| 1 | /* |
| 2 | * ltt/probes/net-trace.c |
| 3 | * |
| 4 | * Net tracepoint probes. |
| 5 | * |
| 6 | * (C) Copyright 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> |
| 7 | * Dual LGPL v2.1/GPL v2 license. |
| 8 | */ |
| 9 | |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/netdevice.h> |
| 12 | #include <linux/string.h> |
| 13 | #include <trace/net.h> |
| 14 | #include <trace/ipv4.h> |
| 15 | #include <trace/ipv6.h> |
| 16 | #include <trace/socket.h> |
| 17 | |
| 18 | #include "../ltt-type-serializer.h" |
| 19 | |
| 20 | void probe_net_dev_xmit(void *_data, struct sk_buff *skb); |
| 21 | |
| 22 | DEFINE_MARKER_TP(net, dev_xmit, net_dev_xmit, probe_net_dev_xmit, |
| 23 | "skb %p protocol #n2u%hu"); |
| 24 | |
| 25 | notrace void probe_net_dev_xmit(void *_data, struct sk_buff *skb) |
| 26 | { |
| 27 | struct marker *marker; |
| 28 | struct serialize_long_short data; |
| 29 | |
| 30 | data.f1 = (unsigned long)skb; |
| 31 | data.f2 = skb->protocol; |
| 32 | |
| 33 | marker = &GET_MARKER(net, dev_xmit); |
| 34 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 35 | &data, serialize_sizeof(data), sizeof(long)); |
| 36 | } |
| 37 | |
| 38 | void probe_net_dev_receive(void *_data, struct sk_buff *skb); |
| 39 | |
| 40 | DEFINE_MARKER_TP(net, dev_receive, net_dev_receive, probe_net_dev_receive, |
| 41 | "skb %p protocol #n2u%hu"); |
| 42 | |
| 43 | notrace void probe_net_dev_receive(void *_data, struct sk_buff *skb) |
| 44 | { |
| 45 | struct marker *marker; |
| 46 | struct serialize_long_short data; |
| 47 | |
| 48 | data.f1 = (unsigned long)skb; |
| 49 | data.f2 = skb->protocol; |
| 50 | |
| 51 | marker = &GET_MARKER(net, dev_receive); |
| 52 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 53 | &data, serialize_sizeof(data), sizeof(long)); |
| 54 | } |
| 55 | |
| 56 | void probe_ipv4_addr_add(void *_data, struct in_ifaddr *ifa) |
| 57 | { |
| 58 | trace_mark_tp(netif_state, insert_ifa_ipv4, ipv4_addr_add, |
| 59 | probe_ipv4_addr_add, "label %s address #4u%u", |
| 60 | ifa->ifa_label, (unsigned int)ifa->ifa_address); |
| 61 | } |
| 62 | |
| 63 | void probe_ipv4_addr_del(void *_data, struct in_ifaddr *ifa) |
| 64 | { |
| 65 | trace_mark_tp(netif_state, del_ifa_ipv4, ipv4_addr_del, |
| 66 | probe_ipv4_addr_del, "label %s address #4u%u", |
| 67 | ifa->ifa_label, (unsigned int)ifa->ifa_address); |
| 68 | } |
| 69 | |
| 70 | void probe_ipv6_addr_add(void *_data, struct inet6_ifaddr *ifa) |
| 71 | { |
| 72 | __u8 *addr = ifa->addr.s6_addr; |
| 73 | |
| 74 | trace_mark_tp(netif_state, insert_ifa_ipv6, ipv6_addr_add, |
| 75 | probe_ipv6_addr_add, |
| 76 | "label %s " |
| 77 | "a15 #1x%c a14 #1x%c a13 #1x%c a12 #1x%c " |
| 78 | "a11 #1x%c a10 #1x%c a9 #1x%c a8 #1x%c " |
| 79 | "a7 #1x%c a6 #1x%c a5 #1x%c a4 #1x%c " |
| 80 | "a3 #1x%c a2 #1x%c a1 #1x%c a0 #1x%c", |
| 81 | ifa->idev->dev->name, |
| 82 | addr[15], addr[14], addr[13], addr[12], |
| 83 | addr[11], addr[10], addr[9], addr[8], |
| 84 | addr[7], addr[6], addr[5], addr[4], |
| 85 | addr[3], addr[2], addr[1], addr[0]); |
