static void dn_slow_timer(unsigned long arg)
{
struct sock *sk = (struct sock *)arg;
struct dn_scp *scp = DN_SK(sk);
bh_lock_sock(sk);
if (sock_owned_by_user(sk)) {
sk_reset_timer(sk, &sk->sk_timer, jiffies + HZ / 10);
goto out;
}
if (scp->persist && scp->persist_fxn) {
if (scp->persist <= SLOW_INTERVAL) {
scp->persist = 0;
if (scp->persist_fxn(sk))
goto out;
} else {
scp->persist -= SLOW_INTERVAL;
}
}
if (scp->keepalive && scp->keepalive_fxn && (scp->state == DN_RUN)) {
if ((jiffies - scp->stamp) >= scp->keepalive)
scp->keepalive_fxn(sk);
}
sk_reset_timer(sk, &sk->sk_timer, jiffies + SLOW_INTERVAL);
out:
bh_unlock_sock(sk);
sock_put(sk);
}
/* FIXME: Is this still necessary (11.3) - currently nowhere used by DCCP. */
void dccp_send_delayed_ack(struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
/*
* FIXME: tune this timer. elapsed time fixes the skew, so no problem
* with using 2s, and active senders also piggyback the ACK into a
* DATAACK packet, so this is really for quiescent senders.
*/
unsigned long timeout = jiffies + 2 * HZ;
/* Use new timeout only if there wasn't a older one earlier. */
if (icsk->icsk_ack.pending & ICSK_ACK_TIMER) {
/* If delack timer was blocked or is about to expire,
* send ACK now.
*
* FIXME: check the "about to expire" part
*/
if (icsk->icsk_ack.blocked) {
dccp_send_ack(sk);
return;
}
if (!time_before(timeout, icsk->icsk_ack.timeout))
timeout = icsk->icsk_ack.timeout;
}
icsk->icsk_ack.pending |= ICSK_ACK_SCHED | ICSK_ACK_TIMER;
icsk->icsk_ack.timeout = timeout;
sk_reset_timer(sk, &icsk->icsk_delack_timer, timeout);
}
void dccp_write_xmit(struct sock *sk, int block)
{
struct dccp_sock *dp = dccp_sk(sk);
struct sk_buff *skb;
while ((skb = skb_peek(&sk->sk_write_queue))) {
int err = ccid_hc_tx_send_packet(dp->dccps_hc_tx_ccid, sk, skb);
if (err > 0) {
if (!block) {
sk_reset_timer(sk, &dp->dccps_xmit_timer,
msecs_to_jiffies(err)+jiffies);
break;
} else
err = dccp_wait_for_ccid(sk, skb, err);
if (err && err != -EINTR)
DCCP_BUG("err=%d after dccp_wait_for_ccid", err);
}
skb_dequeue(&sk->sk_write_queue);
if (err == 0) {
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
const int len = skb->len;
if (sk->sk_state == DCCP_PARTOPEN) {
const u32 cur_mps = dp->dccps_mss_cache - DCCP_FEATNEG_OVERHEAD;
/*
* See 8.1.5 - Handshake Completion.
*
* For robustness we resend Confirm options until the client has
* entered OPEN. During the initial feature negotiation, the MPS
* is smaller than usual, reduced by the Change/Confirm options.
