Commit 63c6e5b3 authored by Sridhar Samudrala's avatar Sridhar Samudrala

[SCTP] Support for Peer address parameters socket option.

parent cd722282
......@@ -27,6 +27,7 @@
*
* La Monte H.P. Yarroll <piggy@acm.org>
* Karl Knutson <karl@athena.chicago.il.us>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
......@@ -72,6 +73,7 @@ typedef enum {
SCTP_CMD_STRIKE, /* Mark a strike against a transport. */
SCTP_CMD_TRANSMIT, /* Transmit the outqueue. */
SCTP_CMD_HB_TIMERS_START, /* Start the heartbeat timers. */
SCTP_CMD_HB_TIMERS_UPDATE, /* Update the heartbeat timers. */
SCTP_CMD_TRANSPORT_RESET, /* Reset the status of a transport. */
SCTP_CMD_TRANSPORT_ON, /* Mark the transport as active. */
SCTP_CMD_REPORT_ERROR, /* Pass this error back out of the sm. */
......
......@@ -142,7 +142,7 @@ extern int sctp_primitive_ASSOCIATE(sctp_association_t *, void *arg);
extern int sctp_primitive_SHUTDOWN(sctp_association_t *, void *arg);
extern int sctp_primitive_ABORT(sctp_association_t *, void *arg);
extern int sctp_primitive_SEND(sctp_association_t *, void *arg);
extern int sctp_primitive_REQUESTHEARTBEAT(sctp_association_t *, void *arg);
/*
* sctp_crc32c.c
......
......@@ -157,6 +157,7 @@ sctp_state_fn_t sctp_sf_shutdown_ack_sent_prm_abort;
sctp_state_fn_t sctp_sf_error_closed;
sctp_state_fn_t sctp_sf_error_shutdown;
sctp_state_fn_t sctp_sf_ignore_primitive;
sctp_state_fn_t sctp_sf_do_prm_requestheartbeat;
/* Prototypes for other event state functions. */
sctp_state_fn_t sctp_sf_do_9_2_start_shutdown;
......
......@@ -684,13 +684,15 @@ struct SCTP_transport {
*/
unsigned long last_time_ecne_reduced;
/* state : The current state of this destination,
* : i.e. DOWN, UP, ALLOW-HB, NO-HEARTBEAT, etc.
/* active : The current active state of this destination,
* : i.e. DOWN, UP, etc.
*/
struct {
int active;
/* hb_allowed : The current heartbeat state of this destination,
* : i.e. ALLOW-HB, NO-HEARTBEAT, etc.
*/
int hb_allowed;
} state;
/* These are the error stats for this destination. */
......
......@@ -461,6 +461,9 @@ sctp_transport_t *sctp_assoc_add_peer(sctp_association_t *asoc,
min(asoc->overall_error_threshold + peer->error_threshold,
asoc->max_retrans);
/* By default, enable heartbeat for peer address. */
peer->hb_allowed = 1;
/* Initialize the peer's heartbeat interval based on the
* sock configured value.
*/
......@@ -523,12 +526,12 @@ void sctp_assoc_control_transport(sctp_association_t *asoc,
/* Record the transition on the transport. */
switch (command) {
case SCTP_TRANSPORT_UP:
transport->state.active = 1;
transport->active = 1;
spc_state = ADDRESS_AVAILABLE;
break;
case SCTP_TRANSPORT_DOWN:
transport->state.active = 0;
transport->active = 0;
spc_state = ADDRESS_UNREACHABLE;
break;
......@@ -558,7 +561,7 @@ void sctp_assoc_control_transport(sctp_association_t *asoc,
list_for_each(pos, &asoc->peer.transport_addr_list) {
t = list_entry(pos, sctp_transport_t, transports);
if (!t->state.active)
if (!t->active)
continue;
if (!first || t->last_time_heard > first->last_time_heard) {
second = first;
......@@ -578,7 +581,7 @@ void sctp_assoc_control_transport(sctp_association_t *asoc,
* [If the primary is active but not most recent, bump the most
* recently used transport.]
