From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: passt.top; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: passt.top; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=b8N8DfA1; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by passt.top (Postfix) with ESMTPS id A48D65A0272 for ; Thu, 01 Oct 2026 15:16:14 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1790860573; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wcyox7KaVCwvU3lryVf9PgIEDws0zgPt/Um25Dgsll4=; b=b8N8DfA1oQeFYfnH9YmeLmoMSeHaqNIIEtoeTwHtorg/poSb+gpX6xfnCAHPN2WJmzMyKe DwdJaYREzxPjMrtc6eWK01ybkvGhuD7VGCu6TH0ZyHmpHdpyJd7+QVXAGQ25koSt2e9bcv dUW8PeqoWDg4aJu4LQmSr/4JcyAg3B0= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-225-NT8yEM_tMYShP6lAxkjNxg-1; Thu, 01 Oct 2026 09:16:11 -0400 X-MC-Unique: NT8yEM_tMYShP6lAxkjNxg-1 X-Mimecast-MFC-AGG-ID: NT8yEM_tMYShP6lAxkjNxg_1790860571 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 013E4180AD59 for ; Thu, 1 Oct 2026 13:16:11 +0000 (UTC) Received: from anskuma-thinkpadp1gen7.bengluru.csb (unknown [10.74.80.122]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id E462618005B3; Thu, 1 Oct 2026 13:16:08 +0000 (UTC) From: Anshu Kumari To: sbrivio@redhat.com, passt-dev@passt.top Subject: [PATCH v7 1/7] dhcp: Refactor fill_one() to operate on a generic buffer Date: Thu, 1 Oct 2026 18:45:54 +0530 Message-ID: <20261001131602.653553-2-anskuma@redhat.com> In-Reply-To: <20261001131602.653553-1-anskuma@redhat.com> References: <20261001131602.653553-1-anskuma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: bdA_XaGt6tr9Dg2jqZTn3t8xDvl4ssibzy_yCbgeFsI_1790860571 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Message-ID-Hash: IZBN26UUOVANAUQ6KXBRXY4SDDNIVVPZ X-Message-ID-Hash: IZBN26UUOVANAUQ6KXBRXY4SDDNIVVPZ X-MailFrom: anskuma@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: lvivier@redhat.com, anskuma@redhat.com X-Mailman-Version: 3.3.8 Precedence: list List-Id: Development discussion and patches for