github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 10:04:04 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

tools: ynl: generate code for rt-route and add a sample

Browse Source 
YNL C can now generate code for simple classic netlink families.
Include rt-route in the Makefile for generation and add a sample.

    $ ./tools/net/ynl/samples/rt-route
    oif: wlp0s20f3        gateway: 192.168.1.1
    oif: wlp0s20f3        dst: 192.168.1.0/24
    oif: vpn0             dst: fe80::/64
    oif: wlp0s20f3        dst: fe80::/64
    oif: wlp0s20f3        gateway: fe80::200:5eff:fe00:201

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250410014658.782120-14-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2025-04-09 18:46:58 -07:00
parent 29d34a4d78
commit 54d790856c
4 changed files with 83 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
tools/net/ynl/Makefile.deps
View File

@ -30,4 +30,5 @@ CFLAGS_ovs_datapath:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
CFLAGS_ovs_flow:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
CFLAGS_ovs_vport:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h)
CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
CFLAGS_rt-route:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h)
CFLAGS_tcp_metrics:=$(call get_hdr_inc,_LINUX_TCP_METRICS_H,tcp_metrics.h)

2
tools/net/ynl/generated/Makefile
View File

@ -25,7 +25,7 @@ SPECS_DIR:=../../../../Documentation/netlink/specs
GENS_PATHS=$(shell grep -nrI --files-without-match \
'protocol: netlink' \
$(SPECS_DIR))
GENS=$(patsubst $(SPECS_DIR)/%.yaml,%,${GENS_PATHS}) rt-addr
GENS=$(patsubst $(SPECS_DIR)/%.yaml,%,${GENS_PATHS}) rt-addr rt-route
SRCS=$(patsubst %,%-user.c,${GENS})
HDRS=$(patsubst %,%-user.h,${GENS})
OBJS=$(patsubst %,%-user.o,${GENS})

1
tools/net/ynl/samples/.gitignore vendored
View File

@ -4,3 +4,4 @@ netdev
ovs
page-pool
rt-addr
rt-route

80
tools/net/ynl/samples/rt-route.c Normal file
View File

@ -0,0 +1,80 @@
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <string.h>
#include <ynl.h>
#include <arpa/inet.h>
#include <net/if.h>
#include "rt-route-user.h"
static void rt_route_print(struct rt_route_getroute_rsp *r)
{
char ifname[IF_NAMESIZE];
char route_str[64];
const char *route;
const char *name;
/* Ignore local */
if (r->_hdr.rtm_table == RT_TABLE_LOCAL)
return;
if (r->_present.oif) {
name = if_indextoname(r->oif, ifname);
if (name)
printf("oif: %-16s ", name);
}
if (r->_present.dst_len) {
route = inet_ntop(r->_hdr.rtm_family, r->dst,
route_str, sizeof(route_str));
printf("dst: %s/%d", route, r->_hdr.rtm_dst_len);
}
if (r->_present.gateway_len) {
route = inet_ntop(r->_hdr.rtm_family, r->gateway,
route_str, sizeof(route_str));
printf("gateway: %s ", route);
}
printf("\n");
}
int main(int argc, char **argv)
{
struct rt_route_getroute_req_dump *req;
struct rt_route_getroute_list *rsp;
struct ynl_error yerr;
struct ynl_sock *ys;
ys = ynl_sock_create(&ynl_rt_route_family, &yerr);
if (!ys) {
fprintf(stderr, "YNL: %s\n", yerr.msg);
return 1;
}
req = rt_route_getroute_req_dump_alloc();
if (!req)
goto err_destroy;
rsp = rt_route_getroute_dump(ys, req);
rt_route_getroute_req_dump_free(req);
if (!rsp)
goto err_close;
if (ynl_dump_empty(rsp))
fprintf(stderr, "Error: no routeesses reported\n");
ynl_dump_foreach(rsp, route)
rt_route_print(route);
rt_route_getroute_list_free(rsp);
ynl_sock_destroy(ys);
return 0;
err_close:
fprintf(stderr, "YNL: %s\n", ys->err.msg);
err_destroy:
ynl_sock_destroy(ys);
return 2;
}