slirp: VMState conversion; tcpcb
Convert the migration of the struct tcpcb to use a VMStateDescription, the rest of it will come later. Mostly mechanical, except for conversion of some 'char' to uint8_t to ensure portability. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This commit is contained in:
Dr. David Alan Gilbert
Samuel Thibault
parent
7d1724976f
commit
e3ec38ffd6
149
slirp/slirp.c
149
slirp/slirp.c
@ -1133,53 +1133,62 @@ void slirp_socket_recv(Slirp *slirp, struct in_addr guest_addr, int guest_port,
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tcp_output(sototcpcb(so));
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}
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static void slirp_tcp_save(QEMUFile *f, struct tcpcb *tp)
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static int slirp_tcp_post_load(void *opaque, int version)
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{
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int i;
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tcp_template((struct tcpcb *)opaque);
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qemu_put_sbe16(f, tp->t_state);
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for (i = 0; i < TCPT_NTIMERS; i++)
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qemu_put_sbe16(f, tp->t_timer[i]);
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qemu_put_sbe16(f, tp->t_rxtshift);
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qemu_put_sbe16(f, tp->t_rxtcur);
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qemu_put_sbe16(f, tp->t_dupacks);
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qemu_put_be16(f, tp->t_maxseg);
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qemu_put_sbyte(f, tp->t_force);
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qemu_put_be16(f, tp->t_flags);
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qemu_put_be32(f, tp->snd_una);
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qemu_put_be32(f, tp->snd_nxt);
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qemu_put_be32(f, tp->snd_up);
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qemu_put_be32(f, tp->snd_wl1);
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qemu_put_be32(f, tp->snd_wl2);
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qemu_put_be32(f, tp->iss);
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qemu_put_be32(f, tp->snd_wnd);
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qemu_put_be32(f, tp->rcv_wnd);
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qemu_put_be32(f, tp->rcv_nxt);
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qemu_put_be32(f, tp->rcv_up);
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qemu_put_be32(f, tp->irs);
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qemu_put_be32(f, tp->rcv_adv);
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qemu_put_be32(f, tp->snd_max);
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qemu_put_be32(f, tp->snd_cwnd);
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qemu_put_be32(f, tp->snd_ssthresh);
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qemu_put_sbe16(f, tp->t_idle);
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qemu_put_sbe16(f, tp->t_rtt);
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qemu_put_be32(f, tp->t_rtseq);
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qemu_put_sbe16(f, tp->t_srtt);
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qemu_put_sbe16(f, tp->t_rttvar);
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qemu_put_be16(f, tp->t_rttmin);
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qemu_put_be32(f, tp->max_sndwnd);
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qemu_put_byte(f, tp->t_oobflags);
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qemu_put_byte(f, tp->t_iobc);
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qemu_put_sbe16(f, tp->t_softerror);
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qemu_put_byte(f, tp->snd_scale);
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qemu_put_byte(f, tp->rcv_scale);
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qemu_put_byte(f, tp->request_r_scale);
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qemu_put_byte(f, tp->requested_s_scale);
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qemu_put_be32(f, tp->ts_recent);
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qemu_put_be32(f, tp->ts_recent_age);
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qemu_put_be32(f, tp->last_ack_sent);
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return 0;
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}
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static const VMStateDescription vmstate_slirp_tcp = {
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.name = "slirp-tcp",
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.version_id = 0,
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.post_load = slirp_tcp_post_load,
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.fields = (VMStateField[]) {
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VMSTATE_INT16(t_state, struct tcpcb),
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VMSTATE_INT16_ARRAY(t_timer, struct tcpcb, TCPT_NTIMERS),
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VMSTATE_INT16(t_rxtshift, struct tcpcb),
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VMSTATE_INT16(t_rxtcur, struct tcpcb),
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VMSTATE_INT16(t_dupacks, struct tcpcb),
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VMSTATE_UINT16(t_maxseg, struct tcpcb),
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VMSTATE_UINT8(t_force, struct tcpcb),
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VMSTATE_UINT16(t_flags, struct tcpcb),
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VMSTATE_UINT32(snd_una, struct tcpcb),
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VMSTATE_UINT32(snd_nxt, struct tcpcb),
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VMSTATE_UINT32(snd_up, struct tcpcb),
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VMSTATE_UINT32(snd_wl1, struct tcpcb),
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VMSTATE_UINT32(snd_wl2, struct tcpcb),
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VMSTATE_UINT32(iss, struct tcpcb),
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VMSTATE_UINT32(snd_wnd, struct tcpcb),
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VMSTATE_UINT32(rcv_wnd, struct tcpcb),
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VMSTATE_UINT32(rcv_nxt, struct tcpcb),
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VMSTATE_UINT32(rcv_up, struct tcpcb),
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VMSTATE_UINT32(irs, struct tcpcb),
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VMSTATE_UINT32(rcv_adv, struct tcpcb),
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VMSTATE_UINT32(snd_max, struct tcpcb),
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VMSTATE_UINT32(snd_cwnd, struct tcpcb),
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VMSTATE_UINT32(snd_ssthresh, struct tcpcb),
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VMSTATE_INT16(t_idle, struct tcpcb),
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VMSTATE_INT16(t_rtt, struct tcpcb),
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VMSTATE_UINT32(t_rtseq, struct tcpcb),
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VMSTATE_INT16(t_srtt, struct tcpcb),
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VMSTATE_INT16(t_rttvar, struct tcpcb),
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VMSTATE_UINT16(t_rttmin, struct tcpcb),
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VMSTATE_UINT32(max_sndwnd, struct tcpcb),
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VMSTATE_UINT8(t_oobflags, struct tcpcb),
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VMSTATE_UINT8(t_iobc, struct tcpcb),
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VMSTATE_INT16(t_softerror, struct tcpcb),
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VMSTATE_UINT8(snd_scale, struct tcpcb),
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VMSTATE_UINT8(rcv_scale, struct tcpcb),
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VMSTATE_UINT8(request_r_scale, struct tcpcb),
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VMSTATE_UINT8(requested_s_scale, struct tcpcb),
