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-rw-r--r--net/rxrpc/af_rxrpc.c6
-rw-r--r--net/rxrpc/ar-internal.h20
-rw-r--r--net/rxrpc/call_accept.c263
-rw-r--r--net/rxrpc/call_object.c6
-rw-r--r--net/rxrpc/conn_client.c2
-rw-r--r--net/rxrpc/conn_event.c8
-rw-r--r--net/rxrpc/input.c129
-rw-r--r--net/rxrpc/key.c20
-rw-r--r--net/rxrpc/local_object.c2
-rw-r--r--net/rxrpc/output.c82
-rw-r--r--net/rxrpc/peer_event.c2
-rw-r--r--net/rxrpc/peer_object.c16
-rw-r--r--net/rxrpc/recvmsg.c38
-rw-r--r--net/rxrpc/rtt.c3
-rw-r--r--net/rxrpc/rxkad.c3
-rw-r--r--net/rxrpc/sendmsg.c21
16 files changed, 235 insertions, 386 deletions
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index e6725a6de015..186c8a889b16 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -246,7 +246,7 @@ static int rxrpc_listen(struct socket *sock, int backlog)
ret = 0;
break;
}
- /* Fall through */
+ fallthrough;
default:
ret = -EBUSY;
break;
@@ -545,7 +545,7 @@ static int rxrpc_sendmsg(struct socket *sock, struct msghdr *m, size_t len)
rx->local = local;
rx->sk.sk_state = RXRPC_CLIENT_BOUND;
- /* Fall through */
+ fallthrough;
case RXRPC_CLIENT_BOUND:
if (!m->msg_name &&
@@ -553,7 +553,7 @@ static int rxrpc_sendmsg(struct socket *sock, struct msghdr *m, size_t len)
m->msg_name = &rx->connect_srx;
m->msg_namelen = sizeof(rx->connect_srx);
}
- /* Fall through */
+ fallthrough;
case RXRPC_SERVER_BOUND:
case RXRPC_SERVER_LISTENING:
ret = rxrpc_do_sendmsg(rx, m, len);
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 6d29a3603a3e..97aebb5d19db 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -488,7 +488,6 @@ enum rxrpc_call_flag {
RXRPC_CALL_RX_LAST, /* Received the last packet (at rxtx_top) */
RXRPC_CALL_TX_LAST, /* Last packet in Tx buffer (at rxtx_top) */
RXRPC_CALL_SEND_PING, /* A ping will need to be sent */
- RXRPC_CALL_PINGING, /* Ping in process */
RXRPC_CALL_RETRANS_TIMEOUT, /* Retransmission due to timeout occurred */
RXRPC_CALL_BEGAN_RX_TIMER, /* We began the expect_rx_by timer */
RXRPC_CALL_RX_HEARD, /* The peer responded at least once to this call */
@@ -519,7 +518,6 @@ enum rxrpc_call_state {
RXRPC_CALL_CLIENT_RECV_REPLY, /* - client receiving reply phase */
RXRPC_CALL_SERVER_PREALLOC, /* - service preallocation */
RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */
- RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */
RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */
RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */
RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */
@@ -673,9 +671,13 @@ struct rxrpc_call {
rxrpc_seq_t ackr_consumed; /* Highest packet shown consumed */
rxrpc_seq_t ackr_seen; /* Highest packet shown seen */
- /* ping management */
- rxrpc_serial_t ping_serial; /* Last ping sent */
- ktime_t ping_time; /* Time last ping sent */
+ /* RTT management */
+ rxrpc_serial_t rtt_serial[4]; /* Serial number of DATA or PING sent */
+ ktime_t rtt_sent_at[4]; /* Time packet sent */
+ unsigned long rtt_avail; /* Mask of available slots in bits 0-3,
+ * Mask of pending samples in 8-11 */
+#define RXRPC_CALL_RTT_AVAIL_MASK 0xf
+#define RXRPC_CALL_RTT_PEND_SHIFT 8
/* transmission-phase ACK management */
ktime_t acks_latest_ts; /* Timestamp of latest ACK received */
@@ -711,8 +713,8 @@ struct rxrpc_ack_summary {
enum rxrpc_command {
RXRPC_CMD_SEND_DATA, /* send data message */
RXRPC_CMD_SEND_ABORT, /* request abort generation */
- RXRPC_CMD_ACCEPT, /* [server] accept incoming call */
RXRPC_CMD_REJECT_BUSY, /* [server] reject a call as busy */
+ RXRPC_CMD_CHARGE_ACCEPT, /* [server] charge accept preallocation */
};
struct rxrpc_call_params {
@@ -752,9 +754,7 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *,
struct rxrpc_sock *,
struct sk_buff *);
void rxrpc_accept_incoming_calls(struct rxrpc_local *);
-struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long,
- rxrpc_notify_rx_t);
-int rxrpc_reject_call(struct rxrpc_sock *);
+int rxrpc_user_charge_accept(struct rxrpc_sock *, unsigned long);
/*
* call_event.c
@@ -1037,7 +1037,7 @@ static inline bool __rxrpc_abort_eproto(struct rxrpc_call *call,
/*
* rtt.c
*/
-void rxrpc_peer_add_rtt(struct rxrpc_call *, enum rxrpc_rtt_rx_trace,
+void rxrpc_peer_add_rtt(struct rxrpc_call *, enum rxrpc_rtt_rx_trace, int,
rxrpc_serial_t, rxrpc_serial_t, ktime_t, ktime_t);
unsigned long rxrpc_get_rto_backoff(struct rxrpc_peer *, bool);
void rxrpc_peer_init_rtt(struct rxrpc_peer *);
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index 032ed76c0166..8df1964db333 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -39,8 +39,9 @@ static int rxrpc_service_prealloc_one(struct rxrpc_sock *rx,
unsigned int debug_id)
{
const void *here = __builtin_return_address(0);
- struct rxrpc_call *call;
+ struct rxrpc_call *call, *xcall;
struct rxrpc_net *rxnet = rxrpc_net(sock_net(&rx->sk));
+ struct rb_node *parent, **pp;
int max, tmp;
unsigned int size = RXRPC_BACKLOG_MAX;
unsigned int head, tail, call_head, call_tail;
@@ -94,7 +95,7 @@ static int rxrpc_service_prealloc_one(struct rxrpc_sock *rx,
}
/* Now it gets complicated, because calls get registered with the
- * socket here, particularly if a user ID is preassigned by the user.
