nexmon – Rev 1
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/*
* lib/netfilter/ct_obj.c Conntrack Object
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
* Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
* Copyright (c) 2007 Secure Computing Corporation
*/
#include <sys/types.h>
#include <linux/netfilter/nfnetlink_conntrack.h>
#include <linux/netfilter/nf_conntrack_common.h>
#include <linux/netfilter/nf_conntrack_tcp.h>
#include <netlink-local.h>
#include <netlink/netfilter/nfnl.h>
#include <netlink/netfilter/ct.h>
/** @cond SKIP */
#define CT_ATTR_FAMILY (1UL << 0)
#define CT_ATTR_PROTO (1UL << 1)
#define CT_ATTR_TCP_STATE (1UL << 2)
#define CT_ATTR_STATUS (1UL << 3)
#define CT_ATTR_TIMEOUT (1UL << 4)
#define CT_ATTR_MARK (1UL << 5)
#define CT_ATTR_USE (1UL << 6)
#define CT_ATTR_ID (1UL << 7)
#define CT_ATTR_ORIG_SRC (1UL << 8)
#define CT_ATTR_ORIG_DST (1UL << 9)
#define CT_ATTR_ORIG_SRC_PORT (1UL << 10)
#define CT_ATTR_ORIG_DST_PORT (1UL << 11)
#define CT_ATTR_ORIG_ICMP_ID (1UL << 12)
#define CT_ATTR_ORIG_ICMP_TYPE (1UL << 13)
#define CT_ATTR_ORIG_ICMP_CODE (1UL << 14)
#define CT_ATTR_ORIG_PACKETS (1UL << 15)
#define CT_ATTR_ORIG_BYTES (1UL << 16)
#define CT_ATTR_REPL_SRC (1UL << 17)
#define CT_ATTR_REPL_DST (1UL << 18)
#define CT_ATTR_REPL_SRC_PORT (1UL << 19)
#define CT_ATTR_REPL_DST_PORT (1UL << 20)
#define CT_ATTR_REPL_ICMP_ID (1UL << 21)
#define CT_ATTR_REPL_ICMP_TYPE (1UL << 22)
#define CT_ATTR_REPL_ICMP_CODE (1UL << 23)
#define CT_ATTR_REPL_PACKETS (1UL << 24)
#define CT_ATTR_REPL_BYTES (1UL << 25)
/** @endcond */
static void ct_free_data(struct nl_object *c)
{
struct nfnl_ct *ct = (struct nfnl_ct *) c;
if (ct == NULL)
return;
nl_addr_put(ct->ct_orig.src);
nl_addr_put(ct->ct_orig.dst);
nl_addr_put(ct->ct_repl.src);
nl_addr_put(ct->ct_repl.dst);
}
static int ct_clone(struct nl_object *_dst, struct nl_object *_src)
{
struct nfnl_ct *dst = (struct nfnl_ct *) _dst;
struct nfnl_ct *src = (struct nfnl_ct *) _src;
struct nl_addr *addr;
if (src->ct_orig.src) {
addr = nl_addr_clone(src->ct_orig.src);
if (!addr)
return -NLE_NOMEM;
dst->ct_orig.src = addr;
}
if (src->ct_orig.dst) {
addr = nl_addr_clone(src->ct_orig.dst);
if (!addr)
return -NLE_NOMEM;
dst->ct_orig.dst = addr;
}
if (src->ct_repl.src) {
addr = nl_addr_clone(src->ct_repl.src);
if (!addr)
return -NLE_NOMEM;
dst->ct_repl.src = addr;
}
if (src->ct_repl.dst) {
addr = nl_addr_clone(src->ct_repl.dst);
if (!addr)
return -NLE_NOMEM;
dst->ct_repl.dst = addr;
}
return 0;
}
static void dump_addr(struct nl_dump_params *p, struct nl_addr *addr, int port)
{
char buf[64];
if (addr)
nl_dump(p, "%s", nl_addr2str(addr, buf, sizeof(buf)));
if (port)