| 86 | } |
| 87 | |
| 88 | void probe_ipv6_addr_del(void *_data, struct inet6_ifaddr *ifa) |
| 89 | { |
| 90 | __u8 *addr = ifa->addr.s6_addr; |
| 91 | |
| 92 | trace_mark_tp(netif_state, insert_ifa_ipv6, ipv6_addr_del, |
| 93 | probe_ipv6_addr_del, |
| 94 | "label %s " |
| 95 | "a15 #1x%c a14 #1x%c a13 #1x%c a12 #1x%c " |
| 96 | "a11 #1x%c a10 #1x%c a9 #1x%c a8 #1x%c " |
| 97 | "a7 #1x%c a6 #1x%c a5 #1x%c a4 #1x%c " |
| 98 | "a3 #1x%c a2 #1x%c a1 #1x%c a0 #1x%c", |
| 99 | ifa->idev->dev->name, |
| 100 | addr[15], addr[14], addr[13], addr[12], |
| 101 | addr[11], addr[10], addr[9], addr[8], |
| 102 | addr[7], addr[6], addr[5], addr[4], |
| 103 | addr[3], addr[2], addr[1], addr[0]); |
| 104 | } |
| 105 | |
| 106 | void probe_socket_create(void *_data, int family, int type, int protocol, |
| 107 | struct socket *sock, int ret) |
| 108 | { |
| 109 | trace_mark_tp(net, socket_create, socket_create, probe_socket_create, |
| 110 | "family %d type %d protocol %d sock %p ret %d", |
| 111 | family, type, protocol, sock, ret); |
| 112 | } |
| 113 | |
| 114 | void probe_socket_bind(void *_data, int fd, struct sockaddr __user *umyaddr, int addrlen, |
| 115 | int ret) |
| 116 | { |
| 117 | trace_mark_tp(net, socket_bind, socket_bind, probe_socket_bind, |
| 118 | "fd %d umyaddr %p addrlen %d ret %d", |
| 119 | fd, umyaddr, addrlen, ret); |
| 120 | } |
| 121 | |
| 122 | void probe_socket_connect(void *_data, int fd, struct sockaddr __user *uservaddr, |
| 123 | int addrlen, int ret) |
| 124 | { |
| 125 | trace_mark_tp(net, socket_connect, socket_connect, probe_socket_connect, |
| 126 | "fd %d uservaddr %p addrlen %d ret %d", |
| 127 | fd, uservaddr, addrlen, ret); |
| 128 | } |
| 129 | |
| 130 | void probe_socket_listen(void *_data, int fd, int backlog, int ret) |
| 131 | { |
| 132 | trace_mark_tp(net, socket_listen, socket_listen, probe_socket_listen, |
| 133 | "fd %d backlog %d ret %d", |
| 134 | fd, backlog, ret); |
| 135 | } |
| 136 | |
| 137 | void probe_socket_accept(void *_data, int fd, struct sockaddr __user *upeer_sockaddr, |
| 138 | int __user *upeer_addrlen, int flags, int ret) |
| 139 | { |
| 140 | trace_mark_tp(net, socket_accept, socket_accept, probe_socket_accept, |
| 141 | "fd %d upeer_sockaddr %p upeer_addrlen %p flags %d ret %d", |
| 142 | fd, upeer_sockaddr, upeer_addrlen, flags, ret); |
| 143 | } |
| 144 | |
| 145 | void probe_socket_getsockname(void *_data, int fd, struct sockaddr __user *usockaddr, |
| 146 | int __user *usockaddr_len, int ret) |
| 147 | { |
| 148 | trace_mark_tp(net, socket_getsockname, socket_getsockname, |
| 149 | probe_socket_getsockname, |
| 150 | "fd %d usockaddr %p usockaddr_len %p ret %d", |
| 151 | fd, usockaddr, usockaddr_len, ret); |
| 152 | } |
| 153 | |
| 154 | void probe_socket_getpeername(void *_data, int fd, struct sockaddr __user *usockaddr, |
| 155 | int __user *usockaddr_len, int ret) |
| 156 | { |
| 157 | trace_mark_tp(net, socket_getpeername, socket_getpeername, |
| 158 | probe_socket_getpeername, |
| 159 | "fd %d usockaddr %p usockaddr_len %p ret %d", |
