#include "includes.h"
-
-extern int DEBUGLEVEL;
DOM_SID global_sam_sid;
extern pstring global_myname;
extern fstring global_myworkgroup;
* Some useful sids
*/
-DOM_SID global_sid_S_1_5_0x20; /* local well-known domain */
-DOM_SID global_sid_World_Domain; /* everyone */
-DOM_SID global_sid_World; /* everyone */
-DOM_SID global_sid_Creator_Owner_Domain; /* Creator Owner */
-DOM_SID global_sid_Creator_Owner; /* Creator Owner */
-DOM_SID global_sid_NT_Authority; /* NT Authority */
+DOM_SID global_sid_Builtin; /* Local well-known domain */
+DOM_SID global_sid_World_Domain; /* Everyone domain */
+DOM_SID global_sid_World; /* Everyone */
+DOM_SID global_sid_Creator_Owner_Domain; /* Creator Owner domain */
+DOM_SID global_sid_Creator_Owner; /* Creator Owner */
+DOM_SID global_sid_NT_Authority; /* NT Authority */
+DOM_SID global_sid_NULL; /* NULL sid */
+DOM_SID global_sid_Builtin_Guests; /* Builtin guest users */
+DOM_SID global_sid_Authenticated_Users; /* All authenticated rids */
+DOM_SID global_sid_Network; /* Network rids */
+DOM_SID global_sid_Anonymous; /* Anonymous login */
+
+const DOM_SID *global_sid_everyone = &global_sid_World;
typedef struct _known_sid_users {
uint32 rid;
- uint8 sid_name_use;
+ enum SID_NAME_USE sid_name_use;
char *known_user_name;
} known_sid_users;
/* static known_sid_users no_users[] = {{0, 0, NULL}}; */
-static known_sid_users everyone_users[] = {{ 0, SID_NAME_WKN_GRP, "Everyone" }, {0, 0, NULL}};
-static known_sid_users creator_owner_users[] = {{ 0, SID_NAME_ALIAS, "Creator Owner" }, {0, 0, NULL}};
-static known_sid_users nt_authority_users[] = {{ 1, SID_NAME_ALIAS, "Dialup" },
- { 2, SID_NAME_ALIAS, "Network"},
- { 3, SID_NAME_ALIAS, "Batch"},
- { 4, SID_NAME_ALIAS, "Interactive"},
- { 6, SID_NAME_ALIAS, "Service"},
- { 7, SID_NAME_ALIAS, "AnonymousLogon"},
- { 8, SID_NAME_ALIAS, "Proxy"},
- { 9, SID_NAME_ALIAS, "ServerLogon"},
- {0, 0, NULL}};
+
+static known_sid_users everyone_users[] = {
+ { 0, SID_NAME_WKN_GRP, "Everyone" },
+ {0, (enum SID_NAME_USE)0, NULL}};
+
+static known_sid_users creator_owner_users[] = {
+ { 0, SID_NAME_ALIAS, "Creator Owner" },
+ {0, (enum SID_NAME_USE)0, NULL}};
+
+static known_sid_users nt_authority_users[] = {
+ { 1, SID_NAME_ALIAS, "Dialup" },
+ { 2, SID_NAME_ALIAS, "Network"},
+ { 3, SID_NAME_ALIAS, "Batch"},
+ { 4, SID_NAME_ALIAS, "Interactive"},
+ { 6, SID_NAME_ALIAS, "Service"},
+ { 7, SID_NAME_ALIAS, "AnonymousLogon"},
+ { 8, SID_NAME_ALIAS, "Proxy"},
+ { 9, SID_NAME_ALIAS, "ServerLogon"},
+ { 11, SID_NAME_ALIAS, "Authenticated Users"},
+ { 18, SID_NAME_ALIAS, "SYSTEM"},
+ { 0, (enum SID_NAME_USE)0, NULL}};
+
+static known_sid_users builtin_groups[] = {
+ { BUILTIN_ALIAS_RID_ADMINS, SID_NAME_ALIAS, "Administrators" },
+ { BUILTIN_ALIAS_RID_USERS, SID_NAME_ALIAS, "Users" },
+ { BUILTIN_ALIAS_RID_GUESTS, SID_NAME_ALIAS, "Guests" },
+ { BUILTIN_ALIAS_RID_ACCOUNT_OPS, SID_NAME_ALIAS, "Account Operators" },
+ { BUILTIN_ALIAS_RID_SYSTEM_OPS, SID_NAME_ALIAS, "Server Operators" },
+ { BUILTIN_ALIAS_RID_PRINT_OPS, SID_NAME_ALIAS, "Print Operators" },
+ { BUILTIN_ALIAS_RID_BACKUP_OPS, SID_NAME_ALIAS, "Backup Operators" },
+ { 0, (enum SID_NAME_USE)0, NULL}};
