| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #undef TRACE_SYSTEM |
| 3 | #define TRACE_SYSTEM net |
| 4 | |
| 5 | #if !defined(LTTNG_TRACE_NET_H) || defined(TRACE_HEADER_MULTI_READ) |
| 6 | #define LTTNG_TRACE_NET_H |
| 7 | |
| 8 | #include <probes/lttng-tracepoint-event.h> |
| 9 | #include <linux/skbuff.h> |
| 10 | #include <linux/netdevice.h> |
| 11 | #include <linux/ip.h> |
| 12 | #include <linux/ipv6.h> |
| 13 | #include <linux/tcp.h> |
| 14 | #include <linux/udp.h> |
| 15 | #include <linux/icmp.h> |
| 16 | #include <linux/version.h> |
| 17 | #include <lttng-endian.h> |
| 18 | #include <net/sock.h> |
| 19 | |
| 20 | #ifndef ONCE_LTTNG_NET_H |
| 21 | #define ONCE_LTTNG_NET_H |
| 22 | |
| 23 | static inline unsigned char __has_network_hdr(struct sk_buff *skb) |
| 24 | { |
| 25 | /* |
| 26 | * If the header is not set yet, the network header will point |
| 27 | * to the head. |
| 28 | */ |
| 29 | return skb_network_header(skb) != skb->head; |
| 30 | } |
| 31 | |
| 32 | static struct lttng_event_field emptyfields[] = { |
| 33 | }; |
| 34 | |
| 35 | /* Structures for transport headers. */ |
| 36 | |
| 37 | static struct lttng_event_field tcpfields[] = { |
| 38 | [0] = { |
| 39 | .name = "source_port", |
| 40 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 41 | __BIG_ENDIAN, 10, none), |
| 42 | }, |
| 43 | [1] = { |
| 44 | .name = "dest_port", |
| 45 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 46 | __BIG_ENDIAN, 10, none), |
| 47 | }, |
| 48 | [2] = { |
| 49 | .name = "seq", |
| 50 | .type = __type_integer(uint32_t, 0, 0, 0, |
| 51 | __BIG_ENDIAN, 10, none), |
| 52 | }, |
| 53 | [3] = { |
| 54 | .name = "ack_seq", |
| 55 | .type = __type_integer(uint32_t, 0, 0, 0, |
| 56 | __BIG_ENDIAN, 10, none), |
| 57 | }, |
| 58 | [4] = { |
| 59 | .name = "data_offset", |
| 60 | .type = __type_integer(uint8_t, 4, 4, 0, |
| 61 | __BIG_ENDIAN, 10, none), |
| 62 | }, |
| 63 | [5] = { |
| 64 | .name = "reserved", |
| 65 | .type = __type_integer(uint8_t, 3, 1, 0, |
| 66 | __BIG_ENDIAN, 10, none), |
| 67 | }, |
| 68 | [6] = { |
| 69 | .name = "flags", |
| 70 | .type = __type_integer(uint8_t, 9, 1, 0, |
| 71 | __BIG_ENDIAN, 16, none), |
| 72 | }, |
| 73 | [7] = { |
| 74 | .name = "window_size", |
| 75 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 76 | __BIG_ENDIAN, 10, none), |
| 77 | }, |
| 78 | [8] = { |
| 79 | .name = "checksum", |
| 80 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 81 | __BIG_ENDIAN, 16, none), |
| 82 | }, |
| 83 | [9] = { |
| 84 | .name = "urg_ptr", |
| 85 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 86 | __BIG_ENDIAN, 10, none), |
| 87 | }, |
| 88 | }; |
| 89 | |
| 90 | static struct lttng_event_field udpfields[] = { |
| 91 | [0] = { |
| 92 | .name = "source_port", |
| 93 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 94 | __BIG_ENDIAN, 10, none), |
| 95 | }, |
| 96 | [1] = { |
| 97 | .name = "dest_port", |
| 98 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 99 | __BIG_ENDIAN, 10, none), |
| 100 | }, |
| 101 | [2] = { |
| 102 | .name = "len", |
| 103 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 104 | __BIG_ENDIAN, 10, none), |
