The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of DOS-libpcap |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 3 | * Ported to DOS/DOSX by G. Vanem <gvanem@yahoo.no> |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 4 | * |
| 5 | * pcap-dos.c: Interface to PKTDRVR, NDIS2 and 32-bit pmode |
| 6 | * network drivers. |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #include <stdio.h> |
| 10 | #include <stdlib.h> |
| 11 | #include <string.h> |
| 12 | #include <signal.h> |
| 13 | #include <float.h> |
| 14 | #include <fcntl.h> |
| 15 | #include <io.h> |
| 16 | |
| 17 | #if defined(USE_32BIT_DRIVERS) |
| 18 | #include "msdos/pm_drvr/pmdrvr.h" |
| 19 | #include "msdos/pm_drvr/pci.h" |
| 20 | #include "msdos/pm_drvr/bios32.h" |
| 21 | #include "msdos/pm_drvr/module.h" |
| 22 | #include "msdos/pm_drvr/3c501.h" |
| 23 | #include "msdos/pm_drvr/3c503.h" |
| 24 | #include "msdos/pm_drvr/3c509.h" |
| 25 | #include "msdos/pm_drvr/3c59x.h" |
| 26 | #include "msdos/pm_drvr/3c515.h" |
| 27 | #include "msdos/pm_drvr/3c90x.h" |
| 28 | #include "msdos/pm_drvr/3c575_cb.h" |
| 29 | #include "msdos/pm_drvr/ne.h" |
| 30 | #include "msdos/pm_drvr/wd.h" |
| 31 | #include "msdos/pm_drvr/accton.h" |
| 32 | #include "msdos/pm_drvr/cs89x0.h" |
| 33 | #include "msdos/pm_drvr/rtl8139.h" |
| 34 | #include "msdos/pm_drvr/ne2k-pci.h" |
| 35 | #endif |
| 36 | |
| 37 | #include "pcap.h" |
| 38 | #include "pcap-dos.h" |
| 39 | #include "pcap-int.h" |
| 40 | #include "msdos/pktdrvr.h" |
| 41 | |
| 42 | #ifdef USE_NDIS2 |
| 43 | #include "msdos/ndis2.h" |
| 44 | #endif |
| 45 | |
| 46 | #include <arpa/inet.h> |
| 47 | #include <net/if.h> |
| 48 | #include <net/if_arp.h> |
| 49 | #include <net/if_ether.h> |
| 50 | #include <net/if_packe.h> |
| 51 | #include <tcp.h> |
| 52 | |
| 53 | #if defined(USE_32BIT_DRIVERS) |
| 54 | #define FLUSHK() do { _printk_safe = 1; _printk_flush(); } while (0) |
| 55 | #define NDIS_NEXT_DEV &rtl8139_dev |
| 56 | |
| 57 | static char *rx_pool = NULL; |
| 58 | static void init_32bit (void); |
| 59 | |
| 60 | static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool); |
| 61 | static int pktq_check (struct rx_ringbuf *q); |
| 62 | static int pktq_inc_out (struct rx_ringbuf *q); |
| 63 | static int pktq_in_index (struct rx_ringbuf *q) LOCKED_FUNC; |
| 64 | static void pktq_clear (struct rx_ringbuf *q) LOCKED_FUNC; |
| 65 | |
| 66 | static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q) LOCKED_FUNC; |
| 67 | static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q); |
| 68 | |
| 69 | #else |
| 70 | #define FLUSHK() ((void)0) |
| 71 | #define NDIS_NEXT_DEV NULL |
| 72 | #endif |
| 73 | |
| 74 | /* |
| 75 | * Internal variables/functions in Watt-32 |
| 76 | */ |
| 77 | extern WORD _pktdevclass; |
| 78 | extern BOOL _eth_is_init; |
| 79 | extern int _w32_dynamic_host; |
| 80 | extern int _watt_do_exit; |
| 81 | extern int _watt_is_init; |
| 82 | extern int _w32__bootp_on, _w32__dhcp_on, _w32__rarp_on, _w32__do_mask_req; |
| 83 | extern void (*_w32_usr_post_init) (void); |
| 84 | extern void (*_w32_print_hook)(); |
| 85 | |
| 86 | extern void dbug_write (const char *); /* Watt-32 lib, pcdbug.c */ |
| 87 | extern int pkt_get_mtu (void); |
| 88 | |
| 89 | static int ref_count = 0; |
| 90 | |
| 91 | static u_long mac_count = 0; |
| 92 | static u_long filter_count = 0; |
| 93 | |
| 94 | static volatile BOOL exc_occured = 0; |
| 95 | |
| 96 | static struct device *handle_to_device [20]; |
| 97 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 98 | static int pcap_activate_dos (pcap_t *p); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 99 | static int pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback, |
| 100 | u_char *data); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 101 | static void pcap_cleanup_dos (pcap_t *p); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 102 | static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps); |
| 103 | static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len); |
| 104 | static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp); |
| 105 | |
| 106 | static int ndis_probe (struct device *dev); |
| 107 | static int pkt_probe (struct device *dev); |
| 108 | |
| 109 | static void close_driver (void); |
| 110 | static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf); |
| 111 | static int first_init (const char *name, char *ebuf, int promisc); |
| 112 | |
| 113 | static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap, |
| 114 | const u_char *buf); |
| 115 | |
| 116 | /* |
| 117 | * These are the device we always support |
| 118 | */ |
| 119 | static struct device ndis_dev = { |
| 120 | "ndis", |
| 121 | "NDIS2 LanManager", |
| 122 | 0, |
| 123 | 0,0,0,0,0,0, |
| 124 | NDIS_NEXT_DEV, /* NULL or a 32-bit device */ |
| 125 | ndis_probe |
| 126 | }; |
| 127 | |
| 128 | static struct device pkt_dev = { |
| 129 | "pkt", |
| 130 | "Packet-Driver", |
| 131 | 0, |
| 132 | 0,0,0,0,0,0, |
| 133 | &ndis_dev, |
| 134 | pkt_probe |
| 135 | }; |
| 136 | |
| 137 | static struct device *get_device (int fd) |
| 138 | { |
| 139 | if (fd <= 0 || fd >= sizeof(handle_to_device)/sizeof(handle_to_device[0])) |
| 140 | return (NULL); |
| 141 | return handle_to_device [fd-1]; |
| 142 | } |
| 143 | |
| 144 | /* |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 145 | * Private data for capturing on MS-DOS. |
| 146 | */ |
| 147 | struct pcap_dos { |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 148 | void (*wait_proc)(void); /* call proc while waiting */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 149 | struct pcap_stat stat; |
| 150 | }; |
| 151 | |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 152 | pcap_t *pcap_create_interface (const char *device _U_, char *ebuf) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 153 | { |
| 154 | pcap_t *p; |
| 155 | |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 156 | p = PCAP_CREATE_COMMON(ebuf, struct pcap_dos); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 157 | if (p == NULL) |
| 158 | return (NULL); |
| 159 | |
| 160 | p->activate_op = pcap_activate_dos; |
| 161 | return (p); |
| 162 | } |
| 163 | |
| 164 | /* |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 165 | * Open MAC-driver with name 'device_name' for live capture of |
| 166 | * network packets. |
| 167 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 168 | static int pcap_activate_dos (pcap_t *pcap) |
Elliott Hughes | d8845d7 | 2015-10-19 18:07:04 -0700 | [diff] [blame] | 169 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 170 | if (pcap->opt.rfmon) { |
| 171 | /* |
| 172 | * No monitor mode on DOS. |
| 173 | */ |
| 174 | return (PCAP_ERROR_RFMON_NOTSUP); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 175 | } |
| 176 | |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 177 | /* |
| 178 | * Turn a negative snapshot value (invalid), a snapshot value of |
