);
+ return ((*domain != NULL) && (*user != NULL));
+}
+
+/*
+ Fill DOMAIN\\USERNAME entry accounting 'winbind use default domain' and
+ 'winbind separator' options.
+ This means:
+ - omit DOMAIN when 'winbind use default domain = true' and DOMAIN is
+ lp_workgroup()
+
+ If we are a PDC or BDC, and this is for our domain, do likewise.
+
+ Also, if omit DOMAIN if 'winbind trusted domains only = true', as the
+ username is then unqualified in unix
+
+*/
+void fill_domain_username(fstring name, const char *domain, const char *user)
+{
+ fstring tmp_user;
+
+ fstrcpy(tmp_user, user);
+ strlower_m(tmp_user);
+
+ if (assume_domain(domain)) {
+ strlcpy(name, user, sizeof(fstring));
+ } else {
+ slprintf(name, sizeof(fstring) - 1, "%s%c%s",
+ domain, *lp_winbind_separator(),
+ tmp_user);
+ }
+}
+
+/*
+ * Winbindd socket accessor functions
+ */
+
+char *get_winbind_priv_pipe_dir(void)
+{
+ return lock_path(WINBINDD_PRIV_SOCKET_SUBDIR);
+}
+
+/* Open the winbindd socket */
+
+static int _winbindd_socket = -1;
+static int _winbindd_priv_socket = -1;
+
+int open_winbindd_socket(void)
+{
+ if (_winbindd_socket == -1) {
+ _winbindd_socket = create_pipe_sock(
+ WINBINDD_SOCKET_DIR, WINBINDD_SOCKET_NAME, 0755);
+ DEBUG(10, ("open_winbindd_socket: opened socket fd %d\n",
+ _winbindd_socket));
+ }
+
+ return _winbindd_socket;
+}
+
+int open_winbindd_priv_socket(void)
+{
+ if (_winbindd_priv_socket == -1) {
+ _winbindd_priv_socket = create_pipe_sock(
+ get_winbind_priv_pipe_dir(), WINBINDD_SOCKET_NAME, 0750);
+ DEBUG(10, ("open_winbindd_priv_socket: opened socket fd %d\n",
+ _winbindd_priv_socket));
+ }
+
+ return _winbindd_priv_socket;
+}
+
+/* Close the winbindd socket */
+
+void close_winbindd_socket(void)
+{
+ if (_winbindd_socket != -1) {
+ DEBUG(10, ("close_winbindd_socket: closing socket fd %d\n",
+ _winbindd_socket));
+ close(_winbindd_socket);
+ _winbindd_socket = -1;
+ }
+ if (_winbindd_priv_socket != -1) {
+ DEBUG(10, ("close_winbindd_socket: closing socket fd %d\n",
+ _winbindd_priv_socket));
+ close(_winbindd_priv_socket);
+ _winbindd_priv_socket = -1;
+ }
+}
+
+/*
+ * Client list accessor functions
+ */
+
+static struct winbindd_cli_state *_client_list;
+static int _num_clients;
+
+/* Return list of all connected clients */
+
+struct winbindd_cli_state *winbindd_client_list(void)
+{
+ return _client_list;
+}
+
+/* Add a connection to the list */
+
+void winbindd_add_client(struct winbindd_cli_state *cli)
+{
+ DLIST_ADD(_client_list, cli);
+ _num_clients++;
+}
+
+/* Remove a client from the list */
+
+void winbindd_remove_client(struct winbindd_cli_state *cli)
+{
+ DLIST_REMOVE(_client_list, cli);
+ _num_clients--;
+}
+
+/* Demote a client to be the last in the list */
+
+void winbindd_demote_client(struct winbindd_cli_state *cli)
+{
+ struct winbindd_cli_state *tmp;
+ DLIST_DEMOTE(_client_list, cli, tmp);
+}
+
+/* Close all open clients */
+
+void winbindd_kill_all_clients(void)
+{
+ struct winbindd_cli_state *cl = winbindd_client_list();
+
+ DEBUG(10, ("winbindd_kill_all_clients: going postal\n"));
+
+ while (cl) {
+ struct winbindd_cli_state *next;
+
+ next = cl->next;
+ winbindd_remove_client(cl);
+ cl = next;
+ }
+}
+
+/* Return number of open clients */
+
+int winbindd_num_clients(void)
+{
+ return _num_clients;
+}
+
+/*****************************************************************************
+ For idmap conversion: convert one record to new format
+ Ancient versions (eg 2.2.3a) of winbindd_idmap.tdb mapped DOMAINNAME/rid
+ instead of the SID.
