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snmp4lptp: Added communication to ptp4l via the UDS port. 

UDS transport is configured using pmc_common functions.

Signed-off-by: Anders Selhammer <anders.selhammer@est.tech>
master
Anders Selhammer 2018-08-21 10:53:09 +02:00 committed by Richard Cochran
parent b2f2c9e02d
commit 68dcd10673
2 changed files with 102 additions and 3 deletions
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3
makefile
View File

@ -68,7 +68,8 @@ hwstamp_ctl: hwstamp_ctl.o version.o
phc_ctl: phc_ctl.o phc.o sk.o util.o clockadj.o sysoff.o print.o version.o
snmp4lptp: print.o sk.o snmp4lptp.o util.o
snmp4lptp: config.o hash.o msg.o pmc_common.o print.o raw.o sk.o \
snmp4lptp.o tlv.o transport.o udp.o udp6.o uds.o util.o
$(CC) $^ $(LDFLAGS) $(LOADLIBES) $(LDLIBS) $(snmplib) -o $@
snmp4lptp.o: snmp4lptp.c

102
snmp4lptp.c
View File

@ -21,8 +21,26 @@
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "config.h"
#include "pmc_common.h"
#include "print.h"
#include "util.h"
static struct pmc *pmc;
static int open_pmc(struct config *cfg)
{
char uds_local[MAX_IFNAME_SIZE + 1];
snprintf(uds_local, sizeof(uds_local), "/var/run/snmp4lptp.%d", getpid());
pmc = pmc_create(cfg, TRANS_UDS, uds_local, 0,
config_get_int(cfg, NULL, "domainNumber"),
config_get_int(cfg, NULL, "transportSpecific") << 4,
1);
return pmc ? 0 : -1;
}
static int open_snmp()
{
snmp_enable_calllog();
@ -35,23 +53,103 @@ static int open_snmp()
return 0;
}
static void usage(char *progname)
{
fprintf(stderr,
"\nusage: %s [options]\n\n"
" -f [file] read configuration from 'file'\n"
" -h prints this message and exits\n"
" -m print messages to stdout\n"
" -q do not print messages to the syslog\n"
"\n",
progname);
}
int main(int argc, char *argv[])
{
int err = 0;
char *config = NULL, *progname;
int c, err = 0, index;
struct option *opts;
struct config *cfg;
if (handle_term_signals()) {
return -1;
}
if (open_snmp()) {
cfg = config_create();
if (!cfg) {
return -1;
}
opts = config_long_options(cfg);
print_set_verbose(1);
print_set_syslog(0);
/* Process the command line arguments. */
progname = strrchr(argv[0], '/');
progname = progname ? 1+progname : argv[0];
while (EOF != (c = getopt_long(argc, argv, "f:hmq", opts, &index))) {
switch (c) {
case 0:
if (config_parse_option(cfg, opts[index].name, optarg)) {
config_destroy(cfg);
return -1;
}
break;
case 'f':
config = optarg;
break;
case 'h':
usage(progname);
err = -1;
goto out;
case 'm':
config_set_int(cfg, "verbose", 1);
break;
case 'q':
config_set_int(cfg, "use_syslog", 0);
break;
case '?':
default:
usage(progname);
err = -1;
goto out;
}
}
if (config && (err = config_read(config, cfg))) {
err = -1;
goto out;
}
print_set_progname(progname);
print_set_tag(config_get_string(cfg, NULL, "message_tag"));
print_set_verbose(config_get_int(cfg, NULL, "verbose"));
print_set_syslog(config_get_int(cfg, NULL, "use_syslog"));
print_set_level(config_get_int(cfg, NULL, "logging_level"));
if (open_pmc(cfg)) {
err = -1;
goto pmc_out;
}
if (open_snmp()) {
err = -1;
goto snmp_out;
}
while (is_running()) {
agent_check_and_process(1);
}
snmp_shutdown("linuxptpAgent");
snmp_out:
pmc_destroy(pmc);
msg_cleanup();
pmc_out:
out:
config_destroy(cfg);
return err;
}