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authorAntonio Quartulli <ordex@autistici.org>2012-07-05 23:38:29 +0200
committerAntonio Quartulli <ordex@autistici.org>2012-08-23 14:20:22 +0200
commit30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59 (patch)
treedf702e35ab213c98ae4090343e28c1afbd17e207 /net/batman-adv/main.h
parentc67893d17a6bbd16328a1ee38ab0cb460511014a (diff)
downloadlinux-30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59.tar.bz2
batman-adv: detect not yet announced clients
With the current TT mechanism a new client joining the network is not immediately able to communicate with other hosts because its MAC address has not been announced yet. This situation holds until the first OGM containing its joining event will be spread over the mesh network. This behaviour can be acceptable in networks where the originator interval is a small value (e.g. 1sec) but if that value is set to an higher time (e.g. 5secs) the client could suffer from several malfunctions like DHCP client timeouts, etc. This patch adds an early detection mechanism that makes nodes in the network able to recognise "not yet announced clients" by means of the broadcast packets they emitted on connection (e.g. ARP or DHCP request). The added client will then be confirmed upon receiving the OGM claiming it or purged if such OGM is not received within a fixed amount of time. Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Diffstat (limited to 'net/batman-adv/main.h')
-rw-r--r--net/batman-adv/main.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 574fca1bd434..61a0cfd3ceb4 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -43,6 +43,7 @@
#define BATADV_PURGE_TIMEOUT 200000 /* 200 seconds */
#define BATADV_TT_LOCAL_TIMEOUT 3600000 /* in milliseconds */
#define BATADV_TT_CLIENT_ROAM_TIMEOUT 600000 /* in milliseconds */
+#define BATADV_TT_CLIENT_TEMP_TIMEOUT 600000 /* in milliseconds */
/* sliding packet range of received originator messages in sequence numbers
* (should be a multiple of our word size)
*/