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soccr/tcp: Prepare connection info for restore

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Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
This commit is contained in:
Pavel Emelyanov 2016-08-05 15:35:17 +03:00
parent c08eb3dde1
commit efdcf3776a
1 changed files with 42 additions and 0 deletions
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42
criu/sk-tcp.c
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@ -496,6 +496,7 @@ static int restore_tcp_conn_state(int sk, struct libsoccr_sk *socr, struct inet_
int aux;
struct cr_img *img;
TcpStreamEntry *tse;
struct libsoccr_sk_data data = {};
pr_info("Restoring TCP connection id %x ino %x\n", ii->ie->id, ii->ie->ino);
@ -506,6 +507,47 @@ static int restore_tcp_conn_state(int sk, struct libsoccr_sk *socr, struct inet_
if (pb_read_one(img, &tse, PB_TCP_STREAM) < 0)
goto err_c;
if (!tse->has_unsq_len) {
pr_err("No unsq len in the image\n");
goto err_c;
}
data.inq_len = tse->inq_len;
data.inq_seq = tse->inq_seq;
data.outq_len = tse->outq_len;
data.outq_seq = tse->outq_seq;
data.unsq_len = tse->unsq_len;
data.mss_clamp = tse->mss_clamp;
data.opt_mask = tse->opt_mask;
if (tse->opt_mask & TCPI_OPT_WSCALE) {
if (!tse->has_rcv_wscale) {
pr_err("No rcv wscale in the image\n");
goto err_c;
}
data.snd_wscale = tse->snd_wscale;
data.rcv_wscale = tse->rcv_wscale;
}
if (tse->opt_mask & TCPI_OPT_TIMESTAMPS) {
if (!tse->has_timestamp) {
pr_err("No timestamp in the image\n");
goto err_c;
}
data.timestamp = tse->timestamp;
}
if (tse->has_snd_wnd) {
data.flags |= SOCCR_FLAGS_WINDOW;
data.snd_wl1 = tse->snd_wl1;
data.snd_wnd = tse->snd_wnd;
data.max_window = tse->max_window;
data.rcv_wnd = tse->rcv_wnd;
data.rcv_wup = tse->rcv_wup;
}
(void)data;
if (restore_tcp_seqs(sk, tse))
goto err_c;