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Diffstat (limited to 'net/sctp/socket.c')
-rw-r--r--net/sctp/socket.c383
1 files changed, 267 insertions, 116 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 0dbcde6758e..79bece16aed 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -116,7 +116,7 @@ static int sctp_memory_pressure;
static atomic_t sctp_memory_allocated;
static atomic_t sctp_sockets_allocated;
-static void sctp_enter_memory_pressure(void)
+static void sctp_enter_memory_pressure(struct sock *sk)
{
sctp_memory_pressure = 1;
}
@@ -308,9 +308,16 @@ static struct sctp_af *sctp_sockaddr_af(struct sctp_sock *opt,
if (len < sizeof (struct sockaddr))
return NULL;
- /* Does this PF support this AF? */
- if (!opt->pf->af_supported(addr->sa.sa_family, opt))
- return NULL;
+ /* V4 mapped address are really of AF_INET family */
+ if (addr->sa.sa_family == AF_INET6 &&
+ ipv6_addr_v4mapped(&addr->v6.sin6_addr)) {
+ if (!opt->pf->af_supported(AF_INET, opt))
+ return NULL;
+ } else {
+ /* Does this PF support this AF? */
+ if (!opt->pf->af_supported(addr->sa.sa_family, opt))
+ return NULL;
+ }
/* If we get this far, af is valid. */
af = sctp_get_af_specific(addr->sa.sa_family);
@@ -370,18 +377,19 @@ SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
if (snum && snum < PROT_SOCK && !capable(CAP_NET_BIND_SERVICE))
return -EACCES;
+ /* See if the address matches any of the addresses we may have
+ * already bound before checking against other endpoints.
+ */
+ if (sctp_bind_addr_match(bp, addr, sp))
+ return -EINVAL;
+
/* Make sure we are allowed to bind here.
* The function sctp_get_port_local() does duplicate address
* detection.
*/
addr->v4.sin_port = htons(snum);
if ((ret = sctp_get_port_local(sk, addr))) {
- if (ret == (long) sk) {
- /* This endpoint has a conflicting address. */
- return -EINVAL;
- } else {
- return -EADDRINUSE;
- }
+ return -EADDRINUSE;
}
/* Refresh ephemeral port. */
@@ -956,7 +964,8 @@ out:
*/
static int __sctp_connect(struct sock* sk,
struct sockaddr *kaddrs,
- int addrs_size)
+ int addrs_size,
+ sctp_assoc_t *assoc_id)
{
struct sctp_sock *sp;
struct sctp_endpoint *ep;
@@ -1111,6 +1120,8 @@ static int __sctp_connect(struct sock* sk,
timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK);
err = sctp_wait_for_connect(asoc, &timeo);
+ if (!err && assoc_id)
+ *assoc_id = asoc->assoc_id;
/* Don't free association on exit. */
asoc = NULL;
@@ -1128,7 +1139,8 @@ out_free:
/* Helper for tunneling sctp_connectx() requests through sctp_setsockopt()
*
* API 8.9
- * int sctp_connectx(int sd, struct sockaddr *addrs, int addrcnt);
+ * int sctp_connectx(int sd, struct sockaddr *addrs, int addrcnt,
+ * sctp_assoc_t *asoc);
*
* If sd is an IPv4 socket, the addresses passed must be IPv4 addresses.
* If the sd is an IPv6 socket, the addresses passed can either be IPv4
@@ -1144,8 +1156,10 @@ out_free:
* representation is termed a "packed array" of addresses). The caller
* specifies the number of addresses in the array with addrcnt.
*
- * On success, sctp_connectx() returns 0. On failure, sctp_connectx() returns
- * -1, and sets errno to the appropriate error code.
+ * On success, sctp_connectx() returns 0. It also sets the assoc_id to
+ * the association id of the new association. On failure, sctp_connectx()
+ * returns -1, and sets errno to the appropriate error code. The assoc_id
+ * is not touched by the kernel.
*
* For SCTP, the port given in each socket address must be the same, or
* sctp_connectx() will fail, setting errno to EINVAL.
@@ -1182,11 +1196,12 @@ out_free:
* addrs The pointer to the addresses in user land
* addrssize Size of the addrs buffer
*
- * Returns 0 if ok, <0 errno code on error.
+ * Returns >=0 if ok, <0 errno code on error.
