diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2011-07-20 12:20:13 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2011-07-23 10:19:49 -0500 |
| commit | 12b513d837c9da5277390ddaf98ca0058339977a (patch) | |
| tree | 57d4e937818492effc1f31402dc830b1ca0b206c /slirp/ip_input.c | |
| parent | 80f52a6694423da7a40e2ec39e14a5817184c7ef (diff) | |
| download | qemu-12b513d837c9da5277390ddaf98ca0058339977a.tar.gz | |
slirp: Fix restricted mode
This aligns the code to what the documentation claims: Allow everything
but requests that would have to be routed outside of the virtual LAN.
So we need to drop the unneeded IP-level filter, allow TFTP requests,
and add the missing protocol-level filter to ICMP.
CC: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'slirp/ip_input.c')
| -rw-r--r-- | slirp/ip_input.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/slirp/ip_input.c b/slirp/ip_input.c index 768ab0cd49..2ff6adbc4c 100644 --- a/slirp/ip_input.c +++ b/slirp/ip_input.c @@ -118,27 +118,6 @@ ip_input(struct mbuf *m) goto bad; } - if (slirp->restricted) { - if ((ip->ip_dst.s_addr & slirp->vnetwork_mask.s_addr) == - slirp->vnetwork_addr.s_addr) { - if (ip->ip_dst.s_addr == 0xffffffff && ip->ip_p != IPPROTO_UDP) - goto bad; - } else { - uint32_t inv_mask = ~slirp->vnetwork_mask.s_addr; - struct ex_list *ex_ptr; - - if ((ip->ip_dst.s_addr & inv_mask) == inv_mask) { - goto bad; - } - for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) - if (ex_ptr->ex_addr.s_addr == ip->ip_dst.s_addr) - break; - - if (!ex_ptr) - goto bad; - } - } - /* Should drop packet if mbuf too long? hmmm... */ if (m->m_len > ip->ip_len) m_adj(m, ip->ip_len - m->m_len); |