From patchwork Wed Dec 12 04:16:37 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joe Hershberger X-Patchwork-Id: 205361 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 0E34C2C0093 for ; Wed, 12 Dec 2012 15:18:12 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id D915B4A1CE; Wed, 12 Dec 2012 05:18:04 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zXFcNPreYUAm; Wed, 12 Dec 2012 05:18:04 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id D6E274A1C5; Wed, 12 Dec 2012 05:17:37 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id EAA414A145 for ; Wed, 12 Dec 2012 05:17:28 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RSWi0gPgLMaQ for ; Wed, 12 Dec 2012 05:17:27 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from spamkiller06.natinst.com (mailserver6.natinst.com [130.164.80.6]) by theia.denx.de (Postfix) with ESMTP id 154394A192 for ; Wed, 12 Dec 2012 05:17:22 +0100 (CET) Received: from mailserv58-us.natinst.com (nb-hsrp-1338.natinst.com [130.164.19.133]) by spamkiller06.natinst.com (8.14.5/8.14.5) with ESMTP id qBC4HHOB022841; Tue, 11 Dec 2012 22:17:17 -0600 Received: from linux-xvxi.natinst.com ([130.164.14.197]) by mailserv58-us.natinst.com (Lotus Domino Release 8.5.3FP2 HF169) with ESMTP id 2012121122171764-310435 ; Tue, 11 Dec 2012 22:17:17 -0600 From: Joe Hershberger To: u-boot@lists.denx.de Date: Tue, 11 Dec 2012 22:16:37 -0600 Message-Id: <1355285797-27051-21-git-send-email-joe.hershberger@ni.com> X-Mailer: git-send-email 1.7.11.5 In-Reply-To: <1355285797-27051-1-git-send-email-joe.hershberger@ni.com> References: <1354672367-23747-1-git-send-email-joe.hershberger@ni.com> <1355285797-27051-1-git-send-email-joe.hershberger@ni.com> X-MIMETrack: Itemize by SMTP Server on MailServ58-US/AUS/H/NIC(Release 8.5.3FP2 HF169|September 14, 2012) at 12/11/2012 10:17:17 PM, Serialize by Router on MailServ58-US/AUS/H/NIC(Release 8.5.3FP2 HF169|September 14, 2012) at 12/11/2012 10:17:17 PM, Serialize complete at 12/11/2012 10:17:17 PM X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.9.8327, 1.0.431, 0.0.0000 definitions=2012-12-12_01:2012-12-12, 2012-12-12, 1970-01-01 signatures=0 Cc: Tom Rini , Joe Hershberger , Gerlando Falauto Subject: [U-Boot] [PATCH v5 20/20] env: Handle write-once ethaddr and serial# generically X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de Use the variable access flags to implement the protection for ethaddr and serial# instead of hard-coding them. Signed-off-by: Joe Hershberger --- Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None common/env_flags.c | 19 ------------------- include/env_flags.h | 22 ++++++++++++++++++++++ tools/env/fw_env.c | 17 ----------------- 3 files changed, 22 insertions(+), 36 deletions(-) diff --git a/common/env_flags.c b/common/env_flags.c index 4caf12e..336cae4 100644 --- a/common/env_flags.c +++ b/common/env_flags.c @@ -503,25 +503,6 @@ int env_flags_validate(const ENTRY *item, const char *newval, enum env_op op, /* Default value for NULL to protect string-manipulating functions */ newval = newval ? : ""; -#ifndef CONFIG_ENV_OVERWRITE - /* - * Some variables like "ethaddr" and "serial#" can be set only once and - * cannot be deleted, unless CONFIG_ENV_OVERWRITE is defined. - */ - if (op != env_op_create && /* variable exists */ - (flag & H_FORCE) == 0) { /* and we are not forced */ - if (strcmp(name, "serial#") == 0 || - (strcmp(name, "ethaddr") == 0 -#if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR) - && strcmp(oldval, __stringify(CONFIG_ETHADDR)) != 0 -#endif /* CONFIG_OVERWRITE_ETHADDR_ONCE && CONFIG_ETHADDR */ - )) { - printf("Can't overwrite \"%s\"\n", name); - return 1; - } - } -#endif - /* validate the value to match the variable type */ if (op != env_op_delete) { enum env_flags_vartype type = (enum env_flags_vartype) diff --git a/include/env_flags.h b/include/env_flags.h index 0bdae07..d1aa144 100644 --- a/include/env_flags.h +++ b/include/env_flags.h @@ -53,7 +53,29 @@ enum env_flags_varaccess { #define CONFIG_ENV_FLAGS_LIST_STATIC "" #endif +#ifdef CONFIG_CMD_NET +#ifdef CONFIG_ENV_OVERWRITE +#define ETHADDR_FLAGS "ethaddr:ma," +#else +#ifdef CONFIG_OVERWRITE_ETHADDR_ONCE +#define ETHADDR_FLAGS "ethaddr:mc," +#else +#define ETHADDR_FLAGS "ethaddr:mo," +#endif +#endif +#else +#define ETHADDR_FLAGS "" +#endif + +#ifndef CONFIG_ENV_OVERWRITE +#define SERIAL_FLAGS "serial#:so," +#else +#define SERIAL_FLAGS "" +#endif + #define ENV_FLAGS_LIST_STATIC \ + ETHADDR_FLAGS \ + SERIAL_FLAGS \ CONFIG_ENV_FLAGS_LIST_STATIC #ifdef CONFIG_CMD_ENV_FLAGS diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c index a596a1b..90c7a5d 100644 --- a/tools/env/fw_env.c +++ b/tools/env/fw_env.c @@ -369,23 +369,6 @@ int fw_env_write(char *name, char *value) return 0; if (deleting || overwriting) { -#ifndef CONFIG_ENV_OVERWRITE - /* - * Ethernet Address and serial# can be set only once - */ - if ( - (strcmp(name, "serial#") == 0) || - ((strcmp(name, "ethaddr") == 0) -#if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR) - && (strcmp(oldval, __stringify(CONFIG_ETHADDR)) != 0) -#endif /* CONFIG_OVERWRITE_ETHADDR_ONCE && CONFIG_ETHADDR */ - ) ) { - fprintf (stderr, "Can't overwrite \"%s\"\n", name); - errno = EROFS; - return -1; - } -#endif /* CONFIG_ENV_OVERWRITE */ - if (*++nxt == '\0') { *env = '\0'; } else {