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* security.h (class cygpsid): New class.

Browse Source 
(class cygsid): Use cygpsid as base. Remove members psid, get_id,
	get_uid, get_gid, string, debug_printf and the == and != operators.
	(cygsidlist::clear_supp): Only do work if setgroups has been called.
	* sec_helper.cc: Define sid_auth NO_COPY.
	(cygpsid::operator==): New operator.
	(cygpsid::get_id): New function.
	(cygpsid::string): New function.
	(cygsid::string): Delete.
	(cygsid::get_id): Delete.
	* pwdgrp.h: Change arguments of internal_getpwsid,
	internal_getgrsid and internal_getgroups to cygpsid.
	* passwd.cc (internal_getpwsid): Change argument from cygsid to cygpsid.
	* grp.cc (internal_getgrsid): Ditto.
	(internal_getgroups): Ditto.
This commit is contained in:
Corinna Vinschen 2003-02-04 14:58:04 +00:00
parent e0c94f4793
commit 4a21c2d5c8
6 changed files with 123 additions and 91 deletions
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18
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,21 @@
2003-02-04 Pierre Humblet <pierre.humblet@ieee.org>
* security.h (class cygpsid): New class.
(class cygsid): Use cygpsid as base. Remove members psid, get_id,
get_uid, get_gid, string, debug_printf and the == and != operators.
(cygsidlist::clear_supp): Only do work if setgroups has been called.
* sec_helper.cc: Define sid_auth NO_COPY.
(cygpsid::operator==): New operator.
(cygpsid::get_id): New function.
(cygpsid::string): New function.
(cygsid::string): Delete.
(cygsid::get_id): Delete.
* pwdgrp.h: Change arguments of internal_getpwsid,
internal_getgrsid and internal_getgroups to cygpsid.
* passwd.cc (internal_getpwsid): Change argument from cygsid to cygpsid.
* grp.cc (internal_getgrsid): Ditto.
(internal_getgroups): Ditto.
2003-02-03 Christopher Faylor <cgf@redhat.com>
Eliminate most unneeded this-> pointers throughout.

4
winsup/cygwin/grp.cc
View File

@ -107,7 +107,7 @@ pwdgrp::read_group ()
}
struct __group32 *
internal_getgrsid (cygsid &sid)
internal_getgrsid (cygpsid &sid)
{
char sid_string[128];
@ -231,7 +231,7 @@ internal_getgrent (int pos)
}
int
internal_getgroups (int gidsetsize, __gid32_t *grouplist, cygsid * srchsid)
internal_getgroups (int gidsetsize, __gid32_t *grouplist, cygpsid * srchsid)
{
HANDLE hToken = NULL;
DWORD size;

2
winsup/cygwin/passwd.cc
View File

@ -97,7 +97,7 @@ pwdgrp::read_passwd ()
}
struct passwd *
internal_getpwsid (cygsid &sid)
internal_getpwsid (cygpsid &sid)
{
struct passwd *pw;
char *ptr1, *ptr2, *endptr;

6
winsup/cygwin/pwdgrp.h
View File

@ -12,14 +12,14 @@ details. */
/* These functions are needed to allow searching and walking through
the passwd and group lists */
extern struct passwd *internal_getpwsid (cygsid &);
extern struct passwd *internal_getpwsid (cygpsid &);
extern struct passwd *internal_getpwnam (const char *, bool = FALSE);
extern struct passwd *internal_getpwuid (__uid32_t, bool = FALSE);
extern struct __group32 *internal_getgrsid (cygsid &);
extern struct __group32 *internal_getgrsid (cygpsid &);
extern struct __group32 *internal_getgrgid (__gid32_t gid, bool = FALSE);
extern struct __group32 *internal_getgrnam (const char *, bool = FALSE);
extern struct __group32 *internal_getgrent (int);
int internal_getgroups (int, __gid32_t *, cygsid * = NULL);
int internal_getgroups (int, __gid32_t *, cygpsid * = NULL);
#include "sync.h"
class pwdgrp

