diff mbox series

[PULL,05/22] io: Add a read flag for relaxed EOF

Message ID 20250214203159.30168-6-farosas@suse.de (mailing list archive)
State New
Headers show
Series [PULL,01/22] crypto: Allow gracefully ending the TLS session | expand

Commit Message

Fabiano Rosas Feb. 14, 2025, 8:31 p.m. UTC 
Add a read flag that can inform a channel that it's ok to receive an
EOF at any moment. Channels that have some form of strict EOF
tracking, such as TLS session termination, may choose to ignore EOF
errors with the use of this flag.

This is being added for compatibility with older migration streams
that do not include a TLS termination step.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
---
 include/io/channel.h | 1 +
 io/channel-tls.c     | 1 +
 2 files changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/include/io/channel.h b/include/io/channel.h
index 58940eead5..62b657109c 100644
--- a/include/io/channel.h
+++ b/include/io/channel.h
@@ -35,6 +35,7 @@  OBJECT_DECLARE_TYPE(QIOChannel, QIOChannelClass,
 #define QIO_CHANNEL_WRITE_FLAG_ZERO_COPY 0x1
 
 #define QIO_CHANNEL_READ_FLAG_MSG_PEEK 0x1
+#define QIO_CHANNEL_READ_FLAG_RELAXED_EOF 0x2
 
 typedef enum QIOChannelFeature QIOChannelFeature;
 
diff --git a/io/channel-tls.c b/io/channel-tls.c
index ecde6b57bf..caf8301a9e 100644
--- a/io/channel-tls.c
+++ b/io/channel-tls.c
@@ -359,6 +359,7 @@  static ssize_t qio_channel_tls_readv(QIOChannel *ioc,
             tioc->session,
             iov[i].iov_base,
             iov[i].iov_len,
+            flags & QIO_CHANNEL_READ_FLAG_RELAXED_EOF ||
             qatomic_load_acquire(&tioc->shutdown) & QIO_CHANNEL_SHUTDOWN_READ,
             errp);
         if (ret == QCRYPTO_TLS_SESSION_ERR_BLOCK) {