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Diffstat (limited to 'net/devlink/netlink.c')
-rw-r--r--net/devlink/netlink.c393
1 files changed, 334 insertions, 59 deletions
diff --git a/net/devlink/netlink.c b/net/devlink/netlink.c
index 7a332eb70f70..fc3e7c029a3b 100644
--- a/net/devlink/netlink.c
+++ b/net/devlink/netlink.c
@@ -82,6 +82,21 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
[DEVLINK_ATTR_REGION_DIRECT] = { .type = NLA_FLAG },
};
+int devlink_nl_msg_reply_and_new(struct sk_buff **msg, struct genl_info *info)
+{
+ int err;
+
+ if (*msg) {
+ err = genlmsg_reply(*msg, info);
+ if (err)
+ return err;
+ }
+ *msg = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!*msg)
+ return -ENOMEM;
+ return 0;
+}
+
struct devlink *
devlink_get_from_attrs_lock(struct net *net, struct nlattr **attrs)
{
@@ -109,10 +124,9 @@ devlink_get_from_attrs_lock(struct net *net, struct nlattr **attrs)
return ERR_PTR(-ENODEV);
}
-static int devlink_nl_pre_doit(const struct genl_split_ops *ops,
- struct sk_buff *skb, struct genl_info *info)
+static int __devlink_nl_pre_doit(struct sk_buff *skb, struct genl_info *info,
+ u8 flags)
{
- struct devlink_linecard *linecard;
struct devlink_port *devlink_port;
struct devlink *devlink;
int err;
@@ -122,42 +136,17 @@ static int devlink_nl_pre_doit(const struct genl_split_ops *ops,
return PTR_ERR(devlink);
info->user_ptr[0] = devlink;
- if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) {
+ if (flags & DEVLINK_NL_FLAG_NEED_PORT) {
devlink_port = devlink_port_get_from_info(devlink, info);
if (IS_ERR(devlink_port)) {
err = PTR_ERR(devlink_port);
goto unlock;
}
info->user_ptr[1] = devlink_port;
- } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) {
+ } else if (flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) {
devlink_port = devlink_port_get_from_info(devlink, info);
if (!IS_ERR(devlink_port))
info->user_ptr[1] = devlink_port;
- } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE) {
- struct devlink_rate *devlink_rate;
-
- devlink_rate = devlink_rate_get_from_info(devlink, info);
- if (IS_ERR(devlink_rate)) {
- err = PTR_ERR(devlink_rate);
- goto unlock;
- }
- info->user_ptr[1] = devlink_rate;
- } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE_NODE) {
- struct devlink_rate *rate_node;
-
- rate_node = devlink_rate_node_get_from_info(devlink, info);
- if (IS_ERR(rate_node)) {
- err = PTR_ERR(rate_node);
- goto unlock;
- }
- info->user_ptr[1] = rate_node;
- } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) {
- linecard = devlink_linecard_get_from_info(devlink, info);
- if (IS_ERR(linecard)) {
- err = PTR_ERR(linecard);
- goto unlock;
- }
- info->user_ptr[1] = linecard;
}
return 0;
@@ -167,8 +156,27 @@ unlock:
return err;
}
-static void devlink_nl_post_doit(const struct genl_split_ops *ops,
- struct sk_buff *skb, struct genl_info *info)
+int devlink_nl_pre_doit(const struct genl_split_ops *ops,
+ struct sk_buff *skb, struct genl_info *info)
+{
+ return __devlink_nl_pre_doit(skb, info, ops->internal_flags);
+}
+
+int devlink_nl_pre_doit_port(const struct genl_split_ops *ops,
+ struct sk_buff *skb, struct genl_info *info)
+{
+ return __devlink_nl_pre_doit(skb, info, DEVLINK_NL_FLAG_NEED_PORT);
+}
+
+int devlink_nl_pre_doit_port_optional(const struct genl_split_ops *ops,
+ struct sk_buff *skb,
+ struct genl_info *info)
+{
+ return __devlink_nl_pre_doit(skb, info, DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT);
+}
+
+void devlink_nl_post_doit(const struct genl_split_ops *ops,
+ struct sk_buff *skb, struct genl_info *info)
{
struct devlink *devlink;
@@ -177,42 +185,41 @@ static void devlink_nl_post_doit(const struct genl_split_ops *ops,
devlink_put(devlink);
}
-static const struct devlink_cmd *devl_cmds[] = {
- [DEVLINK_CMD_GET] = &devl_cmd_get,
- [DEVLINK_CMD_PORT_GET] = &devl_cmd_port_get,
- [DEVLINK_CMD_SB_GET] = &devl_cmd_sb_get,
- [DEVLINK_CMD_SB_POOL_GET] = &devl_cmd_sb_pool_get,
- [DEVLINK_CMD_SB_PORT_POOL_GET] = &devl_cmd_sb_port_pool_get,
- [DEVLINK_CMD_SB_TC_POOL_BIND_GET] = &devl_cmd_sb_tc_pool_bind_get,
- [DEVLINK_CMD_PARAM_GET] = &devl_cmd_param_get,
- [DEVLINK_CMD_REGION_GET] = &devl_cmd_region_get,
- [DEVLINK_CMD_INFO_GET] = &devl_cmd_info_get,
- [DEVLINK_CMD_HEALTH_REPORTER_GET] = &devl_cmd_health_reporter_get,
- [DEVLINK_CMD_TRAP_GET] = &devl_cmd_trap_get,
- [DEVLINK_CMD_TRAP_GROUP_GET] = &devl_cmd_trap_group_get,
- [DEVLINK_CMD_TRAP_POLICER_GET] = &devl_cmd_trap_policer_get,
- [DEVLINK_CMD_RATE_GET] = &devl_cmd_rate_get,
- [DEVLINK_CMD_LINECARD_GET] = &devl_cmd_linecard_get,
- [DEVLINK_CMD_SELFTESTS_GET] = &devl_cmd_selftests_get,
-};
+static int devlink_nl_inst_single_dumpit(struct sk_buff *msg,
+ struct netlink_callback *cb, int flags,
+ devlink_nl_dump_one_func_t *dump_one,
+ struct nlattr **attrs)
+{
+ struct devlink *devlink;
+ int err;
+
+ devlink = devlink_get_from_attrs_lock(sock_net(msg->sk), attrs);
+ if (IS_ERR(devlink))
+ return PTR_ERR(devlink);
+ err = dump_one(msg, devlink, cb, flags | NLM_F_DUMP_FILTERED);
+
+ devl_unlock(devlink);
+ devlink_put(devlink);
+
+ if (err != -EMSGSIZE)
+ return err;
+ return msg->len;
+}
-int devlink_nl_instance_iter_dumpit(struct sk_buff *msg,
- struct netlink_callback *cb)
+static int devlink_nl_inst_iter_dumpit(struct sk_buff *msg,
+ struct netlink_callback *cb, int flags,
+ devlink_nl_dump_one_func_t *dump_one)
{
- const struct genl_dumpit_info *info = genl_dumpit_info(cb);
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
- const struct devlink_cmd *cmd;
struct devlink *devlink;
