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-rw-r--r--include/linux/drbd_genl.h244
-rw-r--r--include/linux/genl_magic_func.h107
-rw-r--r--include/linux/genl_magic_struct.h64
3 files changed, 193 insertions, 222 deletions
diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h
index 7b174a0..4ceecb9 100644
--- a/include/linux/drbd_genl.h
+++ b/include/linux/drbd_genl.h
@@ -86,7 +86,7 @@
*/
GENL_struct(DRBD_NLA_CFG_REPLY, 1, drbd_cfg_reply,
/* "arbitrary" size strings, nla_policy.len = 0 */
- __str_field(1, GENLA_F_MANDATORY, info_text, 0)
+ __str_field(1, DRBD_GENLA_F_MANDATORY, info_text, 0)
)
/* Configuration requests typically need a context to operate on.
@@ -95,133 +95,133 @@ GENL_struct(DRBD_NLA_CFG_REPLY, 1, drbd_cfg_reply,
* 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, GENLA_F_MANDATORY, ctx_volume)
- __str_field(2, GENLA_F_MANDATORY, ctx_conn_name, 128)
+ __u32_field(1, DRBD_GENLA_F_MANDATORY, ctx_volume)
+ __str_field(2, DRBD_GENLA_F_MANDATORY, ctx_conn_name, 128)
)
GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
- __str_field(1, GENLA_F_REQUIRED | GENLA_F_INVARIANT, backing_dev, 128)
- __str_field(2, GENLA_F_REQUIRED | GENLA_F_INVARIANT, meta_dev, 128)
- __s32_field(3, GENLA_F_REQUIRED | GENLA_F_INVARIANT, meta_dev_idx)
+ __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, GENLA_F_MANDATORY | GENLA_F_INVARIANT, disk_size)
+ __u64_field(4, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, disk_size)
/* we could change the max_bio_bvecs,
* but it won't propagate through the stack */
- __u32_field(5, GENLA_F_MANDATORY | GENLA_F_INVARIANT, max_bio_bvecs)
-
- __u32_field_def(6, GENLA_F_MANDATORY, on_io_error, DRBD_ON_IO_ERROR_DEF)
- __u32_field_def(7, GENLA_F_MANDATORY, fencing, DRBD_FENCING_DEF)
-
- __u32_field_def(8, GENLA_F_MANDATORY, resync_rate, DRBD_RESYNC_RATE_DEF)
- __s32_field_def(9, GENLA_F_MANDATORY, resync_after, DRBD_RESYNC_AFTER_DEF)
- __u32_field_def(10, GENLA_F_MANDATORY, al_extents, DRBD_AL_EXTENTS_DEF)
- __u32_field_def(11, GENLA_F_MANDATORY, c_plan_ahead, DRBD_C_PLAN_AHEAD_DEF)
- __u32_field_def(12, GENLA_F_MANDATORY, c_delay_target, DRBD_C_DELAY_TARGET_DEF)
- __u32_field_def(13, GENLA_F_MANDATORY, c_fill_target, DRBD_C_FILL_TARGET_DEF)
- __u32_field_def(14, GENLA_F_MANDATORY, c_max_rate, DRBD_C_MAX_RATE_DEF)
- __u32_field_def(15, GENLA_F_MANDATORY, c_min_rate, DRBD_C_MIN_RATE_DEF)
-
- __flg_field_def(16, GENLA_F_MANDATORY, disk_barrier, DRBD_DISK_BARRIER_DEF)
- __flg_field_def(17, GENLA_F_MANDATORY, disk_flushes, DRBD_DISK_FLUSHES_DEF)
