| 1 | /*
|
|---|
| 2 | * Copyright (c) 1995 Danny Gasparovski.
|
|---|
| 3 | * Portions copyright (c) 2000 Kelly Price.
|
|---|
| 4 | *
|
|---|
| 5 | * Please read the file COPYRIGHT for the
|
|---|
| 6 | * terms and conditions of the copyright.
|
|---|
| 7 | */
|
|---|
| 8 |
|
|---|
| 9 | #include <slirp.h>
|
|---|
| 10 | #include <iprt/string.h>
|
|---|
| 11 | #include <iprt/stream.h>
|
|---|
| 12 |
|
|---|
| 13 | #ifdef DEBUG
|
|---|
| 14 | void dump_packet(void *, int);
|
|---|
| 15 | #endif
|
|---|
| 16 |
|
|---|
| 17 | #define IP4_ADDR_PRINTF_DECOMP(ip) ((ip) >> 24), ((ip) >> 16) & 0xff, ((ip) >> 8) & 0xff, (ip) & 0xff
|
|---|
| 18 | #define IP4_ADDR_PRINTF_FORMAT "%u.%u.%u.%u"
|
|---|
| 19 | /*
|
|---|
| 20 | * Dump a packet in the same format as tcpdump -x
|
|---|
| 21 | */
|
|---|
| 22 | #ifdef DEBUG
|
|---|
| 23 | void
|
|---|
| 24 | dump_packet(void *dat, int n)
|
|---|
| 25 | {
|
|---|
| 26 | Log(("nat: PACKET DUMPED:\n%.*Vhxd\n", n, dat));
|
|---|
| 27 | }
|
|---|
| 28 | #endif
|
|---|
| 29 |
|
|---|
| 30 | #ifdef LOG_ENABLED
|
|---|
| 31 | static void
|
|---|
| 32 | lprint(const char *pszFormat, ...)
|
|---|
| 33 | {
|
|---|
| 34 | va_list args;
|
|---|
| 35 | va_start(args, pszFormat);
|
|---|
| 36 | RTLogPrintfV(pszFormat, args);
|
|---|
| 37 | va_end(args);
|
|---|
| 38 | }
|
|---|
| 39 |
|
|---|
| 40 | void
|
|---|
| 41 | ipstats(PNATState pData)
|
|---|
| 42 | {
|
|---|
| 43 | lprint(" \n");
|
|---|
| 44 |
|
|---|
| 45 | lprint("IP stats:\n");
|
|---|
| 46 | lprint(" %6d total packets received (%d were unaligned)\n",
|
|---|
| 47 | ipstat.ips_total, ipstat.ips_unaligned);
|
|---|
| 48 | lprint(" %6d with incorrect version\n", ipstat.ips_badvers);
|
|---|
| 49 | lprint(" %6d with bad header checksum\n", ipstat.ips_badsum);
|
|---|
| 50 | lprint(" %6d with length too short (len < sizeof(iphdr))\n", ipstat.ips_tooshort);
|
|---|
| 51 | lprint(" %6d with length too small (len < ip->len)\n", ipstat.ips_toosmall);
|
|---|
| 52 | lprint(" %6d with bad header length\n", ipstat.ips_badhlen);
|
|---|
| 53 | lprint(" %6d with bad packet length\n", ipstat.ips_badlen);
|
|---|
| 54 | lprint(" %6d fragments received\n", ipstat.ips_fragments);
|
|---|
| 55 | lprint(" %6d fragments dropped\n", ipstat.ips_fragdropped);
|
|---|
| 56 | lprint(" %6d fragments timed out\n", ipstat.ips_fragtimeout);
|
|---|
| 57 | lprint(" %6d packets reassembled ok\n", ipstat.ips_reassembled);
|
|---|
| 58 | lprint(" %6d outgoing packets fragmented\n", ipstat.ips_fragmented);
|
|---|
| 59 | lprint(" %6d total outgoing fragments\n", ipstat.ips_ofragments);
|
|---|
| 60 | lprint(" %6d with bad protocol field\n", ipstat.ips_noproto);
|
|---|
| 61 | lprint(" %6d total packets delivered\n", ipstat.ips_delivered);
|
|---|
| 62 | }
|
|---|
| 63 |
|
|---|
| 64 | void
|
|---|
| 65 | tcpstats(PNATState pData)
|
|---|
| 66 | {
|
|---|
| 67 | lprint(" \n");
|
|---|
| 68 |
|
|---|
| 69 | lprint("TCP stats:\n");
|
|---|
| 70 |
|
|---|
| 71 | lprint(" %6d packets sent\n", tcpstat.tcps_sndtotal);
|
|---|
| 72 | lprint(" %6d data packets (%d bytes)\n",
|
