diff options
author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
---|---|---|
committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
commit | 54c66f6d781e03dc0b23956234963c4911e6d1c0 (patch) | |
tree | 40619a66ae6d8703a57bf681d087ffeabbffd346 /net/ipv6/ndisc.c | |
parent | 8ce0a7df6e6117d8814e976d4b7ce6a6b2c9cf93 (diff) | |
parent | 17e0e27020d028a790d97699aff85a43af5be472 (diff) |
Merge branch 'master' into 85xx
Diffstat (limited to 'net/ipv6/ndisc.c')
-rw-r--r-- | net/ipv6/ndisc.c | 138 |
1 files changed, 69 insertions, 69 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 39bb658f3c4..121f31c283f 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1,9 +1,9 @@ /* * Neighbour Discovery for IPv6 - * Linux INET6 implementation + * Linux INET6 implementation * * Authors: - * Pedro Roque <roque@di.fc.ul.pt> + * Pedro Roque <roque@di.fc.ul.pt> * Mike Shaver <shaver@ingenia.com> * * This program is free software; you can redistribute it and/or @@ -427,25 +427,25 @@ static inline void ndisc_flow_init(struct flowi *fl, u8 type, static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh, struct in6_addr *daddr, struct in6_addr *solicited_addr, - int router, int solicited, int override, int inc_opt) + int router, int solicited, int override, int inc_opt) { struct in6_addr tmpaddr; struct inet6_ifaddr *ifp; struct inet6_dev *idev; struct flowi fl; struct dst_entry* dst; - struct sock *sk = ndisc_socket->sk; + struct sock *sk = ndisc_socket->sk; struct in6_addr *src_addr; - struct nd_msg *msg; - int len; - struct sk_buff *skb; + struct nd_msg *msg; + int len; + struct sk_buff *skb; int err; len = sizeof(struct icmp6hdr) + sizeof(struct in6_addr); /* for anycast or proxy, solicited_addr != src_addr */ ifp = ipv6_get_ifaddr(solicited_addr, dev, 1); - if (ifp) { + if (ifp) { src_addr = solicited_addr; in6_ifa_put(ifp); } else { @@ -479,7 +479,7 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh, if (skb == NULL) { ND_PRINTK0(KERN_ERR - "ICMPv6 NA: %s() failed to allocate an skb.\n", + "ICMPv6 NA: %s() failed to allocate an skb.\n", __FUNCTION__); dst_release(dst); return; @@ -491,16 +491,16 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh, msg = (struct nd_msg *)skb_put(skb, len); skb->h.raw = (unsigned char*)msg; - msg->icmph.icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT; - msg->icmph.icmp6_code = 0; - msg->icmph.icmp6_cksum = 0; + msg->icmph.icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT; + msg->icmph.icmp6_code = 0; + msg->icmph.icmp6_cksum = 0; - msg->icmph.icmp6_unused = 0; - msg->icmph.icmp6_router = router; - msg->icmph.icmp6_solicited = solicited; - msg->icmph.icmp6_override = override; + msg->icmph.icmp6_unused = 0; + msg->icmph.icmp6_router = router; + msg->icmph.icmp6_solicited = solicited; + msg->icmph.icmp6_override = override; - /* Set the target address. */ + /* Set the target address. */ ipv6_addr_copy(&msg->target, solicited_addr); if (inc_opt) @@ -508,9 +508,9 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh, dev->addr_len, dev->type); /* checksum */ - msg->icmph.icmp6_cksum = csum_ipv6_magic(src_addr, daddr, len, + msg->icmph.icmp6_cksum = csum_ipv6_magic(src_addr, daddr, len, IPPROTO_ICMPV6, - csum_partial((__u8 *) msg, + csum_partial((__u8 *) msg, len, 0)); skb->dst = dst; @@ -524,20 +524,20 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh, if (likely(idev != NULL)) in6_dev_put(idev); -} +} void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh, struct in6_addr *solicit, - struct in6_addr *daddr, struct in6_addr *saddr) + struct in6_addr *daddr, struct in6_addr *saddr) { struct flowi fl; struct dst_entry* dst; struct inet6_dev *idev; - struct sock *sk = ndisc_socket->sk; - struct sk_buff *skb; - struct nd_msg *msg; + struct sock *sk = ndisc_socket->sk; + struct sk_buff *skb; + struct nd_msg *msg; struct in6_addr addr_buf; - int len; + int len; int err; int send_llinfo; @@ -569,7 +569,7 @@ void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh, 1, &err); if (skb == NULL) { ND_PRINTK0(KERN_ERR - "ICMPv6 NA: %s() failed to allocate an skb.