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|
/*
* Copyright (c) 2017-2024 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "print_fields.h"
#include <inttypes.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#include "netlink.h"
#include <linux/rtnetlink.h>
#ifndef PRINT_SOCK
# define PRINT_SOCK 0
#endif
static void
init_nlattr(struct nlattr *const nla,
const uint16_t nla_len,
const uint16_t nla_type,
const void *const src,
const size_t n)
{
SET_STRUCT(struct nlattr, nla,
.nla_len = nla_len,
.nla_type = nla_type,
);
memcpy(RTA_DATA(nla), src, n);
}
static void
print_nlattr(const unsigned int nla_len, const char *const nla_type, bool add_data)
{
printf(", %s[{nla_len=%u, nla_type=%s}, ",
add_data ? "[" : "", nla_len, nla_type);
}
static void
print_sockfd(int sockfd, const char *pfx, const char *sfx)
{
#if PRINT_SOCK
static int fd = -1;
static unsigned long inode;
if (sockfd < 0) {
printf("%s%d%s", pfx, sockfd, sfx);
return;
}
if (sockfd != fd) {
fd = sockfd;
inode = inode_of_sockfd(fd);
}
printf("%s%d<socket:[%lu]>%s", pfx, sockfd, inode, sfx);
#else
printf("%s%d%s", pfx, sockfd, sfx);
#endif
}
#define TEST_NLATTR_EX_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
nla_data_len_, nla_total_len_, \
src_, slen_, ...) \
do { \
struct nlmsghdr *const nlh = \
(nlh0_) - (NLA_HDRLEN + (slen_)); \
struct nlattr *const TEST_NLATTR_nla = \
NLMSG_ATTR(nlh, (hdrlen_)); \
const unsigned int nla_len = \
NLA_HDRLEN + (nla_data_len_); \
const unsigned int msg_len = \
NLMSG_SPACE(hdrlen_) + NLA_HDRLEN + (nla_total_len_); \
\
(init_msg_)(nlh, msg_len); \
init_nlattr(TEST_NLATTR_nla, nla_len, (nla_type_), \
(src_), (slen_)); \
\
const char *const errstr = \
sprintrc(sendto((fd_), nlh, msg_len, \
MSG_DONTWAIT, NULL, 0)); \
\
print_sockfd((fd_), "sendto(", ", ["); \
(print_msg_)(msg_len); \
print_nlattr(nla_len, (nla_type_str_), \
(nla_total_len_) > (nla_data_len_)); \
\
{ __VA_ARGS__; } \
\
if ((nla_total_len_) > (nla_data_len_)) \
printf("]"); \
\
printf("]], %u, " XLAT_FMT ", NULL, 0) = %s\n", \
msg_len, XLAT_ARGS(MSG_DONTWAIT), errstr); \
} while (0)
#define TEST_NLATTR_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
nla_data_len_, src_, slen_, ...) \
TEST_NLATTR_EX_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
(nla_data_len_), (nla_data_len_), \
(src_), (slen_), __VA_ARGS__)
#define TEST_NLATTR(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, \
nla_data_len_, src_, slen_, ...) \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, \
(nla_data_len_), (src_), (slen_), __VA_ARGS__)
#define TEST_NLATTR_OBJECT_EX_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
pattern_, obj_, minsz_, fallback_func, ...) \
do { \
const unsigned int plen = MIN((minsz_) - 1, DEFAULT_STRLEN); \
/* len < sizeof(obj_) */ \
if (plen > 0) \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
plen, (pattern_), plen, \
(fallback_func)((pattern_), plen)); \
/* short read of sizeof(obj_) */ \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), \
(pattern_), (minsz_) - 1, \
printf("%p", \
RTA_DATA(NLMSG_ATTR(nlh, (hdrlen_))))); \
/* sizeof(obj_) */ \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), \
&(obj_), sizeof(obj_), \
__VA_ARGS__); \
} while (0)
#define TEST_NLATTR_OBJECT_EX(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, \
