struct sctp_association *, sctp_socket_type_t);
static char *sctp_hmac_alg = SCTP_COOKIE_HMAC_ALG;
-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)
{
* 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. */
*
* Only sctp_setsockopt_bindx() is supposed to call this function.
*/
-int sctp_bindx_add(struct sock *sk, struct sockaddr *addrs, int addrcnt)
+static int sctp_bindx_add(struct sock *sk, struct sockaddr *addrs, int addrcnt)
{
int cnt;
int retval = 0;
*
* Only sctp_setsockopt_bindx() is supposed to call this function.
*/
-int sctp_bindx_rem(struct sock *sk, struct sockaddr *addrs, int addrcnt)
+static int sctp_bindx_rem(struct sock *sk, struct sockaddr *addrs, int addrcnt)
{
struct sctp_sock *sp = sctp_sk(sk);
struct sctp_endpoint *ep = sp->ep;
int err = 0;
int addrcnt = 0;
int walk_size = 0;
- union sctp_addr *sa_addr;
+ union sctp_addr *sa_addr = NULL;
void *addr_buf;
unsigned short port;
+ unsigned int f_flags = 0;
sp = sctp_sk(sk);
ep = sp->ep;
goto out_free;
}
- err = sctp_verify_addr(sk, sa_addr, af->sockaddr_len);
+ /* Save current address so we can work with it */
+ memcpy(&to, sa_addr, af->sockaddr_len);
+
+ err = sctp_verify_addr(sk, &to, af->sockaddr_len);
if (err)
goto out_free;
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
* endpoint (other than the one created here).
*/
- asoc2 = sctp_endpoint_lookup_assoc(ep, sa_addr, &transport);
+ asoc2 = sctp_endpoint_lookup_assoc(ep, &to, &transport);
if (asoc2 && asoc2 != asoc) {
if (asoc2->state >= SCTP_STATE_ESTABLISHED)
err = -EISCONN;
* make sure that there is no peeled-off association matching
* the peer address even on another socket.
*/
- if (sctp_endpoint_is_peeled_off(ep, sa_addr)) {
+ if (sctp_endpoint_is_peeled_off(ep, &to)) {
err = -EADDRNOTAVAIL;
goto out_free;
}
}
}
- scope = sctp_scope(sa_addr);
+ scope = sctp_scope(&to);
asoc = sctp_association_new(ep, sk, scope, GFP_KERNEL);
if (!asoc) {
err = -ENOMEM;
}
/* Prime the peer's transport structures. */
- transport = sctp_assoc_add_peer(asoc, sa_addr, GFP_KERNEL,
+ transport = sctp_assoc_add_peer(asoc, &to, GFP_KERNEL,
SCTP_UNKNOWN);
if (!transport) {
err = -ENOMEM;
/* Initialize sk's dport and daddr for getpeername() */
inet_sk(sk)->dport = htons(asoc->peer.port);
- af = sctp_get_af_specific(to.sa.sa_family);
- af->to_sk_daddr(&to, sk);
+ af = sctp_get_af_specific(sa_addr->sa.sa_family);
+ af->to_sk_daddr(sa_addr, sk);
sk->sk_err = 0;
- timeo = sock_sndtimeo(sk, sk->sk_socket->file->f_flags & O_NONBLOCK);
+ /* in-kernel sockets don't generally have a file allocated to them
+ * if all they do is call sock_create_kern().
