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Commit 25243633 authored by David S. Miller's avatar David S. Miller
Browse files

Merge master.kernel.org:/pub/scm/linux/kernel/git/vxy/lksctp-dev

parents 0db3dc73 5131a184

net/sctp/socket.c

+81 −39
Original line number Original line Diff line number Diff line
@@ -3375,12 +3375,13 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, 
	sctp_assoc_t associd;

	sctp_assoc_t associd;

	int retval = 0;

	int retval = 0;





	if (len != sizeof(status)) {

	if (len < sizeof(status)) {

		retval = -EINVAL;

		retval = -EINVAL;

		goto out;

		goto out;

	}

	}





	if (copy_from_user(&status, optval, sizeof(status))) {

	len = sizeof(status);

	if (copy_from_user(&status, optval, len)) {

		retval = -EFAULT;

		retval = -EFAULT;

		goto out;

		goto out;

	}

	}
@@ -3452,12 +3453,13 @@ static int sctp_getsockopt_peer_addr_info(struct sock *sk, int len, 
	struct sctp_transport *transport;

	struct sctp_transport *transport;

	int retval = 0;

	int retval = 0;





	if (len != sizeof(pinfo)) {

	if (len < sizeof(pinfo)) {

		retval = -EINVAL;

		retval = -EINVAL;

		goto out;

		goto out;

	}

	}





	if (copy_from_user(&pinfo, optval, sizeof(pinfo))) {

	len = sizeof(pinfo);

	if (copy_from_user(&pinfo, optval, len)) {

		retval = -EFAULT;

		retval = -EFAULT;

		goto out;

		goto out;

	}

	}
@@ -3523,8 +3525,11 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len, 
static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,

static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,

				  int __user *optlen)

				  int __user *optlen)

{

{

	if (len != sizeof(struct sctp_event_subscribe))

	if (len < sizeof(struct sctp_event_subscribe))

		return -EINVAL;

		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))

	if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len))

		return -EFAULT;

		return -EFAULT;

	return 0;

	return 0;
@@ -3546,9 +3551,12 @@ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optv 
	/* Applicable to UDP-style socket only */

	/* Applicable to UDP-style socket only */

	if (sctp_style(sk, TCP))

	if (sctp_style(sk, TCP))

		return -EOPNOTSUPP;

		return -EOPNOTSUPP;

	if (len != sizeof(int))

	if (len < sizeof(int))

		return -EINVAL;

		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 -EFAULT;

	return 0;

	return 0;

}

}
@@ -3599,8 +3607,9 @@ static int sctp_getsockopt_peeloff(struct sock *sk, int len, char __user *optval 
	int retval = 0;

	int retval = 0;

	struct sctp_association *asoc;

	struct sctp_association *asoc;





	if (len != sizeof(sctp_peeloff_arg_t))

	if (len < sizeof(sctp_peeloff_arg_t))

		return -EINVAL;

		return -EINVAL;

	len = sizeof(sctp_peeloff_arg_t);

	if (copy_from_user(&peeloff, optval, len))

	if (copy_from_user(&peeloff, optval, len))

		return -EFAULT;

		return -EFAULT;
@@ -3628,6 +3637,8 @@ static int sctp_getsockopt_peeloff(struct sock *sk, int len, char __user *optval 




	/* Return the fd mapped to the new socket.  */

	/* Return the fd mapped to the new socket.  */

	peeloff.sd = retval;

	peeloff.sd = retval;

	if (put_user(len, optlen))

		return -EFAULT;

	if (copy_to_user(optval, &peeloff, len))

	if (copy_to_user(optval, &peeloff, len))

		retval = -EFAULT;

		retval = -EFAULT;
@@ -3736,9 +3747,9 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len, 
	struct sctp_association *asoc = NULL;

	struct sctp_association *asoc = NULL;

	struct sctp_sock        *sp = sctp_sk(sk);

