From patchwork Wed Jul 19 08:15:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Eckelmann X-Patchwork-Id: 2 Return-Path: X-Original-To: patchwork@open-mesh.org Delivered-To: patchwork@open-mesh.org Received: from diktynna.open-mesh.org (localhost [IPv6:::1]) by diktynna.open-mesh.org (Postfix) with ESMTP id 583D081FA6 for ; Wed, 19 Jul 2023 10:15:59 +0200 (CEST) ARC-Seal: i=2; cv=pass; a=rsa-sha256; d=open-mesh.org; s=20121; t=1689754559; b=26PYkhU7c00dGjJb/JsSI80+d8OFltSZtGwaBJqzWfnIpwWMwDhvy2xfL790h/2ghNd4H liuY+hZYyr/BihG2EsjJYJfAq2nhcAojosRYjULJ7c47FfFgoDBw7ANdx547eUgqX23gXgK qN6utlPUU1dNBsmjKYaHiviLpq31lNE= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=open-mesh.org; s=20121; t=1689754559; h=from : sender : reply-to : subject : date : message-id : to : cc : mime-version : content-type : content-transfer-encoding : content-id : content-description : resent-date : resent-from : resent-sender : resent-to : resent-cc : resent-message-id : in-reply-to : references : list-id : list-help : list-unsubscribe : list-subscribe : list-post : list-owner : list-archive; 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bh=c6j1+KqOI0fNe1l53utEwgQ+1M9BdfKVpW+q98tlznE=; b=caGTLGoYsGkwqGKQHnfmVzLQYuUGSlsVUAfbm5Bmr/04SLRg5IiTENmgDq9rlldIcxHpgj yniSpqooQVc1h5R0L/Ja8Bj5CePx4Ukhi9BCrVSpgLgLXKGVjAnkoiTV58ki+goHTLMfHX jZm+ULsvT/Jm5dMhW5xGrUqQmUqpeEg= From: Sven Eckelmann Subject: [PATCH 0/2] batman-adv: Fix MTU handling Date: Wed, 19 Jul 2023 10:15:04 +0200 Message-Id: <20230719-mtu-v1-0-48fd024f0f56@narfation.org> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAIibt2QC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDI2MDc0NL3dySUt1U07Q0c8Nks5QUc3MloMqCotS0zAqwKdGxtbUA+kTsCFU AAAA= To: b.a.t.m.a.n@lists.open-mesh.org X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=896; i=sven@narfation.org; h=from:subject:message-id; bh=1lIFEbxYOo0ohXTefqBXAVCzErDAosZgsbqaIKMLl1I=; b=owEBbQKS/ZANAwAKAV2HCgfBJntGAcsmYgBkt5ueVWpg6iCNYNySvV8GZNo6p06NuW2TkI4iD LWpqEgueGKJAjMEAAEKAB0WIQQXXSuHYSVz3OMy4AJdhwoHwSZ7RgUCZLebngAKCRBdhwoHwSZ7 RpWUEADS9uLAuBDZRvlX/lzUuteb338SyO7t2E9BQYIBeMdmJyi5OONHozRTaP5bBSdU5TVmgdO eC1JEh7puqudfGGIi1lDdrzy9KF/2i2/krQ0M2NZZlMHUEsU0ZBl6OQuJSHR6MXUa6kEV6onEQz 57OJP//Tli93GTUiaDoVAQz+UsIJMenqlrkYXcoBfpE4x2dkR7CPH3Mm1QTKr+ph/QY1B5KcRhq PsMHHfsrVJbNc+q4fjcBN1fHLRPKVltyUk3pzfcPZQQNuT4IWpGq6qqFFwbnaL5IRWfbbBu1xpj gwWER55599XXzGx4K27jHmXECgxGWLBx0ZCjrWKHyXXM/Qfd9ZyHE4Jjt0jy6w1mDqBBaBn+iqC nIFID8wb1RyLdI2DwFuaYz5ShBDe5bixxYoLO1b3N9VDWYIhD7TWB2uas/vLVP+Smeowpl4dh2j jZVKt0jOk8KFTFaEUDgC6HZ3gq68auzqe7vP861Sw3kd6tFsZdRDq3KsfkPC6XrDJ4KgYBPkQZU MQY9b8C/aQS/vfFLWEMgbLkkHb/GK+oDtcgncxiJJmxIOVdlYgQKBOIvxs5YwpYk3GN4fYkmSBF Ps/dYnIHbm3PfIzplS9H9HO+7hCAHT0A4Iddz54IN91Ob+pfjFEKwfHw0O3TlmVJet5x0wB846h 9W9oAxENxjhBEDQ== X-Developer-Key: i=sven@narfation.org; a=openpgp; fpr=522D7163831C73A635D12FE5EC371482956781AF Message-ID-Hash: BM7TXKMO62S4NMABQTBFTW7N622B6ZIN X-Message-ID-Hash: BM7TXKMO62S4NMABQTBFTW7N622B6ZIN X-MailFrom: sven@narfation.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-b.a.t.m.a.n.lists.open-mesh.org-0; header-match-b.a.t.m.a.n.lists.open-mesh.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: The list for a Better Approach To Mobile Ad-hoc Networking Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: It was noticed (while proposing a starting point/patch for https://www.open-mesh.org/issues/365 ) that the auto-adjusting MTU handling in batman-adv looks rather odd. * events for pre-MTU change and (post) MTU change were not triggered for an auto-adjust * user set (lower) MTUs were always overwritten when a hard-interface became active Signed-off-by: Sven Eckelmann --- Sven Eckelmann (2): batman-adv: Trigger events for auto adjusted MTU batman-adv: Don't increase MTU when set by user net/batman-adv/hard-interface.c | 14 +++++++++++++- net/batman-adv/soft-interface.c | 3 +++ net/batman-adv/types.h | 6 ++++++ 3 files changed, 22 insertions(+), 1 deletion(-) --- base-commit: 8924adbdf993cd0521f9d0024b43e3b23af5114f change-id: 20230719-mtu-e5ff71c6dd77 Best regards,