/src/suricata8/src/flow-callbacks.c
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1 | | /* Copyright (C) 2024 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 | | #include "flow-callbacks.h" |
19 | | |
20 | | typedef struct FlowInitCallback_ { |
21 | | SCFlowInitCallbackFn Callback; |
22 | | void *user; |
23 | | struct FlowInitCallback_ *next; |
24 | | } FlowInitCallback; |
25 | | |
26 | | static FlowInitCallback *init_callbacks = NULL; |
27 | | |
28 | | typedef struct FlowUpdateCallback_ { |
29 | | SCFlowUpdateCallbackFn Callback; |
30 | | void *user; |
31 | | struct FlowUpdateCallback_ *next; |
32 | | } FlowUpdateCallback; |
33 | | |
34 | | static FlowUpdateCallback *update_callbacks = NULL; |
35 | | |
36 | | typedef struct FlowFinishCallback_ { |
37 | | SCFlowFinishCallbackFn Callback; |
38 | | void *user; |
39 | | struct FlowFinishCallback_ *next; |
40 | | } FlowFinishCallback; |
41 | | |
42 | | static FlowFinishCallback *finish_callbacks = NULL; |
43 | | |
44 | | bool SCFlowRegisterInitCallback(SCFlowInitCallbackFn fn, void *user) |
45 | 0 | { |
46 | 0 | FlowInitCallback *cb = SCCalloc(1, sizeof(*cb)); |
47 | 0 | if (cb == NULL) { |
48 | 0 | return false; |
49 | 0 | } |
50 | 0 | cb->Callback = fn; |
51 | 0 | cb->user = user; |
52 | 0 | if (init_callbacks == NULL) { |
53 | 0 | init_callbacks = cb; |
54 | 0 | } else { |
55 | 0 | FlowInitCallback *current = init_callbacks; |
56 | 0 | while (current->next != NULL) { |
57 | 0 | current = current->next; |
58 | 0 | } |
59 | 0 | current->next = cb; |
60 | 0 | } |
61 | 0 | return true; |
62 | 0 | } |
63 | | |
64 | | void SCFlowRunInitCallbacks(ThreadVars *tv, Flow *f, const Packet *p) |
65 | 370k | { |
66 | 370k | FlowInitCallback *cb = init_callbacks; |
67 | 370k | while (cb != NULL) { |
68 | 0 | cb->Callback(tv, f, p, cb->user); |
69 | 0 | cb = cb->next; |
70 | 0 | } |
71 | 370k | } |
72 | | |
73 | | bool SCFlowRegisterUpdateCallback(SCFlowUpdateCallbackFn fn, void *user) |
74 | 0 | { |
75 | 0 | FlowUpdateCallback *cb = SCCalloc(1, sizeof(*cb)); |
76 | 0 | if (cb == NULL) { |
77 | 0 | return false; |
78 | 0 | } |
79 | 0 | cb->Callback = fn; |
80 | 0 | cb->user = user; |
81 | 0 | if (update_callbacks == NULL) { |
82 | 0 | update_callbacks = cb; |
83 | 0 | } else { |
84 | 0 | FlowUpdateCallback *current = update_callbacks; |
85 | 0 | while (current->next != NULL) { |
86 | 0 | current = current->next; |
87 | 0 | } |
88 | 0 | current->next = cb; |
89 | 0 | } |
90 | 0 | return true; |
91 | 0 | } |
92 | | |
93 | | void SCFlowRunUpdateCallbacks(ThreadVars *tv, Flow *f, Packet *p) |
94 | 9.41M | { |
95 | 9.41M | FlowUpdateCallback *cb = update_callbacks; |
96 | 9.41M | while (cb != NULL) { |
97 | 0 | cb->Callback(tv, f, p, cb->user); |
98 | 0 | cb = cb->next; |
99 | 0 | } |
100 | 9.41M | } |
101 | | |
102 | | bool SCFlowRegisterFinishCallback(SCFlowFinishCallbackFn fn, void *user) |
103 | 0 | { |
104 | 0 | FlowFinishCallback *cb = SCCalloc(1, sizeof(*cb)); |
105 | 0 | if (cb == NULL) { |
106 | 0 | return false; |
107 | 0 | } |
108 | 0 | cb->Callback = fn; |
109 | 0 | cb->user = user; |
110 | 0 | if (finish_callbacks == NULL) { |
111 | 0 | finish_callbacks = cb; |
112 | 0 | } else { |
113 | 0 | FlowFinishCallback *current = finish_callbacks; |
114 | 0 | while (current->next != NULL) { |
115 | 0 | current = current->next; |
116 | 0 | } |
117 | 0 | current->next = cb; |
118 | 0 | } |
119 | 0 | return true; |
120 | 0 | } |
121 | | |
122 | | void SCFlowRunFinishCallbacks(ThreadVars *tv, Flow *f) |
123 | 0 | { |
124 | 0 | FlowFinishCallback *cb = finish_callbacks; |
125 | 0 | while (cb != NULL) { |
126 | 0 | cb->Callback(tv, f, cb->user); |
127 | 0 | cb = cb->next; |
128 | 0 | } |
129 | 0 | } |