--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Winbind daemon for ntdom nss module
+
+ Copyright (C) Tim Potter 2000
+ Copyright (C) Jeremy Allison 2001.
+ Copyright (C) Gerald (Jerry) Carter 2003.
+ Copyright (C) Volker Lendecke 2005
+
+ 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"
+
+extern BOOL opt_nocache;
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_WINBIND
+
+/***************************************************************
+ Empty static struct for negative caching.
+****************************************************************/
+
+/* Fill a grent structure from various other information */
+
+static BOOL fill_grent(struct winbindd_gr *gr, const char *dom_name,
+ const char *gr_name, gid_t unix_gid)
+{
+ fstring full_group_name;
+ /* Fill in uid/gid */
+ fill_domain_username(full_group_name, dom_name, gr_name);
+
+ gr->gr_gid = unix_gid;
+
+ /* Group name and password */
+
+ safe_strcpy(gr->gr_name, full_group_name, sizeof(gr->gr_name) - 1);
+ safe_strcpy(gr->gr_passwd, "x", sizeof(gr->gr_passwd) - 1);
+
+ return True;
+}
+
+/* Fill in the group membership field of a NT group given by group_sid */
+
+static BOOL fill_grent_mem(struct winbindd_domain *domain,
+ DOM_SID *group_sid,
+ enum SID_NAME_USE group_name_type,
+ size_t *num_gr_mem, char **gr_mem, size_t *gr_mem_len)
+{
+ DOM_SID *sid_mem = NULL;
+ uint32 num_names = 0;
+ uint32 *name_types = NULL;
+ unsigned int buf_len, buf_ndx, i;
+ char **names = NULL, *buf;
+ BOOL result = False;
+ TALLOC_CTX *mem_ctx;
+ NTSTATUS status;
+ fstring sid_string;
+
+ if (!(mem_ctx = talloc_init("fill_grent_mem(%s)", domain->name)))
+ return False;
+
+ /* Initialise group membership information */
+
+ DEBUG(10, ("group SID %s\n", sid_to_string(sid_string, group_sid)));
+
+ *num_gr_mem = 0;
+
+ /* HACK ALERT!! This whole routine does not cope with group members
+ * from more than one domain, ie aliases. Thus we have to work it out
+ * ourselves in a special routine. */
+
+ if (domain->internal)
+ return fill_passdb_alias_grmem(domain, group_sid,
+ num_gr_mem,
+ gr_mem, gr_mem_len);
+
+ if ( !((group_name_type==SID_NAME_DOM_GRP) ||
+ ((group_name_type==SID_NAME_ALIAS) && domain->primary)) )
+ {
+ DEBUG(1, ("SID %s in domain %s isn't a domain group (%d)\n",
+ sid_to_string(sid_string, group_sid), domain->name,
+ group_name_type));
+ goto done;
+ }
+
+ /* Lookup group members */
+ status = domain->methods->lookup_groupmem(domain, mem_ctx, group_sid, &num_names,
+ &sid_mem, &names, &name_types);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("could not lookup membership for group rid %s in domain %s (error: %s)\n",
+ sid_to_string(sid_string, group_sid), domain->name, nt_errstr(status)));
+
+ goto done;
+ }
+
+ DEBUG(10, ("looked up %d names\n", num_names));
+
+ if (DEBUGLEVEL >= 10) {
+ for (i = 0; i < num_names; i++)
+ DEBUG(10, ("\t%20s %s %d\n", names[i],
+ sid_string_static(&sid_mem[i]),
+ name_types[i]));
+ }
+
+ /* Add members to list */
+
+ buf = NULL;
+ buf_len = buf_ndx = 0;
+
+ again:
+
+ for (i = 0; i < num_names; i++) {
+ char *the_name;
+ fstring name;
+ int len;
+
+ the_name = names[i];
+
+ DEBUG(10, ("processing name %s\n", the_name));
+
+ /* FIXME: need to cope with groups within groups. These
+ occur in Universal groups on a Windows 2000 native mode
+ server. */
+
+ /* make sure to allow machine accounts */
+
+ if (name_types[i] != SID_NAME_USER && name_types[i] != SID_NAME_COMPUTER) {
+ DEBUG(3, ("name %s isn't a domain user\n", the_name));
+ continue;
+ }
+
+ /* Append domain name */
+
+ fill_domain_username(name, domain->name, the_name);
+
+ len = strlen(name);
+
+ /* Add to list or calculate buffer length */
+
+ if (!buf) {
