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pcapif: added the possibility to instantiate more than one pcap driver by passing the adapter index as 'state' to netif_add()

This commit is contained in:
Simon Goldschmidt 2011-09-11 12:49:57 +02:00
parent 7f3c08494a
commit e3bcc2fe4e
1 changed files with 13 additions and 1 deletions
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14
ports/win32/pcapif.c
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@ -471,6 +471,18 @@ pcapif_low_level_init(struct netif *netif)
int adapter_num = PACKET_LIB_ADAPTER_NR;
struct pcapif_private *pa;
/* If 'state' is != NULL at this point, we assume it is an 'int' giving
the index of the adapter to use (+ 1 because 0==NULL is invalid).
This can be used to instantiate multiple PCAP drivers. */
if (netif->state != NULL) {
adapter_num = ((int)netif->state) - 1;
if (adapter_num < 0) {
printf("ERROR: invalid adapter index \"%d\"!\n", adapter_num);
LWIP_ASSERT("ERROR initializing network adapter!\n", 0);
return;
}
}
#ifdef PACKET_LIB_GET_ADAPTER_NETADDRESS
ip_addr_t netaddr;
#define GUID_LEN 128
@ -504,7 +516,7 @@ pcapif_low_level_init(struct netif *netif)
/* Do whatever else is needed to initialize interface. */
pa = pcapif_init_adapter(adapter_num, netif);
if (pa == NULL) {
printf("ERROR initializing network adapter %d!\n", PACKET_LIB_ADAPTER_NR);
printf("ERROR initializing network adapter %d!\n", adapter_num);
LWIP_ASSERT("ERROR initializing network adapter!", 0);
return;
}