[mirror_iproute2.git] / rdma / rdma.c

// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
 * rdma.c	RDMA tool
 * Authors:     Leon Romanovsky <leonro@mellanox.com>
 */

#include "rdma.h"
#include "SNAPSHOT.h"

static void help(char *name)
{
	pr_out("Usage: %s [ OPTIONS ] OBJECT { COMMAND | help }\n"
	       "       %s [ -f[orce] ] -b[atch] filename\n"
	       "where  OBJECT := { dev | link | resource | help }\n"
	       "       OPTIONS := { -V[ersion] | -d[etails] | -j[son] | -p[retty]}\n", name, name);
}

static int cmd_help(struct rd *rd)
{
	help(rd->filename);
	return 0;
}

static int rd_cmd(struct rd *rd, int argc, char **argv)
{
	const struct rd_cmd cmds[] = {
		{ NULL,		cmd_help },
		{ "help",	cmd_help },
		{ "dev",	cmd_dev },
		{ "link",	cmd_link },
		{ "resource",	cmd_res },
		{ 0 }
	};

	rd->argc = argc;
	rd->argv = argv;

	return rd_exec_cmd(rd, cmds, "object");
}

static int rd_batch(struct rd *rd, const char *name, bool force)
{
	char *line = NULL;
	size_t len = 0;
	int ret = 0;

	if (name && strcmp(name, "-") != 0) {
		if (!freopen(name, "r", stdin)) {
			pr_err("Cannot open file \"%s\" for reading: %s\n",
			       name, strerror(errno));
			return errno;
		}
	}

	cmdlineno = 0;
	while (getcmdline(&line, &len, stdin) != -1) {
		char *largv[512];
		int largc;

		largc = makeargs(line, largv, ARRAY_SIZE(largv));
		if (!largc)
			continue;	/* blank line */

		ret = rd_cmd(rd, largc, largv);
		if (ret) {
			pr_err("Command failed %s:%d\n", name, cmdlineno);
			if (!force)
				break;
		}
	}

	free(line);

	return ret;
}

static int rd_init(struct rd *rd, char *filename)
{
	uint32_t seq;
	int ret;

	rd->filename = filename;
	INIT_LIST_HEAD(&rd->dev_map_list);
	INIT_LIST_HEAD(&rd->filter_list);

	if (rd->json_output) {
		rd->jw = jsonw_new(stdout);
		if (!rd->jw) {
			pr_err("Failed to create JSON writer\n");
			return -ENOMEM;
		}
		jsonw_pretty(rd->jw, rd->pretty_output);
	}

	rd->buff = malloc(MNL_SOCKET_BUFFER_SIZE);
	if (!rd->buff)
		return -ENOMEM;

	rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
		       &seq, (NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP));
	ret = rd_send_msg(rd);
	if (ret)
		return ret;

	return rd_recv_msg(rd, rd_dev_init_cb, rd, seq);
}

static void rd_cleanup(struct rd *rd)
{
	if (rd->json_output)
		jsonw_destroy(&rd->jw);
	rd_free(rd);
}

int main(int argc, char **argv)
{
	static const struct option long_options[] = {
		{ "version",		no_argument,		NULL, 'V' },
		{ "help",		no_argument,		NULL, 'h' },
		{ "json",		no_argument,		NULL, 'j' },
		{ "pretty",		no_argument,		NULL, 'p' },
		{ "details",		no_argument,		NULL, 'd' },
		{ "force",		no_argument,		NULL, 'f' },
		{ "batch",		required_argument,	NULL, 'b' },
		{ NULL, 0, NULL, 0 }
	};
	bool show_driver_details = false;
	const char *batch_file = NULL;
	bool pretty_output = false;
	bool show_details = false;
	bool json_output = false;
	bool force = false;
	struct rd rd = {};
	char *filename;
	int opt;
	int err;

	filename = basename(argv[0]);

	while ((opt = getopt_long(argc, argv, ":Vhdpjfb:",
				  long_options, NULL)) >= 0) {
		switch (opt) {
		case 'V':
			printf("%s utility, iproute2-ss%s\n",
			       filename, SNAPSHOT);
			return EXIT_SUCCESS;
		case 'p':
			pretty_output = true;
			break;
		case 'd':
			if (show_details)
				show_driver_details = true;
			else
				show_details = true;
			break;
		case 'j':
			json_output = true;
			break;
		case 'f':
			force = true;
			break;
		case 'b':
			batch_file = optarg;
			break;
		case 'h':
			help(filename);
			return EXIT_SUCCESS;
		case ':':
			pr_err("-%c option requires an argument\n", optopt);
			return EXIT_FAILURE;
		default:
			pr_err("Unknown option.\n");
			help(filename);
			return EXIT_FAILURE;
		}
	}

