1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/* Copyright (C) 2007-2011 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 Victor Julien <victor@inliniac.net>
* \author Anoop Saldanha <anoopsaldanha@gmail.com>
*/
#ifndef __TM_THREADS_H__
#define __TM_THREADS_H__
#include "tmqh-packetpool.h"
#include "tm-threads-common.h"
#include "tm-modules.h"
#define TM_QUEUE_NAME_MAX 16
#define TM_THREAD_NAME_MAX 16
typedef TmEcode (*TmSlotFunc)(ThreadVars *, Packet *, void *, PacketQueue *,
PacketQueue *);
typedef struct TmSlot_ {
/* the TV holding this slot */
ThreadVars *tv;
/* function pointers */
SC_ATOMIC_DECLARE(TmSlotFunc, SlotFunc);
TmEcode (*PktAcqLoop)(ThreadVars *, void *, void *);
TmEcode (*SlotThreadInit)(ThreadVars *, void *, void **);
void (*SlotThreadExitPrintStats)(ThreadVars *, void *);
TmEcode (*SlotThreadDeinit)(ThreadVars *, void *);
/* data storage */
void *slot_initdata;
SC_ATOMIC_DECLARE(void *, slot_data);
/* queue filled by the SlotFunc with packets that will
* be processed futher _before_ the current packet.
* The locks in the queue are NOT used */
PacketQueue slot_pre_pq;
/* queue filled by the SlotFunc with packets that will
* be processed futher _after_ the current packet. The
* locks in the queue are NOT used */
PacketQueue slot_post_pq;
/* store the thread module id */
int tm_id;
/* slot id, only used my TmVarSlot to know what the first slot is */
int id;
/* linked list, only used when you have multiple slots(used by TmVarSlot) */
struct TmSlot_ *slot_next;
/* just called once, so not perf critical */
TmEcode (*Management)(ThreadVars *, void *);
} TmSlot;
extern ThreadVars *tv_root[TVT_MAX];
extern SCMutex tv_root_lock;
void TmSlotSetFuncAppend(ThreadVars *, TmModule *, void *);
void TmSlotSetFuncAppendDelayed(ThreadVars *, TmModule *, void *, int delayed);
TmSlot *TmSlotGetSlotForTM(int);
ThreadVars *TmThreadCreate(char *, char *, char *, char *, char *, char *,
void *(fn_p)(void *), int);
ThreadVars *TmThreadCreatePacketHandler(char *, char *, char *, char *, char *,
char *);
ThreadVars *TmThreadCreateMgmtThread(char *name, void *(fn_p)(void *), int);
ThreadVars *TmThreadCreateMgmtThreadByName(char *name, char *module,
int mucond);
ThreadVars *TmThreadCreateCmdThreadByName(char *name, char *module,
int mucond);
TmEcode TmThreadSpawn(ThreadVars *);
void TmThreadSetFlags(ThreadVars *, uint8_t);
void TmThreadSetAOF(ThreadVars *, uint8_t);
void TmThreadKillThread(ThreadVars *);
void TmThreadKillThreadsFamily(int family);
void TmThreadKillThreads(void);
void TmThreadClearThreadsFamily(int family);
void TmThreadAppend(ThreadVars *, int);
void TmThreadRemove(ThreadVars *, int);
TmEcode TmThreadSetCPUAffinity(ThreadVars *, uint16_t);
TmEcode TmThreadSetThreadPriority(ThreadVars *, int);
TmEcode TmThreadSetCPU(ThreadVars *, uint8_t);
TmEcode TmThreadSetupOptions(ThreadVars *);
void TmThreadSetPrio(ThreadVars *);
int TmThreadGetNbThreads(uint8_t type);
void TmThreadInitMC(ThreadVars *);
void TmThreadTestThreadUnPaused(ThreadVars *);
void TmThreadContinue(ThreadVars *);
void TmThreadContinueThreads(void);
void TmThreadPause(ThreadVars *);
void TmThreadPauseThreads(void);
void TmThreadCheckThreadState(void);
TmEcode TmThreadWaitOnThreadInit(void);
ThreadVars *TmThreadsGetCallingThread(void);
int TmThreadsCheckFlag(ThreadVars *, uint16_t);
void TmThreadsSetFlag(ThreadVars *, uint16_t);
void TmThreadsUnsetFlag(ThreadVars *, uint16_t);
void TmThreadWaitForFlag(ThreadVars *, uint16_t);
TmEcode TmThreadsSlotVarRun (ThreadVars *tv, Packet *p, TmSlot *slot);
ThreadVars *TmThreadsGetTVContainingSlot(TmSlot *);
void TmThreadDisablePacketThreads(void);
void TmThreadDisableReceiveThreads(void);
TmSlot *TmThreadGetFirstTmSlotForPartialPattern(const char *);
uint32_t TmThreadCountThreadsByTmmFlags(uint8_t flags);
/**
* \brief Process the rest of the functions (if any) and queue.
*/
static inline TmEcode TmThreadsSlotProcessPkt(ThreadVars *tv, TmSlot *s, Packet *p)
{
TmEcode r = TM_ECODE_OK;
if (s == NULL) {
tv->tmqh_out(tv, p);
return r;
}
if (TmThreadsSlotVarRun(tv, p, s) == TM_ECODE_FAILED) {
TmqhOutputPacketpool(tv, p);
TmSlot *slot = s;
while (slot != NULL) {
SCMutexLock(&slot->slot_post_pq.mutex_q);
TmqhReleasePacketsToPacketPool(&slot->slot_post_pq);
SCMutexUnlock(&slot->slot_post_pq.mutex_q);
slot = slot->slot_next;
}
TmThreadsSetFlag(tv, THV_FAILED);
r = TM_ECODE_FAILED;
} else {
tv->tmqh_out(tv, p);
/* post process pq */
TmSlot *slot = s;
while (slot != NULL) {
if (slot->slot_post_pq.top != NULL) {
while (1) {
SCMutexLock(&slot->slot_post_pq.mutex_q);
Packet *extra_p = PacketDequeue(&slot->slot_post_pq);
SCMutexUnlock(&slot->slot_post_pq.mutex_q);
if (extra_p == NULL)
break;
if (slot->slot_next != NULL) {
r = TmThreadsSlotVarRun(tv, extra_p, slot->slot_next);
if (r == TM_ECODE_FAILED) {
SCMutexLock(&slot->slot_post_pq.mutex_q);
TmqhReleasePacketsToPacketPool(&slot->slot_post_pq);
SCMutexUnlock(&slot->slot_post_pq.mutex_q);
TmqhOutputPacketpool(tv, extra_p);
TmThreadsSetFlag(tv, THV_FAILED);
break;
}
}
tv->tmqh_out(tv, extra_p);
}
} /* if (slot->slot_post_pq.top != NULL) */
slot = slot->slot_next;
} /* while (slot != NULL) */
}
return r;
}
void TmThreadsListThreads(void);
int TmThreadsRegisterThread(ThreadVars *tv, const int type);
void TmThreadsUnregisterThread(const int id);
int TmThreadsInjectPacketsById(Packet **, int id);
#endif /* __TM_THREADS_H__ */
|
