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[144.76.156.219]) by smtp.gmail.com with ESMTPSA id 16-20020a05600c021000b003f7f1b3aff1sm5001100wmi.26.2023.06.08.06.21.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jun 2023 06:21:13 -0700 (PDT) From: Matthieu Baerts Date: Thu, 08 Jun 2023 15:20:51 +0200 Subject: [PATCH net-next 3/4] mptcp: unify pm get_flags_and_ifindex_by_id MIME-Version: 1.0 Message-Id: <20230608-upstream-net-next-20230608-mptcp-unify-pm-interfaces-v1-3-b301717c9ff5@tessares.net> References: <20230608-upstream-net-next-20230608-mptcp-unify-pm-interfaces-v1-0-b301717c9ff5@tessares.net> In-Reply-To: <20230608-upstream-net-next-20230608-mptcp-unify-pm-interfaces-v1-0-b301717c9ff5@tessares.net> To: mptcp@lists.linux.dev, Mat Martineau , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Geliang Tang , Matthieu Baerts X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=4069; i=matthieu.baerts@tessares.net; h=from:subject:message-id; bh=5nDr9M7v5Mf80NDixMM7FPrdaFJMIldEDth/6RZgYhg=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBkgdXFgoTtiSJCP9CGOJ/S5Y8wlsdZcfEsuGk0z vqPlL1i0HOJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZIHVxQAKCRD2t4JPQmmg c+sWD/91DLbuH2odrwHtoGbvYHh6JKcUMBF4JZuuj8Kqa91+9NrVaGqdy0inki2k9/vpH46Rvqu O0kABJTas7MMPwIYvxVQoY2VBdwNnKh65ADv4UCzElb/jIph6yr0EEQrAOZ8FhnhiQyfP1pLglP lsGwBvPrIUJkLMsWt8aaYBHb3Sg+dXN4OehZGULDnl2KbE633yMRr8+hn9hsHf0S0Y5sjIfJLGF pokZUAhDySwtRC284Oq/ea5AXYmrmzT7Js0I+dIFk3nTbw7JwMP3aZ8UPeC2dbZL/+WxSbyFQXF aXkEUkorTeesliyUHgx13TaEO45kUWECEhxQndDiIN/eXE5OBxn0CeyRXt82OAcwQs/INUQksON PbGW1Hnbxnzj6bvVNG+jHKVBs70D/r4watCKjJYRVqeoC++ndJ4HrDJuPdP1HFnbuW3HKUpTYw5 tKYQarydPhmD2btUaqUQB/aXPyegTC0RGAklanVIB8NLbKuRdcfKYJm1bhV8dKGYaI6F/WvNxnK yH765OZy6x667VWlcWdOrWufpAl9aJKSmjIQOxP6PaJNvZYpTnjlZRhQ+Uta5odYgyIYE8xyQ+p HHHOdad02GNDw4Fy5hraX1YRnBat/kScnEw9dXLkrT2BZaBLCYxw1WvyjnnFmJHtgOugXCCoUjL kXa3DTfQ6B062Lw== X-Developer-Key: i=matthieu.baerts@tessares.net; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768141928956937259?= X-GMAIL-MSGID: =?utf-8?q?1768141928956937259?= From: Geliang Tang This patch unifies the three PM get_flags_and_ifindex_by_id() interfaces: mptcp_pm_nl_get_flags_and_ifindex_by_id() in mptcp/pm_netlink.c for the in-kernel PM and mptcp_userspace_pm_get_flags_and_ifindex_by_id() in mptcp/pm_userspace.c for the userspace PM. They'll be switched in the common PM infterface mptcp_pm_get_flags_and_ifindex_by_id() in mptcp/pm.c based on whether mptcp_pm_is_userspace() or not. Signed-off-by: Geliang Tang Reviewed-by: Matthieu Baerts Signed-off-by: Matthieu Baerts Reviewed-by: Larysa Zaremba --- net/mptcp/pm.c | 14 ++++++++++++++ net/mptcp/pm_netlink.c | 27 ++++++++------------------- net/mptcp/pm_userspace.c | 3 --- net/mptcp/protocol.h | 2 ++ 4 files changed, 24 insertions(+), 22 deletions(-) diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 5a027a46196c..2d04598dde05 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -419,6 +419,20 @@ int mptcp_pm_get_local_id(struct mptcp_sock *msk, struct sock_common *skc) return mptcp_pm_nl_get_local_id(msk, &skc_local); } +int mptcp_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, + u8 *flags, int *ifindex) +{ + *flags = 0; + *ifindex = 0; + + if (!id) + return 0; + + if (mptcp_pm_is_userspace(msk)) + return mptcp_userspace_pm_get_flags_and_ifindex_by_id(msk, id, flags, ifindex); + return mptcp_pm_nl_get_flags_and_ifindex_by_id(msk, id, flags, ifindex); +} + void mptcp_pm_subflow_chk_stale(const struct mptcp_sock *msk, struct sock *ssk) { struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index 315ad669eb3c..e8b32d369f11 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -1356,31 +1356,20 @@ static int mptcp_nl_cmd_add_addr(struct sk_buff *skb, struct genl_info *info) return ret; } -int mptcp_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, - u8 *flags, int *ifindex) +int mptcp_pm_nl_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, + u8 *flags, int *ifindex) { struct mptcp_pm_addr_entry *entry; struct sock *sk = (struct sock *)msk; struct net *net = sock_net(sk); - *flags = 0; - *ifindex = 0; - - if (id) { - if (mptcp_pm_is_userspace(msk)) - return mptcp_userspace_pm_get_flags_and_ifindex_by_id(msk, - id, - flags, - ifindex); - - rcu_read_lock(); - entry = __lookup_addr_by_id(pm_nl_get_pernet(net), id); - if (entry) { - *flags = entry->flags; - *ifindex = entry->ifindex; - } - rcu_read_unlock(); + rcu_read_lock(); + entry = __lookup_addr_by_id(pm_nl_get_pernet(net), id); + if (entry) { + *flags = entry->flags; + *ifindex = entry->ifindex; } + rcu_read_unlock(); return 0; } diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index 27a275805c06..e1df3a4a4f23 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -85,9 +85,6 @@ int mptcp_userspace_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, { struct mptcp_pm_addr_entry *entry, *match = NULL; - *flags = 0; - *ifindex = 0; - spin_lock_bh(&msk->pm.lock); list_for_each_entry(entry, &msk->pm.userspace_pm_local_addr_list, list) { if (id == entry->addr.id) { diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 8a2e01d10582..607cbd2ccb98 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -822,6 +822,8 @@ mptcp_lookup_anno_list_by_saddr(const struct mptcp_sock *msk, int mptcp_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, u8 *flags, int *ifindex); +int mptcp_pm_nl_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, + u8 *flags, int *ifindex); int mptcp_userspace_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, u8 *flags, int *ifindex);