#include "winbindd.h"
static struct winbindd_gr negative_gr_cache_entry;
static BOOL fill_grent(struct winbindd_gr *gr, char *gr_name,
gid_t unix_gid)
{
gr->gr_gid = unix_gid;
safe_strcpy(gr->gr_name, gr_name, sizeof(gr->gr_name) - 1);
safe_strcpy(gr->gr_passwd, "x", sizeof(gr->gr_passwd) - 1);
return True;
}
static BOOL fill_grent_mem(struct winbindd_domain *domain,
uint32 group_rid,
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;
uint32 *name_types = NULL;
int buf_len, buf_ndx, i;
char **names = NULL, *buf;
BOOL result = False;
TALLOC_CTX *mem_ctx;
if (!(mem_ctx = talloc_init()))
return False;
DEBUG(10, ("fill_grent_mem(): group %s rid 0x%x\n",
domain ? domain->name : "NULL", group_rid));
*num_gr_mem = 0;
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));
goto done;
}
if (!winbindd_lookup_groupmem(domain, mem_ctx, 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));
goto done;
}
DEBUG(10, ("fill_grent_mem(): 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],
name_types[i]));
}
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, ("fill_grent_mem(): processing name %s\n",
the_name));
if (name_types[i] != SID_NAME_USER) {
DEBUG(3, ("fill_grent_mem(): name %s isn't a domain "
"user\n", the_name));
continue;
}
if (the_name[strlen(the_name) - 1] == '$') {
DEBUG(10, ("fill_grent_mem(): %s is machine account\n",
the_name));
continue;
}
snprintf(name, sizeof(name), "%s%s%s", domain->name,
lp_winbind_separator(), the_name);
len = strlen(name);
if (!buf) {
buf_len += len + 1;
(*num_gr_mem)++;
DEBUG(10, ("fill_grent_mem(): buf_len + %d = %d\n", len + 1,
buf_len));
} else {
DEBUG(10, ("fill_grent_mem(): appending %s at index %d\n",
name, len));
safe_strcpy(&buf[buf_ndx], name, len);
buf_ndx += len;
buf[buf_ndx] = ',';
buf_ndx++;
}
}
if (!buf) {
if (!(buf = malloc(buf_len))) {
DEBUG(1, ("fill_grent_mem(): 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, ("fill_grent_mem(): 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;
}
enum winbindd_result winbindd_getgrnam_from_group(struct winbindd_cli_state *state)
{
DOM_SID group_sid;
struct winbindd_domain *domain;
enum SID_NAME_USE name_type;
uint32 group_rid;
fstring name_domain, name_group, name;
char *tmp, *gr_mem;
gid_t gid;
int extra_data_len, gr_mem_len;
DEBUG(3, ("[%5d]: getgrnam %s\n", state->pid,
state->request.data.groupname));
memset(name_group, 0, sizeof(fstring));
tmp = state->request.data.groupname;
if (!parse_domain_user(tmp, name_domain, name_group))
return WINBINDD_ERROR;
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));
return WINBINDD_ERROR;
}
if (winbindd_fetch_group_cache_entry(domain, name_group,
&state->response.data.gr,
&state->response.extra_data,
&extra_data_len)) {
if (memcmp(&negative_gr_cache_entry, &state->response.data.gr,
sizeof(state->response.data.gr)) == 0)
return WINBINDD_ERROR;
state->response.length += extra_data_len;
return WINBINDD_OK;
}
snprintf(name, sizeof(name), "%s\\%s", name_domain, name_group);
if (!winbindd_lookup_sid_by_name(name, &group_sid, &name_type)) {
DEBUG(1, ("group %s in domain %s does not exist\n",
name_group, name_domain));
winbindd_store_group_cache_entry(domain, name_group,
&negative_gr_cache_entry, NULL, 0);
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));
winbindd_store_group_cache_entry(domain, name_group,
&negative_gr_cache_entry, NULL, 0);
return WINBINDD_ERROR;
}
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"));
winbindd_store_group_cache_entry(domain, name_group,
&negative_gr_cache_entry, NULL, 0);
return WINBINDD_ERROR;
}
if (!fill_grent(&state->response.data.gr,
state->request.data.groupname, gid) ||
!fill_grent_mem(domain, group_rid, name_type,
&state->response.data.gr.num_gr_mem,
&gr_mem, &gr_mem_len)) {
winbindd_store_group_cache_entry(domain, name_group,
&negative_gr_cache_entry, NULL, 0);
return WINBINDD_ERROR;
}
state->response.data.gr.gr_mem_ofs = 0;
state->response.length += gr_mem_len;
state->response.extra_data = gr_mem;
winbindd_store_group_cache_entry(domain, name_group,
&state->response.data.gr,
state->response.extra_data,
gr_mem_len);
return WINBINDD_OK;
}
enum winbindd_result winbindd_getgrnam_from_gid(struct winbindd_cli_state
*state)
{
struct winbindd_domain *domain;
DOM_SID group_sid;
enum SID_NAME_USE name_type;
fstring group_name;
uint32 group_rid;
int extra_data_len, gr_mem_len;
char *gr_mem;
DEBUG(3, ("[%5d]: getgrgid %d\n", state->pid,