+ * socket here, with a user ID preassigned by the user.
*/
call = rxrpc_alloc_call(rx, gfp, debug_id);
if (!call)
@@ -107,34 +108,33 @@ static int rxrpc_service_prealloc_one(struct rxrpc_sock *rx,
here, (const void *)user_call_ID);
write_lock(&rx->call_lock);
- if (user_attach_call) {
- struct rxrpc_call *xcall;
- struct rb_node *parent, **pp;
-
- /* Check the user ID isn't already in use */
- pp = &rx->calls.rb_node;
- parent = NULL;
- while (*pp) {
- parent = *pp;
- xcall = rb_entry(parent, struct rxrpc_call, sock_node);
- if (user_call_ID < xcall->user_call_ID)
- pp = &(*pp)->rb_left;
- else if (user_call_ID > xcall->user_call_ID)
- pp = &(*pp)->rb_right;
- else
- goto id_in_use;
- }
- call->user_call_ID = user_call_ID;
- call->notify_rx = notify_rx;
+ /* Check the user ID isn't already in use */
+ pp = &rx->calls.rb_node;
+ parent = NULL;
+ while (*pp) {
+ parent = *pp;
+ xcall = rb_entry(parent, struct rxrpc_call, sock_node);
+ if (user_call_ID < xcall->user_call_ID)
+ pp = &(*pp)->rb_left;
+ else if (user_call_ID > xcall->user_call_ID)
+ pp = &(*pp)->rb_right;
+ else
+ goto id_in_use;
+ }
+
+ call->user_call_ID = user_call_ID;
+ call->notify_rx = notify_rx;
+ if (user_attach_call) {
rxrpc_get_call(call, rxrpc_call_got_kernel);
user_attach_call(call, user_call_ID);
- rxrpc_get_call(call, rxrpc_call_got_userid);
- rb_link_node(&call->sock_node, parent, pp);
- rb_insert_color(&call->sock_node, &rx->calls);
- set_bit(RXRPC_CALL_HAS_USERID, &call->flags);
}
+ rxrpc_get_call(call, rxrpc_call_got_userid);
+ rb_link_node(&call->sock_node, parent, pp);
+ rb_insert_color(&call->sock_node, &rx->calls);
+ set_bit(RXRPC_CALL_HAS_USERID, &call->flags);
+
list_add(&call->sock_link, &rx->sock_calls);
write_unlock(&rx->call_lock);
@@ -157,11 +157,8 @@ id_in_use:
}
/*
- * Preallocate sufficient service connections, calls and peers to cover the
- * entire backlog of a socket. When a new call comes in, if we don't have
- * sufficient of each available, the call gets rejected as busy or ignored.
- *
- * The backlog is replenished when a connection is accepted or rejected.
+ * Allocate the preallocation buffers for incoming service calls. These must
+ * be charged manually.
*/
int rxrpc_service_prealloc(struct rxrpc_sock *rx, gfp_t gfp)
{
@@ -174,13 +171,6 @@ int rxrpc_service_prealloc(struct rxrpc_sock *rx, gfp_t gfp)
rx->backlog = b;
}
- if (rx->discard_new_call)
- return 0;
-
- while (rxrpc_service_prealloc_one(rx, b, NULL, NULL, 0, gfp,
- atomic_inc_return(&rxrpc_debug_id)) == 0)
- ;
-
return 0;
}
@@ -333,6 +323,7 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx,
rxrpc_see_call(call);
call->conn = conn;
call->security = conn->security;
+ call->security_ix = conn->security_ix;
call->peer = rxrpc_get_peer(conn->params.peer);
call->cong_cwnd = call->peer->cong_cwnd;
return call;
@@ -402,8 +393,6 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local,
if (rx->notify_new_call)
rx->notify_new_call(&rx->sk, call, call->user_call_ID);
- else
- sk_acceptq_added(&rx->sk);
spin_lock(&conn->state_lock);
switch (conn->state) {
@@ -415,12 +404,8 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local,
case RXRPC_CONN_SERVICE:
write_lock(&call->state_lock);
- if (call->state < RXRPC_CALL_COMPLETE) {
- if (rx->discard_new_call)
- call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
- else
- call->state = RXRPC_CALL_SERVER_ACCEPTING;
- }
+ if (call->state < RXRPC_CALL_COMPLETE)
+ call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
write_unlock(&call->state_lock);
break;
@@ -440,9 +425,6 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local,
rxrpc_send_ping(call, skb);
- if (call->state == RXRPC_CALL_SERVER_ACCEPTING)
- rxrpc_notify_socket(call);
-
/* We have to discard the prealloc queue's ref here and rely on a
* combination of the RCU read lock and refs held either by the socket
* (recvmsg queue, to-be-accepted queue or user ID tree) or the kernel
@@ -460,187 +442,18 @@ no_call:
}
/*
- * handle acceptance of a call by userspace
- * - assign the user call ID to the call at the front of the queue
- * - called with the socket locked.
+ * Charge up socket with preallocated calls, attaching user call IDs.
*/
-struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *rx,
- unsigned long user_call_ID,
- rxrpc_notify_rx_t notify_rx)
- __releases(&rx->sk.sk_lock.slock)
- __acquires(call->user_mutex)
+int rxrpc_user_charge_accept(struct rxrpc_sock *rx, unsigned long user_call_ID)
{
- struct rxrpc_call *call;
- struct rb_node *parent, **pp;
- int ret;
-
- _enter(",%lx", user_call_ID);
-
- ASSERT(!irqs_disabled());
-
- write_lock(&rx->call_lock);
-
- if (list_empty(&rx->to_be_accepted)) {
- write_unlock(&rx->call_lock);
- release_sock(&rx->sk);
- kleave(" = -ENODATA [empty]");
- return ERR_PTR(-ENODATA);
- }
-
- /* check the user ID isn't already in use */
- pp = &rx->calls.rb_node;
- parent = NULL;
- while (*pp) {
- parent = *pp;
- call = rb_entry(parent, struct rxrpc_call, sock_node);
-
- if (user_call_ID < call->user_call_ID)
- pp = &(*pp)->rb_left;
- else if (user_call_ID > call->user_call_ID)
- pp = &(*pp)->rb_right;
- else
- goto id_in_use;
- }
-
- /* Dequeue the first call and check it's still valid. We gain
- * responsibility for the queue's reference.
