Jakub Kicinski | 02ff58d | 2018-12-12 19:59:25 -0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | /* Copyright (C) 2017-2018 Netronome Systems, Inc. */ |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 3 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 4 | #include <assert.h> |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 5 | #include <errno.h> |
| 6 | #include <fcntl.h> |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 7 | #include <linux/err.h> |
Yonghong Song | 573b3aa | 2018-07-30 08:49:03 -0700 | [diff] [blame] | 8 | #include <linux/kernel.h> |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 9 | #include <net/if.h> |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 10 | #include <stdbool.h> |
| 11 | #include <stdio.h> |
| 12 | #include <stdlib.h> |
| 13 | #include <string.h> |
| 14 | #include <unistd.h> |
| 15 | #include <sys/types.h> |
| 16 | #include <sys/stat.h> |
| 17 | |
Toke Høiland-Jørgensen | 229c3b4 | 2020-01-20 14:06:46 +0100 | [diff] [blame] | 18 | #include <bpf/bpf.h> |
| 19 | #include <bpf/btf.h> |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 20 | |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 21 | #include "json_writer.h" |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 22 | #include "main.h" |
| 23 | |
Quentin Monnet | f99e166 | 2019-01-17 15:27:54 +0000 | [diff] [blame] | 24 | const char * const map_type_name[] = { |
David Calavera | ffac28f | 2018-11-23 15:58:39 -0800 | [diff] [blame] | 25 | [BPF_MAP_TYPE_UNSPEC] = "unspec", |
| 26 | [BPF_MAP_TYPE_HASH] = "hash", |
| 27 | [BPF_MAP_TYPE_ARRAY] = "array", |
| 28 | [BPF_MAP_TYPE_PROG_ARRAY] = "prog_array", |
| 29 | [BPF_MAP_TYPE_PERF_EVENT_ARRAY] = "perf_event_array", |
| 30 | [BPF_MAP_TYPE_PERCPU_HASH] = "percpu_hash", |
| 31 | [BPF_MAP_TYPE_PERCPU_ARRAY] = "percpu_array", |
| 32 | [BPF_MAP_TYPE_STACK_TRACE] = "stack_trace", |
| 33 | [BPF_MAP_TYPE_CGROUP_ARRAY] = "cgroup_array", |
| 34 | [BPF_MAP_TYPE_LRU_HASH] = "lru_hash", |
| 35 | [BPF_MAP_TYPE_LRU_PERCPU_HASH] = "lru_percpu_hash", |
| 36 | [BPF_MAP_TYPE_LPM_TRIE] = "lpm_trie", |
| 37 | [BPF_MAP_TYPE_ARRAY_OF_MAPS] = "array_of_maps", |
| 38 | [BPF_MAP_TYPE_HASH_OF_MAPS] = "hash_of_maps", |
| 39 | [BPF_MAP_TYPE_DEVMAP] = "devmap", |
Toke Høiland-Jørgensen | 1375dc4a | 2019-07-26 18:06:58 +0200 | [diff] [blame] | 40 | [BPF_MAP_TYPE_DEVMAP_HASH] = "devmap_hash", |
David Calavera | ffac28f | 2018-11-23 15:58:39 -0800 | [diff] [blame] | 41 | [BPF_MAP_TYPE_SOCKMAP] = "sockmap", |
| 42 | [BPF_MAP_TYPE_CPUMAP] = "cpumap", |
| 43 | [BPF_MAP_TYPE_XSKMAP] = "xskmap", |
| 44 | [BPF_MAP_TYPE_SOCKHASH] = "sockhash", |
| 45 | [BPF_MAP_TYPE_CGROUP_STORAGE] = "cgroup_storage", |
| 46 | [BPF_MAP_TYPE_REUSEPORT_SOCKARRAY] = "reuseport_sockarray", |
Roman Gushchin | e548709 | 2018-09-28 14:45:51 +0000 | [diff] [blame] | 47 | [BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE] = "percpu_cgroup_storage", |
David Calavera | ffac28f | 2018-11-23 15:58:39 -0800 | [diff] [blame] | 48 | [BPF_MAP_TYPE_QUEUE] = "queue", |
| 49 | [BPF_MAP_TYPE_STACK] = "stack", |
Martin KaFai Lau | a19f89f | 2019-04-26 16:39:44 -0700 | [diff] [blame] | 50 | [BPF_MAP_TYPE_SK_STORAGE] = "sk_storage", |
Martin KaFai Lau | 84c72ce | 2020-01-15 15:00:37 -0800 | [diff] [blame] | 51 | [BPF_MAP_TYPE_STRUCT_OPS] = "struct_ops", |
Andrii Nakryiko | c34a06c | 2020-06-15 15:53:55 -0700 | [diff] [blame] | 52 | [BPF_MAP_TYPE_RINGBUF] = "ringbuf", |
KP Singh | 8ea6368 | 2020-08-25 20:29:17 +0200 | [diff] [blame] | 53 | [BPF_MAP_TYPE_INODE_STORAGE] = "inode_storage", |
KP Singh | 864ab06 | 2020-11-06 10:37:42 +0000 | [diff] [blame] | 54 | [BPF_MAP_TYPE_TASK_STORAGE] = "task_storage", |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 55 | }; |
| 56 | |
Quentin Monnet | f99e166 | 2019-01-17 15:27:54 +0000 | [diff] [blame] | 57 | const size_t map_type_name_size = ARRAY_SIZE(map_type_name); |
| 58 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 59 | static bool map_is_per_cpu(__u32 type) |
| 60 | { |
| 61 | return type == BPF_MAP_TYPE_PERCPU_HASH || |
| 62 | type == BPF_MAP_TYPE_PERCPU_ARRAY || |
Roman Gushchin | e548709 | 2018-09-28 14:45:51 +0000 | [diff] [blame] | 63 | type == BPF_MAP_TYPE_LRU_PERCPU_HASH || |
| 64 | type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | static bool map_is_map_of_maps(__u32 type) |
| 68 | { |
| 69 | return type == BPF_MAP_TYPE_ARRAY_OF_MAPS || |
| 70 | type == BPF_MAP_TYPE_HASH_OF_MAPS; |
| 71 | } |
| 72 | |
| 73 | static bool map_is_map_of_progs(__u32 type) |
| 74 | { |
| 75 | return type == BPF_MAP_TYPE_PROG_ARRAY; |
| 76 | } |
| 77 | |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 78 | static int map_type_from_str(const char *type) |
| 79 | { |
| 80 | unsigned int i; |
| 81 | |
| 82 | for (i = 0; i < ARRAY_SIZE(map_type_name); i++) |
| 83 | /* Don't allow prefixing in case of possible future shadowing */ |
| 84 | if (map_type_name[i] && !strcmp(map_type_name[i], type)) |
| 85 | return i; |
| 86 | return -1; |
| 87 | } |
| 88 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 89 | static void *alloc_value(struct bpf_map_info *info) |
| 90 | { |
| 91 | if (map_is_per_cpu(info->type)) |
Yonghong Song | 573b3aa | 2018-07-30 08:49:03 -0700 | [diff] [blame] | 92 | return malloc(round_up(info->value_size, 8) * |
| 93 | get_possible_cpus()); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 94 | else |
| 95 | return malloc(info->value_size); |
| 96 | } |
| 97 | |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 98 | static int do_dump_btf(const struct btf_dumper *d, |
| 99 | struct bpf_map_info *map_info, void *key, |
| 100 | void *value) |
| 101 | { |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 102 | __u32 value_id; |
Andrii Nakryiko | 4bbb358 | 2021-03-13 13:09:18 -0800 | [diff] [blame] | 103 | int ret = 0; |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 104 | |
| 105 | /* start of key-value pair */ |
| 106 | jsonw_start_object(d->jw); |
| 107 | |
Daniel Borkmann | 817998a | 2019-04-09 23:20:15 +0200 | [diff] [blame] | 108 | if (map_info->btf_key_type_id) { |
| 109 | jsonw_name(d->jw, "key"); |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 110 | |
Daniel Borkmann | 817998a | 2019-04-09 23:20:15 +0200 | [diff] [blame] | 111 | ret = btf_dumper_type(d, map_info->btf_key_type_id, key); |
| 112 | if (ret) |
| 113 | goto err_end_obj; |
| 114 | } |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 115 | |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 116 | value_id = map_info->btf_vmlinux_value_type_id ? |
| 117 | : map_info->btf_value_type_id; |
| 118 | |
Yonghong Song | 1a86ad8 | 2018-08-29 14:43:15 -0700 | [diff] [blame] | 119 | if (!map_is_per_cpu(map_info->type)) { |
| 120 | jsonw_name(d->jw, "value"); |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 121 | ret = btf_dumper_type(d, value_id, value); |
Yonghong Song | 1a86ad8 | 2018-08-29 14:43:15 -0700 | [diff] [blame] | 122 | } else { |
| 123 | unsigned int i, n, step; |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 124 | |
Yonghong Song | 1a86ad8 | 2018-08-29 14:43:15 -0700 | [diff] [blame] | 125 | jsonw_name(d->jw, "values"); |
| 126 | jsonw_start_array(d->jw); |
| 127 | n = get_possible_cpus(); |
| 128 | step = round_up(map_info->value_size, 8); |
| 129 | for (i = 0; i < n; i++) { |
| 130 | jsonw_start_object(d->jw); |
| 131 | jsonw_int_field(d->jw, "cpu", i); |
| 132 | jsonw_name(d->jw, "value"); |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 133 | ret = btf_dumper_type(d, value_id, value + i * step); |
Yonghong Song | 1a86ad8 | 2018-08-29 14:43:15 -0700 | [diff] [blame] | 134 | jsonw_end_object(d->jw); |
| 135 | if (ret) |
| 136 | break; |
| 137 | } |
| 138 | jsonw_end_array(d->jw); |
| 139 | } |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 140 | |
| 141 | err_end_obj: |
| 142 | /* end of key-value pair */ |
| 143 | jsonw_end_object(d->jw); |
| 144 | |
| 145 | return ret; |
| 146 | } |
| 147 | |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 148 | static json_writer_t *get_btf_writer(void) |
| 149 | { |
| 150 | json_writer_t *jw = jsonw_new(stdout); |
| 151 | |
| 152 | if (!jw) |
| 153 | return NULL; |
| 154 | jsonw_pretty(jw, true); |
| 155 | |
| 156 | return jw; |
| 157 | } |
