Added immutable file flag support for BSD

Ticket: ENT-10961, CFE-1840 Signed-off-by: Lars Erik Wik <[email protected]>
NorthernTechHQ · Jan 30, 2025 · e23e7a1 · e23e7a1
1 parent 612a05d
commit e23e7a1
Showing 1 changed file with 78 additions and 0 deletions.
diff --git a/libutils/fsattrs.c b/libutils/fsattrs.c
@@ -51,7 +51,31 @@ FSAttrsResult FileGetImmutableFlag(const char *filename, bool *flag)
     *flag = attrs & FS_IMMUTABLE_FL;
     return FS_ATTRS_SUCCESS;
 
+#elif defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) \
+    || defined(__NetBSD__)
+
+    struct stat sb;
+    int ret = lstat(filename, &sb);
+    if (ret == -1)
+    {
+        if (errno == ENOENT)
+        {
+            return FS_ATTRS_NOENTRY;
+        }
+
+        Log(LOG_LEVEL_ERR,
+            "Failed to get inode flags for file '%s': %s\n",
+            filename,
+            GetErrorStr());
+        return FS_ATTRS_FAILURE;
+    }
+
+    *flag = sb.st_flags & SF_IMMUTABLE;
+    return FS_ATTRS_SUCCESS;
+
 #else
+    /* Windows, AIX, HP-UX does not have file system flags as far as I can
+       tell */
     (void) filename;
     (void) flag;
     return FS_ATTRS_NOTSUPP;
@@ -129,7 +153,61 @@ FSAttrsResult FileUpdateImmutableFlag(const char *filename, bool flag)
     close(fd);
     return FS_ATTRS_SUCCESS;
 
+#elif defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) \
+    || defined(__NetBSD__)
+
+    struct stat sb;
+    int ret = lstat(filename, &sb);
+    if (ret == -1)
+    {
+        if (errno == ENOENT)
+        {
+            return FS_ATTRS_NOENTRY;
+        }
+
+        Log(LOG_LEVEL_ERR,
+            "Failed to get inode flags for file '%s': %s\n",
+            filename,
+            GetErrorStr());
+        return FS_ATTRS_FAILURE;
+    }
+
+
+    if (flag)
+    {
+        Log(LOG_LEVEL_DEBUG,
+            "Setting immutable bit in inode flags for file '%s'",
+            filename);
+        sb.st_flags |= SF_IMMUTABLE;
+    }
+    else
+    {
+        Log(LOG_LEVEL_DEBUG,
+            "Clearing immutable bit in inode flags for file '%s'",
+            filename);
+        sb.st_flags &= ~SF_IMMUTABLE;
+    }
+
+    ret = chflags(filename, sb.st_flags);
+    if (ret == -1)
+    {
+        if (errno == ENOTSUP)
+        {
+            return FS_ATTRS_NOTSUPP;
+        }
+
+        Log(LOG_LEVEL_ERR,
+            "Failed to update flags for file '%s': %s",
+            filename,
+            GetErrorStr());
+        return FS_ATTRS_FAILURE;
+    }
+
+    return FS_ATTRS_SUCCESS;
+
 #else
+    /* Windows, AIX, HP-UX does not have file system flags as far as I can
+       tell */
     (void) filename;
     (void) flag;
     return FS_ATTRS_NOTSUPP;