| /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ |
| /* Copyright (C) 2017-2018 Netronome Systems, Inc. */ |
| |
| #ifndef __BPF_TOOL_H |
| #define __BPF_TOOL_H |
| |
| /* BFD and kernel.h both define GCC_VERSION, differently */ |
| #undef GCC_VERSION |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <linux/bpf.h> |
| #include <linux/compiler.h> |
| #include <linux/kernel.h> |
| #include <linux/hashtable.h> |
| #include <tools/libc_compat.h> |
| |
| #include <bpf/libbpf.h> |
| |
| #include "json_writer.h" |
| |
| /* Make sure we do not use kernel-only integer typedefs */ |
| #pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64 |
| |
| #define ptr_to_u64(ptr) ((__u64)(unsigned long)(ptr)) |
| |
| #define NEXT_ARG() ({ argc--; argv++; if (argc < 0) usage(); }) |
| #define NEXT_ARGP() ({ (*argc)--; (*argv)++; if (*argc < 0) usage(); }) |
| #define BAD_ARG() ({ p_err("what is '%s'?", *argv); -1; }) |
| #define GET_ARG() ({ argc--; *argv++; }) |
| #define REQ_ARGS(cnt) \ |
| ({ \ |
| int _cnt = (cnt); \ |
| bool _res; \ |
| \ |
| if (argc < _cnt) { \ |
| p_err("'%s' needs at least %d arguments, %d found", \ |
| argv[-1], _cnt, argc); \ |
| _res = false; \ |
| } else { \ |
| _res = true; \ |
| } \ |
| _res; \ |
| }) |
| |
| #define ERR_MAX_LEN 1024 |
| |
| #define BPF_TAG_FMT "%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx" |
| |
| #define HELP_SPEC_PROGRAM \ |
| "PROG := { id PROG_ID | pinned FILE | tag PROG_TAG | name PROG_NAME }" |
| #define HELP_SPEC_OPTIONS \ |
| "OPTIONS := { {-j|--json} [{-p|--pretty}] | {-f|--bpffs} |\n" \ |
| "\t {-m|--mapcompat} | {-n|--nomount} }" |
| #define HELP_SPEC_MAP \ |
| "MAP := { id MAP_ID | pinned FILE | name MAP_NAME }" |
| #define HELP_SPEC_LINK \ |
| "LINK := { id LINK_ID | pinned FILE }" |
| |
| static const char * const prog_type_name[] = { |
| [BPF_PROG_TYPE_UNSPEC] = "unspec", |
| [BPF_PROG_TYPE_SOCKET_FILTER] = "socket_filter", |
| [BPF_PROG_TYPE_KPROBE] = "kprobe", |
| [BPF_PROG_TYPE_SCHED_CLS] = "sched_cls", |
| [BPF_PROG_TYPE_SCHED_ACT] = "sched_act", |
| [BPF_PROG_TYPE_TRACEPOINT] = "tracepoint", |
| [BPF_PROG_TYPE_XDP] = "xdp", |
| [BPF_PROG_TYPE_PERF_EVENT] = "perf_event", |
| [BPF_PROG_TYPE_CGROUP_SKB] = "cgroup_skb", |
| [BPF_PROG_TYPE_CGROUP_SOCK] = "cgroup_sock", |
| [BPF_PROG_TYPE_LWT_IN] = "lwt_in", |
| [BPF_PROG_TYPE_LWT_OUT] = "lwt_out", |
| [BPF_PROG_TYPE_LWT_XMIT] = "lwt_xmit", |
| [BPF_PROG_TYPE_SOCK_OPS] = "sock_ops", |
| [BPF_PROG_TYPE_SK_SKB] = "sk_skb", |
| [BPF_PROG_TYPE_CGROUP_DEVICE] = "cgroup_device", |
| [BPF_PROG_TYPE_SK_MSG] = "sk_msg", |
| [BPF_PROG_TYPE_RAW_TRACEPOINT] = "raw_tracepoint", |
| [BPF_PROG_TYPE_CGROUP_SOCK_ADDR] = "cgroup_sock_addr", |
| [BPF_PROG_TYPE_LWT_SEG6LOCAL] = "lwt_seg6local", |
| [BPF_PROG_TYPE_LIRC_MODE2] = "lirc_mode2", |
| [BPF_PROG_TYPE_SK_REUSEPORT] = "sk_reuseport", |
| [BPF_PROG_TYPE_FLOW_DISSECTOR] = "flow_dissector", |
| [BPF_PROG_TYPE_CGROUP_SYSCTL] = "cgroup_sysctl", |
| [BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE] = "raw_tracepoint_writable", |
| [BPF_PROG_TYPE_CGROUP_SOCKOPT] = "cgroup_sockopt", |
| [BPF_PROG_TYPE_TRACING] = "tracing", |
| [BPF_PROG_TYPE_STRUCT_OPS] = "struct_ops", |
| [BPF_PROG_TYPE_EXT] = "ext", |
| }; |
| |
| static const char * const attach_type_name[__MAX_BPF_ATTACH_TYPE] = { |
| [BPF_CGROUP_INET_INGRESS] = "ingress", |
