Add header containing bpfilter structures definitions, for test purposes.
Co-developed-by: Dmitrii Banshchikov me@ubique.spb.ru Signed-off-by: Dmitrii Banshchikov me@ubique.spb.ru Signed-off-by: Quentin Deslandes qde@naccy.de --- tools/include/uapi/linux/bpfilter.h | 175 ++++++++++++++++++++++++++++ 1 file changed, 175 insertions(+) create mode 100644 tools/include/uapi/linux/bpfilter.h
diff --git a/tools/include/uapi/linux/bpfilter.h b/tools/include/uapi/linux/bpfilter.h new file mode 100644 index 000000000000..295fd9caa3c8 --- /dev/null +++ b/tools/include/uapi/linux/bpfilter.h @@ -0,0 +1,175 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _UAPI_LINUX_BPFILTER_H +#define _UAPI_LINUX_BPFILTER_H + +#include <linux/if.h> +#include <linux/const.h> + +#define BPFILTER_STANDARD_TARGET "" +#define BPFILTER_ERROR_TARGET "ERROR" + +enum { + BPFILTER_IPT_SO_SET_REPLACE = 64, + BPFILTER_IPT_SO_SET_ADD_COUNTERS = 65, + BPFILTER_IPT_SET_MAX, +}; + +enum { + BPFILTER_IPT_SO_GET_INFO = 64, + BPFILTER_IPT_SO_GET_ENTRIES = 65, + BPFILTER_IPT_SO_GET_REVISION_MATCH = 66, + BPFILTER_IPT_SO_GET_REVISION_TARGET = 67, + BPFILTER_IPT_GET_MAX, +}; + +enum { + BPFILTER_XT_TABLE_MAXNAMELEN = 32, + BPFILTER_FUNCTION_MAXNAMELEN = 30, + BPFILTER_EXTENSION_MAXNAMELEN = 29, +}; + +enum { + BPFILTER_NF_DROP = 0, + BPFILTER_NF_ACCEPT = 1, + BPFILTER_NF_STOLEN = 2, + BPFILTER_NF_QUEUE = 3, + BPFILTER_NF_REPEAT = 4, + BPFILTER_NF_STOP = 5, + BPFILTER_NF_MAX_VERDICT = BPFILTER_NF_STOP, + BPFILTER_RETURN = (-BPFILTER_NF_REPEAT - 1), +}; + +enum { + BPFILTER_INET_HOOK_PRE_ROUTING = 0, + BPFILTER_INET_HOOK_LOCAL_IN = 1, + BPFILTER_INET_HOOK_FORWARD = 2, + BPFILTER_INET_HOOK_LOCAL_OUT = 3, + BPFILTER_INET_HOOK_POST_ROUTING = 4, + BPFILTER_INET_HOOK_MAX, +}; + +enum { + BPFILTER_IPT_F_MASK = 0x03, + BPFILTER_IPT_INV_MASK = 0x7f +}; + +struct bpfilter_ipt_match { + union { + struct { + __u16 match_size; + char name[BPFILTER_EXTENSION_MAXNAMELEN]; + __u8 revision; + } user; + struct { + __u16 match_size; + void *match; + } kernel; + __u16 match_size; + } u; + unsigned char data[]; +}; + +struct bpfilter_ipt_target { + union { + struct { + __u16 target_size; + char name[BPFILTER_EXTENSION_MAXNAMELEN]; + __u8 revision; + } user; + struct { + __u16 target_size; + void *target; + } kernel; + __u16 target_size; + } u; + unsigned char data[]; +}; + +struct bpfilter_ipt_standard_target { + struct bpfilter_ipt_target target; + int verdict; +}; + +struct bpfilter_ipt_error_target { + struct bpfilter_ipt_target target; + char error_name[BPFILTER_FUNCTION_MAXNAMELEN]; +}; + +struct bpfilter_ipt_get_info { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 valid_hooks; + __u32 hook_entry[BPFILTER_INET_HOOK_MAX]; + __u32 underflow[BPFILTER_INET_HOOK_MAX]; + __u32 num_entries; + __u32 size; +}; + +struct bpfilter_ipt_counters { + __u64 packet_cnt; + __u64 byte_cnt; +}; + +struct bpfilter_ipt_counters_info { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 num_counters; + struct bpfilter_ipt_counters counters[]; +}; + +struct bpfilter_ipt_get_revision { + char name[BPFILTER_EXTENSION_MAXNAMELEN]; + __u8 revision; +}; + +struct bpfilter_ipt_ip { + __u32 src; + __u32 dst; + __u32 src_mask; + __u32 dst_mask; + char in_iface[IFNAMSIZ]; + char out_iface[IFNAMSIZ]; + __u8 in_iface_mask[IFNAMSIZ]; + __u8 out_iface_mask[IFNAMSIZ]; + __u16 protocol; + __u8 flags; + __u8 invflags; +}; + +struct bpfilter_ipt_entry { + struct bpfilter_ipt_ip ip; + __u32 bfcache; + __u16 target_offset; + __u16 next_offset; + __u32 comefrom; + struct bpfilter_ipt_counters counters; + __u8 elems[]; +}; + +struct bpfilter_ipt_standard_entry { + struct bpfilter_ipt_entry entry; + struct bpfilter_ipt_standard_target target; +}; + +struct bpfilter_ipt_error_entry { + struct bpfilter_ipt_entry entry; + struct bpfilter_ipt_error_target target; +}; + +struct bpfilter_ipt_get_entries { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 size; + struct bpfilter_ipt_entry entries[]; +}; + +struct bpfilter_ipt_replace { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 valid_hooks; + __u32 num_entries; + __u32 size; + __u32 hook_entry[BPFILTER_INET_HOOK_MAX]; + __u32 underflow[BPFILTER_INET_HOOK_MAX]; + __u32 num_counters; + struct bpfilter_ipt_counters *cntrs; + struct bpfilter_ipt_entry entries[]; +}; + +#endif /* _UAPI_LINUX_BPFILTER_H */