2 * This file is part of DOS-libpcap
3 * Ported to DOS/DOSX by G. Vanem <gvanem@broadpark.no>
5 * pcap-dos.c: Interface to PKTDRVR, NDIS2 and 32-bit pmode
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"
40 #include "msdos/pktdrvr.h"
43 #include "msdos/ndis2.h"
46 #include <arpa/inet.h>
48 #include <net/if_arp.h>
49 #include <net/if_ether.h>
50 #include <net/if_packe.h>
53 #if defined(USE_32BIT_DRIVERS)
54 #define FLUSHK() do { _printk_safe = 1; _printk_flush(); } while (0)
55 #define NDIS_NEXT_DEV &rtl8139_dev
57 static char *rx_pool = NULL;
58 static void init_32bit (void);
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;
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);
70 #define FLUSHK() ((void)0)
71 #define NDIS_NEXT_DEV NULL
75 * Internal variables/functions in Watt-32
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)();
86 extern void dbug_write (const char *); /* Watt-32 lib, pcdbug.c */
87 extern int pkt_get_mtu (void);
89 static int ref_count = 0;
91 static u_long mac_count = 0;
92 static u_long filter_count = 0;
94 static volatile BOOL exc_occured = 0;
96 static struct device *handle_to_device [20];
98 static int pcap_activate_dos (pcap_t *p);
99 static int pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback,
101 static void pcap_cleanup_dos (pcap_t *p);
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);
106 static int ndis_probe (struct device *dev);
107 static int pkt_probe (struct device *dev);
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);
113 static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap,
117 * These are the device we always support
119 static struct device ndis_dev = {
124 NDIS_NEXT_DEV, /* NULL or a 32-bit device */
128 static struct device pkt_dev = {
137 static struct device *get_device (int fd)
139 if (fd <= 0 || fd >= sizeof(handle_to_device)/sizeof(handle_to_device[0]))
141 return handle_to_device [fd-1];
145 * Private data for capturing on MS-DOS.
148 void (*wait_proc)(void); /* call proc while waiting */
149 struct pcap_stat stat;
152 pcap_t *pcap_create_interface (const char *device, char *ebuf)
156 p = pcap_create_common(device, ebuf, sizeof (struct pcap_dos));
160 p->activate_op = pcap_activate_dos;
165 * Open MAC-driver with name 'device_name' for live capture of
168 static int pcap_activate_dos (pcap_t *pcap)
170 struct pcap_dos *pcapd = pcap->priv;
172 if (pcap->opt.rfmon) {
174 * No monitor mode on DOS.
176 return (PCAP_ERROR_RFMON_NOTSUP);
179 if (pcap->snapshot < ETH_MIN+8)
180 pcap->snapshot = ETH_MIN+8;
182 if (pcap->snapshot > ETH_MAX) /* silently accept and truncate large MTUs */
183 pcap->snapshot = ETH_MAX;
185 pcap->linktype = DLT_EN10MB; /* !! */
186 pcap->cleanup_op = pcap_cleanup_dos;
187 pcap->read_op = pcap_read_dos;
188 pcap->stats_op = pcap_stats_dos;
189 pcap->inject_op = pcap_sendpacket_dos;
190 pcap->setfilter_op = pcap_setfilter_dos;
191 pcap->setdirection_op = NULL; /* Not implemented.*/
192 pcap->fd = ++ref_count;
194 if (pcap->fd == 1) /* first time we're called */
196 if (!init_watt32(pcap, pcap->opt.source, pcap->errbuf) ||
197 !first_init(pcap->opt.source, pcap->errbuf, pcap->opt.promisc))
201 atexit (close_driver);
203 else if (stricmp(active_dev->name,pcap->opt.source))
205 snprintf (pcap->errbuf, PCAP_ERRBUF_SIZE,
206 "Cannot use different devices simultaneously "
207 "(`%s' vs. `%s')", active_dev->name, pcap->opt.source);
210 handle_to_device [pcap->fd-1] = active_dev;
215 * Poll the receiver queue and call the pcap callback-handler
219 pcap_read_one (pcap_t *p, pcap_handler callback, u_char *data)
221 struct pcap_dos *pd = p->priv;
222 struct pcap_pkthdr pcap;
223 struct timeval now, expiry = { 0,0 };
227 if (p->opt.timeout > 0)
229 gettimeofday2 (&now, NULL);
230 expiry.tv_usec = now.tv_usec + 1000UL * p->opt.timeout;
231 expiry.tv_sec = now.tv_sec;
232 while (expiry.tv_usec >= 1000000L)
234 expiry.tv_usec -= 1000000L;
241 volatile struct device *dev; /* might be reset by sig_handler */
243 dev = get_device (p->fd);
247 PCAP_ASSERT (dev->copy_rx_buf || dev->peek_rx_buf);
250 /* If driver has a zero-copy receive facility, peek at the queue,
251 * filter it, do the callback and release the buffer.
