LU-15833 llapi: don't use realpath in llapi_search_fsname()

[fs/lustre-release.git] / lustre / utils / lustreapi_internal.h

diff --git a/lustre/utils/lustreapi_internal.h b/lustre/utils/lustreapi_internal.h
index 367393d..41b7087 100644 (file)
--- a/lustre/utils/lustreapi_internal.h
+++ b/lustre/utils/lustreapi_internal.h
@@ -50,13 +50,20 @@
 #define WANT_FD     0x4
 #define WANT_INDEX  0x8
 #define WANT_ERROR  0x10
+#define WANT_DEV    0x20
+
+/* Define a fixed 4096-byte encryption unit size */
+#define LUSTRE_ENCRYPTION_BLOCKBITS   12
+#define LUSTRE_ENCRYPTION_UNIT_SIZE   ((size_t)1 << LUSTRE_ENCRYPTION_BLOCKBITS)
+#define LUSTRE_ENCRYPTION_MASK        (~(LUSTRE_ENCRYPTION_UNIT_SIZE - 1))
 
 /* mount point listings in /proc/mounts */
 #ifndef PROC_MOUNTS
 #define PROC_MOUNTS "/proc/mounts"
 #endif
 
-int get_root_path(int want, char *fsname, int *outfd, char *path, int index);
+int get_root_path(int want, char *fsname, int *outfd, char *path, int index,
+                 dev_t *dev);
 int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len);
 int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len);
 int sattr_cache_get_defaults(const char *const fsname,
@@ -126,6 +133,24 @@ static inline bool llapi_stripe_index_is_valid(int64_t index)
        return index >= -1 && index <= LOV_V1_INSANE_STRIPE_COUNT;
 }
 
+static inline bool llapi_pool_name_is_valid(const char **pool_name)
+{
+       const char *ptr;
+
+       if (*pool_name == NULL)
+               return false;
+
+       /* Strip off any 'fsname.' portion. */
+       ptr = strchr(*pool_name, '.');
+       if (ptr != NULL)
+               *pool_name = ptr + 1;
+
+       if (strlen(*pool_name) > LOV_MAXPOOLNAME)
+               return false;
+
+       return true;
+}
+
 /* Compatibility macro for legacy llapi functions that use "offset"
  * terminology instead of the preferred "index". */
 #define llapi_stripe_offset_is_valid(os) llapi_stripe_index_is_valid(os)