From patchwork Tue Oct 22 09:14:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 13845382 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7871A2BB09 for ; Tue, 22 Oct 2024 09:15:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729588507; cv=none; b=lhbLSS98ohEnV93uWFO6RuMPUsMFPTln5IwwFSP5Qzd0L11P4EBQjEUHydUuDbu8SgCEeRLfBDS1k9i1hiQf7PDEPbiF5bU66Pfqc3q5vtA7B0xssvTuvXLB98sn/z2cTGswQ4HcmBoMGDWQUmqTq2QzEJ//GyYX7fBH9Iqjhyg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729588507; c=relaxed/simple; bh=/as+1EmERz3FSRptFqbk1nqCpHP/LBOcXbktf/Wh0U4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=coWBd4VYdK8HNonxJZ32bxzctnzq0swXEI74oOh2pdY7IFn667uq7exkYn0AWmCBsqh9khuHQWaBDS0uYZKR7rTdv3JlRnSze4U4t+c1H+IzLN6/kaqiqcOEgFYv3VW58+wAN+t0O1Y2kkefU1MIGMqGbNSI46lquO7ObP8TXzQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hNaP/Vxc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hNaP/Vxc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A85DC4CEC3; Tue, 22 Oct 2024 09:15:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729588507; bh=/as+1EmERz3FSRptFqbk1nqCpHP/LBOcXbktf/Wh0U4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hNaP/VxciGpps+tGL4kNtzQvBMFEILmatv8+VhWkJ4TFRnLkTDeSMvVUIfI7jr7EN 3J/vnjgDuYkQTVoS3zF+DuIEDja2HDKFPD2gIFEuNtoKyy5EqqF6STvlCCKSx/WwdS 1+ti+kh7XywStsQZE2tdS+vrfnj28qKzp0ndwG7cascoOKrOK64R2Z1HZEZr2WXng+ hPXnLvk7Gsh99nc+CPG4llMNIv2ZKKKEwsIR9jWAczPyosQAHIOElJSMaiHgvlKe3a zmcwHeLpG8EGKSnw0CvfzQwo1YIw4PbTAAc4WrHNm5VJShaKo1S5BEA6YYSw+tXz0Q 6Dmn5oMk5QIPA== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v2 09/36] mptcp: add id parameter for get_addr Date: Tue, 22 Oct 2024 17:14:17 +0800 Message-ID: <9d0ea1bc8a284b6465d8840a7badd7a0afb7ee24.1729588019.git.tanggeliang@kylinos.cn> X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Geliang Tang The address id is parsed both in mptcp_pm_nl_get_addr() and mptcp_userspace_pm_get_addr(), this makes the code somewhat repetitive. So this patch adds a new parameter "id" for all get_addr() interfaces. The address id is only parsed in mptcp_pm_nl_get_addr_doit(), then pass it to both mptcp_pm_nl_get_addr() and mptcp_userspace_pm_get_addr(). Signed-off-by: Geliang Tang --- net/mptcp/pm_netlink.c | 28 ++++++++++++++++------------ net/mptcp/pm_userspace.c | 11 +++-------- net/mptcp/protocol.h | 2 +- 3 files changed, 20 insertions(+), 21 deletions(-) diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index 90279732d226..9a886caa336e 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -1792,19 +1792,14 @@ int mptcp_nl_fill_addr(struct sk_buff *skb, return -EMSGSIZE; } -static int mptcp_pm_nl_get_addr(struct genl_info *info) +static int mptcp_pm_nl_get_addr(u8 id, struct genl_info *info) { - struct nlattr *attr = info->attrs[MPTCP_PM_ENDPOINT_ADDR]; struct pm_nl_pernet *pernet = genl_info_pm_nl(info); - struct mptcp_pm_addr_entry addr, *entry; + struct mptcp_pm_addr_entry *entry; struct sk_buff *msg; void *reply; int ret; - ret = mptcp_pm_parse_entry(attr, info, false, &addr); - if (ret < 0) - return ret; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return -ENOMEM; @@ -1818,7 +1813,7 @@ static int mptcp_pm_nl_get_addr(struct genl_info *info) } spin_lock_bh(&pernet->lock); - entry = __lookup_addr_by_id(pernet, addr.addr.id); + entry = __lookup_addr_by_id(pernet, id); if (!entry) { GENL_SET_ERR_MSG(info, "address not found"); ret = -EINVAL; @@ -1842,16 +1837,25 @@ static int mptcp_pm_nl_get_addr(struct genl_info *info) return ret; } -static int mptcp_pm_get_addr(struct genl_info *info) +static int mptcp_pm_get_addr(u8 id, struct genl_info *info) { if (info->attrs[MPTCP_PM_ATTR_TOKEN]) - return mptcp_userspace_pm_get_addr(info); - return mptcp_pm_nl_get_addr(info); + return mptcp_userspace_pm_get_addr(id, info); + return mptcp_pm_nl_get_addr(id, info); } int mptcp_pm_nl_get_addr_doit(struct sk_buff *skb, struct genl_info *info) { - return mptcp_pm_get_addr(info); + struct nlattr *attr = info->attrs[MPTCP_PM_ENDPOINT_ADDR]; + struct mptcp_pm_addr_entry addr; + int ret; + + ret = mptcp_pm_parse_entry(attr, info, false, &addr); + if (ret < 0) + return ret; + + ret = mptcp_pm_get_addr(addr.addr.id, info); + return ret; } static int mptcp_pm_nl_dump_addr(struct sk_buff *msg, diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index e61cc1805cee..079baceb9ca1 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -632,10 +632,9 @@ int mptcp_userspace_pm_dump_addr(struct sk_buff *msg, return ret; } -int mptcp_userspace_pm_get_addr(struct genl_info *info) +int mptcp_userspace_pm_get_addr(u8 id, struct genl_info *info) { - struct nlattr *attr = info->attrs[MPTCP_PM_ENDPOINT_ADDR]; - struct mptcp_pm_addr_entry addr, *entry; + struct mptcp_pm_addr_entry *entry; struct mptcp_sock *msk; struct sk_buff *msg; int ret = -EINVAL; @@ -648,10 +647,6 @@ int mptcp_userspace_pm_get_addr(struct genl_info *info) sk = (struct sock *)msk; - ret = mptcp_pm_parse_entry(attr, info, false, &addr); - if (ret < 0) - goto out; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) { ret = -ENOMEM; @@ -668,7 +663,7 @@ int mptcp_userspace_pm_get_addr(struct genl_info *info) lock_sock(sk); spin_lock_bh(&msk->pm.lock); - entry = mptcp_userspace_pm_lookup_addr_by_id(msk, addr.addr.id); + entry = mptcp_userspace_pm_lookup_addr_by_id(msk, id); if (!entry) { GENL_SET_ERR_MSG(info, "address not found"); ret = -EINVAL; diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index b991c65b0a72..6326e8f4bf5c 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -1128,7 +1128,7 @@ bool mptcp_pm_nl_is_backup(struct mptcp_sock *msk, struct mptcp_addr_info *skc); bool mptcp_userspace_pm_is_backup(struct mptcp_sock *msk, struct mptcp_addr_info *skc); int mptcp_userspace_pm_dump_addr(struct sk_buff *msg, struct netlink_callback *cb); -int mptcp_userspace_pm_get_addr(struct genl_info *info); +int mptcp_userspace_pm_get_addr(u8 id, struct genl_info *info); static inline u8 subflow_get_local_id(const struct mptcp_subflow_context *subflow) {