1 /*
2 * NetBSD implementation for mapping the IP stat arrays into struct's
3 * Required for NetBSD versions produced after April 7th 2008 (4+)
4 *
5 * Based on: http://mail-index.netbsd.org/pkgsrc-users/2008/04/27/msg007095.html
6 */
7
8 #include <sys/param.h>
9 #include <sys/sysctl.h>
10 #include <sys/protosw.h>
11
12 #include <netinet/in.h>
13 #include <netinet/in_systm.h>
14 #include <netinet/ip.h>
15 #include <netinet/ip_icmp.h>
16 #include <netinet/ip_var.h>
17 #include <netinet/icmp_var.h>
18 #include <netinet/icmp6.h>
19 #include <netinet/tcp.h>
20 #include <netinet/tcp_timer.h>
21 #include <netinet/tcp_var.h>
22 #include <netinet/udp.h>
23 #include <netinet/udp_var.h>
24
25 #include <net-snmp/net-snmp-config.h>
26 #include <net-snmp/net-snmp-includes.h>
27 #include <net-snmp/agent/net-snmp-agent-includes.h>
28
29 #include "kernel_netbsd.h"
30
31 #if defined(NETBSD_STATS_VIA_SYSCTL)
32
33 int
netbsd_read_icmp_stat(struct icmp_mib * mib)34 netbsd_read_icmp_stat(struct icmp_mib *mib)
35 {
36 uint64_t icmpstat[ICMP_NSTATS];
37 size_t size = sizeof(icmpstat);
38 int i;
39
40 (void)memset(mib, 0, sizeof(*mib));
41
42 if (-1 == sysctlbyname("net.inet.icmp.stats", icmpstat, &size, NULL, 0)) {
43 snmp_perror("netbsd_read_icmp_stat: net.inet.icmp.stats");
44 return -1;
45 }
46
47 mib->icmpInMsgs = icmpstat[ICMP_STAT_BADCODE]
48 + icmpstat[ICMP_STAT_TOOSHORT]
49 + icmpstat[ICMP_STAT_CHECKSUM]
50 + icmpstat[ICMP_STAT_BADLEN];
51 for (i = 0; i <= ICMP_MAXTYPE; i++)
52 mib->icmpInMsgs += icmpstat[ICMP_STAT_INHIST + i];
53 mib->icmpInErrors = icmpstat[ICMP_STAT_BADCODE]
54 + icmpstat[ICMP_STAT_TOOSHORT]
55 + icmpstat[ICMP_STAT_CHECKSUM]
56 + icmpstat[ICMP_STAT_BADLEN];
57 mib->icmpInDestUnreachs = icmpstat[ICMP_STAT_INHIST + ICMP_UNREACH];
58 mib->icmpInTimeExcds = icmpstat[ICMP_STAT_INHIST + ICMP_TIMXCEED];
59 mib->icmpInParmProbs = icmpstat[ICMP_STAT_INHIST + ICMP_PARAMPROB];
60 mib->icmpInSrcQuenchs = icmpstat[ICMP_STAT_INHIST + ICMP_SOURCEQUENCH];
61 mib->icmpInRedirects = icmpstat[ICMP_STAT_INHIST + ICMP_REDIRECT];
62 mib->icmpInEchos = icmpstat[ICMP_STAT_INHIST + ICMP_ECHO];
63 mib->icmpInEchoReps = icmpstat[ICMP_STAT_INHIST + ICMP_ECHOREPLY];
64 mib->icmpInTimestamps = icmpstat[ICMP_STAT_INHIST + ICMP_TSTAMP];
65 mib->icmpInTimestampReps
66 = icmpstat[ICMP_STAT_INHIST + ICMP_TSTAMPREPLY];