int err = 0;
- cmd = devl_cmds[info->op.cmd];
-
while ((devlink = devlinks_xa_find_get(sock_net(msg->sk),
&state->instance))) {
devl_lock(devlink);
if (devl_is_registered(devlink))
- err = cmd->dump_one(msg, devlink, cb);
+ err = dump_one(msg, devlink, cb, flags);
else
err = 0;
@@ -233,6 +240,272 @@ int devlink_nl_instance_iter_dumpit(struct sk_buff *msg,
return msg->len;
}
+int devlink_nl_dumpit(struct sk_buff *msg, struct netlink_callback *cb,
+ devlink_nl_dump_one_func_t *dump_one)
+{
+ const struct genl_info *info = genl_info_dump(cb);
+ struct nlattr **attrs = info->attrs;
+ int flags = NLM_F_MULTI;
+
+ if (attrs &&
+ (attrs[DEVLINK_ATTR_BUS_NAME] || attrs[DEVLINK_ATTR_DEV_NAME]))
+ return devlink_nl_inst_single_dumpit(msg, cb, flags, dump_one,
+ attrs);
+ else
+ return devlink_nl_inst_iter_dumpit(msg, cb, flags, dump_one);
+}
+
+static const struct genl_small_ops devlink_nl_small_ops[40] = {
+ {
+ .cmd = DEVLINK_CMD_PORT_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_RATE_SET,
+ .doit = devlink_nl_cmd_rate_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RATE_NEW,
+ .doit = devlink_nl_cmd_rate_new_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RATE_DEL,
+ .doit = devlink_nl_cmd_rate_del_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_SPLIT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_split_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_UNSPLIT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_unsplit_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_NEW,
+ .doit = devlink_nl_cmd_port_new_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_DEL,
+ .doit = devlink_nl_cmd_port_del_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+
+ {
+ .cmd = DEVLINK_CMD_LINECARD_SET,
+ .doit = devlink_nl_cmd_linecard_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_POOL_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_pool_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_port_pool_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_occ_snapshot_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_occ_max_clear_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_ESWITCH_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_eswitch_get_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_ESWITCH_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_eswitch_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_TABLE_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_table_get,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_entries_get,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_headers_get,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_table_counters_set,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RESOURCE_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_resource_set,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RESOURCE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_resource_dump,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_RELOAD,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_reload,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PARAM_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_param_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_PARAM_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_param_get_doit,
+ .dumpit = devlink_nl_cmd_port_param_get_dumpit,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_PARAM_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_param_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_REGION_NEW,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_region_new,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_REGION_DEL,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_region_del,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_REGION_READ,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ .dumpit = devlink_nl_cmd_region_read_dumpit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_recover_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_diagnose_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_dump_clear_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_test_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_FLASH_UPDATE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_flash_update,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_TRAP_SET,
+ .doit = devlink_nl_cmd_trap_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_TRAP_GROUP_SET,
+ .doit = devlink_nl_cmd_trap_group_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_TRAP_POLICER_SET,
+ .doit = devlink_nl_cmd_trap_policer_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SELFTESTS_RUN,
+ .doit = devlink_nl_cmd_selftests_run,
+ .flags = GENL_ADMIN_PERM,
+ },
+ /* -- No new ops here! Use split ops going forward! -- */
+};
+
struct genl_family devlink_nl_family __ro_after_init = {
.name = DEVLINK_GENL_NAME,
.version = DEVLINK_GENL_VERSION,
@@ -243,8 +516,10 @@ struct genl_family devlink_nl_family __ro_after_init = {
.pre_doit = devlink_nl_pre_doit,
.post_doit = devlink_nl_post_doit,
.module = THIS_MODULE,
- .small_ops = devlink_nl_ops,
- .n_small_ops = ARRAY_SIZE(devlink_nl_ops),
+ .small_ops = devlink_nl_small_ops,
+ .n_small_ops = ARRAY_SIZE(devlink_nl_small_ops),
+ .split_ops = devlink_nl_ops,
+ .n_split_ops = ARRAY_SIZE(devlink_nl_ops),
.resv_start_op = DEVLINK_CMD_SELFTESTS_RUN + 1,
.mcgrps = devlink_nl_mcgrps,
.n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps),
generated by cgit (git 2.34.1) at 2024-06-13 22:03:03 +0000