| 105 | }, |
| 106 | [3] = { |
| 107 | .name = "check", |
| 108 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 109 | __BIG_ENDIAN, 10, none), |
| 110 | }, |
| 111 | }; |
| 112 | |
| 113 | static struct lttng_event_field icmpfields[] = { |
| 114 | [0] = { |
| 115 | .name = "type", |
| 116 | .type = __type_integer(uint8_t, 0, 0, 0, |
| 117 | __BIG_ENDIAN, 10, none), |
| 118 | }, |
| 119 | [1] = { |
| 120 | .name = "code", |
| 121 | .type = __type_integer(uint8_t, 0, 0, 0, |
| 122 | __BIG_ENDIAN, 10, none), |
| 123 | }, |
| 124 | [2] = { |
| 125 | .name = "checksum", |
| 126 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 127 | __BIG_ENDIAN, 10, none), |
| 128 | }, |
| 129 | [3] = { |
| 130 | .name = "gateway", |
| 131 | .type = __type_integer(uint32_t, 0, 0, 0, |
| 132 | __BIG_ENDIAN, 10, none), |
| 133 | }, |
| 134 | }; |
| 135 | |
| 136 | |
| 137 | static struct lttng_event_field transport_fields[] = { |
| 138 | [0] = { |
| 139 | .name = "unknown", |
| 140 | .type = { |
| 141 | .atype = atype_struct, |
| 142 | .u._struct.nr_fields = ARRAY_SIZE(emptyfields), |
| 143 | .u._struct.fields = emptyfields, |
| 144 | }, |
| 145 | }, |
| 146 | [1] = { |
| 147 | .name = "tcp", |
| 148 | .type = { |
| 149 | .atype = atype_struct, |
| 150 | .u._struct.nr_fields = ARRAY_SIZE(tcpfields), |
| 151 | .u._struct.fields = tcpfields, |
| 152 | }, |
| 153 | }, |
| 154 | [2] = { |
| 155 | .name = "udp", |
| 156 | .type = { |
| 157 | .atype = atype_struct, |
| 158 | .u._struct.nr_fields = ARRAY_SIZE(udpfields), |
| 159 | .u._struct.fields = udpfields, |
| 160 | }, |
| 161 | }, |
| 162 | [3] = { |
| 163 | .name = "icmp", |
| 164 | .type = { |
| 165 | .atype = atype_struct, |
| 166 | .u._struct.nr_fields = ARRAY_SIZE(icmpfields), |
| 167 | .u._struct.fields = icmpfields, |
| 168 | }, |
| 169 | }, |
| 170 | }; |
| 171 | |
| 172 | enum transport_header_types { |
| 173 | TH_NONE = 0, |
| 174 | TH_TCP = 1, |
| 175 | TH_UDP = 2, |
| 176 | TH_ICMP = 3, |
| 177 | }; |
| 178 | |
| 179 | static inline enum transport_header_types __get_transport_header_type_ip(struct sk_buff *skb) |
| 180 | { |
| 181 | switch (ip_hdr(skb)->protocol) { |
| 182 | case IPPROTO_TCP: |
| 183 | return TH_TCP; |
| 184 | case IPPROTO_UDP: |
| 185 | return TH_UDP; |
| 186 | case IPPROTO_ICMP: |
| 187 | return TH_ICMP; |
| 188 | } |
| 189 | return TH_NONE; |
| 190 | } |
| 191 | |
| 192 | static inline enum transport_header_types __get_transport_header_type_ipv6(struct sk_buff *skb) |
| 193 | { |
| 194 | switch (ipv6_hdr(skb)->nexthdr) { |
| 195 | case IPPROTO_TCP: |
| 196 | return TH_TCP; |
| 197 | case IPPROTO_UDP: |
| 198 | return TH_UDP; |
| 199 | case IPPROTO_ICMP: |
| 200 | return TH_ICMP; |
| 201 | } |
| 202 | return TH_NONE; |
| 203 | } |
| 204 | |
| 205 | static inline enum transport_header_types __get_transport_header_type(struct sk_buff *skb) |
| 206 | { |
| 207 | if (__has_network_hdr(skb)) { |
| 208 | /* |
| 209 | * When both transport and network headers are set, |
| 210 | * transport header is greater than network header, |
| 211 | * otherwise it points to head. |
| 212 | */ |
| 213 | if (skb->transport_header > skb->network_header) { |
