2 * This file is part of DOS-libpcap
3 * Ported to DOS/DOSX by G. Vanem <giva@bgnett.no>
5 * pcap-dos.c: Interface to PKTDRVR, NDIS2 and 32-bit pmode
8 * @(#) $Header: /tcpdump/master/libpcap/pcap-dos.c,v 1.1 2004/12/18 08:52:10 guy Exp $ (LBL)
19 #if defined(USE_32BIT_DRIVERS)
20 #include "msdos/pm_drvr/pmdrvr.h"
21 #include "msdos/pm_drvr/pci.h"
22 #include "msdos/pm_drvr/bios32.h"
23 #include "msdos/pm_drvr/module.h"
24 #include "msdos/pm_drvr/3c501.h"
25 #include "msdos/pm_drvr/3c503.h"
26 #include "msdos/pm_drvr/3c509.h"
27 #include "msdos/pm_drvr/3c59x.h"
28 #include "msdos/pm_drvr/3c515.h"
29 #include "msdos/pm_drvr/3c90x.h"
30 #include "msdos/pm_drvr/3c575_cb.h"
31 #include "msdos/pm_drvr/ne.h"
32 #include "msdos/pm_drvr/wd.h"
33 #include "msdos/pm_drvr/accton.h"
34 #include "msdos/pm_drvr/cs89x0.h"
35 #include "msdos/pm_drvr/rtl8139.h"
36 #include "msdos/pm_drvr/ne2k-pci.h"
42 #include "msdos/pktdrvr.h"
45 #include "msdos/ndis2.h"
48 #include <arpa/inet.h>
50 #include <net/if_arp.h>
51 #include <net/if_ether.h>
52 #include <net/if_packe.h>
55 #if defined(USE_32BIT_DRIVERS)
56 #define FLUSHK() do { _printk_safe = 1; _printk_flush(); } while (0)
57 #define NDIS_NEXT_DEV &rtl8139_dev
59 static char *rx_pool = NULL;
60 static void init_32bit (void);
62 static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool);
63 static int pktq_check (struct rx_ringbuf *q);
64 static int pktq_inc_out (struct rx_ringbuf *q);
65 static int pktq_in_index (struct rx_ringbuf *q) LOCKED_FUNC;
66 static void pktq_clear (struct rx_ringbuf *q) LOCKED_FUNC;
68 static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q) LOCKED_FUNC;
69 static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q);
72 #define FLUSHK() ((void)0)
73 #define NDIS_NEXT_DEV NULL
77 * Internal variables/functions in Watt-32
79 extern WORD _pktdevclass;
80 extern BOOL _eth_is_init;
81 extern int _w32_dynamic_host;
82 extern int _watt_do_exit;
83 extern int _watt_is_init;
84 extern int _w32__bootp_on, _w32__dhcp_on, _w32__rarp_on, _w32__do_mask_req;
85 extern void (*_w32_usr_post_init) (void);
86 extern void (*_w32_print_hook)();
88 extern void dbug_write (const char *); /* Watt-32 lib, pcdbug.c */
89 extern int pkt_get_mtu (void);
91 static int ref_count = 0;
93 static u_long mac_count = 0;
94 static u_long filter_count = 0;
96 static volatile BOOL exc_occured = 0;
98 static struct device *handle_to_device [20];
100 static int pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback,
102 static void pcap_close_dos (pcap_t *p);
103 static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps);
104 static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len);
105 static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp);
107 static int ndis_probe (struct device *dev);
108 static int pkt_probe (struct device *dev);
110 static void close_driver (void);
111 static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf);
112 static int first_init (const char *name, char *ebuf, int promisc);
114 static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap,
118 * These are the device we always support
120 static struct device ndis_dev = {
125 NDIS_NEXT_DEV, /* NULL or a 32-bit device */
129 static struct device pkt_dev = {
138 static struct device *get_device (int fd)
140 if (fd <= 0 || fd >= sizeof(handle_to_device)/sizeof(handle_to_device[0]))
142 return handle_to_device [fd-1];
146 * Open MAC-driver with name 'device_name' for live capture of
149 pcap_t *pcap_open_live (const char *device_name, int snaplen, int promisc,
150 int timeout_ms, char *errbuf)
154 if (snaplen < ETH_MIN)
157 if (snaplen > ETH_MAX) /* silently accept and truncate large MTUs */
