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authorDavid S. Miller <davem@davemloft.net>2019-11-09 11:04:37 -0800
committerDavid S. Miller <davem@davemloft.net>2019-11-09 11:04:37 -0800
commit14684b93019a2d2ece0df5acaf921924541b928d (patch)
tree29cf04da2f22b85b6051b47b3731e91a43d4c94d /net/tls
parent92da362c07d413786ab59db1665376fb63805586 (diff)
parent0058b0a506e40d9a2c62015fe92eb64a44d78cd9 (diff)
downloadlinux-14684b93019a2d2ece0df5acaf921924541b928d.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
One conflict in the BPF samples Makefile, some fixes in 'net' whilst we were converting over to Makefile.target rules in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tls')
-rw-r--r--net/tls/tls_device.c10
-rw-r--r--net/tls/tls_main.c2
-rw-r--r--net/tls/tls_sw.c30
3 files changed, 21 insertions, 21 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index 33b267b052c0..0683788bbef0 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -534,8 +534,10 @@ last_record:
int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
{
unsigned char record_type = TLS_RECORD_TYPE_DATA;
+ struct tls_context *tls_ctx = tls_get_ctx(sk);
int rc;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
if (unlikely(msg->msg_controllen)) {
@@ -549,12 +551,14 @@ int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
out:
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return rc;
}
int tls_device_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags)
{
+ struct tls_context *tls_ctx = tls_get_ctx(sk);
struct iov_iter msg_iter;
char *kaddr = kmap(page);
struct kvec iov;
@@ -563,6 +567,7 @@ int tls_device_sendpage(struct sock *sk, struct page *page,
if (flags & MSG_SENDPAGE_NOTLAST)
flags |= MSG_MORE;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
if (flags & MSG_OOB) {
@@ -579,6 +584,7 @@ int tls_device_sendpage(struct sock *sk, struct page *page,
out:
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return rc;
}
@@ -634,9 +640,11 @@ static int tls_device_push_pending_record(struct sock *sk, int flags)
void tls_device_write_space(struct sock *sk, struct tls_context *ctx)
{
- if (!sk->sk_write_pending && tls_is_partially_sent_record(ctx)) {
+ if (tls_is_partially_sent_record(ctx)) {
gfp_t sk_allocation = sk->sk_allocation;
+ WARN_ON_ONCE(sk->sk_write_pending);
+
sk->sk_allocation = GFP_ATOMIC;
tls_push_partial_record(sk, ctx,
MSG_DONTWAIT | MSG_NOSIGNAL |
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index f144b965704e..5bb93dd5762b 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -267,6 +267,7 @@ void tls_ctx_free(struct sock *sk, struct tls_context *ctx)
memzero_explicit(&ctx->crypto_send, sizeof(ctx->crypto_send));
memzero_explicit(&ctx->crypto_recv, sizeof(ctx->crypto_recv));
+ mutex_destroy(&ctx->tx_lock);
if (sk)
kfree_rcu(ctx, rcu);
@@ -627,6 +628,7 @@ struct tls_context *tls_ctx_create(struct sock *sk)
if (!ctx)
return NULL;
+ mutex_init(&ctx->tx_lock);
rcu_assign_pointer(icsk->icsk_ulp_data, ctx);
ctx->sk_proto = sk->sk_prot;
return ctx;
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index de7561d4cfa5..141da093ff04 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -902,15 +902,9 @@ int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL))
return -ENOTSUPP;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
- /* Wait till there is any pending write on socket */
- if (unlikely(sk->sk_write_pending)) {
- ret = wait_on_pending_writer(sk, &timeo);
- if (unlikely(ret))
- goto send_end;
- }
-
if (unlikely(msg->msg_controllen)) {
ret = tls_proccess_cmsg(sk, msg, &record_type);
if (ret) {
@@ -1096,6 +1090,7 @@ send_end:
ret = sk_stream_error(sk, msg->msg_flags, ret);
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return copied ? copied : ret;
}
@@ -1119,13 +1114,6 @@ static int tls_sw_do_sendpage(struct sock *sk, struct page *page,
eor = !(flags & (MSG_MORE | MSG_SENDPAGE_NOTLAST));
sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
- /* Wait till there is any pending write on socket */
- if (unlikely(sk->sk_write_pending)) {
- ret = wait_on_pending_writer(sk, &timeo);
- if (unlikely(ret))
- goto sendpage_end;
- }
-
/* Call the sk_stream functions to manage the sndbuf mem. */
while (size > 0) {
size_t copy, required_size;
@@ -1224,15 +1212,18 @@ sendpage_end:
int tls_sw_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags)
{
+ struct tls_context *tls_ctx = tls_get_ctx(sk);
int ret;
if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL |
MSG_SENDPAGE_NOTLAST | MSG_SENDPAGE_NOPOLICY))
return -ENOTSUPP;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
ret = tls_sw_do_sendpage(sk, page, offset, size, flags);
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return ret;
}
@@ -2175,9 +2166,11 @@ static void tx_work_handler(struct work_struct *work)
if (!test_and_clear_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask))
return;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
tls_tx_records(sk, -1);
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
}
void tls_sw_write_space(struct sock *sk, struct tls_context *ctx)
@@ -2185,12 +2178,9 @@ void tls_sw_write_space(struct sock *sk, struct tls_context *ctx)
struct tls_sw_context_tx *tx_ctx = tls_sw_ctx_tx(ctx);
/* Schedule the transmission if tx list is ready */
- if (is_tx_ready(tx_ctx) && !sk->sk_write_pending) {
- /* Schedule the transmission */
- if (!test_and_set_bit(BIT_TX_SCHEDULED,
- &tx_ctx->tx_bitmask))
- schedule_delayed_work(&tx_ctx->tx_work.work, 0);
- }
+ if (is_tx_ready(tx_ctx) &&
+ !test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask))
+ schedule_delayed_work(&tx_ctx->tx_work.work, 0);
}
void tls_sw_strparser_arm(struct sock *sk, struct tls_context *tls_ctx)