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Diffstat (limited to 'net/tls/tls_device.c')
-rw-r--r--net/tls/tls_device.c110
1 files changed, 47 insertions, 63 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index bf69c9d6d06c..2021fe557e50 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -268,9 +268,8 @@ static void tls_append_frag(struct tls_record_info *record,
skb_frag_size_add(frag, size);
} else {
++frag;
- __skb_frag_set_page(frag, pfrag->page);
- skb_frag_off_set(frag, pfrag->offset);
- skb_frag_size_set(frag, size);
+ skb_frag_fill_page_desc(frag, pfrag->page, pfrag->offset,
+ size);
++record->num_frags;
get_page(pfrag->page);
}
@@ -357,9 +356,8 @@ static int tls_create_new_record(struct tls_offload_context_tx *offload_ctx,
return -ENOMEM;
frag = &record->frags[0];
- __skb_frag_set_page(frag, pfrag->page);
- skb_frag_off_set(frag, pfrag->offset);
- skb_frag_size_set(frag, prepend_size);
+ skb_frag_fill_page_desc(frag, pfrag->page, pfrag->offset,
+ prepend_size);
get_page(pfrag->page);
pfrag->offset += prepend_size;
@@ -424,16 +422,10 @@ static int tls_device_copy_data(void *addr, size_t bytes, struct iov_iter *i)
return 0;
}
-union tls_iter_offset {
- struct iov_iter *msg_iter;
- int offset;
-};
-
static int tls_push_data(struct sock *sk,
- union tls_iter_offset iter_offset,
+ struct iov_iter *iter,
size_t size, int flags,
- unsigned char record_type,
- struct page *zc_page)
+ unsigned char record_type)
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_prot_info *prot = &tls_ctx->prot_info;
@@ -449,14 +441,14 @@ static int tls_push_data(struct sock *sk,
long timeo;
if (flags &
- ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SENDPAGE_NOTLAST))
+ ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SPLICE_PAGES))
return -EOPNOTSUPP;
if (unlikely(sk->sk_err))
return -sk->sk_err;
flags |= MSG_SENDPAGE_DECRYPTED;
- tls_push_record_flags = flags | MSG_SENDPAGE_NOTLAST;
+ tls_push_record_flags = flags | MSG_MORE;
timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT);
if (tls_is_partially_sent_record(tls_ctx)) {
@@ -501,21 +493,35 @@ handle_error:
record = ctx->open_record;
copy = min_t(size_t, size, max_open_record_len - record->len);
- if (copy && zc_page) {
+ if (copy && (flags & MSG_SPLICE_PAGES)) {
struct page_frag zc_pfrag;
+ struct page **pages = &zc_pfrag.page;
+ size_t off;
+
+ rc = iov_iter_extract_pages(iter, &pages,
+ copy, 1, 0, &off);
+ if (rc <= 0) {
+ if (rc == 0)
+ rc = -EIO;
+ goto handle_error;
+ }
+ copy = rc;
+
+ if (WARN_ON_ONCE(!sendpage_ok(zc_pfrag.page))) {
+ iov_iter_revert(iter, copy);
+ rc = -EIO;
+ goto handle_error;
+ }
- zc_pfrag.page = zc_page;
- zc_pfrag.offset = iter_offset.offset;
+ zc_pfrag.offset = off;
zc_pfrag.size = copy;
tls_append_frag(record, &zc_pfrag, copy);
-
- iter_offset.offset += copy;
} else if (copy) {
copy = min_t(size_t, copy, pfrag->size - pfrag->offset);
rc = tls_device_copy_data(page_address(pfrag->page) +
pfrag->offset, copy,
- iter_offset.msg_iter);
+ iter);
if (rc)
goto handle_error;
tls_append_frag(record, pfrag, copy);
@@ -525,7 +531,7 @@ handle_error:
if (!size) {
last_record:
tls_push_record_flags = flags;
- if (flags & (MSG_SENDPAGE_NOTLAST | MSG_MORE)) {
+ if (flags & MSG_MORE) {
more = true;
break;
}