| 158 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 159 | static void print_entry_json(struct bpf_map_info *info, unsigned char *key, |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 160 | unsigned char *value, struct btf *btf) |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 161 | { |
| 162 | jsonw_start_object(json_wtr); |
| 163 | |
| 164 | if (!map_is_per_cpu(info->type)) { |
| 165 | jsonw_name(json_wtr, "key"); |
| 166 | print_hex_data_json(key, info->key_size); |
| 167 | jsonw_name(json_wtr, "value"); |
| 168 | print_hex_data_json(value, info->value_size); |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 169 | if (btf) { |
| 170 | struct btf_dumper d = { |
| 171 | .btf = btf, |
| 172 | .jw = json_wtr, |
| 173 | .is_plain_text = false, |
| 174 | }; |
| 175 | |
| 176 | jsonw_name(json_wtr, "formatted"); |
| 177 | do_dump_btf(&d, info, key, value); |
| 178 | } |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 179 | } else { |
Yonghong Song | 573b3aa | 2018-07-30 08:49:03 -0700 | [diff] [blame] | 180 | unsigned int i, n, step; |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 181 | |
| 182 | n = get_possible_cpus(); |
Yonghong Song | 573b3aa | 2018-07-30 08:49:03 -0700 | [diff] [blame] | 183 | step = round_up(info->value_size, 8); |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 184 | |
| 185 | jsonw_name(json_wtr, "key"); |
| 186 | print_hex_data_json(key, info->key_size); |
| 187 | |
| 188 | jsonw_name(json_wtr, "values"); |
| 189 | jsonw_start_array(json_wtr); |
| 190 | for (i = 0; i < n; i++) { |
| 191 | jsonw_start_object(json_wtr); |
| 192 | |
| 193 | jsonw_int_field(json_wtr, "cpu", i); |
| 194 | |
| 195 | jsonw_name(json_wtr, "value"); |
Yonghong Song | 573b3aa | 2018-07-30 08:49:03 -0700 | [diff] [blame] | 196 | print_hex_data_json(value + i * step, |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 197 | info->value_size); |
| 198 | |
| 199 | jsonw_end_object(json_wtr); |
| 200 | } |
| 201 | jsonw_end_array(json_wtr); |
Yonghong Song | 1a86ad8 | 2018-08-29 14:43:15 -0700 | [diff] [blame] | 202 | if (btf) { |
| 203 | struct btf_dumper d = { |
| 204 | .btf = btf, |
| 205 | .jw = json_wtr, |
| 206 | .is_plain_text = false, |
| 207 | }; |
| 208 | |
| 209 | jsonw_name(json_wtr, "formatted"); |
| 210 | do_dump_btf(&d, info, key, value); |
| 211 | } |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | jsonw_end_object(json_wtr); |
| 215 | } |
| 216 | |
Quentin Monnet | a20693b | 2020-09-10 11:26:50 +0100 | [diff] [blame] | 217 | static void |
| 218 | print_entry_error_msg(struct bpf_map_info *info, unsigned char *key, |
| 219 | const char *error_msg) |
Prashant Bhole | 8ec92dc | 2018-10-09 10:04:52 +0900 | [diff] [blame] | 220 | { |
Benjamin Poirier | 0478c3b | 2019-04-15 16:15:35 +0900 | [diff] [blame] | 221 | int msg_size = strlen(error_msg); |
Prashant Bhole | 8ec92dc | 2018-10-09 10:04:52 +0900 | [diff] [blame] | 222 | bool single_line, break_names; |
| 223 | |
Benjamin Poirier | 0478c3b | 2019-04-15 16:15:35 +0900 | [diff] [blame] | 224 | break_names = info->key_size > 16 || msg_size > 16; |
| 225 | single_line = info->key_size + msg_size <= 24 && !break_names; |
Prashant Bhole | 8ec92dc | 2018-10-09 10:04:52 +0900 | [diff] [blame] | 226 | |
| 227 | printf("key:%c", break_names ? '\n' : ' '); |
| 228 | fprint_hex(stdout, key, info->key_size, " "); |
| 229 | |
| 230 | printf(single_line ? " " : "\n"); |
| 231 | |
Benjamin Poirier | 0478c3b | 2019-04-15 16:15:35 +0900 | [diff] [blame] | 232 | printf("value:%c%s", break_names ? '\n' : ' ', error_msg); |
Prashant Bhole | 8ec92dc | 2018-10-09 10:04:52 +0900 | [diff] [blame] | 233 | |
| 234 | printf("\n"); |
| 235 | } |
| 236 | |
Quentin Monnet | a20693b | 2020-09-10 11:26:50 +0100 | [diff] [blame] | 237 | static void |
| 238 | print_entry_error(struct bpf_map_info *map_info, void *key, int lookup_errno) |
| 239 | { |
| 240 | /* For prog_array maps or arrays of maps, failure to lookup the value |
| 241 | * means there is no entry for that key. Do not print an error message |
| 242 | * in that case. |
| 243 | */ |
Quentin Monnet | 86233ce | 2020-09-10 11:26:51 +0100 | [diff] [blame] | 244 | if ((map_is_map_of_maps(map_info->type) || |
| 245 | map_is_map_of_progs(map_info->type)) && lookup_errno == ENOENT) |
Quentin Monnet | a20693b | 2020-09-10 11:26:50 +0100 | [diff] [blame] | 246 | return; |
| 247 | |
| 248 | if (json_output) { |
| 249 | jsonw_start_object(json_wtr); /* entry */ |
| 250 | jsonw_name(json_wtr, "key"); |
| 251 | print_hex_data_json(key, map_info->key_size); |
| 252 | jsonw_name(json_wtr, "value"); |
| 253 | jsonw_start_object(json_wtr); /* error */ |
| 254 | jsonw_string_field(json_wtr, "error", strerror(lookup_errno)); |
| 255 | jsonw_end_object(json_wtr); /* error */ |
| 256 | jsonw_end_object(json_wtr); /* entry */ |
| 257 | } else { |
| 258 | const char *msg = NULL; |
| 259 | |
| 260 | if (lookup_errno == ENOENT) |
| 261 | msg = "<no entry>"; |
| 262 | else if (lookup_errno == ENOSPC && |
| 263 | map_info->type == BPF_MAP_TYPE_REUSEPORT_SOCKARRAY) |
| 264 | msg = "<cannot read>"; |
| 265 | |
| 266 | print_entry_error_msg(map_info, key, |
| 267 | msg ? : strerror(lookup_errno)); |
| 268 | } |
| 269 | } |
| 270 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 271 | static void print_entry_plain(struct bpf_map_info *info, unsigned char *key, |
| 272 | unsigned char *value) |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 273 | { |
| 274 | if (!map_is_per_cpu(info->type)) { |
| 275 | bool single_line, break_names; |
| 276 | |
| 277 | break_names = info->key_size > 16 || info->value_size > 16; |
| 278 | single_line = info->key_size + info->value_size <= 24 && |
| 279 | !break_names; |
| 280 | |
Stanislav Fomichev | 04a5d32 | 2019-01-16 11:10:01 -0800 | [diff] [blame] | 281 | if (info->key_size) { |
| 282 | printf("key:%c", break_names ? '\n' : ' '); |
| 283 | fprint_hex(stdout, key, info->key_size, " "); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 284 | |
Stanislav Fomichev | 04a5d32 | 2019-01-16 11:10:01 -0800 | [diff] [blame] | 285 | printf(single_line ? " " : "\n"); |
| 286 | } |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 287 | |
Stanislav Fomichev | 04a5d32 | 2019-01-16 11:10:01 -0800 | [diff] [blame] | 288 | if (info->value_size) { |
| 289 | printf("value:%c", break_names ? '\n' : ' '); |
Benjamin Poirier | 0478c3b | 2019-04-15 16:15:35 +0900 | [diff] [blame] | 290 | fprint_hex(stdout, value, info->value_size, " "); |
Stanislav Fomichev | 04a5d32 | 2019-01-16 11:10:01 -0800 | [diff] [blame] | 291 | } |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 292 | |
| 293 | printf("\n"); |
| 294 | } else { |
Yonghong Song | 573b3aa | 2018-07-30 08:49:03 -0700 | [diff] [blame] | 295 | unsigned int i, n, step; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 296 | |
| 297 | n = get_possible_cpus(); |
Yonghong Song | 573b3aa | 2018-07-30 08:49:03 -0700 | [diff] [blame] | 298 | step = round_up(info->value_size, 8); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 299 | |
Stanislav Fomichev | 04a5d32 | 2019-01-16 11:10:01 -0800 | [diff] [blame] | 300 | if (info->key_size) { |
| 301 | printf("key:\n"); |
| 302 | fprint_hex(stdout, key, info->key_size, " "); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 303 | printf("\n"); |
| 304 | } |
Stanislav Fomichev | 04a5d32 | 2019-01-16 11:10:01 -0800 | [diff] [blame] | 305 | if (info->value_size) { |
| 306 | for (i = 0; i < n; i++) { |
| 307 | printf("value (CPU %02d):%c", |
| 308 | i, info->value_size > 16 ? '\n' : ' '); |
Benjamin Poirier | 0478c3b | 2019-04-15 16:15:35 +0900 | [diff] [blame] | 309 | fprint_hex(stdout, value + i * step, |
| 310 | info->value_size, " "); |
Stanislav Fomichev | 04a5d32 | 2019-01-16 11:10:01 -0800 | [diff] [blame] | 311 | printf("\n"); |
| 312 | } |
| 313 | } |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 314 | } |
| 315 | } |
| 316 | |
| 317 | static char **parse_bytes(char **argv, const char *name, unsigned char *val, |
| 318 | unsigned int n) |
| 319 | { |
Quentin Monnet | 0c90f22 | 2018-04-17 19:46:34 -0700 | [diff] [blame] | 320 | unsigned int i = 0, base = 0; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 321 | char *endptr; |
| 322 | |
Quentin Monnet | 0c90f22 | 2018-04-17 19:46:34 -0700 | [diff] [blame] | 323 | if (is_prefix(*argv, "hex")) { |
| 324 | base = 16; |
| 325 | argv++; |
| 326 | } |
