xref: /dpdk/app/graph/cli.c (revision 0eadf8f8d6ba10ce7a589346b28585828d371cf8) 
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 	(cmdline_parse_inst_t *)&ethdev_rx_cmd_ctx,
34 	(cmdline_parse_inst_t *)&ethdev_rx_help_cmd_ctx,
35 	(cmdline_parse_inst_t *)&ipv4_lookup_cmd_ctx,
36 	(cmdline_parse_inst_t *)&ipv4_lookup_help_cmd_ctx,
37 	(cmdline_parse_inst_t *)&ipv6_lookup_cmd_ctx,
38 	(cmdline_parse_inst_t *)&ipv6_lookup_help_cmd_ctx,
39 	(cmdline_parse_inst_t *)&neigh_v4_cmd_ctx,
40 	(cmdline_parse_inst_t *)&neigh_v6_cmd_ctx,
41 	(cmdline_parse_inst_t *)&neigh_help_cmd_ctx,
42 	NULL,
43 };
44 
45 static struct cmdline *cl;
46 
47 static int
48 is_comment(char *in)
49 {
50 	if ((strlen(in) && index("!#%;", in[0])) ||
51 		(strncmp(in, "//", 2) == 0) ||
52 		(strncmp(in, "--", 2) == 0))
53 		return 1;
54 
55 	return 0;
56 }
57 
58 void
59 cli_init(void)
60 {
61 	cl = cmdline_stdin_new(modules_ctx, "");
62 }
63 
64 void
65 cli_exit(void)
66 {
67 	cmdline_stdin_exit(cl);
68 }
69 
70 void
71 cli_process(char *in, char *out, size_t out_size, __rte_unused void *obj)
72 {
73 	int rc;
74 
75 	if (is_comment(in))
76 		return;
77 
78 	rc = cmdline_parse(cl, in);
79 	if (rc == CMDLINE_PARSE_AMBIGUOUS)
80 		snprintf(out, out_size, MSG_CMD_FAIL, "Ambiguous command");
81 	else if (rc == CMDLINE_PARSE_NOMATCH)
82 		snprintf(out, out_size, MSG_CMD_FAIL, "Command mismatch");
83 	else if (rc == CMDLINE_PARSE_BAD_ARGS)
84 		snprintf(out, out_size, MSG_CMD_FAIL, "Bad arguments");
85 
86 	return;
87 
88 }
89 
90 int
91 cli_script_process(const char *file_name, size_t msg_in_len_max, size_t msg_out_len_max, void *obj)
92 {
93 	char *msg_in = NULL, *msg_out = NULL;
94 	int rc = -EINVAL;
95 	FILE *f = NULL;
96 
97 	/* Check input arguments */
98 	if ((file_name == NULL) || (strlen(file_name) == 0) || (msg_in_len_max == 0) ||
99 	    (msg_out_len_max == 0))
100 		return rc;
101 
102 	msg_in = malloc(msg_in_len_max + 1);
103 	msg_out = malloc(msg_out_len_max + 1);
104 	if ((msg_in == NULL) || (msg_out == NULL)) {
105 		rc = -ENOMEM;
106 		goto exit;
107 	}
108 
109 	/* Open input file */
110 	f = fopen(file_name, "r");
111 	if (f == NULL) {
112 		rc = -EIO;
113 		goto exit;
114 	}
115 
116 	/* Read file */
117 	while (fgets(msg_in, msg_in_len_max, f) != NULL) {
118 		msg_out[0] = 0;
119 
120 		cli_process(msg_in, msg_out, msg_out_len_max, obj);
121 
122 		if (strlen(msg_out))
123 			printf("%s", msg_out);
124 	}
125 
126 	/* Close file */
127 	fclose(f);
128 	rc = 0;
129 
130 exit:
131 	free(msg_out);
132 	free(msg_in);
133 	return rc;
134 }
135