### Bug Summary

File: | builds/wireshark/wireshark/extcap/sshdump.c
Warning: | line 224, column 9 Opened stream never closed. Potential resource leak

### Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name sshdump.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -pic-is-pie -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-22/lib/clang/22 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -D CARES_NO_DEPRECATED -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/llvm-22/lib/clang/22/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-nonliteral -std=gnu17 -ferror-limit 19 -fvisibility=hidden -fwrapv -fwrapv-pointer -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fexceptions -fcolor-diagnostics -analyzer-output=html -faddrsig -fdwarf2-cfi-asm -o /builds/wireshark/wireshark/sbout/2026-08-13-100404-3660-1 -x c /builds/wireshark/wireshark/extcap/sshdump.c

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1 | /* sshdump.c
2 | * sshdump is extcap tool used to capture data using a remote ssh host
3 | *
4 | * Copyright 2015, Dario Lombardo
5 | *
6 | * Wireshark - Network traffic analyzer
7 | * By Gerald Combs <gerald@wireshark.org>
8 | * Copyright 1998 Gerald Combs
9 | *
10 | * SPDX-License-Identifier: GPL-2.0-or-later
11 | */
12 |
13 | #include "config.h"
14 | #define WS_LOG_DOMAIN"sshdump" "sshdump"
15 |
16 | #include <extcap/extcap-base.h>
17 | #include <extcap/ssh-base.h>
18 | #include <wsutil/interface.h>
19 | #include <wsutil/file_util.h>
20 | #include <wsutil/strtoi.h>
21 | #include <wsutil/filesystem.h>
22 | #include <wsutil/privileges.h>
23 | #include <wsutil/please_report_bug.h>
24 | #include <wsutil/wslog.h>
25 | #include <app/application_flavor.h>
26 |
27 | #include <errno(*__errno_location ()).h>
28 | #include <string.h>
29 | #include <fcntl.h>
30 |
31 | #include <cli_main.h>
32 |
33 | static char* sshdump_extcap_interface;
34 | #define DEFAULT_SSHDUMP_EXTCAP_INTERFACE"sshdump" "sshdump"
35 |
36 | #define SSHDUMP_VERSION_MAJOR"1" "1"
37 | #define SSHDUMP_VERSION_MINOR"2" "2"
38 | #define SSHDUMP_VERSION_RELEASE"0" "0"
39 |
40 | enum {
41 | EXTCAP_BASE_OPTIONS_ENUMEXTCAP_OPT_LIST_INTERFACES, EXTCAP_OPT_VERSION, EXTCAP_OPT_LIST_DLTS , EXTCAP_OPT_INTERFACE, EXTCAP_OPT_CONFIG, EXTCAP_OPT_CONFIG_OPTION_NAME , EXTCAP_OPT_CONFIG_OPTION_VALUE, EXTCAP_OPT_CLEANUP_POSTKILL , EXTCAP_OPT_CAPTURE, EXTCAP_OPT_CAPTURE_FILTER, EXTCAP_OPT_FIFO , EXTCAP_OPT_LOG_LEVEL, EXTCAP_OPT_LOG_FILE,
42 | OPT_HELP,
43 | OPT_VERSION,
44 | SSH_BASE_PACKET_OPTIONS_ENUMOPT_REMOTE_HOST, OPT_REMOTE_PORT, OPT_REMOTE_USERNAME, OPT_REMOTE_PASSWORD , OPT_SSHKEY, OPT_SSHKEY_PASSPHRASE, OPT_PROXYCOMMAND, OPT_SSH_SHA1 , OPT_UPDATE_KNOWN_HOSTS, OPT_REMOTE_INTERFACE, OPT_REMOTE_FILTER,
45 | OPT_REMOTE_CAPTURE_COMMAND_SELECT,
46 | OPT_REMOTE_CAPTURE_COMMAND,
47 | OPT_REMOTE_COUNT,
48 | OPT_REMOTE_SUDO, // Deprecated
49 | OPT_REMOTE_PRIV,
50 | OPT_REMOTE_PRIV_USER,
51 | OPT_REMOTE_NOPROM
52 | };
53 |
54 | static const struct ws_option longopts[] = {
55 | EXTCAP_BASE_OPTIONS{ "extcap-interfaces", 0, ((void*)0), EXTCAP_OPT_LIST_INTERFACES }, { "extcap-version", 2, ((void*)0), EXTCAP_OPT_VERSION}, { "extcap-dlts" , 0, ((void*)0), EXTCAP_OPT_LIST_DLTS}, { "extcap-interface", 1, ((void*)0), EXTCAP_OPT_INTERFACE}, { "extcap-config", 0, ( (void*)0), EXTCAP_OPT_CONFIG}, { "extcap-config-option-name", 1, ((void*)0), EXTCAP_OPT_CONFIG_OPTION_NAME}, { "extcap-config-option-value" , 1, ((void*)0), EXTCAP_OPT_CONFIG_OPTION_VALUE }, { "extcap-cleanup-postkill" , 0, ((void*)0), EXTCAP_OPT_CLEANUP_POSTKILL }, { "capture", 0 , ((void*)0), EXTCAP_OPT_CAPTURE}, { "extcap-capture-filter", 1, ((void*)0), EXTCAP_OPT_CAPTURE_FILTER}, { "fifo", 1, ((void *)0), EXTCAP_OPT_FIFO}, { "log-level", 1, ((void*)0), EXTCAP_OPT_LOG_LEVEL }, { "log-file", 1, ((void*)0), EXTCAP_OPT_LOG_FILE},
56 | { "help", ws_no_argument0, NULL((void*)0), OPT_HELP},
57 | { "version", ws_no_argument0, NULL((void*)0), OPT_VERSION},
58 | SSH_BASE_PACKET_OPTIONS{ "remote-host", 1, ((void*)0), OPT_REMOTE_HOST}, { "remote-port" , 1, ((void*)0), OPT_REMOTE_PORT}, { "remote-username", 1, (( void*)0), OPT_REMOTE_USERNAME}, { "remote-password", 1, ((void *)0), OPT_REMOTE_PASSWORD}, { "remote-count", 1, ((void*)0), OPT_REMOTE_COUNT }, { "sshkey", 1, ((void*)0), OPT_SSHKEY}, { "sshkey-passphrase" , 1, ((void*)0), OPT_SSHKEY_PASSPHRASE}, { "proxycommand", 1, ((void*)0), OPT_PROXYCOMMAND}, { "ssh-sha1", 0, ((void*)0), OPT_SSH_SHA1 }, { "update-known-hosts", 0, ((void*)0), OPT_UPDATE_KNOWN_HOSTS }, { "remote-interface", 1, ((void*)0), OPT_REMOTE_INTERFACE} , { "remote-filter", 1, ((void*)0), OPT_REMOTE_FILTER},
