osmo_pcap_client: Start with the framework for the pcap client

This is just the normal skeleton for the osmocom code.
This commit is contained in:
Holger Hans Peter Freyther 2011-05-31 15:47:44 +02:00
parent 430366a2c5
commit 530ecc0879
9 changed files with 370 additions and 3 deletions

5
.gitignore vendored
View File

@ -17,8 +17,13 @@ install-sh
missing
stamp-h1
osmopcapconfig.h*
# git-version-gen magic
.tarball-version
.version
# apps
src/osmo_pcap_client

View File

@ -50,6 +50,7 @@ if test "$enable_coverage" = "yes"; then
AC_SUBST([COVERAGE_LDFLAGS])
fi
AM_CONFIG_HEADER(osmopcapconfig.h)
dnl Generate the output
AC_OUTPUT(

View File

@ -1 +1 @@
noinst_HEADERS =
noinst_HEADERS = common.h

View File

@ -0,0 +1,50 @@
/*
* osmo-pcap common
*
* (C) 2011 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2011 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef OSMO_PCAP_COMMON_H
#define OSMO_PCAP_COMMON_H
#include <osmocom/core/logging.h>
#include <osmocom/vty/vty.h>
#include <osmocom/vty/buffer.h>
#include <osmocom/vty/command.h>
enum {
DPCAP,
DCLIENT,
DSERVER,
DVTY,
Debug_LastEntry,
};
enum {
CLIENT_NODE = _LAST_OSMOVTY_NODE + 1,
SERVER_NODE,
};
extern const struct log_info log_info;
extern const char *osmopcap_copyright;
extern enum node_type osmopcap_go_parent(struct vty *vty);
extern int osmopcap_is_config_node(struct vty *vty, int node);
#endif

View File

@ -0,0 +1,34 @@
/*
* osmo-pcap-client code
*
* (C) 2011 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2011 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <pcap.h>
struct osmo_pcap_client {
char *device;
pcap_t *handle;
struct bpf_program *bpf;
char *filter_string;
};
int vty_client_init();

View File

@ -1,8 +1,8 @@
INCLUDES = $(all_includes) -I$(top_srcdir)/include
INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)/
AM_CFLAGS = -Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(PCAP_CFLAGS)
AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(LIBOSMOVTY_LIBS)
bin_PROGRAMS = osmo_pcap_client
osmo_pcap_client_SOURCES = osmo_client_main.c
osmo_pcap_client_SOURCES = osmo_client_main.c osmo_common.c
osmo_pcap_client_LDADD = $(PCAP_LIBS)