*/
if (!list_empty(&dp->dccps_featneg) && len > cur_mps) {
DCCP_WARN("Payload too large (%d) for featneg.\n", len);
dccp_send_ack(sk);
dccp_feat_list_purge(&dp->dccps_featneg);
}
inet_csk_schedule_ack(sk);
inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
inet_csk(sk)->icsk_rto,
DCCP_RTO_MAX);
dcb->dccpd_type = DCCP_PKT_DATAACK;
} else if (dccp_ack_pending(sk))
dcb->dccpd_type = DCCP_PKT_DATAACK;
else
dcb->dccpd_type = DCCP_PKT_DATA;
err = dccp_transmit_skb(sk, skb);
ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
if (err)
DCCP_BUG("err=%d after ccid_hc_tx_packet_sent",
err);
} else {
dccp_pr_debug("packet discarded due to err=%d\n", err);
kfree_skb(skb);
}
}
}
static void setup_sock_sync_close_timer(struct sock *sk)
{
struct bastet_sock *bsk = sk->bastet;
bsk->bastet_timer_event = BST_TMR_CLOSE_SOCK;
sk_reset_timer(sk, &bsk->bastet_timer, jiffies + BST_SKIP_SOCK_OWNER_TIME);
}
static void ccid2_start_rto_timer(struct sock *sk)
{
struct ccid2_hc_tx_sock *hc = ccid2_hc_tx_sk(sk);
ccid2_pr_debug("setting RTO timeout=%ld\n", hc->tx_rto);
BUG_ON(timer_pending(&hc->tx_rtotimer));
sk_reset_timer(sk, &hc->tx_rtotimer, jiffies + hc->tx_rto);
}
/*
* Setup bastet sock request sync timer,
* Insure user sock can turn to valid after a while.
*/
static void setup_sock_sync_request_timer(struct sock *sk, bool retry)
{
struct bastet_sock *bsk = sk->bastet;
bsk->sync_retry = retry;
bsk->bastet_timer_event = BST_TMR_REQ_SOCK_SYNC;
bsk->bastet_timeout = jiffies + BST_REQ_SOCK_SYNC_TIME;
sk_reset_timer(sk, &bsk->bastet_timer, bsk->bastet_timeout);
}
/*
* Setup bastet sock delay sync timer.
*/
static void setup_sock_sync_delay_timer(struct sock *sk)
{
struct bastet_sock *bsk = sk->bastet;
BASTET_LOGI("delay_time=%ld", bsk->delay_sync_time_section);
bsk->bastet_timer_event = BST_TMR_DELAY_SOCK_SYNC;
bsk->bastet_timeout = bsk->last_sock_active_time_point + bsk->delay_sync_time_section;
bastet_wakelock_acquire_timeout(bsk->delay_sync_time_section + BST_WAKELOCK_TIMEOUT);
sk_reset_timer(sk, &bsk->bastet_timer, bsk->bastet_timeout);
}
void dccp_write_xmit(struct sock *sk, int block)
{
struct dccp_sock *dp = dccp_sk(sk);
struct sk_buff *skb;
while ((skb = skb_peek(&sk->sk_write_queue))) {
int err = ccid_hc_tx_send_packet(dp->dccps_hc_tx_ccid, sk, skb);
if (err > 0) {
if (!block) {
sk_reset_timer(sk, &dp->dccps_xmit_timer,
msecs_to_jiffies(err)+jiffies);
break;
} else
err = dccp_wait_for_ccid(sk, skb, err);
if (err && err != -EINTR)
DCCP_BUG("err=%d after dccp_wait_for_ccid", err);
}
skb_dequeue(&sk->sk_write_queue);
if (err == 0) {
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
const int len = skb->len;
if (sk->sk_state == DCCP_PARTOPEN) {
const u32 cur_mps = dp->dccps_mss_cache - DCCP_FEATNEG_OVERHEAD;
if (!list_empty(&dp->dccps_featneg) && len > cur_mps) {
DCCP_WARN("Payload too large (%d) for featneg.\n", len);
dccp_send_ack(sk);
dccp_feat_list_purge(&dp->dccps_featneg);
}
inet_csk_schedule_ack(sk);
inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
inet_csk(sk)->icsk_rto,
DCCP_RTO_MAX);
dcb->dccpd_type = DCCP_PKT_DATAACK;