pattern_, obj_, minsz_, fallback_func, ...) \
TEST_NLATTR_OBJECT_EX_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, \
(pattern_), (obj_), (minsz_), \
(fallback_func), __VA_ARGS__)
#define TEST_NLATTR_OBJECT(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, obj_, ...) \
TEST_NLATTR_OBJECT_EX_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, \
(pattern_), (obj_), sizeof(obj_), \
print_quoted_hex, __VA_ARGS__)
#define TEST_NLATTR_OBJECT_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, pattern_, obj_, ...) \
TEST_NLATTR_OBJECT_EX_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
(pattern_), (obj_), sizeof(obj_), \
print_quoted_hex, __VA_ARGS__)
#define TEST_NLATTR_OBJECT_MINSZ(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, obj_, minsz_, ...) \
TEST_NLATTR_OBJECT_EX_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, \
(pattern_), (obj_), (minsz_), \
print_quoted_hex, __VA_ARGS__)
#define TEST_NLATTR_ARRAY_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
pattern_, obj_, print_elem_) \
do { \
const unsigned int plen = \
sizeof((obj_)[0]) - 1 > DEFAULT_STRLEN \
? DEFAULT_STRLEN : (int) sizeof((obj_)[0]) - 1; \
/* len < sizeof((obj_)[0]) */ \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
plen, (pattern_), plen, \
print_quoted_hex((pattern_), plen)); \
/* sizeof((obj_)[0]) < len < sizeof(obj_) */ \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_) - 1, \
&(obj_), sizeof(obj_) - 1, \
printf("["); \
for (size_t i = 0; \
i < ARRAY_SIZE(obj_) - 1; ++i) { \
if (i) printf(", "); \
(print_elem_)(&(obj_)[i], i); \
} \
printf("]")); \
/* short read of sizeof(obj_) */ \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), \
&(obj_), sizeof(obj_) - 1, \
printf("["); \
for (size_t i = 0; \
i < ARRAY_SIZE(obj_) - 1; ++i) { \
if (i) printf(", "); \
(print_elem_)(&(obj_)[i], i); \
} \
printf(", ... /* %p */]", \
RTA_DATA(NLMSG_ATTR(nlh, (hdrlen_))) \
+ sizeof(obj_) - sizeof((obj_)[0]))); \
/* sizeof(obj_) */ \
TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), \
&(obj_), sizeof(obj_), \
printf("["); \
for (size_t i = 0; i < ARRAY_SIZE(obj_); ++i) { \
if (i) printf(", "); \
(print_elem_)(&(obj_)[i], i); \
} \
printf("]")); \
} while (0)
#define TEST_NLATTR_ARRAY(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, obj_, print_elem_) \
TEST_NLATTR_ARRAY_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, \
(pattern_), (obj_), (print_elem_))
#define TEST_NESTED_NLATTR_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
nla_data_len_, src_, slen_, depth_, ...) \
TEST_NLATTR_((fd_), (nlh0_) - NLA_HDRLEN * (depth_), \
(hdrlen_) + NLA_HDRLEN * (depth_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
(nla_data_len_), (src_), (slen_), \
__VA_ARGS__; \
for (size_t i = 0; i < (depth_); ++i) \
printf("]"))
#define TEST_NESTED_NLATTR_OBJECT_EX_MINSZ_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
pattern_, obj_, minsz_, \
fallback_func, depth_, ...) \
do { \
const unsigned int plen = \
sizeof(obj_) - 1 > DEFAULT_STRLEN \
? DEFAULT_STRLEN : (int) sizeof(obj_) - 1; \
/* len < sizeof(obj_) */ \
if (plen > 0) \
TEST_NESTED_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
plen, (pattern_), plen, (depth_), \
(fallback_func)((pattern_), plen)); \
/* short read of sizeof(obj_) */ \
