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drbd: replace genl_magic with explicit netlink serialization

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Replace the genl_magic multi-include macro system with explicit
serialization and parsing.

The *_gen files were initially produced from a YNL spec via a
customized ynl-gen-c, but the DRBD netlink family is effectively
frozen, so the generator is kept unmodified.
All new functionality will land in a separate, properly-designed
family.
Carry the resulting code as ordinary in-tree source rather than
landing the spec and generator changes that produced it.

The bulk of the changes are mechanical renames to fit the YNL naming
conventions:
  - Handler functions: drbd_adm_* -> drbd_nl_*_doit/dumpit
  - GENL_MAGIC_VERSION -> DRBD_FAMILY_VERSION
  - GENL_MAGIC_FAMILY_HDRSZ -> sizeof(struct drbd_genlmsghdr)
  - drbd_genl_family -> drbd_nl_family
  - Attribute IDs: T_* -> DRBD_A_*

Remove the nested_attr_tb static global buffer and move to a per-call
allocation approach: each deserialization manages its own nested
attribute table. This will be needed anyway when we eventually move
to parallel_ops, and it's actually simpler this way, so make the
move now.

Replace the functionality of the "sensitive" flag: this was only used
by a single field (shared_secret); open-code redaction logic for that
locally.

Also replace the "invariant" flag: this only had a couple of users,
and those basically never change. Hard code the check directly inline.

The genl_family struct itself is defined manually in drbd_nl.c.

Also replace a couple of drbd-specific wrappers (nla_put_u64_0pad,
drbd_nla_find_nested) with standard kernel functions while we're at
it.

Finally, completely remove the genl_magic system; DRBD was its only
user.

Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260506124541.1951772-3-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Böhmwalder
2026-05-06 14:45:41 +02:00
committed by Jens Axboe
parent a54f499838
commit 8098eeb693
14 changed files with 3608 additions and 1421 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/block/drbd/Makefile
+1
View File
@@ -3,6 +3,7 @@ drbd-y := drbd_buildtag.o drbd_bitmap.o drbd_proc.o
drbd-y += drbd_worker.o drbd_receiver.o drbd_req.o drbd_actlog.o
drbd-y += drbd_main.o drbd_strings.o drbd_nl.o
drbd-y += drbd_interval.o drbd_state.o
drbd-y += drbd_nl_gen.o
drbd-$(CONFIG_DEBUG_FS) += drbd_debugfs.o
obj-$(CONFIG_BLK_DEV_DRBD) += drbd.o
drivers/block/drbd/drbd_debugfs.c
+1 -1
View File
@@ -844,7 +844,7 @@ static int drbd_version_show(struct seq_file *m, void *ignored)
{
seq_printf(m, "# %s\n", drbd_buildtag());
seq_printf(m, "VERSION=%s\n", REL_VERSION);
seq_printf(m, "API_VERSION=%u\n", GENL_MAGIC_VERSION);
seq_printf(m, "API_VERSION=%u\n", DRBD_FAMILY_VERSION);
seq_printf(m, "PRO_VERSION_MIN=%u\n", PRO_VERSION_MIN);
seq_printf(m, "PRO_VERSION_MAX=%u\n", PRO_VERSION_MAX);
return 0;
drivers/block/drbd/drbd_int.h
+3 -1
View File
@@ -32,14 +32,16 @@
#include <net/tcp.h>
#include <linux/lru_cache.h>
#include <linux/prefetch.h>
#include <linux/drbd_genl_api.h>
#include <linux/drbd.h>
#include "drbd_config.h"
#include "drbd_nl_gen.h"
#include "drbd_strings.h"
#include "drbd_state.h"
#include "drbd_protocol.h"
#include "drbd_polymorph_printk.h"
extern struct genl_family drbd_nl_family;
/* shared module parameters, defined in drbd_main.c */
#ifdef CONFIG_DRBD_FAULT_INJECTION
extern int drbd_enable_faults;
drivers/block/drbd/drbd_main.c
+3 -3
View File
@@ -2324,7 +2324,7 @@ static void drbd_cleanup(void)
if (retry.wq)
destroy_workqueue(retry.wq);
drbd_genl_unregister();
genl_unregister_family(&drbd_nl_family);
idr_for_each_entry(&drbd_devices, device, i)
drbd_delete_device(device);
@@ -2846,7 +2846,7 @@ static int __init drbd_init(void)
mutex_init(&resources_mutex);
INIT_LIST_HEAD(&drbd_resources);
err = drbd_genl_register();
err = genl_register_family(&drbd_nl_family);
if (err) {
pr_err("unable to register generic netlink family\n");
goto fail;
@@ -2876,7 +2876,7 @@ static int __init drbd_init(void)
pr_info("initialized. "
"Version: " REL_VERSION " (api:%d/proto:%d-%d)\n",
GENL_MAGIC_VERSION, PRO_VERSION_MIN, PRO_VERSION_MAX);
DRBD_FAMILY_VERSION, PRO_VERSION_MIN, PRO_VERSION_MAX);
pr_info("%s\n", drbd_buildtag());
pr_info("registered as block device major %d\n", DRBD_MAJOR);
return 0; /* Success! */
drivers/block/drbd/drbd_nl.c
+236 -178
View File
@@ -31,59 +31,13 @@
#include <net/genetlink.h>
/* .doit */
// int drbd_adm_create_resource(struct sk_buff *skb, struct genl_info *info);
// int drbd_adm_delete_resource(struct sk_buff *skb, struct genl_info *info);
#include "drbd_nl_gen.h"
int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_del_minor(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_new_resource(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_del_resource(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_down(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_set_role(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_detach(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_start_ov(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_new_c_uuid(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_disconnect(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_invalidate(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_invalidate_peer(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_pause_sync(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_resume_sync(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_suspend_io(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_resume_io(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_outdate(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_resource_opts(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_get_status(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_get_timeout_type(struct sk_buff *skb, struct genl_info *info);
/* .dumpit */
int drbd_adm_get_status_all(struct sk_buff *skb, struct netlink_callback *cb);
int drbd_adm_dump_resources(struct sk_buff *skb, struct netlink_callback *cb);
int drbd_adm_dump_devices(struct sk_buff *skb, struct netlink_callback *cb);
int drbd_adm_dump_devices_done(struct netlink_callback *cb);
int drbd_adm_dump_connections(struct sk_buff *skb, struct netlink_callback *cb);
int drbd_adm_dump_connections_done(struct netlink_callback *cb);
int drbd_adm_dump_peer_devices(struct sk_buff *skb, struct netlink_callback *cb);
int drbd_adm_dump_peer_devices_done(struct netlink_callback *cb);
int drbd_adm_get_initial_state(struct sk_buff *skb, struct netlink_callback *cb);
#include <linux/drbd_genl_api.h>
static int drbd_pre_doit(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info);
static void drbd_post_doit(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info);
#define GENL_MAGIC_FAMILY_PRE_DOIT drbd_pre_doit
#define GENL_MAGIC_FAMILY_POST_DOIT drbd_post_doit
#include <linux/genl_magic_func.h>
static int drbd_genl_multicast_events(struct sk_buff *skb, gfp_t flags)
{
return genlmsg_multicast(&drbd_nl_family, skb, 0,
DRBD_NLGRP_EVENTS, flags);
}
static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
static atomic_t notify_genl_seq = ATOMIC_INIT(2); /* two. */
@@ -114,7 +68,7 @@ static int drbd_msg_put_info(struct sk_buff *skb, const char *info)
if (!nla)
return err;
err = nla_put_string(skb, T_info_text, info);
err = nla_put_string(skb, DRBD_A_DRBD_CFG_REPLY_INFO_TEXT, info);
if (err) {
nla_nest_cancel(skb, nla);
return err;
@@ -135,7 +89,7 @@ static int drbd_msg_sprintf_info(struct sk_buff *skb, const char *fmt, ...)
if (!nla)
return err;
txt = nla_reserve(skb, T_info_text, 256);
txt = nla_reserve(skb, DRBD_A_DRBD_CFG_REPLY_INFO_TEXT, 256);
if (!txt) {
nla_nest_cancel(skb, nla);
return err;
@@ -187,6 +141,15 @@ static const unsigned int drbd_genl_cmd_flags[] = {
[DRBD_ADM_DOWN] = DRBD_ADM_NEED_RESOURCE,
};
/* Detect attempts to change invariant attributes in a _change_ handler. */
#define has_invariant(ntb, attr) \
({ \
bool __found = !!(ntb)[attr]; \
if (__found) \
pr_info("must not change invariant attr: %s\n", #attr); \
__found; \
})
/*
* At this point, we still rely on the global genl_lock().
* If we want to avoid that, and allow "genl_family.parallel_ops", we may need
@@ -210,7 +173,7 @@ static int drbd_adm_prepare(struct drbd_config_context *adm_ctx,
}
adm_ctx->reply_dh = genlmsg_put_reply(adm_ctx->reply_skb,
info, &drbd_genl_family, 0, cmd);
info, &drbd_nl_family, 0, cmd);
/* put of a few bytes into a fresh skb of >= 4k will always succeed.
* but anyways */
if (!adm_ctx->reply_dh) {
@@ -223,9 +186,11 @@ static int drbd_adm_prepare(struct drbd_config_context *adm_ctx,
adm_ctx->volume = VOLUME_UNSPECIFIED;
if (info->attrs[DRBD_NLA_CFG_CONTEXT]) {
struct nlattr **ntb;
struct nlattr *nla;
/* parse and validate only */
err = drbd_cfg_context_from_attrs(NULL, info);
/* parse and validate, get nested attribute table */
err = drbd_cfg_context_ntb_from_attrs(&ntb, info);
if (err)
goto fail;
@@ -234,18 +199,21 @@ static int drbd_adm_prepare(struct drbd_config_context *adm_ctx,
err = nla_put_nohdr(adm_ctx->reply_skb,
info->attrs[DRBD_NLA_CFG_CONTEXT]->nla_len,
info->attrs[DRBD_NLA_CFG_CONTEXT]);
if (err)
if (err) {
kfree(ntb);
goto fail;
}
/* and assign stuff to the adm_ctx */
nla = nested_attr_tb[T_ctx_volume];
nla = ntb[DRBD_A_DRBD_CFG_CONTEXT_CTX_VOLUME];
if (nla)
adm_ctx->volume = nla_get_u32(nla);
nla = nested_attr_tb[T_ctx_resource_name];
nla = ntb[DRBD_A_DRBD_CFG_CONTEXT_CTX_RESOURCE_NAME];
if (nla)
adm_ctx->resource_name = nla_data(nla);
adm_ctx->my_addr = nested_attr_tb[T_ctx_my_addr];
adm_ctx->peer_addr = nested_attr_tb[T_ctx_peer_addr];
adm_ctx->my_addr = ntb[DRBD_A_DRBD_CFG_CONTEXT_CTX_MY_ADDR];
adm_ctx->peer_addr = ntb[DRBD_A_DRBD_CFG_CONTEXT_CTX_PEER_ADDR];
kfree(ntb);
if ((adm_ctx->my_addr &&
nla_len(adm_ctx->my_addr) > sizeof(adm_ctx->connection->my_addr)) ||
(adm_ctx->peer_addr &&
@@ -259,7 +227,7 @@ static int drbd_adm_prepare(struct drbd_config_context *adm_ctx,
adm_ctx->device = minor_to_device(d_in->minor);
/* We are protected by the global genl_lock().
* But we may explicitly drop it/retake it in drbd_adm_set_role(),
* But we may explicitly drop it/retake it in drbd_nl_set_role(),
* so make sure this object stays around. */
if (adm_ctx->device)
kref_get(&adm_ctx->device->kref);
@@ -334,8 +302,8 @@ fail:
return err;
}
static int drbd_pre_doit(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info)
int drbd_pre_doit(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx;
u8 cmd = info->genlhdr->cmd;
@@ -362,8 +330,8 @@ static int drbd_pre_doit(const struct genl_split_ops *ops,
return 0;
}
static void drbd_post_doit(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info)
void drbd_post_doit(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
@@ -828,7 +796,7 @@ static const char *from_attrs_err_to_txt(int err)
"invalid attribute value";
}
int drbd_adm_set_role(struct sk_buff *skb, struct genl_info *info)
static int drbd_nl_set_role(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct set_role_parms parms;
@@ -868,6 +836,16 @@ out:
return 0;
}
int drbd_nl_primary_doit(struct sk_buff *skb, struct genl_info *info)
{
return drbd_nl_set_role(skb, info);
}
int drbd_nl_secondary_doit(struct sk_buff *skb, struct genl_info *info)
{
return drbd_nl_set_role(skb, info);
}
/* Initializes the md.*_offset members, so we are able to find
* the on disk meta data.
*
@@ -962,7 +940,7 @@ char *ppsize(char *buf, unsigned long long size)
* peer may not initiate a resize.
*/
/* Note these are not to be confused with
* drbd_adm_suspend_io/drbd_adm_resume_io,
* drbd_nl_suspend_io_doit/drbd_nl_resume_io_doit,
* which are (sub) state changes triggered by admin (drbdsetup),
* and can be long lived.
* This changes an device->flag, is triggered by drbd internals,
@@ -1574,13 +1552,14 @@ out:
return err;
}
int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_chg_disk_opts_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
struct drbd_device *device;
struct disk_conf *new_disk_conf, *old_disk_conf;
struct fifo_buffer *old_plan = NULL, *new_plan = NULL;
struct nlattr **ntb;
int err;
unsigned int fifo_size;
@@ -1612,13 +1591,29 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
if (should_set_defaults(info))
set_disk_conf_defaults(new_disk_conf);
err = disk_conf_from_attrs_for_change(new_disk_conf, info);
err = disk_conf_from_attrs(new_disk_conf, info);
if (err && err != -ENOMSG) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(adm_ctx->reply_skb, from_attrs_err_to_txt(err));
goto fail_unlock;
}
err = disk_conf_ntb_from_attrs(&ntb, info);
if (!err) {
if (has_invariant(ntb, DRBD_A_DISK_CONF_BACKING_DEV) ||
has_invariant(ntb, DRBD_A_DISK_CONF_META_DEV) ||
has_invariant(ntb, DRBD_A_DISK_CONF_META_DEV_IDX) ||
has_invariant(ntb, DRBD_A_DISK_CONF_DISK_SIZE) ||
has_invariant(ntb, DRBD_A_DISK_CONF_MAX_BIO_BVECS)) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(adm_ctx->reply_skb,
"cannot change invariant setting");
kfree(ntb);
goto fail_unlock;
}
kfree(ntb);
}
if (!expect(device, new_disk_conf->resync_rate >= 1))
new_disk_conf->resync_rate = 1;
@@ -1796,7 +1791,7 @@ void drbd_backing_dev_free(struct drbd_device *device, struct drbd_backing_dev *
kfree(ldev);
}
int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_attach_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_device *device;
@@ -2236,7 +2231,7 @@ static int adm_detach(struct drbd_device *device, int force)
* Then we transition to D_DISKLESS, and wait for put_ldev() to return all
* internal references as well.