67 mib->icmpInAddrMasks = icmpstat[ICMP_STAT_INHIST + ICMP_MASKREQ];
68 mib->icmpInAddrMaskReps = icmpstat[ICMP_STAT_INHIST + ICMP_MASKREPLY];
69 mib->icmpOutMsgs = icmpstat[ICMP_STAT_OLDSHORT]
70 + icmpstat[ICMP_STAT_OLDICMP];
71 for (i = 0; i <= ICMP_MAXTYPE; i++)
72 mib->icmpOutMsgs += icmpstat[ICMP_STAT_OUTHIST + i];
73 mib->icmpOutErrors = icmpstat[ICMP_STAT_OLDSHORT]
74 + icmpstat[ICMP_STAT_OLDICMP];
75 mib->icmpOutDestUnreachs = icmpstat[ICMP_STAT_OUTHIST + ICMP_UNREACH];
76 mib->icmpOutTimeExcds = icmpstat[ICMP_STAT_OUTHIST + ICMP_TIMXCEED];
77 mib->icmpOutParmProbs = icmpstat[ICMP_STAT_OUTHIST + ICMP_PARAMPROB];
78 mib->icmpOutSrcQuenchs
79 = icmpstat[ICMP_STAT_OUTHIST + ICMP_SOURCEQUENCH];
80 mib->icmpOutRedirects = icmpstat[ICMP_STAT_OUTHIST + ICMP_REDIRECT];
81 mib->icmpOutEchos = icmpstat[ICMP_STAT_OUTHIST + ICMP_ECHO];
82 mib->icmpOutEchoReps = icmpstat[ICMP_STAT_OUTHIST + ICMP_ECHOREPLY];
83 mib->icmpOutTimestamps = icmpstat[ICMP_STAT_OUTHIST + ICMP_TSTAMP];
84 mib->icmpOutTimestampReps
85 = icmpstat[ICMP_STAT_OUTHIST + ICMP_TSTAMPREPLY];
86 mib->icmpOutAddrMasks = icmpstat[ICMP_STAT_OUTHIST + ICMP_MASKREQ];
87 mib->icmpOutAddrMaskReps = icmpstat[ICMP_STAT_OUTHIST + ICMP_MASKREPLY];
88
89 return 0;
90 }
91
92
93 int
netbsd_read_icmp6_stat(struct icmp6_mib * mib)94 netbsd_read_icmp6_stat(struct icmp6_mib *mib)
95 {
96 uint64_t icmpstat[ICMP6_NSTATS];
97 size_t size = sizeof(icmpstat);
98 int i;
99
100 (void)memset(mib, 0, sizeof(*mib));
101
102 if (-1 == sysctlbyname("net.inet6.icmp6.stats", icmpstat, &size, NULL, 0)) {
103 snmp_perror("netbsd_read_icmp6_stat: net.inet6.icmp6.stats");
104 return -1;
105 }
106
107 mib->icmp6InMsgs = icmpstat[ICMP6_STAT_BADCODE]
108 + icmpstat[ICMP_STAT_TOOSHORT]
109 + icmpstat[ICMP_STAT_CHECKSUM]
110 + icmpstat[ICMP_STAT_BADLEN];
111 for (i = 0; i <= ICMP6_MAXTYPE; i++)
112 mib->icmp6InMsgs += icmpstat[ICMP6_STAT_INHIST + i];
113 mib->icmp6InErrors = icmpstat[ICMP6_STAT_BADCODE]
114 + icmpstat[ICMP6_STAT_TOOSHORT]
115 + icmpstat[ICMP6_STAT_CHECKSUM]
116 + icmpstat[ICMP6_STAT_BADLEN];
117 mib->icmp6InDestUnreachs = icmpstat[ICMP6_STAT_INHIST + ICMP6_DST_UNREACH];
118 mib->icmp6InPktTooBigs = icmpstat[ICMP6_STAT_INHIST + ICMP6_PACKET_TOO_BIG];
119 mib->icmp6InTimeExcds = icmpstat[ICMP6_STAT_INHIST + ICMP6_TIME_EXCEEDED];
120 mib->icmp6InParmProblems = icmpstat[ICMP6_STAT_INHIST + ICMP6_PARAM_PROB];