253 if (dev->peek_rx_buf)
255 PCAP_ASSERT (dev->release_rx_buf);
256 rx_len = (*dev->peek_rx_buf) (&rx_buf);
260 BYTE buf [ETH_MAX+100]; /* add some margin */
261 rx_len = (*dev->copy_rx_buf) (buf, p->snapshot);
265 if (rx_len > 0) /* got a packet */
271 pcap.caplen = min (rx_len, p->snapshot);
275 (!p->fcode.bf_insns || bpf_filter(p->fcode.bf_insns, rx_buf, pcap.len, pcap.caplen)))
279 /* Fix-me!! Should be time of arrival. Not time of
282 gettimeofday2 (&pcap.ts, NULL);
283 (*callback) (data, &pcap, rx_buf);
286 if (dev->release_rx_buf)
287 (*dev->release_rx_buf) (rx_buf);
289 if (pcap_pkt_debug > 0)
291 if (callback == watt32_recv_hook)
292 dbug_write ("pcap_recv_hook\n");
293 else dbug_write ("pcap_read_op\n");
299 /* If not to wait for a packet or pcap_cleanup_dos() called from
300 * e.g. SIGINT handler, exit loop now.
302 if (p->opt.timeout <= 0 || (volatile int)p->fd <= 0)
305 gettimeofday2 (&now, NULL);
307 if (timercmp(&now, &expiry, >))
311 kbhit(); /* a real CPU hog */
315 (*p->wait_proc)(); /* call yield func */
318 if (rx_len < 0) /* receive error */
321 #ifdef USE_32BIT_DRIVERS
322 if (pcap_pkt_debug > 1)
323 printk ("pkt-err %s\n", pktInfo.error);
331 pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback, u_char *data)
333 struct pcap_dos *pd = p->priv;
336 while (num <= cnt || PACKET_COUNT_IS_UNLIMITED(cnt))
340 rc = pcap_read_one (p, callback, data);
345 _w32_os_yield(); /* allow SIGINT generation, yield to Win95/NT */
351 * Return network statistics
353 static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps)
355 struct net_device_stats *stats;
357 struct device *dev = p ? get_device(p->fd) : NULL;
361 strcpy (p->errbuf, "illegal pcap handle");
365 if (!dev->get_stats || (stats = (*dev->get_stats)(dev)) == NULL)
367 strcpy (p->errbuf, "device statistics not available");
374 pd->stat.ps_recv = stats->rx_packets;
375 pd->stat.ps_drop += stats->rx_missed_errors;
376 pd->stat.ps_ifdrop = stats->rx_dropped + /* queue full */
377 stats->rx_errors; /* HW errors */
385 * Return detailed network/device statistics.
386 * May be called after 'dev->close' is called.
388 int pcap_stats_ex (pcap_t *p, struct pcap_stat_ex *se)
390 struct device *dev = p ? get_device (p->fd) : NULL;
392 if (!dev || !dev->get_stats)
394 strlcpy (p->errbuf, "detailed device statistics not available",
399 if (!strnicmp(dev->name,"pkt",3))
401 strlcpy (p->errbuf, "pktdrvr doesn't have detailed statistics",
405 memcpy (se, (*dev->get_stats)(dev), sizeof(*se));
410 * Simply store the filter-code for the pcap_read_dos() callback
411 * Some day the filter-code could be handed down to the active
412 * device (pkt_rx1.s or 32-bit device interrupt handler).
