ima: move full pathname resolution to separate function
Define a new function ima_d_path(), which returns the full pathname.
This function will be used further, for example, by the directory
verification code.
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index fc722b4..9382a4c 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -237,3 +237,20 @@
iint->flags |= IMA_AUDITED;
}
+
+const char *ima_d_path(struct path *path, char **pathbuf)
+{
+ char *pathname = NULL;
+
+ /* We will allow 11 spaces for ' (deleted)' to be appended */
+ *pathbuf = kmalloc(PATH_MAX + 11, GFP_KERNEL);
+ if (*pathbuf) {
+ pathname = d_path(path, *pathbuf, PATH_MAX + 11);
+ if (IS_ERR(pathname)) {
+ kfree(*pathbuf);
+ *pathbuf = NULL;
+ pathname = NULL;
+ }
+ }
+ return pathname;
+}