| 179 | * 0 (unspecified), or a value bigger than the normal maximum |
| 180 | * value, into the maximum allowed value. |
| 181 | * |
| 182 | * If some application really *needs* a bigger snapshot |
| 183 | * length, we should just increase MAXIMUM_SNAPLEN. |
| 184 | */ |
| 185 | if (pcap->snapshot <= 0 || pcap->snapshot > MAXIMUM_SNAPLEN) |
| 186 | pcap->snapshot = MAXIMUM_SNAPLEN; |
| 187 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 188 | if (pcap->snapshot < ETH_MIN+8) |
| 189 | pcap->snapshot = ETH_MIN+8; |
| 190 | |
| 191 | if (pcap->snapshot > ETH_MAX) /* silently accept and truncate large MTUs */ |
| 192 | pcap->snapshot = ETH_MAX; |
| 193 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 194 | pcap->linktype = DLT_EN10MB; /* !! */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 195 | pcap->cleanup_op = pcap_cleanup_dos; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 196 | pcap->read_op = pcap_read_dos; |
| 197 | pcap->stats_op = pcap_stats_dos; |
| 198 | pcap->inject_op = pcap_sendpacket_dos; |
| 199 | pcap->setfilter_op = pcap_setfilter_dos; |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 200 | pcap->setdirection_op = NULL; /* Not implemented.*/ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 201 | pcap->fd = ++ref_count; |
| 202 | |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 203 | pcap->bufsize = ETH_MAX+100; /* add some margin */ |
| 204 | pcap->buffer = calloc (pcap->bufsize, 1); |
| 205 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 206 | if (pcap->fd == 1) /* first time we're called */ |
| 207 | { |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 208 | if (!init_watt32(pcap, pcap->opt.device, pcap->errbuf) || |
| 209 | !first_init(pcap->opt.device, pcap->errbuf, pcap->opt.promisc)) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 210 | { |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 211 | /* XXX - free pcap->buffer? */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 212 | return (PCAP_ERROR); |
Elliott Hughes | d8845d7 | 2015-10-19 18:07:04 -0700 | [diff] [blame] | 213 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 214 | atexit (close_driver); |
| 215 | } |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 216 | else if (stricmp(active_dev->name,pcap->opt.device)) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 217 | { |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 218 | snprintf (pcap->errbuf, PCAP_ERRBUF_SIZE, |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 219 | "Cannot use different devices simultaneously " |
| 220 | "(`%s' vs. `%s')", active_dev->name, pcap->opt.device); |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 221 | /* XXX - free pcap->buffer? */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 222 | return (PCAP_ERROR); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 223 | } |
| 224 | handle_to_device [pcap->fd-1] = active_dev; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 225 | return (0); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | /* |
| 229 | * Poll the receiver queue and call the pcap callback-handler |
| 230 | * with the packet. |
| 231 | */ |
| 232 | static int |
| 233 | pcap_read_one (pcap_t *p, pcap_handler callback, u_char *data) |
| 234 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 235 | struct pcap_dos *pd = p->priv; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 236 | struct pcap_pkthdr pcap; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 237 | struct timeval now, expiry = { 0,0 }; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 238 | int rx_len = 0; |
| 239 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 240 | if (p->opt.timeout > 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 241 | { |
| 242 | gettimeofday2 (&now, NULL); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 243 | expiry.tv_usec = now.tv_usec + 1000UL * p->opt.timeout; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 244 | expiry.tv_sec = now.tv_sec; |
| 245 | while (expiry.tv_usec >= 1000000L) |
| 246 | { |
| 247 | expiry.tv_usec -= 1000000L; |
| 248 | expiry.tv_sec++; |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | while (!exc_occured) |
| 253 | { |
| 254 | volatile struct device *dev; /* might be reset by sig_handler */ |
| 255 | |
| 256 | dev = get_device (p->fd); |
| 257 | if (!dev) |
| 258 | break; |
| 259 | |
| 260 | PCAP_ASSERT (dev->copy_rx_buf || dev->peek_rx_buf); |
| 261 | FLUSHK(); |
| 262 | |
| 263 | /* If driver has a zero-copy receive facility, peek at the queue, |
| 264 | * filter it, do the callback and release the buffer. |
| 265 | */ |
| 266 | if (dev->peek_rx_buf) |
| 267 | { |
| 268 | PCAP_ASSERT (dev->release_rx_buf); |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 269 | rx_len = (*dev->peek_rx_buf) (&p->buffer); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 270 | } |
| 271 | else |
| 272 | { |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 273 | rx_len = (*dev->copy_rx_buf) (p->buffer, p->snapshot); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | if (rx_len > 0) /* got a packet */ |
| 277 | { |
| 278 | mac_count++; |
| 279 | |
| 280 | FLUSHK(); |
| 281 | |
| 282 | pcap.caplen = min (rx_len, p->snapshot); |
| 283 | pcap.len = rx_len; |
| 284 | |
| 285 | if (callback && |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 286 | (!p->fcode.bf_insns || pcap_filter(p->fcode.bf_insns, p->buffer, pcap.len, pcap.caplen))) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 287 | { |
| 288 | filter_count++; |
| 289 | |
| 290 | /* Fix-me!! Should be time of arrival. Not time of |
| 291 | * capture. |
| 292 | */ |
| 293 | gettimeofday2 (&pcap.ts, NULL); |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 294 | (*callback) (data, &pcap, p->buffer); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 295 | } |
| 296 | |
| 297 | if (dev->release_rx_buf) |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 298 | (*dev->release_rx_buf) (p->buffer); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 299 | |
| 300 | if (pcap_pkt_debug > 0) |
| 301 | { |
| 302 | if (callback == watt32_recv_hook) |
| 303 | dbug_write ("pcap_recv_hook\n"); |
| 304 | else dbug_write ("pcap_read_op\n"); |
| 305 | } |
| 306 | FLUSHK(); |
| 307 | return (1); |
| 308 | } |
| 309 | |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 310 | /* Has "pcap_breakloop()" been called? |
| 311 | */ |
| 312 | if (p->break_loop) { |
| 313 | /* |
| 314 | * Yes - clear the flag that indicates that it |
| 315 | * has, and return -2 to indicate that we were |
| 316 | * told to break out of the loop. |
| 317 | */ |
| 318 | p->break_loop = 0; |
| 319 | return (-2); |
| 320 | } |
| 321 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 322 | /* If not to wait for a packet or pcap_cleanup_dos() called from |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 323 | * e.g. SIGINT handler, exit loop now. |