*/
-SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
+SCTP_STATIC int __sctp_setsockopt_connectx(struct sock* sk,
struct sockaddr __user *addrs,
- int addrs_size)
+ int addrs_size,
+ sctp_assoc_t *assoc_id)
{
int err = 0;
struct sockaddr *kaddrs;
@@ -1209,13 +1224,46 @@ SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
if (__copy_from_user(kaddrs, addrs, addrs_size)) {
err = -EFAULT;
} else {
- err = __sctp_connect(sk, kaddrs, addrs_size);
+ err = __sctp_connect(sk, kaddrs, addrs_size, assoc_id);
}
kfree(kaddrs);
+
return err;
}
+/*
+ * This is an older interface. It's kept for backward compatibility
+ * to the option that doesn't provide association id.
+ */
+SCTP_STATIC int sctp_setsockopt_connectx_old(struct sock* sk,
+ struct sockaddr __user *addrs,
+ int addrs_size)
+{
+ return __sctp_setsockopt_connectx(sk, addrs, addrs_size, NULL);
+}
+
+/*
+ * New interface for the API. The since the API is done with a socket
+ * option, to make it simple we feed back the association id is as a return
+ * indication to the call. Error is always negative and association id is
+ * always positive.
+ */
+SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
+ struct sockaddr __user *addrs,
+ int addrs_size)
+{
+ sctp_assoc_t assoc_id = 0;
+ int err = 0;
+
+ err = __sctp_setsockopt_connectx(sk, addrs, addrs_size, &assoc_id);
+
+ if (err)
+ return err;
+ else
+ return assoc_id;
+}
+
/* API 3.1.4 close() - UDP Style Syntax
* Applications use close() to perform graceful shutdown (as described in
* Section 10.1 of [SCTP]) on ALL the associations currently represented
@@ -2305,74 +2353,98 @@ static int sctp_setsockopt_peer_addr_params(struct sock *sk,
return 0;
}
-/* 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
- * endpoints default delayed ack timer value. If the assoc_id field is
- * non-zero, then the set or get effects the specified association.
- *
- * struct sctp_assoc_value {
- * sctp_assoc_t assoc_id;
- * uint32_t assoc_value;
- * };
+/*
+ * 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK)
+ *
+ * This option will effect the way delayed acks are performed. This
+ * option allows you to get or set the delayed ack time, in
+ * milliseconds. It also allows changing the delayed ack frequency.
+ * Changing the frequency to 1 disables the delayed sack algorithm. If
+ * the assoc_id is 0, then this sets or gets the endpoints default
+ * values. If the assoc_id field is non-zero, then the set or get
+ * effects the specified association for the one to many model (the
+ * assoc_id field is ignored by the one to one model). Note that if
+ * sack_delay or sack_freq are 0 when setting this option, then the
+ * current values will remain unchanged.
+ *
+ * struct sctp_sack_info {
+ * sctp_assoc_t sack_assoc_id;
+ * uint32_t sack_delay;
+ * uint32_t sack_freq;
+ * };
*
- * assoc_id - This parameter, indicates which association the
- * user is preforming an action upon. Note that if
- * this field's value is zero then the endpoints
- * default value is changed (effecting future
- * associations only).
+ * sack_assoc_id - This parameter, indicates which association the user
+ * is performing an action upon. Note that if this field's value is
+ * zero then the endpoints default value is changed (effecting future
+ * associations only).
*
- * assoc_value - This parameter contains the number of milliseconds
- * that the user is requesting the delayed ACK timer
- * be set to. Note that this value is defined in
- * the standard to be between 200 and 500 milliseconds.
+ * sack_delay - This parameter contains the number of milliseconds that
+ * the user is requesting the delayed ACK timer be set to. Note that
+ * this value is defined in the standard to be between 200 and 500
+ * milliseconds.
*
- * Note: a value of zero will leave the value alone,
- * but disable SACK delay. A non-zero value will also
- * enable SACK delay.
+ * sack_freq - This parameter contains the number of packets that must
+ * be received before a sack is sent without waiting for the delay
+ * timer to expire. The default value for this is 2, setting this
+ * value to 1 will disable the delayed sack algorithm.
