#endif
#include <mono/metadata/appdomain.h>
+#include <mono/metadata/image.h>
#include <mono/metadata/exception.h>
+#include <mono/metadata/object-internals.h>
+#include <mono/metadata/metadata-internals.h>
#include <mono/metadata/security.h>
#include <mono/io-layer/io-layer.h>
#include <mono/utils/strenc.h>
-#ifndef PLATFORM_WIN32
+#ifdef PLATFORM_WIN32
+
+#include <aclapi.h>
+#include <accctrl.h>
+
+#ifndef PROTECTED_DACL_SECURITY_INFORMATION
+#define PROTECTED_DACL_SECURITY_INFORMATION 0x80000000L
+#endif
+
+#else
#include <config.h>
#include <grp.h>
#include <pwd.h>
#include <string.h>
+#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
/* Disclaimers */
+#if defined(__GNUC__)
+
#ifndef HAVE_GETGRGID_R
#warning Non-thread safe getgrgid being used!
#endif
#warning Non-thread safe getpwuid being used!
#endif
+#endif /* defined(__GNUC__) */
+
#endif /* not PLATFORM_WIN32 */
}
}
else {
- // nothing -> return NULL
+ /* nothing -> return NULL */
g_free (user);
}
#else /* not PLATFORM_WIN32 */
+#define MONO_SYSCONF_DEFAULT_SIZE ((size_t) 1024)
+
+/*
+ * Ensure we always get a valid (usable) value from sysconf.
+ * In case of error, we return the default value.
+ */
+static size_t mono_sysconf (int name)
+{
+ size_t size = (size_t) sysconf (name);
+ /* default value */
+ return (size == -1) ? MONO_SYSCONF_DEFAULT_SIZE : size;
+}
+
static gchar*
GetTokenName (uid_t uid)
#ifdef HAVE_GETPWUID_R
#ifdef _SC_GETPW_R_SIZE_MAX
- fbufsize = (size_t) sysconf (_SC_GETPW_R_SIZE_MAX);
+ fbufsize = mono_sysconf (_SC_GETPW_R_SIZE_MAX);
#else
- fbufsize = (size_t) 1024;
+ fbufsize = MONO_SYSCONF_DEFAULT_SIZE;
#endif
fbuf = g_malloc0 (fbufsize);
retval = getpwuid_r (uid, &pwd, fbuf, fbufsize, &p);
#ifdef HAVE_GETPWUID_R
#ifdef _SC_GETPW_R_SIZE_MAX
- fbufsize = (size_t) sysconf (_SC_GETPW_R_SIZE_MAX);
+ fbufsize = mono_sysconf (_SC_GETPW_R_SIZE_MAX);
#else
- fbufsize = (size_t) 1024;
+ fbufsize = MONO_SYSCONF_DEFAULT_SIZE;
#endif
fbuf = g_malloc0 (fbufsize);
OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token);
}
#else
- token = (gpointer) geteuid ();
+ token = GINT_TO_POINTER (geteuid ());
#endif
return token;
}
g_free (tu);
}
#else
- gchar *uname = GetTokenName ((uid_t) token);
+ gchar *uname = GetTokenName ((uid_t) GPOINTER_TO_INT (token));
MONO_ARCH_SAVE_REGS;
#ifdef HAVE_GETPWNAM_R
#ifdef _SC_GETPW_R_SIZE_MAX
- fbufsize = (size_t) sysconf (_SC_GETPW_R_SIZE_MAX);
+ fbufsize = mono_sysconf (_SC_GETPW_R_SIZE_MAX);
#else
- fbufsize = (size_t) 1024;
+ fbufsize = MONO_SYSCONF_DEFAULT_SIZE;
#endif
fbuf = g_malloc0 (fbufsize);
#endif
if (result) {
- token = (gpointer) p->pw_uid;
+ token = GINT_TO_POINTER (p->pw_uid);
}
#ifdef HAVE_GETPWNAM_R
}
-// http://www.dotnet247.com/247reference/msgs/39/195403.aspx
+/* http://www.dotnet247.com/247reference/msgs/39/195403.aspx
// internal static string[] WindowsIdentity._GetRoles (IntPtr token)
