diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 100 |
1 files changed, 50 insertions, 50 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 8b54c68a0d12..2a246de6a671 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -20,8 +20,8 @@ * for udp at least is 'valid'. * Alan Cox : Fixed icmp handling properly * Alan Cox : Correct error for oversized datagrams - * Alan Cox : Tidied select() semantics. - * Alan Cox : udp_err() fixed properly, also now + * Alan Cox : Tidied select() semantics. + * Alan Cox : udp_err() fixed properly, also now * select and read wake correctly on errors * Alan Cox : udp_send verify_area moved to avoid mem leak * Alan Cox : UDP can count its memory @@ -56,7 +56,7 @@ * does have a high hit rate. * Olaf Kirch : Don't linearise iovec on sendmsg. * Andi Kleen : Some cleanups, cache destination entry - * for connect. + * for connect. * Vitaly E. Lavrov : Transparent proxy revived after year coma. * Melvin Smith : Check msg_name not msg_namelen in sendto(), * return ENOTCONN for unconnected sockets (POSIX) @@ -77,7 +77,7 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ - + #include <asm/system.h> #include <asm/uaccess.h> #include <asm/ioctls.h> @@ -306,17 +306,17 @@ static inline struct sock *udp_v4_mcast_next(struct sock *sk, if (!ip_mc_sf_allow(s, loc_addr, rmt_addr, dif)) continue; goto found; - } + } s = NULL; found: - return s; + return s; } /* * This routine is called by the ICMP module when it gets some * sort of error condition. If err < 0 then the socket should * be closed and the error returned to the user. If err > 0 - * it's just the icmp type << 8 | icmp code. + * it's just the icmp type << 8 | icmp code. * Header points to the ip header of the error packet. We move * on past this. Then (as it used to claim before adjustment) * header points to the first 8 bytes of the udp header. We need @@ -338,7 +338,7 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct hlist_head udptable[]) skb->dev->ifindex, udptable ); if (sk == NULL) { ICMP_INC_STATS_BH(ICMP_MIB_INERRORS); - return; /* No socket for error */ + return; /* No socket for error */ } err = 0; @@ -374,7 +374,7 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct hlist_head udptable[]) } /* - * RFC1122: OK. Passes ICMP errors back to application, as per + * RFC1122: OK. Passes ICMP errors back to application, as per * 4.1.3.3. */ if (!inet->recverr) { @@ -524,7 +524,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (len > 0xFFFF) return -EMSGSIZE; - /* + /* * Check the flags. */ @@ -536,7 +536,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (up->pending) { /* * There are pending frames. - * The socket lock must be held while it's corked. + * The socket lock must be held while it's corked. */ lock_sock(sk); if (likely(up->pending)) { @@ -544,14 +544,14 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, release_sock(sk); return -EINVAL; } - goto do_append_data; + goto do_append_data; } release_sock(sk); } ulen += sizeof(struct udphdr); /* - * Get and verify the address. + * Get and verify the address. */ if (msg->msg_name) { struct sockaddr_in * usin = (struct sockaddr_in*)msg->msg_name; @@ -575,7 +575,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, Route will not be used, if at least one option is set. */ connected = 1; - } + } ipc.addr = inet->saddr; ipc.oif = sk->sk_bound_dev_if; @@ -601,7 +601,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, } tos = RT_TOS(inet->tos); if (sock_flag(sk, SOCK_LOCALROUTE) || - (msg->msg_flags & MSG_DONTROUTE) || + (msg->msg_flags & MSG_DONTROUTE) || (ipc.opt && ipc.opt->is_strictroute)) { tos |= RTO_ONLINK; connected = 0; @@ -761,10 +761,10 @@ out: /* * IOCTL requests applicable to the UDP protocol */ - + int udp_ioctl(struct sock *sk, int cmd, unsigned long arg) { - switch(cmd) + switch(cmd) { case SIOCOUTQ: { @@ -804,11 +804,11 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg) */ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, - size_t len, int noblock, int flags, int *addr_len) + size_t len, int noblock, int flags, int *addr_len) { struct inet_sock *inet = inet_sk(sk); - struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name; - struct sk_buff *skb; + struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name; + struct sk_buff *skb; int copied, err, copy_only, is_udplite = IS_UDPLITE(sk); /* @@ -824,8 +824,8 @@ try_again: skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) goto out; - - copied = skb->len - sizeof(struct udphdr); + + copied = skb->len - sizeof(struct udphdr); if (copied > len) { copied = len; msg->msg_flags |= MSG_TRUNC; @@ -868,18 +868,18 @@ try_again: sin->sin_port = skb->h.uh->source; sin->sin_addr.s_addr = skb->nh.iph->saddr; memset(sin->sin_zero, 0, sizeof(sin->sin_zero)); - } + } if (inet->cmsg_flags) ip_cmsg_recv(msg, skb); err = copied; if (flags & MSG_TRUNC) err = skb->len - sizeof(struct udphdr); - + out_free: - skb_free_datagram(sk, skb); + skb_free_datagram(sk, skb); out: - return err; + return err; csum_copy_err: UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite); @@ -887,7 +887,7 @@ csum_copy_err: skb_kill_datagram(sk, skb, flags); if (noblock) - return -EAGAIN; + return -EAGAIN; goto try_again; } @@ -898,7 +898,7 @@ int udp_disconnect(struct sock *sk, int flags) /* * 1003.1g - break association. */ - + sk->sk_state = TCP_CLOSE; inet->daddr = 0; inet->dport = 0; @@ -922,13 +922,13 @@ int udp_disconnect(struct sock *sk, int flags) static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb) { #ifndef CONFIG_XFRM - return 1; + return 1; #else struct udp_sock *up = udp_sk(sk); - struct udphdr *uh; + struct udphdr *uh; struct iphdr *iph; int iphlen, len; - + __u8 *udpdata; __be32 *udpdata32; __u16 encap_type = up->encap_type; @@ -971,7 +971,7 @@ static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb) return 0; } else if (len > 2 * sizeof(u32) + sizeof(struct ip_esp_hdr) && udpdata32[0] == 0 && udpdata32[1] == 0) { - + /* ESP Packet with Non-IKE marker */ len = sizeof(struct udphdr) + 2 * sizeof(u32); } else @@ -1187,14 +1187,14 @@ static inline void udp4_csum_init(struct sk_buff *skb, struct udphdr *uh) } /* - * All we need to do is get the socket, and then do a checksum. + * All we need to do is get the socket, and then do a checksum. */ - + int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], int is_udplite) { - struct sock *sk; - struct udphdr *uh = skb->h.uh; + struct sock *sk; + struct udphdr *uh = skb->h.uh; unsigned short ulen; struct rtable *rt = (struct rtable*)skb->dst; __be32 saddr = skb->nh.iph->saddr; @@ -1270,9 +1270,9 @@ short_packet: goto drop; csum_error: - /* - * RFC1122: OK. Discards the bad packet silently (as far as - * the network is concerned, anyway) as per 4.1.3.4 (MUST). + /* + * RFC1122: OK. Discards the bad packet silently (as far as + * the network is concerned, anyway) as per 4.1.3.4 (MUST). */ LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: bad checksum. From %d.%d.%d.%d:%d to %d.%d.%d.%d:%d ulen %d\n", is_udplite? "-Lite" : "", @@ -1328,7 +1328,7 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, release_sock(sk); } break; - + case UDP_ENCAP: switch (val) { case 0: @@ -1356,8 +1356,8 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, up->pcflag |= UDPLITE_SEND_CC; break; - /* The receiver specifies a minimum checksum coverage value. To make - * sense, this should be set to at least 8 (as done below). If zero is + /* The receiver specifies a minimum checksum coverage value. To make + * sense, this should be set to at least 8 (as done below). If zero is * used, this again means full checksum coverage. */ case UDPLITE_RECV_CSCOV: if (!up->pcflag) /* Disable the option on UDP sockets */ @@ -1406,7 +1406,7 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname, return -EFAULT; len = min_t(unsigned int, len, sizeof(int)); - + if(len < 0) return -EINVAL; @@ -1433,11 +1433,11 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname, return -ENOPROTOOPT; }; - if(put_user(len, optlen)) - return -EFAULT; + if(put_user(len, optlen)) + return -EFAULT; if(copy_to_user(optval, &val,len)) return -EFAULT; - return 0; + return 0; } int udp_getsockopt(struct sock *sk, int level, int optname, @@ -1463,7 +1463,7 @@ int compat_udp_getsockopt(struct sock *sk, int level, int optname, * @sock - socket * @wait - poll table * - * This is same as datagram poll, except for the special case of + * This is same as datagram poll, except for the special case of * blocking sockets. If application is using a blocking fd * and a packet with checksum error is in the queue; * then it could get return from select indicating data available @@ -1502,11 +1502,11 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait) } return mask; - + } struct proto udp_prot = { - .name = "UDP", + .name = "UDP", .owner = THIS_MODULE, .close = udp_lib_close, .connect = ip4_datagram_connect, @@ -1670,7 +1670,7 @@ static void udp4_format_sock(struct sock *sp, char *tmpbuf, int bucket) sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X" " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p", - bucket, src, srcp, dest, destp, sp->sk_state, + bucket, src, srcp, dest, destp, sp->sk_state, atomic_read(&sp->sk_wmem_alloc), atomic_read(&sp->sk_rmem_alloc), 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), |