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.
****************************************************************/
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;
TALLOC_CTX *mem_ctx;
NTSTATUS status;
+ fstring sid_string;
- if (!(mem_ctx = talloc_init_named("fill_grent_mem(%s)", domain->name)))
+ if (!(mem_ctx = talloc_init("fill_grent_mem(%s)", domain->name)))
return False;
/* Initialise group membership information */
- DEBUG(10, ("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, ("rid %d in domain %s isn't a domain group\n",
- group_rid, domain->name));
+ 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_rid, &num_names,
- &rid_mem, &names, &name_types);
+ 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 %d in domain %s (error: %s)\n",
- group_rid, domain->name, nt_errstr(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;
}
if (DEBUGLEVEL >= 10) {
for (i = 0; i < num_names; i++)
- DEBUG(10, ("\t%20s %x %d\n", names[i], rid_mem[i],
+ DEBUG(10, ("\t%20s %s %d\n", names[i], sid_to_string(sid_string, sid_mem[i]),
name_types[i]));
}
occur in Universal groups on a Windows 2000 native mode
server. */
- if (name_types[i] != SID_NAME_USER) {
- DEBUG(3, ("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, ("%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;
}
/* Allocate buffer */
if (!buf && buf_len != 0) {
- if (!(buf = malloc(buf_len))) {
+ if (!(buf = SMB_MALLOC(buf_len))) {
DEBUG(1, ("out of memory\n"));
result = False;
goto done;
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;
char *tmp, *gr_mem;
- gid_t gid;
int gr_mem_len;
+ gid_t gid;
/* Ensure null termination */
state->request.data.groupname[sizeof(state->request.data.groupname)-1]='\0';
- DEBUG(3, ("[%5d]: getgrnam %s\n", state->pid,
+ 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;
- if (!parse_domain_user(tmp, name_domain, name_group))
- return WINBINDD_ERROR;
+
+ parse_domain_user(tmp, name_domain, name_group);
+
+ /* 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) ) {
+
+ 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, ("could not get domain sid for domain %s\n",
+ DEBUG(3, ("could not get domain sid for domain %s\n",
name_domain));
return WINBINDD_ERROR;
}
+ /* 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;
+ }
/* Get rid and name type from name */
- if (!winbindd_lookup_sid_by_name(domain, name_group, &group_sid,
+ 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)) {
+ 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 */
- if (!sid_peek_check_rid(&domain->sid, &group_sid, &group_rid))
- return WINBINDD_ERROR;
-
- if (!winbindd_idmap_get_gid_from_sid(&group_sid, &gid)) {
+ 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, name_domain,
name_group, 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)) {
return WINBINDD_ERROR;
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 gr_mem_len;
char *gr_mem;
- DEBUG(3, ("[%5d]: getgrgid %d\n", state->pid,
- state->request.data.gid));
+ 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 */
(state->request.data.gid > server_state.gid_high))
return WINBINDD_ERROR;
- /* Get rid from gid */
+ /* 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 (!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));
+ /* 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;
}
- /* Get sid from gid */
-
- sid_copy(&group_sid, &domain->sid);
- sid_append_rid(&group_sid, group_rid);
+ /* Get name from sid */
if (!winbindd_lookup_name_by_sid(&group_sid, dom_name, group_name, &name_type)) {
DEBUG(1, ("could not lookup sid\n"));
return WINBINDD_ERROR;
}
- if (!((name_type == SID_NAME_ALIAS) ||
- (name_type == SID_NAME_DOM_GRP))) {
+ /* Fill in group structure */
+
+ domain = find_domain_from_sid(&group_sid);
+
+ if (!domain) {
+ DEBUG(1,("Can't find domain from sid\n"));
+ return WINBINDD_ERROR;
+ }
+
+ 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, 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))
return WINBINDD_ERROR;
{
struct winbindd_domain *domain;
- DEBUG(3, ("[%5d]: setgrent\n", state->pid));
+ DEBUG(3, ("[%5lu]: setgrent\n", (unsigned long)state->pid));
/* Check user has enabled this */
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, domain->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;
}
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));
+ 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;
if (ent->got_sam_entries)
return False;
- if (!(mem_ctx = talloc_init_named("get_sam_group_entries(%s)",
+ 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;