| 160 | fd, usockaddr, usockaddr_len, ret); |
| 161 | } |
| 162 | |
| 163 | void probe_socket_socketpair(void *_data, int family, int type, int protocol, |
| 164 | int __user *usockvec, int ret) |
| 165 | { |
| 166 | trace_mark_tp(net, socket_socketpair, socket_socketpair, |
| 167 | probe_socket_socketpair, |
| 168 | "family %d type %d protocol %d usockvec %p ret %d", |
| 169 | family, type, protocol, usockvec, ret); |
| 170 | } |
| 171 | |
| 172 | void probe_socket_sendmsg(void *_data, struct socket *sock, struct msghdr *msg, size_t size, |
| 173 | int ret); |
| 174 | |
| 175 | DEFINE_MARKER_TP(net, socket_sendmsg, net_socket_sendmsg, |
| 176 | probe_socket_sendmsg, |
| 177 | "sock %p msg %p size %zu ret %d"); |
| 178 | |
| 179 | notrace void probe_socket_sendmsg(void *_data, struct socket *sock, struct msghdr *msg, |
| 180 | size_t size, int ret) |
| 181 | { |
| 182 | struct marker *marker; |
| 183 | struct serialize_long_long_sizet_int data; |
| 184 | |
| 185 | data.f1 = (unsigned long)sock; |
| 186 | data.f2 = (unsigned long)msg; |
| 187 | data.f3 = size; |
| 188 | data.f4 = ret; |
| 189 | |
| 190 | marker = &GET_MARKER(net, socket_sendmsg); |
| 191 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 192 | &data, serialize_sizeof(data), sizeof(size_t)); |
| 193 | } |
| 194 | |
| 195 | void probe_socket_recvmsg(void *_data, struct socket *sock, struct msghdr *msg, size_t size, |
| 196 | int flags, int ret); |
| 197 | |
| 198 | DEFINE_MARKER_TP(net, socket_recvmsg, net_socket_recvmsg, |
| 199 | probe_socket_recvmsg, |
| 200 | "sock %p msg %p size %zu flags %d ret %d"); |
| 201 | |
| 202 | notrace void probe_socket_recvmsg(void *_data, struct socket *sock, struct msghdr *msg, |
| 203 | size_t size, int flags, int ret) |
| 204 | { |
| 205 | struct marker *marker; |
| 206 | struct serialize_long_long_sizet_int_int data; |
| 207 | |
| 208 | data.f1 = (unsigned long)sock; |
| 209 | data.f2 = (unsigned long)msg; |
| 210 | data.f3 = size; |
| 211 | data.f4 = flags; |
| 212 | data.f5 = ret; |
| 213 | |
| 214 | marker = &GET_MARKER(net, socket_recvmsg); |
| 215 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 216 | &data, serialize_sizeof(data), sizeof(size_t)); |
| 217 | } |
| 218 | |
| 219 | void probe_socket_setsockopt(void *_data, int fd, int level, int optname, |
| 220 | char __user *optval, int optlen, int ret) |
| 221 | { |
| 222 | trace_mark_tp(net, socket_setsockopt, socket_setsockopt, |
| 223 | probe_socket_setsockopt, |
| 224 | "fd %d level %d optname %d optval %p optlen %d ret %d", |
| 225 | fd, level, optname, optval, optlen, ret); |
| 226 | } |
| 227 | |
| 228 | void probe_socket_getsockopt(void *_data, int fd, int level, int optname, |
| 229 | char __user *optval, int __user *optlen, int ret) |
| 230 | { |
| 231 | trace_mark_tp(net, socket_getsockopt, socket_getsockopt, |
| 232 | probe_socket_getsockopt, |
| 233 | "fd %d level %d optname %d optval %p optlen %p ret %d", |
| 234 | fd, level, optname, optval, optlen, ret); |
| 235 | } |
| 236 | |
