/*
- Unix SMB/Netbios implementation.
- Version 2.0
+ 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.
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
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
+
+/*********************************************************************
+*********************************************************************/
+
+static int gr_mem_buffer( char **buffer, char **members, int num_members )
+{
+ int i;
+ int len = 0;
+ int idx = 0;
+
+ if ( num_members == 0 ) {
+ *buffer = NULL;
+ return 0;
+ }
+
+ for ( i=0; i<num_members; i++ )
+ len += strlen(members[i])+1;
+
+ *buffer = SMB_XMALLOC_ARRAY(char, len);
+ for ( i=0; i<num_members; i++ ) {
+ snprintf( &(*buffer)[idx], len-idx, "%s,", members[i]);
+ idx += strlen(members[i])+1;
+ }
+ /* terminate with NULL */
+ (*buffer)[len-1] = '\0';
+
+ return len;
+}
+
+/***************************************************************
+ Empty static struct for negative caching.
+****************************************************************/
+
/* Fill a grent structure from various other information */
-static BOOL fill_grent(struct winbindd_gr *gr, char *gr_name,
- gid_t unix_gid)
+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, gr_name, sizeof(gr->gr_name) - 1);
+ 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_rid */
+/* Fill in the group membership field of a NT group given by group_sid */
static BOOL fill_grent_mem(struct winbindd_domain *domain,
- uint32 group_rid,
+ DOM_SID *group_sid,
enum SID_NAME_USE group_name_type,
int *num_gr_mem, char **gr_mem, int *gr_mem_len)
{
- uint32 *rid_mem = NULL, num_names = 0;
+ DOM_SID **sid_mem = NULL;
+ uint32 num_names = 0;
uint32 *name_types = NULL;
- int buf_len, buf_ndx, i;
+ unsigned int buf_len, buf_ndx, i;
char **names = NULL, *buf;
BOOL result = False;
-
- if (!num_gr_mem || !gr_mem || !gr_mem_len) return 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, ("fill_grent_mem(): group %s rid 0x%x\n",
- domain ? domain->name : "NULL", group_rid));
+ 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) {
- DEBUG(1, ("fill_grent_mem(): rid %d in domain %s isn't a "
- "domain group\n", group_rid, domain->name));
- return False;
+ 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)));
- if (!winbindd_lookup_groupmem(domain, group_rid, &num_names,
- &rid_mem, &names, &name_types)) {
-
- DEBUG(1, ("fill_grent_mem(): could not lookup membership "
- "for group rid %d in domain %s\n",
- group_rid, domain->name));
-
- return False;
+ goto done;
}
- DEBUG(10, ("fill_grent_mem(): looked up %d names\n", num_names));
+ DEBUG(10, ("looked up %d names\n", num_names));
if (DEBUGLEVEL >= 10) {
- for (i = 0; i < num_names; i++) {
- DEBUG(10, ("\t%20s %x %d\n", names[i], rid_mem[i],
+ for (i = 0; i < num_names; i++)
+ DEBUG(10, ("\t%20s %s %d\n", names[i], sid_to_string(sid_string, sid_mem[i]),
name_types[i]));
- }
}
/* Add members to list */
the_name = names[i];
- DEBUG(10, ("fill_grent_mem(): processing name %s\n", the_name));
+ DEBUG(10, ("processing name %s\n", the_name));
- /* Only add domain users */
+ /* FIXME: need to cope with groups within groups. These
+ occur in Universal groups on a Windows 2000 native mode
+ server. */
- if (name_types[i] != SID_NAME_USER) {
- DEBUG(3, ("fill_grent_mem(): name %s isn't a domain "
- "user\n", the_name));
- continue;
- }
+ /* make sure to allow machine accounts */
- /* Don't bother with machine accounts */
-
- if (the_name[strlen(the_name) - 1] == '$') {
- DEBUG(10, ("fill_grent_mem(): %s is machine account\n",
- the_name));
+ 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 */
- snprintf(name, sizeof(name), "%s%s%s", domain->name,
- lp_winbind_separator(), the_name);
+ fill_domain_username(name, domain->name, the_name);
len = strlen(name);
if (!buf) {
buf_len += len + 1; /* List is comma separated */
(*num_gr_mem)++;
- DEBUG(10, ("fill_grent_mem(): buf_len + %d = %d\n", len + 1,
- buf_len));
+ DEBUG(10, ("buf_len + %d = %d\n", len + 1, buf_len));
} else {
- DEBUG(10, ("fill_grent_mem(): appending %s at index %d\n",
- name, len));
+ DEBUG(10, ("appending %s at ndx %d\n", name, len));
safe_strcpy(&buf[buf_ndx], name, len);
buf_ndx += len;
buf[buf_ndx] = ',';
/* Allocate buffer */
- if (!buf) {
- if (!(buf = malloc(buf_len))) {