passt Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Q2hhbmdlIGZpbGxfb25lKCkgdG8gYWNjZXB0IGEgYnVmZmVyIHBvaW50ZXIgYW5kIGNhcGFjaXR5 IGluc3RlYWQgb2YNCmEgc3RydWN0IG1zZyBwb2ludGVyLiAgVGhpcyBpcyBhIHB1cmUgcmVmYWN0 b3Igd2l0aCBubyBiZWhhdmlvciBjaGFuZ2UsDQpwcmVwYXJpbmcgZm9yIG9wdGlvbiBvdmVybG9h ZCBzdXBwb3J0IHdoZXJlIGZpbGxfb25lKCkgd2lsbCBhbHNvIHdyaXRlDQppbnRvIHRoZSBmaWxl IGFuZCBzbmFtZSBmaWVsZHMuDQoNCkxpbms6IGh0dHBzOi8vYnVncy5wYXNzdC50b3Avc2hvd19i dWcuY2dpP2lkPTE5Mg0KU2lnbmVkLW9mZi1ieTogQW5zaHUgS3VtYXJpIDxhbnNrdW1hQHJlZGhh dC5jb20+DQotLS0NCnY3Og0KICAtIG5vIGNoYW5nZXMuDQoNCnY2Og0KICAtIG5vIGNoYW5nZXMu DQoNCnY1Og0KICAtIFJlc3RvcmUgZGVidWcgbWVzc2FnZXMgZm9yIHNraXBwZWQgb3B0aW9ucyBp biBmaWxsKCkNCiAgLSBBZGQgLyogY29kZSBhbmQgbGVuZ3RoIG9mIG9wdGlvbiAqLyBjb21tZW50 IGluIHNpemUgY2hlY2sNCiAgLSBVc2UgYnVmICsgKm9mZnNldCBpbnN0ZWFkIG9mICZidWZbKm9m ZnNldF0gZm9yIG1lbWNweQ0KDQp2MzoNCiAgLSBSZXN0b3JlZCByZW1vdmVkIGNvbW1lbnRzOiAi SWYgd2UgZG9uJ3QgaGF2ZSBzcGFjZSB0byB3cml0ZSB0aGUNCiAgICBvcHRpb24sIHRoZW4ganVz dCBza2lwIiBhbmQgIk1vdmUgdG8gb3B0aW9uIi4NCg0KdjI6DQogIC0gUmVuYW1lZCBwYXJhbWV0 ZXIgY2FwIOKGkiBzaXplLg0KLS0tDQogZGhjcC5jIHwgMjcgKysrKysrKysrKysrKystLS0tLS0t LS0tLS0tDQogMSBmaWxlIGNoYW5nZWQsIDE0IGluc2VydGlvbnMoKyksIDEzIGRlbGV0aW9ucygt KQ0KDQpkaWZmIC0tZ2l0IGEvZGhjcC5jIGIvZGhjcC5jDQppbmRleCBjM2M3NDIyNC4uYmI3MmI3 MjQgMTAwNjQ0DQotLS0gYS9kaGNwLmMNCisrKyBiL2RoY3AuYw0KQEAgLTEzMSwyOCArMTMxLDI5 IEBAIHN0cnVjdCBtc2cgew0KIH0gX19hdHRyaWJ1dGVfXygoX19wYWNrZWRfXykpOw0KIA0KIC8q Kg0KLSAqIGZpbGxfb25lKCkgLSBGaWxsIGEgc2luZ2xlIG9wdGlvbiBpbiBtZXNzYWdlDQotICog QG06CQlNZXNzYWdlIHRvIGZpbGwNCisgKiBmaWxsX29uZSgpIC0gRmlsbCBhIHNpbmdsZSBvcHRp b24gaW50byBhIGJ1ZmZlcg0KKyAqIEBidWY6CUJ1ZmZlciB0byB3cml0ZSBvcHRpb24NCisgKiBA c2l6ZToJVXNhYmxlIHNpemUgb2YgQGJ1ZiAoZXhjbHVkaW5nIGVuZCBtYXJrZXIpDQogICogQG86 CQlPcHRpb24gbnVtYmVyDQotICogQG9mZnNldDoJQ3VycmVudCBvZmZzZXQgd2l0aGluIG9wdGlv bnMgZmllbGQsIHVwZGF0ZWQgb24gaW5zZXJ0aW9uDQorICogQG9mZnNldDoJQ3VycmVudCBvZmZz ZXQgd2l0aGluIEBidWYsIHVwZGF0ZWQgb24gaW5zZXJ0aW9uDQogICoNCi0gKiBSZXR1cm46IGZh bHNlIGlmIG0gaGFzIHNwYWNlIHRvIHdyaXRlIHRoZSBvcHRpb24sIHRydWUgb3RoZXJ3aXNlDQor ICogUmV0dXJuOiBmYWxzZSBpZiBAYnVmIGhhcyBzcGFjZSB0byB3cml0ZSB0aGUgb3B0aW9uLCB0 