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chore: drop support of eBPF
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This commit is contained in:
Larvan2
parent
6bf419c5fe
commit
0793998de8
4
Makefile
4
Makefile
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@ -163,7 +163,3 @@ clean:
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CLANG ?= clang-14
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CFLAGS := -O2 -g -Wall -Werror $(CFLAGS)
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ebpf: export BPF_CLANG := $(CLANG)
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ebpf: export BPF_CFLAGS := $(CFLAGS)
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ebpf:
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cd component/ebpf/ && go generate ./...
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@ -1,99 +0,0 @@
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/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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#ifndef __BPF_ENDIAN__
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#define __BPF_ENDIAN__
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/*
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* Isolate byte #n and put it into byte #m, for __u##b type.
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* E.g., moving byte #6 (nnnnnnnn) into byte #1 (mmmmmmmm) for __u64:
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* 1) xxxxxxxx nnnnnnnn xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx mmmmmmmm xxxxxxxx
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* 2) nnnnnnnn xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx mmmmmmmm xxxxxxxx 00000000
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* 3) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 nnnnnnnn
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* 4) 00000000 00000000 00000000 00000000 00000000 00000000 nnnnnnnn 00000000
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*/
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#define ___bpf_mvb(x, b, n, m) ((__u##b)(x) << (b-(n+1)*8) >> (b-8) << (m*8))
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#define ___bpf_swab16(x) ((__u16)( \
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___bpf_mvb(x, 16, 0, 1) | \
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___bpf_mvb(x, 16, 1, 0)))
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#define ___bpf_swab32(x) ((__u32)( \
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___bpf_mvb(x, 32, 0, 3) | \
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___bpf_mvb(x, 32, 1, 2) | \
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___bpf_mvb(x, 32, 2, 1) | \
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___bpf_mvb(x, 32, 3, 0)))
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#define ___bpf_swab64(x) ((__u64)( \
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___bpf_mvb(x, 64, 0, 7) | \
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___bpf_mvb(x, 64, 1, 6) | \
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___bpf_mvb(x, 64, 2, 5) | \
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___bpf_mvb(x, 64, 3, 4) | \
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___bpf_mvb(x, 64, 4, 3) | \
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___bpf_mvb(x, 64, 5, 2) | \
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___bpf_mvb(x, 64, 6, 1) | \
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___bpf_mvb(x, 64, 7, 0)))
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/* LLVM's BPF target selects the endianness of the CPU
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* it compiles on, or the user specifies (bpfel/bpfeb),
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* respectively. The used __BYTE_ORDER__ is defined by
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* the compiler, we cannot rely on __BYTE_ORDER from
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* libc headers, since it doesn't reflect the actual
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* requested byte order.
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*
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* Note, LLVM's BPF target has different __builtin_bswapX()
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* semantics. It does map to BPF_ALU | BPF_END | BPF_TO_BE
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* in bpfel and bpfeb case, which means below, that we map
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* to cpu_to_be16(). We could use it unconditionally in BPF
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* case, but better not rely on it, so that this header here
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* can be used from application and BPF program side, which
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* use different targets.
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*/
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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# define __bpf_ntohs(x) __builtin_bswap16(x)
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# define __bpf_htons(x) __builtin_bswap16(x)
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# define __bpf_constant_ntohs(x) ___bpf_swab16(x)
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# define __bpf_constant_htons(x) ___bpf_swab16(x)
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# define __bpf_ntohl(x) __builtin_bswap32(x)
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# define __bpf_htonl(x) __builtin_bswap32(x)
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# define __bpf_constant_ntohl(x) ___bpf_swab32(x)
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# define __bpf_constant_htonl(x) ___bpf_swab32(x)
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# define __bpf_be64_to_cpu(x) __builtin_bswap64(x)
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# define __bpf_cpu_to_be64(x) __builtin_bswap64(x)
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# define __bpf_constant_be64_to_cpu(x) ___bpf_swab64(x)
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# define __bpf_constant_cpu_to_be64(x) ___bpf_swab64(x)
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#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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# define __bpf_ntohs(x) (x)
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# define __bpf_htons(x) (x)
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# define __bpf_constant_ntohs(x) (x)
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# define __bpf_constant_htons(x) (x)
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# define __bpf_ntohl(x) (x)
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# define __bpf_htonl(x) (x)
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# define __bpf_constant_ntohl(x) (x)
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# define __bpf_constant_htonl(x) (x)
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# define __bpf_be64_to_cpu(x) (x)
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# define __bpf_cpu_to_be64(x) (x)
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# define __bpf_constant_be64_to_cpu(x) (x)
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# define __bpf_constant_cpu_to_be64(x) (x)
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#else
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# error "Fix your compiler's __BYTE_ORDER__?!"
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#endif
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#define bpf_htons(x) \
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(__builtin_constant_p(x) ? \
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__bpf_constant_htons(x) : __bpf_htons(x))
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#define bpf_ntohs(x) \
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(__builtin_constant_p(x) ? \
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__bpf_constant_ntohs(x) : __bpf_ntohs(x))
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#define bpf_htonl(x) \
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(__builtin_constant_p(x) ? \
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__bpf_constant_htonl(x) : __bpf_htonl(x))
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#define bpf_ntohl(x) \
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(__builtin_constant_p(x) ? \
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__bpf_constant_ntohl(x) : __bpf_ntohl(x))
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#define bpf_cpu_to_be64(x) \
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(__builtin_constant_p(x) ? \
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__bpf_constant_cpu_to_be64(x) : __bpf_cpu_to_be64(x))
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#define bpf_be64_to_cpu(x) \
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(__builtin_constant_p(x) ? \
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__bpf_constant_be64_to_cpu(x) : __bpf_be64_to_cpu(x))
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#endif /* __BPF_ENDIAN__ */
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File diff suppressed because it is too large
Load Diff
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@ -1,262 +0,0 @@
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/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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#ifndef __BPF_HELPERS__
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#define __BPF_HELPERS__
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/*
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* Note that bpf programs need to include either
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* vmlinux.h (auto-generated from BTF) or linux/types.h
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* in advance since bpf_helper_defs.h uses such types
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* as __u64.
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*/
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#include "bpf_helper_defs.h"
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#define __uint(name, val) int (*name)[val]
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#define __type(name, val) typeof(val) *name
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#define __array(name, val) typeof(val) *name[]
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/*
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* Helper macro to place programs, maps, license in
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* different sections in elf_bpf file. Section names
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* are interpreted by libbpf depending on the context (BPF programs, BPF maps,
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* extern variables, etc).
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* To allow use of SEC() with externs (e.g., for extern .maps declarations),
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* make sure __attribute__((unused)) doesn't trigger compilation warning.
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*/
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#define SEC(name) \
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wignored-attributes\"") \
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__attribute__((section(name), used)) \
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_Pragma("GCC diagnostic pop") \
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/* Avoid 'linux/stddef.h' definition of '__always_inline'. */
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#undef __always_inline
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#define __always_inline inline __attribute__((always_inline))
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#ifndef __noinline
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#define __noinline __attribute__((noinline))
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#endif
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#ifndef __weak
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#define __weak __attribute__((weak))
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#endif
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/*
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* Use __hidden attribute to mark a non-static BPF subprogram effectively
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* static for BPF verifier's verification algorithm purposes, allowing more
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* extensive and permissive BPF verification process, taking into account
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* subprogram's caller context.
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*/
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#define __hidden __attribute__((visibility("hidden")))
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/* When utilizing vmlinux.h with BPF CO-RE, user BPF programs can't include
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* any system-level headers (such as stddef.h, linux/version.h, etc), and
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* commonly-used macros like NULL and KERNEL_VERSION aren't available through
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* vmlinux.h. This just adds unnecessary hurdles and forces users to re-define
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* them on their own. So as a convenience, provide such definitions here.
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*/
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#ifndef NULL
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#define NULL ((void *)0)
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#endif
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#ifndef KERNEL_VERSION
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#define KERNEL_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + ((c) > 255 ? 255 : (c)))
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#endif
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/*
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* Helper macros to manipulate data structures
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*/
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#ifndef offsetof
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#define offsetof(TYPE, MEMBER) ((unsigned long)&((TYPE *)0)->MEMBER)
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#endif
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#ifndef container_of
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#define container_of(ptr, type, member) \
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({ \
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void *__mptr = (void *)(ptr); \
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((type *)(__mptr - offsetof(type, member))); \
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})
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#endif
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/*
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* Helper macro to throw a compilation error if __bpf_unreachable() gets
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* built into the resulting code. This works given BPF back end does not
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* implement __builtin_trap(). This is useful to assert that certain paths
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* of the program code are never used and hence eliminated by the compiler.
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*
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* For example, consider a switch statement that covers known cases used by
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* the program. __bpf_unreachable() can then reside in the default case. If
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* the program gets extended such that a case is not covered in the switch
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* statement, then it will throw a build error due to the default case not
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* being compiled out.
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*/
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#ifndef __bpf_unreachable
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# define __bpf_unreachable() __builtin_trap()
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#endif
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/*
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* Helper function to perform a tail call with a constant/immediate map slot.
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*/
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#if __clang_major__ >= 8 && defined(__bpf__)
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static __always_inline void
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bpf_tail_call_static(void *ctx, const void *map, const __u32 slot)
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{
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if (!__builtin_constant_p(slot))
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__bpf_unreachable();
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/*
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* Provide a hard guarantee that LLVM won't optimize setting r2 (map
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* pointer) and r3 (constant map index) from _different paths_ ending
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* up at the _same_ call insn as otherwise we won't be able to use the
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* jmpq/nopl retpoline-free patching by the x86-64 JIT in the kernel
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* given they mismatch. See also d2e4c1e6c294 ("bpf: Constant map key
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* tracking for prog array pokes") for details on verifier tracking.
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*
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* Note on clobber list: we need to stay in-line with BPF calling
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* convention, so even if we don't end up using r0, r4, r5, we need
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* to mark them as clobber so that LLVM doesn't end up using them
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* before / after the call.
