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1 | /* |
2 | * Copyright (C) 2009 Johannes Berg <johannes@sipsolutions.net> | |
3 | * | |
4 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; | |
8 | * version 2.1 of the License (not later!) | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this program; if not, see <http://www.gnu.org/licenses> | |
17 | * | |
18 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
19 | */ | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | ||
24 | #include "event-parse.h" | |
25 | ||
26 | #define INDENT 65 | |
27 | ||
28 | static void print_string(struct trace_seq *s, struct event_format *event, | |
29 | const char *name, const void *data) | |
30 | { | |
31 | struct format_field *f = pevent_find_field(event, name); | |
32 | int offset; | |
33 | int length; | |
34 | ||
35 | if (!f) { | |
36 | trace_seq_printf(s, "NOTFOUND:%s", name); | |
37 | return; | |
38 | } | |
39 | ||
40 | offset = f->offset; | |
41 | length = f->size; | |
42 | ||
43 | if (!strncmp(f->type, "__data_loc", 10)) { | |
44 | unsigned long long v; | |
45 | if (pevent_read_number_field(f, data, &v)) { | |
46 | trace_seq_printf(s, "invalid_data_loc"); | |
47 | return; | |
48 | } | |
49 | offset = v & 0xffff; | |
50 | length = v >> 16; | |
51 | } | |
52 | ||
53 | trace_seq_printf(s, "%.*s", length, (char *)data + offset); | |
54 | } | |
55 | ||
56 | #define SF(fn) pevent_print_num_field(s, fn ":%d", event, fn, record, 0) | |
57 | #define SFX(fn) pevent_print_num_field(s, fn ":%#x", event, fn, record, 0) | |
58 | #define SP() trace_seq_putc(s, ' ') | |
59 | ||
60 | static int drv_bss_info_changed(struct trace_seq *s, | |
61 | struct pevent_record *record, | |
62 | struct event_format *event, void *context) | |
63 | { | |
64 | void *data = record->data; | |
65 | ||
66 | print_string(s, event, "wiphy_name", data); | |
67 | trace_seq_printf(s, " vif:"); | |
68 | print_string(s, event, "vif_name", data); | |
69 | pevent_print_num_field(s, "(%d)", event, "vif_type", record, 1); | |
70 | ||
71 | trace_seq_printf(s, "\n%*s", INDENT, ""); | |
72 | SF("assoc"); SP(); | |
73 | SF("aid"); SP(); | |
74 | SF("cts"); SP(); | |
75 | SF("shortpre"); SP(); | |
76 | SF("shortslot"); SP(); | |
77 | SF("dtimper"); SP(); | |
78 | trace_seq_printf(s, "\n%*s", INDENT, ""); | |
79 | SF("bcnint"); SP(); | |
80 | SFX("assoc_cap"); SP(); | |
81 | SFX("basic_rates"); SP(); | |
82 | SF("enable_beacon"); | |
83 | trace_seq_printf(s, "\n%*s", INDENT, ""); | |
84 | SF("ht_operation_mode"); | |
85 | ||
86 | return 0; | |
87 | } | |
88 | ||
89 | int PEVENT_PLUGIN_LOADER(struct pevent *pevent) | |
90 | { | |
91 | pevent_register_event_handler(pevent, -1, "mac80211", | |
92 | "drv_bss_info_changed", | |
93 | drv_bss_info_changed, NULL); | |
94 | return 0; | |
95 | } | |
ec7c6deb NK |
96 | |
97 | void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) | |
98 | { | |
99 | pevent_unregister_event_handler(pevent, -1, "mac80211", | |
100 | "drv_bss_info_changed", | |
101 | drv_bss_info_changed, NULL); | |
102 | } |