From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 26 Nov 2024 16:18:24 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tFxKZ-000fPY-1f for lore@lore.pengutronix.de; Tue, 26 Nov 2024 16:18:24 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tFxKZ-0004OJ-Eq for lore@pengutronix.de; Tue, 26 Nov 2024 16:18:23 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=zctIlTdFaB0hPZOpLkJQhlrMg7RYfTS4VI7anWH4udI=; b=rA73UgGwR2DNiU7Lp8Na2UDmZH 3b1ikN5ZWwQSpu+eyLKzmo82pN+HJmnbNnCMoeM86kEjrollrA5Nee07yRTnJxM7j/Iy3oCmgjjkG JVOQcl2Hhrl4hJ4Z6wKtYfb2z39OT/TSQVUlojz9sG0C+uuN7HB//kKff5O+b/ZIs/kxUpD4/Cq0Y 3SjxIFwi1kFNGPvD2SST/7d7f9Bqrh+174lpHOhgE2iy4CS4erbCDAimPEOHyYYEIcDlasd3X1xnp 9Zbk/Q0HjYlqFMWI9qAWoPKFrwpx8e5BGPJkNgdFQDtXUSwMmnZquYXNczCiMLhDHLqrnsSWYpWhq CeXGAnGg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFxKC-0000000Aya1-1QV4; Tue, 26 Nov 2024 15:18:00 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tFxK6-0000000AyW7-3zv3 for barebox@lists.infradead.org; Tue, 26 Nov 2024 15:17:55 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tFxJx-0003vE-JZ; Tue, 26 Nov 2024 16:17:45 +0100 Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tFxJw-000Gru-22; Tue, 26 Nov 2024 16:17:45 +0100 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1tFxJw-00FD3f-2G; Tue, 26 Nov 2024 16:17:45 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Tue, 26 Nov 2024 16:17:44 +0100 Message-Id: <20241126151744.3621717-5-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241126151744.3621717-1-a.fatoum@pengutronix.de> References: <20241126151744.3621717-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241126_071754_987208_9EAD494F X-CRM114-Status: UNSURE ( 9.56 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 4/4] net: implement ethaddr_string_cmp() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) We keep ethernet addresses either in binary or in text form at a couple of places, e.g. device tree, device parameters, struct net_device, ... etc. We have memcmp() and strcmp() respectively to compare each, add one more function to compare a text string with binary. This will be used in a follow up commit. Signed-off-by: Ahmad Fatoum --- include/net.h | 2 ++ net/lib.c | 17 +++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/include/net.h b/include/net.h index d9b7953a3c33..dbc45b806a51 100644 --- a/include/net.h +++ b/include/net.h @@ -366,6 +366,8 @@ IPaddr_t getenv_ip(const char *name); int setenv_ip(const char *name, IPaddr_t ip); int string_to_ethaddr(const char *str, u8 enetaddr[6]); +void ethaddr_to_string(const u8 enetaddr[6], char *str); +int ethaddr_string_cmp(const u8 enetaddr_a[6], const char *str_b); #ifdef CONFIG_NET_RESOLV int resolv(const char *host, IPaddr_t *ip); diff --git a/net/lib.c b/net/lib.c index dc6e138f392c..59bd4c280caf 100644 --- a/net/lib.c +++ b/net/lib.c @@ -37,6 +37,23 @@ int string_to_ethaddr(const char *str, u8 enetaddr[ETH_ALEN]) return 0; } +void ethaddr_to_string(const u8 enetaddr[ETH_ALEN], char *str) +{ + sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", + enetaddr[0], enetaddr[1], enetaddr[2], enetaddr[3], + enetaddr[4], enetaddr[5]); +} + +int ethaddr_string_cmp(const u8 enetaddr_a[ETH_ALEN], const char *str_b) +{ + u8 enetaddr_b[ETH_ALEN]; + + if (string_to_ethaddr(str_b, enetaddr_b)) + return -EINVAL; + + return memcmp(enetaddr_a, enetaddr_b, ETH_ALEN); +} + int string_to_ip(const char *s, IPaddr_t *ip) { IPaddr_t addr = 0; -- 2.39.5