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*/
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asm volatile("r1 = %[ctx]\n\t"
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"r2 = %[map]\n\t"
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"r3 = %[slot]\n\t"
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"call 12"
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:: [ctx]"r"(ctx), [map]"r"(map), [slot]"i"(slot)
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: "r0", "r1", "r2", "r3", "r4", "r5");
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}
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#endif
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/*
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* Helper structure used by eBPF C program
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* to describe BPF map attributes to libbpf loader
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*/
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struct bpf_map_def {
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unsigned int type;
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unsigned int key_size;
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unsigned int value_size;
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unsigned int max_entries;
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unsigned int map_flags;
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};
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enum libbpf_pin_type {
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LIBBPF_PIN_NONE,
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/* PIN_BY_NAME: pin maps by name (in /sys/fs/bpf by default) */
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LIBBPF_PIN_BY_NAME,
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};
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enum libbpf_tristate {
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TRI_NO = 0,
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TRI_YES = 1,
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TRI_MODULE = 2,
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};
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#define __kconfig __attribute__((section(".kconfig")))
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#define __ksym __attribute__((section(".ksyms")))
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#ifndef ___bpf_concat
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#define ___bpf_concat(a, b) a ## b
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#endif
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#ifndef ___bpf_apply
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#define ___bpf_apply(fn, n) ___bpf_concat(fn, n)
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#endif
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#ifndef ___bpf_nth
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#define ___bpf_nth(_, _1, _2, _3, _4, _5, _6, _7, _8, _9, _a, _b, _c, N, ...) N
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#endif
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#ifndef ___bpf_narg
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#define ___bpf_narg(...) \
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___bpf_nth(_, ##__VA_ARGS__, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
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#endif
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#define ___bpf_fill0(arr, p, x) do {} while (0)
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#define ___bpf_fill1(arr, p, x) arr[p] = x
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#define ___bpf_fill2(arr, p, x, args...) arr[p] = x; ___bpf_fill1(arr, p + 1, args)
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#define ___bpf_fill3(arr, p, x, args...) arr[p] = x; ___bpf_fill2(arr, p + 1, args)
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#define ___bpf_fill4(arr, p, x, args...) arr[p] = x; ___bpf_fill3(arr, p + 1, args)
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#define ___bpf_fill5(arr, p, x, args...) arr[p] = x; ___bpf_fill4(arr, p + 1, args)
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#define ___bpf_fill6(arr, p, x, args...) arr[p] = x; ___bpf_fill5(arr, p + 1, args)
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#define ___bpf_fill7(arr, p, x, args...) arr[p] = x; ___bpf_fill6(arr, p + 1, args)
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#define ___bpf_fill8(arr, p, x, args...) arr[p] = x; ___bpf_fill7(arr, p + 1, args)
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#define ___bpf_fill9(arr, p, x, args...) arr[p] = x; ___bpf_fill8(arr, p + 1, args)
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#define ___bpf_fill10(arr, p, x, args...) arr[p] = x; ___bpf_fill9(arr, p + 1, args)
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#define ___bpf_fill11(arr, p, x, args...) arr[p] = x; ___bpf_fill10(arr, p + 1, args)
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#define ___bpf_fill12(arr, p, x, args...) arr[p] = x; ___bpf_fill11(arr, p + 1, args)
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#define ___bpf_fill(arr, args...) \
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___bpf_apply(___bpf_fill, ___bpf_narg(args))(arr, 0, args)
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/*
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* BPF_SEQ_PRINTF to wrap bpf_seq_printf to-be-printed values
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* in a structure.
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*/
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#define BPF_SEQ_PRINTF(seq, fmt, args...) \
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({ \
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static const char ___fmt[] = fmt; \
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unsigned long long ___param[___bpf_narg(args)]; \
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\
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \
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___bpf_fill(___param, args); \
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_Pragma("GCC diagnostic pop") \
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\
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bpf_seq_printf(seq, ___fmt, sizeof(___fmt), \
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___param, sizeof(___param)); \
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})
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/*
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* BPF_SNPRINTF wraps the bpf_snprintf helper with variadic arguments instead of
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* an array of u64.
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*/
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#define BPF_SNPRINTF(out, out_size, fmt, args...) \
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({ \
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static const char ___fmt[] = fmt; \
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unsigned long long ___param[___bpf_narg(args)]; \
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\
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \
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___bpf_fill(___param, args); \
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_Pragma("GCC diagnostic pop") \
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\
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bpf_snprintf(out, out_size, ___fmt, \
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___param, sizeof(___param)); \
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})
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#ifdef BPF_NO_GLOBAL_DATA
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#define BPF_PRINTK_FMT_MOD
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#else
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#define BPF_PRINTK_FMT_MOD static const
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#endif
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#define __bpf_printk(fmt, ...) \
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({ \
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BPF_PRINTK_FMT_MOD char ____fmt[] = fmt; \
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bpf_trace_printk(____fmt, sizeof(____fmt), \
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##__VA_ARGS__); \
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})
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/*
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* __bpf_vprintk wraps the bpf_trace_vprintk helper with variadic arguments
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* instead of an array of u64.
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*/
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#define __bpf_vprintk(fmt, args...) \
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({ \
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static const char ___fmt[] = fmt; \
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unsigned long long ___param[___bpf_narg(args)]; \
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\
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \
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___bpf_fill(___param, args); \
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_Pragma("GCC diagnostic pop") \
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\
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bpf_trace_vprintk(___fmt, sizeof(___fmt), \
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___param, sizeof(___param)); \
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})
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/* Use __bpf_printk when bpf_printk call has 3 or fewer fmt args
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* Otherwise use __bpf_vprintk
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*/
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#define ___bpf_pick_printk(...) \
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___bpf_nth(_, ##__VA_ARGS__, __bpf_vprintk, __bpf_vprintk, __bpf_vprintk, \
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__bpf_vprintk, __bpf_vprintk, __bpf_vprintk, __bpf_vprintk, \
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__bpf_vprintk, __bpf_vprintk, __bpf_printk /*3*/, __bpf_printk /*2*/,\
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__bpf_printk /*1*/, __bpf_printk /*0*/)
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/* Helper macro to print out debug messages */
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#define bpf_printk(fmt, args...) ___bpf_pick_printk(args)(fmt, ##args)
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#endif
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@ -1,342 +0,0 @@
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#include <stdint.h>
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#include <stdbool.h>
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//#include <linux/types.h>
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#include <linux/bpf.h>
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#include <linux/if_ether.h>
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//#include <linux/if_packet.h>
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//#include <linux/if_vlan.h>
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#include <linux/ip.h>
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#include <linux/in.h>
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#include <linux/tcp.h>
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//#include <linux/udp.h>
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|
||||
#include <linux/pkt_cls.h>
|
||||
|
||||
#include "bpf_endian.h"
|
||||
#include "bpf_helpers.h"
|
||||
|
||||
#define IP_CSUM_OFF (ETH_HLEN + offsetof(struct iphdr, check))
|
||||
#define IP_DST_OFF (ETH_HLEN + offsetof(struct iphdr, daddr))
|
||||
#define IP_SRC_OFF (ETH_HLEN + offsetof(struct iphdr, saddr))
|
||||
#define IP_PROTO_OFF (ETH_HLEN + offsetof(struct iphdr, protocol))
|
||||
#define TCP_CSUM_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct tcphdr, check))
|
||||
