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path: root/tools/testing/selftests/net/so_txtime.c
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Diffstat (limited to 'tools/testing/selftests/net/so_txtime.c')
-rw-r--r--tools/testing/selftests/net/so_txtime.c84
1 files changed, 81 insertions, 3 deletions
diff --git a/tools/testing/selftests/net/so_txtime.c b/tools/testing/selftests/net/so_txtime.c
index 34df4c8882af..383bac05ac32 100644
--- a/tools/testing/selftests/net/so_txtime.c
+++ b/tools/testing/selftests/net/so_txtime.c
@@ -12,7 +12,11 @@
#include <arpa/inet.h>
#include <error.h>
#include <errno.h>
+#include <inttypes.h>
#include <linux/net_tstamp.h>
+#include <linux/errqueue.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
@@ -28,7 +32,7 @@ static int cfg_clockid = CLOCK_TAI;
static bool cfg_do_ipv4;
static bool cfg_do_ipv6;
static uint16_t cfg_port = 8000;
-static int cfg_variance_us = 2000;
+static int cfg_variance_us = 4000;
static uint64_t glob_tstart;
@@ -43,6 +47,9 @@ static struct timed_send cfg_in[MAX_NUM_PKT];
static struct timed_send cfg_out[MAX_NUM_PKT];
static int cfg_num_pkt;
+static int cfg_errq_level;
+static int cfg_errq_type;
+
static uint64_t gettime_ns(void)
{
struct timespec ts;
@@ -90,13 +97,15 @@ static void do_send_one(int fdt, struct timed_send *ts)
}
-static void do_recv_one(int fdr, struct timed_send *ts)
+static bool do_recv_one(int fdr, struct timed_send *ts)
{
int64_t tstop, texpect;
char rbuf[2];
int ret;
ret = recv(fdr, rbuf, sizeof(rbuf), 0);
+ if (ret == -1 && errno == EAGAIN)
+ return true;
if (ret == -1)
error(1, errno, "read");
if (ret != 1)
@@ -113,6 +122,8 @@ static void do_recv_one(int fdr, struct timed_send *ts)
if (labs(tstop - texpect) > cfg_variance_us)
error(1, 0, "exceeds variance (%d us)", cfg_variance_us);
+
+ return false;
}
static void do_recv_verify_empty(int fdr)
@@ -125,12 +136,70 @@ static void do_recv_verify_empty(int fdr)
error(1, 0, "recv: not empty as expected (%d, %d)", ret, errno);
}
+static void do_recv_errqueue_timeout(int fdt)
+{
+ char control[CMSG_SPACE(sizeof(struct sock_extended_err)) +
+ CMSG_SPACE(sizeof(struct sockaddr_in6))] = {0};
+ char data[sizeof(struct ipv6hdr) +
+ sizeof(struct tcphdr) + 1];
+ struct sock_extended_err *err;
+ struct msghdr msg = {0};
+ struct iovec iov = {0};
+ struct cmsghdr *cm;
+ int64_t tstamp = 0;
+ int ret;
+
+ iov.iov_base = data;
+ iov.iov_len = sizeof(data);
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ msg.msg_control = control;
+ msg.msg_controllen = sizeof(control);
+
+ while (1) {
+ ret = recvmsg(fdt, &msg, MSG_ERRQUEUE);
+ if (ret == -1 && errno == EAGAIN)
+ break;
+ if (ret == -1)
+ error(1, errno, "errqueue");
+ if (msg.msg_flags != MSG_ERRQUEUE)
+ error(1, 0, "errqueue: flags 0x%x\n", msg.msg_flags);
+
+ cm = CMSG_FIRSTHDR(&msg);
+ if (cm->cmsg_level != cfg_errq_level ||
+ cm->cmsg_type != cfg_errq_type)
+ error(1, 0, "errqueue: type 0x%x.0x%x\n",
+ cm->cmsg_level, cm->cmsg_type);
+
+ err = (struct sock_extended_err *)CMSG_DATA(cm);
+ if (err->ee_origin != SO_EE_ORIGIN_TXTIME)
+ error(1, 0, "errqueue: origin 0x%x\n", err->ee_origin);
+ if (err->ee_code != ECANCELED)
+ error(1, 0, "errqueue: code 0x%x\n", err->ee_code);
+
+ tstamp = ((int64_t) err->ee_data) << 32 | err->ee_info;
+ tstamp -= (int64_t) glob_tstart;
+ tstamp /= 1000 * 1000;
+ fprintf(stderr, "send: pkt %c at %" PRId64 "ms dropped\n",
+ data[ret - 1], tstamp);
+
+ msg.msg_flags = 0;
+ msg.msg_controllen = sizeof(control);
+ }
+
+ error(1, 0, "recv: timeout");
+}
+
static void setsockopt_txtime(int fd)
{
struct sock_txtime so_txtime_val = { .clockid = cfg_clockid };
struct sock_txtime so_txtime_val_read = { 0 };
socklen_t vallen = sizeof(so_txtime_val);
+ so_txtime_val.flags = SOF_TXTIME_REPORT_ERRORS;
+
if (setsockopt(fd, SOL_SOCKET, SO_TXTIME,
&so_txtime_val, sizeof(so_txtime_val)))
error(1, errno, "setsockopt txtime");
@@ -194,7 +263,8 @@ static void do_test(struct sockaddr *addr, socklen_t alen)
for (i = 0; i < cfg_num_pkt; i++)
do_send_one(fdt, &cfg_in[i]);
for (i = 0; i < cfg_num_pkt; i++)
- do_recv_one(fdr, &cfg_out[i]);
+ if (do_recv_one(fdr, &cfg_out[i]))
+ do_recv_errqueue_timeout(fdt);
do_recv_verify_empty(fdr);
@@ -280,6 +350,10 @@ int main(int argc, char **argv)
addr6.sin6_family = AF_INET6;
addr6.sin6_port = htons(cfg_port);
addr6.sin6_addr = in6addr_loopback;
+
+ cfg_errq_level = SOL_IPV6;
+ cfg_errq_type = IPV6_RECVERR;
+
do_test((void *)&addr6, sizeof(addr6));
}
@@ -289,6 +363,10 @@ int main(int argc, char **argv)
addr4.sin_family = AF_INET;
addr4.sin_port = htons(cfg_port);
addr4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ cfg_errq_level = SOL_IP;
+ cfg_errq_type = IP_RECVERR;
+
do_test((void *)&addr4, sizeof(addr4));
}