Commit c2052b27 authored by Sridhar Samudrala's avatar Sridhar Samudrala

Merge us.ibm.com:/home/sridhar/BK/lksctp-2.5.work

into us.ibm.com:/home/sridhar/BK/lksctp-2.5.69
parents 5226929c a7b3475f
......@@ -485,6 +485,11 @@ struct sctp_paddrinfo {
__u32 spinfo_mtu;
};
/* Peer addresses's state. */
enum sctp_spinfo_state {
SCTP_INACTIVE,
SCTP_ACTIVE,
};
/*
* 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO)
......
......@@ -548,12 +548,12 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
/* Record the transition on the transport. */
switch (command) {
case SCTP_TRANSPORT_UP:
transport->active = 1;
transport->active = SCTP_ACTIVE;
spc_state = ADDRESS_AVAILABLE;
break;
case SCTP_TRANSPORT_DOWN:
transport->active = 0;
transport->active = SCTP_INACTIVE;
spc_state = ADDRESS_UNREACHABLE;
break;
......
......@@ -1365,6 +1365,13 @@ SCTP_STATIC int sctp_recvmsg(struct kiocb *iocb, struct sock *sk,
return err;
}
/* 7.1.12 Enable/Disable message fragmentation (SCTP_DISABLE_FRAGMENTS)
*
* This option is a on/off flag. If enabled no SCTP message
* fragmentation will be performed. Instead if a message being sent
* exceeds the current PMTU size, the message will NOT be sent and
* instead a error will be indicated to the user.
*/
static int sctp_setsockopt_disable_fragments(struct sock *sk,
char *optval, int optlen)
{
......@@ -1391,6 +1398,17 @@ static int sctp_setsockopt_events(struct sock *sk, char *optval,
return 0;
}
/* 7.1.8 Automatic Close of associations (SCTP_AUTOCLOSE)
*
* This socket option is applicable to the UDP-style socket only. When
* set it will cause associations that are idle for more than the
* specified number of seconds to automatically close. An association
* being idle is defined an association that has NOT sent or received
* user data. The special value of '0' indicates that no automatic
* close of any associations should be performed. The option expects an
* integer defining the number of seconds of idle time before an
* association is closed.
*/
static int sctp_setsockopt_autoclose(struct sock *sk, char *optval,
int optlen)
{
......@@ -1408,6 +1426,37 @@ static int sctp_setsockopt_autoclose(struct sock *sk, char *optval,
return 0;
}
/* 7.1.13 Peer Address Parameters (SCTP_SET_PEER_ADDR_PARAMS)
*
* 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 following structure is used to access and modify an
* address's parameters:
*
* struct sctp_paddrparams {
* sctp_assoc_t spp_assoc_id;
* struct sockaddr_storage spp_address;
* uint32_t spp_hbinterval;
* uint16_t spp_pathmaxrxt;
* };
*
* spp_assoc_id - (UDP style socket) This is filled in the application,
* and identifies the association for this query.
* spp_address - This specifies which address is of interest.
* spp_hbinterval - This contains 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. 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.
* spp_pathmaxrxt - This contains the maximum number of
* retransmissions before this address shall be
* considered unreachable.
*/
static int sctp_setsockopt_peer_addr_params(struct sock *sk,
char *optval, int optlen)
{
......@@ -1460,6 +1509,17 @@ static int sctp_setsockopt_peer_addr_params(struct sock *sk,
return 0;
}
/* 7.1.3 Initialization Parameters (SCTP_INITMSG)
*
* Applications can specify protocol parameters for the default association
* initialization. The option name argument to setsockopt() and getsockopt()
* is SCTP_INITMSG.
*
* Setting initialization parameters is effective only on an unconnected
* socket (for UDP-style sockets only future associations are effected
* by the change). With TCP-style sockets, this option is inherited by
* sockets derived from a listener socket.
*/
static int sctp_setsockopt_initmsg(struct sock *sk, char *optval, int optlen)
{
if (optlen != sizeof(struct sctp_initmsg))
......@@ -1470,7 +1530,7 @@ static int sctp_setsockopt_initmsg(struct sock *sk, char *optval, int optlen)
}
/*
* 7.1.15 Set default send parameters (SET_DEFAULT_SEND_PARAM)
* 7.1.14 Set default send parameters (SET_DEFAULT_SEND_PARAM)
*
* Applications that wish to use the sendto() system call may wish to
* specify a default set of parameters that would normally be supplied
......@@ -2160,6 +2220,64 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, char *optval,
return (retval);
}
/* 7.2.2 Peer Address Information (SCTP_GET_PEER_ADDR_INFO)
*
* Applications can retrieve information about a specific peer address
* of an association, including its reachability state, congestion
* window, and retransmission timer values. This information is
* read-only.
