diff options
| -rw-r--r-- | include/linux/filter.h | 31 | ||||
| -rw-r--r-- | net/core/filter.c | 5 |
2 files changed, 17 insertions, 19 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h index ddfa037..bfc5d31 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -37,21 +37,6 @@ struct sock_fprog /* Required for SO_ATTACH_FILTER. */ struct sock_filter __user *filter; }; -#ifdef __KERNEL__ -struct sk_filter -{ - atomic_t refcnt; - unsigned int len; /* Number of filter blocks */ - struct rcu_head rcu; - struct sock_filter insns[0]; -}; - -static inline unsigned int sk_filter_len(struct sk_filter *fp) -{ - return fp->len*sizeof(struct sock_filter) + sizeof(*fp); -} -#endif - /* * Instruction classes */ @@ -141,10 +126,24 @@ static inline unsigned int sk_filter_len(struct sk_filter *fp) #define SKF_LL_OFF (-0x200000) #ifdef __KERNEL__ +struct sk_filter +{ + atomic_t refcnt; + unsigned int len; /* Number of filter blocks */ + struct rcu_head rcu; + struct sock_filter insns[0]; +}; + +static inline unsigned int sk_filter_len(const struct sk_filter *fp) +{ + return fp->len * sizeof(struct sock_filter) + sizeof(*fp); +} + struct sk_buff; struct sock; -extern unsigned int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int flen); +extern unsigned int sk_run_filter(struct sk_buff *skb, + struct sock_filter *filter, int flen); extern int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk); extern int sk_detach_filter(struct sock *sk); extern int sk_chk_filter(struct sock_filter *filter, int flen); diff --git a/net/core/filter.c b/net/core/filter.c index e0a0694..85a5feb 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -275,6 +275,7 @@ load_b: return 0; } +EXPORT_SYMBOL(sk_run_filter); /** * sk_chk_filter - verify socket filter code @@ -385,6 +386,7 @@ int sk_chk_filter(struct sock_filter *filter, int flen) return (BPF_CLASS(filter[flen - 1].code) == BPF_RET) ? 0 : -EINVAL; } +EXPORT_SYMBOL(sk_chk_filter); /** * sk_filter_rcu_release: Release a socket filter by rcu_head @@ -467,6 +469,3 @@ int sk_detach_filter(struct sock *sk) rcu_read_unlock_bh(); return ret; } - -EXPORT_SYMBOL(sk_chk_filter); -EXPORT_SYMBOL(sk_run_filter); |
