struct sctp_association *, sctp_socket_type_t);
static char *sctp_hmac_alg = SCTP_COOKIE_HMAC_ALG;
-extern kmem_cache_t *sctp_bucket_cachep;
+extern struct kmem_cache *sctp_bucket_cachep;
/* Get the sndbuf space available at the time on the association. */
static inline int sctp_wspace(struct sctp_association *asoc)
/* ADDIP Section 4.1.1 Congestion Control of ASCONF Chunks
*
- * R1) One and only one ASCONF Chunk MAY be in transit and unacknowledged
+ * R1) One and only one ASCONF Chunk MAY be in transit and unacknowledged
* at any one time. If a sender, after sending an ASCONF chunk, decides
- * it needs to transfer another ASCONF Chunk, it MUST wait until the
+ * it needs to transfer another ASCONF Chunk, it MUST wait until the
* ASCONF-ACK Chunk returns from the previous ASCONF Chunk before sending a
- * subsequent ASCONF. Note this restriction binds each side, so at any
- * time two ASCONF may be in-transit on any given association (one sent
+ * subsequent ASCONF. Note this restriction binds each side, so at any
+ * time two ASCONF may be in-transit on any given association (one sent
* from each endpoint).
*/
static int sctp_send_asconf(struct sctp_association *asoc,
/* If there is an outstanding ASCONF chunk, queue it for later
* transmission.
- */
+ */
if (asoc->addip_last_asconf) {
list_add_tail(&chunk->list, &asoc->addip_chunk_list);
- goto out;
+ goto out;
}
/* Hold the chunk until an ASCONF_ACK is received. */
goto err_bindx_add;
}
- retval = sctp_do_bind(sk, (union sctp_addr *)sa_addr,
+ retval = sctp_do_bind(sk, (union sctp_addr *)sa_addr,
af->sockaddr_len);
addr_buf += af->sockaddr_len;
* associations that are part of the endpoint indicating that a list of local
* addresses are added to the endpoint.
*
- * If any of the addresses is already in the bind address list of the
+ * If any of the addresses is already in the bind address list of the
* association, we do not send the chunk for that association. But it will not
* affect other associations.
*
* Only sctp_setsockopt_bindx() is supposed to call this function.
*/
-static int sctp_send_asconf_add_ip(struct sock *sk,
+static int sctp_send_asconf_add_ip(struct sock *sk,
struct sockaddr *addrs,
int addrcnt)
{
continue;
/* Check if any address in the packed array of addresses is
- * in the bind address list of the association. If so,
- * do not send the asconf chunk to its peer, but continue with
+ * in the bind address list of the association. If so,
+ * do not send the asconf chunk to its peer, but continue with
* other associations.
*/
addr_buf = addrs;
retval = -EINVAL;
goto err_bindx_rem;
}
+
+ if (!af->addr_valid(sa_addr, sp, NULL)) {
+ retval = -EADDRNOTAVAIL;
+ goto err_bindx_rem;
+ }
+
if (sa_addr->v4.sin_port != htons(bp->port)) {
retval = -EINVAL;
goto err_bindx_rem;
* the associations that are part of the endpoint indicating that a list of
* local addresses are removed from the endpoint.
*
- * If any of the addresses is already in the bind address list of the
+ * If any of the addresses is already in the bind address list of the
* association, we do not send the chunk for that association. But it will not
* affect other associations.
*
continue;
/* Check if any address in the packed array of addresses is
- * not present in the bind address list of the association.
+ * not present in the bind address list of the association.
* If so, do not send the asconf chunk to its peer, but
* continue with other associations.
*/
return -EFAULT;
}
- /* Walk through the addrs buffer and count the number of addresses. */
+ /* Walk through the addrs buffer and count the number of addresses. */
addr_buf = kaddrs;
while (walk_size < addrs_size) {
sa_addr = (struct sockaddr *)addr_buf;
/* If the address family is not supported or if this address
* causes the address buffer to overflow return EINVAL.
- */
+ */
if (!af || (walk_size + af->sockaddr_len) > addrs_size) {
kfree(kaddrs);
return -EINVAL;
default:
err = -EINVAL;
break;
- };
+ }
out:
kfree(kaddrs);
int walk_size = 0;
union sctp_addr *sa_addr;
void *addr_buf;
+ unsigned short port;
sp = sctp_sk(sk);
ep = sp->ep;
while (walk_size < addrs_size) {
sa_addr = (union sctp_addr *)addr_buf;
af = sctp_get_af_specific(sa_addr->sa.sa_family);
+ port = ntohs(sa_addr->v4.sin_port);
/* If the address family is not supported or if this address
* causes the address buffer to overflow return EINVAL.
if (err)
goto out_free;
+ /* Make sure the destination port is correctly set
+ * in all addresses.
+ */
+ if (asoc && asoc->peer.port && asoc->peer.port != port)
+ goto out_free;
+
memcpy(&to, sa_addr, af->sockaddr_len);
/* Check if there already is a matching association on the
}
} else {
/*
- * If an unprivileged user inherits a 1-many
- * style socket with open associations on a
- * privileged port, it MAY be permitted to
- * accept new associations, but it SHOULD NOT
+ * If an unprivileged user inherits a 1-many
+ * style socket with open associations on a
+ * privileged port, it MAY be permitted to
+ * accept new associations, but it SHOULD NOT
* be permitted to open new associations.
*/
if (ep->base.bind_addr.port < PROT_SOCK &&
out_free:
SCTP_DEBUG_PRINTK("About to exit __sctp_connect() free asoc: %p"
- " kaddrs: %p err: %d\n",
- asoc, kaddrs, err);
+ " kaddrs: %p err: %d\n",
+ asoc, kaddrs, err);
if (asoc)
sctp_association_free(asoc);
return err;
* length messages when SCTP_EOF|SCTP_ABORT is not set.