160 pcap = calloc (sizeof(*pcap), 1);
163 strcpy (errbuf, "Not enough memory (pcap)");
167 pcap->snapshot = max (ETH_MIN+8, snaplen);
168 pcap->linktype = DLT_EN10MB; /* !! */
169 pcap->inter_packet_wait = timeout_ms;
170 pcap->close_op = pcap_close_dos;
171 pcap->read_op = pcap_read_dos;
172 pcap->stats_op = pcap_stats_dos;
173 pcap->inject_op = pcap_sendpacket_dos;
174 pcap->setfilter_op = pcap_setfilter_dos;
175 pcap->fd = ++ref_count;
177 if (pcap->fd == 1) /* first time we're called */
179 if (!init_watt32(pcap, device_name, errbuf) ||
180 !first_init(device_name, errbuf, promisc))
185 atexit (close_driver);
187 else if (stricmp(active_dev->name,device_name))
189 snprintf (errbuf, PCAP_ERRBUF_SIZE,
190 "Cannot use different devices simultaneously "
191 "(`%s' vs. `%s')", active_dev->name, device_name);
195 handle_to_device [pcap->fd-1] = active_dev;
200 * Poll the receiver queue and call the pcap callback-handler
204 pcap_read_one (pcap_t *p, pcap_handler callback, u_char *data)
206 struct pcap_pkthdr pcap;
207 struct bpf_insn *fcode = p->fcode.bf_insns;
208 struct timeval now, expiry;
212 if (p->inter_packet_wait > 0)
214 gettimeofday2 (&now, NULL);
215 expiry.tv_usec = now.tv_usec + 1000UL * p->inter_packet_wait;
216 expiry.tv_sec = now.tv_sec;
217 while (expiry.tv_usec >= 1000000L)
219 expiry.tv_usec -= 1000000L;
226 volatile struct device *dev; /* might be reset by sig_handler */
228 dev = get_device (p->fd);
232 PCAP_ASSERT (dev->copy_rx_buf || dev->peek_rx_buf);
235 /* If driver has a zero-copy receive facility, peek at the queue,
236 * filter it, do the callback and release the buffer.
238 if (dev->peek_rx_buf)
240 PCAP_ASSERT (dev->release_rx_buf);
241 rx_len = (*dev->peek_rx_buf) (&rx_buf);
245 BYTE buf [ETH_MAX+100]; /* add some margin */
246 rx_len = (*dev->copy_rx_buf) (buf, p->snapshot);
250 if (rx_len > 0) /* got a packet */
256 pcap.caplen = min (rx_len, p->snapshot);
260 (!fcode || bpf_filter(fcode, rx_buf, pcap.len, pcap.caplen)))
264 /* Fix-me!! Should be time of arrival. Not time of
267 gettimeofday2 (&pcap.ts, NULL);
268 (*callback) (data, &pcap, rx_buf);
271 if (dev->release_rx_buf)
272 (*dev->release_rx_buf) (rx_buf);
274 if (pcap_pkt_debug > 0)
276 if (callback == watt32_recv_hook)
277 dbug_write ("pcap_recv_hook\n");
278 else dbug_write ("pcap_read_op\n");
284 /* If not to wait for a packet or pcap_close() called from
285 * e.g. SIGINT handler, exit loop now.
287 if (p->inter_packet_wait <= 0 || (volatile int)p->fd <= 0)
290 gettimeofday2 (&now, NULL);
292 if (timercmp(&now, &expiry, >))
296 kbhit(); /* a real CPU hog */
300 (*p->wait_proc)(); /* call yield func */
303 if (rx_len < 0) /* receive error */
305 p->md.stat.ps_drop++;
306 #ifdef USE_32BIT_DRIVERS
307 if (pcap_pkt_debug > 1)
308 printk ("pkt-err %s\n", pktInfo.error);
316 pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback, u_char *data)
320 while (num <= cnt || (cnt < 0))
324 rc = pcap_read_one (p, callback, data);
329 _w32_os_yield(); /* allow SIGINT generation, yield to Win95/NT */
335 * Return network statistics
337 static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps)
339 struct net_device_stats *stats;
340 struct device *dev = p ? get_device(p->fd) : NULL;
344 strcpy (p->errbuf, "illegal pcap handle");
348 if (!dev->get_stats || (stats = (*dev->get_stats)(dev)) == NULL)
350 strcpy (p->errbuf, "device statistics not available");
356 p->md.stat.ps_recv = stats->rx_packets;
357 p->md.stat.ps_drop += stats->rx_missed_errors;
358 p->md.stat.ps_ifdrop = stats->rx_dropped + /* queue full */
359 stats->rx_errors; /* HW errors */
367 * Return detailed network/device statistics.
