From patchwork Mon Nov 30 22:59:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Petr Machata X-Patchwork-Id: 1408523 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=pmachata.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; secure) header.d=pmachata.org header.i=@pmachata.org header.a=rsa-sha256 header.s=MBO0001 header.b=yng7s34z; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4ClLPD6rkkz9sSf for ; Tue, 1 Dec 2020 10:03:12 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730902AbgK3XDM (ORCPT ); Mon, 30 Nov 2020 18:03:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730834AbgK3XDL (ORCPT ); Mon, 30 Nov 2020 18:03:11 -0500 Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [IPv6:2001:67c:2050::465:201]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99908C0617A7 for ; Mon, 30 Nov 2020 15:02:23 -0800 (PST) Received: from smtp1.mailbox.org (smtp1.mailbox.org [80.241.60.240]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-201.mailbox.org (Postfix) with ESMTPS id 4ClLMm2wSjzQlXb; Tue, 1 Dec 2020 00:01:56 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pmachata.org; s=MBO0001; t=1606777314; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JkQrbItmoOWRkjiKm/3CKnxyik/biurDVy6i24zBA+A=; b=yng7s34zq+GDxo975HD6rTbVTZnhsV43ufLpQ0kmP1ex68Rkmj10LknDWvf++ypiz61gzt XXzMf+QCZZM/CmJqJWfJii3jyBMXz6VAl4YGKZHHulMaJPVXiTtdL/KXYx8HWlDmFmfRXy S6V3Vc/maRRxRlvP/kfD9DWY9kcW5X22i3LyZnb1WA7gweCWJFlurxLU1YEAVnggH0Z7mZ nzN0YlWVD2LN+rxkTB/+ta1f72HdOdEPqTat0WShKfgHvIMxcWrYdOBUNIYRJ4H8fH86G/ QyiXo0TiRns+12zBKubuu9MoFd3x0q4wEmPEJwz8J3LR5YBaIdoef9YDMTmYiw== Received: from smtp1.mailbox.org ([80.241.60.240]) by spamfilter01.heinlein-hosting.de (spamfilter01.heinlein-hosting.de [80.241.56.115]) (amavisd-new, port 10030) with ESMTP id 9o69qkIDmNcu; Tue, 1 Dec 2020 00:01:52 +0100 (CET) From: Petr Machata To: netdev@vger.kernel.org, dsahern@gmail.com, stephen@networkplumber.org Cc: Po.Liu@nxp.com, toke@toke.dk, dave.taht@gmail.com, edumazet@google.com, tahiliani@nitk.edu.in, vtlam@google.com, leon@kernel.org, Petr Machata Subject: [PATCH iproute2-next 4/6] lib: Move get_rate(), get_rate64() from tc here Date: Mon, 30 Nov 2020 23:59:40 +0100 Message-Id: <423298ba47747a9b7153f329c991cb133a7d86ed.1606774951.git.me@pmachata.org> In-Reply-To: References: MIME-Version: 1.0 X-MBO-SPAM-Probability: * X-Rspamd-Score: 0.59 / 15.00 / 15.00 X-Rspamd-Queue-Id: ED1D61863 X-Rspamd-UID: 23be64 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The functions get_rate() and get_rate64() are useful for parsing rate-like values. The DCB tool will find these useful in the maxrate subtool. Move them over to lib so that they can be easily reused. Signed-off-by: Petr Machata --- include/utils.h | 2 ++ lib/utils.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++++ tc/tc_util.c | 79 ------------------------------------------------- tc/tc_util.h | 2 -- 4 files changed, 81 insertions(+), 81 deletions(-) diff --git a/include/utils.h b/include/utils.h index 01454f71cb1a..e2073844f2ef 100644 --- a/include/utils.h +++ b/include/utils.h @@ -162,6 +162,8 @@ int get_be64(__be64 *val, const char *arg, int base); int get_be32(__be32 *val, const char *arg, int base); int get_be16(__be16 *val, const char *arg, int base); int get_addr64(__u64 *ap, const char *cp); +int get_rate(unsigned int *rate, const char *str); +int get_rate64(__u64 *rate, const char *str); int hex2mem(const char *buf, uint8_t *mem, int count); char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen); diff --git a/lib/utils.c b/lib/utils.c index a0ba5181160e..1237ae40246c 100644 --- a/lib/utils.c +++ b/lib/utils.c @@ -513,6 +513,85 @@ int get_addr64(__u64 *ap, const char *cp) return 1; } +/* See http://physics.nist.gov/cuu/Units/binary.html */ +static const struct rate_suffix { + const char *name; + double scale; +} suffixes[] = { + { "bit", 1. }, + { "Kibit", 1024. }, + { "kbit", 1000. }, + { "mibit", 1024.*1024. }, + { "mbit", 1000000. }, + { "gibit", 1024.*1024.*1024. }, + { "gbit", 1000000000. }, + { "tibit", 1024.