+*/
MonoArray*
ves_icall_System_Security_Principal_WindowsIdentity_GetRoles (gpointer token)
{
int i=0;
int num = tg->GroupCount;
- array = mono_array_new (domain, mono_defaults.string_class, num);
+ array = mono_array_new (domain, mono_get_string_class (), num);
for (i=0; i < num; i++) {
gint32 size = 0;
#endif
if (!array) {
/* return empty array of string, i.e. string [0] */
- array = mono_array_new (domain, mono_defaults.string_class, 0);
+ array = mono_array_new (domain, mono_get_string_class (), 0);
}
return array;
}
#ifdef HAVE_GETGRGID_R
#ifdef _SC_GETGR_R_SIZE_MAX
- fbufsize = (size_t) sysconf (_SC_GETGR_R_SIZE_MAX);
+ fbufsize = mono_sysconf (_SC_GETGR_R_SIZE_MAX);
#else
- fbufsize = (size_t) 1024;
+ fbufsize = MONO_SYSCONF_DEFAULT_SIZE;
#endif
fbuf = g_malloc0 (fbufsize);
- retval = getgrgid_r ((gid_t) group, &grp, fbuf, fbufsize, &g);
+ retval = getgrgid_r ((gid_t) GPOINTER_TO_INT (group), &grp, fbuf, fbufsize, &g);
result = ((retval == 0) && (g == &grp));
#else
/* default to non thread-safe but posix compliant function */
- g = getgrgid ((gid_t) group);
+ g = getgrgid ((gid_t) GPOINTER_TO_INT (group));
result = (g != NULL);
#endif
if (result) {
- result = IsMemberOf ((uid_t) user, g);
+ result = IsMemberOf ((uid_t) GPOINTER_TO_INT (user), g);
}
#ifdef HAVE_GETGRGID_R
gchar *fbuf;
gint32 retval;
#ifdef _SC_GETGR_R_SIZE_MAX
- size_t fbufsize = (size_t) sysconf (_SC_GETGR_R_SIZE_MAX);
+ size_t fbufsize = mono_sysconf (_SC_GETGR_R_SIZE_MAX);
#else
- size_t fbufsize = (size_t) 1024;
+ size_t fbufsize = MONO_SYSCONF_DEFAULT_SIZE;
#endif
fbuf = g_malloc0 (fbufsize);
retval = getgrnam_r (utf8_groupname, &grp, fbuf, fbufsize, &g);
#endif
if (result) {
- result = IsMemberOf ((uid_t) user, g);
+ result = IsMemberOf ((uid_t) GPOINTER_TO_INT (user), g);
}
#ifdef HAVE_GETGRNAM_R
return result;
}
+
+
+/* Mono.Security.Cryptography IO related internal calls */
+
+#ifdef PLATFORM_WIN32
+
+static PSID
+GetAdministratorsSid (void)
+{
+ SID_IDENTIFIER_AUTHORITY admins = SECURITY_NT_AUTHORITY;
+ PSID pSid = NULL;
+ if (!AllocateAndInitializeSid (&admins, 2, SECURITY_BUILTIN_DOMAIN_RID,
+ DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &pSid))
+ return NULL;
+ /* Note: this SID must be freed with FreeSid () */
+ return pSid;
+}
+
+
+static PSID
+GetEveryoneSid (void)
+{
+ SID_IDENTIFIER_AUTHORITY everyone = SECURITY_WORLD_SID_AUTHORITY;
+ PSID pSid = NULL;
+ if (!AllocateAndInitializeSid (&everyone, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, &pSid))
+ return NULL;
+ /* Note: this SID must be freed with FreeSid () */
+ return pSid;
+}
+
+
+static PSID
+GetCurrentUserSid (void)
+{
+ PSID sid = NULL;
+ guint32 size = 0;
+ gpointer token = ves_icall_System_Security_Principal_WindowsIdentity_GetCurrentToken ();
+
+ GetTokenInformation (token, TokenUser, NULL, size, (PDWORD)&size);
