Commit ded5c1a1 authored by Jakub Kicinski's avatar Jakub Kicinski
Browse files

Merge branch 'tools-ynl-gen-code-gen-improvements-before-ethtool' 

Jakub Kicinski says:

====================
tools: ynl-gen: code gen improvements before ethtool

I was going to post ethtool but I couldn't stand the ugliness
of the if conditions which were previously generated.
So I cleaned that up and improved a number of other things
ethtool will benefit from.
====================

Link: https://lore.kernel.org/r/20230608211200.1247213-1-kuba@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parents 7ec5d48f 76abff37

tools/net/ynl/generated/devlink-user.c

+39 −39
Original line number Diff line number Diff line
@@ -4,13 +4,11 @@ 
/* YNL-GEN user source */



#include <stdlib.h>

#include <string.h>

#include "devlink-user.h"

#include "ynl.h"

#include <linux/devlink.h>



#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <libmnl/libmnl.h>

#include <linux/genetlink.h>
@@ -128,7 +126,9 @@ int devlink_dl_info_version_parse(struct ynl_parse_arg *yarg, 
	const struct nlattr *attr;



	mnl_attr_for_each_nested(attr, nested) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_INFO_VERSION_NAME) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_INFO_VERSION_NAME) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -139,8 +139,7 @@ int devlink_dl_info_version_parse(struct ynl_parse_arg *yarg, 
			dst->info_version_name = malloc(len + 1);

			memcpy(dst->info_version_name, mnl_attr_get_str(attr), len);

			dst->info_version_name[len] = 0;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_INFO_VERSION_VALUE) {

		} else if (type == DEVLINK_ATTR_INFO_VERSION_VALUE) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -169,13 +168,14 @@ int devlink_dl_reload_stats_entry_parse(struct ynl_parse_arg *yarg, 
	const struct nlattr *attr;



	mnl_attr_for_each_nested(attr, nested) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_STATS_LIMIT) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_RELOAD_STATS_LIMIT) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.reload_stats_limit = 1;

			dst->reload_stats_limit = mnl_attr_get_u8(attr);

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_STATS_VALUE) {

		} else if (type == DEVLINK_ATTR_RELOAD_STATS_VALUE) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.reload_stats_value = 1;
@@ -210,7 +210,9 @@ int devlink_dl_reload_act_stats_parse(struct ynl_parse_arg *yarg, 
		return ynl_error_parse(yarg, "attribute already present (dl-reload-act-stats.reload-stats-entry)");



	mnl_attr_for_each_nested(attr, nested) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_STATS_ENTRY) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_RELOAD_STATS_ENTRY) {

			n_reload_stats_entry++;

		}

	}
@@ -257,13 +259,14 @@ int devlink_dl_reload_act_info_parse(struct ynl_parse_arg *yarg, 
		return ynl_error_parse(yarg, "attribute already present (dl-reload-act-info.reload-action-stats)");



	mnl_attr_for_each_nested(attr, nested) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_ACTION) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_RELOAD_ACTION) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.reload_action = 1;

			dst->reload_action = mnl_attr_get_u8(attr);

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_ACTION_STATS) {

		} else if (type == DEVLINK_ATTR_RELOAD_ACTION_STATS) {

			n_reload_action_stats++;

		}

	}
@@ -310,7 +313,9 @@ int devlink_dl_reload_stats_parse(struct ynl_parse_arg *yarg, 
		return ynl_error_parse(yarg, "attribute already present (dl-reload-stats.reload-action-info)");



	mnl_attr_for_each_nested(attr, nested) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_ACTION_INFO) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_RELOAD_ACTION_INFO) {

			n_reload_action_info++;

		}

	}
@@ -349,7 +354,9 @@ int devlink_dl_dev_stats_parse(struct ynl_parse_arg *yarg, 
	parg.ys = yarg->ys;



	mnl_attr_for_each_nested(attr, nested) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_STATS) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_RELOAD_STATS) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.reload_stats = 1;
@@ -358,8 +365,7 @@ int devlink_dl_dev_stats_parse(struct ynl_parse_arg *yarg, 
			parg.data = &dst->reload_stats;

			if (devlink_dl_reload_stats_parse(&parg, attr))

				return MNL_CB_ERROR;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_REMOTE_RELOAD_STATS) {

		} else if (type == DEVLINK_ATTR_REMOTE_RELOAD_STATS) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.remote_reload_stats = 1;
@@ -402,7 +408,9 @@ int devlink_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
	parg.ys = yarg->ys;



	mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_BUS_NAME) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_BUS_NAME) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -413,8 +421,7 @@ int devlink_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->bus_name = malloc(len + 1);

			memcpy(dst->bus_name, mnl_attr_get_str(attr), len);

			dst->bus_name[len] = 0;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_DEV_NAME) {