121 mib->icmp6InEchos = icmpstat[ICMP6_STAT_INHIST + ICMP6_ECHO_REQUEST];
122 mib->icmp6InEchoReplies = icmpstat[ICMP6_STAT_INHIST + ICMP6_ECHO_REPLY];
123 mib->icmp6InGroupMembQueries = icmpstat[ICMP6_STAT_INHIST + MLD_LISTENER_QUERY];
124 mib->icmp6InGroupMembResponses = icmpstat[ICMP6_STAT_INHIST + MLD_LISTENER_REPORT];
125 mib->icmp6InRouterSolicits = icmpstat[ICMP6_STAT_INHIST + ND_ROUTER_SOLICIT];
126 mib->icmp6InRouterAdvertisements = icmpstat[ICMP6_STAT_INHIST + ND_ROUTER_ADVERT];
127 mib->icmp6InNeighborSolicits = icmpstat[ICMP6_STAT_INHIST + ND_NEIGHBOR_SOLICIT];
128 mib->icmp6InNeighborAdvertisements = icmpstat[ICMP6_STAT_INHIST + ND_NEIGHBOR_ADVERT];
129 mib->icmp6InRedirects = icmpstat[ICMP6_STAT_INHIST + ND_REDIRECT];
130
131 mib->icmp6OutMsgs = icmpstat[ICMP6_STAT_BADCODE]
132 + icmpstat[ICMP6_STAT_TOOSHORT]
133 + icmpstat[ICMP6_STAT_CHECKSUM]
134 + icmpstat[ICMP6_STAT_BADLEN];
135 for (i = 0; i <= ICMP6_MAXTYPE; i++)
136 mib->icmp6OutMsgs += icmpstat[ICMP6_STAT_OUTHIST + i];
137 mib->icmp6OutDestUnreachs = icmpstat[ICMP6_STAT_OUTHIST + ICMP6_DST_UNREACH];
138 mib->icmp6OutPktTooBigs = icmpstat[ICMP6_STAT_OUTHIST + ICMP6_PACKET_TOO_BIG];
139 mib->icmp6OutTimeExcds = icmpstat[ICMP6_STAT_OUTHIST + ICMP6_TIME_EXCEEDED];
140 mib->icmp6OutParmProblems = icmpstat[ICMP6_STAT_OUTHIST + ICMP6_PARAM_PROB];
141 mib->icmp6OutEchos = icmpstat[ICMP6_STAT_OUTHIST + ICMP6_ECHO_REQUEST];
142 mib->icmp6OutEchoReplies = icmpstat[ICMP6_STAT_OUTHIST + ICMP6_ECHO_REPLY];
143 mib->icmp6OutRouterSolicits = icmpstat[ICMP6_STAT_OUTHIST + ND_ROUTER_SOLICIT];
144 mib->icmp6OutNeighborSolicits = icmpstat[ICMP6_STAT_OUTHIST + ND_NEIGHBOR_SOLICIT];
145 mib->icmp6OutNeighborAdvertisements = icmpstat[ICMP6_STAT_OUTHIST + ND_NEIGHBOR_ADVERT];
146 mib->icmp6OutRedirects = icmpstat[ICMP6_STAT_OUTHIST + ND_REDIRECT];
147 mib->icmp6OutGroupMembResponses = icmpstat[ICMP6_STAT_OUTHIST + MLD_LISTENER_REPORT];
148 mib->icmp6OutGroupMembReductions = icmpstat[ICMP6_STAT_OUTHIST + MLD_LISTENER_DONE];
149
150 return 0;
151 }
152
153
154 int
netbsd_read_icmp_msg_stat(struct icmp_mib * mib,struct icmp4_msg_mib * msgmib,int * flag)155 netbsd_read_icmp_msg_stat(struct icmp_mib *mib,
156 struct icmp4_msg_mib *msgmib,
157 int *flag)
158 {
159 netbsd_read_icmp_stat(mib);
160 *flag = 0;
161 return 0;
162 }
163
164
165 int
