From patchwork Thu Oct 3 23:29:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronnie Sahlberg X-Patchwork-Id: 11173521 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4E3A8139A for ; Thu, 3 Oct 2019 23:29:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 35C922086A for ; Thu, 3 Oct 2019 23:29:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729589AbfJCX3Y (ORCPT ); Thu, 3 Oct 2019 19:29:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59340 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727452AbfJCX3Y (ORCPT ); Thu, 3 Oct 2019 19:29:24 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 461DD308FE8F; Thu, 3 Oct 2019 23:29:24 +0000 (UTC) Received: from test1135.test.redhat.com (vpn2-54-57.bne.redhat.com [10.64.54.57]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9C3FA600C4; Thu, 3 Oct 2019 23:29:23 +0000 (UTC) From: Ronnie Sahlberg To: linux-cifs Cc: Pavel Shilovsky , Ronnie Sahlberg Subject: [PATCH] smbinfo: Add SETCOMPRESSION support Date: Fri, 4 Oct 2019 09:29:02 +1000 Message-Id: <20191003232902.16332-1-lsahlber@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Thu, 03 Oct 2019 23:29:24 +0000 (UTC) Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Signed-off-by: Ronnie Sahlberg Signed-off-by: Ronnie Sahlberg --- smbinfo.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++- smbinfo.rst | 2 ++ 2 files changed, 49 insertions(+), 1 deletion(-) diff --git a/smbinfo.c b/smbinfo.c index b4d497b..049a4f2 100644 --- a/smbinfo.c +++ b/smbinfo.c @@ -91,6 +91,8 @@ usage(char *name) " Prints the objectid of the file and GUID of the underlying volume.\n" " getcompression:\n" " Prints the compression setting for the file.\n" + " setcompression :\n" + " Sets the compression level for the file.\n" " list-snapshots:\n" " List the previous versions of the volume that backs this file.\n" " quota:\n" @@ -299,6 +301,30 @@ getcompression(int f) } static void +setcompression(int f, uint16_t level) +{ + struct smb_query_info *qi; + + qi = malloc(sizeof(struct smb_query_info) + 2); + memset(qi, 0, sizeof(qi) + 2); + qi->info_type = 0x9c040; + qi->file_info_class = 0; + qi->additional_information = 0; + qi->output_buffer_length = 2; + qi->flags = PASSTHRU_FSCTL; + + level = htole16(level); + memcpy(&qi[1], &level, 2); + + if (ioctl(f, CIFS_QUERY_INFO, qi) < 0) { + fprintf(stderr, "ioctl failed with %s\n", strerror(errno)); + exit(1); + } + + free(qi); +} + +static void print_fileaccessinfo(uint8_t *sd, int type) { uint32_t access_flags; @@ -1126,17 +1152,35 @@ list_snapshots(int f) free(buf); } +static int +parse_compression(const char *arg) +{ + if (!strcmp(arg, "no")) + return 0; + else if (!strcmp(arg, "default")) + return 1; + else if (!strcmp(arg, "lznt1")) + return 2; + + fprintf(stderr, "compression must be no|default|lznt1\n"); + exit(10); +} + int main(int argc, char *argv[]) { int c; int f; + int compression = 1; if (argc < 2) { short_usage(argv[0]); } - while ((c = getopt_long(argc, argv, "vVh", NULL, NULL)) != -1) { + while ((c = getopt_long(argc, argv, "c:vVh", NULL, NULL)) != -1) { switch (c) { + case 'c': + compression = parse_compression(optarg); + break; case 'v': printf("smbinfo version %s\n", VERSION); return 0; @@ -1183,6 +1227,8 @@ int main(int argc, char *argv[]) fsctlgetobjid(f); else if (!strcmp(argv[optind], "getcompression")) getcompression(f); + else if (!strcmp(argv[optind], "setcompression")) + setcompression(f, compression); else if (!strcmp(argv[optind], "list-snapshots")) list_snapshots(f); else if (!strcmp(argv[optind], "quota")) diff --git a/smbinfo.rst b/smbinfo.rst index 500ce0e..c8f76e6 100644 --- a/smbinfo.rst +++ b/smbinfo.rst @@ -69,6 +69,8 @@ COMMAND `getcompression`: Prints the compression setting for the file. +`setcompression -c `: Sets the compression setting for the file. + `list-snapshots`: Lists the previous versions of the volume that backs this file `quota`: Print the quota for the volume in the form