- __flg_field_def(18, GENLA_F_MANDATORY, disk_drain, DRBD_DISK_DRAIN_DEF)
- __flg_field_def(19, GENLA_F_MANDATORY, md_flushes, DRBD_MD_FLUSHES_DEF)
+ __u32_field(5, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, max_bio_bvecs)
+
+ __u32_field_def(6, DRBD_GENLA_F_MANDATORY, on_io_error, DRBD_ON_IO_ERROR_DEF)
+ __u32_field_def(7, DRBD_GENLA_F_MANDATORY, fencing, DRBD_FENCING_DEF)
+
+ __u32_field_def(8, DRBD_GENLA_F_MANDATORY, resync_rate, DRBD_RESYNC_RATE_DEF)
+ __s32_field_def(9, DRBD_GENLA_F_MANDATORY, resync_after, DRBD_MINOR_NUMBER_DEF)
+ __u32_field_def(10, DRBD_GENLA_F_MANDATORY, al_extents, DRBD_AL_EXTENTS_DEF)
+ __u32_field_def(11, DRBD_GENLA_F_MANDATORY, c_plan_ahead, DRBD_C_PLAN_AHEAD_DEF)
+ __u32_field_def(12, DRBD_GENLA_F_MANDATORY, c_delay_target, DRBD_C_DELAY_TARGET_DEF)
+ __u32_field_def(13, DRBD_GENLA_F_MANDATORY, c_fill_target, DRBD_C_FILL_TARGET_DEF)
+ __u32_field_def(14, DRBD_GENLA_F_MANDATORY, c_max_rate, DRBD_C_MAX_RATE_DEF)
+ __u32_field_def(15, DRBD_GENLA_F_MANDATORY, c_min_rate, DRBD_C_MIN_RATE_DEF)
+
+ __flg_field_def(16, DRBD_GENLA_F_MANDATORY, disk_barrier, DRBD_DISK_BARRIER_DEF)
+ __flg_field_def(17, DRBD_GENLA_F_MANDATORY, disk_flushes, DRBD_DISK_FLUSHES_DEF)
+ __flg_field_def(18, DRBD_GENLA_F_MANDATORY, disk_drain, DRBD_DISK_DRAIN_DEF)
+ __flg_field_def(19, DRBD_GENLA_F_MANDATORY, md_flushes, DRBD_MD_FLUSHES_DEF)
)
GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts,
- __str_field_def(1, GENLA_F_MANDATORY, cpu_mask, 32)
- __u32_field_def(2, GENLA_F_MANDATORY, on_no_data, DRBD_ON_NO_DATA_DEF)
+ __str_field_def(1, DRBD_GENLA_F_MANDATORY, cpu_mask, 32)
+ __u32_field_def(2, DRBD_GENLA_F_MANDATORY, on_no_data, DRBD_ON_NO_DATA_DEF)
)
GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
- __bin_field(1, GENLA_F_REQUIRED | GENLA_F_INVARIANT, my_addr, 128)
- __bin_field(2, GENLA_F_REQUIRED | GENLA_F_INVARIANT, peer_addr, 128)
- __str_field_def(3, GENLA_F_MANDATORY | GENLA_F_SENSITIVE,
+ __bin_field(1, DRBD_F_REQUIRED | DRBD_F_INVARIANT, my_addr, 128)
+ __bin_field(2, DRBD_F_REQUIRED | DRBD_F_INVARIANT, peer_addr, 128)
+ __str_field_def(3, DRBD_GENLA_F_MANDATORY | DRBD_F_SENSITIVE,
shared_secret, SHARED_SECRET_MAX)
- __str_field_def(4, GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX)
- __str_field_def(5, GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX)
- __str_field_def(6, GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX)
- __str_field_def(7, GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX)
- __u32_field_def(8, GENLA_F_MANDATORY, wire_protocol, DRBD_PROTOCOL_DEF)
