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authorEric Blake <eblake@redhat.com>2017-07-07 15:30:46 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2017-07-14 12:04:42 +0200
commitf37708f6b8e0bef0dd85c6aad7fc2062071f8227 (patch)
tree5d12f5e01624f077d8a86ca81aca2c8a68f821ba /nbd/trace-events
parent23e099c34c6c5d774af37be8f7b57a9e563c58f4 (diff)
nbd: Implement NBD_OPT_GO on server
NBD_OPT_EXPORT_NAME is lousy: per the NBD protocol, any failure requires us to close the connection rather than report an error. Therefore, upstream NBD recently added NBD_OPT_GO as the improved version of the option that does what we want [1], along with NBD_OPT_INFO that returns the same information but does not transition to transmission phase. [1] https://github.com/NetworkBlockDevice/nbd/blob/extension-info/doc/proto.md This is a first cut at the information types, and only passes the same information already available through NBD_OPT_LIST and NBD_OPT_EXPORT_NAME; items like NBD_INFO_BLOCK_SIZE (and thus any use of NBD_REP_ERR_BLOCK_SIZE_REQD) are intentionally left for later patches. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20170707203049.534-7-eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'nbd/trace-events')
-rw-r--r--nbd/trace-events3
1 files changed, 3 insertions, 0 deletions
diff --git a/nbd/trace-events b/nbd/trace-events
index 8db05008a0..5230c61ab1 100644
--- a/nbd/trace-events
+++ b/nbd/trace-events
@@ -33,6 +33,9 @@ nbd_negotiate_send_rep_err(const char *msg) "sending error message \"%s\""
nbd_negotiate_send_rep_list(const char *name, const char *desc) "Advertising export name '%s' description '%s'"
nbd_negotiate_handle_export_name(void) "Checking length"
nbd_negotiate_handle_export_name_request(const char *name) "Client requested export '%s'"
+nbd_negotiate_send_info(int info, const char *name, uint32_t length) "Sending NBD_REP_INFO type %d (%s) with remaining length %" PRIu32
+nbd_negotiate_handle_info_requests(int requests) "Client requested %d items of info"
+nbd_negotiate_handle_info_request(int request, const char *name) "Client requested info %d (%s)"
nbd_negotiate_handle_starttls(void) "Setting up TLS"
nbd_negotiate_handle_starttls_handshake(void) "Starting TLS handshake"
nbd_negotiate_options_flags(uint32_t flags) "Received client flags 0x%" PRIx32