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
8 * @(#) $Header: /tcpdump/master/libpcap/pcap-dos.c,v 1.2.2.5 2008-04-22 17:16:49 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_activate_dos (pcap_t *p);
101 static int pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback,
103 static void pcap_cleanup_dos (pcap_t *p);
104 static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps);
105 static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len);
106 static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp);
108 static int ndis_probe (struct device *dev);
109 static int pkt_probe (struct device *dev);
111 static void close_driver (void);
112 static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf);
113 static int first_init (const char *name, char *ebuf, int promisc);
115 static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap,
119 * These are the device we always support
121 static struct device ndis_dev = {
126 NDIS_NEXT_DEV, /* NULL or a 32-bit device */
130 static struct device pkt_dev = {
139 static struct device *get_device (int fd)
141 if (fd <= 0 || fd >= sizeof(handle_to_device)/sizeof(handle_to_device[0]))
143 return handle_to_device [fd-1];
146 pcap_t *pcap_create (const char *device, char *ebuf)
150 p = pcap_create_common(device, ebuf);
154 p->activate_op = pcap_activate_dos;
159 * Open MAC-driver with name 'device_name' for live capture of
162 static int pcap_activate_dos (pcap_t *pcap)
164 if (pcap->opt.rfmon) {
166 * No monitor mode on DOS.
168 return (PCAP_ERROR_RFMON_NOTSUP);
171 if (pcap->snapshot < ETH_MIN+8)
172 pcap->snapshot = ETH_MIN+8;
174 if (pcap->snapshot > ETH_MAX) /* silently accept and truncate large MTUs */
175 pcap->snapshot = ETH_MAX;
177 pcap->linktype = DLT_EN10MB; /* !! */
178 pcap->cleanup_op = pcap_cleanup_dos;
179 pcap->read_op = pcap_read_dos;
180 pcap->stats_op = pcap_stats_dos;
181 pcap->inject_op = pcap_sendpacket_dos;
182 pcap->setfilter_op = pcap_setfilter_dos;
183 pcap->setdirection_op = NULL; /* Not implemented.*/
184 pcap->fd = ++ref_count;
186 if (pcap->fd == 1) /* first time we're called */
188 if (!init_watt32(pcap, pcap->opt.source, pcap->errbuf) ||
189 !first_init(pcap->opt.source, pcap->errbuf, pcap->opt.promisc))
193 atexit (close_driver);
195 else if (stricmp(active_dev->name,pcap->opt.source))
197 snprintf (pcap->errbuf, PCAP_ERRBUF_SIZE,
198 "Cannot use different devices simultaneously "
199 "(`%s' vs. `%s')", active_dev->name, pcap->opt.source);
202 handle_to_device [pcap->fd-1] = active_dev;
207 * Poll the receiver queue and call the pcap callback-handler
211 pcap_read_one (pcap_t *p, pcap_handler callback, u_char *data)
213 struct pcap_pkthdr pcap;
214 struct timeval now, expiry;
218 if (p->md.timeout > 0)
220 gettimeofday2 (&now, NULL);
221 expiry.tv_usec = now.tv_usec + 1000UL * p->md.timeout;
222 expiry.tv_sec = now.tv_sec;
223 while (expiry.tv_usec >= 1000000L)
225 expiry.tv_usec -= 1000000L;
232 volatile struct device *dev; /* might be reset by sig_handler */
234 dev = get_device (p->fd);
238 PCAP_ASSERT (dev->copy_rx_buf || dev->peek_rx_buf);
241 /* If driver has a zero-copy receive facility, peek at the queue,
242 * filter it, do the callback and release the buffer.
244 if (dev->peek_rx_buf)
246 PCAP_ASSERT (dev->release_rx_buf);
247 rx_len = (*dev->peek_rx_buf) (&rx_buf);
251 BYTE buf [ETH_MAX+100]; /* add some margin */
252 rx_len = (*dev->copy_rx_buf) (buf, p->snapshot);
256 if (rx_len > 0) /* got a packet */
262 pcap.caplen = min (rx_len, p->snapshot);
266 (!p->fcode.bf_insns || bpf_filter(p->fcode.bf_insns, rx_buf, pcap.len, pcap.caplen)))
270 /* Fix-me!! Should be time of arrival. Not time of
273 gettimeofday2 (&pcap.ts, NULL);
274 (*callback) (data, &pcap, rx_buf);
277 if (dev->release_rx_buf)
278 (*dev->release_rx_buf) (rx_buf);
280 if (pcap_pkt_debug > 0)
282 if (callback == watt32_recv_hook)
283 dbug_write ("pcap_recv_hook\n");
284 else dbug_write ("pcap_read_op\n");
290 /* If not to wait for a packet or pcap_close() called from
291 * e.g. SIGINT handler, exit loop now.
