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Message-ID: <20240829204922.1674865-2-vadfed@meta.com>
Date: Thu, 29 Aug 2024 13:49:22 -0700
From: Vadim Fedorenko <vadfed@...a.com>
To: Vadim Fedorenko <vadim.fedorenko@...ux.dev>,
Willem de Bruijn
<willemb@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>,
David Ahern <dsahern@...nel.org>
CC: Vadim Fedorenko <vadfed@...a.com>, <netdev@...r.kernel.org>
Subject: [PATCH net-next 2/2] selftests: txtimestamp: add SCM_TS_OPT_ID test
Extend txtimestamp udp test to run with fixed tskey using
SCM_TS_OPT_ID control message.
Signed-off-by: Vadim Fedorenko <vadfed@...a.com>
---
tools/include/uapi/asm-generic/socket.h | 2 +
tools/testing/selftests/net/txtimestamp.c | 48 +++++++++++++++++-----
tools/testing/selftests/net/txtimestamp.sh | 1 +
3 files changed, 41 insertions(+), 10 deletions(-)
diff --git a/tools/include/uapi/asm-generic/socket.h b/tools/include/uapi/asm-generic/socket.h
index 54d9c8bf7c55..281df9139d2b 100644
--- a/tools/include/uapi/asm-generic/socket.h
+++ b/tools/include/uapi/asm-generic/socket.h
@@ -124,6 +124,8 @@
#define SO_PASSPIDFD 76
#define SO_PEERPIDFD 77
+#define SCM_TS_OPT_ID 78
+
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
diff --git a/tools/testing/selftests/net/txtimestamp.c b/tools/testing/selftests/net/txtimestamp.c
index ec60a16c9307..3a8f716e72ae 100644
--- a/tools/testing/selftests/net/txtimestamp.c
+++ b/tools/testing/selftests/net/txtimestamp.c
@@ -54,6 +54,10 @@
#define USEC_PER_SEC 1000000L
#define NSEC_PER_SEC 1000000000LL
+#ifndef SCM_TS_OPT_ID
+# define SCM_TS_OPT_ID 78
+#endif
+
/* command line parameters */
static int cfg_proto = SOCK_STREAM;
static int cfg_ipproto = IPPROTO_TCP;
@@ -77,6 +81,8 @@ static bool cfg_epollet;
static bool cfg_do_listen;
static uint16_t dest_port = 9000;
static bool cfg_print_nsec;
+static uint32_t ts_opt_id;
+static bool cfg_use_cmsg_opt_id;
static struct sockaddr_in daddr;
static struct sockaddr_in6 daddr6;
@@ -136,12 +142,13 @@ static void validate_key(int tskey, int tstype)
/* compare key for each subsequent request
* must only test for one type, the first one requested
*/
- if (saved_tskey == -1)
+ if (saved_tskey == -1 || cfg_use_cmsg_opt_id)
saved_tskey_type = tstype;
else if (saved_tskey_type != tstype)
return;
stepsize = cfg_proto == SOCK_STREAM ? cfg_payload_len : 1;
+ stepsize = cfg_use_cmsg_opt_id ? 0 : stepsize;
if (tskey != saved_tskey + stepsize) {
fprintf(stderr, "ERROR: key %d, expected %d\n",
tskey, saved_tskey + stepsize);
@@ -480,7 +487,7 @@ static void fill_header_udp(void *p, bool is_ipv4)
static void do_test(int family, unsigned int report_opt)
{
- char control[CMSG_SPACE(sizeof(uint32_t))];
+ char control[2 * CMSG_SPACE(sizeof(uint32_t))];
struct sockaddr_ll laddr;
unsigned int sock_opt;
struct cmsghdr *cmsg;
@@ -620,18 +627,32 @@ static void do_test(int family, unsigned int report_opt)
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
- if (cfg_use_cmsg) {
+ if (cfg_use_cmsg || cfg_use_cmsg_opt_id) {
memset(control, 0, sizeof(control));
msg.msg_control = control;
- msg.msg_controllen = sizeof(control);
+ msg.msg_controllen = cfg_use_cmsg * CMSG_SPACE(sizeof(uint32_t));
+ msg.msg_controllen += cfg_use_cmsg_opt_id * CMSG_SPACE(sizeof(uint32_t));
- cmsg = CMSG_FIRSTHDR(&msg);
- cmsg->cmsg_level = SOL_SOCKET;
- cmsg->cmsg_type = SO_TIMESTAMPING;
- cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
+ cmsg = NULL;
+ if (cfg_use_cmsg) {
+ cmsg = CMSG_FIRSTHDR(&msg);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SO_TIMESTAMPING;
+ cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
+
+ *((uint32_t *)CMSG_DATA(cmsg)) = report_opt;
+ }
+ if (cfg_use_cmsg_opt_id) {
+ cmsg = cmsg ? CMSG_NXTHDR(&msg, cmsg) : CMSG_FIRSTHDR(&msg);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_TS_OPT_ID;
+ cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
+
+ *((uint32_t *)CMSG_DATA(cmsg)) = ts_opt_id;
+ saved_tskey = ts_opt_id;
+ }
- *((uint32_t *) CMSG_DATA(cmsg)) = report_opt;
}
val = sendmsg(fd, &msg, 0);
@@ -681,6 +702,7 @@ static void __attribute__((noreturn)) usage(const char *filepath)
" -L listen on hostname and port\n"
" -n: set no-payload option\n"
" -N: print timestamps and durations in nsec (instead of usec)\n"
+ " -o N: use SCM_TS_OPT_ID control message to provide N as tskey\n"
" -p N: connect to port N\n"
" -P: use PF_PACKET\n"
" -r: use raw\n"
@@ -701,7 +723,7 @@ static void parse_opt(int argc, char **argv)
int c;
while ((c = getopt(argc, argv,
- "46bc:CeEFhIl:LnNp:PrRS:t:uv:V:x")) != -1) {
+ "46bc:CeEFhIl:LnNo:p:PrRS:t:uv:V:x")) != -1) {
switch (c) {
case '4':
do_ipv6 = 0;
@@ -742,6 +764,10 @@ static void parse_opt(int argc, char **argv)
case 'N':
cfg_print_nsec = true;
break;
+ case 'o':
+ ts_opt_id = strtoul(optarg, NULL, 10);
+ cfg_use_cmsg_opt_id = true;
+ break;
case 'p':
dest_port = strtoul(optarg, NULL, 10);
break;
@@ -799,6 +825,8 @@ static void parse_opt(int argc, char **argv)
error(1, 0, "cannot ask for pktinfo over pf_packet");
if (cfg_busy_poll && cfg_use_epoll)
error(1, 0, "pass epoll or busy_poll, not both");
+ if (cfg_proto != SOCK_DGRAM && cfg_use_cmsg_opt_id)
+ error(1, 0, "control message TS_OPT_ID can only be used with udp socket");
if (optind != argc - 1)
error(1, 0, "missing required hostname argument");
diff --git a/tools/testing/selftests/net/txtimestamp.sh b/tools/testing/selftests/net/txtimestamp.sh
index 25baca4b148e..7894628a9355 100755
--- a/tools/testing/selftests/net/txtimestamp.sh
+++ b/tools/testing/selftests/net/txtimestamp.sh
@@ -39,6 +39,7 @@ run_test_tcpudpraw() {
run_test_v4v6 ${args} # tcp
run_test_v4v6 ${args} -u # udp
+ run_test_v4v6 ${args} -u -o 5 # udp with fixed tskey
run_test_v4v6 ${args} -r # raw
run_test_v4v6 ${args} -R # raw (IPPROTO_RAW)
run_test_v4v6 ${args} -P # pf_packet
--
2.43.5
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