*/
static int sctp_getsockopt_peer_addr_info(struct sock *sk, int len,
char *optval, int *optlen)
{
struct sctp_paddrinfo pinfo;
struct sctp_transport *transport;
int retval = 0;
if (len != sizeof(pinfo)) {
retval = -EINVAL;
goto out;
}
if (copy_from_user(&pinfo, optval, sizeof(pinfo))) {
retval = -EFAULT;
goto out;
}
transport = sctp_addr_id2transport(sk, &pinfo.spinfo_address,
pinfo.spinfo_assoc_id);
if (!transport)
return -EINVAL;
pinfo.spinfo_assoc_id = sctp_assoc2id(transport->asoc);
pinfo.spinfo_state = transport->active;
pinfo.spinfo_cwnd = transport->cwnd;
pinfo.spinfo_srtt = transport->srtt;
pinfo.spinfo_rto = transport->rto;
pinfo.spinfo_mtu = transport->pmtu;
if (put_user(len, optlen)) {
retval = -EFAULT;
goto out;
}
if (copy_to_user(optval, &pinfo, len)) {
retval = -EFAULT;
goto out;
}
out:
return (retval);
}
/* 7.1.12 Enable/Disable message fragmentation (SCTP_DISABLE_FRAGMENTS)
*
* This option is a on/off flag. If enabled no SCTP message
* fragmentation will be performed. Instead if a message being sent
* exceeds the current PMTU size, the message will NOT be sent and
* instead a error will be indicated to the user.
*/
static int sctp_getsockopt_disable_fragments(struct sock *sk, int len,
char *optval, int *optlen)
{
......@@ -2177,6 +2295,11 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len,
return 0;
}
/* 7.1.15 Set notification and ancillary events (SCTP_SET_EVENTS)
*
* This socket option is used to specify various notifications and
* ancillary data the user wishes to receive.
*/
static int sctp_getsockopt_set_events(struct sock *sk, int len, char *optval, int *optlen)
{
if (len != sizeof(struct sctp_event_subscribe))
......@@ -2186,6 +2309,17 @@ static int sctp_getsockopt_set_events(struct sock *sk, int len, char *optval, in
return 0;
}
/* 7.1.8 Automatic Close of associations (SCTP_AUTOCLOSE)
*
* This socket option is applicable to the UDP-style socket only. When
* set it will cause associations that are idle for more than the
* specified number of seconds to automatically close. An association
* being idle is defined an association that has NOT sent or received
* user data. The special value of '0' indicates that no automatic
* close of any associations should be performed. The option expects an
* integer defining the number of seconds of idle time before an
* association is closed.
*/
static int sctp_getsockopt_autoclose(struct sock *sk, int len, char *optval, int *optlen)
{
/* Applicable to UDP-style socket only */
......@@ -2269,6 +2403,37 @@ static int sctp_getsockopt_peeloff(struct sock *sk, int len, char *optval, int *
return retval;
}
/* 7.1.13 Peer Address Parameters (SCTP_SET_PEER_ADDR_PARAMS)
*
* 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 following structure is used to access and modify an
* address's parameters:
*
* struct sctp_paddrparams {
* sctp_assoc_t spp_assoc_id;
* struct sockaddr_storage spp_address;
* uint32_t spp_hbinterval;
* uint16_t spp_pathmaxrxt;
* };
*
* spp_assoc_id - (UDP style socket) This is filled in the application,
* and identifies the association for this query.
* spp_address - This specifies which address is of interest.
* spp_hbinterval - This contains 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. 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.
* spp_pathmaxrxt - This contains the maximum number of
* retransmissions before this address shall be
* considered unreachable.
*/
static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
char *optval, int *optlen)
{
......@@ -2308,6 +2473,17 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
return 0;
}
/* 7.1.3 Initialization Parameters (SCTP_INITMSG)
*
* Applications can specify protocol parameters for the default association
* initialization. The option name argument to setsockopt() and getsockopt()
* is SCTP_INITMSG.
*
* Setting initialization parameters is effective only on an unconnected
* socket (for UDP-style sockets only future associations are effected
* by the change). With TCP-style sockets, this option is inherited by
* sockets derived from a listener socket.
*/
static int sctp_getsockopt_initmsg(struct sock *sk, int len, char *optval, int *optlen)
{
if (len != sizeof(struct sctp_initmsg))
......@@ -2513,7 +2689,7 @@ static int sctp_getsockopt_peer_prim(struct sock *sk, int len,
/*
*
* 7.1.15 Set default send parameters (SET_DEFAULT_SEND_PARAM)
* 7.1.14 Set default send parameters (SET_DEFAULT_SEND_PARAM)
*
* Applications that wish to use the sendto() system call may wish to
* specify a default set of parameters that would normally be supplied
......@@ -2729,6 +2905,10 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
case SCTP_MAXSEG:
retval = sctp_getsockopt_maxseg(sk, len, optval, optlen);
break;
case SCTP_GET_PEER_ADDR_INFO:
retval = sctp_getsockopt_peer_addr_info(sk, len, optval,
optlen);
break;
default:
retval = -ENOPROTOOPT;
break;
......
......@@ -108,7 +108,7 @@ struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
peer->last_time_used = jiffies;
peer->last_time_ecne_reduced = jiffies;
peer->active = 1;
peer->active = SCTP_ACTIVE;
peer->hb_allowed = 0;
/* Initialize the default path max_retrans. */
......
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