| 237 | void probe_socket_shutdown(void *_data, int fd, int how, int ret) |
| 238 | { |
| 239 | trace_mark_tp(net, socket_shutdown, socket_shutdown, |
| 240 | probe_socket_shutdown, |
| 241 | "fd %d how %d ret %d", |
| 242 | fd, how, ret); |
| 243 | } |
| 244 | |
| 245 | void probe_socket_call(void *_data, int call, unsigned long a0) |
| 246 | { |
| 247 | trace_mark_tp(net, socket_call, socket_call, probe_socket_call, |
| 248 | "call %d a0 %lu", call, a0); |
| 249 | } |
| 250 | |
| 251 | void probe_tcpv4_rcv(void *_data, struct sk_buff *skb); |
| 252 | |
| 253 | DEFINE_MARKER_TP(net, tcpv4_rcv, net_tcpv4_rcv, probe_tcpv4_rcv, |
| 254 | "skb %p"); |
| 255 | |
| 256 | notrace void probe_tcpv4_rcv(void *_data, struct sk_buff *skb) |
| 257 | { |
| 258 | struct marker *marker; |
| 259 | |
| 260 | marker = &GET_MARKER(net, tcpv4_rcv); |
| 261 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 262 | &skb, sizeof(skb), sizeof(skb)); |
| 263 | } |
| 264 | |
| 265 | void probe_udpv4_rcv(void *_data, struct sk_buff *skb); |
| 266 | |
| 267 | DEFINE_MARKER_TP(net, udpv4_rcv, net_udpv4_rcv, probe_udpv4_rcv, |
| 268 | "skb %p"); |
| 269 | |
| 270 | notrace void probe_udpv4_rcv(void *_data, struct sk_buff *skb) |
| 271 | { |
| 272 | struct marker *marker; |
| 273 | |
| 274 | marker = &GET_MARKER(net, udpv4_rcv); |
| 275 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 276 | &skb, sizeof(skb), sizeof(skb)); |
| 277 | } |
| 278 | |
| 279 | #ifdef CONFIG_NETPOLL |
| 280 | void probe_net_napi_schedule(void *_data, struct napi_struct *n); |
| 281 | |
| 282 | DEFINE_MARKER_TP(net, napi_schedule, net_napi_schedule, |
| 283 | probe_net_napi_schedule, |
| 284 | "napi_struct %p name %s"); |
| 285 | |
| 286 | notrace void probe_net_napi_schedule(void *_data, struct napi_struct *n) |
| 287 | { |
| 288 | struct marker *marker; |
| 289 | struct serialize_long_ifname data; |
| 290 | size_t data_len = 0; |
| 291 | |
| 292 | data.f1 = (unsigned long)n; |
| 293 | data_len += sizeof(data.f1); |
| 294 | /* No need to align for strings */ |
| 295 | strcpy(data.f2, n->dev ? n->dev->name : "<unk>"); |
| 296 | data_len += strlen(data.f2) + 1; |
| 297 | |
| 298 | marker = &GET_MARKER(net, napi_schedule); |
| 299 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 300 | &data, data_len, sizeof(long)); |
| 301 | } |
| 302 | |
| 303 | void probe_net_napi_poll(void *_data, struct napi_struct *n); |
| 304 | |
| 305 | DEFINE_MARKER_TP(net, napi_poll, net_napi_poll, |
| 306 | probe_net_napi_poll, |
| 307 | "napi_struct %p name %s"); |
| 308 | |
| 309 | notrace void probe_net_napi_poll(void *_data, struct napi_struct *n) |
| 310 | { |
| 311 | struct marker *marker; |
| 312 | struct serialize_long_ifname data; |
| 313 | size_t data_len = 0; |
| 314 | |
| 315 | data.f1 = (unsigned long)n; |
| 316 | data_len += sizeof(data.f1); |
| 317 | /* No need to align for strings */ |
| 318 | strcpy(data.f2, n->dev ? n->dev->name : "<unk>"); |
| 319 | data_len += strlen(data.f2) + 1; |
| 320 | |
| 321 | marker = &GET_MARKER(net, napi_poll); |