+
+#define MAX_SID_NAMES 7
static struct sid_name_map_info
{
DOM_SID *sid;
char *name;
known_sid_users *known_users;
-}
-sid_name_map[] =
-{
- { &global_sam_sid, global_myname, NULL},
- { &global_sam_sid, global_myworkgroup, NULL},
- { &global_sid_S_1_5_0x20, "BUILTIN", NULL},
- { &global_sid_World_Domain, "", &everyone_users[0] },
- { &global_sid_Creator_Owner_Domain, "", &creator_owner_users[0] },
- { &global_sid_NT_Authority, "NT Authority", &nt_authority_users[0] },
- { NULL, NULL, NULL}
+} sid_name_map[MAX_SID_NAMES];
+
+static BOOL sid_name_map_initialized = False;
+
+/*
+ * An NT compatible anonymous token.
+ */
+
+static DOM_SID anon_sid_array[3];
+
+NT_USER_TOKEN anonymous_token = {
+ 3,
+ anon_sid_array
};
+/**************************************************************************
+ quick init function
+ *************************************************************************/
+static void init_sid_name_map (void)
+{
+ int i = 0;
+
+ if (sid_name_map_initialized) return;
+
+
+ if ((lp_security() == SEC_USER) && lp_domain_logons()) {
+ sid_name_map[i].sid = &global_sam_sid;
+ sid_name_map[i].name = global_myworkgroup;
+ sid_name_map[i].known_users = NULL;
+ i++;
+ sid_name_map[i].sid = &global_sam_sid;
+ sid_name_map[i].name = global_myname;
+ sid_name_map[i].known_users = NULL;
+ i++;
+ }
+ else {
+ sid_name_map[i].sid = &global_sam_sid;
+ sid_name_map[i].name = global_myname;
+ sid_name_map[i].known_users = NULL;
+ i++;
+ }
+
+ sid_name_map[i].sid = &global_sid_Builtin;
+ sid_name_map[i].name = "BUILTIN";
+ sid_name_map[i].known_users = &builtin_groups[0];
+ i++;
+
+ sid_name_map[i].sid = &global_sid_World_Domain;
+ sid_name_map[i].name = "";
+ sid_name_map[i].known_users = &everyone_users[0];
+ i++;
+
+ sid_name_map[i].sid = &global_sid_Creator_Owner_Domain;
+ sid_name_map[i].name = "";
+ sid_name_map[i].known_users = &creator_owner_users[0];
+ i++;
+
+ sid_name_map[i].sid = &global_sid_NT_Authority;
+ sid_name_map[i].name = "NT Authority";
+ sid_name_map[i].known_users = &nt_authority_users[0];
+ i++;
+
+
+ /* end of array */
+ sid_name_map[i].sid = NULL;
+ sid_name_map[i].name = NULL;
+ sid_name_map[i].known_users = NULL;
+
+ sid_name_map_initialized = True;
+
+ return;
+
+}
+
/****************************************************************************
Creates some useful well known sids
****************************************************************************/
void generate_wellknown_sids(void)
{
- string_to_sid(&global_sid_S_1_5_0x20, "S-1-5-32");
+ string_to_sid(&global_sid_Builtin, "S-1-5-32");
+ string_to_sid(&global_sid_Builtin_Guests, "S-1-5-32-546");
string_to_sid(&global_sid_World_Domain, "S-1-1");
string_to_sid(&global_sid_World, "S-1-1-0");
string_to_sid(&global_sid_Creator_Owner_Domain, "S-1-3");
string_to_sid(&global_sid_Creator_Owner, "S-1-3-0");
string_to_sid(&global_sid_NT_Authority, "S-1-5");
+ string_to_sid(&global_sid_NULL, "S-1-0-0");
+ string_to_sid(&global_sid_Authenticated_Users, "S-1-5-11");
+ string_to_sid(&global_sid_Network, "S-1-5-2");
+ string_to_sid(&global_sid_Anonymous, "S-1-5-7");
+
+ /* Create the anon token. */