} else if (dccp_ack_pending(sk))
dcb->dccpd_type = DCCP_PKT_DATAACK;
else
dcb->dccpd_type = DCCP_PKT_DATA;
err = dccp_transmit_skb(sk, skb);
ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
if (err)
DCCP_BUG("err=%d after ccid_hc_tx_packet_sent",
err);
} else {
dccp_pr_debug("packet discarded due to err=%d\n", err);
kfree_skb(skb);
}
}
}
void dccp_write_xmit(struct sock *sk, int block)
{
struct dccp_sock *dp = dccp_sk(sk);
struct sk_buff *skb;
long timeo = 30000; /* If a packet is taking longer than 2 secs
we have other issues */
while ((skb = skb_peek(&sk->sk_write_queue))) {
int err = ccid_hc_tx_send_packet(dp->dccps_hc_tx_ccid, sk, skb,
skb->len);
if (err > 0) {
if (!block) {
sk_reset_timer(sk, &dp->dccps_xmit_timer,
msecs_to_jiffies(err)+jiffies);
break;
} else
err = dccp_wait_for_ccid(sk, skb, &timeo);
if (err) {
printk(KERN_CRIT "%s:err at dccp_wait_for_ccid"
" %d\n", __FUNCTION__, err);
dump_stack();
}
}
skb_dequeue(&sk->sk_write_queue);
if (err == 0) {
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
const int len = skb->len;
if (sk->sk_state == DCCP_PARTOPEN) {
/* See 8.1.5. Handshake Completion */
inet_csk_schedule_ack(sk);
inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
inet_csk(sk)->icsk_rto,
DCCP_RTO_MAX);
dcb->dccpd_type = DCCP_PKT_DATAACK;
} else if (dccp_ack_pending(sk))
dcb->dccpd_type = DCCP_PKT_DATAACK;
else
dcb->dccpd_type = DCCP_PKT_DATA;
err = dccp_transmit_skb(sk, skb);
ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
if (err) {
printk(KERN_CRIT "%s:err from "
"ccid_hc_tx_packet_sent %d\n",
__FUNCTION__, err);
dump_stack();
}
} else
kfree(skb);
}
}
static void dccp_write_xmit_timer(unsigned long data) {
struct sock *sk = (struct sock *)data;
struct dccp_sock *dp = dccp_sk(sk);
bh_lock_sock(sk);
if (sock_owned_by_user(sk))
sk_reset_timer(sk, &dp->dccps_xmit_timer, jiffies+1);
else
dccp_write_xmit(sk, 0);
bh_unlock_sock(sk);
sock_put(sk);
}
static void ccid2_hc_tx_rto_expire(unsigned long data)
{
struct sock *sk = (struct sock *)data;
struct ccid2_hc_tx_sock *hctx = ccid2_hc_tx_sk(sk);
long s;
bh_lock_sock(sk);
if (sock_owned_by_user(sk)) {
sk_reset_timer(sk, &hctx->ccid2hctx_rtotimer,
jiffies + HZ / 5);
goto out;
}
ccid2_pr_debug("RTO_EXPIRE\n");
ccid2_hc_tx_check_sanity(hctx);
/* back-off timer */
hctx->ccid2hctx_rto <<= 1;
s = hctx->ccid2hctx_rto / HZ;
if (s > 60)
hctx->ccid2hctx_rto = 60 * HZ;
ccid2_start_rto_timer(sk);
/* adjust pipe, cwnd etc */
hctx->ccid2hctx_pipe = 0;
hctx->ccid2hctx_ssthresh = hctx->ccid2hctx_cwnd >> 1;
if (hctx->ccid2hctx_ssthresh < 2)
hctx->ccid2hctx_ssthresh = 2;
ccid2_change_cwnd(sk, 1);
/* clear state about stuff we sent */
hctx->ccid2hctx_seqt = hctx->ccid2hctx_seqh;
hctx->ccid2hctx_ssacks = 0;
hctx->ccid2hctx_acks = 0;
hctx->ccid2hctx_sent = 0;
/* clear ack ratio state. */
hctx->ccid2hctx_arsent = 0;
hctx->ccid2hctx_ackloss = 0;
hctx->ccid2hctx_rpseq = 0;
hctx->ccid2hctx_rpdupack = -1;
ccid2_change_l_ack_ratio(sk, 1);
ccid2_hc_tx_check_sanity(hctx);
out:
bh_unlock_sock(sk);
sock_put(sk);
}
/*
* Setup sock set timer.