- DEBUG(1, ("fill_grent_mem(): out of memory\n"));
+ if (!buf && buf_len != 0) {
+ if (!(buf = SMB_MALLOC(buf_len))) {
+ DEBUG(1, ("out of memory\n"));
result = False;
- goto cleanup;
+ goto done;
}
memset(buf, 0, buf_len);
goto again;
*gr_mem = buf;
*gr_mem_len = buf_len;
- DEBUG(10, ("fill_grent_mem(): num_mem = %d, len = %d, mem = %s\n", *num_gr_mem,
- buf_len, buf));
-
+ DEBUG(10, ("num_mem = %d, len = %d, mem = %s\n", *num_gr_mem,
+ buf_len, *num_gr_mem ? buf : "NULL"));
result = True;
- cleanup:
-
- /* Free memory allocated in winbindd_lookup_groupmem() */
-
- safe_free(name_types);
- safe_free(rid_mem);
-
- free_char_array(num_names, names);
+done:
+
+ talloc_destroy(mem_ctx);
- DEBUG(10, ("fill_grent_mem(): returning %d\n", result));
+ DEBUG(10, ("fill_grent_mem returning %d\n", result));
return result;
}
/* Return a group structure from a group name */
-enum winbindd_result winbindd_getgrnam_from_group(struct winbindd_cli_state
- *state)
+enum winbindd_result winbindd_getgrnam(struct winbindd_cli_state *state)
{
DOM_SID group_sid;
+ WINBINDD_GR *grp;
struct winbindd_domain *domain;
enum SID_NAME_USE name_type;
- uint32 group_rid;
- fstring name_domain, name_group, name;
+ fstring name_domain, name_group;
char *tmp, *gr_mem;
+ int gr_mem_len;
gid_t gid;
- int extra_data_len, gr_mem_len;
- DEBUG(3, ("[%5d]: getgrnam %s\n", state->pid,
+ /* 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);
- /* Reject names that don't have a domain - i.e name_domain contains
- the entire name. */
+ /* if no domain or our local domain, then do a local tdb search */
+
+ if ( (!*name_domain || strequal(name_domain, get_global_sam_name())) &&
+ ((grp = wb_getgrnam(name_group)) != NULL) ) {
- if (strequal(name_group, "")) {
- return WINBINDD_ERROR;
- }
+ char *buffer = NULL;
+
+ memcpy( &state->response.data.gr, grp, sizeof(WINBINDD_GR) );
+
+ gr_mem_len = gr_mem_buffer( &buffer, grp->gr_mem, grp->num_gr_mem );
+
+ state->response.data.gr.gr_mem_ofs = 0;
+ state->response.length += gr_mem_len;
+ state->response.extra_data = buffer; /* give the memory away */
+
+ return WINBINDD_OK;
+ }
+
+ /* 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(0, ("getgrname_from_group(): could not get domain "
- "sid for domain %s\n", name_domain));
+ DEBUG(3, ("could not get domain sid for domain %s\n",
+ name_domain));
return WINBINDD_ERROR;
}
-
- if (!domain_handles_open(domain)) {
+ /* 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));
return WINBINDD_ERROR;
}
- /* Check for cached group entry */
-
- if (winbindd_fetch_group_cache_entry(name_domain, name_group,
- &state->response.data.gr,
- &state->response.extra_data,
- &extra_data_len)) {
- state->response.length += extra_data_len;
- return WINBINDD_OK;
- }
-
- snprintf(name, sizeof(name), "%s\\%s", name_domain, name_group);
-
/* Get rid and name type from name */
- if (!winbindd_lookup_sid_by_name(name, &group_sid, &name_type)) {
+ if (!winbindd_lookup_sid_by_name(domain, domain->name, name_group, &group_sid,
+ &name_type)) {
DEBUG(1, ("group %s in domain %s does not exist\n",
name_group, name_domain));
return WINBINDD_ERROR;
}
- if ((name_type != SID_NAME_ALIAS) && (name_type != SID_NAME_DOM_GRP)) {
- DEBUG(1, ("from_group: name '%s' is not a local or domain "
- "group: %d\n", name_group, name_type));
+ 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",
+ name_group, name_type));
return WINBINDD_ERROR;
}
- /* Fill in group structure */
-
- sid_split_rid(&group_sid, &group_rid);
-
- if (!winbindd_idmap_get_gid_from_rid(domain->name, group_rid, &gid)) {
- DEBUG(1, ("error sursing unix gid for sid\n"));
+ if (!NT_STATUS_IS_OK(idmap_sid_to_gid(&group_sid, &gid, 0))) {
+ DEBUG(1, ("error converting unix gid to sid\n"));
return WINBINDD_ERROR;
}
- if (!fill_grent(&state->response.data.gr,
- state->request.data.groupname, gid) ||
- !fill_grent_mem(domain, group_rid, name_type,
+ 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)) {
return WINBINDD_ERROR;
state->response.length += gr_mem_len;
state->response.extra_data = gr_mem;
- /* Update cached group info */
-
- winbindd_store_group_cache_entry(name_domain, name_group,
- &state->response.data.gr,
- state->response.extra_data,
- gr_mem_len);
-
return WINBINDD_OK;
}