*/
if (asoc->peer.primary_path->state.active &&
if (asoc->peer.primary_path->active &&
first != asoc->peer.primary_path) {
second = first;
first = asoc->peer.primary_path;
......@@ -1018,7 +1021,7 @@ sctp_transport_t *sctp_assoc_choose_shutdown_transport(sctp_association_t *asoc)
/* Try to find an active transport. */
if (t->state.active) {
if (t->active) {
break;
} else {
/* Keep track of the next transport in case
......
......@@ -678,7 +678,7 @@ int sctp_flush_outqueue(sctp_outqueue_t *q, int rtx_timeout)
if (!new_transport) {
new_transport = asoc->peer.active_path;
} else if (!new_transport->state.active) {
} else if (!new_transport->active) {
/* If the chunk is Heartbeat, send it to
* chunk->transport, even it's inactive.
*/
......@@ -835,7 +835,7 @@ int sctp_flush_outqueue(sctp_outqueue_t *q, int rtx_timeout)
*/
new_transport = chunk->transport;
if (new_transport == NULL ||
!new_transport->state.active)
!new_transport->active)
new_transport = asoc->peer.active_path;
/* Change packets if necessary. */
......@@ -1404,7 +1404,7 @@ static void sctp_check_transmitted(sctp_outqueue_t *q,
/* Mark the destination transport address as
* active if it is not so marked.
*/
if (!transport->state.active) {
if (!transport->active) {
sctp_assoc_control_transport(
transport->asoc,
transport,
......
......@@ -38,6 +38,7 @@
* La Monte H.P. Yarroll <piggy@acm.org>
* Narasimha Budihal <narasimha@refcode.org>
* Karl Knutson <karl@athena.chicago.il.us>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
......@@ -181,6 +182,28 @@ DECLARE_PRIMITIVE(ABORT);
DECLARE_PRIMITIVE(SEND);
/* 10.1 ULP-to-SCTP
* J) Request Heartbeat
*
* Format: REQUESTHEARTBEAT(association id, destination transport address)
*
* -> result
*
* Instructs the local endpoint to perform a HeartBeat on the specified
* destination transport address of the given association. The returned
* result should indicate whether the transmission of the HEARTBEAT
* chunk to the destination address is successful.
*
* Mandatory attributes:
*
* o association id - local handle to the SCTP association
*
* o destination transport address - the transport address of the
* asociation on which a heartbeat should be issued.
*/
DECLARE_PRIMITIVE(REQUESTHEARTBEAT);
/* COMMENT BUG. Find out where this is mentioned in the spec. */
int sctp_other_icmp_unreachfrag(sctp_association_t *asoc, void *arg)
{
......
......@@ -41,6 +41,7 @@
* Dajiang Zhang <dajiang.zhang@nokia.com>
* Daisy Chang <daisyc@us.ibm.com>
* Sridhar Samudrala <sri@us.ibm.com>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
......@@ -73,6 +74,8 @@ static void sctp_cmd_process_init(sctp_cmd_seq_t *, sctp_association_t *asoc,
sctp_init_chunk_t *peer_init,
int priority);
static void sctp_cmd_hb_timers_start(sctp_cmd_seq_t *, sctp_association_t *);
static void sctp_cmd_hb_timers_update(sctp_cmd_seq_t *, sctp_association_t *,
sctp_transport_t *);
static void sctp_cmd_set_bind_addrs(sctp_cmd_seq_t *, sctp_association_t *,
sctp_bind_addr_t *);
static void sctp_cmd_transport_reset(sctp_cmd_seq_t *, sctp_association_t *,
......@@ -193,6 +196,7 @@ int sctp_side_effects(sctp_event_t event_type, sctp_subtype_t subtype,
/* BUG--we should now recover some memory, probably by
* reneging...