*/
-static int sctp_setsockopt_delayed_ack_time(struct sock *sk,
+static int sctp_setsockopt_delayed_ack(struct sock *sk,
char __user *optval, int optlen)
{
- struct sctp_assoc_value params;
+ struct sctp_sack_info params;
struct sctp_transport *trans = NULL;
struct sctp_association *asoc = NULL;
struct sctp_sock *sp = sctp_sk(sk);
- if (optlen != sizeof(struct sctp_assoc_value))
- return - EINVAL;
+ if (optlen == sizeof(struct sctp_sack_info)) {
+ if (copy_from_user(&params, optval, optlen))
+ return -EFAULT;
- if (copy_from_user(&params, optval, optlen))
- return -EFAULT;
+ if (params.sack_delay == 0 && params.sack_freq == 0)
+ return 0;
+ } else if (optlen == sizeof(struct sctp_assoc_value)) {
+ printk(KERN_WARNING "SCTP: Use of struct sctp_sack_info "
+ "in delayed_ack socket option deprecated\n");
+ printk(KERN_WARNING "SCTP: struct sctp_sack_info instead\n");
+ if (copy_from_user(&params, optval, optlen))
+ return -EFAULT;
+
+ if (params.sack_delay == 0)
+ params.sack_freq = 1;
+ else
+ params.sack_freq = 0;
+ } else
+ return - EINVAL;
/* Validate value parameter. */
- if (params.assoc_value > 500)
+ if (params.sack_delay > 500)
return -EINVAL;
- /* Get association, if assoc_id != 0 and the socket is a one
+ /* Get association, if sack_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))
+ asoc = sctp_id2assoc(sk, params.sack_assoc_id);
+ if (!asoc && params.sack_assoc_id && sctp_style(sk, UDP))
return -EINVAL;
- if (params.assoc_value) {
+ if (params.sack_delay) {
if (asoc) {
asoc->sackdelay =
- msecs_to_jiffies(params.assoc_value);
+ msecs_to_jiffies(params.sack_delay);
asoc->param_flags =
(asoc->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_ENABLE;
} else {
- sp->sackdelay = params.assoc_value;
+ sp->sackdelay = params.sack_delay;
sp->param_flags =
(sp->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_ENABLE;
}
- } else {
+ }
+
+ if (params.sack_freq == 1) {
if (asoc) {
asoc->param_flags =
(asoc->param_flags & ~SPP_SACKDELAY) |
@@ -2382,22 +2454,40 @@ static int sctp_setsockopt_delayed_ack_time(struct sock *sk,
(sp->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_DISABLE;
}
+ } else if (params.sack_freq > 1) {
+ if (asoc) {
+ asoc->sackfreq = params.sack_freq;
+ asoc->param_flags =
+ (asoc->param_flags & ~SPP_SACKDELAY) |
+ SPP_SACKDELAY_ENABLE;
+ } else {
+ sp->sackfreq = params.sack_freq;
+ sp->param_flags =
+ (sp->param_flags & ~SPP_SACKDELAY) |
+ SPP_SACKDELAY_ENABLE;
+ }
}
/* If change is for association, also apply to each transport. */
if (asoc) {
list_for_each_entry(trans, &asoc->peer.transport_addr_list,
transports) {
- if (params.assoc_value) {
+ if (params.sack_delay) {
trans->sackdelay =
- msecs_to_jiffies(params.assoc_value);
+ msecs_to_jiffies(params.sack_delay);
trans->param_flags =
(trans->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_ENABLE;
- } else {
+ }
+ if (params.sack_freq == 1) {
trans->param_flags =
(trans->param_flags & ~SPP_SACKDELAY) |
SPP_SACKDELAY_DISABLE;
+ } else if (params.sack_freq > 1) {
+ trans->sackfreq = params.sack_freq;
+ trans->param_flags =
+ (trans->param_flags & ~SPP_SACKDELAY) |
+ SPP_SACKDELAY_ENABLE;
}
}
}
@@ -3164,10 +3254,18 @@ SCTP_STATIC int sctp_setsockopt(struct sock *sk, int level, int optname,
optlen, SCTP_BINDX_REM_ADDR);
break;
+ case SCTP_SOCKOPT_CONNECTX_OLD:
+ /* 'optlen' is the size of the addresses buffer. */
+ retval = sctp_setsockopt_connectx_old(sk,
+ (struct sockaddr __user *)optval,
+ optlen);
+ break;
+
case SCTP_SOCKOPT_CONNECTX:
/* 'optlen' is the size of the addresses buffer. */
- retval = sctp_setsockopt_connectx(sk, (struct sockaddr __user *)optval,
- optlen);
+ retval = sctp_setsockopt_connectx(sk,
+ (struct sockaddr __user *)optval,
+ optlen);
break;
case SCTP_DISABLE_FRAGMENTS:
@@ -3186,8 +3284,8 @@ SCTP_STATIC int sctp_setsockopt(struct sock *sk, int level, int optname,
retval = sctp_setsockopt_peer_addr_params(sk, optval, optlen);
break;
- case SCTP_DELAYED_ACK_TIME:
- retval = sctp_setsockopt_delayed_ack_time(sk, optval, optlen);
+ case SCTP_DELAYED_ACK:
+ retval = sctp_setsockopt_delayed_ack(sk, optval, optlen);
break;
case SCTP_PARTIAL_DELIVERY_POINT:
retval = sctp_setsockopt_partial_delivery_point(sk, optval, optlen);
@@ -3294,7 +3392,7 @@ SCTP_STATIC int sctp_connect(struct sock *sk, struct sockaddr *addr,
/* Pass correct addr len to common routine (so it knows there
* is only one address being passed.