nl_dump(p, ":%u ", port);
else if (addr)
nl_dump(p, " ");
}
static void dump_icmp(struct nl_dump_params *p, struct nfnl_ct *ct, int reply)
{
if (nfnl_ct_test_icmp_type(ct, reply))
nl_dump(p, "icmp type %d ", nfnl_ct_get_icmp_type(ct, reply));
if (nfnl_ct_test_icmp_type(ct, reply))
nl_dump(p, "code %d ", nfnl_ct_get_icmp_code(ct, reply));
if (nfnl_ct_test_icmp_type(ct, reply))
nl_dump(p, "id %d ", nfnl_ct_get_icmp_id(ct, reply));
}
static void ct_dump_tuples(struct nfnl_ct *ct, struct nl_dump_params *p)
{
struct nl_addr *orig_src, *orig_dst, *reply_src, *reply_dst;
int orig_sport = 0, orig_dport = 0, reply_sport = 0, reply_dport = 0;
int sync = 0;
orig_src = nfnl_ct_get_src(ct, 0);
orig_dst = nfnl_ct_get_dst(ct, 0);
reply_src = nfnl_ct_get_src(ct, 1);
reply_dst = nfnl_ct_get_dst(ct, 1);
if (nfnl_ct_test_src_port(ct, 0))
orig_sport = nfnl_ct_get_src_port(ct, 0);
if (nfnl_ct_test_dst_port(ct, 0))
orig_dport = nfnl_ct_get_dst_port(ct, 0);
if (nfnl_ct_test_src_port(ct, 1))
reply_sport = nfnl_ct_get_src_port(ct, 1);
if (nfnl_ct_test_dst_port(ct, 1))
reply_dport = nfnl_ct_get_dst_port(ct, 1);
if (orig_src && orig_dst && reply_src && reply_dst &&
orig_sport == reply_dport && orig_dport == reply_sport &&
!nl_addr_cmp(orig_src, reply_dst) &&
!nl_addr_cmp(orig_dst, reply_src))
sync = 1;
dump_addr(p, orig_src, orig_sport);
nl_dump(p, sync ? "<-> " : "-> ");
dump_addr(p, orig_dst, orig_dport);
dump_icmp(p, ct, 0);
if (!sync) {
dump_addr(p, reply_src, reply_sport);
nl_dump(p, "<- ");
dump_addr(p, reply_dst, reply_dport);
dump_icmp(p, ct, 1);
}
}
/* Compatible with /proc/net/nf_conntrack */
static void ct_dump_line(struct nl_object *a, struct nl_dump_params *p)
{
struct nfnl_ct *ct = (struct nfnl_ct *) a;
char buf[64];
nl_new_line(p);
if (nfnl_ct_test_proto(ct))
nl_dump(p, "%s ",
nl_ip_proto2str(nfnl_ct_get_proto(ct), buf, sizeof(buf)));
if (nfnl_ct_test_tcp_state(ct))
nl_dump(p, "%s ",
nfnl_ct_tcp_state2str(nfnl_ct_get_tcp_state(ct),
buf, sizeof(buf)));
ct_dump_tuples(ct, p);
if (nfnl_ct_test_mark(ct) && nfnl_ct_get_mark(ct))
nl_dump(p, "mark %u ", nfnl_ct_get_mark(ct));
nl_dump(p, "\n");
}
static void ct_dump_details(struct nl_object *a, struct nl_dump_params *p)
{
struct nfnl_ct *ct = (struct nfnl_ct *) a;
char buf[64];
int fp = 0;
ct_dump_line(a, p);
nl_dump(p, " id 0x%x ", ct->ct_id);
nl_dump_line(p, "family %s ",
nl_af2str(ct->ct_family, buf, sizeof(buf)));
if (nfnl_ct_test_use(ct))
nl_dump(p, "refcnt %u ", nfnl_ct_get_use(ct));
if (nfnl_ct_test_timeout(ct)) {
uint64_t timeout_ms = nfnl_ct_get_timeout(ct) * 1000UL;
nl_dump(p, "timeout %s ",
nl_msec2str(timeout_ms, buf, sizeof(buf)));
}
if (ct->ct_status)
nl_dump(p, "<");