*/
static int setup_sock_sync_set_timer(struct sock *sk, struct bst_sock_sync_prop *sync_p)
{
struct bastet_sock *bsk = sk->bastet;
bsk->sync_p = kmalloc(sizeof(*sync_p), GFP_KERNEL);
if (NULL == bsk->sync_p) {
return -ENOMEM;
}
memcpy(bsk->sync_p, sync_p, sizeof(*sync_p));
bsk->bastet_timer_event = BST_TMR_SET_SOCK_SYNC;
sk_reset_timer(sk, &bsk->bastet_timer, jiffies + BST_SKIP_SOCK_OWNER_TIME);
return 0;
}
void dccp_write_xmit(struct sock *sk, int block)
{
struct dccp_sock *dp = dccp_sk(sk);
struct sk_buff *skb;
while ((skb = skb_peek(&sk->sk_write_queue))) {
int err = ccid_hc_tx_send_packet(dp->dccps_hc_tx_ccid, sk, skb);
if (err > 0) {
if (!block) {
sk_reset_timer(sk, &dp->dccps_xmit_timer,
msecs_to_jiffies(err)+jiffies);
break;
} else
err = dccp_wait_for_ccid(sk, skb, err);
if (err && err != -EINTR)
DCCP_BUG("err=%d after dccp_wait_for_ccid", err);
}
skb_dequeue(&sk->sk_write_queue);
if (err == 0) {
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
const int len = skb->len;
if (sk->sk_state == DCCP_PARTOPEN) {
/* See 8.1.5. Handshake Completion */
inet_csk_schedule_ack(sk);
inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
inet_csk(sk)->icsk_rto,
DCCP_RTO_MAX);
dcb->dccpd_type = DCCP_PKT_DATAACK;
} else if (dccp_ack_pending(sk))
dcb->dccpd_type = DCCP_PKT_DATAACK;
else
dcb->dccpd_type = DCCP_PKT_DATA;
err = dccp_transmit_skb(sk, skb);
ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
if (err)
DCCP_BUG("err=%d after ccid_hc_tx_packet_sent",
err);
} else {
dccp_pr_debug("packet discarded due to err=%d\n", err);
kfree_skb(skb);
}
}
}
/*
* Bastet sock timeout, include all bastet time events.
*/
static void bastet_sock_bastet_timeout(unsigned long data)
{
int event;
struct sock *sk = (struct sock *)data;
struct bastet_sock *bsk = sk->bastet;
BASTET_LOGI("sk: %p time event: %d", sk, bsk->bastet_timer_event);
bh_lock_sock(sk);
/* Include in lock */
event = bsk->bastet_timer_event;
if (sock_owned_by_user(sk)) {
/* Try again later */
if (BST_TMR_DELAY_SOCK_SYNC == event) {
bastet_wakelock_acquire_timeout(BST_SKIP_SOCK_OWNER_TIME + BST_WAKELOCK_TIMEOUT);
}
sk_reset_timer(sk, &bsk->bastet_timer, jiffies + BST_SKIP_SOCK_OWNER_TIME);
goto out_unlock;
}
switch(event){
case BST_TMR_REQ_SOCK_SYNC:
request_sock_bastet_timeout(sk);
break;
case BST_TMR_SET_SOCK_SYNC:
set_sock_bastet_timeout(sk);
break;
case BST_TMR_DELAY_SOCK_SYNC:
delay_sock_bastet_timeout(sk);
break;
case BST_TMR_CLOSE_SOCK:
close_sock_bastet_timeout(sk);
break;
default:
BASTET_LOGE("sk: %p invalid time event: %d", sk, event);
break;
}
sk_mem_reclaim(sk);
out_unlock:
bh_unlock_sock(sk);
sock_put(sk);
}
void dccp_send_delayed_ack(struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
unsigned long timeout = jiffies + 2 * HZ;
if (icsk->icsk_ack.pending & ICSK_ACK_TIMER) {
if (icsk->icsk_ack.blocked) {
dccp_send_ack(sk);
return;
}
if (!time_before(timeout, icsk->icsk_ack.timeout))
timeout = icsk->icsk_ack.timeout;
}
icsk->icsk_ack.pending |= ICSK_ACK_SCHED | ICSK_ACK_TIMER;
icsk->icsk_ack.timeout = timeout;
sk_reset_timer(sk, &icsk->icsk_delack_timer, timeout);
}
/*
* BST_TMR_REQ_SOCK_SYNC timeout.