| [BPF_CGROUP_INET_EGRESS] = "egress", |
| [BPF_CGROUP_INET_SOCK_CREATE] = "sock_create", |
| [BPF_CGROUP_SOCK_OPS] = "sock_ops", |
| [BPF_CGROUP_DEVICE] = "device", |
| [BPF_CGROUP_INET4_BIND] = "bind4", |
| [BPF_CGROUP_INET6_BIND] = "bind6", |
| [BPF_CGROUP_INET4_CONNECT] = "connect4", |
| [BPF_CGROUP_INET6_CONNECT] = "connect6", |
| [BPF_CGROUP_INET4_POST_BIND] = "post_bind4", |
| [BPF_CGROUP_INET6_POST_BIND] = "post_bind6", |
| [BPF_CGROUP_INET4_GETPEERNAME] = "getpeername4", |
| [BPF_CGROUP_INET6_GETPEERNAME] = "getpeername6", |
| [BPF_CGROUP_INET4_GETSOCKNAME] = "getsockname4", |
| [BPF_CGROUP_INET6_GETSOCKNAME] = "getsockname6", |
| [BPF_CGROUP_UDP4_SENDMSG] = "sendmsg4", |
| [BPF_CGROUP_UDP6_SENDMSG] = "sendmsg6", |
| [BPF_CGROUP_SYSCTL] = "sysctl", |
| [BPF_CGROUP_UDP4_RECVMSG] = "recvmsg4", |
| [BPF_CGROUP_UDP6_RECVMSG] = "recvmsg6", |
| [BPF_CGROUP_GETSOCKOPT] = "getsockopt", |
| [BPF_CGROUP_SETSOCKOPT] = "setsockopt", |
| |
| [BPF_SK_SKB_STREAM_PARSER] = "sk_skb_stream_parser", |
| [BPF_SK_SKB_STREAM_VERDICT] = "sk_skb_stream_verdict", |
| [BPF_SK_MSG_VERDICT] = "sk_msg_verdict", |
| [BPF_LIRC_MODE2] = "lirc_mode2", |
| [BPF_FLOW_DISSECTOR] = "flow_dissector", |
| [BPF_TRACE_RAW_TP] = "raw_tp", |
| [BPF_TRACE_FENTRY] = "fentry", |
| [BPF_TRACE_FEXIT] = "fexit", |
| [BPF_MODIFY_RETURN] = "mod_ret", |
| [BPF_LSM_MAC] = "lsm_mac", |
| }; |
| |
| extern const char * const map_type_name[]; |
| extern const size_t map_type_name_size; |
| |
| enum bpf_obj_type { |
| BPF_OBJ_UNKNOWN, |
| BPF_OBJ_PROG, |
| BPF_OBJ_MAP, |
| BPF_OBJ_LINK, |
| }; |
| |
| extern const char *bin_name; |
| |
| extern json_writer_t *json_wtr; |
| extern bool json_output; |
| extern bool show_pinned; |
| extern bool block_mount; |
| extern bool verifier_logs; |
| extern bool relaxed_maps; |
| extern struct pinned_obj_table prog_table; |
| extern struct pinned_obj_table map_table; |
| extern struct pinned_obj_table link_table; |
| |
| void __printf(1, 2) p_err(const char *fmt, ...); |
| void __printf(1, 2) p_info(const char *fmt, ...); |
| |
| bool is_prefix(const char *pfx, const char *str); |
| int detect_common_prefix(const char *arg, ...); |
| void fprint_hex(FILE *f, void *arg, unsigned int n, const char *sep); |
| void usage(void) __noreturn; |
| |
| void set_max_rlimit(void); |
| |
| int mount_tracefs(const char *target); |
| |
| struct pinned_obj_table { |
| DECLARE_HASHTABLE(table, 16); |
| }; |
| |
| struct pinned_obj { |
| __u32 id; |
| char *path; |
| struct hlist_node hash; |
| }; |
| |
| struct btf; |
| struct bpf_line_info; |
| |
| int build_pinned_obj_table(struct pinned_obj_table *table, |
| enum bpf_obj_type type); |
| void delete_pinned_obj_table(struct pinned_obj_table *tab); |
| void print_dev_plain(__u32 ifindex, __u64 ns_dev, __u64 ns_inode); |
| void print_dev_json(__u32 ifindex, __u64 ns_dev, __u64 ns_inode); |
| |
| struct cmd { |
| const char *cmd; |
| int (*func)(int argc, char **argv); |
| }; |
| |
| int cmd_select(const struct cmd *cmds, int argc, char **argv, |
| int (*help)(int argc, char **argv)); |
| |
| int get_fd_type(int fd); |
| const char *get_fd_type_name(enum bpf_obj_type type); |
| char *get_fdinfo(int fd, const char *key); |
| int open_obj_pinned(char *path, bool quiet); |
| int open_obj_pinned_any(char *path, enum bpf_obj_type exp_type); |
| int mount_bpffs_for_pin(const char *name); |
| int do_pin_any(int argc, char **argv, int (*get_fd_by_id)(int *, char ***)); |
| int do_pin_fd(int fd, const char *name); |
| |
| int do_prog(int argc, char **arg); |
| int do_map(int argc, char **arg); |
| int do_link(int argc, char **arg); |
| int do_event_pipe(int argc, char **argv); |
| int do_cgroup(int argc, char **arg); |
| int do_perf(int argc, char **arg); |
| int do_net(int argc, char **arg); |
| int do_tracelog(int argc, char **arg); |
| int do_feature(int argc, char **argv); |
| int do_btf(int argc, char **argv); |
| int do_gen(int argc, char **argv); |
| int do_struct_ops(int argc, char **argv); |
| int do_iter(int argc, char **argv); |
| |
| int parse_u32_arg(int *argc, char ***argv, __u32 *val, const char *what); |
| int prog_parse_fd(int *argc, char ***argv); |
| int map_parse_fd(int *argc, char ***argv); |
| int map_parse_fd_and_info(int *argc, char ***argv, void *info, __u32 *info_len); |
| |
| struct bpf_prog_linfo; |
| #ifdef HAVE_LIBBFD_SUPPORT |
| void disasm_print_insn(unsigned char *image, ssize_t len, int opcodes, |
| const char *arch, const char *disassembler_options, |
| const struct btf *btf, |
| const struct bpf_prog_linfo *prog_linfo, |
| __u64 func_ksym, unsigned int func_idx, |
| bool linum); |
| int disasm_init(void); |
| #else |
| static inline |
| void disasm_print_insn(unsigned char *image, ssize_t len, int opcodes, |
| const char *arch, const char *disassembler_options, |
| const struct btf *btf, |
| const struct bpf_prog_linfo *prog_linfo, |
| __u64 func_ksym, unsigned int func_idx, |
| bool linum) |
| { |
| } |
| static inline int disasm_init(void) |
| { |
| p_err("No libbfd support"); |
| return -1; |
| } |
| #endif |
| void print_data_json(uint8_t *data, size_t len); |
| void print_hex_data_json(uint8_t *data, size_t len); |
| |
| unsigned int get_page_size(void); |
| unsigned int get_possible_cpus(void); |
| const char * |
| ifindex_to_bfd_params(__u32 ifindex, __u64 ns_dev, __u64 ns_ino, |
| const char **opt); |
| |
| struct btf_dumper { |
| const struct btf *btf; |
| json_writer_t *jw; |
| bool is_plain_text; |
| bool prog_id_as_func_ptr; |
| }; |
| |
| /* btf_dumper_type - print data along with type information |
| * @d: an instance containing context for dumping types |
| * @type_id: index in btf->types array. this points to the type to be dumped |
| * @data: pointer the actual data, i.e. the values to be printed |
| * |
| * Returns zero on success and negative error code otherwise |
| */ |
| int btf_dumper_type(const struct btf_dumper *d, __u32 type_id, |
| const void *data); |
| void btf_dumper_type_only(const struct btf *btf, __u32 func_type_id, |
| char *func_only, int size); |
| |
| void btf_dump_linfo_plain(const struct btf *btf, |
| const struct bpf_line_info *linfo, |
| const char *prefix, bool linum); |
| void btf_dump_linfo_json(const struct btf *btf, |
| const struct bpf_line_info *linfo, bool linum); |
| |
| struct nlattr; |
| struct ifinfomsg; |
| struct tcmsg; |
| int do_xdp_dump(struct ifinfomsg *ifinfo, struct nlattr **tb); |
| int do_filter_dump(struct tcmsg *ifinfo, struct nlattr **tb, const char *kind, |
| const char *devname, int ifindex); |
| |
| int print_all_levels(__maybe_unused enum libbpf_print_level level, |
| const char *format, va_list args); |
| #endif |