+ if (size > 0) {
+ TOKEN_USER *tu = g_malloc0 (size);
+ if (GetTokenInformation (token, TokenUser, tu, size, (PDWORD)&size)) {
+ DWORD length = GetLengthSid (tu->User.Sid);
+ sid = (PSID) g_malloc0 (length);
+ if (!CopySid (length, sid, tu->User.Sid)) {
+ g_free (sid);
+ sid = NULL;
+ }
+ }
+ g_free (tu);
+ }
+ /* Note: this SID must be freed with g_free () */
+ return sid;
+}
+
+
+static ACCESS_MASK
+GetRightsFromSid (PSID sid, PACL acl)
+{
+ ACCESS_MASK rights = 0;
+ TRUSTEE trustee;
+
+ BuildTrusteeWithSidW (&trustee, sid);
+ if (GetEffectiveRightsFromAcl (acl, &trustee, &rights) != ERROR_SUCCESS)
+ return 0;
+
+ return rights;
+}
+
+
+static gboolean
+IsMachineProtected (gunichar2 *path)
+{
+ gboolean success = FALSE;
+ PACL pDACL = NULL;
+ PSID pEveryoneSid = NULL;
+
+ DWORD dwRes = GetNamedSecurityInfoW (path, SE_FILE_OBJECT, DACL_SECURITY_INFORMATION, NULL, NULL, &pDACL, NULL, NULL);
+ if (dwRes != ERROR_SUCCESS)
+ return FALSE;
+
+ /* We check that Everyone is still limited to READ-ONLY -
+ but not if new entries have been added by an Administrator */
+
+ pEveryoneSid = GetEveryoneSid ();
+ if (pEveryoneSid) {
+ ACCESS_MASK rights = GetRightsFromSid (pEveryoneSid, pDACL);
+ /* http://msdn.microsoft.com/library/en-us/security/security/generic_access_rights.asp?frame=true */
+ success = (rights == (READ_CONTROL | SYNCHRONIZE | FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES));
+ FreeSid (pEveryoneSid);
+ }
+ /* Note: we don't need to check our own access -
+ we'll know soon enough when reading the file */
+
+ if (pDACL)
+ LocalFree (pDACL);
+
+ return success;
+}
+
+
+static gboolean
+IsUserProtected (gunichar2 *path)
+{
+ gboolean success = FALSE;
+ PACL pDACL = NULL;
+ PSID pEveryoneSid = NULL;
+
+ DWORD dwRes = GetNamedSecurityInfoW (path, SE_FILE_OBJECT,
+ DACL_SECURITY_INFORMATION, NULL, NULL, &pDACL, NULL, NULL);
+ if (dwRes != ERROR_SUCCESS)
+ return FALSE;
+
+ /* We check that our original entries in the ACL are in place -
+ but not if new entries have been added by the user */
+
+ /* Everyone should be denied */
+ pEveryoneSid = GetEveryoneSid ();
+ if (pEveryoneSid) {
+ ACCESS_MASK rights = GetRightsFromSid (pEveryoneSid, pDACL);
+ success = (rights == 0);
+ FreeSid (pEveryoneSid);
+ }
+ /* Note: we don't need to check our own access -
+ we'll know soon enough when reading the file */
+
+ if (pDACL)
+ LocalFree (pDACL);
+
+ return success;
+}
+
+
+static gboolean
+ProtectMachine (gunichar2 *path)
+{
+ PSID pEveryoneSid = GetEveryoneSid ();
+ PSID pAdminsSid = GetAdministratorsSid ();
+ DWORD retval = -1;
+
+ if (pEveryoneSid && pAdminsSid) {
+ PACL pDACL = NULL;
+ EXPLICIT_ACCESS ea [2];
+ ZeroMemory (&ea, 2 * sizeof (EXPLICIT_ACCESS));
+
+ /* grant all access to the BUILTIN\Administrators group */
+ BuildTrusteeWithSidW (&ea [0].Trustee, pAdminsSid);