* Request sync time is up, but sock sync properties still invalid.
* Usually, daemon should set sock sync properties before timeout.
*/
static void request_sock_bastet_timeout(struct sock *sk)
{
struct bastet_sock *bsk = sk->bastet;
/* Accurating time */
if (time_after(bsk->bastet_timeout, jiffies)) {
sk_reset_timer(sk, &bsk->bastet_timer, bsk->bastet_timeout);
return;
}
/* We must reset timer event, bastet_delay_sock_sync_notify depends on it
* this code must be put after accurating time
*/
bsk->bastet_timer_event = BST_TMR_EVT_INVALID;
if (BST_SOCK_UPDATING != bsk->bastet_sock_state){
BASTET_LOGE("sk: %p state: %d not expected", sk, bsk->bastet_sock_state);
return;
}
/* Try reuqest timer again */
if (bsk->sync_retry) {
request_sock_sync(sk);
return;
}
/* If goes here, bastet sock sync failed,
* Send or recv data anyway. */
BASTET_LOGE("sk: %p request timeout", sk);
if (BST_USER_START == bsk->user_ctrl) {
/* Before send or recv data, set state to BST_SOCK_VALID*/
bsk->bastet_sock_state = BST_SOCK_VALID;
process_sock_send_and_recv(sk);
} else {
bsk->bastet_sock_state = BST_SOCK_NOT_USED;
}
}
void dccp_write_xmit(struct sock *sk)
{
struct dccp_sock *dp = dccp_sk(sk);
struct sk_buff *skb;
while ((skb = dccp_qpolicy_top(sk))) {
int rc = ccid_hc_tx_send_packet(dp->dccps_hc_tx_ccid, sk, skb);
switch (ccid_packet_dequeue_eval(rc)) {
case CCID_PACKET_WILL_DEQUEUE_LATER:
return;
case CCID_PACKET_DELAY:
sk_reset_timer(sk, &dp->dccps_xmit_timer,
jiffies + msecs_to_jiffies(rc));
return;
case CCID_PACKET_SEND_AT_ONCE:
dccp_xmit_packet(sk);
break;
case CCID_PACKET_ERR:
dccp_qpolicy_drop(sk, skb);
dccp_pr_debug("packet discarded due to err=%d\n", rc);
}
}
}
void l2cap_sock_set_timer(struct sock *sk, long timeout)
{
BT_DBG("sk %p state %d timeout %ld", sk, sk->sk_state, timeout);
sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout);
}
static int rst_socket_tcp(struct cpt_sock_image *si, loff_t pos, struct sock *sk,
struct cpt_context *ctx)
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
tp->pred_flags = si->cpt_pred_flags;
tp->rcv_nxt = si->cpt_rcv_nxt;
tp->snd_nxt = si->cpt_snd_nxt;
tp->snd_una = si->cpt_snd_una;
tp->snd_sml = si->cpt_snd_sml;
tp->rcv_tstamp = tcp_jiffies_import(si->cpt_rcv_tstamp);
tp->lsndtime = tcp_jiffies_import(si->cpt_lsndtime);
tp->tcp_header_len = si->cpt_tcp_header_len;
inet_csk(sk)->icsk_ack.pending = si->cpt_ack_pending;
inet_csk(sk)->icsk_ack.quick = si->cpt_quick;
inet_csk(sk)->icsk_ack.pingpong = si->cpt_pingpong;
inet_csk(sk)->icsk_ack.blocked = si->cpt_blocked;
inet_csk(sk)->icsk_ack.ato = si->cpt_ato;
inet_csk(sk)->icsk_ack.timeout = jiffies_import(si->cpt_ack_timeout);