* Only then we have finally detached. */
int drbd_adm_detach(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_detach_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
@@ -2434,12 +2429,13 @@ static void free_crypto(struct crypto *crypto)
crypto_free_shash(crypto->verify_tfm);
}
int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_chg_net_opts_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
struct drbd_connection *connection;
struct net_conf *old_net_conf, *new_net_conf = NULL;
struct nlattr **ntb;
int err;
int ovr; /* online verify running */
int rsr; /* re-sync running */
@@ -2476,13 +2472,26 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
if (should_set_defaults(info))
set_net_conf_defaults(new_net_conf);
err = net_conf_from_attrs_for_change(new_net_conf, info);
err = net_conf_from_attrs(new_net_conf, info);
if (err && err != -ENOMSG) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(adm_ctx->reply_skb, from_attrs_err_to_txt(err));
goto fail;
}
err = net_conf_ntb_from_attrs(&ntb, info);
if (!err) {
if (has_invariant(ntb, DRBD_A_NET_CONF_DISCARD_MY_DATA) ||
has_invariant(ntb, DRBD_A_NET_CONF_TENTATIVE)) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(adm_ctx->reply_skb,
"cannot change invariant setting");
kfree(ntb);
goto fail;
}
kfree(ntb);
}
retcode = check_net_options(connection, new_net_conf);
if (retcode != NO_ERROR)
goto fail;
@@ -2575,7 +2584,7 @@ static void peer_device_to_info(struct peer_device_info *info,
info->peer_resync_susp_dependency = device->state.aftr_isp;
}
int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_connect_doit(struct sk_buff *skb, struct genl_info *info)
{
struct connection_info connection_info;
enum drbd_notification_type flags;
@@ -2790,7 +2799,7 @@ repeat:
return rv;
}
int drbd_adm_disconnect(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_disconnect_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct disconnect_parms parms;
@@ -2845,7 +2854,7 @@ void resync_after_online_grow(struct drbd_device *device)
_drbd_request_state(device, NS(conn, C_WF_SYNC_UUID), CS_VERBOSE + CS_SERIALIZE);
}
int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_resize_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct disk_conf *old_disk_conf, *new_disk_conf = NULL;
@@ -2981,7 +2990,7 @@ int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info)
goto fail;
}
int drbd_adm_resource_opts(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_resource_opts_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
@@ -3019,7 +3028,7 @@ fail:
return 0;
}
int drbd_adm_invalidate(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_invalidate_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_device *device;
@@ -3097,7 +3106,7 @@ static int drbd_bmio_set_susp_al(struct drbd_device *device,
return rv;
}
int drbd_adm_invalidate_peer(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_inval_peer_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
int retcode; /* drbd_ret_code, drbd_state_rv */
@@ -3148,7 +3157,7 @@ out:
return 0;
}
int drbd_adm_pause_sync(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_pause_sync_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
@@ -3168,7 +3177,7 @@ out:
return 0;
}
int drbd_adm_resume_sync(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_resume_sync_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
union drbd_dev_state s;
@@ -3196,12 +3205,12 @@ out:
return 0;
}
int drbd_adm_suspend_io(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_suspend_io_doit(struct sk_buff *skb, struct genl_info *info)
{
return drbd_adm_simple_request_state(skb, info, NS(susp, 1));
}
int drbd_adm_resume_io(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_resume_io_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_device *device;
@@ -3257,7 +3266,7 @@ out:
return 0;
}
int drbd_adm_outdate(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_outdate_doit(struct sk_buff *skb, struct genl_info *info)
{
return drbd_adm_simple_request_state(skb, info, NS(disk, D_OUTDATED));
}
@@ -3272,16 +3281,20 @@ static int nla_put_drbd_cfg_context(struct sk_buff *skb,
if (!nla)
goto nla_put_failure;
if (device &&
nla_put_u32(skb, T_ctx_volume, device->vnr))
nla_put_u32(skb, DRBD_A_DRBD_CFG_CONTEXT_CTX_VOLUME, device->vnr))
goto nla_put_failure;
if (nla_put_string(skb, T_ctx_resource_name, resource->name))
if (nla_put_string(skb, DRBD_A_DRBD_CFG_CONTEXT_CTX_RESOURCE_NAME, resource->name))
goto nla_put_failure;
if (connection) {
if (connection->my_addr_len &&
nla_put(skb, T_ctx_my_addr, connection->my_addr_len, &connection->my_addr))
nla_put(skb, DRBD_A_DRBD_CFG_CONTEXT_CTX_MY_ADDR,
connection->my_addr_len,
&connection->my_addr))
goto nla_put_failure;
if (connection->peer_addr_len &&
nla_put(skb, T_ctx_peer_addr, connection->peer_addr_len, &connection->peer_addr))
nla_put(skb, DRBD_A_DRBD_CFG_CONTEXT_CTX_PEER_ADDR,
connection->peer_addr_len,
&connection->peer_addr))
goto nla_put_failure;
}
nla_nest_end(skb, nla);
@@ -3300,7 +3313,7 @@ nla_put_failure:
*/
static struct nlattr *find_cfg_context_attr(const struct nlmsghdr *nlh, int attr)
{
const unsigned hdrlen = GENL_HDRLEN + GENL_MAGIC_FAMILY_HDRSZ;
const unsigned int hdrlen = GENL_HDRLEN + sizeof(struct drbd_genlmsghdr);
struct nlattr *nla;
nla = nla_find(nlmsg_attrdata(nlh, hdrlen), nlmsg_attrlen(nlh, hdrlen),
@@ -3312,7 +3325,7 @@ static struct nlattr *find_cfg_context_attr(const struct nlmsghdr *nlh, int attr
static void resource_to_info(struct resource_info *, struct drbd_resource *);
int drbd_adm_dump_resources(struct sk_buff *skb, struct netlink_callback *cb)
int drbd_nl_get_resources_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
{
struct drbd_genlmsghdr *dh;
struct drbd_resource *resource;
@@ -3340,7 +3353,7 @@ found_resource:
put_result:
dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, &drbd_genl_family,
cb->nlh->nlmsg_seq, &drbd_nl_family,
NLM_F_MULTI, DRBD_ADM_GET_RESOURCES);
err = -ENOMEM;
if (!dh)
@@ -3350,15 +3363,15 @@ put_result:
err = nla_put_drbd_cfg_context(skb, resource, NULL, NULL);
if (err)
goto out;
err = res_opts_to_skb(skb, &resource->res_opts, !capable(CAP_SYS_ADMIN));
err = res_opts_to_skb(skb, &resource->res_opts);
if (err)
goto out;
resource_to_info(&resource_info, resource);
err = resource_info_to_skb(skb, &resource_info, !capable(CAP_SYS_ADMIN));
err = resource_info_to_skb(skb, &resource_info);
if (err)
goto out;
resource_statistics.res_stat_write_ordering = resource->write_ordering;
err = resource_statistics_to_skb(skb, &resource_statistics, !capable(CAP_SYS_ADMIN));
err = resource_statistics_to_skb(skb, &resource_statistics);
if (err)
goto out;
cb->args[0] = (long)resource;
@@ -3423,7 +3436,7 @@ int drbd_adm_dump_devices_done(struct netlink_callback *cb) {
static void device_to_info(struct device_info *, struct drbd_device *);
int drbd_adm_dump_devices(struct sk_buff *skb, struct netlink_callback *cb)
int drbd_nl_get_devices_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
{
struct nlattr *resource_filter;
struct drbd_resource *resource;
@@ -3436,7 +3449,8 @@ int drbd_adm_dump_devices(struct sk_buff *skb, struct netlink_callback *cb)
resource = (struct drbd_resource *)cb->args[0];
if (!cb->args[0] && !cb->args[1]) {
resource_filter = find_cfg_context_attr(cb->nlh, T_ctx_resource_name);
resource_filter = find_cfg_context_attr(cb->nlh,
DRBD_A_DRBD_CFG_CONTEXT_CTX_RESOURCE_NAME);
if (resource_filter) {
retcode = ERR_RES_NOT_KNOWN;
resource = drbd_find_resource(nla_data(resource_filter));
@@ -3465,7 +3479,7 @@ int drbd_adm_dump_devices(struct sk_buff *skb, struct netlink_callback *cb)
put_result:
dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, &drbd_genl_family,
cb->nlh->nlmsg_seq, &drbd_nl_family,
NLM_F_MULTI, DRBD_ADM_GET_DEVICES);
err = -ENOMEM;
if (!dh)
@@ -3481,18 +3495,18 @@ put_result:
struct disk_conf *disk_conf =
rcu_dereference(device->ldev->disk_conf);
err = disk_conf_to_skb(skb, disk_conf, !capable(CAP_SYS_ADMIN));
err = disk_conf_to_skb(skb, disk_conf);
put_ldev(device);
if (err)
goto out;
}
device_to_info(&device_info, device);
err = device_info_to_skb(skb, &device_info, !capable(CAP_SYS_ADMIN));
err = device_info_to_skb(skb, &device_info);
if (err)
goto out;
device_to_statistics(&device_statistics, device);
err = device_statistics_to_skb(skb, &device_statistics, !capable(CAP_SYS_ADMIN));
err = device_statistics_to_skb(skb, &device_statistics);
if (err)
goto out;
cb->args[1] = minor + 1;
@@ -3514,7 +3528,7 @@ int drbd_adm_dump_connections_done(struct netlink_callback *cb)
enum { SINGLE_RESOURCE, ITERATE_RESOURCES };
int drbd_adm_dump_connections(struct sk_buff *skb, struct netlink_callback *cb)
int drbd_nl_get_connections_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
{
struct nlattr *resource_filter;
struct drbd_resource *resource = NULL, *next_resource;
@@ -3527,7 +3541,8 @@ int drbd_adm_dump_connections(struct sk_buff *skb, struct netlink_callback *cb)
rcu_read_lock();
resource = (struct drbd_resource *)cb->args[0];
if (!cb->args[0]) {
resource_filter = find_cfg_context_attr(cb->nlh, T_ctx_resource_name);
resource_filter = find_cfg_context_attr(cb->nlh,
DRBD_A_DRBD_CFG_CONTEXT_CTX_RESOURCE_NAME);
if (resource_filter) {
retcode = ERR_RES_NOT_KNOWN;
resource = drbd_find_resource(nla_data(resource_filter));
@@ -3591,7 +3606,7 @@ found_resource:
put_result:
dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, &drbd_genl_family,
cb->nlh->nlmsg_seq, &drbd_nl_family,
NLM_F_MULTI, DRBD_ADM_GET_CONNECTIONS);
err = -ENOMEM;
if (!dh)
@@ -3606,16 +3621,16 @@ put_result:
goto out;
net_conf = rcu_dereference(connection->net_conf);
if (net_conf) {
err = net_conf_to_skb(skb, net_conf, !capable(CAP_SYS_ADMIN));
err = net_conf_to_skb(skb, net_conf);
if (err)
goto out;
}
connection_to_info(&connection_info, connection);
err = connection_info_to_skb(skb, &connection_info, !capable(CAP_SYS_ADMIN));
err = connection_info_to_skb(skb, &connection_info);
if (err)
goto out;
connection_statistics.conn_congested = test_bit(NET_CONGESTED, &connection->flags);
err = connection_statistics_to_skb(skb, &connection_statistics, !capable(CAP_SYS_ADMIN));
err = connection_statistics_to_skb(skb, &connection_statistics);
if (err)
goto out;
cb->args[2] = (long)connection;
@@ -3676,7 +3691,7 @@ int drbd_adm_dump_peer_devices_done(struct netlink_callback *cb)
return put_resource_in_arg0(cb, 9);
}
int drbd_adm_dump_peer_devices(struct sk_buff *skb, struct netlink_callback *cb)
int drbd_nl_get_peer_devices_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
{
struct nlattr *resource_filter;
struct drbd_resource *resource;
@@ -3688,7 +3703,8 @@ int drbd_adm_dump_peer_devices(struct sk_buff *skb, struct netlink_callback *cb)
resource = (struct drbd_resource *)cb->args[0];
if (!cb->args[0] && !cb->args[1]) {
resource_filter = find_cfg_context_attr(cb->nlh, T_ctx_resource_name);
resource_filter = find_cfg_context_attr(cb->nlh,
DRBD_A_DRBD_CFG_CONTEXT_CTX_RESOURCE_NAME);
if (resource_filter) {
retcode = ERR_RES_NOT_KNOWN;
resource = drbd_find_resource(nla_data(resource_filter));
@@ -3735,7 +3751,7 @@ found_peer_device:
put_result:
dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, &drbd_genl_family,
cb->nlh->nlmsg_seq, &drbd_nl_family,
NLM_F_MULTI, DRBD_ADM_GET_PEER_DEVICES);
err = -ENOMEM;
if (!dh)
@@ -3751,11 +3767,11 @@ put_result:
if (err)
goto out;
peer_device_to_info(&peer_device_info, peer_device);
err = peer_device_info_to_skb(skb, &peer_device_info, !capable(CAP_SYS_ADMIN));
err = peer_device_info_to_skb(skb, &peer_device_info);
if (err)
goto out;
peer_device_to_statistics(&peer_device_statistics, peer_device);
err = peer_device_statistics_to_skb(skb, &peer_device_statistics, !capable(CAP_SYS_ADMIN));
err = peer_device_statistics_to_skb(skb, &peer_device_statistics);
if (err)
goto out;
cb->args[1] = minor;
@@ -3795,11 +3811,11 @@ static int nla_put_status_info(struct sk_buff *skb, struct drbd_device *device,
/* If sib != NULL, this is drbd_bcast_event, which anyone can listen
* to. So we better exclude_sensitive information.
*
* If sib == NULL, this is drbd_adm_get_status, executed synchronously
* If sib == NULL, this is drbd_nl_get_status_doit, executed synchronously
* in the context of the requesting user process. Exclude sensitive
* information, unless current has superuser.