414 static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp)
423 * Return # of packets received in pcap_read_dos()
425 u_long pcap_mac_packets (void)
431 * Return # of packets passed through filter in pcap_read_dos()
433 u_long pcap_filter_packets (void)
435 return (filter_count);
439 * Close pcap device. Not called for offline captures.
441 static void pcap_cleanup_dos (pcap_t *p)
445 if (p && !exc_occured)
448 if (pcap_stats(p,NULL) < 0)
449 pd->stat.ps_drop = 0;
450 if (!get_device(p->fd))
453 handle_to_device [p->fd-1] = NULL;
464 * Return the name of the 1st network interface,
465 * or NULL if none can be found.
467 char *pcap_lookupdev (char *ebuf)
471 #ifdef USE_32BIT_DRIVERS
475 for (dev = (struct device*)dev_base; dev; dev = dev->next)
477 PCAP_ASSERT (dev->probe);
479 if ((*dev->probe)(dev))
482 probed_dev = (struct device*) dev; /* remember last probed device */
483 return (char*) dev->name;
488 strcpy (ebuf, "No driver found");
493 * Gets localnet & netmask from Watt-32.
495 int pcap_lookupnet (const char *device, bpf_u_int32 *localnet,
496 bpf_u_int32 *netmask, char *errbuf)
500 strcpy (errbuf, "pcap_open_offline() or pcap_activate() must be "
505 *netmask = _w32_sin_mask;
506 *localnet = my_ip_addr & *netmask;
509 if (IN_CLASSA(*netmask))
510 *localnet = IN_CLASSA_NET;
511 else if (IN_CLASSB(*netmask))
512 *localnet = IN_CLASSB_NET;
513 else if (IN_CLASSC(*netmask))
514 *localnet = IN_CLASSC_NET;
517 sprintf (errbuf, "inet class for 0x%lx unknown", *netmask);
526 * Get a list of all interfaces that are present and that we probe okay.
527 * Returns -1 on error, 0 otherwise.
528 * The list, as returned through "alldevsp", may be null if no interfaces
529 * were up and could be opened.
531 int pcap_findalldevs (pcap_if_t **alldevsp, char *errbuf)
534 struct sockaddr_ll sa_ll_1, sa_ll_2;
535 struct sockaddr *addr, *netmask, *broadaddr, *dstaddr;
536 pcap_if_t *devlist = NULL;
538 size_t addr_size = sizeof(struct sockaddr_ll);
540 for (dev = (struct device*)dev_base; dev; dev = dev->next)
542 PCAP_ASSERT (dev->probe);
544 if (!(*dev->probe)(dev))
547 PCAP_ASSERT (dev->close); /* set by probe routine */
551 memset (&sa_ll_1, 0, sizeof(sa_ll_1));
552 memset (&sa_ll_2, 0, sizeof(sa_ll_2));
553 sa_ll_1.sll_family = AF_PACKET;
554 sa_ll_2.sll_family = AF_PACKET;
556 addr = (struct sockaddr*) &sa_ll_1;
557 netmask = (struct sockaddr*) &sa_ll_1;
558 dstaddr = (struct sockaddr*) &sa_ll_1;
559 broadaddr = (struct sockaddr*) &sa_ll_2;
560 memset (&sa_ll_2.sll_addr, 0xFF, sizeof(sa_ll_2.sll_addr));
562 if (pcap_add_if(&devlist, dev->name, dev->flags,
563 dev->long_name, errbuf) < 0)
568 if (add_addr_to_iflist(&devlist,dev->name, dev->flags, addr, addr_size,
569 netmask, addr_size, broadaddr, addr_size,
570 dstaddr, addr_size, errbuf) < 0)
577 if (devlist && ret < 0)
579 pcap_freealldevs (devlist);
584 strcpy (errbuf, "No drivers found");
591 * pcap_assert() is mainly used for debugging
593 void pcap_assert (const char *what, const char *file, unsigned line)
596 fprintf (stderr, "%s (%u): Assertion \"%s\" failed\n",
603 * For pcap_offline_read(): wait and yield between printing packets
604 * to simulate the pace packets where actually recorded.