#define PRINT_FLAG(str) \
{ nl_dump(p, "%s%s", fp++ ? "," : "", (str)); }
if (ct->ct_status & IPS_EXPECTED)
PRINT_FLAG("EXPECTED");
if (!(ct->ct_status & IPS_SEEN_REPLY))
PRINT_FLAG("NOREPLY");
if (ct->ct_status & IPS_ASSURED)
PRINT_FLAG("ASSURED");
if (!(ct->ct_status & IPS_CONFIRMED))
PRINT_FLAG("NOTSENT");
if (ct->ct_status & IPS_SRC_NAT)
PRINT_FLAG("SNAT");
if (ct->ct_status & IPS_DST_NAT)
PRINT_FLAG("DNAT");
if (ct->ct_status & IPS_SEQ_ADJUST)
PRINT_FLAG("SEQADJUST");
if (!(ct->ct_status & IPS_SRC_NAT_DONE))
PRINT_FLAG("SNAT_INIT");
if (!(ct->ct_status & IPS_DST_NAT_DONE))
PRINT_FLAG("DNAT_INIT");
if (ct->ct_status & IPS_DYING)
PRINT_FLAG("DYING");
if (ct->ct_status & IPS_FIXED_TIMEOUT)
PRINT_FLAG("FIXED_TIMEOUT");
#undef PRINT_FLAG
if (ct->ct_status)
nl_dump(p, ">");
nl_dump(p, "\n");
}
static void ct_dump_stats(struct nl_object *a, struct nl_dump_params *p)
{
struct nfnl_ct *ct = (struct nfnl_ct *) a;
double res;
char *unit;
ct_dump_details(a, p);
nl_dump_line(p, " # packets volume\n");
res = nl_cancel_down_bytes(nfnl_ct_get_bytes(ct, 1), &unit);
nl_dump_line(p, " rx %10llu %7.2f %s\n",
nfnl_ct_get_packets(ct, 1), res, unit);
res = nl_cancel_down_bytes(nfnl_ct_get_bytes(ct, 0), &unit);
nl_dump_line(p, " tx %10llu %7.2f %s\n",
nfnl_ct_get_packets(ct, 0), res, unit);
}
static int ct_compare(struct nl_object *_a, struct nl_object *_b,
uint32_t attrs, int flags)
{
struct nfnl_ct *a = (struct nfnl_ct *) _a;
struct nfnl_ct *b = (struct nfnl_ct *) _b;
int diff = 0;
#define CT_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, CT_ATTR_##ATTR, a, b, EXPR)
#define CT_DIFF_VAL(ATTR, FIELD) CT_DIFF(ATTR, a->FIELD != b->FIELD)
#define CT_DIFF_ADDR(ATTR, FIELD) \
((flags & LOOSE_COMPARISON) \
? CT_DIFF(ATTR, nl_addr_cmp_prefix(a->FIELD, b->FIELD)) \
: CT_DIFF(ATTR, nl_addr_cmp(a->FIELD, b->FIELD)))
diff |= CT_DIFF_VAL(FAMILY, ct_family);
diff |= CT_DIFF_VAL(PROTO, ct_proto);
diff |= CT_DIFF_VAL(TCP_STATE, ct_protoinfo.tcp.state);
diff |= CT_DIFF_VAL(TIMEOUT, ct_timeout);
diff |= CT_DIFF_VAL(MARK, ct_mark);
diff |= CT_DIFF_VAL(USE, ct_use);
diff |= CT_DIFF_VAL(ID, ct_id);
diff |= CT_DIFF_ADDR(ORIG_SRC, ct_orig.src);
diff |= CT_DIFF_ADDR(ORIG_DST, ct_orig.dst);
diff |= CT_DIFF_VAL(ORIG_SRC_PORT, ct_orig.proto.port.src);
diff |= CT_DIFF_VAL(ORIG_DST_PORT, ct_orig.proto.port.dst);
diff |= CT_DIFF_VAL(ORIG_ICMP_ID, ct_orig.proto.icmp.id);
diff |= CT_DIFF_VAL(ORIG_ICMP_TYPE, ct_orig.proto.icmp.type);
diff |= CT_DIFF_VAL(ORIG_ICMP_CODE, ct_orig.proto.icmp.code);
diff |= CT_DIFF_VAL(ORIG_PACKETS, ct_orig.packets);
diff |= CT_DIFF_VAL(ORIG_BYTES, ct_orig.bytes);
diff |= CT_DIFF_ADDR(REPL_SRC, ct_repl.src);
diff |= CT_DIFF_ADDR(REPL_DST, ct_repl.dst);
