diff options
Diffstat (limited to 'tcp.c')
| -rw-r--r-- | tcp.c | 19 |
1 files changed, 12 insertions, 7 deletions
@@ -1053,11 +1053,11 @@ void tcp_sock_set_bufsize(const struct ctx *c, int s) if (s == -1) return; - if (!c->low_rmem) - setsockopt(s, SOL_SOCKET, SO_RCVBUF, &v, sizeof(v)); + if (!c->low_rmem && setsockopt(s, SOL_SOCKET, SO_RCVBUF, &v, sizeof(v))) + trace("TCP: failed to set SO_RCVBUF to %i", v); - if (!c->low_wmem) - setsockopt(s, SOL_SOCKET, SO_SNDBUF, &v, sizeof(v)); + if (!c->low_wmem && setsockopt(s, SOL_SOCKET, SO_SNDBUF, &v, sizeof(v))) + trace("TCP: failed to set SO_SNDBUF to %i", v); } /** @@ -1547,7 +1547,8 @@ static void tcp_l2_buf_flush_part(const struct ctx *c, missing = end - sent; p = (char *)iov->iov_base + iov->iov_len - missing; - send(c->fd_tap, p, missing, MSG_NOSIGNAL); + if (send(c->fd_tap, p, missing, MSG_NOSIGNAL)) + debug("TCP: failed to flush %lu missing bytes to tap", missing); } /** @@ -2010,6 +2011,7 @@ static void tcp_clamp_window(const struct ctx *c, struct tcp_conn *conn, unsigned wnd) { uint32_t prev_scaled = conn->wnd_from_tap << conn->ws_from_tap; + int s = conn->sock; wnd <<= conn->ws_from_tap; wnd = MIN(MAX_WINDOW, wnd); @@ -2025,7 +2027,9 @@ static void tcp_clamp_window(const struct ctx *c, struct tcp_conn *conn, } conn->wnd_from_tap = MIN(wnd >> conn->ws_from_tap, USHRT_MAX); - setsockopt(conn->sock, SOL_TCP, TCP_WINDOW_CLAMP, &wnd, sizeof(wnd)); + if (setsockopt(s, SOL_TCP, TCP_WINDOW_CLAMP, &wnd, sizeof(wnd))) + trace("TCP: failed to set TCP_WINDOW_CLAMP on socket %i", s); + conn_flag(c, conn, WND_CLAMPED); } @@ -2209,7 +2213,8 @@ static void tcp_conn_from_tap(struct ctx *c, int af, const void *addr, conn->wnd_to_tap = WINDOW_DEFAULT; mss = tcp_conn_tap_mss(c, conn, opts, optlen); - setsockopt(s, SOL_TCP, TCP_MAXSEG, &mss, sizeof(mss)); + if (setsockopt(s, SOL_TCP, TCP_MAXSEG, &mss, sizeof(mss))) + trace("TCP: failed to set TCP_MAXSEG on socket %i", s); MSS_SET(conn, mss); tcp_get_tap_ws(conn, opts, optlen); |