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net/ipv6/raw.c
30.9 KB
1da177e4c Linux-2.6.12-rc2 |
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/* * RAW sockets for IPv6 |
1ab1457c4 [NET] IPV6: Fix w... |
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* Linux INET6 implementation |
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* * Authors: |
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* Pedro Roque <roque@di.fc.ul.pt> |
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* * Adapted from linux/net/ipv4/raw.c * |
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* Fixes: * Hideaki YOSHIFUJI : sin6_scope_id support |
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* YOSHIFUJI,H.@USAGI : raw checksum (RFC2292(bis) compliance) |
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* Kazunori MIYAZAWA @USAGI: change process style to use ip6_append_data * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/errno.h> #include <linux/types.h> #include <linux/socket.h> |
5a0e3ad6a include cleanup: ... |
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#include <linux/slab.h> |
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#include <linux/sockios.h> |
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#include <linux/net.h> #include <linux/in6.h> #include <linux/netdevice.h> #include <linux/if_arp.h> #include <linux/icmpv6.h> #include <linux/netfilter.h> #include <linux/netfilter_ipv6.h> |
3305b80c2 [IP]: Simplify an... |
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#include <linux/skbuff.h> |
e2d57766e net: Provide comp... |
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#include <linux/compat.h> |
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#include <asm/uaccess.h> #include <asm/ioctls.h> |
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#include <net/net_namespace.h> |
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#include <net/ip.h> #include <net/sock.h> #include <net/snmp.h> #include <net/ipv6.h> #include <net/ndisc.h> #include <net/protocol.h> #include <net/ip6_route.h> #include <net/ip6_checksum.h> #include <net/addrconf.h> #include <net/transp_v6.h> #include <net/udp.h> #include <net/inet_common.h> |
c752f0739 [TCP]: Move the t... |
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#include <net/tcp_states.h> |
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#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) |
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#include <net/mip6.h> #endif |
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#include <linux/mroute6.h> |
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|
b673e4dfc [RAW]: Introduce ... |
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#include <net/raw.h> |
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#include <net/rawv6.h> #include <net/xfrm.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> |
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#include <linux/export.h> |
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|
b673e4dfc [RAW]: Introduce ... |
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static struct raw_hashinfo raw_v6_hashinfo = { |
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.lock = __RW_LOCK_UNLOCKED(raw_v6_hashinfo.lock), |
b673e4dfc [RAW]: Introduce ... |
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}; |
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|
be185884b [NETNS][RAW]: Mak... |
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static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk, |
b71d1d426 inet: constify ip... |
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unsigned short num, const struct in6_addr *loc_addr, const struct in6_addr *rmt_addr, int dif) |
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{ struct hlist_node *node; int is_multicast = ipv6_addr_is_multicast(loc_addr); sk_for_each_from(sk, node) |
c720c7e83 inet: rename some... |
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if (inet_sk(sk)->inet_num == num) { |
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struct ipv6_pinfo *np = inet6_sk(sk); |
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if (!net_eq(sock_net(sk), net)) |
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continue; |
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if (!ipv6_addr_any(&np->daddr) && !ipv6_addr_equal(&np->daddr, rmt_addr)) continue; |
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if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif) continue; |
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if (!ipv6_addr_any(&np->rcv_saddr)) { if (ipv6_addr_equal(&np->rcv_saddr, loc_addr)) goto found; if (is_multicast && inet6_mc_check(sk, loc_addr, rmt_addr)) goto found; continue; } goto found; } sk = NULL; found: return sk; } /* * 0 - deliver * 1 - block */ static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb) { struct icmp6hdr *icmph; struct raw6_sock *rp = raw6_sk(sk); if (pskb_may_pull(skb, sizeof(struct icmp6hdr))) { __u32 *data = &rp->filter.data[0]; int bit_nr; icmph = (struct icmp6hdr *) skb->data; bit_nr = icmph->icmp6_type; return (data[bit_nr >> 5] & (1 << (bit_nr & 31))) != 0; } return 0; } |
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#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) |
f2eda47df ipv6: raw: rcu an... |
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typedef int mh_filter_t(struct sock *sock, struct sk_buff *skb); |
59fbb3a61 [IPV6] MIP6: Load... |
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|
f2eda47df ipv6: raw: rcu an... |
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static mh_filter_t __rcu *mh_filter __read_mostly; int rawv6_mh_filter_register(mh_filter_t filter) |
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{ |
cf778b00e net: reintroduce ... |
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rcu_assign_pointer(mh_filter, filter); |
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return 0; } EXPORT_SYMBOL(rawv6_mh_filter_register); |
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int rawv6_mh_filter_unregister(mh_filter_t filter) |
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{ |
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RCU_INIT_POINTER(mh_filter, NULL); |
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synchronize_rcu(); return 0; } EXPORT_SYMBOL(rawv6_mh_filter_unregister); #endif |
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/* * demultiplex raw sockets. * (should consider queueing the skb in the sock receive_queue * without calling rawv6.c) * * Caller owns SKB so we must make clones. */ |
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static int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr) |
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{ |
b71d1d426 inet: constify ip... |
