#include "vfs_gpfs.h"
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_set_lease_fn)(int fd, unsigned int type);
static int (*gpfs_getacl_fn)(char *pathname, int flags, void *acl);
static int (*gpfs_putacl_fn)(char *pathname, int flags, void *acl);
static int (*gpfs_get_realfilename_path_fn)(char *pathname, char *filenamep,
- int *buflen);
-static int (*gpfs_set_winattrs_path_fn)(char *pathname, int flags, struct gpfs_winattr *attrs);
-static int (*gpfs_get_winattrs_path_fn)(char *pathname, struct gpfs_winattr *attrs);
+ int *len);
+static int (*gpfs_set_winattrs_path_fn)(char *pathname, int flags,
+ struct gpfs_winattr *attrs);
+static int (*gpfs_get_winattrs_path_fn)(char *pathname,
+ struct gpfs_winattr *attrs);
static int (*gpfs_get_winattrs_fn)(int fd, struct gpfs_winattr *attrs);
-static int (*gpfs_prealloc_fn)(int fd, gpfs_off64_t startOffset, gpfs_off64_t bytesToPrealloc);
+static int (*gpfs_prealloc_fn)(int fd, gpfs_off64_t start, gpfs_off64_t bytes);
static int (*gpfs_ftruncate_fn)(int fd, gpfs_off64_t length);
static int (*gpfs_lib_init_fn)(int flags);
static int (*gpfs_set_times_path_fn)(char *pathname, int flags,
static int (*gpfs_fcntl_fn)(gpfs_file_t fileDesc, void *fcntlArgP);
static int (*gpfs_getfilesetid_fn)(char *pathname, char *name, int *idP);
-bool set_gpfs_sharemode(files_struct *fsp, uint32 access_mask,
- uint32 share_access)
+int gpfswrap_init(void)
{
- unsigned int allow = GPFS_SHARE_NONE;
- unsigned int deny = GPFS_DENY_NONE;
- int result;
+ static void *l;
- if (gpfs_set_share_fn == NULL) {
- return False;
+ if (l != NULL) {
+ return 0;
}
- if ((fsp == NULL) || (fsp->fh == NULL) || (fsp->fh->fd < 0)) {
- /* No real file, don't disturb */
- return True;
+ l = dlopen("libgpfs.so", RTLD_LAZY);
+ if (l == NULL) {
+ return -1;
}
- 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;
-
- if (allow == GPFS_SHARE_NONE) {
- DEBUG(10, ("special case am=no_access:%x\n",access_mask));
- }
- else {
- deny |= (share_access & FILE_SHARE_WRITE) ?
- 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));
+ gpfs_set_share_fn = dlsym(l, "gpfs_set_share");
+ gpfs_set_lease_fn = dlsym(l, "gpfs_set_lease");
+ gpfs_getacl_fn = dlsym(l, "gpfs_getacl");
+ gpfs_putacl_fn = dlsym(l, "gpfs_putacl");
+ gpfs_get_realfilename_path_fn = dlsym(l, "gpfs_get_realfilename_path");
+ gpfs_set_winattrs_path_fn = dlsym(l, "gpfs_set_winattrs_path");
+ gpfs_get_winattrs_path_fn = dlsym(l, "gpfs_get_winattrs_path");
+ gpfs_get_winattrs_fn = dlsym(l, "gpfs_get_winattrs");
+ gpfs_prealloc_fn = dlsym(l, "gpfs_prealloc");
+ gpfs_ftruncate_fn = dlsym(l, "gpfs_ftruncate");
+ gpfs_lib_init_fn = dlsym(l, "gpfs_lib_init");
+ gpfs_set_times_path_fn = dlsym(l, "gpfs_set_times_path");
+ gpfs_quotactl_fn = dlsym(l, "gpfs_quotactl");
+ gpfs_fcntl_fn = dlsym(l, "gpfs_fcntl");
+ gpfs_getfilesetid_fn = dlsym(l, "gpfs_getfilesetid");
+
+ return 0;
+}
- 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)));
- }
+int gpfswrap_set_share(int fd, unsigned int allow, unsigned int deny)
+{
+ if (gpfs_set_share_fn == NULL) {
+ errno = ENOSYS;
+ return -1;
}
- return (result == 0);
+ return gpfs_set_share_fn(fd, allow, deny);
}
-int set_gpfs_lease(int fd, int leasetype)
+int gpfswrap_set_lease(int fd, unsigned int type)
{
- int gpfs_type = GPFS_LEASE_NONE;
-
if (gpfs_set_lease_fn == NULL) {
- errno = EINVAL;
+ errno = ENOSYS;
return -1;
}
- if (leasetype == F_RDLCK) {
