### Bug Summary

File: | builds/wireshark/wireshark/extcap/sshdump.c
Warning: | line 222, 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/2026-09-06-100407-3660-1 -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 | static char* sshdump_extcap_interface;
32 | #define DEFAULT_SSHDUMP_EXTCAP_INTERFACE"sshdump" "sshdump"
33 |
34 | #define SSHDUMP_VERSION_MAJOR"1" "1"
35 | #define SSHDUMP_VERSION_MINOR"2" "2"
36 | #define SSHDUMP_VERSION_RELEASE"0" "0"
37 |
38 | enum {
39 | 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_CONTROL_OUT, EXTCAP_OPT_CONTROL_IN, EXTCAP_OPT_LOG_LEVEL , EXTCAP_OPT_LOG_FILE,
40 | OPT_HELP,
41 | OPT_VERSION,
42 | 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,
43 | OPT_REMOTE_CAPTURE_COMMAND_SELECT,
44 | OPT_REMOTE_CAPTURE_COMMAND,
45 | OPT_REMOTE_COUNT,
46 | OPT_REMOTE_SUDO, // Deprecated
47 | OPT_REMOTE_PRIV,
48 | OPT_REMOTE_PRIV_USER,
49 | OPT_REMOTE_NOPROM
50 | };
51 |
52 | static const struct ws_option longopts[] = {
53 | 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}, { "extcap-control-out", 1, ((void*)0) , EXTCAP_OPT_CONTROL_OUT}, { "extcap-control-in", 1, ((void*) 0), EXTCAP_OPT_CONTROL_IN}, { "log-level", 1, ((void*)0), EXTCAP_OPT_LOG_LEVEL }, { "log-file", 1, ((void*)0), EXTCAP_OPT_LOG_FILE},
54 | { "help", ws_no_argument0, NULL((void*)0), OPT_HELP},
55 | { "version", ws_no_argument0, NULL((void*)0), OPT_VERSION},
56 | 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},
57 | { "remote-capture-command-select", ws_required_argument1, NULL((void*)0), OPT_REMOTE_CAPTURE_COMMAND_SELECT},
58 | { "remote-capture-command", ws_required_argument1, NULL((void*)0), OPT_REMOTE_CAPTURE_COMMAND},
59 | { "remote-sudo", ws_no_argument0, NULL((void*)0), OPT_REMOTE_SUDO }, // Deprecated
60 | { "remote-priv", ws_required_argument1, NULL((void*)0), OPT_REMOTE_PRIV },
61 | { "remote-priv-user", ws_required_argument1, NULL((void*)0), OPT_REMOTE_PRIV_USER },
62 | { "remote-noprom", ws_no_argument0, NULL((void*)0), OPT_REMOTE_NOPROM },
63 | { 0, 0, 0, 0}
64 | };
65 |
66 | static char* interfaces_list_to_filter(GSList* if_list, unsigned int remote_port);
67 |
68 | static char* local_interfaces_to_filter(const uint16_t remote_port)
69 | {
70 | GSList* interfaces = local_interfaces_to_list();
71 | char* filter = interfaces_list_to_filter(interfaces, remote_port);
72 | g_slist_free_full(interfaces, g_free);
73 | return filter;
74 | }
75 |
76 | static ssh_channel run_ssh_command(ssh_session sshs, const char* capture_command_select,
77 | const char* capture_command, const char* privilege, bool_Bool noprom,
78 | const char* iface, const char* cfilter, const uint32_t count)
79 | {
80 | char* cmdline = NULL((void*)0);
81 | ssh_channel channel;
82 | char** ifaces_array = NULL((void*)0);
83 | int ifaces_array_num = 0;
84 | GString *ifaces_string;
85 | char *ifaces = NULL((void*)0);
86 | char* quoted_iface = NULL((void*)0);
87 | char* quoted_filter = NULL((void*)0);
88 | char* count_str = NULL((void*)0);
89 | unsigned int remote_port = 22;
90 |
91 | channel = ssh_channel_new(sshs);
92 | if (!channel) {
93 | ws_warning("Can't create channel")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 93, __func__, "Can't create channel"); } } while (0);
94 | return NULL((void*)0);
95 | }
96 |
97 | if (ssh_channel_open_session(channel) != SSH_OK0) {
98 | ws_warning("Can't open session")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 98, __func__, "Can't open session"); } } while (0);
