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Diffstat (limited to 'net/dccp/probe.c')
-rw-r--r--net/dccp/probe.c75
1 files changed, 48 insertions, 27 deletions
diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index eaa59d82ab0..81368a7f537 100644
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -46,54 +46,75 @@ static struct {
struct kfifo *fifo;
spinlock_t lock;
wait_queue_head_t wait;
- ktime_t start;
+ struct timespec tstart;
} dccpw;
-static void jdccp_write_xmit(struct sock *sk)
+static void printl(const char *fmt, ...)
{
- const struct inet_sock *inet = inet_sk(sk);
- struct ccid3_hc_tx_sock *hctx = NULL;
- struct timespec tv;
- char buf[256];
- int len, ccid = ccid_get_current_tx_ccid(dccp_sk(sk));
+ va_list args;
+ int len;
+ struct timespec now;
+ char tbuf[256];
- if (ccid == DCCPC_CCID3)
- hctx = ccid3_hc_tx_sk(sk);
+ va_start(args, fmt);
+ getnstimeofday(&now);
- if (!port || ntohs(inet->dport) == port || ntohs(inet->sport) == port) {
+ now = timespec_sub(now, dccpw.tstart);
- tv = ktime_to_timespec(ktime_sub(ktime_get(), dccpw.start));
- len = sprintf(buf, "%lu.%09lu %d.%d.%d.%d:%u %d.%d.%d.%d:%u %d",
- (unsigned long)tv.tv_sec,
- (unsigned long)tv.tv_nsec,
- NIPQUAD(inet->saddr), ntohs(inet->sport),
- NIPQUAD(inet->daddr), ntohs(inet->dport), ccid);
+ len = sprintf(tbuf, "%lu.%06lu ",
+ (unsigned long) now.tv_sec,
+ (unsigned long) now.tv_nsec / NSEC_PER_USEC);
+ len += vscnprintf(tbuf+len, sizeof(tbuf)-len, fmt, args);
+ va_end(args);
+ kfifo_put(dccpw.fifo, tbuf, len);
+ wake_up(&dccpw.wait);
+}
+
+static int jdccp_sendmsg(struct kiocb *iocb, struct sock *sk,
+ struct msghdr *msg, size_t size)
+{
+ const struct dccp_minisock *dmsk = dccp_msk(sk);
+ const struct inet_sock *inet = inet_sk(sk);
+ const struct ccid3_hc_tx_sock *hctx;
+
+ if (dmsk->dccpms_tx_ccid == DCCPC_CCID3)
+ hctx = ccid3_hc_tx_sk(sk);
+ else
+ hctx = NULL;
+
+ if (port == 0 || ntohs(inet->dport) == port ||
+ ntohs(inet->sport) == port) {
if (hctx)
- len += sprintf(buf + len, " %d %d %d %u %u %u %d",
- hctx->s, hctx->rtt, hctx->p, hctx->x_calc,
- (unsigned)(hctx->x_recv >> 6),
- (unsigned)(hctx->x >> 6), hctx->t_ipi);
-
- len += sprintf(buf + len, "\n");
- kfifo_put(dccpw.fifo, buf, len);
- wake_up(&dccpw.wait);
+ printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d %d %d %d %u "
+ "%llu %llu %d\n",
+ NIPQUAD(inet->saddr), ntohs(inet->sport),
+ NIPQUAD(inet->daddr), ntohs(inet->dport), size,
+ hctx->ccid3hctx_s, hctx->ccid3hctx_rtt,
+ hctx->ccid3hctx_p, hctx->ccid3hctx_x_calc,
+ hctx->ccid3hctx_x_recv >> 6,
+ hctx->ccid3hctx_x >> 6, hctx->ccid3hctx_t_ipi);
+ else
+ printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d\n",
+ NIPQUAD(inet->saddr), ntohs(inet->sport),
+ NIPQUAD(inet->daddr), ntohs(inet->dport), size);
}
jprobe_return();
+ return 0;
}
static struct jprobe dccp_send_probe = {
.kp = {
- .symbol_name = "dccp_write_xmit",
+ .symbol_name = "dccp_sendmsg",
},
- .entry = jdccp_write_xmit,
+ .entry = jdccp_sendmsg,
};
static int dccpprobe_open(struct inode *inode, struct file *file)
{
kfifo_reset(dccpw.fifo);
- dccpw.start = ktime_get();
+ getnstimeofday(&dccpw.tstart);
return 0;
}