#include "../lib/util/util_pw.h"
#include "messages.h"
#include <ccan/hash/hash.h>
+#include "libcli/security/security.h"
+
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
/* Max allowable allococation - 256mb - 0x10000000 */
#define MAX_ALLOC_SIZE (1024*1024*256)
dump_data(10, (const uint8 *)smb_buf_const(buf), bcc);
}
-/*******************************************************************
- Set the length and marker of an encrypted smb packet.
-********************************************************************/
-
-void smb_set_enclen(char *buf,int len,uint16 enc_ctx_num)
-{
- _smb_setlen(buf,len);
-
- SCVAL(buf,4,0xFF);
- SCVAL(buf,5,'E');
- SSVAL(buf,6,enc_ctx_num);
-}
-
-/*******************************************************************
- Set the length and marker of an smb packet.
-********************************************************************/
-
-void smb_setlen(char *buf,int len)
-{
- _smb_setlen(buf,len);
-
- SCVAL(buf,4,0xFF);
- SCVAL(buf,5,'S');
- SCVAL(buf,6,'M');
- SCVAL(buf,7,'B');
-}
-
/*******************************************************************
Setup only the byte count for a smb message.
********************************************************************/
(unsigned long long)sys_getpid(), why));
log_stack_trace();
+#if defined(HAVE_PRCTL) && defined(PR_SET_PTRACER)
+ /*
+ * Make sure all children can attach a debugger.
+ */
+ prctl(PR_SET_PTRACER, getpid(), 0, 0, 0);
+#endif
+
cmd = lp_panic_action();
if (cmd && *cmd) {
DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
return ptr;
}
+
+/*******************************************************************
+ Return True if the filename is one of the special executable types.
+********************************************************************/
+
+bool is_executable(const char *fname)
+{
+ if ((fname = strrchr_m(fname,'.'))) {
+ if (strequal(fname,".com") ||
+ strequal(fname,".dll") ||
+ strequal(fname,".exe") ||
+ strequal(fname,".sym")) {
+ return True;
+ }
+ }
+ return False;
+}
+
+/****************************************************************************
+ Open a file with a share mode - old openX method - map into NTCreate.
+****************************************************************************/
+
+bool map_open_params_to_ntcreate(const char *smb_base_fname,
+ int deny_mode, int open_func,
+ uint32 *paccess_mask,
+ uint32 *pshare_mode,
+ uint32 *pcreate_disposition,
+ uint32 *pcreate_options,
+ uint32_t *pprivate_flags)
+{
+ uint32 access_mask;
+ uint32 share_mode;
+ uint32 create_disposition;
+ uint32 create_options = FILE_NON_DIRECTORY_FILE;
+ uint32_t private_flags = 0;
+
+ DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
+ "open_func = 0x%x\n",
+ smb_base_fname, (unsigned int)deny_mode,
+ (unsigned int)open_func ));
+
+ /* Create the NT compatible access_mask. */
+ switch (GET_OPENX_MODE(deny_mode)) {
+ case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */
+ case DOS_OPEN_RDONLY:
+ access_mask = FILE_GENERIC_READ;
+ break;
+ case DOS_OPEN_WRONLY:
+ access_mask = FILE_GENERIC_WRITE;
+ break;
+ case DOS_OPEN_RDWR:
+ case DOS_OPEN_FCB:
+ access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
+ break;
+ default:
+ DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
+ (unsigned int)GET_OPENX_MODE(deny_mode)));
+ return False;
+ }
+
+ /* Create the NT compatible create_disposition. */
+ switch (open_func) {
+ case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_CREATE;
+ break;
+
+ case OPENX_FILE_EXISTS_OPEN:
+ create_disposition = FILE_OPEN;
+ break;
+
+ case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_OPEN_IF;
+ break;
+
+ case OPENX_FILE_EXISTS_TRUNCATE:
+ create_disposition = FILE_OVERWRITE;
+ break;
+
+ case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_OVERWRITE_IF;
+ break;
+
+ default:
+ /* From samba4 - to be confirmed. */
+ if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
+ create_disposition = FILE_CREATE;
+ break;
+ }
+ DEBUG(10,("map_open_params_to_ntcreate: bad "
+ "open_func 0x%x\n", (unsigned int)open_func));
+ return False;
+ }
+
+ /* Create the NT compatible share modes. */
+ switch (GET_DENY_MODE(deny_mode)) {
+ case DENY_ALL:
+ share_mode = FILE_SHARE_NONE;
+ break;
+
+ case DENY_WRITE:
+ share_mode = FILE_SHARE_READ;
+ break;
+
+ case DENY_READ:
+ share_mode = FILE_SHARE_WRITE;
+ break;
+
+ case DENY_NONE:
+ share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+ break;
+
+ case DENY_DOS:
+ private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS;
+ if (is_executable(smb_base_fname)) {
+ share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+ } else {
+ if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
+ share_mode = FILE_SHARE_READ;
+ } else {
+ share_mode = FILE_SHARE_NONE;
+ }
+ }
+ break;
+
+ case DENY_FCB:
+ private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB;
+ share_mode = FILE_SHARE_NONE;
+ break;
+
+ default:
+ DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
+ (unsigned int)GET_DENY_MODE(deny_mode) ));
+ return False;
+ }
+
+ DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
+ "share_mode = 0x%x, create_disposition = 0x%x, "
+ "create_options = 0x%x private_flags = 0x%x\n",
+ smb_base_fname,
+ (unsigned int)access_mask,
+ (unsigned int)share_mode,
+ (unsigned int)create_disposition,
+ (unsigned int)create_options,
+ (unsigned int)private_flags));
+
+ if (paccess_mask) {
+ *paccess_mask = access_mask;
+ }
+ if (pshare_mode) {
+ *pshare_mode = share_mode;
+ }
+ if (pcreate_disposition) {
+ *pcreate_disposition = create_disposition;
+ }
+ if (pcreate_options) {
+ *pcreate_options = create_options;
+ }
+ if (pprivate_flags) {
+ *pprivate_flags = private_flags;
+ }
+
+ return True;
+
+}
+
+
+void init_modules(void)
+{
+ /* FIXME: This can cause undefined symbol errors :
+ * smb_register_vfs() isn't available in nmbd, for example */
+ if(lp_preload_modules())
+ smb_load_modules(lp_preload_modules());
+}
git.samba.org / rusty / samba.git / blobdiff