99 | ssh_channel_free(channel);
100 | return NULL((void*)0);
101 | }
102 |
103 | ssh_options_get_port(sshs, &remote_port);
104 |
105 | if (capture_command_select == NULL((void*)0) || !g_strcmp0(capture_command_select, "other")) {
106 | if (capture_command && *capture_command) {
107 | cmdline = g_strdup(capture_command)g_strdup_inline (capture_command);
108 | ws_debug("Remote capture command has disabled other options")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_DEBUG, "extcap/sshdump.c" , 108, __func__, "Remote capture command has disabled other options" ); } } while (0);
109 | } else {
110 | capture_command_select = "tcpdump";
111 | }
112 | }
113 |
114 | /* escape parameters to go save with the shell */
115 | if (!g_strcmp0(capture_command_select, "tcpdump")) {
116 | quoted_iface = iface ? g_shell_quote(iface) : NULL((void*)0);
117 | quoted_filter = g_shell_quote(cfilter ? cfilter : "");
118 | if (count > 0)
119 | count_str = ws_strdup_printf("-c %u", count)wmem_strdup_printf(((void*)0), "-c %u", count);
120 |
121 | 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 )
122 | 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 )
123 | 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 )
124 | 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 )
125 | 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 )
126 | 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 )
127 | 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 );
128 | } else if (!g_strcmp0(capture_command_select, "dumpcap")) {
129 | if (iface) {
130 | ifaces_array = g_strsplit(iface, " ", -1);
131 | ifaces_string = g_string_new(NULL((void*)0));
132 | while (ifaces_array[ifaces_array_num])
133 | {
134 | quoted_iface = g_shell_quote(ifaces_array[ifaces_array_num]);
135 | g_string_append_printf(ifaces_string, "-i %s ", quoted_iface);
136 | ifaces_array_num++;
137 | }
138 | 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))));
139 | }
140 | quoted_filter = g_shell_quote(cfilter ? cfilter : "");
141 | if (count > 0)
142 | count_str = ws_strdup_printf("-c %u", count)wmem_strdup_printf(((void*)0), "-c %u", count);
143 |
144 | 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)
145 | 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)
146 | 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)
147 | 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)
148 | 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)
149 | 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);
150 |
151 | g_free(ifaces)(__builtin_object_size ((ifaces), 0) != ((size_t) - 1)) ? g_free_sized (ifaces, __builtin_object_size ((ifaces), 0)) : (g_free) (ifaces );
152 | g_strfreev(ifaces_array);
153 | }
154 |
155 | ws_debug("Running: %s", cmdline)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_DEBUG, "extcap/sshdump.c" , 155, __func__, "Running: %s", cmdline); } } while (0);
156 | if (ssh_channel_request_exec(channel, cmdline) != SSH_OK0) {
157 | ws_warning("Can't request exec")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 157, __func__, "Can't request exec"); } } while (0);
158 | ssh_channel_close(channel);
159 | ssh_channel_free(channel);
160 | channel = NULL((void*)0);
161 | }
162 |
163 | 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);
164 | 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);
