xref: /dpdk/app/graph/cli.c (revision 9a3a41eb3a82d489ffcf8ba5354162471ed35aa9) 
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 *)&ipv4_lookup_cmd_ctx,
34 	(cmdline_parse_inst_t *)&ipv4_lookup_help_cmd_ctx,
35 	(cmdline_parse_inst_t *)&ipv6_lookup_cmd_ctx,
36 	(cmdline_parse_inst_t *)&ipv6_lookup_help_cmd_ctx,
37 	(cmdline_parse_inst_t *)&neigh_v4_cmd_ctx,
38 	(cmdline_parse_inst_t *)&neigh_v6_cmd_ctx,
39 	(cmdline_parse_inst_t *)&neigh_help_cmd_ctx,
40 	NULL,
41 };
42 
43 static struct cmdline *cl;
44 
45 static int
46 is_comment(char *in)
47 {
48 	if ((strlen(in) && index("!#%;", in[0])) ||
49 		(strncmp(in, "//", 2) == 0) ||
50 		(strncmp(in, "--", 2) == 0))
51 		return 1;
52 
53 	return 0;
54 }
55 
56 void
57 cli_init(void)
58 {
59 	cl = cmdline_stdin_new(modules_ctx, "");
60 }
61 
62 void
63 cli_exit(void)
64 {
65 	cmdline_stdin_exit(cl);
66 }
67 
68 void
69 cli_process(char *in, char *out, size_t out_size, __rte_unused void *obj)
70 {
71 	int rc;
72 
73 	if (is_comment(in))
74 		return;
75 
76 	rc = cmdline_parse(cl, in);
77 	if (rc == CMDLINE_PARSE_AMBIGUOUS)
78 		snprintf(out, out_size, MSG_CMD_FAIL, "Ambiguous command");
79 	else if (rc == CMDLINE_PARSE_NOMATCH)
80 		snprintf(out, out_size, MSG_CMD_FAIL, "Command mismatch");
81 	else if (rc == CMDLINE_PARSE_BAD_ARGS)
82 		snprintf(out, out_size, MSG_CMD_FAIL, "Bad arguments");
83 
84 	return;
85 
86 }
87 
88 int
89 cli_script_process(const char *file_name, size_t msg_in_len_max, size_t msg_out_len_max, void *obj)
90 {
91 	char *msg_in = NULL, *msg_out = NULL;
92 	int rc = -EINVAL;
93 	FILE *f = NULL;
94 
95 	/* Check input arguments */
96 	if ((file_name == NULL) || (strlen(file_name) == 0) || (msg_in_len_max == 0) ||
97 	    (msg_out_len_max == 0))
98 		return rc;
99 
100 	msg_in = malloc(msg_in_len_max + 1);
101 	msg_out = malloc(msg_out_len_max + 1);
102 	if ((msg_in == NULL) || (msg_out == NULL)) {
103 		rc = -ENOMEM;
104 		goto exit;
105 	}
106 
107 	/* Open input file */
108 	f = fopen(file_name, "r");
109 	if (f == NULL) {
110 		rc = -EIO;
111 		goto exit;
112 	}
113 
114 	/* Read file */
115 	while (fgets(msg_in, msg_in_len_max, f) != NULL) {
116 		msg_out[0] = 0;
117 
118 		cli_process(msg_in, msg_out, msg_out_len_max, obj);
119 
120 		if (strlen(msg_out))
121 			printf("%s", msg_out);
122 	}
123 
124 	/* Close file */
125 	fclose(f);
126 	rc = 0;
127 
128 exit:
129 	free(msg_out);
130 	free(msg_in);
131 	return rc;
132 }
133