+*****************************************************************************/
+static int convert_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA data, void *state)
+{
+ struct winbindd_domain *domain;
+ char *p;
+ DOM_SID sid;
+ uint32 rid;
+ fstring keystr;
+ fstring dom_name;
+ TDB_DATA key2;
+ BOOL *failed = (BOOL *)state;
+
+ DEBUG(10,("Converting %s\n", key.dptr));
+
+ p = strchr(key.dptr, '/');
+ if (!p)
+ return 0;
+
+ *p = 0;
+ fstrcpy(dom_name, key.dptr);
+ *p++ = '/';
+
+ domain = find_domain_from_name(dom_name);
+ if (domain == NULL) {
+ /* We must delete the old record. */
+ DEBUG(0,("Unable to find domain %s\n", dom_name ));
+ DEBUG(0,("deleting record %s\n", key.dptr ));
+
+ if (tdb_delete(tdb, key) != 0) {
+ DEBUG(0, ("Unable to delete record %s\n", key.dptr));
+ *failed = True;
+ return -1;
+ }
+
+ return 0;
+ }
+
+ rid = atoi(p);
+
+ sid_copy(&sid, &domain->sid);
+ sid_append_rid(&sid, rid);
+
+ sid_to_string(keystr, &sid);
+ key2.dptr = keystr;
+ key2.dsize = strlen(keystr) + 1;
+
+ if (tdb_store(tdb, key2, data, TDB_INSERT) != 0) {
+ DEBUG(0,("Unable to add record %s\n", key2.dptr ));
+ *failed = True;
+ return -1;
+ }
+
+ if (tdb_store(tdb, data, key2, TDB_REPLACE) != 0) {
+ DEBUG(0,("Unable to update record %s\n", data.dptr ));
+ *failed = True;
+ return -1;
+ }
+
+ if (tdb_delete(tdb, key) != 0) {
+ DEBUG(0,("Unable to delete record %s\n", key.dptr ));
+ *failed = True;
+ return -1;
+ }
+
+ return 0;
+}
+
+/* These definitions are from sam/idmap_tdb.c. Replicated here just
+ out of laziness.... :-( */
+
+/* High water mark keys */
+#define HWM_GROUP "GROUP HWM"
+#define HWM_USER "USER HWM"
+
+/* idmap version determines auto-conversion */
+#define IDMAP_VERSION 2
+
+
+/*****************************************************************************
+ Convert the idmap database from an older version.
+*****************************************************************************/
+
+static BOOL idmap_convert(const char *idmap_name)
+{
+ int32 vers;
+ BOOL bigendianheader;
+ BOOL failed = False;
+ TDB_CONTEXT *idmap_tdb;
+
+ if (!(idmap_tdb = tdb_open_log(idmap_name, 0,
+ TDB_DEFAULT, O_RDWR,
+ 0600))) {
+ DEBUG(0, ("idmap_convert: Unable to open idmap database\n"));
+ return False;
+ }
+
+ bigendianheader = (idmap_tdb->flags & TDB_BIGENDIAN) ? True : False;
+
+ vers = tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION");
+
+ if (((vers == -1) && bigendianheader) || (IREV(vers) == IDMAP_VERSION)) {
+ /* Arrggghh ! Bytereversed or old big-endian - make order independent ! */
+ /*
+ * high and low records were created on a
+ * big endian machine and will need byte-reversing.
+ */
+
+ int32 wm;
+
+ wm = tdb_fetch_int32(idmap_tdb, HWM_USER);
+
+ if (wm != -1) {
+ wm = IREV(wm);
+ } else {
+ wm = server_state.uid_low;
+ }
+
+ if (tdb_store_int32(idmap_tdb, HWM_USER, wm) == -1) {
+ DEBUG(0, ("idmap_convert: Unable to byteswap user hwm in idmap database\n"));
+ tdb_close(idmap_tdb);
+ return False;
+ }
+
+ wm = tdb_fetch_int32(idmap_tdb, HWM_GROUP);
+ if (wm != -1) {
+ wm = IREV(wm);
+ } else {
+ wm = server_state.gid_low;
+ }
+
+ if (tdb_store_int32(idmap_tdb, HWM_GROUP, wm) == -1) {
+ DEBUG(0, ("idmap_convert: Unable to byteswap group hwm in idmap database\n"));
+ tdb_close(idmap_tdb);
+ return False;
+ }
+ }
+
+ /* the old format stored as DOMAIN/rid - now we store the SID direct */
+ tdb_traverse(idmap_tdb, convert_fn, &failed);
+
+ if (failed) {
+ DEBUG(0, ("Problem during conversion\n"));
+ tdb_close(idmap_tdb);
+ return False;
+ }
+
+ if (tdb_store_int32(idmap_tdb, "IDMAP_VERSION", IDMAP_VERSION) == -1) {
+ DEBUG(0, ("idmap_convert: Unable to dtore idmap version in databse\n"));
+ tdb_close(idmap_tdb);
+ return False;
+ }
+
+ tdb_close(idmap_tdb);
+ return True;
+}
+
+/*****************************************************************************
+ Convert the idmap database from an older version if necessary
+*****************************************************************************/
+
+BOOL winbindd_upgrade_idmap(void)
+{
+ pstring idmap_name;
+ pstring backup_name;
+ SMB_STRUCT_STAT stbuf;
+ TDB_CONTEXT *idmap_tdb;
+
+ pstrcpy(idmap_name, lock_path("winbindd_idmap.tdb"));
+
+ if (!file_exist(idmap_name, &stbuf)) {
+ /* nothing to convert return */
+ return True;
+ }
+
+ if (!(idmap_tdb = tdb_open_log(idmap_name, 0,
+ TDB_DEFAULT, O_RDWR,
+ 0600))) {
+ DEBUG(0, ("idmap_convert: Unable to open idmap database\n"));
+ return False;
+ }
+
+ if (tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION") == IDMAP_VERSION) {
+ /* nothing to convert return */
+ tdb_close(idmap_tdb);
+ return True;
+ }
+
+ /* backup_tdb expects the tdb not to be open */
+ tdb_close(idmap_tdb);
+
+ DEBUG(0, ("Upgrading winbindd_idmap.tdb from an old version\n"));
+
+ pstrcpy(backup_name, idmap_name);
+ pstrcat(backup_name, ".bak");
+
+ if (backup_tdb(idmap_name, backup_name) != 0) {
+ DEBUG(0, ("Could not backup idmap database\n"));
+ return False;
+ }
+
+ return idmap_convert(idmap_name);
+}
projects / samba / blobdiff