- */
- call = list_entry(rx->to_be_accepted.next,
- struct rxrpc_call, accept_link);
- write_unlock(&rx->call_lock);
-
- /* We need to gain the mutex from the interrupt handler without
- * upsetting lockdep, so we have to release it there and take it here.
- * We are, however, still holding the socket lock, so other accepts
- * must wait for us and no one can add the user ID behind our backs.
- */
- if (mutex_lock_interruptible(&call->user_mutex) < 0) {
- release_sock(&rx->sk);
- kleave(" = -ERESTARTSYS");
- return ERR_PTR(-ERESTARTSYS);
- }
-
- write_lock(&rx->call_lock);
- list_del_init(&call->accept_link);
- sk_acceptq_removed(&rx->sk);
- rxrpc_see_call(call);
-
- /* Find the user ID insertion point. */
- pp = &rx->calls.rb_node;
- parent = NULL;
- while (*pp) {
- parent = *pp;
- call = rb_entry(parent, struct rxrpc_call, sock_node);
-
- if (user_call_ID < call->user_call_ID)
- pp = &(*pp)->rb_left;
- else if (user_call_ID > call->user_call_ID)
- pp = &(*pp)->rb_right;
- else
- BUG();
- }
-
- write_lock_bh(&call->state_lock);
- switch (call->state) {
- case RXRPC_CALL_SERVER_ACCEPTING:
- call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
- break;
- case RXRPC_CALL_COMPLETE:
- ret = call->error;
- goto out_release;
- default:
- BUG();
- }
-
- /* formalise the acceptance */
- call->notify_rx = notify_rx;
- call->user_call_ID = user_call_ID;
- rxrpc_get_call(call, rxrpc_call_got_userid);
- rb_link_node(&call->sock_node, parent, pp);
- rb_insert_color(&call->sock_node, &rx->calls);
- if (test_and_set_bit(RXRPC_CALL_HAS_USERID, &call->flags))
- BUG();
-
- write_unlock_bh(&call->state_lock);
- write_unlock(&rx->call_lock);
- rxrpc_notify_socket(call);
- rxrpc_service_prealloc(rx, GFP_KERNEL);
- release_sock(&rx->sk);
- _leave(" = %p{%d}", call, call->debug_id);
- return call;
-
-out_release:
- _debug("release %p", call);
- write_unlock_bh(&call->state_lock);
- write_unlock(&rx->call_lock);
- rxrpc_release_call(rx, call);
- rxrpc_put_call(call, rxrpc_call_put);
- goto out;
-
-id_in_use:
- ret = -EBADSLT;
- write_unlock(&rx->call_lock);
-out:
- rxrpc_service_prealloc(rx, GFP_KERNEL);
- release_sock(&rx->sk);
- _leave(" = %d", ret);
- return ERR_PTR(ret);
-}
-
-/*
- * Handle rejection of a call by userspace
- * - reject the call at the front of the queue
- */
-int rxrpc_reject_call(struct rxrpc_sock *rx)
-{
- struct rxrpc_call *call;
- bool abort = false;
- int ret;
-
- _enter("");
-
- ASSERT(!irqs_disabled());
-
- write_lock(&rx->call_lock);
-
- if (list_empty(&rx->to_be_accepted)) {
- write_unlock(&rx->call_lock);
- return -ENODATA;
- }
-
- /* Dequeue the first call and check it's still valid. We gain
- * responsibility for the queue's reference.
- */
- call = list_entry(rx->to_be_accepted.next,
- struct rxrpc_call, accept_link);
- list_del_init(&call->accept_link);
- sk_acceptq_removed(&rx->sk);
- rxrpc_see_call(call);
+ struct rxrpc_backlog *b = rx->backlog;
- write_lock_bh(&call->state_lock);
- switch (call->state) {
- case RXRPC_CALL_SERVER_ACCEPTING:
- __rxrpc_abort_call("REJ", call, 1, RX_USER_ABORT, -ECONNABORTED);
- abort = true;
- /* fall through */
- case RXRPC_CALL_COMPLETE:
- ret = call->error;
- goto out_discard;
- default:
- BUG();
- }
+ if (rx->sk.sk_state == RXRPC_CLOSE)
+ return -ESHUTDOWN;
-out_discard:
- write_unlock_bh(&call->state_lock);
- write_unlock(&rx->call_lock);
- if (abort) {
- rxrpc_send_abort_packet(call);
- rxrpc_release_call(rx, call);
- rxrpc_put_call(call, rxrpc_call_put);
- }
- rxrpc_service_prealloc(rx, GFP_KERNEL);
- _leave(" = %d", ret);
- return ret;
+ return rxrpc_service_prealloc_one(rx, b, NULL, NULL, user_call_ID,
+ GFP_KERNEL,
+ atomic_inc_return(&rxrpc_debug_id));
}
/*
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 38a46167523f..ed49769b459d 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -23,7 +23,6 @@ const char *const rxrpc_call_states[NR__RXRPC_CALL_STATES] = {
[RXRPC_CALL_CLIENT_RECV_REPLY] = "ClRcvRpl",
[RXRPC_CALL_SERVER_PREALLOC] = "SvPrealc",
[RXRPC_CALL_SERVER_SECURING] = "SvSecure",
- [RXRPC_CALL_SERVER_ACCEPTING] = "SvAccept",
[RXRPC_CALL_SERVER_RECV_REQUEST] = "SvRcvReq",