/* Return a group structure from a gid number */
-enum winbindd_result winbindd_getgrnam_from_gid(struct winbindd_cli_state
- *state)
+enum winbindd_result winbindd_getgrgid(struct winbindd_cli_state *state)
{
struct winbindd_domain *domain;
+ WINBINDD_GR *grp;
DOM_SID group_sid;
enum SID_NAME_USE name_type;
+ fstring dom_name;
fstring group_name;
- uint32 group_rid;
- int extra_data_len, gr_mem_len;
+ int 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)) {
+ (state->request.data.gid > server_state.gid_high))
return WINBINDD_ERROR;
- }
-
- DEBUG(3, ("[%5d]: getgrgid %d\n", state->pid,
- state->request.data.gid));
- /* Get rid from gid */
-
- if (!winbindd_idmap_get_rid_from_gid(state->request.data.gid,
- &group_rid, &domain)) {
- DEBUG(1, ("Could not convert gid %d to rid\n",
- state->request.data.gid));
- return WINBINDD_ERROR;
+ /* alway try local tdb lookup first */
+ if ( ( grp=wb_getgrgid(state->request.data.gid)) != NULL ) {
+ char *buffer = NULL;
+
+ memcpy( &state->response.data.gr, grp, sizeof(WINBINDD_GR) );
+
+ gr_mem_len = gr_mem_buffer( &buffer, grp->gr_mem, grp->num_gr_mem );
+
+ state->response.data.gr.gr_mem_ofs = 0;
+ state->response.length += gr_mem_len;
+ state->response.extra_data = buffer; /* give away the memory */
+
+ return WINBINDD_OK;
}
- if (!domain_handles_open(domain)) {
+ /* Get rid from gid */
+ if (!NT_STATUS_IS_OK(idmap_gid_to_sid(&group_sid, state->request.data.gid))) {
+ DEBUG(1, ("could not convert gid %lu to rid\n",
+ (unsigned long)state->request.data.gid));
return WINBINDD_ERROR;
}
- /* Try a cached entry */
+ /* Get name from sid */
- if (winbindd_fetch_gid_cache_entry(domain->name,
- state->request.data.gid,
- &state->response.data.gr,
- &state->response.extra_data,
- &extra_data_len)) {
- state->response.length += extra_data_len;
- return WINBINDD_OK;
+ if (!winbindd_lookup_name_by_sid(&group_sid, dom_name, group_name, &name_type)) {
+ DEBUG(1, ("could not lookup sid\n"));
+ return WINBINDD_ERROR;
}
- /* Get sid from gid */
+ /* Fill in group structure */
- sid_copy(&group_sid, &domain->sid);
- sid_append_rid(&group_sid, group_rid);
+ domain = find_domain_from_sid(&group_sid);
- if (!winbindd_lookup_name_by_sid(&group_sid, group_name, &name_type)) {
- DEBUG(1, ("Could not lookup sid\n"));
+ if (!domain) {
+ DEBUG(1,("Can't find domain from sid\n"));
return WINBINDD_ERROR;
}
- if (strcmp(lp_winbind_separator(),"\\")) {
- string_sub(group_name, "\\", lp_winbind_separator(),
- sizeof(fstring));
- }
-
- if (!((name_type == SID_NAME_ALIAS) ||
- (name_type == SID_NAME_DOM_GRP))) {
- DEBUG(1, ("from_gid: name '%s' is not a local or domain "
- "group: %d\n", group_name, name_type));
+ 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));
return WINBINDD_ERROR;
}
- /* Fill in group structure */
-
- if (!fill_grent(&state->response.data.gr, group_name,
+ if (!fill_grent(&state->response.data.gr, dom_name, group_name,
state->request.data.gid) ||
- !fill_grent_mem(domain, group_rid, name_type,
+ !fill_grent_mem(domain, &group_sid, name_type,
&state->response.data.gr.num_gr_mem,
- &gr_mem, &gr_mem_len)) {
+ &gr_mem, &gr_mem_len))
return WINBINDD_ERROR;
- }
-
/* Group membership lives at start of extra data */
state->response.length += gr_mem_len;
state->response.extra_data = gr_mem;
- /* Update cached group info */
-
- winbindd_store_gid_cache_entry(domain->name, state->request.data.gid,
- &state->response.data.gr,
- state->response.extra_data,
- gr_mem_len);
-
return WINBINDD_OK;
}
enum winbindd_result winbindd_setgrent(struct winbindd_cli_state *state)
{
- struct winbindd_domain *tmp;
+ struct winbindd_domain *domain;
- DEBUG(3, ("[%5d]: setgrent\n", state->pid));
+ DEBUG(3, ("[%5lu]: setgrent\n", (unsigned long)state->pid));
- if (state == NULL) return WINBINDD_ERROR;
-
/* Check user has enabled this */
- if (!lp_winbind_enum_groups()) {
+ if (!lp_winbind_enum_groups())
return WINBINDD_ERROR;
- }
/* Free old static data if it exists */
/* Create sam pipes for each domain we know about */
- for (tmp = domain_list; tmp != NULL; tmp = tmp->next) {
+ for (domain = domain_list(); domain != NULL; domain = domain->next) {
struct getent_state *domain_state;
- /* Skip domains other than WINBINDD_DOMAIN environment
- variable */
