Implemented sharing datasets via NFS using libshare.

The sharenfs and sharesmb properties depend on the libshare library
to export datasets via NFS and SMB. This commit implements the base
libshare functionality as well as support for managing NFS shares.

Signed-off-by: Brian Behlendorf <[email protected]>

1 files changed, 55 insertions, 1 deletions

diff --git a/lib/libspl/include/libshare.h b/lib/libspl/include/libshare.h
index f1fbfad2b..a35bfacd7 100644
--- a/lib/libspl/include/libshare.h
+++ b/lib/libspl/include/libshare.h
@@ -34,9 +34,63 @@ typedef void *sa_share_t;
 #define	SA_INIT_SHARE_API	0x0001	/* init share specific interface */
 #define	SA_INIT_CONTROL_API	0x0002	/* init control specific interface */
 
-/* Error values */
+/*
+ * defined error values
+ */
+
 #define	SA_OK			0
+#define	SA_NO_SUCH_PATH		1	/* provided path doesn't exist */
 #define	SA_NO_MEMORY		2	/* no memory for data structures */
+#define	SA_DUPLICATE_NAME	3	/* object name is already in use */
+#define	SA_BAD_PATH		4	/* not a full path */
+#define	SA_NO_SUCH_GROUP	5	/* group is not defined */
 #define	SA_CONFIG_ERR		6	/* system configuration error */
+#define	SA_SYSTEM_ERR		7	/* system error, use errno */
+#define	SA_SYNTAX_ERR		8	/* syntax error on command line */
+#define	SA_NO_PERMISSION	9	/* no permission for operation */
+#define	SA_BUSY			10	/* resource is busy */
+#define	SA_NO_SUCH_PROP		11	/* property doesn't exist */
+#define	SA_INVALID_NAME		12	/* name of object is invalid */
+#define	SA_INVALID_PROTOCOL	13	/* specified protocol not valid */
+#define	SA_NOT_ALLOWED		14	/* operation not allowed */
+#define	SA_BAD_VALUE		15	/* bad value for property */
+#define	SA_INVALID_SECURITY	16	/* invalid security type */
+#define	SA_NO_SUCH_SECURITY	17	/* security set not found */
+#define	SA_VALUE_CONFLICT	18	/* property value conflict */
+#define	SA_NOT_IMPLEMENTED	19	/* plugin interface not implemented */
+#define	SA_INVALID_PATH		20	/* path is sub-dir of existing share */
+#define	SA_NOT_SUPPORTED	21	/* operation not supported for proto */
+#define	SA_PROP_SHARE_ONLY	22	/* property valid on share only */
+#define	SA_NOT_SHARED		23	/* path is not shared */
+#define	SA_NO_SUCH_RESOURCE	24	/* resource not found */
+#define	SA_RESOURCE_REQUIRED	25	/* resource name is required  */
+#define	SA_MULTIPLE_ERROR	26	/* multiple protocols reported error */
+#define	SA_PATH_IS_SUBDIR	27	/* check_path found path is subdir */
+#define	SA_PATH_IS_PARENTDIR	28	/* check_path found path is parent */
+#define	SA_NO_SECTION		29	/* protocol requires section info */
+#define	SA_NO_SUCH_SECTION	30	/* no section found */
+#define	SA_NO_PROPERTIES	31	/* no properties found */
+#define	SA_PASSWORD_ENC		32	/* passwords must be encrypted */
+#define	SA_SHARE_EXISTS		33	/* path or file is already shared */
+
+/* initialization */
+extern sa_handle_t sa_init(int);
+extern void sa_fini(sa_handle_t);
+extern char *sa_errorstr(int);
+
+/* share control */
+extern sa_share_t sa_find_share(sa_handle_t, char *);
+extern int sa_enable_share(sa_group_t, char *);
+extern int sa_disable_share(sa_share_t, char *);
+
+/* protocol specific interfaces */
+extern int sa_parse_legacy_options(sa_group_t, char *, char *);
+
+/* ZFS functions */
+extern boolean_t sa_needs_refresh(sa_handle_t handle);
+libzfs_handle_t *sa_get_zfs_handle(sa_handle_t handle);
+extern int sa_zfs_process_share(sa_handle_t handle, sa_group_t group,
+    sa_share_t share, char *mountpoint, char *proto, zprop_source_t source,
+    char *shareopts, char *sourcestr, char *dataset);
 
 #endif /* _LIBSPL_LIBSHARE_H */