*1024.*1024.*1024. }, + { "tbit", 1000000000000. }, + { "Bps", 8. }, + { "KiBps", 8.*1024. }, + { "KBps", 8000. }, + { "MiBps", 8.*1024*1024. }, + { "MBps", 8000000. }, + { "GiBps", 8.*1024.*1024.*1024. }, + { "GBps", 8000000000. }, + { "TiBps", 8.*1024.*1024.*1024.*1024. }, + { "TBps", 8000000000000. }, + { NULL } +}; + +int get_rate(unsigned int *rate, const char *str) +{ + char *p; + double bps = strtod(str, &p); + const struct rate_suffix *s; + + if (p == str) + return -1; + + for (s = suffixes; s->name; ++s) { + if (strcasecmp(s->name, p) == 0) { + bps *= s->scale; + p += strlen(p); + break; + } + } + + if (*p) + return -1; /* unknown suffix */ + + bps /= 8; /* -> bytes per second */ + *rate = bps; + /* detect if an overflow happened */ + if (*rate != floor(bps)) + return -1; + return 0; +} + +int get_rate64(__u64 *rate, const char *str) +{ + char *p; + double bps = strtod(str, &p); + const struct rate_suffix *s; + + if (p == str) + return -1; + + for (s = suffixes; s->name; ++s) { + if (strcasecmp(s->name, p) == 0) { + bps *= s->scale; + p += strlen(p); + break; + } + } + + if (*p) + return -1; /* unknown suffix */ + + bps /= 8; /* -> bytes per second */ + *rate = bps; + return 0; +} + static void set_address_type(inet_prefix *addr) { switch (addr->family) { diff --git a/tc/tc_util.c b/tc/tc_util.c index ff979c617b9b..3a133ad84ff9 100644 --- a/tc/tc_util.c +++ b/tc/tc_util.c @@ -164,32 +164,6 @@ char *sprint_tc_classid(__u32 h, char *buf) return buf; } -/* See http://physics.nist.gov/cuu/Units/binary.html */ -static const struct rate_suffix { - const char *name; - double scale; -} suffixes[] = { - { "bit", 1. }, - { "Kibit", 1024. }, - { "kbit", 1000. }, - { "mibit", 1024.*1024. }, - { "mbit", 1000000. }, - { "gibit", 1024.*1024.*1024. }, - { "gbit", 1000000000. }, - { "tibit", 1024.*1024.*1024.*1024. }, - { "tbit", 1000000000000. }, - { "Bps", 8. }, - { "KiBps", 8.*1024. }, - { "KBps", 8000. }, - { "MiBps", 8.*1024*1024. }, - { "MBps", 8000000. }, - { "GiBps", 8.*1024.*1024.*1024. }, - { "GBps", 8000000000. }, - { "TiBps", 8.*1024.*1024.*1024.*1024. }, - { "TBps", 8000000000000. }, - { NULL } -}; - /* Parse a percent e.g: '30%' * return: 0 = ok, -1 = error, 1 = out of range */ @@ -273,59 +247,6 @@ int get_percent_rate64(__u64 *rate, const char *str, const char *dev) return get_rate64(rate, r_str); } -int get_rate(unsigned int *rate, const char *str) -{ - char *p; - double bps = strtod(str, &p); - const struct rate_suffix *s; - - if (p == str) - return -1; - - for (s = suffixes; s->name; ++s) { - if (strcasecmp(s->name, p) == 0) { - bps *= s->scale; - p += strlen(p); - break; - } - } - - if (*p) - return -1; /* unknown suffix */ - - bps /= 8; /* -> bytes per second */ - *rate = bps; - /* detect if an overflow happened */ - if (*rate != floor(bps)) - return -1; - return 0; -} - -int get_rate64(__u64 *rate, const char *str) -{ - char *p; - double bps = strtod(str, &p); - const struct rate_suffix *s; - - if (p == str) - return -1; - - for (s = suffixes; s->name; ++s) { - if (strcasecmp(s->name, p) == 0) { - bps *= s->scale; - p += strlen(p); - break; - } - } - - if (*p) - return -1; /* unknown suffix */ - - bps /= 8; /* -> bytes per second */ - *rate = bps; - return 0; -} - void tc_print_rate(enum output_type t, const char *key, const char *fmt, unsigned long long rate) { diff --git a/tc/tc_util.h b/tc/tc_util.h index d3b38c69155d..675fb34269f6 100644 --- a/tc/tc_util.h +++ b/tc/tc_util.h @@ -76,9 +76,7 @@ struct qdisc_util *get_qdisc_kind(const char *str); struct filter_util *get_filter_kind(const char *str); int get_qdisc_handle(__u32 *h, const char *str); -int get_rate(unsigned int *rate, const char *str); int get_percent_rate(unsigned int *rate, const char *str, const char *dev); -int get_rate64(__u64 *rate, const char *str); int get_percent_rate64(__u64 *rate, const char *str, const char *dev); int get_size(unsigned int *size, const char *str); int get_size_and_cell(unsigned int *size, int *cell_log, char *str);