View File

@ -20,10 +20,174 @@
*
*/
#include <osmo-pcap/common.h>
#include <osmocom/core/application.h>
#include <osmocom/core/process.h>
#include <osmocom/core/rate_ctr.h>
#include <osmocom/core/select.h>
#include <osmocom/core/talloc.h>
#include <osmocom/vty/logging.h>
#include <osmocom/vty/telnet_interface.h>
#include <pcap.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#define _GNU_SOURCE
#include <getopt.h>
#include "osmopcapconfig.h"
static const char *config_file = "osmo-pcap-client.cfg";
static int daemonize = 0;
void *tall_bsc_ctx;
extern void *tall_msgb_ctx;
extern void *tall_ctr_ctx;
static struct vty_app_info vty_info = {
.name = "OsmoPCAPClient",
.version = PACKAGE_VERSION,
.go_parent_cb = osmopcap_go_parent,
.is_config_node = osmopcap_is_config_node,
};
static void print_usage()
{
printf("Usage: osmo_pcap_client\n");
}
static void print_help()
{
printf(" Some useful help...\n");
printf(" -h --help this text\n");
printf(" -D --daemonize Fork the process into a background daemon\n");
printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM enable debugging\n");
printf(" -s --disable-color\n");
printf(" -T --timestamp. Print a timestamp in the debug output.\n");
printf(" -e --log-level number. Set a global loglevel.\n");
printf(" -c --config-file filename The config file to use.\n");
}
static void handle_options(int argc, char **argv)
{
while (1) {
int option_index = 0, c;
static struct option long_options[] = {
{"help", 0, 0, 'h'},
{"daemonize", 0, 0, 'D'},
{"debug", 1, 0, 'd'},
{"disable-color", 0, 0, 's'},
{"timestamp", 0, 0, 'T'},
{"log-level", 1, 0, 'e'},
{"config-file", 1, 0, 'c'},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hd:DsTc:e:",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'h':
print_usage();
print_help();
exit(0);
case 'D':
daemonize = 1;
break;
case 'd':
log_parse_category_mask(osmo_stderr_target, optarg);
break;
case 's':
log_set_use_color(osmo_stderr_target, 0);
break;
case 'T':
log_set_print_timestamp(osmo_stderr_target, 1);
break;
case 'e':
log_set_log_level(osmo_stderr_target, atoi(optarg));
break;
case 'c':
config_file = strdup(optarg);
break;
default:
/* ignore */
break;
}
}
}
static void signal_handler(int signal)
{
fprintf(stdout, "signal %u received\n", signal);
switch (signal) {
case SIGINT:
exit(0);
break;
case SIGABRT:
/* in case of abort, we want to obtain a talloc report
* and then return to the caller, who will abort the process */
case SIGUSR1:
talloc_report(tall_vty_ctx, stderr);
talloc_report_full(tall_bsc_ctx, stderr);
break;
default:
break;
}
}
static void talloc_init_ctx()
{
tall_bsc_ctx = talloc_named_const(NULL, 0, "nat");
tall_msgb_ctx = talloc_named_const(tall_bsc_ctx, 0, "msgb");
tall_ctr_ctx = talloc_named_const(tall_bsc_ctx, 0, "counter");
}
int main(int argc, char **argv)
{
int rc;
talloc_init_ctx();
osmo_init_logging(&log_info);
vty_info.copyright = osmopcap_copyright;
vty_init(&vty_info);
logging_vty_add_cmds(&log_info);
/* parse options */
handle_options(argc, argv);
rate_ctr_init(tall_bsc_ctx);
/* seed the PRNG */
srand(time(NULL));
signal(SIGINT, &signal_handler);
signal(SIGABRT, &signal_handler);
signal(SIGUSR1, &signal_handler);
osmo_init_ignore_signals();
telnet_init(tall_bsc_ctx, NULL, 4240);
if (daemonize) {
rc = osmo_daemonize();
if (rc < 0) {
perror("Error during daemonize");
exit(1);
}
}
while (1) {
osmo_select_main(0);
}
return(0);
}

23
src/osmo_client_vty.c Normal file
View File

@ -0,0 +1,23 @@
/*
* osmo-pcap-client code
*
* (C) 2011 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2011 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <osmo-pcap/osmo_pcap_client.h>

90
src/osmo_common.c Normal file
View File

@ -0,0 +1,90 @@
/*
* osmo-pcap common code
*
* (C) 2011 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2011 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <osmo-pcap/common.h>
#include <osmocom/core/utils.h>
static const struct log_info_cat default_categories[] = {
[DPCAP] = {
.name = "DPCAP",
.description = "PCAP related functionality",
.color = "\033[1;31m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DCLIENT] = {
.name = "DCLIENT",
.description = "Client related functionality",
.color = "\033[1;32m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DSERVER] = {
.name = "DSERVER",
.description = "Server related functionality",
.color = "\033[1;33m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DVTY] = {
.name = "DVTY",
.description = "VTY code",
.color = "\033[1;34m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
};
const struct log_info log_info = {
.cat = default_categories,
.num_cat = ARRAY_SIZE(default_categories),
};
const char *osmopcap_copyright =
"Copyright (C) 2011 Holger Freyther\r\n"
"License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n"
"This is free software: you are free to change and redistribute it.\r\n"
"There is NO WARRANTY, to the extent permitted by law.\r\n";
enum node_type osmopcap_go_parent(struct vty *vty)
{
switch (vty->node) {
case CLIENT_NODE:
case SERVER_NODE:
vty->node = CONFIG_NODE;
vty->index = NULL;
break;
default:
LOGP(DVTY, LOGL_ERROR, "Unhandled node %d\n", vty->node);
break;
}
return vty->node;
}
int osmopcap_is_config_node(struct vty *vty, int node)
{
switch (node) {
case CONFIG_NODE:
return 0;
default:
return 1;
}
}