\n", + "ICMPv6 NA: %s() failed to allocate an skb.\n", __FUNCTION__); dst_release(dst); return; @@ -594,9 +594,9 @@ void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh, /* checksum */ msg->icmph.icmp6_cksum = csum_ipv6_magic(&skb->nh.ipv6h->saddr, - daddr, len, + daddr, len, IPPROTO_ICMPV6, - csum_partial((__u8 *) msg, + csum_partial((__u8 *) msg, len, 0)); /* send it! */ skb->dst = dst; @@ -619,10 +619,10 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr, struct dst_entry* dst; struct inet6_dev *idev; struct sock *sk = ndisc_socket->sk; - struct sk_buff *skb; - struct icmp6hdr *hdr; + struct sk_buff *skb; + struct icmp6hdr *hdr; __u8 * opt; - int len; + int len; int err; ndisc_flow_init(&fl, NDISC_ROUTER_SOLICITATION, saddr, daddr, @@ -640,13 +640,13 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr, if (dev->addr_len) len += ndisc_opt_addr_space(dev); - skb = sock_alloc_send_skb(sk, + skb = sock_alloc_send_skb(sk, (MAX_HEADER + sizeof(struct ipv6hdr) + len + LL_RESERVED_SPACE(dev)), 1, &err); if (skb == NULL) { ND_PRINTK0(KERN_ERR - "ICMPv6 RS: %s() failed to allocate an skb.\n", + "ICMPv6 RS: %s() failed to allocate an skb.\n", __FUNCTION__); dst_release(dst); return; @@ -655,12 +655,12 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr, skb_reserve(skb, LL_RESERVED_SPACE(dev)); ip6_nd_hdr(sk, skb, dev, saddr, daddr, IPPROTO_ICMPV6, len); - hdr = (struct icmp6hdr *)skb_put(skb, len); - skb->h.raw = (unsigned char*)hdr; - hdr->icmp6_type = NDISC_ROUTER_SOLICITATION; - hdr->icmp6_code = 0; - hdr->icmp6_cksum = 0; - hdr->icmp6_unused = 0; + hdr = (struct icmp6hdr *)skb_put(skb, len); + skb->h.raw = (unsigned char*)hdr; + hdr->icmp6_type = NDISC_ROUTER_SOLICITATION; + hdr->icmp6_code = 0; + hdr->icmp6_cksum = 0; + hdr->icmp6_unused = 0; opt = (u8*) (hdr + 1); @@ -686,7 +686,7 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr, if (likely(idev != NULL)) in6_dev_put(idev); } - + static void ndisc_error_report(struct neighbour *neigh, struct sk_buff *skb) { @@ -748,7 +748,7 @@ static void ndisc_recv_ns(struct sk_buff *skb) int is_router; if (ipv6_addr_is_multicast(&msg->target)) { - ND_PRINTK2(KERN_WARNING + ND_PRINTK2(KERN_WARNING "ICMPv6 NS: multicast target address"); return; } @@ -768,7 +768,7 @@ static void ndisc_recv_ns(struct sk_buff *skb) } if (!ndisc_parse_options(msg->opt, ndoptlen, &ndopts)) { - ND_PRINTK2(KERN_WARNING + ND_PRINTK2(KERN_WARNING "ICMPv6 NS: invalid ND options\n"); return; } @@ -782,12 +782,12 @@ static void ndisc_recv_ns(struct sk_buff *skb) } /* RFC2461 7.1.1: - * If the IP source address is the unspecified address, - * there MUST NOT be source link-layer address option + * If the IP source address is the unspecified address, + * there MUST NOT be source link-layer address option * in the message. */ if (dad) { - ND_PRINTK2(KERN_WARNING + ND_PRINTK2(KERN_WARNING "ICMPv6 NS: bad DAD packet (link-layer address option)\n"); return; } @@ -816,7 +816,7 @@ static void ndisc_recv_ns(struct sk_buff *skb) goto out; } } - addrconf_dad_failure(ifp); + addrconf_dad_failure(ifp); return; } @@ -829,7 +829,7 @@ static void ndisc_recv_ns(struct sk_buff *skb) } if (ipv6_chk_acast_addr(dev, &msg->target) || - (idev->cnf.forwarding && + (idev->cnf.forwarding && (ipv6_devconf.proxy_ndp || idev->cnf.proxy_ndp) && (pneigh = pneigh_lookup(&nd_tbl, &msg->target, dev, 0)) != NULL)) { @@ -839,8 +839,8 @@ static void ndisc_recv_ns(struct sk_buff *skb) idev->nd_parms->proxy_delay != 0) { /* * for anycast or proxy, - * sender should delay its response - * by a random time between 0 and + * sender should delay its response + * by a random time between 0 and * MAX_ANYCAST_DELAY_TIME seconds. * (RFC2461) -- yoshfuji */ @@ -869,14 +869,14 @@ static void ndisc_recv_ns(struct sk_buff *skb) else NEIGH_CACHE_STAT_INC(&nd_tbl, rcv_probes_ucast); - /* + /* * update / create cache entry * for the source address */ neigh = __neigh_lookup(&nd_tbl, saddr, dev, !inc || lladdr || !dev->addr_len); if (neigh) - neigh_update(neigh, lladdr, NUD_STALE, + neigh_update(neigh, lladdr, NUD_STALE, NEIGH_UPDATE_F_WEAK_OVERRIDE| NEIGH_UPDATE_F_OVERRIDE); if (neigh || !dev->hard_header) { @@ -926,7 +926,7 @@ static void ndisc_recv_na(struct sk_buff *skb) "ICMPv6 NA: solicited NA is multicasted.\n"); return; } - + if (!ndisc_parse_options(msg->opt, ndoptlen, &ndopts)) { ND_PRINTK2(KERN_WARNING "ICMPv6 NS: invalid ND option\n"); @@ -1057,7 +1057,7 @@ out: static void ndisc_router_discovery(struct sk_buff *skb) { - struct ra_msg *ra_msg = (struct ra_msg *) skb->h.raw; + struct ra_msg *ra_msg = (struct ra_msg *) skb->h.raw; struct neighbour *neigh = NULL; struct inet6_dev *in6_dev; struct rt6_info *rt = NULL; @@ -1076,7 +1076,7 @@ static void ndisc_router_discovery(struct sk_buff *skb) return; } if (optlen < 0) { - ND_PRINTK2(KERN_WARNING + ND_PRINTK2(KERN_WARNING "ICMPv6 RA: packet too short\n"); return; } @@ -1286,7 +1286,7 @@ skip_defrtr: rt6_mtu_change(skb->dev, mtu); } } - + if (ndopts.nd_opts_tgt_lladdr || ndopts.nd_opts_rh) { ND_PRINTK2(KERN_WARNING "ICMPv6 RA: invalid RA options"); @@ -1339,7 +1339,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb) if (ipv6_addr_equal(dest, target)) { on_link = 1; } else if (!(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) { - ND_PRINTK2(KERN_WARNING + ND_PRINTK2(KERN_WARNING "ICMPv6 Redirect: target address is not link-local.\n"); return; } @@ -1352,11 +1352,11 @@ static void ndisc_redirect_rcv(struct sk_buff *skb) return; } - /* RFC2461 8.1: + /* RFC2461 8.1: * The IP source address of the Redirect MUST be the same as the current * first-hop router for the specified ICMP Destination Address. */ - + if (!ndisc_parse_options((u8*)(dest + 1), optlen, &ndopts)) { ND_PRINTK2(KERN_WARNING "ICMPv6 Redirect: invalid ND options\n"); @@ -1410,8 +1410,8 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh, ND_PRINTK2(KERN_WARNING "ICMPv6 Redirect: no link-local address on %s\n", dev->name); - return; - } + return; + } if (!ipv6_addr_equal(&skb->nh.ipv6h->daddr, target) && !(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) { @@ -1507,7 +1507,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh, * build redirect option and copy skb over to the new packet. */ - memset(opt, 0, 8); + memset(opt, 0, 8); *(opt++) = ND_OPT_REDIRECT_HDR; *(opt++) = (rd_len >> 3); opt += 6; @@ -1556,7 +1556,7 @@ int ndisc_rcv(struct sk_buff *skb) } if (msg->icmph.icmp6_code != 0) { - ND_PRINTK2(KERN_WARNING + ND_PRINTK2(KERN_WARNING "ICMPv6 NDISC: invalid ICMPv6 code: %d\n", msg->icmph.icmp6_code); return 0; @@ -1717,12 +1717,12 @@ int __init ndisc_init(struct net_proto_family *ops) { struct ipv6_pinfo *np; struct sock *sk; - int err; + int err; err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6, &ndisc_socket); if (err < 0) { ND_PRINTK0(KERN_ERR - "ICMPv6 NDISC: Failed to initialize the control socket (err %d).\n", + "ICMPv6 NDISC: Failed to initialize the control socket (err %d).\n", err); ndisc_socket = NULL; /* For safety. */ return err; @@ -1736,14 +1736,14 @@ int __init ndisc_init(struct net_proto_family *ops) np->mc_loop = 0; sk->sk_prot->unhash(sk); - /* - * Initialize the neighbour table - */ - + /* + * Initialize the neighbour table + */ + neigh_table_init(&nd_tbl); #ifdef CONFIG_SYSCTL - neigh_sysctl_register(NULL, &nd_tbl.parms, NET_IPV6, NET_IPV6_NEIGH, + neigh_sysctl_register(NULL, &nd_tbl.parms, NET_IPV6, NET_IPV6_NEIGH, "ipv6", &ndisc_ifinfo_sysctl_change, &ndisc_ifinfo_sysctl_strategy); 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