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/*
* Copyright (c) 2021 Eugene Syromyatnikov <evgsyr@gmail.com>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <inttypes.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include "test_netlink.h"
#include "test_nlattr.h"
#include <linux/ip.h>
#include <linux/rtnetlink.h>
#include <linux/mroute.h>
#include <linux/mroute6.h>
#include "xlat.h"
#include "xlat/addrfams.h"
static uint8_t af;
static char af_str[256];
/* uses global "af" variable */
static void
init_rtgen(struct nlmsghdr *const nlh, const unsigned int msg_len)
{
SET_STRUCT(struct nlmsghdr, nlh,
.nlmsg_len = msg_len,
.nlmsg_type = RTM_NEWCACHEREPORT,
.nlmsg_flags = NLM_F_EXCL|NLM_F_APPEND,
);
struct rtgenmsg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct rtgenmsg, msg,
.rtgen_family = af,
);
}
static void
print_rtgen(const unsigned int msg_len)
{
printf("{nlmsg_len=%u, nlmsg_type=" XLAT_FMT ", nlmsg_flags=" XLAT_FMT
", nlmsg_seq=0, nlmsg_pid=0}, {rtgen_family=%s}",
msg_len, XLAT_ARGS(RTM_NEWCACHEREPORT),
XLAT_ARGS(NLM_F_EXCL|NLM_F_APPEND), af_str);
}
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 rtgenmsg);
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN + 16);
static char pattern[4096];
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
/* unknown AF_* */
static uint8_t skip_afs[] = { RTNL_FAMILY_IPMR, RTNL_FAMILY_IP6MR };
struct {
struct rtgenmsg ATTRIBUTE_ALIGNED(NLMSG_ALIGNTO) hdr;
struct {
char str[sizeof(unknown_msg)];
} ATTRIBUTE_ALIGNED(NLMSG_ALIGNTO) payload;
} buf;
memcpy(buf.payload.str, unknown_msg, sizeof(unknown_msg));
size_t pos = 0;
for (size_t i = 0; i < 256; i++) {
if (pos < ARRAY_SIZE(skip_afs) && skip_afs[pos] == i) {
pos += 1;
continue;
}
buf.hdr.rtgen_family = i;
TEST_NETLINK_(fd, nlh0, RTM_NEWCACHEREPORT,
XLAT_KNOWN(0x60, "RTM_NEWCACHEREPORT"),
NLM_F_REPLACE,
XLAT_KNOWN(0x100, "NLM_F_REPLACE"),
sizeof(buf), &buf, sizeof(buf),
printf("{rtgen_family=%s}"
", \"\\xab\\xac\\xdb\\xcd\"",
sprintxval(addrfams, i,
"RTNL_FAMILY_???")));
}
/* RTNL_FAMILY_IPMR */
af = RTNL_FAMILY_IPMR;
snprintf(af_str, sizeof(af_str), XLAT_FMT, XLAT_ARGS(RTNL_FAMILY_IPMR));
/* RTNL_FAMILY_IPMR: unknown, undecoded */
static const struct strval16 unk_attrs[] = {
{ ENUM_KNOWN(0, IPMRA_CREPORT_UNSPEC) },
{ ENUM_KNOWN(0x5, IPMRA_CREPORT_PKT) },
{ ARG_XLAT_UNKNOWN(0x7, "IPMRA_CREPORT_???") },
{ ARG_XLAT_UNKNOWN(0x1ead, "IPMRA_CREPORT_???") },
};
for (size_t i = 0; i < ARRAY_SIZE(unk_attrs); i++) {
TEST_NLATTR_(fd, nlh0, hdrlen, init_rtgen, print_rtgen,
unk_attrs[i].val, unk_attrs[i].str,
16, pattern, 16,
print_quoted_hex(pattern, 16));
}
/* RTNL_FAMILY_IPMR: IPMRA_CREPORT_MSGTYPE */
static const struct strval8 mr_msg_types[] = {
{ ARG_XLAT_UNKNOWN(0, "IGMPMSG_???") },
{ ARG_XLAT_KNOWN(0x1, "IGMPMSG_NOCACHE") },
{ ARG_XLAT_KNOWN(0x2, "IGMPMSG_WRONGVIF") },
{ ARG_XLAT_KNOWN(0x3, "IGMPMSG_WHOLEPKT") },
{ ARG_XLAT_KNOWN(0x4, "IGMPMSG_WRVIFWHOLE") },
{ ARG_XLAT_UNKNOWN(0x5, "IGMPMSG_???") },
{ ARG_XLAT_UNKNOWN(0xca, "IGMPMSG_???") },
};
for (size_t i = 0; i < ARRAY_SIZE(mr_msg_types); i++) {
TEST_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
init_rtgen, print_rtgen,
IPMRA_CREPORT_MSGTYPE,
XLAT_KNOWN(0x1, "IPMRA_CREPORT_MSGTYPE"),
pattern, mr_msg_types[i].val, 1,
print_quoted_hex,
printf("%s", mr_msg_types[i].str));
}
/* RTNL_FAMILY_IPMR: u32 */