#define TCP_SRC_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct tcphdr, source))
|
||||
#define TCP_DST_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct tcphdr, dest))
|
||||
//#define UDP_CSUM_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct udphdr, check))
|
||||
//#define UDP_SRC_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct udphdr, source))
|
||||
//#define UDP_DST_OFF (ETH_HLEN + sizeof(struct iphdr) + offsetof(struct udphdr, dest))
|
||||
#define IS_PSEUDO 0x10
|
||||
|
||||
struct origin_info {
|
||||
__be32 ip;
|
||||
__be16 port;
|
||||
__u16 pad;
|
||||
};
|
||||
|
||||
struct origin_info *origin_info_unused __attribute__((unused));
|
||||
|
||||
struct redir_info {
|
||||
__be32 sip;
|
||||
__be32 dip;
|
||||
__be16 sport;
|
||||
__be16 dport;
|
||||
};
|
||||
|
||||
struct redir_info *redir_info_unused __attribute__((unused));
|
||||
|
||||
struct {
|
||||
__uint(type, BPF_MAP_TYPE_LRU_HASH);
|
||||
__type(key, struct redir_info);
|
||||
__type(value, struct origin_info);
|
||||
__uint(max_entries, 65535);
|
||||
__uint(pinning, LIBBPF_PIN_BY_NAME);
|
||||
} pair_original_dst_map SEC(".maps");
|
||||
|
||||
struct {
|
||||
__uint(type, BPF_MAP_TYPE_ARRAY);
|
||||
__type(key, __u32);
|
||||
__type(value, __u32);
|
||||
__uint(max_entries, 3);
|
||||
__uint(pinning, LIBBPF_PIN_BY_NAME);
|
||||
} redir_params_map SEC(".maps");
|
||||
|
||||
static __always_inline int rewrite_ip(struct __sk_buff *skb, __be32 new_ip, bool is_dest) {
|
||||
int ret, off = 0, flags = IS_PSEUDO;
|
||||
__be32 old_ip;
|
||||
|
||||
if (is_dest)
|
||||
ret = bpf_skb_load_bytes(skb, IP_DST_OFF, &old_ip, 4);
|
||||
else
|
||||
ret = bpf_skb_load_bytes(skb, IP_SRC_OFF, &old_ip, 4);
|
||||
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
off = TCP_CSUM_OFF;
|
||||
// __u8 proto;
|
||||
//
|
||||
// ret = bpf_skb_load_bytes(skb, IP_PROTO_OFF, &proto, 1);
|
||||
// if (ret < 0) {
|
||||
// return BPF_DROP;
|
||||
// }
|
||||
//
|
||||
// switch (proto) {
|
||||
// case IPPROTO_TCP:
|
||||
// off = TCP_CSUM_OFF;
|
||||
// break;
|
||||
//
|
||||
// case IPPROTO_UDP:
|
||||
// off = UDP_CSUM_OFF;
|
||||
// flags |= BPF_F_MARK_MANGLED_0;
|
||||
// break;
|
||||
//
|
||||
// case IPPROTO_ICMPV6:
|
||||
// off = offsetof(struct icmp6hdr, icmp6_cksum);
|
||||
// break;
|
||||
// }
|
||||
//
|
||||
// if (off) {
|
||||
ret = bpf_l4_csum_replace(skb, off, old_ip, new_ip, flags | sizeof(new_ip));
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
// }
|
||||
|
||||
ret = bpf_l3_csum_replace(skb, IP_CSUM_OFF, old_ip, new_ip, sizeof(new_ip));
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (is_dest)
|
||||
ret = bpf_skb_store_bytes(skb, IP_DST_OFF, &new_ip, sizeof(new_ip), 0);
|
||||
else
|
||||
ret = bpf_skb_store_bytes(skb, IP_SRC_OFF, &new_ip, sizeof(new_ip), 0);
|
||||
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static __always_inline int rewrite_port(struct __sk_buff *skb, __be16 new_port, bool is_dest) {
|
||||
int ret, off = 0;
|
||||
__be16 old_port;
|
||||
|
||||
if (is_dest)
|
||||
ret = bpf_skb_load_bytes(skb, TCP_DST_OFF, &old_port, 2);
|
||||
else
|
||||
ret = bpf_skb_load_bytes(skb, TCP_SRC_OFF, &old_port, 2);
|
||||
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
off = TCP_CSUM_OFF;
|
||||
|
||||
ret = bpf_l4_csum_replace(skb, off, old_port, new_port, sizeof(new_port));
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (is_dest)
|
||||
ret = bpf_skb_store_bytes(skb, TCP_DST_OFF, &new_port, sizeof(new_port), 0);
|
||||
else
|
||||
ret = bpf_skb_store_bytes(skb, TCP_SRC_OFF, &new_port, sizeof(new_port), 0);
|
||||
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static __always_inline bool is_lan_ip(__be32 addr) {
|
||||
if (addr == 0xffffffff)
|
||||
return true;
|
||||
|
||||
__u8 fist = (__u8)(addr & 0xff);
|
||||
|
||||
if (fist == 127 || fist == 10)
|
||||
return true;
|
||||
|
||||
__u8 second = (__u8)((addr >> 8) & 0xff);
|
||||
|
||||
if (fist == 172 && second >= 16 && second <= 31)
|
||||
return true;
|
||||
|
||||
if (fist == 192 && second == 168)
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
SEC("tc_mihomo_auto_redir_ingress")
|
||||
int tc_redir_ingress_func(struct __sk_buff *skb) {
|
||||
void *data = (void *)(long)skb->data;
|
||||
void *data_end = (void *)(long)skb->data_end;
|
||||
struct ethhdr *eth = data;
|
||||
|
||||
if ((void *)(eth + 1) > data_end)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (eth->h_proto != bpf_htons(ETH_P_IP))
|
||||
return TC_ACT_OK;
|
||||
|
||||
struct iphdr *iph = (struct iphdr *)(eth + 1);
|
||||
if ((void *)(iph + 1) > data_end)
|
||||
return TC_ACT_OK;
|
||||
|
||||
__u32 key = 0, *route_index, *redir_ip, *redir_port;
|
||||
|
||||
route_index = bpf_map_lookup_elem(&redir_params_map, &key);
|
||||
if (!route_index)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (iph->protocol == IPPROTO_ICMP && *route_index != 0)
|
||||
return bpf_redirect(*route_index, 0);
|
||||
|
||||
if (iph->protocol != IPPROTO_TCP)
|
||||
return TC_ACT_OK;
|
||||
|
||||
struct tcphdr *tcph = (struct tcphdr *)(iph + 1);
|
||||
if ((void *)(tcph + 1) > data_end)
|
||||
return TC_ACT_SHOT;
|
||||
|
||||
key = 1;
|
||||
redir_ip = bpf_map_lookup_elem(&redir_params_map, &key);
|
||||
if (!redir_ip)
|
||||
return TC_ACT_OK;
|
||||
|
||||
key = 2;
|
||||
redir_port = bpf_map_lookup_elem(&redir_params_map, &key);
|
||||
if (!redir_port)
|
||||
return TC_ACT_OK;
|
||||
|
||||
__be32 new_ip = bpf_htonl(*redir_ip);
|
||||
__be16 new_port = bpf_htonl(*redir_port) >> 16;
|
||||
__be32 old_ip = iph->daddr;
|
||||
__be16 old_port = tcph->dest;
|
||||
|
||||
if (old_ip == new_ip || is_lan_ip(old_ip) || bpf_ntohs(old_port) == 53) {
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
struct redir_info p_key = {
|
||||
.sip = iph->saddr,
|
||||
.sport = tcph->source,
|
||||
.dip = new_ip,
|
||||
.dport = new_port,
|
||||
};
|
||||
|
||||
if (tcph->syn && !tcph->ack) {
|
||||
struct origin_info origin = {
|
||||
.ip = old_ip,
|
||||
.port = old_port,
|
||||
};
|
||||
|
||||
bpf_map_update_elem(&pair_original_dst_map, &p_key, &origin, BPF_NOEXIST);
|
||||
|
||||
if (rewrite_ip(skb, new_ip, true) < 0) {
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
if (rewrite_port(skb, new_port, true) < 0) {
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
} else {
|
||||
struct origin_info *origin = bpf_map_lookup_elem(&pair_original_dst_map, &p_key);
|
||||
if (!origin) {
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
if (rewrite_ip(skb, new_ip, true) < 0) {
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
if (rewrite_port(skb, new_port, true) < 0) {
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
}
|
||||
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
SEC("tc_mihomo_auto_redir_egress")
|
||||
int tc_redir_egress_func(struct __sk_buff *skb) {
|
||||
void *data = (void *)(long)skb->data;
|
||||
void *data_end = (void *)(long)skb->data_end;
|
||||
struct ethhdr *eth = data;
|
||||
|
||||
if ((void *)(eth + 1) > data_end)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (eth->h_proto != bpf_htons(ETH_P_IP))
|
||||
return TC_ACT_OK;
|
||||
|
||||
__u32 key = 0, *redir_ip, *redir_port; // *mihomo_mark
|
||||
|
||||
// mihomo_mark = bpf_map_lookup_elem(&redir_params_map, &key);
|
||||
// if (mihomo_mark && *mihomo_mark != 0 && *mihomo_mark == skb->mark)
|
||||
// return TC_ACT_OK;
|
||||
|
||||
struct iphdr *iph = (struct iphdr *)(eth + 1);
|
||||
if ((void *)(iph + 1) > data_end)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (iph->protocol != IPPROTO_TCP)
|
||||
return TC_ACT_OK;
|
||||
|
||||
struct tcphdr *tcph = (struct tcphdr *)(iph + 1);
|
||||
if ((void *)(tcph + 1) > data_end)
|
||||
return TC_ACT_SHOT;
|
||||
|
||||
key = 1;
|
||||
redir_ip = bpf_map_lookup_elem(&redir_params_map, &key);
|
||||
if (!redir_ip)
|
||||
return TC_ACT_OK;
|
||||
|
||||
key = 2;
|
||||
redir_port = bpf_map_lookup_elem(&redir_params_map, &key);
|
||||
if (!redir_port)
|
||||
return TC_ACT_OK;
|
||||
|
||||
__be32 new_ip = bpf_htonl(*redir_ip);
|
||||
__be16 new_port = bpf_htonl(*redir_port) >> 16;
|
||||
__be32 old_ip = iph->saddr;
|
||||
__be16 old_port = tcph->source;
|
||||
|
||||
if (old_ip != new_ip || old_port != new_port) {
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
struct redir_info p_key = {
|
||||
.sip = iph->daddr,
|
||||
.sport = tcph->dest,
|
||||
.dip = iph->saddr,
|
||||
.dport = tcph->source,
|
||||
};
|
||||
|
||||
struct origin_info *origin = bpf_map_lookup_elem(&pair_original_dst_map, &p_key);
|
||||
if (!origin) {
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
if (tcph->fin && tcph->ack) {
|
||||
bpf_map_delete_elem(&pair_original_dst_map, &p_key);
|
||||
}
|
||||
|
||||
if (rewrite_ip(skb, origin->ip, false) < 0) {
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
if (rewrite_port(skb, origin->port, false) < 0) {
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
char _license[] SEC("license") = "GPL";
|
||||
|
|
@ -1,103 +0,0 @@
|
|||
#include <stdbool.h>
|
||||
#include <linux/bpf.h>
|
||||
#include <linux/if_ether.h>
|
||||
#include <linux/ip.h>
|
||||
#include <linux/in.h>
|
||||
//#include <linux/tcp.h>
|
||||
//#include <linux/udp.h>
|
||||
#include <linux/pkt_cls.h>
|
||||
|
||||
#include "bpf_endian.h"
|
||||
#include "bpf_helpers.h"
|
||||
|
||||
struct {
|
||||
__uint(type, BPF_MAP_TYPE_ARRAY);
|
||||
__type(key, __u32);
|
||||
__type(value, __u32);
|
||||
__uint(max_entries, 2);
|
||||
__uint(pinning, LIBBPF_PIN_BY_NAME);
|
||||
} tc_params_map SEC(".maps");
|
||||
|
||||
static __always_inline bool is_lan_ip(__be32 addr) {
|
||||
if (addr == 0xffffffff)
|
||||
return true;
|
||||
|
||||
__u8 fist = (__u8)(addr & 0xff);
|
||||
|
||||
if (fist == 127 || fist == 10)
|
||||
return true;
|
||||
|
||||
__u8 second = (__u8)((addr >> 8) & 0xff);
|
||||
|
||||
if (fist == 172 && second >= 16 && second <= 31)
|
||||
return true;
|
||||
|
||||
if (fist == 192 && second == 168)
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
SEC("tc_mihomo_redirect_to_tun")
|
||||
int tc_tun_func(struct __sk_buff *skb) {
|
||||
void *data = (void *)(long)skb->data;
|
||||
void *data_end = (void *)(long)skb->data_end;
|
||||
struct ethhdr *eth = data;
|
||||
|
||||
if ((void *)(eth + 1) > data_end)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (eth->h_proto == bpf_htons(ETH_P_ARP))
|
||||
return TC_ACT_OK;
|
||||
|
||||
__u32 key = 0, *mihomo_mark, *tun_ifindex;
|
||||
|
||||
mihomo_mark = bpf_map_lookup_elem(&tc_params_map, &key);
|
||||
if (!mihomo_mark)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (skb->mark == *mihomo_mark)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (eth->h_proto == bpf_htons(ETH_P_IP)) {
|
||||
struct iphdr *iph = (struct iphdr *)(eth + 1);
|
||||
if ((void *)(iph + 1) > data_end)
|
||||
return TC_ACT_OK;
|
||||
|
||||
if (iph->protocol == IPPROTO_ICMP)
|
||||
return TC_ACT_OK;
|
||||
|
||||
__be32 daddr = iph->daddr;
|
||||
|
||||
if (is_lan_ip(daddr))
|
||||
return TC_ACT_OK;
|
||||
|
||||
// if (iph->protocol == IPPROTO_TCP) {
|
||||
// struct tcphdr *tcph = (struct tcphdr *)(iph + 1);
|
||||
// if ((void *)(tcph + 1) > data_end)
|
||||
// return TC_ACT_OK;
|
||||
//
|
||||
// __u16 source = bpf_ntohs(tcph->source);
|
||||
// if (source == 22 || source == 80 || source == 443 || source == 8080 || source == 8443 || source == 9090 || (source >= 7890 && source <= 7895))
|
||||
// return TC_ACT_OK;
|
||||
// } else if (iph->protocol == IPPROTO_UDP) {
|
||||
// struct udphdr *udph = (struct udphdr *)(iph + 1);
|
||||
// if ((void *)(udph + 1) > data_end)
|
||||
// return TC_ACT_OK;
|
||||
//
|
||||
// __u16 source = bpf_ntohs(udph->source);
|
||||
// if (source == 53 || (source >= 135 && source <= 139))
|
||||
// return TC_ACT_OK;
|
||||
// }
|
||||
}
|
||||
|
||||
key = 1;
|
||||
tun_ifindex = bpf_map_lookup_elem(&tc_params_map, &key);
|
||||
if (!tun_ifindex)
|
||||
return TC_ACT_OK;
|
||||
|
||||
//return bpf_redirect(*tun_ifindex, BPF_F_INGRESS); // __bpf_rx_skb
|
||||
return bpf_redirect(*tun_ifindex, 0); // __bpf_tx_skb / __dev_xmit_skb
|
||||
}
|
||||
|
||||
char _license[] SEC("license") = "GPL";
|
||||
|
|
@ -1,13 +0,0 @@
|
|||
package byteorder
|
||||
|
||||
import (
|
||||
"net"
|
||||
)
|
||||
|
||||
// NetIPv4ToHost32 converts an net.IP to a uint32 in host byte order. ip
|
||||
// must be a IPv4 address, otherwise the function will panic.
|
||||
func NetIPv4ToHost32(ip net.IP) uint32 {
|
||||
ipv4 := ip.To4()
|
||||
_ = ipv4[3] // Assert length of ipv4.