165 | g_free(cmdline)(__builtin_object_size ((cmdline), 0) != ((size_t) - 1)) ? g_free_sized (cmdline, __builtin_object_size ((cmdline), 0)) : (g_free) ( cmdline);
166 | 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);
167 |
168 | return channel;
169 | }
170 |
171 | static int ssh_open_remote_connection(const ssh_params_t* params, const char* iface, const char* cfilter,
172 | const char* capture_command_select, const char* capture_command, const char* privilege,
173 | bool_Bool noprom, const uint32_t count, const char* fifo)
174 | {
175 | ssh_session sshs = NULL((void*)0);
176 | ssh_channel channel = NULL((void*)0);
177 | FILE* fp = stdoutstdout;
178 | int ret = EXIT_FAILURE1;
179 | char* err_info = NULL((void*)0);
180 |
181 | if (g_strcmp0(fifo, "-")) {
34 | ← | Assuming the condition is true | →
35 | ← | Taking true branch | →
182 | /* Open or create the output file */
183 | fp = fopen(fifo, "wb");
36 | ← | Stream opened here | →
37 | ← | Assuming that 'fopen' is successful | →
184 | if (fp
37.1 | 'fp' is not equal to NULL
== NULL((void*)0)) {
38 | ← | Taking false branch | →
185 | 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" , 185, __func__, "Error creating output file: %s (%s)", fifo, g_strerror((*__errno_location ()))); } } while (0);
186 | return EXIT_FAILURE1;
187 | }
188 | }
189 |
190 | sshs = create_ssh_connection(params, &err_info);
191 |
192 | if (!sshs) {
39 | ← | Assuming 'sshs' is null | →
40 | ← | Taking true branch | →
193 | ws_warning("Error creating connection.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 193, __func__, "Error creating connection."); } } while (0);
41 | ← | Taking true branch | →
42 | ← | Loop condition is false. Exiting loop | →
194 | goto cleanup;
43 | ← | Control jumps to line 213 | →
195 | }
196 |
197 | channel = run_ssh_command(sshs, capture_command_select, capture_command, privilege, noprom, iface, cfilter, count);
198 |
199 | if (!channel) {
200 | ws_warning("Can't run ssh command.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 200, __func__, "Can't run ssh command."); } } while (0);
201 | goto cleanup;
202 | }
203 |
204 | /* read from channel and write into fp */
205 | if (ssh_async_loop_read(sshs, channel, fp) != EXIT_SUCCESS0) {
206 | ws_warning("Error in read loop.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 206, __func__, "Error in read loop."); } } while (0);
207 | ret = EXIT_FAILURE1;
208 | goto cleanup;
209 | }
210 |
211 | ret = EXIT_SUCCESS0;
212 | cleanup:
213 | if (err_info)
44 | ← | Assuming 'err_info' is null | →
214 | ws_warning("%s", err_info)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 214, __func__, "%s", err_info); } } while (0);
215 | 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 | →
216 |
217 | /* clean up and exit */
218 | ssh_cleanup(&sshs, &channel);
219 |
220 | if (g_strcmp0(fifo, "-"))
48 | ← | Assuming the condition is false | →
49 | ← | Taking false branch | →
221 | fclose(fp);
222 | return ret;
50 | ← | Opened stream never closed. Potential resource leak
223 | }
224 |
225 | static char* interfaces_list_to_filter(GSList* interfaces, unsigned int remote_port)
226 | {
227 | GString* filter = g_string_new(NULL((void*)0));
228 | GSList* cur;
229 |
230 | // If no port is given, assume the default one. This might not be
231 | // correct if the port is looked up from the ssh config file, but it is
232 | // better than nothing.