inet_csk(sk)->icsk_ack.lrcvtime = tcp_jiffies_import(si->cpt_lrcvtime);
inet_csk(sk)->icsk_ack.last_seg_size = si->cpt_last_seg_size;
inet_csk(sk)->icsk_ack.rcv_mss = si->cpt_rcv_mss;
tp->snd_wl1 = si->cpt_snd_wl1;
tp->snd_wnd = si->cpt_snd_wnd;
tp->max_window = si->cpt_max_window;
inet_csk(sk)->icsk_pmtu_cookie = si->cpt_pmtu_cookie;
tp->mss_cache = si->cpt_mss_cache;
tp->rx_opt.mss_clamp = si->cpt_mss_clamp;
inet_csk(sk)->icsk_ext_hdr_len = si->cpt_ext_header_len;
inet_csk(sk)->icsk_ca_state = si->cpt_ca_state;
inet_csk(sk)->icsk_retransmits = si->cpt_retransmits;
tp->reordering = si->cpt_reordering;
tp->frto_counter = si->cpt_frto_counter;
tp->frto_highmark = si->cpt_frto_highmark;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
// // tp->adv_cong = si->cpt_adv_cong;
#endif
inet_csk(sk)->icsk_accept_queue.rskq_defer_accept = si->cpt_defer_accept;
inet_csk(sk)->icsk_backoff = si->cpt_backoff;
tp->srtt = si->cpt_srtt;
tp->mdev = si->cpt_mdev;
tp->mdev_max = si->cpt_mdev_max;
tp->rttvar = si->cpt_rttvar;
tp->rtt_seq = si->cpt_rtt_seq;
inet_csk(sk)->icsk_rto = si->cpt_rto;
tp->packets_out = si->cpt_packets_out;
tp->retrans_out = si->cpt_retrans_out;
tp->lost_out = si->cpt_lost_out;
tp->sacked_out = si->cpt_sacked_out;
tp->fackets_out = si->cpt_fackets_out;
tp->snd_ssthresh = si->cpt_snd_ssthresh;
tp->snd_cwnd = si->cpt_snd_cwnd;
tp->snd_cwnd_cnt = si->cpt_snd_cwnd_cnt;
tp->snd_cwnd_clamp = si->cpt_snd_cwnd_clamp;
tp->snd_cwnd_used = si->cpt_snd_cwnd_used;
tp->snd_cwnd_stamp = tcp_jiffies_import(si->cpt_snd_cwnd_stamp);
inet_csk(sk)->icsk_timeout = tcp_jiffies_import(si->cpt_timeout);
tp->rcv_wnd = si->cpt_rcv_wnd;
tp->rcv_wup = si->cpt_rcv_wup;
tp->write_seq = si->cpt_write_seq;
tp->pushed_seq = si->cpt_pushed_seq;
tp->copied_seq = si->cpt_copied_seq;
tp->rx_opt.tstamp_ok = si->cpt_tstamp_ok;
tp->rx_opt.wscale_ok = si->cpt_wscale_ok;
tp->rx_opt.sack_ok = si->cpt_sack_ok;
tp->rx_opt.saw_tstamp = si->cpt_saw_tstamp;
tp->rx_opt.snd_wscale = si->cpt_snd_wscale;
tp->rx_opt.rcv_wscale = si->cpt_rcv_wscale;
tp->nonagle = si->cpt_nonagle;
tp->keepalive_probes = si->cpt_keepalive_probes;
tp->rx_opt.rcv_tsval = si->cpt_rcv_tsval;
tp->rx_opt.rcv_tsecr = si->cpt_rcv_tsecr;
tp->rx_opt.ts_recent = si->cpt_ts_recent;
tp->rx_opt.ts_recent_stamp = si->cpt_ts_recent_stamp;
tp->rx_opt.user_mss = si->cpt_user_mss;
tp->rx_opt.dsack = si->cpt_dsack;
tp->duplicate_sack[0].start_seq = si->cpt_sack_array[0];
tp->duplicate_sack[0].end_seq = si->cpt_sack_array[1];
tp->selective_acks[0].start_seq = si->cpt_sack_array[2];
tp->selective_acks[0].end_seq = si->cpt_sack_array[3];