| 214 | /* |
| 215 | * Get the transport protocol from the network |
| 216 | * header's data. This method works both for |
| 217 | * sent and received packets. |
| 218 | */ |
| 219 | if (skb->protocol == htons(ETH_P_IP)) { |
| 220 | return __get_transport_header_type_ip(skb); |
| 221 | } else if(skb->protocol == htons(ETH_P_IPV6)) { |
| 222 | return __get_transport_header_type_ipv6(skb); |
| 223 | } |
| 224 | } |
| 225 | /* Fallthrough for other cases where header is not recognized. */ |
| 226 | } |
| 227 | return TH_NONE; |
| 228 | } |
| 229 | |
| 230 | static struct lttng_enum_entry proto_transport_enum_entries[] = { |
| 231 | [0] = { |
| 232 | .start = { .value = 0, .signedness = 0, }, |
| 233 | .end = { .value = IPPROTO_ICMP - 1, .signedness = 0, }, |
| 234 | .string = "_unknown", |
| 235 | }, |
| 236 | [1] = { |
| 237 | .start = { .value = IPPROTO_ICMP, .signedness = 0, }, |
| 238 | .end = { .value = IPPROTO_ICMP, .signedness = 0, }, |
| 239 | .string = "_icmp", |
| 240 | }, |
| 241 | [2] = { |
| 242 | .start = { .value = IPPROTO_ICMP + 1, .signedness = 0, }, |
| 243 | .end = { .value = IPPROTO_TCP - 1, .signedness = 0, }, |
| 244 | .string = "_unknown", |
| 245 | }, |
| 246 | [3] = { |
| 247 | .start = { .value = IPPROTO_TCP, .signedness = 0, }, |
| 248 | .end = { .value = IPPROTO_TCP, .signedness = 0, }, |
| 249 | .string = "_tcp", |
| 250 | }, |
| 251 | [4] = { |
| 252 | .start = { .value = IPPROTO_TCP + 1, .signedness = 0, }, |
| 253 | .end = { .value = IPPROTO_UDP - 1, .signedness = 0, }, |
| 254 | .string = "_unknown", |
| 255 | }, |
| 256 | [5] = { |
| 257 | .start = { .value = IPPROTO_UDP, .signedness = 0, }, |
| 258 | .end = { .value = IPPROTO_UDP, .signedness = 0, }, |
| 259 | .string = "_udp", |
| 260 | }, |
| 261 | [6] = { |
| 262 | .start = { .value = IPPROTO_UDP + 1, .signedness = 0, }, |
| 263 | .end = { .value = 255, .signedness = 0, }, |
| 264 | .string = "_unknown", |
| 265 | }, |
| 266 | }; |
| 267 | |
| 268 | static const struct lttng_enum_desc proto_transport_header_type = { |
| 269 | .name = "proto_transport_header_type", |
| 270 | .entries = proto_transport_enum_entries, |
| 271 | .nr_entries = ARRAY_SIZE(proto_transport_enum_entries), |
| 272 | }; |
| 273 | |
| 274 | static struct lttng_enum_entry transport_enum_entries[] = { |
| 275 | [0] = { |
| 276 | .start = { .value = TH_NONE, .signedness = 0, }, |
| 277 | .end = { .value = TH_NONE, .signedness = 0, }, |
| 278 | .string = "_unknown", |
| 279 | }, |
| 280 | [1] = { |
| 281 | .start = { .value = TH_TCP, .signedness = 0, }, |
| 282 | .end = { .value = TH_TCP, .signedness = 0, }, |
| 283 | .string = "_tcp", |
| 284 | }, |
| 285 | [2] = { |
| 286 | .start = { .value = TH_UDP, .signedness = 0, }, |
| 287 | .end = { .value = TH_UDP, .signedness = 0, }, |
| 288 | .string = "_udp", |
| 289 | }, |
| 290 | [3] = { |
| 291 | .start = { .value = TH_ICMP, .signedness = 0, }, |
| 292 | .end = { .value = TH_ICMP, .signedness = 0, }, |
| 293 | .string = "_icmp", |
| 294 | }, |
| 295 | }; |
| 296 | |
| 297 | static const struct lttng_enum_desc transport_header_type = { |
| 298 | .name = "transport_header_type", |