233 | if (remote_port == 0) {
234 | remote_port = 22;
235 | }
236 |
237 | if (!interfaces) {
238 | g_string_append_printf(filter, "not port %u", remote_port);
239 | } else {
240 | g_string_append_printf(filter, "not ((host %s", (char*)interfaces->data);
241 | cur = g_slist_next(interfaces)((interfaces) ? (((GSList *)(interfaces))->next) : ((void* )0));
242 | while (cur) {
243 | g_string_append_printf(filter, " or host %s", (char*)cur->data);
244 | cur = g_slist_next(cur)((cur) ? (((GSList *)(cur))->next) : ((void*)0));
245 | }
246 | g_string_append_printf(filter, ") and port %u)", remote_port);
247 | }
248 | 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))));
249 | }
250 |
251 | static int list_config(char *interface, unsigned int remote_port)
252 | {
253 | unsigned inc = 0;
254 | char* ipfilter;
255 |
256 | if (!interface) {
257 | ws_warning("ERROR: No interface specified.")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 257, __func__, "ERROR: No interface specified."); } } while (0);
258 | return EXIT_FAILURE1;
259 | }
260 |
261 | if (g_strcmp0(interface, sshdump_extcap_interface)) {
262 | ws_warning("ERROR: interface must be %s", sshdump_extcap_interface)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 262, __func__, "ERROR: interface must be %s", sshdump_extcap_interface ); } } while (0);
263 | return EXIT_FAILURE1;
264 | }
265 |
266 | ipfilter = local_interfaces_to_filter(remote_port);
267 |
268 | ssh_base_list_config(&inc);
269 |
270 | printf("arg {number=%u}{call=--remote-interface}{display=Remote interface}"
271 | "{type=string}{tooltip=The remote network interface used for capture"
272 | "}{group=Capture}\n", inc++);
273 | printf("arg {number=%u}{call=--remote-capture-command-select}{display=Remote capture command selection}"
274 | "{type=radio}{tooltip=The remote capture command to build a command line for}{group=Capture}\n", inc);
275 | printf("value {arg=%u}{value=dumpcap}{display=dumpcap}\n", inc);
276 | printf("value {arg=%u}{value=tcpdump}{display=tcpdump}{default=true}\n", inc);
277 | printf("value {arg=%u}{value=other}{display=Other:}\n", inc++);
278 | printf("arg {number=%u}{call=--remote-capture-command}{display=Remote capture command}"
279 | "{type=string}{tooltip=The remote command used to capture}{group=Capture}\n", inc++);
280 | // Deprecated
281 | //printf("arg {number=%u}{call=--remote-sudo}{display=Use sudo on the remote machine}"
282 | // "{type=boolflag}{tooltip=Prepend the capture command with sudo on the remote machine}"
283 | // "{group=Capture}\n", inc++);
284 | printf("arg {number=%u}{call=--remote-priv}{display=Gain capture privilege on the remote machine}"
285 | "{type=radio}{tooltip=Optionally prepend the capture command with sudo or doas on the remote machine}"
286 | "{group=Capture}\n", inc);
287 | printf("value {arg=%u}{value=none}{display=none}{default=true}\n", inc);
288 | printf("value {arg=%u}{value=sudo}{display=sudo}\n", inc);
289 | printf("value {arg=%u}{value=doas -n}{display=doas}\n", inc++);
290 | printf("arg {number=%u}{call=--remote-priv-user}{display=Privileged user name for sudo or doas}"
291 | "{type=string}{tooltip=User name of privileged user to execute the capture command on the remote machine}"
292 | "{group=Capture}\n", inc++);
293 | printf("arg {number=%u}{call=--remote-noprom}{display=No promiscuous mode}"
294 | "{type=boolflag}{tooltip=Don't use promiscuous mode on the remote machine}{group=Capture}"
295 | "\n", inc++);
296 | printf("arg {number=%u}{call=--remote-filter}{display=Remote capture filter}{type=string}"
297 | "{tooltip=The remote capture filter}", inc++);
298 | if (ipfilter)
299 | printf("{default=%s}", ipfilter);
300 | printf("{group=Capture}\n");
301 | printf("arg {number=%u}{call=--remote-count}{display=Packets to capture}"
302 | "{type=unsigned}{default=0}{tooltip=The number of remote packets to capture. (Default: inf)}"
303 | "{group=Capture}\n", inc++);
304 |
