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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #ifdef HAVE_CONFIG_H | |
20 | #include <config.h> | |
21 | #endif | |
22 | ||
23 | #include "event_processing_lttv_common.h" | |
24 | ||
25 | ||
26 | /* This compound literal is #define'd in order to be able to "assign" it and | |
27 | * 'sizeof()' it | |
28 | */ | |
29 | #define EVENT_HOOK_INFO_LIST ((EventHookInfo[]) {\ | |
30 | {\ | |
31 | .channelName= LTT_CHANNEL_NET,\ | |
32 | .eventName= LTT_EVENT_DEV_XMIT,\ | |
33 | .fields= FIELD_ARRAY(LTT_FIELD_SKB, LTT_FIELD_NETWORK_PROTOCOL,\ | |
34 | LTT_FIELD_TRANSPORT_PROTOCOL, LTT_FIELD_SADDR,\ | |
35 | LTT_FIELD_DADDR, LTT_FIELD_TOT_LEN, LTT_FIELD_IHL,\ | |
36 | LTT_FIELD_SOURCE, LTT_FIELD_DEST, LTT_FIELD_SEQ,\ | |
37 | LTT_FIELD_ACK_SEQ, LTT_FIELD_DOFF, LTT_FIELD_ACK,\ | |
38 | LTT_FIELD_RST, LTT_FIELD_SYN, LTT_FIELD_FIN),\ | |
39 | }, {\ | |
40 | .channelName= LTT_CHANNEL_NET,\ | |
41 | .eventName= LTT_EVENT_DEV_RECEIVE,\ | |
42 | .fields= FIELD_ARRAY(LTT_FIELD_SKB, LTT_FIELD_PROTOCOL),\ | |
43 | }, {\ | |
44 | .channelName= LTT_CHANNEL_NET,\ | |
45 | .eventName= LTT_EVENT_PKFREE_SKB,\ | |
46 | .fields= FIELD_ARRAY(LTT_FIELD_SKB),\ | |
47 | }, {\ | |
48 | .channelName= LTT_CHANNEL_NET,\ | |
49 | .eventName= LTT_EVENT_TCPV4_RCV,\ | |
50 | .fields= FIELD_ARRAY(LTT_FIELD_SKB, LTT_FIELD_SADDR,\ | |
51 | LTT_FIELD_DADDR, LTT_FIELD_TOT_LEN, LTT_FIELD_IHL,\ | |
52 | LTT_FIELD_SOURCE, LTT_FIELD_DEST, LTT_FIELD_SEQ,\ | |
53 | LTT_FIELD_ACK_SEQ, LTT_FIELD_DOFF, LTT_FIELD_ACK,\ | |
54 | LTT_FIELD_RST, LTT_FIELD_SYN, LTT_FIELD_FIN),\ | |
55 | }, {\ | |
56 | .channelName= LTT_CHANNEL_NETIF_STATE,\ | |
57 | .eventName= LTT_EVENT_NETWORK_IPV4_INTERFACE,\ | |
58 | .fields= FIELD_ARRAY(LTT_FIELD_NAME, LTT_FIELD_ADDRESS,\ | |
59 | LTT_FIELD_UP),\ | |
60 | }\ | |
61 | }) | |
62 | ||
63 | #ifndef g_info | |
64 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) | |
65 | #endif | |
66 | ||
67 | ||
68 | typedef struct | |
69 | { | |
70 | GQuark channelName; | |
71 | GQuark eventName; | |
72 | GQuark* fields; | |
73 | } EventHookInfo; | |
74 | ||
75 | ||
76 | /* | |
77 | * Initialize the GQuarks needed to register the event hooks for | |
78 | * synchronization | |
79 | */ | |
80 | void createQuarks() | |
81 | { | |
82 | LTT_CHANNEL_NET= g_quark_from_static_string("net"); | |
83 | LTT_CHANNEL_NETIF_STATE= g_quark_from_static_string("netif_state"); | |
84 | ||
85 | LTT_EVENT_DEV_XMIT= g_quark_from_static_string("dev_xmit"); | |
86 | LTT_EVENT_DEV_RECEIVE= g_quark_from_static_string("dev_receive"); | |
87 | LTT_EVENT_PKFREE_SKB= g_quark_from_static_string("pkfree_skb"); | |
88 | LTT_EVENT_TCPV4_RCV= g_quark_from_static_string("tcpv4_rcv"); | |