| 327 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 328 | while (i < n && argv[i]) { |
Quentin Monnet | 0c90f22 | 2018-04-17 19:46:34 -0700 | [diff] [blame] | 329 | val[i] = strtoul(argv[i], &endptr, base); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 330 | if (*endptr) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 331 | p_err("error parsing byte: %s", argv[i]); |
Quentin Monnet | d9c0b48 | 2017-10-19 15:46:23 -0700 | [diff] [blame] | 332 | return NULL; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 333 | } |
| 334 | i++; |
| 335 | } |
| 336 | |
| 337 | if (i != n) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 338 | p_err("%s expected %d bytes got %d", name, n, i); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 339 | return NULL; |
| 340 | } |
| 341 | |
| 342 | return argv + i; |
| 343 | } |
| 344 | |
Paolo Abeni | b0ca5ec | 2019-01-21 12:36:12 +0100 | [diff] [blame] | 345 | /* on per cpu maps we must copy the provided value on all value instances */ |
| 346 | static void fill_per_cpu_value(struct bpf_map_info *info, void *value) |
| 347 | { |
| 348 | unsigned int i, n, step; |
| 349 | |
| 350 | if (!map_is_per_cpu(info->type)) |
| 351 | return; |
| 352 | |
| 353 | n = get_possible_cpus(); |
| 354 | step = round_up(info->value_size, 8); |
| 355 | for (i = 1; i < n; i++) |
| 356 | memcpy(value + i * step, value, info->value_size); |
| 357 | } |
| 358 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 359 | static int parse_elem(char **argv, struct bpf_map_info *info, |
| 360 | void *key, void *value, __u32 key_size, __u32 value_size, |
| 361 | __u32 *flags, __u32 **value_fd) |
| 362 | { |
| 363 | if (!*argv) { |
| 364 | if (!key && !value) |
| 365 | return 0; |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 366 | p_err("did not find %s", key ? "key" : "value"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 367 | return -1; |
| 368 | } |
| 369 | |
| 370 | if (is_prefix(*argv, "key")) { |
| 371 | if (!key) { |
| 372 | if (key_size) |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 373 | p_err("duplicate key"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 374 | else |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 375 | p_err("unnecessary key"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 376 | return -1; |
| 377 | } |
| 378 | |
| 379 | argv = parse_bytes(argv + 1, "key", key, key_size); |
| 380 | if (!argv) |
| 381 | return -1; |
| 382 | |
| 383 | return parse_elem(argv, info, NULL, value, key_size, value_size, |
| 384 | flags, value_fd); |
| 385 | } else if (is_prefix(*argv, "value")) { |
| 386 | int fd; |
| 387 | |
| 388 | if (!value) { |
| 389 | if (value_size) |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 390 | p_err("duplicate value"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 391 | else |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 392 | p_err("unnecessary value"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 393 | return -1; |
| 394 | } |
| 395 | |
| 396 | argv++; |
| 397 | |
| 398 | if (map_is_map_of_maps(info->type)) { |
| 399 | int argc = 2; |
| 400 | |
| 401 | if (value_size != 4) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 402 | p_err("value smaller than 4B for map in map?"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 403 | return -1; |
| 404 | } |
| 405 | if (!argv[0] || !argv[1]) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 406 | p_err("not enough value arguments for map in map"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 407 | return -1; |
| 408 | } |
| 409 | |
| 410 | fd = map_parse_fd(&argc, &argv); |
| 411 | if (fd < 0) |
| 412 | return -1; |
| 413 | |
| 414 | *value_fd = value; |
| 415 | **value_fd = fd; |
| 416 | } else if (map_is_map_of_progs(info->type)) { |
| 417 | int argc = 2; |
| 418 | |
| 419 | if (value_size != 4) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 420 | p_err("value smaller than 4B for map of progs?"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 421 | return -1; |
| 422 | } |
| 423 | if (!argv[0] || !argv[1]) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 424 | p_err("not enough value arguments for map of progs"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 425 | return -1; |
| 426 | } |
Jakub Kicinski | d76198b | 2019-01-28 10:29:15 -0800 | [diff] [blame] | 427 | if (is_prefix(*argv, "id")) |
| 428 | p_info("Warning: updating program array via MAP_ID, make sure this map is kept open\n" |
| 429 | " by some process or pinned otherwise update will be lost"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 430 | |
| 431 | fd = prog_parse_fd(&argc, &argv); |
| 432 | if (fd < 0) |
| 433 | return -1; |
| 434 | |
| 435 | *value_fd = value; |
| 436 | **value_fd = fd; |
| 437 | } else { |
| 438 | argv = parse_bytes(argv, "value", value, value_size); |
| 439 | if (!argv) |
| 440 | return -1; |
Paolo Abeni | b0ca5ec | 2019-01-21 12:36:12 +0100 | [diff] [blame] | 441 | |
| 442 | fill_per_cpu_value(info, value); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 443 | } |
| 444 | |
| 445 | return parse_elem(argv, info, key, NULL, key_size, value_size, |
| 446 | flags, NULL); |
| 447 | } else if (is_prefix(*argv, "any") || is_prefix(*argv, "noexist") || |
| 448 | is_prefix(*argv, "exist")) { |
| 449 | if (!flags) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 450 | p_err("flags specified multiple times: %s", *argv); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 451 | return -1; |
| 452 | } |
| 453 | |
| 454 | if (is_prefix(*argv, "any")) |
| 455 | *flags = BPF_ANY; |
| 456 | else if (is_prefix(*argv, "noexist")) |
| 457 | *flags = BPF_NOEXIST; |
| 458 | else if (is_prefix(*argv, "exist")) |
| 459 | *flags = BPF_EXIST; |
| 460 | |
| 461 | return parse_elem(argv + 1, info, key, value, key_size, |
| 462 | value_size, NULL, value_fd); |
| 463 | } |
| 464 | |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 465 | p_err("expected key or value, got: %s", *argv); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 466 | return -1; |
| 467 | } |
| 468 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 469 | static void show_map_header_json(struct bpf_map_info *info, json_writer_t *wtr) |
| 470 | { |
| 471 | jsonw_uint_field(wtr, "id", info->id); |
| 472 | if (info->type < ARRAY_SIZE(map_type_name)) |
| 473 | jsonw_string_field(wtr, "type", map_type_name[info->type]); |
| 474 | else |
| 475 | jsonw_uint_field(wtr, "type", info->type); |
| 476 | |
| 477 | if (*info->name) |
| 478 | jsonw_string_field(wtr, "name", info->name); |
| 479 | |
| 480 | jsonw_name(wtr, "flags"); |
| 481 | jsonw_printf(wtr, "%d", info->map_flags); |
| 482 | } |
| 483 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 484 | static int show_map_close_json(int fd, struct bpf_map_info *info) |
| 485 | { |
Quentin Monnet | c354ff2 | 2019-08-21 09:52:18 +0100 | [diff] [blame] | 486 | char *memlock, *frozen_str; |
| 487 | int frozen = 0; |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 488 | |
| 489 | memlock = get_fdinfo(fd, "memlock"); |
Quentin Monnet | c354ff2 | 2019-08-21 09:52:18 +0100 | [diff] [blame] | 490 | frozen_str = get_fdinfo(fd, "frozen"); |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 491 | |
| 492 | jsonw_start_object(json_wtr); |
| 493 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 494 | show_map_header_json(info, json_wtr); |
Jakub Kicinski | 064a07c | 2018-01-17 19:13:29 -0800 | [diff] [blame] | 495 | |
| 496 | print_dev_json(info->ifindex, info->netns_dev, info->netns_ino); |
| 497 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 498 | jsonw_uint_field(json_wtr, "bytes_key", info->key_size); |
| 499 | jsonw_uint_field(json_wtr, "bytes_value", info->value_size); |
| 500 | jsonw_uint_field(json_wtr, "max_entries", info->max_entries); |
| 501 | |
| 502 | if (memlock) |
| 503 | jsonw_int_field(json_wtr, "bytes_memlock", atoi(memlock)); |
| 504 | free(memlock); |
| 505 | |
Quentin Monnet | 99a44bef | 2018-11-30 16:25:48 +0000 | [diff] [blame] | 506 | if (info->type == BPF_MAP_TYPE_PROG_ARRAY) { |
| 507 | char *owner_prog_type = get_fdinfo(fd, "owner_prog_type"); |
| 508 | char *owner_jited = get_fdinfo(fd, "owner_jited"); |
| 509 | |
| 510 | if (owner_prog_type) { |
| 511 | unsigned int prog_type = atoi(owner_prog_type); |
| 512 | |
Tobias Klauser | 9023497 | 2020-06-24 16:31:24 +0200 | [diff] [blame] | 513 | if (prog_type < prog_type_name_size) |
