src/sys/netinet/ip_input.c - diff

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version 1.169.2.1, 2004/08/03 10:54:39

version 1.169.2.2, 2004/10/19 15:58:14

Line 575 ip_input(struct mbuf *m)

/* Must compute it ourselves. */

INET_CSUM_COUNTER_INCR(&ip_swcsum);

if (in_cksum(m, hlen) != 0)

goto bad;

goto badcsum;

break;

}

Line 649 ip_input(struct mbuf *m)

return;

ip = mtod(m, struct ip *);

hlen = ip->ip_hl << 2;

* XXX The setting of "srcrt" here is to prevent ip_forward()

* from generating ICMP redirects for packets that have

* been redirected by a hook back out on to the same LAN that

* they came from and is not an indication that the packet

* is being inffluenced by source routing options. This

* allows things like

* "rdr tlp0 0/0 port 80 -> 1.1.1.200 3128 tcp"

* where tlp0 is both on the 1.1.1.0/24 network and is the

* default route for hosts on 1.1.1.0/24. Of course this

* also requires a "map tlp0 ..." to complete the story.

* One might argue whether or not this kind of network config.

* should be supported in this manner...

srcrt = (odst.s_addr != ip->ip_dst.s_addr);

}

#endif /* PFIL_HOOKS */