* If SCTP_ABORT is set, the message length could be non zero with
* the msg_iov set to the user abort reason.
- */
+ */
if (((sinfo_flags & SCTP_EOF) && (msg_len > 0)) ||
(!(sinfo_flags & (SCTP_EOF|SCTP_ABORT)) && (msg_len == 0))) {
err = -EINVAL;
= sinit->sinit_max_attempts;
}
if (sinit->sinit_max_init_timeo) {
- asoc->max_init_timeo =
+ asoc->max_init_timeo =
msecs_to_jiffies(sinit->sinit_max_init_timeo);
}
}
* SPP_HB_DEMAND - Request a user initiated heartbeat
* to be made immediately.
*
+ * SPP_HB_TIME_IS_ZERO - Specify's that the time for
+ * heartbeat delayis to be set to the value of 0
+ * milliseconds.
+ *
* SPP_PMTUD_ENABLE - This field will enable PMTU
* discovery upon the specified address. Note that
* if the address feild is empty then all addresses
return error;
}
- if (params->spp_hbinterval) {
- if (trans) {
- trans->hbinterval = msecs_to_jiffies(params->spp_hbinterval);
- } else if (asoc) {
- asoc->hbinterval = msecs_to_jiffies(params->spp_hbinterval);
- } else {
- sp->hbinterval = params->spp_hbinterval;
+ /* Note that unless the spp_flag is set to SPP_HB_ENABLE the value of
+ * this field is ignored. Note also that a value of zero indicates
+ * the current setting should be left unchanged.
+ */
+ if (params->spp_flags & SPP_HB_ENABLE) {
+
+ /* Re-zero the interval if the SPP_HB_TIME_IS_ZERO is
+ * set. This lets us use 0 value when this flag
+ * is set.
+ */
+ if (params->spp_flags & SPP_HB_TIME_IS_ZERO)
+ params->spp_hbinterval = 0;
+
+ if (params->spp_hbinterval ||
+ (params->spp_flags & SPP_HB_TIME_IS_ZERO)) {
+ if (trans) {
+ trans->hbinterval =
+ msecs_to_jiffies(params->spp_hbinterval);
+ } else if (asoc) {
+ asoc->hbinterval =
+ msecs_to_jiffies(params->spp_hbinterval);
+ } else {
+ sp->hbinterval = params->spp_hbinterval;
+ }
}
}
}
}
- if (params->spp_pathmtu) {
+ /* When Path MTU discovery is disabled the value specified here will
+ * be the "fixed" path mtu (i.e. the value of the spp_flags field must
+ * include the flag SPP_PMTUD_DISABLE for this field to have any
+ * effect).
+ */
+ if ((params->spp_flags & SPP_PMTUD_DISABLE) && params->spp_pathmtu) {
if (trans) {
trans->pathmtu = params->spp_pathmtu;
sctp_assoc_sync_pmtu(asoc);
}
}
- if (params->spp_sackdelay) {
+ /* Note that unless the spp_flag is set to SPP_SACKDELAY_ENABLE the
+ * value of this field is ignored. Note also that a value of zero
+ * indicates the current setting should be left unchanged.
+ */
+ if ((params->spp_flags & SPP_SACKDELAY_ENABLE) && params->spp_sackdelay) {
if (trans) {
trans->sackdelay =
msecs_to_jiffies(params->spp_sackdelay);
}
}
- if (params->spp_pathmaxrxt) {
+ /* Note that unless the spp_flag is set to SPP_PMTUD_ENABLE the value
+ * of this field is ignored. Note also that a value of zero
+ * indicates the current setting should be left unchanged.
+ */
+ if ((params->spp_flags & SPP_PMTUD_ENABLE) && params->spp_pathmaxrxt) {
if (trans) {
trans->pathmaxrxt = params->spp_pathmaxrxt;
} else if (asoc) {
return 0;
}
-/* 7.1.24. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
+/* 7.1.23. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
*
* This options will get or set the delayed ack timer. The time is set
* in milliseconds. If the assoc_id is 0, then this sets or gets the
/* Get association, if assoc_id != 0 and the socket is a one
* to many style socket, and an association was not found, then
* the id was invalid.
- */
+ */
asoc = sctp_id2assoc(sk, params.assoc_id);
if (!asoc && params.assoc_id && sctp_style(sk, UDP))
return -EINVAL;
if (asoc) {
asoc->sackdelay =
msecs_to_jiffies(params.assoc_value);
- asoc->param_flags =
+ asoc->param_flags =
(asoc->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_ENABLE;
} else {
sp->sackdelay = params.assoc_value;
- sp->param_flags =
+ sp->param_flags =
(sp->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_ENABLE;
}
} else {
if (asoc) {
- asoc->param_flags =
+ asoc->param_flags =
(asoc->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_DISABLE;
} else {
- sp->param_flags =
+ sp->param_flags =
(sp->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_DISABLE;
}
if (params.assoc_value) {
trans->sackdelay =
msecs_to_jiffies(params.assoc_value);
- trans->param_flags =
+ trans->param_flags =
(trans->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_ENABLE;
} else {
- trans->param_flags =
+ trans->param_flags =
(trans->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_DISABLE;
}
}
}
-
+
return 0;
}
return -EFAULT;
if (sinit.sinit_num_ostreams)
- sp->initmsg.sinit_num_ostreams = sinit.sinit_num_ostreams;
+ sp->initmsg.sinit_num_ostreams = sinit.sinit_num_ostreams;
if (sinit.sinit_max_instreams)
- sp->initmsg.sinit_max_instreams = sinit.sinit_max_instreams;
+ sp->initmsg.sinit_max_instreams = sinit.sinit_max_instreams;
if (sinit.sinit_max_attempts)
- sp->initmsg.sinit_max_attempts = sinit.sinit_max_attempts;
+ sp->initmsg.sinit_max_attempts = sinit.sinit_max_attempts;
if (sinit.sinit_max_init_timeo)
- sp->initmsg.sinit_max_init_timeo = sinit.sinit_max_init_timeo;
+ sp->initmsg.sinit_max_init_timeo = sinit.sinit_max_init_timeo;
return 0;
}
if (asoc) {
if (rtoinfo.srto_initial != 0)
- asoc->rto_initial =
+ asoc->rto_initial =
msecs_to_jiffies(rtoinfo.srto_initial);
if (rtoinfo.srto_max != 0)
asoc->rto_max = msecs_to_jiffies(rtoinfo.srto_max);
*
* 7.1.2 SCTP_ASSOCINFO
*
- * This option is used to tune the the maximum retransmission attempts
+ * This option is used to tune the maximum retransmission attempts
* of the association.
