1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation. 3 * Copyright (c) 2010, Keith Wiles <keith.wiles@windriver.com> 4 * All rights reserved. 5 */ 6 7 #include <stdio.h> 8 #include <stdlib.h> 9 #include <inttypes.h> 10 #include <ctype.h> 11 #include <string.h> 12 #include <errno.h> 13 #include <stdarg.h> 14 15 #include <rte_string_fns.h> 16 #include "cmdline_parse.h" 17 #include "cmdline_parse_portlist.h" 18 19 struct cmdline_token_ops cmdline_token_portlist_ops = { 20 .parse = cmdline_parse_portlist, 21 .complete_get_nb = NULL, 22 .complete_get_elt = NULL, 23 .get_help = cmdline_get_help_portlist, 24 }; 25 26 static void 27 parse_set_list(cmdline_portlist_t *pl, size_t low, size_t high) 28 { 29 do { 30 pl->map |= (1 << low++); 31 } while (low <= high); 32 } 33 34 static int 35 parse_ports(cmdline_portlist_t *pl, const char *str) 36 { 37 size_t ps, pe; 38 const char *first, *last; 39 char *end; 40 41 for (first = str, last = first; 42 first != NULL && last != NULL; 43 first = last + 1) { 44 45 last = strchr(first, ','); 46 47 errno = 0; 48 ps = strtoul(first, &end, 10); 49 if (errno != 0 || end == first || 50 (end[0] != '-' && end[0] != 0 && end != last)) 51 return -1; 52 53 /* Support for N-M portlist format */ 54 if (end[0] == '-') { 55 errno = 0; 56 first = end + 1; 57 pe = strtoul(first, &end, 10); 58 if (errno != 0 || end == first || 59 (end[0] != 0 && end != last)) 60 return -1; 61 } else { 62 pe = ps; 63 } 64 65 if (ps > pe || pe >= sizeof (pl->map) * 8) 66 return -1; 67 68 parse_set_list(pl, ps, pe); 69 } 70 71 return 0; 72 } 73 74 int 75 cmdline_parse_portlist(__rte_unused cmdline_parse_token_hdr_t *tk, 76 const char *buf, void *res, unsigned ressize) 77 { 78 unsigned int token_len = 0; 79 char portlist_str[PORTLIST_TOKEN_SIZE+1]; 80 cmdline_portlist_t *pl; 81 82 if (!buf || ! *buf) 83 return -1; 84 85 if (res && ressize < sizeof(cmdline_portlist_t)) 86 return -1; 87 88 pl = res; 89 90 while (!cmdline_isendoftoken(buf[token_len]) && 91 (token_len < PORTLIST_TOKEN_SIZE)) 92 token_len++; 93 94 if (token_len >= PORTLIST_TOKEN_SIZE) 95 return -1; 96 97 strlcpy(portlist_str, buf, token_len + 1); 98 99 if (pl) { 100 pl->map = 0; 101 if (strcmp("all", portlist_str) == 0) 102 pl->map = UINT32_MAX; 103 else if (parse_ports(pl, portlist_str) != 0) 104 return -1; 105 } 106 107 return token_len; 108 } 109 110 int 111 cmdline_get_help_portlist(__rte_unused cmdline_parse_token_hdr_t *tk, 112 char *dstbuf, unsigned int size) 113 { 114 int ret; 115 ret = snprintf(dstbuf, size, "range of ports as 3,4-6,8-19,20"); 116 if (ret < 0) 117 return -1; 118 return 0; 119 } 120