main.h (9e8238020c5beba64e7ffafbb7ea0fb02fe68270) main.h (09f44b753a7d120becc80213c3459183c8acd26b)
1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
3
4#ifndef __BPF_TOOL_H
5#define __BPF_TOOL_H
6
7/* BFD and kernel.h both define GCC_VERSION, differently */
8#undef GCC_VERSION

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13#include <linux/kernel.h>
14#include <linux/hashtable.h>
15#include <tools/libc_compat.h>
16
17#include <bpf/libbpf.h>
18
19#include "json_writer.h"
20
1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
3
4#ifndef __BPF_TOOL_H
5#define __BPF_TOOL_H
6
7/* BFD and kernel.h both define GCC_VERSION, differently */
8#undef GCC_VERSION

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13#include <linux/kernel.h>
14#include <linux/hashtable.h>
15#include <tools/libc_compat.h>
16
17#include <bpf/libbpf.h>
18
19#include "json_writer.h"
20
21#define ptr_to_u64(ptr) ((__u64)(unsigned long)(ptr))
21/* Make sure we do not use kernel-only integer typedefs */
22#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
22
23
24static inline __u64 ptr_to_u64(const void *ptr)
25{
26 return (__u64)(unsigned long)ptr;
27}
28
29static inline void *u64_to_ptr(__u64 ptr)
30{
31 return (void *)(unsigned long)ptr;
32}
33
23#define NEXT_ARG() ({ argc--; argv++; if (argc < 0) usage(); })
24#define NEXT_ARGP() ({ (*argc)--; (*argv)++; if (*argc < 0) usage(); })
25#define BAD_ARG() ({ p_err("what is '%s'?", *argv); -1; })
26#define GET_ARG() ({ argc--; *argv++; })
27#define REQ_ARGS(cnt) \
28 ({ \
29 int _cnt = (cnt); \
30 bool _res; \

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45
46#define HELP_SPEC_PROGRAM \
47 "PROG := { id PROG_ID | pinned FILE | tag PROG_TAG | name PROG_NAME }"
48#define HELP_SPEC_OPTIONS \
49 "OPTIONS := { {-j|--json} [{-p|--pretty}] | {-f|--bpffs} |\n" \
50 "\t {-m|--mapcompat} | {-n|--nomount} }"
51#define HELP_SPEC_MAP \
52 "MAP := { id MAP_ID | pinned FILE | name MAP_NAME }"
34#define NEXT_ARG() ({ argc--; argv++; if (argc < 0) usage(); })
35#define NEXT_ARGP() ({ (*argc)--; (*argv)++; if (*argc < 0) usage(); })
36#define BAD_ARG() ({ p_err("what is '%s'?", *argv); -1; })
37#define GET_ARG() ({ argc--; *argv++; })
38#define REQ_ARGS(cnt) \
39 ({ \
40 int _cnt = (cnt); \
41 bool _res; \

