diff options
| author | Anthony Liguori <aliguori@us.ibm.com> | 2012-02-15 18:40:26 -0600 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-02-15 18:40:26 -0600 |
| commit | 006c891fc9d4f044ad3f41b6e019442523b45a54 (patch) | |
| tree | 5126f84a0eb0411daf55951ec45656a3b242404d /slirp/ip_icmp.c | |
| parent | 7718564ba1295f35188a5fb3ac8633c29d43b166 (diff) | |
| parent | 6612db12d56c68fff3e56ca4ea8c41d9d55c12e4 (diff) | |
Merge remote-tracking branch 'kiszka/queues/slirp' into staging
* kiszka/queues/slirp:
slirp: Prevent sending ICMP error replies to source-only addresses
slirp: Remove unused variable and unused code
Diffstat (limited to 'slirp/ip_icmp.c')
| -rw-r--r-- | slirp/ip_icmp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/slirp/ip_icmp.c b/slirp/ip_icmp.c index 4b43994dbc..5dbf21da9d 100644 --- a/slirp/ip_icmp.c +++ b/slirp/ip_icmp.c @@ -262,6 +262,11 @@ icmp_error(struct mbuf *msrc, u_char type, u_char code, int minsize, #endif if(ip->ip_off & IP_OFFMASK) goto end_error; /* Only reply to fragment 0 */ + /* Do not reply to source-only IPs */ + if ((ip->ip_src.s_addr & htonl(~(0xf << 28))) == 0) { + goto end_error; + } + shlen=ip->ip_hl << 2; s_ip_len=ip->ip_len; if(ip->ip_p == IPPROTO_ICMP) { |