	argc -= optind;
	argv += optind;

	rd.show_details = show_details;
	rd.show_driver_details = show_driver_details;
	rd.json_output = json_output;
	rd.pretty_output = pretty_output;

	err = rd_init(&rd, filename);
	if (err)
		goto out;

	if (batch_file)
		err = rd_batch(&rd, batch_file, force);
	else
		err = rd_cmd(&rd, argc, argv);
out:
	/* Always cleanup */
	rd_cleanup(&rd);
	return err ? EXIT_FAILURE : EXIT_SUCCESS;
}
Commit	Line	Data
835d8321	1	// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
74bd75c2 LR	2	/*
74bd75c2 LR	3	* rdma.c RDMA tool
74bd75c2 LR	4	* Authors: Leon Romanovsky <leonro@mellanox.com>
	5	*/
	6
	7	#include "rdma.h"
	8	#include "SNAPSHOT.h"
	9
	10	static void help(char *name)
	11	{
	12	pr_out("Usage: %s [ OPTIONS ] OBJECT { COMMAND \| help }\n"
486fe5f0	13	" %s [ -f[orce] ] -b[atch] filename\n"
923aa825	14	"where OBJECT := { dev \| link \| resource \| help }\n"
486fe5f0	15	" OPTIONS := { -V[ersion] \| -d[etails] \| -j[son] \| -p[retty]}\n", name, name);
74bd75c2 LR	16	}
	17
	18	static int cmd_help(struct rd *rd)
	19	{
	20	help(rd->filename);
	21	return 0;
	22	}
	23
486fe5f0	24	static int rd_cmd(struct rd rd, int argc, char *argv)
74bd75c2 LR	25	{
	26	const struct rd_cmd cmds[] = {
	27	{ NULL, cmd_help },
	28	{ "help", cmd_help },
40df8263	29	{ "dev", cmd_dev },
da990ab4	30	{ "link", cmd_link },
923aa825	31	{ "resource", cmd_res },
74bd75c2 LR	32	{ 0 }
	33	};
	34
486fe5f0 LR	35	rd->argc = argc;
	36	rd->argv = argv;
	37
74bd75c2 LR	38	return rd_exec_cmd(rd, cmds, "object");
	39	}
	40
486fe5f0 LR	41	static int rd_batch(struct rd rd, const char name, bool force)
	42	{
	43	char *line = NULL;
	44	size_t len = 0;
	45	int ret = 0;
	46
	47	if (name && strcmp(name, "-") != 0) {
	48	if (!freopen(name, "r", stdin)) {
	49	pr_err("Cannot open file \"%s\" for reading: %s\n",
	50	name, strerror(errno));
	51	return errno;
	52	}
	53	}
	54
	55	cmdlineno = 0;
	56	while (getcmdline(&line, &len, stdin) != -1) {
	57	char *largv[512];
	58	int largc;
	59
	60	largc = makeargs(line, largv, ARRAY_SIZE(largv));
	61	if (!largc)
	62	continue; /* blank line */
	63
	64	ret = rd_cmd(rd, largc, largv);
	65	if (ret) {
	66	pr_err("Command failed %s:%d\n", name, cmdlineno);
	67	if (!force)
	68	break;
	69	}
	70	}
	71
	72	free(line);
	73
	74	return ret;
	75	}
	76
	77	static int rd_init(struct rd rd, char filename)
74bd75c2 LR	78	{
	79	uint32_t seq;
	80	int ret;
	81
	82	rd->filename = filename;
74bd75c2	83	INIT_LIST_HEAD(&rd->dev_map_list);
1174be72	84	INIT_LIST_HEAD(&rd->filter_list);
ab6e2b7b LR	85
	86	if (rd->json_output) {
	87	rd->jw = jsonw_new(stdout);
	88	if (!rd->jw) {
	89	pr_err("Failed to create JSON writer\n");
	90	return -ENOMEM;
	91	}
	92	jsonw_pretty(rd->jw, rd->pretty_output);
	93	}
	94
74bd75c2 LR	95	rd->buff = malloc(MNL_SOCKET_BUFFER_SIZE);
	96	if (!rd->buff)
	97	return -ENOMEM;
	98
