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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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monitor: add --time-format,-t option
For syncing iwmon captures with other logging its useful to
timestamp in some absolute format like UTC. This adds an
option which allows the user to specify what time format to
show. For now support:
delta - (default) The time delta between the first packet
and the current packet.
utc - The packet time in UTC
This commit is contained in:
James Prestwood
Denis Kenzior
parent
d4bba5c838
commit
c352b35bf1
@ -718,29 +718,32 @@ static void usage(void)
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"Usage:\n");
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printf("\tiwmon [options]\n");
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printf("Options:\n"
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"\t-r, --read <file> Read netlink PCAP trace file\n"
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"\t-w, --write <file> Write netlink PCAP trace file\n"
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"\t-a, --analyze <file> Analyze netlink PCAP trace file\n"
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"\t-i, --interface <dev> Use specified netlink monitor\n"
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"\t-n, --nortnl Don't show RTNL output\n"
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"\t-y, --nowiphy Don't show 'New Wiphy' output\n"
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"\t-s, --noscan Don't show scan result output\n"
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"\t-e, --noies Don't show IEs except SSID\n"
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"\t-h, --help Show help options\n");
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"\t-r, --read <file> Read netlink PCAP trace file\n"
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"\t-w, --write <file> Write netlink PCAP trace file\n"
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"\t-a, --analyze <file> Analyze netlink PCAP trace file\n"
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"\t-i, --interface <dev> Use specified netlink monitor\n"
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"\t-n, --nortnl Don't show RTNL output\n"
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"\t-y, --nowiphy Don't show 'New Wiphy' output\n"
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"\t-s, --noscan Don't show scan result output\n"
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"\t-e, --noies Don't show IEs except SSID\n"
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"\t-t, --time-format <format> Time format to display. Either\n"
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"\t\t\t\t 'delta' or 'utc'.\n"
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"\t-h, --help Show help options\n");
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}
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static const struct option main_options[] = {
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{ "read", required_argument, NULL, 'r' },
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{ "write", required_argument, NULL, 'w' },
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{ "analyze", required_argument, NULL, 'a' },
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{ "nl80211", required_argument, NULL, 'F' },
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{ "interface", required_argument, NULL, 'i' },
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{ "nortnl", no_argument, NULL, 'n' },
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{ "nowiphy", no_argument, NULL, 'y' },
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{ "noscan", no_argument, NULL, 's' },
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{ "noies", no_argument, NULL, 'e' },
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{ "version", no_argument, NULL, 'v' },
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{ "help", no_argument, NULL, 'h' },
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{ "read", required_argument, NULL, 'r' },
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{ "write", required_argument, NULL, 'w' },
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{ "analyze", required_argument, NULL, 'a' },
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{ "nl80211", required_argument, NULL, 'F' },
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{ "interface", required_argument, NULL, 'i' },
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{ "nortnl", no_argument, NULL, 'n' },
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{ "nowiphy", no_argument, NULL, 'y' },
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{ "noscan", no_argument, NULL, 's' },
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{ "noies", no_argument, NULL, 'e' },
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{ "time-format", required_argument, NULL, 't' },
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{ "version", no_argument, NULL, 'v' },
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{ "help", no_argument, NULL, 'h' },
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{ }
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};
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@ -754,7 +757,7 @@ int main(int argc, char *argv[])
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for (;;) {
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int opt;
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opt = getopt_long(argc, argv, "r:w:a:i:nvhyse",
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opt = getopt_long(argc, argv, "r:w:a:i:t:nvhyse",
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main_options, NULL);
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if (opt < 0)
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break;
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@ -784,6 +787,17 @@ int main(int argc, char *argv[])
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break;
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case 'e':
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config.noies = true;
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break;
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case 't':
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if (!strcmp(optarg, "delta"))
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config.time_format = TIME_FORMAT_DELTA;
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else if (!strcmp(optarg, "utc"))
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config.time_format = TIME_FORMAT_UTC;
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else {
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printf("Invalid time format '%s'", optarg);
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return EXIT_FAILURE;
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}
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break;
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case 'v':
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printf("%s\n", VERSION);
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@ -29,6 +29,7 @@
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#include <errno.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <time.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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@ -113,6 +114,7 @@ struct nlmon {
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bool noscan;
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bool noies;
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bool read;
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enum time_format time_format;
