Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Just minor overlapping changes in the conflicts here.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2019-08-06 18:44:57 -07:00
1012 zmienionych plików z 9640 dodań i 7752 usunięć

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@@ -261,24 +261,9 @@ void tls_ctx_free(struct tls_context *ctx)
kfree(ctx);
}
static void tls_sk_proto_close(struct sock *sk, long timeout)
static void tls_sk_proto_cleanup(struct sock *sk,
struct tls_context *ctx, long timeo)
{
struct tls_context *ctx = tls_get_ctx(sk);
long timeo = sock_sndtimeo(sk, 0);
void (*sk_proto_close)(struct sock *sk, long timeout);
bool free_ctx = false;
lock_sock(sk);
sk_proto_close = ctx->sk_proto_close;
if (ctx->tx_conf == TLS_HW_RECORD && ctx->rx_conf == TLS_HW_RECORD)
goto skip_tx_cleanup;
if (ctx->tx_conf == TLS_BASE && ctx->rx_conf == TLS_BASE) {
free_ctx = true;
goto skip_tx_cleanup;
}
if (unlikely(sk->sk_write_pending) &&
!wait_on_pending_writer(sk, &timeo))
tls_handle_open_record(sk, 0);
@@ -287,7 +272,7 @@ static void tls_sk_proto_close(struct sock *sk, long timeout)
if (ctx->tx_conf == TLS_SW) {
kfree(ctx->tx.rec_seq);
kfree(ctx->tx.iv);
tls_sw_free_resources_tx(sk);
tls_sw_release_resources_tx(sk);
#ifdef CONFIG_TLS_DEVICE
} else if (ctx->tx_conf == TLS_HW) {
tls_device_free_resources_tx(sk);
@@ -295,26 +280,44 @@ static void tls_sk_proto_close(struct sock *sk, long timeout)
}
if (ctx->rx_conf == TLS_SW)
tls_sw_free_resources_rx(sk);
tls_sw_release_resources_rx(sk);
#ifdef CONFIG_TLS_DEVICE
if (ctx->rx_conf == TLS_HW)
tls_device_offload_cleanup_rx(sk);
if (ctx->tx_conf != TLS_HW && ctx->rx_conf != TLS_HW) {
#else
{
#endif
tls_ctx_free(ctx);
ctx = NULL;
}
}
skip_tx_cleanup:
static void tls_sk_proto_close(struct sock *sk, long timeout)
{
struct inet_connection_sock *icsk = inet_csk(sk);
struct tls_context *ctx = tls_get_ctx(sk);
long timeo = sock_sndtimeo(sk, 0);
bool free_ctx;
if (ctx->tx_conf == TLS_SW)
tls_sw_cancel_work_tx(ctx);
lock_sock(sk);
free_ctx = ctx->tx_conf != TLS_HW && ctx->rx_conf != TLS_HW;
if (ctx->tx_conf != TLS_BASE || ctx->rx_conf != TLS_BASE)
tls_sk_proto_cleanup(sk, ctx, timeo);
write_lock_bh(&sk->sk_callback_lock);
if (free_ctx)
icsk->icsk_ulp_data = NULL;
sk->sk_prot = ctx->sk_proto;
write_unlock_bh(&sk->sk_callback_lock);
release_sock(sk);
sk_proto_close(sk, timeout);
/* free ctx for TLS_HW_RECORD, used by tcp_set_state
* for sk->sk_prot->unhash [tls_hw_unhash]
*/
if (ctx->tx_conf == TLS_SW)
tls_sw_free_ctx_tx(ctx);
if (ctx->rx_conf == TLS_SW || ctx->rx_conf == TLS_HW)
tls_sw_strparser_done(ctx);
if (ctx->rx_conf == TLS_SW)
tls_sw_free_ctx_rx(ctx);
ctx->sk_proto_close(sk, timeout);
if (free_ctx)
tls_ctx_free(ctx);
}
@@ -526,6 +529,8 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval,
{
#endif
rc = tls_set_sw_offload(sk, ctx, 1);
if (rc)
goto err_crypto_info;
conf = TLS_SW;
}
} else {
@@ -537,13 +542,13 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval,
{
#endif
rc = tls_set_sw_offload(sk, ctx, 0);
if (rc)
goto err_crypto_info;
conf = TLS_SW;
}
tls_sw_strparser_arm(sk, ctx);
}
if (rc)
goto err_crypto_info;
if (tx)
ctx->tx_conf = conf;
else
@@ -607,6 +612,7 @@ static struct tls_context *create_ctx(struct sock *sk)
ctx->setsockopt = sk->sk_prot->setsockopt;
ctx->getsockopt = sk->sk_prot->getsockopt;
ctx->sk_proto_close = sk->sk_prot->close;
ctx->unhash = sk->sk_prot->unhash;
return ctx;
}
@@ -764,7 +770,6 @@ static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
prot[TLS_HW_RECORD][TLS_HW_RECORD] = *base;
prot[TLS_HW_RECORD][TLS_HW_RECORD].hash = tls_hw_hash;
prot[TLS_HW_RECORD][TLS_HW_RECORD].unhash = tls_hw_unhash;
prot[TLS_HW_RECORD][TLS_HW_RECORD].close = tls_sk_proto_close;
}
static int tls_init(struct sock *sk)
@@ -773,7 +778,7 @@ static int tls_init(struct sock *sk)
int rc = 0;
if (tls_hw_prot(sk))
goto out;
return 0;
/* The TLS ulp is currently supported only for TCP sockets
* in ESTABLISHED state.