| 299 | .entries = transport_enum_entries, |
| 300 | .nr_entries = ARRAY_SIZE(transport_enum_entries), |
| 301 | }; |
| 302 | |
| 303 | /* Structures for network headers. */ |
| 304 | |
| 305 | static struct lttng_event_field ipv4fields[] = { |
| 306 | [0] = { |
| 307 | .name = "version", |
| 308 | .type = __type_integer(uint8_t, 4, 4, 0, |
| 309 | __BIG_ENDIAN, 10, none), |
| 310 | }, |
| 311 | [1] = { |
| 312 | .name = "ihl", |
| 313 | .type = __type_integer(uint8_t, 4, 4, 0, |
| 314 | __BIG_ENDIAN, 10, none), |
| 315 | }, |
| 316 | [2] = { |
| 317 | .name = "tos", |
| 318 | .type = __type_integer(uint8_t, 0, 0, 0, |
| 319 | __BIG_ENDIAN, 10, none), |
| 320 | }, |
| 321 | [3] = { |
| 322 | .name = "tot_len", |
| 323 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 324 | __BIG_ENDIAN, 10, none), |
| 325 | }, |
| 326 | [4] = { |
| 327 | .name = "id", |
| 328 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 329 | __BIG_ENDIAN, 16, none), |
| 330 | }, |
| 331 | [5] = { |
| 332 | .name = "frag_off", |
| 333 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 334 | __BIG_ENDIAN, 10, none), |
| 335 | }, |
| 336 | [6] = { |
| 337 | .name = "ttl", |
| 338 | .type = __type_integer(uint8_t, 0, 0, 0, |
| 339 | __BIG_ENDIAN, 10, none), |
| 340 | }, |
| 341 | [7] = { |
| 342 | .name = "protocol", |
| 343 | .type = { |
| 344 | .atype = atype_enum, |
| 345 | .u.basic.enumeration.desc = |
| 346 | &proto_transport_header_type, |
| 347 | .u.basic.enumeration.container_type = { |
| 348 | .size = 8, |
| 349 | .alignment = 8, |
| 350 | .signedness = 0, |
| 351 | .reverse_byte_order = |
| 352 | __BIG_ENDIAN != __BYTE_ORDER, |
| 353 | .base = 10, |
| 354 | .encoding = lttng_encode_none, |
| 355 | }, |
| 356 | }, |
| 357 | }, |
| 358 | [8] = { |
| 359 | .name = "checksum", |
| 360 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 361 | __BIG_ENDIAN, 16, none), |
| 362 | }, |
| 363 | [9] = { |
| 364 | .name = "saddr", |
| 365 | .type = { |
| 366 | .atype = atype_array, |
| 367 | .u.array.elem_type = |
| 368 | __type_integer(uint8_t, 0, 0, 0, |
| 369 | __BIG_ENDIAN, 10, none), |
| 370 | .u.array.length = 4, |
| 371 | .u.array.elem_alignment = lttng_alignof(uint8_t), |
| 372 | }, |
| 373 | }, |
| 374 | [10] = { |
| 375 | .name = "daddr", |
| 376 | .type = { |
| 377 | .atype = atype_array, |
| 378 | .u.array.elem_type = |
| 379 | __type_integer(uint8_t, 0, 0, 0, |
| 380 | __BIG_ENDIAN, 10, none), |
| 381 | .u.array.length = 4, |
| 382 | .u.array.elem_alignment = lttng_alignof(uint8_t), |
| 383 | }, |
| 384 | }, |
| 385 | [11] = { |
| 386 | .name = "transport_header_type", |
| 387 | .type = { |
| 388 | .atype = atype_enum, |
| 389 | .u.basic.enumeration.desc = &transport_header_type, |
| 390 | .u.basic.enumeration.container_type = { |
| 391 | .size = 8, |
| 392 | .alignment = 8, |
| 393 | .signedness = 0, |
| 394 | .reverse_byte_order = 0, |
| 395 | .base = 10, |
| 396 | .encoding = lttng_encode_none, |
| 397 | }, |
| 398 | }, |
| 399 | }, |
| 400 | [12] = { |
| 401 | .name = "transport_header", |
| 402 | .type = { |
| 403 | .atype = atype_variant, |
| 404 | .u.variant.tag_name = "transport_header_type", |