305 | extcap_config_debug(&inc);
306 |
307 | g_free(ipfilter)(__builtin_object_size ((ipfilter), 0) != ((size_t) - 1)) ? g_free_sized (ipfilter, __builtin_object_size ((ipfilter), 0)) : (g_free) (ipfilter);
308 |
309 | return EXIT_SUCCESS0;
310 | }
311 |
312 | static char* concat_filters(const char* extcap_filter, const char* remote_filter)
313 | {
314 | if (!extcap_filter && remote_filter)
315 | return g_strdup(remote_filter)g_strdup_inline (remote_filter);
316 |
317 | if (!remote_filter && extcap_filter)
318 | return g_strdup(extcap_filter)g_strdup_inline (extcap_filter);
319 |
320 | if (!remote_filter && !extcap_filter)
321 | return NULL((void*)0);
322 |
323 | return ws_strdup_printf("(%s) and (%s)", extcap_filter, remote_filter)wmem_strdup_printf(((void*)0), "(%s) and (%s)", extcap_filter , remote_filter);
324 | }
325 |
326 | int main(int argc, char *argv[])
327 | {
328 | char* err_msg;
329 | int result;
330 | int option_idx = 0;
331 | ssh_params_t* ssh_params = ssh_params_new();
332 | char* remote_interface = NULL((void*)0);
333 | char* remote_capture_command_select = NULL((void*)0);
334 | char* remote_capture_command = NULL((void*)0);
335 | char* remote_filter = NULL((void*)0);
336 | uint32_t count = 0;
337 | int ret = EXIT_FAILURE1;
338 | extcap_parameters* extcap_conf = g_new0(extcap_parameters, 1)((extcap_parameters *) g_malloc0_n ((1), sizeof (extcap_parameters )));
339 | char* help_url;
340 | char* help_header = NULL((void*)0);
341 | char* priv = NULL((void*)0);
342 | char* priv_user = NULL((void*)0);
343 | bool_Bool noprom = false0;
344 | char* interface_description = g_strdup("SSH remote capture")g_strdup_inline ("SSH remote capture");
345 |
346 | /* Set the program name. */
347 | g_set_prgname("sshdump");
348 |
349 | /* Initialize log handler early so we can have proper logging during startup. */
350 | extcap_log_init(extcap_conf);
351 |
352 | sshdump_extcap_interface = g_path_get_basename(argv[0]);
353 | 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 | →
354 | sshdump_extcap_interface[strlen(sshdump_extcap_interface) - 4] = '\0';
355 | }
356 |
357 | /*
358 | * Get credential information for later use.
359 | */
360 | init_process_policies();
361 |
362 | /*
363 | * Attempt to get the pathname of the directory containing the
364 | * executable file.
365 | */
366 | err_msg = configuration_init(argv[0], "wireshark");
367 | if (err_msg != NULL((void*)0)) {
7 | ← | Assuming 'err_msg' is equal to NULL | →
8 | ← | Taking false branch | →
368 | 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" , 369, __func__, "Can't get pathname of directory containing the extcap program: %s." , err_msg); } } while (0)
369 | err_msg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 369, __func__, "Can't get pathname of directory containing the extcap program: %s." , err_msg); } } while (0);
370 | 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);
371 | }
372 |
373 | help_url = data_file_url("sshdump.html", application_configuration_environment_prefix());
374 | extcap_base_set_util_info(extcap_conf, argv[0], SSHDUMP_VERSION_MAJOR"1", SSHDUMP_VERSION_MINOR"2",
375 | SSHDUMP_VERSION_RELEASE"0", help_url);
376 | 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 | →
377 | add_libssh_info(extcap_conf);
378 | if (g_strcmp0(sshdump_extcap_interface, DEFAULT_SSHDUMP_EXTCAP_INTERFACE"sshdump")) {
11 | ← | Assuming the condition is false | →
12 | ← | Taking false branch | →
379 | char* temp = interface_description;
380 | interface_description = ws_strdup_printf("%s, custom version", interface_description)wmem_strdup_printf(((void*)0), "%s, custom version", interface_description );
381 | g_free(temp)(__builtin_object_size ((temp), 0) != ((size_t) - 1)) ? g_free_sized (temp, __builtin_object_size ((temp), 0)) : (g_free) (temp);
382 | }
383 | extcap_base_register_interface_ext(extcap_conf, sshdump_extcap_interface, interface_description, 147, NULL((void*)0), "Remote capture dependent DLT", EXTCAP_CONTROL_QUIT2);