*
* NOTE: for drbd_adm_get_status_all(), this is a netlink dump, and
* NOTE: for drbd_nl_get_status_dumpit(), this is a netlink dump, and
* relies on the current implementation of netlink_dump(), which
* executes the dump callback successively from netlink_recvmsg(),
* always in the context of the receiving process */
@@ -3812,7 +3828,7 @@ static int nla_put_status_info(struct sk_buff *skb, struct drbd_device *device,
if (nla_put_drbd_cfg_context(skb, resource, the_only_connection(resource), device))
goto nla_put_failure;
if (res_opts_to_skb(skb, &device->resource->res_opts, exclude_sensitive))
if (res_opts_to_skb(skb, &device->resource->res_opts))
goto nla_put_failure;
rcu_read_lock();
@@ -3820,14 +3836,24 @@ static int nla_put_status_info(struct sk_buff *skb, struct drbd_device *device,
struct disk_conf *disk_conf;
disk_conf = rcu_dereference(device->ldev->disk_conf);
err = disk_conf_to_skb(skb, disk_conf, exclude_sensitive);
err = disk_conf_to_skb(skb, disk_conf);
}
if (!err) {
struct net_conf *nc;
nc = rcu_dereference(first_peer_device(device)->connection->net_conf);
if (nc)
err = net_conf_to_skb(skb, nc, exclude_sensitive);
if (nc) {
if (exclude_sensitive) {
struct net_conf nc_clean = *nc;
memset(nc_clean.shared_secret, 0,
sizeof(nc_clean.shared_secret));
nc_clean.shared_secret_len = 0;
err = net_conf_to_skb(skb, &nc_clean);
} else {
err = net_conf_to_skb(skb, nc);
}
}
}
rcu_read_unlock();
if (err)
@@ -3836,42 +3862,57 @@ static int nla_put_status_info(struct sk_buff *skb, struct drbd_device *device,
nla = nla_nest_start_noflag(skb, DRBD_NLA_STATE_INFO);
if (!nla)
goto nla_put_failure;
if (nla_put_u32(skb, T_sib_reason, sib ? sib->sib_reason : SIB_GET_STATUS_REPLY) ||
nla_put_u32(skb, T_current_state, device->state.i) ||
nla_put_u64_0pad(skb, T_ed_uuid, device->ed_uuid) ||
nla_put_u64_0pad(skb, T_capacity, get_capacity(device->vdisk)) ||
nla_put_u64_0pad(skb, T_send_cnt, device->send_cnt) ||
nla_put_u64_0pad(skb, T_recv_cnt, device->recv_cnt) ||
nla_put_u64_0pad(skb, T_read_cnt, device->read_cnt) ||
nla_put_u64_0pad(skb, T_writ_cnt, device->writ_cnt) ||
nla_put_u64_0pad(skb, T_al_writ_cnt, device->al_writ_cnt) ||
nla_put_u64_0pad(skb, T_bm_writ_cnt, device->bm_writ_cnt) ||
nla_put_u32(skb, T_ap_bio_cnt, atomic_read(&device->ap_bio_cnt)) ||
nla_put_u32(skb, T_ap_pending_cnt, atomic_read(&device->ap_pending_cnt)) ||
nla_put_u32(skb, T_rs_pending_cnt, atomic_read(&device->rs_pending_cnt)))
if (nla_put_u32(skb, DRBD_A_STATE_INFO_SIB_REASON,
sib ? sib->sib_reason : SIB_GET_STATUS_REPLY) ||
nla_put_u32(skb, DRBD_A_STATE_INFO_CURRENT_STATE,
device->state.i) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_ED_UUID,
device->ed_uuid, 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_CAPACITY,
get_capacity(device->vdisk), 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_SEND_CNT,
device->send_cnt, 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_RECV_CNT,
device->recv_cnt, 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_READ_CNT,
device->read_cnt, 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_WRIT_CNT,
device->writ_cnt, 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_AL_WRIT_CNT,
device->al_writ_cnt, 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_BM_WRIT_CNT,
device->bm_writ_cnt, 0) ||
nla_put_u32(skb, DRBD_A_STATE_INFO_AP_BIO_CNT,
atomic_read(&device->ap_bio_cnt)) ||
nla_put_u32(skb, DRBD_A_STATE_INFO_AP_PENDING_CNT,
atomic_read(&device->ap_pending_cnt)) ||
nla_put_u32(skb, DRBD_A_STATE_INFO_RS_PENDING_CNT,
atomic_read(&device->rs_pending_cnt)))
goto nla_put_failure;
if (got_ldev) {
int err;
spin_lock_irq(&device->ldev->md.uuid_lock);
err = nla_put(skb, T_uuids, sizeof(si->uuids), device->ldev->md.uuid);
err = nla_put(skb, DRBD_A_STATE_INFO_UUIDS,
sizeof(si->uuids),
device->ldev->md.uuid);
spin_unlock_irq(&device->ldev->md.uuid_lock);
if (err)
goto nla_put_failure;
if (nla_put_u32(skb, T_disk_flags, device->ldev->md.flags) ||
nla_put_u64_0pad(skb, T_bits_total, drbd_bm_bits(device)) ||
nla_put_u64_0pad(skb, T_bits_oos,
drbd_bm_total_weight(device)))
if (nla_put_u32(skb, DRBD_A_STATE_INFO_DISK_FLAGS, device->ldev->md.flags) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_BITS_TOTAL, drbd_bm_bits(device), 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_BITS_OOS,
drbd_bm_total_weight(device), 0))
goto nla_put_failure;
if (C_SYNC_SOURCE <= device->state.conn &&
C_PAUSED_SYNC_T >= device->state.conn) {
if (nla_put_u64_0pad(skb, T_bits_rs_total,
device->rs_total) ||
nla_put_u64_0pad(skb, T_bits_rs_failed,
device->rs_failed))
if (nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_BITS_RS_TOTAL,
device->rs_total, 0) ||
nla_put_u64_64bit(skb, DRBD_A_STATE_INFO_BITS_RS_FAILED,
device->rs_failed, 0))
goto nla_put_failure;
}
}
@@ -3882,17 +3923,17 @@ static int nla_put_status_info(struct sk_buff *skb, struct drbd_device *device,
case SIB_GET_STATUS_REPLY:
break;
case SIB_STATE_CHANGE:
if (nla_put_u32(skb, T_prev_state, sib->os.i) ||
nla_put_u32(skb, T_new_state, sib->ns.i))
if (nla_put_u32(skb, DRBD_A_STATE_INFO_PREV_STATE, sib->os.i) ||
nla_put_u32(skb, DRBD_A_STATE_INFO_NEW_STATE, sib->ns.i))
goto nla_put_failure;
break;
case SIB_HELPER_POST:
if (nla_put_u32(skb, T_helper_exit_code,
if (nla_put_u32(skb, DRBD_A_STATE_INFO_HELPER_EXIT_CODE,
sib->helper_exit_code))
goto nla_put_failure;
fallthrough;
case SIB_HELPER_PRE:
if (nla_put_string(skb, T_helper, sib->helper_name))
if (nla_put_string(skb, DRBD_A_STATE_INFO_HELPER, sib->helper_name))
goto nla_put_failure;
break;
}
@@ -3907,7 +3948,7 @@ nla_put_failure:
return err;
}
int drbd_adm_get_status(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_get_status_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
@@ -3997,7 +4038,7 @@ next_resource:
}
dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, &drbd_genl_family,
cb->nlh->nlmsg_seq, &drbd_nl_family,
NLM_F_MULTI, DRBD_ADM_GET_STATUS);
if (!dh)
goto out;
@@ -4017,7 +4058,7 @@ next_resource:
struct net_conf *nc;
nc = rcu_dereference(connection->net_conf);
if (nc && net_conf_to_skb(skb, nc, 1) != 0)
if (nc && net_conf_to_skb(skb, nc) != 0)
goto cancel;
}
goto done;
@@ -4059,9 +4100,9 @@ out:
*
* Once things are setup properly, we call into get_one_status().
*/
int drbd_adm_get_status_all(struct sk_buff *skb, struct netlink_callback *cb)
int drbd_nl_get_status_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
{
const unsigned hdrlen = GENL_HDRLEN + GENL_MAGIC_FAMILY_HDRSZ;
const unsigned int hdrlen = GENL_HDRLEN + sizeof(struct drbd_genlmsghdr);
struct nlattr *nla;
const char *resource_name;
struct drbd_resource *resource;
@@ -4084,7 +4125,7 @@ int drbd_adm_get_status_all(struct sk_buff *skb, struct netlink_callback *cb)
/* No explicit context given. Dump all. */
if (!nla)
goto dump;
nla = nla_find_nested(nla, T_ctx_resource_name);
nla = nla_find_nested(nla, DRBD_A_DRBD_CFG_CONTEXT_CTX_RESOURCE_NAME);
/* context given, but no name present? */
if (!nla)
return -EINVAL;
@@ -4107,7 +4148,7 @@ dump:
return get_one_status(skb, cb);
}
int drbd_adm_get_timeout_type(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_get_timeout_type_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
@@ -4125,7 +4166,7 @@ int drbd_adm_get_timeout_type(struct sk_buff *skb, struct genl_info *info)
test_bit(USE_DEGR_WFC_T, &adm_ctx->device->flags) ? UT_DEGRADED :
UT_DEFAULT;
err = timeout_parms_to_priv_skb(adm_ctx->reply_skb, &tp);
err = timeout_parms_to_skb(adm_ctx->reply_skb, &tp);
if (err) {
nlmsg_free(adm_ctx->reply_skb);
adm_ctx->reply_skb = NULL;
@@ -4136,7 +4177,7 @@ out:
return 0;
}
int drbd_adm_start_ov(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_start_ov_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_device *device;
@@ -4182,7 +4223,7 @@ out:
}
int drbd_adm_new_c_uuid(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_new_c_uuid_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_device *device;
@@ -4285,7 +4326,7 @@ static void resource_to_info(struct resource_info *info,
info->res_susp_fen = resource->susp_fen;
}
int drbd_adm_new_resource(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_new_resource_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_connection *connection;
struct drbd_config_context *adm_ctx = info->user_ptr[0];
@@ -4348,7 +4389,7 @@ static void device_to_info(struct device_info *info,
}
int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_new_minor_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_genlmsghdr *dh = genl_info_userhdr(info);
@@ -4455,7 +4496,7 @@ static enum drbd_ret_code adm_del_minor(struct drbd_device *device)
return ERR_MINOR_CONFIGURED;
}
int drbd_adm_del_minor(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_del_minor_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
enum drbd_ret_code retcode;
@@ -4504,7 +4545,7 @@ static int adm_del_resource(struct drbd_resource *resource)
return NO_ERROR;
}
int drbd_adm_down(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_down_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_resource *resource;
@@ -4567,7 +4608,7 @@ finish:
return 0;
}
int drbd_adm_del_resource(struct sk_buff *skb, struct genl_info *info)
int drbd_nl_del_resource_doit(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context *adm_ctx = info->user_ptr[0];
struct drbd_resource *resource;
@@ -4601,7 +4642,7 @@ void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
goto failed;
err = -EMSGSIZE;
d_out = genlmsg_put(msg, 0, seq, &drbd_genl_family, 0, DRBD_EVENT);
d_out = genlmsg_put(msg, 0, seq, &drbd_nl_family, 0, DRBD_ADM_EVENT);
if (!d_out) /* cannot happen, but anyways. */
goto nla_put_failure;
d_out->minor = device_to_minor(device);
@@ -4632,7 +4673,7 @@ static int nla_put_notification_header(struct sk_buff *msg,
.nh_type = type,
};
return drbd_notification_header_to_skb(msg, &nh, true);
return drbd_notification_header_to_skb(msg, &nh);
}
int notify_resource_state(struct sk_buff *skb,
@@ -4656,7 +4697,7 @@ int notify_resource_state(struct sk_buff *skb,
}
err = -EMSGSIZE;
dh = genlmsg_put(skb, 0, seq, &drbd_genl_family, 0, DRBD_RESOURCE_STATE);
dh = genlmsg_put(skb, 0, seq, &drbd_nl_family, 0, DRBD_ADM_RESOURCE_STATE);
if (!dh)
goto nla_put_failure;
dh->minor = -1U;
@@ -4664,10 +4705,10 @@ int notify_resource_state(struct sk_buff *skb,
if (nla_put_drbd_cfg_context(skb, resource, NULL, NULL) ||
nla_put_notification_header(skb, type) ||
((type & ~NOTIFY_FLAGS) != NOTIFY_DESTROY &&
resource_info_to_skb(skb, resource_info, true)))
resource_info_to_skb(skb, resource_info)))
goto nla_put_failure;
resource_statistics.res_stat_write_ordering = resource->write_ordering;
err = resource_statistics_to_skb(skb, &resource_statistics, !capable(CAP_SYS_ADMIN));
err = resource_statistics_to_skb(skb, &resource_statistics);
if (err)
goto nla_put_failure;
genlmsg_end(skb, dh);
@@ -4708,7 +4749,7 @@ int notify_device_state(struct sk_buff *skb,
}
err = -EMSGSIZE;
dh = genlmsg_put(skb, 0, seq, &drbd_genl_family, 0, DRBD_DEVICE_STATE);
dh = genlmsg_put(skb, 0, seq, &drbd_nl_family, 0, DRBD_ADM_DEVICE_STATE);
if (!dh)
goto nla_put_failure;
dh->minor = device->minor;
@@ -4716,10 +4757,10 @@ int notify_device_state(struct sk_buff *skb,
if (nla_put_drbd_cfg_context(skb, device->resource, NULL, device) ||
nla_put_notification_header(skb, type) ||
((type & ~NOTIFY_FLAGS) != NOTIFY_DESTROY &&
device_info_to_skb(skb, device_info, true)))
device_info_to_skb(skb, device_info)))
goto nla_put_failure;
device_to_statistics(&device_statistics, device);
device_statistics_to_skb(skb, &device_statistics, !capable(CAP_SYS_ADMIN));
device_statistics_to_skb(skb, &device_statistics);
genlmsg_end(skb, dh);
if (multicast) {
err = drbd_genl_multicast_events(skb, GFP_NOWAIT);
@@ -4758,7 +4799,7 @@ int notify_connection_state(struct sk_buff *skb,
}
err = -EMSGSIZE;
dh = genlmsg_put(skb, 0, seq, &drbd_genl_family, 0, DRBD_CONNECTION_STATE);
dh = genlmsg_put(skb, 0, seq, &drbd_nl_family, 0, DRBD_ADM_CONNECTION_STATE);
if (!dh)
goto nla_put_failure;
dh->minor = -1U;
@@ -4766,10 +4807,10 @@ int notify_connection_state(struct sk_buff *skb,
if (nla_put_drbd_cfg_context(skb, connection->resource, connection, NULL) ||
nla_put_notification_header(skb, type) ||
((type & ~NOTIFY_FLAGS) != NOTIFY_DESTROY &&
connection_info_to_skb(skb, connection_info, true)))
connection_info_to_skb(skb, connection_info)))
goto nla_put_failure;
connection_statistics.conn_congested = test_bit(NET_CONGESTED, &connection->flags);
connection_statistics_to_skb(skb, &connection_statistics, !capable(CAP_SYS_ADMIN));
connection_statistics_to_skb(skb, &connection_statistics);
genlmsg_end(skb, dh);
if (multicast) {
err = drbd_genl_multicast_events(skb, GFP_NOWAIT);
@@ -4809,7 +4850,7 @@ int notify_peer_device_state(struct sk_buff *skb,
}
err = -EMSGSIZE;
dh = genlmsg_put(skb, 0, seq, &drbd_genl_family, 0, DRBD_PEER_DEVICE_STATE);
dh = genlmsg_put(skb, 0, seq, &drbd_nl_family, 0, DRBD_ADM_PEER_DEVICE_STATE);
if (!dh)
goto nla_put_failure;
dh->minor = -1U;
@@ -4817,10 +4858,10 @@ int notify_peer_device_state(struct sk_buff *skb,
if (nla_put_drbd_cfg_context(skb, resource, peer_device->connection, peer_device->device) ||
nla_put_notification_header(skb, type) ||
((type & ~NOTIFY_FLAGS) != NOTIFY_DESTROY &&
peer_device_info_to_skb(skb, peer_device_info, true)))
peer_device_info_to_skb(skb, peer_device_info)))
goto nla_put_failure;
peer_device_to_statistics(&peer_device_statistics, peer_device);
peer_device_statistics_to_skb(skb, &peer_device_statistics, !capable(CAP_SYS_ADMIN));
peer_device_statistics_to_skb(skb, &peer_device_statistics);
genlmsg_end(skb, dh);
if (multicast) {
err = drbd_genl_multicast_events(skb, GFP_NOWAIT);
@@ -4859,7 +4900,7 @@ void notify_helper(enum drbd_notification_type type,
goto fail;
err = -EMSGSIZE;
dh = genlmsg_put(skb, 0, seq, &drbd_genl_family, 0, DRBD_HELPER);
dh = genlmsg_put(skb, 0, seq, &drbd_nl_family, 0, DRBD_ADM_HELPER);
if (!dh)
goto fail;
dh->minor = device ? device->minor : -1;
@@ -4867,7 +4908,7 @@ void notify_helper(enum drbd_notification_type type,
mutex_lock(&notification_mutex);
if (nla_put_drbd_cfg_context(skb, resource, connection, device) ||
nla_put_notification_header(skb, type) ||
drbd_helper_info_to_skb(skb, &helper_info, true))
drbd_helper_info_to_skb(skb, &helper_info))
goto unlock_fail;
genlmsg_end(skb, dh);
err = drbd_genl_multicast_events(skb, GFP_NOWAIT);
@@ -4892,7 +4933,7 @@ static int notify_initial_state_done(struct sk_buff *skb, unsigned int seq)
int err;
err = -EMSGSIZE;
dh = genlmsg_put(skb, 0, seq, &drbd_genl_family, 0, DRBD_INITIAL_STATE_DONE);
dh = genlmsg_put(skb, 0, seq, &drbd_nl_family, 0, DRBD_ADM_INITIAL_STATE_DONE);
if (!dh)
goto nla_put_failure;
dh->minor = -1U;
@@ -4987,7 +5028,7 @@ out:
return skb->len;
}
int drbd_adm_get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
int drbd_nl_get_initial_state_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
{
struct drbd_resource *resource;
LIST_HEAD(head);
@@ -5035,3 +5076,20 @@ int drbd_adm_get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
cb->args[2] = cb->nlh->nlmsg_seq;
return get_initial_state(skb, cb);
}
static const struct genl_multicast_group drbd_nl_mcgrps[] = {
