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| author | John Heffner <jheffner@psc.edu> | 2006-03-21 02:53:41 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-21 02:53:41 +0100 |
| commit | 5d424d5a674f782d0659a3b66d951f412901faee (patch) | |
| tree | 579871172044e02e626a90388d19ec55cf2d1fc4 /include/net/inet_connection_sock.h | |
| parent | [BNX2]: Update version (diff) | |
| download | linux-5d424d5a674f782d0659a3b66d951f412901faee.tar.xz linux-5d424d5a674f782d0659a3b66d951f412901faee.zip | |
[TCP]: MTU probing
Implementation of packetization layer path mtu discovery for TCP, based on
the internet-draft currently found at
<http://www.ietf.org/internet-drafts/draft-ietf-pmtud-method-05.txt>.
Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inet_connection_sock.h')
| -rw-r--r-- | include/net/inet_connection_sock.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index fa587c94e9d0..b3abe33f4e5f 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -72,6 +72,7 @@ struct inet_connection_sock_af_ops { * @icsk_probes_out: unanswered 0 window probes * @icsk_ext_hdr_len: Network protocol overhead (IP/IPv6 options) * @icsk_ack: Delayed ACK control data + * @icsk_mtup; MTU probing control data */ struct inet_connection_sock { /* inet_sock has to be the first member! */ @@ -104,6 +105,18 @@ struct inet_connection_sock { __u16 last_seg_size; /* Size of last incoming segment */ __u16 rcv_mss; /* MSS used for delayed ACK decisions */ } icsk_ack; + struct { + int enabled; + + /* Range of MTUs to search */ + int search_high; + int search_low; + + /* Information on the current probe. */ + int probe_size; + __u32 probe_seq_start; + __u32 probe_seq_end; + } icsk_mtup; u32 icsk_ca_priv[16]; #define ICSK_CA_PRIV_SIZE (16 * sizeof(u32)) }; |