384 | 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 | →
385 |
386 | 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 )
387 | " %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 )
388 | " %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 )
389 | " %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 )
390 | " %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 )
391 | "--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 )
392 | "--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 )
393 | 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 );
394 | extcap_help_add_header(extcap_conf, help_header);
395 | 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 | →
396 | extcap_help_add_option(extcap_conf, "--help", "print this help");
397 | extcap_help_add_option(extcap_conf, "--version", "print the version");
398 | ssh_base_add_help_options(extcap_conf);
399 | extcap_help_add_option(extcap_conf, "--remote-interface <iface>", "the remote capture interface");
400 | extcap_help_add_option(extcap_conf, "--remote-capture-command-select <selection>", "dumpcap, tcpdump or other remote capture command");
401 | extcap_help_add_option(extcap_conf, "--remote-capture-command <capture command>", "the remote capture command");
402 | //extcap_help_add_option(extcap_conf, "--remote-sudo", "use sudo on the remote machine to capture"); // Deprecated
403 | extcap_help_add_option(extcap_conf, "--remote-priv <selection>", "none, sudo or doas");
404 | extcap_help_add_option(extcap_conf, "--remote-priv-user <username>", "privileged user name");
405 | extcap_help_add_option(extcap_conf, "--remote-noprom", "don't use promiscuous mode on the remote machine");
406 | extcap_help_add_option(extcap_conf, "--remote-filter <filter>", "a filter for remote capture (default: don't listen on local interfaces IPs)");
407 | extcap_help_add_option(extcap_conf, "--remote-count <count>", "the number of packets to capture");
408 |
409 | ws_opterr = 0;
410 | ws_optind = 0;
411 |
412 | if (argc == 1) {
17 | ← | Assuming 'argc' is not equal to 1 | →
18 | ← | Taking false branch | →
413 | extcap_help_print(extcap_conf);
414 | goto end;
415 | }
416 |
417 | // Do this before reading the options, which sets up the control pipe
418 | if (!ssh_base_setup_graceful_shutdown(extcap_conf)) {
19 | ← | Assuming the condition is false | →
20 | ← | Taking false branch | →
419 | ret = EXIT_FAILURE1;
420 | goto end;
421 | }
422 |
423 | 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 544 | →
424 |
425 | switch (result) {
426 |
427 | case OPT_HELP:
428 | extcap_help_print(extcap_conf);
429 | ret = EXIT_SUCCESS0;
430 | goto end;
431 |
432 | case OPT_VERSION:
433 | extcap_version_print(extcap_conf);
434 | ret = EXIT_SUCCESS0;
435 | goto end;
436 |
437 | case OPT_REMOTE_HOST:
438 | 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);
439 | ssh_params->host = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
440 | break;
441 |
442 | case OPT_REMOTE_PORT:
443 | if (!ws_strtou16(ws_optarg, NULL((void*)0), &ssh_params->port) || ssh_params->port == 0) {
444 | ws_warning("Invalid port: %s", ws_optarg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 444, __func__, "Invalid port: %s", ws_optarg); } } while (0 );
445 | goto end;
446 | }
447 | break;
448 |
449 | case OPT_REMOTE_USERNAME:
450 | 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 );
451 | ssh_params->username = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
452 | break;
453 |
454 | case OPT_REMOTE_PASSWORD:
455 | 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 );
456 | ssh_params->password = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
457 | memset(ws_optarg, 'X', strlen(ws_optarg));
458 | break;
459 |
460 | case OPT_SSHKEY:
461 | 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);
462 | ssh_params->sshkey_path = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