59 | { "remote-capture-command-select", ws_required_argument1, NULL((void*)0), OPT_REMOTE_CAPTURE_COMMAND_SELECT},
60 | { "remote-capture-command", ws_required_argument1, NULL((void*)0), OPT_REMOTE_CAPTURE_COMMAND},
61 | { "remote-sudo", ws_no_argument0, NULL((void*)0), OPT_REMOTE_SUDO }, // Deprecated
62 | { "remote-priv", ws_required_argument1, NULL((void*)0), OPT_REMOTE_PRIV },
63 | { "remote-priv-user", ws_required_argument1, NULL((void*)0), OPT_REMOTE_PRIV_USER },
64 | { "remote-noprom", ws_no_argument0, NULL((void*)0), OPT_REMOTE_NOPROM },
65 | { 0, 0, 0, 0}
66 | };
67 |
68 | static char* interfaces_list_to_filter(GSList* if_list, unsigned int remote_port);
69 |
70 | static char* local_interfaces_to_filter(const uint16_t remote_port)
71 | {
72 | GSList* interfaces = local_interfaces_to_list();
73 | char* filter = interfaces_list_to_filter(interfaces, remote_port);
74 | g_slist_free_full(interfaces, g_free);
75 | return filter;
76 | }
77 |
78 | static ssh_channel run_ssh_command(ssh_session sshs, const char* capture_command_select,
79 | const char* capture_command, const char* privilege, bool_Bool noprom,
80 | const char* iface, const char* cfilter, const uint32_t count)
81 | {
82 | char* cmdline = NULL((void*)0);
83 | ssh_channel channel;
84 | char** ifaces_array = NULL((void*)0);
85 | int ifaces_array_num = 0;
86 | GString *ifaces_string;
87 | char *ifaces = NULL((void*)0);
88 | char* quoted_iface = NULL((void*)0);
89 | char* quoted_filter = NULL((void*)0);
90 | char* count_str = NULL((void*)0);
91 | unsigned int remote_port = 22;
92 |
93 | channel = ssh_channel_new(sshs);
94 | if (!channel) {
95 | ws_warning("Can't create channel")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 95, __func__, "Can't create channel"); } } while (0);
96 | return NULL((void*)0);
97 | }
98 |
99 | if (ssh_channel_open_session(channel) != SSH_OK0) {
100 | ws_warning("Can't open session")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 100, __func__, "Can't open session"); } } while (0);
101 | ssh_channel_free(channel);
102 | return NULL((void*)0);
103 | }
104 |
105 | ssh_options_get_port(sshs, &remote_port);
106 |
107 | if (capture_command_select == NULL((void*)0) || !g_strcmp0(capture_command_select, "other")) {
108 | if (capture_command && *capture_command) {
109 | cmdline = g_strdup(capture_command)g_strdup_inline (capture_command);
110 | ws_debug("Remote capture command has disabled other options")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_DEBUG, "extcap/sshdump.c" , 110, __func__, "Remote capture command has disabled other options" ); } } while (0);
111 | } else {
112 | capture_command_select = "tcpdump";
113 | }
114 | }
115 |
116 | /* escape parameters to go save with the shell */
117 | if (!g_strcmp0(capture_command_select, "tcpdump")) {
118 | quoted_iface = iface ? g_shell_quote(iface) : NULL((void*)0);
119 | quoted_filter = g_shell_quote(cfilter ? cfilter : "");
120 | if (count > 0)
121 | count_str = ws_strdup_printf("-c %u", count)wmem_strdup_printf(((void*)0), "-c %u", count);
122 |
123 | cmdline = ws_strdup_printf("%s tcpdump -U %s%s %s -w - %s %s",wmem_strdup_printf(((void*)0), "%s tcpdump -U %s%s %s -w - %s %s" , privilege, quoted_iface ? "-i " : "", quoted_iface ? quoted_iface : "", noprom ? "-p" : "", count_str ? count_str : "", quoted_filter )
124 | privilege,wmem_strdup_printf(((void*)0), "%s tcpdump -U %s%s %s -w - %s %s" , privilege, quoted_iface ? "-i " : "", quoted_iface ? quoted_iface : "", noprom ? "-p" : "", count_str ? count_str : "", quoted_filter )
125 | quoted_iface ? "-i " : "",wmem_strdup_printf(((void*)0), "%s tcpdump -U %s%s %s -w - %s %s" , privilege, quoted_iface ? "-i " : "", quoted_iface ? quoted_iface : "", noprom ? "-p" : "", count_str ? count_str : "", quoted_filter )
126 | quoted_iface ? quoted_iface : "",wmem_strdup_printf(((void*)0), "%s tcpdump -U %s%s %s -w - %s %s" , privilege, quoted_iface ? "-i " : "", quoted_iface ? quoted_iface : "", noprom ? "-p" : "", count_str ? count_str : "", quoted_filter )
127 | noprom ? "-p" : "",wmem_strdup_printf(((void*)0), "%s tcpdump -U %s%s %s -w - %s %s" , privilege, quoted_iface ? "-i " : "", quoted_iface ? quoted_iface : "", noprom ? "-p" : "", count_str ? count_str : "", quoted_filter )
128 | count_str ? count_str : "",wmem_strdup_printf(((void*)0), "%s tcpdump -U %s%s %s -w - %s %s" , privilege, quoted_iface ? "-i " : "", quoted_iface ? quoted_iface : "", noprom ? "-p" : "", count_str ? count_str : "", quoted_filter )
129 | quoted_filter)wmem_strdup_printf(((void*)0), "%s tcpdump -U %s%s %s -w - %s %s" , privilege, quoted_iface ? "-i " : "", quoted_iface ? quoted_iface : "", noprom ? "-p" : "", count_str ? count_str : "", quoted_filter );