606 void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait)
612 pd->wait_proc = yield;
613 p->opt.timeout = wait;
618 * Initialise a named network device.
620 static struct device *
621 open_driver (const char *dev_name, char *ebuf, int promisc)
625 for (dev = (struct device*)dev_base; dev; dev = dev->next)
627 PCAP_ASSERT (dev->name);
629 if (strcmp (dev_name,dev->name))
632 if (!probed_dev) /* user didn't call pcap_lookupdev() first */
634 PCAP_ASSERT (dev->probe);
636 if (!(*dev->probe)(dev)) /* call the xx_probe() function */
638 sprintf (ebuf, "failed to detect device `%s'", dev_name);
641 probed_dev = dev; /* device is probed okay and may be used */
643 else if (dev != probed_dev)
650 /* Select what traffic to receive
653 dev->flags |= (IFF_ALLMULTI | IFF_PROMISC);
654 else dev->flags &= ~(IFF_ALLMULTI | IFF_PROMISC);
656 PCAP_ASSERT (dev->open);
658 if (!(*dev->open)(dev))
660 sprintf (ebuf, "failed to activate device `%s'", dev_name);
661 if (pktInfo.error && !strncmp(dev->name,"pkt",3))
664 strcat (ebuf, pktInfo.error);
669 /* Some devices need this to operate in promiscous mode
671 if (promisc && dev->set_multicast_list)
672 (*dev->set_multicast_list) (dev);
674 active_dev = dev; /* remember our active device */
678 /* 'dev_name' not matched in 'dev_base' list.
682 sprintf (ebuf, "device `%s' not supported", dev_name);
689 sprintf (ebuf, "device `%s' not probed", dev_name);
696 * Deinitialise MAC driver.
697 * Set receive mode back to default mode.
699 static void close_driver (void)
701 /* !!todo: loop over all 'handle_to_device[]' ? */
702 struct device *dev = active_dev;
704 if (dev && dev->close)
712 #ifdef USE_32BIT_DRIVERS
725 static void setup_signals (void (*handler)(int))
727 signal (SIGSEGV,handler);
728 signal (SIGILL, handler);
729 signal (SIGFPE, handler);
732 static void exc_handler (int sig)
734 #ifdef USE_32BIT_DRIVERS
735 if (active_dev->irq > 0) /* excludes IRQ 0 */
737 disable_irq (active_dev->irq);
738 irq_eoi_cmd (active_dev->irq);
746 fputs ("Catching SIGSEGV.\n", stderr);
749 fputs ("Catching SIGILL.\n", stderr);
753 fputs ("Catching SIGFPE.\n", stderr);
756 fprintf (stderr, "Catching signal %d.\n", sig);
759 pcap_cleanup_dos (NULL);
761 #endif /* __DJGPP__ */
765 * Open the pcap device for the first client calling pcap_activate()
767 static int first_init (const char *name, char *ebuf, int promisc)
771 #ifdef USE_32BIT_DRIVERS
772 rx_pool = k_calloc (RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE);
775 strcpy (ebuf, "Not enough memory (Rx pool)");
781 setup_signals (exc_handler);
784 #ifdef USE_32BIT_DRIVERS
788 dev = open_driver (name, ebuf, promisc);
791 #ifdef USE_32BIT_DRIVERS
797 setup_signals (SIG_DFL);
802 #ifdef USE_32BIT_DRIVERS
804 * If driver is NOT a 16-bit "pkt/ndis" driver (having a 'copy_rx_buf'
805 * set in it's probe handler), initialise near-memory ring-buffer for
808 if (dev->copy_rx_buf == NULL)
810 dev->get_rx_buf = get_rxbuf;
811 dev->peek_rx_buf = peek_rxbuf;
812 dev->release_rx_buf = release_rxbuf;
813 pktq_init (&dev->queue, RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE, rx_pool);
819 #ifdef USE_32BIT_DRIVERS
820 static void init_32bit (void)
822 static int init_pci = 0;
825 _printk_init (64*1024, NULL); /* calls atexit(printk_exit) */
828 (void)pci_init(); /* init BIOS32+PCI interface */
835 * Hook functions for using Watt-32 together with pcap
837 static char rxbuf [ETH_MAX+100]; /* rx-buffer with some margin */
839 static pcap_t pcap_save;
841 static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap,
844 /* Fix me: assumes Ethernet II only */
845 struct ether_header *ep = (struct ether_header*) buf;
847 memcpy (rxbuf, buf, pcap->caplen);
848 etype = ep->ether_type;
852 #if (WATTCP_VER >= 0x0224)
854 * This function is used by Watt-32 to poll for a packet.