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56
57#define HELP_SPEC_PROGRAM \
58 "PROG := { id PROG_ID | pinned FILE | tag PROG_TAG | name PROG_NAME }"
59#define HELP_SPEC_OPTIONS \
60 "OPTIONS := { {-j|--json} [{-p|--pretty}] | {-f|--bpffs} |\n" \
61 "\t {-m|--mapcompat} | {-n|--nomount} }"
62#define HELP_SPEC_MAP \
63 "MAP := { id MAP_ID | pinned FILE | name MAP_NAME }"
64#define HELP_SPEC_LINK \
65 "LINK := { id LINK_ID | pinned FILE }"
53
66
54static const char * const prog_type_name[] = {
55 [BPF_PROG_TYPE_UNSPEC] = "unspec",
56 [BPF_PROG_TYPE_SOCKET_FILTER] = "socket_filter",
57 [BPF_PROG_TYPE_KPROBE] = "kprobe",
58 [BPF_PROG_TYPE_SCHED_CLS] = "sched_cls",
59 [BPF_PROG_TYPE_SCHED_ACT] = "sched_act",
60 [BPF_PROG_TYPE_TRACEPOINT] = "tracepoint",
61 [BPF_PROG_TYPE_XDP] = "xdp",
62 [BPF_PROG_TYPE_PERF_EVENT] = "perf_event",
63 [BPF_PROG_TYPE_CGROUP_SKB] = "cgroup_skb",
64 [BPF_PROG_TYPE_CGROUP_SOCK] = "cgroup_sock",
65 [BPF_PROG_TYPE_LWT_IN] = "lwt_in",
66 [BPF_PROG_TYPE_LWT_OUT] = "lwt_out",
67 [BPF_PROG_TYPE_LWT_XMIT] = "lwt_xmit",
68 [BPF_PROG_TYPE_SOCK_OPS] = "sock_ops",
69 [BPF_PROG_TYPE_SK_SKB] = "sk_skb",
70 [BPF_PROG_TYPE_CGROUP_DEVICE] = "cgroup_device",
71 [BPF_PROG_TYPE_SK_MSG] = "sk_msg",
72 [BPF_PROG_TYPE_RAW_TRACEPOINT] = "raw_tracepoint",
73 [BPF_PROG_TYPE_CGROUP_SOCK_ADDR] = "cgroup_sock_addr",
74 [BPF_PROG_TYPE_LWT_SEG6LOCAL] = "lwt_seg6local",
75 [BPF_PROG_TYPE_LIRC_MODE2] = "lirc_mode2",
76 [BPF_PROG_TYPE_SK_REUSEPORT] = "sk_reuseport",
77 [BPF_PROG_TYPE_FLOW_DISSECTOR] = "flow_dissector",
78 [BPF_PROG_TYPE_CGROUP_SYSCTL] = "cgroup_sysctl",
79 [BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE] = "raw_tracepoint_writable",
80 [BPF_PROG_TYPE_CGROUP_SOCKOPT] = "cgroup_sockopt",
81 [BPF_PROG_TYPE_TRACING] = "tracing",
82 [BPF_PROG_TYPE_STRUCT_OPS] = "struct_ops",
83 [BPF_PROG_TYPE_EXT] = "ext",
84};
67extern const char * const prog_type_name[];
68extern const size_t prog_type_name_size;
85
69
70extern const char * const attach_type_name[__MAX_BPF_ATTACH_TYPE];
71
86extern const char * const map_type_name[];
87extern const size_t map_type_name_size;
88
72extern const char * const map_type_name[];
73extern const size_t map_type_name_size;
74
75/* keep in sync with the definition in skeleton/pid_iter.bpf.c */
89enum bpf_obj_type {
90 BPF_OBJ_UNKNOWN,
91 BPF_OBJ_PROG,
92 BPF_OBJ_MAP,
76enum bpf_obj_type {
77 BPF_OBJ_UNKNOWN,
78 BPF_OBJ_PROG,
79 BPF_OBJ_MAP,
80 BPF_OBJ_LINK,
81 BPF_OBJ_BTF,
93};
94
95extern const char *bin_name;
96
97extern json_writer_t *json_wtr;
98extern bool json_output;
99extern bool show_pinned;
82};
83
84extern const char *bin_name;
85
86extern json_writer_t *json_wtr;
87extern bool json_output;
88extern bool show_pinned;
89extern bool show_pids;
100extern bool block_mount;
101extern bool verifier_logs;
102extern bool relaxed_maps;
103extern struct pinned_obj_table prog_table;
104extern struct pinned_obj_table map_table;
90extern bool block_mount;
91extern bool verifier_logs;
92extern bool relaxed_maps;
93extern struct pinned_obj_table prog_table;
94extern struct pinned_obj_table map_table;
95extern struct pinned_obj_table link_table;
96extern struct obj_refs_table refs_table;
105
106void __printf(1, 2) p_err(const char *fmt, ...);
107void __printf(1, 2) p_info(const char *fmt, ...);
108
109bool is_prefix(const char *pfx, const char *str);
110int detect_common_prefix(const char *arg, ...);
111void fprint_hex(FILE *f, void *arg, unsigned int n, const char *sep);
112void usage(void) __noreturn;

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120};
121
122struct pinned_obj {
123 __u32 id;
124 char *path;
125 struct hlist_node hash;
126};
127
97
98void __printf(1, 2) p_err(const char *fmt, ...);
99void __printf(1, 2) p_info(const char *fmt, ...);
100
101bool is_prefix(const char *pfx, const char *str);
102int detect_common_prefix(const char *arg, ...);
103void fprint_hex(FILE *f, void *arg, unsigned int n, const char *sep);
104void usage(void) __noreturn;