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", nt_errstr(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 = malloc(sizeof(struct acct_info) * 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;
ent->num_sam_entries = num_entries;
- /* get the domain local groups if we are a member of
- a native win2k domain */
+ /* 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 ( domain->native_mode && domain->methods->enum_local_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"));
/* Copy entries into return buffer */
if ( num_entries ) {
- if ( !(tmp_name_list = Realloc( name_list, sizeof(struct acct_info) * (ent->num_sam_entries+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));
int num_groups, group_list_ndx = 0, i, gr_mem_list_len = 0;
char *new_extra_data, *gr_mem_list = NULL;
- DEBUG(3, ("[%5d]: getgrent\n", state->pid));
+ DEBUG(3, ("[%5lu]: getgrent\n", (unsigned long)state->pid));
/* Check user has enabled this */
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;
+ if (!state->getgrent_initialized)
+ winbindd_setgrent(state);
+
if (!(ent = state->getgrent_state))
return WINBINDD_ERROR;
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:
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, ("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 %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 */
/* Fill in group membership entry */
if (result) {
- struct winbindd_domain *domain;
-
- 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;
- }
-
+ DOM_SID member_sid;
group_list[group_list_ndx].num_gr_mem = 0;
gr_mem = NULL;
gr_mem_len = 0;
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,
- name_list[ent->sam_entry_index].rid,
+ &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, ("out of memory\n"));
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);
{
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;
+ 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));
+ /* 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;
- ZERO_STRUCT(groups);
-
- /* Skip domains other than WINBINDD_DOMAIN environment
- variable */
- 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 */
- ZERO_STRUCT(groups);
+
fstrcpy(groups.domain_name, domain->name);
get_sam_group_entries(&groups);
/* 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);
+ ted = SMB_REALLOC(extra_data, sizeof(fstring) * total_entries);
if (!ted) {
DEBUG(0,("failed to enlarge buffer!\n"));
extra_data[extra_data_len++] = ',';
}
- free(groups.sam_entries);
+ SAFE_FREE(groups.sam_entries);
}
/* Assign extra_data fields in response structure */
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;
- DOM_SID user_sid;
+ DOM_SID user_sid, group_sid;
enum SID_NAME_USE name_type;
- uint32 user_rid, num_groups, num_gids;
+ uint32 num_groups = 0;
+ uint32 num_gids = 0;
NTSTATUS status;
- uint32 *user_gids;
+ DOM_SID **user_grpsids;
struct winbindd_domain *domain;
enum winbindd_result result = WINBINDD_ERROR;
- gid_t *gid_list;
- int i;
+ gid_t *gid_list = NULL;
+ unsigned int i;
TALLOC_CTX *mem_ctx;
+ NET_USER_INFO_3 *info3 = NULL;
/* Ensure null termination */
state->request.data.username[sizeof(state->request.data.username)-1]='\0';
- DEBUG(3, ("[%5d]: getgroups %s\n", state->pid,
+ DEBUG(3, ("[%5lu]: getgroups %s\n", (unsigned long)state->pid,
state->request.data.username));
- if (!(mem_ctx = talloc_init_named("winbindd_getgroups(%s)",
+ if (!(mem_ctx = talloc_init("winbindd_getgroups(%s)",
state->request.data.username)))
return WINBINDD_ERROR;
/* Parse domain and username */
- if (!parse_domain_user(state->request.data.username, name_domain,
- name_user))
- goto done;
-
+ 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));
goto done;
}
+ 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;
+ }
+
/* Get rid and name type from name. The following costs 1 packet */
- if (!winbindd_lookup_sid_by_name(domain, name_user, &user_sid,
+ 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));
goto done;
}
- if (name_type != SID_NAME_USER) {
+ 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);
- status = domain->methods->lookup_usergroups(domain, mem_ctx, user_rid, &num_groups, &user_gids);
- if (!NT_STATUS_IS_OK(status)) goto done;
+ /* 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)
- 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_gids[i],
- &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_gids[i]));
- 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);
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