Quentin Monnet | 99a44bef | 2018-11-30 16:25:48 +0000 | [diff] [blame] | 514 | jsonw_string_field(json_wtr, "owner_prog_type", |
| 515 | prog_type_name[prog_type]); |
| 516 | else |
| 517 | jsonw_uint_field(json_wtr, "owner_prog_type", |
| 518 | prog_type); |
| 519 | } |
Jakub Kicinski | 8c79b35 | 2019-01-28 10:01:21 -0800 | [diff] [blame] | 520 | if (owner_jited) |
| 521 | jsonw_bool_field(json_wtr, "owner_jited", |
| 522 | !!atoi(owner_jited)); |
Quentin Monnet | 99a44bef | 2018-11-30 16:25:48 +0000 | [diff] [blame] | 523 | |
| 524 | free(owner_prog_type); |
| 525 | free(owner_jited); |
| 526 | } |
| 527 | close(fd); |
| 528 | |
Quentin Monnet | c354ff2 | 2019-08-21 09:52:18 +0100 | [diff] [blame] | 529 | if (frozen_str) { |
| 530 | frozen = atoi(frozen_str); |
| 531 | free(frozen_str); |
| 532 | } |
| 533 | jsonw_int_field(json_wtr, "frozen", frozen); |
| 534 | |
Prashant Bhole | d1b7725 | 2019-04-17 09:22:59 +0900 | [diff] [blame] | 535 | if (info->btf_id) |
| 536 | jsonw_int_field(json_wtr, "btf_id", info->btf_id); |
| 537 | |
Prashant Bhole | 4990f1f | 2017-11-08 13:55:48 +0900 | [diff] [blame] | 538 | if (!hash_empty(map_table.table)) { |
| 539 | struct pinned_obj *obj; |
| 540 | |
| 541 | jsonw_name(json_wtr, "pinned"); |
| 542 | jsonw_start_array(json_wtr); |
| 543 | hash_for_each_possible(map_table.table, obj, hash, info->id) { |
| 544 | if (obj->id == info->id) |
| 545 | jsonw_string(json_wtr, obj->path); |
| 546 | } |
| 547 | jsonw_end_array(json_wtr); |
| 548 | } |
| 549 | |
Andrii Nakryiko | d53dee3 | 2020-06-19 16:17:02 -0700 | [diff] [blame] | 550 | emit_obj_refs_json(&refs_table, info->id, json_wtr); |
| 551 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 552 | jsonw_end_object(json_wtr); |
| 553 | |
| 554 | return 0; |
| 555 | } |
| 556 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 557 | static void show_map_header_plain(struct bpf_map_info *info) |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 558 | { |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 559 | printf("%u: ", info->id); |
| 560 | if (info->type < ARRAY_SIZE(map_type_name)) |
| 561 | printf("%s ", map_type_name[info->type]); |
| 562 | else |
| 563 | printf("type %u ", info->type); |
| 564 | |
| 565 | if (*info->name) |
| 566 | printf("name %s ", info->name); |
| 567 | |
Jakub Kicinski | 064a07c | 2018-01-17 19:13:29 -0800 | [diff] [blame] | 568 | printf("flags 0x%x", info->map_flags); |
| 569 | print_dev_plain(info->ifindex, info->netns_dev, info->netns_ino); |
| 570 | printf("\n"); |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 571 | } |
| 572 | |
| 573 | static int show_map_close_plain(int fd, struct bpf_map_info *info) |
| 574 | { |
| 575 | char *memlock, *frozen_str; |
| 576 | int frozen = 0; |
| 577 | |
| 578 | memlock = get_fdinfo(fd, "memlock"); |
| 579 | frozen_str = get_fdinfo(fd, "frozen"); |
| 580 | |
| 581 | show_map_header_plain(info); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 582 | printf("\tkey %uB value %uB max_entries %u", |
| 583 | info->key_size, info->value_size, info->max_entries); |
| 584 | |
| 585 | if (memlock) |
| 586 | printf(" memlock %sB", memlock); |
| 587 | free(memlock); |
| 588 | |
Quentin Monnet | 99a44bef | 2018-11-30 16:25:48 +0000 | [diff] [blame] | 589 | if (info->type == BPF_MAP_TYPE_PROG_ARRAY) { |
| 590 | char *owner_prog_type = get_fdinfo(fd, "owner_prog_type"); |
| 591 | char *owner_jited = get_fdinfo(fd, "owner_jited"); |
| 592 | |
Jakub Kicinski | 8c79b35 | 2019-01-28 10:01:21 -0800 | [diff] [blame] | 593 | if (owner_prog_type || owner_jited) |
| 594 | printf("\n\t"); |
Quentin Monnet | 99a44bef | 2018-11-30 16:25:48 +0000 | [diff] [blame] | 595 | if (owner_prog_type) { |
| 596 | unsigned int prog_type = atoi(owner_prog_type); |
| 597 | |
Tobias Klauser | 9023497 | 2020-06-24 16:31:24 +0200 | [diff] [blame] | 598 | if (prog_type < prog_type_name_size) |
Quentin Monnet | 99a44bef | 2018-11-30 16:25:48 +0000 | [diff] [blame] | 599 | printf("owner_prog_type %s ", |
| 600 | prog_type_name[prog_type]); |
| 601 | else |
| 602 | printf("owner_prog_type %d ", prog_type); |
| 603 | } |
Jakub Kicinski | 8c79b35 | 2019-01-28 10:01:21 -0800 | [diff] [blame] | 604 | if (owner_jited) |
| 605 | printf("owner%s jited", |
| 606 | atoi(owner_jited) ? "" : " not"); |
Quentin Monnet | 99a44bef | 2018-11-30 16:25:48 +0000 | [diff] [blame] | 607 | |
| 608 | free(owner_prog_type); |
| 609 | free(owner_jited); |
| 610 | } |
| 611 | close(fd); |
| 612 | |
Prashant Bhole | 4990f1f | 2017-11-08 13:55:48 +0900 | [diff] [blame] | 613 | if (!hash_empty(map_table.table)) { |
| 614 | struct pinned_obj *obj; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 615 | |
Prashant Bhole | 4990f1f | 2017-11-08 13:55:48 +0900 | [diff] [blame] | 616 | hash_for_each_possible(map_table.table, obj, hash, info->id) { |
| 617 | if (obj->id == info->id) |
Prashant Bhole | d459b59 | 2019-04-17 09:22:58 +0900 | [diff] [blame] | 618 | printf("\n\tpinned %s", obj->path); |
Prashant Bhole | 4990f1f | 2017-11-08 13:55:48 +0900 | [diff] [blame] | 619 | } |
| 620 | } |
Quentin Monnet | c354ff2 | 2019-08-21 09:52:18 +0100 | [diff] [blame] | 621 | printf("\n"); |
| 622 | |
| 623 | if (frozen_str) { |
| 624 | frozen = atoi(frozen_str); |
| 625 | free(frozen_str); |
| 626 | } |
| 627 | |
| 628 | if (!info->btf_id && !frozen) |
| 629 | return 0; |
| 630 | |
| 631 | printf("\t"); |
Prashant Bhole | d459b59 | 2019-04-17 09:22:58 +0900 | [diff] [blame] | 632 | |
Prashant Bhole | d1b7725 | 2019-04-17 09:22:59 +0900 | [diff] [blame] | 633 | if (info->btf_id) |
Quentin Monnet | c354ff2 | 2019-08-21 09:52:18 +0100 | [diff] [blame] | 634 | printf("btf_id %d", info->btf_id); |
| 635 | |
| 636 | if (frozen) |
| 637 | printf("%sfrozen", info->btf_id ? " " : ""); |
Prashant Bhole | d1b7725 | 2019-04-17 09:22:59 +0900 | [diff] [blame] | 638 | |
Andrii Nakryiko | d53dee3 | 2020-06-19 16:17:02 -0700 | [diff] [blame] | 639 | emit_obj_refs_plain(&refs_table, info->id, "\n\tpids "); |
| 640 | |
Prashant Bhole | d459b59 | 2019-04-17 09:22:58 +0900 | [diff] [blame] | 641 | printf("\n"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 642 | return 0; |
| 643 | } |
| 644 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 645 | static int do_show_subset(int argc, char **argv) |
| 646 | { |
| 647 | struct bpf_map_info info = {}; |
| 648 | __u32 len = sizeof(info); |
| 649 | int *fds = NULL; |
| 650 | int nb_fds, i; |
| 651 | int err = -1; |
| 652 | |
| 653 | fds = malloc(sizeof(int)); |
| 654 | if (!fds) { |
| 655 | p_err("mem alloc failed"); |
| 656 | return -1; |
| 657 | } |
| 658 | nb_fds = map_parse_fds(&argc, &argv, &fds); |
| 659 | if (nb_fds < 1) |
| 660 | goto exit_free; |
| 661 | |
| 662 | if (json_output && nb_fds > 1) |
| 663 | jsonw_start_array(json_wtr); /* root array */ |
| 664 | for (i = 0; i < nb_fds; i++) { |
| 665 | err = bpf_obj_get_info_by_fd(fds[i], &info, &len); |
| 666 | if (err) { |
| 667 | p_err("can't get map info: %s", |
| 668 | strerror(errno)); |
| 669 | for (; i < nb_fds; i++) |
| 670 | close(fds[i]); |
| 671 | break; |
| 672 | } |
| 673 | |
| 674 | if (json_output) |
| 675 | show_map_close_json(fds[i], &info); |
| 676 | else |
| 677 | show_map_close_plain(fds[i], &info); |
| 678 | |
| 679 | close(fds[i]); |
| 680 | } |
| 681 | if (json_output && nb_fds > 1) |
| 682 | jsonw_end_array(json_wtr); /* root array */ |
| 683 | |
| 684 | exit_free: |
| 685 | free(fds); |
| 686 | return err; |
| 687 | } |
| 688 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 689 | static int do_show(int argc, char **argv) |
| 690 | { |
| 691 | struct bpf_map_info info = {}; |
| 692 | __u32 len = sizeof(info); |
| 693 | __u32 id = 0; |
| 694 | int err; |
| 695 | int fd; |
| 696 | |
Prashant Bhole | c541b73 | 2017-11-08 13:55:49 +0900 | [diff] [blame] | 697 | if (show_pinned) |
| 698 | build_pinned_obj_table(&map_table, BPF_OBJ_MAP); |
Andrii Nakryiko | d53dee3 | 2020-06-19 16:17:02 -0700 | [diff] [blame] | 699 | build_obj_refs_table(&refs_table, BPF_OBJ_MAP); |
Prashant Bhole | 4990f1f | 2017-11-08 13:55:48 +0900 | [diff] [blame] | 700 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 701 | if (argc == 2) |
| 702 | return do_show_subset(argc, argv); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 703 | |
| 704 | if (argc) |
