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/*
* eee.c - netlink implementation of eee commands
*
* Implementation of "ethtool --show-eee <dev>" and
* "ethtool --set-eee <dev> ..."
*/
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include "../internal.h"
#include "../common.h"
#include "netlink.h"
#include "bitset.h"
#include "parser.h"
#include "../json_writer.h"
/* EEE_GET */
int eee_reply_cb(const struct nlmsghdr *nlhdr, void *data)
{
const struct nlattr *tb[ETHTOOL_A_EEE_MAX + 1] = {};
DECLARE_ATTR_TB_INFO(tb);
bool enabled, active, tx_lpi_enabled, status_support;
struct nl_context *nlctx = data;
bool silent;
int err_ret;
int ret;
silent = nlctx->is_dump || nlctx->is_monitor || is_json_context();
err_ret = silent ? MNL_CB_OK : MNL_CB_ERROR;
ret = mnl_attr_parse(nlhdr, GENL_HDRLEN, attr_cb, &tb_info);
if (ret < 0)
return err_ret;
nlctx->devname = get_dev_name(tb[ETHTOOL_A_EEE_HEADER]);
if (!dev_ok(nlctx))
return err_ret;
if (!tb[ETHTOOL_A_EEE_MODES_OURS] ||
!tb[ETHTOOL_A_EEE_ACTIVE] || !tb[ETHTOOL_A_EEE_ENABLED] ||
!tb[ETHTOOL_A_EEE_TX_LPI_ENABLED] ||
!tb[ETHTOOL_A_EEE_TX_LPI_TIMER]) {
fprintf(stderr, "Malformed response from kernel\n");
return err_ret;
}
active = mnl_attr_get_u8(tb[ETHTOOL_A_EEE_ACTIVE]);
enabled = mnl_attr_get_u8(tb[ETHTOOL_A_EEE_ENABLED]);
tx_lpi_enabled = mnl_attr_get_u8(tb[ETHTOOL_A_EEE_TX_LPI_ENABLED]);
status_support = bitset_is_empty(tb[ETHTOOL_A_EEE_MODES_OURS], true, &ret);
if (silent)
putchar('\n');
print_string(PRINT_ANY, "ifname", "EEE settings for %s:\n", nlctx->devname);
print_string(PRINT_FP, NULL, "\tEEE status: ", NULL);
if (status_support) {
print_string(PRINT_ANY, "status", "%s\n", "not supported");
return MNL_CB_OK;
}
if (!enabled)
print_string(PRINT_ANY, "status", "%s\n", "disabled");
else
print_string(PRINT_ANY, "status", "enabled - %s\n", active ? "active" : "inactive");
print_string(PRINT_FP, NULL, "\tTx LPI: ", NULL);
if (tx_lpi_enabled)
print_uint(PRINT_ANY, "tx-lpi", "%u (us)\n",
mnl_attr_get_u32(tb[ETHTOOL_A_EEE_TX_LPI_TIMER]));
else
print_string(PRINT_FP, NULL, "%s\n", "disabled");
ret = dump_link_modes(nlctx, tb[ETHTOOL_A_EEE_MODES_OURS], true,
LM_CLASS_REAL,
"Supported EEE link modes: ", NULL, "\n",
"Not reported", "supported-eee-link-modes");
if (ret < 0)
return err_ret;
ret = dump_link_modes(nlctx, tb[ETHTOOL_A_EEE_MODES_OURS], false,
LM_CLASS_REAL,
"Advertised EEE link modes: ", NULL, "\n",
"Not reported", "advertised-eee-link-modes");
if (ret < 0)
return err_ret;
ret = dump_link_modes(nlctx, tb[ETHTOOL_A_EEE_MODES_PEER], false,
LM_CLASS_REAL,
"Link partner advertised EEE link modes: ", NULL,
"\n", "Not reported", "link-partner-advertised-eee-link-modes");
if (ret < 0)
return err_ret;
return MNL_CB_OK;
}
int nl_geee(struct cmd_context *ctx)
{
struct nl_context *nlctx = ctx->nlctx;
struct nl_socket *nlsk = nlctx->ethnl_socket;
int ret;
if (netlink_cmd_check(ctx, ETHTOOL_MSG_EEE_GET, true))
return -EOPNOTSUPP;
if (ctx->argc > 0) {
fprintf(stderr, "ethtool: unexpected parameter '%s'\n",
*ctx->argp);
return 1;
}
new_json_obj(ctx->json);
open_json_object(NULL);
ret = nlsock_prep_get_request(nlsk, ETHTOOL_MSG_EEE_GET,
ETHTOOL_A_EEE_HEADER, 0);
if (ret < 0)
goto out;
ret = nlsock_send_get_request(nlsk, eee_reply_cb);
out:
close_json_object();
delete_json_obj();
return ret;
}
/* EEE_SET */
static const struct bitset_parser_data advertise_parser_data = {
.no_mask = false,
.force_hex = true,
};
static const struct param_parser seee_params[] = {
{
.arg = "advertise",
.type = ETHTOOL_A_EEE_MODES_OURS,
.handler = nl_parse_bitset,
.handler_data = &advertise_parser_data,
.min_argc = 1,
},
{
.arg = "tx-lpi",
.type = ETHTOOL_A_EEE_TX_LPI_ENABLED,
.handler = nl_parse_u8bool,
.min_argc = 1,
},
{
.arg = "tx-timer",
.type = ETHTOOL_A_EEE_TX_LPI_TIMER,
.handler = nl_parse_direct_u32,
.min_argc = 1,
},
{
.arg = "eee",
.type = ETHTOOL_A_EEE_ENABLED,
.handler = nl_parse_u8bool,
.min_argc = 1,
},
{}
};
int nl_seee(struct cmd_context *ctx)
{
struct nl_context *nlctx = ctx->nlctx;
struct nl_msg_buff *msgbuff;
struct nl_socket *nlsk;
int ret;
if (netlink_cmd_check(ctx, ETHTOOL_MSG_EEE_SET, false))
return -EOPNOTSUPP;
if (!ctx->argc) {
fprintf(stderr, "ethtool (--set-eee): parameters missing\n");
return 1;
}
nlctx->cmd = "--set-eee";
nlctx->argp = ctx->argp;
nlctx->argc = ctx->argc;
nlctx->devname = ctx->devname;
nlsk = nlctx->ethnl_socket;
msgbuff = &nlsk->msgbuff;
ret = msg_init(nlctx, msgbuff, ETHTOOL_MSG_EEE_SET,
NLM_F_REQUEST | NLM_F_ACK);
if (ret < 0)
return 2;
if (ethnla_fill_header(msgbuff, ETHTOOL_A_EEE_HEADER,
ctx->devname, 0))
return -EMSGSIZE;
ret = nl_parser(nlctx, seee_params, NULL, PARSER_GROUP_NONE, NULL);
if (ret < 0)
return 1;
ret = nlsock_sendmsg(nlsk, NULL);
if (ret < 0)
return 76;
ret = nlsock_process_reply(nlsk, nomsg_reply_cb, nlctx);
if (ret == 0)
return 0;
else
return nlctx->exit_code ?: 76;
}
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