+ buf_len += len + 1; /* List is comma separated */
+ (*num_gr_mem)++;
+ DEBUG(10, ("buf_len + %d = %d\n", len + 1, buf_len));
+ } else {
+ DEBUG(10, ("appending %s at ndx %d\n", name, len));
+ safe_strcpy(&buf[buf_ndx], name, len);
+ buf_ndx += len;
+ buf[buf_ndx] = ',';
+ buf_ndx++;
+ }
+ }
+
+ /* Allocate buffer */
+
+ if (!buf && buf_len != 0) {
+ if (!(buf = SMB_MALLOC(buf_len))) {
+ DEBUG(1, ("out of memory\n"));
+ result = False;
+ goto done;
+ }
+ memset(buf, 0, buf_len);
+ goto again;
+ }
+
+ if (buf && buf_ndx > 0) {
+ buf[buf_ndx - 1] = '\0';
+ }
+
+ *gr_mem = buf;
+ *gr_mem_len = buf_len;
+
+ DEBUG(10, ("num_mem = %d, len = %d, mem = %s\n", *num_gr_mem,
+ buf_len, *num_gr_mem ? buf : "NULL"));
+ result = True;
+
+done:
+
+ talloc_destroy(mem_ctx);
+
+ DEBUG(10, ("fill_grent_mem returning %d\n", result));
+
+ return result;
+}
+
+/* Return a group structure from a group name */
+
+void winbindd_getgrnam(struct winbindd_cli_state *state)
+{
+ DOM_SID group_sid;
+ struct winbindd_domain *domain;
+ enum SID_NAME_USE name_type;
+ fstring name_domain, name_group;
+ char *tmp, *gr_mem;
+ size_t gr_mem_len;
+ gid_t gid;
+
+ /* Ensure null termination */
+ state->request.data.groupname[sizeof(state->request.data.groupname)-1]='\0';
+
+ DEBUG(3, ("[%5lu]: getgrnam %s\n", (unsigned long)state->pid,
+ state->request.data.groupname));
+
+ /* Parse domain and groupname */
+
+ memset(name_group, 0, sizeof(fstring));
+
+ tmp = state->request.data.groupname;
+
+ parse_domain_user(tmp, name_domain, name_group);
+
+ /* if no domain or our local domain and no local tdb group, default to
+ * our local domain for aliases */
+
+ if ( !*name_domain || strequal(name_domain, get_global_sam_name()) ) {
+ fstrcpy(name_domain, get_global_sam_name());
+ }
+
+ /* Get info for the domain */
+
+ if ((domain = find_domain_from_name(name_domain)) == NULL) {
+ DEBUG(3, ("could not get domain sid for domain %s\n",
+ name_domain));
+ request_error(state);
+ return;
+ }
+ /* should we deal with users for our domain? */
+
+ if ( lp_winbind_trusted_domains_only() && domain->primary) {
+ DEBUG(7,("winbindd_getgrnam: My domain -- rejecting getgrnam() for %s\\%s.\n",
+ name_domain, name_group));
+ request_error(state);
+ return;
+ }
+
+ /* Get rid and name type from name */
+
+ if (!winbindd_lookup_sid_by_name(state->mem_ctx, domain, domain->name,
+ name_group, &group_sid, &name_type)) {
+ DEBUG(1, ("group %s in domain %s does not exist\n",
+ name_group, name_domain));
+ request_error(state);
+ return;
+ }
+
+ if ( !((name_type==SID_NAME_DOM_GRP) ||
+ ((name_type==SID_NAME_ALIAS) && domain->primary) ||
+ ((name_type==SID_NAME_ALIAS) && domain->internal) ||
+ ((name_type==SID_NAME_WKN_GRP) && domain->internal)) )
+ {
+ DEBUG(1, ("name '%s' is not a local, domain or builtin group: %d\n",
+ name_group, name_type));
+ request_error(state);
+ return;
+ }
+
+ if (!NT_STATUS_IS_OK(idmap_sid_to_gid(&group_sid, &gid, 0))) {
+ DEBUG(1, ("error converting unix gid to sid\n"));
+ request_error(state);
+ return;
+ }
+
+ if (!fill_grent(&state->response.data.gr, name_domain,
+ name_group, gid) ||
+ !fill_grent_mem(domain, &group_sid, name_type,
+ &state->response.data.gr.num_gr_mem,
+ &gr_mem, &gr_mem_len)) {
+ request_error(state);
+ return;
+ }
+
+ /* Group membership lives at start of extra data */
+
+ state->response.data.gr.gr_mem_ofs = 0;
+
+ state->response.length += gr_mem_len;
+ state->response.extra_data = gr_mem;
+ request_ok(state);
+}
+
+/* Return a group structure from a gid number */
+
+void winbindd_getgrgid(struct winbindd_cli_state *state)
+{
+ struct winbindd_domain *domain;
+ DOM_SID group_sid;
+ enum SID_NAME_USE name_type;
+ fstring dom_name;
+ fstring group_name;
+ size_t gr_mem_len;