463 | break;
464 |
465 | case OPT_SSHKEY_PASSPHRASE:
466 | 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);
467 | ssh_params->sshkey_passphrase = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
468 | memset(ws_optarg, 'X', strlen(ws_optarg));
469 | break;
470 |
471 | case OPT_PROXYCOMMAND:
472 | 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);
473 | ssh_params->proxycommand = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
474 | break;
475 |
476 | case OPT_SSH_SHA1:
477 | ssh_params->ssh_sha1 = true1;
478 | break;
479 |
480 | case OPT_UPDATE_KNOWN_HOSTS:
481 | ssh_params->update_known_hosts = true1;
482 | break;
483 |
484 | case OPT_REMOTE_INTERFACE:
485 | 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);
486 | remote_interface = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
487 | break;
488 |
489 | case OPT_REMOTE_CAPTURE_COMMAND_SELECT:
490 | 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);
491 | remote_capture_command_select = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
492 | break;
493 |
494 | case OPT_REMOTE_CAPTURE_COMMAND:
495 | 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 );
496 | remote_capture_command = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
497 | break;
498 |
499 | case OPT_REMOTE_SUDO:
500 | // Deprecated
501 | g_free(priv)(__builtin_object_size ((priv), 0) != ((size_t) - 1)) ? g_free_sized (priv, __builtin_object_size ((priv), 0)) : (g_free) (priv);
502 | priv = g_strdup("sudo")g_strdup_inline ("sudo");
503 | break;
504 |
505 | case OPT_REMOTE_PRIV:
506 | g_free(priv)(__builtin_object_size ((priv), 0) != ((size_t) - 1)) ? g_free_sized (priv, __builtin_object_size ((priv), 0)) : (g_free) (priv);
507 | priv = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
508 | break;
509 |
510 | case OPT_REMOTE_PRIV_USER:
511 | 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);
512 | priv_user = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
513 | break;
514 |
515 | case OPT_REMOTE_FILTER:
516 | 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);
517 | remote_filter = g_strdup(ws_optarg)g_strdup_inline (ws_optarg);
518 | break;
519 |
520 | case OPT_REMOTE_COUNT:
521 | if (!ws_strtou32(ws_optarg, NULL((void*)0), &count)) {
522 | ws_warning("Invalid value for count: %s", ws_optarg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 522, __func__, "Invalid value for count: %s", ws_optarg); } } while (0);
523 | goto end;
524 | }
525 | break;
526 |
527 | case OPT_REMOTE_NOPROM:
528 | noprom = true1;
529 | break;
530 |
531 | case ':':
532 | /* missing option argument */
533 | ws_warning("Option '%s' requires an argument", argv[ws_optind - 1])do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 533, __func__, "Option '%s' requires an argument", argv[ws_optind - 1]); } } while (0);
534 | break;
535 |
536 | default:
537 | if (!extcap_base_parse_options(extcap_conf, result - EXTCAP_OPT_LIST_INTERFACES, ws_optarg)) {
538 | ws_warning("Invalid option: %s", argv[ws_optind - 1])do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 538, __func__, "Invalid option: %s", argv[ws_optind - 1]); } } while (0);
539 | goto end;
540 | }
541 | }
542 | }
543 |
544 | extcap_cmdline_debug(argv, argc);
545 |
546 | if (extcap_base_handle_interface(extcap_conf)) {
23 | ← | Assuming the condition is false | →
24 | ← | Taking false branch | →
547 | ret = EXIT_SUCCESS0;
548 | goto end;
549 | }
550 |
551 | if (extcap_conf->show_config) {
25 | ← | Assuming field 'show_config' is 0 | →
26 | ← | Taking false branch | →
552 | ret = list_config(extcap_conf->interface, ssh_params->port);
553 | goto end;
554 | }
555 |
556 | err_msg = ws_init_sockets();
557 | if (err_msg != NULL((void*)0)) {
27 | ← | Assuming 'err_msg' is equal to NULL | →
28 | ← | Taking false branch | →
558 | ws_warning("ERROR: %s", err_msg)do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 558, __func__, "ERROR: %s", err_msg); } } while (0);