+ */
+ if (sk->sk_socket->file)
+ f_flags = sk->sk_socket->file->f_flags;
+
+ timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK);
+
err = sctp_wait_for_connect(asoc, &timeo);
/* Don't free association on exit. */
goto out_unlock;
}
if (sinfo_flags & SCTP_ABORT) {
- struct sctp_chunk *chunk;
chunk = sctp_make_abort_user(asoc, msg, msg_len);
if (!chunk) {
sctp_assoc_t associd;
int retval = 0;
- if (len != sizeof(status)) {
+ if (len < sizeof(status)) {
retval = -EINVAL;
goto out;
}
- if (copy_from_user(&status, optval, sizeof(status))) {
+ len = sizeof(status);
+ if (copy_from_user(&status, optval, len)) {
retval = -EFAULT;
goto out;
}
struct sctp_transport *transport;
int retval = 0;
- if (len != sizeof(pinfo)) {
+ if (len < sizeof(pinfo)) {
retval = -EINVAL;
goto out;
}
- if (copy_from_user(&pinfo, optval, sizeof(pinfo))) {
+ len = sizeof(pinfo);
+ if (copy_from_user(&pinfo, optval, len)) {
retval = -EFAULT;
goto out;
}
static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
int __user *optlen)
{
- if (len != sizeof(struct sctp_event_subscribe))
+ if (len < sizeof(struct sctp_event_subscribe))
return -EINVAL;
+ len = sizeof(struct sctp_event_subscribe);
+ if (put_user(len, optlen))
+ return -EFAULT;
if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len))
return -EFAULT;
return 0;
/* Applicable to UDP-style socket only */
if (sctp_style(sk, TCP))
return -EOPNOTSUPP;
- if (len != sizeof(int))
+ if (len < sizeof(int))
return -EINVAL;
- if (copy_to_user(optval, &sctp_sk(sk)->autoclose, len))
+ len = sizeof(int);
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &sctp_sk(sk)->autoclose, sizeof(int)))
return -EFAULT;
return 0;
}
int retval = 0;
struct sctp_association *asoc;
- if (len != sizeof(sctp_peeloff_arg_t))
+ if (len < sizeof(sctp_peeloff_arg_t))
return -EINVAL;
+ len = sizeof(sctp_peeloff_arg_t);
if (copy_from_user(&peeloff, optval, len))
return -EFAULT;
/* Return the fd mapped to the new socket. */
peeloff.sd = retval;
+ if (put_user(len, optlen))
+ return -EFAULT;
if (copy_to_user(optval, &peeloff, len))
retval = -EFAULT;
struct sctp_association *asoc = NULL;
struct sctp_sock *sp = sctp_sk(sk);
- if (len != sizeof(struct sctp_paddrparams))
+ if (len < sizeof(struct sctp_paddrparams))
return -EINVAL;
-
+ len = sizeof(struct sctp_paddrparams);
if (copy_from_user(¶ms, optval, len))
return -EFAULT;
struct sctp_association *asoc = NULL;
struct sctp_sock *sp = sctp_sk(sk);
- if (len != sizeof(struct sctp_assoc_value))
+ if (len < sizeof(struct sctp_assoc_value))
return - EINVAL;
+ len = sizeof(struct sctp_assoc_value);
+
if (copy_from_user(¶ms, optval, len))
return -EFAULT;
*/
static int sctp_getsockopt_initmsg(struct sock *sk, int len, char __user *optval, int __user *optlen)
{
- if (len != sizeof(struct sctp_initmsg))
+ if (len < sizeof(struct sctp_initmsg))
return -EINVAL;
+ len = sizeof(struct sctp_initmsg);
+ if (put_user(len, optlen))
+ return -EFAULT;
if (copy_to_user(optval, &sctp_sk(sk)->initmsg, len))
return -EFAULT;
return 0;
struct list_head *pos;
int cnt = 0;
- if (len != sizeof(sctp_assoc_t))
+ if (len < sizeof(sctp_assoc_t))
return -EINVAL;
if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))
