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From f13297315495144775f6249e9e24dc5f18f6f902 Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Wed, 4 May 2022 15:41:53 +0200
Subject: [PATCH] lib: drive_create_data, drive: remove field "iface"
Representing "iface" in the "drive_create_data" and "drive" structures is
now useless; the direct backend ignores "iface", while the libvirt one
rejects it unless it is empty. Unify both backends -- make them both
ignore "iface". (Which only relaxes the libvirt backend, so it cannot
cause compatibility problems.) This lets us remove the fields. Update the
documentation as well.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1844341
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20220504134155.11832-3-lersek@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
(cherry picked from commit f68eaee1d6c41f91e7dfd2aa9e7d238cca7b8a4c)
---
generator/actions_core_deprecated.ml | 6 ++----
lib/drives.c | 31 +++++-----------------------
lib/guestfs-internal.h | 1 -
lib/launch-libvirt.c | 6 ------
lib/libvirt-domain.c | 15 --------------
5 files changed, 7 insertions(+), 52 deletions(-)
diff --git a/generator/actions_core_deprecated.ml b/generator/actions_core_deprecated.ml
index f1040a0e9..c23f4a330 100644
--- a/generator/actions_core_deprecated.ml
+++ b/generator/actions_core_deprecated.ml
@@ -74,8 +74,7 @@ of C<guestfs_add_drive_ro>." };
longdesc = "\
This is the same as C<guestfs_add_drive> but it allows you
to specify the QEMU interface emulation to use at run time.
-The libvirt backend rejects a non-empty C<iface> argument.
-The direct backend ignores C<iface>." };
+Both the direct and the libvirt backends ignore C<iface>." };
{ defaults with
name = "add_drive_ro_with_if"; added = (1, 0, 84);
@@ -86,8 +85,7 @@ The direct backend ignores C<iface>." };
longdesc = "\
This is the same as C<guestfs_add_drive_ro> but it allows you
to specify the QEMU interface emulation to use at run time.
-The libvirt backend rejects a non-empty C<iface> argument.
-The direct backend ignores C<iface>." };
+Both the direct and the libvirt backends ignore C<iface>." };
{ defaults with
name = "lstatlist"; added = (1, 0, 77);
diff --git a/lib/drives.c b/lib/drives.c
index a6179fc36..8fe46a41c 100644
--- a/lib/drives.c
+++ b/lib/drives.c
@@ -53,7 +53,6 @@ struct drive_create_data {
const char *secret;
bool readonly;
const char *format;
- const char *iface;
const char *name;
const char *disk_label;
const char *cachemode;
@@ -110,7 +109,6 @@ create_drive_file (guestfs_h *g,
drv->src.format = data->format ? safe_strdup (g, data->format) : NULL;
drv->readonly = data->readonly;
- drv->iface = data->iface ? safe_strdup (g, data->iface) : NULL;
drv->name = data->name ? safe_strdup (g, data->name) : NULL;
drv->disk_label = data->disk_label ? safe_strdup (g, data->disk_label) : NULL;
drv->cachemode = data->cachemode ? safe_strdup (g, data->cachemode) : NULL;
@@ -147,7 +145,6 @@ create_drive_non_file (guestfs_h *g,
drv->src.format = data->format ? safe_strdup (g, data->format) : NULL;
drv->readonly = data->readonly;
- drv->iface = data->iface ? safe_strdup (g, data->iface) : NULL;
drv->name = data->name ? safe_strdup (g, data->name) : NULL;
drv->disk_label = data->disk_label ? safe_strdup (g, data->disk_label) : NULL;
drv->cachemode = data->cachemode ? safe_strdup (g, data->cachemode) : NULL;
@@ -470,7 +467,6 @@ free_drive_struct (struct drive *drv)
{
free_drive_source (&drv->src);
free (drv->overlay);
- free (drv->iface);
free (drv->name);
free (drv->disk_label);
free (drv->cachemode);
@@ -511,14 +507,12 @@ drive_to_string (guestfs_h *g, const struct drive *drv)
s_blocksize = safe_asprintf (g, "%d", drv->blocksize);
return safe_asprintf
- (g, "%s%s%s%s protocol=%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ (g, "%s%s%s%s protocol=%s%s%s%s%s%s%s%s%s%s%s",
drv->src.u.path,
drv->readonly ? " readonly" : "",
drv->src.format ? " format=" : "",
drv->src.format ? : "",
guestfs_int_drive_protocol_to_string (drv->src.protocol),
- drv->iface ? " iface=" : "",
- drv->iface ? : "",
drv->name ? " name=" : "",
drv->name ? : "",
drv->disk_label ? " label=" : "",
@@ -747,8 +741,6 @@ guestfs_impl_add_drive_opts (guestfs_h *g, const char *filename,
? optargs->readonly : false;
data.format = optargs->bitmask & GUESTFS_ADD_DRIVE_OPTS_FORMAT_BITMASK
? optargs->format : NULL;
- data.iface = optargs->bitmask & GUESTFS_ADD_DRIVE_OPTS_IFACE_BITMASK
- ? optargs->iface : NULL;
data.name = optargs->bitmask & GUESTFS_ADD_DRIVE_OPTS_NAME_BITMASK
