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net/sock: add an explicit sk argument for ip_cmsg_recv_offset() 

So that we can use it even after orphaining the skbuff.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2016-11-04 11:28:58 +01:00 committed by David S. Miller
parent cd2c0f4540
commit ad959036a7
4 changed files with 8 additions and 7 deletions
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5
include/net/ip.h
View File

@ -579,7 +579,8 @@ int ip_options_rcv_srr(struct sk_buff *skb);
*/
void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb);
void ip_cmsg_recv_offset(struct msghdr *msg, struct sk_buff *skb, int tlen, int offset);
void ip_cmsg_recv_offset(struct msghdr *msg, struct sock *sk,
struct sk_buff *skb, int tlen, int offset);
int ip_cmsg_send(struct sock *sk, struct msghdr *msg,
struct ipcm_cookie *ipc, bool allow_ipv6);
int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
@ -601,7 +602,7 @@ void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport,
static inline void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb)
{
ip_cmsg_recv_offset(msg, skb, 0, 0);
ip_cmsg_recv_offset(msg, skb->sk, skb, 0, 0);
}
bool icmp_global_allow(void);

6
net/ipv4/ip_sockglue.c
View File

@ -164,10 +164,10 @@ static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb)
put_cmsg(msg, SOL_IP, IP_ORIGDSTADDR, sizeof(sin), &sin);
}
void ip_cmsg_recv_offset(struct msghdr *msg, struct sk_buff *skb,
int tlen, int offset)
void ip_cmsg_recv_offset(struct msghdr *msg, struct sock *sk,
struct sk_buff *skb, int tlen, int offset)
{
struct inet_sock *inet = inet_sk(skb->sk);
struct inet_sock *inet = inet_sk(sk);
unsigned int flags = inet->cmsg_flags;
/* Ordered by supposed usage frequency */

2
net/ipv4/udp.c
View File

@ -1421,7 +1421,7 @@ int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
*addr_len = sizeof(*sin);
}
if (inet->cmsg_flags)
ip_cmsg_recv_offset(msg, skb, sizeof(struct udphdr), off);
ip_cmsg_recv_offset(msg, sk, skb, sizeof(struct udphdr), off);
err = copied;
if (flags & MSG_TRUNC)

2
net/ipv6/udp.c
View File

@ -425,7 +425,7 @@ int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (is_udp4) {
if (inet->cmsg_flags)
ip_cmsg_recv_offset(msg, skb,
ip_cmsg_recv_offset(msg, sk, skb,
sizeof(struct udphdr), off);
} else {
if (np->rxopt.all)