89 | LTT_EVENT_NETWORK_IPV4_INTERFACE= | |
90 | g_quark_from_static_string("network_ipv4_interface"); | |
91 | ||
92 | LTT_FIELD_SKB= g_quark_from_static_string("skb"); | |
93 | LTT_FIELD_PROTOCOL= g_quark_from_static_string("protocol"); | |
94 | LTT_FIELD_NETWORK_PROTOCOL= | |
95 | g_quark_from_static_string("network_protocol"); | |
96 | LTT_FIELD_TRANSPORT_PROTOCOL= | |
97 | g_quark_from_static_string("transport_protocol"); | |
98 | LTT_FIELD_SADDR= g_quark_from_static_string("saddr"); | |
99 | LTT_FIELD_DADDR= g_quark_from_static_string("daddr"); | |
100 | LTT_FIELD_TOT_LEN= g_quark_from_static_string("tot_len"); | |
101 | LTT_FIELD_IHL= g_quark_from_static_string("ihl"); | |
102 | LTT_FIELD_SOURCE= g_quark_from_static_string("source"); | |
103 | LTT_FIELD_DEST= g_quark_from_static_string("dest"); | |
104 | LTT_FIELD_SEQ= g_quark_from_static_string("seq"); | |
105 | LTT_FIELD_ACK_SEQ= g_quark_from_static_string("ack_seq"); | |
106 | LTT_FIELD_DOFF= g_quark_from_static_string("doff"); | |
107 | LTT_FIELD_ACK= g_quark_from_static_string("ack"); | |
108 | LTT_FIELD_RST= g_quark_from_static_string("rst"); | |
109 | LTT_FIELD_SYN= g_quark_from_static_string("syn"); | |
110 | LTT_FIELD_FIN= g_quark_from_static_string("fin"); | |
111 | LTT_FIELD_NAME= g_quark_from_static_string("name"); | |
112 | LTT_FIELD_ADDRESS= g_quark_from_static_string("address"); | |
113 | LTT_FIELD_UP= g_quark_from_static_string("up"); | |
114 | } | |
115 | ||
116 | ||
117 | /* Fill hookListList and add event hooks | |
118 | * | |
119 | * Note: possibilité de remettre le code avec lttv_trace_find_marker_ids (voir | |
120 | * r328) | |
121 | * | |
122 | * Args: | |
123 | */ | |
124 | void registerHooks(GArray* hookListList, LttvTracesetContext* const | |
125 | traceSetContext, unsigned int traceNb, LttvHook hookFunction, gpointer | |
126 | hookData) | |
127 | { | |
128 | unsigned int i, j, k; | |
129 | unsigned int hookNb; | |
130 | EventHookInfo* eventHookInfoList; | |
131 | ||
132 | eventHookInfoList= EVENT_HOOK_INFO_LIST; | |
133 | hookNb= sizeof(EVENT_HOOK_INFO_LIST) / sizeof(EventHookInfo); | |
134 | ||
135 | for(i= 0; i < traceNb; i++) | |
136 | { | |
137 | LttvTraceContext* tc; | |
138 | GArray* hookList; | |
139 | int retval; | |
140 | ||
141 | tc= traceSetContext->traces[i]; | |
142 | hookList= g_array_new(FALSE, FALSE, sizeof(LttvTraceHook)); | |
143 | g_array_append_val(hookListList, hookList); | |
144 | ||
145 | // Find the hooks | |
146 | for (j= 0; j < hookNb; j++) | |
147 | { | |
148 | guint old_len; | |
149 | ||
150 | old_len= hookList->len; | |
151 | retval= lttv_trace_find_hook(tc->t, | |
152 | eventHookInfoList[j].channelName, | |