+ char *gr_mem;
+
+ DEBUG(3, ("[%5lu]: getgrgid %lu\n", (unsigned long)state->pid,
+ (unsigned long)state->request.data.gid));
+
+ /* Bug out if the gid isn't in the winbind range */
+
+ if ((state->request.data.gid < server_state.gid_low) ||
+ (state->request.data.gid > server_state.gid_high)) {
+ request_error(state);
+ return;
+ }
+
+ /* Get rid from gid */
+ if (!NT_STATUS_IS_OK(idmap_gid_to_sid(&group_sid, state->request.data.gid, 0))) {
+ DEBUG(1, ("could not convert gid %lu to rid\n",
+ (unsigned long)state->request.data.gid));
+ request_error(state);
+ return;
+ }
+
+ /* Get name from sid */
+
+ if (!winbindd_lookup_name_by_sid(state->mem_ctx, &group_sid, dom_name,
+ group_name, &name_type)) {
+ DEBUG(1, ("could not lookup sid\n"));
+ request_error(state);
+ return;
+ }
+
+ /* Fill in group structure */
+
+ domain = find_domain_from_sid_noinit(&group_sid);
+
+ if (!domain) {
+ DEBUG(1,("Can't find domain from sid\n"));
+ request_error(state);
+ return;
+ }
+
+ if ( !((name_type==SID_NAME_DOM_GRP) ||
+ ((name_type==SID_NAME_ALIAS) && domain->primary) ||
+ ((name_type==SID_NAME_ALIAS) && domain->internal)) )
+ {
+ DEBUG(1, ("name '%s' is not a local or domain group: %d\n",
+ group_name, name_type));
+ request_error(state);
+ return;
+ }
+
+ if (!fill_grent(&state->response.data.gr, dom_name, group_name,
+ state->request.data.gid) ||
+ !fill_grent_mem(domain, &group_sid, name_type,
+ &state->response.data.gr.num_gr_mem,
+ &gr_mem, &gr_mem_len)) {
+ request_error(state);
+ return;
+ }
+
+ /* Group membership lives at start of extra data */
+
+ state->response.data.gr.gr_mem_ofs = 0;
+
+ state->response.length += gr_mem_len;
+ state->response.extra_data = gr_mem;
+ request_ok(state);
+}
+
+/*
+ * set/get/endgrent functions
+ */
+
+/* "Rewind" file pointer for group database enumeration */
+
+static BOOL winbindd_setgrent_internal(struct winbindd_cli_state *state)
+{
+ struct winbindd_domain *domain;
+
+ DEBUG(3, ("[%5lu]: setgrent\n", (unsigned long)state->pid));
+
+ /* Check user has enabled this */
+
+ if (!lp_winbind_enum_groups()) {
+ return False;
+ }
+
+ /* Free old static data if it exists */
+
+ if (state->getgrent_state != NULL) {
+ free_getent_state(state->getgrent_state);
+ state->getgrent_state = NULL;
+ }
+
+ /* Create sam pipes for each domain we know about */
+
+ for (domain = domain_list(); domain != NULL; domain = domain->next) {
+ struct getent_state *domain_state;
+
+ /* Create a state record for this domain */
+
+ /* don't add our domaina if we are a PDC or if we
+ are a member of a Samba domain */
+
+ if ( lp_winbind_trusted_domains_only() && domain->primary )
+ {
+ continue;
+ }
+
+
+ if ((domain_state = SMB_MALLOC_P(struct getent_state)) == NULL) {
+ DEBUG(1, ("winbindd_setgrent: malloc failed for domain_state!\n"));
+ return False;
+ }
+
+ ZERO_STRUCTP(domain_state);
+
+ fstrcpy(domain_state->domain_name, domain->name);
+
+ /* Add to list of open domains */
+
+ DLIST_ADD(state->getgrent_state, domain_state);
+ }
+
+ state->getgrent_initialized = True;
+ return True;
+}
+
+void winbindd_setgrent(struct winbindd_cli_state *state)
+{
+ if (winbindd_setgrent_internal(state)) {
+ request_ok(state);
+ } else {
+ request_error(state);
+ }
+}
+
+/* Close file pointer to ntdom group database */
+
+void winbindd_endgrent(struct winbindd_cli_state *state)
+{
+ DEBUG(3, ("[%5lu]: endgrent\n", (unsigned long)state->pid));
+
+ free_getent_state(state->getgrent_state);
+ state->getgrent_initialized = False;
+ state->getgrent_state = NULL;
+ request_ok(state);
+}
+
+/* Get the list of domain groups and domain aliases for a domain. We fill in
+ the sam_entries and num_sam_entries fields with domain group information.
