#ifdef RATE_CNT
struct ratelimit {
struct bpf_spin_lock lock;
- union {
- int64_t sent_bytes;
- int64_t sent_packets;
- } rate;
+ int64_t sent_rate;
int64_t sent_time;
};
struct {
// map_check_btf as of Linux 5.10).
// This isn't exactly accurate, but at least its faster.
struct percpu_ratelimit {
- union {
- int64_t sent_bytes;
- int64_t sent_packets;
- } rate;
+ int64_t sent_rate;
int64_t sent_time;
};
#define V6_SRC_RATE_DEFINE(n, limit) \
struct { \
__uint(type, BPF_MAP_TYPE_LRU_PERCPU_HASH); \
+ __uint(map_flags, BPF_F_NO_COMMON_LRU); \
__uint(max_entries, limit); \
uint128_t *key; \
struct percpu_ratelimit *value; \
#define V4_SRC_RATE_DEFINE(n, limit) \
struct { \
__uint(type, BPF_MAP_TYPE_LRU_PERCPU_HASH); \
+ __uint(map_flags, BPF_F_NO_COMMON_LRU); \
__uint(max_entries, limit); \
__u32 *key; \
struct percpu_ratelimit *value; \
const void *l4hdr = NULL;
const struct tcphdr *tcp = NULL;
- uint8_t ports_valid = 0;
- uint16_t sport = 0, dport = 0; // Host Endian! Only valid with tcp || udp
+ int32_t sport = -1, dport = -1; // Host Endian! Only valid with tcp || udp
#ifdef NEED_V4_PARSE
if (eth_proto == BE16(ETH_P_IP)) {
tcp = (struct tcphdr*) l4hdr;
sport = BE16(tcp->source);
dport = BE16(tcp->dest);
- ports_valid = 1;
} else if (ip->protocol == IP_PROTO_UDP) {
CHECK_LEN(l4hdr, udphdr);
const struct udphdr *udp = (struct udphdr*) l4hdr;
sport = BE16(udp->source);
dport = BE16(udp->dest);
- ports_valid = 1;
} else if (ip->protocol == IP_PROTO_ICMP) {
CHECK_LEN(l4hdr, icmphdr);
icmp = (struct icmphdr*) l4hdr;
tcp = (struct tcphdr*) l4hdr;
sport = BE16(tcp->source);
dport = BE16(tcp->dest);
- ports_valid = 1;
} else if (v6nexthdr == IP_PROTO_UDP) {
CHECK_LEN(l4hdr, udphdr);
const struct udphdr *udp = (struct udphdr*) l4hdr;
sport = BE16(udp->source);
dport = BE16(udp->dest);
- ports_valid = 1;
} else if (v6nexthdr == IP6_PROTO_ICMPV6) {
CHECK_LEN(l4hdr, icmp6hdr);
icmpv6 = (struct icmp6hdr*) l4hdr;