* Returns an error if the new association retransmission value is
* greater than the sum of the retransmission value of the peer.
/* Update the frag_point of the existing associations. */
list_for_each(pos, &(sp->ep->asocs)) {
asoc = list_entry(pos, struct sctp_association, asocs);
- asoc->frag_point = sctp_frag_point(sp, asoc->pathmtu);
+ asoc->frag_point = sctp_frag_point(sp, asoc->pathmtu);
}
return 0;
return -EFAULT;
asoc = sctp_id2assoc(sk, prim.sspp_assoc_id);
- if (!asoc)
+ if (!asoc)
return -EINVAL;
if (!asoc->peer.asconf_capable)
return err;
}
-static int sctp_setsockopt_adaption_layer(struct sock *sk, char __user *optval,
+static int sctp_setsockopt_adaptation_layer(struct sock *sk, char __user *optval,
int optlen)
{
- struct sctp_setadaption adaption;
+ struct sctp_setadaptation adaptation;
+
+ if (optlen != sizeof(struct sctp_setadaptation))
+ return -EINVAL;
+ if (copy_from_user(&adaptation, optval, optlen))
+ return -EFAULT;
+
+ sctp_sk(sk)->adaptation_ind = adaptation.ssb_adaptation_ind;
+
+ return 0;
+}
+
+/*
+ * 7.1.29. Set or Get the default context (SCTP_CONTEXT)
+ *
+ * The context field in the sctp_sndrcvinfo structure is normally only
+ * used when a failed message is retrieved holding the value that was
+ * sent down on the actual send call. This option allows the setting of
+ * a default context on an association basis that will be received on
+ * reading messages from the peer. This is especially helpful in the
+ * one-2-many model for an application to keep some reference to an
+ * internal state machine that is processing messages on the
+ * association. Note that the setting of this value only effects
+ * received messages from the peer and does not effect the value that is
+ * saved with outbound messages.
+ */
+static int sctp_setsockopt_context(struct sock *sk, char __user *optval,
+ int optlen)
+{
+ struct sctp_assoc_value params;
+ struct sctp_sock *sp;
+ struct sctp_association *asoc;
+
+ if (optlen != sizeof(struct sctp_assoc_value))
+ return -EINVAL;
+ if (copy_from_user(¶ms, optval, optlen))
+ return -EFAULT;
+
+ sp = sctp_sk(sk);
+
+ if (params.assoc_id != 0) {
+ asoc = sctp_id2assoc(sk, params.assoc_id);
+ if (!asoc)
+ return -EINVAL;
+ asoc->default_rcv_context = params.assoc_value;
+ } else {
+ sp->default_rcv_context = params.assoc_value;
+ }
+
+ return 0;
+}
+
+/*
+ * 7.1.24. Get or set fragmented interleave (SCTP_FRAGMENT_INTERLEAVE)
+ *
+ * This options will at a minimum specify if the implementation is doing
+ * fragmented interleave. Fragmented interleave, for a one to many
+ * socket, is when subsequent calls to receive a message may return
+ * parts of messages from different associations. Some implementations
+ * may allow you to turn this value on or off. If so, when turned off,
+ * no fragment interleave will occur (which will cause a head of line
+ * blocking amongst multiple associations sharing the same one to many
+ * socket). When this option is turned on, then each receive call may
+ * come from a different association (thus the user must receive data
+ * with the extended calls (e.g. sctp_recvmsg) to keep track of which
+ * association each receive belongs to.
+ *
+ * This option takes a boolean value. A non-zero value indicates that
+ * fragmented interleave is on. A value of zero indicates that
+ * fragmented interleave is off.
+ *
+ * Note that it is important that an implementation that allows this
+ * option to be turned on, have it off by default. Otherwise an unaware
+ * application using the one to many model may become confused and act
+ * incorrectly.
+ */
+static int sctp_setsockopt_fragment_interleave(struct sock *sk,
+ char __user *optval,
+ int optlen)
+{
+ int val;
+
+ if (optlen != sizeof(int))
+ return -EINVAL;
+ if (get_user(val, (int __user *)optval))
+ return -EFAULT;
+
+ sctp_sk(sk)->frag_interleave = (val == 0) ? 0 : 1;
+
+ return 0;
+}
+
+/*
+ * 7.1.25. Set or Get the sctp partial delivery point
+ * (SCTP_PARTIAL_DELIVERY_POINT)
+ * This option will set or get the SCTP partial delivery point. This
+ * point is the size of a message where the partial delivery API will be
+ * invoked to help free up rwnd space for the peer. Setting this to a
+ * lower value will cause partial delivery's to happen more often. The
+ * calls argument is an integer that sets or gets the partial delivery
+ * point.