| 324 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 325 | if (p->opt.timeout <= 0 || (volatile int)p->fd <= 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 326 | break; |
| 327 | |
| 328 | gettimeofday2 (&now, NULL); |
| 329 | |
| 330 | if (timercmp(&now, &expiry, >)) |
| 331 | break; |
| 332 | |
| 333 | #ifndef DJGPP |
| 334 | kbhit(); /* a real CPU hog */ |
| 335 | #endif |
| 336 | |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 337 | if (pd->wait_proc) |
| 338 | (*pd->wait_proc)(); /* call yield func */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 339 | } |
| 340 | |
| 341 | if (rx_len < 0) /* receive error */ |
| 342 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 343 | pd->stat.ps_drop++; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 344 | #ifdef USE_32BIT_DRIVERS |
| 345 | if (pcap_pkt_debug > 1) |
| 346 | printk ("pkt-err %s\n", pktInfo.error); |
| 347 | #endif |
| 348 | return (-1); |
| 349 | } |
| 350 | return (0); |
| 351 | } |
| 352 | |
| 353 | static int |
| 354 | pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback, u_char *data) |
| 355 | { |
| 356 | int rc, num = 0; |
| 357 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 358 | while (num <= cnt || PACKET_COUNT_IS_UNLIMITED(cnt)) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 359 | { |
| 360 | if (p->fd <= 0) |
| 361 | return (-1); |
| 362 | rc = pcap_read_one (p, callback, data); |
| 363 | if (rc > 0) |
| 364 | num++; |
| 365 | if (rc < 0) |
| 366 | break; |
| 367 | _w32_os_yield(); /* allow SIGINT generation, yield to Win95/NT */ |
| 368 | } |
| 369 | return (num); |
| 370 | } |
| 371 | |
| 372 | /* |
| 373 | * Return network statistics |
| 374 | */ |
| 375 | static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps) |
| 376 | { |
| 377 | struct net_device_stats *stats; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 378 | struct pcap_dos *pd; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 379 | struct device *dev = p ? get_device(p->fd) : NULL; |
| 380 | |
| 381 | if (!dev) |
| 382 | { |
| 383 | strcpy (p->errbuf, "illegal pcap handle"); |
| 384 | return (-1); |
| 385 | } |
| 386 | |
| 387 | if (!dev->get_stats || (stats = (*dev->get_stats)(dev)) == NULL) |
| 388 | { |
| 389 | strcpy (p->errbuf, "device statistics not available"); |
| 390 | return (-1); |
| 391 | } |
| 392 | |
| 393 | FLUSHK(); |
| 394 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 395 | pd = p->priv; |
| 396 | pd->stat.ps_recv = stats->rx_packets; |
| 397 | pd->stat.ps_drop += stats->rx_missed_errors; |
| 398 | pd->stat.ps_ifdrop = stats->rx_dropped + /* queue full */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 399 | stats->rx_errors; /* HW errors */ |
| 400 | if (ps) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 401 | *ps = pd->stat; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 402 | |
| 403 | return (0); |
| 404 | } |
| 405 | |
| 406 | /* |
| 407 | * Return detailed network/device statistics. |
| 408 | * May be called after 'dev->close' is called. |
| 409 | */ |
| 410 | int pcap_stats_ex (pcap_t *p, struct pcap_stat_ex *se) |
| 411 | { |
| 412 | struct device *dev = p ? get_device (p->fd) : NULL; |
| 413 | |
| 414 | if (!dev || !dev->get_stats) |
| 415 | { |
Haibo Huang | 4ccd683 | 2020-04-23 18:03:48 -0700 | [diff] [blame] | 416 | pcap_strlcpy (p->errbuf, "detailed device statistics not available", |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 417 | PCAP_ERRBUF_SIZE); |
| 418 | return (-1); |
| 419 | } |
| 420 | |
| 421 | if (!strnicmp(dev->name,"pkt",3)) |
| 422 | { |
Haibo Huang | 4ccd683 | 2020-04-23 18:03:48 -0700 | [diff] [blame] | 423 | pcap_strlcpy (p->errbuf, "pktdrvr doesn't have detailed statistics", |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 424 | PCAP_ERRBUF_SIZE); |
| 425 | return (-1); |
Elliott Hughes | d8845d7 | 2015-10-19 18:07:04 -0700 | [diff] [blame] | 426 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 427 | memcpy (se, (*dev->get_stats)(dev), sizeof(*se)); |
| 428 | return (0); |
| 429 | } |
| 430 | |
| 431 | /* |
| 432 | * Simply store the filter-code for the pcap_read_dos() callback |
| 433 | * Some day the filter-code could be handed down to the active |
| 434 | * device (pkt_rx1.s or 32-bit device interrupt handler). |
| 435 | */ |
| 436 | static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp) |
| 437 | { |
| 438 | if (!p) |
| 439 | return (-1); |
| 440 | p->fcode = *fp; |
| 441 | return (0); |
| 442 | } |
| 443 | |
| 444 | /* |
| 445 | * Return # of packets received in pcap_read_dos() |
| 446 | */ |
| 447 | u_long pcap_mac_packets (void) |
| 448 | { |
| 449 | return (mac_count); |
| 450 | } |
| 451 | |
| 452 | /* |
| 453 | * Return # of packets passed through filter in pcap_read_dos() |
| 454 | */ |
| 455 | u_long pcap_filter_packets (void) |
| 456 | { |
| 457 | return (filter_count); |
| 458 | } |
| 459 | |
| 460 | /* |
| 461 | * Close pcap device. Not called for offline captures. |
| 462 | */ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 463 | static void pcap_cleanup_dos (pcap_t *p) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 464 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 465 | struct pcap_dos *pd; |
| 466 | |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 467 | if (!exc_occured) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 468 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 469 | pd = p->priv; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 470 | if (pcap_stats(p,NULL) < 0) |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 471 | pd->stat.ps_drop = 0; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 472 | if (!get_device(p->fd)) |
| 473 | return; |
| 474 | |
| 475 | handle_to_device [p->fd-1] = NULL; |
| 476 | p->fd = 0; |
| 477 | if (ref_count > 0) |
| 478 | ref_count--; |
| 479 | if (ref_count > 0) |
| 480 | return; |
| 481 | } |
| 482 | close_driver(); |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 483 | /* XXX - call pcap_cleanup_live_common? */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | /* |
| 487 | * Return the name of the 1st network interface, |
| 488 | * or NULL if none can be found. |
| 489 | */ |
| 490 | char *pcap_lookupdev (char *ebuf) |
| 491 | { |
| 492 | struct device *dev; |
| 493 | |
| 494 | #ifdef USE_32BIT_DRIVERS |
| 495 | init_32bit(); |
| 496 | #endif |
| 497 | |
| 498 | for (dev = (struct device*)dev_base; dev; dev = dev->next) |
| 499 | { |
| 500 | PCAP_ASSERT (dev->probe); |
| 501 | |
| 502 | if ((*dev->probe)(dev)) |
| 503 | { |
| 504 | FLUSHK(); |
| 505 | probed_dev = (struct device*) dev; /* remember last probed device */ |
| 506 | return (char*) dev->name; |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | if (ebuf) |
| 511 | strcpy (ebuf, "No driver found"); |
| 512 | return (NULL); |
| 513 | } |
| 514 | |
| 515 | /* |
| 516 | * Gets localnet & netmask from Watt-32. |
| 517 | */ |
| 518 | int pcap_lookupnet (const char *device, bpf_u_int32 *localnet, |