293 if (p->md.timeout <= 0 || (volatile int)p->fd <= 0)
296 gettimeofday2 (&now, NULL);
298 if (timercmp(&now, &expiry, >))
302 kbhit(); /* a real CPU hog */
306 (*p->wait_proc)(); /* call yield func */
309 if (rx_len < 0) /* receive error */
311 p->md.stat.ps_drop++;
312 #ifdef USE_32BIT_DRIVERS
313 if (pcap_pkt_debug > 1)
314 printk ("pkt-err %s\n", pktInfo.error);
322 pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback, u_char *data)
326 while (num <= cnt || (cnt < 0))
330 rc = pcap_read_one (p, callback, data);
335 _w32_os_yield(); /* allow SIGINT generation, yield to Win95/NT */
341 * Return network statistics
343 static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps)
345 struct net_device_stats *stats;
346 struct device *dev = p ? get_device(p->fd) : NULL;
350 strcpy (p->errbuf, "illegal pcap handle");
354 if (!dev->get_stats || (stats = (*dev->get_stats)(dev)) == NULL)
356 strcpy (p->errbuf, "device statistics not available");
362 p->md.stat.ps_recv = stats->rx_packets;
363 p->md.stat.ps_drop += stats->rx_missed_errors;
364 p->md.stat.ps_ifdrop = stats->rx_dropped + /* queue full */
365 stats->rx_errors; /* HW errors */
373 * Return detailed network/device statistics.
374 * May be called after 'dev->close' is called.
376 int pcap_stats_ex (pcap_t *p, struct pcap_stat_ex *se)
378 struct device *dev = p ? get_device (p->fd) : NULL;
380 if (!dev || !dev->get_stats)
382 strlcpy (p->errbuf, "detailed device statistics not available",
387 if (!strnicmp(dev->name,"pkt",3))
389 strlcpy (p->errbuf, "pktdrvr doesn't have detailed statistics",
393 memcpy (se, (*dev->get_stats)(dev), sizeof(*se));
398 * Simply store the filter-code for the pcap_read_dos() callback
399 * Some day the filter-code could be handed down to the active
400 * device (pkt_rx1.s or 32-bit device interrupt handler).
402 static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp)
411 * Return # of packets received in pcap_read_dos()
413 u_long pcap_mac_packets (void)
419 * Return # of packets passed through filter in pcap_read_dos()
421 u_long pcap_filter_packets (void)
423 return (filter_count);
427 * Close pcap device. Not called for offline captures.
429 static void pcap_cleanup_dos (pcap_t *p)
431 if (p && !exc_occured)
433 if (pcap_stats(p,NULL) < 0)
434 p->md.stat.ps_drop = 0;
435 if (!get_device(p->fd))
438 handle_to_device [p->fd-1] = NULL;
449 * Return the name of the 1st network interface,
450 * or NULL if none can be found.
452 char *pcap_lookupdev (char *ebuf)
456 #ifdef USE_32BIT_DRIVERS
460 for (dev = (struct device*)dev_base; dev; dev = dev->next)
462 PCAP_ASSERT (dev->probe);
464 if ((*dev->probe)(dev))
467 probed_dev = (struct device*) dev; /* remember last probed device */
468 return (char*) dev->name;
473 strcpy (ebuf, "No driver found");
478 * Gets localnet & netmask from Watt-32.
480 int pcap_lookupnet (const char *device, bpf_u_int32 *localnet,
481 bpf_u_int32 *netmask, char *errbuf)
485 strcpy (errbuf, "pcap_open_offline() or pcap_activate() must be "
490 *netmask = _w32_sin_mask;
491 *localnet = my_ip_addr & *netmask;
494 if (IN_CLASSA(*netmask))
495 *localnet = IN_CLASSA_NET;
496 else if (IN_CLASSB(*netmask))
497 *localnet = IN_CLASSB_NET;
498 else if (IN_CLASSC(*netmask))
499 *localnet = IN_CLASSC_NET;
502 sprintf (errbuf, "inet class for 0x%lx unknown", *netmask);
511 * Get a list of all interfaces that are present and that we probe okay.