+ */
+static int sctp_setsockopt_partial_delivery_point(struct sock *sk,
+ char __user *optval,
+ int optlen)
+{
+ u32 val;
- if (optlen != sizeof(struct sctp_setadaption))
+ if (optlen != sizeof(u32))
return -EINVAL;
- if (copy_from_user(&adaption, optval, optlen))
+ if (get_user(val, (int __user *)optval))
return -EFAULT;
- sctp_sk(sk)->adaption_ind = adaption.ssb_adaption_ind;
+ sctp_sk(sk)->pd_point = val;
+
+ return 0; /* is this the right error code? */
+}
+
+/*
+ * 7.1.28. Set or Get the maximum burst (SCTP_MAX_BURST)
+ *
+ * This option will allow a user to change the maximum burst of packets
+ * that can be emitted by this association. Note that the default value
+ * is 4, and some implementations may restrict this setting so that it
+ * can only be lowered.
+ *
+ * NOTE: This text doesn't seem right. Do this on a socket basis with
+ * future associations inheriting the socket value.
+ */
+static int sctp_setsockopt_maxburst(struct sock *sk,
+ char __user *optval,
+ int optlen)
+{
+ int val;
+
+ if (optlen != sizeof(int))
+ return -EINVAL;
+ if (get_user(val, (int __user *)optval))
+ return -EFAULT;
+
+ if (val < 0)
+ return -EINVAL;
+
+ sctp_sk(sk)->max_burst = val;
return 0;
}
case SCTP_DELAYED_ACK_TIME:
retval = sctp_setsockopt_delayed_ack_time(sk, optval, optlen);
break;
+ case SCTP_PARTIAL_DELIVERY_POINT:
+ retval = sctp_setsockopt_partial_delivery_point(sk, optval, optlen);
+ break;
case SCTP_INITMSG:
retval = sctp_setsockopt_initmsg(sk, optval, optlen);
case SCTP_MAXSEG:
retval = sctp_setsockopt_maxseg(sk, optval, optlen);
break;
- case SCTP_ADAPTION_LAYER:
- retval = sctp_setsockopt_adaption_layer(sk, optval, optlen);
+ case SCTP_ADAPTATION_LAYER:
+ retval = sctp_setsockopt_adaptation_layer(sk, optval, optlen);
+ break;
+ case SCTP_CONTEXT:
+ retval = sctp_setsockopt_context(sk, optval, optlen);
+ break;
+ case SCTP_FRAGMENT_INTERLEAVE:
+ retval = sctp_setsockopt_fragment_interleave(sk, optval, optlen);
+ break;
+ case SCTP_MAX_BURST:
+ retval = sctp_setsockopt_maxburst(sk, optval, optlen);
break;
-
default:
retval = -ENOPROTOOPT;
break;
- };
+ }
sctp_release_sock(sk);
out:
sctp_release_sock(sk);
- *err = error;
+ *err = error;
return newsk;
}
sp->default_context = 0;
sp->default_timetolive = 0;
+ sp->default_rcv_context = 0;
+ sp->max_burst = sctp_max_burst;
+
/* Initialize default setup parameters. These parameters
* can be modified with the SCTP_INITMSG socket option or
* overridden by the SCTP_INIT CMSG.
sp->assocparams.sasoc_cookie_life = sctp_valid_cookie_life;
/* Initialize default event subscriptions. By default, all the
- * options are off.
+ * options are off.
*/
memset(&sp->subscribe, 0, sizeof(struct sctp_event_subscribe));
sp->pathmtu = 0; // allow default discovery
sp->sackdelay = sctp_sack_timeout;
sp->param_flags = SPP_HB_ENABLE |
- SPP_PMTUD_ENABLE |
- SPP_SACKDELAY_ENABLE;
+ SPP_PMTUD_ENABLE |
+ SPP_SACKDELAY_ENABLE;
/* If enabled no SCTP message fragmentation will be performed.
* Configure through SCTP_DISABLE_FRAGMENTS socket option.
/* User specified fragmentation limit. */
sp->user_frag = 0;
- sp->adaption_ind = 0;
+ sp->adaptation_ind = 0;
sp->pf = sctp_get_pf_specific(sk->sk_family);
/* Control variables for partial data delivery. */
- sp->pd_mode = 0;
+ atomic_set(&sp->pd_mode, 0);
skb_queue_head_init(&sp->pd_lobby);
+ sp->frag_interleave = 0;
/* Create a per socket endpoint structure. Even if we
* change the data structure relationships, this may still
return 0;
}
-/* 7.1.24. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
+/* 7.1.23. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
*
* This options will get or set the delayed ack timer. The time is set
* in milliseconds. If the assoc_id is 0, then this sets or gets the
/* Get association, if assoc_id != 0 and the socket is a one
* to many style socket, and an association was not found, then
* the id was invalid.