*/
- err = __sctp_connect(sk, addr, af->sockaddr_len);
+ err = __sctp_connect(sk, addr, af->sockaddr_len, NULL);
}
sctp_release_sock(sk);
@@ -3446,6 +3544,7 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
sp->pathmaxrxt = sctp_max_retrans_path;
sp->pathmtu = 0; // allow default discovery
sp->sackdelay = sctp_sack_timeout;
+ sp->sackfreq = 2;
sp->param_flags = SPP_HB_ENABLE |
SPP_PMTUD_ENABLE |
SPP_SACKDELAY_ENABLE;
@@ -3497,7 +3596,7 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
}
/* Cleanup any SCTP per socket resources. */
-SCTP_STATIC int sctp_destroy_sock(struct sock *sk)
+SCTP_STATIC void sctp_destroy_sock(struct sock *sk)
{
struct sctp_endpoint *ep;
@@ -3507,7 +3606,6 @@ SCTP_STATIC int sctp_destroy_sock(struct sock *sk)
ep = sctp_sk(sk)->ep;
sctp_endpoint_free(ep);
atomic_dec(&sctp_sockets_allocated);
- return 0;
}
/* API 4.1.7 shutdown() - TCP Style Syntax
@@ -3999,70 +4097,91 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
return 0;
}
-/* 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
- * endpoints default delayed ack timer value. If the assoc_id field is
- * non-zero, then the set or get effects the specified association.
- *
- * struct sctp_assoc_value {
- * sctp_assoc_t assoc_id;
- * uint32_t assoc_value;
- * };
+/*
+ * 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK)
+ *
+ * This option will effect the way delayed acks are performed. This
+ * option allows you to get or set the delayed ack time, in
+ * milliseconds. It also allows changing the delayed ack frequency.
+ * Changing the frequency to 1 disables the delayed sack algorithm. If
+ * the assoc_id is 0, then this sets or gets the endpoints default
+ * values. If the assoc_id field is non-zero, then the set or get
+ * effects the specified association for the one to many model (the
+ * assoc_id field is ignored by the one to one model). Note that if
+ * sack_delay or sack_freq are 0 when setting this option, then the
+ * current values will remain unchanged.
+ *
+ * struct sctp_sack_info {
+ * sctp_assoc_t sack_assoc_id;
+ * uint32_t sack_delay;
+ * uint32_t sack_freq;
+ * };
*
- * assoc_id - This parameter, indicates which association the
- * user is preforming an action upon. Note that if
- * this field's value is zero then the endpoints
- * default value is changed (effecting future
- * associations only).
+ * sack_assoc_id - This parameter, indicates which association the user
+ * is performing an action upon. Note that if this field's value is
+ * zero then the endpoints default value is changed (effecting future
+ * associations only).
*
- * assoc_value - This parameter contains the number of milliseconds
- * that the user is requesting the delayed ACK timer
- * be set to. Note that this value is defined in
- * the standard to be between 200 and 500 milliseconds.
+ * sack_delay - This parameter contains the number of milliseconds that
+ * the user is requesting the delayed ACK timer be set to. Note that
+ * this value is defined in the standard to be between 200 and 500
+ * milliseconds.
*
- * Note: a value of zero will leave the value alone,
- * but disable SACK delay. A non-zero value will also
- * enable SACK delay.