struct sctp_sock *sp = sctp_sk(sk);
int addrlen;
- if (len != sizeof(struct sctp_getaddrs_old))
+ if (len < sizeof(struct sctp_getaddrs_old))
return -EINVAL;
- if (copy_from_user(&getaddrs, optval, sizeof(struct sctp_getaddrs_old)))
+ len = sizeof(struct sctp_getaddrs_old);
+
+ if (copy_from_user(&getaddrs, optval, len))
return -EFAULT;
if (getaddrs.addr_num <= 0) return -EINVAL;
if (cnt >= getaddrs.addr_num) break;
}
getaddrs.addr_num = cnt;
- if (copy_to_user(optval, &getaddrs, sizeof(struct sctp_getaddrs_old)))
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &getaddrs, len))
return -EFAULT;
return 0;
return -EINVAL;
to = optval + offsetof(struct sctp_getaddrs,addrs);
- space_left = len - sizeof(struct sctp_getaddrs) -
- offsetof(struct sctp_getaddrs,addrs);
+ space_left = len - offsetof(struct sctp_getaddrs,addrs);
list_for_each(pos, &asoc->peer.transport_addr_list) {
from = list_entry(pos, struct sctp_transport, transports);
rwlock_t *addr_lock;
int cnt = 0;
- if (len != sizeof(sctp_assoc_t))
+ if (len < sizeof(sctp_assoc_t))
return -EINVAL;
if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))
to += addrlen;
cnt ++;
space_left -= addrlen;
- bytes_copied += addrlen;
+ *bytes_copied += addrlen;
}
return cnt;
void *buf;
int bytes_copied = 0;
- if (len != sizeof(struct sctp_getaddrs_old))
+ if (len < sizeof(struct sctp_getaddrs_old))
return -EINVAL;
- if (copy_from_user(&getaddrs, optval, sizeof(struct sctp_getaddrs_old)))
+ len = sizeof(struct sctp_getaddrs_old);
+ if (copy_from_user(&getaddrs, optval, len))
return -EFAULT;
if (getaddrs.addr_num <= 0) return -EINVAL;
/* copy the leading structure back to user */
getaddrs.addr_num = cnt;
- if (copy_to_user(optval, &getaddrs, sizeof(struct sctp_getaddrs_old)))
+ if (copy_to_user(optval, &getaddrs, len))
err = -EFAULT;
error:
void *addrs;
void *buf;
- if (len <= sizeof(struct sctp_getaddrs))
+ if (len < sizeof(struct sctp_getaddrs))
return -EINVAL;
if (copy_from_user(&getaddrs, optval, sizeof(struct sctp_getaddrs)))
}
to = optval + offsetof(struct sctp_getaddrs,addrs);
- space_left = len - sizeof(struct sctp_getaddrs) -
- offsetof(struct sctp_getaddrs,addrs);
+ space_left = len - offsetof(struct sctp_getaddrs,addrs);
+
addrs = kmalloc(space_left, GFP_KERNEL);
if (!addrs)
return -ENOMEM;
space_left, &bytes_copied);
if (cnt < 0) {
err = cnt;
- goto error;
+ goto error_lock;
}
goto copy_getaddrs;
}
addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
if (space_left < addrlen) {
err = -ENOMEM; /*fixme: right error?*/
- goto error;
+ goto error_lock;
}
memcpy(buf, &temp, addrlen);
buf += addrlen;
if (copy_to_user(to, addrs, bytes_copied)) {
err = -EFAULT;
- goto error;
+ goto out;
}
if (put_user(cnt, &((struct sctp_getaddrs __user *)optval)->addr_num)) {
err = -EFAULT;
- goto error;
+ goto out;
}
if (put_user(bytes_copied, optlen))
err = -EFAULT;
-error:
+
+ goto out;
+
+error_lock:
+ sctp_read_unlock(addr_lock);
+
+out:
kfree(addrs);
return err;
}
struct sctp_association *asoc;
struct sctp_sock *sp = sctp_sk(sk);
- if (len != sizeof(struct sctp_prim))
+ if (len < sizeof(struct sctp_prim))
return -EINVAL;
- if (copy_from_user(&prim, optval, sizeof(struct sctp_prim)))
+ len = sizeof(struct sctp_prim);
+