- */
+ */
asoc = sctp_id2assoc(sk, params.assoc_id);
if (!asoc && params.assoc_id && sctp_style(sk, UDP))
return -EINVAL;
return cnt;
}
-/*
+/*
* Old API for getting list of peer addresses. Does not work for 32-bit
* programs running on a 64-bit kernel
*/
return -EINVAL;
to = optval + offsetof(struct sctp_getaddrs,addrs);
- space_left = len - sizeof(struct sctp_getaddrs) -
+ space_left = len - sizeof(struct sctp_getaddrs) -
offsetof(struct sctp_getaddrs,addrs);
list_for_each(pos, &asoc->peer.transport_addr_list) {
memcpy(&temp, &from->ipaddr, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp, &temp);
addrlen = sctp_get_af_specific(sk->sk_family)->sockaddr_len;
- if(space_left < addrlen)
+ if (space_left < addrlen)
return -ENOMEM;
if (copy_to_user(to, &temp, addrlen))
return -EFAULT;
sctp_assoc_t id;
struct sctp_bind_addr *bp;
struct sctp_association *asoc;
- struct list_head *pos;
+ struct list_head *pos, *temp;
struct sctp_sockaddr_entry *addr;
rwlock_t *addr_lock;
- unsigned long flags;
int cnt = 0;
if (len != sizeof(sctp_assoc_t))
addr = list_entry(bp->address_list.next,
struct sctp_sockaddr_entry, list);
if (sctp_is_any(&addr->a)) {
- sctp_spin_lock_irqsave(&sctp_local_addr_lock, flags);
- list_for_each(pos, &sctp_local_addr_list) {
+ list_for_each_safe(pos, temp, &sctp_local_addr_list) {
addr = list_entry(pos,
struct sctp_sockaddr_entry,
list);
- if ((PF_INET == sk->sk_family) &&
+ if ((PF_INET == sk->sk_family) &&
(AF_INET6 == addr->a.sa.sa_family))
continue;
cnt++;
}
- sctp_spin_unlock_irqrestore(&sctp_local_addr_lock,
- flags);
} else {
cnt = 1;
}
/* Helper function that copies local addresses to user and returns the number
* of addresses copied.
*/
-static int sctp_copy_laddrs_to_user_old(struct sock *sk, __u16 port, int max_addrs,
- void __user *to)
+static int sctp_copy_laddrs_old(struct sock *sk, __u16 port,
+ int max_addrs, void *to,
+ int *bytes_copied)
{
- struct list_head *pos;
+ struct list_head *pos, *next;
struct sctp_sockaddr_entry *addr;
- unsigned long flags;
union sctp_addr temp;
int cnt = 0;
int addrlen;
- sctp_spin_lock_irqsave(&sctp_local_addr_lock, flags);
- list_for_each(pos, &sctp_local_addr_list) {
+ list_for_each_safe(pos, next, &sctp_local_addr_list) {
addr = list_entry(pos, struct sctp_sockaddr_entry, list);
- if ((PF_INET == sk->sk_family) &&
+ if ((PF_INET == sk->sk_family) &&
(AF_INET6 == addr->a.sa.sa_family))
continue;
memcpy(&temp, &addr->a, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sctp_sk(sk),
&temp);
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
- if (copy_to_user(to, &temp, addrlen)) {
- sctp_spin_unlock_irqrestore(&sctp_local_addr_lock,
- flags);
- return -EFAULT;
- }
+ memcpy(to, &temp, addrlen);
+
to += addrlen;
+ *bytes_copied += addrlen;
cnt ++;
if (cnt >= max_addrs) break;
}
- sctp_spin_unlock_irqrestore(&sctp_local_addr_lock, flags);
return cnt;
}
-static int sctp_copy_laddrs_to_user(struct sock *sk, __u16 port,
- void __user **to, size_t space_left)
+static int sctp_copy_laddrs(struct sock *sk, __u16 port, void *to,
+ size_t space_left, int *bytes_copied)
{
- struct list_head *pos;
+ struct list_head *pos, *next;
struct sctp_sockaddr_entry *addr;
- unsigned long flags;
union sctp_addr temp;
int cnt = 0;
int addrlen;
- sctp_spin_lock_irqsave(&sctp_local_addr_lock, flags);
- list_for_each(pos, &sctp_local_addr_list) {
+ list_for_each_safe(pos, next, &sctp_local_addr_list) {
addr = list_entry(pos, struct sctp_sockaddr_entry, list);
- if ((PF_INET == sk->sk_family) &&
+ if ((PF_INET == sk->sk_family) &&
(AF_INET6 == addr->a.sa.sa_family))
continue;
memcpy(&temp, &addr->a, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sctp_sk(sk),
&temp);
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
- if(space_left<addrlen)
+ if (space_left < addrlen)
return -ENOMEM;
- if (copy_to_user(*to, &temp, addrlen)) {
- sctp_spin_unlock_irqrestore(&sctp_local_addr_lock,
- flags);
- return -EFAULT;
- }
- *to += addrlen;
+ memcpy(to, &temp, addrlen);
+
+ to += addrlen;
cnt ++;
space_left -= addrlen;
+ bytes_copied += addrlen;
}
- sctp_spin_unlock_irqrestore(&sctp_local_addr_lock, flags);
return cnt;
}
int addrlen;
rwlock_t *addr_lock;
int err = 0;
+ void *addrs;
+ void *buf;
+ int bytes_copied = 0;
if (len != sizeof(struct sctp_getaddrs_old))
return -EINVAL;
to = getaddrs.addrs;
+ /* Allocate space for a local instance of packed array to hold all
+ * the data. We store addresses here first and then put write them
+ * to the user in one shot.