tp->selective_acks[1].start_seq = si->cpt_sack_array[4];
tp->selective_acks[1].end_seq = si->cpt_sack_array[5];
tp->selective_acks[2].start_seq = si->cpt_sack_array[6];
tp->selective_acks[2].end_seq = si->cpt_sack_array[7];
tp->selective_acks[3].start_seq = si->cpt_sack_array[8];
tp->selective_acks[3].end_seq = si->cpt_sack_array[9];
tp->window_clamp = si->cpt_window_clamp;
tp->rcv_ssthresh = si->cpt_rcv_ssthresh;
inet_csk(sk)->icsk_probes_out = si->cpt_probes_out;
tp->rx_opt.num_sacks = si->cpt_num_sacks;
tp->advmss = si->cpt_advmss;
inet_csk(sk)->icsk_syn_retries = si->cpt_syn_retries;
tp->ecn_flags = si->cpt_ecn_flags;
tp->prior_ssthresh = si->cpt_prior_ssthresh;
tp->high_seq = si->cpt_high_seq;
tp->retrans_stamp = si->cpt_retrans_stamp;
tp->undo_marker = si->cpt_undo_marker;
tp->undo_retrans = si->cpt_undo_retrans;
tp->urg_seq = si->cpt_urg_seq;
tp->urg_data = si->cpt_urg_data;
inet_csk(sk)->icsk_pending = si->cpt_pending;
tp->snd_up = si->cpt_snd_up;
tp->keepalive_time = si->cpt_keepalive_time;
tp->keepalive_intvl = si->cpt_keepalive_intvl;
tp->linger2 = si->cpt_linger2;
sk->sk_send_head = NULL;
for (skb = skb_peek(&sk->sk_write_queue);
skb && skb != (struct sk_buff*)&sk->sk_write_queue;
skb = skb->next) {
if (!after(tp->snd_nxt, TCP_SKB_CB(skb)->seq)) {
sk->sk_send_head = skb;
break;
}
}
if (sk->sk_state != TCP_CLOSE && sk->sk_state != TCP_LISTEN) {
struct inet_sock *inet = inet_sk(sk);
if (inet->num == 0) {
cpt_object_t *lobj = NULL;
if ((int)si->cpt_parent != -1)
lobj = lookup_cpt_obj_byindex(CPT_OBJ_SOCKET, si->cpt_parent, ctx);
if (lobj && lobj->o_obj) {
inet->num = ntohs(inet->sport);
local_bh_disable();
__inet_inherit_port(lobj->o_obj, sk);
local_bh_enable();
dprintk_ctx("port inherited from parent\n");
} else {
struct sock *lsk = find_parent(inet->sport, ctx);
if (lsk) {
inet->num = ntohs(inet->sport);
local_bh_disable();
__inet_inherit_port(lsk, sk);
local_bh_enable();
dprintk_ctx("port inherited\n");
} else {
eprintk_ctx("we are kinda lost...\n");
}
}
}
sk->sk_prot->hash(sk);
if (inet_csk(sk)->icsk_ack.pending&ICSK_ACK_TIMER)
sk_reset_timer(sk, &inet_csk(sk)->icsk_delack_timer, inet_csk(sk)->icsk_ack.timeout);
if (inet_csk(sk)->icsk_pending)
sk_reset_timer(sk, &inet_csk(sk)->icsk_retransmit_timer,
inet_csk(sk)->icsk_timeout);
if (sock_flag(sk, SOCK_KEEPOPEN)) {
unsigned long expires = jiffies_import(si->cpt_ka_timeout);
if (time_after(jiffies, expires))
expires = jiffies + HZ;
sk_reset_timer(sk, &sk->sk_timer, expires);
}
}
if (sk->sk_family == AF_INET6)
sk->sk_gso_type = SKB_GSO_TCPV6;
else
sk->sk_gso_type = SKB_GSO_TCPV4;
return 0;
}
/*
* BST_TMR_DELAY_SOCK_SYNC timeout.