diff |= CT_DIFF_VAL(REPL_SRC_PORT, ct_repl.proto.port.src);
diff |= CT_DIFF_VAL(REPL_DST_PORT, ct_repl.proto.port.dst);
diff |= CT_DIFF_VAL(REPL_ICMP_ID, ct_repl.proto.icmp.id);
diff |= CT_DIFF_VAL(REPL_ICMP_TYPE, ct_repl.proto.icmp.type);
diff |= CT_DIFF_VAL(REPL_ICMP_CODE, ct_repl.proto.icmp.code);
diff |= CT_DIFF_VAL(REPL_PACKETS, ct_repl.packets);
diff |= CT_DIFF_VAL(REPL_BYTES, ct_repl.bytes);
if (flags & LOOSE_COMPARISON)
diff |= CT_DIFF(STATUS, (a->ct_status ^ b->ct_status) &
b->ct_status_mask);
else
diff |= CT_DIFF(STATUS, a->ct_status != b->ct_status);
#undef CT_DIFF
#undef CT_DIFF_VAL
#undef CT_DIFF_ADDR
return diff;
}
static struct trans_tbl ct_attrs[] = {
__ADD(CT_ATTR_FAMILY, family)
__ADD(CT_ATTR_PROTO, proto)
__ADD(CT_ATTR_TCP_STATE, tcpstate)
__ADD(CT_ATTR_STATUS, status)
__ADD(CT_ATTR_TIMEOUT, timeout)
__ADD(CT_ATTR_MARK, mark)
__ADD(CT_ATTR_USE, use)
__ADD(CT_ATTR_ID, id)
__ADD(CT_ATTR_ORIG_SRC, origsrc)
__ADD(CT_ATTR_ORIG_DST, origdst)
__ADD(CT_ATTR_ORIG_SRC_PORT, origsrcport)
__ADD(CT_ATTR_ORIG_DST_PORT, origdstport)
__ADD(CT_ATTR_ORIG_ICMP_ID, origicmpid)
__ADD(CT_ATTR_ORIG_ICMP_TYPE, origicmptype)
__ADD(CT_ATTR_ORIG_ICMP_CODE, origicmpcode)
__ADD(CT_ATTR_ORIG_PACKETS, origpackets)
__ADD(CT_ATTR_ORIG_BYTES, origbytes)
__ADD(CT_ATTR_REPL_SRC, replysrc)
__ADD(CT_ATTR_REPL_DST, replydst)
__ADD(CT_ATTR_REPL_SRC_PORT, replysrcport)
__ADD(CT_ATTR_REPL_DST_PORT, replydstport)
__ADD(CT_ATTR_REPL_ICMP_ID, replyicmpid)
__ADD(CT_ATTR_REPL_ICMP_TYPE, replyicmptype)
__ADD(CT_ATTR_REPL_ICMP_CODE, replyicmpcode)
__ADD(CT_ATTR_REPL_PACKETS, replypackets)
__ADD(CT_ATTR_REPL_BYTES, replybytes)
};
static char *ct_attrs2str(int attrs, char *buf, size_t len)
{
return __flags2str(attrs, buf, len, ct_attrs, ARRAY_SIZE(ct_attrs));
}
/**
* @name Allocation/Freeing
* @{
*/
struct nfnl_ct *nfnl_ct_alloc(void)
{
return (struct nfnl_ct *) nl_object_alloc(&ct_obj_ops);
}
void nfnl_ct_get(struct nfnl_ct *ct)
{
nl_object_get((struct nl_object *) ct);
}
void nfnl_ct_put(struct nfnl_ct *ct)
{
nl_object_put((struct nl_object *) ct);
}
/** @} */
/**
* @name Attributes
* @{
*/
void nfnl_ct_set_family(struct nfnl_ct *ct, uint8_t family)
{
ct->ct_family = family;
ct->ce_mask |= CT_ATTR_FAMILY;
}
uint8_t nfnl_ct_get_family(const struct nfnl_ct *ct)
{
if (ct->ce_mask & CT_ATTR_FAMILY)
return ct->ct_family;
else
return AF_UNSPEC;
}
void nfnl_ct_set_proto(struct nfnl_ct *ct, uint8_t proto)
{
ct->ct_proto = proto;
ct->ce_mask |= CT_ATTR_PROTO;
}
int nfnl_ct_test_proto(const struct nfnl_ct *ct)
{
return !!(ct->ce_mask & CT_ATTR_PROTO);
}
uint8_t nfnl_ct_get_proto(const struct nfnl_ct *ct)
{
return ct->ct_proto;
}
