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