* If sock is ready, get sock sync properties and post them to daemon
*/
static void delay_sock_bastet_timeout(struct sock *sk)
{
int err;
struct bst_set_sock_sync_prop sock_p;
struct bastet_sock *bsk = sk->bastet;
/* Accurating time */
if (time_after(bsk->bastet_timeout, jiffies)) {
sk_reset_timer(sk, &bsk->bastet_timer, bsk->bastet_timeout);
return;
}
/* We must reset timer event, bastet_delay_sock_sync_notify depends on it
* this code must be put after accurating time
*/
bsk->bastet_timer_event = BST_TMR_EVT_INVALID;
/* In repair mode or userspace needs repair, do not sync sock */
if (unlikely(tcp_sk(sk)->repair || bsk->need_repair)) {
BASTET_LOGE("sk: %p in repair mode", sk);
return;
}
if (TCP_ESTABLISHED != sk->sk_state) {
BASTET_LOGE("sk: %p sk_state is not TCP_ESTABLISHED", sk);
return;
}
if (BST_SOCK_VALID != bsk->bastet_sock_state) {
BASTET_LOGE("sk: %p state: %d not expected", sk, bsk->bastet_sock_state);
return;
}
/* Sock owner has used since last setup */
if (time_after(bsk->last_sock_active_time_point + bsk->delay_sync_time_section, jiffies)) {
setup_sock_sync_delay_timer(sk);
return;
}
/* Sock owner has some data unacked,
* Coming ack would trigger delay timer again */
if (!tcp_write_queue_empty(sk)) {
BASTET_LOGI("sk: %p has sent data not acked", sk);
post_indicate_packet(BST_IND_TRIGGER_THAW, &bsk->pid, sizeof(pid_t));
return;
}
/* Sock owner has some data to recv, do not sync.
* If sock owner has none recv action,
* delay timer should be stopped. */
if (!skb_queue_empty(&sk->sk_receive_queue)) {
BASTET_LOGI("sk: %p has received data in queue", sk);
bsk->last_sock_active_time_point = jiffies;
setup_sock_sync_delay_timer(sk);
post_indicate_packet(BST_IND_TRIGGER_THAW, &bsk->pid, sizeof(pid_t));
return;
}
memset(&sock_p, 0, sizeof(struct bst_set_sock_sync_prop));
bastet_get_comm_prop(sk, &sock_p.guide);
bastet_get_sock_prop(sk, &sock_p.sync_prop);
err = post_indicate_packet(BST_IND_SOCK_SYNC_PROP, &sock_p, sizeof(sock_p));
if (!err) {
/* if post success */
bsk->bastet_sock_state = BST_SOCK_INVALID;
}
}
void dn_start_slow_timer(struct sock *sk)
{
setup_timer(&sk->sk_timer, dn_slow_timer, (unsigned long)sk);
sk_reset_timer(sk, &sk->sk_timer, jiffies + SLOW_INTERVAL);
}
