xref: /dpdk/app/graph/cli.c (revision 3850cb06ab9cbbeedd58899ac69a60511a956b1f) 
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2023 Marvell.
3  */
4 
5 #include <errno.h>
6 #include <stdio.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include <string.h>
10 
11 #include <cmdline_parse.h>
12 #include <cmdline_parse_num.h>
13 #include <cmdline_parse_string.h>
14 #include <cmdline_socket.h>
15 #include <rte_common.h>
16 
17 #include "module_api.h"
18 
19 #define CMD_MAX_TOKENS 256
20 #define MAX_LINE_SIZE 2048
21 
22 cmdline_parse_ctx_t modules_ctx[] = {
23 	(cmdline_parse_inst_t *)&mempool_config_cmd_ctx,
24 	(cmdline_parse_inst_t *)&mempool_help_cmd_ctx,
25 	(cmdline_parse_inst_t *)&ethdev_show_cmd_ctx,
26 	(cmdline_parse_inst_t *)&ethdev_stats_cmd_ctx,
27 	(cmdline_parse_inst_t *)&ethdev_mtu_cmd_ctx,
28 	(cmdline_parse_inst_t *)&ethdev_prom_mode_cmd_ctx,
29 	(cmdline_parse_inst_t *)&ethdev_ip4_cmd_ctx,
30 	(cmdline_parse_inst_t *)&ethdev_ip6_cmd_ctx,
31 	(cmdline_parse_inst_t *)&ethdev_cmd_ctx,
32 	(cmdline_parse_inst_t *)&ethdev_help_cmd_ctx,
33 	NULL,
34 };
35 
36 static struct cmdline *cl;
37 
38 static int
39 is_comment(char *in)
40 {
41 	if ((strlen(in) && index("!#%;", in[0])) ||
42 		(strncmp(in, "//", 2) == 0) ||
43 		(strncmp(in, "--", 2) == 0))
44 		return 1;
45 
46 	return 0;
47 }
48 
49 void
50 cli_init(void)
51 {
52 	cl = cmdline_stdin_new(modules_ctx, "");
53 }
54 
55 void
56 cli_exit(void)
57 {
58 	cmdline_stdin_exit(cl);
59 }
60 
61 void
62 cli_process(char *in, char *out, size_t out_size, __rte_unused void *obj)
63 {
64 	int rc;
65 
66 	if (is_comment(in))
67 		return;
68 
69 	rc = cmdline_parse(cl, in);
70 	if (rc == CMDLINE_PARSE_AMBIGUOUS)
71 		snprintf(out, out_size, MSG_CMD_FAIL, "Ambiguous command");
72 	else if (rc == CMDLINE_PARSE_NOMATCH)
73 		snprintf(out, out_size, MSG_CMD_FAIL, "Command mismatch");
74 	else if (rc == CMDLINE_PARSE_BAD_ARGS)
75 		snprintf(out, out_size, MSG_CMD_FAIL, "Bad arguments");
76 
77 	return;
78 
79 }
80 
81 int
82 cli_script_process(const char *file_name, size_t msg_in_len_max, size_t msg_out_len_max, void *obj)
83 {
84 	char *msg_in = NULL, *msg_out = NULL;
85 	int rc = -EINVAL;
86 	FILE *f = NULL;
87 
88 	/* Check input arguments */
89 	if ((file_name == NULL) || (strlen(file_name) == 0) || (msg_in_len_max == 0) ||
90 	    (msg_out_len_max == 0))
91 		return rc;
92 
93 	msg_in = malloc(msg_in_len_max + 1);
94 	msg_out = malloc(msg_out_len_max + 1);
95 	if ((msg_in == NULL) || (msg_out == NULL)) {
96 		rc = -ENOMEM;
97 		goto exit;
98 	}
99 
100 	/* Open input file */
101 	f = fopen(file_name, "r");
102 	if (f == NULL) {
103 		rc = -EIO;
104 		goto exit;
105 	}
106 
107 	/* Read file */
108 	while (fgets(msg_in, msg_in_len_max, f) != NULL) {
109 		msg_out[0] = 0;
110 
111 		cli_process(msg_in, msg_out, msg_out_len_max, obj);
112 
113 		if (strlen(msg_out))
114 			printf("%s", msg_out);
115 	}
116 
117 	/* Close file */
118 	fclose(f);
119 	rc = 0;
120 
121 exit:
122 	free(msg_out);
123 	free(msg_in);
124 	return rc;
125 }
126