X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=include%2Fbpf_api.h;h=89d3488d0741ba2c4ff234eecfdaf20333089d8e;hb=HEAD;hp=0f278f0c2614499fef3ce193993138ce39592308;hpb=0395711c52260c3a1cb0984948c3db56c69a073b;p=mirror_iproute2.git

diff --git a/include/bpf_api.h b/include/bpf_api.h
index 0f278f0c..82c47089 100644
--- a/include/bpf_api.h
+++ b/include/bpf_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BPF_API__
 #define __BPF_API__
 
@@ -18,6 +19,19 @@
 
 #include "bpf_elf.h"
 
+/** libbpf pin type. */
+enum libbpf_pin_type {
+	LIBBPF_PIN_NONE,
+	/* PIN_BY_NAME: pin maps by name (in /sys/fs/bpf by default) */
+	LIBBPF_PIN_BY_NAME,
+};
+
+/** Type helper macros. */
+
+#define __uint(name, val) int (*name)[val]
+#define __type(name, val) typeof(val) *name
+#define __array(name, val) typeof(val) *name[]
+
 /** Misc macros. */
 
 #ifndef __stringify
@@ -72,6 +86,11 @@
 	__section(__stringify(ID) "/" __stringify(KEY))
 #endif
 
+#ifndef __section_xdp_entry
+# define __section_xdp_entry						\
+	__section(ELF_SECTION_PROG)
+#endif
+
 #ifndef __section_cls_entry
 # define __section_cls_entry						\
 	__section(ELF_SECTION_CLASSIFIER)
@@ -82,6 +101,11 @@
 	__section(ELF_SECTION_ACTION)
 #endif
 
+#ifndef __section_lwt_entry
+# define __section_lwt_entry						\
+	__section(ELF_SECTION_PROG)
+#endif
+
 #ifndef __section_license
 # define __section_license						\
 	__section(ELF_SECTION_LICENSE)
@@ -99,51 +123,6 @@
 	char ____license[] __section_license = NAME
 #endif
 
-#ifndef __BPF_MAP
-# define __BPF_MAP(NAME, TYPE, ID, SIZE_KEY, SIZE_VALUE, PIN, MAX_ELEM)	\
-	struct bpf_elf_map __section_maps NAME = {			\
-		.type		= (TYPE),				\
-		.id		= (ID),					\
-		.size_key	= (SIZE_KEY),				\
-		.size_value	= (SIZE_VALUE),				\
-		.pinning	= (PIN),				\
-		.max_elem	= (MAX_ELEM),				\
-	}
-#endif
-
-#ifndef BPF_HASH
-# define BPF_HASH(NAME, ID, SIZE_KEY, SIZE_VALUE, PIN, MAX_ELEM)	\
-	__BPF_MAP(NAME, BPF_MAP_TYPE_HASH, ID, SIZE_KEY, SIZE_VALUE,	\
-		  PIN, MAX_ELEM)
-#endif
-
-#ifndef BPF_ARRAY
-# define BPF_ARRAY(NAME, ID, SIZE_VALUE, PIN, MAX_ELEM)			\
-	__BPF_MAP(NAME, BPF_MAP_TYPE_ARRAY, ID, sizeof(uint32_t), 	\
-		  SIZE_VALUE, PIN, MAX_ELEM)
-#endif
-
-#ifndef BPF_ARRAY2
-# define BPF_ARRAY2(NAME, ID, PIN, MAX_ELEM)				\
-	BPF_ARRAY(NAME, ID, sizeof(uint16_t), PIN, MAX_ELEM)
-#endif
-
-#ifndef BPF_ARRAY4
-# define BPF_ARRAY4(NAME, ID, PIN, MAX_ELEM)				\
-	BPF_ARRAY(NAME, ID, sizeof(uint32_t), PIN, MAX_ELEM)
-#endif
-
-#ifndef BPF_ARRAY8
-# define BPF_ARRAY8(NAME, ID, PIN, MAX_ELEM)				\
-	BPF_ARRAY(NAME, ID, sizeof(uint64_t), PIN, MAX_ELEM)
-#endif
-
-#ifndef BPF_PROG_ARRAY
-# define BPF_PROG_ARRAY(NAME, ID, PIN, MAX_ELEM)			\
-	__BPF_MAP(NAME, BPF_MAP_TYPE_PROG_ARRAY, ID, sizeof(uint32_t),	\
-		  sizeof(uint32_t), PIN, MAX_ELEM)
-#endif
-
 /** Classifier helper */
 
 #ifndef BPF_H_DEFAULT
@@ -152,9 +131,14 @@
 
 /** BPF helper functions for tc. Individual flags are in linux/bpf.h */
 
+#ifndef __BPF_FUNC
+# define __BPF_FUNC(NAME, ...)						\
+	(* NAME)(__VA_ARGS__) __maybe_unused
+#endif
+
 #ifndef BPF_FUNC
 # define BPF_FUNC(NAME, ...)						\
-	(* NAME)(__VA_ARGS__) __maybe_unused = (void *) BPF_FUNC_##NAME
+	__BPF_FUNC(NAME, __VA_ARGS__) = (void *) BPF_FUNC_##NAME
 #endif
 
 /* Map access/manipulation */
@@ -192,10 +176,15 @@ static void BPF_FUNC(tail_call, struct __sk_buff *skb, void *map,
 
 /* System helpers */
 static uint32_t BPF_FUNC(get_smp_processor_id);
+static uint32_t BPF_FUNC(get_numa_node_id);
 
 /* Packet misc meta data */
 static uint32_t BPF_FUNC(get_cgroup_classid, struct __sk_buff *skb);
+static int BPF_FUNC(skb_under_cgroup, void *map, uint32_t index);
+
 static uint32_t BPF_FUNC(get_route_realm, struct __sk_buff *skb);
+static uint32_t BPF_FUNC(get_hash_recalc, struct __sk_buff *skb);
+static uint32_t BPF_FUNC(set_hash_invalid, struct __sk_buff *skb);
 
 /* Packet redirection */
 static int BPF_FUNC(redirect, int ifindex, uint32_t flags);
@@ -214,6 +203,20 @@ static int BPF_FUNC(l4_csum_replace, struct __sk_buff *skb, uint32_t off,
 		    uint32_t from, uint32_t to, uint32_t flags);
 static int BPF_FUNC(csum_diff, const void *from, uint32_t from_size,
 		    const void *to, uint32_t to_size, uint32_t seed);
+static int BPF_FUNC(csum_update, struct __sk_buff *skb, uint32_t wsum);
+
+static int BPF_FUNC(skb_change_type, struct __sk_buff *skb, uint32_t type);
+static int BPF_FUNC(skb_change_proto, struct __sk_buff *skb, uint32_t proto,
+		    uint32_t flags);
+static int BPF_FUNC(skb_change_tail, struct __sk_buff *skb, uint32_t nlen,
+		    uint32_t flags);
+
+static int BPF_FUNC(skb_pull_data, struct __sk_buff *skb, uint32_t len);
+
+/* Event notification */
+static int __BPF_FUNC(skb_event_output, struct __sk_buff *skb, void *map,
+		      uint64_t index, const void *data, uint32_t size) =
+		      (void *) BPF_FUNC_perf_event_output;
 
 /* Packet vlan encap/decap */
 static int BPF_FUNC(skb_vlan_push, struct __sk_buff *skb, uint16_t proto,