void nfnl_ct_set_tcp_state(struct nfnl_ct *ct, uint8_t state)
{
ct->ct_protoinfo.tcp.state = state;
ct->ce_mask |= CT_ATTR_TCP_STATE;
}
int nfnl_ct_test_tcp_state(const struct nfnl_ct *ct)
{
return !!(ct->ce_mask & CT_ATTR_TCP_STATE);
}
uint8_t nfnl_ct_get_tcp_state(const struct nfnl_ct *ct)
{
return ct->ct_protoinfo.tcp.state;
}
static struct trans_tbl tcp_states[] = {
__ADD(TCP_CONNTRACK_NONE,NONE)
__ADD(TCP_CONNTRACK_SYN_SENT,SYN_SENT)
__ADD(TCP_CONNTRACK_SYN_RECV,SYN_RECV)
__ADD(TCP_CONNTRACK_ESTABLISHED,ESTABLISHED)
__ADD(TCP_CONNTRACK_FIN_WAIT,FIN_WAIT)
__ADD(TCP_CONNTRACK_CLOSE_WAIT,CLOSE_WAIT)
__ADD(TCP_CONNTRACK_LAST_ACK,LAST_ACK)
__ADD(TCP_CONNTRACK_TIME_WAIT,TIME_WAIT)
__ADD(TCP_CONNTRACK_CLOSE,CLOSE)
__ADD(TCP_CONNTRACK_LISTEN,LISTEN)
};
char *nfnl_ct_tcp_state2str(uint8_t state, char *buf, size_t len)
{
return __type2str(state, buf, len, tcp_states, ARRAY_SIZE(tcp_states));
}
int nfnl_ct_str2tcp_state(const char *name)
{
return __str2type(name, tcp_states, ARRAY_SIZE(tcp_states));
}
void nfnl_ct_set_status(struct nfnl_ct *ct, uint32_t status)
{
ct->ct_status_mask |= status;
ct->ct_status |= status;
ct->ce_mask |= CT_ATTR_STATUS;
}
void nfnl_ct_unset_status(struct nfnl_ct *ct, uint32_t status)
{
ct->ct_status_mask |= status;
ct->ct_status &= ~status;
ct->ce_mask |= CT_ATTR_STATUS;
}
uint32_t nfnl_ct_get_status(const struct nfnl_ct *ct)
{
return ct->ct_status;
}
static struct trans_tbl status_flags[] = {
__ADD(IPS_EXPECTED, expected)
__ADD(IPS_SEEN_REPLY, seen_reply)
__ADD(IPS_ASSURED, assured)
__ADD(IPS_CONFIRMED, confirmed)
__ADD(IPS_SRC_NAT, snat)
__ADD(IPS_DST_NAT, dnat)
__ADD(IPS_SEQ_ADJUST, seqadjust)
__ADD(IPS_SRC_NAT_DONE, snat_done)
__ADD(IPS_DST_NAT_DONE, dnat_done)
__ADD(IPS_DYING, dying)
__ADD(IPS_FIXED_TIMEOUT, fixed_timeout)
};
char * nfnl_ct_status2str(int flags, char *buf, size_t len)
{
return __flags2str(flags, buf, len, status_flags,
ARRAY_SIZE(status_flags));
}
int nfnl_ct_str2status(const char *name)
{
return __str2flags(name, status_flags, ARRAY_SIZE(status_flags));
}
void nfnl_ct_set_timeout(struct nfnl_ct *ct, uint32_t timeout)
{
ct->ct_timeout = timeout;
ct->ce_mask |= CT_ATTR_TIMEOUT;
}
int nfnl_ct_test_timeout(const struct nfnl_ct *ct)
{
return !!(ct->ce_mask & CT_ATTR_TIMEOUT);
}
uint32_t nfnl_ct_get_timeout(const struct nfnl_ct *ct)
{
return ct->ct_timeout;
}
void nfnl_ct_set_mark(struct nfnl_ct *ct, uint32_t mark)
{
ct->ct_mark = mark;
ct->ce_mask |= CT_ATTR_MARK;
}
int nfnl_ct_test_mark(const struct nfnl_ct *ct)
{
return !!(ct->ce_mask & CT_ATTR_MARK);
}
uint32_t nfnl_ct_get_mark(const struct nfnl_ct *ct)
{
return ct->ct_mark;
}
void nfnl_ct_set_use(struct nfnl_ct *ct, uint32_t use)
{