855 * i.e. it's set to bypass _eth_arrived()
857 static void *pcap_recv_hook (WORD *type)
859 int len = pcap_read_dos (&pcap_save, 1, watt32_recv_hook, NULL);
865 return (void*) &rxbuf;
869 * This function is called by Watt-32 (via _eth_xmit_hook).
870 * If dbug_init() was called, we should trace packets sent.
872 static int pcap_xmit_hook (const void *buf, unsigned len)
876 if (pcap_pkt_debug > 0)
877 dbug_write ("pcap_xmit_hook: ");
879 if (active_dev && active_dev->xmit)
880 if ((*active_dev->xmit) (active_dev, buf, len) > 0)
883 if (pcap_pkt_debug > 0)
884 dbug_write (rc ? "ok\n" : "fail\n");
889 static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len)
891 struct device *dev = p ? get_device(p->fd) : NULL;
893 if (!dev || !dev->xmit)
895 return (*dev->xmit) (dev, buf, len);
899 * This function is called by Watt-32 in tcp_post_init().
900 * We should prevent Watt-32 from using BOOTP/DHCP/RARP etc.
902 static void (*prev_post_hook) (void);
904 static void pcap_init_hook (void)
906 _w32__bootp_on = _w32__dhcp_on = _w32__rarp_on = 0;
907 _w32__do_mask_req = 0;
908 _w32_dynamic_host = 0;
914 * Supress PRINT message from Watt-32's sock_init()
916 static void null_print (void) {}
919 * To use features of Watt-32 (netdb functions and socket etc.)
920 * we must call sock_init(). But we set various hooks to prevent
921 * using normal PKTDRVR functions in pcpkt.c. This should hopefully
922 * make Watt-32 and pcap co-operate.
924 static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf)
927 int rc, MTU, has_ip_addr;
928 int using_pktdrv = 1;
930 /* If user called sock_init() first, we need to reinit in
931 * order to open debug/trace-file properly
936 env = getenv ("PCAP_DEBUG");
937 if (env && atoi(env) > 0 &&
938 pcap_pkt_debug < 0) /* if not already set */
941 pcap_pkt_debug = atoi (env);
944 _watt_do_exit = 0; /* prevent sock_init() calling exit() */
945 prev_post_hook = _w32_usr_post_init;
946 _w32_usr_post_init = pcap_init_hook;
947 _w32_print_hook = null_print;
949 if (dev_name && strncmp(dev_name,"pkt",3))
950 using_pktdrv = FALSE;
953 has_ip_addr = (rc != 8); /* IP-address assignment failed */
955 /* if pcap is using a 32-bit driver w/o a pktdrvr loaded, we
956 * just pretend Watt-32 is initialised okay.