*/
error = -ENOMEM;
break;
case SCTP_DISPOSITION_DELETE_TCB:
......@@ -561,6 +565,11 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
sctp_cmd_hb_timers_start(commands, asoc);
break;
case SCTP_CMD_HB_TIMERS_UPDATE:
t = command->obj.transport;
sctp_cmd_hb_timers_update(commands, asoc, t);
break;
case SCTP_CMD_REPORT_ERROR:
error = command->obj.error;
break;
......@@ -978,7 +987,7 @@ static void sctp_do_8_2_transport_strike(sctp_association_t *asoc,
*/
asoc->overall_error_count++;
if (transport->state.active &&
if (transport->active &&
(transport->error_count++ >= transport->error_threshold)) {
SCTP_DEBUG_PRINTK("transport_strike: transport "
"IP:%d.%d.%d.%d failed.\n",
......@@ -1096,6 +1105,16 @@ static void sctp_cmd_hb_timers_start(sctp_cmd_seq_t *cmds,
}
}
/* Helper function to update the heartbeat timer. */
static void sctp_cmd_hb_timers_update(sctp_cmd_seq_t *cmds,
sctp_association_t *asoc,
sctp_transport_t *t)
{
/* Update the heartbeat timer. */
if (!mod_timer(&t->hb_timer, t->hb_interval + t->rto + jiffies))
sctp_transport_hold(t);
}
/* Helper function to break out SCTP_CMD_SET_BIND_ADDR handling. */
void sctp_cmd_set_bind_addrs(sctp_cmd_seq_t *cmds, sctp_association_t *asoc,
sctp_bind_addr_t *bp)
......@@ -1131,7 +1150,7 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
/* Mark the destination transport address as active if it is not so
* marked.
*/
if (!t->state.active)
if (!t->active)
sctp_assoc_control_transport(asoc, t, SCTP_TRANSPORT_UP,
SCTP_HEARTBEAT_SUCCESS);
......@@ -1154,10 +1173,6 @@ static void sctp_cmd_transport_reset(sctp_cmd_seq_t *cmds,
/* Mark one strike against a transport. */
sctp_do_8_2_transport_strike(asoc, t);
/* Update the heartbeat timer. */
if (!mod_timer(&t->hb_timer, t->hb_interval + t->rto + jiffies))
sctp_transport_hold(t);
}
/* Helper function to process the process SACK command. */
......
......@@ -664,8 +664,8 @@ sctp_disposition_t sctp_sf_do_5_1E_ca(const sctp_endpoint_t *ep,
return SCTP_DISPOSITION_NOMEM;
}
/* Generate a HEARTBEAT packet on the given transport. */
sctp_disposition_t sctp_sf_sendbeat_8_3(const sctp_endpoint_t *ep,
/* Generate and sendout a heartbeat packet. */
sctp_disposition_t sctp_sf_heartbeat(const sctp_endpoint_t *ep,
const sctp_association_t *asoc,
const sctp_subtype_t type,
void *arg,
......@@ -676,26 +676,13 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const sctp_endpoint_t *ep,
sctp_sender_hb_info_t hbinfo;
size_t paylen = 0;
if (asoc->overall_error_count >= asoc->overall_error_threshold) {
/* CMD_ASSOC_FAILED calls CMD_DELETE_TCB. */
sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED, SCTP_NULL());
return SCTP_DISPOSITION_DELETE_TCB;
}
/* Section 3.3.5.
* The Sender-specific Heartbeat Info field should normally include
* information about the sender's current time when this HEARTBEAT
* chunk is sent and the destination transport address to which this
* HEARTBEAT is sent (see Section 8.3).
*/
hbinfo.param_hdr.type = SCTP_PARAM_HEARTBEAT_INFO;
hbinfo.param_hdr.length = htons(sizeof(sctp_sender_hb_info_t));
hbinfo.daddr = transport->ipaddr;
hbinfo.sent_at = jiffies;
/* Set rto_pending indicating that an RTT measurement is started
* with this heartbeat chunk.
/* Set rto_pending indicating that an RTT measurement
* is started with this heartbeat chunk.
*/
transport->rto_pending = 1;
......@@ -703,20 +690,49 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const sctp_endpoint_t *ep,
paylen = sizeof(sctp_sender_hb_info_t);
reply = sctp_make_heartbeat(asoc, transport, &hbinfo, paylen);
if (!reply)
goto nomem;
return SCTP_DISPOSITION_NOMEM;
sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(reply));
return SCTP_DISPOSITION_CONSUME;
}
/* Generate a HEARTBEAT packet on the given transport. */
sctp_disposition_t sctp_sf_sendbeat_8_3(const sctp_endpoint_t *ep,
const sctp_association_t *asoc,
const sctp_subtype_t type,
void *arg,
sctp_cmd_seq_t *commands)
{
sctp_transport_t *transport = (sctp_transport_t *) arg;
if (asoc->overall_error_count >= asoc->overall_error_threshold) {
/* CMD_ASSOC_FAILED calls CMD_DELETE_TCB. */
sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED, SCTP_NULL());
return SCTP_DISPOSITION_DELETE_TCB;
}
/* Section 3.3.5.