512 * Returns -1 on error, 0 otherwise.
513 * The list, as returned through "alldevsp", may be null if no interfaces
514 * were up and could be opened.
516 int pcap_findalldevs (pcap_if_t **alldevsp, char *errbuf)
519 struct sockaddr_ll sa_ll_1, sa_ll_2;
520 struct sockaddr *addr, *netmask, *broadaddr, *dstaddr;
521 pcap_if_t *devlist = NULL;
523 size_t addr_size = sizeof(struct sockaddr_ll);
525 for (dev = (struct device*)dev_base; dev; dev = dev->next)
527 PCAP_ASSERT (dev->probe);
529 if (!(*dev->probe)(dev))
532 PCAP_ASSERT (dev->close); /* set by probe routine */
536 memset (&sa_ll_1, 0, sizeof(sa_ll_1));
537 memset (&sa_ll_2, 0, sizeof(sa_ll_2));
538 sa_ll_1.sll_family = AF_PACKET;
539 sa_ll_2.sll_family = AF_PACKET;
541 addr = (struct sockaddr*) &sa_ll_1;
542 netmask = (struct sockaddr*) &sa_ll_1;
543 dstaddr = (struct sockaddr*) &sa_ll_1;
544 broadaddr = (struct sockaddr*) &sa_ll_2;
545 memset (&sa_ll_2.sll_addr, 0xFF, sizeof(sa_ll_2.sll_addr));
547 if (pcap_add_if(&devlist, dev->name, dev->flags,
548 dev->long_name, errbuf) < 0)
553 if (add_addr_to_iflist(&devlist,dev->name, dev->flags, addr, addr_size,
554 netmask, addr_size, broadaddr, addr_size,
555 dstaddr, addr_size, errbuf) < 0)
562 if (devlist && ret < 0)
564 pcap_freealldevs (devlist);
569 strcpy (errbuf, "No drivers found");
576 * pcap_assert() is mainly used for debugging
578 void pcap_assert (const char *what, const char *file, unsigned line)
581 fprintf (stderr, "%s (%u): Assertion \"%s\" failed\n",
588 * For pcap_offline_read(): wait and yield between printing packets
589 * to simulate the pace packets where actually recorded.
591 void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait)
595 p->wait_proc = yield;
596 p->md.timeout = wait;
601 * Initialise a named network device.
603 static struct device *
604 open_driver (const char *dev_name, char *ebuf, int promisc)
608 for (dev = (struct device*)dev_base; dev; dev = dev->next)
610 PCAP_ASSERT (dev->name);
612 if (strcmp (dev_name,dev->name))
615 if (!probed_dev) /* user didn't call pcap_lookupdev() first */
617 PCAP_ASSERT (dev->probe);
619 if (!(*dev->probe)(dev)) /* call the xx_probe() function */
621 sprintf (ebuf, "failed to detect device `%s'", dev_name);
624 probed_dev = dev; /* device is probed okay and may be used */
626 else if (dev != probed_dev)
633 /* Select what traffic to receive
636 dev->flags |= (IFF_ALLMULTI | IFF_PROMISC);
637 else dev->flags &= ~(IFF_ALLMULTI | IFF_PROMISC);
639 PCAP_ASSERT (dev->open);
641 if (!(*dev->open)(dev))
643 sprintf (ebuf, "failed to activate device `%s'", dev_name);
644 if (pktInfo.error && !strncmp(dev->name,"pkt",3))
647 strcat (ebuf, pktInfo.error);
652 /* Some devices need this to operate in promiscous mode
654 if (promisc && dev->set_multicast_list)
655 (*dev->set_multicast_list) (dev);
657 active_dev = dev; /* remember our active device */
661 /* 'dev_name' not matched in 'dev_base' list.
665 sprintf (ebuf, "device `%s' not supported", dev_name);
672 sprintf (ebuf, "device `%s' not probed", dev_name);
679 * Deinitialise MAC driver.
680 * Set receive mode back to default mode.