958 * !! fix-me: The Watt-32 config isn't done if no pktdrvr
959 * was found. In that case my_ip_addr + sin_mask
960 * have default values. Should be taken from another
961 * ini-file/environment in any case (ref. tcpdump.ini)
965 if (!using_pktdrv || !has_ip_addr) /* for now .... */
967 static const char myip[] = "192.168.0.1";
968 static const char mask[] = "255.255.255.0";
970 printf ("Just guessing, using IP %s and netmask %s\n", myip, mask);
971 my_ip_addr = aton (myip);
972 _w32_sin_mask = aton (mask);
974 else if (rc && using_pktdrv)
976 sprintf (err_buf, "sock_init() failed, code %d", rc);
980 /* Set recv-hook for peeking in _eth_arrived().
982 #if (WATTCP_VER >= 0x0224)
983 _eth_recv_hook = pcap_recv_hook;
984 _eth_xmit_hook = pcap_xmit_hook;
987 /* Free the pkt-drvr handle allocated in pkt_init().
988 * The above hooks should thus use the handle reopened in open_driver()
993 /* _eth_is_init = 1; */ /* hack to get Rx/Tx-hooks in Watt-32 working */
996 memcpy (&pcap_save, pcap, sizeof(pcap_save));
998 pcap_save.fcode.bf_insns = NULL;
999 pcap_save.linktype = _eth_get_hwtype (NULL, NULL);
1000 pcap_save.snapshot = MTU > 0 ? MTU : ETH_MAX; /* assume 1514 */
1003 /* prevent use of resolve() and resolve_ip()
1005 last_nameserver = 0;
1010 int EISA_bus = 0; /* Where is natural place for this? */
1013 * Application config hooks to set various driver parameters.
1016 static const struct config_table debug_tab[] = {
1017 { "PKT.DEBUG", ARG_ATOI, &pcap_pkt_debug },
1018 { "PKT.VECTOR", ARG_ATOX_W, NULL },
1019 { "NDIS.DEBUG", ARG_ATOI, NULL },
1020 #ifdef USE_32BIT_DRIVERS
1021 { "3C503.DEBUG", ARG_ATOI, &ei_debug },
1022 { "3C503.IO_BASE", ARG_ATOX_W, &el2_dev.base_addr },
1023 { "3C503.MEMORY", ARG_ATOX_W, &el2_dev.mem_start },
1024 { "3C503.IRQ", ARG_ATOI, &el2_dev.irq },
1025 { "3C505.DEBUG", ARG_ATOI, NULL },
1026 { "3C505.BASE", ARG_ATOX_W, NULL },
1027 { "3C507.DEBUG", ARG_ATOI, NULL },
1028 { "3C509.DEBUG", ARG_ATOI, &el3_debug },
1029 { "3C509.ILOOP", ARG_ATOI, &el3_max_loop },
1030 { "3C529.DEBUG", ARG_ATOI, NULL },
1031 { "3C575.DEBUG", ARG_ATOI, &debug_3c575 },
1032 { "3C59X.DEBUG", ARG_ATOI, &vortex_debug },
1033 { "3C59X.IFACE0", ARG_ATOI, &vortex_options[0] },
1034 { "3C59X.IFACE1", ARG_ATOI, &vortex_options[1] },
1035 { "3C59X.IFACE2", ARG_ATOI, &vortex_options[2] },
1036 { "3C59X.IFACE3", ARG_ATOI, &vortex_options[3] },
1037 { "3C90X.DEBUG", ARG_ATOX_W, &tc90xbc_debug },
1038 { "ACCT.DEBUG", ARG_ATOI, ðpk_debug },
1039 { "CS89.DEBUG", ARG_ATOI, &cs89_debug },
1040 { "RTL8139.DEBUG", ARG_ATOI, &rtl8139_debug },
1041 /* { "RTL8139.FDUPLEX", ARG_ATOI, &rtl8139_options }, */
1042 { "SMC.DEBUG", ARG_ATOI, &ei_debug },
1043 /* { "E100.DEBUG", ARG_ATOI, &e100_debug }, */
1044 { "PCI.DEBUG", ARG_ATOI, &pci_debug },
1045 { "BIOS32.DEBUG", ARG_ATOI, &bios32_debug },
1046 { "IRQ.DEBUG", ARG_ATOI, &irq_debug },
1047 { "TIMER.IRQ", ARG_ATOI, &timer_irq },
1053 * pcap_config_hook() is an extension to application's config
1054 * handling. Uses Watt-32's config-table function.
