/*
- Unix SMB/Netbios implementation.
- Version 2.x
+ Unix SMB/CIFS implementation.
IRIX kernel oplock processing
Copyright (C) Andrew Tridgell 1992-1998
static int oplock_pipe_read = -1;
/****************************************************************************
-test to see if IRIX kernel oplocks work
+ Test to see if IRIX kernel oplocks work.
****************************************************************************/
+
static BOOL irix_oplocks_available(void)
{
int fd;
unlink(tmpname);
- if(fcntl(fd, F_OPLKREG, pfd[1]) == -1) {
+ if(sys_fcntl_long(fd, F_OPLKREG, pfd[1]) == -1) {
DEBUG(0,("check_kernel_oplocks: Kernel oplocks are not available on this machine. \
Disabling kernel oplock support.\n" ));
close(pfd[0]);
return False;
}
- if(fcntl(fd, F_OPLKACK, OP_REVOKE) < 0 ) {
+ if(sys_fcntl_long(fd, F_OPLKACK, OP_REVOKE) < 0 ) {
DEBUG(0,("check_kernel_oplocks: Error when removing kernel oplock. Error was %s. \
Disabling kernel oplock support.\n", strerror(errno) ));
close(pfd[0]);
return True;
}
-
-
/****************************************************************************
* Deal with the IRIX kernel <--> smbd
* oplock break protocol.
****************************************************************************/
+
static BOOL irix_oplock_receive_message(fd_set *fds, char *buffer, int buffer_len)
{
extern int smb_read_error;
- oplock_stat_t os;
- SMB_DEV_T dev;
- SMB_INO_T inode;
- char dummy;
-
- /*
- * Read one byte of zero to clear the
- * kernel break notify message.
- */
-
- if(read(oplock_pipe_read, &dummy, 1) != 1) {
- DEBUG(0,("receive_local_message: read of kernel notification failed. \
+ oplock_stat_t os;
+ char dummy;
+ files_struct *fsp;
+
+ /*
+ * Read one byte of zero to clear the
+ * kernel break notify message.
+ */
+
+ if(read(oplock_pipe_read, &dummy, 1) != 1) {
+ DEBUG(0,("irix_oplock_receive_message: read of kernel notification failed. \
Error was %s.\n", strerror(errno) ));
- smb_read_error = READ_ERROR;
- return False;
- }
-
- /*
- * Do a query to get the
- * device and inode of the file that has the break
- * request outstanding.
- */
-
- if(fcntl(oplock_pipe_read, F_OPLKSTAT, &os) < 0) {
- DEBUG(0,("receive_local_message: fcntl of kernel notification failed. \
+ smb_read_error = READ_ERROR;
+ return False;
+ }
+
+ /*
+ * Do a query to get the
+ * device and inode of the file that has the break
+ * request outstanding.
+ */
+
+ if(sys_fcntl_ptr(oplock_pipe_read, F_OPLKSTAT, &os) < 0) {
+ DEBUG(0,("irix_oplock_receive_message: fcntl of kernel notification failed. \
Error was %s.\n", strerror(errno) ));
- if(errno == EAGAIN) {
- /*
- * Duplicate kernel break message - ignore.
- */
- memset(buffer, '\0', KERNEL_OPLOCK_BREAK_MSG_LEN);
- return True;
- }
- smb_read_error = READ_ERROR;
- return False;
- }
-
- dev = (SMB_DEV_T)os.os_dev;
- inode = (SMB_INO_T)os.os_ino;
-
- DEBUG(5,("receive_local_message: kernel oplock break request received for \
-dev = %x, inode = %.0f\n", (unsigned int)dev, (double)inode ));
-
- /*
- * Create a kernel oplock break message.
- */
-
- /* Setup the message header */
- SIVAL(buffer,OPBRK_CMD_LEN_OFFSET,KERNEL_OPLOCK_BREAK_MSG_LEN);
- SSVAL(buffer,OPBRK_CMD_PORT_OFFSET,0);
-
- buffer += OPBRK_CMD_HEADER_LEN;
+ if(errno == EAGAIN) {
+ /*
+ * Duplicate kernel break message - ignore.
+ */
+ memset(buffer, '\0', KERNEL_OPLOCK_BREAK_MSG_LEN);
+ return True;
+ }
+ smb_read_error = READ_ERROR;
+ return False;
+ }
+
+ /*
+ * We only have device and inode info here - we have to guess that this
+ * is the first fsp open with this dev,ino pair.