+ /* 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 ((strcmp(state->request.domain, "") != 0) &&
- !check_domain_env(state->request.domain, tmp->name)) {
+ if ( lp_winbind_trusted_domains_only() && domain->primary )
+ {
continue;
}
+
- /* Create a state record for this domain */
-
- if ((domain_state = (struct getent_state *)
- malloc(sizeof(struct getent_state))) == NULL) {
-
+ if ((domain_state = SMB_MALLOC_P(struct getent_state)) == NULL) {
+ DEBUG(1, ("winbindd_setgrent: malloc failed for domain_state!\n"));
return WINBINDD_ERROR;
}
ZERO_STRUCTP(domain_state);
+ fstrcpy(domain_state->domain_name, domain->name);
+
/* Add to list of open domains */
- domain_state->domain = tmp;
DLIST_ADD(state->getgrent_state, domain_state);
}
+ state->getgrent_initialized = True;
+
return WINBINDD_OK;
}
enum winbindd_result winbindd_endgrent(struct winbindd_cli_state *state)
{
- DEBUG(3, ("[%5d]: endgrent\n", state->pid));
-
- if (state == NULL) return WINBINDD_ERROR;
+ DEBUG(3, ("[%5lu]: endgrent\n", (unsigned long)state->pid));
free_getent_state(state->getgrent_state);
+ state->getgrent_initialized = False;
state->getgrent_state = NULL;
return WINBINDD_OK;
The dispinfo_ndx field is incremented to the index of the next group to
fetch. Return True if some groups were returned, False otherwise. */
-#define MAX_FETCH_SAM_ENTRIES 100
-
static BOOL get_sam_group_entries(struct getent_state *ent)
{
NTSTATUS status;
uint32 num_entries;
- struct acct_info *name_list = NULL;
+ 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_all_sam_entries) {
+ if (ent->got_sam_entries)
return False;
- }
-#if 0
- if (winbindd_fetch_group_cache(ent->domain->name,
- &ent->sam_entries,
- &ent->num_sam_entries)) {
- return True;
- }
-#endif
-
- /* Fetch group entries */
-
- if (!domain_handles_open(ent->domain)) {
+ 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 */
- if (ent->sam_entries) {
- free(ent->sam_entries);
- ent->sam_entries = NULL;
- ent->num_sam_entries = 0;
- }
-
- /* Enumerate domain groups */
-
- do {
- struct acct_info *sam_grp_entries = NULL;
+ SAFE_FREE(ent->sam_entries);
+ ent->num_sam_entries = 0;
+ ent->got_sam_entries = True;
- num_entries = 0;
+ /* Enumerate domain groups */
- status = wb_samr_enum_dom_groups(&ent->domain->sam_dom_handle,
- &ent->grp_query_start_ndx,
- 0x8000, /* buffer size? */
- (struct acct_info **)
- &sam_grp_entries,
- &num_entries);
+ num_entries = 0;
- /* Copy entries into return buffer */
+ 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;
+ }
- if (num_entries) {
+ /* always get the domain global groups */
- name_list = Realloc(name_list,
- sizeof(struct acct_info) *
- (ent->num_sam_entries +
- num_entries));
+ 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;
+ }
- memcpy(&name_list[ent->num_sam_entries],
- sam_grp_entries,
- num_entries * sizeof(struct acct_info));
+ /* Copy entries into return buffer */
- safe_free(sam_grp_entries);
+ 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;
}
-
- ent->num_sam_entries += num_entries;
+ 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: Native Mode 2k domain; enumerating local groups as well\n"));
- if (NT_STATUS_V(status) != NT_STATUS_V(STATUS_MORE_ENTRIES))
- break;
-
- } while (ent->num_sam_entries < MAX_FETCH_SAM_ENTRIES);
+ status = domain->methods->enum_local_groups(domain, mem_ctx, &num_entries, &sam_grp_entries);
-#if 0
- /* Fill cache with received entries */
-
- winbindd_store_group_cache(ent->domain->name, ent->sam_entries,
- ent->num_sam_entries);
-#endif
+ 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;
- ent->got_all_sam_entries = (NT_STATUS_V(status) != NT_STATUS_V(STATUS_MORE_ENTRIES));
- return ent->num_sam_entries > 0;
+ result = (ent->num_sam_entries > 0);
+
+ done:
+ talloc_destroy(mem_ctx);
+
+ return result;
}
/* Fetch next group entry from ntdom database */
struct getent_state *ent;
struct winbindd_gr *group_list = NULL;
int num_groups, group_list_ndx = 0, i, gr_mem_list_len = 0;
- char *sep, *new_extra_data, *gr_mem_list = NULL;
-
- DEBUG(3, ("[%5d]: getgrent\n", state->pid));
+ char *new_extra_data, *gr_mem_list = NULL;
- if (state == NULL) return WINBINDD_ERROR;
+ DEBUG(3, ("[%5lu]: getgrent\n", (unsigned long)state->pid));
/* Check user has enabled this */
- if (!lp_winbind_enum_groups()) {
+ if (!lp_winbind_enum_groups())
