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Allow layer-2 sending for non-Ethernet links; MAC addr optional

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This commit is contained in:
dmiller
2025-06-26 19:03:01 +00:00
parent f2028a2007
commit fc71b7544d
5 changed files with 82 additions and 45 deletions
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20
scan_engine_raw.cc
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@@ -969,13 +969,15 @@ UltraProbe *sendNDScanProbe(UltraScanInfo *USI, HostScanStats *hss,
ns_dst_ip6 = *hss->target->v6hostip();
if (USI->ethsd) {
unsigned char ns_dst_mac[6] = {0x33, 0x33, 0xff};
ns_dst_mac[3] = ns_dst_ip6.s6_addr[13];
ns_dst_mac[4] = ns_dst_ip6.s6_addr[14];
ns_dst_mac[5] = ns_dst_ip6.s6_addr[15];
if (netutil_eth_datalink(USI->ethsd) == DLT_EN10MB) {
unsigned char ns_dst_mac[6] = {0x33, 0x33, 0xff};
ns_dst_mac[3] = ns_dst_ip6.s6_addr[13];
ns_dst_mac[4] = ns_dst_ip6.s6_addr[14];
ns_dst_mac[5] = ns_dst_ip6.s6_addr[15];
memcpy(eth.srcmac, hss->target->SrcMACAddress(), 6);
memcpy(eth.dstmac, ns_dst_mac, 6);
memcpy(eth.srcmac, hss->target->SrcMACAddress(), 6);
memcpy(eth.dstmac, ns_dst_mac, 6);
}
eth.ethsd = USI->ethsd;
eth.devname[0] = '\0';
ethptr = ð
@@ -1159,8 +1161,10 @@ UltraProbe *sendIPScanProbe(UltraScanInfo *USI, HostScanStats *hss,
u16 icmp_ident = (get_random_u16() % 0xffff) + 1;
if (USI->ethsd) {
memcpy(eth.srcmac, hss->target->SrcMACAddress(), 6);
memcpy(eth.dstmac, hss->target->NextHopMACAddress(), 6);
if (netutil_eth_datalink(USI->ethsd) == DLT_EN10MB) {
memcpy(eth.srcmac, hss->target->SrcMACAddress(), 6);
memcpy(eth.dstmac, hss->target->NextHopMACAddress(), 6);
}
eth.ethsd = USI->ethsd;
eth.devname[0] = '\0';
ethptr = ð