1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation. 3 * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org> 4 * All rights reserved. 5 */ 6 7 #include <stdio.h> 8 #include <stdint.h> 9 #include <string.h> 10 #include <stdlib.h> 11 #include <errno.h> 12 13 #include <cmdline_rdline.h> 14 #include <cmdline_parse.h> 15 #include <cmdline_parse_ipaddr.h> 16 #include <cmdline_parse_num.h> 17 #include <cmdline_parse_string.h> 18 #include <cmdline.h> 19 20 #include <rte_string_fns.h> 21 22 #include "parse_obj_list.h" 23 24 struct object_list global_obj_list; 25 26 /* not defined under linux */ 27 #ifndef NIPQUAD 28 #define NIPQUAD_FMT "%u.%u.%u.%u" 29 #define NIPQUAD(addr) \ 30 (unsigned)((unsigned char *)&addr)[0], \ 31 (unsigned)((unsigned char *)&addr)[1], \ 32 (unsigned)((unsigned char *)&addr)[2], \ 33 (unsigned)((unsigned char *)&addr)[3] 34 #endif 35 36 #ifndef NIP6 37 #define NIP6_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x" 38 #define NIP6(addr) \ 39 (unsigned)((addr).s6_addr[0]), \ 40 (unsigned)((addr).s6_addr[1]), \ 41 (unsigned)((addr).s6_addr[2]), \ 42 (unsigned)((addr).s6_addr[3]), \ 43 (unsigned)((addr).s6_addr[4]), \ 44 (unsigned)((addr).s6_addr[5]), \ 45 (unsigned)((addr).s6_addr[6]), \ 46 (unsigned)((addr).s6_addr[7]), \ 47 (unsigned)((addr).s6_addr[8]), \ 48 (unsigned)((addr).s6_addr[9]), \ 49 (unsigned)((addr).s6_addr[10]), \ 50 (unsigned)((addr).s6_addr[11]), \ 51 (unsigned)((addr).s6_addr[12]), \ 52 (unsigned)((addr).s6_addr[13]), \ 53 (unsigned)((addr).s6_addr[14]), \ 54 (unsigned)((addr).s6_addr[15]) 55 #endif 56 57 58 /**********************************************************/ 59 60 /* Show or delete tokens. 8< */ 61 struct cmd_obj_del_show_result { 62 cmdline_fixed_string_t action; 63 struct object *obj; 64 }; 65 66 static void cmd_obj_del_show_parsed(void *parsed_result, 67 struct cmdline *cl, 68 __rte_unused void *data) 69 { 70 struct cmd_obj_del_show_result *res = parsed_result; 71 char ip_str[INET6_ADDRSTRLEN]; 72 73 if (res->obj->ip.family == AF_INET) 74 snprintf(ip_str, sizeof(ip_str), NIPQUAD_FMT, 75 NIPQUAD(res->obj->ip.addr.ipv4)); 76 else 77 snprintf(ip_str, sizeof(ip_str), NIP6_FMT, 78 NIP6(res->obj->ip.addr.ipv6)); 79 80 if (strcmp(res->action, "del") == 0) { 81 SLIST_REMOVE(&global_obj_list, res->obj, object, next); 82 cmdline_printf(cl, "Object %s removed, ip=%s\n", 83 res->obj->name, ip_str); 84 free(res->obj); 85 } 86 else if (strcmp(res->action, "show") == 0) { 87 cmdline_printf(cl, "Object %s, ip=%s\n", 88 res->obj->name, ip_str); 89 } 90 } 91 92 cmdline_parse_token_string_t cmd_obj_action = 93 TOKEN_STRING_INITIALIZER(struct cmd_obj_del_show_result, 94 action, "show#del"); 95 parse_token_obj_list_t cmd_obj_obj = 96 TOKEN_OBJ_LIST_INITIALIZER(struct cmd_obj_del_show_result, obj, 97 &global_obj_list); 98 99 cmdline_parse_inst_t cmd_obj_del_show = { 100 .f = cmd_obj_del_show_parsed, /* function to call */ 101 .data = NULL, /* 2nd arg of func */ 102 .help_str = "Show/del an object", 103 .tokens = { /* token list, NULL terminated */ 104 (void *)&cmd_obj_action, 105 (void *)&cmd_obj_obj, 106 NULL, 107 }, 108 }; 109 /* >8 End of show or delete tokens. */ 110 111 /**********************************************************/ 112 113 struct cmd_obj_add_result { 114 cmdline_fixed_string_t action; 115 