* The Sender-specific Heartbeat Info field should normally include
* information about the sender's current time when this HEARTBEAT
* chunk is sent and the destination transport address to which this
* HEARTBEAT is sent (see Section 8.3).
*/
if (transport->hb_allowed) {
if (SCTP_DISPOSITION_NOMEM ==
sctp_sf_heartbeat(ep, asoc, type, arg,
commands))
return SCTP_DISPOSITION_NOMEM;
/* Set transport error counter and association error counter
* when sending heartbeat.
*/
sctp_add_cmd_sf(commands, SCTP_CMD_TRANSPORT_RESET,
SCTP_TRANSPORT(transport));
}
sctp_add_cmd_sf(commands, SCTP_CMD_HB_TIMERS_UPDATE,
SCTP_TRANSPORT(transport));
return SCTP_DISPOSITION_CONSUME;
nomem:
return SCTP_DISPOSITION_NOMEM;
}
/*
......@@ -3656,6 +3672,39 @@ sctp_disposition_t sctp_sf_shutdown_ack_sent_prm_abort(
return sctp_sf_shutdown_sent_prm_abort(ep, asoc, type, arg, commands);
}
/*
* Process the REQUESTHEARTBEAT primitive
*
* 10.1 ULP-to-SCTP
* J) Request Heartbeat
*
* Format: REQUESTHEARTBEAT(association id, destination transport address)
*
* -> result
*
* Instructs the local endpoint to perform a HeartBeat on the specified
* destination transport address of the given association. The returned
* result should indicate whether the transmission of the HEARTBEAT
* chunk to the destination address is successful.
*
* Mandatory attributes:
*
* o association id - local handle to the SCTP association
*
* o destination transport address - the transport address of the
* asociation on which a heartbeat should be issued.
*/
sctp_disposition_t sctp_sf_do_prm_requestheartbeat(
const sctp_endpoint_t *ep,
const sctp_association_t *asoc,
const sctp_subtype_t type,
void *arg,
sctp_cmd_seq_t *commands)
{
return sctp_sf_heartbeat(ep, asoc, type, (sctp_transport_t *)arg,
commands);
}
/*
* Ignore the primitive event
*
......
......@@ -39,6 +39,7 @@
* Jon Grimm <jgrimm@us.ibm.com>
* Hui Huang <hui.huang@nokia.com>
* Daisy Chang <daisyc@us.ibm.com>
* Ardelle Fan <ardelle.fan@intel.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
......@@ -706,21 +707,28 @@ chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
/* SCTP_STATE_EMPTY */ \
{.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
/* SCTP_STATE_CLOSED */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
/* SCTP_STATE_COOKIE_WAIT */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_do_prm_requestheartbeat, \
.name = "sctp_sf_do_prm_requestheartbeat"}, \
/* SCTP_STATE_COOKIE_ECHOED */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_do_prm_requestheartbeat, \
.name = "sctp_sf_do_prm_requestheartbeat"}, \
/* SCTP_STATE_ESTABLISHED */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_do_prm_requestheartbeat, \
.name = "sctp_sf_do_prm_requestheartbeat"}, \
/* SCTP_STATE_SHUTDOWN_PENDING */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_do_prm_requestheartbeat, \
.name = "sctp_sf_do_prm_requestheartbeat"}, \
/* SCTP_STATE_SHUTDOWN_SENT */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_do_prm_requestheartbeat, \
.name = "sctp_sf_do_prm_requestheartbeat"}, \
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_do_prm_requestheartbeat, \
.name = "sctp_sf_do_prm_requestheartbeat"}, \
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
{.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
{.fn = sctp_sf_do_prm_requestheartbeat, \
.name = "sctp_sf_do_prm_requestheartbeat"}, \
} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
#define TYPE_SCTP_PRIMITIVE_GETSRTTREPORT { \
......