+ The dispinfo_ndx field is incremented to the index of the next group to
+ fetch. Return True if some groups were returned, False otherwise. */
+
+static BOOL get_sam_group_entries(struct getent_state *ent)
+{
+ NTSTATUS status;
+ uint32 num_entries;
+ struct acct_info *name_list = NULL, *tmp_name_list = NULL;
+ TALLOC_CTX *mem_ctx;
+ BOOL result = False;
+ struct acct_info *sam_grp_entries = NULL;
+ struct winbindd_domain *domain;
+
+ if (ent->got_sam_entries)
+ return False;
+
+ if (!(mem_ctx = talloc_init("get_sam_group_entries(%s)",
+ ent->domain_name))) {
+ DEBUG(1, ("get_sam_group_entries: could not create talloc context!\n"));
+ return False;
+ }
+
+ /* Free any existing group info */
+
+ SAFE_FREE(ent->sam_entries);
+ ent->num_sam_entries = 0;
+ ent->got_sam_entries = True;
+
+ /* Enumerate domain groups */
+
+ num_entries = 0;
+
+ if (!(domain = find_domain_from_name(ent->domain_name))) {
+ DEBUG(3, ("no such domain %s in get_sam_group_entries\n", ent->domain_name));
+ goto done;
+ }
+
+ /* always get the domain global groups */
+
+ status = domain->methods->enum_dom_groups(domain, mem_ctx, &num_entries, &sam_grp_entries);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("get_sam_group_entries: could not enumerate domain groups! Error: %s\n", nt_errstr(status)));
+ result = False;
+ goto done;
+ }
+
+ /* Copy entries into return buffer */
+
+ if (num_entries) {
+ if ( !(name_list = SMB_MALLOC_ARRAY(struct acct_info, num_entries)) ) {
+ DEBUG(0,("get_sam_group_entries: Failed to malloc memory for %d domain groups!\n",
+ num_entries));
+ result = False;
+ goto done;
+ }
+ memcpy( name_list, sam_grp_entries, num_entries * sizeof(struct acct_info) );
+ }
+
+ ent->num_sam_entries = num_entries;
+
+ /* get the domain local groups if we are a member of a native win2k domain
+ and are not using LDAP to get the groups */
+
+ if ( ( lp_security() != SEC_ADS && domain->native_mode
+ && domain->primary) || domain->internal )
+ {
+ DEBUG(4,("get_sam_group_entries: %s domain; enumerating local groups as well\n",
+ domain->native_mode ? "Native Mode 2k":"BUILTIN or local"));
+
+ status = domain->methods->enum_local_groups(domain, mem_ctx, &num_entries, &sam_grp_entries);
+
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(3,("get_sam_group_entries: Failed to enumerate domain local groups!\n"));
+ num_entries = 0;
+ }
+ else
+ DEBUG(4,("get_sam_group_entries: Returned %d local groups\n", num_entries));
+
+ /* Copy entries into return buffer */
+
+ if ( num_entries ) {
+ if ( !(tmp_name_list = SMB_REALLOC_ARRAY( name_list, struct acct_info, ent->num_sam_entries+num_entries)) )
+ {
+ DEBUG(0,("get_sam_group_entries: Failed to realloc more memory for %d local groups!\n",
+ num_entries));
+ result = False;
+ SAFE_FREE( name_list );
+ goto done;
+ }
+
+ name_list = tmp_name_list;
+
+ memcpy( &name_list[ent->num_sam_entries], sam_grp_entries,
+ num_entries * sizeof(struct acct_info) );
+ }
+
+ ent->num_sam_entries += num_entries;
+ }
+
+
+ /* Fill in remaining fields */
+
+ ent->sam_entries = name_list;
+ ent->sam_entry_index = 0;
+
+ result = (ent->num_sam_entries > 0);
+
+ done:
+ talloc_destroy(mem_ctx);
+
+ return result;
+}
+
+/* Fetch next group entry from ntdom database */
+
+#define MAX_GETGRENT_GROUPS 500
+
+void winbindd_getgrent(struct winbindd_cli_state *state)
+{
+ struct getent_state *ent;
+ struct winbindd_gr *group_list = NULL;
+ int num_groups, group_list_ndx = 0, i, gr_mem_list_len = 0;
+ char *new_extra_data, *gr_mem_list = NULL;
+
+ DEBUG(3, ("[%5lu]: getgrent\n", (unsigned long)state->pid));
+
+ /* Check user has enabled this */
+
+ if (!lp_winbind_enum_groups()) {
+ request_error(state);
+ return;
+ }
+
+ num_groups = MIN(MAX_GETGRENT_GROUPS, state->request.data.num_entries);
+
+ if ((state->response.extra_data = SMB_MALLOC_ARRAY(struct winbindd_gr, num_groups)) == NULL) {
