X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Flabel.c;h=d353da57ec3d2779d2de7a77388ae7193426aae3;hp=d91257462521348f5d95a364f6bc4eeeeba05f4a;hb=f274ece0f76b5709408821e317e87aef76123db6;hpb=c66e7f04997fb42b778703418097a5023fa17581

diff --git a/src/shared/label.c b/src/shared/label.c
index d91257462..d353da57e 100644
--- a/src/shared/label.c
+++ b/src/shared/label.c
@@ -31,28 +31,15 @@
 #include "path-util.h"
 
 #ifdef HAVE_SELINUX
+#include "selinux-util.h"
 #include <selinux/selinux.h>
 #include <selinux/label.h>
 
 static struct selabel_handle *label_hnd = NULL;
 
-static int use_selinux_cached = -1;
-
-static inline bool use_selinux(void) {
-
-        if (use_selinux_cached < 0)
-                use_selinux_cached = is_selinux_enabled() > 0;
-
-        return use_selinux_cached;
-}
-
-void label_retest_selinux(void) {
-        use_selinux_cached = -1;
-}
-
 #endif
 
-int label_init(const char *prefixes[]) {
+int label_init(const char *prefix) {
         int r = 0;
 
 #ifdef HAVE_SELINUX
@@ -68,9 +55,9 @@ int label_init(const char *prefixes[]) {
         before_mallinfo = mallinfo();
         before_timestamp = now(CLOCK_MONOTONIC);
 
-        if (prefixes) {
+        if (prefix) {
                 struct selinux_opt options[] = {
-                        { .type = SELABEL_OPT_SUBSET, .values = prefixes },
+                        { .type = SELABEL_OPT_SUBSET, .value = prefix },
                 };
 
                 label_hnd = selabel_open(SELABEL_CTX_FILE, options, ELEMENTSOF(options));
@@ -99,7 +86,7 @@ int label_init(const char *prefixes[]) {
         return r;
 }
 
-int label_fix(const char *path, bool ignore_enoent) {
+int label_fix(const char *path, bool ignore_enoent, bool ignore_erofs) {
         int r = 0;
 
 #ifdef HAVE_SELINUX
@@ -132,6 +119,9 @@ int label_fix(const char *path, bool ignore_enoent) {
                 if (ignore_enoent && errno == ENOENT)
                         return 0;
 
+                if (ignore_erofs && errno == EROFS)
+                        return 0;
+
                 log_full(security_getenforce() == 1 ? LOG_ERR : LOG_DEBUG,
                          "Unable to fix label of %s: %m", path);
                 r = security_getenforce() == 1 ? -errno : 0;
@@ -196,7 +186,7 @@ int label_context_set(const char *path, mode_t mode) {
                 return 0;
 
         r = selabel_lookup_raw(label_hnd, &filecon, path, mode);
-        if (r < 0)
+        if (r < 0 && errno != ENOENT)
                 r = -errno;
         else if (r == 0) {
                 r = setfscreatecon(filecon);