130 | } else if (!g_strcmp0(capture_command_select, "dumpcap")) {
131 | if (iface) {
132 | ifaces_array = g_strsplit(iface, " ", -1);
133 | ifaces_string = g_string_new(NULL((void*)0));
134 | while (ifaces_array[ifaces_array_num])
135 | {
136 | quoted_iface = g_shell_quote(ifaces_array[ifaces_array_num]);
137 | g_string_append_printf(ifaces_string, "-i %s ", quoted_iface);
138 | ifaces_array_num++;
139 | }
140 | ifaces = g_string_free(ifaces_string, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((ifaces_string ), ((0))) : g_string_free_and_steal (ifaces_string)) : (g_string_free ) ((ifaces_string), ((0))));
141 | }
142 | quoted_filter = g_shell_quote(cfilter ? cfilter : "");
143 | if (count > 0)
144 | count_str = ws_strdup_printf("-c %u", count)wmem_strdup_printf(((void*)0), "-c %u", count);
145 |
146 | cmdline = ws_strdup_printf("%s dumpcap %s %s -w - %s -f %s",wmem_strdup_printf(((void*)0), "%s dumpcap %s %s -w - %s -f %s" , privilege, noprom ? "-p" : "", ifaces ? ifaces : "", count_str ? count_str : "", quoted_filter)
147 | privilege,wmem_strdup_printf(((void*)0), "%s dumpcap %s %s -w - %s -f %s" , privilege, noprom ? "-p" : "", ifaces ? ifaces : "", count_str ? count_str : "", quoted_filter)
148 | noprom ? "-p" : "",wmem_strdup_printf(((void*)0), "%s dumpcap %s %s -w - %s -f %s" , privilege, noprom ? "-p" : "", ifaces ? ifaces : "", count_str ? count_str : "", quoted_filter)
149 | ifaces ? ifaces : "",wmem_strdup_printf(((void*)0), "%s dumpcap %s %s -w - %s -f %s" , privilege, noprom ? "-p" : "", ifaces ? ifaces : "", count_str ? count_str : "", quoted_filter)
150 | count_str ? count_str : "",wmem_strdup_printf(((void*)0), "%s dumpcap %s %s -w - %s -f %s" , privilege, noprom ? "-p" : "", ifaces ? ifaces : "", count_str ? count_str : "", quoted_filter)
151 | quoted_filter)wmem_strdup_printf(((void*)0), "%s dumpcap %s %s -w - %s -f %s" , privilege, noprom ? "-p" : "", ifaces ? ifaces : "", count_str ? count_str : "", quoted_filter);
152 |
153 | g_free(ifaces)(__builtin_object_size ((ifaces), 0) != ((size_t) - 1)) ? g_free_sized (ifaces, __builtin_object_size ((ifaces), 0)) : (g_free) (ifaces );
154 | g_strfreev(ifaces_array);
155 | }
156 |
157 | ws_debug("Running: %s", cmdline)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_DEBUG, "extcap/sshdump.c" , 157, __func__, "Running: %s", cmdline); } } while (0);
158 | if (ssh_channel_request_exec(channel, cmdline) != SSH_OK0) {
159 | ws_warning("Can't request exec")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 159, __func__, "Can't request exec"); } } while (0);
160 | ssh_channel_close(channel);
161 | ssh_channel_free(channel);
162 | channel = NULL((void*)0);
163 | }
164 |
165 | g_free(quoted_iface)(__builtin_object_size ((quoted_iface), 0) != ((size_t) - 1)) ? g_free_sized (quoted_iface, __builtin_object_size ((quoted_iface ), 0)) : (g_free) (quoted_iface);
166 | g_free(quoted_filter)(__builtin_object_size ((quoted_filter), 0) != ((size_t) - 1) ) ? g_free_sized (quoted_filter, __builtin_object_size ((quoted_filter ), 0)) : (g_free) (quoted_filter);
167 | g_free(cmdline)(__builtin_object_size ((cmdline), 0) != ((size_t) - 1)) ? g_free_sized (cmdline, __builtin_object_size ((cmdline), 0)) : (g_free) ( cmdline);
168 | g_free(count_str)(__builtin_object_size ((count_str), 0) != ((size_t) - 1)) ? g_free_sized (count_str, __builtin_object_size ((count_str), 0)) : (g_free ) (count_str);
169 |
170 | return channel;
171 | }
172 |
173 | static int ssh_open_remote_connection(const ssh_params_t* params, const char* iface, const char* cfilter,
174 | const char* capture_command_select, const char* capture_command, const char* privilege,
175 | bool_Bool noprom, const uint32_t count, const char* fifo)
176 | {
177 | ssh_session sshs = NULL((void*)0);
178 | ssh_channel channel = NULL((void*)0);
179 | FILE* fp = stdoutstdout;
180 | int ret = EXIT_FAILURE1;
181 | char* err_info = NULL((void*)0);
182 |
183 | if (g_strcmp0(fifo, "-")) {
34 | ← | Assuming the condition is true | →
35 | ← | Taking true branch | →
184 | /* Open or create the output file */
185 | fp = fopen(fifo, "wb");
36 | ← | Stream opened here | →
37 | ← | Assuming that 'fopen' is successful | →
186 | if (fp
37.1 | 'fp' is not equal to NULL
== NULL((void*)0)) {
38 | ← | Taking false branch | →
187 | ws_warning("Error creating output file: %s (%s)", fifo, g_strerror(errno))do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 187, __func__, "Error creating output file: %s (%s)", fifo, g_strerror((*__errno_location ()))); } } while (0);
188 | return EXIT_FAILURE1;
189 | }
190 | }
191 |
192 | sshs = create_ssh_connection(params, &err_info);
193 |
194 | if (!sshs) {
39 | ← | Assuming 'sshs' is null | →