netbsd_read_icmp6_msg_stat(struct icmp6_mib * mib,struct icmp6_msg_mib * msgmib,int * support)166 netbsd_read_icmp6_msg_stat(struct icmp6_mib *mib,
167 struct icmp6_msg_mib *msgmib,
168 int *support)
169 {
170 uint64_t icmpstat[ICMP6_NSTATS];
171 size_t size = sizeof(icmpstat);
172 int i;
173
174 netbsd_read_icmp6_stat(mib);
175
176 if (-1 == sysctlbyname("net.inet6.icmp6.stats", icmpstat, &size, NULL, 0)) {
177 snmp_perror("netbsd_read_icmp6_stat: net.inet6.icmp6.stats");
178 return -1;
179 }
180
181 for (i = 0; i < 256; i++) {
182 msgmib->vals[i].InType = icmpstat[ICMP6_STAT_INHIST+i];
183 msgmib->vals[i].OutType = icmpstat[ICMP6_STAT_OUTHIST+i];
184 }
185 *support = 1;
186 return 0;
187 }
188
189
190 int
netbsd_read_ip_stat(struct ip_mib * mib)191 netbsd_read_ip_stat(struct ip_mib *mib)
192 {
193 uint64_t ipstat[IP_NSTATS];
194 size_t size = sizeof(ipstat);
195 int i;
196 static int sname[4] = { 4, 2, 0, 0 }; /* CTL_NET, PF_INET, IPPROTO_IP, 0 */
197 size_t len;
198
199 (void)memset(mib, 0, sizeof(*mib));
200
201 if (-1 == sysctlbyname("net.inet.ip.stats", ipstat, &size, NULL, 0)) {
202 snmp_perror("netbsd_read_ip_stat: net.inet.ip.stats");
203 return -1;
204 }
205
206 mib->ipForwarding = 0;
207 len = sizeof i;
208 sname[3] = IPCTL_FORWARDING;
209 if (0 == sysctl(sname, 4, &i, &len, 0, 0)) {
210 mib->ipForwarding = (long)i;
211 }
212
213 mib->ipDefaultTTL = 0;
214 sname[3] = IPCTL_DEFTTL;
215 if (0 == sysctl(sname, 4, &i, &len, 0, 0)) {
216 mib->ipDefaultTTL = (long)i;
217 }
218
219 mib->ipInReceives = ipstat[IP_STAT_TOTAL];
220 mib->ipInHdrErrors = ipstat[IP_STAT_BADSUM]
221 + ipstat[IP_STAT_TOOSHORT] + ipstat[IP_STAT_TOOSMALL]
222 + ipstat[IP_STAT_BADHLEN] + ipstat[IP_STAT_BADLEN];
223 mib->ipInAddrErrors = ipstat[IP_STAT_CANTFORWARD];
224 mib->ipForwDatagrams = ipstat[IP_STAT_FORWARD];
225 mib->ipInUnknownProtos = ipstat[IP_STAT_NOPROTO];
226 mib->ipInDiscards = ipstat[IP_STAT_FRAGDROPPED]; /* FIXME */
227 mib->ipInDelivers = ipstat[IP_STAT_DELIVERED];
228 mib->ipOutRequests = ipstat[IP_STAT_LOCALOUT];
229 mib->ipOutDiscards = ipstat[IP_STAT_ODROPPED];
230 mib->ipOutNoRoutes = 0; /* FIXME */
231 mib->ipReasmTimeout = 0; /* IPFRAGTTL; */
232 mib->ipReasmReqds = ipstat[IP_STAT_FRAGMENTS];
233 mib->ipReasmOKs = ipstat[IP_STAT_REASSEMBLED];
234 mib->ipReasmFails = ipstat[IP_STAT_FRAGDROPPED]
235 + ipstat[IP_STAT_FRAGTIMEOUT];
236 mib->ipFragOKs = ipstat[IP_STAT_FRAGMENTS];