	struct sctp_sock        *sp = sctp_sk(sk);





	if (len != sizeof(struct sctp_paddrparams))

	if (len < sizeof(struct sctp_paddrparams))

		return -EINVAL;

		return -EINVAL;



	len = sizeof(struct sctp_paddrparams);

	if (copy_from_user(&params, optval, len))

	if (copy_from_user(&params, optval, len))

		return -EFAULT;

		return -EFAULT;
@@ -3837,9 +3848,11 @@ static int sctp_getsockopt_delayed_ack_time(struct sock *sk, int len, 
	struct sctp_association *asoc = NULL;

	struct sctp_association *asoc = NULL;

	struct sctp_sock        *sp = sctp_sk(sk);

	struct sctp_sock        *sp = sctp_sk(sk);





	if (len != sizeof(struct sctp_assoc_value))

	if (len < sizeof(struct sctp_assoc_value))

		return - EINVAL;

		return - EINVAL;





	len = sizeof(struct sctp_assoc_value);



	if (copy_from_user(&params, optval, len))

	if (copy_from_user(&params, optval, len))

		return -EFAULT;

		return -EFAULT;
@@ -3888,8 +3901,11 @@ static int sctp_getsockopt_delayed_ack_time(struct sock *sk, int len, 
 */

 */

static int sctp_getsockopt_initmsg(struct sock *sk, int len, char __user *optval, int __user *optlen)

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;

		return -EINVAL;

	len = sizeof(struct sctp_initmsg);

	if (put_user(len, optlen))

		return -EFAULT;

	if (copy_to_user(optval, &sctp_sk(sk)->initmsg, len))

	if (copy_to_user(optval, &sctp_sk(sk)->initmsg, len))

		return -EFAULT;

		return -EFAULT;

	return 0;

	return 0;
@@ -3904,7 +3920,7 @@ static int sctp_getsockopt_peer_addrs_num_old(struct sock *sk, int len, 
	struct list_head *pos;

	struct list_head *pos;

	int cnt = 0;

	int cnt = 0;





	if (len != sizeof(sctp_assoc_t))

	if (len < sizeof(sctp_assoc_t))

		return -EINVAL;

		return -EINVAL;





	if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))

	if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))
@@ -3940,10 +3956,12 @@ static int sctp_getsockopt_peer_addrs_old(struct sock *sk, int len, 
	struct sctp_sock *sp = sctp_sk(sk);

	struct sctp_sock *sp = sctp_sk(sk);

	int addrlen;

	int addrlen;





	if (len != sizeof(struct sctp_getaddrs_old))

	if (len < sizeof(struct sctp_getaddrs_old))

		return -EINVAL;

		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;

		return -EFAULT;





	if (getaddrs.addr_num <= 0) return -EINVAL;

	if (getaddrs.addr_num <= 0) return -EINVAL;
@@ -3966,7 +3984,9 @@ static int sctp_getsockopt_peer_addrs_old(struct sock *sk, int len, 
		if (cnt >= getaddrs.addr_num) break;

		if (cnt >= getaddrs.addr_num) break;

	}

	}

	getaddrs.addr_num = cnt;

	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 -EFAULT;





	return 0;

	return 0;
@@ -3999,8 +4019,7 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len, 
		return -EINVAL;

		return -EINVAL;





	to = optval + offsetof(struct sctp_getaddrs,addrs);

	to = optval + offsetof(struct sctp_getaddrs,addrs);

	space_left = len - sizeof(struct sctp_getaddrs) -

	space_left = len - offsetof(struct sctp_getaddrs,addrs);

			offsetof(struct sctp_getaddrs,addrs);





	list_for_each(pos, &asoc->peer.transport_addr_list) {

	list_for_each(pos, &asoc->peer.transport_addr_list) {

		from = list_entry(pos, struct sctp_transport, transports);