40 | ← | Taking true branch | →
195 | ws_warning("Error creating connection.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 195, __func__, "Error creating connection."); } } while (0);
41 | ← | Taking true branch | →
42 | ← | Loop condition is false. Exiting loop | →
196 | goto cleanup;
43 | ← | Control jumps to line 215 | →
197 | }
198 |
199 | channel = run_ssh_command(sshs, capture_command_select, capture_command, privilege, noprom, iface, cfilter, count);
200 |
201 | if (!channel) {
202 | ws_warning("Can't run ssh command.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 202, __func__, "Can't run ssh command."); } } while (0);
203 | goto cleanup;
204 | }
205 |
206 | /* read from channel and write into fp */
207 | if (ssh_async_loop_read(sshs, channel, fp) != EXIT_SUCCESS0) {
208 | ws_warning("Error in read loop.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 208, __func__, "Error in read loop."); } } while (0);
209 | ret = EXIT_FAILURE1;
210 | goto cleanup;
211 | }
212 |
213 | ret = EXIT_SUCCESS0;
214 | cleanup:
215 | if (err_info)
44 | ← | Assuming 'err_info' is null | →
216 | ws_warning("%s", err_info)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 216, __func__, "%s", err_info); } } while (0);
217 | g_free(err_info)(__builtin_object_size ((err_info), 0) != ((size_t) - 1)) ? g_free_sized (err_info, __builtin_object_size ((err_info), 0)) : (g_free) (err_info);
45 | ← | Taking false branch | →
46 | ← | Assuming the condition is false | →
47 | ← | '?' condition is false | →
218 |
219 | /* clean up and exit */
220 | ssh_cleanup(&sshs, &channel);
221 |
222 | if (g_strcmp0(fifo, "-"))
48 | ← | Assuming the condition is false | →
49 | ← | Taking false branch | →
223 | fclose(fp);
224 | return ret;
50 | ← | Opened stream never closed. Potential resource leak
225 | }
226 |
227 | static char* interfaces_list_to_filter(GSList* interfaces, unsigned int remote_port)
228 | {
229 | GString* filter = g_string_new(NULL((void*)0));
230 | GSList* cur;
231 |
232 | // If no port is given, assume the default one. This might not be
233 | // correct if the port is looked up from the ssh config file, but it is
234 | // better than nothing.
235 | if (remote_port == 0) {
236 | remote_port = 22;
237 | }
238 |
239 | if (!interfaces) {
240 | g_string_append_printf(filter, "not port %u", remote_port);
241 | } else {
242 | g_string_append_printf(filter, "not ((host %s", (char*)interfaces->data);
243 | cur = g_slist_next(interfaces)((interfaces) ? (((GSList *)(interfaces))->next) : ((void* )0));
244 | while (cur) {
245 | g_string_append_printf(filter, " or host %s", (char*)cur->data);
246 | cur = g_slist_next(cur)((cur) ? (((GSList *)(cur))->next) : ((void*)0));
247 | }
248 | g_string_append_printf(filter, ") and port %u)", remote_port);
249 | }
250 | return g_string_free(filter, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((filter ), ((0))) : g_string_free_and_steal (filter)) : (g_string_free ) ((filter), ((0))));
251 | }
252 |
253 | static int list_config(char *interface, unsigned int remote_port)
254 | {
255 | unsigned inc = 0;
256 | char* ipfilter;
257 |
258 | if (!interface) {
259 | ws_warning("ERROR: No interface specified.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 259, __func__, "ERROR: No interface specified."); } } while (0);
260 | return EXIT_FAILURE1;
261 | }
262 |
263 | if (g_strcmp0(interface, sshdump_extcap_interface)) {
264 | ws_warning("ERROR: interface must be %s", sshdump_extcap_interface)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 264, __func__, "ERROR: interface must be %s", sshdump_extcap_interface ); } } while (0);
265 | return EXIT_FAILURE1;
266 | }
267 |
268 | ipfilter = local_interfaces_to_filter(remote_port);
269 |
270 | ssh_base_list_config(&inc);
271 |
272 | printf("arg {number=%u}{call=--remote-interface}{display=Remote interface}"
273 | "{type=string}{tooltip=The remote network interface used for capture"
274 | "}{group=Capture}\n", inc++);
275 | printf("arg {number=%u}{call=--remote-capture-command-select}{display=Remote capture command selection}"
276 | "{type=radio}{tooltip=The remote capture command to build a command line for}{group=Capture}\n", inc);
277 | printf("value {arg=%u}{value=dumpcap}{display=dumpcap}\n", inc);
278 | printf("value {arg=%u}{value=tcpdump}{display=tcpdump}{default=true}\n", inc);
279 | printf("value {arg=%u}{value=other}{display=Other:}\n", inc++);
280 | printf("arg {number=%u}{call=--remote-capture-command}{display=Remote capture command}"
281 | "{type=string}{tooltip=The remote command used to capture}{group=Capture}\n", inc++);
282 | // Deprecated
283 | //printf("arg {number=%u}{call=--remote-sudo}{display=Use sudo on the remote machine}"