| 705 | return BAD_ARG(); |
| 706 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 707 | if (json_output) |
| 708 | jsonw_start_array(json_wtr); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 709 | while (true) { |
| 710 | err = bpf_map_get_next_id(id, &id); |
| 711 | if (err) { |
| 712 | if (errno == ENOENT) |
| 713 | break; |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 714 | p_err("can't get next map: %s%s", strerror(errno), |
| 715 | errno == EINVAL ? " -- kernel too old?" : ""); |
Jakub Kicinski | b3b1b65 | 2017-12-22 11:36:05 -0800 | [diff] [blame] | 716 | break; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 717 | } |
| 718 | |
| 719 | fd = bpf_map_get_fd_by_id(id); |
| 720 | if (fd < 0) { |
Jakub Kicinski | 8207c6d | 2017-12-22 11:36:06 -0800 | [diff] [blame] | 721 | if (errno == ENOENT) |
| 722 | continue; |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 723 | p_err("can't get map by id (%u): %s", |
| 724 | id, strerror(errno)); |
Jakub Kicinski | b3b1b65 | 2017-12-22 11:36:05 -0800 | [diff] [blame] | 725 | break; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 726 | } |
| 727 | |
| 728 | err = bpf_obj_get_info_by_fd(fd, &info, &len); |
| 729 | if (err) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 730 | p_err("can't get map info: %s", strerror(errno)); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 731 | close(fd); |
Jakub Kicinski | b3b1b65 | 2017-12-22 11:36:05 -0800 | [diff] [blame] | 732 | break; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 733 | } |
| 734 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 735 | if (json_output) |
| 736 | show_map_close_json(fd, &info); |
| 737 | else |
| 738 | show_map_close_plain(fd, &info); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 739 | } |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 740 | if (json_output) |
| 741 | jsonw_end_array(json_wtr); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 742 | |
Andrii Nakryiko | d53dee3 | 2020-06-19 16:17:02 -0700 | [diff] [blame] | 743 | delete_obj_refs_table(&refs_table); |
| 744 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 745 | return errno == ENOENT ? 0 : -1; |
| 746 | } |
| 747 | |
Prashant Bhole | 18a781d | 2018-10-09 10:04:51 +0900 | [diff] [blame] | 748 | static int dump_map_elem(int fd, void *key, void *value, |
| 749 | struct bpf_map_info *map_info, struct btf *btf, |
| 750 | json_writer_t *btf_wtr) |
| 751 | { |
Quentin Monnet | a20693b | 2020-09-10 11:26:50 +0100 | [diff] [blame] | 752 | if (bpf_map_lookup_elem(fd, key, value)) { |
| 753 | print_entry_error(map_info, key, errno); |
| 754 | return -1; |
Prashant Bhole | 18a781d | 2018-10-09 10:04:51 +0900 | [diff] [blame] | 755 | } |
| 756 | |
Prashant Bhole | 18a781d | 2018-10-09 10:04:51 +0900 | [diff] [blame] | 757 | if (json_output) { |
Quentin Monnet | a20693b | 2020-09-10 11:26:50 +0100 | [diff] [blame] | 758 | print_entry_json(map_info, key, value, btf); |
| 759 | } else if (btf) { |
| 760 | struct btf_dumper d = { |
| 761 | .btf = btf, |
| 762 | .jw = btf_wtr, |
| 763 | .is_plain_text = true, |
| 764 | }; |
| 765 | |
| 766 | do_dump_btf(&d, map_info, key, value); |
Prashant Bhole | 18a781d | 2018-10-09 10:04:51 +0900 | [diff] [blame] | 767 | } else { |
Quentin Monnet | a20693b | 2020-09-10 11:26:50 +0100 | [diff] [blame] | 768 | print_entry_plain(map_info, key, value); |
Prashant Bhole | 18a781d | 2018-10-09 10:04:51 +0900 | [diff] [blame] | 769 | } |
| 770 | |
| 771 | return 0; |
| 772 | } |
| 773 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 774 | static int maps_have_btf(int *fds, int nb_fds) |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 775 | { |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 776 | struct bpf_map_info info = {}; |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 777 | __u32 len = sizeof(info); |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 778 | int err, i; |
| 779 | |
| 780 | for (i = 0; i < nb_fds; i++) { |
| 781 | err = bpf_obj_get_info_by_fd(fds[i], &info, &len); |
| 782 | if (err) { |
| 783 | p_err("can't get map info: %s", strerror(errno)); |
Martin KaFai Lau | d7de726 | 2020-01-15 15:00:19 -0800 | [diff] [blame] | 784 | return -1; |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 785 | } |
| 786 | |
Martin KaFai Lau | d7de726 | 2020-01-15 15:00:19 -0800 | [diff] [blame] | 787 | if (!info.btf_id) |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 788 | return 0; |
| 789 | } |
| 790 | |
| 791 | return 1; |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 792 | } |
| 793 | |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 794 | static struct btf *btf_vmlinux; |
| 795 | |
| 796 | static struct btf *get_map_kv_btf(const struct bpf_map_info *info) |
| 797 | { |
| 798 | struct btf *btf = NULL; |
| 799 | |
| 800 | if (info->btf_vmlinux_value_type_id) { |
| 801 | if (!btf_vmlinux) { |
| 802 | btf_vmlinux = libbpf_find_kernel_btf(); |
| 803 | if (IS_ERR(btf_vmlinux)) |
| 804 | p_err("failed to get kernel btf"); |
| 805 | } |
| 806 | return btf_vmlinux; |
| 807 | } else if (info->btf_value_type_id) { |
| 808 | int err; |
| 809 | |
| 810 | err = btf__get_from_id(info->btf_id, &btf); |
| 811 | if (err || !btf) { |
| 812 | p_err("failed to get btf"); |
| 813 | btf = err ? ERR_PTR(err) : ERR_PTR(-ESRCH); |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | return btf; |
| 818 | } |
| 819 | |
| 820 | static void free_map_kv_btf(struct btf *btf) |
| 821 | { |
| 822 | if (!IS_ERR(btf) && btf != btf_vmlinux) |
| 823 | btf__free(btf); |
| 824 | } |
| 825 | |
| 826 | static void free_btf_vmlinux(void) |
| 827 | { |
| 828 | if (!IS_ERR(btf_vmlinux)) |
| 829 | btf__free(btf_vmlinux); |
| 830 | } |
| 831 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 832 | static int |
| 833 | map_dump(int fd, struct bpf_map_info *info, json_writer_t *wtr, |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 834 | bool show_header) |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 835 | { |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 836 | void *key, *value, *prev_key; |
| 837 | unsigned int num_elems = 0; |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 838 | struct btf *btf = NULL; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 839 | int err; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 840 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 841 | key = malloc(info->key_size); |
| 842 | value = alloc_value(info); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 843 | if (!key || !value) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 844 | p_err("mem alloc failed"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 845 | err = -1; |
| 846 | goto exit_free; |
| 847 | } |
| 848 | |
| 849 | prev_key = NULL; |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 850 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 851 | if (wtr) { |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 852 | btf = get_map_kv_btf(info); |
| 853 | if (IS_ERR(btf)) { |
| 854 | err = PTR_ERR(btf); |
| 855 | goto exit_free; |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 856 | } |
| 857 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 858 | if (show_header) { |
| 859 | jsonw_start_object(wtr); /* map object */ |
| 860 | show_map_header_json(info, wtr); |
| 861 | jsonw_name(wtr, "elements"); |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 862 | } |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 863 | jsonw_start_array(wtr); /* elements */ |
| 864 | } else if (show_header) { |
| 865 | show_map_header_plain(info); |
| 866 | } |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 867 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 868 | if (info->type == BPF_MAP_TYPE_REUSEPORT_SOCKARRAY && |
| 869 | info->value_size != 8) |
Benjamin Poirier | 3da6e7e | 2019-04-15 16:15:36 +0900 | [diff] [blame] | 870 | p_info("Warning: cannot read values from %s map with value_size != 8", |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 871 | map_type_name[info->type]); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 872 | while (true) { |
| 873 | err = bpf_map_get_next_key(fd, prev_key, key); |
| 874 | if (err) { |
| 875 | if (errno == ENOENT) |
| 876 | err = 0; |
| 877 | break; |
| 878 | } |