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};
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struct nlmon_req {
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@ -185,11 +187,15 @@ static void nlmon_req_free(void *data)
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}
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static time_t time_offset = ((time_t) -1);
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static enum time_format time_format;
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static inline void update_time_offset(const struct timeval *tv)
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static inline void update_time_offset(const struct timeval *tv,
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enum time_format tf)
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{
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if (tv && time_offset == ((time_t) -1))
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if (tv && time_offset == ((time_t) -1)) {
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time_offset = tv->tv_sec;
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time_format = tf;
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}
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}
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#define print_indent(indent, color1, prefix, title, color2, fmt, args...) \
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@ -225,15 +231,38 @@ static void print_packet(const struct timeval *tv, char ident,
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int n, ts_len = 0, ts_pos = 0, len = 0, pos = 0;
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if (tv) {
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struct tm *tm;
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if (use_color()) {
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n = sprintf(ts_str + ts_pos, "%s", COLOR_TIMESTAMP);
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if (n > 0)
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ts_pos += n;
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}
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n = sprintf(ts_str + ts_pos, " %" PRId64 ".%06" PRId64,
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switch (time_format) {
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case TIME_FORMAT_DELTA:
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n = sprintf(ts_str + ts_pos, " %" PRId64 ".%06" PRId64,
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(int64_t)tv->tv_sec - time_offset,
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(int64_t)tv->tv_usec);
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break;
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case TIME_FORMAT_UTC:
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tm = gmtime(&tv->tv_sec);
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if (!tm) {
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n = sprintf(ts_str + ts_pos, "%s",
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"Time error");
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break;
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}
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n = strftime(ts_str + ts_pos, sizeof(ts_str) - ts_pos,
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"%b %d %H:%M:%S", tm);
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break;
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default:
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/* Should never happen */
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printf("Unknown time format");
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l_main_quit();
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return;
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}
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if (n > 0) {
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ts_pos += n;
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ts_len += n;
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@ -7497,6 +7526,7 @@ struct nlmon *nlmon_create(uint16_t id, const struct nlmon_config *config)
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nlmon->noscan = config->noscan;
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nlmon->noies = config->noies;
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nlmon->read = config->read_only;
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nlmon->time_format = config->time_format;
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return nlmon;
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}
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@ -8333,7 +8363,10 @@ void nlmon_print_rtnl(struct nlmon *nlmon, const struct timeval *tv,
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int64_t aligned_size = NLMSG_ALIGN(size);
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const struct nlmsghdr *nlmsg;
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update_time_offset(tv);
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if (nlmon->nortnl)
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return;
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update_time_offset(tv, nlmon->time_format);
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for (nlmsg = data; NLMSG_OK(nlmsg, aligned_size);
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nlmsg = NLMSG_NEXT(nlmsg, aligned_size)) {
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@ -8371,7 +8404,7 @@ void nlmon_print_genl(struct nlmon *nlmon, const struct timeval *tv,
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{
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const struct nlmsghdr *nlmsg;
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update_time_offset(tv);
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update_time_offset(tv, nlmon->time_format);
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for (nlmsg = data; NLMSG_OK(nlmsg, size);
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nlmsg = NLMSG_NEXT(nlmsg, size)) {
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@ -8394,7 +8427,7 @@ void nlmon_print_pae(struct nlmon *nlmon, const struct timeval *tv,
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{
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char extra_str[16];
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update_time_offset(tv);
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update_time_offset(tv, nlmon->time_format);
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sprintf(extra_str, "len %u", size);
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@ -25,12 +25,18 @@
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struct nlmon;
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enum time_format {
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TIME_FORMAT_DELTA,
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TIME_FORMAT_UTC,
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};
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struct nlmon_config {
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bool nortnl;
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bool nowiphy;
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bool noscan;
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bool noies;
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bool read_only;
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enum time_format time_format;
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};
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struct nlmon *nlmon_open(uint16_t id, const char *pathname,
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