diff options
Diffstat (limited to 'samples/bpf/sockex2_kern.c')
| -rw-r--r-- | samples/bpf/sockex2_kern.c | 26 | 
1 files changed, 16 insertions, 10 deletions
| diff --git a/samples/bpf/sockex2_kern.c b/samples/bpf/sockex2_kern.c index 6f0135f0f217..ba0e177ff561 100644 --- a/samples/bpf/sockex2_kern.c +++ b/samples/bpf/sockex2_kern.c @@ -42,13 +42,13 @@ static inline int proto_ports_offset(__u64 proto)  	}  } -static inline int ip_is_fragment(struct sk_buff *ctx, __u64 nhoff) +static inline int ip_is_fragment(struct __sk_buff *ctx, __u64 nhoff)  {  	return load_half(ctx, nhoff + offsetof(struct iphdr, frag_off))  		& (IP_MF | IP_OFFSET);  } -static inline __u32 ipv6_addr_hash(struct sk_buff *ctx, __u64 off) +static inline __u32 ipv6_addr_hash(struct __sk_buff *ctx, __u64 off)  {  	__u64 w0 = load_word(ctx, off);  	__u64 w1 = load_word(ctx, off + 4); @@ -58,7 +58,7 @@ static inline __u32 ipv6_addr_hash(struct sk_buff *ctx, __u64 off)  	return (__u32)(w0 ^ w1 ^ w2 ^ w3);  } -static inline __u64 parse_ip(struct sk_buff *skb, __u64 nhoff, __u64 *ip_proto, +static inline __u64 parse_ip(struct __sk_buff *skb, __u64 nhoff, __u64 *ip_proto,  			     struct flow_keys *flow)  {  	__u64 verlen; @@ -82,7 +82,7 @@ static inline __u64 parse_ip(struct sk_buff *skb, __u64 nhoff, __u64 *ip_proto,  	return nhoff;  } -static inline __u64 parse_ipv6(struct sk_buff *skb, __u64 nhoff, __u64 *ip_proto, +static inline __u64 parse_ipv6(struct __sk_buff *skb, __u64 nhoff, __u64 *ip_proto,  			       struct flow_keys *flow)  {  	*ip_proto = load_byte(skb, @@ -96,7 +96,7 @@ static inline __u64 parse_ipv6(struct sk_buff *skb, __u64 nhoff, __u64 *ip_proto  	return nhoff;  } -static inline bool flow_dissector(struct sk_buff *skb, struct flow_keys *flow) +static inline bool flow_dissector(struct __sk_buff *skb, struct flow_keys *flow)  {  	__u64 nhoff = ETH_HLEN;  	__u64 ip_proto; @@ -183,18 +183,23 @@ static inline bool flow_dissector(struct sk_buff *skb, struct flow_keys *flow)  	return true;  } +struct pair { +	long packets; +	long bytes; +}; +  struct bpf_map_def SEC("maps") hash_map = {  	.type = BPF_MAP_TYPE_HASH,  	.key_size = sizeof(__be32), -	.value_size = sizeof(long), +	.value_size = sizeof(struct pair),  	.max_entries = 1024,  };  SEC("socket2") -int bpf_prog2(struct sk_buff *skb) +int bpf_prog2(struct __sk_buff *skb)  {  	struct flow_keys flow; -	long *value; +	struct pair *value;  	u32 key;  	if (!flow_dissector(skb, &flow)) @@ -203,9 +208,10 @@ int bpf_prog2(struct sk_buff *skb)  	key = flow.dst;  	value = bpf_map_lookup_elem(&hash_map, &key);  	if (value) { -		__sync_fetch_and_add(value, 1); +		__sync_fetch_and_add(&value->packets, 1); +		__sync_fetch_and_add(&value->bytes, skb->len);  	} else { -		long val = 1; +		struct pair val = {1, skb->len};  		bpf_map_update_elem(&hash_map, &key, &val, BPF_ANY);  	} |