Quentin Monnet | a20693b | 2020-09-10 11:26:50 +0100 | [diff] [blame] | 879 | if (!dump_map_elem(fd, key, value, info, btf, wtr)) |
| 880 | num_elems++; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 881 | prev_key = key; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 882 | } |
| 883 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 884 | if (wtr) { |
| 885 | jsonw_end_array(wtr); /* elements */ |
| 886 | if (show_header) |
| 887 | jsonw_end_object(wtr); /* map object */ |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 888 | } else { |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 889 | printf("Found %u element%s\n", num_elems, |
| 890 | num_elems != 1 ? "s" : ""); |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 891 | } |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 892 | |
| 893 | exit_free: |
| 894 | free(key); |
| 895 | free(value); |
| 896 | close(fd); |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 897 | free_map_kv_btf(btf); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 898 | |
| 899 | return err; |
| 900 | } |
| 901 | |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 902 | static int do_dump(int argc, char **argv) |
| 903 | { |
| 904 | json_writer_t *wtr = NULL, *btf_wtr = NULL; |
| 905 | struct bpf_map_info info = {}; |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 906 | int nb_fds, i = 0; |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 907 | __u32 len = sizeof(info); |
| 908 | int *fds = NULL; |
| 909 | int err = -1; |
| 910 | |
| 911 | if (argc != 2) |
| 912 | usage(); |
| 913 | |
| 914 | fds = malloc(sizeof(int)); |
| 915 | if (!fds) { |
| 916 | p_err("mem alloc failed"); |
| 917 | return -1; |
| 918 | } |
| 919 | nb_fds = map_parse_fds(&argc, &argv, &fds); |
| 920 | if (nb_fds < 1) |
| 921 | goto exit_free; |
| 922 | |
| 923 | if (json_output) { |
| 924 | wtr = json_wtr; |
| 925 | } else { |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 926 | int do_plain_btf; |
| 927 | |
| 928 | do_plain_btf = maps_have_btf(fds, nb_fds); |
| 929 | if (do_plain_btf < 0) |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 930 | goto exit_close; |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 931 | |
| 932 | if (do_plain_btf) { |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 933 | btf_wtr = get_btf_writer(); |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 934 | wtr = btf_wtr; |
| 935 | if (!btf_wtr) |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 936 | p_info("failed to create json writer for btf. falling back to plain output"); |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 937 | } |
| 938 | } |
| 939 | |
| 940 | if (wtr && nb_fds > 1) |
| 941 | jsonw_start_array(wtr); /* root array */ |
| 942 | for (i = 0; i < nb_fds; i++) { |
| 943 | if (bpf_obj_get_info_by_fd(fds[i], &info, &len)) { |
| 944 | p_err("can't get map info: %s", strerror(errno)); |
| 945 | break; |
| 946 | } |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 947 | err = map_dump(fds[i], &info, wtr, nb_fds > 1); |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 948 | if (!wtr && i != nb_fds - 1) |
| 949 | printf("\n"); |
| 950 | |
| 951 | if (err) |
| 952 | break; |
| 953 | close(fds[i]); |
| 954 | } |
| 955 | if (wtr && nb_fds > 1) |
| 956 | jsonw_end_array(wtr); /* root array */ |
| 957 | |
Martin KaFai Lau | 188a4866 | 2020-01-15 15:00:25 -0800 | [diff] [blame] | 958 | if (btf_wtr) |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 959 | jsonw_destroy(&btf_wtr); |
| 960 | exit_close: |
| 961 | for (; i < nb_fds; i++) |
| 962 | close(fds[i]); |
| 963 | exit_free: |
| 964 | free(fds); |
Martin KaFai Lau | 4e1ea332 | 2020-01-15 15:00:44 -0800 | [diff] [blame] | 965 | free_btf_vmlinux(); |
Paul Chaignon | 99f9863 | 2019-12-13 20:10:37 +0100 | [diff] [blame] | 966 | return err; |
| 967 | } |
| 968 | |
Stanislav Fomichev | 7d7209c | 2019-01-16 11:09:59 -0800 | [diff] [blame] | 969 | static int alloc_key_value(struct bpf_map_info *info, void **key, void **value) |
| 970 | { |
| 971 | *key = NULL; |
| 972 | *value = NULL; |
| 973 | |
| 974 | if (info->key_size) { |
| 975 | *key = malloc(info->key_size); |
| 976 | if (!*key) { |
| 977 | p_err("key mem alloc failed"); |
| 978 | return -1; |
| 979 | } |
| 980 | } |
| 981 | |
| 982 | if (info->value_size) { |
| 983 | *value = alloc_value(info); |
| 984 | if (!*value) { |
| 985 | p_err("value mem alloc failed"); |
| 986 | free(*key); |
| 987 | *key = NULL; |
| 988 | return -1; |
| 989 | } |
| 990 | } |
| 991 | |
| 992 | return 0; |
| 993 | } |
| 994 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 995 | static int do_update(int argc, char **argv) |
| 996 | { |
| 997 | struct bpf_map_info info = {}; |
| 998 | __u32 len = sizeof(info); |
| 999 | __u32 *value_fd = NULL; |
| 1000 | __u32 flags = BPF_ANY; |
| 1001 | void *key, *value; |
| 1002 | int fd, err; |
| 1003 | |
| 1004 | if (argc < 2) |
| 1005 | usage(); |
| 1006 | |
| 1007 | fd = map_parse_fd_and_info(&argc, &argv, &info, &len); |
| 1008 | if (fd < 0) |
| 1009 | return -1; |
| 1010 | |
Stanislav Fomichev | 7d7209c | 2019-01-16 11:09:59 -0800 | [diff] [blame] | 1011 | err = alloc_key_value(&info, &key, &value); |
| 1012 | if (err) |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1013 | goto exit_free; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1014 | |
| 1015 | err = parse_elem(argv, &info, key, value, info.key_size, |
| 1016 | info.value_size, &flags, &value_fd); |
| 1017 | if (err) |
| 1018 | goto exit_free; |
| 1019 | |
| 1020 | err = bpf_map_update_elem(fd, key, value, flags); |
| 1021 | if (err) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 1022 | p_err("update failed: %s", strerror(errno)); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1023 | goto exit_free; |
| 1024 | } |
| 1025 | |
| 1026 | exit_free: |
| 1027 | if (value_fd) |
| 1028 | close(*value_fd); |
| 1029 | free(key); |
| 1030 | free(value); |
| 1031 | close(fd); |
| 1032 | |
Quentin Monnet | 004b45c | 2017-10-23 09:24:14 -0700 | [diff] [blame] | 1033 | if (!err && json_output) |
| 1034 | jsonw_null(json_wtr); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1035 | return err; |
| 1036 | } |
| 1037 | |
Stanislav Fomichev | 74f312e | 2019-01-16 11:10:04 -0800 | [diff] [blame] | 1038 | static void print_key_value(struct bpf_map_info *info, void *key, |
| 1039 | void *value) |
| 1040 | { |
| 1041 | json_writer_t *btf_wtr; |
| 1042 | struct btf *btf = NULL; |
| 1043 | int err; |
| 1044 | |
| 1045 | err = btf__get_from_id(info->btf_id, &btf); |
| 1046 | if (err) { |
| 1047 | p_err("failed to get btf"); |
| 1048 | return; |
| 1049 | } |
| 1050 | |
| 1051 | if (json_output) { |
| 1052 | print_entry_json(info, key, value, btf); |
| 1053 | } else if (btf) { |
| 1054 | /* if here json_wtr wouldn't have been initialised, |
| 1055 | * so let's create separate writer for btf |
| 1056 | */ |
| 1057 | btf_wtr = get_btf_writer(); |
| 1058 | if (!btf_wtr) { |
| 1059 | p_info("failed to create json writer for btf. falling back to plain output"); |
| 1060 | btf__free(btf); |
| 1061 | btf = NULL; |
| 1062 | print_entry_plain(info, key, value); |
| 1063 | } else { |
| 1064 | struct btf_dumper d = { |
| 1065 | .btf = btf, |
| 1066 | .jw = btf_wtr, |
| 1067 | .is_plain_text = true, |
| 1068 | }; |
| 1069 | |
| 1070 | do_dump_btf(&d, info, key, value); |
| 1071 | jsonw_destroy(&btf_wtr); |
| 1072 | } |
| 1073 | } else { |
| 1074 | print_entry_plain(info, key, value); |
| 1075 | } |
| 1076 | btf__free(btf); |
| 1077 | } |
| 1078 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1079 | static int do_lookup(int argc, char **argv) |
| 1080 | { |
| 1081 | struct bpf_map_info info = {}; |
| 1082 | __u32 len = sizeof(info); |
| 1083 | void *key, *value; |
| 1084 | int err; |
| 1085 | int fd; |
| 1086 | |
| 1087 | if (argc < 2) |
| 1088 | usage(); |
| 1089 | |
| 1090 | fd = map_parse_fd_and_info(&argc, &argv, &info, &len); |
| 1091 | if (fd < 0) |
| 1092 | return -1; |
| 1093 | |
Stanislav Fomichev | 8a89fff | 2019-01-16 11:10:00 -0800 | [diff] [blame] | 1094 | err = alloc_key_value(&info, &key, &value); |
| 1095 | if (err) |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1096 | goto exit_free; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1097 | |
| 1098 | err = parse_elem(argv, &info, key, NULL, info.key_size, 0, NULL, NULL); |
| 1099 | if (err) |
| 1100 | goto exit_free; |