+ * sack_freq - This parameter contains the number of packets that must
+ * be received before a sack is sent without waiting for the delay
+ * timer to expire. The default value for this is 2, setting this
+ * value to 1 will disable the delayed sack algorithm.
*/
-static int sctp_getsockopt_delayed_ack_time(struct sock *sk, int len,
+static int sctp_getsockopt_delayed_ack(struct sock *sk, int len,
char __user *optval,
int __user *optlen)
{
- struct sctp_assoc_value params;
+ struct sctp_sack_info params;
struct sctp_association *asoc = NULL;
struct sctp_sock *sp = sctp_sk(sk);
- if (len < sizeof(struct sctp_assoc_value))
- return - EINVAL;
+ if (len >= sizeof(struct sctp_sack_info)) {
+ len = sizeof(struct sctp_sack_info);
- len = sizeof(struct sctp_assoc_value);
-
- if (copy_from_user(&params, optval, len))
- return -EFAULT;
+ if (copy_from_user(&params, optval, len))
+ return -EFAULT;
+ } else if (len == sizeof(struct sctp_assoc_value)) {
+ printk(KERN_WARNING "SCTP: Use of struct sctp_sack_info "
+ "in delayed_ack socket option deprecated\n");
+ printk(KERN_WARNING "SCTP: struct sctp_sack_info instead\n");
+ if (copy_from_user(&params, optval, len))
+ return -EFAULT;
+ } else
+ return - EINVAL;
- /* Get association, if assoc_id != 0 and the socket is a one
+ /* Get association, if sack_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))
+ asoc = sctp_id2assoc(sk, params.sack_assoc_id);
+ if (!asoc && params.sack_assoc_id && sctp_style(sk, UDP))
return -EINVAL;
if (asoc) {
/* Fetch association values. */
- if (asoc->param_flags & SPP_SACKDELAY_ENABLE)
- params.assoc_value = jiffies_to_msecs(
+ if (asoc->param_flags & SPP_SACKDELAY_ENABLE) {
+ params.sack_delay = jiffies_to_msecs(
asoc->sackdelay);
- else
- params.assoc_value = 0;
+ params.sack_freq = asoc->sackfreq;
+
+ } else {
+ params.sack_delay = 0;
+ params.sack_freq = 1;
+ }
} else {
/* Fetch socket values. */
- if (sp->param_flags & SPP_SACKDELAY_ENABLE)
- params.assoc_value = sp->sackdelay;
- else
- params.assoc_value = 0;
+ if (sp->param_flags & SPP_SACKDELAY_ENABLE) {
+ params.sack_delay = sp->sackdelay;
+ params.sack_freq = sp->sackfreq;
+ } else {
+ params.sack_delay = 0;
+ params.sack_freq = 1;
+ }
}
if (copy_to_user(optval, &params, len))
@@ -4112,6 +4231,8 @@ static int sctp_getsockopt_peer_addrs_num_old(struct sock *sk, int len,
if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))
return -EFAULT;
+ printk(KERN_WARNING "SCTP: Use of SCTP_GET_PEER_ADDRS_NUM_OLD "
+ "socket option deprecated\n");
/* For UDP-style sockets, id specifies the association to query. */
asoc = sctp_id2assoc(sk, id);
if (!asoc)
@@ -4151,6 +4272,9 @@ static int sctp_getsockopt_peer_addrs_old(struct sock *sk, int len,
if (getaddrs.addr_num <= 0) return -EINVAL;
+ printk(KERN_WARNING "SCTP: Use of SCTP_GET_PEER_ADDRS_OLD "
+ "socket option deprecated\n");
+
/* For UDP-style sockets, id specifies the association to query. */
asoc = sctp_id2assoc(sk, getaddrs.assoc_id);
if (!asoc)
@@ -4244,6 +4368,9 @@ static int sctp_getsockopt_local_addrs_num_old(struct sock *sk, int len,
if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))
return -EFAULT;
+ printk(KERN_WARNING "SCTP: Use of SCTP_GET_LOCAL_ADDRS_NUM_OLD "
+ "socket option deprecated\n");
+
/*
* For UDP-style sockets, id specifies the association to query.