| 519 | bpf_u_int32 *netmask, char *errbuf) |
| 520 | { |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 521 | DWORD mask, net; |
| 522 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 523 | if (!_watt_is_init) |
| 524 | { |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 525 | strcpy (errbuf, "pcap_open_offline() or pcap_activate() must be " |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 526 | "called first"); |
| 527 | return (-1); |
| 528 | } |
| 529 | |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 530 | mask = _w32_sin_mask; |
| 531 | net = my_ip_addr & mask; |
| 532 | if (net == 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 533 | { |
| 534 | if (IN_CLASSA(*netmask)) |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 535 | net = IN_CLASSA_NET; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 536 | else if (IN_CLASSB(*netmask)) |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 537 | net = IN_CLASSB_NET; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 538 | else if (IN_CLASSC(*netmask)) |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 539 | net = IN_CLASSC_NET; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 540 | else |
| 541 | { |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 542 | snprintf (errbuf, PCAP_ERRBUF_SIZE, "inet class for 0x%lx unknown", mask); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 543 | return (-1); |
| 544 | } |
| 545 | } |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 546 | *localnet = htonl (net); |
| 547 | *netmask = htonl (mask); |
| 548 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 549 | ARGSUSED (device); |
| 550 | return (0); |
Elliott Hughes | d8845d7 | 2015-10-19 18:07:04 -0700 | [diff] [blame] | 551 | } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 552 | |
| 553 | /* |
| 554 | * Get a list of all interfaces that are present and that we probe okay. |
| 555 | * Returns -1 on error, 0 otherwise. |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 556 | * The list may be NULL epty if no interfaces were up and could be opened. |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 557 | */ |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 558 | int pcap_platform_finddevs (pcap_if_list_t *devlistp, char *errbuf) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 559 | { |
| 560 | struct device *dev; |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 561 | pcap_if_t *curdev; |
| 562 | #if 0 /* Pkt drivers should have no addresses */ |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 563 | struct sockaddr_in sa_ll_1, sa_ll_2; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 564 | struct sockaddr *addr, *netmask, *broadaddr, *dstaddr; |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 565 | #endif |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 566 | int ret = 0; |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 567 | int found = 0; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 568 | |
| 569 | for (dev = (struct device*)dev_base; dev; dev = dev->next) |
| 570 | { |
| 571 | PCAP_ASSERT (dev->probe); |
| 572 | |
| 573 | if (!(*dev->probe)(dev)) |
| 574 | continue; |
| 575 | |
| 576 | PCAP_ASSERT (dev->close); /* set by probe routine */ |
| 577 | FLUSHK(); |
| 578 | (*dev->close) (dev); |
| 579 | |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 580 | /* |
| 581 | * XXX - find out whether it's up or running? Does that apply here? |
| 582 | * Can we find out if anything's plugged into the adapter, if it's |
| 583 | * a wired device, and set PCAP_IF_CONNECTION_STATUS_CONNECTED |
| 584 | * or PCAP_IF_CONNECTION_STATUS_DISCONNECTED? |
| 585 | */ |
| 586 | if ((curdev = add_dev(devlistp, dev->name, 0, |
| 587 | dev->long_name, errbuf)) == NULL) |
| 588 | { |
| 589 | ret = -1; |
| 590 | break; |
| 591 | } |
| 592 | found = 1; |
| 593 | #if 0 /* Pkt drivers should have no addresses */ |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 594 | memset (&sa_ll_1, 0, sizeof(sa_ll_1)); |
| 595 | memset (&sa_ll_2, 0, sizeof(sa_ll_2)); |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 596 | sa_ll_1.sin_family = AF_INET; |
| 597 | sa_ll_2.sin_family = AF_INET; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 598 | |
| 599 | addr = (struct sockaddr*) &sa_ll_1; |
| 600 | netmask = (struct sockaddr*) &sa_ll_1; |
| 601 | dstaddr = (struct sockaddr*) &sa_ll_1; |
| 602 | broadaddr = (struct sockaddr*) &sa_ll_2; |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 603 | memset (&sa_ll_2.sin_addr, 0xFF, sizeof(sa_ll_2.sin_addr)); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 604 | |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 605 | if (add_addr_to_dev(curdev, addr, sizeof(*addr), |
| 606 | netmask, sizeof(*netmask), |
| 607 | broadaddr, sizeof(*broadaddr), |
| 608 | dstaddr, sizeof(*dstaddr), errbuf) < 0) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 609 | { |
| 610 | ret = -1; |
| 611 | break; |
| 612 | } |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 613 | #endif |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 614 | } |
| 615 | |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 616 | if (ret == 0 && !found) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 617 | strcpy (errbuf, "No drivers found"); |
| 618 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 619 | return (ret); |
| 620 | } |
| 621 | |
| 622 | /* |
| 623 | * pcap_assert() is mainly used for debugging |
| 624 | */ |
| 625 | void pcap_assert (const char *what, const char *file, unsigned line) |
| 626 | { |
| 627 | FLUSHK(); |
| 628 | fprintf (stderr, "%s (%u): Assertion \"%s\" failed\n", |
| 629 | file, line, what); |
| 630 | close_driver(); |
| 631 | _exit (-1); |
| 632 | } |
| 633 | |
| 634 | /* |
| 635 | * For pcap_offline_read(): wait and yield between printing packets |
| 636 | * to simulate the pace packets where actually recorded. |
| 637 | */ |
| 638 | void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait) |
| 639 | { |
| 640 | if (p) |
| 641 | { |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 642 | struct pcap_dos *pd = p->priv; |
| 643 | |
| 644 | pd->wait_proc = yield; |
| 645 | p->opt.timeout = wait; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 646 | } |
| 647 | } |
| 648 | |
| 649 | /* |
| 650 | * Initialise a named network device. |
| 651 | */ |
| 652 | static struct device * |
| 653 | open_driver (const char *dev_name, char *ebuf, int promisc) |
| 654 | { |
| 655 | struct device *dev; |
| 656 | |
| 657 | for (dev = (struct device*)dev_base; dev; dev = dev->next) |
| 658 | { |
| 659 | PCAP_ASSERT (dev->name); |
| 660 | |
| 661 | if (strcmp (dev_name,dev->name)) |
| 662 | continue; |
| 663 | |
| 664 | if (!probed_dev) /* user didn't call pcap_lookupdev() first */ |
| 665 | { |
| 666 | PCAP_ASSERT (dev->probe); |
| 667 | |
| 668 | if (!(*dev->probe)(dev)) /* call the xx_probe() function */ |