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const struct in6_addr *saddr; const struct in6_addr *daddr; |
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struct sock *sk; |
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int delivered = 0; |
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__u8 hash; |
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struct net *net; |
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|
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saddr = &ipv6_hdr(skb)->saddr; |
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daddr = saddr + 1; hash = nexthdr & (MAX_INET_PROTOS - 1); |
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read_lock(&raw_v6_hashinfo.lock); sk = sk_head(&raw_v6_hashinfo.ht[hash]); |
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|
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if (sk == NULL) goto out; |
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net = dev_net(skb->dev); |
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sk = __raw_v6_lookup(net, sk, nexthdr, daddr, saddr, IP6CB(skb)->iif); |
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while (sk) { |
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int filtered; |
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delivered = 1; |
7be96f762 [IPV6] MIP6: Add ... |
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switch (nexthdr) { case IPPROTO_ICMPV6: filtered = icmpv6_filter(sk, skb); break; |
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#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) |
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case IPPROTO_MH: |
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{ |
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/* XXX: To validate MH only once for each packet, * this is placed here. It should be after checking * xfrm policy, however it doesn't. The checking xfrm * policy is placed in rawv6_rcv() because it is * required for each socket. */ |
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mh_filter_t *filter; |
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filter = rcu_dereference(mh_filter); |
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filtered = filter ? (*filter)(sk, skb) : 0; |
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break; |
59fbb3a61 [IPV6] MIP6: Load... |
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} |
7be96f762 [IPV6] MIP6: Add ... |
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#endif default: filtered = 0; break; } if (filtered < 0) break; if (filtered == 0) { |
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struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); /* Not releasing hash table! */ |
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if (clone) { nf_reset(clone); |
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rawv6_rcv(sk, clone); |
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} |
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} |
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sk = __raw_v6_lookup(net, sk_next(sk), nexthdr, daddr, saddr, |
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IP6CB(skb)->iif); |
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} out: |
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read_unlock(&raw_v6_hashinfo.lock); |
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return delivered; |
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} |
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int raw6_local_deliver(struct sk_buff *skb, int nexthdr) { struct sock *raw_sk; |
b673e4dfc [RAW]: Introduce ... |
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raw_sk = sk_head(&raw_v6_hashinfo.ht[nexthdr & (MAX_INET_PROTOS - 1)]); |
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if (raw_sk && !ipv6_raw_deliver(skb, nexthdr)) raw_sk = NULL; return raw_sk != NULL; } |
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/* This cleans up af_inet6 a bit. -DaveM */ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) { struct inet_sock *inet = inet_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk); struct sockaddr_in6 *addr = (struct sockaddr_in6 *) uaddr; |
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__be32 v4addr = 0; |
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int addr_type; int err; if (addr_len < SIN6_LEN_RFC2133) return -EINVAL; addr_type = ipv6_addr_type(&addr->sin6_addr); /* Raw sockets are IPv6 only */ if (addr_type == IPV6_ADDR_MAPPED) |
fd5c00276 ipv6: avoid dev_h... |
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return -EADDRNOTAVAIL; |
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lock_sock(sk); err = -EINVAL; if (sk->sk_state != TCP_CLOSE) goto out; |
fd5c00276 ipv6: avoid dev_h... |
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rcu_read_lock(); |
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/* Check if the address belongs to the host. */ if (addr_type != IPV6_ADDR_ANY) { struct net_device *dev = NULL; if (addr_type & IPV6_ADDR_LINKLOCAL) { if (addr_len >= sizeof(struct sockaddr_in6) && addr->sin6_scope_id) { /* Override any existing binding, if another * one is supplied by user. */ sk->sk_bound_dev_if = addr->sin6_scope_id; } |
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|
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/* Binding to link-local address requires an interface */ if (!sk->sk_bound_dev_if) |
fd5c00276 ipv6: avoid dev_h... |
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goto out_unlock; |
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|
fd5c00276 ipv6: avoid dev_h... |
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err = -ENODEV; dev = dev_get_by_index_rcu(sock_net(sk), sk->sk_bound_dev_if); if (!dev) goto out_unlock; |
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} |
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|
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/* ipv4 addr of the socket is invalid. Only the * unspecified and mapped address have a v4 equivalent. */ v4addr = LOOPBACK4_IPV6; if (!(addr_type & IPV6_ADDR_MULTICAST)) { err = -EADDRNOTAVAIL; |
3b1e0a655 [NET] NETNS: Omit... |
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if (!ipv6_chk_addr(sock_net(sk), &addr->sin6_addr, |
bfeade087 [NETNS][IPV6]: in... |
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dev, 0)) { |
fd5c00276 ipv6: avoid dev_h... |
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goto out_unlock; |
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} } |
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} |
c720c7e83 inet: rename some... |
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inet->inet_rcv_saddr = inet->inet_saddr = v4addr; |
4e3fd7a06 net: remove ipv6_... |
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np->rcv_saddr = addr->sin6_addr; |
