aboutsummaryrefslogtreecommitdiffstats
path: root/net/sctp/socket.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/sctp/socket.c')
-rw-r--r--net/sctp/socket.c67
1 files changed, 56 insertions, 11 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 6140471efd4b..e4e892cc5644 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -999,7 +999,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
if (unlikely(addrs_size <= 0))
return -EINVAL;
- kaddrs = vmemdup_user(addrs, addrs_size);
+ kaddrs = memdup_user(addrs, addrs_size);
if (unlikely(IS_ERR(kaddrs)))
return PTR_ERR(kaddrs);
@@ -1007,7 +1007,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
addr_buf = kaddrs;
while (walk_size < addrs_size) {
if (walk_size + sizeof(sa_family_t) > addrs_size) {
- kvfree(kaddrs);
+ kfree(kaddrs);
return -EINVAL;
}
@@ -1018,7 +1018,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
* causes the address buffer to overflow return EINVAL.
*/
if (!af || (walk_size + af->sockaddr_len) > addrs_size) {
- kvfree(kaddrs);
+ kfree(kaddrs);
return -EINVAL;
}
addrcnt++;
@@ -1054,7 +1054,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
}
out:
- kvfree(kaddrs);
+ kfree(kaddrs);
return err;
}
@@ -1329,7 +1329,7 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
if (unlikely(addrs_size <= 0))
return -EINVAL;
- kaddrs = vmemdup_user(addrs, addrs_size);
+ kaddrs = memdup_user(addrs, addrs_size);
if (unlikely(IS_ERR(kaddrs)))
return PTR_ERR(kaddrs);
@@ -1349,7 +1349,7 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
err = __sctp_connect(sk, kaddrs, addrs_size, flags, assoc_id);
out_free:
- kvfree(kaddrs);
+ kfree(kaddrs);
return err;
}
@@ -1913,7 +1913,10 @@ static int sctp_sendmsg_to_asoc(struct sctp_association *asoc,
if (sctp_wspace(asoc) < (int)msg_len)
sctp_prsctp_prune(asoc, sinfo, msg_len - sctp_wspace(asoc));
- if (sctp_wspace(asoc) <= 0) {
+ if (sk_under_memory_pressure(sk))
+ sk_mem_reclaim(sk);
+
+ if (sctp_wspace(asoc) <= 0 || !sk_wmem_schedule(sk, msg_len)) {
timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT);
err = sctp_wait_for_sndbuf(asoc, &timeo, msg_len);
if (err)
@@ -2920,6 +2923,9 @@ static int sctp_setsockopt_delayed_ack(struct sock *sk,
return 0;
}
+ if (sctp_style(sk, TCP))
+ params.sack_assoc_id = SCTP_FUTURE_ASSOC;
+
if (params.sack_assoc_id == SCTP_FUTURE_ASSOC ||
params.sack_assoc_id == SCTP_ALL_ASSOC) {
if (params.sack_delay) {
@@ -3024,6 +3030,9 @@ static int sctp_setsockopt_default_send_param(struct sock *sk,
return 0;
}
+ if (sctp_style(sk, TCP))
+ info.sinfo_assoc_id = SCTP_FUTURE_ASSOC;
+
if (info.sinfo_assoc_id == SCTP_FUTURE_ASSOC ||
info.sinfo_assoc_id == SCTP_ALL_ASSOC) {
sp->default_stream = info.sinfo_stream;
@@ -3081,6 +3090,9 @@ static int sctp_setsockopt_default_sndinfo(struct sock *sk,
return 0;
}
+ if (sctp_style(sk, TCP))
+ info.snd_assoc_id = SCTP_FUTURE_ASSOC;
+
if (info.snd_assoc_id == SCTP_FUTURE_ASSOC ||
info.snd_assoc_id == SCTP_ALL_ASSOC) {
sp->default_stream = info.snd_sid;
@@ -3531,6 +3543,9 @@ static int sctp_setsockopt_context(struct sock *sk, char __user *optval,
return 0;
}
+ if (sctp_style(sk, TCP))
+ params.assoc_id = SCTP_FUTURE_ASSOC;
+
if (params.assoc_id == SCTP_FUTURE_ASSOC ||
params.assoc_id == SCTP_ALL_ASSOC)
sp->default_rcv_context = params.assoc_value;
@@ -3670,6 +3685,9 @@ static int sctp_setsockopt_maxburst(struct sock *sk,
return 0;
}
+ if (sctp_style(sk, TCP))
+ params.assoc_id = SCTP_FUTURE_ASSOC;
+
if (params.assoc_id == SCTP_FUTURE_ASSOC ||
params.assoc_id == SCTP_ALL_ASSOC)
sp->max_burst = params.assoc_value;
@@ -3798,6 +3816,9 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
goto out;
}
+ if (sctp_style(sk, TCP))
+ authkey->sca_assoc_id = SCTP_FUTURE_ASSOC;
+
if (authkey->sca_assoc_id == SCTP_FUTURE_ASSOC ||
authkey->sca_assoc_id == SCTP_ALL_ASSOC) {