ct->ct_use = use;
ct->ce_mask |= CT_ATTR_USE;
}
int nfnl_ct_test_use(const struct nfnl_ct *ct)
{
return !!(ct->ce_mask & CT_ATTR_USE);
}
uint32_t nfnl_ct_get_use(const struct nfnl_ct *ct)
{
return ct->ct_use;
}
void nfnl_ct_set_id(struct nfnl_ct *ct, uint32_t id)
{
ct->ct_id = id;
ct->ce_mask |= CT_ATTR_ID;
}
int nfnl_ct_test_id(const struct nfnl_ct *ct)
{
return !!(ct->ce_mask & CT_ATTR_ID);
}
uint32_t nfnl_ct_get_id(const struct nfnl_ct *ct)
{
return ct->ct_id;
}
static int ct_set_addr(struct nfnl_ct *ct, struct nl_addr *addr,
int attr, struct nl_addr ** ct_addr)
{
if (ct->ce_mask & CT_ATTR_FAMILY) {
if (addr->a_family != ct->ct_family)
return -NLE_AF_MISMATCH;
} else
nfnl_ct_set_family(ct, addr->a_family);
if (*ct_addr)
nl_addr_put(*ct_addr);
nl_addr_get(addr);
*ct_addr = addr;
ct->ce_mask |= attr;
return 0;
}
int nfnl_ct_set_src(struct nfnl_ct *ct, int repl, struct nl_addr *addr)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_SRC : CT_ATTR_ORIG_SRC;
return ct_set_addr(ct, addr, attr, &dir->src);
}
int nfnl_ct_set_dst(struct nfnl_ct *ct, int repl, struct nl_addr *addr)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_DST : CT_ATTR_ORIG_DST;
return ct_set_addr(ct, addr, attr, &dir->dst);
}
struct nl_addr *nfnl_ct_get_src(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_SRC : CT_ATTR_ORIG_SRC;
if (!(ct->ce_mask & attr))
return NULL;
return dir->src;
}
struct nl_addr *nfnl_ct_get_dst(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_DST : CT_ATTR_ORIG_DST;
if (!(ct->ce_mask & attr))
return NULL;
return dir->dst;
}
void nfnl_ct_set_src_port(struct nfnl_ct *ct, int repl, uint16_t port)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_SRC_PORT : CT_ATTR_ORIG_SRC_PORT;
dir->proto.port.src = port;
ct->ce_mask |= attr;
}
int nfnl_ct_test_src_port(const struct nfnl_ct *ct, int repl)
{
int attr = repl ? CT_ATTR_REPL_SRC_PORT : CT_ATTR_ORIG_SRC_PORT;
return !!(ct->ce_mask & attr);
}
uint16_t nfnl_ct_get_src_port(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
return dir->proto.port.src;
}
void nfnl_ct_set_dst_port(struct nfnl_ct *ct, int repl, uint16_t port)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_DST_PORT : CT_ATTR_ORIG_DST_PORT;
dir->proto.port.dst = port;
ct->ce_mask |= attr;
}
int nfnl_ct_test_dst_port(const struct nfnl_ct *ct, int repl)
{
int attr = repl ? CT_ATTR_REPL_DST_PORT : CT_ATTR_ORIG_DST_PORT;
return !!(ct->ce_mask & attr);
}
uint16_t nfnl_ct_get_dst_port(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
return dir->proto.port.dst;
}
void nfnl_ct_set_icmp_id(struct nfnl_ct *ct, int repl, uint16_t id)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_ICMP_ID : CT_ATTR_ORIG_ICMP_ID;