		from = list_entry(pos, struct sctp_transport, transports);
@@ -4037,7 +4056,7 @@ static int sctp_getsockopt_local_addrs_num_old(struct sock *sk, int len, 
	rwlock_t *addr_lock;

	rwlock_t *addr_lock;

	int cnt = 0;

	int cnt = 0;





	if (len != sizeof(sctp_assoc_t))

	if (len < sizeof(sctp_assoc_t))

		return -EINVAL;

		return -EINVAL;





	if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))

	if (copy_from_user(&id, optval, sizeof(sctp_assoc_t)))
@@ -4179,10 +4198,11 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len, 
	void *buf;

	void *buf;

	int bytes_copied = 0;

	int bytes_copied = 0;





	if (len != sizeof(struct sctp_getaddrs_old))

	if (len < sizeof(struct sctp_getaddrs_old))

		return -EINVAL;

		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;

		return -EFAULT;





	if (getaddrs.addr_num <= 0) return -EINVAL;

	if (getaddrs.addr_num <= 0) return -EINVAL;
@@ -4254,7 +4274,7 @@ copy_getaddrs: 




	/* copy the leading structure back to user */

	/* copy the leading structure back to user */

	getaddrs.addr_num = cnt;

	getaddrs.addr_num = cnt;

	if (copy_to_user(optval, &getaddrs, sizeof(struct sctp_getaddrs_old)))

	if (copy_to_user(optval, &getaddrs, len))

		err = -EFAULT;

		err = -EFAULT;





error:

error:
@@ -4282,7 +4302,7 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len, 
	void *addrs;

	void *addrs;

	void *buf;

	void *buf;





	if (len <= sizeof(struct sctp_getaddrs))

	if (len < sizeof(struct sctp_getaddrs))

		return -EINVAL;

		return -EINVAL;





	if (copy_from_user(&getaddrs, optval, sizeof(struct sctp_getaddrs)))

	if (copy_from_user(&getaddrs, optval, sizeof(struct sctp_getaddrs)))
@@ -4306,8 +4326,8 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len, 
	}

	}





	to = optval + offsetof(struct sctp_getaddrs,addrs);

	to = optval + offsetof(struct sctp_getaddrs,addrs);

	space_left = len - sizeof(struct sctp_getaddrs) -

	space_left = len - offsetof(struct sctp_getaddrs,addrs);

			 offsetof(struct sctp_getaddrs,addrs);



	addrs = kmalloc(space_left, GFP_KERNEL);

	addrs = kmalloc(space_left, GFP_KERNEL);

	if (!addrs)

	if (!addrs)

		return -ENOMEM;

		return -ENOMEM;
@@ -4379,10 +4399,12 @@ static int sctp_getsockopt_primary_addr(struct sock *sk, int len, 
	struct sctp_association *asoc;

	struct sctp_association *asoc;

	struct sctp_sock *sp = sctp_sk(sk);

	struct sctp_sock *sp = sctp_sk(sk);





	if (len != sizeof(struct sctp_prim))

	if (len < sizeof(struct sctp_prim))

		return -EINVAL;

		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;

		return -EFAULT;





	asoc = sctp_id2assoc(sk, prim.ssp_assoc_id);

	asoc = sctp_id2assoc(sk, prim.ssp_assoc_id);
@@ -4398,7 +4420,9 @@ static int sctp_getsockopt_primary_addr(struct sock *sk, int len, 
	sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp,

	sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp,

			(union sctp_addr *)&prim.ssp_addr);

			(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 -EFAULT;





	return 0;

	return 0;
@@ -4415,10 +4439,15 @@ static int sctp_getsockopt_adaptation_layer(struct sock *sk, int len, 
{