[RXRPC_CALL_SERVER_ACK_REQUEST] = "SvAckReq",
[RXRPC_CALL_SERVER_SEND_REPLY] = "SvSndRpl",
@@ -153,6 +152,7 @@ struct rxrpc_call *rxrpc_alloc_call(struct rxrpc_sock *rx, gfp_t gfp,
call->cong_ssthresh = RXRPC_RXTX_BUFF_SIZE - 1;
call->rxnet = rxnet;
+ call->rtt_avail = RXRPC_CALL_RTT_AVAIL_MASK;
atomic_inc(&rxnet->nr_calls);
return call;
@@ -351,9 +351,7 @@ void rxrpc_incoming_call(struct rxrpc_sock *rx,
call->call_id = sp->hdr.callNumber;
call->service_id = sp->hdr.serviceId;
call->cid = sp->hdr.cid;
- call->state = RXRPC_CALL_SERVER_ACCEPTING;
- if (sp->hdr.securityIndex > 0)
- call->state = RXRPC_CALL_SERVER_SECURING;
+ call->state = RXRPC_CALL_SERVER_SECURING;
call->cong_tstamp = skb->tstamp;
/* Set the channel for this call. We don't get channel_lock as we're
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index f2a1a5dbb5a7..159e3eda7914 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -881,7 +881,7 @@ void rxrpc_disconnect_client_call(struct rxrpc_call *call)
conn->cache_state = RXRPC_CONN_CLIENT_ACTIVE;
rxrpc_activate_channels_locked(conn);
}
- /* fall through */
+ fallthrough;
case RXRPC_CONN_CLIENT_ACTIVE:
if (list_empty(&conn->waiting_calls)) {
rxrpc_deactivate_one_channel(conn, channel);
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c
index 447f55ca6886..64ace2960ecc 100644
--- a/net/rxrpc/conn_event.c
+++ b/net/rxrpc/conn_event.c
@@ -269,7 +269,7 @@ static void rxrpc_call_is_secure(struct rxrpc_call *call)
if (call) {
write_lock_bh(&call->state_lock);
if (call->state == RXRPC_CALL_SERVER_SECURING) {
- call->state = RXRPC_CALL_SERVER_ACCEPTING;
+ call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
rxrpc_notify_socket(call);
}
write_unlock_bh(&call->state_lock);
@@ -340,18 +340,18 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
return ret;
spin_lock(&conn->channel_lock);
- spin_lock(&conn->state_lock);
+ spin_lock_bh(&conn->state_lock);
if (conn->state == RXRPC_CONN_SERVICE_CHALLENGING) {
conn->state = RXRPC_CONN_SERVICE;
- spin_unlock(&conn->state_lock);
+ spin_unlock_bh(&conn->state_lock);
for (loop = 0; loop < RXRPC_MAXCALLS; loop++)
rxrpc_call_is_secure(
rcu_dereference_protected(
conn->channels[loop].call,
lockdep_is_held(&conn->channel_lock)));
} else {
- spin_unlock(&conn->state_lock);
+ spin_unlock_bh(&conn->state_lock);
}
spin_unlock(&conn->channel_lock);
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 767579328a06..667c44aa5a63 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -608,36 +608,57 @@ unlock:
}
/*
- * Process a requested ACK.
+ * See if there's a cached RTT probe to complete.
*/
-static void rxrpc_input_requested_ack(struct rxrpc_call *call,
- ktime_t resp_time,
- rxrpc_serial_t orig_serial,
- rxrpc_serial_t ack_serial)
+static void rxrpc_complete_rtt_probe(struct rxrpc_call *call,
+ ktime_t resp_time,
+ rxrpc_serial_t acked_serial,
+ rxrpc_serial_t ack_serial,
+ enum rxrpc_rtt_rx_trace type)
{
- struct rxrpc_skb_priv *sp;
- struct sk_buff *skb;
+ rxrpc_serial_t orig_serial;
+ unsigned long avail;
ktime_t sent_at;
- int ix;
+ bool matched = false;
+ int i;
- for (ix = 0; ix < RXRPC_RXTX_BUFF_SIZE; ix++) {
- skb = call->rxtx_buffer[ix];
- if (!skb)
- continue;
+ avail = READ_ONCE(call->rtt_avail);
+ smp_rmb(); /* Read avail bits before accessing data. */
- sent_at = skb->tstamp;
- smp_rmb(); /* Read timestamp before serial. */
- sp = rxrpc_skb(skb);
- if (sp->hdr.serial != orig_serial)
+ for (i = 0; i < ARRAY_SIZE(call->rtt_serial); i++) {
+ if (!test_bit(i + RXRPC_CALL_RTT_PEND_SHIFT, &avail))
continue;
- goto found;
- }
- return;
+ sent_at = call->rtt_sent_at[i];
+ orig_serial = call->rtt_serial[i];
+
+ if (orig_serial == acked_serial) {
+ clear_bit(i + RXRPC_CALL_RTT_PEND_SHIFT, &call->rtt_avail);
+ smp_mb(); /* Read data before setting avail bit */
+ set_bit(i, &call->rtt_avail);
+ if (type != rxrpc_rtt_rx_cancel)
+ rxrpc_peer_add_rtt(call, type, i, acked_serial, ack_serial,
+ sent_at, resp_time);
+ else
+ trace_rxrpc_rtt_rx(call, rxrpc_rtt_rx_cancel, i,
+ orig_serial, acked_serial, 0, 0);
+ matched = true;
+ }
+
+ /* If a later serial is being acked, then mark this slot as
+ * being available.