@@ -570,9 +576,11 @@ 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);
- union tls_iter_offset iter;
int rc;
+ if (!tls_ctx->zerocopy_sendfile)
+ msg->msg_flags &= ~MSG_SPLICE_PAGES;
+
mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
@@ -582,8 +590,8 @@ int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
goto out;
}
- iter.msg_iter = &msg->msg_iter;
- rc = tls_push_data(sk, iter, size, msg->msg_flags, record_type, NULL);
+ rc = tls_push_data(sk, &msg->msg_iter, size, msg->msg_flags,
+ record_type);
out:
release_sock(sk);
@@ -591,47 +599,25 @@ out:
return rc;
}
-int tls_device_sendpage(struct sock *sk, struct page *page,
- int offset, size_t size, int flags)
+void tls_device_splice_eof(struct socket *sock)
{
+ struct sock *sk = sock->sk;
struct tls_context *tls_ctx = tls_get_ctx(sk);
- union tls_iter_offset iter_offset;
- struct iov_iter msg_iter;
- char *kaddr;
- struct kvec iov;
- int rc;
+ struct iov_iter iter = {};
- if (flags & MSG_SENDPAGE_NOTLAST)
- flags |= MSG_MORE;
+ if (!tls_is_partially_sent_record(tls_ctx))
+ return;
mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
- if (flags & MSG_OOB) {
- rc = -EOPNOTSUPP;
- goto out;
- }
-
- if (tls_ctx->zerocopy_sendfile) {
- iter_offset.offset = offset;
- rc = tls_push_data(sk, iter_offset, size,
- flags, TLS_RECORD_TYPE_DATA, page);
- goto out;
+ if (tls_is_partially_sent_record(tls_ctx)) {
+ iov_iter_bvec(&iter, ITER_SOURCE, NULL, 0, 0);
+ tls_push_data(sk, &iter, 0, 0, TLS_RECORD_TYPE_DATA);
}
- kaddr = kmap(page);
- iov.iov_base = kaddr + offset;
- iov.iov_len = size;
- iov_iter_kvec(&msg_iter, ITER_SOURCE, &iov, 1, size);
- iter_offset.msg_iter = &msg_iter;
- rc = tls_push_data(sk, iter_offset, size, flags, TLS_RECORD_TYPE_DATA,
- NULL);
- kunmap(page);
-
-out:
release_sock(sk);
mutex_unlock(&tls_ctx->tx_lock);
- return rc;
}
struct tls_record_info *tls_get_record(struct tls_offload_context_tx *context,
@@ -696,12 +682,10 @@ EXPORT_SYMBOL(tls_get_record);
static int tls_device_push_pending_record(struct sock *sk, int flags)
{
- union tls_iter_offset iter;
- struct iov_iter msg_iter;
+ struct iov_iter iter;
- iov_iter_kvec(&msg_iter, ITER_SOURCE, NULL, 0, 0);
- iter.msg_iter = &msg_iter;
- return tls_push_data(sk, iter, 0, flags, TLS_RECORD_TYPE_DATA, NULL);
+ iov_iter_kvec(&iter, ITER_SOURCE, NULL, 0, 0);
+ return tls_push_data(sk, &iter, 0, flags, TLS_RECORD_TYPE_DATA);
}
void tls_device_write_space(struct sock *sk, struct tls_context *ctx)
@@ -1217,7 +1201,7 @@ int tls_set_device_offload(struct sock *sk, struct tls_context *ctx)
tls_device_attach(ctx, sk, netdev);
up_read(&device_offload_lock);
- /* following this assignment tls_is_sk_tx_device_offloaded
+ /* following this assignment tls_is_skb_tx_device_offloaded
* will return true and the context might be accessed
* by the netdev's xmit function.
*/
@@ -1370,7 +1354,7 @@ static int tls_device_down(struct net_device *netdev)
list_for_each_entry_safe(ctx, tmp, &list, list) {
/* Stop offloaded TX and switch to the fallback.
- * tls_is_sk_tx_device_offloaded will return false.
+ * tls_is_skb_tx_device_offloaded will return false.
*/
WRITE_ONCE(ctx->sk->sk_validate_xmit_skb, tls_validate_xmit_skb_sw);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-26 11:54:37 +0300