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Zero packet buffers before building output, to reduce risk of information leakage.

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This commit is contained in:
Simon Kelley
2016-07-22 20:56:01 +01:00
parent cd2ddb9904
commit fa78573778
8 changed files with 30 additions and 6 deletions
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6
src/rfc3315.c
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@@ -89,7 +89,7 @@ unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *if
for (vendor = daemon->dhcp_vendors; vendor; vendor = vendor->next)
vendor->netid.next = &vendor->netid;
save_counter(0);
reset_counter();
state.context = context;
state.interface = interface;
state.iface_name = iface_name;
@@ -2084,7 +2084,7 @@ void relay_upstream6(struct dhcp_relay *relay, ssize_t sz,
if (hopcount > 32)
return;
save_counter(0);
reset_counter();
if ((header = put_opt6(NULL, 34)))
{
@@ -2161,7 +2161,7 @@ unsigned short relay_reply6(struct sockaddr_in6 *peer, ssize_t sz, char *arrival
(!relay->interface || wildcard_match(relay->interface, arrival_interface)))
break;
save_counter(0);
reset_counter();
if (relay)
{