+ */
+ if (after(acked_serial, orig_serial)) {
+ trace_rxrpc_rtt_rx(call, rxrpc_rtt_rx_obsolete, i,
+ orig_serial, acked_serial, 0, 0);
+ clear_bit(i + RXRPC_CALL_RTT_PEND_SHIFT, &call->rtt_avail);
+ smp_wmb();
+ set_bit(i, &call->rtt_avail);
+ }
+ }
-found:
- rxrpc_peer_add_rtt(call, rxrpc_rtt_rx_requested_ack,
- orig_serial, ack_serial, sent_at, resp_time);
+ if (!matched)
+ trace_rxrpc_rtt_rx(call, rxrpc_rtt_rx_lost, 9, 0, acked_serial, 0, 0);
}
/*
@@ -682,27 +703,11 @@ static void rxrpc_input_check_for_lost_ack(struct rxrpc_call *call)
*/
static void rxrpc_input_ping_response(struct rxrpc_call *call,
ktime_t resp_time,
- rxrpc_serial_t orig_serial,
+ rxrpc_serial_t acked_serial,
rxrpc_serial_t ack_serial)
{
- rxrpc_serial_t ping_serial;
- ktime_t ping_time;
-
- ping_time = call->ping_time;
- smp_rmb();
- ping_serial = READ_ONCE(call->ping_serial);
-
- if (orig_serial == call->acks_lost_ping)
+ if (acked_serial == call->acks_lost_ping)
rxrpc_input_check_for_lost_ack(call);
-
- if (before(orig_serial, ping_serial) ||
- !test_and_clear_bit(RXRPC_CALL_PINGING, &call->flags))
- return;
- if (after(orig_serial, ping_serial))
- return;
-
- rxrpc_peer_add_rtt(call, rxrpc_rtt_rx_ping_response,
- orig_serial, ack_serial, ping_time, resp_time);
}
/*
@@ -843,7 +848,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
struct rxrpc_ackinfo info;
u8 acks[RXRPC_MAXACKS];
} buf;
- rxrpc_serial_t acked_serial;
+ rxrpc_serial_t ack_serial, acked_serial;
rxrpc_seq_t first_soft_ack, hard_ack, prev_pkt;
int nr_acks, offset, ioffset;
@@ -856,6 +861,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
}
offset += sizeof(buf.ack);
+ ack_serial = sp->hdr.serial;
acked_serial = ntohl(buf.ack.serial);
first_soft_ack = ntohl(buf.ack.firstPacket);
prev_pkt = ntohl(buf.ack.previousPacket);
@@ -864,31 +870,42 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
summary.ack_reason = (buf.ack.reason < RXRPC_ACK__INVALID ?
buf.ack.reason : RXRPC_ACK__INVALID);
- trace_rxrpc_rx_ack(call, sp->hdr.serial, acked_serial,
+ trace_rxrpc_rx_ack(call, ack_serial, acked_serial,
first_soft_ack, prev_pkt,
summary.ack_reason, nr_acks);
- if (buf.ack.reason == RXRPC_ACK_PING_RESPONSE)
+ switch (buf.ack.reason) {
+ case RXRPC_ACK_PING_RESPONSE:
rxrpc_input_ping_response(call, skb->tstamp, acked_serial,
- sp->hdr.serial);
- if (buf.ack.reason == RXRPC_ACK_REQUESTED)
- rxrpc_input_requested_ack(call, skb->tstamp, acked_serial,
- sp->hdr.serial);
+ ack_serial);
+ rxrpc_complete_rtt_probe(call, skb->tstamp, acked_serial, ack_serial,
+ rxrpc_rtt_rx_ping_response);
+ break;
+ case RXRPC_ACK_REQUESTED:
+ rxrpc_complete_rtt_probe(call, skb->tstamp, acked_serial, ack_serial,
+ rxrpc_rtt_rx_requested_ack);
+ break;
+ default:
+ if (acked_serial != 0)
+ rxrpc_complete_rtt_probe(call, skb->tstamp, acked_serial, ack_serial,
+ rxrpc_rtt_rx_cancel);
+ break;
+ }
if (buf.ack.reason == RXRPC_ACK_PING) {
- _proto("Rx ACK %%%u PING Request", sp->hdr.serial);
+ _proto("Rx ACK %%%u PING Request", ack_serial);
rxrpc_propose_ACK(call, RXRPC_ACK_PING_RESPONSE,
- sp->hdr.serial, true, true,
+ ack_serial, true, true,
rxrpc_propose_ack_respond_to_ping);
} else if (sp->hdr.flags & RXRPC_REQUEST_ACK) {
rxrpc_propose_ACK(call, RXRPC_ACK_REQUESTED,
- sp->hdr.serial, true, true,
+ ack_serial, true, true,
rxrpc_propose_ack_respond_to_ack);
}
/* Discard any out-of-order or duplicate ACKs (outside lock). */
if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
- trace_rxrpc_rx_discard_ack(call->debug_id, sp->hdr.serial,
+ trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
first_soft_ack, call->ackr_first_seq,
prev_pkt, call->ackr_prev_seq);
return;
@@ -904,7 +921,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
/* Discard any out-of-order or duplicate ACKs (inside lock). */
if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
- trace_rxrpc_rx_discard_ack(call->debug_id, sp->hdr.serial,
+ trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
first_soft_ack, call->ackr_first_seq,
prev_pkt, call->ackr_prev_seq);
goto out;
@@ -964,7 +981,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
RXRPC_TX_ANNO_LAST &&
summary.nr_acks == call->tx_top - hard_ack &&
rxrpc_is_client_call(call))
- rxrpc_propose_ACK(call, RXRPC_ACK_PING, sp->hdr.serial,
+ rxrpc_propose_ACK(call, RXRPC_ACK_PING, ack_serial,
false, true,
rxrpc_propose_ack_ping_for_lost_reply);
@@ -1084,7 +1101,7 @@ static void rxrpc_input_implicit_end_call(struct rxrpc_sock *rx,
switch (READ_ONCE(call->state)) {
case RXRPC_CALL_SERVER_AWAIT_ACK:
rxrpc_call_completed(call);
- /* Fall through */
+ fallthrough;
case RXRPC_CALL_COMPLETE:
break;
default:
@@ -1243,12 +1260,12 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb)
case RXRPC_PACKET_TYPE_BUSY:
if (rxrpc_to_server(sp))
goto discard;
- /* Fall through */
+ fallthrough;
case RXRPC_PACKET_TYPE_ACK:
case RXRPC_PACKET_TYPE_ACKALL:
