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| author |   Steven Whitehouse <swhiteho@redhat.com> | 2006-11-07 15:09:17 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2006-11-07 15:10:17 -0800 |
| commit | 375d9d71838970030c8e0bf0ac2abcc1a3487df8 (patch) | |
| tree | 8c4cb7363852c41ed873fd245d44c155c2b2bed9 /net/decnet/af_decnet.c | |
| parent | [TG3]: Fix array overrun in tg3_read_partno(). (diff) | |
| download | linux-dev-375d9d71838970030c8e0bf0ac2abcc1a3487df8.tar.xz linux-dev-375d9d71838970030c8e0bf0ac2abcc1a3487df8.zip | |
[DECNET]: Endianess fixes (try #2)
Here are some fixes to endianess problems spotted by Al Viro.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/af_decnet.c')
| -rw-r--r-- | net/decnet/af_decnet.c | 25 |
1 files changed, 13 insertions, 12 deletions
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) |