	99	rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
	100	&seq, (NLM_F_REQUEST \| NLM_F_ACK \| NLM_F_DUMP));
	101	ret = rd_send_msg(rd);
	102	if (ret)
	103	return ret;
	104
	105	return rd_recv_msg(rd, rd_dev_init_cb, rd, seq);
	106	}
	107
7109f4b2	108	static void rd_cleanup(struct rd *rd)
74bd75c2	109	{
ab6e2b7b LR	110	if (rd->json_output)
ab6e2b7b LR	111	jsonw_destroy(&rd->jw);
5fc17280	112	rd_free(rd);
74bd75c2 LR	113	}
	114
	115	int main(int argc, char **argv)
	116	{
	117	static const struct option long_options[] = {
	118	{ "version", no_argument, NULL, 'V' },
	119	{ "help", no_argument, NULL, 'h' },
ab6e2b7b LR	120	{ "json", no_argument, NULL, 'j' },
ab6e2b7b LR	121	{ "pretty", no_argument, NULL, 'p' },
74bd75c2	122	{ "details", no_argument, NULL, 'd' },
486fe5f0 LR	123	{ "force", no_argument, NULL, 'f' },
486fe5f0 LR	124	{ "batch", required_argument, NULL, 'b' },
74bd75c2 LR	125	{ NULL, 0, NULL, 0 }
74bd75c2 LR	126	};
33115275	127	bool show_driver_details = false;
486fe5f0	128	const char *batch_file = NULL;
ab6e2b7b	129	bool pretty_output = false;
74bd75c2	130	bool show_details = false;
ab6e2b7b	131	bool json_output = false;
486fe5f0	132	bool force = false;
80c0478f	133	struct rd rd = {};
33115275	134	char *filename;
74bd75c2 LR	135	int opt;
	136	int err;
	137
	138	filename = basename(argv[0]);
	139
486fe5f0	140	while ((opt = getopt_long(argc, argv, ":Vhdpjfb:",
74bd75c2 LR	141	long_options, NULL)) >= 0) {
	142	switch (opt) {
	143	case 'V':
	144	printf("%s utility, iproute2-ss%s\n",
	145	filename, SNAPSHOT);
	146	return EXIT_SUCCESS;
ab6e2b7b LR	147	case 'p':
	148	pretty_output = true;
	149	break;
74bd75c2	150	case 'd':
33115275 SW	151	if (show_details)
	152	show_driver_details = true;
	153	else
	154	show_details = true;
74bd75c2	155	break;
ab6e2b7b LR	156	case 'j':
	157	json_output = true;
	158	break;
486fe5f0 LR	159	case 'f':
	160	force = true;
	161	break;
	162	case 'b':
	163	batch_file = optarg;
	164	break;
74bd75c2 LR	165	case 'h':
	166	help(filename);
	167	return EXIT_SUCCESS;
486fe5f0 LR	168	case ':':
	169	pr_err("-%c option requires an argument\n", optopt);
	170	return EXIT_FAILURE;
74bd75c2 LR	171	default:
	172	pr_err("Unknown option.\n");
	173	help(filename);
	174	return EXIT_FAILURE;
	175	}
	176	}
	177
	178	argc -= optind;
	179	argv += optind;
	180
ab6e2b7b	181	rd.show_details = show_details;
33115275	182	rd.show_driver_details = show_driver_details;
ab6e2b7b LR	183	rd.json_output = json_output;
	184	rd.pretty_output = pretty_output;
	185
486fe5f0	186	err = rd_init(&rd, filename);
74bd75c2 LR	187	if (err)
	188	goto out;
	189
486fe5f0 LR	190	if (batch_file)
	191	err = rd_batch(&rd, batch_file, force);
	192	else
	193	err = rd_cmd(&rd, argc, argv);
74bd75c2 LR	194	out:
74bd75c2 LR	195	/* Always cleanup */
7109f4b2	196	rd_cleanup(&rd);
74bd75c2 LR	197	return err ? EXIT_FAILURE : EXIT_SUCCESS;
74bd75c2 LR	198	}