+ */
+
+ if ((fsp = file_find_di_first((SMB_DEV_T)os.os_dev, (SMB_INO_T)os.os_ino)) == NULL) {
+ DEBUG(0,("irix_oplock_receive_message: unable to find open file with dev = %x, inode = %.0f\n",
+ (unsigned int)os.os_dev, (double)os.os_ino ));
+ return False;
+ }
- SSVAL(buffer,OPBRK_MESSAGE_CMD_OFFSET,KERNEL_OPLOCK_BREAK_CMD);
+ DEBUG(5,("irix_oplock_receive_message: kernel oplock break request received for \
+dev = %x, inode = %.0f\n, file_id = %ul", (unsigned int)fsp->dev, (double)fsp->inode, fsp->file_id ));
- memcpy(buffer + KERNEL_OPLOCK_BREAK_DEV_OFFSET, (char *)&dev, sizeof(dev));
- memcpy(buffer + KERNEL_OPLOCK_BREAK_INODE_OFFSET, (char *)&inode, sizeof(inode));
+ /*
+ * Create a kernel oplock break message.
+ */
+
+ /* Setup the message header */
+ SIVAL(buffer,OPBRK_CMD_LEN_OFFSET,KERNEL_OPLOCK_BREAK_MSG_LEN);
+ SSVAL(buffer,OPBRK_CMD_PORT_OFFSET,0);
+
+ buffer += OPBRK_CMD_HEADER_LEN;
- return True;
+ SSVAL(buffer,OPBRK_MESSAGE_CMD_OFFSET,KERNEL_OPLOCK_BREAK_CMD);
+
+ memcpy(buffer + KERNEL_OPLOCK_BREAK_DEV_OFFSET, (char *)&fsp->dev, sizeof(fsp->dev));
+ memcpy(buffer + KERNEL_OPLOCK_BREAK_INODE_OFFSET, (char *)&fsp->inode, sizeof(fsp->inode));
+ memcpy(buffer + KERNEL_OPLOCK_BREAK_FILEID_OFFSET, (char *)&fsp->file_id, sizeof(fsp->file_id));
+
+ return True;
}
-
/****************************************************************************
Attempt to set an kernel oplock on a file.
****************************************************************************/
+
static BOOL irix_set_kernel_oplock(files_struct *fsp, int oplock_type)
{
- if (fcntl(fsp->fd, F_OPLKREG, oplock_pipe_write) == -1) {
+ if (sys_fcntl_long(fsp->fd, F_OPLKREG, oplock_pipe_write) == -1) {
if(errno != EAGAIN) {
- DEBUG(0,("set_file_oplock: Unable to get kernel oplock on file %s, dev = %x, \
-inode = %.0f. Error was %s\n",
- fsp->fsp_name, (unsigned int)fsp->dev, (double)fsp->inode,
+ DEBUG(0,("irix_set_kernel_oplock: Unable to get kernel oplock on file %s, dev = %x, \
+inode = %.0f, file_id = %ul. Error was %s\n",
+ fsp->fsp_name, (unsigned int)fsp->dev, (double)fsp->inode, fsp->file_id,
strerror(errno) ));
} else {
- DEBUG(5,("set_file_oplock: Refused oplock on file %s, fd = %d, dev = %x, \
-inode = %.0f. Another process had the file open.\n",
- fsp->fsp_name, fsp->fd, (unsigned int)fsp->dev, (double)fsp->inode ));
+ DEBUG(5,("irix_set_kernel_oplock: Refused oplock on file %s, fd = %d, dev = %x, \
+inode = %.0f, file_id = %ul. Another process had the file open.\n",
+ fsp->fsp_name, fsp->fd, (unsigned int)fsp->dev, (double)fsp->inode, fsp->file_id ));
}
return False;
}
- DEBUG(10,("set_file_oplock: got kernel oplock on file %s, dev = %x, inode = %.0f\n",
- fsp->fsp_name, (unsigned int)fsp->dev, (double)fsp->inode));
+ DEBUG(10,("irix_set_kernel_oplock: got kernel oplock on file %s, dev = %x, inode = %.0f, file_id = %ul\n",
+ fsp->fsp_name, (unsigned int)fsp->dev, (double)fsp->inode, fsp->file_id));
return True;
}
-
/****************************************************************************
Release a kernel oplock on a file.