682 static void close_driver (void)
684 /* !!todo: loop over all 'handle_to_device[]' ? */
685 struct device *dev = active_dev;
687 if (dev && dev->close)
695 #ifdef USE_32BIT_DRIVERS
708 static void setup_signals (void (*handler)(int))
710 signal (SIGSEGV,handler);
711 signal (SIGILL, handler);
712 signal (SIGFPE, handler);
715 static void exc_handler (int sig)
717 #ifdef USE_32BIT_DRIVERS
718 if (active_dev->irq > 0) /* excludes IRQ 0 */
720 disable_irq (active_dev->irq);
721 irq_eoi_cmd (active_dev->irq);
729 fputs ("Catching SIGSEGV.\n", stderr);
732 fputs ("Catching SIGILL.\n", stderr);
736 fputs ("Catching SIGFPE.\n", stderr);
739 fprintf (stderr, "Catching signal %d.\n", sig);
742 pcap_cleanup_dos (NULL);
744 #endif /* __DJGPP__ */
748 * Open the pcap device for the first client calling pcap_activate()
750 static int first_init (const char *name, char *ebuf, int promisc)
754 #ifdef USE_32BIT_DRIVERS
755 rx_pool = k_calloc (RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE);
758 strcpy (ebuf, "Not enough memory (Rx pool)");
764 setup_signals (exc_handler);
767 #ifdef USE_32BIT_DRIVERS
771 dev = open_driver (name, ebuf, promisc);
774 #ifdef USE_32BIT_DRIVERS
780 setup_signals (SIG_DFL);
785 #ifdef USE_32BIT_DRIVERS
787 * If driver is NOT a 16-bit "pkt/ndis" driver (having a 'copy_rx_buf'
788 * set in it's probe handler), initialise near-memory ring-buffer for
791 if (dev->copy_rx_buf == NULL)
793 dev->get_rx_buf = get_rxbuf;
794 dev->peek_rx_buf = peek_rxbuf;
795 dev->release_rx_buf = release_rxbuf;
796 pktq_init (&dev->queue, RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE, rx_pool);
802 #ifdef USE_32BIT_DRIVERS
803 static void init_32bit (void)
805 static int init_pci = 0;
808 _printk_init (64*1024, NULL); /* calls atexit(printk_exit) */
811 (void)pci_init(); /* init BIOS32+PCI interface */
818 * Hook functions for using Watt-32 together with pcap
820 static char rxbuf [ETH_MAX+100]; /* rx-buffer with some margin */
822 static pcap_t pcap_save;
824 static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap,
827 /* Fix me: assumes Ethernet II only */
828 struct ether_header *ep = (struct ether_header*) buf;
830 memcpy (rxbuf, buf, pcap->caplen);
831 etype = ep->ether_type;
835 #if (WATTCP_VER >= 0x0224)
837 * This function is used by Watt-32 to poll for a packet.
838 * i.e. it's set to bypass _eth_arrived()
840 static void *pcap_recv_hook (WORD *type)
842 int len = pcap_read_dos (&pcap_save, 1, watt32_recv_hook, NULL);
848 return (void*) &rxbuf;
852 * This function is called by Watt-32 (via _eth_xmit_hook).
853 * If dbug_init() was called, we should trace packets sent.
855 static int pcap_xmit_hook (const void *buf, unsigned len)
859 if (pcap_pkt_debug > 0)
860 dbug_write ("pcap_xmit_hook: ");
862 if (active_dev && active_dev->xmit)
863 if ((*active_dev->xmit) (active_dev, buf, len) > 0)
866 if (pcap_pkt_debug > 0)
867 dbug_write (rc ? "ok\n" : "fail\n");
872 static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len)
874 struct device *dev = p ? get_device(p->fd) : NULL;
876 if (!dev || !dev->xmit)
878 return (*dev->xmit) (dev, buf, len);
882 * This function is called by Watt-32 in tcp_post_init().
883 * We should prevent Watt-32 from using BOOTP/DHCP/RARP etc.
885 static void (*prev_post_hook) (void);
887 static void pcap_init_hook (void)
889 _w32__bootp_on = _w32__dhcp_on = _w32__rarp_on = 0;
890 _w32__do_mask_req = 0;
891 _w32_dynamic_host = 0;
897 * Supress PRINT message from Watt-32's sock_init()
899 static void null_print (void) {}
902 * To use features of Watt-32 (netdb functions and socket etc.)
903 * we must call sock_init(). But we set various hooks to prevent
904 * using normal PKTDRVR functions in pcpkt.c. This should hopefully
905 * make Watt-32 and pcap co-operate.