		} else if (type == DEVLINK_ATTR_DEV_NAME) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -425,20 +432,17 @@ int devlink_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->dev_name = malloc(len + 1);

			memcpy(dst->dev_name, mnl_attr_get_str(attr), len);

			dst->dev_name[len] = 0;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_FAILED) {

		} else if (type == DEVLINK_ATTR_RELOAD_FAILED) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.reload_failed = 1;

			dst->reload_failed = mnl_attr_get_u8(attr);

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_RELOAD_ACTION) {

		} else if (type == DEVLINK_ATTR_RELOAD_ACTION) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.reload_action = 1;

			dst->reload_action = mnl_attr_get_u8(attr);

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_DEV_STATS) {

		} else if (type == DEVLINK_ATTR_DEV_STATS) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.dev_stats = 1;
@@ -578,7 +582,9 @@ int devlink_info_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
		return ynl_error_parse(yarg, "attribute already present (devlink.info-version-stored)");



	mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {

		if (mnl_attr_get_type(attr) == DEVLINK_ATTR_BUS_NAME) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == DEVLINK_ATTR_BUS_NAME) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -589,8 +595,7 @@ int devlink_info_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->bus_name = malloc(len + 1);

			memcpy(dst->bus_name, mnl_attr_get_str(attr), len);

			dst->bus_name[len] = 0;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_DEV_NAME) {

		} else if (type == DEVLINK_ATTR_DEV_NAME) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -601,8 +606,7 @@ int devlink_info_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->dev_name = malloc(len + 1);

			memcpy(dst->dev_name, mnl_attr_get_str(attr), len);

			dst->dev_name[len] = 0;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_INFO_DRIVER_NAME) {

		} else if (type == DEVLINK_ATTR_INFO_DRIVER_NAME) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -613,8 +617,7 @@ int devlink_info_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->info_driver_name = malloc(len + 1);

			memcpy(dst->info_driver_name, mnl_attr_get_str(attr), len);

			dst->info_driver_name[len] = 0;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_INFO_SERIAL_NUMBER) {

		} else if (type == DEVLINK_ATTR_INFO_SERIAL_NUMBER) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -625,14 +628,11 @@ int devlink_info_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->info_serial_number = malloc(len + 1);

			memcpy(dst->info_serial_number, mnl_attr_get_str(attr), len);

			dst->info_serial_number[len] = 0;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_INFO_VERSION_FIXED) {

		} else if (type == DEVLINK_ATTR_INFO_VERSION_FIXED) {

			n_info_version_fixed++;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_INFO_VERSION_RUNNING) {

		} else if (type == DEVLINK_ATTR_INFO_VERSION_RUNNING) {

			n_info_version_running++;

		}

		else if (mnl_attr_get_type(attr) == DEVLINK_ATTR_INFO_VERSION_STORED) {

		} else if (type == DEVLINK_ATTR_INFO_VERSION_STORED) {

			n_info_version_stored++;

		}

	}

tools/net/ynl/generated/fou-user.c

+13 −22
Original line number Diff line number Diff line
@@ -4,13 +4,11 @@ 
/* YNL-GEN user source */



#include <stdlib.h>

#include <string.h>

#include "fou-user.h"

#include "ynl.h"

#include <linux/fou.h>



#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <libmnl/libmnl.h>

#include <linux/genetlink.h>
@@ -174,42 +172,38 @@ int fou_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
	dst = yarg->data;



	mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {

		if (mnl_attr_get_type(attr) == FOU_ATTR_PORT) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == FOU_ATTR_PORT) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.port = 1;

			dst->port = mnl_attr_get_u16(attr);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_IPPROTO) {

		} else if (type == FOU_ATTR_IPPROTO) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.ipproto = 1;

			dst->ipproto = mnl_attr_get_u8(attr);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_TYPE) {

		} else if (type == FOU_ATTR_TYPE) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.type = 1;

			dst->type = mnl_attr_get_u8(attr);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_REMCSUM_NOPARTIAL) {

		} else if (type == FOU_ATTR_REMCSUM_NOPARTIAL) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.remcsum_nopartial = 1;

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_LOCAL_V4) {

		} else if (type == FOU_ATTR_LOCAL_V4) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.local_v4 = 1;

			dst->local_v4 = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_PEER_V4) {

		} else if (type == FOU_ATTR_PEER_V4) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.peer_v4 = 1;

			dst->peer_v4 = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_LOCAL_V6) {

		} else if (type == FOU_ATTR_LOCAL_V6) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -219,8 +213,7 @@ int fou_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->_present.local_v6_len = len;

			dst->local_v6 = malloc(len);

			memcpy(dst->local_v6, mnl_attr_get_payload(attr), len);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_PEER_V6) {

