GNUnet 0.21.0
testing_api_cmd_netjail_stop.c
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1/*
2 This file is part of GNUnet
3 Copyright (C) 2021 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
26#include "platform.h"
27#include "gnunet_util_lib.h"
32
33
34#define NETJAIL_STOP_SCRIPT "netjail_stop.sh"
35
40struct NetJailState
41{
46
47 // Child Wait handle
49
53 char *topology_config;
54
59
63 unsigned int *read_file;
64
65};
66
67
72static void
74{
75 struct NetJailState *ns = cls;
76
77 if (NULL != ns->cwh)
78 {
80 ns->cwh = NULL;
81 }
82 if (NULL != ns->stop_proc)
83 {
84 GNUNET_assert (0 ==
85 GNUNET_OS_process_kill (ns->stop_proc,
86 SIGKILL));
88 GNUNET_OS_process_wait (ns->stop_proc));
89 GNUNET_OS_process_destroy (ns->stop_proc);
90 ns->stop_proc = NULL;
91 }
93}
94
95
100static void
103 long unsigned int exit_code)
104{
105 struct NetJailState *ns = cls;
106
107 ns->cwh = NULL;
108 GNUNET_OS_process_destroy (ns->stop_proc);
109 ns->stop_proc = NULL;
110 if (0 == exit_code)
111 {
113 }
114 else
115 {
117 }
118}
119
120
127static void
130{
131 struct NetJailState *ns = cls;
132 char *pid;
133 char *data_dir;
134 char *script_name;
135 char *read_file;
136
137
139 GNUNET_asprintf (&script_name, "%s%s", data_dir, NETJAIL_STOP_SCRIPT);
140 GNUNET_asprintf (&read_file, "%u", *(ns->read_file));
141 unsigned int helper_check = GNUNET_OS_check_helper_binary (
142 script_name,
144 NULL);
145
146 if (GNUNET_NO == helper_check)
147 {
149 "No SUID for %s!\n",
150 script_name);
152 }
153 else if (GNUNET_NO == helper_check)
154 {
156 "%s not found!\n",
157 script_name);
159 }
160
162 "%u",
163 getpid ());
164 {
165 char *const script_argv[] = {script_name,
166 ns->topology_config,
167 pid,
168 read_file,
169 NULL};
171 NULL,
172 NULL,
173 NULL,
174 script_name,
175 script_argv);
176 }
177 ns->cwh = GNUNET_wait_child (ns->stop_proc,
179 ns);
180 GNUNET_break (NULL != ns->cwh);
183}
184
185
188 char *topology_config,
189 unsigned int *read_file)
190{
191 struct NetJailState *ns;
192
193 ns = GNUNET_new (struct NetJailState);
194 ns->topology_config = topology_config;
195 ns->read_file = read_file;
196 return GNUNET_TESTING_command_new (ns, label,
199 NULL, &ns->ac);
200}
struct GNUNET_TESTING_Interpreter * is
static struct GNUNET_NAMECACHE_Handle * ns
Handle to the namecache.
static uint32_t type
Type string converted to DNS type value.
static int exit_code
Global exit code.
Definition: gnunet-qr.c:43
static struct GNUNET_PeerIdentity pid
Identity of the peer we transmit to / connect to.
API to manage barriers.
void GNUNET_TESTING_async_finish(struct GNUNET_TESTING_AsyncContext *ac)
The asynchronous command of ac has finished.
void GNUNET_TESTING_async_fail(struct GNUNET_TESTING_AsyncContext *ac)
The asynchronous command of ac has failed.
struct GNUNET_TESTING_Command GNUNET_TESTING_command_new(void *cls, const char *label, GNUNET_TESTING_CommandRunRoutine run, GNUNET_TESTING_CommandCleanupRoutine cleanup, GNUNET_TESTING_CommandGetTraits traits, struct GNUNET_TESTING_AsyncContext *ac)
Create a new command.
void GNUNET_TESTING_interpreter_fail(struct GNUNET_TESTING_Interpreter *is)
Current command failed, clean up and fail the test case.