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if (!(addr_type & IPV6_ADDR_MULTICAST)) |
4e3fd7a06 net: remove ipv6_... |
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np->saddr = addr->sin6_addr; |
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err = 0; |
fd5c00276 ipv6: avoid dev_h... |
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out_unlock: rcu_read_unlock(); |
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out: release_sock(sk); return err; } |
69d6da0b0 [IPv6] RAW: Compa... |
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static void rawv6_err(struct sock *sk, struct sk_buff *skb, |
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struct inet6_skb_parm *opt, |
d5fdd6bab ipv6: Use correct... |
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u8 type, u8 code, int offset, __be32 info) |
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{ struct inet_sock *inet = inet_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk); int err; int harderr; /* Report error on raw socket, if: 1. User requested recverr. 2. Socket is connected (otherwise the error indication is useless without recverr and error is hard. */ if (!np->recverr && sk->sk_state != TCP_ESTABLISHED) return; harderr = icmpv6_err_convert(type, code, &err); if (type == ICMPV6_PKT_TOOBIG) harderr = (np->pmtudisc == IPV6_PMTUDISC_DO); if (np->recverr) { u8 *payload = skb->data; if (!inet->hdrincl) payload += offset; ipv6_icmp_error(sk, skb, err, 0, ntohl(info), payload); } if (np->recverr || harderr) { sk->sk_err = err; sk->sk_error_report(sk); } } |
69d6da0b0 [IPv6] RAW: Compa... |
329 |
void raw6_icmp_error(struct sk_buff *skb, int nexthdr, |
d5fdd6bab ipv6: Use correct... |
330 |
u8 type, u8 code, int inner_offset, __be32 info) |
69d6da0b0 [IPv6] RAW: Compa... |
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{ struct sock *sk; int hash; |
b71d1d426 inet: constify ip... |
334 |
const struct in6_addr *saddr, *daddr; |
be185884b [NETNS][RAW]: Mak... |
335 |
struct net *net; |
69d6da0b0 [IPv6] RAW: Compa... |
336 |
|
b673e4dfc [RAW]: Introduce ... |
337 |
hash = nexthdr & (RAW_HTABLE_SIZE - 1); |
69d6da0b0 [IPv6] RAW: Compa... |
338 |
|
b673e4dfc [RAW]: Introduce ... |
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read_lock(&raw_v6_hashinfo.lock); sk = sk_head(&raw_v6_hashinfo.ht[hash]); |
69d6da0b0 [IPv6] RAW: Compa... |
341 |
if (sk != NULL) { |
05f175cdc [IPV6]: Fix IPV6_... |
342 |
/* Note: ipv6_hdr(skb) != skb->data */ |
b71d1d426 inet: constify ip... |
343 |
const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data; |
05f175cdc [IPV6]: Fix IPV6_... |
344 345 |
saddr = &ip6h->saddr; daddr = &ip6h->daddr; |
c346dca10 [NET] NETNS: Omit... |
346 |
net = dev_net(skb->dev); |
69d6da0b0 [IPv6] RAW: Compa... |
347 |
|
be185884b [NETNS][RAW]: Mak... |
348 |
while ((sk = __raw_v6_lookup(net, sk, nexthdr, saddr, daddr, |
69d6da0b0 [IPv6] RAW: Compa... |
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IP6CB(skb)->iif))) { rawv6_err(sk, skb, NULL, type, code, inner_offset, info); sk = sk_next(sk); } } |
b673e4dfc [RAW]: Introduce ... |
355 |
read_unlock(&raw_v6_hashinfo.lock); |
69d6da0b0 [IPv6] RAW: Compa... |
356 |
} |
33d480ce6 net: cleanup some... |
357 |
static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb) |
1da177e4c Linux-2.6.12-rc2 |
358 |
{ |
33d480ce6 net: cleanup some... |
359 |
if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) && |
fb286bb29 [NET]: Detect har... |
360 |
skb_checksum_complete(skb)) { |
a92aa318b [IPV6]: Add raw6 ... |
361 |
atomic_inc(&sk->sk_drops); |
fb286bb29 [NET]: Detect har... |
362 |
kfree_skb(skb); |
3cc76caa9 ipv6: When we dro... |
363 |
return NET_RX_DROP; |
1da177e4c Linux-2.6.12-rc2 |
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} /* Charge it to the socket. */ |
d826eb14e ipv4: PKTINFO doe... |
367 368 |
skb_dst_drop(skb); if (sock_queue_rcv_skb(sk, skb) < 0) { |
1da177e4c Linux-2.6.12-rc2 |
369 |
kfree_skb(skb); |
3cc76caa9 ipv6: When we dro... |
370 |
return NET_RX_DROP; |
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} return 0; } /* |
1ab1457c4 [NET] IPV6: Fix w... |
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* This is next to useless... |
1da177e4c Linux-2.6.12-rc2 |
378 |
* if we demultiplex in network layer we don't need the extra call |
1ab1457c4 [NET] IPV6: Fix w... |
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* just to queue the skb... * maybe we could have the network decide upon a hint if it |
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* should call raw_rcv for demultiplexing */ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) { struct inet_sock *inet = inet_sk(sk); struct raw6_sock *rp = raw6_sk(sk); |
1ab1457c4 [NET] IPV6: Fix w... |
387 |
if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) { |
a92aa318b [IPV6]: Add raw6 ... |
388 |
atomic_inc(&sk->sk_drops); |
1ab1457c4 [NET] IPV6: Fix w... |
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kfree_skb(skb); return NET_RX_DROP; } |
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if (!rp->checksum) skb->ip_summed = CHECKSUM_UNNECESSARY; |
84fa7933a [NET]: Replace CH... |
395 |
if (skb->ip_summed == CHECKSUM_COMPLETE) { |
d56f90a7c [SK_BUFF]: Introd... |
396 |
skb_postpull_rcsum(skb, skb_network_header(skb), |
cfe1fc775 [SK_BUFF]: Introd... |
397 |
skb_network_header_len(skb)); |
0660e03f6 [SK_BUFF]: Introd... |
398 399 |
if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, |
c720c7e83 inet: rename some... |
400 |
skb->len, inet->inet_num, skb->csum)) |
1da177e4c Linux-2.6.12-rc2 |
401 |
skb->ip_summed = CHECKSUM_UNNECESSARY; |
1da177e4c Linux-2.6.12-rc2 |
402 |
} |
604763722 [NET]: Treat CHEC... |
403 |
if (!skb_csum_unnecessary(skb)) |
0660e03f6 [SK_BUFF]: Introd... |
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skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, skb->len, |
c720c7e83 inet: rename some... |
407 |
inet->inet_num, 0)); |
1da177e4c Linux-2.6.12-rc2 |
408 409 |
if (inet->hdrincl) { |
fb286bb29 [NET]: Detect har... |
410 |
if (skb_checksum_complete(skb)) { |
a92aa318b [IPV6]: Add raw6 ... |
411 |
atomic_inc(&sk->sk_drops); |
1da177e4c Linux-2.6.12-rc2 |
412 |
kfree_skb(skb); |
3cc76caa9 ipv6: When we dro... |
413 |
return NET_RX_DROP; |
1da177e4c Linux-2.6.12-rc2 |
414 |
} |
1da177e4c Linux-2.6.12-rc2 |
415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 |
} rawv6_rcv_skb(sk, skb); return 0; } /* * This should be easy, if there is something there * we return it, otherwise we block. */ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, size_t len, int noblock, int flags, int *addr_len) { struct ipv6_pinfo *np = inet6_sk(sk); struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)msg->msg_name; struct sk_buff *skb; size_t copied; int err; if (flags & MSG_OOB) return -EOPNOTSUPP; |
1ab1457c4 [NET] IPV6: Fix w... |
439 440 |