| 405 | .u.variant.choices = transport_fields, |
| 406 | .u.variant.nr_choices = ARRAY_SIZE(transport_fields), |
| 407 | }, |
| 408 | }, |
| 409 | }; |
| 410 | |
| 411 | static struct lttng_event_field ipv6fields[] = { |
| 412 | [0] = { |
| 413 | .name = "version", |
| 414 | .type = __type_integer(uint8_t, 4, 4, 0, |
| 415 | __BIG_ENDIAN, 10, none), |
| 416 | }, |
| 417 | [1] = { |
| 418 | .name = "prio", |
| 419 | .type = __type_integer(uint8_t, 4, 4, 0, |
| 420 | __BIG_ENDIAN, 10, none), |
| 421 | }, |
| 422 | [2] = { |
| 423 | .name = "flow_lbl", |
| 424 | .type = { |
| 425 | .atype = atype_array, |
| 426 | .u.array.elem_type = |
| 427 | __type_integer(uint8_t, 0, 0, 0, |
| 428 | __BIG_ENDIAN, 16, none), |
| 429 | .u.array.length = 3, |
| 430 | .u.array.elem_alignment = lttng_alignof(uint8_t), |
| 431 | }, |
| 432 | }, |
| 433 | [3] = { |
| 434 | .name = "payload_len", |
| 435 | .type = __type_integer(uint16_t, 0, 0, 0, |
| 436 | __BIG_ENDIAN, 10, none), |
| 437 | }, |
| 438 | [4] = { |
| 439 | .name = "nexthdr", |
| 440 | .type = { |
| 441 | .atype = atype_enum, |
| 442 | .u.basic.enumeration.desc = |
| 443 | &proto_transport_header_type, |
| 444 | .u.basic.enumeration.container_type = { |
| 445 | .size = 8, |
| 446 | .alignment = 8, |
| 447 | .signedness = 0, |
| 448 | .reverse_byte_order = |
| 449 | __BIG_ENDIAN != __BYTE_ORDER, |
| 450 | .base = 10, |
| 451 | .encoding = lttng_encode_none, |
| 452 | }, |
| 453 | }, |
| 454 | }, |
| 455 | [5] = { |
| 456 | .name = "hop_limit", |
| 457 | .type = __type_integer(uint8_t, 0, 0, 0, |
| 458 | __BIG_ENDIAN, 10, none), |
| 459 | }, |
| 460 | [6] = { |
| 461 | .name = "saddr", |
| 462 | .type = { |
| 463 | .atype = atype_array, |
| 464 | .u.array.elem_type = |
| 465 | __type_integer(uint16_t, 0, 0, 0, |
| 466 | __BIG_ENDIAN, 16, none), |
| 467 | .u.array.length = 8, |
| 468 | .u.array.elem_alignment = lttng_alignof(uint16_t), |
| 469 | }, |
| 470 | }, |
| 471 | [7] = { |
| 472 | .name = "daddr", |
| 473 | .type = { |
| 474 | .atype = atype_array, |
| 475 | .u.array.elem_type = |
| 476 | __type_integer(uint16_t, 0, 0, 0, |
| 477 | __BIG_ENDIAN, 16, none), |
| 478 | .u.array.length = 8, |
| 479 | .u.array.elem_alignment = lttng_alignof(uint16_t), |
| 480 | }, |
| 481 | }, |
| 482 | [8] = { |
| 483 | .name = "transport_header_type", |
| 484 | .type = { |
| 485 | .atype = atype_enum, |
| 486 | .u.basic.enumeration.desc = &transport_header_type, |
| 487 | .u.basic.enumeration.container_type = { |
| 488 | .size = 8, |
| 489 | .alignment = 8, |
| 490 | .signedness = 0, |
| 491 | .reverse_byte_order = 0, |
| 492 | .base = 10, |
| 493 | .encoding = lttng_encode_none, |
| 494 | }, |
| 495 | }, |
| 496 | }, |
| 497 | [9] = { |
| 498 | .name = "transport_header", |
| 499 | .type = { |
| 500 | .atype = atype_variant, |
| 501 | .u.variant.tag_name = "transport_header_type", |
| 502 | .u.variant.choices = transport_fields, |
| 503 | .u.variant.nr_choices = ARRAY_SIZE(transport_fields), |
| 504 | }, |
| 505 | }, |
| 506 | }; |
| 507 | |
| 508 | static struct lttng_event_field network_fields[] = { |
| 509 | [0] = { |
| 510 | .name = "unknown", |