|
||||
return Native.Uint32(ipv4)
|
||||
}
|
||||
|
|
@ -1,12 +0,0 @@
|
|||
//go:build arm64be || armbe || mips || mips64 || mips64p32 || ppc64 || s390 || s390x || sparc || sparc64
|
||||
|
||||
package byteorder
|
||||
|
||||
import "encoding/binary"
|
||||
|
||||
var Native binary.ByteOrder = binary.BigEndian
|
||||
|
||||
func HostToNetwork16(u uint16) uint16 { return u }
|
||||
func HostToNetwork32(u uint32) uint32 { return u }
|
||||
func NetworkToHost16(u uint16) uint16 { return u }
|
||||
func NetworkToHost32(u uint32) uint32 { return u }
|
||||
|
|
@ -1,15 +0,0 @@
|
|||
//go:build 386 || amd64 || amd64p32 || arm || arm64 || mips64le || mips64p32le || mipsle || ppc64le || riscv64 || loong64
|
||||
|
||||
package byteorder
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"math/bits"
|
||||
)
|
||||
|
||||
var Native binary.ByteOrder = binary.LittleEndian
|
||||
|
||||
func HostToNetwork16(u uint16) uint16 { return bits.ReverseBytes16(u) }
|
||||
func HostToNetwork32(u uint32) uint32 { return bits.ReverseBytes32(u) }
|
||||
func NetworkToHost16(u uint16) uint16 { return bits.ReverseBytes16(u) }
|
||||
func NetworkToHost32(u uint32) uint32 { return bits.ReverseBytes32(u) }
|
||||
|
|
@ -1,33 +0,0 @@
|
|||
package ebpf
|
||||
|
||||
import (
|
||||
"net/netip"
|
||||
|
||||
C "github.com/metacubex/mihomo/constant"
|
||||
"github.com/metacubex/mihomo/transport/socks5"
|
||||
)
|
||||
|
||||
type TcEBpfProgram struct {
|
||||
pros []C.EBpf
|
||||
rawNICs []string
|
||||
}
|
||||
|
||||
func (t *TcEBpfProgram) RawNICs() []string {
|
||||
return t.rawNICs
|
||||
}
|
||||
|
||||
func (t *TcEBpfProgram) Close() {
|
||||
for _, p := range t.pros {
|
||||
p.Close()
|
||||
}
|
||||
}
|
||||
|
||||
func (t *TcEBpfProgram) Lookup(srcAddrPort netip.AddrPort) (addr socks5.Addr, err error) {
|
||||
for _, p := range t.pros {
|
||||
addr, err = p.Lookup(srcAddrPort)
|
||||
if err == nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
|
@ -1,137 +0,0 @@
|
|||
//go:build !android
|
||||
|
||||
package ebpf
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net/netip"
|
||||
|
||||
"github.com/metacubex/mihomo/common/cmd"
|
||||
"github.com/metacubex/mihomo/component/dialer"
|
||||
"github.com/metacubex/mihomo/component/ebpf/redir"
|
||||
"github.com/metacubex/mihomo/component/ebpf/tc"
|
||||
C "github.com/metacubex/mihomo/constant"
|
||||
"github.com/sagernet/netlink"
|
||||
)
|
||||
|
||||
func GetAutoDetectInterface() (string, error) {
|
||||
routes, err := netlink.RouteList(nil, netlink.FAMILY_V4)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
for _, route := range routes {
|
||||
if route.Dst == nil {
|
||||
lk, err := netlink.LinkByIndex(route.LinkIndex)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
if lk.Type() == "tuntap" {
|
||||
continue
|
||||
}
|
||||
|
||||
return lk.Attrs().Name, nil
|
||||
}
|
||||
}
|
||||
|
||||
return "", fmt.Errorf("interface not found")
|
||||
}
|
||||
|
||||
// NewTcEBpfProgram new redirect to tun ebpf program
|
||||
func NewTcEBpfProgram(ifaceNames []string, tunName string) (*TcEBpfProgram, error) {
|
||||
tunIface, err := netlink.LinkByName(tunName)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("lookup network iface %q: %w", tunName, err)
|
||||
}
|
||||
|
||||
tunIndex := uint32(tunIface.Attrs().Index)
|
||||
|
||||
dialer.DefaultRoutingMark.Store(C.MihomoTrafficMark)
|
||||
|
||||
ifMark := uint32(dialer.DefaultRoutingMark.Load())
|
||||
|
||||
var pros []C.EBpf
|
||||
for _, ifaceName := range ifaceNames {
|
||||
iface, err := netlink.LinkByName(ifaceName)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("lookup network iface %q: %w", ifaceName, err)
|
||||
}
|
||||
if iface.Attrs().OperState != netlink.OperUp {
|
||||
return nil, fmt.Errorf("network iface %q is down", ifaceName)
|
||||
}
|
||||
|
||||
attrs := iface.Attrs()
|
||||
index := attrs.Index
|
||||
|
||||
tcPro := tc.NewEBpfTc(ifaceName, index, ifMark, tunIndex)
|
||||
if err = tcPro.Start(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
pros = append(pros, tcPro)
|
||||
}
|
||||
|
||||
systemSetting(ifaceNames...)
|
||||
|
||||
return &TcEBpfProgram{pros: pros, rawNICs: ifaceNames}, nil
|
||||
}
|
||||
|
||||
// NewRedirEBpfProgram new auto redirect ebpf program
|
||||
func NewRedirEBpfProgram(ifaceNames []string, redirPort uint16, defaultRouteInterfaceName string) (*TcEBpfProgram, error) {
|
||||
defaultRouteInterface, err := netlink.LinkByName(defaultRouteInterfaceName)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("lookup network iface %q: %w", defaultRouteInterfaceName, err)
|
||||
}
|
||||
|
||||
defaultRouteIndex := uint32(defaultRouteInterface.Attrs().Index)
|
||||
|
||||
var pros []C.EBpf
|
||||
for _, ifaceName := range ifaceNames {
|
||||
iface, err := netlink.LinkByName(ifaceName)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("lookup network iface %q: %w", ifaceName, err)
|
||||
}
|
||||
|
||||
attrs := iface.Attrs()
|
||||
index := attrs.Index
|
||||
|
||||
addrs, err := netlink.AddrList(iface, netlink.FAMILY_V4)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("lookup network iface %q address: %w", ifaceName, err)
|
||||
}
|
||||
|
||||
if len(addrs) == 0 {
|
||||
return nil, fmt.Errorf("network iface %q does not contain any ipv4 addresses", ifaceName)
|
||||
}
|
||||
|
||||
address, _ := netip.AddrFromSlice(addrs[0].IP)
|
||||
redirAddrPort := netip.AddrPortFrom(address, redirPort)
|
||||
|
||||
redirPro := redir.NewEBpfRedirect(ifaceName, index, 0, defaultRouteIndex, redirAddrPort)
|
||||
if err = redirPro.Start(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
pros = append(pros, redirPro)
|
||||
}
|
||||
|
||||
systemSetting(ifaceNames...)
|
||||
|
||||
return &TcEBpfProgram{pros: pros, rawNICs: ifaceNames}, nil
|
||||
}
|
||||
|
||||
func systemSetting(ifaceNames ...string) {
|
||||
_, _ = cmd.ExecCmd("sysctl -w net.ipv4.ip_forward=1")
|
||||
_, _ = cmd.ExecCmd("sysctl -w net.ipv4.conf.all.forwarding=1")
|
||||
_, _ = cmd.ExecCmd("sysctl -w net.ipv4.conf.all.accept_local=1")
|
||||
_, _ = cmd.ExecCmd("sysctl -w net.ipv4.conf.all.accept_redirects=1")
|
||||
_, _ = cmd.ExecCmd("sysctl -w net.ipv4.conf.all.rp_filter=0")
|
||||
|
||||
for _, ifaceName := range ifaceNames {
|
||||
_, _ = cmd.ExecCmd(fmt.Sprintf("sysctl -w net.ipv4.conf.%s.forwarding=1", ifaceName))
|
||||
_, _ = cmd.ExecCmd(fmt.Sprintf("sysctl -w net.ipv4.conf.%s.accept_local=1", ifaceName))
|
||||
_, _ = cmd.ExecCmd(fmt.Sprintf("sysctl -w net.ipv4.conf.%s.accept_redirects=1", ifaceName))
|
||||
_, _ = cmd.ExecCmd(fmt.Sprintf("sysctl -w net.ipv4.conf.%s.rp_filter=0", ifaceName))
|
||||
}
|
||||
}
|
||||
|
|
@ -1,21 +0,0 @@
|
|||
//go:build !linux || android
|
||||
|
||||
package ebpf
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
)
|
||||
|
||||
// NewTcEBpfProgram new ebpf tc program
|
||||
func NewTcEBpfProgram(_ []string, _ string) (*TcEBpfProgram, error) {
|
||||
return nil, fmt.Errorf("system not supported")
|
||||
}
|
||||
|
||||
// NewRedirEBpfProgram new ebpf redirect program
|
||||
func NewRedirEBpfProgram(_ []string, _ uint16, _ string) (*TcEBpfProgram, error) {
|
||||
return nil, fmt.Errorf("system not supported")
|
||||
}
|
||||
|
||||
func GetAutoDetectInterface() (string, error) {
|
||||
return "", fmt.Errorf("system not supported")
|
||||
}
|
||||
|
|
@ -1,216 +0,0 @@
|
|||
//go:build linux
|
||||
|
||||
package redir
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"io"
|
||||
"net"
|
||||
"net/netip"
|
||||
"os"
|
||||
"path/filepath"
|
||||
|
||||
"github.com/cilium/ebpf"
|
||||
"github.com/cilium/ebpf/rlimit"
|
||||
"github.com/sagernet/netlink"
|
||||
"golang.org/x/sys/unix"
|
||||
|
||||
"github.com/metacubex/mihomo/component/ebpf/byteorder"
|
||||
C "github.com/metacubex/mihomo/constant"
|
||||
"github.com/metacubex/mihomo/transport/socks5"
|
||||
)
|
||||
|
||||
//go:generate go run github.com/cilium/ebpf/cmd/bpf2go -cc $BPF_CLANG -cflags $BPF_CFLAGS bpf ../bpf/redir.c
|
||||
|
||||
const (
|
||||
mapKey1 uint32 = 0
|
||||
mapKey2 uint32 = 1
|
||||
mapKey3 uint32 = 2
|
||||
)
|
||||
|
||||
type EBpfRedirect struct {
|
||||
objs io.Closer
|
||||
originMap *ebpf.Map
|
||||
qdisc netlink.Qdisc
|
||||
filter netlink.Filter
|
||||
filterEgress netlink.Filter
|
||||
|
||||
ifName string
|
||||
ifIndex int
|
||||
ifMark uint32
|
||||
rtIndex uint32
|
||||
redirIp uint32
|
||||
redirPort uint16
|
||||
|
||||
bpfPath string
|
||||
}
|
||||
|
||||
func NewEBpfRedirect(ifName string, ifIndex int, ifMark uint32, routeIndex uint32, redirAddrPort netip.AddrPort) *EBpfRedirect {
|
||||
return &EBpfRedirect{
|
||||
ifName: ifName,
|
||||
ifIndex: ifIndex,
|
||||
ifMark: ifMark,
|
||||
rtIndex: routeIndex,
|
||||
redirIp: binary.BigEndian.Uint32(redirAddrPort.Addr().AsSlice()),
|
||||
redirPort: redirAddrPort.Port(),
|
||||
}
|
||||
}
|
||||
|
||||
func (e *EBpfRedirect) Start() error {
|
||||
if err := rlimit.RemoveMemlock(); err != nil {
|
||||
return fmt.Errorf("remove memory lock: %w", err)
|
||||
}
|
||||
|
||||
e.bpfPath = filepath.Join(C.BpfFSPath, e.ifName)
|
||||
if err := os.MkdirAll(e.bpfPath, os.ModePerm); err != nil {
|
||||
return fmt.Errorf("failed to create bpf fs subpath: %w", err)
|
||||
}
|
||||
|
||||
var objs bpfObjects
|
||||
if err := loadBpfObjects(&objs, &ebpf.CollectionOptions{
|
||||
