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-rw-r--r--source3/modules/gpfs.c231
-rw-r--r--source3/modules/vfs_default.c11
-rw-r--r--source3/modules/vfs_gpfs.c68
3 files changed, 310 insertions, 0 deletions
diff --git a/source3/modules/gpfs.c b/source3/modules/gpfs.c
new file mode 100644
index 0000000000..f63a85294b
--- /dev/null
+++ b/source3/modules/gpfs.c
@@ -0,0 +1,231 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * Provide a connection to GPFS specific features
+ * Copyright (C) Volker Lendecke 2005
+ *
+ * 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"
+
+#ifdef HAVE_GPFS
+
+#include "gpfs_gpl.h"
+
+static void *libgpfs_handle = NULL;
+
+static int (*gpfs_set_share_fn)(int fd, unsigned int allow, unsigned int deny);
+static int (*gpfs_set_lease_fn)(int fd, unsigned int leaseType);
+static int (*gpfs_getacl_fn)(char *pathname, int flags, void *acl);
+static int (*gpfs_putacl_fn)(char *pathname, int flags, void *acl);
+
+
+BOOL set_gpfs_sharemode(files_struct *fsp, uint32 access_mask,
+ uint32 share_access)
+{
+ unsigned int allow = GPFS_SHARE_NONE;
+ unsigned int deny = GPFS_DENY_NONE;
+ int result;
+
+ if (gpfs_set_share_fn == NULL) {
+ return False;
+ }
+
+ if ((fsp == NULL) || (fsp->fh == NULL) || (fsp->fh->fd < 0)) {
+ /* No real file, don't disturb */
+ return True;
+ }
+
+ allow |= (access_mask & (FILE_WRITE_DATA|FILE_APPEND_DATA|
+ DELETE_ACCESS)) ? GPFS_SHARE_WRITE : 0;
+ allow |= (access_mask & (FILE_READ_DATA|FILE_EXECUTE)) ?
+ GPFS_SHARE_READ : 0;
+ deny |= (share_access & (FILE_SHARE_WRITE|FILE_SHARE_DELETE)) ?
+ 0 : GPFS_DENY_WRITE;
+ deny |= (share_access & (FILE_SHARE_READ)) ?
+ 0 : GPFS_DENY_READ;
+
+ DEBUG(10, ("am=%x, allow=%d, sa=%x, deny=%d\n",
+ access_mask, allow, share_access, deny));
+
+ result = gpfs_set_share_fn(fsp->fh->fd, allow, deny);
+ if (result != 0) {
+ if (errno == ENOSYS) {
+ DEBUG(5, ("VFS module vfs_gpfs loaded, but no gpfs "
+ "support has been compiled into Samba. Allowing access\n"));
+ return True;
+ } else {
+ DEBUG(10, ("gpfs_set_share failed: %s\n",
+ strerror(errno)));
+ }
+ }
+
+ return (result == 0);
+}
+
+int set_gpfs_lease(int fd, int leasetype)
+{
+ int gpfs_type = GPFS_LEASE_NONE;
+
+ if (gpfs_set_lease_fn == NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (leasetype == F_RDLCK) {
+ gpfs_type = GPFS_LEASE_READ;
+ }
+ if (leasetype == F_WRLCK) {
+ gpfs_type = GPFS_LEASE_WRITE;
+ }
+ return gpfs_set_lease_fn(fd, gpfs_type);
+}
+
+int smbd_gpfs_getacl(char *pathname, int flags, void *acl)
+{
+ if (gpfs_getacl_fn == NULL) {
+ errno = ENOSYS;
+ return -1;
+ }
+
+ return gpfs_getacl_fn(pathname, flags, acl);
+}
+
+int smbd_gpfs_putacl(char *pathname, int flags, void *acl)
+{
+ if (gpfs_putacl_fn == NULL) {
+ errno = ENOSYS;
+ return -1;
+ }
+
+ return gpfs_putacl_fn(pathname, flags, acl);
+}
+
+void init_gpfs(void)
+{
+ if (libgpfs_handle != NULL) {
+ return;
+ }
+
+ libgpfs_handle = sys_dlopen("libgpfs_gpl.so", RTLD_LAZY);
+
+ if (libgpfs_handle == NULL) {
+ DEBUG(10, ("sys_dlopen for libgpfs_gpl failed: %s\n",
+ strerror(errno)));
+ return;
+ }
+
+ DEBUG(10, ("libgpfs_gpl.so loaded\n"));
+
+ gpfs_set_share_fn = sys_dlsym(libgpfs_handle, "gpfs_set_share");
+ if (gpfs_set_share_fn == NULL) {
+ DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
+ "'gpfs_set_share'\n"));
+ sys_dlclose(libgpfs_handle);
+
+ /* leave libgpfs_handle != NULL around, no point
+ in trying twice */
+ gpfs_set_share_fn = NULL;
+ gpfs_set_lease_fn = NULL;
+ gpfs_getacl_fn = NULL;
+ gpfs_putacl_fn = NULL;
+ return;
+ }
+
+ gpfs_set_lease_fn = sys_dlsym(libgpfs_handle, "gpfs_set_lease");
+ if (gpfs_set_lease_fn == NULL) {
+ DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
+ "'gpfs_set_lease'\n"));
+ sys_dlclose(libgpfs_handle);
+
+ /* leave libgpfs_handle != NULL around, no point
+ in trying twice */
+ gpfs_set_share_fn = NULL;
+ gpfs_set_lease_fn = NULL;
+ gpfs_getacl_fn = NULL;