+ sid_copy( &anonymous_token.user_sids[0], &global_sid_World);
+ sid_copy( &anonymous_token.user_sids[1], &global_sid_Network);
+ sid_copy( &anonymous_token.user_sids[2], &global_sid_Anonymous);
}
/**************************************************************************
{
fstring sid_str;
int i = 0;
+
sid_to_string(sid_str, sid);
+ if (!sid_name_map_initialized)
+ init_sid_name_map();
+
DEBUG(5,("map_domain_sid_to_name: %s\n", sid_str));
if (nt_domain == NULL)
while (sid_name_map[i].sid != NULL) {
sid_to_string(sid_str, sid_name_map[i].sid);
DEBUG(5,("map_domain_sid_to_name: compare: %s\n", sid_str));
- if (sid_equal(sid_name_map[i].sid, sid)) {
+ if (sid_equal(sid_name_map[i].sid, sid)) {
fstrcpy(nt_domain, sid_name_map[i].name);
DEBUG(5,("map_domain_sid_to_name: found '%s'\n", nt_domain));
return True;
Looks up a known username from one of the known domains.
***************************************************************************/
-BOOL lookup_known_rid(DOM_SID *sid, uint32 rid, char *name, uint8 *psid_name_use)
+BOOL lookup_known_rid(DOM_SID *sid, uint32 rid, char *name, enum SID_NAME_USE *psid_name_use)
{
int i = 0;
struct sid_name_map_info *psnm;
+ if (!sid_name_map_initialized)
+ init_sid_name_map();
+
for(i = 0; sid_name_map[i].sid != NULL; i++) {
psnm = &sid_name_map[i];
if(sid_equal(psnm->sid, sid)) {
DEBUG(5,("map_domain_name_to_sid: overriding blank name to %s\n", nt_domain));
sid_copy(sid, &global_sam_sid);
return True;
- }
+ }
DEBUG(5,("map_domain_name_to_sid: %s\n", nt_domain));
+ if (!sid_name_map_initialized)
+ init_sid_name_map();
+
while (sid_name_map[i].name != NULL) {
DEBUG(5,("map_domain_name_to_sid: compare: %s\n", sid_name_map[i].name));
if (strequal(sid_name_map[i].name, nt_domain)) {
void split_domain_name(const char *fullname, char *domain, char *name)
{
pstring full_name;
- char *p;
+ char *p, *sep;
+
+ sep = lp_winbind_separator();
*domain = *name = '\0';
- if (fullname[0] == '\\')
+ if (fullname[0] == sep[0] || fullname[0] == '\\')
fullname++;
pstrcpy(full_name, fullname);
- p = strchr(full_name+1, '\\');
+ p = strchr_m(full_name+1, '\\');
+ if (!p) p = strchr_m(full_name+1, sep[0]);
if (p != NULL) {
*p = 0;
fstrcat(sidstr_out, subauth);
}
- DEBUG(7,("sid_to_string returning %s\n", sidstr_out));
return sidstr_out;
}
sid_append_rid(sidout, (uint32)strtoul(tok, NULL, 10));
}
- DEBUG(7,("string_to_sid: converted SID %s ok\n", sidstr));
-
return True;
}
return False;
}
+/*****************************************************************
+ Return the last rid from the end of a sid
+*****************************************************************/
+
+BOOL sid_peek_rid(DOM_SID *sid, uint32 *rid)
+{
+ if (sid->num_auths > 0) {
+ *rid = sid->sub_auths[sid->num_auths - 1];
+ return True;
+ }
+ return False;
+}
+
/*****************************************************************
Copies a sid
*****************************************************************/
{
int i;
+ memset((char *)dst, '\0', sizeof(DOM_SID));
+
dst->sid_rev_num = src->sid_rev_num;
dst->num_auths = src->num_auths;
/*****************************************************************
Write a sid out into on-the-wire format.