state->request.data.gid));
if ((state->request.data.gid < server_state.gid_low) ||
(state->request.data.gid > server_state.gid_high))
return WINBINDD_ERROR;
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;
}
if (winbindd_fetch_gid_cache_entry(domain,
state->request.data.gid,
&state->response.data.gr,
&state->response.extra_data,
&extra_data_len)) {
if (memcmp(&negative_gr_cache_entry, &state->response.data.gr,
sizeof(state->response.data.gr)) == 0)
return WINBINDD_ERROR;
state->response.length += extra_data_len;
return WINBINDD_OK;
}
sid_copy(&group_sid, &domain->sid);
sid_append_rid(&group_sid, group_rid);
if (!winbindd_lookup_name_by_sid(&group_sid, group_name, &name_type)) {
DEBUG(1, ("Could not lookup 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));
return WINBINDD_ERROR;
}
if (!fill_grent(&state->response.data.gr, group_name,
state->request.data.gid) ||
!fill_grent_mem(domain, group_rid, name_type,
&state->response.data.gr.num_gr_mem,
&gr_mem, &gr_mem_len))
return WINBINDD_ERROR;
state->response.data.gr.gr_mem_ofs = 0;
state->response.length += gr_mem_len;
state->response.extra_data = gr_mem;
winbindd_store_gid_cache_entry(domain, 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;
DEBUG(3, ("[%5d]: setgrent\n", state->pid));
if (!lp_winbind_enum_groups())
return WINBINDD_ERROR;
if (state->getgrent_state != NULL) {
free_getent_state(state->getgrent_state);
state->getgrent_state = NULL;
}
if (domain_list == NULL)
get_domain_info();
for (tmp = domain_list; tmp != NULL; tmp = tmp->next) {
struct getent_state *domain_state;
if ((strcmp(state->request.domain, "") != 0) &&
!check_domain_env(state->request.domain, tmp->name)) {
DEBUG(5, ("skipping domain %s because of env var\n",
tmp->name));
continue;
}
if ((domain_state = create_getent_state(tmp)) == NULL) {
DEBUG(5, ("error connecting to dc for domain %s\n",
tmp->name));
continue;
}
DLIST_ADD(state->getgrent_state, domain_state);
}
return WINBINDD_OK;
}
enum winbindd_result winbindd_endgrent(struct winbindd_cli_state *state)
{
DEBUG(3, ("[%5d]: endgrent\n", state->pid));
free_getent_state(state->getgrent_state);
state->getgrent_state = NULL;
return WINBINDD_OK;
}
#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, *tnl;
TALLOC_CTX *mem_ctx;
BOOL result = False;
if (ent->got_all_sam_entries)
return False;
#if 0
if (winbindd_fetch_group_cache(ent->domain,
&ent->sam_entries,
&ent->num_sam_entries))
return True;
#endif
if (!(mem_ctx = talloc_init()))
return False;
SAFE_FREE(ent->sam_entries);
ent->num_sam_entries = 0;
do {
struct acct_info *sam_grp_entries = NULL;
CLI_POLICY_HND *hnd;
num_entries = 0;
if (!(hnd = cm_get_sam_handle(ent->domain->name)))
break;
status = cli_samr_enum_dom_groups(
hnd->cli, mem_ctx, &ent->dom_pol,
&ent->grp_query_start_ndx,
0x8000,
(struct acct_info **) &sam_grp_entries, &num_entries);
if (num_entries) {
tnl = Realloc(name_list,
sizeof(struct acct_info) *
(ent->num_sam_entries +
num_entries));
if (tnl == NULL) {
DEBUG(0,("get_sam_group_entries: unable to "
"realloc a structure!\n"));
SAFE_FREE(name_list);
goto done;
} else
name_list = tnl;
memcpy(&name_list[ent->num_sam_entries],
sam_grp_entries,
num_entries * sizeof(struct acct_info));
}
ent->num_sam_entries += num_entries;
if (NT_STATUS_V(status) != NT_STATUS_V(STATUS_MORE_ENTRIES))
break;
} while (ent->num_sam_entries < MAX_FETCH_SAM_ENTRIES);
#if 0
winbindd_store_group_cache(ent->domain, ent->sam_entries,
ent->num_sam_entries);
#endif
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));
result = (ent->num_sam_entries > 0);
done:
talloc_destroy(mem_ctx);
return result;
}
#define MAX_GETGRENT_GROUPS 500
enum winbindd_result 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, ("[%5d]: getgrent\n", state->pid));
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)
return WINBINDD_ERROR;
state->response.data.num_entries = 0;
group_list = (struct winbindd_gr *)state->response.extra_data;
if (!(ent = state->getgrent_state))
return WINBINDD_ERROR;
for (i = 0; i < num_groups; i++) {
struct acct_info *name_list = NULL;
fstring domain_group_name;
uint32 result;
gid_t group_gid;
int gr_mem_len;
char *gr_mem, *new_gr_mem_list;
tryagain:
DEBUG(10, ("getgrent(): 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));
SAFE_FREE(ent->sam_entries);
next_ent = ent->next;
DLIST_REMOVE(state->getgrent_state, ent);
SAFE_FREE(ent);
ent = next_ent;
}
if (!ent)