- __u32_field_def(9, GENLA_F_MANDATORY, connect_int, DRBD_CONNECT_INT_DEF)
- __u32_field_def(10, GENLA_F_MANDATORY, timeout, DRBD_TIMEOUT_DEF)
- __u32_field_def(11, GENLA_F_MANDATORY, ping_int, DRBD_PING_INT_DEF)
- __u32_field_def(12, GENLA_F_MANDATORY, ping_timeo, DRBD_PING_TIMEO_DEF)
- __u32_field_def(13, GENLA_F_MANDATORY, sndbuf_size, DRBD_SNDBUF_SIZE_DEF)
- __u32_field_def(14, GENLA_F_MANDATORY, rcvbuf_size, DRBD_RCVBUF_SIZE_DEF)
- __u32_field_def(15, GENLA_F_MANDATORY, ko_count, DRBD_KO_COUNT_DEF)
- __u32_field_def(16, GENLA_F_MANDATORY, max_buffers, DRBD_MAX_BUFFERS_DEF)
- __u32_field_def(17, GENLA_F_MANDATORY, max_epoch_size, DRBD_MAX_EPOCH_SIZE_DEF)
- __u32_field_def(18, GENLA_F_MANDATORY, unplug_watermark, DRBD_UNPLUG_WATERMARK_DEF)
- __u32_field_def(19, GENLA_F_MANDATORY, after_sb_0p, DRBD_AFTER_SB_0P_DEF)
- __u32_field_def(20, GENLA_F_MANDATORY, after_sb_1p, DRBD_AFTER_SB_1P_DEF)
- __u32_field_def(21, GENLA_F_MANDATORY, after_sb_2p, DRBD_AFTER_SB_2P_DEF)
- __u32_field_def(22, GENLA_F_MANDATORY, rr_conflict, DRBD_RR_CONFLICT_DEF)
- __u32_field_def(23, GENLA_F_MANDATORY, on_congestion, DRBD_ON_CONGESTION_DEF)
- __u32_field_def(24, GENLA_F_MANDATORY, cong_fill, DRBD_CONG_FILL_DEF)
- __u32_field_def(25, GENLA_F_MANDATORY, cong_extents, DRBD_CONG_EXTENTS_DEF)
- __flg_field_def(26, GENLA_F_MANDATORY, two_primaries, DRBD_ALLOW_TWO_PRIMARIES_DEF)
- __flg_field(27, GENLA_F_MANDATORY | GENLA_F_INVARIANT, discard_my_data)
- __flg_field_def(28, GENLA_F_MANDATORY, tcp_cork, DRBD_TCP_CORK_DEF)
- __flg_field_def(29, GENLA_F_MANDATORY, always_asbp, DRBD_ALWAYS_ASBP_DEF)
- __flg_field(30, GENLA_F_MANDATORY | GENLA_F_INVARIANT, dry_run)
- __flg_field_def(31, GENLA_F_MANDATORY, use_rle, DRBD_USE_RLE_DEF)
+ __str_field_def(4, DRBD_GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX)
+ __str_field_def(5, DRBD_GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX)
+ __str_field_def(6, DRBD_GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX)
+ __str_field_def(7, DRBD_GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX)
+ __u32_field_def(8, DRBD_GENLA_F_MANDATORY, wire_protocol, DRBD_PROTOCOL_DEF)
+ __u32_field_def(9, DRBD_GENLA_F_MANDATORY, connect_int, DRBD_CONNECT_INT_DEF)
+ __u32_field_def(10, DRBD_GENLA_F_MANDATORY, timeout, DRBD_TIMEOUT_DEF)
+ __u32_field_def(11, DRBD_GENLA_F_MANDATORY, ping_int, DRBD_PING_INT_DEF)
+ __u32_field_def(12, DRBD_GENLA_F_MANDATORY, ping_timeo, DRBD_PING_TIMEO_DEF)
+ __u32_field_def(13, DRBD_GENLA_F_MANDATORY, sndbuf_size, DRBD_SNDBUF_SIZE_DEF)
+ __u32_field_def(14, DRBD_GENLA_F_MANDATORY, rcvbuf_size, DRBD_RCVBUF_SIZE_DEF)