*****************************************************************/
-
BOOL sid_linearize(char *outbuf, size_t len, DOM_SID *sid)
{
size_t i;
- if(len < sid_size(sid))
+ if (len < sid_size(sid))
return False;
SCVAL(outbuf,0,sid->sid_rev_num);
}
/*****************************************************************
- Compare two sids.
+ parse a on-the-wire SID to a DOM_SID
*****************************************************************/
+BOOL sid_parse(char *inbuf, size_t len, DOM_SID *sid)
+{
+ int i;
+ if (len < 8) return False;
+ sid->sid_rev_num = CVAL(inbuf, 0);
+ sid->num_auths = CVAL(inbuf, 1);
+ memcpy(sid->id_auth, inbuf+2, 6);
+ if (len < 8 + sid->num_auths*4) return False;
+ for (i=0;i<sid->num_auths;i++) {
+ sid->sub_auths[i] = IVAL(inbuf, 8+i*4);
+ }
+ return True;
+}
+
-BOOL sid_equal(DOM_SID *sid1, DOM_SID *sid2)
+/*****************************************************************
+ Compare the domain portion of two sids.
+*****************************************************************/
+int sid_compare_domain(const DOM_SID *sid1, const DOM_SID *sid2)
{
int i;
- /* compare most likely different rids, first: i.e start at end */
- for (i = sid1->num_auths-1; i >= 0; --i)
- if (sid1->sub_auths[i] != sid2->sub_auths[i])
- return False;
+ if (sid1 == sid2) return 0;
+ if (!sid1) return -1;
+ if (!sid2) return 1;
- if (sid1->num_auths != sid2->num_auths)
- return False;
if (sid1->sid_rev_num != sid2->sid_rev_num)
- return False;
+ return sid1->sid_rev_num - sid2->sid_rev_num;
for (i = 0; i < 6; i++)
if (sid1->id_auth[i] != sid2->id_auth[i])
- return False;
+ return sid1->id_auth[i] - sid2->id_auth[i];
- return True;
+ return 0;
}
-
/*****************************************************************
- Calculates size of a sid.
+ Compare two sids.
*****************************************************************/
-
-size_t sid_size(DOM_SID *sid)
+int sid_compare(const DOM_SID *sid1, const DOM_SID *sid2)
{
- if (sid == NULL)
- return 0;
-
- return sid->num_auths * sizeof(uint32) + 8;
-}
+ int i;
-static BOOL read_sid_from_file(int fd, char *sid_file, DOM_SID *sid)
-{
- fstring fline;
- fstring sid_str;
-
- memset(fline, '\0', sizeof(fline));
+ if (sid1 == sid2) return 0;
+ if (!sid1) return -1;
+ if (!sid2) return 1;
- if (read(fd, fline, sizeof(fline) -1 ) < 0) {
- DEBUG(0,("unable to read file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- return False;
- }
+ /* compare most likely different rids, first: i.e start at end */
+ if (sid1->num_auths != sid2->num_auths)
+ return sid1->num_auths - sid2->num_auths;
- /*
- * Convert to the machine SID.
- */
+ for (i = sid1->num_auths-1; i >= 0; --i)
+ if (sid1->sub_auths[i] != sid2->sub_auths[i])
+ return sid1->sub_auths[i] - sid2->sub_auths[i];
- fline[sizeof(fline)-1] = '\0';
- if (!string_to_sid(sid, fline)) {
- DEBUG(0,("unable to read sid.\n"));
- return False;
- }
+ return sid_compare_domain(sid1, sid2);
+}
- sid_to_string(sid_str, sid);
- DEBUG(5,("read_sid_from_file: sid %s\n", sid_str));
- return True;
+/*****************************************************************
+ Compare two sids.
+*****************************************************************/
+BOOL sid_equal(const DOM_SID *sid1, const DOM_SID *sid2)
+{
+ return sid_compare(sid1, sid2) == 0;
}
-/****************************************************************************
- Generate the global machine sid. Look for the DOMAINNAME.SID file first, if
- not found then look in smb.conf and use it to create the DOMAINNAME.SID file.
-****************************************************************************/
-BOOL read_sid(char *sam_name, DOM_SID *sid)
-{
- int fd;
- char *p;
- pstring sid_file;
- fstring file_name;
- SMB_STRUCT_STAT st;
- pstrcpy(sid_file, lp_smb_passwd_file());
+/*****************************************************************
+ Check if the SID is our domain SID (S-1-5-21-x-y-z).