TEST_NESTED_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), (pattern_), (minsz_) - 1, (depth_), \
printf("%p", RTA_DATA(TEST_NLATTR_nla))); \
/* sizeof(obj_) */ \
TEST_NESTED_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), &(obj_), sizeof(obj_), (depth_), \
__VA_ARGS__); \
} while (0)
#define TEST_NESTED_NLATTR_OBJECT_EX_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
pattern_, obj_, \
fallback_func, depth_, ...) \
TEST_NESTED_NLATTR_OBJECT_EX_MINSZ_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
(pattern_), (obj_), sizeof(obj_), \
(fallback_func), (depth_), \
__VA_ARGS__)
#define TEST_NESTED_NLATTR_OBJECT_EX(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, obj_, \
depth_, ...) \
TEST_NESTED_NLATTR_OBJECT_EX_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, \
(pattern_), (obj_), \
print_quoted_hex, (depth_), \
__VA_ARGS__)
#define TEST_NESTED_NLATTR_OBJECT(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, obj_, ...) \
TEST_NESTED_NLATTR_OBJECT_EX_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, \
(pattern_), (obj_), \
print_quoted_hex, 1, \
__VA_ARGS__)
#define TEST_NESTED_NLATTR_ARRAY_EX_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, nla_type_str_, \
pattern_, obj_, depth_, \
print_elem_) \
do { \
const unsigned int plen = \
sizeof((obj_)[0]) - 1 > DEFAULT_STRLEN \
? DEFAULT_STRLEN : (int) sizeof((obj_)[0]) - 1; \
/* len < sizeof((obj_)[0]) */ \
TEST_NESTED_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
plen, (pattern_), plen, (depth_), \
print_quoted_hex((pattern_), plen)); \
/* sizeof((obj_)[0]) < len < sizeof(obj_) */ \
TEST_NESTED_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_) - 1, \
&(obj_), sizeof(obj_) - 1, (depth_), \
printf("["); \
for (size_t i = 0; \
i < ARRAY_SIZE(obj_) - 1; ++i) { \
if (i) printf(", "); \
(print_elem_)(&(obj_)[i], i); \
} \
printf("]")); \
/* short read of sizeof(obj_) */ \
TEST_NESTED_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), \
&(obj_), sizeof(obj_) - 1, (depth_), \
printf("["); \
for (size_t i = 0; \
i < ARRAY_SIZE(obj_) - 1; ++i) { \
if (i) printf(", "); \
(print_elem_)(&(obj_)[i], i); \
} \
printf(", ... /* %p */]", \
RTA_DATA(TEST_NLATTR_nla) \
+ sizeof(obj_) - sizeof((obj_)[0]))); \
/* sizeof(obj_) */ \
TEST_NESTED_NLATTR_((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), (nla_type_str_), \
sizeof(obj_), &(obj_), sizeof(obj_), (depth_), \
printf("["); \
for (size_t i = 0; i < ARRAY_SIZE(obj_); ++i) { \
if (i) printf(", "); \
(print_elem_)(&(obj_)[i], i); \
} \
printf("]")); \
} while (0)
#define TEST_NESTED_NLATTR_ARRAY_EX(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, obj_, depth_, \
print_elem_) \
TEST_NESTED_NLATTR_ARRAY_EX_(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, #nla_type_, pattern_, \
obj_, depth_, print_elem_)
#define TEST_NESTED_NLATTR_ARRAY(fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, obj_, print_elem_)\
TEST_NESTED_NLATTR_ARRAY_EX((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
nla_type_, (pattern_), (obj_), 1, \
(print_elem_))
/* Checks for specific typical decoders */
#define DEF_NLATTR_INTEGER_CHECK_(nla_data_name_, nla_data_type_, fmt_) \
static inline void \
check_##nla_data_name_##_nlattr(int fd, void *nlh0, size_t hdrlen, \
void (*init_msg)(struct nlmsghdr *, \
unsigned int), \
void (*print_msg)(unsigned int), \