|---|
| 73 | tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte);
|
|---|
| 74 | lprint(" %6d data packets retransmitted (%d bytes)\n",
|
|---|
| 75 | tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte);
|
|---|
| 76 | lprint(" %6d ack-only packets (%d delayed)\n",
|
|---|
| 77 | tcpstat.tcps_sndacks, tcpstat.tcps_delack);
|
|---|
| 78 | lprint(" %6d URG only packets\n", tcpstat.tcps_sndurg);
|
|---|
| 79 | lprint(" %6d window probe packets\n", tcpstat.tcps_sndprobe);
|
|---|
| 80 | lprint(" %6d window update packets\n", tcpstat.tcps_sndwinup);
|
|---|
| 81 | lprint(" %6d control (SYN/FIN/RST) packets\n", tcpstat.tcps_sndctrl);
|
|---|
| 82 | lprint(" %6d times tcp_output did nothing\n", tcpstat.tcps_didnuttin);
|
|---|
| 83 |
|
|---|
| 84 | lprint(" %6d packets received\n", tcpstat.tcps_rcvtotal);
|
|---|
| 85 | lprint(" %6d acks (for %d bytes)\n",
|
|---|
| 86 | tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte);
|
|---|
| 87 | lprint(" %6d duplicate acks\n", tcpstat.tcps_rcvdupack);
|
|---|
| 88 | lprint(" %6d acks for unsent data\n", tcpstat.tcps_rcvacktoomuch);
|
|---|
| 89 | lprint(" %6d packets received in sequence (%d bytes)\n",
|
|---|
| 90 | tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte);
|
|---|
| 91 | lprint(" %6d completely duplicate packets (%d bytes)\n",
|
|---|
| 92 | tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte);
|
|---|
| 93 |
|
|---|
| 94 | lprint(" %6d packets with some duplicate data (%d bytes duped)\n",
|
|---|
| 95 | tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte);
|
|---|
| 96 | lprint(" %6d out-of-order packets (%d bytes)\n",
|
|---|
| 97 | tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte);
|
|---|
| 98 | lprint(" %6d packets of data after window (%d bytes)\n",
|
|---|
| 99 | tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin);
|
|---|
| 100 | lprint(" %6d window probes\n", tcpstat.tcps_rcvwinprobe);
|
|---|
| 101 | lprint(" %6d window update packets\n", tcpstat.tcps_rcvwinupd);
|
|---|
| 102 | lprint(" %6d packets received after close\n", tcpstat.tcps_rcvafterclose);
|
|---|
| 103 | lprint(" %6d discarded for bad checksums\n", tcpstat.tcps_rcvbadsum);
|
|---|
| 104 | lprint(" %6d discarded for bad header offset fields\n",
|
|---|
| 105 | tcpstat.tcps_rcvbadoff);
|
|---|
| 106 |
|
|---|
| 107 | lprint(" %6d connection requests\n", tcpstat.tcps_connattempt);
|
|---|
| 108 | lprint(" %6d connection accepts\n", tcpstat.tcps_accepts);
|
|---|
| 109 | lprint(" %6d connections established (including accepts)\n", tcpstat.tcps_connects);
|
|---|
| 110 | lprint(" %6d connections closed (including %d drop)\n",
|
|---|
| 111 | tcpstat.tcps_closed, tcpstat.tcps_drops);
|
|---|
| 112 | lprint(" %6d embryonic connections dropped\n", tcpstat.tcps_conndrops);
|
|---|
| 113 | lprint(" %6d segments we tried to get rtt (%d succeeded)\n",
|
|---|
| 114 | tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated);
|
|---|
| 115 | lprint(" %6d retransmit timeouts\n", tcpstat.tcps_rexmttimeo);
|
|---|
| 116 | lprint(" %6d connections dropped by rxmt timeout\n",