907 static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf)
910 int rc, MTU, has_ip_addr;
911 int using_pktdrv = 1;
913 /* If user called sock_init() first, we need to reinit in
914 * order to open debug/trace-file properly
919 env = getenv ("PCAP_DEBUG");
920 if (env && atoi(env) > 0 &&
921 pcap_pkt_debug < 0) /* if not already set */
924 pcap_pkt_debug = atoi (env);
927 _watt_do_exit = 0; /* prevent sock_init() calling exit() */
928 prev_post_hook = _w32_usr_post_init;
929 _w32_usr_post_init = pcap_init_hook;
930 _w32_print_hook = null_print;
932 if (dev_name && strncmp(dev_name,"pkt",3))
933 using_pktdrv = FALSE;
936 has_ip_addr = (rc != 8); /* IP-address assignment failed */
938 /* if pcap is using a 32-bit driver w/o a pktdrvr loaded, we
939 * just pretend Watt-32 is initialised okay.
941 * !! fix-me: The Watt-32 config isn't done if no pktdrvr
942 * was found. In that case my_ip_addr + sin_mask
943 * have default values. Should be taken from another
944 * ini-file/environment in any case (ref. tcpdump.ini)
948 if (!using_pktdrv || !has_ip_addr) /* for now .... */
950 static const char myip[] = "192.168.0.1";
951 static const char mask[] = "255.255.255.0";
953 printf ("Just guessing, using IP %s and netmask %s\n", myip, mask);
954 my_ip_addr = aton (myip);
955 _w32_sin_mask = aton (mask);
957 else if (rc && using_pktdrv)
959 sprintf (err_buf, "sock_init() failed, code %d", rc);
963 /* Set recv-hook for peeking in _eth_arrived().
965 #if (WATTCP_VER >= 0x0224)
966 _eth_recv_hook = pcap_recv_hook;
967 _eth_xmit_hook = pcap_xmit_hook;
970 /* Free the pkt-drvr handle allocated in pkt_init().
971 * The above hooks should thus use the handle reopened in open_driver()
976 /* _eth_is_init = 1; */ /* hack to get Rx/Tx-hooks in Watt-32 working */
979 memcpy (&pcap_save, pcap, sizeof(pcap_save));
981 pcap_save.fcode.bf_insns = NULL;
982 pcap_save.linktype = _eth_get_hwtype (NULL, NULL);
983 pcap_save.snapshot = MTU > 0 ? MTU : ETH_MAX; /* assume 1514 */
986 /* prevent use of resolve() and resolve_ip()
993 int EISA_bus = 0; /* Where is natural place for this? */
996 * Application config hooks to set various driver parameters.
999 static const struct config_table debug_tab[] = {
1000 { "PKT.DEBUG", ARG_ATOI, &pcap_pkt_debug },
1001 { "PKT.VECTOR", ARG_ATOX_W, NULL },
1002 { "NDIS.DEBUG", ARG_ATOI, NULL },
1003 #ifdef USE_32BIT_DRIVERS
1004 { "3C503.DEBUG", ARG_ATOI, &ei_debug },
1005 { "3C503.IO_BASE", ARG_ATOX_W, &el2_dev.base_addr },
1006 { "3C503.MEMORY", ARG_ATOX_W, &el2_dev.mem_start },
1007 { "3C503.IRQ", ARG_ATOI, &el2_dev.irq },
1008 { "3C505.DEBUG", ARG_ATOI, NULL },
1009 { "3C505.BASE", ARG_ATOX_W, NULL },
1010 { "3C507.DEBUG", ARG_ATOI, NULL },
1011 { "3C509.DEBUG", ARG_ATOI, &el3_debug },
1012 { "3C509.ILOOP", ARG_ATOI, &el3_max_loop },
1013 { "3C529.DEBUG", ARG_ATOI, NULL },
1014 { "3C575.DEBUG", ARG_ATOI, &debug_3c575 },
1015 { "3C59X.DEBUG", ARG_ATOI, &vortex_debug },
1016 { "3C59X.IFACE0", ARG_ATOI, &vortex_options[0] },
1017 { "3C59X.IFACE1", ARG_ATOI, &vortex_options[1] },
1018 { "3C59X.IFACE2", ARG_ATOI, &vortex_options[2] },
1019 { "3C59X.IFACE3", ARG_ATOI, &vortex_options[3] },
1020 { "3C90X.DEBUG", ARG_ATOX_W, &tc90xbc_debug },
1021 { "ACCT.DEBUG", ARG_ATOI, ðpk_debug },
1022 { "CS89.DEBUG", ARG_ATOI, &cs89_debug },
1023 { "RTL8139.DEBUG", ARG_ATOI, &rtl8139_debug },
1024 /* { "RTL8139.FDUPLEX", ARG_ATOI, &rtl8139_options }, */
1025 { "SMC.DEBUG", ARG_ATOI, &ei_debug },
1026 /* { "E100.DEBUG", ARG_ATOI, &e100_debug }, */
1027 { "PCI.DEBUG", ARG_ATOI, &pci_debug },
1028 { "BIOS32.DEBUG", ARG_ATOI, &bios32_debug },
1029 { "IRQ.DEBUG", ARG_ATOI, &irq_debug },
1030 { "TIMER.IRQ", ARG_ATOI, &timer_irq },
1036 * pcap_config_hook() is an extension to application's config
1037 * handling. Uses Watt-32's config-table function.
