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-rw-r--r--source/include/proto.h2
-rw-r--r--source/include/smb.h12
-rw-r--r--source/lib/util.c4
-rw-r--r--source/smbd/server.c74
-rw-r--r--source/smbd/trans2.c2
5 files changed, 57 insertions, 37 deletions
diff --git a/source/include/proto.h b/source/include/proto.h
index 51433333c50..35d43afe0ca 100644
--- a/source/include/proto.h
+++ b/source/include/proto.h
@@ -722,7 +722,7 @@ int find_service(char *service);
int cached_error_packet(char *inbuf,char *outbuf,int fnum,int line);
int unix_error_packet(char *inbuf,char *outbuf,int def_class,uint32 def_code,int line);
int error_packet(char *inbuf,char *outbuf,int error_class,uint32 error_code,int line);
-BOOL oplock_break(uint32 dev, uint32 inode);
+BOOL oplock_break(uint32 dev, uint32 inode, struct timeval *tval);
BOOL request_oplock_break(min_share_mode_entry *share_entry,
uint32 dev, uint32 inode);
BOOL snum_used(int snum);
diff --git a/source/include/smb.h b/source/include/smb.h
index 509c1e1cf15..66da2099c77 100644
--- a/source/include/smb.h
+++ b/source/include/smb.h
@@ -1049,17 +1049,19 @@ extern int unix_ERR_code;
*
* Form of this is :
*
- * 0 2 6 10
- * +----+--------+--------+--------+
- * | cmd| pid | dev | inode |
- * +----+--------+--------+--------+
+ * 0 2 6 10 14 18 22
+ * +----+--------+--------+--------+-------+--------+
+ * | cmd| pid | dev | inode | sec | usec |
+ * +----+--------+--------+--------+-------+--------+
*/
#define OPLOCK_BREAK_CMD 0x1
#define OPLOCK_BREAK_PID_OFFSET 2
#define OPLOCK_BREAK_DEV_OFFSET 6
#define OPLOCK_BREAK_INODE_OFFSET 10
-#define OPLOCK_BREAK_MSG_LEN 14
+#define OPLOCK_BREAK_SEC_OFFSET 14
+#define OPLOCK_BREAK_USEC_OFFSET 18
+#define OPLOCK_BREAK_MSG_LEN 22
#define CMD_REPLY 0x8000
diff --git a/source/lib/util.c b/source/lib/util.c
index e65e708139c..3317efb8041 100644
--- a/source/lib/util.c
+++ b/source/lib/util.c
@@ -2860,7 +2860,7 @@ BOOL mask_match(char *str, char *regexp, int case_sig,BOOL trans2)
if (strequal(p1,"*")) return(True);
- DEBUG(5,("mask_match str=<%s> regexp=<%s>, case_sig = %d\n", p2, p1, case_sig));
+ DEBUG(8,("mask_match str=<%s> regexp=<%s>, case_sig = %d\n", p2, p1, case_sig));
if (trans2) {
fstrcpy(ebase,p1);
@@ -2888,7 +2888,7 @@ BOOL mask_match(char *str, char *regexp, int case_sig,BOOL trans2)
matched = do_match(sbase,ebase,case_sig) &&
(trans2 || do_match(sext,eext,case_sig));
- DEBUG(5,("mask_match returning %d\n", matched));
+ DEBUG(8,("mask_match returning %d\n", matched));
return matched;
}
diff --git a/source/smbd/server.c b/source/smbd/server.c
index 19cc5b9abb8..d7620a5804e 100644
--- a/source/smbd/server.c
+++ b/source/smbd/server.c
@@ -1404,7 +1404,8 @@ static int access_table(int new_deny,int old_deny,int old_mode,
if (new_deny == DENY_ALL || old_deny == DENY_ALL) return(AFAIL);
if (new_deny == DENY_DOS || old_deny == DENY_DOS) {
- if (old_deny == new_deny && share_pid == getpid())
+ int pid = getpid();
+ if (old_deny == new_deny && share_pid == pid)
return(AALL);
if (old_mode == 0) return(AREAD);
@@ -1487,16 +1488,12 @@ BOOL check_file_sharing(int cnum,char *fname)
{
min_share_mode_entry *share_entry = &old_shares[i];
- /* someone else has a share lock on it, check to see
- if we can too */
- if ((share_entry->share_mode != DENY_DOS) || (share_entry->pid != pid))
- goto free_and_exit;
-
#ifdef USE_OPLOCKS
/*
- * The share modes would give us access. Check if someone
- * has an oplock on this file. If so we must break it before
- * continuing.
+ * Break oplocks before checking share modes. See comment in
+ * open_file_shared for details.
+ * Check if someone has an oplock on this file. If so we must
+ * break it before continuing.
*/
if(share_entry->op_type & BATCH_OPLOCK)
{
@@ -1518,6 +1515,12 @@ dev = %x, inode = %x\n", old_shares[i].op_type, fname, dev, inode));
break;
}
#endif /* USE_OPLOCKS */
+
+ /* someone else has a share lock on it, check to see
+ if we can too */
+ if ((share_entry->share_mode != DENY_DOS) || (share_entry->pid != pid))
+ goto free_and_exit;
+
} /* end for */
if(broke_oplock)
@@ -1727,22 +1730,13 @@ void open_file_shared(int fnum,int cnum,char *fname,int share_mode,int ofun,
{
min_share_mode_entry *share_entry = &old_shares[i];
- /* someone else has a share lock on it, check to see
- if we can too */
- if(check_share_mode(share_entry, deny_mode, fname, fcbopen, &flags) == False)
- {
- free((char *)old_shares);
- unlock_share_entry(cnum, dev, inode, token);
- errno = EACCES;
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadshare;
- return;
- }
#ifdef USE_OPLOCKS
/*
- * The share modes would give us access. Check if someone
- * has an oplock on this file. If so we must break it before
- * continuing.
