You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
323 lines
9.4 KiB
323 lines
9.4 KiB
/*
|
|
* IFLA_AF_SPEC netlink attribute decoding check.
|
|
*
|
|
* Copyright (c) 2018 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "tests.h"
|
|
|
|
#include <inttypes.h>
|
|
#include <stdio.h>
|
|
#include <stddef.h>
|
|
#include "test_nlattr.h"
|
|
|
|
#include <linux/if.h>
|
|
#include <linux/if_arp.h>
|
|
#ifdef HAVE_LINUX_IF_LINK_H
|
|
# include <linux/if_link.h>
|
|
#endif
|
|
#include <linux/rtnetlink.h>
|
|
|
|
#if !HAVE_DECL_IFLA_AF_SPEC
|
|
enum { IFLA_AF_SPEC = 26 };
|
|
#endif
|
|
|
|
#define XLAT_MACROS_ONLY
|
|
# include "xlat/rtnl_ifla_af_spec_inet_attrs.h"
|
|
# include "xlat/rtnl_ifla_af_spec_inet6_attrs.h"
|
|
#undef XLAT_MACROS_ONLY
|
|
|
|
#ifndef HAVE_STRUCT_IFLA_CACHEINFO
|
|
struct ifla_cacheinfo {
|
|
uint32_t max_reasm_len;
|
|
uint32_t tstamp;
|
|
uint32_t reachable_time;
|
|
uint32_t retrans_time;
|
|
};
|
|
#endif
|
|
|
|
#define IFLA_ATTR IFLA_AF_SPEC
|
|
#include "nlattr_ifla.h"
|
|
|
|
#define AF_SPEC_FUNCS(family_) \
|
|
static void \
|
|
init_##family_##_msg(struct nlmsghdr *const nlh, \
|
|
const unsigned int msg_len) \
|
|
{ \
|
|
init_ifinfomsg(nlh, msg_len); \
|
|
\
|
|
struct nlattr *nla = NLMSG_ATTR(nlh, hdrlen); \
|
|
nla += 1; \
|
|
SET_STRUCT(struct nlattr, nla, \
|
|
.nla_len = msg_len - NLMSG_SPACE(hdrlen) \
|
|
- NLA_HDRLEN, \
|
|
.nla_type = family_, \
|
|
); \
|
|
} \
|
|
\
|
|
static void \
|
|
print_##family_##_msg(const unsigned int msg_len) \
|
|
{ \
|
|
print_ifinfomsg(msg_len); \
|
|
printf(", {{nla_len=%u, nla_type=" #family_ "}", \
|
|
msg_len - NLMSG_SPACE(hdrlen) - NLA_HDRLEN); \
|
|
} \
|
|
/* end of AF_SPEC_FUNCS definition */
|
|
|
|
AF_SPEC_FUNCS(AF_INET)
|
|
AF_SPEC_FUNCS(AF_INET6)
|
|
|
|
static void
|
|
print_arr_val(uint32_t *val, size_t idx, const char *idx_str)
|
|
{
|
|
if (idx_str)
|
|
printf("[%s] = ", idx_str);
|
|
else
|
|
printf("[%zu] = ", idx);
|
|
|
|
printf("%d", *val);
|
|
}
|
|
|
|
static void
|
|
print_arr_uval(uint64_t *val, size_t idx, const char *idx_str)
|
|
{
|
|
if (idx_str)
|
|
printf("[%s] = ", idx_str);
|
|
else
|
|
printf("[%zu] = ", idx);
|
|
|
|
printf("%" PRIu64, *val);
|
|
}
|
|
|
|
static void
|
|
print_inet_conf_val(uint32_t *val, size_t idx)
|
|
{
|
|
static const char * const strs[] = {
|
|
"IPV4_DEVCONF_FORWARDING-1",
|
|
"IPV4_DEVCONF_MC_FORWARDING-1",
|
|
};
|
|
|
|
print_arr_val(val, idx, idx < ARRAY_SIZE(strs) ? strs[idx] : NULL);
|
|
}
|
|
|
|
|
|
static void
|
|
print_inet6_conf_val(uint32_t *val, size_t idx)
|
|
{
|
|
static const char * const strs[] = {
|
|
"DEVCONF_FORWARDING",
|
|
"DEVCONF_HOPLIMIT",
|
|
};
|
|
|
|
print_arr_val(val, idx, idx < ARRAY_SIZE(strs) ? strs[idx] : NULL);
|
|
}
|
|
|
|
static void
|
|
