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Diffstat (limited to 'tcp.c')
-rw-r--r--tcp.c85
1 files changed, 4 insertions, 81 deletions
diff --git a/tcp.c b/tcp.c
index dc74275..e0f693d 100644
--- a/tcp.c
+++ b/tcp.c
@@ -1395,92 +1395,15 @@ static void tcp_rst_do(struct ctx *c, struct tcp_tap_conn *conn);
} while (0)
/**
- * tcp_l2_buf_flush_pasta() - Send frames on the pasta tap interface
- * @c: Execution context
- * @iov: Pointer to array of buffers, one per frame
- * @n: Number of buffers/frames to flush
- */
-static void tcp_l2_buf_flush_pasta(struct ctx *c,
- const struct iovec *iov, size_t n)
-{
- size_t i;
-
- for (i = 0; i < n; i++) {
- if (write(c->fd_tap, (char *)iov->iov_base + 4,
- iov->iov_len - 4) < 0) {
- debug("tap write: %s", strerror(errno));
- if (errno != EAGAIN && errno != EWOULDBLOCK)
- tap_handler(c, c->fd_tap, EPOLLERR, NULL);
- i--;
- }
- }
-}
-
-/**
- * tcp_l2_buf_flush_passt() - Send a message on the passt tap interface
- * @c: Execution context
- * @iov: Pointer to array of buffers, one per frame
- * @n: Number of buffers/frames to flush
- */
-static void tcp_l2_buf_flush_passt(const struct ctx *c,
- const struct iovec *iov, size_t n)
-{
- struct msghdr mh = {
- .msg_iov = (void *)iov,
- .msg_iovlen = n,
- };
- size_t end = 0, missing;
- unsigned int i;
- ssize_t sent;
- char *p;
-
- sent = sendmsg(c->fd_tap, &mh, MSG_NOSIGNAL | MSG_DONTWAIT);
- if (sent < 0)
- return;
-
- /* Ensure a complete last message on partial sendmsg() */
- for (i = 0; i < n; i++, iov++) {
- end += iov->iov_len;
- if (end >= (size_t)sent)
- break;
- }
-
- missing = end - sent;
- if (!missing)
- return;
-
- p = (char *)iov->iov_base + iov->iov_len - missing;
- if (send(c->fd_tap, p, missing, MSG_NOSIGNAL))
- debug("TCP: failed to flush %lu missing bytes to tap", missing);
-}
-
-/**
- * tcp_l2_flags_buf_flush() - Send out buffers for segments with or without data
- * @c: Execution context
- */
-static void tcp_l2_buf_flush(struct ctx *c, const struct iovec *iov, size_t n)
-{
- if (!n)
- return;
-
- if (c->mode == MODE_PASST)
- tcp_l2_buf_flush_passt(c, iov, n);
- else
- tcp_l2_buf_flush_pasta(c, iov, n);
-
- pcap_multiple(iov, n, sizeof(uint32_t));
-}
-
-/**
* tcp_l2_flags_buf_flush() - Send out buffers for segments with no data (flags)
* @c: Execution context
*/
static void tcp_l2_flags_buf_flush(struct ctx *c)
{
- tcp_l2_buf_flush(c, tcp6_l2_flags_iov, tcp6_l2_flags_buf_used);
+ tap_send_frames(c, tcp6_l2_flags_iov, tcp6_l2_flags_buf_used);
tcp6_l2_flags_buf_used = 0;
- tcp_l2_buf_flush(c, tcp4_l2_flags_iov, tcp4_l2_flags_buf_used);
+ tap_send_frames(c, tcp4_l2_flags_iov, tcp4_l2_flags_buf_used);
tcp4_l2_flags_buf_used = 0;
}
@@ -1490,10 +1413,10 @@ static void tcp_l2_flags_buf_flush(struct ctx *c)
*/
static void tcp_l2_data_buf_flush(struct ctx *c)
{
- tcp_l2_buf_flush(c, tcp6_l2_iov, tcp6_l2_buf_used);
+ tap_send_frames(c, tcp6_l2_iov, tcp6_l2_buf_used);
tcp6_l2_buf_used = 0;
- tcp_l2_buf_flush(c, tcp4_l2_iov, tcp4_l2_buf_used);
+ tap_send_frames(c, tcp4_l2_iov, tcp4_l2_buf_used);
tcp4_l2_buf_used = 0;
}