* If the id field is set to the value '0' then the locally bound
@@ -4276,6 +4403,11 @@ static int sctp_getsockopt_local_addrs_num_old(struct sock *sk, int len,
(AF_INET6 == addr->a.sa.sa_family))
continue;
+ if ((PF_INET6 == sk->sk_family) &&
+ inet_v6_ipv6only(sk) &&
+ (AF_INET == addr->a.sa.sa_family))
+ continue;
+
cnt++;
}
rcu_read_unlock();
@@ -4316,6 +4448,10 @@ static int sctp_copy_laddrs_old(struct sock *sk, __u16 port,
if ((PF_INET == sk->sk_family) &&
(AF_INET6 == addr->a.sa.sa_family))
continue;
+ if ((PF_INET6 == sk->sk_family) &&
+ inet_v6_ipv6only(sk) &&
+ (AF_INET == addr->a.sa.sa_family))
+ continue;
memcpy(&temp, &addr->a, sizeof(temp));
if (!temp.v4.sin_port)
temp.v4.sin_port = htons(port);
@@ -4351,6 +4487,10 @@ static int sctp_copy_laddrs(struct sock *sk, __u16 port, void *to,
if ((PF_INET == sk->sk_family) &&
(AF_INET6 == addr->a.sa.sa_family))
continue;
+ if ((PF_INET6 == sk->sk_family) &&
+ inet_v6_ipv6only(sk) &&
+ (AF_INET == addr->a.sa.sa_family))
+ continue;
memcpy(&temp, &addr->a, sizeof(temp));
if (!temp.v4.sin_port)
temp.v4.sin_port = htons(port);
@@ -4404,6 +4544,10 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
if (getaddrs.addr_num <= 0 ||
getaddrs.addr_num >= (INT_MAX / sizeof(union sctp_addr)))
return -EINVAL;
+
+ printk(KERN_WARNING "SCTP: Use of SCTP_GET_LOCAL_ADDRS_OLD "
+ "socket option deprecated\n");
+
/*
* For UDP-style sockets, id specifies the association to query.
* If the id field is set to the value '0' then the locally bound
@@ -5220,8 +5364,8 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
retval = sctp_getsockopt_peer_addr_params(sk, len, optval,
optlen);
break;
- case SCTP_DELAYED_ACK_TIME:
- retval = sctp_getsockopt_delayed_ack_time(sk, len, optval,
+ case SCTP_DELAYED_ACK:
+ retval = sctp_getsockopt_delayed_ack(sk, len, optval,
optlen);
break;
case SCTP_INITMSG:
@@ -5441,12 +5585,13 @@ pp_found:
struct sctp_endpoint *ep2;
ep2 = sctp_sk(sk2)->ep;
- if (reuse && sk2->sk_reuse &&
- sk2->sk_state != SCTP_SS_LISTENING)
+ if (sk == sk2 ||
+ (reuse && sk2->sk_reuse &&
+ sk2->sk_state != SCTP_SS_LISTENING))
continue;
- if (sctp_bind_addr_match(&ep2->base.bind_addr, addr,
- sctp_sk(sk))) {
+ if (sctp_bind_addr_conflict(&ep2->base.bind_addr, addr,
+ sctp_sk(sk2), sctp_sk(sk))) {
ret = (long)sk2;
goto fail_unlock;
}
@@ -5559,8 +5704,13 @@ SCTP_STATIC int sctp_seqpacket_listen(struct sock *sk, int backlog)
if (!ep->base.bind_addr.port) {
if (sctp_autobind(sk))
return -EAGAIN;
- } else
+ } else {
+ if (sctp_get_port(sk, inet_sk(sk)->num)) {
+ sk->sk_state = SCTP_SS_CLOSED;
+ return -EADDRINUSE;
+ }
sctp_sk(sk)->bind_hash->fastreuse = 0;
+ }
sctp_hash_endpoint(ep);
return 0;
@@ -5630,7 +5780,7 @@ int sctp_inet_listen(struct socket *sock, int backlog)
goto out;
/* Allocate HMAC for generating cookie. */
- if (sctp_hmac_alg) {
+ if (!sctp_sk(sk)->hmac && sctp_hmac_alg) {
tfm = crypto_alloc_hash(sctp_hmac_alg, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm)) {
if (net_ratelimit()) {
@@ -5658,7 +5808,8 @@ int sctp_inet_listen(struct socket *sock, int backlog)
goto cleanup;
/* Store away the transform reference. */
- sctp_sk(sk)->hmac = tfm;
+ if (!sctp_sk(sk)->hmac)
+ sctp_sk(sk)->hmac = tfm;
out:
sctp_release_sock(sk);
return err;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 14:48:18 +0000