From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 1B1F443922; Mon, 22 Jan 2024 05:02:07 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id BBA7540A77; Mon, 22 Jan 2024 05:01:56 +0100 (CET) Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by mails.dpdk.org (Postfix) with ESMTP id 8009F40633 for ; Mon, 22 Jan 2024 05:01:51 +0100 (CET) Received: from mail.maildlp.com (unknown [172.19.88.105]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4TJGjF4VwQz1Q88n; Mon, 22 Jan 2024 12:00:49 +0800 (CST) Received: from dggpeml500024.china.huawei.com (unknown [7.185.36.10]) by mail.maildlp.com (Postfix) with ESMTPS id 575C91402E2; Mon, 22 Jan 2024 12:01:49 +0800 (CST) Received: from localhost.localdomain (10.50.165.33) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Mon, 22 Jan 2024 12:01:49 +0800 From: Chengwen Feng To: , , , CC: Subject: [PATCH 03/12] argparse: support verify argument config Date: Mon, 22 Jan 2024 03:57:53 +0000 Message-ID: <20240122035802.31491-4-fengchengwen@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240122035802.31491-1-fengchengwen@huawei.com> References: <20231121122651.7078-1-fengchengwen@huawei.com> <20240122035802.31491-1-fengchengwen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.50.165.33] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpeml500024.china.huawei.com (7.185.36.10) X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This commit supports verify argument config. Signed-off-by: Chengwen Feng --- lib/argparse/rte_argparse.c | 307 +++++++++++++++++++++++++++++++++++- 1 file changed, 306 insertions(+), 1 deletion(-) diff --git a/lib/argparse/rte_argparse.c b/lib/argparse/rte_argparse.c index 3471c5e757..3dbae8868b 100644 --- a/lib/argparse/rte_argparse.c +++ b/lib/argparse/rte_argparse.c @@ -2,13 +2,318 @@ * Copyright(c) 2024 HiSilicon Limited */ +#include +#include +#include + +#include + #include "rte_argparse.h" +RTE_LOG_REGISTER_DEFAULT(rte_argparse_logtype, INFO); +#define ARGPARSE_LOG(level, ...) \ + rte_log(RTE_LOG_ ## level, rte_argparse_logtype, RTE_FMT("argparse: " \ + RTE_FMT_HEAD(__VA_ARGS__,) "\n", RTE_FMT_TAIL(__VA_ARGS__,))) + +#define ARG_ATTR_HAS_VAL_MASK RTE_GENMASK64(1, 0) +#define ARG_ATTR_VAL_TYPE_MASK RTE_GENMASK64(9, 2) +#define ARG_ATTR_SUPPORT_MULTI_MASK RTE_BIT64(10) +#define ARG_ATTR_FLAG_PARSED_MASK RTE_BIT64(63) + +static inline bool +is_arg_optional(const struct rte_argparse_arg *arg) +{ + return arg->name_long[0] == '-'; +} + +static inline bool +is_arg_positional(const struct rte_argparse_arg *arg) +{ + return arg->name_long[0] != '-'; +} + +static inline uint32_t +arg_attr_has_val(const struct rte_argparse_arg *arg) +{ + return RTE_FIELD_GET64(ARG_ATTR_HAS_VAL_MASK, arg->flags); +} + +static inline uint32_t +arg_attr_val_type(const struct rte_argparse_arg *arg) +{ + return RTE_FIELD_GET64(ARG_ATTR_VAL_TYPE_MASK, arg->flags); +} + +static inline bool +arg_attr_flag_multi(const struct rte_argparse_arg *arg) +{ + return RTE_FIELD_GET64(ARG_ATTR_SUPPORT_MULTI_MASK, arg->flags); +} + +static inline uint32_t +arg_attr_unused_bits(const struct rte_argparse_arg *arg) +{ +#define USED_BIT_MASK (ARG_ATTR_HAS_VAL_MASK | ARG_ATTR_VAL_TYPE_MASK | \ + ARG_ATTR_SUPPORT_MULTI_MASK) + return arg->flags & ~USED_BIT_MASK; +} + +static int +verify_arg_name(const struct rte_argparse_arg *arg) +{ + if (is_arg_optional(arg)) { + if (strlen(arg->name_long) <= 3) { + ARGPARSE_LOG(ERR, "optional long name %s too short!", arg->name_long); + return -EINVAL; + } + if (arg->name_long[1] != '-') { + ARGPARSE_LOG(ERR, "optional long name %s must only start with '--'", + arg->name_long); + return -EINVAL; + } + if (arg->name_long[2] == '-') { + ARGPARSE_LOG(ERR, "optional long name %s should not start with '---'", + arg->name_long); + return -EINVAL; + } + } + + if (arg->name_short == NULL) + return 0; + + if (!is_arg_optional(arg)) { + ARGPARSE_LOG(ERR, "short name %s corresponding long name must be optional!", + arg->name_short); + return -EINVAL; + } + + if (strlen(arg->name_short) != 2 || arg->name_short[0] != '-' || + arg->name_short[1] == '-') { + ARGPARSE_LOG(ERR, "short name %s must start with a hyphen (-) followed by an English letter", + arg->name_short); + return -EINVAL; + } + + return 0; +} + +static int +verify_arg_help(const struct rte_argparse_arg *arg) +{ + if (arg->help == NULL) { + ARGPARSE_LOG(ERR, "argument %s must have help info!", arg->name_long); + return -EINVAL; + } + + return 0; +} + +static int +verify_arg_has_val(const struct rte_argparse_arg *arg) +{ + uint32_t has_val = arg_attr_has_val(arg); + + if (is_arg_positional(arg)) { + if (has_val == RTE_ARGPARSE_ARG_REQUIRED_VALUE) + return 0; + ARGPARSE_LOG(ERR, "argument %s is positional, should has zero or required-val!", + arg->name_long); + return -EINVAL; + } + + if (has_val == 0) { + ARGPARSE_LOG(ERR, "argument %s is optional, has-val config wrong!", + arg->name_long); + return -EINVAL; + } + + return 0; +} + +static int +verify_arg_saver(const struct rte_argparse *obj, uint32_t index) +{ + uint32_t cmp_max = RTE_FIELD_GET64(ARG_ATTR_VAL_TYPE_MASK, RTE_ARGPARSE_ARG_VALUE_MAX); + const struct rte_argparse_arg *arg = &obj->args[index]; + uint32_t val_type = arg_attr_val_type(arg); + uint32_t has_val = arg_attr_has_val(arg); + + if (arg->val_saver == NULL) { + if (val_type != 0) { + ARGPARSE_LOG(ERR, "argument %s parse by callback, val-type must be zero!", + arg->name_long); + return -EINVAL; + } + + if (obj->callback == NULL) { + ARGPARSE_LOG(ERR, "argument %s parse by callback, but callback is NULL!", + arg->name_long); + return -EINVAL; + } + + return 0; + } + + if (val_type == 0 || val_type >= cmp_max) { + ARGPARSE_LOG(ERR, "argument %s val-type config wrong!", arg->name_long); + return -EINVAL; + } + + if (has_val == RTE_ARGPARSE_ARG_REQUIRED_VALUE && arg->val_set != NULL) { + ARGPARSE_LOG(ERR, "argument %s has required value, val-set should be NULL!", + arg->name_long); + return -EINVAL; + } + + return 0; +} + +static int +verify_arg_flags(const struct rte_argparse *obj, uint32_t index) +{ + const struct rte_argparse_arg *arg = &obj->args[index]; + uint32_t unused_bits = arg_attr_unused_bits(arg); + + if (unused_bits != 0) { + ARGPARSE_LOG(ERR, "argument %s flags set wrong!", arg->name_long); + return -EINVAL; + } + + if (!(arg->flags & RTE_ARGPARSE_ARG_SUPPORT_MULTI)) + return 0; + + if (is_arg_positional(arg)) { + ARGPARSE_LOG(ERR, "argument %s is positional, don't support multiple times!", + arg->name_long); + return -EINVAL; + } + + if (arg->val_saver != NULL) { + ARGPARSE_LOG(ERR, "argument %s could occur multiple times, should use callback to parse!", + arg->name_long); + return -EINVAL; + } + + if (obj->callback == NULL) { + ARGPARSE_LOG(ERR, "argument %s should use callback to parse, but callback is NULL!", + arg->name_long); + return -EINVAL; + } + + return 0; +} + +static int +verify_arg_repeat(const struct rte_argparse *self, uint32_t index) +{ + const struct rte_argparse_arg *arg = &self->args[index]; + uint32_t i; + + for (i = 0; i < index; i++) { + if (!strcmp(arg->name_long, self->args[i].name_long)) { + ARGPARSE_LOG(ERR, "argument %s repeat!", arg->name_long); + return -EINVAL; + } + } + + if (arg->name_short == NULL) + return 0; + + for (i = 0; i < index; i++) { + if (self->args[i].name_short == NULL) + continue; + if (!strcmp(arg->name_short, self->args[i].name_short)) { + ARGPARSE_LOG(ERR, "argument %s repeat!", arg->name_short); + return -EINVAL; + } + } + + return 0; +} + +static int +verify_argparse_arg(const struct rte_argparse *obj, uint32_t index) +{ + const struct rte_argparse_arg *arg = &obj->args[index]; + int ret; + + ret = verify_arg_name(arg); + if (ret != 0) + return ret; + + ret = verify_arg_help(arg); + if (ret != 0) + return ret; + + ret = verify_arg_has_val(arg); + if (ret != 0) + return ret; + + ret = verify_arg_saver(obj, index); + if (ret != 0) + return ret; + + ret = verify_arg_flags(obj, index); + if (ret != 0) + return ret; + + ret = verify_arg_repeat(obj, index); + if (ret != 0) + return ret; + + return 0; +} + +static int +verify_argparse(const struct rte_argparse *obj) +{ + uint32_t idx; + int ret; + + if (obj->prog_name == NULL) { + ARGPARSE_LOG(ERR, "program name is NULL!"); + return -EINVAL; + } + + if (obj->usage == NULL) { + ARGPARSE_LOG(ERR, "usage is NULL!"); + return -EINVAL; + } + + for (idx = 0; idx < RTE_DIM(obj->reserved); idx++) { + if (obj->reserved[idx] != 0) { + ARGPARSE_LOG(ERR, "reserved field must be zero!"); + return -EINVAL; + } + } + + idx = 0; + while (obj->args[idx].name_long != NULL) { + ret = verify_argparse_arg(obj, idx); + if (ret != 0) + return ret; + idx++; + } + + return 0; +} + int rte_argparse_parse(struct rte_argparse *obj, int argc, char **argv) { - (void)obj; + int ret; + (void)argc; (void)argv; + + ret = verify_argparse(obj); + if (ret != 0) + goto error; + return 0; + +error: + if (obj->exit_on_error) + exit(ret); + return ret; } -- 2.17.1