[DRBD_NLGRP_EVENTS] = { .name = "events", },
};
struct genl_family drbd_nl_family __ro_after_init = {
.name = "drbd",
.version = DRBD_FAMILY_VERSION,
.hdrsize = NLA_ALIGN(sizeof(struct drbd_genlmsghdr)),
.split_ops = drbd_nl_ops,
.n_split_ops = ARRAY_SIZE(drbd_nl_ops),
.mcgrps = drbd_nl_mcgrps,
.n_mcgrps = ARRAY_SIZE(drbd_nl_mcgrps),
.resv_start_op = 42,
.module = THIS_MODULE,
.netnsok = true,
};
drivers/block/drbd/drbd_nl_gen.c
+2606
View File
File diff suppressed because it is too large Load Diff
drivers/block/drbd/drbd_nl_gen.h
+395
View File
@@ -0,0 +1,395 @@
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
#ifndef _LINUX_DRBD_GEN_H
#define _LINUX_DRBD_GEN_H
#include <net/netlink.h>
#include <net/genetlink.h>
#include <uapi/linux/drbd_genl.h>
#include <linux/drbd.h>
#include <linux/drbd_limits.h>
/* Common nested types */
extern const struct nla_policy drbd_connection_info_nl_policy[DRBD_A_CONNECTION_INFO_CONN_ROLE + 1];
extern const struct nla_policy drbd_connection_statistics_nl_policy[DRBD_A_CONNECTION_STATISTICS_CONN_CONGESTED + 1];
extern const struct nla_policy drbd_detach_parms_nl_policy[DRBD_A_DETACH_PARMS_FORCE_DETACH + 1];
extern const struct nla_policy drbd_device_info_nl_policy[DRBD_A_DEVICE_INFO_DEV_DISK_STATE + 1];
extern const struct nla_policy drbd_device_statistics_nl_policy[DRBD_A_DEVICE_STATISTICS_HISTORY_UUIDS + 1];
extern const struct nla_policy drbd_disconnect_parms_nl_policy[DRBD_A_DISCONNECT_PARMS_FORCE_DISCONNECT + 1];
extern const struct nla_policy drbd_disk_conf_nl_policy[DRBD_A_DISK_CONF_DISABLE_WRITE_SAME + 1];
extern const struct nla_policy drbd_drbd_cfg_context_nl_policy[DRBD_A_DRBD_CFG_CONTEXT_CTX_PEER_ADDR + 1];
extern const struct nla_policy drbd_net_conf_nl_policy[DRBD_A_NET_CONF_SOCK_CHECK_TIMEO + 1];
extern const struct nla_policy drbd_new_c_uuid_parms_nl_policy[DRBD_A_NEW_C_UUID_PARMS_CLEAR_BM + 1];
extern const struct nla_policy drbd_peer_device_info_nl_policy[DRBD_A_PEER_DEVICE_INFO_PEER_RESYNC_SUSP_DEPENDENCY + 1];
extern const struct nla_policy drbd_peer_device_statistics_nl_policy[DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_FLAGS + 1];
extern const struct nla_policy drbd_res_opts_nl_policy[DRBD_A_RES_OPTS_ON_NO_DATA + 1];
extern const struct nla_policy drbd_resize_parms_nl_policy[DRBD_A_RESIZE_PARMS_AL_STRIPE_SIZE + 1];
extern const struct nla_policy drbd_resource_info_nl_policy[DRBD_A_RESOURCE_INFO_RES_SUSP_FEN + 1];
extern const struct nla_policy drbd_resource_statistics_nl_policy[DRBD_A_RESOURCE_STATISTICS_RES_STAT_WRITE_ORDERING + 1];
extern const struct nla_policy drbd_set_role_parms_nl_policy[DRBD_A_SET_ROLE_PARMS_ASSUME_UPTODATE + 1];
extern const struct nla_policy drbd_start_ov_parms_nl_policy[DRBD_A_START_OV_PARMS_OV_STOP_SECTOR + 1];
/* Ops table for drbd */
extern const struct genl_split_ops drbd_nl_ops[32];
int drbd_pre_doit(const struct genl_split_ops *ops, struct sk_buff *skb,
struct genl_info *info);
void
drbd_post_doit(const struct genl_split_ops *ops, struct sk_buff *skb,
struct genl_info *info);
int drbd_adm_dump_devices_done(struct netlink_callback *cb);
int drbd_adm_dump_connections_done(struct netlink_callback *cb);
int drbd_adm_dump_peer_devices_done(struct netlink_callback *cb);
int drbd_nl_get_status_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_get_status_dumpit(struct sk_buff *skb, struct netlink_callback *cb);
int drbd_nl_new_minor_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_del_minor_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_new_resource_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_del_resource_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_resource_opts_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_connect_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_disconnect_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_attach_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_resize_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_primary_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_secondary_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_new_c_uuid_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_start_ov_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_detach_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_invalidate_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_inval_peer_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_pause_sync_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_resume_sync_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_suspend_io_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_resume_io_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_outdate_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_get_timeout_type_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_down_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_chg_disk_opts_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_chg_net_opts_doit(struct sk_buff *skb, struct genl_info *info);
int drbd_nl_get_resources_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int drbd_nl_get_devices_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int drbd_nl_get_connections_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int drbd_nl_get_peer_devices_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int drbd_nl_get_initial_state_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
enum {
DRBD_NLGRP_EVENTS,
};
struct drbd_cfg_reply {
char info_text[0];
__u32 info_text_len;
};
struct drbd_cfg_context {
__u32 ctx_volume;
char ctx_resource_name[128];
__u32 ctx_resource_name_len;
char ctx_my_addr[128];
__u32 ctx_my_addr_len;
char ctx_peer_addr[128];
__u32 ctx_peer_addr_len;
};
struct disk_conf {
char backing_dev[128];
__u32 backing_dev_len;
char meta_dev[128];
__u32 meta_dev_len;
__s32 meta_dev_idx;
__u64 disk_size;
__u32 max_bio_bvecs;
__u32 on_io_error;
__u32 fencing;
__u32 resync_rate;
__s32 resync_after;
__u32 al_extents;
__u32 c_plan_ahead;
__u32 c_delay_target;
__u32 c_fill_target;
__u32 c_max_rate;
__u32 c_min_rate;
unsigned char disk_barrier;
unsigned char disk_flushes;
unsigned char disk_drain;
unsigned char md_flushes;
__u32 disk_timeout;
__u32 read_balancing;
unsigned char al_updates;
unsigned char discard_zeroes_if_aligned;
__u32 rs_discard_granularity;
unsigned char disable_write_same;
};
struct res_opts {
char cpu_mask[DRBD_CPU_MASK_SIZE];
__u32 cpu_mask_len;
__u32 on_no_data;
};
struct net_conf {
char shared_secret[SHARED_SECRET_MAX];
__u32 shared_secret_len;
char cram_hmac_alg[SHARED_SECRET_MAX];
__u32 cram_hmac_alg_len;
char integrity_alg[SHARED_SECRET_MAX];
__u32 integrity_alg_len;
char verify_alg[SHARED_SECRET_MAX];
__u32 verify_alg_len;
char csums_alg[SHARED_SECRET_MAX];
__u32 csums_alg_len;
__u32 wire_protocol;
__u32 connect_int;
__u32 timeout;
__u32 ping_int;
__u32 ping_timeo;
__u32 sndbuf_size;
__u32 rcvbuf_size;
__u32 ko_count;
__u32 max_buffers;
__u32 max_epoch_size;
__u32 unplug_watermark;
__u32 after_sb_0p;
__u32 after_sb_1p;
__u32 after_sb_2p;
__u32 rr_conflict;
__u32 on_congestion;
__u32 cong_fill;
__u32 cong_extents;
unsigned char two_primaries;
unsigned char discard_my_data;
unsigned char tcp_cork;
unsigned char always_asbp;
unsigned char tentative;
unsigned char use_rle;
unsigned char csums_after_crash_only;
__u32 sock_check_timeo;
};
struct set_role_parms {
unsigned char assume_uptodate;
};
struct resize_parms {
__u64 resize_size;
unsigned char resize_force;
unsigned char no_resync;
__u32 al_stripes;
__u32 al_stripe_size;
};
struct state_info {
__u32 sib_reason;
__u32 current_state;
__u64 capacity;
__u64 ed_uuid;
__u32 prev_state;
__u32 new_state;
char uuids[DRBD_NL_UUIDS_SIZE];
__u32 uuids_len;
__u32 disk_flags;
__u64 bits_total;
__u64 bits_oos;
__u64 bits_rs_total;
__u64 bits_rs_failed;
char helper[32];
__u32 helper_len;
__u32 helper_exit_code;
__u64 send_cnt;
__u64 recv_cnt;
__u64 read_cnt;
__u64 writ_cnt;
__u64 al_writ_cnt;
__u64 bm_writ_cnt;
__u32 ap_bio_cnt;
__u32 ap_pending_cnt;
__u32 rs_pending_cnt;
};
struct start_ov_parms {
__u64 ov_start_sector;
__u64 ov_stop_sector;
};
struct new_c_uuid_parms {
unsigned char clear_bm;
};
struct timeout_parms {
__u32 timeout_type;
};
struct disconnect_parms {
unsigned char force_disconnect;
};
struct detach_parms {
unsigned char force_detach;
};
struct resource_info {
__u32 res_role;
unsigned char res_susp;
unsigned char res_susp_nod;
unsigned char res_susp_fen;
};
struct device_info {
__u32 dev_disk_state;
};
struct connection_info {
__u32 conn_connection_state;
__u32 conn_role;
};
struct peer_device_info {
__u32 peer_repl_state;
__u32 peer_disk_state;
__u32 peer_resync_susp_user;
__u32 peer_resync_susp_peer;
__u32 peer_resync_susp_dependency;
};
struct resource_statistics {
__u32 res_stat_write_ordering;
};
struct device_statistics {
__u64 dev_size;
__u64 dev_read;
__u64 dev_write;
__u64 dev_al_writes;
__u64 dev_bm_writes;
__u32 dev_upper_pending;
__u32 dev_lower_pending;
unsigned char dev_upper_blocked;
unsigned char dev_lower_blocked;
unsigned char dev_al_suspended;
__u64 dev_exposed_data_uuid;
__u64 dev_current_uuid;
__u32 dev_disk_flags;
char history_uuids[DRBD_NL_HISTORY_UUIDS_SIZE];
__u32 history_uuids_len;
};
struct connection_statistics {
unsigned char conn_congested;
};
struct peer_device_statistics {
__u64 peer_dev_received;
__u64 peer_dev_sent;
__u32 peer_dev_pending;
__u32 peer_dev_unacked;
__u64 peer_dev_out_of_sync;
__u64 peer_dev_resync_failed;
__u64 peer_dev_bitmap_uuid;
__u32 peer_dev_flags;
};
struct drbd_notification_header {
__u32 nh_type;
};
struct drbd_helper_info {
char helper_name[32];
__u32 helper_name_len;
__u32 helper_status;
};
int drbd_cfg_reply_to_skb(struct sk_buff *skb, struct drbd_cfg_reply *s);
int drbd_cfg_context_from_attrs(struct drbd_cfg_context *s, struct genl_info *info);
int drbd_cfg_context_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int drbd_cfg_context_to_skb(struct sk_buff *skb, struct drbd_cfg_context *s);
int disk_conf_from_attrs(struct disk_conf *s, struct genl_info *info);
int disk_conf_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int disk_conf_to_skb(struct sk_buff *skb, struct disk_conf *s);
void set_disk_conf_defaults(struct disk_conf *x);
int res_opts_from_attrs(struct res_opts *s, struct genl_info *info);
int res_opts_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int res_opts_to_skb(struct sk_buff *skb, struct res_opts *s);
void set_res_opts_defaults(struct res_opts *x);
int net_conf_from_attrs(struct net_conf *s, struct genl_info *info);
int net_conf_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int net_conf_to_skb(struct sk_buff *skb, struct net_conf *s);
void set_net_conf_defaults(struct net_conf *x);
int set_role_parms_from_attrs(struct set_role_parms *s, struct genl_info *info);
int set_role_parms_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int set_role_parms_to_skb(struct sk_buff *skb, struct set_role_parms *s);
int resize_parms_from_attrs(struct resize_parms *s, struct genl_info *info);
int resize_parms_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int resize_parms_to_skb(struct sk_buff *skb, struct resize_parms *s);
void set_resize_parms_defaults(struct resize_parms *x);
int state_info_to_skb(struct sk_buff *skb, struct state_info *s);
int start_ov_parms_from_attrs(struct start_ov_parms *s, struct genl_info *info);
int start_ov_parms_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int start_ov_parms_to_skb(struct sk_buff *skb, struct start_ov_parms *s);
int new_c_uuid_parms_from_attrs(struct new_c_uuid_parms *s, struct genl_info *info);
int new_c_uuid_parms_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int new_c_uuid_parms_to_skb(struct sk_buff *skb, struct new_c_uuid_parms *s);
int timeout_parms_to_skb(struct sk_buff *skb, struct timeout_parms *s);
int disconnect_parms_from_attrs(struct disconnect_parms *s, struct genl_info *info);
int disconnect_parms_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int disconnect_parms_to_skb(struct sk_buff *skb, struct disconnect_parms *s);
int detach_parms_from_attrs(struct detach_parms *s, struct genl_info *info);
int detach_parms_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int detach_parms_to_skb(struct sk_buff *skb, struct detach_parms *s);
int resource_info_from_attrs(struct resource_info *s, struct genl_info *info);
int resource_info_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int resource_info_to_skb(struct sk_buff *skb, struct resource_info *s);
int device_info_from_attrs(struct device_info *s, struct genl_info *info);
int device_info_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int device_info_to_skb(struct sk_buff *skb, struct device_info *s);
int connection_info_from_attrs(struct connection_info *s, struct genl_info *info);
int connection_info_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int connection_info_to_skb(struct sk_buff *skb, struct connection_info *s);
int peer_device_info_from_attrs(struct peer_device_info *s, struct genl_info *info);
int peer_device_info_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int peer_device_info_to_skb(struct sk_buff *skb, struct peer_device_info *s);
int resource_statistics_from_attrs(struct resource_statistics *s, struct genl_info *info);
int resource_statistics_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int resource_statistics_to_skb(struct sk_buff *skb, struct resource_statistics *s);
int device_statistics_from_attrs(struct device_statistics *s, struct genl_info *info);
int device_statistics_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int device_statistics_to_skb(struct sk_buff *skb, struct device_statistics *s);
int connection_statistics_from_attrs(struct connection_statistics *s, struct genl_info *info);
int connection_statistics_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int connection_statistics_to_skb(struct sk_buff *skb, struct connection_statistics *s);
int peer_device_statistics_from_attrs(struct peer_device_statistics *s, struct genl_info *info);
int peer_device_statistics_ntb_from_attrs(struct nlattr ***ret_nested_attribute_table, struct genl_info *info);
int peer_device_statistics_to_skb(struct sk_buff *skb, struct peer_device_statistics *s);
int drbd_notification_header_to_skb(struct sk_buff *skb, struct drbd_notification_header *s);
int drbd_helper_info_to_skb(struct sk_buff *skb, struct drbd_helper_info *s);
#endif /* _LINUX_DRBD_GEN_H */
drivers/block/drbd/drbd_proc.c
+1 -1
View File
@@ -228,7 +228,7 @@ int drbd_seq_show(struct seq_file *seq, void *v)
};
seq_printf(seq, "version: " REL_VERSION " (api:%d/proto:%d-%d)\n%s\n",
GENL_MAGIC_VERSION, PRO_VERSION_MIN, PRO_VERSION_MAX, drbd_buildtag());
DRBD_FAMILY_VERSION, PRO_VERSION_MIN, PRO_VERSION_MAX, drbd_buildtag());
/*
cs .. connection state
include/linux/drbd_genl.h
-536
View File
@@ -1,536 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* General overview:
* full generic netlink message:
* |nlmsghdr|genlmsghdr|<payload>
*
* payload:
* |optional fixed size family header|<sequence of netlink attributes>
*
* sequence of netlink attributes:
* I chose to have all "top level" attributes NLA_NESTED,
* corresponding to some real struct.