		} else if (type == FOU_ATTR_PEER_V6) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -230,14 +223,12 @@ int fou_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
			dst->_present.peer_v6_len = len;

			dst->peer_v6 = malloc(len);

			memcpy(dst->peer_v6, mnl_attr_get_payload(attr), len);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_PEER_PORT) {

		} else if (type == FOU_ATTR_PEER_PORT) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.peer_port = 1;

			dst->peer_port = mnl_attr_get_u16(attr);

		}

		else if (mnl_attr_get_type(attr) == FOU_ATTR_IFINDEX) {

		} else if (type == FOU_ATTR_IFINDEX) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.ifindex = 1;

tools/net/ynl/generated/handshake-user.c

+14 −64
Original line number Diff line number Diff line
@@ -4,13 +4,11 @@ 
/* YNL-GEN user source */



#include <stdlib.h>

#include <string.h>

#include "handshake-user.h"

#include "ynl.h"

#include <linux/handshake.h>



#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <libmnl/libmnl.h>

#include <linux/genetlink.h>
@@ -118,13 +116,14 @@ int handshake_x509_parse(struct ynl_parse_arg *yarg, 
	const struct nlattr *attr;



	mnl_attr_for_each_nested(attr, nested) {

		if (mnl_attr_get_type(attr) == HANDSHAKE_A_X509_CERT) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == HANDSHAKE_A_X509_CERT) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.cert = 1;

			dst->cert = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == HANDSHAKE_A_X509_PRIVKEY) {

		} else if (type == HANDSHAKE_A_X509_PRIVKEY) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.privkey = 1;
@@ -173,37 +172,33 @@ int handshake_accept_rsp_parse(const struct nlmsghdr *nlh, void *data) 
		return ynl_error_parse(yarg, "attribute already present (accept.peer-identity)");



	mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {

		if (mnl_attr_get_type(attr) == HANDSHAKE_A_ACCEPT_SOCKFD) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == HANDSHAKE_A_ACCEPT_SOCKFD) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.sockfd = 1;

			dst->sockfd = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == HANDSHAKE_A_ACCEPT_MESSAGE_TYPE) {

		} else if (type == HANDSHAKE_A_ACCEPT_MESSAGE_TYPE) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.message_type = 1;

			dst->message_type = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == HANDSHAKE_A_ACCEPT_TIMEOUT) {

		} else if (type == HANDSHAKE_A_ACCEPT_TIMEOUT) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.timeout = 1;

			dst->timeout = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == HANDSHAKE_A_ACCEPT_AUTH_MODE) {

		} else if (type == HANDSHAKE_A_ACCEPT_AUTH_MODE) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.auth_mode = 1;

			dst->auth_mode = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == HANDSHAKE_A_ACCEPT_PEER_IDENTITY) {

		} else if (type == HANDSHAKE_A_ACCEPT_PEER_IDENTITY) {

			n_peer_identity++;

		}

		else if (mnl_attr_get_type(attr) == HANDSHAKE_A_ACCEPT_CERTIFICATE) {

		} else if (type == HANDSHAKE_A_ACCEPT_CERTIFICATE) {

			n_certificate++;

		}

		else if (mnl_attr_get_type(attr) == HANDSHAKE_A_ACCEPT_PEERNAME) {

		} else if (type == HANDSHAKE_A_ACCEPT_PEERNAME) {

			unsigned int len;



			if (ynl_attr_validate(yarg, attr))
@@ -320,51 +315,6 @@ int handshake_done(struct ynl_sock *ys, struct handshake_done_req *req) 
	return 0;

}



/* --------------- Common notification parsing --------------- */

struct ynl_ntf_base_type *handshake_ntf_parse(struct ynl_sock *ys)

{

	struct ynl_parse_arg yarg = { .ys = ys, };

	struct ynl_ntf_base_type *rsp;

	struct genlmsghdr *genlh;

	struct nlmsghdr *nlh;

	mnl_cb_t parse;

	int len, err;



	len = mnl_socket_recvfrom(ys->sock, ys->rx_buf, MNL_SOCKET_BUFFER_SIZE);

	if (len < (ssize_t)(sizeof(*nlh) + sizeof(*genlh)))

		return NULL;



	nlh = (struct nlmsghdr *)ys->rx_buf;

	genlh = mnl_nlmsg_get_payload(nlh);



	switch (genlh->cmd) {

	case HANDSHAKE_CMD_READY:

		rsp = calloc(1, sizeof(struct handshake_accept_ntf));

		parse = handshake_accept_rsp_parse;

		yarg.rsp_policy = &handshake_accept_nest;

		rsp->free = (void *)handshake_accept_ntf_free;

		break;

	default:

		ynl_error_unknown_notification(ys, genlh->cmd);

		return NULL;