print_inet6_stats_val(uint64_t *val, size_t idx)
|
|
{
|
|
static const char * const strs[] = {
|
|
"IPSTATS_MIB_NUM",
|
|
"IPSTATS_MIB_INPKTS",
|
|
};
|
|
|
|
print_arr_uval(val, idx, idx < ARRAY_SIZE(strs) ? strs[idx] : NULL);
|
|
}
|
|
|
|
static void
|
|
print_icmp6_stats_val(uint64_t *val, size_t idx)
|
|
{
|
|
static const char * const strs[] = {
|
|
"ICMP6_MIB_NUM",
|
|
"ICMP6_MIB_INMSGS",
|
|
"ICMP6_MIB_INERRORS",
|
|
"ICMP6_MIB_OUTMSGS",
|
|
"ICMP6_MIB_OUTERRORS",
|
|
"ICMP6_MIB_CSUMERRORS",
|
|
"6 /* ICMP6_MIB_??? */",
|
|
};
|
|
|
|
print_arr_uval(val, idx, idx < ARRAY_SIZE(strs) ? strs[idx] : NULL);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
static const uint8_t unknown_msg[] = { 0xab, 0xac, 0xdb, 0xcd };
|
|
|
|
skip_if_unavailable("/proc/self/fd/");
|
|
|
|
const int fd = create_nl_socket(NETLINK_ROUTE);
|
|
|
|
const unsigned int hdrlen = sizeof(struct ifinfomsg);
|
|
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), 3 * NLA_HDRLEN + 256);
|
|
|
|
static char pattern[4096];
|
|
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
|
|
|
|
|
|
/* unknown AF_* */
|
|
TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
|
|
init_ifinfomsg, print_ifinfomsg,
|
|
AF_UNIX, pattern, unknown_msg,
|
|
printf("\"\\xab\\xac\\xdb\\xcd\""));
|
|
|
|
/* AF_INET */
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET_msg, print_AF_INET_msg,
|
|
0, "IFLA_INET_UNSPEC", pattern,
|
|
unknown_msg, print_quoted_hex, 2,
|
|
printf("\"\\xab\\xac\\xdb\\xcd\""));
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET_msg, print_AF_INET_msg,
|
|
2, "0x2 /* IFLA_INET_??? */", pattern,
|
|
unknown_msg, print_quoted_hex, 2,
|
|
printf("\"\\xab\\xac\\xdb\\xcd\""));
|
|
|
|
/* AF_INET: IFLA_INET_CONF */
|
|
uint32_t inet_conf_vals[] = { 0xdeadc0de, 0xda7aface };
|
|
TEST_NESTED_NLATTR_ARRAY_EX(fd, nlh0, hdrlen,
|
|
init_AF_INET_msg, print_AF_INET_msg,
|
|
IFLA_INET_CONF, pattern,
|
|
inet_conf_vals, 2, print_inet_conf_val);
|
|
|
|
/* AF_INET6 */
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
0, "IFLA_INET6_UNSPEC", pattern,
|
|
unknown_msg, print_quoted_hex, 2,
|
|
printf("\"\\xab\\xac\\xdb\\xcd\""));
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
9, "0x9 /* IFLA_INET6_??? */", pattern,
|
|
unknown_msg, print_quoted_hex, 2,
|
|
printf("\"\\xab\\xac\\xdb\\xcd\""));
|
|
|
|
/* AF_INET6: IFLA_INET6_FLAGS */
|
|
static const struct {
|
|
uint32_t flags;
|
|
const char *str;
|
|
} inet6_flags[] = {
|
|
{ 0xf, "0xf /* IF_??? */" },
|
|
{ 0x10, "IF_RS_SENT" },
|
|
{ 0xc0, "IF_RA_MANAGED|IF_RA_OTHERCONF" },
|
|
{ 0xdeadc0de, "IF_RS_SENT|IF_RA_MANAGED|IF_RA_OTHERCONF"
|
|
"|IF_READY|0x5eadc00e" },
|
|
};
|
|
|
|
for (size_t i = 0; i < ARRAY_SIZE(inet6_flags); i++) {
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg,
|
|
print_AF_INET6_msg,
|
|