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VMSTATE_UINT32(ts_recent, struct tcpcb),
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VMSTATE_UINT32(ts_recent_age, struct tcpcb),
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VMSTATE_UINT32(last_ack_sent, struct tcpcb),
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VMSTATE_END_OF_LIST()
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}
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};
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static void slirp_sbuf_save(QEMUFile *f, struct sbuf *sbuf)
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{
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uint32_t off;
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@ -1222,7 +1231,7 @@ static void slirp_socket_save(QEMUFile *f, struct socket *so)
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qemu_put_be32(f, so->so_state);
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slirp_sbuf_save(f, &so->so_rcv);
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slirp_sbuf_save(f, &so->so_snd);
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slirp_tcp_save(f, so->so_tcpcb);
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vmstate_save_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
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}
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static void slirp_bootp_save(QEMUFile *f, Slirp *slirp)
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@ -1258,54 +1267,6 @@ static void slirp_state_save(QEMUFile *f, void *opaque)
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slirp_bootp_save(f, slirp);
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}
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static void slirp_tcp_load(QEMUFile *f, struct tcpcb *tp)
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{
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int i;
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tp->t_state = qemu_get_sbe16(f);
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for (i = 0; i < TCPT_NTIMERS; i++)
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tp->t_timer[i] = qemu_get_sbe16(f);
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tp->t_rxtshift = qemu_get_sbe16(f);
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tp->t_rxtcur = qemu_get_sbe16(f);
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tp->t_dupacks = qemu_get_sbe16(f);
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tp->t_maxseg = qemu_get_be16(f);
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tp->t_force = qemu_get_sbyte(f);
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tp->t_flags = qemu_get_be16(f);
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tp->snd_una = qemu_get_be32(f);
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tp->snd_nxt = qemu_get_be32(f);
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tp->snd_up = qemu_get_be32(f);
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tp->snd_wl1 = qemu_get_be32(f);
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tp->snd_wl2 = qemu_get_be32(f);
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tp->iss = qemu_get_be32(f);
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tp->snd_wnd = qemu_get_be32(f);
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tp->rcv_wnd = qemu_get_be32(f);
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tp->rcv_nxt = qemu_get_be32(f);
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tp->rcv_up = qemu_get_be32(f);
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tp->irs = qemu_get_be32(f);
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tp->rcv_adv = qemu_get_be32(f);
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tp->snd_max = qemu_get_be32(f);
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tp->snd_cwnd = qemu_get_be32(f);
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tp->snd_ssthresh = qemu_get_be32(f);
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tp->t_idle = qemu_get_sbe16(f);
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tp->t_rtt = qemu_get_sbe16(f);
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tp->t_rtseq = qemu_get_be32(f);
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tp->t_srtt = qemu_get_sbe16(f);
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tp->t_rttvar = qemu_get_sbe16(f);
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tp->t_rttmin = qemu_get_be16(f);
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tp->max_sndwnd = qemu_get_be32(f);
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tp->t_oobflags = qemu_get_byte(f);
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tp->t_iobc = qemu_get_byte(f);
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tp->t_softerror = qemu_get_sbe16(f);
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tp->snd_scale = qemu_get_byte(f);
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tp->rcv_scale = qemu_get_byte(f);
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tp->request_r_scale = qemu_get_byte(f);
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tp->requested_s_scale = qemu_get_byte(f);
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tp->ts_recent = qemu_get_be32(f);
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tp->ts_recent_age = qemu_get_be32(f);
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tp->last_ack_sent = qemu_get_be32(f);
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tcp_template(tp);
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}
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static int slirp_sbuf_load(QEMUFile *f, struct sbuf *sbuf)
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{
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uint32_t off, sb_cc, sb_datalen;
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@ -1371,9 +1332,7 @@ static int slirp_socket_load(QEMUFile *f, struct socket *so, int version_id)
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return -ENOMEM;
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if (slirp_sbuf_load(f, &so->so_snd) < 0)
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return -ENOMEM;
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slirp_tcp_load(f, so->so_tcpcb);
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return 0;
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return vmstate_load_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
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}
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static void slirp_bootp_load(QEMUFile *f, Slirp *slirp)
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@ -48,7 +48,7 @@ struct tcpcb {
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short t_rxtcur; /* current retransmit value */
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short t_dupacks; /* consecutive dup acks recd */
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u_short t_maxseg; /* maximum segment size */
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char t_force; /* 1 if forcing out a byte */
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uint8_t t_force; /* 1 if forcing out a byte */
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u_short t_flags;
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#define TF_ACKNOW 0x0001 /* ack peer immediately */
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#define TF_DELACK 0x0002 /* ack, but try to delay it */
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@ -109,8 +109,8 @@ struct tcpcb {
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uint32_t max_sndwnd; /* largest window peer has offered */
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/* out-of-band data */
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char t_oobflags; /* have some */
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char t_iobc; /* input character */
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uint8_t t_oobflags; /* have some */
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uint8_t t_iobc; /* input character */
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#define TCPOOB_HAVEDATA 0x01
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#define TCPOOB_HADDATA 0x02
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short t_softerror; /* possible error not yet reported */
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