| 669 | { |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 670 | snprintf (ebuf, PCAP_ERRBUF_SIZE, "failed to detect device `%s'", dev_name); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 671 | return (NULL); |
| 672 | } |
| 673 | probed_dev = dev; /* device is probed okay and may be used */ |
| 674 | } |
| 675 | else if (dev != probed_dev) |
| 676 | { |
| 677 | goto not_probed; |
| 678 | } |
| 679 | |
| 680 | FLUSHK(); |
| 681 | |
| 682 | /* Select what traffic to receive |
| 683 | */ |
| 684 | if (promisc) |
| 685 | dev->flags |= (IFF_ALLMULTI | IFF_PROMISC); |
| 686 | else dev->flags &= ~(IFF_ALLMULTI | IFF_PROMISC); |
| 687 | |
| 688 | PCAP_ASSERT (dev->open); |
| 689 | |
| 690 | if (!(*dev->open)(dev)) |
| 691 | { |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 692 | snprintf (ebuf, PCAP_ERRBUF_SIZE, "failed to activate device `%s'", dev_name); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 693 | if (pktInfo.error && !strncmp(dev->name,"pkt",3)) |
| 694 | { |
| 695 | strcat (ebuf, ": "); |
| 696 | strcat (ebuf, pktInfo.error); |
| 697 | } |
| 698 | return (NULL); |
| 699 | } |
| 700 | |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 701 | /* Some devices need this to operate in promiscuous mode |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 702 | */ |
| 703 | if (promisc && dev->set_multicast_list) |
| 704 | (*dev->set_multicast_list) (dev); |
| 705 | |
| 706 | active_dev = dev; /* remember our active device */ |
| 707 | break; |
| 708 | } |
| 709 | |
| 710 | /* 'dev_name' not matched in 'dev_base' list. |
| 711 | */ |
| 712 | if (!dev) |
| 713 | { |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 714 | snprintf (ebuf, PCAP_ERRBUF_SIZE, "device `%s' not supported", dev_name); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 715 | return (NULL); |
| 716 | } |
| 717 | |
| 718 | not_probed: |
| 719 | if (!probed_dev) |
| 720 | { |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 721 | snprintf (ebuf, PCAP_ERRBUF_SIZE, "device `%s' not probed", dev_name); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 722 | return (NULL); |
| 723 | } |
| 724 | return (dev); |
| 725 | } |
| 726 | |
| 727 | /* |
| 728 | * Deinitialise MAC driver. |
| 729 | * Set receive mode back to default mode. |
| 730 | */ |
| 731 | static void close_driver (void) |
| 732 | { |
| 733 | /* !!todo: loop over all 'handle_to_device[]' ? */ |
| 734 | struct device *dev = active_dev; |
| 735 | |
| 736 | if (dev && dev->close) |
| 737 | { |
| 738 | (*dev->close) (dev); |
| 739 | FLUSHK(); |
| 740 | } |
| 741 | |
| 742 | active_dev = NULL; |
| 743 | |
| 744 | #ifdef USE_32BIT_DRIVERS |
| 745 | if (rx_pool) |
| 746 | { |
| 747 | k_free (rx_pool); |
| 748 | rx_pool = NULL; |
| 749 | } |
| 750 | if (dev) |
| 751 | pcibios_exit(); |
| 752 | #endif |
| 753 | } |
| 754 | |
| 755 | |
| 756 | #ifdef __DJGPP__ |
| 757 | static void setup_signals (void (*handler)(int)) |
| 758 | { |
| 759 | signal (SIGSEGV,handler); |
| 760 | signal (SIGILL, handler); |
| 761 | signal (SIGFPE, handler); |
| 762 | } |
| 763 | |
| 764 | static void exc_handler (int sig) |
| 765 | { |
| 766 | #ifdef USE_32BIT_DRIVERS |
| 767 | if (active_dev->irq > 0) /* excludes IRQ 0 */ |
| 768 | { |
| 769 | disable_irq (active_dev->irq); |
| 770 | irq_eoi_cmd (active_dev->irq); |
| 771 | _printk_safe = 1; |
| 772 | } |
| 773 | #endif |
| 774 | |
| 775 | switch (sig) |
| 776 | { |
| 777 | case SIGSEGV: |
| 778 | fputs ("Catching SIGSEGV.\n", stderr); |
| 779 | break; |
| 780 | case SIGILL: |
| 781 | fputs ("Catching SIGILL.\n", stderr); |
| 782 | break; |
| 783 | case SIGFPE: |
| 784 | _fpreset(); |
| 785 | fputs ("Catching SIGFPE.\n", stderr); |
| 786 | break; |
| 787 | default: |
| 788 | fprintf (stderr, "Catching signal %d.\n", sig); |
| 789 | } |
| 790 | exc_occured = 1; |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 791 | close_driver(); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 792 | } |
| 793 | #endif /* __DJGPP__ */ |
| 794 | |
| 795 | |
| 796 | /* |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 797 | * Open the pcap device for the first client calling pcap_activate() |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 798 | */ |
| 799 | static int first_init (const char *name, char *ebuf, int promisc) |
| 800 | { |
| 801 | struct device *dev; |
| 802 | |
| 803 | #ifdef USE_32BIT_DRIVERS |
| 804 | rx_pool = k_calloc (RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE); |
| 805 | if (!rx_pool) |
| 806 | { |
| 807 | strcpy (ebuf, "Not enough memory (Rx pool)"); |
| 808 | return (0); |
| 809 | } |
| 810 | #endif |
| 811 | |
| 812 | #ifdef __DJGPP__ |
| 813 | setup_signals (exc_handler); |
| 814 | #endif |
| 815 | |
| 816 | #ifdef USE_32BIT_DRIVERS |
| 817 | init_32bit(); |
| 818 | #endif |
| 819 | |
| 820 | dev = open_driver (name, ebuf, promisc); |
| 821 | if (!dev) |
| 822 | { |
| 823 | #ifdef USE_32BIT_DRIVERS |
| 824 | k_free (rx_pool); |
| 825 | rx_pool = NULL; |
| 826 | #endif |
| 827 | |
| 828 | #ifdef __DJGPP__ |
| 829 | setup_signals (SIG_DFL); |
| 830 | #endif |
| 831 | return (0); |
| 832 | } |
| 833 | |
| 834 | #ifdef USE_32BIT_DRIVERS |
| 835 | /* |
| 836 | * If driver is NOT a 16-bit "pkt/ndis" driver (having a 'copy_rx_buf' |
| 837 | * set in it's probe handler), initialise near-memory ring-buffer for |
| 838 | * the 32-bit device. |
| 839 | */ |
| 840 | if (dev->copy_rx_buf == NULL) |
| 841 | { |
| 842 | dev->get_rx_buf = get_rxbuf; |
| 843 | dev->peek_rx_buf = peek_rxbuf; |
| 844 | dev->release_rx_buf = release_rxbuf; |
| 845 | pktq_init (&dev->queue, RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE, rx_pool); |
| 846 | } |
| 847 | #endif |
| 848 | return (1); |
| 849 | } |
| 850 | |
| 851 | #ifdef USE_32BIT_DRIVERS |
| 852 | static void init_32bit (void) |
| 853 | { |
| 854 | static int init_pci = 0; |
| 855 | |
| 856 | if (!_printk_file) |
| 857 | _printk_init (64*1024, NULL); /* calls atexit(printk_exit) */ |
| 858 | |
| 859 | if (!init_pci) |
| 860 | (void)pci_init(); /* init BIOS32+PCI interface */ |
| 861 | init_pci = 1; |
| 862 | } |
| 863 | #endif |
| 864 | |
| 865 | |
| 866 | /* |
| 867 | * Hook functions for using Watt-32 together with pcap |
| 868 | */ |
| 869 | static char rxbuf [ETH_MAX+100]; /* rx-buffer with some margin */ |
| 870 | static WORD etype; |
| 871 | static pcap_t pcap_save; |
| 872 | |
| 873 | static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap, |
| 874 | const u_char *buf) |
| 875 | { |
| 876 | /* Fix me: assumes Ethernet II only */ |
| 877 | struct ether_header *ep = (struct ether_header*) buf; |
| 878 | |
| 879 | memcpy (rxbuf, buf, pcap->caplen); |
| 880 | etype = ep->ether_type; |
| 881 | ARGSUSED (dummy); |
| 882 | } |
| 883 | |
| 884 | #if (WATTCP_VER >= 0x0224) |
| 885 | /* |
| 886 | * This function is used by Watt-32 to poll for a packet. |
| 887 | * i.e. it's set to bypass _eth_arrived() |
| 888 | */ |
| 889 | static void *pcap_recv_hook (WORD *type) |
| 890 | { |