	}



	yarg.data = rsp->data;



	err = mnl_cb_run2(ys->rx_buf, len, 0, 0, parse, &yarg,

			 ynl_cb_array, NLMSG_MIN_TYPE);

	if (err < 0)

		goto err_free;



	rsp->family = nlh->nlmsg_type;

	rsp->cmd = genlh->cmd;

	return rsp;



err_free:

	free(rsp);

	return NULL;

}



static const struct ynl_ntf_info handshake_ntf_info[] =  {

	[HANDSHAKE_CMD_READY] =  {

		.alloc_sz	= sizeof(struct handshake_accept_ntf),

tools/net/ynl/generated/handshake-user.h

+0 −3
Original line number Diff line number Diff line
@@ -142,7 +142,4 @@ __handshake_done_req_set_remote_auth(struct handshake_done_req *req, 
 */

int handshake_done(struct ynl_sock *ys, struct handshake_done_req *req);



/* --------------- Common notification parsing --------------- */

struct ynl_ntf_base_type *handshake_ntf_parse(struct ynl_sock *ys);



#endif /* _LINUX_HANDSHAKE_GEN_H */

tools/net/ynl/generated/netdev-user.c

+5 −53
Original line number Diff line number Diff line
@@ -4,13 +4,11 @@ 
/* YNL-GEN user source */



#include <stdlib.h>

#include <string.h>

#include "netdev-user.h"

#include "ynl.h"

#include <linux/netdev.h>



#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <libmnl/libmnl.h>

#include <linux/genetlink.h>
@@ -81,13 +79,14 @@ int netdev_dev_get_rsp_parse(const struct nlmsghdr *nlh, void *data) 
	dst = yarg->data;



	mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {

		if (mnl_attr_get_type(attr) == NETDEV_A_DEV_IFINDEX) {

		unsigned int type = mnl_attr_get_type(attr);



		if (type == NETDEV_A_DEV_IFINDEX) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.ifindex = 1;

			dst->ifindex = mnl_attr_get_u32(attr);

		}

		else if (mnl_attr_get_type(attr) == NETDEV_A_DEV_XDP_FEATURES) {

		} else if (type == NETDEV_A_DEV_XDP_FEATURES) {

			if (ynl_attr_validate(yarg, attr))

				return MNL_CB_ERROR;

			dst->_present.xdp_features = 1;
@@ -173,53 +172,6 @@ void netdev_dev_get_ntf_free(struct netdev_dev_get_ntf *rsp) 
	free(rsp);

}



/* --------------- Common notification parsing --------------- */

struct ynl_ntf_base_type *netdev_ntf_parse(struct ynl_sock *ys)

{

	struct ynl_parse_arg yarg = { .ys = ys, };

	struct ynl_ntf_base_type *rsp;

	struct genlmsghdr *genlh;

	struct nlmsghdr *nlh;

	mnl_cb_t parse;

	int len, err;



	len = mnl_socket_recvfrom(ys->sock, ys->rx_buf, MNL_SOCKET_BUFFER_SIZE);

	if (len < (ssize_t)(sizeof(*nlh) + sizeof(*genlh)))

		return NULL;



	nlh = (struct nlmsghdr *)ys->rx_buf;

	genlh = mnl_nlmsg_get_payload(nlh);



	switch (genlh->cmd) {

	case NETDEV_CMD_DEV_ADD_NTF:

	case NETDEV_CMD_DEV_DEL_NTF:

	case NETDEV_CMD_DEV_CHANGE_NTF:

		rsp = calloc(1, sizeof(struct netdev_dev_get_ntf));

		parse = netdev_dev_get_rsp_parse;

		yarg.rsp_policy = &netdev_dev_nest;

		rsp->free = (void *)netdev_dev_get_ntf_free;

		break;

	default:

		ynl_error_unknown_notification(ys, genlh->cmd);

		return NULL;

	}



	yarg.data = rsp->data;



	err = mnl_cb_run2(ys->rx_buf, len, 0, 0, parse, &yarg,

			 ynl_cb_array, NLMSG_MIN_TYPE);

	if (err < 0)

		goto err_free;



	rsp->family = nlh->nlmsg_type;

	rsp->cmd = genlh->cmd;

	return rsp;



err_free:

	free(rsp);

	return NULL;

}



static const struct ynl_ntf_info netdev_ntf_info[] =  {

	[NETDEV_CMD_DEV_ADD_NTF] =  {

		.alloc_sz	= sizeof(struct netdev_dev_get_ntf),