153 | eventHookInfoList[j].eventName, eventHookInfoList[j].fields, | |
154 | hookFunction, hookData, &hookList); | |
155 | if (retval != 0) | |
156 | { | |
157 | g_warning("Trace %d contains no %s.%s marker\n", i, | |
158 | g_quark_to_string(eventHookInfoList[j].channelName), | |
159 | g_quark_to_string(eventHookInfoList[j].eventName)); | |
160 | } | |
161 | else | |
162 | { | |
163 | g_assert(hookList->len - old_len == 1); | |
164 | } | |
165 | } | |
166 | ||
167 | // Add the hooks to each tracefile's event_by_id hook list | |
168 | for(j= 0; j < tc->tracefiles->len; j++) | |
169 | { | |
170 | LttvTracefileContext* tfc; | |
171 | ||
172 | tfc= g_array_index(tc->tracefiles, LttvTracefileContext*, j); | |
173 | ||
174 | for(k= 0; k < hookList->len; k++) | |
175 | { | |
176 | LttvTraceHook* traceHook; | |
177 | ||
178 | traceHook= &g_array_index(hookList, LttvTraceHook, k); | |
179 | if (traceHook->hook_data != hookData) | |
180 | { | |
181 | g_assert_not_reached(); | |
182 | } | |
183 | if (traceHook->mdata == tfc->tf->mdata) | |
184 | { | |
185 | lttv_hooks_add(lttv_hooks_by_id_find( tfc->event_by_id, | |
186 | traceHook->id), traceHook->h, traceHook, | |
187 | LTTV_PRIO_DEFAULT); | |
188 | } | |
189 | } | |
190 | } | |
191 | } | |
192 | } | |
193 | ||
194 | ||
195 | /* Remove event hooks and free hookListList | |
196 | * | |
197 | * Args: | |
198 | * hookListList: LttvTraceHook hookListList[traceNum][hookNum] | |
199 | * traceSetContext: LTTV traceset | |
200 | * traceNb: number of traces in the traceset | |
201 | */ | |
202 | void unregisterHooks(GArray* hookListList, LttvTracesetContext* const | |
203 | traceSetContext, unsigned int traceNb) | |
204 | { | |
205 | unsigned int i, j, k; | |
206 | ||
207 | for(i= 0; i < traceNb; i++) | |
208 | { | |
209 | LttvTraceContext* tc; | |
210 | GArray* hookList; | |
211 | ||
212 | tc= traceSetContext->traces[i]; | |
213 | hookList= g_array_index(hookListList, GArray*, i); | |
214 | ||
215 | // Remove the hooks from each tracefile's event_by_id hook list | |
216 | for(j= 0; j < tc->tracefiles->len; j++) | |
217 | { | |
218 | LttvTracefileContext* tfc; | |
219 | ||
220 | tfc= g_array_index(tc->tracefiles, LttvTracefileContext*, j); | |
221 | ||
222 | for(k= 0; k < hookList->len; k++) | |
223 | { | |
224 | LttvTraceHook* traceHook; | |
225 | ||
226 | traceHook= &g_array_index(hookList, LttvTraceHook, k); | |
227 | if (traceHook->mdata == tfc->tf->mdata) | |
228 | { | |
229 | lttv_hooks_remove_data(lttv_hooks_by_id_find(tfc->event_by_id, | |
230 | traceHook->id), traceHook->h, traceHook); | |
231 | } | |
232 | } | |
233 | } | |
234 | ||
235 | g_array_free(hookList, TRUE); | |
236 | } | |
237 | g_array_free(hookListList, TRUE); | |
238 | } |