@@ -784,21 +789,38 @@ static int tls_init(struct sock *sk)
if (sk->sk_state != TCP_ESTABLISHED)
return -ENOTSUPP;
tls_build_proto(sk);
/* allocate tls context */
write_lock_bh(&sk->sk_callback_lock);
ctx = create_ctx(sk);
if (!ctx) {
rc = -ENOMEM;
goto out;
}
tls_build_proto(sk);
ctx->tx_conf = TLS_BASE;
ctx->rx_conf = TLS_BASE;
ctx->sk_proto = sk->sk_prot;
update_sk_prot(sk, ctx);
out:
write_unlock_bh(&sk->sk_callback_lock);
return rc;
}
static void tls_update(struct sock *sk, struct proto *p)
{
struct tls_context *ctx;
ctx = tls_get_ctx(sk);
if (likely(ctx)) {
ctx->sk_proto_close = p->close;
ctx->sk_proto = p;
} else {
sk->sk_prot = p;
}
}
void tls_register_device(struct tls_device *device)
{
spin_lock_bh(&device_spinlock);
@@ -819,6 +841,7 @@ static struct tcp_ulp_ops tcp_tls_ulp_ops __read_mostly = {
.name = "tls",
.owner = THIS_MODULE,
.init = tls_init,
.update = tls_update,
};
static int __init tls_register(void)

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@@ -2054,7 +2054,16 @@ static void tls_data_ready(struct sock *sk)
}
}
void tls_sw_free_resources_tx(struct sock *sk)
void tls_sw_cancel_work_tx(struct tls_context *tls_ctx)
{
struct tls_sw_context_tx *ctx = tls_sw_ctx_tx(tls_ctx);
set_bit(BIT_TX_CLOSING, &ctx->tx_bitmask);
set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask);
cancel_delayed_work_sync(&ctx->tx_work.work);
}
void tls_sw_release_resources_tx(struct sock *sk)
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_sw_context_tx *ctx = tls_sw_ctx_tx(tls_ctx);
@@ -2065,11 +2074,6 @@ void tls_sw_free_resources_tx(struct sock *sk)
if (atomic_read(&ctx->encrypt_pending))
crypto_wait_req(-EINPROGRESS, &ctx->async_wait);
release_sock(sk);
cancel_delayed_work_sync(&ctx->tx_work.work);
lock_sock(sk);
/* Tx whatever records we can transmit and abandon the rest */
tls_tx_records(sk, -1);
/* Free up un-sent records in tx_list. First, free
@@ -2092,6 +2096,11 @@ void tls_sw_free_resources_tx(struct sock *sk)
crypto_free_aead(ctx->aead_send);
tls_free_open_rec(sk);
}
void tls_sw_free_ctx_tx(struct tls_context *tls_ctx)
{
struct tls_sw_context_tx *ctx = tls_sw_ctx_tx(tls_ctx);
kfree(ctx);
}
@@ -2110,23 +2119,38 @@ void tls_sw_release_resources_rx(struct sock *sk)
skb_queue_purge(&ctx->rx_list);
crypto_free_aead(ctx->aead_recv);
strp_stop(&ctx->strp);
write_lock_bh(&sk->sk_callback_lock);
sk->sk_data_ready = ctx->saved_data_ready;
write_unlock_bh(&sk->sk_callback_lock);
release_sock(sk);
strp_done(&ctx->strp);
lock_sock(sk);
/* If tls_sw_strparser_arm() was not called (cleanup paths)
* we still want to strp_stop(), but sk->sk_data_ready was
* never swapped.
*/
if (ctx->saved_data_ready) {
write_lock_bh(&sk->sk_callback_lock);
sk->sk_data_ready = ctx->saved_data_ready;
write_unlock_bh(&sk->sk_callback_lock);
}
}
}
void tls_sw_strparser_done(struct tls_context *tls_ctx)
{
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
strp_done(&ctx->strp);
}
void tls_sw_free_ctx_rx(struct tls_context *tls_ctx)
{
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
kfree(ctx);
}
void tls_sw_free_resources_rx(struct sock *sk)
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
tls_sw_release_resources_rx(sk);
kfree(ctx);
tls_sw_free_ctx_rx(tls_ctx);
}
/* The work handler to transmitt the encrypted records in tx_list */
@@ -2137,11 +2161,17 @@ static void tx_work_handler(struct work_struct *work)
struct tx_work, work);
struct sock *sk = tx_work->sk;
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_sw_context_tx *ctx = tls_sw_ctx_tx(tls_ctx);
struct tls_sw_context_tx *ctx;
if (unlikely(!tls_ctx))
return;
ctx = tls_sw_ctx_tx(tls_ctx);
if (test_bit(BIT_TX_CLOSING, &ctx->tx_bitmask))
return;
if (!test_and_clear_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask))
return;
lock_sock(sk);
tls_tx_records(sk, -1);
release_sock(sk);
@@ -2160,6 +2190,18 @@ void tls_sw_write_space(struct sock *sk, struct tls_context *ctx)
}
}
void tls_sw_strparser_arm(struct sock *sk, struct tls_context *tls_ctx)
{
struct tls_sw_context_rx *rx_ctx = tls_sw_ctx_rx(tls_ctx);
write_lock_bh(&sk->sk_callback_lock);
rx_ctx->saved_data_ready = sk->sk_data_ready;
sk->sk_data_ready = tls_data_ready;
write_unlock_bh(&sk->sk_callback_lock);
strp_check_rcv(&rx_ctx->strp);
}
int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx)
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
@@ -2357,13 +2399,6 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx)
cb.parse_msg = tls_read_size;
strp_init(&sw_ctx_rx->strp, sk, &cb);
write_lock_bh(&sk->sk_callback_lock);
sw_ctx_rx->saved_data_ready = sk->sk_data_ready;
sk->sk_data_ready = tls_data_ready;
write_unlock_bh(&sk->sk_callback_lock);
strp_check_rcv(&sw_ctx_rx->strp);
}
goto out;