+ gpfs_putacl_fn = NULL;
+ return;
+ }
+
+ gpfs_getacl_fn = sys_dlsym(libgpfs_handle, "gpfs_getacl");
+ if (gpfs_getacl_fn == NULL) {
+ DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
+ "'gpfs_getacl'\n"));
+ sys_dlclose(libgpfs_handle);
+
+ /* leave libgpfs_handle != NULL around, no point
+ in trying twice */
+ gpfs_set_share_fn = NULL;
+ gpfs_set_lease_fn = NULL;
+ gpfs_getacl_fn = NULL;
+ gpfs_putacl_fn = NULL;
+ return;
+ }
+
+ gpfs_putacl_fn = sys_dlsym(libgpfs_handle, "gpfs_putacl");
+ if (gpfs_putacl_fn == NULL) {
+ DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
+ "'gpfs_putacl'\n"));
+ sys_dlclose(libgpfs_handle);
+
+ /* leave libgpfs_handle != NULL around, no point
+ in trying twice */
+ gpfs_set_share_fn = NULL;
+ gpfs_set_lease_fn = NULL;
+ gpfs_getacl_fn = NULL;
+ gpfs_putacl_fn = NULL;
+ return;
+ }
+
+}
+
+#else
+
+int set_gpfs_lease(int snum, int leasetype)
+{
+ DEBUG(0, ("'VFS module smbgpfs loaded, without gpfs support compiled\n"));
+
+ /* We need to indicate that no GPFS is around by returning ENOSYS, so
+ * that the normal linux kernel oplock code is called. */
+ errno = ENOSYS;
+ return -1;
+}
+
+BOOL set_gpfs_sharemode(files_struct *fsp, uint32 access_mask,
+ uint32 share_access)
+{
+ DEBUG(0, ("VFS module - smbgpfs.so loaded, without gpfs support compiled\n"));
+ /* Don't disturb but complain */
+ return True;
+}
+
+int smbd_gpfs_getacl(char *pathname, int flags, void *acl)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+int smbd_gpfs_putacl(char *pathname, int flags, void *acl)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+void init_gpfs(void)
+{
+ return;
+}
+
+#endif /* HAVE_GPFS */
diff --git a/source3/modules/vfs_default.c b/source3/modules/vfs_default.c
index ae565ae980..486a76ac88 100644
--- a/source3/modules/vfs_default.c
+++ b/source3/modules/vfs_default.c
@@ -764,6 +764,15 @@ static BOOL vfswrap_lock(vfs_handle_struct *handle, files_struct *fsp, int fd, i
return result;
}
+static int vfswrap_kernel_flock(vfs_handle_struct *handle, files_struct *fsp, int fd,
+ uint32 share_mode)
+{
+ START_PROFILE(syscall_kernel_flock);
+ kernel_flock(fd, share_mode);
+ END_PROFILE(syscall_kernel_flock);
+ return 0;
+}
+
static BOOL vfswrap_getlock(vfs_handle_struct *handle, files_struct *fsp, int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
{
BOOL result;
@@ -1189,6 +1198,8 @@ static vfs_op_tuple vfs_default_ops[] = {
SMB_VFS_LAYER_OPAQUE},
{SMB_VFS_OP(vfswrap_lock), SMB_VFS_OP_LOCK,
SMB_VFS_LAYER_OPAQUE},
+ {SMB_VFS_OP(vfswrap_kernel_flock), SMB_VFS_OP_KERNEL_FLOCK,
+ SMB_VFS_LAYER_OPAQUE},
{SMB_VFS_OP(vfswrap_getlock), SMB_VFS_OP_GETLOCK,
SMB_VFS_LAYER_OPAQUE},
{SMB_VFS_OP(vfswrap_symlink), SMB_VFS_OP_SYMLINK,
diff --git a/source3/modules/vfs_gpfs.c b/source3/modules/vfs_gpfs.c
new file mode 100644
index 0000000000..c5658ceb51
--- /dev/null
+++ b/source3/modules/vfs_gpfs.c
@@ -0,0 +1,68 @@
+/*
+ Unix SMB/CIFS implementation.
+ Wrap gpfs calls in vfs functions.
+
+ Copyright (C) Christian Ambach <cambach1@de.ibm.com> 2006
+
+ Major code contributions by Chetan Shringarpure <chetan.sh@in.ibm.com>
+
+ 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"
+
+
+static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
+ int fd, uint32 share_mode)
+{
+
+ START_PROFILE(syscall_kernel_flock);
+
+ kernel_flock(fsp->fh->fd, share_mode);
+
+ if (!set_gpfs_sharemode(fsp, fsp->access_mask, fsp->share_access)) {
+
+ return -1;
+
+ }
+
+ END_PROFILE(syscall_kernel_flock);
+
+ return 0;
+}
+
+
+static vfs_op_tuple gpfs_op_tuples[] = {
+
+ {SMB_VFS_OP(vfs_gpfs_kernel_flock),
+ SMB_VFS_OP_KERNEL_FLOCK,
+ SMB_VFS_LAYER_OPAQUE},
+
+ {SMB_VFS_OP(NULL),
+ SMB_VFS_OP_NOOP,
+ SMB_VFS_LAYER_NOOP}
+
+};
+
+
+NTSTATUS vfs_gpfs_init(void)
+{
+ init_gpfs();
+
+ return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
+ gpfs_op_tuples);
+}
generated by cgit (git 2.34.1) at 2024-08-12 10:00:37 +0000