diff options
Diffstat (limited to 'net/ipv4/raw.c')
| -rw-r--r-- | net/ipv4/raw.c | 59 |
1 files changed, 29 insertions, 30 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index a8659e0c4a6..6fee91f656a 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -314,9 +314,10 @@ int raw_rcv(struct sock *sk, struct sk_buff *skb) return 0; } -static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, - struct rtable **rtp, - unsigned int flags) +static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4, + void *from, size_t length, + struct rtable **rtp, + unsigned int flags) { struct inet_sock *inet = inet_sk(sk); struct net *net = sock_net(sk); @@ -327,7 +328,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, struct rtable *rt = *rtp; if (length > rt->dst.dev->mtu) { - ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->inet_dport, + ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport, rt->dst.dev->mtu); return -EMSGSIZE; } @@ -372,7 +373,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length, if (iphlen >= sizeof(*iph)) { if (!iph->saddr) - iph->saddr = rt->rt_src; + iph->saddr = fl4->saddr; iph->check = 0; iph->tot_len = htons(length); if (!iph->id) @@ -455,6 +456,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, struct inet_sock *inet = inet_sk(sk); struct ipcm_cookie ipc; struct rtable *rt = NULL; + struct flowi4 fl4; int free = 0; __be32 daddr; __be32 saddr; @@ -558,27 +560,23 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, saddr = inet->mc_addr; } - { - struct flowi4 fl4; + flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos, + RT_SCOPE_UNIVERSE, + inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol, + FLOWI_FLAG_CAN_SLEEP, daddr, saddr, 0, 0); - flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos, - RT_SCOPE_UNIVERSE, - inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol, - FLOWI_FLAG_CAN_SLEEP, daddr, saddr, 0, 0); - - if (!inet->hdrincl) { - err = raw_probe_proto_opt(&fl4, msg); - if (err) - goto done; - } - - security_sk_classify_flow(sk, flowi4_to_flowi(&fl4)); - rt = ip_route_output_flow(sock_net(sk), &fl4, sk); - if (IS_ERR(rt)) { - err = PTR_ERR(rt); - rt = NULL; + if (!inet->hdrincl) { + err = raw_probe_proto_opt(&fl4, msg); + if (err) goto done; - } + } + + security_sk_classify_flow(sk, flowi4_to_flowi(&fl4)); + rt = ip_route_output_flow(sock_net(sk), &fl4, sk); + if (IS_ERR(rt)) { + err = PTR_ERR(rt); + rt = NULL; + goto done; } err = -EACCES; @@ -590,19 +588,20 @@ 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, - &rt, msg->msg_flags); + err = raw_send_hdrinc(sk, &fl4, msg->msg_iov, len, + &rt, msg->msg_flags); else { if (!ipc.addr) - ipc.addr = rt->rt_dst; + ipc.addr = fl4.daddr; lock_sock(sk); - err = ip_append_data(sk, ip_generic_getfrag, msg->msg_iov, len, 0, - &ipc, &rt, msg->msg_flags); + err = ip_append_data(sk, ip_generic_getfrag, + msg->msg_iov, len, 0, + &ipc, &rt, msg->msg_flags); if (err) ip_flush_pending_frames(sk); else if (!(msg->msg_flags & MSG_MORE)) { - err = ip_push_pending_frames(sk); + err = ip_push_pending_frames(sk, &fl4); if (err == -ENOBUFS && !inet->recverr) err = 0; } |