368 * May be called after 'dev->close' is called.
370 int pcap_stats_ex (pcap_t *p, struct pcap_stat_ex *se)
372 struct device *dev = p ? get_device (p->fd) : NULL;
374 if (!dev || !dev->get_stats)
376 strlcpy (p->errbuf, "detailed device statistics not available",
381 if (!strnicmp(dev->name,"pkt",3))
383 strlcpy (p->errbuf, "pktdrvr doesn't have detailed statistics",
387 memcpy (se, (*dev->get_stats)(dev), sizeof(*se));
392 * Simply store the filter-code for the pcap_read_dos() callback
393 * Some day the filter-code could be handed down to the active
394 * device (pkt_rx1.s or 32-bit device interrupt handler).
396 static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp)
405 * Return # of packets received in pcap_read_dos()
407 u_long pcap_mac_packets (void)
413 * Return # of packets passed through filter in pcap_read_dos()
415 u_long pcap_filter_packets (void)
417 return (filter_count);
421 * Close pcap device. Not called for offline captures.
423 static void pcap_close_dos (pcap_t *p)
425 if (p && !exc_occured)
427 if (pcap_stats(p,NULL) < 0)
428 p->md.stat.ps_drop = 0;
429 if (!get_device(p->fd))
432 handle_to_device [p->fd-1] = NULL;
443 * Return the name of the 1st network interface,
444 * or NULL if none can be found.
446 char *pcap_lookupdev (char *ebuf)
450 #ifdef USE_32BIT_DRIVERS
454 for (dev = (struct device*)dev_base; dev; dev = dev->next)
456 PCAP_ASSERT (dev->probe);
458 if ((*dev->probe)(dev))
461 probed_dev = (struct device*) dev; /* remember last probed device */
462 return (char*) dev->name;
467 strcpy (ebuf, "No driver found");
472 * Gets localnet & netmask from Watt-32.
474 int pcap_lookupnet (const char *device, bpf_u_int32 *localnet,
475 bpf_u_int32 *netmask, char *errbuf)
479 strcpy (errbuf, "pcap_open_offline() or pcap_open_live() must be "
484 *netmask = _w32_sin_mask;
485 *localnet = my_ip_addr & *netmask;
488 if (IN_CLASSA(*netmask))
489 *localnet = IN_CLASSA_NET;
490 else if (IN_CLASSB(*netmask))
491 *localnet = IN_CLASSB_NET;
492 else if (IN_CLASSC(*netmask))
493 *localnet = IN_CLASSC_NET;
496 sprintf (errbuf, "inet class for 0x%lx unknown", *netmask);
505 * Get a list of all interfaces that are present and that we probe okay.
506 * Returns -1 on error, 0 otherwise.
507 * The list, as returned through "alldevsp", may be null if no interfaces
508 * were up and could be opened.
