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authorXu Du <xudu@redhat.com>2026-01-21 18:04:57 +0800
committerJakub Kicinski <kuba@kernel.org>2026-01-23 11:43:28 -0800
commit82cfdcfa201057861ec8a60ca9354d2c4c67bd68 (patch)
treec4caa45d5ab8db748a4920d71a8ba2a2d9387837 /tools
parenta942fcd72e9736a0c49b60160f29dc5bb01d6f89 (diff)
selftest: tun: Refactor tun_delete to use tuntap_helpers
The previous patch introduced common tuntap helpers to simplify tun test code. This patch refactors the tun_delete function to use these new helpers. Signed-off-by: Xu Du <xudu@redhat.com> Link: https://patch.msgid.link/ecc7c0c2d75d87cb814e97579e731650339703ab.1768979440.git.xudu@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/net/Makefile16
-rw-r--r--tools/testing/selftests/net/tun.c39
2 files changed, 15 insertions, 40 deletions
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 33f56fcbde09..afdea6d95bde 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -183,7 +183,6 @@ TEST_GEN_PROGS := \
tap \
tcp_port_share \
tls \
- tun \
# end of TEST_GEN_PROGS
TEST_FILES := \
@@ -195,7 +194,11 @@ TEST_FILES := \
# YNL files, must be before "include ..lib.mk"
YNL_GEN_FILES := busy_poller
-YNL_GEN_PROGS := netlink-dumps
+YNL_GEN_PROGS := \
+ netlink-dumps \
+ tun \
+# end of YNL_GEN_PROGS
+
TEST_GEN_FILES += $(YNL_GEN_FILES)
TEST_GEN_PROGS += $(YNL_GEN_PROGS)
@@ -206,7 +209,14 @@ TEST_INCLUDES := forwarding/lib.sh
include ../lib.mk
# YNL build
-YNL_GENS := netdev
+YNL_GENS := \
+ netdev \
+ rt-addr \
+ rt-link \
+ rt-neigh \
+ rt-route \
+# end of YNL_GENS
+
include ynl.mk
$(OUTPUT)/epoll_busy_poll: LDLIBS += -lcap
diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c
index 128b0a5327d4..d9030bdd2e06 100644
--- a/tools/testing/selftests/net/tun.c
+++ b/tools/testing/selftests/net/tun.c
@@ -8,14 +8,12 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include <linux/if.h>
#include <linux/if_tun.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include "kselftest_harness.h"
+#include "tuntap_helpers.h"
static int tun_attach(int fd, char *dev)
{
@@ -66,40 +64,7 @@ static int tun_alloc(char *dev)
static int tun_delete(char *dev)
{
- struct {
- struct nlmsghdr nh;
- struct ifinfomsg ifm;
- unsigned char data[64];
- } req;
- struct rtattr *rta;
- int ret, rtnl;
-
- rtnl = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
- if (rtnl < 0) {
- fprintf(stderr, "can't open rtnl: %s\n", strerror(errno));
- return 1;
- }
-
- memset(&req, 0, sizeof(req));
- req.nh.nlmsg_len = NLMSG_ALIGN(NLMSG_LENGTH(sizeof(req.ifm)));
- req.nh.nlmsg_flags = NLM_F_REQUEST;
- req.nh.nlmsg_type = RTM_DELLINK;
-
- req.ifm.ifi_family = AF_UNSPEC;
-
- rta = (struct rtattr *)(((char *)&req) + NLMSG_ALIGN(req.nh.nlmsg_len));
- rta->rta_type = IFLA_IFNAME;
- rta->rta_len = RTA_LENGTH(IFNAMSIZ);
- req.nh.nlmsg_len += rta->rta_len;
- memcpy(RTA_DATA(rta), dev, IFNAMSIZ);
-
- ret = send(rtnl, &req, req.nh.nlmsg_len, 0);
- if (ret < 0)
- fprintf(stderr, "can't send: %s\n", strerror(errno));
- ret = (unsigned int)ret != req.nh.nlmsg_len;
-
- close(rtnl);
- return ret;
+ return ip_link_del(dev);
}
FIXTURE(tun)