{

	struct sctp_setadaptation adaptation;

	struct sctp_setadaptation adaptation;





	if (len != sizeof(struct sctp_setadaptation))

	if (len < sizeof(struct sctp_setadaptation))

		return -EINVAL;

		return -EINVAL;





	len = sizeof(struct sctp_setadaptation);



	adaptation.ssb_adaptation_ind = sctp_sk(sk)->adaptation_ind;

	adaptation.ssb_adaptation_ind = sctp_sk(sk)->adaptation_ind;



	if (put_user(len, optlen))

		return -EFAULT;

	if (copy_to_user(optval, &adaptation, len))

	if (copy_to_user(optval, &adaptation, len))

		return -EFAULT;

		return -EFAULT;
@@ -4452,9 +4481,12 @@ static int sctp_getsockopt_default_send_param(struct sock *sk, 
	struct sctp_association *asoc;

	struct sctp_association *asoc;

	struct sctp_sock *sp = sctp_sk(sk);

	struct sctp_sock *sp = sctp_sk(sk);





	if (len != sizeof(struct sctp_sndrcvinfo))

	if (len < sizeof(struct sctp_sndrcvinfo))

		return -EINVAL;

		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;

		return -EFAULT;





	asoc = sctp_id2assoc(sk, info.sinfo_assoc_id);

	asoc = sctp_id2assoc(sk, info.sinfo_assoc_id);
@@ -4475,7 +4507,9 @@ static int sctp_getsockopt_default_send_param(struct sock *sk, 
		info.sinfo_timetolive = sp->default_timetolive;

		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 -EFAULT;





	return 0;

	return 0;
@@ -4526,10 +4560,12 @@ static int sctp_getsockopt_rtoinfo(struct sock *sk, int len, 
	struct sctp_rtoinfo rtoinfo;

	struct sctp_rtoinfo rtoinfo;

	struct sctp_association *asoc;

	struct sctp_association *asoc;





	if (len != sizeof (struct sctp_rtoinfo))

	if (len < sizeof (struct sctp_rtoinfo))

		return -EINVAL;

		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;

		return -EFAULT;





	asoc = sctp_id2assoc(sk, rtoinfo.srto_assoc_id);

	asoc = sctp_id2assoc(sk, rtoinfo.srto_assoc_id);
@@ -4581,11 +4617,12 @@ static int sctp_getsockopt_associnfo(struct sock *sk, int len, 
	struct list_head *pos;

	struct list_head *pos;

	int cnt = 0;

	int cnt = 0;





	if (len != sizeof (struct sctp_assocparams))

	if (len < sizeof (struct sctp_assocparams))

		return -EINVAL;

		return -EINVAL;





	if (copy_from_user(&assocparams, optval,

	len = sizeof(struct sctp_assocparams);

			sizeof (struct sctp_assocparams)))



	if (copy_from_user(&assocparams, optval, len))

		return -EFAULT;

		return -EFAULT;





	asoc = sctp_id2assoc(sk, assocparams.sasoc_assoc_id);

	asoc = sctp_id2assoc(sk, assocparams.sasoc_assoc_id);
@@ -4671,9 +4708,11 @@ static int sctp_getsockopt_context(struct sock *sk, int len, 
	struct sctp_sock *sp;

	struct sctp_sock *sp;

	struct sctp_association *asoc;

	struct sctp_association *asoc;





	if (len != sizeof(struct sctp_assoc_value))

	if (len < sizeof(struct sctp_assoc_value))

		return -EINVAL;

		return -EINVAL;





	len = sizeof(struct sctp_assoc_value);



	if (copy_from_user(&params, optval, len))

	if (copy_from_user(&params, optval, len))

		return -EFAULT;

		return -EFAULT;
@@ -6084,8 +6123,11 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, 
	 * queued to the backlog.  This prevents a potential race between

	 * queued to the backlog.  This prevents a potential race between

	 * backlog processing on the old socket and new-packet processing

	 * backlog processing on the old socket and new-packet processing

	 * on the new socket.

	 * 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);

	sctp_assoc_migrate(assoc, newsk);





	/* If the association on the newsk is already closed before accept()

	/* If the association on the newsk is already closed before accept()