From 375d9d71838970030c8e0bf0ac2abcc1a3487df8 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Tue, 7 Nov 2006 15:09:17 -0800 Subject: [DECNET]: Endianess fixes (try #2) Here are some fixes to endianess problems spotted by Al Viro. Signed-off-by: Steven Whitehouse Signed-off-by: David S. Miller --- net/decnet/af_decnet.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'net/decnet/af_decnet.c') diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 3456cd331835..21f20f21dd32 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -166,7 +166,7 @@ static struct hlist_head *dn_find_list(struct sock *sk) if (scp->addr.sdn_flags & SDF_WILD) return hlist_empty(&dn_wild_sk) ? &dn_wild_sk : NULL; - return &dn_sk_hash[scp->addrloc & DN_SK_HASH_MASK]; + return &dn_sk_hash[dn_ntohs(scp->addrloc) & DN_SK_HASH_MASK]; } /* @@ -180,7 +180,7 @@ static int check_port(__le16 port) if (port == 0) return -1; - sk_for_each(sk, node, &dn_sk_hash[port & DN_SK_HASH_MASK]) { + sk_for_each(sk, node, &dn_sk_hash[dn_ntohs(port) & DN_SK_HASH_MASK]) { struct dn_scp *scp = DN_SK(sk); if (scp->addrloc == port) return -1; @@ -194,12 +194,12 @@ static unsigned short port_alloc(struct sock *sk) static unsigned short port = 0x2000; unsigned short i_port = port; - while(check_port(++port) != 0) { + while(check_port(dn_htons(++port)) != 0) { if (port == i_port) return 0; } - scp->addrloc = port; + scp->addrloc = dn_htons(port); return 1; } @@ -418,7 +418,7 @@ struct sock *dn_find_by_skb(struct sk_buff *skb) struct dn_scp *scp; read_lock(&dn_hash_lock); - sk_for_each(sk, node, &dn_sk_hash[cb->dst_port & DN_SK_HASH_MASK]) { + sk_for_each(sk, node, &dn_sk_hash[dn_ntohs(cb->dst_port) & DN_SK_HASH_MASK]) { scp = DN_SK(sk); if (cb->src != dn_saddr2dn(&scp->peer)) continue; @@ -1016,13 +1016,14 @@ static void dn_access_copy(struct sk_buff *skb, struct accessdata_dn *acc) static void dn_user_copy(struct sk_buff *skb, struct optdata_dn *opt) { - unsigned char *ptr = skb->data; - - opt->opt_optl = *ptr++; - opt->opt_status = 0; - memcpy(opt->opt_data, ptr, opt->opt_optl); - skb_pull(skb, dn_ntohs(opt->opt_optl) + 1); - + unsigned char *ptr = skb->data; + u16 len = *ptr++; /* yes, it's 8bit on the wire */ + + BUG_ON(len > 16); /* we've checked the contents earlier */ + opt->opt_optl = dn_htons(len); + opt->opt_status = 0; + memcpy(opt->opt_data, ptr, len); + skb_pull(skb, len + 1); } static struct sk_buff *dn_wait_for_connect(struct sock *sk, long *timeo) -- cgit v1.2.3-58-ga151