if (addr_len) |
1da177e4c Linux-2.6.12-rc2 |
441 442 443 444 |
*addr_len=sizeof(*sin6); if (flags & MSG_ERRQUEUE) return ipv6_recv_error(sk, msg, len); |
4b340ae20 IPv6: Complete IP... |
445 446 |
if (np->rxpmtu && np->rxopt.bits.rxpmtu) return ipv6_recv_rxpmtu(sk, msg, len); |
1da177e4c Linux-2.6.12-rc2 |
447 448 449 450 451 |
skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) goto out; copied = skb->len; |
1ab1457c4 [NET] IPV6: Fix w... |
452 453 454 455 |
if (copied > len) { copied = len; msg->msg_flags |= MSG_TRUNC; } |
1da177e4c Linux-2.6.12-rc2 |
456 |
|
604763722 [NET]: Treat CHEC... |
457 |
if (skb_csum_unnecessary(skb)) { |
1da177e4c Linux-2.6.12-rc2 |
458 459 |
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); } else if (msg->msg_flags&MSG_TRUNC) { |
fb286bb29 [NET]: Detect har... |
460 |
if (__skb_checksum_complete(skb)) |
1da177e4c Linux-2.6.12-rc2 |
461 462 463 464 465 466 467 468 469 470 471 472 473 |
goto csum_copy_err; err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); } else { err = skb_copy_and_csum_datagram_iovec(skb, 0, msg->msg_iov); if (err == -EINVAL) goto csum_copy_err; } if (err) goto out_free; /* Copy the address. */ if (sin6) { sin6->sin6_family = AF_INET6; |
f59fc7f30 [IPV4/IPV6]: Sett... |
474 |
sin6->sin6_port = 0; |
4e3fd7a06 net: remove ipv6_... |
475 |
sin6->sin6_addr = ipv6_hdr(skb)->saddr; |
1da177e4c Linux-2.6.12-rc2 |
476 477 478 479 480 |
sin6->sin6_flowinfo = 0; sin6->sin6_scope_id = 0; if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) sin6->sin6_scope_id = IP6CB(skb)->iif; } |
3b885787e net: Generalize s... |
481 |
sock_recv_ts_and_drops(msg, sk, skb); |
1da177e4c Linux-2.6.12-rc2 |
482 483 484 485 486 487 488 489 490 491 492 493 494 495 |
if (np->rxopt.all) datagram_recv_ctl(sk, msg, skb); err = copied; if (flags & MSG_TRUNC) err = skb->len; out_free: skb_free_datagram(sk, skb); out: return err; csum_copy_err: |
3305b80c2 [IP]: Simplify an... |
496 |
skb_kill_datagram(sk, skb, flags); |
1da177e4c Linux-2.6.12-rc2 |
497 498 499 500 501 |
/* Error for blocking case is chosen to masquerade as some normal condition. */ err = (flags&MSG_DONTWAIT) ? -EAGAIN : -EHOSTUNREACH; |
3305b80c2 [IP]: Simplify an... |
502 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
503 |
} |
4c9483b2f ipv6: Convert to ... |
504 |
static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6, |
357b40a18 [IPV6]: IPV6_CHEC... |
505 |
struct raw6_sock *rp) |
1da177e4c Linux-2.6.12-rc2 |
506 507 508 |
{ struct sk_buff *skb; int err = 0; |
357b40a18 [IPV6]: IPV6_CHEC... |
509 510 |
int offset; int len; |
679a87382 [IPV6]: Fix raw s... |
511 |
int total_len; |
868c86bcb [NET]: annotate c... |
512 513 |
__wsum tmp_csum; __sum16 csum; |
1da177e4c Linux-2.6.12-rc2 |
514 515 516 517 518 519 |
if (!rp->checksum) goto send; if ((skb = skb_peek(&sk->sk_write_queue)) == NULL) goto out; |
357b40a18 [IPV6]: IPV6_CHEC... |
520 |
offset = rp->offset; |
299b07676 ipv6: Fix IPsec s... |
521 |
total_len = inet_sk(sk)->cork.base.length; |
679a87382 [IPV6]: Fix raw s... |
522 |
if (offset >= total_len - 1) { |
1da177e4c Linux-2.6.12-rc2 |
523 |
err = -EINVAL; |
357b40a18 [IPV6]: IPV6_CHEC... |
524 |
ip6_flush_pending_frames(sk); |
1da177e4c Linux-2.6.12-rc2 |
525 526 527 528 529 530 531 532 533 534 |
goto out; } /* should be check HW csum miyazawa */ if (skb_queue_len(&sk->sk_write_queue) == 1) { /* * Only one fragment on the socket. */ tmp_csum = skb->csum; } else { |
357b40a18 [IPV6]: IPV6_CHEC... |
535 |
struct sk_buff *csum_skb = NULL; |
1da177e4c Linux-2.6.12-rc2 |
536 537 538 539 |
tmp_csum = 0; skb_queue_walk(&sk->sk_write_queue, skb) { tmp_csum = csum_add(tmp_csum, skb->csum); |
357b40a18 [IPV6]: IPV6_CHEC... |
540 541 542 |
if (csum_skb) continue; |
ea2ae17d6 [SK_BUFF]: Introd... |
543 |
len = skb->len - skb_transport_offset(skb); |
357b40a18 [IPV6]: IPV6_CHEC... |
544 545 546 547 548 549 |
if (offset >= len) { offset -= len; continue; } csum_skb = skb; |
1da177e4c Linux-2.6.12-rc2 |
550 |
} |
357b40a18 [IPV6]: IPV6_CHEC... |
551 552 |
skb = csum_skb; |
1da177e4c Linux-2.6.12-rc2 |
553 |
} |
ea2ae17d6 [SK_BUFF]: Introd... |
554 |
offset += skb_transport_offset(skb); |
357b40a18 [IPV6]: IPV6_CHEC... |
555 556 |
if (skb_copy_bits(skb, offset, &csum, 2)) BUG(); |
1da177e4c Linux-2.6.12-rc2 |
557 |
/* in case cksum was not initialized */ |
357b40a18 [IPV6]: IPV6_CHEC... |
558 |
if (unlikely(csum)) |
5f92a7388 [NET]: Annotate c... |
559 |
tmp_csum = csum_sub(tmp_csum, csum_unfold(csum)); |
357b40a18 [IPV6]: IPV6_CHEC... |
560 |
|
4c9483b2f ipv6: Convert to ... |
561 562 |
csum = csum_ipv6_magic(&fl6->saddr, &fl6->daddr, total_len, fl6->flowi6_proto, tmp_csum); |
357b40a18 [IPV6]: IPV6_CHEC... |
563 |
|
4c9483b2f ipv6: Convert to ... |
564 |
if (csum == 0 && fl6->flowi6_proto == IPPROTO_UDP) |
f6ab02880 [NET]: Make mangl... |
565 |
csum = CSUM_MANGLED_0; |
1da177e4c Linux-2.6.12-rc2 |
566 |
|
357b40a18 [IPV6]: IPV6_CHEC... |
567 568 |
if (skb_store_bits(skb, offset, &csum, 2)) BUG(); |
1da177e4c Linux-2.6.12-rc2 |
569 |
|
1da177e4c Linux-2.6.12-rc2 |
570 571 572 573 574 575 576 |
send: err = ip6_push_pending_frames(sk); out: return err; } static int rawv6_send_hdrinc(struct sock *sk, void *from, int length, |
4c9483b2f ipv6: Convert to ... |
577 |
struct flowi6 *fl6, struct dst_entry **dstp, |
1da177e4c Linux-2.6.12-rc2 |
578 579 |
unsigned int flags) { |
3320da890 [IPV6]: Replace b... |
580 |
struct ipv6_pinfo *np = inet6_sk(sk); |
1da177e4c Linux-2.6.12-rc2 |
581 582 |
struct ipv6hdr *iph; struct sk_buff *skb; |
1da177e4c Linux-2.6.12-rc2 |
583 |
int err; |
1789a640f raw: avoid two at... |
584 |
struct rt6_info *rt = (struct rt6_info *)*dstp; |
a7ae19922 ipv6: Remove all ... |
585 586 |
int hlen = LL_RESERVED_SPACE(rt->dst.dev); int tlen = rt->dst.dev->needed_tailroom; |
1da177e4c Linux-2.6.12-rc2 |
587 |
|
d8d1f30b9 net-next: remove ... |
588 |
if (length > rt->dst.dev->mtu) { |
4c9483b2f ipv6: Convert to ... |
589 |
ipv6_local_error(sk, EMSGSIZE, fl6, rt->dst.dev->mtu); |
1da177e4c Linux-2.6.12-rc2 |
590 591 592 593 |
return -EMSGSIZE; } if (flags&MSG_PROBE) goto out; |
f5184d267 net: Allow netdev... |
594 |
skb = sock_alloc_send_skb(sk, |
a7ae19922 ipv6: Remove all ... |
595 |
length + hlen + tlen + 15, |
f5184d267 net: Allow netdev... |
596 |
flags & MSG_DONTWAIT, &err); |
1da177e4c Linux-2.6.12-rc2 |
597 |
if (skb == NULL) |
1ab1457c4 [NET] IPV6: Fix w... |
598 |
goto error; |
a7ae19922 ipv6: Remove all ... |
599 |
skb_reserve(skb, hlen); |
1da177e4c Linux-2.6.12-rc2 |
600 601 |
skb->priority = sk->sk_priority; |
4a19ec580 [NET]: Introducin... |
602 |
skb->mark = sk->sk_mark; |
d8d1f30b9 net-next: remove ... |
603 |
skb_dst_set(skb, &rt->dst); |
1789a640f raw: avoid two at... |
604 |
*dstp = NULL; |
1da177e4c Linux-2.6.12-rc2 |
605 |
|
1ced98e81 [SK_BUFF] ipv6: M... |
606 607 |
skb_put(skb, length); skb_reset_network_header(skb); |
0660e03f6 [SK_BUFF]: Introd... |