+ if (copy_from_user(&prim, optval, len))
return -EFAULT;
asoc = sctp_id2assoc(sk, prim.ssp_assoc_id);
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp,
(union sctp_addr *)&prim.ssp_addr);
- if (copy_to_user(optval, &prim, sizeof(struct sctp_prim)))
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &prim, len))
return -EFAULT;
return 0;
{
struct sctp_setadaptation adaptation;
- if (len != sizeof(struct sctp_setadaptation))
+ if (len < sizeof(struct sctp_setadaptation))
return -EINVAL;
+ len = sizeof(struct sctp_setadaptation);
+
adaptation.ssb_adaptation_ind = sctp_sk(sk)->adaptation_ind;
+
+ if (put_user(len, optlen))
+ return -EFAULT;
if (copy_to_user(optval, &adaptation, len))
return -EFAULT;
struct sctp_association *asoc;
struct sctp_sock *sp = sctp_sk(sk);
- if (len != sizeof(struct sctp_sndrcvinfo))
+ if (len < sizeof(struct sctp_sndrcvinfo))
return -EINVAL;
- if (copy_from_user(&info, optval, sizeof(struct sctp_sndrcvinfo)))
+
+ len = sizeof(struct sctp_sndrcvinfo);
+
+ if (copy_from_user(&info, optval, len))
return -EFAULT;
asoc = sctp_id2assoc(sk, info.sinfo_assoc_id);
info.sinfo_timetolive = sp->default_timetolive;
}
- if (copy_to_user(optval, &info, sizeof(struct sctp_sndrcvinfo)))
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &info, len))
return -EFAULT;
return 0;
struct sctp_rtoinfo rtoinfo;
struct sctp_association *asoc;
- if (len != sizeof (struct sctp_rtoinfo))
+ if (len < sizeof (struct sctp_rtoinfo))
return -EINVAL;
- if (copy_from_user(&rtoinfo, optval, sizeof (struct sctp_rtoinfo)))
+ len = sizeof(struct sctp_rtoinfo);
+
+ if (copy_from_user(&rtoinfo, optval, len))
return -EFAULT;
asoc = sctp_id2assoc(sk, rtoinfo.srto_assoc_id);
struct list_head *pos;
int cnt = 0;
- if (len != sizeof (struct sctp_assocparams))
+ if (len < sizeof (struct sctp_assocparams))
return -EINVAL;
- if (copy_from_user(&assocparams, optval,
- sizeof (struct sctp_assocparams)))
+ len = sizeof(struct sctp_assocparams);
+
+ if (copy_from_user(&assocparams, optval, len))
return -EFAULT;
asoc = sctp_id2assoc(sk, assocparams.sasoc_assoc_id);
struct sctp_sock *sp;
struct sctp_association *asoc;
- if (len != sizeof(struct sctp_assoc_value))
+ if (len < sizeof(struct sctp_assoc_value))
return -EINVAL;
+ len = sizeof(struct sctp_assoc_value);
+
if (copy_from_user(¶ms, optval, len))
return -EFAULT;
char __user *optval,
int __user *optlen)
{
- u32 val;
+ u32 val;
if (len < sizeof(u32))
return -EINVAL;
char __user *optval,
int __user *optlen)
{
- int val;
+ int val;
if (len < sizeof(int))
return -EINVAL;
return err;
}
-void sctp_wait_for_close(struct sock *sk, long timeout)
+static void sctp_wait_for_close(struct sock *sk, long timeout)
{
DEFINE_WAIT(wait);
* queued to the backlog. This prevents a potential race between
* backlog processing on the old socket and new-packet processing
* on the new socket.
+ *
+ * The caller has just allocated newsk so we can guarantee that other
+ * paths won't try to lock it and then oldsk.
*/
- sctp_lock_sock(newsk);
+ lock_sock_nested(newsk, SINGLE_DEPTH_NESTING);
sctp_assoc_migrate(assoc, newsk);
/* If the association on the newsk is already closed before accept()
git.openpandora.org / pandora-kernel.git / blobdiff