1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright 2025 Google LLC */
#include <linux/sockios.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include "../../kselftest_harness.h"
#define NR_CHUNKS 100
#define MSG_LEN 256
struct scm_inq {
struct cmsghdr cmsghdr;
int inq;
};
FIXTURE(scm_inq)
{
int fd[2];
};
FIXTURE_VARIANT(scm_inq)
{
int type;
};
FIXTURE_VARIANT_ADD(scm_inq, stream)
{
.type = SOCK_STREAM,
};
FIXTURE_VARIANT_ADD(scm_inq, dgram)
{
.type = SOCK_DGRAM,
};
FIXTURE_VARIANT_ADD(scm_inq, seqpacket)
{
.type = SOCK_SEQPACKET,
};
FIXTURE_SETUP(scm_inq)
{
int err;
err = socketpair(AF_UNIX, variant->type | SOCK_NONBLOCK, 0, self->fd);
ASSERT_EQ(0, err);
}
FIXTURE_TEARDOWN(scm_inq)
{
close(self->fd[0]);
close(self->fd[1]);
}
static void send_chunks(struct __test_metadata *_metadata,
FIXTURE_DATA(scm_inq) *self)
{
char buf[MSG_LEN] = {};
int i, ret;
for (i = 0; i < NR_CHUNKS; i++) {
ret = send(self->fd[0], buf, sizeof(buf), 0);
ASSERT_EQ(sizeof(buf), ret);
}
}
static void recv_chunks(struct __test_metadata *_metadata,
FIXTURE_DATA(scm_inq) *self)
{
struct msghdr msg = {};
struct iovec iov = {};
struct scm_inq cmsg;
char buf[MSG_LEN];
int i, ret;
int inq;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = &cmsg;
msg.msg_controllen = CMSG_SPACE(sizeof(cmsg.inq));
iov.iov_base = buf;
iov.iov_len = sizeof(buf);
for (i = 0; i < NR_CHUNKS; i++) {
memset(buf, 0, sizeof(buf));
memset(&cmsg, 0, sizeof(cmsg));
ret = recvmsg(self->fd[1], &msg, 0);
ASSERT_EQ(MSG_LEN, ret);
ASSERT_NE(NULL, CMSG_FIRSTHDR(&msg));
ASSERT_EQ(CMSG_LEN(sizeof(cmsg.inq)), cmsg.cmsghdr.cmsg_len);
ASSERT_EQ(SOL_SOCKET, cmsg.cmsghdr.cmsg_level);
ASSERT_EQ(SCM_INQ, cmsg.cmsghdr.cmsg_type);
ret = ioctl(self->fd[1], SIOCINQ, &inq);
ASSERT_EQ(0, ret);
ASSERT_EQ(cmsg.inq, inq);
}
}
TEST_F(scm_inq, basic)
{
int err, inq;
err = setsockopt(self->fd[1], SOL_SOCKET, SO_INQ, &(int){1}, sizeof(int));
if (variant->type != SOCK_STREAM) {
ASSERT_EQ(-ENOPROTOOPT, -errno);
return;
}
ASSERT_EQ(0, err);
err = ioctl(self->fd[1], SIOCINQ, &inq);
ASSERT_EQ(0, err);
ASSERT_EQ(0, inq);
send_chunks(_metadata, self);
recv_chunks(_metadata, self);
}
TEST_HARNESS_MAIN
|