510 int pcap_findalldevs (pcap_if_t **alldevsp, char *errbuf)
513 struct sockaddr_ll sa_ll_1, sa_ll_2;
514 struct sockaddr *addr, *netmask, *broadaddr, *dstaddr;
515 pcap_if_t *devlist = NULL;
517 size_t addr_size = sizeof(struct sockaddr_ll);
519 for (dev = (struct device*)dev_base; dev; dev = dev->next)
521 PCAP_ASSERT (dev->probe);
523 if (!(*dev->probe)(dev))
526 PCAP_ASSERT (dev->close); /* set by probe routine */
530 memset (&sa_ll_1, 0, sizeof(sa_ll_1));
531 memset (&sa_ll_2, 0, sizeof(sa_ll_2));
532 sa_ll_1.sll_family = AF_PACKET;
533 sa_ll_2.sll_family = AF_PACKET;
535 addr = (struct sockaddr*) &sa_ll_1;
536 netmask = (struct sockaddr*) &sa_ll_1;
537 dstaddr = (struct sockaddr*) &sa_ll_1;
538 broadaddr = (struct sockaddr*) &sa_ll_2;
539 memset (&sa_ll_2.sll_addr, 0xFF, sizeof(sa_ll_2.sll_addr));
541 if (pcap_add_if(&devlist, dev->name, dev->flags,
542 dev->long_name, errbuf) < 0)
547 if (add_addr_to_iflist(&devlist,dev->name, dev->flags, addr, addr_size,
548 netmask, addr_size, broadaddr, addr_size,
549 dstaddr, addr_size, errbuf) < 0)
556 if (devlist && ret < 0)
558 pcap_freealldevs (devlist);
563 strcpy (errbuf, "No drivers found");
570 * pcap_assert() is mainly used for debugging
572 void pcap_assert (const char *what, const char *file, unsigned line)
575 fprintf (stderr, "%s (%u): Assertion \"%s\" failed\n",
582 * For pcap_offline_read(): wait and yield between printing packets
583 * to simulate the pace packets where actually recorded.
585 void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait)
589 p->wait_proc = yield;
590 p->inter_packet_wait = wait;
595 * Initialise a named network device.
597 static struct device *
598 open_driver (const char *dev_name, char *ebuf, int promisc)
602 for (dev = (struct device*)dev_base; dev; dev = dev->next)
604 PCAP_ASSERT (dev->name);
606 if (strcmp (dev_name,dev->name))
609 if (!probed_dev) /* user didn't call pcap_lookupdev() first */
611 PCAP_ASSERT (dev->probe);
613 if (!(*dev->probe)(dev)) /* call the xx_probe() function */
615 sprintf (ebuf, "failed to detect device `%s'", dev_name);
618 probed_dev = dev; /* device is probed okay and may be used */
620 else if (dev != probed_dev)
627 /* Select what traffic to receive
630 dev->flags |= (IFF_ALLMULTI | IFF_PROMISC);
631 else dev->flags &= ~(IFF_ALLMULTI | IFF_PROMISC);
633 PCAP_ASSERT (dev->open);
635 if (!(*dev->open)(dev))
637 sprintf (ebuf, "failed to activate device `%s'", dev_name);
638 if (pktInfo.error && !strncmp(dev->name,"pkt",3))
641 strcat (ebuf, pktInfo.error);
646 /* Some devices need this to operate in promiscous mode
648 if (promisc && dev->set_multicast_list)
649 (*dev->set_multicast_list) (dev);
651 active_dev = dev; /* remember our active device */
655 /* 'dev_name' not matched in 'dev_base' list.
659 sprintf (ebuf, "device `%s' not supported", dev_name);
666 sprintf (ebuf, "device `%s' not probed", dev_name);
673 * Deinitialise MAC driver.
674 * Set receive mode back to default mode.