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112};
113
114struct pinned_obj {
115 __u32 id;
116 char *path;
117 struct hlist_node hash;
118};
119
120struct obj_refs_table {
121 DECLARE_HASHTABLE(table, 16);
122};
123
124struct obj_ref {
125 int pid;
126 char comm[16];
127};
128
129struct obj_refs {
130 struct hlist_node node;
131 __u32 id;
132 int ref_cnt;
133 struct obj_ref *refs;
134};
135
128struct btf;
129struct bpf_line_info;
130
131int build_pinned_obj_table(struct pinned_obj_table *table,
132 enum bpf_obj_type type);
133void delete_pinned_obj_table(struct pinned_obj_table *tab);
136struct btf;
137struct bpf_line_info;
138
139int build_pinned_obj_table(struct pinned_obj_table *table,
140 enum bpf_obj_type type);
141void delete_pinned_obj_table(struct pinned_obj_table *tab);
142__weak int build_obj_refs_table(struct obj_refs_table *table,
143 enum bpf_obj_type type);
144__weak void delete_obj_refs_table(struct obj_refs_table *table);
145__weak void emit_obj_refs_json(struct obj_refs_table *table, __u32 id,
146 json_writer_t *json_wtr);
147__weak void emit_obj_refs_plain(struct obj_refs_table *table, __u32 id,
148 const char *prefix);
134void print_dev_plain(__u32 ifindex, __u64 ns_dev, __u64 ns_inode);
135void print_dev_json(__u32 ifindex, __u64 ns_dev, __u64 ns_inode);
136
137struct cmd {
138 const char *cmd;
139 int (*func)(int argc, char **argv);
140};
141
142int cmd_select(const struct cmd *cmds, int argc, char **argv,
143 int (*help)(int argc, char **argv));
144
145int get_fd_type(int fd);
146const char *get_fd_type_name(enum bpf_obj_type type);
147char *get_fdinfo(int fd, const char *key);
149void print_dev_plain(__u32 ifindex, __u64 ns_dev, __u64 ns_inode);
150void print_dev_json(__u32 ifindex, __u64 ns_dev, __u64 ns_inode);
151
152struct cmd {
153 const char *cmd;
154 int (*func)(int argc, char **argv);
155};
156
157int cmd_select(const struct cmd *cmds, int argc, char **argv,
158 int (*help)(int argc, char **argv));
159
160int get_fd_type(int fd);
161const char *get_fd_type_name(enum bpf_obj_type type);
162char *get_fdinfo(int fd, const char *key);
148int open_obj_pinned(char *path, bool quiet);
149int open_obj_pinned_any(char *path, enum bpf_obj_type exp_type);
163int open_obj_pinned(const char *path, bool quiet);
164int open_obj_pinned_any(const char *path, enum bpf_obj_type exp_type);
150int mount_bpffs_for_pin(const char *name);
151int do_pin_any(int argc, char **argv, int (*get_fd_by_id)(int *, char ***));
152int do_pin_fd(int fd, const char *name);
153
165int mount_bpffs_for_pin(const char *name);
166int do_pin_any(int argc, char **argv, int (*get_fd_by_id)(int *, char ***));
167int do_pin_fd(int fd, const char *name);
168
154int do_prog(int argc, char **arg);
155int do_map(int argc, char **arg);
156int do_event_pipe(int argc, char **argv);
157int do_cgroup(int argc, char **arg);
158int do_perf(int argc, char **arg);
159int do_net(int argc, char **arg);
160int do_tracelog(int argc, char **arg);
161int do_feature(int argc, char **argv);
162int do_btf(int argc, char **argv);
169/* commands available in bootstrap mode */
163int do_gen(int argc, char **argv);
170int do_gen(int argc, char **argv);
164int do_struct_ops(int argc, char **argv);
171int do_btf(int argc, char **argv);
165
172
173/* non-bootstrap only commands */
174int do_prog(int argc, char **arg) __weak;
175int do_map(int argc, char **arg) __weak;
176int do_link(int argc, char **arg) __weak;
177int do_event_pipe(int argc, char **argv) __weak;
178int do_cgroup(int argc, char **arg) __weak;
179int do_perf(int argc, char **arg) __weak;
180int do_net(int argc, char **arg) __weak;
181int do_tracelog(int argc, char **arg) __weak;
182int do_feature(int argc, char **argv) __weak;
183int do_struct_ops(int argc, char **argv) __weak;
184int do_iter(int argc, char **argv) __weak;
185
166int parse_u32_arg(int *argc, char ***argv, __u32 *val, const char *what);
167int prog_parse_fd(int *argc, char ***argv);
186int parse_u32_arg(int *argc, char ***argv, __u32 *val, const char *what);
187int prog_parse_fd(int *argc, char ***argv);
188int prog_parse_fds(int *argc, char ***argv, int **fds);
168int map_parse_fd(int *argc, char ***argv);
189int map_parse_fd(int *argc, char ***argv);
190int map_parse_fds(int *argc, char ***argv, int **fds);
169int map_parse_fd_and_info(int *argc, char ***argv, void *info, __u32 *info_len);
170
171struct bpf_prog_linfo;
172#ifdef HAVE_LIBBFD_SUPPORT
173void disasm_print_insn(unsigned char *image, ssize_t len, int opcodes,
174 const char *arch, const char *disassembler_options,
175 const struct btf *btf,
176 const struct bpf_prog_linfo *prog_linfo,

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191int map_parse_fd_and_info(int *argc, char ***argv, void *info, __u32 *info_len);
192
193struct bpf_prog_linfo;
194#ifdef HAVE_LIBBFD_SUPPORT
195void disasm_print_insn(unsigned char *image, ssize_t len, int opcodes,
196 const char *arch, const char *disassembler_options,
197 const struct btf *btf,
198 const struct bpf_prog_linfo *prog_linfo,

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