dir->proto.icmp.id = id;
ct->ce_mask |= attr;
}
int nfnl_ct_test_icmp_id(const struct nfnl_ct *ct, int repl)
{
int attr = repl ? CT_ATTR_REPL_ICMP_ID : CT_ATTR_ORIG_ICMP_ID;
return !!(ct->ce_mask & attr);
}
uint16_t nfnl_ct_get_icmp_id(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
return dir->proto.icmp.id;
}
void nfnl_ct_set_icmp_type(struct nfnl_ct *ct, int repl, uint8_t type)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_ICMP_TYPE : CT_ATTR_ORIG_ICMP_TYPE;
dir->proto.icmp.type = type;
ct->ce_mask |= attr;
}
int nfnl_ct_test_icmp_type(const struct nfnl_ct *ct, int repl)
{
int attr = repl ? CT_ATTR_REPL_ICMP_TYPE : CT_ATTR_ORIG_ICMP_TYPE;
return !!(ct->ce_mask & attr);
}
uint8_t nfnl_ct_get_icmp_type(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
return dir->proto.icmp.type;
}
void nfnl_ct_set_icmp_code(struct nfnl_ct *ct, int repl, uint8_t code)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_ICMP_CODE : CT_ATTR_ORIG_ICMP_CODE;
dir->proto.icmp.code = code;
ct->ce_mask |= attr;
}
int nfnl_ct_test_icmp_code(const struct nfnl_ct *ct, int repl)
{
int attr = repl ? CT_ATTR_REPL_ICMP_CODE : CT_ATTR_ORIG_ICMP_CODE;
return !!(ct->ce_mask & attr);
}
uint8_t nfnl_ct_get_icmp_code(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
return dir->proto.icmp.code;
}
void nfnl_ct_set_packets(struct nfnl_ct *ct, int repl, uint64_t packets)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_PACKETS : CT_ATTR_ORIG_PACKETS;
dir->packets = packets;
ct->ce_mask |= attr;
}
int nfnl_ct_test_packets(const struct nfnl_ct *ct, int repl)
{
int attr = repl ? CT_ATTR_REPL_PACKETS : CT_ATTR_ORIG_PACKETS;
return !!(ct->ce_mask & attr);
}
uint64_t nfnl_ct_get_packets(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
return dir->packets;
}
void nfnl_ct_set_bytes(struct nfnl_ct *ct, int repl, uint64_t bytes)
{
struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
int attr = repl ? CT_ATTR_REPL_BYTES : CT_ATTR_ORIG_BYTES;
dir->bytes = bytes;
ct->ce_mask |= attr;
}
int nfnl_ct_test_bytes(const struct nfnl_ct *ct, int repl)
{
int attr = repl ? CT_ATTR_REPL_BYTES : CT_ATTR_ORIG_BYTES;
return !!(ct->ce_mask & attr);
}
uint64_t nfnl_ct_get_bytes(const struct nfnl_ct *ct, int repl)
{
const struct nfnl_ct_dir *dir = repl ? &ct->ct_repl : &ct->ct_orig;
return dir->bytes;
}
/** @} */
struct nl_object_ops ct_obj_ops = {
.oo_name = "netfilter/ct",
.oo_size = sizeof(struct nfnl_ct),
.oo_free_data = ct_free_data,
.oo_clone = ct_clone,
.oo_dump = {
[NL_DUMP_LINE] = ct_dump_line,
[NL_DUMP_DETAILS] = ct_dump_details,
[NL_DUMP_STATS] = ct_dump_stats,
},
.oo_compare = ct_compare,
.oo_attrs2str = ct_attrs2str,
};
/** @} */