1 files changed, 296 insertions, 0 deletions
diff --git a/lib/util/gpfswrap.c b/lib/util/gpfswrap.c
new file mode 100644
index 0000000..2f15bf4
--- /dev/null
+++ b/lib/util/gpfswrap.c
@@ -0,0 +1,296 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  Wrapper for GPFS library
+ *  Copyright (C) Volker Lendecke 2005
+ *  Copyright (C) Christof Schmitt 2015
+ *
+ *  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 "replace.h"
+#include "gpfswrap.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 type);
+static int (*gpfs_fgetacl_fn)(int fd, int flags, void *acl);
+static int (*gpfs_putacl_fn)(const char *pathname, int flags, void *acl);
+static int (*gpfs_get_realfilename_path_fn)(const char *pathname,
+					    char *filenamep,
+					    int *len);
+static int (*gpfs_register_cifs_export_fn)(void);
+static int (*gpfs_set_winattrs_path_fn)(const char *pathname,
+					int flags,
+					struct gpfs_winattr *attrs);
+static int (*gpfs_set_winattrs_fn)(int fd, int flags,
+				   struct gpfs_winattr *attrs);
+static int (*gpfs_get_winattrs_fn)(int fd, struct gpfs_winattr *attrs);
+static int (*gpfs_ftruncate_fn)(int fd, gpfs_off64_t length);
+static int (*gpfs_lib_init_fn)(int flags);
+static int (*gpfs_set_times_fn)(int fd, int flags, gpfs_timestruc_t times[4]);
+static int (*gpfs_set_times_path_fn)(char *path,
+				     int flags,
+				     gpfs_timestruc_t times[4]);
+static int (*gpfs_quotactl_fn)(const char *pathname,
+			       int cmd,
+			       int id,
+			       void *bufp);
+static int (*gpfs_init_trace_fn)(void);
+static int (*gpfs_query_trace_fn)(void);
+static void (*gpfs_add_trace_fn)(int level, const char *msg);
+static void (*gpfs_fini_trace_fn)(void);
+static int (*gpfs_fstat_x_fn)(int fd, unsigned int *litemask,
+			      struct gpfs_iattr64 *iattr, size_t len);
+static int (*gpfs_stat_x_fn)(const char *pathname, unsigned int *litemask,
+			     struct gpfs_iattr64 *iattr, size_t len);
+
+int gpfswrap_init(void)
+{
+	static void *l;
+
+	if (l != NULL) {
+		return 0;
+	}
+
+	l = dlopen("libgpfs.so", RTLD_LAZY);
+	if (l == NULL) {
+		return -1;
+	}
+
+	gpfs_set_share_fn	      = dlsym(l, "gpfs_set_share");
+	gpfs_set_lease_fn	      = dlsym(l, "gpfs_set_lease");
+	gpfs_fgetacl_fn		      = dlsym(l, "gpfs_getacl_fd");
+	gpfs_putacl_fn		      = dlsym(l, "gpfs_putacl");
+	gpfs_get_realfilename_path_fn = dlsym(l, "gpfs_get_realfilename_path");
+	gpfs_register_cifs_export_fn  = dlsym(l, "gpfs_register_cifs_export");
+	gpfs_set_winattrs_path_fn     = dlsym(l, "gpfs_set_winattrs_path");
+	gpfs_set_winattrs_fn	      = dlsym(l, "gpfs_set_winattrs");
+	gpfs_get_winattrs_fn	      = dlsym(l, "gpfs_get_winattrs");
+	gpfs_ftruncate_fn	      = dlsym(l, "gpfs_ftruncate");
+	gpfs_lib_init_fn	      = dlsym(l, "gpfs_lib_init");
+	gpfs_set_times_fn	      = dlsym(l, "gpfs_set_times");
+	gpfs_set_times_path_fn	      = dlsym(l, "gpfs_set_times_path");
+	gpfs_quotactl_fn	      = dlsym(l, "gpfs_quotactl");
+	gpfs_init_trace_fn	      = dlsym(l, "gpfs_init_trace");
+	gpfs_query_trace_fn	      = dlsym(l, "gpfs_query_trace");
+	gpfs_add_trace_fn	      = dlsym(l, "gpfs_add_trace");
+	gpfs_fini_trace_fn	      = dlsym(l, "gpfs_fini_trace");
+	gpfs_fstat_x_fn	      = dlsym(l, "gpfs_fstat_x");
+	gpfs_stat_x_fn		      = dlsym(l, "gpfs_stat_x");
+
+	return 0;
+}
+
+int gpfswrap_set_share(int fd, unsigned int allow, unsigned int deny)
+{
+	if (gpfs_set_share_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_set_share_fn(fd, allow, deny);