+ __u32_field_def(15, DRBD_GENLA_F_MANDATORY, ko_count, DRBD_KO_COUNT_DEF)
+ __u32_field_def(16, DRBD_GENLA_F_MANDATORY, max_buffers, DRBD_MAX_BUFFERS_DEF)
+ __u32_field_def(17, DRBD_GENLA_F_MANDATORY, max_epoch_size, DRBD_MAX_EPOCH_SIZE_DEF)
+ __u32_field_def(18, DRBD_GENLA_F_MANDATORY, unplug_watermark, DRBD_UNPLUG_WATERMARK_DEF)
+ __u32_field_def(19, DRBD_GENLA_F_MANDATORY, after_sb_0p, DRBD_AFTER_SB_0P_DEF)
+ __u32_field_def(20, DRBD_GENLA_F_MANDATORY, after_sb_1p, DRBD_AFTER_SB_1P_DEF)
+ __u32_field_def(21, DRBD_GENLA_F_MANDATORY, after_sb_2p, DRBD_AFTER_SB_2P_DEF)
+ __u32_field_def(22, DRBD_GENLA_F_MANDATORY, rr_conflict, DRBD_RR_CONFLICT_DEF)
+ __u32_field_def(23, DRBD_GENLA_F_MANDATORY, on_congestion, DRBD_ON_CONGESTION_DEF)
+ __u32_field_def(24, DRBD_GENLA_F_MANDATORY, cong_fill, DRBD_CONG_FILL_DEF)
+ __u32_field_def(25, DRBD_GENLA_F_MANDATORY, cong_extents, DRBD_CONG_EXTENTS_DEF)
+ __flg_field_def(26, DRBD_GENLA_F_MANDATORY, two_primaries, DRBD_ALLOW_TWO_PRIMARIES_DEF)
+ __flg_field(27, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, discard_my_data)
+ __flg_field_def(28, DRBD_GENLA_F_MANDATORY, tcp_cork, DRBD_TCP_CORK_DEF)
+ __flg_field_def(29, DRBD_GENLA_F_MANDATORY, always_asbp, DRBD_ALWAYS_ASBP_DEF)
+ __flg_field(30, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, dry_run)
+ __flg_field_def(31, DRBD_GENLA_F_MANDATORY, use_rle, DRBD_USE_RLE_DEF)
)
GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms,
- __flg_field(1, GENLA_F_MANDATORY, assume_uptodate)
+ __flg_field(1, DRBD_GENLA_F_MANDATORY, assume_uptodate)
)
GENL_struct(DRBD_NLA_RESIZE_PARMS, 7, resize_parms,
- __u64_field(1, GENLA_F_MANDATORY, resize_size)
- __flg_field(2, GENLA_F_MANDATORY, resize_force)
- __flg_field(3, GENLA_F_MANDATORY, no_resync)
+ __u64_field(1, DRBD_GENLA_F_MANDATORY, resize_size)
+ __flg_field(2, DRBD_GENLA_F_MANDATORY, resize_force)
+ __flg_field(3, DRBD_GENLA_F_MANDATORY, no_resync)
)
GENL_struct(DRBD_NLA_STATE_INFO, 8, state_info,
/* the reason of the broadcast,
* if this is an event triggered broadcast. */
- __u32_field(1, GENLA_F_MANDATORY, sib_reason)
- __u32_field(2, GENLA_F_REQUIRED, current_state)
- __u64_field(3, GENLA_F_MANDATORY, capacity)
- __u64_field(4, GENLA_F_MANDATORY, ed_uuid)
+ __u32_field(1, DRBD_GENLA_F_MANDATORY, sib_reason)
+ __u32_field(2, DRBD_F_REQUIRED, current_state)
+ __u64_field(3, DRBD_GENLA_F_MANDATORY, capacity)
+ __u64_field(4, DRBD_GENLA_F_MANDATORY, 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, GENLA_F_MANDATORY, prev_state)
