xref: /dpdk/app/graph/cli.c (revision 60531a2c53f4d2b4b96ebb10ca813f62d0a5508d) 
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 *)&graph_config_cmd_ctx,
24 	(cmdline_parse_inst_t *)&graph_start_cmd_ctx,
25 	(cmdline_parse_inst_t *)&graph_stats_cmd_ctx,
26 	(cmdline_parse_inst_t *)&graph_help_cmd_ctx,
27 	(cmdline_parse_inst_t *)&mempool_config_cmd_ctx,
28 	(cmdline_parse_inst_t *)&mempool_help_cmd_ctx,
29 	(cmdline_parse_inst_t *)&ethdev_show_cmd_ctx,
30 	(cmdline_parse_inst_t *)&ethdev_stats_cmd_ctx,
31 	(cmdline_parse_inst_t *)&ethdev_mtu_cmd_ctx,
32 	(cmdline_parse_inst_t *)&ethdev_prom_mode_cmd_ctx,
33 	(cmdline_parse_inst_t *)&ethdev_ip4_cmd_ctx,
34 	(cmdline_parse_inst_t *)&ethdev_ip6_cmd_ctx,
35 	(cmdline_parse_inst_t *)&ethdev_cmd_ctx,
36 	(cmdline_parse_inst_t *)&ethdev_help_cmd_ctx,
37 	(cmdline_parse_inst_t *)&ethdev_rx_cmd_ctx,
38 	(cmdline_parse_inst_t *)&ethdev_rx_help_cmd_ctx,
39 	(cmdline_parse_inst_t *)&ipv4_lookup_cmd_ctx,
40 	(cmdline_parse_inst_t *)&ipv4_lookup_help_cmd_ctx,
41 	(cmdline_parse_inst_t *)&ipv6_lookup_cmd_ctx,
42 	(cmdline_parse_inst_t *)&ipv6_lookup_help_cmd_ctx,
43 	(cmdline_parse_inst_t *)&neigh_v4_cmd_ctx,
44 	(cmdline_parse_inst_t *)&neigh_v6_cmd_ctx,
45 	(cmdline_parse_inst_t *)&neigh_help_cmd_ctx,
46 	NULL,
47 };
48 
49 static struct cmdline *cl;
50 
51 static int
52 is_comment(char *in)
53 {
54 	if ((strlen(in) && index("!#%;", in[0])) ||
55 		(strncmp(in, "//", 2) == 0) ||
56 		(strncmp(in, "--", 2) == 0))
57 		return 1;
58 
59 	return 0;
60 }
61 
62 void
63 cli_init(void)
64 {
65 	cl = cmdline_stdin_new(modules_ctx, "");
66 }
67 
68 void
69 cli_exit(void)
70 {
71 	cmdline_stdin_exit(cl);
72 }
73 
74 void
75 cli_process(char *in, char *out, size_t out_size, __rte_unused void *obj)
76 {
77 	int rc;
78 
79 	if (is_comment(in))
80 		return;
81 
82 	rc = cmdline_parse(cl, in);
83 	if (rc == CMDLINE_PARSE_AMBIGUOUS)
84 		snprintf(out, out_size, MSG_CMD_FAIL, "Ambiguous command");
85 	else if (rc == CMDLINE_PARSE_NOMATCH)
86 		snprintf(out, out_size, MSG_CMD_FAIL, "Command mismatch");
87 	else if (rc == CMDLINE_PARSE_BAD_ARGS)
88 		snprintf(out, out_size, MSG_CMD_FAIL, "Bad arguments");
89 
90 	return;
91 
92 }
93 
94 int
95 cli_script_process(const char *file_name, size_t msg_in_len_max, size_t msg_out_len_max, void *obj)
96 {
97 	char *msg_in = NULL, *msg_out = NULL;
98 	int rc = -EINVAL;
99 	FILE *f = NULL;
100 
101 	/* Check input arguments */
102 	if ((file_name == NULL) || (strlen(file_name) == 0) || (msg_in_len_max == 0) ||
103 	    (msg_out_len_max == 0))
104 		return rc;
105 
106 	msg_in = malloc(msg_in_len_max + 1);
107 	msg_out = malloc(msg_out_len_max + 1);
108 	if ((msg_in == NULL) || (msg_out == NULL)) {
109 		rc = -ENOMEM;
110 		goto exit;
111 	}
112 
113 	/* Open input file */
114 	f = fopen(file_name, "r");
115 	if (f == NULL) {
116 		rc = -EIO;
117 		goto exit;
118 	}
119 
120 	/* Read file */
121 	while (fgets(msg_in, msg_in_len_max, f) != NULL) {
122 		msg_out[0] = 0;
123 
124 		cli_process(msg_in, msg_out, msg_out_len_max, obj);
125 
126 		if (strlen(msg_out))
127 			printf("%s", msg_out);
128 	}
129 
130 	/* Close file */
131 	fclose(f);
132 	rc = 0;
133 
134 exit:
135 	free(msg_out);
136 	free(msg_in);
137 	return rc;
138 }
139