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Consolidate raw socket acquisition.

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This commit is contained in:
dmiller
2025-06-30 19:24:32 +00:00
parent fc71b7544d
commit 67a796844f
16 changed files with 162 additions and 207 deletions
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25
idle_scan.cc
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@@ -599,30 +599,19 @@ static void initialize_idleproxy(struct idle_proxy_info *proxy, char *proxyName,
/* Now lets send some probes to check IP ID algorithm ... */
/* First we need a raw socket ... */
if ((o.sendpref & PACKET_SEND_ETH) && (proxy->host.ifType() == devt_ethernet
#ifdef WIN32
|| (o.have_pcap && proxy->host.ifType() == devt_loopback)
#endif
)) {
if (!raw_socket_or_eth(o.sendpref, proxy->host.deviceName(),
&proxy->rawsd, &proxy->eth.ethsd)) {
fatal("%s: Failed to open raw socket or ethernet handle", __func__);
}
if (proxy->eth.ethsd != NULL) {
if (!setTargetNextHopMAC(&proxy->host))
fatal("%s: Failed to determine dst MAC address for Idle proxy", __func__);
memcpy(proxy->eth.srcmac, proxy->host.SrcMACAddress(), 6);
memcpy(proxy->eth.dstmac, proxy->host.NextHopMACAddress(), 6);
proxy->eth.ethsd = eth_open_cached(proxy->host.deviceName());
if (proxy->eth.ethsd == NULL)
fatal("%s: Failed to open ethernet device (%s)", __func__, proxy->host.deviceName());
proxy->rawsd = -1;
proxy->ethptr = &proxy->eth;
} else {
#ifdef WIN32
win32_fatal_raw_sockets(proxy->host.deviceName());
#endif
proxy->rawsd = nmap_raw_socket();
if (proxy->rawsd < 0)
pfatal("socket troubles in %s", __func__);
}
else {
unblock_socket(proxy->rawsd);
proxy->eth.ethsd = NULL;
proxy->ethptr = NULL;
}
if (proxy->host.af() == AF_INET6)