+*****************************************************************/
+BOOL sid_check_is_domain(const DOM_SID *sid)
+{
+ return sid_equal(sid, &global_sam_sid);
+}
- DEBUG(10,("read_sid: Domain: %s\n", sam_name));
- if (sid_file[0] == 0)
- {
- DEBUG(0,("cannot find smb passwd file\n"));
- return False;
- }
+/*****************************************************************
+ Check if the SID is the builtin SID (S-1-5-32).
+*****************************************************************/
+BOOL sid_check_is_builtin(const DOM_SID *sid)
+{
+ return sid_equal(sid, &global_sid_Builtin);
+}
- p = strrchr(sid_file, '/');
- if (p != NULL)
- {
- *++p = '\0';
- }
- if (!directory_exist(sid_file, NULL))
- {
- if (mkdir(sid_file, 0700) != 0)
- {
- DEBUG(0,("can't create private directory %s : %s\n",
- sid_file, strerror(errno)));
- return False;
- }
- }
+/*****************************************************************
+ Check if the SID is our domain SID (S-1-5-21-x-y-z).
+*****************************************************************/
+BOOL sid_check_is_in_our_domain(const DOM_SID *sid)
+{
+ DOM_SID dom_sid;
+ uint32 rid;
- slprintf(file_name, sizeof(file_name)-1, "%s.SID", sam_name);
- strupper(file_name);
- pstrcat(sid_file, file_name);
-
- if ((fd = sys_open(sid_file, O_RDWR | O_CREAT, 0644)) == -1) {
- DEBUG(0,("unable to open or create file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- return False;
- }
-
- /*
- * Check if the file contains data.
- */
+ sid_copy(&dom_sid, sid);
+ sid_split_rid(&dom_sid, &rid);
- if (sys_fstat(fd, &st) < 0) {
- DEBUG(0,("unable to stat file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- close(fd);
- return False;
- }
-
- if (st.st_size == 0)
- {
- close(fd);
- return False;
- }
+ return sid_equal(&dom_sid, &global_sam_sid);
+}
- /*
- * We have a valid SID - read it.
- */
+/*****************************************************************
+ Check if the SID is our domain SID (S-1-5-21-x-y-z).
+*****************************************************************/
+BOOL sid_check_is_in_builtin(const DOM_SID *sid)
+{
+ DOM_SID dom_sid;
+ uint32 rid;
- if (!read_sid_from_file(fd, sid_file, sid))
- {
- DEBUG(0,("unable to read file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- close(fd);
- return False;
- }
- close(fd);
- return True;
-}
+ sid_copy(&dom_sid, sid);
+ sid_split_rid(&dom_sid, &rid);
+
+ return sid_equal(&dom_sid, &global_sid_Builtin);
+}
-/****************************************************************************
- Generate the global machine sid. Look for the DOMAINNAME.SID file first, if
- not found then look in smb.conf and use it to create the DOMAINNAME.SID file.
-****************************************************************************/
-BOOL write_sid(char *sam_name, DOM_SID *sid)
-{
- int fd;
- char *p;
- pstring sid_file;
- fstring sid_string;
- fstring file_name;
- SMB_STRUCT_STAT st;
-
- pstrcpy(sid_file, lp_smb_passwd_file());
- sid_to_string(sid_string, sid);
-
- DEBUG(10,("write_sid: Domain: %s SID: %s\n", sam_name, sid_string));
- fstrcat(sid_string, "\n");
-
- if (sid_file[0] == 0)
- {
- DEBUG(0,("cannot find smb passwd file\n"));
- return False;
- }
+/*****************************************************************
+ Calculates size of a sid.
+*****************************************************************/
- p = strrchr(sid_file, '/');
- if (p != NULL)
- {
- *++p = '\0';
- }
+size_t sid_size(DOM_SID *sid)
+{
+ if (sid == NULL)
+ return 0;
- if (!directory_exist(sid_file, NULL)) {
- if (mkdir(sid_file, 0700) != 0) {
- DEBUG(0,("can't create private directory %s : %s\n",
- sid_file, strerror(errno)));
- return False;
- }
- }
+ return sid->num_auths * sizeof(uint32) + 8;
+}
- slprintf(file_name, sizeof(file_name)-1, "%s.SID", sam_name);
- strupper(file_name);
- pstrcat(sid_file, file_name);
-
- if ((fd = sys_open(sid_file, O_RDWR | O_CREAT, 0644)) == -1) {
- DEBUG(0,("unable to open or create file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- return False;
- }
-
- /*
- * Check if the file contains data.