* So we have a sequence of |tla, len|<nested nla sequence>
*
* nested nla sequence:
* may be empty, or contain a sequence of netlink attributes
* representing the struct fields.
*
* The tag number of any field (regardless of containing struct)
* will be available as T_ ## field_name,
* so you cannot have the same field name in two differnt structs.
*
* The tag numbers themselves are per struct, though,
* so should always begin at 1 (not 0, that is the special "NLA_UNSPEC" type,
* which we won't use here).
* The tag numbers are used as index in the respective nla_policy array.
*
* GENL_struct(tag_name, tag_number, struct name, struct fields) - struct and policy
* genl_magic_struct.h
* generates the struct declaration,
* generates an entry in the tla enum,
* genl_magic_func.h
* generates an entry in the static tla policy
* with .type = NLA_NESTED
* generates the static <struct_name>_nl_policy definition,
* and static conversion functions
*
* genl_magic_func.h
*
* GENL_mc_group(group)
* genl_magic_struct.h
* does nothing
* genl_magic_func.h
* defines and registers the mcast group,
* and provides a send helper
*
* GENL_notification(op_name, op_num, mcast_group, tla list)
* These are notifications to userspace.
*
* genl_magic_struct.h
* generates an entry in the genl_ops enum,
* genl_magic_func.h
* does nothing
*
* mcast group: the name of the mcast group this notification should be
* expected on
* tla list: the list of expected top level attributes,
* for documentation and sanity checking.
*
* GENL_op(op_name, op_num, flags and handler, tla list) - "genl operations"
* These are requests from userspace.
*
* _op and _notification share the same "number space",
* op_nr will be assigned to "genlmsghdr->cmd"
*
* genl_magic_struct.h
* generates an entry in the genl_ops enum,
* genl_magic_func.h
* generates an entry in the static genl_ops array,
* and static register/unregister functions to
* genl_register_family().
*
* flags and handler:
* GENL_op_init( .doit = x, .dumpit = y, .flags = something)
* GENL_doit(x) => .dumpit = NULL, .flags = GENL_ADMIN_PERM
* tla list: the list of expected top level attributes,
* for documentation and sanity checking.
*/
/*
* STRUCTS
*/
/* this is sent kernel -> userland on various error conditions, and contains
* informational textual info, which is supposedly human readable.
* The computer relevant return code is in the drbd_genlmsghdr.
*/
GENL_struct(DRBD_NLA_CFG_REPLY, 1, drbd_cfg_reply,
/* "arbitrary" size strings, nla_policy.len = 0 */
__str_field(1, 0, info_text, 0)
)
/* Configuration requests typically need a context to operate on.
* Possible keys are device minor (fits in the drbd_genlmsghdr),
* the replication link (aka connection) name,
* and/or the replication group (aka resource) name,
* and the volume id within the resource. */
GENL_struct(DRBD_NLA_CFG_CONTEXT, 2, drbd_cfg_context,
__u32_field(1, 0, ctx_volume)
__str_field(2, 0, ctx_resource_name, 128)
__bin_field(3, 0, ctx_my_addr, 128)
__bin_field(4, 0, ctx_peer_addr, 128)
)
GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
__str_field(1, DRBD_F_REQUIRED | DRBD_F_INVARIANT, backing_dev, 128)
__str_field(2, DRBD_F_REQUIRED | DRBD_F_INVARIANT, meta_dev, 128)
__s32_field(3, DRBD_F_REQUIRED | DRBD_F_INVARIANT, meta_dev_idx)
/* use the resize command to try and change the disk_size */
__u64_field(4, DRBD_F_INVARIANT, disk_size)
/* we could change the max_bio_bvecs,
* but it won't propagate through the stack */
__u32_field(5, DRBD_F_INVARIANT, max_bio_bvecs)
__u32_field_def(6, 0, on_io_error, DRBD_ON_IO_ERROR_DEF)
__u32_field_def(7, 0, fencing, DRBD_FENCING_DEF)
__u32_field_def(8, 0, resync_rate, DRBD_RESYNC_RATE_DEF)
__s32_field_def(9, 0, resync_after, DRBD_MINOR_NUMBER_DEF)
__u32_field_def(10, 0, al_extents, DRBD_AL_EXTENTS_DEF)
__u32_field_def(11, 0, c_plan_ahead, DRBD_C_PLAN_AHEAD_DEF)
__u32_field_def(12, 0, c_delay_target, DRBD_C_DELAY_TARGET_DEF)
__u32_field_def(13, 0, c_fill_target, DRBD_C_FILL_TARGET_DEF)
__u32_field_def(14, 0, c_max_rate, DRBD_C_MAX_RATE_DEF)
__u32_field_def(15, 0, c_min_rate, DRBD_C_MIN_RATE_DEF)
__u32_field_def(20, 0, disk_timeout, DRBD_DISK_TIMEOUT_DEF)
__u32_field_def(21, 0 /* OPTIONAL */, read_balancing, DRBD_READ_BALANCING_DEF)
__u32_field_def(25, 0 /* OPTIONAL */, rs_discard_granularity, DRBD_RS_DISCARD_GRANULARITY_DEF)
__flg_field_def(16, 0, disk_barrier, DRBD_DISK_BARRIER_DEF)
__flg_field_def(17, 0, disk_flushes, DRBD_DISK_FLUSHES_DEF)
__flg_field_def(18, 0, disk_drain, DRBD_DISK_DRAIN_DEF)
__flg_field_def(19, 0, md_flushes, DRBD_MD_FLUSHES_DEF)
__flg_field_def(23, 0 /* OPTIONAL */, al_updates, DRBD_AL_UPDATES_DEF)
__flg_field_def(24, 0 /* OPTIONAL */, discard_zeroes_if_aligned, DRBD_DISCARD_ZEROES_IF_ALIGNED_DEF)
__flg_field_def(26, 0 /* OPTIONAL */, disable_write_same, DRBD_DISABLE_WRITE_SAME_DEF)
)
GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts,
__str_field_def(1, 0, cpu_mask, DRBD_CPU_MASK_SIZE)
__u32_field_def(2, 0, on_no_data, DRBD_ON_NO_DATA_DEF)
)
GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
__str_field_def(1, DRBD_F_SENSITIVE,
shared_secret, SHARED_SECRET_MAX)
__str_field_def(2, 0, cram_hmac_alg, SHARED_SECRET_MAX)
__str_field_def(3, 0, integrity_alg, SHARED_SECRET_MAX)
__str_field_def(4, 0, verify_alg, SHARED_SECRET_MAX)
__str_field_def(5, 0, csums_alg, SHARED_SECRET_MAX)
__u32_field_def(6, 0, wire_protocol, DRBD_PROTOCOL_DEF)
__u32_field_def(7, 0, connect_int, DRBD_CONNECT_INT_DEF)
__u32_field_def(8, 0, timeout, DRBD_TIMEOUT_DEF)
__u32_field_def(9, 0, ping_int, DRBD_PING_INT_DEF)
__u32_field_def(10, 0, ping_timeo, DRBD_PING_TIMEO_DEF)
__u32_field_def(11, 0, sndbuf_size, DRBD_SNDBUF_SIZE_DEF)
__u32_field_def(12, 0, rcvbuf_size, DRBD_RCVBUF_SIZE_DEF)
__u32_field_def(13, 0, ko_count, DRBD_KO_COUNT_DEF)
__u32_field_def(14, 0, max_buffers, DRBD_MAX_BUFFERS_DEF)
__u32_field_def(15, 0, max_epoch_size, DRBD_MAX_EPOCH_SIZE_DEF)
__u32_field_def(16, 0, unplug_watermark, DRBD_UNPLUG_WATERMARK_DEF)
__u32_field_def(17, 0, after_sb_0p, DRBD_AFTER_SB_0P_DEF)
__u32_field_def(18, 0, after_sb_1p, DRBD_AFTER_SB_1P_DEF)
__u32_field_def(19, 0, after_sb_2p, DRBD_AFTER_SB_2P_DEF)
__u32_field_def(20, 0, rr_conflict, DRBD_RR_CONFLICT_DEF)
__u32_field_def(21, 0, on_congestion, DRBD_ON_CONGESTION_DEF)
__u32_field_def(22, 0, cong_fill, DRBD_CONG_FILL_DEF)
__u32_field_def(23, 0, cong_extents, DRBD_CONG_EXTENTS_DEF)
__flg_field_def(24, 0, two_primaries, DRBD_ALLOW_TWO_PRIMARIES_DEF)
__flg_field(25, DRBD_F_INVARIANT, discard_my_data)
__flg_field_def(26, 0, tcp_cork, DRBD_TCP_CORK_DEF)
__flg_field_def(27, 0, always_asbp, DRBD_ALWAYS_ASBP_DEF)
__flg_field(28, DRBD_F_INVARIANT, tentative)
__flg_field_def(29, 0, use_rle, DRBD_USE_RLE_DEF)
/* 9: __u32_field_def(30, 0, fencing_policy, DRBD_FENCING_DEF) */
/* 9: __str_field_def(31, 0, name, SHARED_SECRET_MAX) */
/* 9: __u32_field(32, DRBD_F_REQUIRED | DRBD_F_INVARIANT, peer_node_id) */
__flg_field_def(33, 0 /* OPTIONAL */, csums_after_crash_only, DRBD_CSUMS_AFTER_CRASH_ONLY_DEF)
__u32_field_def(34, 0 /* OPTIONAL */, sock_check_timeo, DRBD_SOCKET_CHECK_TIMEO_DEF)
)
GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms,
__flg_field(1, 0, assume_uptodate)
)
GENL_struct(DRBD_NLA_RESIZE_PARMS, 7, resize_parms,
__u64_field(1, 0, resize_size)
__flg_field(2, 0, resize_force)
__flg_field(3, 0, no_resync)
__u32_field_def(4, 0 /* OPTIONAL */, al_stripes, DRBD_AL_STRIPES_DEF)
__u32_field_def(5, 0 /* OPTIONAL */, al_stripe_size, DRBD_AL_STRIPE_SIZE_DEF)
)
GENL_struct(DRBD_NLA_STATE_INFO, 8, state_info,
/* the reason of the broadcast,
* if this is an event triggered broadcast. */
__u32_field(1, 0, sib_reason)
__u32_field(2, DRBD_F_REQUIRED, current_state)
__u64_field(3, 0, capacity)
__u64_field(4, 0, ed_uuid)
/* These are for broadcast from after state change work.
* prev_state and new_state are from the moment the state change took
* place, new_state is not neccessarily the same as current_state,
* there may have been more state changes since. Which will be
* broadcasted soon, in their respective after state change work. */
__u32_field(5, 0, prev_state)
__u32_field(6, 0, new_state)
/* if we have a local disk: */
__bin_field(7, 0, uuids, (UI_SIZE*sizeof(__u64)))
__u32_field(8, 0, disk_flags)
__u64_field(9, 0, bits_total)
__u64_field(10, 0, bits_oos)
/* and in case resync or online verify is active */
__u64_field(11, 0, bits_rs_total)
__u64_field(12, 0, bits_rs_failed)
/* for pre and post notifications of helper execution */
__str_field(13, 0, helper, 32)
__u32_field(14, 0, helper_exit_code)
__u64_field(15, 0, send_cnt)
__u64_field(16, 0, recv_cnt)
__u64_field(17, 0, read_cnt)
__u64_field(18, 0, writ_cnt)
__u64_field(19, 0, al_writ_cnt)
__u64_field(20, 0, bm_writ_cnt)
__u32_field(21, 0, ap_bio_cnt)
__u32_field(22, 0, ap_pending_cnt)
__u32_field(23, 0, rs_pending_cnt)
)
GENL_struct(DRBD_NLA_START_OV_PARMS, 9, start_ov_parms,
__u64_field(1, 0, ov_start_sector)
__u64_field(2, 0, ov_stop_sector)
)
GENL_struct(DRBD_NLA_NEW_C_UUID_PARMS, 10, new_c_uuid_parms,
__flg_field(1, 0, clear_bm)
)
GENL_struct(DRBD_NLA_TIMEOUT_PARMS, 11, timeout_parms,
__u32_field(1, DRBD_F_REQUIRED, timeout_type)
)
GENL_struct(DRBD_NLA_DISCONNECT_PARMS, 12, disconnect_parms,
__flg_field(1, 0, force_disconnect)
)
GENL_struct(DRBD_NLA_DETACH_PARMS, 13, detach_parms,
__flg_field(1, 0, force_detach)
)
GENL_struct(DRBD_NLA_RESOURCE_INFO, 15, resource_info,
__u32_field(1, 0, res_role)
__flg_field(2, 0, res_susp)
__flg_field(3, 0, res_susp_nod)
__flg_field(4, 0, res_susp_fen)
/* __flg_field(5, 0, res_weak) */
)
GENL_struct(DRBD_NLA_DEVICE_INFO, 16, device_info,
__u32_field(1, 0, dev_disk_state)
)
GENL_struct(DRBD_NLA_CONNECTION_INFO, 17, connection_info,
__u32_field(1, 0, conn_connection_state)
__u32_field(2, 0, conn_role)
)
GENL_struct(DRBD_NLA_PEER_DEVICE_INFO, 18, peer_device_info,
__u32_field(1, 0, peer_repl_state)
__u32_field(2, 0, peer_disk_state)
__u32_field(3, 0, peer_resync_susp_user)
__u32_field(4, 0, peer_resync_susp_peer)
__u32_field(5, 0, peer_resync_susp_dependency)
)
GENL_struct(DRBD_NLA_RESOURCE_STATISTICS, 19, resource_statistics,
__u32_field(1, 0, res_stat_write_ordering)
)
GENL_struct(DRBD_NLA_DEVICE_STATISTICS, 20, device_statistics,
__u64_field(1, 0, dev_size) /* (sectors) */
__u64_field(2, 0, dev_read) /* (sectors) */
__u64_field(3, 0, dev_write) /* (sectors) */
__u64_field(4, 0, dev_al_writes) /* activity log writes (count) */
__u64_field(5, 0, dev_bm_writes) /* bitmap writes (count) */
__u32_field(6, 0, dev_upper_pending) /* application requests in progress */
__u32_field(7, 0, dev_lower_pending) /* backing device requests in progress */
__flg_field(8, 0, dev_upper_blocked)
__flg_field(9, 0, dev_lower_blocked)
__flg_field(10, 0, dev_al_suspended) /* activity log suspended */
__u64_field(11, 0, dev_exposed_data_uuid)
__u64_field(12, 0, dev_current_uuid)
__u32_field(13, 0, dev_disk_flags)
__bin_field(14, 0, history_uuids, HISTORY_UUIDS * sizeof(__u64))
)
GENL_struct(DRBD_NLA_CONNECTION_STATISTICS, 21, connection_statistics,
__flg_field(1, 0, conn_congested)
)
GENL_struct(DRBD_NLA_PEER_DEVICE_STATISTICS, 22, peer_device_statistics,
__u64_field(1, 0, peer_dev_received) /* sectors */
__u64_field(2, 0, peer_dev_sent) /* sectors */
__u32_field(3, 0, peer_dev_pending) /* number of requests */
__u32_field(4, 0, peer_dev_unacked) /* number of requests */
__u64_field(5, 0, peer_dev_out_of_sync) /* sectors */
__u64_field(6, 0, peer_dev_resync_failed) /* sectors */
__u64_field(7, 0, peer_dev_bitmap_uuid)
__u32_field(9, 0, peer_dev_flags)
)
GENL_struct(DRBD_NLA_NOTIFICATION_HEADER, 23, drbd_notification_header,
__u32_field(1, 0, nh_type)
)
GENL_struct(DRBD_NLA_HELPER, 24, drbd_helper_info,
__str_field(1, 0, helper_name, 32)
__u32_field(2, 0, helper_status)
)
/*
* Notifications and commands (genlmsghdr->cmd)
*/
GENL_mc_group(events)
/* kernel -> userspace announcement of changes */
GENL_notification(
DRBD_EVENT, 1, events,
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_STATE_INFO, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NET_CONF, 0)
GENL_tla_expected(DRBD_NLA_DISK_CONF, 0)
GENL_tla_expected(DRBD_NLA_SYNCER_CONF, 0)
)
/* query kernel for specific or all info */
GENL_op(
DRBD_ADM_GET_STATUS, 2,
GENL_op_init(
.doit = drbd_adm_get_status,
.dumpit = drbd_adm_get_status_all,
/* anyone may ask for the status,
* it is broadcasted anyways */
),
/* To select the object .doit.