......@@ -1252,6 +1252,67 @@ static inline int sctp_setsockopt_autoclose(struct sock *sk, char *optval,
return 0;
}
static inline int sctp_setsockopt_set_peer_addr_params(struct sock *sk,
char *optval,
int optlen)
{
struct sctp_paddrparams params;
sctp_association_t *asoc;
sockaddr_storage_t *addr;
sctp_transport_t *trans;
int error;
if (optlen != sizeof(struct sctp_paddrparams))
return -EINVAL;
if (copy_from_user(&params, optval, optlen))
return -EFAULT;
asoc = sctp_id2assoc(sk, params.spp_assoc_id);
if (!asoc)
return -EINVAL;
addr = (sockaddr_storage_t *) &(params.spp_address);
trans = sctp_assoc_lookup_paddr(asoc, addr);
if (!trans)
return -ENOENT;
/* Applications can enable or disable heartbeats for any peer address
* of an association, modify an address's heartbeat interval, force a
* heartbeat to be sent immediately, and adjust the address's maximum
* number of retransmissions sent before an address is considered
* unreachable.
*
* The value of the heartbeat interval, in milliseconds. A value of
* UINT32_MAX (4294967295), when modifying the parameter, specifies
* that a heartbeat should be sent immediately to the peer address,
* and the current interval should remain unchanged.
*/
if (0xffffffff == params.spp_hbinterval) {
error = sctp_primitive_REQUESTHEARTBEAT (asoc, trans);
if (error)
return error;
}
else {
/* The value of the heartbeat interval, in milliseconds. A value of 0,
* when modifying the parameter, specifies that the heartbeat on this
* address should be disabled.
*/
if (params.spp_hbinterval) {
trans->hb_allowed = 1;
trans->hb_interval = params.spp_hbinterval * HZ / 1000;
} else
trans->hb_allowed = 0;
}
/* spp_pathmaxrxt contains the maximum number of retransmissions
* before this address shall be considered unreachable.
*/
trans->error_threshold = params.spp_pathmaxrxt;
return 0;
}
/* API 6.2 setsockopt(), getsockopt()
*
* Applications use setsockopt() and getsockopt() to set or retrieve
......@@ -1342,6 +1403,11 @@ SCTP_STATIC int sctp_setsockopt(struct sock *sk, int level, int optname,
retval = sctp_setsockopt_autoclose(sk, optval, optlen);
break;
case SCTP_SET_PEER_ADDR_PARAMS:
retval = sctp_setsockopt_set_peer_addr_params(sk, optval,
optlen);
break;
default:
retval = -ENOPROTOOPT;
break;
......@@ -1503,28 +1569,26 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
if (len != sizeof(status)) {
retval = -EINVAL;
goto out_nounlock;
goto out;
}
if (copy_from_user(&status, optval, sizeof(status))) {
retval = -EFAULT;
goto out_nounlock;
goto out;
}
sctp_lock_sock(sk);
associd = status.sstat_assoc_id;
if ((SCTP_SOCKET_UDP_HIGH_BANDWIDTH != sctp_sk(sk)->type) && associd) {
assoc = sctp_id2assoc(sk, associd);
if (!assoc) {
retval = -EINVAL;
goto out_unlock;
goto out;
}
} else {
ep = sctp_sk(sk)->ep;
if (list_empty(&ep->asocs)) {
retval = -EINVAL;
goto out_unlock;
goto out;
}
assoc = list_entry(ep->asocs.next, sctp_association_t, asocs);
......@@ -1543,7 +1607,7 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
status.sstat_primary.spinfo_assoc_id = sctp_assoc2id(transport->asoc);
memcpy(&status.sstat_primary.spinfo_address,
&(transport->ipaddr), sizeof(sockaddr_storage_t));
status.sstat_primary.spinfo_state = transport->state.active;
status.sstat_primary.spinfo_state = transport->active;
status.sstat_primary.spinfo_cwnd = transport->cwnd;
status.sstat_primary.spinfo_srtt = transport->srtt;
status.sstat_primary.spinfo_rto = transport->rto;
......@@ -1551,7 +1615,7 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
