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Don't scan broadcast address, limit network size

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This commit is contained in:
Jeremy Lakeman 2012-12-06 10:42:34 +10:30
parent 59babd75a2
commit f28e95b078
1 changed files with 6 additions and 2 deletions
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8
overlay_mdp.c
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@ -1005,8 +1005,12 @@ void overlay_mdp_poll(struct sched_ent *alarm)
continue; continue;
scans[i].interface = interface; scans[i].interface = interface;
scans[i].current = ntohl(interface->address.sin_addr.s_addr & interface->netmask.s_addr); scans[i].current = ntohl(interface->address.sin_addr.s_addr & interface->netmask.s_addr)+1;
scans[i].last = ntohl(interface->broadcast_address.sin_addr.s_addr); scans[i].last = ntohl(interface->broadcast_address.sin_addr.s_addr)-1;
if (scans[i].last - scans[i].current>0x10000){
INFOF("Skipping scan on interface %s as the address space is too large",interface->name);
continue;
}
scans[i].alarm.alarm=start; scans[i].alarm.alarm=start;
scans[i].alarm.function=overlay_mdp_scan; scans[i].alarm.function=overlay_mdp_scan;
start+=100; start+=100;