1039 int pcap_config_hook (const char *name, const char *value)
1041 return parse_config_table (debug_tab, NULL, name, value);
1045 * Linked list of supported devices
1047 struct device *active_dev = NULL; /* the device we have opened */
1048 struct device *probed_dev = NULL; /* the device we have probed */
1049 const struct device *dev_base = &pkt_dev; /* list of network devices */
1052 * PKTDRVR device functions
1054 int pcap_pkt_debug = -1;
1056 static void pkt_close (struct device *dev)
1058 BOOL okay = PktExitDriver();
1060 if (pcap_pkt_debug > 1)
1061 fprintf (stderr, "pkt_close(): %d\n", okay);
1068 static int pkt_open (struct device *dev)
1072 if (dev->flags & IFF_PROMISC)
1073 mode = PDRX_ALL_PACKETS;
1074 else mode = PDRX_BROADCAST;
1076 if (!PktInitDriver(mode))
1079 PktResetStatistics (pktInfo.handle);
1080 PktQueueBusy (FALSE);
1084 static int pkt_xmit (struct device *dev, const void *buf, int len)
1086 struct net_device_stats *stats = (struct net_device_stats*) dev->priv;
1088 if (pcap_pkt_debug > 0)
1089 dbug_write ("pcap_xmit\n");
1091 if (!PktTransmit(buf,len))
1099 static void *pkt_stats (struct device *dev)
1101 struct net_device_stats *stats = (struct net_device_stats*) dev->priv;
1103 if (!stats || !PktSessStatistics(pktInfo.handle))
1106 stats->rx_packets = pktStat.inPackets;
1107 stats->rx_errors = pktStat.lost;
1108 stats->rx_missed_errors = PktRxDropped();
1112 static int pkt_probe (struct device *dev)
1114 if (!PktSearchDriver())
1117 dev->open = pkt_open;
1118 dev->xmit = pkt_xmit;
1119 dev->close = pkt_close;
1120 dev->get_stats = pkt_stats;
1121 dev->copy_rx_buf = PktReceive; /* farmem peek and copy routine */
1122 dev->get_rx_buf = NULL;
1123 dev->peek_rx_buf = NULL;
1124 dev->release_rx_buf = NULL;
1125 dev->priv = calloc (sizeof(struct net_device_stats), 1);
1132 * NDIS device functions
1134 static void ndis_close (struct device *dev)
1142 static int ndis_open (struct device *dev)
1144 int promis = (dev->flags & IFF_PROMISC);
1147 if (!NdisInit(promis))
1156 static void *ndis_stats (struct device *dev)
1158 static struct net_device_stats stats;
1165 static int ndis_probe (struct device *dev)
1172 dev->open = ndis_open;
1174 dev->close = ndis_close;
1175 dev->get_stats = ndis_stats;
1176 dev->copy_rx_buf = NULL; /* to-do */
1177 dev->get_rx_buf = NULL; /* upcall is from rmode driver */
1178 dev->peek_rx_buf = NULL;
1179 dev->release_rx_buf = NULL;
1184 * Search & probe for supported 32-bit (pmode) pcap devices
1186 #if defined(USE_32BIT_DRIVERS)
1188 struct device el2_dev LOCKED_VAR = {
1197 struct device el3_dev LOCKED_VAR = {
1206 struct device tc515_dev LOCKED_VAR = {
1215 struct device tc59_dev LOCKED_VAR = {
1224 struct device tc90xbc_dev LOCKED_VAR = {
1233 struct device wd_dev LOCKED_VAR = {
1242 struct device ne_dev LOCKED_VAR = {
1251 struct device acct_dev LOCKED_VAR = {
1253 "Accton EtherPocket",
1260 struct device cs89_dev LOCKED_VAR = {
1262 "Crystal Semiconductor",
1269 struct device rtl8139_dev LOCKED_VAR = {
1275 rtl8139_probe /* dev->probe routine */
1279 * Dequeue routine is called by polling.
