diff options
Diffstat (limited to 'net/ipv4/ping.c')
-rw-r--r-- | net/ipv4/ping.c | 100 |
1 files changed, 51 insertions, 49 deletions
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index d7d9882d4ca..242e7f4ed6f 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -202,15 +202,14 @@ static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident) #if IS_ENABLED(CONFIG_IPV6) } else if (skb->protocol == htons(ETH_P_IPV6) && sk->sk_family == AF_INET6) { - struct ipv6_pinfo *np = inet6_sk(sk); pr_debug("found: %p: num=%d, daddr=%pI6c, dif=%d\n", sk, (int) isk->inet_num, - &inet6_sk(sk)->rcv_saddr, + &sk->sk_v6_rcv_saddr, sk->sk_bound_dev_if); - if (!ipv6_addr_any(&np->rcv_saddr) && - !ipv6_addr_equal(&np->rcv_saddr, + if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr) && + !ipv6_addr_equal(&sk->sk_v6_rcv_saddr, &ipv6_hdr(skb)->daddr)) continue; #endif @@ -237,11 +236,11 @@ static void inet_get_ping_group_range_net(struct net *net, kgid_t *low, unsigned int seq; do { - seq = read_seqbegin(&sysctl_local_ports.lock); + seq = read_seqbegin(&net->ipv4.sysctl_local_ports.lock); *low = data[0]; *high = data[1]; - } while (read_seqretry(&sysctl_local_ports.lock, seq)); + } while (read_seqretry(&net->ipv4.sysctl_local_ports.lock, seq)); } @@ -362,7 +361,7 @@ static void ping_set_saddr(struct sock *sk, struct sockaddr *saddr) } else if (saddr->sa_family == AF_INET6) { struct sockaddr_in6 *addr = (struct sockaddr_in6 *) saddr; struct ipv6_pinfo *np = inet6_sk(sk); - np->rcv_saddr = np->saddr = addr->sin6_addr; + sk->sk_v6_rcv_saddr = np->saddr = addr->sin6_addr; #endif } } @@ -376,7 +375,7 @@ static void ping_clear_saddr(struct sock *sk, int dif) #if IS_ENABLED(CONFIG_IPV6) } else if (sk->sk_family == AF_INET6) { struct ipv6_pinfo *np = inet6_sk(sk); - memset(&np->rcv_saddr, 0, sizeof(np->rcv_saddr)); + memset(&sk->sk_v6_rcv_saddr, 0, sizeof(sk->sk_v6_rcv_saddr)); memset(&np->saddr, 0, sizeof(np->saddr)); #endif } @@ -416,10 +415,12 @@ int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) (int)sk->sk_bound_dev_if); err = 0; - if ((sk->sk_family == AF_INET && isk->inet_rcv_saddr) || - (sk->sk_family == AF_INET6 && - !ipv6_addr_any(&inet6_sk(sk)->rcv_saddr))) + if (sk->sk_family == AF_INET && isk->inet_rcv_saddr) sk->sk_userlocks |= SOCK_BINDADDR_LOCK; +#if IS_ENABLED(CONFIG_IPV6) + if (sk->sk_family == AF_INET6 && !ipv6_addr_any(&sk->sk_v6_rcv_saddr)) + sk->sk_userlocks |= SOCK_BINDADDR_LOCK; +#endif if (snum) sk->sk_userlocks |= SOCK_BINDPORT_LOCK; @@ -429,7 +430,7 @@ int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) #if IS_ENABLED(CONFIG_IPV6) if (sk->sk_family == AF_INET6) - memset(&inet6_sk(sk)->daddr, 0, sizeof(inet6_sk(sk)->daddr)); + memset(&sk->sk_v6_daddr, 0, sizeof(sk->sk_v6_daddr)); #endif sk_dst_reset(sk); @@ -713,6 +714,8 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, ipc.opt = NULL; ipc.oif = sk->sk_bound_dev_if; ipc.tx_flags = 0; + ipc.ttl = 0; + ipc.tos = -1; sock_tx_timestamp(sk, &ipc.tx_flags); @@ -744,7 +747,7 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, return -EINVAL; faddr = ipc.opt->opt.faddr; } - tos = RT_TOS(inet->tos); + tos = get_rttos(&ipc, inet); if (sock_flag(sk, SOCK_LOCALROUTE) || (msg->msg_flags & MSG_DONTROUTE) || (ipc.opt && ipc.opt->opt.is_strictroute)) { @@ -769,7 +772,7 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, err = PTR_ERR(rt); rt = NULL; if (err == -ENETUNREACH) - IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES); + IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES); goto out; } @@ -827,8 +830,6 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, { struct inet_sock *isk = inet_sk(sk); int family = sk->sk_family; - struct sockaddr_in *sin; - struct sockaddr_in6 *sin6; struct sk_buff *skb; int copied, err; @@ -838,19 +839,13 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (flags & MSG_OOB) goto out; - if (addr_len) { - if (family == AF_INET) - *addr_len = sizeof(*sin); - else if (family == AF_INET6 && addr_len) - *addr_len = sizeof(*sin6); - } - if (flags & MSG_ERRQUEUE) { if (family == AF_INET) { - return ip_recv_error(sk, msg, len); + return ip_recv_error(sk, msg, len, addr_len); #if IS_ENABLED(CONFIG_IPV6) } else if (family == AF_INET6) { - return pingv6_ops.ipv6_recv_error(sk, msg, len); + return pingv6_ops.ipv6_recv_error(sk, msg, len, + addr_len); #endif } } @@ -874,11 +869,15 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, /* Copy the address and add cmsg data. */ if (family == AF_INET) { - sin = (struct sockaddr_in *) msg->msg_name; - sin->sin_family = AF_INET; - sin->sin_port = 0 /* skb->h.uh->source */; - sin->sin_addr.s_addr = ip_hdr(skb)->saddr; - memset(sin->sin_zero, 0, sizeof(sin->sin_zero)); + struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name; + + if (sin) { + sin->sin_family = AF_INET; + sin->sin_port = 0 /* skb->h.uh->source */; + sin->sin_addr.s_addr = ip_hdr(skb)->saddr; + memset(sin->sin_zero, 0, sizeof(sin->sin_zero)); + *addr_len = sizeof(*sin); + } if (isk->cmsg_flags) ip_cmsg_recv(msg, skb); @@ -887,17 +886,21 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, } else if (family == AF_INET6) { struct ipv6_pinfo *np = inet6_sk(sk); struct ipv6hdr *ip6 = ipv6_hdr(skb); - sin6 = (struct sockaddr_in6 *) msg->msg_name; - sin6->sin6_family = AF_INET6; - sin6->sin6_port = 0; - sin6->sin6_addr = ip6->saddr; - - sin6->sin6_flowinfo = 0; - if (np->sndflow) - sin6->sin6_flowinfo = ip6_flowinfo(ip6); - - sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr, - IP6CB(skb)->iif); + struct sockaddr_in6 *sin6 = + (struct sockaddr_in6 *)msg->msg_name; + + if (sin6) { + sin6->sin6_family = AF_INET6; + sin6->sin6_port = 0; + sin6->sin6_addr = ip6->saddr; + sin6->sin6_flowinfo = 0; + if (np->sndflow) + sin6->sin6_flowinfo = ip6_flowinfo(ip6); + sin6->sin6_scope_id = + ipv6_iface_scope_id(&sin6->sin6_addr, + IP6CB(skb)->iif); + *addr_len = sizeof(*sin6); + } if (inet6_sk(sk)->rxopt.all) pingv6_ops.ip6_datagram_recv_ctl(sk, msg, skb); @@ -1073,7 +1076,7 @@ void ping_seq_stop(struct seq_file *seq, void *v) EXPORT_SYMBOL_GPL(ping_seq_stop); static void ping_v4_format_sock(struct sock *sp, struct seq_file *f, - int bucket, int *len) + int bucket) { struct inet_sock *inet = inet_sk(sp); __be32 dest = inet->inet_daddr; @@ -1082,7 +1085,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f, __u16 srcp = ntohs(inet->inet_sport); seq_printf(f, "%5d: %08X:%04X %08X:%04X" - " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d%n", + " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d", bucket, src, srcp, dest, destp, sp->sk_state, sk_wmem_alloc_get(sp), sk_rmem_alloc_get(sp), @@ -1090,23 +1093,22 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f, from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)), 0, sock_i_ino(sp), atomic_read(&sp->sk_refcnt), sp, - atomic_read(&sp->sk_drops), len); + atomic_read(&sp->sk_drops)); } static int ping_v4_seq_show(struct seq_file *seq, void *v) { + seq_setwidth(seq, 127); if (v == SEQ_START_TOKEN) - seq_printf(seq, "%-127s\n", - " sl local_address rem_address st tx_queue " + seq_puts(seq, " sl local_address rem_address st tx_queue " "rx_queue tr tm->when retrnsmt uid timeout " "inode ref pointer drops"); else { struct ping_iter_state *state = seq->private; - int len; - ping_v4_format_sock(v, seq, state->bucket, &len); - seq_printf(seq, "%*s\n", 127 - len, ""); + ping_v4_format_sock(v, seq, state->bucket); } + seq_pad(seq, '\n'); return 0; } |