First implementation of ChangeNotify - this version only checks

for changes in the directory modify timestamps. A better version
will look at the requested client flags, and create a hash that
represents the current state of the directory, and check against
this instead.
debug.c: Added lp_timestamp_logs() function.
loadparm.c: Added "change notify timeout" in seconds (default 60)
- this is the scan rate for a directory.
            Added ""timestamp logs" boolean - default True. Turns
off log timestamps (so I can read them :-).
nttrans.c: ChangeNotify implementation.
server.c: ChangeNotify implementation.
shmem_sysv.c: Added exits on shmem errors (without them smbd can
              core dump if some calls fail).
smb.h: Added ChangeNotify flags for future use.
util.c: Tidied up typedef.
Jeremy.
(This used to be commit a0748c3f53974483680ebe2ea4f556ece8d7fa43)

2 files changed, 18 insertions, 2 deletions

diff --git a/source3/include/proto.h b/source3/include/proto.h
index 10f01c1b9d..d3dcd70c16 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -1024,6 +1024,7 @@ BOOL lp_strip_dot(void);
 BOOL lp_encrypted_passwords(void);
 BOOL lp_update_encrypted(void);
 BOOL lp_syslog_only(void);
+BOOL lp_timestamp_logs(void);
 BOOL lp_browse_list(void);
 BOOL lp_unix_realname(void);
 BOOL lp_nis_home_map(void);
@@ -1058,6 +1059,7 @@ int lp_announce_as(void);
 int lp_lm_announce(void);
 int lp_lm_interval(void);
 int lp_machine_password_timeout(void);
+int lp_change_notify_timeout(void);
 int lp_ldap_port(void);
 char *lp_preexec(int );
 char *lp_postexec(int );
@@ -1603,6 +1605,9 @@ char *get_nt_error_msg(uint32 nt_code);
 int reply_ntcreate_and_X(char *inbuf,char *outbuf,int length,int bufsize);
 int reply_ntcancel(char *inbuf,char *outbuf,int length,int bufsize);
 int reply_nttranss(char *inbuf,char *outbuf,int length,int bufsize);
+void remove_pending_change_notify_requests_by_fid(int fnum);
+void remove_pending_change_notify_requests_by_mid(int mid);
+void process_pending_change_notify_queue(time_t t);
 int reply_nttrans(char *inbuf,char *outbuf,int length,int bufsize);
 
 /*The following definitions come from  params.c  */
diff --git a/source3/include/smb.h b/source3/include/smb.h
index 60e214d73e..b33db0ce66 100644
--- a/source3/include/smb.h
+++ b/source3/include/smb.h
@@ -190,7 +190,7 @@ implemented */
 #define STYPE_IPC       3	/* Interprocess communication (IPC) */
 #define STYPE_HIDDEN    0x80000000 /* share is a hidden one (ends with $) */
 
-/* SMB X/Open error codes for the ERRdos error class */
+/* SMB X/Open error codes for the ERRDOS error class */
 #define ERRbadfunc 1 /* Invalid function (or system call) */
 #define ERRbadfile 2 /* File not found (pathname error) */
 #define ERRbadpath 3 /* Directory not found */
@@ -1076,7 +1076,7 @@ struct parm_struct
 #define smb_nt_DataOffset (smb_vwv0 + 31)
 #define smb_nt_SetupCount (smb_vwv0 + 35)
 #define smb_nt_Function (smb_vwv0 + 36)
-#define smb_nt_SetupStart (smb_vwv0 + 39)
+#define smb_nt_SetupStart (smb_vwv0 + 38)
 
 /* these are for the NT trans secondary request. */
 #define smb_nts_TotalParameterCount (smb_vwv0 + 3)
@@ -1195,6 +1195,17 @@ struct parm_struct
 #define FILE_UNICODE_ON_DISK 0x4
 #define FILE_PERISITANT_ACLS 0x8
 
+/* ChangeNotify flags. */
+#define FILE_NOTIFY_CHANGE_FILE_NAME   0x001
+#define FILE_NOTIFY_CHANGE_DIR_NAME    0x002
+#define FILE_NOTIFY_CHANGE_ATTRIBUTES  0x004
+#define FILE_NOTIFY_CHANGE_SIZE        0x008
+#define FILE_NOTIFY_CHANGE_LAST_WRITE  0x010
+#define FILE_NOTIFY_CHANGE_LAST_ACCESS 0x020
+#define FILE_NOTIFY_CHANGE_CREATION    0x040
+#define FILE_NOTIFY_CHANGE_EA          0x080
+#define FILE_NOTIFY_CHANGE_SECURITY    0x100
+
 /* where to find the base of the SMB packet proper */
 #define smb_base(buf) (((char *)(buf))+4)