1056 int pcap_config_hook (const char *name, const char *value)
1058 return parse_config_table (debug_tab, NULL, name, value);
1062 * Linked list of supported devices
1064 struct device *active_dev = NULL; /* the device we have opened */
1065 struct device *probed_dev = NULL; /* the device we have probed */
1066 const struct device *dev_base = &pkt_dev; /* list of network devices */
1069 * PKTDRVR device functions
1071 int pcap_pkt_debug = -1;
1073 static void pkt_close (struct device *dev)
1075 BOOL okay = PktExitDriver();
1077 if (pcap_pkt_debug > 1)
1078 fprintf (stderr, "pkt_close(): %d\n", okay);
1085 static int pkt_open (struct device *dev)
1089 if (dev->flags & IFF_PROMISC)
1090 mode = PDRX_ALL_PACKETS;
1091 else mode = PDRX_BROADCAST;
1093 if (!PktInitDriver(mode))
1096 PktResetStatistics (pktInfo.handle);
1097 PktQueueBusy (FALSE);
1101 static int pkt_xmit (struct device *dev, const void *buf, int len)
1103 struct net_device_stats *stats = (struct net_device_stats*) dev->priv;
1105 if (pcap_pkt_debug > 0)
1106 dbug_write ("pcap_xmit\n");
1108 if (!PktTransmit(buf,len))
1116 static void *pkt_stats (struct device *dev)
1118 struct net_device_stats *stats = (struct net_device_stats*) dev->priv;
1120 if (!stats || !PktSessStatistics(pktInfo.handle))
1123 stats->rx_packets = pktStat.inPackets;
1124 stats->rx_errors = pktStat.lost;
1125 stats->rx_missed_errors = PktRxDropped();
1129 static int pkt_probe (struct device *dev)
1131 if (!PktSearchDriver())
1134 dev->open = pkt_open;
1135 dev->xmit = pkt_xmit;
1136 dev->close = pkt_close;
1137 dev->get_stats = pkt_stats;
1138 dev->copy_rx_buf = PktReceive; /* farmem peek and copy routine */
1139 dev->get_rx_buf = NULL;
1140 dev->peek_rx_buf = NULL;
1141 dev->release_rx_buf = NULL;
1142 dev->priv = calloc (sizeof(struct net_device_stats), 1);
1149 * NDIS device functions
1151 static void ndis_close (struct device *dev)
1159 static int ndis_open (struct device *dev)
1161 int promis = (dev->flags & IFF_PROMISC);
1164 if (!NdisInit(promis))
1173 static void *ndis_stats (struct device *dev)
1175 static struct net_device_stats stats;
1182 static int ndis_probe (struct device *dev)
1189 dev->open = ndis_open;
1191 dev->close = ndis_close;
1192 dev->get_stats = ndis_stats;
1193 dev->copy_rx_buf = NULL; /* to-do */
1194 dev->get_rx_buf = NULL; /* upcall is from rmode driver */
1195 dev->peek_rx_buf = NULL;
1196 dev->release_rx_buf = NULL;
1201 * Search & probe for supported 32-bit (pmode) pcap devices
1203 #if defined(USE_32BIT_DRIVERS)
1205 struct device el2_dev LOCKED_VAR = {
1214 struct device el3_dev LOCKED_VAR = {
1223 struct device tc515_dev LOCKED_VAR = {
1232 struct device tc59_dev LOCKED_VAR = {
1241 struct device tc90xbc_dev LOCKED_VAR = {
1250 struct device wd_dev LOCKED_VAR = {
1259 struct device ne_dev LOCKED_VAR = {
1268 struct device acct_dev LOCKED_VAR = {
1270 "Accton EtherPocket",
1277 struct device cs89_dev LOCKED_VAR = {
1279 "Crystal Semiconductor",
1286 struct device rtl8139_dev LOCKED_VAR = {
1292 rtl8139_probe /* dev->probe routine */
1296 * Dequeue routine is called by polling.
