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batman-adv: only add recordroute information to icmp request/reply
Adding host information for record route is only required for ICMP requests and replys, and should not be added to just any (future?) packet type. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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1 changed files with 3 additions and 1 deletions
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@ -379,7 +379,9 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
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icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
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/* add record route information if not full */
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if ((hdr_size == sizeof(struct batadv_icmp_packet_rr)) &&
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if ((icmp_packet->msg_type == BATADV_ECHO_REPLY ||
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icmp_packet->msg_type == BATADV_ECHO_REQUEST) &&
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(hdr_size == sizeof(struct batadv_icmp_packet_rr)) &&
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(icmp_packet->rr_cur < BATADV_RR_LEN)) {
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memcpy(&(icmp_packet->rr[icmp_packet->rr_cur]),
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ethhdr->h_dest, ETH_ALEN);
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