static const struct strval16 u32_mr_attrs[] = {
{ ENUM_KNOWN(0x2, IPMRA_CREPORT_VIF_ID) },
{ ENUM_KNOWN(0x6, IPMRA_CREPORT_TABLE) },
};
void *nlh_u32 = midtail_alloc(NLMSG_SPACE(hdrlen),
NLA_HDRLEN + sizeof(uint32_t));
for (size_t i = 0; i < ARRAY_SIZE(u32_mr_attrs); i++) {
check_u32_nlattr(fd, nlh_u32, hdrlen, init_rtgen, print_rtgen,
u32_mr_attrs[i].val, u32_mr_attrs[i].str,
pattern, 0);
}
/* RTNL_FAMILY_IPMR: in_addr */
static const struct strval16 in_addr_attrs[] = {
{ ENUM_KNOWN(0x3, IPMRA_CREPORT_SRC_ADDR) },
{ ENUM_KNOWN(0x4, IPMRA_CREPORT_DST_ADDR) },
};
static uint32_t ipv4_addr = BE32(0xdeadface);
for (size_t i = 0; i < ARRAY_SIZE(in_addr_attrs); i++) {
TEST_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
init_rtgen, print_rtgen,
in_addr_attrs[i].val,
in_addr_attrs[i].str,
pattern, ipv4_addr, 4,
print_quoted_hex,
printf(XLAT_KNOWN_FMT(
"\"\\xde\\xad\\xfa\\xce\"",
"inet_addr(\"222.173.250.206\")"))
);
}
/* RTNL_FAMILY_IP6MR */
af = RTNL_FAMILY_IP6MR;
snprintf(af_str, sizeof(af_str), XLAT_FMT,
XLAT_ARGS(RTNL_FAMILY_IP6MR));
/* RTNL_FAMILY_IP6MR: unknown, undecoded */
static const struct strval16 unk6_attrs[] = {
{ ENUM_KNOWN(0, IP6MRA_CREPORT_UNSPEC) },
{ ENUM_KNOWN(0x5, IP6MRA_CREPORT_PKT) },
{ ARG_XLAT_UNKNOWN(0x6, "IP6MRA_CREPORT_???") },
{ ARG_XLAT_UNKNOWN(0x1ead, "IP6MRA_CREPORT_???") },
};
for (size_t i = 0; i < ARRAY_SIZE(unk6_attrs); i++) {
TEST_NLATTR_(fd, nlh0, hdrlen, init_rtgen, print_rtgen,
unk6_attrs[i].val, unk6_attrs[i].str,
16, pattern, 16,
print_quoted_hex(pattern, 16));
}
/* RTNL_FAMILY_IP6MR: IP6MRA_CREPORT_MSGTYPE */
static const struct strval8 mr6_msg_types[] = {
{ ARG_XLAT_UNKNOWN(0, "MRT6MSG_???") },
{ ARG_XLAT_KNOWN(0x1, "MRT6MSG_NOCACHE") },
{ ARG_XLAT_KNOWN(0x2, "MRT6MSG_WRONGMIF") },
{ ARG_XLAT_KNOWN(0x3, "MRT6MSG_WHOLEPKT") },
{ ARG_XLAT_UNKNOWN(0x4, "MRT6MSG_???") },
{ ARG_XLAT_UNKNOWN(0xca, "MRT6MSG_???") },
};
for (size_t i = 0; i < ARRAY_SIZE(mr6_msg_types); i++) {
TEST_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
init_rtgen, print_rtgen,
IP6MRA_CREPORT_MSGTYPE,
XLAT_KNOWN(0x1,
"IP6MRA_CREPORT_MSGTYPE"),
pattern, mr6_msg_types[i].val, 1,
print_quoted_hex,
printf("%s", mr6_msg_types[i].str));
}
/* RTNL_FAMILY_IP6MR: u32 */
static const struct strval16 u32_mr6_attrs[] = {
{ ENUM_KNOWN(0x2, IP6MRA_CREPORT_MIF_ID) },
};
for (size_t i = 0; i < ARRAY_SIZE(u32_mr6_attrs); i++) {
check_u32_nlattr(fd, nlh_u32, hdrlen, init_rtgen, print_rtgen,
u32_mr6_attrs[i].val, u32_mr6_attrs[i].str,
pattern, 0);
}
/* RTNL_FAMILY_IPMR: in6_addr */
static const struct strval16 in6_addr_attrs[] = {
{ ENUM_KNOWN(0x3, IP6MRA_CREPORT_SRC_ADDR) },
{ ENUM_KNOWN(0x4, IP6MRA_CREPORT_DST_ADDR) },
};
uint8_t ipv6_addr[16] = {
0xba, 0xdc, 0x0d, 0xed, 0xfa, 0xce, 0xbe, 0xef,
0xde, 0xca, 0xfe, 0xed, 0xde, 0xad, 0xfe, 0xed,
};
for (size_t i = 0; i < ARRAY_SIZE(in6_addr_attrs); i++) {
TEST_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
init_rtgen, print_rtgen,
in6_addr_attrs[i].val,
in6_addr_attrs[i].str,
pattern, ipv6_addr, 16,
print_quoted_hex,
printf(XLAT_KNOWN_FMT(
"\"\\xba\\xdc\\x0d\\xed"
"\\xfa\\xce\\xbe\\xef"
"\\xde\\xca\\xfe\\xed"
"\\xde\\xad\\xfe\\xed\"",
"inet_pton(AF_INET6"
", \"badc:ded:face:beef"
":deca:feed:dead:feed\")")));
}
puts("+++ exited with 0 +++");
return 0;
}
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