/src/wireshark/epan/dissectors/packet-pw-common.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* packet-pw-common.c |
2 | | * Common functions and objects for PWE3 dissectors. |
3 | | * Copyright 2009, Artem Tamazov <artem.tamazov@tellabs.com> |
4 | | * |
5 | | * Wireshark - Network traffic analyzer |
6 | | * By Gerald Combs <gerald@wireshark.org> |
7 | | * Copyright 1998 Gerald Combs |
8 | | * |
9 | | * SPDX-License-Identifier: GPL-2.0-or-later |
10 | | */ |
11 | | |
12 | | #include "config.h" |
13 | | |
14 | | #include <epan/packet.h> |
15 | | #include <wsutil/str_util.h> |
16 | | #include "packet-pw-common.h" |
17 | | |
18 | | void proto_register_pw_padding(void); |
19 | | |
20 | | static const char string_ok[] = "Ok"; |
21 | | |
22 | | const value_string |
23 | | pwc_vals_cw_l_bit[] = { |
24 | | { 0x0, string_ok }, |
25 | | { 0x1, "Attachment Circuit Fault" }, |
26 | | { 0, NULL } |
27 | | }; |
28 | | |
29 | | |
30 | | const value_string |
31 | | pwc_vals_cw_r_bit[] = { |
32 | | { 0x0, string_ok }, |
33 | | { 0x1, "Packet Loss State" }, |
34 | | { 0, NULL } |
35 | | }; |
36 | | |
37 | | const value_string |
38 | | pwc_vals_cw_frag[] = { |
39 | | { 0x0, "Unfragmented" }, |
40 | | { 0x1, "First fragment" }, |
41 | | { 0x2, "Last fragment" }, |
42 | | { 0x3, "Intermediate fragment" }, |
43 | | { 0, NULL } |
44 | | }; |
45 | | |
46 | | |
47 | | void pwc_item_append_cw(proto_item* item, const uint32_t cw, const bool append_text) |
48 | 0 | { |
49 | 0 | if (item != NULL) |
50 | 0 | { |
51 | 0 | if (append_text) |
52 | 0 | { |
53 | 0 | proto_item_append_text(item, ", CW"); |
54 | 0 | } |
55 | 0 | proto_item_append_text(item, ": 0x%.8" PRIx32, cw); |
56 | 0 | } |
57 | 0 | return; |
58 | 0 | } |
59 | | |
60 | | |
61 | | void pwc_item_append_text_n_items(proto_item* item, const int n, const char * const item_text) |
62 | 0 | { |
63 | 0 | if (item != NULL) |
64 | 0 | { |
65 | 0 | if (n >=0) |
66 | 0 | { |
67 | 0 | proto_item_append_text(item, ", %d %s%s", n, item_text, plurality(n,"","s")); |
68 | 0 | } |
69 | 0 | } |
70 | 0 | return; |
71 | 0 | } |
72 | | |
73 | | |
74 | | static int proto_pw_padding; |
75 | | static int ett_pw_common; |
76 | | static int hf_padding_len; |
77 | | |
78 | | static |
79 | | int dissect_pw_padding(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_) |
80 | 0 | { |
81 | 0 | int size; |
82 | 0 | proto_item* item; |
83 | 0 | proto_tree* tree_p; |
84 | 0 | size = tvb_reported_length_remaining(tvb, 0); |
85 | 0 | item = proto_tree_add_item(tree, proto_pw_padding, tvb, 0, -1, ENC_NA); |
86 | 0 | pwc_item_append_text_n_items(item,size,"byte"); |
87 | 0 | tree_p = proto_item_add_subtree(item, ett_pw_common); |
88 | |
|
89 | 0 | call_data_dissector(tvb, pinfo, tree_p); |
90 | 0 | item = proto_tree_add_int(tree_p, hf_padding_len, tvb, 0, 0, size); |
91 | 0 | proto_item_set_hidden(item); /*allow filtering*/ |
92 | |
|
93 | 0 | return tvb_captured_length(tvb); |
94 | 0 | } |
95 | | |
96 | | void proto_register_pw_padding(void) |
97 | 14 | { |
98 | 14 | static hf_register_info hfpadding[] = { |
99 | 14 | {&hf_padding_len ,{"Length" ,"pw.padding.len" |
100 | 14 | ,FT_INT32 ,BASE_DEC ,NULL ,0 |
101 | 14 | ,NULL ,HFILL }} |
102 | 14 | }; |
103 | 14 | static int *ett_array[] = { |
104 | 14 | &ett_pw_common |
105 | 14 | }; |
106 | 14 | proto_pw_padding = proto_register_protocol("Pseudowire Padding","PW Padding","pw.padding"); |
107 | 14 | proto_register_field_array(proto_pw_padding, hfpadding, array_length(hfpadding)); |
108 | 14 | proto_register_subtree_array(ett_array, array_length(ett_array)); |
109 | 14 | register_dissector("pw_padding", dissect_pw_padding, proto_pw_padding); |
110 | 14 | } |
111 | | |
112 | | |
113 | | /* |
114 | | * Editor modelines - https://www.wireshark.org/tools/modelines.html |
115 | | * |
116 | | * Local variables: |
117 | | * c-basic-offset: 8 |
118 | | * tab-width: 8 |
119 | | * indent-tabs-mode: t |
120 | | * End: |
121 | | * |
122 | | * vi: set shiftwidth=8 tabstop=8 noexpandtab: |
123 | | * :indentSize=8:tabSize=8:noTabs=false: |
124 | | */ |