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| author | Michael Brown | 2013-07-12 03:10:03 +0200 |
|---|---|---|
| committer | Michael Brown | 2013-07-12 03:20:05 +0200 |
| commit | 18d0818f94c6750c680cba582932ae16659c0c38 (patch) | |
| tree | d2083540b2755e44a2d0a06534e4c9f557386ea1 /src/net | |
| parent | [autoboot] Use next-server from filename's settings block (diff) | |
| download | ipxe-18d0818f94c6750c680cba582932ae16659c0c38.tar.gz ipxe-18d0818f94c6750c680cba582932ae16659c0c38.tar.xz ipxe-18d0818f94c6750c680cba582932ae16659c0c38.zip | |
[tcp] Do not send RST for unrecognised connections
On large networks with substantial numbers of monitoring agents,
unwanted TCP connection attempts may end up flooding iPXE's ARP cache.
Fix by silently dropping packets received for unrecognised TCP
connections. This should not cause problems, since many firewalls
will also silently drop any such packets.
Reported-by: Jarrod Johnson <jarrod.b.johnson@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net')
| -rw-r--r-- | src/net/tcp.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/src/net/tcp.c b/src/net/tcp.c index 938edd57..8432d559 100644 --- a/src/net/tcp.c +++ b/src/net/tcp.c @@ -1218,7 +1218,6 @@ static int tcp_rx ( struct io_buffer *iobuf, /* If no connection was found, send RST */ if ( ! tcp ) { - tcp_xmit_reset ( tcp, st_src, tcphdr ); rc = -ENOTCONN; goto discard; } |