|
|---|
| 117 | tcpstat.tcps_timeoutdrop);
|
|---|
| 118 | lprint(" %6d persist timeouts\n", tcpstat.tcps_persisttimeo);
|
|---|
| 119 | lprint(" %6d keepalive timeouts\n", tcpstat.tcps_keeptimeo);
|
|---|
| 120 | lprint(" %6d keepalive probes sent\n", tcpstat.tcps_keepprobe);
|
|---|
| 121 | lprint(" %6d connections dropped by keepalive\n", tcpstat.tcps_keepdrops);
|
|---|
| 122 | lprint(" %6d correct ACK header predictions\n", tcpstat.tcps_predack);
|
|---|
| 123 | lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat);
|
|---|
| 124 | lprint(" %6d TCP cache misses\n", tcpstat.tcps_socachemiss);
|
|---|
| 125 |
|
|---|
| 126 | /* lprint(" Packets received too short: %d\n", tcpstat.tcps_rcvshort); */
|
|---|
| 127 | /* lprint(" Segments dropped due to PAWS: %d\n", tcpstat.tcps_pawsdrop); */
|
|---|
| 128 |
|
|---|
| 129 | }
|
|---|
| 130 |
|
|---|
| 131 | void
|
|---|
| 132 | udpstats(PNATState pData)
|
|---|
| 133 | {
|
|---|
| 134 | lprint(" \n");
|
|---|
| 135 |
|
|---|
| 136 | lprint("UDP stats:\n");
|
|---|
| 137 | lprint(" %6d datagrams received\n", udpstat.udps_ipackets);
|
|---|
| 138 | lprint(" %6d with packets shorter than header\n", udpstat.udps_hdrops);
|
|---|
| 139 | lprint(" %6d with bad checksums\n", udpstat.udps_badsum);
|
|---|
| 140 | lprint(" %6d with data length larger than packet\n", udpstat.udps_badlen);
|
|---|
| 141 | lprint(" %6d UDP socket cache misses\n", udpstat.udpps_pcbcachemiss);
|
|---|
| 142 | lprint(" %6d datagrams sent\n", udpstat.udps_opackets);
|
|---|
| 143 | }
|
|---|
| 144 |
|
|---|
| 145 | void
|
|---|
| 146 | icmpstats(PNATState pData)
|
|---|
| 147 | {
|
|---|
| 148 | lprint(" \n");
|
|---|
| 149 | lprint("ICMP stats:\n");
|
|---|
| 150 | lprint(" %6d ICMP packets received\n", icmpstat.icps_received);
|
|---|
| 151 | lprint(" %6d were too short\n", icmpstat.icps_tooshort);
|
|---|
| 152 | lprint(" %6d with bad checksums\n", icmpstat.icps_checksum);
|
|---|
| 153 | lprint(" %6d with type not supported\n", icmpstat.icps_notsupp);
|
|---|
| 154 | lprint(" %6d with bad type feilds\n", icmpstat.icps_badtype);
|
|---|
| 155 | lprint(" %6d ICMP packets sent in reply\n", icmpstat.icps_reflect);
|
|---|
| 156 | }
|
|---|
| 157 |
|
|---|
| 158 | void
|
|---|
| 159 | mbufstats(PNATState pData)
|
|---|
| 160 | {
|
|---|
| 161 | struct mbuf *m;
|
|---|
| 162 | int i;
|
|---|
| 163 |
|
|---|
| 164 | lprint(" \n");
|
|---|
| 165 |
|
|---|
| 166 | lprint("Mbuf stats:\n");
|
|---|
| 167 |
|
|---|
| 168 | lprint(" %6d mbufs allocated (%d max)\n", mbuf_alloced, mbuf_max);
|
|---|
| 169 |
|
|---|
| 170 | i = 0;
|
|---|
| 171 | for (m = m_freelist.m_next; m != &m_freelist; m = m->m_next)
|
|---|
| 172 | i++;
|
|---|
| 173 | lprint(" %6d mbufs on free list\n", i);
|
|---|
| 174 |
|
|---|
| 175 | i = 0;
|
|---|
| 176 | for (m = m_usedlist.m_next; m != &m_usedlist; m = m->m_next)
|
|---|
| 177 | i++;
|
|---|
| 178 | lprint(" %6d mbufs on used list\n", i);
|
|---|
| 179 | lprint(" %6d mbufs queued as packets\n\n", if_queued);
|
|---|
| 180 | }
|
|---|
| 181 |
|
|---|
| 182 | void
|
|---|
