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| author | Eric Blake <eblake@redhat.com> | 2017-07-07 15:30:43 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-07-14 12:04:41 +0200 |
| commit | 3736cc5be31f0399999e37d8b28ca9a3ed0b4ccb (patch) | |
| tree | 7c6554650e86dab2c7493e6b1a81b2303b0cda3a /nbd/server.c | |
| parent | 37ec36f622d46b7d13421533efe686af2326771e (diff) | |
| download | qemu-3736cc5be31f0399999e37d8b28ca9a3ed0b4ccb.zip qemu-3736cc5be31f0399999e37d8b28ca9a3ed0b4ccb.tar.gz qemu-3736cc5be31f0399999e37d8b28ca9a3ed0b4ccb.tar.bz2 | |
nbd: Expose and debug more NBD constants
The NBD protocol has several constants defined in various extensions
that we are about to implement. Expose them to the code, along with
an easy way to map various constants to strings during diagnostic
messages.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20170707203049.534-4-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'nbd/server.c')
| -rw-r--r-- | nbd/server.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/nbd/server.c b/nbd/server.c index e15385b..27a0aab 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2016 Red Hat, Inc. + * Copyright (C) 2016-2017 Red Hat, Inc. * Copyright (C) 2005 Anthony Liguori <anthony@codemonkey.ws> * * Network Block Device Server Side @@ -139,7 +139,8 @@ static int nbd_negotiate_send_rep_len(QIOChannel *ioc, uint32_t type, { uint64_t magic; - trace_nbd_negotiate_send_rep_len(opt, type, len); + trace_nbd_negotiate_send_rep_len(opt, nbd_opt_lookup(opt), + type, nbd_rep_lookup(type), len); magic = cpu_to_be64(NBD_REP_MAGIC); if (nbd_write(ioc, &magic, sizeof(magic), errp) < 0) { @@ -441,7 +442,8 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp) } length = be32_to_cpu(length); - trace_nbd_negotiate_options_check_option(option); + trace_nbd_negotiate_options_check_option(option, + nbd_opt_lookup(option)); if (client->tlscreds && client->ioc == (QIOChannel *)client->sioc) { QIOChannel *tioc; @@ -532,8 +534,8 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp) NBD_REP_ERR_UNSUP, option, errp, "Unsupported option 0x%" - PRIx32, - option); + PRIx32 " (%s)", option, + nbd_opt_lookup(option)); if (ret < 0) { return ret; } @@ -549,7 +551,8 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp) return nbd_negotiate_handle_export_name(client, length, errp); default: - error_setg(errp, "Unsupported option 0x%" PRIx32, option); + error_setg(errp, "Unsupported option 0x%" PRIx32 " (%s)", + option, nbd_opt_lookup(option)); return -EINVAL; } } @@ -1033,7 +1036,8 @@ static int nbd_co_receive_request(NBDRequestData *req, NBDRequest *request, return -EIO; } - trace_nbd_co_receive_request_decode_type(request->handle, request->type); + trace_nbd_co_receive_request_decode_type(request->handle, request->type, + nbd_cmd_lookup(request->type)); if (request->type != NBD_CMD_WRITE) { /* No payload, we are ready to read the next request. */ |