cnVlIG90aGVyd2lzZQ0KICAqLw0KLXN0YXRpYyBib29sIGZpbGxfb25lKHN0cnVjdCBtc2cgKm0s IGludCBvLCBpbnQgKm9mZnNldCkNCitzdGF0aWMgYm9vbCBmaWxsX29uZSh1aW50OF90ICpidWYs IHNpemVfdCBzaXplLCBpbnQgbywgaW50ICpvZmZzZXQpDQogew0KIAlzaXplX3Qgc2xlbiA9IG9w dHNbb10uc2xlbjsNCiANCiAJLyogSWYgd2UgZG9uJ3QgaGF2ZSBzcGFjZSB0byB3cml0ZSB0aGUg b3B0aW9uLCB0aGVuIGp1c3Qgc2tpcCAqLw0KLQlpZiAoKm9mZnNldCArIDIgLyogY29kZSBhbmQg bGVuZ3RoIG9mIG9wdGlvbiAqLyArIHNsZW4gPiBPUFRfTUFYKQ0KKwlpZiAoKm9mZnNldCArIDIg LyogY29kZSBhbmQgbGVuZ3RoIG9mIG9wdGlvbiAqLyArIHNsZW4gPiBzaXplKQ0KIAkJcmV0dXJu IHRydWU7DQogDQotCW0tPm9bKm9mZnNldF0gPSBvOw0KLQltLT5vWypvZmZzZXQgKyAxXSA9IHNs ZW47DQorCWJ1Zlsqb2Zmc2V0XSA9IG87DQorCWJ1Zlsqb2Zmc2V0ICsgMV0gPSBzbGVuOw0KIA0K IAkvKiBNb3ZlIHRvIG9wdGlvbiAqLw0KIAkqb2Zmc2V0ICs9IDI7DQogDQotCW1lbWNweSgmbS0+ b1sqb2Zmc2V0XSwgb3B0c1tvXS5zLCBzbGVuKTsNCisJbWVtY3B5KGJ1ZiArICpvZmZzZXQsIG9w dHNbb10ucywgc2xlbik7DQogDQogCW9wdHNbb10uc2VudCA9IDE7DQogCSpvZmZzZXQgKz0gc2xl bjsNCkBAIC0xNzcsMTkgKzE3OCwxOSBAQCBzdGF0aWMgaW50IGZpbGwoc3RydWN0IG1zZyAqbSkN CiAJICogUHV0IGl0IHRoZXJlIGV4cGxpY2l0bHksIHVubGVzcyByZXF1ZXN0ZWQgdmlhIG9wdGlv biA1NS4NCiAJICovDQogCWlmIChvcHRzWzU1XS5jbGVuID4gMCAmJiAhbWVtY2hyKG9wdHNbNTVd LmMsIDUzLCBvcHRzWzU1XS5jbGVuKSkNCi0JCWlmIChmaWxsX29uZShtLCA1MywgJm9mZnNldCkp DQotCQkJIGRlYnVnKCJESENQOiBza2lwcGluZyBvcHRpb24gNTMiKTsNCisJCWlmIChmaWxsX29u ZShtLT5vLCBPUFRfTUFYLCA1MywgJm9mZnNldCkpDQorCQkJZGVidWcoIkRIQ1A6IHNraXBwaW5n IG9wdGlvbiA1MyIpOw0KIA0KIAlmb3IgKGkgPSAwOyBpIDwgb3B0c1s1NV0uY2xlbjsgaSsrKSB7 DQogCQlvID0gb3B0c1s1NV0uY1tpXTsNCiAJCWlmIChvcHRzW29dLnNsZW4gIT0gLTEpDQotCQkJ aWYgKGZpbGxfb25lKG0sIG8sICZvZmZzZXQpKQ0KKwkJCWlmIChmaWxsX29uZShtLT5vLCBPUFRf TUFYLCBvLCAmb2Zmc2V0KSkNCiAJCQkJZGVidWcoIkRIQ1A6IHNraXBwaW5nIG9wdGlvbiAlaSIs IG8pOw0KIAl9DQogDQogCWZvciAobyA9IDA7IG8gPCAyNTU7IG8rKykgew0KIAkJaWYgKG9wdHNb b10uc2xlbiAhPSAtMSAmJiAhb3B0c1tvXS5zZW50KQ0KLQkJCWlmIChmaWxsX29uZShtLCBvLCAm b2Zmc2V0KSkNCisJCQlpZiAoZmlsbF9vbmUobS0+bywgT1BUX01BWCwgbywgJm9mZnNldCkpDQog CQkJCWRlYnVnKCJESENQOiBza2lwcGluZyBvcHRpb24gJWkiLCBvKTsNCiAJfQ0KIA0KLS0gDQoy LjU1LjANCg0K