ret = sctp_auth_set_key(ep, asoc, authkey);
@@ -3853,6 +3874,9 @@ static int sctp_setsockopt_active_key(struct sock *sk,
if (asoc)
return sctp_auth_set_active_key(ep, asoc, val.scact_keynumber);
+ if (sctp_style(sk, TCP))
+ val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
val.scact_assoc_id == SCTP_ALL_ASSOC) {
ret = sctp_auth_set_active_key(ep, asoc, val.scact_keynumber);
@@ -3904,6 +3928,9 @@ static int sctp_setsockopt_del_key(struct sock *sk,
if (asoc)
return sctp_auth_del_key_id(ep, asoc, val.scact_keynumber);
+ if (sctp_style(sk, TCP))
+ val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
val.scact_assoc_id == SCTP_ALL_ASSOC) {
ret = sctp_auth_del_key_id(ep, asoc, val.scact_keynumber);
@@ -3954,6 +3981,9 @@ static int sctp_setsockopt_deactivate_key(struct sock *sk, char __user *optval,
if (asoc)
return sctp_auth_deact_key_id(ep, asoc, val.scact_keynumber);
+ if (sctp_style(sk, TCP))
+ val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
val.scact_assoc_id == SCTP_ALL_ASSOC) {
ret = sctp_auth_deact_key_id(ep, asoc, val.scact_keynumber);
@@ -4169,6 +4199,9 @@ static int sctp_setsockopt_default_prinfo(struct sock *sk,
goto out;
}
+ if (sctp_style(sk, TCP))
+ info.pr_assoc_id = SCTP_FUTURE_ASSOC;
+
if (info.pr_assoc_id == SCTP_FUTURE_ASSOC ||
info.pr_assoc_id == SCTP_ALL_ASSOC) {
SCTP_PR_SET_POLICY(sp->default_flags, info.pr_policy);
@@ -4251,6 +4284,9 @@ static int sctp_setsockopt_enable_strreset(struct sock *sk,
goto out;
}
+ if (sctp_style(sk, TCP))
+ params.assoc_id = SCTP_FUTURE_ASSOC;
+
if (params.assoc_id == SCTP_FUTURE_ASSOC ||
params.assoc_id == SCTP_ALL_ASSOC)
ep->strreset_enable = params.assoc_value;
@@ -4376,6 +4412,9 @@ static int sctp_setsockopt_scheduler(struct sock *sk,
if (asoc)
return sctp_sched_set_sched(asoc, params.assoc_value);
+ if (sctp_style(sk, TCP))
+ params.assoc_id = SCTP_FUTURE_ASSOC;
+
if (params.assoc_id == SCTP_FUTURE_ASSOC ||
params.assoc_id == SCTP_ALL_ASSOC)
sp->default_ss = params.assoc_value;
@@ -4541,6 +4580,9 @@ static int sctp_setsockopt_event(struct sock *sk, char __user *optval,
if (asoc)
return sctp_assoc_ulpevent_type_set(&param, asoc);
+ if (sctp_style(sk, TCP))
+ param.se_assoc_id = SCTP_FUTURE_ASSOC;
+
if (param.se_assoc_id == SCTP_FUTURE_ASSOC ||
param.se_assoc_id == SCTP_ALL_ASSOC)
sctp_ulpevent_type_set(&sp->subscribe,
@@ -4808,7 +4850,8 @@ static int sctp_connect(struct sock *sk, struct sockaddr *addr,
}
/* Validate addr_len before calling common connect/connectx routine. */
- af = sctp_get_af_specific(addr->sa_family);
+ af = addr_len < offsetofend(struct sockaddr, sa_family) ? NULL :
+ sctp_get_af_specific(addr->sa_family);
if (!af || addr_len < af->sockaddr_len) {
err = -EINVAL;
} else {
@@ -8891,7 +8934,10 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
goto do_error;
if (signal_pending(current))
goto do_interrupted;
- if ((int)msg_len <= sctp_wspace(asoc))
+ if (sk_under_memory_pressure(sk))
+ sk_mem_reclaim(sk);
+ if ((int)msg_len <= sctp_wspace(asoc) &&
+ sk_wmem_schedule(sk, msg_len))
break;
/* Let another process have a go. Since we are going
@@ -9169,7 +9215,7 @@ static inline void sctp_copy_descendant(struct sock *sk_to,
{
int ancestor_size = sizeof(struct inet_sock) +
sizeof(struct sctp_sock) -
- offsetof(struct sctp_sock, auto_asconf_list);
+ offsetof(struct sctp_sock, pd_lobby);
if (sk_from->sk_family == PF_INET6)
ancestor_size += sizeof(struct ipv6_pinfo);
@@ -9253,7 +9299,6 @@ static int sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
* 2) Peeling off partial delivery; keep pd_lobby in new pd_lobby.
* 3) Peeling off non-partial delivery; move pd_lobby to receive_queue.
*/
- skb_queue_head_init(&newsp->pd_lobby);
atomic_set(&sctp_sk(newsk)->pd_mode, assoc->ulpq.pd_mode);
if (atomic_read(&sctp_sk(oldsk)->pd_mode)) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.