| 891 | int len = pcap_read_dos (&pcap_save, 1, watt32_recv_hook, NULL); |
| 892 | |
| 893 | if (len < 0) |
| 894 | return (NULL); |
| 895 | |
| 896 | *type = etype; |
| 897 | return (void*) &rxbuf; |
| 898 | } |
| 899 | |
| 900 | /* |
| 901 | * This function is called by Watt-32 (via _eth_xmit_hook). |
| 902 | * If dbug_init() was called, we should trace packets sent. |
| 903 | */ |
| 904 | static int pcap_xmit_hook (const void *buf, unsigned len) |
| 905 | { |
| 906 | int rc = 0; |
| 907 | |
| 908 | if (pcap_pkt_debug > 0) |
| 909 | dbug_write ("pcap_xmit_hook: "); |
| 910 | |
| 911 | if (active_dev && active_dev->xmit) |
| 912 | if ((*active_dev->xmit) (active_dev, buf, len) > 0) |
| 913 | rc = len; |
| 914 | |
| 915 | if (pcap_pkt_debug > 0) |
| 916 | dbug_write (rc ? "ok\n" : "fail\n"); |
| 917 | return (rc); |
| 918 | } |
| 919 | #endif |
| 920 | |
| 921 | static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len) |
| 922 | { |
| 923 | struct device *dev = p ? get_device(p->fd) : NULL; |
| 924 | |
| 925 | if (!dev || !dev->xmit) |
| 926 | return (-1); |
| 927 | return (*dev->xmit) (dev, buf, len); |
| 928 | } |
| 929 | |
| 930 | /* |
| 931 | * This function is called by Watt-32 in tcp_post_init(). |
| 932 | * We should prevent Watt-32 from using BOOTP/DHCP/RARP etc. |
| 933 | */ |
| 934 | static void (*prev_post_hook) (void); |
| 935 | |
| 936 | static void pcap_init_hook (void) |
| 937 | { |
| 938 | _w32__bootp_on = _w32__dhcp_on = _w32__rarp_on = 0; |
| 939 | _w32__do_mask_req = 0; |
| 940 | _w32_dynamic_host = 0; |
| 941 | if (prev_post_hook) |
| 942 | (*prev_post_hook)(); |
| 943 | } |
| 944 | |
| 945 | /* |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 946 | * Suppress PRINT message from Watt-32's sock_init() |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 947 | */ |
| 948 | static void null_print (void) {} |
| 949 | |
| 950 | /* |
| 951 | * To use features of Watt-32 (netdb functions and socket etc.) |
| 952 | * we must call sock_init(). But we set various hooks to prevent |
| 953 | * using normal PKTDRVR functions in pcpkt.c. This should hopefully |
| 954 | * make Watt-32 and pcap co-operate. |
| 955 | */ |
| 956 | static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf) |
| 957 | { |
| 958 | char *env; |
| 959 | int rc, MTU, has_ip_addr; |
| 960 | int using_pktdrv = 1; |
| 961 | |
| 962 | /* If user called sock_init() first, we need to reinit in |
| 963 | * order to open debug/trace-file properly |
| 964 | */ |
| 965 | if (_watt_is_init) |
| 966 | sock_exit(); |
| 967 | |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 968 | env = getenv ("PCAP_TRACE"); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 969 | if (env && atoi(env) > 0 && |
| 970 | pcap_pkt_debug < 0) /* if not already set */ |
| 971 | { |
| 972 | dbug_init(); |
| 973 | pcap_pkt_debug = atoi (env); |
| 974 | } |
| 975 | |
| 976 | _watt_do_exit = 0; /* prevent sock_init() calling exit() */ |
| 977 | prev_post_hook = _w32_usr_post_init; |
| 978 | _w32_usr_post_init = pcap_init_hook; |
| 979 | _w32_print_hook = null_print; |
| 980 | |
| 981 | if (dev_name && strncmp(dev_name,"pkt",3)) |
| 982 | using_pktdrv = FALSE; |
| 983 | |
| 984 | rc = sock_init(); |
| 985 | has_ip_addr = (rc != 8); /* IP-address assignment failed */ |
| 986 | |
| 987 | /* if pcap is using a 32-bit driver w/o a pktdrvr loaded, we |
| 988 | * just pretend Watt-32 is initialised okay. |
| 989 | * |
| 990 | * !! fix-me: The Watt-32 config isn't done if no pktdrvr |
| 991 | * was found. In that case my_ip_addr + sin_mask |
| 992 | * have default values. Should be taken from another |
| 993 | * ini-file/environment in any case (ref. tcpdump.ini) |
| 994 | */ |
Elliott Hughes | d8845d7 | 2015-10-19 18:07:04 -0700 | [diff] [blame] | 995 | _watt_is_init = 1; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 996 | |
| 997 | if (!using_pktdrv || !has_ip_addr) /* for now .... */ |
| 998 | { |
| 999 | static const char myip[] = "192.168.0.1"; |
| 1000 | static const char mask[] = "255.255.255.0"; |
| 1001 | |
| 1002 | printf ("Just guessing, using IP %s and netmask %s\n", myip, mask); |
| 1003 | my_ip_addr = aton (myip); |
| 1004 | _w32_sin_mask = aton (mask); |
| 1005 | } |
| 1006 | else if (rc && using_pktdrv) |
| 1007 | { |
Haibo Huang | ee759ce | 2021-01-05 21:34:29 -0800 | [diff] [blame] | 1008 | snprintf (err_buf, PCAP_ERRBUF_SIZE, "sock_init() failed, code %d", rc); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1009 | return (0); |
| 1010 | } |
| 1011 | |
| 1012 | /* Set recv-hook for peeking in _eth_arrived(). |
| 1013 | */ |
| 1014 | #if (WATTCP_VER >= 0x0224) |
| 1015 | _eth_recv_hook = pcap_recv_hook; |
| 1016 | _eth_xmit_hook = pcap_xmit_hook; |
| 1017 | #endif |
| 1018 | |
| 1019 | /* Free the pkt-drvr handle allocated in pkt_init(). |
| 1020 | * The above hooks should thus use the handle reopened in open_driver() |
| 1021 | */ |
| 1022 | if (using_pktdrv) |
| 1023 | { |
| 1024 | _eth_release(); |
| 1025 | /* _eth_is_init = 1; */ /* hack to get Rx/Tx-hooks in Watt-32 working */ |
| 1026 | } |
| 1027 | |
| 1028 | memcpy (&pcap_save, pcap, sizeof(pcap_save)); |
| 1029 | MTU = pkt_get_mtu(); |
| 1030 | pcap_save.fcode.bf_insns = NULL; |
| 1031 | pcap_save.linktype = _eth_get_hwtype (NULL, NULL); |
| 1032 | pcap_save.snapshot = MTU > 0 ? MTU : ETH_MAX; /* assume 1514 */ |
| 1033 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1034 | /* prevent use of resolve() and resolve_ip() |
| 1035 | */ |
| 1036 | last_nameserver = 0; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1037 | return (1); |
| 1038 | } |
| 1039 | |
| 1040 | int EISA_bus = 0; /* Where is natural place for this? */ |
| 1041 | |
| 1042 | /* |
| 1043 | * Application config hooks to set various driver parameters. |
| 1044 | */ |
| 1045 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 1046 | static const struct config_table debug_tab[] = { |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1047 | { "PKT.DEBUG", ARG_ATOI, &pcap_pkt_debug }, |
| 1048 | { "PKT.VECTOR", ARG_ATOX_W, NULL }, |
| 1049 | { "NDIS.DEBUG", ARG_ATOI, NULL }, |
| 1050 | #ifdef USE_32BIT_DRIVERS |
| 1051 | { "3C503.DEBUG", ARG_ATOI, &ei_debug }, |
| 1052 | { "3C503.IO_BASE", ARG_ATOX_W, &el2_dev.base_addr }, |
| 1053 | { "3C503.MEMORY", ARG_ATOX_W, &el2_dev.mem_start }, |
| 1054 | { "3C503.IRQ", ARG_ATOI, &el2_dev.irq }, |
| 1055 | { "3C505.DEBUG", ARG_ATOI, NULL }, |
| 1056 | { "3C505.BASE", ARG_ATOX_W, NULL }, |
| 1057 | { "3C507.DEBUG", ARG_ATOI, NULL }, |
| 1058 | { "3C509.DEBUG", ARG_ATOI, &el3_debug }, |
| 1059 | { "3C509.ILOOP", ARG_ATOI, &el3_max_loop }, |
| 1060 | { "3C529.DEBUG", ARG_ATOI, NULL }, |
| 1061 | { "3C575.DEBUG", ARG_ATOI, &debug_3c575 }, |
| 1062 | { "3C59X.DEBUG", ARG_ATOI, &vortex_debug }, |
| 1063 | { "3C59X.IFACE0", ARG_ATOI, &vortex_options[0] }, |
| 1064 | { "3C59X.IFACE1", ARG_ATOI, &vortex_options[1] }, |
| 1065 | { "3C59X.IFACE2", ARG_ATOI, &vortex_options[2] }, |
