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-rw-r--r--source/smbd/oplock_irix.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/source/smbd/oplock_irix.c b/source/smbd/oplock_irix.c
deleted file mode 100644
index ffcf3d0af4d..00000000000
--- a/source/smbd/oplock_irix.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
- IRIX kernel oplock processing
- Copyright (C) Andrew Tridgell 1992-1998
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include "includes.h"
-
-#if HAVE_KERNEL_OPLOCKS_IRIX
-
-static int oplock_pipe_write = -1;
-static int oplock_pipe_read = -1;
-
-/****************************************************************************
- Test to see if IRIX kernel oplocks work.
-****************************************************************************/
-
-static BOOL irix_oplocks_available(void)
-{
- int fd;
- int pfd[2];
- pstring tmpname;
-
- oplock_set_capability(True, False);
-
- slprintf(tmpname,sizeof(tmpname)-1, "%s/koplock.%d", lp_lockdir(), (int)sys_getpid());
-
- if(pipe(pfd) != 0) {
- DEBUG(0,("check_kernel_oplocks: Unable to create pipe. Error was %s\n",
- strerror(errno) ));
- return False;
- }
-
- if((fd = sys_open(tmpname, O_RDWR|O_CREAT|O_EXCL|O_TRUNC, 0600)) < 0) {
- DEBUG(0,("check_kernel_oplocks: Unable to open temp test file %s. Error was %s\n",
- tmpname, strerror(errno) ));
- unlink( tmpname );
- close(pfd[0]);
- close(pfd[1]);
- return False;
- }
-
- unlink(tmpname);
-
- 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]);
- close(pfd[1]);
- close(fd);
- return False;
- }
-
- 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]);
- close(pfd[1]);
- close(fd);
- return False;
- }
-
- close(pfd[0]);
- close(pfd[1]);
- close(fd);
-
- 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;
- 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(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;
- }
-
- /*
- * 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;
- }
-
- 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 ));
-
- /*
- * 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;
-
- 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 (sys_fcntl_long(fsp->fd, F_OPLKREG, oplock_pipe_write) == -1) {
- if(errno != EAGAIN) {
- 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,("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,("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 = 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, fsp->file_id, state );
- }
-
- /*
- * Remove the kernel oplock on this file.
- */
- if(sys_fcntl_long(fsp->fd, F_OPLKACK, OP_REVOKE) < 0) {
- if( DEBUGLVL( 0 )) {
- 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, fsp->file_id, strerror(errno) );
- }
- }
-}
-
-/****************************************************************************
- 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, unsigned long *file_id)
-{
- /* Ensure that the msg length is correct. */
- if(msg_len != KERNEL_OPLOCK_BREAK_MSG_LEN) {
- DEBUG(0,("incorrect length for KERNEL_OPLOCK_BREAK_CMD (was %d, should be %d).\n",
- 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 *)file_id, msg_start+KERNEL_OPLOCK_BREAK_FILEID_OFFSET, sizeof(*file_id));
-
- 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.
-****************************************************************************/
-
-static BOOL irix_oplock_msg_waiting(fd_set *fds)
-{
- if (oplock_pipe_read == -1)
- return False;
-
- return FD_ISSET(oplock_pipe_read,fds);
-}
-
-/****************************************************************************
- 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(pipe(pfd) != 0) {
- DEBUG(0,("setup_kernel_oplock_pipe: Unable to create pipe. Error was %s\n",
- strerror(errno) ));
- return False;
- }
-
- oplock_pipe_read = pfd[0];
- oplock_pipe_write = pfd[1];
-
- koplocks.receive_message = irix_oplock_receive_message;
- koplocks.set_oplock = irix_set_kernel_oplock;
- koplocks.release_oplock = irix_release_kernel_oplock;
- koplocks.parse_message = irix_kernel_oplock_parse;
- koplocks.msg_waiting = irix_oplock_msg_waiting;
- koplocks.notification_fd = oplock_pipe_read;
-
- return &koplocks;
-}
-#else
- void oplock_irix_dummy(void) {}
-#endif /* HAVE_KERNEL_OPLOCKS_IRIX */