Maps: ebpf.MapOptions{
|
||||
PinPath: e.bpfPath,
|
||||
},
|
||||
}); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("loading objects: %w", err)
|
||||
}
|
||||
|
||||
e.objs = &objs
|
||||
e.originMap = objs.bpfMaps.PairOriginalDstMap
|
||||
|
||||
if err := objs.bpfMaps.RedirParamsMap.Update(mapKey1, e.rtIndex, ebpf.UpdateAny); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("storing objects: %w", err)
|
||||
}
|
||||
|
||||
if err := objs.bpfMaps.RedirParamsMap.Update(mapKey2, e.redirIp, ebpf.UpdateAny); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("storing objects: %w", err)
|
||||
}
|
||||
|
||||
if err := objs.bpfMaps.RedirParamsMap.Update(mapKey3, uint32(e.redirPort), ebpf.UpdateAny); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("storing objects: %w", err)
|
||||
}
|
||||
|
||||
attrs := netlink.QdiscAttrs{
|
||||
LinkIndex: e.ifIndex,
|
||||
Handle: netlink.MakeHandle(0xffff, 0),
|
||||
Parent: netlink.HANDLE_CLSACT,
|
||||
}
|
||||
|
||||
qdisc := &netlink.GenericQdisc{
|
||||
QdiscAttrs: attrs,
|
||||
QdiscType: "clsact",
|
||||
}
|
||||
|
||||
e.qdisc = qdisc
|
||||
|
||||
if err := netlink.QdiscAdd(qdisc); err != nil {
|
||||
if os.IsExist(err) {
|
||||
_ = netlink.QdiscDel(qdisc)
|
||||
err = netlink.QdiscAdd(qdisc)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("cannot add clsact qdisc: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
filterAttrs := netlink.FilterAttrs{
|
||||
LinkIndex: e.ifIndex,
|
||||
Parent: netlink.HANDLE_MIN_INGRESS,
|
||||
Handle: netlink.MakeHandle(0, 1),
|
||||
Protocol: unix.ETH_P_IP,
|
||||
Priority: 0,
|
||||
}
|
||||
|
||||
filter := &netlink.BpfFilter{
|
||||
FilterAttrs: filterAttrs,
|
||||
Fd: objs.bpfPrograms.TcRedirIngressFunc.FD(),
|
||||
Name: "mihomo-redir-ingress-" + e.ifName,
|
||||
DirectAction: true,
|
||||
}
|
||||
|
||||
if err := netlink.FilterAdd(filter); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("cannot attach ebpf object to filter ingress: %w", err)
|
||||
}
|
||||
|
||||
e.filter = filter
|
||||
|
||||
filterAttrsEgress := netlink.FilterAttrs{
|
||||
LinkIndex: e.ifIndex,
|
||||
Parent: netlink.HANDLE_MIN_EGRESS,
|
||||
Handle: netlink.MakeHandle(0, 1),
|
||||
Protocol: unix.ETH_P_IP,
|
||||
Priority: 0,
|
||||
}
|
||||
|
||||
filterEgress := &netlink.BpfFilter{
|
||||
FilterAttrs: filterAttrsEgress,
|
||||
Fd: objs.bpfPrograms.TcRedirEgressFunc.FD(),
|
||||
Name: "mihomo-redir-egress-" + e.ifName,
|
||||
DirectAction: true,
|
||||
}
|
||||
|
||||
if err := netlink.FilterAdd(filterEgress); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("cannot attach ebpf object to filter egress: %w", err)
|
||||
}
|
||||
|
||||
e.filterEgress = filterEgress
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *EBpfRedirect) Close() {
|
||||
if e.filter != nil {
|
||||
_ = netlink.FilterDel(e.filter)
|
||||
}
|
||||
if e.filterEgress != nil {
|
||||
_ = netlink.FilterDel(e.filterEgress)
|
||||
}
|
||||
if e.qdisc != nil {
|
||||
_ = netlink.QdiscDel(e.qdisc)
|
||||
}
|
||||
if e.objs != nil {
|
||||
_ = e.objs.Close()
|
||||
}
|
||||
_ = os.Remove(filepath.Join(e.bpfPath, "redir_params_map"))
|
||||
_ = os.Remove(filepath.Join(e.bpfPath, "pair_original_dst_map"))
|
||||
}
|
||||
|
||||
func (e *EBpfRedirect) Lookup(srcAddrPort netip.AddrPort) (socks5.Addr, error) {
|
||||
rAddr := srcAddrPort.Addr().Unmap()
|
||||
if rAddr.Is6() {
|
||||
return nil, fmt.Errorf("remote address is ipv6")
|
||||
}
|
||||
|
||||
srcIp := binary.BigEndian.Uint32(rAddr.AsSlice())
|
||||
scrPort := srcAddrPort.Port()
|
||||
|
||||
key := bpfRedirInfo{
|
||||
Sip: byteorder.HostToNetwork32(srcIp),
|
||||
Sport: byteorder.HostToNetwork16(scrPort),
|
||||
Dip: byteorder.HostToNetwork32(e.redirIp),
|
||||
Dport: byteorder.HostToNetwork16(e.redirPort),
|
||||
}
|
||||
|
||||
origin := bpfOriginInfo{}
|
||||
|
||||
err := e.originMap.Lookup(key, &origin)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
addr := make([]byte, net.IPv4len+3)
|
||||
addr[0] = socks5.AtypIPv4
|
||||
|
||||
binary.BigEndian.PutUint32(addr[1:1+net.IPv4len], byteorder.NetworkToHost32(origin.Ip)) // big end
|
||||
binary.BigEndian.PutUint16(addr[1+net.IPv4len:3+net.IPv4len], byteorder.NetworkToHost16(origin.Port)) // big end
|
||||
return addr, nil
|
||||
}
|
||||
|
|
@ -1,139 +0,0 @@
|
|||
// Code generated by bpf2go; DO NOT EDIT.
|
||||
//go:build arm64be || armbe || mips || mips64 || mips64p32 || ppc64 || s390 || s390x || sparc || sparc64
|
||||
// +build arm64be armbe mips mips64 mips64p32 ppc64 s390 s390x sparc sparc64
|
||||
|
||||
package redir
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
_ "embed"
|
||||
"fmt"
|
||||
"io"
|
||||
|
||||
"github.com/cilium/ebpf"
|
||||
)
|
||||
|
||||
type bpfOriginInfo struct {
|
||||
Ip uint32
|
||||
Port uint16
|
||||
Pad uint16
|
||||
}
|
||||
|
||||
type bpfRedirInfo struct {
|
||||
Sip uint32
|
||||
Dip uint32
|
||||
Sport uint16
|
||||
Dport uint16
|
||||
}
|
||||
|
||||
// loadBpf returns the embedded CollectionSpec for bpf.
|
||||
func loadBpf() (*ebpf.CollectionSpec, error) {
|
||||
reader := bytes.NewReader(_BpfBytes)
|
||||
spec, err := ebpf.LoadCollectionSpecFromReader(reader)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("can't load bpf: %w", err)
|
||||
}
|
||||
|
||||
return spec, err
|
||||
}
|
||||
|
||||
// loadBpfObjects loads bpf and converts it into a struct.
|
||||
//
|
||||
// The following types are suitable as obj argument:
|
||||
//
|
||||
// *bpfObjects
|
||||
// *bpfPrograms
|
||||
// *bpfMaps
|
||||
//
|
||||
// See ebpf.CollectionSpec.LoadAndAssign documentation for details.
|
||||
func loadBpfObjects(obj interface{}, opts *ebpf.CollectionOptions) error {
|
||||
spec, err := loadBpf()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return spec.LoadAndAssign(obj, opts)
|
||||
}
|
||||
|
||||
// bpfSpecs contains maps and programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfSpecs struct {
|
||||
bpfProgramSpecs
|
||||
bpfMapSpecs
|
||||
}
|
||||
|
||||
// bpfSpecs contains programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfProgramSpecs struct {
|
||||
TcRedirEgressFunc *ebpf.ProgramSpec `ebpf:"tc_redir_egress_func"`
|
||||
TcRedirIngressFunc *ebpf.ProgramSpec `ebpf:"tc_redir_ingress_func"`
|
||||
}
|
||||
|
||||
// bpfMapSpecs contains maps before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfMapSpecs struct {
|
||||
PairOriginalDstMap *ebpf.MapSpec `ebpf:"pair_original_dst_map"`
|
||||
RedirParamsMap *ebpf.MapSpec `ebpf:"redir_params_map"`
|
||||
}
|
||||
|
||||
// bpfObjects contains all objects after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfObjects struct {
|
||||
bpfPrograms
|
||||
bpfMaps
|
||||
}
|
||||
|
||||
func (o *bpfObjects) Close() error {
|
||||
return _BpfClose(
|
||||
&o.bpfPrograms,
|
||||
&o.bpfMaps,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfMaps contains all maps after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfMaps struct {
|
||||
PairOriginalDstMap *ebpf.Map `ebpf:"pair_original_dst_map"`
|
||||
RedirParamsMap *ebpf.Map `ebpf:"redir_params_map"`
|
||||
}
|
||||
|
||||
func (m *bpfMaps) Close() error {
|
||||
return _BpfClose(
|
||||
m.PairOriginalDstMap,
|
||||
m.RedirParamsMap,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfPrograms contains all programs after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfPrograms struct {
|
||||
TcRedirEgressFunc *ebpf.Program `ebpf:"tc_redir_egress_func"`
|
||||
TcRedirIngressFunc *ebpf.Program `ebpf:"tc_redir_ingress_func"`
|
||||
}
|
||||
|
||||
func (p *bpfPrograms) Close() error {
|
||||
return _BpfClose(
|
||||
p.TcRedirEgressFunc,
|
||||
p.TcRedirIngressFunc,
|
||||
)
|
||||
}
|
||||
|
||||
func _BpfClose(closers ...io.Closer) error {
|
||||
for _, closer := range closers {
|
||||
if err := closer.Close(); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Do not access this directly.
|
||||
//
|
||||
//go:embed bpf_bpfeb.o
|
||||
var _BpfBytes []byte
|
||||
Binary file not shown.
|
|
@ -1,139 +0,0 @@
|
|||
// Code generated by bpf2go; DO NOT EDIT.
|
||||
//go:build 386 || amd64 || amd64p32 || arm || arm64 || mips64le || mips64p32le || mipsle || ppc64le || riscv64 || loong64
|
||||
// +build 386 amd64 amd64p32 arm arm64 mips64le mips64p32le mipsle ppc64le riscv64 loong64
|
||||
|
||||
package redir
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
_ "embed"
|
||||
"fmt"
|
||||
"io"
|
||||
|
||||
"github.com/cilium/ebpf"
|
||||
)
|
||||
|
||||
type bpfOriginInfo struct {
|
||||
Ip uint32
|
||||
Port uint16
|
||||
Pad uint16
|
||||
}
|
||||
|
||||
type bpfRedirInfo struct {
|
||||
Sip uint32
|
||||
Dip uint32
|
||||
Sport uint16
|
||||
Dport uint16
|
||||
}
|
||||
|
||||
// loadBpf returns the embedded CollectionSpec for bpf.
|
||||
func loadBpf() (*ebpf.CollectionSpec, error) {
|
||||
reader := bytes.NewReader(_BpfBytes)
|
||||
spec, err := ebpf.LoadCollectionSpecFromReader(reader)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("can't load bpf: %w", err)
|
||||
}
|
||||
|
||||
return spec, err
|
||||
}
|
||||
|
||||
// loadBpfObjects loads bpf and converts it into a struct.
|
||||
//
|
||||
// The following types are suitable as obj argument:
|
||||
//
|
||||
// *bpfObjects
|
||||
// *bpfPrograms
|
||||
// *bpfMaps
|
||||
//
|
||||
// See ebpf.CollectionSpec.LoadAndAssign documentation for details.
