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Assign scope id in nmap_route_dst.

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This is done for all IPv6 addresses when the -e option is used.
This commit is contained in:
david
2011-08-30 23:55:09 +00:00
parent 77204b9d43
commit f86f2dec67
1 changed files with 21 additions and 3 deletions
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24
tcpip.cc
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@@ -1972,16 +1972,34 @@ pcap_if_t *getpcapinterfaces() {
/* Assign the sin6_scope_id member of a sockaddr_in6, based on a device name.
This is used to assign scope to all addresses with the -e option is used. */
static void assign_scope_id(struct sockaddr_in6 *sin6, const char *devname) {
struct interface_info *ii;
if (devname == NULL || devname[0] == '\0')
return;
ii = getInterfaceByName(devname, sin6->sin6_family);
if (ii != NULL)
sin6->sin6_scope_id = ii->ifindex;
}
int nmap_route_dst(const struct sockaddr_storage *dst, struct route_nfo *rnfo) { int nmap_route_dst(const struct sockaddr_storage *dst, struct route_nfo *rnfo) {
struct sockaddr_storage spoofss; struct sockaddr_storage dst_mod, spoofss;
size_t spoofsslen; size_t spoofsslen;
/* Make a copy that we may modify (only to possibly add a sin6_scope_id). */
dst_mod = *dst;
if (dst_mod.ss_family == AF_INET6)
assign_scope_id((struct sockaddr_in6 *) &dst_mod, o.device);
if (o.spoofsource) { if (o.spoofsource) {
o.SourceSockAddr(&spoofss, &spoofsslen); o.SourceSockAddr(&spoofss, &spoofsslen);
return route_dst(dst, rnfo, o.device, &spoofss); return route_dst(&dst_mod, rnfo, o.device, &spoofss);
} else { } else {
return route_dst(dst, rnfo, o.device, NULL); return route_dst(&dst_mod, rnfo, o.device, NULL);
} }
} }