/*
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>
and Gomati Mohanan <gomati.mohanan@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 3 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, see <http://www.gnu.org/licenses/>.
-
-
*/
#include "includes.h"
int leasetype)
{
int ret;
-
+
START_PROFILE(syscall_linux_setlease);
-
+
if ( linux_set_lease_sighandler(fsp->fh->fd) == -1)
return -1;
ret = set_gpfs_lease(fsp->fh->fd,leasetype);
-
+
if ( ret < 0 ) {
/* This must have come from GPFS not being available */
/* or some other error, hence call the default */
return ret;
}
+static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
+ const char *path,
+ const char *name,
+ TALLOC_CTX *mem_ctx,
+ char **found_name)
+{
+ int result;
+ char *full_path;
+ char real_pathname[PATH_MAX+1];
+ int buflen;
+
+ full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
+ if (full_path == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ buflen = sizeof(real_pathname) - 1;
+
+ result = smbd_gpfs_get_realfilename_path(full_path, real_pathname,
+ &buflen);
+
+ TALLOC_FREE(full_path);
+
+ if (result == -1) {
+ DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
+ strerror(errno)));
+ return -1;
+ }
+
+ /*
+ * GPFS does not necessarily null-terminate the returned path
+ * but instead returns the buffer length in buflen.
+ */
+
+ if (buflen < sizeof(real_pathname)) {
+ real_pathname[buflen] = '\0';
+ } else {
+ real_pathname[sizeof(real_pathname)-1] = '\0';
+ }
+
+ DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
+ path, name, real_pathname));
+
+ name = strrchr_m(real_pathname, '/');
+ if (name == NULL) {
+ errno = ENOENT;
+ return -1;
+ }
+
+ *found_name = talloc_strdup(mem_ctx, name+1);
+ if (*found_name == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+ return 0;
+}
static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
{
gace->aceType = aceprop->aceType;
gace->aceFlags = aceprop->aceFlags;
gace->aceMask = aceprop->aceMask;
-
+
/*
* GPFS can't distinguish between WRITE and APPEND on
* files, so one being set without the other is an
* error. Sorry for the many ()'s :-)
*/
-
+
if (!fsp->is_directory
&&
((((gace->aceMask & ACE4_MASK_WRITE) == 0)
fsp->fsp_name));
gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
}
-
+
gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
-
+
if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
{
switch(aceprop->who.special_id)
errno = EINVAL;
goto done;
}
-
+
DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
pacl->acl_len, pacl->acl_level, pacl->acl_version,
pacl->acl_nace));
}
SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
-
const char *path_p,
SMB_ACL_TYPE_T type)
{
for (i=0; i<pacl->count; i++) {
const struct smb_acl_entry *ace = &pacl->acl[i];
struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
-
+
DEBUG(10, ("Converting type %d perm %x\n",
(int)ace->a_type, (int)ace->a_perm));
}
int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
-
const char *name,
SMB_ACL_TYPE_T type,
SMB_ACL_T theacl)
}
int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
-
const char *path)
{
errno = ENOTSUP;
uint32_t posix_mask = 0x01;
uint32_t posix_bit;
uint32_t nfs4_bits;
-
+
for(i=0; i<3; i++) {
nfs4_bits = posix_nfs4map[i];
posix_bit = rwx & posix_mask;
-
+
if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
if (posix_bit)
aceMask |= nfs4_bits;
else
aceMask &= ~nfs4_bits;
} /* other ace types are unexpected */
-
+
posix_mask <<= 1;
}
-
+
return aceMask;
}
int i;
files_struct fake_fsp; /* TODO: rationalize parametrization */
SMB4ACE_T *smbace;
-
+
DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
-
+
result = gpfs_get_nfs4_acl(path, &pacl);
if (result)
return result;
-
+
if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
}
-
+
for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
uint32_t specid = ace->who.special_id;
-
+
if (ace->flags&SMB_ACE4_ID_SPECIAL &&
ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
specid <= SMB_ACE4_WHO_EVERYONE) {
-
+
uint32_t newMask;
-
+
if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
haveAllowEntry[specid] = True;
-
+
/* mode >> 6 for @owner, mode >> 3 for @group,
* mode >> 0 for @everyone */
newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
*/
for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
SMB_ACE4PROP_T ace;
-
+
if (haveAllowEntry[i]==True)
continue;
-
+
ZERO_STRUCT(ace);
ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
ace.flags |= SMB_ACE4_ID_SPECIAL;
ace.who.special_id = i;
-
+
if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
-
+
ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
-
+
/* don't add unnecessary aces */
if (!ace.aceMask)
continue;
-
+
/* we add it to the END - as windows expects allow aces */
smb_add_ace4(pacl, &ace);
DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
path, mode, i, ace.aceMask));
}
-
+
/* don't add complementary DENY ACEs here */
ZERO_STRUCT(fake_fsp);
fake_fsp.fsp_name = (char *)path; /* no file_new is needed here */
-
+
/* put the acl */
if (gpfsacl_process_smbacl(&fake_fsp, pacl) == False)
return -1;
{
SMB_STRUCT_STAT st;
int rc;
-
+
if (SMB_VFS_NEXT_STAT(handle, path, &st) != 0) {
return -1;
}
-
+
/* avoid chmod() if possible, to preserve acls */
if ((st.st_mode & ~S_IFMT) == mode) {
return 0;
{
SMB_STRUCT_STAT st;
int rc;
-
+
if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
return -1;
}
/* VFS operations structure */
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(vfs_gpfs_setlease),
SMB_VFS_OP_LINUX_SETLEASE,
SMB_VFS_LAYER_OPAQUE },
-
+
+ { SMB_VFS_OP(vfs_gpfs_get_real_filename),
+ SMB_VFS_OP_GET_REAL_FILENAME,
+ SMB_VFS_LAYER_OPAQUE },
+
{ SMB_VFS_OP(gpfsacl_fget_nt_acl),
SMB_VFS_OP_FGET_NT_ACL,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(gpfsacl_get_nt_acl),
SMB_VFS_OP_GET_NT_ACL,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(gpfsacl_fset_nt_acl),
SMB_VFS_OP_FSET_NT_ACL,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(gpfsacl_sys_acl_get_file),
SMB_VFS_OP_SYS_ACL_GET_FILE,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(gpfsacl_sys_acl_get_fd),
SMB_VFS_OP_SYS_ACL_GET_FD,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(gpfsacl_sys_acl_set_file),
SMB_VFS_OP_SYS_ACL_SET_FILE,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(gpfsacl_sys_acl_set_fd),
SMB_VFS_OP_SYS_ACL_SET_FD,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file),
SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(vfs_gpfs_chmod),
SMB_VFS_OP_CHMOD,
SMB_VFS_LAYER_TRANSPARENT },
-
+
{ SMB_VFS_OP(vfs_gpfs_fchmod),
SMB_VFS_OP_FCHMOD,
SMB_VFS_LAYER_TRANSPARENT },
NTSTATUS vfs_gpfs_init(void)
{
init_gpfs();
-
+
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
gpfs_op_tuples);
}
git.samba.org / abartlet / samba.git / .git / blobdiff