b=17471 change conf_param syntax to match set_param

[fs/lustre-release.git] / libcfs / libcfs / nidstrings.c

diff --git a/libcfs/libcfs/nidstrings.c b/libcfs/libcfs/nidstrings.c
index d5b03ed..fa8ca85 100644 (file)
--- a/libcfs/libcfs/nidstrings.c
+++ b/libcfs/libcfs/nidstrings.c
@@ -557,6 +557,54 @@ libcfs_str2anynid(lnet_nid_t *nidp, const char *str)
         return *nidp != LNET_NID_ANY;
 }
 
+/* parse server details from name */
+int libcfs_str2server(char *name, int *type, __u32 *idx, char **endptr)
+{
+        char *ptr;
+        int i;
+
+        ptr = strstr(name, "-MDT");
+        if (ptr) {
+                *type = SVTYPE_MDT;
+        } else {
+                ptr = strstr(name, "-OST");
+                if (ptr)
+                        *type = SVTYPE_OST;
+                else
+                        return -EINVAL;
+        }
+        ptr += 4;
+
+        if (strncmp(ptr, "all", 3) == 0) {
+                ptr += 3;
+                *type |= SVTYPE_ALL;
+                goto out;
+        }
+        if (*ptr == '*') {
+                ptr++;
+                *type |= SVTYPE_ALL;
+                goto out;
+        }
+
+#if __KERNEL__
+        *idx = simple_strtoul(ptr, NULL, 16);
+#else
+        *idx = strtoul(ptr, NULL, 16);
+#endif
+        /* Require 4 hex digits */
+        for (i = 0; i < 4; i++)
+                if (!isxdigit(*ptr++))
+                        return -EINVAL;
+out:
+        /* Only acceptable garbage at the end of name is [-.:,] etc. */
+        if (isalnum(*ptr))
+                return -EINVAL;
+
+        if (endptr)
+                *endptr = ptr;
+        return 0;
+}
+
 /**
  * Nid range list syntax.
  * \verbatim
@@ -1274,6 +1322,7 @@ EXPORT_SYMBOL(libcfs_str2net);
 EXPORT_SYMBOL(libcfs_str2nid);
 EXPORT_SYMBOL(libcfs_id2str);
 EXPORT_SYMBOL(libcfs_str2anynid);
+EXPORT_SYMBOL(libcfs_str2server);
 EXPORT_SYMBOL(cfs_iswhite);
 EXPORT_SYMBOL(cfs_free_nidlist);
 EXPORT_SYMBOL(cfs_parse_nidlist);