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authorEric Blake <eblake@redhat.com>2017-07-07 15:30:44 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2017-07-14 12:04:42 +0200
commit621c4f4eabff26493494909fc91aeac7e8205438 (patch)
tree65fe38897e383d19305ea936ade4227ec8ff3d33 /nbd
parent3736cc5be31f0399999e37d8b28ca9a3ed0b4ccb (diff)
nbd: Simplify trace of client flags in negotiation
Simplify the tracing of client flags in the server, and return -EINVAL instead of -EIO if we successfully read but don't like those flags. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20170707203049.534-5-eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'nbd')
-rw-r--r--nbd/server.c6
-rw-r--r--nbd/trace-events4
2 files changed, 3 insertions, 7 deletions
diff --git a/nbd/server.c b/nbd/server.c
index 27a0aabe3f..8e363d3a83 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -396,21 +396,19 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
error_prepend(errp, "read failed: ");
return -EIO;
}
- trace_nbd_negotiate_options_flags();
be32_to_cpus(&flags);
+ trace_nbd_negotiate_options_flags(flags);
if (flags & NBD_FLAG_C_FIXED_NEWSTYLE) {
- trace_nbd_negotiate_options_newstyle();
fixedNewstyle = true;
flags &= ~NBD_FLAG_C_FIXED_NEWSTYLE;
}
if (flags & NBD_FLAG_C_NO_ZEROES) {
- trace_nbd_negotiate_options_no_zeroes();
client->no_zeroes = true;
flags &= ~NBD_FLAG_C_NO_ZEROES;
}
if (flags != 0) {
error_setg(errp, "Unknown client flags 0x%" PRIx32 " received", flags);
- return -EIO;
+ return -EINVAL;
}
while (1) {
diff --git a/nbd/trace-events b/nbd/trace-events
index 5e2f961257..8db05008a0 100644
--- a/nbd/trace-events
+++ b/nbd/trace-events
@@ -35,9 +35,7 @@ nbd_negotiate_handle_export_name(void) "Checking length"
nbd_negotiate_handle_export_name_request(const char *name) "Client requested export '%s'"
nbd_negotiate_handle_starttls(void) "Setting up TLS"
nbd_negotiate_handle_starttls_handshake(void) "Starting TLS handshake"
-nbd_negotiate_options_flags(void) "Checking client flags"
-nbd_negotiate_options_newstyle(void) "Client supports fixed newstyle handshake"
-nbd_negotiate_options_no_zeroes(void) "Client supports no zeroes at handshake end"
+nbd_negotiate_options_flags(uint32_t flags) "Received client flags 0x%" PRIx32
nbd_negotiate_options_check_magic(uint64_t magic) "Checking opts magic 0x%" PRIx64
nbd_negotiate_options_check_option(uint32_t option, const char *name) "Checking option 0x%" PRIx32 " (%s)"
nbd_negotiate_begin(void) "Beginning negotiation"