* Or a subset of objects in .dumpit. */
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, 0)
)
/* add DRBD minor devices as volumes to resources */
GENL_op(DRBD_ADM_NEW_MINOR, 5, GENL_doit(drbd_adm_new_minor),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_MINOR, 6, GENL_doit(drbd_adm_del_minor),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
/* add or delete resources */
GENL_op(DRBD_ADM_NEW_RESOURCE, 7, GENL_doit(drbd_adm_new_resource),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_RESOURCE, 8, GENL_doit(drbd_adm_del_resource),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_RESOURCE_OPTS, 9,
GENL_doit(drbd_adm_resource_opts),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_RESOURCE_OPTS, 0)
)
GENL_op(
DRBD_ADM_CONNECT, 10,
GENL_doit(drbd_adm_connect),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NET_CONF, DRBD_F_REQUIRED)
)
GENL_op(
DRBD_ADM_CHG_NET_OPTS, 29,
GENL_doit(drbd_adm_net_opts),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NET_CONF, DRBD_F_REQUIRED)
)
GENL_op(DRBD_ADM_DISCONNECT, 11, GENL_doit(drbd_adm_disconnect),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_ATTACH, 12,
GENL_doit(drbd_adm_attach),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_DISK_CONF, DRBD_F_REQUIRED)
)
GENL_op(DRBD_ADM_CHG_DISK_OPTS, 28,
GENL_doit(drbd_adm_disk_opts),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_DISK_OPTS, DRBD_F_REQUIRED)
)
GENL_op(
DRBD_ADM_RESIZE, 13,
GENL_doit(drbd_adm_resize),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, 0)
)
GENL_op(
DRBD_ADM_PRIMARY, 14,
GENL_doit(drbd_adm_set_role),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, DRBD_F_REQUIRED)
)
GENL_op(
DRBD_ADM_SECONDARY, 15,
GENL_doit(drbd_adm_set_role),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, DRBD_F_REQUIRED)
)
GENL_op(
DRBD_ADM_NEW_C_UUID, 16,
GENL_doit(drbd_adm_new_c_uuid),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NEW_C_UUID_PARMS, 0)
)
GENL_op(
DRBD_ADM_START_OV, 17,
GENL_doit(drbd_adm_start_ov),
GENL_tla_expected(DRBD_NLA_START_OV_PARMS, 0)
)
GENL_op(DRBD_ADM_DETACH, 18, GENL_doit(drbd_adm_detach),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_DETACH_PARMS, 0))
GENL_op(DRBD_ADM_INVALIDATE, 19, GENL_doit(drbd_adm_invalidate),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_INVAL_PEER, 20, GENL_doit(drbd_adm_invalidate_peer),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_PAUSE_SYNC, 21, GENL_doit(drbd_adm_pause_sync),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_RESUME_SYNC, 22, GENL_doit(drbd_adm_resume_sync),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_SUSPEND_IO, 23, GENL_doit(drbd_adm_suspend_io),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_RESUME_IO, 24, GENL_doit(drbd_adm_resume_io),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_OUTDATE, 25, GENL_doit(drbd_adm_outdate),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_GET_TIMEOUT_TYPE, 26, GENL_doit(drbd_adm_get_timeout_type),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_DOWN, 27, GENL_doit(drbd_adm_down),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_GET_RESOURCES, 30,
GENL_op_init(
.dumpit = drbd_adm_dump_resources,
),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, 0)
GENL_tla_expected(DRBD_NLA_RESOURCE_INFO, 0)
GENL_tla_expected(DRBD_NLA_RESOURCE_STATISTICS, 0))
GENL_op(DRBD_ADM_GET_DEVICES, 31,
GENL_op_init(
.dumpit = drbd_adm_dump_devices,
.done = drbd_adm_dump_devices_done,
),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, 0)
GENL_tla_expected(DRBD_NLA_DEVICE_INFO, 0)
GENL_tla_expected(DRBD_NLA_DEVICE_STATISTICS, 0))
GENL_op(DRBD_ADM_GET_CONNECTIONS, 32,
GENL_op_init(
.dumpit = drbd_adm_dump_connections,
.done = drbd_adm_dump_connections_done,
),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, 0)
GENL_tla_expected(DRBD_NLA_CONNECTION_INFO, 0)
GENL_tla_expected(DRBD_NLA_CONNECTION_STATISTICS, 0))
GENL_op(DRBD_ADM_GET_PEER_DEVICES, 33,
GENL_op_init(
.dumpit = drbd_adm_dump_peer_devices,
.done = drbd_adm_dump_peer_devices_done,
),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, 0)
GENL_tla_expected(DRBD_NLA_PEER_DEVICE_INFO, 0)
GENL_tla_expected(DRBD_NLA_PEER_DEVICE_STATISTICS, 0))
GENL_notification(
DRBD_RESOURCE_STATE, 34, events,
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NOTIFICATION_HEADER, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_RESOURCE_INFO, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_RESOURCE_STATISTICS, DRBD_F_REQUIRED))
GENL_notification(
DRBD_DEVICE_STATE, 35, events,
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NOTIFICATION_HEADER, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_DEVICE_INFO, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_DEVICE_STATISTICS, DRBD_F_REQUIRED))
GENL_notification(
DRBD_CONNECTION_STATE, 36, events,
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NOTIFICATION_HEADER, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_CONNECTION_INFO, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_CONNECTION_STATISTICS, DRBD_F_REQUIRED))
GENL_notification(
DRBD_PEER_DEVICE_STATE, 37, events,
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_NOTIFICATION_HEADER, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_PEER_DEVICE_INFO, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_PEER_DEVICE_STATISTICS, DRBD_F_REQUIRED))
GENL_op(
DRBD_ADM_GET_INITIAL_STATE, 38,
GENL_op_init(
.dumpit = drbd_adm_get_initial_state,
),
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, 0))
GENL_notification(
DRBD_HELPER, 40, events,
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
GENL_tla_expected(DRBD_NLA_HELPER, DRBD_F_REQUIRED))
GENL_notification(
DRBD_INITIAL_STATE_DONE, 41, events,
GENL_tla_expected(DRBD_NLA_NOTIFICATION_HEADER, DRBD_F_REQUIRED))
include/linux/drbd_genl_api.h
-16
View File
@@ -1,16 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef DRBD_GENL_STRUCT_H
#define DRBD_GENL_STRUCT_H
/* hack around predefined gcc/cpp "linux=1",
* we cannot possibly include <1/drbd_genl.h> */
#undef linux
#include <linux/drbd.h>
#define GENL_MAGIC_VERSION 1
#define GENL_MAGIC_FAMILY drbd
#define GENL_MAGIC_FAMILY_HDRSZ sizeof(struct drbd_genlmsghdr)
#define GENL_MAGIC_INCLUDE_FILE <linux/drbd_genl.h>
#include <linux/genl_magic_struct.h>
#endif
include/linux/genl_magic_func.h
-413
View File
@@ -1,413 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef GENL_MAGIC_FUNC_H
#define GENL_MAGIC_FUNC_H
#include <linux/args.h>
#include <linux/build_bug.h>
#include <linux/genl_magic_struct.h>
/*
* Magic: declare tla policy {{{1
* Magic: declare nested policies
* {{{2
*/
#undef GENL_mc_group
#define GENL_mc_group(group)
#undef GENL_notification
#define GENL_notification(op_name, op_num, mcast_group, tla_list)
#undef GENL_op
#define GENL_op(op_name, op_num, handler, tla_list)
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
[tag_name] = { .type = NLA_NESTED },
static struct nla_policy CONCATENATE(GENL_MAGIC_FAMILY, _tla_nl_policy)[] = {
#include GENL_MAGIC_INCLUDE_FILE
};
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
static struct nla_policy s_name ## _nl_policy[] __read_mostly = \
{ s_fields };
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, _type, __get, \
__put, __is_signed) \
[attr_nr] = { .type = nla_type },
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, _type, maxlen, \
__get, __put, __is_signed) \
[attr_nr] = { .type = nla_type, \
.len = maxlen - (nla_type == NLA_NUL_STRING) },
#include GENL_MAGIC_INCLUDE_FILE
#ifndef __KERNEL__
#ifndef pr_info
#define pr_info(args...) fprintf(stderr, args);
#endif
#endif
#ifdef GENL_MAGIC_DEBUG
static void dprint_field(const char *dir, int nla_type,
const char *name, void *valp)
{
__u64 val = valp ? *(__u32 *)valp : 1;
switch (nla_type) {
case NLA_U8: val = (__u8)val;
case NLA_U16: val = (__u16)val;
case NLA_U32: val = (__u32)val;
pr_info("%s attr %s: %d 0x%08x\n", dir,
name, (int)val, (unsigned)val);
break;
case NLA_U64:
val = *(__u64*)valp;
pr_info("%s attr %s: %lld 0x%08llx\n", dir,
name, (long long)val, (unsigned long long)val);
break;
case NLA_FLAG:
if (val)
pr_info("%s attr %s: set\n", dir, name);
break;
}
}
static void dprint_array(const char *dir, int nla_type,
const char *name, const char *val, unsigned len)
{
switch (nla_type) {
case NLA_NUL_STRING:
if (len && val[len-1] == '\0')
len--;
pr_info("%s attr %s: [len:%u] '%s'\n", dir, name, len, val);
break;
default:
/* we can always show 4 byte,
* thats what nlattr are aligned to. */
pr_info("%s attr %s: [len:%u] %02x%02x%02x%02x ...\n",
dir, name, len, val[0], val[1], val[2], val[3]);
}
}
#define DPRINT_TLA(a, op, b) pr_info("%s %s %s\n", a, op, b);
/* Name is a member field name of the struct s.
* If s is NULL (only parsing, no copy requested in *_from_attrs()),
* nla is supposed to point to the attribute containing the information
* corresponding to that struct member. */
#define DPRINT_FIELD(dir, nla_type, name, s, nla) \
do { \
if (s) \
dprint_field(dir, nla_type, #name, &s->name); \
else if (nla) \
dprint_field(dir, nla_type, #name, \
(nla_type == NLA_FLAG) ? NULL \
: nla_data(nla)); \
} while (0)
#define DPRINT_ARRAY(dir, nla_type, name, s, nla) \
do { \
if (s) \
dprint_array(dir, nla_type, #name, \
s->name, s->name ## _len); \
else if (nla) \
dprint_array(dir, nla_type, #name, \
nla_data(nla), nla_len(nla)); \
} while (0)
#else
#define DPRINT_TLA(a, op, b) do {} while (0)
#define DPRINT_FIELD(dir, nla_type, name, s, nla) do {} while (0)
#define DPRINT_ARRAY(dir, nla_type, name, s, nla) do {} while (0)
#endif
/*
* Magic: provide conversion functions {{{1
* populate struct from attribute table:
* {{{2
*/
/* processing of generic netlink messages is serialized.
* use one static buffer for parsing of nested attributes */
static struct nlattr *nested_attr_tb[128];
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
/* *_from_attrs functions are static, but potentially unused */ \
static int __ ## s_name ## _from_attrs(struct s_name *s, \
struct genl_info *info, bool exclude_invariants) \
{ \
const int maxtype = ARRAY_SIZE(s_name ## _nl_policy)-1; \
struct nlattr *tla = info->attrs[tag_number]; \
struct nlattr **ntb = nested_attr_tb; \
struct nlattr *nla; \
int err; \
BUILD_BUG_ON(ARRAY_SIZE(s_name ## _nl_policy) > ARRAY_SIZE(nested_attr_tb)); \
if (!tla) \
return -ENOMSG; \
DPRINT_TLA(#s_name, "<=-", #tag_name); \
err = nla_parse_nested_deprecated(ntb, maxtype, tla, \
s_name ## _nl_policy, NULL); \
if (err) \
return err; \
\
s_fields \
return 0; \
} __attribute__((unused)) \
static int s_name ## _from_attrs(struct s_name *s, \
struct genl_info *info) \
{ \
return __ ## s_name ## _from_attrs(s, info, false); \
} __attribute__((unused)) \
static int s_name ## _from_attrs_for_change(struct s_name *s, \
struct genl_info *info) \
{ \
return __ ## s_name ## _from_attrs(s, info, true); \
} __attribute__((unused)) \
#define __assign(attr_nr, attr_flag, name, nla_type, type, assignment...) \
nla = ntb[attr_nr]; \
if (nla) { \
if (exclude_invariants && !!((attr_flag) & DRBD_F_INVARIANT)) { \
pr_info("<< must not change invariant attr: %s\n", #name); \
return -EEXIST; \
} \
assignment; \
} else if (exclude_invariants && !!((attr_flag) & DRBD_F_INVARIANT)) { \
/* attribute missing from payload, */ \
/* which was expected */ \
} else if ((attr_flag) & DRBD_F_REQUIRED) { \
pr_info("<< missing attr: %s\n", #name); \
return -ENOMSG; \
}
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put, \
__is_signed) \
__assign(attr_nr, attr_flag, name, nla_type, type, \
if (s) \
s->name = __get(nla); \
DPRINT_FIELD("<<", nla_type, name, s, nla))
/* validate_nla() already checked nla_len <= maxlen appropriately. */
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, \
__get, __put, __is_signed) \
__assign(attr_nr, attr_flag, name, nla_type, type, \
if (s) \
s->name ## _len = \
__get(s->name, nla, maxlen); \
DPRINT_ARRAY("<<", nla_type, name, s, nla))
#include GENL_MAGIC_INCLUDE_FILE
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields)
/*
* Magic: define op number to op name mapping {{{1
* {{{2
*/
static const char *CONCATENATE(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
{
switch (cmd) {
#undef GENL_op
#define GENL_op(op_name, op_num, handler, tla_list) \
case op_num: return #op_name;
#include GENL_MAGIC_INCLUDE_FILE
default:
return "unknown";
}
}
#ifdef __KERNEL__
#include <linux/stringify.h>
/*
* Magic: define genl_ops {{{1
* {{{2
*/
#undef GENL_op
#define GENL_op(op_name, op_num, handler, tla_list) \
{ \
handler \
.cmd = op_name, \
},
#define ZZZ_genl_ops CONCATENATE(GENL_MAGIC_FAMILY, _genl_ops)
static struct genl_ops ZZZ_genl_ops[] __read_mostly = {
#include GENL_MAGIC_INCLUDE_FILE
};
#undef GENL_op
#define GENL_op(op_name, op_num, handler, tla_list)
/*
* Define the genl_family, multicast groups, {{{1
* and provide register/unregister functions.