1, "IFLA_INET6_FLAGS", pattern,
|
|
inet6_flags[i].flags,
|
|
print_quoted_hex, 2,
|
|
printf("%s", inet6_flags[i].str));
|
|
}
|
|
|
|
/* AF_INET6: IFLA_INET6_CONF */
|
|
uint32_t inet6_conf_vals[] = { 0xdeadc0de, 0xda7aface };
|
|
TEST_NESTED_NLATTR_ARRAY_EX(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
IFLA_INET6_CONF, pattern,
|
|
inet6_conf_vals, 2, print_inet6_conf_val);
|
|
|
|
/* AF_INET6: IFLA_INET6_STATS */
|
|
uint64_t inet6_stats_vals[] = { 0xdeadc0deda7aface, 0xdec0deedbadc0ded };
|
|
TEST_NESTED_NLATTR_ARRAY_EX(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
IFLA_INET6_STATS, pattern,
|
|
inet6_stats_vals, 2, print_inet6_stats_val);
|
|
|
|
/* AF_INET6: IFLA_INET6_MCAST */
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
4, "IFLA_INET6_MCAST", pattern,
|
|
unknown_msg, print_quoted_hex, 2,
|
|
printf("\"\\xab\\xac\\xdb\\xcd\""));
|
|
|
|
/* AF_INET6: IFLA_INET6_CACHEINFO */
|
|
static const struct ifla_cacheinfo ci = {
|
|
0xbadc0ded, 0xfacebeef, 0xdecafeed, 0xdeadfeed,
|
|
};
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
5, "IFLA_INET6_CACHEINFO", pattern,
|
|
ci, print_quoted_hex, 2,
|
|
PRINT_FIELD_U("{", ci, max_reasm_len);
|
|
PRINT_FIELD_U(", ", ci, tstamp);
|
|
PRINT_FIELD_U(", ", ci, reachable_time);
|
|
PRINT_FIELD_U(", ", ci, retrans_time);
|
|
printf("}"));
|
|
|
|
/* AF_INET6: IFLA_INET6_ICMP6STATS */
|
|
uint64_t icmp6_stats_vals[] = {
|
|
0xdeadc0deda7aface, 0xdec0deedbadc0ded, 0xfacebeefdeadfeed,
|
|
0xdeadc0deda7afacd, 0xdec0deedbadc0dee, 0xfacebeefdeadfeef,
|
|
0xdeadc0deda7afacc
|
|
};
|
|
TEST_NESTED_NLATTR_ARRAY_EX(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
IFLA_INET6_ICMP6STATS, pattern,
|
|
icmp6_stats_vals, 2, print_icmp6_stats_val);
|
|
|
|
/* AF_INET6: IFLA_INET6_TOKEN */
|
|
uint8_t inet6_addr[16] = {
|
|
0xba, 0xdc, 0x0d, 0xed, 0xfa, 0xce, 0xbe, 0xef,
|
|
0xde, 0xca, 0xfe, 0xed, 0xde, 0xad, 0xfe, 0xed,
|
|
};
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg, print_AF_INET6_msg,
|
|
7, "IFLA_INET6_TOKEN", pattern,
|
|
inet6_addr, print_quoted_hex, 2,
|
|
printf("badc:ded:face:beef:deca:feed"
|
|
":dead:feed"));
|
|
|
|
/* AF_INET6: IFLA_INET6_ */
|
|
static const struct {
|
|
uint8_t flags;
|
|
const char *str;
|
|
} agms[] = {
|
|
{ 0x0, "IN6_ADDR_GEN_MODE_EUI64" },
|
|
{ 0x3, "IN6_ADDR_GEN_MODE_RANDOM" },
|
|
{ 0x4, "0x4 /* IN6_ADDR_GEN_MODE_??? */" },
|
|
{ 0xff, "0xff /* IN6_ADDR_GEN_MODE_??? */" },
|
|
};
|
|
|
|
for (size_t i = 0; i < ARRAY_SIZE(agms); i++) {
|
|
TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
|
|
init_AF_INET6_msg,
|
|
print_AF_INET6_msg,
|
|
8, "IFLA_INET6_ADDR_GEN_MODE",
|
|
pattern, agms[i].flags,
|
|
print_quoted_hex, 2,
|
|
printf("%s", agms[i].str));
|
|
}
|
|
|
|
|
|
puts("+++ exited with 0 +++");
|
|
return 0;
|
|
}
|