+ request_error(state);
+ return;
+ }
+
+ memset(state->response.extra_data, '\0',
+ num_groups * sizeof(struct winbindd_gr) );
+
+ state->response.data.num_entries = 0;
+
+ group_list = (struct winbindd_gr *)state->response.extra_data;
+
+ if (!state->getgrent_initialized)
+ winbindd_setgrent_internal(state);
+
+ if (!(ent = state->getgrent_state)) {
+ request_error(state);
+ return;
+ }
+
+ /* Start sending back groups */
+
+ for (i = 0; i < num_groups; i++) {
+ struct acct_info *name_list = NULL;
+ fstring domain_group_name;
+ uint32 result;
+ gid_t group_gid;
+ size_t gr_mem_len;
+ char *gr_mem, *new_gr_mem_list;
+ DOM_SID group_sid;
+ struct winbindd_domain *domain;
+
+ /* Do we need to fetch another chunk of groups? */
+
+ tryagain:
+
+ DEBUG(10, ("entry_index = %d, num_entries = %d\n",
+ ent->sam_entry_index, ent->num_sam_entries));
+
+ if (ent->num_sam_entries == ent->sam_entry_index) {
+
+ while(ent && !get_sam_group_entries(ent)) {
+ struct getent_state *next_ent;
+
+ DEBUG(10, ("freeing state info for domain %s\n", ent->domain_name));
+
+ /* Free state information for this domain */
+
+ SAFE_FREE(ent->sam_entries);
+
+ next_ent = ent->next;
+ DLIST_REMOVE(state->getgrent_state, ent);
+
+ SAFE_FREE(ent);
+ ent = next_ent;
+ }
+
+ /* No more domains */
+
+ if (!ent)
+ break;
+ }
+
+ name_list = ent->sam_entries;
+
+ if (!(domain =
+ find_domain_from_name(ent->domain_name))) {
+ DEBUG(3, ("No such domain %s in winbindd_getgrent\n", ent->domain_name));
+ result = False;
+ goto done;
+ }
+
+ /* Lookup group info */
+
+ sid_copy(&group_sid, &domain->sid);
+ sid_append_rid(&group_sid, name_list[ent->sam_entry_index].rid);
+
+ if (!NT_STATUS_IS_OK(idmap_sid_to_gid(&group_sid, &group_gid, 0))) {
+
+ DEBUG(1, ("could not look up gid for group %s\n",
+ name_list[ent->sam_entry_index].acct_name));
+
+ ent->sam_entry_index++;
+ goto tryagain;
+ }
+
+ DEBUG(10, ("got gid %lu for group %lu\n", (unsigned long)group_gid,
+ (unsigned long)name_list[ent->sam_entry_index].rid));
+
+ /* Fill in group entry */
+
+ fill_domain_username(domain_group_name, ent->domain_name,
+ name_list[ent->sam_entry_index].acct_name);
+
+ result = fill_grent(&group_list[group_list_ndx],
+ ent->domain_name,
+ name_list[ent->sam_entry_index].acct_name,
+ group_gid);
+
+ /* Fill in group membership entry */
+
+ if (result) {
+ DOM_SID member_sid;
+ group_list[group_list_ndx].num_gr_mem = 0;
+ gr_mem = NULL;
+ gr_mem_len = 0;
+
+ /* Get group membership */
+ if (state->request.cmd == WINBINDD_GETGRLST) {
+ result = True;
+ } else {
+ sid_copy(&member_sid, &domain->sid);
+ sid_append_rid(&member_sid, name_list[ent->sam_entry_index].rid);
+ result = fill_grent_mem(
+ domain,
+ &member_sid,
+ SID_NAME_DOM_GRP,
+ &group_list[group_list_ndx].num_gr_mem,
+ &gr_mem, &gr_mem_len);
+ }
+ }
+
+ if (result) {
+ /* Append to group membership list */
+ new_gr_mem_list = SMB_REALLOC( gr_mem_list, gr_mem_list_len + gr_mem_len);
+
+ if (!new_gr_mem_list && (group_list[group_list_ndx].num_gr_mem != 0)) {
+ DEBUG(0, ("out of memory\n"));
+ SAFE_FREE(gr_mem_list);
+ gr_mem_list_len = 0;
+ break;
+ }
+
+ DEBUG(10, ("list_len = %d, mem_len = %d\n",
+ gr_mem_list_len, gr_mem_len));
+
+ gr_mem_list = new_gr_mem_list;
+
+ memcpy(&gr_mem_list[gr_mem_list_len], gr_mem,
+ gr_mem_len);
+
+ SAFE_FREE(gr_mem);
+
+ group_list[group_list_ndx].gr_mem_ofs =
+ gr_mem_list_len;
+
+ gr_mem_list_len += gr_mem_len;
+ }
+
+ ent->sam_entry_index++;
+
+ /* Add group to return list */
+
+ if (result) {
+
+ DEBUG(10, ("adding group num_entries = %d\n",
+ state->response.data.num_entries));
+
+ group_list_ndx++;
+ state->response.data.num_entries++;
+
+ state->response.length +=
+ sizeof(struct winbindd_gr);
+
+ } else {
+ DEBUG(0, ("could not lookup domain group %s\n",
+ domain_group_name));
+ }
+ }
+
+ /* Copy the list of group memberships to the end of the extra data */
