f5455a1d9d
In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memset(), avoid intentionally writing across neighboring fields. Use memset_startat() so memset() doesn't get confused about writing beyond the destination member that is intended to be the starting point of zeroing through the end of the struct. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM dccp
|
|
|
|
#if !defined(_TRACE_DCCP_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_DCCP_H
|
|
|
|
#include <net/sock.h>
|
|
#include "dccp.h"
|
|
#include "ccids/ccid3.h"
|
|
#include <linux/tracepoint.h>
|
|
#include <trace/events/net_probe_common.h>
|
|
|
|
TRACE_EVENT(dccp_probe,
|
|
|
|
TP_PROTO(struct sock *sk, size_t size),
|
|
|
|
TP_ARGS(sk, size),
|
|
|
|
TP_STRUCT__entry(
|
|
/* sockaddr_in6 is always bigger than sockaddr_in */
|
|
__array(__u8, saddr, sizeof(struct sockaddr_in6))
|
|
__array(__u8, daddr, sizeof(struct sockaddr_in6))
|
|
__field(__u16, sport)
|
|
__field(__u16, dport)
|
|
__field(__u16, size)
|
|
__field(__u16, tx_s)
|
|
__field(__u32, tx_rtt)
|
|
__field(__u32, tx_p)
|
|
__field(__u32, tx_x_calc)
|
|
__field(__u64, tx_x_recv)
|
|
__field(__u64, tx_x)
|
|
__field(__u32, tx_t_ipi)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
const struct inet_sock *inet = inet_sk(sk);
|
|
struct ccid3_hc_tx_sock *hc = NULL;
|
|
|
|
if (ccid_get_current_tx_ccid(dccp_sk(sk)) == DCCPC_CCID3)
|
|
hc = ccid3_hc_tx_sk(sk);
|
|
|
|
memset(__entry->saddr, 0, sizeof(struct sockaddr_in6));
|
|
memset(__entry->daddr, 0, sizeof(struct sockaddr_in6));
|
|
|
|
TP_STORE_ADDR_PORTS(__entry, inet, sk);
|
|
|
|
/* For filtering use */
|
|
__entry->sport = ntohs(inet->inet_sport);
|
|
__entry->dport = ntohs(inet->inet_dport);
|
|
|
|
__entry->size = size;
|
|
if (hc) {
|
|
__entry->tx_s = hc->tx_s;
|
|
__entry->tx_rtt = hc->tx_rtt;
|
|
__entry->tx_p = hc->tx_p;
|
|
__entry->tx_x_calc = hc->tx_x_calc;
|
|
__entry->tx_x_recv = hc->tx_x_recv >> 6;
|
|
__entry->tx_x = hc->tx_x >> 6;
|
|
__entry->tx_t_ipi = hc->tx_t_ipi;
|
|
} else {
|
|
__entry->tx_s = 0;
|
|
memset_startat(__entry, 0, tx_rtt);
|
|
}
|
|
),
|
|
|
|
TP_printk("src=%pISpc dest=%pISpc size=%d tx_s=%d tx_rtt=%d "
|
|
"tx_p=%d tx_x_calc=%u tx_x_recv=%llu tx_x=%llu tx_t_ipi=%d",
|
|
__entry->saddr, __entry->daddr, __entry->size,
|
|
__entry->tx_s, __entry->tx_rtt, __entry->tx_p,
|
|
__entry->tx_x_calc, __entry->tx_x_recv, __entry->tx_x,
|
|
__entry->tx_t_ipi)
|
|
);
|
|
|
|
#endif /* _TRACE_TCP_H */
|
|
|
|
/* This part must be outside protection */
|
|
#undef TRACE_INCLUDE_PATH
|
|
#define TRACE_INCLUDE_PATH .
|
|
#undef TRACE_INCLUDE_FILE
|
|
#define TRACE_INCLUDE_FILE trace
|
|
#include <trace/define_trace.h>
|