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Relay no longer crashes, when DHCP packet is received over interface without

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any IPv4 address assigned. Also extended logging message about discarding
packets with invalid hlen with information about relevant interface name.
[ISC-Bugs #22409]
This commit is contained in:
Tomek Mrugalski
2011-05-10 11:24:44 +00:00
parent fc06ee4f46
commit 1185c76639
2 changed files with 13 additions and 2 deletions
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10
relay/dhcrelay.c
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@@ -590,7 +590,13 @@ do_relay4(struct interface_info *ip, struct dhcp_packet *packet,
struct hardware hto, *htop;
if (packet->hlen > sizeof packet->chaddr) {
log_info("Discarding packet with invalid hlen.");
log_info("Discarding packet with invalid hlen, received on "
"%s interface.", ip->name);
return;
}
if (ip->address_count < 1 || ip->addresses == NULL) {
log_info("Discarding packet received on %s interface that "
"has no IPv4 address assigned.", ip->name);
return;
}
@@ -1293,7 +1299,7 @@ setup_streams(void) {
break;
}
if (i == dp->ifp->v6address_count)
log_fatal("Can't find link address for interface '%s'.",
log_fatal("Interface %s does not have global IPv6 address assigned.",
dp->ifp->name);
if (!link_is_set)
memcpy(&dp->link.sin6_addr,