559 | 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);
560 | ws_warning("%s", please_report_bug())do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 560, __func__, "%s", please_report_bug()); } } while (0);
561 | goto end;
562 | }
563 |
564 | if (extcap_conf->capture) {
29 | ← | Assuming field 'capture' is not equal to 0 | →
30 | ← | Taking true branch | →
565 | char* filter;
566 | char* privilege;
567 |
568 | if (!ssh_params->host) {
31 | ← | Assuming field 'host' is non-null | →
569 | ws_warning("Missing parameter: --remote-host")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_WARNING, "extcap/sshdump.c" , 569, __func__, "Missing parameter: --remote-host"); } } while (0);
570 | goto end;
571 | }
572 |
573 | if ((priv
31.1 | 'priv' is null
) && g_strcmp0(priv, "none") && strlen(g_strstrip(priv)g_strchomp (g_strchug (priv)))) {
574 | if ((priv_user) && strlen(g_strstrip(priv_user)g_strchomp (g_strchug (priv_user))))
575 | /* Both sudo and doas use the same command line option */
576 | privilege = g_strconcat(priv, " -u ", priv_user, NULL((void*)0));
577 | else
578 | privilege = g_strdup(priv)g_strdup_inline (priv);
579 | } else {
580 | privilege = g_strdup("")g_strdup_inline ("");
581 | }
582 |
583 | // This may result in the use of a different port number than was given in
584 | // the default filter string, as presented in the config dialog. The default
585 | // given is always using the default SSH port since there's no remote SSH port
586 | // given on the command line to get the extcap arguments.
587 | // However the remote SSH port used here is the one given on the command line
588 | // when the capture us started, which is the intended one.
589 | // And this is only happening when no remote filter is specified on the command
590 | // line to start the capture.
591 | if (remote_filter
31.2 | 'remote_filter' is equal to NULL
== NULL((void*)0))
32 | ← | Taking true branch | →
592 | remote_filter = local_interfaces_to_filter(ssh_params->port);
593 | filter = concat_filters(extcap_conf->capture_filter, remote_filter);
594 | ssh_params_set_log_level(ssh_params, extcap_conf->debug);
595 | ret = ssh_open_remote_connection(ssh_params, remote_interface,
33 | ← | Calling 'ssh_open_remote_connection' | →
596 | filter, remote_capture_command_select, remote_capture_command,
597 | privilege, noprom, count, extcap_conf->fifo);
598 | g_free(filter)(__builtin_object_size ((filter), 0) != ((size_t) - 1)) ? g_free_sized (filter, __builtin_object_size ((filter), 0)) : (g_free) (filter );
599 | g_free(privilege)(__builtin_object_size ((privilege), 0) != ((size_t) - 1)) ? g_free_sized (privilege, __builtin_object_size ((privilege), 0)) : (g_free ) (privilege);
600 | } else {
601 | ws_debug("You should not come here... maybe some parameter missing?")do { if (1) { ws_log_full("sshdump", LOG_LEVEL_DEBUG, "extcap/sshdump.c" , 601, __func__, "You should not come here... maybe some parameter missing?" ); } } while (0);
602 | ret = EXIT_FAILURE1;
603 | }
604 |
605 | end:
606 | /* clean up stuff */
607 | ssh_params_free(ssh_params);
608 | 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);
609 | 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 );
610 | 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);
611 | 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);
612 | g_free(priv)(__builtin_object_size ((priv), 0) != ((size_t) - 1)) ? g_free_sized (priv, __builtin_object_size ((priv), 0)) : (g_free) (priv);
613 | 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);
614 | extcap_base_cleanup(&extcap_conf);
615 | return ret;
616 | }
617 |
618 | /*
619 | * Editor modelines - https://www.wireshark.org/tools/modelines.html
620 | *
621 | * Local variables:
622 | * c-basic-offset: 8
623 | * tab-width: 8
624 | * indent-tabs-mode: t
625 | * End:
626 | *
627 | * vi: set shiftwidth=8 tabstop=8 noexpandtab:
628 | * :indentSize=8:tabSize=8:noTabs=false:
629 | */