Adding upstream version 1:6.7.upstream/1%6.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 179 insertions, 0 deletions

diff --git a/netlink/module.c b/netlink/module.c
new file mode 100644
index 0000000..54aa6d0
--- /dev/null
+++ b/netlink/module.c
@@ -0,0 +1,179 @@
+/*
+ * module.c - netlink implementation of module commands
+ *
+ * Implementation of "ethtool --show-module <dev>" and
+ * "ethtool --set-module <dev> ..."
+ */
+
+#include <errno.h>
+#include <ctype.h>
+#include <inttypes.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "../internal.h"
+#include "../common.h"
+#include "netlink.h"
+#include "parser.h"
+
+/* MODULE_GET */
+
+static const char *module_power_mode_policy_name(u8 val)
+{
+	switch (val) {
+	case ETHTOOL_MODULE_POWER_MODE_POLICY_HIGH:
+		return "high";
+	case ETHTOOL_MODULE_POWER_MODE_POLICY_AUTO:
+		return "auto";
+	default:
+		return "unknown";
+	}
+}
+
+static const char *module_power_mode_name(u8 val)
+{
+	switch (val) {
+	case ETHTOOL_MODULE_POWER_MODE_LOW:
+		return "low";
+	case ETHTOOL_MODULE_POWER_MODE_HIGH:
+		return "high";
+	default:
+		return "unknown";
+	}
+}
+
+int module_reply_cb(const struct nlmsghdr *nlhdr, void *data)
+{
+	const struct nlattr *tb[ETHTOOL_A_MODULE_MAX + 1] = {};
+	struct nl_context *nlctx = data;
+	DECLARE_ATTR_TB_INFO(tb);
+	bool silent;
+	int err_ret;
+	int ret;
+
+	silent = nlctx->is_dump || nlctx->is_monitor;
+	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_MODULE_HEADER]);
+	if (!dev_ok(nlctx))
+		return err_ret;
+
+	if (silent)
+		print_nl();
+
+	open_json_object(NULL);
+
+	print_string(PRINT_ANY, "ifname", "Module parameters for %s:\n",
+		     nlctx->devname);
+
+	if (tb[ETHTOOL_A_MODULE_POWER_MODE_POLICY]) {
+		u8 val;
+
+		val = mnl_attr_get_u8(tb[ETHTOOL_A_MODULE_POWER_MODE_POLICY]);
+		print_string(PRINT_ANY, "power-mode-policy",
+			     "power-mode-policy: %s\n",
+			     module_power_mode_policy_name(val));
+	}
+
+	if (tb[ETHTOOL_A_MODULE_POWER_MODE]) {
+		u8 val;
+
+		val = mnl_attr_get_u8(tb[ETHTOOL_A_MODULE_POWER_MODE]);
+		print_string(PRINT_ANY, "power-mode",
+			     "power-mode: %s\n", module_power_mode_name(val));
+	}
+
+	close_json_object();
+
+	return MNL_CB_OK;
+}
+
+int nl_gmodule(struct cmd_context *ctx)
+{
+	struct nl_context *nlctx = ctx->nlctx;
+	struct nl_socket *nlsk;
+	int ret;
+
+	if (netlink_cmd_check(ctx, ETHTOOL_MSG_MODULE_GET, true))
+		return -EOPNOTSUPP;
+	if (ctx->argc > 0) {
+		fprintf(stderr, "ethtool: unexpected parameter '%s'\n",
+			*ctx->argp);
+		return 1;
+	}
+
+	nlsk = nlctx->ethnl_socket;
+	ret = nlsock_prep_get_request(nlsk, ETHTOOL_MSG_MODULE_GET,
+				      ETHTOOL_A_MODULE_HEADER, 0);
+	if (ret < 0)
+		return ret;
+
+	new_json_obj(ctx->json);
+	ret = nlsock_send_get_request(nlsk, module_reply_cb);
+	delete_json_obj();
+	return ret;
+}
+
+/* MODULE_SET */
+
+static const struct lookup_entry_u8 power_mode_policy_values[] = {
+	{ .arg = "high",	.val = ETHTOOL_MODULE_POWER_MODE_POLICY_HIGH },
+	{ .arg = "auto",	.val = ETHTOOL_MODULE_POWER_MODE_POLICY_AUTO },
+	{}
+};
+
+static const struct param_parser smodule_params[] = {
+	{
+		.arg		= "power-mode-policy",
+		.type		= ETHTOOL_A_MODULE_POWER_MODE_POLICY,
+		.handler	= nl_parse_lookup_u8,
+		.handler_data	= power_mode_policy_values,
+		.min_argc	= 1,
+	},
+	{}
+};
+
+int nl_smodule(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_MODULE_SET, false))
+		return -EOPNOTSUPP;
+	if (!ctx->argc) {
+		fprintf(stderr, "ethtool (--set-module): parameters missing\n");
+		return 1;
+	}
+
+	nlctx->cmd = "--set-module";
+	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_MODULE_SET,
+		       NLM_F_REQUEST | NLM_F_ACK);
+	if (ret < 0)
+		return 2;
+	if (ethnla_fill_header(msgbuff, ETHTOOL_A_MODULE_HEADER,
+			       ctx->devname, 0))
+		return -EMSGSIZE;
+
+	ret = nl_parser(nlctx, smodule_params, NULL, PARSER_GROUP_NONE, NULL);
+	if (ret < 0)
+		return 1;
+
+	ret = nlsock_sendmsg(nlsk, NULL);
+	if (ret < 0)
+		return 83;
+	ret = nlsock_process_reply(nlsk, nomsg_reply_cb, nlctx);
+	if (ret == 0)
+		return 0;
+	else
+		return nlctx->exit_code ?: 83;
+}