if (sp->hdr.callNumber == 0)
goto bad_message;
- /* Fall through */
+ fallthrough;
case RXRPC_PACKET_TYPE_ABORT:
break;
diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c
index 94c3df392651..2e8bd3b97301 100644
--- a/net/rxrpc/key.c
+++ b/net/rxrpc/key.c
@@ -903,7 +903,7 @@ int rxrpc_request_key(struct rxrpc_sock *rx, sockptr_t optval, int optlen)
_enter("");
- if (optlen <= 0 || optlen > PAGE_SIZE - 1)
+ if (optlen <= 0 || optlen > PAGE_SIZE - 1 || rx->securities)
return -EINVAL;
description = memdup_sockptr_nul(optval, optlen);
@@ -940,7 +940,7 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, sockptr_t optval, int optlen)
if (IS_ERR(description))
return PTR_ERR(description);
- key = request_key_net(&key_type_keyring, description, sock_net(&rx->sk), NULL);
+ key = request_key(&key_type_keyring, description, NULL);
if (IS_ERR(key)) {
kfree(description);
_leave(" = %ld", PTR_ERR(key));
@@ -1072,7 +1072,7 @@ static long rxrpc_read(const struct key *key,
switch (token->security_index) {
case RXRPC_SECURITY_RXKAD:
- toksize += 9 * 4; /* viceid, kvno, key*2 + len, begin,
+ toksize += 8 * 4; /* viceid, kvno, key*2, begin,
* end, primary, tktlen */
toksize += RND(token->kad->ticket_len);
break;
@@ -1107,7 +1107,8 @@ static long rxrpc_read(const struct key *key,
break;
default: /* we have a ticket we can't encode */
- BUG();
+ pr_err("Unsupported key token type (%u)\n",
+ token->security_index);
continue;
}
@@ -1138,6 +1139,14 @@ static long rxrpc_read(const struct key *key,
memcpy((u8 *)xdr + _l, &zero, 4 - (_l & 3)); \
xdr += (_l + 3) >> 2; \
} while(0)
+#define ENCODE_BYTES(l, s) \
+ do { \
+ u32 _l = (l); \
+ memcpy(xdr, (s), _l); \
+ if (_l & 3) \
+ memcpy((u8 *)xdr + _l, &zero, 4 - (_l & 3)); \
+ xdr += (_l + 3) >> 2; \
+ } while(0)
#define ENCODE64(x) \
do { \
__be64 y = cpu_to_be64(x); \
@@ -1165,7 +1174,7 @@ static long rxrpc_read(const struct key *key,
case RXRPC_SECURITY_RXKAD:
ENCODE(token->kad->vice_id);
ENCODE(token->kad->kvno);
- ENCODE_DATA(8, token->kad->session_key);
+ ENCODE_BYTES(8, token->kad->session_key);
ENCODE(token->kad->start);
ENCODE(token->kad->expiry);
ENCODE(token->kad->primary_flag);
@@ -1215,7 +1224,6 @@ static long rxrpc_read(const struct key *key,
break;
default:
- BUG();
break;
}
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index c8b2097f499c..ede058f9cc15 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -162,7 +162,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
/* Fall through and set IPv4 options too otherwise we don't get
* errors from IPv4 packets sent through the IPv6 socket.
*/
- /* Fall through */
+ fallthrough;
case AF_INET:
/* we want to receive ICMP errors */
ip_sock_set_recverr(local->socket->sk);
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 1ba43c3df4ad..3cfff7922ba8 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -124,6 +124,49 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_connection *conn,
}
/*
+ * Record the beginning of an RTT probe.
+ */
+static int rxrpc_begin_rtt_probe(struct rxrpc_call *call, rxrpc_serial_t serial,
+ enum rxrpc_rtt_tx_trace why)
+{
+ unsigned long avail = call->rtt_avail;
+ int rtt_slot = 9;
+
+ if (!(avail & RXRPC_CALL_RTT_AVAIL_MASK))
+ goto no_slot;
+
+ rtt_slot = __ffs(avail & RXRPC_CALL_RTT_AVAIL_MASK);
+ if (!test_and_clear_bit(rtt_slot, &call->rtt_avail))
+ goto no_slot;
+
+ call->rtt_serial[rtt_slot] = serial;
+ call->rtt_sent_at[rtt_slot] = ktime_get_real();
+ smp_wmb(); /* Write data before avail bit */
+ set_bit(rtt_slot + RXRPC_CALL_RTT_PEND_SHIFT, &call->rtt_avail);
+
+ trace_rxrpc_rtt_tx(call, why, rtt_slot, serial);
+ return rtt_slot;
+
+no_slot:
+ trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_no_slot, rtt_slot, serial);
+ return -1;
+}
+
+/*
+ * Cancel an RTT probe.
+ */
+static void rxrpc_cancel_rtt_probe(struct rxrpc_call *call,
+ rxrpc_serial_t serial, int rtt_slot)
+{
+ if (rtt_slot != -1) {
+ clear_bit(rtt_slot + RXRPC_CALL_RTT_PEND_SHIFT, &call->rtt_avail);
+ smp_wmb(); /* Clear pending bit before setting slot */
+ set_bit(rtt_slot, &call->rtt_avail);
+ trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_cancel, rtt_slot, serial);
+ }
+}
+
+/*
* Send an ACK call packet.
*/
int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
@@ -136,7 +179,7 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
rxrpc_serial_t serial;
rxrpc_seq_t hard_ack, top;
size_t len, n;
- int ret;
+ int ret, rtt_slot = -1;
u8 reason;
if (test_bit(RXRPC_CALL_DISCONNECTED, &call->flags))
@@ -196,18 +239,8 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
if (_serial)
*_serial = serial;
- if (ping) {
- call->ping_serial = serial;
- smp_wmb();
- /* We need to stick a time in before we send the packet in case
- * the reply gets back before kernel_sendmsg() completes - but
- * asking UDP to send the packet can take a relatively long
- * time.