* {{{2
*/
#define ZZZ_genl_family CONCATENATE(GENL_MAGIC_FAMILY, _genl_family)
static struct genl_family ZZZ_genl_family;
/*
* Magic: define multicast groups
* Magic: define multicast group registration helper
*/
#define ZZZ_genl_mcgrps CONCATENATE(GENL_MAGIC_FAMILY, _genl_mcgrps)
static const struct genl_multicast_group ZZZ_genl_mcgrps[] = {
#undef GENL_mc_group
#define GENL_mc_group(group) { .name = #group, },
#include GENL_MAGIC_INCLUDE_FILE
};
enum CONCATENATE(GENL_MAGIC_FAMILY, group_ids) {
#undef GENL_mc_group
#define GENL_mc_group(group) CONCATENATE(GENL_MAGIC_FAMILY, _group_ ## group),
#include GENL_MAGIC_INCLUDE_FILE
};
#undef GENL_mc_group
#define GENL_mc_group(group) \
static int CONCATENATE(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)( \
struct sk_buff *skb, gfp_t flags) \
{ \
unsigned int group_id = \
CONCATENATE(GENL_MAGIC_FAMILY, _group_ ## group); \
return genlmsg_multicast(&ZZZ_genl_family, skb, 0, \
group_id, flags); \
}
#include GENL_MAGIC_INCLUDE_FILE
#undef GENL_mc_group
#define GENL_mc_group(group)
static struct genl_family ZZZ_genl_family __ro_after_init = {
.name = __stringify(GENL_MAGIC_FAMILY),
.version = GENL_MAGIC_VERSION,
#ifdef GENL_MAGIC_FAMILY_HDRSZ
.hdrsize = NLA_ALIGN(GENL_MAGIC_FAMILY_HDRSZ),
#endif
.maxattr = ARRAY_SIZE(CONCATENATE(GENL_MAGIC_FAMILY, _tla_nl_policy))-1,
.policy = CONCATENATE(GENL_MAGIC_FAMILY, _tla_nl_policy),
#ifdef GENL_MAGIC_FAMILY_PRE_DOIT
.pre_doit = GENL_MAGIC_FAMILY_PRE_DOIT,
.post_doit = GENL_MAGIC_FAMILY_POST_DOIT,
#endif
.ops = ZZZ_genl_ops,
.n_ops = ARRAY_SIZE(ZZZ_genl_ops),
.mcgrps = ZZZ_genl_mcgrps,
.resv_start_op = 42, /* drbd is currently the only user */
.n_mcgrps = ARRAY_SIZE(ZZZ_genl_mcgrps),
.module = THIS_MODULE,
};
int CONCATENATE(GENL_MAGIC_FAMILY, _genl_register)(void)
{
return genl_register_family(&ZZZ_genl_family);
}
void CONCATENATE(GENL_MAGIC_FAMILY, _genl_unregister)(void)
{
genl_unregister_family(&ZZZ_genl_family);
}
/*
* Magic: provide conversion functions {{{1
* populate skb from struct.
* {{{2
*/
#undef GENL_op
#define GENL_op(op_name, op_num, handler, tla_list)
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
static int s_name ## _to_skb(struct sk_buff *skb, struct s_name *s, \
const bool exclude_sensitive) \
{ \
struct nlattr *tla = nla_nest_start(skb, tag_number); \
if (!tla) \
goto nla_put_failure; \
DPRINT_TLA(#s_name, "-=>", #tag_name); \
s_fields \
nla_nest_end(skb, tla); \
return 0; \
\
nla_put_failure: \
if (tla) \
nla_nest_cancel(skb, tla); \
return -EMSGSIZE; \
} \
static inline int s_name ## _to_priv_skb(struct sk_buff *skb, \
struct s_name *s) \
{ \
return s_name ## _to_skb(skb, s, 0); \
} \
static inline int s_name ## _to_unpriv_skb(struct sk_buff *skb, \
struct s_name *s) \
{ \
return s_name ## _to_skb(skb, s, 1); \
}
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put, \
__is_signed) \
if (!exclude_sensitive || !((attr_flag) & DRBD_F_SENSITIVE)) { \
DPRINT_FIELD(">>", nla_type, name, s, NULL); \
if (__put(skb, attr_nr, s->name)) \
goto nla_put_failure; \
}
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, \
__get, __put, __is_signed) \
if (!exclude_sensitive || !((attr_flag) & DRBD_F_SENSITIVE)) { \
DPRINT_ARRAY(">>",nla_type, name, s, NULL); \
if (__put(skb, attr_nr, min_t(int, maxlen, \
s->name ## _len + (nla_type == NLA_NUL_STRING)),\
s->name)) \
goto nla_put_failure; \
}
#include GENL_MAGIC_INCLUDE_FILE
/* Functions for initializing structs to default values. */
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put, \
__is_signed)
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, \
__get, __put, __is_signed)
#undef __u32_field_def
#define __u32_field_def(attr_nr, attr_flag, name, default) \
x->name = default;
#undef __s32_field_def
#define __s32_field_def(attr_nr, attr_flag, name, default) \
x->name = default;
#undef __flg_field_def
#define __flg_field_def(attr_nr, attr_flag, name, default) \
x->name = default;
#undef __str_field_def
#define __str_field_def(attr_nr, attr_flag, name, maxlen) \
memset(x->name, 0, sizeof(x->name)); \
x->name ## _len = 0;
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
static void set_ ## s_name ## _defaults(struct s_name *x) __attribute__((unused)); \
static void set_ ## s_name ## _defaults(struct s_name *x) { \
s_fields \
}
#include GENL_MAGIC_INCLUDE_FILE
#endif /* __KERNEL__ */
/* }}}1 */
#endif /* GENL_MAGIC_FUNC_H */
include/linux/genl_magic_struct.h
-272
View File
@@ -1,272 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef GENL_MAGIC_STRUCT_H
#define GENL_MAGIC_STRUCT_H
#ifndef GENL_MAGIC_FAMILY
# error "you need to define GENL_MAGIC_FAMILY before inclusion"
#endif
#ifndef GENL_MAGIC_VERSION
# error "you need to define GENL_MAGIC_VERSION before inclusion"
#endif
#ifndef GENL_MAGIC_INCLUDE_FILE
# error "you need to define GENL_MAGIC_INCLUDE_FILE before inclusion"
#endif
#include <linux/args.h>
#include <linux/types.h>
#include <net/genetlink.h>
extern int CONCATENATE(GENL_MAGIC_FAMILY, _genl_register)(void);
extern void CONCATENATE(GENL_MAGIC_FAMILY, _genl_unregister)(void);
/*
* Extension of genl attribute validation policies {{{2
*/
/*
* Flags specific to drbd and not visible at the netlink layer, used in
* <struct>_from_attrs and <struct>_to_skb:
*
* @DRBD_F_REQUIRED: Attribute is required; a request without this attribute is
* invalid.
*
* @DRBD_F_SENSITIVE: Attribute includes sensitive information and must not be
* included in unpriviledged get requests or broadcasts.
*
* @DRBD_F_INVARIANT: Attribute is set when an object is initially created, but
* cannot subsequently be changed.
*/
#define DRBD_F_REQUIRED (1 << 0)
#define DRBD_F_SENSITIVE (1 << 1)
#define DRBD_F_INVARIANT (1 << 2)
/* }}}1
* MAGIC
* multi-include macro expansion magic starts here
*/
/* MAGIC helpers {{{2 */
static inline int nla_put_u64_0pad(struct sk_buff *skb, int attrtype, u64 value)
{
return nla_put_64bit(skb, attrtype, sizeof(u64), &value, 0);
}
/* possible field types */
#define __flg_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U8, char, \
nla_get_u8, nla_put_u8, false)
#define __u8_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U8, unsigned char, \
nla_get_u8, nla_put_u8, false)
#define __u16_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U16, __u16, \
nla_get_u16, nla_put_u16, false)
#define __u32_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U32, __u32, \
nla_get_u32, nla_put_u32, false)
#define __s32_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U32, __s32, \
nla_get_u32, nla_put_u32, true)
#define __u64_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U64, __u64, \
nla_get_u64, nla_put_u64_0pad, false)
#define __str_field(attr_nr, attr_flag, name, maxlen) \
__array(attr_nr, attr_flag, name, NLA_NUL_STRING, char, maxlen, \
nla_strscpy, nla_put, false)
#define __bin_field(attr_nr, attr_flag, name, maxlen) \
__array(attr_nr, attr_flag, name, NLA_BINARY, char, maxlen, \
nla_memcpy, nla_put, false)
/* fields with default values */
#define __flg_field_def(attr_nr, attr_flag, name, default) \
__flg_field(attr_nr, attr_flag, name)
#define __u32_field_def(attr_nr, attr_flag, name, default) \
__u32_field(attr_nr, attr_flag, name)
#define __s32_field_def(attr_nr, attr_flag, name, default) \
__s32_field(attr_nr, attr_flag, name)
#define __str_field_def(attr_nr, attr_flag, name, maxlen) \
__str_field(attr_nr, attr_flag, name, maxlen)
#define GENL_op_init(args...) args
#define GENL_doit(handler) \
.doit = handler, \
.flags = GENL_ADMIN_PERM,
#define GENL_dumpit(handler) \
.dumpit = handler, \
.flags = GENL_ADMIN_PERM,
/* }}}1
* Magic: define the enum symbols for genl_ops
* Magic: define the enum symbols for top level attributes
* Magic: define the enum symbols for nested attributes
* {{{2
*/
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields)
#undef GENL_mc_group
#define GENL_mc_group(group)
#undef GENL_notification
#define GENL_notification(op_name, op_num, mcast_group, tla_list) \
op_name = op_num,
#undef GENL_op
#define GENL_op(op_name, op_num, handler, tla_list) \
op_name = op_num,
enum {
#include GENL_MAGIC_INCLUDE_FILE
};
#undef GENL_notification
#define GENL_notification(op_name, op_num, mcast_group, tla_list)
#undef GENL_op
#define GENL_op(op_name, op_num, handler, attr_list)
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
tag_name = tag_number,
enum {
#include GENL_MAGIC_INCLUDE_FILE
};
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
enum { \
s_fields \
};
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, \
__get, __put, __is_signed) \
T_ ## name = (__u16)(attr_nr),
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, \
maxlen, __get, __put, __is_signed) \
T_ ## name = (__u16)(attr_nr),
#include GENL_MAGIC_INCLUDE_FILE
/* }}}1
* Magic: compile time assert unique numbers for operations
* Magic: -"- unique numbers for top level attributes
* Magic: -"- unique numbers for nested attributes
* {{{2
*/
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields)
#undef GENL_op
#define GENL_op(op_name, op_num, handler, attr_list) \
case op_name:
#undef GENL_notification
#define GENL_notification(op_name, op_num, mcast_group, tla_list) \
case op_name:
static inline void ct_assert_unique_operations(void)
{
switch (0) {
#include GENL_MAGIC_INCLUDE_FILE
case 0:
;
}
}
#undef GENL_op
#define GENL_op(op_name, op_num, handler, attr_list)
#undef GENL_notification
#define GENL_notification(op_name, op_num, mcast_group, tla_list)
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
case tag_number:
static inline void ct_assert_unique_top_level_attributes(void)
{
switch (0) {
#include GENL_MAGIC_INCLUDE_FILE
case 0:
;
}
}
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
static inline void ct_assert_unique_ ## s_name ## _attributes(void) \
{ \
switch (0) { \
s_fields \
case 0: \
; \
} \
}
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put, \
__is_signed) \
case attr_nr:
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, \
__get, __put, __is_signed) \
case attr_nr:
#include GENL_MAGIC_INCLUDE_FILE
/* }}}1
* Magic: declare structs
* struct <name> {
* fields
* };
* {{{2
*/
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
