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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * * Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * * Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * * Neither the name of Intel Corporation nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | /* | |
35 | * Copyright (c) 2010, Keith Wiles <keith.wiles@windriver.com> | |
36 | * All rights reserved. | |
37 | * Redistribution and use in source and binary forms, with or without | |
38 | * modification, are permitted provided that the following conditions are met: | |
39 | * | |
40 | * * Redistributions of source code must retain the above copyright | |
41 | * notice, this list of conditions and the following disclaimer. | |
42 | * * Redistributions in binary form must reproduce the above copyright | |
43 | * notice, this list of conditions and the following disclaimer in the | |
44 | * documentation and/or other materials provided with the distribution. | |
45 | * * Neither the name of the University of California, Berkeley nor the | |
46 | * names of its contributors may be used to endorse or promote products | |
47 | * derived from this software without specific prior written permission. | |
48 | * | |
49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY | |
50 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
51 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
52 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY | |
53 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
54 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
55 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
56 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
57 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
58 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
59 | */ | |
60 | ||
61 | #include <stdio.h> | |
62 | #include <stdlib.h> | |
63 | #include <inttypes.h> | |
64 | #include <ctype.h> | |
65 | #include <string.h> | |
66 | #include <errno.h> | |
67 | #include <stdarg.h> | |
68 | ||
69 | #include <rte_string_fns.h> | |
70 | #include "cmdline_parse.h" | |
71 | #include "cmdline_parse_portlist.h" | |
72 | ||
73 | struct cmdline_token_ops cmdline_token_portlist_ops = { | |
74 | .parse = cmdline_parse_portlist, | |
75 | .complete_get_nb = NULL, | |
76 | .complete_get_elt = NULL, | |
77 | .get_help = cmdline_get_help_portlist, | |
78 | }; | |
79 | ||
80 | static void | |
81 | parse_set_list(cmdline_portlist_t *pl, size_t low, size_t high) | |
82 | { | |
83 | do { | |
84 | pl->map |= (1 << low++); | |
85 | } while (low <= high); | |
86 | } | |
87 | ||
88 | static int | |
89 | parse_ports(cmdline_portlist_t *pl, const char *str) | |
90 | { | |
91 | size_t ps, pe; | |
92 | const char *first, *last; | |
93 | char *end; | |
94 | ||
95 | for (first = str, last = first; | |
96 | first != NULL && last != NULL; | |
97 | first = last + 1) { | |
98 | ||
99 | last = strchr(first, ','); | |
100 | ||
101 | errno = 0; | |
102 | ps = strtoul(first, &end, 10); | |
103 | if (errno != 0 || end == first || | |
104 | (end[0] != '-' && end[0] != 0 && end != last)) | |
105 | return -1; | |
106 | ||
107 | /* Support for N-M portlist format */ | |
108 | if (end[0] == '-') { | |
109 | errno = 0; | |
110 | first = end + 1; | |
111 | pe = strtoul(first, &end, 10); | |
112 | if (errno != 0 || end == first || | |
113 | (end[0] != 0 && end != last)) | |
114 | return -1; | |
115 | } else { | |
116 | pe = ps; | |
117 | } | |
118 | ||
119 | if (ps > pe || pe >= sizeof (pl->map) * 8) | |
120 | return -1; | |
121 | ||
122 | parse_set_list(pl, ps, pe); | |
123 | } | |
124 | ||
125 | return 0; | |
126 | } | |
127 | ||
128 | int | |
129 | cmdline_parse_portlist(__attribute__((unused)) cmdline_parse_token_hdr_t *tk, | |
130 | const char *buf, void *res, unsigned ressize) | |
131 | { | |
132 | unsigned int token_len = 0; | |
133 | char portlist_str[PORTLIST_TOKEN_SIZE+1]; | |
134 | cmdline_portlist_t *pl; | |
135 | ||
136 | if (!buf || ! *buf) | |
137 | return -1; | |
138 | ||
139 | if (res && ressize < sizeof(cmdline_portlist_t)) | |
140 | return -1; | |
141 | ||
142 | pl = res; | |
143 | ||
144 | while (!cmdline_isendoftoken(buf[token_len]) && | |
145 | (token_len < PORTLIST_TOKEN_SIZE)) | |
146 | token_len++; | |
147 | ||
148 | if (token_len >= PORTLIST_TOKEN_SIZE) | |
149 | return -1; | |
150 | ||
151 | snprintf(portlist_str, token_len+1, "%s", buf); | |
152 | ||
153 | if (pl) { | |
154 | pl->map = 0; | |
155 | if (strcmp("all", portlist_str) == 0) | |
156 | pl->map = UINT32_MAX; | |
157 | else if (parse_ports(pl, portlist_str) != 0) | |
158 | return -1; | |
159 | } | |
160 | ||
161 | return token_len; | |
162 | } | |
163 | ||
164 | int | |
165 | cmdline_get_help_portlist(__attribute__((unused)) cmdline_parse_token_hdr_t *tk, | |
166 | char *dstbuf, unsigned int size) | |
167 | { | |
168 | int ret; | |
169 | ret = snprintf(dstbuf, size, "range of ports as 3,4-6,8-19,20"); | |
170 | if (ret < 0) | |
171 | return -1; | |
172 | return 0; | |
173 | } |