1 files changed, 118 insertions, 0 deletions
diff --git a/support/nfsidmap/nfsidmap_common.c b/support/nfsidmap/nfsidmap_common.c
new file mode 100644
index 0000000..4d2cb14
--- /dev/null
+++ b/support/nfsidmap/nfsidmap_common.c
@@ -0,0 +1,118 @@
+/*
+ *  nfsidmap_common.c
+ *
+ *  nfs idmapping library, primarily for nfs4 client/server kernel idmapping
+ *  and for userland nfs4 idmapping by acl libraries.
+ *
+ *  Code common to libnfsidmap and some of its bundled plugins
+ *
+ *  If you make use of these functions you must initialise your own
+ *  copy of the config file data using: conf_init_file(nfsidmap_conf_path)
+ *  failure to do so will appear as if the config was empty
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include "nfsidmap.h"
+#include "nfsidmap_private.h"
+#include "nfsidmap_plugin.h"
+#include "conffile.h"
+
+#pragma GCC visibility push(hidden)
+
+static char * toupper_str(char *s)
+{
+        size_t i;
+        for (i=0; i < strlen(s); i++)
+                s[i] = toupper(s[i]);
+        return s;
+}
+
+static struct conf_list *local_realms = NULL;
+
+void free_local_realms(void)
+{
+	if (local_realms) {
+		conf_free_list(local_realms);
+		local_realms = NULL;
+	}
+}
+
+/* Get list of "local equivalent" realms.  Meaning the list of realms
+ * where john@REALM.A is considered the same user as john@REALM.B
+ * If not specified, default to upper-case of local domain name */
+struct conf_list *get_local_realms(void)
+{
+	if (local_realms) return local_realms;
+
+	local_realms = conf_get_list("General", "Local-Realms");
+	if (local_realms == NULL) {
+		struct conf_list_node *node;
+
+		local_realms = malloc(sizeof *local_realms);
+		if (local_realms == NULL)
+			return NULL;
+		local_realms->cnt = 0;
+		TAILQ_INIT(&local_realms->fields);
+
+		node = calloc(1, sizeof *node);
+		if (node == NULL)
+			return NULL;
+
+		node->field = calloc(1, NFS4_MAX_DOMAIN_LEN);
+		if (node->field == NULL) {
+			free(node);
+			return NULL;
+		}
+
+		nfs4_get_default_domain(NULL, node->field, NFS4_MAX_DOMAIN_LEN);
+		toupper_str(node->field);
+
+		TAILQ_INSERT_TAIL(&local_realms->fields, node, link);
+		local_realms->cnt++;
+	}
+	return local_realms;
+}
+
+static int no_strip = -1;
+static int reformat_group = 0;
+
+int get_nostrip(void)
+{
+	if (no_strip != -1) return no_strip;
+
+	char * nostrip = conf_get_str_with_def("General", "No-Strip", "none");
+	if (strcasecmp(nostrip, "both") == 0)
+		no_strip = IDTYPE_USER|IDTYPE_GROUP;
+	else if (strcasecmp(nostrip, "group") == 0)
+		no_strip = IDTYPE_GROUP;
+	else if (strcasecmp(nostrip, "user") == 0)
+		no_strip = IDTYPE_USER;
+	else
+		no_strip = 0;
+
+	if (no_strip & IDTYPE_GROUP) {
+		char * reformatgroup = conf_get_str_with_def("General", "Reformat-Group", "false");
+		if ((strcasecmp(reformatgroup, "true") == 0) ||
+		    (strcasecmp(reformatgroup, "on") == 0) ||
+		    (strcasecmp(reformatgroup, "yes") == 0))
+			reformat_group = 1;
+		else
+			reformat_group = 0;
+	}
+
+	return no_strip;
+}
+
+int get_reformat_group(void)
+{
+	if (no_strip != -1) return reformat_group;
+
+	return reformat_group;
+}