| 1066 | { "3C59X.IFACE3", ARG_ATOI, &vortex_options[3] }, |
| 1067 | { "3C90X.DEBUG", ARG_ATOX_W, &tc90xbc_debug }, |
| 1068 | { "ACCT.DEBUG", ARG_ATOI, ðpk_debug }, |
| 1069 | { "CS89.DEBUG", ARG_ATOI, &cs89_debug }, |
| 1070 | { "RTL8139.DEBUG", ARG_ATOI, &rtl8139_debug }, |
| 1071 | /* { "RTL8139.FDUPLEX", ARG_ATOI, &rtl8139_options }, */ |
| 1072 | { "SMC.DEBUG", ARG_ATOI, &ei_debug }, |
| 1073 | /* { "E100.DEBUG", ARG_ATOI, &e100_debug }, */ |
| 1074 | { "PCI.DEBUG", ARG_ATOI, &pci_debug }, |
| 1075 | { "BIOS32.DEBUG", ARG_ATOI, &bios32_debug }, |
| 1076 | { "IRQ.DEBUG", ARG_ATOI, &irq_debug }, |
| 1077 | { "TIMER.IRQ", ARG_ATOI, &timer_irq }, |
| 1078 | #endif |
| 1079 | { NULL } |
| 1080 | }; |
| 1081 | |
| 1082 | /* |
| 1083 | * pcap_config_hook() is an extension to application's config |
| 1084 | * handling. Uses Watt-32's config-table function. |
| 1085 | */ |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 1086 | int pcap_config_hook (const char *keyword, const char *value) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1087 | { |
Elliott Hughes | 965a4b5 | 2017-05-15 10:37:39 -0700 | [diff] [blame] | 1088 | return parse_config_table (debug_tab, NULL, keyword, value); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | /* |
| 1092 | * Linked list of supported devices |
| 1093 | */ |
| 1094 | struct device *active_dev = NULL; /* the device we have opened */ |
| 1095 | struct device *probed_dev = NULL; /* the device we have probed */ |
| 1096 | const struct device *dev_base = &pkt_dev; /* list of network devices */ |
| 1097 | |
| 1098 | /* |
| 1099 | * PKTDRVR device functions |
| 1100 | */ |
| 1101 | int pcap_pkt_debug = -1; |
| 1102 | |
| 1103 | static void pkt_close (struct device *dev) |
| 1104 | { |
| 1105 | BOOL okay = PktExitDriver(); |
| 1106 | |
| 1107 | if (pcap_pkt_debug > 1) |
| 1108 | fprintf (stderr, "pkt_close(): %d\n", okay); |
| 1109 | |
| 1110 | if (dev->priv) |
| 1111 | free (dev->priv); |
| 1112 | dev->priv = NULL; |
| 1113 | } |
| 1114 | |
| 1115 | static int pkt_open (struct device *dev) |
| 1116 | { |
| 1117 | PKT_RX_MODE mode; |
| 1118 | |
| 1119 | if (dev->flags & IFF_PROMISC) |
| 1120 | mode = PDRX_ALL_PACKETS; |
| 1121 | else mode = PDRX_BROADCAST; |
| 1122 | |
| 1123 | if (!PktInitDriver(mode)) |
| 1124 | return (0); |
Elliott Hughes | d8845d7 | 2015-10-19 18:07:04 -0700 | [diff] [blame] | 1125 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1126 | PktResetStatistics (pktInfo.handle); |
| 1127 | PktQueueBusy (FALSE); |
| 1128 | return (1); |
| 1129 | } |
| 1130 | |
| 1131 | static int pkt_xmit (struct device *dev, const void *buf, int len) |
| 1132 | { |
| 1133 | struct net_device_stats *stats = (struct net_device_stats*) dev->priv; |
| 1134 | |
| 1135 | if (pcap_pkt_debug > 0) |
| 1136 | dbug_write ("pcap_xmit\n"); |
| 1137 | |
| 1138 | if (!PktTransmit(buf,len)) |
| 1139 | { |
| 1140 | stats->tx_errors++; |
| 1141 | return (0); |
| 1142 | } |
| 1143 | return (len); |
| 1144 | } |
| 1145 | |
| 1146 | static void *pkt_stats (struct device *dev) |
| 1147 | { |
| 1148 | struct net_device_stats *stats = (struct net_device_stats*) dev->priv; |
| 1149 | |
| 1150 | if (!stats || !PktSessStatistics(pktInfo.handle)) |
| 1151 | return (NULL); |
| 1152 | |
| 1153 | stats->rx_packets = pktStat.inPackets; |
| 1154 | stats->rx_errors = pktStat.lost; |
| 1155 | stats->rx_missed_errors = PktRxDropped(); |
| 1156 | return (stats); |
| 1157 | } |
| 1158 | |
| 1159 | static int pkt_probe (struct device *dev) |
| 1160 | { |
| 1161 | if (!PktSearchDriver()) |
| 1162 | return (0); |
| 1163 | |
| 1164 | dev->open = pkt_open; |
| 1165 | dev->xmit = pkt_xmit; |
| 1166 | dev->close = pkt_close; |
| 1167 | dev->get_stats = pkt_stats; |
| 1168 | dev->copy_rx_buf = PktReceive; /* farmem peek and copy routine */ |
| 1169 | dev->get_rx_buf = NULL; |
| 1170 | dev->peek_rx_buf = NULL; |
| 1171 | dev->release_rx_buf = NULL; |
| 1172 | dev->priv = calloc (sizeof(struct net_device_stats), 1); |
| 1173 | if (!dev->priv) |
| 1174 | return (0); |
| 1175 | return (1); |
| 1176 | } |
| 1177 | |
| 1178 | /* |
| 1179 | * NDIS device functions |
| 1180 | */ |
| 1181 | static void ndis_close (struct device *dev) |
| 1182 | { |
| 1183 | #ifdef USE_NDIS2 |
| 1184 | NdisShutdown(); |
| 1185 | #endif |
| 1186 | ARGSUSED (dev); |
| 1187 | } |
| 1188 | |
| 1189 | static int ndis_open (struct device *dev) |
| 1190 | { |
| 1191 | int promis = (dev->flags & IFF_PROMISC); |
| 1192 | |
| 1193 | #ifdef USE_NDIS2 |
| 1194 | if (!NdisInit(promis)) |
| 1195 | return (0); |
| 1196 | return (1); |
| 1197 | #else |
| 1198 | ARGSUSED (promis); |
| 1199 | return (0); |
| 1200 | #endif |
| 1201 | } |
| 1202 | |
| 1203 | static void *ndis_stats (struct device *dev) |
| 1204 | { |
| 1205 | static struct net_device_stats stats; |
| 1206 | |
| 1207 | /* to-do */ |
| 1208 | ARGSUSED (dev); |
| 1209 | return (&stats); |
| 1210 | } |
| 1211 | |
| 1212 | static int ndis_probe (struct device *dev) |
| 1213 | { |
| 1214 | #ifdef USE_NDIS2 |
| 1215 | if (!NdisOpen()) |
| 1216 | return (0); |
| 1217 | #endif |
| 1218 | |
| 1219 | dev->open = ndis_open; |
| 1220 | dev->xmit = NULL; |
| 1221 | dev->close = ndis_close; |
| 1222 | dev->get_stats = ndis_stats; |
| 1223 | dev->copy_rx_buf = NULL; /* to-do */ |
| 1224 | dev->get_rx_buf = NULL; /* upcall is from rmode driver */ |
| 1225 | dev->peek_rx_buf = NULL; |
| 1226 | dev->release_rx_buf = NULL; |
| 1227 | return (0); |
| 1228 | } |
| 1229 | |
| 1230 | /* |
| 1231 | * Search & probe for supported 32-bit (pmode) pcap devices |
| 1232 | */ |
| 1233 | #if defined(USE_32BIT_DRIVERS) |
| 1234 | |
| 1235 | struct device el2_dev LOCKED_VAR = { |
| 1236 | "3c503", |
| 1237 | "EtherLink II", |
| 1238 | 0, |
| 1239 | 0,0,0,0,0,0, |
| 1240 | NULL, |
| 1241 | el2_probe |
| 1242 | }; |
| 1243 | |
| 1244 | struct device el3_dev LOCKED_VAR = { |
| 1245 | "3c509", |
| 1246 | "EtherLink III", |
| 1247 | 0, |
| 1248 | 0,0,0,0,0,0, |
| 1249 | &el2_dev, |
| 1250 | el3_probe |
| 1251 | }; |
| 1252 | |
| 1253 | struct device tc515_dev LOCKED_VAR = { |
| 1254 | "3c515", |
| 1255 | "EtherLink PCI", |
| 1256 | 0, |
| 1257 | 0,0,0,0,0,0, |
| 1258 | &el3_dev, |
| 1259 | tc515_probe |
| 1260 | }; |
| 1261 | |
| 1262 | struct device tc59_dev LOCKED_VAR = { |
| 1263 | "3c59x", |
| 1264 | "EtherLink PCI", |
| 1265 | 0, |
| 1266 | 0,0,0,0,0,0, |
| 1267 | &tc515_dev, |
| 1268 | tc59x_probe |
| 1269 | }; |
| 1270 | |
| 1271 | struct device tc90xbc_dev LOCKED_VAR = { |
| 1272 | "3c90x", |
| 1273 | "EtherLink 90X", |
| 1274 | 0, |
| 1275 | 0,0,0,0,0,0, |
| 1276 | &tc59_dev, |
| 1277 | tc90xbc_probe |
| 1278 | }; |
| 1279 | |
| 1280 | struct device wd_dev LOCKED_VAR = { |
| 1281 | "wd", |
| 1282 | "Westen Digital", |
| 1283 | 0, |
| 1284 | 0,0,0,0,0,0, |
| 1285 | &tc90xbc_dev, |
| 1286 | wd_probe |
| 1287 | }; |
| 1288 | |
| 1289 | struct device ne_dev LOCKED_VAR = { |
| 1290 | "ne", |
| 1291 | "NEx000", |
| 1292 | 0, |
| 1293 | 0,0,0,0,0,0, |
| 1294 | &wd_dev, |