- */
-
- if (sys_fstat(fd, &st) < 0) {
- DEBUG(0,("unable to stat file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- close(fd);
- return False;
- }
-
- if (st.st_size > 0)
- {
- /*
- * We have a valid SID already.
- */
- close(fd);
- DEBUG(0,("SID file %s already exists\n", sid_file));
- return False;
- }
-
- if (!do_file_lock(fd, 60, F_WRLCK))
- {
- DEBUG(0,("unable to lock file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- close(fd);
- return False;
- }
-
- /*
- * At this point we have a blocking lock on the SID
- * file - check if in the meantime someone else wrote
- * SID data into the file. If so - they were here first,
- * use their data.
- */
-
- if (sys_fstat(fd, &st) < 0)
- {
- DEBUG(0,("unable to stat file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- close(fd);
- return False;
- }
-
- if (st.st_size > 0)
- {
- /*
- * Unlock as soon as possible to reduce
- * contention on the exclusive lock.
- */
- do_file_lock(fd, 60, F_UNLCK);
-
- /*
- * We have a valid SID already.
- */
-
- DEBUG(0,("SID file %s already exists\n", sid_file));
- close(fd);
- return False;
- }
-
- /*
- * The file is still empty and we have an exlusive lock on it.
- * Write out out SID data into the file.
- */
-
- if (fchmod(fd, 0644) < 0)
- {
- DEBUG(0,("unable to set correct permissions on file %s. \
-Error was %s\n", sid_file, strerror(errno) ));
- close(fd);
- return False;
- }
-
- if (write(fd, sid_string, strlen(sid_string)) != strlen(sid_string))
- {
- DEBUG(0,("unable to write file %s. Error was %s\n",
- sid_file, strerror(errno) ));
- close(fd);
- return False;
- }
-
- /*
- * Unlock & exit.
- */
-
- do_file_lock(fd, 60, F_UNLCK);
- close(fd);
- return True;
-}
+/*****************************************************************
+ Returns true if SID is internal (and non-mappable).
+*****************************************************************/
-/****************************************************************************
-create a random SID.
-****************************************************************************/
-BOOL create_new_sid(DOM_SID *sid)
+BOOL non_mappable_sid(DOM_SID *sid)
{
- uchar raw_sid_data[12];
- fstring sid_string;
- int i;
+ DOM_SID dom;
+ uint32 rid;
- /*
- * Generate the new sid data & turn it into a string.
- */
- generate_random_buffer(raw_sid_data, 12, True);
-
- fstrcpy(sid_string, "S-1-5-21");
- for(i = 0; i < 3; i++)
- {
- fstring tmp_string;
- slprintf(tmp_string, sizeof(tmp_string) - 1, "-%u", IVAL(raw_sid_data, i*4));
- fstrcat(sid_string, tmp_string);
- }
-
- fstrcat(sid_string, "\n");
-
- /*
- * Ensure our new SID is valid.
- */
-
- if (!string_to_sid(sid, sid_string))
- {
- DEBUG(0,("unable to generate machine SID.\n"));
- return False;
- }
+ sid_copy(&dom, sid);
+ sid_split_rid(&dom, &rid);
- return True;
+ if (sid_equal(&dom, &global_sid_Builtin))
+ return True;
+
+ if (sid_equal(&dom, &global_sid_Creator_Owner_Domain))
+ return True;
+
+ if (sid_equal(&dom, &global_sid_NT_Authority))
+ return True;
+
+ return False;
}
-
+
+/*
+ return the binary string representation of a DOM_SID
+ caller must free
+*/
+char *sid_binstring(DOM_SID *sid)
+{
+ char *buf, *s;
+ int len = sid_size(sid);
+ buf = malloc(len);
+ if (!buf) return NULL;
+ sid_linearize(buf, len, sid);
+ s = binary_string(buf, len);
+ free(buf);
+ return s;
+}
+