/* What was the inbound interface for this chunk? */
int sctp_chunk_iif(const struct sctp_chunk *chunk)
{
struct sctp_af *af;
int iif = 0;
af = sctp_get_af_specific(ipver2af(ip_hdr(chunk->skb)->version));
if (af)
iif = af->skb_iif(chunk->skb);
return iif;
}
/* Initialize a new transport from provided memory. */
static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
const union sctp_addr *addr,
gfp_t gfp)
{
/* Copy in the address. */
peer->ipaddr = *addr;
peer->af_specific = sctp_get_af_specific(addr->sa.sa_family);
memset(&peer->saddr, 0, sizeof(union sctp_addr));
peer->sack_generation = 0;
/* From 6.3.1 RTO Calculation:
*
* C1) Until an RTT measurement has been made for a packet sent to the
* given destination transport address, set RTO to the protocol
* parameter 'RTO.Initial'.
*/
peer->rto = msecs_to_jiffies(sctp_rto_initial);
peer->last_time_heard = jiffies;
peer->last_time_ecne_reduced = jiffies;
peer->param_flags = SPP_HB_DISABLE |
SPP_PMTUD_ENABLE |
SPP_SACKDELAY_ENABLE;
/* Initialize the default path max_retrans. */
peer->pathmaxrxt = sctp_max_retrans_path;
peer->pf_retrans = sctp_pf_retrans;
INIT_LIST_HEAD(&peer->transmitted);
INIT_LIST_HEAD(&peer->send_ready);
INIT_LIST_HEAD(&peer->transports);
setup_timer(&peer->T3_rtx_timer, sctp_generate_t3_rtx_event,
(unsigned long)peer);
setup_timer(&peer->hb_timer, sctp_generate_heartbeat_event,
(unsigned long)peer);
setup_timer(&peer->proto_unreach_timer,
sctp_generate_proto_unreach_event, (unsigned long)peer);
init_timer(&peer->proto_unreach_timer);
peer->proto_unreach_timer.function = sctp_generate_proto_unreach_event;
peer->proto_unreach_timer.data = (unsigned long)peer;
/* Initialize the 64-bit random nonce sent with heartbeat. */
get_random_bytes(&peer->hb_nonce, sizeof(peer->hb_nonce));
atomic_set(&peer->refcnt, 1);
return peer;
}
static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
const union sctp_addr *addr,
gfp_t gfp)
{
peer->ipaddr = *addr;
peer->af_specific = sctp_get_af_specific(addr->sa.sa_family);
memset(&peer->saddr, 0, sizeof(union sctp_addr));
peer->rto = msecs_to_jiffies(sctp_rto_initial);
peer->last_time_heard = jiffies;
peer->last_time_ecne_reduced = jiffies;
peer->param_flags = SPP_HB_DISABLE |
SPP_PMTUD_ENABLE |
SPP_SACKDELAY_ENABLE;
peer->pathmaxrxt = sctp_max_retrans_path;
INIT_LIST_HEAD(&peer->transmitted);
INIT_LIST_HEAD(&peer->send_ready);
INIT_LIST_HEAD(&peer->transports);
setup_timer(&peer->T3_rtx_timer, sctp_generate_t3_rtx_event,
(unsigned long)peer);
setup_timer(&peer->hb_timer, sctp_generate_heartbeat_event,
(unsigned long)peer);
setup_timer(&peer->proto_unreach_timer,
sctp_generate_proto_unreach_event, (unsigned long)peer);
get_random_bytes(&peer->hb_nonce, sizeof(peer->hb_nonce));
atomic_set(&peer->refcnt, 1);
return peer;
}
/* Initialize a new transport from provided memory. */
static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
const union sctp_addr *addr,
gfp_t gfp)
{
/* Copy in the address. */
peer->ipaddr = *addr;
peer->af_specific = sctp_get_af_specific(addr->sa.sa_family);
peer->asoc = NULL;
peer->dst = NULL;
memset(&peer->saddr, 0, sizeof(union sctp_addr));
/* From 6.3.1 RTO Calculation:
*
* C1) Until an RTT measurement has been made for a packet sent to the
* given destination transport address, set RTO to the protocol
* parameter 'RTO.Initial'.
*/
peer->rto = msecs_to_jiffies(sctp_rto_initial);
peer->rtt = 0;
peer->rttvar = 0;
peer->srtt = 0;
peer->rto_pending = 0;
peer->hb_sent = 0;
peer->fast_recovery = 0;
peer->last_time_heard = jiffies;
peer->last_time_ecne_reduced = jiffies;
peer->init_sent_count = 0;
peer->param_flags = SPP_HB_DISABLE |
SPP_PMTUD_ENABLE |
SPP_SACKDELAY_ENABLE;
peer->hbinterval = 0;
/* Initialize the default path max_retrans. */
peer->pathmaxrxt = sctp_max_retrans_path;
peer->error_count = 0;
INIT_LIST_HEAD(&peer->transmitted);
INIT_LIST_HEAD(&peer->send_ready);
INIT_LIST_HEAD(&peer->transports);
peer->T3_rtx_timer.expires = 0;
peer->hb_timer.expires = 0;
setup_timer(&peer->T3_rtx_timer, sctp_generate_t3_rtx_event,
(unsigned long)peer);
setup_timer(&peer->hb_timer, sctp_generate_heartbeat_event,
(unsigned long)peer);
setup_timer(&peer->proto_unreach_timer,
sctp_generate_proto_unreach_event, (unsigned long)peer);
/* Initialize the 64-bit random nonce sent with heartbeat. */
get_random_bytes(&peer->hb_nonce, sizeof(peer->hb_nonce));
atomic_set(&peer->refcnt, 1);
peer->dead = 0;
peer->malloced = 0;
/* Initialize the state information for SFR-CACC */
peer->cacc.changeover_active = 0;
peer->cacc.cycling_changeover = 0;
peer->cacc.next_tsn_at_change = 0;
peer->cacc.cacc_saw_newack = 0;
return peer;
}
cnt = sctp_copy_laddrs_to_user_old(sk, bp->port,
getaddrs.addr_num,
to);
if (cnt < 0) {
err = cnt;
goto unlock;
}
goto copy_getaddrs;
}
}
list_for_each(pos, &bp->address_list) {
addr = list_entry(pos, struct sctp_sockaddr_entry, list);
memcpy(&temp, &addr->a, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp, &temp);
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
temp.v4.sin_port = htons(temp.v4.sin_port);
if (copy_to_user(to, &temp, addrlen)) {
err = -EFAULT;
goto unlock;
}
to += addrlen;
cnt ++;
if (cnt >= getaddrs.addr_num) break;
}
copy_getaddrs:
getaddrs.addr_num = cnt;
if (copy_to_user(optval, &getaddrs, sizeof(struct sctp_getaddrs_old)))
err = -EFAULT;