return WINBINDD_ERROR;
- }
num_groups = MIN(MAX_GETGRENT_GROUPS, state->request.data.num_entries);
- if ((state->response.extra_data =
- malloc(num_groups * sizeof(struct winbindd_gr))) == NULL) {
+ if ((state->response.extra_data = SMB_MALLOC_ARRAY(struct winbindd_gr, num_groups)) == NULL)
return WINBINDD_ERROR;
- }
+
+ 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;
- sep = lp_winbind_separator();
- if (!(ent = state->getgrent_state)) {
+ if (!state->getgrent_initialized)
+ winbindd_setgrent(state);
+
+ if (!(ent = state->getgrent_state))
return WINBINDD_ERROR;
- }
/* Start sending back groups */
fstring domain_group_name;
uint32 result;
gid_t group_gid;
-
+ int 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, ("getgrent(): entry_index = %d, num_entries = %d\n",
+ 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, ("getgrent(): freeing state info for "
- "domain %s\n", ent->domain->name));
+ DEBUG(10, ("freeing state info for domain %s\n", ent->domain_name));
/* Free state information for this domain */
- safe_free(ent->sam_entries);
- ent->sam_entries = NULL;
+ SAFE_FREE(ent->sam_entries);
next_ent = ent->next;
DLIST_REMOVE(state->getgrent_state, ent);
- free(ent);
+ SAFE_FREE(ent);
ent = next_ent;
}
/* No more domains */
- if (!ent) break;
+ 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 */
- if (!winbindd_idmap_get_gid_from_rid(
- ent->domain->name,
- name_list[ent->sam_entry_index].rid,
- &group_gid)) {
+ 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, ("getgrent(): could not look up gid for group %s\n",
+ 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, ("getgrent(): got gid %d for group %x\n", group_gid,
- name_list[ent->sam_entry_index].rid));
+ 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 */
- slprintf(domain_group_name, sizeof(domain_group_name) - 1,
- "%s%s%s", ent->domain->name, lp_winbind_separator(),
+ 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],
- domain_group_name, group_gid);
+ ent->domain_name,
+ name_list[ent->sam_entry_index].acct_name,
+ group_gid);
/* Fill in group membership entry */
if (result) {
- int gr_mem_len;
- char *gr_mem, *new_gr_mem_list;
-
- /* Get group membership */
-
- result = fill_grent_mem(
- ent->domain,
- name_list[ent->sam_entry_index].rid,
- SID_NAME_DOM_GRP,
- &group_list[group_list_ndx].num_gr_mem,
- &gr_mem, &gr_mem_len);
+ 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 = Realloc(
- gr_mem_list,
- gr_mem_list_len + gr_mem_len);
+ 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, ("getgrent(): out of memory\n"));
- free(gr_mem_list);
+ DEBUG(0, ("out of memory\n"));
+ SAFE_FREE(gr_mem_list);
gr_mem_list_len = 0;
break;
}
- DEBUG(10, ("getgrent(): list_len = %d, mem_len = %d\n",
+ 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);
+ SAFE_FREE(gr_mem);
group_list[group_list_ndx].gr_mem_ofs =
gr_mem_list_len;
if (result) {
- DEBUG(10, ("getgrent(): adding group num_entries = %d\n",
+ DEBUG(10, ("adding group num_entries = %d\n",
state->response.data.num_entries));
group_list_ndx++;
/* Copy the list of group memberships to the end of the extra data */
- if (group_list_ndx == 0) {
+ if (group_list_ndx == 0)
goto done;
- }
- new_extra_data = Realloc(
+ 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);
- state->response.extra_data = NULL;
- safe_free(gr_mem_list);
+ SAFE_FREE(state->response.extra_data);
+ SAFE_FREE(gr_mem_list);
return WINBINDD_ERROR;
}
[group_list_ndx * sizeof(struct winbindd_gr)],
gr_mem_list, gr_mem_list_len);
- safe_free(gr_mem_list);
+ SAFE_FREE(gr_mem_list);
state->response.length += gr_mem_list_len;
- DEBUG(10, ("getgrent(): returning %d groups, length = %d\n",
+ DEBUG(10, ("returning %d groups, length = %d\n",
group_list_ndx, gr_mem_list_len));
/* Out of domains */
done:
+
return (group_list_ndx > 0) ? WINBINDD_OK : WINBINDD_ERROR;
}
enum winbindd_result winbindd_list_groups(struct winbindd_cli_state *state)
{
- uint32 total_entries = 0;
- uint32 num_domain_entries;
- struct winbindd_domain *domain;
- struct getent_state groups;
+ uint32 total_entries = 0;
+ struct winbindd_domain *domain;
+ const char *which_domain;
char *extra_data = NULL;
char *ted = NULL;
- int extra_data_len = 0, i;
- void *sam_entries = NULL;
+ unsigned int extra_data_len = 0, i;