284 | // "{type=boolflag}{tooltip=Prepend the capture command with sudo on the remote machine}"
285 | // "{group=Capture}\n", inc++);
286 | printf("arg {number=%u}{call=--remote-priv}{display=Gain capture privilege on the remote machine}"
287 | "{type=radio}{tooltip=Optionally prepend the capture command with sudo or doas on the remote machine}"
288 | "{group=Capture}\n", inc);
289 | printf("value {arg=%u}{value=none}{display=none}{default=true}\n", inc);
290 | printf("value {arg=%u}{value=sudo}{display=sudo}\n", inc);
291 | printf("value {arg=%u}{value=doas -n}{display=doas}\n", inc++);
292 | printf("arg {number=%u}{call=--remote-priv-user}{display=Privileged user name for sudo or doas}"
293 | "{type=string}{tooltip=User name of privileged user to execute the capture command on the remote machine}"
294 | "{group=Capture}\n", inc++);
295 | printf("arg {number=%u}{call=--remote-noprom}{display=No promiscuous mode}"
296 | "{type=boolflag}{tooltip=Don't use promiscuous mode on the remote machine}{group=Capture}"
297 | "\n", inc++);
298 | printf("arg {number=%u}{call=--remote-filter}{display=Remote capture filter}{type=string}"
299 | "{tooltip=The remote capture filter}", inc++);
300 | if (ipfilter)
301 | printf("{default=%s}", ipfilter);
302 | printf("{group=Capture}\n");
303 | printf("arg {number=%u}{call=--remote-count}{display=Packets to capture}"
304 | "{type=unsigned}{default=0}{tooltip=The number of remote packets to capture. (Default: inf)}"
305 | "{group=Capture}\n", inc++);
306 |
307 | extcap_config_debug(&inc);
308 |
309 | g_free(ipfilter)(__builtin_object_size ((ipfilter), 0) != ((size_t) - 1)) ? g_free_sized (ipfilter, __builtin_object_size ((ipfilter), 0)) : (g_free) (ipfilter);
310 |
311 | return EXIT_SUCCESS0;
312 | }
313 |
314 | static char* concat_filters(const char* extcap_filter, const char* remote_filter)
315 | {
316 | if (!extcap_filter && remote_filter)
317 | return g_strdup(remote_filter)g_strdup_inline (remote_filter);
318 |
319 | if (!remote_filter && extcap_filter)
320 | return g_strdup(extcap_filter)g_strdup_inline (extcap_filter);
321 |
322 | if (!remote_filter && !extcap_filter)
323 | return NULL((void*)0);
324 |
325 | return ws_strdup_printf("(%s) and (%s)", extcap_filter, remote_filter)wmem_strdup_printf(((void*)0), "(%s) and (%s)", extcap_filter , remote_filter);
326 | }
327 |
328 | int main(int argc, char *argv[])
329 | {
330 | char* err_msg;
331 | int result;
332 | int option_idx = 0;
333 | ssh_params_t* ssh_params = ssh_params_new();
334 | char* remote_interface = NULL((void*)0);
335 | char* remote_capture_command_select = NULL((void*)0);
336 | char* remote_capture_command = NULL((void*)0);
337 | char* remote_filter = NULL((void*)0);
338 | uint32_t count = 0;
339 | int ret = EXIT_FAILURE1;
340 | extcap_parameters* extcap_conf = g_new0(extcap_parameters, 1)((extcap_parameters *) g_malloc0_n ((1), sizeof (extcap_parameters )));
341 | char* help_url;
342 | char* help_header = NULL((void*)0);
343 | char* priv = NULL((void*)0);
344 | char* priv_user = NULL((void*)0);
345 | bool_Bool noprom = false0;
346 | char* interface_description = g_strdup("SSH remote capture")g_strdup_inline ("SSH remote capture");
347 |
348 | /* Set the program name. */
349 | g_set_prgname("sshdump");
350 |
351 | /* Initialize log handler early so we can have proper logging during startup. */
352 | extcap_log_init();
353 |
354 | sshdump_extcap_interface = g_path_get_basename(argv[0]);
355 | if (g_str_has_suffix(sshdump_extcap_interface, ".exe")(__builtin_constant_p (".exe")? __extension__ ({ const char * const __str = (sshdump_extcap_interface); const char * const __suffix = (".exe"); gboolean __result = (0); if (__str == ( (void*)0) || __suffix == ((void*)0)) __result = (g_str_has_suffix ) (__str, __suffix); else { const size_t __str_len = strlen ( ((__str) + !(__str))); const size_t __suffix_len = strlen ((( __suffix) + !(__suffix))); if (__str_len >= __suffix_len) __result = memcmp (__str + __str_len - __suffix_len, ((__suffix) + !( __suffix)), __suffix_len) == 0; } __result; }) : (g_str_has_suffix ) (sshdump_extcap_interface, ".exe") )) {
1 | '?' condition is true | →
2 | ← | Assuming '__str' is not equal to null | →
3 | ← | Taking false branch | →
4 | ← | Assuming '__str_len' is < '__suffix_len' | →
5 | ← | Taking false branch | →
6 | ← | Taking false branch | →
356 | sshdump_extcap_interface[strlen(sshdump_extcap_interface) - 4] = '\0';
357 | }
358 |
359 | /*
360 | * Get credential information for later use.
361 | */
362 | init_process_policies();
363 |
364 | /*
365 | * Attempt to get the pathname of the directory containing the
366 | * executable file.
