From patchwork Wed Apr 16 02:10:19 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: steven chen X-Patchwork-Id: 14053058 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B6CDF2135C2; Wed, 16 Apr 2025 02:10:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744769450; cv=none; b=JfxDvijetXnByb/N8+r/r35i9hbPrZkSxHieLMVdBHCP8q6q2sJitBTN+M5NtlegciYEQ6amk3XnUqwW09aju2jMgUHinqAT1/bG7F+YLkyXQu6vcRxqopdyVUf6imGPdF+9m4Ndbimiq6IocPUYWXwL8iNcVyJNHGM8Tz05l/I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744769450; c=relaxed/simple; bh=dEt1VSouaCqpLashEgbYhccKfSJ8kzYt7vq1jRG46fY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mp4WS4Q6UJvTmVmeW5USpuqE7/7JBGmC9vYkDcTOwPHxOrkQILC3lFCF2hNjx5nIBEbT1kvOv8L7Mca7OlcE3ahPi7V0MQkWhy4xk/zk4Xrzp6/nwgf3DuO3gjMXpxay0OcDXBph6sKm9cE3mMsPl79DjbX7O7LLaq2fTaxQk5s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=RkyqvziE; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="RkyqvziE" Received: from DESKTOP-VOT081N.hsd1.ga.comcast.net (unknown [172.200.70.13]) by linux.microsoft.com (Postfix) with ESMTPSA id 1B3CA210C454; Tue, 15 Apr 2025 19:10:45 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 1B3CA210C454 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1744769448; bh=flsMrss1yoTJHwM9wwpPcJX7vLScB/dAHKxDi6rBq0k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RkyqvziEE+N/AvhH8MOnfTuSCKMtulhuFs0VN6q/IxUVrDSaBRJvQ5zeCBMwPHxFh 2i7HFOyEuZ1kplNK3DU+T1dHp8zBlb/VD+LA3XNQYnphpOCnkIcOkWESDjWljEbd1C 4ses7ffbNaCmFNLVxw16OzjytdY4zjQM5ktnNgKo= From: steven chen To: zohar@linux.ibm.com, stefanb@linux.ibm.com, roberto.sassu@huaweicloud.com, roberto.sassu@huawei.com, eric.snowberg@oracle.com, ebiederm@xmission.com, paul@paul-moore.com, code@tyhicks.com, bauermann@kolabnow.com, linux-integrity@vger.kernel.org, kexec@lists.infradead.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org Cc: madvenka@linux.microsoft.com, nramas@linux.microsoft.com, James.Bottomley@HansenPartnership.com, bhe@redhat.com, vgoyal@redhat.com, dyoung@redhat.com Subject: [PATCH v12 1/9] ima: rename variable the seq_file "file" to "ima_kexec_file" Date: Tue, 15 Apr 2025 19:10:19 -0700 Message-ID: <20250416021028.1403-2-chenste@linux.microsoft.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250416021028.1403-1-chenste@linux.microsoft.com> References: <20250416021028.1403-1-chenste@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Steven Chen Before making the function local seq_file "file" variable file static global, rename it to "ima_kexec_file". Signed-off-by: Steven Chen --- security/integrity/ima/ima_kexec.c | 31 +++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/security/integrity/ima/ima_kexec.c b/security/integrity/ima/ima_kexec.c index 9d45f4d26f73..650beb74346c 100644 --- a/security/integrity/ima/ima_kexec.c +++ b/security/integrity/ima/ima_kexec.c @@ -18,30 +18,30 @@ static int ima_dump_measurement_list(unsigned long *buffer_size, void **buffer, unsigned long segment_size) { + struct seq_file ima_kexec_file; struct ima_queue_entry *qe; - struct seq_file file; struct ima_kexec_hdr khdr; int ret = 0; /* segment size can't change between kexec load and execute */ - file.buf = vmalloc(segment_size); - if (!file.buf) { + ima_kexec_file.buf = vmalloc(segment_size); + if (!ima_kexec_file.buf) { ret = -ENOMEM; goto out; } - file.file = NULL; - file.size = segment_size; - file.read_pos = 0; - file.count = sizeof(khdr); /* reserved space */ + ima_kexec_file.file = NULL; + ima_kexec_file.size = segment_size; + ima_kexec_file.read_pos = 0; + ima_kexec_file.count = sizeof(khdr); /* reserved space */ memset(&khdr, 0, sizeof(khdr)); khdr.version = 1; /* This is an append-only list, no need to hold the RCU read lock */ list_for_each_entry_rcu(qe, &ima_measurements, later, true) { - if (file.count < file.size) { + if (ima_kexec_file.count < ima_kexec_file.size) { khdr.count++; - ima_measurements_show(&file, qe); + ima_measurements_show(&ima_kexec_file, qe); } else { ret = -EINVAL; break; @@ -55,23 +55,24 @@ static int ima_dump_measurement_list(unsigned long *buffer_size, void **buffer, * fill in reserved space with some buffer details * (eg. version, buffer size, number of measurements) */ - khdr.buffer_size = file.count; + khdr.buffer_size = ima_kexec_file.count; if (ima_canonical_fmt) { khdr.version = cpu_to_le16(khdr.version); khdr.count = cpu_to_le64(khdr.count); khdr.buffer_size = cpu_to_le64(khdr.buffer_size); } - memcpy(file.buf, &khdr, sizeof(khdr)); + memcpy(ima_kexec_file.buf, &khdr, sizeof(khdr)); print_hex_dump_debug("ima dump: ", DUMP_PREFIX_NONE, 16, 1, - file.buf, file.count < 100 ? file.count : 100, + ima_kexec_file.buf, ima_kexec_file.count < 100 ? + ima_kexec_file.count : 100, true); - *buffer_size = file.count; - *buffer = file.buf; + *buffer_size = ima_kexec_file.count; + *buffer = ima_kexec_file.buf; out: if (ret == -EINVAL) - vfree(file.buf); + vfree(ima_kexec_file.buf); return ret; }