- DEBUG(3, ("[%5d]: list groups\n", state->pid));
+ DEBUG(3, ("[%5lu]: list groups\n", (unsigned long)state->pid));
- /* Enumerate over trusted domains */
- ZERO_STRUCT(groups);
- for (domain = domain_list; domain; domain = domain->next) {
+ /* Ensure null termination */
+ state->request.domain_name[sizeof(state->request.domain_name)-1]='\0';
+ which_domain = state->request.domain_name;
+
+ /* Enumerate over trusted domains */
- /* Skip domains other than WINBINDD_DOMAIN environment
- variable */
+ for (domain = domain_list(); domain; domain = domain->next) {
+ struct getent_state groups;
- if ((strcmp(state->request.domain, "") != 0) &&
- !check_domain_env(state->request.domain, domain->name)) {
+ /* 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);
- ZERO_STRUCT(groups);
- groups.domain = domain;
-
- /*
- * iterate through all groups
- * total_entries : maintains a total count over **all domains**
- * num_domain_entries : is the running count for this domain
- */
-
- num_domain_entries = 0;
- while (get_sam_group_entries(&groups))
- {
- int new_size;
- int offset;
-
- offset = sizeof(struct acct_info) * num_domain_entries;
- new_size = sizeof(struct acct_info)
- * (groups.num_sam_entries + num_domain_entries);
- sam_entries = Realloc(sam_entries, new_size);
+ get_sam_group_entries(&groups);
- if (!sam_entries)
- return WINBINDD_ERROR;
-
- num_domain_entries += groups.num_sam_entries;
- memcpy (((char *)sam_entries)+offset, groups.sam_entries,
- sizeof(struct acct_info) * groups.num_sam_entries);
-
- groups.sam_entries = NULL;
- groups.num_sam_entries = 0;
- }
-
- /* skip remainder of loop if we idn;t retrieve any groups */
-
- if (num_domain_entries == 0)
+ if (groups.num_sam_entries == 0) {
+ /* this domain is empty or in an error state */
continue;
-
- /* setup the groups struct to contain all the groups
- retrieved for this domain */
-
- groups.num_sam_entries = num_domain_entries;
- groups.sam_entries = sam_entries;
+ }
/* 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 = Realloc(extra_data, sizeof(fstring) * total_entries);
+ account names to sizeof(fstring) = 128 characters. */
+ ted = SMB_REALLOC(extra_data, sizeof(fstring) * total_entries);
if (!ted) {
- DEBUG(0,("winbindd_list_groups: failed to enlarge buffer!\n"));
- if (extra_data)
- free(extra_data);
+ DEBUG(0,("failed to enlarge buffer!\n"));
+ SAFE_FREE(extra_data);
return WINBINDD_ERROR;
} 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;
- /* Convert unistring to ascii */
-
- snprintf(name, sizeof(name), "%s%s%s", domain->name,
- lp_winbind_separator(), group_name);
-
- /* Append to extra data */
-
- memcpy(&extra_data[extra_data_len], name, strlen(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;
/* No domains may have responded but that's still OK so don't
return an error. */
- return WINBINDD_OK;
+ return WINBINDD_OK;
+}
+
+static void add_local_gids_from_sid(DOM_SID *sid, gid_t **gids, int *num)
+{
+ gid_t gid;
+ DOM_SID *aliases;
+ int j, num_aliases;
+
+ DEBUG(10, ("Adding local gids from SID: %s\n",
+ sid_string_static(sid)));
+
+ /* Don't expand aliases if not explicitly activated -- for now
+ -- jerry */
+
+ if (!lp_winbind_nested_groups())
+ return;
+
+ /* Add nested group memberships */
+
+ if (!pdb_enum_alias_memberships(sid, 1, &aliases, &num_aliases))
+ return;
+
+ for (j=0; j<num_aliases; j++) {
+ enum SID_NAME_USE type;
+
+ if (!local_sid_to_gid(&gid, &aliases[j], &type)) {
+ DEBUG(1, ("Got an alias membership with no alias\n"));
+ continue;
+ }
+
+ if ((type != SID_NAME_ALIAS) && (type != SID_NAME_WKN_GRP)) {
+ DEBUG(1, ("Got an alias membership in a non-alias\n"));
+ continue;
+ }
+
+ add_gid_to_array_unique(gid, gids, num);
+ }
+ SAFE_FREE(aliases);
+}
+
+static void add_gids_from_user_sid(DOM_SID *sid, gid_t **gids, int *num)
+{
+ DEBUG(10, ("Adding gids from user SID: %s\n",
+ sid_string_static(sid)));
+
+ add_local_gids_from_sid(sid, gids, num);
+}
+
+static void add_gids_from_group_sid(DOM_SID *sid, gid_t **gids, int *num)
+{
+ gid_t gid;
+
+ DEBUG(10, ("Adding gids from group SID: %s\n",
+ sid_string_static(sid)));
+
+ if (NT_STATUS_IS_OK(idmap_sid_to_gid(sid, &gid, 0)))
+ add_gid_to_array_unique(gid, gids, num);
+
+ add_local_gids_from_sid(sid, gids, num);
}