- */
- call->ping_time = ktime_get_real();
- set_bit(RXRPC_CALL_PINGING, &call->flags);
- trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_ping, serial);
- }
+ if (ping)
+ rtt_slot = rxrpc_begin_rtt_probe(call, serial, rxrpc_rtt_tx_ping);
ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len);
conn->params.peer->last_tx_at = ktime_get_seconds();
@@ -221,8 +254,7 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
if (call->state < RXRPC_CALL_COMPLETE) {
if (ret < 0) {
- if (ping)
- clear_bit(RXRPC_CALL_PINGING, &call->flags);
+ rxrpc_cancel_rtt_probe(call, serial, rtt_slot);
rxrpc_propose_ACK(call, pkt->ack.reason,
ntohl(pkt->ack.serial),
false, true,
@@ -321,7 +353,7 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
struct kvec iov[2];
rxrpc_serial_t serial;
size_t len;
- int ret;
+ int ret, rtt_slot = -1;
_enter(",{%d}", skb->len);
@@ -397,6 +429,8 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
sp->hdr.serial = serial;
smp_wmb(); /* Set serial before timestamp */
skb->tstamp = ktime_get_real();
+ if (whdr.flags & RXRPC_REQUEST_ACK)
+ rtt_slot = rxrpc_begin_rtt_probe(call, serial, rxrpc_rtt_tx_data);
/* send the packet by UDP
* - returns -EMSGSIZE if UDP would have to fragment the packet
@@ -408,12 +442,15 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
conn->params.peer->last_tx_at = ktime_get_seconds();
up_read(&conn->params.local->defrag_sem);
- if (ret < 0)
+ if (ret < 0) {
+ rxrpc_cancel_rtt_probe(call, serial, rtt_slot);
trace_rxrpc_tx_fail(call->debug_id, serial, ret,
rxrpc_tx_point_call_data_nofrag);
- else
+ } else {
trace_rxrpc_tx_packet(call->debug_id, &whdr,
rxrpc_tx_point_call_data_nofrag);
+ }
+
rxrpc_tx_backoff(call, ret);
if (ret == -EMSGSIZE)
goto send_fragmentable;
@@ -422,7 +459,6 @@ done:
if (ret >= 0) {
if (whdr.flags & RXRPC_REQUEST_ACK) {
call->peer->rtt_last_req = skb->tstamp;
- trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_data, serial);
if (call->peer->rtt_count > 1) {
unsigned long nowj = jiffies, ack_lost_at;
@@ -469,6 +505,8 @@ send_fragmentable:
sp->hdr.serial = serial;
smp_wmb(); /* Set serial before timestamp */
skb->tstamp = ktime_get_real();
+ if (whdr.flags & RXRPC_REQUEST_ACK)
+ rtt_slot = rxrpc_begin_rtt_probe(call, serial, rxrpc_rtt_tx_data);
switch (conn->params.local->srx.transport.family) {
case AF_INET6:
@@ -487,12 +525,14 @@ send_fragmentable:
BUG();
}
- if (ret < 0)
+ if (ret < 0) {
+ rxrpc_cancel_rtt_probe(call, serial, rtt_slot);
trace_rxrpc_tx_fail(call->debug_id, serial, ret,
rxrpc_tx_point_call_data_frag);
- else
+ } else {
trace_rxrpc_tx_packet(call->debug_id, &whdr,
rxrpc_tx_point_call_data_frag);
+ }
rxrpc_tx_backoff(call, ret);
up_write(&conn->params.local->defrag_sem);
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c
index a852f46d5234..be032850ae8c 100644
--- a/net/rxrpc/peer_event.c
+++ b/net/rxrpc/peer_event.c
@@ -273,7 +273,7 @@ static void rxrpc_store_error(struct rxrpc_peer *peer,
case SO_EE_ORIGIN_ICMP6:
if (err == EACCES)
err = EHOSTUNREACH;
- /* Fall through */
+ fallthrough;
default:
_proto("Rx Received error report { orig=%u }", ee->ee_origin);
break;
diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c
index ca29976bb193..68396d052052 100644
--- a/net/rxrpc/peer_object.c
+++ b/net/rxrpc/peer_object.c
@@ -502,11 +502,21 @@ EXPORT_SYMBOL(rxrpc_kernel_get_peer);
* rxrpc_kernel_get_srtt - Get a call's peer smoothed RTT
* @sock: The socket on which the call is in progress.
* @call: The call to query
+ * @_srtt: Where to store the SRTT value.
*
- * Get the call's peer smoothed RTT.
+ * Get the call's peer smoothed RTT in uS.
*/
-u32 rxrpc_kernel_get_srtt(struct socket *sock, struct rxrpc_call *call)
+bool rxrpc_kernel_get_srtt(struct socket *sock, struct rxrpc_call *call,
+ u32 *_srtt)
{
- return call->peer->srtt_us >> 3;
+ struct rxrpc_peer *peer = call->peer;
+
+ if (peer->rtt_count == 0) {
+ *_srtt = 1000000; /* 1S */
+ return false;
+ }
+
+ *_srtt = call->peer->srtt_us >> 3;
+ return true;
}
EXPORT_SYMBOL(rxrpc_kernel_get_srtt);
diff --git a/net/rxrpc/recvmsg.c b/net/rxrpc/recvmsg.c
index efecc5a8f67d..2c842851d72e 100644
--- a/net/rxrpc/recvmsg.c
+++ b/net/rxrpc/recvmsg.c
@@ -179,37 +179,6 @@ static int rxrpc_recvmsg_term(struct rxrpc_call *call, struct msghdr *msg)
}
/*
- * Pass back notification of a new call. The call is added to the
- * to-be-accepted list. This means that the next call to be accepted might not
- * be the last call seen awaiting acceptance, but unless we leave this on the
- * front of the queue and block all other messages until someone gives us a
- * user_ID for it, there's not a lot we can do.
- */
-static int rxrpc_recvmsg_new_call(struct rxrpc_sock *rx,
- struct rxrpc_call *call,
- struct msghdr *msg, int flags)
-{
- int tmp = 0, ret;
-
- ret = put_cmsg(msg, SOL_RXRPC, RXRPC_NEW_CALL, 0, &tmp);
-
- if (ret == 0 && !(flags & MSG_PEEK)) {
- _debug("to be accepted");
- write_lock_bh(&rx->recvmsg_lock);
- list_del_init(&call->recvmsg_link);
- write_unlock_bh(&rx->recvmsg_lock);
-
- rxrpc_get_call(call, rxrpc_call_got);
- write_lock(&rx->call_lock);
- list_add_tail(&call->accept_link, &rx->to_be_accepted);
- write_unlock(&rx->call_lock);
- }
-
- trace_rxrpc_recvmsg(call, rxrpc_recvmsg_to_be_accepted, 1, 0, 0, ret);
- return ret;
-}
-
-/*
* End the packet reception phase.