237 mib->ipFragFails = ipstat[IP_STAT_CANTFRAG];
238 mib->ipFragCreates = ipstat[IP_STAT_OFRAGMENTS];
239 mib->ipRoutingDiscards = ipstat[IP_STAT_NOROUTE];
240
241 return 0;
242 }
243
244
245 int
netbsd_read_tcp_stat(struct tcp_mib * mib)246 netbsd_read_tcp_stat(struct tcp_mib *mib)
247 {
248 uint64_t tcpstat[TCP_NSTATS];
249 size_t size = sizeof(tcpstat);
250
251 (void)memset(mib, 0, sizeof(*mib));
252
253 if (-1 == sysctlbyname("net.inet.tcp.stats", tcpstat, &size, NULL, 0)) {
254 snmp_perror("netbsd_read_tcp_stat: net.inet.tcp.stats");
255 return -1;
256 }
257
258 mib->tcpRtoAlgorithm = 4; /* Assume Van Jacobsen's algorithm */
259 mib->tcpRtoMin = TCPTV_MIN;
260 mib->tcpRtoMax = TCPTV_REXMTMAX;
261 mib->tcpMaxConn = -1; /* Dynamic Maximum */
262 mib->tcpActiveOpens = tcpstat[TCP_STAT_CONNATTEMPT];
263 mib->tcpPassiveOpens = tcpstat[TCP_STAT_ACCEPTS];
264 mib->tcpAttemptFails = tcpstat[TCP_STAT_CONNDROPS];
265 mib->tcpEstabResets = tcpstat[TCP_STAT_DROPS];
266 mib->tcpCurrEstab = 0; /* FIXME */
267 mib->tcpInSegs = tcpstat[TCP_STAT_RCVTOTAL];
268 mib->tcpOutSegs = tcpstat[TCP_STAT_SNDTOTAL]
269 - tcpstat[TCP_STAT_SNDREXMITPACK];
270 mib->tcpRetransSegs = tcpstat[TCP_STAT_SNDREXMITPACK];
271 mib->tcpInErrs = tcpstat[TCP_STAT_RCVBADSUM]
272 + tcpstat[TCP_STAT_RCVBADOFF]
273 + tcpstat[TCP_STAT_RCVMEMDROP]
274 + tcpstat[TCP_STAT_RCVSHORT];
275 mib->tcpOutRsts = tcpstat[TCP_STAT_SNDCTRL]
276 - tcpstat[TCP_STAT_CLOSED];
277 mib->tcpInErrsValid = mib->tcpInErrs; /* FIXME */
278 mib->tcpOutRstsValid = mib->tcpOutRsts; /* FIXME */
279
280 return 0;
281 }
282
283
284 int
netbsd_read_udp_stat(struct udp_mib * mib)285 netbsd_read_udp_stat(struct udp_mib *mib)
286 {
287 uint64_t udpstat[UDP_NSTATS];
288 size_t size = sizeof(udpstat);
289
290 (void)memset(mib, 0, sizeof(*mib));
291
292 if (-1 == sysctlbyname("net.inet.udp.stats", udpstat, &size, NULL, 0)) {
293 snmp_perror("netbsd_read_udp_stat: net.inet.udp.stats");
294 return -1;
295 }
296
297 mib->udpInDatagrams = udpstat[UDP_STAT_IPACKETS];
298 mib->udpNoPorts = udpstat[UDP_STAT_NOPORT];
299 mib->udpOutDatagrams = udpstat[UDP_STAT_OPACKETS];
300 mib->udpInErrors = udpstat[UDP_STAT_HDROPS]
301 + udpstat[UDP_STAT_BADSUM] /* + udpstat[UDP_STAT_DISCARD] */ /* FIXME */
302 + udpstat[UDP_STAT_FULLSOCK] + udpstat[UDP_STAT_BADLEN];
303
304 return 0;
305 }
306
307 #endif
308