608 |
iph = ipv6_hdr(skb); |
1da177e4c Linux-2.6.12-rc2 |
609 610 |
skb->ip_summed = CHECKSUM_NONE; |
b0e380b1d [SK_BUFF]: unions... |
611 |
skb->transport_header = skb->network_header; |
1da177e4c Linux-2.6.12-rc2 |
612 613 614 |
err = memcpy_fromiovecend((void *)iph, from, 0, length); if (err) goto error_fault; |
edf391ff1 snmp: add missing... |
615 |
IP6_UPD_PO_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len); |
b2e0b385d netfilter: ipv6: ... |
616 |
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, |
d8d1f30b9 net-next: remove ... |
617 |
rt->dst.dev, dst_output); |
1da177e4c Linux-2.6.12-rc2 |
618 |
if (err > 0) |
6ce9e7b5f ip: Report qdisc ... |
619 |
err = net_xmit_errno(err); |
1da177e4c Linux-2.6.12-rc2 |
620 621 622 623 624 625 626 627 628 |
if (err) goto error; out: return 0; error_fault: err = -EFAULT; kfree_skb(skb); error: |
3bd653c84 netns: add net pa... |
629 |
IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS); |
6ce9e7b5f ip: Report qdisc ... |
630 631 |
if (err == -ENOBUFS && !np->recverr) err = 0; |
1ab1457c4 [NET] IPV6: Fix w... |
632 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
633 |
} |
4c9483b2f ipv6: Convert to ... |
634 |
static int rawv6_probe_proto_opt(struct flowi6 *fl6, struct msghdr *msg) |
1da177e4c Linux-2.6.12-rc2 |
635 636 637 638 |
{ struct iovec *iov; u8 __user *type = NULL; u8 __user *code = NULL; |
6e8f4d48b [IPV6] MIP6: Add ... |
639 |
u8 len = 0; |
1da177e4c Linux-2.6.12-rc2 |
640 641 642 643 |
int probed = 0; int i; if (!msg->msg_iov) |
a27b58fed [NET]: fix uacces... |
644 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
645 646 647 648 649 |
for (i = 0; i < msg->msg_iovlen; i++) { iov = &msg->msg_iov[i]; if (!iov) continue; |
4c9483b2f ipv6: Convert to ... |
650 |
switch (fl6->flowi6_proto) { |
1da177e4c Linux-2.6.12-rc2 |
651 652 653 654 655 656 657 658 659 660 661 662 663 664 |
case IPPROTO_ICMPV6: /* check if one-byte field is readable or not. */ if (iov->iov_base && iov->iov_len < 1) break; if (!type) { type = iov->iov_base; /* check if code field is readable or not. */ if (iov->iov_len > 1) code = type + 1; } else if (!code) code = iov->iov_base; if (type && code) { |
1958b856c net: Put fl6_* ma... |
665 666 |
if (get_user(fl6->fl6_icmp_type, type) || get_user(fl6->fl6_icmp_code, code)) |
a27b58fed [NET]: fix uacces... |
667 |
return -EFAULT; |
1da177e4c Linux-2.6.12-rc2 |
668 669 670 |
probed = 1; } break; |
6e8f4d48b [IPV6] MIP6: Add ... |
671 672 673 674 675 676 |
case IPPROTO_MH: if (iov->iov_base && iov->iov_len < 1) break; /* check if type field is readable or not. */ if (iov->iov_len > 2 - len) { u8 __user *p = iov->iov_base; |
1958b856c net: Put fl6_* ma... |
677 |
if (get_user(fl6->fl6_mh_type, &p[2 - len])) |
a27b58fed [NET]: fix uacces... |
678 |
return -EFAULT; |
6e8f4d48b [IPV6] MIP6: Add ... |
679 680 681 682 683 |
probed = 1; } else len += iov->iov_len; break; |
1da177e4c Linux-2.6.12-rc2 |
684 685 686 687 688 689 690 |
default: probed = 1; break; } if (probed) break; } |
a27b58fed [NET]: fix uacces... |
691 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
692 693 694 695 696 697 698 |
} static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, size_t len) { struct ipv6_txoptions opt_space; struct sockaddr_in6 * sin6 = (struct sockaddr_in6 *) msg->msg_name; |
20c59de2e ipv6: Refactor up... |
699 |
struct in6_addr *daddr, *final_p, final; |
1da177e4c Linux-2.6.12-rc2 |
700 701 702 703 704 705 |
struct inet_sock *inet = inet_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk); struct raw6_sock *rp = raw6_sk(sk); struct ipv6_txoptions *opt = NULL; struct ip6_flowlabel *flowlabel = NULL; struct dst_entry *dst = NULL; |
4c9483b2f ipv6: Convert to ... |
706 |
struct flowi6 fl6; |
1da177e4c Linux-2.6.12-rc2 |
707 708 |
int addr_len = msg->msg_namelen; int hlimit = -1; |
41a1f8ea4 [IPV6]: Support I... |
709 |
int tclass = -1; |
13b52cd44 IPv6: Add dontfra... |
710 |
int dontfrag = -1; |
1da177e4c Linux-2.6.12-rc2 |
711 712 713 714 |
u16 proto; int err; /* Rough check on arithmetic overflow, |
b59e139bb [IPv6]: Fix incor... |
715 |
better check is made in ip6_append_data(). |
1da177e4c Linux-2.6.12-rc2 |
716 |
*/ |
b59e139bb [IPv6]: Fix incor... |
717 |
if (len > INT_MAX) |
1da177e4c Linux-2.6.12-rc2 |
718 719 720 |
return -EMSGSIZE; /* Mirror BSD error message compatibility */ |
1ab1457c4 [NET] IPV6: Fix w... |
721 |
if (msg->msg_flags & MSG_OOB) |
1da177e4c Linux-2.6.12-rc2 |
722 723 724 |
return -EOPNOTSUPP; /* |
1ab1457c4 [NET] IPV6: Fix w... |
725 |
* Get and verify the address. |
1da177e4c Linux-2.6.12-rc2 |
726 |
*/ |
4c9483b2f ipv6: Convert to ... |
727 |
memset(&fl6, 0, sizeof(fl6)); |
1da177e4c Linux-2.6.12-rc2 |
728 |
|
4c9483b2f ipv6: Convert to ... |
729 |
fl6.flowi6_mark = sk->sk_mark; |
4a19ec580 [NET]: Introducin... |
730 |
|
1da177e4c Linux-2.6.12-rc2 |
731 |
if (sin6) { |
1ab1457c4 [NET] IPV6: Fix w... |
732 |
if (addr_len < SIN6_LEN_RFC2133) |
1da177e4c Linux-2.6.12-rc2 |
733 |
return -EINVAL; |
1ab1457c4 [NET] IPV6: Fix w... |
734 |
if (sin6->sin6_family && sin6->sin6_family != AF_INET6) |
a02cec215 net: return opera... |
735 |
return -EAFNOSUPPORT; |
1da177e4c Linux-2.6.12-rc2 |
736 737 738 739 740 |
/* port is the proto value [0..255] carried in nexthdr */ proto = ntohs(sin6->sin6_port); if (!proto) |
c720c7e83 inet: rename some... |
741 742 |
proto = inet->inet_num; else if (proto != inet->inet_num) |
a02cec215 net: return opera... |
743 |
return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
744 745 |
if (proto > 255) |
a02cec215 net: return opera... |
746 |
return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
747 748 749 |
daddr = &sin6->sin6_addr; if (np->sndflow) { |
4c9483b2f ipv6: Convert to ... |
750 751 752 |
fl6.flowlabel = sin6->sin6_flowinfo&IPV6_FLOWINFO_MASK; if (fl6.flowlabel&IPV6_FLOWLABEL_MASK) { flowlabel = fl6_sock_lookup(sk, fl6.flowlabel); |
1da177e4c Linux-2.6.12-rc2 |
753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 |
if (flowlabel == NULL) return -EINVAL; daddr = &flowlabel->dst; } } /* * Otherwise it will be difficult to maintain * sk->sk_dst_cache. */ if (sk->sk_state == TCP_ESTABLISHED && ipv6_addr_equal(daddr, &np->daddr)) daddr = &np->daddr; if (addr_len >= sizeof(struct sockaddr_in6) && sin6->sin6_scope_id && ipv6_addr_type(daddr)&IPV6_ADDR_LINKLOCAL) |
4c9483b2f ipv6: Convert to ... |
770 |
fl6.flowi6_oif = sin6->sin6_scope_id; |
1da177e4c Linux-2.6.12-rc2 |
771 |
} else { |
1ab1457c4 [NET] IPV6: Fix w... |
772 |
if (sk->sk_state != TCP_ESTABLISHED) |
1da177e4c Linux-2.6.12-rc2 |
773 |
return -EDESTADDRREQ; |
1ab1457c4 [NET] IPV6: Fix w... |
774 |
|
c720c7e83 inet: rename some... |
775 |
proto = inet->inet_num; |
1da177e4c Linux-2.6.12-rc2 |
776 |
daddr = &np->daddr; |
4c9483b2f ipv6: Convert to ... |
777 |
fl6.flowlabel = np->flow_label; |
1da177e4c Linux-2.6.12-rc2 |
778 |
} |
4c9483b2f ipv6: Convert to ... |