1280 * NOTE: the queue-element is not copied, only a pointer is
1281 * returned at '*buf'
1283 int peek_rxbuf (BYTE **buf)
1285 struct rx_elem *tail, *head;
1287 PCAP_ASSERT (pktq_check (&active_dev->queue));
1290 tail = pktq_out_elem (&active_dev->queue);
1291 head = pktq_in_elem (&active_dev->queue);
1296 PCAP_ASSERT (tail->size < active_dev->queue.elem_size-4-2);
1298 *buf = &tail->data[0];
1299 return (tail->size);
1306 * Release buffer we peeked at above.
1308 int release_rxbuf (BYTE *buf)
1311 struct rx_elem *tail = pktq_out_elem (&active_dev->queue);
1313 PCAP_ASSERT (&tail->data[0] == buf);
1317 pktq_inc_out (&active_dev->queue);
1322 * get_rxbuf() routine (in locked code) is called from IRQ handler
1323 * to request a buffer. Interrupts are disabled and we have a 32kB stack.
1325 BYTE *get_rxbuf (int len)
1329 if (len < ETH_MIN || len > ETH_MAX)
1332 idx = pktq_in_index (&active_dev->queue);
1336 static int fan_idx LOCKED_VAR = 0;
1337 writew ("-\\|/"[fan_idx++] | (15 << 8), /* white on black colour */
1338 0xB8000 + 2*79); /* upper-right corner, 80-col colour screen */
1341 /* writew (idx + '0' + 0x0F00, 0xB8000 + 2*78); */
1344 if (idx != active_dev->queue.out_index)
1346 struct rx_elem *head = pktq_in_elem (&active_dev->queue);
1349 active_dev->queue.in_index = idx;
1350 return (&head->data[0]);
1353 /* !!to-do: drop 25% of the oldest element
1355 pktq_clear (&active_dev->queue);
1360 * Simple ring-buffer queue handler for reception of packets
1361 * from network driver.
1363 #define PKTQ_MARKER 0xDEADBEEF
1365 static int pktq_check (struct rx_ringbuf *q)
1372 if (!q || !q->num_elem || !q->buf_start)
1378 for (i = 0; i < q->num_elem; i++)
1380 buf += q->elem_size;
1381 if (*(DWORD*)(buf - sizeof(DWORD)) != PKTQ_MARKER)
1388 static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool)
1392 q->elem_size = size;
1394 q->buf_start = pool;
1398 PCAP_ASSERT (size >= sizeof(struct rx_elem) + sizeof(DWORD));
1402 for (i = 0; i < num; i++)
1405 struct rx_elem *elem = (struct rx_elem*) pool;
1407 /* assert dword aligned elements
1409 PCAP_ASSERT (((unsigned)(&elem->data[0]) & 3) == 0);
1412 *(DWORD*) (pool - sizeof(DWORD)) = PKTQ_MARKER;
1418 * Increment the queue 'out_index' (tail).
1421 static int pktq_inc_out (struct rx_ringbuf *q)
1424 if (q->out_index >= q->num_elem)
1426 return (q->out_index);
1430 * Return the queue's next 'in_index' (head).
1433 static int pktq_in_index (struct rx_ringbuf *q)
1435 volatile int index = q->in_index + 1;
1437 if (index >= q->num_elem)
1443 * Return the queue's head-buffer.
1445 static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q)
1447 return (struct rx_elem*) (q->buf_start + (q->elem_size * q->in_index));
1451 * Return the queue's tail-buffer.
1453 static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q)
1455 return (struct rx_elem*) (q->buf_start + (q->elem_size * q->out_index));
1459 * Clear the queue ring-buffer by setting head=tail.
1461 static void pktq_clear (struct rx_ringbuf *q)
1463 q->in_index = q->out_index;
1467 * Symbols that must be linkable for "gcc -O0"
1475 #include "msdos/pm_drvr/ioport.h"
1476 #include "msdos/pm_drvr/dma.h"
1478 #endif /* USE_32BIT_DRIVERS */