| 322 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 323 | &data, data_len, sizeof(long)); |
| 324 | } |
| 325 | |
| 326 | void probe_net_napi_complete(void *_data, struct napi_struct *n); |
| 327 | |
| 328 | DEFINE_MARKER_TP(net, napi_complete, net_napi_complete, |
| 329 | probe_net_napi_complete, |
| 330 | "napi_struct %p name %s"); |
| 331 | |
| 332 | notrace void probe_net_napi_complete(void *_data, struct napi_struct *n) |
| 333 | { |
| 334 | struct marker *marker; |
| 335 | struct serialize_long_ifname data; |
| 336 | size_t data_len = 0; |
| 337 | |
| 338 | data.f1 = (unsigned long)n; |
| 339 | data_len += sizeof(data.f1); |
| 340 | /* No need to align for strings */ |
| 341 | strcpy(data.f2, n->dev ? n->dev->name : "<unk>"); |
| 342 | data_len += strlen(data.f2) + 1; |
| 343 | |
| 344 | marker = &GET_MARKER(net, napi_complete); |
| 345 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 346 | &data, data_len, sizeof(long)); |
| 347 | } |
| 348 | #else /* !CONFIG_NETPOLL */ |
| 349 | void probe_net_napi_schedule(void *_data, struct napi_struct *n); |
| 350 | |
| 351 | DEFINE_MARKER_TP(net, napi_schedule, net_napi_schedule, |
| 352 | probe_net_napi_schedule, |
| 353 | "napi_struct %p"); |
| 354 | |
| 355 | notrace void probe_net_napi_schedule(void *_data, struct napi_struct *n) |
| 356 | { |
| 357 | struct marker *marker; |
| 358 | unsigned long data; |
| 359 | |
| 360 | data = (unsigned long)n; |
| 361 | |
| 362 | marker = &GET_MARKER(net, napi_schedule); |
| 363 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 364 | &data, sizeof(data), sizeof(data)); |
| 365 | } |
| 366 | |
| 367 | void probe_net_napi_poll(void *_data, struct napi_struct *n); |
| 368 | |
| 369 | DEFINE_MARKER_TP(net, napi_poll, net_napi_poll, |
| 370 | probe_net_napi_poll, |
| 371 | "napi_struct %p"); |
| 372 | |
| 373 | notrace void probe_net_napi_poll(void *_data, struct napi_struct *n) |
| 374 | { |
| 375 | struct marker *marker; |
| 376 | unsigned long data; |
| 377 | |
| 378 | data = (unsigned long)n; |
| 379 | |
| 380 | marker = &GET_MARKER(net, napi_poll); |
| 381 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 382 | &data, sizeof(data), sizeof(data)); |
| 383 | } |
| 384 | |
| 385 | void probe_net_napi_complete(void *_data, struct napi_struct *n); |
| 386 | |
| 387 | DEFINE_MARKER_TP(net, napi_complete, net_napi_complete, |
| 388 | probe_net_napi_complete, |
| 389 | "napi_struct %p"); |
| 390 | |
| 391 | notrace void probe_net_napi_complete(void *_data, struct napi_struct *n) |
| 392 | { |
| 393 | struct marker *marker; |
| 394 | unsigned long data; |
| 395 | |
| 396 | data = (unsigned long)n; |
| 397 | |
| 398 | marker = &GET_MARKER(net, napi_complete); |
| 399 | ltt_specialized_trace(marker, marker->single.probe_private, |
| 400 | &data, sizeof(data), sizeof(data)); |
| 401 | } |
| 402 | #endif |
| 403 | |
| 404 | MODULE_LICENSE("GPL and additional rights"); |
| 405 | MODULE_AUTHOR("Mathieu Desnoyers"); |
| 406 | MODULE_DESCRIPTION("Net Tracepoint Probes"); |