+
+ if (group_list_ndx == 0)
+ goto done;
+
+ new_extra_data = SMB_REALLOC(
+ state->response.extra_data,
+ group_list_ndx * sizeof(struct winbindd_gr) + gr_mem_list_len);
+
+ if (!new_extra_data) {
+ DEBUG(0, ("out of memory\n"));
+ group_list_ndx = 0;
+ SAFE_FREE(state->response.extra_data);
+ SAFE_FREE(gr_mem_list);
+ request_error(state);
+ return;
+ }
+
+ state->response.extra_data = new_extra_data;
+
+ memcpy(&((char *)state->response.extra_data)
+ [group_list_ndx * sizeof(struct winbindd_gr)],
+ gr_mem_list, gr_mem_list_len);
+
+ SAFE_FREE(gr_mem_list);
+
+ state->response.length += gr_mem_list_len;
+
+ DEBUG(10, ("returning %d groups, length = %d\n",
+ group_list_ndx, gr_mem_list_len));
+
+ /* Out of domains */
+
+ done:
+
+ if (group_list_ndx > 0)
+ request_ok(state);
+ else
+ request_error(state);
+}
+
+/* List domain groups without mapping to unix ids */
+
+void winbindd_list_groups(struct winbindd_cli_state *state)
+{
+ uint32 total_entries = 0;
+ struct winbindd_domain *domain;
+ const char *which_domain;
+ char *extra_data = NULL;
+ char *ted = NULL;
+ unsigned int extra_data_len = 0, i;
+
+ DEBUG(3, ("[%5lu]: list groups\n", (unsigned long)state->pid));
+
+ /* Ensure null termination */
+ state->request.domain_name[sizeof(state->request.domain_name)-1]='\0';
+ which_domain = state->request.domain_name;
+
+ /* Enumerate over trusted domains */
+
+ for (domain = domain_list(); domain; domain = domain->next) {
+ struct getent_state groups;
+
+ /* if we have a domain name restricting the request and this
+ one in the list doesn't match, then just bypass the remainder
+ of the loop */
+
+ if ( *which_domain && !strequal(which_domain, domain->name) )
+ continue;
+
+ ZERO_STRUCT(groups);
+
+ /* Get list of sam groups */
+
+ fstrcpy(groups.domain_name, domain->name);
+
+ get_sam_group_entries(&groups);
+
+ if (groups.num_sam_entries == 0) {
+ /* this domain is empty or in an error state */
+ continue;
+ }
+
+ /* keep track the of the total number of groups seen so
+ far over all domains */
+ total_entries += groups.num_sam_entries;
+
+ /* Allocate some memory for extra data. Note that we limit
+ account names to sizeof(fstring) = 128 characters. */
+ ted = SMB_REALLOC(extra_data, sizeof(fstring) * total_entries);
+
+ if (!ted) {
+ DEBUG(0,("failed to enlarge buffer!\n"));
+ SAFE_FREE(extra_data);
+ request_error(state);
+ return;
+ } else
+ extra_data = ted;
+
+ /* Pack group list into extra data fields */
+ for (i = 0; i < groups.num_sam_entries; i++) {
+ char *group_name = ((struct acct_info *)
+ groups.sam_entries)[i].acct_name;
+ fstring name;
+
+ fill_domain_username(name, domain->name, group_name);
+ /* Append to extra data */
+ memcpy(&extra_data[extra_data_len], name,
+ strlen(name));
+ extra_data_len += strlen(name);
+ extra_data[extra_data_len++] = ',';
+ }
+
+ SAFE_FREE(groups.sam_entries);
+ }
+
+ /* Assign extra_data fields in response structure */
+ if (extra_data) {
+ extra_data[extra_data_len - 1] = '\0';
+ state->response.extra_data = extra_data;
+ state->response.length += extra_data_len;
+ }
+
+ /* No domains may have responded but that's still OK so don't
+ return an error. */
+
+ request_ok(state);
+}
+
+/* Get user supplementary groups. This is much quicker than trying to
+ invert the groups database. We merge the groups from the gids and
+ other_sids info3 fields as trusted domain, universal group
+ memberships, and nested groups (win2k native mode only) are not
+ returned by the getgroups RPC call but are present in the info3. */
+
+struct getgroups_state {
+ struct winbindd_cli_state *state;
+ struct winbindd_domain *domain;
+ char *domname;
+ char *username;
+ DOM_SID user_sid;
+
+ const DOM_SID *token_sids;
+ size_t i, num_token_sids;
+
+ gid_t *token_gids;
+ size_t num_token_gids;
+};
+