+ ea [0].grfAccessPermissions = GENERIC_ALL;
+ ea [0].grfAccessMode = SET_ACCESS;
+ ea [0].grfInheritance = SUB_CONTAINERS_AND_OBJECTS_INHERIT;
+ ea [0].Trustee.TrusteeForm = TRUSTEE_IS_SID;
+ ea [0].Trustee.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
+
+ /* read-only access everyone */
+ BuildTrusteeWithSidW (&ea [1].Trustee, pEveryoneSid);
+ ea [1].grfAccessPermissions = GENERIC_READ;
+ ea [1].grfAccessMode = SET_ACCESS;
+ ea [1].grfInheritance = SUB_CONTAINERS_AND_OBJECTS_INHERIT;
+ ea [1].Trustee.TrusteeForm = TRUSTEE_IS_SID;
+ ea [1].Trustee.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
+
+ retval = SetEntriesInAcl (2, ea, NULL, &pDACL);
+ if (retval == ERROR_SUCCESS) {
+ /* with PROTECTED_DACL_SECURITY_INFORMATION we */
+ /* remove any existing ACL (like inherited ones) */
+ retval = SetNamedSecurityInfo (path, SE_FILE_OBJECT,
+ DACL_SECURITY_INFORMATION | PROTECTED_DACL_SECURITY_INFORMATION,
+ NULL, NULL, pDACL, NULL);
+ }
+ if (pDACL)
+ LocalFree (pDACL);
+ }
+
+ if (pEveryoneSid)
+ FreeSid (pEveryoneSid);
+ if (pAdminsSid)
+ FreeSid (pAdminsSid);
+ return (retval == ERROR_SUCCESS);
+}
+
+
+static gboolean
+ProtectUser (gunichar2 *path)
+{
+ DWORD retval = -1;
+
+ PSID pCurrentSid = GetCurrentUserSid ();
+ if (pCurrentSid) {
+ PACL pDACL = NULL;
+ EXPLICIT_ACCESS ea;
+ ZeroMemory (&ea, sizeof (EXPLICIT_ACCESS));
+
+ /* grant exclusive access to the current user */
+ BuildTrusteeWithSidW (&ea.Trustee, pCurrentSid);
+ ea.grfAccessPermissions = GENERIC_ALL;
+ ea.grfAccessMode = SET_ACCESS;
+ ea.grfInheritance = SUB_CONTAINERS_AND_OBJECTS_INHERIT;
+ ea.Trustee.TrusteeForm = TRUSTEE_IS_SID;
+ ea.Trustee.TrusteeType = TRUSTEE_IS_USER;
+
+ retval = SetEntriesInAcl (1, &ea, NULL, &pDACL);
+ if (retval == ERROR_SUCCESS) {
+ /* with PROTECTED_DACL_SECURITY_INFORMATION we
+ remove any existing ACL (like inherited ones) */
+ retval = SetNamedSecurityInfo (path, SE_FILE_OBJECT,
+ DACL_SECURITY_INFORMATION | PROTECTED_DACL_SECURITY_INFORMATION,
+ NULL, NULL, pDACL, NULL);
+ }
+
+ if (pDACL)
+ LocalFree (pDACL);
+ g_free (pCurrentSid); /* g_malloc0 */
+ }
+
+ return (retval == ERROR_SUCCESS);
+}
+
+#else
+
+static gboolean
+IsProtected (MonoString *path, gint32 protection)
+{
+ gboolean result = FALSE;
+ gchar *utf8_name = mono_unicode_to_external (mono_string_chars (path));
+ if (utf8_name) {
+ struct stat st;
+ if (stat (utf8_name, &st) == 0) {
+ result = (((st.st_mode & 0777) & protection) == 0);
+ }
+ g_free (utf8_name);
+ }
+ return result;
+}
+
+
+static gboolean
+Protect (MonoString *path, gint32 file_mode, gint32 add_dir_mode)
+{
+ gboolean result = FALSE;
+ gchar *utf8_name = mono_unicode_to_external (mono_string_chars (path));
+ if (utf8_name) {
+ struct stat st;
+ if (stat (utf8_name, &st) == 0) {
+ int mode = file_mode;
+ if (st.st_mode & S_IFDIR)
+ mode |= add_dir_mode;