unsigned int nla_type, \
const char *nla_type_str, \
void *pattern, size_t depth) \
{ \
static const nla_data_type_ vecs[] = { \
(nla_data_type_) 0, \
(nla_data_type_) 1, \
(nla_data_type_) 0xdeadfacebeeffeedULL, \
}; \
static char buf[sizeof(nla_data_type_) + 8]; \
for (size_t i = 0; i < ARRAY_SIZE(vecs); i++) { \
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen, \
init_msg, print_msg, \
nla_type, nla_type_str, \
pattern, vecs[i], \
print_quoted_hex, depth, \
printf(fmt_, vecs[i])); \
fill_memory(buf, sizeof(buf)); \
memcpy(buf, vecs + i, sizeof(vecs[i])); \
TEST_NLATTR_(fd, nlh0 - NLA_HDRLEN * depth, \
hdrlen + NLA_HDRLEN * depth, \
init_msg, print_msg, \
nla_type, nla_type_str, \
sizeof(vecs[i]) + 8, \
buf, sizeof(vecs[i]) + 8, \
printf(fmt_, vecs[i]); \
for (size_t i = 0; i < depth; i++) \
printf("]")); \
} \
}
DEF_NLATTR_INTEGER_CHECK_(u8, uint8_t, "%hhu")
DEF_NLATTR_INTEGER_CHECK_(u16, uint16_t, "%hu")
DEF_NLATTR_INTEGER_CHECK_(u32, uint32_t, "%u")
DEF_NLATTR_INTEGER_CHECK_(u64, uint64_t, "%" PRIu64)
DEF_NLATTR_INTEGER_CHECK_(x8, uint8_t, "%#hhx")
DEF_NLATTR_INTEGER_CHECK_(x16, uint16_t, "%#hx")
DEF_NLATTR_INTEGER_CHECK_(x32, uint32_t, "%#x")
#define TEST_NLATTR_VAL(type_, fd_, nlh0_, hdrlen_, \
init_msg_, print_msg_, \
nla_type_, pattern_, depth_) \
check_##type_##_nlattr((fd_), (nlh0_), (hdrlen_), \
(init_msg_), (print_msg_), \
(nla_type_), #nla_type_, (pattern_), (depth_))
static inline void
check_clock_t_nlattr(int fd, void *nlh0, size_t hdrlen,
void (*init_msg)(struct nlmsghdr *, unsigned int),
void (*print_msg)(unsigned int),
unsigned int nla_type, const char *nla_type_str,
size_t depth)
{
static const uint64_t vecs[] = { 0, 1, 9, 10, 99, 100, 249, 250, 999,
1000, 1023, 1024, 0xdefacebeeffedULL };
static char buf[sizeof(uint64_t) + 1];
#if !XLAT_RAW
static long clk_tck;
static int precision;
if (!clk_tck) {
clk_tck = sysconf(_SC_CLK_TCK);
precision = clk_tck > 100000000 ? 9
: clk_tck > 10000000 ? 8
: clk_tck > 1000000 ? 7
: clk_tck > 100000 ? 6
: clk_tck > 10000 ? 5
: clk_tck > 1000 ? 4
: clk_tck > 100 ? 3
: clk_tck > 10 ? 2
: clk_tck > 1 ? 1 : 0;
}
#endif
fill_memory(buf, sizeof(buf));
TEST_NLATTR_(fd, nlh0 - NLA_HDRLEN * depth, hdrlen + NLA_HDRLEN * depth,
init_msg, print_msg, nla_type, nla_type_str,
sizeof(vecs[0]) + 1, buf, sizeof(vecs[0]) + 1,
print_quoted_hex(buf, sizeof(vecs[0]) + 1);
for (size_t i = 0; i < depth; i++)
printf("]"));
for (size_t i = 0; i < ARRAY_SIZE(vecs); i++) {
memcpy(buf, vecs + i, sizeof(vecs[i]));
TEST_NLATTR_(fd, nlh0 - NLA_HDRLEN * depth,
hdrlen + NLA_HDRLEN * depth,
init_msg, print_msg, nla_type, nla_type_str,
sizeof(vecs[i]),
buf, sizeof(vecs[i]),
printf("%" PRIu64, vecs[i]);
#if !XLAT_RAW
if (i)
printf(" /* %.*f s */", precision,
(double) vecs[i] / clk_tck);
#endif
for (size_t i = 0; i < depth; i++)
printf("]"));
}
for (size_t i = 1; i < sizeof(vecs[0]); i++) {
uint64_t val = vecs[ARRAY_SIZE(vecs) - 1] & MASK64(i * 8);
TEST_NLATTR_(fd, nlh0 - NLA_HDRLEN * depth,
hdrlen + NLA_HDRLEN * depth,
init_msg, print_msg, nla_type, nla_type_str,
i, buf + BE_LE(sizeof(vecs[0]) - i, 0), i,
printf("%" PRIu64, val);
#if !XLAT_RAW
printf(" /* %.*f s */", precision,
(double) val / clk_tck);
#endif
for (size_t i = 0; i < depth; i++)
printf("]"));
}
}
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