- __u32_field(6, GENLA_F_MANDATORY, new_state)
+ __u32_field(5, DRBD_GENLA_F_MANDATORY, prev_state)
+ __u32_field(6, DRBD_GENLA_F_MANDATORY, new_state)
/* if we have a local disk: */
- __bin_field(7, GENLA_F_MANDATORY, uuids, (UI_SIZE*sizeof(__u64)))
- __u32_field(8, GENLA_F_MANDATORY, disk_flags)
- __u64_field(9, GENLA_F_MANDATORY, bits_total)
- __u64_field(10, GENLA_F_MANDATORY, bits_oos)
+ __bin_field(7, DRBD_GENLA_F_MANDATORY, uuids, (UI_SIZE*sizeof(__u64)))
+ __u32_field(8, DRBD_GENLA_F_MANDATORY, disk_flags)
+ __u64_field(9, DRBD_GENLA_F_MANDATORY, bits_total)
+ __u64_field(10, DRBD_GENLA_F_MANDATORY, bits_oos)
/* and in case resync or online verify is active */
- __u64_field(11, GENLA_F_MANDATORY, bits_rs_total)
- __u64_field(12, GENLA_F_MANDATORY, bits_rs_failed)
+ __u64_field(11, DRBD_GENLA_F_MANDATORY, bits_rs_total)
+ __u64_field(12, DRBD_GENLA_F_MANDATORY, bits_rs_failed)
/* for pre and post notifications of helper execution */
- __str_field(13, GENLA_F_MANDATORY, helper, 32)
- __u32_field(14, GENLA_F_MANDATORY, helper_exit_code)
+ __str_field(13, DRBD_GENLA_F_MANDATORY, helper, 32)
+ __u32_field(14, DRBD_GENLA_F_MANDATORY, helper_exit_code)
)
GENL_struct(DRBD_NLA_START_OV_PARMS, 9, start_ov_parms,
- __u64_field(1, GENLA_F_MANDATORY, ov_start_sector)
+ __u64_field(1, DRBD_GENLA_F_MANDATORY, ov_start_sector)
)
GENL_struct(DRBD_NLA_NEW_C_UUID_PARMS, 10, new_c_uuid_parms,
- __flg_field(1, GENLA_F_MANDATORY, clear_bm)
+ __flg_field(1, DRBD_GENLA_F_MANDATORY, clear_bm)
)
GENL_struct(DRBD_NLA_TIMEOUT_PARMS, 11, timeout_parms,
- __u32_field(1, GENLA_F_REQUIRED, timeout_type)
+ __u32_field(1, DRBD_F_REQUIRED, timeout_type)
)
GENL_struct(DRBD_NLA_DISCONNECT_PARMS, 12, disconnect_parms,
- __flg_field(1, GENLA_F_MANDATORY, force_disconnect)
+ __flg_field(1, DRBD_GENLA_F_MANDATORY, force_disconnect)
)
/*
@@ -232,11 +232,11 @@ GENL_mc_group(events)
/* kernel -> userspace announcement of changes */
GENL_notification(
DRBD_EVENT, 1, events,
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_STATE_INFO, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_MANDATORY)
- GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_MANDATORY)
- GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
+ 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, DRBD_GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_DISK_CONF, DRBD_GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_SYNCER_CONF, DRBD_GENLA_F_MANDATORY)
)
/* query kernel for specific or all info */
@@ -250,116 +250,116 @@ GENL_op(
),
/* To select the object .doit.