|
||||
func loadBpfObjects(obj interface{}, opts *ebpf.CollectionOptions) error {
|
||||
spec, err := loadBpf()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return spec.LoadAndAssign(obj, opts)
|
||||
}
|
||||
|
||||
// bpfSpecs contains maps and programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfSpecs struct {
|
||||
bpfProgramSpecs
|
||||
bpfMapSpecs
|
||||
}
|
||||
|
||||
// bpfSpecs contains programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfProgramSpecs struct {
|
||||
TcRedirEgressFunc *ebpf.ProgramSpec `ebpf:"tc_redir_egress_func"`
|
||||
TcRedirIngressFunc *ebpf.ProgramSpec `ebpf:"tc_redir_ingress_func"`
|
||||
}
|
||||
|
||||
// bpfMapSpecs contains maps before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfMapSpecs struct {
|
||||
PairOriginalDstMap *ebpf.MapSpec `ebpf:"pair_original_dst_map"`
|
||||
RedirParamsMap *ebpf.MapSpec `ebpf:"redir_params_map"`
|
||||
}
|
||||
|
||||
// bpfObjects contains all objects after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfObjects struct {
|
||||
bpfPrograms
|
||||
bpfMaps
|
||||
}
|
||||
|
||||
func (o *bpfObjects) Close() error {
|
||||
return _BpfClose(
|
||||
&o.bpfPrograms,
|
||||
&o.bpfMaps,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfMaps contains all maps after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfMaps struct {
|
||||
PairOriginalDstMap *ebpf.Map `ebpf:"pair_original_dst_map"`
|
||||
RedirParamsMap *ebpf.Map `ebpf:"redir_params_map"`
|
||||
}
|
||||
|
||||
func (m *bpfMaps) Close() error {
|
||||
return _BpfClose(
|
||||
m.PairOriginalDstMap,
|
||||
m.RedirParamsMap,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfPrograms contains all programs after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfPrograms struct {
|
||||
TcRedirEgressFunc *ebpf.Program `ebpf:"tc_redir_egress_func"`
|
||||
TcRedirIngressFunc *ebpf.Program `ebpf:"tc_redir_ingress_func"`
|
||||
}
|
||||
|
||||
func (p *bpfPrograms) Close() error {
|
||||
return _BpfClose(
|
||||
p.TcRedirEgressFunc,
|
||||
p.TcRedirIngressFunc,
|
||||
)
|
||||
}
|
||||
|
||||
func _BpfClose(closers ...io.Closer) error {
|
||||
for _, closer := range closers {
|
||||
if err := closer.Close(); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Do not access this directly.
|
||||
//
|
||||
//go:embed bpf_bpfel.o
|
||||
var _BpfBytes []byte
|
||||
Binary file not shown.
|
|
@ -1,120 +0,0 @@
|
|||
// Code generated by bpf2go; DO NOT EDIT.
|
||||
//go:build arm64be || armbe || mips || mips64 || mips64p32 || ppc64 || s390 || s390x || sparc || sparc64
|
||||
// +build arm64be armbe mips mips64 mips64p32 ppc64 s390 s390x sparc sparc64
|
||||
|
||||
package tc
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
_ "embed"
|
||||
"fmt"
|
||||
"io"
|
||||
|
||||
"github.com/cilium/ebpf"
|
||||
)
|
||||
|
||||
// loadBpf returns the embedded CollectionSpec for bpf.
|
||||
func loadBpf() (*ebpf.CollectionSpec, error) {
|
||||
reader := bytes.NewReader(_BpfBytes)
|
||||
spec, err := ebpf.LoadCollectionSpecFromReader(reader)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("can't load bpf: %w", err)
|
||||
}
|
||||
|
||||
return spec, err
|
||||
}
|
||||
|
||||
// loadBpfObjects loads bpf and converts it into a struct.
|
||||
//
|
||||
// The following types are suitable as obj argument:
|
||||
//
|
||||
// *bpfObjects
|
||||
// *bpfPrograms
|
||||
// *bpfMaps
|
||||
//
|
||||
// See ebpf.CollectionSpec.LoadAndAssign documentation for details.
|
||||
func loadBpfObjects(obj interface{}, opts *ebpf.CollectionOptions) error {
|
||||
spec, err := loadBpf()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return spec.LoadAndAssign(obj, opts)
|
||||
}
|
||||
|
||||
// bpfSpecs contains maps and programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfSpecs struct {
|
||||
bpfProgramSpecs
|
||||
bpfMapSpecs
|
||||
}
|
||||
|
||||
// bpfSpecs contains programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfProgramSpecs struct {
|
||||
TcTunFunc *ebpf.ProgramSpec `ebpf:"tc_tun_func"`
|
||||
}
|
||||
|
||||
// bpfMapSpecs contains maps before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfMapSpecs struct {
|
||||
TcParamsMap *ebpf.MapSpec `ebpf:"tc_params_map"`
|
||||
}
|
||||
|
||||
// bpfObjects contains all objects after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfObjects struct {
|
||||
bpfPrograms
|
||||
bpfMaps
|
||||
}
|
||||
|
||||
func (o *bpfObjects) Close() error {
|
||||
return _BpfClose(
|
||||
&o.bpfPrograms,
|
||||
&o.bpfMaps,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfMaps contains all maps after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfMaps struct {
|
||||
TcParamsMap *ebpf.Map `ebpf:"tc_params_map"`
|
||||
}
|
||||
|
||||
func (m *bpfMaps) Close() error {
|
||||
return _BpfClose(
|
||||
m.TcParamsMap,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfPrograms contains all programs after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfPrograms struct {
|
||||
TcTunFunc *ebpf.Program `ebpf:"tc_tun_func"`
|
||||
}
|
||||
|
||||
func (p *bpfPrograms) Close() error {
|
||||
return _BpfClose(
|
||||
p.TcTunFunc,
|
||||
)
|
||||
}
|
||||
|
||||
func _BpfClose(closers ...io.Closer) error {
|
||||
for _, closer := range closers {
|
||||
if err := closer.Close(); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Do not access this directly.
|
||||
//
|
||||
//go:embed bpf_bpfeb.o
|
||||
var _BpfBytes []byte
|
||||
Binary file not shown.
|
|
@ -1,120 +0,0 @@
|
|||
//
|
||||
//go:build 386 || amd64 || amd64p32 || arm || arm64 || mips64le || mips64p32le || mipsle || ppc64le || riscv64 || loong64
|
||||
// +build 386 amd64 amd64p32 arm arm64 mips64le mips64p32le mipsle ppc64le riscv64 loong64
|
||||
|
||||
package tc
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
_ "embed"
|
||||
"fmt"
|
||||
"io"
|
||||
|
||||
"github.com/cilium/ebpf"
|
||||
)
|
||||
|
||||
// loadBpf returns the embedded CollectionSpec for bpf.
|
||||
func loadBpf() (*ebpf.CollectionSpec, error) {
|
||||
reader := bytes.NewReader(_BpfBytes)
|
||||
spec, err := ebpf.LoadCollectionSpecFromReader(reader)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("can't load bpf: %w", err)
|
||||
}
|
||||
|
||||
return spec, err
|
||||
}
|
||||
|
||||
// loadBpfObjects loads bpf and converts it into a struct.
|
||||
//
|
||||
// The following types are suitable as obj argument:
|
||||
//
|
||||
// *bpfObjects
|
||||
// *bpfPrograms
|
||||
// *bpfMaps
|
||||
//
|
||||
// See ebpf.CollectionSpec.LoadAndAssign documentation for details.
|
||||
func loadBpfObjects(obj interface{}, opts *ebpf.CollectionOptions) error {
|
||||
spec, err := loadBpf()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return spec.LoadAndAssign(obj, opts)
|
||||
}
|
||||
|
||||
// bpfSpecs contains maps and programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfSpecs struct {
|
||||
bpfProgramSpecs
|
||||
bpfMapSpecs
|
||||
}
|
||||
|
||||
// bpfSpecs contains programs before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfProgramSpecs struct {
|
||||
TcTunFunc *ebpf.ProgramSpec `ebpf:"tc_tun_func"`
|
||||
}
|
||||
|
||||
// bpfMapSpecs contains maps before they are loaded into the kernel.
|
||||
//
|
||||
// It can be passed ebpf.CollectionSpec.Assign.
|
||||
type bpfMapSpecs struct {
|
||||
TcParamsMap *ebpf.MapSpec `ebpf:"tc_params_map"`
|
||||
}
|
||||
|
||||
// bpfObjects contains all objects after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfObjects struct {
|
||||
bpfPrograms
|
||||
bpfMaps
|
||||
}
|
||||
|
||||
func (o *bpfObjects) Close() error {
|
||||
return _BpfClose(
|
||||
&o.bpfPrograms,
|
||||
&o.bpfMaps,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfMaps contains all maps after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfMaps struct {
|
||||
TcParamsMap *ebpf.Map `ebpf:"tc_params_map"`
|
||||
}
|
||||
|
||||
func (m *bpfMaps) Close() error {
|
||||
return _BpfClose(
|
||||
m.TcParamsMap,
|
||||
)
|
||||
}
|
||||
|
||||
// bpfPrograms contains all programs after they have been loaded into the kernel.
|
||||
//
|
||||
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
|
||||
type bpfPrograms struct {
|
||||
TcTunFunc *ebpf.Program `ebpf:"tc_tun_func"`
|
||||
}
|
||||
|
||||
func (p *bpfPrograms) Close() error {
|
||||
return _BpfClose(
|
||||
p.TcTunFunc,
|
||||
)
|
||||
}
|
||||
|
||||
func _BpfClose(closers ...io.Closer) error {
|
||||
for _, closer := range closers {
|
||||
if err := closer.Close(); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Do not access this directly.
|
||||
//
|
||||
//go:embed bpf_bpfel.o
|
||||
var _BpfBytes []byte
|
||||
Binary file not shown.