+ */
+ addrs = kmalloc(sizeof(union sctp_addr) * getaddrs.addr_num,
+ GFP_KERNEL);
+ if (!addrs)
+ return -ENOMEM;
+
sctp_read_lock(addr_lock);
/* If the endpoint is bound to 0.0.0.0 or ::0, get the valid
addr = list_entry(bp->address_list.next,
struct sctp_sockaddr_entry, list);
if (sctp_is_any(&addr->a)) {
- cnt = sctp_copy_laddrs_to_user_old(sk, bp->port,
- getaddrs.addr_num,
- to);
- if (cnt < 0) {
- err = cnt;
- goto unlock;
- }
- goto copy_getaddrs;
+ cnt = sctp_copy_laddrs_old(sk, bp->port,
+ getaddrs.addr_num,
+ addrs, &bytes_copied);
+ goto copy_getaddrs;
}
}
+ buf = addrs;
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;
- if (copy_to_user(to, &temp, addrlen)) {
- err = -EFAULT;
- goto unlock;
- }
- to += addrlen;
+ memcpy(buf, &temp, addrlen);
+ buf += addrlen;
+ bytes_copied += addrlen;
cnt ++;
if (cnt >= getaddrs.addr_num) break;
}
copy_getaddrs:
+ sctp_read_unlock(addr_lock);
+
+ /* copy the entire address list into the user provided space */
+ if (copy_to_user(to, addrs, bytes_copied)) {
+ err = -EFAULT;
+ goto error;
+ }
+
+ /* copy the leading structure back to user */
getaddrs.addr_num = cnt;
if (copy_to_user(optval, &getaddrs, sizeof(struct sctp_getaddrs_old)))
err = -EFAULT;
-unlock:
- sctp_read_unlock(addr_lock);
+error:
+ kfree(addrs);
return err;
}
rwlock_t *addr_lock;
int err = 0;
size_t space_left;
- int bytes_copied;
+ int bytes_copied = 0;
+ void *addrs;
+ void *buf;
if (len <= sizeof(struct sctp_getaddrs))
return -EINVAL;
to = optval + offsetof(struct sctp_getaddrs,addrs);
space_left = len - sizeof(struct sctp_getaddrs) -
offsetof(struct sctp_getaddrs,addrs);
+ addrs = kmalloc(space_left, GFP_KERNEL);
+ if (!addrs)
+ return -ENOMEM;
sctp_read_lock(addr_lock);
addr = list_entry(bp->address_list.next,
struct sctp_sockaddr_entry, list);
if (sctp_is_any(&addr->a)) {
- cnt = sctp_copy_laddrs_to_user(sk, bp->port,
- &to, space_left);
+ cnt = sctp_copy_laddrs(sk, bp->port, addrs,
+ space_left, &bytes_copied);
if (cnt < 0) {
err = cnt;
- goto unlock;
+ goto error;
}
- goto copy_getaddrs;
+ goto copy_getaddrs;
}
}
+ buf = addrs;
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;
- if(space_left < addrlen)
- return -ENOMEM; /*fixme: right error?*/
- if (copy_to_user(to, &temp, addrlen)) {
- err = -EFAULT;
- goto unlock;
+ if (space_left < addrlen) {
+ err = -ENOMEM; /*fixme: right error?*/
+ goto error;
}
- to += addrlen;
+ memcpy(buf, &temp, addrlen);
+ buf += addrlen;
+ bytes_copied += addrlen;
cnt ++;
space_left -= addrlen;
}
copy_getaddrs:
+ sctp_read_unlock(addr_lock);
+
+ if (copy_to_user(to, addrs, bytes_copied)) {
+ err = -EFAULT;
+ goto error;
+ }
if (put_user(cnt, &((struct sctp_getaddrs __user *)optval)->addr_num))
return -EFAULT;
- bytes_copied = ((char __user *)to) - optval;
if (put_user(bytes_copied, optlen))
return -EFAULT;
-unlock:
- sctp_read_unlock(addr_lock);
+error:
+ kfree(addrs);
return err;
}
if (!asoc->peer.primary_path)
return -ENOTCONN;
-
+
memcpy(&prim.ssp_addr, &asoc->peer.primary_path->ipaddr,
asoc->peer.primary_path->af_specific->sockaddr_len);
}
/*
- * 7.1.11 Set Adaption Layer Indicator (SCTP_ADAPTION_LAYER)
+ * 7.1.11 Set Adaptation Layer Indicator (SCTP_ADAPTATION_LAYER)
*
- * Requests that the local endpoint set the specified Adaption Layer
+ * Requests that the local endpoint set the specified Adaptation Layer
* Indication parameter for all future INIT and INIT-ACK exchanges.
*/
-static int sctp_getsockopt_adaption_layer(struct sock *sk, int len,
+static int sctp_getsockopt_adaptation_layer(struct sock *sk, int len,
char __user *optval, int __user *optlen)
{
- struct sctp_setadaption adaption;
+ struct sctp_setadaptation adaptation;
- if (len != sizeof(struct sctp_setadaption))
+ if (len != sizeof(struct sctp_setadaptation))
return -EINVAL;
- adaption.ssb_adaption_ind = sctp_sk(sk)->adaption_ind;
- if (copy_to_user(optval, &adaption, len))
+ adaptation.ssb_adaptation_ind = sctp_sk(sk)->adaptation_ind;
+ if (copy_to_user(optval, &adaptation, len))
return -EFAULT;
return 0;
*
* 7.1.2 SCTP_ASSOCINFO
*
- * This option is used to tune the the maximum retransmission attempts
+ * This option is used to tune the maximum retransmission attempts
* of the association.
* Returns an error if the new association retransmission value is
* greater than the sum of the retransmission value of the peer.