779 780 |
if (fl6.flowi6_oif == 0) fl6.flowi6_oif = sk->sk_bound_dev_if; |
1da177e4c Linux-2.6.12-rc2 |
781 782 783 784 785 |
if (msg->msg_controllen) { opt = &opt_space; memset(opt, 0, sizeof(struct ipv6_txoptions)); opt->tot_len = sizeof(struct ipv6_txoptions); |
ec0506dbe net: relax PKTINF... |
786 787 |
err = datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt, &hlimit, &tclass, &dontfrag); |
1da177e4c Linux-2.6.12-rc2 |
788 789 790 791 |
if (err < 0) { fl6_sock_release(flowlabel); return err; } |
4c9483b2f ipv6: Convert to ... |
792 793 |
if ((fl6.flowlabel&IPV6_FLOWLABEL_MASK) && !flowlabel) { flowlabel = fl6_sock_lookup(sk, fl6.flowlabel); |
1da177e4c Linux-2.6.12-rc2 |
794 795 796 797 798 799 800 801 |
if (flowlabel == NULL) return -EINVAL; } if (!(opt->opt_nflen|opt->opt_flen)) opt = NULL; } if (opt == NULL) opt = np->opt; |
df9890c31 [IPV6]: Fix sendi... |
802 803 804 |
if (flowlabel) opt = fl6_merge_options(&opt_space, flowlabel, opt); opt = ipv6_fixup_options(&opt_space, opt); |
1da177e4c Linux-2.6.12-rc2 |
805 |
|
4c9483b2f ipv6: Convert to ... |
806 807 |
fl6.flowi6_proto = proto; err = rawv6_probe_proto_opt(&fl6, msg); |
a27b58fed [NET]: fix uacces... |
808 809 |
if (err) goto out; |
1ab1457c4 [NET] IPV6: Fix w... |
810 |
|
876c7f419 [IPv6]: Change IP... |
811 |
if (!ipv6_addr_any(daddr)) |
4e3fd7a06 net: remove ipv6_... |
812 |
fl6.daddr = *daddr; |
876c7f419 [IPv6]: Change IP... |
813 |
else |
4c9483b2f ipv6: Convert to ... |
814 815 |
fl6.daddr.s6_addr[15] = 0x1; /* :: means loopback (BSD'ism) */ if (ipv6_addr_any(&fl6.saddr) && !ipv6_addr_any(&np->saddr)) |
4e3fd7a06 net: remove ipv6_... |
816 |
fl6.saddr = np->saddr; |
1da177e4c Linux-2.6.12-rc2 |
817 |
|
4c9483b2f ipv6: Convert to ... |
818 |
final_p = fl6_update_dst(&fl6, opt, &final); |
1da177e4c Linux-2.6.12-rc2 |
819 |
|
4c9483b2f ipv6: Convert to ... |
820 821 822 |
if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr)) fl6.flowi6_oif = np->mcast_oif; security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); |
1da177e4c Linux-2.6.12-rc2 |
823 |
|
4c9483b2f ipv6: Convert to ... |
824 |
dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true); |
68d0c6d34 ipv6: Consolidate... |
825 826 |
if (IS_ERR(dst)) { err = PTR_ERR(dst); |
1da177e4c Linux-2.6.12-rc2 |
827 |
goto out; |
14e50e57a [XFRM]: Allow pac... |
828 |
} |
1da177e4c Linux-2.6.12-rc2 |
829 |
if (hlimit < 0) { |
4c9483b2f ipv6: Convert to ... |
830 |
if (ipv6_addr_is_multicast(&fl6.daddr)) |
1da177e4c Linux-2.6.12-rc2 |
831 832 833 834 |
hlimit = np->mcast_hops; else hlimit = np->hop_limit; if (hlimit < 0) |
6b75d0908 [IPV6]: Optimize ... |
835 |
hlimit = ip6_dst_hoplimit(dst); |
1da177e4c Linux-2.6.12-rc2 |
836 |
} |
e651f03af inet6: Conversion... |
837 |
if (tclass < 0) |
e012d51cb [IPV6]: Fix tclas... |
838 |
tclass = np->tclass; |
41a1f8ea4 [IPV6]: Support I... |
839 |
|
13b52cd44 IPv6: Add dontfra... |
840 841 |
if (dontfrag < 0) dontfrag = np->dontfrag; |
1da177e4c Linux-2.6.12-rc2 |
842 843 844 845 |
if (msg->msg_flags&MSG_CONFIRM) goto do_confirm; back_from_confirm: |
1789a640f raw: avoid two at... |
846 |
if (inet->hdrincl) |
4c9483b2f ipv6: Convert to ... |
847 |
err = rawv6_send_hdrinc(sk, msg->msg_iov, len, &fl6, &dst, msg->msg_flags); |
1789a640f raw: avoid two at... |
848 |
else { |
1da177e4c Linux-2.6.12-rc2 |
849 |
lock_sock(sk); |
41a1f8ea4 [IPV6]: Support I... |
850 |
err = ip6_append_data(sk, ip_generic_getfrag, msg->msg_iov, |
4c9483b2f ipv6: Convert to ... |
851 |
len, 0, hlimit, tclass, opt, &fl6, (struct rt6_info*)dst, |
13b52cd44 IPv6: Add dontfra... |
852 |
msg->msg_flags, dontfrag); |
1da177e4c Linux-2.6.12-rc2 |
853 854 855 856 |
if (err) ip6_flush_pending_frames(sk); else if (!(msg->msg_flags & MSG_MORE)) |
4c9483b2f ipv6: Convert to ... |
857 |
err = rawv6_push_pending_frames(sk, &fl6, rp); |
3ef9d943d [IPV6]: Fix unbal... |
858 |
release_sock(sk); |
1da177e4c Linux-2.6.12-rc2 |
859 860 |
} done: |
6d3e85ecf [IPV6] Don't stor... |
861 |
dst_release(dst); |
1ab1457c4 [NET] IPV6: Fix w... |
862 |
out: |
1da177e4c Linux-2.6.12-rc2 |
863 864 865 866 867 868 869 870 871 |
fl6_sock_release(flowlabel); return err<0?err:len; do_confirm: dst_confirm(dst); if (!(msg->msg_flags & MSG_PROBE) || len) goto back_from_confirm; err = 0; goto done; } |
1ab1457c4 [NET] IPV6: Fix w... |
872 |
static int rawv6_seticmpfilter(struct sock *sk, int level, int optname, |
1da177e4c Linux-2.6.12-rc2 |
873 874 875 876 877 878 879 880 881 882 883 |
char __user *optval, int optlen) { switch (optname) { case ICMPV6_FILTER: if (optlen > sizeof(struct icmp6_filter)) optlen = sizeof(struct icmp6_filter); if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen)) return -EFAULT; return 0; default: return -ENOPROTOOPT; |
3ff50b799 [NET]: cleanup ex... |
884 |
} |
1da177e4c Linux-2.6.12-rc2 |
885 886 887 |
return 0; } |
1ab1457c4 [NET] IPV6: Fix w... |
888 |
static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, |
1da177e4c Linux-2.6.12-rc2 |
889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 |
char __user *optval, int __user *optlen) { int len; switch (optname) { case ICMPV6_FILTER: if (get_user(len, optlen)) return -EFAULT; if (len < 0) return -EINVAL; if (len > sizeof(struct icmp6_filter)) len = sizeof(struct icmp6_filter); if (put_user(len, optlen)) return -EFAULT; if (copy_to_user(optval, &raw6_sk(sk)->filter, len)) return -EFAULT; return 0; default: return -ENOPROTOOPT; |
3ff50b799 [NET]: cleanup ex... |
908 |
} |
1da177e4c Linux-2.6.12-rc2 |
909 910 911 |
return 0; } |
3fdadf7d2 [NET]: {get|set}s... |
912 |
static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, |
b7058842c net: Make setsock... |
913 |
char __user *optval, unsigned int optlen) |
1da177e4c Linux-2.6.12-rc2 |
914 915 916 |
{ struct raw6_sock *rp = raw6_sk(sk); int val; |
1ab1457c4 [NET] IPV6: Fix w... |
917 |
if (get_user(val, (int __user *)optval)) |
1da177e4c Linux-2.6.12-rc2 |
918 919 920 |
return -EFAULT; switch (optname) { |
207ec0abb ipv6: Reduce swit... |
921 922 923 924 925 926 927 928 929 930 931 932 933 |
case IPV6_CHECKSUM: if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 && level == IPPROTO_IPV6) { /* * RFC3542 tells that IPV6_CHECKSUM socket * option in the IPPROTO_IPV6 level is not * allowed on ICMPv6 sockets. * If you want to set it, use IPPROTO_RAW * level IPV6_CHECKSUM socket option * (Linux extension). */ return -EINVAL; } |
1a98d05f5 ipv6 RAW: Disallo... |
934 |
|
207ec0abb ipv6: Reduce swit... |
935 936 937 938 939 940 941 942 943 944 |
/* You may get strange result with a positive odd offset; RFC2292bis agrees with me. */ if (val > 0 && (val&1)) return -EINVAL; if (val < 0) { rp->checksum = 0; } else { rp->checksum = 1; rp->offset = val; } |
1da177e4c Linux-2.6.12-rc2 |
945 |
|
207ec0abb ipv6: Reduce swit... |
946 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
947 |
|
207ec0abb ipv6: Reduce swit... |
948 949 |