|
|
@ -1,147 +0,0 @@
|
|||
//go:build linux
|
||||
|
||||
package tc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"net/netip"
|
||||
"os"
|
||||
"path/filepath"
|
||||
|
||||
"github.com/cilium/ebpf"
|
||||
"github.com/cilium/ebpf/rlimit"
|
||||
"github.com/sagernet/netlink"
|
||||
"golang.org/x/sys/unix"
|
||||
|
||||
C "github.com/metacubex/mihomo/constant"
|
||||
"github.com/metacubex/mihomo/transport/socks5"
|
||||
)
|
||||
|
||||
//go:generate go run github.com/cilium/ebpf/cmd/bpf2go -cc $BPF_CLANG -cflags $BPF_CFLAGS bpf ../bpf/tc.c
|
||||
|
||||
const (
|
||||
mapKey1 uint32 = 0
|
||||
mapKey2 uint32 = 1
|
||||
)
|
||||
|
||||
type EBpfTC struct {
|
||||
objs io.Closer
|
||||
qdisc netlink.Qdisc
|
||||
filter netlink.Filter
|
||||
|
||||
ifName string
|
||||
ifIndex int
|
||||
ifMark uint32
|
||||
tunIfIndex uint32
|
||||
|
||||
bpfPath string
|
||||
}
|
||||
|
||||
func NewEBpfTc(ifName string, ifIndex int, ifMark uint32, tunIfIndex uint32) *EBpfTC {
|
||||
return &EBpfTC{
|
||||
ifName: ifName,
|
||||
ifIndex: ifIndex,
|
||||
ifMark: ifMark,
|
||||
tunIfIndex: tunIfIndex,
|
||||
}
|
||||
}
|
||||
|
||||
func (e *EBpfTC) Start() error {
|
||||
if err := rlimit.RemoveMemlock(); err != nil {
|
||||
return fmt.Errorf("remove memory lock: %w", err)
|
||||
}
|
||||
|
||||
e.bpfPath = filepath.Join(C.BpfFSPath, e.ifName)
|
||||
if err := os.MkdirAll(e.bpfPath, os.ModePerm); err != nil {
|
||||
return fmt.Errorf("failed to create bpf fs subpath: %w", err)
|
||||
}
|
||||
|
||||
var objs bpfObjects
|
||||
if err := loadBpfObjects(&objs, &ebpf.CollectionOptions{
|
||||
Maps: ebpf.MapOptions{
|
||||
PinPath: e.bpfPath,
|
||||
},
|
||||
}); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("loading objects: %w", err)
|
||||
}
|
||||
|
||||
e.objs = &objs
|
||||
|
||||
if err := objs.bpfMaps.TcParamsMap.Update(mapKey1, e.ifMark, ebpf.UpdateAny); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("storing objects: %w", err)
|
||||
}
|
||||
|
||||
if err := objs.bpfMaps.TcParamsMap.Update(mapKey2, e.tunIfIndex, ebpf.UpdateAny); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("storing objects: %w", err)
|
||||
}
|
||||
|
||||
attrs := netlink.QdiscAttrs{
|
||||
LinkIndex: e.ifIndex,
|
||||
Handle: netlink.MakeHandle(0xffff, 0),
|
||||
Parent: netlink.HANDLE_CLSACT,
|
||||
}
|
||||
|
||||
qdisc := &netlink.GenericQdisc{
|
||||
QdiscAttrs: attrs,
|
||||
QdiscType: "clsact",
|
||||
}
|
||||
|
||||
e.qdisc = qdisc
|
||||
|
||||
if err := netlink.QdiscAdd(qdisc); err != nil {
|
||||
if os.IsExist(err) {
|
||||
_ = netlink.QdiscDel(qdisc)
|
||||
err = netlink.QdiscAdd(qdisc)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("cannot add clsact qdisc: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
filterAttrs := netlink.FilterAttrs{
|
||||
LinkIndex: e.ifIndex,
|
||||
Parent: netlink.HANDLE_MIN_EGRESS,
|
||||
Handle: netlink.MakeHandle(0, 1),
|
||||
Protocol: unix.ETH_P_ALL,
|
||||
Priority: 1,
|
||||
}
|
||||
|
||||
filter := &netlink.BpfFilter{
|
||||
FilterAttrs: filterAttrs,
|
||||
Fd: objs.bpfPrograms.TcTunFunc.FD(),
|
||||
Name: "mihomo-tc-" + e.ifName,
|
||||
DirectAction: true,
|
||||
}
|
||||
|
||||
if err := netlink.FilterAdd(filter); err != nil {
|
||||
e.Close()
|
||||
return fmt.Errorf("cannot attach ebpf object to filter: %w", err)
|
||||
}
|
||||
|
||||
e.filter = filter
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *EBpfTC) Close() {
|
||||
if e.filter != nil {
|
||||
_ = netlink.FilterDel(e.filter)
|
||||
}
|
||||
if e.qdisc != nil {
|
||||
_ = netlink.QdiscDel(e.qdisc)
|
||||
}
|
||||
if e.objs != nil {
|
||||
_ = e.objs.Close()
|
||||
}
|
||||
_ = os.Remove(filepath.Join(e.bpfPath, "tc_params_map"))
|
||||
}
|
||||
|
||||
func (e *EBpfTC) Lookup(_ netip.AddrPort) (socks5.Addr, error) {
|
||||
return nil, fmt.Errorf("not supported")
|
||||
}
|
||||
|
|
@ -66,7 +66,6 @@ type General struct {
|
|||
TCPConcurrent bool `json:"tcp-concurrent"`
|
||||
FindProcessMode P.FindProcessMode `json:"find-process-mode"`
|
||||
Sniffing bool `json:"sniffing"`
|
||||
EBpf EBpf `json:"-"`
|
||||
GlobalClientFingerprint string `json:"global-client-fingerprint"`
|
||||
GlobalUA string `json:"global-ua"`
|
||||
}
|
||||
|
|
@ -343,7 +342,6 @@ type RawConfig struct {
|
|||
DNS RawDNS `yaml:"dns" json:"dns"`
|
||||
Tun RawTun `yaml:"tun"`
|
||||
TuicServer RawTuicServer `yaml:"tuic-server"`
|
||||
EBpf EBpf `yaml:"ebpf"`
|
||||
IPTables IPTables `yaml:"iptables"`
|
||||
Experimental Experimental `yaml:"experimental"`
|
||||
Profile Profile `yaml:"profile"`
|
||||
|
|
@ -382,12 +380,6 @@ type RawSniffingConfig struct {
|
|||
OverrideDest *bool `yaml:"override-destination" json:"override-destination"`
|
||||
}
|
||||
|
||||
// EBpf config
|
||||
type EBpf struct {
|
||||
RedirectToTun []string `yaml:"redirect-to-tun" json:"redirect-to-tun"`
|
||||
AutoRedir []string `yaml:"auto-redir" json:"auto-redir"`
|
||||
}
|
||||
|
||||
var (
|
||||
GroupsList = list.New()
|
||||
ProxiesList = list.New()
|
||||
|
|
@ -448,10 +440,6 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
|
|||
ALPN: []string{"h3"},
|
||||
MaxUdpRelayPacketSize: 1500,
|
||||
},
|
||||
EBpf: EBpf{
|
||||
RedirectToTun: []string{},
|
||||
AutoRedir: []string{},
|
||||
},
|
||||
IPTables: IPTables{
|
||||
Enable: false,
|
||||
InboundInterface: "lo",
|
||||
|
|
@ -720,7 +708,6 @@ func parseGeneral(cfg *RawConfig) (*General, error) {
|
|||
GeodataLoader: cfg.GeodataLoader,
|
||||
TCPConcurrent: cfg.TCPConcurrent,
|
||||
FindProcessMode: cfg.FindProcessMode,
|
||||
EBpf: cfg.EBpf,
|
||||
GlobalClientFingerprint: cfg.GlobalClientFingerprint,
|
||||
GlobalUA: cfg.GlobalUA,
|
||||
}, nil
|
||||
|
|
|
|||
|
|
@ -1,20 +0,0 @@
|
|||
package constant
|
||||
|
||||
import (
|
||||
"net/netip"
|
||||
|
||||
"github.com/metacubex/mihomo/transport/socks5"
|
||||
)
|
||||
|
||||
const (
|
||||
BpfFSPath = "/sys/fs/bpf/mihomo"
|
||||
|
||||
TcpAutoRedirPort = 't'<<8 | 'r'<<0
|
||||
MihomoTrafficMark = 'c'<<24 | 'l'<<16 | 't'<<8 | 'm'<<0
|
||||
)
|
||||
|
||||
type EBpf interface {
|
||||
Start() error
|
||||
Close()
|
||||
Lookup(srcAddrPort netip.AddrPort) (socks5.Addr, error)
|
||||
}
|
||||
|
|
@ -166,13 +166,6 @@ tun:
|
|||
# exclude-package: # 排除被路由的 Android 应用包名
|
||||
# - com.android.captiveportallogin
|
||||
|
||||
#ebpf 配置
|
||||
ebpf:
|
||||
auto-redir: # redirect 模式，仅支持 TCP
|
||||
- eth0
|
||||
redirect-to-tun: # UDP+TCP 使用该功能请勿启用 auto-route
|
||||
- eth0
|
||||
|
||||
# 嗅探域名 可选配置
|
||||
sniffer:
|
||||
enable: false
|
||||
|
|
|
|||
2
go.mod
2
go.mod
|
|
@ -5,7 +5,6 @@ go 1.20
|
|||
require (
|
||||
github.com/3andne/restls-client-go v0.1.6
|
||||
github.com/bahlo/generic-list-go v0.2.0
|
||||
github.com/cilium/ebpf v0.12.3
|
||||
github.com/coreos/go-iptables v0.7.0
|
||||
github.com/dlclark/regexp2 v1.11.4
|
||||
github.com/go-chi/chi/v5 v5.1.0
|
||||
|
|
@ -82,6 +81,7 @@ require (
|
|||
github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38 // indirect
|
||||
github.com/hashicorp/yamux v0.1.1 // indirect
|
||||
github.com/josharian/native v1.1.0 // indirect
|
||||
github.com/kr/text v0.2.0 // indirect
|
||||
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
|
||||
github.com/mailru/easyjson v0.7.7 // indirect
|
||||
github.com/mdlayher/socket v0.4.1 // indirect
|
||||
|
|
|
|||
8
go.sum
8
go.sum
|
|
@ -17,12 +17,11 @@ github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx2
|
|||
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
|
||||
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
|
||||
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
|
||||
github.com/cilium/ebpf v0.12.3 h1:8ht6F9MquybnY97at+VDZb3eQQr8ev79RueWeVaEcG4=
|
||||
github.com/cilium/ebpf v0.12.3/go.mod h1:TctK1ivibvI3znr66ljgi4hqOT8EYQjz1KWBfb1UVgM=
|
||||
github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU=
|
||||
github.com/cloudflare/circl v1.3.7/go.mod h1:sRTcRWXGLrKw6yIGJ+l7amYJFfAXbZG0kBSc8r4zxgA=
|
||||
github.com/coreos/go-iptables v0.7.0 h1:XWM3V+MPRr5/q51NuWSgU0fqMad64Zyxs8ZUoMsamr8=
|
||||
github.com/coreos/go-iptables v0.7.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q=
|
||||
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
|
|
@ -37,7 +36,6 @@ github.com/ericlagergren/siv v0.0.0-20220507050439-0b757b3aa5f1 h1:tlDMEdcPRQKBE
|
|||
github.com/ericlagergren/siv v0.0.0-20220507050439-0b757b3aa5f1/go.mod h1:4RfsapbGx2j/vU5xC/5/9qB3kn9Awp1YDiEnN43QrJ4=
|
||||
github.com/ericlagergren/subtle v0.0.0-20220507045147-890d697da010 h1:fuGucgPk5dN6wzfnxl3D0D3rVLw4v2SbBT9jb4VnxzA=
|
||||
github.com/ericlagergren/subtle v0.0.0-20220507045147-890d697da010/go.mod h1:JtBcj7sBuTTRupn7c2bFspMDIObMJsVK8TeUvpShPok=
|
||||
github.com/frankban/quicktest v1.14.5 h1:dfYrrRyLtiqT9GyKXgdh+k4inNeTvmGbuSgZ3lx3GhA=
|
||||
github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
|
||||
github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
|
||||
github.com/gaukas/godicttls v0.0.4 h1:NlRaXb3J6hAnTmWdsEKb9bcSBD6BvcIjdGdeb0zfXbk=
|
||||
|
|
@ -85,8 +83,9 @@ github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2
|
|||
github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
|
||||
github.com/klauspost/cpuid/v2 v2.2.8 h1:+StwCXwm9PdpiEkPyzBXIy+M9KUb4ODm0Zarf1kS5BM=
|
||||
github.com/klauspost/cpuid/v2 v2.2.8/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
|
||||
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
|
||||
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
|
||||
