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rawnet - close pcap if not an ethernet device.

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This commit is contained in:
Kelvin Sherlock 2018-12-30 15:51:53 -05:00
parent c4796f77ec
commit 5884e751bc
2 changed files with 8 additions and 0 deletions
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2
src/rawnet/rawnetarch_unix.c
View File

@ -228,6 +228,8 @@ static int rawnet_pcap_open_adapter(const char *interface_name)
/* Check the link layer. We support only Ethernet for simplicity. */
if (pcap_datalink(rawnet_pcap_fp) != DLT_EN10MB) {
log_message(rawnet_arch_log, "ERROR: TFE works only on Ethernet networks.");
pcap_close(rawnet_pcap_fp);
rawnet_pcap_fp = NULL;
return 0;
}

6
src/rawnet/rawnetarch_win32.c
View File

@ -45,6 +45,7 @@
#include "rawnetsupp.h"
typedef pcap_t *(*pcap_open_live_t)(const char *, int, int, int, char *);
typedef void *(*pcap_close_t)(pcap_if_t *);
typedef int (*pcap_dispatch_t)(pcap_t *, int, pcap_handler, u_char *);
typedef int (*pcap_setnonblock_t)(pcap_t *, int, char *);
typedef int (*pcap_datalink_t)(pcap_t *);
@ -61,6 +62,7 @@ typedef char *(*pcap_lookupdev_t)(char *);
#define RAWNET_DEBUG_WARN 1 /* this should not be deactivated */
static pcap_open_live_t p_pcap_open_live;
static pcap_close_t p_pcap_close;
static pcap_dispatch_t p_pcap_dispatch;
static pcap_setnonblock_t p_pcap_setnonblock;
static pcap_findalldevs_t p_pcap_findalldevs;
@ -117,6 +119,7 @@ static void EthernetPcapFreeLibrary(void)
pcap_library = NULL;
p_pcap_open_live = NULL;
p_pcap_close = NULL;
p_pcap_dispatch = NULL;
p_pcap_setnonblock = NULL;
p_pcap_findalldevs = NULL;
@ -161,6 +164,7 @@ static BOOL EthernetPcapLoadLibrary(void)
}
GET_PROC_ADDRESS_AND_TEST(pcap_open_live);
GET_PROC_ADDRESS_AND_TEST(pcap_close);
GET_PROC_ADDRESS_AND_TEST(pcap_dispatch);
GET_PROC_ADDRESS_AND_TEST(pcap_setnonblock);
GET_PROC_ADDRESS_AND_TEST(pcap_findalldevs);
@ -288,6 +292,8 @@ static BOOL EthernetPcapOpenAdapter(const char *interface_name)
if ((*p_pcap_datalink)(EthernetPcapFP) != DLT_EN10MB) {
log_message(rawnet_arch_log, "ERROR: Ethernet works only on Ethernet networks.");
rawnet_enumadapter_close();
*(p_pcap_close(EthernetPcapFP));
EthernetPcapFP = NULL;
return FALSE;
}