* Or a subset of objects in .dumpit. */
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_GENLA_F_MANDATORY)
)
#if 0
/* TO BE DONE */
/* create or destroy resources, aka replication groups */
GENL_op(DRBD_ADM_CREATE_RESOURCE, 3, GENL_doit(drbd_adm_create_resource),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_DELETE_RESOURCE, 4, GENL_doit(drbd_adm_delete_resource),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
#endif
/* add DRBD minor devices as volumes to resources */
GENL_op(DRBD_ADM_ADD_MINOR, 5, GENL_doit(drbd_adm_add_minor),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_MINOR, 6, GENL_doit(drbd_adm_delete_minor),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
/* add or delete replication links to resources */
GENL_op(DRBD_ADM_ADD_LINK, 7, GENL_doit(drbd_adm_create_connection),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_LINK, 8, GENL_doit(drbd_adm_delete_connection),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_RESOURCE_OPTS, GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
+ GENL_tla_expected(DRBD_NLA_RESOURCE_OPTS, DRBD_GENLA_F_MANDATORY)
)
GENL_op(
DRBD_ADM_CONNECT, 10,
GENL_doit(drbd_adm_connect),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
+ 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, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_REQUIRED)
+ 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, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_DISK_OPTS, GENLA_F_REQUIRED)
+ 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, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
+ GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, DRBD_GENLA_F_MANDATORY)
)
GENL_op(
DRBD_ADM_PRIMARY, 14,
GENL_doit(drbd_adm_set_role),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
+ 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, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
+ 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, GENLA_F_REQUIRED)
- GENL_tla_expected(DRBD_NLA_NEW_C_UUID_PARMS, GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
+ GENL_tla_expected(DRBD_NLA_NEW_C_UUID_PARMS, DRBD_GENLA_F_MANDATORY)
)
GENL_op(
DRBD_ADM_START_OV, 17,
GENL_doit(drbd_adm_start_ov),
- GENL_tla_expected(DRBD_NLA_START_OV_PARMS, GENLA_F_MANDATORY)
+ GENL_tla_expected(DRBD_NLA_START_OV_PARMS, DRBD_GENLA_F_MANDATORY)
)
GENL_op(DRBD_ADM_DETACH, 18, GENL_doit(drbd_adm_detach),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
GENL_op(DRBD_ADM_INVALIDATE, 19, GENL_doit(drbd_adm_invalidate),
- GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ 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, GENLA_F_REQUIRED))
+ GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 2ae1612..58edd40 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -4,53 +4,6 @@
#include <linux/genl_magic_struct.h>
/*
- * Extension of genl attribute validation policies {{{1
- * {{{2
- */
-
-/**
- * nla_is_required - return true if this attribute is required
- * @nla: netlink attribute
- */
-static inline int nla_is_required(const struct nlattr *nla)
-{
- return nla->nla_type & GENLA_F_REQUIRED;
-}
-
-/**
- * nla_is_mandatory - return true if understanding this attribute is mandatory
- * @nla: netlink attribute
- * Note: REQUIRED attributes are implicitly MANDATORY as well
- */
-static inline int nla_is_mandatory(const struct nlattr *nla)
-{
- return nla->nla_type & (GENLA_F_MANDATORY | GENLA_F_REQUIRED);
-}
-
-/* Functionality to be integrated into nla_parse(), and validate_nla(),
- * respectively.
- *
- * Enforcing the "mandatory" bit is done here,
- * by rejecting unknown mandatory attributes.
- *
- * Part of enforcing the "required" flag would mean to embed it into
- * nla_policy.type, and extending validate_nla(), which currently does
- * BUG_ON(pt->type > NLA_TYPE_MAX); we have to work on existing kernels,
- * so we cannot do that. Thats why enforcing "required" is done in the
- * generated assignment functions below. */
-static int nla_check_unknown(int maxtype, struct nlattr *head, int len)
-{
- struct nlattr *nla;
- int rem;
- nla_for_each_attr(nla, head, len, rem) {
- __u16 type = nla_type(nla);
- if (type > maxtype && nla_is_mandatory(nla))
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-/*
* Magic: declare tla policy {{{1
* Magic: declare nested policies
* {{{2
@@ -80,13 +33,13 @@ static struct nla_policy s_name ## _nl_policy[] __read_mostly = \
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, _type, __get, \
__put, __is_signed) \
- [__nla_type(attr_nr)] = { .type = nla_type },
+ [attr_nr] = { .type = nla_type },
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, _type, maxlen, \
__get, __put, __is_signed) \
- [__nla_type(attr_nr)] = { .type = nla_type, \
- .len = maxlen - (nla_type == NLA_NUL_STRING) },
+ [attr_nr] = { .type = nla_type, \
+ .len = maxlen - (nla_type == NLA_NUL_STRING) },
#include GENL_MAGIC_INCLUDE_FILE
@@ -189,6 +142,43 @@ static struct nlattr *nested_attr_tb[128];
#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
#endif
+static inline int drbd_nla_check_mandatory(int maxtype, struct nlattr *nla)
+{
+ struct nlattr *head = nla_data(nla);
+ int len = nla_len(nla);
+ int rem;
+
+ /*
+ * validate_nla (called from nla_parse_nested) ignores attributes
+ * beyond maxtype, and does not understand the DRBD_GENLA_F_MANDATORY flag.