| 183 | sockstats(PNATState pData)
|
|---|
| 184 | {
|
|---|
| 185 | char buff[256];
|
|---|
| 186 | int n;
|
|---|
| 187 | struct socket *so;
|
|---|
| 188 |
|
|---|
| 189 | lprint(" \n");
|
|---|
| 190 |
|
|---|
| 191 | lprint(
|
|---|
| 192 | "Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\n");
|
|---|
| 193 |
|
|---|
| 194 | for (so = tcb.so_next; so != &tcb; so = so->so_next)
|
|---|
| 195 | {
|
|---|
| 196 | n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE");
|
|---|
| 197 | while (n < 17)
|
|---|
| 198 | buff[n++] = ' ';
|
|---|
| 199 | buff[17] = 0;
|
|---|
| 200 | lprint("%s %3d %15s %5d ",
|
|---|
| 201 | buff, so->s, inet_ntoa(so->so_laddr), ntohs(so->so_lport));
|
|---|
| 202 | lprint("%15s %5d %5d %5d\n",
|
|---|
| 203 | inet_ntoa(so->so_faddr), ntohs(so->so_fport),
|
|---|
| 204 | so->so_rcv.sb_cc, so->so_snd.sb_cc);
|
|---|
| 205 | }
|
|---|
| 206 |
|
|---|
| 207 | for (so = udb.so_next; so != &udb; so = so->so_next)
|
|---|
| 208 | {
|
|---|
| 209 | n = sprintf(buff, "udp[%d sec]", (so->so_expire - curtime) / 1000);
|
|---|
| 210 | while (n < 17)
|
|---|
| 211 | buff[n++] = ' ';
|
|---|
| 212 | buff[17] = 0;
|
|---|
| 213 | lprint("%s %3d %15s %5d ",
|
|---|
| 214 | buff, so->s, inet_ntoa(so->so_laddr), ntohs(so->so_lport));
|
|---|
| 215 | lprint("%15s %5d %5d %5d\n",
|
|---|
| 216 | inet_ntoa(so->so_faddr), ntohs(so->so_fport),
|
|---|
| 217 | so->so_rcv.sb_cc, so->so_snd.sb_cc);
|
|---|
| 218 | }
|
|---|
| 219 | }
|
|---|
| 220 | #endif
|
|---|
| 221 |
|
|---|
| 222 | static DECLCALLBACK(size_t)
|
|---|
| 223 | print_ipv4_address(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
|
|---|
| 224 | const char *pszType, void const *pvValue,
|
|---|
| 225 | int cchWidth, int cchPrecision, unsigned fFlags,
|
|---|
| 226 | void *pvUser)
|
|---|
| 227 | {
|
|---|
| 228 | uint32_t ip;
|
|---|
| 229 |
|
|---|
| 230 | AssertReturn(strcmp(pszType, "IP4") == 0, 0);
|
|---|
| 231 |
|
|---|
| 232 | ip = ntohl(*(uint32_t*)pvValue);
|
|---|
| 233 | return RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, IP4_ADDR_PRINTF_FORMAT,
|
|---|
| 234 | IP4_ADDR_PRINTF_DECOMP(ip));
|
|---|
| 235 | }
|
|---|
| 236 |
|
|---|
| 237 | static DECLCALLBACK(size_t)
|
|---|
| 238 | print_socket(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
|
|---|
| 239 | const char *pszType, void const *pvValue,
|
|---|
| 240 | int cchWidth, int cchPrecision, unsigned fFlags,
|
|---|
| 241 | void *pvUser)
|
|---|
| 242 | {
|
|---|
| 243 | struct socket *so = (struct socket*)pvValue;
|
|---|
| 244 | uint32_t ip;
|
|---|
| 245 | struct sockaddr addr;
|
|---|
| 246 | socklen_t socklen = sizeof(struct sockaddr);
|
|---|
| 247 | int status = 0;
|
|---|
| 248 |
|
|---|
| 249 | AssertReturn(strcmp(pszType, "natsock") == 0, 0);
|
|---|
| 250 |
|
|---|
| 251 | status = getsockname(so->s, &addr, &socklen);
|
|---|
| 252 |
|
|---|
| 253 | Assert(status == 0 && addr.sa_family == AF_INET);
|
|---|
| 254 |
|
|---|
| 255 | ip = ntohl(so->so_faddr.s_addr);
|
|---|
| 256 | return RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "socket %4d:(proto:%u) "