+ * By observation of NetBench, oplocks are broken *before* share
+ * modes are checked. This allows a file to be closed by the client
+ * if the share mode would deny access and the client has an oplock.
+ * Check if someone has an oplock on this file. If so we must break
+ * it before continuing.
*/
if(share_entry->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
{
@@ -1767,6 +1761,19 @@ dev = %x, inode = %x\n", old_shares[i].op_type, fname, dev, inode));
break;
}
#endif /* USE_OPLOCKS */
+
+ /* someone else has a share lock on it, check to see
+ if we can too */
+ if(check_share_mode(share_entry, deny_mode, fname, fcbopen, &flags) == False)
+ {
+ free((char *)old_shares);
+ unlock_share_entry(cnum, dev, inode, token);
+ errno = EACCES;
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+ return;
+ }
+
} /* end for */
if(broke_oplock)
@@ -2428,7 +2435,7 @@ static void process_smb(char *inbuf, char *outbuf)
static unsigned char buf[5] = {0x83, 0, 0, 1, 0x81};
DEBUG(1,("%s Connection denied from %s\n",
timestring(),client_addr()));
- send_smb(Client,buf);
+ send_smb(Client,(char *)buf);
exit_server("connection denied");
}
}
@@ -2535,8 +2542,12 @@ should be %d).\n", msg_len, OPLOCK_BREAK_MSG_LEN));
uint32 remotepid = IVAL(msg_start,OPLOCK_BREAK_PID_OFFSET);
uint32 dev = IVAL(msg_start,OPLOCK_BREAK_DEV_OFFSET);
uint32 inode = IVAL(msg_start, OPLOCK_BREAK_INODE_OFFSET);
+ struct timeval tval;
struct sockaddr_in toaddr;
+ tval.tv_sec = IVAL(msg_start, OPLOCK_BREAK_SEC_OFFSET);
+ tval.tv_usec = IVAL(msg_start, OPLOCK_BREAK_USEC_OFFSET);
+
DEBUG(5,("process_local_message: oplock break request from \
pid %d, port %d, dev = %x, inode = %x\n", remotepid, from_port, dev, inode));
@@ -2549,7 +2560,7 @@ pid %d, port %d, dev = %x, inode = %x\n", remotepid, from_port, dev, inode));
if(global_oplocks_open != 0)
{
- if(oplock_break(dev, inode) == False)
+ if(oplock_break(dev, inode, &tval) == False)
{
DEBUG(0,("process_local_message: oplock break failed - \
not returning udp message.\n"));
@@ -2595,7 +2606,7 @@ pid %d, port %d, for file dev = %x, inode = %x\n", remotepid,
/****************************************************************************
Process an oplock break directly.
****************************************************************************/
-BOOL oplock_break(uint32 dev, uint32 inode)
+BOOL oplock_break(uint32 dev, uint32 inode, struct timeval *tval)
{
extern int Client;
static char *inbuf = NULL;
@@ -2633,7 +2644,9 @@ global_oplocks_open = %d\n", dev, inode, global_oplocks_open));
if(OPEN_FNUM(fnum))
{
fsp = &Files[fnum];
- if((fsp->fd_ptr->dev == dev) && (fsp->fd_ptr->inode == inode))
+ if((fsp->fd_ptr->dev == dev) && (fsp->fd_ptr->inode == inode) &&
+ (fsp->open_time.tv_sec == tval->tv_sec) &&
+ (fsp->open_time.tv_usec == tval->tv_usec))
break;
}
}
@@ -2797,8 +2810,11 @@ BOOL request_oplock_break(min_share_mode_entry *share_entry,
should be %d\n", pid, share_entry->op_port, oplock_port));
return False;
}
+
+ DEBUG(5,("request_oplock_break: breaking our own oplock\n"));
+
/* Call oplock break direct. */
- return oplock_break(dev, inode);
+ return oplock_break(dev, inode, &share_entry->time);
}
/* We need to send a OPLOCK_BREAK_CMD message to the
@@ -2808,6 +2824,8 @@ should be %d\n", pid, share_entry->op_port, oplock_port));
SIVAL(op_break_msg,OPLOCK_BREAK_PID_OFFSET,pid);
SIVAL(op_break_msg,OPLOCK_BREAK_DEV_OFFSET,dev);
SIVAL(op_break_msg,OPLOCK_BREAK_INODE_OFFSET,inode);
+ SIVAL(op_break_msg,OPLOCK_BREAK_SEC_OFFSET,(uint32)share_entry->time.tv_sec);
+ SIVAL(op_break_msg,OPLOCK_BREAK_USEC_OFFSET,(uint32)share_entry->time.tv_usec);
/* set the address and port */
bzero((char *)&addr_out,sizeof(addr_out));
diff --git a/source/smbd/trans2.c b/source/smbd/trans2.c
index 8ab024ded28..56f153f12fb 100644
--- a/source/smbd/trans2.c
+++ b/source/smbd/trans2.c
@@ -319,7 +319,7 @@ static int get_lanman2_dir_entry(int cnum,char *path_mask,int dirtype,int info_l
reskey = TellDir(Connections[cnum].dirptr);
- DEBUG(6,("get_lanman2_dir_entry:readdir on dirptr 0x%x now at offset %d\n",
+ DEBUG(8,("get_lanman2_dir_entry:readdir on dirptr 0x%x now at offset %d\n",
Connections[cnum].dirptr,TellDir(Connections[cnum].dirptr)));
if (!dname)
generated by cgit (git 2.34.1) at 2024-11-17 04:19:01 +0000