default: return -ENOPROTOOPT; |
1da177e4c Linux-2.6.12-rc2 |
950 951 |
} } |
3fdadf7d2 [NET]: {get|set}s... |
952 |
static int rawv6_setsockopt(struct sock *sk, int level, int optname, |
b7058842c net: Make setsock... |
953 |
char __user *optval, unsigned int optlen) |
1da177e4c Linux-2.6.12-rc2 |
954 |
{ |
207ec0abb ipv6: Reduce swit... |
955 956 957 |
switch (level) { case SOL_RAW: break; |
1da177e4c Linux-2.6.12-rc2 |
958 |
|
207ec0abb ipv6: Reduce swit... |
959 960 961 962 963 964 965 966 967 |
case SOL_ICMPV6: if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) return -EOPNOTSUPP; return rawv6_seticmpfilter(sk, level, optname, optval, optlen); case SOL_IPV6: if (optname == IPV6_CHECKSUM) break; default: return ipv6_setsockopt(sk, level, optname, optval, optlen); |
3ff50b799 [NET]: cleanup ex... |
968 |
} |
3fdadf7d2 [NET]: {get|set}s... |
969 970 971 972 973 |
return do_rawv6_setsockopt(sk, level, optname, optval, optlen); } #ifdef CONFIG_COMPAT static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname, |
b7058842c net: Make setsock... |
974 |
char __user *optval, unsigned int optlen) |
3fdadf7d2 [NET]: {get|set}s... |
975 |
{ |
543d9cfee [NET]: Identation... |
976 977 978 979 |
switch (level) { case SOL_RAW: break; case SOL_ICMPV6: |
c720c7e83 inet: rename some... |
980 |
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) |
543d9cfee [NET]: Identation... |
981 982 983 984 |
return -EOPNOTSUPP; return rawv6_seticmpfilter(sk, level, optname, optval, optlen); case SOL_IPV6: if (optname == IPV6_CHECKSUM) |
3fdadf7d2 [NET]: {get|set}s... |
985 |
break; |
543d9cfee [NET]: Identation... |
986 987 988 |
default: return compat_ipv6_setsockopt(sk, level, optname, optval, optlen); |
3ff50b799 [NET]: cleanup ex... |
989 |
} |
3fdadf7d2 [NET]: {get|set}s... |
990 991 992 993 994 995 996 997 998 |
return do_rawv6_setsockopt(sk, level, optname, optval, optlen); } #endif static int do_rawv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { struct raw6_sock *rp = raw6_sk(sk); int val, len; |
1da177e4c Linux-2.6.12-rc2 |
999 1000 1001 1002 1003 1004 |
if (get_user(len,optlen)) return -EFAULT; switch (optname) { case IPV6_CHECKSUM: |
1a98d05f5 ipv6 RAW: Disallo... |
1005 1006 1007 1008 1009 |
/* * We allow getsockopt() for IPPROTO_IPV6-level * IPV6_CHECKSUM socket option on ICMPv6 sockets * since RFC3542 is silent about it. */ |
1da177e4c Linux-2.6.12-rc2 |
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 |
if (rp->checksum == 0) val = -1; else val = rp->offset; break; default: return -ENOPROTOOPT; } len = min_t(unsigned int, sizeof(int), len); if (put_user(len, optlen)) return -EFAULT; if (copy_to_user(optval,&val,len)) return -EFAULT; return 0; } |
3fdadf7d2 [NET]: {get|set}s... |
1028 1029 1030 |
static int rawv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { |
207ec0abb ipv6: Reduce swit... |
1031 1032 1033 |
switch (level) { case SOL_RAW: break; |
3fdadf7d2 [NET]: {get|set}s... |
1034 |
|
207ec0abb ipv6: Reduce swit... |
1035 1036 1037 1038 1039 1040 1041 1042 1043 |
case SOL_ICMPV6: if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) return -EOPNOTSUPP; return rawv6_geticmpfilter(sk, level, optname, optval, optlen); case SOL_IPV6: if (optname == IPV6_CHECKSUM) break; default: return ipv6_getsockopt(sk, level, optname, optval, optlen); |
3ff50b799 [NET]: cleanup ex... |
1044 |
} |
3fdadf7d2 [NET]: {get|set}s... |
1045 1046 1047 1048 1049 |
return do_rawv6_getsockopt(sk, level, optname, optval, optlen); } #ifdef CONFIG_COMPAT static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname, |
543d9cfee [NET]: Identation... |
1050 |
char __user *optval, int __user *optlen) |
3fdadf7d2 [NET]: {get|set}s... |
1051 |
{ |
543d9cfee [NET]: Identation... |
1052 1053 1054 1055 |
switch (level) { case SOL_RAW: break; case SOL_ICMPV6: |
c720c7e83 inet: rename some... |
1056 |
if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) |
543d9cfee [NET]: Identation... |
1057 1058 1059 1060 |
return -EOPNOTSUPP; return rawv6_geticmpfilter(sk, level, optname, optval, optlen); case SOL_IPV6: if (optname == IPV6_CHECKSUM) |
3fdadf7d2 [NET]: {get|set}s... |
1061 |
break; |
543d9cfee [NET]: Identation... |
1062 1063 1064 |
default: return compat_ipv6_getsockopt(sk, level, optname, optval, optlen); |
3ff50b799 [NET]: cleanup ex... |
1065 |
} |
3fdadf7d2 [NET]: {get|set}s... |
1066 1067 1068 |
return do_rawv6_getsockopt(sk, level, optname, optval, optlen); } #endif |
1da177e4c Linux-2.6.12-rc2 |
1069 1070 |
static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg) { |
207ec0abb ipv6: Reduce swit... |
1071 1072 1073 |
switch (cmd) { case SIOCOUTQ: { int amount = sk_wmem_alloc_get(sk); |
31e6d363a net: correct off-... |
1074 |
|
207ec0abb ipv6: Reduce swit... |
1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 |
return put_user(amount, (int __user *)arg); } case SIOCINQ: { struct sk_buff *skb; int amount = 0; spin_lock_bh(&sk->sk_receive_queue.lock); skb = skb_peek(&sk->sk_receive_queue); if (skb != NULL) amount = skb->tail - skb->transport_header; spin_unlock_bh(&sk->sk_receive_queue.lock); return put_user(amount, (int __user *)arg); } |
1da177e4c Linux-2.6.12-rc2 |
1088 |
|
207ec0abb ipv6: Reduce swit... |
1089 |
default: |
7bc570c8b [IPV6] MROUTE: Su... |
1090 |
#ifdef CONFIG_IPV6_MROUTE |
207ec0abb ipv6: Reduce swit... |
1091 |
return ip6mr_ioctl(sk, cmd, (void __user *)arg); |
7bc570c8b [IPV6] MROUTE: Su... |
1092 |
#else |
207ec0abb ipv6: Reduce swit... |
1093 |
return -ENOIOCTLCMD; |
7bc570c8b [IPV6] MROUTE: Su... |
1094 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
1095 1096 |
} } |
e2d57766e net: Provide comp... |
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 |
#ifdef CONFIG_COMPAT static int compat_rawv6_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg) { switch (cmd) { case SIOCOUTQ: case SIOCINQ: return -ENOIOCTLCMD; default: #ifdef CONFIG_IPV6_MROUTE return ip6mr_compat_ioctl(sk, cmd, compat_ptr(arg)); #else return -ENOIOCTLCMD; #endif } } #endif |
1da177e4c Linux-2.6.12-rc2 |
1113 1114 |
static void rawv6_close(struct sock *sk, long timeout) { |
c720c7e83 inet: rename some... |
1115 |
if (inet_sk(sk)->inet_num == IPPROTO_RAW) |
725a8ff04 ipv6: remove unus... |
1116 |
ip6_ra_control(sk, -1); |
7bc570c8b [IPV6] MROUTE: Su... |
1117 |
ip6mr_sk_done(sk); |
1da177e4c Linux-2.6.12-rc2 |
1118 1119 |
sk_common_release(sk); } |
7d06b2e05 net: change proto... |
1120 |
static void raw6_destroy(struct sock *sk) |
22dd48502 raw: Raw socket l... |
1121 1122 1123 1124 |
{ lock_sock(sk); ip6_flush_pending_frames(sk); release_sock(sk); |
f23d60de7 ipv6: Fix duplica... |
1125 |
|
7d06b2e05 net: change proto... |
1126 |
inet6_destroy_sock(sk); |
22dd48502 raw: Raw socket l... |
1127 |
} |
1da177e4c Linux-2.6.12-rc2 |
1128 1129 |
static int rawv6_init_sk(struct sock *sk) { |
f48d5ff1e [IPV6] RAW: Add c... |
1130 |
struct raw6_sock *rp = raw6_sk(sk); |
c720c7e83 inet: rename some... |
