diff options
Diffstat (limited to 'utils/gsmtap-logsend.c')
| -rw-r--r-- | utils/gsmtap-logsend.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/utils/gsmtap-logsend.c b/utils/gsmtap-logsend.c new file mode 100644 index 00000000..97a838b5 --- /dev/null +++ b/utils/gsmtap-logsend.c @@ -0,0 +1,139 @@ +/* Small program to read an input file / stdin and send each line via GSMTAP logging */ +/* (C) 2023 by Harald Welte <laforge@osmocom.org> + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + */ + +#include <stdio.h> +#include <errno.h> +#include <sys/uio.h> +#include <getopt.h> + +#include <osmocom/core/byteswap.h> +#include <osmocom/core/logging.h> +#include <osmocom/core/timer.h> +#include <osmocom/core/gsmtap.h> +#include <osmocom/core/gsmtap_util.h> + +static char *proc_name = "gsmtap-logsend"; +static char *subsys_name = "unknown"; +static char *dest_host = "localhost"; +static int dest_port = GSMTAP_UDP_PORT; + +static void help(void) +{ + printf("osmo-gsmtap-logsend Usage:\n" + "\t[ -r DESTADDR ] [ -p PORTNR ] [ -n PROC_NAME ] [ -s SUBSYS ] [ INFILE ]\n" + "\n" + " -a --remote-address HOSTNAME Destination IP destination address (default: localhost)\n" + " -p --remote-port PORTNR Destination UDP Port number (default: 4729)\n" + " -n --process-name PROC_NAME Process name to include in GSMTAP LOG header\n" + " -s --subsys-name SUBSYS Subsystem name to include in GSMTAP LOG header\n" + " -h --help This help message\n" + ); +} + +int main(int argc, char **argv) +{ + char buf[1024]; + int gsmtap_fd; + FILE *infile; + char *line; + int rc; + + while (1) { + static const struct option long_options[] = { + { "remote-address", 1, 0, 'a' }, + { "remote-port", 1, 0, 'p' }, + { "process-name", 1, 0, 'n' }, + { "subsys-name", 1, 0, 's' }, + { "help", 0, 0, 'h' }, + { 0, 0, 0, 0 } + }; + int c, option_index; + + c = getopt_long(argc, argv, "a:p:n:s:h", long_options, &option_index); + if (c == -1) + break; + + switch (c) { + case 'a': + dest_host = optarg; + break; + case 'p': + dest_port = atoi(optarg); + break; + case 'n': + proc_name = optarg; + break; + case 's': + subsys_name = optarg; + break; + case 'h': + help(); + exit(0); + break; + default: + help(); + exit(1); + } + } + + if (argc <= optind) { + infile = stdin; + } else { + infile = fopen(argv[optind], "r"); + if (!infile) { + fprintf(stderr, "Unable to open %s: %s\n", argv[optind], strerror(errno)); + exit(2); + } + } + + gsmtap_fd = gsmtap_source_init_fd(dest_host, dest_port); + if (gsmtap_fd < 0) { + fprintf(stderr, "Unable to create GSMTAP soicket: %s\n", strerror(errno)); + exit(2); + } + + /* prepare all the data structures that don't change for each line */ + struct { + struct gsmtap_hdr gsmtap; + struct gsmtap_osmocore_log_hdr log; + } __attribute__ ((packed)) hdr; + struct timeval tv; + + memset(&hdr, 0, sizeof(hdr)); + hdr.gsmtap.version = GSMTAP_VERSION; + hdr.gsmtap.hdr_len = sizeof(hdr.gsmtap)/4; + hdr.gsmtap.type = GSMTAP_TYPE_OSMOCORE_LOG; + + OSMO_STRLCPY_ARRAY(hdr.log.proc_name, proc_name); + OSMO_STRLCPY_ARRAY(hdr.log.subsys, subsys_name); + hdr.log.level = LOGL_INFO; + + while ((line = fgets(buf, sizeof(buf), infile))) { + struct iovec iov[2] = { + { .iov_base = &hdr, .iov_len = sizeof(hdr) }, + { .iov_base = buf, .iov_len = strlen(line) + 1 }, + }; + osmo_gettimeofday(&tv, NULL); + hdr.log.ts.sec = osmo_htonl(tv.tv_sec); + hdr.log.ts.usec = osmo_htonl(tv.tv_usec); + + rc = writev(gsmtap_fd, iov, ARRAY_SIZE(iov)); + if (rc <= 0) { + fprintf(stderr, "Short write on GSMTAP socket: %d (%s)\n", rc, strerror(errno)); + exit(1); + } + } +} |