|
|---|
| 257 | "state=%04x ip=" IP4_ADDR_PRINTF_FORMAT ":%d name=" IP4_ADDR_PRINTF_FORMAT ":%d",
|
|---|
| 258 | so->s, so->so_type, so->so_state, IP4_ADDR_PRINTF_DECOMP(ip), ntohs(so->so_fport),
|
|---|
| 259 | IP4_ADDR_PRINTF_DECOMP(((struct sockaddr_in *)&addr)->sin_addr.s_addr),
|
|---|
| 260 | ntohs(((struct sockaddr_in *)&addr)->sin_port));
|
|---|
| 261 | }
|
|---|
| 262 |
|
|---|
| 263 | static DECLCALLBACK(size_t)
|
|---|
| 264 | print_networkevents(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
|
|---|
| 265 | const char *pszType, void const *pvValue,
|
|---|
| 266 | int cchWidth, int cchPrecision, unsigned fFlags,
|
|---|
| 267 | void *pvUser)
|
|---|
| 268 | {
|
|---|
| 269 | size_t cb = 0;
|
|---|
| 270 | #ifdef RT_OS_WINDOWS
|
|---|
| 271 | WSANETWORKEVENTS *pNetworkEvents = (WSANETWORKEVENTS*)pvValue;
|
|---|
| 272 | bool fDelim = false;
|
|---|
| 273 |
|
|---|
| 274 | AssertReturn(strcmp(pszType, "natwinnetevents") == 0, 0);
|
|---|
| 275 |
|
|---|
| 276 | cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "events=%02x (", pNetworkEvents->lNetworkEvents);
|
|---|
| 277 | # define DO_BIT(bit) \
|
|---|
| 278 | if (pNetworkEvents->lNetworkEvents & FD_ ## bit) \
|
|---|
| 279 | { \
|
|---|
| 280 | cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "%s" #bit "(%d)", \
|
|---|
| 281 | fDelim ? "," : "", pNetworkEvents->iErrorCode[FD_ ## bit ## _BIT]); \
|
|---|
| 282 | fDelim = true; \
|
|---|
| 283 | }
|
|---|
| 284 | DO_BIT(READ);
|
|---|
| 285 | DO_BIT(WRITE);
|
|---|
| 286 | DO_BIT(OOB);
|
|---|
| 287 | DO_BIT(ACCEPT);
|
|---|
| 288 | DO_BIT(CONNECT);
|
|---|
| 289 | DO_BIT(CLOSE);
|
|---|
| 290 | DO_BIT(QOS);
|
|---|
| 291 | # undef DO_BIT
|
|---|
| 292 | cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, ")");
|
|---|
| 293 | #endif
|
|---|
| 294 | return cb;
|
|---|
| 295 | }
|
|---|
| 296 |
|
|---|
| 297 | #if 0
|
|---|
| 298 | /*
|
|---|
| 299 | * Debugging
|
|---|
| 300 | */
|
|---|
| 301 | int errno_func(const char *file, int line)
|
|---|
| 302 | {
|
|---|
| 303 | int err = WSAGetLastError();
|
|---|
| 304 | LogRel(("errno=%d (%s:%d)\n", err, file, line));
|
|---|
| 305 | return err;
|
|---|
| 306 | }
|
|---|
| 307 | #endif
|
|---|
| 308 |
|
|---|
| 309 | int
|
|---|
| 310 | debug_init()
|
|---|
| 311 | {
|
|---|
| 312 | int rc = VINF_SUCCESS;
|
|---|
| 313 |
|
|---|
| 314 | static int g_fFormatRegistered;
|
|---|
| 315 |
|
|---|
| 316 | if (!g_fFormatRegistered)
|
|---|
| 317 | {
|
|---|
| 318 | /*
|
|---|
| 319 | * XXX Move this to IPRT using RTNETADDRIPV4. Use the specifier %RNAipv4.
|
|---|
| 320 | */
|
|---|
| 321 | rc = RTStrFormatTypeRegister("IP4", print_ipv4_address, NULL);
|
|---|
| 322 | AssertRC(rc);
|
|---|
| 323 | rc = RTStrFormatTypeRegister("natsock", print_socket, NULL);
|
|---|
| 324 | AssertRC(rc);
|
|---|
| 325 | rc = RTStrFormatTypeRegister("natwinnetevents", print_networkevents, NULL);
|
|---|
| 326 | AssertRC(rc);
|
|---|
| 327 | g_fFormatRegistered = 1;
|
|---|
| 328 | }
|
|---|
| 329 |
|
|---|
| 330 | return rc;
|
|---|
| 331 | }
|
|---|