if (put_user(len, optlen)) {
retval = -EFAULT;
goto out_unlock;
goto out;
}
SCTP_DEBUG_PRINTK("sctp_getsockopt_sctp_status(%d): %d %d %p\n",
......@@ -1560,13 +1624,10 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
if (copy_to_user(optval, &status, len)) {
retval = -EFAULT;
goto out_unlock;
goto out;
}
out_unlock:
sctp_release_sock(sk);
out_nounlock:
out:
return (retval);
}
......@@ -1684,25 +1745,23 @@ static inline int sctp_getsockopt_peeloff(struct sock *sk, int len, char *optval
if (copy_from_user(&peeloff, optval, len))
return -EFAULT;
sctp_lock_sock(sk);
assoc = sctp_id2assoc(sk, peeloff.associd);
if (NULL == assoc) {
retval = -EINVAL;
goto out_unlock;
goto out;
}
SCTP_DEBUG_PRINTK("%s: sk: %p assoc: %p\n", __FUNCTION__, sk, assoc);
retval = sctp_do_peeloff(assoc, &newsock);
if (retval < 0)
goto out_unlock;
goto out;
/* Map the socket to an unused fd that can be returned to the user. */
retval = sock_map_fd(newsock);
if (retval < 0) {
sock_release(newsock);
goto out_unlock;
goto out;
}
SCTP_DEBUG_PRINTK("%s: sk: %p assoc: %p newsk: %p sd: %d\n",
......@@ -1713,11 +1772,54 @@ static inline int sctp_getsockopt_peeloff(struct sock *sk, int len, char *optval
if (copy_to_user(optval, &peeloff, len))
retval = -EFAULT;
out_unlock:
sctp_release_sock(sk);
out:
return retval;
}
static inline int sctp_getsockopt_get_peer_addr_params(struct sock *sk,
int len, char *optval, int *optlen)
{
struct sctp_paddrparams params;
sctp_association_t *asoc;
sockaddr_storage_t *addr;
sctp_transport_t *trans;
if (len != sizeof(struct sctp_paddrparams))
return -EINVAL;
if (copy_from_user(&params, optval, *optlen))
return -EFAULT;
asoc = sctp_id2assoc(sk, params.spp_assoc_id);
if (!asoc)
return -EINVAL;
addr = (sockaddr_storage_t *) &(params.spp_address);
trans = sctp_assoc_lookup_paddr(asoc, addr);
if (!trans)
return -ENOENT;
/* The value of the heartbeat interval, in milliseconds. A value of 0,
* when modifying the parameter, specifies that the heartbeat on this
* address should be disabled.
*/
if (!trans->hb_allowed)
params.spp_hbinterval = 0;
else
params.spp_hbinterval = trans->hb_interval * 1000 / HZ;
/* spp_pathmaxrxt contains the maximum number of retransmissions
* before this address shall be considered unreachable.
*/
params.spp_pathmaxrxt = trans->error_threshold;
if (copy_to_user(optval, &params, len))
return -EFAULT;
*optlen = len;
return 0;
}
SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
char *optval, int *optlen)
{
......@@ -1748,6 +1850,8 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
if (get_user(len, optlen))
return -EFAULT;
sctp_lock_sock(sk);
switch (optname) {
case SCTP_STATUS:
retval = sctp_getsockopt_sctp_status(sk, len, optval, optlen);
......@@ -1770,11 +1874,17 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
retval = sctp_getsockopt_peeloff(sk, len, optval, optlen);
break;
case SCTP_GET_PEER_ADDR_PARAMS:
retval = sctp_getsockopt_get_peer_addr_params(sk, len, optval,
optlen);
break;
default:
retval = -ENOPROTOOPT;
break;
};
sctp_release_sock(sk);
return retval;
}
......
......@@ -104,8 +104,8 @@ sctp_transport_t *sctp_transport_init(sctp_transport_t *peer,
peer->last_time_used = jiffies;
peer->last_time_ecne_reduced = jiffies;
peer->state.active = 1;
peer->state.hb_allowed = 0;
peer->active = 1;
peer->hb_allowed = 0;
/* Initialize the default path max_retrans. */
peer->max_retrans = proto->max_retrans_path;
......
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