- gpfs_type = GPFS_LEASE_READ;
- }
- if (leasetype == F_WRLCK) {
- gpfs_type = GPFS_LEASE_WRITE;
- }
-
- /* we unconditionally set CAP_LEASE, rather than looking for
- -1/EACCES as there is a bug in some versions of
- libgpfs_gpl.so which results in a leaked fd on /dev/ss0
- each time we try this with the wrong capabilities set
- */
- linux_set_lease_capability();
- return gpfs_set_lease_fn(fd, gpfs_type);
+ return gpfs_set_lease_fn(fd, type);
}
-int smbd_gpfs_getacl(char *pathname, int flags, void *acl)
+int gpfswrap_getacl(char *pathname, int flags, void *acl)
{
if (gpfs_getacl_fn == NULL) {
errno = ENOSYS;
return gpfs_getacl_fn(pathname, flags, acl);
}
-int smbd_gpfs_putacl(char *pathname, int flags, void *acl)
+int gpfswrap_putacl(char *pathname, int flags, void *acl)
{
if (gpfs_putacl_fn == NULL) {
errno = ENOSYS;
return gpfs_putacl_fn(pathname, flags, acl);
}
-int smbd_gpfs_ftruncate(int fd, gpfs_off64_t length)
+int gpfswrap_get_realfilename_path(char *pathname, char *filenamep, int *len)
{
- if (gpfs_ftruncate_fn == NULL) {
+ if (gpfs_get_realfilename_path_fn == NULL) {
errno = ENOSYS;
return -1;
}
- return gpfs_ftruncate_fn(fd, length);
+ return gpfs_get_realfilename_path_fn(pathname, filenamep, len);
}
-int smbd_gpfs_get_realfilename_path(char *pathname, char *filenamep,
- int *buflen)
+int gpfswrap_set_winattrs_path(char *pathname, int flags,
+ struct gpfs_winattr *attrs)
{
- if (gpfs_get_realfilename_path_fn == NULL) {
+ if (gpfs_set_winattrs_path_fn == NULL) {
errno = ENOSYS;
return -1;
}
- return gpfs_get_realfilename_path_fn(pathname, filenamep, buflen);
+ return gpfs_set_winattrs_path_fn(pathname, flags, attrs);
}
-int get_gpfs_winattrs(char *pathname,struct gpfs_winattr *attrs)
+int gpfswrap_get_winattrs_path(char *pathname, struct gpfs_winattr *attrs)
{
if (gpfs_get_winattrs_path_fn == NULL) {
- errno = ENOSYS;
- return -1;
- }
- DEBUG(10, ("gpfs_get_winattrs_path:open call %s\n",pathname));
- return gpfs_get_winattrs_path_fn(pathname, attrs);
+ errno = ENOSYS;
+ return -1;
+ }
+
+ return gpfs_get_winattrs_path_fn(pathname, attrs);
}
-int smbd_fget_gpfs_winattrs(int fd, struct gpfs_winattr *attrs)
+int gpfswrap_get_winattrs(int fd, struct gpfs_winattr *attrs)
{
if (gpfs_get_winattrs_fn == NULL) {
- errno = ENOSYS;
- return -1;
- }
- DEBUG(10, ("gpfs_get_winattrs:open call %d\n", fd));
- return gpfs_get_winattrs_fn(fd, attrs);
+ errno = ENOSYS;
+ return -1;
+ }
+
+ return gpfs_get_winattrs_fn(fd, attrs);
}
-int smbd_gpfs_prealloc(int fd, gpfs_off64_t start, gpfs_off64_t bytes)
+int gpfswrap_prealloc(int fd, gpfs_off64_t start, gpfs_off64_t bytes)
{
if (gpfs_prealloc_fn == NULL) {
errno = ENOSYS;
return gpfs_prealloc_fn(fd, start, bytes);
}
-int set_gpfs_winattrs(char *pathname,int flags,struct gpfs_winattr *attrs)
+int gpfswrap_ftruncate(int fd, gpfs_off64_t length)
{
- if (gpfs_set_winattrs_path_fn == NULL) {
- errno = ENOSYS;
- return -1;
- }
+ if (gpfs_ftruncate_fn == NULL) {
+ errno = ENOSYS;
+ return -1;
+ }
+
+ return gpfs_ftruncate_fn(fd, length);
+}
- DEBUG(10, ("gpfs_set_winattrs_path:open call %s\n",pathname));
- return gpfs_set_winattrs_path_fn(pathname,flags, attrs);
+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 ((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;
+
+ if (allow == GPFS_SHARE_NONE) {
+ DEBUG(10, ("special case am=no_access:%x\n",access_mask));
+ }
+ else {
+ deny |= (share_access & FILE_SHARE_WRITE) ?