+}
+
+int gpfswrap_set_lease(int fd, unsigned int type)
+{
+	if (gpfs_set_lease_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_set_lease_fn(fd, type);
+}
+
+int gpfswrap_fgetacl(int fd, int flags, void *acl)
+{
+	if (gpfs_fgetacl_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_fgetacl_fn(fd, flags, acl);
+}
+
+int gpfswrap_putacl(const char *pathname, int flags, void *acl)
+{
+	if (gpfs_putacl_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_putacl_fn(pathname, flags, acl);
+}
+
+int gpfswrap_get_realfilename_path(const char *pathname,
+				   char *filenamep,
+				   int *len)
+{
+	if (gpfs_get_realfilename_path_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_get_realfilename_path_fn(pathname, filenamep, len);
+}
+
+int gpfswrap_register_cifs_export(void)
+{
+	if (gpfs_register_cifs_export_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_register_cifs_export_fn();
+}
+
+int gpfswrap_set_winattrs_path(const char *pathname,
+			       int flags,
+			       struct gpfs_winattr *attrs)
+{
+	if (gpfs_set_winattrs_path_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_set_winattrs_path_fn(pathname, flags, attrs);
+}
+
+int gpfswrap_set_winattrs(int fd, int flags, struct gpfs_winattr *attrs)
+{
+	if (gpfs_set_winattrs_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_set_winattrs_fn(fd, flags, attrs);
+}
+
+int gpfswrap_get_winattrs(int fd, struct gpfs_winattr *attrs)
+{
+	if (gpfs_get_winattrs_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_get_winattrs_fn(fd, attrs);
+}
+
+int gpfswrap_ftruncate(int fd, gpfs_off64_t length)
+{
+	if (gpfs_ftruncate_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_ftruncate_fn(fd, length);
+}
+
+int gpfswrap_lib_init(int flags)
+{
+	if (gpfs_lib_init_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_lib_init_fn(flags);
+}
+
+int gpfswrap_set_times(int fd, int flags, gpfs_timestruc_t times[4])
+{
+	if (gpfs_set_times_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_set_times_fn(fd, flags, times);
+}
+
+int gpfswrap_set_times_path(char *path, int flags, gpfs_timestruc_t times[4])
+{
+	if (gpfs_set_times_path_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_set_times_path_fn(path, flags, times);
+}
+
+int gpfswrap_quotactl(const char *pathname, int cmd, int id, void *bufp)
+{
+	if (gpfs_quotactl_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_quotactl_fn(pathname, cmd, id, bufp);
+}
+
+int gpfswrap_init_trace(void)
+{
+	if (gpfs_init_trace_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_init_trace_fn();
+}
+
+int gpfswrap_query_trace(void)
+{
+	if (gpfs_query_trace_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_query_trace_fn();
+}
+
+void gpfswrap_add_trace(int level, const char *msg)
+{
+	if (gpfs_add_trace_fn == NULL) {
+		return;
+	}
+
+	gpfs_add_trace_fn(level, msg);
+}
+
+void gpfswrap_fini_trace(void)
+{
+	if (gpfs_fini_trace_fn == NULL) {
+		return;
+	}
+
+	gpfs_fini_trace_fn();
+}
+
+int gpfswrap_fstat_x(int fd, unsigned int *litemask,
+		     struct gpfs_iattr64 *iattr, size_t len)
+{
+	if (gpfs_fstat_x_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_fstat_x_fn(fd, litemask, iattr, len);
+}
+
+int gpfswrap_stat_x(const char *pathname, unsigned int *litemask,
+		    struct gpfs_iattr64 *iattr, size_t len)
+{
+	if (gpfs_stat_x_fn == NULL) {
+		errno = ENOSYS;
+		return -1;
+	}
+
+	return gpfs_stat_x_fn(pathname, litemask, iattr, len);
+}