/* Get user supplementary groups. This is much quicker than trying to
- invert the groups database. */
+ 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. */
enum winbindd_result winbindd_getgroups(struct winbindd_cli_state *state)
{
- fstring name_domain, name_user, name;
- DOM_SID user_sid;
+ fstring name_domain, name_user;
+ DOM_SID user_sid, group_sid;
enum SID_NAME_USE name_type;
- uint32 user_rid, num_groups, num_gids;
- DOM_GID *user_groups = NULL;
+ uint32 num_groups = 0;
+ uint32 num_gids = 0;
+ NTSTATUS status;
+ DOM_SID **user_grpsids;
struct winbindd_domain *domain;
- enum winbindd_result result;
- gid_t *gid_list;
- int i;
+ enum winbindd_result result = WINBINDD_ERROR;
+ gid_t *gid_list = NULL;
+ unsigned int i;
+ TALLOC_CTX *mem_ctx;
+ NET_USER_INFO_3 *info3 = NULL;
- DEBUG(3, ("[%5d]: getgroups %s\n", state->pid,
+ /* 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));
- if (state == NULL) return WINBINDD_ERROR;
+ if (!(mem_ctx = talloc_init("winbindd_getgroups(%s)",
+ state->request.data.username)))
+ return WINBINDD_ERROR;
/* Parse domain and username */
- parse_domain_user(state->request.data.username, name_domain,
- name_user);
-
- /* Reject names that don't have a domain - i.e name_domain contains
- the entire name. */
-
- if (strequal(name_domain, "")) {
- return WINBINDD_ERROR;
- }
-
+ parse_domain_user(state->request.data.username,
+ name_domain, name_user);
+
/* Get info for the domain */
if ((domain = find_domain_from_name(name_domain)) == NULL) {
- DEBUG(0, ("could not find domain entry for domain %s\n",
+ DEBUG(7, ("could not find domain entry for domain %s\n",
name_domain));
- return WINBINDD_ERROR;
+ goto done;
}
- if (!domain_handles_open(domain)) {
+ if ( domain->primary && lp_winbind_trusted_domains_only()) {
+ DEBUG(7,("winbindd_getpwnam: My domain -- rejecting getgroups() for %s\\%s.\n",
+ name_domain, name_user));
return WINBINDD_ERROR;
- }
-
- slprintf(name, sizeof(name) - 1, "%s\\%s", name_domain, name_user);
+ }
/* Get rid and name type from name. The following costs 1 packet */
- if (!winbindd_lookup_sid_by_name(name, &user_sid, &name_type)) {
+ if (!winbindd_lookup_sid_by_name(domain, domain->name, name_user, &user_sid,
+ &name_type)) {
DEBUG(1, ("user '%s' does not exist\n", name_user));
- return WINBINDD_ERROR;
+ goto done;
}
- if (name_type != SID_NAME_USER) {
- DEBUG(1, ("name '%s' is not a user name: %d\n", name_user,
- name_type));
- return WINBINDD_ERROR;
+ if (name_type != SID_NAME_USER && name_type != SID_NAME_COMPUTER) {
+ DEBUG(1, ("name '%s' is not a user name: %d\n",
+ name_user, name_type));
+ goto done;
}
- sid_split_rid(&user_sid, &user_rid);
+ add_gids_from_user_sid(&user_sid, &gid_list, &num_gids);
- if (!winbindd_lookup_usergroups(domain, user_rid, &num_groups,
- &user_groups)) {
- return WINBINDD_ERROR;
- }
+ /* Treat the info3 cache as authoritative as the
+ lookup_usergroups() function may return cached data. */
- /* Copy data back to client */
+ if ( !opt_nocache && (info3 = netsamlogon_cache_get(mem_ctx, &user_sid))) {
- num_gids = 0;
- gid_list = malloc(sizeof(gid_t) * num_groups);
+ DEBUG(10, ("winbindd_getgroups: info3 has %d groups, %d other sids\n",
+ info3->num_groups2, info3->num_other_sids));
- if (state->response.extra_data) {
- result = WINBINDD_ERROR;
- goto done;
- }
+ num_groups = info3->num_other_sids + info3->num_groups2;
- for (i = 0; i < num_groups; i++) {
- if (!winbindd_idmap_get_gid_from_rid(
- domain->name, user_groups[i].g_rid,
- &gid_list[num_gids])) {
+ /* Go through each other sid and convert it to a gid */
- DEBUG(1, ("unable to convert group rid %d to gid\n",
- user_groups[i].g_rid));
- continue;
+ for (i = 0; i < info3->num_other_sids; i++) {
+ fstring name;
+ fstring dom_name;
+ enum SID_NAME_USE sid_type;
+
+ /* Is this sid known to us? It can either be
+ a trusted domain sid or a foreign sid. */
+
+ if (!winbindd_lookup_name_by_sid( &info3->other_sids[i].sid,
+ dom_name, name, &sid_type))
+ {
+ DEBUG(10, ("winbindd_getgroups: could not lookup name for %s\n",
+ sid_string_static(&info3->other_sids[i].sid)));
+ continue;
+ }
+
+ /* Check it is a domain group or an alias (domain local group)
+ in a win2k native mode domain. */
+
+ if ( !((sid_type==SID_NAME_DOM_GRP) ||
