Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/src/network/tc/tclass.h b/src/network/tc/tclass.h
new file mode 100644
index 0000000..e73e23c
--- /dev/null
+++ b/src/network/tc/tclass.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright © 2019 VMware, Inc. */
+#pragma once
+
+#include "conf-parser.h"
+#include "networkd-util.h"
+
+typedef struct Link Link;
+typedef struct Manager Manager;
+typedef struct Network Network;
+
+typedef enum TClassKind {
+        TCLASS_KIND_DRR,
+        TCLASS_KIND_HTB,
+        TCLASS_KIND_QFQ,
+        _TCLASS_KIND_MAX,
+        _TCLASS_KIND_INVALID = -EINVAL,
+} TClassKind;
+
+typedef struct TClass {
+        Link *link;
+        Network *network;
+        ConfigSection *section;
+        NetworkConfigSource source;
+        NetworkConfigState state;
+
+        uint32_t classid;
+        uint32_t parent;
+
+        TClassKind kind;
+        char *tca_kind;
+} TClass;
+
+typedef struct TClassVTable {
+        size_t object_size;
+        const char *tca_kind;
+        /* called in tclass_new() */
+        int (*init)(TClass *tclass);
+        int (*fill_message)(Link *link, TClass *tclass, sd_netlink_message *m);
+        int (*verify)(TClass *tclass);
+} TClassVTable;
+
+extern const TClassVTable * const tclass_vtable[_TCLASS_KIND_MAX];
+
+#define TCLASS_VTABLE(t) ((t)->kind != _TCLASS_KIND_INVALID ? tclass_vtable[(t)->kind] : NULL)
+
+/* For casting a tclass into the various tclass kinds */
+#define DEFINE_TCLASS_CAST(UPPERCASE, MixedCase)                          \
+        static inline MixedCase* TCLASS_TO_##UPPERCASE(TClass *t) {       \
+                if (_unlikely_(!t || t->kind != TCLASS_KIND_##UPPERCASE)) \
+                        return NULL;                                      \
+                                                                          \
+                return (MixedCase*) t;                                    \
+        }
+
+DEFINE_NETWORK_CONFIG_STATE_FUNCTIONS(TClass, tclass);
+
+TClass* tclass_free(TClass *tclass);
+int tclass_new_static(TClassKind kind, Network *network, const char *filename, unsigned section_line, TClass **ret);
+
+TClass* tclass_drop(TClass *tclass);
+
+int link_find_tclass(Link *link, uint32_t classid, TClass **ret);
+
+int link_request_tclass(Link *link, TClass *tclass);
+
+void network_drop_invalid_tclass(Network *network);
+
+int manager_rtnl_process_tclass(sd_netlink *rtnl, sd_netlink_message *message, Manager *m);
+int link_enumerate_tclass(Link *link, uint32_t parent);
+
+DEFINE_SECTION_CLEANUP_FUNCTIONS(TClass, tclass_free);
+
+CONFIG_PARSER_PROTOTYPE(config_parse_tclass_parent);
+CONFIG_PARSER_PROTOTYPE(config_parse_tclass_classid);
+
+#include "drr.h"
+#include "htb.h"
+#include "qfq.h"