linux-kernel - [PATCH net-next 04/15] mptcp: add token for get-addr in yaml

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Message-Id: <20240301-upstream-net-next-20240301-mptcp-userspace-pm-dump-addr-v1-4-dc30a420b3a0@kernel.org>
Date: Fri, 01 Mar 2024 19:18:28 +0100
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>, 
 Geliang Tang <geliang@...nel.org>, "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>
Cc: Geliang Tang <tanggeliang@...inos.cn>, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
Subject: [PATCH net-next 04/15] mptcp: add token for get-addr in yaml

From: Geliang Tang <tanggeliang@...inos.cn>

This patch adds token parameter together with addr in get-addr section in
mptcp_pm.yaml, then use the following commands to update mptcp_pm_gen.c
and mptcp_pm_gen.h:

/tools/net/ynl/ynl-gen-c.py --mode kernel \
        --spec Documentation/netlink/specs/mptcp_pm.yaml --source \
        -o net/mptcp/mptcp_pm_gen.c
/tools/net/ynl/ynl-gen-c.py --mode kernel \
        --spec Documentation/netlink/specs/mptcp_pm.yaml --header \
        -o net/mptcp/mptcp_pm_gen.h

Signed-off-by: Geliang Tang <tanggeliang@...inos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
Reviewed-by: Mat Martineau <martineau@...nel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
 Documentation/netlink/specs/mptcp_pm.yaml | 3 ++-
 net/mptcp/mptcp_pm_gen.c                  | 7 ++++---
 net/mptcp/mptcp_pm_gen.h                  | 2 +-
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/Documentation/netlink/specs/mptcp_pm.yaml b/Documentation/netlink/specs/mptcp_pm.yaml
index 49f90cfb4698..af525ed29792 100644
--- a/Documentation/netlink/specs/mptcp_pm.yaml
+++ b/Documentation/netlink/specs/mptcp_pm.yaml
@@ -292,13 +292,14 @@ operations:
     -
       name: get-addr
       doc: Get endpoint information
-      attribute-set: endpoint
+      attribute-set: attr
       dont-validate: [ strict ]
       flags: [ uns-admin-perm ]
       do: &get-addr-attrs
         request:
           attributes:
            - addr
+           - token
         reply:
           attributes:
            - addr
diff --git a/net/mptcp/mptcp_pm_gen.c b/net/mptcp/mptcp_pm_gen.c
index 670da7822e6c..c30a2a90a192 100644
--- a/net/mptcp/mptcp_pm_gen.c
+++ b/net/mptcp/mptcp_pm_gen.c
@@ -32,8 +32,9 @@ const struct nla_policy mptcp_pm_del_addr_nl_policy[MPTCP_PM_ENDPOINT_ADDR + 1]
 };
 
 /* MPTCP_PM_CMD_GET_ADDR - do */
-const struct nla_policy mptcp_pm_get_addr_nl_policy[MPTCP_PM_ENDPOINT_ADDR + 1] = {
-	[MPTCP_PM_ENDPOINT_ADDR] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+const struct nla_policy mptcp_pm_get_addr_nl_policy[MPTCP_PM_ATTR_TOKEN + 1] = {
+	[MPTCP_PM_ATTR_ADDR] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+	[MPTCP_PM_ATTR_TOKEN] = { .type = NLA_U32, },
 };
 
 /* MPTCP_PM_CMD_FLUSH_ADDRS - do */
@@ -110,7 +111,7 @@ const struct genl_ops mptcp_pm_nl_ops[11] = {
 		.doit		= mptcp_pm_nl_get_addr_doit,
 		.dumpit		= mptcp_pm_nl_get_addr_dumpit,
 		.policy		= mptcp_pm_get_addr_nl_policy,
-		.maxattr	= MPTCP_PM_ENDPOINT_ADDR,
+		.maxattr	= MPTCP_PM_ATTR_TOKEN,
 		.flags		= GENL_UNS_ADMIN_PERM,
 	},
 	{
diff --git a/net/mptcp/mptcp_pm_gen.h b/net/mptcp/mptcp_pm_gen.h
index ac9fc7225b6a..e24258f6f819 100644
--- a/net/mptcp/mptcp_pm_gen.h
+++ b/net/mptcp/mptcp_pm_gen.h
@@ -18,7 +18,7 @@ extern const struct nla_policy mptcp_pm_add_addr_nl_policy[MPTCP_PM_ENDPOINT_ADD
 
 extern const struct nla_policy mptcp_pm_del_addr_nl_policy[MPTCP_PM_ENDPOINT_ADDR + 1];
 
-extern const struct nla_policy mptcp_pm_get_addr_nl_policy[MPTCP_PM_ENDPOINT_ADDR + 1];
+extern const struct nla_policy mptcp_pm_get_addr_nl_policy[MPTCP_PM_ATTR_TOKEN + 1];
 
 extern const struct nla_policy mptcp_pm_flush_addrs_nl_policy[MPTCP_PM_ENDPOINT_ADDR + 1];
 

-- 
2.43.0