diff options
Diffstat (limited to 'winsup/cygwin/sec_helper.cc')
| -rw-r--r-- | winsup/cygwin/sec_helper.cc | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/winsup/cygwin/sec_helper.cc b/winsup/cygwin/sec_helper.cc deleted file mode 100644 index cfa0fafce..000000000 --- a/winsup/cygwin/sec_helper.cc +++ /dev/null @@ -1,389 +0,0 @@ -/* sec_helper.cc: NT security helper functions - - Copyright 2000, 2001, 2002 Red Hat, Inc. - - Written by Corinna Vinschen <corinna@vinschen.de> - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include <grp.h> -#include <pwd.h> -#include <unistd.h> -#include <stdlib.h> -#include <errno.h> -#include <limits.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/acl.h> -#include <ctype.h> -#include <wingdi.h> -#include <winuser.h> -#include <wininet.h> -#include "cygerrno.h" -#include "security.h" -#include "fhandler.h" -#include "path.h" -#include "dtable.h" -#include "pinfo.h" -#include "cygheap.h" - -SID_IDENTIFIER_AUTHORITY sid_auth[] = { - {SECURITY_NULL_SID_AUTHORITY}, - {SECURITY_WORLD_SID_AUTHORITY}, - {SECURITY_LOCAL_SID_AUTHORITY}, - {SECURITY_CREATOR_SID_AUTHORITY}, - {SECURITY_NON_UNIQUE_AUTHORITY}, - {SECURITY_NT_AUTHORITY} -}; - -cygsid well_known_null_sid ("S-1-0-0"); -cygsid well_known_world_sid ("S-1-1-0"); -cygsid well_known_local_sid ("S-1-2-0"); -cygsid well_known_creator_owner_sid ("S-1-3-0"); -cygsid well_known_dialup_sid ("S-1-5-1"); -cygsid well_known_network_sid ("S-1-5-2"); -cygsid well_known_batch_sid ("S-1-5-3"); -cygsid well_known_interactive_sid ("S-1-5-4"); -cygsid well_known_service_sid ("S-1-5-6"); -cygsid well_known_authenticated_users_sid ("S-1-5-11"); -cygsid well_known_system_sid ("S-1-5-18"); -cygsid 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) -{ - DWORD i; - - if (s > 5 || cnt < 1 || cnt > 8) - { - psid = NO_SID; - return NULL; - } - set (); - InitializeSid(psid, &sid_auth[s], cnt); - for (i = 0; i < cnt; ++i) - memcpy ((char *) psid + 8 + sizeof (DWORD) * i, &r[i], sizeof (DWORD)); - return psid; -} - -const PSID -cygsid::getfromstr (const char *nsidstr) -{ - char sid_buf[256]; - char *t, *lasts; - DWORD cnt = 0; - DWORD s = 0; - DWORD i, r[8]; - - if (!nsidstr || strncmp (nsidstr, "S-1-", 4)) - { - psid = NO_SID; - return NULL; - } - - strcpy (sid_buf, nsidstr); - - for (t = sid_buf + 4, i = 0; - cnt < 8 && (t = strtok_r (t, "-", &lasts)); - t = NULL, ++i) - if (i == 0) - s = strtoul (t, NULL, 10); - else - r[cnt++] = strtoul (t, NULL, 10); - - return get_sid (s, cnt, r); -} - -BOOL -cygsid::getfrompw (const struct passwd *pw) -{ - char *sp = (pw && pw->pw_gecos) ? strrchr (pw->pw_gecos, ',') : NULL; - return (*this = sp ? sp + 1 : "") != NULL; -} - -BOOL -cygsid::getfromgr (const struct __group32 *gr) -{ - char *sp = (gr && gr->gr_passwd) ? gr->gr_passwd : NULL; - return (*this = sp ?: "") != NULL; -} - -int -cygsid::get_id (BOOL search_grp, int *type) -{ - if (!psid) - { - set_errno (EINVAL); - return -1; - } - if (!IsValidSid (psid)) - { - __seterrno (); - small_printf ("IsValidSid failed with %E"); - return -1; - } - - /* First try to get SID from passwd or group entry */ - if (allow_ntsec) - { - cygsid sid; - int id = -1; - - if (!search_grp) - { - struct passwd *pw; - for (int pidx = 0; (pw = internal_getpwent (pidx)); ++pidx) - { - if (sid.getfrompw (pw) && sid == psid) - { - id = pw->pw_uid; - break; - } - } - if (id >= 0) - { - if (type) - *type = USER; - return id; - } - } - if (search_grp || type) - { - struct __group32 *gr; - for (int gidx = 0; (gr = internal_getgrent (gidx)); ++gidx) - { - if (sid.getfromgr (gr) && sid == psid) - { - id = gr->gr_gid; - break; - } - } - if (id >= 0) - { - if (type) - *type = GROUP; - return id; - } - } - } - - /* We use the RID as default UID/GID */ - int id = *GetSidSubAuthority(psid, *GetSidSubAuthorityCount(psid) - 1); - - /* - * The RID maybe -1 if accountname == computername. - * In this case we search for the accountname in the passwd and group files. - * If type is needed, we search in each case. - */ - if (id == -1 || type) - { - char account[UNLEN + 1]; - char domain[INTERNET_MAX_HOST_NAME_LENGTH + 1]; - DWORD acc_len = UNLEN + 1; - DWORD dom_len = INTERNET_MAX_HOST_NAME_LENGTH + 1; - SID_NAME_USE acc_type; - - if (!LookupAccountSid (NULL, psid, account, &acc_len, - domain, &dom_len, &acc_type)) - { - __seterrno (); - return -1; - } - - switch (acc_type) - { - case SidTypeGroup: - case SidTypeAlias: - case SidTypeWellKnownGroup: - if (type) - *type = GROUP; - if (id == -1) - { - struct __group32 *gr = getgrnam32 (account); - if (gr) - id = gr->gr_gid; - } - break; - case SidTypeUser: - if (type) - *type = USER; - if (id == -1) - { - struct passwd *pw = getpwnam (account); - if (pw) - id = pw->pw_uid; - } - break; - default: - break; - } - } - if (id == -1) - id = getuid32 (); - return id; -} - -BOOL -is_grp_member (__uid32_t uid, __gid32_t gid) -{ - extern int getgroups32 (int, __gid32_t *, __gid32_t, const char *); - BOOL grp_member = TRUE; - - struct passwd *pw = getpwuid32 (uid); - __gid32_t grps[NGROUPS_MAX]; - int cnt = getgroups32 (NGROUPS_MAX, grps, - pw ? pw->pw_gid : myself->gid, - pw ? pw->pw_name : cygheap->user.name ()); - int i; - for (i = 0; i < cnt; ++i) - if (grps[i] == gid) - break; - grp_member = (i < cnt); - return grp_member; -} - -#if 0 // unused -#define SIDLEN (sidlen = MAX_SID_LEN, &sidlen) -#define DOMLEN (domlen = INTERNET_MAX_HOST_NAME_LENGTH, &domlen) - -BOOL -lookup_name (const char *name, const char *logsrv, PSID ret_sid) -{ - cygsid sid; - DWORD sidlen; - char domuser[INTERNET_MAX_HOST_NAME_LENGTH + UNLEN + 2]; - char dom[INTERNET_MAX_HOST_NAME_LENGTH + 1]; - DWORD domlen; - SID_NAME_USE acc_type; - - debug_printf ("name : %s", name ? name : "NULL"); - - if (!name) - return FALSE; - - if (cygheap->user.domain ()) - { - strcat (strcat (strcpy (domuser, cygheap->user.domain ()), "\\"), name); - if (LookupAccountName (NULL, domuser, sid, SIDLEN, dom, DOMLEN, &acc_type) - && legal_sid_type (acc_type)) - goto got_it; - if (logsrv && *logsrv - && LookupAccountName (logsrv, domuser, sid, SIDLEN, - dom, DOMLEN, &acc_type) - && legal_sid_type (acc_type)) - goto got_it; - } - if (logsrv && *logsrv) - { - if (LookupAccountName (logsrv, name, sid, SIDLEN, dom, DOMLEN, &acc_type) - && legal_sid_type (acc_type)) - goto got_it; - if (acc_type == SidTypeDomain) - { - strcat (strcat (strcpy (domuser, dom), "\\"), name); - if (LookupAccountName (logsrv, domuser, sid, SIDLEN, - dom, DOMLEN, &acc_type)) - goto got_it; - } - } - if (LookupAccountName (NULL, name, sid, SIDLEN, dom, DOMLEN, &acc_type) - && legal_sid_type (acc_type)) - goto got_it; - if (acc_type == SidTypeDomain) - { - strcat (strcat (strcpy (domuser, dom), "\\"), name); - if (LookupAccountName (NULL, domuser, sid, SIDLEN, dom, DOMLEN,&acc_type)) - goto got_it; - } - debug_printf ("LookupAccountName(%s) %E", name); - __seterrno (); - return FALSE; - -got_it: - debug_printf ("sid : [%d]", *GetSidSubAuthority((PSID) sid, - *GetSidSubAuthorityCount((PSID) sid) - 1)); - - if (ret_sid) - memcpy (ret_sid, sid, sidlen); - - return TRUE; -} - -#undef SIDLEN -#undef DOMLEN -#endif //unused - -int -set_process_privilege (const char *privilege, BOOL enable) -{ - HANDLE hToken = NULL; - LUID restore_priv; - TOKEN_PRIVILEGES new_priv, orig_priv; - int ret = -1; - DWORD size; - - if (!OpenProcessToken (hMainProc, TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, - &hToken)) - { - __seterrno (); - goto out; - } - - if (!LookupPrivilegeValue (NULL, privilege, &restore_priv)) - { - __seterrno (); - goto out; - } - - new_priv.PrivilegeCount = 1; - new_priv.Privileges[0].Luid = restore_priv; - new_priv.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED : 0; - - if (!AdjustTokenPrivileges (hToken, FALSE, &new_priv, - sizeof orig_priv, &orig_priv, &size)) - { - __seterrno (); - goto out; - } - /* AdjustTokenPrivileges returns TRUE even if the privilege could not - be enabled. GetLastError() returns an correct error code, though. */ - if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED) - { - debug_printf ("Privilege %s couldn't be assigned", privilege); - __seterrno (); - goto out; - } - - ret = orig_priv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED ? 1 : 0; - -out: - if (hToken) - CloseHandle (hToken); - - syscall_printf ("%d = set_process_privilege (%s, %d)",ret, privilege, enable); - return ret; -} |