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BEGEMOT-IP-MIB.txt
(2.11 KB)
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BEGEMOT-MIB2-MIB.txt
(3.36 KB)
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mibII.c
(42.12 KB)
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mibII.h
(7.63 KB)
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mibII_begemot.c
(3.32 KB)
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mibII_ifmib.c
(2.32 KB)
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mibII_ifstack.c
(3.18 KB)
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mibII_interfaces.c
(12.6 KB)
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mibII_ip.c
(11.37 KB)
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mibII_ipaddr.c
(9.06 KB)
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mibII_nettomedia.c
(4.42 KB)
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mibII_rcvaddr.c
(3.67 KB)
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mibII_route.c
(11.97 KB)
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mibII_tcp.c
(9.07 KB)
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mibII_tree.def
(10.22 KB)
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mibII_udp.c
(6.38 KB)
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snmp_mibII.3
(10.9 KB)
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snmp_mibII.h
(5.28 KB)
Editing: mibII_udp.c
/* * Copyright (c) 2001-2003 * Fraunhofer Institute for Open Communication Systems (FhG Fokus). * All rights reserved. * * Author: Harti Brandt <harti@freebsd.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Begemot: bsnmp/snmp_mibII/mibII_udp.c,v 1.7 2005/05/23 09:03:42 brandt_h Exp $ * * udp */ #include "mibII.h" #include "mibII_oid.h" #include <sys/socketvar.h> #include <netinet/in_pcb.h> #include <netinet/udp.h> #include <netinet/ip_var.h> #include <netinet/udp_var.h> struct udp_index { struct asn_oid index; struct xinpcb *inp; }; static uint64_t udp_tick; static struct udpstat udpstat; static struct xinpgen *xinpgen; static size_t xinpgen_len; static u_int udp_total; static u_int oidnum; static struct udp_index *udpoids; static int udp_compare(const void *p1, const void *p2) { const struct udp_index *t1 = p1; const struct udp_index *t2 = p2; return (asn_compare_oid(&t1->index, &t2->index)); } static int fetch_udp(void) { size_t len; struct xinpgen *ptr; struct xinpcb *inp; struct udp_index *oid; in_addr_t inaddr; len = sizeof(udpstat); if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, NULL, 0) == -1) { syslog(LOG_ERR, "net.inet.udp.stats: %m"); return (-1); } if (len != sizeof(udpstat)) { syslog(LOG_ERR, "net.inet.udp.stats: wrong size"); return (-1); } udp_tick = get_ticks(); len = 0; if (sysctlbyname("net.inet.udp.pcblist", NULL, &len, NULL, 0) == -1) { syslog(LOG_ERR, "net.inet.udp.pcblist: %m"); return (-1); } if (len > xinpgen_len) { if ((ptr = realloc(xinpgen, len)) == NULL) { syslog(LOG_ERR, "%zu: %m", len); return (-1); } xinpgen = ptr; xinpgen_len = len; } if (sysctlbyname("net.inet.udp.pcblist", xinpgen, &len, NULL, 0) == -1) { syslog(LOG_ERR, "net.inet.udp.pcblist: %m"); return (-1); } udp_total = 0; for (ptr = (struct xinpgen *)(void *)((char *)xinpgen + xinpgen->xig_len); ptr->xig_len > sizeof(struct xinpgen); ptr = (struct xinpgen *)(void *)((char *)ptr + ptr->xig_len)) { inp = (struct xinpcb *)ptr; if (inp->inp_gencnt > xinpgen->xig_gen || (inp->inp_vflag & INP_IPV4) == 0) continue; udp_total++; } if (oidnum < udp_total) { oid = realloc(udpoids, udp_total * sizeof(udpoids[0])); if (oid == NULL) { free(udpoids); oidnum = 0; return (0); } udpoids = oid; oidnum = udp_total; } oid = udpoids; for (ptr = (struct xinpgen *)(void *)((char *)xinpgen + xinpgen->xig_len); ptr->xig_len > sizeof(struct xinpgen); ptr = (struct xinpgen *)(void *)((char *)ptr + ptr->xig_len)) { inp = (struct xinpcb *)ptr; if (inp->inp_gencnt > xinpgen->xig_gen || (inp->inp_vflag & INP_IPV4) == 0) continue; oid->inp = inp; oid->index.len = 5; inaddr = ntohl(inp->inp_laddr.s_addr); oid->index.subs[0] = (inaddr >> 24) & 0xff; oid->index.subs[1] = (inaddr >> 16) & 0xff; oid->index.subs[2] = (inaddr >> 8) & 0xff; oid->index.subs[3] = (inaddr >> 0) & 0xff; oid->index.subs[4] = ntohs(inp->inp_lport); oid++; } qsort(udpoids, udp_total, sizeof(udpoids[0]), udp_compare); return (0); } int op_udp(struct snmp_context *ctx __unused, struct snmp_value *value, u_int sub, u_int iidx __unused, enum snmp_op op) { switch (op) { case SNMP_OP_GETNEXT: abort(); case SNMP_OP_GET: break; case SNMP_OP_SET: return (SNMP_ERR_NOT_WRITEABLE); case SNMP_OP_ROLLBACK: case SNMP_OP_COMMIT: abort(); } if (udp_tick < this_tick) if (fetch_udp() == -1) return (SNMP_ERR_GENERR); switch (value->var.subs[sub - 1]) { case LEAF_udpInDatagrams: value->v.uint32 = udpstat.udps_ipackets; break; case LEAF_udpNoPorts: value->v.uint32 = udpstat.udps_noport + udpstat.udps_noportbcast + udpstat.udps_noportmcast; break; case LEAF_udpInErrors: value->v.uint32 = udpstat.udps_hdrops + udpstat.udps_badsum + udpstat.udps_badlen + udpstat.udps_fullsock; break; case LEAF_udpOutDatagrams: value->v.uint32 = udpstat.udps_opackets; break; } return (SNMP_ERR_NOERROR); } int op_udptable(struct snmp_context *ctx __unused, struct snmp_value *value, u_int sub, u_int iidx __unused, enum snmp_op op) { u_int i; if (udp_tick < this_tick) if (fetch_udp() == -1) return (SNMP_ERR_GENERR); switch (op) { case SNMP_OP_GETNEXT: for (i = 0; i < udp_total; i++) if (index_compare(&value->var, sub, &udpoids[i].index) < 0) break; if (i == udp_total) return (SNMP_ERR_NOSUCHNAME); index_append(&value->var, sub, &udpoids[i].index); break; case SNMP_OP_GET: for (i = 0; i < udp_total; i++) if (index_compare(&value->var, sub, &udpoids[i].index) == 0) break; if (i == udp_total) return (SNMP_ERR_NOSUCHNAME); break; case SNMP_OP_SET: return (SNMP_ERR_NOT_WRITEABLE); case SNMP_OP_ROLLBACK: case SNMP_OP_COMMIT: default: abort(); } switch (value->var.subs[sub - 1]) { case LEAF_udpLocalAddress: value->v.ipaddress[0] = udpoids[i].index.subs[0]; value->v.ipaddress[1] = udpoids[i].index.subs[1]; value->v.ipaddress[2] = udpoids[i].index.subs[2]; value->v.ipaddress[3] = udpoids[i].index.subs[3]; break; case LEAF_udpLocalPort: value->v.integer = udpoids[i].index.subs[4]; break; } return (SNMP_ERR_NOERROR); }
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