| 1101 | |
| 1102 | err = bpf_map_lookup_elem(fd, key, value); |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 1103 | if (err) { |
| 1104 | if (errno == ENOENT) { |
| 1105 | if (json_output) { |
| 1106 | jsonw_null(json_wtr); |
| 1107 | } else { |
| 1108 | printf("key:\n"); |
| 1109 | fprint_hex(stdout, key, info.key_size, " "); |
| 1110 | printf("\n\nNot found\n"); |
| 1111 | } |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 1112 | } else { |
Okash Khawaja | 2d3feca | 2018-07-13 21:57:04 -0700 | [diff] [blame] | 1113 | p_err("lookup failed: %s", strerror(errno)); |
| 1114 | } |
| 1115 | |
| 1116 | goto exit_free; |
| 1117 | } |
| 1118 | |
| 1119 | /* here means bpf_map_lookup_elem() succeeded */ |
Stanislav Fomichev | 74f312e | 2019-01-16 11:10:04 -0800 | [diff] [blame] | 1120 | print_key_value(&info, key, value); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1121 | |
| 1122 | exit_free: |
| 1123 | free(key); |
| 1124 | free(value); |
| 1125 | close(fd); |
| 1126 | |
| 1127 | return err; |
| 1128 | } |
| 1129 | |
| 1130 | static int do_getnext(int argc, char **argv) |
| 1131 | { |
| 1132 | struct bpf_map_info info = {}; |
| 1133 | __u32 len = sizeof(info); |
| 1134 | void *key, *nextkey; |
| 1135 | int err; |
| 1136 | int fd; |
| 1137 | |
| 1138 | if (argc < 2) |
| 1139 | usage(); |
| 1140 | |
| 1141 | fd = map_parse_fd_and_info(&argc, &argv, &info, &len); |
| 1142 | if (fd < 0) |
| 1143 | return -1; |
| 1144 | |
| 1145 | key = malloc(info.key_size); |
| 1146 | nextkey = malloc(info.key_size); |
| 1147 | if (!key || !nextkey) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 1148 | p_err("mem alloc failed"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1149 | err = -1; |
| 1150 | goto exit_free; |
| 1151 | } |
| 1152 | |
| 1153 | if (argc) { |
| 1154 | err = parse_elem(argv, &info, key, NULL, info.key_size, 0, |
| 1155 | NULL, NULL); |
| 1156 | if (err) |
| 1157 | goto exit_free; |
| 1158 | } else { |
| 1159 | free(key); |
| 1160 | key = NULL; |
| 1161 | } |
| 1162 | |
| 1163 | err = bpf_map_get_next_key(fd, key, nextkey); |
| 1164 | if (err) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 1165 | p_err("can't get next key: %s", strerror(errno)); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1166 | goto exit_free; |
| 1167 | } |
| 1168 | |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 1169 | if (json_output) { |
| 1170 | jsonw_start_object(json_wtr); |
| 1171 | if (key) { |
| 1172 | jsonw_name(json_wtr, "key"); |
| 1173 | print_hex_data_json(key, info.key_size); |
| 1174 | } else { |
| 1175 | jsonw_null_field(json_wtr, "key"); |
| 1176 | } |
| 1177 | jsonw_name(json_wtr, "next_key"); |
| 1178 | print_hex_data_json(nextkey, info.key_size); |
| 1179 | jsonw_end_object(json_wtr); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1180 | } else { |
Quentin Monnet | 831a0aa | 2017-10-23 09:24:11 -0700 | [diff] [blame] | 1181 | if (key) { |
| 1182 | printf("key:\n"); |
| 1183 | fprint_hex(stdout, key, info.key_size, " "); |
| 1184 | printf("\n"); |
| 1185 | } else { |
| 1186 | printf("key: None\n"); |
| 1187 | } |
| 1188 | printf("next key:\n"); |
| 1189 | fprint_hex(stdout, nextkey, info.key_size, " "); |
| 1190 | printf("\n"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1191 | } |
| 1192 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1193 | exit_free: |
| 1194 | free(nextkey); |
| 1195 | free(key); |
| 1196 | close(fd); |
| 1197 | |
| 1198 | return err; |
| 1199 | } |
| 1200 | |
| 1201 | static int do_delete(int argc, char **argv) |
| 1202 | { |
| 1203 | struct bpf_map_info info = {}; |
| 1204 | __u32 len = sizeof(info); |
| 1205 | void *key; |
| 1206 | int err; |
| 1207 | int fd; |
| 1208 | |
| 1209 | if (argc < 2) |
| 1210 | usage(); |
| 1211 | |
| 1212 | fd = map_parse_fd_and_info(&argc, &argv, &info, &len); |
| 1213 | if (fd < 0) |
| 1214 | return -1; |
| 1215 | |
| 1216 | key = malloc(info.key_size); |
| 1217 | if (!key) { |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 1218 | p_err("mem alloc failed"); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1219 | err = -1; |
| 1220 | goto exit_free; |
| 1221 | } |
| 1222 | |
| 1223 | err = parse_elem(argv, &info, key, NULL, info.key_size, 0, NULL, NULL); |
| 1224 | if (err) |
| 1225 | goto exit_free; |
| 1226 | |
| 1227 | err = bpf_map_delete_elem(fd, key); |
| 1228 | if (err) |
Quentin Monnet | 9a5ab8b | 2017-10-23 09:24:13 -0700 | [diff] [blame] | 1229 | p_err("delete failed: %s", strerror(errno)); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1230 | |
| 1231 | exit_free: |
| 1232 | free(key); |
| 1233 | close(fd); |
| 1234 | |
Quentin Monnet | 004b45c | 2017-10-23 09:24:14 -0700 | [diff] [blame] | 1235 | if (!err && json_output) |
| 1236 | jsonw_null(json_wtr); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1237 | return err; |
| 1238 | } |
| 1239 | |
| 1240 | static int do_pin(int argc, char **argv) |
| 1241 | { |
Quentin Monnet | 004b45c | 2017-10-23 09:24:14 -0700 | [diff] [blame] | 1242 | int err; |
| 1243 | |
Quentin Monnet | 75a1e79 | 2020-03-12 18:46:07 +0000 | [diff] [blame] | 1244 | err = do_pin_any(argc, argv, map_parse_fd); |
Quentin Monnet | 004b45c | 2017-10-23 09:24:14 -0700 | [diff] [blame] | 1245 | if (!err && json_output) |
| 1246 | jsonw_null(json_wtr); |
| 1247 | return err; |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1248 | } |
| 1249 | |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1250 | static int do_create(int argc, char **argv) |
| 1251 | { |
| 1252 | struct bpf_create_map_attr attr = { NULL, }; |
| 1253 | const char *pinfile; |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1254 | int err = -1, fd; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1255 | |
| 1256 | if (!REQ_ARGS(7)) |
| 1257 | return -1; |
| 1258 | pinfile = GET_ARG(); |
| 1259 | |
| 1260 | while (argc) { |
| 1261 | if (!REQ_ARGS(2)) |
| 1262 | return -1; |
| 1263 | |
| 1264 | if (is_prefix(*argv, "type")) { |
| 1265 | NEXT_ARG(); |
| 1266 | |
| 1267 | if (attr.map_type) { |
| 1268 | p_err("map type already specified"); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1269 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1270 | } |
| 1271 | |
| 1272 | attr.map_type = map_type_from_str(*argv); |
| 1273 | if ((int)attr.map_type < 0) { |
| 1274 | p_err("unrecognized map type: %s", *argv); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1275 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1276 | } |
| 1277 | NEXT_ARG(); |
| 1278 | } else if (is_prefix(*argv, "name")) { |
| 1279 | NEXT_ARG(); |
| 1280 | attr.name = GET_ARG(); |
| 1281 | } else if (is_prefix(*argv, "key")) { |
| 1282 | if (parse_u32_arg(&argc, &argv, &attr.key_size, |
| 1283 | "key size")) |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1284 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1285 | } else if (is_prefix(*argv, "value")) { |
| 1286 | if (parse_u32_arg(&argc, &argv, &attr.value_size, |
| 1287 | "value size")) |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1288 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1289 | } else if (is_prefix(*argv, "entries")) { |
| 1290 | if (parse_u32_arg(&argc, &argv, &attr.max_entries, |
| 1291 | "max entries")) |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1292 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1293 | } else if (is_prefix(*argv, "flags")) { |
| 1294 | if (parse_u32_arg(&argc, &argv, &attr.map_flags, |
| 1295 | "flags")) |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1296 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1297 | } else if (is_prefix(*argv, "dev")) { |
| 1298 | NEXT_ARG(); |
| 1299 | |
| 1300 | if (attr.map_ifindex) { |
| 1301 | p_err("offload device already specified"); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1302 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1303 | } |
| 1304 | |
| 1305 | attr.map_ifindex = if_nametoindex(*argv); |
| 1306 | if (!attr.map_ifindex) { |
| 1307 | p_err("unrecognized netdevice '%s': %s", |
| 1308 | *argv, strerror(errno)); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1309 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1310 | } |
| 1311 | NEXT_ARG(); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1312 | } else if (is_prefix(*argv, "inner_map")) { |
| 1313 | struct bpf_map_info info = {}; |
