diff options
author | David Ahern <dsa@cumulusnetworks.com> | 2017-05-03 14:05:07 -0700 |
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committer | Thomas Haller <thaller@redhat.com> | 2017-05-12 10:09:15 +0200 |
commit | 92b96a48ecd08c650bd038bbb0c7e0d640734d2e (patch) | |
tree | 9b0b58a8b87f20afe49cbea821b05226b605c67c /src | |
parent | d55f004c5ad4b202cab5593551554cdad4f1a444 (diff) | |
download | libnl-92b96a48ecd08c650bd038bbb0c7e0d640734d2e.tar.gz |
nl-monitor: All user to specify line format
nl-monitor defaults to stats. Allow user to select brief and details.
The known_groups is moved up to a global to allow a proper print_usage
function.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Thomas Haller <thaller@redhat.com>
Diffstat (limited to 'src')
-rw-r--r-- | src/nl-monitor.c | 110 |
1 files changed, 70 insertions, 40 deletions
diff --git a/src/nl-monitor.c b/src/nl-monitor.c index 754f8dca..830bd74b 100644 --- a/src/nl-monitor.c +++ b/src/nl-monitor.c @@ -14,70 +14,100 @@ #include <linux/rtnetlink.h> +static const struct { + enum rtnetlink_groups gr_id; + const char* gr_name; +} known_groups[] = { + { RTNLGRP_LINK, "link" }, + { RTNLGRP_NOTIFY, "notify" }, + { RTNLGRP_NEIGH, "neigh" }, + { RTNLGRP_TC, "tc" }, + { RTNLGRP_IPV4_IFADDR, "ipv4-ifaddr" }, + { RTNLGRP_IPV4_MROUTE, "ipv4-mroute" }, + { RTNLGRP_IPV4_ROUTE, "ipv4-route" }, + { RTNLGRP_IPV6_IFADDR, "ipv6-ifaddr" }, + { RTNLGRP_IPV6_MROUTE, "ipv6-mroute" }, + { RTNLGRP_IPV6_ROUTE, "ipv6-route" }, + { RTNLGRP_IPV6_IFINFO, "ipv6-ifinfo" }, + { RTNLGRP_DECnet_IFADDR, "decnet-ifaddr" }, + { RTNLGRP_DECnet_ROUTE, "decnet-route" }, + { RTNLGRP_IPV6_PREFIX, "ipv6-prefix" }, + { RTNLGRP_NONE, NULL } +}; + static void obj_input(struct nl_object *obj, void *arg) { - struct nl_dump_params dp = { - .dp_type = NL_DUMP_STATS, - .dp_fd = stdout, - .dp_dump_msgtype = 1, - }; - - nl_object_dump(obj, &dp); + nl_object_dump(obj, arg); } static int event_input(struct nl_msg *msg, void *arg) { - if (nl_msg_parse(msg, &obj_input, NULL) < 0) + if (nl_msg_parse(msg, &obj_input, arg) < 0) fprintf(stderr, "<<EVENT>> Unknown message type\n"); /* Exit nl_recvmsgs_def() and return to the main select() */ return NL_STOP; } +static void print_usage(void) +{ + int i; + + printf( + "Usage: nl-monitor [OPTION] [<groups>]\n" + "\n" + "Options\n" + " -f, --format=TYPE Output format { brief | details | stats }\n" + " -h, --help Show this help.\n" + "\n" + ); + printf("Known groups:"); + for (i = 0; known_groups[i].gr_id != RTNLGRP_NONE; i++) + printf(" %s", known_groups[i].gr_name); + printf("\n"); + exit(0); +} + int main(int argc, char *argv[]) { + struct nl_dump_params dp = { + .dp_type = NL_DUMP_STATS, + .dp_fd = stdout, + .dp_dump_msgtype = 1, + }; + struct nl_sock *sock; int err = 1; int i, idx; - static const struct { - enum rtnetlink_groups gr_id; - const char* gr_name; - } known_groups[] = { - { RTNLGRP_LINK, "link" }, - { RTNLGRP_NOTIFY, "notify" }, - { RTNLGRP_NEIGH, "neigh" }, - { RTNLGRP_TC, "tc" }, - { RTNLGRP_IPV4_IFADDR, "ipv4-ifaddr" }, - { RTNLGRP_IPV4_MROUTE, "ipv4-mroute" }, - { RTNLGRP_IPV4_ROUTE, "ipv4-route" }, - { RTNLGRP_IPV6_IFADDR, "ipv6-ifaddr" }, - { RTNLGRP_IPV6_MROUTE, "ipv6-mroute" }, - { RTNLGRP_IPV6_ROUTE, "ipv6-route" }, - { RTNLGRP_IPV6_IFINFO, "ipv6-ifinfo" }, - { RTNLGRP_DECnet_IFADDR, "decnet-ifaddr" }, - { RTNLGRP_DECnet_ROUTE, "decnet-route" }, - { RTNLGRP_IPV6_PREFIX, "ipv6-prefix" }, - { RTNLGRP_NONE, NULL } - }; - sock = nl_cli_alloc_socket(); nl_socket_disable_seq_check(sock); - nl_socket_modify_cb(sock, NL_CB_VALID, NL_CB_CUSTOM, event_input, NULL); - - if (argc > 1 && !strcasecmp(argv[1], "-h")) { - printf("Usage: nl-monitor [<groups>]\n"); - - printf("Known groups:"); - for (i = 0; known_groups[i].gr_id != RTNLGRP_NONE; i++) - printf(" %s", known_groups[i].gr_name); - printf("\n"); - return 2; + nl_socket_modify_cb(sock, NL_CB_VALID, NL_CB_CUSTOM, event_input, &dp); + + for (;;) { + int c, optidx = 0; + static struct option long_opts[] = { + { "format", 1, 0, 'f' }, + { 0, 0, 0, 0 } + }; + + c = getopt_long(argc, argv, "f:h", long_opts, &optidx); + if (c == -1) + break; + + switch (c) { + case 'f': + dp.dp_type = nl_cli_parse_dumptype(optarg); + break; + default: + print_usage(); + break; + } } nl_cli_connect(sock, NETLINK_ROUTE); - for (idx = 1; argc > idx; idx++) { + for (idx = optind; argc > idx; idx++) { for (i = 0; known_groups[i].gr_id != RTNLGRP_NONE; i++) { if (!strcmp(argv[idx], known_groups[i].gr_name)) { |