367 | */
368 | err_msg = configuration_init(argv[0], "wireshark");
369 | if (err_msg != NULL((void*)0)) {
7 | ← | Assuming 'err_msg' is equal to NULL | →
8 | ← | Taking false branch | →
370 | ws_warning("Can't get pathname of directory containing the extcap program: %s.",do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 371, __func__, "Can't get pathname of directory containing the extcap program: %s." , err_msg); } } while (0)
371 | err_msg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 371, __func__, "Can't get pathname of directory containing the extcap program: %s." , err_msg); } } while (0);
372 | g_free(err_msg)(__builtin_object_size ((err_msg), 0) != ((size_t) - 1)) ? g_free_sized (err_msg, __builtin_object_size ((err_msg), 0)) : (g_free) ( err_msg);
373 | }
374 |
375 | help_url = data_file_url("sshdump.html", application_configuration_environment_prefix());
376 | extcap_base_set_util_info(extcap_conf, argv[0], SSHDUMP_VERSION_MAJOR"1", SSHDUMP_VERSION_MINOR"2",
377 | SSHDUMP_VERSION_RELEASE"0", help_url);
378 | g_free(help_url)(__builtin_object_size ((help_url), 0) != ((size_t) - 1)) ? g_free_sized (help_url, __builtin_object_size ((help_url), 0)) : (g_free) (help_url);
9 | ← | Assuming the condition is false | →
10 | ← | '?' condition is false | →
379 | add_libssh_info(extcap_conf);
380 | if (g_strcmp0(sshdump_extcap_interface, DEFAULT_SSHDUMP_EXTCAP_INTERFACE"sshdump")) {
11 | ← | Assuming the condition is false | →
12 | ← | Taking false branch | →
381 | char* temp = interface_description;
382 | interface_description = ws_strdup_printf("%s, custom version", interface_description)wmem_strdup_printf(((void*)0), "%s, custom version", interface_description );
383 | g_free(temp)(__builtin_object_size ((temp), 0) != ((size_t) - 1)) ? g_free_sized (temp, __builtin_object_size ((temp), 0)) : (g_free) (temp);
384 | }
385 | extcap_base_register_interface(extcap_conf, sshdump_extcap_interface, interface_description, 147, "Remote capture dependent DLT");
386 | g_free(interface_description)(__builtin_object_size ((interface_description), 0) != ((size_t ) - 1)) ? g_free_sized (interface_description, __builtin_object_size ((interface_description), 0)) : (g_free) (interface_description );
13 | ← | Assuming the condition is false | →
14 | ← | '?' condition is false | →
387 |
388 | help_header = ws_strdup_printf(wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface )
389 | " %s --extcap-interfaces\n"wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface )
390 | " %s --extcap-interface=%s --extcap-dlts\n"wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface )
391 | " %s --extcap-interface=%s --extcap-config\n"wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface )
392 | " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 "wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface )
393 | "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' "wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface )
394 | "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface, argv[0],wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface )
395 | sshdump_extcap_interface, argv[0], sshdump_extcap_interface)wmem_strdup_printf(((void*)0), " %s --extcap-interfaces\n" " %s --extcap-interface=%s --extcap-dlts\n" " %s --extcap-interface=%s --extcap-config\n" " %s --extcap-interface=%s --remote-host myhost --remote-port 22222 " "--remote-username myuser --remote-interface eth2 --remote-capture-command 'tcpdump -U -i eth0 -w -' " "--fifo=FILENAME --capture\n", argv[0], argv[0], sshdump_extcap_interface , argv[0], sshdump_extcap_interface, argv[0], sshdump_extcap_interface );
396 | extcap_help_add_header(extcap_conf, help_header);
397 | g_free(help_header)(__builtin_object_size ((help_header), 0) != ((size_t) - 1)) ? g_free_sized (help_header, __builtin_object_size ((help_header ), 0)) : (g_free) (help_header);
15 | ← | Assuming the condition is false | →
16 | ← | '?' condition is false | →
398 | extcap_help_add_option(extcap_conf, "--help", "print this help");
399 | extcap_help_add_option(extcap_conf, "--version", "print the version");
400 | ssh_base_add_help_options(extcap_conf);
401 | extcap_help_add_option(extcap_conf, "--remote-interface <iface>", "the remote capture interface");
402 | extcap_help_add_option(extcap_conf, "--remote-capture-command-select <selection>", "dumpcap, tcpdump or other remote capture command");
403 | extcap_help_add_option(extcap_conf, "--remote-capture-command <capture command>", "the remote capture command");
404 | //extcap_help_add_option(extcap_conf, "--remote-sudo", "use sudo on the remote machine to capture"); // Deprecated
405 | extcap_help_add_option(extcap_conf, "--remote-priv <selection>", "none, sudo or doas");
406 | extcap_help_add_option(extcap_conf, "--remote-priv-user <username>", "privileged user name");
407 | extcap_help_add_option(extcap_conf, "--remote-noprom", "don't use promiscuous mode on the remote machine");
408 | extcap_help_add_option(extcap_conf, "--remote-filter <filter>", "a filter for remote capture (default: don't listen on local interfaces IPs)");
409 | extcap_help_add_option(extcap_conf, "--remote-count <count>", "the number of packets to capture");
410 |
411 | ws_opterr = 0;
412 | ws_optind = 0;
413 |
414 | if (argc == 1) {
17 | ← | Assuming 'argc' is not equal to 1 | →
18 | ← | Taking false branch | →
415 | extcap_help_print(extcap_conf);
416 | goto end;
417 | }
418 |
419 | // Do this before reading the options, which sets up the control pipe
420 | if (!ssh_base_setup_graceful_shutdown(extcap_conf)) {
19 | ← | Assuming the condition is false | →
20 | ← | Taking false branch | →
421 | ret = EXIT_FAILURE1;
422 | goto end;
423 | }
424 |
425 | while ((result = ws_getopt_long(argc, argv, ":", longopts, &option_idx)) != -1) {
21 | ← | Assuming the condition is false | →
22 | ← | Loop condition is false. Execution continues on line 546 | →
426 |
427 | switch (result) {
428 |
