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Commit 743b2a66 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

sched: cls_flow: use skb_to_full_sk() helper 



SYNACK packets might be attached to request sockets.

Fixes: ca6fb065 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fdd723e2

net/sched/cls_flow.c

+11 −4
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/if_vlan.h>

#include <linux/slab.h>

#include <linux/module.h>

#include <net/inet_sock.h>



#include <net/pkt_cls.h>

#include <net/ip.h>
@@ -197,8 +198,11 @@ static u32 flow_get_rtclassid(const struct sk_buff *skb) 


static u32 flow_get_skuid(const struct sk_buff *skb)

{

	if (skb->sk && skb->sk->sk_socket && skb->sk->sk_socket->file) {

		kuid_t skuid = skb->sk->sk_socket->file->f_cred->fsuid;

	struct sock *sk = skb_to_full_sk(skb);



	if (sk && sk->sk_socket && sk->sk_socket->file) {

		kuid_t skuid = sk->sk_socket->file->f_cred->fsuid;



		return from_kuid(&init_user_ns, skuid);

	}

	return 0;
@@ -206,8 +210,11 @@ static u32 flow_get_skuid(const struct sk_buff *skb) 


static u32 flow_get_skgid(const struct sk_buff *skb)

{

	if (skb->sk && skb->sk->sk_socket && skb->sk->sk_socket->file) {

		kgid_t skgid = skb->sk->sk_socket->file->f_cred->fsgid;

	struct sock *sk = skb_to_full_sk(skb);



	if (sk && sk->sk_socket && sk->sk_socket->file) {

		kgid_t skgid = sk->sk_socket->file->f_cred->fsgid;



		return from_kgid(&init_user_ns, skgid);

	}

	return 0;