struct s_name { s_fields };
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put, \
__is_signed) \
type name;
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, \
__get, __put, __is_signed) \
type name[maxlen]; \
__u32 name ## _len;
#include GENL_MAGIC_INCLUDE_FILE
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
enum { \
s_fields \
};
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put, \
is_signed) \
F_ ## name ## _IS_SIGNED = is_signed,
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, \
__get, __put, is_signed) \
F_ ## name ## _IS_SIGNED = is_signed,
#include GENL_MAGIC_INCLUDE_FILE
/* }}}1 */
#endif /* GENL_MAGIC_STRUCT_H */
include/uapi/linux/drbd.h
+3
View File
@@ -333,6 +333,9 @@ enum drbd_uuid_index {
#define HISTORY_UUIDS MAX_PEERS
#define DRBD_NL_UUIDS_SIZE (UI_SIZE * sizeof(__u64))
#define DRBD_NL_HISTORY_UUIDS_SIZE (HISTORY_UUIDS * sizeof(__u64))
enum drbd_timeout_flag {
UT_DEFAULT = 0,
UT_DEGRADED = 1,
include/uapi/linux/drbd_genl.h
+359
View File
@@ -0,0 +1,359 @@
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
#ifndef _UAPI_LINUX_DRBD_GENL_H
#define _UAPI_LINUX_DRBD_GENL_H
#define DRBD_FAMILY_NAME "drbd"
#define DRBD_FAMILY_VERSION 1
enum {
DRBD_NLA_CFG_REPLY = 1,
DRBD_NLA_CFG_CONTEXT,
DRBD_NLA_DISK_CONF,
DRBD_NLA_RESOURCE_OPTS,
DRBD_NLA_NET_CONF,
DRBD_NLA_SET_ROLE_PARMS,
DRBD_NLA_RESIZE_PARMS,
DRBD_NLA_STATE_INFO,
DRBD_NLA_START_OV_PARMS,
DRBD_NLA_NEW_C_UUID_PARMS,
DRBD_NLA_TIMEOUT_PARMS,
DRBD_NLA_DISCONNECT_PARMS,
DRBD_NLA_DETACH_PARMS,
DRBD_NLA_RESOURCE_INFO = 15,
DRBD_NLA_DEVICE_INFO,
DRBD_NLA_CONNECTION_INFO,
DRBD_NLA_PEER_DEVICE_INFO,
DRBD_NLA_RESOURCE_STATISTICS,
DRBD_NLA_DEVICE_STATISTICS,
DRBD_NLA_CONNECTION_STATISTICS,
DRBD_NLA_PEER_DEVICE_STATISTICS,
DRBD_NLA_NOTIFICATION_HEADER,
DRBD_NLA_HELPER,
__DRBD_NLA_MAX,
DRBD_NLA_MAX = (__DRBD_NLA_MAX - 1)
};
enum {
DRBD_A_DRBD_CFG_REPLY_INFO_TEXT = 1,
__DRBD_A_DRBD_CFG_REPLY_MAX,
DRBD_A_DRBD_CFG_REPLY_MAX = (__DRBD_A_DRBD_CFG_REPLY_MAX - 1)
};
enum {
DRBD_A_DRBD_CFG_CONTEXT_CTX_VOLUME = 1,
DRBD_A_DRBD_CFG_CONTEXT_CTX_RESOURCE_NAME,
DRBD_A_DRBD_CFG_CONTEXT_CTX_MY_ADDR,
DRBD_A_DRBD_CFG_CONTEXT_CTX_PEER_ADDR,
__DRBD_A_DRBD_CFG_CONTEXT_MAX,
DRBD_A_DRBD_CFG_CONTEXT_MAX = (__DRBD_A_DRBD_CFG_CONTEXT_MAX - 1)
};
enum {
DRBD_A_DISK_CONF_BACKING_DEV = 1,
DRBD_A_DISK_CONF_META_DEV,
DRBD_A_DISK_CONF_META_DEV_IDX,
DRBD_A_DISK_CONF_DISK_SIZE,
DRBD_A_DISK_CONF_MAX_BIO_BVECS,
DRBD_A_DISK_CONF_ON_IO_ERROR,
DRBD_A_DISK_CONF_FENCING,
DRBD_A_DISK_CONF_RESYNC_RATE,
DRBD_A_DISK_CONF_RESYNC_AFTER,
DRBD_A_DISK_CONF_AL_EXTENTS,
DRBD_A_DISK_CONF_C_PLAN_AHEAD,
DRBD_A_DISK_CONF_C_DELAY_TARGET,
DRBD_A_DISK_CONF_C_FILL_TARGET,
DRBD_A_DISK_CONF_C_MAX_RATE,
DRBD_A_DISK_CONF_C_MIN_RATE,
DRBD_A_DISK_CONF_DISK_BARRIER,
DRBD_A_DISK_CONF_DISK_FLUSHES,
DRBD_A_DISK_CONF_DISK_DRAIN,
DRBD_A_DISK_CONF_MD_FLUSHES,
DRBD_A_DISK_CONF_DISK_TIMEOUT,
DRBD_A_DISK_CONF_READ_BALANCING,
DRBD_A_DISK_CONF_AL_UPDATES = 23,
DRBD_A_DISK_CONF_DISCARD_ZEROES_IF_ALIGNED,
DRBD_A_DISK_CONF_RS_DISCARD_GRANULARITY,
DRBD_A_DISK_CONF_DISABLE_WRITE_SAME,
__DRBD_A_DISK_CONF_MAX,
DRBD_A_DISK_CONF_MAX = (__DRBD_A_DISK_CONF_MAX - 1)
};
enum {
DRBD_A_RES_OPTS_CPU_MASK = 1,
DRBD_A_RES_OPTS_ON_NO_DATA,
__DRBD_A_RES_OPTS_MAX,
DRBD_A_RES_OPTS_MAX = (__DRBD_A_RES_OPTS_MAX - 1)
};
enum {
DRBD_A_NET_CONF_SHARED_SECRET = 1,
DRBD_A_NET_CONF_CRAM_HMAC_ALG,
DRBD_A_NET_CONF_INTEGRITY_ALG,
DRBD_A_NET_CONF_VERIFY_ALG,
DRBD_A_NET_CONF_CSUMS_ALG,
DRBD_A_NET_CONF_WIRE_PROTOCOL,
DRBD_A_NET_CONF_CONNECT_INT,
DRBD_A_NET_CONF_TIMEOUT,
DRBD_A_NET_CONF_PING_INT,
DRBD_A_NET_CONF_PING_TIMEO,
DRBD_A_NET_CONF_SNDBUF_SIZE,
DRBD_A_NET_CONF_RCVBUF_SIZE,
DRBD_A_NET_CONF_KO_COUNT,
DRBD_A_NET_CONF_MAX_BUFFERS,
DRBD_A_NET_CONF_MAX_EPOCH_SIZE,
DRBD_A_NET_CONF_UNPLUG_WATERMARK,
DRBD_A_NET_CONF_AFTER_SB_0P,
DRBD_A_NET_CONF_AFTER_SB_1P,
DRBD_A_NET_CONF_AFTER_SB_2P,
DRBD_A_NET_CONF_RR_CONFLICT,
DRBD_A_NET_CONF_ON_CONGESTION,
DRBD_A_NET_CONF_CONG_FILL,
DRBD_A_NET_CONF_CONG_EXTENTS,
DRBD_A_NET_CONF_TWO_PRIMARIES,
DRBD_A_NET_CONF_DISCARD_MY_DATA,
DRBD_A_NET_CONF_TCP_CORK,
DRBD_A_NET_CONF_ALWAYS_ASBP,
DRBD_A_NET_CONF_TENTATIVE,
DRBD_A_NET_CONF_USE_RLE,
DRBD_A_NET_CONF_CSUMS_AFTER_CRASH_ONLY = 33,
DRBD_A_NET_CONF_SOCK_CHECK_TIMEO,
__DRBD_A_NET_CONF_MAX,
DRBD_A_NET_CONF_MAX = (__DRBD_A_NET_CONF_MAX - 1)
};
enum {
DRBD_A_SET_ROLE_PARMS_ASSUME_UPTODATE = 1,
__DRBD_A_SET_ROLE_PARMS_MAX,
DRBD_A_SET_ROLE_PARMS_MAX = (__DRBD_A_SET_ROLE_PARMS_MAX - 1)
};
enum {
DRBD_A_RESIZE_PARMS_RESIZE_SIZE = 1,
DRBD_A_RESIZE_PARMS_RESIZE_FORCE,
DRBD_A_RESIZE_PARMS_NO_RESYNC,
DRBD_A_RESIZE_PARMS_AL_STRIPES,
DRBD_A_RESIZE_PARMS_AL_STRIPE_SIZE,
__DRBD_A_RESIZE_PARMS_MAX,
DRBD_A_RESIZE_PARMS_MAX = (__DRBD_A_RESIZE_PARMS_MAX - 1)
};
enum {
DRBD_A_STATE_INFO_SIB_REASON = 1,
DRBD_A_STATE_INFO_CURRENT_STATE,
DRBD_A_STATE_INFO_CAPACITY,
DRBD_A_STATE_INFO_ED_UUID,
DRBD_A_STATE_INFO_PREV_STATE,
DRBD_A_STATE_INFO_NEW_STATE,
DRBD_A_STATE_INFO_UUIDS,
DRBD_A_STATE_INFO_DISK_FLAGS,
DRBD_A_STATE_INFO_BITS_TOTAL,
DRBD_A_STATE_INFO_BITS_OOS,
DRBD_A_STATE_INFO_BITS_RS_TOTAL,
DRBD_A_STATE_INFO_BITS_RS_FAILED,
DRBD_A_STATE_INFO_HELPER,
DRBD_A_STATE_INFO_HELPER_EXIT_CODE,
DRBD_A_STATE_INFO_SEND_CNT,
DRBD_A_STATE_INFO_RECV_CNT,
DRBD_A_STATE_INFO_READ_CNT,
DRBD_A_STATE_INFO_WRIT_CNT,
DRBD_A_STATE_INFO_AL_WRIT_CNT,
DRBD_A_STATE_INFO_BM_WRIT_CNT,
DRBD_A_STATE_INFO_AP_BIO_CNT,
DRBD_A_STATE_INFO_AP_PENDING_CNT,
DRBD_A_STATE_INFO_RS_PENDING_CNT,
__DRBD_A_STATE_INFO_MAX,
DRBD_A_STATE_INFO_MAX = (__DRBD_A_STATE_INFO_MAX - 1)
};
enum {
DRBD_A_START_OV_PARMS_OV_START_SECTOR = 1,
DRBD_A_START_OV_PARMS_OV_STOP_SECTOR,
__DRBD_A_START_OV_PARMS_MAX,
DRBD_A_START_OV_PARMS_MAX = (__DRBD_A_START_OV_PARMS_MAX - 1)
};
enum {
DRBD_A_NEW_C_UUID_PARMS_CLEAR_BM = 1,
__DRBD_A_NEW_C_UUID_PARMS_MAX,
DRBD_A_NEW_C_UUID_PARMS_MAX = (__DRBD_A_NEW_C_UUID_PARMS_MAX - 1)
};
enum {
DRBD_A_TIMEOUT_PARMS_TIMEOUT_TYPE = 1,
__DRBD_A_TIMEOUT_PARMS_MAX,
DRBD_A_TIMEOUT_PARMS_MAX = (__DRBD_A_TIMEOUT_PARMS_MAX - 1)
};
enum {
DRBD_A_DISCONNECT_PARMS_FORCE_DISCONNECT = 1,
__DRBD_A_DISCONNECT_PARMS_MAX,
DRBD_A_DISCONNECT_PARMS_MAX = (__DRBD_A_DISCONNECT_PARMS_MAX - 1)
};
enum {
DRBD_A_DETACH_PARMS_FORCE_DETACH = 1,
__DRBD_A_DETACH_PARMS_MAX,
DRBD_A_DETACH_PARMS_MAX = (__DRBD_A_DETACH_PARMS_MAX - 1)
};
enum {
DRBD_A_RESOURCE_INFO_RES_ROLE = 1,
DRBD_A_RESOURCE_INFO_RES_SUSP,
DRBD_A_RESOURCE_INFO_RES_SUSP_NOD,
DRBD_A_RESOURCE_INFO_RES_SUSP_FEN,
__DRBD_A_RESOURCE_INFO_MAX,
DRBD_A_RESOURCE_INFO_MAX = (__DRBD_A_RESOURCE_INFO_MAX - 1)
};
enum {
DRBD_A_DEVICE_INFO_DEV_DISK_STATE = 1,
__DRBD_A_DEVICE_INFO_MAX,
DRBD_A_DEVICE_INFO_MAX = (__DRBD_A_DEVICE_INFO_MAX - 1)
};
enum {
DRBD_A_CONNECTION_INFO_CONN_CONNECTION_STATE = 1,
DRBD_A_CONNECTION_INFO_CONN_ROLE,
__DRBD_A_CONNECTION_INFO_MAX,
DRBD_A_CONNECTION_INFO_MAX = (__DRBD_A_CONNECTION_INFO_MAX - 1)
};
enum {
DRBD_A_PEER_DEVICE_INFO_PEER_REPL_STATE = 1,
DRBD_A_PEER_DEVICE_INFO_PEER_DISK_STATE,
DRBD_A_PEER_DEVICE_INFO_PEER_RESYNC_SUSP_USER,
DRBD_A_PEER_DEVICE_INFO_PEER_RESYNC_SUSP_PEER,
DRBD_A_PEER_DEVICE_INFO_PEER_RESYNC_SUSP_DEPENDENCY,
__DRBD_A_PEER_DEVICE_INFO_MAX,
DRBD_A_PEER_DEVICE_INFO_MAX = (__DRBD_A_PEER_DEVICE_INFO_MAX - 1)
};
enum {
DRBD_A_RESOURCE_STATISTICS_RES_STAT_WRITE_ORDERING = 1,
__DRBD_A_RESOURCE_STATISTICS_MAX,
DRBD_A_RESOURCE_STATISTICS_MAX = (__DRBD_A_RESOURCE_STATISTICS_MAX - 1)
};
enum {
DRBD_A_DEVICE_STATISTICS_DEV_SIZE = 1,
DRBD_A_DEVICE_STATISTICS_DEV_READ,
DRBD_A_DEVICE_STATISTICS_DEV_WRITE,
DRBD_A_DEVICE_STATISTICS_DEV_AL_WRITES,
DRBD_A_DEVICE_STATISTICS_DEV_BM_WRITES,
DRBD_A_DEVICE_STATISTICS_DEV_UPPER_PENDING,
DRBD_A_DEVICE_STATISTICS_DEV_LOWER_PENDING,
DRBD_A_DEVICE_STATISTICS_DEV_UPPER_BLOCKED,
DRBD_A_DEVICE_STATISTICS_DEV_LOWER_BLOCKED,
DRBD_A_DEVICE_STATISTICS_DEV_AL_SUSPENDED,
DRBD_A_DEVICE_STATISTICS_DEV_EXPOSED_DATA_UUID,
DRBD_A_DEVICE_STATISTICS_DEV_CURRENT_UUID,
DRBD_A_DEVICE_STATISTICS_DEV_DISK_FLAGS,
DRBD_A_DEVICE_STATISTICS_HISTORY_UUIDS,
__DRBD_A_DEVICE_STATISTICS_MAX,
DRBD_A_DEVICE_STATISTICS_MAX = (__DRBD_A_DEVICE_STATISTICS_MAX - 1)
};
enum {
DRBD_A_CONNECTION_STATISTICS_CONN_CONGESTED = 1,
__DRBD_A_CONNECTION_STATISTICS_MAX,
DRBD_A_CONNECTION_STATISTICS_MAX = (__DRBD_A_CONNECTION_STATISTICS_MAX - 1)
};
enum {
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_RECEIVED = 1,
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_SENT,
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_PENDING,
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_UNACKED,
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_OUT_OF_SYNC,
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_RESYNC_FAILED,
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_BITMAP_UUID,
DRBD_A_PEER_DEVICE_STATISTICS_PEER_DEV_FLAGS = 9,
__DRBD_A_PEER_DEVICE_STATISTICS_MAX,
DRBD_A_PEER_DEVICE_STATISTICS_MAX = (__DRBD_A_PEER_DEVICE_STATISTICS_MAX - 1)
};
enum {
DRBD_A_DRBD_NOTIFICATION_HEADER_NH_TYPE = 1,
__DRBD_A_DRBD_NOTIFICATION_HEADER_MAX,
DRBD_A_DRBD_NOTIFICATION_HEADER_MAX = (__DRBD_A_DRBD_NOTIFICATION_HEADER_MAX - 1)
};
enum {
DRBD_A_DRBD_HELPER_INFO_HELPER_NAME = 1,
DRBD_A_DRBD_HELPER_INFO_HELPER_STATUS,
__DRBD_A_DRBD_HELPER_INFO_MAX,
DRBD_A_DRBD_HELPER_INFO_MAX = (__DRBD_A_DRBD_HELPER_INFO_MAX - 1)
};
enum {
DRBD_ADM_EVENT = 1,
DRBD_ADM_GET_STATUS,
DRBD_ADM_NEW_MINOR = 5,
DRBD_ADM_DEL_MINOR,
DRBD_ADM_NEW_RESOURCE,
DRBD_ADM_DEL_RESOURCE,
DRBD_ADM_RESOURCE_OPTS,
DRBD_ADM_CONNECT,
DRBD_ADM_DISCONNECT,
DRBD_ADM_ATTACH,
DRBD_ADM_RESIZE,
DRBD_ADM_PRIMARY,
DRBD_ADM_SECONDARY,
DRBD_ADM_NEW_C_UUID,
DRBD_ADM_START_OV,
DRBD_ADM_DETACH,
DRBD_ADM_INVALIDATE,
DRBD_ADM_INVAL_PEER,
DRBD_ADM_PAUSE_SYNC,
DRBD_ADM_RESUME_SYNC,
DRBD_ADM_SUSPEND_IO,
DRBD_ADM_RESUME_IO,
DRBD_ADM_OUTDATE,
DRBD_ADM_GET_TIMEOUT_TYPE,
DRBD_ADM_DOWN,
DRBD_ADM_CHG_DISK_OPTS,
DRBD_ADM_CHG_NET_OPTS,
DRBD_ADM_GET_RESOURCES,
DRBD_ADM_GET_DEVICES,
DRBD_ADM_GET_CONNECTIONS,
DRBD_ADM_GET_PEER_DEVICES,
DRBD_ADM_RESOURCE_STATE,
DRBD_ADM_DEVICE_STATE,
DRBD_ADM_CONNECTION_STATE,
DRBD_ADM_PEER_DEVICE_STATE,
DRBD_ADM_GET_INITIAL_STATE,
DRBD_ADM_HELPER = 40,
DRBD_ADM_INITIAL_STATE_DONE,
__DRBD_ADM_MAX,
DRBD_ADM_MAX = (__DRBD_ADM_MAX - 1)
};
#define DRBD_MCGRP_EVENTS "events"
#endif /* _UAPI_LINUX_DRBD_GENL_H */