+ * In order to have it validate attributes with the DRBD_GENLA_F_MANDATORY
+ * flag set also, check and remove that flag before calling
+ * nla_parse_nested.
+ */
+
+ nla_for_each_attr(nla, head, len, rem) {
+ if (nla->nla_type & DRBD_GENLA_F_MANDATORY) {
+ if (nla_type(nla) > maxtype)
+ return -EOPNOTSUPP;
+ nla->nla_type &= ~DRBD_GENLA_F_MANDATORY;
+ }
+ }
+ return 0;
+}
+
+static inline int drbd_nla_parse_nested(struct nlattr *tb[], int maxtype,
+ struct nlattr *nla,
+ const struct nla_policy *policy)
+{
+ int err;
+
+ err = drbd_nla_check_mandatory(maxtype, nla);
+ if (!err)
+ err = nla_parse_nested(tb, maxtype, nla, policy);
+
+ return err;
+}
+
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
/* *_from_attrs functions are static, but potentially unused */ \
@@ -204,12 +194,9 @@ static int __ ## s_name ## _from_attrs(struct s_name *s, \
if (!tla) \
return -ENOMSG; \
DPRINT_TLA(#s_name, "<=-", #tag_name); \
- err = nla_parse_nested(ntb, maxtype, tla, s_name ## _nl_policy); \
+ err = drbd_nla_parse_nested(ntb, maxtype, tla, s_name ## _nl_policy); \
if (err) \
return err; \
- err = nla_check_unknown(maxtype, nla_data(tla), nla_len(tla)); \
- if (err) \
- return err; \
\
s_fields \
return 0; \
@@ -226,17 +213,17 @@ static int s_name ## _from_attrs_for_change(struct s_name *s, \
} __attribute__((unused)) \
#define __assign(attr_nr, attr_flag, name, nla_type, type, assignment...) \
- nla = ntb[__nla_type(attr_nr)]; \
+ nla = ntb[attr_nr]; \
if (nla) { \
- if (exclude_invariants && ((attr_flag) & GENLA_F_INVARIANT)) { \
+ 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) & GENLA_F_INVARIANT)) { \
+ } else if (exclude_invariants && ((attr_flag) & DRBD_F_INVARIANT)) { \
/* attribute missing from payload, */ \
/* which was expected */ \
- } else if ((attr_flag) & GENLA_F_REQUIRED) { \
+ } else if ((attr_flag) & DRBD_F_REQUIRED) { \
pr_info("<< missing attr: %s\n", #name); \
return -ENOMSG; \
}
@@ -415,7 +402,7 @@ static inline int s_name ## _to_unpriv_skb(struct sk_buff *skb, \
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put, \
__is_signed) \
- if (!exclude_sensitive || !((attr_flag) & GENLA_F_SENSITIVE)) { \
+ if (!exclude_sensitive || !((attr_flag) & DRBD_F_SENSITIVE)) { \
DPRINT_FIELD(">>", nla_type, name, s, NULL); \
__put(skb, attr_nr, s->name); \
}
@@ -423,7 +410,7 @@ static inline int s_name ## _to_unpriv_skb(struct sk_buff *skb, \
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, \
__get, __put, __is_signed) \
- if (!exclude_sensitive || !((attr_flag) & GENLA_F_SENSITIVE)) { \
+ if (!exclude_sensitive || !((attr_flag) & DRBD_F_SENSITIVE)) { \
DPRINT_ARRAY(">>",nla_type, name, s, NULL); \
__put(skb, attr_nr, min_t(int, maxlen, \
s->name ## _len + (nla_type == NLA_NUL_STRING)),\
diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h
index f3c3425..1d0bd79 100644
--- a/include/linux/genl_magic_struct.h
+++ b/include/linux/genl_magic_struct.h
@@ -26,50 +26,34 @@ extern void CONCAT_(GENL_MAGIC_FAMILY, _genl_unregister)(void);
* Extension of genl attribute validation policies {{{2
*/
-/**
- * GENLA_F_FLAGS - policy type flags to ease compatible ABI evolvement
- *
- * @GENLA_F_REQUIRED: attribute has to be present, or message is considered invalid.