}
/*
+ * 7.1.29. Set or Get the default context (SCTP_CONTEXT)
+ * (chapter and verse is quoted at sctp_setsockopt_context())
+ */
+static int sctp_getsockopt_context(struct sock *sk, int len,
+ char __user *optval, int __user *optlen)
+{
+ struct sctp_assoc_value params;
+ struct sctp_sock *sp;
+ struct sctp_association *asoc;
+
+ if (len != sizeof(struct sctp_assoc_value))
+ return -EINVAL;
+
+ if (copy_from_user(¶ms, optval, len))
+ return -EFAULT;
+
+ sp = sctp_sk(sk);
+
+ if (params.assoc_id != 0) {
+ asoc = sctp_id2assoc(sk, params.assoc_id);
+ if (!asoc)
+ return -EINVAL;
+ params.assoc_value = asoc->default_rcv_context;
+ } else {
+ params.assoc_value = sp->default_rcv_context;
+ }
+
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, ¶ms, len))
+ return -EFAULT;
+
+ return 0;
+}
+
+/*
* 7.1.17 Set the maximum fragrmentation size (SCTP_MAXSEG)
*
* This socket option specifies the maximum size to put in any outgoing
return 0;
}
+/*
+ * 7.1.24. Get or set fragmented interleave (SCTP_FRAGMENT_INTERLEAVE)
+ * (chapter and verse is quoted at sctp_setsockopt_fragment_interleave())
+ */
+static int sctp_getsockopt_fragment_interleave(struct sock *sk, int len,
+ char __user *optval, int __user *optlen)
+{
+ int val;
+
+ if (len < sizeof(int))
+ return -EINVAL;
+
+ len = sizeof(int);
+
+ val = sctp_sk(sk)->frag_interleave;
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+
+ return 0;
+}
+
+/*
+ * 7.1.25. Set or Get the sctp partial delivery point
+ * (chapter and verse is quoted at sctp_setsockopt_partial_delivery_point())
+ */
+static int sctp_getsockopt_partial_delivery_point(struct sock *sk, int len,
+ char __user *optval,
+ int __user *optlen)
+{
+ u32 val;
+
+ if (len < sizeof(u32))
+ return -EINVAL;
+
+ len = sizeof(u32);
+
+ val = sctp_sk(sk)->pd_point;
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+
+ return -ENOTSUPP;
+}
+
+/*
+ * 7.1.28. Set or Get the maximum burst (SCTP_MAX_BURST)
+ * (chapter and verse is quoted at sctp_setsockopt_maxburst())
+ */
+static int sctp_getsockopt_maxburst(struct sock *sk, int len,
+ char __user *optval,
+ int __user *optlen)
+{
+ int val;
+
+ if (len < sizeof(int))
+ return -EINVAL;
+
+ len = sizeof(int);
+
+ val = sctp_sk(sk)->max_burst;
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+
+ return -ENOTSUPP;
+}
+
SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
retval = sctp_getsockopt_peer_addr_info(sk, len, optval,
optlen);
break;
- case SCTP_ADAPTION_LAYER:
- retval = sctp_getsockopt_adaption_layer(sk, len, optval,
+ case SCTP_ADAPTATION_LAYER:
+ retval = sctp_getsockopt_adaptation_layer(sk, len, optval,
optlen);
break;
+ case SCTP_CONTEXT:
+ retval = sctp_getsockopt_context(sk, len, optval, optlen);
+ break;
+ case SCTP_FRAGMENT_INTERLEAVE:
+ retval = sctp_getsockopt_fragment_interleave(sk, len, optval,
+ optlen);
+ break;
+ case SCTP_PARTIAL_DELIVERY_POINT:
+ retval = sctp_getsockopt_partial_delivery_point(sk, len, optval,
+ optlen);
+ break;
+ case SCTP_MAX_BURST:
+ retval = sctp_getsockopt_maxburst(sk, len, optval, optlen);
+ break;
default:
retval = -ENOPROTOOPT;
break;
- };
+ }
sctp_release_sock(sk);
return retval;
struct hlist_node *node;
SCTP_DEBUG_PRINTK("sctp_get_port() found a possible match\n");
- if (pp->fastreuse && sk->sk_reuse)
+ if (pp->fastreuse && sk->sk_reuse &&
+ sk->sk_state != SCTP_SS_LISTENING)
goto success;
/* Run through the list of sockets bound to the port
struct sctp_endpoint *ep2;
ep2 = sctp_sk(sk2)->ep;
- if (reuse && sk2->sk_reuse)
+ if (reuse && sk2->sk_reuse &&
+ sk2->sk_state != SCTP_SS_LISTENING)
continue;
if (sctp_bind_addr_match(&ep2->base.bind_addr, addr,
* if sk->sk_reuse is too (that is, if the caller requested
* SO_REUSEADDR on this socket -sk-).
*/
- if (hlist_empty(&pp->owner))
- pp->fastreuse = sk->sk_reuse ? 1 : 0;
- else if (pp->fastreuse && !sk->sk_reuse)
+ if (hlist_empty(&pp->owner)) {
+ if (sk->sk_reuse && sk->sk_state != SCTP_SS_LISTENING)
+ pp->fastreuse = 1;
+ else
+ pp->fastreuse = 0;
+ } else if (pp->fastreuse &&
+ (!sk->sk_reuse || sk->sk_state == SCTP_SS_LISTENING))
pp->fastreuse = 0;
/* We are set, so fill up all the data in the hash table
* sockets FIXME: Blurry, NPI (ipg).
*/
success:
- inet_sk(sk)->num = snum;
if (!sctp_sk(sk)->bind_hash) {
+ inet_sk(sk)->num = snum;
sk_add_bind_node(sk, &pp->owner);
sctp_sk(sk)->bind_hash = pp;
}
if (!backlog) {
if (sctp_sstate(sk, CLOSED))
return 0;
-
+
sctp_unhash_endpoint(ep);
sk->sk_state = SCTP_SS_CLOSED;
}
/* Return if we are already listening. */
if (sctp_sstate(sk, LISTENING))
return 0;
-
+
/*
* If a bind() or sctp_bindx() is not called prior to a listen()
* call that allows new associations to be accepted, the system
* This is not currently spelled out in the SCTP sockets
* extensions draft, but follows the practice as seen in TCP
* sockets.