| 511 | .type = { |
| 512 | .atype = atype_struct, |
| 513 | .u._struct.nr_fields = 0, |
| 514 | .u._struct.fields = emptyfields, |
| 515 | }, |
| 516 | }, |
| 517 | [1] = { |
| 518 | .name = "ipv4", |
| 519 | .type = { |
| 520 | .atype = atype_struct, |
| 521 | .u._struct.nr_fields = ARRAY_SIZE(ipv4fields), |
| 522 | .u._struct.fields = ipv4fields, |
| 523 | }, |
| 524 | }, |
| 525 | [2] = { |
| 526 | .name = "ipv6", |
| 527 | .type = { |
| 528 | .atype = atype_struct, |
| 529 | .u._struct.nr_fields = ARRAY_SIZE(ipv6fields), |
| 530 | .u._struct.fields = ipv6fields, |
| 531 | }, |
| 532 | }, |
| 533 | }; |
| 534 | |
| 535 | enum network_header_types { |
| 536 | NH_NONE, |
| 537 | NH_IPV4, |
| 538 | NH_IPV6, |
| 539 | }; |
| 540 | |
| 541 | static inline unsigned char __get_network_header_type(struct sk_buff *skb) |
| 542 | { |
| 543 | if (__has_network_hdr(skb)) { |
| 544 | if (skb->protocol == htons(ETH_P_IPV6)) |
| 545 | return NH_IPV6; |
| 546 | else if (skb->protocol == htons(ETH_P_IP)) |
| 547 | return NH_IPV4; |
| 548 | /* Fallthrough for other header types. */ |
| 549 | } |
| 550 | return NH_NONE; |
| 551 | } |
| 552 | |
| 553 | #endif |
| 554 | |
| 555 | LTTNG_TRACEPOINT_ENUM(net_network_header, |
| 556 | TP_ENUM_VALUES( |
| 557 | ctf_enum_value("_unknown", NH_NONE) |
| 558 | ctf_enum_value("_ipv4", NH_IPV4) |
| 559 | ctf_enum_value("_ipv6", NH_IPV6) |
| 560 | ) |
| 561 | ) |
| 562 | |
| 563 | LTTNG_TRACEPOINT_EVENT(net_dev_xmit, |
| 564 | |
| 565 | TP_PROTO(struct sk_buff *skb, |
| 566 | int rc, |
| 567 | struct net_device *dev, |
| 568 | unsigned int skb_len), |
| 569 | |
| 570 | TP_ARGS(skb, rc, dev, skb_len), |
| 571 | |
| 572 | TP_FIELDS( |
| 573 | ctf_integer_hex(void *, skbaddr, skb) |
| 574 | ctf_integer(int, rc, rc) |
| 575 | ctf_integer(unsigned int, len, skb_len) |
| 576 | ctf_string(name, dev->name) |
| 577 | ) |
| 578 | ) |
| 579 | |
| 580 | LTTNG_TRACEPOINT_EVENT_CLASS(net_dev_template, |
| 581 | |
| 582 | TP_PROTO(struct sk_buff *skb), |
| 583 | |
| 584 | TP_ARGS(skb), |
| 585 | |
| 586 | TP_FIELDS( |
| 587 | ctf_integer_hex(void *, skbaddr, skb) |
| 588 | ctf_integer(unsigned int, len, skb->len) |
| 589 | ctf_string(name, skb->dev->name) |
| 590 | ctf_enum(net_network_header, unsigned char, |
| 591 | network_header_type, __get_network_header_type(skb)) |
| 592 | ctf_custom_field( |
| 593 | ctf_custom_type( |
| 594 | .atype = atype_variant, |
| 595 | .u.variant.tag_name = "network_header_type", |
| 596 | .u.variant.choices = network_fields, |
| 597 | .u.variant.nr_choices = |
| 598 | ARRAY_SIZE(network_fields), |
| 599 | ), |
| 600 | network_header, |
| 601 | ctf_custom_code( |
| 602 | bool has_network_header = false; |
| 603 | |
| 604 | /* Copy the network header. */ |
| 605 | switch (__get_network_header_type(skb)) { |
| 606 | case NH_IPV4: { |
| 607 | ctf_align(uint16_t) |
| 608 | ctf_array_type(uint8_t, ip_hdr(skb), |
| 609 | sizeof(struct iphdr)) |
| 610 | has_network_header = true; |
| 611 | break; |
| 612 | } |
| 613 | case NH_IPV6: { |
| 614 | ctf_align(uint16_t) |
| 615 | ctf_array_type(uint8_t, ipv6_hdr(skb), |
| 616 | sizeof(struct ipv6hdr)) |
| 617 | has_network_header = true; |
| 618 | break; |
| 619 | } |
| 620 | default: |
| 621 | /* |
| 622 | * For any other network header |
| 623 | * type, there is nothing to do. |
| 624 | */ |
| 625 | break; |
| 626 | } |
| 627 | |
| 628 | if (has_network_header) { |
| 629 | enum transport_header_types th_type = |
| 630 | __get_transport_header_type(skb); |
| 631 | |
| 632 | /* Transport header type field. */ |
| 633 | ctf_integer_type(unsigned char, th_type) |
| 634 | |
| 635 | /* Copy the transport header. */ |
| 636 | switch (th_type) { |
| 637 | case TH_TCP: { |
| 638 | ctf_align(uint32_t) |
| 639 | ctf_array_type(uint8_t, tcp_hdr(skb), |
| 640 | sizeof(struct tcphdr)) |
| 641 | break; |
| 642 | } |
| 643 | case TH_UDP: { |
| 644 | ctf_align(uint32_t) |
| 645 | ctf_array_type(uint8_t, udp_hdr(skb), |
| 646 | sizeof(struct udphdr)) |
| 647 | break; |
| 648 | } |
| 649 | case TH_ICMP: { |
| 650 | ctf_align(uint32_t) |
| 651 | ctf_array_type(uint8_t, icmp_hdr(skb), |
| 652 | sizeof(struct icmphdr)) |
| 653 | break; |
| 654 | } |
| 655 | default: |
| 656 | /* |
| 657 | * For any other transport header type, |
| 658 | * there is nothing to do. |
| 659 | */ |
| 660 | break; |
| 661 | } |
| 662 | } |
| 663 | ) |
| 664 | ) |
| 665 | ) |
| 666 | ) |
| 667 | |
| 668 | LTTNG_TRACEPOINT_EVENT_INSTANCE(net_dev_template, net_dev_queue, |
| 669 | |
| 670 | TP_PROTO(struct sk_buff *skb), |
| 671 | |
| 672 | TP_ARGS(skb) |
| 673 | ) |
| 674 | |
| 675 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_template, |
| 676 | |
| 677 | netif_receive_skb, |
| 678 | |
| 679 | net_if_receive_skb, |
| 680 | |
| 681 | TP_PROTO(struct sk_buff *skb), |
| 682 | |
| 683 | TP_ARGS(skb) |
| 684 | ) |
| 685 | |
| 686 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_template, |
| 687 | |
| 688 | netif_rx, |
| 689 | |
| 690 | net_if_rx, |
| 691 | |
| 692 | TP_PROTO(struct sk_buff *skb), |
| 693 | |
| 694 | TP_ARGS(skb) |
| 695 | ) |
| 696 | |
| 697 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
| 698 | |
| 699 | /* Trace events for the receive entry points */ |
| 700 | LTTNG_TRACEPOINT_EVENT_CLASS(net_dev_receive_entry_template, |
| 701 | |
| 702 | TP_PROTO(const struct sk_buff *skb), |
| 703 | |
| 704 | TP_ARGS(skb), |
| 705 | |
| 706 | TP_FIELDS( |
| 707 | ctf_integer_hex(const void *, skbaddr, skb) |
| 708 | ) |
| 709 | ) |
| 710 | |
| 711 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_entry_template, |
| 712 | |
| 713 | napi_gro_frags_entry, |
| 714 | |
| 715 | net_napi_gro_frags_entry, |
| 716 | |
| 717 | TP_PROTO(const struct sk_buff *skb), |
| 718 | |
| 719 | TP_ARGS(skb) |
| 720 | ) |
| 721 | |
| 722 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_entry_template, |
| 723 | |
| 724 | napi_gro_receive_entry, |
| 725 | |
| 726 | net_napi_gro_receive_entry, |
| 727 | |
| 728 | TP_PROTO(const struct sk_buff *skb), |
| 729 | |
| 730 | TP_ARGS(skb) |
| 731 | ) |
| 732 | |
| 733 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_entry_template, |
| 734 | |
| 735 | netif_receive_skb_entry, |
| 736 | |
| 737 | net_if_receive_skb_entry, |
| 738 | |
| 739 | TP_PROTO(const struct sk_buff *skb), |
| 740 | |
| 741 | TP_ARGS(skb) |
| 742 | ) |
| 743 | |
| 744 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_entry_template, |
| 745 | |
| 746 | netif_rx_entry, |
| 747 | |
| 748 | net_if_rx_entry, |
| 749 | |
| 750 | TP_PROTO(const struct sk_buff *skb), |
| 751 | |
| 752 | TP_ARGS(skb) |
| 753 | ) |
| 754 | |
| 755 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_entry_template, |
| 756 | |
| 757 | netif_rx_ni_entry, |
| 758 | |
| 759 | net_if_rx_ni_entry, |
| 760 | |
| 761 | TP_PROTO(const struct sk_buff *skb), |
| 762 | |
| 763 | TP_ARGS(skb) |
| 764 | ) |
| 765 | |
| 766 | #endif /* kernel > 3.14 */ |
| 767 | |
| 768 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0)) |
| 769 | |
| 770 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_entry_template, |
| 771 | |
| 772 | netif_receive_skb_list_entry, |
| 773 | |
| 774 | net_if_receive_skb_list_entry, |
| 775 | |
| 776 | TP_PROTO(const struct sk_buff *skb), |
| 777 | |
| 778 | TP_ARGS(skb) |
| 779 | ) |
| 780 | |
| 781 | #endif /* kernel > 4.19 */ |
| 782 | |
| 783 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)) |
| 784 | |
| 785 | /* Trace events for the receive exit points */ |
| 786 | LTTNG_TRACEPOINT_EVENT_CLASS(net_dev_receive_exit_template, |
| 787 | |
| 788 | TP_PROTO(int ret), |
| 789 | |
| 790 | TP_ARGS(ret), |
| 791 | |
| 792 | TP_FIELDS( |
| 793 | ctf_integer(int, ret, ret) |
| 794 | ) |
| 795 | ) |
| 796 | |
| 797 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_exit_template, |
| 798 | |
| 799 | napi_gro_frags_exit, |
| 800 | |
| 801 | net_napi_gro_frags_exit, |
| 802 | |
| 803 | TP_PROTO(int ret), |
| 804 | |
| 805 | TP_ARGS(ret) |
| 806 | ) |
| 807 | |
| 808 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_exit_template, |
| 809 | |
| 810 | napi_gro_receive_exit, |
| 811 | |
| 812 | net_napi_gro_receive_exit, |
| 813 | |
| 814 | TP_PROTO(int ret), |
| 815 | |
| 816 | TP_ARGS(ret) |
| 817 | ) |
| 818 | |
| 819 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_exit_template, |
| 820 | |
| 821 | netif_receive_skb_exit, |
| 822 | |
| 823 | net_if_receive_skb_exit, |
| 824 | |
| 825 | TP_PROTO(int ret), |
| 826 | |
| 827 | TP_ARGS(ret) |
| 828 | ) |
| 829 | |
| 830 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_exit_template, |
| 831 | |
| 832 | netif_rx_exit, |
| 833 | |
| 834 | net_if_rx_exit, |
| 835 | |
| 836 | TP_PROTO(int ret), |
| 837 | |
| 838 | TP_ARGS(ret) |
| 839 | ) |
| 840 | |
| 841 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_exit_template, |
| 842 | |
| 843 | netif_rx_ni_exit, |
| 844 | |
| 845 | net_if_rx_ni_exit, |
| 846 | |
| 847 | TP_PROTO(int ret), |
| 848 | |
| 849 | TP_ARGS(ret) |
| 850 | ) |
| 851 | |
| 852 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(net_dev_receive_exit_template, |
| 853 | |
| 854 | netif_receive_skb_list_exit, |
| 855 | |
| 856 | net_if_receive_skb_list_exit, |
| 857 | |
| 858 | TP_PROTO(int ret), |
| 859 | |
| 860 | TP_ARGS(ret) |
| 861 | ) |
| 862 | |
| 863 | #endif /* kernel > 5.0.0 */ |
| 864 | |
| 865 | #endif /* LTTNG_TRACE_NET_H */ |
| 866 | |
| 867 | /* This part must be outside protection */ |
| 868 | #include <probes/define_trace.h> |