676 static void close_driver (void)
678 /* !!todo: loop over all 'handle_to_device[]' ? */
679 struct device *dev = active_dev;
681 if (dev && dev->close)
689 #ifdef USE_32BIT_DRIVERS
702 static void setup_signals (void (*handler)(int))
704 signal (SIGSEGV,handler);
705 signal (SIGILL, handler);
706 signal (SIGFPE, handler);
709 static void exc_handler (int sig)
711 #ifdef USE_32BIT_DRIVERS
712 if (active_dev->irq > 0) /* excludes IRQ 0 */
714 disable_irq (active_dev->irq);
715 irq_eoi_cmd (active_dev->irq);
723 fputs ("Catching SIGSEGV.\n", stderr);
726 fputs ("Catching SIGILL.\n", stderr);
730 fputs ("Catching SIGFPE.\n", stderr);
733 fprintf (stderr, "Catching signal %d.\n", sig);
736 pcap_close_dos (NULL);
738 #endif /* __DJGPP__ */
742 * Open the pcap device for the first client calling pcap_open_live()
744 static int first_init (const char *name, char *ebuf, int promisc)
748 #ifdef USE_32BIT_DRIVERS
749 rx_pool = k_calloc (RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE);
752 strcpy (ebuf, "Not enough memory (Rx pool)");
758 setup_signals (exc_handler);
761 #ifdef USE_32BIT_DRIVERS
765 dev = open_driver (name, ebuf, promisc);
768 #ifdef USE_32BIT_DRIVERS
774 setup_signals (SIG_DFL);
779 #ifdef USE_32BIT_DRIVERS
781 * If driver is NOT a 16-bit "pkt/ndis" driver (having a 'copy_rx_buf'
782 * set in it's probe handler), initialise near-memory ring-buffer for
785 if (dev->copy_rx_buf == NULL)
787 dev->get_rx_buf = get_rxbuf;
788 dev->peek_rx_buf = peek_rxbuf;
789 dev->release_rx_buf = release_rxbuf;
790 pktq_init (&dev->queue, RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE, rx_pool);
796 #ifdef USE_32BIT_DRIVERS
797 static void init_32bit (void)
799 static int init_pci = 0;
802 _printk_init (64*1024, NULL); /* calls atexit(printk_exit) */
805 (void)pci_init(); /* init BIOS32+PCI interface */
812 * Hook functions for using Watt-32 together with pcap
814 static char rxbuf [ETH_MAX+100]; /* rx-buffer with some margin */
816 static pcap_t pcap_save;
818 static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap,
821 /* Fix me: assumes Ethernet II only */
822 struct ether_header *ep = (struct ether_header*) buf;
824 memcpy (rxbuf, buf, pcap->caplen);
825 etype = ep->ether_type;
829 #if (WATTCP_VER >= 0x0224)
831 * This function is used by Watt-32 to poll for a packet.
832 * i.e. it's set to bypass _eth_arrived()
834 static void *pcap_recv_hook (WORD *type)
836 int len = pcap_read_dos (&pcap_save, 1, watt32_recv_hook, NULL);
842 return (void*) &rxbuf;
846 * This function is called by Watt-32 (via _eth_xmit_hook).
847 * If dbug_init() was called, we should trace packets sent.
849 static int pcap_xmit_hook (const void *buf, unsigned len)
853 if (pcap_pkt_debug > 0)
854 dbug_write ("pcap_xmit_hook: ");
856 if (active_dev && active_dev->xmit)
857 if ((*active_dev->xmit) (active_dev, buf, len) > 0)
860 if (pcap_pkt_debug > 0)
861 dbug_write (rc ? "ok\n" : "fail\n");
866 static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len)
868 struct device *dev = p ? get_device(p->fd) : NULL;
870 if (!dev || !dev->xmit)
872 return (*dev->xmit) (dev, buf, len);
876 * This function is called by Watt-32 in tcp_post_init().
877 * We should prevent Watt-32 from using BOOTP/DHCP/RARP etc.
879 static void (*prev_post_hook) (void);
881 static void pcap_init_hook (void)
883 _w32__bootp_on = _w32__dhcp_on = _w32__rarp_on = 0;
884 _w32__do_mask_req = 0;
885 _w32_dynamic_host = 0;
891 * Supress PRINT message from Watt-32's sock_init()
893 static void null_print (void) {}
896 * To use features of Watt-32 (netdb functions and socket etc.)
897 * we must call sock_init(). But we set various hooks to prevent
898 * using normal PKTDRVR functions in pcpkt.c. This should hopefully
899 * make Watt-32 and pcap co-operate.
901 static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf)
904 int rc, MTU, has_ip_addr;
905 int using_pktdrv = 1;
907 /* If user called sock_init() first, we need to reinit in
908 * order to open debug/trace-file properly
913 env = getenv ("PCAP_DEBUG");
914 if (env && atoi(env) > 0 &&
915 pcap_pkt_debug < 0) /* if not already set */
918 pcap_pkt_debug = atoi (env);
921 _watt_do_exit = 0; /* prevent sock_init() calling exit() */
922 prev_post_hook = _w32_usr_post_init;
923 _w32_usr_post_init = pcap_init_hook;
924 _w32_print_hook = null_print;
926 if (dev_name && strncmp(dev_name,"pkt",3))
927 using_pktdrv = FALSE;
930 has_ip_addr = (rc != 8); /* IP-address assignment failed */
932 /* if pcap is using a 32-bit driver w/o a pktdrvr loaded, we
933 * just pretend Watt-32 is initialised okay.