cmdline_fixed_string_t name; 116 cmdline_ipaddr_t ip; 117 }; 118 119 static void cmd_obj_add_parsed(void *parsed_result, 120 struct cmdline *cl, 121 __rte_unused void *data) 122 { 123 struct cmd_obj_add_result *res = parsed_result; 124 struct object *o; 125 char ip_str[INET6_ADDRSTRLEN]; 126 127 SLIST_FOREACH(o, &global_obj_list, next) { 128 if (!strcmp(res->name, o->name)) { 129 cmdline_printf(cl, "Object %s already exist\n", res->name); 130 return; 131 } 132 break; 133 } 134 135 o = malloc(sizeof(*o)); 136 if (!o) { 137 cmdline_printf(cl, "mem error\n"); 138 return; 139 } 140 strlcpy(o->name, res->name, sizeof(o->name)); 141 o->ip = res->ip; 142 SLIST_INSERT_HEAD(&global_obj_list, o, next); 143 144 if (o->ip.family == AF_INET) 145 snprintf(ip_str, sizeof(ip_str), NIPQUAD_FMT, 146 NIPQUAD(o->ip.addr.ipv4)); 147 else 148 snprintf(ip_str, sizeof(ip_str), NIP6_FMT, 149 NIP6(o->ip.addr.ipv6)); 150 151 cmdline_printf(cl, "Object %s added, ip=%s\n", 152 o->name, ip_str); 153 } 154 155 cmdline_parse_token_string_t cmd_obj_action_add = 156 TOKEN_STRING_INITIALIZER(struct cmd_obj_add_result, action, "add"); 157 cmdline_parse_token_string_t cmd_obj_name = 158 TOKEN_STRING_INITIALIZER(struct cmd_obj_add_result, name, NULL); 159 cmdline_parse_token_ipaddr_t cmd_obj_ip = 160 TOKEN_IPADDR_INITIALIZER(struct cmd_obj_add_result, ip); 161 162 cmdline_parse_inst_t cmd_obj_add = { 163 .f = cmd_obj_add_parsed, /* function to call */ 164 .data = NULL, /* 2nd arg of func */ 165 .help_str = "Add an object (name, val)", 166 .tokens = { /* token list, NULL terminated */ 167 (void *)&cmd_obj_action_add, 168 (void *)&cmd_obj_name, 169 (void *)&cmd_obj_ip, 170 NULL, 171 }, 172 }; 173 174 /**********************************************************/ 175 176 struct cmd_help_result { 177 cmdline_fixed_string_t help; 178 }; 179 180 static void cmd_help_parsed(__rte_unused void *parsed_result, 181 struct cmdline *cl, 182 __rte_unused void *data) 183 { 184 cmdline_printf(cl, 185 "Demo example of command line interface in RTE\n\n" 186 "This is a readline-like interface that can be used to\n" 187 "debug your RTE application. It supports some features\n" 188 "of GNU readline like completion, cut/paste, and some\n" 189 "other special bindings.\n\n" 190 "This demo shows how rte_cmdline library can be\n" 191 "extended to handle a list of objects. There are\n" 192 "3 commands:\n" 193 "- add obj_name IP\n" 194 "- del obj_name\n" 195 "- show obj_name\n\n"); 196 } 197 198 cmdline_parse_token_string_t cmd_help_help = 199 TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help"); 200 201 cmdline_parse_inst_t cmd_help = { 202 .f = cmd_help_parsed, /* function to call */ 203 .data = NULL, /* 2nd arg of func */ 204 .help_str = "show help", 205 .tokens = { /* token list, NULL terminated */ 206 (void *)&cmd_help_help, 207 NULL, 208 }, 209 }; 210 211 212 /**********************************************************/ 213 /**********************************************************/ 214 /****** CONTEXT (list of instruction) */ 215 216 /* Cmdline context list of commands in NULL-terminated table. 8< */ 217 cmdline_parse_ctx_t main_ctx[] = { 218 (cmdline_parse_inst_t *)&cmd_obj_del_show, 219 (cmdline_parse_inst_t *)&cmd_obj_add, 220 (cmdline_parse_inst_t *)&cmd_help, 221 NULL, 222 }; 223 /* >8 End of context list. */ 224