+static void getgroups_usersid_recv(void *private_data, BOOL success,
+ const DOM_SID *sid, enum SID_NAME_USE type);
+static void getgroups_tokensids_recv(void *private_data, BOOL success,
+ DOM_SID *token_sids, size_t num_token_sids);
+static void getgroups_sid2gid_recv(void *private_data, BOOL success, gid_t gid);
+
+void winbindd_getgroups(struct winbindd_cli_state *state)
+{
+ struct getgroups_state *s;
+
+ /* Ensure null termination */
+ state->request.data.username
+ [sizeof(state->request.data.username)-1]='\0';
+
+ DEBUG(3, ("[%5lu]: getgroups %s\n", (unsigned long)state->pid,
+ state->request.data.username));
+
+ /* Parse domain and username */
+
+ s = TALLOC_P(state->mem_ctx, struct getgroups_state);
+ if (s == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ request_error(state);
+ return;
+ }
+
+ s->state = state;
+
+ if (!parse_domain_user_talloc(state->mem_ctx,
+ state->request.data.username,
+ &s->domname, &s->username)) {
+ DEBUG(0, ("Could not parse domain user: %s\n",
+ state->request.data.username));
+ request_error(state);
+ return;
+ }
+
+ /* Get info for the domain */
+
+ s->domain = find_domain_from_name_noinit(s->domname);
+
+ if (s->domain == NULL) {
+ DEBUG(7, ("could not find domain entry for domain %s\n",
+ s->domname));
+ request_error(state);
+ return;
+ }
+
+ if ( s->domain->primary && lp_winbind_trusted_domains_only()) {
+ DEBUG(7,("winbindd_getpwnam: My domain -- rejecting "
+ "getgroups() for %s\\%s.\n", s->domname,
+ s->username));
+ request_error(state);
+ return;
+ }
+
+ /* Get rid and name type from name. The following costs 1 packet */
+
+ winbindd_lookupname_async(state->mem_ctx, s->domname, s->username,
+ getgroups_usersid_recv, s);
+}
+
+static void getgroups_usersid_recv(void *private_data, BOOL success,
+ const DOM_SID *sid, enum SID_NAME_USE type)
+{
+ struct getgroups_state *s = private_data;
+
+ if ((!success) ||
+ ((type != SID_NAME_USER) && (type != SID_NAME_COMPUTER))) {
+ request_error(s->state);
+ return;
+ }
+
+ sid_copy(&s->user_sid, sid);
+
+ winbindd_gettoken_async(s->state->mem_ctx, &s->user_sid,
+ getgroups_tokensids_recv, s);
+}
+
+static void getgroups_tokensids_recv(void *private_data, BOOL success,
+ DOM_SID *token_sids, size_t num_token_sids)
+{
+ struct getgroups_state *s = private_data;
+
+ /* We need at least the user sid and the primary group in the token,
+ * otherwise it's an error */
+
+ if ((!success) || (num_token_sids < 2)) {
+ request_error(s->state);
+ return;
+ }
+
+ s->token_sids = token_sids;
+ s->num_token_sids = num_token_sids;
+ s->i = 0;
+
+ s->token_gids = NULL;
+ s->num_token_gids = 0;
+
+ getgroups_sid2gid_recv(s, False, 0);
+}
+
+static void getgroups_sid2gid_recv(void *private_data, BOOL success, gid_t gid)
+{
+ struct getgroups_state *s = private_data;
+
+ if (success)
+ add_gid_to_array_unique(NULL, gid,
+ &s->token_gids,
+ &s->num_token_gids);
+
+ if (s->i < s->num_token_sids) {
+ const DOM_SID *sid = &s->token_sids[s->i];
+ s->i += 1;
+
+ if (sid_equal(sid, &s->user_sid)) {
+ getgroups_sid2gid_recv(s, False, 0);
+ return;
+ }
+
+ winbindd_sid2gid_async(s->state->mem_ctx, sid,
+ getgroups_sid2gid_recv, s);
+ return;
+ }
+
+ s->state->response.data.num_entries = s->num_token_gids;
+ s->state->response.extra_data = s->token_gids;
+ s->state->response.length += s->num_token_gids * sizeof(gid_t);
+ request_ok(s->state);
+}
+
+/* Get user supplementary sids. This is equivalent to the
+ winbindd_getgroups() function but it involves a SID->SIDs mapping
+ rather than a NAME->SID->SIDS->GIDS mapping, which means we avoid
+ idmap. This call is designed to be used with applications that need
+ to do ACL evaluation themselves. Note that the cached info3 data is
+ not used
+
+ this function assumes that the SID that comes in is a user SID. If
+ you pass in another type of SID then you may get unpredictable
+ results.