429 | case OPT_HELP:
430 | extcap_help_print(extcap_conf);
431 | ret = EXIT_SUCCESS0;
432 | goto end;
433 |
434 | case OPT_VERSION:
435 | extcap_version_print(extcap_conf);
436 | ret = EXIT_SUCCESS0;
437 | goto end;
438 |
439 | case OPT_REMOTE_HOST:
440 | g_free(ssh_params->host)(__builtin_object_size ((ssh_params->host), 0) != ((size_t ) - 1)) ? g_free_sized (ssh_params->host, __builtin_object_size ((ssh_params->host), 0)) : (g_free) (ssh_params->host);
441 | ssh_params->host = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
442 | break;
443 |
444 | case OPT_REMOTE_PORT:
445 | if (!ws_strtou16(ws_optarg, NULL((void*)0), &ssh_params->port) || ssh_params->port == 0) {
446 | ws_warning("Invalid port: %s", ws_optarg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 446, __func__, "Invalid port: %s", ws_optarg); } } while (0 );
447 | goto end;
448 | }
449 | break;
450 |
451 | case OPT_REMOTE_USERNAME:
452 | g_free(ssh_params->username)(__builtin_object_size ((ssh_params->username), 0) != ((size_t ) - 1)) ? g_free_sized (ssh_params->username, __builtin_object_size ((ssh_params->username), 0)) : (g_free) (ssh_params->username );
453 | ssh_params->username = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
454 | break;
455 |
456 | case OPT_REMOTE_PASSWORD:
457 | g_free(ssh_params->password)(__builtin_object_size ((ssh_params->password), 0) != ((size_t ) - 1)) ? g_free_sized (ssh_params->password, __builtin_object_size ((ssh_params->password), 0)) : (g_free) (ssh_params->password );
458 | ssh_params->password = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
459 | memset(ws_optarg, 'X', strlen(ws_optarg));
460 | break;
461 |
462 | case OPT_SSHKEY:
463 | g_free(ssh_params->sshkey_path)(__builtin_object_size ((ssh_params->sshkey_path), 0) != ( (size_t) - 1)) ? g_free_sized (ssh_params->sshkey_path, __builtin_object_size ((ssh_params->sshkey_path), 0)) : (g_free) (ssh_params-> sshkey_path);
464 | ssh_params->sshkey_path = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
465 | break;
466 |
467 | case OPT_SSHKEY_PASSPHRASE:
468 | g_free(ssh_params->sshkey_passphrase)(__builtin_object_size ((ssh_params->sshkey_passphrase), 0 ) != ((size_t) - 1)) ? g_free_sized (ssh_params->sshkey_passphrase , __builtin_object_size ((ssh_params->sshkey_passphrase), 0 )) : (g_free) (ssh_params->sshkey_passphrase);
469 | ssh_params->sshkey_passphrase = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
470 | memset(ws_optarg, 'X', strlen(ws_optarg));
471 | break;
472 |
473 | case OPT_PROXYCOMMAND:
474 | g_free(ssh_params->proxycommand)(__builtin_object_size ((ssh_params->proxycommand), 0) != ( (size_t) - 1)) ? g_free_sized (ssh_params->proxycommand, __builtin_object_size ((ssh_params->proxycommand), 0)) : (g_free) (ssh_params-> proxycommand);
475 | ssh_params->proxycommand = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
476 | break;
477 |
478 | case OPT_SSH_SHA1:
479 | ssh_params->ssh_sha1 = true1;
480 | break;
481 |
482 | case OPT_UPDATE_KNOWN_HOSTS:
483 | ssh_params->update_known_hosts = true1;
484 | break;
485 |
486 | case OPT_REMOTE_INTERFACE:
487 | g_free(remote_interface)(__builtin_object_size ((remote_interface), 0) != ((size_t) - 1)) ? g_free_sized (remote_interface, __builtin_object_size ( (remote_interface), 0)) : (g_free) (remote_interface);
488 | remote_interface = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
489 | break;
490 |
491 | case OPT_REMOTE_CAPTURE_COMMAND_SELECT:
492 | g_free(remote_capture_command_select)(__builtin_object_size ((remote_capture_command_select), 0) != ((size_t) - 1)) ? g_free_sized (remote_capture_command_select , __builtin_object_size ((remote_capture_command_select), 0)) : (g_free) (remote_capture_command_select);
493 | remote_capture_command_select = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
494 | break;
495 |
496 | case OPT_REMOTE_CAPTURE_COMMAND:
497 | g_free(remote_capture_command)(__builtin_object_size ((remote_capture_command), 0) != ((size_t ) - 1)) ? g_free_sized (remote_capture_command, __builtin_object_size ((remote_capture_command), 0)) : (g_free) (remote_capture_command );
498 | remote_capture_command = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
499 | break;
500 |
501 | case OPT_REMOTE_SUDO:
502 | // Deprecated
503 | g_free(priv)(__builtin_object_size ((priv), 0) != ((size_t) - 1)) ? g_free_sized (priv, __builtin_object_size ((priv), 0)) : (g_free) (priv);
504 | priv = g_strdup("sudo")g_strdup_inline ("sudo");
505 | break;
506 |
507 | case OPT_REMOTE_PRIV:
508 | g_free(priv)(__builtin_object_size ((priv), 0) != ((size_t) - 1)) ? g_free_sized (priv, __builtin_object_size ((priv), 0)) : (g_free) (priv);
509 | priv = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
510 | break;
511 |
512 | case OPT_REMOTE_PRIV_USER:
513 | g_free(priv_user)(__builtin_object_size ((priv_user), 0) != ((size_t) - 1)) ? g_free_sized (priv_user, __builtin_object_size ((priv_user), 0)) : (g_free ) (priv_user);
514 | priv_user = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
515 | break;
516 |
517 | case OPT_REMOTE_FILTER:
518 | g_free(remote_filter)(__builtin_object_size ((remote_filter), 0) != ((size_t) - 1) ) ? g_free_sized (remote_filter, __builtin_object_size ((remote_filter ), 0)) : (g_free) (remote_filter);
519 | remote_filter = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
520 | break;
521 |
522 | case OPT_REMOTE_COUNT:
523 | if (!ws_strtou32(ws_optarg, NULL((void*)0), &count)) {
524 | ws_warning("Invalid value for count: %s", ws_optarg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 524, __func__, "Invalid value for count: %s", ws_optarg); } } while (0);
525 | goto end;
526 | }
527 | break;
528 |
529 | case OPT_REMOTE_NOPROM:
530 | noprom = true1;
531 | break;
532 |
533 | case ':':
534 | /* missing option argument */
535 | ws_warning("Option '%s' requires an argument", argv[ws_optind - 1])do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 535, __func__, "Option '%s' requires an argument", argv[ws_optind - 1]); } } while (0);