| 1295 | ne_probe |
| 1296 | }; |
| 1297 | |
| 1298 | struct device acct_dev LOCKED_VAR = { |
| 1299 | "acct", |
| 1300 | "Accton EtherPocket", |
| 1301 | 0, |
| 1302 | 0,0,0,0,0,0, |
| 1303 | &ne_dev, |
| 1304 | ethpk_probe |
| 1305 | }; |
| 1306 | |
| 1307 | struct device cs89_dev LOCKED_VAR = { |
| 1308 | "cs89", |
| 1309 | "Crystal Semiconductor", |
| 1310 | 0, |
| 1311 | 0,0,0,0,0,0, |
| 1312 | &acct_dev, |
| 1313 | cs89x0_probe |
| 1314 | }; |
| 1315 | |
| 1316 | struct device rtl8139_dev LOCKED_VAR = { |
| 1317 | "rtl8139", |
| 1318 | "RealTek PCI", |
| 1319 | 0, |
| 1320 | 0,0,0,0,0,0, |
| 1321 | &cs89_dev, |
| 1322 | rtl8139_probe /* dev->probe routine */ |
Elliott Hughes | d8845d7 | 2015-10-19 18:07:04 -0700 | [diff] [blame] | 1323 | }; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1324 | |
| 1325 | /* |
| 1326 | * Dequeue routine is called by polling. |
| 1327 | * NOTE: the queue-element is not copied, only a pointer is |
| 1328 | * returned at '*buf' |
| 1329 | */ |
| 1330 | int peek_rxbuf (BYTE **buf) |
| 1331 | { |
| 1332 | struct rx_elem *tail, *head; |
| 1333 | |
| 1334 | PCAP_ASSERT (pktq_check (&active_dev->queue)); |
| 1335 | |
| 1336 | DISABLE(); |
| 1337 | tail = pktq_out_elem (&active_dev->queue); |
| 1338 | head = pktq_in_elem (&active_dev->queue); |
| 1339 | ENABLE(); |
| 1340 | |
| 1341 | if (head != tail) |
| 1342 | { |
| 1343 | PCAP_ASSERT (tail->size < active_dev->queue.elem_size-4-2); |
| 1344 | |
| 1345 | *buf = &tail->data[0]; |
| 1346 | return (tail->size); |
| 1347 | } |
| 1348 | *buf = NULL; |
| 1349 | return (0); |
| 1350 | } |
| 1351 | |
| 1352 | /* |
| 1353 | * Release buffer we peeked at above. |
| 1354 | */ |
| 1355 | int release_rxbuf (BYTE *buf) |
| 1356 | { |
| 1357 | #ifndef NDEBUG |
| 1358 | struct rx_elem *tail = pktq_out_elem (&active_dev->queue); |
| 1359 | |
| 1360 | PCAP_ASSERT (&tail->data[0] == buf); |
| 1361 | #else |
| 1362 | ARGSUSED (buf); |
| 1363 | #endif |
| 1364 | pktq_inc_out (&active_dev->queue); |
| 1365 | return (1); |
| 1366 | } |
| 1367 | |
| 1368 | /* |
| 1369 | * get_rxbuf() routine (in locked code) is called from IRQ handler |
| 1370 | * to request a buffer. Interrupts are disabled and we have a 32kB stack. |
| 1371 | */ |
| 1372 | BYTE *get_rxbuf (int len) |
| 1373 | { |
| 1374 | int idx; |
| 1375 | |
| 1376 | if (len < ETH_MIN || len > ETH_MAX) |
| 1377 | return (NULL); |
| 1378 | |
| 1379 | idx = pktq_in_index (&active_dev->queue); |
| 1380 | |
| 1381 | #ifdef DEBUG |
| 1382 | { |
| 1383 | static int fan_idx LOCKED_VAR = 0; |
| 1384 | writew ("-\\|/"[fan_idx++] | (15 << 8), /* white on black colour */ |
| 1385 | 0xB8000 + 2*79); /* upper-right corner, 80-col colour screen */ |
| 1386 | fan_idx &= 3; |
| 1387 | } |
| 1388 | /* writew (idx + '0' + 0x0F00, 0xB8000 + 2*78); */ |
| 1389 | #endif |
| 1390 | |
| 1391 | if (idx != active_dev->queue.out_index) |
| 1392 | { |
| 1393 | struct rx_elem *head = pktq_in_elem (&active_dev->queue); |
| 1394 | |
| 1395 | head->size = len; |
| 1396 | active_dev->queue.in_index = idx; |
| 1397 | return (&head->data[0]); |
| 1398 | } |
| 1399 | |
| 1400 | /* !!to-do: drop 25% of the oldest element |
| 1401 | */ |
| 1402 | pktq_clear (&active_dev->queue); |
| 1403 | return (NULL); |
| 1404 | } |
| 1405 | |
| 1406 | /* |
| 1407 | * Simple ring-buffer queue handler for reception of packets |
| 1408 | * from network driver. |
| 1409 | */ |
| 1410 | #define PKTQ_MARKER 0xDEADBEEF |
| 1411 | |
| 1412 | static int pktq_check (struct rx_ringbuf *q) |
| 1413 | { |
| 1414 | #ifndef NDEBUG |
| 1415 | int i; |
| 1416 | char *buf; |
| 1417 | #endif |
| 1418 | |
| 1419 | if (!q || !q->num_elem || !q->buf_start) |
| 1420 | return (0); |
| 1421 | |
| 1422 | #ifndef NDEBUG |
| 1423 | buf = q->buf_start; |
| 1424 | |
| 1425 | for (i = 0; i < q->num_elem; i++) |
| 1426 | { |
| 1427 | buf += q->elem_size; |
| 1428 | if (*(DWORD*)(buf - sizeof(DWORD)) != PKTQ_MARKER) |
| 1429 | return (0); |
| 1430 | } |
| 1431 | #endif |
| 1432 | return (1); |
| 1433 | } |
| 1434 | |
| 1435 | static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool) |
| 1436 | { |
| 1437 | int i; |
| 1438 | |
| 1439 | q->elem_size = size; |
| 1440 | q->num_elem = num; |
| 1441 | q->buf_start = pool; |
| 1442 | q->in_index = 0; |
| 1443 | q->out_index = 0; |
| 1444 | |
| 1445 | PCAP_ASSERT (size >= sizeof(struct rx_elem) + sizeof(DWORD)); |
| 1446 | PCAP_ASSERT (num); |
| 1447 | PCAP_ASSERT (pool); |
| 1448 | |
| 1449 | for (i = 0; i < num; i++) |
| 1450 | { |
| 1451 | #if 0 |
| 1452 | struct rx_elem *elem = (struct rx_elem*) pool; |
| 1453 | |
| 1454 | /* assert dword aligned elements |
| 1455 | */ |
| 1456 | PCAP_ASSERT (((unsigned)(&elem->data[0]) & 3) == 0); |
| 1457 | #endif |
| 1458 | pool += size; |
| 1459 | *(DWORD*) (pool - sizeof(DWORD)) = PKTQ_MARKER; |
| 1460 | } |
| 1461 | return (1); |
| 1462 | } |
| 1463 | |
| 1464 | /* |
| 1465 | * Increment the queue 'out_index' (tail). |
| 1466 | * Check for wraps. |
| 1467 | */ |
| 1468 | static int pktq_inc_out (struct rx_ringbuf *q) |
| 1469 | { |
| 1470 | q->out_index++; |
| 1471 | if (q->out_index >= q->num_elem) |
| 1472 | q->out_index = 0; |
| 1473 | return (q->out_index); |
| 1474 | } |
| 1475 | |
| 1476 | /* |
| 1477 | * Return the queue's next 'in_index' (head). |
| 1478 | * Check for wraps. |
| 1479 | */ |
| 1480 | static int pktq_in_index (struct rx_ringbuf *q) |
| 1481 | { |
| 1482 | volatile int index = q->in_index + 1; |
| 1483 | |
| 1484 | if (index >= q->num_elem) |
| 1485 | index = 0; |
| 1486 | return (index); |
| 1487 | } |
| 1488 | |
| 1489 | /* |
| 1490 | * Return the queue's head-buffer. |
| 1491 | */ |
| 1492 | static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q) |
| 1493 | { |
| 1494 | return (struct rx_elem*) (q->buf_start + (q->elem_size * q->in_index)); |
| 1495 | } |
| 1496 | |
| 1497 | /* |
| 1498 | * Return the queue's tail-buffer. |
| 1499 | */ |
| 1500 | static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q) |
| 1501 | { |
| 1502 | return (struct rx_elem*) (q->buf_start + (q->elem_size * q->out_index)); |
| 1503 | } |
| 1504 | |
| 1505 | /* |
| 1506 | * Clear the queue ring-buffer by setting head=tail. |
| 1507 | */ |
| 1508 | static void pktq_clear (struct rx_ringbuf *q) |
| 1509 | { |
| 1510 | q->in_index = q->out_index; |
| 1511 | } |
| 1512 | |
| 1513 | /* |
| 1514 | * Symbols that must be linkable for "gcc -O0" |
| 1515 | */ |
| 1516 | #undef __IOPORT_H |
| 1517 | #undef __DMA_H |
| 1518 | |
| 1519 | #define extern |
| 1520 | #define __inline__ |
| 1521 | |
| 1522 | #include "msdos/pm_drvr/ioport.h" |
| 1523 | #include "msdos/pm_drvr/dma.h" |
| 1524 | |
| 1525 | #endif /* USE_32BIT_DRIVERS */ |
| 1526 | |
Haibo Huang | 165065a | 2018-07-23 17:26:52 -0700 | [diff] [blame] | 1527 | /* |
| 1528 | * Libpcap version string. |
| 1529 | */ |
| 1530 | const char * |
| 1531 | pcap_lib_version(void) |
| 1532 | { |
| 1533 | return ("DOS-" PCAP_VERSION_STRING); |
| 1534 | } |