commits December 2019

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[batman-adv] maint's head updated: batman-adv: Fix DAT candidate selection on little endian systems (728aea06)

by postmaster＠open-mesh.org

Repository : ssh://git@open-mesh.org/batman-adv Branch 'maint' now includes: 728aea06 batman-adv: Fix DAT candidate selection on little endian systems

3 years, 3 months

[batman-adv] master: Merge branch 'maint' (ade59690)

by postmaster＠open-mesh.org

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit ade596904c0c4beb36ea05bc1b067363d86cc3e7 Merge: 890c6748 728aea06 Author: Sven Eckelmann <sven(a)narfation.org> Date: Wed Dec 4 06:27:27 2019 +0100 Merge branch 'maint' >--------------------------------------------------------------- ade596904c0c4beb36ea05bc1b067363d86cc3e7 net/batman-adv/distributed-arp-table.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

3 years, 3 months

[batman-adv] master: batman-adv: Fix DAT candidate selection on little endian systems (728aea06)

by postmaster＠open-mesh.org

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit 728aea06f38e0e4d70f4f7d43698187f7f7055c5 Author: Sven Eckelmann <sven(a)narfation.org> Date: Thu Nov 28 12:43:49 2019 +0100 batman-adv: Fix DAT candidate selection on little endian systems The distributed arp table is using a DHT to store and retrieve MAC address information for an IP address. This is done using unicast messages to selected peers. The potential peers are looked up using the IP address and the VID. While the IP address is always stored in big endian byte order, it is not the case of the VID. It can (depending on the host system) either be big endian or little endian. The host must therefore always convert it to big endian to ensure that all devices calculate the same peers for the same lookup data. Fixes: 3e26722bc9f2 ("batman-adv: make the Distributed ARP Table vlan aware") Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Acked-by: Antonio Quartulli <a(a)unstable.cc> >--------------------------------------------------------------- 728aea06f38e0e4d70f4f7d43698187f7f7055c5 net/batman-adv/distributed-arp-table.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c index b0af3a11..ec7bf5a4 100644 --- a/net/batman-adv/distributed-arp-table.c +++ b/net/batman-adv/distributed-arp-table.c @@ -285,6 +285,7 @@ static u32 batadv_hash_dat(const void *data, u32 size) u32 hash = 0; const struct batadv_dat_entry *dat = data; const unsigned char *key; + __be16 vid; u32 i; key = (const unsigned char *)&dat->ip; @@ -294,7 +295,8 @@ static u32 batadv_hash_dat(const void *data, u32 size) hash ^= (hash >> 6); } - key = (const unsigned char *)&dat->vid; + vid = htons(dat->vid); + key = (__force const unsigned char *)&vid; for (i = 0; i < sizeof(dat->vid); i++) { hash += key[i]; hash += (hash << 10);

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commits December 2019