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Drop max_sys_priv wincap

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Convert sys_privs to const struct with TOKEN_PRIVILEGES layout.
Drop function get_system_priv_list.  Just use pointer to sys_privs.

Dropping max_sys_priv from wincaps requires to make sure that the
bitfield is 8 byte aligned on x86_64, otherwise gcc (5.3 only?)
apparently breaks access to the bitfield (off by 4 bytes).

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2015-12-15 16:34:40 +01:00
parent b15d129559
commit 67fd2101ab
5 changed files with 152 additions and 159 deletions
Download Patch File Download Diff File Expand all files Collapse all files

129
winsup/cygwin/sec_auth.cc
View File

@ -598,67 +598,74 @@ get_setgroups_sidlist (cygsidlist &tmp_list, PSID usersid,
tmp_list += groups.pgsid;
}
static ULONG sys_privs[] = {
SE_CREATE_TOKEN_PRIVILEGE,
SE_ASSIGNPRIMARYTOKEN_PRIVILEGE,
SE_LOCK_MEMORY_PRIVILEGE,
SE_INCREASE_QUOTA_PRIVILEGE,
SE_TCB_PRIVILEGE,
SE_SECURITY_PRIVILEGE,
SE_TAKE_OWNERSHIP_PRIVILEGE,
SE_LOAD_DRIVER_PRIVILEGE,
SE_SYSTEM_PROFILE_PRIVILEGE, /* Vista ONLY */
SE_SYSTEMTIME_PRIVILEGE,
SE_PROF_SINGLE_PROCESS_PRIVILEGE,
SE_INC_BASE_PRIORITY_PRIVILEGE,
SE_CREATE_PAGEFILE_PRIVILEGE,
SE_CREATE_PERMANENT_PRIVILEGE,
SE_BACKUP_PRIVILEGE,
SE_RESTORE_PRIVILEGE,
SE_SHUTDOWN_PRIVILEGE,
SE_DEBUG_PRIVILEGE,
SE_AUDIT_PRIVILEGE,
SE_SYSTEM_ENVIRONMENT_PRIVILEGE,
SE_CHANGE_NOTIFY_PRIVILEGE,
SE_UNDOCK_PRIVILEGE,
SE_MANAGE_VOLUME_PRIVILEGE,
SE_IMPERSONATE_PRIVILEGE,
SE_CREATE_GLOBAL_PRIVILEGE,
SE_INCREASE_WORKING_SET_PRIVILEGE,
SE_TIME_ZONE_PRIVILEGE,
SE_CREATE_SYMBOLIC_LINK_PRIVILEGE
};
#define SYSTEM_PRIVILEGES_COUNT (sizeof sys_privs / sizeof *sys_privs)
static PTOKEN_PRIVILEGES
get_system_priv_list (size_t &size)
/* Fixed size TOKEN_PRIVILEGES list to reflect privileges given to the
SYSTEM account by default. */
const struct
{
ULONG max_idx = 0;
while (max_idx < SYSTEM_PRIVILEGES_COUNT
&& sys_privs[max_idx] != wincap.max_sys_priv ())
++max_idx;
if (max_idx >= SYSTEM_PRIVILEGES_COUNT)
api_fatal ("Coding error: wincap privilege %u doesn't exist in sys_privs",
wincap.max_sys_priv ());
size = sizeof (ULONG) + (max_idx + 1) * sizeof (LUID_AND_ATTRIBUTES);
PTOKEN_PRIVILEGES privs = (PTOKEN_PRIVILEGES) malloc (size);
if (!privs)
{
debug_printf ("malloc (system_privs) failed.");
return NULL;
}
privs->PrivilegeCount = 0;
for (ULONG i = 0; i <= max_idx; ++i)
{
privs->Privileges[privs->PrivilegeCount].Luid.HighPart = 0L;
privs->Privileges[privs->PrivilegeCount].Luid.LowPart = sys_privs[i];
privs->Privileges[privs->PrivilegeCount].Attributes =
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT;
++privs->PrivilegeCount;
}
return privs;
}
DWORD PrivilegeCount;
LUID_AND_ATTRIBUTES Privileges[28];
} sys_privs =
{
28,
{
{ { SE_CREATE_TOKEN_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_ASSIGNPRIMARYTOKEN_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_LOCK_MEMORY_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_INCREASE_QUOTA_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_TCB_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_SECURITY_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_TAKE_OWNERSHIP_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_LOAD_DRIVER_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_SYSTEM_PROFILE_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_SYSTEMTIME_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_PROF_SINGLE_PROCESS_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_INC_BASE_PRIORITY_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_CREATE_PAGEFILE_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_CREATE_PERMANENT_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_BACKUP_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_RESTORE_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_SHUTDOWN_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_DEBUG_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_AUDIT_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_SYSTEM_ENVIRONMENT_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_CHANGE_NOTIFY_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_UNDOCK_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_MANAGE_VOLUME_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_IMPERSONATE_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_CREATE_GLOBAL_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_INCREASE_WORKING_SET_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_TIME_ZONE_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT },
{ { SE_CREATE_SYMBOLIC_LINK_PRIVILEGE, 0 },
SE_PRIVILEGE_ENABLED | SE_PRIVILEGE_ENABLED_BY_DEFAULT }
}
};
static PTOKEN_PRIVILEGES
get_priv_list (LSA_HANDLE lsa, cygsid &usersid, cygsidlist &grp_list,
@ -672,7 +679,7 @@ get_priv_list (LSA_HANDLE lsa, cygsid &usersid, cygsidlist &grp_list,
{
if (mandatory_integrity_sid)
*mandatory_integrity_sid = mandatory_system_integrity_sid;
return get_system_priv_list (size);
return (PTOKEN_PRIVILEGES) &sys_privs;
}
if (mandatory_integrity_sid)