From nobody Mon Feb 9 17:08:09 2026 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 9F4ED17BD3 for ; Thu, 22 Feb 2024 08:04:07 +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=1708589047; cv=none; b=UKqACwIrPug4xqiIVOuMfRpsxyWMGvLVft2CxfCyvyhqs6fG3tcmTcKwMzxiDkcaaY6YQW2EvnnoA+B+C1Xp32JA/nRQpXAW0Quu2fxMaarFCwPubpcg4mx0bJYWPKPREGetHkwA73AhOv2HYRHBmX3vc5AF1ZsQZcmKAKVuNn0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708589047; c=relaxed/simple; bh=fAy7vYN6t5YdsccNbCCfIufVORVxTGBp+1/VDFrXN3A=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=cVhTR2SQV9CBtuTa/qmz1jgNznI33NiI6Punw+1fiqoy7FoEwEbXKNVpf+uHtnTS+KuVQiWmtd8h9wg9JA449/GYAYD2L7SKD+GKPLIB5dD69QtNVjQXsAd7EJy1XTTGH42tU3Odu5MoSSrye+ef9KVkqtRTDgYirRgXTiPFKCQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fcNtZJ/n; 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="fcNtZJ/n" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 689A2C43390; Thu, 22 Feb 2024 08:04:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708589047; bh=fAy7vYN6t5YdsccNbCCfIufVORVxTGBp+1/VDFrXN3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fcNtZJ/nb19qL7x6haoNmcnEwqs8wEqd13S3zXMQW8HiPEPluNelDSUAcBYFtf3OX WuD1NLEP21GlxkEJ0nVQGM6CF5B0BHfqEjwVNb61J6U0WupMUrhBFzeKyDC0+xKV4B k/PqLV8tWQab9li28XHHKVMExSHmT4Z2annzNI2h/5VMHVPiz4DwDqWkE/FgCh2ukw phtn6TKVJHRCTjx66MdRSOBA4dmnGVs4veOqTkMjzkQ4t3yna6jSFBT68wJJOP0pb8 owSkYUnHb+cvvUQgY3zYukaOUnQQkSC3jRw/V6EBsM3JhqSaxA5LKWZJw2yVVHJJ30 WgPAUziAM04zg== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v2 3/7] mptcp: update set_flags interfaces Date: Thu, 22 Feb 2024 16:03:54 +0800 Message-Id: <79caf5e28b53cf570ceb4cfec579d470a6eb030b.1708588977.git.tanggeliang@kylinos.cn> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch updates set_flags interfaces, make it more similar to the interfaces of dump_addr and get_addr: mptcp_pm_set_flags(struct sk_buff *skb, struct genl_info *info) mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info) mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info) Signed-off-by: Geliang Tang --- net/mptcp/pm.c | 10 +++---- net/mptcp/pm_netlink.c | 58 +++++++++++++++++----------------------- net/mptcp/pm_userspace.c | 32 +++++++++++++++++----- net/mptcp/protocol.h | 10 +++---- 4 files changed, 58 insertions(+), 52 deletions(-) diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 28e5d514bf20..55406720c607 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -456,13 +456,11 @@ int mptcp_pm_dump_addr(struct sk_buff *msg, struct ne= tlink_callback *cb) return mptcp_pm_nl_dump_addr(msg, cb); } =20 -int mptcp_pm_set_flags(struct net *net, struct nlattr *token, - struct mptcp_pm_addr_entry *loc, - struct mptcp_pm_addr_entry *rem, u8 bkup) +int mptcp_pm_set_flags(struct sk_buff *skb, struct genl_info *info) { - if (token) - return mptcp_userspace_pm_set_flags(net, token, loc, rem, bkup); - return mptcp_pm_nl_set_flags(net, loc, bkup); + if (info->attrs[MPTCP_PM_ATTR_TOKEN]) + return mptcp_userspace_pm_set_flags(skb, info); + return