+ *
+ * Additionally, turn off fastreuse flag since we are not listening
*/
+ sk->sk_state = SCTP_SS_LISTENING;
if (!ep->base.bind_addr.port) {
if (sctp_autobind(sk))
return -EAGAIN;
- }
- sk->sk_state = SCTP_SS_LISTENING;
+ } else
+ sctp_sk(sk)->bind_hash->fastreuse = 0;
+
sctp_hash_endpoint(ep);
return 0;
}
if (!backlog) {
if (sctp_sstate(sk, CLOSED))
return 0;
-
+
sctp_unhash_endpoint(ep);
sk->sk_state = SCTP_SS_CLOSED;
}
* extensions draft, but follows the practice as seen in TCP
* sockets.
*/
+ sk->sk_state = SCTP_SS_LISTENING;
if (!ep->base.bind_addr.port) {
if (sctp_autobind(sk))
return -EAGAIN;
- }
- sk->sk_state = SCTP_SS_LISTENING;
+ } else
+ sctp_sk(sk)->bind_hash->fastreuse = 0;
+
sk->sk_max_ack_backlog = backlog;
sctp_hash_endpoint(ep);
return 0;
/* Allocate HMAC for generating cookie. */
if (sctp_hmac_alg) {
tfm = crypto_alloc_hash(sctp_hmac_alg, 0, CRYPTO_ALG_ASYNC);
- if (!tfm) {
+ if (IS_ERR(tfm)) {
+ if (net_ratelimit()) {
+ printk(KERN_INFO
+ "SCTP: failed to load transform for %s: %ld\n",
+ sctp_hmac_alg, PTR_ERR(tfm));
+ }
err = -ENOSYS;
goto out;
}
break;
default:
break;
- };
+ }
+
if (err)
goto cleanup;
*/
if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))
return (!list_empty(&sp->ep->asocs)) ?
- (POLLIN | POLLRDNORM) : 0;
+ (POLLIN | POLLRDNORM) : 0;
mask = 0;
{
struct sctp_bind_bucket *pp;
- pp = kmem_cache_alloc(sctp_bucket_cachep, SLAB_ATOMIC);
+ pp = kmem_cache_alloc(sctp_bucket_cachep, GFP_ATOMIC);
SCTP_DBG_OBJCNT_INC(bind_bucket);
if (pp) {
pp->port = snum;
default:
return -EINVAL;
- };
+ }
}
return 0;
}
DEFINE_WAIT(wait);
SCTP_DEBUG_PRINTK("wait_for_sndbuf: asoc=%p, timeo=%ld, msg_len=%zu\n",
- asoc, (long)(*timeo_p), msg_len);
+ asoc, (long)(*timeo_p), msg_len);
/* Increment the association's refcnt. */
sctp_association_hold(asoc);
finish_wait(sk->sk_sleep, &wait);
}
+static void sctp_sock_rfree_frag(struct sk_buff *skb)
+{
+ struct sk_buff *frag;
+
+ if (!skb->data_len)
+ goto done;
+
+ /* Don't forget the fragments. */
+ for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ sctp_sock_rfree_frag(frag);
+
+done:
+ sctp_sock_rfree(skb);
+}
+
+static void sctp_skb_set_owner_r_frag(struct sk_buff *skb, struct sock *sk)
+{
+ struct sk_buff *frag;
+
+ if (!skb->data_len)
+ goto done;
+
+ /* Don't forget the fragments. */
+ for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ sctp_skb_set_owner_r_frag(frag, sk);
+
+done:
+ sctp_skb_set_owner_r(skb, sk);
+}
+
/* Populate the fields of the newsk from the oldsk and migrate the assoc
* and its messages to the newsk.
*/
sctp_skb_for_each(skb, &oldsk->sk_receive_queue, tmp) {
event = sctp_skb2event(skb);
if (event->asoc == assoc) {
- sctp_sock_rfree(skb);
+ sctp_sock_rfree_frag(skb);
__skb_unlink(skb, &oldsk->sk_receive_queue);
__skb_queue_tail(&newsk->sk_receive_queue, skb);
- sctp_skb_set_owner_r(skb, newsk);
+ sctp_skb_set_owner_r_frag(skb, newsk);
}
}
* 3) Peeling off non-partial delivery; move pd_lobby to receive_queue.
*/
skb_queue_head_init(&newsp->pd_lobby);
- sctp_sk(newsk)->pd_mode = assoc->ulpq.pd_mode;
+ atomic_set(&sctp_sk(newsk)->pd_mode, assoc->ulpq.pd_mode);
- if (sctp_sk(oldsk)->pd_mode) {
+ if (atomic_read(&sctp_sk(oldsk)->pd_mode)) {
struct sk_buff_head *queue;
/* Decide which queue to move pd_lobby skbs to. */
sctp_skb_for_each(skb, &oldsp->pd_lobby, tmp) {
event = sctp_skb2event(skb);
if (event->asoc == assoc) {
- sctp_sock_rfree(skb);
+ sctp_sock_rfree_frag(skb);
__skb_unlink(skb, &oldsp->pd_lobby);
__skb_queue_tail(queue, skb);
- sctp_skb_set_owner_r(skb, newsk);
+ sctp_skb_set_owner_r_frag(skb, newsk);
}
}
* delivery to finish.
*/
if (assoc->ulpq.pd_mode)
- sctp_clear_pd(oldsk);
+ sctp_clear_pd(oldsk, NULL);
+
+ }
+
+ sctp_skb_for_each(skb, &assoc->ulpq.reasm, tmp) {
+ sctp_sock_rfree_frag(skb);
+ sctp_skb_set_owner_r_frag(skb, newsk);
+ }
+ sctp_skb_for_each(skb, &assoc->ulpq.lobby, tmp) {
+ sctp_sock_rfree_frag(skb);
+ sctp_skb_set_owner_r_frag(skb, newsk);
}
/* Set the type of socket to indicate that it is peeled off from the
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff