From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- tools/bpf/bpftool/main.h | 273 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 tools/bpf/bpftool/main.h (limited to 'tools/bpf/bpftool/main.h') diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h new file mode 100644 index 0000000000..b8bb08d10d --- /dev/null +++ b/tools/bpf/bpftool/main.h @@ -0,0 +1,273 @@ +/* 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 +#include +#include +#include +#include +#include + +#include +#include + +#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 + +static inline __u64 ptr_to_u64(const void *ptr) +{ + return (__u64)(unsigned long)ptr; +} + +static inline void *u64_to_ptr(__u64 ptr) +{ + return (void *)(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}] | {-d|--debug}" +#define HELP_SPEC_MAP \ + "MAP := { id MAP_ID | pinned FILE | name MAP_NAME }" +#define HELP_SPEC_LINK \ + "LINK := { id LINK_ID | pinned FILE }" + +/* keep in sync with the definition in skeleton/pid_iter.bpf.c */ +enum bpf_obj_type { + BPF_OBJ_UNKNOWN, + BPF_OBJ_PROG, + BPF_OBJ_MAP, + BPF_OBJ_LINK, + BPF_OBJ_BTF, +}; + +extern const char *bin_name; + +extern json_writer_t *json_wtr; +extern bool json_output; +extern bool show_pinned; +extern bool show_pids; +extern bool block_mount; +extern bool verifier_logs; +extern bool relaxed_maps; +extern bool use_loader; +extern struct btf *base_btf; +extern struct hashmap *refs_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 obj_ref { + int pid; + char comm[16]; +}; + +struct obj_refs { + int ref_cnt; + bool has_bpf_cookie; + struct obj_ref *refs; + __u64 bpf_cookie; +}; + +struct btf; +struct bpf_line_info; + +int build_pinned_obj_table(struct hashmap *table, + enum bpf_obj_type type); +void delete_pinned_obj_table(struct hashmap *table); +__weak int build_obj_refs_table(struct hashmap **table, + enum bpf_obj_type type); +__weak void delete_obj_refs_table(struct hashmap *table); +__weak void emit_obj_refs_json(struct hashmap *table, __u32 id, + json_writer_t *json_wtr); +__weak void emit_obj_refs_plain(struct hashmap *table, __u32 id, + const char *prefix); +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)); + +#define MAX_PROG_FULL_NAME 128 +void get_prog_full_name(const struct bpf_prog_info *prog_info, int prog_fd, + char *name_buff, size_t buff_len); + +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(const char *path, bool quiet); +int open_obj_pinned_any(const char *path, enum bpf_obj_type exp_type); +int mount_bpffs_for_pin(const char *name, bool is_dir); +int do_pin_any(int argc, char **argv, int (*get_fd_by_id)(int *, char ***)); +int do_pin_fd(int fd, const char *name); + +/* commands available in bootstrap mode */ +int do_gen(int argc, char **argv); +int do_btf(int argc, char **argv); + +/* non-bootstrap only commands */ +int do_prog(int argc, char **arg) __weak; +int do_map(int argc, char **arg) __weak; +int do_link(int argc, char **arg) __weak; +int do_event_pipe(int argc, char **argv) __weak; +int do_cgroup(int argc, char **arg) __weak; +int do_perf(int argc, char **arg) __weak; +int do_net(int argc, char **arg) __weak; +int do_tracelog(int argc, char **arg) __weak; +int do_feature(int argc, char **argv) __weak; +int do_struct_ops(int argc, char **argv) __weak; +int do_iter(int argc, char **argv) __weak; + +int parse_u32_arg(int *argc, char ***argv, __u32 *val, const char *what); +int prog_parse_fd(int *argc, char ***argv); +int prog_parse_fds(int *argc, char ***argv, int **fds); +int map_parse_fd(int *argc, char ***argv); +int map_parse_fds(int *argc, char ***argv, int **fds); +int map_parse_fd_and_info(int *argc, char ***argv, struct bpf_map_info *info, + __u32 *info_len); + +struct bpf_prog_linfo; +#if defined(HAVE_LLVM_SUPPORT) || defined(HAVE_LIBBFD_SUPPORT) +int 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 +int 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) +{ + return 0; +} +static inline int disasm_init(void) +{ + p_err("No JIT disassembly 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_arch(__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); +void btf_dump_linfo_dotlabel(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); + +size_t hash_fn_for_key_as_id(long key, void *ctx); +bool equal_fn_for_key_as_id(long k1, long k2, void *ctx); + +/* bpf_attach_type_input_str - convert the provided attach type value into a + * textual representation that we accept for input purposes. + * + * This function is similar in nature to libbpf_bpf_attach_type_str, but + * recognizes some attach type names that have been used by the program in the + * past and which do not follow the string inference scheme that libbpf uses. + * These textual representations should only be used for user input. + * + * @t: The attach type + * Returns a pointer to a static string identifying the attach type. NULL is + * returned for unknown bpf_attach_type values. + */ +const char *bpf_attach_type_input_str(enum bpf_attach_type t); + +static inline bool hashmap__empty(struct hashmap *map) +{ + return map ? hashmap__size(map) == 0 : true; +} + +int pathname_concat(char *buf, int buf_sz, const char *path, + const char *name); + +/* print netfilter bpf_link info */ +void netfilter_dump_plain(const struct bpf_link_info *info); +void netfilter_dump_json(const struct bpf_link_info *info, json_writer_t *wtr); +#endif -- cgit v1.2.3