935 * !! fix-me: The Watt-32 config isn't done if no pktdrvr
936 * was found. In that case my_ip_addr + sin_mask
937 * have default values. Should be taken from another
938 * ini-file/environment in any case (ref. tcpdump.ini)
942 if (!using_pktdrv || !has_ip_addr) /* for now .... */
944 static const char myip[] = "192.168.0.1";
945 static const char mask[] = "255.255.255.0";
947 printf ("Just guessing, using IP %s and netmask %s\n", myip, mask);
948 my_ip_addr = aton (myip);
949 _w32_sin_mask = aton (mask);
951 else if (rc && using_pktdrv)
953 sprintf (err_buf, "sock_init() failed, code %d", rc);
957 /* Set recv-hook for peeking in _eth_arrived().
959 #if (WATTCP_VER >= 0x0224)
960 _eth_recv_hook = pcap_recv_hook;
961 _eth_xmit_hook = pcap_xmit_hook;
964 /* Free the pkt-drvr handle allocated in pkt_init().
965 * The above hooks should thus use the handle reopened in open_driver()
970 /* _eth_is_init = 1; */ /* hack to get Rx/Tx-hooks in Watt-32 working */
973 memcpy (&pcap_save, pcap, sizeof(pcap_save));
975 pcap_save.fcode.bf_insns = NULL;
976 pcap_save.linktype = _eth_get_hwtype (NULL, NULL);
977 pcap_save.snapshot = MTU > 0 ? MTU : ETH_MAX; /* assume 1514 */
980 /* prevent use of resolve() and resolve_ip()
987 int EISA_bus = 0; /* Where is natural place for this? */
990 * Application config hooks to set various driver parameters.
993 static struct config_table debug_tab[] = {
994 { "PKT.DEBUG", ARG_ATOI, &pcap_pkt_debug },
995 { "PKT.VECTOR", ARG_ATOX_W, NULL },
996 { "NDIS.DEBUG", ARG_ATOI, NULL },
997 #ifdef USE_32BIT_DRIVERS
998 { "3C503.DEBUG", ARG_ATOI, &ei_debug },
999 { "3C503.IO_BASE", ARG_ATOX_W, &el2_dev.base_addr },
1000 { "3C503.MEMORY", ARG_ATOX_W, &el2_dev.mem_start },
1001 { "3C503.IRQ", ARG_ATOI, &el2_dev.irq },
1002 { "3C505.DEBUG", ARG_ATOI, NULL },
1003 { "3C505.BASE", ARG_ATOX_W, NULL },
1004 { "3C507.DEBUG", ARG_ATOI, NULL },
1005 { "3C509.DEBUG", ARG_ATOI, &el3_debug },
1006 { "3C509.ILOOP", ARG_ATOI, &el3_max_loop },
1007 { "3C529.DEBUG", ARG_ATOI, NULL },
1008 { "3C575.DEBUG", ARG_ATOI, &debug_3c575 },
1009 { "3C59X.DEBUG", ARG_ATOI, &vortex_debug },
1010 { "3C59X.IFACE0", ARG_ATOI, &vortex_options[0] },
1011 { "3C59X.IFACE1", ARG_ATOI, &vortex_options[1] },
1012 { "3C59X.IFACE2", ARG_ATOI, &vortex_options[2] },
1013 { "3C59X.IFACE3", ARG_ATOI, &vortex_options[3] },
1014 { "3C90X.DEBUG", ARG_ATOX_W, &tc90xbc_debug },
1015 { "ACCT.DEBUG", ARG_ATOI, ðpk_debug },
1016 { "CS89.DEBUG", ARG_ATOI, &cs89_debug },
1017 { "RTL8139.DEBUG", ARG_ATOI, &rtl8139_debug },
1018 /* { "RTL8139.FDUPLEX", ARG_ATOI, &rtl8139_options }, */
1019 { "SMC.DEBUG", ARG_ATOI, &ei_debug },
1020 /* { "E100.DEBUG", ARG_ATOI, &e100_debug }, */
1021 { "PCI.DEBUG", ARG_ATOI, &pci_debug },
1022 { "BIOS32.DEBUG", ARG_ATOI, &bios32_debug },
1023 { "IRQ.DEBUG", ARG_ATOI, &irq_debug },
1024 { "TIMER.IRQ", ARG_ATOI, &timer_irq },
1030 * pcap_config_hook() is an extension to application's config
1031 * handling. Uses Watt-32's config-table function.