1297 * NOTE: the queue-element is not copied, only a pointer is
1298 * returned at '*buf'
1300 int peek_rxbuf (BYTE **buf)
1302 struct rx_elem *tail, *head;
1304 PCAP_ASSERT (pktq_check (&active_dev->queue));
1307 tail = pktq_out_elem (&active_dev->queue);
1308 head = pktq_in_elem (&active_dev->queue);
1313 PCAP_ASSERT (tail->size < active_dev->queue.elem_size-4-2);
1315 *buf = &tail->data[0];
1316 return (tail->size);
1323 * Release buffer we peeked at above.
1325 int release_rxbuf (BYTE *buf)
1328 struct rx_elem *tail = pktq_out_elem (&active_dev->queue);
1330 PCAP_ASSERT (&tail->data[0] == buf);
1334 pktq_inc_out (&active_dev->queue);
1339 * get_rxbuf() routine (in locked code) is called from IRQ handler
1340 * to request a buffer. Interrupts are disabled and we have a 32kB stack.
1342 BYTE *get_rxbuf (int len)
1346 if (len < ETH_MIN || len > ETH_MAX)
1349 idx = pktq_in_index (&active_dev->queue);
1353 static int fan_idx LOCKED_VAR = 0;
1354 writew ("-\\|/"[fan_idx++] | (15 << 8), /* white on black colour */
1355 0xB8000 + 2*79); /* upper-right corner, 80-col colour screen */
1358 /* writew (idx + '0' + 0x0F00, 0xB8000 + 2*78); */
1361 if (idx != active_dev->queue.out_index)
1363 struct rx_elem *head = pktq_in_elem (&active_dev->queue);
1366 active_dev->queue.in_index = idx;
1367 return (&head->data[0]);
1370 /* !!to-do: drop 25% of the oldest element
1372 pktq_clear (&active_dev->queue);
1377 * Simple ring-buffer queue handler for reception of packets
1378 * from network driver.
1380 #define PKTQ_MARKER 0xDEADBEEF
1382 static int pktq_check (struct rx_ringbuf *q)
1389 if (!q || !q->num_elem || !q->buf_start)
1395 for (i = 0; i < q->num_elem; i++)
1397 buf += q->elem_size;
1398 if (*(DWORD*)(buf - sizeof(DWORD)) != PKTQ_MARKER)
1405 static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool)
1409 q->elem_size = size;
1411 q->buf_start = pool;
1415 PCAP_ASSERT (size >= sizeof(struct rx_elem) + sizeof(DWORD));
1419 for (i = 0; i < num; i++)
1422 struct rx_elem *elem = (struct rx_elem*) pool;
1424 /* assert dword aligned elements
1426 PCAP_ASSERT (((unsigned)(&elem->data[0]) & 3) == 0);
1429 *(DWORD*) (pool - sizeof(DWORD)) = PKTQ_MARKER;
1435 * Increment the queue 'out_index' (tail).
1438 static int pktq_inc_out (struct rx_ringbuf *q)
1441 if (q->out_index >= q->num_elem)
1443 return (q->out_index);
1447 * Return the queue's next 'in_index' (head).
1450 static int pktq_in_index (struct rx_ringbuf *q)
1452 volatile int index = q->in_index + 1;
1454 if (index >= q->num_elem)
1460 * Return the queue's head-buffer.
1462 static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q)
1464 return (struct rx_elem*) (q->buf_start + (q->elem_size * q->in_index));
1468 * Return the queue's tail-buffer.
1470 static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q)
1472 return (struct rx_elem*) (q->buf_start + (q->elem_size * q->out_index));
1476 * Clear the queue ring-buffer by setting head=tail.
1478 static void pktq_clear (struct rx_ringbuf *q)
1480 q->in_index = q->out_index;
1484 * Symbols that must be linkable for "gcc -O0"
1492 #include "msdos/pm_drvr/ioport.h"
1493 #include "msdos/pm_drvr/dma.h"
1495 #endif /* USE_32BIT_DRIVERS */