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| author | Jason Xing <kernelxing@tencent.com> | 2024-04-01 15:36:04 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-04-03 19:26:14 -0700 |
| commit | 9807080e2170a9e5a7428d0a0e8d082585b6451f (patch) | |
| tree | 5d7b97d9762ad58c5463e689a64cb67d4f5fef5f | |
| parent | 2f3c7195a702178629575b637f3f9a91eabdab73 (diff) | |
| download | linux-9807080e2170a9e5a7428d0a0e8d082585b6451f.tar.gz linux-9807080e2170a9e5a7428d0a0e8d082585b6451f.tar.bz2 linux-9807080e2170a9e5a7428d0a0e8d082585b6451f.zip | |
trace: adjust TP_STORE_ADDR_PORTS_SKB() parameters
Introducing entry_saddr and entry_daddr parameters in this macro
for later use can help us record the reverse 4-tuple by analyzing
the 4-tuple of the incoming skb when receiving.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240401073605.37335-2-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/trace/events/net_probe_common.h | 20 | ||||
| -rw-r--r-- | include/trace/events/tcp.h | 2 | ||||
| -rw-r--r-- | include/trace/events/udp.h | 2 |
3 files changed, 13 insertions, 11 deletions
diff --git a/include/trace/events/net_probe_common.h b/include/trace/events/net_probe_common.h index 5e33f91bdea3..976a58364bff 100644 --- a/include/trace/events/net_probe_common.h +++ b/include/trace/events/net_probe_common.h @@ -70,14 +70,14 @@ TP_STORE_V4MAPPED(__entry, saddr, daddr) #endif -#define TP_STORE_ADDR_PORTS_SKB_V4(__entry, skb, protoh) \ +#define TP_STORE_ADDR_PORTS_SKB_V4(skb, protoh, entry_saddr, entry_daddr) \ do { \ - struct sockaddr_in *v4 = (void *)__entry->saddr; \ + struct sockaddr_in *v4 = (void *)entry_saddr; \ \ v4->sin_family = AF_INET; \ v4->sin_port = protoh->source; \ v4->sin_addr.s_addr = ip_hdr(skb)->saddr; \ - v4 = (void *)__entry->daddr; \ + v4 = (void *)entry_daddr; \ v4->sin_family = AF_INET; \ v4->sin_port = protoh->dest; \ v4->sin_addr.s_addr = ip_hdr(skb)->daddr; \ @@ -85,28 +85,30 @@ #if IS_ENABLED(CONFIG_IPV6) -#define TP_STORE_ADDR_PORTS_SKB(__entry, skb, protoh) \ +#define TP_STORE_ADDR_PORTS_SKB(skb, protoh, entry_saddr, entry_daddr) \ do { \ const struct iphdr *iph = ip_hdr(skb); \ \ if (iph->version == 6) { \ - struct sockaddr_in6 *v6 = (void *)__entry->saddr; \ + struct sockaddr_in6 *v6 = (void *)entry_saddr; \ \ v6->sin6_family = AF_INET6; \ v6->sin6_port = protoh->source; \ v6->sin6_addr = ipv6_hdr(skb)->saddr; \ - v6 = (void *)__entry->daddr; \ + v6 = (void *)entry_daddr; \ v6->sin6_family = AF_INET6; \ v6->sin6_port = protoh->dest; \ v6->sin6_addr = ipv6_hdr(skb)->daddr; \ } else \ - TP_STORE_ADDR_PORTS_SKB_V4(__entry, skb, protoh); \ + TP_STORE_ADDR_PORTS_SKB_V4(skb, protoh, \ + entry_saddr, \ + entry_daddr); \ } while (0) #else -#define TP_STORE_ADDR_PORTS_SKB(__entry, skb, protoh) \ - TP_STORE_ADDR_PORTS_SKB_V4(__entry, skb, protoh) +#define TP_STORE_ADDR_PORTS_SKB(skb, protoh, entry_saddr, entry_daddr) \ + TP_STORE_ADDR_PORTS_SKB_V4(skb, protoh, entry_saddr, entry_daddr) #endif diff --git a/include/trace/events/tcp.h b/include/trace/events/tcp.h index 1db95175c1e5..cf14b6fcbeed 100644 --- a/include/trace/events/tcp.h +++ b/include/trace/events/tcp.h @@ -295,7 +295,7 @@ DECLARE_EVENT_CLASS(tcp_event_skb, memset(__entry->saddr, 0, sizeof(struct sockaddr_in6)); memset(__entry->daddr, 0, sizeof(struct sockaddr_in6)); - TP_STORE_ADDR_PORTS_SKB(__entry, skb, th); + TP_STORE_ADDR_PORTS_SKB(skb, th, __entry->saddr, __entry->daddr); ), TP_printk("skbaddr=%p src=%pISpc dest=%pISpc", diff --git a/include/trace/events/udp.h b/include/trace/events/udp.h index 62bebe2a6ece..6142be4068e2 100644 --- a/include/trace/events/udp.h +++ b/include/trace/events/udp.h @@ -38,7 +38,7 @@ TRACE_EVENT(udp_fail_queue_rcv_skb, memset(__entry->saddr, 0, sizeof(struct sockaddr_in6)); memset(__entry->daddr, 0, sizeof(struct sockaddr_in6)); - TP_STORE_ADDR_PORTS_SKB(__entry, skb, uh); + TP_STORE_ADDR_PORTS_SKB(skb, uh, __entry->saddr, __entry->daddr); ), TP_printk("rc=%d family=%s src=%pISpc dest=%pISpc", __entry->rc, |