- * Adding new REQUIRED attributes breaks ABI compatibility, so don't do that.
+/*
+ * @DRBD_GENLA_F_MANDATORY: By default, netlink ignores attributes it does not
+ * know about. This flag can be set in nlattr->nla_type to indicate that this
+ * attribute must not be ignored.
*
- * @GENLA_F_MANDATORY: if present, receiver _must_ understand it.
- * Without this, unknown attributes (> maxtype) are _silently_ ignored
- * by validate_nla().
+ * We check and remove this flag in drbd_nla_check_mandatory() before
+ * validating the attribute types and lengths via nla_parse_nested().
+ */
+#define DRBD_GENLA_F_MANDATORY (1 << 14)
+
+/*
+ * Flags specific to drbd and not visible at the netlink layer, used in
+ * <struct>_from_attrs and <struct>_to_skb:
*
- * To be used for API extensions, so older kernel can reject requests for not
- * yet implemented features, if newer userland tries to use them even though
- * the genl_family version clearly indicates they are not available.
+ * @DRBD_F_REQUIRED: Attribute is required; a request without this attribute is
+ * invalid.
*
- * NOTE: These flags overload
- * NLA_F_NESTED (1 << 15)
- * NLA_F_NET_BYTEORDER (1 << 14)
- * from linux/netlink.h, which are not useful for validate_nla():
- * NET_BYTEORDER is not used anywhere, and NESTED would be specified by setting
- * .type = NLA_NESTED in the appropriate policy.
+ * @DRBD_F_SENSITIVE: Attribute includes sensitive information and must not be
+ * included in unpriviledged get requests or broadcasts.
*
- * See also: nla_type()
+ * @DRBD_F_INVARIANT: Attribute is set when an object is initially created, but
+ * cannot subsequently be changed.
*/
-enum {
- GENLA_F_MANDATORY = 1 << 14,
- GENLA_F_REQUIRED = 1 << 15,
-
- /* Below will not be present in the __u16 .nla_type, but can be
- * triggered on in <struct>_to_skb resp. <struct>_from_attrs */
-
- /* To exclude "sensitive" information from broadcasts, or on
- * unpriviledged get requests. This is useful because genetlink
- * multicast groups can be listened in on by anyone. */
- GENLA_F_SENSITIVE = 1 << 16,
-
- /* INVARIAN options cannot be changed at runtime.
- * Useful to share an attribute policy and struct definition,
- * between some "create" and "change" commands,
- * but disallow certain fields to be changed online.
- */
- GENLA_F_INVARIANT = 1 << 17,
-};
+#define DRBD_F_REQUIRED (1 << 0)
+#define DRBD_F_SENSITIVE (1 << 1)
+#define DRBD_F_INVARIANT (1 << 2)
-#define __nla_type(x) ((__u16)((__u16)(x) & (__u16)NLA_TYPE_MASK))
+#define __nla_type(x) ((__u16)((x) & NLA_TYPE_MASK & ~DRBD_GENLA_F_MANDATORY))
/* }}}1
* MAGIC
@@ -170,12 +154,12 @@ enum { \
#undef __field
#define __field(attr_nr, attr_flag, name, nla_type, type, \
__get, __put, __is_signed) \
- T_ ## name = (__u16)(attr_nr | attr_flag),
+ T_ ## name = (__u16)(attr_nr | ((attr_flag) & DRBD_GENLA_F_MANDATORY)),
#undef __array
#define __array(attr_nr, attr_flag, name, nla_type, type, \
maxlen, __get, __put, __is_signed) \
- T_ ## name = (__u16)(attr_nr | attr_flag),
+ T_ ## name = (__u16)(attr_nr | ((attr_flag) & DRBD_GENLA_F_MANDATORY)),
#include GENL_MAGIC_INCLUDE_FILE
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