Annotation of embedaddon/bmon/src/in_sysctl.c, revision 1.1
1.1 ! misho 1: /*
! 2: * in_sysctl.c sysctl (BSD)
! 3: *
! 4: * Copyright (c) 2001-2004 Thomas Graf <tgraf@suug.ch>
! 5: *
! 6: * Permission is hereby granted, free of charge, to any person obtaining a
! 7: * copy of this software and associated documentation files (the "Software"),
! 8: * to deal in the Software without restriction, including without limitation
! 9: * the rights to use, copy, modify, merge, publish, distribute, sublicense,
! 10: * and/or sell copies of the Software, and to permit persons to whom the
! 11: * Software is furnished to do so, subject to the following conditions:
! 12: *
! 13: * The above copyright notice and this permission notice shall be included
! 14: * in all copies or substantial portions of the Software.
! 15: *
! 16: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
! 17: * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! 18: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
! 19: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! 20: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
! 21: * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
! 22: * DEALINGS IN THE SOFTWARE.
! 23: */
! 24:
! 25: #include <bmon/bmon.h>
! 26: #include <bmon/input.h>
! 27: #include <bmon/item.h>
! 28: #include <bmon/conf.h>
! 29: #include <bmon/node.h>
! 30: #include <bmon/utils.h>
! 31:
! 32: #if defined SYS_BSD
! 33: #include <sys/socket.h>
! 34: #include <net/if.h>
! 35: #include <sys/param.h>
! 36: #include <sys/sysctl.h>
! 37: #include <net/if_dl.h>
! 38: #include <net/route.h>
! 39:
! 40: static int c_debug;
! 41:
! 42: static void sysctl_read(void)
! 43: {
! 44: int mib[] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0};
! 45: size_t n;
! 46: char *buf, *next, *lim;
! 47:
! 48: if (sysctl(mib, 6, NULL, &n, NULL, 0) < 0)
! 49: quit("sysctl() failed");
! 50:
! 51: if (c_debug)
! 52: fprintf(stderr, "sysctl 1-pass n=%d\n", (int) n);
! 53:
! 54: buf = xcalloc(1, n);
! 55:
! 56: if (sysctl(mib, 6, buf, &n, NULL, 0) < 0)
! 57: quit("sysctl() failed");
! 58:
! 59: if (c_debug)
! 60: fprintf(stderr, "sysctl 2-pass n=%d\n", (int) n);
! 61:
! 62: lim = buf + n;
! 63: next = buf;
! 64:
! 65: while (next < lim) {
! 66: struct if_msghdr *ifm, *nextifm;
! 67: struct sockaddr_dl *sdl;
! 68: item_t *it;
! 69:
! 70: ifm = (struct if_msghdr *) next;
! 71: if (ifm->ifm_type != RTM_IFINFO)
! 72: break;
! 73:
! 74: next += ifm->ifm_msglen;
! 75: while (next < lim) {
! 76: nextifm = (struct if_msghdr *) next;
! 77: if (nextifm->ifm_type != RTM_NEWADDR)
! 78: break;
! 79: next += nextifm->ifm_msglen;
! 80: }
! 81:
! 82: sdl = (struct sockaddr_dl *) (ifm + 1);
! 83:
! 84: if (sdl->sdl_family != AF_LINK)
! 85: continue;
! 86:
! 87: if (get_show_only_running() && !(ifm->ifm_flags & IFF_UP))
! 88: continue;
! 89:
! 90: if (c_debug)
! 91: fprintf(stderr, "Processing %s\n", sdl->sdl_data);
! 92:
! 93: it = lookup_item(get_local_node(), sdl->sdl_data, 0, 0);
! 94: if (it == NULL)
! 95: continue;
! 96:
! 97: it->i_major_attr = BYTES;
! 98: it->i_minor_attr = PACKETS;
! 99:
! 100: update_attr(it, PACKETS,
! 101: ifm->ifm_data.ifi_ipackets,
! 102: ifm->ifm_data.ifi_opackets,
! 103: RX_PROVIDED | TX_PROVIDED);
! 104:
! 105: update_attr(it, BYTES,
! 106: ifm->ifm_data.ifi_ibytes,
! 107: ifm->ifm_data.ifi_obytes,
! 108: RX_PROVIDED | TX_PROVIDED);
! 109:
! 110: update_attr(it, ERRORS,
! 111: ifm->ifm_data.ifi_ierrors,
! 112: ifm->ifm_data.ifi_oerrors,
! 113: RX_PROVIDED | TX_PROVIDED);
! 114:
! 115: update_attr(it, COLLISIONS,
! 116: 0, ifm->ifm_data.ifi_collisions,
! 117: TX_PROVIDED);
! 118:
! 119: update_attr(it, MULTICAST,
! 120: ifm->ifm_data.ifi_imcasts,
! 121: 0,
! 122: RX_PROVIDED);
! 123:
! 124: update_attr(it, DROP,
! 125: 0,
! 126: ifm->ifm_data.ifi_iqdrops,
! 127: TX_PROVIDED);
! 128:
! 129: notify_update(it, NULL);
! 130: increase_lifetime(it, 1);
! 131: }
! 132:
! 133: xfree(buf);
! 134: }
! 135:
! 136: static void print_help(void)
! 137: {
! 138: printf(
! 139: "sysctl - sysctl statistic collector for BSD and Darwin\n" \
! 140: "\n" \
! 141: " BSD and Darwin statistic collector using sysctl()\n" \
! 142: " Author: Thomas Graf <tgraf@suug.ch>\n" \
! 143: "\n");
! 144: }
! 145:
! 146: static void sysctl_set_opts(tv_t *attrs)
! 147: {
! 148: while (attrs) {
! 149: if (!strcasecmp(attrs->type, "debug"))
! 150: c_debug = 1;
! 151: else if (!strcasecmp(attrs->type, "help")) {
! 152: print_help();
! 153: exit(0);
! 154: }
! 155: attrs = attrs->next;
! 156: }
! 157: }
! 158:
! 159: static int sysctl_probe(void)
! 160: {
! 161: size_t n;
! 162: int mib[] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0};
! 163: if (sysctl(mib, 6, NULL, &n, NULL, 0) < 0)
! 164: return 0;
! 165: return 1;
! 166: }
! 167:
! 168: static struct input_module kstat_ops = {
! 169: .im_name = "sysctl",
! 170: .im_read = sysctl_read,
! 171: .im_set_opts = sysctl_set_opts,
! 172: .im_probe = sysctl_probe,
! 173: };
! 174:
! 175: static void __init sysctl_init(void)
! 176: {
! 177: register_input_module(&kstat_ops);
! 178: }
! 179:
! 180: #endif
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