+ result = (chmod (utf8_name, mode) == 0);
+ }
+ g_free (utf8_name);
+ }
+ return result;
+}
+
+#endif /* not PLATFORM_WIN32 */
+
+
+MonoBoolean
+ves_icall_Mono_Security_Cryptography_KeyPairPersistence_CanSecure (MonoString *root)
+{
+#if PLATFORM_WIN32
+ gint32 flags;
+
+ MONO_ARCH_SAVE_REGS;
+
+ /* ACL are nice... unless you have FAT or other uncivilized filesystem */
+ if (!GetVolumeInformation (mono_string_chars (root), NULL, 0, NULL, NULL, (LPDWORD)&flags, NULL, 0))
+ return FALSE;
+ return ((flags & FS_PERSISTENT_ACLS) == FS_PERSISTENT_ACLS);
+#else
+ MONO_ARCH_SAVE_REGS;
+ /* we assume some kind of security is applicable outside Windows */
+ return TRUE;
+#endif
+}
+
+
+MonoBoolean
+ves_icall_Mono_Security_Cryptography_KeyPairPersistence_IsMachineProtected (MonoString *path)
+{
+ gboolean ret = FALSE;
+
+ MONO_ARCH_SAVE_REGS;
+
+ /* no one, but the owner, should have write access to the directory */
+#ifdef PLATFORM_WIN32
+ ret = IsMachineProtected (mono_string_chars (path));
+#else
+ ret = IsProtected (path, (S_IWGRP | S_IWOTH));
+#endif
+ return ret;
+}
+
+
+MonoBoolean
+ves_icall_Mono_Security_Cryptography_KeyPairPersistence_IsUserProtected (MonoString *path)
+{
+ gboolean ret = FALSE;
+
+ MONO_ARCH_SAVE_REGS;
+
+ /* no one, but the user, should have access to the directory */
+#ifdef PLATFORM_WIN32
+ ret = IsUserProtected (mono_string_chars (path));
+#else
+ ret = IsProtected (path, (S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH | S_IWOTH | S_IXOTH));
+#endif
+ return ret;
+}
+
+
+MonoBoolean
+ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectMachine (MonoString *path)
+{
+ gboolean ret = FALSE;
+
+ MONO_ARCH_SAVE_REGS;
+
+ /* read/write to owner, read to everyone else */
+#ifdef PLATFORM_WIN32
+ ret = ProtectMachine (mono_string_chars (path));
+#else
+ ret = Protect (path, (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH), (S_IXUSR | S_IXGRP | S_IXOTH));
+#endif
+ return ret;
+}
+
+
+MonoBoolean
+ves_icall_Mono_Security_Cryptography_KeyPairPersistence_ProtectUser (MonoString *path)
+{
+ gboolean ret = FALSE;
+
+ MONO_ARCH_SAVE_REGS;
+
+ /* read/write to user, no access to everyone else */
+#ifdef PLATFORM_WIN32
+ ret = ProtectUser (mono_string_chars (path));
+#else
+ ret = Protect (path, (S_IRUSR | S_IWUSR), S_IXUSR);
+#endif
+ return ret;
+}
+
+
+/*
+ * Returns TRUE if there is "something" where the Authenticode signature is
+ * normally located. Returns FALSE is data directory is empty.
+ *
+ * Note: Neither the structure nor the signature is verified by this function.
+ */
+MonoBoolean
+ves_icall_System_Security_Policy_Evidence_IsAuthenticodePresent (MonoReflectionAssembly *refass)
+{
+ if (refass && refass->assembly && refass->assembly->image) {
+ return mono_image_has_authenticode_entry (refass->assembly->image);
+ }
+ return FALSE;
+}
projects / mono.git / blobdiff