+*/
+
+static void getusersids_recv(void *private_data, BOOL success, DOM_SID *sids,
+ size_t num_sids);
+
+void winbindd_getusersids(struct winbindd_cli_state *state)
+{
+ DOM_SID *user_sid;
+
+ /* Ensure null termination */
+ state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
+
+ user_sid = TALLOC_P(state->mem_ctx, DOM_SID);
+ if (user_sid == NULL) {
+ DEBUG(1, ("talloc failed\n"));
+ request_error(state);
+ return;
+ }
+
+ if (!string_to_sid(user_sid, state->request.data.sid)) {
+ DEBUG(1, ("Could not get convert sid %s from string\n",
+ state->request.data.sid));
+ request_error(state);
+ return;
+ }
+
+ winbindd_gettoken_async(state->mem_ctx, user_sid, getusersids_recv,
+ state);
+}
+
+static void getusersids_recv(void *private_data, BOOL success, DOM_SID *sids,
+ size_t num_sids)
+{
+ struct winbindd_cli_state *state = private_data;
+ char *ret = NULL;
+ unsigned ofs, ret_size = 0;
+ size_t i;
+
+ if (!success) {
+ request_error(state);
+ return;
+ }
+
+ /* work out the response size */
+ for (i = 0; i < num_sids; i++) {
+ const char *s = sid_string_static(&sids[i]);
+ ret_size += strlen(s) + 1;
+ }
+
+ /* build the reply */
+ ret = SMB_MALLOC(ret_size);
+ if (!ret) {
+ DEBUG(0, ("malloc failed\n"));
+ request_error(state);
+ return;
+ }
+ ofs = 0;
+ for (i = 0; i < num_sids; i++) {
+ const char *s = sid_string_static(&sids[i]);
+ safe_strcpy(ret + ofs, s, ret_size - ofs - 1);
+ ofs += strlen(ret+ofs) + 1;
+ }
+
+ /* Send data back to client */
+ state->response.data.num_entries = num_sids;
+ state->response.extra_data = ret;
+ state->response.length += ret_size;
+ request_ok(state);
+}
+
+void winbindd_getuserdomgroups(struct winbindd_cli_state *state)
+{
+ DOM_SID user_sid;
+ struct winbindd_domain *domain;
+
+ /* Ensure null termination */
+ state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
+
+ if (!string_to_sid(&user_sid, state->request.data.sid)) {
+ DEBUG(1, ("Could not get convert sid %s from string\n",
+ state->request.data.sid));
+ request_error(state);
+ return;
+ }
+
+ /* Get info for the domain */
+ if ((domain = find_domain_from_sid_noinit(&user_sid)) == NULL) {
+ DEBUG(0,("could not find domain entry for sid %s\n",
+ sid_string_static(&user_sid)));
+ request_error(state);
+ return;
+ }
+
+ sendto_domain(state, domain);
+}
+
+enum winbindd_result winbindd_dual_getuserdomgroups(struct winbindd_domain *domain,
+ struct winbindd_cli_state *state)
+{
+ DOM_SID user_sid;
+ NTSTATUS status;
+
+ char *sidstring;
+ ssize_t len;
+ DOM_SID *groups;
+ uint32 num_groups;
+
+ /* Ensure null termination */
+ state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
+
+ if (!string_to_sid(&user_sid, state->request.data.sid)) {
+ DEBUG(1, ("Could not get convert sid %s from string\n",
+ state->request.data.sid));
+ return WINBINDD_ERROR;
+ }
+
+ status = domain->methods->lookup_usergroups(domain, state->mem_ctx,
+ &user_sid, &num_groups,
+ &groups);
+ if (!NT_STATUS_IS_OK(status))
+ return WINBINDD_ERROR;
+
+ if (num_groups == 0) {
+ state->response.data.num_entries = 0;
+ state->response.extra_data = NULL;
+ return WINBINDD_OK;
+ }
+
+ if (!print_sidlist(NULL, groups, num_groups, &sidstring, &len)) {
+ DEBUG(0, ("malloc failed\n"));
+ return WINBINDD_ERROR;
+ }
+
+ state->response.extra_data = sidstring;
+ state->response.length += len+1;
+ state->response.data.num_entries = num_groups;
+
+ return WINBINDD_OK;
+}
+
projects / samba / blobdiff