? optargs->name : NULL;
data.disk_label = optargs->bitmask & GUESTFS_ADD_DRIVE_OPTS_LABEL_BITMASK
@@ -804,12 +796,6 @@ guestfs_impl_add_drive_opts (guestfs_h *g, const char *filename,
free_drive_servers (data.servers, data.nr_servers);
return -1;
}
- if (data.iface && !VALID_FORMAT_IFACE (data.iface)) {
- error (g, _("%s parameter is empty or contains disallowed characters"),
- "iface");
- free_drive_servers (data.servers, data.nr_servers);
- return -1;
- }
if (data.disk_label && !VALID_DISK_LABEL (data.disk_label)) {
error (g, _("label parameter is empty, too long, or contains disallowed characters"));
free_drive_servers (data.servers, data.nr_servers);
@@ -935,24 +921,17 @@ guestfs_impl_add_drive_ro (guestfs_h *g, const char *filename)
int
guestfs_impl_add_drive_with_if (guestfs_h *g, const char *filename,
- const char *iface)
+ const char *iface ATTRIBUTE_UNUSED)
{
- const struct guestfs_add_drive_opts_argv optargs = {
- .bitmask = GUESTFS_ADD_DRIVE_OPTS_IFACE_BITMASK,
- .iface = iface,
- };
-
- return guestfs_add_drive_opts_argv (g, filename, &optargs);
+ return guestfs_add_drive_opts_argv (g, filename, NULL);
}
int
guestfs_impl_add_drive_ro_with_if (guestfs_h *g, const char *filename,
- const char *iface)
+ const char *iface ATTRIBUTE_UNUSED)
{
const struct guestfs_add_drive_opts_argv optargs = {
- .bitmask = GUESTFS_ADD_DRIVE_OPTS_IFACE_BITMASK
- | GUESTFS_ADD_DRIVE_OPTS_READONLY_BITMASK,
- .iface = iface,
+ .bitmask = GUESTFS_ADD_DRIVE_OPTS_READONLY_BITMASK,
.readonly = true,
};
diff --git a/lib/guestfs-internal.h b/lib/guestfs-internal.h
index 5bb00bc10..16755cfb3 100644
--- a/lib/guestfs-internal.h
+++ b/lib/guestfs-internal.h
@@ -298,7 +298,6 @@ struct drive {
/* Various per-drive flags. */
bool readonly;
- char *iface;
char *name;
char *disk_label;
char *cachemode;
diff --git a/lib/launch-libvirt.c b/lib/launch-libvirt.c
index de342b425..03d69e027 100644
--- a/lib/launch-libvirt.c
+++ b/lib/launch-libvirt.c
@@ -1472,12 +1472,6 @@ construct_libvirt_xml_disk (guestfs_h *g,
const char *type, *uuid;
int r;
- /* XXX We probably could support this if we thought about it some more. */
- if (drv->iface) {
- error (g, _("‘iface’ parameter is not supported by the libvirt backend"));
- return -1;
- }
-
start_element ("disk") {
attribute ("device", "disk");
diff --git a/lib/libvirt-domain.c b/lib/libvirt-domain.c
index 3050680fa..fafbf50ea 100644
--- a/lib/libvirt-domain.c
+++ b/lib/libvirt-domain.c
@@ -68,7 +68,6 @@ guestfs_impl_add_domain (guestfs_h *g, const char *domain_name,
int live;
int allowuuid;
const char *readonlydisk;
- const char *iface;
const char *cachemode;
const char *discard;
bool copyonread;
@@ -78,8 +77,6 @@ guestfs_impl_add_domain (guestfs_h *g, const char *domain_name,
? optargs->libvirturi : NULL;
readonly = optargs->bitmask & GUESTFS_ADD_DOMAIN_READONLY_BITMASK
? optargs->readonly : 0;
- iface = optargs->bitmask & GUESTFS_ADD_DOMAIN_IFACE_BITMASK
- ? optargs->iface : NULL;
live = optargs->bitmask & GUESTFS_ADD_DOMAIN_LIVE_BITMASK
? optargs->live : 0;
allowuuid = optargs->bitmask & GUESTFS_ADD_DOMAIN_ALLOWUUID_BITMASK
@@ -136,10 +133,6 @@ guestfs_impl_add_domain (guestfs_h *g, const char *domain_name,
optargs2.bitmask |= GUESTFS_ADD_LIBVIRT_DOM_READONLY_BITMASK;
optargs2.readonly = readonly;
}
- if (iface) {
- optargs2.bitmask |= GUESTFS_ADD_LIBVIRT_DOM_IFACE_BITMASK;
- optargs2.iface = iface;
- }
if (live) {
error (g, _("libguestfs live support was removed in libguestfs 1.48"));
goto cleanup;
@@ -193,7 +186,6 @@ guestfs_impl_add_libvirt_dom (guestfs_h *g, void *domvp,
virDomainPtr dom = domvp;
ssize_t r;
int readonly;
- const char *iface;
const char *cachemode;
const char *discard;
bool copyonread;
@@ -208,9 +200,6 @@ guestfs_impl_add_libvirt_dom (guestfs_h *g, void *domvp,
readonly =
optargs->bitmask & GUESTFS_ADD_LIBVIRT_DOM_READONLY_BITMASK
? optargs->readonly : 0;
- iface =
- optargs->bitmask & GUESTFS_ADD_LIBVIRT_DOM_IFACE_BITMASK
- ? optargs->iface : NULL;
live =
optargs->bitmask & GUESTFS_ADD_LIBVIRT_DOM_LIVE_BITMASK
? optargs->live : 0;
@@ -289,10 +278,6 @@ guestfs_impl_add_libvirt_dom (guestfs_h *g, void *domvp,
data.optargs.bitmask = 0;
data.readonly = readonly;
data.readonlydisk = readonlydisk;
- if (iface) {
- data.optargs.bitmask |= GUESTFS_ADD_DRIVE_OPTS_IFACE_BITMASK;
- data.optargs.iface = iface;
- }
if (cachemode) {
data.optargs.bitmask |= GUESTFS_ADD_DRIVE_OPTS_CACHEMODE_BITMASK;
data.optargs.cachemode = cachemode;
--
2.31.1
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