23374838686

Committed 21 Mar 2026 07:29AM UTC coverage: 59.341% (-20.0%) from 79.315%

Build # 23374838686

Build Type

Pull #15075

github

Committed by

web-flow

Commit Message

Merge 90b4e834f into 6587e363a

Pull Request Pull Request #15075: Stack 8001 v16.4

Coverage Stats

38 of 70 new or added lines in 10 files covered. (54.29%)

34165 existing lines in 563 files now uncovered.

119621 of 201584 relevant lines covered (59.34%)

650666.92 hits per line

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0.0

/src/util-lua-dns.c

/* Copyright (C) 2014-2025 Open Information Security Foundation
 *
 * You can copy, redistribute or modify this Program under the terms of
 * the GNU General Public License version 2 as published by the Free
 * Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

/**
 * \file
 *
 * \author Eric Leblond <eric@regit.org>
 *
 */

#include "suricata-common.h"
#include "util-lua-dns.h"
#include "util-lua.h"
#include "util-lua-common.h"
#include "rust.h"

// #define DNS_MT "suricata:dns:tx"
static const char dns_tx[] = "suricata:dns:tx";

struct LuaTx {
    DNSTransaction *tx;
};

static int LuaDnsGetTx(lua_State *L)
{
    if (!(LuaStateNeedProto(L, ALPROTO_DNS))) {
        return LuaCallbackError(L, "error: protocol not dns");
    }
    DNSTransaction *tx = LuaStateGetTX(L);
    if (tx == NULL) {
        return LuaCallbackError(L, "error: no tx available");
    }
    struct LuaTx *ltx = (struct LuaTx *)lua_newuserdata(L, sizeof(*ltx));
    if (ltx == NULL) {
        return LuaCallbackError(L, "error: fail to allocate user data");
    }
    ltx->tx = tx;

    luaL_getmetatable(L, dns_tx);
    lua_setmetatable(L, -2);

    return 1;
}

static int LuaDnsTxGetRrname(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    return SCDnsLuaGetRrname(L, tx->tx);
}

static int LuaDnsTxGetTxid(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    return SCDnsLuaGetTxId(L, tx->tx);
}

static int LuaDnsTxGetRcode(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    return SCDnsLuaGetRcode(L, tx->tx);
}

static int LuaDnsTxGetRcodeString(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    return SCDnsLuaGetRcodeString(L, tx->tx);
}

static int LuaDnsTxGetRecursionDesired(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    uint16_t flags = SCDnsTxGetResponseFlags(tx->tx);
    int recursion_desired = flags & 0x0080 ? 1 : 0;
    lua_pushboolean(L, recursion_desired);
    return 1;
}

static int LuaDnsTxGetQueries(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    return SCDnsLuaGetQueryTable(L, tx->tx);
}

static int LuaDnsTxGetAnswers(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    return SCDnsLuaGetAnswerTable(L, tx->tx);
}

static int LuaDnsTxGetAuthorities(lua_State *L)
{
    struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);
    if (tx == NULL) {
        lua_pushnil(L);
        return 1;
    }
    return SCDnsLuaGetAuthorityTable(L, tx->tx);
}

static const struct luaL_Reg txlib[] = {
    // clang-format off
    { "answers", LuaDnsTxGetAnswers },
    { "authorities", LuaDnsTxGetAuthorities },
    { "queries", LuaDnsTxGetQueries },
    { "rcode", LuaDnsTxGetRcode },
    { "rcode_string", LuaDnsTxGetRcodeString },
    { "recursion_desired", LuaDnsTxGetRecursionDesired },
    { "rrname", LuaDnsTxGetRrname },
    { "txid", LuaDnsTxGetTxid },
    { NULL, NULL, }
    // clang-format on
};

static const struct luaL_Reg dnslib[] = {
    // clang-format off
    { "get_tx", LuaDnsGetTx },
    { NULL, NULL,},
    // clang-format on
};

int SCLuaLoadDnsLib(lua_State *L)
{
    luaL_newmetatable(L, dns_tx);
    lua_pushvalue(L, -1);
    lua_setfield(L, -2, "__index");
    luaL_setfuncs(L, txlib, 0);

