The following commit has been merged in the master branch: commit e62e4647f4bcae96ebf7eb887dba2d8410d9414f Author: Al Viro viro@ZenIV.linux.org.uk Date: Sun Apr 22 07:46:29 2012 +0100
batman-adv: keep batman_ogm_packet ->seqno net-endian all along
Signed-off-by: Al Viro viro@zeniv.linux.org.uk
diff --git a/bat_iv_ogm.c b/bat_iv_ogm.c index 2b48b82..8b3b77b 100644 --- a/bat_iv_ogm.c +++ b/bat_iv_ogm.c @@ -34,11 +34,11 @@ static struct neigh_node *bat_iv_ogm_neigh_new(struct hard_iface *hard_iface, const uint8_t *neigh_addr, struct orig_node *orig_node, struct orig_node *orig_neigh, - uint32_t seqno) + __be32 seqno) { struct neigh_node *neigh_node;
- neigh_node = neigh_node_new(hard_iface, neigh_addr, seqno); + neigh_node = neigh_node_new(hard_iface, neigh_addr, ntohl(seqno)); if (!neigh_node) goto out;
@@ -547,7 +547,6 @@ static void bat_iv_ogm_forward(struct orig_node *orig_node, "Forwarding packet: tq: %i, ttl: %i\n", batman_ogm_packet->tq, batman_ogm_packet->header.ttl);
- batman_ogm_packet->seqno = htonl(batman_ogm_packet->seqno); batman_ogm_packet->tt_crc = htons(batman_ogm_packet->tt_crc);
/* switch of primaries first hop flag when forwarding */ @@ -872,13 +871,14 @@ static int bat_iv_ogm_update_seqnos(const struct ethhdr *ethhdr, int32_t seq_diff; int need_update = 0; int set_mark, ret = -1; + uint32_t seqno = ntohl(batman_ogm_packet->seqno);
orig_node = get_orig_node(bat_priv, batman_ogm_packet->orig); if (!orig_node) return 0;
spin_lock_bh(&orig_node->ogm_cnt_lock); - seq_diff = batman_ogm_packet->seqno - orig_node->last_real_seqno; + seq_diff = seqno - orig_node->last_real_seqno;
/* signalize caller that the packet is to be dropped. */ if (!hlist_empty(&orig_node->neigh_list) && @@ -892,7 +892,7 @@ static int bat_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
is_duplicate |= bat_test_bit(tmp_neigh_node->real_bits, orig_node->last_real_seqno, - batman_ogm_packet->seqno); + seqno);
if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) && (tmp_neigh_node->if_incoming == if_incoming)) @@ -914,8 +914,8 @@ static int bat_iv_ogm_update_seqnos(const struct ethhdr *ethhdr, if (need_update) { bat_dbg(DBG_BATMAN, bat_priv, "updating last_seqno: old %u, new %u\n", - orig_node->last_real_seqno, batman_ogm_packet->seqno); - orig_node->last_real_seqno = batman_ogm_packet->seqno; + orig_node->last_real_seqno, seqno); + orig_node->last_real_seqno = seqno; }
ret = is_duplicate; @@ -971,7 +971,7 @@ static void bat_iv_ogm_process(const struct ethhdr *ethhdr, "Received BATMAN packet via NB: %pM, IF: %s [%pM] (from OG: %pM, via prev OG: %pM, seqno %u, ttvn %u, crc %u, changes %u, td %d, TTL %d, V %d, IDF %d)\n", ethhdr->h_source, if_incoming->net_dev->name, if_incoming->net_dev->dev_addr, batman_ogm_packet->orig, - batman_ogm_packet->prev_sender, batman_ogm_packet->seqno, + batman_ogm_packet->prev_sender, ntohl(batman_ogm_packet->seqno), batman_ogm_packet->ttvn, batman_ogm_packet->tt_crc, batman_ogm_packet->tt_num_changes, batman_ogm_packet->tq, batman_ogm_packet->header.ttl, @@ -1043,7 +1043,7 @@ static void bat_iv_ogm_process(const struct ethhdr *ethhdr, word = &(orig_neigh_node->bcast_own[offset]); bat_set_bit(word, if_incoming_seqno - - batman_ogm_packet->seqno - 2); + ntohl(batman_ogm_packet->seqno) - 2); orig_neigh_node->bcast_own_sum[if_incoming->if_num] = bitmap_weight(word, TQ_LOCAL_WINDOW_SIZE); spin_unlock_bh(&orig_neigh_node->ogm_cnt_lock); @@ -1136,7 +1136,7 @@ static void bat_iv_ogm_process(const struct ethhdr *ethhdr, * seqno and similar ttl as the non-duplicate */ if (is_bidirectional && (!is_duplicate || - ((orig_node->last_real_seqno == batman_ogm_packet->seqno) && + ((orig_node->last_real_seqno == ntohl(batman_ogm_packet->seqno)) && (orig_node->last_ttl - 3 <= batman_ogm_packet->header.ttl)))) bat_iv_ogm_orig_update(bat_priv, orig_node, ethhdr, batman_ogm_packet, if_incoming, @@ -1219,7 +1219,6 @@ static int bat_iv_ogm_receive(struct sk_buff *skb, do { /* network to host order for our 32bit seqno and the orig_interval */ - batman_ogm_packet->seqno = ntohl(batman_ogm_packet->seqno); batman_ogm_packet->tt_crc = ntohs(batman_ogm_packet->tt_crc);
tt_buff = packet_buff + buff_pos + BATMAN_OGM_HLEN; diff --git a/packet.h b/packet.h index 1df6210..f39556b 100644 --- a/packet.h +++ b/packet.h @@ -125,7 +125,7 @@ struct batman_header { struct batman_ogm_packet { struct batman_header header; uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ - uint32_t seqno; + __be32 seqno; uint8_t orig[ETH_ALEN]; uint8_t prev_sender[ETH_ALEN]; uint8_t gw_flags; /* flags related to gateway class */