#define GNUNET_log(kind,...)
void GNUNET_wait_child_cancel(struct GNUNET_ChildWaitHandle *cwh)
Stop waiting on this child.
struct GNUNET_ChildWaitHandle * GNUNET_wait_child(struct GNUNET_OS_Process *proc, GNUNET_ChildCompletedCallback cb, void *cb_cls)
Starts the handling of the child processes.
@ GNUNET_OK
@ GNUNET_YES
@ GNUNET_NO
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
@ GNUNET_ERROR_TYPE_ERROR
int int GNUNET_asprintf(char **buf, const char *format,...) __attribute__((format(printf
Like asprintf, just portable.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
#define GNUNET_free(ptr)
Wrapper around free.
char * GNUNET_OS_installation_get_path(enum GNUNET_OS_InstallationPathKind dirkind)
Get the path to a specific GNUnet installation directory or, with GNUNET_OS_IPK_SELF_PREFIX,...
GNUNET_OS_ProcessStatusType
Process status types.
void GNUNET_OS_process_destroy(struct GNUNET_OS_Process *proc)
Cleans up process structure contents (OS-dependent) and deallocates it.
Definition: os_priority.c:260
enum GNUNET_GenericReturnValue GNUNET_OS_check_helper_binary(const char *binary, bool check_suid, const char *params)
Check whether an executable exists and possibly if the suid bit is set on the file.
int GNUNET_OS_process_kill(struct GNUNET_OS_Process *proc, int sig)
Sends a signal to the process.
Definition: os_priority.c:210
enum GNUNET_GenericReturnValue GNUNET_OS_process_wait(struct GNUNET_OS_Process *proc)
Wait for a process to terminate.
Definition: os_priority.c:877
struct GNUNET_OS_Process * GNUNET_OS_start_process_vap(enum GNUNET_OS_InheritStdioFlags std_inheritance, struct GNUNET_DISK_PipeHandle *pipe_stdin, struct GNUNET_DISK_PipeHandle *pipe_stdout, struct GNUNET_DISK_PipeHandle *pipe_stderr, const char *filename, char *const argv[])
Start a process.
Definition: os_priority.c:573
@ GNUNET_OS_INHERIT_STD_ERR
When this flag is set, the child process will inherit stderr of the parent.
Definition: gnunet_os_lib.h:95
@ GNUNET_OS_IPK_DATADIR
Return the directory where data is installed (share/gnunet/)
enum GNUNET_GenericReturnValue read_file(char const *const filename, char **buffer)
Definition: pabc_helper.c:71
Struct which defines a Child Wait handle.
State each asynchronous command must have in its closure.
A command to be run by the interpreter.
struct GNUNET_TESTING_CommandLabel label
Label for the command.
Global state of the interpreter, used by a command to access information about other commands.
Struct to hold information for callbacks.
struct GNUNET_OS_Process * stop_proc
The process id of the start script.
struct GNUNET_ChildWaitHandle * cwh
unsigned int * read_file
Shall we read the topology from file, or from a string.
char * topology_config
Configuration file for the test topology.
struct GNUNET_TESTING_AsyncContext ac
Context for our asynchronous completion.
static void child_completed_callback(void *cls, enum GNUNET_OS_ProcessStatusType type, long unsigned int exit_code)
Callback which will be called if the setup script finished.
#define NETJAIL_STOP_SCRIPT
struct GNUNET_TESTING_Command GNUNET_TESTING_cmd_netjail_stop(const char *label, char *topology_config, unsigned int *read_file)
This command executes a shell script to remove the netjail environment.
static void netjail_stop_cleanup(void *cls)
The cleanup function of this cmd frees resources the cmd allocated.
static void netjail_stop_run(void *cls, struct GNUNET_TESTING_Interpreter *is)
The run method starts the script which deletes the network namespaces.