1033 int pcap_config_hook (const char *name, const char *value)
1035 return parse_config_table (debug_tab, NULL, name, value);
1039 * Linked list of supported devices
1041 struct device *active_dev = NULL; /* the device we have opened */
1042 struct device *probed_dev = NULL; /* the device we have probed */
1043 const struct device *dev_base = &pkt_dev; /* list of network devices */
1046 * PKTDRVR device functions
1048 int pcap_pkt_debug = -1;
1050 static void pkt_close (struct device *dev)
1052 BOOL okay = PktExitDriver();
1054 if (pcap_pkt_debug > 1)
1055 fprintf (stderr, "pkt_close(): %d\n", okay);
1062 static int pkt_open (struct device *dev)
1066 if (dev->flags & IFF_PROMISC)
1067 mode = PDRX_ALL_PACKETS;
1068 else mode = PDRX_BROADCAST;
1070 if (!PktInitDriver(mode))
1073 PktResetStatistics (pktInfo.handle);
1074 PktQueueBusy (FALSE);
1078 static int pkt_xmit (struct device *dev, const void *buf, int len)
1080 struct net_device_stats *stats = (struct net_device_stats*) dev->priv;
1082 if (pcap_pkt_debug > 0)
1083 dbug_write ("pcap_xmit\n");
1085 if (!PktTransmit(buf,len))
1093 static void *pkt_stats (struct device *dev)
1095 struct net_device_stats *stats = (struct net_device_stats*) dev->priv;
1097 if (!stats || !PktSessStatistics(pktInfo.handle))
1100 stats->rx_packets = pktStat.inPackets;
1101 stats->rx_errors = pktStat.lost;
1102 stats->rx_missed_errors = PktRxDropped();
1106 static int pkt_probe (struct device *dev)
1108 if (!PktSearchDriver())
1111 dev->open = pkt_open;
1112 dev->xmit = pkt_xmit;
1113 dev->close = pkt_close;
1114 dev->get_stats = pkt_stats;
1115 dev->copy_rx_buf = PktReceive; /* farmem peek and copy routine */
1116 dev->get_rx_buf = NULL;
1117 dev->peek_rx_buf = NULL;
1118 dev->release_rx_buf = NULL;
1119 dev->priv = calloc (sizeof(struct net_device_stats), 1);
1126 * NDIS device functions
1128 static void ndis_close (struct device *dev)
1136 static int ndis_open (struct device *dev)
1138 int promis = (dev->flags & IFF_PROMISC);
1141 if (!NdisInit(promis))
1150 static void *ndis_stats (struct device *dev)
1152 static struct net_device_stats stats;
1159 static int ndis_probe (struct device *dev)
1166 dev->open = ndis_open;
1168 dev->close = ndis_close;
1169 dev->get_stats = ndis_stats;
1170 dev->copy_rx_buf = NULL; /* to-do */
1171 dev->get_rx_buf = NULL; /* upcall is from rmode driver */
1172 dev->peek_rx_buf = NULL;
1173 dev->release_rx_buf = NULL;
1178 * Search & probe for supported 32-bit (pmode) pcap devices
1180 #if defined(USE_32BIT_DRIVERS)
1182 struct device el2_dev LOCKED_VAR = {
1191 struct device el3_dev LOCKED_VAR = {
1200 struct device tc515_dev LOCKED_VAR = {
1209 struct device tc59_dev LOCKED_VAR = {
1218 struct device tc90xbc_dev LOCKED_VAR = {
1227 struct device wd_dev LOCKED_VAR = {
1236 struct device ne_dev LOCKED_VAR = {
1245 struct device acct_dev LOCKED_VAR = {
1247 "Accton EtherPocket",
1254 struct device cs89_dev LOCKED_VAR = {
1256 "Crystal Semiconductor",
1263 struct device rtl8139_dev LOCKED_VAR = {
1269 rtl8139_probe /* dev->probe routine */
1273 * Dequeue routine is called by polling.