+ 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 = gpfswrap_set_share(fsp->fh->fd, allow, deny);
+ if (result != 0) {
+ if (errno == ENOSYS) {
+ DEBUG(5, ("VFS module vfs_gpfs loaded, but gpfs "
+ "set_share function support not available. "
+ "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 (leasetype == F_RDLCK) {
+ gpfs_type = GPFS_LEASE_READ;
+ }
+ if (leasetype == F_WRLCK) {
+ gpfs_type = GPFS_LEASE_WRITE;
+ }
+
+ /* we unconditionally set CAP_LEASE, rather than looking for
+ -1/EACCES as there is a bug in some versions of
+ libgpfs_gpl.so which results in a leaked fd on /dev/ss0
+ each time we try this with the wrong capabilities set
+ */
+ linux_set_lease_capability();
+ return gpfswrap_set_lease(fd, gpfs_type);
}
int get_gpfs_quota(const char *pathname, int type, int id,
return rc;
}
-
-static bool init_gpfs_function_lib(void *plibhandle_pointer,
- const char *libname,
- void *pfn_pointer, const char *fn_name)
-{
- bool did_open_here = false;
- void **libhandle_pointer = (void **)plibhandle_pointer;
- void **fn_pointer = (void **)pfn_pointer;
-
- DEBUG(10, ("trying to load name %s from %s\n",
- fn_name, libname));
-
- if (*libhandle_pointer == NULL) {
- *libhandle_pointer = dlopen(libname, RTLD_LAZY);
- did_open_here = true;
- }
- if (*libhandle_pointer == NULL) {
- DEBUG(10, ("Could not open lib %s\n", libname));
- return false;
- }
-
- *fn_pointer = dlsym(*libhandle_pointer, fn_name);
- if (*fn_pointer == NULL) {
- DEBUG(10, ("Did not find symbol %s in lib %s\n",
- fn_name, libname));
- if (did_open_here) {
- dlclose(*libhandle_pointer);
- *libhandle_pointer = NULL;
- }
- return false;
- }
-
- return true;
-}
-
-static bool init_gpfs_function(void *fn_pointer, const char *fn_name)
-{
- static void *libgpfs_handle = NULL;
- static void *libgpfs_gpl_handle = NULL;
-
- if (init_gpfs_function_lib(&libgpfs_handle, "libgpfs.so",
- fn_pointer, fn_name)) {
- return true;
- }
- if (init_gpfs_function_lib(&libgpfs_gpl_handle, "libgpfs_gpl.so",
- fn_pointer, fn_name)) {
- return true;
- }
- return false;
-}
-
-void init_gpfs(void)
-{
- init_gpfs_function(&gpfs_set_share_fn, "gpfs_set_share");
- init_gpfs_function(&gpfs_set_lease_fn, "gpfs_set_lease");
- init_gpfs_function(&gpfs_getacl_fn, "gpfs_getacl");
- init_gpfs_function(&gpfs_putacl_fn, "gpfs_putacl");
- init_gpfs_function(&gpfs_get_realfilename_path_fn,
- "gpfs_get_realfilename_path");
- init_gpfs_function(&gpfs_get_winattrs_path_fn,"gpfs_get_winattrs_path");
- init_gpfs_function(&gpfs_set_winattrs_path_fn,"gpfs_set_winattrs_path");
- init_gpfs_function(&gpfs_get_winattrs_fn,"gpfs_get_winattrs");
- init_gpfs_function(&gpfs_prealloc_fn, "gpfs_prealloc");
- init_gpfs_function(&gpfs_ftruncate_fn, "gpfs_ftruncate");
- init_gpfs_function(&gpfs_lib_init_fn,"gpfs_lib_init");
- init_gpfs_function(&gpfs_set_times_path_fn, "gpfs_set_times_path");
- init_gpfs_function(&gpfs_quotactl_fn, "gpfs_quotactl");
- init_gpfs_function(&gpfs_fcntl_fn, "gpfs_fcntl");
- init_gpfs_function(&gpfs_getfilesetid_fn, "gpfs_getfilesetid");
-
- return;
-}
git.samba.org / samba.git / blobdiff