diff options
Diffstat (limited to 'common/native/bpf_headers/include/bpf/BpfClassic.h')
| -rw-r--r-- | common/native/bpf_headers/include/bpf/BpfClassic.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/common/native/bpf_headers/include/bpf/BpfClassic.h b/common/native/bpf_headers/include/bpf/BpfClassic.h deleted file mode 100644 index dd0804c3..00000000 --- a/common/native/bpf_headers/include/bpf/BpfClassic.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - * Copyright (C) 2023 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#pragma once - -// Accept the full packet -#define BPF_ACCEPT BPF_STMT(BPF_RET | BPF_K, 0xFFFFFFFF) - -// Reject the packet -#define BPF_REJECT BPF_STMT(BPF_RET | BPF_K, 0) - -// *TWO* instructions: compare and if not equal jump over the accept statement -#define BPF2_ACCEPT_IF_EQUAL(v) \ - BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, (v), 0, 1), \ - BPF_ACCEPT - -// *TWO* instructions: compare and if equal jump over the reject statement -#define BPF2_REJECT_IF_NOT_EQUAL(v) \ - BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, (v), 1, 0), \ - BPF_REJECT - -// *TWO* instructions: compare and if none of the bits are set jump over the reject statement -#define BPF2_REJECT_IF_ANY_BITS_SET(v) \ - BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, (v), 0, 1), \ - BPF_REJECT - -// loads skb->protocol -#define BPF_LOAD_SKB_PROTOCOL \ - BPF_STMT(BPF_LD | BPF_H | BPF_ABS, (__u32)SKF_AD_OFF + SKF_AD_PROTOCOL) - -// 8-bit load relative to start of link layer (mac/ethernet) header. -#define BPF_LOAD_MAC_RELATIVE_U8(ofs) \ - BPF_STMT(BPF_LD | BPF_B | BPF_ABS, (__u32)SKF_LL_OFF + (ofs)) - -// Big/Network Endian 16-bit load relative to start of link layer (mac/ethernet) header. -#define BPF_LOAD_MAC_RELATIVE_BE16(ofs) \ - BPF_STMT(BPF_LD | BPF_H | BPF_ABS, (__u32)SKF_LL_OFF + (ofs)) - -// Big/Network Endian 32-bit load relative to start of link layer (mac/ethernet) header. -#define BPF_LOAD_MAC_RELATIVE_BE32(ofs) \ - BPF_STMT(BPF_LD | BPF_W | BPF_ABS, (__u32)SKF_LL_OFF + (ofs)) - -// 8-bit load relative to start of network (IPv4/IPv6) header. -#define BPF_LOAD_NET_RELATIVE_U8(ofs) \ - BPF_STMT(BPF_LD | BPF_B | BPF_ABS, (__u32)SKF_NET_OFF + (ofs)) - -// Big/Network Endian 16-bit load relative to start of network (IPv4/IPv6) header. -#define BPF_LOAD_NET_RELATIVE_BE16(ofs) \ - BPF_STMT(BPF_LD | BPF_H | BPF_ABS, (__u32)SKF_NET_OFF + (ofs)) - -// Big/Network Endian 32-bit load relative to start of network (IPv4/IPv6) header. -#define BPF_LOAD_NET_RELATIVE_BE32(ofs) \ - BPF_STMT(BPF_LD | BPF_W | BPF_ABS, (__u32)SKF_NET_OFF + (ofs)) - -#define field_sizeof(struct_type,field) sizeof(((struct_type *)0)->field) - -// 8-bit load from IPv4 header field. -#define BPF_LOAD_IPV4_U8(field) \ - BPF_LOAD_NET_RELATIVE_U8(({ \ - _Static_assert(field_sizeof(struct iphdr, field) == 1, "field of wrong size"); \ - offsetof(iphdr, field); \ - })) - -// Big/Network Endian 16-bit load from IPv4 header field. -#define BPF_LOAD_IPV4_BE16(field) \ - BPF_LOAD_NET_RELATIVE_BE16(({ \ - _Static_assert(field_sizeof(struct iphdr, field) == 2, "field of wrong size"); \ - offsetof(iphdr, field); \ - })) - -// Big/Network Endian 32-bit load from IPv4 header field. -#define BPF_LOAD_IPV4_BE32(field) \ - BPF_LOAD_NET_RELATIVE_BE32(({ \ - _Static_assert(field_sizeof(struct iphdr, field) == 4, "field of wrong size"); \ - offsetof(iphdr, field); \ - })) - -// 8-bit load from IPv6 header field. -#define BPF_LOAD_IPV6_U8(field) \ - BPF_LOAD_NET_RELATIVE_U8(({ \ - _Static_assert(field_sizeof(struct ipv6hdr, field) == 1, "field of wrong size"); \ - offsetof(ipv6hdr, field); \ - })) - -// Big/Network Endian 16-bit load from IPv6 header field. -#define BPF_LOAD_IPV6_BE16(field) \ - BPF_LOAD_NET_RELATIVE_BE16(({ \ - _Static_assert(field_sizeof(struct ipv6hdr, field) == 2, "field of wrong size"); \ - offsetof(ipv6hdr, field); \ - })) - -// Big/Network Endian 32-bit load from IPv6 header field. -#define BPF_LOAD_IPV6_BE32(field) \ - BPF_LOAD_NET_RELATIVE_BE32(({ \ - _Static_assert(field_sizeof(struct ipv6hdr, field) == 4, "field of wrong size"); \ - offsetof(ipv6hdr, field); \ - })) |