    luaL_newlib(L, dnslib);
    return 1;
}

1	/* Copyright (C) 2014-2025 Open Information Security Foundation
2	*
3	* You can copy, redistribute or modify this Program under the terms of
4	* the GNU General Public License version 2 as published by the Free
5	* Software Foundation.
6	*
7	* This program is distributed in the hope that it will be useful,
8	* but WITHOUT ANY WARRANTY; without even the implied warranty of
9	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10	* GNU General Public License for more details.
11	*
12	* You should have received a copy of the GNU General Public License
13	* version 2 along with this program; if not, write to the Free Software
14	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15	* 02110-1301, USA.
16	*/
17
18	/**
19	* \file
20	*
21	* \author Eric Leblond <eric@regit.org>
22	*
23	*/
24
25	#include "suricata-common.h"
26	#include "util-lua-dns.h"
27	#include "util-lua.h"
28	#include "util-lua-common.h"
29	#include "rust.h"
30
31	// #define DNS_MT "suricata:dns:tx"
32	static const char dns_tx[] = "suricata:dns:tx";
33
34	struct LuaTx {
35	DNSTransaction *tx;
36	};
37
38	static int LuaDnsGetTx(lua_State *L)
UNCOV 39	{	×
UNCOV 40	if (!(LuaStateNeedProto(L, ALPROTO_DNS))) {	×
41	return LuaCallbackError(L, "error: protocol not dns");	×
42	}	×
UNCOV 43	DNSTransaction *tx = LuaStateGetTX(L);	×
UNCOV 44	if (tx == NULL) {	×
45	return LuaCallbackError(L, "error: no tx available");	×
46	}	×
UNCOV 47	struct LuaTx ltx = (struct LuaTx )lua_newuserdata(L, sizeof(*ltx));	×
UNCOV 48	if (ltx == NULL) {	×
49	return LuaCallbackError(L, "error: fail to allocate user data");	×
50	}	×
UNCOV 51	ltx->tx = tx;	×
52
UNCOV 53	luaL_getmetatable(L, dns_tx);	×
UNCOV 54	lua_setmetatable(L, -2);	×
55
UNCOV 56	return 1;	×
UNCOV 57	}	×
58
59	static int LuaDnsTxGetRrname(lua_State *L)
UNCOV 60	{	×
UNCOV 61	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
UNCOV 62	if (tx == NULL) {	×
63	lua_pushnil(L);	×
64	return 1;	×
65	}	×
UNCOV 66	return SCDnsLuaGetRrname(L, tx->tx);	×
UNCOV 67	}	×
68
69	static int LuaDnsTxGetTxid(lua_State *L)
UNCOV 70	{	×
UNCOV 71	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
UNCOV 72	if (tx == NULL) {	×
73	lua_pushnil(L);	×
74	return 1;	×
75	}	×
UNCOV 76	return SCDnsLuaGetTxId(L, tx->tx);	×
UNCOV 77	}	×
78
79	static int LuaDnsTxGetRcode(lua_State *L)
UNCOV 80	{	×
UNCOV 81	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
UNCOV 82	if (tx == NULL) {	×
83	lua_pushnil(L);	×
84	return 1;	×
85	}	×
UNCOV 86	return SCDnsLuaGetRcode(L, tx->tx);	×
UNCOV 87	}	×
88
89	static int LuaDnsTxGetRcodeString(lua_State *L)
UNCOV 90	{	×
UNCOV 91	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
UNCOV 92	if (tx == NULL) {	×
93	lua_pushnil(L);	×
94	return 1;	×
95	}	×
UNCOV 96	return SCDnsLuaGetRcodeString(L, tx->tx);	×
UNCOV 97	}	×
98
99	static int LuaDnsTxGetRecursionDesired(lua_State *L)
100	{	×
101	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
102	if (tx == NULL) {	×
103	lua_pushnil(L);	×
104	return 1;	×
105	}	×
106	uint16_t flags = SCDnsTxGetResponseFlags(tx->tx);	×
107	int recursion_desired = flags & 0x0080 ? 1 : 0;	×
108	lua_pushboolean(L, recursion_desired);	×
109	return 1;	×
110	}	×
111
112	static int LuaDnsTxGetQueries(lua_State *L)
UNCOV 113	{	×
UNCOV 114	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
UNCOV 115	if (tx == NULL) {	×
116	lua_pushnil(L);	×
117	return 1;	×
118	}	×
UNCOV 119	return SCDnsLuaGetQueryTable(L, tx->tx);	×
UNCOV 120	}	×
121
122	static int LuaDnsTxGetAnswers(lua_State *L)
UNCOV 123	{	×
UNCOV 124	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
UNCOV 125	if (tx == NULL) {	×
126	lua_pushnil(L);	×
127	return 1;	×
128	}	×
UNCOV 129	return SCDnsLuaGetAnswerTable(L, tx->tx);	×
UNCOV 130	}	×
131
132	static int LuaDnsTxGetAuthorities(lua_State *L)
UNCOV 133	{	×
UNCOV 134	struct LuaTx *tx = luaL_testudata(L, 1, dns_tx);	×
UNCOV 135	if (tx == NULL) {	×
136	lua_pushnil(L);	×
137	return 1;	×
138	}	×
UNCOV 139	return SCDnsLuaGetAuthorityTable(L, tx->tx);	×
UNCOV 140	}	×
141
142	static const struct luaL_Reg txlib[] = {
143	// clang-format off
144	{ "answers", LuaDnsTxGetAnswers },
145	{ "authorities", LuaDnsTxGetAuthorities },
146	{ "queries", LuaDnsTxGetQueries },
147	{ "rcode", LuaDnsTxGetRcode },
148	{ "rcode_string", LuaDnsTxGetRcodeString },
149	{ "recursion_desired", LuaDnsTxGetRecursionDesired },
150	{ "rrname", LuaDnsTxGetRrname },
151	{ "txid", LuaDnsTxGetTxid },
152	{ NULL, NULL, }
153	// clang-format on
154	};
155
156	static const struct luaL_Reg dnslib[] = {
157	// clang-format off
158	{ "get_tx", LuaDnsGetTx },
159	{ NULL, NULL,},
160	// clang-format on
161	};
162
163	int SCLuaLoadDnsLib(lua_State *L)
UNCOV 164	{	×
UNCOV 165	luaL_newmetatable(L, dns_tx);	×
UNCOV 166	lua_pushvalue(L, -1);	×
UNCOV 167	lua_setfield(L, -2, "__index");	×
UNCOV 168	luaL_setfuncs(L, txlib, 0);	×
169
UNCOV 170	luaL_newlib(L, dnslib);	×
UNCOV 171	return 1;	×
UNCOV 172	}	×

OISF / suricata / 23374838686

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