+ ((sid_type==SID_NAME_ALIAS) && domain->primary)) )
+ {
+ DEBUG(10, ("winbindd_getgroups: sid type %d "
+ "for %s is not a domain group\n",
+ sid_type,
+ sid_string_static(
+ &info3->other_sids[i].sid)));
+ continue;
+ }
+
+ add_gids_from_group_sid(&info3->other_sids[i].sid,
+ &gid_list, &num_gids);
}
+
+ for (i = 0; i < info3->num_groups2; i++) {
+
+ /* create the group SID */
- num_gids++;
+ sid_copy( &group_sid, &domain->sid );
+ sid_append_rid( &group_sid, info3->gids[i].g_rid );
+
+ add_gids_from_group_sid(&group_sid, &gid_list,
+ &num_gids);
+ }
+
+ SAFE_FREE(info3);
+
+ } else {
+ status = domain->methods->lookup_usergroups(domain, mem_ctx,
+ &user_sid, &num_groups,
+ &user_grpsids);
+ if (!NT_STATUS_IS_OK(status))
+ goto done;
+
+ if (state->response.extra_data)
+ goto done;
+
+ for (i = 0; i < num_groups; i++) {
+ add_gids_from_group_sid(user_grpsids[i],
+ &gid_list, &num_gids);
+ }
}
+ /* We want at least one group... */
+ if (gid_list == NULL)
+ goto done;
+
+ remove_duplicate_gids( &num_gids, gid_list );
+
+ /* Send data back to client */
+
state->response.data.num_entries = num_gids;
state->response.extra_data = gid_list;
state->response.length += num_gids * sizeof(gid_t);
result = WINBINDD_OK;
done:
- safe_free(user_groups);
+
+ talloc_destroy(mem_ctx);
return result;
}
+
+static void add_sid_to_parray_unique(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
+ DOM_SID ***sids, int *num_sids)
+{
+ int i;
+
+ for (i=0; i<(*num_sids); i++) {
+ if (sid_compare(sid, (*sids)[i]) == 0)
+ return;
+ }
+
+ *sids = TALLOC_REALLOC_ARRAY(mem_ctx, *sids, DOM_SID *, *num_sids+1);
+
+ if (*sids == NULL)
+ return;
+
+ (*sids)[*num_sids] = TALLOC_P(mem_ctx, DOM_SID);
+ sid_copy((*sids)[*num_sids], sid);
+ *num_sids += 1;
+ return;
+}
+
+static void add_local_sids_from_sid(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
+ DOM_SID ***user_grpsids,
+ int *num_groups)
+{
+ DOM_SID *aliases = NULL;
+ int i, num_aliases = 0;
+
+ if (!pdb_enum_alias_memberships(sid, 1, &aliases, &num_aliases))
+ return;
+
+ if (num_aliases == 0)
+ return;
+
+ for (i=0; i<num_aliases; i++)
+ add_sid_to_parray_unique(mem_ctx, &aliases[i], user_grpsids,
+ num_groups);
+
+ SAFE_FREE(aliases);
+
+ return;
+}
+
+/* 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.
+*/
+enum winbindd_result winbindd_getusersids(struct winbindd_cli_state *state)
+{
+ DOM_SID user_sid;
+ NTSTATUS status;
+ DOM_SID **user_grpsids;
+ struct winbindd_domain *domain;
+ enum winbindd_result result = WINBINDD_ERROR;
+ unsigned int i;
+ TALLOC_CTX *mem_ctx;
+ char *ret = NULL;
+ uint32 num_groups;
+ unsigned ofs, ret_size = 0;
+
+ /* 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;
+ }
+
+ if (!(mem_ctx = talloc_init("winbindd_getusersids(%s)",
+ state->request.data.username))) {
+ return WINBINDD_ERROR;
+ }
+
+ /* Get info for the domain */
+ if ((domain = find_domain_from_sid(&user_sid)) == NULL) {
+ DEBUG(0,("could not find domain entry for sid %s\n",
+ sid_string_static(&user_sid)));
+ goto done;
+ }
+
+ status = domain->methods->lookup_usergroups(domain, mem_ctx,
+ &user_sid, &num_groups,
+ &user_grpsids);
+ if (!NT_STATUS_IS_OK(status))
+ goto done;
+
+ if (num_groups == 0) {
+ goto no_groups;
+ }
+
+ if (lp_winbind_nested_groups()) {
+ int k;
+ /* num_groups is changed during the loop, that's why we have
+ to count down here.*/
+
+ for (k=num_groups-1; k>=0; k--) {
+ add_local_sids_from_sid(mem_ctx, user_grpsids[k],
+ &user_grpsids, &num_groups);
+ }
+
+ add_local_sids_from_sid(mem_ctx, &user_sid, &user_grpsids,
+ &num_groups);
+ }
+
+ /* work out the response size */
+ for (i = 0; i < num_groups; i++) {
+ const char *s = sid_string_static(user_grpsids[i]);
+ ret_size += strlen(s) + 1;
+ }
+
+ /* build the reply */
+ ret = SMB_MALLOC(ret_size);
+ if (!ret) goto done;
+ ofs = 0;
+ for (i = 0; i < num_groups; i++) {
+ const char *s = sid_string_static(user_grpsids[i]);
+ safe_strcpy(ret + ofs, s, ret_size - ofs - 1);
+ ofs += strlen(ret+ofs) + 1;
+ }
+
+no_groups:
+ /* Send data back to client */
+ state->response.data.num_entries = num_groups;
+ state->response.extra_data = ret;
+ state->response.length += ret_size;
+ result = WINBINDD_OK;
+
+ done:
+ talloc_destroy(mem_ctx);
+
+ return result;
+}
+
git.samba.org / tprouty / samba.git / blobdiff