X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;ds=sidebyside;f=net%2Fipv4%2Fraw.c;h=ce154b47f1da08fd5c0ef874920bbb70aa1e90bb;hb=348c4b9078ba8d9bef2e453c7ded07fde4748c79;hp=93624a32eb9ae385f8f3f7fcd53405be77194bed;hpb=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 93624a3..ce154b4 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -5,9 +5,7 @@ * * RAW - implementation of IP "raw" sockets. * - * Version: $Id: raw.c,v 1.64 2002/02/01 22:01:04 davem Exp $ - * - * Authors: Ross Biro, + * Authors: Ross Biro * Fred N. van Kempen, * * Fixes: @@ -38,14 +36,13 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ - -#include + +#include #include #include #include #include #include -#include #include #include #include @@ -59,8 +56,8 @@ #include #include #include -#include #include +#include #include #include #include @@ -71,6 +68,7 @@ #include #include #include +#include #include #include #include @@ -80,40 +78,46 @@ #include #include -struct hlist_head raw_v4_htable[RAWV4_HTABLE_SIZE]; -DEFINE_RWLOCK(raw_v4_lock); +static struct raw_hashinfo raw_v4_hashinfo = { + .lock = __RW_LOCK_UNLOCKED(raw_v4_hashinfo.lock), +}; -static void raw_v4_hash(struct sock *sk) +void raw_hash_sk(struct sock *sk) { - struct hlist_head *head = &raw_v4_htable[inet_sk(sk)->num & - (RAWV4_HTABLE_SIZE - 1)]; + struct raw_hashinfo *h = sk->sk_prot->h.raw_hash; + struct hlist_head *head; + + head = &h->ht[inet_sk(sk)->inet_num & (RAW_HTABLE_SIZE - 1)]; - write_lock_bh(&raw_v4_lock); + write_lock_bh(&h->lock); sk_add_node(sk, head); - sock_prot_inc_use(sk->sk_prot); - write_unlock_bh(&raw_v4_lock); + sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); + write_unlock_bh(&h->lock); } +EXPORT_SYMBOL_GPL(raw_hash_sk); -static void raw_v4_unhash(struct sock *sk) +void raw_unhash_sk(struct sock *sk) { - write_lock_bh(&raw_v4_lock); + struct raw_hashinfo *h = sk->sk_prot->h.raw_hash; + + write_lock_bh(&h->lock); if (sk_del_node_init(sk)) - sock_prot_dec_use(sk->sk_prot); - write_unlock_bh(&raw_v4_lock); + sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); + write_unlock_bh(&h->lock); } +EXPORT_SYMBOL_GPL(raw_unhash_sk); -struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num, - unsigned long raddr, unsigned long laddr, - int dif) +static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk, + unsigned short num, __be32 raddr, __be32 laddr, int dif) { struct hlist_node *node; sk_for_each_from(sk, node) { struct inet_sock *inet = inet_sk(sk); - if (inet->num == num && - !(inet->daddr && inet->daddr != raddr) && - !(inet->rcv_saddr && inet->rcv_saddr != laddr) && + if (net_eq(sock_net(sk), net) && inet->inet_num == num && + !(inet->inet_daddr && inet->inet_daddr != raddr) && + !(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) && !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)) goto found; /* gotcha */ } @@ -133,7 +137,7 @@ static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb) if (!pskb_may_pull(skb, sizeof(struct icmphdr))) return 1; - type = skb->h.icmph->type; + type = icmp_hdr(skb)->type; if (type < 32) { __u32 data = raw_sk(sk)->filter.data; @@ -150,20 +154,25 @@ static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb) * RFC 1122: SHOULD pass TOS value up to the transport layer. * -> It does. And not only TOS, but all IP header. */ -void raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash) +static int raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash) { struct sock *sk; struct hlist_head *head; + int delivered = 0; + struct net *net; - read_lock(&raw_v4_lock); - head = &raw_v4_htable[hash]; + read_lock(&raw_v4_hashinfo.lock); + head = &raw_v4_hashinfo.ht[hash]; if (hlist_empty(head)) goto out; - sk = __raw_v4_lookup(__sk_head(head), iph->protocol, + + net = dev_net(skb->dev); + sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol, iph->saddr, iph->daddr, skb->dev->ifindex); while (sk) { + delivered = 1; if (iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) { struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); @@ -171,19 +180,38 @@ void raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash) if (clone) raw_rcv(sk, clone); } - sk = __raw_v4_lookup(sk_next(sk), iph->protocol, + sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol, iph->saddr, iph->daddr, skb->dev->ifindex); } out: - read_unlock(&raw_v4_lock); + read_unlock(&raw_v4_hashinfo.lock); + return delivered; } -void raw_err (struct sock *sk, struct sk_buff *skb, u32 info) +int raw_local_deliver(struct sk_buff *skb, int protocol) +{ + int hash; + struct sock *raw_sk; + + hash = protocol & (RAW_HTABLE_SIZE - 1); + raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]); + + /* If there maybe a raw socket we must check - if not we + * don't care less + */ + if (raw_sk && !raw_v4_input(skb, ip_hdr(skb), hash)) + raw_sk = NULL; + + return raw_sk != NULL; + +} + +static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info) { struct inet_sock *inet = inet_sk(sk); - int type = skb->h.icmph->type; - int code = skb->h.icmph->code; + const int type = icmp_hdr(skb)->type; + const int code = icmp_hdr(skb)->code; int err = 0; int harderr = 0; @@ -219,7 +247,7 @@ void raw_err (struct sock *sk, struct sk_buff *skb, u32 info) } if (inet->recverr) { - struct iphdr *iph = (struct iphdr*)skb->data; + struct iphdr *iph = (struct iphdr *)skb->data; u8 *payload = skb->data + (iph->ihl << 2); if (inet->hdrincl) @@ -233,12 +261,37 @@ void raw_err (struct sock *sk, struct sk_buff *skb, u32 info) } } +void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info) +{ + int hash; + struct sock *raw_sk; + struct iphdr *iph; + struct net *net; + + hash = protocol & (RAW_HTABLE_SIZE - 1); + + read_lock(&raw_v4_hashinfo.lock); + raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]); + if (raw_sk != NULL) { + iph = (struct iphdr *)skb->data; + net = dev_net(skb->dev); + + while ((raw_sk = __raw_v4_lookup(net, raw_sk, protocol, + iph->daddr, iph->saddr, + skb->dev->ifindex)) != NULL) { + raw_err(raw_sk, skb, info); + raw_sk = sk_next(raw_sk); + iph = (struct iphdr *)skb->data; + } + } + read_unlock(&raw_v4_hashinfo.lock); +} + static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb) { /* Charge it to the socket. */ - + if (sock_queue_rcv_skb(sk, skb) < 0) { - /* FIXME: increment a raw drops counter here */ kfree_skb(skb); return NET_RX_DROP; } @@ -249,56 +302,73 @@ static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb) int raw_rcv(struct sock *sk, struct sk_buff *skb) { if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) { + atomic_inc(&sk->sk_drops); kfree_skb(skb); return NET_RX_DROP; } + nf_reset(skb); - skb_push(skb, skb->data - skb->nh.raw); + skb_push(skb, skb->data - skb_network_header(skb)); raw_rcv_skb(sk, skb); return 0; } -static int raw_send_hdrinc(struct sock *sk, void *from, int length, - struct rtable *rt, +static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, + struct rtable *rt, unsigned int flags) { struct inet_sock *inet = inet_sk(sk); - int hh_len; + struct net *net = sock_net(sk); struct iphdr *iph; struct sk_buff *skb; + unsigned int iphlen; int err; if (length > rt->u.dst.dev->mtu) { - ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->dport, + ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->inet_dport, rt->u.dst.dev->mtu); return -EMSGSIZE; } if (flags&MSG_PROBE) goto out; - hh_len = LL_RESERVED_SPACE(rt->u.dst.dev); - - skb = sock_alloc_send_skb(sk, length+hh_len+15, - flags&MSG_DONTWAIT, &err); + skb = sock_alloc_send_skb(sk, + length + LL_ALLOCATED_SPACE(rt->u.dst.dev) + 15, + flags & MSG_DONTWAIT, &err); if (skb == NULL) - goto error; - skb_reserve(skb, hh_len); + goto error; + skb_reserve(skb, LL_RESERVED_SPACE(rt->u.dst.dev)); skb->priority = sk->sk_priority; - skb->dst = dst_clone(&rt->u.dst); + skb->mark = sk->sk_mark; + skb_dst_set(skb, dst_clone(&rt->u.dst)); - skb->nh.iph = iph = (struct iphdr *)skb_put(skb, length); + skb_reset_network_header(skb); + iph = ip_hdr(skb); + skb_put(skb, length); skb->ip_summed = CHECKSUM_NONE; - skb->h.raw = skb->nh.raw; - err = memcpy_fromiovecend((void *)iph, from, 0, length); - if (err) - goto error_fault; + skb->transport_header = skb->network_header; + err = -EFAULT; + if (memcpy_fromiovecend((void *)iph, from, 0, length)) + goto error_free; + + iphlen = iph->ihl * 4; + + /* + * We don't want to modify the ip header, but we do need to + * be sure that it won't cause problems later along the network + * stack. Specifically we want to make sure that iph->ihl is a + * sane value. If ihl points beyond the length of the buffer passed + * in, reject the frame as invalid + */ + err = -EINVAL; + if (iphlen > length) + goto error_free; - /* We don't modify invalid header */ - if (length >= sizeof(*iph) && iph->ihl * 4 <= length) { + if (iphlen >= sizeof(*iph)) { if (!iph->saddr) iph->saddr = rt->rt_src; iph->check = 0; @@ -308,34 +378,38 @@ static int raw_send_hdrinc(struct sock *sk, void *from, int length, iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); } + if (iph->protocol == IPPROTO_ICMP) + icmp_out_count(net, ((struct icmphdr *) + skb_transport_header(skb))->type); - err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev, + err = NF_HOOK(PF_INET, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev, dst_output); if (err > 0) - err = inet->recverr ? net_xmit_errno(err) : 0; + err = net_xmit_errno(err); if (err) goto error; out: return 0; -error_fault: - err = -EFAULT; +error_free: kfree_skb(skb); error: - IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS); - return err; + IP_INC_STATS(net, IPSTATS_MIB_OUTDISCARDS); + if (err == -ENOBUFS && !inet->recverr) + err = 0; + return err; } -static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg) +static int raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg) { struct iovec *iov; u8 __user *type = NULL; u8 __user *code = NULL; int probed = 0; - int i; + unsigned int i; if (!msg->msg_iov) - return; + return 0; for (i = 0; i < msg->msg_iovlen; i++) { iov = &msg->msg_iov[i]; @@ -357,8 +431,9 @@ static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg) code = iov->iov_base; if (type && code) { - get_user(fl->fl_icmp_type, type); - __get_user(fl->fl_icmp_code, code); + if (get_user(fl->fl_icmp_type, type) || + get_user(fl->fl_icmp_code, code)) + return -EFAULT; probed = 1; } break; @@ -369,6 +444,7 @@ static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg) if (probed) break; } + return 0; } static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, @@ -378,13 +454,13 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, struct ipcm_cookie ipc; struct rtable *rt = NULL; int free = 0; - u32 daddr; - u32 saddr; + __be32 daddr; + __be32 saddr; u8 tos; int err; err = -EMSGSIZE; - if (len < 0 || len > 0xFFFF) + if (len > 0xFFFF) goto out; /* @@ -394,13 +470,13 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, err = -EOPNOTSUPP; if (msg->msg_flags & MSG_OOB) /* Mirror BSD error message */ goto out; /* compatibility */ - + /* - * Get and verify the address. + * Get and verify the address. */ if (msg->msg_namelen) { - struct sockaddr_in *usin = (struct sockaddr_in*)msg->msg_name; + struct sockaddr_in *usin = (struct sockaddr_in *)msg->msg_name; err = -EINVAL; if (msg->msg_namelen < sizeof(*usin)) goto out; @@ -421,17 +497,18 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, */ } else { err = -EDESTADDRREQ; - if (sk->sk_state != TCP_ESTABLISHED) + if (sk->sk_state != TCP_ESTABLISHED) goto out; - daddr = inet->daddr; + daddr = inet->inet_daddr; } - ipc.addr = inet->saddr; + ipc.addr = inet->inet_saddr; ipc.opt = NULL; + ipc.shtx.flags = 0; ipc.oif = sk->sk_bound_dev_if; if (msg->msg_controllen) { - err = ip_cmsg_send(msg, &ipc); + err = ip_cmsg_send(sock_net(sk), msg, &ipc); if (err) goto out; if (ipc.opt) @@ -461,7 +538,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (msg->msg_flags & MSG_DONTROUTE) tos |= RTO_ONLINK; - if (MULTICAST(daddr)) { + if (ipv4_is_multicast(daddr)) { if (!ipc.oif) ipc.oif = inet->mc_index; if (!saddr) @@ -470,17 +547,22 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, { struct flowi fl = { .oif = ipc.oif, + .mark = sk->sk_mark, .nl_u = { .ip4_u = { .daddr = daddr, .saddr = saddr, .tos = tos } }, .proto = inet->hdrincl ? IPPROTO_RAW : - sk->sk_protocol, + sk->sk_protocol, }; - if (!inet->hdrincl) - raw_probe_proto_opt(&fl, msg); + if (!inet->hdrincl) { + err = raw_probe_proto_opt(&fl, msg); + if (err) + goto done; + } - err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT)); + security_sk_classify_flow(sk, &fl); + err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1); } if (err) goto done; @@ -494,19 +576,22 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, back_from_confirm: if (inet->hdrincl) - err = raw_send_hdrinc(sk, msg->msg_iov, len, + err = raw_send_hdrinc(sk, msg->msg_iov, len, rt, msg->msg_flags); - + else { if (!ipc.addr) ipc.addr = rt->rt_dst; lock_sock(sk); err = ip_append_data(sk, ip_generic_getfrag, msg->msg_iov, len, 0, - &ipc, rt, msg->msg_flags); + &ipc, &rt, msg->msg_flags); if (err) ip_flush_pending_frames(sk); - else if (!(msg->msg_flags & MSG_MORE)) + else if (!(msg->msg_flags & MSG_MORE)) { err = ip_push_pending_frames(sk); + if (err == -ENOBUFS && !inet->recverr) + err = 0; + } release_sock(sk); } done: @@ -514,7 +599,10 @@ done: kfree(ipc.opt); ip_rt_put(rt); -out: return err < 0 ? err : len; +out: + if (err < 0) + return err; + return len; do_confirm: dst_confirm(&rt->u.dst); @@ -526,7 +614,7 @@ do_confirm: static void raw_close(struct sock *sk, long timeout) { - /* + /* * Raw sockets may have direct kernel refereneces. Kill them. */ ip_ra_control(sk, 0, NULL); @@ -534,6 +622,13 @@ static void raw_close(struct sock *sk, long timeout) sk_common_release(sk); } +static void raw_destroy(struct sock *sk) +{ + lock_sock(sk); + ip_flush_pending_frames(sk); + release_sock(sk); +} + /* This gets rid of all the nasties in af_inet. -DaveM */ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) { @@ -544,14 +639,14 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in)) goto out; - chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr); + chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr); ret = -EADDRNOTAVAIL; if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) goto out; - inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr; + inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr; if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST) - inet->saddr = 0; /* Use device */ + inet->inet_saddr = 0; /* Use device */ sk_dst_reset(sk); ret = 0; out: return ret; @@ -596,12 +691,13 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (err) goto done; - sock_recv_timestamp(msg, sk, skb); + sock_recv_ts_and_drops(msg, sk, skb); /* Copy the address. */ if (sin) { sin->sin_family = AF_INET; - sin->sin_addr.s_addr = skb->nh.iph->saddr; + sin->sin_addr.s_addr = ip_hdr(skb)->saddr; + sin->sin_port = 0; memset(&sin->sin_zero, 0, sizeof(sin->sin_zero)); } if (inet->cmsg_flags) @@ -610,14 +706,17 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, copied = skb->len; done: skb_free_datagram(sk, skb); -out: return err ? err : copied; +out: + if (err) + return err; + return copied; } static int raw_init(struct sock *sk) { struct raw_sock *rp = raw_sk(sk); - if (inet_sk(sk)->num == IPPROTO_ICMP) + if (inet_sk(sk)->inet_num == IPPROTO_ICMP) memset(&rp->filter, 0, sizeof(rp->filter)); return 0; } @@ -650,14 +749,11 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o out: return ret; } -static int raw_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, int optlen) +static int do_raw_setsockopt(struct sock *sk, int level, int optname, + char __user *optval, unsigned int optlen) { - if (level != SOL_RAW) - return ip_setsockopt(sk, level, optname, optval, optlen); - if (optname == ICMP_FILTER) { - if (inet_sk(sk)->num != IPPROTO_ICMP) + if (inet_sk(sk)->inet_num != IPPROTO_ICMP) return -EOPNOTSUPP; else return raw_seticmpfilter(sk, optval, optlen); @@ -665,14 +761,29 @@ static int raw_setsockopt(struct sock *sk, int level, int optname, return -ENOPROTOOPT; } -static int raw_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) +static int raw_setsockopt(struct sock *sk, int level, int optname, + char __user *optval, unsigned int optlen) { if (level != SOL_RAW) - return ip_getsockopt(sk, level, optname, optval, optlen); + return ip_setsockopt(sk, level, optname, optval, optlen); + return do_raw_setsockopt(sk, level, optname, optval, optlen); +} +#ifdef CONFIG_COMPAT +static int compat_raw_setsockopt(struct sock *sk, int level, int optname, + char __user *optval, unsigned int optlen) +{ + if (level != SOL_RAW) + return compat_ip_setsockopt(sk, level, optname, optval, optlen); + return do_raw_setsockopt(sk, level, optname, optval, optlen); +} +#endif + +static int do_raw_getsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen) +{ if (optname == ICMP_FILTER) { - if (inet_sk(sk)->num != IPPROTO_ICMP) + if (inet_sk(sk)->inet_num != IPPROTO_ICMP) return -EOPNOTSUPP; else return raw_geticmpfilter(sk, optval, optlen); @@ -680,22 +791,41 @@ static int raw_getsockopt(struct sock *sk, int level, int optname, return -ENOPROTOOPT; } +static int raw_getsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen) +{ + if (level != SOL_RAW) + return ip_getsockopt(sk, level, optname, optval, optlen); + return do_raw_getsockopt(sk, level, optname, optval, optlen); +} + +#ifdef CONFIG_COMPAT +static int compat_raw_getsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen) +{ + if (level != SOL_RAW) + return compat_ip_getsockopt(sk, level, optname, optval, optlen); + return do_raw_getsockopt(sk, level, optname, optval, optlen); +} +#endif + static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg) { switch (cmd) { case SIOCOUTQ: { - int amount = atomic_read(&sk->sk_wmem_alloc); + int amount = sk_wmem_alloc_get(sk); + return put_user(amount, (int __user *)arg); } case SIOCINQ: { struct sk_buff *skb; int amount = 0; - spin_lock_irq(&sk->sk_receive_queue.lock); + spin_lock_bh(&sk->sk_receive_queue.lock); skb = skb_peek(&sk->sk_receive_queue); if (skb != NULL) amount = skb->len; - spin_unlock_irq(&sk->sk_receive_queue.lock); + spin_unlock_bh(&sk->sk_receive_queue.lock); return put_user(amount, (int __user *)arg); } @@ -709,41 +839,42 @@ static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg) } struct proto raw_prot = { - .name = "RAW", - .owner = THIS_MODULE, - .close = raw_close, - .connect = ip4_datagram_connect, - .disconnect = udp_disconnect, - .ioctl = raw_ioctl, - .init = raw_init, - .setsockopt = raw_setsockopt, - .getsockopt = raw_getsockopt, - .sendmsg = raw_sendmsg, - .recvmsg = raw_recvmsg, - .bind = raw_bind, - .backlog_rcv = raw_rcv_skb, - .hash = raw_v4_hash, - .unhash = raw_v4_unhash, - .obj_size = sizeof(struct raw_sock), + .name = "RAW", + .owner = THIS_MODULE, + .close = raw_close, + .destroy = raw_destroy, + .connect = ip4_datagram_connect, + .disconnect = udp_disconnect, + .ioctl = raw_ioctl, + .init = raw_init, + .setsockopt = raw_setsockopt, + .getsockopt = raw_getsockopt, + .sendmsg = raw_sendmsg, + .recvmsg = raw_recvmsg, + .bind = raw_bind, + .backlog_rcv = raw_rcv_skb, + .hash = raw_hash_sk, + .unhash = raw_unhash_sk, + .obj_size = sizeof(struct raw_sock), + .h.raw_hash = &raw_v4_hashinfo, +#ifdef CONFIG_COMPAT + .compat_setsockopt = compat_raw_setsockopt, + .compat_getsockopt = compat_raw_getsockopt, +#endif }; #ifdef CONFIG_PROC_FS -struct raw_iter_state { - int bucket; -}; - -#define raw_seq_private(seq) ((struct raw_iter_state *)(seq)->private) - static struct sock *raw_get_first(struct seq_file *seq) { struct sock *sk; - struct raw_iter_state* state = raw_seq_private(seq); + struct raw_iter_state *state = raw_seq_private(seq); - for (state->bucket = 0; state->bucket < RAWV4_HTABLE_SIZE; ++state->bucket) { + for (state->bucket = 0; state->bucket < RAW_HTABLE_SIZE; + ++state->bucket) { struct hlist_node *node; - sk_for_each(sk, node, &raw_v4_htable[state->bucket]) - if (sk->sk_family == PF_INET) + sk_for_each(sk, node, &state->h->ht[state->bucket]) + if (sock_net(sk) == seq_file_net(seq)) goto found; } sk = NULL; @@ -753,16 +884,16 @@ found: static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk) { - struct raw_iter_state* state = raw_seq_private(seq); + struct raw_iter_state *state = raw_seq_private(seq); do { sk = sk_next(sk); try_again: ; - } while (sk && sk->sk_family != PF_INET); + } while (sk && sock_net(sk) != seq_file_net(seq)); - if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) { - sk = sk_head(&raw_v4_htable[state->bucket]); + if (!sk && ++state->bucket < RAW_HTABLE_SIZE) { + sk = sk_head(&state->h->ht[state->bucket]); goto try_again; } return sk; @@ -778,13 +909,16 @@ static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos) return pos ? NULL : sk; } -static void *raw_seq_start(struct seq_file *seq, loff_t *pos) +void *raw_seq_start(struct seq_file *seq, loff_t *pos) { - read_lock(&raw_v4_lock); + struct raw_iter_state *state = raw_seq_private(seq); + + read_lock(&state->h->lock); return *pos ? raw_get_idx(seq, *pos - 1) : SEQ_START_TOKEN; } +EXPORT_SYMBOL_GPL(raw_seq_start); -static void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos) +void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos) { struct sock *sk; @@ -795,94 +929,105 @@ static void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos) ++*pos; return sk; } +EXPORT_SYMBOL_GPL(raw_seq_next); -static void raw_seq_stop(struct seq_file *seq, void *v) +void raw_seq_stop(struct seq_file *seq, void *v) { - read_unlock(&raw_v4_lock); + struct raw_iter_state *state = raw_seq_private(seq); + + read_unlock(&state->h->lock); } +EXPORT_SYMBOL_GPL(raw_seq_stop); -static __inline__ char *get_raw_sock(struct sock *sp, char *tmpbuf, int i) +static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) { struct inet_sock *inet = inet_sk(sp); - unsigned int dest = inet->daddr, - src = inet->rcv_saddr; + __be32 dest = inet->inet_daddr, + src = inet->inet_rcv_saddr; __u16 destp = 0, - srcp = inet->num; + srcp = inet->inet_num; - sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X" - " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p", - i, src, srcp, dest, destp, sp->sk_state, - atomic_read(&sp->sk_wmem_alloc), - atomic_read(&sp->sk_rmem_alloc), + seq_printf(seq, "%4d: %08X:%04X %08X:%04X" + " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", + i, src, srcp, dest, destp, sp->sk_state, + sk_wmem_alloc_get(sp), + sk_rmem_alloc_get(sp), 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp), - atomic_read(&sp->sk_refcnt), sp); - return tmpbuf; + atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops)); } static int raw_seq_show(struct seq_file *seq, void *v) { - char tmpbuf[129]; - if (v == SEQ_START_TOKEN) - seq_printf(seq, "%-127s\n", - " sl local_address rem_address st tx_queue " - "rx_queue tr tm->when retrnsmt uid timeout " - "inode"); - else { - struct raw_iter_state *state = raw_seq_private(seq); - - seq_printf(seq, "%-127s\n", - get_raw_sock(v, tmpbuf, state->bucket)); - } + seq_printf(seq, " sl local_address rem_address st tx_queue " + "rx_queue tr tm->when retrnsmt uid timeout " + "inode ref pointer drops\n"); + else + raw_sock_seq_show(seq, v, raw_seq_private(seq)->bucket); return 0; } -static struct seq_operations raw_seq_ops = { +static const struct seq_operations raw_seq_ops = { .start = raw_seq_start, .next = raw_seq_next, .stop = raw_seq_stop, .show = raw_seq_show, }; -static int raw_seq_open(struct inode *inode, struct file *file) +int raw_seq_open(struct inode *ino, struct file *file, + struct raw_hashinfo *h, const struct seq_operations *ops) { - struct seq_file *seq; - int rc = -ENOMEM; - struct raw_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL); + int err; + struct raw_iter_state *i; - if (!s) - goto out; - rc = seq_open(file, &raw_seq_ops); - if (rc) - goto out_kfree; + err = seq_open_net(ino, file, ops, sizeof(struct raw_iter_state)); + if (err < 0) + return err; - seq = file->private_data; - seq->private = s; - memset(s, 0, sizeof(*s)); -out: - return rc; -out_kfree: - kfree(s); - goto out; + i = raw_seq_private((struct seq_file *)file->private_data); + i->h = h; + return 0; } +EXPORT_SYMBOL_GPL(raw_seq_open); -static struct file_operations raw_seq_fops = { +static int raw_v4_seq_open(struct inode *inode, struct file *file) +{ + return raw_seq_open(inode, file, &raw_v4_hashinfo, &raw_seq_ops); +} + +static const struct file_operations raw_seq_fops = { .owner = THIS_MODULE, - .open = raw_seq_open, + .open = raw_v4_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release_private, + .release = seq_release_net, }; -int __init raw_proc_init(void) +static __net_init int raw_init_net(struct net *net) { - if (!proc_net_fops_create("raw", S_IRUGO, &raw_seq_fops)) + if (!proc_net_fops_create(net, "raw", S_IRUGO, &raw_seq_fops)) return -ENOMEM; + return 0; } +static __net_exit void raw_exit_net(struct net *net) +{ + proc_net_remove(net, "raw"); +} + +static __net_initdata struct pernet_operations raw_net_ops = { + .init = raw_init_net, + .exit = raw_exit_net, +}; + +int __init raw_proc_init(void) +{ + return register_pernet_subsys(&raw_net_ops); +} + void __init raw_proc_exit(void) { - proc_net_remove("raw"); + unregister_pernet_subsys(&raw_net_ops); } #endif /* CONFIG_PROC_FS */