1274 * NOTE: the queue-element is not copied, only a pointer is
1275 * returned at '*buf'
1277 int peek_rxbuf (BYTE **buf)
1279 struct rx_elem *tail, *head;
1281 PCAP_ASSERT (pktq_check (&active_dev->queue));
1284 tail = pktq_out_elem (&active_dev->queue);
1285 head = pktq_in_elem (&active_dev->queue);
1290 PCAP_ASSERT (tail->size < active_dev->queue.elem_size-4-2);
1292 *buf = &tail->data[0];
1293 return (tail->size);
1300 * Release buffer we peeked at above.
1302 int release_rxbuf (BYTE *buf)
1305 struct rx_elem *tail = pktq_out_elem (&active_dev->queue);
1307 PCAP_ASSERT (&tail->data[0] == buf);
1311 pktq_inc_out (&active_dev->queue);
1316 * get_rxbuf() routine (in locked code) is called from IRQ handler
1317 * to request a buffer. Interrupts are disabled and we have a 32kB stack.
1319 BYTE *get_rxbuf (int len)
1323 if (len < ETH_MIN || len > ETH_MAX)
1326 idx = pktq_in_index (&active_dev->queue);
1330 static int fan_idx LOCKED_VAR = 0;
1331 writew ("-\\|/"[fan_idx++] | (15 << 8), /* white on black colour */
1332 0xB8000 + 2*79); /* upper-right corner, 80-col colour screen */
1335 /* writew (idx + '0' + 0x0F00, 0xB8000 + 2*78); */
1338 if (idx != active_dev->queue.out_index)
1340 struct rx_elem *head = pktq_in_elem (&active_dev->queue);
1343 active_dev->queue.in_index = idx;
1344 return (&head->data[0]);
1347 /* !!to-do: drop 25% of the oldest element
1349 pktq_clear (&active_dev->queue);
1354 * Simple ring-buffer queue handler for reception of packets
1355 * from network driver.
1357 #define PKTQ_MARKER 0xDEADBEEF
1359 static int pktq_check (struct rx_ringbuf *q)
1366 if (!q || !q->num_elem || !q->buf_start)
1372 for (i = 0; i < q->num_elem; i++)
1374 buf += q->elem_size;
1375 if (*(DWORD*)(buf - sizeof(DWORD)) != PKTQ_MARKER)
1382 static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool)
1386 q->elem_size = size;
1388 q->buf_start = pool;
1392 PCAP_ASSERT (size >= sizeof(struct rx_elem) + sizeof(DWORD));
1396 for (i = 0; i < num; i++)
1399 struct rx_elem *elem = (struct rx_elem*) pool;
1401 /* assert dword aligned elements
1403 PCAP_ASSERT (((unsigned)(&elem->data[0]) & 3) == 0);
1406 *(DWORD*) (pool - sizeof(DWORD)) = PKTQ_MARKER;
1412 * Increment the queue 'out_index' (tail).
1415 static int pktq_inc_out (struct rx_ringbuf *q)
1418 if (q->out_index >= q->num_elem)
1420 return (q->out_index);
1424 * Return the queue's next 'in_index' (head).
1427 static int pktq_in_index (struct rx_ringbuf *q)
1429 volatile int index = q->in_index + 1;
1431 if (index >= q->num_elem)
1437 * Return the queue's head-buffer.
1439 static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q)
1441 return (struct rx_elem*) (q->buf_start + (q->elem_size * q->in_index));
1445 * Return the queue's tail-buffer.
1447 static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q)
1449 return (struct rx_elem*) (q->buf_start + (q->elem_size * q->out_index));
1453 * Clear the queue ring-buffer by setting head=tail.
1455 static void pktq_clear (struct rx_ringbuf *q)
1457 q->in_index = q->out_index;
1461 * Symbols that must be linkable for "gcc -O0"
1469 #include "msdos/pm_drvr/ioport.h"
1470 #include "msdos/pm_drvr/dma.h"
1472 #endif /* USE_32BIT_DRIVERS */