diff options
| -rw-r--r-- | net/ipv4/udp.c | 95 |
1 files changed, 48 insertions, 47 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 86368832d481..21901d2c5324 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -175,7 +175,8 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum, ; } result = best; - for(i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++, result += UDP_HTABLE_SIZE) { + for (i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; + i++, result += UDP_HTABLE_SIZE) { if (result > sysctl_local_port_range[1]) result = sysctl_local_port_range[0] + ((result - sysctl_local_port_range[0]) & @@ -270,10 +271,10 @@ static struct sock *__udp4_lib_lookup(__be32 saddr, __be16 sport, continue; score+=2; } - if(score == 9) { + if (score == 9) { result = sk; break; - } else if(score > badness) { + } else if (score > badness) { result = sk; badness = score; } @@ -765,38 +766,38 @@ out: int udp_ioctl(struct sock *sk, int cmd, unsigned long arg) { - switch(cmd) + switch (cmd) { + case SIOCOUTQ: { - case SIOCOUTQ: - { - int amount = atomic_read(&sk->sk_wmem_alloc); - return put_user(amount, (int __user *)arg); - } + int amount = atomic_read(&sk->sk_wmem_alloc); + return put_user(amount, (int __user *)arg); + } - case SIOCINQ: - { - struct sk_buff *skb; - unsigned long amount; - - amount = 0; - spin_lock_bh(&sk->sk_receive_queue.lock); - skb = skb_peek(&sk->sk_receive_queue); - if (skb != NULL) { - /* - * We will only return the amount - * of this packet since that is all - * that will be read. - */ - amount = skb->len - sizeof(struct udphdr); - } - spin_unlock_bh(&sk->sk_receive_queue.lock); - return put_user(amount, (int __user *)arg); + case SIOCINQ: + { + struct sk_buff *skb; + unsigned long amount; + + amount = 0; + spin_lock_bh(&sk->sk_receive_queue.lock); + skb = skb_peek(&sk->sk_receive_queue); + if (skb != NULL) { + /* + * We will only return the amount + * of this packet since that is all + * that will be read. + */ + amount = skb->len - sizeof(struct udphdr); } + spin_unlock_bh(&sk->sk_receive_queue.lock); + return put_user(amount, (int __user *)arg); + } - default: - return -ENOIOCTLCMD; + default: + return -ENOIOCTLCMD; } - return(0); + + return 0; } /* @@ -958,7 +959,7 @@ static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb) /* Check if this is a keepalive packet. If so, eat it. */ if (len == 1 && udpdata[0] == 0xff) { return 0; - } else if (len > sizeof(struct ip_esp_hdr) && udpdata32[0] != 0 ) { + } else if (len > sizeof(struct ip_esp_hdr) && udpdata32[0] != 0) { /* ESP Packet without Non-ESP header */ len = sizeof(struct udphdr); } else @@ -1141,10 +1142,10 @@ static int __udp4_lib_mcast_deliver(struct sk_buff *skb, sknext = udp_v4_mcast_next(sk_next(sk), uh->dest, daddr, uh->source, saddr, dif); - if(sknext) + if (sknext) skb1 = skb_clone(skb, GFP_ATOMIC); - if(skb1) { + if (skb1) { int ret = udp_queue_rcv_skb(sk, skb1); if (ret > 0) /* we should probably re-process instead @@ -1152,7 +1153,7 @@ static int __udp4_lib_mcast_deliver(struct sk_buff *skb, kfree_skb(skb1); } sk = sknext; - } while(sknext); + } while (sknext); } else kfree_skb(skb); read_unlock(&udp_hash_lock); @@ -1230,7 +1231,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], if (udp4_csum_init(skb, uh, proto)) goto csum_error; - if(rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST)) + if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST)) return __udp4_lib_mcast_deliver(skb, uh, saddr, daddr, udptable); sk = __udp4_lib_lookup(saddr, uh->source, daddr, uh->dest, @@ -1264,7 +1265,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], * don't wanna listen. Ignore it. */ kfree_skb(skb); - return(0); + return 0; short_packet: LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: short packet: From %u.%u.%u.%u:%u %d/%d to %u.%u.%u.%u:%u\n", @@ -1292,7 +1293,7 @@ csum_error: drop: UDP_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE); kfree_skb(skb); - return(0); + return 0; } __inline__ int udp_rcv(struct sk_buff *skb) @@ -1319,13 +1320,13 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, int val; int err = 0; - if(optlen<sizeof(int)) + if (optlen<sizeof(int)) return -EINVAL; if (get_user(val, (int __user *)optval)) return -EFAULT; - switch(optname) { + switch (optname) { case UDP_CORK: if (val != 0) { up->corkflag = 1; @@ -1379,7 +1380,7 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, default: err = -ENOPROTOOPT; break; - }; + } return err; } @@ -1410,15 +1411,15 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname, struct udp_sock *up = udp_sk(sk); int val, len; - if(get_user(len,optlen)) + if (get_user(len,optlen)) return -EFAULT; len = min_t(unsigned int, len, sizeof(int)); - if(len < 0) + if (len < 0) return -EINVAL; - switch(optname) { + switch (optname) { case UDP_CORK: val = up->corkflag; break; @@ -1439,11 +1440,11 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname, default: return -ENOPROTOOPT; - }; + } - if(put_user(len, optlen)) + if (put_user(len, optlen)) return -EFAULT; - if(copy_to_user(optval, &val,len)) + if (copy_to_user(optval, &val,len)) return -EFAULT; return 0; } @@ -1575,7 +1576,7 @@ static struct sock *udp_get_idx(struct seq_file *seq, loff_t pos) struct sock *sk = udp_get_first(seq); if (sk) - while(pos && (sk = udp_get_next(seq, sk)) != NULL) + while (pos && (sk = udp_get_next(seq, sk)) != NULL) --pos; return pos ? NULL : sk; } |