1131 |
switch (inet_sk(sk)->inet_num) { |
f48d5ff1e [IPV6] RAW: Add c... |
1132 |
case IPPROTO_ICMPV6: |
1da177e4c Linux-2.6.12-rc2 |
1133 1134 |
rp->checksum = 1; rp->offset = 2; |
f48d5ff1e [IPV6] RAW: Add c... |
1135 1136 1137 1138 1139 1140 1141 |
break; case IPPROTO_MH: rp->checksum = 1; rp->offset = 4; break; default: break; |
1da177e4c Linux-2.6.12-rc2 |
1142 |
} |
a02cec215 net: return opera... |
1143 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1144 1145 1146 |
} struct proto rawv6_prot = { |
543d9cfee [NET]: Identation... |
1147 1148 1149 |
.name = "RAWv6", .owner = THIS_MODULE, .close = rawv6_close, |
22dd48502 raw: Raw socket l... |
1150 |
.destroy = raw6_destroy, |
543d9cfee [NET]: Identation... |
1151 1152 1153 1154 |
.connect = ip6_datagram_connect, .disconnect = udp_disconnect, .ioctl = rawv6_ioctl, .init = rawv6_init_sk, |
543d9cfee [NET]: Identation... |
1155 1156 1157 1158 1159 1160 |
.setsockopt = rawv6_setsockopt, .getsockopt = rawv6_getsockopt, .sendmsg = rawv6_sendmsg, .recvmsg = rawv6_recvmsg, .bind = rawv6_bind, .backlog_rcv = rawv6_rcv_skb, |
fc8717baa [RAW]: Add raw_ha... |
1161 1162 |
.hash = raw_hash_sk, .unhash = raw_unhash_sk, |
543d9cfee [NET]: Identation... |
1163 |
.obj_size = sizeof(struct raw6_sock), |
fc8717baa [RAW]: Add raw_ha... |
1164 |
.h.raw_hash = &raw_v6_hashinfo, |
3fdadf7d2 [NET]: {get|set}s... |
1165 |
#ifdef CONFIG_COMPAT |
543d9cfee [NET]: Identation... |
1166 1167 |
.compat_setsockopt = compat_rawv6_setsockopt, .compat_getsockopt = compat_rawv6_getsockopt, |
e2d57766e net: Provide comp... |
1168 |
.compat_ioctl = compat_rawv6_ioctl, |
3fdadf7d2 [NET]: {get|set}s... |
1169 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
1170 1171 1172 |
}; #ifdef CONFIG_PROC_FS |
1da177e4c Linux-2.6.12-rc2 |
1173 1174 1175 |
static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) { struct ipv6_pinfo *np = inet6_sk(sp); |
b71d1d426 inet: constify ip... |
1176 |
const struct in6_addr *dest, *src; |
1da177e4c Linux-2.6.12-rc2 |
1177 1178 1179 1180 1181 |
__u16 destp, srcp; dest = &np->daddr; src = &np->rcv_saddr; destp = 0; |
c720c7e83 inet: rename some... |
1182 |
srcp = inet_sk(sp)->inet_num; |
1da177e4c Linux-2.6.12-rc2 |
1183 1184 |
seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " |
71338aa7d net: convert %p u... |
1185 1186 |
"%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d ", |
1da177e4c Linux-2.6.12-rc2 |
1187 1188 1189 1190 1191 |
i, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], srcp, dest->s6_addr32[0], dest->s6_addr32[1], dest->s6_addr32[2], dest->s6_addr32[3], destp, |
1ab1457c4 [NET] IPV6: Fix w... |
1192 |
sp->sk_state, |
31e6d363a net: correct off-... |
1193 1194 |
sk_wmem_alloc_get(sp), sk_rmem_alloc_get(sp), |
1da177e4c Linux-2.6.12-rc2 |
1195 1196 1197 |
0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), |
a92aa318b [IPV6]: Add raw6 ... |
1198 |
atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops)); |
1da177e4c Linux-2.6.12-rc2 |
1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 |
} static int raw6_seq_show(struct seq_file *seq, void *v) { if (v == SEQ_START_TOKEN) seq_printf(seq, " sl " "local_address " "remote_address " "st tx_queue rx_queue tr tm->when retrnsmt" |
cb61cb9b8 udp: sk_drops han... |
1209 1210 |
" uid timeout inode ref pointer drops "); |
1da177e4c Linux-2.6.12-rc2 |
1211 |
else |
42a73808e [RAW]: Consolidat... |
1212 |
raw6_sock_seq_show(seq, v, raw_seq_private(seq)->bucket); |
1da177e4c Linux-2.6.12-rc2 |
1213 1214 |
return 0; } |
56b3d975b [NET]: Make all i... |
1215 |
static const struct seq_operations raw6_seq_ops = { |
42a73808e [RAW]: Consolidat... |
1216 1217 1218 |
.start = raw_seq_start, .next = raw_seq_next, .stop = raw_seq_stop, |
1da177e4c Linux-2.6.12-rc2 |
1219 1220 1221 1222 1223 |
.show = raw6_seq_show, }; static int raw6_seq_open(struct inode *inode, struct file *file) { |
3046d7674 [RAW]: Wrong cont... |
1224 |
return raw_seq_open(inode, file, &raw_v6_hashinfo, &raw6_seq_ops); |
1da177e4c Linux-2.6.12-rc2 |
1225 |
} |
9a32144e9 [PATCH] mark stru... |
1226 |
static const struct file_operations raw6_seq_fops = { |
1da177e4c Linux-2.6.12-rc2 |
1227 1228 1229 1230 |
.owner = THIS_MODULE, .open = raw6_seq_open, .read = seq_read, .llseek = seq_lseek, |
f51d599fb [NETNS][RAW]: Mak... |
1231 |
.release = seq_release_net, |
1da177e4c Linux-2.6.12-rc2 |
1232 |
}; |
2c8c1e729 net: spread __net... |
1233 |
static int __net_init raw6_init_net(struct net *net) |
1da177e4c Linux-2.6.12-rc2 |
1234 |
{ |
a308da162 [NETNS][RAW]: Cre... |
1235 |
if (!proc_net_fops_create(net, "raw6", S_IRUGO, &raw6_seq_fops)) |
1da177e4c Linux-2.6.12-rc2 |
1236 |
return -ENOMEM; |
a308da162 [NETNS][RAW]: Cre... |
1237 |
|
1da177e4c Linux-2.6.12-rc2 |
1238 1239 |
return 0; } |
2c8c1e729 net: spread __net... |
1240 |
static void __net_exit raw6_exit_net(struct net *net) |
a308da162 [NETNS][RAW]: Cre... |
1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 |
{ proc_net_remove(net, "raw6"); } static struct pernet_operations raw6_net_ops = { .init = raw6_init_net, .exit = raw6_exit_net, }; int __init raw6_proc_init(void) { return register_pernet_subsys(&raw6_net_ops); } |
1da177e4c Linux-2.6.12-rc2 |
1254 1255 |
void raw6_proc_exit(void) { |
a308da162 [NETNS][RAW]: Cre... |
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unregister_pernet_subsys(&raw6_net_ops); |
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} #endif /* CONFIG_PROC_FS */ |
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/* Same as inet6_dgram_ops, sans udp_poll. */ static const struct proto_ops inet6_sockraw_ops = { .family = PF_INET6, .owner = THIS_MODULE, .release = inet6_release, .bind = inet6_bind, .connect = inet_dgram_connect, /* ok */ .socketpair = sock_no_socketpair, /* a do nothing */ .accept = sock_no_accept, /* a do nothing */ .getname = inet6_getname, .poll = datagram_poll, /* ok */ .ioctl = inet6_ioctl, /* must change */ .listen = sock_no_listen, /* ok */ .shutdown = inet_shutdown, /* ok */ .setsockopt = sock_common_setsockopt, /* ok */ .getsockopt = sock_common_getsockopt, /* ok */ .sendmsg = inet_sendmsg, /* ok */ .recvmsg = sock_common_recvmsg, /* ok */ .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_setsockopt = compat_sock_common_setsockopt, .compat_getsockopt = compat_sock_common_getsockopt, #endif }; static struct inet_protosw rawv6_protosw = { .type = SOCK_RAW, .protocol = IPPROTO_IP, /* wild card */ .prot = &rawv6_prot, .ops = &inet6_sockraw_ops, |
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.no_check = UDP_CSUM_DEFAULT, .flags = INET_PROTOSW_REUSE, }; int __init rawv6_init(void) { int ret; ret = inet6_register_protosw(&rawv6_protosw); if (ret) goto out; out: return ret; } |
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void rawv6_exit(void) |
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{ inet6_unregister_protosw(&rawv6_protosw); } |