****************************************************************************/
+
static void irix_release_kernel_oplock(files_struct *fsp)
{
if (DEBUGLVL(10)) {
* Check and print out the current kernel
* oplock state of this file.
*/
- int state = fcntl(fsp->fd, F_OPLKACK, -1);
- dbgtext("release_kernel_oplock: file %s, dev = %x, inode = %.0f has kernel \
+ int state = sys_fcntl_long(fsp->fd, F_OPLKACK, -1);
+ dbgtext("irix_release_kernel_oplock: file %s, dev = %x, inode = %.0f file_id = %ul, has kernel \
oplock state of %x.\n", fsp->fsp_name, (unsigned int)fsp->dev,
- (double)fsp->inode, state );
+ (double)fsp->inode, fsp->file_id, state );
}
/*
* Remove the kernel oplock on this file.
*/
- if(fcntl(fsp->fd, F_OPLKACK, OP_REVOKE) < 0) {
+ if(sys_fcntl_long(fsp->fd, F_OPLKACK, OP_REVOKE) < 0) {
if( DEBUGLVL( 0 )) {
- dbgtext("release_kernel_oplock: Error when removing kernel oplock on file " );
- dbgtext("%s, dev = %x, inode = %.0f. Error was %s\n",
+ dbgtext("irix_release_kernel_oplock: Error when removing kernel oplock on file " );
+ dbgtext("%s, dev = %x, inode = %.0f, file_id = %ul. Error was %s\n",
fsp->fsp_name, (unsigned int)fsp->dev,
- (double)fsp->inode, strerror(errno) );
+ (double)fsp->inode, fsp->file_id, strerror(errno) );
}
}
}
-
/****************************************************************************
-parse a kernel oplock message
+ Parse a kernel oplock message.
****************************************************************************/
-static BOOL irix_kernel_oplock_parse(char *msg_start, int msg_len, SMB_INO_T *inode, SMB_DEV_T *dev)
+
+static BOOL irix_kernel_oplock_parse(char *msg_start, int msg_len,
+ SMB_INO_T *inode, SMB_DEV_T *dev, unsigned long *file_id)
{
/* Ensure that the msg length is correct. */
if(msg_len != KERNEL_OPLOCK_BREAK_MSG_LEN) {
return False;
}
- memcpy((char *)inode, msg_start+KERNEL_OPLOCK_BREAK_INODE_OFFSET, sizeof(*inode));
- memcpy((char *)dev, msg_start+KERNEL_OPLOCK_BREAK_DEV_OFFSET, sizeof(*dev));
+ memcpy((char *)inode, msg_start+KERNEL_OPLOCK_BREAK_INODE_OFFSET, sizeof(*inode));
+ memcpy((char *)dev, msg_start+KERNEL_OPLOCK_BREAK_DEV_OFFSET, sizeof(*dev));
+ memcpy((char *)file_id, msg_start+KERNEL_OPLOCK_BREAK_FILEID_OFFSET, sizeof(*file_id));
- DEBUG(5,("kernel oplock break request for file dev = %x, inode = %.0f\n",
- (unsigned int)*dev, (double)*inode));
+ DEBUG(5,("kernel oplock break request for file dev = %x, inode = %.0f, file_id = %ul\n",
+ (unsigned int)*dev, (double)*inode, *file_id));
return True;
}
-
/****************************************************************************
-set *maxfd to include oplock read pipe
+ Set *maxfd to include oplock read pipe.
****************************************************************************/
+
static BOOL irix_oplock_msg_waiting(fd_set *fds)
{
- if (oplock_pipe_read == -1) return False;
+ if (oplock_pipe_read == -1)
+ return False;
return FD_ISSET(oplock_pipe_read,fds);
}
-
/****************************************************************************
-setup kernel oplocks
+ Setup kernel oplocks.
****************************************************************************/
+
struct kernel_oplocks *irix_init_kernel_oplocks(void)
{
int pfd[2];
static struct kernel_oplocks koplocks;
- if (!irix_oplocks_available()) return NULL;
+ if (!irix_oplocks_available())
+ return NULL;
if(pipe(pfd) != 0) {
DEBUG(0,("setup_kernel_oplock_pipe: Unable to create pipe. Error was %s\n",
return &koplocks;
}
-
-
-
#else
void oplock_irix_dummy(void) {}
#endif /* HAVE_KERNEL_OPLOCKS_IRIX */
git.samba.org / jra / samba / .git / blobdiff