mptcp_pm_nl_set_flags(skb, info); } =20 void mptcp_pm_subflow_chk_stale(const struct mptcp_sock *msk, struct sock = *ssk) diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index a900df9f173d..c799fe84dfd3 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -1887,66 +1887,58 @@ static int mptcp_nl_set_flags(struct net *net, return ret; } =20 -int mptcp_pm_nl_set_flags(struct net *net, struct mptcp_pm_addr_entry *add= r, u8 bkup) +int mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info) { - struct pm_nl_pernet *pernet =3D pm_nl_get_pernet(net); + struct mptcp_pm_addr_entry addr =3D { .addr =3D { .family =3D AF_UNSPEC }= , }; + struct nlattr *attr =3D info->attrs[MPTCP_PM_ATTR_ADDR]; u8 changed, mask =3D MPTCP_PM_ADDR_FLAG_BACKUP | MPTCP_PM_ADDR_FLAG_FULLMESH; + struct net *net =3D sock_net(skb->sk); struct mptcp_pm_addr_entry *entry; + struct pm_nl_pernet *pernet; u8 lookup_by_id =3D 0; + u8 bkup =3D 0; + int ret; + + pernet =3D pm_nl_get_pernet(net); + + ret =3D mptcp_pm_parse_entry(attr, info, false, &addr); + if (ret < 0) + return ret; =20 - if (addr->addr.family =3D=3D AF_UNSPEC) { + if (addr.addr.family =3D=3D AF_UNSPEC) { lookup_by_id =3D 1; - if (!addr->addr.id) + if (!addr.addr.id) return -EOPNOTSUPP; } =20 + if (addr.flags & MPTCP_PM_ADDR_FLAG_BACKUP) + bkup =3D 1; + spin_lock_bh(&pernet->lock); - entry =3D __lookup_addr(pernet, &addr->addr, lookup_by_id); + entry =3D __lookup_addr(pernet, &addr.addr, lookup_by_id); if (!entry) { spin_unlock_bh(&pernet->lock); return -EINVAL; } - if ((addr->flags & MPTCP_PM_ADDR_FLAG_FULLMESH) && + if ((addr.flags & MPTCP_PM_ADDR_FLAG_FULLMESH) && (entry->flags & MPTCP_PM_ADDR_FLAG_SIGNAL)) { spin_unlock_bh(&pernet->lock); return -EINVAL; } =20 - changed =3D (addr->flags ^ entry->flags) & mask; - entry->flags =3D (entry->flags & ~mask) | (addr->flags & mask); - *addr =3D *entry; + changed =3D (addr.flags ^ entry->flags) & mask; + entry->flags =3D (entry->flags & ~mask) | (addr.flags & mask); + addr =3D *entry; spin_unlock_bh(&pernet->lock); =20 - mptcp_nl_set_flags(net, &addr->addr, bkup, changed); + mptcp_nl_set_flags(net, &addr.addr, bkup, changed); return 0; } =20 int mptcp_pm_nl_set_flags_doit(struct sk_buff *skb, struct genl_info *info) { - struct mptcp_pm_addr_entry remote =3D { .addr =3D { .family =3D AF_UNSPEC= }, }; - struct mptcp_pm_addr_entry addr =3D { .addr =3D { .family =3D AF_UNSPEC }= , }; - struct nlattr *attr_rem =3D info->attrs[MPTCP_PM_ATTR_ADDR_REMOTE]; - struct nlattr *token =3D info->attrs[MPTCP_PM_ATTR_TOKEN]; - struct nlattr *attr =3D info->attrs[MPTCP_PM_ATTR_ADDR]; - struct net *net =3D sock_net(skb->sk); - u8 bkup =3D 0; - int ret; - - ret =3D mptcp_pm_parse_entry(attr, info, false, &addr); - if (ret < 0) - return ret; - - if (attr_rem) { - ret =3D mptcp_pm_parse_entry(attr_rem, info, false, &remote); - if (ret < 0) - return ret; - } - - if (addr.flags & MPTCP_PM_ADDR_FLAG_BACKUP) - bkup =3D 1; - - return mptcp_pm_set_flags(net, token, &addr, &remote, bkup); + return