111
winsup/cygwin/sec_helper.cc
View File

@ -39,7 +39,7 @@ SECURITY_ATTRIBUTES NO_COPY sec_none_nih;
SECURITY_ATTRIBUTES NO_COPY sec_all;
SECURITY_ATTRIBUTES NO_COPY sec_all_nih;
SID_IDENTIFIER_AUTHORITY sid_auth[] = {
SID_IDENTIFIER_AUTHORITY NO_COPY sid_auth[] = {
{SECURITY_NULL_SID_AUTHORITY},
{SECURITY_WORLD_SID_AUTHORITY},
{SECURITY_LOCAL_SID_AUTHORITY},
@ -62,6 +62,63 @@ cygsid well_known_authenticated_users_sid;
cygsid well_known_system_sid;
cygsid well_known_admins_sid;
bool
cygpsid::operator== (const char *nsidstr) const
{
cygsid nsid (nsidstr);
return psid == nsid;
}
__uid32_t
cygpsid::get_id (BOOL search_grp, int *type)
{
/* First try to get SID from group, then passwd */
__uid32_t id = ILLEGAL_UID;
if (search_grp)
{
struct __group32 *gr;
if (cygheap->user.groups.pgsid == psid)
id = myself->gid;
else if ((gr = internal_getgrsid (*this)))
id = gr->gr_gid;
if (id != ILLEGAL_UID)
{
if (type)
*type = GROUP;
return id;
}
}
if (!search_grp || type)
{
struct passwd *pw;
if (*this == cygheap->user.sid ())
id = myself->uid;
else if ((pw = internal_getpwsid (*this)))
id = pw->pw_uid;
if (id != ILLEGAL_UID && type)
*type = USER;
}
return id;
}
char *
cygpsid::string (char *nsidstr) const
{
char *t;
DWORD i;
if (!psid || !nsidstr)
return NULL;
strcpy (nsidstr, "S-1-");
t = nsidstr + sizeof ("S-1-") - 1;
t += __small_sprintf (t, "%u", GetSidIdentifierAuthority (psid)->Value[5]);
for (i = 0; i < *GetSidSubAuthorityCount (psid); ++i)
t += __small_sprintf (t, "-%lu", *GetSidSubAuthority (psid, i));
return nsidstr;
}
void
cygsid::init ()
{
@ -80,25 +137,6 @@ cygsid::init ()
well_known_admins_sid = "S-1-5-32-544";
}
char *
cygsid::string (char *nsidstr) const
{
char t[32];
DWORD i;
if (!psid || !nsidstr)
return NULL;
strcpy (nsidstr, "S-1-");
__small_sprintf (t, "%u", GetSidIdentifierAuthority (psid)->Value[5]);
strcat (nsidstr, t);
for (i = 0; i < *GetSidSubAuthorityCount (psid); ++i)
{
__small_sprintf (t, "-%lu", *GetSidSubAuthority (psid, i));
strcat (nsidstr, t);
}
return nsidstr;
}
PSID
cygsid::get_sid (DWORD s, DWORD cnt, DWORD *r)
{
@ -148,39 +186,6 @@ cygsid::getfromgr (const struct __group32 *gr)
return (*this = sp) != NULL;
}
__uid32_t
cygsid::get_id (BOOL search_grp, int *type)
{
/* First try to get SID from passwd or group entry */
__uid32_t id = ILLEGAL_UID;
if (!search_grp)
{
struct passwd *pw;
if (*this == cygheap->user.sid ())
id = myself->uid;
else if ((pw = internal_getpwsid (*this)))
id = pw->pw_uid;
if (id != ILLEGAL_UID)
{
if (type)
*type = USER;
return id;
}
}
if (search_grp || type)
{
struct __group32 *gr;
if (cygheap->user.groups.pgsid == psid)
id = myself->gid;
else if ((gr = internal_getgrsid (*this)))
id = gr->gr_gid;
if (id != ILLEGAL_UID && type)
*type = GROUP;
}
return id;
}
BOOL
is_grp_member (__uid32_t uid, __gid32_t gid)
{

73
winsup/cygwin/security.h
View File

@ -20,8 +20,40 @@ details. */
#define NO_SID ((PSID)NULL)
class cygsid {
class cygpsid {
protected:
PSID psid;
public:
cygpsid () {}
cygpsid (PSID nsid) { psid = nsid; }
operator const PSID () { return psid; }
const PSID operator= (PSID nsid) { return psid = nsid;}
__uid32_t get_id (BOOL search_grp, int *type = NULL);
int get_uid () { return get_id (FALSE); }
int get_gid () { return get_id (TRUE); }
char *string (char *nsidstr) const;
bool operator== (const PSID nsid) const
{
if (!psid || !nsid)
return nsid == psid;
return EqualSid (psid, nsid);
}
bool operator!= (const PSID nsid) const
{ return !(*this == nsid); }
bool operator== (const char *nsidstr) const;
bool operator!= (const char *nsidstr) const
{ return !(*this == nsidstr); }
void debug_print (const char *prefix = NULL) const
{
char buf[256];
debug_printf ("%s %s", prefix ?: "", string (buf) ?: "NULL");
}
};
class cygsid : public cygpsid {
char sbuf[MAX_SID_LEN];
const PSID getfromstr (const char *nsidstr);
@ -50,7 +82,7 @@ public:
inline const PSID operator= (const char *nsidstr)
{ return getfromstr (nsidstr); }
inline cygsid () : psid ((PSID) sbuf) {}
inline cygsid () : cygpsid ((PSID) sbuf) {}
inline cygsid (const PSID nsid) { *this = nsid; }
inline cygsid (const char *nstrsid) { *this = nstrsid; }
@ -58,34 +90,6 @@ public:
BOOL getfrompw (const struct passwd *pw);
BOOL getfromgr (const struct __group32 *gr);
__uid32_t get_id (BOOL search_grp, int *type = NULL);
inline int get_uid () { return get_id (FALSE); }
inline int get_gid () { return get_id (TRUE); }
char *string (char *nsidstr) const;
inline BOOL operator== (const PSID nsid) const
{
if (!psid || !nsid)
return nsid == psid;
return EqualSid (psid, nsid);
}
inline BOOL operator== (const char *nsidstr) const
{
cygsid nsid (nsidstr);
return *this == nsid;
}
inline BOOL operator!= (const PSID nsid) const
{ return !(*this == nsid); }
inline BOOL operator!= (const char *nsidstr) const
{ return !(*this == nsidstr); }
void debug_print (const char *prefix = NULL) const
{
char buf[256];
debug_printf ("%s %s", prefix ?: "", string (buf) ?: "NULL");
}
};
typedef enum { cygsidlist_empty, cygsidlist_alloc, cygsidlist_auto } cygsidlist_type;
@ -171,8 +175,11 @@ public:
}
void clear_supp ()
{
sgsids.free_sids ();
ischanged = TRUE;
if (issetgroups ())
{
sgsids.free_sids ();
ischanged = TRUE;
}
}
void update_pgrp (const PSID sid)
{
@ -222,6 +229,8 @@ BOOL __stdcall add_access_denied_ace (PACL acl, int offset, DWORD attributes, PS
void set_security_attribute (int attribute, PSECURITY_ATTRIBUTES psa,
void *sd_buf, DWORD sd_buf_size);
bool get_sids_info (cygpsid, cygpsid, __uid32_t * , __gid32_t *);
/* Try a subauthentication. */
HANDLE subauth (struct passwd *pw);
/* Try creating a token directly. */