diff options
| author | Yann Bordenave <meow@meowstars.org> | 2016-03-15 10:31:19 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-03-15 10:35:04 +0100 |
| commit | fc6c9257c6dd47316a1c55d356bcd89bdc5fd642 (patch) | |
| tree | a3a46ef4bd2c113b7a90167c7b41b6dd1c81a02c /slirp/ip6_input.c | |
| parent | de40abfecfe17f79870a66acfc1f87a53fc066ca (diff) | |
slirp: Adding ICMPv6 error sending
Adding icmp6_send_error to send ICMPv6 Error messages. This function is
simpler than the v4 version.
Adding some calls in various functions to send ICMP errors, when a
received packet is too big, or when its hop limit is 0.
Signed-off-by: Yann Bordenave <meow@meowstars.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'slirp/ip6_input.c')
| -rw-r--r-- | slirp/ip6_input.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/slirp/ip6_input.c b/slirp/ip6_input.c index ca0007c14c..b6a438d7af 100644 --- a/slirp/ip6_input.c +++ b/slirp/ip6_input.c @@ -39,9 +39,14 @@ void ip6_input(struct mbuf *m) goto bad; } + if (ntohs(ip6->ip_pl) > IF_MTU) { + icmp6_send_error(m, ICMP6_TOOBIG, 0); + goto bad; + } + /* check ip_ttl for a correct ICMP reply */ if (ip6->ip_hl == 0) { - /*icmp_send_error(m, ICMP_TIMXCEED,ICMP_TIMXCEED_INTRANS, 0,"ttl");*/ + icmp6_send_error(m, ICMP6_TIMXCEED, ICMP6_TIMXCEED_INTRANS); goto bad; } @@ -50,10 +55,10 @@ void ip6_input(struct mbuf *m) */ switch (ip6->ip_nh) { case IPPROTO_TCP: - /*tcp_input(m, hlen, (struct socket *)NULL);*/ + icmp6_send_error(m, ICMP6_UNREACH, ICMP6_UNREACH_NO_ROUTE); break; case IPPROTO_UDP: - /*udp_input(m, hlen);*/ + icmp6_send_error(m, ICMP6_UNREACH, ICMP6_UNREACH_NO_ROUTE); break; case IPPROTO_ICMPV6: icmp6_input(m); |