mptcp_pm_set_flags(skb, info); } =20 static void mptcp_nl_mcast_send(struct net *net, struct sk_buff *nlskb, gf= p_t gfp) diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index b9809d988693..7ef3b69852f0 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -546,14 +546,19 @@ int mptcp_pm_nl_subflow_destroy_doit(struct sk_buff *= skb, struct genl_info *info return err; } =20 -int mptcp_userspace_pm_set_flags(struct net *net, struct nlattr *token, - struct mptcp_pm_addr_entry *loc, - struct mptcp_pm_addr_entry *rem, u8 bkup) +int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *in= fo) { + struct mptcp_pm_addr_entry loc =3D { .addr =3D { .family =3D AF_UNSPEC },= }; + struct mptcp_pm_addr_entry rem =3D { .addr =3D { .family =3D AF_UNSPEC },= }; + struct nlattr *attr_rem =3D info->attrs[MPTCP_PM_ATTR_ADDR_REMOTE]; + struct nlattr *token =3D info->attrs[MPTCP_PM_ATTR_TOKEN]; + struct nlattr *attr =3D info->attrs[MPTCP_PM_ATTR_ADDR]; + struct net *net =3D sock_net(skb->sk); struct mptcp_sock *msk; int ret =3D -EINVAL; struct sock *sk; u32 token_val; + u8 bkup =3D 0; =20 token_val =3D nla_get_u32(token); =20 @@ -566,12 +571,27 @@ int mptcp_userspace_pm_set_flags(struct net *net, str= uct nlattr *token, if (!mptcp_pm_is_userspace(msk)) goto set_flags_err; =20 - if (loc->addr.family =3D=3D AF_UNSPEC || - rem->addr.family =3D=3D AF_UNSPEC) + ret =3D mptcp_pm_parse_entry(attr, info, false, &loc); + if (ret < 0) + goto set_flags_err; + + if (attr_rem) { + ret =3D mptcp_pm_parse_entry(attr_rem, info, false, &rem); + if (ret < 0) + goto set_flags_err; + } + + if (loc.addr.family =3D=3D AF_UNSPEC || + rem.addr.family =3D=3D AF_UNSPEC) { + ret =3D -EINVAL; goto set_flags_err; + } + + if (loc.flags & MPTCP_PM_ADDR_FLAG_BACKUP) + bkup =3D 1; =20 lock_sock(sk); - ret =3D mptcp_pm_nl_mp_prio_send_ack(msk, &loc->addr, &rem->addr, bkup); + ret =3D mptcp_pm_nl_mp_prio_send_ack(msk, &loc.addr, &rem.addr, bkup); release_sock(sk); =20 set_flags_err: diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 746d0d1f94ec..7905783c95e4 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -975,13 +975,9 @@ int mptcp_pm_nl_get_flags_and_ifindex_by_id(struct mpt= cp_sock *msk, unsigned int int mptcp_userspace_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, u8 *flags, int *ifindex); -int mptcp_pm_set_flags(struct net *net, struct nlattr *token, - struct mptcp_pm_addr_entry *loc, - struct mptcp_pm_addr_entry *rem, u8 bkup); -int mptcp_pm_nl_set_flags(struct net *net, struct mptcp_pm_addr_entry *add= r, u8 bkup); -int mptcp_userspace_pm_set_flags(struct net *net, struct nlattr *token, - struct mptcp_pm_addr_entry *loc, - struct mptcp_pm_addr_entry *rem, u8 bkup); +int mptcp_pm_set_flags(struct sk_buff *skb, struct genl_info *info); +int mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info); +int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *in= fo); int mptcp_pm_announce_addr(struct mptcp_sock *msk, const struct mptcp_addr_info *addr, bool echo); --=20 2.40.1