536 | break;
537 |
538 | default:
539 | if (!extcap_base_parse_options(extcap_conf, result - EXTCAP_OPT_LIST_INTERFACES, ws_optarg)) {
540 | ws_warning("Invalid option: %s", argv[ws_optind - 1])do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 540, __func__, "Invalid option: %s", argv[ws_optind - 1]); } } while (0);
541 | goto end;
542 | }
543 | }
544 | }
545 |
546 | extcap_cmdline_debug(argv, argc);
547 |
548 | if (extcap_base_handle_interface(extcap_conf)) {
23 | ← | Assuming the condition is false | →
24 | ← | Taking false branch | →
549 | ret = EXIT_SUCCESS0;
550 | goto end;
551 | }
552 |
553 | if (extcap_conf->show_config) {
25 | ← | Assuming field 'show_config' is 0 | →
26 | ← | Taking false branch | →
554 | ret = list_config(extcap_conf->interface, ssh_params->port);
555 | goto end;
556 | }
557 |
558 | err_msg = ws_init_sockets();
559 | if (err_msg != NULL((void*)0)) {
27 | ← | Assuming 'err_msg' is equal to NULL | →
28 | ← | Taking false branch | →
560 | ws_warning("ERROR: %s", err_msg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 560, __func__, "ERROR: %s", err_msg); } } while (0);
561 | g_free(err_msg)(__builtin_object_size ((err_msg), 0) != ((size_t) - 1)) ? g_free_sized (err_msg, __builtin_object_size ((err_msg), 0)) : (g_free) ( err_msg);
562 | ws_warning("%s", please_report_bug())do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 562, __func__, "%s", please_report_bug()); } } while (0);
563 | goto end;
564 | }
565 |
566 | if (extcap_conf->capture) {
29 | ← | Assuming field 'capture' is not equal to 0 | →
30 | ← | Taking true branch | →
567 | char* filter;
568 | char* privilege;
569 |
570 | if (!ssh_params->host) {
31 | ← | Assuming field 'host' is non-null | →
571 | ws_warning("Missing parameter: --remote-host")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 571, __func__, "Missing parameter: --remote-host"); } } while (0);
572 | goto end;
573 | }
574 |
575 | if ((priv
31.1 | 'priv' is null
) && g_strcmp0(priv, "none") && strlen(g_strstrip(priv)g_strchomp (g_strchug (priv)))) {
576 | if ((priv_user) && strlen(g_strstrip(priv_user)g_strchomp (g_strchug (priv_user))))
577 | /* Both sudo and doas use the same command line option */
578 | privilege = g_strconcat(priv, " -u ", priv_user, NULL((void*)0));
579 | else
580 | privilege = g_strdup(priv)g_strdup_inline (priv);
581 | } else {
582 | privilege = g_strdup("")g_strdup_inline ("");
583 | }
584 |
585 | // This may result in the use of a different port number than was given in
586 | // the default filter string, as presented in the config dialog. The default
587 | // given is always using the default SSH port since there's no remote SSH port
588 | // given on the command line to get the extcap arguments.
589 | // However the remote SSH port used here is the one given on the command line
590 | // when the capture us started, which is the intended one.
591 | // And this is only happening when no remote filter is specified on the command
592 | // line to start the capture.
593 | if (remote_filter
31.2 | 'remote_filter' is equal to NULL
== NULL((void*)0))
32 | ← | Taking true branch | →
594 | remote_filter = local_interfaces_to_filter(ssh_params->port);
595 | filter = concat_filters(extcap_conf->capture_filter, remote_filter);
596 | ssh_params_set_log_level(ssh_params, extcap_conf->debug);
597 | ret = ssh_open_remote_connection(ssh_params, remote_interface,
33 | ← | Calling 'ssh_open_remote_connection' | →
598 | filter, remote_capture_command_select, remote_capture_command,
599 | privilege, noprom, count, extcap_conf->fifo);
600 | g_free(filter)(__builtin_object_size ((filter), 0) != ((size_t) - 1)) ? g_free_sized (filter, __builtin_object_size ((filter), 0)) : (g_free) (filter );
601 | g_free(privilege)(__builtin_object_size ((privilege), 0) != ((size_t) - 1)) ? g_free_sized (privilege, __builtin_object_size ((privilege), 0)) : (g_free ) (privilege);
602 | } else {
603 | ws_debug("You should not come here... maybe some parameter missing?")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_DEBUG, "extcap/sshdump.c" , 603, __func__, "You should not come here... maybe some parameter missing?" ); } } while (0);
604 | ret = EXIT_FAILURE1;
605 | }
606 |
607 | end:
608 | /* clean up stuff */
609 | ssh_params_free(ssh_params);
610 | g_free(remote_capture_command_select)(__builtin_object_size ((remote_capture_command_select), 0) != ((size_t) - 1)) ? g_free_sized (remote_capture_command_select , __builtin_object_size ((remote_capture_command_select), 0)) : (g_free) (remote_capture_command_select);
611 | g_free(remote_capture_command)(__builtin_object_size ((remote_capture_command), 0) != ((size_t ) - 1)) ? g_free_sized (remote_capture_command, __builtin_object_size ((remote_capture_command), 0)) : (g_free) (remote_capture_command );
612 | g_free(remote_interface)(__builtin_object_size ((remote_interface), 0) != ((size_t) - 1)) ? g_free_sized (remote_interface, __builtin_object_size ( (remote_interface), 0)) : (g_free) (remote_interface);
613 | g_free(remote_filter)(__builtin_object_size ((remote_filter), 0) != ((size_t) - 1) ) ? g_free_sized (remote_filter, __builtin_object_size ((remote_filter ), 0)) : (g_free) (remote_filter);
614 | g_free(priv)(__builtin_object_size ((priv), 0) != ((size_t) - 1)) ? g_free_sized (priv, __builtin_object_size ((priv), 0)) : (g_free) (priv);
615 | g_free(priv_user)(__builtin_object_size ((priv_user), 0) != ((size_t) - 1)) ? g_free_sized (priv_user, __builtin_object_size ((priv_user), 0)) : (g_free ) (priv_user);
616 | extcap_base_cleanup(&extcap_conf);
617 | return ret;
618 | }
619 |
620 | /*
621 | * Editor modelines - https://www.wireshark.org/tools/modelines.html
622 | *
623 | * Local variables:
624 | * c-basic-offset: 8
625 | * tab-width: 8
626 | * indent-tabs-mode: t
627 | * End:
628 | *
629 | * vi: set shiftwidth=8 tabstop=8 noexpandtab:
630 | * :indentSize=8:tabSize=8:noTabs=false:
631 | */