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
|
||||
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
|
||||
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
|
||||
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
|
||||
github.com/lunixbochs/struc v0.0.0-20200707160740-784aaebc1d40 h1:EnfXoSqDfSNJv0VBNqY/88RNnhSGYkrHaO0mmFGbVsc=
|
||||
|
|
@ -155,7 +154,6 @@ github.com/quic-go/qpack v0.4.0 h1:Cr9BXA1sQS2SmDUWjSofMPNKmvF6IiIfDRmgU0w1ZCo=
|
|||
github.com/quic-go/qpack v0.4.0/go.mod h1:UZVnYIfi5GRk+zI9UMaCPsmZ2xKJP7XBUvVyT1Knj9A=
|
||||
github.com/quic-go/qtls-go1-20 v0.4.1 h1:D33340mCNDAIKBqXuAvexTNMUByrYmFYVfKfDN5nfFs=
|
||||
github.com/quic-go/qtls-go1-20 v0.4.1/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
|
||||
github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
|
||||
github.com/sagernet/bbolt v0.0.0-20231014093535-ea5cb2fe9f0a h1:+NkI2670SQpQWvkkD2QgdTuzQG263YZ+2emfpeyGqW0=
|
||||
github.com/sagernet/bbolt v0.0.0-20231014093535-ea5cb2fe9f0a/go.mod h1:63s7jpZqcDAIpj8oI/1v4Izok+npJOHACFCU6+huCkM=
|
||||
github.com/sagernet/fswatch v0.1.1 h1:YqID+93B7VRfqIH3PArW/XpJv5H4OLEVWDfProGoRQs=
|
||||
|
|
|
|||
|
|
@ -26,7 +26,6 @@ import (
|
|||
"github.com/metacubex/mihomo/component/updater"
|
||||
"github.com/metacubex/mihomo/config"
|
||||
C "github.com/metacubex/mihomo/constant"
|
||||
"github.com/metacubex/mihomo/constant/features"
|
||||
"github.com/metacubex/mihomo/constant/provider"
|
||||
"github.com/metacubex/mihomo/dns"
|
||||
"github.com/metacubex/mihomo/listener"
|
||||
|
|
@ -182,9 +181,6 @@ func updateListeners(general *config.General, listeners map[string]C.InboundList
|
|||
listener.ReCreateHTTP(general.Port, tunnel.Tunnel)
|
||||
listener.ReCreateSocks(general.SocksPort, tunnel.Tunnel)
|
||||
listener.ReCreateRedir(general.RedirPort, tunnel.Tunnel)
|
||||
if !features.CMFA {
|
||||
listener.ReCreateAutoRedir(general.EBpf.AutoRedir, tunnel.Tunnel)
|
||||
}
|
||||
listener.ReCreateTProxy(general.TProxyPort, tunnel.Tunnel)
|
||||
listener.ReCreateMixed(general.MixedPort, tunnel.Tunnel)
|
||||
listener.ReCreateShadowSocks(general.ShadowSocksConfig, tunnel.Tunnel)
|
||||
|
|
@ -352,7 +348,6 @@ func updateTun(general *config.General) {
|
|||
return
|
||||
}
|
||||
listener.ReCreateTun(general.Tun, tunnel.Tunnel)
|
||||
listener.ReCreateRedirToTun(general.EBpf.RedirectToTun)
|
||||
}
|
||||
|
||||
func updateSniffer(sniffer *config.Sniffer) {
|
||||
|
|
|
|||
|
|
@ -1,95 +0,0 @@
|
|||
package autoredir
|
||||
|
||||
import (
|
||||
"net"
|
||||
"net/netip"
|
||||
|
||||
"github.com/metacubex/mihomo/adapter/inbound"
|
||||
N "github.com/metacubex/mihomo/common/net"
|
||||
C "github.com/metacubex/mihomo/constant"
|
||||
"github.com/metacubex/mihomo/log"
|
||||
"github.com/metacubex/mihomo/transport/socks5"
|
||||
)
|
||||
|
||||
type Listener struct {
|
||||
listener net.Listener
|
||||
addr string
|
||||
closed bool
|
||||
additions []inbound.Addition
|
||||
lookupFunc func(netip.AddrPort) (socks5.Addr, error)
|
||||
}
|
||||
|
||||
// RawAddress implements C.Listener
|
||||
func (l *Listener) RawAddress() string {
|
||||
return l.addr
|
||||
}
|
||||
|
||||
// Address implements C.Listener
|
||||
func (l *Listener) Address() string {
|
||||
return l.listener.Addr().String()
|
||||
}
|
||||
|
||||
// Close implements C.Listener
|
||||
func (l *Listener) Close() error {
|
||||
l.closed = true
|
||||
return l.listener.Close()
|
||||
}
|
||||
|
||||
func (l *Listener) TCPAddr() netip.AddrPort {
|
||||
return l.listener.Addr().(*net.TCPAddr).AddrPort()
|
||||
}
|
||||
|
||||
func (l *Listener) SetLookupFunc(lookupFunc func(netip.AddrPort) (socks5.Addr, error)) {
|
||||
l.lookupFunc = lookupFunc
|
||||
}
|
||||
|
||||
func (l *Listener) handleRedir(conn net.Conn, tunnel C.Tunnel) {
|
||||
if l.lookupFunc == nil {
|
||||
log.Errorln("[Auto Redirect] lookup function is nil")
|
||||
return
|
||||
}
|
||||
|
||||
target, err := l.lookupFunc(conn.RemoteAddr().(*net.TCPAddr).AddrPort())
|
||||
if err != nil {
|
||||
log.Warnln("[Auto Redirect] %v", err)
|
||||
_ = conn.Close()
|
||||
return
|
||||
}
|
||||
|
||||
N.TCPKeepAlive(conn)
|
||||
|
||||
tunnel.HandleTCPConn(inbound.NewSocket(target, conn, C.REDIR, l.additions...))
|
||||
}
|
||||
|
||||
func New(addr string, tunnel C.Tunnel, additions ...inbound.Addition) (*Listener, error) {
|
||||
if len(additions) == 0 {
|
||||
additions = []inbound.Addition{
|
||||
inbound.WithInName("DEFAULT-REDIR"),
|
||||
inbound.WithSpecialRules(""),
|
||||
}
|
||||
}
|
||||
l, err := net.Listen("tcp", addr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
rl := &Listener{
|
||||
listener: l,
|
||||
addr: addr,
|
||||
additions: additions,
|
||||
}
|
||||
|
||||
go func() {
|
||||
for {
|
||||
c, err := l.Accept()
|
||||
if err != nil {
|
||||
if rl.closed {
|
||||
break
|
||||
}
|
||||
continue
|
||||
}
|
||||
go rl.handleRedir(c, tunnel)
|
||||
}
|
||||
}()
|
||||
|
||||
return rl, nil
|
||||
}
|
||||
|
|
@ -9,9 +9,7 @@ import (
|
|||
"strings"
|
||||
"sync"
|
||||
|
||||
"github.com/metacubex/mihomo/component/ebpf"
|
||||
C "github.com/metacubex/mihomo/constant"
|
||||
"github.com/metacubex/mihomo/listener/autoredir"
|
||||
LC "github.com/metacubex/mihomo/listener/config"
|
||||
"github.com/metacubex/mihomo/listener/http"
|
||||
"github.com/metacubex/mihomo/listener/mixed"
|
||||
|
|
@ -49,9 +47,6 @@ var (
|
|||
shadowSocksListener C.MultiAddrListener
|
||||
vmessListener *sing_vmess.Listener
|
||||
tuicListener *tuic.Listener
|
||||
autoRedirListener *autoredir.Listener
|
||||
autoRedirProgram *ebpf.TcEBpfProgram
|
||||
tcProgram *ebpf.TcEBpfProgram
|
||||
|
||||
// lock for recreate function
|
||||
socksMux sync.Mutex
|
||||
|
|
@ -540,95 +535,6 @@ func ReCreateTun(tunConf LC.Tun, tunnel C.Tunnel) {
|
|||
log.Infoln("[TUN] Tun adapter listening at: %s", tunLister.Address())
|
||||
}
|
||||
|
||||
func ReCreateRedirToTun(ifaceNames []string) {
|
||||
tcMux.Lock()
|
||||
defer tcMux.Unlock()
|
||||
|
||||
nicArr := ifaceNames
|
||||
slices.Sort(nicArr)
|
||||
nicArr = slices.Compact(nicArr)
|
||||
|
||||
if tcProgram != nil {
|
||||
tcProgram.Close()
|
||||
tcProgram = nil
|
||||
}
|
||||
|
||||
if len(nicArr) == 0 {
|
||||
return
|
||||
}
|
||||
|
||||
tunConf := GetTunConf()
|
||||
|
||||
if !tunConf.Enable {
|
||||
return
|
||||
}
|
||||
|
||||
program, err := ebpf.NewTcEBpfProgram(nicArr, tunConf.Device)
|
||||
if err != nil {
|
||||
log.Errorln("Attached tc ebpf program error: %v", err)
|
||||
return
|
||||
}
|
||||
tcProgram = program
|
||||
|
||||
log.Infoln("Attached tc ebpf program to interfaces %v", tcProgram.RawNICs())
|
||||
}
|
||||
|
||||
func ReCreateAutoRedir(ifaceNames []string, tunnel C.Tunnel) {
|
||||
autoRedirMux.Lock()
|
||||
defer autoRedirMux.Unlock()
|
||||
|
||||
var err error
|
||||
defer func() {
|
||||
if err != nil {
|
||||
if autoRedirListener != nil {
|
||||
_ = autoRedirListener.Close()
|
||||
autoRedirListener = nil
|
||||
}
|
||||
if autoRedirProgram != nil {
|
||||
autoRedirProgram.Close()
|
||||
autoRedirProgram = nil
|
||||
}
|
||||
log.Errorln("Start auto redirect server error: %s", err.Error())
|
||||
}
|
||||
}()
|
||||
|
||||
nicArr := ifaceNames
|
||||
slices.Sort(nicArr)
|
||||
nicArr = slices.Compact(nicArr)
|
||||
|
||||
if autoRedirListener != nil && autoRedirProgram != nil {
|
||||
_ = autoRedirListener.Close()
|
||||
autoRedirProgram.Close()
|
||||
autoRedirListener = nil
|
||||
autoRedirProgram = nil
|
||||
}
|
||||
|
||||
if len(nicArr) == 0 {
|
||||
return
|
||||
}
|
||||
|
||||
defaultRouteInterfaceName, err := ebpf.GetAutoDetectInterface()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
addr := genAddr("*", C.TcpAutoRedirPort, true)
|
||||
|
||||
autoRedirListener, err = autoredir.New(addr, tunnel)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
autoRedirProgram, err = ebpf.NewRedirEBpfProgram(nicArr, autoRedirListener.TCPAddr().Port(), defaultRouteInterfaceName)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
autoRedirListener.SetLookupFunc(autoRedirProgram.Lookup)
|
||||
|
||||
log.Infoln("Auto redirect proxy listening at: %s, attached tc ebpf program to interfaces %v", autoRedirListener.Address(), autoRedirProgram.RawNICs())
|
||||
}
|
||||
|
||||
func PatchTunnel(tunnels []LC.Tunnel, tunnel C.Tunnel) {
|
||||
tunnelMux.Lock()
|
||||
defer tunnelMux.Unlock()
|
||||
|
|
|
|||
|
|
@ -22,7 +22,6 @@ require (
|
|||
github.com/andybalholm/brotli v1.0.5 // indirect
|
||||
github.com/bahlo/generic-list-go v0.2.0 // indirect
|
||||
github.com/buger/jsonparser v1.1.1 // indirect
|
||||
github.com/cilium/ebpf v0.12.3 // indirect
|
||||
github.com/coreos/go-iptables v0.7.0 // indirect
|
||||
github.com/davecgh/go-spew v1.1.1 // indirect
|
||||
github.com/distribution/reference v0.5.0 // indirect
|
||||
|
|
|
|||
|
|
@ -19,8 +19,6 @@ github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx2
|
|||
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
|
||||
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
|
||||
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
|
||||
github.com/cilium/ebpf v0.12.3 h1:8ht6F9MquybnY97at+VDZb3eQQr8ev79RueWeVaEcG4=
|
||||
github.com/cilium/ebpf v0.12.3/go.mod h1:TctK1ivibvI3znr66ljgi4hqOT8EYQjz1KWBfb1UVgM=
|
||||
github.com/coreos/go-iptables v0.7.0 h1:XWM3V+MPRr5/q51NuWSgU0fqMad64Zyxs8ZUoMsamr8=
|
||||
github.com/coreos/go-iptables v0.7.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user