break;
}
name_list = ent->sam_entries;
if (!winbindd_idmap_get_gid_from_rid(
ent->domain->name,
name_list[ent->sam_entry_index].rid,
&group_gid)) {
DEBUG(1, ("getgrent(): 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));
slprintf(domain_group_name, sizeof(domain_group_name) - 1,
"%s%s%s", ent->domain->name, lp_winbind_separator(),
name_list[ent->sam_entry_index].acct_name);
result = fill_grent(&group_list[group_list_ndx],
domain_group_name, group_gid);
if (result) {
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);
}
if (result) {
new_gr_mem_list = 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"));
SAFE_FREE(gr_mem_list);
gr_mem_list_len = 0;
break;
}
DEBUG(10, ("getgrent(): 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++;
if (result) {
DEBUG(10, ("getgrent(): 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));
}
}
if (group_list_ndx == 0)
goto done;
new_extra_data = 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);
return WINBINDD_ERROR;
}
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, ("getgrent(): returning %d groups, length = %d\n",
group_list_ndx, gr_mem_list_len));
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;
char *extra_data = NULL;
char *ted = NULL;
int extra_data_len = 0, i;
void *sam_entries = NULL;
DEBUG(3, ("[%5d]: list groups\n", state->pid));
ZERO_STRUCT(groups);
if (domain_list == NULL)
get_domain_info();
for (domain = domain_list; domain; domain = domain->next) {
if ((strcmp(state->request.domain, "") != 0) &&
!check_domain_env(state->request.domain, domain->name))
continue;
if ((groups = create_getent_state(domain)) == NULL)
continue;
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);
if (!sam_entries) {
free_getent_state(groups);
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);
SAFE_FREE(groups->sam_entries);
groups->num_sam_entries = 0;
}
if (num_domain_entries == 0)
continue;
groups->num_sam_entries = num_domain_entries;
groups->sam_entries = sam_entries;
sam_entries = NULL;
total_entries += groups->num_sam_entries;
ted = Realloc(extra_data, sizeof(fstring) * total_entries);
if (!ted) {
DEBUG(0,("winbindd_list_groups: failed to enlarge "
"buffer!\n"));
SAFE_FREE(extra_data);
free_getent_state(groups);
return WINBINDD_ERROR;
} else
extra_data = ted;
for (i = 0; i < groups->num_sam_entries; i++) {
char *group_name = ((struct acct_info *)
groups->sam_entries)[i].acct_name;
fstring name;
snprintf(name, sizeof(name), "%s%s%s", domain->name,
lp_winbind_separator(), group_name);
memcpy(&extra_data[extra_data_len], name,
strlen(name));
extra_data_len += strlen(name);
extra_data[extra_data_len++] = ',';
}
free_getent_state(groups);
}
if (extra_data) {
extra_data[extra_data_len - 1] = '\0';
state->response.extra_data = extra_data;
state->response.length += extra_data_len;
}
return WINBINDD_OK;
}
enum winbindd_result winbindd_getgroups(struct winbindd_cli_state *state)
{
fstring name_domain, name_user, name;
DOM_SID user_sid;
enum SID_NAME_USE name_type;
uint32 user_rid, num_groups, num_gids;
DOM_GID *user_groups = NULL;
struct winbindd_domain *domain;
enum winbindd_result result = WINBINDD_ERROR;
gid_t *gid_list;
int i;
TALLOC_CTX *mem_ctx;
DEBUG(3, ("[%5d]: getgroups %s\n", state->pid,
state->request.data.username));
if (!(mem_ctx = talloc_init()))
return WINBINDD_ERROR;
if (!parse_domain_user(state->request.data.username, name_domain,
name_user))
goto done;
if ((domain = find_domain_from_name(name_domain)) == NULL) {
DEBUG(0, ("could not find domain entry for domain %s\n",
name_domain));
goto done;
}
slprintf(name, sizeof(name) - 1, "%s\\%s", name_domain, name_user);
if (!winbindd_lookup_sid_by_name(name, &user_sid, &name_type)) {
DEBUG(1, ("user '%s' does not exist\n", name_user));
goto done;
}
if (name_type != SID_NAME_USER) {
DEBUG(1, ("name '%s' is not a user name: %d\n", name_user,
name_type));
goto done;
}
sid_split_rid(&user_sid, &user_rid);
if (!winbindd_lookup_usergroups(domain, mem_ctx, user_rid,
&num_groups, &user_groups))
goto done;
num_gids = 0;
gid_list = malloc(sizeof(gid_t) * num_groups);
if (gid_list == NULL)
goto done;
if (state->response.extra_data)
goto done;
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])) {
DEBUG(1, ("unable to convert group rid %d to gid\n",
user_groups[i].g_rid));
continue;
}
num_gids++;
}
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:
talloc_destroy(mem_ctx);
return result;
}