| 1314 | __u32 len = sizeof(info); |
| 1315 | int inner_map_fd; |
| 1316 | |
| 1317 | NEXT_ARG(); |
| 1318 | if (!REQ_ARGS(2)) |
| 1319 | usage(); |
| 1320 | inner_map_fd = map_parse_fd_and_info(&argc, &argv, |
| 1321 | &info, &len); |
| 1322 | if (inner_map_fd < 0) |
| 1323 | return -1; |
| 1324 | attr.inner_map_fd = inner_map_fd; |
Alban Crequy | 8694d8c | 2019-04-12 14:40:50 +0200 | [diff] [blame] | 1325 | } else { |
| 1326 | p_err("unknown arg %s", *argv); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1327 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1328 | } |
| 1329 | } |
| 1330 | |
| 1331 | if (!attr.name) { |
| 1332 | p_err("map name not specified"); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1333 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1334 | } |
| 1335 | |
Quentin Monnet | 8302b9b | 2018-11-07 12:29:30 +0000 | [diff] [blame] | 1336 | set_max_rlimit(); |
| 1337 | |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1338 | fd = bpf_create_map_xattr(&attr); |
| 1339 | if (fd < 0) { |
| 1340 | p_err("map create failed: %s", strerror(errno)); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1341 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1342 | } |
| 1343 | |
| 1344 | err = do_pin_fd(fd, pinfile); |
| 1345 | close(fd); |
| 1346 | if (err) |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1347 | goto exit; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1348 | |
| 1349 | if (json_output) |
| 1350 | jsonw_null(json_wtr); |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1351 | |
| 1352 | exit: |
| 1353 | if (attr.inner_map_fd > 0) |
| 1354 | close(attr.inner_map_fd); |
| 1355 | |
| 1356 | return err; |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1357 | } |
| 1358 | |
Stanislav Fomichev | 74f312e | 2019-01-16 11:10:04 -0800 | [diff] [blame] | 1359 | static int do_pop_dequeue(int argc, char **argv) |
| 1360 | { |
| 1361 | struct bpf_map_info info = {}; |
| 1362 | __u32 len = sizeof(info); |
| 1363 | void *key, *value; |
| 1364 | int err; |
| 1365 | int fd; |
| 1366 | |
| 1367 | if (argc < 2) |
| 1368 | usage(); |
| 1369 | |
| 1370 | fd = map_parse_fd_and_info(&argc, &argv, &info, &len); |
| 1371 | if (fd < 0) |
| 1372 | return -1; |
| 1373 | |
| 1374 | err = alloc_key_value(&info, &key, &value); |
| 1375 | if (err) |
| 1376 | goto exit_free; |
| 1377 | |
| 1378 | err = bpf_map_lookup_and_delete_elem(fd, key, value); |
| 1379 | if (err) { |
| 1380 | if (errno == ENOENT) { |
| 1381 | if (json_output) |
| 1382 | jsonw_null(json_wtr); |
| 1383 | else |
| 1384 | printf("Error: empty map\n"); |
| 1385 | } else { |
| 1386 | p_err("pop failed: %s", strerror(errno)); |
| 1387 | } |
| 1388 | |
| 1389 | goto exit_free; |
| 1390 | } |
| 1391 | |
| 1392 | print_key_value(&info, key, value); |
| 1393 | |
| 1394 | exit_free: |
| 1395 | free(key); |
| 1396 | free(value); |
| 1397 | close(fd); |
| 1398 | |
| 1399 | return err; |
| 1400 | } |
| 1401 | |
Quentin Monnet | 0bb52b0 | 2019-08-21 09:52:19 +0100 | [diff] [blame] | 1402 | static int do_freeze(int argc, char **argv) |
| 1403 | { |
| 1404 | int err, fd; |
| 1405 | |
| 1406 | if (!REQ_ARGS(2)) |
| 1407 | return -1; |
| 1408 | |
| 1409 | fd = map_parse_fd(&argc, &argv); |
| 1410 | if (fd < 0) |
| 1411 | return -1; |
| 1412 | |
| 1413 | if (argc) { |
| 1414 | close(fd); |
| 1415 | return BAD_ARG(); |
| 1416 | } |
| 1417 | |
| 1418 | err = bpf_map_freeze(fd); |
| 1419 | close(fd); |
| 1420 | if (err) { |
| 1421 | p_err("failed to freeze map: %s", strerror(errno)); |
| 1422 | return err; |
| 1423 | } |
| 1424 | |
| 1425 | if (json_output) |
| 1426 | jsonw_null(json_wtr); |
| 1427 | |
| 1428 | return 0; |
| 1429 | } |
| 1430 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1431 | static int do_help(int argc, char **argv) |
| 1432 | { |
Quentin Monnet | 004b45c | 2017-10-23 09:24:14 -0700 | [diff] [blame] | 1433 | if (json_output) { |
| 1434 | jsonw_null(json_wtr); |
| 1435 | return 0; |
| 1436 | } |
| 1437 | |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1438 | fprintf(stderr, |
Quentin Monnet | 9004035 | 2020-05-23 02:07:51 +0100 | [diff] [blame] | 1439 | "Usage: %1$s %2$s { show | list } [MAP]\n" |
| 1440 | " %1$s %2$s create FILE type TYPE key KEY_SIZE value VALUE_SIZE \\\n" |
| 1441 | " entries MAX_ENTRIES name NAME [flags FLAGS] \\\n" |
Quentin Monnet | e3b9626 | 2020-09-10 11:26:52 +0100 | [diff] [blame] | 1442 | " [inner_map MAP] [dev NAME]\n" |
Quentin Monnet | 9004035 | 2020-05-23 02:07:51 +0100 | [diff] [blame] | 1443 | " %1$s %2$s dump MAP\n" |
| 1444 | " %1$s %2$s update MAP [key DATA] [value VALUE] [UPDATE_FLAGS]\n" |
| 1445 | " %1$s %2$s lookup MAP [key DATA]\n" |
| 1446 | " %1$s %2$s getnext MAP [key DATA]\n" |
| 1447 | " %1$s %2$s delete MAP key DATA\n" |
| 1448 | " %1$s %2$s pin MAP FILE\n" |
| 1449 | " %1$s %2$s event_pipe MAP [cpu N index M]\n" |
| 1450 | " %1$s %2$s peek MAP\n" |
| 1451 | " %1$s %2$s push MAP value VALUE\n" |
| 1452 | " %1$s %2$s pop MAP\n" |
| 1453 | " %1$s %2$s enqueue MAP value VALUE\n" |
| 1454 | " %1$s %2$s dequeue MAP\n" |
| 1455 | " %1$s %2$s freeze MAP\n" |
| 1456 | " %1$s %2$s help\n" |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1457 | "\n" |
Jakub Kicinski | 3ff5a4d | 2018-07-10 14:43:07 -0700 | [diff] [blame] | 1458 | " " HELP_SPEC_MAP "\n" |
Jakub Kicinski | c642ea2 | 2018-05-03 18:37:14 -0700 | [diff] [blame] | 1459 | " DATA := { [hex] BYTES }\n" |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1460 | " " HELP_SPEC_PROGRAM "\n" |
Jakub Kicinski | c642ea2 | 2018-05-03 18:37:14 -0700 | [diff] [blame] | 1461 | " VALUE := { DATA | MAP | PROG }\n" |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1462 | " UPDATE_FLAGS := { any | exist | noexist }\n" |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1463 | " TYPE := { hash | array | prog_array | perf_event_array | percpu_hash |\n" |
| 1464 | " percpu_array | stack_trace | cgroup_array | lru_hash |\n" |
| 1465 | " lru_percpu_hash | lpm_trie | array_of_maps | hash_of_maps |\n" |
Toke Høiland-Jørgensen | 1375dc4a | 2019-07-26 18:06:58 +0200 | [diff] [blame] | 1466 | " devmap | devmap_hash | sockmap | cpumap | xskmap | sockhash |\n" |
Quentin Monnet | c8caa0b | 2020-05-11 17:15:34 +0100 | [diff] [blame] | 1467 | " cgroup_storage | reuseport_sockarray | percpu_cgroup_storage |\n" |
KP Singh | 864ab06 | 2020-11-06 10:37:42 +0000 | [diff] [blame] | 1468 | " queue | stack | sk_storage | struct_ops | ringbuf | inode_storage |\n" |
| 1469 | " task_storage }\n" |
Quentin Monnet | 0641c3c | 2017-10-23 09:24:16 -0700 | [diff] [blame] | 1470 | " " HELP_SPEC_OPTIONS "\n" |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1471 | "", |
Quentin Monnet | 0bb52b0 | 2019-08-21 09:52:19 +0100 | [diff] [blame] | 1472 | bin_name, argv[-2]); |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1473 | |
| 1474 | return 0; |
| 1475 | } |
| 1476 | |
| 1477 | static const struct cmd cmds[] = { |
| 1478 | { "show", do_show }, |
Jakub Kicinski | 6ebe6db | 2018-01-02 14:48:36 -0800 | [diff] [blame] | 1479 | { "list", do_show }, |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1480 | { "help", do_help }, |
| 1481 | { "dump", do_dump }, |
| 1482 | { "update", do_update }, |
| 1483 | { "lookup", do_lookup }, |
| 1484 | { "getnext", do_getnext }, |
| 1485 | { "delete", do_delete }, |
| 1486 | { "pin", do_pin }, |
Jakub Kicinski | f412eed | 2018-05-03 18:37:16 -0700 | [diff] [blame] | 1487 | { "event_pipe", do_event_pipe }, |
Jakub Kicinski | 0b592b5a | 2018-10-15 16:30:36 -0700 | [diff] [blame] | 1488 | { "create", do_create }, |
Stanislav Fomichev | 66cf6e0 | 2019-01-16 11:10:02 -0800 | [diff] [blame] | 1489 | { "peek", do_lookup }, |
Stanislav Fomichev | 549d4d3 | 2019-01-16 11:10:03 -0800 | [diff] [blame] | 1490 | { "push", do_update }, |
| 1491 | { "enqueue", do_update }, |
Stanislav Fomichev | 74f312e | 2019-01-16 11:10:04 -0800 | [diff] [blame] | 1492 | { "pop", do_pop_dequeue }, |
| 1493 | { "dequeue", do_pop_dequeue }, |
Quentin Monnet | 0bb52b0 | 2019-08-21 09:52:19 +0100 | [diff] [blame] | 1494 | { "freeze", do_freeze }, |
Jakub Kicinski | 71bb428 | 2017-10-04 20:10:04 -0700 | [diff] [blame] | 1495 | { 0 } |
| 1496 | }; |
| 1497 | |
| 1498 | int do_map(int argc, char **argv) |
| 1499 | { |
| 1500 | return cmd_select(cmds, argc, argv, do_help); |
| 1501 | } |