*/
static void rxrpc_end_rx_phase(struct rxrpc_call *call, rxrpc_serial_t serial)
@@ -630,9 +599,6 @@ try_again:
}
switch (READ_ONCE(call->state)) {
- case RXRPC_CALL_SERVER_ACCEPTING:
- ret = rxrpc_recvmsg_new_call(rx, call, msg, flags);
- break;
case RXRPC_CALL_CLIENT_RECV_REPLY:
case RXRPC_CALL_SERVER_RECV_REQUEST:
case RXRPC_CALL_SERVER_ACK_REQUEST:
@@ -728,7 +694,7 @@ int rxrpc_kernel_recv_data(struct socket *sock, struct rxrpc_call *call,
call->debug_id, rxrpc_call_states[call->state],
iov_iter_count(iter), want_more);
- ASSERTCMP(call->state, !=, RXRPC_CALL_SERVER_ACCEPTING);
+ ASSERTCMP(call->state, !=, RXRPC_CALL_SERVER_SECURING);
mutex_lock(&call->user_mutex);
@@ -776,7 +742,7 @@ out:
case RXRPC_ACK_DELAY:
if (ret != -EAGAIN)
break;
- /* Fall through */
+ fallthrough;
default:
rxrpc_send_ack_packet(call, false, NULL);
}
diff --git a/net/rxrpc/rtt.c b/net/rxrpc/rtt.c
index 928d8b34a3ee..1221b0637a7e 100644
--- a/net/rxrpc/rtt.c
+++ b/net/rxrpc/rtt.c
@@ -146,6 +146,7 @@ static void rxrpc_ack_update_rtt(struct rxrpc_peer *peer, long rtt_us)
* exclusive access to the peer RTT data.
*/
void rxrpc_peer_add_rtt(struct rxrpc_call *call, enum rxrpc_rtt_rx_trace why,
+ int rtt_slot,
rxrpc_serial_t send_serial, rxrpc_serial_t resp_serial,
ktime_t send_time, ktime_t resp_time)
{
@@ -162,7 +163,7 @@ void rxrpc_peer_add_rtt(struct rxrpc_call *call, enum rxrpc_rtt_rx_trace why,
peer->rtt_count++;
spin_unlock(&peer->rtt_input_lock);
- trace_rxrpc_rtt_rx(call, why, send_serial, resp_serial,
+ trace_rxrpc_rtt_rx(call, why, rtt_slot, send_serial, resp_serial,
peer->srtt_us >> 3, peer->rto_j);
}
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index 52a24d4ef5d8..e08130e5746b 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -1137,7 +1137,7 @@ static int rxkad_verify_response(struct rxrpc_connection *conn,
ret = -ENOMEM;
ticket = kmalloc(ticket_len, GFP_NOFS);
if (!ticket)
- goto temporary_error;
+ goto temporary_error_free_resp;
eproto = tracepoint_string("rxkad_tkt_short");
abort_code = RXKADPACKETSHORT;
@@ -1230,6 +1230,7 @@ protocol_error:
temporary_error_free_ticket:
kfree(ticket);
+temporary_error_free_resp:
kfree(response);
temporary_error:
/* Ignore the response packet if we got a temporary error such as
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index f3f6da6e4ad2..d27140c836cc 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -241,7 +241,7 @@ static int rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call,
trace_rxrpc_timer(call, rxrpc_timer_init_for_send_reply, now);
if (!last)
break;
- /* Fall through */
+ fallthrough;
case RXRPC_CALL_SERVER_SEND_REPLY:
call->state = RXRPC_CALL_SERVER_AWAIT_ACK;
rxrpc_notify_end_tx(rx, call, notify_end_tx);
@@ -530,10 +530,10 @@ static int rxrpc_sendmsg_cmsg(struct msghdr *msg, struct rxrpc_send_params *p)
return -EINVAL;
break;
- case RXRPC_ACCEPT:
+ case RXRPC_CHARGE_ACCEPT:
if (p->command != RXRPC_CMD_SEND_DATA)
return -EINVAL;
- p->command = RXRPC_CMD_ACCEPT;
+ p->command = RXRPC_CMD_CHARGE_ACCEPT;
if (len != 0)
return -EINVAL;
break;
@@ -659,16 +659,12 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
if (ret < 0)
goto error_release_sock;
- if (p.command == RXRPC_CMD_ACCEPT) {
+ if (p.command == RXRPC_CMD_CHARGE_ACCEPT) {
ret = -EINVAL;
if (rx->sk.sk_state != RXRPC_SERVER_LISTENING)
goto error_release_sock;
- call = rxrpc_accept_call(rx, p.call.user_call_ID, NULL);
- /* The socket is now unlocked. */
- if (IS_ERR(call))
- return PTR_ERR(call);
- ret = 0;
- goto out_put_unlock;
+ ret = rxrpc_user_charge_accept(rx, p.call.user_call_ID);
+ goto error_release_sock;
}
call = rxrpc_find_call_by_user_ID(rx, p.call.user_call_ID);
@@ -690,7 +686,6 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
case RXRPC_CALL_CLIENT_AWAIT_CONN:
case RXRPC_CALL_SERVER_PREALLOC:
case RXRPC_CALL_SERVER_SECURING:
- case RXRPC_CALL_SERVER_ACCEPTING:
rxrpc_put_call(call, rxrpc_call_put);
ret = -EBUSY;
goto error_release_sock;
@@ -721,13 +716,13 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
if (p.call.timeouts.normal > 0 && j == 0)
j = 1;
WRITE_ONCE(call->next_rx_timo, j);
- /* Fall through */
+ fallthrough;
case 2:
j = msecs_to_jiffies(p.call.timeouts.idle);
if (p.call.timeouts.idle > 0 && j == 0)
j = 1;
WRITE_ONCE(call->next_req_timo, j);
- /* Fall through */
+ fallthrough;
case 1:
if (p.call.timeouts.hard > 0) {
j = msecs_to_jiffies(p.call.timeouts.hard);
generated by cgit (git 2.34.1) at 2024-06-09 16:24:35 +0000