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authorSven Eckelmann <sven@narfation.org>2011-11-20 14:47:38 (GMT)
committerMarek Lindner <lindner_marek@yahoo.de>2012-02-16 18:50:19 (GMT)
commit76543d14aec6ce5cb3fc7be9b39c50fcebd2043b (patch)
tree4f739cfadaee8ec9a06d7855956f3accc1dcc2be /net/batman-adv/translation-table.c
parent17071578888c7c18709e48e74fae228c04581b9a (diff)
downloadlinux-fsl-qoriq-76543d14aec6ce5cb3fc7be9b39c50fcebd2043b.tar.xz
batman-adv: Explicitly mark the common header structure
All batman-adv packets have a common 3 byte header. It can be used to share some code between different code paths, but it was never explicit stated that this header has to be always the same for all packets. Therefore, new code changes always have the problem that they may accidently introduce regressions by moving some elements around. A new structure is introduced that contains the common header and makes it easier visible that these 3 bytes have to be the same for all on-wire packets. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Diffstat (limited to 'net/batman-adv/translation-table.c')
-rw-r--r--net/batman-adv/translation-table.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index c632475..bc518fc 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1135,11 +1135,11 @@ static int send_tt_request(struct bat_priv *bat_priv,
tt_request = (struct tt_query_packet *)skb_put(skb,
sizeof(struct tt_query_packet));
- tt_request->packet_type = BAT_TT_QUERY;
- tt_request->version = COMPAT_VERSION;
+ tt_request->header.packet_type = BAT_TT_QUERY;
+ tt_request->header.version = COMPAT_VERSION;
memcpy(tt_request->src, primary_if->net_dev->dev_addr, ETH_ALEN);
memcpy(tt_request->dst, dst_orig_node->orig, ETH_ALEN);
- tt_request->ttl = TTL;
+ tt_request->header.ttl = TTL;
tt_request->ttvn = ttvn;
tt_request->tt_data = tt_crc;
tt_request->flags = TT_REQUEST;
@@ -1265,9 +1265,9 @@ static bool send_other_tt_response(struct bat_priv *bat_priv,
tt_response = (struct tt_query_packet *)skb->data;
}
- tt_response->packet_type = BAT_TT_QUERY;
- tt_response->version = COMPAT_VERSION;
- tt_response->ttl = TTL;
+ tt_response->header.packet_type = BAT_TT_QUERY;
+ tt_response->header.version = COMPAT_VERSION;
+ tt_response->header.ttl = TTL;
memcpy(tt_response->src, req_dst_orig_node->orig, ETH_ALEN);
memcpy(tt_response->dst, tt_request->src, ETH_ALEN);
tt_response->flags = TT_RESPONSE;
@@ -1382,9 +1382,9 @@ static bool send_my_tt_response(struct bat_priv *bat_priv,
tt_response = (struct tt_query_packet *)skb->data;
}
- tt_response->packet_type = BAT_TT_QUERY;
- tt_response->version = COMPAT_VERSION;
- tt_response->ttl = TTL;
+ tt_response->header.packet_type = BAT_TT_QUERY;
+ tt_response->header.version = COMPAT_VERSION;
+ tt_response->header.ttl = TTL;
memcpy(tt_response->src, primary_if->net_dev->dev_addr, ETH_ALEN);
memcpy(tt_response->dst, tt_request->src, ETH_ALEN);
tt_response->flags = TT_RESPONSE;
@@ -1671,9 +1671,9 @@ void send_roam_adv(struct bat_priv *bat_priv, uint8_t *client,
roam_adv_packet = (struct roam_adv_packet *)skb_put(skb,
sizeof(struct roam_adv_packet));
- roam_adv_packet->packet_type = BAT_ROAM_ADV;
- roam_adv_packet->version = COMPAT_VERSION;
- roam_adv_packet->ttl = TTL;
+ roam_adv_packet->header.packet_type = BAT_ROAM_ADV;
+ roam_adv_packet->header.version = COMPAT_VERSION;
+ roam_adv_packet->header.ttl = TTL;
primary_if = primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;